dropbear: svr-session.c annotate

annotate svr-session.c @ 1156:a8f4dade70e5

avoid getpass when not used some systems (like android's bionic) do not provide getpass. you can disable ENABLE_CLI_PASSWORD_AUTH & ENABLE_CLI_INTERACT_AUTH to avoid its use (and rely on pubkey auth), but the link still fails because the support file calls getpass. do not define this func if both of those auth methods are not used.

author	Mike Frysinger <vapier@gentoo.org>
date	Wed, 21 Oct 2015 22:39:55 +0800
parents	43a8ea69b24c
children	64a50eac1030

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 "session.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #include "dbutil.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #include "packet.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "algo.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 #include "buffer.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 #include "dss.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 #include "ssh.h"
858 220f55d540ae rename random.h to dbrandom.h since some OSes have a system random.h Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	33 #include "dbrandom.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 #include "kex.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 #include "channel.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 #include "chansession.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 #include "atomicio.h"
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	38 #include "tcpfwd.h"
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	39 #include "service.h"
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	40 #include "auth.h"
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 22 diff changeset	41 #include "runopts.h"
766 d1575fdc29a6 start on ecdsa keys Matt Johnston <matt@ucc.asn.au> parents: 687 diff changeset	42 #include "crypto_desc.h"
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 static void svr_remoteclosed();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 22 diff changeset	46 struct serversession svr_ses; /* GLOBAL */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	48 static const packettype svr_packettypes[] = {
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	49 {SSH_MSG_CHANNEL_DATA, recv_msg_channel_data},
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	50 {SSH_MSG_CHANNEL_WINDOW_ADJUST, recv_msg_channel_window_adjust},
45 9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	51 {SSH_MSG_USERAUTH_REQUEST, recv_msg_userauth_request}, /* server */
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	52 {SSH_MSG_SERVICE_REQUEST, recv_msg_service_request}, /* server */
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	53 {SSH_MSG_KEXINIT, recv_msg_kexinit},
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	54 {SSH_MSG_KEXDH_INIT, recv_msg_kexdh_init}, /* server */
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	55 {SSH_MSG_NEWKEYS, recv_msg_newkeys},
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	56 {SSH_MSG_GLOBAL_REQUEST, recv_msg_global_request_remotetcp},
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	57 {SSH_MSG_CHANNEL_REQUEST, recv_msg_channel_request},
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	58 {SSH_MSG_CHANNEL_OPEN, recv_msg_channel_open},
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	59 {SSH_MSG_CHANNEL_EOF, recv_msg_channel_eof},
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	60 {SSH_MSG_CHANNEL_CLOSE, recv_msg_channel_close},
970 0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 968 diff changeset	61 {SSH_MSG_CHANNEL_SUCCESS, ignore_recv_response},
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 968 diff changeset	62 {SSH_MSG_CHANNEL_FAILURE, ignore_recv_response},
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 968 diff changeset	63 {SSH_MSG_REQUEST_FAILURE, ignore_recv_response}, /* for keepalive */
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 968 diff changeset	64 {SSH_MSG_REQUEST_SUCCESS, ignore_recv_response}, /* client */
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 98 diff changeset	65 #ifdef USING_LISTENERS
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	66 {SSH_MSG_CHANNEL_OPEN_CONFIRMATION, recv_msg_channel_open_confirmation},
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	67 {SSH_MSG_CHANNEL_OPEN_FAILURE, recv_msg_channel_open_failure},
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 98 diff changeset	68 #endif
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	69 {0, 0} /* End */
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	70 };
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	71
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	72 static const struct ChanType *svr_chantypes[] = {
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 5 diff changeset	73 &svrchansess,
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 98 diff changeset	74 #ifdef ENABLE_SVR_LOCALTCPFWD
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	75 &svr_chan_tcpdirect,
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 98 diff changeset	76 #endif
6 ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 5 diff changeset	77 NULL /* Null termination is mandatory. */
ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 5 diff changeset	78 };
ab00ef513e97 Sorted out the first channel init issues. Matt Johnston <matt@ucc.asn.au> parents: 5 diff changeset	79
733 70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	80 static void
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	81 svr_session_cleanup(void) {
733 70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	82 /* free potential public key options */
70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	83 svr_pubkey_options_cleanup();
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	84
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	85 m_free(svr_ses.addrstring);
1041 3fb883a6aa81 Some additional cleanup functions Matt Johnston <matt@ucc.asn.au> parents: 1040 diff changeset	86 m_free(svr_ses.remotehost);
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	87 m_free(svr_ses.childpids);
1041 3fb883a6aa81 Some additional cleanup functions Matt Johnston <matt@ucc.asn.au> parents: 1040 diff changeset	88 svr_ses.childpidsize = 0;
733 70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	89 }
70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	90
568 005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	91 void svr_session(int sock, int childpipe) {
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	92 char host, port;
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	93 size_t len;
