dropbear: cli-agentfwd.c annotate

annotate cli-agentfwd.c @ 667:fc7ae88e63b3

Rename HAVE_FORK to USE_VFORK It makes it a bit more obvious why there's a test there since HAVE_FORK is the normal case.

author	Matt Johnston <matt@ucc.asn.au>
date	Mon, 09 Apr 2012 20:35:13 +0800
parents	5e8d84f3ee72
children	0fd32a552ea5

rev	line source
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * Dropbear - a SSH2 server
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * Copyright (c) 2005 Matt Johnston
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 * All rights reserved.
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 *
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Permission is hereby granted, free of charge, to any person obtaining a copy
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * of this software and associated documentation files (the "Software"), to deal
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * in the Software without restriction, including without limitation the rights
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * copies of the Software, and to permit persons to whom the Software is
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * furnished to do so, subject to the following conditions:
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 *
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * The above copyright notice and this permission notice shall be included in
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 * all copies or substantial portions of the Software.
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 *
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ca7e76d981d9 - progress towards client agent forwarding 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
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * SOFTWARE. */
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 #include "includes.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #ifdef ENABLE_CLI_AGENTFWD
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "agentfwd.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 #include "session.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 #include "ssh.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 #include "dbutil.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 #include "chansession.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 #include "channel.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 #include "packet.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 #include "buffer.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 #include "random.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 #include "listener.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 #include "runopts.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 #include "atomicio.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 #include "signkey.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 #include "auth.h"
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	44 /* The protocol implemented to talk to OpenSSH's SSH2 agent is documented in
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	45 PROTOCOL.agent in recent OpenSSH source distributions (5.1p1 has it). */
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	46
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 static int new_agent_chan(struct Channel * channel);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48
547 cf376c696dfc Make it compile, update for changes in channel structure. Matt Johnston <matt@ucc.asn.au> parents: 225 diff changeset	49 const struct ChanType cli_chan_agent = {
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 0, /* sepfds */
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 "[email protected]",
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 new_agent_chan,
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 NULL,
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 NULL,
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 NULL
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 };
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 static int connect_agent() {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 int fd = -1;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 char* agent_sock = NULL;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 agent_sock = getenv("SSH_AUTH_SOCK");
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 if (agent_sock == NULL)
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 return -1;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 fd = connect_unix(agent_sock);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
563 12fc5b342dc0 - Don't print warning if SSH_AUTH_SOCK is unset Matt Johnston <matt@ucc.asn.au> parents: 562 diff changeset	69 if (fd < 0) {
12fc5b342dc0 - Don't print warning if SSH_AUTH_SOCK is unset Matt Johnston <matt@ucc.asn.au> parents: 562 diff changeset	70 dropbear_log(LOG_INFO, "Failed to connect to agent");
12fc5b342dc0 - Don't print warning if SSH_AUTH_SOCK is unset Matt Johnston <matt@ucc.asn.au> parents: 562 diff changeset	71 }
12fc5b342dc0 - Don't print warning if SSH_AUTH_SOCK is unset Matt Johnston <matt@ucc.asn.au> parents: 562 diff changeset	72
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 return fd;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 // handle a request for a connection to the locally running ssh-agent
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 // or forward.
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 static int new_agent_chan(struct Channel * channel) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 int fd = -1;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 if (!cli_opts.agent_fwd)
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 return SSH_OPEN_ADMINISTRATIVELY_PROHIBITED;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 fd = connect_agent();
610 3c5f631358a0 Fix check of wrong variable found by Klocwork Matt Johnston <matt@ucc.asn.au> parents: 563 diff changeset	86 if (fd < 0) {
562 a900cb1c53fa - Handle failure to connect to forwarding socket Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	87 return SSH_OPEN_CONNECT_FAILED;
a900cb1c53fa - Handle failure to connect to forwarding socket Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	88 }
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 setnonblocking(fd);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 ses.maxfd = MAX(ses.maxfd, fd);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93
547 cf376c696dfc Make it compile, update for changes in channel structure. Matt Johnston <matt@ucc.asn.au> parents: 225 diff changeset	94 channel->readfd = fd;
cf376c696dfc Make it compile, update for changes in channel structure. Matt Johnston <matt@ucc.asn.au> parents: 225 diff changeset	95 channel->writefd = fd;
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 // success
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 return 0;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 /* Sends a request to the agent, returning a newly allocated buffer
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 * with the response */
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	103 /* This function will block waiting for a response - it will
61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	104 * only be used by client authentication (not for forwarded requests)
61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	105 * won't cause problems for interactivity. */
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 /* Packet format (from draft-ylonen)
