summaryrefslogtreecommitdiff
path: root/source3
diff options
context:
space:
mode:
authorStefan Metzmacher <metze@samba.org>2004-04-22 15:30:42 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 10:51:20 -0500
commit6f3fe3a85ad02a908c60d6e4bd8a8efe29bda1ad (patch)
treee9a3e9299b9dd7119545fc7207b4afbe5ccfbde9 /source3
parentc271c861804c54e3feea5aff662d5728fbb235f1 (diff)
downloadsamba-6f3fe3a85ad02a908c60d6e4bd8a8efe29bda1ad.tar.gz
samba-6f3fe3a85ad02a908c60d6e4bd8a8efe29bda1ad.tar.bz2
samba-6f3fe3a85ad02a908c60d6e4bd8a8efe29bda1ad.zip
r329: add the shadow_copy vfs module
I'll add documentation to the Samba-Howto-Collection metze (This used to be commit 2bef5d2741807fe3f38a95710533520700e253a4)
Diffstat (limited to 'source3')
-rw-r--r--source3/Makefile.in6
-rw-r--r--source3/configure.in3
-rw-r--r--source3/modules/vfs_shadow_copy.c227
3 files changed, 235 insertions, 1 deletions
diff --git a/source3/Makefile.in b/source3/Makefile.in
index de7ee10bb4..2203af089b 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -320,6 +320,7 @@ VFS_DEFAULT_QUOTA_OBJ = modules/vfs_default_quota.o
VFS_READONLY_OBJ = modules/vfs_readonly.o modules/getdate.o
VFS_CAP_OBJ = modules/vfs_cap.o
VFS_EXPAND_MSDFS_OBJ = modules/vfs_expand_msdfs.o
+VFS_SHADOW_COPY_OBJ = modules/vfs_shadow_copy.o
PLAINTEXT_AUTH_OBJ = auth/pampass.o auth/pass_check.o
@@ -1169,6 +1170,11 @@ bin/readonly.@SHLIBEXT@: $(VFS_READONLY_OBJ:.o=.@PICSUFFIX@)
@$(SHLD) $(LDSHFLAGS) -o $@ $(VFS_READONLY_OBJ:.o=.@PICSUFFIX@) \
@SONAMEFLAG@`basename $@`
+bin/shadow_copy.@SHLIBEXT@: $(VFS_SHADOW_COPY_OBJ:.o=.@PICSUFFIX@)
+ @echo "Building plugin $@"
+ @$(SHLD) $(LDSHFLAGS) -o $@ $(VFS_SHADOW_COPY_OBJ:.o=.@PICSUFFIX@) \
+ @SONAMEFLAG@`basename $@`
+
bin/cap.@SHLIBEXT@: $(VFS_CAP_OBJ:.o=.@PICSUFFIX@)
@echo "Building plugin $@"
@$(SHLD) $(LDSHFLAGS) -o $@ $(VFS_CAP_OBJ:.o=.@PICSUFFIX@) \
diff --git a/source3/configure.in b/source3/configure.in
index a03b37dd77..eb9b825691 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -360,7 +360,7 @@ dnl These have to be built static:
default_static_modules="pdb_smbpasswd pdb_tdbsam rpc_lsa rpc_samr rpc_reg rpc_lsa_ds rpc_wks rpc_net rpc_dfs rpc_srv rpc_spoolss auth_rhosts auth_sam auth_unix auth_winbind auth_server auth_domain auth_builtin"
dnl These are preferably build shared, and static if dlopen() is not available
-default_shared_modules="vfs_recycle vfs_audit vfs_extd_audit vfs_netatalk vfs_fake_perms vfs_default_quota vfs_readonly vfs_cap vfs_expand_msdfs charset_CP850 charset_CP437"
+default_shared_modules="vfs_recycle vfs_audit vfs_extd_audit vfs_netatalk vfs_fake_perms vfs_default_quota vfs_readonly vfs_cap vfs_expand_msdfs vfs_shadow_copy charset_CP850 charset_CP437"
if test "x$developer" = xyes; then
default_static_modules="$default_static_modules rpc_echo"
@@ -4333,6 +4333,7 @@ SMB_MODULE(vfs_default_quota, \$(VFS_DEFAULT_QUOTA_OBJ), "bin/default_quota.$SHL