272 3be7ae2e8dfa Only read /dev/random once when the program starts Matt Johnston <matt@ucc.asn.au> parents: 158 diff changeset	94
568 005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	95 common_session_init(sock, sock);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 /* Initialise server specific parts of the session */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 svr_ses.childpipe = childpipe;
667 fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 666 diff changeset	99 #ifdef USE_VFORK
553 8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	100 svr_ses.server_pid = getpid();
8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	101 #endif
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	102 svr_authinitialise();
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	103 chaninitialise(svr_chantypes);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 svr_chansessinitialise();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105
568 005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	106 /* for logging the remote address */
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	107 get_socket_address(ses.sock_in, NULL, NULL, &host, &port, 0);
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	108 len = strlen(host) + strlen(port) + 2;
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	109 svr_ses.addrstring = m_malloc(len);
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	110 snprintf(svr_ses.addrstring, len, "%s:%s", host, port);
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	111 m_free(host);
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	112 m_free(port);
005530560594 Rearrange getaddrstring() etc Matt Johnston <matt@ucc.asn.au> parents: 553 diff changeset	113
572 8fd0ac8c8cab Move remotehost into svr_ses structure since we can't look it up Matt Johnston <matt@ucc.asn.au> parents: 568 diff changeset	114 get_socket_address(ses.sock_in, NULL, NULL,
8fd0ac8c8cab Move remotehost into svr_ses structure since we can't look it up Matt Johnston <matt@ucc.asn.au> parents: 568 diff changeset	115 &svr_ses.remotehost, NULL, 1);
8fd0ac8c8cab Move remotehost into svr_ses structure since we can't look it up Matt Johnston <matt@ucc.asn.au> parents: 568 diff changeset	116
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 /* set up messages etc */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	118 ses.remoteclosed = svr_remoteclosed;
733 70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	119 ses.extra_session_cleanup = svr_session_cleanup;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120
22 c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	121 /* packet handlers */
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	122 ses.packettypes = svr_packettypes;
c1e5d9195402 merge of abac2150ee4f4031a98016241fbd136d24fed127 Matt Johnston <matt@ucc.asn.au> parents: 14 diff changeset	123
35 0ad5fb979f42 set the isserver flag (oops) Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	124 ses.isserver = 1;
0ad5fb979f42 set the isserver flag (oops) Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	125
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 /* We're ready to go now */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 sessinitdone = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 /* exchange identification, version etc */
726 78eda530c000 send out our kexinit packet before blocking to read the SSH version string Matt Johnston <matt@ucc.asn.au> parents: 687 diff changeset	130 send_session_identification();
1083 8e0280986710 Make sure kexfirstinitialise is called early enough Matt Johnston <matt@ucc.asn.au> parents: 1041 diff changeset	131
8e0280986710 Make sure kexfirstinitialise is called early enough Matt Johnston <matt@ucc.asn.au> parents: 1041 diff changeset	132 kexfirstinitialise(); /* initialise the kex state */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 /* start off with key exchange */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 send_msg_kexinit();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	137 /* Run the main for loop. NULL is for the dispatcher - only the client
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	138 * code makes use of it */
1139 43a8ea69b24c Fix problem where auth timeout wasn't checked when waiting for ident Matt Johnston <matt@ucc.asn.au> parents: 1083 diff changeset	139 session_loop(NULL);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 24 diff changeset	141 /* Not reached */
4 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 /* failure exit - format must be <= 100 chars */
5 bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	146 void svr_dropbear_exit(int exitcode, const char* format, va_list param) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 char fmtbuf[300];
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	149 int i;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 if (!sessinitdone) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 /* before session init */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 snprintf(fmtbuf, sizeof(fmtbuf),
876 5bfce5dcd461 Fix disabling DSS key Matt Johnston <matt@ucc.asn.au> parents: 858 diff changeset	154 "Early exit: %s", format);
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	155 } else if (ses.authstate.authdone) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 /* user has authenticated */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 snprintf(fmtbuf, sizeof(fmtbuf),
594 a98a2138364a Improve capitalisation for all logged strings Matt Johnston <matt@ucc.asn.au> parents: 572 diff changeset	158 "Exit (%s): %s",
464 4317be8b7cf9 Make a copy of passwd fields since getpwnam()'s retval isn't safe to keep Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	159 ses.authstate.pw_name, format);
4317be8b7cf9 Make a copy of passwd fields since getpwnam()'s retval isn't safe to keep Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	160 } else if (ses.authstate.pw_name) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 /* we have a potential user */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 snprintf(fmtbuf, sizeof(fmtbuf),
594 a98a2138364a Improve capitalisation for all logged strings Matt Johnston <matt@ucc.asn.au> parents: 572 diff changeset	163 "Exit before auth (user '%s', %d fails): %s",
464 4317be8b7cf9 Make a copy of passwd fields since getpwnam()'s retval isn't safe to keep Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	164 ses.authstate.pw_name, ses.authstate.failcount, format);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 /* before userauth */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 snprintf(fmtbuf, sizeof(fmtbuf),
