| /* |
| * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that: (1) source code distributions |
| * retain the above copyright notice and this paragraph in its entirety, (2) |
| * distributions including binary code include the above copyright notice and |
| * this paragraph in its entirety in the documentation or other materials |
| * provided with the distribution, and (3) all advertising materials mentioning |
| * features or use of this software display the following acknowledgement: |
| * ``This product includes software developed by the University of California, |
| * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| * the University 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| |
| #ifndef lint |
| static const char rcsid[] _U_ = |
| "@(#) $Header: /tcpdump/master/tcpdump/print-icmp6.c,v 1.86 2008-02-05 19:36:13 guy Exp $"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #ifdef INET6 |
| |
| #include <tcpdump-stdinc.h> |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "interface.h" |
| #include "addrtoname.h" |
| #include "extract.h" |
| |
| #include "ip6.h" |
| #include "icmp6.h" |
| #include "ipproto.h" |
| |
| #include "udp.h" |
| #include "ah.h" |
| |
| static const char *get_rtpref(u_int); |
| static const char *get_lifetime(u_int32_t); |
| static void print_lladdr(const u_char *, size_t); |
| static void icmp6_opt_print(const u_char *, int); |
| static void mld6_print(const u_char *); |
| static void mldv2_report_print(const u_char *, u_int); |
| static void mldv2_query_print(const u_char *, u_int); |
| static struct udphdr *get_upperlayer(u_char *, u_int *); |
| static void dnsname_print(const u_char *, const u_char *); |
| static void icmp6_nodeinfo_print(u_int, const u_char *, const u_char *); |
| static void icmp6_rrenum_print(const u_char *, const u_char *); |
| |
| #ifndef abs |
| #define abs(a) ((0 < (a)) ? (a) : -(a)) |
| #endif |
| |
| /* inline the various RPL definitions */ |
| #define ND_RPL_MESSAGE 0x9B |
| |
| static struct tok icmp6_type_values[] = { |
| { ICMP6_DST_UNREACH, "destination unreachable"}, |
| { ICMP6_PACKET_TOO_BIG, "packet too big"}, |
| { ICMP6_TIME_EXCEEDED, "time exceeded in-transit"}, |
| { ICMP6_PARAM_PROB, "parameter problem"}, |
| { ICMP6_ECHO_REQUEST, "echo request"}, |
| { ICMP6_ECHO_REPLY, "echo reply"}, |
| { MLD6_LISTENER_QUERY, "multicast listener query"}, |
| { MLD6_LISTENER_REPORT, "multicast listener report"}, |
| { MLD6_LISTENER_DONE, "multicast listener done"}, |
| { ND_ROUTER_SOLICIT, "router solicitation"}, |
| { ND_ROUTER_ADVERT, "router advertisement"}, |
| { ND_NEIGHBOR_SOLICIT, "neighbor solicitation"}, |
| { ND_NEIGHBOR_ADVERT, "neighbor advertisement"}, |
| { ND_REDIRECT, "redirect"}, |
| { ICMP6_ROUTER_RENUMBERING, "router renumbering"}, |
| { IND_SOLICIT, "inverse neighbor solicitation"}, |
| { IND_ADVERT, "inverse neighbor advertisement"}, |
| { MLDV2_LISTENER_REPORT, "multicast listener report v2"}, |
| { ICMP6_HADISCOV_REQUEST, "ha discovery request"}, |
| { ICMP6_HADISCOV_REPLY, "ha discovery reply"}, |
| { ICMP6_MOBILEPREFIX_SOLICIT, "mobile router solicitation"}, |
| { ICMP6_MOBILEPREFIX_ADVERT, "mobile router advertisement"}, |
| { ICMP6_WRUREQUEST, "who-are-you request"}, |
| { ICMP6_WRUREPLY, "who-are-you reply"}, |
| { ICMP6_NI_QUERY, "node information query"}, |
| { ICMP6_NI_REPLY, "node information reply"}, |
| { MLD6_MTRACE, "mtrace message"}, |
| { MLD6_MTRACE_RESP, "mtrace response"}, |
| { ND_RPL_MESSAGE, "RPL"}, |
| { 0, NULL } |
| }; |
| |
| static struct tok icmp6_dst_unreach_code_values[] = { |
| { ICMP6_DST_UNREACH_NOROUTE, "unreachable route" }, |
| { ICMP6_DST_UNREACH_ADMIN, " unreachable prohibited"}, |
| { ICMP6_DST_UNREACH_BEYONDSCOPE, "beyond scope"}, |
| { ICMP6_DST_UNREACH_ADDR, "unreachable address"}, |
| { ICMP6_DST_UNREACH_NOPORT, "unreachable port"}, |
| { 0, NULL } |
| }; |
| |
| static struct tok icmp6_opt_pi_flag_values[] = { |
| { ND_OPT_PI_FLAG_ONLINK, "onlink" }, |
| { ND_OPT_PI_FLAG_AUTO, "auto" }, |
| { ND_OPT_PI_FLAG_ROUTER, "router" }, |
| { 0, NULL } |
| }; |
| |
| static struct tok icmp6_opt_ra_flag_values[] = { |
| { ND_RA_FLAG_MANAGED, "managed" }, |
| { ND_RA_FLAG_OTHER, "other stateful"}, |
| { ND_RA_FLAG_HOME_AGENT, "home agent"}, |
| { 0, NULL } |
| }; |
| |
| static struct tok icmp6_nd_na_flag_values[] = { |
| { ND_NA_FLAG_ROUTER, "router" }, |
| { ND_NA_FLAG_SOLICITED, "solicited" }, |
| { ND_NA_FLAG_OVERRIDE, "override" }, |
| { 0, NULL } |
| }; |
| |
| |
