dropbear: svr-chansession.c annotate

annotate svr-chansession.c @ 314:827f87dfbc22 ucc-axis-hack

*hack hack hack* get rid of a few more bits

author	matt-ucc@ucc.asn.au
date	Mon, 27 Mar 2006 08:36:44 +0000
parents	fabcee551349
children

rev	line source
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * Dropbear - a SSH2 server
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * Copyright (c) 2002,2003 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required 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
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * SOFTWARE. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 #include "packet.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #include "buffer.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #include "session.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "dbutil.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 #include "channel.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 #include "chansession.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 #include "sshpty.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 #include "termcodes.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 #include "ssh.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 #include "random.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 #include "utmp.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 #include "x11fwd.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 #include "agentfwd.h"
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	39 #include "runopts.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 /* Handles sessions (either shells or programs) requested by the client */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 static int sessioncommand(struct Channel channel, struct ChanSess chansess,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 int iscmd, int issubsys);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 static int sessionpty(struct ChanSess * chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 static int sessionsignal(struct ChanSess *chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 static int noptycommand(struct Channel channel, struct ChanSess chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 static int ptycommand(struct Channel channel, struct ChanSess chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 static int sessionwinchange(struct ChanSess *chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 static void execchild(struct ChanSess *chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 static void addchildpid(struct ChanSess *chansess, pid_t pid);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 static void sesssigchild_handler(int val);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 static void closechansess(struct Channel *channel);
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	54 static int newchansess(struct Channel *channel);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 static void chansessionrequest(struct Channel *channel);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 static void send_exitsignalstatus(struct Channel *channel);
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	58 static void send_msg_chansess_exitstatus(struct Channel * channel,
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	59 struct ChanSess * chansess);
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	60 static void send_msg_chansess_exitsignal(struct Channel * channel,
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	61 struct ChanSess * chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 static int sesscheckclose(struct Channel *channel);
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	63 static void get_termmodes(struct ChanSess *chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	65 static void serial_connect(struct Channel *channel);
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	66 static int sessionbreak(struct ChanSess *chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 /* required to clear environment */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 extern char** environ;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 static int sesscheckclose(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 struct ChanSess chansess = (struct ChanSess)channel->typedata;
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	73 return chansess->exit.exitpid >= 0;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	76 /* Handler for childs exiting, store the state for return to the client */
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	77
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	78 /* There's a particular race we have to watch out for: if the forked child
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	79 * executes, exits, and this signal-handler is called, all before the parent
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	80 * gets to run, then the childpids[] array won't have the pid in it. Hence we
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	81 * use the svr_ses.lastexit struct to hold the exit, which is then compared by
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	82 * the parent when it runs. This work correctly at least in the case of a
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	83 * single shell spawned (ie the usual case) */
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	84 static void sesssigchild_handler(int UNUSED(dummy)) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 int status;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 pid_t pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89 struct sigaction sa_chld;
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	90 struct exitinfo *exit = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	92 TRACE(("enter sigchld handler"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 /* find the corresponding chansess */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 for (i = 0; i < svr_ses.childpidsize; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 if (svr_ses.childpids[i].pid == pid) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	98 exit = &svr_ses.childpids[i].chansess->exit;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	99 break;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 }
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	102
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	103 /* If the pid wasn't matched, then we might have hit the race mentioned
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	104 * above. So we just store the info for the parent to deal with */
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	105 if (i == svr_ses.childpidsize) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	106 exit = &svr_ses.lastexit;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	107 }
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	108
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	109 exit->exitpid = pid;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	110 if (WIFEXITED(status)) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	111 exit->exitstatus = WEXITSTATUS(status);
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	112 }
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	113 if (WIFSIGNALED(status)) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	114 exit->exitsignal = WTERMSIG(status);
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	115 #if !defined(AIX) && defined(WCOREDUMP)
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	116 exit->exitcore = WCOREDUMP(status);
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	117 #else
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	118 exit->exitcore = 0;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	119 #endif
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	120 } else {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	121 /* we use this to determine how pid exited */
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	122 exit->exitsignal = -1;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	123 }
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	124 exit = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 }
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	126
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	127
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 sa_chld.sa_handler = sesssigchild_handler;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 sa_chld.sa_flags = SA_NOCLDSTOP;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 sigaction(SIGCHLD, &sa_chld, NULL);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	131 TRACE(("leave sigchld handler"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	134 #if 0
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 /* send the exit status or the signal causing termination for a session */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 /* XXX server */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 static void send_exitsignalstatus(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 struct ChanSess chansess = (struct ChanSess)channel->typedata;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	141 if (chansess->exit.exitpid >= 0) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	142 if (chansess->exit.exitsignal > 0) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 send_msg_chansess_exitsignal(channel, chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 send_msg_chansess_exitstatus(channel, chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 /* send the exitstatus to the client */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 static void send_msg_chansess_exitstatus(struct Channel * channel,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 struct ChanSess * chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	154 dropbear_assert(chansess->exit.exitpid != -1);
