#ifndef lint
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-ldp.c,v 1.1 2002-12-13 00:40:35 hannes Exp $";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-ldp.c,v 1.2 2002-12-13 14:29:24 hannes Exp $";
#endif
#ifdef HAVE_CONFIG_H
#include "interface.h"
#include "extract.h"
#include "addrtoname.h"
-#include "ethertype.h"
/*
* ldp common header
#define LDP_VERSION 1
+/*
+ * ldp message 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
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |U| Message Type | Message Length |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Message ID |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | |
+ * + +
+ * | Mandatory Parameters |
+ * + +
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | |
+ * + +
+ * | Optional Parameters |
+ * + +
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+struct ldp_msg_header {
+ u_int8_t type[2];
+ u_int8_t length[2];
+ u_int8_t id[4];
+};
+
+#define LDP_MASK_MSG_TYPE(x) ((x)&0x7fff)
+#define LDP_MASK_U_BIT(x) ((x)&0x8000)
+
+#define LDP_MSG_NOTIF 0x0001
+#define LDP_MSG_HELLO 0x0100
+#define LDP_MSG_INIT 0x0200
+#define LDP_MSG_KEEPALIVE 0x0201
+#define LDP_MSG_ADDRESS 0x0300
+#define LDP_MSG_ADDRESS_WITHDRAW 0x0301
+#define LDP_MSG_LABEL_MAPPING 0x0400
+#define LDP_MSG_LABEL_REQUEST 0x0401
+#define LDP_MSG_LABEL_WITHDRAW 0x0402
+#define LDP_MSG_LABEL_RELEASE 0x0403
+#define LDP_MSG_LABEL_ABORT_REQUEST 0x0404
+
+#define LDP_VENDOR_PRIVATE_MIN 0x3e00
+#define LDP_VENDOR_PRIVATE_MAX 0x3eff
+#define LDP_EXPERIMENTAL_MIN 0x3f00
+#define LDP_EXPERIMENTAL_MAX 0x3fff
+
+static const struct tok ldp_msg_values[] = {
+ { LDP_MSG_NOTIF, "Notification" },
+ { LDP_MSG_HELLO, "Hello" },
+ { LDP_MSG_INIT, "Initialization" },
+ { LDP_MSG_KEEPALIVE, "Keepalive" },
+ { LDP_MSG_ADDRESS, "Address" },
+ { LDP_MSG_ADDRESS_WITHDRAW, "Address Widthdraw" },
+ { LDP_MSG_LABEL_MAPPING, "Label Mapping" },
+ { LDP_MSG_LABEL_REQUEST, "Label Request" },
+ { LDP_MSG_LABEL_WITHDRAW, "Label Withdraw" },
+ { LDP_MSG_LABEL_RELEASE, "Label Release" },
+ { LDP_MSG_LABEL_ABORT_REQUEST, "Label Abort Request" },
+ { 0, NULL}
+};
+
/*
* ldp tlv header
*
};
#define LDP_MASK_TLV_TYPE(x) ((x)&0x3fff)
-#define LDP_MASK_TLV_U_BIT(x) ((x)&0x8000)
-#define LDP_MASK_TLV_F_BIT(x) ((x)&0x4000)
-
-#define LDP_TLV_FEC 0x0100
-#define LDP_TLV_ADDRESS_LIST 0x0101
-#define LDP_TLV_HOP_COUNT 0x0103
-#define LDP_TLV_PATH_VECTOR 0x0104
-#define LDP_TLV_GENERIC_LABEL 0x0200
-#define LDP_TLV_ATM_LABEL 0x0201
-#define LDP_TLV_FR_LABEL 0x0202
-#define LDP_TLV_STATUS 0x0300
+#define LDP_MASK_F_BIT(x) ((x)&0x4000)
+
+#define LDP_TLV_FEC 0x0100
+#define LDP_TLV_ADDRESS_LIST 0x0101
+#define LDP_TLV_HOP_COUNT 0x0103
