コード例 #1
0
ファイル: net_groupmap.c プロジェクト: srimalik/samba
static int net_groupmap_modify(struct net_context *c, int argc, const char **argv)
{
	struct dom_sid sid;
	GROUP_MAP *map = NULL;
	fstring ntcomment = "";
	fstring type = "";
	fstring ntgroup = "";
	fstring unixgrp = "";
	fstring sid_string = "";
	enum lsa_SidType sid_type = SID_NAME_UNKNOWN;
	int i;
	gid_t gid;
	const char modify_usage_str[] = N_("net groupmap modify "
					   "{ntgroup=<string>|sid=<SID>} "
					   "[comment=<string>] "
					   "[unixgroup=<string>] "
					   "[type=<domain|local>]");

	if (c->display_usage) {
		d_printf("%s\n%s\n", _("Usage:\n"), modify_usage_str);
		return 0;
	}

	/* get the options */
	for ( i=0; i<argc; i++ ) {
		if ( !strncasecmp_m(argv[i], "ntgroup", strlen("ntgroup")) ) {
			fstrcpy( ntgroup, get_string_param( argv[i] ) );
			if ( !ntgroup[0] ) {
				d_fprintf(stderr, _("must supply a name\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "sid", strlen("sid")) ) {
			fstrcpy( sid_string, get_string_param( argv[i] ) );
			if ( !sid_string[0] ) {
				d_fprintf(stderr, _("must supply a name\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "comment", strlen("comment")) ) {
			fstrcpy( ntcomment, get_string_param( argv[i] ) );
			if ( !ntcomment[0] ) {
				d_fprintf(stderr,
					  _("must supply a comment string\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "unixgroup", strlen("unixgroup")) ) {
			fstrcpy( unixgrp, get_string_param( argv[i] ) );
			if ( !unixgrp[0] ) {
				d_fprintf(stderr,
					  _("must supply a group name\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(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_fprintf(stderr, _("Bad option: %s\n"), argv[i]);
			return -1;
		}
	}

	if ( !ntgroup[0] && !sid_string[0] ) {
		d_printf("%s\n%s\n", _("Usage:\n"), modify_usage_str);
		return -1;
	}

	/* give preference to the SID; if both the ntgroup name and SID
	   are defined, use the SID and assume that the group name could be a
	   new name */

	if ( sid_string[0] ) {
		if (!get_sid_from_input(&sid, sid_string)) {
			return -1;
		}
	}
	else {
		if (!get_sid_from_input(&sid, ntgroup)) {
			return -1;
		}
	}

	map = talloc_zero(NULL, GROUP_MAP);
	if (!map) {
		return -1;
	}

	/* Get the current mapping from the database */
	if(!pdb_getgrsid(map, sid)) {
		d_fprintf(stderr,
			 _("Failed to find local group SID in the database\n"));
		TALLOC_FREE(map);
		return -1;
	}

	/*
	 * Allow changing of group type only between domain and local
	 * We disallow changing Builtin groups !!! (SID problem)
	 */
	if (sid_type == SID_NAME_UNKNOWN) {
		d_fprintf(stderr, _("Can't map to an unknown group type.\n"));
		TALLOC_FREE(map);
		return -1;
        }

	if (map->sid_name_use == SID_NAME_WKN_GRP) {
		d_fprintf(stderr,
			  _("You can only change between domain and local "
			    "groups.\n"));
		TALLOC_FREE(map);
		return -1;
	}

	map->sid_name_use = sid_type;

