a25eaede91
Also, add ioctls SIOCGIFADDRPREF/SIOCSIFADDRPREF to get/set preference
numbers for addresses. Make ifconfig(8) set/display preference
numbers.
To activate source-address selection policies in your kernel, add
'options IPSELSRC' to your kernel configuration.
Miscellaneous changes in support of source-address selection:
1 Factor out some common code, producing rt_replace_ifa().
2 Abbreviate a for-loop with TAILQ_FOREACH().
3 Add the predicates on IPv4 addresses IN_LINKLOCAL() and
IN_PRIVATE(), that are true for link-local unicast
(169.254/16) and RFC1918 private addresses, respectively.
Add the predicate IN_ANY_LOCAL() that is true for link-local
unicast and multicast.
4 Add IPv4-specific interface attach/detach routines,
in_domifattach and in_domifdetach, which build #ifdef
IPSELSRC.
See in_getifa(9) for a more thorough description of source-address
selection policy.
31 lines
669 B
C
31 lines
669 B
C
#ifndef _NETINET_IN_SELSRC_H
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#define _NETINET_IN_SELSRC_H
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#define IN_SELECTSRC_LEN 128
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#define IN_SCORE_SRC_MAX 8
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typedef int (*in_score_src_t)(const struct in_addr *src,
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int preference, int idx,
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const struct in_addr *dst);
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struct in_ifselsrc {
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uint32_t iss_seqno;
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in_score_src_t iss_score_src[IN_SCORE_SRC_MAX];
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};
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struct in_ifsysctl {
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struct ifnet *isc_ifp;
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struct sysctllog *isc_log;
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struct in_ifselsrc *isc_selsrc;
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};
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enum in_category {
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IN_CATEGORY_LINKLOCAL = 0,
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IN_CATEGORY_PRIVATE,
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IN_CATEGORY_OTHER
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};
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struct ifaddr *in_getifa(struct ifaddr *, const struct sockaddr *);
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#endif /* _NETINET_IN_SELSRC_H */
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