1a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* 2a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * Copyright 2011 Daniel Drown 3a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * 4a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * Licensed under the Apache License, Version 2.0 (the "License"); 5a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * you may not use this file except in compliance with the License. 6a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * You may obtain a copy of the License at 7a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * 8a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * http://www.apache.org/licenses/LICENSE-2.0 9a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * 10a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * Unless required by applicable law or agreed to in writing, software 11a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * distributed under the License is distributed on an "AS IS" BASIS, 12a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * See the License for the specific language governing permissions and 14a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * limitations under the License. 15a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * 16a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown * dump.c - print various headers for debugging 17a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown */ 18a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <stdio.h> 19a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <stdint.h> 20d90841824dc00f65a48a789396c7f428807432caLorenzo Colitti#include <stdlib.h> 21a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 22a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <arpa/inet.h> 23a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/in.h> 24a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/ip.h> 25a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/ip_icmp.h> 26a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/udp.h> 27a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/tcp.h> 28a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/ip6.h> 29a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <netinet/icmp6.h> 30a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include <linux/icmp.h> 31a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 32f68200ab1a5c559866a87e51d0d52e3c74b02343Lorenzo Colitti#include "debug.h" 33a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include "checksum.h" 34a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include "clatd.h" 35a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#include "logging.h" 36a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 37f68200ab1a5c559866a87e51d0d52e3c74b02343Lorenzo Colitti#if CLAT_DEBUG 38f68200ab1a5c559866a87e51d0d52e3c74b02343Lorenzo Colitti 39a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print ip header */ 40a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drownvoid dump_ip(struct iphdr *header) { 41a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown u_int16_t frag_flags; 42a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown char addrstr[INET6_ADDRSTRLEN]; 43a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 44a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown frag_flags = ntohs(header->frag_off); 45a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 46a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("IP packet\n"); 47a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("header_len = %x\n",header->ihl); 48a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("version = %x\n",header->version); 49a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("tos = %x\n",header->tos); 50a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("tot_len = %x\n",ntohs(header->tot_len)); 51a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("id = %x\n",ntohs(header->id)); 52a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("frag: "); 53a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(frag_flags & IP_RF) { 54a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("(RF) "); 55a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 56a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(frag_flags & IP_DF) { 57a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("DF "); 58a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 59a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(frag_flags & IP_MF) { 60a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("MF "); 61a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 62a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("offset = %x\n",frag_flags & IP_OFFMASK); 63a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("ttl = %x\n",header->ttl); 64a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("protocol = %x\n",header->protocol); 65a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("checksum = %x\n",ntohs(header->check)); 66a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown inet_ntop(AF_INET, &header->saddr, addrstr, sizeof(addrstr)); 67a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("saddr = %s\n",addrstr); 68a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown inet_ntop(AF_INET, &header->daddr, addrstr, sizeof(addrstr)); 69a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("daddr = %s\n",addrstr); 70a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 71a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 72a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print ip6 header */ 73a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drownvoid dump_ip6(struct ip6_hdr *header) { 74a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown char addrstr[INET6_ADDRSTRLEN]; 75a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 76a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("ipv6\n"); 77a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("version = %x\n",header->ip6_vfc >> 4); 78a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("traffic class = %x\n",header->ip6_flow >> 20); 79a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("flow label = %x\n",ntohl(header->ip6_flow & 0x000fffff)); 80a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("payload len = %x\n",ntohs(header->ip6_plen)); 81a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("next header = %x\n",header->ip6_nxt); 82a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("hop limit = %x\n",header->ip6_hlim); 83a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 84a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown inet_ntop(AF_INET6, &header->ip6_src, addrstr, sizeof(addrstr)); 85a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("source = %s\n",addrstr); 86a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 87a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown inet_ntop(AF_INET6, &header->ip6_dst, addrstr, sizeof(addrstr)); 