/*
- * Authenticate caller
- *
- * Kern Sibbald, October 2000
- *
- * Version $Id$
- *
- */
-/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Bacula® - The Network Backup Solution
- 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.
+ Copyright (C) 2000-2011 Free Software Foundation Europe e.V.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
+ 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 three of the GNU Affero 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., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU Affero 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.
+*/
+/*
+ * Authenticate caller
+ *
+ * Kern Sibbald, October 2000
+ *
*/
-
+
+
#include "bacula.h"
#include "stored.h"
+const int dbglvl = 50;
+
static char Dir_sorry[] = "3999 No go\n";
static char OK_hello[] = "3000 OK Hello\n";
-/*********************************************************************
+/*********************************************************************
*
*
*/
-static int authenticate(int rcode, BSOCK *bs)
+static int authenticate(int rcode, BSOCK *bs, JCR* jcr)
{
POOLMEM *dirname;
DIRRES *director = NULL;
+ 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) {
- Emsg1(M_FATAL, 0, _("I only authenticate Directors, not %d\n"), rcode);
+ Dmsg1(dbglvl, "I only authenticate Directors, not %d\n", rcode);
+ Jmsg1(jcr, M_FATAL, 0, _("I only authenticate Directors, not %d\n"), rcode);
return 0;
}
- if (bs->msglen < 25 || bs->msglen > 200) {
- 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(dbglvl, "Bad Hello command from Director at %s. Len=%d.\n",
+ bs->who(), bs->msglen);
+ Jmsg2(jcr, 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;
- Emsg2(M_FATAL, 0, _("Bad Hello command from Director at %s: %s\n"),
- bs->who, bs->msg);
+ Dmsg2(dbglvl, "Bad Hello command from Director at %s: %s\n",
+ bs->who(), bs->msg);
+ Jmsg2(jcr, M_FATAL, 0, _("Bad Hello command from Director at %s: %s\n"),
+ bs->who(), bs->msg);
return 0;
}
director = NULL;
unbash_spaces(dirname);
- LockRes();
- while ((director=(DIRRES *)GetNextRes(rcode, (RES *)director))) {
- if (strcmp(director->hdr.name, dirname) == 0)
- break;
+ foreach_res(director, rcode) {
+ if (strcmp(director->hdr.name, dirname) == 0) {
+ break;
+ }
}
- UnlockRes();
if (!director) {
- Emsg2(M_FATAL, 0, _("Connection from unknown Director %s at %s rejected.\n"),
- dirname, bs->who);
- goto bail_out;
+ Dmsg2(dbglvl, "Connection from unknown Director %s at %s rejected.\n",
+ dirname, bs->who());
+ Jmsg2(jcr, M_FATAL, 0, _("Connection from unknown Director %s at %s rejected.\n"
+ "Please see " MANUAL_AUTH_URL " for help.\n"),
+ dirname, bs->who());
+ free_pool_memory(dirname);
+ return 0;
}
- if (!cram_md5_auth(bs, director->password) ||
- !cram_md5_get_auth(bs, director->password)) {
- Emsg0(M_FATAL, 0, _("Incorrect password given by Director.\n"));
- goto bail_out;
+
+ /* 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;
+ }
+
+ 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_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(dbglvl, "cram_get_auth failed with %s\n", bs->who());
+ }
+ } else {
+ Dmsg1(dbglvl, "cram_auth failed with %s\n", bs->who());
}
- free_pool_memory(dirname);
- return 1;
-bail_out:
+ if (!auth_success) {
+ Jmsg0(jcr, M_FATAL, 0, _("Incorrect password given by Director.\n"
+ "Please see " MANUAL_AUTH_URL " 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) {
