Merge branch 'master' of git://git.samba.org/samba

66 files changed, 2496 insertions, 2253 deletions

diff --git a/source3/Makefile.in b/source3/Makefile.in
index cf74182f27..1c9c0c1204 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -73,6 +73,7 @@ WINBIND_NSS_EXTRA_LIBS=@WINBIND_NSS_EXTRA_LIBS@
 WINBIND_NSS_PTHREAD=@WINBIND_NSS_PTHREAD@
 PAM_WINBIND_EXTRA_LIBS=@PAM_WINBIND_EXTRA_LIBS@
 DNSSD_LIBS=@DNSSD_LIBS@
+AVAHI_LIBS=@AVAHI_LIBS@
 POPT_LIBS=@POPTLIBS@
 LIBTALLOC_LIBS=@LIBTALLOC_LIBS@
 LIBTDB_LIBS=@LIBTDB_LIBS@
@@ -158,7 +159,7 @@ CODEPAGEDIR = @codepagedir@
 # the directory where pid files go
 PIDDIR = @piddir@
 
-FLAGS = -I. -I$(srcdir) @FLAGS1@ @SAMBA_CPPFLAGS@ $(CPPFLAGS) -I$(CTDBDIR)/include $(ISA) -I$(srcdir)/lib -I.. -D_SAMBA_BUILD_=3 -I../source4
+FLAGS = -I. -I$(srcdir) @FLAGS1@ @SAMBA_CPPFLAGS@ $(CPPFLAGS) $(ISA) -I$(srcdir)/lib -I.. -D_SAMBA_BUILD_=3 -I../source4
 
 PATH_FLAGS = -DSMB_PASSWD_FILE=\"$(SMB_PASSWD_FILE)\" \
 	-DPRIVATE_DIR=\"$(PRIVATE_DIR)\" \
@@ -173,7 +174,6 @@ PATH_FLAGS = -DSMB_PASSWD_FILE=\"$(SMB_PASSWD_FILE)\" \
 	-DMODULESDIR=\"$(MODULESDIR)\" \
 	-DLOGFILEBASE=\"$(LOGFILEBASE)\" \
 	-DSHLIBEXT=\"@SHLIBEXT@\" \
-	-DCTDBDIR=\"$(CTDBDIR)\" \
 	-DNCALRPCDIR=\"$(NCALRPCDIR)\" \
 	-DCONFIGDIR=\"$(CONFIGDIR)\" \
 	-DCODEPAGEDIR=\"$(CODEPAGEDIR)\" \
@@ -255,6 +255,8 @@ AFS_OBJ = lib/afs.o
 
 AFS_SETTOKEN_OBJ = lib/afs_settoken.o
 
+AVAHI_OBJ = @AVAHI_OBJ@
+
 SERVER_MUTEX_OBJ = lib/server_mutex.o
 
 PASSCHANGE_OBJ = libsmb/passchange.o
@@ -282,7 +284,8 @@ LIBNDR_OBJ = ../librpc/ndr/ndr_basic.o \
 	     ../librpc/ndr/ndr_sec_helper.o \
 	     librpc/ndr/ndr_string.o \
 	     ../librpc/ndr/uuid.o \
-		 librpc/ndr/util.o
+	     librpc/ndr/util.o \
+	     ../librpc/gen_ndr/ndr_dcerpc.o
 
 RPCCLIENT_NDR_OBJ = rpc_client/ndr.o
 
@@ -316,7 +319,7 @@ RPC_PARSE_OBJ0 = rpc_parse/parse_prs.o rpc_parse/parse_misc.o
 
 # this includes only the low level parse code, not stuff
 # that requires knowledge of security contexts
-RPC_PARSE_OBJ1 = $(RPC_PARSE_OBJ0) rpc_parse/parse_sec.o
+RPC_PARSE_OBJ1 = $(RPC_PARSE_OBJ0)
 
 RPC_PARSE_OBJ2 = rpc_parse/parse_rpc.o \
 		 rpc_client/init_netlogon.o \
@@ -364,7 +367,8 @@ LIB_OBJ = $(LIBSAMBAUTIL_OBJ) $(UTIL_OBJ) $(CRYPTO_OBJ) \
 	  lib/util.o lib/util_sock.o lib/sock_exec.o lib/util_sec.o \
 	  lib/substitute.o lib/dbwrap_util.o \
 	  lib/ms_fnmatch.o lib/select.o lib/errmap_unix.o \
-	  lib/tallocmsg.o lib/dmallocmsg.o libsmb/smb_signing.o \
+	  lib/tallocmsg.o lib/dmallocmsg.o \
+	  libsmb/clisigning.o libsmb/smb_signing.o \
 	  lib/iconv.o lib/pam_errors.o intl/lang_tdb.o \
 	  lib/conn_tdb.o lib/adt_tree.o lib/gencache.o \
 	  lib/module.o lib/events.o @LIBTEVENT_OBJ0@ \
@@ -687,6 +691,7 @@ VFS_ONEFS_OBJ = modules/vfs_onefs.o modules/onefs_acl.o modules/onefs_system.o \
 VFS_ONEFS_SHADOW_COPY_OBJ = modules/vfs_onefs_shadow_copy.o modules/onefs_shadow_copy.o
 PERFCOUNT_ONEFS_OBJ = modules/perfcount_onefs.o
 PERFCOUNT_TEST_OBJ = modules/perfcount_test.o
+VFS_DIRSORT_OBJ = modules/vfs_dirsort.o
 
 PLAINTEXT_AUTH_OBJ = auth/pampass.o auth/pass_check.o
 
@@ -731,7 +736,7 @@ SMBD_OBJ_SRV = smbd/files.o smbd/chgpasswd.o smbd/connection.o \
 	       smbd/change_trust_pw.o smbd/fake_file.o \
 	       smbd/quotas.o smbd/ntquotas.o $(AFS_OBJ) smbd/msdfs.o \
 	       $(AFS_SETTOKEN_OBJ) smbd/aio.o smbd/statvfs.o \
-	       smbd/dmapi.o \
+	       smbd/dmapi.o smbd/signing.o \
 	       smbd/file_access.o \
 	       smbd/dnsregister.o smbd/globals.o \
 	       $(MANGLE_OBJ) @VFS_STATIC@
@@ -741,7 +746,7 @@ SMBD_OBJ_BASE = $(PARAM_WITHOUT_REG_OBJ) $(SMBD_OBJ_SRV) $(LIBSMB_OBJ) \
 		$(LOCKING_OBJ) $(PASSDB_OBJ) $(PRINTING_OBJ) $(PROFILE_OBJ) \
 		$(LIB_OBJ) $(PRINTBACKEND_OBJ) $(OPLOCK_OBJ) \
 		$(NOTIFY_OBJ) $(GROUPDB_OBJ) $(AUTH_OBJ) \
-		$(LIBMSRPC_OBJ) $(LIBMSRPC_GEN_OBJ) \
+		$(LIBMSRPC_OBJ) $(LIBMSRPC_GEN_OBJ) $(AVAHI_OBJ) \
 		$(LIBADS_OBJ) $(KRBCLIENT_OBJ) $(LIBADS_SERVER_OBJ) \
 		$(REG_FULL_OBJ) $(POPT_LIB_OBJ) $(BUILDOPT_OBJ) \
 		$(SMBLDAP_OBJ) $(LDB_OBJ) $(LIBNET_OBJ) @LIBWBCLIENT_STATIC@ \
@@ -1277,6 +1282,10 @@ everything:: all libtalloc libsmbclient libnetapi debug2html smbfilter talloctor
 .SUFFIXES:
 .SUFFIXES: .c .o .lo
 
+.PHONY: showflags SHOWFLAGS
+
+showflags: SHOWFLAGS
+
 SHOWFLAGS::
 	@echo "Using CFLAGS     = $(CFLAGS)"
 	@echo "      PICFLAG    = $(PICFLAG)"
@@ -1385,7 +1394,7 @@ bin/smbd@EXEEXT@: $(BINARY_PREREQS) $(SMBD_OBJ) @LIBTALLOC_SHARED@ @LIBTDB_SHARE
 	@echo Linking $@
 	@$(CC) -o $@ $(SMBD_OBJ) $(LDFLAGS) $(LDAP_LIBS) \
 		$(KRB5LIBS) $(DYNEXP) $(PRINT_LIBS) $(AUTH_LIBS) \
-		$(ACL_LIBS) $(PASSDB_LIBS) $(LIBS) $(DNSSD_LIBS) \
+		$(ACL_LIBS) $(PASSDB_LIBS) $(LIBS) $(DNSSD_LIBS) $(AVAHI_LIBS) \
 		$(POPT_LIBS) @SMBD_LIBS@ $(LIBTALLOC_LIBS) $(LIBTDB_LIBS) \
 		$(WINBIND_LIBS) $(ZLIB_LIBS)
 
@@ -1433,19 +1442,19 @@ bin/smbspool@EXEEXT@: $(BINARY_PREREQS) $(CUPS_OBJ) @BUILD_POPT@ @LIBTALLOC_SHAR
 	@$(CC) -o $@ $(CUPS_OBJ) $(DYNEXP) $(LDFLAGS) $(LIBS) \
 		$(KRB5LIBS) $(LDAP_LIBS) $(POPT_LIBS) $(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(ZLIB_LIBS)
 
-bin/mount.cifs@EXEEXT@: $(BINARY_PREREQS) $(CIFS_MOUNT_OBJ) @BUILD_POPT@
+bin/mount.cifs@EXEEXT@: $(BINARY_PREREQS) $(CIFS_MOUNT_OBJ)
 	@echo Linking $@
-	@$(CC) -o $@ $(CIFS_MOUNT_OBJ) $(DYNEXP) $(LDFLAGS) $(POPT_LIBS)
+	@$(CC) -o $@ $(CIFS_MOUNT_OBJ) $(DYNEXP) $(LDFLAGS)
 
-bin/umount.cifs@EXEEXT@: $(BINARY_PREREQS) $(CIFS_UMOUNT_OBJ) @BUILD_POPT@
+bin/umount.cifs@EXEEXT@: $(BINARY_PREREQS) $(CIFS_UMOUNT_OBJ)
 	@echo Linking $@
-	@$(CC) -o $@ $(CIFS_UMOUNT_OBJ) $(DYNEXP) $(LDFLAGS) $(POPT_LIBS)
+	@$(CC) -o $@ $(CIFS_UMOUNT_OBJ) $(DYNEXP) $(LDFLAGS)
 
-bin/cifs.upcall@EXEEXT@: $(BINARY_PREREQS) $(CIFS_UPCALL_OBJ) $(LIBSMBCLIENT_OBJ1) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
+bin/cifs.upcall@EXEEXT@: $(BINARY_PREREQS) $(CIFS_UPCALL_OBJ) $(LIBSMBCLIENT_OBJ1) @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
 	@$(CC) -o $@ $(CIFS_UPCALL_OBJ) $(DYNEXP) $(LDFLAGS) \
 		-lkeyutils $(LIBS) $(LIBSMBCLIENT_OBJ1) $(KRB5LIBS) \
-		$(LDAP_LIBS) $(POPT_LIBS) $(LIBTALLOC_LIBS) $(WINBIND_LIBS) \
+		$(LDAP_LIBS) $(LIBTALLOC_LIBS) $(WINBIND_LIBS) \
 		$(LIBTDB_LIBS) $(NSCD_LIBS)
 
 bin/testparm@EXEEXT@: $(BINARY_PREREQS) $(TESTPARM_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@
@@ -1571,7 +1580,7 @@ bin/pdbtest@EXEEXT@: $(BINARY_PREREQS) $(PDBTEST_OBJ) @BUILD_POPT@ @LIBTALLOC_SH
 
 bin/vfstest@EXEEXT@: $(BINARY_PREREQS) $(VFSTEST_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
-	@$(CC) -o $@ $(VFSTEST_OBJ) $(LDFLAGS) $(TERMLDFLAGS) \
+	@$(CC) -o $@ $(VFSTEST_OBJ) $(LDFLAGS) $(TERMLDFLAGS) $(AVAHI_LIBS) \
 		$(TERMLIBS) $(DYNEXP) $(PRINT_LIBS) $(AUTH_LIBS) $(DNSSD_LIBS) \
 		$(ACL_LIBS) $(LIBS) $(POPT_LIBS) $(KRB5LIBS) $(LDAP_LIBS) \
 		@SMBD_LIBS@ $(NSCD_LIBS) $(LIBTALLOC_LIBS) $(LIBTDB_LIBS) \
@@ -1609,37 +1618,37 @@ bin/ldbedit: $(BINARY_PREREQS) $(LDBEDIT_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @L
 	@echo Linking $@
 	@$(CC) -o $@ $(LDBEDIT_OBJ) $(DYNEXP) $(LDFLAGS) \
 		$(LIBS) $(POPT_LIBS) $(LDAP_LIBS) \
-		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
+		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS)
 
 bin/ldbsearch: $(BINARY_PREREQS) $(LDBSEARCH_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
 	@$(CC) -o $@ $(LDBSEARCH_OBJ) $(DYNEXP) $(LDFLAGS) \
 		$(LIBS) $(POPT_LIBS) $(LDAP_LIBS) \
-		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
+		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS)
 
 bin/ldbadd: $(BINARY_PREREQS) $(LDBADD_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
 	@$(CC) -o $@ $(LDBADD_OBJ) $(DYNEXP) $(LDFLAGS) \
 		$(LIBS) $(POPT_LIBS) $(LDAP_LIBS) \
-		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
+		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS)
 
 bin/ldbmodify: $(BINARY_PREREQS) $(LDBMODIFY_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
 	@$(CC) -o $@ $(LDBMODIFY_OBJ) $(DYNEXP) $(LDFLAGS) \
 		$(LIBS) $(POPT_LIBS) $(LDAP_LIBS) \
-		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
+		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS)
 
 bin/ldbdel: $(BINARY_PREREQS) $(LDBDEL_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
 	@$(CC) -o $@ $(LDBDEL_OBJ) $(DYNEXP) $(LDFLAGS) \
 		$(LIBS) $(POPT_LIBS) $(LDAP_LIBS) \
-		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
+		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS)
 
 bin/ldbrename: $(BINARY_PREREQS) $(LDBRENAME_OBJ) @BUILD_POPT@ @LIBTALLOC_SHARED@ @LIBTDB_SHARED@ @LIBWBCLIENT_SHARED@
 	@echo Linking $@
 	@$(CC) $(FLAGS) -o $@ $(LDBRENAME_OBJ) $(DYNEXP) $(LDFLAGS) \
 		$(LIBS) $(POPT_LIBS) $(LDAP_LIBS) \
-		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
+		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS)
 
 bin/versiontest: $(BINARY_PREREQS) lib/version_test.o $(VERSION_OBJ)
 	@echo Linking $@
@@ -2625,6 +2634,10 @@ bin/security.@SHLIBEXT@: $(BINARY_PREREQS) libgpo/gpext/security.o
 	@echo "Building plugin $@"
 	@$(SHLD_MODULE) libgpo/gpext/security.o
 
+bin/dirsort.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_DIRSORT_OBJ)
+	@echo "Building plugin $@"
+	@$(SHLD_MODULE) $(VFS_DIRSORT_OBJ)
+
 #########################################################
 ## IdMap NSS plugins
 
@@ -2648,7 +2661,7 @@ bin/ntlm_auth@EXEEXT@: $(BINARY_PREREQS) $(NTLM_AUTH_OBJ) $(PARAM_OBJ) \
 bin/pam_smbpass.@SHLIBEXT@: $(BINARY_PREREQS) $(PAM_SMBPASS_OBJ) @LIBTALLOC_SHARED@ @LIBWBCLIENT_SHARED@ @LIBTDB_SHARED@
 	@echo "Linking shared library $@"
 	@$(SHLD) $(LDSHFLAGS) -o $@ $(PAM_SMBPASS_OBJ) -lpam $(DYNEXP) \
-		$(LIBS) $(LDAP_LIBS) $(KRB5LIBS) $(NSCD_LIBS) \
+		$(LIBS) $(LDAP_LIBS) $(NSCD_LIBS) \
 		$(LIBTALLOC_LIBS) $(LIBTDB_LIBS) $(WINBIND_LIBS)
 
 bin/tdbbackup@EXEEXT@: $(BINARY_PREREQS) $(TDBBACKUP_OBJ) @LIBTALLOC_SHARED@ @LIBTDB_SHARED@
diff --git a/source3/configure.in b/source3/configure.in
index dc5850aba1..1cf8d9ca4a 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -152,13 +152,11 @@ AC_SUBST(NSCD_LIBS)
 # do this here since AC_CACHE_CHECK apparently sets the CFLAGS to "-g -O2"
 # if it has no value.  This prevent *very* large debug binaries from occurring
 # by default.
-if test "x$CFLAGS" = x; then
-  CFLAGS="-O"
-fi
 if test "x$debug" = "xyes" ; then
 	CFLAGS="${CFLAGS} -g"
-else
-	CFLAGS="${CFLAGS} -O"
+fi
+if test "x$CFLAGS" = x; then
+  CFLAGS="-O"
 fi
 
 m4_include(../lib/socket_wrapper/config.m4)
@@ -879,7 +877,7 @@ fi
 
 AC_CHECK_FUNCS(dirfd)
 if test x"$ac_cv_func_dirfd" = x"yes"; then
-	default_shared_modules="$default_shared_modules vfs_syncops"
+	default_shared_modules="$default_shared_modules vfs_syncops vfs_dirsort"
 fi
 
 AC_CACHE_CHECK([for struct sigevent type],samba_cv_struct_sigevent, [
@@ -5975,10 +5973,10 @@ AC_SUBST(FLAGS1)
 # Check if user wants DNS service discovery support
 
 AC_ARG_ENABLE(dnssd,
-[AS_HELP_STRING([--enable-dnssd], [Enable DNS service discovery support (default=auto)])])
+[AS_HELP_STRING([--enable-dnssd], [Enable DNS service discovery support (default=no)])])
 
 AC_SUBST(DNSSD_LIBS)
-if test x"$enable_dnssd" != x"no"; then
+if test x"$enable_dnssd" == x"yes"; then
     have_dnssd_support=yes
 
     AC_CHECK_HEADERS(dns_sd.h)
@@ -6007,6 +6005,42 @@ if test x"$enable_dnssd" != x"no"; then
 fi
 
 #################################################
+# Check if user wants avahi support
+
+AC_ARG_ENABLE(avahi,
+[AS_HELP_STRING([--enable-avahi], [Enable Avahi support (default=auto)])])
+
+AC_SUBST(AVAHI_LIBS)
+if test x"$enable_avahi" != x"no"; then
+    have_avahi_support=yes
+
+    AC_CHECK_HEADERS(avahi-common/watch.h)
+    if test x"$ac_cv_header_avahi_common_watch_h" != x"yes"; then
+	have_avahi_support=no
+    fi
+
+    AC_CHECK_HEADERS(avahi-client/client.h)
+    if test x"$ac_cv_header_avahi_common_watch_h" != x"yes"; then
+	have_avahi_support=no
+    fi
+
+    AC_CHECK_LIB_EXT(avahi-client, AVAHI_LIBS, avahi_client_new)
+    if test x"$ac_cv_lib_ext_avahi_client_avahi_client_new" != x"yes"; then
+	have_avahi_support=no
+    fi
+
+    if test x"$have_avahi_support" = x"yes"; then
+	AC_DEFINE(WITH_AVAHI_SUPPORT, 1,
+		[Whether to enable avahi support])
+	AC_SUBST(AVAHI_OBJ, "lib/avahi.o smbd/avahi_register.o")
+    else
+	if test x"$enable_avahi" = x"yes"; then
+	    AC_MSG_ERROR(avahi support not available)
+	fi
+    fi
+fi
+
+#################################################
 # Check to see if we should use the included iniparser
 
 AC_ARG_WITH(included-iniparser,
@@ -6213,6 +6247,7 @@ SMB_MODULE(vfs_acl_tdb, \$(VFS_ACL_TDB_OBJ), "bin/acl_tdb.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_smb_traffic_analyzer, \$(VFS_SMB_TRAFFIC_ANALYZER_OBJ), "bin/smb_traffic_analyzer.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_onefs, \$(VFS_ONEFS), "bin/onefs.$SHLIBEXT", VFS)
 SMB_MODULE(vfs_onefs_shadow_copy, \$(VFS_ONEFS_SHADOW_COPY), "bin/onefs_shadow_copy.$SHLIBEXT", VFS)
+SMB_MODULE(vfs_dirsort, \$(VFS_DIRSORT_OBJ), "bin/dirsort.$SHLIBEXT", VFS)
 
 SMB_SUBSYSTEM(VFS,smbd/vfs.o)
 
diff --git a/source3/include/async_smb.h b/source3/include/async_smb.h
index 7fc4ff7d27..2ac1101a1e 100644
--- a/source3/include/async_smb.h
+++ b/source3/include/async_smb.h
@@ -63,6 +63,8 @@ struct cli_request {
 	 */
 	uint16_t mid;
 
+	uint32_t seqnum;
+
 	/**
 	 * The bytes we have to ship to the server
 	 */
diff --git a/source3/include/client.h b/source3/include/client.h
index 320a90e66b..73a1d7b554 100644
--- a/source3/include/client.h
+++ b/source3/include/client.h
@@ -71,26 +71,26 @@ struct rpc_cli_transport {
 	/**
 	 * Trigger an async read from the server. May return a short read.
 	 */
-	struct async_req *(*read_send)(TALLOC_CTX *mem_ctx,
-				       struct event_context *ev,
-                                       uint8_t *data, size_t size,
-				       void *priv);
+	struct tevent_req *(*read_send)(TALLOC_CTX *mem_ctx,
+					struct event_context *ev,
+					uint8_t *data, size_t size,
+					void *priv);
 	/**
 	 * Get the result from the read_send operation.
 	 */
-	NTSTATUS (*read_recv)(struct async_req *req, ssize_t *preceived);
+	NTSTATUS (*read_recv)(struct tevent_req *req, ssize_t *preceived);
 
 	/**
 	 * Trigger an async write to the server. May return a short write.
 	 */
-	struct async_req *(*write_send)(TALLOC_CTX *mem_ctx,
-					struct event_context *ev,
-					const uint8_t *data, size_t size,
-					void *priv);
+	struct tevent_req *(*write_send)(TALLOC_CTX *mem_ctx,
+					 struct event_context *ev,
+					 const uint8_t *data, size_t size,
+					 void *priv);
 	/**
 	 * Get the result from the read_send operation.
 	 */
-	NTSTATUS (*write_recv)(struct async_req *req, ssize_t *psent);
+	NTSTATUS (*write_recv)(struct tevent_req *req, ssize_t *psent);
 
 	/**
 	 * This is an optimization for the SMB transport. It models the
@@ -98,15 +98,15 @@ struct rpc_cli_transport {
 	 * trip. The transport implementation is free to set this to NULL,
 	 * cli_pipe.c will fall back to the explicit write/read routines.
 	 */
-	struct async_req *(*trans_send)(TALLOC_CTX *mem_ctx,
-					struct event_context *ev,
-					uint8_t *data, size_t data_len,
-					uint32_t max_rdata_len,
-					void *priv);
+	struct tevent_req *(*trans_send)(TALLOC_CTX *mem_ctx,
+					 struct event_context *ev,
+					 uint8_t *data, size_t data_len,
+					 uint32_t max_rdata_len,
+					 void *priv);
 	/**
 	 * Get the result from the trans_send operation.
 	 */
-	NTSTATUS (*trans_recv)(struct async_req *req, TALLOC_CTX *mem_ctx,
+	NTSTATUS (*trans_recv)(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 			       uint8_t **prdata, uint32_t *prdata_len);
 	void *priv;
 };
@@ -166,6 +166,13 @@ struct smb_trans_enc_state {
         } s;
 };
 
+struct cli_state_seqnum {
+	struct cli_state_seqnum *prev, *next;
+	uint16_t mid;
+	uint32_t seqnum;
+	bool persistent;
+};
+
 struct cli_state {
 	/**
 	 * A list of subsidiary connections for DFS.
@@ -217,6 +224,7 @@ struct cli_state {
 	size_t max_xmit;
 	size_t max_mux;
 	char *outbuf;
+	struct cli_state_seqnum *seqnum;
 	char *inbuf;
 	unsigned int bufsize;
 	int initialised;
@@ -231,7 +239,7 @@ struct cli_state {
 	TALLOC_CTX *call_mem_ctx;
 #endif
 
-	smb_sign_info sign_info;
+	struct smb_signing_state *signing_state;
 
 	struct smb_trans_enc_state *trans_enc_state; /* Setup if we're encrypting SMB's. */
 
diff --git a/source3/include/includes.h b/source3/include/includes.h
index 4bf4b5c735..c883e17713 100644
--- a/source3/include/includes.h
+++ b/source3/include/includes.h
@@ -598,6 +598,7 @@ struct smb_iconv_convenience *lp_iconv_convenience(void *lp_ctx);
 #include "messages.h"
 #include "locking.h"
 #include "smb_perfcount.h"
+#include "smb_signing.h"
 #include "smb.h"
 #include "nameserv.h"
 #include "secrets.h"
diff --git a/source3/include/proto.h b/source3/include/proto.h
index 9bffa4d319..77be0aba09 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -150,6 +150,10 @@ bool is_trusted_domain(const char* dom_name);
 
 NTSTATUS auth_winbind_init(void);
 
+/* The following definitions come from auth/auth_wbc.c  */
+
+NTSTATUS auth_wbc_init(void);
+
 /* The following definitions come from auth/pampass.c  */
 
 bool smb_pam_claim_session(char *user, char *tty, char *rhost);
@@ -2410,6 +2414,10 @@ bool receive_getdc_response(TALLOC_CTX *mem_ctx,
 int cli_set_message(char *buf,int num_words,int num_bytes,bool zero);
 unsigned int cli_set_timeout(struct cli_state *cli, unsigned int timeout);
 void cli_set_port(struct cli_state *cli, int port);
+bool cli_state_seqnum_persistent(struct cli_state *cli,
+				 uint16_t mid);
+bool cli_state_seqnum_remove(struct cli_state *cli,
+			     uint16_t mid);
 bool cli_receive_smb(struct cli_state *cli);
 ssize_t cli_receive_smb_data(struct cli_state *cli, char *buffer, size_t len);
 bool cli_receive_smb_readX_header(struct cli_state *cli);
@@ -3181,29 +3189,34 @@ void cli_free_enc_buffer(struct cli_state *cli, char *buf);
 NTSTATUS cli_decrypt_message(struct cli_state *cli);
 NTSTATUS cli_encrypt_message(struct cli_state *cli, char *buf, char **buf_out);
 
-/* The following definitions come from libsmb/smb_signing.c  */
+/* The following definitions come from libsmb/clisigning.c  */
 
 bool cli_simple_set_signing(struct cli_state *cli,
 			    const DATA_BLOB user_session_key,
 			    const DATA_BLOB response);
-bool cli_null_set_signing(struct cli_state *cli);
 bool cli_temp_set_signing(struct cli_state *cli);
-void cli_free_signing_context(struct cli_state *cli);
-void cli_calculate_sign_mac(struct cli_state *cli, char *buf);
-bool cli_check_sign_mac(struct cli_state *cli, char *buf);
-bool client_set_trans_sign_state_on(struct cli_state *cli, uint16 mid);
-bool client_set_trans_sign_state_off(struct cli_state *cli, uint16 mid);
+void cli_calculate_sign_mac(struct cli_state *cli, char *buf, uint32_t *seqnum);
+bool cli_check_sign_mac(struct cli_state *cli, const char *buf, uint32_t seqnum);
 bool client_is_signing_on(struct cli_state *cli);
-bool srv_oplock_set_signing(bool onoff);
-bool srv_check_sign_mac(const char *inbuf, bool must_be_ok);
-void srv_calculate_sign_mac(char *outbuf);
-void srv_defer_sign_response(uint16 mid);
-void srv_cancel_sign_response(uint16 mid, bool cancel);
-void srv_set_signing_negotiated(void);
-bool srv_is_signing_active(void);
-bool srv_is_signing_negotiated(void);
-bool srv_signing_started(void);
-void srv_set_signing(const DATA_BLOB user_session_key, const DATA_BLOB response);
+bool client_is_signing_allowed(struct cli_state *cli);
+bool client_is_signing_mandatory(struct cli_state *cli);
+void cli_set_signing_negotiated(struct cli_state *cli);
+
+/* The following definitions come from smbd/signing.c  */
+
+struct smbd_server_connection;
+bool srv_check_sign_mac(struct smbd_server_connection *conn,
+			const char *inbuf, uint32_t *seqnum);
+void srv_calculate_sign_mac(struct smbd_server_connection *conn,
+			    char *outbuf, uint32_t seqnum);
+void srv_cancel_sign_response(struct smbd_server_connection *conn);
+bool srv_init_signing(struct smbd_server_connection *conn);
+void srv_set_signing_negotiated(struct smbd_server_connection *conn);
+bool srv_is_signing_active(struct smbd_server_connection *conn);
+bool srv_is_signing_negotiated(struct smbd_server_connection *conn);
+void srv_set_signing(struct smbd_server_connection *conn,
+		     const DATA_BLOB user_session_key,
+		     const DATA_BLOB response);
 
 /* The following definitions come from libsmb/smbdes.c  */
 
@@ -3779,6 +3792,8 @@ bool send_mailslot(bool unique, const char *mailslot,char *buf, size_t len,
 
 /* The following definitions come from nmbd/nmbd_processlogon.c  */
 
+bool initialize_nmbd_proxy_logon(void);
+
 void process_logon_packet(struct packet_struct *p, char *buf,int len, 
                           const char *mailslot);
 
@@ -4345,7 +4360,7 @@ const char *lp_printcapname(void);
 bool lp_disable_spoolss( void );
 void lp_set_spoolss_state( uint32 state );
 uint32 lp_get_spoolss_state( void );
-bool lp_use_sendfile(int snum);
+bool lp_use_sendfile(int snum, struct smb_signing_state *signing_state);
 void set_use_sendfile(int snum, bool val);
 void set_store_dos_attributes(int snum, bool val);
 void lp_set_mangling_method(const char *new_method);
@@ -4828,7 +4843,7 @@ WERROR add_printer_data( NT_PRINTER_INFO_LEVEL_2 *p2, const char *key, const cha
 REGISTRY_VALUE* get_printer_data( NT_PRINTER_INFO_LEVEL_2 *p2, const char *key, const char *value );
 WERROR mod_a_printer(NT_PRINTER_INFO_LEVEL *printer, uint32 level);
 bool set_driver_init(NT_PRINTER_INFO_LEVEL *printer, uint32 level);
-bool del_driver_init(char *drivername);
+bool del_driver_init(const char *drivername);
 WERROR save_driver_init(NT_PRINTER_INFO_LEVEL *printer, uint32 level, uint8 *data, uint32 data_len);
 WERROR get_a_printer( Printer_entry *print_hnd,
 			NT_PRINTER_INFO_LEVEL **pp_printer,
@@ -4840,8 +4855,8 @@ WERROR get_a_printer_search( Printer_entry *print_hnd,
 			const char *sharename);
 uint32 free_a_printer(NT_PRINTER_INFO_LEVEL **pp_printer, uint32 level);
 uint32 add_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL driver, uint32 level);
-WERROR get_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL *driver, uint32 level,
-                            fstring drivername, const char *architecture, uint32 version);
+WERROR get_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL *driver, uint32_t level,
+			    const char *drivername, const char *architecture, uint32_t version);
 uint32 free_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL driver, uint32 level);
 bool printer_driver_in_use ( NT_PRINTER_DRIVER_INFO_LEVEL_3 *info_3 );
 bool printer_driver_files_in_use ( NT_PRINTER_DRIVER_INFO_LEVEL_3 *info );
@@ -5241,22 +5256,22 @@ NTSTATUS rpccli_netlogon_set_trust_password(struct rpc_pipe_client *cli,
 
 /* The following definitions come from rpc_client/cli_pipe.c  */
 
-struct async_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
-					struct event_context *ev,
-					struct rpc_pipe_client *cli,
-					uint8_t op_num,
-					prs_struct *req_data);
-NTSTATUS rpc_api_pipe_req_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
+struct tevent_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
+					 struct event_context *ev,
+					 struct rpc_pipe_client *cli,
+					 uint8_t op_num,
+					 prs_struct *req_data);
+NTSTATUS rpc_api_pipe_req_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 			       prs_struct *reply_pdu);
 NTSTATUS rpc_api_pipe_req(TALLOC_CTX *mem_ctx, struct rpc_pipe_client *cli,
 			uint8 op_num,
 			prs_struct *in_data,
 			prs_struct *out_data);
-struct async_req *rpc_pipe_bind_send(TALLOC_CTX *mem_ctx,
-				     struct event_context *ev,
-				     struct rpc_pipe_client *cli,
-				     struct cli_pipe_auth_data *auth);
-NTSTATUS rpc_pipe_bind_recv(struct async_req *req);
+struct tevent_req *rpc_pipe_bind_send(TALLOC_CTX *mem_ctx,
+				      struct event_context *ev,
+				      struct rpc_pipe_client *cli,
+				      struct cli_pipe_auth_data *auth);
+NTSTATUS rpc_pipe_bind_recv(struct tevent_req *req);
 NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
 		       struct cli_pipe_auth_data *auth);
 unsigned int rpccli_set_timeout(struct rpc_pipe_client *cli,
@@ -5678,10 +5693,8 @@ NTSTATUS cli_do_rpc_ndr(struct rpc_pipe_client *cli,
 bool smb_io_time(const char *desc, NTTIME *nttime, prs_struct *ps, int depth);
 bool smb_io_system_time(const char *desc, prs_struct *ps, int depth, SYSTEMTIME *systime);
 bool make_systemtime(SYSTEMTIME *systime, struct tm *unixtime);
-bool smb_io_dom_sid(const char *desc, DOM_SID *sid, prs_struct *ps, int depth);
 bool smb_io_uuid(const char *desc, struct GUID *uuid, 
 		 prs_struct *ps, int depth);
-void init_unistr(UNISTR *str, const char *buf);
 void init_unistr2(UNISTR2 *str, const char *buf, enum unistr2_term_codes flags);
 
 /* The following definitions come from rpc_parse/parse_prs.c  */
@@ -5803,11 +5816,6 @@ bool smb_io_rpc_auth_schannel_chk(const char *desc, int auth_len,
                                 RPC_AUTH_SCHANNEL_CHK * chk,
 				prs_struct *ps, int depth);
 
-/* The following definitions come from rpc_parse/parse_sec.c  */
-
-bool sec_io_desc(const char *desc, SEC_DESC **ppsd, prs_struct *ps, int depth);
-bool sec_io_desc_buf(const char *desc, SEC_DESC_BUF **ppsdb, prs_struct *ps, int depth);
-
 /* The following definitions come from rpc_server/srv_eventlog_lib.c  */
 
 TDB_CONTEXT *elog_init_tdb( char *tdbfilename );
@@ -6720,7 +6728,9 @@ SEC_DESC *get_nt_acl_no_snum( TALLOC_CTX *ctx, const char *fname);
 
 void smbd_setup_sig_term_handler(void);
 void smbd_setup_sig_hup_handler(void);
-bool srv_send_smb(int fd, char *buffer, bool do_encrypt,
+bool srv_send_smb(int fd, char *buffer,
+		  bool no_signing, uint32_t seqnum,
+		  bool do_encrypt,
 		  struct smb_perfcount_data *pcd);
 int srv_set_message(char *buf,
                         int num_words,
@@ -7217,6 +7227,16 @@ NTSTATUS idmap_sid_to_gid(const char *domname, DOM_SID *sid, gid_t *gid);
 
 NTSTATUS nss_info_template_init( void );
 
+/* The following definitions come from lib/avahi.c */
+
+struct AvahiPoll *tevent_avahi_poll(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev);
+
+/* The following definitions come from smbd/avahi_register.c */
+
+void *avahi_start_register(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
+			   uint16_t port);
+
 /* Misc protos */
 
 #endif /*  _PROTO_H_  */
diff --git a/source3/include/rpc_dce.h b/source3/include/rpc_dce.h
index 580b14f1d8..ca58040757 100644
--- a/source3/include/rpc_dce.h
+++ b/source3/include/rpc_dce.h
@@ -81,16 +81,6 @@ enum RPC_PKT_TYPE {
 #define RPC_PIPE_AUTH_SEAL_LEVEL 0x6
 #endif
 
