Author: bz
Date: Sat Sep 21 10:01:51 2013
New Revision: 255759
URL: http://svnweb.freebsd.org/changeset/base/255759
Log:
Introduce spares in the TCP syncache and timewait structures
so that fixed TCP_SIGNATURE handling can later be merged.
This is derived from follow-up work to SVN r183001 posted to
net@ on Sep 13 2008.
Approved by: re (gjb)
Modified:
head/sys/netinet/tcp_syncache.h
head/sys/netinet/tcp_var.h
Modified: head/sys/netinet/tcp_syncache.h
==============================================================================
--- head/sys/netinet/tcp_syncache.h Sat Sep 21 09:17:14 2013
(r255758)
+++ head/sys/netinet/tcp_syncache.h Sat Sep 21 10:01:51 2013
(r255759)
@@ -75,6 +75,7 @@ struct syncache {
struct label *sc_label; /* MAC label reference */
struct ucred *sc_cred; /* cred cache for jail checks */
+ void *sc_pspare; /* TCP_SIGNATURE */
u_int32_t sc_spare[2]; /* UTO */
};
Modified: head/sys/netinet/tcp_var.h
==============================================================================
--- head/sys/netinet/tcp_var.h Sat Sep 21 09:17:14 2013 (r255758)
+++ head/sys/netinet/tcp_var.h Sat Sep 21 10:01:51 2013 (r255759)
@@ -211,7 +211,7 @@ struct tcpcb {
u_int t_tsomax; /* tso burst length limit */
uint32_t t_ispare[8]; /* 5 UTO, 3 TBD */
- void *t_pspare2[4]; /* 4 TBD */
+ void *t_pspare2[4]; /* 1 TCP_SIGNATURE, 3 TBD */
uint64_t _pad[6]; /* 6 TBD (1-2 CC/RTT?) */
};
@@ -353,6 +353,8 @@ struct tcptw {
u_int t_starttime;
int tw_time;
TAILQ_ENTRY(tcptw) tw_2msl;
+ void *tw_pspare; /* TCP_SIGNATURE */
+ u_int *tw_spare; /* TCP_SIGNATURE */
};
#define intotcpcb(ip) ((struct tcpcb *)(ip)->inp_ppcb)
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