libcli/auth: add netlogon_creds_cli_ServerGetTrustInfo*()
authorStefan Metzmacher <metze@samba.org>
Mon, 22 Dec 2014 20:48:18 +0000 (21:48 +0100)
committerGünther Deschner <gd@samba.org>
Wed, 21 Jan 2015 13:56:07 +0000 (14:56 +0100)
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
libcli/auth/netlogon_creds_cli.c
libcli/auth/netlogon_creds_cli.h

index a461dc600dd127edb32563bfa6f582fc312cb76b..00b0982cc642dceeb519e60d0d9466f3cc4c0692 100644 (file)
@@ -2839,3 +2839,287 @@ NTSTATUS netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords(
        TALLOC_FREE(frame);
        return status;
 }
+
+struct netlogon_creds_cli_ServerGetTrustInfo_state {
+       struct tevent_context *ev;
+       struct netlogon_creds_cli_context *context;
+       struct dcerpc_binding_handle *binding_handle;
+
+       char *srv_name_slash;
+       enum dcerpc_AuthType auth_type;
+       enum dcerpc_AuthLevel auth_level;
+
+       struct samr_Password new_owf_password;
+       struct samr_Password old_owf_password;
+       struct netr_TrustInfo *trust_info;
+
+       struct netlogon_creds_CredentialState *creds;
+       struct netlogon_creds_CredentialState tmp_creds;
+       struct netr_Authenticator req_auth;
+       struct netr_Authenticator rep_auth;
+};
+
+static void netlogon_creds_cli_ServerGetTrustInfo_cleanup(struct tevent_req *req,
+                                                    NTSTATUS status);
+static void netlogon_creds_cli_ServerGetTrustInfo_locked(struct tevent_req *subreq);
+
+struct tevent_req *netlogon_creds_cli_ServerGetTrustInfo_send(TALLOC_CTX *mem_ctx,
+                                       struct tevent_context *ev,
+                                       struct netlogon_creds_cli_context *context,
+                                       struct dcerpc_binding_handle *b)
+{
+       struct tevent_req *req;
+       struct netlogon_creds_cli_ServerGetTrustInfo_state *state;
+       struct tevent_req *subreq;
+
+       req = tevent_req_create(mem_ctx, &state,
+                               struct netlogon_creds_cli_ServerGetTrustInfo_state);
+       if (req == NULL) {
+               return NULL;
+       }
+
+       state->ev = ev;
+       state->context = context;
+       state->binding_handle = b;
+
+       state->srv_name_slash = talloc_asprintf(state, "\\\\%s",
+                                               context->server.computer);
+       if (tevent_req_nomem(state->srv_name_slash, req)) {
+               return tevent_req_post(req, ev);
+       }
+
+       dcerpc_binding_handle_auth_info(state->binding_handle,
+                                       &state->auth_type,
+                                       &state->auth_level);
+
+       subreq = netlogon_creds_cli_lock_send(state, state->ev,
+                                             state->context);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+
+       tevent_req_set_callback(subreq,
+                               netlogon_creds_cli_ServerGetTrustInfo_locked,
+                               req);
+
+       return req;
+}
+
+static void netlogon_creds_cli_ServerGetTrustInfo_cleanup(struct tevent_req *req,
+                                                        NTSTATUS status)
+{
+       struct netlogon_creds_cli_ServerGetTrustInfo_state *state =
+               tevent_req_data(req,
+               struct netlogon_creds_cli_ServerGetTrustInfo_state);
+
+       if (state->creds == NULL) {
+               return;
+       }
+
+       if (!NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED) &&
+           !NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT) &&
+           !NT_STATUS_EQUAL(status, NT_STATUS_DOWNGRADE_DETECTED) &&
+           !NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) &&
+           !NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR)) {
+               TALLOC_FREE(state->creds);
+               return;
+       }
+
+       netlogon_creds_cli_delete(state->context, &state->creds);
+}
+
+static void netlogon_creds_cli_ServerGetTrustInfo_done(struct tevent_req *subreq);
+
+static void netlogon_creds_cli_ServerGetTrustInfo_locked(struct tevent_req *subreq)
+{
+       struct tevent_req *req =
+               tevent_req_callback_data(subreq,
+               struct tevent_req);
+       struct netlogon_creds_cli_ServerGetTrustInfo_state *state =
+               tevent_req_data(req,
+               struct netlogon_creds_cli_ServerGetTrustInfo_state);
+       NTSTATUS status;
+
+       status = netlogon_creds_cli_lock_recv(subreq, state,
+                                             &state->creds);
+       TALLOC_FREE(subreq);
+       if (tevent_req_nterror(req, status)) {
+               return;
+       }
+
+       if (state->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
+               switch (state->auth_level) {
+               case DCERPC_AUTH_LEVEL_PRIVACY:
+                       break;
+               default:
+                       tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
+                       return;
+               }
+       } else {
+               tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
+               return;
+       }
+
+       /*
+        * we defer all callbacks in order to cleanup
+        * the database record.
