--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ async implementation of WINBINDD_GETGROUPS
+ Copyright (C) Volker Lendecke 2009
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "winbindd.h"
+
+struct winbindd_getgroups_state {
+ struct tevent_context *ev;
+ fstring domname;
+ fstring username;
+ struct dom_sid sid;
+ enum lsa_SidType type;
+ int num_sids;
+ struct dom_sid *sids;
+ int next_sid;
+ int num_gids;
+ gid_t *gids;
+};
+
+static void winbindd_getgroups_lookupname_done(struct tevent_req *subreq);
+static void winbindd_getgroups_gettoken_done(struct tevent_req *subreq);
+static void winbindd_getgroups_sid2gid_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_getgroups_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct winbindd_request *request)
+{
+ struct tevent_req *req, *subreq;
+ struct winbindd_getgroups_state *state;
+ char *domuser, *mapped_user;
+ struct winbindd_domain *domain;
+ NTSTATUS status;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct winbindd_getgroups_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->ev = ev;
+
+ /* Ensure null termination */
+ request->data.username[sizeof(request->data.username)-1]='\0';
+
+ DEBUG(3, ("getgroups %s\n", request->data.username));
+
+ domuser = request->data.username;
+
+ status = normalize_name_unmap(state, domuser, &mapped_user);
+
+ if (NT_STATUS_IS_OK(status)
+ || NT_STATUS_EQUAL(status, NT_STATUS_FILE_RENAMED)) {
+ /* normalize_name_unmapped did something */
+ domuser = mapped_user;
+ }
+
+ if (!parse_domain_user(domuser, state->domname, state->username)) {
+ DEBUG(5, ("Could not parse domain user: %s\n", domuser));
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ domain = find_domain_from_name_noinit(state->domname);
+ if (domain == NULL) {
+ /* Retry with DNS name */
+ char *p = strchr(domuser, '@');
+ if (p != NULL) {
+ domain = find_domain_from_name_noinit(p+1);
+ }
+ }
+ if (domain == NULL) {
+ DEBUG(7, ("could not find domain entry for domain %s\n",
+ state->domname));
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return tevent_req_post(req, ev);
+ }
+
+ if (lp_winbind_trusted_domains_only() && domain->primary) {
+ DEBUG(7,("winbindd_getgroups: My domain -- "
+ "rejecting getgroups() for %s\\%s.\n",
+ state->domname, state->username));
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return tevent_req_post(req, ev);
+ }
+
+ subreq = wb_lookupname_send(state, ev, state->domname, state->username,
+ LOOKUP_NAME_NO_NSS);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, winbindd_getgroups_lookupname_done,
+ req);
+ return req;
+}
+
+static void winbindd_getgroups_lookupname_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_getgroups_state *state = tevent_req_data(
+ req, struct winbindd_getgroups_state);
+ NTSTATUS status;
+
+ status = wb_lookupname_recv(subreq, &state->sid, &state->type);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ subreq = wb_gettoken_send(state, state->ev, &state->sid);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, winbindd_getgroups_gettoken_done, req);
+}
+
+static void winbindd_getgroups_gettoken_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_getgroups_state *state = tevent_req_data(
+ req, struct winbindd_getgroups_state);
+ NTSTATUS status;
+
+ status = wb_gettoken_recv(subreq, state, &state->num_sids,
+ &state->sids);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ /*
+ * Convert the group SIDs to gids. state->sids[0] contains the user
+ * sid, so start at index 1.
+ */
+
+ state->gids = talloc_array(state, gid_t, state->num_sids-1);
+ if (tevent_req_nomem(state->gids, req)) {
+ return;
+ }
+ state->num_gids = 0;
+ state->next_sid = 1;
+
+ subreq = wb_sid2gid_send(state, state->ev,
+ &state->sids[state->next_sid]);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, winbindd_getgroups_sid2gid_done, req);
+}
+
+static void winbindd_getgroups_sid2gid_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_getgroups_state *state = tevent_req_data(
+ req, struct winbindd_getgroups_state);
+ NTSTATUS status;
+
+ status = wb_sid2gid_recv(subreq, &state->gids[state->num_gids]);
+ TALLOC_FREE(subreq);
+
+ /*
+ * In case of failure, just continue with the next gid
+ */
+ if (NT_STATUS_IS_OK(status)) {
+ state->num_gids += 1;
+ }
+ state->next_sid += 1;
+
+ if (state->next_sid >= state->num_sids) {
+ tevent_req_done(req);
+ return;
+ }
+
+ subreq = wb_sid2gid_send(state, state->ev,
+ &state->sids[state->next_sid]);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, winbindd_getgroups_sid2gid_done, req);
+}
+
+NTSTATUS winbindd_getgroups_recv(struct tevent_req *req,
+ struct winbindd_response *response)
+{
+ struct winbindd_getgroups_state *state = tevent_req_data(
+ req, struct winbindd_getgroups_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ DEBUG(5, ("Could not convert sid %s: %s\n",
