* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-icmp6.c,v 1.4 2000-03-13 05:00:04 itojun Exp $";
-#endif
-
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef INET6
-#include <ctype.h>
+#include <tcpdump-stdinc.h>
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/socket.h>
+#include <stdio.h>
+#include <string.h>
-#include <net/if.h>
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
+#include "ip6.h"
+#include "ipproto.h"
-#include <arpa/inet.h>
+#include "udp.h"
+#include "ah.h"
-#include <stdio.h>
+/* NetBSD: icmp6.h,v 1.13 2000/08/03 16:30:37 itojun Exp */
+/* $KAME: icmp6.h,v 1.22 2000/08/03 15:25:16 jinmei Exp $ */
-#include <netinet/ip6.h>
-#include <netinet/icmp6.h>
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * 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 of the project 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 PROJECT 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 PROJECT 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.
+ */
-#include "interface.h"
-#include "addrtoname.h"
+struct icmp6_hdr {
+ uint8_t icmp6_type; /* type field */
+ uint8_t icmp6_code; /* code field */
+ uint16_t icmp6_cksum; /* checksum field */
+ union {
+ uint32_t icmp6_un_data32[1]; /* type-specific field */
+ uint16_t icmp6_un_data16[2]; /* type-specific field */
+ uint8_t icmp6_un_data8[4]; /* type-specific field */
+ } icmp6_dataun;
+};
-void icmp6_opt_print(const u_char *, int);
-void mld6_print(const u_char *);
+#define icmp6_data32 icmp6_dataun.icmp6_un_data32
+#define icmp6_data16 icmp6_dataun.icmp6_un_data16
+#define icmp6_data8 icmp6_dataun.icmp6_un_data8
+#define icmp6_pptr icmp6_data32[0] /* parameter prob */
+#define icmp6_mtu icmp6_data32[0] /* packet too big */
+#define icmp6_id icmp6_data16[0] /* echo request/reply */
+#define icmp6_seq icmp6_data16[1] /* echo request/reply */
+#define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */
-void
-icmp6_print(register const u_char *bp, register const u_char *bp2)
+#define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */
+#define ICMP6_PACKET_TOO_BIG 2 /* packet too big */
+#define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */
+#define ICMP6_PARAM_PROB 4 /* ip6 header bad */
+
+#define ICMP6_ECHO_REQUEST 128 /* echo service */
+#define ICMP6_ECHO_REPLY 129 /* echo reply */
+#define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */
+#define MLD6_LISTENER_QUERY 130 /* multicast listener query */
+#define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */
+#define MLD6_LISTENER_REPORT 131 /* multicast listener report */
+#define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */
+#define MLD6_LISTENER_DONE 132 /* multicast listener done */
+
+#define ND_ROUTER_SOLICIT 133 /* router solicitation */
+#define ND_ROUTER_ADVERT 134 /* router advertisement */
+#define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */
+#define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisement */
+#define ND_REDIRECT 137 /* redirect */
+
+#define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
+
+#define ICMP6_WRUREQUEST 139 /* who are you request */
+#define ICMP6_WRUREPLY 140 /* who are you reply */
+#define ICMP6_FQDN_QUERY 139 /* FQDN query */
+#define ICMP6_FQDN_REPLY 140 /* FQDN reply */
+#define ICMP6_NI_QUERY 139 /* node information request */
+#define ICMP6_NI_REPLY 140 /* node information reply */
+#define IND_SOLICIT 141 /* inverse neighbor solicitation */
+#define IND_ADVERT 142 /* inverse neighbor advertisement */
+
+#define ICMP6_V2_MEMBERSHIP_REPORT 143 /* v2 membership report */
+#define MLDV2_LISTENER_REPORT 143 /* v2 multicast listener report */
+#define ICMP6_HADISCOV_REQUEST 144
+#define ICMP6_HADISCOV_REPLY 145
+#define ICMP6_MOBILEPREFIX_SOLICIT 146
+#define ICMP6_MOBILEPREFIX_ADVERT 147
+
+#define MLD6_MTRACE_RESP 200 /* mtrace response(to sender) */
+#define MLD6_MTRACE 201 /* mtrace messages */
+
+#define ICMP6_MAXTYPE 201
+
+#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
+#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
+#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
+#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
+#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
+#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
+
+#define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
+#define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
+
+#define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
+#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
+#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
+
+#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
+
+#define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
+#define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
+#define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
+
+#define ICMP6_NI_SUCCESS 0 /* node information successful reply */
+#define ICMP6_NI_REFUSED 1 /* node information request is refused */
+#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
+
+#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
+#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
+#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
+
+/* Used in kernel only */
+#define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
+#define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
+
+/*
+ * Multicast Listener Discovery
+ */
+struct mld6_hdr {
+ struct icmp6_hdr mld6_hdr;
+ struct in6_addr mld6_addr; /* multicast address */
+};
+
+#define mld6_type mld6_hdr.icmp6_type
+#define mld6_code mld6_hdr.icmp6_code
+#define mld6_cksum mld6_hdr.icmp6_cksum
+#define mld6_maxdelay mld6_hdr.icmp6_data16[0]
+#define mld6_reserved mld6_hdr.icmp6_data16[1]
+
+#define MLD_MINLEN 24
+#define MLDV2_MINLEN 28
+
+/*
+ * Neighbor Discovery
+ */
+
+struct nd_router_solicit { /* router solicitation */
+ struct icmp6_hdr nd_rs_hdr;
+ /* could be followed by options */
+};
+
+#define nd_rs_type nd_rs_hdr.icmp6_type
+#define nd_rs_code nd_rs_hdr.icmp6_code
+#define nd_rs_cksum nd_rs_hdr.icmp6_cksum
+#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
+
+struct nd_router_advert { /* router advertisement */
+ struct icmp6_hdr nd_ra_hdr;
+ uint32_t nd_ra_reachable; /* reachable time */
+ uint32_t nd_ra_retransmit; /* retransmit timer */
+ /* could be followed by options */
+};
+
+#define nd_ra_type nd_ra_hdr.icmp6_type
+#define nd_ra_code nd_ra_hdr.icmp6_code
+#define nd_ra_cksum nd_ra_hdr.icmp6_cksum
+#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
+#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
+#define ND_RA_FLAG_MANAGED 0x80
+#define ND_RA_FLAG_OTHER 0x40
+#define ND_RA_FLAG_HOME_AGENT 0x20
+
+/*
+ * Router preference values based on draft-draves-ipngwg-router-selection-01.
+ * These are non-standard definitions.
+ */
+#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
+
+#define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
+#define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
+#define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
+#define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
+
+#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
+
+struct nd_neighbor_solicit { /* neighbor solicitation */
+ struct icmp6_hdr nd_ns_hdr;
+ struct in6_addr nd_ns_target; /*target address */
