* Kern Sibbald, October 2000
*
* Version $Id$
- *
+ *
*/
/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2005 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 "filed.h"
static char Dir_sorry[] = "2999 No go\n";
-/*********************************************************************
+/*********************************************************************
*
*/
-static int authenticate(int rcode, BSOCK *bs)
+static int authenticate(int rcode, BSOCK *bs, JCR* jcr)
{
- char *name;
+ POOLMEM *dirname;
DIRRES *director;
+ int tls_local_need = BNET_TLS_NONE;
+ int tls_remote_need = BNET_TLS_NONE;
+ bool auth_success = false;
+ alist *verify_list = NULL;
if (rcode != R_DIRECTOR) {
+ Dmsg1(50, "I only authenticate directors, not %d\n", rcode);
Emsg1(M_FATAL, 0, _("I only authenticate directors, not %d\n"), rcode);
return 0;
}
- name = (char *) get_pool_memory(PM_MESSAGE);
- name = (char *) check_pool_memory_size(name, bs->msglen);
+ 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);
+ return 0;
+ }
+ dirname = get_pool_memory(PM_MESSAGE);
+ dirname = check_pool_memory_size(dirname, bs->msglen);
- if (sscanf(bs->msg, "Hello Director %s calling\n", name) != 1) {
- free_pool_memory(name);
- Emsg1(M_FATAL, 0, _("Authentication failure: %s"), bs->msg);
+ if (sscanf(bs->msg, "Hello Director %s calling\n", dirname) != 1) {
+ free_pool_memory(dirname);
+ 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);
return 0;
}
- director = NULL;
+ unbash_spaces(dirname);
LockRes();
- while ((director=(DIRRES *)GetNextRes(rcode, (RES *)director))) {
- if (strcmp(director->hdr.name, name) == 0)
- break;
+ foreach_res(director, R_DIRECTOR) {
+ if (strcmp(director->hdr.name, dirname) == 0)
+ break;
}
UnlockRes();
- if (director && (!cram_md5_auth(bs, director->password) ||
- !cram_md5_get_auth(bs, director->password))) {
+ 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/rel-manual/faq.html#AuthorizationErrors for help.\n"),
+ dirname, bs->who);
+ free_pool_memory(dirname);
+ return 0;
+ }
+
+ if (have_tls) {
+ /* 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;
+ }
+ }
+
+ btimer_t *tid = start_bsock_timer(bs, AUTH_TIMEOUT);
+ auth_success = cram_md5_auth(bs, director->password, tls_local_need);
+ if (auth_success) {
+ auth_success = cram_md5_get_auth(bs, director->password, &tls_remote_need);
+ if (!auth_success) {
+ Dmsg1(50, "cram_get_auth failed for %s\n", bs->who);
+ }
+ } else {
+ Dmsg1(50, "cram_auth failed for %s\n", bs->who);
+ }
+ if (!auth_success) {
+ Emsg1(M_FATAL, 0, _("Incorrect password given by Director at %s.\n"
+ "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"),
+ bs->who);
+ director = NULL;
+ 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"));
+ director = NULL;
+ 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"));
director = NULL;
+ goto auth_fatal;
}
- free_pool_memory(name);
+
+ if (have_tls) {
+ 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"));
+ director = NULL;
+ goto auth_fatal;
+ }
+ }
+ }
+
+auth_fatal:
+ stop_bsock_timer(tid);
+ free_pool_memory(dirname);
+ jcr->director = director;
return (director != NULL);
}
/*
* Inititiate the communications with the Director.
* He has made a connection to our server.
- *
+ *
* Basic tasks done here:
* We read Director's initial message and authorize him.
*
{
BSOCK *dir = jcr->dir_bsock;
- if (!authenticate(R_DIRECTOR, dir)) {
+ if (!authenticate(R_DIRECTOR, dir, jcr)) {
bnet_fsend(dir, "%s", Dir_sorry);
- Emsg0(M_ERROR, 0, _("Unable to authenticate Director\n"));
+ Emsg0(M_FATAL, 0, _("Unable to authenticate Director\n"));
+ bmicrosleep(5, 0);
return 0;
}
return bnet_fsend(dir, "%s", OK_hello);
int authenticate_storagedaemon(JCR *jcr)
{
BSOCK *sd = jcr->store_bsock;
+ int tls_local_need = BNET_TLS_NONE;
+ int tls_remote_need = BNET_TLS_NONE;
+ bool auth_success = false;
+
+#ifdef HAVE_TLS
+ /* TLS Requirement */
+ if (me->tls_enable) {
+ if (me->tls_require) {
+ tls_local_need = BNET_TLS_REQUIRED;
+ } else {
+ tls_local_need = BNET_TLS_OK;
+ }
+ }
+#endif /* HAVE_TLS */
+
+ btimer_t *tid = start_bsock_timer(sd, AUTH_TIMEOUT);
+ auth_success = cram_md5_get_auth(sd, jcr->sd_auth_key, &tls_remote_need);
+ if (!auth_success) {
+ Dmsg1(50, "cram_get_auth failed for %s\n", sd->who);
+ } else {
+ auth_success = cram_md5_auth(sd, jcr->sd_auth_key, tls_local_need);
+ if (!auth_success) {
+ Dmsg1(50, "cram_auth failed for %s\n", sd->who);
+ }
+ }
+
+ /* Destroy session key */
+ memset(jcr->sd_auth_key, 0, strlen(jcr->sd_auth_key));
+
+ if (!auth_success) {
+ Jmsg(jcr, M_FATAL, 0, _("Authorization key rejected by Storage daemon.\n"
+ "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"));
+ 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;
+ }
+
+#ifdef HAVE_TLS
+ if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) {
+ /* Engage TLS! Full Speed Ahead! */
+ if (!bnet_tls_client(me->tls_ctx, sd)) {
+ Jmsg(jcr, M_FATAL, 0, _("TLS negotiation failed.\n"));
+ auth_success = false;
+ goto auth_fatal;
+ }
+ }
+#endif /* HAVE_TLS */
- return cram_md5_get_auth(sd, jcr->sd_auth_key) &&
- cram_md5_auth(sd, jcr->sd_auth_key);
+auth_fatal:
+ stop_bsock_timer(tid);
+ return auth_success;
}
projects / bacula / bacula / blobdiff