#ifndef lint
static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-lspping.c,v 1.7 2004-06-15 08:17:19 hannes Exp $";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-lspping.c,v 1.20 2008-01-28 14:20:43 hannes Exp $";
#endif
#ifdef HAVE_CONFIG_H
#include "interface.h"
#include "extract.h"
#include "addrtoname.h"
+
#include "bgp.h"
+#include "l2vpn.h"
+#include "oui.h"
/*
* LSPPING common header
};
#define LSPPING_VERSION 1
-#define FALSE 0
-#define TRUE 1
static const struct tok lspping_msg_type_values[] = {
{ 1, "MPLS Echo Request"},
#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
+#define LSPPING_TLV_VENDOR_ENTERPRISE 5
+#define LSPPING_TLV_VENDOR_ENTERPRISE_LEN 4
+#define LSPPING_TLV_INTERFACE_LABEL_STACK 7
+#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}
};
#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_L2VPN_VCID 9
-#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4 10
-#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6 11
+#define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD 9
+#define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID 10
+#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4 11
+#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6 12
static const struct tok lspping_tlvtargetfec_subtlv_values[] = {
{ LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4, "LDP IPv4 prefix"},
{ 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_L2VPN_VCID_OLD, "L2 circuit ID (old)"},
{ LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID, "L2 circuit ID"},
{ LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4, "BGP labeled IPv4 prefix"},
{ LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6, "BGP labeled IPv6 prefix"},
u_int8_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 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | VC ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encapsulation Type | Must Be Zero |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t {
+ u_int8_t remote_pe_address [4];
+ u_int8_t vc_id [4];
+ u_int8_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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
u_int8_t encapsulation[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
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | MTU | Address Type | Resvd (SBZ) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream IP Address (4 or 16 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream Interface Address (4 or 16 octets) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Hash Key Type | Depth Limit | Multipath Length |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * . .
+ * . (Multipath Information) .
+ * . .
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream Label | Protocol |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * . .
+ * . .
+ * . .
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Downstream Label | Protocol |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct lspping_tlv_downstream_map_ipv4_t {
+ u_int8_t mtu [2];
+ u_int8_t address_type;
+ u_int8_t res;
+ u_int8_t downstream_ip[4];
+ u_int8_t downstream_interface[4];
+};
+
+struct lspping_tlv_downstream_map_ipv6_t {
+ u_int8_t mtu [2];
+ u_int8_t address_type;
+ u_int8_t res;
+ u_int8_t downstream_ip[16];
+ u_int8_t downstream_interface[16];
+};
+
+struct lspping_tlv_downstream_map_info_t {
+ u_int8_t hash_key_type;
+ u_int8_t depth_limit;
+ u_int8_t multipath_length [2];
+};
+
+#define LSPPING_AFI_IPV4 1
+#define LSPPING_AFI_UNMB 2
+#define LSPPING_AFI_IPV6 3
+
+static const struct tok lspping_tlv_downstream_addr_values[] = {
+ { LSPPING_AFI_IPV4, "IPv4"},
+ { LSPPING_AFI_IPV6, "IPv6"},
+ { LSPPING_AFI_UNMB, "Unnumbered"},
+ { 0, NULL}
+};
+
void
lspping_print(register const u_char *pptr, register u_int len) {
int tlen,lspping_tlv_len,lspping_tlv_type,tlv_tlen;
int tlv_hexdump,subtlv_hexdump;
int lspping_subtlv_len,lspping_subtlv_type;
+ struct timeval timestamp;
+
+ union {
+ const struct lspping_tlv_downstream_map_ipv4_t *lspping_tlv_downstream_map_ipv4;
+ const struct lspping_tlv_downstream_map_ipv6_t *lspping_tlv_downstream_map_ipv6;
+ 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_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_l2vpn_vcid_old_t *lspping_tlv_targetfec_subtlv_l2vpn_vcid_old;
const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t *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;
tlen=len;
- printf("\n\tLSP-PINGv%u, msg-type: %s (%u), reply-mode: %s (%u)",
+ printf("\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 == 10 ||
lspping_com_header->return_code == 11 ||
lspping_com_header->return_code == 12 )
- printf("\n\t Return Code: %s %u (%u), Return Subcode: (%u)",
+ printf("\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
- printf("\n\t Return Code: %s (%u), Return Subcode: (%u)",
+ printf("\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);
- printf("\n\t Sender Handle: 0x%08x, Sequence: %u" \
- "\n\t Sender Timestamp %u.%us, Receiver Timestamp %u.%us",
+ printf("\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), /* FIXME: replace with ts_print() */
- EXTRACT_32BITS(lspping_com_header->ts_sent_usec),
- EXTRACT_32BITS(lspping_com_header->ts_rcvd_sec), /* FIXME: replace with ts_print() */
- 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);
+ printf("\n\t Sender Timestamp: ");
+ ts_print(×tamp);
+
+ timestamp.tv_sec=EXTRACT_32BITS(lspping_com_header->ts_rcvd_sec);
+ timestamp.tv_usec=EXTRACT_32BITS(lspping_com_header->ts_rcvd_usec);