-#define DCERPC_FAULT_OP_RNG_ERROR	0x1c010002
-#define DCERPC_FAULT_UNK_IF		0x1c010003
-#define DCERPC_FAULT_INVALID_TAG	0x1c000006
-#define DCERPC_FAULT_CONTEXT_MISMATCH	0x1c00001a
-#define DCERPC_FAULT_OTHER		0x00000001
-#define DCERPC_FAULT_ACCESS_DENIED	0x00000005
-#define DCERPC_FAULT_CANT_PERFORM	0x000006d8
-#define DCERPC_FAULT_NDR		0x000006f7
-
-
 /* Netlogon schannel auth type and level */
 #define SCHANNEL_SIGN_SIGNATURE { 0x77, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00 }
 #define SCHANNEL_SEAL_SIGNATURE { 0x77, 0x00, 0x7a, 0x00, 0xff, 0xff, 0x00, 0x00 }
diff --git a/source3/include/smb.h b/source3/include/smb.h
index 281a218256..01e6ddf64c 100644
--- a/source3/include/smb.h
+++ b/source3/include/smb.h
@@ -252,6 +252,8 @@ struct id_map {
 #include "librpc/gen_ndr/drsuapi.h"
 #include "librpc/gen_ndr/drsblobs.h"
 #include "librpc/gen_ndr/spoolss.h"
+#include "librpc/gen_ndr/dcerpc.h"
+#include "librpc/gen_ndr/ndr_dcerpc.h"
 
 struct lsa_dom_info {
 	bool valid;
@@ -621,6 +623,7 @@ struct smb_request {
 	uint16 flags2;
 	uint16 smbpid;
 	uint16 mid;
+	uint32_t seqnum;
 	uint16 vuid;
 	uint16 tid;
 	uint8  wct;
@@ -722,6 +725,7 @@ struct pending_message_list {
 	struct timeval request_time; /* When was this first issued? */
 	struct timed_event *te;
 	struct smb_perfcount_data pcd;
+	uint32_t seqnum;
 	bool encrypted;
 	DATA_BLOB buf;
 	DATA_BLOB private_data;
@@ -1847,21 +1851,6 @@ struct ip_service {
 /* Special name type used to cause a _kerberos DNS lookup. */
 #define KDC_NAME_TYPE 0xDCDC
 
-/* Used by the SMB signing functions. */
-
-typedef struct smb_sign_info {
-	void (*sign_outgoing_message)(char *outbuf, struct smb_sign_info *si);
-	bool (*check_incoming_message)(const char *inbuf, struct smb_sign_info *si, bool must_be_ok);
-	void (*free_signing_context)(struct smb_sign_info *si);
-	void *signing_context;
-
-	bool negotiated_smb_signing;
-	bool allow_smb_signing;
-	bool doing_signing;
-	bool mandatory_signing;
-	bool seen_valid; /* Have I ever seen a validly signed packet? */
-} smb_sign_info;
-
 struct ea_struct {
 	uint8 flags;
 	char *name;
diff --git a/source3/include/smb_signing.h b/source3/include/smb_signing.h
new file mode 100644
index 0000000000..770c40cb35
--- /dev/null
+++ b/source3/include/smb_signing.h
@@ -0,0 +1,46 @@
+/*
+   Unix SMB/CIFS implementation.
+   SMB Signing Code
+   Copyright (C) Jeremy Allison 2003.
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
+   Copyright (C) Stefan Metzmacher 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _SMB_SIGNING_H_
+#define _SMB_SIGNING_H_
+
+struct smb_signing_state;
+
+struct smb_signing_state *smb_signing_init(TALLOC_CTX *mem_ctx,
+					   bool allowed,
+					   bool mandatory);
+uint32_t smb_signing_next_seqnum(struct smb_signing_state *si, bool oneway);
+void smb_signing_cancel_reply(struct smb_signing_state *si, bool oneway);
+void smb_signing_sign_pdu(struct smb_signing_state *si,
+			  uint8_t *outbuf, uint32_t seqnum);
+bool smb_signing_check_pdu(struct smb_signing_state *si,
+			   const uint8_t *inbuf, uint32_t seqnum);
+bool smb_signing_set_bsrspyl(struct smb_signing_state *si);
+bool smb_signing_activate(struct smb_signing_state *si,
+			  const DATA_BLOB user_session_key,
+			  const DATA_BLOB response);
+bool smb_signing_is_active(struct smb_signing_state *si);
+bool smb_signing_is_allowed(struct smb_signing_state *si);
+bool smb_signing_is_mandatory(struct smb_signing_state *si);
+bool smb_signing_set_negotiated(struct smb_signing_state *si);
+bool smb_signing_is_negotiated(struct smb_signing_state *si);
+
+#endif /* _SMB_SIGNING_H_ */
diff --git a/source3/lib/avahi.c b/source3/lib/avahi.c
new file mode 100644
index 0000000000..269b329e64
--- /dev/null
+++ b/source3/lib/avahi.c
@@ -0,0 +1,275 @@
+/*
+   Unix SMB/CIFS implementation.
+   Connect avahi to lib/tevents
+   Copyright (C) Volker Lendecke 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+#include <avahi-common/watch.h>
+
+struct avahi_poll_context {
+	struct tevent_context *ev;
+	AvahiWatch **watches;
+	AvahiTimeout **timeouts;
+};
+
+struct AvahiWatch {
+	struct avahi_poll_context *ctx;
+	struct tevent_fd *fde;
+	int fd;
+	AvahiWatchEvent latest_event;
+	AvahiWatchCallback callback;
+	void *userdata;
+};
+
+struct AvahiTimeout {
+	struct avahi_poll_context *ctx;
+	struct tevent_timer *te;
+	AvahiTimeoutCallback callback;
+	void *userdata;
+};
+
+static uint16_t avahi_flags_map_to_tevent(AvahiWatchEvent event)
+{
+	return ((event & AVAHI_WATCH_IN) ? TEVENT_FD_READ : 0)
+		| ((event & AVAHI_WATCH_OUT) ? TEVENT_FD_WRITE : 0);
+}
+
+static void avahi_fd_handler(struct tevent_context *ev,
+			     struct tevent_fd *fde, uint16_t flags,
+			     void *private_data);
+
+static AvahiWatch *avahi_watch_new(const AvahiPoll *api, int fd,
+				   AvahiWatchEvent event,
+				   AvahiWatchCallback callback,
+				   void *userdata)
+{
+	struct avahi_poll_context *ctx = talloc_get_type_abort(
+		api->userdata, struct avahi_poll_context);
+	int num_watches = talloc_array_length(ctx->watches);
+	AvahiWatch **tmp, *watch_ctx;
+
+	tmp = talloc_realloc(ctx, ctx->watches, AvahiWatch *, num_watches + 1);
+	if (tmp == NULL) {
+		return NULL;
+	}
+	ctx->watches = tmp;
+
+	watch_ctx = talloc(tmp, AvahiWatch);
+	if (watch_ctx == NULL) {
+		goto fail;
+	}
+	ctx->watches[num_watches] = watch_ctx;
+
+	watch_ctx->ctx = ctx;
+	watch_ctx->fde = tevent_add_fd(ctx->ev, watch_ctx, fd,
+				       avahi_flags_map_to_tevent(event),
+				       avahi_fd_handler, watch_ctx);
+	if (watch_ctx->fde == NULL) {
+		goto fail;
+	}
+	watch_ctx->callback = callback;
+	watch_ctx->userdata = userdata;
+	return watch_ctx;
+
+ fail:
+	TALLOC_FREE(watch_ctx);
+	ctx->watches = talloc_realloc(ctx, ctx->watches, AvahiWatch *,
+				      num_watches);
+	return NULL;
+}
+
+static void avahi_fd_handler(struct tevent_context *ev,
+			     struct tevent_fd *fde, uint16_t flags,
+			     void *private_data)
+{
+	AvahiWatch *watch_ctx = talloc_get_type_abort(private_data, AvahiWatch);
+
+	watch_ctx->latest_event =
+		((flags & TEVENT_FD_READ) ? AVAHI_WATCH_IN : 0)
+		| ((flags & TEVENT_FD_WRITE) ? AVAHI_WATCH_OUT : 0);
+
+	watch_ctx->callback(watch_ctx, watch_ctx->fd, watch_ctx->latest_event,
+			    watch_ctx->userdata);
+}
+
+static void avahi_watch_update(AvahiWatch *w, AvahiWatchEvent event)
+{
+	tevent_fd_set_flags(w->fde, avahi_flags_map_to_tevent(event));
+}
+
+static AvahiWatchEvent avahi_watch_get_events(AvahiWatch *w)
+{
+	return w->latest_event;
+}
+
+static void avahi_watch_free(AvahiWatch *w)
+{
+	int i, num_watches;
+	AvahiWatch **watches = w->ctx->watches;
+	struct avahi_poll_context *ctx;
+
+	num_watches = talloc_array_length(watches);
+
+	for (i=0; i<num_watches; i++) {
+		if (w == watches[i]) {
+			break;
+		}
+	}
+	if (i == num_watches) {
+		return;
+	}
+	ctx = w->ctx;
+	TALLOC_FREE(w);
+	memmove(&watches[i], &watches[i+1],
+		sizeof(*watches) * (num_watches - i - 1));
+	ctx->watches = talloc_realloc(ctx, watches, AvahiWatch *,
+				      num_watches - 1);
+}
+
+static void avahi_timeout_handler(struct tevent_context *ev,
+				  struct tevent_timer *te,
+				  struct timeval current_time,
+				  void *private_data);
+
+static AvahiTimeout *avahi_timeout_new(const AvahiPoll *api,
+				       const struct timeval *tv,
+				       AvahiTimeoutCallback callback,
+				       void *userdata)
+{
+	struct avahi_poll_context *ctx = talloc_get_type_abort(
+		api->userdata, struct avahi_poll_context);
+	int num_timeouts = talloc_array_length(ctx->timeouts);
+	AvahiTimeout **tmp, *timeout_ctx;
+
+	tmp = talloc_realloc(ctx, ctx->timeouts, AvahiTimeout *,
+			     num_timeouts + 1);
+	if (tmp == NULL) {
+		return NULL;
+	}
+	ctx->timeouts = tmp;
+
+	timeout_ctx = talloc(tmp, AvahiTimeout);
+	if (timeout_ctx == NULL) {
+		goto fail;
+	}
+	ctx->timeouts[num_timeouts] = timeout_ctx;
+
+	timeout_ctx->ctx = ctx;
+	if (tv == NULL) {
+		timeout_ctx->te = NULL;
+	} else {
+		timeout_ctx->te = tevent_add_timer(ctx->ev, timeout_ctx,
+						   *tv, avahi_timeout_handler,
+						   timeout_ctx);
+		if (timeout_ctx->te == NULL) {
+			goto fail;
+		}
+	}
+	timeout_ctx->callback = callback;
+	timeout_ctx->userdata = userdata;
+	return timeout_ctx;
+
+ fail:
+	TALLOC_FREE(timeout_ctx);
+	ctx->timeouts = talloc_realloc(ctx, ctx->timeouts, AvahiTimeout *,
+				       num_timeouts);
+	return NULL;
+}
+
+static void avahi_timeout_handler(struct tevent_context *ev,
+				  struct tevent_timer *te,
+				  struct timeval current_time,
+				  void *private_data)
+{
+	AvahiTimeout *timeout_ctx = talloc_get_type_abort(
+		private_data, AvahiTimeout);
+
+	TALLOC_FREE(timeout_ctx->te);
+	timeout_ctx->callback(timeout_ctx, timeout_ctx->userdata);
+}
+
+static void avahi_timeout_update(AvahiTimeout *t, const struct timeval *tv)
+{
+	TALLOC_FREE(t->te);
+
+	if (tv == NULL) {
+		/*
+		 * Disable this timer
+		 */
+		return;
+	}
+
+	t->te = tevent_add_timer(t->ctx->ev, t, *tv, avahi_timeout_handler, t);
+	/*
+	 * No failure mode defined here
+	 */
+	SMB_ASSERT(t->te != NULL);
+}
+
+static void avahi_timeout_free(AvahiTimeout *t)
+{
+	int i, num_timeouts;
+	AvahiTimeout **timeouts = t->ctx->timeouts;
+	struct avahi_poll_context *ctx;
+
+	num_timeouts = talloc_array_length(timeouts);
+
+	for (i=0; i<num_timeouts; i++) {
+		if (t == timeouts[i]) {
+			break;
+		}
+	}
+	if (i == num_timeouts) {
+		return;
+	}
+	ctx = t->ctx;
+	TALLOC_FREE(t);
+	memmove(&timeouts[i], &timeouts[i+1],
+		sizeof(*timeouts) * (num_timeouts - i - 1));
+	ctx->timeouts = talloc_realloc(ctx, timeouts, AvahiTimeout *,
+				       num_timeouts - 1);
+}
+
+struct AvahiPoll *tevent_avahi_poll(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev)
+{
+	struct AvahiPoll *result;
+	struct avahi_poll_context *ctx;
+
+	result = talloc(mem_ctx, struct AvahiPoll);
+	if (result == NULL) {
+		return result;
+	}
+	ctx = talloc_zero(result, struct avahi_poll_context);
+	if (ctx == NULL) {
+		TALLOC_FREE(result);
+		return NULL;
+	}
+	ctx->ev = ev;
+
+	result->watch_new		= avahi_watch_new;
+	result->watch_update		= avahi_watch_update;
+	result->watch_get_events	= avahi_watch_get_events;
+	result->watch_free		= avahi_watch_free;
+	result->timeout_new		= avahi_timeout_new;
+	result->timeout_update		= avahi_timeout_update;
+	result->timeout_free		= avahi_timeout_free;
+	result->userdata		= ctx;
+
+	return result;
+}
diff --git a/source3/lib/netapi/cm.c b/source3/lib/netapi/cm.c
index b676ae63dd..d28b2b2126 100644
--- a/source3/lib/netapi/cm.c
+++ b/source3/lib/netapi/cm.c
@@ -57,6 +57,11 @@ static WERROR libnetapi_open_ipc_connection(struct libnetapi_ctx *ctx,
 				false, false,
 				PROTOCOL_NT1,
 				0, 0x20);
+	if (cli_ipc) {
+		cli_set_username(cli_ipc, ctx->username);
+		cli_set_password(cli_ipc, ctx->password);
+		cli_set_domain(cli_ipc, ctx->workgroup);
+	}
 	TALLOC_FREE(auth_info);
 
 	if (!cli_ipc) {
diff --git a/source3/lib/netapi/user.c b/source3/lib/netapi/user.c
index e760a8b1de..1cbb883169 100644
--- a/source3/lib/netapi/user.c
+++ b/source3/lib/netapi/user.c
@@ -1497,6 +1497,9 @@ WERROR NetQueryDisplayInformation_r(struct libnetapi_ctx *ctx,
 
 	NTSTATUS status = NT_STATUS_OK;
 	WERROR werr;
+	WERROR werr_tmp;
+
+	*r->out.entries_read = 0;
 
 	ZERO_STRUCT(connect_handle);
 	ZERO_STRUCT(domain_handle);
@@ -1540,15 +1543,18 @@ WERROR NetQueryDisplayInformation_r(struct libnetapi_ctx *ctx,
 					       &total_size,
 					       &returned_size,
 					       &info);
-	if (!NT_STATUS_IS_OK(status)) {
-		werr = ntstatus_to_werror(status);
+	werr = ntstatus_to_werror(status);
+	if (NT_STATUS_IS_ERR(status)) {
 		goto done;
 	}
 
-	werr = convert_samr_dispinfo_to_NET_DISPLAY(ctx, &info,
-						    r->in.level,
-						    r->out.entries_read,
-						    r->out.buffer);
+	werr_tmp = convert_samr_dispinfo_to_NET_DISPLAY(ctx, &info,
+							r->in.level,
+							r->out.entries_read,
+							r->out.buffer);
+	if (!W_ERROR_IS_OK(werr_tmp)) {
+		werr = werr_tmp;
+	}
  done:
 	/* if last query */
 	if (NT_STATUS_IS_OK(status) ||
diff --git a/source3/lib/util_file.c b/source3/lib/util_file.c
index c5a9b7c29a..50ff844762 100644
--- a/source3/lib/util_file.c
+++ b/source3/lib/util_file.c
@@ -39,7 +39,7 @@ static char *file_pload(const char *syscmd, size_t *size)
 	total = 0;
 
 	while ((n = read(fd, buf, sizeof(buf))) > 0) {
-		p = (char *)SMB_REALLOC(p, total + n + 1);
+		p = talloc_realloc(NULL, p, char, total + n + 1);
 		if (!p) {
 		        DEBUG(0,("file_pload: failed to expand buffer!\n"));
 			close(fd);
diff --git a/source3/lib/wbclient.c b/source3/lib/wbclient.c
index 3cf992c7de..c22e168454 100644
--- a/source3/lib/wbclient.c
+++ b/source3/lib/wbclient.c
@@ -449,8 +449,8 @@ static void wb_open_pipe_connect_nonpriv_done(struct tevent_req *subreq)
 	ZERO_STRUCT(state->wb_req);
 	state->wb_req.cmd = WINBINDD_INTERFACE_VERSION;
 
-	subreq = wb_int_trans_send(state, state->ev, NULL, state->wb_ctx->fd,
-				   &state->wb_req);
+	subreq = wb_int_trans_send(state, state->ev, state->wb_ctx->queue,
+				   state->wb_ctx->fd, &state->wb_req);
 	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
@@ -480,8 +480,8 @@ static void wb_open_pipe_ping_done(struct tevent_req *subreq)
 
 	state->wb_req.cmd = WINBINDD_PRIV_PIPE_DIR;
 
-	subreq = wb_int_trans_send(state, state->ev, NULL, state->wb_ctx->fd,
-				   &state->wb_req);
+	subreq = wb_int_trans_send(state, state->ev, state->wb_ctx->queue,
+				   state->wb_ctx->fd, &state->wb_req);
 	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
@@ -673,8 +673,8 @@ static void wb_trans_connect_done(struct tevent_req *subreq)
 		return;
 	}
 
-	subreq = wb_int_trans_send(state, state->ev, NULL, state->wb_ctx->fd,
-				   state->wb_req);
+	subreq = wb_int_trans_send(state, state->ev, state->wb_ctx->queue,
+				   state->wb_ctx->fd, state->wb_req);
 	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
diff --git a/source3/libnet/libnet_samsync.c b/source3/libnet/libnet_samsync.c
index 73d4439743..0c00b8518a 100644
--- a/source3/libnet/libnet_samsync.c
+++ b/source3/libnet/libnet_samsync.c
@@ -422,9 +422,6 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx,
 
 		TALLOC_FREE(delta_enum_array);
 
-		/* Increment sync_context */
-		sync_context += 1;
-
 	} while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
 
  out:
diff --git a/source3/libsmb/async_smb.c b/source3/libsmb/async_smb.c
index 066ac7bdb8..86fd5c8bef 100644
--- a/source3/libsmb/async_smb.c
+++ b/source3/libsmb/async_smb.c
@@ -550,7 +550,7 @@ void cli_chain_uncork(struct cli_state *cli)
 		_smb_setlen_large(((char *)req->outbuf), smblen);
 	}
 
-	cli_calculate_sign_mac(cli, (char *)req->outbuf);
+	cli_calculate_sign_mac(cli, (char *)req->outbuf, &req->seqnum);
 
 	if (cli_encryption_on(cli)) {
 		NTSTATUS status;
@@ -811,9 +811,16 @@ NTSTATUS cli_pull_reply(struct async_req *req,
  */
 
 
-static NTSTATUS validate_smb_crypto(struct cli_state *cli, char *pdu)
+static NTSTATUS validate_smb_crypto(struct cli_state *cli, char *pdu,
+				    struct cli_request **_req,
+				    uint16_t *_mid)
 {
 	NTSTATUS status;
+	struct cli_request *req = NULL;
+	uint16_t mid;
+
+	*_req = NULL;
+	*_mid = 0;
 
 	if ((IVAL(pdu, 4) != 0x424d53ff) /* 0xFF"SMB" */
 	    && (SVAL(pdu, 4) != 0x45ff)) /* 0xFF"E" */ {
@@ -846,11 +853,27 @@ static NTSTATUS validate_smb_crypto(struct cli_state *cli, char *pdu)
 		}
 	}
 
-	if (!cli_check_sign_mac(cli, pdu)) {
+	mid = SVAL(pdu, smb_mid);
+
+	for (req = cli->outstanding_requests; req; req = req->next) {
+		if (req->mid == mid) {
+			break;
+		}
+	}
+
+	if (!req) {
+		/* oplock breaks are not signed */
+		goto done;
+	}
+
+	if (!cli_check_sign_mac(cli, pdu, req->seqnum+1)) {
 		DEBUG(10, ("cli_check_sign_mac failed\n"));
 		return NT_STATUS_ACCESS_DENIED;
 	}
 
+done:
+	*_req = req;
+	*_mid = mid;
 	return NT_STATUS_OK;
 }
 
@@ -863,7 +886,7 @@ static void handle_incoming_pdu(struct cli_state *cli)
 {
 	struct cli_request *req, *next;
 	uint16_t mid;
-	size_t raw_pdu_len, buf_len, pdu_len, rest_len;
+	size_t raw_pdu_len, buf_len, rest_len;
 	char *pdu;
 	int i;
 	NTSTATUS status;
@@ -923,23 +946,13 @@ static void handle_incoming_pdu(struct cli_state *cli)
 		}
 	}
 
-	status = validate_smb_crypto(cli, pdu);
+	status = validate_smb_crypto(cli, pdu, &req, &mid);
 	if (!NT_STATUS_IS_OK(status)) {
 		goto invalidate_requests;
 	}
 
-	mid = SVAL(pdu, smb_mid);
-
 	DEBUG(10, ("handle_incoming_pdu: got mid %d\n", mid));
 
-	for (req = cli->outstanding_requests; req; req = req->next) {
-		if (req->mid == mid) {
-			break;
-		}
-	}
-
-	pdu_len = smb_len(pdu) + 4;
-
 	if (req == NULL) {
 		DEBUG(3, ("Request for mid %d not found, dumping PDU\n", mid));
 
diff --git a/source3/libsmb/cliconnect.c b/source3/libsmb/cliconnect.c
index ebb01c44a6..aa1ca595a7 100644
--- a/source3/libsmb/cliconnect.c
+++ b/source3/libsmb/cliconnect.c
@@ -505,11 +505,7 @@ static NTSTATUS cli_session_setup_nt1(struct cli_state *cli, const char *user,
 	ok = cli_simple_set_signing(cli, session_key, nt_response);
 #endif
 	if (ok) {
-		/* 'resign' the last message, so we get the right sequence numbers
-		   for checking the first reply from the server */
-		cli_calculate_sign_mac(cli, cli->outbuf);
-
-		if (!cli_check_sign_mac(cli, cli->inbuf)) {
+		if (!cli_check_sign_mac(cli, cli->inbuf, 1)) {
 			result = NT_STATUS_ACCESS_DENIED;
 			goto end;
 		}
@@ -747,11 +743,7 @@ static ADS_STATUS cli_session_setup_kerberos(struct cli_state *cli, const char *
 	if (cli_simple_set_signing(
 		    cli, session_key_krb5, data_blob_null)) {
 
-		/* 'resign' the last message, so we get the right sequence numbers
-		   for checking the first reply from the server */
-		cli_calculate_sign_mac(cli, cli->outbuf);
-
-		if (!cli_check_sign_mac(cli, cli->inbuf)) {
+		if (!cli_check_sign_mac(cli, cli->inbuf, 1)) {
 			nt_status = NT_STATUS_ACCESS_DENIED;
 			goto nt_error;
 		}
@@ -873,11 +865,7 @@ static NTSTATUS cli_session_setup_ntlmssp(struct cli_state *cli, const char *use
 		if (cli_simple_set_signing(
 			    cli, ntlmssp_state->session_key, data_blob_null)) {
 
-			/* 'resign' the last message, so we get the right sequence numbers
-			   for checking the first reply from the server */
-			cli_calculate_sign_mac(cli, cli->outbuf);
-
-			if (!cli_check_sign_mac(cli, cli->inbuf)) {
+			if (!cli_check_sign_mac(cli, cli->inbuf, 1)) {
 				nt_status = NT_STATUS_ACCESS_DENIED;
 			}
 		}
@@ -1540,13 +1528,16 @@ NTSTATUS cli_negprot_recv(struct async_req *req)
 
 	cli->protocol = prots[protnum].prot;
 
-	if ((cli->protocol < PROTOCOL_NT1) && cli->sign_info.mandatory_signing) {
+	if ((cli->protocol < PROTOCOL_NT1) &&
+	    client_is_signing_mandatory(cli)) {
 		DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
 		return NT_STATUS_ACCESS_DENIED;
 	}
 
 	if (cli->protocol >= PROTOCOL_NT1) {    
 		struct timespec ts;
+		bool negotiated_smb_signing = false;
+
 		/* NT protocol */
 		cli->sec_mode = CVAL(vwv + 1, 0);
 		cli->max_mux = SVAL(vwv + 1, 1);
@@ -1579,22 +1570,24 @@ NTSTATUS cli_negprot_recv(struct async_req *req)
 
 		if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_REQUIRED) {
 			/* Fail if server says signing is mandatory and we don't want to support it. */
-			if (!cli->sign_info.allow_smb_signing) {
+			if (!client_is_signing_allowed(cli)) {
 				DEBUG(0,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
 				return NT_STATUS_ACCESS_DENIED;
 			}
-			cli->sign_info.negotiated_smb_signing = True;
-			cli->sign_info.mandatory_signing = True;
-		} else if (cli->sign_info.mandatory_signing && cli->sign_info.allow_smb_signing) {
+			negotiated_smb_signing = true;
+		} else if (client_is_signing_mandatory(cli) && client_is_signing_allowed(cli)) {
 			/* Fail if client says signing is mandatory and the server doesn't support it. */
 			if (!(cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED)) {
 				DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
 				return NT_STATUS_ACCESS_DENIED;
 			}
-			cli->sign_info.negotiated_smb_signing = True;
-			cli->sign_info.mandatory_signing = True;
+			negotiated_smb_signing = true;
 		} else if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED) {
-			cli->sign_info.negotiated_smb_signing = True;
+			negotiated_smb_signing = true;
+		}
+
+		if (negotiated_smb_signing) {
+			cli_set_signing_negotiated(cli);
 		}
 
 		if (cli->capabilities & (CAP_LARGE_READX|CAP_LARGE_WRITEX)) {
@@ -1841,10 +1834,9 @@ static NTSTATUS open_smb_socket(const struct sockaddr_storage *pss,
 	tevent_req_set_callback(r445, smb_sock_connected, fd445);
 	tevent_req_set_callback(r139, smb_sock_connected, fd139);
 
-	while ((fd139->fd == -1)
-	       && tevent_req_is_in_progress(r139)
-	       && (fd445->fd == -1)
-	       && tevent_req_is_in_progress(r445)) {
+	while ((fd445->fd == -1) && (fd139->fd == -1)
+	       && (tevent_req_is_in_progress(r139)
+		   || tevent_req_is_in_progress(r445))) {
 		event_loop_once(ev);
 	}
 
diff --git a/source3/libsmb/clientgen.c b/source3/libsmb/clientgen.c
index c1ba4e5c4f..6186387076 100644
--- a/source3/libsmb/clientgen.c
+++ b/source3/libsmb/clientgen.c
@@ -135,6 +135,79 @@ static ssize_t client_receive_smb(struct cli_state *cli, size_t maxlen)
 	return len;
 }
 
+static bool cli_state_set_seqnum(struct cli_state *cli, uint16_t mid, uint32_t seqnum)
+{
+	struct cli_state_seqnum *c;
+
+	for (c = cli->seqnum; c; c = c->next) {
+		if (c->mid == mid) {
+			c->seqnum = seqnum;
+			return true;
+		}
+	}
+
+	c = talloc_zero(cli, struct cli_state_seqnum);
+	if (!c) {
+		return false;
+	}
+
+	c->mid = mid;
+	c->seqnum = seqnum;
+	c->persistent = false;
+	DLIST_ADD_END(cli->seqnum, c, struct cli_state_seqnum *);
+
+	return true;
+}
+
+bool cli_state_seqnum_persistent(struct cli_state *cli,
+				 uint16_t mid)
+{
+	struct cli_state_seqnum *c;
+
+	for (c = cli->seqnum; c; c = c->next) {
+		if (c->mid == mid) {
+			c->persistent = true;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+bool cli_state_seqnum_remove(struct cli_state *cli,
+			     uint16_t mid)
+{
+	struct cli_state_seqnum *c;
+
+	for (c = cli->seqnum; c; c = c->next) {
+		if (c->mid == mid) {
+			DLIST_REMOVE(cli->seqnum, c);
+			TALLOC_FREE(c);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+static uint32_t cli_state_get_seqnum(struct cli_state *cli, uint16_t mid)
+{
+	struct cli_state_seqnum *c;
+
+	for (c = cli->seqnum; c; c = c->next) {
+		if (c->mid == mid) {
+			uint32_t seqnum = c->seqnum;
+			if (!c->persistent) {
+				DLIST_REMOVE(cli->seqnum, c);
+				TALLOC_FREE(c);
+			}
+			return seqnum;
+		}
+	}
+
+	return 0;
+}
+
 /****************************************************************************
  Recv an smb.
 ****************************************************************************/
@@ -142,6 +215,8 @@ static ssize_t client_receive_smb(struct cli_state *cli, size_t maxlen)
 bool cli_receive_smb(struct cli_state *cli)
 {
 	ssize_t len;
+	uint16_t mid;
+	uint32_t seqnum;
 
 	/* fd == -1 causes segfaults -- Tom (tom@ninja.nl) */
 	if (cli->fd == -1)
@@ -177,7 +252,10 @@ bool cli_receive_smb(struct cli_state *cli)
 		return false;
 	}
 
-	if (!cli_check_sign_mac(cli, cli->inbuf)) {
+	mid = SVAL(cli->inbuf,smb_mid);
+	seqnum = cli_state_get_seqnum(cli, mid);
+
+	if (!cli_check_sign_mac(cli, cli->inbuf, seqnum+1)) {
 		/*
 		 * If we get a signature failure in sessionsetup, then
 		 * the server sometimes just reflects the sent signature
@@ -264,12 +342,20 @@ bool cli_send_smb(struct cli_state *cli)
 	ssize_t ret;
 	char *buf_out = cli->outbuf;
 	bool enc_on = cli_encryption_on(cli);
+	uint32_t seqnum;
 
 	/* fd == -1 causes segfaults -- Tom (tom@ninja.nl) */
 	if (cli->fd == -1)
 		return false;
 
-	cli_calculate_sign_mac(cli, cli->outbuf);
+	cli_calculate_sign_mac(cli, cli->outbuf, &seqnum);
+
+	if (!cli_state_set_seqnum(cli, cli->mid, seqnum)) {
+		DEBUG(0,("Failed to store mid[%u]/seqnum[%u]\n",
+			(unsigned int)cli->mid,
+			(unsigned int)seqnum));
+		return false;
+	}
 
 	if (enc_on) {
 		NTSTATUS status = cli_encrypt_message(cli, cli->outbuf,
@@ -506,6 +592,7 @@ struct cli_state *cli_initialise_ex(int signing_state)
 	cli->bufsize = CLI_BUFFER_SIZE+4;
 	cli->max_xmit = cli->bufsize;
 	cli->outbuf = (char *)SMB_MALLOC(cli->bufsize+SAFETY_MARGIN);
+	cli->seqnum = 0;
 	cli->inbuf = (char *)SMB_MALLOC(cli->bufsize+SAFETY_MARGIN);
 	cli->oplock_handler = cli_oplock_ack;
 	cli->case_sensitive = false;
@@ -556,9 +643,12 @@ struct cli_state *cli_initialise_ex(int signing_state)
 #endif
 
 	/* initialise signing */
-	cli->sign_info.allow_smb_signing = allow_smb_signing;
-	cli->sign_info.mandatory_signing = mandatory_signing;
-	cli_null_set_signing(cli);
+	cli->signing_state = smb_signing_init(cli,
+					      allow_smb_signing,
+					      mandatory_signing);
+	if (!cli->signing_state) {
+		goto error;
+	}
 
 	cli->initialised = 1;
 
@@ -641,7 +731,6 @@ void cli_shutdown(struct cli_state *cli)
 	SAFE_FREE(cli->outbuf);
 	SAFE_FREE(cli->inbuf);
 
-	cli_free_signing_context(cli);
 	data_blob_free(&cli->secblob);
 	data_blob_free(&cli->user_session_key);
 
@@ -740,7 +829,6 @@ static void cli_echo_recv_helper(struct async_req *req)
 	cli_req->data.echo.num_echos -= 1;
 
 	if (cli_req->data.echo.num_echos == 0) {
-		client_set_trans_sign_state_off(cli_req->cli, cli_req->mid);
 		async_req_done(req);
 		return;
 	}
@@ -782,8 +870,6 @@ struct async_req *cli_echo_send(TALLOC_CTX *mem_ctx, struct event_context *ev,
 	}
 	req = talloc_get_type_abort(result->private_data, struct cli_request);
 
-	client_set_trans_sign_state_on(cli, req->mid);
-
 	req->data.echo.num_echos = num_echos;
 	req->data.echo.data.data = talloc_move(req, &data_copy);
 	req->data.echo.data.length = data.length;
diff --git a/source3/libsmb/clisigning.c b/source3/libsmb/clisigning.c
new file mode 100644
index 0000000000..0d0e926e6c
--- /dev/null
+++ b/source3/libsmb/clisigning.c
@@ -0,0 +1,87 @@
+/*
+   Unix SMB/CIFS implementation.
+   SMB Signing Code
+   Copyright (C) Jeremy Allison 2003.
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
+   Copyright (C) Stefan Metzmacher 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+bool cli_simple_set_signing(struct cli_state *cli,
+			    const DATA_BLOB user_session_key,
+			    const DATA_BLOB response)
+{
+	bool ok;
+
+	ok = smb_signing_activate(cli->signing_state,
+				  user_session_key,
+				  response);
+	if (!ok) {
+		return false;
+	}
+
+	cli->readbraw_supported = false;
+	cli->writebraw_supported = false;
+
+	return true;
+}
+
+bool cli_temp_set_signing(struct cli_state *cli)
+{
+	return smb_signing_set_bsrspyl(cli->signing_state);
+}
+
+void cli_calculate_sign_mac(struct cli_state *cli, char *buf, uint32_t *seqnum)
+{
+	*seqnum = smb_signing_next_seqnum(cli->signing_state, false);
+	smb_signing_sign_pdu(cli->signing_state, (uint8_t *)buf, *seqnum);
+}
+
+bool cli_check_sign_mac(struct cli_state *cli, const char *buf, uint32_t seqnum)
+{
+	bool ok;
+
+	ok = smb_signing_check_pdu(cli->signing_state,
+				   (const uint8_t *)buf,
+				   seqnum);
+
+	if (!ok) {
+		return false;
+	}
+
+	return true;
+}
+
+void cli_set_signing_negotiated(struct cli_state *cli)
+{
+	smb_signing_set_negotiated(cli->signing_state);
+}
+
+bool client_is_signing_on(struct cli_state *cli)
+{
+	return smb_signing_is_active(cli->signing_state);
+}
+
+bool client_is_signing_allowed(struct cli_state *cli)
+{
+	return smb_signing_is_allowed(cli->signing_state);
+}
+
+bool client_is_signing_mandatory(struct cli_state *cli)
+{
+	return smb_signing_is_mandatory(cli->signing_state);
+}
diff --git a/source3/libsmb/clitrans.c b/source3/libsmb/clitrans.c
index 0266c0307e..c566972b21 100644
--- a/source3/libsmb/clitrans.c
+++ b/source3/libsmb/clitrans.c
@@ -94,14 +94,12 @@ bool cli_send_trans(struct cli_state *cli, int trans,
 		return False;
 	}
 
-	/* Note we're in a trans state. Save the sequence
-	 * numbers for replies. */
-	client_set_trans_sign_state_on(cli, mid);
+	cli_state_seqnum_persistent(cli, mid);
 
 	if (this_ldata < ldata || this_lparam < lparam) {
 		/* receive interim response */
 		if (!cli_receive_smb(cli) || cli_is_error(cli)) {
-			client_set_trans_sign_state_off(cli, mid);
+			cli_state_seqnum_remove(cli, mid);
 			return(False);
 		}
 
@@ -137,12 +135,11 @@ bool cli_send_trans(struct cli_state *cli, int trans,
 
 			show_msg(cli->outbuf);
 
-			client_set_trans_sign_state_off(cli, mid);
 			cli->mid = mid;
 			if (!cli_send_smb(cli)) {
+				cli_state_seqnum_remove(cli, mid);
 				return False;
 			}
-			client_set_trans_sign_state_on(cli, mid);
 
 			tot_data += this_ldata;
 			tot_param += this_lparam;
@@ -165,10 +162,14 @@ bool cli_receive_trans(struct cli_state *cli,int trans,
 	unsigned int this_data,this_param;
 	NTSTATUS status;
 	bool ret = False;
+	uint16_t mid;
 
