+/*
+ Bacula® - The Network Backup Solution
+
+ Copyright (C) 2001-2007 Free Software Foundation Europe e.V.
+
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version two of the GNU General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+ Bacula® is a registered trademark of Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
/*
*
* Bacula UA authentication. Provides authentication with
* Basic tasks done here:
*
*/
-/*
- Copyright (C) 2000, 2001 Kern Sibbald and John Walker
-
- 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 (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
#include "bacula.h"
#include "console_conf.h"
#include "jcr.h"
+void senditf(const char *fmt, ...);
+void sendit(const char *buf);
+
/* Commands sent to Director */
static char hello[] = "Hello %s calling\n";
/*
* Authenticate Director
*/
-int authenticate_director(JCR *jcr, DIRRES *director)
+int authenticate_director(JCR *jcr, DIRRES *director, CONRES *cons)
{
BSOCK *dir = jcr->dir_bsock;
- int ssl_need = BNET_SSL_NONE;
+ int tls_local_need = BNET_TLS_NONE;
+ int tls_remote_need = BNET_TLS_NONE;
+ bool tls_needed;
+ bool tls_authenticate;
+ int compatible = true;
+ char bashed_name[MAX_NAME_LENGTH];
+ char *password;
+ TLS_CONTEXT *tls_ctx = NULL;
- /*
+ /*
* Send my name to the Director then do authentication
*/
- bnet_fsend(dir, hello, "UserAgent");
+ if (cons) {
+ bstrncpy(bashed_name, cons->hdr.name, sizeof(bashed_name));
+ bash_spaces(bashed_name);
+ password = cons->password;
+ /* TLS Requirement */
+ if (cons->tls_enable) {
+ if (cons->tls_require) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ } else {
+ tls_local_need = BNET_TLS_OK;
+ }
+ }
+ if (cons->tls_authenticate) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ }
+ tls_authenticate = cons->tls_authenticate;
+ tls_needed = cons->tls_enable || cons->tls_authenticate;
+ tls_ctx = cons->tls_ctx;
+ } else {
+ bstrncpy(bashed_name, "*UserAgent*", sizeof(bashed_name));
+ password = director->password;
+ /* TLS Requirement */
+ if (director->tls_enable) {
+ if (director->tls_require) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ } else {
+ tls_local_need = BNET_TLS_OK;
+ }
+ }
+
+ if (director->tls_authenticate) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ }
+ tls_authenticate = director->tls_authenticate;
+ tls_needed = director->tls_enable || director->tls_authenticate;
+ tls_ctx = director->tls_ctx;
+ }
+
+
+ /* Timeout Hello after 5 mins */
+ btimer_t *tid = start_bsock_timer(dir, 60 * 5);
+ dir->fsend(hello, bashed_name);
+
+ if (!cram_md5_respond(dir, password, &tls_remote_need, &compatible) ||
+ !cram_md5_challenge(dir, password, tls_local_need, compatible)) {
+ goto bail_out;
+ }
- if (!cram_md5_get_auth(dir, director->password, ssl_need) ||
- !cram_md5_auth(dir, director->password, ssl_need)) {
- Pmsg0(-1, _("Director authorization problem.\n"
- "Most likely the passwords do not agree.\n"));
- return 0;
+ /* Verify that the remote host is willing to meet our TLS requirements */
+ if (tls_remote_need < tls_local_need && tls_local_need != BNET_TLS_OK && tls_remote_need != BNET_TLS_OK) {
+ sendit(_("Authorization problem:"
+ " Remote server did not advertise required TLS support.\n"));
+ goto bail_out;
}
+ /* Verify that we are willing to meet the remote host's requirements */
+ if (tls_remote_need > tls_local_need && tls_local_need != BNET_TLS_OK && tls_remote_need != BNET_TLS_OK) {
+ sendit(_("Authorization problem:"
+ " Remote server requires TLS.\n"));
+ goto bail_out;
+ }
+
+ /* Is TLS Enabled? */
+ if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) {
+ /* Engage TLS! Full Speed Ahead! */
+ if (!bnet_tls_client(tls_ctx, dir, NULL)) {
+ sendit(_("TLS negotiation failed\n"));
+ goto bail_out;
+ }
+ if (tls_authenticate) { /* Authenticate only? */
+ dir->free_tls(); /* yes, shutdown tls */
+ }
+ }
+
+ /*
+ * It's possible that the TLS connection will
+ * be dropped here if an invalid client certificate was presented
+ */
Dmsg1(6, ">dird: %s", dir->msg);
- if (bnet_recv(dir) <= 0) {
- Pmsg1(-1, "Bad response to Hello command: ERR=%s\n",
- bnet_strerror(dir));
- Pmsg0(-1, "The Director is probably not running.\n");
- return 0;
+ if (dir->recv() <= 0) {
+ senditf(_("Bad response to Hello command: ERR=%s\n"),
+ dir->bstrerror());
+ goto bail_out;
}
+
Dmsg1(10, "<dird: %s", dir->msg);
if (strncmp(dir->msg, OKhello, sizeof(OKhello)-1) != 0) {
- Pmsg0(-1, "Director rejected Hello command\n");
- return 0;
+ sendit(_("Director rejected Hello command\n"));
+ goto bail_out;
} else {
- Pmsg1(-1, "%s", dir->msg);
+ sendit(dir->msg);
}
+ stop_bsock_timer(tid);
return 1;
+
+bail_out:
+ stop_bsock_timer(tid);
+ sendit( _("Director authorization problem.\n"
+ "Most likely the passwords do not agree.\n"
+ "If you are using TLS, there may have been a certificate validation error during the TLS handshake.\n"
+ "Please see http://www.bacula.org/en/rel-manual/Bacula_Freque_Asked_Questi.html#SECTION003760000000000000000 for help.\n"));
+ return 0;
}
projects / bacula / bacula / blobdiff