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| 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/netinet6/ip6_input.c | |
| 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/netinet6/ip6_input.c')
| -rw-r--r-- | sys/netinet6/ip6_input.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c index a22eb12..ac24f97 100644 --- a/sys/netinet6/ip6_input.c +++ b/sys/netinet6/ip6_input.c @@ -66,7 +66,6 @@ #include "opt_inet6.h" #include "opt_ipsec.h" #include "opt_pfil_hooks.h" -#include "opt_random_ip_id.h" #include <sys/param.h> #include <sys/systm.h> @@ -197,9 +196,6 @@ ip6_init() addrsel_policy_init(); nd6_init(); frag6_init(); -#ifndef RANDOM_IP_ID - ip6_flow_seq = arc4random(); -#endif ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR; } |
