diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2009-05-16 16:23:35 +0000 |
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committer | Dr. Stephen Henson <steve@openssl.org> | 2009-05-16 16:23:35 +0000 |
commit | 76428da7291d8e63c45f1fa186ba7eb688b01fcf (patch) | |
tree | d153a767f707962e2faf721ec46467fcba5126d3 /ssl/d1_both.c | |
parent | 6bf4ca08404708bd83a56b1982aa6823d2f605f1 (diff) |
Fix from 1.0.0-stable.
Diffstat (limited to 'ssl/d1_both.c')
-rw-r--r-- | ssl/d1_both.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/ssl/d1_both.c b/ssl/d1_both.c index 5727c73776..63d00062f2 100644 --- a/ssl/d1_both.c +++ b/ssl/d1_both.c @@ -561,7 +561,16 @@ dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok) if ((msg_hdr->frag_off+frag_len) > msg_hdr->msg_len) goto err; - if (msg_hdr->seq <= s->d1->handshake_read_seq) + /* Try to find item in queue, to prevent duplicate entries */ + memset(seq64be,0,sizeof(seq64be)); + seq64be[6] = (unsigned char) (msg_hdr->seq>>8); + seq64be[7] = (unsigned char) msg_hdr->seq; + item = pqueue_find(s->d1->buffered_messages, seq64be); + + /* Discard the message if sequence number was already there, is + * too far in the future or the fragment is already in the queue */ + if (msg_hdr->seq <= s->d1->handshake_read_seq || + msg_hdr->seq > s->d1->handshake_read_seq + 10 || item != NULL) { unsigned char devnull [256]; |