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Add the ability for a server to receive a KeyUpdate message

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Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2609)
This commit is contained in:
Matt Caswell 2017-02-09 15:29:45 +00:00
parent b07b2a1b44
commit 8cdc8c5105
1 changed files with 17 additions and 1 deletions
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18
ssl/statem/statem_srvr.c
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@ -132,6 +132,13 @@ static int ossl_statem_server13_read_transition(SSL *s, int mt)
return 1;
}
break;
case TLS_ST_OK:
if (mt == SSL3_MT_KEY_UPDATE) {
st->hand_state = TLS_ST_SR_KEY_UPDATE;
return 1;
}
break;
}
/* No valid transition found */
@ -408,7 +415,8 @@ static WRITE_TRAN ossl_statem_server13_write_transition(SSL *s)
st->hand_state = TLS_ST_SW_KEY_UPDATE;
return WRITE_TRAN_CONTINUE;
}
return WRITE_TRAN_ERROR;
/* Try to read from the client instead */
return WRITE_TRAN_FINISHED;
case TLS_ST_SR_CLNT_HELLO:
if (s->hello_retry_request)
@ -461,6 +469,7 @@ static WRITE_TRAN ossl_statem_server13_write_transition(SSL *s)
st->hand_state = TLS_ST_SW_SESSION_TICKET;
return WRITE_TRAN_CONTINUE;
case TLS_ST_SR_KEY_UPDATE:
case TLS_ST_SW_KEY_UPDATE:
case TLS_ST_SW_SESSION_TICKET:
st->hand_state = TLS_ST_OK;
@ -992,6 +1001,9 @@ size_t ossl_statem_server_max_message_size(SSL *s)
case TLS_ST_SR_FINISHED:
return FINISHED_MAX_LENGTH;
case TLS_ST_SR_KEY_UPDATE:
return KEY_UPDATE_MAX_LENGTH;
}
}
@ -1029,6 +1041,10 @@ MSG_PROCESS_RETURN ossl_statem_server_process_message(SSL *s, PACKET *pkt)
case TLS_ST_SR_FINISHED:
return tls_process_finished(s, pkt);
case TLS_ST_SR_KEY_UPDATE:
return tls_process_key_update(s, pkt);
}
}