| static struct tok icmp6_opt_values[] = { |
| { ND_OPT_SOURCE_LINKADDR, "source link-address"}, |
| { ND_OPT_TARGET_LINKADDR, "destination link-address"}, |
| { ND_OPT_PREFIX_INFORMATION, "prefix info"}, |
| { ND_OPT_REDIRECTED_HEADER, "redirected header"}, |
| { ND_OPT_MTU, "mtu"}, |
| { ND_OPT_RDNSS, "rdnss"}, |
| { ND_OPT_ADVINTERVAL, "advertisement interval"}, |
| { ND_OPT_HOMEAGENT_INFO, "homeagent information"}, |
| { ND_OPT_ROUTE_INFO, "route info"}, |
| { 0, NULL } |
| }; |
| |
| /* mldv2 report types */ |
| static struct tok mldv2report2str[] = { |
| { 1, "is_in" }, |
| { 2, "is_ex" }, |
| { 3, "to_in" }, |
| { 4, "to_ex" }, |
| { 5, "allow" }, |
| { 6, "block" }, |
| { 0, NULL } |
| }; |
| |
| static const char * |
| get_rtpref(u_int v) |
| { |
| static const char *rtpref_str[] = { |
| "medium", /* 00 */ |
| "high", /* 01 */ |
| "rsv", /* 10 */ |
| "low" /* 11 */ |
| }; |
| |
| return rtpref_str[((v & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff]; |
| } |
| |
| static const char * |
| get_lifetime(u_int32_t v) |
| { |
| static char buf[20]; |
| |
| if (v == (u_int32_t)~0UL) |
| return "infinity"; |
| else { |
| snprintf(buf, sizeof(buf), "%u", v); |
| return buf; |
| } |
| } |
| |
| static void |
| print_lladdr(const u_int8_t *p, size_t l) |
| { |
| const u_int8_t *ep, *q; |
| |
| q = p; |
| ep = p + l; |
| while (l > 0 && q < ep) { |
| if (q > p) |
| printf(":"); |
| printf("%02x", *q++); |
| l--; |
| } |
| } |
| |
| static int icmp6_cksum(const struct ip6_hdr *ip6, const struct icmp6_hdr *icp, |
| u_int len) |
| { |
| return (nextproto6_cksum(ip6, (const u_int8_t *)(void *)icp, len, |
| IPPROTO_ICMPV6)); |
| } |
| |
| enum ND_RPL_CODE { |
| ND_RPL_DIS =0x00, |
| ND_RPL_DIO =0x01, |
| ND_RPL_DAO =0x02, |
| ND_RPL_DAO_ACK=0x03, |
| ND_RPL_SDIS =0x80, |
| ND_RPL_SDIO =0x81, |
| ND_RPL_SDAO =0x82, |
| ND_RPL_SDAO_ACK=0x83, |
| ND_RPL_SCC =0x8A, |
| }; |
| |
| enum ND_RPL_DIO_FLAGS { |
| ND_RPL_DIO_GROUNDED = 0x80, |
| ND_RPL_DIO_DATRIG = 0x40, |
| ND_RPL_DIO_DASUPPORT= 0x20, |
| ND_RPL_DIO_RES4 = 0x10, |
| ND_RPL_DIO_RES3 = 0x08, |
| ND_RPL_DIO_PRF_MASK = 0x07, /* 3-bit preference */ |
| }; |
| |
| struct nd_rpl_dio { |
| u_int8_t rpl_flags; |
| u_int8_t rpl_seq; |
| u_int8_t rpl_instanceid; |
| u_int8_t rpl_dagrank; |
| u_int8_t rpl_dagid[16]; |
| }; |
| |
| static void |
| rpl_print(netdissect_options *ndo, |
| const struct icmp6_hdr *hdr, |
| const u_char *bp, u_int length _U_) |
| { |
| struct nd_rpl_dio *dio = (struct nd_rpl_dio *)bp; |
| int secured = hdr->icmp6_code & 0x80; |
| int basecode= hdr->icmp6_code & 0x7f; |
| |
| ND_TCHECK(dio->rpl_dagid); |
| |
| if(secured) { |
| ND_PRINT((ndo, ", (SEC)")); |
| } else { |
| ND_PRINT((ndo, ", (CLR)")); |
| } |
| |
| switch(basecode) { |
| case ND_RPL_DIS: |
| ND_PRINT((ndo, "DODAG Information Solicitation")); |
| if(ndo->ndo_vflag) { |
| } |
| break; |
| case ND_RPL_DIO: |
| ND_PRINT((ndo, "DODAG Information Object")); |
| if(ndo->ndo_vflag) { |
| char dagid[65]; |
| char *d = dagid; |
| int i; |
| for(i=0;i<16;i++) { |
| if(isprint(dio->rpl_dagid[i])) { |
| *d++ = dio->rpl_dagid[i]; |
| } else { |
| int cnt=snprintf(d,4,"0x%02x", |
| dio->rpl_dagid[i]); |
| d += cnt; |
| } |
| } |
| *d++ = '\0'; |
| ND_PRINT((ndo, " [seq:%u,instance:%u,rank:%u,dagid:%s]", |
| dio->rpl_seq, |
| dio->rpl_instanceid, |
| dio->rpl_dagrank, |
| dagid)); |
| } |
| break; |
| case ND_RPL_DAO: |
| ND_PRINT((ndo, "Destination Advertisement Object")); |
| if(ndo->ndo_vflag) { |
| } |
| break; |
| case ND_RPL_DAO_ACK: |
| ND_PRINT((ndo, "Destination Advertisement Object Ack")); |
| if(ndo->ndo_vflag) { |
| } |
| break; |
| default: |
| ND_PRINT((ndo, "RPL message, unknown code %u",hdr->icmp6_code)); |
| break; |
| } |
| return; |
| trunc: |
| ND_PRINT((ndo," [|truncated]")); |
| return; |
| |
| } |
| |
| |
| void |
| icmp6_print(netdissect_options *ndo, |
| const u_char *bp, u_int length, const u_char *bp2, int fragmented) |
| { |
| const struct icmp6_hdr *dp; |
| const struct ip6_hdr *ip; |
| const struct ip6_hdr *oip; |
| const struct udphdr *ouh; |
| int dport; |
| const u_char *ep; |
| u_int prot; |
| |
| dp = (struct icmp6_hdr *)bp; |
| ip = (struct ip6_hdr *)bp2; |
| oip = (struct ip6_hdr *)(dp + 1); |
| /* 'ep' points to the end of available data. */ |
| ep = snapend; |
| |
| TCHECK(dp->icmp6_cksum); |
| |
| if (vflag && !fragmented) { |
| u_int16_t sum, udp_sum; |
| |
| if (TTEST2(bp[0], length)) { |
| udp_sum = EXTRACT_16BITS(&dp->icmp6_cksum); |
| sum = icmp6_cksum(ip, dp, length); |
