[merge from SAMBA_3_0]

Merging smbgroupedit into 'net groupmap'.  Not entirely done.
Need to check on where the privilege code is sitting
and update the docs.

Examples:

root# bin/net help groupmap
net groupmap add
  Create a new group mapping
net groupmap modify
  Update a group mapping
net groupmap delete
  Remove a group mapping
net groupmap list
  List current group map

# bin/net groupmap add
Usage: net groupmap add rid=<int> name=<string> type=<domain|local|builtin> [comment=<string>]

# bin/net groupmap delete
Usage: net groupmap delete name=<string|SID>

# bin/net groupmap modify
Usage: net groupmap modify name=<string|SID> [comment=<string>] [type=<domain|local>]
(This used to be commit 0fd28bc3a803ca1ec3dcd8cc6236d4ecc3134584)

3 files changed, 453 insertions, 0 deletions

diff --git a/source3/utils/net.c b/source3/utils/net.c
index a2ce1f5f1a..b404bac595 100644
--- a/source3/utils/net.c
+++ b/source3/utils/net.c
@@ -348,6 +348,26 @@ static int net_file(int argc, const char **argv)
 	return net_rap_file(argc, argv);
 }
 
+/***********************************************************
+ migrated functionality from smbgroupedit
+ **********************************************************/
+static int net_groupmap(int argc, const char **argv)
+{
+	if ( 0 == argc )
+		return net_help_groupmap( argc, argv );
+
+	if ( !StrCaseCmp( argv[0], "add" ) )
+		return net_groupmap_add(argc-1, argv+1);
+	else if ( !StrCaseCmp( argv[0], "modify" ) )
+		return net_groupmap_modify(argc-1, argv+1);
+	else if ( !StrCaseCmp( argv[0], "delete" ) )
+		return net_groupmap_delete(argc-1, argv+1);
+	else if ( !StrCaseCmp( argv[0], "list" ) )
+		return net_groupmap_list(argc-1, argv+1);
+	
+	return net_help_groupmap( argc, argv );
+}
+
 /*
  Retrieve our local SID or the SID for the specified name
  */
@@ -509,6 +529,7 @@ static struct functable net_func[] = {
 	{"PRINTQ", net_rap_printq},
 	{"USER", net_user},
 	{"GROUP", net_group},
+	{"GROUPMAP", net_groupmap},
 	{"VALIDATE", net_rap_validate},
 	{"GROUPMEMBER", net_rap_groupmember},
 	{"ADMIN", net_rap_admin},
diff --git a/source3/utils/net_groupmap.c b/source3/utils/net_groupmap.c
new file mode 100644
index 0000000000..e248cd84f9
--- /dev/null
+++ b/source3/utils/net_groupmap.c
@@ -0,0 +1,411 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  RPC Pipe client / server routines
+ *  Copyright (C) Andrew Tridgell              1992-2000,
+ *  Copyright (C) Jean François Micouleau      1998-2001.
+ *  Copyright (C) Gerald Carter                2003.
+ *
+ *  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 "../utils/net.h"
+
+
+/*********************************************************
+ utility function to parse an integer parameter from 
+ "parameter = value"
+**********************************************************/
+static uint32 get_int_param( const char* param )
+{
+	char *p;
+	
+	p = strchr( param, '=' );
+	if ( !p )
+		return 0;
+		
+	return atoi(p+1);
+}
+
+/*********************************************************
+ utility function to parse an integer parameter from 
+ "parameter = value"
+**********************************************************/
+static char* get_string_param( const char* param )
+{
+	char *p;
+	
+	p = strchr( param, '=' );
+	if ( !p )
+		return NULL;
+		
+	return (p+1);
+}
+
+/*********************************************************
+ Figure out if the input was an NT group or a SID string.
+ Return the SID.
+**********************************************************/
+static BOOL get_sid_from_input(DOM_SID *sid, char *input)
+{
+	GROUP_MAP map;
+
+	if (StrnCaseCmp( input, "S-", 2)) {
+		/* Perhaps its the NT group name? */
+		if (!pdb_getgrnam(&map, input, MAPPING_WITHOUT_PRIV)) {
+			printf("NT Group %s doesn't exist in mapping DB\n", input);
+			return False;
+		} else {
+			*sid = map.sid;
+		}
+	} else {
+		if (!string_to_sid(sid, input)) {
+			printf("converting sid %s from a string failed!\n", input);
+			return False;
+		}
+	}
+	return True;
+}
+
+/*********************************************************
+ Dump a GROUP_MAP entry to stdout (long or short listing)
+**********************************************************/
+
