/*
- Copyright (C) 2000-2004 Kern Sibbald and John Walker
+ Bacula(R) - 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) 2000-2016 Kern Sibbald
- 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.
+ The original author of Bacula is Kern Sibbald, with contributions
+ from many others, a complete list can be found in the file AUTHORS.
- 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 may use this file and others of this release according to the
+ license defined in the LICENSE file, which includes the Affero General
+ Public License, v3.0 ("AGPLv3") and some additional permissions and
+ terms pursuant to its AGPLv3 Section 7.
- */
+ This notice must be preserved when any source code is
+ conveyed and/or propagated.
+
+ Bacula(R) is a registered trademark of Kern Sibbald.
+*/
/*
* Originally written by Kern Sibbald for inclusion in apcupsd,
* but heavily modified for Bacula
*
- * Version $Id$
*/
#include "bacula.h"
-#undef DEV_BSIZE
#include <netinet/in.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <arpa/nameser.h>
#endif
#ifdef HAVE_RESOLV_H
-#include <resolv.h>
+//#include <resolv.h>
#endif
}
}
-/*
- 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
- In the moment it is inpossible to bind different ports.
-*/
-void
-bnet_thread_server(dlist *addrs, int max_clients, workq_t *client_wq,
- void *handle_client_request(void *bsock))
+ /*
+ 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
+ In the moment it is inpossible to bind different ports.
+ */
+void bnet_thread_server(dlist *addrs, int max_clients,
+ workq_t *client_wq, void *handle_client_request(void *bsock))
{
int newsockfd, stat;
socklen_t clilen;
- struct sockaddr cli_addr; /* client's address */
+ struct sockaddr_storage clientaddr; /* client's address */
int tlog;
int turnon = 1;
#ifdef HAVE_LIBWRAP
struct request_info request;
#endif
- IPADDR *p;
+ IPADDR *addr;
struct s_sockfd {
- dlink link; /* this MUST be the first item */
+ dlink link; /* this MUST be the first item */
int fd;
int port;
} *fd_ptr = NULL;
dlist sockfds;
char allbuf[256 * 10];
- Dmsg1(100, "Addresses %s\n", build_addresses_str(addrs, allbuf, sizeof(allbuf)));
-
- foreach_dlist(p, addrs) {
- /* Allocate on stack frame -- no need to free */
+ remove_duplicate_addresses(addrs);
+ Dmsg1(20, "Addresses %s\n", build_addresses_str(addrs, allbuf, sizeof(allbuf)));
+ /*
+ * Listen on each address provided.
+ */
+ foreach_dlist(addr, addrs) {
+ /* Allocate on stack from -- no need to free */
fd_ptr = (s_sockfd *)alloca(sizeof(s_sockfd));
- fd_ptr->port = p->get_port_net_order();
+ fd_ptr->port = addr->get_port_net_order();
/*
* Open a TCP socket
*/
- for (tlog= 60; (fd_ptr->fd=socket(p->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.strerror(),
- p->build_address_str(curbuf, sizeof(curbuf)),
- build_addresses_str(addrs, allbuf, sizeof(allbuf)));
- }
- bmicrosleep(10, 0);
+ for (tlog= 60; (fd_ptr->fd=socket(addr->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(),
+ addr->build_address_str(curbuf, sizeof(curbuf)),
+ build_addresses_str(addrs, allbuf, sizeof(allbuf)));
+ }
+ bmicrosleep(10, 0);
}
/*
* Reuse old sockets
*/
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.strerror());
+ sizeof(turnon)) < 0) {
+ berrno be;
+ Emsg1(M_WARNING, 0, _("Cannot set SO_REUSEADDR on socket: %s\n"),
+ be.bstrerror());
}
- int tmax = 30 * (60 / 5); /* wait 30 minutes max */
- /* FIXME i can go to a endless loop i get a invalid address */
- for (tlog = 0; bind(fd_ptr->fd, p->get_sockaddr(), p->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.strerror());
- }
- bmicrosleep(5, 0);
- if (--tmax <= 0) {
- Emsg2(M_ABORT, 0, _("Cannot bind port %d: ERR=%s.\n"), ntohs(fd_ptr->port),
- be.strerror());
- }
+ int tmax = 1 * (60 / 5); /* wait 1 minute max */
+ for (tlog = 0; bind(fd_ptr->fd, addr->get_sockaddr(), addr->get_sockaddr_len()) == SOCKET_ERROR; tlog -= 5) {
+ berrno be;
+ if (tlog <= 0) {
+ tlog = 1 * 60; /* Complain every 1 minute */
+ Emsg2(M_WARNING, 0, _("Cannot bind port %d: ERR=%s: Retrying ...\n"),
+ ntohs(fd_ptr->port), be.bstrerror());
+ Dmsg2(20, "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());
+ Pmsg2(000, "Aborting cannot bind port %d: ERR=%s.\n", ntohs(fd_ptr->port),
+ be.bstrerror());
+ }
+ }
+ if (listen(fd_ptr->fd, 50) < 0) { /* tell system we are ready */
+ berrno be;
+ Emsg2(M_ABORT, 0, _("Cannot bind port %d: ERR=%s.\n"), ntohs(fd_ptr->port),
+ be.bstrerror());
+ } else {
+ sockfds.append(fd_ptr);
}
- listen(fd_ptr->fd, 5); /* tell system we are ready */
- sockfds.append(fd_ptr);
+ }
+ if (sockfds.size() == 0) {
+ Emsg0(M_ABORT, 0, _("No addr/port found to listen on.\n"));
}
/* 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.strerror());
+ Emsg1(M_ABORT, 0, _("Could not init client queue: ERR=%s\n"), be.bstrerror());
}
/*
* Wait for a connection from the client process.
