--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Rafal Szczesniak 2007
+
+ 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/>.
+*/
+
+/*
+ a composite function for getting group information via samr pipe
+*/
+
+
+#include "includes.h"
+#include "libcli/composite/composite.h"
+#include "libnet/composite.h"
+#include "librpc/gen_ndr/security.h"
+#include "libcli/security/security.h"
+#include "libnet/userman.h"
+#include "libnet/groupinfo.h"
+#include "librpc/gen_ndr/ndr_samr_c.h"
+
+
+struct groupinfo_state {
+ struct dcerpc_pipe *pipe;
+ struct policy_handle domain_handle;
+ struct policy_handle group_handle;
+ uint16_t level;
+ struct samr_LookupNames lookup;
+ struct samr_OpenGroup opengroup;
+ struct samr_QueryGroupInfo querygroupinfo;
+ struct samr_Close samrclose;
+ union samr_GroupInfo *info;
+
+ /* information about the progress */
+ void (*monitor_fn)(struct monitor_msg *);
+};
+
+
+static void continue_groupinfo_lookup(struct rpc_request *req);
+static void continue_groupinfo_opengroup(struct rpc_request *req);
+static void continue_groupinfo_getgroup(struct rpc_request *req);
+static void continue_groupinfo_closegroup(struct rpc_request *req);
+
+
+/**
+ * Stage 1 (optional): Look for a group name in SAM server.
+ */
+static void continue_groupinfo_lookup(struct rpc_request *req)
+{
+ struct composite_context *c;
+ struct groupinfo_state *s;
+ struct rpc_request *opengroup_req;
+ struct monitor_msg msg;
+ struct msg_rpc_lookup_name *msg_lookup;
+
+ c = talloc_get_type(req->async.private_data, struct composite_context);
+ s = talloc_get_type(c->private_data, struct groupinfo_state);
+
+ /* receive samr_Lookup reply */
+ c->status = dcerpc_ndr_request_recv(req);
+ if (!composite_is_ok(c)) return;
+
+ /* there could be a problem with name resolving itself */
+ if (!NT_STATUS_IS_OK(s->lookup.out.result)) {
+ composite_error(c, s->lookup.out.result);
+ return;
+ }
+
+ /* issue a monitor message */
+ if (s->monitor_fn) {
+ msg.type = mon_SamrLookupName;
+ msg_lookup = talloc(s, struct msg_rpc_lookup_name);
+ msg_lookup->rid = s->lookup.out.rids.ids;
+ msg_lookup->count = s->lookup.out.rids.count;
+ msg.data = (void*)msg_lookup;
+ msg.data_size = sizeof(*msg_lookup);
+
+ s->monitor_fn(&msg);
+ }
+
+
+ /* have we actually got name resolved
+ - we're looking for only one at the moment */
+ if (s->lookup.out.rids.count == 0) {
+ composite_error(c, NT_STATUS_NO_SUCH_USER);
+ }
+
+ /* TODO: find proper status code for more than one rid found */
+
+ /* prepare parameters for LookupNames */
+ s->opengroup.in.domain_handle = &s->domain_handle;
+ s->opengroup.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
+ s->opengroup.in.rid = s->lookup.out.rids.ids[0];
+ s->opengroup.out.group_handle = &s->group_handle;
+
+ /* send request */
+ opengroup_req = dcerpc_samr_OpenGroup_send(s->pipe, c, &s->opengroup);
+ if (composite_nomem(opengroup_req, c)) return;
+
+ composite_continue_rpc(c, opengroup_req, continue_groupinfo_opengroup, c);
+}
+
+
+/**
+ * Stage 2: Open group policy handle.
