87cf5c58ae
Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>
Ran nxstyle against many of the affected files. But this job was too big for today. Many of the network drivers under arch are highly non-compiant and generate many, many faults from nxstyle. Those will have to be visited again another day.
Author: Xiang Xiao <xiaoxiang@xiaomi.com>
This effects all network drivers as well as timing related portions of net/: devif_poll_tcp_timer shouldn't be skipped in the multiple card case. devif_timer will be called multiple time in one period if the multiple card exist, the elapsed time calculated for the first callback is right, but the flowing callback in the same period is wrong(very short) because the global variable g_polltimer is used in the calculation. So let's pass the delay time to devif_timer and remove g_polltimer.
802 lines
23 KiB
C
802 lines
23 KiB
C
/****************************************************************************
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* net/devif/devif_poll.c
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*
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* Copyright (C) 2007-2010, 2012, 2014, 2016-2019 Gregory Nutt. All rights
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* reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_NET
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#include <debug.h>
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#include <nuttx/clock.h>
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#include <nuttx/net/netconfig.h>
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#include <nuttx/net/netdev.h>
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#include <nuttx/net/net.h>
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#include "devif/devif.h"
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#include "arp/arp.h"
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#include "tcp/tcp.h"
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#include "udp/udp.h"
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#include "pkt/pkt.h"
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#include "bluetooth/bluetooth.h"
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#include "ieee802154/ieee802154.h"
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#include "icmp/icmp.h"
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#include "igmp/igmp.h"
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#include "icmpv6/icmpv6.h"
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#include "mld/mld.h"
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#include "ipforward/ipforward.h"
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#include "sixlowpan/sixlowpan.h"
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/****************************************************************************
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* Private Types
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****************************************************************************/
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enum devif_packet_type
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{
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DEVIF_PKT = 0,
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DEVIF_ICMP,
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DEVIF_IGMP,
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DEVIF_TCP,
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DEVIF_UDP,
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DEVIF_ICMP6
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: devif_packet_conversion
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*
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* Description:
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* Generic output conversion hook. Only needed for IEEE802.15.4 (and
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* other non-standard packet radios) for now but this is a point where
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* support for other conversions may be provided.
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*
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* TCP output comes through three different mechansims. Either from:
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*
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* 1. TCP socket output. For the case of TCP output to a radio,
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* the TCP output is caught in the socket send()/sendto() logic and
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* redirected to 6LoWPAN logic.
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* 2. TCP output from the TCP state machine. That will occur
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* during TCP packet processing by the TCP state meachine.
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* 3. TCP output resulting from TX or timer polling
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*
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* Cases 2 is handled here. Logic here detected if (1) an attempt
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* to return with d_len > 0 and (2) that the device is a radio
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* network driver. Under those conditions, 6LoWPAN logic will be called
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* to create the radio frames.
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*
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* All outgoing ICMPv6 messages come through one of two mechanisms:
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*
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* 1. The output from internal ICMPv6 message passing. These outgoing
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* messages will use device polling and will be handled here.
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* 2. ICMPv6 output resulting from TX or timer polling.
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*
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* Assumptions:
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* The network is locked.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_6LOWPAN
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static void devif_packet_conversion(FAR struct net_driver_s *dev,
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enum devif_packet_type pkttype)
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{
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if (dev->d_len > 0)
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{
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/* Check if this is a device served by 6LoWPAN */
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if (dev->d_lltype == NET_LL_IEEE802154 ||
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dev->d_lltype == NET_LL_PKTRADIO)
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{
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FAR struct ipv6_hdr_s *ipv6 = (FAR struct ipv6_hdr_s *)dev->d_buf;
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#ifdef CONFIG_NET_IPv4
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if ((ipv6->vtc & IP_VERSION_MASK) != IPv6_VERSION)
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{
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nerr("ERROR: IPv6 version error: %02x... Packet dropped\n",
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ipv6->vtc);
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}
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else
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#endif
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#ifdef CONFIG_NET_TCP
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if (pkttype == DEVIF_TCP)
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{
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/* This packet came from a response to TCP polling and is
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* directed to an radio driver using 6LoWPAN. Verify that the
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* outgoing packet is IPv6 with TCP protocol.
