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,
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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-#include "auth/auth.h"
#include "lib/ldb/include/ldb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "dsdb/samdb/samdb.h"
+#include "ldb_wrap.h"
+#include "../lib/util/util_ldb.h"
+#include "auth/auth.h"
+#include "param/param.h"
-/*
+/**
connect to the schannel ldb
*/
-struct ldb_context *schannel_db_connect(TALLOC_CTX *mem_ctx)
+struct ldb_context *schannel_db_connect(TALLOC_CTX *mem_ctx, struct tevent_context *ev_ctx,
+ struct loadparm_context *lp_ctx)
{
char *path;
struct ldb_context *ldb;
- BOOL existed;
+ bool existed;
const char *init_ldif =
"dn: @ATTRIBUTES\n" \
"computerName: CASE_INSENSITIVE\n" \
"flatname: CASE_INSENSITIVE\n";
- path = smbd_tmp_path(mem_ctx, "schannel.ldb");
+ path = private_path(mem_ctx, lp_ctx, "schannel.ldb");
if (!path) {
return NULL;
}
- existed = file_exists(path);
+ existed = file_exist(path);
- ldb = ldb_wrap_connect(mem_ctx, path, system_session(mem_ctx),
- NULL, LDB_FLG_NOSYNC, NULL);
+ ldb = ldb_wrap_connect(mem_ctx, ev_ctx, lp_ctx, path,
+ system_session(lp_ctx),
+ NULL, LDB_FLG_NOSYNC);
talloc_free(path);
if (!ldb) {
return NULL;
return ldb;
}
-/*
- remember an established session key for a netr server authentication
- use a simple ldb structure
-*/
-NTSTATUS schannel_store_session_key_ldb(TALLOC_CTX *mem_ctx,
- struct ldb_context *ldb,
- struct creds_CredentialState *creds)
-{
- struct ldb_message *msg;
- struct ldb_val val, seed, client_state, server_state;
- char *f;
- char *sct;
- int ret;
-
- f = talloc_asprintf(mem_ctx, "%u", (unsigned int)creds->negotiate_flags);
-
- if (f == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- sct = talloc_asprintf(mem_ctx, "%u", (unsigned int)creds->secure_channel_type);
-
- if (sct == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- msg = ldb_msg_new(ldb);
- if (msg == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- msg->dn = ldb_dn_build_child(msg, "computerName", creds->computer_name, NULL);
- if (msg->dn == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- val.data = creds->session_key;
- val.length = sizeof(creds->session_key);
-
- seed.data = creds->seed.data;
- seed.length = sizeof(creds->seed.data);
-
- client_state.data = creds->client.data;
- client_state.length = sizeof(creds->client.data);
- server_state.data = creds->server.data;
- server_state.length = sizeof(creds->server.data);
-
- ldb_msg_add_string(msg, "objectClass", "schannelState");
- ldb_msg_add_value(msg, "sessionKey", &val);
- ldb_msg_add_value(msg, "seed", &seed);
- ldb_msg_add_value(msg, "clientState", &client_state);
- ldb_msg_add_value(msg, "serverState", &server_state);
- ldb_msg_add_string(msg, "negotiateFlags", f);
- ldb_msg_add_string(msg, "secureChannelType", sct);
- ldb_msg_add_string(msg, "accountName", creds->account_name);
- ldb_msg_add_string(msg, "computerName", creds->computer_name);
- ldb_msg_add_string(msg, "flatname", creds->domain);
- samdb_msg_add_dom_sid(ldb, mem_ctx, msg, "objectSid", creds->sid);
-
- ldb_delete(ldb, msg->dn);
-
- ret = ldb_add(ldb, msg);
-
- if (ret != 0) {
- DEBUG(0,("Unable to add %s to session key db - %s\n",
- ldb_dn_linearize(msg, msg->dn), ldb_errstring(ldb)));
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
- return NT_STATUS_OK;
-}
-
-NTSTATUS schannel_store_session_key(TALLOC_CTX *mem_ctx,
- struct creds_CredentialState *creds)
-{
- struct ldb_context *ldb;
- NTSTATUS nt_status;
- int ret;
-
- ldb = schannel_db_connect(mem_ctx);
- if (!ldb) {
- return NT_STATUS_ACCESS_DENIED;
- }
-
- ret = ldb_transaction_start(ldb);
- if (ret != 0) {
- talloc_free(ldb);
