2011-02-06 07:45:09 +03:00
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/*
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Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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2013-04-14 21:11:48 +04:00
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef AROS
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#include "aros_compat.h"
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#endif
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2011-09-01 23:35:54 +04:00
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#ifdef WIN32
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#include "win32_compat.h"
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2013-05-29 08:25:08 +04:00
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#endif
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#ifdef HAVE_ARPA_INET_H
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2011-09-01 23:35:54 +04:00
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#include <arpa/inet.h>
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2013-05-29 08:25:08 +04:00
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#endif
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2011-02-06 07:45:09 +03:00
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2013-04-14 21:11:48 +04:00
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#ifdef HAVE_POLL_H
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#include <poll.h>
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2011-06-28 10:19:21 +04:00
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#endif
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2013-04-11 07:28:40 +04:00
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2013-04-14 21:11:48 +04:00
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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2013-04-11 07:28:40 +04:00
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#endif
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2013-04-14 21:11:48 +04:00
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#ifdef HAVE_SYS_IOCTL_H
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#include <sys/ioctl.h>
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2013-04-11 07:28:40 +04:00
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#endif
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2013-05-29 04:43:47 +04:00
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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2014-08-15 05:56:39 +04:00
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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2013-12-23 16:12:28 +04:00
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#ifdef HAVE_NETINET_TCP_H
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#include <netinet/tcp.h>
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#endif
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2013-05-29 04:54:12 +04:00
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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2011-06-28 10:19:21 +04:00
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#ifdef HAVE_SYS_FILIO_H
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#include <sys/filio.h>
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#endif
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2013-05-29 04:54:12 +04:00
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2011-09-01 13:48:42 +04:00
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#ifdef HAVE_SYS_SOCKIO_H
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#include <sys/sockio.h>
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#endif
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2013-05-29 04:54:12 +04:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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2012-12-04 07:30:04 +04:00
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#include <time.h>
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2011-06-26 12:40:00 +04:00
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#include <sys/types.h>
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2012-07-04 10:53:12 +04:00
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#include "libnfs-zdr.h"
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2011-02-06 07:45:09 +03:00
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#include "libnfs.h"
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#include "libnfs-raw.h"
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#include "libnfs-private.h"
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#include "slist.h"
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2011-09-12 21:22:00 +04:00
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#ifdef WIN32
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//has to be included after stdlib!!
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#include "win32_errnowrapper.h"
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#endif
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2011-10-04 04:25:10 +04:00
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static int rpc_reconnect_requeue(struct rpc_context *rpc);
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static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s);
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2011-07-31 04:46:34 +04:00
