* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
+/* \summary: IPv6 Internet Control Message Protocol (ICMPv6) printer */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#ifdef INET6
-
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
#include <stdio.h>
#include <string.h>
-#include "interface.h"
+#include "netdissect.h"
#include "addrtoname.h"
+#include "addrtostr.h"
#include "extract.h"
#include "ip6.h"
#include "udp.h"
#include "ah.h"
+static const char icmp6_tstr[] = " [|icmp6]";
+static const char rpl_tstr[] = " [|rpl]";
+static const char mldv2_tstr[] = " [|mldv2]";
+
/* 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 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];
+ nd_uint8_t nd_opt_pi_type;
+ nd_uint8_t nd_opt_pi_len;
+ nd_uint8_t nd_opt_pi_prefix_len;
+ nd_uint8_t nd_opt_pi_flags_reserved;
+ nd_uint32_t nd_opt_pi_valid_time;
+ nd_uint32_t nd_opt_pi_preferred_time;
+ nd_uint32_t nd_opt_pi_reserved2;
struct in6_addr nd_opt_pi_prefix;
};
}
}
-static int icmp6_cksum(const struct ip6_hdr *ip6, const struct icmp6_hdr *icp,
- u_int len)
+static int icmp6_cksum(netdissect_options *ndo, const struct ip6_hdr *ip6,
+ const struct icmp6_hdr *icp, u_int len)
{
- return nextproto6_cksum(ip6, (const uint8_t *)(const void *)icp, len, len,
+ return nextproto6_cksum(ndo, ip6, (const uint8_t *)(const void *)icp, len, len,
IPPROTO_ICMPV6);
}
-const struct tok rpl_mop_values[] = {
+static const struct tok rpl_mop_values[] = {
{ RPL_DIO_NONSTORING, "nonstoring"},
{ RPL_DIO_STORING, "storing"},
{ RPL_DIO_NONSTORING_MULTICAST, "nonstoring-multicast"},
{ 0, NULL},
};
-const struct tok rpl_subopt_values[] = {
+static const struct tok rpl_subopt_values[] = {
{ RPL_OPT_PAD0, "pad0"},
{ RPL_OPT_PADN, "padN"},
{ RPL_DIO_METRICS, "metrics"},
{ 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,
ND_PRINT((ndo, " opt:pad0"));
} else {
ND_PRINT((ndo, " opt:%s len:%u ",
- tok2str(rpl_subopt_values, "%subopt:%u", opt->rpl_dio_type),
+ tok2str(rpl_subopt_values, "subopt:%u", opt->rpl_dio_type),
optlen));
if(ndo->ndo_vflag > 2) {
unsigned int paylen = opt->rpl_dio_len;
}
opt = (const struct rpl_dio_genoption *)(((const char *)opt) + optlen);
length -= optlen;
+ ND_TCHECK(opt->rpl_dio_len);
}
return;
trunc:
- ND_PRINT((ndo," [|truncated]"));
+ ND_PRINT((ndo, "%s", rpl_tstr));
return;
}
const u_char *bp, u_int length)
{
const struct nd_rpl_dio *dio = (const struct nd_rpl_dio *)bp;
- char dagid_str[65];
+ const char *dagid_str;
ND_TCHECK(*dio);
- rpl_format_dagid(dagid_str, dio->rpl_dagid);
+ dagid_str = ip6addr_string (ndo, dio->rpl_dagid);
ND_PRINT((ndo, " [dagid:%s,seq:%u,instance:%u,rank:%u,%smop:%s,prf:%u]",
dagid_str,
}
return;
trunc:
- ND_PRINT((ndo," [|truncated]"));
+ ND_PRINT((ndo, "%s", rpl_tstr));
return;
}
const u_char *bp, u_int length)
{
const struct nd_rpl_dao *dao = (const struct nd_rpl_dao *)bp;
- char dagid_str[65];
+ const char *dagid_str = "<elided>";
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);
+ dagid_str = ip6addr_string (ndo, dao->rpl_dagid);
bp += DAGID_LEN;
length -= DAGID_LEN;
}
return;
trunc:
- ND_PRINT((ndo," [|truncated]"));
+ ND_PRINT((ndo, "%s", rpl_tstr));
return;
tooshort:
const u_char *bp, u_int length)
{
const struct nd_rpl_daoack *daoack = (const struct nd_rpl_daoack *)bp;
- char dagid_str[65];
+ const char *dagid_str = "<elided>";
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);
+ ND_TCHECK2(daoack->rpl_dagid, DAGID_LEN);
if (length < DAGID_LEN)
goto tooshort;
- rpl_format_dagid(dagid_str, daoack->rpl_dagid);
+ dagid_str = ip6addr_string (ndo, daoack->rpl_dagid);
bp += DAGID_LEN;
length -= DAGID_LEN;
}
return;
trunc:
- ND_PRINT((ndo," [|dao-truncated]"));
+ ND_PRINT((ndo, "%s", rpl_tstr));
return;
tooshort:
#if 0