	/* Change comment if new one */
	if (ntcomment[0]) {
		map->comment = talloc_strdup(map, ntcomment);
		if (!map->comment) {
			d_fprintf(stderr, _("Out of memory!\n"));
			return -1;
		}
	}

	if (ntgroup[0]) {
		map->nt_name = talloc_strdup(map, ntgroup);
		if (!map->nt_name) {
			d_fprintf(stderr, _("Out of memory!\n"));
			return -1;
		}
	}

	if ( unixgrp[0] ) {
		gid = nametogid( unixgrp );
		if ( gid == -1 ) {
			d_fprintf(stderr, _("Unable to lookup UNIX group %s.  "
					    "Make sure the group exists.\n"),
				unixgrp);
			TALLOC_FREE(map);
			return -1;
		}

		map->gid = gid;
	}

	if (!NT_STATUS_IS_OK(pdb_update_group_mapping_entry(map))) {
		d_fprintf(stderr, _("Could not update group database\n"));
		TALLOC_FREE(map);
		return -1;
	}

	d_printf(_("Updated mapping entry for %s\n"), map->nt_name);

	TALLOC_FREE(map);
	return 0;
}
コード例 #2
0
ファイル: devfs-posix.c プロジェクト: enzolovesbacon/vx32
static int
fswstat(Chan *c, uchar *buf, int n)
{
	char *elem, *path, *npath, *strs, *t;
	int nn;
	Dir d;
	UnixFd *ufd;

	if(n < 2)
		error(Ebadstat);

	nn = GBIT16((uchar*)buf);
	strs = smalloc(nn);
	if(convM2D(buf, n, &d, strs) != n){
		free(strs);
		error(Ebadstat);
	}
	
	path = fspath(c, nil);
	if(waserror()){
		free(path);
		free(strs);
		nexterror();
	}
	
	if(d.muid[0])
		error("cannot change muid");

	if(d.uid[0] || d.gid[0]){
		int uid, gid;
		
		uid = -1;
		gid = -1;
		if(d.uid[0] && (uid = nametouid(d.uid)) < 0)
			error("unknown uid");
		if(d.gid[0] && (gid = nametogid(d.gid)) < 0)
			error("unknown gid");
		if(chown(path, uid, gid) < 0)
			oserror();
	}
	
	ufd = c->aux;
	elem = lastelem(path);
	if(d.name[0] && strcmp(d.name, elem) != 0){
		if(strchr(d.name, '/'))
			error(Ebadarg);
		npath = smalloc(strlen(path)+strlen(d.name)+1);
		strcpy(npath, path);
		t = strrchr(npath, '/');
		strcpy(t+1, d.name);
		if(rename(path, npath) < 0){
			free(npath);
			oserror();
		}
		free(npath);
	}
	
	if(~d.mode != 0 && chmod(path, d.mode&0777) < 0)
		oserror();

	// TODO: Code to change uid, gid.
	
	poperror();
	return n;
}
コード例 #3
0
ファイル: net_groupmap.c プロジェクト: srimalik/samba
static int net_groupmap_add(struct net_context *c, int argc, const char **argv)
{
	struct dom_sid sid;
	fstring ntgroup = "";
	fstring unixgrp = "";
	fstring string_sid = "";
	fstring type = "";
	fstring ntcomment = "";
	enum lsa_SidType sid_type = SID_NAME_DOM_GRP;
	uint32 rid = 0;
	gid_t gid;
	int i;
	GROUP_MAP *map;

	const char *name_type;
	const char add_usage_str[] = N_("net groupmap add "
					"{rid=<int>|sid=<string>}"
					" unixgroup=<string> "
					"[type=<domain|local|builtin>] "
					"[ntgroup=<string>] "
					"[comment=<string>]");

	name_type = "domain group";

	if (c->display_usage) {
		d_printf("%s\n%s\n", _("Usage:\n"), add_usage_str);
		return 0;
	}