+ sid_string_dbg(&state->sid), nt_errstr(status)));
+ return status;
+ }
+
+ response->data.num_entries = state->num_gids;
+
+ if (state->num_gids > 0) {
+ response->extra_data.data = talloc_move(response,
+ &state->gids);
+ response->length += state->num_gids * sizeof(gid_t);
+ }
+ return NT_STATUS_OK;
+}
size_t num_token_gids;
};
-static void getgroups_usersid_recv(void *private_data, bool success,
- const DOM_SID *sid, enum lsa_SidType type);
-static void getgroups_tokensids_recv(void *private_data, bool success,
- DOM_SID *token_sids, size_t num_token_sids);
-static void getgroups_sid2gid_recv(void *private_data, bool success, gid_t gid);
-
-void winbindd_getgroups(struct winbindd_cli_state *state)
-{
- struct getgroups_state *s;
- char *real_name = NULL;
- NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
-
- /* Ensure null termination */
- state->request->data.username
- [sizeof(state->request->data.username)-1]='\0';
-
- DEBUG(3, ("[%5lu]: getgroups %s\n", (unsigned long)state->pid,
- state->request->data.username));
-
- /* Parse domain and username */
-
- s = TALLOC_P(state->mem_ctx, struct getgroups_state);
- if (s == NULL) {
- DEBUG(0, ("talloc failed\n"));
- request_error(state);
- return;
- }
-
- s->state = state;
-
- nt_status = normalize_name_unmap(state->mem_ctx,
- state->request->data.username,
- &real_name);
-
- /* Reset the real_name pointer if we didn't do anything
- productive in the above call */
- if (!NT_STATUS_IS_OK(nt_status) &&
- !NT_STATUS_EQUAL(nt_status, NT_STATUS_FILE_RENAMED))
- {
- real_name = state->request->data.username;
- }
-
- if (!parse_domain_user_talloc(state->mem_ctx, real_name,
- &s->domname, &s->username)) {
- DEBUG(5, ("Could not parse domain user: %s\n",
- real_name));
-
- /* error out if we do not have nested group support */
-
- if ( !lp_winbind_nested_groups() ) {
- request_error(state);
- return;
- }
-
- s->domname = talloc_strdup(state->mem_ctx,
- get_global_sam_name());
- s->username = talloc_strdup(state->mem_ctx,
- state->request->data.username);
- }
-
- /* Get info for the domain (either by short domain name or
- DNS name in the case of a UPN) */
-
- s->domain = find_domain_from_name_noinit(s->domname);
- if (!s->domain) {
- char *p = strchr(s->username, '@');
-
- if (p) {
- s->domain = find_domain_from_name_noinit(p+1);
- }
-
- }
-
- if (s->domain == NULL) {
- DEBUG(7, ("could not find domain entry for domain %s\n",
- s->domname));
- request_error(state);
- return;
- }
-
- if ( s->domain->primary && lp_winbind_trusted_domains_only()) {
- DEBUG(7,("winbindd_getgroups: My domain -- rejecting "
- "getgroups() for %s\\%s.\n", s->domname,
- s->username));
- request_error(state);
- return;
- }
-
- /* 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,
- WINBINDD_GETGROUPS, s);
-}
-
-static void getgroups_usersid_recv(void *private_data, bool success,
- const DOM_SID *sid, enum lsa_SidType type)
-{
- struct getgroups_state *s =
- (struct getgroups_state *)private_data;
-
- if ((!success) ||
- ((type != SID_NAME_USER) && (type != SID_NAME_COMPUTER))) {
- request_error(s->state);
- return;
- }
-
- sid_copy(&s->user_sid, sid);
-
- winbindd_gettoken_async(s->state->mem_ctx, &s->user_sid,
- getgroups_tokensids_recv, s);
-}
-
-static void getgroups_tokensids_recv(void *private_data, bool success,
- DOM_SID *token_sids, size_t num_token_sids)
-{
- struct getgroups_state *s =
- (struct getgroups_state *)private_data;
-
- /* We need at least the user sid and the primary group in the token,
- * otherwise it's an error */
-
- if ((!success) || (num_token_sids < 2)) {
- request_error(s->state);
- return;
- }
-
- s->token_sids = token_sids;
- s->num_token_sids = num_token_sids;
- s->i = 0;
-
- s->token_gids = NULL;
- s->num_token_gids = 0;
-
- getgroups_sid2gid_recv(s, False, 0);
-}
-
-static void getgroups_sid2gid_recv(void *private_data, bool success, gid_t gid)
-{
- struct getgroups_state *s =
- (struct getgroups_state *)private_data;
-
- if (success) {
- if (!add_gid_to_array_unique(s->state->mem_ctx, gid,
- &s->token_gids,
- &s->num_token_gids)) {
- return;
- }
- }
-
- if (s->i < s->num_token_sids) {
- const DOM_SID *sid = &s->token_sids[s->i];
- s->i += 1;
-
- if (sid_equal(sid, &s->user_sid)) {
- getgroups_sid2gid_recv(s, False, 0);
- return;
- }
-
- winbindd_sid2gid_async(s->state->mem_ctx, sid,
- getgroups_sid2gid_recv, s);
- return;
- }
-
- s->state->response->data.num_entries = s->num_token_gids;
- if (s->num_token_gids) {
- s->state->response->extra_data.data = s->token_gids;
- s->state->response->length += s->num_token_gids * sizeof(gid_t);
- }
- request_ok(s->state);
-}
/* Get user supplementary sids. This is equivalent to the
winbindd_getgroups() function but it involves a SID->SIDs mapping
git.samba.org / metze / samba / wip.git / commitdiff