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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
return True;
}
-/* Fill in the group membership field of a NT group given by group_sid */
+/***********************************************************************
+ If "enum users" is set to false, and the group being looked
+ up is the Domain Users SID: S-1-5-domain-513, then for the
+ list of members check if the querying user is in that group,
+ and if so only return that user as the gr_mem array.
+ We can change this to a different parameter than "enum users"
+ if neccessaey, or parameterize the group list we do this for.
+***********************************************************************/
+
+static BOOL fill_grent_mem_domusers( TALLOC_CTX *mem_ctx,
+ struct winbindd_domain *domain,
+ struct winbindd_cli_state *state,
+ DOM_SID *group_sid,
+ enum lsa_SidType group_name_type,
+ size_t *num_gr_mem, char **gr_mem,
+ size_t *gr_mem_len)
+{
+ DOM_SID querying_user_sid;
+ DOM_SID *pquerying_user_sid = NULL;
+ uint32 num_groups = 0;
+ DOM_SID *user_sids = NULL;
+ BOOL u_in_group = False;
+ NTSTATUS status;
+ int i;
+ unsigned int buf_len = 0;
+ char *buf = NULL;
+
+ DEBUG(10,("fill_grent_mem_domain_users: domain %s\n",
+ domain->name ));
+
+ if (state) {
+ uid_t ret_uid = (uid_t)-1;
+ if (sys_getpeereid(state->sock, &ret_uid)==0) {
+ /* We know who's asking - look up their SID if
+ it's one we've mapped before. */
+ status = idmap_uid_to_sid(&querying_user_sid, ret_uid);
+ if (NT_STATUS_IS_OK(status)) {
+ pquerying_user_sid = &querying_user_sid;
+ DEBUG(10,("fill_grent_mem_domain_users: querying uid %u -> %s\n",
+ (unsigned int)ret_uid,
+ sid_string_static(pquerying_user_sid) ));
+ }
+ }
+ }
+
+ /* Only look up if it was a winbindd user in this domain. */
+ if (pquerying_user_sid &&
+ (sid_compare_domain(pquerying_user_sid, &domain->sid) == 0)) {
+
+ DEBUG(10,("fill_grent_mem_domain_users: querying user = %s\n",
+ sid_string_static(pquerying_user_sid) ));
+
+ status = domain->methods->lookup_usergroups(domain,
+ mem_ctx,
+ pquerying_user_sid,
+ &num_groups,
+ &user_sids);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("fill_grent_mem_domain_users: lookup_usergroups failed "
+ "for sid %s in domain %s (error: %s)\n",
+ sid_string_static(pquerying_user_sid),
+ domain->name,
+ nt_errstr(status)));
+ return False;
+ }
+
+ for (i = 0; i < num_groups; i++) {
+ if (sid_equal(group_sid, &user_sids[i])) {
+ /* User is in Domain Users, add their name
+ as the only group member. */
+ u_in_group = True;
+ break;
+ }
+ }
+ }
+
+ if (u_in_group) {
+ size_t len = 0;
+ char *domainname = NULL;
+ char *username = NULL;
+ fstring name;
+ enum lsa_SidType type;
+
+ DEBUG(10,("fill_grent_mem_domain_users: sid %s in 'Domain Users' in domain %s\n",
+ sid_string_static(pquerying_user_sid), domain->name ));
+
+ status = domain->methods->sid_to_name(domain, mem_ctx,
+ pquerying_user_sid,
+ &domainname,
+ &username,
+ &type);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("could not lookup username for user "
+ "sid %s in domain %s (error: %s)\n",
+ sid_string_static(pquerying_user_sid),
+ domain->name,
+ nt_errstr(status)));
+ return False;
+ }
+ fill_domain_username(name, domain->name, username, True);
+ len = strlen(name);
+ buf_len = len + 1;
+ if (!(buf = (char *)SMB_MALLOC(buf_len))) {
+ DEBUG(1, ("out of memory\n"));
+ return False;
+ }
+ memcpy(buf, name, buf_len);