SMB_MODULE(vfs_readonly, \$(VFS_READONLY_OBJ), "bin/readonly.$SHLIBEXT", VFS)
SMB_MODULE(vfs_cap, \$(VFS_CAP_OBJ), "bin/cap.$SHLIBEXT", VFS)
SMB_MODULE(vfs_expand_msdfs, \$(VFS_EXPAND_MSDFS_OBJ), "bin/expand_msdfs.$SHLIBEXT", VFS)
+SMB_MODULE(vfs_shadow_copy, \$(VFS_SHADOW_COPY_OBJ), "bin/shadow_copy.$SHLIBEXT", VFS)
SMB_SUBSYSTEM(VFS,smbd/vfs.o)
AC_DEFINE_UNQUOTED(STRING_STATIC_MODULES, "$string_static_modules", [String list of builtin modules])
diff --git a/source3/modules/vfs_shadow_copy.c b/source3/modules/vfs_shadow_copy.c
new file mode 100644
index 0000000000..7ad7b1f7b1
--- /dev/null
+++ b/source3/modules/vfs_shadow_copy.c
@@ -0,0 +1,227 @@
+/*
+ * implementation of an Shadow Copy module
+ *
+ * Copyright (C) Stefan Metzmacher 2003-2004
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+/*
+ Please read the VFS module Samba-HowTo-Collection.
+ there's a chapter about this module
+
+ For this share
+ Z:\
+
+ the ShadowCopies are in this directories
+
+ Z:\@GMT-2003.08.05-12.00.00\
+ Z:\@GMT-2003.08.05-12.01.00\
+ Z:\@GMT-2003.08.05-12.02.00\
+
+ e.g.
+
+ Z:\testfile.txt
+ Z:\@GMT-2003.08.05-12.02.00\testfile.txt
+
+ or:
+
+ Z:\testdir\testfile.txt
+ Z:\@GMT-2003.08.05-12.02.00\testdir\testfile.txt
+
+
+ Note: Files must differ to be displayed via Windows Explorer!
+ Directories are always displayed...
+*/
+
+static int vfs_shadow_copy_debug_level = DBGC_VFS;
+
+#undef DBGC_CLASS
+#define DBGC_CLASS vfs_shadow_copy_debug_level
+
+#define SHADOW_COPY_PREFIX "@GMT-"
+#define SHADOW_COPY_SAMPLE "@GMT-2004.02.18-15.44.00"
+
+typedef struct {
+ int pos;
+ int num;
+ struct dirent *dirs;
+} shadow_copy_Dir;
+
+static BOOL shadow_copy_match_name(const char *name)
+{
+ if (strncmp(SHADOW_COPY_PREFIX,name, sizeof(SHADOW_COPY_PREFIX)-1)==0 &&
+ (strlen(SHADOW_COPY_SAMPLE) == strlen(name))) {
+ return True;
+ }
+
+ return False;
+}
+
+static DIR *shadow_copy_opendir(vfs_handle_struct *handle, connection_struct *conn, const char *fname)
+{
+ shadow_copy_Dir *dirp;
+ DIR *p = SMB_VFS_NEXT_OPENDIR(handle,conn,fname);
+
+ if (!p) {
+ DEBUG(0,("shadow_copy_opendir: SMB_VFS_NEXT_OPENDIR() failed for [%s]\n",fname));
+ return NULL;
+ }
+
+ dirp = (shadow_copy_Dir *)malloc(sizeof(shadow_copy_Dir));
+ if (!dirp) {
+ DEBUG(0,("shadow_copy_opendir: Out of memory\n"));
+ SMB_VFS_NEXT_CLOSEDIR(handle,conn,p);
+ return NULL;
+ }
+
+ ZERO_STRUCTP(dirp);
+
+ while (True) {
+ struct dirent *d;
+ struct dirent *r;
+
+
+ d = SMB_VFS_NEXT_READDIR(handle, conn, p);
+ if (d == NULL) {
+ break;
+ }
+
+ if (shadow_copy_match_name(d->d_name)) {
+ DEBUG(8,("shadow_copy_opendir: hide [%s]\n",d->d_name));
+ continue;
+ }
+
+ DEBUG(10,("shadow_copy_opendir: not hide [%s]\n",d->d_name));
+
+ r = (struct dirent *)Realloc(dirp->dirs,(dirp->num+1)*sizeof(struct dirent));
+ if (!r) {
+ DEBUG(0,("shadow_copy_opendir: Out of memory\n"));
+ break;
+ }
+
+ dirp->dirs = r;
+ dirp->dirs[dirp->num++] = *d;
+ }
+
