bd40cb48d9
With these changes, dial up Zephyr application/driver can use socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW) for creating a socket for sending/receiving data to/from ppp net link, i.e. packet is going to/from PPP L2. Signed-off-by: Jani Hirsimäki <jani.hirsimaki@nordicsemi.no>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/** @file
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* @brief Packet Sockets related functions
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*/
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/*
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* Copyright (c) 2019 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <logging/log.h>
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LOG_MODULE_REGISTER(net_sockets_raw, CONFIG_NET_SOCKETS_LOG_LEVEL);
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#include <errno.h>
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#include <net/net_pkt.h>
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#include <net/net_context.h>
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#include <net/ethernet.h>
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#include <net/dsa.h>
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#include "connection.h"
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#include "packet_socket.h"
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enum net_verdict net_packet_socket_input(struct net_pkt *pkt, uint8_t proto)
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{
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#if IS_ENABLED(CONFIG_NET_DSA)
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/*
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* For DSA the master port is not supporting raw packets. Only the
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* lan1..3 are working with them.
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*/
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if (dsa_is_port_master(net_pkt_iface(pkt))) {
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return NET_CONTINUE;
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}
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#endif
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/* Currently we are skipping L2 layer verification and not
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* removing L2 header from packet.
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* TODO :
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* 1) Pass it through L2 layer, so that L2 will verify
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* that packet is intended to us or not and sets src and dst lladdr.
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* And L2 should not pull off L2 header when combination of socket
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* like this AF_PACKET, SOCK_RAW and ETH_P_ALL proto.
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* 2) Socket combination of AF_INET, SOCK_RAW, IPPROTO_RAW
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* packet has to go through L2 and L2 verfies it's header and removes
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* header. Only packet with L3 header will be given to socket.
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* 3) If user opens raw and non raw socket together, based on raw
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* socket combination packet has to be feed to raw socket and only
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* data part to be feed to non raw socket.
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*/
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net_pkt_set_family(pkt, AF_PACKET);
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return net_conn_input(pkt, NULL, proto, NULL);
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}
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