+ /* could be followed by options */
+};
+
+#define nd_ns_type nd_ns_hdr.icmp6_type
+#define nd_ns_code nd_ns_hdr.icmp6_code
+#define nd_ns_cksum nd_ns_hdr.icmp6_cksum
+#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
+
+struct nd_neighbor_advert { /* neighbor advertisement */
+ struct icmp6_hdr nd_na_hdr;
+ struct in6_addr nd_na_target; /* target address */
+ /* could be followed by options */
+};
+
+#define nd_na_type nd_na_hdr.icmp6_type
+#define nd_na_code nd_na_hdr.icmp6_code
+#define nd_na_cksum nd_na_hdr.icmp6_cksum
+#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
+
+#define ND_NA_FLAG_ROUTER 0x80000000
+#define ND_NA_FLAG_SOLICITED 0x40000000
+#define ND_NA_FLAG_OVERRIDE 0x20000000
+
+struct nd_redirect { /* redirect */
+ struct icmp6_hdr nd_rd_hdr;
+ struct in6_addr nd_rd_target; /* target address */
+ struct in6_addr nd_rd_dst; /* destination address */
+ /* could be followed by options */
+};
+
+#define nd_rd_type nd_rd_hdr.icmp6_type
+#define nd_rd_code nd_rd_hdr.icmp6_code
+#define nd_rd_cksum nd_rd_hdr.icmp6_cksum
+#define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
+
+struct nd_opt_hdr { /* Neighbor discovery option header */
+ uint8_t nd_opt_type;
+ uint8_t nd_opt_len;
+ /* followed by option specific data*/
+};
+
+#define ND_OPT_SOURCE_LINKADDR 1
+#define ND_OPT_TARGET_LINKADDR 2
+#define ND_OPT_PREFIX_INFORMATION 3
+#define ND_OPT_REDIRECTED_HEADER 4
+#define ND_OPT_MTU 5
+#define ND_OPT_ADVINTERVAL 7
+#define ND_OPT_HOMEAGENT_INFO 8
+#define ND_OPT_ROUTE_INFO 24 /* RFC4191 */
+#define ND_OPT_RDNSS 25
+#define ND_OPT_DNSSL 31
+
+struct nd_opt_prefix_info { /* prefix information */
+ uint8_t nd_opt_pi_type;
+ uint8_t nd_opt_pi_len;
+ uint8_t nd_opt_pi_prefix_len;
+ uint8_t nd_opt_pi_flags_reserved;
+ uint8_t nd_opt_pi_valid_time[4];
+ uint8_t nd_opt_pi_preferred_time[4];
+ uint8_t nd_opt_pi_reserved2[4];
+ struct in6_addr nd_opt_pi_prefix;
+};
+
+#define ND_OPT_PI_FLAG_ONLINK 0x80
+#define ND_OPT_PI_FLAG_AUTO 0x40
+#define ND_OPT_PI_FLAG_ROUTER 0x20 /*2292bis*/
+
+struct nd_opt_rd_hdr { /* redirected header */
+ uint8_t nd_opt_rh_type;
+ uint8_t nd_opt_rh_len;
+ uint16_t nd_opt_rh_reserved1;
+ uint32_t nd_opt_rh_reserved2;
+ /* followed by IP header and data */
+};
+
+struct nd_opt_mtu { /* MTU option */
+ uint8_t nd_opt_mtu_type;
+ uint8_t nd_opt_mtu_len;
+ uint16_t nd_opt_mtu_reserved;
+ uint32_t nd_opt_mtu_mtu;
+};
+
+struct nd_opt_rdnss { /* RDNSS RFC 6106 5.1 */
+ uint8_t nd_opt_rdnss_type;
+ uint8_t nd_opt_rdnss_len;
+ uint16_t nd_opt_rdnss_reserved;
+ uint32_t nd_opt_rdnss_lifetime;
+ struct in6_addr nd_opt_rdnss_addr[1]; /* variable-length */
+};
+
+struct nd_opt_dnssl { /* DNSSL RFC 6106 5.2 */
+ uint8_t nd_opt_dnssl_type;
+ uint8_t nd_opt_dnssl_len;
+ uint16_t nd_opt_dnssl_reserved;
+ uint32_t nd_opt_dnssl_lifetime;
+ /* followed by list of DNS search domains, variable-length */
+};
+
+struct nd_opt_advinterval { /* Advertisement interval option */
+ uint8_t nd_opt_adv_type;
+ uint8_t nd_opt_adv_len;
+ uint16_t nd_opt_adv_reserved;
+ uint32_t nd_opt_adv_interval;
+};
+
+struct nd_opt_homeagent_info { /* Home Agent info */
+ uint8_t nd_opt_hai_type;
+ uint8_t nd_opt_hai_len;
+ uint16_t nd_opt_hai_reserved;
+ int16_t nd_opt_hai_preference;
+ uint16_t nd_opt_hai_lifetime;
+};
+
+struct nd_opt_route_info { /* route info */
+ uint8_t nd_opt_rti_type;
+ uint8_t nd_opt_rti_len;
+ uint8_t nd_opt_rti_prefixlen;
+ uint8_t nd_opt_rti_flags;
+ uint32_t nd_opt_rti_lifetime;
+ /* prefix follows */
+};
+
+/*
+ * icmp6 namelookup
+ */
+
+struct icmp6_namelookup {
+ struct icmp6_hdr icmp6_nl_hdr;
+ uint8_t icmp6_nl_nonce[8];
+ int32_t icmp6_nl_ttl;
+#if 0
+ uint8_t icmp6_nl_len;
+ uint8_t icmp6_nl_name[3];
+#endif
+ /* could be followed by options */
+};
+
+/*
+ * icmp6 node information
+ */
+struct icmp6_nodeinfo {
+ struct icmp6_hdr icmp6_ni_hdr;
+ uint8_t icmp6_ni_nonce[8];
+ /* could be followed by reply data */
+};
+
+#define ni_type icmp6_ni_hdr.icmp6_type
+#define ni_code icmp6_ni_hdr.icmp6_code
+#define ni_cksum icmp6_ni_hdr.icmp6_cksum
+#define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
+#define ni_flags icmp6_ni_hdr.icmp6_data16[1]
+
+#define NI_QTYPE_NOOP 0 /* NOOP */
+#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
+#define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
+#define NI_QTYPE_DNSNAME 2 /* DNS Name */
+#define NI_QTYPE_NODEADDR 3 /* Node Addresses */
+#define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
+
+/* network endian */
+#define NI_SUPTYPE_FLAG_COMPRESS ((uint16_t)htons(0x1))
+#define NI_FQDN_FLAG_VALIDTTL ((uint16_t)htons(0x1))
+
+/* network endian */
+#define NI_NODEADDR_FLAG_TRUNCATE ((uint16_t)htons(0x1))
+#define NI_NODEADDR_FLAG_ALL ((uint16_t)htons(0x2))
+#define NI_NODEADDR_FLAG_COMPAT ((uint16_t)htons(0x4))
+#define NI_NODEADDR_FLAG_LINKLOCAL ((uint16_t)htons(0x8))
+#define NI_NODEADDR_FLAG_SITELOCAL ((uint16_t)htons(0x10))
+#define NI_NODEADDR_FLAG_GLOBAL ((uint16_t)htons(0x20))
+#define NI_NODEADDR_FLAG_ANYCAST ((uint16_t)htons(0x40)) /* just experimental. not in spec */
+
+struct ni_reply_fqdn {
+ uint32_t ni_fqdn_ttl; /* TTL */
+ uint8_t ni_fqdn_namelen; /* length in octets of the FQDN */
+ uint8_t ni_fqdn_name[3]; /* XXX: alignment */
+};
+
+/*
+ * Router Renumbering. as router-renum-08.txt
+ */
+struct icmp6_router_renum { /* router renumbering header */
+ struct icmp6_hdr rr_hdr;
+ uint8_t rr_segnum;
+ uint8_t rr_flags;
+ uint16_t rr_maxdelay;
+ uint32_t rr_reserved;
+};
+#define ICMP6_RR_FLAGS_TEST 0x80
+#define ICMP6_RR_FLAGS_REQRESULT 0x40
+#define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
+#define ICMP6_RR_FLAGS_SPECSITE 0x10
+#define ICMP6_RR_FLAGS_PREVDONE 0x08
+
+#define rr_type rr_hdr.icmp6_type
+#define rr_code rr_hdr.icmp6_code
+#define rr_cksum rr_hdr.icmp6_cksum
+#define rr_seqnum rr_hdr.icmp6_data32[0]
+
+struct rr_pco_match { /* match prefix part */
+ uint8_t rpm_code;
+ uint8_t rpm_len;
+ uint8_t rpm_ordinal;
+ uint8_t rpm_matchlen;
+ uint8_t rpm_minlen;
+ uint8_t rpm_maxlen;
+ uint16_t rpm_reserved;
+ struct in6_addr rpm_prefix;
+};
+
+#define RPM_PCO_ADD 1
+#define RPM_PCO_CHANGE 2
+#define RPM_PCO_SETGLOBAL 3
+#define RPM_PCO_MAX 4
+
+struct rr_pco_use { /* use prefix part */
+ uint8_t rpu_uselen;
+ uint8_t rpu_keeplen;
+ uint8_t rpu_ramask;
+ uint8_t rpu_raflags;
+ uint32_t rpu_vltime;
+ uint32_t rpu_pltime;
+ uint32_t rpu_flags;
+ struct in6_addr rpu_prefix;
+};
+#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
+#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
+
+/* network endian */
+#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME ((uint32_t)htonl(0x80000000))
+#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME ((uint32_t)htonl(0x40000000))
+
+struct rr_result { /* router renumbering result message */
+ uint16_t rrr_flags;
+ uint8_t rrr_ordinal;
+ uint8_t rrr_matchedlen;
+ uint32_t rrr_ifid;
+ struct in6_addr rrr_prefix;
+};
+/* network endian */
+#define ICMP6_RR_RESULT_FLAGS_OOB ((uint16_t)htons(0x0002))
+#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN ((uint16_t)htons(0x0001))
+
+static const char *get_rtpref(u_int);
+static const char *get_lifetime(uint32_t);
+static void print_lladdr(netdissect_options *ndo, const u_char *, size_t);
