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"
-static const uint8 *auth_ntlmssp_get_challenge(struct ntlmssp_state *ntlmssp_state)
+/**
+ * Return the challenge as determined by the authentication subsystem
+ * @return an 8 byte random challenge
+ */
+
+static const uint8 *auth_ntlmssp_get_challenge(const struct ntlmssp_state *ntlmssp_state)
{
- AUTH_NTLMSSP_STATE *auth_ntlmssp_state = ntlmssp_state->auth_context;
+ AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
+ (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
return auth_ntlmssp_state->auth_context->get_ntlm_challenge(auth_ntlmssp_state->auth_context);
}
-static NTSTATUS auth_ntlmssp_check_password(struct ntlmssp_state *ntlmssp_state)
+/**
+ * Some authentication methods 'fix' the challenge, so we may not be able to set it
+ *
+ * @return If the effective challenge used by the auth subsystem may be modified
+ */
+static bool auth_ntlmssp_may_set_challenge(const struct ntlmssp_state *ntlmssp_state)
{
- AUTH_NTLMSSP_STATE *auth_ntlmssp_state = ntlmssp_state->auth_context;
- uint32 auth_flags = AUTH_FLAG_NONE;
- auth_usersupplied_info *user_info = NULL;
- DATA_BLOB plaintext_password = data_blob(NULL, 0);
- NTSTATUS nt_status;
+ AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
+ (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
+ struct auth_context *auth_context = auth_ntlmssp_state->auth_context;
- if (auth_ntlmssp_state->ntlmssp_state->lm_resp.length) {
- auth_flags |= AUTH_FLAG_LM_RESP;
- }
+ return auth_context->challenge_may_be_modified;
+}
- if (auth_ntlmssp_state->ntlmssp_state->nt_resp.length == 24) {
- auth_flags |= AUTH_FLAG_NTLM_RESP;
- } else if (auth_ntlmssp_state->ntlmssp_state->nt_resp.length > 24) {
- auth_flags |= AUTH_FLAG_NTLMv2_RESP;
- };
+/**
+ * NTLM2 authentication modifies the effective challenge,
+ * @param challenge The new challenge value
+ */
+static NTSTATUS auth_ntlmssp_set_challenge(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge)
+{
+ AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
+ (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
+ struct auth_context *auth_context = auth_ntlmssp_state->auth_context;
+
+ SMB_ASSERT(challenge->length == 8);
+
+ auth_context->challenge = data_blob_talloc(auth_context->mem_ctx,
+ challenge->data, challenge->length);
+
+ auth_context->challenge_set_by = "NTLMSSP callback (NTLM2)";
+
+ DEBUG(5, ("auth_context challenge set by %s\n", auth_context->challenge_set_by));
+ DEBUG(5, ("challenge is: \n"));
+ dump_data(5, auth_context->challenge.data, auth_context->challenge.length);
+ return NT_STATUS_OK;
+}
+
+/**
+ * Check the password on an NTLMSSP login.
+ *
+ * Return the session keys used on the connection.
+ */
+
+static NTSTATUS auth_ntlmssp_check_password(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
+{
+ AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
+ (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
+ auth_usersupplied_info *user_info = NULL;
+ NTSTATUS nt_status;
+ bool username_was_mapped;
/* the client has given us its machine name (which we otherwise would not get on port 445).