+ */
+static void continue_groupinfo_opengroup(struct rpc_request *req)
+{
+ struct composite_context *c;
+ struct groupinfo_state *s;
+ struct rpc_request *querygroup_req;
+ struct monitor_msg msg;
+ struct msg_rpc_open_group *msg_open;
+
+ c = talloc_get_type(req->async.private_data, struct composite_context);
+ s = talloc_get_type(c->private_data, struct groupinfo_state);
+
+ /* receive samr_OpenGroup reply */
+ c->status = dcerpc_ndr_request_recv(req);
+ if (!composite_is_ok(c)) return;
+
+ if (!NT_STATUS_IS_OK(s->querygroupinfo.out.result)) {
+ composite_error(c, s->querygroupinfo.out.result);
+ return;
+ }
+
+ /* issue a monitor message */
+ if (s->monitor_fn) {
+ msg.type = mon_SamrOpenGroup;
+ msg_open = talloc(s, struct msg_rpc_open_group);
+ msg_open->rid = s->opengroup.in.rid;
+ msg_open->access_mask = s->opengroup.in.access_mask;
+ msg.data = (void*)msg_open;
+ msg.data_size = sizeof(*msg_open);
+
+ s->monitor_fn(&msg);
+ }
+
+ /* prepare parameters for QueryGroupInfo call */
+ s->querygroupinfo.in.group_handle = &s->group_handle;
+ s->querygroupinfo.in.level = s->level;
+
+ /* queue rpc call, set event handling and new state */
+ querygroup_req = dcerpc_samr_QueryGroupInfo_send(s->pipe, c, &s->querygroupinfo);
+ if (composite_nomem(querygroup_req, c)) return;
+
+ composite_continue_rpc(c, querygroup_req, continue_groupinfo_getgroup, c);
+}
+
+
+/**
+ * Stage 3: Get requested group information.
+ */
+static void continue_groupinfo_getgroup(struct rpc_request *req)
+{
+ struct composite_context *c;
+ struct groupinfo_state *s;
+ struct rpc_request *close_req;
+ struct monitor_msg msg;
+ struct msg_rpc_query_group *msg_query;
+
+ c = talloc_get_type(req->async.private_data, struct composite_context);
+ s = talloc_get_type(c->private_data, struct groupinfo_state);
+
+ /* receive samr_QueryGroupInfo reply */
+ c->status = dcerpc_ndr_request_recv(req);
+ if (!composite_is_ok(c)) return;
+
+ /* check if querygroup itself went ok */
+ if (!NT_STATUS_IS_OK(s->querygroupinfo.out.result)) {
+ composite_error(c, s->querygroupinfo.out.result);
+ return;
+ }
+
+ s->info = talloc_steal(s, s->querygroupinfo.out.info);
+
+ /* issue a monitor message */
+ if (s->monitor_fn) {
+ msg.type = mon_SamrQueryGroup;
+ msg_query = talloc(s, struct msg_rpc_query_group);
+ msg_query->level = s->querygroupinfo.in.level;
+ msg.data = (void*)msg_query;
+ msg.data_size = sizeof(*msg_query);
+
+ s->monitor_fn(&msg);
+ }
+
+ /* prepare arguments for Close call */
+ s->samrclose.in.handle = &s->group_handle;
+ s->samrclose.out.handle = &s->group_handle;
+
+ /* queue rpc call, set event handling and new state */
+ close_req = dcerpc_samr_Close_send(s->pipe, c, &s->samrclose);
+ if (composite_nomem(close_req, c)) return;
+
+ composite_continue_rpc(c, close_req, continue_groupinfo_closegroup, c);
+}
+
+
+/**
+ * Stage 4: Close policy handle associated with opened group.
