* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
- * Original code by Hannes Gredler (hannes@juniper.net)
+ * Original code by Hannes Gredler (hannes@gredler.at)
*/
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-lspping.c,v 1.1 2004-06-06 19:20:03 hannes Exp $";
-#endif
+/* \summary: MPLS LSP PING printer */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <netdissect-stdinc.h>
-#include "interface.h"
+#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
+#include "l2vpn.h"
+#include "oui.h"
+
+/* RFC 4349 */
+
/*
* LSPPING common header
*
*/
struct lspping_common_header {
- u_int8_t version[2];
- u_int8_t reserved[2];
- u_int8_t msg_type;
- u_int8_t reply_mode;
- u_int8_t return_code;
- u_int8_t return_subcode;
- u_int8_t sender_handle[4];
- u_int8_t seq_number[4];
- u_int8_t ts_sent_sec[4];
- u_int8_t ts_sent_usec[4];
- u_int8_t ts_rcvd_sec[4];
- u_int8_t ts_rcvd_usec[4];
+ uint8_t version[2];
+ uint8_t global_flags[2];
+ uint8_t msg_type;
+ uint8_t reply_mode;
+ uint8_t return_code;
+ uint8_t return_subcode;
+ uint8_t sender_handle[4];
+ uint8_t seq_number[4];
+ uint8_t ts_sent_sec[4];
+ uint8_t ts_sent_usec[4];
+ uint8_t ts_rcvd_sec[4];
+ uint8_t ts_rcvd_usec[4];
};
#define LSPPING_VERSION 1
-#define FALSE 0
-#define TRUE 1
static const struct tok lspping_msg_type_values[] = {
{ 1, "MPLS Echo Request"},
{ 0, NULL}
};
-/*
+static const struct tok lspping_return_code_values[] = {
+ { 0, "No return code or return code contained in the Error Code TLV"},
+ { 1, "Malformed echo request received"},
+ { 2, "One or more of the TLVs was not understood"},
+ { 3, "Replying router is an egress for the FEC at stack depth"},
+ { 4, "Replying router has no mapping for the FEC at stack depth"},
+ { 5, "Reserved"},
+ { 6, "Reserved"},
+ { 7, "Reserved"},
+ { 8, "Label switched at stack-depth"},
+ { 9, "Label switched but no MPLS forwarding at stack-depth"},
+ { 10, "Mapping for this FEC is not the given label at stack depth"},
+ { 11, "No label entry at stack-depth"},
+ { 12, "Protocol not associated with interface at FEC stack depth"},
+ { 13, "Premature termination of ping due to label stack shrinking to a single label"},
+ { 0, NULL},
+};
+
+
+/*
* LSPPING TLV header
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
*/
struct lspping_tlv_header {
- u_int8_t type[2];
- u_int8_t length[2];
+ uint8_t type[2];
+ uint8_t length[2];
};
#define LSPPING_TLV_TARGET_FEC_STACK 1
#define LSPPING_TLV_DOWNSTREAM_MAPPING 2
#define LSPPING_TLV_PAD 3
-#define LSPPING_TLV_ERROR_CODE 4
-#define LSPPING_TLV_VENDOR_PRIVATE 5
+/* not assigned 4 */
+#define LSPPING_TLV_VENDOR_ENTERPRISE 5
+#define LSPPING_TLV_VENDOR_ENTERPRISE_LEN 4
+/* not assigned 6 */
+#define LSPPING_TLV_INTERFACE_LABEL_STACK 7
+/* not assigned 8 */
+#define LSPPING_TLV_ERROR_CODE 9
+#define LSPPING_TLV_REPLY_TOS_BYTE 10
+#define LSPPING_TLV_BFD_DISCRIMINATOR 15 /* draft-ietf-bfd-mpls-02 */
+#define LSPPING_TLV_BFD_DISCRIMINATOR_LEN 4
+#define LSPPING_TLV_VENDOR_PRIVATE 0xfc00
static const struct tok lspping_tlv_values[] = {
{ LSPPING_TLV_TARGET_FEC_STACK, "Target FEC Stack" },
{ LSPPING_TLV_DOWNSTREAM_MAPPING, "Downstream Mapping" },
{ LSPPING_TLV_PAD, "Pad" },
{ LSPPING_TLV_ERROR_CODE, "Error Code" },
- { LSPPING_TLV_VENDOR_PRIVATE, "Vendor Enterprise Code" },
+ { LSPPING_TLV_VENDOR_ENTERPRISE, "Vendor Enterprise Code" },
+ { LSPPING_TLV_INTERFACE_LABEL_STACK, "Interface Label Stack" },
+ { LSPPING_TLV_REPLY_TOS_BYTE, "Reply TOS Byte" },
+ { LSPPING_TLV_BFD_DISCRIMINATOR, "BFD Discriminator" },
+ { LSPPING_TLV_VENDOR_PRIVATE, "Vendor Private Code" },
{ 0, NULL}
};
-void
-lspping_print(register const u_char *pptr, register u_int len) {
+#define LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4 1
+#define LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6 2
+#define LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4 3
+#define LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6 4
+/* not assigned 5 */
+#define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4 6
+#define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6 7
+#define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT 8
+#define LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW_OLD 9
+#define LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW 10
+#define LSPPING_TLV_TARGETFEC_SUBTLV_FEC_129_PW 11
+#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4 12
+#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6 13
+#define LSPPING_TLV_TARGETFEC_SUBTLV_GENERIC_IPV4 14
+#define LSPPING_TLV_TARGETFEC_SUBTLV_GENERIC_IPV6 15
+#define LSPPING_TLV_TARGETFEC_SUBTLV_NIL_FEC 16
+
+static const struct tok lspping_tlvtargetfec_subtlv_values[] = {
+ { LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4, "LDP IPv4 prefix"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6, "LDP IPv6 prefix"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4, "RSVP IPv4 Session Query"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6, "RSVP IPv6 Session Query"},