 	*data_len = *param_len = 0;
 
+	mid = SVAL(cli->inbuf,smb_mid);
+
 	if (!cli_receive_smb(cli)) {
+		cli_state_seqnum_remove(cli, mid);
 		return False;
 	}
 
@@ -179,6 +180,7 @@ bool cli_receive_trans(struct cli_state *cli,int trans,
 		DEBUG(0,("Expected %s response, got command 0x%02x\n",
 			 trans==SMBtrans?"SMBtrans":"SMBtrans2",
 			 CVAL(cli->inbuf,smb_com)));
+		cli_state_seqnum_remove(cli, mid);
 		return False;
 	}
 
@@ -331,6 +333,8 @@ bool cli_receive_trans(struct cli_state *cli,int trans,
 
   out:
 
+	cli_state_seqnum_remove(cli, mid);
+
 	if (ret) {
 		/* Ensure the last 2 bytes of param and data are 2 null
 		 * bytes. These are malloc'ed, but not included in any
@@ -344,7 +348,6 @@ bool cli_receive_trans(struct cli_state *cli,int trans,
 		}
 	}
 
-	client_set_trans_sign_state_off(cli, SVAL(cli->inbuf,smb_mid));
 	return ret;
 }
 
@@ -412,14 +415,12 @@ bool cli_send_nt_trans(struct cli_state *cli,
 		return False;
 	}
 
-	/* Note we're in a trans state. Save the sequence
-	 * numbers for replies. */
-	client_set_trans_sign_state_on(cli, mid);
+	cli_state_seqnum_persistent(cli, mid);
 
 	if (this_ldata < ldata || this_lparam < lparam) {
 		/* receive interim response */
 		if (!cli_receive_smb(cli) || cli_is_error(cli)) {
-			client_set_trans_sign_state_off(cli, mid);
+			cli_state_seqnum_remove(cli, mid);
 			return(False);
 		}
 
@@ -454,12 +455,11 @@ bool cli_send_nt_trans(struct cli_state *cli,
 
 			show_msg(cli->outbuf);
 
-			client_set_trans_sign_state_off(cli, mid);
 			cli->mid = mid;
 			if (!cli_send_smb(cli)) {
+				cli_state_seqnum_remove(cli, mid);
 				return False;
 			}
-			client_set_trans_sign_state_on(cli, mid);
 
 			tot_data += this_ldata;
 			tot_param += this_lparam;
@@ -483,10 +483,14 @@ bool cli_receive_nt_trans(struct cli_state *cli,
 	uint8 eclass;
 	uint32 ecode;
 	bool ret = False;
+	uint16_t mid;
 
 	*data_len = *param_len = 0;
 
+	mid = SVAL(cli->inbuf,smb_mid);
+
 	if (!cli_receive_smb(cli)) {
+		cli_state_seqnum_remove(cli, mid);
 		return False;
 	}
 
@@ -496,6 +500,7 @@ bool cli_receive_nt_trans(struct cli_state *cli,
 	if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
 		DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
 			 CVAL(cli->inbuf,smb_com)));
+		cli_state_seqnum_remove(cli, mid);
 		return(False);
 	}
 
@@ -669,6 +674,8 @@ bool cli_receive_nt_trans(struct cli_state *cli,
 
   out:
 
+	cli_state_seqnum_remove(cli, mid);
+
 	if (ret) {
 		/* Ensure the last 2 bytes of param and data are 2 null
 		 * bytes. These are malloc'ed, but not included in any
@@ -682,7 +689,6 @@ bool cli_receive_nt_trans(struct cli_state *cli,
 		}
 	}
 
-	client_set_trans_sign_state_off(cli, SVAL(cli->inbuf,smb_mid));
 	return ret;
 }
 
@@ -696,6 +702,7 @@ struct cli_trans_state {
 	struct event_context *ev;
 	uint8_t cmd;
 	uint16_t mid;
+	uint32_t seqnum;
 	const char *pipe_name;
 	uint16_t fid;
 	uint16_t function;
@@ -919,6 +926,7 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx,
 		cli_req = talloc_get_type_abort(result->private_data,
 						struct cli_request);
 		state->mid = cli_req->mid;
+		state->seqnum = cli_req->seqnum;
 	} else {
 		uint16_t num_bytes = talloc_get_size(bytes);
 		/*
@@ -939,12 +947,10 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx,
 		cli_req->recv_helper.fn = cli_trans_recv_helper;
 		cli_req->recv_helper.priv = state;
 		cli_req->mid = state->mid;
-		client_set_trans_sign_state_off(state->cli, state->mid);
 		cli_chain_uncork(state->cli);
+		state->seqnum = cli_req->seqnum;
 	}
 
-	client_set_trans_sign_state_on(state->cli, state->mid);
-
  fail:
 	TALLOC_FREE(frame);
 	return result;
@@ -953,6 +959,8 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx,
 static void cli_trans_ship_rest(struct async_req *req,
 				struct cli_trans_state *state)
 {
+	struct cli_request *cli_req;
+
 	state->secondary_request_ctx = talloc_new(state);
 	if (state->secondary_request_ctx == NULL) {
 		async_req_nterror(req, NT_STATUS_NO_MEMORY);
@@ -961,14 +969,19 @@ static void cli_trans_ship_rest(struct async_req *req,
 
 	while ((state->param_sent < state->num_param)
 	       || (state->data_sent < state->num_data)) {
-		struct async_req *cli_req;
+		struct async_req *subreq;
 
-		cli_req = cli_ship_trans(state->secondary_request_ctx, state);
-		if (cli_req == NULL) {
+		subreq = cli_ship_trans(state->secondary_request_ctx, state);
+		if (subreq == NULL) {
 			async_req_nterror(req, NT_STATUS_NO_MEMORY);
 			return;
 		}
 	}
+
+	cli_req = talloc_get_type_abort(req->private_data,
+					struct cli_request);
+
+	cli_req->seqnum = state->seqnum;
 }
 
 static NTSTATUS cli_pull_trans(struct async_req *req,
@@ -1174,7 +1187,6 @@ static void cli_trans_recv_helper(struct async_req *req)
 
 	if ((state->rparam.total == state->rparam.received)
 	    && (state->rdata.total == state->rdata.received)) {
-		client_set_trans_sign_state_off(state->cli, state->mid);
 		async_req_done(req);
 	}
 }
diff --git a/source3/libsmb/dsgetdcname.c b/source3/libsmb/dsgetdcname.c
index 3491544175..1064a63d97 100644
--- a/source3/libsmb/dsgetdcname.c
+++ b/source3/libsmb/dsgetdcname.c
@@ -311,7 +311,7 @@ static uint32_t get_cldap_reply_server_flags(struct netlogon_samlogon_response *
 /****************************************************************
 ****************************************************************/
 
-#define RETURN_ON_FALSE(x) if (!x) return false;
+#define RETURN_ON_FALSE(x) if (!(x)) return false;
 
 static bool check_cldap_reply_required_flags(uint32_t ret_flags,
 					     uint32_t req_flags)
diff --git a/source3/libsmb/smb_seal.c b/source3/libsmb/smb_seal.c
index 795c8bc14c..2f7305c5b6 100644
--- a/source3/libsmb/smb_seal.c
+++ b/source3/libsmb/smb_seal.c
@@ -136,7 +136,7 @@ NTSTATUS common_ntlm_encrypt_buffer(NTLMSSP_STATE *ntlmssp_state,
 
 	smb_set_enclen(buf_out, smb_len(buf) + NTLMSSP_SIG_SIZE, enc_ctx_num);
 
-	sig = data_blob(NULL, NTLMSSP_SIG_SIZE);
+	ZERO_STRUCT(sig);
 
 	status = ntlmssp_seal_packet(ntlmssp_state,
 		(unsigned char *)buf_out + 8 + NTLMSSP_SIG_SIZE, /* 4 byte len + 0xFF 'S' <enc> <ctx> */
@@ -153,6 +153,7 @@ NTSTATUS common_ntlm_encrypt_buffer(NTLMSSP_STATE *ntlmssp_state,
 
 	/* First 16 data bytes are signature for SSPI compatibility. */
 	memcpy(buf_out + 8, sig.data, NTLMSSP_SIG_SIZE);
+	data_blob_free(&sig);
 	*ppbuf_out = buf_out;
 	return NT_STATUS_OK;
 }
diff --git a/source3/libsmb/smb_signing.c b/source3/libsmb/smb_signing.c
index a3ed0e7572..32d2883965 100644
--- a/source3/libsmb/smb_signing.c
+++ b/source3/libsmb/smb_signing.c
@@ -1,8 +1,9 @@
-/* 
+/*
    Unix SMB/CIFS implementation.
    SMB Signing Code
    Copyright (C) Jeremy Allison 2003.
    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
+   Copyright (C) Stefan Metzmacher 2009
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -20,260 +21,89 @@
 
 #include "includes.h"
 
-/* Lookup a packet's MID (multiplex id) and figure out it's sequence number */
-struct outstanding_packet_lookup {
-	struct outstanding_packet_lookup *prev, *next;
-	uint16 mid;
-	uint32 reply_seq_num;
-	bool can_delete; /* Set to False in trans state. */
-};
+/* Used by the SMB signing functions. */
 
-struct smb_basic_signing_context {
-	DATA_BLOB mac_key;
-	uint32 send_seq_num;
-	struct outstanding_packet_lookup *outstanding_packet_list;
-};
-
-static bool store_sequence_for_reply(struct outstanding_packet_lookup **list, 
-				     uint16 mid, uint32 reply_seq_num)
-{
-	struct outstanding_packet_lookup *t;
+struct smb_signing_state {
+	/* is signing localy allowed */
+	bool allowed;
 
-	/* Ensure we only add a mid once. */
-	for (t = *list; t; t = t->next) {
-		if (t->mid == mid) {
-			return False;
-		}
-	}
+	/* is signing localy mandatory */
+	bool mandatory;
 
-	t = SMB_XMALLOC_P(struct outstanding_packet_lookup);
-	ZERO_STRUCTP(t);
+	/* is signing negotiated by the peer */
+	bool negotiated;
 
-	t->mid = mid;
-	t->reply_seq_num = reply_seq_num;
-	t->can_delete = True;
+	/* send BSRSPYL signatures */
+	bool bsrspyl;
 
-	/*
-	 * Add to the *start* of the list not the end of the list.
-	 * This ensures that the *last* send sequence with this mid
-	 * is returned by preference.
-	 * This can happen if the mid wraps and one of the early
-	 * mid numbers didn't get a reply and is still lurking on
-	 * the list. JRA. Found by Fran Fabrizio <fran@cis.uab.edu>.
-	 */
+	bool active; /* Have I ever seen a validly signed packet? */
 
-	DLIST_ADD(*list, t);
-	DEBUG(10,("store_sequence_for_reply: stored seq = %u mid = %u\n",
-			(unsigned int)reply_seq_num, (unsigned int)mid ));
-	return True;
-}
+	/* mac_key.length > 0 means signing is started */
+	DATA_BLOB mac_key;
 
-static bool get_sequence_for_reply(struct outstanding_packet_lookup **list,
-				   uint16 mid, uint32 *reply_seq_num)
-{
-	struct outstanding_packet_lookup *t;
-
-	for (t = *list; t; t = t->next) {
-		if (t->mid == mid) {
-			*reply_seq_num = t->reply_seq_num;
-			DEBUG(10,("get_sequence_for_reply: found seq = %u mid = %u\n",
-				(unsigned int)t->reply_seq_num, (unsigned int)t->mid ));
-			if (t->can_delete) {
-				DLIST_REMOVE(*list, t);
-				SAFE_FREE(t);
-			}
-			return True;
-		}
-	}
-	return False;
-}
+	/* the next expected seqnum */
+	uint32_t seqnum;
+};
 
-static bool set_sequence_can_delete_flag(struct outstanding_packet_lookup **list, uint16 mid, bool can_delete_entry)
+static void smb_signing_reset_info(struct smb_signing_state *si)
 {
-	struct outstanding_packet_lookup *t;
-
-	for (t = *list; t; t = t->next) {
-		if (t->mid == mid) {
-			t->can_delete = can_delete_entry;
-			return True;
-		}
-	}
-	return False;
+	si->active = false;
+	si->bsrspyl = false;
+	data_blob_free(&si->mac_key);
+	si->seqnum = 0;
 }
 
-/***********************************************************
- SMB signing - Common code before we set a new signing implementation
-************************************************************/
-
-static bool cli_set_smb_signing_common(struct cli_state *cli) 
+struct smb_signing_state *smb_signing_init(TALLOC_CTX *mem_ctx,
+					   bool allowed,
+					   bool mandatory)
 {
-	if (!cli->sign_info.allow_smb_signing) {
-		return False;
-	}
+	struct smb_signing_state *si;
 
-	if (!cli->sign_info.negotiated_smb_signing 
-	    && !cli->sign_info.mandatory_signing) {
-		return False;
+	si = talloc_zero(mem_ctx, struct smb_signing_state);
+	if (si == NULL) {
+		return NULL;
 	}
 
-	if (cli->sign_info.doing_signing) {
-		return False;
+	if (mandatory) {
+		allowed = true;
 	}
 
-	if (cli->sign_info.free_signing_context)
-		cli->sign_info.free_signing_context(&cli->sign_info);
-
-	/* These calls are INCOMPATIBLE with SMB signing */
-	cli->readbraw_supported = False;
-	cli->writebraw_supported = False;
-
-	return True;
-}
-
-/***********************************************************
- SMB signing - Common code for 'real' implementations
-************************************************************/
-
-static bool set_smb_signing_real_common(struct smb_sign_info *si)
-{
-	if (si->mandatory_signing) {
-		DEBUG(5, ("Mandatory SMB signing enabled!\n"));
-	}
-
-	si->doing_signing = True;
-	DEBUG(5, ("SMB signing enabled!\n"));
-
-	return True;
-}
-
-static void mark_packet_signed(char *outbuf)
-{
-	uint16 flags2;
-	flags2 = SVAL(outbuf,smb_flg2);
-	flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
-	SSVAL(outbuf,smb_flg2, flags2);
-}
-
-/***********************************************************
- SMB signing - NULL implementation - calculate a MAC to send.
-************************************************************/
-
-static void null_sign_outgoing_message(char *outbuf, struct smb_sign_info *si)
-{
-	/* we can't zero out the sig, as we might be trying to send a
-	   session request - which is NBT-level, not SMB level and doesn't
-	   have the field */
-	return;
-}
-
-/***********************************************************
- SMB signing - NULL implementation - check a MAC sent by server.
-************************************************************/
-
-static bool null_check_incoming_message(const char *inbuf,
-					struct smb_sign_info *si,
-					bool must_be_ok)
-{
-	return True;
-}
-
-/***********************************************************
- SMB signing - NULL implementation - free signing context
-************************************************************/
-
-static void null_free_signing_context(struct smb_sign_info *si)
-{
-	return;
-}
-
-/**
- SMB signing - NULL implementation - setup the MAC key.
-
- @note Used as an initialisation only - it will not correctly
-       shut down a real signing mechanism
-*/
-
-static bool null_set_signing(struct smb_sign_info *si)
-{
-	si->signing_context = NULL;
-
-	si->sign_outgoing_message = null_sign_outgoing_message;
-	si->check_incoming_message = null_check_incoming_message;
-	si->free_signing_context = null_free_signing_context;
-
-	return True;
-}
-
-/**
- * Free the signing context
- */
-
-static void free_signing_context(struct smb_sign_info *si)
-{
-	if (si->free_signing_context) {
-		si->free_signing_context(si);
-		si->signing_context = NULL;
-	}
+	si->allowed = allowed;
+	si->mandatory = mandatory;
 
-	null_set_signing(si);
+	return si;
 }
 
-
-static bool signing_good(const char *inbuf, struct smb_sign_info *si,
-			 bool good, uint32 seq, bool must_be_ok)
+static bool smb_signing_good(struct smb_signing_state *si,
+			     bool good, uint32_t seq)
 {
 	if (good) {
-
-		if (!si->doing_signing) {
-			si->doing_signing = True;
+		if (!si->active) {
+			si->active = true;
 		}
+		return true;
+	}
 
-		if (!si->seen_valid) {
-			si->seen_valid = True;
-		}
-
-	} else {
-		if (!si->mandatory_signing && !si->seen_valid) {
-
-			if (!must_be_ok) {
-				return True;
-			}
-			/* Non-mandatory signing - just turn off if this is the first bad packet.. */
-			DEBUG(5, ("srv_check_incoming_message: signing negotiated but not required and peer\n"
-				  "isn't sending correct signatures. Turning off.\n"));
-			si->negotiated_smb_signing = False;
-			si->allow_smb_signing = False;
-			si->doing_signing = False;
-			free_signing_context(si);
-			return True;
-		} else if (!must_be_ok) {
-			/* This packet is known to be unsigned */
-			return True;
-		} else {
-			/* Mandatory signing or bad packet after signing started - fail and disconnect. */
-			if (seq)
-				DEBUG(0, ("signing_good: BAD SIG: seq %u\n", (unsigned int)seq));
-			return False;
-		}
+	if (!si->mandatory && !si->active) {
+		/* Non-mandatory signing - just turn off if this is the first bad packet.. */
+		DEBUG(5, ("smb_signing_good: signing negotiated but not required and peer\n"
+			  "isn't sending correct signatures. Turning off.\n"));
+		smb_signing_reset_info(si);
+		return true;
 	}
-	return True;
-}	
 
-/***********************************************************
- SMB signing - Simple implementation - calculate a MAC on the packet
-************************************************************/
+	/* Mandatory signing or bad packet after signing started - fail and disconnect. */
+	DEBUG(0, ("smb_signing_good: BAD SIG: seq %u\n", (unsigned int)seq));
+	return false;
+}
 
-static void simple_packet_signature(struct smb_basic_signing_context *data, 
-				    const uchar *buf, uint32 seq_number, 
-				    unsigned char calc_md5_mac[16])
+static void smb_signing_md5(const DATA_BLOB *mac_key,
+			    const uint8_t *buf, uint32_t seq_number,
+			    uint8_t calc_md5_mac[16])
 {
 	const size_t offset_end_of_sig = (smb_ss_field + 8);
-	unsigned char sequence_buf[8];
+	uint8_t sequence_buf[8];
 	struct MD5Context md5_ctx;
-#if 0
-        /* JRA - apparently this is incorrect. */
-	unsigned char key_buf[16];
-#endif
 
 	/*
 	 * Firstly put the sequence number into the first 4 bytes.
@@ -282,7 +112,7 @@ static void simple_packet_signature(struct smb_basic_signing_context *data,
 	 * We do this here, to avoid modifying the packet.
 	 */
 
-	DEBUG(10,("simple_packet_signature: sequence number %u\n", seq_number ));
+	DEBUG(10,("smb_signing_md5: sequence number %u\n", seq_number ));
 
 	SIVAL(sequence_buf, 0, seq_number);
 	SIVAL(sequence_buf, 4, 0);
@@ -295,17 +125,7 @@ static void simple_packet_signature(struct smb_basic_signing_context *data,
 	MD5Init(&md5_ctx);
 
 	/* intialise with the key */
-	MD5Update(&md5_ctx, data->mac_key.data, data->mac_key.length); 
-#if 0
-	/* JRA - apparently this is incorrect. */
-	/* NB. When making and verifying SMB signatures, Windows apparently
-		zero-pads the key to 128 bits if it isn't long enough.
-		From Nalin Dahyabhai <nalin@redhat.com> */
-	if (data->mac_key.length < sizeof(key_buf)) {
-		memset(key_buf, 0, sizeof(key_buf));
-		MD5Update(&md5_ctx, key_buf, sizeof(key_buf) - data->mac_key.length);
-	}
-#endif
+	MD5Update(&md5_ctx, mac_key->data, mac_key->length);
 
 	/* copy in the first bit of the SMB header */
 	MD5Update(&md5_ctx, buf + 4, smb_ss_field - 4);
@@ -317,690 +137,234 @@ static void simple_packet_signature(struct smb_basic_signing_context *data,
 	MD5Update(&md5_ctx, buf + offset_end_of_sig, 
 		  smb_len(buf) - (offset_end_of_sig - 4));
 
-	/* calculate the MD5 sig */ 
+	/* calculate the MD5 sig */
 	MD5Final(calc_md5_mac, &md5_ctx);
 }
 
-
-/***********************************************************
- SMB signing - Client implementation - send the MAC.
-************************************************************/
-
-static void client_sign_outgoing_message(char *outbuf, struct smb_sign_info *si)
-{
-	unsigned char calc_md5_mac[16];
-	struct smb_basic_signing_context *data =
-		(struct smb_basic_signing_context *)si->signing_context;
-
-	if (!si->doing_signing)
-		return;
-
-	/* JRA Paranioa test - we should be able to get rid of this... */
-	if (smb_len(outbuf) < (smb_ss_field + 8 - 4)) {
-		DEBUG(1, ("client_sign_outgoing_message: Logic error. Can't check signature on short packet! smb_len = %u\n",
-					smb_len(outbuf) ));
-		abort();
-	}
-
-	/* mark the packet as signed - BEFORE we sign it...*/
-	mark_packet_signed(outbuf);
-
-	simple_packet_signature(data, (const unsigned char *)outbuf,
-				data->send_seq_num, calc_md5_mac);
-
-	DEBUG(10, ("client_sign_outgoing_message: sent SMB signature of\n"));
-	dump_data(10, calc_md5_mac, 8);
-
-	memcpy(&outbuf[smb_ss_field], calc_md5_mac, 8);
-
-/*	cli->outbuf[smb_ss_field+2]=0; 
-	Uncomment this to test if the remote server actually verifies signatures...*/
-
-	/* Instead of re-introducing the trans_info_conect we
-	   used to have here, we use the fact that during a
-	   SMBtrans/SMBtrans2/SMBnttrans send that the mid stays
-	   constant. This means that calling store_sequence_for_reply()
-	   will return False for all trans secondaries, as the mid is already
-	   on the stored sequence list. As the send_seqence_number must
-	   remain constant for all primary+secondary trans sends, we
-	   only increment the send sequence number when we successfully
-	   add a new entry to the outstanding sequence list. This means
-	   I can isolate the fix here rather than re-adding the trans
-	   signing on/off calls in libsmb/clitrans2.c JRA.
-	 */
-
-	if (store_sequence_for_reply(&data->outstanding_packet_list, SVAL(outbuf,smb_mid), data->send_seq_num + 1)) {
-		data->send_seq_num += 2;
-	}
-}
-
-/***********************************************************
- SMB signing - Client implementation - check a MAC sent by server.
-************************************************************/
-
-static bool client_check_incoming_message(const char *inbuf,
-					  struct smb_sign_info *si,
-					  bool must_be_ok)
+uint32_t smb_signing_next_seqnum(struct smb_signing_state *si, bool oneway)
 {
-	bool good;
-	uint32 reply_seq_number;
-	unsigned char calc_md5_mac[16];
-	unsigned char *server_sent_mac;
-
-	struct smb_basic_signing_context *data =
-		(struct smb_basic_signing_context *)si->signing_context;
+	uint32_t seqnum;
 
-	if (!si->doing_signing)
-		return True;
-
-	if (smb_len(inbuf) < (smb_ss_field + 8 - 4)) {
-		DEBUG(1, ("client_check_incoming_message: Can't check signature on short packet! smb_len = %u\n", smb_len(inbuf)));
-		return False;
+	if (si->mac_key.length == 0) {
+		return 0;
 	}
 
-	if (!get_sequence_for_reply(&data->outstanding_packet_list, SVAL(inbuf, smb_mid), &reply_seq_number)) {
-		DEBUG(1, ("client_check_incoming_message: received message "
-			"with mid %u with no matching send record.\n", (unsigned int)SVAL(inbuf, smb_mid) ));
-		return False;
-	}
-
-	simple_packet_signature(data, (const unsigned char *)inbuf,
-				reply_seq_number, calc_md5_mac);
-
-	server_sent_mac = (unsigned char *)&inbuf[smb_ss_field];
-	good = (memcmp(server_sent_mac, calc_md5_mac, 8) == 0);
-
-	if (!good) {
-		DEBUG(5, ("client_check_incoming_message: BAD SIG: wanted SMB signature of\n"));
-		dump_data(5, calc_md5_mac, 8);
-
-		DEBUG(5, ("client_check_incoming_message: BAD SIG: got SMB signature of\n"));
-		dump_data(5, server_sent_mac, 8);
-#if 1 /* JRATEST */
-		{
-			int i;
-			for (i = -5; i < 5; i++) {
-				simple_packet_signature(data, (const unsigned char *)inbuf, reply_seq_number+i, calc_md5_mac);
-				if (memcmp(server_sent_mac, calc_md5_mac, 8) == 0) {
-					DEBUG(0,("client_check_incoming_message: out of seq. seq num %u matches. \
-We were expecting seq %u\n", reply_seq_number+i, reply_seq_number ));
-					break;
-				}
-			}
-		}
-#endif /* JRATEST */
-
+	seqnum = si->seqnum;
+	if (oneway) {
+		si->seqnum += 1;
 	} else {
-		DEBUG(10, ("client_check_incoming_message: seq %u: got good SMB signature of\n", (unsigned int)reply_seq_number));
-		dump_data(10, server_sent_mac, 8);
-	}
-	return signing_good(inbuf, si, good, reply_seq_number, must_be_ok);
-}
-
-/***********************************************************
- SMB signing - Simple implementation - free signing context
-************************************************************/
-
-static void simple_free_signing_context(struct smb_sign_info *si)
-{
-	struct smb_basic_signing_context *data =
-		(struct smb_basic_signing_context *)si->signing_context;
-	struct outstanding_packet_lookup *list;
-	struct outstanding_packet_lookup *next;
-
-	for (list = data->outstanding_packet_list; list; list = next) {
-		next = list->next;
-		DLIST_REMOVE(data->outstanding_packet_list, list);
-		SAFE_FREE(list);
+		si->seqnum += 2;
 	}
 
-	data_blob_free(&data->mac_key);
-
-	SAFE_FREE(si->signing_context);
-
-	return;
+	return seqnum;
 }
 
-/***********************************************************
- SMB signing - Simple implementation - setup the MAC key.
-************************************************************/
-
-bool cli_simple_set_signing(struct cli_state *cli,
-			    const DATA_BLOB user_session_key,
-			    const DATA_BLOB response)
+void smb_signing_cancel_reply(struct smb_signing_state *si, bool oneway)
 {
-	struct smb_basic_signing_context *data;
-
-	if (!user_session_key.length)
-		return False;
-
-	if (!cli_set_smb_signing_common(cli)) {
-		return False;
-	}
-
-	if (!set_smb_signing_real_common(&cli->sign_info)) {
-		return False;
+	if (si->mac_key.length == 0) {
+		return;
 	}
 
-	data = SMB_XMALLOC_P(struct smb_basic_signing_context);
-	memset(data, '\0', sizeof(*data));
-
-	cli->sign_info.signing_context = data;
-
-	data->mac_key = data_blob(NULL, response.length + user_session_key.length);
-
-	memcpy(&data->mac_key.data[0], user_session_key.data, user_session_key.length);
-
-	DEBUG(10, ("cli_simple_set_signing: user_session_key\n"));
-	dump_data(10, user_session_key.data, user_session_key.length);
-
-	if (response.length) {
-		memcpy(&data->mac_key.data[user_session_key.length],response.data, response.length);
-		DEBUG(10, ("cli_simple_set_signing: response_data\n"));
-		dump_data(10, response.data, response.length);
+	if (oneway) {
+		si->seqnum -= 1;
 	} else {
-		DEBUG(10, ("cli_simple_set_signing: NULL response_data\n"));
+		si->seqnum -= 2;
 	}
-
-	dump_data_pw("MAC ssession key is:\n", data->mac_key.data, data->mac_key.length);
-
-	/* Initialise the sequence number */
-	data->send_seq_num = 0;
-
-	/* Initialise the list of outstanding packets */
-	data->outstanding_packet_list = NULL;
-
-	cli->sign_info.sign_outgoing_message = client_sign_outgoing_message;
-	cli->sign_info.check_incoming_message = client_check_incoming_message;
-	cli->sign_info.free_signing_context = simple_free_signing_context;
-
-	return True;
 }
 
-/***********************************************************
- SMB signing - TEMP implementation - calculate a MAC to send.
-************************************************************/
-
-static void temp_sign_outgoing_message(char *outbuf, struct smb_sign_info *si)
+void smb_signing_sign_pdu(struct smb_signing_state *si,
+			  uint8_t *outbuf, uint32_t seqnum)
 {
-	/* mark the packet as signed - BEFORE we sign it...*/
-	mark_packet_signed(outbuf);
-
-	/* I wonder what BSRSPYL stands for - but this is what MS 
-	   actually sends! */
-	memcpy(&outbuf[smb_ss_field], "BSRSPYL ", 8);
-	return;
-}
-
-/***********************************************************
- SMB signing - TEMP implementation - check a MAC sent by server.
-************************************************************/
+	uint8_t calc_md5_mac[16];
+	uint16_t flags2;
 
-static bool temp_check_incoming_message(const char *inbuf,
-					struct smb_sign_info *si, bool foo)
-{
-	return True;
-}
-
-/***********************************************************
- SMB signing - TEMP implementation - free signing context
-************************************************************/
-
-static void temp_free_signing_context(struct smb_sign_info *si)
-{
-	return;
-}
-
-/***********************************************************
- SMB signing - NULL implementation - setup the MAC key.
-************************************************************/
-
-bool cli_null_set_signing(struct cli_state *cli)
-{
-	return null_set_signing(&cli->sign_info);
-}
-
-/***********************************************************
- SMB signing - temp implementation - setup the MAC key.
-************************************************************/
-
-bool cli_temp_set_signing(struct cli_state *cli)
-{
-	if (!cli_set_smb_signing_common(cli)) {
-		return False;
-	}
-
-	cli->sign_info.signing_context = NULL;
-
-	cli->sign_info.sign_outgoing_message = temp_sign_outgoing_message;
-	cli->sign_info.check_incoming_message = temp_check_incoming_message;
-	cli->sign_info.free_signing_context = temp_free_signing_context;
-
-	return True;
-}
-
-void cli_free_signing_context(struct cli_state *cli)
-{
-	free_signing_context(&cli->sign_info);
-}
-
-/**
- * Sign a packet with the current mechanism
- */
-
-void cli_calculate_sign_mac(struct cli_state *cli, char *buf)
-{
-	cli->sign_info.sign_outgoing_message(buf, &cli->sign_info);
-}
-
-/**
- * Check a packet with the current mechanism
- * @return False if we had an established signing connection
- *         which had a bad checksum, True otherwise.
- */
-
-bool cli_check_sign_mac(struct cli_state *cli, char *buf)
-{
-	if (!cli->sign_info.check_incoming_message(buf, &cli->sign_info, True)) {
-		free_signing_context(&cli->sign_info);	
-		return False;
-	}
-	return True;
-}
-
-/***********************************************************
- Enter trans/trans2/nttrans state.
-************************************************************/
-
-bool client_set_trans_sign_state_on(struct cli_state *cli, uint16 mid)
-{
-	struct smb_sign_info *si = &cli->sign_info;
-	struct smb_basic_signing_context *data = (struct smb_basic_signing_context *)si->signing_context;
-
-	if (!si->doing_signing) {
-		return True;
-	}
-
-	if (!data) {
-		return False;
-	}
-
-	if (!set_sequence_can_delete_flag(&data->outstanding_packet_list, mid, False)) {
-		return False;
-	}
-
-	return True;
-}
-
-/***********************************************************
- Leave trans/trans2/nttrans state.
-************************************************************/
-
-bool client_set_trans_sign_state_off(struct cli_state *cli, uint16 mid)
-{
-	uint32 reply_seq_num;
-	struct smb_sign_info *si = &cli->sign_info;
-	struct smb_basic_signing_context *data = (struct smb_basic_signing_context *)si->signing_context;
-
-	if (!si->doing_signing) {
-		return True;
-	}
-
-	if (!data) {
-		return False;
-	}
-
-	if (!set_sequence_can_delete_flag(&data->outstanding_packet_list, mid, True)) {
-		return False;
-	}
-
-	/* Now delete the stored mid entry. */
-	if (!get_sequence_for_reply(&data->outstanding_packet_list, mid, &reply_seq_num)) {
-		return False;
-	}
-
-	return True;
-}
-
-/***********************************************************
- Is client signing on ?
-************************************************************/
-
-bool client_is_signing_on(struct cli_state *cli)
-{
-	struct smb_sign_info *si = &cli->sign_info;
-	return si->doing_signing;
-}
-
-/***********************************************************
- SMB signing - Server implementation - send the MAC.
-************************************************************/
-
-static void srv_sign_outgoing_message(char *outbuf, struct smb_sign_info *si)
-{
-	unsigned char calc_md5_mac[16];
-	struct smb_basic_signing_context *data =
-		(struct smb_basic_signing_context *)si->signing_context;
-	uint32 send_seq_number = data->send_seq_num-1;
-	uint16 mid;
-
-	if (!si->doing_signing) {
-		return;
+	if (si->mac_key.length == 0) {
+		if (!si->bsrspyl) {
+			return;
+		}
 	}
 
 	/* JRA Paranioa test - we should be able to get rid of this... */
 	if (smb_len(outbuf) < (smb_ss_field + 8 - 4)) {
-		DEBUG(1, ("srv_sign_outgoing_message: Logic error. Can't send signature on short packet! smb_len = %u\n",
-					smb_len(outbuf) ));
+		DEBUG(1,("smb_signing_sign_pdu: Logic error. "
+			 "Can't check signature on short packet! smb_len = %u\n",
+			 smb_len(outbuf)));
 		abort();
 	}
 
 	/* mark the packet as signed - BEFORE we sign it...*/
-	mark_packet_signed(outbuf);
-
-	mid = SVAL(outbuf, smb_mid);
-
-	/* See if this is a reply for a deferred packet. */
-	get_sequence_for_reply(&data->outstanding_packet_list, mid, &send_seq_number);
+	flags2 = SVAL(outbuf,smb_flg2);
+	flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
+	SSVAL(outbuf, smb_flg2, flags2);
 
-	simple_packet_signature(data, (const unsigned char *)outbuf, send_seq_number, calc_md5_mac);
+	if (si->bsrspyl) {
+		/* I wonder what BSRSPYL stands for - but this is what MS
+		   actually sends! */
+		memcpy(calc_md5_mac, "BSRSPYL ", 8);
+	} else {
+		smb_signing_md5(&si->mac_key, outbuf,
+				seqnum, calc_md5_mac);
+	}
 
-	DEBUG(10, ("srv_sign_outgoing_message: seq %u: sent SMB signature of\n", (unsigned int)send_seq_number));
+	DEBUG(10, ("smb_signing_sign_pdu: sent SMB signature of\n"));
 	dump_data(10, calc_md5_mac, 8);
 
 	memcpy(&outbuf[smb_ss_field], calc_md5_mac, 8);
 
-/*	cli->outbuf[smb_ss_field+2]=0; 
-	Uncomment this to test if the remote client actually verifies signatures...*/
+/*	outbuf[smb_ss_field+2]=0;
+	Uncomment this to test if the remote server actually verifies signatures...*/
 }
 
-/***********************************************************
- SMB signing - Server implementation - check a MAC sent by server.
-************************************************************/
-
-static bool srv_check_incoming_message(const char *inbuf,
-				       struct smb_sign_info *si,
-				       bool must_be_ok)
+bool smb_signing_check_pdu(struct smb_signing_state *si,
+			   const uint8_t *inbuf, uint32_t seqnum)
 {
 	bool good;
-	struct smb_basic_signing_context *data =
-		(struct smb_basic_signing_context *)si->signing_context;
-	uint32 reply_seq_number = data->send_seq_num;
-	uint32 saved_seq;
-	unsigned char calc_md5_mac[16];
-	unsigned char *server_sent_mac;
+	uint8_t calc_md5_mac[16];
+	const uint8_t *reply_sent_mac;
 
-	if (!si->doing_signing)
-		return True;
+	if (si->mac_key.length == 0) {
+		return true;
+	}
 
 	if (smb_len(inbuf) < (smb_ss_field + 8 - 4)) {
-		DEBUG(1, ("srv_check_incoming_message: Can't check signature on short packet! smb_len = %u\n", smb_len(inbuf)));
+		DEBUG(1,("smb_signing_check_pdu: Can't check signature "
+			 "on short packet! smb_len = %u\n",
+			 smb_len(inbuf)));
 		return False;
 	}
 
