dropbear: update to 2015.67
fixes dbclient login into OpenSSH 6.8p1 error: "Bad hostkey signature" reported on irc, replicated with Arch Linux Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de> SVN-Revision: 45493v19.07.3_mercusys_ac12_duma
parent
125b2ced63
commit
af4d04ed36
@ -1,58 +0,0 @@
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# HG changeset patch
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# User Matt Johnston <matt@ucc.asn.au>
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# Date 1407937727 -28800
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# Node ID f7f6c15b0ec30b0def69c9ccbb3dc4eb97374abc
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# Parent 02821319ab1f1208b7ab5de4af82a562c386d40d
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Don't send SSH_MSG_UNIMPLEMENTED for keepalive responses
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diff -r 02821319ab1f -r f7f6c15b0ec3 cli-session.c
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--- a/cli-session.c Fri Aug 08 21:53:47 2014 +0800
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+++ b/cli-session.c Wed Aug 13 21:48:47 2014 +0800
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@@ -73,6 +73,8 @@
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#ifdef ENABLE_CLI_REMOTETCPFWD
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{SSH_MSG_REQUEST_SUCCESS, cli_recv_msg_request_success}, /* client */
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{SSH_MSG_REQUEST_FAILURE, cli_recv_msg_request_failure}, /* client */
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+#else
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+ {SSH_MSG_REQUEST_FAILURE, ignore_recv_msg_request_failure}, /* for keepalive */
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#endif
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{0, 0} /* End */
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};
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diff -r 02821319ab1f -r f7f6c15b0ec3 common-session.c
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--- a/common-session.c Fri Aug 08 21:53:47 2014 +0800
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+++ b/common-session.c Wed Aug 13 21:48:47 2014 +0800
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@@ -394,6 +394,11 @@
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return pos+1;
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}
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+void ignore_recv_msg_request_failure() {
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+ // Do nothing
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+ TRACE(("Ignored msg_request_failure"))
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+}
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+
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static void send_msg_keepalive() {
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CHECKCLEARTOWRITE();
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time_t old_time_idle = ses.last_packet_time_idle;
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diff -r 02821319ab1f -r f7f6c15b0ec3 session.h
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--- a/session.h Fri Aug 08 21:53:47 2014 +0800
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+++ b/session.h Wed Aug 13 21:48:47 2014 +0800
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@@ -47,6 +47,7 @@
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void session_cleanup();
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void send_session_identification();
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void send_msg_ignore();
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+void ignore_recv_msg_request_failure();
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void update_channel_prio();
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diff -r 02821319ab1f -r f7f6c15b0ec3 svr-session.c
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--- a/svr-session.c Fri Aug 08 21:53:47 2014 +0800
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+++ b/svr-session.c Wed Aug 13 21:48:47 2014 +0800
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@@ -58,6 +58,7 @@
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{SSH_MSG_CHANNEL_OPEN, recv_msg_channel_open},
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{SSH_MSG_CHANNEL_EOF, recv_msg_channel_eof},
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{SSH_MSG_CHANNEL_CLOSE, recv_msg_channel_close},
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+ {SSH_MSG_REQUEST_FAILURE, ignore_recv_msg_request_failure}, /* for keepalive */
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#ifdef USING_LISTENERS
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{SSH_MSG_CHANNEL_OPEN_CONFIRMATION, recv_msg_channel_open_confirmation},
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{SSH_MSG_CHANNEL_OPEN_FAILURE, recv_msg_channel_open_failure},
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@ -1,333 +0,0 @@
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# HG changeset patch
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# User Matt Johnston <matt@ucc.asn.au>
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# Date 1408460936 -28800
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# Node ID 0bb16232e7c4162daa43e8618521cf453847ac16
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# Parent 939944f0fca9b2dcdf8470bb24efcc37a3843e8b
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Make keepalive handling more robust, this should now match what OpenSSH does
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diff -r 939944f0fca9 -r 0bb16232e7c4 LICENSE
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--- a/LICENSE Wed Aug 13 22:07:43 2014 +0800
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+++ b/LICENSE Tue Aug 19 23:08:56 2014 +0800
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@@ -8,7 +8,7 @@
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Portions of the client-mode work are (c) 2004 Mihnea Stoenescu, under the
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same license:
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-Copyright (c) 2002-2013 Matt Johnston
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+Copyright (c) 2002-2014 Matt Johnston
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Portions copyright (c) 2004 Mihnea Stoenescu
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All rights reserved.
