2 Bacula® - The Network Backup Solution
4 Copyright (C) 2001-2007 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation plus additions
11 that are listed in the file LICENSE.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of John Walker.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
30 * Bacula UA authentication. Provides authentication with
33 * Kern Sibbald, June MMI
35 * This routine runs as a thread and must be thread reentrant.
37 * Basic tasks done here:
42 #include "console_conf.h"
46 void senditf(const char *fmt, ...);
47 void sendit(const char *buf);
49 /* Commands sent to Director */
50 static char hello[] = N_("Hello %s calling\n");
52 /* Response from Director */
53 static char OKhello[] = N_("1000 OK:");
55 /* Forward referenced functions */
58 * Authenticate Director
60 int authenticate_director(JCR *jcr, DIRRES *director, CONRES *cons)
62 BSOCK *dir = jcr->dir_bsock;
63 int tls_local_need = BNET_TLS_NONE;
64 int tls_remote_need = BNET_TLS_NONE;
65 int compatible = true;
66 char bashed_name[MAX_NAME_LENGTH];
68 TLS_CONTEXT *tls_ctx = NULL;
71 * Send my name to the Director then do authentication
74 bstrncpy(bashed_name, cons->hdr.name, sizeof(bashed_name));
75 bash_spaces(bashed_name);
76 password = cons->password;
78 if (cons->tls_enable) {
79 if (cons->tls_require) {
80 tls_local_need = BNET_TLS_REQUIRED;
82 tls_local_need = BNET_TLS_OK;
86 tls_ctx = cons->tls_ctx;
88 bstrncpy(bashed_name, "*UserAgent*", sizeof(bashed_name));
89 password = director->password;
91 if (director->tls_enable) {
92 if (director->tls_require) {
93 tls_local_need = BNET_TLS_REQUIRED;
95 tls_local_need = BNET_TLS_OK;
99 tls_ctx = director->tls_ctx;
103 /* Timeout Hello after 5 mins */
104 btimer_t *tid = start_bsock_timer(dir, 60 * 5);
105 bnet_fsend(dir, hello, bashed_name);
107 if (!cram_md5_respond(dir, password, &tls_remote_need, &compatible) ||
108 !cram_md5_challenge(dir, password, tls_local_need, compatible)) {
112 /* Verify that the remote host is willing to meet our TLS requirements */
113 if (tls_remote_need < tls_local_need && tls_local_need != BNET_TLS_OK && tls_remote_need != BNET_TLS_OK) {
114 sendit(_("Authorization problem:"
115 " Remote server did not advertise required TLS support.\n"));
119 /* Verify that we are willing to meet the remote host's requirements */
120 if (tls_remote_need > tls_local_need && tls_local_need != BNET_TLS_OK && tls_remote_need != BNET_TLS_OK) {
121 sendit(_("Authorization problem:"
122 " Remote server requires TLS.\n"));
126 /* Is TLS Enabled? */
128 if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) {
129 /* Engage TLS! Full Speed Ahead! */
130 if (!bnet_tls_client(tls_ctx, dir)) {
131 sendit(_("TLS negotiation failed\n"));
138 * It's possible that the TLS connection will
139 * be dropped here if an invalid client certificate was presented
141 Dmsg1(6, ">dird: %s", dir->msg);
142 if (bnet_recv(dir) <= 0) {
143 senditf(_("Bad response to Hello command: ERR=%s\n"),
148 Dmsg1(10, "<dird: %s", dir->msg);
149 if (strncmp(dir->msg, OKhello, sizeof(OKhello)-1) != 0) {
150 sendit(_("Director rejected Hello command\n"));
155 stop_bsock_timer(tid);
159 stop_bsock_timer(tid);
160 sendit( _("Director authorization problem.\n"
161 "Most likely the passwords do not agree.\n"
162 "If you are using TLS, there may have been a certificate validation error during the TLS handshake.\n"
163 "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"));