/* \summary: IPv6 Internet Control Message Protocol (ICMPv6) printer */
-#ifdef HAVE_CONFIG_H
#include <config.h>
-#endif
#include "netdissect-stdinc.h"
#include "ip6.h"
#include "ipproto.h"
+#include "icmp.h"
#include "udp.h"
#include "ah.h"
-/* NetBSD: icmp6.h,v 1.13 2000/08/03 16:30:37 itojun Exp */
+/* 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 $ */
/*
#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 */
+#define icmp6_xseq icmp6_data8[2] /* extended echo request/reply */
+#define icmp6_xinfo icmp6_data8[3] /* extended echo request/reply */
#define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */
#define ICMP6_PACKET_TOO_BIG 2 /* packet too big */
#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_QUERY 130 /* multicast listener query */
#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 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 - RFC 4620 */
+#define ICMP6_NI_QUERY 139 /* node information query - RFC 4620 */
#define ICMP6_NI_REPLY 140 /* node information reply - RFC 4620 */
#define IND_SOLICIT 141 /* inverse neighbor solicitation */
#define IND_ADVERT 142 /* inverse neighbor advertisement */
#define ICMP6_HADISCOV_REPLY 145
#define ICMP6_MOBILEPREFIX_SOLICIT 146
#define ICMP6_MOBILEPREFIX_ADVERT 147
+#define ICMP6_EXTENDED_ECHO_REQUEST 160 /* extended echo request */
+#define ICMP6_EXTENDED_ECHO_REPLY 161 /* extended echo reply */
#define MLD6_MTRACE_RESP 200 /* mtrace response(to sender) */
#define MLD6_MTRACE 201 /* mtrace messages */
#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_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_HEADER 0 /* erroneous header field */
#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
+#define ICMP6_PARAMPROB_FRAGHDRCHAIN 3 /* incomplete header chain */
#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
*/
struct nd_router_solicit { /* router solicitation */
- struct icmp6_hdr nd_rs_hdr;
+ struct icmp6_hdr nd_rs_hdr;
/* could be followed by options */
};
#define ND_OPT_MTU 5
#define ND_OPT_ADVINTERVAL 7
#define ND_OPT_HOMEAGENT_INFO 8
+#define ND_OPT_NONCE 14
#define ND_OPT_ROUTE_INFO 24 /* RFC4191 */
#define ND_OPT_RDNSS 25
#define ND_OPT_DNSSL 31
+#define ND_OPT_PREF64_INFORMATION 38 /* RFC8781 */
struct nd_opt_prefix_info { /* prefix information */
nd_uint8_t nd_opt_pi_type;
/* prefix follows */
};
+struct nd_opt_pref64 { /* PREF64 option */
+ nd_uint8_t nd_opt_pref64_type;
+ nd_uint8_t nd_opt_pref64_len;
+ nd_uint16_t nd_opt_pref64_slplc; /* 13bit lft + 3bit PLC */
+ nd_uint32_t nd_opt_pref64_words[3]; /* highest 96 bits of prefix */
+};
+
/*
* icmp6 namelookup
*/
#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 (drafts up to 09) */
-#define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
-#define NI_QTYPE_DNSNAME 2 /* DNS Name */
+#define NI_QTYPE_NOOP 0 /* NOOP */
+#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes (Obsolete) */
+#define NI_QTYPE_NODENAME 2 /* Node 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))
+#define NI_NODEADDR_FLAG_TRUNCATE 0x0001
+#define NI_NODEADDR_FLAG_ALL 0x0002
+#define NI_NODEADDR_FLAG_COMPAT 0x0004
+#define NI_NODEADDR_FLAG_LINKLOCAL 0x0008
+#define NI_NODEADDR_FLAG_SITELOCAL 0x0010
+#define NI_NODEADDR_FLAG_GLOBAL 0x0020
+
+static const struct tok ni_nodeaddr_flag_values[] = {
+ { NI_NODEADDR_FLAG_TRUNCATE, "T" },
+ { NI_NODEADDR_FLAG_ALL, "A" },