+ { 5, "Reserved"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4, "VPN IPv4 prefix"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6, "VPN IPv6 prefix"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT, "L2 VPN endpoint"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW_OLD, "FEC 128 pseudowire (old)"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW, "FEC 128 pseudowire"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4, "BGP labeled IPv4 prefix"},
+ { LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6, "BGP labeled IPv6 prefix"},
+ { 0, NULL}
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv4 prefix |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Prefix Length | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t {
+ uint8_t prefix [4];
+ uint8_t prefix_len;
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv6 prefix |
+ * | (16 octets) |
+ * | |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Prefix Length | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t {
+ uint8_t prefix [16];
+ uint8_t prefix_len;
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv4 tunnel end point address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Must Be Zero | Tunnel ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Extended Tunnel ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv4 tunnel sender address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Must Be Zero | LSP ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t {
+ uint8_t tunnel_endpoint [4];
+ uint8_t res[2];
+ uint8_t tunnel_id[2];
+ uint8_t extended_tunnel_id[4];
+ uint8_t tunnel_sender [4];
+ uint8_t res2[2];
+ uint8_t lsp_id [2];
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv6 tunnel end point address |
+ * | |
+ * | |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Must Be Zero | Tunnel ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Extended Tunnel ID |
+ * | |
+ * | |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv6 tunnel sender address |
+ * | |
+ * | |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Must Be Zero | LSP ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t {
+ uint8_t tunnel_endpoint [16];
+ uint8_t res[2];
+ uint8_t tunnel_id[2];
+ uint8_t extended_tunnel_id[16];
+ uint8_t tunnel_sender [16];
+ uint8_t res2[2];
+ uint8_t lsp_id [2];
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Route Distinguisher |
+ * | (8 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv4 prefix |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Prefix Length | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t {
+ uint8_t rd [8];
+ uint8_t prefix [4];
+ uint8_t prefix_len;
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Route Distinguisher |
+ * | (8 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv6 prefix |
+ * | (16 octets) |
+ * | |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Prefix Length | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t {
+ uint8_t rd [8];
+ uint8_t prefix [16];
+ uint8_t prefix_len;
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Route Distinguisher |
+ * | (8 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Sender's VE ID | Receiver's VE ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encapsulation Type | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * 0 1 2 3
+ */
+struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t {
+ uint8_t rd [8];
+ uint8_t sender_ve_id [2];
+ uint8_t receiver_ve_id [2];
+ uint8_t encapsulation[2];
+};
+
+/*
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Remote PE Address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | PW ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | PW Type | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_fec_128_pw_old {
+ uint8_t remote_pe_address [4];
+ uint8_t pw_id [4];
+ uint8_t pw_type[2];
+};
+
+/*
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Sender's PE Address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Remote PE Address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | PW ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | PW Type | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_fec_128_pw {
+ uint8_t sender_pe_address [4];
+ uint8_t remote_pe_address [4];
+ uint8_t pw_id [4];
+ uint8_t pw_type[2];
+};
+/*
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv4 prefix |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Prefix Length | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t {
+ uint8_t prefix [4];
+ uint8_t prefix_len;
+};
+
+/*
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | IPv6 prefix |
+ * | (16 octets) |
+ * | |
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Prefix Length | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t {
+ uint8_t prefix [16];
+ uint8_t prefix_len;
+};
+
+/*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | MTU | Address Type | Resvd (SBZ) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream IP Address (4 or 16 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream Interface Address (4 or 16 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Multipath Type| Depth Limit | Multipath Length |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * . .
+ * . (Multipath Information) .
+ * . .
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream Label | Protocol |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * . .
+ * . .
+ * . .
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream Label | Protocol |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+/* Enough to get the address type */
+struct lspping_tlv_downstream_map_t {
+ uint8_t mtu [2];
+ uint8_t address_type;
+ uint8_t ds_flags;
+};
+
+struct lspping_tlv_downstream_map_ipv4_t {
+ uint8_t mtu [2];
+ uint8_t address_type;
+ uint8_t ds_flags;
+ uint8_t downstream_ip[4];
+ uint8_t downstream_interface[4];
+};
+
+struct lspping_tlv_downstream_map_ipv4_unmb_t {
+ uint8_t mtu [2];
+ uint8_t address_type;
+ uint8_t ds_flags;
+ uint8_t downstream_ip[4];
+ uint8_t downstream_interface[4];
+};
+
+struct lspping_tlv_downstream_map_ipv6_t {
+ uint8_t mtu [2];
+ uint8_t address_type;
+ uint8_t ds_flags;
+ uint8_t downstream_ip[16];
+ uint8_t downstream_interface[16];
+};
+
+struct lspping_tlv_downstream_map_ipv6_unmb_t {
+ uint8_t mtu [2];
+ uint8_t address_type;
+ uint8_t ds_flags;
+ uint8_t downstream_ip[16];
+ uint8_t downstream_interface[4];
+};
+
+struct lspping_tlv_downstream_map_info_t {
+ uint8_t multipath_type;
+ uint8_t depth_limit;
+ uint8_t multipath_length [2];
+};
+
+#define LSPPING_AFI_IPV4 1
+#define LSPPING_AFI_IPV4_UNMB 2
+#define LSPPING_AFI_IPV6 3
+#define LSPPING_AFI_IPV6_UNMB 4
+
+static const struct tok lspping_tlv_downstream_addr_values[] = {
+ { LSPPING_AFI_IPV4, "IPv4"},
+ { LSPPING_AFI_IPV4_UNMB, "Unnumbered IPv4"},
+ { LSPPING_AFI_IPV6, "IPv6"},
+ { LSPPING_AFI_IPV6_UNMB, "IPv6"},
+ { 0, NULL}
+};
+
+void
+lspping_print(netdissect_options *ndo,
+ register const u_char *pptr, register u_int len)
+{
const struct lspping_common_header *lspping_com_header;
const struct lspping_tlv_header *lspping_tlv_header;
- const u_char *tptr,*tlv_tptr;
- int tlen,lspping_tlv_len,lspping_tlv_type,tlv_tlen;
- int hexdump;
+ const struct lspping_tlv_header *lspping_subtlv_header;
+ const u_char *tptr,*tlv_tptr,*subtlv_tptr;
+ u_int tlen,lspping_tlv_len,lspping_tlv_type,tlv_tlen;
+ int tlv_hexdump,subtlv_hexdump;
+ u_int lspping_subtlv_len,lspping_subtlv_type;
+ struct timeval timestamp;
+
+ union {
+ const struct lspping_tlv_downstream_map_t *lspping_tlv_downstream_map;
+ const struct lspping_tlv_downstream_map_ipv4_t *lspping_tlv_downstream_map_ipv4;
+ const struct lspping_tlv_downstream_map_ipv4_unmb_t *lspping_tlv_downstream_map_ipv4_unmb;
+ const struct lspping_tlv_downstream_map_ipv6_t *lspping_tlv_downstream_map_ipv6;
+ const struct lspping_tlv_downstream_map_ipv6_unmb_t *lspping_tlv_downstream_map_ipv6_unmb;
+ const struct lspping_tlv_downstream_map_info_t *lspping_tlv_downstream_map_info;
+ } tlv_ptr;
+
+ union {
+ const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t *lspping_tlv_targetfec_subtlv_ldp_ipv4;
+ const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t *lspping_tlv_targetfec_subtlv_ldp_ipv6;
+ const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t *lspping_tlv_targetfec_subtlv_rsvp_ipv4;
+ const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t *lspping_tlv_targetfec_subtlv_rsvp_ipv6;
+ const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t *lspping_tlv_targetfec_subtlv_l3vpn_ipv4;
+ const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t *lspping_tlv_targetfec_subtlv_l3vpn_ipv6;
+ const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t *lspping_tlv_targetfec_subtlv_l2vpn_endpt;
+ const struct lspping_tlv_targetfec_subtlv_fec_128_pw_old *lspping_tlv_targetfec_subtlv_l2vpn_vcid_old;
+ const struct lspping_tlv_targetfec_subtlv_fec_128_pw *lspping_tlv_targetfec_subtlv_l2vpn_vcid;
+ const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t *lspping_tlv_targetfec_subtlv_bgp_ipv4;
+ const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t *lspping_tlv_targetfec_subtlv_bgp_ipv6;
+ } subtlv_ptr;
tptr=pptr;
lspping_com_header = (const struct lspping_common_header *)pptr;
- TCHECK(*lspping_com_header);
