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net: ipv4: Add a flags argument to iptunnel_xmit(), udp_tunnel_xmit_skb()

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iptunnel_xmit() erases the contents of the SKB control block. In order to
be able to set particular IPCB flags on the SKB, add a corresponding
parameter, and propagate it to udp_tunnel_xmit_skb() as well.

In one of the following patches, VXLAN driver will use this facility to
mark packets as subject to IP multicast routing.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/89c9daf9f2dc088b6b92ccebcc929f51742de91f.1750113335.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Petr Machata
2025-06-17 00:44:09 +02:00
committed by Jakub Kicinski
parent ccde40812a
commit e3411e326f
15 changed files with 33 additions and 24 deletions
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9
drivers/net/amt.c
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@@ -1046,7 +1046,8 @@ static bool amt_send_membership_update(struct amt_dev *amt,
amt->gw_port,
amt->relay_port,
false,
false);
false,
0);
amt_update_gw_status(amt, AMT_STATUS_SENT_UPDATE, true);
return false;
}
@@ -1103,7 +1104,8 @@ static void amt_send_multicast_data(struct amt_dev *amt,
amt->relay_port,
tunnel->source_port,
false,
false);
false,
0);
}
static bool amt_send_membership_query(struct amt_dev *amt,
@@ -1161,7 +1163,8 @@ static bool amt_send_membership_query(struct amt_dev *amt,
amt->relay_port,
tunnel->source_port,
false,
false);
false,
0);
amt_update_relay_status(tunnel, AMT_STATUS_SENT_QUERY, true);
return false;
}