+ SMB_VFS_NEXT_CLOSEDIR(handle,conn,p);
+ return((DIR *)dirp);
+}
+
+struct dirent *shadow_copy_readdir(vfs_handle_struct *handle, connection_struct *conn, DIR *_dirp)
+{
+ shadow_copy_Dir *dirp = (shadow_copy_Dir *)_dirp;
+
+ if (dirp->pos < dirp->num) {
+ return &(dirp->dirs[dirp->pos++]);
+ }
+
+ return NULL;
+}
+
+int shadow_copy_closedir(vfs_handle_struct *handle, connection_struct *conn, DIR *_dirp)
+{
+ shadow_copy_Dir *dirp = (shadow_copy_Dir *)_dirp;
+
+ SAFE_FREE(dirp);
+
+ return 0;
+}
+
+static int shadow_copy_get_shadow_copy_data(vfs_handle_struct *handle, files_struct *fsp, SHADOW_COPY_DATA *shadow_copy_data, BOOL labels)
+{
+ DIR *p = SMB_VFS_NEXT_OPENDIR(handle,fsp->conn,fsp->conn->connectpath);
+
+ shadow_copy_data->num_volumes = 0;
+ shadow_copy_data->labels = NULL;
+
+ if (!p) {
+ DEBUG(0,("shadow_copy_get_shadow_copy_data: SMB_VFS_NEXT_OPENDIR() failed for [%s]\n",fsp->conn->connectpath));
+ return -1;
+ }
+
+ while (True) {
+ SHADOW_COPY_LABEL *tlabels;
+ struct dirent *d;
+
+ d = SMB_VFS_NEXT_READDIR(handle, fsp->conn, p);
+ if (d == NULL) {
+ break;
+ }
+
+ /* */
+ if (!shadow_copy_match_name(d->d_name)) {
+ DEBUG(10,("shadow_copy_get_shadow_copy_data: ignore [%s]\n",d->d_name));
+ continue;
+ }
+
+ DEBUG(7,("shadow_copy_get_shadow_copy_data: not ignore [%s]\n",d->d_name));
+
+ if (!labels) {
+ shadow_copy_data->num_volumes++;
+ continue;
+ }
+
+ tlabels = (SHADOW_COPY_LABEL *)talloc_realloc(shadow_copy_data->mem_ctx,
+ shadow_copy_data->labels,
+ (shadow_copy_data->num_volumes+1)*sizeof(SHADOW_COPY_LABEL));
+ if (tlabels == NULL) {
+ DEBUG(0,("shadow_copy_get_shadow_copy_data: Out of memory\n"));
+ SMB_VFS_NEXT_CLOSEDIR(handle,fsp->conn,p);
+ return -1;
+ }
+
+ snprintf(tlabels[shadow_copy_data->num_volumes++], sizeof(*tlabels), "%s",d->d_name);
+
+ shadow_copy_data->labels = tlabels;
+ }
+
+ SMB_VFS_NEXT_CLOSEDIR(handle,fsp->conn,p);
+ return 0;
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple shadow_copy_ops[] = {
+ {SMB_VFS_OP(shadow_copy_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy_readdir), SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy_closedir), SMB_VFS_OP_CLOSEDIR, SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(shadow_copy_get_shadow_copy_data), SMB_VFS_OP_GET_SHADOW_COPY_DATA,SMB_VFS_LAYER_OPAQUE},
+
+ {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_shadow_copy_init(void)
+{
+ NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "shadow_copy", shadow_copy_ops);
+
+ if (!NT_STATUS_IS_OK(ret))
+ return ret;
+
+ vfs_shadow_copy_debug_level = debug_add_class("shadow_copy");
+ if (vfs_shadow_copy_debug_level == -1) {
+ vfs_shadow_copy_debug_level = DBGC_VFS;
+ DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
+ "vfs_shadow_copy_init"));
+ } else {
+ DEBUG(10, ("%s: Debug class number of '%s': %d\n",
+ "vfs_shadow_copy_init","shadow_copy",vfs_shadow_copy_debug_level));
+ }
+
+ return ret;
+}