aboutsummaryrefslogtreecommitdiffstats
path: root/ssl/dtls1.h
diff options
context:
space:
mode:
Diffstat (limited to 'ssl/dtls1.h')
-rw-r--r--ssl/dtls1.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/ssl/dtls1.h b/ssl/dtls1.h
index 192c5deff98a..338575268f9e 100644
--- a/ssl/dtls1.h
+++ b/ssl/dtls1.h
@@ -117,6 +117,9 @@ extern "C" {
#define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
#endif
+/* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
+#define DTLS1_MAX_MTU_OVERHEAD 48
+
typedef struct dtls1_bitmap_st
{
unsigned long map; /* track 32 packets on 32-bit systems
@@ -231,6 +234,7 @@ typedef struct dtls1_state_st
/* Is set when listening for new connections with dtls1_listen() */
unsigned int listen;
+ unsigned int link_mtu; /* max on-the-wire DTLS packet size */
unsigned int mtu; /* max DTLS packet size */
struct hm_header_st w_msg_hdr;
@@ -252,6 +256,10 @@ typedef struct dtls1_state_st
unsigned int handshake_fragment_len;
unsigned int retransmitting;
+ /*
+ * Set when the handshake is ready to process peer's ChangeCipherSpec message.
+ * Cleared after the message has been processed.
+ */
unsigned int change_cipher_spec_ok;
#ifndef OPENSSL_NO_SCTP