+#define LDP_TLV_PATH_VECTOR 0x0104
+#define LDP_TLV_GENERIC_LABEL 0x0200
+#define LDP_TLV_ATM_LABEL 0x0201
+#define LDP_TLV_FR_LABEL 0x0202
+#define LDP_TLV_STATUS 0x0300
+#define LDP_TLV_EXTD_STATUS 0x0301
+#define LDP_TLV_RETURNED_PDU 0x0302
+#define LDP_TLV_RETURNED_MSG 0x0303
+#define LDP_TLV_COMMON_HELLO 0x0400
+#define LDP_TLV_IPV4_TRASNPORT_ADDR 0x0401
+#define LDP_TLV_CONFIG_SEQ_NUMBER 0x0402
+#define LDP_TLV_IPV6_TRANSPORT_ADDR 0x0403
+#define LDP_TLV_COMMON_SESSION 0x0500
+#define LDP_TLV_ATM_SESSION_PARM 0x0501
+#define LDP_TLV_FR_SESSION_PARM 0x0502
+#define LDP_TLV_LABEL_REQUEST_MSG_ID 0x0600
static const struct tok ldp_tlv_values[] = {
- { LDP_TLV_FEC, "FEC" },
- { LDP_TLV_ADDRESS_LIST, "Address List" },
- { LDP_TLV_HOP_COUNT, "Hop Count" },
- { LDP_TLV_HOP_COUNT, "Path Vector" },
- { LDP_TLV_GENERIC_LABEL, "Generic Label" },
- { LDP_TLV_ATM_LABEL, "ATM Label" },
- { LDP_TLV_FR_LABEL, "Frame-Relay Label" },
- { LDP_TLV_STATUS, "Status" },
+ { LDP_TLV_FEC, "FEC" },
+ { LDP_TLV_ADDRESS_LIST, "Address List" },
+ { LDP_TLV_HOP_COUNT, "Hop Count" },
+ { LDP_TLV_PATH_VECTOR, "Path Vector" },
+ { LDP_TLV_GENERIC_LABEL, "Generic Label" },
+ { LDP_TLV_ATM_LABEL, "ATM Label" },
+ { LDP_TLV_FR_LABEL, "Frame-Relay Label" },
+ { LDP_TLV_STATUS, "Status" },
+ { LDP_TLV_EXTD_STATUS, "Extended Status" },
+ { LDP_TLV_RETURNED_PDU, "Returned PDU" },
+ { LDP_TLV_RETURNED_MSG, "Returned Message" },
+ { LDP_TLV_COMMON_HELLO, "Common Hello Parameters" },
+ { LDP_TLV_IPV4_TRASNPORT_ADDR, "IPv4 Transport Address" },
+ { LDP_TLV_CONFIG_SEQ_NUMBER, "Configuration Sequence Number" },
+ { LDP_TLV_IPV6_TRANSPORT_ADDR, "IPv6 Transport Address" },
+ { LDP_TLV_COMMON_SESSION, "Common Session Parameters" },
+ { LDP_TLV_ATM_SESSION_PARM, "ATM Session Parameters" },
+ { LDP_TLV_FR_SESSION_PARM, "Frame-Relay Session Parameters" },
+ { LDP_TLV_LABEL_REQUEST_MSG_ID, "Label Request Message ID" },
{ 0, NULL}
};
ldp_print(register const u_char *pptr, register u_int len) {
const struct ldp_common_header *ldp_com_header;
- const struct ldp_tlv_header *ldp_tlv_header;
- const u_char *tptr,*tlv_tptr;
- u_short tlen,tlv_len,tlv_type,tlv_tlen;
+ const struct ldp_msg_header *ldp_msg_header;
+ const u_char *tptr,*msg_tptr;
+ u_short tlen;
+ u_short msg_len,msg_type,msg_tlen;
int hexdump;
tptr=pptr;
tlen-=sizeof(const struct ldp_common_header);
while(tlen>0) {
- /* did we capture enough for fully decoding the tlv header ? */
- if (!TTEST2(*tptr, sizeof(struct ldp_tlv_header)))
+ /* did we capture enough for fully decoding the msg header ? */
+ if (!TTEST2(*tptr, sizeof(struct ldp_msg_header)))
goto trunc;
- ldp_tlv_header = (const struct ldp_tlv_header *)tptr;
