/*
* Authenticate Director
*/
bool BSOCK::authenticate_with_director(JCR *jcr,
const char *name, s_password &password, tls_t &tls,
char *response, int response_len)
{
char bashed_name[MAX_NAME_LENGTH];
BSOCK *dir = this; /* for readability */
response[0] = 0;
/*
* Send my name to the Director then do authentication
*/
bstrncpy(bashed_name, name, sizeof(bashed_name));
bash_spaces(bashed_name);
/*
* Timeout Hello after 5 mins
*/
dir->start_timer(60 * 5);
dir->fsend(hello, bashed_name);
if (!authenticate_outbound_connection(jcr, "Director", name, password, tls)) {
goto bail_out;
}
Dmsg1(6, ">dird: %s", dir->msg);
if (dir->recv() <= 0) {
dir->stop_timer();
bsnprintf(response, response_len, _("Bad response to Hello command: ERR=%s\n"
"The Director at \"%s:%d\" is probably not running.\n"),
dir->bstrerror(), dir->host(), dir->port());
return false;
}
dir->stop_timer();
Dmsg1(10, "<dird: %s", dir->msg);
if (!bstrncmp(dir->msg, OKhello, sizeof(OKhello) - 1)) {
bsnprintf(response, response_len, _("Director at \"%s:%d\" rejected Hello command\n"),
dir->host(), dir->port());
return false;
} else {
bsnprintf(response, response_len, "%s", dir->msg);
}
return true;
bail_out:
dir->stop_timer();
bsnprintf(response, response_len, _("Authorization problem with Director at \"%s:%d\"\n"
"Most likely the passwords do not agree.\n"
"If you are using TLS, there may have been a certificate "
"validation error during the TLS handshake.\n"
"Please see %s for help.\n"),
dir->host(), dir->port(), MANUAL_AUTH_URL);
return false;
}
/*
* Authenticate Storage daemon connection
*/
bool authenticate_storage_daemon(JCR *jcr, STORERES *store)
{
BSOCK *sd = jcr->store_bsock;
char dirname[MAX_NAME_LENGTH];
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 1 min */
btimer_t *tid = start_bsock_timer(sd, AUTH_TIMEOUT);
if (!sd->fsend(hello, dirname)) {
stop_bsock_timer(tid);
Dmsg1(dbglvl, _("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;
}
/* TLS Requirement */
if (store->tls_enable) {
if (store->tls_require) {
tls_local_need = BNET_TLS_REQUIRED;
} else {
tls_local_need = BNET_TLS_OK;
}
}
if (store->tls_authenticate) {
tls_local_need = BNET_TLS_REQUIRED;
}
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(dbglvl, "cram_challenge failed for %s\n", sd->who());
}
} else {
Dmsg1(dbglvl, "cram_respond failed for %s\n", sd->who());
}
if (!auth_success) {
stop_bsock_timer(tid);
Dmsg0(dbglvl, _("Director and Storage daemon passwords or names not the same.\n"));
Jmsg2(jcr, M_FATAL, 0,
_("Director unable to authenticate with Storage daemon at \"%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 " MANUAL_AUTH_URL " 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);
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 at \"%s:%d\"\n"),
sd->host(), sd->port());
return 0;
}
if (store->tls_authenticate) { /* authentication only? */
sd->free_tls(); /* yes, stop tls */
}
}
Dmsg1(116, ">stored: %s", sd->msg);
if (sd->recv() <= 0) {
stop_bsock_timer(tid);
Jmsg3(jcr, M_FATAL, 0, _("bdird<stored: \"%s:%s\" bad response to Hello command: ERR=%s\n"),
sd->who(), sd->host(), sd->bstrerror());
return 0;
}
Dmsg1(110, "<stored: %s", sd->msg);
stop_bsock_timer(tid);
if (!bstrncmp(sd->msg, OKhello, sizeof(OKhello))) {
Dmsg0(dbglvl, _("Storage daemon rejected Hello command\n"));
Jmsg2(jcr, M_FATAL, 0, _("Storage daemon at \"%s:%d\" rejected Hello command\n"),
sd->host(), sd->port());
return 0;
}
return 1;
}
int authenticate_user_agent(UAContext *uac)
{
char name[MAX_NAME_LENGTH];
int tls_local_need = BNET_TLS_NONE;
int tls_remote_need = BNET_TLS_NONE;
bool tls_authenticate;
int compatible = true;
CONRES *cons = NULL;
BSOCK *ua = uac->UA_sock;
bool auth_success = false;
TLS_CONTEXT *tls_ctx = NULL;
