s3:winbind: Convert WINBINDD_GETGROUPS to the new API

4 files changed, 229 insertions, 173 deletions

diff --git a/source3/winbindd/winbindd.c b/source3/winbindd/winbindd.c
index 1a5e958d38..348816b39c 100644
--- a/source3/winbindd/winbindd.c
+++ b/source3/winbindd/winbindd.c
@@ -431,7 +431,6 @@ static struct winbindd_dispatch_table {
 	{ WINBINDD_ENDPWENT, winbindd_endpwent, "ENDPWENT" },
 	{ WINBINDD_GETPWENT, winbindd_getpwent, "GETPWENT" },
 
-	{ WINBINDD_GETGROUPS, winbindd_getgroups, "GETGROUPS" },
 	{ WINBINDD_GETUSERSIDS, winbindd_getusersids, "GETUSERSIDS" },
 
 	/* Group functions */
@@ -533,6 +532,8 @@ static struct winbindd_async_dispatch_table async_nonpriv_table[] = {
 	  winbindd_getsidaliases_send, winbindd_getsidaliases_recv },
 	{ WINBINDD_GETUSERDOMGROUPS, "GETUSERDOMGROUPS",
 	  winbindd_getuserdomgroups_send, winbindd_getuserdomgroups_recv },
+	{ WINBINDD_GETGROUPS, "GETGROUPS",
+	  winbindd_getgroups_send, winbindd_getgroups_recv },
 
 	{ 0, NULL, NULL, NULL }
 };
diff --git a/source3/winbindd/winbindd_getgroups.c b/source3/winbindd/winbindd_getgroups.c
new file mode 100644
index 0000000000..9e6465696e
--- /dev/null
+++ b/source3/winbindd/winbindd_getgroups.c
@@ -0,0 +1,222 @@
+/*
+   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;
+}
diff --git a/source3/winbindd/winbindd_group.c b/source3/winbindd/winbindd_group.c
index 12067f553f..c1a898d73b 100644
--- a/source3/winbindd/winbindd_group.c
+++ b/source3/winbindd/winbindd_group.c
@@ -1559,178 +1559,6 @@ struct getgroups_state {
 	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
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index df6df12dc3..a9a374a532 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -761,6 +761,11 @@ struct tevent_req *wb_gettoken_send(TALLOC_CTX *mem_ctx,
 				    const struct dom_sid *sid);
 NTSTATUS wb_gettoken_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
 			  int *num_sids, struct dom_sid **sids);
+struct tevent_req *winbindd_getgroups_send(TALLOC_CTX *mem_ctx,
+					   struct tevent_context *ev,
+					   struct winbindd_request *request);
+NTSTATUS winbindd_getgroups_recv(struct tevent_req *req,
+				 struct winbindd_response *response);