-	/* We always increment the sequence number. */
-	data->send_seq_num += 2;
-
-	saved_seq = reply_seq_number;
-	simple_packet_signature(data, (const unsigned char *)inbuf, reply_seq_number, calc_md5_mac);
+	smb_signing_md5(&si->mac_key, inbuf,
+			seqnum, calc_md5_mac);
 
-	server_sent_mac = (unsigned char *)&inbuf[smb_ss_field];
-	good = (memcmp(server_sent_mac, calc_md5_mac, 8) == 0);
+	reply_sent_mac = &inbuf[smb_ss_field];
+	good = (memcmp(reply_sent_mac, calc_md5_mac, 8) == 0);
 
 	if (!good) {
+		int i;
+		const int sign_range = 5;
 
-		if (saved_seq) {
-			DEBUG(0, ("srv_check_incoming_message: BAD SIG: seq %u wanted SMB signature of\n",
-					(unsigned int)saved_seq));
-			dump_data(5, calc_md5_mac, 8);
-
-			DEBUG(0, ("srv_check_incoming_message: BAD SIG: seq %u got SMB signature of\n",
-						(unsigned int)reply_seq_number));
-			dump_data(5, server_sent_mac, 8);
-		}
+		DEBUG(5, ("smb_signing_check_pdu: BAD SIG: wanted SMB signature of\n"));
+		dump_data(5, calc_md5_mac, 8);
 
-#if 1 /* JRATEST */
-		{
-			int i;
-			reply_seq_number -= 5;
-			for (i = 0; i < 10; i++, reply_seq_number++) {
-				simple_packet_signature(data, (const unsigned char *)inbuf, reply_seq_number, calc_md5_mac);
-				if (memcmp(server_sent_mac, calc_md5_mac, 8) == 0) {
-					DEBUG(0,("srv_check_incoming_message: out of seq. seq num %u matches. \
-We were expecting seq %u\n", reply_seq_number, saved_seq ));
-					break;
-				}
+		DEBUG(5, ("smb_signing_check_pdu: BAD SIG: got SMB signature of\n"));
+		dump_data(5, reply_sent_mac, 8);
+
+		for (i = -sign_range; i < sign_range; i++) {
+			smb_signing_md5(&si->mac_key, inbuf,
+					seqnum+i, calc_md5_mac);
+			if (memcmp(reply_sent_mac, calc_md5_mac, 8) == 0) {
+				DEBUG(0,("smb_signing_check_pdu: "
+					 "out of seq. seq num %u matches. "
+					 "We were expecting seq %u\n",
+					 (unsigned int)seqnum+i,
+					 (unsigned int)seqnum));
+				break;
 			}
 		}
-#endif /* JRATEST */
-
 	} else {
-		DEBUG(10, ("srv_check_incoming_message: seq %u: (current is %u) got good SMB signature of\n", (unsigned int)reply_seq_number, (unsigned int)data->send_seq_num));
-		dump_data(10, server_sent_mac, 8);
+		DEBUG(10, ("smb_signing_check_pdu: seq %u: "
+			   "got good SMB signature of\n",
+			   (unsigned int)seqnum));
+		dump_data(10, reply_sent_mac, 8);
 	}
 
-	return (signing_good(inbuf, si, good, saved_seq, must_be_ok));
+	return smb_signing_good(si, good, seqnum);
 }
 
-/***********************************************************
- SMB signing - server API's.
-************************************************************/
-
-static struct smb_sign_info srv_sign_info = {
-	null_sign_outgoing_message,
-	null_check_incoming_message,
-	null_free_signing_context,
-	NULL,
-	False,
-	False,
-	False,
-	False
-};
-
-/***********************************************************
- Turn signing off or on for oplock break code.
-************************************************************/
-
-bool srv_oplock_set_signing(bool onoff)
+bool smb_signing_set_bsrspyl(struct smb_signing_state *si)
 {
-	bool ret = srv_sign_info.doing_signing;
-	srv_sign_info.doing_signing = onoff;
-	return ret;
-}
-
-/***********************************************************
- Called to validate an incoming packet from the client.
-************************************************************/
-
-bool srv_check_sign_mac(const char *inbuf, bool must_be_ok)
-{
-	/* Check if it's a non-session message. */
-	if(CVAL(inbuf,0)) {
-		return True;
+	if (!si->negotiated) {
+		return false;
 	}
 
-	return srv_sign_info.check_incoming_message(inbuf, &srv_sign_info, must_be_ok);
-}
-
-/***********************************************************
- Called to sign an outgoing packet to the client.
-************************************************************/
-
-void srv_calculate_sign_mac(char *outbuf)
-{
-	/* Check if it's a non-session message. */
-	if(CVAL(outbuf,0)) {
-		return;
+	if (si->active) {
+		return false;
 	}
 
-	srv_sign_info.sign_outgoing_message(outbuf, &srv_sign_info);
-}
+	si->bsrspyl = true;
 
-/***********************************************************
- Called by server to defer an outgoing packet.
-************************************************************/
+	return true;
+}
 
-void srv_defer_sign_response(uint16 mid)
+bool smb_signing_activate(struct smb_signing_state *si,
+			  const DATA_BLOB user_session_key,
+			  const DATA_BLOB response)
 {
-	struct smb_basic_signing_context *data;
-
-	if (!srv_sign_info.doing_signing)
-		return;
+	size_t len;
+	off_t ofs;
 
-	data = (struct smb_basic_signing_context *)srv_sign_info.signing_context;
+	if (!user_session_key.length) {
+		return false;
+	}
 
-	if (!data)
-		return;
+	if (!si->negotiated) {
+		return false;
+	}
 
-	/*
-	 * Ensure we only store this mid reply once...
-	 */
+	if (si->active) {
+		return false;
+	}
 
-	store_sequence_for_reply(&data->outstanding_packet_list, mid,
-				 data->send_seq_num-1);
-}
+	if (si->mac_key.length > 0) {
+		return false;
+	}
 
-/***********************************************************
- Called to remove sequence records when a deferred packet is
- cancelled by mid. This should never find one....
-************************************************************/
+	smb_signing_reset_info(si);
 
-void srv_cancel_sign_response(uint16 mid, bool cancel)
-{
-	struct smb_basic_signing_context *data;
-	uint32 dummy_seq;
+	len = response.length + user_session_key.length;
+	si->mac_key = data_blob_talloc(si, NULL, len);
 
-	if (!srv_sign_info.doing_signing)
-		return;
+	ofs = 0;
+	memcpy(&si->mac_key.data[ofs], user_session_key.data, user_session_key.length);
 
-	data = (struct smb_basic_signing_context *)srv_sign_info.signing_context;
+	DEBUG(10, ("smb_signing_activate: user_session_key\n"));
+	dump_data(10, user_session_key.data, user_session_key.length);
 
-	if (!data)
-		return;
+	if (response.length) {
+		ofs = user_session_key.length;
+		memcpy(&si->mac_key.data[ofs], response.data, response.length);
+		DEBUG(10, ("smb_signing_activate: response_data\n"));
+		dump_data(10, response.data, response.length);
+	} else {
+		DEBUG(10, ("smb_signing_activate: NULL response_data\n"));
+	}
 
-	DEBUG(10,("srv_cancel_sign_response: for mid %u\n", (unsigned int)mid ));
+	dump_data_pw("smb_signing_activate: mac key is:\n",
+		     si->mac_key.data, si->mac_key.length);
 
-	while (get_sequence_for_reply(&data->outstanding_packet_list, mid, &dummy_seq))
-		;
+	/* Initialise the sequence number */
+	si->seqnum = 2;
 
-	/* cancel doesn't send a reply so doesn't burn a sequence number. */
-	if (cancel) {
-		data->send_seq_num -= 1;
-	}
+	return true;
 }
 
-/***********************************************************
- Called by server negprot when signing has been negotiated.
-************************************************************/
-
-void srv_set_signing_negotiated(void)
+bool smb_signing_is_active(struct smb_signing_state *si)
 {
-	srv_sign_info.allow_smb_signing = True;
-	srv_sign_info.negotiated_smb_signing = True;
-	if (lp_server_signing() == Required)
-		srv_sign_info.mandatory_signing = True;
-
-	srv_sign_info.sign_outgoing_message = temp_sign_outgoing_message;
-	srv_sign_info.check_incoming_message = temp_check_incoming_message;
-	srv_sign_info.free_signing_context = temp_free_signing_context;
+	return si->active;
 }
 
-/***********************************************************
- Returns whether signing is active. We can't use sendfile or raw
- reads/writes if it is.
-************************************************************/
-
-bool srv_is_signing_active(void)
+bool smb_signing_is_allowed(struct smb_signing_state *si)
 {
-	return srv_sign_info.doing_signing;
+	return si->allowed;
 }
 
-
-/***********************************************************
- Returns whether signing is negotiated. We can't use it unless it was
- in the negprot.  
-************************************************************/
-
-bool srv_is_signing_negotiated(void)
+bool smb_signing_is_mandatory(struct smb_signing_state *si)
 {
-	return srv_sign_info.negotiated_smb_signing;
+	return si->mandatory;
 }
 
-/***********************************************************
- Returns whether signing is actually happening
-************************************************************/
-
-bool srv_signing_started(void)
+bool smb_signing_set_negotiated(struct smb_signing_state *si)
 {
-	struct smb_basic_signing_context *data;
-
-	if (!srv_sign_info.doing_signing) {
-		return False;
+	if (!si->allowed) {
+		return false;
 	}
 
-	data = (struct smb_basic_signing_context *)srv_sign_info.signing_context;
-	if (!data)
-		return False;
+	si->negotiated = true;
 
-	if (data->send_seq_num == 0) {
-		return False;
-	}
-
-	return True;
+	return true;
 }
 
-/***********************************************************
- Turn on signing from this packet onwards. 
-************************************************************/
-
-void srv_set_signing(const DATA_BLOB user_session_key, const DATA_BLOB response)
+bool smb_signing_is_negotiated(struct smb_signing_state *si)
 {
-	struct smb_basic_signing_context *data;
-
-	if (!user_session_key.length)
-		return;
-
-	if (!srv_sign_info.negotiated_smb_signing && !srv_sign_info.mandatory_signing) {
-		DEBUG(5,("srv_set_signing: signing negotiated = %u, mandatory_signing = %u. Not allowing smb signing.\n",
-			(unsigned int)srv_sign_info.negotiated_smb_signing,
-			(unsigned int)srv_sign_info.mandatory_signing ));
-		return;
-	}
-
-	/* Once we've turned on, ignore any more sessionsetups. */
-	if (srv_sign_info.doing_signing) {
-		return;
-	}
-
-	if (srv_sign_info.free_signing_context)
-		srv_sign_info.free_signing_context(&srv_sign_info);
-
-	srv_sign_info.doing_signing = True;
-
-	data = SMB_XMALLOC_P(struct smb_basic_signing_context);
-	memset(data, '\0', sizeof(*data));
-
-	srv_sign_info.signing_context = data;
-
-	data->mac_key = data_blob(NULL, response.length + user_session_key.length);
-
-	memcpy(&data->mac_key.data[0], user_session_key.data, user_session_key.length);
-	if (response.length)
-		memcpy(&data->mac_key.data[user_session_key.length],response.data, response.length);
-
-	dump_data_pw("MAC ssession key is:\n", data->mac_key.data, data->mac_key.length);
-
-	DEBUG(3,("srv_set_signing: turning on SMB signing: signing negotiated = %s, mandatory_signing = %s.\n",
-				BOOLSTR(srv_sign_info.negotiated_smb_signing),
-			 	BOOLSTR(srv_sign_info.mandatory_signing) ));
-
-	/* Initialise the sequence number */
-	data->send_seq_num = 0;
-
-	/* Initialise the list of outstanding packets */
-	data->outstanding_packet_list = NULL;
-
-	srv_sign_info.sign_outgoing_message = srv_sign_outgoing_message;
-	srv_sign_info.check_incoming_message = srv_check_incoming_message;
-	srv_sign_info.free_signing_context = simple_free_signing_context;
+	return si->negotiated;
 }
diff --git a/source3/libsmb/unexpected.c b/source3/libsmb/unexpected.c
index df4d2119e2..d123e24aa8 100644
--- a/source3/libsmb/unexpected.c
+++ b/source3/libsmb/unexpected.c
@@ -162,6 +162,8 @@ static int traverse_match(TDB_CONTEXT *ttdb, TDB_DATA kbuf, TDB_DATA dbuf,
 			state->match_type,
 			ip,
 			port);
+	if (!p)
+		return 0;
 
 	if ((state->match_type == NMB_PACKET &&
 	     p->packet.nmb.header.name_trn_id == state->match_id) ||
diff --git a/source3/locking/locking.c b/source3/locking/locking.c
index bafb89522a..70841225a7 100644
--- a/source3/locking/locking.c
+++ b/source3/locking/locking.c
@@ -887,7 +887,8 @@ struct share_mode_lock *fetch_share_mode_unlocked(TALLOC_CTX *mem_ctx,
 	}
 
 	if (!fill_share_mode_lock(lck, id, servicepath, fname, data, NULL)) {
-		DEBUG(3, ("fill_share_mode_lock failed\n"));
+		DEBUG(10, ("fetch_share_mode_unlocked: no share_mode record "
+			   "around (file not open)\n"));
 		TALLOC_FREE(lck);
 		return NULL;
 	}
diff --git a/source3/modules/onefs_acl.c b/source3/modules/onefs_acl.c
index 6f23d608d4..8ee31abc88 100644
--- a/source3/modules/onefs_acl.c
+++ b/source3/modules/onefs_acl.c
@@ -825,7 +825,7 @@ NTSTATUS onefs_samba_sd_to_sd(uint32 security_info_sent, SEC_DESC *psd,
 	/* Setup owner */
 	if (security_info_sent & OWNER_SECURITY_INFORMATION) {
 		if (!onefs_og_to_identity(psd->owner_sid, &owner, false, snum))
-			return NT_STATUS_UNSUCCESSFUL;
+			return NT_STATUS_ACCESS_DENIED;
 
 		SMB_ASSERT(owner.id.uid >= 0);
 
@@ -835,7 +835,7 @@ NTSTATUS onefs_samba_sd_to_sd(uint32 security_info_sent, SEC_DESC *psd,
 	/* Setup group */
 	if (security_info_sent & GROUP_SECURITY_INFORMATION) {
 		if (!onefs_og_to_identity(psd->group_sid, &group, true, snum))
-			return NT_STATUS_UNSUCCESSFUL;
+			return NT_STATUS_ACCESS_DENIED;
 
 		SMB_ASSERT(group.id.gid >= 0);
 
@@ -846,7 +846,7 @@ NTSTATUS onefs_samba_sd_to_sd(uint32 security_info_sent, SEC_DESC *psd,
 	if ((security_info_sent & DACL_SECURITY_INFORMATION) && (psd->dacl)) {
 		if (!onefs_samba_acl_to_acl(psd->dacl, &daclp, &ignore_aces,
 			snum))
-			return NT_STATUS_UNSUCCESSFUL;
+			return NT_STATUS_ACCESS_DENIED;
 
 		if (ignore_aces == true)
 			security_info_sent &= ~DACL_SECURITY_INFORMATION;
@@ -863,7 +863,7 @@ NTSTATUS onefs_samba_sd_to_sd(uint32 security_info_sent, SEC_DESC *psd,
 			if (psd->sacl) {
 				if (!onefs_samba_acl_to_acl(psd->sacl,
 					&saclp, &ignore_aces, snum))
-					return NT_STATUS_UNSUCCESSFUL;
+					return NT_STATUS_ACCESS_DENIED;
 
 				if (ignore_aces == true) {
 					security_info_sent &=
@@ -877,7 +877,7 @@ NTSTATUS onefs_samba_sd_to_sd(uint32 security_info_sent, SEC_DESC *psd,
 	DEBUG(5,("Setting up SD\n"));
 	if (aclu_initialize_sd(sd, psd->type, ownerp, groupp,
 		(daclp ? &daclp : NULL), (saclp ? &saclp : NULL), false))
-		return NT_STATUS_UNSUCCESSFUL;
+		return NT_STATUS_ACCESS_DENIED;
 
 	return NT_STATUS_OK;
 }
diff --git a/source3/modules/onefs_open.c b/source3/modules/onefs_open.c
index c5030f4ab8..c23c176b79 100644
--- a/source3/modules/onefs_open.c
+++ b/source3/modules/onefs_open.c
@@ -208,14 +208,14 @@ static NTSTATUS onefs_open_file(files_struct *fsp,
 		if ((oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK) !=
 		     NO_OPLOCK) {
 			DEBUG(0,("Oplock(%d) being requested on a stream! "
-				"Ignoring oplock request: base=%s, stream=%s",
+				"Ignoring oplock request: base=%s, stream=%s\n",
 				oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK,
 				base, stream));
 			/* Recover by requesting NO_OPLOCK instead. */
 			oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
 		}
 
-		DEBUG(10,("Opening a stream: base=%s(%d), stream=%s",
+		DEBUG(10,("Opening a stream: base=%s(%d), stream=%s\n",
 			  base, fsp->base_fsp->fh->fd, stream));
 
 		base_fd = fsp->base_fsp->fh->fd;
@@ -386,15 +386,6 @@ static void defer_open(struct share_mode_lock *lck,
 		exit_server("push_deferred_smb_message failed");
 	}
 	add_deferred_open(lck, req->mid, request_time, state->id);
-
-	/*
-	 * Push the MID of this packet on the signing queue.
-	 * We only do this once, the first time we push the packet
-	 * onto the deferred open queue, as this has a side effect
-	 * of incrementing the response sequence number.
-	 */
-
-	srv_defer_sign_response(req->mid);
 }
 
 static void schedule_defer_open(struct share_mode_lock *lck,
diff --git a/source3/modules/vfs_dirsort.c b/source3/modules/vfs_dirsort.c
new file mode 100644
index 0000000000..53d1820c11
--- /dev/null
+++ b/source3/modules/vfs_dirsort.c
@@ -0,0 +1,194 @@
+/*
+ * VFS module to provide a sorted directory list.
+ *
+ * Copyright (C) Andy Kelk (andy@mopoke.co.uk), 2009
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+
+static int compare_dirent (const void *a, const void *b) {
+	const SMB_STRUCT_DIRENT *da = (const SMB_STRUCT_DIRENT *) a;
+	const SMB_STRUCT_DIRENT *db = (const SMB_STRUCT_DIRENT *) b;
+	return StrCaseCmp(da->d_name, db->d_name);
+}
+
+struct dirsort_privates {
+	long pos;
+	SMB_STRUCT_DIRENT *directory_list;
+	long number_of_entries;
+	time_t mtime;
+	SMB_STRUCT_DIR *source_directory;
+	int fd;
+};
+
+static void free_dirsort_privates(void **datap) {
+	struct dirsort_privates *data = (struct dirsort_privates *) *datap;
+	SAFE_FREE(data->directory_list);
+	SAFE_FREE(data);
+	*datap = NULL;
+
+	return;
+}
+
+static void open_and_sort_dir (vfs_handle_struct *handle)
+{
+	SMB_STRUCT_DIRENT *dp;
+	struct stat dir_stat;
+	long current_pos;
+	struct dirsort_privates *data = NULL;
+
+	SMB_VFS_HANDLE_GET_DATA(handle, data, struct dirsort_privates, return);
+
+	data->number_of_entries = 0;
+
+	if (fstat(data->fd, &dir_stat) == 0) {
+		data->mtime = dir_stat.st_mtime;
+	}
+
+	while (SMB_VFS_NEXT_READDIR(handle, data->source_directory, NULL)
+	       != NULL) {
+		data->number_of_entries++;
+	}
+
+	/* Open the underlying directory and count the number of entries
+	   Skip back to the beginning as we'll read it again */
+	SMB_VFS_NEXT_REWINDDIR(handle, data->source_directory);
+
+	/* Set up an array and read the directory entries into it */
+	SAFE_FREE(data->directory_list); /* destroy previous cache if needed */
+	data->directory_list = (SMB_STRUCT_DIRENT *)SMB_MALLOC(
+		data->number_of_entries * sizeof(SMB_STRUCT_DIRENT));
+	current_pos = data->pos;
+	data->pos = 0;
+	while ((dp = SMB_VFS_NEXT_READDIR(handle, data->source_directory,
+					  NULL)) != NULL) {
+		data->directory_list[data->pos++] = *dp;
+	}
+
+	/* Sort the directory entries by name */
+	data->pos = current_pos;
+	qsort(data->directory_list, data->number_of_entries,
+	      sizeof(SMB_STRUCT_DIRENT), compare_dirent);
+}
+
+static SMB_STRUCT_DIR *dirsort_opendir(vfs_handle_struct *handle,
+				       const char *fname, const char *mask,
+				       uint32 attr)
+{
+	struct dirsort_privates *data = NULL;
+
+	/* set up our private data about this directory */
+	data = (struct dirsort_privates *)SMB_MALLOC(
+		sizeof(struct dirsort_privates));
+
+	data->directory_list = NULL;
+	data->pos = 0;
+
+	/* Open the underlying directory and count the number of entries */
+	data->source_directory = SMB_VFS_NEXT_OPENDIR(handle, fname, mask,
+						      attr);
+
+	data->fd = dirfd(data->source_directory);
+
+	SMB_VFS_HANDLE_SET_DATA(handle, data, free_dirsort_privates,
+				struct dirsort_privates, return NULL);
+
+	open_and_sort_dir(handle);
+
+	return data->source_directory;
+}
+
+static SMB_STRUCT_DIRENT *dirsort_readdir(vfs_handle_struct *handle,
+					  SMB_STRUCT_DIR *dirp)
+{
+	struct dirsort_privates *data = NULL;
+	time_t current_mtime;
+	struct stat dir_stat;
+
+	SMB_VFS_HANDLE_GET_DATA(handle, data, struct dirsort_privates,
+				return NULL);
+
+	if (fstat(data->fd, &dir_stat) == -1) {
+		return NULL;
+	}
+
+	current_mtime = dir_stat.st_mtime;
+
+	/* throw away cache and re-read the directory if we've changed */
+	if (current_mtime > data->mtime) {
+		open_and_sort_dir(handle);
+	}
+
+	if (data->pos >= data->number_of_entries) {
+		return NULL;
+	}
+
+	return &data->directory_list[data->pos++];
+}
+
+static void dirsort_seekdir(vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp,
+			    long offset)
+{
+	struct dirsort_privates *data = NULL;
+	SMB_VFS_HANDLE_GET_DATA(handle, data, struct dirsort_privates, return);
+
+	data->pos = offset;
+}
+
+static long dirsort_telldir(vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp)
+{
+	struct dirsort_privates *data = NULL;
+	SMB_VFS_HANDLE_GET_DATA(handle, data, struct dirsort_privates,
+				return -1);
+
+	return data->pos;
+}
+
+static void dirsort_rewinddir(vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp)
+{
+	struct dirsort_privates *data = NULL;
+	SMB_VFS_HANDLE_GET_DATA(handle, data, struct dirsort_privates, return);
+
+	data->pos = 0;
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple dirsort_op_tuples[] = {
+
+    /* Directory operations */
+
+    {SMB_VFS_OP(dirsort_opendir),	     SMB_VFS_OP_OPENDIR,
+     SMB_VFS_LAYER_TRANSPARENT},
+    {SMB_VFS_OP(dirsort_readdir),	     SMB_VFS_OP_READDIR,
+     SMB_VFS_LAYER_TRANSPARENT},
+    {SMB_VFS_OP(dirsort_seekdir),	     SMB_VFS_OP_SEEKDIR,
+     SMB_VFS_LAYER_TRANSPARENT},
+    {SMB_VFS_OP(dirsort_telldir),	     SMB_VFS_OP_TELLDIR,
+     SMB_VFS_LAYER_TRANSPARENT},
+    {SMB_VFS_OP(dirsort_rewinddir),	     SMB_VFS_OP_REWINDDIR,
+     SMB_VFS_LAYER_TRANSPARENT},
+
+    {NULL,				     SMB_VFS_OP_NOOP,
+     SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_dirsort_init(void)
+{
+	return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "dirsort",
+				dirsort_op_tuples);
+}
diff --git a/source3/nmbd/nmbd.c b/source3/nmbd/nmbd.c
index 3279466602..daf4c295a6 100644
--- a/source3/nmbd/nmbd.c
+++ b/source3/nmbd/nmbd.c
@@ -988,6 +988,12 @@ static bool open_sockets(bool isdaemon, int port)
 		exit(1);
 	}
 
+	if (!initialize_nmbd_proxy_logon()) {
+		DEBUG(0,("ERROR: Failed setup nmbd_proxy_logon.\n"));
+		kill_async_dns_child();
+		exit(1);
+	}
+
 	TALLOC_FREE(frame);
 	process();
 
diff --git a/source3/nmbd/nmbd_processlogon.c b/source3/nmbd/nmbd_processlogon.c
index 59a2ca405e..8173337da0 100644
--- a/source3/nmbd/nmbd_processlogon.c
+++ b/source3/nmbd/nmbd_processlogon.c
@@ -24,6 +24,9 @@
 */
 
 #include "includes.h"
+#include "../libcli/netlogon.h"
+#include "../libcli/cldap/cldap.h"
+#include "../lib/tsocket/tsocket.h"
 
 struct sam_database_info {
         uint32 index;
@@ -65,6 +68,235 @@ static void delayed_init_logon_handler(struct event_context *event_ctx,
 	TALLOC_FREE(te);
 }
 
+struct nmbd_proxy_logon_context {
+	struct cldap_socket *cldap_sock;
+};
+
+static struct nmbd_proxy_logon_context *global_nmbd_proxy_logon;
+
+bool initialize_nmbd_proxy_logon(void)
+{
+	const char *cldap_server = lp_parm_const_string(-1, "nmbd_proxy_logon",
+						        "cldap_server", NULL);
+	struct nmbd_proxy_logon_context *ctx;
+	NTSTATUS status;
+	struct in_addr addr;
+	char addrstr[INET_ADDRSTRLEN];
+	const char *server_str;
+	int ret;
+	struct tsocket_address *server_addr;
+
+	if (!cldap_server) {
+		return true;
+	}
+
+	addr = interpret_addr2(cldap_server);
+	server_str = inet_ntop(AF_INET, &addr,
+			     addrstr, sizeof(addrstr));
+	if (!server_str || strcmp("0.0.0.0", server_str) == 0) {
+		DEBUG(0,("Failed to resolve[%s] for nmbd_proxy_logon\n",
+			 cldap_server));
+		return false;
+	}
+
+	ctx = talloc_zero(nmbd_event_context(),
+			  struct nmbd_proxy_logon_context);
+	if (!ctx) {
+		return false;
+	}
+
+	ret = tsocket_address_inet_from_strings(ctx, "ipv4",
+						server_str, LDAP_PORT,
+						&server_addr);
+	if (ret != 0) {
+		TALLOC_FREE(ctx);
+		status = map_nt_error_from_unix(errno);
+		DEBUG(0,("Failed to create cldap tsocket_address for %s - %s\n",
+			 server_str, nt_errstr(status)));
+		return false;
+	}
+
+	/* we create a connected udp socket */
+	status = cldap_socket_init(ctx, nmbd_event_context(), NULL,
+				   server_addr, &ctx->cldap_sock);
+	TALLOC_FREE(server_addr);
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(ctx);
+		DEBUG(0,("failed to create cldap socket for %s: %s\n",
+			server_str, nt_errstr(status)));
+		return false;
+	}
+
+	global_nmbd_proxy_logon = ctx;
+	return true;
+}
+
+struct nmbd_proxy_logon_state {
+	struct in_addr local_ip;
+	struct packet_struct *p;
+	const char *remote_name;
+	uint8_t remote_name_type;
+	const char *remote_mailslot;
+	struct nbt_netlogon_packet req;
+	struct nbt_netlogon_response resp;
+	struct cldap_netlogon io;
+};
+
+static int nmbd_proxy_logon_state_destructor(struct nmbd_proxy_logon_state *s)
+{
+	s->p->locked = false;
+	free_packet(s->p);
+	return 0;
+}
+
+static void nmbd_proxy_logon_done(struct tevent_req *subreq);
+
+static void nmbd_proxy_logon(struct nmbd_proxy_logon_context *ctx,
+			     struct in_addr local_ip,
+			     struct packet_struct *p,
+			     uint8_t *buf,
+			     uint32_t len)
+{
+	struct nmbd_proxy_logon_state *state;
+	enum ndr_err_code ndr_err;
+	DATA_BLOB blob = data_blob_const(buf, len);
+	const char *computer_name = NULL;
+	const char *mailslot_name = NULL;
+	const char *user_name = NULL;
+	const char *domain_sid = NULL;
+	uint32_t acct_control = 0;
+	uint32_t nt_version = 0;
+	struct tevent_req *subreq;
+	fstring source_name;
+	struct dgram_packet *dgram = &p->packet.dgram;
+
+	state = TALLOC_ZERO_P(ctx, struct nmbd_proxy_logon_state);
+	if (!state) {
+		DEBUG(0,("failed to allocate nmbd_proxy_logon_state\n"));
+		return;
+	}
+
+	pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
+	state->remote_name = talloc_strdup(state, source_name);
+	state->remote_name_type = dgram->source_name.name_type,
+	state->local_ip = local_ip;
+	state->p = p;
+
+	ndr_err = ndr_pull_struct_blob(
+		&blob, state, NULL, &state->req,
+		(ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_packet);
+	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+		NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
+		DEBUG(0,("failed parse nbt_letlogon_packet: %s\n",
+			nt_errstr(status)));
+		TALLOC_FREE(state);
+		return;
+	}
+
+	if (DEBUGLEVEL >= 10) {
+		DEBUG(10, ("nmbd_proxy_logon:\n"));
+		NDR_PRINT_DEBUG(nbt_netlogon_packet, &state->req);
+	}
+
+	switch (state->req.command) {
+	case LOGON_SAM_LOGON_REQUEST:
+		computer_name	= state->req.req.logon.computer_name;
+		user_name	= state->req.req.logon.user_name;
+		mailslot_name	= state->req.req.logon.mailslot_name;
+		acct_control	= state->req.req.logon.acct_control;
+		if (state->req.req.logon.sid_size > 0) {
+			domain_sid = dom_sid_string(state,
+						    &state->req.req.logon.sid);
+			if (!domain_sid) {
+				DEBUG(0,("failed to get a string for sid\n"));
+				TALLOC_FREE(state);
+				return;
+			}
+		}
+		nt_version	= state->req.req.logon.nt_version;
+		break;
+
+	default:
+		/* this can't happen as the caller already checks the command */
+		break;
+	}
+
+	state->remote_mailslot = mailslot_name;
+
+	if (user_name && strlen(user_name) == 0) {
+		user_name = NULL;
+	}
+
+	if (computer_name && strlen(computer_name) == 0) {
+		computer_name = NULL;
+	}
+
+	/*
+	 * as the socket is connected,
+	 * we don't need to specify the destination
+	 */
+	state->io.in.dest_address	= NULL;
+	state->io.in.dest_port		= 0;
+	state->io.in.realm		= NULL;
+	state->io.in.host		= computer_name;
+	state->io.in.user		= user_name;
+	state->io.in.domain_guid	= NULL;
+	state->io.in.domain_sid		= domain_sid;
+	state->io.in.acct_control	= acct_control;
+	state->io.in.version		= nt_version;
+	state->io.in.map_response	= false;
+
+	subreq = cldap_netlogon_send(state,
+				     ctx->cldap_sock,
+				     &state->io);
+	if (!subreq) {
+		DEBUG(0,("failed to send cldap netlogon call\n"));
+		TALLOC_FREE(state);
+		return;
+	}
+	tevent_req_set_callback(subreq, nmbd_proxy_logon_done, state);
+
+	/* we reply async */
+	state->p->locked = true;
+	talloc_set_destructor(state, nmbd_proxy_logon_state_destructor);
+}
+
+static void nmbd_proxy_logon_done(struct tevent_req *subreq)
+{
+	struct nmbd_proxy_logon_state *state =
+		tevent_req_callback_data(subreq,
+		struct nmbd_proxy_logon_state);
+	NTSTATUS status;
+	DATA_BLOB response;
+
+	status = cldap_netlogon_recv(subreq, NULL, state, &state->io);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("failed to recv cldap netlogon call: %s\n",
+			nt_errstr(status)));
+		TALLOC_FREE(state);
+		return;
+	}
+
+	status = push_netlogon_samlogon_response(&response, state, NULL,
+						 &state->io.out.netlogon);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("failed to push netlogon_samlogon_response: %s\n",
+			nt_errstr(status)));
+		TALLOC_FREE(state);
+		return;
+	}
+
+	send_mailslot(true, state->remote_mailslot,
+		      (char *)response.data, response.length,
+		      global_myname(), 0x0,
+		      state->remote_name,
+		      state->remote_name_type,
+		      state->p->ip,
+		      state->local_ip,
+		      state->p->port);
+	TALLOC_FREE(state);
+}
+
 /****************************************************************************
 Process a domain logon packet
 **************************************************************************/
@@ -318,6 +550,12 @@ reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
 				char *q = buf + 2;
 				fstring asccomp;
 
+				if (global_nmbd_proxy_logon) {
+					nmbd_proxy_logon(global_nmbd_proxy_logon,
+							 ip, p, (uint8_t *)buf, len);
+					return;
+				}
+
 				q += 2;
 
 				if (PTR_DIFF(q, buf) >= len) {
diff --git a/source3/param/loadparm.c b/source3/param/loadparm.c
index f49a1bc4c9..66fb8bf1bc 100644
--- a/source3/param/loadparm.c
+++ b/source3/param/loadparm.c
@@ -9542,10 +9542,6 @@ const char *lp_printcapname(void)
 	return PRINTCAP_NAME;
 }
 
-/*******************************************************************
- Ensure we don't use sendfile if server smb signing is active.
-********************************************************************/
-
 static uint32 spoolss_state;
 
 bool lp_disable_spoolss( void )
@@ -9572,15 +9568,20 @@ uint32 lp_get_spoolss_state( void )
  Ensure we don't use sendfile if server smb signing is active.
 ********************************************************************/
 
-bool lp_use_sendfile(int snum)
+bool lp_use_sendfile(int snum, struct smb_signing_state *signing_state)
 {
+	bool sign_active = false;
+
 	/* Using sendfile blows the brains out of any DOS or Win9x TCP stack... JRA. */
 	if (Protocol < PROTOCOL_NT1) {
-		return False;
+		return false;
+	}
+	if (signing_state) {
+		sign_active = smb_signing_is_active(signing_state);
 	}
 	return (_lp_use_sendfile(snum) &&
 			(get_remote_arch() != RA_WIN95) &&
-			!srv_is_signing_active());
+			!sign_active);
 }
 
 /*******************************************************************
diff --git a/source3/passdb/lookup_sid.c b/source3/passdb/lookup_sid.c
index 9c20042a62..a5c2d50366 100644
--- a/source3/passdb/lookup_sid.c
+++ b/source3/passdb/lookup_sid.c
@@ -804,7 +804,7 @@ NTSTATUS lookup_sids(TALLOC_CTX *mem_ctx, int num_sids,
 		} else {
 			/* This is a normal SID with rid component */
 			if (!sid_split_rid(&sid, &rid)) {
-				result = NT_STATUS_INVALID_PARAMETER;
+				result = NT_STATUS_INVALID_SID;
 				goto fail;
 			}
 		}
diff --git a/source3/printing/nt_printing.c b/source3/printing/nt_printing.c
index 8e6fe1f364..a99485d381 100644
--- a/source3/printing/nt_printing.c
+++ b/source3/printing/nt_printing.c
@@ -2275,7 +2275,9 @@ static WERROR get_a_printer_driver_3_default(NT_PRINTER_DRIVER_INFO_LEVEL_3 **in
 
 /****************************************************************************
 ****************************************************************************/
-static WERROR get_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 **info_ptr, fstring drivername, const char *arch, uint32 version)
+static WERROR get_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 **info_ptr,
+				     const char *drivername, const char *arch,
+				     uint32_t version)
 {
 	NT_PRINTER_DRIVER_INFO_LEVEL_3 driver;
 	TDB_DATA dbuf;
@@ -4448,7 +4450,7 @@ bool set_driver_init(NT_PRINTER_INFO_LEVEL *printer, uint32 level)
  Delete driver init data stored for a specified driver
 ****************************************************************************/
 
-bool del_driver_init(char *drivername)
+bool del_driver_init(const char *drivername)
 {
 	char *key;
 	bool ret;
@@ -4837,8 +4839,9 @@ uint32 add_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL driver, uint32 level)
 /****************************************************************************
 ****************************************************************************/
 