+ { NI_NODEADDR_FLAG_COMPAT, "C" },
+ { NI_NODEADDR_FLAG_LINKLOCAL, "L" },
+ { NI_NODEADDR_FLAG_SITELOCAL, "S" },
+ { NI_NODEADDR_FLAG_GLOBAL, "G" },
+ { 0, NULL }
+};
-/* 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 */
+static const struct tok ni_ipv4addr_flag_values[] = {
+ { NI_NODEADDR_FLAG_TRUNCATE, "T" },
+ { NI_NODEADDR_FLAG_ALL, "A" },
+ { 0, NULL }
+};
struct ni_reply_fqdn {
nd_uint32_t ni_fqdn_ttl; /* TTL */
#define ICMP6_RR_FLAGS_SPECSITE 0x10
#define ICMP6_RR_FLAGS_PREVDONE 0x08
+static const struct tok router_renum_flag_values[] = {
+ { ICMP6_RR_FLAGS_TEST, "T" },
+ { ICMP6_RR_FLAGS_REQRESULT, "R" },
+ { ICMP6_RR_FLAGS_FORCEAPPLY, "A" },
+ { ICMP6_RR_FLAGS_SPECSITE, "S" },
+ { ICMP6_RR_FLAGS_PREVDONE, "P" },
+ { 0, NULL },
+};
+
#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]
+#define rr_seqnum rr_hdr.icmp6_data32[0]
struct rr_pco_match { /* match prefix part */
nd_uint8_t rpm_code;
static const char *get_rtpref(u_int);
static const char *get_lifetime(uint32_t);
+static const char *get_pref64_len_repr(uint16_t);
static void print_lladdr(netdissect_options *ndo, const u_char *, size_t);
static int icmp6_opt_print(netdissect_options *ndo, const u_char *, int);
static void mld6_print(netdissect_options *ndo, 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
-
/*
* DIO: Updated to RFC6550, as published in 2012: section 6. (page 30)
*/
#endif
};
-/* section 6.2.1, DODAG Information Solication (DIS_IS) */
+/* section 6.2.1, DODAG Information Solicitation (DIS_IS) */
struct nd_rpl_dis_is {
nd_uint8_t rpl_dis_flags;
nd_uint8_t rpl_dis_reserved;
{ 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"},
+ { ICMP6_EXTENDED_ECHO_REQUEST, "extended echo request"},
+ { ICMP6_EXTENDED_ECHO_REPLY, "extended echo reply"},
{ 0, NULL }
};
{ 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_DNSSL, "dnssl"},
{ ND_OPT_ADVINTERVAL, "advertisement interval"},
{ ND_OPT_HOMEAGENT_INFO, "homeagent information"},
+ { ND_OPT_NONCE, "nonce"},
{ ND_OPT_ROUTE_INFO, "route info"},
+ { ND_OPT_PREF64_INFORMATION, "pref64"},
{ 0, NULL }
};
if (v == (uint32_t)~0UL)
return "infinity";
else {
- nd_snprintf(buf, sizeof(buf), "%us", v);
+ snprintf(buf, sizeof(buf), "%us", v);
return buf;
}
}
+static const char *
+get_pref64_len_repr(uint16_t v)
+{
+ static const char *prefixlen_str[] = {
+ "96", "64", "56", "48", "40", "32"
+ };
+
+ v = v & 0x0007;
+ if (v < 6)
+ return prefixlen_str[v];
+ else
+ return "??";
+}
+
static void
print_lladdr(netdissect_options *ndo, const uint8_t *p, size_t l)
{
while (length != 0) {
opt = (const struct rpl_genoption *)opts;
- ND_TCHECK_1(opt->rpl_dio_type);
dio_type = GET_U_1(opt->rpl_dio_type);
if (dio_type == RPL_OPT_PAD1) {
optlen = 1;
ND_PRINT(" opt:pad1");
} else {
- if (length < RPL_GENOPTION_LEN)
- goto trunc;
+ if (length < RPL_GENOPTION_LEN)
+ goto trunc;
optlen = GET_U_1(opt->rpl_dio_len)+RPL_GENOPTION_LEN;
ND_PRINT(" opt:%s len:%u ",
tok2str(rpl_subopt_values, "subopt:%u", dio_type),
optlen);
ND_TCHECK_LEN(opt, optlen);
if (length < optlen)
- goto trunc;
+ goto trunc;
if (ndo->ndo_vflag > 2) {
hex_print(ndo,
" ",
return;
trunc:
nd_print_trunc(ndo);
- return;
}
static void
const u_char *bp, u_int length)
{
const struct nd_rpl_dio *dio = (const struct nd_rpl_dio *)bp;
- const char *dagid_str;
-
- ND_TCHECK_SIZE(dio);
- dagid_str = ip6addr_string (ndo, dio->rpl_dagid);
