*/
/* Sub state machine return values */
-typedef enum {
+typedef enum {
/* Something bad happened or NBIO */
SUB_STATE_ERROR,
/* Sub state finished go to the next sub state */
s->statem.hand_state = TLS_ST_SR_CLNT_HELLO;
}
-int ossl_statem_connect(SSL *s) {
+int ossl_statem_connect(SSL *s)
+{
return state_machine(s, 0);
}
return state_machine(s, 1);
}
-static void (*get_callback(SSL *s))(const SSL *, int, int)
+typedef void (*info_cb) (const SSL *, int, int);
+
+static info_cb get_callback(SSL *s)
{
if (s->info_callback != NULL)
return s->info_callback;
if (!SSL_clear(s))
return -1;
}
-
#ifndef OPENSSL_NO_SCTP
if (SSL_IS_DTLS(s)) {
/*
}
#endif
-#ifndef OPENSSL_NO_HEARTBEATS
- /*
- * If we're awaiting a HeartbeatResponse, pretend we already got and
- * don't await it anymore, because Heartbeats don't make sense during
- * handshakes anyway.
- */
- if (s->tlsext_hb_pending) {
- if (SSL_IS_DTLS(s))
- dtls1_stop_timer(s);
- s->tlsext_hb_pending = 0;
- s->tlsext_hb_seq++;
- }
-#endif
-
/* Initialise state machine */
if (st->state == MSG_FLOW_RENEGOTIATE) {
if (SSL_IS_DTLS(s)) {
if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00) &&
- (server
- || (s->version & 0xff00) != (DTLS1_BAD_VER & 0xff00))) {
+ (server || (s->version & 0xff00) != (DTLS1_BAD_VER & 0xff00))) {
SSLerr(SSL_F_STATE_MACHINE, ERR_R_INTERNAL_ERROR);
goto end;
}
*/
s->s3->change_cipher_spec = 0;
-
/*
* Ok, we now need to push on a buffering BIO ...but not with
* SCTP
s->hit = 0;
s->s3->tmp.cert_request = 0;
+ s->s3->tmp.cert_req = 0;
if (SSL_IS_DTLS(s)) {
st->use_timer = 1;
st->read_state_first_init = 1;
}
- while(st->state != MSG_FLOW_FINISHED) {
- if(st->state == MSG_FLOW_READING) {
+ while (st->state != MSG_FLOW_FINISHED) {
+ if (st->state == MSG_FLOW_READING) {
ssret = read_state_machine(s);
if (ssret == SUB_STATE_FINISHED) {
st->state = MSG_FLOW_WRITING;
st->read_state = READ_STATE_HEADER;
}
+static int grow_init_buf(SSL *s, size_t size) {
+
+ size_t msg_offset = (char *)s->init_msg - s->init_buf->data;
+
+ if (!BUF_MEM_grow_clean(s->init_buf, (int)size))
+ return 0;
+
+ if (size < msg_offset)
+ return 0;
+
+ s->init_msg = s->init_buf->data + msg_offset;
+
+ return 1;
+}
+
/*
* This function implements the sub-state machine when the message flow is in
* MSG_FLOW_READING. The valid sub-states and transitions are:
* control returns to the calling application. When this function is recalled we
* will resume in the same state where we left off.
*/
-static SUB_STATE_RETURN read_state_machine(SSL *s) {
+static SUB_STATE_RETURN read_state_machine(SSL *s)
+{
OSSL_STATEM *st = &s->statem;
int ret, mt;
- unsigned long len = 0;
- int (*transition)(SSL *s, int mt);
+ size_t len = 0;
+ int (*transition) (SSL *s, int mt);
PACKET pkt;
- MSG_PROCESS_RETURN (*process_message)(SSL *s, PACKET *pkt);
- WORK_STATE (*post_process_message)(SSL *s, WORK_STATE wst);
- unsigned long (*max_message_size)(SSL *s);
+ MSG_PROCESS_RETURN(*process_message) (SSL *s, PACKET *pkt);
+ WORK_STATE(*post_process_message) (SSL *s, WORK_STATE wst);
+ size_t (*max_message_size) (SSL *s);
void (*cb) (const SSL *ssl, int type, int val) = NULL;
cb = get_callback(s);
- if(s->server) {
+ if (s->server) {
transition = ossl_statem_server_read_transition;
process_message = ossl_statem_server_process_message;
max_message_size = ossl_statem_server_max_message_size;
st->read_state_first_init = 0;
}
- while(1) {
- switch(st->read_state) {
+ while (1) {
+ switch (st->read_state) {
case READ_STATE_HEADER:
/* Get the state the peer wants to move to */
if (SSL_IS_DTLS(s)) {
* Validate that we are allowed to move to the new state and move
* to that state if so
*/
- if(!transition(s, mt)) {
+ if (!transition(s, mt)) {
ossl_statem_set_error(s);
return SUB_STATE_ERROR;
}
return SUB_STATE_ERROR;
}
+ /* dtls_get_message already did this */
+ if (!SSL_IS_DTLS(s)
+ && s->s3->tmp.message_size > 0
+ && !grow_init_buf(s, s->s3->tmp.message_size
+ + SSL3_HM_HEADER_LENGTH)) {
+ ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
+ SSLerr(SSL_F_READ_STATE_MACHINE, ERR_R_BUF_LIB);
+ return SUB_STATE_ERROR;
