dropbear: svr-chansession.c annotate

annotate svr-chansession.c @ 340:454a34b2dfd1

Fixes from Erik Hovland: cli-authpubkey.c: fix leak of keybuf cli-kex.c: fix leak of fingerprint fp cli-service.c: remove commented out code dropbearkey.c: don't attepmt to free NULL key on failure common-kex.c: only free key if it is initialised keyimport.c: remove dead encrypted-key code don't leak a FILE* loading OpenSSH keys rsa.c, dss.c: check return values for some libtommath functions svr-kex.c: check return value retrieving DH kex mpint svr-tcpfwd.c: fix null-dereference if remote tcp forward request fails tcp-accept.c: don't incorrectly free the tcpinfo var

author	Matt Johnston <matt@ucc.asn.au>
date	Fri, 07 Jul 2006 09:17:18 +0000
parents	d6b8815a9b5e
children	2eb5a8514905 e7c1a77d2921

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
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 /* required to clear environment */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 extern char** environ;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 static int sesscheckclose(struct Channel *channel) {
331 d6b8815a9b5e progress towards exiting on writefd closure rather than Matt Johnston <matt@ucc.asn.au> parents: 315 diff changeset	70 return channel->writefd == -1;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72
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 /* 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	74
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	75 /* 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	76 * 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	77 * 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	78 * 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	79 * 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	80 * single shell spawned (ie the usual case) */
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	81 static void sesssigchild_handler(int UNUSED(dummy)) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 int status;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 pid_t pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 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	87 struct exitinfo *exit = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88
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	89 TRACE(("enter sigchld handler"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 /* find the corresponding chansess */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 for (i = 0; i < svr_ses.childpidsize; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 if (svr_ses.childpids[i].pid == pid) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94
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	95 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	96 break;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 }
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	99
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	100 /* 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	101 * 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	102 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	103 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	104 }
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
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->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	107 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	108 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	109 }
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 (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	111 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	112 #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	113 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	114 #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	115 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	116 #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	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 /* 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	119 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	120 }
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 exit = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 }
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	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
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 sa_chld.sa_handler = sesssigchild_handler;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 sa_chld.sa_flags = SA_NOCLDSTOP;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 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	128 TRACE(("leave sigchld handler"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 /* 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	132 /* XXX server */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 static void send_exitsignalstatus(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 struct ChanSess chansess = (struct ChanSess)channel->typedata;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136
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	137 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	138 if (chansess->exit.exitsignal > 0) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 send_msg_chansess_exitsignal(channel, chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 send_msg_chansess_exitstatus(channel, chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 /* send the exitstatus to the client */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 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	148 struct ChanSess * chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	150 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	151 dropbear_assert(chansess->exit.exitsignal == -1);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 CHECKCLEARTOWRITE();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 buf_putint(ses.writepayload, channel->remotechan);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 buf_putstring(ses.writepayload, "exit-status", 11);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 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	159 buf_putint(ses.writepayload, chansess->exit.exitstatus);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 encrypt_packet();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 }
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 /* 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	166 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	167 struct ChanSess * chansess) {
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 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 char* signame = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	172 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	173 dropbear_assert(chansess->exit.exitsignal > 0);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 CHECKCLEARTOWRITE();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 /* 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	178 * don't send anything */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 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	180 if (signames[i].signal == chansess->exit.exitsignal) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 signame = signames[i].name;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 break;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 if (signame == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 return;
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 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 buf_putint(ses.writepayload, channel->remotechan);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 buf_putstring(ses.writepayload, "exit-signal", 11);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 buf_putbyte(ses.writepayload, 0); /* boolean FALSE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 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	195 buf_putbyte(ses.writepayload, chansess->exit.exitcore);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 buf_putstring(ses.writepayload, "", 0); /* error msg */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 buf_putstring(ses.writepayload, "", 0); /* lang */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 encrypt_packet();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 /* set up a session channel */
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	203 static int newchansess(struct Channel *channel) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 struct ChanSess *chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 208 diff changeset	207 dropbear_assert(channel->typedata == NULL);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 chansess = (struct ChanSess*)m_malloc(sizeof(struct ChanSess));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 chansess->cmd = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 chansess->pid = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 /* pty details */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 chansess->master = -1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 chansess->slave = -1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 chansess->tty = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 chansess->term = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218
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	219 chansess->exit.exitpid = -1;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 channel->typedata = chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 #ifndef DISABLE_X11FWD
9 7f77962de998 - Reworked non-channel fd handling to listener.c Matt Johnston <matt@ucc.asn.au> parents: 7 diff changeset	224 chansess->x11listener = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 chansess->x11authprot = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 chansess->x11authcookie = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 #ifndef DISABLE_AGENTFWD
9 7f77962de998 - Reworked non-channel fd handling to listener.c Matt Johnston <matt@ucc.asn.au> parents: 7 diff changeset	230 chansess->agentlistener = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 chansess->agentfile = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 chansess->agentdir = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	235 return 0;
ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	236
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 /* clean a session channel */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 static void closechansess(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 struct ChanSess *chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 struct logininfo *li;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246 chansess = (struct ChanSess*)channel->typedata;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247
7 425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	248 send_exitsignalstatus(channel);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249
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	250 TRACE(("enter closechansess"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 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	252 TRACE(("leave closechansess: chansess == NULL"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 m_free(chansess->cmd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 m_free(chansess->term);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259 if (chansess->tty) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 /* write the utmp/wtmp login record */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	261 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	262 ses.remotehost, chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 login_logout(li);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 login_free_entry(li);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 pty_release(chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 m_free(chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 #ifndef DISABLE_X11FWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 x11cleanup(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 #endif
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 #ifndef DISABLE_AGENTFWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 agentcleanup(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 /* clear child pid entries */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 for (i = 0; i < svr_ses.childpidsize; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 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	281 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	282 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	283 TRACE(("exitpid = %d", chansess->exit.exitpid))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 svr_ses.childpids[i].pid = -1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 svr_ses.childpids[i].chansess = NULL;
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 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 m_free(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290
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(("leave closechansess"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 /* 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	295 * 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	296 static void chansessionrequest(struct Channel *channel) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	298 unsigned char * type = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 unsigned int typelen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300 unsigned char wantreply;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 int ret = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 struct ChanSess *chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303
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	304 TRACE(("enter chansessionrequest"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306 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	307 wantreply = buf_getbool(ses.payload);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309 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	310 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	311 goto out;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	313
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 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	315 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	316 TRACE(("type is %s", type))
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 (strcmp(type, "window-change") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 ret = sessionwinchange(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 } else if (strcmp(type, "shell") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321 ret = sessioncommand(channel, chansess, 0, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 } else if (strcmp(type, "pty-req") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 ret = sessionpty(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324 } else if (strcmp(type, "exec") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 ret = sessioncommand(channel, chansess, 1, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 } else if (strcmp(type, "subsystem") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327 ret = sessioncommand(channel, chansess, 1, 1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 #ifndef DISABLE_X11FWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 } else if (strcmp(type, "x11-req") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330 ret = x11req(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332 #ifndef DISABLE_AGENTFWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333 } else if (strcmp(type, "[email protected]") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 ret = agentreq(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336 } else if (strcmp(type, "signal") == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337 ret = sessionsignal(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	338 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339 /* etc, todo "env", "subsystem" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	340 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342 out:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	343
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344 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	345 if (ret == DROPBEAR_SUCCESS) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346 send_msg_channel_success(channel);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	347 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	348 send_msg_channel_failure(channel);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	349 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	350 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	351
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	352 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	353 TRACE(("leave chansessionrequest"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	354 }
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 /* 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	358 static int sessionsignal(struct ChanSess *chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	359
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	360 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	361 unsigned char* signame = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	364 if (chansess->pid == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365 /* haven't got a process pid yet */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	366 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	367 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	368
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369 signame = buf_getstring(ses.payload, NULL);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	371 i = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	372 while (signames[i].name != 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	373 if (strcmp(signames[i].name, signame) == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	374 sig = signames[i].signal;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 break;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	376 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	377 i++;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	378 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	379
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	380 m_free(signame);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	381
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	382 if (sig == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	383 /* failed */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	384 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	385 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	386
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	387 if (kill(chansess->pid, sig) < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	388 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	389 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	390
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	391 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	392 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	393
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	394 /* 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	395 * client. Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	396 static int sessionwinchange(struct ChanSess *chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	397
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	398 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	399
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	400 if (chansess->master < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	401 /* haven't got a pty yet */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402 return DROPBEAR_FAILURE;
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
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	405 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	406 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	407 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	408 termh = buf_getint(ses.payload);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	409