alist *verify_list = NULL;
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);
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);
return 0;
}
name[sizeof(name)-1] = 0; /* terminate name */
if (bstrcmp(name, "*UserAgent*")) { /* default console */
/* TLS Requirement */
if (director->tls_enable) {
if (director->tls_require) {
tls_local_need = BNET_TLS_REQUIRED;
} else {
tls_local_need = BNET_TLS_OK;
}
}
tls_authenticate = director->tls_authenticate;
if (tls_authenticate) {
tls_local_need = BNET_TLS_REQUIRED;
}
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);
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;
}
}
tls_authenticate = cons->tls_authenticate;
if (tls_authenticate) {
tls_local_need = BNET_TLS_REQUIRED;
}
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) {
tls_ctx = cons->tls_ctx;
} else {
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 (tls_authenticate) { /* authentication only? */
ua->free_tls(); /* stop tls */
}
}
/* Authorization Completed */
auth_done:
if (!auth_success) {
ua->fsend("%s", _(Dir_sorry));
Emsg4(M_ERROR, 0, _("Unable to authenticate console \"%s\" at %s:%s:%d.\n"),
name, ua->who(), ua->host(), ua->port());
sleep(5);
return 0;
}
ua->fsend(_("1000 OK: %s Version: %s (%s)\n"), my_name, VERSION, BDATE);
return 1;
}
/*
* Authenticate File daemon connection
*/
int authenticate_file_daemon(JCR *jcr)
{
BSOCK *fd = jcr->file_bsock;
CLIENTRES *client = jcr->res.client;
char dirname[MAX_NAME_LENGTH];
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->name(), sizeof(dirname));
bash_spaces(dirname);
/* Timeout Hello after 1 min */
btimer_t *tid = start_bsock_timer(fd, AUTH_TIMEOUT);
if (!fd->fsend(hello, dirname)) {
stop_bsock_timer(tid);
Jmsg(jcr, M_FATAL, 0, _("Error sending Hello to File daemon at \"%s:%d\". ERR=%s\n"),
fd->host(), fd->port(), fd->bstrerror());
return 0;
}
Dmsg1(dbglvl, "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;
}
}
if (client->tls_authenticate) {
tls_local_need = BNET_TLS_REQUIRED;
}
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(dbglvl, "cram_auth failed for %s\n", fd->who());
}
} else {
Dmsg1(dbglvl, "cram_get_auth failed for %s\n", fd->who());
}
if (!auth_success) {
stop_bsock_timer(tid);
Dmsg0(dbglvl, _("Director and File daemon passwords or names not the same.\n"));
Jmsg(jcr, M_FATAL, 0,
_("Unable to authenticate with File daemon at \"%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 " MANUAL_AUTH_URL " 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, _("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 at \"%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 at \"%s:%d\".\n"),
fd->host(), fd->port());
return 0;
}
if (client->tls_authenticate) { /* tls authentication only? */
fd->free_tls(); /* yes, shutdown tls */
}
}
Dmsg1(116, ">filed: %s", fd->msg);
if (fd->recv() <= 0) {
stop_bsock_timer(tid);
Dmsg1(dbglvl, _("Bad response from File daemon to Hello command: ERR=%s\n"),
bnet_strerror(fd));
Jmsg(jcr, M_FATAL, 0, _("Bad response from File daemon at \"%s:%d\" to Hello command: ERR=%s\n"),
fd->host(), fd->port(), fd->bstrerror());
return 0;
}
Dmsg1(110, "<filed: %s", fd->msg);
stop_bsock_timer(tid);
jcr->FDVersion = 0;
if (!bstrncmp(fd->msg, FDOKhello, sizeof(FDOKhello)) &&
sscanf(fd->msg, FDOKnewHello, &jcr->FDVersion) != 1) {
Dmsg0(dbglvl, _("File daemon rejected Hello command\n"));
Jmsg(jcr, M_FATAL, 0, _("File daemon at \"%s:%d\" rejected Hello command\n"),
fd->host(), fd->port());
return 0;
}
return 1;
}
/*
* Authenticate Director
*/
bool DirComm::authenticate_director(JCR *jcr, DIRRES *director, CONRES *cons,
char *errmsg, int errmsg_len)
{
BSOCK *dir = jcr->dir_bsock;
int tls_local_need = BNET_TLS_NONE;
