* Version $Id$
*/
/*
- Copyright (C) 2000-2006 Kern Sibbald
+ 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
- version 2 as amended with additional clauses defined in the
- file LICENSE in the main source directory.
+ Copyright (C) 2001-2006 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
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- the file LICENSE for additional details.
+ 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 plus additions
+ that are listed 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 John Walker.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
#include "bacula.h"
* BNET_TLS_NONE I cannot do tls
* BNET_TLS_OK I can do tls, but it is not required on my end
* BNET_TLS_REQUIRED tls is required on my end
+ *
+ * Returns: false if authentication failed
+ * true if OK
*/
-int cram_md5_auth(BSOCK *bs, char *password, int tls_local_need)
+bool cram_md5_challenge(BSOCK *bs, char *password, int tls_local_need, int compatible)
{
struct timeval t1;
struct timeval t2;
struct timezone tz;
- int i, ok;
+ int i;
+ bool ok;
char chal[MAXSTRING];
char host[MAXSTRING];
uint8_t hmac[20];
if (!gethostname(host, sizeof(host))) {
bstrncpy(host, my_name, sizeof(host));
}
+ /* Send challenge -- no hashing yet */
bsnprintf(chal, sizeof(chal), "<%u.%u@%s>", (uint32_t)random(), (uint32_t)time(NULL), host);
- Dmsg2(50, "send: auth cram-md5 %s ssl=%d\n", chal, tls_local_need);
- if (!bnet_fsend(bs, "auth cram-md5 %s ssl=%d\n", chal, tls_local_need)) {
- Dmsg1(50, "Bnet send challenge error.\n", bnet_strerror(bs));
- return 0;
+ if (compatible) {
+ Dmsg2(50, "send: auth cram-md5 %s ssl=%d\n", chal, tls_local_need);
+ if (!bnet_fsend(bs, "auth cram-md5 %s ssl=%d\n", chal, tls_local_need)) {
+ Dmsg1(50, "Bnet send challenge error.\n", bnet_strerror(bs));
+ return false;
+ }
+ } else {
+ /* Old non-compatible system */
+ Dmsg2(50, "send: auth cram-md5 %s ssl=%d\n", chal, tls_local_need);
+ if (!bnet_fsend(bs, "auth cram-md5 %s ssl=%d\n", chal, tls_local_need)) {
+ Dmsg1(50, "Bnet send challenge error.\n", bnet_strerror(bs));
+ return false;
+ }
}
+ /* Read hashed response to challenge */
if (bnet_wait_data(bs, 180) <= 0 || bnet_recv(bs) <= 0) {
Dmsg1(50, "Bnet receive challenge response error.\n", bnet_strerror(bs));
bmicrosleep(5, 0);
- return 0;
+ return false;
}
+
+ /* Attempt to duplicate hash with our password */
hmac_md5((uint8_t *)chal, strlen(chal), (uint8_t *)password, strlen(password), hmac);
- bin_to_base64(host, (char *)hmac, 16);
-// Dmsg3(100, "auth: chal=%s pw=%s hmac=%s\n", chal, password, host);
+ bin_to_base64(host, sizeof(host), (char *)hmac, 16, compatible);
ok = strcmp(bs->msg, host) == 0;
if (ok) {
Dmsg1(50, "Authenticate OK %s\n", host);
} else {
- Dmsg2(50, "Authenticate NOT OK: wanted %s, got %s\n", host, bs->msg);
+ bin_to_base64(host, sizeof(host), (char *)hmac, 16, false);
+ ok = strcmp(bs->msg, host) == 0;
+ if (!ok) {
+ Dmsg2(50, "Authenticate NOT OK: wanted %s, got %s\n", host, bs->msg);
+ }
}
if (ok) {
bnet_fsend(bs, "1000 OK auth\n");
return ok;
}
-/* Get authorization from other end */
-int cram_md5_get_auth(BSOCK *bs, char *password, int *tls_remote_need)
+/* Respond to challenge from other end */
+bool cram_md5_respond(BSOCK *bs, char *password, int *tls_remote_need, int *compatible)
{
char chal[MAXSTRING];
uint8_t hmac[20];
+ *compatible = false;
if (bnet_recv(bs) <= 0) {
bmicrosleep(5, 0);
- return 0;
+ return false;
}
if (bs->msglen >= MAXSTRING) {
Dmsg1(50, "Msg too long wanted auth cram... Got: %s", bs->msg);
bmicrosleep(5, 0);
- return 0;
+ return false;
}
Dmsg1(100, "cram-get: %s", bs->msg);
- if (sscanf(bs->msg, "auth cram-md5 %s ssl=%d\n", chal, tls_remote_need) != 2) {
+ if (sscanf(bs->msg, "auth cram-md5c %s ssl=%d", chal, tls_remote_need) == 2) {
+ *compatible = true;
+ } else if (sscanf(bs->msg, "auth cram-md5 %s ssl=%d", chal, tls_remote_need) != 2) {
if (sscanf(bs->msg, "auth cram-md5 %s\n", chal) != 1) {
Dmsg1(50, "Cannot scan challenge: %s", bs->msg);
bnet_fsend(bs, _("1999 Authorization failed.\n"));
bmicrosleep(5, 0);
- return 0;
+ return false;
}
}
hmac_md5((uint8_t *)chal, strlen(chal), (uint8_t *)password, strlen(password), hmac);
- bs->msglen = bin_to_base64(bs->msg, (char *)hmac, 16) + 1;
+ bs->msglen = bin_to_base64(bs->msg, 50, (char *)hmac, 16, *compatible) + 1;
// Dmsg3(100, "get_auth: chal=%s pw=%s hmac=%s\n", chal, password, bs->msg);
if (!bnet_send(bs)) {
Dmsg1(50, "Send challenge failed. ERR=%s\n", bnet_strerror(bs));
- return 0;
+ return false;
}
Dmsg1(99, "sending resp to challenge: %s\n", bs->msg);
if (bnet_wait_data(bs, 180) <= 0 || bnet_recv(bs) <= 0) {
Dmsg1(50, "Receive chanllenge response failed. ERR=%s\n", bnet_strerror(bs));
bmicrosleep(5, 0);
- return 0;
+ return false;
}
if (strcmp(bs->msg, "1000 OK auth\n") == 0) {
- return 1;
+ return true;
}
Dmsg1(50, "Bad auth response: %s\n", bs->msg);
bmicrosleep(5, 0);
- return 0;
+ return false;
}
projects / bacula / bacula / blobdiff