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Infrastructure for buffering & resending flights

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Manuel Pégourié-Gonnard
2014-09-19 11:18:57 +02:00
committed by Paul Bakker
parent a014829024
commit ffa67be698
2 changed files with 163 additions and 0 deletions
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29
include/polarssl/ssl.h
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@ -243,6 +243,14 @@
#define SSL_SESSION_TICKETS_DISABLED 0
#define SSL_SESSION_TICKETS_ENABLED 1
/*
* DTLS retransmission states, see RFC 6347 4.2.4
*/
#define SSL_RETRANS_PREPARING 0
#define SSL_RETRANS_SENDING 1
#define SSL_RETRANS_WAITING 2
#define SSL_RETRANS_FINISHED 3
/**
* \name SECTION: Module settings
*
@ -511,6 +519,9 @@ typedef struct _ssl_ticket_keys ssl_ticket_keys;
#if defined(POLARSSL_X509_CRT_PARSE_C)
typedef struct _ssl_key_cert ssl_key_cert;
#endif
#if defined(POLARSSL_SSL_PROTO_DTLS)
typedef struct _ssl_flight_item ssl_flight_item;
#endif
/*
* This structure is used for storing current session data.
@ -622,11 +633,17 @@ struct _ssl_handshake_params
#if defined(POLARSSL_SSL_PROTO_DTLS)
unsigned int out_msg_seq; /*!< Outgoing handshake sequence number */
unsigned int in_msg_seq; /*!< Incoming handshake sequence number */
unsigned char *verify_cookie; /*!< Cli: HelloVerifyRequest cookie
Srv: unused */
unsigned char verify_cookie_len; /*!< Cli: cookie length
Srv: flag for sending a cookie */
unsigned char *hs_msg; /*!< Reassembled handshake message */
unsigned char retransmit_state; /*!< Retransmission state */
ssl_flight_item *flight; /*!< Current outgoing flight */
ssl_flight_item *cur_msg; /*!< Current message in flight */
#endif
/*
@ -695,6 +712,18 @@ struct _ssl_key_cert
};
#endif /* POLARSSL_X509_CRT_PARSE_C */
#if defined(POLARSSL_SSL_PROTO_DTLS)
/*
* List of handshake messages kept around for resending
*/
struct _ssl_flight_item
{
unsigned char *p; /*!< message, including handshake headers */
size_t len; /*!< length of hs_msg */
ssl_flight_item *next; /*!< next handshake message(s) */
};
#endif /* POLARSSL_SSL_PROTO_DTLS */
struct _ssl_context
{
/*