Mercurial > dropbear

annotate svr-main.c @ 277:044bc108b9b3

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* Per-IP connection unauthed connection limits * m_close() exits fatally on failure * other cleanups
author Matt Johnston <matt@ucc.asn.au>
date Wed, 08 Mar 2006 12:41:27 +0000
parents 306499676384
children 1f5ec029dfe8
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #include "includes.h"
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26 #include "dbutil.h"
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27 #include "session.h"
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28 #include "buffer.h"
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29 #include "signkey.h"
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30 #include "runopts.h"
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31
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32 static size_t listensockets(int *sock, size_t sockcount, int *maxfd);
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33 static void sigchld_handler(int dummy);
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34 static void sigsegv_handler(int);
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35 static void sigintterm_handler(int fish);
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36 #ifdef INETD_MODE
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37 static void main_inetd();
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38 #endif
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39 #ifdef NON_INETD_MODE
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40 static void main_noinetd();
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41 #endif
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42 static void commonsetup();
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43
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44 #if defined(DBMULTI_dropbear) || !defined(DROPBEAR_MULTI)
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45 #if defined(DBMULTI_dropbear) && defined(DROPBEAR_MULTI)
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46 int dropbear_main(int argc, char ** argv)
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47 #else
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48 int main(int argc, char ** argv)
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49 #endif
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50 {
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51
71
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52
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53 _dropbear_exit = svr_dropbear_exit;
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54 _dropbear_log = svr_dropbear_log;
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55
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56 /* get commandline options */
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57 svr_getopts(argc, argv);
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58
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59 #ifdef INETD_MODE
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60 /* service program mode */
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61 if (svr_opts.inetdmode) {
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62 main_inetd();
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63 /* notreached */
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64 }
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65 #endif
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66
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67 #ifdef NON_INETD_MODE
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68 main_noinetd();
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69 /* notreached */
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70 #endif
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71
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72 dropbear_exit("Compiled without normal mode, can't run without -i\n");
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73 return -1;
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74 }
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75 #endif
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76
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77 #ifdef INETD_MODE
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78 static void main_inetd() {
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79
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80 struct sockaddr_storage remoteaddr;
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81 socklen_t remoteaddrlen;
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82 char * addrstring = NULL;
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83
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84 /* Set up handlers, syslog */
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85 commonsetup();
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86
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87 remoteaddrlen = sizeof(remoteaddr);
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88 if (getpeername(0, (struct sockaddr*)&remoteaddr, &remoteaddrlen) < 0) {
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89 dropbear_exit("Unable to getpeername: %s", strerror(errno));
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90 }
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91
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92 /* In case our inetd was lax in logging source addresses */
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93 addrstring = getaddrstring(&remoteaddr, 1);
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94 dropbear_log(LOG_INFO, "Child connection from %s", addrstring);
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95
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96 /* Don't check the return value - it may just fail since inetd has
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97 * already done setsid() after forking (xinetd on Darwin appears to do
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98 * this */
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99 setsid();
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100
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101 /* Start service program
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102 * -1 is a dummy childpipe, just something we can close() without
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103 * mattering. */
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104 svr_session(0, -1, getaddrhostname(&remoteaddr), addrstring);
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105
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106 /* notreached */
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107 }
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108 #endif /* INETD_MODE */
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109
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110 #ifdef NON_INETD_MODE
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111 void main_noinetd() {
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112 fd_set fds;
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113 struct timeval seltimeout;
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114 unsigned int i, j;
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115 int val;
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116 int maxsock = -1;
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117 int listensocks[MAX_LISTEN_ADDR];
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118 size_t listensockcount = 0;
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119 FILE *pidfile = NULL;
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120
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121 int childpipes[MAX_UNAUTH_CLIENTS];
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122 char * preauth_addrs[MAX_UNAUTH_CLIENTS];
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123
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124 int childsock;
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125 int childpipe[2];
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126
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127 /* fork */
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128 if (svr_opts.forkbg) {
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129 int closefds = 0;
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130 #ifndef DEBUG_TRACE
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131 if (!svr_opts.usingsyslog) {
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132 closefds = 1;
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133 }
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134 #endif
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135 if (daemon(0, closefds) < 0) {
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136 dropbear_exit("Failed to daemonize: %s", strerror(errno));
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137 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
138 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
139
71
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
140 commonsetup();
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
141
101
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents: 71
diff changeset
142
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
143 /* 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
144 if (svr_opts.forkbg) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
145 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
146 } else {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