+ ND_ICHECK_ZU(length, <, sizeof(struct nd_rpl_dio));
ND_PRINT(" [dagid:%s,seq:%u,instance:%u,rank:%u,%smop:%s,prf:%u]",
- dagid_str,
+ GET_IP6ADDR_STRING(dio->rpl_dagid),
GET_U_1(dio->rpl_dtsn),
GET_U_1(dio->rpl_instanceid),
GET_BE_U_2(dio->rpl_dagrank),
RPL_DIO_GROUNDED(GET_U_1(dio->rpl_mopprf)) ? "grounded,":"",
- tok2str(rpl_mop_values, "mop%u", RPL_DIO_MOP(GET_U_1(dio->rpl_mopprf))),
+ tok2str(rpl_mop_values, "mop%u",
+ RPL_DIO_MOP(GET_U_1(dio->rpl_mopprf))),
RPL_DIO_PRF(GET_U_1(dio->rpl_mopprf)));
if(ndo->ndo_vflag > 1) {
rpl_printopts(ndo, bp + sizeof(struct nd_rpl_dio),
length - sizeof(struct nd_rpl_dio));
}
- return;
-trunc:
- nd_print_trunc(ndo);
- return;
+ return;
+invalid:
+ nd_print_invalid(ndo);
}
static void
const char *dagid_str = "<elided>";
uint8_t rpl_flags;
- ND_TCHECK_SIZE(dao);
- if (length < ND_RPL_DAO_MIN_LEN)
- goto tooshort;
+ ND_ICHECK_U(length, <, ND_RPL_DAO_MIN_LEN);
bp += ND_RPL_DAO_MIN_LEN;
length -= ND_RPL_DAO_MIN_LEN;
rpl_flags = GET_U_1(dao->rpl_flags);
if(RPL_DAO_D(rpl_flags)) {
- ND_TCHECK_LEN(dao->rpl_dagid, DAGID_LEN);
- if (length < DAGID_LEN)
- goto tooshort;
- dagid_str = ip6addr_string (ndo, dao->rpl_dagid);
+ ND_ICHECK_U(length, <, DAGID_LEN);
+ dagid_str = GET_IP6ADDR_STRING(dao->rpl_dagid);
bp += DAGID_LEN;
length -= DAGID_LEN;
}
- ND_PRINT(" [dagid:%s,seq:%u,instance:%u%s%s,%02x]",
+ ND_PRINT(" [dagid:%s,seq:%u,instance:%u%s%s,flags:%02x]",
dagid_str,
GET_U_1(dao->rpl_daoseq),
GET_U_1(dao->rpl_instanceid),
if(ndo->ndo_vflag > 1) {
rpl_printopts(ndo, bp, length);
}
- return;
-
-trunc:
- nd_print_trunc(ndo);
- return;
-
-tooshort:
- ND_PRINT(" [|length too short]");
- return;
+ return;
+invalid:
+ nd_print_invalid(ndo);
}
static void
const struct nd_rpl_daoack *daoack = (const struct nd_rpl_daoack *)bp;
const char *dagid_str = "<elided>";
- ND_TCHECK_LEN(daoack, ND_RPL_DAOACK_MIN_LEN);
- if (length < ND_RPL_DAOACK_MIN_LEN)
- goto tooshort;
+ ND_ICHECK_U(length, <, ND_RPL_DAOACK_MIN_LEN);
bp += ND_RPL_DAOACK_MIN_LEN;
length -= ND_RPL_DAOACK_MIN_LEN;
if(RPL_DAOACK_D(GET_U_1(daoack->rpl_flags))) {
- ND_TCHECK_LEN(daoack->rpl_dagid, DAGID_LEN);
- if (length < DAGID_LEN)
- goto tooshort;
- dagid_str = ip6addr_string (ndo, daoack->rpl_dagid);
+ ND_ICHECK_U(length, <, DAGID_LEN);
+ dagid_str = GET_IP6ADDR_STRING(daoack->rpl_dagid);
bp += DAGID_LEN;
length -= DAGID_LEN;
}
if(ndo->ndo_vflag > 1) {
rpl_printopts(ndo, bp, length);
}
- return;
-
-trunc:
- nd_print_trunc(ndo);
- return;
-
-tooshort:
- ND_PRINT(" [|dao-length too short]");
- return;
+ return;
+invalid:
+ nd_print_invalid(ndo);
}
static void
}
-
void
icmp6_print(netdissect_options *ndo,
const u_char *bp, u_int length, const u_char *bp2, int fragmented)
const struct ip6_hdr *ip;
const struct ip6_hdr *oip;
const struct udphdr *ouh;
- u_int dport;
+ uint16_t dport;
const u_char *ep;
u_int prot;
uint16_t sum, udp_sum;
if (ND_TTEST_LEN(bp, length)) {
- ND_TCHECK_2(dp->icmp6_cksum);
udp_sum = GET_BE_U_2(dp->icmp6_cksum);
sum = icmp6_cksum(ndo, ip, dp, length);
if (sum != 0)
}
}
- ND_TCHECK_1(dp->icmp6_type);
icmp6_type = GET_U_1(dp->icmp6_type);
ND_PRINT("ICMP6, %s", tok2str(icmp6_type_values,"unknown icmp6 type (%u)",icmp6_type));
icmp6_type == ICMP6_MOBILEPREFIX_ADVERT ))
ND_PRINT(", length %u", length);
- ND_TCHECK_1(dp->icmp6_code);
icmp6_code = GET_U_1(dp->icmp6_code);
switch (icmp6_type) {
case ICMP6_DST_UNREACH:
- ND_TCHECK_16(oip->ip6_dst);
ND_PRINT(", %s", tok2str(icmp6_dst_unreach_code_values,"unknown unreach code (%u)",icmp6_code));
switch (icmp6_code) {
case ICMP6_DST_UNREACH_NOROUTE: /* fall through */
case ICMP6_DST_UNREACH_ADMIN:
case ICMP6_DST_UNREACH_ADDR:
- ND_PRINT(" %s",ip6addr_string(ndo, oip->ip6_dst));
+ ND_PRINT(" %s",GET_IP6ADDR_STRING(oip->ip6_dst));
break;
case ICMP6_DST_UNREACH_BEYONDSCOPE:
ND_PRINT(" %s, source address %s",
- ip6addr_string(ndo, oip->ip6_dst),
- ip6addr_string(ndo, oip->ip6_src));
+ GET_IP6ADDR_STRING(oip->ip6_dst),
+ GET_IP6ADDR_STRING(oip->ip6_src));
break;
case ICMP6_DST_UNREACH_NOPORT:
if ((ouh = get_upperlayer(ndo, (const u_char *)oip, &prot))
switch (prot) {
case IPPROTO_TCP:
ND_PRINT(", %s tcp port %s",
- ip6addr_string(ndo, oip->ip6_dst),
+ GET_IP6ADDR_STRING(oip->ip6_dst),
tcpport_string(ndo, dport));
break;
case IPPROTO_UDP:
ND_PRINT(", %s udp port %s",
- ip6addr_string(ndo, oip->ip6_dst),
+ GET_IP6ADDR_STRING(oip->ip6_dst),
udpport_string(ndo, dport));
break;
default:
ND_PRINT(", %s protocol %u port %u unreachable",
- ip6addr_string(ndo, oip->ip6_dst),
+ GET_IP6ADDR_STRING(oip->ip6_dst),
prot, dport);
break;
}
}
break;
case ICMP6_PACKET_TOO_BIG:
- ND_TCHECK_4(dp->icmp6_mtu);
ND_PRINT(", mtu %u", GET_BE_U_4(dp->icmp6_mtu));
break;
case ICMP6_TIME_EXCEEDED:
- ND_TCHECK_16(oip->ip6_dst);
switch (icmp6_code) {
case ICMP6_TIME_EXCEED_TRANSIT:
ND_PRINT(" for %s",
- ip6addr_string(ndo, oip->ip6_dst));
+ GET_IP6ADDR_STRING(oip->ip6_dst));
break;
case ICMP6_TIME_EXCEED_REASSEMBLY:
ND_PRINT(" (reassembly)");
ND_PRINT(", option - octet %u",
GET_BE_U_4(dp->icmp6_pptr));
break;
+ case ICMP6_PARAMPROB_FRAGHDRCHAIN:
+ ND_PRINT(", incomplete header chain - octet %u",
+ GET_BE_U_4(dp->icmp6_pptr));
+ break;
default:
ND_PRINT(", code-#%u",
icmp6_code);
break;
case ICMP6_ECHO_REQUEST:
case ICMP6_ECHO_REPLY:
- /* The check below covers both icmp6_id and icmp6_seq. */
- ND_TCHECK_2(dp->icmp6_seq);
ND_PRINT(", id %u, seq %u", GET_BE_U_2(dp->icmp6_id),
GET_BE_U_2(dp->icmp6_seq));
break;
- case ICMP6_MEMBERSHIP_QUERY:
+ case MLD6_LISTENER_QUERY:
if (length == MLD_MINLEN) {
mld6_print(ndo, (const u_char *)dp);
} else if (length >= MLDV2_MINLEN) {
ND_PRINT(" unknown-version (len %u) ", length);
}
break;
- case ICMP6_MEMBERSHIP_REPORT:
+ case MLD6_LISTENER_REPORT:
mld6_print(ndo, (const u_char *)dp);
break;
- case ICMP6_MEMBERSHIP_REDUCTION:
+ case MLD6_LISTENER_DONE:
mld6_print(ndo, (const u_char *)dp);
break;
case ND_ROUTER_SOLICIT:
const struct nd_router_advert *p;
p = (const struct nd_router_advert *)dp;
- ND_TCHECK_4(p->nd_ra_retransmit);
ND_PRINT("\n\thop limit %u, Flags [%s]"
", pref %s, router lifetime %us, reachable time %ums, retrans timer %ums",
GET_U_1(p->nd_ra_curhoplimit),
{
const struct nd_neighbor_solicit *p;
p = (const struct nd_neighbor_solicit *)dp;
- ND_TCHECK_16(p->nd_ns_target);
- ND_PRINT(", who has %s", ip6addr_string(ndo, p->nd_ns_target));
+ ND_PRINT(", who has %s", GET_IP6ADDR_STRING(p->nd_ns_target));
if (ndo->ndo_vflag) {
#define NDSOLLEN 24
if (icmp6_opt_print(ndo, (const u_char *)dp + NDSOLLEN,
const struct nd_neighbor_advert *p;
p = (const struct nd_neighbor_advert *)dp;
- ND_TCHECK_16(p->nd_na_target);
ND_PRINT(", tgt is %s",
- ip6addr_string(ndo, p->nd_na_target));
+ GET_IP6ADDR_STRING(p->nd_na_target));
if (ndo->ndo_vflag) {
ND_PRINT(", Flags [%s]",
bittok2str(icmp6_nd_na_flag_values,