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diff -r 939944f0fca9 -r 0bb16232e7c4 auth.h
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--- a/auth.h Wed Aug 13 22:07:43 2014 +0800
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+++ b/auth.h Tue Aug 19 23:08:56 2014 +0800
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@@ -106,7 +106,7 @@
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valid */
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unsigned int failcount; /* Number of (failed) authentication attempts.*/
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unsigned authdone : 1; /* 0 if we haven't authed, 1 if we have. Applies for
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- client and server (though has differing [obvious]
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+ client and server (though has differing
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meanings). */
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unsigned perm_warn : 1; /* Server only, set if bad permissions on
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~/.ssh/authorized_keys have already been
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diff -r 939944f0fca9 -r 0bb16232e7c4 channel.h
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--- a/channel.h Wed Aug 13 22:07:43 2014 +0800
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+++ b/channel.h Tue Aug 19 23:08:56 2014 +0800
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@@ -105,6 +105,9 @@
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void setchannelfds(fd_set *readfd, fd_set *writefd);
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void channelio(fd_set *readfd, fd_set *writefd);
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struct Channel* getchannel();
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+/* Returns an arbitrary channel that is in a ready state - not
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+being initialised and no EOF in either direction. NULL if none. */
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+struct Channel* get_any_ready_channel();
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void recv_msg_channel_open();
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void recv_msg_channel_request();
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@@ -128,8 +131,10 @@
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void recv_msg_channel_open_confirmation();
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void recv_msg_channel_open_failure();
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#endif
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+void start_send_channel_request(struct Channel *channel, unsigned char *type);
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void send_msg_request_success();
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void send_msg_request_failure();
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+
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#endif /* _CHANNEL_H_ */
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diff -r 939944f0fca9 -r 0bb16232e7c4 chansession.h
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--- a/chansession.h Wed Aug 13 22:07:43 2014 +0800
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+++ b/chansession.h Tue Aug 19 23:08:56 2014 +0800
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@@ -89,7 +89,6 @@
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#ifdef ENABLE_CLI_NETCAT
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void cli_send_netcat_request();
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#endif
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-void cli_start_send_channel_request(struct Channel *channel, unsigned char *type);
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void svr_chansessinitialise();
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extern const struct ChanType svrchansess;
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diff -r 939944f0fca9 -r 0bb16232e7c4 cli-agentfwd.c
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--- a/cli-agentfwd.c Wed Aug 13 22:07:43 2014 +0800
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+++ b/cli-agentfwd.c Tue Aug 19 23:08:56 2014 +0800
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@@ -234,7 +234,7 @@
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return;
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}
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- cli_start_send_channel_request(channel, "auth-agent-req@openssh.com");
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+ start_send_channel_request(channel, "auth-agent-req@openssh.com");
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/* Don't want replies */
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buf_putbyte(ses.writepayload, 0);
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encrypt_packet();
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diff -r 939944f0fca9 -r 0bb16232e7c4 cli-chansession.c
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--- a/cli-chansession.c Wed Aug 13 22:07:43 2014 +0800
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+++ b/cli-chansession.c Tue Aug 19 23:08:56 2014 +0800
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@@ -92,17 +92,6 @@
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}
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}
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-void cli_start_send_channel_request(struct Channel *channel,
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- unsigned char *type) {
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-
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- CHECKCLEARTOWRITE();
