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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2019-07-10 00:30:27 +0900 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2019-07-23 22:08:49 +0900 |
| commit | bd7d6cec331a00fed29d00c2498f04e83d70b19c (patch) | |
| tree | 495faf78eca59a669099379dd951272ace937ae8 | |
| parent | ad3f86e6a4e5f2d5d64c81f9a30f250b624284fa (diff) | |
| download | systemd-bd7d6cec331a00fed29d00c2498f04e83d70b19c.tar.gz | |
network: do not touch kernel-created multicast route
Fixes #6088.
| -rw-r--r-- | src/network/networkd-link.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index 8ca4583034..17829fca9f 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -2416,6 +2416,15 @@ static int link_drop_foreign_config(Link *link) { if (route->protocol == RTPROT_KERNEL) continue; + /* do not touch multicast route added by kernel */ + /* FIXME: Why the kernel adds this route with protocol RTPROT_BOOT??? We need to investigate that. + * https://tools.ietf.org/html/rfc4862#section-5.4 may explain why. */ + if (route->protocol == RTPROT_BOOT && + route->family == AF_INET6 && + route->dst_prefixlen == 8 && + in_addr_equal(AF_INET6, &route->dst, &(union in_addr_union) { .in6 = {{{ 0xff,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 }}} })) + continue; + if (route->protocol == RTPROT_STATIC && FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_STATIC)) continue; |