const struct nd_redirect *p;
p = (const struct nd_redirect *)dp;
- ND_TCHECK_16(p->nd_rd_dst);
- ND_PRINT(", %s", ip6addr_string(ndo, p->nd_rd_dst));
- ND_TCHECK_16(p->nd_rd_target);
- ND_PRINT(" to %s", ip6addr_string(ndo, p->nd_rd_target));
+ ND_PRINT(", %s", GET_IP6ADDR_STRING(p->nd_rd_dst));
+ ND_PRINT(" to %s", GET_IP6ADDR_STRING(p->nd_rd_target));
#define REDIRECTLEN 40
if (ndo->ndo_vflag) {
if (icmp6_opt_print(ndo, (const u_char *)dp + REDIRECTLEN,
break;
case ICMP6_MOBILEPREFIX_SOLICIT: /* fall through */
case ICMP6_HADISCOV_REQUEST:
- ND_TCHECK_2(dp->icmp6_data16[0]);
ND_PRINT(", id 0x%04x", GET_BE_U_2(dp->icmp6_data16[0]));
break;
case ICMP6_HADISCOV_REPLY:
const u_char *cp;
const u_char *p;
- ND_TCHECK_2(dp->icmp6_data16[0]);
ND_PRINT(", id 0x%04x",
GET_BE_U_2(dp->icmp6_data16[0]));
- cp = (const u_char *)dp + length;
+ cp = (const u_char *)dp +
+ ND_MIN(length, ND_BYTES_AVAILABLE_AFTER(dp));
p = (const u_char *)(dp + 1);
while (p < cp) {
- ND_TCHECK_16(p);
- ND_PRINT(", %s", ip6addr_string(ndo, p));
+ ND_PRINT(", %s", GET_IP6ADDR_STRING(p));
p += 16;
}
}
if (ndo->ndo_vflag) {
uint16_t flags;
- ND_TCHECK_2(dp->icmp6_data16[0]);
ND_PRINT(", id 0x%04x",
GET_BE_U_2(dp->icmp6_data16[0]));
- ND_TCHECK_2(dp->icmp6_data16[1]);
flags = GET_BE_U_2(dp->icmp6_data16[1]);
if (flags & 0xc000)
ND_PRINT(" ");
/* plus 4, because struct icmp6_hdr contains 4 bytes of icmp payload */
rpl_print(ndo, icmp6_code, dp->icmp6_data, length-sizeof(struct icmp6_hdr)+4);
break;
+ case ICMP6_EXTENDED_ECHO_REQUEST:
+ case ICMP6_EXTENDED_ECHO_REPLY:
+ ND_PRINT(", id %u, seq %u", GET_BE_U_2(dp->icmp6_id),
+ GET_U_1(dp->icmp6_xseq));
+ // The content of the message is the same as ICMP, so use the
+ // function defined in print-icmp.c
+ if (ndo->ndo_vflag) {
+ uint8_t xinfo = GET_U_1(dp->icmp6_xinfo);
+ print_icmp_rfc8335(ndo, xinfo, icmp6_type == ICMP6_EXTENDED_ECHO_REQUEST, icmp6_code, dp->icmp6_data + 4);
+ }
+ break;
default:
ND_PRINT(", length %u", length);
if (ndo->ndo_vflag <= 1)
if (ND_TTEST_2(uh->uh_dport)) {
*prot = nh;
return(uh);
- }
- else
+ } else
return(NULL);
/* NOTREACHED */
icmp6_opt_print(netdissect_options *ndo, const u_char *bp, int resid)
{
const struct nd_opt_hdr *op;
- uint8_t opt_type, opt_len;
+ uint8_t opt_type;
+ u_int opt_len;
const struct nd_opt_prefix_info *opp;
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 struct nd_opt_pref64 *op64;
const u_char *cp, *ep, *domp;
- struct in6_addr in6;
+ nd_ipv6 in6;
size_t l;
u_int i;
+ uint16_t w;
cp = bp;
/* 'ep' points to the end of available data. */
break;
case ND_OPT_PREFIX_INFORMATION:
opp = (const struct nd_opt_prefix_info *)op;
- ND_TCHECK_16(opp->nd_opt_pi_prefix);
ND_PRINT("%s/%u%s, Flags [%s], valid time %s",
- ip6addr_string(ndo, opp->nd_opt_pi_prefix),
+ GET_IP6ADDR_STRING(opp->nd_opt_pi_prefix),
GET_U_1(opp->nd_opt_pi_prefix_len),
(opt_len != 4) ? "badlen" : "",
bittok2str(icmp6_opt_pi_flag_values, "none", GET_U_1(opp->nd_opt_pi_flags_reserved)),
break;
case ND_OPT_MTU:
opm = (const struct nd_opt_mtu *)op;
- ND_TCHECK_4(opm->nd_opt_mtu_mtu);
ND_PRINT(" %u%s",
GET_BE_U_4(opm->nd_opt_mtu_mtu),
(opt_len != 1) ? "bad option length" : "" );
ND_PRINT(" lifetime %us,",
GET_BE_U_4(oprd->nd_opt_rdnss_lifetime));
for (i = 0; i < l; i++) {
- ND_TCHECK_16(oprd->nd_opt_rdnss_addr[i]);
ND_PRINT(" addr: %s",
- ip6addr_string(ndo, oprd->nd_opt_rdnss_addr[i]));