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- buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
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- buf_putint(ses.writepayload, channel->remotechan);
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-
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- buf_putstring(ses.writepayload, type, strlen(type));
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-
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-}
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-
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/* Taken from OpenSSH's sshtty.c:
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* RCSID("OpenBSD: sshtty.c,v 1.5 2003/09/19 17:43:35 markus Exp "); */
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static void cli_tty_setup() {
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@@ -287,7 +276,7 @@
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TRACE(("enter send_chansess_pty_req"))
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- cli_start_send_channel_request(channel, "pty-req");
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+ start_send_channel_request(channel, "pty-req");
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/* Don't want replies */
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buf_putbyte(ses.writepayload, 0);
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@@ -330,7 +319,7 @@
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reqtype = "shell";
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}
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- cli_start_send_channel_request(channel, reqtype);
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+ start_send_channel_request(channel, reqtype);
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/* XXX TODO */
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buf_putbyte(ses.writepayload, 0); /* Don't want replies */
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diff -r 939944f0fca9 -r 0bb16232e7c4 cli-session.c
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--- a/cli-session.c Wed Aug 13 22:07:43 2014 +0800
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+++ b/cli-session.c Tue Aug 19 23:08:56 2014 +0800
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@@ -70,11 +70,15 @@
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{SSH_MSG_USERAUTH_BANNER, recv_msg_userauth_banner}, /* client */
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{SSH_MSG_USERAUTH_SPECIFIC_60, recv_msg_userauth_specific_60}, /* client */
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{SSH_MSG_GLOBAL_REQUEST, recv_msg_global_request_cli},
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+ {SSH_MSG_CHANNEL_SUCCESS, ignore_recv_response},
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+ {SSH_MSG_CHANNEL_FAILURE, ignore_recv_response},
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#ifdef ENABLE_CLI_REMOTETCPFWD
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{SSH_MSG_REQUEST_SUCCESS, cli_recv_msg_request_success}, /* client */
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{SSH_MSG_REQUEST_FAILURE, cli_recv_msg_request_failure}, /* client */
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#else
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- {SSH_MSG_REQUEST_FAILURE, ignore_recv_msg_request_failure}, /* for keepalive */
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+ /* For keepalive */
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+ {SSH_MSG_REQUEST_SUCCESS, ignore_recv_response},
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+ {SSH_MSG_REQUEST_FAILURE, ignore_recv_response},
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#endif
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{0, 0} /* End */
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};
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diff -r 939944f0fca9 -r 0bb16232e7c4 common-channel.c
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--- a/common-channel.c Wed Aug 13 22:07:43 2014 +0800
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+++ b/common-channel.c Tue Aug 19 23:08:56 2014 +0800
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@@ -627,7 +627,12 @@
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&& !channel->close_handler_done) {
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channel->type->reqhandler(channel);
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} else {
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- send_msg_channel_failure(channel);
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+ int wantreply;
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+ buf_eatstring(ses.payload);
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+ wantreply = buf_getbool(ses.payload);
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+ if (wantreply) {
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+ send_msg_channel_failure(channel);
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+ }
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}
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TRACE(("leave recv_msg_channel_request"))
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@@ -1134,3 +1139,30 @@
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buf_putbyte(ses.writepayload, SSH_MSG_REQUEST_FAILURE);
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encrypt_packet();
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}
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+
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+struct Channel* get_any_ready_channel() {
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+ if (ses.chancount == 0) {
