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Code Issues Releases Activity

Declare pmtud_blackhole global variables in tcp_timer.h, so that

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alternative TCP stacks can legally use them.
This commit is contained in:
Gleb Smirnoff 2017-10-06 20:33:40 +00:00
parent 11a7f121b8
commit e29c55e4bb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=324374
2 changed files with 10 additions and 6 deletions
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9
sys/netinet/tcp_timer.c
View File

@ -141,16 +141,14 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, rexmit_drop_options, CTLFLAG_RW,
&tcp_rexmit_drop_options, 0,
"Drop TCP options from 3rd and later retransmitted SYN");
static VNET_DEFINE(int, tcp_pmtud_blackhole_detect);
#define V_tcp_pmtud_blackhole_detect VNET(tcp_pmtud_blackhole_detect)
VNET_DEFINE(int, tcp_pmtud_blackhole_detect);
SYSCTL_INT(_net_inet_tcp, OID_AUTO, pmtud_blackhole_detection,
CTLFLAG_RW|CTLFLAG_VNET,
&VNET_NAME(tcp_pmtud_blackhole_detect), 0,
"Path MTU Discovery Black Hole Detection Enabled");
#ifdef INET
static VNET_DEFINE(int, tcp_pmtud_blackhole_mss) = 1200;
#define V_tcp_pmtud_blackhole_mss VNET(tcp_pmtud_blackhole_mss)
VNET_DEFINE(int, tcp_pmtud_blackhole_mss) = 1200;
SYSCTL_INT(_net_inet_tcp, OID_AUTO, pmtud_blackhole_mss,
CTLFLAG_RW|CTLFLAG_VNET,
&VNET_NAME(tcp_pmtud_blackhole_mss), 0,
@ -158,8 +156,7 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, pmtud_blackhole_mss,
#endif
#ifdef INET6
static VNET_DEFINE(int, tcp_v6pmtud_blackhole_mss) = 1220;
#define V_tcp_v6pmtud_blackhole_mss VNET(tcp_v6pmtud_blackhole_mss)
VNET_DEFINE(int, tcp_v6pmtud_blackhole_mss) = 1220;
SYSCTL_INT(_net_inet_tcp, OID_AUTO, v6pmtud_blackhole_mss,
CTLFLAG_RW|CTLFLAG_VNET,
&VNET_NAME(tcp_v6pmtud_blackhole_mss), 0,

7
sys/netinet/tcp_timer.h
View File

@ -198,6 +198,13 @@ extern int tcp_syn_backoff[];
extern int tcp_finwait2_timeout;
extern int tcp_fast_finwait2_recycle;
VNET_DECLARE(int, tcp_pmtud_blackhole_detect);
#define V_tcp_pmtud_blackhole_detect VNET(tcp_pmtud_blackhole_detect)
VNET_DECLARE(int, tcp_pmtud_blackhole_mss);
#define V_tcp_pmtud_blackhole_mss VNET(tcp_pmtud_blackhole_mss)
VNET_DECLARE(int, tcp_v6pmtud_blackhole_mss);
#define V_tcp_v6pmtud_blackhole_mss VNET(tcp_v6pmtud_blackhole_mss)
int tcp_inpinfo_lock_add(struct inpcb *inp);
void tcp_inpinfo_lock_del(struct inpcb *inp, struct tcpcb *tp);