-WERROR get_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL *driver, uint32 level,
-                            fstring drivername, const char *architecture, uint32 version)
+WERROR get_a_printer_driver(NT_PRINTER_DRIVER_INFO_LEVEL *driver, uint32_t level,
+			    const char *drivername, const char *architecture,
+			    uint32_t version)
 {
 	WERROR result;
 
diff --git a/source3/registry/regfio.c b/source3/registry/regfio.c
index d002bd72e7..e1c04c4777 100644
--- a/source3/registry/regfio.c
+++ b/source3/registry/regfio.c
@@ -712,8 +712,30 @@ static bool hbin_prs_sk_rec( const char *desc, REGF_HBIN *hbin, int depth, REGF_
 	if ( !prs_uint32( "size", ps, depth, &sk->size))
 		return False;
 
-	if ( !sec_io_desc( "sec_desc", &sk->sec_desc, ps, depth )) 
-		return False;
+	{
+		NTSTATUS status;
+		TALLOC_CTX *mem_ctx = prs_get_mem_context(&hbin->ps);
+		DATA_BLOB blob;
+
+		if (MARSHALLING(&hbin->ps)) {
+			status = marshall_sec_desc(mem_ctx,
+						   sk->sec_desc,
+						   &blob.data, &blob.length);
+			if (!NT_STATUS_IS_OK(status))
+				return False;
+			if (!prs_copy_data_in(&hbin->ps, (const char *)blob.data, blob.length))
+				return False;
+		} else {
+			blob = data_blob_const(prs_data_p(&hbin->ps),
+					       prs_data_size(&hbin->ps));
+			status = unmarshall_sec_desc(mem_ctx,
+						     blob.data, blob.length,
+						     &sk->sec_desc);
+			if (!NT_STATUS_IS_OK(status))
+				return False;
+			prs_set_offset(&hbin->ps, blob.length);
+		}
+	}
 
 	end_off = prs_offset( &hbin->ps );
 
diff --git a/source3/rpc_client/cli_pipe.c b/source3/rpc_client/cli_pipe.c
index 57f49fb83a..6b83c170f5 100644
--- a/source3/rpc_client/cli_pipe.c
+++ b/source3/rpc_client/cli_pipe.c
@@ -207,18 +207,18 @@ struct rpc_read_state {
 	size_t num_read;
 };
 
-static void rpc_read_done(struct async_req *subreq);
+static void rpc_read_done(struct tevent_req *subreq);
 
-static struct async_req *rpc_read_send(TALLOC_CTX *mem_ctx,
-				       struct event_context *ev,
-				       struct rpc_cli_transport *transport,
-				       uint8_t *data, size_t size)
+static struct tevent_req *rpc_read_send(TALLOC_CTX *mem_ctx,
+					struct event_context *ev,
+					struct rpc_cli_transport *transport,
+					uint8_t *data, size_t size)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_read_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_read_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_read_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->ev = ev;
@@ -234,34 +234,33 @@ static struct async_req *rpc_read_send(TALLOC_CTX *mem_ctx,
 	if (subreq == NULL) {
 		goto fail;
 	}
-	subreq->async.fn = rpc_read_done;
-	subreq->async.priv = result;
-	return result;
+	tevent_req_set_callback(subreq, rpc_read_done, req);
+	return req;
 
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void rpc_read_done(struct async_req *subreq)
+static void rpc_read_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_read_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_read_state *state = tevent_req_data(
+		req, struct rpc_read_state);
 	NTSTATUS status;
 	ssize_t received;
 
 	status = state->transport->read_recv(subreq, &received);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	state->num_read += received;
 	if (state->num_read == state->size) {
-		async_req_done(req);
+		tevent_req_done(req);
 		return;
 	}
 
@@ -269,16 +268,15 @@ static void rpc_read_done(struct async_req *subreq)
 					     state->data + state->num_read,
 					     state->size - state->num_read,
 					     state->transport->priv);
-	if (async_req_nomem(subreq, req)) {
+	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
-	subreq->async.fn = rpc_read_done;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, rpc_read_done, req);
 }
 
-static NTSTATUS rpc_read_recv(struct async_req *req)
+static NTSTATUS rpc_read_recv(struct tevent_req *req)
 {
-	return async_req_simple_recv_ntstatus(req);
+	return tevent_req_simple_recv_ntstatus(req);
 }
 
 struct rpc_write_state {
@@ -289,18 +287,18 @@ struct rpc_write_state {
 	size_t num_written;
 };
 
-static void rpc_write_done(struct async_req *subreq);
+static void rpc_write_done(struct tevent_req *subreq);
 
-static struct async_req *rpc_write_send(TALLOC_CTX *mem_ctx,
-					struct event_context *ev,
-					struct rpc_cli_transport *transport,
-					const uint8_t *data, size_t size)
+static struct tevent_req *rpc_write_send(TALLOC_CTX *mem_ctx,
+					 struct event_context *ev,
+					 struct rpc_cli_transport *transport,
+					 const uint8_t *data, size_t size)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_write_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_write_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_write_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->ev = ev;
@@ -315,34 +313,33 @@ static struct async_req *rpc_write_send(TALLOC_CTX *mem_ctx,
 	if (subreq == NULL) {
 		goto fail;
 	}
-	subreq->async.fn = rpc_write_done;
-	subreq->async.priv = result;
-	return result;
+	tevent_req_set_callback(subreq, rpc_write_done, req);
+	return req;
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void rpc_write_done(struct async_req *subreq)
+static void rpc_write_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_write_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_write_state *state = tevent_req_data(
+		req, struct rpc_write_state);
 	NTSTATUS status;
 	ssize_t written;
 
 	status = state->transport->write_recv(subreq, &written);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	state->num_written += written;
 
 	if (state->num_written == state->size) {
-		async_req_done(req);
+		tevent_req_done(req);
 		return;
 	}
 
@@ -350,16 +347,15 @@ static void rpc_write_done(struct async_req *subreq)
 					      state->data + state->num_written,
 					      state->size - state->num_written,
 					      state->transport->priv);
-	if (async_req_nomem(subreq, req)) {
+	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
-	subreq->async.fn = rpc_write_done;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, rpc_write_done, req);
 }
 
-static NTSTATUS rpc_write_recv(struct async_req *req)
+static NTSTATUS rpc_write_recv(struct tevent_req *req)
 {
-	return async_req_simple_recv_ntstatus(req);
+	return tevent_req_simple_recv_ntstatus(req);
 }
 
 
@@ -399,22 +395,23 @@ struct get_complete_frag_state {
 	prs_struct *pdu;
 };
 
-static void get_complete_frag_got_header(struct async_req *subreq);
-static void get_complete_frag_got_rest(struct async_req *subreq);
+static void get_complete_frag_got_header(struct tevent_req *subreq);
+static void get_complete_frag_got_rest(struct tevent_req *subreq);
 
-static struct async_req *get_complete_frag_send(TALLOC_CTX *mem_ctx,
-					       struct event_context *ev,
-					       struct rpc_pipe_client *cli,
-					       struct rpc_hdr_info *prhdr,
-					       prs_struct *pdu)
+static struct tevent_req *get_complete_frag_send(TALLOC_CTX *mem_ctx,
+						 struct event_context *ev,
+						 struct rpc_pipe_client *cli,
+						 struct rpc_hdr_info *prhdr,
+						 prs_struct *pdu)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct get_complete_frag_state *state;
 	uint32_t pdu_len;
 	NTSTATUS status;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct get_complete_frag_state)) {
+	req = tevent_req_create(mem_ctx, &state,
+				struct get_complete_frag_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->ev = ev;
@@ -437,9 +434,9 @@ static struct async_req *get_complete_frag_send(TALLOC_CTX *mem_ctx,
 			status = NT_STATUS_NO_MEMORY;
 			goto post_status;
 		}
-		subreq->async.fn = get_complete_frag_got_header;
-		subreq->async.priv = result;
-		return result;
+		tevent_req_set_callback(subreq, get_complete_frag_got_header,
+					req);
+		return req;
 	}
 
 	status = parse_rpc_header(cli, prhdr, pdu);
@@ -463,43 +460,44 @@ static struct async_req *get_complete_frag_send(TALLOC_CTX *mem_ctx,
 			status = NT_STATUS_NO_MEMORY;
 			goto post_status;
 		}
-		subreq->async.fn = get_complete_frag_got_rest;
-		subreq->async.priv = result;
-		return result;
+		tevent_req_set_callback(subreq, get_complete_frag_got_rest,
+					req);
+		return req;
 	}
 
 	status = NT_STATUS_OK;
  post_status:
-	if (async_post_ntstatus(result, ev, status)) {
-		return result;
+	if (NT_STATUS_IS_OK(status)) {
+		tevent_req_done(req);
+	} else {
+		tevent_req_nterror(req, status);
 	}
-	TALLOC_FREE(result);
-	return NULL;
+	return tevent_req_post(req, ev);
 }
 
-static void get_complete_frag_got_header(struct async_req *subreq)
+static void get_complete_frag_got_header(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct get_complete_frag_state *state = talloc_get_type_abort(
-		req->private_data, struct get_complete_frag_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct get_complete_frag_state *state = tevent_req_data(
+		req, struct get_complete_frag_state);
 	NTSTATUS status;
 
 	status = rpc_read_recv(subreq);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	status = parse_rpc_header(state->cli, state->prhdr, state->pdu);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	if (!rpc_grow_buffer(state->pdu, state->prhdr->frag_len)) {
-		async_req_nterror(req, NT_STATUS_NO_MEMORY);
+		tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
 		return;
 	}
 
@@ -512,31 +510,30 @@ static void get_complete_frag_got_header(struct async_req *subreq)
 		state, state->ev, state->cli->transport,
 		(uint8_t *)(prs_data_p(state->pdu) + RPC_HEADER_LEN),
 		state->prhdr->frag_len - RPC_HEADER_LEN);
-	if (async_req_nomem(subreq, req)) {
+	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
-	subreq->async.fn = get_complete_frag_got_rest;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, get_complete_frag_got_rest, req);
 }
 
-static void get_complete_frag_got_rest(struct async_req *subreq)
+static void get_complete_frag_got_rest(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
 	NTSTATUS status;
 
 	status = rpc_read_recv(subreq);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS get_complete_frag_recv(struct async_req *req)
+static NTSTATUS get_complete_frag_recv(struct tevent_req *req)
 {
-	return async_req_simple_recv_ntstatus(req);
+	return tevent_req_simple_recv_ntstatus(req);
 }
 
 /****************************************************************************
@@ -1037,22 +1034,22 @@ struct cli_api_pipe_state {
 	uint32_t rdata_len;
 };
 
-static void cli_api_pipe_trans_done(struct async_req *subreq);
-static void cli_api_pipe_write_done(struct async_req *subreq);
-static void cli_api_pipe_read_done(struct async_req *subreq);
+static void cli_api_pipe_trans_done(struct tevent_req *subreq);
+static void cli_api_pipe_write_done(struct tevent_req *subreq);
+static void cli_api_pipe_read_done(struct tevent_req *subreq);
 
-static struct async_req *cli_api_pipe_send(TALLOC_CTX *mem_ctx,
-					   struct event_context *ev,
-					   struct rpc_cli_transport *transport,
-					   uint8_t *data, size_t data_len,
-					   uint32_t max_rdata_len)
+static struct tevent_req *cli_api_pipe_send(TALLOC_CTX *mem_ctx,
+					    struct event_context *ev,
+					    struct rpc_cli_transport *transport,
+					    uint8_t *data, size_t data_len,
+					    uint32_t max_rdata_len)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct cli_api_pipe_state *state;
 	NTSTATUS status;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct cli_api_pipe_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct cli_api_pipe_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->ev = ev;
@@ -1072,12 +1069,10 @@ static struct async_req *cli_api_pipe_send(TALLOC_CTX *mem_ctx,
 		subreq = transport->trans_send(state, ev, data, data_len,
 					       max_rdata_len, transport->priv);
 		if (subreq == NULL) {
-			status = NT_STATUS_NO_MEMORY;
-			goto post_status;
+			goto fail;
 		}
-		subreq->async.fn = cli_api_pipe_trans_done;
-		subreq->async.priv = result;
-		return result;
+		tevent_req_set_callback(subreq, cli_api_pipe_trans_done, req);
+		return req;
 	}
 
 	/*
@@ -1089,56 +1084,54 @@ static struct async_req *cli_api_pipe_send(TALLOC_CTX *mem_ctx,
 	if (subreq == NULL) {
 		goto fail;
 	}
-	subreq->async.fn = cli_api_pipe_write_done;
-	subreq->async.priv = result;
-	return result;
+	tevent_req_set_callback(subreq, cli_api_pipe_write_done, req);
+	return req;
 
 	status = NT_STATUS_INVALID_PARAMETER;
 
  post_status:
-	if (async_post_ntstatus(result, ev, status)) {
-		return result;
-	}
+	tevent_req_nterror(req, status);
+	return tevent_req_post(req, ev);
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void cli_api_pipe_trans_done(struct async_req *subreq)
+static void cli_api_pipe_trans_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct cli_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct cli_api_pipe_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_api_pipe_state *state = tevent_req_data(
+		req, struct cli_api_pipe_state);
 	NTSTATUS status;
 
 	status = state->transport->trans_recv(subreq, state, &state->rdata,
 					      &state->rdata_len);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static void cli_api_pipe_write_done(struct async_req *subreq)
+static void cli_api_pipe_write_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct cli_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct cli_api_pipe_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_api_pipe_state *state = tevent_req_data(
+		req, struct cli_api_pipe_state);
 	NTSTATUS status;
 
 	status = rpc_write_recv(subreq);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	state->rdata = TALLOC_ARRAY(state, uint8_t, RPC_HEADER_LEN);
-	if (async_req_nomem(state->rdata, req)) {
+	if (tevent_req_nomem(state->rdata, req)) {
 		return;
 	}
 
@@ -1150,40 +1143,39 @@ static void cli_api_pipe_write_done(struct async_req *subreq)
 	subreq = state->transport->read_send(state, state->ev, state->rdata,
 					     RPC_HEADER_LEN,
 					     state->transport->priv);
-	if (async_req_nomem(subreq, req)) {
+	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
-	subreq->async.fn = cli_api_pipe_read_done;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, cli_api_pipe_read_done, req);
 }
 
-static void cli_api_pipe_read_done(struct async_req *subreq)
+static void cli_api_pipe_read_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct cli_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct cli_api_pipe_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_api_pipe_state *state = tevent_req_data(
+		req, struct cli_api_pipe_state);
 	NTSTATUS status;
 	ssize_t received;
 
 	status = state->transport->read_recv(subreq, &received);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 	state->rdata_len = received;
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS cli_api_pipe_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
+static NTSTATUS cli_api_pipe_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 				  uint8_t **prdata, uint32_t *prdata_len)
 {
-	struct cli_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct cli_api_pipe_state);
+	struct cli_api_pipe_state *state = tevent_req_data(
+		req, struct cli_api_pipe_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 
@@ -1237,22 +1229,22 @@ static int rpc_api_pipe_state_destructor(struct rpc_api_pipe_state *state)
 	return 0;
 }
 
-static void rpc_api_pipe_trans_done(struct async_req *subreq);
-static void rpc_api_pipe_got_pdu(struct async_req *subreq);
+static void rpc_api_pipe_trans_done(struct tevent_req *subreq);
+static void rpc_api_pipe_got_pdu(struct tevent_req *subreq);
 
-static struct async_req *rpc_api_pipe_send(TALLOC_CTX *mem_ctx,
-					   struct event_context *ev,
-					   struct rpc_pipe_client *cli,
-					   prs_struct *data, /* Outgoing PDU */
-					   uint8_t expected_pkt_type)
+static struct tevent_req *rpc_api_pipe_send(TALLOC_CTX *mem_ctx,
+					    struct event_context *ev,
+					    struct rpc_pipe_client *cli,
+					    prs_struct *data, /* Outgoing PDU */
+					    uint8_t expected_pkt_type)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_api_pipe_state *state;
 	uint16_t max_recv_frag;
 	NTSTATUS status;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_api_pipe_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_api_pipe_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->ev = ev;
@@ -1288,27 +1280,25 @@ static struct async_req *rpc_api_pipe_send(TALLOC_CTX *mem_ctx,
 				   (uint8_t *)prs_data_p(data),
 				   prs_offset(data), max_recv_frag);
 	if (subreq == NULL) {
-		status = NT_STATUS_NO_MEMORY;
-		goto post_status;
+		goto fail;
 	}
-	subreq->async.fn = rpc_api_pipe_trans_done;
-	subreq->async.priv = result;
-	return result;
+	tevent_req_set_callback(subreq, rpc_api_pipe_trans_done, req);
+	return req;
 
  post_status:
-	if (async_post_ntstatus(result, ev, status)) {
-		return result;
-	}
-	TALLOC_FREE(result);
+	tevent_req_nterror(req, status);
+	return tevent_req_post(req, ev);
+ fail:
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void rpc_api_pipe_trans_done(struct async_req *subreq)
+static void rpc_api_pipe_trans_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_api_pipe_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_api_pipe_state *state = tevent_req_data(
+		req, struct rpc_api_pipe_state);
 	NTSTATUS status;
 	uint8_t *rdata = NULL;
 	uint32_t rdata_len = 0;
@@ -1318,14 +1308,14 @@ static void rpc_api_pipe_trans_done(struct async_req *subreq)
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
 		DEBUG(5, ("cli_api_pipe failed: %s\n", nt_errstr(status)));
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	if (rdata == NULL) {
 		DEBUG(3,("rpc_api_pipe: %s failed to return data.\n",
 			 rpccli_pipe_txt(debug_ctx(), state->cli)));
-		async_req_done(req);
+		tevent_req_done(req);
 		return;
 	}
 
@@ -1336,7 +1326,7 @@ static void rpc_api_pipe_trans_done(struct async_req *subreq)
 	 */
 	rdata_copy = (char *)memdup(rdata, rdata_len);
 	TALLOC_FREE(rdata);
-	if (async_req_nomem(rdata_copy, req)) {
+	if (tevent_req_nomem(rdata_copy, req)) {
 		return;
 	}
 	prs_give_memory(&state->incoming_frag, rdata_copy, rdata_len, true);
@@ -1344,19 +1334,18 @@ static void rpc_api_pipe_trans_done(struct async_req *subreq)
 	/* Ensure we have enough data for a pdu. */
 	subreq = get_complete_frag_send(state, state->ev, state->cli,
 					&state->rhdr, &state->incoming_frag);
-	if (async_req_nomem(subreq, req)) {
+	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
-	subreq->async.fn = rpc_api_pipe_got_pdu;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, rpc_api_pipe_got_pdu, req);
 }
 
-static void rpc_api_pipe_got_pdu(struct async_req *subreq)
+static void rpc_api_pipe_got_pdu(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_api_pipe_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_api_pipe_state *state = tevent_req_data(
+		req, struct rpc_api_pipe_state);
 	NTSTATUS status;
 	char *rdata = NULL;
 	uint32_t rdata_len = 0;
@@ -1366,7 +1355,7 @@ static void rpc_api_pipe_got_pdu(struct async_req *subreq)
 	if (!NT_STATUS_IS_OK(status)) {
 		DEBUG(5, ("get_complete_frag failed: %s\n",
 			  nt_errstr(status)));
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
@@ -1381,7 +1370,7 @@ static void rpc_api_pipe_got_pdu(struct async_req *subreq)
 		  nt_errstr(status)));
 
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
@@ -1405,13 +1394,13 @@ static void rpc_api_pipe_got_pdu(struct async_req *subreq)
 			 "%s\n",
 			 state->incoming_pdu.bigendian_data?"big":"little",
 			 state->incoming_frag.bigendian_data?"big":"little"));
-		async_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 		return;
 	}
 
 	/* Now copy the data portion out of the pdu into rbuf. */
 	if (!prs_force_grow(&state->incoming_pdu, rdata_len)) {
-		async_req_nterror(req, NT_STATUS_NO_MEMORY);
+		tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
 		return;
 	}
 
@@ -1422,7 +1411,7 @@ static void rpc_api_pipe_got_pdu(struct async_req *subreq)
 	status = cli_pipe_reset_current_pdu(state->cli, &state->rhdr,
 					    &state->incoming_frag);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
@@ -1430,27 +1419,26 @@ static void rpc_api_pipe_got_pdu(struct async_req *subreq)
 		DEBUG(10,("rpc_api_pipe: %s returned %u bytes.\n",
 			  rpccli_pipe_txt(debug_ctx(), state->cli),
 			  (unsigned)prs_data_size(&state->incoming_pdu)));
-		async_req_done(req);
+		tevent_req_done(req);
 		return;
 	}
 
 	subreq = get_complete_frag_send(state, state->ev, state->cli,
 					&state->rhdr, &state->incoming_frag);
-	if (async_req_nomem(subreq, req)) {
+	if (tevent_req_nomem(subreq, req)) {
 		return;
 	}
-	subreq->async.fn = rpc_api_pipe_got_pdu;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, rpc_api_pipe_got_pdu, req);
 }
 
-static NTSTATUS rpc_api_pipe_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
+static NTSTATUS rpc_api_pipe_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 				  prs_struct *reply_pdu)
 {
-	struct rpc_api_pipe_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_api_pipe_state);
+	struct rpc_api_pipe_state *state = tevent_req_data(
+		req, struct rpc_api_pipe_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 
@@ -2043,24 +2031,25 @@ static int rpc_api_pipe_req_state_destructor(struct rpc_api_pipe_req_state *s)
 	return 0;
 }
 
-static void rpc_api_pipe_req_write_done(struct async_req *subreq);
-static void rpc_api_pipe_req_done(struct async_req *subreq);
+static void rpc_api_pipe_req_write_done(struct tevent_req *subreq);
+static void rpc_api_pipe_req_done(struct tevent_req *subreq);
 static NTSTATUS prepare_next_frag(struct rpc_api_pipe_req_state *state,
 				  bool *is_last_frag);
 
-struct async_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
-					struct event_context *ev,
-					struct rpc_pipe_client *cli,
-					uint8_t op_num,
-					prs_struct *req_data)
+struct tevent_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
+					 struct event_context *ev,
+					 struct rpc_pipe_client *cli,
+					 uint8_t op_num,
+					 prs_struct *req_data)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_api_pipe_req_state *state;
 	NTSTATUS status;
 	bool is_last_frag;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_api_pipe_req_state)) {
+	req = tevent_req_create(mem_ctx, &state,
+				struct rpc_api_pipe_req_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->ev = ev;
@@ -2081,8 +2070,7 @@ struct async_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
 
 	if (!prs_init(&state->outgoing_frag, cli->max_xmit_frag,
 		      state, MARSHALL)) {
-		status = NT_STATUS_NO_MEMORY;
-		goto post_status;
+		goto fail;
 	}
 
 	talloc_set_destructor(state, rpc_api_pipe_req_state_destructor);
@@ -2097,30 +2085,27 @@ struct async_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
 					   &state->outgoing_frag,
 					   RPC_RESPONSE);
 		if (subreq == NULL) {
-			status = NT_STATUS_NO_MEMORY;
-			goto post_status;
+			goto fail;
 		}
-		subreq->async.fn = rpc_api_pipe_req_done;
-		subreq->async.priv = result;
+		tevent_req_set_callback(subreq, rpc_api_pipe_req_done, req);
 	} else {
 		subreq = rpc_write_send(
 			state, ev, cli->transport,
 			(uint8_t *)prs_data_p(&state->outgoing_frag),
 			prs_offset(&state->outgoing_frag));
 		if (subreq == NULL) {
-			status = NT_STATUS_NO_MEMORY;
-			goto post_status;
+			goto fail;
 		}
-		subreq->async.fn = rpc_api_pipe_req_write_done;
-		subreq->async.priv = result;
+		tevent_req_set_callback(subreq, rpc_api_pipe_req_write_done,
+					req);
 	}
-	return result;
+	return req;
 
  post_status:
-	if (async_post_ntstatus(result, ev, status)) {
-		return result;
-	}
-	TALLOC_FREE(result);
+	tevent_req_nterror(req, status);
+	return tevent_req_post(req, ev);
+ fail:
+	TALLOC_FREE(req);
 	return NULL;
 }
 
@@ -2209,25 +2194,25 @@ static NTSTATUS prepare_next_frag(struct rpc_api_pipe_req_state *state,
 	return status;
 }
 
-static void rpc_api_pipe_req_write_done(struct async_req *subreq)
+static void rpc_api_pipe_req_write_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_api_pipe_req_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_api_pipe_req_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_api_pipe_req_state *state = tevent_req_data(
+		req, struct rpc_api_pipe_req_state);
 	NTSTATUS status;
 	bool is_last_frag;
 
 	status = rpc_write_recv(subreq);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	status = prepare_next_frag(state, &is_last_frag);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
@@ -2235,50 +2220,49 @@ static void rpc_api_pipe_req_write_done(struct async_req *subreq)
 		subreq = rpc_api_pipe_send(state, state->ev, state->cli,
 					   &state->outgoing_frag,
 					   RPC_RESPONSE);
-		if (async_req_nomem(subreq, req)) {
+		if (tevent_req_nomem(subreq, req)) {
 			return;
 		}
-		subreq->async.fn = rpc_api_pipe_req_done;
-		subreq->async.priv = req;
+		tevent_req_set_callback(subreq, rpc_api_pipe_req_done, req);
 	} else {
 		subreq = rpc_write_send(
 			state, state->ev,
 			state->cli->transport,
 			(uint8_t *)prs_data_p(&state->outgoing_frag),
 			prs_offset(&state->outgoing_frag));
-		if (async_req_nomem(subreq, req)) {
+		if (tevent_req_nomem(subreq, req)) {
 			return;
 		}
-		subreq->async.fn = rpc_api_pipe_req_write_done;
-		subreq->async.priv = req;
+		tevent_req_set_callback(subreq, rpc_api_pipe_req_write_done,
+					req);
 	}
 }
 
-static void rpc_api_pipe_req_done(struct async_req *subreq)
+static void rpc_api_pipe_req_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_api_pipe_req_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_api_pipe_req_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_api_pipe_req_state *state = tevent_req_data(
+		req, struct rpc_api_pipe_req_state);
 	NTSTATUS status;
 
 	status = rpc_api_pipe_recv(subreq, state, &state->reply_pdu);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-NTSTATUS rpc_api_pipe_req_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
+NTSTATUS rpc_api_pipe_req_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 			       prs_struct *reply_pdu)
 {
-	struct rpc_api_pipe_req_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_api_pipe_req_state);
+	struct rpc_api_pipe_req_state *state = tevent_req_data(
+		req, struct rpc_api_pipe_req_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		/*
 		 * We always have to initialize to reply pdu, even if there is
 		 * none. The rpccli_* caller routines expect this.
@@ -2306,7 +2290,7 @@ NTSTATUS rpc_api_pipe_req(TALLOC_CTX *mem_ctx, struct rpc_pipe_client *cli,
 {
 	TALLOC_CTX *frame = talloc_stackframe();
 	struct event_context *ev;
-	struct async_req *req;
+	struct tevent_req *req;
 	NTSTATUS status = NT_STATUS_NO_MEMORY;
 
 	ev = event_context_init(frame);
@@ -2319,9 +2303,7 @@ NTSTATUS rpc_api_pipe_req(TALLOC_CTX *mem_ctx, struct rpc_pipe_client *cli,
 		goto fail;
 	}
 
-	while (req->state < ASYNC_REQ_DONE) {
-		event_loop_once(ev);
-	}
+	tevent_req_poll(req, ev);
 
 	status = rpc_api_pipe_req_recv(req, mem_ctx, out_data);
  fail:
@@ -2522,29 +2504,29 @@ static int rpc_pipe_bind_state_destructor(struct rpc_pipe_bind_state *state)
 	return 0;
 }
 
-static void rpc_pipe_bind_step_one_done(struct async_req *subreq);
-static NTSTATUS rpc_finish_auth3_bind_send(struct async_req *req,
+static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq);
+static NTSTATUS rpc_finish_auth3_bind_send(struct tevent_req *req,
 					   struct rpc_pipe_bind_state *state,
 					   struct rpc_hdr_info *phdr,
 					   prs_struct *reply_pdu);
-static void rpc_bind_auth3_write_done(struct async_req *subreq);
-static NTSTATUS rpc_finish_spnego_ntlmssp_bind_send(struct async_req *req,
+static void rpc_bind_auth3_write_done(struct tevent_req *subreq);
+static NTSTATUS rpc_finish_spnego_ntlmssp_bind_send(struct tevent_req *req,
 						    struct rpc_pipe_bind_state *state,
 						    struct rpc_hdr_info *phdr,
 						    prs_struct *reply_pdu);
-static void rpc_bind_ntlmssp_api_done(struct async_req *subreq);
+static void rpc_bind_ntlmssp_api_done(struct tevent_req *subreq);
 
-struct async_req *rpc_pipe_bind_send(TALLOC_CTX *mem_ctx,
-				     struct event_context *ev,
-				     struct rpc_pipe_client *cli,
-				     struct cli_pipe_auth_data *auth)
+struct tevent_req *rpc_pipe_bind_send(TALLOC_CTX *mem_ctx,
+				      struct event_context *ev,
+				      struct rpc_pipe_client *cli,
+				      struct cli_pipe_auth_data *auth)
 {
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_pipe_bind_state *state;
 	NTSTATUS status;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_pipe_bind_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_pipe_bind_state);
+	if (req == NULL) {
 		return NULL;
 	}
 
@@ -2577,27 +2559,25 @@ struct async_req *rpc_pipe_bind_send(TALLOC_CTX *mem_ctx,
 	subreq = rpc_api_pipe_send(state, ev, cli, &state->rpc_out,
 				   RPC_BINDACK);
 	if (subreq == NULL) {
-		status = NT_STATUS_NO_MEMORY;
-		goto post_status;
+		goto fail;
 	}
-	subreq->async.fn = rpc_pipe_bind_step_one_done;
-	subreq->async.priv = result;
-	return result;
+	tevent_req_set_callback(subreq, rpc_pipe_bind_step_one_done, req);
+	return req;
 
  post_status:
-	if (async_post_ntstatus(result, ev, status)) {
-		return result;
-	}
-	TALLOC_FREE(result);
+	tevent_req_nterror(req, status);
+	return tevent_req_post(req, ev);
+ fail:
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
+static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_pipe_bind_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_pipe_bind_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_pipe_bind_state *state = tevent_req_data(
+		req, struct rpc_pipe_bind_state);
 	prs_struct reply_pdu;
 	struct rpc_hdr_info hdr;
 	struct rpc_hdr_ba_info hdr_ba;
@@ -2609,7 +2589,7 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 		DEBUG(3, ("rpc_pipe_bind: %s bind request returned %s\n",
 			  rpccli_pipe_txt(debug_ctx(), state->cli),
 			  nt_errstr(status)));
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
@@ -2617,7 +2597,7 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 	if (!smb_io_rpc_hdr("hdr", &hdr, &reply_pdu, 0)) {
 		DEBUG(0, ("rpc_pipe_bind: failed to unmarshall RPC_HDR.\n"));
 		prs_mem_free(&reply_pdu);
-		async_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
+		tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
 		return;
 	}
 
@@ -2625,14 +2605,14 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 		DEBUG(0, ("rpc_pipe_bind: Failed to unmarshall "
 			  "RPC_HDR_BA.\n"));
 		prs_mem_free(&reply_pdu);
-		async_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
+		tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
 		return;
 	}
 
 	if (!check_bind_response(&hdr_ba, &state->cli->transfer_syntax)) {
 		DEBUG(2, ("rpc_pipe_bind: check_bind_response failed.\n"));
 		prs_mem_free(&reply_pdu);
-		async_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
+		tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
 		return;
 	}
 
@@ -2649,7 +2629,7 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 	case PIPE_AUTH_TYPE_SCHANNEL:
 		/* Bind complete. */
 		prs_mem_free(&reply_pdu);
-		async_req_done(req);
+		tevent_req_done(req);
 		break;
 
 	case PIPE_AUTH_TYPE_NTLMSSP:
@@ -2658,7 +2638,7 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 						    &reply_pdu);
 		prs_mem_free(&reply_pdu);
 		if (!NT_STATUS_IS_OK(status)) {
-			async_req_nterror(req, status);
+			tevent_req_nterror(req, status);
 		}
 		break;
 
@@ -2668,7 +2648,7 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 							     &reply_pdu);
 		prs_mem_free(&reply_pdu);
 		if (!NT_STATUS_IS_OK(status)) {
-			async_req_nterror(req, status);
+			tevent_req_nterror(req, status);
 		}
 		break;
 
@@ -2679,11 +2659,11 @@ static void rpc_pipe_bind_step_one_done(struct async_req *subreq)
 		DEBUG(0,("cli_finish_bind_auth: unknown auth type %u\n",
 			 (unsigned int)state->cli->auth->auth_type));
 		prs_mem_free(&reply_pdu);
-		async_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+		tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
 	}
 }
 
-static NTSTATUS rpc_finish_auth3_bind_send(struct async_req *req,
+static NTSTATUS rpc_finish_auth3_bind_send(struct tevent_req *req,
 					   struct rpc_pipe_bind_state *state,
 					   struct rpc_hdr_info *phdr,
 					   prs_struct *reply_pdu)
@@ -2691,7 +2671,7 @@ static NTSTATUS rpc_finish_auth3_bind_send(struct async_req *req,
 	DATA_BLOB server_response = data_blob_null;
 	DATA_BLOB client_reply = data_blob_null;
 	struct rpc_hdr_auth_info hdr_auth;
-	struct async_req *subreq;
+	struct tevent_req *subreq;
 	NTSTATUS status;
 
 	if ((phdr->auth_len == 0)
@@ -2742,27 +2722,26 @@ static NTSTATUS rpc_finish_auth3_bind_send(struct async_req *req,
 	if (subreq == NULL) {
 		return NT_STATUS_NO_MEMORY;
 	}
-	subreq->async.fn = rpc_bind_auth3_write_done;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, rpc_bind_auth3_write_done, req);
 	return NT_STATUS_OK;
 }
 
-static void rpc_bind_auth3_write_done(struct async_req *subreq)
+static void rpc_bind_auth3_write_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
 	NTSTATUS status;
 
 	status = rpc_write_recv(subreq);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_finish_spnego_ntlmssp_bind_send(struct async_req *req,
+static NTSTATUS rpc_finish_spnego_ntlmssp_bind_send(struct tevent_req *req,
 						    struct rpc_pipe_bind_state *state,
 						    struct rpc_hdr_info *phdr,
 						    prs_struct *reply_pdu)
@@ -2772,7 +2751,7 @@ static NTSTATUS rpc_finish_spnego_ntlmssp_bind_send(struct async_req *req,
 	DATA_BLOB client_reply = data_blob_null;
 	DATA_BLOB tmp_blob = data_blob_null;
 	RPC_HDR_AUTH hdr_auth;
-	struct async_req *subreq;
+	struct tevent_req *subreq;
 	NTSTATUS status;
 
 	if ((phdr->auth_len == 0)
@@ -2850,17 +2829,16 @@ static NTSTATUS rpc_finish_spnego_ntlmssp_bind_send(struct async_req *req,
 	if (subreq == NULL) {
 		return NT_STATUS_NO_MEMORY;
 	}
-	subreq->async.fn = rpc_bind_ntlmssp_api_done;
-	subreq->async.priv = req;
+	tevent_req_set_callback(subreq, rpc_bind_ntlmssp_api_done, req);
 	return NT_STATUS_OK;
 }
 
-static void rpc_bind_ntlmssp_api_done(struct async_req *subreq)
+static void rpc_bind_ntlmssp_api_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_pipe_bind_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_pipe_bind_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_pipe_bind_state *state = tevent_req_data(
+		req, struct rpc_pipe_bind_state);
 	DATA_BLOB server_spnego_response = data_blob_null;
 	DATA_BLOB tmp_blob = data_blob_null;
 	prs_struct reply_pdu;
@@ -2871,7 +2849,7 @@ static void rpc_bind_ntlmssp_api_done(struct async_req *subreq)
 	status = rpc_api_pipe_recv(subreq, talloc_tos(), &reply_pdu);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
@@ -2879,19 +2857,19 @@ static void rpc_bind_ntlmssp_api_done(struct async_req *subreq)
 	if (!smb_io_rpc_hdr("rpc_hdr   ", &hdr, &reply_pdu, 0)) {
 		DEBUG(0, ("rpc_finish_spnego_ntlmssp_bind: Failed to "
 			  "unmarshall RPC_HDR.\n"));
-		async_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
+		tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
 		return;
 	}
 
 	if (!prs_set_offset(
 		    &reply_pdu,
 		    hdr.frag_len - hdr.auth_len - RPC_HDR_AUTH_LEN)) {
-		async_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 		return;
 	}
 
 	if (!smb_io_rpc_hdr_auth("hdr_auth", &hdr_auth, &reply_pdu, 0)) {
-		async_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 		return;
 	}
 
