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Merge pull request #2699 from sworleys/Netlink-MTU-Check

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zebra: Add check for mtu on netlink RTM_NEWLINK
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Renato Westphal 2018-07-24 17:04:47 -03:00 committed by GitHub
commit 5d13cd0a93
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1 changed files with 12 additions and 0 deletions
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12
zebra/if_netlink.c
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@ -1230,6 +1230,12 @@ int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup)
/* Update interface information. */
set_ifindex(ifp, ifi->ifi_index, zns);
ifp->flags = ifi->ifi_flags & 0x0000fffff;
if (!tb[IFLA_MTU]) {
zlog_warn(
"RTM_NEWLINK for interface %s(%u) without MTU set",
name, ifi->ifi_index);
return 0;
}
ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]);
ifp->metric = 0;
ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN;
@ -1279,6 +1285,12 @@ int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup)
bridge_ifindex, ifi->ifi_flags);
set_ifindex(ifp, ifi->ifi_index, zns);
if (!tb[IFLA_MTU]) {
zlog_warn(
"RTM_NEWLINK for interface %s(%u) without MTU set",
name, ifi->ifi_index);
return 0;
}
ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]);
ifp->metric = 0;