a9a2b3ea91
This commit adds packet socket support to socket api. This version supports basic packet socket features. Protocol family is AF_PACKET, type of socket is SOCK_RAW and proto type is ETH_P_ALL. The user will receive every packet (with L2 header) on the wire. For TX, the subsystem expects that the user has set all the protocol headers (L2 and L3) properly. Networking subsystem doesn't verify or alter the headers while sending or receiving the packets. This version supports packet socket over Etherent only. Also combination of other family and protocols doesn't work (i.e. Application can not open packet-socket and non packet-socket together). Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
43 lines
1.3 KiB
C
43 lines
1.3 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 "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)
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{
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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, ETH_P_ALL, NULL);
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}
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