dropbear: svr-main.c annotate

annotate svr-main.c @ 63:dcc43965928f

- A nice cleaner structure for tcp (acceptor) forwarding. - still a checkpoint-ish commit - sorted out listening on localhost only

author	Matt Johnston <matt@ucc.asn.au>
date	Wed, 11 Aug 2004 17:26:47 +0000
parents	20563735e8b5
children	ac96bc733e71

rev	line source
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * Dropbear - a SSH2 server
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * Copyright (c) 2002,2003 Matt Johnston
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 * All rights reserved.
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 *
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Permission is hereby granted, free of charge, to any person obtaining a copy
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * of this software and associated documentation files (the "Software"), to deal
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * in the Software without restriction, including without limitation the rights
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * copies of the Software, and to permit persons to whom the Software is
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * furnished to do so, subject to the following conditions:
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 *
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * The above copyright notice and this permission notice shall be included in
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 * all copies or substantial portions of the Software.
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 *
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * SOFTWARE. */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 #include "includes.h"
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 #include "dbutil.h"
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #include "session.h"
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #include "buffer.h"
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "signkey.h"
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 #include "runopts.h"
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	32 static int listensockets(int sock, int sockcount, int maxfd);
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 static void sigchld_handler(int dummy);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 static void sigsegv_handler(int);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 static void sigintterm_handler(int fish);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 static int childpipes[MAX_UNAUTH_CLIENTS];
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 #if defined(DBMULTI_dropbear) \|\| !defined(DROPBEAR_MULTI)
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 #if defined(DBMULTI_dropbear) && defined(DROPBEAR_MULTI)
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 int dropbear_main(int argc, char ** argv)
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 #else
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 int main(int argc, char ** argv)
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 #endif
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 fd_set fds;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 struct timeval seltimeout;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 unsigned int i, j;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 int val;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 int maxsock = -1;
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	52 struct sockaddr_storage remoteaddr;
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 int remoteaddrlen;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 int listensocks[MAX_LISTEN_ADDR];
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	55 int listensockcount = 0;
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 FILE * pidfile;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 int childsock;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 pid_t childpid;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 int childpipe[2];
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 struct sigaction sa_chld;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 _dropbear_exit = svr_dropbear_exit;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 _dropbear_log = svr_dropbear_log;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 /* get commandline options */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 svr_getopts(argc, argv);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 /* fork */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 if (svr_opts.forkbg) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 int closefds = 0;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 #ifndef DEBUG_TRACE
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 if (!svr_opts.usingsyslog) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 closefds = 1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 #endif
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 if (daemon(0, closefds) < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 dropbear_exit("Failed to create background process: %s",
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 strerror(errno));
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 #ifndef DISABLE_SYSLOG
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 if (svr_opts.usingsyslog) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 startsyslog();
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 #endif
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 /* should be done after syslog is working */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 if (svr_opts.forkbg) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 dropbear_log(LOG_INFO, "Running in background");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 } else {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 dropbear_log(LOG_INFO, "Not forking");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 /* create a PID file so that we can be killed easily */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 pidfile = fopen(DROPBEAR_PIDFILE, "w");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 if (pidfile) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 fprintf(pidfile, "%d\n", getpid());
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 fclose(pidfile);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 /* set up cleanup handler */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 if (signal(SIGINT, sigintterm_handler) == SIG_ERR \|\|
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 #ifndef DEBUG_VALGRIND
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 signal(SIGTERM, sigintterm_handler) == SIG_ERR \|\|
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 #endif
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 dropbear_exit("signal() error");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 /* catch and reap zombie children */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 sa_chld.sa_handler = sigchld_handler;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 sa_chld.sa_flags = SA_NOCLDSTOP;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 dropbear_exit("signal() error");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 if (signal(SIGSEGV, sigsegv_handler) == SIG_ERR) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 dropbear_exit("signal() error");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 /* sockets to identify pre-authenticated clients */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 for (i = 0; i < MAX_UNAUTH_CLIENTS; i++) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 childpipes[i] = -1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 /* Set up the listening sockets */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 /* XXX XXX ports */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	130 listensockcount = listensockets(listensocks, MAX_LISTEN_ADDR, &maxsock);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	131 if (listensockcount < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	132 dropbear_exit("No listening ports available.");
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	133 }
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 /* incoming connection select loop */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 for(;;) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 FD_ZERO(&fds);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 seltimeout.tv_sec = 60;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 seltimeout.tv_usec = 0;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 /* listening sockets */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	144 for (i = 0; i < (unsigned int)listensockcount; i++) {