int tls_remote_need = BNET_TLS_NONE;
bool tls_authenticate;
int compatible = true;
char bashed_name[MAX_NAME_LENGTH];
char *password;
TLS_CONTEXT *tls_ctx = NULL;
errmsg[0] = 0;
/*
* Send my name to the Director then do authentication
*/
if (cons) {
bstrncpy(bashed_name, cons->hdr.name, sizeof(bashed_name));
bash_spaces(bashed_name);
password = cons->password;
/* TLS Requirement */
if (cons->tls_enable) {
if (cons->tls_require) {
tls_local_need = BNET_TLS_REQUIRED;
} else {
tls_local_need = BNET_TLS_OK;
}
}
tls_authenticate = cons->tls_authenticate;
tls_ctx = cons->tls_ctx;
} else {
bstrncpy(bashed_name, "*UserAgent*", sizeof(bashed_name));
password = director->password;
/* TLS Requirement */
if (director->tls_enable) {
if (director->tls_require) {
tls_local_need = BNET_TLS_REQUIRED;
} else {
tls_local_need = BNET_TLS_OK;
}
}
tls_authenticate = director->tls_authenticate;
tls_ctx = director->tls_ctx;
}
if (tls_authenticate) {
tls_local_need = BNET_TLS_REQUIRED;
}
/* Timeout Hello after 15 secs */
dir->start_timer(15);
dir->fsend(hello, bashed_name);
/* respond to Dir challenge */
if (!cram_md5_respond(dir, password, &tls_remote_need, &compatible) ||
/* Now challenge dir */
!cram_md5_challenge(dir, password, tls_local_need, compatible)) {
bsnprintf(errmsg, errmsg_len, _("Director authorization problem at \"%s:%d\"\n"),
dir->host(), dir->port());
goto bail_out;
}
/* 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) {
bsnprintf(errmsg, errmsg_len, _("Authorization problem:"
" Remote server at \"%s:%d\" did not advertise required TLS support.\n"),
dir->host(), dir->port());
goto bail_out;
}
/* 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) {
bsnprintf(errmsg, errmsg_len, _("Authorization problem with Director at \"%s:%d\":"
" Remote server requires TLS.\n"),
dir->host(), dir->port());
goto bail_out;
}
/* 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(tls_ctx, dir, NULL)) {
bsnprintf(errmsg, errmsg_len, _("TLS negotiation failed with Director at \"%s:%d\"\n"),
dir->host(), dir->port());
goto bail_out;
}
if (tls_authenticate) { /* authenticate only? */
dir->free_tls(); /* Yes, shutdown tls */
}
}
Dmsg1(6, ">dird: %s", dir->msg);
if (dir->recv() <= 0) {
dir->stop_timer();
bsnprintf(errmsg, errmsg_len, _("Bad response to Hello command: ERR=%s\n"
"The Director at \"%s:%d\" is probably not running.\n"),
dir->bstrerror(), dir->host(), dir->port());
return false;
}
dir->stop_timer();
Dmsg1(10, "<dird: %s", dir->msg);
if (strncmp(dir->msg, OKhello, sizeof(OKhello)-1) != 0) {
bsnprintf(errmsg, errmsg_len, _("Director at \"%s:%d\" rejected Hello command\n"),
dir->host(), dir->port());
return false;
} else {
if (m_conn == 0) {
bsnprintf(errmsg, errmsg_len, "%s", dir->msg);
}
}
return true;
bail_out:
dir->stop_timer();
bsnprintf(errmsg, errmsg_len, _("Authorization problem with Director at \"%s:%d\"\n"
"Most likely the passwords do not agree.\n"
"If you are using TLS, there may have been a certificate validation error during the TLS handshake.\n"
"Please see " MANUAL_AUTH_URL " for help.\n"),
dir->host(), dir->port());
return false;
}
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, "cram-get-auth failed with %s\n", fd->who());
}
} else {
Dmsg1(dbglvl, "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 http://www.bacula.org/en/rel-manual/Bacula_Freque_Asked_Questi.html#SECTION003760000000000000000 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;
}
/* 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 (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 http://www.bacula.org/en/rel-manual/Bacula_Freque_Asked_Questi.html#SECTION003760000000000000000 for help.\n"),
fd->who());
}
jcr->authenticated = auth_success;
return auth_success;
}