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*/
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if (ipv6->proto == IP_PROTO_TCP)
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{
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/* Let 6LoWPAN convert IPv6 TCP output into radio frames. */
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sixlowpan_tcp_send(dev, dev, ipv6);
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}
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else
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{
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nerr("ERROR: TCP protocol error: %u... Packet dropped\n",
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ipv6->proto);
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}
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}
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else
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#endif
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#ifdef CONFIG_NET_ICMPv6
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if (pkttype == DEVIF_ICMP6)
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{
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/* This packet came from a response to ICMPv6 polling and is
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* directed to a radio using 6LoWPAN. Verify that the outgoing
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* packet is IPv6 with TCP protocol.
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*/
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if (ipv6->proto == IP_PROTO_ICMP6)
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{
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/* Let 6LoWPAN convert IPv6 ICMPv6 output into radio frames. */
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sixlowpan_icmpv6_send(dev, dev, ipv6);
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}
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else
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{
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nerr("ERROR: ICMPv6 protocol error: %u... Packet dropped\n",
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ipv6->proto);
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}
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}
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else
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#endif
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{
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nerr("ERROR: Unhandled packet dropped. pkttype=%u protocol=%u\n",
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pkttype, ipv6->proto);
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}
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UNUSED(ipv6);
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dev->d_len = 0;
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}
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}
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}
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#else
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# define devif_packet_conversion(dev,pkttype)
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#endif /* CONFIG_NET_6LOWPAN */
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/****************************************************************************
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* Name: devif_poll_pkt_connections
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*
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* Description:
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* Poll all packet connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_PKT
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static int devif_poll_pkt_connections(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct pkt_conn_s *pkt_conn = NULL;
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int bstop = 0;
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/* Traverse all of the allocated packet connections and perform the poll action */
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while (!bstop && (pkt_conn = pkt_nextconn(pkt_conn)))
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{
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/* Perform the packet TX poll */
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pkt_poll(dev, pkt_conn);
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/* Perform any necessary conversions on outgoing packets */
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devif_packet_conversion(dev, DEVIF_PKT);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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return bstop;
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}
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#endif /* CONFIG_NET_PKT */
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/****************************************************************************
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* Name: devif_poll_bluetooth_connections
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*
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* Description:
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* Poll all packet connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_BLUETOOTH
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static int devif_poll_bluetooth_connections(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct bluetooth_conn_s *bluetooth_conn = NULL;
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int bstop = 0;
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/* Traverse all of the allocated packet connections and perform the poll action */
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while (!bstop && (bluetooth_conn = bluetooth_conn_next(bluetooth_conn)))
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{
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/* Perform the packet TX poll */
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bluetooth_poll(dev, bluetooth_conn);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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return bstop;
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}
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#endif /* CONFIG_NET_BLUETOOTH */
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/****************************************************************************
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* Name: devif_poll_ieee802154_connections
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*
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* Description:
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* Poll all packet connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IEEE802154
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static int devif_poll_ieee802154_connections(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct ieee802154_conn_s *ieee802154_conn = NULL;
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int bstop = 0;
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/* Traverse all of the allocated packet connections and perform the poll action */
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while (!bstop && (ieee802154_conn = ieee802154_conn_next(ieee802154_conn)))
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{
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/* Perform the packet TX poll */
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ieee802154_poll(dev, ieee802154_conn);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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return bstop;
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}
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#endif /* CONFIG_NET_IEEE802154 */
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/****************************************************************************
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* Name: devif_poll_icmp
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*
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* Description:
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* Poll all of the connections waiting to send an ICMP ECHO request
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*
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****************************************************************************/
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#if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_SOCKET)
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static inline int devif_poll_icmp(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct icmp_conn_s *conn = NULL;
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int bstop = 0;
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/* Traverse all of the allocated ICMP connections and perform the poll action */
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while (!bstop && (conn = icmp_nextconn(conn)) != NULL)
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{
