d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Turning on IPSEC used to introduce a slight amount of performance

Browse Source 
degradation (7%) for host host TCP connections over 10Gbps links,
even when there were no secuirty policies in place. There is no
change in performance on 1Gbps network links. Testing GENERIC vs.
GENERIC-NOIPSEC vs. GENERIC with this change shows that the new
code removes any overhead introduced by having IPSEC always in the
kernel.

Differential Revision:	D3993
MFC after:	1 month
Sponsored by:	Rubicon Communications (Netgate)
This commit is contained in:
George V. Neville-Neil 2015-10-27 00:42:15 +00:00
parent b0be2b128f
commit 26882b4239
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=290028
3 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/netinet/ip_ipsec.c
View File

@ -158,6 +158,10 @@ int
ip_ipsec_output(struct mbuf **m, struct inpcb *inp, int *error)
{
struct secpolicy *sp;
if (!key_havesp(IPSEC_DIR_INBOUND))
return 0;
/*
* Check the security policy (SP) for the packet and, if
* required, do IPsec-related processing. There are two

3
sys/netinet/tcp_subr.c
View File

@ -1972,7 +1972,8 @@ ipsec_hdrsiz_tcp(struct tcpcb *tp)
#endif
struct tcphdr *th;
if ((tp == NULL) || ((inp = tp->t_inpcb) == NULL))
if ((tp == NULL) || ((inp = tp->t_inpcb) == NULL) ||
(!key_havesp(IPSEC_DIR_OUTBOUND)))
return (0);
m = m_gethdr(M_NOWAIT, MT_DATA);
if (!m)

6
sys/netipsec/ipsec.c
View File

@ -1276,6 +1276,9 @@ ipsec46_in_reject(struct mbuf *m, struct inpcb *inp)
int error;
int result;
if (!key_havesp(IPSEC_DIR_INBOUND))
return 0;
IPSEC_ASSERT(m != NULL, ("null mbuf"));
/* Get SP for this packet. */
@ -1403,6 +1406,9 @@ ipsec_hdrsiz(struct mbuf *m, u_int dir, struct inpcb *inp)
int error;
size_t size;
if (!key_havesp(dir))
return 0;
IPSEC_ASSERT(m != NULL, ("null mbuf"));
/* Get SP for this packet. */