| if (sum != 0) |
| (void)printf("[bad icmp6 cksum 0x%04x -> 0x%04x!] ", |
| udp_sum, |
| in_cksum_shouldbe(udp_sum, sum)); |
| else |
| (void)printf("[icmp6 sum ok] "); |
| } |
| } |
| |
| printf("ICMP6, %s", tok2str(icmp6_type_values,"unknown icmp6 type (%u)",dp->icmp6_type)); |
| |
| /* display cosmetics: print the packet length for printer that use the vflag now */ |
| if (vflag && (dp->icmp6_type == ND_ROUTER_SOLICIT || |
| dp->icmp6_type == ND_ROUTER_ADVERT || |
| dp->icmp6_type == ND_NEIGHBOR_ADVERT || |
| dp->icmp6_type == ND_NEIGHBOR_SOLICIT || |
| dp->icmp6_type == ND_REDIRECT || |
| dp->icmp6_type == ICMP6_HADISCOV_REPLY || |
| dp->icmp6_type == ICMP6_MOBILEPREFIX_ADVERT )) |
| printf(", length %u", length); |
| |
| switch (dp->icmp6_type) { |
| case ICMP6_DST_UNREACH: |
| TCHECK(oip->ip6_dst); |
| printf(", %s", tok2str(icmp6_dst_unreach_code_values,"unknown unreach code (%u)",dp->icmp6_code)); |
| switch (dp->icmp6_code) { |
| |
| case ICMP6_DST_UNREACH_NOROUTE: /* fall through */ |
| case ICMP6_DST_UNREACH_ADMIN: |
| case ICMP6_DST_UNREACH_ADDR: |
| printf(" %s",ip6addr_string(&oip->ip6_dst)); |
| break; |
| case ICMP6_DST_UNREACH_BEYONDSCOPE: |
| printf(" %s, source address %s", |
| ip6addr_string(&oip->ip6_dst), |
| ip6addr_string(&oip->ip6_src)); |
| break; |
| case ICMP6_DST_UNREACH_NOPORT: |
| if ((ouh = get_upperlayer((u_char *)oip, &prot)) |
| == NULL) |
| goto trunc; |
| |
| dport = EXTRACT_16BITS(&ouh->uh_dport); |
| switch (prot) { |
| case IPPROTO_TCP: |
| printf(", %s tcp port %s", |
| ip6addr_string(&oip->ip6_dst), |
| tcpport_string(dport)); |
| break; |
| case IPPROTO_UDP: |
| printf(", %s udp port %s", |
| ip6addr_string(&oip->ip6_dst), |
| udpport_string(dport)); |
| break; |
| default: |
| printf(", %s protocol %d port %d unreachable", |
| ip6addr_string(&oip->ip6_dst), |
| oip->ip6_nxt, dport); |
| break; |
| } |
| break; |
| default: |
| if (vflag <= 1) { |
| print_unknown_data(bp,"\n\t",length); |
| return; |
| } |
| break; |
| } |
| break; |
| case ICMP6_PACKET_TOO_BIG: |
| TCHECK(dp->icmp6_mtu); |
| printf(", mtu %u", EXTRACT_32BITS(&dp->icmp6_mtu)); |
| break; |
| case ICMP6_TIME_EXCEEDED: |
| TCHECK(oip->ip6_dst); |
| switch (dp->icmp6_code) { |
| case ICMP6_TIME_EXCEED_TRANSIT: |
| printf(" for %s", |
| ip6addr_string(&oip->ip6_dst)); |
| break; |
| case ICMP6_TIME_EXCEED_REASSEMBLY: |
| printf(" (reassembly)"); |
| break; |
| default: |
| printf(", unknown code (%u)", dp->icmp6_code); |
| break; |
| } |
| break; |
| case ICMP6_PARAM_PROB: |
| TCHECK(oip->ip6_dst); |
| switch (dp->icmp6_code) { |
| case ICMP6_PARAMPROB_HEADER: |
| printf(", errorneous - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr)); |
| break; |
| case ICMP6_PARAMPROB_NEXTHEADER: |
| printf(", next header - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr)); |
| break; |
| case ICMP6_PARAMPROB_OPTION: |
| printf(", option - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr)); |
| break; |
| default: |
| printf(", code-#%d", |
| dp->icmp6_code); |
| break; |
| } |
| break; |
| case ICMP6_ECHO_REQUEST: |
| case ICMP6_ECHO_REPLY: |
| TCHECK(dp->icmp6_seq); |
| printf(", seq %u", EXTRACT_16BITS(&dp->icmp6_seq)); |
| break; |
| case ICMP6_MEMBERSHIP_QUERY: |
| if (length == MLD_MINLEN) { |
| mld6_print((const u_char *)dp); |
| } else if (length >= MLDV2_MINLEN) { |
| printf("v2 "); |
| mldv2_query_print((const u_char *)dp, length); |
| } else { |
| printf(" unknown-version (len %u) ", length); |
| } |
| break; |
| case ICMP6_MEMBERSHIP_REPORT: |
| mld6_print((const u_char *)dp); |
| break; |
| case ICMP6_MEMBERSHIP_REDUCTION: |
| mld6_print((const u_char *)dp); |
| break; |
| case ND_ROUTER_SOLICIT: |
| #define RTSOLLEN 8 |
| if (vflag) { |
| icmp6_opt_print((const u_char *)dp + RTSOLLEN, |
| length - RTSOLLEN); |
| } |
| break; |
| case ND_ROUTER_ADVERT: |
| #define RTADVLEN 16 |
| if (vflag) { |
| struct nd_router_advert *p; |
| |
| p = (struct nd_router_advert *)dp; |
| TCHECK(p->nd_ra_retransmit); |
| printf("\n\thop limit %u, Flags [%s]" \ |
| ", pref %s, router lifetime %us, reachable time %us, retrans time %us", |
| (u_int)p->nd_ra_curhoplimit, |
| bittok2str(icmp6_opt_ra_flag_values,"none",(p->nd_ra_flags_reserved)), |
| get_rtpref(p->nd_ra_flags_reserved), |
| EXTRACT_16BITS(&p->nd_ra_router_lifetime), |
| EXTRACT_32BITS(&p->nd_ra_reachable), |
| EXTRACT_32BITS(&p->nd_ra_retransmit)); |
| |
| icmp6_opt_print((const u_char *)dp + RTADVLEN, |
| length - RTADVLEN); |
| } |
| break; |