c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	155 dropbear_assert(chansess->exit.exitsignal == -1);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 CHECKCLEARTOWRITE();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 buf_putint(ses.writepayload, channel->remotechan);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 buf_putstring(ses.writepayload, "exit-status", 11);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 buf_putbyte(ses.writepayload, 0); /* boolean FALSE */
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	163 buf_putint(ses.writepayload, chansess->exit.exitstatus);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 encrypt_packet();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 /* send the signal causing the exit to the client */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 static void send_msg_chansess_exitsignal(struct Channel * channel,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 struct ChanSess * chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 char* signame = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	176 dropbear_assert(chansess->exit.exitpid != -1);
c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	177 dropbear_assert(chansess->exit.exitsignal > 0);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 CHECKCLEARTOWRITE();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 /* we check that we can match a signal name, otherwise
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 * don't send anything */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 for (i = 0; signames[i].name != NULL; i++) {
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	184 if (signames[i].signal == chansess->exit.exitsignal) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 signame = signames[i].name;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 break;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 if (signame == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 buf_putint(ses.writepayload, channel->remotechan);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 buf_putstring(ses.writepayload, "exit-signal", 11);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 buf_putbyte(ses.writepayload, 0); /* boolean FALSE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198 buf_putstring(ses.writepayload, signame, strlen(signame));
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	199 buf_putbyte(ses.writepayload, chansess->exit.exitcore);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 buf_putstring(ses.writepayload, "", 0); /* error msg */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 buf_putstring(ses.writepayload, "", 0); /* lang */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 encrypt_packet();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 }
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	205 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 /* set up a session channel */
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	208 static int newchansess(struct Channel *channel) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 struct ChanSess *chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	212 dropbear_assert(channel->typedata == NULL);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 chansess = (struct ChanSess*)m_malloc(sizeof(struct ChanSess));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 chansess->cmd = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 chansess->pid = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 /* pty details */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 chansess->master = -1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 chansess->slave = -1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 chansess->tty = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 chansess->term = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	224 chansess->exit.exitpid = -1;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 channel->typedata = chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 #ifndef DISABLE_X11FWD
9 7f77962de998 - Reworked non-channel fd handling to listener.c Matt Johnston <matt@ucc.asn.au> parents: 7 diff changeset	229 chansess->x11listener = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 chansess->x11authprot = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 chansess->x11authcookie = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 #ifndef DISABLE_AGENTFWD
9 7f77962de998 - Reworked non-channel fd handling to listener.c Matt Johnston <matt@ucc.asn.au> parents: 7 diff changeset	235 chansess->agentlistener = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 chansess->agentfile = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 chansess->agentdir = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	240 return 0;
ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	241
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 /* clean a session channel */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245 static void closechansess(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 struct ChanSess *chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249 struct logininfo *li;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 chansess = (struct ChanSess*)channel->typedata;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	253 #if 0
7 425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	254 send_exitsignalstatus(channel);
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	255 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	257 TRACE(("enter closechansess"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 if (chansess == NULL) {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	259 TRACE(("leave closechansess: chansess == NULL"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 m_free(chansess->cmd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 m_free(chansess->term);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	266 #if 0
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 if (chansess->tty) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268 /* write the utmp/wtmp login record */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	269 li = login_alloc_entry(chansess->pid, ses.authstate.username,
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 ses.remotehost, chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 login_logout(li);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 login_free_entry(li);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274 pty_release(chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 m_free(chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 }
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	277 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 #ifndef DISABLE_X11FWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 x11cleanup(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 #ifndef DISABLE_AGENTFWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 agentcleanup(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 /* clear child pid entries */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288 for (i = 0; i < svr_ses.childpidsize; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 if (svr_ses.childpids[i].chansess == chansess) {
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	290 dropbear_assert(svr_ses.childpids[i].pid > 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: 133 diff changeset	291 TRACE(("closing pid %d", svr_ses.childpids[i].pid))
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	292 TRACE(("exitpid = %d", chansess->exit.exitpid))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 svr_ses.childpids[i].pid = -1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 svr_ses.childpids[i].chansess = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 m_free(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	300 TRACE(("leave closechansess"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 /* Handle requests for a channel. These can be execution requests,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304 * or x11/authagent forwarding. These are passed to appropriate handlers */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305 static void chansessionrequest(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	307 unsigned char * type = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 unsigned int typelen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309 unsigned char wantreply;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	310 int ret = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311 struct ChanSess *chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	313 TRACE(("enter chansessionrequest"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315 type = buf_getstring(ses.payload, &typelen);
179 161557a9dde8 * fix longstanding bug with connections being closed on failure to Matt Johnston <matt@ucc.asn.au> parents: 171 diff changeset	316 wantreply = buf_getbool(ses.payload);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318 if (typelen > MAX_NAME_LEN) {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	319 TRACE(("leave chansessionrequest: type too long")) /* XXX send error?*/
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 goto out;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 chansess = (struct ChanSess*)channel->typedata;
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	324 dropbear_assert(chansess != NULL);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	325 TRACE(("type is %s", type))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	327 #if 0
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	328 hack
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 if (strcmp(type, "window-change") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330 ret = sessionwinchange(chansess);
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	331 } else
