X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fdird%2Fauthenticate.c;h=23b5d5f4f570005e6b78f6e049a52f6f9419fc78;hb=db05f326a4e98069ab685b3447a3e87037d1b7d8;hp=f2f0bdb2698e185cdb49ccbfa456b4fc0f15a645;hpb=58702591340a7f44f8676de8a7a1165b91b3738e;p=bacula%2Fbacula diff --git a/bacula/src/dird/authenticate.c b/bacula/src/dird/authenticate.c index f2f0bdb269..23b5d5f4f5 100644 --- a/bacula/src/dird/authenticate.c +++ b/bacula/src/dird/authenticate.c @@ -11,30 +11,37 @@ * */ /* - 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) 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 + 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., 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. + 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" #include "dird.h" extern DIRRES *director; -extern char my_name[]; /* Commands sent to Storage daemon and File daemon and received * from the User Agent */ @@ -45,48 +52,106 @@ static char OKhello[] = "3000 OK Hello\n"; static char FDOKhello[] = "2000 OK Hello\n"; /* Sent to User Agent */ -static char Dir_sorry[] = N_("1999 You are not authorized.\n"); +static char Dir_sorry[] = "1999 You are not authorized.\n"; /* Forward referenced functions */ /* * Authenticate Storage daemon connection */ -int authenticate_storage_daemon(JCR *jcr) +bool authenticate_storage_daemon(JCR *jcr, STORE *store) { BSOCK *sd = jcr->store_bsock; char dirname[MAX_NAME_LENGTH]; - int ssl_need = BNET_SSL_NONE; + int tls_local_need = BNET_TLS_NONE; + int tls_remote_need = BNET_TLS_NONE; + int compatible = true; + bool auth_success = false; - /* + /* * Send my name to the Storage daemon then do authentication */ bstrncpy(dirname, director->hdr.name, sizeof(dirname)); bash_spaces(dirname); - /* Timeout Hello after 5 mins */ - btimer_t *tid = start_bsock_timer(sd, 60 * 5); + /* Timeout Hello after 1 min */ + btimer_t *tid = start_bsock_timer(sd, AUTH_TIMEOUT); if (!bnet_fsend(sd, hello, dirname)) { stop_bsock_timer(tid); + Dmsg1(50, _("Error sending Hello to Storage daemon. ERR=%s\n"), bnet_strerror(sd)); Jmsg(jcr, M_FATAL, 0, _("Error sending Hello to Storage daemon. ERR=%s\n"), bnet_strerror(sd)); return 0; } - if (!cram_md5_get_auth(sd, jcr->store->password, ssl_need) || - !cram_md5_auth(sd, jcr->store->password, ssl_need)) { + + /* TLS Requirement */ + if (store->tls_enable) { + if (store->tls_require) { + tls_local_need = BNET_TLS_REQUIRED; + } else { + tls_local_need = BNET_TLS_OK; + } + } + + auth_success = cram_md5_respond(sd, store->password, &tls_remote_need, &compatible); + if (auth_success) { + auth_success = cram_md5_challenge(sd, store->password, tls_local_need, compatible); + if (!auth_success) { + Dmsg1(50, "cram_challenge failed for %s\n", sd->who()); + } + } else { + Dmsg1(50, "cram_respond failed for %s\n", sd->who()); + } + + if (!auth_success) { + stop_bsock_timer(tid); + Dmsg0(50, _("Director and Storage daemon passwords or names not the same.\n")); + Jmsg2(jcr, M_FATAL, 0, + _("Director unable to authenticate with Storage daemon on \"%s:%d\". Possible causes:\n" + "Passwords or names not the same or\n" + "Maximum Concurrent Jobs exceeded on the SD or\n" + "SD networking messed up (restart daemon).\n" + "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"), + sd->host(), sd->port()); + return 0; + } + + /* 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) { stop_bsock_timer(tid); - Jmsg0(jcr, M_FATAL, 0, _("Director and Storage daemon passwords or names not the same.\n")); + Jmsg(jcr, M_FATAL, 0, _("Authorization problem: Remote server did not advertise required TLS support.\n")); return 0; } + + /* 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) { + stop_bsock_timer(tid); + Jmsg(jcr, M_FATAL, 0, _("Authorization problem: Remote server requires TLS.