+
+ DEBUG(10,("fill_grent_mem_domain_users: user %s in "
+ "'Domain Users' in domain %s\n",
+ name, domain->name ));
+
+ /* user is the only member */
+ *num_gr_mem = 1;
+ }
+
+ *gr_mem = buf;
+ *gr_mem_len = buf_len;
+
+ DEBUG(10, ("fill_grent_mem_domain_users: num_mem = %u, len = %u, mem = %s\n",
+ (unsigned int)*num_gr_mem,
+ (unsigned int)buf_len, *num_gr_mem ? buf : "NULL"));
+
+ return True;
+}
+
+/***********************************************************************
+ Add names to a list. Assumes a canonical version of the string
+ in DOMAIN\user
+***********************************************************************/
+
+static int namecmp( const void *a, const void *b )
+{
+ return StrCaseCmp( * (char * const *) a, * (char * const *) b);
+}
+
+static NTSTATUS add_names_to_list( TALLOC_CTX *ctx,
+ char ***list, uint32 *n_list,
+ char **names, uint32 n_names )
+{
+ char **new_list = NULL;
+ uint32 n_new_list = 0;
+ int i, j;
+
+ if ( !names || (n_names == 0) )
+ return NT_STATUS_OK;
+
+ /* Alloc the maximum size we'll need */
+
+ if ( *list == NULL ) {
+ if ( (new_list = TALLOC_ARRAY( ctx, char *, n_names )) == NULL )
+ return NT_STATUS_NO_MEMORY;
+ n_new_list = n_names;
+ } else {
+ new_list = TALLOC_REALLOC_ARRAY( ctx, *list, char *,
+ (*n_list) + n_names );
+ if ( !new_list )
+ return NT_STATUS_NO_MEMORY;
+ n_new_list = (*n_list) + n_names;
+ }
+
+ /* Add all names */
+
+ for ( i=*n_list, j=0; i<n_new_list; i++, j++ ) {
+ new_list[i] = talloc_strdup( new_list, names[j] );
+ }
+
+ /* search for duplicates for sorting and looking for matching
+ neighbors */
+
+ qsort( new_list, n_new_list, sizeof(char*), QSORT_CAST namecmp );
+
+ for ( i=1; i<n_new_list; i++ ) {
+ if ( strcmp( new_list[i-1], new_list[i] ) == 0 ) {
+ memmove( &new_list[i-1], &new_list[i],
+ sizeof(char*)*(n_new_list-i) );
+ n_new_list--;
+ }
+ }
+
+ *list = new_list;
+ *n_list = n_new_list;
+
+ return NT_STATUS_OK;
+}
+
+/***********************************************************************
+***********************************************************************/
+
+static NTSTATUS expand_groups( TALLOC_CTX *ctx,
+ struct winbindd_domain *d,
+ DOM_SID *glist, uint32 n_glist,
+ DOM_SID **new_glist, uint32 *n_new_glist,
+ char ***members, uint32 *n_members )
+{
+ int i, j;
+ NTSTATUS status = NT_STATUS_OK;
+ uint32 num_names = 0;
+ uint32 *name_types = NULL;
+ char **names = NULL;
+ DOM_SID *sid_mem = NULL;
+ TALLOC_CTX *tmp_ctx = NULL;
+ DOM_SID *new_groups = NULL;
+ size_t new_groups_size = 0;
+
+ *members = NULL;
+ *n_members = 0;
+ *new_glist = NULL;
+ *n_new_glist = 0;
+
+ for ( i=0; i<n_glist; i++ ) {
+ tmp_ctx = talloc_new( ctx );
+
+ /* Lookup the group membership */
+
+ status = d->methods->lookup_groupmem(d, tmp_ctx,
+ &glist[i], &num_names,
+ &sid_mem, &names,
+ &name_types);
+ if ( !NT_STATUS_IS_OK(status) )
+ goto out;
+
+ /* Separate users and groups into two lists */
+
+ for ( j=0; j<num_names; j++ ) {
+
+ /* Users */
+ if ( name_types[j] == SID_NAME_USER ||
+ name_types[j] == SID_NAME_COMPUTER )
+ {
+ status = add_names_to_list( ctx, members,
+ n_members,
+ names+j, 1 );
+ if ( !NT_STATUS_IS_OK(status) )
+ goto out;
+
+ continue;
+ }
+
+ /* Groups */
+ if ( name_types[j] == SID_NAME_DOM_GRP ||
+ name_types[j] == SID_NAME_ALIAS )
+ {
+ BOOL ret;
+
+ ret = add_sid_to_array_unique( ctx,
+ &sid_mem[j],
+ &new_groups,
+ &new_groups_size );
+ if ( !ret ) {