594 a98a2138364a Improve capitalisation for all logged strings Matt Johnston <matt@ucc.asn.au> parents: 572 diff changeset	168 "Exit before auth: %s", format);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 _dropbear_log(LOG_INFO, fmtbuf, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172
667 fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 666 diff changeset	173 #ifdef USE_VFORK
fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 666 diff changeset	174 /* For uclinux only the main server process should cleanup - we don't want
553 8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	175 * forked children doing that */
8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	176 if (svr_ses.server_pid == getpid())
8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	177 #endif
8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	178 {
8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	179 /* must be after we've done with username etc */
733 70811267715c Run the cleanup handler also when we close due to TCP connection being closed Matt Johnston <matt@ucc.asn.au> parents: 726 diff changeset	180 session_cleanup();
553 8711f20b89ab - For uclinux, only cleanup on exit for the main process. This avoids Matt Johnston <matt@ucc.asn.au> parents: 496 diff changeset	181 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	183 if (svr_opts.hostkey) {
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	184 sign_key_free(svr_opts.hostkey);
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	185 svr_opts.hostkey = NULL;
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	186 }
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	187 for (i = 0; i < DROPBEAR_MAX_PORTS; i++) {
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	188 m_free(svr_opts.addresses[i]);
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	189 m_free(svr_opts.ports[i]);
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	190 }
2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 970 diff changeset	191
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 exit(exitcode);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 /* priority is priority as with syslog() */
5 bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	197 void svr_dropbear_log(int priority, const char* format, va_list param) {
4 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 char printbuf[1024];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 char datestr[20];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 time_t timesec;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 int havetrace = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 vsnprintf(printbuf, sizeof(printbuf), format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 #ifndef DISABLE_SYSLOG
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 22 diff changeset	207 if (svr_opts.usingsyslog) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 syslog(priority, "%s", printbuf);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 /* if we are using DEBUG_TRACE, we want to print to stderr even if
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 * syslog is used, so it is included in error reports */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 #ifdef DEBUG_TRACE
98 297167ef41bd Fix for printing out things with inetd mode when we have DEBUG_TRACE Matt Johnston <matt@ucc.asn.au> parents: 68 diff changeset	215 havetrace = debug_trace;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217
24 469950e86d0f switching to global vars Matt Johnston <matt@ucc.asn.au> parents: 22 diff changeset	218 if (!svr_opts.usingsyslog \|\| havetrace)
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 {
404 a588558bfc94 Fix potential null pointer dereference found by Klokwork Matt Johnston <matt@ucc.asn.au> parents: 272 diff changeset	220 struct tm * local_tm = NULL;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 timesec = time(NULL);
404 a588558bfc94 Fix potential null pointer dereference found by Klokwork Matt Johnston <matt@ucc.asn.au> parents: 272 diff changeset	222 local_tm = localtime(&timesec);
a588558bfc94 Fix potential null pointer dereference found by Klokwork Matt Johnston <matt@ucc.asn.au> parents: 272 diff changeset	223 if (local_tm == NULL
a588558bfc94 Fix potential null pointer dereference found by Klokwork Matt Johnston <matt@ucc.asn.au> parents: 272 diff changeset	224 \|\| strftime(datestr, sizeof(datestr), "%b %d %H:%M:%S",
618 b5cc8878d5ec Properly fix the bug found years ago by Klocwork, refound again. Matt Johnston <matt@ucc.asn.au> parents: 594 diff changeset	225 local_tm) == 0)
404 a588558bfc94 Fix potential null pointer dereference found by Klokwork Matt Johnston <matt@ucc.asn.au> parents: 272 diff changeset	226 {
433 c216212001fc Fix for -pedantic -ansi compilation, change // to /*/, plus some signedness Matt Johnston <matt@ucc.asn.au>* parents: 404 diff changeset	227 /* upon failure, just print the epoch-seconds time. */
479 e3db1f7a2e43 - Split main socket var into ses.sock_in/ses.sock_out in preparation Matt Johnston <matt@ucc.asn.au> parents: 464 diff changeset	228 snprintf(datestr, sizeof(datestr), "%d", (int)timesec);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 fprintf(stderr, "[%d] %s %s\n", getpid(), datestr, printbuf);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 }
5 bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	233
bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	234 /* called when the remote side closes the connection */
bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	235 static void svr_remoteclosed() {
bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	236
479 e3db1f7a2e43 - Split main socket var into ses.sock_in/ses.sock_out in preparation Matt Johnston <matt@ucc.asn.au> parents: 464 diff changeset	237 m_close(ses.sock_in);
e3db1f7a2e43 - Split main socket var into ses.sock_in/ses.sock_out in preparation Matt Johnston <matt@ucc.asn.au> parents: 464 diff changeset	238 m_close(ses.sock_out);
e3db1f7a2e43 - Split main socket var into ses.sock_in/ses.sock_out in preparation Matt Johnston <matt@ucc.asn.au> parents: 464 diff changeset	239 ses.sock_in = -1;
e3db1f7a2e43 - Split main socket var into ses.sock_in/ses.sock_out in preparation Matt Johnston <matt@ucc.asn.au> parents: 464 diff changeset	240 ses.sock_out = -1;
5 bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	241 dropbear_close("Exited normally");
bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	242
bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	243 }
bc6477a6c393 syntactical fixups - it compiles, but channel handling code requires fixing. Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	244

Mercurial > dropbear

annotate svr-session.c @ 1156:a8f4dade70e5