+ if (len < sizeof(const struct lspping_common_header))
+ goto tooshort;
+ ND_TCHECK(*lspping_com_header);
/*
* Sanity checking of the header.
*/
if (EXTRACT_16BITS(&lspping_com_header->version[0]) != LSPPING_VERSION) {
- printf("LSP-PING version %u packet not supported",
- EXTRACT_16BITS(&lspping_com_header->version[0]));
+ ND_PRINT((ndo, "LSP-PING version %u packet not supported",
+ EXTRACT_16BITS(&lspping_com_header->version[0])));
return;
}
/* in non-verbose mode just lets print the basic Message Type*/
- if (vflag < 1) {
- printf("LSP-PINGv%u, %s, seq %u, length: %u",
+ if (ndo->ndo_vflag < 1) {
+ ND_PRINT((ndo, "LSP-PINGv%u, %s, seq %u, length: %u",
EXTRACT_16BITS(&lspping_com_header->version[0]),
tok2str(lspping_msg_type_values, "unknown (%u)",lspping_com_header->msg_type),
EXTRACT_32BITS(lspping_com_header->seq_number),
- len);
+ len));
return;
}
tlen=len;
- printf("\n\tLSP-PINGv%u, msg-type: %s (%u), reply-mode: %s (%u)" \
- "\n\t Return Code: (%u), Return Subcode: (%u)" \
- "\n\t Sender Handle: 0x%08x, Sequence: %u" \
- "\n\t Sender Timestamp %u.%us, Receiver Timestamp %u.%us",
+ ND_PRINT((ndo, "\n\tLSP-PINGv%u, msg-type: %s (%u), length: %u\n\t reply-mode: %s (%u)",
EXTRACT_16BITS(&lspping_com_header->version[0]),
tok2str(lspping_msg_type_values, "unknown",lspping_com_header->msg_type),
lspping_com_header->msg_type,
+ len,
tok2str(lspping_reply_mode_values, "unknown",lspping_com_header->reply_mode),
- lspping_com_header->reply_mode,
- lspping_com_header->return_code,
- lspping_com_header->return_subcode,
+ lspping_com_header->reply_mode));
+
+ /*
+ * the following return codes require that the subcode is attached
+ * at the end of the translated token output
+ */
+ if (lspping_com_header->return_code == 3 ||
+ lspping_com_header->return_code == 4 ||
+ lspping_com_header->return_code == 8 ||
+ lspping_com_header->return_code == 10 ||
+ lspping_com_header->return_code == 11 ||
+ lspping_com_header->return_code == 12 )
+ ND_PRINT((ndo, "\n\t Return Code: %s %u (%u)\n\t Return Subcode: (%u)",
+ tok2str(lspping_return_code_values, "unknown",lspping_com_header->return_code),
+ lspping_com_header->return_subcode,
+ lspping_com_header->return_code,
+ lspping_com_header->return_subcode));
+ else
+ ND_PRINT((ndo, "\n\t Return Code: %s (%u)\n\t Return Subcode: (%u)",
+ tok2str(lspping_return_code_values, "unknown",lspping_com_header->return_code),
+ lspping_com_header->return_code,
+ lspping_com_header->return_subcode));
+
+ ND_PRINT((ndo, "\n\t Sender Handle: 0x%08x, Sequence: %u",
EXTRACT_32BITS(lspping_com_header->sender_handle),
- EXTRACT_32BITS(lspping_com_header->seq_number),
- EXTRACT_32BITS(lspping_com_header->ts_sent_sec),
- EXTRACT_32BITS(lspping_com_header->ts_sent_usec),
- EXTRACT_32BITS(lspping_com_header->ts_rcvd_sec),
- EXTRACT_32BITS(lspping_com_header->ts_rcvd_usec));
+ EXTRACT_32BITS(lspping_com_header->seq_number)));
+
+ timestamp.tv_sec=EXTRACT_32BITS(lspping_com_header->ts_sent_sec);
+ timestamp.tv_usec=EXTRACT_32BITS(lspping_com_header->ts_sent_usec);
+ ND_PRINT((ndo, "\n\t Sender Timestamp: "));
+ ts_print(ndo, ×tamp);
+
+ timestamp.tv_sec=EXTRACT_32BITS(lspping_com_header->ts_rcvd_sec);
+ timestamp.tv_usec=EXTRACT_32BITS(lspping_com_header->ts_rcvd_usec);
+ ND_PRINT((ndo, "Receiver Timestamp: "));
+ if ((timestamp.tv_sec != 0) && (timestamp.tv_usec != 0))
+ ts_print(ndo, ×tamp);
+ else
+ ND_PRINT((ndo, "no timestamp"));
tptr+=sizeof(const struct lspping_common_header);
tlen-=sizeof(const struct lspping_common_header);
- while(tlen>0) {
+ while (tlen != 0) {
+ /* Does the TLV go past the end of the packet? */
+ if (tlen < sizeof(struct lspping_tlv_header))
+ goto tooshort;
+
/* did we capture enough for fully decoding the tlv header ? */
- if (!TTEST2(*tptr, sizeof(struct lspping_tlv_header)))
- goto trunc;
+ ND_TCHECK2(*tptr, sizeof(struct lspping_tlv_header));
lspping_tlv_header = (const struct lspping_tlv_header *)tptr;
lspping_tlv_type=EXTRACT_16BITS(lspping_tlv_header->type);
lspping_tlv_len=EXTRACT_16BITS(lspping_tlv_header->length);
