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1f44b0a1b5
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
13 lines
209 B
Makefile
13 lines
209 B
Makefile
# $FreeBSD$
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.PATH: ${.CURDIR}/../../netinet
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KMOD= ip_mroute
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SRCS= ip_mroute.c opt_mac.h opt_mrouting.h
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CFLAGS+= -DMROUTE_KLD
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opt_mrouting.h:
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echo "#define MROUTING 1" > ${.TARGET}
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.include <bsd.kmod.mk>
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