diff options
author | Adam Langley <agl@imperialviolet.org> | 2014-06-06 14:47:07 -0700 |
---|---|---|
committer | Matt Caswell <matt@openssl.org> | 2014-08-06 20:27:51 +0100 |
commit | 4e0fbdc4ecc81c99cd9e63f907039b4b323e642b (patch) | |
tree | d0b037bd3b234dc3d370b76e43185a6b392f2f96 | |
parent | 0c37aed3f327782645d68964cd7a714df6b8880d (diff) | |
download | openssl-new-4e0fbdc4ecc81c99cd9e63f907039b4b323e642b.tar.gz |
Remove some duplicate DTLS code.
In a couple of functions, a sequence number would be calculated twice.
Additionally, in |dtls1_process_out_of_seq_message|, we know that
|frag_len| <= |msg_hdr->msg_len| so the later tests for |frag_len <
msg_hdr->msg_len| can be more clearly written as |frag_len !=
msg_hdr->msg_len|, since that's the only remaining case.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
-rw-r--r-- | ssl/d1_both.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/ssl/d1_both.c b/ssl/d1_both.c index ea8f340cff..89cdca8064 100644 --- a/ssl/d1_both.c +++ b/ssl/d1_both.c @@ -599,7 +599,7 @@ static unsigned long dtls1_max_handshake_message_len(const SSL *s) } static int -dtls1_reassemble_fragment(SSL *s, struct hm_header_st* msg_hdr, int *ok) +dtls1_reassemble_fragment(SSL *s, const struct hm_header_st* msg_hdr, int *ok) { hm_fragment *frag = NULL; pitem *item = NULL; @@ -682,10 +682,6 @@ dtls1_reassemble_fragment(SSL *s, struct hm_header_st* msg_hdr, int *ok) if (item == NULL) { - memset(seq64be,0,sizeof(seq64be)); - seq64be[6] = (unsigned char)(msg_hdr->seq>>8); - seq64be[7] = (unsigned char)(msg_hdr->seq); - item = pitem_new(seq64be, frag); if (item == NULL) { @@ -711,7 +707,7 @@ err: static int -dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok) +dtls1_process_out_of_seq_message(SSL *s, const struct hm_header_st* msg_hdr, int *ok) { int i=-1; hm_fragment *frag = NULL; @@ -731,7 +727,7 @@ dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok) /* If we already have an entry and this one is a fragment, * don't discard it and rather try to reassemble it. */ - if (item != NULL && frag_len < msg_hdr->msg_len) + if (item != NULL && frag_len != msg_hdr->msg_len) item = NULL; /* Discard the message if sequence number was already there, is @@ -756,7 +752,7 @@ dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok) } else { - if (frag_len < msg_hdr->msg_len) + if (frag_len != msg_hdr->msg_len) return dtls1_reassemble_fragment(s, msg_hdr, ok); if (frag_len > dtls1_max_handshake_message_len(s)) @@ -779,10 +775,6 @@ dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok) goto err; } - memset(seq64be,0,sizeof(seq64be)); - seq64be[6] = (unsigned char)(msg_hdr->seq>>8); - seq64be[7] = (unsigned char)(msg_hdr->seq); - item = pitem_new(seq64be, frag); if ( item == NULL) goto err; |