+ GET_IP6ADDR_STRING(oprd->nd_opt_rdnss_addr[i]));
}
break;
case ND_OPT_DNSSL:
ND_PRINT(" lifetime %us, domain(s):",
GET_BE_U_4(opds->nd_opt_dnssl_lifetime));
domp = cp + 8; /* domain names, variable-sized, RFC1035-encoded */
- while (domp < cp + (opt_len << 3) && GET_U_1(domp) != '\0')
- {
+ while (domp < cp + (opt_len << 3) && GET_U_1(domp) != '\0') {
ND_PRINT(" ");
if ((domp = fqdn_print(ndo, domp, bp)) == NULL)
goto trunc;
break;
case ND_OPT_ADVINTERVAL:
opa = (const struct nd_opt_advinterval *)op;
- ND_TCHECK_4(opa->nd_opt_adv_interval);
ND_PRINT(" %ums",
GET_BE_U_4(opa->nd_opt_adv_interval));
break;
case ND_OPT_HOMEAGENT_INFO:
oph = (const struct nd_opt_homeagent_info *)op;
- ND_TCHECK_2(oph->nd_opt_hai_lifetime);
ND_PRINT(" preference %u, lifetime %u",
GET_BE_U_2(oph->nd_opt_hai_preference),
GET_BE_U_2(oph->nd_opt_hai_lifetime));
break;
+ case ND_OPT_NONCE:
+ l = (opt_len << 3) - 2;
+ nd_print_bytes_hex(ndo, cp + 2, l);
+ break;
case ND_OPT_ROUTE_INFO:
opri = (const struct nd_opt_route_info *)op;
ND_TCHECK_4(opri->nd_opt_rti_lifetime);
case 1:
break;
case 2:
- ND_TCHECK_8(opri + 1);
- memcpy(&in6, opri + 1, 8);
+ GET_CPY_BYTES(&in6, opri + 1, 8);
break;
case 3:
- ND_TCHECK_16(opri + 1);
- memcpy(&in6, opri + 1, 16);
+ GET_CPY_BYTES(&in6, opri + 1, 16);
break;
default:
goto trunc;
}
- ND_PRINT(" %s/%u", ip6addr_string(ndo, (const u_char *)&in6),
+ ND_PRINT(" %s/%u", ip6addr_string(ndo, (const u_char *)&in6), /* local buffer, not packet data; don't use GET_IP6ADDR_STRING() */
GET_U_1(opri->nd_opt_rti_prefixlen));
ND_PRINT(", pref=%s",
get_rtpref(GET_U_1(opri->nd_opt_rti_flags)));
ND_PRINT(", lifetime=%s",
get_lifetime(GET_BE_U_4(opri->nd_opt_rti_lifetime)));
break;
+ case ND_OPT_PREF64_INFORMATION:
+ op64 = (const struct nd_opt_pref64 *)op;
+ if (opt_len != 2)
+ ND_PRINT("%s", "bad option length! ");
+ w = GET_BE_U_2(op64->nd_opt_pref64_slplc);
+ memset(&in6, 0, sizeof(in6));
+ GET_CPY_BYTES(&in6, op64->nd_opt_pref64_words,
+ sizeof(op64->nd_opt_pref64_words));
+ ND_PRINT("%s/%s (plc %u), lifetime %us",
+ ip6addr_string(ndo, (const u_char *)&in6),
+ get_pref64_len_repr(w),
+ w & 0x0007,
+ w & 0xfff8);
+ break;
default:
if (ndo->ndo_vflag <= 1) {
print_unknown_data(ndo,cp+2,"\n\t ", (opt_len << 3) - 2); /* skip option header */
return;
ND_PRINT("max resp delay: %u ", GET_BE_U_2(mp->mld6_maxdelay));
- ND_PRINT("addr: %s", ip6addr_string(ndo, mp->mld6_addr));
+ ND_PRINT("addr: %s", GET_IP6ADDR_STRING(mp->mld6_addr));
}
static void
return;
}
- ND_TCHECK_2(icp->icmp6_data16[1]);
ngroups = GET_BE_U_2(icp->icmp6_data16[1]);
ND_PRINT(", %u group record(s)", ngroups);
if (ndo->ndo_vflag > 0) {
ND_PRINT(" [invalid number of groups]");
return;
}
- ND_TCHECK_LEN(bp + 4 + group, sizeof(nd_ipv6));
- ND_PRINT(" [gaddr %s", ip6addr_string(ndo, bp + group + 4));
+ ND_PRINT(" [gaddr %s", GET_IP6ADDR_STRING(bp + group + 4));
ND_PRINT(" %s", tok2str(mldv2report2str, " [v2-report-#%u]",
GET_U_1(bp + group)));
nsrcs = GET_BE_U_2(bp + group + 2);
/* Print the sources */
ND_PRINT(" {");
for (j = 0; j < nsrcs; j++) {
- ND_TCHECK_LEN(bp + group + 20 + (j * sizeof(nd_ipv6)),
- sizeof(nd_ipv6));
- ND_PRINT(" %s", ip6addr_string(ndo, bp + group + 20 + (j * sizeof(nd_ipv6))));
+ ND_PRINT(" %s", GET_IP6ADDR_STRING(bp + group + 20 + (j * sizeof(nd_ipv6))));
}
ND_PRINT(" }");
}
ND_PRINT("]");
}
}
- return;
-trunc:
- nd_print_trunc(ndo);
