p+=l2info.header_len;
gh = (struct juniper_ggsn_header *)&l2info.cookie;
- ND_TCHECK_SIZE(gh);
- proto = GET_U_1(gh->proto);
+ /* use EXTRACT_, not GET_ (not packet buffer pointer) */
+ proto = EXTRACT_U_1(gh->proto);
if (ndo->ndo_eflag) {
ND_PRINT("proto %s (%u), vlan %u: ",
tok2str(juniper_protocol_values,"Unknown",proto),
proto,
- GET_BE_U_2(gh->vlan_id));
+ EXTRACT_BE_U_2(gh->vlan_id));
}
switch (proto) {
juniper_parse_header(netdissect_options *ndo,
const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info)
{
- const struct juniper_cookie_table_t *lp = juniper_cookie_table;
+ const struct juniper_cookie_table_t *lp;
u_int idx, extension_length, jnx_header_len = 0;
uint8_t tlv_type,tlv_len;
#ifdef DLT_JUNIPER_ATM2
/* sanity checks */
if (tlv_type == 0 || tlv_len == 0)
break;
- ND_LCHECK_U(extension_length, tlv_len + JUNIPER_EXT_TLV_OVERHEAD);
+ ND_ICHECK_U(extension_length, <,
+ tlv_len + JUNIPER_EXT_TLV_OVERHEAD);
if (ndo->ndo_vflag > 1)
ND_PRINT("\n\t %s Extension TLV #%u, length %u, value ",
l2info->length -= l2info->header_len;
l2info->caplen -= l2info->header_len;
- /* search through the cookie table and copy values matching for our PIC type */
- ND_TCHECK_1(p);
- while (lp->s != NULL) {
- if (lp->pictype == l2info->pictype) {
+ /* search through the cookie table for one matching our PIC type */
+ lp = NULL;
+ for (const struct juniper_cookie_table_t *table_lp = juniper_cookie_table;
+ table_lp->s != NULL; table_lp++) {
+ if (table_lp->pictype == l2info->pictype) {
+ lp = table_lp;
+ break;
+ }
+ }
- l2info->cookie_len += lp->cookie_len;
+ /* If we found one matching our PIC type, copy its values */
+ if (lp != NULL) {
+ l2info->cookie_len += lp->cookie_len;
- switch (GET_U_1(p)) {
- case LS_COOKIE_ID:
- l2info->cookie_type = LS_COOKIE_ID;
- l2info->cookie_len += 2;
- break;
- case AS_COOKIE_ID:
- l2info->cookie_type = AS_COOKIE_ID;
- l2info->cookie_len = 8;
- break;
+ switch (GET_U_1(p)) {
+ case LS_COOKIE_ID:
+ l2info->cookie_type = LS_COOKIE_ID;
+ l2info->cookie_len += 2;
+ break;
+ case AS_COOKIE_ID:
+ l2info->cookie_type = AS_COOKIE_ID;
+ l2info->cookie_len = 8;
+ break;
- default:
- l2info->bundle = l2info->cookie[0];
- break;
- }
+ default:
+ l2info->bundle = l2info->cookie[0];
+ break;
+ }
#ifdef DLT_JUNIPER_MFR
- /* MFR child links don't carry cookies */
- if (l2info->pictype == DLT_JUNIPER_MFR &&
- (GET_U_1(p) & MFR_BE_MASK) == MFR_BE_MASK) {
- l2info->cookie_len = 0;
- }
+ /* MFR child links don't carry cookies */
+ if (l2info->pictype == DLT_JUNIPER_MFR &&
+ (GET_U_1(p) & MFR_BE_MASK) == MFR_BE_MASK) {
+ l2info->cookie_len = 0;
+ }
#endif
- l2info->header_len += l2info->cookie_len;
- l2info->length -= l2info->cookie_len;
- l2info->caplen -= l2info->cookie_len;
+ l2info->header_len += l2info->cookie_len;
+ l2info->length -= l2info->cookie_len;
+ l2info->caplen -= l2info->cookie_len;
- if (ndo->ndo_eflag)
- ND_PRINT("%s-PIC, cookie-len %u",
- lp->s,
- l2info->cookie_len);
+ if (ndo->ndo_eflag)
+ ND_PRINT("%s-PIC, cookie-len %u",
+ lp->s,
+ l2info->cookie_len);
- if (l2info->cookie_len > 8) {
- nd_print_invalid(ndo);
- return 0;
- }
+ if (l2info->cookie_len > 8) {
+ nd_print_invalid(ndo);
+ return 0;
+ }
- if (l2info->cookie_len > 0) {
- ND_TCHECK_LEN(p, l2info->cookie_len);
- if (ndo->ndo_eflag)
- ND_PRINT(", cookie 0x");
- for (idx = 0; idx < l2info->cookie_len; idx++) {
- l2info->cookie[idx] = GET_U_1(p + idx); /* copy cookie data */
- if (ndo->ndo_eflag) ND_PRINT("%02x", GET_U_1(p + idx));
- }
+ if (l2info->cookie_len > 0) {
+ ND_TCHECK_LEN(p, l2info->cookie_len);
+ if (ndo->ndo_eflag)
+ ND_PRINT(", cookie 0x");
+ for (idx = 0; idx < l2info->cookie_len; idx++) {
+ l2info->cookie[idx] = GET_U_1(p + idx); /* copy cookie data */
+ if (ndo->ndo_eflag) ND_PRINT("%02x", GET_U_1(p + idx));
}
+ }
- if (ndo->ndo_eflag) ND_PRINT(": "); /* print demarc b/w L2/L3*/
+ if (ndo->ndo_eflag) ND_PRINT(": "); /* print demarc b/w L2/L3*/
- l2info->proto = GET_BE_U_2(p + l2info->cookie_len);
- break;
- }
- ++lp;
+ l2info->proto = GET_BE_U_2(p + l2info->cookie_len);
}
p+=l2info->cookie_len;
}
break;
#endif
+#ifdef DLT_JUNIPER_ES
+ case DLT_JUNIPER_ES:
+ break;
+#endif
#ifdef DLT_JUNIPER_GGSN
case DLT_JUNIPER_GGSN:
break;
#endif
+#ifdef DLT_JUNIPER_SERVICES
+ case DLT_JUNIPER_SERVICES:
+ break;
+#endif
#ifdef DLT_JUNIPER_ATM1
case DLT_JUNIPER_ATM1:
break;
case DLT_JUNIPER_FRELAY:
break;
#endif
+#ifdef DLT_JUNIPER_MONITOR
+ case DLT_JUNIPER_MONITOR:
+ break;
+#endif
+#ifdef DLT_JUNIPER_PPPOE
+ case DLT_JUNIPER_PPPOE:
+ break;
+#endif
+#ifdef DLT_JUNIPER_PPPOE_ATM
+ case DLT_JUNIPER_PPPOE_ATM:
+ break;
+#endif
default:
ND_PRINT("Unknown Juniper DLT_ type %u: ", l2info->pictype);