+static void icmp6_opt_print(netdissect_options *ndo, const u_char *, int);
+static void mld6_print(netdissect_options *ndo, const u_char *);
+static void mldv2_report_print(netdissect_options *ndo, const u_char *, u_int);
+static void mldv2_query_print(netdissect_options *ndo, const u_char *, u_int);
+static const struct udphdr *get_upperlayer(netdissect_options *ndo, const u_char *, u_int *);
+static void dnsname_print(netdissect_options *ndo, const u_char *, const u_char *);
+static void icmp6_nodeinfo_print(netdissect_options *ndo, u_int, const u_char *, const u_char *);
+static void icmp6_rrenum_print(netdissect_options *ndo, const u_char *, const u_char *);
+
+#ifndef abs
+#define abs(a) ((0 < (a)) ? (a) : -(a))
+#endif
+
+#include "rpl.h"
+
+static const 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 const 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 const 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 const 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 const 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 const 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_DNSSL, "dnssl"},
+ { ND_OPT_ADVINTERVAL, "advertisement interval"},
+ { ND_OPT_HOMEAGENT_INFO, "homeagent information"},
+ { ND_OPT_ROUTE_INFO, "route info"},
+ { 0, NULL }
+};
+
+/* mldv2 report types */
+static const 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(uint32_t v)
+{
+ static char buf[20];
+
+ if (v == (uint32_t)~0UL)
+ return "infinity";
+ else {
+ snprintf(buf, sizeof(buf), "%us", v);
+ return buf;
+ }
+}
+
+static void
+print_lladdr(netdissect_options *ndo, const uint8_t *p, size_t l)
{
- register const struct icmp6_hdr *dp;
- register const struct ip6_hdr *ip;
- register const char *str;
- register const struct ip6_hdr *oip;
- register const struct udphdr *ouh;
- register int hlen, dport;
- register const u_char *ep;
- char buf[256];
- int icmp6len;
+ const uint8_t *ep, *q;
+
+ q = p;
+ ep = p + l;
+ while (l > 0 && q < ep) {
+ if (q > p)
+ ND_PRINT((ndo,":"));
+ ND_PRINT((ndo,"%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 uint8_t *)(void *)icp, len, len,
+ IPPROTO_ICMPV6);
+}
+
+const struct tok rpl_mop_values[] = {
+ { RPL_DIO_NONSTORING, "nonstoring"},
+ { RPL_DIO_STORING, "storing"},
+ { RPL_DIO_NONSTORING_MULTICAST, "nonstoring-multicast"},
+ { RPL_DIO_STORING_MULTICAST, "storing-multicast"},
+ { 0, NULL},
+};
+
+const struct tok rpl_subopt_values[] = {
+ { RPL_OPT_PAD0, "pad0"},
+ { RPL_OPT_PADN, "padN"},
+ { RPL_DIO_METRICS, "metrics"},
+ { RPL_DIO_ROUTINGINFO, "routinginfo"},
+ { RPL_DIO_CONFIG, "config"},
+ { RPL_DAO_RPLTARGET, "rpltarget"},
+ { RPL_DAO_TRANSITINFO, "transitinfo"},
+ { RPL_DIO_DESTPREFIX, "destprefix"},
+ { RPL_DAO_RPLTARGET_DESC, "rpltargetdesc"},
+ { 0, NULL},
+};
+
+static void
+rpl_format_dagid(char dagid_str[65], const u_char *dagid)
+{
+ char *d = dagid_str;
+ int i;
+
+ for(i=0;i<16;i++) {
+ if(isprint(dagid[i])) {
+ *d++ = dagid[i];
+ } else {
+ snprintf(d,5,"0x%02x", dagid[i]); /* 4 + null char */
+ d += 4;
+ }
+ }
+ *d++ = '\0';
+}
+
+static void
+rpl_dio_printopt(netdissect_options *ndo,
+ const struct rpl_dio_genoption *opt,
+ u_int length)
+{
+ if(length < RPL_DIO_GENOPTION_LEN) return;
+ length -= RPL_DIO_GENOPTION_LEN;
+
+ ND_TCHECK(opt->rpl_dio_len);
+
+ while((opt->rpl_dio_type == RPL_OPT_PAD0 &&
+ (u_char *)opt < ndo->ndo_snapend) ||
+ ND_TTEST2(*opt,(opt->rpl_dio_len+2))) {
+
+ unsigned int optlen = opt->rpl_dio_len+2;
+ if(opt->rpl_dio_type == RPL_OPT_PAD0) {
+ optlen = 1;
+ ND_PRINT((ndo, " opt:pad0"));
+ } else {
+ ND_PRINT((ndo, " opt:%s len:%u ",
+ tok2str(rpl_subopt_values, "%subopt:%u", opt->rpl_dio_type),
+ optlen));
+ if(ndo->ndo_vflag > 2) {
+ unsigned int paylen = opt->rpl_dio_len;
+ if(paylen > length) paylen = length;
+ hex_print(ndo,
+ " ",
+ ((uint8_t *)opt) + RPL_DIO_GENOPTION_LEN, /* content of DIO option */
+ paylen);
+ }
+ }
+ opt = (struct rpl_dio_genoption *)(((char *)opt) + optlen);
+ length -= optlen;
+ }
+ return;
+trunc:
+ ND_PRINT((ndo," [|truncated]"));
+ return;
+}
+
+static void
+rpl_dio_print(netdissect_options *ndo,
+ const u_char *bp, u_int length)
+{
+ const struct nd_rpl_dio *dio = (struct nd_rpl_dio *)bp;
+ char dagid_str[65];
+
+ ND_TCHECK(*dio);
+ rpl_format_dagid(dagid_str, dio->rpl_dagid);
+
+ ND_PRINT((ndo, " [dagid:%s,seq:%u,instance:%u,rank:%u,%smop:%s,prf:%u]",
+ dagid_str,
+ dio->rpl_dtsn,
+ dio->rpl_instanceid,
+ EXTRACT_16BITS(&dio->rpl_dagrank),
+ RPL_DIO_GROUNDED(dio->rpl_mopprf) ? "grounded,":"",
+ tok2str(rpl_mop_values, "mop%u", RPL_DIO_MOP(dio->rpl_mopprf)),
+ RPL_DIO_PRF(dio->rpl_mopprf)));
+
+ if(ndo->ndo_vflag > 1) {
+ struct rpl_dio_genoption *opt = (struct rpl_dio_genoption *)&dio[1];
+ rpl_dio_printopt(ndo, opt, length);
+ }
+ return;
+trunc:
+ ND_PRINT((ndo," [|truncated]"));
+ return;
+}
+
+static void
+rpl_dao_print(netdissect_options *ndo,
+ const u_char *bp, u_int length)
+{
+ const struct nd_rpl_dao *dao = (struct nd_rpl_dao *)bp;
+ char dagid_str[65];
+
+ ND_TCHECK(*dao);
+ if (length < ND_RPL_DAO_MIN_LEN)
+ goto tooshort;
+
+ strcpy(dagid_str,"<elided>");
+ bp += ND_RPL_DAO_MIN_LEN;
+ length -= ND_RPL_DAO_MIN_LEN;
+ if(RPL_DAO_D(dao->rpl_flags)) {
+ ND_TCHECK2(dao->rpl_dagid, DAGID_LEN);
+ if (length < DAGID_LEN)
+ goto tooshort;
+ rpl_format_dagid(dagid_str, dao->rpl_dagid);
+ bp += DAGID_LEN;
+ length -= DAGID_LEN;
+ }
+
+ ND_PRINT((ndo, " [dagid:%s,seq:%u,instance:%u%s%s,%02x]",
+ dagid_str,
+ dao->rpl_daoseq,
+ dao->rpl_instanceid,
+ RPL_DAO_K(dao->rpl_flags) ? ",acK":"",
+ RPL_DAO_D(dao->rpl_flags) ? ",Dagid":"",
+ dao->rpl_flags));
+
+ if(ndo->ndo_vflag > 1) {
+ const struct rpl_dio_genoption *opt = (struct rpl_dio_genoption *)bp;
+ rpl_dio_printopt(ndo, opt, length);
+ }
+ return;
+
+trunc:
+ ND_PRINT((ndo," [|truncated]"));
+ return;
+
+tooshort:
+ ND_PRINT((ndo," [|length too short]"));
+ return;
+}
+
+static void
+rpl_daoack_print(netdissect_options *ndo,
+ const u_char *bp, u_int length)
+{
+ const struct nd_rpl_daoack *daoack = (struct nd_rpl_daoack *)bp;
+ char dagid_str[65];
+
+ ND_TCHECK2(*daoack, ND_RPL_DAOACK_MIN_LEN);
+ if (length < ND_RPL_DAOACK_MIN_LEN)
+ goto tooshort;
+
+ strcpy(dagid_str,"<elided>");
+ bp += ND_RPL_DAOACK_MIN_LEN;
+ length -= ND_RPL_DAOACK_MIN_LEN;
+ if(RPL_DAOACK_D(daoack->rpl_flags)) {
+ ND_TCHECK2(daoack->rpl_dagid, 16);
+ if (length < DAGID_LEN)
+ goto tooshort;
+ rpl_format_dagid(dagid_str, daoack->rpl_dagid);
+ bp += DAGID_LEN;
+ length -= DAGID_LEN;
+ }
+
+ ND_PRINT((ndo, " [dagid:%s,seq:%u,instance:%u,status:%u]",
+ dagid_str,
+ daoack->rpl_daoseq,
+ daoack->rpl_instanceid,
+ daoack->rpl_status));
+
+ /* no officially defined options for DAOACK, but print any we find */
+ if(ndo->ndo_vflag > 1) {
+ const struct rpl_dio_genoption *opt = (struct rpl_dio_genoption *)bp;
+ rpl_dio_printopt(ndo, opt, length);
+ }
+ return;
+
+trunc:
+ ND_PRINT((ndo," [|dao-truncated]"));
+ return;
+
+tooshort:
+ ND_PRINT((ndo," [|dao-length too short]"));
+ return;
+}
+
+static void
+rpl_print(netdissect_options *ndo,
+ const struct icmp6_hdr *hdr,
+ const u_char *bp, u_int length)
+{
+ int secured = hdr->icmp6_code & 0x80;
+ int basecode= hdr->icmp6_code & 0x7f;
+
+ if(secured) {
+ ND_PRINT((ndo, ", (SEC) [worktodo]"));
+ /* XXX
+ * the next header pointer needs to move forward to
+ * skip the secure part.
