extern void x11_override_throttle(Socket s, int enable);
extern char *pfd_newconnect(Socket * s, char *hostname, int port, void *c);
-extern char *pfd_addforward(char *desthost, int destport, int port);
+extern char *pfd_addforward(char *desthost, int destport, int port,
+ void *backhandle);
extern void pfd_close(Socket s);
extern int pfd_send(Socket s, char *data, int len);
extern void pfd_confirm(Socket s);
&ssh_sha1_buggy, &ssh_md5, &ssh_mac_none
};
-static void ssh_comp_none_init(void)
+static void *ssh_comp_none_init(void)
+{
+ return NULL;
+}
+static void ssh_comp_none_cleanup(void *handle)
{
}
-static int ssh_comp_none_block(unsigned char *block, int len,
+static int ssh_comp_none_block(void *handle, unsigned char *block, int len,
unsigned char **outblock, int *outlen)
{
return 0;
}
-static int ssh_comp_none_disable(void)
+static int ssh_comp_none_disable(void *handle)
{
return 0;
}
const static struct ssh_compress ssh_comp_none = {
"none",
- ssh_comp_none_init, ssh_comp_none_block,
- ssh_comp_none_init, ssh_comp_none_block,
- ssh_comp_none_disable
+ ssh_comp_none_init, ssh_comp_none_cleanup, ssh_comp_none_block,
+ ssh_comp_none_init, ssh_comp_none_cleanup, ssh_comp_none_block,
+ ssh_comp_none_disable, NULL
};
extern const struct ssh_compress ssh_zlib;
const static struct ssh_compress *compressions[] = {
Socket s;
+ void *ldisc;
+
unsigned char session_key[32];
int v1_compressing;
int v1_remote_protoflags;
const struct ssh_mac *csmac, *scmac;
void *cs_mac_ctx, *sc_mac_ctx;
const struct ssh_compress *cscomp, *sccomp;
+ void *cs_comp_ctx, *sc_comp_ctx;
const struct ssh_kex *kex;
const struct ssh_signkey *hostkey;
unsigned char v2_session_id[20];
+ void *kex_ctx;
char *savedhost;
int savedport;
if (ssh->v1_compressing) {
unsigned char *decompblk;
int decomplen;
- zlib_decompress_block(ssh->pktin.body - 1, ssh->pktin.length + 1,
+ zlib_decompress_block(ssh->sc_comp_ctx,
+ ssh->pktin.body - 1, ssh->pktin.length + 1,
&decompblk, &decomplen);
if (ssh->pktin.maxlen < st->pad + decomplen) {
unsigned char *newpayload;
int newlen;
if (ssh->sccomp &&
- ssh->sccomp->decompress(ssh->pktin.data + 5, ssh->pktin.length - 5,
+ ssh->sccomp->decompress(ssh->sc_comp_ctx,
+ ssh->pktin.data + 5, ssh->pktin.length - 5,
&newpayload, &newlen)) {
if (ssh->pktin.maxlen < newlen + 5) {
ssh->pktin.maxlen = newlen + 5;
if (ssh->v1_compressing) {
unsigned char *compblk;
int complen;
- zlib_compress_block(ssh->pktout.body - 1, ssh->pktout.length + 1,
+ zlib_compress_block(ssh->cs_comp_ctx,
+ ssh->pktout.body - 1, ssh->pktout.length + 1,
&compblk, &complen);
ssh1_pktout_size(ssh, complen - 1);
memcpy(ssh->pktout.body - 1, compblk, complen);
unsigned char *newpayload;
int newlen;
if (ssh->cscomp &&
- ssh->cscomp->compress(ssh->pktout.data + 5, ssh->pktout.length - 5,
+ ssh->cscomp->compress(ssh->cs_comp_ctx, ssh->pktout.data + 5,
+ ssh->pktout.length - 5,
&newpayload, &newlen)) {
ssh->pktout.length = 5;
ssh2_pkt_adddata(ssh, newpayload, newlen);
}
if (sport && dport) {
if (type == 'L') {
- pfd_addforward(host, dport, sport);
+ pfd_addforward(host, dport, sport, ssh);
sprintf(buf, "Local port %.*s%.*s%d%.*s forwarding to"
" %s:%.*s%.*s%d%.*s",
sserv ? strlen(sports) : 0, sports,
}
logevent("Started compression");
ssh->v1_compressing = TRUE;
- zlib_compress_init();
- zlib_decompress_init();
+ ssh->cs_comp_ctx = zlib_compress_init();
+ logevent("Initialised zlib (RFC1950) compression");
+ ssh->sc_comp_ctx = zlib_decompress_init();
+ logevent("Initialised zlib (RFC1950) decompression");
}
/*
if (ssh->eof_needed)
ssh_special(ssh, TS_EOF);
- ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */
+ if (ssh->ldisc)
+ ldisc_send(ssh->ldisc, NULL, 0, 0);/* cause ldisc to notice changes */
ssh->send_ok = 1;
ssh->channels = newtree234(ssh_channelcmp);
while (1) {
}
s->p = ssh2_pkt_getmp(ssh);
s->g = ssh2_pkt_getmp(ssh);
- dh_setup_group(s->p, s->g);
+ ssh->kex_ctx = dh_setup_group(s->p, s->g);
s->kex_init_value = SSH2_MSG_KEX_DH_GEX_INIT;
s->kex_reply_value = SSH2_MSG_KEX_DH_GEX_REPLY;
} else {
ssh->pkt_ctx |= SSH2_PKTCTX_DHGROUP1;
- dh_setup_group1();
+ ssh->kex_ctx = dh_setup_group1();
s->kex_init_value = SSH2_MSG_KEXDH_INIT;
s->kex_reply_value = SSH2_MSG_KEXDH_REPLY;
}
/*
* Now generate and send e for Diffie-Hellman.