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	332 #endif
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	333 if (strcmp(type, "shell") == 0) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 ret = sessioncommand(channel, chansess, 0, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335 } else if (strcmp(type, "pty-req") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336 ret = sessionpty(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337 } else if (strcmp(type, "exec") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	338 ret = sessioncommand(channel, chansess, 1, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339 } else if (strcmp(type, "subsystem") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	340 ret = sessioncommand(channel, chansess, 1, 1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341 #ifndef DISABLE_X11FWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342 } else if (strcmp(type, "x11-req") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	343 ret = x11req(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	345 #ifndef DISABLE_AGENTFWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346 } else if (strcmp(type, "[email protected]") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	347 ret = agentreq(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	348 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	349 } else if (strcmp(type, "signal") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	350 ret = sessionsignal(chansess);
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	351 } else if (strcmp(type, "break") == 0) {
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	352 ret = sessionbreak(chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	353 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	354 /* etc, todo "env", "subsystem" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	355 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	356
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	357 out:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	358
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	359 if (wantreply) {
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	360 if (ret == DROPBEAR_SUCCESS) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	361 send_msg_channel_success(channel);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363 send_msg_channel_failure(channel);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	364 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	366
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	367 m_free(type);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	368 TRACE(("leave chansessionrequest"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	371 static int sessionbreak(struct ChanSess *chansess) {
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	372
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	373 int v;
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	374 char* argv[3];
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	375 TRACE(("break!!!!"))
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	376
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	377 v = fork();
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	378 if (v < 0) {
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	379 dropbear_exit("failed for for break");
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	380 } else if (v == 0) {
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	381 /* child */
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	382 argv[0] = "mfctl";
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	383 argv[1] = "b";
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	384 argv[2] = NULL;
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	385
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	386 execv("/etc/mfctl", argv);
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	387 dropbear_log(LOG_INFO, "break failed, eh?");
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	388
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	389 } else {
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	390 /* parent - do nothing */
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	391 }
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	392
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	393 return DROPBEAR_SUCCESS;
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	394 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	395
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	396 /* Send a signal to a session's process as requested by the client*/
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	397 static int sessionsignal(struct ChanSess *chansess) {
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	398 #if 0
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	399
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	400 int sig = 0;
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	401 unsigned char* signame = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	403
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	404 if (chansess->pid == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	405 /* haven't got a process pid yet */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	406 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	407 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	408
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	409 signame = buf_getstring(ses.payload, NULL);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	410
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	411 i = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	412 while (signames[i].name != 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	413 if (strcmp(signames[i].name, signame) == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	414 sig = signames[i].signal;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	415 break;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	416 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	417 i++;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	418 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	419
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	420 m_free(signame);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	421
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	422 if (sig == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	423 /* failed */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	424 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	425 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	426
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	427 if (kill(chansess->pid, sig) < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	428 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	429 }
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	430 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	431
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	432 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	433 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	434
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	435 /* Let the process know that the window size has changed, as notified from the
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	436 * client. Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	437 static int sessionwinchange(struct ChanSess *chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	438
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	439 #if 0
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	440 int termc, termr, termw, termh;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	441
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	442 if (chansess->master < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	443 /* haven't got a pty yet */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	444 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	445 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	446
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	447 termc = buf_getint(ses.payload);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	448 termr = buf_getint(ses.payload);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	449 termw = buf_getint(ses.payload);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	450 termh = buf_getint(ses.payload);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	451
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	452 pty_change_window_size(chansess->master, termr, termc, termw, termh);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	453
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	454 #endif
827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	455 return DROPBEAR_SUCCESS;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	456 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	457
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	458 #if 0
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	459 static void get_termmodes(struct ChanSess *chansess) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	460
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	461 struct termios termio;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	462 unsigned char opcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	463 unsigned int value;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	464 const struct TermCode * termcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	465 unsigned int len;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	466
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	467 TRACE(("enter get_termmodes"))
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	468
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	469 /* Term modes */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	470 /* We'll ignore errors and continue if we can't set modes.