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2011-02-06 07:45:09 +03:00
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static void set_nonblocking(int fd)
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{
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2011-09-03 02:27:02 +04:00
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int v = 0;
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2011-08-28 13:43:33 +04:00
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#if defined(WIN32)
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2011-09-03 02:27:02 +04:00
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long nonblocking=1;
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2013-04-14 19:50:38 +04:00
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v = ioctl(fd, FIONBIO, &nonblocking);
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2011-08-28 13:43:33 +04:00
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#else
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2011-02-06 07:45:09 +03:00
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v = fcntl(fd, F_GETFL, 0);
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fcntl(fd, F_SETFL, v | O_NONBLOCK);
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2011-09-01 23:35:54 +04:00
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#endif //FIXME
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2011-02-06 07:45:09 +03:00
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}
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2014-04-10 22:30:30 +04:00
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static void set_nolinger(int fd)
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{
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struct linger lng;
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lng.l_onoff = 1;
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lng.l_linger = 0;
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setsockopt(fd, SOL_SOCKET, SO_LINGER, &lng, sizeof(lng));
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}
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2013-12-23 16:12:28 +04:00
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#ifdef HAVE_NETINET_TCP_H
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2015-01-05 20:25:27 +03:00
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static int set_tcp_sockopt(int sockfd, int optname, int value)
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2013-12-23 16:12:28 +04:00
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{
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int level;
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#if defined(__FreeBSD__) || defined(__sun) || (defined(__APPLE__) && defined(__MACH__))
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struct protoent *buf;
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if ((buf = getprotobyname("tcp")) != NULL)
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level = buf->p_proto;
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else
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return -1;
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#else
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level = SOL_TCP;
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#endif
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return setsockopt(sockfd, level, optname, (char *)&value, sizeof(value));
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}
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#endif
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2011-02-06 07:45:09 +03:00
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int rpc_get_fd(struct rpc_context *rpc)
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{
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2012-11-22 05:10:05 +04:00
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assert(rpc->magic == RPC_CONTEXT_MAGIC);
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2011-02-06 07:45:09 +03:00
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return rpc->fd;
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}
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2014-01-07 14:23:46 +04:00
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static int rpc_has_queue(struct rpc_queue *q)
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{
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return q->head != NULL;
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}
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2011-02-06 07:45:09 +03:00
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int rpc_which_events(struct rpc_context *rpc)
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{
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2012-11-22 05:10:05 +04:00
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int events;
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assert(rpc->magic == RPC_CONTEXT_MAGIC);
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events = rpc->is_connected ? POLLIN : POLLOUT;
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2011-02-06 07:45:09 +03:00
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2011-06-26 12:26:34 +04:00
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if (rpc->is_udp != 0) {
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/* for udp sockets we only wait for pollin */
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return POLLIN;