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
- nt_status = schannel_store_session_key_ldb(mem_ctx, ldb, creds);
-
- if (NT_STATUS_IS_OK(nt_status)) {
- ret = ldb_transaction_commit(ldb);
- } else {
- ret = ldb_transaction_cancel(ldb);
- }
-
- if (ret != 0) {
- DEBUG(0,("Unable to commit adding credentials for %s to schannel key db - %s\n",
- creds->computer_name, ldb_errstring(ldb)));
- talloc_free(ldb);
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
- talloc_free(ldb);
- return nt_status;
-}
-
-/*
- read back a credentials back for a computer
-*/
-NTSTATUS schannel_fetch_session_key_ldb(TALLOC_CTX *mem_ctx,
- struct ldb_context *ldb,
- const char *computer_name,
- const char *domain,
- struct creds_CredentialState **creds)
-{
- struct ldb_result *res;
- int ret;
- const struct ldb_val *val;
- char *expr=NULL;
-
- *creds = talloc_zero(mem_ctx, struct creds_CredentialState);
- if (!*creds) {
- return NT_STATUS_NO_MEMORY;
- }
-
- expr = talloc_asprintf(mem_ctx, "(&(computerName=%s)(flatname=%s))",
- computer_name, domain);
- if (expr == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- ret = ldb_search(ldb, NULL, LDB_SCOPE_SUBTREE, expr, NULL, &res);
- if (ret != LDB_SUCCESS || res->count != 1) {
- DEBUG(3,("schannel: Failed to find a record for client: %s\n", computer_name));
- return NT_STATUS_INVALID_HANDLE;
- }
-
- val = ldb_msg_find_ldb_val(res->msgs[0], "sessionKey");
- if (val == NULL || val->length != 16) {
- DEBUG(1,("schannel: record in schannel DB must contain a sessionKey of length 16, when searching for client: %s\n", computer_name));
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- memcpy((*creds)->session_key, val->data, 16);
-
- val = ldb_msg_find_ldb_val(res->msgs[0], "seed");
- if (val == NULL || val->length != 8) {
- DEBUG(1,("schannel: record in schannel DB must contain a vaid seed of length 8, when searching for client: %s\n", computer_name));
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- memcpy((*creds)->seed.data, val->data, 8);
-
- val = ldb_msg_find_ldb_val(res->msgs[0], "clientState");
- if (val == NULL || val->length != 8) {
- DEBUG(1,("schannel: record in schannel DB must contain a vaid clientState of length 8, when searching for client: %s\n", computer_name));
- return NT_STATUS_INTERNAL_ERROR;
- }
- memcpy((*creds)->client.data, val->data, 8);
-
- val = ldb_msg_find_ldb_val(res->msgs[0], "serverState");
- if (val == NULL || val->length != 8) {
- DEBUG(1,("schannel: record in schannel DB must contain a vaid serverState of length 8, when searching for client: %s\n", computer_name));
- return NT_STATUS_INTERNAL_ERROR;
- }
- memcpy((*creds)->server.data, val->data, 8);
-
- (*creds)->negotiate_flags = ldb_msg_find_int(res->msgs[0], "negotiateFlags", 0);
-
- (*creds)->secure_channel_type = ldb_msg_find_int(res->msgs[0], "secureChannelType", 0);
-
- (*creds)->account_name = talloc_reference(*creds, ldb_msg_find_string(res->msgs[0], "accountName", NULL));
-
- (*creds)->computer_name = talloc_reference(*creds, ldb_msg_find_string(res->msgs[0], "computerName", NULL));
-
- (*creds)->domain = talloc_reference(*creds, ldb_msg_find_string(res->msgs[0], "flatname", NULL));
-
- (*creds)->sid = samdb_result_dom_sid(*creds, res->msgs[0], "objectSid");
-
- return NT_STATUS_OK;
-}
-
-NTSTATUS schannel_fetch_session_key(TALLOC_CTX *mem_ctx,
- const char *computer_name,
- const char *domain,
- struct creds_CredentialState **creds)
-{
- NTSTATUS nt_status;
- struct ldb_context *ldb;
-
- ldb = schannel_db_connect(mem_ctx);
- if (!ldb) {
- return NT_STATUS_ACCESS_DENIED;
- }
-
- nt_status = schannel_fetch_session_key_ldb(mem_ctx, ldb,
- computer_name, domain,
- creds);
- talloc_free(ldb);
- return nt_status;
-}
git.samba.org / ira / wip.git / blobdiff