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-rw-r--r--source3/utils/netlookup.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/source3/utils/netlookup.c b/source3/utils/netlookup.c
new file mode 100644
index 0000000..aaf78b0
--- /dev/null
+++ b/source3/utils/netlookup.c
@@ -0,0 +1,218 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Name lookup.
+
+ Copyright (C) Jeremy Allison 2005
+
+ 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 "utils/net.h"
+#include "rpc_client/cli_pipe.h"
+#include "../librpc/gen_ndr/ndr_lsa.h"
+#include "rpc_client/cli_lsarpc.h"
+#include "libsmb/libsmb.h"
+
+/********************************************************
+ Connection cachine struct. Goes away when ctx destroyed.
+********************************************************/
+
+struct con_struct {
+ bool failed_connect;
+ NTSTATUS err;
+ struct cli_state *cli;
+ struct rpc_pipe_client *lsapipe;
+ struct policy_handle pol;
+};
+
+static struct con_struct *cs;
+
+/********************************************************
+ Close connection on context destruction.
+********************************************************/
+
+static int cs_destructor(struct con_struct *p)
+{
+ if (cs->cli) {
+ cli_shutdown(cs->cli);
+ }
+ cs = NULL;
+ return 0;
+}
+
+/********************************************************
+ Create the connection to localhost.
+********************************************************/
+
+static struct con_struct *create_cs(struct net_context *c,
+ TALLOC_CTX *ctx, NTSTATUS *perr)
+{
+ NTSTATUS nt_status;
+ struct sockaddr_storage loopback_ss;
+ struct cli_credentials *anon_creds = NULL;
+
+ *perr = NT_STATUS_OK;
+
+ if (!interpret_string_addr(&loopback_ss, "127.0.0.1", AI_NUMERICHOST)) {
+ *perr = NT_STATUS_INVALID_PARAMETER;
+ return NULL;
+ }
+
+ if (cs) {
+ if (cs->failed_connect) {
+ *perr = cs->err;
+ return NULL;
+ }
+ return cs;
+ }
+
+ cs = talloc(ctx, struct con_struct);
+ if (!cs) {
+ *perr = NT_STATUS_NO_MEMORY;
+ return NULL;
+ }
+
+ anon_creds = cli_credentials_init_anon(cs);
+ if (anon_creds == NULL) {
+ TALLOC_FREE(cs);
+ *perr = NT_STATUS_NO_MEMORY;
+ return NULL;
+ }
+
+ ZERO_STRUCTP(cs);
+ talloc_set_destructor(cs, cs_destructor);
+
+ nt_status = cli_full_connection_creds(&cs->cli, lp_netbios_name(), lp_netbios_name(),
+ &loopback_ss, 0,
+ "IPC$", "IPC",
+ anon_creds,
+ CLI_FULL_CONNECTION_IPC);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("create_cs: Connect failed. Error was %s\n", nt_errstr(nt_status)));
+ cs->failed_connect = true;
+ cs->err = nt_status;
+ *perr = nt_status;
+ return NULL;
+ }
+
+ nt_status = cli_rpc_pipe_open_noauth(cs->cli,
+ &ndr_table_lsarpc,
+ &cs->lsapipe);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("create_cs: open LSA pipe failed. Error was %s\n", nt_errstr(nt_status)));
+ cs->failed_connect = true;
+ cs->err = nt_status;
+ *perr = nt_status;
+ return NULL;
+ }
+
+ nt_status = rpccli_lsa_open_policy(cs->lsapipe, ctx, true,
+ SEC_FLAG_MAXIMUM_ALLOWED,
+ &cs->pol);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("create_cs: rpccli_lsa_open_policy failed. Error was %s\n", nt_errstr(nt_status)));
+ cs->failed_connect = true;
+ cs->err = nt_status;
+ *perr = nt_status;
+ return NULL;
+ }
+
+ return cs;
+}
+
+/********************************************************
+ Do a lookup_sids call to localhost.
+ Check if the local machine is authoritative for this sid. We can't
+ check if this is our SID as that's stored in the root-read-only
+ secrets.tdb.
+ The local smbd will also ask winbindd for us, so we don't have to.
+********************************************************/
+
+NTSTATUS net_lookup_name_from_sid(struct net_context *c,
+ TALLOC_CTX *ctx,
+ struct dom_sid *psid,
+ const char **ppdomain,
+ const char **ppname)
+{
+ NTSTATUS nt_status;
+ struct con_struct *csp = NULL;
+ char **domains;
+ char **names;
+ enum lsa_SidType *types;
+
+ *ppdomain = NULL;
+ *ppname = NULL;
+
+ csp = create_cs(c, ctx, &nt_status);
+ if (csp == NULL) {
+ return nt_status;
+ }
+
+ nt_status = rpccli_lsa_lookup_sids(csp->lsapipe, ctx,
+ &csp->pol,
+ 1, psid,
+ &domains,
+ &names,
+ &types);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ *ppdomain = domains[0];
+ *ppname = names[0];
+ /* Don't care about type here. */
+
+ /* Converted OK */
+ return NT_STATUS_OK;
+}
+
+/********************************************************
+ Do a lookup_names call to localhost.
+********************************************************/
+
+NTSTATUS net_lookup_sid_from_name(struct net_context *c, TALLOC_CTX *ctx,
+ const char *full_name, struct dom_sid *pret_sid)
+{
+ NTSTATUS nt_status;
+ struct con_struct *csp = NULL;
+ struct dom_sid *sids = NULL;
+ enum lsa_SidType *types = NULL;
+
+ csp = create_cs(c, ctx, &nt_status);
+ if (csp == NULL) {
+ return nt_status;
+ }
+
+ nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx,
+ &csp->pol,
+ 1,
+ &full_name,
+ NULL, 1,
+ &sids, &types);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ *pret_sid = sids[0];
+
+ /* Converted OK */
+ return NT_STATUS_OK;
+}