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}
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2014-01-07 14:23:46 +04:00
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if (rpc_has_queue(&rpc->outqueue)) {
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2011-02-06 07:45:09 +03:00
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events |= POLLOUT;
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}
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return events;
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}
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static int rpc_write_to_socket(struct rpc_context *rpc)
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{
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2012-07-05 01:21:48 +04:00
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int32_t count;
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2014-01-07 14:23:46 +04:00
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struct rpc_pdu *pdu;
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2011-02-06 07:45:09 +03:00
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2012-11-22 05:10:05 +04:00
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assert(rpc->magic == RPC_CONTEXT_MAGIC);
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2011-02-06 07:45:09 +03:00
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if (rpc->fd == -1) {
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2011-06-19 03:38:20 +04:00
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rpc_set_error(rpc, "trying to write but not connected");
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return -1;
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2011-02-06 07:45:09 +03:00
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}
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2014-01-07 14:23:46 +04:00
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while ((pdu = rpc->outqueue.head) != NULL) {
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2011-11-27 07:49:08 +04:00
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int64_t total;
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2011-02-06 07:45:09 +03:00
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2014-01-07 14:23:46 +04:00
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total = pdu->outdata.size;
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2011-02-06 07:45:09 +03:00
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2014-01-07 14:23:46 +04:00
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count = send(rpc->fd, pdu->outdata.data + pdu->written, total - pdu->written, 0);
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2011-02-06 07:45:09 +03:00
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if (count == -1) {
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if (errno == EAGAIN || errno == EWOULDBLOCK) {
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return 0;
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}
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2011-06-19 03:38:20 +04:00
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rpc_set_error(rpc, "Error when writing to socket :%s(%d)", strerror(errno), errno);
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return -1;
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2011-02-06 07:45:09 +03:00
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}
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2014-01-07 14:23:46 +04:00
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pdu->written += count;
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if (pdu->written == total) {
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2014-02-20 18:02:08 +04:00
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unsigned int hash;
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2014-01-07 14:23:46 +04:00
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rpc->outqueue.head = pdu->next;
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if (pdu->next == NULL)
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rpc->outqueue.tail = NULL;
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2011-02-06 07:45:09 +03:00
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2014-02-20 18:02:08 +04:00
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hash = rpc_hash_xid(pdu->xid);
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rpc_enqueue(&rpc->waitpdu[hash], pdu);
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2011-02-06 07:45:09 +03:00
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}
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}
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return 0;
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}
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static int rpc_read_from_socket(struct rpc_context *rpc)
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{
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int available;
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int size;
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2011-06-19 18:56:47 +04:00
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int pdu_size;
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2012-07-05 01:21:48 +04:00
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int32_t count;
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2011-02-06 07:45:09 +03:00