	/* get the options */
	for ( i=0; i<argc; i++ ) {
		if ( !strncasecmp_m(argv[i], "rid", strlen("rid")) ) {
			rid = get_int_param(argv[i]);
			if ( rid < DOMAIN_RID_ADMINS ) {
				d_fprintf(stderr,
					  _("RID must be greater than %d\n"),
					  (uint32)DOMAIN_RID_ADMINS-1);
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "unixgroup", strlen("unixgroup")) ) {
			fstrcpy( unixgrp, get_string_param( argv[i] ) );
			if ( !unixgrp[0] ) {
				d_fprintf(stderr,_( "must supply a name\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "ntgroup", strlen("ntgroup")) ) {
			fstrcpy( ntgroup, get_string_param( argv[i] ) );
			if ( !ntgroup[0] ) {
				d_fprintf(stderr, _("must supply a name\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "sid", strlen("sid")) ) {
			fstrcpy( string_sid, get_string_param( argv[i] ) );
			if ( !string_sid[0] ) {
				d_fprintf(stderr, _("must supply a SID\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(argv[i], "comment", strlen("comment")) ) {
			fstrcpy( ntcomment, get_string_param( argv[i] ) );
			if ( !ntcomment[0] ) {
				d_fprintf(stderr,
					  _("must supply a comment string\n"));
				return -1;
			}
		}
		else if ( !strncasecmp_m(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;
					name_type = "wellknown group";
					break;
				case 'd':
				case 'D':
					sid_type = SID_NAME_DOM_GRP;
					name_type = "domain group";
					break;
				case 'l':
				case 'L':
					sid_type = SID_NAME_ALIAS;
					name_type = "alias (local) group";
					break;
				default:
					d_fprintf(stderr,
						  _("unknown group type %s\n"),
						  type);
					return -1;
			}
		}
		else {
			d_fprintf(stderr, _("Bad option: %s\n"), argv[i]);
			return -1;
		}
	}

	if ( !unixgrp[0] ) {
		d_printf("%s\n%s\n", _("Usage:\n"), add_usage_str);
		return -1;
	}

	if ( (gid = nametogid(unixgrp)) == (gid_t)-1 ) {
		d_fprintf(stderr, _("Can't lookup UNIX group %s\n"), unixgrp);
		return -1;
	}

	map = talloc_zero(NULL, GROUP_MAP);
	if (!map) {
		return -1;
	}
	/* Default is domain group. */
	map->sid_name_use = SID_NAME_DOM_GRP;
	if (pdb_getgrgid(map, gid)) {
		d_printf(_("Unix group %s already mapped to SID %s\n"),
			 unixgrp, sid_string_tos(&map->sid));
		TALLOC_FREE(map);
		return -1;
	}
	TALLOC_FREE(map);

	if ( (rid == 0) && (string_sid[0] == '\0') ) {
		d_printf(_("No rid or sid specified, choosing a RID\n"));
		if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
			if (!pdb_new_rid(&rid)) {
				d_printf(_("Could not get new RID\n"));
			}
		} else {
			rid = algorithmic_pdb_gid_to_group_rid(gid);
		}
		d_printf(_("Got RID %d\n"), rid);
	}

	/* append the rid to our own domain/machine SID if we don't have a full SID */
	if ( !string_sid[0] ) {
		sid_compose(&sid, get_global_sam_sid(), rid);
		sid_to_fstring(string_sid, &sid);
	}

	if (!ntcomment[0]) {
		switch (sid_type) {
		case SID_NAME_WKN_GRP:
			fstrcpy(ntcomment, "Wellknown Unix group");
			break;
		case SID_NAME_DOM_GRP:
			fstrcpy(ntcomment, "Domain Unix group");
			break;
		case SID_NAME_ALIAS:
			fstrcpy(ntcomment, "Local Unix group");
			break;
		default:
			fstrcpy(ntcomment, "Unix group");
			break;
		}
	}

	if (!ntgroup[0] )
		strlcpy(ntgroup, unixgrp, sizeof(ntgroup));

	if (!NT_STATUS_IS_OK(add_initial_entry(gid, string_sid, sid_type, ntgroup, ntcomment))) {
		d_fprintf(stderr, _("adding entry for group %s failed!\n"), ntgroup);
		return -1;
	}

	d_printf(_("Successfully added group %s to the mapping db as a %s\n"),
		 ntgroup, name_type);
	return 0;
}