147 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
148 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
149
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
150 /* 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
151 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
152 if (pidfile) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
153 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
154 fclose(pidfile);
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
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
157 /* 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
158 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
159 childpipes[i] = -1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
160 }
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
161 bzero(preauth_addrs, sizeof(preauth_addrs));
30
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 /* 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
164 /* XXX XXX ports */
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
165 listensockcount = listensockets(listensocks, MAX_LISTEN_ADDR, &maxsock);
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
166 if (listensockcount == 0)
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
167 {
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
168 dropbear_exit("No listening ports available.");
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
169 }
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
170
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
171 /* incoming connection select loop */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
172 for(;;) {
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 FD_ZERO(&fds);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
175
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
176 seltimeout.tv_sec = 60;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
177 seltimeout.tv_usec = 0;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
178
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
179 /* listening sockets */
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
180 for (i = 0; i < listensockcount; i++) {
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
181 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
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 /* pre-authentication clients */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
185 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
186 if (childpipes[i] >= 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
187 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
188 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
189 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
190 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
191
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 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
193
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
194 if (exitflag) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
195 unlink(DROPBEAR_PIDFILE);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
196 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
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 if (val == 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
200 /* timeout reached */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
201 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
202 }
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 if (val < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205 if (errno == EINTR) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
206 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208 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
209 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
210
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
211 /* close fds which have been authed or closed - svr-auth.c handles
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
212 * 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
213 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
214 if (childpipes[i] >= 0 && FD_ISSET(childpipes[i], &fds)) {
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
215 m_close(childpipes[i]);
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216 childpipes[i] = -1;
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
217 m_free(preauth_addrs[i]);
30
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
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221 /* handle each socket which has something to say */
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
222 for (i = 0; i < listensockcount; i++) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
223
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
224 struct sockaddr_storage remoteaddr;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
225 socklen_t remoteaddrlen = 0;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
226 size_t num_unauthed_for_addr = 0;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
227 size_t num_unauthed_total = 0;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
228 char * remote_addr_str = NULL;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
229 pid_t fork_ret = 0;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
230 size_t conn_idx = 0;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
231
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232 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
233 continue;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
235 remoteaddrlen = sizeof(remoteaddr);
63
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding.
Matt Johnston <matt@ucc.asn.au>
parents: 62
diff changeset
236 childsock = accept(listensocks[i],
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding.
Matt Johnston <matt@ucc.asn.au>
parents: 62
diff changeset
237 (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
238
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
239 if (childsock < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240 /* accept failed */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241 continue;
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
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
244 /* Limit the number of unauthenticated connections per IP */
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
245 remote_addr_str = getaddrstring(&remoteaddr, 0);
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
246
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
247 num_unauthed_for_addr = 0;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
248 num_unauthed_total = 0;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
249 for (j = 0; j < MAX_UNAUTH_CLIENTS; j++) {
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
250 if (childpipes[j] >= 0) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
251 num_unauthed_total++;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
252 if (strcmp(remote_addr_str, preauth_addrs[j]) == 0) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
253 num_unauthed_for_addr++;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
254 }
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
255 } else {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
256 /* a free slot */
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
257 conn_idx = j;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
261 if (num_unauthed_total >= MAX_UNAUTH_CLIENTS
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
262 || num_unauthed_for_addr >= MAX_UNAUTH_PER_IP) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
263 goto out;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
265
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
266 if (pipe(childpipe) < 0) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 158
diff changeset
267 TRACE(("error creating child pipe"))
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
268 goto out;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
271 fork_ret = fork();
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
272 if (fork_ret < 0) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
273 dropbear_log(LOG_WARNING, "error forking: %s", strerror(errno));
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
274 goto out;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
275
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
276 } else if (fork_ret > 0) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
278 /* parent */
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
279 childpipes[conn_idx] = childpipe[0];
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
280 m_close(childpipe[1]);
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
281 preauth_addrs[conn_idx] = remote_addr_str;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
282 remote_addr_str = NULL;
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
283
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
284 } else {
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
285
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
286 /* child */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
287 char * addrstring = NULL;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
288 #ifdef DEBUG_FORKGPROF
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
289 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
290 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
291 #endif /* DEBUG_FORKGPROF */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
292
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
293 m_free(remote_addr_str);
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
294 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
295 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
296
