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ovpn: improve 'no route to host' debug message

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When debugging a 'no route to host' error it can be beneficial
to know the address of the unreachable destination.
Print it along the debugging text.

While at it, add a missing parenthesis in a different debugging
message inside ovpn_peer_endpoints_update().

Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
This commit is contained in:
Antonio Quartulli 2025-05-09 15:32:13 +02:00
parent adcdaac57d
commit 0ca74dfabd
2 changed files with 13 additions and 3 deletions
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14
drivers/net/ovpn/io.c
View File

@ -394,8 +394,18 @@ netdev_tx_t ovpn_net_xmit(struct sk_buff *skb, struct net_device *dev)
/* retrieve peer serving the destination IP of this packet */
peer = ovpn_peer_get_by_dst(ovpn, skb);
if (unlikely(!peer)) {
net_dbg_ratelimited("%s: no peer to send data to\n",
netdev_name(ovpn->dev));
switch (skb->protocol) {
case htons(ETH_P_IP):
net_dbg_ratelimited("%s: no peer to send data to dst=%pI4\n",
netdev_name(ovpn->dev),
&ip_hdr(skb)->daddr);
break;
case htons(ETH_P_IPV6):
net_dbg_ratelimited("%s: no peer to send data to dst=%pI6c\n",
netdev_name(ovpn->dev),
&ipv6_hdr(skb)->daddr);
break;
}
goto drop;
}
/* dst was needed for peer selection - it can now be dropped */

2
drivers/net/ovpn/peer.c
View File

@ -258,7 +258,7 @@ void ovpn_peer_endpoints_update(struct ovpn_peer *peer, struct sk_buff *skb)
*/
if (unlikely(!ipv6_addr_equal(&bind->local.ipv6,
&ipv6_hdr(skb)->daddr))) {
net_dbg_ratelimited("%s: learning local IPv6 for peer %d (%pI6c -> %pI6c\n",
net_dbg_ratelimited("%s: learning local IPv6 for peer %d (%pI6c -> %pI6c)\n",
netdev_name(peer->ovpn->dev),
peer->id, &bind->local.ipv6,
&ipv6_hdr(skb)->daddr);