r1154: Change default setting for case sensitivity to "auto". If set to auto

then is the client supports it (current clients supported are Samba and
CIFSVFS - detected by the negprot strings "Samba", "POSIX 2" and a bare
"NT LM 0.12" string) then the setting of the per packet flag smb_flag
FLAG_CASELESS_PATHNAMES is taken into account per packet. This allows
the linux CIFS client to use Samba in a case sensitive manner.
Additional command in smbclient "case_sensitive", toggles the
flag in subsequent packets.
Docs to follow.
Jeremy.
(This used to be commit cf84c0fe1a061acc0313f7db124b8f947cdf623d)

7 files changed, 48 insertions, 16 deletions

diff --git a/source3/smbd/blocking.c b/source3/smbd/blocking.c
index c0512d5539..3983a4cbdf 100644
--- a/source3/smbd/blocking.c
+++ b/source3/smbd/blocking.c
@@ -680,7 +680,7 @@ void process_blocking_lock_queue(time_t t)
 			continue;
 		}
 
-		if(!set_current_service(conn,True)) {
+		if(!set_current_service(conn,SVAL(blr->inbuf,smb_flg),True)) {
 			DEBUG(0,("process_blocking_lock_queue: Unable to become service Error was %s.\n", strerror(errno) ));
 			/*
 			 * Remove the entry and return an error to the client.
diff --git a/source3/smbd/conn.c b/source3/smbd/conn.c
index e083e14426..34e19a3ca6 100644
--- a/source3/smbd/conn.c
+++ b/source3/smbd/conn.c
@@ -161,7 +161,7 @@ void conn_close_all(void)
 	connection_struct *conn, *next;
 	for (conn=Connections;conn;conn=next) {
 		next=conn->next;
-		set_current_service(conn, True);
+		set_current_service(conn, 0, True);
 		close_cnum(conn, conn->vuid);
 	}
 }
diff --git a/source3/smbd/negprot.c b/source3/smbd/negprot.c
index 1843c174bb..5ff53f6300 100644
--- a/source3/smbd/negprot.c
+++ b/source3/smbd/negprot.c
@@ -401,8 +401,9 @@ protocol [LANMAN2.1]
 #define ARCH_WIN2K    0xC      /* Win2K is like NT */
 #define ARCH_OS2      0x14     /* Again OS/2 is like NT */
 #define ARCH_SAMBA    0x20
+#define ARCH_CIFSFS   0x40
  
-#define ARCH_ALL      0x3F
+#define ARCH_ALL      0x7F
  
 /* List of supported protocols, most desired first */
 static const struct {
@@ -413,6 +414,7 @@ static const struct {
 } supported_protocols[] = {
 	{"NT LANMAN 1.0",           "NT1",      reply_nt1,      PROTOCOL_NT1},
 	{"NT LM 0.12",              "NT1",      reply_nt1,      PROTOCOL_NT1},
+	{"POSIX 2",                 "NT1",      reply_nt1,      PROTOCOL_NT1},
 	{"LM1.2X002",               "LANMAN2",  reply_lanman2,  PROTOCOL_LANMAN2},
 	{"Samba",                   "LANMAN2",  reply_lanman2,  PROTOCOL_LANMAN2},
 	{"DOS LM1.2X002",           "LANMAN2",  reply_lanman2,  PROTOCOL_LANMAN2},
@@ -460,7 +462,7 @@ int reply_negprot(connection_struct *conn,
 		else if (strcsequal(p,"DOS LANMAN2.1"))
 			arch &= ( ARCH_WFWG | ARCH_WIN95 );
 		else if (strcsequal(p,"NT LM 0.12"))
-			arch &= ( ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K );
+			arch &= ( ARCH_WIN95 | ARCH_WINNT | ARCH_WIN2K | ARCH_CIFSFS);
 		else if (strcsequal(p,"LANMAN2.1"))
 			arch &= ( ARCH_WINNT | ARCH_WIN2K | ARCH_OS2 );
 		else if (strcsequal(p,"LM1.2X002"))
@@ -472,12 +474,23 @@ int reply_negprot(connection_struct *conn,
 		else if (strcsequal(p,"Samba")) {
 			arch = ARCH_SAMBA;
 			break;
+		} else if (strcsequal(p,"POSIX 2")) {
+			arch = ARCH_CIFSFS;
+			break;
 		}
  