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
297 if (setsid() < 0) {
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
298 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
299 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
300
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
301 /* make sure we close sockets */
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
302 for (i = 0; i < listensockcount; i++) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
303 m_close(listensocks[i]);
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
304 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
305
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
306 m_close(childpipe[0]);
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
307
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
308 /* start the session */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
309 svr_session(childsock, childpipe[1],
158
364a75cfebab Log the IP along with auth success/fail attempts
Matt Johnston <matt@ucc.asn.au>
parents: 156
diff changeset
310 getaddrhostname(&remoteaddr),
364a75cfebab Log the IP along with auth success/fail attempts
Matt Johnston <matt@ucc.asn.au>
parents: 156
diff changeset
311 addrstring);
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
312 /* don't return */
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
313 dropbear_assert(0);
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
314 }
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
315
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
316 out:
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
317 /* This section is important for the parent too */
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
318 m_close(childsock);
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
319 if (remote_addr_str) {
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
320 m_free(remote_addr_str);
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
321 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
322 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
323 } /* for(;;) loop */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
324
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
325 /* don't reach here */
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
326 }
71
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
327 #endif /* NON_INETD_MODE */
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
328
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
329
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
330 /* catch + reap zombie children */
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 101
diff changeset
331 static void sigchld_handler(int UNUSED(unused)) {
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
332 struct sigaction sa_chld;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
333
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
334 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
335
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
336 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
337 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
338 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
339 dropbear_exit("signal() error");
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
340 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
341 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
342
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
343 /* catch any segvs */
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 101
diff changeset
344 static void sigsegv_handler(int UNUSED(unused)) {
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
345 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
346 "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
347 exit(EXIT_FAILURE);
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
348 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
349
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
350 /* catch ctrl-c or sigterm */
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 101
diff changeset
351 static void sigintterm_handler(int UNUSED(unused)) {
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
352
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
353 exitflag = 1;
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
354 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
355
71
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
356 /* Things used by inetd and non-inetd modes */
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
357 static void commonsetup() {
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
358
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
359 struct sigaction sa_chld;
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
360 #ifndef DISABLE_SYSLOG
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
361 if (svr_opts.usingsyslog) {
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
362 startsyslog();
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
363 }
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
364 #endif
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
365
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
366 /* set up cleanup handler */
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
367 if (signal(SIGINT, sigintterm_handler) == SIG_ERR ||
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
368 #ifndef DEBUG_VALGRIND
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
369 signal(SIGTERM, sigintterm_handler) == SIG_ERR ||
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
370 #endif
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
371 signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
372 dropbear_exit("signal() error");
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
373 }
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
374
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
375 /* catch and reap zombie children */
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
376 sa_chld.sa_handler = sigchld_handler;
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
377 sa_chld.sa_flags = SA_NOCLDSTOP;
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
378 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) {
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
379 dropbear_exit("signal() error");
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
380 }
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
381 if (signal(SIGSEGV, sigsegv_handler) == SIG_ERR) {
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
382 dropbear_exit("signal() error");
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
383 }
113
775c6cbfe995 Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
384
775c6cbfe995 Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
385 /* Now we can setup the hostkeys - needs to be after logging is on,
775c6cbfe995 Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
386 * otherwise we might end up blatting error messages to the socket */
775c6cbfe995 Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
387 loadhostkeys();
71
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
388 }
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 63
diff changeset
389
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
390 /* Set up listening sockets for all the requested ports */
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
391 static size_t listensockets(int *sock, size_t sockcount, int *maxfd) {
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
392
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
393 unsigned int i;
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
394 char* errstring = NULL;
277
044bc108b9b3 * Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
395 size_t sockpos = 0;
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
396 int nsock;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
397
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 158
diff changeset
398 TRACE(("listensockets: %d to try\n", svr_opts.portcount))
101
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents: 71
diff changeset
399
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
400 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
401
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 158
diff changeset
402 TRACE(("listening on '%s'", svr_opts.ports[i]))
101
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents: 71
diff changeset
403
258
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 241
diff changeset
404 nsock = dropbear_listen("", svr_opts.ports[i], &sock[sockpos],
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
405 sockcount - sockpos,
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
406 &errstring, maxfd);
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
407
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
408 if (nsock < 0) {
101
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents: 71
diff changeset
409 dropbear_log(LOG_WARNING, "Failed listening on '%s': %s",
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents: 71
diff changeset
410 svr_opts.ports[i], errstring);
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
411 m_free(errstring);
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
412 continue;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
413 }
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
414
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
415 sockpos += nsock;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
416
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
417 }
62
20563735e8b5 just checkpointing
Matt Johnston <matt@ucc.asn.au>
parents: 30
diff changeset
418 return sockpos;
30
223b0f5f8dce Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
419 }