r9449: Add simple utility for dumping Samba3 domain information. Currently

only prints rids and usernames of users in passdb database.

Update plan
(This used to be commit 651d06728fb21393c15268ea47689c738c2c6b86)

5 files changed, 167 insertions, 14 deletions

diff --git a/source4/lib/samba3/PLAN b/source4/lib/samba3/PLAN
index 6e83e8fc33..6076141ac0 100644
--- a/source4/lib/samba3/PLAN
+++ b/source4/lib/samba3/PLAN
@@ -7,8 +7,11 @@ Three possible viable approaches:
 
   (one-way upgrades can be done by using ldbsearch -a on these dynamically
   generated ldb's)
+  Since TDB's are local, there isn't much point in writing back backwards 
+  compatible data.
 
  2) samr "mapping" backend (alternative for samr.ldb) (two-way)
+    This would allow users to keep mixed domains containing Samba3 and Samba4.
 
  3) The vampire way of doing things (one-way)
   - samba3 pidl backend 
diff --git a/source4/lib/samba3/config.mk b/source4/lib/samba3/config.mk
index 43608577c5..5045901b3b 100644
--- a/source4/lib/samba3/config.mk
+++ b/source4/lib/samba3/config.mk
@@ -7,4 +7,12 @@ INIT_OBJ_FILES = \
 # End SUBSYSTEM LIBSAMBA3
 ################################################
 
-
+################################################
+# Start BINARY samba3dump
+[BINARY::samba3dump]
+INSTALLDIR = BINDIR
+INIT_OBJ_FILES = \
+		lib/samba3/samba3dump.o
+REQUIRED_SUBSYSTEMS = LIBBASIC LIBCMDLINE LIBSAMBA3
+# End BINARY samba3dump
+################################################
diff --git a/source4/lib/samba3/sam.h b/source4/lib/samba3/sam.h
index 11a9f42ec7..bc13b28e2a 100644
--- a/source4/lib/samba3/sam.h
+++ b/source4/lib/samba3/sam.h
@@ -21,6 +21,8 @@
 #ifndef _SAMBA3_SAM_H /* _SAMBA3_SAM_H */
 #define _SAMBA3_SAM_H 
 
+#include "librpc/gen_ndr/security.h"
+
 struct samba3_samaccount {
 	uint32_t logon_time,
 		logoff_time,
@@ -49,4 +51,28 @@ struct samba3_samaccount {
 	uint8_t	*hours;
 };
 
+/* SID Types */
+enum SID_NAME_USE
+{
+	SID_NAME_USE_NONE = 0,
+	SID_NAME_USER    = 1, /* user */
+	SID_NAME_DOM_GRP,     /* domain group */
+	SID_NAME_DOMAIN,      /* domain sid */
+	SID_NAME_ALIAS,       /* local group */
+	SID_NAME_WKN_GRP,     /* well-known group */
+	SID_NAME_DELETED,     /* deleted account: needed for c2 rating */
+	SID_NAME_INVALID,     /* invalid account */
+	SID_NAME_UNKNOWN,     /* unknown sid type */
+	SID_NAME_COMPUTER     /* sid for a computer */
+};
+
+struct samba3_groupmapping {
+	struct pdb_methods *methods;
+	gid_t gid;
+	struct dom_sid *sid;
+	enum SID_NAME_USE sid_name_use;
+	const char *nt_name;
+	const char *comment;
+};
+
 #endif /* _SAMBA3_SAM_H */
diff --git a/source4/lib/samba3/samba3dump.c b/source4/lib/samba3/samba3dump.c
new file mode 100644
index 0000000000..4071ba1bf9
--- /dev/null
+++ b/source4/lib/samba3/samba3dump.c
@@ -0,0 +1,75 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Samba3 database dump utility
+
+    Copyright (C) Jelmer Vernooij	2005
+   
+   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"
+#include "lib/samba3/sam.h"
+#include "lib/cmdline/popt_common.h"
+
+static const char *libdir = "/var/lib/samba";
+
+static NTSTATUS print_sam(void)
+{
+	struct samba3_samaccount *accounts;
+	uint32_t count, i;
+	char *tdbsam_file;
+	NTSTATUS status;
+	
+	asprintf(&tdbsam_file, "%s/passdb.tdb", libdir);
+
+	printf("Opening TDB sam %s\n", tdbsam_file);
+
+	status = samba3_read_tdbsam(NULL, tdbsam_file, &accounts, &count);
+	if (NT_STATUS_IS_ERR(status)) {
+		fprintf(stderr, "Error reading tdbsam database %s\n", tdbsam_file);
+		return status;
+	}
+
+	for (i = 0; i < count; i++) {
+		printf("%d: %s\n", accounts[i].user_rid, accounts[i].username);
+	}
+
+	return NT_STATUS_OK;
+}
+ 
+int main(int argc, char **argv)
+{
+	int opt;
+	poptContext pc;
+	struct poptOption long_options[] = {
+		POPT_AUTOHELP
+		{ "libdir", 0, POPT_ARG_STRING, &libdir, 'l', "Set libdir [/var/lib/samba]", "LIBDIR" },
+		POPT_COMMON_SAMBA
+		POPT_TABLEEND
+	};
+
+	pc = poptGetContext(argv[0], argc, (const char **) argv, long_options,0);
+
+	poptSetOtherOptionHelp(pc, "<smb.conf>");
+
+	while((opt = poptGetNextOpt(pc)) != -1) {
+	}
+
+	print_sam();
+
+	poptFreeContext(pc);
+
+	return 0;
+}
diff --git a/source4/lib/samba3/tdbsam.c b/source4/lib/samba3/tdbsam.c
index 0b2f975441..a16c07d2d1 100644
--- a/source4/lib/samba3/tdbsam.c
+++ b/source4/lib/samba3/tdbsam.c
@@ -26,6 +26,7 @@
 