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2012-11-24 20:18:54 +04:00
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assert(rpc->magic == RPC_CONTEXT_MAGIC);
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2011-02-06 07:45:09 +03:00
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if (ioctl(rpc->fd, FIONREAD, &available) != 0) {
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rpc_set_error(rpc, "Ioctl FIONREAD returned error : %d. Closing socket.", errno);
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return -1;
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}
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2011-09-01 23:35:54 +04:00
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2011-02-06 07:45:09 +03:00
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if (available == 0) {
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rpc_set_error(rpc, "Socket has been closed");
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2011-06-19 03:38:20 +04:00
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return -1;
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2011-02-06 07:45:09 +03:00
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}
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2011-06-19 18:56:47 +04:00
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2011-06-26 12:30:26 +04:00
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if (rpc->is_udp) {
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char *buf;
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socklen_t socklen = sizeof(rpc->udp_src);
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buf = malloc(available);
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if (buf == NULL) {
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rpc_set_error(rpc, "Failed to malloc buffer for recvfrom");
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return -1;
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}
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count = recvfrom(rpc->fd, buf, available, MSG_DONTWAIT, (struct sockaddr *)&rpc->udp_src, &socklen);
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if (count < 0) {
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rpc_set_error(rpc, "Failed recvfrom: %s", strerror(errno));
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free(buf);
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2014-02-18 23:22:11 +04:00
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return -1;
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2011-06-26 12:30:26 +04:00
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}
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if (rpc_process_pdu(rpc, buf, count) != 0) {
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rpc_set_error(rpc, "Invalid/garbage pdu received from server. Ignoring PDU");
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free(buf);
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return -1;
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}
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free(buf);
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return 0;
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}
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2011-06-19 18:56:47 +04:00
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/* read record marker, 4 bytes at the beginning of every pdu */
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if (rpc->inbuf == NULL) {
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rpc->insize = 4;
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rpc->inbuf = malloc(rpc->insize);
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if (rpc->inbuf == NULL) {
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rpc_set_error(rpc, "Failed to allocate buffer for record marker, errno:%d. Closing socket.", errno);
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return -1;
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}
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}
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if (rpc->inpos < 4) {
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size = 4 - rpc->inpos;
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2011-08-28 13:43:33 +04:00
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count = recv(rpc->fd, rpc->inbuf + rpc->inpos, size, 0);
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2011-06-19 18:56:47 +04:00
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if (count == -1) {
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if (errno == EINTR) {
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return 0;
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}
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rpc_set_error(rpc, "Read from socket failed, errno:%d. Closing socket.", errno);
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return -1;
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}
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available -= count;
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rpc->inpos += count;
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}
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if (available == 0) {
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return 0;
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}
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pdu_size = rpc_get_pdu_size(rpc->inbuf);