+ status = NT_STATUS_NO_MEMORY;
+ goto out;
+ }
+
+ continue;
+ }
+ }
+
+ TALLOC_FREE( tmp_ctx );
+ }
+
+ *new_glist = new_groups;
+ *n_new_glist = (uint32)new_groups_size;
+
+ out:
+ TALLOC_FREE( tmp_ctx );
+
+ return status;
+}
+
+/***********************************************************************
+ Fill in the group membership field of a NT group given by group_sid
+***********************************************************************/
static BOOL fill_grent_mem(struct winbindd_domain *domain,
struct winbindd_cli_state *state,
enum lsa_SidType group_name_type,
size_t *num_gr_mem, char **gr_mem, size_t *gr_mem_len)
{
- DOM_SID *sid_mem = NULL;
uint32 num_names = 0;
- uint32 *name_types = NULL;
unsigned int buf_len = 0, buf_ndx = 0, i;
char **names = NULL, *buf = NULL;
BOOL result = False;
TALLOC_CTX *mem_ctx;
- NTSTATUS status;
uint32 group_rid;
- fstring sid_string;
+ DOM_SID *glist = NULL;
+ DOM_SID *new_glist = NULL;
+ uint32 n_glist, n_new_glist;
+ int max_depth = lp_winbind_expand_groups();
if (!(mem_ctx = talloc_init("fill_grent_mem(%s)", domain->name)))
return False;
- /* Initialise group membership information */
-
- DEBUG(10, ("group SID %s\n", sid_to_string(sid_string, group_sid)));
+ DEBUG(10, ("group SID %s\n", sid_string_static(group_sid)));
/* Initialize with no members */
+
*num_gr_mem = 0;
/* HACK ALERT!! This whole routine does not cope with group members
gr_mem, gr_mem_len);
goto done;
}
-
+
+ /* Verify name type */
+
if ( !((group_name_type==SID_NAME_DOM_GRP) ||
- ((group_name_type==SID_NAME_ALIAS) && domain->primary)) )
+ ((group_name_type==SID_NAME_ALIAS) && domain->primary)) )
{
DEBUG(1, ("SID %s in domain %s isn't a domain group (%d)\n",
- sid_to_string(sid_string, group_sid), domain->name,
+ sid_string_static(group_sid), domain->name,
group_name_type));
goto done;
}
- /* OPTIMIZATION / HACK. */
- /* If "enum users" is set to false, and the group being looked
- up is the Domain Users SID: S-1-5-domain-513, then for the
- list of members check if the querying user is in that group,
- and if so only return that user as the gr_mem array.
- We can change this to a different parameter than "enum users"
- if neccessaey, or parameterize the group list we do this for. */
+ /* OPTIMIZATION / HACK. See comment in
+ fill_grent_mem_domusers() */
sid_peek_rid( group_sid, &group_rid );
if (!lp_winbind_enum_users() && group_rid == DOMAIN_GROUP_RID_USERS) {
- DOM_SID querying_user_sid;
- DOM_SID *pquerying_user_sid = NULL;
- uint32 num_groups = 0;
- DOM_SID *user_sids = NULL;
- BOOL u_in_group = False;
-
- DEBUG(10,("fill_grent_mem: optimized lookup for sid %s domain %s\n",
- sid_to_string(sid_string, group_sid), domain->name ));
-
- if (state) {
- uid_t ret_uid = (uid_t)-1;
- if (sys_getpeereid(state->sock, &ret_uid)==0) {
- /* We know who's asking - look up their SID if
- it's one we've mapped before. */
- status = idmap_uid_to_sid(&querying_user_sid, ret_uid);
- if (NT_STATUS_IS_OK(status)) {
- pquerying_user_sid = &querying_user_sid;
- DEBUG(10,("fill_grent_mem: querying uid %u -> %s\n",
- (unsigned int)ret_uid,
- sid_to_string(sid_string, pquerying_user_sid) ));
- }
- }
- }
+ result = fill_grent_mem_domusers( mem_ctx, domain, state,
+ group_sid, group_name_type,
+ num_gr_mem, gr_mem,
+ gr_mem_len );
+ goto done;
+ }
- /* Only look up if it was a winbindd user in this domain. */
- if (pquerying_user_sid &&
- (sid_compare_domain(pquerying_user_sid, &domain->sid) == 0)) {