- return;
}
static void
ND_PRINT(" [invalid len %u]", len);
return;
}
- ND_TCHECK_2(icp->icmp6_data16[0]);
mrc = GET_BE_U_2(icp->icmp6_data16[0]);
if (mrc < 32768) {
mrt = mrc;
if (ndo->ndo_vflag) {
ND_PRINT(" [max resp delay=%u]", mrt);
}
- ND_TCHECK_LEN(bp + 8, sizeof(nd_ipv6));
- ND_PRINT(" [gaddr %s", ip6addr_string(ndo, bp + 8));
+ ND_PRINT(" [gaddr %s", GET_IP6ADDR_STRING(bp + 8));
if (ndo->ndo_vflag) {
- ND_TCHECK_1(bp + 25);
if (GET_U_1(bp + 24) & 0x08) {
ND_PRINT(" sflag");
}
ND_PRINT(" qqi=%u", qqi);
}
- ND_TCHECK_2(bp + 26);
nsrcs = GET_BE_U_2(bp + 26);
if (nsrcs > 0) {
if (len < 28 + nsrcs * sizeof(nd_ipv6))
else if (ndo->ndo_vflag > 1) {
ND_PRINT(" {");
for (i = 0; i < nsrcs; i++) {
- ND_TCHECK_LEN(bp + 28 + (i * sizeof(nd_ipv6)),
- sizeof(nd_ipv6));
- ND_PRINT(" %s", ip6addr_string(ndo, bp + 28 + (i * sizeof(nd_ipv6))));
+ ND_PRINT(" %s", GET_IP6ADDR_STRING(bp + 28 + (i * sizeof(nd_ipv6))));
}
ND_PRINT(" }");
} else
ND_PRINT(", %u source(s)", nsrcs);
}
ND_PRINT("]");
- return;
-trunc:
- nd_print_trunc(ndo);
- return;
}
static void
const struct icmp6_hdr *dp;
const u_char *cp;
size_t siz, i;
+ uint16_t flags;
int needcomma;
if (ep < bp)
ND_PRINT(" who-are-you request");
break;
}
- ND_PRINT(" node information query");
ND_TCHECK_LEN(dp, sizeof(*ni6));
ni6 = (const struct icmp6_nodeinfo *)dp;
case NI_QTYPE_NOOP:
ND_PRINT("noop");
break;
- case NI_QTYPE_SUPTYPES:
- ND_PRINT("supported qtypes");
- i = GET_BE_U_2(ni6->ni_flags);
- if (i)
- ND_PRINT(" [%s]", (i & 0x01) ? "C" : "");
- break;
- case NI_QTYPE_FQDN:
- ND_PRINT("DNS name");
+ case NI_QTYPE_NODENAME:
+ ND_PRINT("node name");
break;
case NI_QTYPE_NODEADDR:
ND_PRINT("node addresses");
- i = GET_BE_U_2(ni6->ni_flags);
- if (!i)
- break;
- /* NI_NODEADDR_FLAG_TRUNCATE undefined for query */
- ND_PRINT(" [%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" : "");
+ flags = GET_BE_U_2(ni6->ni_flags);
+ if (flags)
+ ND_PRINT(" [%s]",
+ bittok2str_nosep(ni_nodeaddr_flag_values,
+ "none", flags));
+ if (flags & NI_NODEADDR_FLAG_TRUNCATE)
+ ND_PRINT(" [invalid flag Truncate present]");
+ break;
+ case NI_QTYPE_IPV4ADDR:
+ ND_PRINT("ipv4 addresses");
+ flags = GET_BE_U_2(ni6->ni_flags);
+ if (flags)
+ ND_PRINT(" [%s]",
+ bittok2str_nosep(ni_ipv4addr_flag_values,
+ "none", flags));
+ if (flags & NI_NODEADDR_FLAG_TRUNCATE)
+ ND_PRINT(" [invalid flag Truncate present]");
break;
default:
ND_PRINT("unknown");
break;
}
- if (GET_BE_U_2(ni6->ni_qtype) == NI_QTYPE_NOOP ||
- GET_BE_U_2(ni6->ni_qtype) == NI_QTYPE_SUPTYPES) {
+ if (GET_BE_U_2(ni6->ni_qtype) == NI_QTYPE_NOOP) {
if (siz != sizeof(*ni6))
if (ndo->ndo_vflag)
ND_PRINT(", invalid len");
break;
}
-
- /* XXX backward compat, icmp-name-lookup-03 */
- if (siz == sizeof(*ni6)) {
- ND_PRINT(", 03 draft");
- /*(*/
- ND_PRINT(")");
- break;
- }
-
cp = (const u_char *)(ni6 + 1);
switch (GET_U_1(ni6->ni_code)) {
case ICMP6_NI_SUBJ_IPV6:
break;
}
ND_PRINT(", subject=%s",
- ip6addr_string(ndo, cp));
+ GET_IP6ADDR_STRING(cp));
break;
case ICMP6_NI_SUBJ_FQDN:
ND_PRINT(", subject=DNS name");
- if (GET_U_1(cp) == ep - cp - 1) {
- /* icmp-name-lookup-03, pascal string */
- if (ndo->ndo_vflag)
- ND_PRINT(", 03 draft");
- cp++;
- ND_PRINT(", \"");
- while (cp < ep) {
- fn_print_char(ndo, GET_U_1(cp));
- cp++;
- }
- ND_PRINT("\"");
- } else
- dnsname_print(ndo, cp, ep);
+ dnsname_print(ndo, cp, ep);
break;
case ICMP6_NI_SUBJ_IPV4:
if (!ND_TTEST_LEN(dp, sizeof(*ni6) + sizeof(nd_ipv4)))
break;
}
ND_PRINT(", subject=%s",
- ipaddr_string(ndo, cp));
+ GET_IPADDR_STRING(cp));
break;
default:
ND_PRINT(", unknown subject");
ND_TCHECK_LEN(dp, sizeof(*ni6));
ni6 = (const struct icmp6_nodeinfo *)dp;
- ND_PRINT(" node information reply");
ND_PRINT(" ("); /*)*/
switch (GET_U_1(ni6->ni_code)) {
case ICMP6_NI_SUCCESS:
if (ndo->ndo_vflag)
ND_PRINT(", invalid length");
break;
- case NI_QTYPE_SUPTYPES:
+ case NI_QTYPE_NODENAME:
if (needcomma)
ND_PRINT(", ");
- ND_PRINT("supported qtypes");
- i = GET_BE_U_2(ni6->ni_flags);
- if (i)
- ND_PRINT(" [%s]", (i & 0x01) ? "C" : "");
- break;
- case NI_QTYPE_FQDN:
- if (needcomma)
- ND_PRINT(", ");
- ND_PRINT("DNS name");
+ ND_PRINT("node name");
cp = (const u_char *)(ni6 + 1) + 4;
- ND_TCHECK_1(cp);
- if (GET_U_1(cp) == ep - cp - 1) {
- /* icmp-name-lookup-03, pascal string */
- if (ndo->ndo_vflag)
- ND_PRINT(", 03 draft");
- cp++;
- ND_PRINT(", \"");
- while (cp < ep) {
- fn_print_char(ndo, GET_U_1(cp));
- cp++;
- }
- ND_PRINT("\"");
- } else
- dnsname_print(ndo, cp, ep);
+ dnsname_print(ndo, cp, ep);
if ((GET_BE_U_2(ni6->ni_flags) & 0x01) != 0)
ND_PRINT(" [TTL=%u]", GET_BE_U_4(ni6 + 1));
break;
if (needcomma)
ND_PRINT(", ");
ND_PRINT("node addresses");
+ flags = GET_BE_U_2(ni6->ni_flags);
+ if (flags)
+ ND_PRINT(" [%s]",
+ bittok2str_nosep(ni_nodeaddr_flag_values,
+ "none", flags));
i = sizeof(*ni6);
while (i < siz) {
if (i + sizeof(uint32_t) + sizeof(nd_ipv6) > siz)
break;
ND_PRINT(" %s(%u)",
- ip6addr_string(ndo, bp + i + sizeof(uint32_t)),
+ GET_IP6ADDR_STRING(bp + i + sizeof(uint32_t)),
GET_BE_U_4(bp + i));
i += sizeof(uint32_t) + sizeof(nd_ipv6);
}
- i = GET_BE_U_2(ni6->ni_flags);
- if (!i)
- break;
- ND_PRINT(" [%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;
+ case NI_QTYPE_IPV4ADDR:
+ if (needcomma)
+ ND_PRINT(", ");
+ ND_PRINT("ipv4 addresses");
+ flags = GET_BE_U_2(ni6->ni_flags);
+ if (flags)
+ ND_PRINT(" [%s]",
+ bittok2str_nosep(ni_nodeaddr_flag_values,
+ "none", flags));
+ cp = (const u_char *)(ni6 + 1);
+ while (cp < ep) {
+ uint32_t ttl;
+
+ ttl = GET_BE_U_4(cp);
+ cp += 4;
+ ND_PRINT(" %s(%u)", GET_IPADDR_STRING(cp), ttl);
+ cp += 4;
+ }
break;
default:
if (needcomma)
ND_TCHECK_4(rr6->rr_reserved);
switch (GET_U_1(rr6->rr_code)) {
case ICMP6_ROUTER_RENUMBERING_COMMAND:
- ND_PRINT("router renum: command");
+ ND_PRINT(", command");
break;
case ICMP6_ROUTER_RENUMBERING_RESULT:
- ND_PRINT("router renum: result");
+ ND_PRINT(", result");
break;
case ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET:
- ND_PRINT("router renum: sequence number reset");
+ ND_PRINT(", sequence number reset");
break;
default:
- ND_PRINT("router renum: code-#%u", GET_U_1(rr6->rr_code));
+ ND_PRINT(", code-#%u", GET_U_1(rr6->rr_code));
break;
}
if (ndo->ndo_vflag) {
uint8_t rr_flags = GET_U_1(rr6->rr_flags);
-#define F(x, y) (rr_flags & (x) ? (y) : "")
ND_PRINT("["); /*]*/
if (rr_flags) {
- ND_PRINT("%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("%s,",
+ bittok2str_nosep(router_renum_flag_values,
+ "none", rr_flags));
}
ND_PRINT("seg=%u,", GET_U_1(rr6->rr_segnum));
ND_PRINT("maxdelay=%u", GET_BE_U_2(rr6->rr_maxdelay));
ND_PRINT("rsvd=0x%x", GET_BE_U_4(rr6->rr_reserved));
/*[*/
ND_PRINT("]");
-#undef F
}
if (GET_U_1(rr6->rr_code) == ICMP6_ROUTER_RENUMBERING_COMMAND) {
projects / tcpdump / blobdiff