+        */
+       tevent_req_defer_callback(req, state->ev);
+
+       state->tmp_creds = *state->creds;
+       netlogon_creds_client_authenticator(&state->tmp_creds,
+                                           &state->req_auth);
+       ZERO_STRUCT(state->rep_auth);
+
+       subreq = dcerpc_netr_ServerGetTrustInfo_send(state, state->ev,
+                                                    state->binding_handle,
+                                                    state->srv_name_slash,
+                                                    state->tmp_creds.account_name,
+                                                    state->tmp_creds.secure_channel_type,
+                                                    state->tmp_creds.computer_name,
+                                                    &state->req_auth,
+                                                    &state->rep_auth,
+                                                    &state->new_owf_password,
+                                                    &state->old_owf_password,
+                                                    &state->trust_info);
+       if (tevent_req_nomem(subreq, req)) {
+               status = NT_STATUS_NO_MEMORY;
+               netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
+               return;
+       }
+
+       tevent_req_set_callback(subreq,
+                               netlogon_creds_cli_ServerGetTrustInfo_done,
+                               req);
+}
+
+static void netlogon_creds_cli_ServerGetTrustInfo_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req =
+               tevent_req_callback_data(subreq,
+               struct tevent_req);
+       struct netlogon_creds_cli_ServerGetTrustInfo_state *state =
+               tevent_req_data(req,
+               struct netlogon_creds_cli_ServerGetTrustInfo_state);
+       NTSTATUS status;
+       NTSTATUS result;
+       const struct samr_Password zero = {};
+       int cmp;
+       bool ok;
+
+       /*
+        * We use state->dns_names as the memory context, as this is
+        * the only in/out variable and it has been overwritten by the
+        * out parameter from the server.
+        *
+        * We need to preserve the return value until the caller can use it.
