* Kern Sibbald, October 2000
*
* Version $Id$
- *
+ *
*/
/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2006 Kern Sibbald
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.
+ modify it under the terms of the GNU General Public License
+ version 2 as amended with additional clauses defined in the
+ file LICENSE in the main source directory.
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.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ the file LICENSE for additional details.
*/
-
+
#include "bacula.h"
#include "stored.h"
static char OK_hello[] = "3000 OK Hello\n";
-/*********************************************************************
+/*********************************************************************
*
*
*/
{
POOLMEM *dirname;
DIRRES *director = NULL;
- int ssl_need = BNET_SSL_NONE;
- bool auth, get_auth = false;
+ int tls_local_need = BNET_TLS_NONE;
+ int tls_remote_need = BNET_TLS_NONE;
+ int compatible = true; /* require md5 compatible DIR */
+ bool auth_success = false;
+ alist *verify_list = NULL;
if (rcode != R_DIRECTOR) {
- Dmsg1(50, _("I only authenticate Directors, not %d\n"), rcode);
+ Dmsg1(50, "I only authenticate Directors, not %d\n", rcode);
Emsg1(M_FATAL, 0, _("I only authenticate Directors, not %d\n"), rcode);
return 0;
}
- if (bs->msglen < 25 || bs->msglen > 200) {
- Dmsg2(50, _("Bad Hello command from Director at %s. Len=%d.\n"),
- bs->who, bs->msglen);
- Emsg2(M_FATAL, 0, _("Bad Hello command from Director at %s. Len=%d.\n"),
- bs->who, bs->msglen);
+ if (bs->msglen < 25 || bs->msglen > 500) {
+ Dmsg2(50, "Bad Hello command from Director at %s. Len=%d.\n",
+ bs->who, bs->msglen);
+ Emsg2(M_FATAL, 0, _("Bad Hello command from Director at %s. Len=%d.\n"),
+ bs->who, bs->msglen);
return 0;
}
dirname = get_pool_memory(PM_MESSAGE);
dirname = check_pool_memory_size(dirname, bs->msglen);
- if (sscanf(bs->msg, "Hello Director %127s calling\n", dirname) != 1) {
+ if (sscanf(bs->msg, "Hello Director %127s calling", dirname) != 1) {
bs->msg[100] = 0;
- Dmsg2(50, _("Bad Hello command from Director at %s: %s\n"),
- bs->who, bs->msg);
- Emsg2(M_FATAL, 0, _("Bad Hello command from Director at %s: %s\n"),
- bs->who, bs->msg);
+ Dmsg2(50, "Bad Hello command from Director at %s: %s\n",
+ bs->who, bs->msg);
+ Emsg2(M_FATAL, 0, _("Bad Hello command from Director at %s: %s\n"),
+ bs->who, bs->msg);
return 0;
}
director = NULL;
unbash_spaces(dirname);
- LockRes();
foreach_res(director, rcode) {
if (strcmp(director->hdr.name, dirname) == 0)
- break;
+ break;
}
- UnlockRes();
if (!director) {
- Dmsg2(50, _("Connection from unknown Director %s at %s rejected.\n"),
- dirname, bs->who);
- Emsg2(M_FATAL, 0, _("Connection from unknown Director %s at %s rejected.\n"
- "Please see http://www.bacula.org/html-manual/faq.html#AuthorizationErrors for help.\n"),
- dirname, bs->who);
+ Dmsg2(50, "Connection from unknown Director %s at %s rejected.\n",
+ dirname, bs->who);
+ Emsg2(M_FATAL, 0, _("Connection from unknown Director %s at %s rejected.\n"
+ "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"),
+ dirname, bs->who);
free_pool_memory(dirname);
return 0;
}
+ /* 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_verify_peer) {
+ verify_list = director->tls_allowed_cns;
+ }
+
/* Timeout Hello after 10 mins */
btimer_t *tid = start_bsock_timer(bs, AUTH_TIMEOUT);
- auth = cram_md5_auth(bs, director->password, ssl_need);
- if (auth) {
- get_auth = cram_md5_get_auth(bs, director->password, ssl_need);
- if (!get_auth) {
+ auth_success = cram_md5_challenge(bs, director->password, tls_local_need, compatible);
+ if (auth_success) {
+ auth_success = cram_md5_respond(bs, director->password, &tls_remote_need, &compatible);
+ if (!auth_success) {
Dmsg1(50, "cram_get_auth failed with %s\n", bs->who);
}
} else {
Dmsg1(50, "cram_auth failed with %s\n", bs->who);
}
- if (!auth || !get_auth) {
- stop_bsock_timer(tid);
- Emsg0(M_FATAL, 0, _("Incorrect password given by Director.\n"
- "Please see http://www.bacula.org/html-manual/faq.html#AuthorizationErrors for help.\n"));
- free_pool_memory(dirname);
- return 0;
+
+ if (!auth_success) {
+ Emsg0(M_FATAL, 0, _("Incorrect password given by Director.\n"
+ "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+
+ /* 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) {
+ Emsg0(M_FATAL, 0, _("Authorization problem: Remote server did not"
+ " advertise required TLS support.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+
+ /* 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) {
+ Emsg0(M_FATAL, 0, _("Authorization problem: Remote server requires TLS.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+
+ if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) {
+ /* Engage TLS! Full Speed Ahead! */
+ if (!bnet_tls_server(director->tls_ctx, bs, verify_list)) {
+ Emsg0(M_FATAL, 0, _("TLS negotiation failed.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
}
+
+auth_fatal:
stop_bsock_timer(tid);
free_pool_memory(dirname);
jcr->director = director;
- return 1;
+ return auth_success;
}
/*
* Inititiate the message channel with the Director.