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	410 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	411
315 3eea61bd9993 send success message for successful window change request Matt Johnston <matt@ucc.asn.au> parents: 279 diff changeset	412 return DROPBEAR_SUCCESS;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	413 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	414
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	415 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	416
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	417 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	418 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	419 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	420 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	421 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	422
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	423 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	424
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	425 /* Term modes */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	426 /* 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	427 * 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	428 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	429 return;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	430 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	431
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	432 len = buf_getint(ses.payload);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	433 TRACE(("term mode str %d p->l %d p->p %d",
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	434 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	435 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	436 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	437 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	438
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	439 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	440 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	441 return;
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	442 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	443
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	444 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	445
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	446 /* 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	447 * 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	448 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	449
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	450 /* 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	451 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	452 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	453 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	454 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	455
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	456
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	457 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	458
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	459 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	460 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	461
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	462 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	463 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	464 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	465
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	466 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	467 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	468 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	469 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	470 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	471 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	472 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	473
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	474 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	475 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	476 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	477 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	478 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	479 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	480 break;
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 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	483 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	484 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	485 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	486 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	487 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	488 break;
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 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	491 if (value) {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	492 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	493 } else {
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	494 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	495 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	496 break;
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 }
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 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	501 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	502 }
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	503 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	504 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	505
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	506 /* 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	507 * 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	508 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	509 static int sessionpty(struct ChanSess * chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	510
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	511 unsigned int termlen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	512 unsigned char namebuf[65];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	513
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	514 TRACE(("enter sessionpty"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	515 chansess->term = buf_getstring(ses.payload, &termlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	516 if (termlen > MAX_TERM_LEN) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	517 /* 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	518 TRACE(("leave sessionpty: term len too long"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	519 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	520 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	521
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	522 /* allocate the pty */
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	523 if (chansess->master != -1) {
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	524 dropbear_exit("multiple pty requests");
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 96 diff changeset	525 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	526 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	527 TRACE(("leave sessionpty: failed to allocate pty"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	528 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	529 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	530
11 f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 9 diff changeset	531 chansess->tty = (char*)m_strdup(namebuf);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	532 if (!chansess->tty) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	533 dropbear_exit("out of memory"); /* TODO disconnect */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	534 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	535
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	536 pty_setowner(ses.authstate.pw, chansess->tty);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	537
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	538 /* 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	539 sessionwinchange(chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	540
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	541 /* 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	542 get_termmodes(chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	543
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	544 TRACE(("leave sessionpty"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	545 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	546 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	547
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	548 /* 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	549 * 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	550 * noptycommand or ptycommand as appropriate.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	551 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	552 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	553 int iscmd, int issubsys) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	554
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	555 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	556 int ret;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	557
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	558 TRACE(("enter sessioncommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	559
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	560 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	561 /* 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	562 * 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	563 * from sftp to scp */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	564 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	565 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	566
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	567 if (iscmd) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	568 /* "exec" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	569 chansess->cmd = buf_getstring(ses.payload, &cmdlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	570