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/* Perform the ICMP poll */
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icmp_poll(dev, conn);
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/* Perform any necessary conversions on outgoing packets */
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devif_packet_conversion(dev, DEVIF_ICMP);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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return bstop;
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}
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#endif /* CONFIG_NET_ICMP && CONFIG_NET_ICMP_SOCKET */
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/****************************************************************************
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* Name: devif_poll_icmpv6
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*
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* Description:
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* Poll all of the connections waiting to send an ICMPv6 ECHO request
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*
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****************************************************************************/
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#if defined(CONFIG_NET_ICMPv6_SOCKET) || defined(CONFIG_NET_ICMPv6_NEIGHBOR)
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static inline int devif_poll_icmpv6(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct icmpv6_conn_s *conn = NULL;
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int bstop = 0;
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/* Traverse all of the allocated ICMPV6 connections and perform the poll action */
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do
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{
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/* Perform the ICMPV6 poll
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* Note: conn equal NULL in the first iteration means poll dev's callback list
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* since icmpv6_autoconfig and icmpv6_neighbor still append it's callback into
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* this list.
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*/
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icmpv6_poll(dev, conn);
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/* Perform any necessary conversions on outgoing packets */
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devif_packet_conversion(dev, DEVIF_ICMP6);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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while (!bstop && (conn = icmpv6_nextconn(conn)) != NULL);
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return bstop;
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}
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#endif /* CONFIG_NET_ICMPv6_SOCKET || CONFIG_NET_ICMPv6_NEIGHBOR*/
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/****************************************************************************
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* Name: devif_poll_forward
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*
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* Description:
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* Poll the device event to see if any task is waiting to forward a packet.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPFORWARD
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static inline int devif_poll_forward(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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/* Perform the forwarding poll */
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ipfwd_poll(dev);
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/* NOTE: that 6LoWPAN packet conversions are handled differently for
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* forwarded packets. That is because we don't know what the packet
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* type is at this point; not within peeking into the device's d_buf.
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*/
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/* Call back into the driver */
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return callback(dev);
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}
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#endif /* CONFIG_NET_ICMPv6_SOCKET || CONFIG_NET_ICMPv6_NEIGHBOR*/
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/****************************************************************************
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* Name: devif_poll_igmp
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*
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* Description:
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* Poll all IGMP connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IGMP
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static inline int devif_poll_igmp(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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/* Perform the IGMP TX poll */
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igmp_poll(dev);
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/* Perform any necessary conversions on outgoing packets */
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devif_packet_conversion(dev, DEVIF_IGMP);
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/* Call back into the driver */
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return callback(dev);
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}
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#endif /* CONFIG_NET_IGMP */
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/****************************************************************************
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* Name: devif_poll_mld
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*
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* Description:
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* Poll all MLD connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_MLD
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static inline int devif_poll_mld(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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/* Perform the MLD TX poll */
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mld_poll(dev);
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/* Perform any necessary conversions on outgoing ICMPv6 packets */
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devif_packet_conversion(dev, DEVIF_ICMP6);
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/* Call back into the driver */
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return callback(dev);
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}
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#endif /* CONFIG_NET_MLD */
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/****************************************************************************
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* Name: devif_poll_udp_connections
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*
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* Description:
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* Poll all UDP connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef NET_UDP_HAVE_STACK
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static int devif_poll_udp_connections(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct udp_conn_s *conn = NULL;
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int bstop = 0;
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/* Traverse all of the allocated UDP connections and perform the poll action */
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while (!bstop && (conn = udp_nextconn(conn)))
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{
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/* Perform the UDP TX poll */
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udp_poll(dev, conn);
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/* Perform any necessary conversions on outgoing packets */
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devif_packet_conversion(dev, DEVIF_UDP);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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return bstop;
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}
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#endif /* NET_UDP_HAVE_STACK */
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|
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/****************************************************************************
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* Name: devif_poll_tcp_connections
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*
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* Description:
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* Poll all UDP connections for available packets to send.
