X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fdtls1.h;h=af86f60fb566d08384cf48b96e24b2a38d4e575b;hp=b5042ea5fd22fc703867e022233de5e4f2c5bf39;hb=9e189b9dc10786c755919e6792e923c584c918a1;hpb=7e159e0133d28bec9148446e8f4dd86c0216d819

diff --git a/ssl/dtls1.h b/ssl/dtls1.h
index b5042ea5fd..af86f60fb5 100644
--- a/ssl/dtls1.h
+++ b/ssl/dtls1.h
@@ -84,8 +84,14 @@ extern "C" {
 #endif
 
 #define DTLS1_VERSION			0xFEFF
+#define DTLS1_2_VERSION			0xFEFD
+#define DTLS_MAX_VERSION		DTLS1_2_VERSION
+
 #define DTLS1_BAD_VER			0x0100
 
+/* Special value for method supporting multiple versions */
+#define DTLS_ANY_VERSION		0x1FFFF
+
 #if 0
 /* this alert description is not specified anywhere... */
 #define DTLS1_AD_MISSING_HANDSHAKE_MESSAGE    110
@@ -236,7 +242,7 @@ typedef struct dtls1_state_st
 
 	struct dtls1_timeout_st timeout;
 
-	/* Indicates when the last handshake msg sent will timeout */
+	/* Indicates when the last handshake msg or heartbeat sent will timeout */
 	struct timeval next_timeout;
 
 	/* Timeout duration */
@@ -250,6 +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
@@ -284,4 +294,3 @@ typedef struct dtls1_record_data_st
 }
 #endif
 #endif
-