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	571 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	572 m_free(chansess->cmd);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	573 /* TODO - send error - too long ? */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	574 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	575 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	576 if (issubsys) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	577 #ifdef SFTPSERVER_PATH
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	578 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	579 m_free(chansess->cmd);
11 f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 9 diff changeset	580 chansess->cmd = m_strdup(SFTPSERVER_PATH);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	581 } else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	582 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	583 {
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	584 m_free(chansess->cmd);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	585 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	586 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	587 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	588 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	589
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	590 if (chansess->term == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	591 /* 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	592 ret = noptycommand(channel, chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	593 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	594 /* want 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	595 ret = ptycommand(channel, chansess);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	596 }
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	597
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	598 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	599 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	600 }
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	601 return ret;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	602 }
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 /* 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	605 * pty.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	606 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	607 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	608
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	609 int infds[2];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	610 int outfds[2];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	611 int errfds[2];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	612 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	613 unsigned int i;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	614
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	615 TRACE(("enter noptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	616
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	617 /* redirect stdin/stdout/stderr */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	618 if (pipe(infds) != 0)
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 if (pipe(outfds) != 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	621 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	622 if (pipe(errfds) != 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	623 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	624
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	625 #ifdef __uClinux__
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	626 pid = vfork();
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	627 #else
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	628 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	629 #endif
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	630
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	631 if (pid < 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	632 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	633
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	634 if (!pid) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	635 /* child */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	636
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	637 /* redirect stdin/stdout */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	638 #define FDIN 0
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	639 #define FDOUT 1
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	640 if ((dup2(infds[FDIN], STDIN_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	641 (dup2(outfds[FDOUT], STDOUT_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	642 (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	643 TRACE(("leave noptycommand: error redirecting FDs"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	644 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	645 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	646
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	647 close(infds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	648 close(infds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	649 close(outfds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	650 close(outfds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	651 close(errfds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	652 close(errfds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	653
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	654 execchild(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	655 /* not reached */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	656
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	657 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	658 /* 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	659 TRACE(("continue noptycommand: parent"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	660 chansess->pid = pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	661
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	662 addchildpid(chansess, pid);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	663
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	664 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	665 /* 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	666 * 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	667 * 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	668 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	669 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	670 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	671 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	672 }
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	673 }
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	674 }
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	675
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	676
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	677 close(infds[FDIN]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	678 close(outfds[FDOUT]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	679 close(errfds[FDOUT]);
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	680 channel->writefd = infds[FDOUT];
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	681 channel->readfd = outfds[FDIN];
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	682 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	683 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	684 ses.maxfd = MAX(ses.maxfd, channel->readfd);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	685 ses.maxfd = MAX(ses.maxfd, channel->errfd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	686
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	687 setnonblocking(channel->readfd);
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	688 setnonblocking(channel->writefd);
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	689 setnonblocking(channel->errfd);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	690
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	691 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	692 #undef FDIN
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	693 #undef FDOUT
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	694
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	695 TRACE(("leave noptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	696 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	697 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	698
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	699 /* 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	700 * redirection as appropriate.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	701 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	702 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	703
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	704 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	705 struct logininfo *li = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	706 #ifdef DO_MOTD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	707 buffer * motdbuf = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	708 int len;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	709 struct stat sb;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	710 char *hushpath = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	711 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	712
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	713 TRACE(("enter ptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	714
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	715 /* we need to have a pty allocated */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	716 if (chansess->master == -1 \|\| chansess->tty == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	717 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	718 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	719 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	720
