+static struct tok icmp6_opt_ra_flag_values[] = {
+ { ND_RA_FLAG_MANAGED, "managed" },
+ { ND_RA_FLAG_OTHER, "other stateful"},
+ { ND_RA_FLAG_HOME_AGENT, "home agent"},
+ { 0, NULL }
+};
+
+static struct tok icmp6_nd_na_flag_values[] = {
+ { ND_NA_FLAG_ROUTER, "router" },
+ { ND_NA_FLAG_SOLICITED, "solicited" },
+ { ND_NA_FLAG_OVERRIDE, "override" },
+ { 0, NULL }
+};
+
+
+static struct tok icmp6_opt_values[] = {
+ { ND_OPT_SOURCE_LINKADDR, "source link-address"},
+ { ND_OPT_TARGET_LINKADDR, "destination link-address"},
+ { ND_OPT_PREFIX_INFORMATION, "prefix info"},
+ { ND_OPT_REDIRECTED_HEADER, "redirected header"},
+ { ND_OPT_MTU, "mtu"},
+ { ND_OPT_RDNSS, "rdnss"},
+ { ND_OPT_ADVINTERVAL, "advertisement interval"},
+ { ND_OPT_HOMEAGENT_INFO, "homeagent information"},
+ { ND_OPT_ROUTE_INFO, "route info"},
+ { 0, NULL }
+};
+
+/* mldv2 report types */
+static struct tok mldv2report2str[] = {
+ { 1, "is_in" },
+ { 2, "is_ex" },
+ { 3, "to_in" },
+ { 4, "to_ex" },
+ { 5, "allow" },
+ { 6, "block" },
+ { 0, NULL }
+};
+
+static const char *
+get_rtpref(u_int v)
+{
+ static const char *rtpref_str[] = {
+ "medium", /* 00 */
+ "high", /* 01 */
+ "rsv", /* 10 */
+ "low" /* 11 */
+ };
+
+ return rtpref_str[((v & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff];
+}
+
+static const char *
+get_lifetime(u_int32_t v)
+{
+ static char buf[20];
+
+ if (v == (u_int32_t)~0UL)
+ return "infinity";
+ else {
+ snprintf(buf, sizeof(buf), "%u", v);
+ return buf;
+ }
+}
+
+static void
+print_lladdr(const u_int8_t *p, size_t l)
+{
+ const u_int8_t *ep, *q;
+
+ q = p;
+ ep = p + l;
+ while (l > 0 && q < ep) {
+ if (q > p)
+ printf(":");
+ printf("%02x", *q++);
+ l--;
+ }
+}
+
+static int icmp6_cksum(const struct ip6_hdr *ip6, const struct icmp6_hdr *icp,
+ u_int len)
+{
+ size_t i;
+ register const u_int16_t *sp;
+ u_int32_t sum;
+ union {
+ struct {
+ struct in6_addr ph_src;
+ struct in6_addr ph_dst;
+ u_int32_t ph_len;
+ u_int8_t ph_zero[3];
+ u_int8_t ph_nxt;
+ } ph;
+ u_int16_t pa[20];
+ } phu;
+
+ /* pseudo-header */
+ memset(&phu, 0, sizeof(phu));
+ phu.ph.ph_src = ip6->ip6_src;
+ phu.ph.ph_dst = ip6->ip6_dst;
+ phu.ph.ph_len = htonl(len);
+ phu.ph.ph_nxt = IPPROTO_ICMPV6;
+
+ sum = 0;
+ for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++)
+ sum += phu.pa[i];
+
+ sp = (const u_int16_t *)icp;
+
+ for (i = 0; i < (len & ~1); i += 2)
+ sum += *sp++;
+
+ if (len & 1)
+ sum += htons((*(const u_int8_t *)sp) << 8);
+
+ while (sum > 0xffff)
+ sum = (sum & 0xffff) + (sum >> 16);
+ sum = ~sum & 0xffff;
+
+ return (sum);
+}
+
+enum ND_RPL_CODE {
+ ND_RPL_DAG_IS=0x01,
+ ND_RPL_DAG_IO=0x02,
+ ND_RPL_DAO =0x04
+};
+
+enum ND_RPL_DIO_FLAGS {
+ ND_RPL_DIO_GROUNDED = 0x80,
+ ND_RPL_DIO_DATRIG = 0x40,
+ ND_RPL_DIO_DASUPPORT= 0x20,
+ ND_RPL_DIO_RES4 = 0x10,
+ ND_RPL_DIO_RES3 = 0x08,
+ ND_RPL_DIO_PRF_MASK = 0x07, /* 3-bit preference */
+};
+
+struct nd_rpl_dio {
+ u_int8_t rpl_flags;
+ u_int8_t rpl_seq;
+ u_int8_t rpl_instanceid;
+ u_int8_t rpl_dagrank;
+ u_int8_t rpl_dagid[16];
+};
+
+static void
+rpl_print(netdissect_options *ndo,
+ const struct icmp6_hdr *hdr,
+ const u_char *bp, u_int length _U_)
+{
+ struct nd_rpl_dio *dio = (struct nd_rpl_dio *)bp;
+
+ ND_TCHECK(dio->rpl_dagid);
+
+ switch(hdr->icmp6_code) {
+ case ND_RPL_DAG_IS:
+ ND_PRINT((ndo, ", DAG Information Solicitation"));
+ if(ndo->ndo_vflag) {
+ }
+ break;
+ case ND_RPL_DAG_IO:
+ ND_PRINT((ndo, ", DAG Information Object"));
+ if(ndo->ndo_vflag) {
+ char dagid[65];
+ char *d = dagid;
+ int i;
+ for(i=0;i<16;i++) {
+ if(isprint(dio->rpl_dagid[i])) {
+ *d++ = dio->rpl_dagid[i];
+ } else {
+ int cnt=snprintf(d,4,"0x%02x",
+ dio->rpl_dagid[i]);
+ d += cnt;
+ }
+ }
+ *d++ = '\0';
+ ND_PRINT((ndo, " [seq:%u,instance:%u,rank:%u,dagid:%s]",
+ dio->rpl_seq,
+ dio->rpl_instanceid,
+ dio->rpl_dagrank,
+ dagid));
+ }
+ break;
+ case ND_RPL_DAO:
+ ND_PRINT((ndo, ", Destination Advertisement Object"));
+ if(ndo->ndo_vflag) {
+ }
+ break;
+ default:
+ ND_PRINT((ndo, ", RPL message, unknown code %u",hdr->icmp6_code));
+ break;
+ }
+ return;
+trunc:
+ ND_PRINT((ndo," [|truncated]"));
+ return;
+
+}
projects / tcpdump / blobdiff