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This is an implementation of the client side of TCP Fast Open (TFO) 

[RFC7413]. It also includes a pre-shared key mode of operation in which
the server requires the client to be in possession of a shared secret in
order to successfully open TFO connections with that server.

The names of some existing fastopen sysctls have changed (e.g.,
net.inet.tcp.fastopen.enabled -> net.inet.tcp.fastopen.server_enable).

Reviewed by:	tuexen
MFC after:	1 month
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D14047
This commit is contained in:
pkelsey 2018-02-26 02:53:22 +00:00 committed by Sebastian Huber
parent b43341334e
commit b4d6660d85
1 changed files with 14 additions and 2 deletions
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16
newlib/libc/sys/rtems/include/netinet/tcp.h
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@ -101,8 +101,6 @@ struct tcphdr {
#define TCPOLEN_SIGNATURE 18 #define TCPOLEN_SIGNATURE 18
#define TCPOPT_FAST_OPEN 34 #define TCPOPT_FAST_OPEN 34
#define TCPOLEN_FAST_OPEN_EMPTY 2 #define TCPOLEN_FAST_OPEN_EMPTY 2
#define TCPOLEN_FAST_OPEN_MIN 6
#define TCPOLEN_FAST_OPEN_MAX 18
/* Miscellaneous constants */ /* Miscellaneous constants */
#define MAX_SACK_BLKS 6 /* Max # SACK blocks stored at receiver side */ #define MAX_SACK_BLKS 6 /* Max # SACK blocks stored at receiver side */
@ -152,6 +150,10 @@ struct tcphdr {
#define TCP_MAXHLEN (0xf<<2) /* max length of header in bytes */ #define TCP_MAXHLEN (0xf<<2) /* max length of header in bytes */
#define TCP_MAXOLEN (TCP_MAXHLEN - sizeof(struct tcphdr)) #define TCP_MAXOLEN (TCP_MAXHLEN - sizeof(struct tcphdr))
/* max space left for options */ /* max space left for options */
#define TCP_FASTOPEN_MIN_COOKIE_LEN 4 /* Per RFC7413 */
#define TCP_FASTOPEN_MAX_COOKIE_LEN 16 /* Per RFC7413 */
#define TCP_FASTOPEN_PSK_LEN 16 /* Same as TCP_FASTOPEN_KEY_LEN */
#endif /* __BSD_VISIBLE */ #endif /* __BSD_VISIBLE */
/* /*
@ -252,6 +254,16 @@ struct tcp_info {
/* Padding to grow without breaking ABI. */ /* Padding to grow without breaking ABI. */
u_int32_t __tcpi_pad[26]; /* Padding. */ u_int32_t __tcpi_pad[26]; /* Padding. */
}; };
/*
* If this structure is provided when setting the TCP_FASTOPEN socket
* option, and the enable member is non-zero, a subsequent connect will use
* pre-shared key (PSK) mode using the provided key.
*/
struct tcp_fastopen {
int enable;
uint8_t psk[TCP_FASTOPEN_PSK_LEN];
};
#endif #endif
#define TCP_FUNCTION_NAME_LEN_MAX 32 #define TCP_FUNCTION_NAME_LEN_MAX 32