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 4 bytes Length, msb first. Does not include length itself.
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 1 byte Packet type. The value 255 is reserved for future extensions.
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 data Any data, depending on packet type. Encoding as in the ssh packet
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	110 protocol.
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 */
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	112 static buffer * agent_request(unsigned char type, buffer *data) {
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 buffer * payload = NULL;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 buffer * inbuf = NULL;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 size_t readlen = 0;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 ssize_t ret;
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	118 const int fd = cli_opts.agent_fd;
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	119 unsigned int data_len = 0;
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	120 if (data)
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	121 {
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	122 data_len = data->len;
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	123 }
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	125 payload = buf_new(4 + 1 + data_len);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	126
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	127 buf_putint(payload, 1 + data_len);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 buf_putbyte(payload, type);
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	129 if (data) {
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	130 buf_putbytes(payload, data->data, data->len);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	131 }
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	132 buf_setpos(payload, 0);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 ret = atomicio(write, fd, buf_getptr(payload, payload->len), payload->len);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 if ((size_t)ret != payload->len) {
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	136 TRACE(("write failed fd %d for agent_request, %s", fd, strerror(errno)))
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 goto out;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 buf_free(payload);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 payload = NULL;
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	142 TRACE(("Wrote out bytes for agent_request"))
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 /* Now we read the response */
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 inbuf = buf_new(4);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 ret = atomicio(read, fd, buf_getwriteptr(inbuf, 4), 4);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 if (ret != 4) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 TRACE(("read of length failed for agent_request"))
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 goto out;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 }
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	150 buf_setpos(inbuf, 0);
61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	151 buf_setlen(inbuf, ret);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 readlen = buf_getint(inbuf);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 if (readlen > MAX_AGENT_REPLY) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 TRACE(("agent reply is too big"));
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 goto out;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 }
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	158
61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	159 TRACE(("agent_request readlen is %d", readlen))
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 buf_resize(inbuf, readlen);
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	162 buf_setpos(inbuf, 0);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 ret = atomicio(read, fd, buf_getwriteptr(inbuf, readlen), readlen);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 if ((size_t)ret != readlen) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 TRACE(("read of data failed for agent_request"))
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 goto out;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 }
550 61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	168 buf_incrwritepos(inbuf, readlen);
61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	169 buf_setpos(inbuf, 0);
61c3513825b0 Talking to the agent works now. Can't interpret the pubkeys. Matt Johnston <matt@ucc.asn.au> parents: 547 diff changeset	170 TRACE(("agent_request success, length %d", readlen))
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 out:
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 if (payload)
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 buf_free(payload);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 return inbuf;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	179 static void agent_get_key_list(m_list * ret_list)
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180 {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 buffer * inbuf = NULL;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 unsigned int num = 0;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 unsigned char packet_type;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 unsigned int i;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 int ret;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	187 inbuf = agent_request(SSH2_AGENTC_REQUEST_IDENTITIES, NULL);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 if (!inbuf) {
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	189 TRACE(("agent_request failed returning identities"))
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 goto out;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 /* The reply has a format of:
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	194 byte SSH2_AGENT_IDENTITIES_ANSWER
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	195 uint32 num_keys
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	196 Followed by zero or more consecutive keys, encoded as:
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	197 string key_blob
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	198 string key_comment
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 */
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 packet_type = buf_getbyte(inbuf);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 if (packet_type != SSH2_AGENT_IDENTITIES_ANSWER) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 goto out;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 num = buf_getint(inbuf);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 for (i = 0; i < num; i++) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 sign_key * pubkey = NULL;
547 cf376c696dfc Make it compile, update for changes in channel structure. Matt Johnston <matt@ucc.asn.au> parents: 225 diff changeset	208 int key_type = DROPBEAR_SIGNKEY_ANY;
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	209 buffer * key_buf;
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	211 /* each public key is encoded as a string */
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	212 key_buf = buf_getstringbuf(inbuf);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 pubkey = new_sign_key();
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	214 ret = buf_get_pub_key(key_buf, pubkey, &key_type);