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	471 * We're ignoring baud rates since they seem evil */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	472 if (tcgetattr(chansess->master, &termio) == -1) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	473 return;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	474 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	475
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	476 len = buf_getint(ses.payload);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	477 TRACE(("term mode str %d p->l %d p->p %d",
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	478 len, ses.payload->len , ses.payload->pos));
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	479 if (len != ses.payload->len - ses.payload->pos) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	480 dropbear_exit("bad term mode string");
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	481 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	482
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	483 if (len == 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: 133 diff changeset	484 TRACE(("leave get_termmodes: empty terminal modes string"))
171 8e68dbe8687b put back 'return;' on empty terminal mode strings which was erroneously Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	485 return;
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	486 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	487
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	488 while (((opcode = buf_getbyte(ses.payload)) != 0x00) && opcode <= 159) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	489
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	490 /* must be before checking type, so that value is consumed even if
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	491 * we don't use it */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	492 value = buf_getint(ses.payload);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	493
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	494 /* handle types of code */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	495 if (opcode > MAX_TERMCODE) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	496 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	497 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	498 termcode = &termcodes[(unsigned int)opcode];
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	499
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	500
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	501 switch (termcode->type) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	502
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	503 case TERMCODE_NONE:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	504 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	505
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	506 case TERMCODE_CONTROLCHAR:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	507 termio.c_cc[termcode->mapcode] = value;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	508 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	509
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	510 case TERMCODE_INPUT:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	511 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	512 termio.c_iflag \|= termcode->mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	513 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	514 termio.c_iflag &= ~(termcode->mapcode);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	515 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	516 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	517
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	518 case TERMCODE_OUTPUT:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	519 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	520 termio.c_oflag \|= termcode->mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	521 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	522 termio.c_oflag &= ~(termcode->mapcode);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	523 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	524 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	525
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	526 case TERMCODE_LOCAL:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	527 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	528 termio.c_lflag \|= termcode->mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	529 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	530 termio.c_lflag &= ~(termcode->mapcode);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	531 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	532 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	533
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	534 case TERMCODE_CONTROL:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	535 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	536 termio.c_cflag \|= termcode->mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	537 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	538 termio.c_cflag &= ~(termcode->mapcode);
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	539 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	540 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	541
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	542 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	543 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	544 if (tcsetattr(chansess->master, TCSANOW, &termio) < 0) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	545 dropbear_log(LOG_INFO, "error setting terminal attributes");
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	546 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	547 TRACE(("leave get_termmodes"))
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	548 }
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	549 #endif
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	550
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	551 /* Set up a session pty which will be used to execute the shell or program.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	552 * The pty is allocated now, and kept for when the shell/program executes.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	553 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	554 static int sessionpty(struct ChanSess * chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	555
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	556 unsigned int termlen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	557 unsigned char namebuf[65];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	558
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	559 TRACE(("enter sessionpty"))
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	560 /* Axis hack */
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	561 TRACE(("this does nothing"))
6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	562 #if 0
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	563 chansess->term = buf_getstring(ses.payload, &termlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	564 if (termlen > MAX_TERM_LEN) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	565 /* TODO send disconnect ? */
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	566 TRACE(("leave sessionpty: term len too long"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	567 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	568 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	569
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	570 /* allocate the pty */
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	571 if (chansess->master != -1) {
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	572 dropbear_exit("multiple pty requests");
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	573 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	574 if (pty_allocate(&chansess->master, &chansess->slave, namebuf, 64) == 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: 133 diff changeset	575 TRACE(("leave sessionpty: failed to allocate pty"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	576 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	577 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	578
11 f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 9 diff changeset	579 chansess->tty = (char*)m_strdup(namebuf);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	580 if (!chansess->tty) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	581 dropbear_exit("out of memory"); /* TODO disconnect */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	582 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	583
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	584 pty_setowner(ses.authstate.pw, chansess->tty);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	585
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	586 /* Set up the rows/col counts */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	587 sessionwinchange(chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	588
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	589 /* Read the terminal modes */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	590 get_termmodes(chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	591
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	592 TRACE(("leave sessionpty"))
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	593 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	594 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	595 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	596
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	597 /* Handle a command request from the client. This is used for both shell
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	598 * and command-execution requests, and passes the command to
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	599 * noptycommand or ptycommand as appropriate.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	600 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	601 static int sessioncommand(struct Channel channel, struct ChanSess chansess,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	602 int iscmd, int issubsys) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	603