| case ND_NEIGHBOR_SOLICIT: |
| { |
| struct nd_neighbor_solicit *p; |
| p = (struct nd_neighbor_solicit *)dp; |
| TCHECK(p->nd_ns_target); |
| printf(", who has %s", ip6addr_string(&p->nd_ns_target)); |
| if (vflag) { |
| #define NDSOLLEN 24 |
| icmp6_opt_print((const u_char *)dp + NDSOLLEN, |
| length - NDSOLLEN); |
| } |
| } |
| break; |
| case ND_NEIGHBOR_ADVERT: |
| { |
| struct nd_neighbor_advert *p; |
| |
| p = (struct nd_neighbor_advert *)dp; |
| TCHECK(p->nd_na_target); |
| printf(", tgt is %s", |
| ip6addr_string(&p->nd_na_target)); |
| if (vflag) { |
| printf(", Flags [%s]", |
| bittok2str(icmp6_nd_na_flag_values, |
| "none", |
| EXTRACT_32BITS(&p->nd_na_flags_reserved))); |
| #define NDADVLEN 24 |
| icmp6_opt_print((const u_char *)dp + NDADVLEN, |
| length - NDADVLEN); |
| #undef NDADVLEN |
| } |
| } |
| break; |
| case ND_REDIRECT: |
| #define RDR(i) ((struct nd_redirect *)(i)) |
| TCHECK(RDR(dp)->nd_rd_dst); |
| printf(", %s", getname6((const u_char *)&RDR(dp)->nd_rd_dst)); |
| TCHECK(RDR(dp)->nd_rd_target); |
| printf(" to %s", |
| getname6((const u_char*)&RDR(dp)->nd_rd_target)); |
| #define REDIRECTLEN 40 |
| if (vflag) { |
| icmp6_opt_print((const u_char *)dp + REDIRECTLEN, |
| length - REDIRECTLEN); |
| } |
| break; |
| #undef REDIRECTLEN |
| #undef RDR |
| case ICMP6_ROUTER_RENUMBERING: |
| icmp6_rrenum_print(bp, ep); |
| break; |
| case ICMP6_NI_QUERY: |
| case ICMP6_NI_REPLY: |
| icmp6_nodeinfo_print(length, bp, ep); |
| break; |
| case IND_SOLICIT: |
| case IND_ADVERT: |
| break; |
| case ICMP6_V2_MEMBERSHIP_REPORT: |
| mldv2_report_print((const u_char *) dp, length); |
| break; |
| case ICMP6_MOBILEPREFIX_SOLICIT: /* fall through */ |
| case ICMP6_HADISCOV_REQUEST: |
| TCHECK(dp->icmp6_data16[0]); |
| printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0])); |
| break; |
| case ICMP6_HADISCOV_REPLY: |
| if (vflag) { |
| struct in6_addr *in6; |
| u_char *cp; |
| |
| TCHECK(dp->icmp6_data16[0]); |
| printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0])); |
| cp = (u_char *)dp + length; |
| in6 = (struct in6_addr *)(dp + 1); |
| for (; (u_char *)in6 < cp; in6++) { |
| TCHECK(*in6); |
| printf(", %s", ip6addr_string(in6)); |
| } |
| } |
| break; |
| case ICMP6_MOBILEPREFIX_ADVERT: |
| if (vflag) { |
| TCHECK(dp->icmp6_data16[0]); |
| printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0])); |
| if (dp->icmp6_data16[1] & 0xc0) |
| printf(" "); |
| if (dp->icmp6_data16[1] & 0x80) |
| printf("M"); |
| if (dp->icmp6_data16[1] & 0x40) |
| printf("O"); |
| #define MPADVLEN 8 |
| icmp6_opt_print((const u_char *)dp + MPADVLEN, |
| length - MPADVLEN); |
| } |
| break; |
| case ND_RPL_MESSAGE: |
| rpl_print(ndo, dp, &dp->icmp6_data8[0], length); |
| break; |
| default: |
| printf(", length %u", length); |
| if (vflag <= 1) |
| print_unknown_data(bp,"\n\t", length); |
| return; |
| } |
| if (!vflag) |
| printf(", length %u", length); |
| return; |
| trunc: |
| fputs("[|icmp6]", stdout); |
| } |
| |
| static struct udphdr * |
| get_upperlayer(u_char *bp, u_int *prot) |
| { |
| const u_char *ep; |
| struct ip6_hdr *ip6 = (struct ip6_hdr *)bp; |
| struct udphdr *uh; |
| struct ip6_hbh *hbh; |
| struct ip6_frag *fragh; |
| struct ah *ah; |
| u_int nh; |
| int hlen; |
| |
| /* 'ep' points to the end of available data. */ |
| ep = snapend; |
| |
| if (!TTEST(ip6->ip6_nxt)) |
| return NULL; |
| |
| nh = ip6->ip6_nxt; |
| hlen = sizeof(struct ip6_hdr); |
| |
| while (bp < ep) { |
| bp += hlen; |
| |
| switch(nh) { |
| case IPPROTO_UDP: |
| case IPPROTO_TCP: |
| uh = (struct udphdr *)bp; |
| if (TTEST(uh->uh_dport)) { |
| *prot = nh; |
| return(uh); |
| } |
| else |
| return(NULL); |
| /* NOTREACHED */ |
| |
| case IPPROTO_HOPOPTS: |
| case IPPROTO_DSTOPTS: |
| case IPPROTO_ROUTING: |
| hbh = (struct ip6_hbh *)bp; |
| if (!TTEST(hbh->ip6h_len)) |
| return(NULL); |
| nh = hbh->ip6h_nxt; |
| hlen = (hbh->ip6h_len + 1) << 3; |
| break; |
| |
| case IPPROTO_FRAGMENT: /* this should be odd, but try anyway */ |
| fragh = (struct ip6_frag *)bp; |
| if (!TTEST(fragh->ip6f_offlg)) |
| return(NULL); |
| /* fragments with non-zero offset are meaningless */ |
| if ((EXTRACT_16BITS(&fragh->ip6f_offlg) & IP6F_OFF_MASK) != 0) |
| return(NULL); |
| nh = fragh->ip6f_nxt; |
| hlen = sizeof(struct ip6_frag); |
| break; |
| |
| case IPPROTO_AH: |
| ah = (struct ah *)bp; |
| if (!TTEST(ah->ah_len)) |
| return(NULL); |
| nh = ah->ah_nxt; |
| hlen = (ah->ah_len + 2) << 2; |
| break; |
| |
| default: /* unknown or undecodable header */ |