- if(lspping_tlv_len % 4 || lspping_tlv_len < 4)
- return;
-
- printf("\n\t %s TLV (%u), length: %u",
+ ND_PRINT((ndo, "\n\t %s TLV (%u), length: %u",
tok2str(lspping_tlv_values,
"Unknown",
lspping_tlv_type),
lspping_tlv_type,
- lspping_tlv_len);
+ lspping_tlv_len));
+
+ /* some little sanity checking */
+ if (lspping_tlv_len == 0) {
+ tptr+=sizeof(struct lspping_tlv_header);
+ tlen-=sizeof(struct lspping_tlv_header);
+ continue; /* no value to dissect */
+ }
tlv_tptr=tptr+sizeof(struct lspping_tlv_header);
- tlv_tlen=lspping_tlv_len-sizeof(struct lspping_tlv_header);
+ tlv_tlen=lspping_tlv_len; /* header not included -> no adjustment */
+ /* Does the TLV go past the end of the packet? */
+ if (tlen < lspping_tlv_len+sizeof(struct lspping_tlv_header))
+ goto tooshort;
/* did we capture enough for fully decoding the tlv ? */
- if (!TTEST2(*tptr, lspping_tlv_len))
- goto trunc;
- hexdump=FALSE;
+ ND_TCHECK2(*tlv_tptr, lspping_tlv_len);
+ tlv_hexdump=FALSE;
switch(lspping_tlv_type) {
+ case LSPPING_TLV_TARGET_FEC_STACK:
+ while (tlv_tlen != 0) {
+ /* Does the subTLV header go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_header)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* did we capture enough for fully decoding the subtlv header ? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_header));
+ subtlv_hexdump=FALSE;
- /*
- * FIXME those are the defined messages that lack a decoder
- * you are welcome to contribute code ;-)
- */
+ lspping_subtlv_header = (const struct lspping_tlv_header *)tlv_tptr;
+ lspping_subtlv_type=EXTRACT_16BITS(lspping_subtlv_header->type);
+ lspping_subtlv_len=EXTRACT_16BITS(lspping_subtlv_header->length);
+ subtlv_tptr=tlv_tptr+sizeof(struct lspping_tlv_header);
+
+ /* Does the subTLV go past the end of the TLV? */
+ if (tlv_tlen < lspping_subtlv_len+sizeof(struct lspping_tlv_header)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+
+ /* Did we capture enough for fully decoding the subTLV? */
+ ND_TCHECK2(*subtlv_tptr, lspping_subtlv_len);
+
+ ND_PRINT((ndo, "\n\t %s subTLV (%u), length: %u",
+ tok2str(lspping_tlvtargetfec_subtlv_values,
+ "Unknown",
+ lspping_subtlv_type),
+ lspping_subtlv_type,
+ lspping_subtlv_len));
+
+ switch(lspping_subtlv_type) {
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 5) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 5"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4 = \
+ (const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t %s/%u",
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4->prefix),
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4->prefix_len));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 17) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 17"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6 = \
+ (const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t %s/%u",
+ ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6->prefix),
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6->prefix_len));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 5) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 5"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4 = \
+ (const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t %s/%u",
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->prefix),
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->prefix_len));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 17) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 17"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6 = \
+ (const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t %s/%u",
+ ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->prefix),
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->prefix_len));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 20) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 20"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4 = \
+ (const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x" \
+ "\n\t tunnel-id 0x%04x, extended tunnel-id %s",