+        */
+       status = dcerpc_netr_ServerGetTrustInfo_recv(subreq, state, &result);
+       TALLOC_FREE(subreq);
+       if (tevent_req_nterror(req, status)) {
+               netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
+               return;
+       }
+
+       ok = netlogon_creds_client_check(&state->tmp_creds,
+                                        &state->rep_auth.cred);
+       if (!ok) {
+               status = NT_STATUS_ACCESS_DENIED;
+               tevent_req_nterror(req, status);
+               netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
+               return;
+       }
+
+       if (tevent_req_nterror(req, result)) {
+               netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, result);
+               return;
+       }
+
+       cmp = memcmp(state->new_owf_password.hash,
+                    zero.hash, sizeof(zero.hash));
+       if (cmp != 0) {
+               netlogon_creds_des_decrypt(&state->tmp_creds,
+                                          &state->new_owf_password);
+       }
+       cmp = memcmp(state->old_owf_password.hash,
+                    zero.hash, sizeof(zero.hash));
+       if (cmp != 0) {
+               netlogon_creds_des_decrypt(&state->tmp_creds,
+                                          &state->old_owf_password);
+       }
+
+       *state->creds = state->tmp_creds;
+       status = netlogon_creds_cli_store(state->context,
+                                         &state->creds);
+       if (tevent_req_nterror(req, status)) {
+               netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
+               return;
+       }
+
+       tevent_req_done(req);
+}
+
+NTSTATUS netlogon_creds_cli_ServerGetTrustInfo_recv(struct tevent_req *req,
+                                       TALLOC_CTX *mem_ctx,
+                                       struct samr_Password *new_owf_password,
+                                       struct samr_Password *old_owf_password,
+                                       struct netr_TrustInfo **trust_info)
+{
+       struct netlogon_creds_cli_ServerGetTrustInfo_state *state =
+               tevent_req_data(req,
+               struct netlogon_creds_cli_ServerGetTrustInfo_state);
+       NTSTATUS status;
+
+       if (tevent_req_is_nterror(req, &status)) {
+               netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
+               tevent_req_received(req);
+               return status;
+       }
+
+       if (new_owf_password != NULL) {
+               *new_owf_password = state->new_owf_password;
+       }
+       if (old_owf_password != NULL) {
+               *old_owf_password = state->old_owf_password;
+       }
+       if (trust_info != NULL) {
+               *trust_info = talloc_move(mem_ctx, &state->trust_info);
+       }
+
+       tevent_req_received(req);
+       return NT_STATUS_OK;
+}
+
+NTSTATUS netlogon_creds_cli_ServerGetTrustInfo(
+                               struct netlogon_creds_cli_context *context,
+                               struct dcerpc_binding_handle *b,
+                               TALLOC_CTX *mem_ctx,
+                               struct samr_Password *new_owf_password,
+                               struct samr_Password *old_owf_password,
+                               struct netr_TrustInfo **trust_info)
+{
+       TALLOC_CTX *frame = talloc_stackframe();
+       struct tevent_context *ev;
+       struct tevent_req *req;
+       NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+       ev = samba_tevent_context_init(frame);
+       if (ev == NULL) {
+               goto fail;
+       }
+       req = netlogon_creds_cli_ServerGetTrustInfo_send(frame, ev, context, b);
+       if (req == NULL) {
+               goto fail;
+       }
+       if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+               goto fail;
+       }
+       status = netlogon_creds_cli_ServerGetTrustInfo_recv(req,
+                                                           mem_ctx,
+                                                           new_owf_password,
+                                                           old_owf_password,
+                                                           trust_info);
+ fail:
+       TALLOC_FREE(frame);
+       return status;
+}
index a910259a88bbdc9799205a675ba20bcc571c4a93..945b7d38ede86fe10fe43fee3e8fa2e1d29a7233 100644 (file)
@@ -147,4 +147,21 @@ NTSTATUS netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords(
                                uint32_t dns_ttl,
                                struct NL_DNS_NAME_INFO_ARRAY *dns_names);
 
+struct tevent_req *netlogon_creds_cli_ServerGetTrustInfo_send(TALLOC_CTX *mem_ctx,
+                                       struct tevent_context *ev,
+                                       struct netlogon_creds_cli_context *context,
+                                       struct dcerpc_binding_handle *b);
+NTSTATUS netlogon_creds_cli_ServerGetTrustInfo_recv(struct tevent_req *req,
+                                       TALLOC_CTX *mem_ctx,
+                                       struct samr_Password *new_owf_password,
+                                       struct samr_Password *old_owf_password,
+                                       struct netr_TrustInfo **trust_info);
+NTSTATUS netlogon_creds_cli_ServerGetTrustInfo(
+                               struct netlogon_creds_cli_context *context,
+                               struct dcerpc_binding_handle *b,
+                               TALLOC_CTX *mem_ctx,
+                               struct samr_Password *new_owf_password,
+                               struct samr_Password *old_owf_password,
+                               struct netr_TrustInfo **trust_info);
+
 #endif /* NETLOGON_CREDS_CLI_H */