| *prot = nh; /* meaningless, but set here anyway */ |
| return(NULL); |
| } |
| } |
| |
| return(NULL); /* should be notreached, though */ |
| } |
| |
| static void |
| icmp6_opt_print(const u_char *bp, int resid) |
| { |
| const struct nd_opt_hdr *op; |
| const struct nd_opt_hdr *opl; /* why there's no struct? */ |
| const struct nd_opt_prefix_info *opp; |
| const struct icmp6_opts_redirect *opr; |
| const struct nd_opt_mtu *opm; |
| const struct nd_opt_rdnss *oprd; |
| const struct nd_opt_advinterval *opa; |
| const struct nd_opt_homeagent_info *oph; |
| const struct nd_opt_route_info *opri; |
| const u_char *cp, *ep; |
| struct in6_addr in6, *in6p; |
| size_t l; |
| u_int i; |
| |
| #define ECHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) return |
| |
| cp = bp; |
| /* 'ep' points to the end of available data. */ |
| ep = snapend; |
| |
| while (cp < ep) { |
| op = (struct nd_opt_hdr *)cp; |
| |
| ECHECK(op->nd_opt_len); |
| if (resid <= 0) |
| return; |
| if (op->nd_opt_len == 0) |
| goto trunc; |
| if (cp + (op->nd_opt_len << 3) > ep) |
| goto trunc; |
| |
| printf("\n\t %s option (%u), length %u (%u): ", |
| tok2str(icmp6_opt_values, "unknown", op->nd_opt_type), |
| op->nd_opt_type, |
| op->nd_opt_len << 3, |
| op->nd_opt_len); |
| |
| switch (op->nd_opt_type) { |
| case ND_OPT_SOURCE_LINKADDR: |
| opl = (struct nd_opt_hdr *)op; |
| l = (op->nd_opt_len << 3) - 2; |
| print_lladdr(cp + 2, l); |
| break; |
| case ND_OPT_TARGET_LINKADDR: |
| opl = (struct nd_opt_hdr *)op; |
| l = (op->nd_opt_len << 3) - 2; |
| print_lladdr(cp + 2, l); |
| break; |
| case ND_OPT_PREFIX_INFORMATION: |
| opp = (struct nd_opt_prefix_info *)op; |
| TCHECK(opp->nd_opt_pi_prefix); |
| printf("%s/%u%s, Flags [%s], valid time %ss", |
| ip6addr_string(&opp->nd_opt_pi_prefix), |
| opp->nd_opt_pi_prefix_len, |
| (op->nd_opt_len != 4) ? "badlen" : "", |
| bittok2str(icmp6_opt_pi_flag_values, "none", opp->nd_opt_pi_flags_reserved), |
| get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_valid_time))); |
| printf(", pref. time %ss", get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_preferred_time))); |
| break; |
| case ND_OPT_REDIRECTED_HEADER: |
| opr = (struct icmp6_opts_redirect *)op; |
| print_unknown_data(bp,"\n\t ",op->nd_opt_len<<3); |
| /* xxx */ |
| break; |
| case ND_OPT_MTU: |
| opm = (struct nd_opt_mtu *)op; |
| TCHECK(opm->nd_opt_mtu_mtu); |
| printf(" %u%s", |
| EXTRACT_32BITS(&opm->nd_opt_mtu_mtu), |
| (op->nd_opt_len != 1) ? "bad option length" : "" ); |
| break; |
| case ND_OPT_RDNSS: |
| oprd = (struct nd_opt_rdnss *)op; |
| l = (op->nd_opt_len - 1) / 2; |
| printf(" lifetime %us,", |
| EXTRACT_32BITS(&oprd->nd_opt_rdnss_lifetime)); |
| for (i = 0; i < l; i++) { |
| TCHECK(oprd->nd_opt_rdnss_addr[i]); |
| printf(" addr: %s", |
| ip6addr_string(&oprd->nd_opt_rdnss_addr[i])); |
| } |
| break; |
| case ND_OPT_ADVINTERVAL: |
| opa = (struct nd_opt_advinterval *)op; |
| TCHECK(opa->nd_opt_adv_interval); |
| printf(" %ums", EXTRACT_32BITS(&opa->nd_opt_adv_interval)); |
| break; |
| case ND_OPT_HOMEAGENT_INFO: |
| oph = (struct nd_opt_homeagent_info *)op; |
| TCHECK(oph->nd_opt_hai_lifetime); |
| printf(" preference %u, lifetime %u", |
| EXTRACT_16BITS(&oph->nd_opt_hai_preference), |
| EXTRACT_16BITS(&oph->nd_opt_hai_lifetime)); |
| break; |
| case ND_OPT_ROUTE_INFO: |
| opri = (struct nd_opt_route_info *)op; |
| TCHECK(opri->nd_opt_rti_lifetime); |
| memset(&in6, 0, sizeof(in6)); |
| in6p = (struct in6_addr *)(opri + 1); |
| switch (op->nd_opt_len) { |
| case 1: |
| break; |
| case 2: |
| TCHECK2(*in6p, 8); |
| memcpy(&in6, opri + 1, 8); |
| break; |
| case 3: |
| TCHECK(*in6p); |
| memcpy(&in6, opri + 1, sizeof(in6)); |
| break; |
| default: |
| goto trunc; |
| } |
| printf(" %s/%u", ip6addr_string(&in6), |
| opri->nd_opt_rti_prefixlen); |
| printf(", pref=%s", get_rtpref(opri->nd_opt_rti_flags)); |
| printf(", lifetime=%s", |
| get_lifetime(EXTRACT_32BITS(&opri->nd_opt_rti_lifetime))); |
| break; |
| default: |
| if (vflag <= 1) { |
| print_unknown_data(cp+2,"\n\t ", (op->nd_opt_len << 3) - 2); /* skip option header */ |
| return; |
| } |
| break; |
| } |
| /* do we want to see an additional hexdump ? */ |
| if (vflag> 1) |
| print_unknown_data(cp+2,"\n\t ", (op->nd_opt_len << 3) - 2); /* skip option header */ |
| |
| cp += op->nd_opt_len << 3; |
| resid -= op->nd_opt_len << 3; |
| } |
| return; |
| |
| trunc: |
| fputs("[ndp opt]", stdout); |
| return; |
| #undef ECHECK |
| } |
| |
| static void |
