/*
- 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) 2000-2011 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 three of the GNU Affero General Public
+ License as published by the Free Software Foundation and included
+ 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 Affero 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 Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
+ /*
* Originally written by Kern Sibbald for inclusion in apcupsd,
* but heavily modified for Bacula
*
- * Version $Id$
*/
#include "bacula.h"
#include <netinet/in.h>
#include <sys/socket.h>
+#include <stdlib.h>
#include <arpa/inet.h>
#include <netdb.h>
+#ifdef HAVE_ARPA_NAMESER_H
+#include <arpa/nameser.h>
+#endif
+#ifdef HAVE_RESOLV_H
+//#include <resolv.h>
+#endif
+
+
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
#ifdef HAVE_LIBWRAP
#include "tcpd.h"
int allow_severity = LOG_NOTICE;
int deny_severity = LOG_WARNING;
-static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
-/* Become Threaded Network Server */
-void
-bnet_thread_server(char *bind_addr, int port, int max_clients, workq_t *client_wq,
- void handle_client_request(void *bsock))
+static bool quit = false;
+
+void bnet_stop_thread_server(pthread_t tid)
+{
+ quit = true;
+ if (!pthread_equal(tid, pthread_self())) {
+ pthread_kill(tid, TIMEOUT_SIGNAL);
+ }
+}
+
+/*
+ * Become Threaded Network Server
+ *
+ * This function is able to handle multiple server ips in
+ * ipv4 and ipv6 style. The Addresse are give in a comma
+ * seperated string in bind_addr
+ *
+ * At the moment it is inpossible to bind different ports.
+ */
+void bnet_thread_server(dlist *addr_list, int max_clients, workq_t *client_wq,
+ void *handle_client_request(void *bsock))
{
- int newsockfd, sockfd, stat;
+ int newsockfd, stat;
socklen_t clilen;
- struct sockaddr_in cli_addr; /* client's address */
- struct sockaddr_in serv_addr; /* our address */
- struct in_addr bind_ip; /* address to bind to */
+ struct sockaddr cli_addr; /* client's address */
int tlog;
- fd_set ready, sockset;
int turnon = 1;
- char *caller;
#ifdef HAVE_LIBWRAP
struct request_info request;
#endif
+ IPADDR *ipaddr, *next;
+ struct s_sockfd {
+ dlink link; /* this MUST be the first item */
+ int fd;
+ int port;
+ } *fd_ptr = NULL;
+ char buf[128];
+ dlist sockfds;
- /*
- * Open a TCP socket
- */
- for (tlog=0; (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0; tlog -= 10 ) {
- if (tlog <= 0) {
- tlog = 60;
- Emsg1(M_ERROR, 0, _("Cannot open stream socket: %s. Retrying ...\n"), strerror(errno));
- }
- sleep(10);
- }
+ char allbuf[256 * 10];
/*
- * Reuse old sockets
+ * Remove any duplicate addresses.
*/
- if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &turnon, sizeof(turnon)) < 0) {
- Emsg1(M_WARNING, 0, _("Cannot set SO_REUSEADDR on socket: %s\n"), strerror(errno));
- }
-
- /*
- * Bind our local address so that the client can send to us.
- */
- bind_ip.s_addr = htonl(INADDR_ANY);
- if (bind_addr && bind_addr[0]) {
-#ifdef HAVE_INET_PTON
- if (inet_pton(AF_INET, bind_addr, &bind_ip) <= 0) {
-#else
- if (inet_aton(bind_addr, &bind_ip) <= 0) {
-#endif
- Emsg1(M_WARNING, 0, _("Invalid bind address: %s, using INADDR_ANY\n"),
- bind_addr);
- bind_ip.s_addr = htonl(INADDR_ANY);
- }
- }
- memset((char *) &serv_addr, 0, sizeof(serv_addr));
- serv_addr.sin_family = AF_INET;
- serv_addr.sin_addr.s_addr = bind_ip.s_addr;
- serv_addr.sin_port = htons(port);
-
- int tmax = 30 * (60 / 5); /* wait 30 minutes max */
- for (tlog=0; bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0; tlog -= 5 ) {
- if (tlog <= 0) {
- tlog = 2*60; /* Complain every 2 minutes */
- Emsg2(M_WARNING, 0, _("Cannot bind port %d: %s. Retrying ...\n"), port, strerror(errno));
- }
- sleep(5);
- if (--tmax <= 0) {
- Emsg2(M_ABORT, 0, _("Cannot bind port %d: %s.\n"), port, strerror(errno));
+ for (ipaddr = (IPADDR *)addr_list->first(); ipaddr;
+ ipaddr = (IPADDR *)addr_list->next(ipaddr)) {
+ for (next = (IPADDR *)addr_list->next(ipaddr); next;
+ next = (IPADDR *)addr_list->next(next)) {
+ if (ipaddr->get_sockaddr_len() == next->get_sockaddr_len() &&
+ memcmp(ipaddr->get_sockaddr(), next->get_sockaddr(),
+ ipaddr->get_sockaddr_len()) == 0) {
+ addr_list->remove(next);
+ }
}
}
- listen(sockfd, 5); /* tell system we are ready */
- FD_ZERO(&sockset);
- FD_SET(sockfd, &sockset);
+ Dmsg1(100, "Addresses %s\n", build_addresses_str(addr_list, allbuf, sizeof(allbuf)));
- /* Start work queue thread */
- if ((stat = workq_init(client_wq, max_clients, handle_client_request)) != 0) {
- Emsg1(M_ABORT, 0, _("Could not init client queue: ERR=%s\n"), strerror(stat));
- }
-
- for (;;) {
- /*
- * Wait for a connection from a client process.