+ Jmsg0(jcr, M_FATAL, 0, _("Authorization problem: Remote server did not"
+ " advertize required TLS support.\n"));
+ Dmsg2(dbglvl, "remote_need=%d local_need=%d\n", tls_remote_need, tls_local_need);
+ 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) {
+ Jmsg0(jcr, M_FATAL, 0, _("Authorization problem: Remote server requires TLS.\n"));
+ Dmsg2(dbglvl, "remote_need=%d local_need=%d\n", tls_remote_need, tls_local_need);
+ 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)) {
+ Jmsg(jcr, M_FATAL, 0, _("TLS negotiation failed with DIR at \"%s:%d\"\n"),
+ bs->host(), bs->port());
+ auth_success = false;
+ goto auth_fatal;
+ }
+ if (director->tls_authenticate) { /* authenticate with tls only? */
+ bs->free_tls(); /* yes, shut it down */
+ }
+ }
+
+auth_fatal:
+ stop_bsock_timer(tid);
free_pool_memory(dirname);
- return 0;
+ jcr->director = director;
+ 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
{
BSOCK *dir = jcr->dir_bsock;
- if (!authenticate(R_DIRECTOR, dir)) {
- bnet_fsend(dir, "%s", Dir_sorry);
- Emsg1(M_ERROR, 0, _("Unable to authenticate Director at %s.\n"), dir->who);
- sleep(5);
+ if (!authenticate(R_DIRECTOR, dir, jcr)) {
+ dir->fsend("%s", Dir_sorry);
+ Dmsg1(dbglvl, "Unable to authenticate Director at %s.\n", dir->who());
+ Jmsg1(jcr, M_ERROR, 0, _("Unable to authenticate Director at %s.\n"), dir->who());
+ bmicrosleep(5, 0);
return 0;
}
- return bnet_fsend(dir, "%s", OK_hello);
+ return dir->fsend("%s", OK_hello);
}
int authenticate_filed(JCR *jcr)
{
BSOCK *fd = jcr->file_bsock;
+ 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_authenticate) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ }
+
+ 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);
+ /* 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(dbglvl, "Respond cram-get-auth failed with %s\n", fd->who());
+ }
+ } else {
+ Dmsg1(dbglvl, "Challenge cram-auth failed with %s\n", fd->who());
+ }
+
+ if (!auth_success) {
+ Jmsg(jcr, M_FATAL, 0, _("Incorrect authorization key from File daemon at %s rejected.\n"
+ "Please see " MANUAL_AUTH_URL " 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"
+ " advertize required TLS support.\n"));
+ Dmsg2(dbglvl, "remote_need=%d local_need=%d\n", tls_remote_need, tls_local_need);
+ auth_success = false;
+ goto auth_fatal;
+ }
- if (cram_md5_auth(fd, jcr->sd_auth_key) &&
- cram_md5_get_auth(fd, jcr->sd_auth_key)) {
- jcr->authenticated = TRUE;
+ /* 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"));
+ Dmsg2(dbglvl, "remote_need=%d local_need=%d\n", tls_remote_need, tls_local_need);
+ auth_success = false;
+ goto auth_fatal;
}
- if (!jcr->authenticated) {
- Jmsg(jcr, M_FATAL, 0, _("Incorrect authorization key from File daemon at %s rejected.\n"),
- fd->who);
+
+ 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 with FD at \"%s:%d\"\n"),
+ fd->host(), fd->port());
+ auth_success = false;
+ goto auth_fatal;
+ }
+ if (me->tls_authenticate) { /* tls authenticate only? */
+ fd->free_tls(); /* yes, shut it down */
+ }
+ }
+
+auth_fatal:
+ stop_bsock_timer(tid);
+ if (!auth_success) {
+ Jmsg(jcr, M_FATAL, 0, _("Incorrect authorization key from File daemon at %s rejected.\n"
+ "Please see " MANUAL_AUTH_URL " for help.\n"),
+ fd->who());
}
- return jcr->authenticated;
+ jcr->authenticated = auth_success;
+ return auth_success;
}
projects / bacula / bacula / blobdiff