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+ return NULL;
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+ }
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+ size_t i;
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+ for (i = 0; i < ses.chansize; i++) {
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+ struct Channel *chan = ses.channels[i];
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+ if (chan
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+ && !(chan->sent_eof || chan->recv_eof)
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+ && !(chan->await_open || chan->initconn)) {
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+ return chan;
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+ }
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+ }
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+ return NULL;
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+}
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+
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+void start_send_channel_request(struct Channel *channel,
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+ unsigned char *type) {
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+
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+ CHECKCLEARTOWRITE();
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+ buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
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+ buf_putint(ses.writepayload, channel->remotechan);
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+
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+ buf_putstring(ses.writepayload, type, strlen(type));
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+
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+}
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diff -r 939944f0fca9 -r 0bb16232e7c4 common-session.c
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--- a/common-session.c Wed Aug 13 22:07:43 2014 +0800
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+++ b/common-session.c Tue Aug 19 23:08:56 2014 +0800
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@@ -394,19 +394,30 @@
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return pos+1;
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}
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-void ignore_recv_msg_request_failure() {
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+void ignore_recv_response() {
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// Do nothing
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- TRACE(("Ignored msg_request_failure"))
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+ TRACE(("Ignored msg_request_response"))
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}
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static void send_msg_keepalive() {
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CHECKCLEARTOWRITE();
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time_t old_time_idle = ses.last_packet_time_idle;
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- /* Try to force a response from the other end. Some peers will
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- reply with SSH_MSG_REQUEST_FAILURE, some will reply with SSH_MSG_UNIMPLEMENTED */
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- buf_putbyte(ses.writepayload, SSH_MSG_GLOBAL_REQUEST);
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- /* A short string */
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- buf_putstring(ses.writepayload, "k@dropbear.nl", 0);
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+
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+ struct Channel *chan = get_any_ready_channel();
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+
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+ if (chan) {
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+ /* Channel requests are preferable, more implementations
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+ handle them than SSH_MSG_GLOBAL_REQUEST */
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+ TRACE(("keepalive channel request %d", chan->index))
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+ start_send_channel_request(chan, DROPBEAR_KEEPALIVE_STRING);
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+ } else {
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+ TRACE(("keepalive global request"))
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+ /* Some peers will reply with SSH_MSG_REQUEST_FAILURE,
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+ some will reply with SSH_MSG_UNIMPLEMENTED, some will exit. */
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+ buf_putbyte(ses.writepayload, SSH_MSG_GLOBAL_REQUEST);
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+ buf_putstring(ses.writepayload, DROPBEAR_KEEPALIVE_STRING,
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+ strlen(DROPBEAR_KEEPALIVE_STRING));
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+ }
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buf_putbyte(ses.writepayload, 1); /* want_reply */
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encrypt_packet();
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@@ -435,7 +446,10 @@
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send_msg_kexinit();
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}
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- if (opts.keepalive_secs > 0) {
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+ if (opts.keepalive_secs > 0 && ses.authstate.authdone) {
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+ /* Avoid sending keepalives prior to auth - those are