trunc:
- ND_PRINT((ndo," [|truncated]"));
+ ND_PRINT((ndo, "%s", rpl_tstr));
return;
#endif
if (ND_TTEST2(bp[0], length)) {
udp_sum = EXTRACT_16BITS(&dp->icmp6_cksum);
- sum = icmp6_cksum(ip, dp, length);
+ sum = icmp6_cksum(ndo, ip, dp, length);
if (sum != 0)
ND_PRINT((ndo,"[bad icmp6 cksum 0x%04x -> 0x%04x!] ",
udp_sum,
case IPPROTO_TCP:
ND_PRINT((ndo,", %s tcp port %s",
ip6addr_string(ndo, &oip->ip6_dst),
- tcpport_string(dport)));
+ tcpport_string(ndo, dport)));
break;
case IPPROTO_UDP:
ND_PRINT((ndo,", %s udp port %s",
ip6addr_string(ndo, &oip->ip6_dst),
- udpport_string(dport)));
+ udpport_string(ndo, dport)));
break;
default:
ND_PRINT((ndo,", %s protocol %d port %d unreachable",
p = (const struct nd_router_advert *)dp;
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",
+ ", pref %s, router lifetime %us, reachable time %ums, retrans timer %ums",
(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),
case ND_REDIRECT:
#define RDR(i) ((const struct nd_redirect *)(i))
ND_TCHECK(RDR(dp)->nd_rd_dst);
- ND_PRINT((ndo,", %s", getname6(ndo, (const u_char *)&RDR(dp)->nd_rd_dst)));
+ ND_PRINT((ndo,", %s", ip6addr_string(ndo, &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)));
+ ip6addr_string(ndo, &RDR(dp)->nd_rd_target)));
#define REDIRECTLEN 40
if (ndo->ndo_vflag) {
icmp6_opt_print(ndo, (const u_char *)dp + REDIRECTLEN,
if (ndo->ndo_vflag) {
ND_TCHECK(dp->icmp6_data16[0]);
ND_PRINT((ndo,", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0])));
+ ND_TCHECK(dp->icmp6_data16[1]);
if (dp->icmp6_data16[1] & 0xc0)
ND_PRINT((ndo," "));
if (dp->icmp6_data16[1] & 0x80)
ND_PRINT((ndo,", length %u", length));
return;
trunc:
- ND_PRINT((ndo, "[|icmp6]"));
+ ND_PRINT((ndo, "%s", icmp6_tstr));
}
static const struct udphdr *
}
return;
- trunc:
- ND_PRINT((ndo, "[ndp opt]"));
+trunc:
+ ND_PRINT((ndo, "%s", icmp6_tstr));
return;
#undef ECHECK
}
}
return;
trunc:
- ND_PRINT((ndo,"[|icmp6]"));
+ ND_PRINT((ndo, "%s", mldv2_tstr));
return;
}
ND_PRINT((ndo,"]"));
return;
trunc:
- ND_PRINT((ndo,"[|icmp6]"));
+ ND_PRINT((ndo, "%s", mldv2_tstr));
return;
}
break;
}
ND_PRINT((ndo,", subject=%s",
- getname6(ndo, (const u_char *)(ni6 + 1))));
+ ip6addr_string(ndo, ni6 + 1)));
break;
case ICMP6_NI_SUBJ_FQDN:
ND_PRINT((ndo,", subject=DNS name"));
break;
}
ND_PRINT((ndo,", subject=%s",
- getname(ndo, (const u_char *)(ni6 + 1))));
+ ipaddr_string(ndo, ni6 + 1)));
break;
default:
ND_PRINT((ndo,", unknown subject"));
needcomma = 0;
+ ND_TCHECK2(*dp, sizeof(*ni6));
ni6 = (const struct icmp6_nodeinfo *)dp;
ND_PRINT((ndo," node information reply"));
ND_PRINT((ndo," (")); /*)*/
ND_PRINT((ndo,", "));
ND_PRINT((ndo,"DNS name"));
cp = (const u_char *)(ni6 + 1) + 4;
+ ND_TCHECK(cp[0]);
if (cp[0] == ep - cp - 1) {
/* icmp-name-lookup-03, pascal string */
if (ndo->ndo_vflag)
while (i < siz) {
if (i + sizeof(struct in6_addr) + sizeof(int32_t) > siz)
break;
- ND_PRINT((ndo," %s", getname6(ndo, bp + i)));
+ ND_PRINT((ndo," %s", ip6addr_string(ndo, bp + i)));
i += sizeof(struct in6_addr);
ND_PRINT((ndo,"(%d)", (int32_t)EXTRACT_32BITS(bp + i)));
i += sizeof(int32_t);
return;
trunc:
- ND_PRINT((ndo, "[|icmp6]"));
+ ND_PRINT((ndo, "%s", icmp6_tstr));
}
static void
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)))
+ if (addrtostr6(&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,"pltime=%u,",
EXTRACT_32BITS(&use->rpu_pltime)));
}
- if (inet_ntop(AF_INET6, &use->rpu_prefix, hbuf,
- sizeof(hbuf)))
+ if (addrtostr6(&use->rpu_prefix, hbuf, sizeof(hbuf)))
ND_PRINT((ndo,"%s/%u/%u", hbuf, use->rpu_uselen,
use->rpu_keeplen));
else
return;
trunc:
- ND_PRINT((ndo,"[|icmp6]"));
+ ND_PRINT((ndo, "%s", icmp6_tstr));
}
-#endif /* INET6 */
-
/*
* Local Variables:
* c-style: whitesmith
projects / tcpdump / blobdiff