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 FD_SET(listensocks[i], &fds);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 /* pre-authentication clients */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 for (i = 0; i < MAX_UNAUTH_CLIENTS; i++) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 if (childpipes[i] >= 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 FD_SET(childpipes[i], &fds);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 maxsock = MAX(maxsock, childpipes[i]);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 val = select(maxsock+1, &fds, NULL, NULL, &seltimeout);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 if (exitflag) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 unlink(DROPBEAR_PIDFILE);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 dropbear_exit("Terminated by signal");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 if (val == 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 /* timeout reached */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168 if (val < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 if (errno == EINTR) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 dropbear_exit("Listening socket error");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 /* close fds which have been authed or closed - auth.c handles
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 * closing the auth sockets on success */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 for (i = 0; i < MAX_UNAUTH_CLIENTS; i++) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 if (childpipes[i] >= 0 && FD_ISSET(childpipes[i], &fds)) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 close(childpipes[i]);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180 childpipes[i] = -1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 /* handle each socket which has something to say */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	185 for (i = 0; i < (unsigned int)listensockcount; i++) {
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 if (!FD_ISSET(listensocks[i], &fds))
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 /* child connection XXX - ip6 stuff here */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	190 remoteaddrlen = sizeof(remoteaddr);
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	191 childsock = accept(listensocks[i],
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	192 (struct sockaddr*)&remoteaddr, &remoteaddrlen);
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 if (childsock < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 /* accept failed */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 /* check for max number of connections not authorised */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 for (j = 0; j < MAX_UNAUTH_CLIENTS; j++) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 if (childpipes[j] < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 break;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 if (j == MAX_UNAUTH_CLIENTS) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 /* no free connections */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 /* TODO - possibly log, though this would be an easy way
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 * to fill logs/disk */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 close(childsock);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 if (pipe(childpipe) < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 TRACE(("error creating child pipe"));
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 close(childsock);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 if ((childpid = fork()) == 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 /* child */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 char * addrstring = NULL;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 #ifdef DEBUG_FORKGPROF
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 extern void _start(void), etext(void);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 monstartup((u_long)&_start, (u_long)&etext);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 #endif /* DEBUG_FORKGPROF */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	229 addrstring = getaddrstring(&remoteaddr, 1);
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 dropbear_log(LOG_INFO, "Child connection from %s", addrstring);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 m_free(addrstring);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 if (setsid() < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 dropbear_exit("setsid: %s", strerror(errno));
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 /* make sure we close sockets */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	238 for (i = 0; i < (unsigned int)listensockcount; i++) {
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 if (m_close(listensocks[i]) == DROPBEAR_FAILURE) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 dropbear_exit("Couldn't close socket");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 if (m_close(childpipe[0]) == DROPBEAR_FAILURE) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245 dropbear_exit("Couldn't close socket");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248 /* start the session */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249 svr_session(childsock, childpipe[1],
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250 getaddrhostname(&remoteaddr));
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 /* don't return */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252 assert(0);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 /* parent */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 childpipes[j] = childpipe[0];
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 if (m_close(childpipe[1]) == DROPBEAR_FAILURE
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 \|\| m_close(childsock) == DROPBEAR_FAILURE) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259 dropbear_exit("Couldn't close socket");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262 } /* for(;;) loop */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 /* don't reach here */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 return -1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 #endif
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 /* catch + reap zombie children */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 static void sigchld_handler(int fish) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 struct sigaction sa_chld;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 while(waitpid(-1, NULL, WNOHANG) > 0);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 sa_chld.sa_handler = sigchld_handler;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 sa_chld.sa_flags = SA_NOCLDSTOP;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 dropbear_exit("signal() error");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282 /* catch any segvs */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 static void sigsegv_handler(int fish) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 fprintf(stderr, "Aiee, segfault! You should probably report "
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 "this as a bug to the developer\n");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 exit(EXIT_FAILURE);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 /* catch ctrl-c or sigterm */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 static void sigintterm_handler(int fish) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 exitflag = 1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 /* Set up listening sockets for all the requested ports */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	296 static int listensockets(int sock, int sockcount, int maxfd) {
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 unsigned int i;
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	299 char portstring[NI_MAXSERV];
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	300 char* errstring = NULL;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	301 unsigned int sockpos = 0;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	302 int nsock;
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304 for (i = 0; i < svr_opts.portcount; i++) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	306 snprintf(portstring, sizeof(portstring), "%d", svr_opts.ports[i]);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	307 nsock = dropbear_listen(NULL, portstring, &sock[sockpos],
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	308 sockcount - sockpos,
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	309 &errstring, maxfd);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	310
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	311 if (nsock < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	312 dropbear_log(LOG_WARNING, "Failed listening on port %s: %s",
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	313 portstring, errstring);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	314 m_free(errstring);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	315 continue;
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	318 sockpos += nsock;
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 }
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 30 diff changeset	321 return sockpos;
30 223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 }

Mercurial > dropbear

annotate svr-main.c @ 63:dcc43965928f