-
- DEBUG(10,("fill_grent_mem: querying user = %s\n",
- sid_to_string(sid_string, pquerying_user_sid) ));
-
- status = domain->methods->lookup_usergroups(domain,
- mem_ctx,
- pquerying_user_sid,
- &num_groups,
- &user_sids);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("fill_grent_mem: lookup_usergroups failed "
- "for sid %s in domain %s (error: %s)\n",
- sid_to_string(sid_string, pquerying_user_sid),
- domain->name,
- nt_errstr(status)));
- goto done;
- }
+ /* Real work goes here. Create a list of group names to
+ expand startign with the initial one. Pass that to
+ expand_groups() which returns a list of more group names
+ to expand. Do this up to the max search depth. */
- for (i = 0; i < num_groups; i++) {
- if (sid_equal(group_sid, &user_sids[i])) {
- /* User is in Domain Users, add their name
- as the only group member. */
- u_in_group = True;
- break;
- }
- }
- }
+ if ( (glist = TALLOC_ARRAY(mem_ctx, DOM_SID, 1 )) == NULL ) {
+ result = False;
+ DEBUG(0,("fill_grent_mem: talloc failure!\n"));
+ goto done;
+ }
+ sid_copy( &glist[0], group_sid );
+ n_glist = 1;
- if (u_in_group) {
- size_t len = 0;
- char *domainname = NULL;
- char *username = NULL;
- fstring name;
- enum lsa_SidType type;
+ for ( i=0; i<max_depth && glist; i++ ) {
+ uint32 n_members = 0;
+ char **members = NULL;
+ NTSTATUS nt_status;
- DEBUG(10,("fill_grent_mem: sid %s in 'Domain Users' in domain %s\n",
- sid_to_string(sid_string, pquerying_user_sid), domain->name ));
-
- status = domain->methods->sid_to_name(domain, mem_ctx,
- pquerying_user_sid,
- &domainname,
- &username,
- &type);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("could not lookup username for user "
- "sid %s in domain %s (error: %s)\n",
- sid_to_string(sid_string, pquerying_user_sid),
- domain->name,
- nt_errstr(status)));
- goto done;
- }
- fill_domain_username(name, domain->name, username, True);
- len = strlen(name);
- buf_len = len + 1;
- if (!(buf = (char *)SMB_MALLOC(buf_len))) {
- DEBUG(1, ("out of memory\n"));
- goto done;
- }
- memcpy(buf, name, buf_len);
-
- DEBUG(10,("fill_grent_mem: user %s in 'Domain Users' in domain %s\n",
- name, domain->name ));
+ nt_status = expand_groups( mem_ctx, domain,
+ glist, n_glist,
+ &new_glist, &n_new_glist,
+ &members, &n_members);
+ if ( !NT_STATUS_IS_OK(nt_status) ) {
+ result = False;
+ goto done;
+ }
+
+ /* Add new group members to list */
- /* user is the only member */
- *num_gr_mem = 1;
+ nt_status = add_names_to_list( mem_ctx, &names, &num_names,
+ members, n_members );
+ if ( !NT_STATUS_IS_OK(nt_status) ) {
+ result = False;
+ goto done;
}
- *gr_mem = buf;
- *gr_mem_len = buf_len;
+ TALLOC_FREE( members );
- DEBUG(10, ("num_mem = %u, len = %u, mem = %s\n", (unsigned int)*num_gr_mem,
- (unsigned int)buf_len, *num_gr_mem ? buf : "NULL"));
- result = True;
- goto done;
- }
-
- /* Lookup group members */
- status = domain->methods->lookup_groupmem(domain, mem_ctx, group_sid, &num_names,
- &sid_mem, &names, &name_types);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("could not lookup membership for group sid %s in domain %s (error: %s)\n",
- sid_to_string(sid_string, group_sid), domain->name, nt_errstr(status)));
- goto done;
- }
+ /* If we have no more groups to expand, break out
+ early */
- DEBUG(10, ("looked up %d names\n", num_names));
+ if ( !&new_glist )
+ break;
- if (DEBUGLEVEL >= 10) {
- for (i = 0; i < num_names; i++)
