diff options
Diffstat (limited to 'openssl/ssl/d1_both.c')
| -rw-r--r-- | openssl/ssl/d1_both.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/openssl/ssl/d1_both.c b/openssl/ssl/d1_both.c index 4ce4064cc..2180c6d4d 100644 --- a/openssl/ssl/d1_both.c +++ b/openssl/ssl/d1_both.c @@ -153,7 +153,7 @@ #endif static unsigned char bitmask_start_values[] = {0xff, 0xfe, 0xfc, 0xf8, 0xf0, 0xe0, 0xc0, 0x80}; -static unsigned char bitmask_end_values[] = {0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f}; +static unsigned char bitmask_end_values[] = {0xff, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f}; /* XDTLS: figure out the right values */ static unsigned int g_probable_mtu[] = {1500 - 28, 512 - 28, 256 - 28}; @@ -464,20 +464,9 @@ again: memset(msg_hdr, 0x00, sizeof(struct hm_header_st)); - s->d1->handshake_read_seq++; - /* we just read a handshake message from the other side: - * this means that we don't need to retransmit of the - * buffered messages. - * XDTLS: may be able clear out this - * buffer a little sooner (i.e if an out-of-order - * handshake message/record is received at the record - * layer. - * XDTLS: exception is that the server needs to - * know that change cipher spec and finished messages - * have been received by the client before clearing this - * buffer. this can simply be done by waiting for the - * first data segment, but is there a better way? */ - dtls1_clear_record_buffer(s); + /* Don't change sequence numbers while listening */ + if (!s->d1->listen) + s->d1->handshake_read_seq++; s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH; return s->init_num; @@ -813,9 +802,11 @@ dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok) /* * if this is a future (or stale) message it gets buffered - * (or dropped)--no further processing at this time + * (or dropped)--no further processing at this time + * While listening, we accept seq 1 (ClientHello with cookie) + * although we're still expecting seq 0 (ClientHello) */ - if ( msg_hdr.seq != s->d1->handshake_read_seq) + if (msg_hdr.seq != s->d1->handshake_read_seq && !(s->d1->listen && msg_hdr.seq == 1)) return dtls1_process_out_of_seq_message(s, &msg_hdr, ok); len = msg_hdr.msg_len; @@ -1322,7 +1313,8 @@ unsigned char * dtls1_set_message_header(SSL *s, unsigned char *p, unsigned char mt, unsigned long len, unsigned long frag_off, unsigned long frag_len) { - if ( frag_off == 0) + /* Don't change sequence numbers while listening */ + if (frag_off == 0 && !s->d1->listen) { s->d1->handshake_write_seq = s->d1->next_handshake_write_seq; s->d1->next_handshake_write_seq++; |