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	721 #ifdef __uClinux__
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	722 pid = vfork();
02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	723 #else
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	724 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	725 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	726 if (pid < 0)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	727 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	728
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	729 if (pid == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	730 /* child */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	731
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	732 /* redirect stdin/stdout/stderr */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	733 close(chansess->master);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	734
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	735 pty_make_controlling_tty(&chansess->slave, chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	736
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	737 if ((dup2(chansess->slave, STDIN_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	738 (dup2(chansess->slave, STDERR_FILENO) < 0) \|\|
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	739 (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	740 TRACE(("leave ptycommand: error redirecting filedesc"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	741 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	742 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	743
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	744 close(chansess->slave);
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 /* 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	747 * terminal used for stdout with the dup2 above */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	748 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	749 ses.remotehost, chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	750 login_login(li);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	751 login_free_entry(li);
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 m_free(chansess->tty);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	754
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	755 #ifdef DO_MOTD
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	756 if (svr_opts.domotd) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	757 /* don't show the motd if ~/.hushlogin exists */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	758
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	759 /* 11 == strlen("/hushlogin\0") */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	760 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	761
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	762 hushpath = m_malloc(len);
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	763 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	764
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	765 if (stat(hushpath, &sb) < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	766 /* more than a screenful is stupid IMHO */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	767 motdbuf = buf_new(80 * 25);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	768 if (buf_readfile(motdbuf, MOTD_FILENAME) == DROPBEAR_SUCCESS) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	769 buf_setpos(motdbuf, 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	770 while (motdbuf->pos != motdbuf->len) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	771 len = motdbuf->len - motdbuf->pos;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	772 len = write(STDOUT_FILENO,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	773 buf_getptr(motdbuf, len), len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	774 buf_incrpos(motdbuf, len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	775 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	776 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	777 buf_free(motdbuf);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	778 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	779 m_free(hushpath);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	780 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	781 #endif /* DO_MOTD */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	782
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	783 execchild(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	784 /* not reached */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	785
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	786 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	787 /* 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	788 TRACE(("continue ptycommand: parent"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	789 chansess->pid = pid;
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 /* add a child pid */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	792 addchildpid(chansess, pid);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	793
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	794 close(chansess->slave);
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	795 channel->writefd = chansess->master;
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 241 diff changeset	796 channel->readfd = chansess->master;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	797 /* don't need to set stderr here */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	798 ses.maxfd = MAX(ses.maxfd, chansess->master);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	799
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	800 setnonblocking(chansess->master);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	801
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	802 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	803
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	804 TRACE(("leave ptycommand"))
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	805 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	806 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	807
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	808 /* 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	809 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	810
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	811 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	812 for (i = 0; i < svr_ses.childpidsize; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	813 if (svr_ses.childpids[i].pid == -1) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	814 break;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	815 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	816 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	817
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	818 /* need to increase size */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	819 if (i == svr_ses.childpidsize) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	820 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	821 sizeof(struct ChildPid) * (svr_ses.childpidsize+1));
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	822 svr_ses.childpidsize++;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	823 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	824
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	825 svr_ses.childpids[i].pid = pid;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	826 svr_ses.childpids[i].chansess = chansess;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	827
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
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	830 /* 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	831 * the command/shell. This function does not return. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	832 static void execchild(struct ChanSess *chansess) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	833
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	834 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	835 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	836 char * baseshell = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	837 unsigned int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	838
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	839 /* 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	840 * 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	841 #ifndef __uClinux__
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	842 /* wipe the hostkey */
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	843 sign_key_free(svr_opts.hostkey);
469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	844 svr_opts.hostkey = NULL;
4 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 /* 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	847 reseedrandom();
273 02a80ce2ead4 Merge of the uClinux-dist patch, should work in inetd mode Matt Johnston <matt@ucc.asn.au> parents: 264 diff changeset	848 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	849
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	850 /* close file descriptors except stdin/stdout/stderr
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	851 * 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	852 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	853 m_close(i);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	854 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	855
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	856 /* clear environment */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	857 /* 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	858 * 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	859 #ifndef DEBUG_VALGRIND
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	860 #ifdef HAVE_CLEARENV