- DEBUG(10, ("\t%20s %s %d\n", names[i],
- sid_string_static(&sid_mem[i]),
- name_types[i]));
+ /* One more round */
+ TALLOC_FREE(glist);
+ glist = new_glist;
+ n_glist = n_new_glist;
}
-
- /* Add members to list */
+ TALLOC_FREE( glist );
+
+ DEBUG(10, ("looked up %d names\n", num_names));
again:
+ /* Add members to list */
for (i = 0; i < num_names; i++) {
- char *the_name;
- fstring name;
int len;
- the_name = names[i];
-
- DEBUG(10, ("processing name %s\n", the_name));
+ DEBUG(10, ("processing name %s\n", names[i]));
- /* FIXME: need to cope with groups within groups. These
- occur in Universal groups on a Windows 2000 native mode
- server. */
-
- /* make sure to allow machine accounts */
-
- if (name_types[i] != SID_NAME_USER && name_types[i] != SID_NAME_COMPUTER) {
- DEBUG(3, ("name %s isn't a domain user (%s)\n", the_name, sid_type_lookup(name_types[i])));
- continue;
- }
-
- /* Append domain name */
-
- fill_domain_username(name, domain->name, the_name, True);
-
- len = strlen(name);
+ len = strlen(names[i]);
/* Add to list or calculate buffer length */
(*num_gr_mem)++;
DEBUG(10, ("buf_len + %d = %d\n", len + 1, buf_len));
} else {
- DEBUG(10, ("appending %s at ndx %d\n", name, buf_ndx));
- safe_strcpy(&buf[buf_ndx], name, len);
+ DEBUG(10, ("appending %s at ndx %d\n", names[i], buf_ndx));
+ safe_strcpy(&buf[buf_ndx], names[i], len);
buf_ndx += len;
buf[buf_ndx] = ',';
buf_ndx++;
goto again;
}
+ /* Now we're done */
+
if (buf && buf_ndx > 0) {
buf[buf_ndx - 1] = '\0';
}
return;
}
- if ( !(type == SID_NAME_DOM_GRP) || (type == SID_NAME_ALIAS) ) {
+ if ( (type != SID_NAME_DOM_GRP) && (type != SID_NAME_ALIAS) ) {
DEBUG(5,("getgrnam_recv: not a group!\n"));
request_error(state);
return;
memset(name_group, 0, sizeof(fstring));
tmp = state->request.data.groupname;
+
+ name_domain[0] = '\0';
+ name_group[0] = '\0';
parse_domain_user(tmp, name_domain, name_group);
ws_name_replace( name_group, WB_REPLACE_CHAR );
winbindd_lookupname_async( state->mem_ctx, domain->name, name_group,
- getgrnam_recv, state );
- }
+ getgrnam_recv, WINBINDD_GETGRNAM, state );
+}
struct getgrsid_state {
struct winbindd_cli_state *state;
return;
}
- /* eitehr it's a domain group, a domain local group, or a
+ /* either it's a domain group, a domain local group, or a
local group in an internal domain */
if ( !( (name_type==SID_NAME_DOM_GRP) ||
{
struct getent_state *ent;
struct winbindd_gr *group_list = NULL;
- int num_groups, group_list_ndx = 0, i, gr_mem_list_len = 0;
+ int num_groups, group_list_ndx, gr_mem_list_len = 0;
char *gr_mem_list = NULL;
DEBUG(3, ("[%5lu]: getgrent\n", (unsigned long)state->pid));
num_groups = MIN(MAX_GETGRENT_GROUPS, state->request.data.num_entries);
+ if (num_groups == 0) {
+ request_error(state);
+ return;
+ }
+
if ((state->response.extra_data.data = SMB_MALLOC_ARRAY(struct winbindd_gr, num_groups)) == NULL) {
request_error(state);
return;
/* Start sending back groups */
- for (i = 0; i < num_groups; i++) {
+ for (group_list_ndx = 0; group_list_ndx < num_groups; ) {
struct acct_info *name_list = NULL;
fstring domain_group_name;
uint32 result;
/* Get rid and name type from name. The following costs 1 packet */
winbindd_lookupname_async(state->mem_ctx, s->domname, s->username,
- getgroups_usersid_recv, s);
+ getgroups_usersid_recv, WINBINDD_GETGROUPS, s);
}
static void getgroups_usersid_recv(void *private_data, BOOL success,
git.samba.org / amitay / samba.git / blobdiff