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if (rpc->insize < pdu_size) {
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unsigned char *buf;
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2014-02-18 03:42:14 +04:00
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2011-06-19 18:56:47 +04:00
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buf = malloc(pdu_size);
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if (buf == NULL) {
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rpc_set_error(rpc, "Failed to allocate buffer of %d bytes for pdu, errno:%d. Closing socket.", pdu_size, errno);
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return -1;
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}
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memcpy(buf, rpc->inbuf, rpc->insize);
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free(rpc->inbuf);
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rpc->inbuf = buf;
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rpc->insize = rpc_get_pdu_size(rpc->inbuf);
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2011-02-06 07:45:09 +03:00
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}
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2011-06-19 18:56:47 +04:00
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size = available;
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if (size > rpc->insize - rpc->inpos) {
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size = rpc->insize - rpc->inpos;
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2011-02-06 07:45:09 +03:00
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}
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2011-08-28 13:43:33 +04:00
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count = recv(rpc->fd, rpc->inbuf + rpc->inpos, size, 0);
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2011-02-06 07:45:09 +03:00
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if (count == -1) {
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if (errno == EINTR) {
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return 0;
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}
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rpc_set_error(rpc, "Read from socket failed, errno:%d. Closing socket.", errno);
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2011-06-19 03:38:20 +04:00
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return -1;
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2011-02-06 07:45:09 +03:00
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}
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2011-06-19 18:56:47 +04:00
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available -= count;
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rpc->inpos += count;
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2011-02-06 07:45:09 +03:00
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2011-06-19 18:56:47 +04:00
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if (rpc->inpos == rpc->insize) {
|
2013-10-21 00:16:45 +04:00
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char *buf = rpc->inbuf;
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rpc->inbuf = NULL;
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rpc->insize = 0;
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rpc->inpos = 0;
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if (rpc_process_pdu(rpc, buf, pdu_size) != 0) {
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2011-02-06 07:45:09 +03:00
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rpc_set_error(rpc, "Invalid/garbage pdu received from server. Closing socket");
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2011-06-19 03:38:20 +04:00
|
|
|
return -1;
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
2013-10-31 05:15:03 +04:00
|
|
|
free(buf);
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
2011-06-19 18:56:47 +04:00
|
|
|
|
2011-02-06 07:45:09 +03:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int rpc_service(struct rpc_context *rpc, int revents)
|
|
|
|
{
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-02-06 07:45:09 +03:00
|
|
|
if (revents & POLLERR) {
|
2011-09-12 21:22:00 +04:00
|
|
|
#ifdef WIN32
|
2011-09-01 23:35:54 +04:00
|
|
|
char err = 0;
|
2011-09-12 21:22:00 +04:00
|
|
|
#else
|
|
|
|
int err = 0;
|
|
|
|
#endif
|
2011-02-07 14:11:12 +03:00
|
|
|
socklen_t err_size = sizeof(err);
|
|
|
|
|
|
|
|
if (getsockopt(rpc->fd, SOL_SOCKET, SO_ERROR,
|
2011-09-03 05:25:50 +04:00
|
|
|
(char *)&err, &err_size) != 0 || err != 0) {
|
2011-02-07 14:11:12 +03:00
|
|
|
if (err == 0) {
|
|
|
|
err = errno;
|
|
|
|
}
|
|
|
|
rpc_set_error(rpc, "rpc_service: socket error "
|
|
|
|
"%s(%d).",
|
|
|
|
strerror(err), err);
|
2011-02-06 07:45:09 +03:00
|
|
|
} else {
|
2011-02-07 14:11:12 +03:00
|
|
|
rpc_set_error(rpc, "rpc_service: POLLERR, "
|
|
|
|
"Unknown socket error.");
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
2011-10-09 12:00:24 +04:00
|
|
|
if (rpc->connect_cb != NULL) {
|
|
|
|
rpc->connect_cb(rpc, RPC_STATUS_ERROR, rpc->error_string, rpc->connect_data);
|
|
|
|
}
|
2011-02-06 07:45:09 +03:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (revents & POLLHUP) {
|
|
|
|
rpc_set_error(rpc, "Socket failed with POLLHUP");
|
2011-10-09 12:00:24 +04:00
|
|
|
if (rpc->connect_cb != NULL) {
|
|
|
|