+ */
+ return;
+ } else {
+ ND_PRINT((ndo, ", (CLR)"));
+ }
+
+ switch(basecode) {
+ case ND_RPL_DAG_IS:
+ ND_PRINT((ndo, "DODAG Information Solicitation"));
+ if(ndo->ndo_vflag) {
+ }
+ break;
+ case ND_RPL_DAG_IO:
+ ND_PRINT((ndo, "DODAG Information Object"));
+ if(ndo->ndo_vflag) {
+ rpl_dio_print(ndo, bp, length);
+ }
+ break;
+ case ND_RPL_DAO:
+ ND_PRINT((ndo, "Destination Advertisement Object"));
+ if(ndo->ndo_vflag) {
+ rpl_dao_print(ndo, bp, length);
+ }
+ break;
+ case ND_RPL_DAO_ACK:
+ ND_PRINT((ndo, "Destination Advertisement Object Ack"));
+ if(ndo->ndo_vflag) {
+ rpl_daoack_print(ndo, bp, length);
+ }
+ break;
+ default:
+ ND_PRINT((ndo, "RPL message, unknown code %u",hdr->icmp6_code));
+ break;
+ }
+ return;
#if 0
-#define TCHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) goto trunc
+trunc:
+ ND_PRINT((ndo," [|truncated]"));
+ return;
#endif
+}
+
+
+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);
- str = buf;
- /* 'ep' points to the end of avaible data. */
- ep = snapend;
- if (ip->ip6_plen)
- icmp6len = (ntohs(ip->ip6_plen) + sizeof(struct ip6_hdr) -
- (bp - bp2));
- else /* XXX: jumbo payload case... */
- icmp6len = snapend - bp;
+ /* 'ep' points to the end of available data. */
+ ep = ndo->ndo_snapend;
-#if 0
- (void)printf("%s > %s: ",
- ip6addr_string(&ip->ip6_src),
- ip6addr_string(&ip->ip6_dst));
-#endif
+ ND_TCHECK(dp->icmp6_cksum);
+
+ if (ndo->ndo_vflag && !fragmented) {
+ uint16_t sum, udp_sum;
+
+ if (ND_TTEST2(bp[0], length)) {
+ udp_sum = EXTRACT_16BITS(&dp->icmp6_cksum);
+ sum = icmp6_cksum(ip, dp, length);
+ if (sum != 0)
+ ND_PRINT((ndo,"[bad icmp6 cksum 0x%04x -> 0x%04x!] ",
+ udp_sum,
+ in_cksum_shouldbe(udp_sum, sum)));
+ else
+ ND_PRINT((ndo,"[icmp6 sum ok] "));
+ }
+ }
+
+ ND_PRINT((ndo,"ICMP6, %s", tok2str(icmp6_type_values,"unknown icmp6 type (%u)",dp->icmp6_type)));
- TCHECK(dp->icmp6_code);
- switch(dp->icmp6_type) {
+ /* display cosmetics: print the packet length for printer that use the vflag now */
+ if (ndo->ndo_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 ))
+ ND_PRINT((ndo,", length %u", length));
+
+ switch (dp->icmp6_type) {
case ICMP6_DST_UNREACH:
- TCHECK(oip->ip6_dst);
+ ND_TCHECK(oip->ip6_dst);
+ ND_PRINT((ndo,", %s", tok2str(icmp6_dst_unreach_code_values,"unknown unreach code (%u)",dp->icmp6_code)));
switch (dp->icmp6_code) {
- case ICMP6_DST_UNREACH_NOROUTE:
- printf("icmp6: %s unreachable route",
- ip6addr_string(&oip->ip6_dst));
- break;
+
+ case ICMP6_DST_UNREACH_NOROUTE: /* fall through */
case ICMP6_DST_UNREACH_ADMIN:
- printf("icmp6: %s unreachable prohibited",
- ip6addr_string(&oip->ip6_dst));
- break;
-#ifdef ICMP6_DST_UNREACH_BEYONDSCOPE
- case ICMP6_DST_UNREACH_BEYONDSCOPE:
-#else
- case ICMP6_DST_UNREACH_NOTNEIGHBOR:
-#endif
- printf("icmp6: %s beyond scope of source address %s",
- ip6addr_string(&oip->ip6_dst),
- ip6addr_string(&oip->ip6_src));
- break;
case ICMP6_DST_UNREACH_ADDR:
- printf("icmp6: %s unreachable address",
- ip6addr_string(&oip->ip6_dst));
+ ND_PRINT((ndo," %s",ip6addr_string(ndo, &oip->ip6_dst)));
+ break;
+ case ICMP6_DST_UNREACH_BEYONDSCOPE:
+ ND_PRINT((ndo," %s, source address %s",
+ ip6addr_string(ndo, &oip->ip6_dst),
+ ip6addr_string(ndo, &oip->ip6_src)));
break;
case ICMP6_DST_UNREACH_NOPORT:
- TCHECK(oip->ip6_nxt);
- hlen = sizeof(struct ip6_hdr);
- ouh = (struct udphdr *)(((u_char *)oip) + hlen);
- dport = ntohs(ouh->uh_dport);
- switch (oip->ip6_nxt) {
+ if ((ouh = get_upperlayer(ndo, (u_char *)oip, &prot))
+ == NULL)
+ goto trunc;
+
+ dport = EXTRACT_16BITS(&ouh->uh_dport);
+ switch (prot) {
case IPPROTO_TCP:
- printf("icmp6: %s tcp port %s unreachable",
- ip6addr_string(&oip->ip6_dst),
- tcpport_string(dport));
+ ND_PRINT((ndo,", %s tcp port %s",
+ ip6addr_string(ndo, &oip->ip6_dst),
+ tcpport_string(dport)));
break;
case IPPROTO_UDP:
- printf("icmp6: %s udp port %s unreachable",
- ip6addr_string(&oip->ip6_dst),
- udpport_string(dport));
+ ND_PRINT((ndo,", %s udp port %s",
+ ip6addr_string(ndo, &oip->ip6_dst),
+ udpport_string(dport)));
break;
default:
- printf("icmp6: %s protocol %d port %d unreachable",
- ip6addr_string(&oip->ip6_dst),
- oip->ip6_nxt, dport);
+ ND_PRINT((ndo,", %s protocol %d port %d unreachable",
+ ip6addr_string(ndo, &oip->ip6_dst),
+ oip->ip6_nxt, dport));
break;
}
break;
default:
- printf("icmp6: %s unreachable code-#%d",
- ip6addr_string(&oip->ip6_dst),
- dp->icmp6_code);
- break;
+ if (ndo->ndo_vflag <= 1) {
+ print_unknown_data(ndo, bp,"\n\t",length);
+ return;
+ }
+ break;
}
break;
case ICMP6_PACKET_TOO_BIG:
- TCHECK(dp->icmp6_mtu);
- printf("icmp6: too big %u\n", (u_int32_t)ntohl(dp->icmp6_mtu));
+ ND_TCHECK(dp->icmp6_mtu);
+ ND_PRINT((ndo,", mtu %u", EXTRACT_32BITS(&dp->icmp6_mtu)));
break;
case ICMP6_TIME_EXCEEDED:
- TCHECK(oip->ip6_dst);
+ ND_TCHECK(oip->ip6_dst);
switch (dp->icmp6_code) {
case ICMP6_TIME_EXCEED_TRANSIT:
- printf("icmp6: time exceeded in-transit for %s",
- ip6addr_string(&oip->ip6_dst));
+ ND_PRINT((ndo," for %s",
+ ip6addr_string(ndo, &oip->ip6_dst)));
break;
case ICMP6_TIME_EXCEED_REASSEMBLY:
- printf("icmp6: ip6 reassembly time exceeded");
+ ND_PRINT((ndo," (reassembly)"));
break;
default:
- printf("icmp6: time exceeded code-#%d",
- dp->icmp6_code);
+ ND_PRINT((ndo,", unknown code (%u)", dp->icmp6_code));
break;
}
break;
case ICMP6_PARAM_PROB:
- TCHECK(oip->ip6_dst);
+ ND_TCHECK(oip->ip6_dst);
switch (dp->icmp6_code) {
case ICMP6_PARAMPROB_HEADER:
- printf("icmp6: parameter problem errorneous - octet %u\n",
- (u_int32_t)ntohl(dp->icmp6_pptr));
- break;
+ ND_PRINT((ndo,", erroneous - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr)));
+ break;
case ICMP6_PARAMPROB_NEXTHEADER:
- printf("icmp6: parameter problem next header - octet %u\n",
- (u_int32_t)ntohl(dp->icmp6_pptr));
- break;
+ ND_PRINT((ndo,", next header - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr)));
+ break;
case ICMP6_PARAMPROB_OPTION:
- printf("icmp6: parameter problem option - octet %u\n",
- (u_int32_t)ntohl(dp->icmp6_pptr));
- break;
+ ND_PRINT((ndo,", option - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr)));
+ break;
default:
- printf("icmp6: parameter problem code-#%d",
- dp->icmp6_code);
- break;
+ ND_PRINT((ndo,", code-#%d",
+ dp->icmp6_code));
+ break;
}
break;
case ICMP6_ECHO_REQUEST:
- printf("icmp6: echo request");
- break;
case ICMP6_ECHO_REPLY:
- printf("icmp6: echo reply");
+ ND_TCHECK(dp->icmp6_seq);
+ ND_PRINT((ndo,", seq %u", EXTRACT_16BITS(&dp->icmp6_seq)));
break;
case ICMP6_MEMBERSHIP_QUERY:
- printf("icmp6: multicast listener query ");
- mld6_print((const u_char *)dp);
+ if (length == MLD_MINLEN) {
+ mld6_print(ndo, (const u_char *)dp);
+ } else if (length >= MLDV2_MINLEN) {
+ ND_PRINT((ndo," v2"));
+ mldv2_query_print(ndo, (const u_char *)dp, length);
+ } else {
+ ND_PRINT((ndo," unknown-version (len %u) ", length));
+ }
break;
case ICMP6_MEMBERSHIP_REPORT:
- printf("icmp6: multicast listener report ");
- mld6_print((const u_char *)dp);
+ mld6_print(ndo, (const u_char *)dp);
break;
case ICMP6_MEMBERSHIP_REDUCTION:
- printf("icmp6: multicast listener done ");