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*
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* Assumptions:
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* This function is called from the MAC device driver with the network
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* locked.
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*
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****************************************************************************/
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#ifdef NET_TCP_HAVE_STACK
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static inline int devif_poll_tcp_connections(FAR struct net_driver_s *dev,
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devif_poll_callback_t callback)
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{
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FAR struct tcp_conn_s *conn = NULL;
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int bstop = 0;
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/* Traverse all of the active TCP connections and perform the poll action */
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while (!bstop && (conn = tcp_nextconn(conn)))
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{
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/* Perform the TCP TX poll */
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tcp_poll(dev, conn);
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/* Perform any necessary conversions on outgoing packets */
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devif_packet_conversion(dev, DEVIF_TCP);
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/* Call back into the driver */
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bstop = callback(dev);
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}
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return bstop;
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}
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#else
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# define devif_poll_tcp_connections(dev, callback) (0)
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#endif
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/****************************************************************************
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* Name: devif_poll_tcp_timer
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*
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* Description:
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* The TCP timer has expired. Update TCP timing state in each active,
|
|
* TCP connection.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from the MAC device driver with the network
|
|
* locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
static inline int devif_poll_tcp_timer(FAR struct net_driver_s *dev,
|
|
devif_poll_callback_t callback,
|
|
int hsec)
|
|
{
|
|
FAR struct tcp_conn_s *conn = NULL;
|
|
int bstop = 0;
|
|
|
|
/* Traverse all of the active TCP connections and perform the poll action. */
|
|
|
|
while (!bstop && (conn = tcp_nextconn(conn)))
|
|
{
|
|
/* Perform the TCP timer poll */
|
|
|
|
tcp_timer(dev, conn, hsec);
|
|
|
|
/* Perform any necessary conversions on outgoing packets */
|
|
|
|
devif_packet_conversion(dev, DEVIF_TCP);
|
|
|
|
/* Call back into the driver */
|
|
|
|
bstop = callback(dev);
|
|
}
|
|
|
|
return bstop;
|
|
}
|
|
#else
|
|
# define devif_poll_tcp_timer(dev, callback, hsec) (0)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: devif_poll
|
|
*
|
|
* Description:
|
|
* This function will traverse each active network connection structure and
|
|
* will perform network polling operations. devif_poll() may be called
|
|
* asynchronously with the network driver can accept another outgoing
|
|
* packet.
|
|
*
|
|
* This function will call the provided callback function for every active
|
|
* connection. Polling will continue until all connections have been polled
|
|
* or until the user-supplied function returns a non-zero value (which it
|
|
* should do only if it cannot accept further write data).
|
|
*
|
|
* When the callback function is called, there may be an outbound packet
|
|
* waiting for service in the device packet buffer, and if so the d_len field
|
|
* is set to a value larger than zero. The device driver should then send
|
|
* out the packet.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from the MAC device driver with the network
|
|
* locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int devif_poll(FAR struct net_driver_s *dev, devif_poll_callback_t callback)
|
|
{
|
|
int bstop = false;
|
|
|
|
/* Traverse all of the active packet connections and perform the poll
|
|
* action.