rpc->connect_cb(rpc, RPC_STATUS_ERROR, rpc->error_string, rpc->connect_data);
|
|
|
|
}
|
2011-06-19 03:38:20 +04:00
|
|
|
return -1;
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
if (rpc->is_connected == 0 && rpc->fd != -1 && revents&POLLOUT) {
|
2011-02-07 14:11:12 +03:00
|
|
|
int err = 0;
|
|
|
|
socklen_t err_size = sizeof(err);
|
|
|
|
|
|
|
|
if (getsockopt(rpc->fd, SOL_SOCKET, SO_ERROR,
|
2011-09-03 05:25:50 +04:00
|
|
|
(char *)&err, &err_size) != 0 || err != 0) {
|
2011-02-07 14:11:12 +03:00
|
|
|
if (err == 0) {
|
|
|
|
err = errno;
|
|
|
|
}
|
|
|
|
rpc_set_error(rpc, "rpc_service: socket error "
|
|
|
|
"%s(%d) while connecting.",
|
|
|
|
strerror(err), err);
|
2011-10-09 12:00:24 +04:00
|
|
|
if (rpc->connect_cb != NULL) {
|
|
|
|
rpc->connect_cb(rpc, RPC_STATUS_ERROR,
|
2011-02-07 14:11:12 +03:00
|
|
|
NULL, rpc->connect_data);
|
2011-10-09 12:00:24 +04:00
|
|
|
}
|
2011-02-07 14:11:12 +03:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2011-02-06 07:45:09 +03:00
|
|
|
rpc->is_connected = 1;
|
2011-10-09 12:00:24 +04:00
|
|
|
if (rpc->connect_cb != NULL) {
|
|
|
|
rpc->connect_cb(rpc, RPC_STATUS_SUCCESS, NULL, rpc->connect_data);
|
|
|
|
}
|
2011-02-06 07:45:09 +03:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-07-31 04:46:34 +04:00
|
|
|
if (revents & POLLIN) {
|
|
|
|
if (rpc_read_from_socket(rpc) != 0) {
|
2011-10-04 04:25:10 +04:00
|
|
|
rpc_reconnect_requeue(rpc);
|
2011-07-31 04:46:34 +04:00
|
|
|
return 0;
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-01-07 14:23:46 +04:00
|
|
|
if (revents & POLLOUT && rpc_has_queue(&rpc->outqueue)) {
|
2011-07-31 04:46:34 +04:00
|
|
|
if (rpc_write_to_socket(rpc) != 0) {
|
|
|
|
rpc_set_error(rpc, "write to socket failed");
|
2011-06-19 03:38:20 +04:00
|
|
|
return -1;
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
void rpc_set_autoreconnect(struct rpc_context *rpc)
|
2011-02-06 07:45:09 +03:00
|
|
|
{
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
rpc->auto_reconnect = 1;
|
|
|
|
}
|
2011-02-06 07:45:09 +03:00
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
void rpc_unset_autoreconnect(struct rpc_context *rpc)
|
|
|
|
{
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
rpc->auto_reconnect = 0;
|
|
|
|
}
|
2011-06-26 12:32:06 +04:00
|
|
|
|
2013-12-23 16:12:28 +04:00
|
|
|
void rpc_set_tcp_syncnt(struct rpc_context *rpc, int v)
|
|
|
|
{
|
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
|
|
|
rpc->tcp_syncnt = v;
|
|
|
|
}
|
|
|
|
|
2014-01-13 14:22:21 +04:00
|
|
|
#ifndef TCP_SYNCNT
|
|
|
|
#define TCP_SYNCNT 7
|
|
|
|
#endif
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s)
|
|
|
|
{
|
|
|
|
int socksize;
|
2011-02-06 07:45:09 +03:00
|
|
|
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
switch (s->ss_family) {
|
2011-02-06 07:45:09 +03:00
|
|
|
case AF_INET:
|
|
|
|
socksize = sizeof(struct sockaddr_in);
|
2011-08-28 13:43:33 +04:00
|
|
|
rpc->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
|
2013-12-23 16:12:28 +04:00
|
|
|
#ifdef HAVE_NETINET_TCP_H
|
|
|
|
if (rpc->tcp_syncnt != RPC_PARAM_UNDEFINED) {
|
|
|
|
set_tcp_sockopt(rpc->fd, TCP_SYNCNT, rpc->tcp_syncnt);
|
|
|
|
}
|
2014-03-16 20:12:49 +04:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
case AF_INET6:
|
|
|
|
socksize = sizeof(struct sockaddr_in6);
|
|
|
|
rpc->fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
|
|
|
|
#ifdef HAVE_NETINET_TCP_H
|
|
|
|
if (rpc->tcp_syncnt != RPC_PARAM_UNDEFINED) {
|
|
|
|
set_tcp_sockopt(rpc->fd, TCP_SYNCNT, rpc->tcp_syncnt);
|
|
|
|
}
|
2013-12-23 16:12:28 +04:00
|
|
|
#endif
|
2011-02-06 07:45:09 +03:00
|
|
|
break;
|
2011-10-04 04:25:10 +04:00
|
|
|
default:
|
|
|
|
rpc_set_error(rpc, "Can not handle AF_FAMILY:%d", s->ss_family);
|
|
|
|
return -1;
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
if (rpc->fd == -1) {
|
|
|
|
rpc_set_error(rpc, "Failed to open socket");
|
2011-06-19 03:38:20 +04:00
|
|
|
return -1;
|
2011-02-06 07:45:09 +03:00
|
|
|
}
|
|
|
|
|
2011-09-12 16:14:26 +04:00
|
|
|
/* Some systems allow you to set capabilities on an executable
|
|
|
|
* to allow the file to be executed with privilege to bind to
|
|
|
|
* privileged system ports, even if the user is not root.
|
|
|
|
*
|
|
|
|
* Opportunistically try to bind the socket to a low numbered
|
|
|
|
* system port in the hope that the user is either root or the
|
|
|
|
* executable has the CAP_NET_BIND_SERVICE.
|
|
|
|
*
|
|
|
|
* As soon as we fail the bind() with EACCES we know we will never
|
|
|
|
* be able to bind to a system port so we terminate the loop.
|
|
|
|
*
|
|
|
|
* On linux, use
|
|
|
|
* sudo setcap 'cap_net_bind_service=+ep' /path/executable
|
|
|
|
* to make the executable able to bind to a system port.
|
2012-06-14 11:21:43 +04:00
|
|
|
*
|
|
|
|
* On Windows, there is no concept of privileged ports. Thus
|
|
|
|
* binding will usually succeed.
|
2011-09-12 16:14:26 +04:00
|
|
|
*/
|
2012-06-14 11:21:43 +04:00
|
|
|
{
|
2014-03-16 20:12:49 +04:00
|
|
|
struct sockaddr_storage ss;
|
2012-06-14 11:21:43 +04:00
|
|
|
static int portOfs = 0;
|
|
|
|
const int firstPort = 512; /* >= 512 according to Sun docs */
|
|
|
|
const int portCount = IPPORT_RESERVED - firstPort;
|
2013-05-29 04:22:28 +04:00
|
|
|
int startOfs, port, rc;
|
2012-06-14 11:21:43 +04:00
|
|
|
|
2013-05-29 04:22:28 +04:00
|
|
|
if (portOfs == 0) {
|
|
|
|
portOfs = time(NULL) % 400;
|
|
|
|
}
|
|
|
|
startOfs = portOfs;
|
2012-06-14 11:21:43 +04:00
|
|
|
do {
|
|
|
|
rc = -1;
|
|
|
|
port = htons(firstPort + portOfs);
|
|
|
|