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+ not valid pre-auth packet types */
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+
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/* Send keepalives if we've been idle */
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if (now - ses.last_packet_time_any_sent >= opts.keepalive_secs) {
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send_msg_keepalive();
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diff -r 939944f0fca9 -r 0bb16232e7c4 session.h
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--- a/session.h Wed Aug 13 22:07:43 2014 +0800
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+++ b/session.h Tue Aug 19 23:08:56 2014 +0800
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@@ -47,7 +47,7 @@
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void session_cleanup();
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void send_session_identification();
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void send_msg_ignore();
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-void ignore_recv_msg_request_failure();
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+void ignore_recv_response();
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void update_channel_prio();
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diff -r 939944f0fca9 -r 0bb16232e7c4 svr-chansession.c
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--- a/svr-chansession.c Wed Aug 13 22:07:43 2014 +0800
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+++ b/svr-chansession.c Tue Aug 19 23:08:56 2014 +0800
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@@ -53,6 +53,7 @@
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static void closechansess(struct Channel *channel);
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static int newchansess(struct Channel *channel);
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static void chansessionrequest(struct Channel *channel);
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+static int sesscheckclose(struct Channel *channel);
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static void send_exitsignalstatus(struct Channel *channel);
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static void send_msg_chansess_exitstatus(struct Channel * channel,
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@@ -61,6 +62,14 @@
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struct ChanSess * chansess);
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static void get_termmodes(struct ChanSess *chansess);
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+const struct ChanType svrchansess = {
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+ 0, /* sepfds */
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+ "session", /* name */
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|
||||||
+ newchansess, /* inithandler */
|
|
||||||
+ sesscheckclose, /* checkclosehandler */
|
|
||||||
+ chansessionrequest, /* reqhandler */
|
|
||||||
+ closechansess, /* closehandler */
|
|
||||||
+};
|
|
||||||
|
|
||||||
/* required to clear environment */
|
|
||||||
extern char** environ;
|
|
||||||
@@ -968,16 +977,6 @@
|
|
||||||
dropbear_exit("Child failed");
|
|
||||||
}
|
|
||||||
|
|
||||||
-const struct ChanType svrchansess = {
|
|
||||||
- 0, /* sepfds */
|
|
||||||
- "session", /* name */
|
|
||||||
- newchansess, /* inithandler */
|
|
||||||
- sesscheckclose, /* checkclosehandler */
|
|
||||||
- chansessionrequest, /* reqhandler */
|
|
||||||
- closechansess, /* closehandler */
|
|
||||||
-};
|
|
||||||
-
|
|
||||||
-
|
|
||||||
/* Set up the general chansession environment, in particular child-exit
|
|
||||||
* handling */
|
|
||||||
void svr_chansessinitialise() {
|
|
||||||
diff -r 939944f0fca9 -r 0bb16232e7c4 svr-main.c
|
|
||||||
--- a/svr-main.c Wed Aug 13 22:07:43 2014 +0800
|
|
||||||
+++ b/svr-main.c Tue Aug 19 23:08:56 2014 +0800
|
|
||||||
@@ -409,7 +409,7 @@
|
|
||||||
size_t sockpos = 0;
|
|
||||||
int nsock;
|
|
||||||
|
|
||||||
- TRACE(("listensockets: %d to try\n", svr_opts.portcount))
|
|
||||||
+ TRACE(("listensockets: %d to try", svr_opts.portcount))
|
|
||||||
|
|
||||||
for (i = 0; i < svr_opts.portcount; i++) {
|
|
||||||
|
|
||||||
diff -r 939944f0fca9 -r 0bb16232e7c4 svr-session.c
|
|
||||||
--- a/svr-session.c Wed Aug 13 22:07:43 2014 +0800
|
|
||||||
+++ b/svr-session.c Tue Aug 19 23:08:56 2014 +0800
|
|
||||||
@@ -58,7 +58,10 @@
|
|
||||||
{SSH_MSG_CHANNEL_OPEN, recv_msg_channel_open},
|
|
||||||
{SSH_MSG_CHANNEL_EOF, recv_msg_channel_eof},
|
|
||||||
{SSH_MSG_CHANNEL_CLOSE, recv_msg_channel_close},
|
|
||||||
- {SSH_MSG_REQUEST_FAILURE, ignore_recv_msg_request_failure}, /* for keepalive */
|
|
||||||
+ {SSH_MSG_CHANNEL_SUCCESS, ignore_recv_response},
|
|
||||||
+ {SSH_MSG_CHANNEL_FAILURE, ignore_recv_response},
|
|
||||||
+ {SSH_MSG_REQUEST_FAILURE, ignore_recv_response}, /* for keepalive */
|
|
||||||
+ {SSH_MSG_REQUEST_SUCCESS, ignore_recv_response}, /* client */
|
|
||||||
#ifdef USING_LISTENERS
|
|
||||||
{SSH_MSG_CHANNEL_OPEN_CONFIRMATION, recv_msg_channel_open_confirmation},
|
|
||||||
{SSH_MSG_CHANNEL_OPEN_FAILURE, recv_msg_channel_open_failure},
|
|
||||||
diff -r 939944f0fca9 -r 0bb16232e7c4 sysoptions.h
|
|
||||||
--- a/sysoptions.h Wed Aug 13 22:07:43 2014 +0800
|
|
||||||
+++ b/sysoptions.h Tue Aug 19 23:08:56 2014 +0800
|
|
||||||
@@ -257,4 +257,7 @@
|
|
||||||
#define DROPBEAR_LISTEN_BACKLOG MAX_CHANNELS
|
|
||||||
#endif
|
|
||||||
|
|
||||||
+/* Use this string since some implementations might special-case it */
|
|
||||||
+#define DROPBEAR_KEEPALIVE_STRING "keepalive@openssh.com"
|
|
||||||
+
|
|
||||||
/* no include guard for this file */
|
|
||||||
|
|
Loading…
Reference in New Issue