diff options
Diffstat (limited to 'nuttx/net/uip/uip_igmpsend.c')
| -rw-r--r-- | nuttx/net/uip/uip_igmpsend.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/nuttx/net/uip/uip_igmpsend.c b/nuttx/net/uip/uip_igmpsend.c deleted file mode 100644 index f22282b62..000000000 --- a/nuttx/net/uip/uip_igmpsend.c +++ /dev/null @@ -1,182 +0,0 @@ -/**************************************************************************** - * net/uip/uip_igmpsend.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <debug.h> -#include <arpa/inet.h> - -#include <nuttx/net/uip/uipopt.h> -#include <nuttx/net/uip/uip.h> -#include <nuttx/net/uip/uip-arch.h> -#include <nuttx/net/uip/uip-ipopt.h> -#include <nuttx/net/uip/uip-igmp.h> - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/* Debug */ - -#undef IGMP_DUMPPKT /* Define to enable packet dump */ - -#ifndef CONFIG_DEBUG_NET -# undef IGMP_DUMPPKT -#endif - -#ifdef IGMP_DUMPPKT -# define igmp_dumppkt(b,n) lib_dumpbuffer("IGMP", (FAR const uint8_t*)(b), (n)) -#else -# define igmp_dumppkt(b,n) -#endif - -/* Buffer layout */ - -#define RASIZE (4) -#define IGMPBUF ((struct uip_igmphdr_s *)&dev->d_buf[UIP_LLH_LEN]) - -/**************************************************************************** - * Public Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -static uint16_t uip_igmpchksum(FAR uint8_t *buffer, int buflen) -{ - uint16_t sum = uip_chksum((FAR uint16_t*)buffer, buflen); - return sum ? sum : 0xffff; -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmpsend - * - * Description: - * Sends an IGMP IP packet on a network interface. This function constructs - * the IP header and calculates the IP header checksum. - * - * Parameters: - * dev - The device driver structure to use in the send operation. - * group - Describes the multicast group member and identifies the message - * to be sent. - * destipaddr - The IP address of the recipient of the message - * - * Return: - * None - * - * Assumptions: - * Called from the interrupt level or with interrupts disabled. - * - ****************************************************************************/ - -void uip_igmpsend(FAR struct uip_driver_s *dev, FAR struct igmp_group_s *group, - FAR uip_ipaddr_t *destipaddr) -{ - nllvdbg("msgid: %02x destipaddr: %08x\n", group->msgid, (int)*destipaddr); - - /* The total length to send is the size of the IP and IGMP headers and 4 - * bytes for the ROUTER ALERT (and, eventually, the ethernet header) - */ - - dev->d_len = UIP_IPIGMPH_LEN; - - /* The total size of the data is the size of the IGMP header */ - - dev->d_sndlen = UIP_IGMPH_LEN; - - /* Add the router alert option */ - - IGMPBUF->ra[0] = HTONS(IPOPT_RA >> 16); - IGMPBUF->ra[1] = HTONS(IPOPT_RA & 0xffff); - - /* Initialize the IPv4 header */ - - IGMPBUF->vhl = 0x46; /* 4->IP; 6->24 bytes */ - IGMPBUF->tos = 0; - IGMPBUF->len[0] = (dev->d_len >> 8); - IGMPBUF->len[1] = (dev->d_len & 0xff); - ++g_ipid; - IGMPBUF->ipid[0] = g_ipid >> 8; - IGMPBUF->ipid[1] = g_ipid & 0xff; - IGMPBUF->ipoffset[0] = UIP_TCPFLAG_DONTFRAG >> 8; - IGMPBUF->ipoffset[1] = UIP_TCPFLAG_DONTFRAG & 0xff; - IGMPBUF->ttl = IGMP_TTL; - IGMPBUF->proto = UIP_PROTO_IGMP; - - uiphdr_ipaddr_copy(IGMPBUF->srcipaddr, &dev->d_ipaddr); - uiphdr_ipaddr_copy(IGMPBUF->destipaddr, destipaddr); - - /* Calculate IP checksum. */ - - IGMPBUF->ipchksum = 0; - IGMPBUF->ipchksum = ~uip_igmpchksum((FAR uint8_t *)IGMPBUF, UIP_IPH_LEN + RASIZE); - - /* Set up the IGMP message */ - - IGMPBUF->type = group->msgid; - IGMPBUF->maxresp = 0; - uiphdr_ipaddr_copy(IGMPBUF->grpaddr, &group->grpaddr); - - /* Calculate the IGMP checksum. */ - - IGMPBUF->chksum = 0; - IGMPBUF->chksum = ~uip_igmpchksum(&IGMPBUF->type, UIP_IPIGMPH_LEN); - - IGMP_STATINCR(uip_stat.igmp.poll_send); - IGMP_STATINCR(uip_stat.ip.sent); - - nllvdbg("Outgoing IGMP packet length: %d (%d)\n", - dev->d_len, (IGMPBUF->len[0] << 8) | IGMPBUF->len[1]); - igmp_dumppkt(RA, UIP_IPIGMPH_LEN + RASIZE); -} - -#endif /* CONFIG_NET_IGMP */ |