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networkd: fix attribute length for wireguard (#10380)

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This is actually a u16, not a u32, so the kernel complains:

kernel: netlink: 'systemd-network': attribute type 5 has an invalid length

This is due to:

if (nla_attr_len[pt->type] && attrlen != nla_attr_len[pt->type]) {
        pr_warn_ratelimited("netlink: '%s': attribute type %d has an invalid length.\n",
                            current->comm, type);
}

Presumably this has been working fine in functionality on little-endian
systems, but nobody bothered to try on big-endian systems.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2018-10-13 17:28:49 +09:00
committed by Yu Watanabe
parent b75f0c69b3
commit 7d0b26a027
2 changed files with 2 additions and 2 deletions
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src/network/netdev/wireguard.c
+1 -1
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@@ -107,7 +107,7 @@ static int set_wireguard_interface(NetDev *netdev) {
if (r < 0)
break;
r = sd_netlink_message_append_u32(message, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL, peer->persistent_keepalive_interval);
r = sd_netlink_message_append_u16(message, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL, peer->persistent_keepalive_interval);
if (r < 0)
break;