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;
+ 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 || errno == EAGAIN) {
- continue;
- }
- /* Error, get out */
- foreach_dlist(fd_ptr, &sockfds) {
- close(fd_ptr->fd);
- free((void *)fd_ptr);
- }
- Emsg1(M_FATAL, 0, _("Error in select: %s\n"), be.strerror());
- break;
+ berrno be; /* capture errno */
+ if (errno == EINTR) {
+ continue;
+ }
+ Emsg1(M_FATAL, 0, _("Error in select: %s\n"), be.bstrerror());
+ 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 || errno == EAGAIN));
- if (newsockfd < 0) {
- continue;
- }
+ if (FD_ISSET(fd_ptr->fd, &sockset)) {
+ /* Got a connection, now accept it. */
+ do {
+ clilen = sizeof(clientaddr);
+ newsockfd = baccept(fd_ptr->fd, (struct sockaddr *)&clientaddr, &clilen);
+ newsockfd = set_socket_errno(newsockfd);
+ } while (newsockfd == SOCKET_ERROR && (errno == EINTR || errno == EAGAIN));
+ if (newsockfd == SOCKET_ERROR) {
+ Dmsg2(20, "Accept=%d errno=%d\n", newsockfd, errno);
+ continue;
+ }
#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_SECURITY, 0,
+ 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);
+ sockaddr_to_ascii((struct sockaddr *)&clientaddr,
+ sizeof(clientaddr), buf, sizeof(buf)),
+ sockaddr_get_port((struct sockaddr *)&clientaddr));
+ close(newsockfd);
+ continue;
+ }
+ V(mutex);
#endif
- /*
- * 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.strerror());
- }
-
- /* 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, 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.strerror());
- }
- }
+ /*
+ * 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((struct sockaddr *)&clientaddr, sizeof(clientaddr), buf, sizeof(buf));
+ V(mutex);
+ BSOCK *bs;
+ bs = init_bsock(NULL, newsockfd, "client", buf, ntohs(fd_ptr->port),
+ (struct sockaddr *)&clientaddr);
+ 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());
+ }
+ }
}
}
+ /* 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 */
+ }
+
/* 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.strerror());
+ be.bstrerror());
}
}
-
-
-#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 (errno == EINTR || errno == EAGAIN) {
- continue;
- }
- if (tlog <= 0) {
- tlog = 2 * 60;
- Emsg1(M_ERROR, 0, _("Cannot open stream socket: %s\n"), strerror(errno));
- }
- bmicrosleep(60, 0);
- }
-
- /*
- * Reuse old sockets
- */
- if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (sockopt_val_t)&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) {
- berrno be;
- if (errno == EINTR || errno == EAGAIN) {
- continue;
- }
- if (tlog <= 0) {
- tlog = 2 * 60;
- Emsg2(M_WARNING, 0, _("Cannot bind port %d: ERR=%s: retrying ...\n"), port,
- be.strerror());
- }
- bmicrosleep(5, 0);
- }
- listen(sockfd, 1); /* tell system we are ready */
- return init_bsock(NULL, sockfd, _("Server socket"), _("client"), port,
- &serv_addr);
-}
-
-/*
- * 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((unsigned)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;
- }
- do {
- clilen = sizeof(cli_addr);
- newsockfd = accept(bsock->fd, (struct sockaddr *)&cli_addr, &clilen);
- } while (newsockfd < 0 && (errno == EINTR || errno = EAGAIN));
- if (newsockfd >= 0) {
- break;
- }
- }
-
-#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_SECURITY, 0, _("Connection from %s:%d refused by hosts.access\n"),
- inet_ntoa(cli_addr.sin_addr), ntohs(cli_addr.sin_port));
- close(newsockfd);
- return NULL;
- }
- V(mutex);
-#endif
-
- /*
- * Receive notification when connection dies.
- */
- if (setsockopt(newsockfd, SOL_SOCKET, SO_KEEPALIVE, (sockopt_val_t)&turnon, sizeof(turnon)) < 0) {
- Emsg1(M_WARNING, 0, _("Cannot set SO_KEEPALIVE on socket: %s\n"),
- strerror(errno));
- }
-
- /* 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) {
- pm_strcpy(&bsock->msg, caller);
- } else {
- bsock->msg[0] = 0;
- }
- 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);
- bstrncpy(buf, len, who);
- bstrncat(buf, len, ": ");
- bstrncat(buf, len, caller);
- bs = init_bsock(NULL, newsockfd, "client", buf, bsock->port, &cli_addr);
- free(buf);
- return bs; /* return new BSOCK */
- }
-}
-
-#endif
projects / bacula / bacula / blobdiff