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	604 unsigned int cmdlen;
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	605 int ret;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	606
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	607 TRACE(("enter sessioncommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	608
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	609 /* Axis hack */
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	610 if (strcmp(ses.authstate.username, SERIAL_USER) == 0) {
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	611 serial_connect(channel);
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	612 return DROPBEAR_SUCCESS;
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	613 }
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	614
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	615 if (chansess->cmd != NULL) {
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	616 /* Note that only one command can _succeed_. The client might try
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	617 * one command (which fails), then try another. Ie fallback
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	618 * from sftp to scp */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	619 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	620 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	621
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	622 if (iscmd) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	623 /* "exec" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	624 chansess->cmd = buf_getstring(ses.payload, &cmdlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	625
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	626 if (cmdlen > MAX_CMD_LEN) {
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	627 m_free(chansess->cmd);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	628 /* TODO - send error - too long ? */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	629 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	630 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	631 if (issubsys) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	632 #ifdef SFTPSERVER_PATH
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	633 if ((cmdlen == 4) && strncmp(chansess->cmd, "sftp", 4) == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	634 m_free(chansess->cmd);
11 f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 9 diff changeset	635 chansess->cmd = m_strdup(SFTPSERVER_PATH);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	636 } else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	637 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	638 {
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	639 m_free(chansess->cmd);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	640 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	641 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	642 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	643 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	644
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	645 if (chansess->term == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	646 /* no pty */
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	647 ret = noptycommand(channel, chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	648 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	649 /* want pty */
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	650 //ret = ptycommand(channel, chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	651 }
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	652
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	653 if (ret == DROPBEAR_FAILURE) {
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	654 m_free(chansess->cmd);
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	655 }
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	656 return ret;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	657 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	658
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	659 static void serial_connect(struct Channel *channel) {
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	660
307 24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	661 int serial_fd;
312 24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	662 struct termios options;
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	663
307 24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	664 TRACE(("enter serial_connect"))
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	665
307 24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	666 serial_fd = open(SERIAL_DEVICE, O_RDWR \| O_NOCTTY, 0);
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	667 TRACE(("serial_fd = %d", serial_fd))
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	668 if (serial_fd < 0) {
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	669 TRACE(("errno %d", errno))
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	670 dropbear_exit("Failed opening '%s': %d %s", SERIAL_DEVICE,
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	671 errno, strerror(errno));
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	672 }
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	673
307 24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	674 TRACE(("success serial_connect"))
312 24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	675
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	676 /* set some serial options. XXX needs attention */
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	677 tcgetattr(serial_fd, &options);
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	678
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	679 cfsetispeed(&options, B9600);
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	680 cfsetospeed(&options, B9600);
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	681
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	682 options.c_cflag &= ~CSIZE; /* Mask the character size bits */
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	683 options.c_cflag \|= CS8; /* Select 8 data bits */
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	684 options.c_cflag &= ~PARENB;
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	685 options.c_cflag &= ~CSTOPB;
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	686 options.c_cflag &= ~CSIZE;
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	687
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	688 options.c_lflag &= ~(ICANON \| ECHO \| ECHOE \| ISIG);
313 fabcee551349 fix up newlines for the serial bit matt-ucc@ucc.asn.au parents: 312 diff changeset	689
312 24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	690 options.c_iflag \|= (INPCK \| ISTRIP);
313 fabcee551349 fix up newlines for the serial bit matt-ucc@ucc.asn.au parents: 312 diff changeset	691 options.c_iflag \|= INLCR;
312 24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	692
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	693 tcsetattr(serial_fd, TCSANOW, &options);
24056a5eb75b serial works better. enable DSS. matt-ucc@ucc.asn.au parents: 308 diff changeset	694
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	695
307 24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	696 ses.maxfd = MAX(serial_fd, channel->writefd);
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	697 setnonblocking(serial_fd);
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	698
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	699 channel->writefd = serial_fd;
24b19535264b progress for serial logins matt-ucc@ucc.asn.au parents: 306 diff changeset	700 channel->readfd = serial_fd;
306 5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	701 }
5d5bbca82aba Use password file, add serial option Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	702
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	703 /* Execute a command and set up redirection of stdin/stdout/stderr without a
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	704 * pty.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	705 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	706 static int noptycommand(struct Channel channel, struct ChanSess chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	707
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	708 int infds[2];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	709 int outfds[2];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	710 int errfds[2];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	711 pid_t pid;
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	712 unsigned int i;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	713
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	714 TRACE(("enter noptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	715
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	716 /* redirect stdin/stdout/stderr */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	717 if (pipe(infds) != 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	718 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	719 if (pipe(outfds) != 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	720 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	721 if (pipe(errfds) != 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	722 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	723
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	724 #ifdef __uClinux__
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	725 pid = vfork();
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	726 #else
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	727 pid = fork();
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	728 #endif
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	729
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	730 if (pid < 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	731 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	732