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_endpoint),
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_sender),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->lsp_id),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_id),
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->extended_tunnel_id)));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 56) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 56"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6 = \
+ (const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x" \
+ "\n\t tunnel-id 0x%04x, extended tunnel-id %s",
+ ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_endpoint),
+ ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_sender),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->lsp_id),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_id),
+ ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->extended_tunnel_id)));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 13) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 13"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4 = \
+ (const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t RD: %s, %s/%u",
+ bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->rd),
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->prefix),
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->prefix_len));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 25) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 25"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6 = \
+ (const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t RD: %s, %s/%u",
+ bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->rd),
+ ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->prefix),
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->prefix_len));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 14) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 14"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt = \
+ (const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t RD: %s, Sender VE ID: %u, Receiver VE ID: %u" \
+ "\n\t Encapsulation Type: %s (%u)",
+ bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->rd),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->sender_ve_id),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->receiver_ve_id),
+ tok2str(mpls_pw_types_values,
+ "unknown",
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation)),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation)));
+ }
+ break;
+
+ /* the old L2VPN VCID subTLV does not have support for the sender field */
+ case LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW_OLD:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 10) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 10"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old = \
+ (const struct lspping_tlv_targetfec_subtlv_fec_128_pw_old *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t Remote PE: %s" \
+ "\n\t PW ID: 0x%08x, PW Type: %s (%u)",
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->remote_pe_address),
+ EXTRACT_32BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->pw_id),
+ tok2str(mpls_pw_types_values,
+ "unknown",
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->pw_type)),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->pw_type)));
+ }
+ break;
+
+ case LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW:
+ /* Is the subTLV length correct? */
+ if (lspping_subtlv_len != 14) {
+ ND_PRINT((ndo, "\n\t invalid subTLV length, should be 14"));
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ } else {
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid = \
+ (const struct lspping_tlv_targetfec_subtlv_fec_128_pw *)subtlv_tptr;
+ ND_PRINT((ndo, "\n\t Sender PE: %s, Remote PE: %s" \
+ "\n\t PW ID: 0x%08x, PW Type: %s (%u)",
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->sender_pe_address),
+ ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->remote_pe_address),
