diff options
author | dwmalone <dwmalone@FreeBSD.org> | 2004-08-14 15:32:40 +0000 |
---|---|---|
committer | dwmalone <dwmalone@FreeBSD.org> | 2004-08-14 15:32:40 +0000 |
commit | 5df13d37b27b8510415fb500f01a289443950ebb (patch) | |
tree | 56a806b0847f95ede378bb97ce9bfcb595420ea2 /sys/modules/pf | |
parent | 271672aa9c335d2a4944e53a99960718533d3f22 (diff) | |
download | FreeBSD-src-5df13d37b27b8510415fb500f01a289443950ebb.zip FreeBSD-src-5df13d37b27b8510415fb500f01a289443950ebb.tar.gz |
Get rid of the RANDOM_IP_ID option and make it a sysctl. NetBSD
have already done this, so I have styled the patch on their work:
1) introduce a ip_newid() static inline function that checks
the sysctl and then decides if it should return a sequential
or random IP ID.
2) named the sysctl net.inet.ip.random_id
3) IPv6 flow IDs and fragment IDs are now always random.
Flow IDs and frag IDs are significantly less common in the
IPv6 world (ie. rarely generated per-packet), so there should
be smaller performance concerns.
The sysctl defaults to 0 (sequential IP IDs).
Reviewed by: andre, silby, mlaier, ume
Based on: NetBSD
MFC after: 2 months
Diffstat (limited to 'sys/modules/pf')
-rw-r--r-- | sys/modules/pf/Makefile | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/sys/modules/pf/Makefile b/sys/modules/pf/Makefile index a226f1c..d4eb984 100644 --- a/sys/modules/pf/Makefile +++ b/sys/modules/pf/Makefile @@ -7,8 +7,8 @@ KMOD= pf SRCS = pf.c pf_if.c pf_subr.c pf_osfp.c pf_ioctl.c pf_norm.c pf_table.c \ if_pflog.c \ - in4_cksum.c ip_id.c \ - opt_pf.h opt_inet.h opt_inet6.h opt_bpf.h opt_random_ip_id.h + in4_cksum.c \ + opt_pf.h opt_inet.h opt_inet6.h opt_bpf.h CFLAGS+= -Wall -I${.CURDIR}/../../contrib/pf @@ -29,7 +29,4 @@ opt_inet6.h: opt_bpf.h: echo "#define DEV_BPF 1" > opt_bpf.h -opt_random_ip_id.h: - echo "#define RANDOM_IP_ID 1" > opt_random_ip_id.h - .include <bsd.kmod.mk> |