void cli_connected(int result, int sock, void* userdata, const char *errstring)
{
struct sshsession *myses = userdata;
if (result == DROPBEAR_FAILURE) {
dropbear_exit("Connect failed: %s", errstring);
}
myses->sock_in = myses->sock_out = sock;
update_channel_prio();
}
/* called only at the start of a session, set up initial state */
void common_session_init(int sock_in, int sock_out) {
time_t now;
#ifdef DEBUG_TRACE
debug_start_net();
#endif
TRACE(("enter session_init"))
ses.sock_in = sock_in;
ses.sock_out = sock_out;
ses.maxfd = MAX(sock_in, sock_out);
if (sock_in >= 0) {
setnonblocking(sock_in);
}
if (sock_out >= 0) {
setnonblocking(sock_out);
}
ses.socket_prio = DROPBEAR_PRIO_DEFAULT;
/* Sets it to lowdelay */
update_channel_prio();
now = monotonic_now();
ses.connect_time = now;
ses.last_packet_time_keepalive_recv = now;
ses.last_packet_time_idle = now;
ses.last_packet_time_any_sent = 0;
ses.last_packet_time_keepalive_sent = 0;
if (pipe(ses.signal_pipe) < 0) {
dropbear_exit("Signal pipe failed");
}
setnonblocking(ses.signal_pipe[0]);
setnonblocking(ses.signal_pipe[1]);
ses.maxfd = MAX(ses.maxfd, ses.signal_pipe[0]);
ses.maxfd = MAX(ses.maxfd, ses.signal_pipe[1]);
ses.writepayload = buf_new(TRANS_MAX_PAYLOAD_LEN);
ses.transseq = 0;
ses.readbuf = NULL;
ses.payload = NULL;
ses.recvseq = 0;
initqueue(&ses.writequeue);
ses.requirenext = SSH_MSG_KEXINIT;
ses.dataallowed = 1; /* we can send data until we actually
send the SSH_MSG_KEXINIT */
ses.ignorenext = 0;
ses.lastpacket = 0;
ses.reply_queue_head = NULL;
ses.reply_queue_tail = NULL;
/* set all the algos to none */
ses.keys = (struct key_context*)m_malloc(sizeof(struct key_context));
ses.newkeys = NULL;
ses.keys->recv.algo_crypt = &dropbear_nocipher;
ses.keys->trans.algo_crypt = &dropbear_nocipher;
ses.keys->recv.crypt_mode = &dropbear_mode_none;
ses.keys->trans.crypt_mode = &dropbear_mode_none;
ses.keys->recv.algo_mac = &dropbear_nohash;
ses.keys->trans.algo_mac = &dropbear_nohash;
ses.keys->algo_kex = NULL;
ses.keys->algo_hostkey = -1;
ses.keys->recv.algo_comp = DROPBEAR_COMP_NONE;
ses.keys->trans.algo_comp = DROPBEAR_COMP_NONE;
#ifndef DISABLE_ZLIB
ses.keys->recv.zstream = NULL;
ses.keys->trans.zstream = NULL;
#endif
/* key exchange buffers */
ses.session_id = NULL;
ses.kexhashbuf = NULL;
ses.transkexinit = NULL;
ses.dh_K = NULL;
ses.remoteident = NULL;
ses.chantypes = NULL;
ses.allowprivport = 0;
TRACE(("leave session_init"))
}