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	861 clearenv();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	862 #else /* don't HAVE_CLEARENV */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	863 /* Yay for posix. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	864 if (environ) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	865 environ[0] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	866 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	867 #endif /* HAVE_CLEARENV */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	868 #endif /* DEBUG_VALGRIND */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	869
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	870 /* We can only change uid/gid as root ... */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	871 if (getuid() == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	872
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	873 if ((setgid(ses.authstate.pw->pw_gid) < 0) \|\|
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	874 (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	875 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	876 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	877 }
675f7bf3c391 Seperate out exit errors from setgid()/initgroups(), and errors from setuid(), Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	878 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	879 dropbear_exit("error changing user");
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 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	882 /* ... 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	883 * need to */
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 /* 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	886 * 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	887 * 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	888 * 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	889 if (getuid() != ses.authstate.pw->pw_uid) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	890 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	891 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	892 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	893
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	894 /* an empty shell should be interpreted as "/bin/sh" */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	895 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	896 usershell = "/bin/sh";
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	897 } else {
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	898 usershell = ses.authstate.pw->pw_shell;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	899 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	900
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	901 /* set env vars */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	902 addnewvar("USER", ses.authstate.pw->pw_name);
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	903 addnewvar("LOGNAME", ses.authstate.pw->pw_name);
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	904 addnewvar("HOME", ses.authstate.pw->pw_dir);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	905 addnewvar("SHELL", usershell);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	906 if (chansess->term != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	907 addnewvar("TERM", chansess->term);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	908 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	909
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	910 /* change directory */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	911 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	912 dropbear_exit("error changing directory");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	913 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	914
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	915 #ifndef DISABLE_X11FWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	916 /* set up X11 forwarding if enabled */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	917 x11setauth(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	918 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	919 #ifndef DISABLE_AGENTFWD
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	920 /* set up agent env variable */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	921 agentset(chansess);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	922 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	923
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	924 /* 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	925 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	926 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	927 }
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	928
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	929 baseshell = basename(usershell);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	930
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	931 if (chansess->cmd != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	932 argv[0] = baseshell;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	933 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	934 /* 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	935 int len = strlen(baseshell) + 2; /* 2 for "-" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	936 argv[0] = (char*)m_malloc(len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	937 snprintf(argv[0], len, "-%s", baseshell);
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
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	940 if (chansess->cmd != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	941 argv[1] = "-c";
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	942 argv[2] = chansess->cmd;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	943 argv[3] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	944 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	945 /* construct a shell of the form "-bash" etc */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	946 argv[1] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	947 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	948
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	949 execv(usershell, argv);
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 /* only reached on error */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	952 dropbear_exit("child failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	953 }
9 7f77962de998 - Reworked non-channel fd handling to listener.c Matt Johnston <matt@ucc.asn.au> parents: 7 diff changeset	954
7 425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	955 const struct ChanType svrchansess = {
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	956 0, /* sepfds */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	957 "session", /* name */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	958 newchansess, /* inithandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	959 sesscheckclose, /* checkclosehandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	960 chansessionrequest, /* reqhandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	961 closechansess, /* closehandler */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	962 };
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	963
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	964
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	965 /* 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	966 * handling */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	967 void svr_chansessinitialise() {
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	968
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	969 struct sigaction sa_chld;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	970
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	971 /* single child process intially */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	972 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	973 svr_ses.childpids[0].pid = -1; /* unused */
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	974 svr_ses.childpids[0].chansess = NULL;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	975 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	976 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	977 sa_chld.sa_handler = sesssigchild_handler;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	978 sa_chld.sa_flags = SA_NOCLDSTOP;
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	979 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) {
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	980 dropbear_exit("signal() error");
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	981 }
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	982
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	983 }
425ed5c20157 Chantype handling is sorted Matt Johnston <matt@ucc.asn.au> parents: 6 diff changeset	984
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	985 /* 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	986 void addnewvar(const char* param, const char* var) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	987
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	988 char* newvar = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	989 int plen, vlen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	990
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	991 plen = strlen(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	992 vlen = strlen(var);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	993
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	994 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	995 memcpy(newvar, param, plen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	996 newvar[plen] = '=';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	997 memcpy(&newvar[plen+1], var, vlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	998 newvar[plen+vlen+1] = '\0';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	999 if (putenv(newvar) < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1000 dropbear_exit("environ error");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1001 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1002 }

Mercurial > dropbear

annotate svr-chansession.c @ 340:454a34b2dfd1