+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_D)));
+ return NULL;
+}
+
+static const u_char *
+ikev1_vid_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_VID)));
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ }
+ return (const u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_VID)));
+ return NULL;
+}
+
+/************************************************************/
+/* */
+/* IKE v2 - rfc4306 - dissector */
+/* */
+/************************************************************/
+
+static void
+ikev2_pay_print(netdissect_options *ndo, const char *payname, int critical)
+{
+ ND_PRINT((ndo,"%s%s:", payname, critical&0x80 ? "[C]" : ""));
+}
+
+static const u_char *
+ikev2_gen_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext)
+{
+ struct isakmp_gen e;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
+
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (const uint8_t *)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ }
+ return (const u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_t_print(netdissect_options *ndo, u_char tpay _U_, int pcount,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ const struct ikev2_t *p;
+ struct ikev2_t t;
+ uint16_t t_id;
+ const u_char *cp;
+ const char *idstr;
+ const struct attrmap *map;
+ size_t nmap;
+ const u_char *ep2;
+
+ p = (const struct ikev2_t *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&t, ext, sizeof(t));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), t.h.critical);
+
+ t_id = ntohs(t.t_id);
+
+ map = NULL;
+ nmap = 0;
+
+ switch (t.t_type) {
+ case IV2_T_ENCR:
+ idstr = STR_OR_ID(t_id, esp_p_map);
+ map = encr_t_map;
+ nmap = sizeof(encr_t_map)/sizeof(encr_t_map[0]);
+ break;
+
+ case IV2_T_PRF:
+ idstr = STR_OR_ID(t_id, prf_p_map);
+ break;
+
+ case IV2_T_INTEG:
+ idstr = STR_OR_ID(t_id, integ_p_map);
+ break;
+
+ case IV2_T_DH:
+ idstr = STR_OR_ID(t_id, dh_p_map);
+ break;
+
+ case IV2_T_ESN:
+ idstr = STR_OR_ID(t_id, esn_p_map);
+ break;
+
+ default:
+ idstr = NULL;
+ break;
+ }
+
+ if (idstr)
+ ND_PRINT((ndo," #%u type=%s id=%s ", pcount,
+ STR_OR_ID(t.t_type, ikev2_t_type_map),
+ idstr));
+ else
+ ND_PRINT((ndo," #%u type=%s id=%u ", pcount,
+ STR_OR_ID(t.t_type, ikev2_t_type_map),
+ t.t_id));
+ cp = (const u_char *)(p + 1);
+ ep2 = (const u_char *)p + item_len;
+ while (cp < ep && cp < ep2) {
+ if (map && nmap) {
+ cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2,
+ map, nmap);
+ } else
+ cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2);
+ }
+ if (ep < ep2)
+ ND_PRINT((ndo,"..."));
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep, uint32_t phase, uint32_t doi0,
+ uint32_t proto0 _U_, int depth)
+{
+ const struct ikev2_p *p;
+ struct ikev2_p prop;
+ const u_char *cp;
+
+ p = (const struct ikev2_p *)ext;
+ ND_TCHECK(*p);
+ UNALIGNED_MEMCPY(&prop, ext, sizeof(prop));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), prop.h.critical);
+
+ ND_PRINT((ndo," #%u protoid=%s transform=%d len=%u",
+ prop.p_no, PROTOIDSTR(prop.prot_id),
+ prop.num_t, ntohs(prop.h.len)));
+ if (prop.spi_size) {
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (const uint8_t *)(p + 1), prop.spi_size))
+ goto trunc;
+ }
+
+ ext = (const struct isakmp_gen *)((const u_char *)(p + 1) + prop.spi_size);
+ ND_TCHECK(*ext);
+
+ cp = ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
+ prop.prot_id, depth);
+
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_sa_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext1,
+ u_int item_len _U_, const u_char *ep _U_,
+ uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+ int osa_length, sa_length;
+
+ ND_TCHECK(*ext1);
+ UNALIGNED_MEMCPY(&e, ext1, sizeof(e));
+ ikev2_pay_print(ndo, "sa", e.critical);
+
+ osa_length= ntohs(e.len);
+ sa_length = osa_length - 4;
+ ND_PRINT((ndo," len=%d", sa_length));
+
+ ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_P,
+ ext1+1, ep,
+ 0, 0, 0, depth);
+
+ return (const u_char *)ext1 + osa_length;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_ke_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ struct ikev2_ke ke;
+ const struct ikev2_ke *k;
+
+ k = (const struct ikev2_ke *)ext;
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&ke, ext, sizeof(ke));
+ ikev2_pay_print(ndo, NPSTR(tpay), ke.h.critical);
+
+ ND_PRINT((ndo," len=%u group=%s", ntohs(ke.h.len) - 8,
+ STR_OR_ID(ntohs(ke.ke_group), dh_p_map)));
+
+ if (2 < ndo->ndo_vflag && 8 < ntohs(ke.h.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (const uint8_t *)(k + 1), ntohs(ke.h.len) - 8))
+ goto trunc;
+ }
+ return (const u_char *)ext + ntohs(ke.h.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_ID_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ struct ikev2_id id;
+ int id_len, idtype_len, i;
+ unsigned int dumpascii, dumphex;
+ const unsigned char *typedata;
+
+ ND_TCHECK(*ext);
+ UNALIGNED_MEMCPY(&id, ext, sizeof(id));
+ ikev2_pay_print(ndo, NPSTR(tpay), id.h.critical);
+
+ id_len = ntohs(id.h.len);
+
+ ND_PRINT((ndo," len=%d", id_len - 4));
+ if (2 < ndo->ndo_vflag && 4 < id_len) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (const uint8_t *)(ext + 1), id_len - 4))
+ goto trunc;
+ }
+
+ idtype_len =id_len - sizeof(struct ikev2_id);
+ dumpascii = 0;
+ dumphex = 0;
+ typedata = (const unsigned char *)(ext)+sizeof(struct ikev2_id);
+
+ switch(id.type) {
+ case ID_IPV4_ADDR:
+ ND_PRINT((ndo, " ipv4:"));
+ dumphex=1;
+ break;
+ case ID_FQDN:
+ ND_PRINT((ndo, " fqdn:"));
+ dumpascii=1;
+ break;
+ case ID_RFC822_ADDR:
+ ND_PRINT((ndo, " rfc822:"));
+ dumpascii=1;
+ break;
+ case ID_IPV6_ADDR:
+ ND_PRINT((ndo, " ipv6:"));
+ dumphex=1;
+ break;
+ case ID_DER_ASN1_DN:
+ ND_PRINT((ndo, " dn:"));
+ dumphex=1;
+ break;
+ case ID_DER_ASN1_GN:
+ ND_PRINT((ndo, " gn:"));
+ dumphex=1;
+ break;
+ case ID_KEY_ID:
+ ND_PRINT((ndo, " keyid:"));
+ dumphex=1;
+ break;
+ }
+
+ if(dumpascii) {
+ ND_TCHECK2(*typedata, idtype_len);
+ for(i=0; i<idtype_len; i++) {
+ if(ND_ISPRINT(typedata[i])) {
+ ND_PRINT((ndo, "%c", typedata[i]));
+ } else {
+ ND_PRINT((ndo, "."));
+ }
+ }
+ }
+ if(dumphex) {
+ if (!rawprint(ndo, (const uint8_t *)typedata, idtype_len))
+ goto trunc;
+ }
+
+ return (const u_char *)ext + id_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_cert_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_cr_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ uint32_t phase _U_, uint32_t doi _U_,
+ uint32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
projects / tcpdump / blobdiff