Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
6 changed files
with
825 additions
and
74 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,287 @@ | ||
| /* | ||
| * Copyright 2017 MongoDB, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| #include "mongoc-config.h" | ||
|
|
||
| #ifdef MONGOC_ENABLE_SASL_SSPI | ||
|
|
||
| #include "mongoc-cluster-sspi-private.h" | ||
| #include "mongoc-cluster-sasl-private.h" | ||
| #include "mongoc-sspi-private.h" | ||
| #include "mongoc-error.h" | ||
| #include "mongoc-util-private.h" | ||
|
|
||
|
|
||
|
|
||
| /* | ||
| *-------------------------------------------------------------------------- | ||
| * | ||
| * _mongoc_cluster_auth_node_sasl -- | ||
| * | ||
| * Perform authentication for a cluster node using SASL. This only | ||
| * supports GSSAPI at the moment. | ||
| * | ||
| * Returns: | ||
| * true if successful; otherwise false and @error is set. | ||
| * | ||
| * Side effects: | ||
| * error may be set. | ||
| * | ||
| *-------------------------------------------------------------------------- | ||
| */ | ||
|
|
||
| mongoc_sspi_client_state_t * | ||
| _mongoc_cluster_sspi_new (mongoc_uri_t *uri, const char *hostname) | ||
| { | ||
| WCHAR *service; /* L"serviceName@hostname@REALM" */ | ||
| const char *service_name = "mongodb"; | ||
| ULONG flags = ISC_REQ_MUTUAL_AUTH; | ||
| const char *service_realm = NULL; | ||
| char *service_ascii = NULL; | ||
| mongoc_sspi_client_state_t *state; | ||
| const char *tmp_creds; | ||
| int service_ascii_len; | ||
| const bson_t *options; | ||
| int tmp_creds_len; | ||
| bson_t properties; | ||
| bson_iter_t iter; | ||
| int service_len; | ||
| int user_len = 0; | ||
| int pass_len = 0; | ||
| WCHAR *pass = NULL; | ||
| WCHAR *user = NULL; | ||
| int res; | ||
|
|
||
| options = mongoc_uri_get_options (uri); | ||
|
|
||
| if (!mongoc_uri_get_mechanism_properties (uri, &properties)) { | ||
| bson_init (&properties); | ||
| } | ||
|
|
||
| if (bson_iter_init_find_case (&iter, options, "gssapiservicename") && | ||
| BSON_ITER_HOLDS_UTF8 (&iter)) { | ||
| service_name = bson_iter_utf8 (&iter, NULL); | ||
| } | ||
| if (bson_iter_init_find_case (&iter, &properties, "SERVICE_NAME") && | ||
| BSON_ITER_HOLDS_UTF8 (&iter)) { | ||
| service_name = bson_iter_utf8 (&iter, NULL); | ||
| } | ||
|
|
||
| if (bson_iter_init_find_case (&iter, &properties, "SERVICE_REALM") && | ||
| BSON_ITER_HOLDS_UTF8 (&iter)) { | ||
| service_realm = bson_iter_utf8 (&iter, NULL); | ||
| service_ascii = | ||
| bson_strdup_printf ("%s@%s@%s", service_name, hostname, service_realm); | ||
| } else { | ||
| service_ascii = bson_strdup_printf ("%s@%s", service_name, hostname); | ||
| } | ||
| service_ascii_len = strlen (service_ascii); | ||
|
|
||
| /* this is donated to the sspi */ | ||
| service = calloc (service_ascii_len + 1, sizeof (WCHAR)); | ||