 #include "includes.h"
 #include "system/iconv.h"
+#include "system/filesys.h"
 #include "lib/tdb/include/tdbutil.h"
 #include "lib/samba3/sam.h"
 
@@ -37,18 +38,18 @@
 /**
  * Open the TDB passwd database, check version and convert it if needed.
  * @param name filename of the tdbsam file.
- * @param open_flags file access mode.
+ * @param version version of the tdbsam database
  * @return a TDB_CONTEXT handle on the tdbsam file.
  **/
 
-static TDB_CONTEXT * tdbsam_open (const char *name, int open_flags, int32_t *version)
+static TDB_CONTEXT *tdbsam_open (const char *name, int32_t *version)
 {
 	TDB_CONTEXT 	*pdb_tdb;
 	
 	/* Try to open tdb passwd */
 	if (!(pdb_tdb = tdb_open(name, 0, TDB_DEFAULT, 
-				     open_flags, 0600))) {
-		DEBUG(0, ("Unable to open/create TDB passwd\n"));
+				     O_RDONLY, 0600))) {
+		DEBUG(0, ("Unable to open TDB passwd\n"));
 		return NULL;
 	}
 
@@ -69,7 +70,7 @@ static TDB_CONTEXT * tdbsam_open (const char *name, int open_flags, int32_t *ver
 	return pdb_tdb;
 }
 
-static BOOL init_sam_from_buffer_v0(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, uint8_t *buf, uint32_t buflen)
+static BOOL init_sam_from_buffer_v0(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, TDB_DATA buf)
 {
 	uint32_t	username_len, domain_len, nt_username_len,
 		dir_drive_len, unknown_str_len, munged_dial_len,
@@ -80,13 +81,13 @@ static BOOL init_sam_from_buffer_v0(TDB_CONTEXT *tdb, struct samba3_samaccount *
 	uint32_t		len = 0;
 	uint32_t		lm_pw_len, nt_pw_len, hourslen;
 	
-	if(sampass == NULL || buf == NULL) {
+	if(sampass == NULL || buf.dptr == NULL) {
 		DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
 		return False;
 	}
 
 	/* unpack the buffer into variables */
-	len = tdb_unpack (tdb, (char *)buf, buflen, TDB_FORMAT_STRING_V0,
+	len = tdb_unpack (tdb, (char *)buf.dptr, buf.dsize, TDB_FORMAT_STRING_V0,
 		&sampass->logon_time,					/* d */
 		&sampass->logoff_time,					/* d */
 		&sampass->kickoff_time,					/* d */
@@ -133,7 +134,7 @@ static BOOL init_sam_from_buffer_v0(TDB_CONTEXT *tdb, struct samba3_samaccount *
 	return True;
 }
 
