X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/8f94d68a09e1103353cc7d1133d6dfdf7d5a920d..a8c33a5850cd9d2f39e56c06b645c283225d78c4:/print-llc.c diff --git a/print-llc.c b/print-llc.c index f4300f8a..750a8ccd 100644 --- a/print-llc.c +++ b/print-llc.c @@ -22,28 +22,42 @@ * with an awful lot of hacking by Jeffrey Mogul, DECWRL */ -#ifndef lint -static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-llc.c,v 1.52 2003-05-22 16:52:38 hannes Exp $"; -#endif +/* \summary: IEEE 802.2 LLC printer */ #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif -#include - -#include -#include +#include "netdissect-stdinc.h" -#include "interface.h" +#include "netdissect.h" #include "addrtoname.h" -#include "extract.h" /* must come after interface.h */ +#include "extract.h" #include "llc.h" #include "ethertype.h" +#include "oui.h" + +static const struct tok llc_values[] = { + { LLCSAP_NULL, "Null" }, + { LLCSAP_GLOBAL, "Global" }, + { LLCSAP_8021B_I, "802.1B I" }, + { LLCSAP_8021B_G, "802.1B G" }, + { LLCSAP_IP, "IP" }, + { LLCSAP_SNA, "SNA" }, + { LLCSAP_PROWAYNM, "ProWay NM" }, + { LLCSAP_8021D, "STP" }, + { LLCSAP_RS511, "RS511" }, + { LLCSAP_ISO8208, "ISO8208" }, + { LLCSAP_PROWAY, "ProWay" }, + { LLCSAP_SNAP, "SNAP" }, + { LLCSAP_IPX, "IPX" }, + { LLCSAP_NETBEUI, "NetBeui" }, + { LLCSAP_ISONS, "OSI" }, + { 0, NULL }, +}; -static struct tok cmd2str[] = { +static const struct tok llc_cmd_values[] = { { LLC_UI, "ui" }, { LLC_TEST, "test" }, { LLC_XID, "xid" }, @@ -55,77 +69,246 @@ static struct tok cmd2str[] = { { 0, NULL } }; +static const struct tok llc_flag_values[] = { + { 0, "Command" }, + { LLC_GSAP, "Response" }, + { LLC_U_POLL, "Poll" }, + { LLC_GSAP|LLC_U_POLL, "Final" }, + { LLC_IS_POLL, "Poll" }, + { LLC_GSAP|LLC_IS_POLL, "Final" }, + { 0, NULL } +}; + + +static const struct tok llc_ig_flag_values[] = { + { 0, "Individual" }, + { LLC_IG, "Group" }, + { 0, NULL } +}; + + +static const struct tok llc_supervisory_values[] = { + { 0, "Receiver Ready" }, + { 1, "Receiver not Ready" }, + { 2, "Reject" }, + { 0, NULL } +}; + + +static const struct tok cisco_values[] = { + { PID_CISCO_CDP, "CDP" }, + { PID_CISCO_VTP, "VTP" }, + { PID_CISCO_DTP, "DTP" }, + { PID_CISCO_UDLD, "UDLD" }, + { PID_CISCO_PVST, "PVST" }, + { PID_CISCO_VLANBRIDGE, "VLAN Bridge" }, + { 0, NULL } +}; + +static const struct tok bridged_values[] = { + { PID_RFC2684_ETH_FCS, "Ethernet + FCS" }, + { PID_RFC2684_ETH_NOFCS, "Ethernet w/o FCS" }, + { PID_RFC2684_802_4_FCS, "802.4 + FCS" }, + { PID_RFC2684_802_4_NOFCS, "802.4 w/o FCS" }, + { PID_RFC2684_802_5_FCS, "Token Ring + FCS" }, + { PID_RFC2684_802_5_NOFCS, "Token Ring w/o FCS" }, + { PID_RFC2684_FDDI_FCS, "FDDI + FCS" }, + { PID_RFC2684_FDDI_NOFCS, "FDDI w/o FCS" }, + { PID_RFC2684_802_6_FCS, "802.6 + FCS" }, + { PID_RFC2684_802_6_NOFCS, "802.6 w/o FCS" }, + { PID_RFC2684_BPDU, "BPDU" }, + { 0, NULL }, +}; + +static const struct tok null_values[] = { + { 0, NULL } +}; + +struct oui_tok { + uint32_t oui; + const struct tok *tok; +}; + +static const struct oui_tok oui_to_tok[] = { + { OUI_ENCAP_ETHER, ethertype_values }, + { OUI_CISCO_90, ethertype_values }, /* uses some Ethertype values */ + { OUI_APPLETALK, ethertype_values }, /* uses some Ethertype values */ + { OUI_CISCO, cisco_values }, + { OUI_RFC2684, bridged_values }, /* bridged, RFC 2427 FR or RFC 2864 ATM */ + { 0, NULL } +}; + /* - * Returns non-zero IFF it succeeds in printing the header + * If we printed information about the payload, returns the length of the LLC + * header, plus the length of any SNAP header following it. + * + * Otherwise (for example, if the packet has unknown SAPs or has a SNAP + * header with an unknown OUI/PID combination), returns the *negative* + * of that value. */ int -llc_print(const u_char *p, u_int length, u_int caplen, - const u_char *esrc, const u_char *edst, u_short *extracted_ethertype) +llc_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen, + const struct lladdr_info *src, const struct lladdr_info *dst) { - struct llc llc; - register u_short et; - u_int16_t control; - register int ret; + uint8_t dsap_field, dsap, ssap_field, ssap; + uint16_t control; + int hdrlen; + int is_u; + ndo->ndo_protocol = "llc"; if (caplen < 3) { - (void)printf("[|llc]"); - default_print((u_char *)p, caplen); - return(0); + nd_print_trunc(ndo); + ND_DEFAULTPRINT((const u_char *)p, caplen); + return (caplen); } + if (length < 3) { + nd_print_trunc(ndo); + ND_DEFAULTPRINT((const u_char *)p, caplen); + return (length); + } + + dsap_field = GET_U_1(p); + ssap_field = GET_U_1(p + 1); + + /* + * OK, what type of LLC frame is this? The length + * of the control field depends on that - I frames + * have a two-byte control field, and U frames have + * a one-byte control field. + */ + control = GET_U_1(p + 2); + if ((control & LLC_U_FMT) == LLC_U_FMT) { + /* + * U frame. + */ + is_u = 1; + hdrlen = 3; /* DSAP, SSAP, 1-byte control field */ + } else { + /* + * The control field in I and S frames is + * 2 bytes... + */ + if (caplen < 4) { + nd_print_trunc(ndo); + ND_DEFAULTPRINT((const u_char *)p, caplen); + return (caplen); + } + if (length < 4) { + nd_print_trunc(ndo); + ND_DEFAULTPRINT((const u_char *)p, caplen); + return (length); + } - /* Watch out for possible alignment problems */ - memcpy((char *)&llc, (char *)p, min(caplen, sizeof(llc))); + /* + * ...and is little-endian. + */ + control = GET_LE_U_2(p + 2); + is_u = 0; + hdrlen = 4; /* DSAP, SSAP, 2-byte control field */ + } - if (llc.ssap == LLCSAP_GLOBAL && llc.dsap == LLCSAP_GLOBAL) { + if (ssap_field == LLCSAP_GLOBAL && dsap_field == LLCSAP_GLOBAL) { /* * This is an Ethernet_802.3 IPX frame; it has an * 802.3 header (i.e., an Ethernet header where the - * type/length field is <= ETHERMTU, i.e. it's a length - * field, not a type field), but has no 802.2 header - - * the IPX packet starts right after the Ethernet header, - * with a signature of two bytes of 0xFF (which is - * LLCSAP_GLOBAL). + * type/length field is <= MAX_ETHERNET_LENGTH_VAL, + * i.e. it's a length field, not a type field), but + * has no 802.2 header - the IPX packet starts right + * after the Ethernet header, with a signature of two + * bytes of 0xFF (which is LLCSAP_GLOBAL). * * (It might also have been an Ethernet_802.3 IPX at * one time, but got bridged onto another network, * such as an 802.11 network; this has appeared in at * least one capture file.) */ - printf("(NOV-802.3) "); - ipx_print(p, length); - return (1); + + if (ndo->ndo_eflag) + ND_PRINT("IPX 802.3: "); + + ipx_print(ndo, p, length); + return (0); /* no LLC header */ + } + + dsap = dsap_field & ~LLC_IG; + ssap = ssap_field & ~LLC_GSAP; + + if (ndo->ndo_eflag) { + ND_PRINT("LLC, dsap %s (0x%02x) %s, ssap %s (0x%02x) %s", + tok2str(llc_values, "Unknown", dsap), + dsap, + tok2str(llc_ig_flag_values, "Unknown", dsap_field & LLC_IG), + tok2str(llc_values, "Unknown", ssap), + ssap, + tok2str(llc_flag_values, "Unknown", ssap_field & LLC_GSAP)); + + if (is_u) { + ND_PRINT(", ctrl 0x%02x: ", control); + } else { + ND_PRINT(", ctrl 0x%04x: ", control); + } + } + + /* + * Skip LLC header. + */ + p += hdrlen; + length -= hdrlen; + caplen -= hdrlen; + + if (ssap == LLCSAP_SNAP && dsap == LLCSAP_SNAP + && control == LLC_UI) { + /* + * XXX - what *is* the right bridge pad value here? + * Does anybody ever bridge one form of LAN traffic + * over a networking type that uses 802.2 LLC? + */ + if (!snap_print(ndo, p, length, caplen, src, dst, 2)) { + /* + * Unknown packet type; tell our caller, by + * returning a negative value, so they + * can print the raw packet. + */ + return (-(hdrlen + 5)); /* include LLC and SNAP header */ + } else + return (hdrlen + 5); /* include LLC and SNAP header */ } - if (llc.ssap == LLCSAP_8021D && llc.dsap == LLCSAP_8021D) { - stp_print(p, length); - return (1); + if (ssap == LLCSAP_8021D && dsap == LLCSAP_8021D && + control == LLC_UI) { + stp_print(ndo, p, length); + return (hdrlen); } - if (llc.ssap == LLCSAP_IP && llc.dsap == LLCSAP_IP) { - ip_print(p+4, length-4); - return (1); + if (ssap == LLCSAP_IP && dsap == LLCSAP_IP && + control == LLC_UI) { + /* + * This is an RFC 948-style IP packet, with + * an 802.3 header and an 802.2 LLC header + * with the source and destination SAPs being + * the IP SAP. + */ + ip_print(ndo, p, length); + return (hdrlen); } - if (llc.ssap == LLCSAP_IPX && llc.dsap == LLCSAP_IPX && - llc.llcui == LLC_UI) { + if (ssap == LLCSAP_IPX && dsap == LLCSAP_IPX && + control == LLC_UI) { /* * This is an Ethernet_802.2 IPX frame, with an 802.3 * header and an 802.2 LLC header with the source and * destination SAPs being the IPX SAP. - * - * Skip DSAP, LSAP, and control field. */ - printf("(NOV-802.2) "); - p += 3; - length -= 3; - caplen -= 3; - ipx_print(p, length); - return (1); + if (ndo->ndo_eflag) + ND_PRINT("IPX 802.2: "); + + ipx_print(ndo, p, length); + return (hdrlen); } -#ifdef TCPDUMP_DO_SMB - if (llc.ssap == LLCSAP_NETBEUI && llc.dsap == LLCSAP_NETBEUI - && (!(llc.llcu & LLC_S_FMT) || llc.llcu == LLC_U_FMT)) { +#ifdef ENABLE_SMB + if (ssap == LLCSAP_NETBEUI && dsap == LLCSAP_NETBEUI + && (!(control & LLC_S_FMT) || control == LLC_U_FMT)) { /* * we don't actually have a full netbeui parser yet, but the * smb parser can handle many smb-in-netbeui packets, which @@ -136,165 +319,138 @@ llc_print(const u_char *p, u_int length, u_int caplen, * LLC_S_FMT, set in the first byte of the control field) * and UI frames (whose control field is just 3, LLC_U_FMT). */ - - /* - * Skip the DSAP and LSAP. - */ - p += 2; - length -= 2; - caplen -= 2; - - /* - * OK, what type of LLC frame is this? The length - * of the control field depends on that - I frames - * have a two-byte control field, and U frames have - * a one-byte control field. - */ - if (llc.llcu == LLC_U_FMT) { - control = llc.llcu; - p += 1; - length -= 1; - caplen -= 1; - } else { - /* - * The control field in I and S frames is - * little-endian. - */ - control = EXTRACT_LE_16BITS(&llc.llcu); - p += 2; - length -= 2; - caplen -= 2; - } - netbeui_print(control, p, length); - return (1); + netbeui_print(ndo, control, p, length); + return (hdrlen); } #endif - if (llc.ssap == LLCSAP_ISONS && llc.dsap == LLCSAP_ISONS - && llc.llcui == LLC_UI) { - isoclns_print(p + 3, length - 3, caplen - 3); - return (1); + if (ssap == LLCSAP_ISONS && dsap == LLCSAP_ISONS + && control == LLC_UI) { + isoclns_print(ndo, p, length); + return (hdrlen); } - if (llc.ssap == LLCSAP_SNAP && llc.dsap == LLCSAP_SNAP - && llc.llcui == LLC_UI) { - u_int32_t orgcode; - - if (caplen < sizeof(llc)) { - (void)printf("[|llc-snap]"); - default_print((u_char *)p, caplen); - return (0); + if (!ndo->ndo_eflag) { + if (ssap == dsap) { + if (src == NULL || dst == NULL) + ND_PRINT("%s ", tok2str(llc_values, "Unknown DSAP 0x%02x", dsap)); + else + ND_PRINT("%s > %s %s ", + (src->addr_string)(ndo, src->addr), + (dst->addr_string)(ndo, dst->addr), + tok2str(llc_values, "Unknown DSAP 0x%02x", dsap)); + } else { + if (src == NULL || dst == NULL) + ND_PRINT("%s > %s ", + tok2str(llc_values, "Unknown SSAP 0x%02x", ssap), + tok2str(llc_values, "Unknown DSAP 0x%02x", dsap)); + else + ND_PRINT("%s %s > %s %s ", + (src->addr_string)(ndo, src->addr), + tok2str(llc_values, "Unknown SSAP 0x%02x", ssap), + (dst->addr_string)(ndo, dst->addr), + tok2str(llc_values, "Unknown DSAP 0x%02x", dsap)); } - if (vflag) - (void)printf("snap %s ", protoid_string(llc.llcpi)); - - caplen -= sizeof(llc); - length -= sizeof(llc); - p += sizeof(llc); - - orgcode = EXTRACT_24BITS(&llc.llc_orgcode[0]); - et = EXTRACT_16BITS(&llc.llc_ethertype[0]); - /* - * XXX - what *is* the right bridge pad value here? - * Does anybody ever bridge one form of LAN traffic - * over a networking type that uses 802.2 LLC? - */ - ret = snap_print(p, length, caplen, extracted_ethertype, - orgcode, et, 2); - if (ret) - return (ret); - } - - if ((llc.ssap & ~LLC_GSAP) == llc.dsap) { - if (eflag || esrc == NULL || edst == NULL) - (void)printf("%s ", llcsap_string(llc.dsap)); - else - (void)printf("%s > %s %s ", - etheraddr_string(esrc), - etheraddr_string(edst), - llcsap_string(llc.dsap)); - } else { - if (eflag || esrc == NULL || edst == NULL) - (void)printf("%s > %s ", - llcsap_string(llc.ssap & ~LLC_GSAP), - llcsap_string(llc.dsap)); - else - (void)printf("%s %s > %s %s ", - etheraddr_string(esrc), - llcsap_string(llc.ssap & ~LLC_GSAP), - etheraddr_string(edst), - llcsap_string(llc.dsap)); } - if ((llc.llcu & LLC_U_FMT) == LLC_U_FMT) { - u_int16_t cmd; - const char *m; - char f; - - cmd = LLC_U_CMD(llc.llcu); - m = tok2str(cmd2str, "%02x", cmd); - switch ((llc.ssap & LLC_GSAP) | (llc.llcu & LLC_U_POLL)) { - case 0: f = 'C'; break; - case LLC_GSAP: f = 'R'; break; - case LLC_U_POLL: f = 'P'; break; - case LLC_GSAP|LLC_U_POLL: f = 'F'; break; - default: f = '?'; break; - } - - printf("%s/%c", m, f); - - p += 3; - length -= 3; - caplen -= 3; - - if ((llc.llcu & ~LLC_U_POLL) == LLC_XID) { - if (*p == LLC_XID_FI) { - printf(": %02x %02x", p[1], p[2]); - p += 3; - length -= 3; - caplen -= 3; + if (is_u) { + ND_PRINT("Unnumbered, %s, Flags [%s], length %u", + tok2str(llc_cmd_values, "%02x", LLC_U_CMD(control)), + tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_U_POLL)), + length + hdrlen); + + if ((control & ~LLC_U_POLL) == LLC_XID) { + if (length == 0) { + /* + * XID with no payload. + * This could, for example, be an SNA + * "short form" XID. + */ + return (hdrlen); + } + if (caplen < 1) { + nd_print_trunc(ndo); + if (caplen > 0) + ND_DEFAULTPRINT((const u_char *)p, caplen); + return (hdrlen); + } + if (GET_U_1(p) == LLC_XID_FI) { + if (caplen < 3 || length < 3) { + nd_print_trunc(ndo); + if (caplen > 0) + ND_DEFAULTPRINT((const u_char *)p, caplen); + } else + ND_PRINT(": %02x %02x", + GET_U_1(p + 1), + GET_U_1(p + 2)); + return (hdrlen); } } } else { - char f; - - /* - * The control field in I and S frames is little-endian. - */ - control = EXTRACT_LE_16BITS(&llc.llcu); - switch ((llc.ssap & LLC_GSAP) | (control & LLC_IS_POLL)) { - case 0: f = 'C'; break; - case LLC_GSAP: f = 'R'; break; - case LLC_IS_POLL: f = 'P'; break; - case LLC_GSAP|LLC_IS_POLL: f = 'F'; break; - default: f = '?'; break; - } - if ((control & LLC_S_FMT) == LLC_S_FMT) { - static const char *llc_s[] = { "rr", "rej", "rnr", "03" }; - (void)printf("%s (r=%d,%c)", - llc_s[LLC_S_CMD(control)], + ND_PRINT("Supervisory, %s, rcv seq %u, Flags [%s], length %u", + tok2str(llc_supervisory_values,"?",LLC_S_CMD(control)), LLC_IS_NR(control), - f); + tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_IS_POLL)), + length + hdrlen); + return (hdrlen); /* no payload to print */ } else { - (void)printf("I (s=%d,r=%d,%c)", + ND_PRINT("Information, send seq %u, rcv seq %u, Flags [%s], length %u", LLC_I_NS(control), LLC_IS_NR(control), - f); + tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_IS_POLL)), + length + hdrlen); + } + } + return (-hdrlen); +} + +static const struct tok * +oui_to_struct_tok(uint32_t orgcode) +{ + const struct tok *tok = null_values; + const struct oui_tok *otp; + + for (otp = &oui_to_tok[0]; otp->tok != NULL; otp++) { + if (otp->oui == orgcode) { + tok = otp->tok; + break; } - p += 4; - length -= 4; - caplen -= 4; } - (void)printf(" len=%d", length); - return(1); + return (tok); } int -snap_print(const u_char *p, u_int length, u_int caplen, - u_short *extracted_ethertype, u_int32_t orgcode, u_short et, - u_int bridge_pad) +snap_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen, + const struct lladdr_info *src, const struct lladdr_info *dst, + u_int bridge_pad) { - register int ret; + uint32_t orgcode; + u_short et; + int ret; + + ndo->ndo_protocol = "snap"; + ND_TCHECK_5(p); + if (caplen < 5 || length < 5) + goto trunc; + orgcode = GET_BE_U_3(p); + et = GET_BE_U_2(p + 3); + + if (ndo->ndo_eflag) { + /* + * Somebody's already printed the MAC addresses, if there + * are any, so just print the SNAP header, not the MAC + * addresses. + */ + ND_PRINT("oui %s (0x%06x), %s %s (0x%04x), length %u: ", + tok2str(oui_values, "Unknown", orgcode), + orgcode, + (orgcode == 0x000000 ? "ethertype" : "pid"), + tok2str(oui_to_struct_tok(orgcode), "Unknown", et), + et, length - 5); + } + p += 5; + length -= 5; + caplen -= 5; switch (orgcode) { case OUI_ENCAP_ETHER: @@ -305,8 +461,7 @@ snap_print(const u_char *p, u_int length, u_int caplen, * Cisco hardware; the