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	733 if (!pid) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	734 /* child */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	735
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	736 /* redirect stdin/stdout */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	737 #define FDIN 0
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	738 #define FDOUT 1
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	739 if ((dup2(infds[FDIN], STDIN_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	740 (dup2(outfds[FDOUT], STDOUT_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	741 (dup2(errfds[FDOUT], STDERR_FILENO) < 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: 133 diff changeset	742 TRACE(("leave noptycommand: error redirecting FDs"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	743 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	744 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	745
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	746 close(infds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	747 close(infds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	748 close(outfds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	749 close(outfds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	750 close(errfds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	751 close(errfds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	752
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	753 execchild(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	754 /* not reached */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	755
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	756 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	757 /* parent */
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	758 TRACE(("continue noptycommand: parent"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	759 chansess->pid = pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	760
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	761 addchildpid(chansess, pid);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	762
130 154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	763 if (svr_ses.lastexit.exitpid != -1) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	764 /* The child probably exited and the signal handler triggered
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	765 * possibly before we got around to adding the childpid. So we fill
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	766 * out it's data manually */
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	767 for (i = 0; i < svr_ses.childpidsize; i++) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	768 if (svr_ses.childpids[i].pid == pid) {
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	769 svr_ses.childpids[i].chansess->exit = svr_ses.lastexit;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	770 svr_ses.lastexit.exitpid = -1;
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	771 }
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	772 }
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	773 }
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	774
154c8d5a6d1e propagate of 82bb923d0154750ef716b66b498561f882891946 and f51a272341ee12268fe7028bc2f2bad66c603069 from branch 'matt.dbclient.work' to 'matt.dbclient.rez' Matt Johnston <matt@ucc.asn.au> parents: 115 diff changeset	775
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	776 close(infds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	777 close(outfds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	778 close(errfds[FDOUT]);
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	779 channel->writefd = infds[FDOUT];
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	780 channel->readfd = outfds[FDIN];
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	781 channel->errfd = errfds[FDIN];
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	782 ses.maxfd = MAX(ses.maxfd, channel->writefd);
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	783 ses.maxfd = MAX(ses.maxfd, channel->readfd);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	784 ses.maxfd = MAX(ses.maxfd, channel->errfd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	785
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	786 setnonblocking(channel->readfd);
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	787 setnonblocking(channel->writefd);
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	788 setnonblocking(channel->errfd);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	789
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	790 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	791 #undef FDIN
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	792 #undef FDOUT
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	793
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	794 TRACE(("leave noptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	795 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	796 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	797
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	798 /* Execute a command or shell within a pty environment, and set up
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	799 * redirection as appropriate.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	800 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	801 #if 0
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	802 static int ptycommand(struct Channel channel, struct ChanSess chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	803
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	804 pid_t pid;
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	805 struct logininfo *li = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	806 #ifdef DO_MOTD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	807 buffer * motdbuf = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	808 int len;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	809 struct stat sb;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	810 char *hushpath = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	811 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	812
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	813 TRACE(("enter ptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	814
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	815 /* we need to have a pty allocated */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	816 if (chansess->master == -1 \|\| chansess->tty == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	817 dropbear_log(LOG_WARNING, "no pty was allocated, couldn't execute");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	818 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	819 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	820
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	821 #ifdef __uClinux__
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	822 pid = vfork();
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	823 #else
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	824 pid = fork();
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	825 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	826 if (pid < 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	827 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	828
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	829 if (pid == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	830 /* child */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	831
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	832 /* redirect stdin/stdout/stderr */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	833 close(chansess->master);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	834
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	835 /* hack
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	836 pty_make_controlling_tty(&chansess->slave, chansess->tty);
308 6e5f8ce73bf2 add break handler matt-ucc@ucc.asn.au parents: 307 diff changeset	837 */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	838
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	839 if ((dup2(chansess->slave, STDIN_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	840 (dup2(chansess->slave, STDERR_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	841 (dup2(chansess->slave, STDOUT_FILENO) < 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: 133 diff changeset	842 TRACE(("leave ptycommand: error redirecting filedesc"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	843 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	844 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	845
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	846 close(chansess->slave);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	847
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	848 #if 0
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	849 /* write the utmp/wtmp login record - must be after changing the
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	850 * terminal used for stdout with the dup2 above */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	851 li= login_alloc_entry(getpid(), ses.authstate.username,
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	852 ses.remotehost, chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	853 login_login(li);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	854 login_free_entry(li);
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	855 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	856
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	857 m_free(chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	858
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	859 #ifdef DO_MOTD
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	860 if (svr_opts.domotd) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	861 /* don't show the motd if ~/.hushlogin exists */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	862
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	863 /* 11 == strlen("/hushlogin\0") */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	864 len = strlen(ses.authstate.pw->pw_dir) + 11;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	865