- mld6_print((const u_char *)dp);
+ mld6_print(ndo, (const u_char *)dp);
break;
case ND_ROUTER_SOLICIT:
- printf("icmp6: router solicitation ");
- if (vflag) {
#define RTSOLLEN 8
- icmp6_opt_print((const u_char *)dp + RTSOLLEN,
- icmp6len - RTSOLLEN);
+ if (ndo->ndo_vflag) {
+ icmp6_opt_print(ndo, (const u_char *)dp + RTSOLLEN,
+ length - RTSOLLEN);
}
break;
case ND_ROUTER_ADVERT:
- printf("icmp6: router advertisement");
- if (vflag) {
+#define RTADVLEN 16
+ if (ndo->ndo_vflag) {
struct nd_router_advert *p;
p = (struct nd_router_advert *)dp;
- TCHECK(p->nd_ra_retransmit);
- printf("(chlim=%d, ", (int)p->nd_ra_curhoplimit);
- if (p->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED)
- printf("M");
- if (p->nd_ra_flags_reserved & ND_RA_FLAG_OTHER)
- printf("O");
- if (p->nd_ra_flags_reserved & ND_RA_FLAG_HA)
- printf("H");
- if (p->nd_ra_flags_reserved != 0)
- printf(" ");
- printf("router_ltime=%d, ", ntohs(p->nd_ra_router_lifetime));
- printf("reachable_time=%u, ",
- (u_int32_t)ntohl(p->nd_ra_reachable));
- printf("retrans_time=%u)",
- (u_int32_t)ntohl(p->nd_ra_retransmit));
-#define RTADVLEN 16
- icmp6_opt_print((const u_char *)dp + RTADVLEN,
- icmp6len - RTADVLEN);
+ ND_TCHECK(p->nd_ra_retransmit);
+ ND_PRINT((ndo,"\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(ndo, (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("icmp6: neighbor sol: who has %s",
- ip6addr_string(&p->nd_ns_target));
- if (vflag) {
+ ND_TCHECK(p->nd_ns_target);
+ ND_PRINT((ndo,", who has %s", ip6addr_string(ndo, &p->nd_ns_target)));
+ if (ndo->ndo_vflag) {
#define NDSOLLEN 24
- icmp6_opt_print((const u_char *)dp + NDSOLLEN,
- icmp6len - NDSOLLEN);
+ icmp6_opt_print(ndo, (const u_char *)dp + NDSOLLEN,
+ length - NDSOLLEN);
}
}
break;
struct nd_neighbor_advert *p;
p = (struct nd_neighbor_advert *)dp;
- TCHECK(p->nd_na_target);
- printf("icmp6: neighbor adv: tgt is %s",
- ip6addr_string(&p->nd_na_target));
- if (vflag) {
-#define ND_NA_FLAG_ALL \
- (ND_NA_FLAG_ROUTER|ND_NA_FLAG_SOLICITED|ND_NA_FLAG_OVERRIDE)
- /* we don't need ntohl() here. see advanced-api-04. */
- if (p->nd_na_flags_reserved & ND_NA_FLAG_ALL) {
-#undef ND_NA_FLAG_ALL
- u_int32_t flags;
-
- flags = p->nd_na_flags_reserved;
- printf("(");
- if (flags & ND_NA_FLAG_ROUTER)
- printf("R");
- if (flags & ND_NA_FLAG_SOLICITED)
- printf("S");
- if (flags & ND_NA_FLAG_OVERRIDE)
- printf("O");
- printf(")");
- }
+ ND_TCHECK(p->nd_na_target);
+ ND_PRINT((ndo,", tgt is %s",
+ ip6addr_string(ndo, &p->nd_na_target)));
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo,", 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,
- icmp6len - NDADVLEN);
+ icmp6_opt_print(ndo, (const u_char *)dp + NDADVLEN,
+ length - NDADVLEN);
+#undef NDADVLEN
}
}
break;
case ND_REDIRECT:
- {
#define RDR(i) ((struct nd_redirect *)(i))
- char tgtbuf[INET6_ADDRSTRLEN], dstbuf[INET6_ADDRSTRLEN];
-
- TCHECK(RDR(dp)->nd_rd_dst);
- inet_ntop(AF_INET6, &RDR(dp)->nd_rd_target,
- tgtbuf, INET6_ADDRSTRLEN);
- inet_ntop(AF_INET6, &RDR(dp)->nd_rd_dst,
- dstbuf, INET6_ADDRSTRLEN);
- printf("icmp6: redirect %s to %s", dstbuf, tgtbuf);
+ ND_TCHECK(RDR(dp)->nd_rd_dst);
+ ND_PRINT((ndo,", %s", getname6(ndo, (const u_char *)&RDR(dp)->nd_rd_dst)));
+ ND_TCHECK(RDR(dp)->nd_rd_target);
+ ND_PRINT((ndo," to %s",
+ getname6(ndo, (const u_char*)&RDR(dp)->nd_rd_target)));
#define REDIRECTLEN 40
- if (vflag) {
- icmp6_opt_print((const u_char *)dp + REDIRECTLEN,
- icmp6len - REDIRECTLEN);
+ if (ndo->ndo_vflag) {
+ icmp6_opt_print(ndo, (const u_char *)dp + REDIRECTLEN,
+ length - REDIRECTLEN);
}
break;
- }
+#undef REDIRECTLEN
+#undef RDR
case ICMP6_ROUTER_RENUMBERING:
- switch (dp->icmp6_code) {
- case ICMP6_ROUTER_RENUMBERING_COMMAND:
- printf("icmp6: router renum command");
+ icmp6_rrenum_print(ndo, bp, ep);
+ break;
+ case ICMP6_NI_QUERY:
+ case ICMP6_NI_REPLY:
+ icmp6_nodeinfo_print(ndo, length, bp, ep);
+ break;
+ case IND_SOLICIT:
+ case IND_ADVERT:
+ break;
+ case ICMP6_V2_MEMBERSHIP_REPORT:
+ mldv2_report_print(ndo, (const u_char *) dp, length);
+ break;
+ case ICMP6_MOBILEPREFIX_SOLICIT: /* fall through */
+ case ICMP6_HADISCOV_REQUEST:
+ ND_TCHECK(dp->icmp6_data16[0]);
+ ND_PRINT((ndo,", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0])));
+ break;
+ case ICMP6_HADISCOV_REPLY:
+ if (ndo->ndo_vflag) {
+ struct in6_addr *in6;
+ u_char *cp;
+
+ ND_TCHECK(dp->icmp6_data16[0]);
+ ND_PRINT((ndo,", 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++) {
+ ND_TCHECK(*in6);
+ ND_PRINT((ndo,", %s", ip6addr_string(ndo, in6)));
+ }
+ }
+ break;
+ case ICMP6_MOBILEPREFIX_ADVERT:
+ if (ndo->ndo_vflag) {
+ ND_TCHECK(dp->icmp6_data16[0]);
+ ND_PRINT((ndo,", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0])));
+ if (dp->icmp6_data16[1] & 0xc0)
+ ND_PRINT((ndo," "));
+ if (dp->icmp6_data16[1] & 0x80)
+ ND_PRINT((ndo,"M"));
+ if (dp->icmp6_data16[1] & 0x40)
+ ND_PRINT((ndo,"O"));
+#define MPADVLEN 8
+ icmp6_opt_print(ndo, (const u_char *)dp + MPADVLEN,
+ length - MPADVLEN);
+ }
+ break;
+ case ND_RPL_MESSAGE:
+ /* plus 4, because struct icmp6_hdr contains 4 bytes of icmp payload */
+ rpl_print(ndo, dp, &dp->icmp6_data8[0], length-sizeof(struct icmp6_hdr)+4);
+ break;
+ default:
+ ND_PRINT((ndo,", length %u", length));
+ if (ndo->ndo_vflag <= 1)
+ print_unknown_data(ndo, bp,"\n\t", length);
+ return;
+ }
+ if (!ndo->ndo_vflag)
+ ND_PRINT((ndo,", length %u", length));
+ return;
+trunc:
+ ND_PRINT((ndo, "[|icmp6]"));
+}
+
+static const struct udphdr *
+get_upperlayer(netdissect_options *ndo, const u_char *bp, u_int *prot)
+{
+ const u_char *ep;
+ const struct ip6_hdr *ip6 = (struct ip6_hdr *)bp;
+ const struct udphdr *uh;
+ const struct ip6_hbh *hbh;
+ const struct ip6_frag *fragh;
+ const struct ah *ah;
+ u_int nh;
+ int hlen;
+
+ /* 'ep' points to the end of available data. */
+ ep = ndo->ndo_snapend;
+
+ if (!ND_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 (ND_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 (!ND_TTEST(hbh->ip6h_len))
+ return(NULL);
+ nh = hbh->ip6h_nxt;
+ hlen = (hbh->ip6h_len + 1) << 3;
break;
- case ICMP6_ROUTER_RENUMBERING_RESULT:
- printf("icmp6: router renum result");
+
+ case IPPROTO_FRAGMENT: /* this should be odd, but try anyway */
+ fragh = (struct ip6_frag *)bp;
+ if (!ND_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;
- default:
- printf("icmp6: router renum code-#%d", dp->icmp6_code);
+
+ case IPPROTO_AH:
+ ah = (struct ah *)bp;
+ if (!ND_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);
}
- break;
-#ifdef ICMP6_WRUREQUEST
- case ICMP6_WRUREQUEST: /*ICMP6_FQDN_QUERY*/
- {
- int siz;
- siz = ep - (u_char *)(dp + 1);
- if (icmp6len > ep - (u_char *)dp) {
- printf("[|icmp6: who-are-you/FQDN request]");
+ }
+
+ return(NULL); /* should be notreached, though */
+}
+
+static void
+icmp6_opt_print(netdissect_options *ndo, const u_char *bp, int resid)
+{
+ const struct nd_opt_hdr *op;
+ const struct nd_opt_prefix_info *opp;
+ const struct nd_opt_mtu *opm;
+ const struct nd_opt_rdnss *oprd;
+ const struct nd_opt_dnssl *opds;
+ 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, *domp;