+ }
+
st->read_state = READ_STATE_BODY;
/* Fall through */
/* Discard the packet data */
s->init_num = 0;
- if (ret == MSG_PROCESS_ERROR) {
+ switch (ret) {
+ case MSG_PROCESS_ERROR:
return SUB_STATE_ERROR;
- }
- if (ret == MSG_PROCESS_FINISHED_READING) {
+ case MSG_PROCESS_FINISHED_READING:
if (SSL_IS_DTLS(s)) {
dtls1_stop_timer(s);
}
return SUB_STATE_FINISHED;
- }
- if (ret == MSG_PROCESS_CONTINUE_PROCESSING) {
+ case MSG_PROCESS_CONTINUE_PROCESSING:
st->read_state = READ_STATE_POST_PROCESS;
st->read_state_work = WORK_MORE_A;
- } else {
+ break;
+
+ default:
st->read_state = READ_STATE_HEADER;
+ break;
}
break;
case READ_STATE_POST_PROCESS:
st->read_state_work = post_process_message(s, st->read_state_work);
- switch(st->read_state_work) {
- default:
+ switch (st->read_state_work) {
+ case WORK_ERROR:
+ case WORK_MORE_A:
+ case WORK_MORE_B:
return SUB_STATE_ERROR;
case WORK_FINISHED_CONTINUE:
OSSL_STATEM *st = &s->statem;
if (st->hand_state == TLS_ST_CW_CHANGE
- || st->hand_state == TLS_ST_SW_CHANGE) {
+ || st->hand_state == TLS_ST_SW_CHANGE) {
if (SSL_IS_DTLS(s))
return dtls1_do_write(s, SSL3_RT_CHANGE_CIPHER_SPEC);
else
{
OSSL_STATEM *st = &s->statem;
int ret;
- WRITE_TRAN (*transition)(SSL *s);
- WORK_STATE (*pre_work)(SSL *s, WORK_STATE wst);
- WORK_STATE (*post_work)(SSL *s, WORK_STATE wst);
- int (*construct_message)(SSL *s);
+ WRITE_TRAN(*transition) (SSL *s);
+ WORK_STATE(*pre_work) (SSL *s, WORK_STATE wst);
+ WORK_STATE(*post_work) (SSL *s, WORK_STATE wst);
+ int (*get_construct_message_f) (SSL *s, WPACKET *pkt,
+ int (**confunc) (SSL *s, WPACKET *pkt),
+ int *mt);
void (*cb) (const SSL *ssl, int type, int val) = NULL;
+ int (*confunc) (SSL *s, WPACKET *pkt);
+ int mt;
+ WPACKET pkt;
cb = get_callback(s);
- if(s->server) {
+ if (s->server) {
transition = ossl_statem_server_write_transition;
pre_work = ossl_statem_server_pre_work;
post_work = ossl_statem_server_post_work;
- construct_message = ossl_statem_server_construct_message;
+ get_construct_message_f = ossl_statem_server_construct_message;
} else {
transition = ossl_statem_client_write_transition;
pre_work = ossl_statem_client_pre_work;
post_work = ossl_statem_client_post_work;
- construct_message = ossl_statem_client_construct_message;
+ get_construct_message_f = ossl_statem_client_construct_message;
}
- while(1) {
- switch(st->write_state) {
+ while (1) {
+ switch (st->write_state) {
case WRITE_STATE_TRANSITION:
if (cb != NULL) {
/* Notify callback of an impending state change */
else
cb(s, SSL_CB_CONNECT_LOOP, 1);
}
- switch(transition(s)) {
+ switch (transition(s)) {
case WRITE_TRAN_CONTINUE:
st->write_state = WRITE_STATE_PRE_WORK;
st->write_state_work = WORK_MORE_A;
return SUB_STATE_FINISHED;
break;
- default:
+ case WRITE_TRAN_ERROR:
return SUB_STATE_ERROR;
}
break;
case WRITE_STATE_PRE_WORK:
- switch(st->write_state_work = pre_work(s, st->write_state_work)) {
- default:
+ switch (st->write_state_work = pre_work(s, st->write_state_work)) {
+ case WORK_ERROR:
+ case WORK_MORE_A:
+ case WORK_MORE_B:
return SUB_STATE_ERROR;
case WORK_FINISHED_CONTINUE:
case WORK_FINISHED_STOP:
return SUB_STATE_END_HANDSHAKE;
}
- if(construct_message(s) == 0)
+ if (!WPACKET_init(&pkt, s->init_buf)
+ || !get_construct_message_f(s, &pkt, &confunc, &mt)
+ || !ssl_set_handshake_header(s, &pkt, mt)
+ || (confunc != NULL && !confunc(s, &pkt))
+ || !ssl_close_construct_packet(s, &pkt, mt)
+ || !WPACKET_finish(&pkt)) {
+ WPACKET_cleanup(&pkt);
+ ossl_statem_set_error(s);
return SUB_STATE_ERROR;
+ }
/* Fall through */
/* Fall through */
case WRITE_STATE_POST_WORK:
- switch(st->write_state_work = post_work(s, st->write_state_work)) {
- default:
+ switch (st->write_state_work = post_work(s, st->write_state_work)) {
+ case WORK_ERROR:
+ case WORK_MORE_A:
+ case WORK_MORE_B:
return SUB_STATE_ERROR;
case WORK_FINISHED_CONTINUE:
* ServerHello yet then we allow app data
*/
if (st->hand_state == TLS_ST_BEFORE
- || st->hand_state == TLS_ST_SR_CLNT_HELLO)
+ || st->hand_state == TLS_ST_SR_CLNT_HELLO)
return 1;
} else {
/*
projects / openssl.git / blobdiff