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	866 hushpath = m_malloc(len);
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	867 snprintf(hushpath, len, "%s/hushlogin", ses.authstate.pw->pw_dir);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	868
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	869 if (stat(hushpath, &sb) < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	870 /* more than a screenful is stupid IMHO */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	871 motdbuf = buf_new(80 * 25);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	872 if (buf_readfile(motdbuf, MOTD_FILENAME) == DROPBEAR_SUCCESS) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	873 buf_setpos(motdbuf, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	874 while (motdbuf->pos != motdbuf->len) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	875 len = motdbuf->len - motdbuf->pos;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	876 len = write(STDOUT_FILENO,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	877 buf_getptr(motdbuf, len), len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	878 buf_incrpos(motdbuf, len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	879 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	880 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	881 buf_free(motdbuf);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	882 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	883 m_free(hushpath);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	884 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	885 #endif /* DO_MOTD */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	886
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	887 execchild(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	888 /* not reached */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	889
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	890 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	891 /* parent */
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	892 TRACE(("continue ptycommand: parent"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	893 chansess->pid = pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	894
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	895 /* add a child pid */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	896 addchildpid(chansess, pid);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	897
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	898 close(chansess->slave);
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	899 channel->writefd = chansess->master;
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	900 channel->readfd = chansess->master;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	901 /* don't need to set stderr here */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	902 ses.maxfd = MAX(ses.maxfd, chansess->master);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	903
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	904 setnonblocking(chansess->master);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	905
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	906 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	907
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 133 diff changeset	908 TRACE(("leave ptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	909 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	910 }
314 827f87dfbc22 hack hack hack matt-ucc@ucc.asn.au parents: 313 diff changeset	911 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	912
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	913 /* Add the pid of a child to the list for exit-handling */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	914 static void addchildpid(struct ChanSess *chansess, pid_t pid) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	915
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	916 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	917 for (i = 0; i < svr_ses.childpidsize; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	918 if (svr_ses.childpids[i].pid == -1) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	919 break;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	920 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	921 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	922
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	923 /* need to increase size */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	924 if (i == svr_ses.childpidsize) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	925 svr_ses.childpids = (struct ChildPid*)m_realloc(svr_ses.childpids,
264 541b14504870 * fix incorrect array sizing Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	926 sizeof(struct ChildPid) * (svr_ses.childpidsize+1));
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	927 svr_ses.childpidsize++;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	928 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	929
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	930 svr_ses.childpids[i].pid = pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	931 svr_ses.childpids[i].chansess = chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	932
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	933 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	934
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	935 /* Clean up, drop to user privileges, set up the environment and execute
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	936 * the command/shell. This function does not return. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	937 static void execchild(struct ChanSess *chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	938
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	939 char *argv[4];
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	940 char * usershell = NULL;
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	941 char * baseshell = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	942 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	943
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	944 /* with uClinux we'll have vfork()ed, so don't want to overwrite the
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	945 * hostkey. can't think of a workaround to clear it */
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	946 #ifndef __uClinux__
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	947 /* wipe the hostkey */
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	948 sign_key_free(svr_opts.hostkey);
469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	949 svr_opts.hostkey = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	950
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	951 /* overwrite the prng state */
272 3be7ae2e8dfa Only read /dev/random once when the program starts Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	952 reseedrandom();
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	953 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	954
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	955 /* close file descriptors except stdin/stdout/stderr
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	956 * Need to be sure FDs are closed here to avoid reading files as root */
208 1a52846ec11f * fix off-by-one closing open FDs Matt Johnston <matt@ucc.asn.au> parents: 204 diff changeset	957 for (i = 3; i <= (unsigned int)ses.maxfd; i++) {
277 044bc108b9b3 * Per-IP connection unauthed connection limits Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	958 m_close(i);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	959 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	960
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	961 /* clear environment */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	962 /* if we're debugging using valgrind etc, we need to keep the LD_PRELOAD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	963 * etc. This is hazardous, so should only be used for debugging. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	964 #ifndef DEBUG_VALGRIND
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	965 #ifdef HAVE_CLEARENV
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	966 clearenv();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	967 #else /* don't HAVE_CLEARENV */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	968 /* Yay for posix. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	969 if (environ) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	970 environ[0] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	971 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	972 #endif /* HAVE_CLEARENV */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	973 #endif /* DEBUG_VALGRIND */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	974
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	975 /* We can only change uid/gid as root ... */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	976 if (getuid() == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	977
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	978 if ((setgid(ses.authstate.pw->pw_gid) < 0) \|\|
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	979 (initgroups(ses.authstate.pw->pw_name,
204 675f7bf3c391 Seperate out exit errors from setgid()/initgroups(), and errors from setuid(), Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	980 ses.authstate.pw->pw_gid) < 0)) {
675f7bf3c391 Seperate out exit errors from setgid()/initgroups(), and errors from setuid(), Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	981 dropbear_exit("error changing user group");
675f7bf3c391 Seperate out exit errors from setgid()/initgroups(), and errors from setuid(), Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	982 }