+ EXTRACT_32BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->pw_id),
+ tok2str(mpls_pw_types_values,
+ "unknown",
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->pw_type)),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->pw_type)));
+ }
+ break;
+
+ default:
+ subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
+ break;
+ }
+ /* do we want to see an additionally subtlv hexdump ? */
+ if (ndo->ndo_vflag > 1 || subtlv_hexdump==TRUE)
+ print_unknown_data(ndo, tlv_tptr+sizeof(struct lspping_tlv_header), \
+ "\n\t ",
+ lspping_subtlv_len);
+
+ /* All subTLVs are aligned to four octet boundary */
+ if (lspping_subtlv_len % 4) {
+ lspping_subtlv_len += 4 - (lspping_subtlv_len % 4);
+ /* Does the subTLV, including padding, go past the end of the TLV? */
+ if (tlv_tlen < lspping_subtlv_len+sizeof(struct lspping_tlv_header)) {
+ ND_PRINT((ndo, "\n\t\t TLV is too short"));
+ return;
+ }
+ }
+ tlv_tptr+=lspping_subtlv_len;
+ tlv_tlen-=lspping_subtlv_len+sizeof(struct lspping_tlv_header);
+ }
+ break;
- case LSPPING_TLV_TARGET_FEC_STACK:
case LSPPING_TLV_DOWNSTREAM_MAPPING:
+ /* Does the header go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_t)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* Did we capture enough to get the address family? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_downstream_map_t));
+
+ tlv_ptr.lspping_tlv_downstream_map= \
+ (const struct lspping_tlv_downstream_map_t *)tlv_tptr;
+
+ /* that strange thing with the downstream map TLV is that until now
+ * we do not know if its IPv4 or IPv6 or is unnumbered; after
+ * we find the address-type, we recast the tlv_tptr and move on. */
+
+ ND_PRINT((ndo, "\n\t MTU: %u, Address-Type: %s (%u)",
+ EXTRACT_16BITS(tlv_ptr.lspping_tlv_downstream_map->mtu),
+ tok2str(lspping_tlv_downstream_addr_values,
+ "unknown",
+ tlv_ptr.lspping_tlv_downstream_map->address_type),
+ tlv_ptr.lspping_tlv_downstream_map->address_type));
+
+ switch(tlv_ptr.lspping_tlv_downstream_map->address_type) {
+
+ case LSPPING_AFI_IPV4:
+ /* Does the data go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv4_t)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* Did we capture enough for this part of the TLV? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_downstream_map_ipv4_t));
+
+ tlv_ptr.lspping_tlv_downstream_map_ipv4= \
+ (const struct lspping_tlv_downstream_map_ipv4_t *)tlv_tptr;
+ ND_PRINT((ndo, "\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface IP: %s",
+ ipaddr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_ip),
+ ipaddr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_interface)));
+ tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
+ tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
+ break;
+ case LSPPING_AFI_IPV4_UNMB:
+ /* Does the data go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* Did we capture enough for this part of the TLV? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t));
+
+ tlv_ptr.lspping_tlv_downstream_map_ipv4_unmb= \
+ (const struct lspping_tlv_downstream_map_ipv4_unmb_t *)tlv_tptr;
+ ND_PRINT((ndo, "\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface Index: 0x%08x",
+ ipaddr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv4_unmb->downstream_ip),
+ EXTRACT_32BITS(tlv_ptr.lspping_tlv_downstream_map_ipv4_unmb->downstream_interface)));
+ tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t);
+ tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t);
+ break;
+ case LSPPING_AFI_IPV6:
+ /* Does the data go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv6_t)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* Did we capture enough for this part of the TLV? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_downstream_map_ipv6_t));
+
+ tlv_ptr.lspping_tlv_downstream_map_ipv6= \
+ (const struct lspping_tlv_downstream_map_ipv6_t *)tlv_tptr;
+ ND_PRINT((ndo, "\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface IP: %s",
+ ip6addr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_ip),