+static void print_map_entry ( GROUP_MAP map, BOOL long_list )
+{
+	fstring string_sid;
+	fstring group_type;
+	fstring priv_text;
+	
+	decode_sid_name_use(group_type, map.sid_name_use);
+	sid_to_string(string_sid, &map.sid);
+	convert_priv_to_text(&(map.priv_set), priv_text);
+		
+	if (!long_list)
+		d_printf("%s (%s) -> %s\n", map.nt_name, string_sid, gidtoname(map.gid));
+	else {
+		d_printf("%s\n", map.nt_name);
+		d_printf("\tSID       : %s\n", string_sid);
+		d_printf("\tUnix group: %s\n", gidtoname(map.gid));
+		d_printf("\tGroup type: %s\n", group_type);
+		d_printf("\tComment   : %s\n", map.comment);
+		d_printf("\tPrivilege : %s\n\n", priv_text);
+	}
+
+}
+/*********************************************************
+ List the groups.
+**********************************************************/
+int net_groupmap_list(int argc, const char **argv)
+{
+	int entries;
+	BOOL long_list = False;
+	int i;
+	fstring ntgroup = "";
+	
+	/* get the options */
+	for ( i=0; i<argc; i++ ) {
+		if ( !StrCaseCmp(argv[i], "verbose")) {
+			long_list = True;
+		}
+		else if ( !StrnCaseCmp(argv[i], "name", strlen("name")) ) {
+			fstrcpy( ntgroup, get_string_param( argv[i] ) );
+			if ( !ntgroup[0] ) {
+				d_printf("must supply a name\n");
+				return -1;
+			}		
+		}
+		else {
+			d_printf("Bad option: %s\n", argv[i]);
+			return -1;
+		}
+	}
+
+	/* list a single group is given a name */
+	if ( ntgroup[0] ) {
+		DOM_SID sid;
+		GROUP_MAP map;
+			
+		if (!get_sid_from_input(&sid, ntgroup)) {
+			return -1;
+		}
+
+		/* Get the current mapping from the database */
+		if(!pdb_getgrsid(&map, sid, MAPPING_WITH_PRIV)) {
+			d_printf("Failure to local group SID in the database\n");
+			return -1;
+		}
+	
+		print_map_entry( map, long_list );
+		free_privilege(&(map.priv_set));	
+	}
+	else {
+		GROUP_MAP *map=NULL;
+		/* enumerate all group mappings */
+		if ( !pdb_enum_group_mapping(SID_NAME_UNKNOWN, &map, &entries, ENUM_ALL_MAPPED, MAPPING_WITH_PRIV) )
+			return -1;
+	
+		for (i=0; i<entries; i++) {
+			print_map_entry( map[i], long_list );
+			free_privilege(&(map[i].priv_set));
+		}
+	}
+
+	return 0;
+}
+
+/*********************************************************
+ Add a new group mapping entry
+**********************************************************/
+
+int net_groupmap_add(int argc, const char **argv)
+{
+	PRIVILEGE_SET se_priv;
+	DOM_SID sid;
+	fstring ntgroup = "";
+	fstring string_sid = "";
+	fstring type = "";
+	fstring ntcomment = "";
+	enum SID_NAME_USE sid_type = SID_NAME_UNKNOWN;
+	uint32 rid = 0;	
+	gid_t gid;
+	int i;
+	
+	/* get the options */
+	for ( i=0; i<argc; i++ ) {
+		if ( !StrnCaseCmp(argv[i], "rid", strlen("rid")) ) {
+			rid = get_int_param(argv[i]);
+			if ( rid < DOMAIN_GROUP_RID_ADMINS ) {
+				d_printf("RID must be greater than %d\n", (uint32)DOMAIN_GROUP_RID_ADMINS-1);
+				return -1;
+			}
+		}
+		else if ( !StrnCaseCmp(argv[i], "name", strlen("name")) ) {
+			fstrcpy( ntgroup, get_string_param( argv[i] ) );
+			if ( !ntgroup[0] ) {
+				d_printf("must supply a name\n");
+				return -1;
+			}		
+		}
+		else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
+			fstrcpy( ntcomment, get_string_param( argv[i] ) );
+			if ( !ntcomment[0] ) {
+				d_printf("must supply a comment string\n");
+				return -1;
+			}				
+		}
+		else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
+			fstrcpy( type, get_string_param( argv[i] ) );
+			switch ( type[0] ) {
+				case 'b':
+				case 'B':
+					sid_type = SID_NAME_WKN_GRP;
+					break;
+				case 'd':
+				case 'D':
+					sid_type = SID_NAME_DOM_GRP;
+					break;
+				case 'l':
+				case 'L':
+					sid_type = SID_NAME_ALIAS;
+					break;
+			}
+		}
+		else {
+			d_printf("Bad option: %s\n", argv[i]);
+			return -1;
+		}
+	}
+
+	if ( !ntgroup[0] || !rid || sid_type==SID_NAME_UNKNOWN ) {
+		d_printf("Usage: net groupmap add rid=<int> name=<string> type=<domain|local|builtin> [comment=<string>]\n");
+		return -1;
+	}
+	
+	sid_copy(&sid, get_global_sam_sid());
+	sid_append_rid(&sid, rid);
+	sid_to_string(string_sid, &sid);
+
+	if (ntcomment[0])
+		fstrcpy(ntcomment, "Local Unix group");
+		
+	if ( !(gid = nametogid(ntgroup)) ) {
