Bug#705630: libc6-dev: Defines missing for TCP options
Package: libc6-dev
Version: 2.13-38
Severity: wishlist
Tags: upstream patch
(submitting this on behalf of the CC target, since it blocks his email?)
Though supported in the default kernel, the defines for the TCP_THIN* and several
other fully supported TCP socket options are missing from tcp.h. This makes it
very hard to build applications that utilize these features.
I have backported the relevant patch from upstream eglibc and included it below.
diff -urB eglibc-2.13.orig/sysdeps/gnu/netinet/tcp.h eglibc-2.13/sysdeps/gnu/netinet/tcp.h
--- eglibc-2.13.orig/sysdeps/gnu/netinet/tcp.h 2007-10-15 16:14:17.000000000 -0400
+++ eglibc-2.13/sysdeps/gnu/netinet/tcp.h 2013-04-16 15:10:29.000000000 -0400
@@ -37,20 +37,24 @@
/*
* User-settable options (used with setsockopt).
*/
-#define TCP_NODELAY 1 /* Don't delay send to coalesce packets */
-#define TCP_MAXSEG 2 /* Set maximum segment size */
-#define TCP_CORK 3 /* Control sending of partial frames */
-#define TCP_KEEPIDLE 4 /* Start keeplives after this period */
-#define TCP_KEEPINTVL 5 /* Interval between keepalives */
-#define TCP_KEEPCNT 6 /* Number of keepalives before death */
-#define TCP_SYNCNT 7 /* Number of SYN retransmits */
-#define TCP_LINGER2 8 /* Life time of orphaned FIN-WAIT-2 state */
-#define TCP_DEFER_ACCEPT 9 /* Wake up listener only when data arrive */
-#define TCP_WINDOW_CLAMP 10 /* Bound advertised window */
-#define TCP_INFO 11 /* Information about this connection. */
-#define TCP_QUICKACK 12 /* Bock/reenable quick ACKs. */
-#define TCP_CONGESTION 13 /* Congestion control algorithm. */
-#define TCP_MD5SIG 14 /* TCP MD5 Signature (RFC2385) */
+#define TCP_NODELAY 1 /* Don't delay send to coalesce packets */
+#define TCP_MAXSEG 2 /* Set maximum segment size */
+#define TCP_CORK 3 /* Control sending of partial frames */
+#define TCP_KEEPIDLE 4 /* Start keeplives after this period */
+#define TCP_KEEPINTVL 5 /* Interval between keepalives */
+#define TCP_KEEPCNT 6 /* Number of keepalives before death */
+#define TCP_SYNCNT 7 /* Number of SYN retransmits */
+#define TCP_LINGER2 8 /* Life time of orphaned FIN-WAIT-2 state */
+#define TCP_DEFER_ACCEPT 9 /* Wake up listener only when data arrive */
+#define TCP_WINDOW_CLAMP 10 /* Bound advertised window */
+#define TCP_INFO 11 /* Information about this connection. */
+#define TCP_QUICKACK 12 /* Bock/reenable quick ACKs. */
+#define TCP_CONGESTION 13 /* Congestion control algorithm. */
+#define TCP_MD5SIG 14 /* TCP MD5 Signature (RFC2385) */
+#define TCP_COOKIE_TRANSACTIONS 15 /* TCP Cookie Transactions */
+#define TCP_THIN_LINEAR_TIMEOUTS 16 /* Use linear timeouts for thin streams*/
+#define TCP_THIN_DUPACK 17 /* Fast retrans. after 1 dupack */
+#define TCP_USER_TIMEOUT 18 /* How long for loss retry before timeout */
#ifdef __USE_MISC
# include <sys/types.h>
@@ -173,7 +177,8 @@
# define TCPI_OPT_TIMESTAMPS 1
# define TCPI_OPT_SACK 2
# define TCPI_OPT_WSCALE 4
-# define TCPI_OPT_ECN 8
+# define TCPI_OPT_ECN 8 /* ECN was negociated at TCP session init */
+# define TCPI_OPT_ECN_SEEN 16 /* we received at least one packet with ECT */
/* Values for tcpi_state. */
enum tcp_ca_state
@@ -241,6 +246,33 @@
u_int8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN]; /* Key (binary). */
};
+/* For cookie transactions socket options. */
+#define TCP_COOKIE_MIN 8 /* 64-bits */
+#define TCP_COOKIE_MAX 16 /* 128-bits */
+#define TCP_COOKIE_PAIR_SIZE (2*TCP_COOKIE_MAX)
+
+/* Flags for both getsockopt and setsockopt */
+#define TCP_COOKIE_IN_ALWAYS (1 << 0) /* Discard SYN without cookie */
+#define TCP_COOKIE_OUT_NEVER (1 << 1) /* Prohibit outgoing cookies,
+ * supercedes everything. */
+
+/* Flags for getsockopt */
+#define TCP_S_DATA_IN (1 << 2) /* Was data received? */
+#define TCP_S_DATA_OUT (1 << 3) /* Was data sent? */
+
+#define TCP_MSS_DEFAULT 536U /* IPv4 (RFC1122, RFC2581) */
+#define TCP_MSS_DESIRED 1220U /* IPv6 (tunneled), EDNS0 (RFC3226) */
+
+struct tcp_cookie_transactions
+{
+ u_int16_t tcpct_flags;
+ u_int8_t __tcpct_pad1;
+ u_int8_t tcpct_cookie_desired;
+ u_int16_t tcpct_s_data_desired;
+ u_int16_t tcpct_used;
+ u_int8_t tcpct_value[TCP_MSS_DEFAULT];
+};
+
#endif /* Misc. */
#endif /* netinet/tcp.h */
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