| mld6_print(const u_char *bp) |
| { |
| struct mld6_hdr *mp = (struct mld6_hdr *)bp; |
| const u_char *ep; |
| |
| /* 'ep' points to the end of available data. */ |
| ep = snapend; |
| |
| if ((u_char *)mp + sizeof(*mp) > ep) |
| return; |
| |
| printf("max resp delay: %d ", EXTRACT_16BITS(&mp->mld6_maxdelay)); |
| printf("addr: %s", ip6addr_string(&mp->mld6_addr)); |
| } |
| |
| static void |
| mldv2_report_print(const u_char *bp, u_int len) |
| { |
| struct icmp6_hdr *icp = (struct icmp6_hdr *) bp; |
| u_int group, nsrcs, ngroups; |
| u_int i, j; |
| |
| /* Minimum len is 8 */ |
| if (len < 8) { |
| printf(" [invalid len %d]", len); |
| return; |
| } |
| |
| TCHECK(icp->icmp6_data16[1]); |
| ngroups = EXTRACT_16BITS(&icp->icmp6_data16[1]); |
| printf(", %d group record(s)", ngroups); |
| if (vflag > 0) { |
| /* Print the group records */ |
| group = 8; |
| for (i = 0; i < ngroups; i++) { |
| /* type(1) + auxlen(1) + numsrc(2) + grp(16) */ |
| if (len < group + 20) { |
| printf(" [invalid number of groups]"); |
| return; |
| } |
| TCHECK2(bp[group + 4], sizeof(struct in6_addr)); |
| printf(" [gaddr %s", ip6addr_string(&bp[group + 4])); |
| printf(" %s", tok2str(mldv2report2str, " [v2-report-#%d]", |
| bp[group])); |
| nsrcs = (bp[group + 2] << 8) + bp[group + 3]; |
| /* Check the number of sources and print them */ |
| if (len < group + 20 + (nsrcs * sizeof(struct in6_addr))) { |
| printf(" [invalid number of sources %d]", nsrcs); |
| return; |
| } |
| if (vflag == 1) |
| printf(", %d source(s)", nsrcs); |
| else { |
| /* Print the sources */ |
| (void)printf(" {"); |
| for (j = 0; j < nsrcs; j++) { |
| TCHECK2(bp[group + 20 + j * sizeof(struct in6_addr)], |
| sizeof(struct in6_addr)); |
| printf(" %s", ip6addr_string(&bp[group + 20 + j * sizeof(struct in6_addr)])); |
| } |
| (void)printf(" }"); |
| } |
| /* Next group record */ |
| group += 20 + nsrcs * sizeof(struct in6_addr); |
| printf("]"); |
| } |
| } |
| return; |
| trunc: |
| (void)printf("[|icmp6]"); |
| return; |
| } |
| |
| static void |
| mldv2_query_print(const u_char *bp, u_int len) |
| { |
| struct icmp6_hdr *icp = (struct icmp6_hdr *) bp; |
| u_int mrc; |
| int mrt, qqi; |
| u_int nsrcs; |
| register u_int i; |
| |
| /* Minimum len is 28 */ |
| if (len < 28) { |
| printf(" [invalid len %d]", len); |
| return; |
| } |
| TCHECK(icp->icmp6_data16[0]); |
| mrc = EXTRACT_16BITS(&icp->icmp6_data16[0]); |
| if (mrc < 32768) { |
| mrt = mrc; |
| } else { |
| mrt = ((mrc & 0x0fff) | 0x1000) << (((mrc & 0x7000) >> 12) + 3); |
| } |
| if (vflag) { |
| (void)printf(" [max resp delay=%d]", mrt); |
| } |
| TCHECK2(bp[8], sizeof(struct in6_addr)); |
| printf(" [gaddr %s", ip6addr_string(&bp[8])); |
| |
| if (vflag) { |
| TCHECK(bp[25]); |
| if (bp[24] & 0x08) { |
| printf(" sflag"); |
| } |
| if (bp[24] & 0x07) { |
| printf(" robustness=%d", bp[24] & 0x07); |
| } |
| if (bp[25] < 128) { |
| qqi = bp[25]; |
| } else { |
| qqi = ((bp[25] & 0x0f) | 0x10) << (((bp[25] & 0x70) >> 4) + 3); |
| } |
| printf(" qqi=%d", qqi); |
| } |
| |
| TCHECK2(bp[26], 2); |
| nsrcs = EXTRACT_16BITS(&bp[26]); |
| if (nsrcs > 0) { |
| if (len < 28 + nsrcs * sizeof(struct in6_addr)) |
| printf(" [invalid number of sources]"); |
| else if (vflag > 1) { |
| printf(" {"); |
| for (i = 0; i < nsrcs; i++) { |
| TCHECK2(bp[28 + i * sizeof(struct in6_addr)], |
| sizeof(struct in6_addr)); |
| printf(" %s", ip6addr_string(&bp[28 + i * sizeof(struct in6_addr)])); |
| } |
| printf(" }"); |
| } else |
| printf(", %d source(s)", nsrcs); |
| } |
| printf("]"); |
| return; |
| trunc: |
| (void)printf("[|icmp6]"); |
| return; |
| } |
| |
| static void |
| dnsname_print(const u_char *cp, const u_char *ep) |
| { |
| int i; |
| |
| /* DNS name decoding - no decompression */ |
| printf(", \""); |
| while (cp < ep) { |
| i = *cp++; |
| if (i) { |
| if (i > ep - cp) { |
| printf("???"); |
| break; |
| } |
| while (i-- && cp < ep) { |
| safeputchar(*cp); |
| cp++; |
| } |
| if (cp + 1 < ep && *cp) |
| printf("."); |
| } else { |
| if (cp == ep) { |
| /* FQDN */ |
| printf("."); |
| } else if (cp + 1 == ep && *cp == '\0') { |
| /* truncated */ |
| } else { |
| /* invalid */ |
| printf("???"); |
| } |
| break; |
| } |
| } |
| printf("\""); |
| } |
| |
| static void |
| icmp6_nodeinfo_print(u_int icmp6len, const u_char *bp, const u_char *ep) |
| { |
| struct icmp6_nodeinfo *ni6; |
| struct icmp6_hdr *dp; |
| const u_char *cp; |
| size_t siz, i; |
| int needcomma; |
| |
| if (ep < bp) |
| return; |
| dp = (struct icmp6_hdr *)bp; |