+		d_printf("Can't lookup UNIX group %s\n", ntgroup);
+		return -1;
+	}
+	
+	init_privilege(&se_priv);
+#if 0
+	if (privilege!=NULL)
+		convert_priv_from_text(&se_priv, privilege);
+#endif
+
+	if (!add_initial_entry(gid, string_sid, sid_type, ntgroup,
+			      ntcomment, se_priv, PR_ACCESS_FROM_NETWORK) ) {
+		d_printf("adding entry for group %s failed!\n", ntgroup);
+		return -1;
+	}
+
+	free_privilege(&se_priv);
+		
+	d_printf("Successully added group %s to the mapping db\n", ntgroup);
+	return 0;
+}
+
+int net_groupmap_modify(int argc, const char **argv)
+{
+	DOM_SID sid;
+	GROUP_MAP map;
+	fstring ntcomment = "";
+	fstring type = "";
+	fstring ntgroup = "";
+	enum SID_NAME_USE sid_type = SID_NAME_UNKNOWN;
+	int i;
+
+	/* get the options */
+	for ( i=0; i<argc; i++ ) {
+		if ( !StrnCaseCmp(argv[i], "name", strlen("name")) ) {
+			fstrcpy( ntgroup, get_string_param( argv[i] ) );
+			if ( !ntgroup[0] ) {
+				d_printf("must supply a name\n");
+				return -1;
+			}		
+		}
+		else if ( !StrnCaseCmp(argv[i], "comment", strlen("comment")) ) {
+			fstrcpy( ntcomment, get_string_param( argv[i] ) );
+			if ( !ntcomment[0] ) {
+				d_printf("must supply a comment string\n");
+				return -1;
+			}				
+		}
+		else if ( !StrnCaseCmp(argv[i], "type", strlen("type")) )  {
+			fstrcpy( type, get_string_param( argv[i] ) );
+			switch ( type[0] ) {
+				case 'd':
+				case 'D':
+					sid_type = SID_NAME_DOM_GRP;
+					break;
+				case 'l':
+				case 'L':
+					sid_type = SID_NAME_ALIAS;
+					break;
+			}
+		}
+		else {
+			d_printf("Bad option: %s\n", argv[i]);
+			return -1;
+		}
+	}
+	
+	if ( !ntgroup[0] ) {
+		d_printf("Usage: net groupmap modify name=<string|SID> [comment=<string>] [type=<domain|local>\n");
+		return -1;
+	}
+	
+	if (!get_sid_from_input(&sid, ntgroup)) {
+		return -1;
+	}
+
+	/* Get the current mapping from the database */
+	if(!pdb_getgrsid(&map, sid, MAPPING_WITH_PRIV)) {
+		d_printf("Failure to local group SID in the database\n");
+		return -1;
+	}
+	
+	/*
+	 * Allow changing of group type only between domain and local
+	 * We disallow changing Builtin groups !!! (SID problem)
+	 */ 
+	if (sid_type==SID_NAME_ALIAS 
+	    || sid_type==SID_NAME_DOM_GRP 
+	    || sid_type==SID_NAME_UNKNOWN) 
+	{
+		if (map.sid_name_use==SID_NAME_ALIAS 
+		    || map.sid_name_use==SID_NAME_DOM_GRP
+		    || map.sid_name_use==SID_NAME_UNKNOWN) 
+		{
+			map.sid_name_use=sid_type;
+		} else {
+			printf("cannot change group type to builtin\n");
+		};
+	} else {
+		printf("cannot change group type from builtin\n");
+	}
+
+	/* Change comment if new one */
+	if ( ntcomment[0] )
+		fstrcpy( map.comment, ntcomment );
+
+#if 0
+	/* Change the privilege if new one */
+	if (privilege!=NULL)
+		convert_priv_from_text(&map.priv_set, privilege);
+#endif
+
+	if ( !pdb_update_group_mapping_entry(&map) ) {
+		d_printf("Could not update group database\n");
+		free_privilege(&map.priv_set);
+		return -1;
+	}
+	
+	free_privilege(&map.priv_set);
+	
+	d_printf("Updated mapping entry for %s\n", ntgroup);
+
+	return 0;
+}
+
+int net_groupmap_delete(int argc, const char **argv)
+{
+	DOM_SID sid;
+	fstring ntgroup = "";
+	int i;
+
+	/* get the options */
+	for ( i=0; i<argc; i++ ) {
+		if ( !StrnCaseCmp(argv[i], "name", strlen("name")) ) {
+			fstrcpy( ntgroup, get_string_param( argv[i] ) );
+			if ( !ntgroup[0] ) {
+				d_printf("must supply a name\n");
+				return -1;
+			}		
+		}
+		else {
+			d_printf("Bad option: %s\n", argv[i]);
+			return -1;
+		}
+	}
+	
+	if ( !ntgroup[0] ) {
+		d_printf("Usage: net groupmap delete name=<string|SID>\n");
+		return -1;
+	}
+	
+	if ( !get_sid_from_input(&sid, ntgroup) ) {
+		d_printf("Unable to resolve group %s to a SID\n", ntgroup);
+		return -1;
+	}
+
+	if ( !pdb_delete_group_mapping_entry(sid) ) {
+		printf("Failed to removing group %s from the mapping db!\n", ntgroup);
+		return -1;
+	}
+
+	d_printf("Sucessfully removed %s from the mapping db\n", ntgroup);
+
+	return 0;
+}
+
diff --git a/source3/utils/net_help.c b/source3/utils/net_help.c
index 07409aec22..f24367f246 100644
--- a/source3/utils/net_help.c
+++ b/source3/utils/net_help.c
@@ -99,6 +99,25 @@ int net_help_group(int argc, const char **argv)
 	return -1;
 }
 