 		p += strlen(p) + 2;
 	}
-    
+
+	/* CIFSFS can send one arch only, NT LM 0.12. */
+	if (Index == 1 && (arch & ARCH_CIFSFS)) {
+		arch = ARCH_CIFSFS;
+	}
+
 	switch ( arch ) {
+		case ARCH_CIFSFS:
+			set_remote_arch(RA_CIFSFS);
+			break;
 		case ARCH_SAMBA:
 			set_remote_arch(RA_SAMBA);
 			break;
diff --git a/source3/smbd/notify_hash.c b/source3/smbd/notify_hash.c
index ec414454f9..843580f6ed 100644
--- a/source3/smbd/notify_hash.c
+++ b/source3/smbd/notify_hash.c
@@ -164,7 +164,7 @@ static BOOL hash_check_notify(connection_struct *conn, uint16 vuid, char *path,
 
 	if (!change_to_user(conn,vuid))
 		return True;
-	if (!set_current_service(conn,True)) {
+	if (!set_current_service(conn,FLAG_CASELESS_PATHNAMES,True)) {
 		change_to_root_user();
 		return True;
 	}
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index 05e4d0b1d9..72a604811b 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -934,7 +934,7 @@ static int switch_message(int type,char *inbuf,char *outbuf,int size,int bufsize
 			return(ERROR_DOS(ERRSRV,ERRaccess));	    
 
 		/* load service specific parameters */
-		if (conn && !set_current_service(conn,(flags & (AS_USER|DO_CHDIR)?True:False)))
+		if (conn && !set_current_service(conn,SVAL(inbuf,smb_flg),(flags & (AS_USER|DO_CHDIR)?True:False)))
 			return(ERROR_DOS(ERRSRV,ERRaccess));
 
 		/* does this protocol need to be run as guest? */
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 343a835be8..c3e0da542e 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -494,18 +494,16 @@ BOOL reload_services(BOOL test)
 
 	load_interfaces();
 
-	{
-		if (smbd_server_fd() != -1) {      
-			set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
-			set_socket_options(smbd_server_fd(), user_socket_options);
-		}
+	if (smbd_server_fd() != -1) {      
+		set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
+		set_socket_options(smbd_server_fd(), user_socket_options);
 	}
 
 	mangle_reset_cache();
 	reset_stat_cache();
 
 	/* this forces service parameters to be flushed */
-	set_current_service(NULL,True);
+	set_current_service(NULL,0,True);
 
 	return(ret);
 }
diff --git a/source3/smbd/service.c b/source3/smbd/service.c
index 192a043bf5..3b499d5cc1 100644
--- a/source3/smbd/service.c
+++ b/source3/smbd/service.c
@@ -28,10 +28,11 @@ extern userdom_struct current_user_info;
  Load parameters specific to a connection/service.
 ****************************************************************************/
 
-BOOL set_current_service(connection_struct *conn,BOOL do_chdir)
+BOOL set_current_service(connection_struct *conn, uint16 flags, BOOL do_chdir)
 {
 	extern char magic_char;
 	static connection_struct *last_conn;
+	static uint16 last_flags;
 	int snum;
 
 	if (!conn)  {
@@ -51,10 +52,24 @@ BOOL set_current_service(connection_struct *conn,BOOL do_chdir)
 		return(False);
 	}
 
-	if (conn == last_conn)
+	if ((conn == last_conn) && (last_flags == flags)) {
 		return(True);
+	}
 
 	last_conn = conn;
+	last_flags = flags;
+	
+	/* Obey the client case sensitivity requests - only for clients that support it. */
+	if (lp_casesensitive(snum) == Auto) {
+		/* We need this uglyness due to DOS/Win9x clients that lie about case insensitivity. */
+		enum remote_arch_types ra_type = get_remote_arch();
+		if ((ra_type != RA_SAMBA) && (ra_type != RA_CIFSFS)) {
+			/* Client can't support per-packet case sensitive pathnames. */
+			conn->case_sensitive = False;
+		} else {
+			conn->case_sensitive = !(flags & FLAG_CASELESS_PATHNAMES);
+		}
+	}
 
 	magic_char = lp_magicchar(snum);
 	return(True);
@@ -347,7 +362,13 @@ static connection_struct *make_connection_snum(int snum, user_struct *vuser,
 	conn->dirptr = NULL;
 
 	/* Case options for the share. */
-	conn->case_sensitive = lp_casesensitive(snum);
+	if (lp_casesensitive(snum) == Auto) {
+		/* We will be setting this per packet. Set to be case insensitive for now. */
+		conn->case_sensitive = False;
+	} else {
+		conn->case_sensitive = (BOOL)lp_casesensitive(snum);
+	}
+
 	conn->case_preserve = lp_preservecase(snum);
 	conn->short_case_preserve = lp_shortpreservecase(snum);