diff options
Diffstat (limited to 'nuttx/net/uip/uip_icmpsend.c')
| -rw-r--r-- | nuttx/net/uip/uip_icmpsend.c | 60 |
1 files changed, 31 insertions, 29 deletions
diff --git a/nuttx/net/uip/uip_icmpsend.c b/nuttx/net/uip/uip_icmpsend.c index 8e68441f2..6acbf3176 100644 --- a/nuttx/net/uip/uip_icmpsend.c +++ b/nuttx/net/uip/uip_icmpsend.c @@ -1,7 +1,7 @@ /**************************************************************************** * net/uip/uip_icmsend.c * - * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * Redistribution and use in source and binary forms, with or without @@ -90,6 +90,8 @@ void uip_icmpsend(struct uip_driver_s *dev, uip_ipaddr_t *destaddr) { + struct uip_icmpip_hdr *picmp = ICMPBUF; + if (dev->d_sndlen > 0) { /* The total length to send is the size of the application data plus @@ -110,52 +112,52 @@ void uip_icmpsend(struct uip_driver_s *dev, uip_ipaddr_t *destaddr) #ifdef CONFIG_NET_IPv6 - ICMPBUF->vtc = 0x60; - ICMPBUF->tcf = 0x00; - ICMPBUF->flow = 0x00; - ICMPBUF->len[0] = (dev->d_sndlen >> 8); - ICMPBUF->len[1] = (dev->d_sndlen & 0xff); - ICMPBUF->nexthdr = UIP_PROTO_ICMP; - ICMPBUF->hoplimit = UIP_TTL; + picmp->vtc = 0x60; + picmp->tcf = 0x00; + picmp->flow = 0x00; + picmp->len[0] = (dev->d_sndlen >> 8); + picmp->len[1] = (dev->d_sndlen & 0xff); + picmp->nexthdr = UIP_PROTO_ICMP; + picmp->hoplimit = UIP_TTL; - uip_ipaddr_copy(ICMPBUF->srcipaddr, &dev->d_ipaddr); - uip_ipaddr_copy(ICMPBUF->destipaddr, destaddr); + uip_ipaddr_copy(picmp->srcipaddr, &dev->d_ipaddr); + uip_ipaddr_copy(picmp->destipaddr, destaddr); #else /* CONFIG_NET_IPv6 */ - ICMPBUF->vhl = 0x45; - ICMPBUF->tos = 0; - ICMPBUF->len[0] = (dev->d_len >> 8); - ICMPBUF->len[1] = (dev->d_len & 0xff); + picmp->vhl = 0x45; + picmp->tos = 0; + picmp->len[0] = (dev->d_len >> 8); + picmp->len[1] = (dev->d_len & 0xff); ++g_ipid; - ICMPBUF->ipid[0] = g_ipid >> 8; - ICMPBUF->ipid[1] = g_ipid & 0xff; - ICMPBUF->ipoffset[0] = UIP_TCPFLAG_DONTFRAG >> 8; - ICMPBUF->ipoffset[1] = UIP_TCPFLAG_DONTFRAG & 0xff; - ICMPBUF->ttl = UIP_TTL; - ICMPBUF->proto = UIP_PROTO_ICMP; + picmp->ipid[0] = g_ipid >> 8; + picmp->ipid[1] = g_ipid & 0xff; + picmp->ipoffset[0] = UIP_TCPFLAG_DONTFRAG >> 8; + picmp->ipoffset[1] = UIP_TCPFLAG_DONTFRAG & 0xff; + picmp->ttl = UIP_TTL; + picmp->proto = UIP_PROTO_ICMP; - uiphdr_ipaddr_copy(ICMPBUF->srcipaddr, &dev->d_ipaddr); - uiphdr_ipaddr_copy(ICMPBUF->destipaddr, destaddr); + uiphdr_ipaddr_copy(picmp->srcipaddr, &dev->d_ipaddr); + uiphdr_ipaddr_copy(picmp->destipaddr, destaddr); /* Calculate IP checksum. */ - ICMPBUF->ipchksum = 0; - ICMPBUF->ipchksum = ~(uip_ipchksum(dev)); + picmp->ipchksum = 0; + picmp->ipchksum = ~(uip_ipchksum(dev)); #endif /* CONFIG_NET_IPv6 */ /* Calculate the ICMP checksum. */ - ICMPBUF->icmpchksum = 0; - ICMPBUF->icmpchksum = ~(uip_icmpchksum(dev)); - if (ICMPBUF->icmpchksum == 0) + picmp->icmpchksum = 0; + picmp->icmpchksum = ~(uip_icmpchksum(dev)); + if (picmp->icmpchksum == 0) { - ICMPBUF->icmpchksum = 0xffff; + picmp->icmpchksum = 0xffff; } nvdbg("Outgoing ICMP packet length: %d (%d)\n", - dev->d_len, (ICMPBUF->len[0] << 8) | ICMPBUF->len[1]); + dev->d_len, (picmp->len[0] << 8) | picmp->len[1]); #ifdef CONFIG_NET_STATISTICS uip_stat.icmp.sent++; |