| service_len = MultiByteToWideChar ( | ||
| CP_UTF8, 0, service_ascii, service_ascii_len, service, service_ascii_len); | ||
| service[service_len] = L'\0'; | ||
| bson_free (service_ascii); | ||
|
|
||
|
|
||
| tmp_creds = mongoc_uri_get_password (uri); | ||
| if (tmp_creds) { | ||
| tmp_creds_len = strlen (tmp_creds); | ||
|
|
||
| /* this is donated to the sspi */ | ||
| pass = calloc (tmp_creds_len + 1, sizeof (WCHAR)); | ||
| pass_len = MultiByteToWideChar ( | ||
| CP_UTF8, 0, tmp_creds, tmp_creds_len, pass, tmp_creds_len); | ||
| pass[pass_len] = L'\0'; | ||
| } | ||
|
|
||
| tmp_creds = mongoc_uri_get_username (uri); | ||
| if (tmp_creds) { | ||
| tmp_creds_len = strlen (tmp_creds); | ||
|
|
||
| /* this is donated to the sspi */ | ||
| user = calloc (tmp_creds_len + 1, sizeof (WCHAR)); | ||
| user_len = MultiByteToWideChar ( | ||
| CP_UTF8, 0, tmp_creds, tmp_creds_len, user, tmp_creds_len); | ||
| user[user_len] = L'\0'; | ||
| } | ||
|
|
||
| state = (mongoc_sspi_client_state_t *) bson_malloc0 (sizeof *state); | ||
| res = _mongoc_sspi_auth_sspi_client_init ( | ||
| service, flags, user, user_len, NULL, 0, pass, pass_len, state); | ||
|
|
||
|
|
||
| if (res != MONGOC_SSPI_AUTH_GSS_ERROR) { | ||
| return state; | ||
| } | ||
| bson_free (state); | ||
| return NULL; | ||
| } | ||
|
|
||
| bool | ||
| _mongoc_cluster_auth_node_sspi (mongoc_cluster_t *cluster, | ||
| mongoc_stream_t *stream, | ||
| const char *hostname, | ||
| bson_error_t *error) | ||
| { | ||
| mongoc_sspi_client_state_t *state; | ||
| uint8_t buf[4096] = {0}; | ||
| bson_iter_t iter; | ||
| uint32_t buflen; | ||
| bson_t reply; | ||
| char *tmpstr; | ||
| int conv_id; | ||
| bson_t cmd; | ||
| int res = MONGOC_SSPI_AUTH_GSS_CONTINUE; | ||
| int step; | ||
| bool canonicalize = false; | ||
| const bson_t *options; | ||
| bson_t properties; | ||
| char real_name[BSON_HOST_NAME_MAX + 1]; | ||
|
|
||
| options = mongoc_uri_get_options (cluster->uri); | ||
|
|
||
| if (bson_iter_init_find_case (&iter, options, "canonicalizeHostname") && | ||
| BSON_ITER_HOLDS_UTF8 (&iter)) { | ||
| canonicalize = bson_iter_bool (&iter); | ||
| } | ||
|
|
||
| if (mongoc_uri_get_mechanism_properties (cluster->uri, &properties)) { | ||
| if (bson_iter_init_find_case ( | ||
| &iter, &properties, "CANONICALIZE_HOST_NAME") && | ||
| BSON_ITER_HOLDS_UTF8 (&iter)) { | ||
| canonicalize = !strcasecmp (bson_iter_utf8 (&iter, NULL), "true"); | ||
| } | ||
| bson_destroy (&properties); | ||
| } | ||
|
|
||
| if (canonicalize && | ||
| _mongoc_cluster_get_canonicalized_name ( | ||
| cluster, stream, real_name, sizeof real_name, error)) { | ||
| state = _mongoc_cluster_sspi_new (cluster->uri, real_name); | ||
| } else { | ||
| state = _mongoc_cluster_sspi_new (cluster->uri, hostname); | ||
| } | ||
|
|
||
|
|
||
| if (!state) { | ||