+int net_help_groupmap(int argc, const char **argv)
+{
+	if (getuid() != 0) {
+		d_printf("You must be root to edit group mappings.\nExiting...\n");
+		return -1;
+	}
+	
+	d_printf("net groupmap add"\
+		"\n  Create a new group mapping\n");
+	d_printf("net groupmap modify"\
+		"\n  Update a group mapping\n");
+	d_printf("net groupmap delete"\
+		"\n  Remove a group mapping\n");
+	d_printf("net groupmap list"\
+		"\n  List current group map\n");
+	
+	return -1;
+}
+
 
 int net_help_join(int argc, const char **argv)
 {
@@ -152,6 +171,7 @@ static int net_usage(int argc, const char **argv)
 		 "  net lookup\t\tto lookup host name or ip address\n"\
 		 "  net user\t\tto manage users\n"\
 		 "  net group\t\tto manage groups\n"\
+		 "  net groupmap\t\tto manage group mappings\n"\
 		 "  net join\t\tto join a domain\n"\
 		 "  net cache\t\tto operate on cache tdb file\n"\
 		 "  net getlocalsid [NAME]\tto get the SID for local name\n"\
@@ -184,6 +204,7 @@ int net_help(int argc, const char **argv)
 		{"PRINTQ", net_rap_printq_usage},
 		{"USER", net_help_user},
 		{"GROUP", net_help_group},
+		{"GROUPMAP", net_help_groupmap},
 		{"JOIN", net_help_join},
 		{"VALIDATE", net_rap_validate_usage},
 		{"GROUPMEMBER", net_rap_groupmember_usage},