+ 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 = ndo->ndo_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;
+
+ ND_PRINT((ndo,"\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:
+ l = (op->nd_opt_len << 3) - 2;
+ print_lladdr(ndo, cp + 2, l);
break;
- }
- if (siz == 4)
- printf("icmp6: who-are-you request");
- else {
- printf("icmp6: FQDN request");
- if (vflag && icmp6len == ep - (u_char *)dp) {
- if (siz < 8)
- printf("?(icmp6_data %d bytes)", siz);
- else if (8 < siz)
- printf("?(extra %d bytes)", siz - 8);
+ case ND_OPT_TARGET_LINKADDR:
+ l = (op->nd_opt_len << 3) - 2;
+ print_lladdr(ndo, cp + 2, l);
+ break;
+ case ND_OPT_PREFIX_INFORMATION:
+ opp = (struct nd_opt_prefix_info *)op;
+ ND_TCHECK(opp->nd_opt_pi_prefix);
+ ND_PRINT((ndo,"%s/%u%s, Flags [%s], valid time %s",
+ ip6addr_string(ndo, &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))));
+ ND_PRINT((ndo,", pref. time %s", get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_preferred_time))));
+ break;
+ case ND_OPT_REDIRECTED_HEADER:
+ print_unknown_data(ndo, bp,"\n\t ",op->nd_opt_len<<3);
+ /* xxx */
+ break;
+ case ND_OPT_MTU:
+ opm = (struct nd_opt_mtu *)op;
+ ND_TCHECK(opm->nd_opt_mtu_mtu);
+ ND_PRINT((ndo," %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;
+ ND_PRINT((ndo," lifetime %us,",
+ EXTRACT_32BITS(&oprd->nd_opt_rdnss_lifetime)));
+ for (i = 0; i < l; i++) {
+ ND_TCHECK(oprd->nd_opt_rdnss_addr[i]);
+ ND_PRINT((ndo," addr: %s",
+ ip6addr_string(ndo, &oprd->nd_opt_rdnss_addr[i])));
+ }
+ break;
+ case ND_OPT_DNSSL:
+ opds = (struct nd_opt_dnssl *)op;
+ ND_PRINT((ndo," lifetime %us, domain(s):",
+ EXTRACT_32BITS(&opds->nd_opt_dnssl_lifetime)));
+ domp = cp + 8; /* domain names, variable-sized, RFC1035-encoded */
+ while (domp < cp + (op->nd_opt_len << 3) && *domp != '\0')
+ {
+ ND_PRINT((ndo, " "));
+ if ((domp = ns_nprint (ndo, domp, bp)) == NULL)
+ goto trunc;
+ }
+ break;
+ case ND_OPT_ADVINTERVAL:
+ opa = (struct nd_opt_advinterval *)op;
+ ND_TCHECK(opa->nd_opt_adv_interval);
+ ND_PRINT((ndo," %ums", EXTRACT_32BITS(&opa->nd_opt_adv_interval)));
+ break;
+ case ND_OPT_HOMEAGENT_INFO:
+ oph = (struct nd_opt_homeagent_info *)op;
+ ND_TCHECK(oph->nd_opt_hai_lifetime);
+ ND_PRINT((ndo," 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;
+ ND_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:
+ ND_TCHECK2(*in6p, 8);
+ memcpy(&in6, opri + 1, 8);
+ break;
+ case 3:
+ ND_TCHECK(*in6p);
+ memcpy(&in6, opri + 1, sizeof(in6));
+ break;
+ default:
+ goto trunc;
}
+ ND_PRINT((ndo," %s/%u", ip6addr_string(ndo, &in6),
+ opri->nd_opt_rti_prefixlen));
+ ND_PRINT((ndo,", pref=%s", get_rtpref(opri->nd_opt_rti_flags)));
+ ND_PRINT((ndo,", lifetime=%s",
+ get_lifetime(EXTRACT_32BITS(&opri->nd_opt_rti_lifetime))));
+ break;
+ default:
+ if (ndo->ndo_vflag <= 1) {
+ print_unknown_data(ndo,cp+2,"\n\t ", (op->nd_opt_len << 3) - 2); /* skip option header */
+ return;
+ }
+ break;
}
- break;
+ /* do we want to see an additional hexdump ? */
+ if (ndo->ndo_vflag> 1)
+ print_unknown_data(ndo, 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:
+ ND_PRINT((ndo, "[ndp opt]"));
+ return;
+#undef ECHECK
+}
+
+static void
+mld6_print(netdissect_options *ndo, const u_char *bp)
+{
+ const struct mld6_hdr *mp = (struct mld6_hdr *)bp;
+ const u_char *ep;
+
+ /* 'ep' points to the end of available data. */
+ ep = ndo->ndo_snapend;
+
+ if ((u_char *)mp + sizeof(*mp) > ep)
+ return;
+
+ ND_PRINT((ndo,"max resp delay: %d ", EXTRACT_16BITS(&mp->mld6_maxdelay)));
+ ND_PRINT((ndo,"addr: %s", ip6addr_string(ndo, &mp->mld6_addr)));
+}
+
+static void
+mldv2_report_print(netdissect_options *ndo, 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) {
+ ND_PRINT((ndo," [invalid len %d]", len));
+ return;
+ }
+
+ ND_TCHECK(icp->icmp6_data16[1]);
+ ngroups = EXTRACT_16BITS(&icp->icmp6_data16[1]);
+ ND_PRINT((ndo,", %d group record(s)", ngroups));
+ if (ndo->ndo_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) {
+ ND_PRINT((ndo," [invalid number of groups]"));
+ return;
}
-#endif /*ICMP6_WRUREQUEST*/
-#ifdef ICMP6_WRUREPLY
- case ICMP6_WRUREPLY: /*ICMP6_FQDN_REPLY*/
- {
- enum { UNKNOWN, WRU, FQDN } mode = UNKNOWN;
- const u_char *buf;
- const u_char *cp = NULL;
- const char *modename = NULL;
-
- buf = (u_char *)(dp + 1);
-
- /* fair guess */
- if (ep - buf > 12 && buf[12] == ep - buf - 13)
- mode = FQDN;
- else if (dp->icmp6_code == 1)
- mode = FQDN;
-
- /* wild guess */
- if (mode == UNKNOWN && ep - buf > 4) {
- cp = buf + 4;
- while (cp < ep) {
- if (!isprint(*cp++))
- mode = FQDN;
+ ND_TCHECK2(bp[group + 4], sizeof(struct in6_addr));
+ ND_PRINT((ndo," [gaddr %s", ip6addr_string(ndo, &bp[group + 4])));
+ ND_PRINT((ndo," %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))) {
+ ND_PRINT((ndo," [invalid number of sources %d]", nsrcs));
+ return;
+ }
+ if (ndo->ndo_vflag == 1)
+ ND_PRINT((ndo,", %d source(s)", nsrcs));
+ else {
+ /* Print the sources */
+ ND_PRINT((ndo," {"));
+ for (j = 0; j < nsrcs; j++) {
+ ND_TCHECK2(bp[group + 20 + j * sizeof(struct in6_addr)],
+ sizeof(struct in6_addr));
+ ND_PRINT((ndo," %s", ip6addr_string(ndo, &bp[group + 20 + j * sizeof(struct in6_addr)])));
+ }
+ ND_PRINT((ndo," }"));
+ }
+ /* Next group record */
+ group += 20 + nsrcs * sizeof(struct in6_addr);
+ ND_PRINT((ndo,"]"));
+ }
+ }
+ return;
+trunc:
+ ND_PRINT((ndo,"[|icmp6]"));
+ return;
+}
+
+static void
+mldv2_query_print(netdissect_options *ndo, 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) {
+ ND_PRINT((ndo," [invalid len %d]", len));
+ return;
+ }
+ ND_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 (ndo->ndo_vflag) {
+ ND_PRINT((ndo," [max resp delay=%d]", mrt));
+ }
+ ND_TCHECK2(bp[8], sizeof(struct in6_addr));
+ ND_PRINT((ndo," [gaddr %s", ip6addr_string(ndo, &bp[8])));
+
+ if (ndo->ndo_vflag) {
+ ND_TCHECK(bp[25]);
+ if (bp[24] & 0x08) {
+ ND_PRINT((ndo," sflag"));
+ }
+ if (bp[24] & 0x07) {
+ ND_PRINT((ndo," robustness=%d", bp[24] & 0x07));
+ }
+ if (bp[25] < 128) {
+ qqi = bp[25];
+ } else {
+ qqi = ((bp[25] & 0x0f) | 0x10) << (((bp[25] & 0x70) >> 4) + 3);
+ }
+ ND_PRINT((ndo," qqi=%d", qqi));
+ }
+
+ ND_TCHECK2(bp[26], 2);
+ nsrcs = EXTRACT_16BITS(&bp[26]);
+ if (nsrcs > 0) {
+ if (len < 28 + nsrcs * sizeof(struct in6_addr))
+ ND_PRINT((ndo," [invalid number of sources]"));
+ else if (ndo->ndo_vflag > 1) {
+ ND_PRINT((ndo," {"));
+ for (i = 0; i < nsrcs; i++) {
+ ND_TCHECK2(bp[28 + i * sizeof(struct in6_addr)],
+ sizeof(struct in6_addr));
+ ND_PRINT((ndo," %s", ip6addr_string(ndo, &bp[28 + i * sizeof(struct in6_addr)])));
+ }
+ ND_PRINT((ndo," }"));
+ } else
+ ND_PRINT((ndo,", %d source(s)", nsrcs));
+ }
+ ND_PRINT((ndo,"]"));
+ return;
+trunc:
+ ND_PRINT((ndo,"[|icmp6]"));
+ return;
+}
+
+static void
+dnsname_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
+{
+ int i;
+
+ /* DNS name decoding - no decompression */
+ ND_PRINT((ndo,", \""));
+ while (cp < ep) {
+ i = *cp++;
+ if (i) {
+ if (i > ep - cp) {
+ ND_PRINT((ndo,"???"));
+ break;
+ }
+ while (i-- && cp < ep) {
+ safeputchar(ndo, *cp);
+ cp++;
}
+ if (cp + 1 < ep && *cp)
+ ND_PRINT((ndo,"."));
+ } else {