+ */
+static void continue_groupinfo_closegroup(struct rpc_request *req)
+{
+ struct composite_context *c;
+ struct groupinfo_state *s;
+ struct monitor_msg msg;
+ struct msg_rpc_close_group *msg_close;
+
+ c = talloc_get_type(req->async.private_data, struct composite_context);
+ s = talloc_get_type(c->private_data, struct groupinfo_state);
+
+ /* receive samr_Close reply */
+ c->status = dcerpc_ndr_request_recv(req);
+ if (!composite_is_ok(c)) return;
+
+ if (!NT_STATUS_IS_OK(s->samrclose.out.result)) {
+ composite_error(c, s->samrclose.out.result);
+ return;
+ }
+
+ /* issue a monitor message */
+ if (s->monitor_fn) {
+ msg.type = mon_SamrClose;
+ msg_close = talloc(s, struct msg_rpc_close_group);
+ msg_close->rid = s->opengroup.in.rid;
+ msg.data = (void*)msg_close;
+ msg.data_size = sizeof(*msg_close);
+
+ s->monitor_fn(&msg);
+ }
+
+ composite_done(c);
+}
+
+
+/**
+ * Sends asynchronous groupinfo request
+ *
+ * @param p dce/rpc call pipe
+ * @param io arguments and results of the call
+ */
+struct composite_context *libnet_rpc_groupinfo_send(struct dcerpc_pipe *p,
+ struct libnet_rpc_groupinfo *io,
+ void (*monitor)(struct monitor_msg*))
+{
+ struct composite_context *c;
+ struct groupinfo_state *s;
+ struct dom_sid *sid;
+ struct rpc_request *opengroup_req, *lookup_req;
+
+ if (!p || !io) return NULL;
+
+ c = composite_create(p, dcerpc_event_context(p));
+ if (c == NULL) return c;
+
+ s = talloc_zero(c, struct groupinfo_state);
+ if (composite_nomem(s, c)) return c;
+
+ c->private_data = s;
+
+ s->level = io->in.level;
+ s->pipe = p;
+ s->domain_handle = io->in.domain_handle;
+ s->monitor_fn = monitor;
+
+ if (io->in.sid) {
+ sid = dom_sid_parse_talloc(s, io->in.sid);
+ if (composite_nomem(sid, c)) return c;
+
+ s->opengroup.in.domain_handle = &s->domain_handle;
+ s->opengroup.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
+ s->opengroup.in.rid = sid->sub_auths[sid->num_auths - 1];
+ s->opengroup.out.group_handle = &s->group_handle;
+
+ /* send request */
+ opengroup_req = dcerpc_samr_OpenGroup_send(p, c, &s->opengroup);
+ if (composite_nomem(opengroup_req, c)) return c;
+
+ composite_continue_rpc(c, opengroup_req, continue_groupinfo_opengroup, c);
+
+ } else {
+ /* preparing parameters to send rpc request */
+ s->lookup.in.domain_handle = &s->domain_handle;
+ s->lookup.in.num_names = 1;
+ s->lookup.in.names = talloc_array(s, struct lsa_String, 1);
+ if (composite_nomem(s->lookup.in.names, c)) return c;
+
+ s->lookup.in.names[0].string = talloc_strdup(s, io->in.groupname);
+ if (composite_nomem(s->lookup.in.names[0].string, c)) return c;
+
+ /* send request */
+ lookup_req = dcerpc_samr_LookupNames_send(p, c, &s->lookup);
+ if (composite_nomem(lookup_req, c)) return c;
+
+ composite_continue_rpc(c, lookup_req, continue_groupinfo_lookup, c);
+ }
+
+ return c;
+}
+
+
+/**
+ * Waits for and receives result of asynchronous groupinfo call
+ *
+ * @param c composite context returned by asynchronous groupinfo call
+ * @param mem_ctx memory context of the call
+ * @param io pointer to results (and arguments) of the call
+ * @return nt status code of execution
+ */
+
+NTSTATUS libnet_rpc_groupinfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
+ struct libnet_rpc_groupinfo *io)
+{
+ NTSTATUS status;
+ struct groupinfo_state *s;
+
+ /* wait for results of sending request */
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status) && io) {
+ s = talloc_get_type(c->private_data, struct groupinfo_state);
+ talloc_steal(mem_ctx, s->info);
+ io->out.info = *s->info;
+ }
+
+ /* memory context associated to composite context is no longer needed */
+ talloc_free(c);
+ return status;
+}
+
+
+/**
+ * Synchronous version of groupinfo call
+ *
+ * @param pipe dce/rpc call pipe
+ * @param mem_ctx memory context for the call
+ * @param io arguments and results of the call
+ * @return nt status code of execution
+ */
+
+NTSTATUS libnet_rpc_groupinfo(struct dcerpc_pipe *p,
+ TALLOC_CTX *mem_ctx,
+ struct libnet_rpc_groupinfo *io)
+{
+ struct composite_context *c = libnet_rpc_groupinfo_send(p, io, NULL);
+ return libnet_rpc_groupinfo_recv(c, mem_ctx, io);
+}
git.samba.org / samba.git / commitdiff