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authorAndy Polyakov <appro@openssl.org>2007-10-17 21:15:48 +0000
committerAndy Polyakov <appro@openssl.org>2007-10-17 21:15:48 +0000
commit659f7f3168f1116427a297e1aa36a74ea191d976 (patch)
tree0eb83d3d0413ead0dff3eb26df9407021f334905 /ssl/d1_both.c
parent3d3bf9c73029cdc8101bece5a9e15325920ad3a2 (diff)
Don't let DTLS ChangeCipherSpec increment handshake sequence number.
PR: 1587
Diffstat (limited to 'ssl/d1_both.c')
-rw-r--r--ssl/d1_both.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/ssl/d1_both.c b/ssl/d1_both.c
index 87a119dfee..87c8c9306f 100644
--- a/ssl/d1_both.c
+++ b/ssl/d1_both.c
@@ -774,8 +774,6 @@ int dtls1_send_change_cipher_spec(SSL *s, int a, int b)
p=(unsigned char *)s->init_buf->data;
*p++=SSL3_MT_CCS;
s->d1->handshake_write_seq = s->d1->next_handshake_write_seq;
- s->d1->next_handshake_write_seq++;
-
s->init_num=DTLS1_CCS_HEADER_LENGTH;
s->init_off=0;
@@ -965,6 +963,7 @@ dtls1_buffer_message(SSL *s, int is_ccs)
pitem *item;
hm_fragment *frag;
unsigned char seq64be[8];
+ unsigned int epoch = s->d1->w_epoch;
/* this function is called immediately after a message has
* been serialized */
@@ -978,6 +977,7 @@ dtls1_buffer_message(SSL *s, int is_ccs)
{
OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
DTLS1_CCS_HEADER_LENGTH == (unsigned int)s->init_num);
+ epoch++;
}
else
{
@@ -993,6 +993,8 @@ dtls1_buffer_message(SSL *s, int is_ccs)
frag->msg_header.is_ccs = is_ccs;
memset(seq64be,0,sizeof(seq64be));
+ seq64be[0] = (unsigned char)(epoch>>8);
+ seq64be[1] = (unsigned char)(epoch);
seq64be[6] = (unsigned char)(frag->msg_header.seq>>8);
seq64be[7] = (unsigned char)(frag->msg_header.seq);