+ foreach_dlist(ipaddr, addr_list) {
+ /* Allocate on stack from -- no need to free */
+ fd_ptr = (s_sockfd *)alloca(sizeof(s_sockfd));
+ fd_ptr->port = ipaddr->get_port_net_order();
+ /*
+ * Open a TCP socket
*/
- ready = sockset;
- if ((stat = select(sockfd+1, &ready, NULL, NULL, NULL)) < 0) {
- if (errno == EINTR || errno == EAGAIN) {
- errno = 0;
- continue;
- }
- close(sockfd);
- Emsg1(M_FATAL, 0, _("Error in select: %s\n"), strerror(errno));
- break;
+ for (tlog= 60; (fd_ptr->fd=socket(ipaddr->get_family(), SOCK_STREAM, 0)) < 0; tlog -= 10) {
+ if (tlog <= 0) {
+ berrno be;
+ char curbuf[256];
+ Emsg3(M_ABORT, 0, _("Cannot open stream socket. ERR=%s. Current %s All %s\n"),
+ be.bstrerror(),
+ ipaddr->build_address_str(curbuf, sizeof(curbuf)),
+ build_addresses_str(addr_list, allbuf, sizeof(allbuf)));
+ }
+ bmicrosleep(10, 0);
}
- clilen = sizeof(cli_addr);
- newsockfd = accept(sockfd, (struct sockaddr *)&cli_addr, &clilen);
-
-#ifdef HAVE_LIBWRAP
- P(mutex); /* hosts_access is not thread safe */
- request_init(&request, RQ_DAEMON, my_name, RQ_FILE, newsockfd, 0);
- fromhost(&request);
- if (!hosts_access(&request)) {
- V(mutex);
- Jmsg2(NULL, M_WARNING, 0, _("Connection from %s:%d refused by hosts.access"),
- inet_ntoa(cli_addr.sin_addr), ntohs(cli_addr.sin_port));
- close(newsockfd);
- continue;
- }
- V(mutex);
-#endif
-
/*
- * Receive notification when connection dies.
+ * Reuse old sockets
*/
- if (setsockopt(newsockfd, SOL_SOCKET, SO_KEEPALIVE, &turnon, sizeof(turnon)) < 0) {
- Emsg1(M_WARNING, 0, _("Cannot set SO_KEEPALIVE on socket: %s\n") , strerror(errno));
+ if (setsockopt(fd_ptr->fd, SOL_SOCKET, SO_REUSEADDR, (sockopt_val_t)&turnon,
+ sizeof(turnon)) < 0) {
+ berrno be;
+ Emsg1(M_WARNING, 0, _("Cannot set SO_REUSEADDR on socket: %s\n"),
+ be.bstrerror());
}
- /* see who client is. i.e. who connected to us. */
- caller = inet_ntoa(cli_addr.sin_addr);
- if (caller == NULL) {
- caller = "unknown client";
- }
-
- /* Queue client to be served */
- if ((stat = workq_add(client_wq,
- (void *)init_bsock(NULL, newsockfd, "client", caller, port))) != 0) {
- Jmsg1(NULL, M_ABORT, 0, _("Could not add job to client queue: ERR=%s\n"), strerror(stat));
+ int tmax = 30 * (60 / 5); /* wait 30 minutes max */
+ for (tlog = 0; bind(fd_ptr->fd, ipaddr->get_sockaddr(), ipaddr->get_sockaddr_len()) < 0; tlog -= 5) {
+ berrno be;
+ if (tlog <= 0) {
+ tlog = 2 * 60; /* Complain every 2 minutes */
+ Emsg2(M_WARNING, 0, _("Cannot bind port %d: ERR=%s: Retrying ...\n"),
+ ntohs(fd_ptr->port), be.bstrerror());
+ }
+ bmicrosleep(5, 0);
+ if (--tmax <= 0) {
+ Emsg2(M_ABORT, 0, _("Cannot bind port %d: ERR=%s.\n"), ntohs(fd_ptr->port),
+ be.bstrerror());
+ }
}
+ listen(fd_ptr->fd, 50); /* tell system we are ready */
+ sockfds.append(fd_ptr);
}
-}
-
-
-#ifdef REALLY_USED
-/*
- * Bind an address so that we may accept connections
- * one at a time.