we need to possibly reload smb.conf if smb.conf includes depend on the machine name */
auth_ntlmssp_state->ntlmssp_state->user,
auth_ntlmssp_state->ntlmssp_state->domain,
auth_ntlmssp_state->ntlmssp_state->workstation,
- auth_ntlmssp_state->ntlmssp_state->lm_resp,
- auth_ntlmssp_state->ntlmssp_state->nt_resp,
- plaintext_password,
- auth_flags, True);
+ auth_ntlmssp_state->ntlmssp_state->lm_resp.data ? &auth_ntlmssp_state->ntlmssp_state->lm_resp : NULL,
+ auth_ntlmssp_state->ntlmssp_state->nt_resp.data ? &auth_ntlmssp_state->ntlmssp_state->nt_resp : NULL,
+ NULL, NULL, NULL,
+ True);
+
+ user_info->logon_parameters = MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT;
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
- nt_status = auth_ntlmssp_state->auth_context->check_ntlm_password(auth_ntlmssp_state->auth_context, user_info, &auth_ntlmssp_state->server_info);
-
+ nt_status = auth_ntlmssp_state->auth_context->check_ntlm_password(auth_ntlmssp_state->auth_context,
+ user_info, &auth_ntlmssp_state->server_info);
+
+ username_was_mapped = user_info->was_mapped;
+
free_user_info(&user_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ auth_ntlmssp_state->server_info->nss_token |= username_was_mapped;
+
+ nt_status = create_local_token(auth_ntlmssp_state->server_info);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(10, ("create_local_token failed: %s\n",
+ nt_errstr(nt_status)));
+ return nt_status;
+ }
+
+ if (auth_ntlmssp_state->server_info->user_session_key.length) {
+ DEBUG(10, ("Got NT session key of length %u\n",
+ (unsigned int)auth_ntlmssp_state->server_info->user_session_key.length));
+ *user_session_key = data_blob_talloc(auth_ntlmssp_state->mem_ctx,
+ auth_ntlmssp_state->server_info->user_session_key.data,
+ auth_ntlmssp_state->server_info->user_session_key.length);
+ }
+ if (auth_ntlmssp_state->server_info->lm_session_key.length) {
+ DEBUG(10, ("Got LM session key of length %u\n",
+ (unsigned int)auth_ntlmssp_state->server_info->lm_session_key.length));
+ *lm_session_key = data_blob_talloc(auth_ntlmssp_state->mem_ctx,
+ auth_ntlmssp_state->server_info->lm_session_key.data,
+ auth_ntlmssp_state->server_info->lm_session_key.length);
+ }
return nt_status;
}
mem_ctx = talloc_init("AUTH NTLMSSP context");
- *auth_ntlmssp_state = talloc_zero(mem_ctx, sizeof(**auth_ntlmssp_state));
+ *auth_ntlmssp_state = TALLOC_ZERO_P(mem_ctx, AUTH_NTLMSSP_STATE);
if (!*auth_ntlmssp_state) {
DEBUG(0,("auth_ntlmssp_start: talloc failed!\n"));
talloc_destroy(mem_ctx);
(*auth_ntlmssp_state)->ntlmssp_state->auth_context = (*auth_ntlmssp_state);
(*auth_ntlmssp_state)->ntlmssp_state->get_challenge = auth_ntlmssp_get_challenge;
+ (*auth_ntlmssp_state)->ntlmssp_state->may_set_challenge = auth_ntlmssp_may_set_challenge;
+ (*auth_ntlmssp_state)->ntlmssp_state->set_challenge = auth_ntlmssp_set_challenge;
(*auth_ntlmssp_state)->ntlmssp_state->check_password = auth_ntlmssp_check_password;
- (*auth_ntlmssp_state)->ntlmssp_state->server_role = lp_server_role();
+ (*auth_ntlmssp_state)->ntlmssp_state->server_role = (enum server_types)lp_server_role();
return NT_STATUS_OK;
}
-NTSTATUS auth_ntlmssp_end(AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
+void auth_ntlmssp_end(AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
{
- TALLOC_CTX *mem_ctx = (*auth_ntlmssp_state)->mem_ctx;
+ TALLOC_CTX *mem_ctx;
+ if (*auth_ntlmssp_state == NULL) {
+ return;
+ }
+
+ mem_ctx = (*auth_ntlmssp_state)->mem_ctx;
if ((*auth_ntlmssp_state)->ntlmssp_state) {
- ntlmssp_server_end(&(*auth_ntlmssp_state)->ntlmssp_state);
+ ntlmssp_end(&(*auth_ntlmssp_state)->ntlmssp_state);
}
if ((*auth_ntlmssp_state)->auth_context) {
((*auth_ntlmssp_state)->auth_context->free)(&(*auth_ntlmssp_state)->auth_context);
}
if ((*auth_ntlmssp_state)->server_info) {
- free_server_info(&(*auth_ntlmssp_state)->server_info);
+ TALLOC_FREE((*auth_ntlmssp_state)->server_info);
}
talloc_destroy(mem_ctx);
*auth_ntlmssp_state = NULL;
- return NT_STATUS_OK;
}
NTSTATUS auth_ntlmssp_update(AUTH_NTLMSSP_STATE *auth_ntlmssp_state,
const DATA_BLOB request, DATA_BLOB *reply)
{
- return ntlmssp_server_update(auth_ntlmssp_state->ntlmssp_state, request, reply);
+ return ntlmssp_update(auth_ntlmssp_state->ntlmssp_state, request, reply);
}
-
git.samba.org / abartlet / samba.git / .git / blobdiff