-static BOOL init_sam_from_buffer_v1(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, uint8_t *buf, uint32_t buflen)
+static BOOL init_sam_from_buffer_v1(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, TDB_DATA buf)
 {
 	uint32_t	username_len, domain_len, nt_username_len,
 		dir_drive_len, unknown_str_len, munged_dial_len,
@@ -144,13 +145,13 @@ static BOOL init_sam_from_buffer_v1(TDB_CONTEXT *tdb, struct samba3_samaccount *
 	uint32_t		len = 0;
 	uint32_t		lm_pw_len, nt_pw_len, hourslen;
 	
-	if(sampass == NULL || buf == NULL) {
+	if(sampass == NULL || buf.dptr == NULL) {
 		DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
 		return False;
 	}
 
 	/* unpack the buffer into variables */
-	len = tdb_unpack (tdb, (char *)buf, buflen, TDB_FORMAT_STRING_V1,
+	len = tdb_unpack (tdb, (char *)buf.dptr, buf.dsize, TDB_FORMAT_STRING_V1,
 		&sampass->logon_time,					/* d */
 		&sampass->logoff_time,					/* d */
 		&sampass->kickoff_time,				/* d */
@@ -199,7 +200,7 @@ static BOOL init_sam_from_buffer_v1(TDB_CONTEXT *tdb, struct samba3_samaccount *
 	return True;
 }
 
-static BOOL init_sam_from_buffer_v2(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, uint8_t *buf, uint32_t buflen)
+static BOOL init_sam_from_buffer_v2(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, TDB_DATA buf)
 {
 	uint32_t	username_len, domain_len, nt_username_len,
 		dir_drive_len, unknown_str_len, munged_dial_len,
@@ -209,13 +210,13 @@ static BOOL init_sam_from_buffer_v2(TDB_CONTEXT *tdb, struct samba3_samaccount *
 	uint32_t		len = 0;
 	uint32_t		lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
 	
-	if(sampass == NULL || buf == NULL) {
+	if(sampass == NULL || buf.dptr == NULL) {
 		DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
 		return False;
 	}
 
 	/* unpack the buffer into variables */
-	len = tdb_unpack (tdb, (char *)buf, buflen, TDB_FORMAT_STRING_V2,
+	len = tdb_unpack (tdb, (char *)buf.dptr, buf.dsize, TDB_FORMAT_STRING_V2,
 		&sampass->logon_time,					/* d */
 		&sampass->logoff_time,					/* d */
 		&sampass->kickoff_time,					/* d */
@@ -264,3 +265,43 @@ static BOOL init_sam_from_buffer_v2(TDB_CONTEXT *tdb, struct samba3_samaccount *
 
 	return True;
 }
+
+NTSTATUS samba3_read_tdbsam(TALLOC_CTX *ctx, const char *filename, struct samba3_samaccount **accounts, uint32_t *count)
+{
+	int32_t version;
+	TDB_CONTEXT *tdb = tdbsam_open(filename, &version);
+	TDB_DATA key, val;
+
+	if (tdb == NULL)
+		return NT_STATUS_UNSUCCESSFUL;
+
+	if (version < 0 || version > 2) {
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+	
+	*accounts = NULL;
+	*count = 0;
+
+	for (key = tdb_firstkey(tdb); key.dptr; key = tdb_nextkey(tdb, key))
+	{
+		if (strncmp(key.dptr, "RID/", 4) == 0) continue;
+
+		val = tdb_fetch(tdb, key);
+
+		*accounts = talloc_realloc(ctx, *accounts, struct samba3_samaccount, (*count)+1);
+
+		switch (version) 
+		{
+			case 0: init_sam_from_buffer_v0(tdb, &(*accounts)[*count], val); break;
+			case 1: init_sam_from_buffer_v1(tdb, &(*accounts)[*count], val); break;
+			case 2: init_sam_from_buffer_v2(tdb, &(*accounts)[*count], val); break;
+
+		}
+
+		(*count)++;
+	}
+	
+	tdb_close(tdb);
+	
+	return NT_STATUS_OK;
+}