*/
- s->e = dh_create_e(s->nbits * 2);
+ s->e = dh_create_e(ssh->kex_ctx, s->nbits * 2);
ssh2_pkt_init(ssh, s->kex_init_value);
ssh2_pkt_addmp(ssh, s->e);
ssh2_pkt_send(ssh);
s->f = ssh2_pkt_getmp(ssh);
ssh2_pkt_getstring(ssh, &s->sigdata, &s->siglen);
- s->K = dh_find_K(s->f);
+ s->K = dh_find_K(ssh->kex_ctx, s->f);
sha_string(&ssh->exhash, s->hostkeydata, s->hostkeylen);
if (ssh->kex == &ssh_diffiehellman_gex) {
sha_mpint(&ssh->exhash, s->K);
SHA_Final(&ssh->exhash, s->exchange_hash);
- dh_cleanup();
+ dh_cleanup(ssh->kex_ctx);
#if 0
debug(("Exchange hash is:\n"));
ssh->scmac = s->scmac_tobe;
ssh->sc_mac_ctx = ssh->scmac->make_context();
+ if (ssh->cs_comp_ctx)
+ ssh->cscomp->compress_cleanup(ssh->cs_comp_ctx);
ssh->cscomp = s->cscomp_tobe;
+ ssh->cs_comp_ctx = ssh->cscomp->compress_init();
+
+ if (ssh->sc_comp_ctx)
+ ssh->sccomp->decompress_cleanup(ssh->sc_comp_ctx);
ssh->sccomp = s->sccomp_tobe;
- ssh->cscomp->compress_init();
- ssh->sccomp->decompress_init();
+ ssh->sc_comp_ctx = ssh->sccomp->decompress_init();
+
/*
* Set IVs after keys. Here we use the exchange hash from the
* _first_ key exchange.
sprintf(buf, "Initialised %.200s server->client encryption",
ssh->sccipher->text_name);
logevent(buf);
+ if (ssh->cscomp->text_name) {
+ sprintf(buf, "Initialised %.200s compression",
+ ssh->cscomp->text_name);
+ logevent(buf);
+ }
+ if (ssh->sccomp->text_name) {
+ sprintf(buf, "Initialised %.200s decompression",
+ ssh->sccomp->text_name);
+ logevent(buf);
+ }
}
* bytes we should adjust our string length
* by.
*/
- stringlen -= ssh->cscomp->disable_compression();
+ stringlen -=
+ ssh->cscomp->disable_compression(ssh->cs_comp_ctx);
}
ssh2_pkt_init(ssh, SSH2_MSG_IGNORE);
ssh2_pkt_addstring_start(ssh);
}
if (sport && dport) {
if (type == 'L') {
- pfd_addforward(host, dport, sport);
+ pfd_addforward(host, dport, sport, ssh);
sprintf(buf, "Local port %.*s%.*s%d%.*s forwarding to"
" %s:%.*s%.*s%d%.*s",
sserv ? strlen(sports) : 0, sports,
/*
* Transfer data!
*/
- ldisc_send(NULL, 0, 0); /* cause ldisc to notice changes */
+ if (ssh->ldisc)
+ ldisc_send(ssh->ldisc, NULL, 0, 0);/* cause ldisc to notice changes */
ssh->send_ok = 1;
while (1) {
crReturnV;
ssh->scmac = NULL;
ssh->sc_mac_ctx = NULL;
ssh->cscomp = NULL;
+ ssh->cs_comp_ctx = NULL;
ssh->sccomp = NULL;
+ ssh->sc_comp_ctx = NULL;
ssh->kex = NULL;
ssh->hostkey = NULL;
ssh->exitcode = -1;
ssh->state = SSH_STATE_PREPACKET;
ssh->size_needed = FALSE;
ssh->eof_needed = FALSE;
+ ssh->ldisc = NULL;
{
static const struct Packet empty = { 0, 0, NULL, NULL, 0 };
ssh->pktin = ssh->pktout = empty;
}
}
-void ssh_send_port_open(void *handle, void *channel, char *hostname,
- int port, char *org)
+void ssh_send_port_open(void *channel, char *hostname, int port, char *org)
{
- Ssh ssh = (Ssh) handle;
struct ssh_channel *c = (struct ssh_channel *)channel;
+ Ssh ssh = c->ssh;
char buf[1024];
sprintf(buf, "Opening forwarded connection to %.512s:%d", hostname, port);
return FALSE;
}
+static void ssh_provide_ldisc(void *handle, void *ldisc)
+{
+ Ssh ssh = (Ssh) handle;
+ ssh->ldisc = ldisc;
+}
+
static int ssh_return_exitcode(void *handle)
{
Ssh ssh = (Ssh) handle;
ssh_return_exitcode,
ssh_sendok,
ssh_ldisc,
+ ssh_provide_ldisc,
ssh_unthrottle,
22
};