88a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("dest = %s\n",addrstr); 89a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 90a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 91a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print icmp header */ 92a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drownvoid dump_icmp(struct icmphdr *icmp) { 93a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("ICMP\n"); 94a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 95a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp.type = %x ",icmp->type); 96a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(icmp->type == ICMP_ECHOREPLY) { 97a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("echo reply"); 98a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } else if(icmp->type == ICMP_ECHO) { 99a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("echo request"); 100a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } else { 101a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("other"); 102a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 103a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("\n"); 104a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp.code = %x\n",icmp->code); 105a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp.checksum = %x\n",ntohs(icmp->checksum)); 106a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(icmp->type == ICMP_ECHOREPLY || icmp->type == ICMP_ECHO) { 107a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp.un.echo.id = %x\n",ntohs(icmp->un.echo.id)); 108a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp.un.echo.sequence = %x\n",ntohs(icmp->un.echo.sequence)); 109a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 110a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 111a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 112a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print icmp6 header */ 113a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drownvoid dump_icmp6(struct icmp6_hdr *icmp6) { 114a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("ICMP6\n"); 115a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("type = %x",icmp6->icmp6_type); 116a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(icmp6->icmp6_type == ICMP6_ECHO_REQUEST) { 117a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("(echo request)"); 118a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } else if(icmp6->icmp6_type == ICMP6_ECHO_REPLY) { 119a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("(echo reply)"); 120a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 121a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("\n"); 122a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("code = %x\n",icmp6->icmp6_code); 123a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 124a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("checksum = %x\n",icmp6->icmp6_cksum); 125a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 126a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if((icmp6->icmp6_type == ICMP6_ECHO_REQUEST) || (icmp6->icmp6_type == ICMP6_ECHO_REPLY)) { 127a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp6_id = %x\n",icmp6->icmp6_id); 128a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("icmp6_seq = %x\n",icmp6->icmp6_seq); 129a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 130a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 131a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 132a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print udp header */ 133fcac410fa15613873a07143ccd46470b869346a3Brian Carlstromvoid dump_udp_generic(const struct udphdr *udp, uint32_t temp_checksum, 134fcac410fa15613873a07143ccd46470b869346a3Brian Carlstrom const uint8_t *payload, size_t payload_size) { 135a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown uint16_t my_checksum; 136a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 137a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown temp_checksum = ip_checksum_add(temp_checksum, udp, sizeof(struct udphdr)); 138a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown temp_checksum = ip_checksum_add(temp_checksum, payload, payload_size); 139a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown my_checksum = ip_checksum_finish(temp_checksum); 140a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 141a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("UDP\n"); 142a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("source = %x\n",ntohs(udp->source)); 143a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("dest = %x\n",ntohs(udp->dest)); 144a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("len = %x\n",ntohs(udp->len)); 145a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("check = %x (mine %x)\n",udp->check,my_checksum); 146a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 147a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 148a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print ipv4/udp header */ 149fcac410fa15613873a07143ccd46470b869346a3Brian Carlstromvoid dump_udp(const struct udphdr *udp, const struct iphdr *ip, 150fcac410fa15613873a07143ccd46470b869346a3Brian Carlstrom const uint8_t *payload, size_t payload_size) { 151a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown uint32_t temp_checksum; 15207f0265830fcae2632159e9993b93a161d7ea23bLorenzo Colitti temp_checksum = ipv4_pseudo_header_checksum(ip, sizeof(*udp) + payload_size); 153a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown dump_udp_generic(udp, temp_checksum, payload, payload_size); 154a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 155a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 156a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print ipv6/udp header */ 157fcac410fa15613873a07143ccd46470b869346a3Brian Carlstromvoid dump_udp6(const struct udphdr *udp, const struct ip6_hdr *ip6, 158fcac410fa15613873a07143ccd46470b869346a3Brian Carlstrom const uint8_t *payload, size_t payload_size) { 159a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown uint32_t temp_checksum; 16007f0265830fcae2632159e9993b93a161d7ea23bLorenzo Colitti temp_checksum = ipv6_pseudo_header_checksum(ip6, sizeof(*udp) + payload_size, IPPROTO_UDP); 161a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown dump_udp_generic(udp, temp_checksum, payload, payload_size); 162a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 163a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 164a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print tcp header */ 165d44fac888a441cf21111358f43384f3942399d5dLorenzo Colittivoid dump_tcp_generic(const struct tcphdr *tcp, const uint8_t *options, size_t options_size, uint32_t temp_checksum, const uint8_t *payload, size_t payload_size) { 166a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown uint16_t my_checksum; 167a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 168a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown temp_checksum = ip_checksum_add(temp_checksum, tcp, sizeof(struct tcphdr)); 169a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(options) { 170a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown temp_checksum = ip_checksum_add(temp_checksum, options, options_size); 171a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 172a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown temp_checksum = ip_checksum_add(temp_checksum, payload, payload_size); 173a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown my_checksum = ip_checksum_finish(temp_checksum); 174a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 175a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("TCP\n"); 176a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("source = %x\n",ntohs(tcp->source)); 177a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("dest = %x\n",ntohs(tcp->dest)); 178a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("seq = %x\n",ntohl(tcp->seq)); 179a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("ack = %x\n",ntohl(tcp->ack_seq)); 180a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("d_off = %x\n",tcp->doff); 181a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("res1 = %x\n",tcp->res1); 182a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#ifdef __BIONIC__ 183a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("CWR = %x\n",tcp->cwr); 184a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("ECE = %x\n",tcp->ece); 185a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#else 186a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("CWR/ECE = %x\n",tcp->res2); 187a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown#endif 188a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("urg = %x ack = %x psh = %x rst = %x syn = %x fin = %x\n", 189a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown tcp->urg, tcp->ack, tcp->psh, tcp->rst, tcp->syn, tcp->fin); 190a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("window = %x\n",ntohs(tcp->window)); 191a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("check = %x [mine %x]\n",tcp->check,my_checksum); 192a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("urgent = %x\n",tcp->urg_ptr); 193a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 194a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown if(options) { 195a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown size_t i; 196a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 197a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("options: "); 198a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown for(i=0; i<options_size; i++) { 199a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("%x ",*(options+i)); 200a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 201a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown printf("\n"); 202a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 203a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 204a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 205a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print ipv4/tcp header */ 206fcac410fa15613873a07143ccd46470b869346a3Brian Carlstromvoid dump_tcp(const struct tcphdr *tcp, const struct iphdr *ip, 207fcac410fa15613873a07143ccd46470b869346a3Brian Carlstrom const uint8_t *payload, size_t payload_size, 208d44fac888a441cf21111358f43384f3942399d5dLorenzo Colitti const uint8_t *options, size_t options_size) { 209a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown uint32_t temp_checksum; 210a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 21107f0265830fcae2632159e9993b93a161d7ea23bLorenzo Colitti temp_checksum = ipv4_pseudo_header_checksum(ip, sizeof(*tcp) + options_size + payload_size); 212a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown dump_tcp_generic(tcp, options, options_size, temp_checksum, payload, payload_size); 213a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 214a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 215a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* print ipv6/tcp header */ 216fcac410fa15613873a07143ccd46470b869346a3Brian Carlstromvoid dump_tcp6(const struct tcphdr *tcp, const struct ip6_hdr *ip6, 217fcac410fa15613873a07143ccd46470b869346a3Brian Carlstrom const uint8_t *payload, size_t payload_size, 218d44fac888a441cf21111358f43384f3942399d5dLorenzo Colitti const uint8_t *options, size_t options_size) { 219a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown uint32_t temp_checksum; 220a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 22107f0265830fcae2632159e9993b93a161d7ea23bLorenzo Colitti temp_checksum = ipv6_pseudo_header_checksum(ip6, sizeof(*tcp) + options_size + payload_size, IPPROTO_TCP); 222a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown dump_tcp_generic(tcp, options, options_size, temp_checksum, payload, payload_size); 223a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 224a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 225a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown/* generic hex dump */ 226fcac410fa15613873a07143ccd46470b869346a3Brian Carlstromvoid logcat_hexdump(const char *info, const uint8_t *data, size_t len) { 227f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti char output[PACKETLEN*3+2]; 228a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown size_t i; 229a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 23057d480d2b425ef20d8b6f84abd4e9e3209fa9422Lorenzo Colitti output[0] = '\0'; 231a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown for(i = 0; i < len && i < PACKETLEN; i++) { 232fcac410fa15613873a07143ccd46470b869346a3Brian Carlstrom snprintf(output + i*3, 4, " %02x", data[i]); 233a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown } 234f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti output[len*3+3] = '\0'; 235a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown 236f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti logmsg(ANDROID_LOG_WARN,"info %s len %d data%s", info, len, output); 237a45056e35c1af2a0f0a6eed258fd5fdf4846a79fDaniel Drown} 238f68200ab1a5c559866a87e51d0d52e3c74b02343Lorenzo Colitti 239f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colittivoid dump_iovec(const struct iovec *iov, int iov_len) { 240f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti int i; 241f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti char *str; 242f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti for (i = 0; i < iov_len; i++) { 243f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti asprintf(&str, "iov[%d]: ", i); 244f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti logcat_hexdump(str, iov[i].iov_base, iov[i].iov_len); 245f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti free(str); 246f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti } 247f913fe49272286a7f1e58d94a208b6dc06a51fd2Lorenzo Colitti} 248f68200ab1a5c559866a87e51d0d52e3c74b02343Lorenzo Colitti#endif // CLAT_DEBUG 249