portOfs = (portOfs + 1) % portCount;
|
|
|
|
|
|
|
|
/* skip well-known ports */
|
|
|
|
if (!getservbyport(port, "tcp")) {
|
2014-03-16 20:12:49 +04:00
|
|
|
memset(&ss, 0, sizeof(ss));
|
|
|
|
|
|
|
|
switch (s->ss_family) {
|
|
|
|
case AF_INET:
|
|
|
|
((struct sockaddr_in *)&ss)->sin_port = port;
|
|
|
|
((struct sockaddr_in *)&ss)->sin_family = AF_INET;
|
|
|
|
#ifdef HAVE_SOCKADDR_LEN
|
|
|
|
((struct sockaddr_in *)&ss)->sin_len = sizeof(struct sockaddr_in);
|
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
case AF_INET6:
|
|
|
|
((struct sockaddr_in6 *)&ss)->sin6_port = port;
|
|
|
|
((struct sockaddr_in6 *)&ss)->sin6_family = AF_INET6;
|
|
|
|
#ifdef HAVE_SOCKADDR_LEN
|
2014-07-19 03:14:43 +04:00
|
|
|
((struct sockaddr_in6 *)&ss)->sin6_len = sizeof(struct sockaddr_in6);
|
2014-03-16 20:12:49 +04:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
}
|
2012-06-14 11:21:43 +04:00
|
|
|
|
2014-03-16 20:12:49 +04:00
|
|
|
rc = bind(rpc->fd, (struct sockaddr *)&ss, socksize);
|
2012-06-14 11:21:43 +04:00
|
|
|
#if !defined(WIN32)
|
|
|
|
/* we got EACCES, so don't try again */
|
|
|
|
if (rc != 0 && errno == EACCES)
|
|
|
|
break;
|
|
|
|
#endif
|
2011-09-12 16:14:26 +04:00
|
|
|
}
|
2012-06-14 11:21:43 +04:00
|
|
|
} while (rc != 0 && portOfs != startOfs);
|
2011-09-12 16:14:26 +04:00
|
|
|
}
|
|
|
|
|
2011-02-06 07:45:09 +03:00
|
|
|
set_nonblocking(rpc->fd);
|
2014-04-10 22:30:30 +04:00
|
|
|
set_nolinger(rpc->fd);
|
2011-09-12 16:14:26 +04:00
|
|
|
|
2012-06-14 11:23:25 +04:00
|
|
|
if (connect(rpc->fd, (struct sockaddr *)s, socksize) != 0 && errno != EINPROGRESS) {
|
|
|
|
rpc_set_error(rpc, "connect() to server failed. %s(%d)", strerror(errno), errno);
|
2011-06-19 03:38:20 +04:00
|
|
|
return -1;
|
2014-02-18 03:42:14 +04:00
|
|
|
}
|
2011-02-06 07:45:09 +03:00
|
|
|
|
|
|
|
return 0;
|
2014-02-18 03:42:14 +04:00
|
|
|
}
|
2011-02-06 07:45:09 +03:00
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc_cb cb, void *private_data)
|
|
|
|
{
|
2014-03-16 20:12:49 +04:00
|
|
|
struct addrinfo *ai = NULL;
|
2011-10-04 04:25:10 +04:00
|
|
|
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
if (rpc->fd != -1) {
|
|
|
|
rpc_set_error(rpc, "Trying to connect while already connected");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rpc->is_udp != 0) {
|
|
|
|
rpc_set_error(rpc, "Trying to connect on UDP socket");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
rpc->auto_reconnect = 0;
|
|
|
|
|
2014-03-16 20:12:49 +04:00
|
|
|
if (getaddrinfo(server, NULL, NULL, &ai) != 0) {
|
|
|
|
rpc_set_error(rpc, "Invalid address:%s. "
|
|
|
|
"Can not resolv into IPv4/v6 structure.", server);
|
2011-10-04 04:25:10 +04:00
|
|
|
return -1;
|
2014-03-16 20:12:49 +04:00
|
|
|
}
|
2011-10-04 04:25:10 +04:00
|
|
|
|
2014-03-16 20:12:49 +04:00
|
|
|
switch (ai->ai_family) {
|
2011-10-04 04:25:10 +04:00
|
|
|
case AF_INET:
|
2014-03-16 20:12:49 +04:00
|
|
|
((struct sockaddr_in *)&rpc->s)->sin_family = ai->ai_family;
|
|
|
|
((struct sockaddr_in *)&rpc->s)->sin_port = htons(port);
|
2014-06-08 16:20:12 +04:00
|
|
|
((struct sockaddr_in *)&rpc->s)->sin_addr = ((struct sockaddr_in *)(ai->ai_addr))->sin_addr;
|
2011-10-04 04:25:10 +04:00
|
|
|
#ifdef HAVE_SOCKADDR_LEN
|
2014-03-16 20:12:49 +04:00
|
|
|
((struct sockaddr_in *)&rpc->s)->sin_len = sizeof(struct sockaddr_in);
|
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
case AF_INET6:
|
|
|
|
((struct sockaddr_in6 *)&rpc->s)->sin6_family = ai->ai_family;
|
|
|
|
((struct sockaddr_in6 *)&rpc->s)->sin6_port = htons(port);
|
2014-06-08 16:20:12 +04:00
|
|
|
((struct sockaddr_in6 *)&rpc->s)->sin6_addr = ((struct sockaddr_in6 *)(ai->ai_addr))->sin6_addr;
|
2014-03-16 20:12:49 +04:00
|
|
|
#ifdef HAVE_SOCKADDR_LEN
|
|
|
|
((struct sockaddr_in6 *)&rpc->s)->sin6_len = sizeof(struct sockaddr_in6);
|
2011-10-04 04:25:10 +04:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
rpc->connect_cb = cb;
|
|
|
|
rpc->connect_data = private_data;
|
|
|
|
|
2014-03-16 20:12:49 +04:00
|
|
|
freeaddrinfo(ai);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
if (rpc_connect_sockaddr_async(rpc, &rpc->s) != 0) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2014-02-18 03:42:14 +04:00
|
|
|
}
|
2011-10-04 04:25:10 +04:00
|
|
|
|
2011-02-06 07:45:09 +03:00
|
|
|
int rpc_disconnect(struct rpc_context *rpc, char *error)
|
|
|
|
{
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
rpc_unset_autoreconnect(rpc);
|
|
|
|
|
2011-02-06 07:45:09 +03:00
|
|
|
if (rpc->fd != -1) {
|
|
|
|
close(rpc->fd);
|
|
|
|
}
|
|
|
|
rpc->fd = -1;
|
|
|
|
|
|
|
|
rpc->is_connected = 0;
|
|
|
|
|
|
|
|
rpc_error_all_pdus(rpc, error);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2011-06-26 12:40:00 +04:00
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
static void reconnect_cb(struct rpc_context *rpc, int status, void *data _U_, void *private_data)
|
|
|
|
{
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-10-04 04:25:10 +04:00
|
|
|
if (status != RPC_STATUS_SUCCESS) {
|
|
|
|
rpc_error_all_pdus(rpc, "RPC ERROR: Failed to reconnect async");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
rpc->is_connected = 1;
|
2011-10-09 12:00:24 +04:00
|
|
|
rpc->connect_cb = NULL;
|
2011-10-04 04:25:10 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* disconnect but do not error all PDUs, just move pdus in-flight back to the outqueue and reconnect */
|
|
|
|
static int rpc_reconnect_requeue(struct rpc_context *rpc)
|
2011-07-31 04:46:34 +04:00
|
|
|
{
|
|
|
|
struct rpc_pdu *pdu;