|
|
*/
|
|
|
|
#ifdef CONFIG_NET_ARP_SEND
|
|
/* Check for pending ARP requests */
|
|
|
|
bstop = arp_poll(dev, callback);
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef CONFIG_NET_PKT
|
|
{
|
|
/* Check for pending packet socket transfer */
|
|
|
|
bstop = devif_poll_pkt_connections(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef CONFIG_NET_BLUETOOTH
|
|
{
|
|
/* Check for pending PF_BLUETOOTH socket transfer */
|
|
|
|
bstop = devif_poll_bluetooth_connections(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef CONFIG_NET_IEEE802154
|
|
{
|
|
/* Check for pending PF_IEEE802154 socket transfer */
|
|
|
|
bstop = devif_poll_ieee802154_connections(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef CONFIG_NET_IGMP
|
|
{
|
|
/* Check for pending IGMP messages */
|
|
|
|
bstop = devif_poll_igmp(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef CONFIG_NET_MLD
|
|
{
|
|
/* Check for pending MLD messages */
|
|
|
|
bstop = devif_poll_mld(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
{
|
|
/* Traverse all of the active TCP connections and perform the poll
|
|
* action.
|
|
*/
|
|
|
|
bstop = devif_poll_tcp_connections(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
{
|
|
/* Traverse all of the allocated UDP connections and perform
|
|
* the poll action
|
|
*/
|
|
|
|
bstop = devif_poll_udp_connections(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_SOCKET)
|
|
{
|
|
/* Traverse all of the tasks waiting to send an ICMP ECHO request. */
|
|
|
|
bstop = devif_poll_icmp(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#if defined(CONFIG_NET_ICMPv6_SOCKET) || defined(CONFIG_NET_ICMPv6_NEIGHBOR)
|
|
{
|
|
/* Traverse all of the tasks waiting to send an ICMPv6 ECHO request. */
|
|
|
|
bstop = devif_poll_icmpv6(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
#ifdef CONFIG_NET_IPFORWARD
|
|
{
|
|
/* Traverse all of the tasks waiting to forward a packet to this device. */
|
|
|
|
bstop = devif_poll_forward(dev, callback);
|
|
}
|
|
|
|
if (!bstop)
|
|
#endif
|
|
{
|
|
/* Nothing more to do */
|
|
}
|
|
|
|
return bstop;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: devif_timer
|
|
*
|
|
* Description:
|
|
* These function will traverse each active network connection structure and
|
|
* perform network timer operations. The Ethernet driver MUST implement
|
|
* logic to periodically call devif_timer().
|
|
*
|
|
* This function will call the provided callback function for every active
|
|
* connection. Polling will continue until all connections have been polled
|
|
* or until the user-supplied function returns a non-zero value (which it
|
|
* should do only if it cannot accept further write data).
|
|
*
|
|
* When the callback function is called, there may be an outbound packet
|
|
* waiting for service in the device packet buffer, and if so the d_len field
|
|
* is set to a value larger than zero. The device driver should then send
|
|
* out the packet.
|
|
*
|
|
* Assumptions:
|
|
* This function is called from the MAC device driver with the network
|
|
* locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int devif_timer(FAR struct net_driver_s *dev, int delay,
|
|
devif_poll_callback_t callback)
|
|
{
|
|
int hsec = TICK2HSEC(delay);
|
|
int bstop = false;
|
|
|
|
#ifdef CONFIG_NET_IPv4_REASSEMBLY
|
|
/* Increment the timer used by the IP reassembly logic */
|
|
|
|
if (g_reassembly_timer != 0 &&
|
|
g_reassembly_timer < CONFIG_NET_IPv4_REASS_MAXAGE)
|
|
{
|
|
g_reassembly_timer += hsec;
|
|
}
|
|
#endif
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
/* Traverse all of the active TCP connections and perform the
|
|
* timer action.
|
|
*/
|
|
|
|
bstop = devif_poll_tcp_timer(dev, callback, hsec);
|
|
#endif
|
|
|
|
/* If possible, continue with a normal poll checking for pending
|
|
* network driver actions.
|
|
*/
|
|
|
|
if (!bstop)
|
|
{
|
|
bstop = devif_poll(dev, callback);
|
|
}
|
|
|
|
return bstop;
|
|
}
|
|
|
|
#endif /* CONFIG_NET */
|