@@ -2904,7 +2882,7 @@ static void rpc_bind_ntlmssp_api_done(struct async_req *subreq)
 					OID_NTLMSSP, &tmp_blob)) {
 		data_blob_free(&server_spnego_response);
 		data_blob_free(&tmp_blob);
-		async_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 		return;
 	}
 
@@ -2913,12 +2891,12 @@ static void rpc_bind_ntlmssp_api_done(struct async_req *subreq)
 
 	DEBUG(5,("rpc_finish_spnego_ntlmssp_bind: alter context request to "
 		 "%s.\n", rpccli_pipe_txt(debug_ctx(), state->cli)));
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-NTSTATUS rpc_pipe_bind_recv(struct async_req *req)
+NTSTATUS rpc_pipe_bind_recv(struct tevent_req *req)
 {
-	return async_req_simple_recv_ntstatus(req);
+	return tevent_req_simple_recv_ntstatus(req);
 }
 
 NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
@@ -2926,7 +2904,7 @@ NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
 {
 	TALLOC_CTX *frame = talloc_stackframe();
 	struct event_context *ev;
-	struct async_req *req;
+	struct tevent_req *req;
 	NTSTATUS status = NT_STATUS_NO_MEMORY;
 
 	ev = event_context_init(frame);
@@ -2939,9 +2917,7 @@ NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
 		goto fail;
 	}
 
-	while (req->state < ASYNC_REQ_DONE) {
-		event_loop_once(ev);
-	}
+	tevent_req_poll(req, ev);
 
 	status = rpc_pipe_bind_recv(req);
  fail:
diff --git a/source3/rpc_client/rpc_transport_np.c b/source3/rpc_client/rpc_transport_np.c
index 80ff384046..8b45cb4e9c 100644
--- a/source3/rpc_client/rpc_transport_np.c
+++ b/source3/rpc_client/rpc_transport_np.c
@@ -51,18 +51,19 @@ struct rpc_np_write_state {
 
 static void rpc_np_write_done(struct async_req *subreq);
 
-static struct async_req *rpc_np_write_send(TALLOC_CTX *mem_ctx,
-					   struct event_context *ev,
-					   const uint8_t *data, size_t size,
-					   void *priv)
+static struct tevent_req *rpc_np_write_send(TALLOC_CTX *mem_ctx,
+					    struct event_context *ev,
+					    const uint8_t *data, size_t size,
+					    void *priv)
 {
 	struct rpc_transport_np_state *np_transport = talloc_get_type_abort(
 		priv, struct rpc_transport_np_state);
-	struct async_req *result, *subreq;
+	struct tevent_req *req;
+	struct async_req *subreq;
 	struct rpc_np_write_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_np_write_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_np_write_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->size = size;
@@ -75,37 +76,37 @@ static struct async_req *rpc_np_write_send(TALLOC_CTX *mem_ctx,
 		goto fail;
 	}
 	subreq->async.fn = rpc_np_write_done;
-	subreq->async.priv = result;
-	return result;
+	subreq->async.priv = req;
+	return req;
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
 static void rpc_np_write_done(struct async_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_np_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_np_write_state);
+	struct tevent_req *req = talloc_get_type_abort(
+		subreq->async.priv, struct tevent_req);
+	struct rpc_np_write_state *state = tevent_req_data(
+		req, struct rpc_np_write_state);
 	NTSTATUS status;
 
 	status = cli_write_andx_recv(subreq, &state->written);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_np_write_recv(struct async_req *req, ssize_t *pwritten)
+static NTSTATUS rpc_np_write_recv(struct tevent_req *req, ssize_t *pwritten)
 {
-	struct rpc_np_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_np_write_state);
+	struct rpc_np_write_state *state = tevent_req_data(
+		req, struct rpc_np_write_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*pwritten = state->written;
@@ -120,18 +121,19 @@ struct rpc_np_read_state {
 
 static void rpc_np_read_done(struct async_req *subreq);
 
-static struct async_req *rpc_np_read_send(TALLOC_CTX *mem_ctx,
-					  struct event_context *ev,
-					  uint8_t *data, size_t size,
-					  void *priv)
+static struct tevent_req *rpc_np_read_send(TALLOC_CTX *mem_ctx,
+					   struct event_context *ev,
+					   uint8_t *data, size_t size,
+					   void *priv)
 {
 	struct rpc_transport_np_state *np_transport = talloc_get_type_abort(
 		priv, struct rpc_transport_np_state);
-	struct async_req *result, *subreq;
+	struct tevent_req *req;
+	struct async_req *subreq;
 	struct rpc_np_read_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_np_read_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_np_read_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->data = data;
@@ -143,19 +145,19 @@ static struct async_req *rpc_np_read_send(TALLOC_CTX *mem_ctx,
 		goto fail;
 	}
 	subreq->async.fn = rpc_np_read_done;
-	subreq->async.priv = result;
-	return result;
+	subreq->async.priv = req;
+	return req;
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
 static void rpc_np_read_done(struct async_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_np_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_np_read_state);
+	struct tevent_req *req = talloc_get_type_abort(
+		subreq->async.priv, struct tevent_req);
+	struct rpc_np_read_state *state = tevent_req_data(
+		req, struct rpc_np_read_state);
 	NTSTATUS status;
 	uint8_t *rcvbuf;
 
@@ -169,27 +171,27 @@ static void rpc_np_read_done(struct async_req *subreq)
 	}
 	if (!NT_STATUS_IS_OK(status)) {
 		TALLOC_FREE(subreq);
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
 
 	if (state->received > state->size) {
 		TALLOC_FREE(subreq);
-		async_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+		tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
 		return;
 	}
 
 	memcpy(state->data, rcvbuf, state->received);
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_np_read_recv(struct async_req *req, ssize_t *preceived)
+static NTSTATUS rpc_np_read_recv(struct tevent_req *req, ssize_t *preceived)
 {
-	struct rpc_np_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_np_read_state);
+	struct rpc_np_read_state *state = tevent_req_data(
+		req, struct rpc_np_read_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*preceived = state->received;
@@ -204,19 +206,20 @@ struct rpc_np_trans_state {
 
 static void rpc_np_trans_done(struct async_req *subreq);
 
-static struct async_req *rpc_np_trans_send(TALLOC_CTX *mem_ctx,
-					   struct event_context *ev,
-					   uint8_t *data, size_t data_len,
-					   uint32_t max_rdata_len,
-					   void *priv)
+static struct tevent_req *rpc_np_trans_send(TALLOC_CTX *mem_ctx,
+					    struct event_context *ev,
+					    uint8_t *data, size_t data_len,
+					    uint32_t max_rdata_len,
+					    void *priv)
 {
 	struct rpc_transport_np_state *np_transport = talloc_get_type_abort(
 		priv, struct rpc_transport_np_state);
-	struct async_req *result, *subreq;
+	struct tevent_req *req;
+	struct async_req *subreq;
 	struct rpc_np_trans_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_np_trans_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_np_trans_state);
+	if (req == NULL) {
 		return NULL;
 	}
 
@@ -231,40 +234,40 @@ static struct async_req *rpc_np_trans_send(TALLOC_CTX *mem_ctx,
 		goto fail;
 	}
 	subreq->async.fn = rpc_np_trans_done;
-	subreq->async.priv = result;
-	return result;
+	subreq->async.priv = req;
+	return req;
 
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
 static void rpc_np_trans_done(struct async_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_np_trans_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_np_trans_state);
+	struct tevent_req *req = talloc_get_type_abort(
+		subreq->async.priv, struct tevent_req);
+	struct rpc_np_trans_state *state = tevent_req_data(
+		req, struct rpc_np_trans_state);
 	NTSTATUS status;
 
 	status = cli_trans_recv(subreq, state, NULL, NULL, NULL, NULL,
 				&state->rdata, &state->rdata_len);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_np_trans_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
+static NTSTATUS rpc_np_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 				  uint8_t **prdata, uint32_t *prdata_len)
 {
-	struct rpc_np_trans_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_np_trans_state);
+	struct rpc_np_trans_state *state = tevent_req_data(
+		req, struct rpc_np_trans_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*prdata = talloc_move(mem_ctx, &state->rdata);
diff --git a/source3/rpc_client/rpc_transport_smbd.c b/source3/rpc_client/rpc_transport_smbd.c
index bf4aa65dae..bde8d04208 100644
--- a/source3/rpc_client/rpc_transport_smbd.c
+++ b/source3/rpc_client/rpc_transport_smbd.c
@@ -432,20 +432,20 @@ struct rpc_smbd_write_state {
 	ssize_t written;
 };
 
-static void rpc_smbd_write_done(struct async_req *subreq);
+static void rpc_smbd_write_done(struct tevent_req *subreq);
 
-static struct async_req *rpc_smbd_write_send(TALLOC_CTX *mem_ctx,
-					     struct event_context *ev,
-					     const uint8_t *data, size_t size,
-					     void *priv)
+static struct tevent_req *rpc_smbd_write_send(TALLOC_CTX *mem_ctx,
+					      struct event_context *ev,
+					      const uint8_t *data, size_t size,
+					      void *priv)
 {
 	struct rpc_transport_smbd_state *transp = talloc_get_type_abort(
 		priv, struct rpc_transport_smbd_state);
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_smbd_write_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_smbd_write_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_smbd_write_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->sub_transp = transp->sub_transp;
@@ -460,40 +460,38 @@ static struct async_req *rpc_smbd_write_send(TALLOC_CTX *mem_ctx,
 			 rpc_cli_smbd_stdout_reader, transp->conn) == NULL) {
 		goto fail;
 	}
-
-	subreq->async.fn = rpc_smbd_write_done;
-	subreq->async.priv = result;
-	return result;
+	tevent_req_set_callback(subreq, rpc_smbd_write_done, req);
+	return req;
 
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void rpc_smbd_write_done(struct async_req *subreq)
+static void rpc_smbd_write_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_smbd_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_smbd_write_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_smbd_write_state *state = tevent_req_data(
+		req, struct rpc_smbd_write_state);
 	NTSTATUS status;
 
 	status = state->sub_transp->write_recv(subreq, &state->written);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_smbd_write_recv(struct async_req *req, ssize_t *pwritten)
+static NTSTATUS rpc_smbd_write_recv(struct tevent_req *req, ssize_t *pwritten)
 {
-	struct rpc_smbd_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_smbd_write_state);
+	struct rpc_smbd_write_state *state = tevent_req_data(
+		req, struct rpc_smbd_write_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*pwritten = state->written;
@@ -505,20 +503,20 @@ struct rpc_smbd_read_state {
 	ssize_t received;
 };
 
-static void rpc_smbd_read_done(struct async_req *subreq);
+static void rpc_smbd_read_done(struct tevent_req *subreq);
 
-static struct async_req *rpc_smbd_read_send(TALLOC_CTX *mem_ctx,
-					    struct event_context *ev,
-					    uint8_t *data, size_t size,
-					    void *priv)
+static struct tevent_req *rpc_smbd_read_send(TALLOC_CTX *mem_ctx,
+					     struct event_context *ev,
+					     uint8_t *data, size_t size,
+					     void *priv)
 {
 	struct rpc_transport_smbd_state *transp = talloc_get_type_abort(
 		priv, struct rpc_transport_smbd_state);
-	struct async_req *result, *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_smbd_read_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_smbd_read_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_smbd_read_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	state->sub_transp = transp->sub_transp;
@@ -533,40 +531,37 @@ static struct async_req *rpc_smbd_read_send(TALLOC_CTX *mem_ctx,
 			 rpc_cli_smbd_stdout_reader, transp->conn) == NULL) {
 		goto fail;
 	}
-
-	subreq->async.fn = rpc_smbd_read_done;
-	subreq->async.priv = result;
-	return result;
-
+	tevent_req_set_callback(subreq, rpc_smbd_read_done, req);
+	return req;
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
-static void rpc_smbd_read_done(struct async_req *subreq)
+static void rpc_smbd_read_done(struct tevent_req *subreq)
 {
-	struct async_req *req = talloc_get_type_abort(
-		subreq->async.priv, struct async_req);
-	struct rpc_smbd_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_smbd_read_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_smbd_read_state *state = tevent_req_data(
+		req, struct rpc_smbd_read_state);
 	NTSTATUS status;
 
 	status = state->sub_transp->read_recv(subreq, &state->received);
 	TALLOC_FREE(subreq);
 	if (!NT_STATUS_IS_OK(status)) {
-		async_req_nterror(req, status);
+		tevent_req_nterror(req, status);
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_smbd_read_recv(struct async_req *req, ssize_t *preceived)
+static NTSTATUS rpc_smbd_read_recv(struct tevent_req *req, ssize_t *preceived)
 {
-	struct rpc_smbd_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_smbd_read_state);
+	struct rpc_smbd_read_state *state = tevent_req_data(
+		req, struct rpc_smbd_read_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*preceived = state->received;
diff --git a/source3/rpc_client/rpc_transport_sock.c b/source3/rpc_client/rpc_transport_sock.c
index b1d9d8fbe1..570d792c9c 100644
--- a/source3/rpc_client/rpc_transport_sock.c
+++ b/source3/rpc_client/rpc_transport_sock.c
@@ -41,19 +41,18 @@ struct rpc_sock_read_state {
 
 static void rpc_sock_read_done(struct tevent_req *subreq);
 
-static struct async_req *rpc_sock_read_send(TALLOC_CTX *mem_ctx,
-					    struct event_context *ev,
-					    uint8_t *data, size_t size,
-					    void *priv)
+static struct tevent_req *rpc_sock_read_send(TALLOC_CTX *mem_ctx,
+					     struct event_context *ev,
+					     uint8_t *data, size_t size,
+					     void *priv)
 {
 	struct rpc_transport_sock_state *sock_transp = talloc_get_type_abort(
 		priv, struct rpc_transport_sock_state);
-	struct async_req *result;
-	struct tevent_req *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_sock_read_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_sock_read_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_sock_read_state);
+	if (req == NULL) {
 		return NULL;
 	}
 
@@ -61,36 +60,36 @@ static struct async_req *rpc_sock_read_send(TALLOC_CTX *mem_ctx,
 	if (subreq == NULL) {
 		goto fail;
 	}
-	tevent_req_set_callback(subreq, rpc_sock_read_done, result);
-	return result;
+	tevent_req_set_callback(subreq, rpc_sock_read_done, req);
+	return req;
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
 static void rpc_sock_read_done(struct tevent_req *subreq)
 {
-	struct async_req *req =
-		tevent_req_callback_data(subreq, struct async_req);
-	struct rpc_sock_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_sock_read_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_sock_read_state *state = tevent_req_data(
+		req, struct rpc_sock_read_state);
 	int err;
 
 	state->received = async_recv_recv(subreq, &err);
 	if (state->received == -1) {
-		async_req_nterror(req, map_nt_error_from_unix(err));
+		tevent_req_nterror(req, map_nt_error_from_unix(err));
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_sock_read_recv(struct async_req *req, ssize_t *preceived)
+static NTSTATUS rpc_sock_read_recv(struct tevent_req *req, ssize_t *preceived)
 {
-	struct rpc_sock_read_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_sock_read_state);
+	struct rpc_sock_read_state *state = tevent_req_data(
+		req, struct rpc_sock_read_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*preceived = state->received;
@@ -103,55 +102,54 @@ struct rpc_sock_write_state {
 
 static void rpc_sock_write_done(struct tevent_req *subreq);
 
-static struct async_req *rpc_sock_write_send(TALLOC_CTX *mem_ctx,
-					     struct event_context *ev,
-					     const uint8_t *data, size_t size,
-					     void *priv)
+static struct tevent_req *rpc_sock_write_send(TALLOC_CTX *mem_ctx,
+					      struct event_context *ev,
+					      const uint8_t *data, size_t size,
+					      void *priv)
 {
 	struct rpc_transport_sock_state *sock_transp = talloc_get_type_abort(
 		priv, struct rpc_transport_sock_state);
-	struct async_req *result;
-	struct tevent_req *subreq;
+	struct tevent_req *req, *subreq;
 	struct rpc_sock_write_state *state;
 
-	if (!async_req_setup(mem_ctx, &result, &state,
-			     struct rpc_sock_write_state)) {
+	req = tevent_req_create(mem_ctx, &state, struct rpc_sock_write_state);
+	if (req == NULL) {
 		return NULL;
 	}
 	subreq = async_send_send(state, ev, sock_transp->fd, data, size, 0);
 	if (subreq == NULL) {
 		goto fail;
 	}
-	tevent_req_set_callback(subreq, rpc_sock_write_done, result);
-	return result;
+	tevent_req_set_callback(subreq, rpc_sock_write_done, req);
+	return req;
  fail:
-	TALLOC_FREE(result);
+	TALLOC_FREE(req);
 	return NULL;
 }
 
 static void rpc_sock_write_done(struct tevent_req *subreq)
 {
-	struct async_req *req =
-		tevent_req_callback_data(subreq, struct async_req);
-	struct rpc_sock_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_sock_write_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpc_sock_write_state *state = tevent_req_data(
+		req, struct rpc_sock_write_state);
 	int err;
 
 	state->sent = async_send_recv(subreq, &err);
 	if (state->sent == -1) {
-		async_req_nterror(req, map_nt_error_from_unix(err));
+		tevent_req_nterror(req, map_nt_error_from_unix(err));
 		return;
 	}
-	async_req_done(req);
+	tevent_req_done(req);
 }
 
-static NTSTATUS rpc_sock_write_recv(struct async_req *req, ssize_t *psent)
+static NTSTATUS rpc_sock_write_recv(struct tevent_req *req, ssize_t *psent)
 {
-	struct rpc_sock_write_state *state = talloc_get_type_abort(
-		req->private_data, struct rpc_sock_write_state);
+	struct rpc_sock_write_state *state = tevent_req_data(
+		req, struct rpc_sock_write_state);
 	NTSTATUS status;
 
-	if (async_req_is_nterror(req, &status)) {
+	if (tevent_req_is_nterror(req, &status)) {
 		return status;
 	}
 	*psent = state->sent;
diff --git a/source3/rpc_parse/parse_misc.c b/source3/rpc_parse/parse_misc.c
index 8b4135a1e8..1ea4ecf46f 100644
--- a/source3/rpc_parse/parse_misc.c
+++ b/source3/rpc_parse/parse_misc.c
@@ -101,44 +101,6 @@ bool make_systemtime(SYSTEMTIME *systime, struct tm *unixtime)
 }
 
 /*******************************************************************
- Reads or writes a DOM_SID structure.
-********************************************************************/
-
-bool smb_io_dom_sid(const char *desc, DOM_SID *sid, prs_struct *ps, int depth)
-{
-	int i;
-
-	if (sid == NULL)
-		return False;
-
-	prs_debug(ps, depth, desc, "smb_io_dom_sid");
-	depth++;
-
-	if(!prs_uint8 ("sid_rev_num", ps, depth, &sid->sid_rev_num))
-		return False;
-
-	if(!prs_uint8 ("num_auths  ", ps, depth, (uint8 *)&sid->num_auths))
-		return False;
-
-	for (i = 0; i < 6; i++)
-	{
-		fstring tmp;
-		slprintf(tmp, sizeof(tmp) - 1, "id_auth[%d] ", i);
-		if(!prs_uint8 (tmp, ps, depth, &sid->id_auth[i]))
-			return False;
-	}
-
-	/* oops! XXXX should really issue a warning here... */
-	if (sid->num_auths > MAXSUBAUTHS)
-		sid->num_auths = MAXSUBAUTHS;
-
-	if(!prs_uint32s(False, "sub_auths ", ps, depth, sid->sub_auths, sid->num_auths))
-		return False;
-
-	return True;
-}
-
-/*******************************************************************
  Reads or writes a struct GUID
 ********************************************************************/
 
@@ -167,25 +129,6 @@ bool smb_io_uuid(const char *desc, struct GUID *uuid,
 }
 
 /*******************************************************************
- Inits a UNISTR structure.
-********************************************************************/
-
-void init_unistr(UNISTR *str, const char *buf)
-{
-	size_t len;
-
-	if (buf == NULL) {
-		str->buffer = NULL;
-		return;
-	}
-
-	len = rpcstr_push_talloc(talloc_tos(), &str->buffer, buf);
-	if (len == (size_t)-1) {
-		str->buffer = NULL;
-	}
-}
-
-/*******************************************************************
  Inits a UNISTR2 structure.
 ********************************************************************/
 
diff --git a/source3/rpc_parse/parse_sec.c b/source3/rpc_parse/parse_sec.c
deleted file mode 100644
index 91d8591a05..0000000000
--- a/source3/rpc_parse/parse_sec.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/* 
- *  Unix SMB/Netbios implementation.
- *  Version 1.9.
- *  RPC Pipe client / server routines
- *  Copyright (C) Andrew Tridgell              1992-1998,
- *  Copyright (C) Jeremy R. Allison            1995-2005.
- *  Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
- *  Copyright (C) Paul Ashton                  1997-1998.
- *  
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 3 of the License, or
- *  (at your option) any later version.
- *  
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *  
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "includes.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_RPC_PARSE
-
-/*******************************************************************
- Reads or writes a SEC_ACE structure.
-********************************************************************/
-
-static bool sec_io_ace(const char *desc, SEC_ACE *psa, prs_struct *ps,
-		       int depth)
-{
-	uint32 old_offset;
-	uint32 offset_ace_size;
-	uint8 type;
-
-	if (psa == NULL)
-		return False;
-
-	prs_debug(ps, depth, desc, "sec_io_ace");
-	depth++;
-	
-	old_offset = prs_offset(ps);
-
-	if (MARSHALLING(ps)) {
-		type = (uint8)psa->type;
-	}
-
-	if(!prs_uint8("type ", ps, depth, &type))
-		return False;
-
-	if (UNMARSHALLING(ps)) {
-		psa->type = (enum security_ace_type)type;
-	}
-
-	if(!prs_uint8("flags", ps, depth, &psa->flags))
-		return False;
-
-	if(!prs_uint16_pre("size ", ps, depth, &psa->size, &offset_ace_size))
-		return False;
-
-	if(!prs_uint32("access_mask", ps, depth, &psa->access_mask))
-		return False;
-
-	/* check whether object access is present */
-	if (!sec_ace_object(psa->type)) {
-		if (!smb_io_dom_sid("trustee  ", &psa->trustee , ps, depth))
-			return False;
-	} else {
-		if (!prs_uint32("obj_flags", ps, depth, &psa->object.object.flags))
-			return False;
-
-		if (psa->object.object.flags & SEC_ACE_OBJECT_TYPE_PRESENT)
-			if (!smb_io_uuid("obj_guid", &psa->object.object.type.type, ps,depth))
-				return False;
-
-		if (psa->object.object.flags & SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT)
-			if (!smb_io_uuid("inh_guid", &psa->object.object.inherited_type.inherited_type, ps,depth))
-				return False;
-
-		if(!smb_io_dom_sid("trustee  ", &psa->trustee , ps, depth))
-			return False;
-	}
-
-	/* Theorectically an ACE can have a size greater than the
-	   sum of its components. When marshalling, pad with extra null bytes up to the
-	   correct size. */
-
-	if (MARSHALLING(ps) && (psa->size > prs_offset(ps) - old_offset)) {
-		uint32 extra_len = psa->size - (prs_offset(ps) - old_offset);
-		uint32 i;
-		uint8 c = 0;
-
-		for (i = 0; i < extra_len; i++) {
-			if (!prs_uint8("ace extra space", ps, depth, &c))
-				return False;
-		}
-	}
-
-	if(!prs_uint16_post("size ", ps, depth, &psa->size, offset_ace_size, old_offset))
-		return False;
-
-	return True;
-}
-
-/*******************************************************************
- Reads or writes a SEC_ACL structure.  
-
- First of the xx_io_xx functions that allocates its data structures
- for you as it reads them.
-********************************************************************/
-
-static bool sec_io_acl(const char *desc, SEC_ACL **ppsa, prs_struct *ps,
-		       int depth)
-{
-	unsigned int i;
-	uint32 old_offset;
-	uint32 offset_acl_size;
-	SEC_ACL *psa;
-	uint16 revision;
-
-	/*
-	 * Note that the size is always a multiple of 4 bytes due to the
-	 * nature of the data structure.  Therefore the prs_align() calls
-	 * have been removed as they through us off when doing two-layer
-	 * marshalling such as in the printing code (RPC_BUFFER).  --jerry
-	 */
-
-	if (ppsa == NULL)
-		return False;
-
-	psa = *ppsa;
-
-	if(UNMARSHALLING(ps) && psa == NULL) {
-		/*
-		 * This is a read and we must allocate the stuct to read into.
-		 */
-		if((psa = PRS_ALLOC_MEM(ps, SEC_ACL, 1)) == NULL)
-			return False;
-		*ppsa = psa;
-	}
-
-	prs_debug(ps, depth, desc, "sec_io_acl");
-	depth++;
-	
-	old_offset = prs_offset(ps);
-
-	if (MARSHALLING(ps)) {
-		revision = (uint16)psa->revision;
-	}
-
-	if(!prs_uint16("revision", ps, depth, &revision))
-		return False;
-
-	if (UNMARSHALLING(ps)) {
-		psa->revision = (enum security_acl_revision)revision;
-	}
-
-	if(!prs_uint16_pre("size     ", ps, depth, &psa->size, &offset_acl_size))
-		return False;
-
-	if(!prs_uint32("num_aces ", ps, depth, &psa->num_aces))
-		return False;
-
-	if (UNMARSHALLING(ps)) {
-		if (psa->num_aces) {
-			if((psa->aces = PRS_ALLOC_MEM(ps, SEC_ACE, psa->num_aces)) == NULL)
-				return False;
-		} else {
-			psa->aces = NULL;
-		}
-	}
-
-	for (i = 0; i < psa->num_aces; i++) {
-		fstring tmp;
-		slprintf(tmp, sizeof(tmp)-1, "ace_list[%02d]: ", i);
-		if(!sec_io_ace(tmp, &psa->aces[i], ps, depth))
-			return False;
-	}
-
-	/* Theorectically an ACL can have a size greater than the
-	   sum of its components. When marshalling, pad with extra null bytes up to the
-	   correct size. */
-
-	if (MARSHALLING(ps) && (psa->size > prs_offset(ps) - old_offset)) {
-		uint32 extra_len = psa->size - (prs_offset(ps) - old_offset);
-		uint8 c = 0;
-
-		for (i = 0; i < extra_len; i++) {
-			if (!prs_uint8("acl extra space", ps, depth, &c))
-				return False;
-		}
-	}
-
-	if(!prs_uint16_post("size     ", ps, depth, &psa->size, offset_acl_size, old_offset))
-		return False;
-
-	return True;
-}
-
-/*******************************************************************
- Reads or writes a SEC_DESC structure.
- If reading and the *ppsd = NULL, allocates the structure.
-********************************************************************/
-
-bool sec_io_desc(const char *desc, SEC_DESC **ppsd, prs_struct *ps, int depth)
-{
-	uint32 old_offset;
-	uint32 max_offset = 0; /* after we're done, move offset to end */
-	uint32 tmp_offset = 0;
-	uint32 off_sacl, off_dacl, off_owner_sid, off_grp_sid;
-	uint16 revision;
-
-	SEC_DESC *psd;
-
-	if (ppsd == NULL)
-		return False;
-
-	psd = *ppsd;
-
-	if (psd == NULL) {
-		if(UNMARSHALLING(ps)) {
-			if((psd = PRS_ALLOC_MEM(ps,SEC_DESC,1)) == NULL)
-				return False;
-			*ppsd = psd;
-		} else {
-			/* Marshalling - just ignore. */
-			return True;
-		}
-	}
-
-	prs_debug(ps, depth, desc, "sec_io_desc");
-	depth++;
-
-	/* start of security descriptor stored for back-calc offset purposes */
-	old_offset = prs_offset(ps);
-
-	if (MARSHALLING(ps)) {
-		revision = (uint16)psd->revision;
-	}
-
-	if(!prs_uint16("revision", ps, depth, &revision))
-		return False;
-
-	if (UNMARSHALLING(ps)) {
-		psd->revision = (enum security_descriptor_revision)revision;
-	}
-
-	if(!prs_uint16("type     ", ps, depth, &psd->type))
-		return False;
-
-	if (MARSHALLING(ps)) {
-		uint32 offset = SEC_DESC_HEADER_SIZE;
-
-		/*
-		 * Work out the offsets here, as we write it out.
-		 */
-
-		if (psd->sacl != NULL) {
-			off_sacl = offset;
-			offset += psd->sacl->size;
-		} else {
-			off_sacl = 0;
-		}
-
-		if (psd->dacl != NULL) {
-			off_dacl = offset;
-			offset += psd->dacl->size;
-		} else {
-			off_dacl = 0;
-		}
-
-		if (psd->owner_sid != NULL) {
-			off_owner_sid = offset;
-			offset += ndr_size_dom_sid(psd->owner_sid, NULL, 0);
-		} else {
-			off_owner_sid = 0;
-		}
-
-		if (psd->group_sid != NULL) {
-			off_grp_sid = offset;
-			offset += ndr_size_dom_sid(psd->group_sid, NULL, 0);
-		} else {
-			off_grp_sid = 0;
-		}
-	}
-
-	if(!prs_uint32("off_owner_sid", ps, depth, &off_owner_sid))
-		return False;
-
-	if(!prs_uint32("off_grp_sid  ", ps, depth, &off_grp_sid))
-		return False;
-
-	if(!prs_uint32("off_sacl     ", ps, depth, &off_sacl))
-		return False;
-
-	if(!prs_uint32("off_dacl     ", ps, depth, &off_dacl))
-		return False;
-
-	max_offset = MAX(max_offset, prs_offset(ps));
-
-	if (off_owner_sid != 0) {
-
-		tmp_offset = prs_offset(ps);
-		if(!prs_set_offset(ps, old_offset + off_owner_sid))
-			return False;
-
-		if (UNMARSHALLING(ps)) {
-			/* reading */
-			if((psd->owner_sid = PRS_ALLOC_MEM(ps,DOM_SID,1)) == NULL)
-				return False;
-		}
-
-		if(!smb_io_dom_sid("owner_sid ", psd->owner_sid , ps, depth))
-			return False;
-
-		max_offset = MAX(max_offset, prs_offset(ps));
-
-		if (!prs_set_offset(ps,tmp_offset))
-			return False;
-	}
-
-	if (psd->group_sid != 0) {
-
-		tmp_offset = prs_offset(ps);
-		if(!prs_set_offset(ps, old_offset + off_grp_sid))
-			return False;
-
-		if (UNMARSHALLING(ps)) {
-			/* reading */
-			if((psd->group_sid = PRS_ALLOC_MEM(ps,DOM_SID,1)) == NULL)
-				return False;
-		}
-
-		if(!smb_io_dom_sid("grp_sid", psd->group_sid, ps, depth))
-			return False;
-			
-		max_offset = MAX(max_offset, prs_offset(ps));
-
-		if (!prs_set_offset(ps,tmp_offset))
-			return False;
-	}
-
-	if ((psd->type & SEC_DESC_SACL_PRESENT) && off_sacl) {
-		tmp_offset = prs_offset(ps);
-		if(!prs_set_offset(ps, old_offset + off_sacl))
-			return False;
-		if(!sec_io_acl("sacl", &psd->sacl, ps, depth))
-			return False;
-		max_offset = MAX(max_offset, prs_offset(ps));
-		if (!prs_set_offset(ps,tmp_offset))
-			return False;
-	}
-
-	if ((psd->type & SEC_DESC_DACL_PRESENT) && off_dacl != 0) {
-		tmp_offset = prs_offset(ps);
-		if(!prs_set_offset(ps, old_offset + off_dacl))
-			return False;
-		if(!sec_io_acl("dacl", &psd->dacl, ps, depth))
-			return False;
-		max_offset = MAX(max_offset, prs_offset(ps));
-		if (!prs_set_offset(ps,tmp_offset))
-			return False;
-	}
-
-	if(!prs_set_offset(ps, max_offset))
-		return False;
-
-	return True;
-}
-
-/*******************************************************************
- Reads or writes a SEC_DESC_BUF structure.
-********************************************************************/
-
-bool sec_io_desc_buf(const char *desc, SEC_DESC_BUF **ppsdb, prs_struct *ps, int depth)
-{
-	uint32 off_len;
-	uint32 off_max_len;
-	uint32 old_offset;
-	uint32 size;
-	uint32 len;
-	SEC_DESC_BUF *psdb;
-	uint32 ptr;
-
-	if (ppsdb == NULL)
-		return False;
-
-	psdb = *ppsdb;
-
-	if (UNMARSHALLING(ps) && psdb == NULL) {
-		if((psdb = PRS_ALLOC_MEM(ps,SEC_DESC_BUF,1)) == NULL)
-			return False;
-		*ppsdb = psdb;
-	}
-
-	prs_debug(ps, depth, desc, "sec_io_desc_buf");
-	depth++;
-
-	if(!prs_align(ps))
-		return False;
-	
-	if(!prs_uint32_pre("max_len", ps, depth, &psdb->sd_size, &off_max_len))
-		return False;
-
-	ptr = 1;
-	if(!prs_uint32    ("ptr  ", ps, depth, &ptr))
-		return False;
-
-	len = ndr_size_security_descriptor(psdb->sd, NULL, 0);
-	if(!prs_uint32_pre("len    ", ps, depth, &len, &off_len))
-		return False;
-
-	old_offset = prs_offset(ps);
-
-	/* reading, length is non-zero; writing, descriptor is non-NULL */
-	if ((UNMARSHALLING(ps) && psdb->sd_size != 0) || (MARSHALLING(ps) && psdb->sd != NULL)) {
-		if(!sec_io_desc("sec   ", &psdb->sd, ps, depth))
-			return False;
-	}
-
-	if(!prs_align(ps))
-		return False;
-	
-	size = prs_offset(ps) - old_offset;
-	if(!prs_uint32_post("max_len", ps, depth, &psdb->sd_size, off_max_len, size == 0 ? psdb->sd_size : size))
-		return False;
-
-	if(!prs_uint32_post("len    ", ps, depth, &len, off_len, size))
-		return False;
-
-	return True;
-}
diff --git a/source3/rpc_server/srv_lsa_nt.c b/source3/rpc_server/srv_lsa_nt.c
index ed54c3a86e..5fdcaf2d4a 100644
--- a/source3/rpc_server/srv_lsa_nt.c
+++ b/source3/rpc_server/srv_lsa_nt.c
@@ -827,6 +827,10 @@ NTSTATUS _lsa_LookupSids(pipes_struct *p,
 					   &names,
 					   &mapped_count);
 
+	if (NT_STATUS_IS_ERR(status)) {
+		return status;
+	}
+
 	/* Convert from lsa_TranslatedName2 to lsa_TranslatedName */
 	names_out = TALLOC_ARRAY(p->mem_ctx, struct lsa_TranslatedName,
 				 num_sids);
diff --git a/source3/rpc_server/srv_spoolss_nt.c b/source3/rpc_server/srv_spoolss_nt.c
index b66f48aa29..15c137a88c 100644
--- a/source3/rpc_server/srv_spoolss_nt.c
+++ b/source3/rpc_server/srv_spoolss_nt.c
@@ -393,7 +393,7 @@ static bool get_printer_snum(pipes_struct *p, struct policy_handle *hnd,
  Check if it's \\server or \\server\printer
 ****************************************************************************/
 
-static bool set_printer_hnd_printertype(Printer_entry *Printer, char *handlename)
+static bool set_printer_hnd_printertype(Printer_entry *Printer, const char *handlename)
 {
 	DEBUG(3,("Setting printer type=%s\n", handlename));
 
@@ -423,7 +423,7 @@ static bool set_printer_hnd_printertype(Printer_entry *Printer, char *handlename
  XcvDataPort() interface.
 ****************************************************************************/
 
-static bool set_printer_hnd_name(Printer_entry *Printer, char *handlename)
+static bool set_printer_hnd_name(Printer_entry *Printer, const char *handlename)
 {
 	int snum;
 	int n_services=lp_numservices();
@@ -434,9 +434,10 @@ static bool set_printer_hnd_name(Printer_entry *Printer, char *handlename)
 	NT_PRINTER_INFO_LEVEL *printer = NULL;
 	WERROR result;
 
-	DEBUG(4,("Setting printer name=%s (len=%lu)\n", handlename, (unsigned long)strlen(handlename)));
+	DEBUG(4,("Setting printer name=%s (len=%lu)\n", handlename,
+		(unsigned long)strlen(handlename)));
 