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	215 buf_free(key_buf);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 if (ret != DROPBEAR_SUCCESS) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 /* This is slack, properly would cleanup vars etc */
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 dropbear_exit("Bad pubkey received from agent");
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 }
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	220 pubkey->type = key_type;
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	221 pubkey->source = SIGNKEY_SOURCE_AGENT;
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	223 list_append(ret_list, pubkey);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	225 /* We'll ignore the comment for now. might want it later.*/
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 buf_eatstring(inbuf);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 out:
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 if (inbuf) {
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 buf_free(inbuf);
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 inbuf = NULL;
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235
560 52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	236 void cli_setup_agent(struct Channel *channel) {
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	237 if (!getenv("SSH_AUTH_SOCK")) {
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	238 return;
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	239 }
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	240
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	241 cli_start_send_channel_request(channel, "[email protected]");
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	242 /* Don't want replies */
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	243 buf_putbyte(ses.writepayload, 0);
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	244 encrypt_packet();
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	245 }
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	246
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	247 /* Returned keys are prepended to ret_list, which will
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	248 be updated. */
560 52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 552 diff changeset	249 void cli_load_agent_keys(m_list *ret_list) {
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	250 /* agent_fd will be closed after successful auth */
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	251 cli_opts.agent_fd = connect_agent();
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	252 if (cli_opts.agent_fd < 0) {
547 cf376c696dfc Make it compile, update for changes in channel structure. Matt Johnston <matt@ucc.asn.au> parents: 225 diff changeset	253 return;
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 }
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	256 agent_get_key_list(ret_list);
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 }
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	258
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	259 void agent_buf_sign(buffer sigblob, sign_key key,
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	260 const unsigned char *data, unsigned int len) {
612 1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	261 buffer *request_data = NULL;
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	262 buffer *response = NULL;
653 5e8d84f3ee72 - Remove unused variable/code Matt Johnston <matt@ucc.asn.au> parents: 612 diff changeset	263 unsigned int siglen;
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	264 int packet_type;
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	265
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	266 /* Request format
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	267 byte SSH2_AGENTC_SIGN_REQUEST
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	268 string key_blob
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	269 string data
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	270 uint32 flags
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	271 */
612 1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	272 request_data = buf_new(MAX_PUBKEY_SIZE + len + 12);
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	273 buf_put_pub_key(request_data, key, key->type);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	274
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	275 buf_putstring(request_data, data, len);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	276 buf_putint(request_data, 0);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	277
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	278 response = agent_request(SSH2_AGENTC_SIGN_REQUEST, request_data);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	279
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	280 if (!response) {
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	281 goto fail;
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	282 }
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	283
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	284 packet_type = buf_getbyte(response);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	285 if (packet_type != SSH2_AGENT_SIGN_RESPONSE) {
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	286 goto fail;
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	287 }
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	288
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	289 /* Response format
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	290 byte SSH2_AGENT_SIGN_RESPONSE
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	291 string signature_blob
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	292 */
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	293 siglen = buf_getint(response);
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	294 buf_putbytes(sigblob, buf_getptr(response, siglen), siglen);
612 1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	295 goto cleanup;
552 de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	296
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	297 fail:
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	298 /* XXX don't fail badly here. instead propagate a failure code back up to
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	299 the cli auth pubkey code, and just remove this key from the list of
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	300 ones to try. */
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	301 dropbear_exit("Agent failed signing key");
612 1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	302
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	303 cleanup:
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	304 if (request_data) {
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	305 buf_free(request_data);
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	306 }
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	307 if (response) {
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	308 buf_free(response);
1aee049681bd Tidy error handling and get rid of some commented out code Matt Johnston <matt@ucc.asn.au> parents: 610 diff changeset	309 }
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 550 diff changeset	310 }
225 ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311
ca7e76d981d9 - progress towards client agent forwarding Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312 #endif

Mercurial > dropbear

annotate cli-agentfwd.c @ 667:fc7ae88e63b3