- tlv_len=EXTRACT_16BITS(ldp_tlv_header->length);
- tlv_type=LDP_MASK_TLV_TYPE(EXTRACT_16BITS(ldp_tlv_header->type));
+ ldp_msg_header = (const struct ldp_msg_header *)tptr;
+ msg_len=EXTRACT_16BITS(ldp_msg_header->length);
+ msg_type=LDP_MASK_MSG_TYPE(EXTRACT_16BITS(ldp_msg_header->type));
- printf("\n\t %s TLV (0x%04x), length: %u, Flags: [%s and %s forward if unknown]",
- tok2str(ldp_tlv_values,
+ /* FIXME vendor private / experimental check */
+ printf("\n\t %s Message (0x%04x), length: %u, Message ID: 0x%08x, Flags: [%s if unknown]",
+ tok2str(ldp_msg_values,
"Unknown",
- tlv_type),
- tlv_type,
- tlv_len,
- LDP_MASK_TLV_U_BIT(EXTRACT_16BITS(&ldp_tlv_header->type)) ? "continue processing" : "ignore all, notify",
- LDP_MASK_TLV_F_BIT(EXTRACT_16BITS(&ldp_tlv_header->type)) ? "do" : "don't");
+ msg_type),
+ msg_type,
+ msg_len,
+ EXTRACT_32BITS(&ldp_msg_header->id),
+ LDP_MASK_U_BIT(EXTRACT_16BITS(&ldp_msg_header->type)) ? "continue processing" : "ignore all and notify");
- tlv_tptr=tptr+sizeof(struct ldp_tlv_header);
- tlv_tlen=tlv_len-sizeof(struct ldp_tlv_header);
+ msg_tptr=tptr+sizeof(struct ldp_msg_header);
+ msg_tlen=msg_len-sizeof(struct ldp_msg_header);
- /* did we capture enough for fully decoding the object ? */
- if (!TTEST2(*tptr, tlv_len))
+ /* did we capture enough for fully decoding the message ? */
+ if (!TTEST2(*tptr, msg_len))
goto trunc;
hexdump=FALSE;
- switch(tlv_type) {
+ switch(msg_type) {
/*
- * FIXME those are the defined objects that lack a decoder
+ * FIXME those are the defined messages that lack a decoder
* you are welcome to contribute code ;-)
*/
- case LDP_TLV_FEC:
- case LDP_TLV_ADDRESS_LIST:
- case LDP_TLV_HOP_COUNT:
- case LDP_TLV_PATH_VECTOR:
- case LDP_TLV_GENERIC_LABEL:
- case LDP_TLV_ATM_LABEL:
- case LDP_TLV_FR_LABEL:
- case LDP_TLV_STATUS:
+ case LDP_MSG_NOTIF:
+ case LDP_MSG_HELLO:
+ case LDP_MSG_INIT:
+ case LDP_MSG_KEEPALIVE:
+ case LDP_MSG_ADDRESS:
+ case LDP_MSG_ADDRESS_WITHDRAW:
+ case LDP_MSG_LABEL_MAPPING:
+ case LDP_MSG_LABEL_REQUEST:
+ case LDP_MSG_LABEL_WITHDRAW:
+ case LDP_MSG_LABEL_RELEASE:
+ case LDP_MSG_LABEL_ABORT_REQUEST:
+
default:
if (vflag <= 1)
- print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen);
+ print_unknown_data(msg_tptr,"\n\t ",msg_tlen);
break;
}
/* do we want to see an additionally hexdump ? */
if (vflag > 1 || hexdump==TRUE)
- print_unknown_data(tptr+sizeof(sizeof(struct ldp_tlv_header)),"\n\t ",
- tlv_len-sizeof(struct ldp_tlv_header));
+ print_unknown_data(tptr+sizeof(sizeof(struct ldp_msg_header)),"\n\t ",
+ msg_len-sizeof(struct ldp_msg_header));
- tptr+=tlv_len;
- tlen-=tlv_len;
+ tptr+=msg_len;
+ tlen-=msg_len;
}
return;
trunc:
projects / tcpdump / commitdiff