+ if (cp == ep) {
+ /* FQDN */
+ ND_PRINT((ndo,"."));
+ } else if (cp + 1 == ep && *cp == '\0') {
+ /* truncated */
+ } else {
+ /* invalid */
+ ND_PRINT((ndo,"???"));
+ }
+ break;
}
-#ifndef abs
-#define abs(a) ((0 < (a)) ? (a) : -(a))
-#endif
- if (mode == UNKNOWN && ep - buf > 12 &&
- 2 < abs(buf[12] - (ep - buf - 13))) {
- mode = WRU;
+ }
+ ND_PRINT((ndo,"\""));
+}
+
+static void
+icmp6_nodeinfo_print(netdissect_options *ndo, u_int icmp6len, const u_char *bp, const u_char *ep)
+{
+ const struct icmp6_nodeinfo *ni6;
+ const 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 */
+ ND_PRINT((ndo," who-are-you request"));
+ break;
}
- if (mode == UNKNOWN)
- mode = FQDN;
+ ND_PRINT((ndo," node information query"));
- if (mode == WRU) {
- if (ep - buf > 12 && buf[12] == ep - buf - 13)
- cp = buf + 4;
- else
- cp = ep + 1; /*truncated*/
- modename = "icmp6: who-are-you reply";
- } else if (mode == FQDN) {
- cp = buf + 13;
- modename = "icmp6: FQDN reply";
+ ND_TCHECK2(*dp, sizeof(*ni6));
+ ni6 = (struct icmp6_nodeinfo *)dp;
+ ND_PRINT((ndo," (")); /*)*/
+ switch (EXTRACT_16BITS(&ni6->ni_qtype)) {
+ case NI_QTYPE_NOOP:
+ ND_PRINT((ndo,"noop"));
+ break;
+ case NI_QTYPE_SUPTYPES:
+ ND_PRINT((ndo,"supported qtypes"));
+ i = EXTRACT_16BITS(&ni6->ni_flags);
+ if (i)
+ ND_PRINT((ndo," [%s]", (i & 0x01) ? "C" : ""));
+ break;
+ case NI_QTYPE_FQDN:
+ ND_PRINT((ndo,"DNS name"));
+ break;
+ case NI_QTYPE_NODEADDR:
+ ND_PRINT((ndo,"node addresses"));
+ i = ni6->ni_flags;
+ if (!i)
+ break;
+ /* NI_NODEADDR_FLAG_TRUNCATE undefined for query */
+ ND_PRINT((ndo," [%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:
+ ND_PRINT((ndo,"unknown"));
+ break;
}
- if (icmp6len > ep - (u_char *)dp) {
- printf("[|%s]", modename);
+
+ if (ni6->ni_qtype == NI_QTYPE_NOOP ||
+ ni6->ni_qtype == NI_QTYPE_SUPTYPES) {
+ if (siz != sizeof(*ni6))
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", invalid len"));
+ /*(*/
+ ND_PRINT((ndo,")"));
break;
}
- printf("%s", modename);
- printf("(\""); /*)*/
- for (; cp < ep; cp++)
- printf((isprint(*cp) ? "%c" : "\\%03o"), *cp);
- printf("\"");
- if (vflag) {
- printf(",%s", mode == FQDN ? "FQDN" : "WRU");
- if (mode == FQDN) {
- long ttl;
- ttl = (long)ntohl(*(u_long *)&buf[8]);
- if (dp->icmp6_code == 1)
- printf(",TTL=unknown");
- else if (ttl < 0)
- printf(",TTL=%ld:invalid", ttl);
- else
- printf(",TTL=%ld", ttl);
- if (buf[12] != ep - buf - 13) {
- (void)printf(",invalid namelen:%d/%u",
- buf[12],
- (unsigned int)(ep - buf - 13));
+
+
+ /* XXX backward compat, icmp-name-lookup-03 */
+ if (siz == sizeof(*ni6)) {
+ ND_PRINT((ndo,", 03 draft"));
+ /*(*/
+ ND_PRINT((ndo,")"));
+ break;
+ }
+
+ switch (ni6->ni_code) {
+ case ICMP6_NI_SUBJ_IPV6:
+ if (!ND_TTEST2(*dp,
+ sizeof(*ni6) + sizeof(struct in6_addr)))
+ break;
+ if (siz != sizeof(*ni6) + sizeof(struct in6_addr)) {
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", invalid subject len"));
+ break;
+ }
+ ND_PRINT((ndo,", subject=%s",
+ getname6(ndo, (const u_char *)(ni6 + 1))));
+ break;
+ case ICMP6_NI_SUBJ_FQDN:
+ ND_PRINT((ndo,", subject=DNS name"));
+ cp = (const u_char *)(ni6 + 1);
+ if (cp[0] == ep - cp - 1) {
+ /* icmp-name-lookup-03, pascal string */
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", 03 draft"));
+ cp++;
+ ND_PRINT((ndo,", \""));
+ while (cp < ep) {
+ safeputchar(ndo, *cp);
+ cp++;
}
+ ND_PRINT((ndo,"\""));
+ } else
+ dnsname_print(ndo, cp, ep);
+ break;
+ case ICMP6_NI_SUBJ_IPV4:
+ if (!ND_TTEST2(*dp, sizeof(*ni6) + sizeof(struct in_addr)))
+ break;
+ if (siz != sizeof(*ni6) + sizeof(struct in_addr)) {
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", invalid subject len"));
+ break;
}
+ ND_PRINT((ndo,", subject=%s",
+ getname(ndo, (const u_char *)(ni6 + 1))));
+ break;
+ default:
+ ND_PRINT((ndo,", unknown subject"));
+ break;
}
+
/*(*/
- printf(")");
+ ND_PRINT((ndo,")"));
break;
- }
-#endif /*ICMP6_WRUREPLY*/
- default:
- printf("icmp6: type-#%d", dp->icmp6_type);
+
+ case ICMP6_NI_REPLY:
+ if (icmp6len > siz) {
+ ND_PRINT((ndo,"[|icmp6: node information reply]"));
+ break;
+ }
+
+ needcomma = 0;
+
+ ni6 = (struct icmp6_nodeinfo *)dp;
+ ND_PRINT((ndo," node information reply"));
+ ND_PRINT((ndo," (")); /*)*/
+ switch (ni6->ni_code) {
+ case ICMP6_NI_SUCCESS:
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo,"success"));
+ needcomma++;
+ }
+ break;
+ case ICMP6_NI_REFUSED:
+ ND_PRINT((ndo,"refused"));
+ needcomma++;
+ if (siz != sizeof(*ni6))
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", invalid length"));
+ break;
+ case ICMP6_NI_UNKNOWN:
+ ND_PRINT((ndo,"unknown"));
+ needcomma++;
+ if (siz != sizeof(*ni6))
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", invalid length"));
+ break;
+ }
+
+ if (ni6->ni_code != ICMP6_NI_SUCCESS) {
+ /*(*/
+ ND_PRINT((ndo,")"));
+ break;
+ }
+
+ switch (EXTRACT_16BITS(&ni6->ni_qtype)) {
+ case NI_QTYPE_NOOP:
+ if (needcomma)
+ ND_PRINT((ndo,", "));
+ ND_PRINT((ndo,"noop"));
+ if (siz != sizeof(*ni6))
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", invalid length"));
+ break;
+ case NI_QTYPE_SUPTYPES:
+ if (needcomma)
+ ND_PRINT((ndo,", "));
+ ND_PRINT((ndo,"supported qtypes"));
+ i = EXTRACT_16BITS(&ni6->ni_flags);
+ if (i)
+ ND_PRINT((ndo," [%s]", (i & 0x01) ? "C" : ""));
+ break;
+ case NI_QTYPE_FQDN:
+ if (needcomma)
+ ND_PRINT((ndo,", "));
+ ND_PRINT((ndo,"DNS name"));
+ cp = (const u_char *)(ni6 + 1) + 4;
+ if (cp[0] == ep - cp - 1) {
+ /* icmp-name-lookup-03, pascal string */
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo,", 03 draft"));
+ cp++;
+ ND_PRINT((ndo,", \""));
+ while (cp < ep) {
+ safeputchar(ndo, *cp);
+ cp++;
+ }
+ ND_PRINT((ndo,"\""));
+ } else
+ dnsname_print(ndo, cp, ep);
+ if ((EXTRACT_16BITS(&ni6->ni_flags) & 0x01) != 0)
+ ND_PRINT((ndo," [TTL=%u]", *(uint32_t *)(ni6 + 1)));
+ break;
+ case NI_QTYPE_NODEADDR:
+ if (needcomma)
+ ND_PRINT((ndo,", "));
+ ND_PRINT((ndo,"node addresses"));
+ i = sizeof(*ni6);
+ while (i < siz) {
+ if (i + sizeof(struct in6_addr) + sizeof(int32_t) > siz)
+ break;
+ ND_PRINT((ndo," %s", getname6(ndo, bp + i)));
+ i += sizeof(struct in6_addr);
+ ND_PRINT((ndo,"(%d)", (int32_t)EXTRACT_32BITS(bp + i)));
+ i += sizeof(int32_t);
+ }
+ i = ni6->ni_flags;
+ if (!i)
+ break;
+ ND_PRINT((ndo," [%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)
+ ND_PRINT((ndo,", "));
+ ND_PRINT((ndo,"unknown"));
+ break;
+ }
+
+ /*(*/
+ ND_PRINT((ndo,")"));
break;
}
return;
+
trunc:
- fputs("[|icmp6]", stdout);
-#if 0
-#undef TCHECK
-#endif
+ ND_PRINT((ndo, "[|icmp6]"));
}
-void
-icmp6_opt_print(register const u_char *bp, int resid)
+static void
+icmp6_rrenum_print(netdissect_options *ndo, const u_char *bp, const u_char *ep)
{
- register const struct nd_opt_hdr *op;
- register const struct nd_opt_hdr *opl; /* why there's no struct? */
- register const struct nd_opt_prefix_info *opp;
- register const struct icmp6_opts_redirect *opr;
- register const struct nd_opt_mtu *opm;
- register const u_char *ep;
- int opts_len;
-#if 0
- register const struct ip6_hdr *ip;
- register const char *str;
- register const struct ip6_hdr *oip;
