From: Jonathan Bastien-Filiatrault <joe@x2a.org>
Date: Sat, 25 Jul 2009 23:54:27 +0000 (-0400)
Subject: Add DTLS state.
X-Git-Tag: gnutls_2_99_0~258
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a439f2cdce782187e3e762ce8e02837602fdb431;p=thirdparty%2Fgnutls.git

Add DTLS state.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>
---

diff --git a/lib/gnutls_int.h b/lib/gnutls_int.h
index ed354890f9..987026002e 100644
--- a/lib/gnutls_int.h
+++ b/lib/gnutls_int.h
@@ -139,6 +139,12 @@ typedef struct
 /* expire time for resuming sessions */
 #define DEFAULT_EXPIRE_TIME 3600
 
+typedef enum transport_t
+{
+  GNUTLS_STREAM,
+  GNUTLS_DGRAM
+} transport_t;
+
 /* the maximum size of encrypted packets */
 #define DEFAULT_MAX_RECORD_SIZE 16384
 #define RECORD_HEADER_SIZE 5
@@ -151,6 +157,9 @@ typedef struct
 
 #define HANDSHAKE_HEADER_SIZE 4
 
+/* the maximum size of the DTLS cookie */
+#define DTLS_MAX_COOKIE_SIZE 32
+
 /* defaults for verification functions
  */
 #define DEFAULT_VERIFY_DEPTH 32
@@ -224,6 +233,7 @@ typedef enum content_type_t
   GNUTLS_INNER_APPLICATION = 24
 } content_type_t;
 
+
 #define GNUTLS_PK_ANY (gnutls_pk_algorithm_t)-1
 #define GNUTLS_PK_NONE (gnutls_pk_algorithm_t)-2
 
@@ -498,6 +508,14 @@ typedef struct
   int free_rsa_params;
 } internal_params_st;
 
+/* DTLS session state
+ */
+typedef struct
+{
+  /* HelloVerifyRequest DOS prevention cookie */
+  opaque  cookie[DTLS_MAX_COOKIE_SIZE];
+  uint8_t cookie_len;
+} dtls_st;
 
 
 typedef struct
@@ -755,6 +773,11 @@ typedef struct
     extension_priv_data_t priv;
     int set:1;
   } resumed_extension_int_data[MAX_EXT_TYPES];
+  /* The type of transport protocol; stream or datagram */
+  transport_t transport;
+
+  /* DTLS session state */
+  dtls_st dtls;
 
   unsigned int cb_tls_unique_len;
   unsigned char cb_tls_unique[MAX_VERIFY_DATA_SIZE];