675f7bf3c391 Seperate out exit errors from setgid()/initgroups(), and errors from setuid(), Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	983 if (setuid(ses.authstate.pw->pw_uid) < 0) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	984 dropbear_exit("error changing user");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	985 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	986 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	987 /* ... but if the daemon is the same uid as the requested uid, we don't
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	988 * need to */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	989
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	990 /* XXX - there is a minor issue here, in that if there are multiple
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	991 * usernames with the same uid, but differing groups, then the
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	992 * differing groups won't be set (as with initgroups()). The solution
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	993 * is for the sysadmin not to give out the UID twice */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	994 if (getuid() != ses.authstate.pw->pw_uid) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	995 dropbear_exit("couldn't change user as non-root");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	996 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	997 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	998
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	999 /* an empty shell should be interpreted as "/bin/sh" */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	1000 if (ses.authstate.pw->pw_shell[0] == '\0') {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1001 usershell = "/bin/sh";
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1002 } else {
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	1003 usershell = ses.authstate.pw->pw_shell;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1004 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1005
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1006 /* set env vars */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	1007 addnewvar("USER", ses.authstate.pw->pw_name);
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	1008 addnewvar("LOGNAME", ses.authstate.pw->pw_name);
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	1009 addnewvar("HOME", ses.authstate.pw->pw_dir);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1010 addnewvar("SHELL", usershell);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1011 if (chansess->term != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1012 addnewvar("TERM", chansess->term);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1013 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1014
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1015 /* change directory */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	1016 if (chdir(ses.authstate.pw->pw_dir) < 0) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1017 dropbear_exit("error changing directory");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1018 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1019
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1020 #ifndef DISABLE_X11FWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1021 /* set up X11 forwarding if enabled */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1022 x11setauth(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1023 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1024 #ifndef DISABLE_AGENTFWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1025 /* set up agent env variable */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1026 agentset(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1027 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1028
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	1029 /* Re-enable SIGPIPE for the executed process */
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	1030 if (signal(SIGPIPE, SIG_DFL) == SIG_ERR) {
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	1031 dropbear_exit("signal() error");
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	1032 }
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	1033
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1034 baseshell = basename(usershell);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1035
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1036 if (chansess->cmd != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1037 argv[0] = baseshell;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1038 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1039 /* a login shell should be "-bash" for "/bin/bash" etc */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1040 int len = strlen(baseshell) + 2; /* 2 for "-" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1041 argv[0] = (char*)m_malloc(len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1042 snprintf(argv[0], len, "-%s", baseshell);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1043 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1044
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1045 if (chansess->cmd != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1046 argv[1] = "-c";
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1047 argv[2] = chansess->cmd;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1048 argv[3] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1049 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1050 /* construct a shell of the form "-bash" etc */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1051 argv[1] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1052 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1053
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1054 execv(usershell, argv);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1055
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1056 /* only reached on error */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1057 dropbear_exit("child failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1058 }
9 7f77962de998 - Reworked non-channel fd handling to listener.c Matt Johnston <matt@ucc.asn.au> parents: 7 diff changeset	1059
7 425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1060 const struct ChanType svrchansess = {
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1061 0, /* sepfds */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1062 "session", /* name */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1063 newchansess, /* inithandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1064 sesscheckclose, /* checkclosehandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1065 chansessionrequest, /* reqhandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1066 closechansess, /* closehandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1067 };
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1068
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1069
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1070 /* Set up the general chansession environment, in particular child-exit
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1071 * handling */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1072 void svr_chansessinitialise() {
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1073
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1074 struct sigaction sa_chld;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1075
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1076 /* single child process intially */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1077 svr_ses.childpids = (struct ChildPid*)m_malloc(sizeof(struct ChildPid));
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1078 svr_ses.childpids[0].pid = -1; /* unused */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1079 svr_ses.childpids[0].chansess = NULL;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1080 svr_ses.childpidsize = 1;
133 b4cfe976c8e1 Initialise the "lastexit" variable so that we don't get session channels Matt Johnston <matt@ucc.asn.au> parents: 130 diff changeset	1081 svr_ses.lastexit.exitpid = -1; /* Nothing has exited yet */
7 425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1082 sa_chld.sa_handler = sesssigchild_handler;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1083 sa_chld.sa_flags = SA_NOCLDSTOP;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1084 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) {
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1085 dropbear_exit("signal() error");
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1086 }
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1087
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1088 }
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	1089
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1090 /* add a new environment variable, allocating space for the entry */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1091 void addnewvar(const char* param, const char* var) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1092
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	1093 char* newvar = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1094 int plen, vlen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1095
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1096 plen = strlen(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1097 vlen = strlen(var);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1098
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1099 newvar = m_malloc(plen + vlen + 2); /* 2 is for '=' and '\0' */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1100 memcpy(newvar, param, plen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1101 newvar[plen] = '=';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1102 memcpy(&newvar[plen+1], var, vlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1103 newvar[plen+vlen+1] = '\0';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1104 if (putenv(newvar) < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1105 dropbear_exit("environ error");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1106 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1107 }

Mercurial > dropbear

annotate svr-chansession.c @ 314:827f87dfbc22 ucc-axis-hack