\n")); + return 0; + } + + /* Is TLS Enabled? */ + if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) { + /* Engage TLS! Full Speed Ahead! */ + if (!bnet_tls_client(store->tls_ctx, sd, NULL)) { + stop_bsock_timer(tid); + Jmsg(jcr, M_FATAL, 0, _("TLS negotiation failed with SD on \"%s:%d\"\n"), + sd->host(), sd->port()); + return 0; + } + } + Dmsg1(116, ">stored: %s", sd->msg); if (bnet_recv(sd) <= 0) { stop_bsock_timer(tid); - Jmsg1(jcr, M_FATAL, 0, _("bdirdwho(), sd->host(), bnet_strerror(sd)); return 0; } Dmsg1(110, "msg); stop_bsock_timer(tid); if (strncmp(sd->msg, OKhello, sizeof(OKhello)) != 0) { - Jmsg0(jcr, M_FATAL, 0, _("Storage daemon rejected Hello command\n")); + Dmsg0(50, _("Storage daemon rejected Hello command\n")); + Jmsg2(jcr, M_FATAL, 0, _("Storage daemon on \"%s:%d\" rejected Hello command\n"), + sd->host(), sd->port()); return 0; } return 1; @@ -98,90 +163,227 @@ int authenticate_storage_daemon(JCR *jcr) int authenticate_file_daemon(JCR *jcr) { BSOCK *fd = jcr->file_bsock; + CLIENT *client = jcr->client; char dirname[MAX_NAME_LENGTH]; - int ssl_need = BNET_SSL_NONE; + int tls_local_need = BNET_TLS_NONE; + int tls_remote_need = BNET_TLS_NONE; + int compatible = true; + bool auth_success = false; - /* + /* * Send my name to the File daemon then do authentication */ bstrncpy(dirname, director->hdr.name, sizeof(dirname)); bash_spaces(dirname); - /* Timeout Hello after 5 mins */ - btimer_t *tid = start_bsock_timer(fd, 60 * 5); + /* Timeout Hello after 10 mins */ + btimer_t *tid = start_bsock_timer(fd, AUTH_TIMEOUT); if (!bnet_fsend(fd, hello, dirname)) { stop_bsock_timer(tid); - Jmsg(jcr, M_FATAL, 0, _("Error sending Hello to File daemon. ERR=%s\n"), bnet_strerror(fd)); + Jmsg(jcr, M_FATAL, 0, _("Error sending Hello to File daemon on \"%s:%d\". ERR=%s\n"), + fd->host(), fd->port(), bnet_strerror(fd)); return 0; } - if (!cram_md5_get_auth(fd, jcr->client->password, ssl_need) || - !cram_md5_auth(fd, jcr->client->password, ssl_need)) { + Dmsg1(50, "Sent: %s", fd->msg); + + /* TLS Requirement */ + if (client->tls_enable) { + if (client->tls_require) { + tls_local_need = BNET_TLS_REQUIRED; + } else { + tls_local_need = BNET_TLS_OK; + } + } + + auth_success = cram_md5_respond(fd, client->password, &tls_remote_need, &compatible); + if (auth_success) { + auth_success = cram_md5_challenge(fd, client->password, tls_local_need, compatible); + if (!auth_success) { + Dmsg1(50, "cram_auth failed for %s\n", fd->who()); + } + } else { + Dmsg1(50, "cram_get_auth failed for %s\n", fd->who()); + } + if (!auth_success) { + stop_bsock_timer(tid); + Dmsg0(50, _("Director and File daemon passwords or names not the same.\n")); + Jmsg(jcr, M_FATAL, 0, + _("Unable to authenticate with File daemon on \"%s:%d\". Possible causes:\n" + "Passwords or names not the same or\n" + "Maximum Concurrent Jobs exceeded on the FD or\n" + "FD networking messed up (restart daemon).\n" + "Please see http://www.bacula.org/rel-manual/faq.html#AuthorizationErrors for help.\n"), + fd->host(), fd->port()); + return 0; + } + + /* 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) { stop_bsock_timer(tid); - Jmsg(jcr, M_FATAL, 0, _("Director and File daemon passwords or names not the same.\n")); + Jmsg(jcr, M_FATAL, 0, _("Authorization problem: FD \"%s:%s\" did not advertise required TLS support.\n"), + fd->who(), fd->host()); return 0; } + + /* 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) { + stop_bsock_timer(tid); + Jmsg(jcr, M_FATAL, 0, _("Authorization problem: FD on \"%s:%d\" requires TLS.\n"), + fd->host(), fd->port()); + return 0; + } + + /* Is TLS Enabled? */ + if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) { + /* Engage TLS! Full Speed Ahead! */ + if (!bnet_tls_client(client->tls_ctx, fd, client->tls_allowed_cns)) { + + stop_bsock_timer(tid); + Jmsg(jcr, M_FATAL, 0, _("TLS negotiation failed with FD on \"%s:%d\".\n"), + fd->host(), fd->port()); + return 0; + } + } + Dmsg1(116, ">filed: %s", fd->msg); if (bnet_recv(fd) <= 0) { stop_bsock_timer(tid); - Jmsg(jcr, M_FATAL, 0, _("Bad response from File daemon to Hello command: ERR=%s\n"), - bnet_strerror(fd)); + Dmsg1(50, _("Bad response from File daemon to Hello command: ERR=%s\n"), + bnet_strerror(fd)); + Jmsg(jcr, M_FATAL, 0, _("Bad response from File daemon on \"%s:%d\" to Hello command: ERR=%s\n"), + fd->host(), fd->port(), bnet_strerror(fd)); return 0; } Dmsg1(110, "msg); stop_bsock_timer(tid); if (strncmp(fd->msg, FDOKhello, sizeof(FDOKhello)) != 0) { - Jmsg(jcr, M_FATAL, 0, _("File daemon rejected Hello command\n")); + Dmsg0(50, _("File daemon rejected Hello