- authctxt->postponed = 0;
- dispatch_set(SSH_MSG_AUTH_GSSAPI_TOKEN, NULL);
- dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL);
- userauth_finish(authctxt, 0, "gssapi");
- }
-
- if (maj_status == GSS_S_COMPLETE) {
- dispatch_set(SSH_MSG_AUTH_GSSAPI_TOKEN, NULL);
- dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN,NULL);
- /* ssh1 does not have an extra message here */
- if (!compat20)
- input_gssapi_exchange_complete(0, 0, ctxt);
- else
- dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE,
- &input_gssapi_exchange_complete);
+ authctxt->postponed = 0;
+ dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL);
+ userauth_finish(authctxt, 0, "gssapi-with-mic");
+ } else {
+ if (send_tok.length != 0) {
+ packet_start(SSH2_MSG_USERAUTH_GSSAPI_TOKEN);
+ packet_put_string(send_tok.value, send_tok.length);
+ packet_send();
+ }
+ if (maj_status == GSS_S_COMPLETE) {
+ dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL);
+ if (flags & GSS_C_INTEG_FLAG)
+ dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_MIC,
+ &input_gssapi_mic);
+ else
+ dispatch_set(
+ SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE,
+ &input_gssapi_exchange_complete);
+ }
+ }
+
+ gss_release_buffer(&min_status, &send_tok);
+}
+
+static void
+input_gssapi_errtok(int type, u_int32_t plen, void *ctxt)
+{
+ Authctxt *authctxt = ctxt;
+ Gssctxt *gssctxt;
+ gss_buffer_desc send_tok = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc recv_tok;
+ OM_uint32 maj_status;
+ u_int len;
+
+ if (authctxt == NULL || (authctxt->methoddata == NULL && !use_privsep))
+ fatal("No authentication or GSSAPI context");
+
+ gssctxt = authctxt->methoddata;
+ recv_tok.value = packet_get_string(&len);
+ recv_tok.length = len;
+
+ packet_check_eom();
+
+ /* Push the error token into GSSAPI to see what it says */
+ maj_status = PRIVSEP(ssh_gssapi_accept_ctx(gssctxt, &recv_tok,
+ &send_tok, NULL));
+
+ xfree(recv_tok.value);
+
+ /* We can't return anything to the client, even if we wanted to */
+ dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL);
+ dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_ERRTOK, NULL);
+
+ /* The client will have already moved on to the next auth */
+
+ gss_release_buffer(&maj_status, &send_tok);
+}
+
+static void
+gssapi_set_username(Authctxt *authctxt)
+{
+ char *lname = NULL;
+
+ if ((authctxt->user == NULL) || (authctxt->user[0] == '\0')) {
+ PRIVSEP(ssh_gssapi_localname(&lname));
+ if (lname && lname[0] != '\0') {
+ if (authctxt->user) xfree(authctxt->user);
+ authctxt->user = lname;
+ debug("set username to %s from gssapi context", lname);
+ authctxt->pw = PRIVSEP(getpwnamallow(authctxt->user));
+ if (authctxt->pw) {
+ authctxt->valid = 1;
+#ifdef USE_PAM
+ if (options.use_pam)
+ PRIVSEP(start_pam(authctxt));
+#endif
+ }
+ } else {
+ debug("failed to set username from gssapi context");
+ packet_send_debug("failed to set username from gssapi context");