int ssl2_connect(SSL *s)
{
unsigned long l=(unsigned long)time(NULL);
BUF_MEM *buf=NULL;
int ret= -1;
void (*cb)(const SSL *ssl,int type,int val)=NULL;
int new_state,state;
RAND_add(&l,sizeof(l),0);
ERR_clear_error();
clear_sys_error();
if (s->info_callback != NULL)
cb=s->info_callback;
else if (s->ctx->info_callback != NULL)
cb=s->ctx->info_callback;
/* init things to blank */
s->in_handshake++;
if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
for (;;)
{
state=s->state;
switch (s->state)
{
case SSL_ST_BEFORE:
case SSL_ST_CONNECT:
case SSL_ST_BEFORE|SSL_ST_CONNECT:
case SSL_ST_OK|SSL_ST_CONNECT:
s->server=0;
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
s->version=SSL2_VERSION;
s->type=SSL_ST_CONNECT;
buf=s->init_buf;
if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL))
{
ret= -1;
goto end;
}
if (!BUF_MEM_grow(buf,
SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
{
if (buf == s->init_buf)
buf=NULL;
ret= -1;
goto end;
}
s->init_buf=buf;
buf=NULL;
s->init_num=0;
s->state=SSL2_ST_SEND_CLIENT_HELLO_A;
s->ctx->stats.sess_connect++;
s->handshake_func=ssl2_connect;
BREAK;
case SSL2_ST_SEND_CLIENT_HELLO_A:
case SSL2_ST_SEND_CLIENT_HELLO_B:
s->shutdown=0;
ret=client_hello(s);
if (ret <= 0) goto end;
s->init_num=0;
s->state=SSL2_ST_GET_SERVER_HELLO_A;
BREAK;
case SSL2_ST_GET_SERVER_HELLO_A:
case SSL2_ST_GET_SERVER_HELLO_B:
ret=get_server_hello(s);
if (ret <= 0) goto end;
s->init_num=0;
if (!s->hit) /* new session */
{
s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_A;
BREAK;
}
else
{
s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
break;
}
case SSL2_ST_SEND_CLIENT_MASTER_KEY_A:
case SSL2_ST_SEND_CLIENT_MASTER_KEY_B:
ret=client_master_key(s);
if (ret <= 0) goto end;
s->init_num=0;
s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
break;
case SSL2_ST_CLIENT_START_ENCRYPTION:
/* Ok, we now have all the stuff needed to
* start encrypting, so lets fire it up :-) */
if (!ssl2_enc_init(s,1))
{
ret= -1;
goto end;
}
s->s2->clear_text=0;
s->state=SSL2_ST_SEND_CLIENT_FINISHED_A;
break;
case SSL2_ST_SEND_CLIENT_FINISHED_A:
case SSL2_ST_SEND_CLIENT_FINISHED_B:
ret=client_finished(s);
if (ret <= 0) goto end;
s->init_num=0;
s->state=SSL2_ST_GET_SERVER_VERIFY_A;
break;
case SSL2_ST_GET_SERVER_VERIFY_A:
case SSL2_ST_GET_SERVER_VERIFY_B:
ret=get_server_verify(s);
if (ret <= 0) goto end;
s->init_num=0;
s->state=SSL2_ST_GET_SERVER_FINISHED_A;
break;
case SSL2_ST_GET_SERVER_FINISHED_A:
case SSL2_ST_GET_SERVER_FINISHED_B:
ret=get_server_finished(s);
if (ret <= 0) goto end;
break;
case SSL2_ST_SEND_CLIENT_CERTIFICATE_A:
case SSL2_ST_SEND_CLIENT_CERTIFICATE_B:
case SSL2_ST_SEND_CLIENT_CERTIFICATE_C:
case SSL2_ST_SEND_CLIENT_CERTIFICATE_D:
case SSL2_ST_X509_GET_CLIENT_CERTIFICATE:
ret=client_certificate(s);
if (ret <= 0) goto end;
s->init_num=0;
s->state=SSL2_ST_GET_SERVER_FINISHED_A;
break;
case SSL_ST_OK:
if (s->init_buf != NULL)
{
BUF_MEM_free(s->init_buf);
s->init_buf=NULL;
}
s->init_num=0;
/* ERR_clear_error();*/
/* If we want to cache session-ids in the client
* and we successfully add the session-id to the
* cache, and there is a callback, then pass it out.
* 26/11/96 - eay - only add if not a re-used session.
*/
ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
if (s->hit) s->ctx->stats.sess_hit++;
ret=1;
/* s->server=0; */
s->ctx->stats.sess_connect_good++;
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
goto end;
/* break; */
default:
SSLerr(SSL_F_SSL2_CONNECT,SSL_R_UNKNOWN_STATE);
return(-1);
/* break; */
}
if ((cb != NULL) && (s->state != state))
{
new_state=s->state;
s->state=state;
cb(s,SSL_CB_CONNECT_LOOP,1);
s->state=new_state;
}
}
end:
s->in_handshake--;
if (buf != NULL)
BUF_MEM_free(buf);
if (cb != NULL)
cb(s,SSL_CB_CONNECT_EXIT,ret);
return(ret);
}
static void run_timeout_cb(EV_P_ ev_timer *w, int revents)
{
struct client_context *cc = (struct client_context *)w->data;
client_finished(cc);
ev_break(cc->loop, EVBREAK_ALL);
}
