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routing: fix source address selection rules for IPv4 over IPv6.

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Current logic always selects an IFA of the same family from the
 outgoing interfaces. In IPv4 over IPv6 setup there can be just
 single non-127.0.0.1 ifa, attached to the loopback interface.

Create a separate rt_getifa_family() to handle entire ifa selection
 for the IPv4 over IPv6.

Differential Revision: https://reviews.freebsd.org/D31868
MFC after:	1 week
This commit is contained in:
Alexander V. Chernikov
2021-09-06 22:08:15 +00:00
committed by Sebastian Huber
parent 070f1b552c
commit 7846249e1a
1 changed files with 1 additions and 0 deletions
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cpukit/include/machine/_kernel_in.h
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@@ -52,6 +52,7 @@ int in_canforward(struct in_addr);
int in_localaddr(struct in_addr);
int in_localip(struct in_addr);
int in_ifhasaddr(struct ifnet *, struct in_addr);
struct in_ifaddr *in_findlocal(uint32_t, bool);
int inet_aton(const char *, struct in_addr *); /* in libkern */
char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */
char *inet_ntop(int, const void *, char *, socklen_t); /* in libkern */