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Introduce spares in the TCP syncache and timewait structures

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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)
This commit is contained in:
Bjoern A. Zeeb 2013-09-21 10:01:51 +00:00
parent 6100a68654
commit a5f44cd7a1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=255759
2 changed files with 4 additions and 1 deletions
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1
sys/netinet/tcp_syncache.h
View File

@ -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 */
};

4
sys/netinet/tcp_var.h
View File

@ -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)