command\n")); + Jmsg(jcr, M_FATAL, 0, _("File daemon on \"%s:%d\" rejected Hello command\n"), + fd->host(), fd->port()); return 0; } return 1; } -/********************************************************************* +/********************************************************************* * */ -int authenticate_user_agent(UAContext *uac) +int authenticate_user_agent(UAContext *uac) { char name[MAX_NAME_LENGTH]; - int ssl_need = BNET_SSL_NONE; - bool ok; + int tls_local_need = BNET_TLS_NONE; + int tls_remote_need = BNET_TLS_NONE; + int compatible = true; + CONRES *cons = NULL; BSOCK *ua = uac->UA_sock; + bool auth_success = false; + TLS_CONTEXT *tls_ctx = NULL; + alist *verify_list = NULL; + +// Emsg4(M_INFO, 0, _("UA Hello from %s:%s:%d is invalid. Len=%d\n"), ua->who(), +// ua->host(), ua->port(), ua->msglen); if (ua->msglen < 16 || ua->msglen >= MAX_NAME_LENGTH + 15) { - Emsg4(M_ERROR, 0, _("UA Hello from %s:%s:%d is invalid. Len=%d\n"), ua->who, - ua->host, ua->port, ua->msglen); + Emsg4(M_ERROR, 0, _("UA Hello from %s:%s:%d is invalid. Len=%d\n"), ua->who(), + ua->host(), ua->port(), ua->msglen); return 0; } if (sscanf(ua->msg, "Hello %127s calling\n", name) != 1) { - ua->msg[100] = 0; /* terminate string */ - Emsg4(M_ERROR, 0, _("UA Hello from %s:%s:%d is invalid. Got: %s\n"), ua->who, - ua->host, ua->port, ua->msg); + ua->msg[100] = 0; /* terminate string */ + Emsg4(M_ERROR, 0, _("UA Hello from %s:%s:%d is invalid. Got: %s\n"), ua->who(), + ua->host(), ua->port(), ua->msg); return 0; } -// Dmsg2(000, "Console=%s addr=%s\n", name, inet_ntoa(ua->client_addr.sin_addr)); - name[sizeof(name)-1] = 0; /* terminate name */ + + name[sizeof(name)-1] = 0; /* terminate name */ if (strcmp(name, "*UserAgent*") == 0) { /* default console */ - ok = cram_md5_auth(ua, director->password, ssl_need) && - cram_md5_get_auth(ua, director->password, ssl_need); + /* 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; + } + + auth_success = cram_md5_challenge(ua, director->password, tls_local_need, + compatible) && + cram_md5_respond(ua, director->password, &tls_remote_need, &compatible); } else { - unbash_spaces(name); - CONRES *cons = (CONRES *)GetResWithName(R_CONSOLE, name); + unbash_spaces(name); + cons = (CONRES *)GetResWithName(R_CONSOLE, name); + if (cons) { + /* TLS Requirement */ + if (cons->tls_enable) { + if (cons->tls_require) { + tls_local_need = BNET_TLS_REQUIRED; + } else { + tls_local_need = BNET_TLS_OK; + } + } + + if (cons->tls_verify_peer) { + verify_list = cons->tls_allowed_cns; + } + + auth_success = cram_md5_challenge(ua, cons->password, tls_local_need, + compatible) && + cram_md5_respond(ua, cons->password, &tls_remote_need, &compatible); + + if (auth_success) { + uac->cons = cons; /* save console resource pointer */ + } + } else { + auth_success = false; + goto auth_done; + } + } + + /* Verify that the remote peer 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 client did not advertise required TLS support.\n")); + auth_success = false; + goto auth_done; + } + + /* Verify that we are willing to meet the peer'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 client requires TLS.\n")); + auth_success = false; + goto auth_done; + } + + if (tls_local_need >= BNET_TLS_OK && tls_remote_need >= BNET_TLS_OK) { if (cons) { - ok = cram_md5_auth(ua, cons->password, ssl_need) && - cram_md5_get_auth(ua, cons->password, ssl_need); - if (ok) { - uac->cons = cons; /* save console resource pointer */ - } + tls_ctx = cons->tls_ctx; } else { - ok = false; + tls_ctx = director->tls_ctx; + } + + /* Engage TLS! Full Speed Ahead! */ + if (!bnet_tls_server(tls_ctx, ua, verify_list)) { + Emsg0(M_ERROR, 0, _("TLS negotiation failed.\n")); + auth_success = false; + goto auth_done; } } - if (!ok) { + + +/* Authorization Completed */ +auth_done: + if (!auth_success) { bnet_fsend(ua, "%s", _(Dir_sorry)); Emsg4(M_ERROR, 0, _("Unable to authenticate console \"%s\" at %s:%s:%d.\n"), - name, ua->who, ua->host, ua->port); + name, ua->who(), ua->host(), ua->port()); sleep(5); return 0; } - bnet_fsend(ua, "1000 OK: %s Version: " VERSION " (" BDATE ")\n", my_name); + bnet_fsend(ua, _("1000 OK: %s Version: %s (%s)\n"), my_name, VERSION, BDATE); return 1; }