- register const struct udphdr *ouh;
- register int hlen, dport;
- char buf[256];
-#endif
-
-#if 0
-#define TCHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) goto trunc
-#endif
-#define ECHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) return
-
- op = (struct nd_opt_hdr *)bp;
-#if 0
- ip = (struct ip6_hdr *)bp2;
- oip = &dp->icmp6_ip6;
- str = buf;
-#endif
- /* 'ep' points to the end of avaible data. */
- ep = snapend;
+ const struct icmp6_router_renum *rr6;
+ const char *cp;
+ struct rr_pco_match *match;
+ struct rr_pco_use *use;
+ char hbuf[NI_MAXHOST];
+ int n;
- ECHECK(op->nd_opt_len);
- if (resid <= 0)
+ if (ep < bp)
return;
- switch(op->nd_opt_type) {
- case ND_OPT_SOURCE_LINKADDR:
- opl = (struct nd_opt_hdr *)op;
-#if 1
- if ((u_char *)opl + (opl->nd_opt_len << 3) > ep)
- goto trunc;
-#else
- TCHECK((u_char *)opl + (opl->nd_opt_len << 3) - 1);
-#endif
- printf("(src lladdr: %s", /*)*/
- etheraddr_string((u_char *)(opl + 1)));
- if (opl->nd_opt_len != 1)
- printf("!");
- /*(*/
- printf(")");
- icmp6_opt_print((const u_char *)op + (op->nd_opt_len << 3),
- resid - (op->nd_opt_len << 3));
- break;
- case ND_OPT_TARGET_LINKADDR:
- opl = (struct nd_opt_hdr *)op;
-#if 1
- if ((u_char *)opl + (opl->nd_opt_len << 3) > ep)
- goto trunc;
-#else
- TCHECK((u_char *)opl + (opl->nd_opt_len << 3) - 1);
-#endif
- printf("(tgt lladdr: %s", /*)*/
- etheraddr_string((u_char *)(opl + 1)));
- if (opl->nd_opt_len != 1)
- printf("!");
- /*(*/
- printf(")");
- icmp6_opt_print((const u_char *)op + (op->nd_opt_len << 3),
- resid - (op->nd_opt_len << 3));
- break;
- case ND_OPT_PREFIX_INFORMATION:
- opp = (struct nd_opt_prefix_info *)op;
- TCHECK(opp->nd_opt_pi_prefix);
- printf("(prefix info: "); /*)*/
- if (opp->nd_opt_pi_flags_reserved & ND_OPT_PI_FLAG_ONLINK)
- printf("L");
- if (opp->nd_opt_pi_flags_reserved & ND_OPT_PI_FLAG_AUTO)
- printf("A");
- if (opp->nd_opt_pi_flags_reserved)
- printf(" ");
- printf("valid_ltime=");
- if ((u_int32_t)ntohl(opp->nd_opt_pi_valid_time) == ~0U)
- printf("infinity");
- else {
- printf("%u", (u_int32_t)ntohl(opp->nd_opt_pi_valid_time));
- }
- printf(", ");
- printf("preffered_ltime=");
- if ((u_int32_t)ntohl(opp->nd_opt_pi_preferred_time) == ~0U)
- printf("infinity");
- else {
- printf("%u", (u_int32_t)ntohl(opp->nd_opt_pi_preferred_time));
- }
- printf(", ");
- printf("prefix=%s/%d", ip6addr_string(&opp->nd_opt_pi_prefix),
- opp->nd_opt_pi_prefix_len);
- if (opp->nd_opt_pi_len != 4)
- printf("!");
- /*(*/
- printf(")");
- icmp6_opt_print((const u_char *)op + (op->nd_opt_len << 3),
- resid - (op->nd_opt_len << 3));
+ rr6 = (struct icmp6_router_renum *)bp;
+ cp = (const char *)(rr6 + 1);
+
+ ND_TCHECK(rr6->rr_reserved);
+ switch (rr6->rr_code) {
+ case ICMP6_ROUTER_RENUMBERING_COMMAND:
+ ND_PRINT((ndo,"router renum: command"));
break;
- case ND_OPT_REDIRECTED_HEADER:
- opr = (struct icmp6_opts_redirect *)op;
- printf("(redirect)");
- /* xxx */
- icmp6_opt_print((const u_char *)op + (op->nd_opt_len << 3),
- resid - (op->nd_opt_len << 3));
+ case ICMP6_ROUTER_RENUMBERING_RESULT:
+ ND_PRINT((ndo,"router renum: result"));
break;
- case ND_OPT_MTU:
- opm = (struct nd_opt_mtu *)op;
- TCHECK(opm->nd_opt_mtu_mtu);
- printf("(mtu: "); /*)*/
- printf("mtu=%u", (u_int32_t)ntohl(opm->nd_opt_mtu_mtu));
- if (opm->nd_opt_mtu_len != 1)
- printf("!");
- printf(")");
- icmp6_opt_print((const u_char *)op + (op->nd_opt_len << 3),
- resid - (op->nd_opt_len << 3));
+ case ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET:
+ ND_PRINT((ndo,"router renum: sequence number reset"));
break;
default:
- opts_len = op->nd_opt_len;
- printf("(unknwon opt_type=%d, opt_len=%d)",
- op->nd_opt_type, opts_len);
- if (opts_len == 0)
- opts_len = 1; /* XXX */
- icmp6_opt_print((const u_char *)op + (opts_len << 3),
- resid - (opts_len << 3));
+ ND_PRINT((ndo,"router renum: code-#%d", rr6->rr_code));
break;
}
- return;
- trunc:
- fputs("[ndp opt]", stdout);
- return;
-#if 0
-#undef TCHECK
-#endif
-#undef ECHECK
-}
-void
-mld6_print(register const u_char *bp)
-{
- register struct mld6_hdr *mp = (struct mld6_hdr *)bp;
- register const u_char *ep;
+ ND_PRINT((ndo,", seq=%u", EXTRACT_32BITS(&rr6->rr_seqnum)));
- /* 'ep' points to the end of avaible data. */
- ep = snapend;
+ if (ndo->ndo_vflag) {
+#define F(x, y) ((rr6->rr_flags) & (x) ? (y) : "")
+ ND_PRINT((ndo,"[")); /*]*/
+ if (rr6->rr_flags) {
+ ND_PRINT((ndo,"%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")));
+ }
+ ND_PRINT((ndo,"seg=%u,", rr6->rr_segnum));
+ ND_PRINT((ndo,"maxdelay=%u", EXTRACT_16BITS(&rr6->rr_maxdelay)));
+ if (rr6->rr_reserved)
+ ND_PRINT((ndo,"rsvd=0x%x", EXTRACT_32BITS(&rr6->rr_reserved)));
+ /*[*/
+ ND_PRINT((ndo,"]"));
+#undef F
+ }
- if ((u_char *)mp + sizeof(*mp) > ep)
- return;
+ if (rr6->rr_code == ICMP6_ROUTER_RENUMBERING_COMMAND) {
+ match = (struct rr_pco_match *)cp;
+ cp = (const char *)(match + 1);
+
+ ND_TCHECK(match->rpm_prefix);
+
+ if (ndo->ndo_vflag > 1)
+ ND_PRINT((ndo,"\n\t"));
+ else
+ ND_PRINT((ndo," "));
+ ND_PRINT((ndo,"match(")); /*)*/
+ switch (match->rpm_code) {
+ case RPM_PCO_ADD: ND_PRINT((ndo,"add")); break;
+ case RPM_PCO_CHANGE: ND_PRINT((ndo,"change")); break;
+ case RPM_PCO_SETGLOBAL: ND_PRINT((ndo,"setglobal")); break;
+ default: ND_PRINT((ndo,"#%u", match->rpm_code)); break;
+ }
- printf("max resp delay: %d ", ntohs(mp->mld6_maxdelay));
- printf("addr: %s", ip6addr_string(&mp->mld6_addr));
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo,",ord=%u", match->rpm_ordinal));
+ ND_PRINT((ndo,",min=%u", match->rpm_minlen));
+ ND_PRINT((ndo,",max=%u", match->rpm_maxlen));
+ }
+ if (inet_ntop(AF_INET6, &match->rpm_prefix, hbuf, sizeof(hbuf)))
+ ND_PRINT((ndo,",%s/%u", hbuf, match->rpm_matchlen));
+ else
+ ND_PRINT((ndo,",?/%u", match->rpm_matchlen));
+ /*(*/
+ ND_PRINT((ndo,")"));
+
+ 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);
+
+ ND_TCHECK(use->rpu_prefix);
+
+ if (ndo->ndo_vflag > 1)
+ ND_PRINT((ndo,"\n\t"));
+ else
+ ND_PRINT((ndo," "));
+ ND_PRINT((ndo,"use(")); /*)*/
+ if (use->rpu_flags) {
+#define F(x, y) ((use->rpu_flags) & (x) ? (y) : "")
+ ND_PRINT((ndo,"%s%s,",
+ F(ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME, "V"),
+ F(ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME, "P")));
+#undef F
+ }
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo,"mask=0x%x,", use->rpu_ramask));
+ ND_PRINT((ndo,"raflags=0x%x,", use->rpu_raflags));
+ if (~use->rpu_vltime == 0)
+ ND_PRINT((ndo,"vltime=infty,"));
+ else
+ ND_PRINT((ndo,"vltime=%u,",
+ EXTRACT_32BITS(&use->rpu_vltime)));
+ if (~use->rpu_pltime == 0)
+ ND_PRINT((ndo,"pltime=infty,"));
+ else
+ ND_PRINT((ndo,"pltime=%u,",
+ EXTRACT_32BITS(&use->rpu_pltime)));
+ }
+ if (inet_ntop(AF_INET6, &use->rpu_prefix, hbuf,
+ sizeof(hbuf)))
+ ND_PRINT((ndo,"%s/%u/%u", hbuf, use->rpu_uselen,
+ use->rpu_keeplen));
+ else
+ ND_PRINT((ndo,"?/%u/%u", use->rpu_uselen,
+ use->rpu_keeplen));
+ /*(*/
+ ND_PRINT((ndo,")"));
+ }
+ }
return;
+
+trunc:
+ ND_PRINT((ndo,"[|icmp6]"));
}
+
#endif /* INET6 */
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
projects / tcpdump / blobdiff