+ printf("Receiver Timestamp: ");
+ if ((timestamp.tv_sec != 0) && (timestamp.tv_usec != 0))
+ ts_print(×tamp);
+ else
+ printf("no timestamp");
tptr+=sizeof(const struct lspping_common_header);
tlen-=sizeof(const struct lspping_common_header);
while(tlen>(int)sizeof(struct lspping_tlv_header)) {
+
/* did we capture enough for fully decoding the tlv header ? */
if (!TTEST2(*tptr, sizeof(struct lspping_tlv_header)))
goto trunc;
lspping_tlv_type=EXTRACT_16BITS(lspping_tlv_header->type);
lspping_tlv_len=EXTRACT_16BITS(lspping_tlv_header->length);
- if (lspping_tlv_len == 0)
+ /* some little sanity checking */
+ if (lspping_tlv_type == 0 || lspping_tlv_len == 0)
return;
- if(lspping_tlv_len % 4 || lspping_tlv_len < 4) { /* aligned to four octet boundary */
+ if(lspping_tlv_len < 4) {
printf("\n\t ERROR: TLV %u bogus size %u",lspping_tlv_type,lspping_tlv_len);
return;
}
bgp_vpn_rd_print(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->rd),
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->sender_ce_id),
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->receiver_ce_id),
- tok2str(bgp_l2vpn_encaps_values,
+ tok2str(l2vpn_encaps_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_L2VPN_VCID_OLD:
+ subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old = \
+ (const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t *)subtlv_tptr;
+ printf("\n\t Remote PE: %s" \
+ "\n\t VC-ID: 0x%08x, Encapsulation Type: %s (%u)",
+ ipaddr_string(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->remote_pe_address),
+ EXTRACT_32BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->vc_id),
+ tok2str(l2vpn_encaps_values,
+ "unknown",
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->encapsulation)),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->encapsulation));
+
+ break;
+
case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID:
subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid = \
(const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t *)subtlv_tptr;
ipaddr_string(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->sender_pe_address),
ipaddr_string(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->remote_pe_address),
EXTRACT_32BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->vc_id),
- tok2str(bgp_l2vpn_encaps_values, /* FIXME are the L2 encaps codepoints of BGP == LDP ??? */
+ tok2str(l2vpn_encaps_values,
"unknown",
- EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation)),
- EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation));
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->encapsulation)),
+ EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->encapsulation));
break;
}
break;
+ case LSPPING_TLV_DOWNSTREAM_MAPPING:
+ /* that strange thing with the downstream map TLV is that until now
+ * we do not know if its IPv4 or IPv6 , after we found the adress-type
+ * lets recast the tlv_tptr and move on */
+
+ tlv_ptr.lspping_tlv_downstream_map_ipv4= \
+ (const struct lspping_tlv_downstream_map_ipv4_t *)tlv_tptr;
+ tlv_ptr.lspping_tlv_downstream_map_ipv6= \
+ (const struct lspping_tlv_downstream_map_ipv6_t *)tlv_tptr;
+ printf("\n\t MTU: %u, Address-Type: %s (%u)",
+ EXTRACT_16BITS(tlv_ptr.lspping_tlv_downstream_map_ipv4->mtu),
+ tok2str(lspping_tlv_downstream_addr_values,
+ "unknown",
+ tlv_ptr.lspping_tlv_downstream_map_ipv4->address_type),
+ tlv_ptr.lspping_tlv_downstream_map_ipv4->address_type);
+
+ switch(tlv_ptr.lspping_tlv_downstream_map_ipv4->address_type) {
+
+ case LSPPING_AFI_IPV4:
+ printf("\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface IP: %s",
+ ipaddr_string(tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_ip),
+ ipaddr_string(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;
+#ifdef INET6
+ case LSPPING_AFI_IPV6:
+ printf("\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface IP: %s",
+ ip6addr_string(tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_ip),
+ ip6addr_string(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;
+#endif
+ case LSPPING_AFI_UNMB:
+ printf("\n\t Downstream IP: %s" \
+ "\n\t Downstream Interface Index: 0x%08x",
+ ipaddr_string(tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_ip),
+ EXTRACT_32BITS(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;
+
+ default:
+ /* should not happen ! - no error message - tok2str() has barked already */
+ break;
+ }
+
+ 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:
+ tptr += sizeof(struct lspping_tlv_header);
+ if (!TTEST2(*tptr, LSPPING_TLV_BFD_DISCRIMINATOR_LEN))
+ goto trunc;
+ printf("\n\t BFD Discriminator 0x%08x", EXTRACT_32BITS(tptr));
+ break;
+
+ case LSPPING_TLV_VENDOR_ENTERPRISE:
+ {
+ u_int32_t vendor_id;
+
+ if (!TTEST2(*tptr, LSPPING_TLV_VENDOR_ENTERPRISE_LEN))
+ goto trunc;
+ vendor_id = EXTRACT_32BITS(tlv_tptr);
+ printf("\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_DOWNSTREAM_MAPPING:
case LSPPING_TLV_PAD:
case LSPPING_TLV_ERROR_CODE:
case LSPPING_TLV_VENDOR_PRIVATE:
}
/* do we want to see an additionally tlv hexdump ? */
if (vflag > 1 || tlv_hexdump==TRUE)
- print_unknown_data(tptr+sizeof(sizeof(struct lspping_tlv_header)),"\n\t ",
+ print_unknown_data(tptr+sizeof(struct lspping_tlv_header),"\n\t ",
lspping_tlv_len);
- tptr+=lspping_tlv_len;
+
+ /* All TLVs are aligned to four octet boundary */
+ if (lspping_tlv_len % 4) {
+ lspping_tlv_len += (4 - lspping_tlv_len % 4);
+ }
+
+ tptr+=lspping_tlv_len+sizeof(struct lspping_tlv_header);
tlen-=lspping_tlv_len+sizeof(struct lspping_tlv_header);
}
return;
projects / tcpdump / blobdiff