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net: iface: bypassing IP stack with SOCK_RAW sockets

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Bypass the IP stack and go directly to L2 with
SOCK_RAW/IPPROTO_RAW sockets in net_if_send_data().

Signed-off-by: Jani Hirsimäki <jani.hirsimaki@nordicsemi.no>
This commit is contained in:
Jani Hirsimäki 2023-02-13 11:30:11 +02:00 committed by Fabio Baltieri
parent f3661487da
commit f21051b728
1 changed files with 7 additions and 0 deletions
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7
subsys/net/ip/net_if.c
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@ -481,6 +481,13 @@ enum net_verdict net_if_send_data(struct net_if *iface, struct net_pkt *pkt)
}
#endif
/* Bypass the IP stack with SOCK_RAW/IPPROTO_RAW sockets */
if (IS_ENABLED(CONFIG_NET_SOCKETS_PACKET) &&
context && net_context_get_type(context) == SOCK_RAW &&
net_context_get_proto(context) == IPPROTO_RAW) {
goto done;
}
/* If the ll dst address is not set check if it is present in the nbr
* cache.
*/