| ni6 = (struct icmp6_nodeinfo *)bp; |
| siz = ep - bp; |
| |
| switch (ni6->ni_type) { |
| case ICMP6_NI_QUERY: |
| if (siz == sizeof(*dp) + 4) { |
| /* KAME who-are-you */ |
| printf(" who-are-you request"); |
| break; |
| } |
| printf(" node information query"); |
| |
| TCHECK2(*dp, sizeof(*ni6)); |
| ni6 = (struct icmp6_nodeinfo *)dp; |
| printf(" ("); /*)*/ |
| switch (EXTRACT_16BITS(&ni6->ni_qtype)) { |
| case NI_QTYPE_NOOP: |
| printf("noop"); |
| break; |
| case NI_QTYPE_SUPTYPES: |
| printf("supported qtypes"); |
| i = EXTRACT_16BITS(&ni6->ni_flags); |
| if (i) |
| printf(" [%s]", (i & 0x01) ? "C" : ""); |
| break; |
| break; |
| case NI_QTYPE_FQDN: |
| printf("DNS name"); |
| break; |
| case NI_QTYPE_NODEADDR: |
| printf("node addresses"); |
| i = ni6->ni_flags; |
| if (!i) |
| break; |
| /* NI_NODEADDR_FLAG_TRUNCATE undefined for query */ |
| printf(" [%s%s%s%s%s%s]", |
| (i & NI_NODEADDR_FLAG_ANYCAST) ? "a" : "", |
| (i & NI_NODEADDR_FLAG_GLOBAL) ? "G" : "", |
| (i & NI_NODEADDR_FLAG_SITELOCAL) ? "S" : "", |
| (i & NI_NODEADDR_FLAG_LINKLOCAL) ? "L" : "", |
| (i & NI_NODEADDR_FLAG_COMPAT) ? "C" : "", |
| (i & NI_NODEADDR_FLAG_ALL) ? "A" : ""); |
| break; |
| default: |
| printf("unknown"); |
| break; |
| } |
| |
| if (ni6->ni_qtype == NI_QTYPE_NOOP || |
| ni6->ni_qtype == NI_QTYPE_SUPTYPES) { |
| if (siz != sizeof(*ni6)) |
| if (vflag) |
| printf(", invalid len"); |
| /*(*/ |
| printf(")"); |
| break; |
| } |
| |
| |
| /* XXX backward compat, icmp-name-lookup-03 */ |
| if (siz == sizeof(*ni6)) { |
| printf(", 03 draft"); |
| /*(*/ |
| printf(")"); |
| break; |
| } |
| |
| switch (ni6->ni_code) { |
| case ICMP6_NI_SUBJ_IPV6: |
| if (!TTEST2(*dp, |
| sizeof(*ni6) + sizeof(struct in6_addr))) |
| break; |
| if (siz != sizeof(*ni6) + sizeof(struct in6_addr)) { |
| if (vflag) |
| printf(", invalid subject len"); |
| break; |
| } |
| printf(", subject=%s", |
| getname6((const u_char *)(ni6 + 1))); |
| break; |
| case ICMP6_NI_SUBJ_FQDN: |
| printf(", subject=DNS name"); |
| cp = (const u_char *)(ni6 + 1); |
| if (cp[0] == ep - cp - 1) { |
| /* icmp-name-lookup-03, pascal string */ |
| if (vflag) |
| printf(", 03 draft"); |
| cp++; |
| printf(", \""); |
| while (cp < ep) { |
| safeputchar(*cp); |
| cp++; |
| } |
| printf("\""); |
| } else |
| dnsname_print(cp, ep); |
| break; |
| case ICMP6_NI_SUBJ_IPV4: |
| if (!TTEST2(*dp, sizeof(*ni6) + sizeof(struct in_addr))) |
| break; |
| if (siz != sizeof(*ni6) + sizeof(struct in_addr)) { |
| if (vflag) |
| printf(", invalid subject len"); |
| break; |
| } |
| printf(", subject=%s", |
| getname((const u_char *)(ni6 + 1))); |
| break; |
| default: |
| printf(", unknown subject"); |
| break; |
| } |
| |
| /*(*/ |
| printf(")"); |
| break; |
| |
| case ICMP6_NI_REPLY: |
| if (icmp6len > siz) { |
| printf("[|icmp6: node information reply]"); |
| break; |
| } |
| |
| needcomma = 0; |
| |
| ni6 = (struct icmp6_nodeinfo *)dp; |
| printf(" node information reply"); |
| printf(" ("); /*)*/ |
| switch (ni6->ni_code) { |
| case ICMP6_NI_SUCCESS: |
| if (vflag) { |
| printf("success"); |
| needcomma++; |
| } |
| break; |
| case ICMP6_NI_REFUSED: |
| printf("refused"); |
| needcomma++; |
| if (siz != sizeof(*ni6)) |
| if (vflag) |
| printf(", invalid length"); |
| break; |
| case ICMP6_NI_UNKNOWN: |
| printf("unknown"); |
| needcomma++; |
| if (siz != sizeof(*ni6)) |
| if (vflag) |
| printf(", invalid length"); |
| break; |
| } |
| |
| if (ni6->ni_code != ICMP6_NI_SUCCESS) { |
| /*(*/ |
| printf(")"); |
| break; |
| } |
| |
| switch (EXTRACT_16BITS(&ni6->ni_qtype)) { |
| case NI_QTYPE_NOOP: |
| if (needcomma) |
| printf(", "); |
| printf("noop"); |
| if (siz != sizeof(*ni6)) |
| if (vflag) |
| printf(", invalid length"); |
| break; |
| case NI_QTYPE_SUPTYPES: |
| if (needcomma) |
| printf(", "); |
| printf("supported qtypes"); |
| i = EXTRACT_16BITS(&ni6->ni_flags); |
| if (i) |
| printf(" [%s]", (i & 0x01) ? "C" : ""); |
| break; |
| case NI_QTYPE_FQDN: |
| if (needcomma) |
| printf(", "); |
| printf("DNS name"); |
| cp = (const u_char *)(ni6 + 1) + 4; |
| if (cp[0] == ep - cp - 1) { |
| /* icmp-name-lookup-03, pascal string */ |
| if (vflag) |
| printf(", 03 draft"); |
| cp++; |
| printf(", \""); |
| while (cp < ep) { |
| safeputchar(*cp); |
| cp++; |
| } |
| printf("\""); |
| } else |
| dnsname_print(cp, ep); |
| if ((EXTRACT_16BITS(&ni6->ni_flags) & 0x01) != 0) |
| printf(" [TTL=%u]", *(u_int32_t *)(ni6 + 1)); |
| break; |
| case NI_QTYPE_NODEADDR: |
| if (needcomma) |
