21 #include "netdissect-stdinc.h"
36  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
38  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
40  * +                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
42  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
60  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
62  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
64  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
70  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
76  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
153     { LDP_TLV_FR_LABEL,              "Frame-Relay Label" },
164     { LDP_TLV_FR_SESSION_PARM,       "Frame-Relay Session Parameters" },
165     { LDP_TLV_FT_SESSION,            "Fault-Tolerant Session Parameters" },
174 /* From RFC 4906; should probably be updated to RFC 4447 (e.g., VC -> PW) */
196 /* draft-ietf-pwe3-vccv-04.txt */
204 /* draft-ietf-pwe3-vccv-04.txt */
206     { 0x01, "ICMP Ping" },
207     { 0x02, "LSP Ping" },
219  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
221  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
226  * |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
228  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
257     tlv_len=GET_BE_U_2(ldp_tlv_header->length);  in ldp_tlv_print()
263     tlv_type=LDP_MASK_TLV_TYPE(GET_BE_U_2(ldp_tlv_header->type));  in ldp_tlv_print()
272            LDP_MASK_U_BIT(GET_BE_U_2(ldp_tlv_header->type)) ? "continue processing" : "ignore",  in ldp_tlv_print()
273            LDP_MASK_F_BIT(GET_BE_U_2(ldp_tlv_header->type)) ? "do" : "don't");  in ldp_tlv_print()
304         tlv_tlen -= LDP_TLV_ADDRESS_LIST_AFNUM_LEN;  in ldp_tlv_print()
311 		tlv_tlen-=sizeof(nd_ipv4);  in ldp_tlv_print()
318 		tlv_tlen-=sizeof(nd_ipv6);  in ldp_tlv_print()
335 	ND_PRINT("\n\t      Path Vector Limit %u, Max-PDU length: %u, Receiver Label-Space-ID %s:%u",  in ldp_tlv_print()
351 	tlv_tlen-=1;  in ldp_tlv_print()
360 	    tlv_tlen-=2;  in ldp_tlv_print()
363 		if (i == -2)  in ldp_tlv_print()
365 		if (i == -3)  in ldp_tlv_print()
367 		else if (i == -1)  in ldp_tlv_print()
373 		if (i == -2)  in ldp_tlv_print()
375 		if (i == -3)  in ldp_tlv_print()
377 		else if (i == -1)  in ldp_tlv_print()
400                 ND_PRINT(": %s, %scontrol word, group-ID %u, VC-info-length: %u",  in ldp_tlv_print()
410 	    ND_PRINT(": %s, %scontrol word, group-ID %u, VC-ID %u, VC-info-length: %u",  in ldp_tlv_print()
421 …      vc_info_len -= 4; /* subtract out the VC ID, giving the length of the interface parameters */  in ldp_tlv_print()
425             tlv_tlen-=11;  in ldp_tlv_print()
462                     print_unknown_data(ndo, tptr+2, "\n\t\t  ", vc_info_tlv_len-2);  in ldp_tlv_print()
466                 vc_info_len -= vc_info_tlv_len;  in ldp_tlv_print()
496 …PRINT("\n\t      Flags: [%sReconnect, %sSave State, %sAll-Label Protection, %s Checkpoint, %sRe-Le…  in ldp_tlv_print()
521      *  you are welcome to contribute code ;-)  in ldp_tlv_print()
536         if (ndo->ndo_vflag <= 1)  in ldp_tlv_print()
555     ndo->ndo_protocol = "ldp";  in ldp_print()
565         len -= processed;  in ldp_print()
588     if (GET_BE_U_2(ldp_com_header->version) != LDP_VERSION) {  in ldp_pdu_print()
590                (ndo->ndo_vflag < 1) ? "" : "\n\t",  in ldp_pdu_print()
591                GET_BE_U_2(ldp_com_header->version));  in ldp_pdu_print()
595     pdu_len = GET_BE_U_2(ldp_com_header->pdu_length);  in ldp_pdu_print()
596     if (pdu_len < sizeof(struct ldp_common_header)-4) {  in ldp_pdu_print()
597         /* length too short */  in ldp_pdu_print()
598         ND_PRINT("%sLDP, pdu-length: %u (too short, < %zu)",  in ldp_pdu_print()
599                  (ndo->ndo_vflag < 1) ? "" : "\n\t",  in ldp_pdu_print()
601                  sizeof(struct ldp_common_header)-4);  in ldp_pdu_print()
605     /* print the LSR-ID, label-space & length */  in ldp_pdu_print()
606     ND_PRINT("%sLDP, Label-Space-ID: %s:%u, pdu-length: %u",  in ldp_pdu_print()
607            (ndo->ndo_vflag < 1) ? "" : "\n\t",  in ldp_pdu_print()
608            GET_IPADDR_STRING(ldp_com_header->lsr_id),  in ldp_pdu_print()
609            GET_BE_U_2(ldp_com_header->label_space),  in ldp_pdu_print()
612     /* bail out if non-verbose */  in ldp_pdu_print()
613     if (ndo->ndo_vflag < 1)  in ldp_pdu_print()
616     /* ok they seem to want to know everything - lets fully decode it */  in ldp_pdu_print()
618     tlen = pdu_len - (sizeof(struct ldp_common_header)-4);	/* Type & Length fields not included */  in ldp_pdu_print()
625         msg_len=GET_BE_U_2(ldp_msg_header->length);  in ldp_pdu_print()
626         msg_type=LDP_MASK_MSG_TYPE(GET_BE_U_2(ldp_msg_header->type));  in ldp_pdu_print()
628         if (msg_len < sizeof(struct ldp_msg_header)-4) {  in ldp_pdu_print()
629             /* length too short */  in ldp_pdu_print()
631             ND_PRINT("\n\t  %s Message (0x%04x), length: %u (too short, < %zu)",  in ldp_pdu_print()
637                      sizeof(struct ldp_msg_header)-4);  in ldp_pdu_print()
648                GET_BE_U_4(ldp_msg_header->id),  in ldp_pdu_print()
649                LDP_MASK_U_BIT(GET_BE_U_2(ldp_msg_header->type)) ? "continue processing" : "ignore");  in ldp_pdu_print()
652         msg_tlen=msg_len-(sizeof(struct ldp_msg_header)-4); /* Type & Length fields not included */  in ldp_pdu_print()
672                 msg_tlen-=processed;  in ldp_pdu_print()
679          *  you are welcome to contribute code ;-)  in ldp_pdu_print()
687             if (ndo->ndo_vflag <= 1)  in ldp_pdu_print()
692         if (ndo->ndo_vflag > 1 || hexdump==TRUE)  in ldp_pdu_print()
697         tlen -= msg_len+4;  in ldp_pdu_print()