| bson_set_error (error, | ||
| MONGOC_ERROR_CLIENT, | ||
| MONGOC_ERROR_CLIENT_AUTHENTICATE, | ||
| "Couldn't initialize SSPI service."); | ||
| goto failure; | ||
| } | ||
|
|
||
| for (step = 0;; step++) { | ||
| bson_init (&cmd); | ||
|
|
||
| if (res == MONGOC_SSPI_AUTH_GSS_CONTINUE) { | ||
| res = _mongoc_sspi_auth_sspi_client_step (state, buf); | ||
| } else if (res == MONGOC_SSPI_AUTH_GSS_COMPLETE) { | ||
| char *response; | ||
| const char *tmp_creds = mongoc_uri_get_username (cluster->uri); | ||
| int tmp_creds_len = strlen (tmp_creds); | ||
|
|
||
| res = _mongoc_sspi_auth_sspi_client_unwrap (state, buf); | ||
| response = bson_strdup (state->response); | ||
| _mongoc_sspi_auth_sspi_client_wrap (state, response, tmp_creds, tmp_creds_len, 0); | ||
| bson_free (response); | ||
| } | ||
|
|
||
| if (res == MONGOC_SSPI_AUTH_GSS_ERROR) { | ||
| bson_set_error (error, | ||
| MONGOC_ERROR_CLIENT, | ||
| MONGOC_ERROR_CLIENT_AUTHENTICATE, | ||
| "Received invalid SSPI data."); | ||
| break; | ||
| } | ||
|
|
||
| if (step == 0) { | ||
| _mongoc_cluster_build_sasl_start ( | ||
| &cmd, "GSSAPI", state->response, strlen (state->response)); | ||
| } else { | ||
| if (state->response) { | ||
| _mongoc_cluster_build_sasl_continue ( | ||
| &cmd, conv_id, state->response, strlen (state->response)); | ||
| } else { | ||
| _mongoc_cluster_build_sasl_continue (&cmd, conv_id, "", 0); | ||
| } | ||
| } | ||
|
|
||
| if (!mongoc_cluster_run_command (cluster, | ||
| stream, | ||
| 0, | ||
| MONGOC_QUERY_SLAVE_OK, | ||
| "$external", | ||
| &cmd, | ||
| &reply, | ||
| error)) { | ||
| bson_destroy (&cmd); | ||
| bson_destroy (&reply); | ||
| break; | ||
| } | ||
|
|
||
| bson_destroy (&cmd); | ||
|
|
||
| if (bson_iter_init_find (&iter, &reply, "done") && | ||
| bson_iter_as_bool (&iter)) { | ||
| bson_destroy (&reply); | ||
| break; | ||
| } | ||
|
|
||
| conv_id = _mongoc_cluster_get_conversation_id (&reply); | ||
|
|
||
| if (!bson_iter_init_find (&iter, &reply, "payload") || | ||
| !BSON_ITER_HOLDS_UTF8 (&iter)) { | ||
| bson_destroy (&reply); | ||
| bson_set_error (error, | ||
| MONGOC_ERROR_CLIENT, | ||
| MONGOC_ERROR_CLIENT_AUTHENTICATE, | ||
| "Received invalid SASL reply from MongoDB server."); | ||
| break; | ||
| } | ||
|
|
||
|
|
||
| tmpstr = bson_iter_utf8 (&iter, &buflen); | ||
|
|
||
| if (buflen > sizeof buf) { | ||
| bson_set_error (error, | ||
| MONGOC_ERROR_CLIENT, | ||
| MONGOC_ERROR_CLIENT_AUTHENTICATE, | ||
| "SASL reply from MongoDB is too large."); | ||
|
|
||
| bson_destroy (&reply); | ||
| break; | ||
| } | ||
|
|
||
| memcpy (buf, tmpstr, buflen); | ||
|
|
||
| bson_destroy (&reply); | ||
| } | ||
|
|
||
| bson_free (state); | ||
|
|
||
| failure: | ||
|
|
||
| if (error->domain) { | ||
| return false; | ||
| } | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| #endif |
Oops, something went wrong.