+ ip6addr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_interface)));
+ tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv6_t);
+ tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv6_t);
+ break;
+ case LSPPING_AFI_IPV6_UNMB:
+ /* Does the data go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* Did we capture enough for this part of the TLV? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t));
+
+ tlv_ptr.lspping_tlv_downstream_map_ipv6_unmb= \
+ (const struct lspping_tlv_downstream_map_ipv6_unmb_t *)tlv_tptr;
+ ND_PRINT((ndo, "\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface Index: 0x%08x",
+ ip6addr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv6_unmb->downstream_ip),
+ EXTRACT_32BITS(tlv_ptr.lspping_tlv_downstream_map_ipv6_unmb->downstream_interface)));
+ tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t);
+ tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t);
+ break;
+
+ default:
+ /* should not happen ! - no error message - tok2str() has barked already */
+ break;
+ }
+
+ /* Does the data go past the end of the TLV? */
+ if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_info_t)) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ }
+ /* Did we capture enough for this part of the TLV? */
+ ND_TCHECK2(*tlv_tptr, sizeof(struct lspping_tlv_downstream_map_info_t));
+
+ tlv_ptr.lspping_tlv_downstream_map_info= \
+ (const struct lspping_tlv_downstream_map_info_t *)tlv_tptr;
+
+ /* FIXME add hash-key type, depth limit, multipath processing */
+
+ tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_info_t);
+ tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_info_t);
+
+ /* FIXME print downstream labels */
+
+ tlv_hexdump=TRUE; /* dump the TLV until code complete */
+
+ break;
+
+ case LSPPING_TLV_BFD_DISCRIMINATOR:
+ if (tlv_tlen < LSPPING_TLV_BFD_DISCRIMINATOR_LEN) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ } else {
+ ND_TCHECK2(*tptr, LSPPING_TLV_BFD_DISCRIMINATOR_LEN);
+ ND_PRINT((ndo, "\n\t BFD Discriminator 0x%08x", EXTRACT_32BITS(tptr)));
+ }
+ break;
+
+ case LSPPING_TLV_VENDOR_ENTERPRISE:
+ {
+ uint32_t vendor_id;
+
+ if (tlv_tlen < LSPPING_TLV_VENDOR_ENTERPRISE_LEN) {
+ ND_PRINT((ndo, "\n\t TLV is too short"));
+ tlv_hexdump = TRUE;
+ goto tlv_tooshort;
+ } else {
+ ND_TCHECK2(*tptr, LSPPING_TLV_VENDOR_ENTERPRISE_LEN);
+ vendor_id = EXTRACT_32BITS(tlv_tptr);
+ ND_PRINT((ndo, "\n\t Vendor: %s (0x%04x)",
+ tok2str(smi_values, "Unknown", vendor_id),
+ vendor_id));
+ }
+ }
+ break;
+
+ /*
+ * FIXME those are the defined TLVs that lack a decoder
+ * you are welcome to contribute code ;-)
+ */
case LSPPING_TLV_PAD:
case LSPPING_TLV_ERROR_CODE:
case LSPPING_TLV_VENDOR_PRIVATE:
-
+
default:
- if (vflag <= 1)
- print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen);
+ if (ndo->ndo_vflag <= 1)
+ print_unknown_data(ndo, tlv_tptr, "\n\t ", tlv_tlen);
break;
}
- /* do we want to see an additionally hexdump ? */
- if (vflag > 1 || hexdump==TRUE)
- print_unknown_data(tptr+sizeof(sizeof(struct lspping_tlv_header)),"\n\t ",
- lspping_tlv_len-sizeof(struct lspping_tlv_header));
+ /* do we want to see an additionally tlv hexdump ? */
+ tlv_tooshort:
+ if (ndo->ndo_vflag > 1 || tlv_hexdump==TRUE)
+ print_unknown_data(ndo, tptr+sizeof(struct lspping_tlv_header), "\n\t ",
+ lspping_tlv_len);
- tptr+=lspping_tlv_len;
- tlen-=lspping_tlv_len;
+
+ /* All TLVs are aligned to four octet boundary */
+ if (lspping_tlv_len % 4) {
+ lspping_tlv_len += (4 - lspping_tlv_len % 4);
+ /* Does the TLV, including padding, go past the end of the packet? */
+ if (tlen < lspping_tlv_len+sizeof(struct lspping_tlv_header))
+ goto tooshort;
+ }
+
+ tptr+=lspping_tlv_len+sizeof(struct lspping_tlv_header);
+ tlen-=lspping_tlv_len+sizeof(struct lspping_tlv_header);
}
return;
+tooshort:
+ ND_PRINT((ndo, "\n\t\t packet is too short"));
+ return;
trunc:
- printf("\n\t\t packet exceeded snapshot");
+ ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
+ return;
}
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
projects / tcpdump / blobdiff