* He has made a connection to our server.
- *
+ *
* Basic tasks done here:
* Assume the Hello message is already in the input
- * buffer. We then authenticate him.
+ * buffer. We then authenticate him.
* Get device, media, and pool information from Director
*
* This is the channel across which we will send error
if (!authenticate(R_DIRECTOR, dir, jcr)) {
bnet_fsend(dir, "%s", Dir_sorry);
- Dmsg1(50, _("Unable to authenticate Director at %s.\n"), dir->who);
+ Dmsg1(50, "Unable to authenticate Director at %s.\n", dir->who);
Emsg1(M_ERROR, 0, _("Unable to authenticate Director at %s.\n"), dir->who);
bmicrosleep(5, 0);
return 0;
int authenticate_filed(JCR *jcr)
{
BSOCK *fd = jcr->file_bsock;
- int ssl_need = BNET_SSL_NONE;
- bool auth, get_auth = false;
+ int tls_local_need = BNET_TLS_NONE;
+ int tls_remote_need = BNET_TLS_NONE;
+ int compatible = true; /* require md5 compatible FD */
+ bool auth_success = false;
+ alist *verify_list = NULL;
+
+ /* TLS Requirement */
+ if (me->tls_enable) {
+ if (me->tls_require) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ } else {
+ tls_local_need = BNET_TLS_OK;
+ }
+ }
+
+ if (me->tls_verify_peer) {
+ verify_list = me->tls_allowed_cns;
+ }
/* Timeout Hello after 5 mins */
btimer_t *tid = start_bsock_timer(fd, AUTH_TIMEOUT);
- auth = cram_md5_auth(fd, jcr->sd_auth_key, ssl_need);
- if (auth) {
- get_auth = cram_md5_get_auth(fd, jcr->sd_auth_key, ssl_need);
- if (!get_auth) {
+ /* Challenge FD */
+ auth_success = cram_md5_challenge(fd, jcr->sd_auth_key, tls_local_need, compatible);
+ if (auth_success) {
+ /* Respond to his challenge */
+ auth_success = cram_md5_respond(fd, jcr->sd_auth_key, &tls_remote_need, &compatible);
+ if (!auth_success) {
Dmsg1(50, "cram-get-auth failed with %s\n", fd->who);
}
} else {
Dmsg1(50, "cram-auth failed with %s\n", fd->who);
}
- if (auth && get_auth) {
- jcr->authenticated = true;
+
+ if (!auth_success) {
+ Jmsg(jcr, M_FATAL, 0, _("Incorrect authorization key from File daemon at %s rejected.\n"
+ "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"),
+ fd->who);
+ auth_success = false;
+ goto auth_fatal;
}
+
+ /* 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) {
+ Jmsg(jcr, M_FATAL, 0, _("Authorization problem: Remote server did not"
+ " advertise required TLS support.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+
+ /* 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) {
+ Jmsg(jcr, M_FATAL, 0, _("Authorization problem: Remote server requires TLS.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+
+ if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) {
+ /* Engage TLS! Full Speed Ahead! */
+ if (!bnet_tls_server(me->tls_ctx, fd, verify_list)) {
+ Jmsg(jcr, M_FATAL, 0, _("TLS negotiation failed.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+ }
+
+auth_fatal:
stop_bsock_timer(tid);
- if (!jcr->authenticated) {
+ if (!auth_success) {
Jmsg(jcr, M_FATAL, 0, _("Incorrect authorization key from File daemon at %s rejected.\n"
- "Please see http://www.bacula.org/html-manual/faq.html#AuthorizationErrors for help.\n"),
- fd->who);
+ "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"),
+ fd->who);
}
- return jcr->authenticated;
+ jcr->authenticated = auth_success;
+ return auth_success;
}