| printf(", "); |
| printf("node addresses"); |
| i = sizeof(*ni6); |
| while (i < siz) { |
| if (i + sizeof(struct in6_addr) + sizeof(int32_t) > siz) |
| break; |
| printf(" %s", getname6(bp + i)); |
| i += sizeof(struct in6_addr); |
| printf("(%d)", (int32_t)EXTRACT_32BITS(bp + i)); |
| i += sizeof(int32_t); |
| } |
| i = ni6->ni_flags; |
| if (!i) |
| break; |
| printf(" [%s%s%s%s%s%s%s]", |
| (i & NI_NODEADDR_FLAG_ANYCAST) ? "a" : "", |
| (i & NI_NODEADDR_FLAG_GLOBAL) ? "G" : "", |
| (i & NI_NODEADDR_FLAG_SITELOCAL) ? "S" : "", |
| (i & NI_NODEADDR_FLAG_LINKLOCAL) ? "L" : "", |
| (i & NI_NODEADDR_FLAG_COMPAT) ? "C" : "", |
| (i & NI_NODEADDR_FLAG_ALL) ? "A" : "", |
| (i & NI_NODEADDR_FLAG_TRUNCATE) ? "T" : ""); |
| break; |
| default: |
| if (needcomma) |
| printf(", "); |
| printf("unknown"); |
| break; |
| } |
| |
| /*(*/ |
| printf(")"); |
| break; |
| } |
| return; |
| |
| trunc: |
| fputs("[|icmp6]", stdout); |
| } |
| |
| static void |
| icmp6_rrenum_print(const u_char *bp, const u_char *ep) |
| { |
| struct icmp6_router_renum *rr6; |
| const char *cp; |
| struct rr_pco_match *match; |
| struct rr_pco_use *use; |
| char hbuf[NI_MAXHOST]; |
| int n; |
| |
| if (ep < bp) |
| return; |
| rr6 = (struct icmp6_router_renum *)bp; |
| cp = (const char *)(rr6 + 1); |
| |
| TCHECK(rr6->rr_reserved); |
| switch (rr6->rr_code) { |
| case ICMP6_ROUTER_RENUMBERING_COMMAND: |
| printf("router renum: command"); |
| break; |
| case ICMP6_ROUTER_RENUMBERING_RESULT: |
| printf("router renum: result"); |
| break; |
| case ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET: |
| printf("router renum: sequence number reset"); |
| break; |
| default: |
| printf("router renum: code-#%d", rr6->rr_code); |
| break; |
| } |
| |
| printf(", seq=%u", EXTRACT_32BITS(&rr6->rr_seqnum)); |
| |
| if (vflag) { |
| #define F(x, y) ((rr6->rr_flags) & (x) ? (y) : "") |
| printf("["); /*]*/ |
| if (rr6->rr_flags) { |
| printf("%s%s%s%s%s,", F(ICMP6_RR_FLAGS_TEST, "T"), |
| F(ICMP6_RR_FLAGS_REQRESULT, "R"), |
| F(ICMP6_RR_FLAGS_FORCEAPPLY, "A"), |
| F(ICMP6_RR_FLAGS_SPECSITE, "S"), |
| F(ICMP6_RR_FLAGS_PREVDONE, "P")); |
| } |
| printf("seg=%u,", rr6->rr_segnum); |
| printf("maxdelay=%u", EXTRACT_16BITS(&rr6->rr_maxdelay)); |
| if (rr6->rr_reserved) |
| printf("rsvd=0x%x", EXTRACT_32BITS(&rr6->rr_reserved)); |
| /*[*/ |
| printf("]"); |
| #undef F |
| } |
| |
| if (rr6->rr_code == ICMP6_ROUTER_RENUMBERING_COMMAND) { |
| match = (struct rr_pco_match *)cp; |
| cp = (const char *)(match + 1); |
| |
| TCHECK(match->rpm_prefix); |
| |
| if (vflag > 1) |
| printf("\n\t"); |
| else |
| printf(" "); |
| printf("match("); /*)*/ |
| switch (match->rpm_code) { |
| case RPM_PCO_ADD: printf("add"); break; |
| case RPM_PCO_CHANGE: printf("change"); break; |
| case RPM_PCO_SETGLOBAL: printf("setglobal"); break; |
| default: printf("#%u", match->rpm_code); break; |
| } |
| |
| if (vflag) { |
| printf(",ord=%u", match->rpm_ordinal); |
| printf(",min=%u", match->rpm_minlen); |
| printf(",max=%u", match->rpm_maxlen); |
| } |
| if (inet_ntop(AF_INET6, &match->rpm_prefix, hbuf, sizeof(hbuf))) |
| printf(",%s/%u", hbuf, match->rpm_matchlen); |
| else |
| printf(",?/%u", match->rpm_matchlen); |
| /*(*/ |
| printf(")"); |
| |
| n = match->rpm_len - 3; |
| if (n % 4) |
| goto trunc; |
| n /= 4; |
| while (n-- > 0) { |
| use = (struct rr_pco_use *)cp; |
| cp = (const char *)(use + 1); |
| |
| TCHECK(use->rpu_prefix); |
| |
| if (vflag > 1) |
| printf("\n\t"); |
| else |
| printf(" "); |
| printf("use("); /*)*/ |
| if (use->rpu_flags) { |
| #define F(x, y) ((use->rpu_flags) & (x) ? (y) : "") |
| printf("%s%s,", |
| F(ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME, "V"), |
| F(ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME, "P")); |
| #undef F |
| } |
| if (vflag) { |
| printf("mask=0x%x,", use->rpu_ramask); |
| printf("raflags=0x%x,", use->rpu_raflags); |
| if (~use->rpu_vltime == 0) |
| printf("vltime=infty,"); |
| else |
| printf("vltime=%u,", |
| EXTRACT_32BITS(&use->rpu_vltime)); |
| if (~use->rpu_pltime == 0) |
| printf("pltime=infty,"); |
| else |
| printf("pltime=%u,", |
| EXTRACT_32BITS(&use->rpu_pltime)); |
| } |
| if (inet_ntop(AF_INET6, &use->rpu_prefix, hbuf, |
| sizeof(hbuf))) |
| printf("%s/%u/%u", hbuf, use->rpu_uselen, |
| use->rpu_keeplen); |
| else |
| printf("?/%u/%u", use->rpu_uselen, |
| use->rpu_keeplen); |
| /*(*/ |
| printf(")"); |
| } |
| } |
| |
| return; |
| |
| trunc: |
| fputs("[|icmp6]", stdout); |
| } |
| |
| #endif /* INET6 */ |