protocol ID is * an Ethernet protocol type. */ - ret = ether_encap_print(et, p, length, caplen, - extracted_ethertype); + ret = ethertype_print(ndo, et, p, length, caplen, src, dst); if (ret) return (ret); break; @@ -321,18 +476,33 @@ snap_print(const u_char *p, u_int length, u_int caplen, * but used 0x000000 and an Ethernet * packet type for AARP packets. */ - ret = ether_encap_print(et, p, length, caplen, - extracted_ethertype); + ret = ethertype_print(ndo, et, p, length, caplen, src, dst); if (ret) return (ret); } break; case OUI_CISCO: - if (et == PID_CISCO_CDP) { - cdp_print(p, length, caplen); - return (1); - } + switch (et) { + case PID_CISCO_CDP: + cdp_print(ndo, p, length, caplen); + return (1); + case PID_CISCO_DTP: + dtp_print(ndo, p, length); + return (1); + case PID_CISCO_UDLD: + udld_print(ndo, p, length); + return (1); + case PID_CISCO_VTP: + vtp_print(ndo, p, length); + return (1); + case PID_CISCO_PVST: + case PID_CISCO_VLANBRIDGE: + stp_print(ndo, p, length); + return (1); + default: + break; + } break; case OUI_RFC2684: @@ -347,6 +517,7 @@ snap_print(const u_char *p, u_int length, u_int caplen, /* * Skip the padding. */ + ND_TCHECK_LEN(p, bridge_pad); caplen -= bridge_pad; length -= bridge_pad; p += bridge_pad; @@ -354,7 +525,7 @@ snap_print(const u_char *p, u_int length, u_int caplen, /* * What remains is an Ethernet packet. */ - ether_print(p, length, caplen); + ether_print(ndo, p, length, caplen, NULL, NULL); return (1); case PID_RFC2684_802_5_FCS: @@ -367,6 +538,7 @@ snap_print(const u_char *p, u_int length, u_int caplen, * Skip the padding, but not the Access * Control field. */ + ND_TCHECK_LEN(p, bridge_pad); caplen -= bridge_pad; length -= bridge_pad; p += bridge_pad; @@ -375,7 +547,7 @@ snap_print(const u_char *p, u_int length, u_int caplen, * What remains is an 802.5 Token Ring * packet. */ - token_print(p, length, caplen); + token_print(ndo, p, length, caplen); return (1); case PID_RFC2684_FDDI_FCS: @@ -387,6 +559,7 @@ snap_print(const u_char *p, u_int length, u_int caplen, /* * Skip the padding. */ + ND_TCHECK_LEN(p, bridge_pad + 1); caplen -= bridge_pad + 1; length -= bridge_pad + 1; p += bridge_pad + 1; @@ -394,13 +567,44 @@ snap_print(const u_char *p, u_int length, u_int caplen, /* * What remains is an FDDI packet. */ - fddi_print(p, length, caplen); + fddi_print(ndo, p, length, caplen); return (1); case PID_RFC2684_BPDU: - stp_print(p, length); + stp_print(ndo, p, length); return (1); } } + if (!ndo->ndo_eflag) { + /* + * Nobody printed the link-layer addresses, so print them, if + * we have any. + */ + if (src != NULL && dst != NULL) { + ND_PRINT("%s > %s ", + (src->addr_string)(ndo, src->addr), + (dst->addr_string)(ndo, dst->addr)); + } + /* + * Print the SNAP header, but if the OUI is 000000, don't + * bother printing it, and report the PID as being an + * ethertype. + */ + if (orgcode == 0x000000) { + ND_PRINT("SNAP, ethertype %s (0x%04x), length %u: ", + tok2str(ethertype_values, "Unknown", et), + et, length); + } else { + ND_PRINT("SNAP, oui %s (0x%06x), pid %s (0x%04x), length %u: ", + tok2str(oui_values, "Unknown", orgcode), + orgcode, + tok2str(oui_to_struct_tok(orgcode), "Unknown", et), + et, length); + } + } return (0); + +trunc: + nd_print_trunc(ndo); + return (1); }