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net: l2: ethernet: ethernet support for AF_PACKET/SOCK_RAW/IPPROTO_RAW

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Setting the protocol type for raw IP packets to be sent so that they
can be passed to Ethernet.

Signed-off-by: Jani Hirsimäki <jani.hirsimaki@nordicsemi.no>
This commit is contained in:
Jani Hirsimäki 2022-12-12 11:41:53 +02:00 • committed by Carles Cufí
commit 5a93a25158
1 changed files with 15 additions and 0 deletions
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15
subsys/net/l2/ethernet/ethernet.c
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@ -667,6 +667,21 @@ static int ethernet_send(struct net_if *iface, struct net_pkt *pkt)
net_pkt_lladdr_src(pkt)->len =
sizeof(struct net_eth_addr);
ptype = dst_addr->sll_protocol;
} else if (context && net_context_get_type(context) == SOCK_RAW &&
net_context_get_proto(context) == IPPROTO_RAW) {
char type = (NET_IPV6_HDR(pkt)->vtc & 0xf0);
switch (type) {
case 0x60:
ptype = htons(NET_ETH_PTYPE_IPV6);
break;
case 0x40:
ptype = htons(NET_ETH_PTYPE_IP);
break;
default:
ret = -ENOTSUP;
goto error;
}
} else {
goto send;
}