-	aprinter = handlename;
+	aprinter = CONST_DISCARD(char *, handlename);
 	if ( *handlename == '\\' ) {
 		servername = canon_servername(handlename);
 		if ( (aprinter = strchr_m( servername, '\\' )) != NULL ) {
@@ -556,7 +557,7 @@ static bool set_printer_hnd_name(Printer_entry *Printer, char *handlename)
  ****************************************************************************/
 
 static bool open_printer_hnd(pipes_struct *p, struct policy_handle *hnd,
-			     char *name, uint32_t access_granted)
+			     const char *name, uint32_t access_granted)
 {
 	Printer_entry *new_printer;
 
@@ -1247,7 +1248,7 @@ static void receive_notify2_message_list(struct messaging_context *msg,
  driver
  ********************************************************************/
 
-static bool srv_spoolss_drv_upgrade_printer(char* drivername)
+static bool srv_spoolss_drv_upgrade_printer(const char *drivername)
 {
 	int len = strlen(drivername);
 
@@ -1545,20 +1546,19 @@ bool convert_devicemode(const char *printername,
 WERROR _spoolss_OpenPrinterEx(pipes_struct *p,
 			      struct spoolss_OpenPrinterEx *r)
 {
-	char *name = CONST_DISCARD(char *, r->in.printername);
 	int snum;
 	Printer_entry *Printer=NULL;
 
-	if (!name) {
+	if (!r->in.printername) {
 		return WERR_INVALID_PARAM;
 	}
 
 	/* some sanity check because you can open a printer or a print server */
 	/* aka: \\server\printer or \\server */
 
-	DEBUGADD(3,("checking name: %s\n",name));
+	DEBUGADD(3,("checking name: %s\n", r->in.printername));
 
-	if (!open_printer_hnd(p, r->out.handle, name, 0)) {
+	if (!open_printer_hnd(p, r->out.handle, r->in.printername, 0)) {
 		ZERO_STRUCTP(r->out.handle);
 		return WERR_INVALID_PARAM;
 	}
@@ -1566,7 +1566,7 @@ WERROR _spoolss_OpenPrinterEx(pipes_struct *p,
 	Printer = find_printer_index_by_hnd(p, r->out.handle);
 	if ( !Printer ) {
 		DEBUG(0,("_spoolss_OpenPrinterEx: logic error.  Can't find printer "
-			"handle we created for printer %s\n", name ));
+			"handle we created for printer %s\n", r->in.printername));
 		close_printer_handle(p, r->out.handle);
 		ZERO_STRUCTP(r->out.handle);
 		return WERR_INVALID_PARAM;
@@ -2075,7 +2075,7 @@ WERROR _spoolss_DeletePrinter(pipes_struct *p,
  * long architecture string
  ******************************************************************/
 
-static int get_version_id (char * arch)
+static int get_version_id(const char *arch)
 {
 	int i;
 	struct table_node archi_table[]= {
@@ -2106,8 +2106,6 @@ static int get_version_id (char * arch)
 WERROR _spoolss_DeletePrinterDriver(pipes_struct *p,
 				    struct spoolss_DeletePrinterDriver *r)
 {
-	char *driver;
-	char *arch;
 	NT_PRINTER_DRIVER_INFO_LEVEL	info;
 	NT_PRINTER_DRIVER_INFO_LEVEL	info_win2k;
 	int				version;
@@ -2128,24 +2126,26 @@ WERROR _spoolss_DeletePrinterDriver(pipes_struct *p,
 		return WERR_ACCESS_DENIED;
 	}
 
-	driver = CONST_DISCARD(char *, r->in.driver);
-	arch   = CONST_DISCARD(char *, r->in.architecture);
-
 	/* check that we have a valid driver name first */
 
-	if ((version=get_version_id(arch)) == -1)
+	if ((version = get_version_id(r->in.architecture)) == -1)
 		return WERR_INVALID_ENVIRONMENT;
 
 	ZERO_STRUCT(info);
 	ZERO_STRUCT(info_win2k);
 
-	if (!W_ERROR_IS_OK(get_a_printer_driver(&info, 3, driver, arch, version)))
+	if (!W_ERROR_IS_OK(get_a_printer_driver(&info, 3, r->in.driver,
+						r->in.architecture,
+						version)))
 	{
 		/* try for Win2k driver if "Windows NT x86" */
 
 		if ( version == 2 ) {
 			version = 3;
-			if (!W_ERROR_IS_OK(get_a_printer_driver(&info, 3, driver, arch, version))) {
+			if (!W_ERROR_IS_OK(get_a_printer_driver(&info, 3,
+								r->in.driver,
+								r->in.architecture,
+								version))) {
 				status = WERR_UNKNOWN_PRINTER_DRIVER;
 				goto done;
 			}
@@ -2165,7 +2165,9 @@ WERROR _spoolss_DeletePrinterDriver(pipes_struct *p,
 
 	if ( version == 2 )
 	{
-		if (W_ERROR_IS_OK(get_a_printer_driver(&info_win2k, 3, driver, arch, 3)))
+		if (W_ERROR_IS_OK(get_a_printer_driver(&info_win2k, 3,
+						       r->in.driver,
+						       r->in.architecture, 3)))
 		{
 			/* if we get to here, we now have 2 driver info structures to remove */
 			/* remove the Win2k driver first*/
@@ -2203,8 +2205,6 @@ done:
 WERROR _spoolss_DeletePrinterDriverEx(pipes_struct *p,
 				      struct spoolss_DeletePrinterDriverEx *r)
 {
-	char *driver;
-	char *arch;
 	NT_PRINTER_DRIVER_INFO_LEVEL	info;
 	NT_PRINTER_DRIVER_INFO_LEVEL	info_win2k;
 	int				version;
@@ -2225,11 +2225,8 @@ WERROR _spoolss_DeletePrinterDriverEx(pipes_struct *p,
 		return WERR_ACCESS_DENIED;
 	}
 
-	driver = CONST_DISCARD(char *, r->in.driver);
-	arch   = CONST_DISCARD(char *, r->in.architecture);
-
 	/* check that we have a valid driver name first */
-	if ((version=get_version_id(arch)) == -1) {
+	if ((version = get_version_id(r->in.architecture)) == -1) {
 		/* this is what NT returns */
 		return WERR_INVALID_ENVIRONMENT;
 	}
@@ -2240,7 +2237,8 @@ WERROR _spoolss_DeletePrinterDriverEx(pipes_struct *p,
 	ZERO_STRUCT(info);
 	ZERO_STRUCT(info_win2k);
 
-	status = get_a_printer_driver(&info, 3, driver, arch, version);
+	status = get_a_printer_driver(&info, 3, r->in.driver,
+				      r->in.architecture, version);
 
 	if ( !W_ERROR_IS_OK(status) )
 	{
@@ -2256,7 +2254,9 @@ WERROR _spoolss_DeletePrinterDriverEx(pipes_struct *p,
 		/* try for Win2k driver if "Windows NT x86" */
 
 		version = 3;
-		if (!W_ERROR_IS_OK(get_a_printer_driver(&info, 3, driver, arch, version))) {
+		if (!W_ERROR_IS_OK(get_a_printer_driver(&info, 3, r->in.driver,
+							r->in.architecture,
+							version))) {
 			status = WERR_UNKNOWN_PRINTER_DRIVER;
 			goto done;
 		}
@@ -2293,7 +2293,9 @@ WERROR _spoolss_DeletePrinterDriverEx(pipes_struct *p,
 	/* also check for W32X86/3 if necessary; maybe we already have? */
 
 	if ( (version == 2) && ((r->in.delete_flags & DPD_DELETE_SPECIFIC_VERSION) != DPD_DELETE_SPECIFIC_VERSION)  ) {
-		if (W_ERROR_IS_OK(get_a_printer_driver(&info_win2k, 3, driver, arch, 3)))
+		if (W_ERROR_IS_OK(get_a_printer_driver(&info_win2k, 3,
+						       r->in.driver,
+						       r->in.architecture, 3)))
 		{
 
 			if ( delete_files && printer_driver_files_in_use(info_win2k.info_3) & (r->in.delete_flags & DPD_DELETE_ALL_FILES) ) {
@@ -4202,61 +4204,88 @@ static bool snum_is_shared_printer(int snum)
  Spoolss_enumprinters.
 ********************************************************************/
 
-static WERROR enum_all_printers_info_1(TALLOC_CTX *mem_ctx,
-				       uint32_t flags,
-				       union spoolss_PrinterInfo **info_p,
-				       uint32_t *count)
+static WERROR enum_all_printers_info_level(TALLOC_CTX *mem_ctx,
+					   uint32_t level,
+					   uint32_t flags,
+					   union spoolss_PrinterInfo **info_p,
+					   uint32_t *count_p)
 {
 	int snum;
 	int n_services = lp_numservices();
 	union spoolss_PrinterInfo *info = NULL;
+	uint32_t count = 0;
 	WERROR result = WERR_OK;
 
-	DEBUG(4,("enum_all_printers_info_1\n"));
-
-	*count = 0;
+	*count_p = 0;
+	*info_p = NULL;
 
-	for (snum=0; snum<n_services; snum++) {
+	for (snum = 0; snum < n_services; snum++) {
 
 		NT_PRINTER_INFO_LEVEL *ntprinter = NULL;
-		struct spoolss_PrinterInfo1 info1;
 
 		if (!snum_is_shared_printer(snum)) {
 			continue;
 		}
 
-		DEBUG(4,("Found a printer in smb.conf: %s[%x]\n", lp_servicename(snum), snum));
+		DEBUG(4,("Found a printer in smb.conf: %s[%x]\n",
+			lp_servicename(snum), snum));
 
-		result = get_a_printer(NULL, &ntprinter, 2, lp_const_servicename(snum));
-		if (!W_ERROR_IS_OK(result)) {
-			continue;
+		info = TALLOC_REALLOC_ARRAY(mem_ctx, info,
+					    union spoolss_PrinterInfo,
+					    count + 1);
+		if (!info) {
+			result = WERR_NOMEM;
+			goto out;
 		}
 
-		result = construct_printer_info1(info, ntprinter, flags, &info1, snum);
-		free_a_printer(&ntprinter,2);
+		result = get_a_printer(NULL, &ntprinter, 2,
+				       lp_const_servicename(snum));
 		if (!W_ERROR_IS_OK(result)) {
-			continue;
+			goto out;
 		}
 
-		info = TALLOC_REALLOC_ARRAY(mem_ctx, info,
-					    union spoolss_PrinterInfo,
-					    *count + 1);
-		if (!info) {
-			DEBUG(2,("enum_all_printers_info_1: failed to enlarge printers buffer!\n"));
-			result = WERR_NOMEM;
+		switch (level) {
+		case 0:
+			result = construct_printer_info0(info, ntprinter,
+							 &info[count].info0, snum);
+			break;
+		case 1:
+			result = construct_printer_info1(info, ntprinter, flags,
+							 &info[count].info1, snum);
+			break;
+		case 2:
+			result = construct_printer_info2(info, ntprinter,
+							 &info[count].info2, snum);
+			break;
+		case 4:
+			result = construct_printer_info4(info, ntprinter,
+							 &info[count].info4, snum);
+			break;
+		case 5:
+			result = construct_printer_info5(info, ntprinter,
+							 &info[count].info5, snum);
+			break;
+
+		default:
+			result = WERR_UNKNOWN_LEVEL;
+			free_a_printer(&ntprinter, 2);
 			goto out;
 		}
 
-		DEBUG(4,("ReAlloced memory for [%d] PRINTER_INFO_1\n", *count));
+		free_a_printer(&ntprinter, 2);
+		if (!W_ERROR_IS_OK(result)) {
+			goto out;
+		}
 
-		info[*count].info1 = info1;
-		(*count)++;
+		count++;
 	}
 
+	*count_p = count;
+	*info_p = info;
+
  out:
 	if (!W_ERROR_IS_OK(result)) {
 		TALLOC_FREE(info);
-		*count = 0;
 		return result;
 	}
 
@@ -4266,6 +4295,35 @@ static WERROR enum_all_printers_info_1(TALLOC_CTX *mem_ctx,
 }
 
 /********************************************************************
+ * handle enumeration of printers at level 0
+ ********************************************************************/
+
+static WERROR enumprinters_level0(TALLOC_CTX *mem_ctx,
+				  uint32_t flags,
+				  const char *servername,
+				  union spoolss_PrinterInfo **info,
+				  uint32_t *count)
+{
+	DEBUG(4,("enum_all_printers_info_0\n"));
+
+	return enum_all_printers_info_level(mem_ctx, 0, flags, info, count);
+}
+
+
+/********************************************************************
+********************************************************************/
+
+static WERROR enum_all_printers_info_1(TALLOC_CTX *mem_ctx,
+				       uint32_t flags,
+				       union spoolss_PrinterInfo **info,
+				       uint32_t *count)
+{
+	DEBUG(4,("enum_all_printers_info_1\n"));
+
+	return enum_all_printers_info_level(mem_ctx, 1, flags, info, count);
+}
+
+/********************************************************************
  enum_all_printers_info_1_local.
 *********************************************************************/
 
@@ -4341,64 +4399,12 @@ static WERROR enum_all_printers_info_1_network(TALLOC_CTX *mem_ctx,
  ********************************************************************/
 
 static WERROR enum_all_printers_info_2(TALLOC_CTX *mem_ctx,
-				       union spoolss_PrinterInfo **info_p,
+				       union spoolss_PrinterInfo **info,
 				       uint32_t *count)
 {
-	int snum;
-	int n_services = lp_numservices();
-	union spoolss_PrinterInfo *info = NULL;
-	WERROR result = WERR_OK;
+	DEBUG(4,("enum_all_printers_info_2\n"));
 
-	*count = 0;
-
-	for (snum=0; snum<n_services; snum++) {
-
-		struct spoolss_PrinterInfo2 info2;
-		NT_PRINTER_INFO_LEVEL *ntprinter = NULL;
-
-		if (!snum_is_shared_printer(snum)) {
-			continue;
-		}
-
-		DEBUG(4,("Found a printer in smb.conf: %s[%x]\n", lp_servicename(snum), snum));
-
-		result = get_a_printer(NULL, &ntprinter, 2, lp_const_servicename(snum));
-		if (!W_ERROR_IS_OK(result)) {
-			continue;
-		}
-
-		result = construct_printer_info2(info, ntprinter, &info2, snum);
-		free_a_printer(&ntprinter, 2);
-		if (!W_ERROR_IS_OK(result)) {
-			continue;
-		}
-
-		info = TALLOC_REALLOC_ARRAY(mem_ctx, info,
-					    union spoolss_PrinterInfo,
-					    *count + 1);
-		if (!info) {
-			DEBUG(2,("enum_all_printers_info_2: failed to enlarge printers buffer!\n"));
-			result = WERR_NOMEM;
-			goto out;
-		}
-
-		DEBUG(4,("ReAlloced memory for [%d] PRINTER_INFO_2\n", *count + 1));
-
-		info[*count].info2 = info2;
-
-		(*count)++;
-	}
-
- out:
-	if (!W_ERROR_IS_OK(result)) {
-		TALLOC_FREE(info);
-		*count = 0;
-		return result;
-	}
-
-	*info_p = info;
-
-	return WERR_OK;
+	return enum_all_printers_info_level(mem_ctx, 2, 0, info, count);
 }
 
 /********************************************************************
@@ -4458,6 +4464,22 @@ static WERROR enumprinters_level2(TALLOC_CTX *mem_ctx,
 }
 
 /********************************************************************
+ * handle enumeration of printers at level 4
+ ********************************************************************/
+
+static WERROR enumprinters_level4(TALLOC_CTX *mem_ctx,
+				  uint32_t flags,
+				  const char *servername,
+				  union spoolss_PrinterInfo **info,
+				  uint32_t *count)
+{
+	DEBUG(4,("enum_all_printers_info_4\n"));
+
+	return enum_all_printers_info_level(mem_ctx, 4, flags, info, count);
+}
+
+
+/********************************************************************
  * handle enumeration of printers at level 5
  ********************************************************************/
 
@@ -4467,8 +4489,9 @@ static WERROR enumprinters_level5(TALLOC_CTX *mem_ctx,
 				  union spoolss_PrinterInfo **info,
 				  uint32_t *count)
 {
-/*	return enum_all_printers_info_5(mem_ctx, info, offered, needed, count);*/
-	return WERR_OK;
+	DEBUG(4,("enum_all_printers_info_5\n"));
+
+	return enum_all_printers_info_level(mem_ctx, 5, flags, info, count);
 }
 
 /****************************************************************
@@ -4510,6 +4533,10 @@ WERROR _spoolss_EnumPrinters(pipes_struct *p,
 	W_ERROR_HAVE_NO_MEMORY(name);
 
 	switch (r->in.level) {
+	case 0:
+		result = enumprinters_level0(p->mem_ctx, r->in.flags, name,
+					     r->out.info, r->out.count);
+		break;
 	case 1:
 		result = enumprinters_level1(p->mem_ctx, r->in.flags, name,
 					     r->out.info, r->out.count);
@@ -4518,14 +4545,14 @@ WERROR _spoolss_EnumPrinters(pipes_struct *p,
 		result = enumprinters_level2(p->mem_ctx, r->in.flags, name,
 					     r->out.info, r->out.count);
 		break;
+	case 4:
+		result = enumprinters_level4(p->mem_ctx, r->in.flags, name,
+					     r->out.info, r->out.count);
+		break;
 	case 5:
 		result = enumprinters_level5(p->mem_ctx, r->in.flags, name,
 					     r->out.info, r->out.count);
 		break;
-	case 3:
-	case 4:
-		result = WERR_OK; /* ??? */
-		break;
 	default:
 		return WERR_UNKNOWN_LEVEL;
 	}
@@ -7247,7 +7274,7 @@ WERROR _spoolss_AddPrinterDriver(pipes_struct *p,
 	struct spoolss_AddDriverInfoCtr *info = r->in.info_ctr;
 	WERROR err = WERR_OK;
 	NT_PRINTER_DRIVER_INFO_LEVEL driver;
-	fstring driver_name;
+	const char *driver_name = NULL;
 	uint32_t version;
 	const char *fn;
 
@@ -7297,12 +7324,10 @@ WERROR _spoolss_AddPrinterDriver(pipes_struct *p,
 
         switch(level) {
 	case 3:
-		fstrcpy(driver_name,
-			driver.info_3->name ? driver.info_3->name : "");
+		driver_name = driver.info_3->name ? driver.info_3->name : "";
 		break;
 	case 6:
-		fstrcpy(driver_name,
-			driver.info_6->name ?  driver.info_6->name : "");
+		driver_name = driver.info_6->name ? driver.info_6->name : "";
 		break;
         }
 
diff --git a/source3/rpcclient/cmd_spoolss.c b/source3/rpcclient/cmd_spoolss.c
index 18c0790569..c9c457b364 100644
--- a/source3/rpcclient/cmd_spoolss.c
+++ b/source3/rpcclient/cmd_spoolss.c
@@ -257,9 +257,10 @@ static WERROR cmd_spoolss_enum_printers(struct rpc_pipe_client *cli,
 	union spoolss_PrinterInfo *info;
 	uint32_t		i, count;
 	const char *name;
+	uint32_t flags = PRINTER_ENUM_LOCAL;
 
-	if (argc > 3) {
-		printf("Usage: %s [level] [name]\n", argv[0]);
+	if (argc > 4) {
+		printf("Usage: %s [level] [name] [flags]\n", argv[0]);
 		return WERR_OK;
 	}
 
@@ -267,14 +268,18 @@ static WERROR cmd_spoolss_enum_printers(struct rpc_pipe_client *cli,
 		level = atoi(argv[1]);
 	}
 
-	if (argc == 3) {
+	if (argc >= 3) {
 		name = argv[2];
 	} else {
 		name = cli->srv_name_slash;
 	}
 
+	if (argc == 4) {
+		flags = atoi(argv[3]);
+	}
+
 	result = rpccli_spoolss_enumprinters(cli, mem_ctx,
-					     PRINTER_ENUM_LOCAL,
+					     flags,
 					     name,
 					     level,
 					     0,
diff --git a/source3/samba4.mk b/source3/samba4.mk
index 7e7690aadf..3f661bdd14 100644
--- a/source3/samba4.mk
+++ b/source3/samba4.mk
@@ -225,32 +225,32 @@ test4-%::
 valgrindtest4:: valgrindtest-all
 
 valgrindtest4-quick:: all
-	SMBD_VALGRIND="xterm -n server -e $(selftestdir)/valgrind_run $(LD_LIBPATH_OVERRIDE)" \
+	SAMBA_VALGRIND="xterm -n server -e $(selftestdir)/valgrind_run $(LD_LIBPATH_OVERRIDE)" \
 	VALGRIND="valgrind -q --num-callers=30 --log-file=${selftest_prefix}/valgrind.log" \
 	$(SELFTEST4) $(SELFTEST4_QUICK_OPTS) --immediate --socket-wrapper $(TESTS)
 
 valgrindtest4-all:: everything
-	SMBD_VALGRIND="xterm -n server -e $(selftestdir)/valgrind_run $(LD_LIBPATH_OVERRIDE)" \
+	SAMBA_VALGRIND="xterm -n server -e $(selftestdir)/valgrind_run $(LD_LIBPATH_OVERRIDE)" \
 	VALGRIND="valgrind -q --num-callers=30 --log-file=${selftest_prefix}/valgrind.log" \
 	$(SELFTEST4) $(SELFTEST4_NOSLOW_OPTS) --immediate --socket-wrapper $(TESTS)
 
 valgrindtest4-env:: everything
-	SMBD_VALGRIND="xterm -n server -e $(selftestdir)/valgrind_run $(LD_LIBPATH_OVERRIDE)" \
+	SAMBA_VALGRIND="xterm -n server -e $(selftestdir)/valgrind_run $(LD_LIBPATH_OVERRIDE)" \
 	VALGRIND="valgrind -q --num-callers=30 --log-file=${selftest_prefix}/valgrind.log" \
 	$(SELFTEST4) $(SELFTEST4_NOSLOW_OPTS) --socket-wrapper --testenv
 
 gdbtest4:: gdbtest4-all
 
 gdbtest4-quick:: all
-	SMBD_VALGRIND="xterm -n server -e $(selftestdir)/gdb_run $(LD_LIBPATH_OVERRIDE)" \
+	SAMBA_VALGRIND="xterm -n server -e $(selftestdir)/gdb_run $(LD_LIBPATH_OVERRIDE)" \
 	$(SELFTEST4) $(SELFTEST4_QUICK_OPTS) --immediate --socket-wrapper $(TESTS)
 
 gdbtest4-all:: everything
-	SMBD_VALGRIND="xterm -n server -e $(selftestdir)/gdb_run $(LD_LIBPATH_OVERRIDE)" \
+	SAMBA_VALGRIND="xterm -n server -e $(selftestdir)/gdb_run $(LD_LIBPATH_OVERRIDE)" \
 	$(SELFTEST4) $(SELFTEST4_NOSLOW_OPTS) --immediate --socket-wrapper $(TESTS)
 
 gdbtest4-env:: everything
-	SMBD_VALGRIND="xterm -n server -e $(selftestdir)/gdb_run $(LD_LIBPATH_OVERRIDE)" \
+	SAMBA_VALGRIND="xterm -n server -e $(selftestdir)/gdb_run $(LD_LIBPATH_OVERRIDE)" \
 	$(SELFTEST4) $(SELFTEST4_NOSLOW_OPTS) --socket-wrapper --testenv
 
 plugins: $(PLUGINS)
diff --git a/source3/selftest/tests.sh b/source3/selftest/tests.sh
index f88dab0337..ea59f0ee8e 100755
--- a/source3/selftest/tests.sh
+++ b/source3/selftest/tests.sh
@@ -120,6 +120,10 @@ plantest "blackbox.smbclient_s3.plain" dc BINDIR="$BINDIR" script/tests/test_smb
 plantest "blackbox.smbclient_s3.plain member creds" member BINDIR="$BINDIR" script/tests/test_smbclient_s3.sh \$SERVER \$SERVER_IP \$SERVER\\\\\$USERNAME \$PASSWORD
 plantest "blackbox.smbclient_s3.plain domain creds" member BINDIR="$BINDIR" script/tests/test_smbclient_s3.sh \$SERVER \$SERVER_IP \$DOMAIN\\\\\$DC_USERNAME \$DC_PASSWORD
 
+# sign, only the member server allows signing
+plantest "blackbox.smbclient_s3.sign member creds" member BINDIR="$BINDIR" script/tests/test_smbclient_s3.sh \$SERVER \$SERVER_IP \$SERVER\\\\\$USERNAME \$PASSWORD "--signing=required"
+plantest "blackbox.smbclient_s3.sign domain creds" member BINDIR="$BINDIR" script/tests/test_smbclient_s3.sh \$SERVER \$SERVER_IP \$DOMAIN\\\\\$DC_USERNAME \$DC_PASSWORD "--signing=required"
+
 # encrypted
 plantest "blackbox.smbclient_s3.crypt" dc BINDIR="$BINDIR" script/tests/test_smbclient_s3.sh \$SERVER \$SERVER_IP \$USERNAME \$PASSWORD "-e"
 
diff --git a/source3/smbd/aio.c b/source3/smbd/aio.c
index cfa4b430eb..77616be48c 100644
--- a/source3/smbd/aio.c
+++ b/source3/smbd/aio.c
@@ -197,7 +197,6 @@ bool schedule_aio_read_and_X(connection_struct *conn,
 		  fsp->fsp_name, (double)startpos, (unsigned int)smb_maxcnt,
 		  (unsigned int)aio_ex->req->mid ));
 
-	srv_defer_sign_response(aio_ex->req->mid);
 	outstanding_aio_calls++;
 	return True;
 }
@@ -303,6 +302,7 @@ bool schedule_aio_write_and_X(connection_struct *conn,
                 SSVAL(aio_ex->outbuf,smb_vwv4,(numtowrite>>16)&1);
 		show_msg(aio_ex->outbuf);
 		if (!srv_send_smb(smbd_server_fd(),aio_ex->outbuf,
+				true, aio_ex->req->seqnum+1,
 				IS_CONN_ENCRYPTED(fsp->conn),
 				&req->pcd)) {
 			exit_server_cleanly("handle_aio_write: srv_send_smb "
@@ -310,8 +310,6 @@ bool schedule_aio_write_and_X(connection_struct *conn,
 		}
 		DEBUG(10,("schedule_aio_write_and_X: scheduled aio_write "
 			  "behind for file %s\n", fsp->fsp_name ));
-	} else {
-		srv_defer_sign_response(aio_ex->req->mid);
 	}
 	outstanding_aio_calls++;
 
@@ -347,7 +345,6 @@ static int handle_aio_read_complete(struct aio_extra *aio_ex)
 		/* If errno is ECANCELED then don't return anything to the
 		 * client. */
 		if (errno == ECANCELED) {
-			srv_cancel_sign_response(aio_ex->req->mid, false);
 			return 0;
 		}
 
@@ -378,6 +375,7 @@ static int handle_aio_read_complete(struct aio_extra *aio_ex)
 	smb_setlen(outbuf,outsize - 4);
 	show_msg(outbuf);
 	if (!srv_send_smb(smbd_server_fd(),outbuf,
+			true, aio_ex->req->seqnum+1,
 			IS_CONN_ENCRYPTED(aio_ex->fsp->conn), NULL)) {
 		exit_server_cleanly("handle_aio_read_complete: srv_send_smb "
 				    "failed.");
@@ -441,7 +439,6 @@ static int handle_aio_write_complete(struct aio_extra *aio_ex)
 		/* If errno is ECANCELED then don't return anything to the
 		 * client. */
 		if (errno == ECANCELED) {
-			srv_cancel_sign_response(aio_ex->req->mid, false);
 			return 0;
 		}
 
@@ -475,7 +472,9 @@ static int handle_aio_write_complete(struct aio_extra *aio_ex)
 	}
 
 	show_msg(outbuf);
-	if (!srv_send_smb(smbd_server_fd(),outbuf,IS_CONN_ENCRYPTED(fsp->conn),
+	if (!srv_send_smb(smbd_server_fd(),outbuf,
+			  true, aio_ex->req->seqnum+1,
+			  IS_CONN_ENCRYPTED(fsp->conn),
 			  NULL)) {
 		exit_server_cleanly("handle_aio_write: srv_send_smb failed.");
 	}
@@ -534,7 +533,6 @@ void smbd_aio_complete_mid(unsigned int mid)
 	if (!aio_ex) {
 		DEBUG(3,("smbd_aio_complete_mid: Can't find record to "
 			 "match mid %u.\n", mid));
-		srv_cancel_sign_response(mid, false);
 		return;
 	}
 
@@ -544,7 +542,6 @@ void smbd_aio_complete_mid(unsigned int mid)
 		 * ignore. */
 		DEBUG( 3,( "smbd_aio_complete_mid: file closed whilst "
 			   "aio outstanding (mid[%u]).\n", mid));
-		srv_cancel_sign_response(mid, false);
 		return;
 	}
 
diff --git a/source3/smbd/avahi_register.c b/source3/smbd/avahi_register.c
new file mode 100644
index 0000000000..1903b0ef96
--- /dev/null
+++ b/source3/smbd/avahi_register.c
@@ -0,0 +1,170 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * Register _smb._tcp with avahi
+ *
+ * Copyright (C) Volker Lendecke 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+
+#include <avahi-client/client.h>
+#include <avahi-client/publish.h>
+#include <avahi-common/error.h>
+
+struct avahi_state_struct {
+	struct AvahiPoll *poll;
+	AvahiClient *client;
+	AvahiEntryGroup *entry_group;
+	uint16_t port;
+};
+
+static void avahi_entry_group_callback(AvahiEntryGroup *g,
+				       AvahiEntryGroupState status,
+				       void *userdata)
+{
+	struct avahi_state_struct *state = talloc_get_type_abort(
+		userdata, struct avahi_state_struct);
+	int error;
+
+	switch (status) {
+	case AVAHI_ENTRY_GROUP_ESTABLISHED:
+		DEBUG(10, ("avahi_entry_group_callback: "
+			   "AVAHI_ENTRY_GROUP_ESTABLISHED\n"));
+		break;
+	case AVAHI_ENTRY_GROUP_FAILURE:
+		error = avahi_client_errno(state->client);
+
+		DEBUG(10, ("avahi_entry_group_callback: "
+			   "AVAHI_ENTRY_GROUP_FAILURE: %s\n",
+			   avahi_strerror(error)));
+		break;
+	case AVAHI_ENTRY_GROUP_COLLISION:
+		DEBUG(10, ("avahi_entry_group_callback: "
+			   "AVAHI_ENTRY_GROUP_COLLISION\n"));
+		break;
+	case AVAHI_ENTRY_GROUP_UNCOMMITED:
+		DEBUG(10, ("avahi_entry_group_callback: "
+                           "AVAHI_ENTRY_GROUP_UNCOMMITED\n"));
+		break;
+	case AVAHI_ENTRY_GROUP_REGISTERING:
+		DEBUG(10, ("avahi_entry_group_callback: "
+                           "AVAHI_ENTRY_GROUP_REGISTERING\n"));
+		break;
+	}
+}
+
+static void avahi_client_callback(AvahiClient *c, AvahiClientState status,
+				  void *userdata)
+{
+	struct avahi_state_struct *state = talloc_get_type_abort(
+		userdata, struct avahi_state_struct);
+	int error;
+
+	switch (status) {
+	case AVAHI_CLIENT_S_RUNNING:
+		DEBUG(10, ("avahi_client_callback: AVAHI_CLIENT_S_RUNNING\n"));
+
+		state->entry_group = avahi_entry_group_new(
+			c, avahi_entry_group_callback, state);
+		if (state->entry_group == NULL) {
+			error = avahi_client_errno(c);
+			DEBUG(10, ("avahi_entry_group_new failed: %s\n",
+				   avahi_strerror(error)));
+			break;
+		}
+		if (avahi_entry_group_add_service(
+			    state->entry_group, AVAHI_IF_UNSPEC,
+			    AVAHI_PROTO_UNSPEC, 0, global_myname(),
+			    "_smb._tcp", NULL, NULL, state->port, NULL) < 0) {
+			error = avahi_client_errno(c);
+			DEBUG(10, ("avahi_entry_group_add_service failed: "
+				   "%s\n", avahi_strerror(error)));
+			avahi_entry_group_free(state->entry_group);
+			state->entry_group = NULL;
+			break;
+		}
+		if (avahi_entry_group_commit(state->entry_group) < 0) {
+			error = avahi_client_errno(c);
+			DEBUG(10, ("avahi_entry_group_commit failed: "
+				   "%s\n", avahi_strerror(error)));
+			avahi_entry_group_free(state->entry_group);
+			state->entry_group = NULL;
+			break;
+		}
+		break;
+	case AVAHI_CLIENT_FAILURE:
+		error = avahi_client_errno(c);
+
+		DEBUG(10, ("avahi_client_callback: AVAHI_CLIENT_FAILURE: %s\n",
+			   avahi_strerror(error)));
+
+		if (error != AVAHI_ERR_DISCONNECTED) {
+			break;
+		}
+		avahi_client_free(c);
+		state->client = avahi_client_new(state->poll, AVAHI_CLIENT_NO_FAIL,
+						 avahi_client_callback, state,
+						 &error);
+		if (state->client == NULL) {
+			DEBUG(10, ("avahi_client_new failed: %s\n",
+				   avahi_strerror(error)));
+			break;
+		}
+		break;
+	case AVAHI_CLIENT_S_COLLISION:
+		DEBUG(10, ("avahi_client_callback: "
+			   "AVAHI_CLIENT_S_COLLISION\n"));
+		break;
+	case AVAHI_CLIENT_S_REGISTERING:
+		DEBUG(10, ("avahi_client_callback: "
+			   "AVAHI_CLIENT_S_REGISTERING\n"));
+		break;
+	case AVAHI_CLIENT_CONNECTING:
+		DEBUG(10, ("avahi_client_callback: "
+			   "AVAHI_CLIENT_CONNECTING\n"));
+		break;
+	}
+}
+
+void *avahi_start_register(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
+			   uint16_t port)
+{
+	struct avahi_state_struct *state;
+	int error;
+
+	state = talloc(mem_ctx, struct avahi_state_struct);
+	if (state == NULL) {
+		return state;
+	}
+	state->port = port;
+	state->poll = tevent_avahi_poll(state, ev);
+	if (state->poll == NULL) {
+		goto fail;
+	}
+	state->client = avahi_client_new(state->poll, AVAHI_CLIENT_NO_FAIL,
+					 avahi_client_callback, state,
+					 &error);
+	if (state->client == NULL) {
+		DEBUG(10, ("avahi_client_new failed: %s\n",
+			   avahi_strerror(error)));
+		goto fail;
+	}
+	return state;
+
+ fail:
+	TALLOC_FREE(state);
+	return NULL;
+}
diff --git a/source3/smbd/blocking.c b/source3/smbd/blocking.c
index 42849931f3..4c61428692 100644
--- a/source3/smbd/blocking.c
+++ b/source3/smbd/blocking.c
@@ -204,9 +204,6 @@ bool push_blocking_lock_request( struct byte_range_lock *br_lck,
 		(unsigned int)blr->expire_time.tv_usec, lock_timeout,
 		blr->fsp->fnum, blr->fsp->fsp_name ));
 
-	/* Push the MID of this packet on the signing queue. */
-	srv_defer_sign_response(blr->req->mid);
-
 	return True;
 }
 
