Author: eri Date: Fri Jul 3 15:31:56 2015 New Revision: 285096 URL: https://svnweb.freebsd.org/changeset/base/285096
Log: Reduce overhead of IPSEC for traffic generated from host When IPSEC is enabled on the kernel the forwarding path has an optimization to not enter the code paths for checking security policies but first checks if there is any security policy active at all. The patch introduces the same optimization but for traffic generated from the host itself. This reduces the overhead by 50% on my tests for generated host traffic without and SP active. Differential Revision: https://reviews.freebsd.org/D2980 Reviewed by: ae, gnn Approved by: gnn(mentor) Modified: head/sys/netipsec/ipsec.c Modified: head/sys/netipsec/ipsec.c ============================================================================== --- head/sys/netipsec/ipsec.c Fri Jul 3 14:46:57 2015 (r285095) +++ head/sys/netipsec/ipsec.c Fri Jul 3 15:31:56 2015 (r285096) @@ -334,6 +334,12 @@ ipsec_getpolicybysock(struct mbuf *m, u_ IPSEC_ASSERT(dir == IPSEC_DIR_INBOUND || dir == IPSEC_DIR_OUTBOUND, ("invalid direction %u", dir)); + if (!key_havesp(dir)) { + /* No SP found, use system default. */ + sp = KEY_ALLOCSP_DEFAULT(); + return (sp); + } + /* Set spidx in pcb. */ *error = ipsec_setspidx_inpcb(m, inp); if (*error) _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