|
2014-02-20 18:02:08 +04:00
|
|
|
unsigned int i;
|
2011-07-31 04:46:34 +04:00
|
|
|
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-07-31 04:46:34 +04:00
|
|
|
if (rpc->fd != -1) {
|
|
|
|
close(rpc->fd);
|
|
|
|
}
|
|
|
|
rpc->fd = -1;
|
|
|
|
|
|
|
|
rpc->is_connected = 0;
|
|
|
|
|
|
|
|
/* socket is closed so we will not get any replies to any commands
|
|
|
|
* in flight. Move them all over from the waitpdu queue back to the out queue
|
|
|
|
*/
|
2014-02-20 18:02:08 +04:00
|
|
|
for (i = 0; i < HASHES; i++) {
|
|
|
|
struct rpc_queue *q = &rpc->waitpdu[i];
|
|
|
|
|
|
|
|
for (pdu=q->head; pdu; pdu=pdu->next) {
|
|
|
|
rpc_return_to_queue(&rpc->outqueue, pdu);
|
|
|
|
/* we have to re-send the whole pdu again */
|
|
|
|
pdu->written = 0;
|
|
|
|
}
|
|
|
|
rpc_reset_queue(q);
|
2011-10-04 04:25:10 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
if (rpc->auto_reconnect != 0) {
|
|
|
|
rpc->connect_cb = reconnect_cb;
|
|
|
|
|
|
|
|
if (rpc_connect_sockaddr_async(rpc, &rpc->s) != 0) {
|
|
|
|
rpc_error_all_pdus(rpc, "RPC ERROR: Failed to reconnect async");
|
|
|
|
return -1;
|
|
|
|
}
|
2011-07-31 04:46:34 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-06-26 12:40:00 +04:00
|
|
|
|
|
|
|
int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port)
|
|
|
|
{
|
|
|
|
struct addrinfo *ai = NULL;
|
|
|
|
char service[6];
|
|
|
|
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-06-26 12:40:00 +04:00
|
|
|
if (rpc->is_udp == 0) {
|
|
|
|
rpc_set_error(rpc, "Cant not bind UDP. Not UDP context");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2011-08-28 13:43:33 +04:00
|
|
|
sprintf(service, "%d", port);
|
2011-06-26 12:40:00 +04:00
|
|
|
if (getaddrinfo(addr, service, NULL, &ai) != 0) {
|
|
|
|
rpc_set_error(rpc, "Invalid address:%s. "
|
2014-02-18 03:42:14 +04:00
|
|
|
"Can not resolv into IPv4/v6 structure.", addr);
|
2011-06-26 12:40:00 +04:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch(ai->ai_family) {
|
|
|
|
case AF_INET:
|
|
|
|
rpc->fd = socket(ai->ai_family, SOCK_DGRAM, 0);
|
|
|
|
if (rpc->fd == -1) {
|
2014-02-18 03:42:14 +04:00
|
|
|
rpc_set_error(rpc, "Failed to create UDP socket: %s", strerror(errno));
|
2011-06-26 12:40:00 +04:00
|
|
|
freeaddrinfo(ai);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bind(rpc->fd, (struct sockaddr *)ai->ai_addr, sizeof(struct sockaddr_in)) != 0) {
|
2014-02-18 03:42:14 +04:00
|
|
|
rpc_set_error(rpc, "Failed to bind to UDP socket: %s",strerror(errno));
|
2011-06-26 12:40:00 +04:00
|
|
|
freeaddrinfo(ai);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
rpc_set_error(rpc, "Can not handle UPD sockets of family %d yet", ai->ai_family);
|
|
|
|
freeaddrinfo(ai);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
freeaddrinfo(ai);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-06-26 12:42:53 +04:00
|
|
|
int rpc_set_udp_destination(struct rpc_context *rpc, char *addr, int port, int is_broadcast)
|
|
|
|
{
|
|
|
|
struct addrinfo *ai = NULL;
|
|
|
|
char service[6];
|
|
|
|
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-06-26 12:42:53 +04:00
|
|
|
if (rpc->is_udp == 0) {
|
|
|
|
rpc_set_error(rpc, "Can not set destination sockaddr. Not UDP context");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2011-08-28 13:43:33 +04:00
|
|
|
sprintf(service, "%d", port);
|
2011-06-26 12:42:53 +04:00
|
|
|
if (getaddrinfo(addr, service, NULL, &ai) != 0) {
|
|
|
|
rpc_set_error(rpc, "Invalid address:%s. "
|
2014-02-18 03:42:14 +04:00
|
|
|
"Can not resolv into IPv4/v6 structure.", addr);
|
2011-06-26 12:42:53 +04:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rpc->udp_dest) {
|
|
|
|
free(rpc->udp_dest);
|
|
|
|
rpc->udp_dest = NULL;
|
|
|
|
}
|
|
|
|
rpc->udp_dest = malloc(ai->ai_addrlen);
|
|
|
|
if (rpc->udp_dest == NULL) {
|
|
|
|
rpc_set_error(rpc, "Out of memory. Failed to allocate sockaddr structure");
|
2012-11-16 06:38:54 +04:00
|
|
|
freeaddrinfo(ai);
|
2011-06-26 12:42:53 +04:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
memcpy(rpc->udp_dest, ai->ai_addr, ai->ai_addrlen);
|
|
|
|
freeaddrinfo(ai);
|
|
|
|
|
|
|
|
rpc->is_broadcast = is_broadcast;
|
2011-09-03 05:25:50 +04:00
|
|
|
setsockopt(rpc->fd, SOL_SOCKET, SO_BROADCAST, (char *)&is_broadcast, sizeof(is_broadcast));
|
2011-06-26 12:42:53 +04:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2011-06-26 12:45:38 +04:00
|
|
|
|
|
|
|
struct sockaddr *rpc_get_recv_sockaddr(struct rpc_context *rpc)
|
|
|
|
{
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2011-06-26 12:45:38 +04:00
|
|
|
return (struct sockaddr *)&rpc->udp_src;
|
|
|
|
}
|
2011-09-11 15:32:48 +04:00
|
|
|
|
|
|
|
int rpc_queue_length(struct rpc_context *rpc)
|
|
|
|
{
|
|
|
|
int i=0;
|
|
|
|
struct rpc_pdu *pdu;
|
2014-02-20 18:02:08 +04:00
|
|
|
unsigned int n;
|
2011-09-11 15:32:48 +04:00
|
|
|
|
2012-11-22 05:10:05 +04:00
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
2014-01-07 14:23:46 +04:00
|
|
|
for(pdu = rpc->outqueue.head; pdu; pdu = pdu->next) {
|
2011-09-11 15:32:48 +04:00
|
|
|
i++;
|
|
|
|
}
|
2014-02-20 18:02:08 +04:00
|
|
|
|
|
|
|
for (n = 0; n < HASHES; n++) {
|
|
|
|
struct rpc_queue *q = &rpc->waitpdu[n];
|
|
|
|
|
|
|
|
for(pdu = q->head; pdu; pdu = pdu->next)
|
|
|
|
i++;
|
2011-09-11 15:32:48 +04:00
|
|
|
}
|
|
|
|
return i;
|
|
|
|
}
|
2014-02-02 20:45:21 +04:00
|
|
|
|
|
|
|
void rpc_set_fd(struct rpc_context *rpc, int fd)
|
|
|
|
{
|
|
|
|
assert(rpc->magic == RPC_CONTEXT_MAGIC);
|
|
|
|
|
|
|
|
rpc->fd = fd;
|
|
|
|
}
|