@@ -260,6 +257,7 @@ static void generic_blocking_lock_error(struct blocking_lock_record *blr, NTSTAT
 
 	reply_nterror(blr->req, status);
 	if (!srv_send_smb(smbd_server_fd(), (char *)blr->req->outbuf,
+			  true, blr->req->seqnum+1,
 			  blr->req->encrypted, NULL)) {
 		exit_server_cleanly("generic_blocking_lock_error: srv_send_smb failed.");
 	}
@@ -343,6 +341,7 @@ static void blocking_lock_reply_error(struct blocking_lock_record *blr, NTSTATUS
 
 		if (!srv_send_smb(smbd_server_fd(),
 				  (char *)blr->req->outbuf,
+				  true, blr->req->seqnum+1,
 				  IS_CONN_ENCRYPTED(blr->fsp->conn),
 				  NULL)) {
 			exit_server_cleanly("blocking_lock_reply_error: "
diff --git a/source3/smbd/globals.h b/source3/smbd/globals.h
index 6ac92ed3dd..b646bc30fd 100644
--- a/source3/smbd/globals.h
+++ b/source3/smbd/globals.h
@@ -202,6 +202,7 @@ extern int num_children;
 struct smbd_server_connection {
 	struct fd_event *fde;
 	uint64_t num_requests;
+	struct smb_signing_state *signing_state;
 };
 extern struct smbd_server_connection *smbd_server_conn;
 
diff --git a/source3/smbd/ipc.c b/source3/smbd/ipc.c
index f20c851297..d39aab4f47 100644
--- a/source3/smbd/ipc.c
+++ b/source3/smbd/ipc.c
@@ -134,6 +134,7 @@ void send_trans_reply(connection_struct *conn,
 
 	show_msg((char *)req->outbuf);
 	if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+			  true, req->seqnum+1,
 			  IS_CONN_ENCRYPTED(conn), &req->pcd)) {
 		exit_server_cleanly("send_trans_reply: srv_send_smb failed.");
 	}
@@ -190,6 +191,7 @@ void send_trans_reply(connection_struct *conn,
 
 		show_msg((char *)req->outbuf);
 		if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+				  true, req->seqnum+1,
 				  IS_CONN_ENCRYPTED(conn), &req->pcd))
 			exit_server_cleanly("send_trans_reply: srv_send_smb "
 					    "failed.");
@@ -296,6 +298,7 @@ static void api_dcerpc_cmd_write_done(struct tevent_req *subreq)
  send:
 	if (!srv_send_smb(
 		    smbd_server_fd(), (char *)req->outbuf,
+		    true, req->seqnum+1,
 		    IS_CONN_ENCRYPTED(req->conn) || req->encrypted,
 		    &req->pcd)) {
 		exit_server_cleanly("construct_reply: srv_send_smb failed.");
@@ -322,6 +325,7 @@ static void api_dcerpc_cmd_read_done(struct tevent_req *subreq)
 		reply_nterror(req, status);
 
 		if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+				  true, req->seqnum+1,
 				  IS_CONN_ENCRYPTED(req->conn)
 				  ||req->encrypted, &req->pcd)) {
 			exit_server_cleanly("construct_reply: srv_send_smb "
diff --git a/source3/smbd/negprot.c b/source3/smbd/negprot.c
index a921954c49..e548c587c1 100644
--- a/source3/smbd/negprot.c
+++ b/source3/smbd/negprot.c
@@ -316,7 +316,7 @@ static void reply_nt1(struct smb_request *req, uint16 choice)
 			capabilities &= ~CAP_RAW_MODE;
 			if (lp_server_signing() == Required)
 				secword |=NEGOTIATE_SECURITY_SIGNATURES_REQUIRED;
-			srv_set_signing_negotiated();
+			srv_set_signing_negotiated(smbd_server_conn);
 		} else {
 			DEBUG(0,("reply_nt1: smb signing is incompatible with share level security !\n"));
 			if (lp_server_signing() == Required) {
diff --git a/source3/smbd/notify.c b/source3/smbd/notify.c
index 8ceeaf5f55..fdab2ca848 100644
--- a/source3/smbd/notify.c
+++ b/source3/smbd/notify.c
@@ -143,7 +143,9 @@ static void change_notify_reply_packet(connection_struct *conn,
 	}
 
 	show_msg((char *)req->outbuf);
-	if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+	if (!srv_send_smb(smbd_server_fd(),
+			  (char *)req->outbuf,
+			  true, req->seqnum+1,
 			  req->encrypted, &req->pcd)) {
 		exit_server_cleanly("change_notify_reply_packet: srv_send_smb "
 				    "failed.");
@@ -260,9 +262,6 @@ NTSTATUS change_notify_add_request(struct smb_request *req,
 	map->mid = request->req->mid;
 	DLIST_ADD(notify_changes_by_mid, map);
 
-	/* Push the MID of this packet on the signing queue. */
-	srv_defer_sign_response(request->req->mid);
-
 	return NT_STATUS_OK;
 }
 
diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c
index 9c7fb1914e..7e75eea6b4 100644
--- a/source3/smbd/nttrans.c
+++ b/source3/smbd/nttrans.c
@@ -230,6 +230,7 @@ void send_nt_replies(connection_struct *conn,
 		show_msg((char *)req->outbuf);
 		if (!srv_send_smb(smbd_server_fd(),
 				(char *)req->outbuf,
+				true, req->seqnum+1,
 				IS_CONN_ENCRYPTED(conn),
 				&req->pcd)) {
 			exit_server_cleanly("send_nt_replies: srv_send_smb failed.");
@@ -440,6 +441,8 @@ void reply_ntcreate_and_X(struct smb_request *req)
 
 	START_PROFILE(SMBntcreateX);
 
+	SET_STAT_INVALID(sbuf);
+
 	if (req->wct < 24) {
 		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 		return;
@@ -864,6 +867,8 @@ static void call_nt_transact_create(connection_struct *conn,
 	uint8_t oplock_granted;
 	TALLOC_CTX *ctx = talloc_tos();
 
+	SET_STAT_INVALID(sbuf);
+
 	DEBUG(5,("call_nt_transact_create\n"));
 
 	/*
@@ -1129,9 +1134,9 @@ void reply_ntcancel(struct smb_request *req)
 	 */
 
 	START_PROFILE(SMBntcancel);
+	srv_cancel_sign_response(smbd_server_conn);
 	remove_pending_change_notify_requests_by_mid(req->mid);
 	remove_pending_lock_requests_by_mid(req->mid);
-	srv_cancel_sign_response(req->mid, true);
 
 	DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
 
diff --git a/source3/smbd/open.c b/source3/smbd/open.c
index d529b009d5..52df4fa143 100644
--- a/source3/smbd/open.c
+++ b/source3/smbd/open.c
@@ -1033,15 +1033,6 @@ static void defer_open(struct share_mode_lock *lck,
 		exit_server("push_deferred_smb_message failed");
 	}
 	add_deferred_open(lck, req->mid, request_time, state->id);
-
-	/*
-	 * Push the MID of this packet on the signing queue.
-	 * We only do this once, the first time we push the packet
-	 * onto the deferred open queue, as this has a side effect
-	 * of incrementing the response sequence number.
-	 */
-
-	srv_defer_sign_response(req->mid);
 }
 
 
diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index 22870283fa..ce00397bbd 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -361,7 +361,6 @@ void process_oplock_async_level2_break_message(struct messaging_context *msg_ctx
 	struct share_mode_entry msg;
 	files_struct *fsp;
 	char *break_msg;
-	bool sign_state;
 
 	if (data->data == NULL) {
 		DEBUG(0, ("Got NULL buffer\n"));
@@ -423,20 +422,14 @@ void process_oplock_async_level2_break_message(struct messaging_context *msg_ctx
 		wait_before_sending_break();
 	}
 
-	/* Save the server smb signing state. */
-	sign_state = srv_oplock_set_signing(False);
-
 	show_msg(break_msg);
 	if (!srv_send_smb(smbd_server_fd(),
-			break_msg,
+			break_msg, false, 0,
 			IS_CONN_ENCRYPTED(fsp->conn),
 			NULL)) {
 		exit_server_cleanly("oplock_break: srv_send_smb failed.");
 	}
 
-	/* Restore the sign state to what it was. */
-	srv_oplock_set_signing(sign_state);
-
 	TALLOC_FREE(break_msg);
 
 	/* Async level2 request, don't send a reply, just remove the oplock. */
@@ -457,7 +450,6 @@ static void process_oplock_break_message(struct messaging_context *msg_ctx,
 	files_struct *fsp;
 	char *break_msg;
 	bool break_to_level2 = False;
-	bool sign_state;
 
 	if (data->data == NULL) {
 		DEBUG(0, ("Got NULL buffer\n"));
@@ -530,20 +522,14 @@ static void process_oplock_break_message(struct messaging_context *msg_ctx,
 		wait_before_sending_break();
 	}
 
-	/* Save the server smb signing state. */
-	sign_state = srv_oplock_set_signing(False);
-
 	show_msg(break_msg);
 	if (!srv_send_smb(smbd_server_fd(),
-			break_msg,
+			break_msg, false, 0,
 			IS_CONN_ENCRYPTED(fsp->conn),
 			NULL)) {
 		exit_server_cleanly("oplock_break: srv_send_smb failed.");
 	}
 
-	/* Restore the sign state to what it was. */
-	srv_oplock_set_signing(sign_state);
-
 	TALLOC_FREE(break_msg);
 
 	fsp->sent_oplock_break = break_to_level2 ? LEVEL_II_BREAK_SENT:BREAK_TO_NONE_SENT;
@@ -570,7 +556,6 @@ static void process_kernel_oplock_break(struct messaging_context *msg_ctx,
 	unsigned long file_id;
 	files_struct *fsp;
 	char *break_msg;
-	bool sign_state;
 
 	if (data->data == NULL) {
 		DEBUG(0, ("Got NULL buffer\n"));
@@ -610,20 +595,14 @@ static void process_kernel_oplock_break(struct messaging_context *msg_ctx,
 		exit_server("Could not talloc break_msg\n");
 	}
 
-	/* Save the server smb signing state. */
-	sign_state = srv_oplock_set_signing(False);
-
 	show_msg(break_msg);
 	if (!srv_send_smb(smbd_server_fd(),
-			break_msg,
+			break_msg, false, 0,
 			IS_CONN_ENCRYPTED(fsp->conn),
 			NULL)) {
 		exit_server_cleanly("oplock_break: srv_send_smb failed.");
 	}
 
-	/* Restore the sign state to what it was. */
-	srv_oplock_set_signing(sign_state);
-
 	TALLOC_FREE(break_msg);
 
 	fsp->sent_oplock_break = BREAK_TO_NONE_SENT;
diff --git a/source3/smbd/password.c b/source3/smbd/password.c
index 15d120a79c..076965e783 100644
--- a/source3/smbd/password.c
+++ b/source3/smbd/password.c
@@ -298,11 +298,13 @@ int register_existing_vuid(uint16 vuid,
 			vuser->server_info->unix_name);
 	}
 
-	if (srv_is_signing_negotiated() && !vuser->server_info->guest &&
-			!srv_signing_started()) {
+	if (srv_is_signing_negotiated(smbd_server_conn) &&
+	    !vuser->server_info->guest) {
 		/* Try and turn on server signing on the first non-guest
 		 * sessionsetup. */
-		srv_set_signing(vuser->server_info->user_session_key, response_blob);
+		srv_set_signing(smbd_server_conn,
+				vuser->server_info->user_session_key,
+				response_blob);
 	}
 
 	/* fill in the current_user_info struct */
diff --git a/source3/smbd/pipes.c b/source3/smbd/pipes.c
index 2686cf41d9..7ae7435646 100644
--- a/source3/smbd/pipes.c
+++ b/source3/smbd/pipes.c
@@ -216,6 +216,7 @@ static void pipe_write_done(struct tevent_req *subreq)
 
  send:
 	if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+			  true, req->seqnum+1,
 			  IS_CONN_ENCRYPTED(req->conn)||req->encrypted,
 			  &req->pcd)) {
 		exit_server_cleanly("construct_reply: srv_send_smb failed.");
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index 18fbdd7939..65778ab0fc 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -32,16 +32,20 @@ static void construct_reply_common(struct smb_request *req, const char *inbuf,
  Send an smb to a fd.
 ****************************************************************************/
 
-bool srv_send_smb(int fd, char *buffer, bool do_encrypt,
-	          struct smb_perfcount_data *pcd)
+bool srv_send_smb(int fd, char *buffer,
+		  bool do_signing, uint32_t seqnum,
+		  bool do_encrypt,
+		  struct smb_perfcount_data *pcd)
 {
 	size_t len = 0;
 	size_t nwritten=0;
 	ssize_t ret;
 	char *buf_out = buffer;
 
-	/* Sign the outgoing packet if required. */
-	srv_calculate_sign_mac(buf_out);
+	if (do_signing) {
+		/* Sign the outgoing packet if required. */
+		srv_calculate_sign_mac(smbd_server_conn, buf_out, seqnum);
+	}
 
 	if (do_encrypt) {
 		NTSTATUS status = srv_encrypt_buffer(buffer, &buf_out);
@@ -275,7 +279,7 @@ static NTSTATUS receive_smb_raw_talloc(TALLOC_CTX *mem_ctx, int fd,
 	if (CVAL(lenbuf,0) == 0 && min_recv_size &&
 	    (smb_len_large(lenbuf) > /* Could be a UNIX large writeX. */
 		(min_recv_size + STANDARD_WRITE_AND_X_HEADER_SIZE)) &&
-	    !srv_is_signing_active()) {
+	    !srv_is_signing_active(smbd_server_conn)) {
 
 		return receive_smb_raw_talloc_partial_read(
 			mem_ctx, lenbuf, fd, buffer, timeout, p_unread, plen);
@@ -311,7 +315,8 @@ static NTSTATUS receive_smb_raw_talloc(TALLOC_CTX *mem_ctx, int fd,
 static NTSTATUS receive_smb_talloc(TALLOC_CTX *mem_ctx,	int fd,
 				   char **buffer, unsigned int timeout,
 				   size_t *p_unread, bool *p_encrypted,
-				   size_t *p_len)
+				   size_t *p_len,
+				   uint32_t *seqnum)
 {
 	size_t len = 0;
 	NTSTATUS status;
@@ -336,7 +341,7 @@ static NTSTATUS receive_smb_talloc(TALLOC_CTX *mem_ctx,	int fd,
 	}
 
 	/* Check the incoming SMB signature. */
-	if (!srv_check_sign_mac(*buffer, true)) {
+	if (!srv_check_sign_mac(smbd_server_conn, *buffer, seqnum)) {
 		DEBUG(0, ("receive_smb: SMB Signature verification failed on "
 			  "incoming packet!\n"));
 		return NT_STATUS_INVALID_NETWORK_RESPONSE;
@@ -366,6 +371,7 @@ void init_smb_request(struct smb_request *req,
 	req->flags2 = SVAL(inbuf, smb_flg2);
 	req->smbpid = SVAL(inbuf, smb_pid);
 	req->mid    = SVAL(inbuf, smb_mid);
+	req->seqnum = 0;
 	req->vuid   = SVAL(inbuf, smb_uid);
 	req->tid    = SVAL(inbuf, smb_tid);
 	req->wct    = CVAL(inbuf, smb_wct);
@@ -401,7 +407,8 @@ void init_smb_request(struct smb_request *req,
 
 static void process_smb(struct smbd_server_connection *conn,
 			uint8_t *inbuf, size_t nread, size_t unread_bytes,
-			bool encrypted, struct smb_perfcount_data *deferred_pcd);
+			uint32_t seqnum, bool encrypted,
+			struct smb_perfcount_data *deferred_pcd);
 
 static void smbd_deferred_open_timer(struct event_context *ev,
 				     struct timed_event *te,
@@ -427,7 +434,7 @@ static void smbd_deferred_open_timer(struct event_context *ev,
 
 	process_smb(smbd_server_conn, inbuf,
 		    msg->buf.length, 0,
-		    msg->encrypted, &msg->pcd);
+		    msg->seqnum, msg->encrypted, &msg->pcd);
 }
 
 /****************************************************************************
@@ -458,6 +465,7 @@ static bool push_queued_message(struct smb_request *req,
 	}
 
 	msg->request_time = request_time;
+	msg->seqnum = req->seqnum;
 	msg->encrypted = req->encrypted;
 	SMB_PERFCOUNT_DEFER_OP(&req->pcd, &msg->pcd);
 
@@ -913,7 +921,7 @@ static const struct smb_message_struct {
 /* 0x30 */ { NULL, NULL, 0 },
 /* 0x31 */ { NULL, NULL, 0 },
 /* 0x32 */ { "SMBtrans2",reply_trans2, AS_USER | CAN_IPC },
-/* 0x33 */ { "SMBtranss2",reply_transs2, AS_USER},
+/* 0x33 */ { "SMBtranss2",reply_transs2, AS_USER | CAN_IPC },
 /* 0x34 */ { "SMBfindclose",reply_findclose,AS_USER},
 /* 0x35 */ { "SMBfindnclose",reply_findnclose,AS_USER},
 /* 0x36 */ { NULL, NULL, 0 },
@@ -1362,7 +1370,7 @@ static connection_struct *switch_message(uint8 type, struct smb_request *req, in
 ****************************************************************************/
 
 static void construct_reply(char *inbuf, int size, size_t unread_bytes,
-			    bool encrypted,
+			    uint32_t seqnum, bool encrypted,
 			    struct smb_perfcount_data *deferred_pcd)
 {
 	connection_struct *conn;
@@ -1374,6 +1382,7 @@ static void construct_reply(char *inbuf, int size, size_t unread_bytes,
 
 	init_smb_request(req, (uint8 *)inbuf, unread_bytes, encrypted);
 	req->inbuf  = (uint8_t *)talloc_move(req, &inbuf);
+	req->seqnum = seqnum;
 
 	/* we popped this message off the queue - keep original perf data */
 	if (deferred_pcd)
@@ -1405,6 +1414,7 @@ static void construct_reply(char *inbuf, int size, size_t unread_bytes,
 
 	if (!srv_send_smb(smbd_server_fd(),
 			(char *)req->outbuf,
+			true, req->seqnum+1,
 			IS_CONN_ENCRYPTED(conn)||req->encrypted,
 			&req->pcd)) {
 		exit_server_cleanly("construct_reply: srv_send_smb failed.");
@@ -1420,7 +1430,8 @@ static void construct_reply(char *inbuf, int size, size_t unread_bytes,
 ****************************************************************************/
 static void process_smb(struct smbd_server_connection *conn,
 			uint8_t *inbuf, size_t nread, size_t unread_bytes,
-			bool encrypted, struct smb_perfcount_data *deferred_pcd)
+			uint32_t seqnum, bool encrypted,
+			struct smb_perfcount_data *deferred_pcd)
 {
 	int msg_type = CVAL(inbuf,0);
 
@@ -1442,7 +1453,7 @@ static void process_smb(struct smbd_server_connection *conn,
 
 	show_msg((char *)inbuf);
 
-	construct_reply((char *)inbuf,nread,unread_bytes,encrypted,deferred_pcd);
+	construct_reply((char *)inbuf,nread,unread_bytes,seqnum,encrypted,deferred_pcd);
 	trans_num++;
 
 done:
@@ -1637,6 +1648,7 @@ void chain_reply(struct smb_request *req)
 			   talloc_get_size(req->chain_outbuf) - 4);
 
 		if (!srv_send_smb(smbd_server_fd(), (char *)req->chain_outbuf,
+				  true, req->seqnum+1,
 				  IS_CONN_ENCRYPTED(req->conn)
 				  ||req->encrypted,
 				  &req->pcd)) {
@@ -1761,6 +1773,7 @@ void chain_reply(struct smb_request *req)
 	show_msg((char *)(req->chain_outbuf));
 
 	if (!srv_send_smb(smbd_server_fd(), (char *)req->chain_outbuf,
+			  true, req->seqnum+1,
 			  IS_CONN_ENCRYPTED(req->conn)||req->encrypted,
 			  &req->pcd)) {
 		exit_server_cleanly("construct_reply: srv_send_smb failed.");
@@ -1830,6 +1843,7 @@ static void smbd_server_connection_read_handler(struct smbd_server_connection *c
 	bool encrypted = false;
 	TALLOC_CTX *mem_ctx = talloc_tos();
 	NTSTATUS status;
+	uint32_t seqnum;
 
 	/* TODO: make this completely nonblocking */
 
@@ -1838,7 +1852,7 @@ static void smbd_server_connection_read_handler(struct smbd_server_connection *c
 				    0, /* timeout */
 				    &unread_bytes,
 				    &encrypted,
-				    &inbuf_len);
+				    &inbuf_len, &seqnum);
 	if (NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
 		goto process;
 	}
@@ -1850,7 +1864,8 @@ static void smbd_server_connection_read_handler(struct smbd_server_connection *c
 	}
 
 process:
-	process_smb(conn, inbuf, inbuf_len, unread_bytes, encrypted, NULL);
+	process_smb(conn, inbuf, inbuf_len, unread_bytes,
+		    seqnum, encrypted, NULL);
 }
 
 static void smbd_server_connection_handler(struct event_context *ev,
@@ -2015,7 +2030,8 @@ void smbd_process(void)
 		unsigned char buf[5] = {0x83, 0, 0, 1, 0x81};
 		DEBUG( 1, ("Connection denied from %s\n",
 			   client_addr(get_client_fd(),addr,sizeof(addr)) ) );
-		(void)srv_send_smb(smbd_server_fd(),(char *)buf,false, NULL);
+		(void)srv_send_smb(smbd_server_fd(),(char *)buf, false,
+				   0, false, NULL);
 		exit_server_cleanly("connection denied");
 	}
 
@@ -2041,6 +2057,10 @@ void smbd_process(void)
 		DEBUG(0,("Changed root to %s\n", lp_rootdir()));
 	}
 
+	if (!srv_init_signing(smbd_server_conn)) {
+		exit_server("Failed to init smb_signing");
+	}
+
 	/* Setup oplocks */
 	if (!init_oplocks(smbd_messaging_context()))
 		exit_server("Failed to init oplocks");
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c
index 8b560bd8ca..16eb4a7fd7 100644
--- a/source3/smbd/reply.c
+++ b/source3/smbd/reply.c
@@ -497,7 +497,7 @@ void reply_special(char *inbuf)
 	DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
 		    msg_type, msg_flags));
 
-	srv_send_smb(smbd_server_fd(), outbuf, false, NULL);
+	srv_send_smb(smbd_server_fd(), outbuf, false, 0, false, NULL);
 	return;
 }
 
@@ -1606,6 +1606,8 @@ void reply_open(struct smb_request *req)
 
 	START_PROFILE(SMBopen);
 
+	SET_STAT_INVALID(sbuf);
+
 	if (req->wct < 2) {
 		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 		END_PROFILE(SMBopen);
@@ -1741,6 +1743,8 @@ void reply_open_and_X(struct smb_request *req)
 		return;
 	}
 
+	SET_STAT_INVALID(sbuf);
+
 	open_flags = SVAL(req->vwv+2, 0);
 	deny_mode = SVAL(req->vwv+3, 0);
 	smb_attr = SVAL(req->vwv+5, 0);
@@ -1945,6 +1949,7 @@ void reply_mknew(struct smb_request *req)
 
 	START_PROFILE(SMBcreate);
 	ZERO_STRUCT(ft);
+	SET_STAT_INVALID(sbuf);
 
         if (req->wct < 3) {
 		reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
@@ -2123,6 +2128,7 @@ void reply_ctemp(struct smb_request *req)
 		return;
 	}
 
+	SET_STAT_INVALID(sbuf);
 	SMB_VFS_STAT(conn,fname,&sbuf);
 
 	/* We should fail if file does not exist. */
@@ -2766,7 +2772,8 @@ static void send_file_readbraw(connection_struct *conn,
 	 */
 
 	if ( !req_is_in_chain(req) && (nread > 0) && (fsp->base_fsp == NULL) &&
-	    (fsp->wcp == NULL) && lp_use_sendfile(SNUM(conn)) ) {
+	    (fsp->wcp == NULL) &&
+	    lp_use_sendfile(SNUM(conn), smbd_server_conn->signing_state) ) {
 		ssize_t sendfile_read = -1;
 		char header[4];
 		DATA_BLOB header_blob;
@@ -2870,7 +2877,8 @@ void reply_readbraw(struct smb_request *req)
 
 	START_PROFILE(SMBreadbraw);
 
-	if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
+	if (srv_is_signing_active(smbd_server_conn) ||
+	    is_encrypted_packet(req->inbuf)) {
 		exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
 			"raw reads/writes are disallowed.");
 	}
@@ -3274,7 +3282,8 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
 
 	if (!req_is_in_chain(req) &&
 	    !is_encrypted_packet(req->inbuf) && (fsp->base_fsp == NULL) &&
-	    lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
+	    (fsp->wcp == NULL) &&
+	    lp_use_sendfile(SNUM(conn), smbd_server_conn->signing_state) ) {
 		uint8 headerbuf[smb_size + 12 * 2];
 		DATA_BLOB header;
 
@@ -3450,7 +3459,8 @@ void reply_read_and_X(struct smb_request *req)
 				return;
 			}
 			/* We currently don't do this on signed or sealed data. */
-			if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
+			if (srv_is_signing_active(smbd_server_conn) ||
+			    is_encrypted_packet(req->inbuf)) {
 				reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
 				END_PROFILE(SMBreadX);
 				return;
@@ -3558,7 +3568,7 @@ void reply_writebraw(struct smb_request *req)
 	 */
 	SCVAL(req->inbuf,smb_com,SMBwritec);
 
-	if (srv_is_signing_active()) {
+	if (srv_is_signing_active(smbd_server_conn)) {
 		END_PROFILE(SMBwritebraw);
 		exit_server_cleanly("reply_writebraw: SMB signing is active - "
 				"raw reads/writes are disallowed.");
@@ -3653,9 +3663,10 @@ void reply_writebraw(struct smb_request *req)
 	SSVALS(buf,smb_vwv0,0xFFFF);
 	show_msg(buf);
 	if (!srv_send_smb(smbd_server_fd(),
-			buf,
-			IS_CONN_ENCRYPTED(conn),
-			&req->pcd)) {
+			  buf,
+			  false, 0, /* no signing */
+			  IS_CONN_ENCRYPTED(conn),
+			  &req->pcd)) {
 		exit_server_cleanly("reply_writebraw: srv_send_smb "
 			"failed.");
 	}
@@ -4757,6 +4768,7 @@ void reply_echo(struct smb_request *req)
 		show_msg((char *)req->outbuf);
 		if (!srv_send_smb(smbd_server_fd(),
 				(char *)req->outbuf,
+				true, req->seqnum+1,
 				IS_CONN_ENCRYPTED(conn)||req->encrypted,
 				cur_pcd))
 			exit_server_cleanly("reply_echo: srv_send_smb failed.");
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index d27f98281b..67836f785b 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -643,8 +643,19 @@ static bool open_sockets_smbd(struct smbd_parent_context *parent,
 #endif
 
 	if (dns_port != 0) {
+#ifdef WITH_DNSSD_SUPPORT
 		smbd_setup_mdns_registration(smbd_event_context(),
 					     parent, dns_port);
+#endif
+#ifdef WITH_AVAHI_SUPPORT
+		void *avahi_conn;
+
+		avahi_conn = avahi_start_register(
+			smbd_event_context(), smbd_event_context(), dns_port);
+		if (avahi_conn == NULL) {
+			DEBUG(10, ("avahi_start_register failed\n"));
+		}
+#endif
 	}
 
 	return true;
diff --git a/source3/smbd/service.c b/source3/smbd/service.c
index eb16a2601e..e33f04d971 100644
--- a/source3/smbd/service.c
+++ b/source3/smbd/service.c
@@ -1110,7 +1110,7 @@ static connection_struct *make_connection_snum(int snum, user_struct *vuser,
 	if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) {
 		dbgtext( "%s (%s) ", get_remote_machine_name(),
 			 conn->client_address );
-		dbgtext( "%s", srv_is_signing_active() ? "signed " : "");
+		dbgtext( "%s", srv_is_signing_active(smbd_server_conn) ? "signed " : "");
 		dbgtext( "connect to service %s ", lp_servicename(snum) );
 		dbgtext( "initially as user %s ",
 			 conn->server_info->unix_name );
diff --git a/source3/smbd/sesssetup.c b/source3/smbd/sesssetup.c
index 2c29192220..e8878a29ab 100644
--- a/source3/smbd/sesssetup.c
+++ b/source3/smbd/sesssetup.c
@@ -91,25 +91,6 @@ static int push_signature(uint8 **outbuf)
 }
 
 /****************************************************************************
- Start the signing engine if needed. Don't fail signing here.
-****************************************************************************/
-
-static void sessionsetup_start_signing_engine(
-			const auth_serversupplied_info *server_info,
-			const uint8 *inbuf)
-{
-	if (!server_info->guest && !srv_signing_started()) {
-		/* We need to start the signing engine
-		 * here but a W2K client sends the old
-		 * "BSRSPYL " signature instead of the
-		 * correct one. Subsequent packets will
-		 * be correct.
-		 */
-		srv_check_sign_mac((char *)inbuf, False);
-	}
-}
-
-/****************************************************************************
  Send a security blob via a session setup reply.
 ****************************************************************************/
 
@@ -579,7 +560,6 @@ static void reply_spnego_kerberos(struct smb_request *req,
 
 		SSVAL(req->outbuf, smb_uid, sess_vuid);
 
-		sessionsetup_start_signing_engine(server_info, req->inbuf);
 		/* Successful logon. Keep this vuid. */
 		*p_invalidate_vuid = False;
 	}
@@ -668,9 +648,6 @@ static void reply_spnego_ntlmssp(struct smb_request *req,
 		if (server_info->guest) {
 			SSVAL(req->outbuf,smb_vwv2,1);
 		}
-
-		sessionsetup_start_signing_engine(server_info,
-						  (uint8 *)req->inbuf);
 	}
 
   out:
@@ -1804,8 +1781,6 @@ void reply_sesssetup_and_X(struct smb_request *req)
 
 		/* current_user_info is changed on new vuid */
 		reload_services( True );
-
-		sessionsetup_start_signing_engine(server_info, req->inbuf);
 	}
 
 	data_blob_free(&nt_resp);
diff --git a/source3/smbd/signing.c b/source3/smbd/signing.c
new file mode 100644
index 0000000000..b56eb71f45
--- /dev/null
+++ b/source3/smbd/signing.c
@@ -0,0 +1,158 @@
+/*
+   Unix SMB/CIFS implementation.
+   SMB Signing Code
+   Copyright (C) Jeremy Allison 2003.
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
+   Copyright (C) Stefan Metzmacher 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "smbd/globals.h"
+
+
+/***********************************************************
+ Called to validate an incoming packet from the client.
+************************************************************/
+
+bool srv_check_sign_mac(struct smbd_server_connection *conn,
+			const char *inbuf, uint32_t *seqnum)
+{
+	/* Check if it's a non-session message. */
+	if(CVAL(inbuf,0)) {
+		return true;
+	}
+
+	*seqnum = smb_signing_next_seqnum(conn->signing_state, false);
+	return smb_signing_check_pdu(conn->signing_state,
+				     (const uint8_t *)inbuf,
+				     *seqnum);
+}
+
+/***********************************************************
+ Called to sign an outgoing packet to the client.
+************************************************************/
+
+void srv_calculate_sign_mac(struct smbd_server_connection *conn,
+			    char *outbuf, uint32_t seqnum)
+{
+	/* Check if it's a non-session message. */
+	if(CVAL(outbuf,0)) {
+		return;
+	}
+
+	smb_signing_sign_pdu(conn->signing_state, (uint8_t *)outbuf, seqnum);
+}
+
+
+/***********************************************************
+ Called to indicate a oneway request
+************************************************************/
+void srv_cancel_sign_response(struct smbd_server_connection *conn)
+{
+	smb_signing_cancel_reply(conn->signing_state, true);
+}
+
+/***********************************************************
+ Called by server negprot when signing has been negotiated.
+************************************************************/
+
+bool srv_init_signing(struct smbd_server_connection *conn)
+{
+	bool allowed = true;
+	bool mandatory = false;
+
+	switch (lp_server_signing()) {
+	case Required:
+		mandatory = true;
+		break;
+	case Auto:
+		break;
+	case True:
+		break;
+	case False:
+		allowed = false;
+		break;
+	}
+
+	conn->signing_state = smb_signing_init(smbd_event_context(),
+					       allowed, mandatory);
+	if (!conn->signing_state) {
+		return false;
+	}
+
+	return true;
+}
+
+void srv_set_signing_negotiated(struct smbd_server_connection *conn)
+{
+	smb_signing_set_negotiated(conn->signing_state);
+}
+
+/***********************************************************
+ Returns whether signing is active. We can't use sendfile or raw
+ reads/writes if it is.
+************************************************************/
+
+bool srv_is_signing_active(struct smbd_server_connection *conn)
+{
+	return smb_signing_is_active(conn->signing_state);
+}
+
+
+/***********************************************************
+ Returns whether signing is negotiated. We can't use it unless it was
+ in the negprot.
+************************************************************/
+
+bool srv_is_signing_negotiated(struct smbd_server_connection *conn)
+{
+	return smb_signing_is_negotiated(conn->signing_state);
+}
+
+/***********************************************************
+ Turn on signing from this packet onwards.
+************************************************************/
+
+void srv_set_signing(struct smbd_server_connection *conn,
+		     const DATA_BLOB user_session_key,
+		     const DATA_BLOB response)
+{
+	bool negotiated;
+	bool mandatory;
+
+	if (!user_session_key.length)
+		return;
+
+	negotiated = smb_signing_is_negotiated(conn->signing_state);
+	mandatory = smb_signing_is_mandatory(conn->signing_state);
+
+	if (!negotiated && !mandatory) {
+		DEBUG(5,("srv_set_signing: signing negotiated = %u, "
+			 "mandatory_signing = %u. Not allowing smb signing.\n",
+			 negotiated, mandatory));
+		return;
+	}
+
+	if (!smb_signing_activate(conn->signing_state,
+				  user_session_key, response)) {
+		return;
+	}
+
+	DEBUG(3,("srv_set_signing: turning on SMB signing: "
+		 "signing negotiated = %u, mandatory_signing = %u.\n",
+		 negotiated, mandatory));
+}
+
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index ee1dda98b2..04b1145e58 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -832,6 +832,7 @@ void send_trans2_replies(connection_struct *conn,
 		show_msg((char *)req->outbuf);
 		if (!srv_send_smb(smbd_server_fd(),
 				(char *)req->outbuf,
+				true, req->seqnum+1,
 				IS_CONN_ENCRYPTED(conn),
 				&req->pcd))
 			exit_server_cleanly("send_trans2_replies: srv_send_smb failed.");
@@ -894,6 +895,8 @@ static void call_trans2open(connection_struct *conn,
 	uint32 create_options = 0;
 	TALLOC_CTX *ctx = talloc_tos();
 
+	SET_STAT_INVALID(sbuf);
+
 	/*
 	 * Ensure we have enough parameters to perform the operation.
 	 */
@@ -2892,8 +2895,8 @@ cBytesSector=%u, cUnitTotal=%u, cUnitAvail=%d\n", (unsigned int)bsize, (unsigned
 		case SMB_QUERY_CIFS_UNIX_INFO:
 		{
 			bool large_write = lp_min_receive_file_size() &&
-						!srv_is_signing_active();
-			bool large_read = !srv_is_signing_active();
+					!srv_is_signing_active(smbd_server_conn);
+			bool large_read = !srv_is_signing_active(smbd_server_conn);
 			int encrypt_caps = 0;
 
 			if (!lp_unix_extensions()) {
diff --git a/source3/utils/net_rpc_printer.c b/source3/utils/net_rpc_printer.c
index 1d0e9a38be..9721628f02 100644
--- a/source3/utils/net_rpc_printer.c
+++ b/source3/utils/net_rpc_printer.c
@@ -2260,14 +2260,13 @@ NTSTATUS rpc_printer_migrate_settings_internals(struct net_context *c,
 			info_dst.info2.secdesc = NULL;
 
 #if 0
-			if (asprintf(&devicename, "\\\\%s\\%s", longname,
-				     printername) < 0) {
+			info_dst.info2.devmode.devicename =
+				talloc_asprintf(mem_ctx, "\\\\%s\\%s",
+						longname, printername);
+			if (!info_dst.info2.devmode.devicename) {
 				nt_status = NT_STATUS_NO_MEMORY;
 				goto done;
 			}
-
-			init_unistr(&ctr_dst.printers_2->devmode->devicename,
-				    devicename);
 #endif
 			if (!net_spoolss_setprinter(pipe_hnd_dst, mem_ctx, &hnd_dst,
 						    level, &info_dst))
diff --git a/source3/winbindd/winbindd_pam.c b/source3/winbindd/winbindd_pam.c
index 15d1b7e2bf..54bcac2b04 100644
--- a/source3/winbindd/winbindd_pam.c
+++ b/source3/winbindd/winbindd_pam.c
@@ -1854,7 +1854,7 @@ enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
 
 	if (state->request.data.auth_crap.lm_resp_len > sizeof(state->request.data.auth_crap.lm_resp)
 		|| state->request.data.auth_crap.nt_resp_len > sizeof(state->request.data.auth_crap.nt_resp)) {
-		if (!state->request.flags & WBFLAG_BIG_NTLMV2_BLOB ||
+		if (!(state->request.flags & WBFLAG_BIG_NTLMV2_BLOB) ||
 		     state->request.extra_len != state->request.data.auth_crap.nt_resp_len) {
 			DEBUG(0, ("winbindd_pam_auth_crap: invalid password length %u/%u\n",
 				  state->request.data.auth_crap.lm_resp_len,