- */
-BSOCK *
-bnet_bind(int port)
-{
- int sockfd;
- struct sockaddr_in serv_addr; /* our address */
- int tlog;
- int turnon = 1;
-
- /*
- * Open a TCP socket
- */
- for (tlog=0; (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0; tlog -= 10 ) {
- if (tlog <= 0) {
- tlog = 2*60;
- Emsg1(M_ERROR, 0, _("Cannot open stream socket: %s\n"), strerror(errno));
- }
- sleep(60);
+ /* Start work queue thread */
+ if ((stat = workq_init(client_wq, max_clients, handle_client_request)) != 0) {
+ berrno be;
+ be.set_errno(stat);
+ Emsg1(M_ABORT, 0, _("Could not init client queue: ERR=%s\n"), be.bstrerror());
}
-
/*
- * Reuse old sockets
- */
- if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &turnon, sizeof(turnon)) < 0) {
- Emsg1(M_WARNING, 0, _("Cannot set SO_REUSEADDR on socket: %s\n") , strerror(errno));
- }
-
- /*
- * Bind our local address so that the client can send to us.
- */
- bzero((char *) &serv_addr, sizeof(serv_addr));
- serv_addr.sin_family = AF_INET;
- serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
- serv_addr.sin_port = htons(port);
-
- for (tlog=0; bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0; tlog -= 5 ) {
- if (tlog <= 0) {
- tlog = 2*60;
- Emsg2(M_WARNING, 0, _("Cannot bind port %d: %s: retrying ...\n"), port, strerror(errno));
- }
- sleep(5);
- }
- listen(sockfd, 1); /* tell system we are ready */
- return init_bsock(NULL, sockfd, _("Server socket"), _("client"), port);
-}
-
-/*
- * Accept a single connection
- */
-BSOCK *
-bnet_accept(BSOCK *bsock, char *who)
-{
- fd_set ready, sockset;
- int newsockfd, stat, len;
- socklen_t clilen;
- struct sockaddr_in cli_addr; /* client's address */
- char *caller, *buf;
- BSOCK *bs;
- int turnon = 1;
-#ifdef HAVE_LIBWRAP
- struct request_info request;
-#endif
-
- /*
* Wait for a connection from the client process.
*/
- FD_ZERO(&sockset);
- FD_SET(bsock->fd, &sockset);
-
- for (;;) {
- /*
- * Wait for a connection from a client process.
- */
- ready = sockset;
- if ((stat = select(bsock->fd+1, &ready, NULL, NULL, NULL)) < 0) {
- if (errno == EINTR || errno == EAGAIN) {
- errno = 0;
- continue;
- }
- Emsg1(M_FATAL, 0, _("Error in select: %s\n"), strerror(errno));
- newsockfd = -1;
- break;
+ for (; !quit;) {
+ unsigned int maxfd = 0;
+ fd_set sockset;
+ FD_ZERO(&sockset);
+ foreach_dlist(fd_ptr, &sockfds) {
+ FD_SET((unsigned)fd_ptr->fd, &sockset);
+ maxfd = maxfd > (unsigned)fd_ptr->fd ? maxfd : fd_ptr->fd;
+ }
+ errno = 0;
+ if ((stat = select(maxfd + 1, &sockset, NULL, NULL, NULL)) < 0) {
+ berrno be; /* capture errno */
+ if (errno == EINTR) {
+ continue;
+ }
+ Emsg1(M_FATAL, 0, _("Error in select: %s\n"), be.bstrerror());
+ break;
}
- clilen = sizeof(cli_addr);
- newsockfd = accept(bsock->fd, (struct sockaddr *)&cli_addr, &clilen);
- break;
- }
+ foreach_dlist(fd_ptr, &sockfds) {
+ if (FD_ISSET(fd_ptr->fd, &sockset)) {
+ /* Got a connection, now accept it. */
+ do {
+ clilen = sizeof(cli_addr);
+ newsockfd = accept(fd_ptr->fd, &cli_addr, &clilen);
+ } while (newsockfd < 0 && errno == EINTR);
