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network/route: fix reachability check when peer address is specified

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When an address with peer address is specified, the kernel by default
adds the prefix route for the peer address. When ManageForeignRoute=no
is set, then we also needs to check the prefix for the peer address.

Fixes #30403.

(cherry picked from commit e091ed405353624f2da28e2f3210e205f7eab370)
(cherry picked from commit b641ced147d94578375f5e25d616241fef195a4a)
This commit is contained in:
Yu Watanabe 2023-12-10 13:56:46 +09:00 committed by Luca Boccassi
parent fe62f214fe
commit 752b9b0f6c
1 changed files with 3 additions and 3 deletions
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6
src/network/networkd-route-util.c
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@ -153,9 +153,9 @@ bool gateway_is_ready(Link *link, bool onlink, int family, const union in_addr_u
continue; continue;
if (FLAGS_SET(a->flags, IFA_F_NOPREFIXROUTE)) if (FLAGS_SET(a->flags, IFA_F_NOPREFIXROUTE))
continue; continue;
if (in_addr_is_set(a->family, &a->in_addr_peer)) if (in_addr_prefix_covers(a->family,
continue; in_addr_is_set(a->family, &a->in_addr_peer) ? &a->in_addr_peer : &a->in_addr,
if (in_addr_prefix_covers(family, &a->in_addr, a->prefixlen, gw) > 0) a->prefixlen, gw) > 0)
return true; return true;
} }