+ if (newsockfd < 0) {
+ continue;
+ }
#ifdef HAVE_LIBWRAP
- P(mutex);
- request_init(&request, RQ_DAEMON, my_name, RQ_FILE, newsockfd, 0);
- fromhost(&request);
- if (!hosts_access(&request)) {
- V(mutex);
- Emsg2(M_WARNING, 0, _("Connection from %s:%d refused by hosts.access"),
- inet_ntoa(cli_addr.sin_addr), ntohs(cli_addr.sin_port));
- close(newsockfd);
- return NULL;
- }
- V(mutex);
+ P(mutex); /* hosts_access is not thread safe */
+ request_init(&request, RQ_DAEMON, my_name, RQ_FILE, newsockfd, 0);
+ fromhost(&request);
+ if (!hosts_access(&request)) {
+ V(mutex);
+ Jmsg2(NULL, M_SECURITY, 0,
+ _("Connection from %s:%d refused by hosts.access\n"),
+ sockaddr_to_ascii(&cli_addr, buf, sizeof(buf)),
+ sockaddr_get_port(&cli_addr));
+ close(newsockfd);
+ continue;
+ }
+ V(mutex);
#endif
- /*
- * Receive notification when connection dies.
- */
- if (setsockopt(newsockfd, SOL_SOCKET, SO_KEEPALIVE, &turnon, sizeof(turnon)) < 0) {
- Emsg1(M_WARNING, 0, _("Cannot set SO_KEEPALIVE on socket: %s\n"), strerror(errno));
+ /*
+ * Receive notification when connection dies.
+ */
+ if (setsockopt(newsockfd, SOL_SOCKET, SO_KEEPALIVE, (sockopt_val_t)&turnon,
+ sizeof(turnon)) < 0) {
+ berrno be;
+ Emsg1(M_WARNING, 0, _("Cannot set SO_KEEPALIVE on socket: %s\n"),
+ be.bstrerror());
+ }
+
+ /* see who client is. i.e. who connected to us. */
+ P(mutex);
+ sockaddr_to_ascii(&cli_addr, buf, sizeof(buf));
+ V(mutex);
+ BSOCK *bs;
+ bs = init_bsock(NULL, newsockfd, "client", buf, ntohs(fd_ptr->port), &cli_addr);
+ if (bs == NULL) {
+ Jmsg0(NULL, M_ABORT, 0, _("Could not create client BSOCK.\n"));
+ }
+
+ /* Queue client to be served */
+ if ((stat = workq_add(client_wq, (void *)bs, NULL, 0)) != 0) {
+ berrno be;
+ be.set_errno(stat);
+ Jmsg1(NULL, M_ABORT, 0, _("Could not add job to client queue: ERR=%s\n"),
+ be.bstrerror());
+ }
+ }
+ }
}
- /* see who client is. I.e. who connected to us.
- * return it in the input message buffer.
- */
- if ((caller = inet_ntoa(cli_addr.sin_addr)) != NULL) {
- strcpy(bsock->msg, caller);
- } else {
- bsock->msg[0] = 0;
+ /* Cleanup open files and pointers to them */
+ while ((fd_ptr = (s_sockfd *)sockfds.first())) {
+ close(fd_ptr->fd);
+ sockfds.remove(fd_ptr); /* don't free() item it is on stack */
}
- bsock->msglen = strlen(bsock->msg);
- if (newsockfd < 0) {
- Emsg2(M_FATAL, 0, _("Socket accept error for %s. ERR=%s\n"), who,
- strerror(errno));
- return NULL;
- } else {
- if (caller == NULL) {
- caller = "unknown";
- }
- len = strlen(caller) + strlen(who) + 3;
- buf = (char *) malloc(len);
- strcpy(buf, who);
- strcat(buf, ": ");
- strcat(buf, caller);
- bs = init_bsock(NULL, newsockfd, "client", buf, bsock->port);
- free(buf);
- return bs; /* return new BSOCK */
+ /* Stop work queue thread */
+ if ((stat = workq_destroy(client_wq)) != 0) {
+ berrno be;
+ be.set_errno(stat);
+ Emsg1(M_FATAL, 0, _("Could not destroy client queue: ERR=%s\n"),
+ be.bstrerror());
}
-}
-
-#endif
+}
projects / bacula / bacula / blobdiff