Lines Matching +full:control +full:- +full:field

29 #include "netdissect-stdinc.h"
152 	uint16_t control;
156 	ndo->ndo_protocol = "llc";
173 	 * of the control field depends on that - I frames
174 	 * have a two-byte control field, and U frames have
175 	 * a one-byte control field.
177 	control = GET_U_1(p + 2);
178 	if ((control & LLC_U_FMT) == LLC_U_FMT) {
183 		hdrlen = 3;	/* DSAP, SSAP, 1-byte control field */
186 		 * The control field in I and S frames is
201 		 * ...and is little-endian.
203 		control = GET_LE_U_2(p + 2);
205 		hdrlen = 4;	/* DSAP, SSAP, 2-byte control field */
212 		 * type/length field is <= MAX_ETHERNET_LENGTH_VAL,
213 		 * i.e. it's a length field, not a type field), but
214 		 * has no 802.2 header - the IPX packet starts right
224             if (ndo->ndo_eflag)
234 	if (ndo->ndo_eflag) {
244 			ND_PRINT(", ctrl 0x%02x: ", control);
246 			ND_PRINT(", ctrl 0x%04x: ", control);
254 	length -= hdrlen;
255 	caplen -= hdrlen;
258 	    && control == LLC_UI) {
260 		 * XXX - what *is* the right bridge pad value here?
270 			return (-(hdrlen + 5));	/* include LLC and SNAP header */
276 	    control == LLC_UI) {
282 	    control == LLC_UI) {
284 		 * This is an RFC 948-style IP packet, with
294 	    control == LLC_UI) {
300                 if (ndo->ndo_eflag)
309 	    && (!(control & LLC_S_FMT) || control == LLC_U_FMT)) {
312 		 * smb parser can handle many smb-in-netbeui packets, which
316 		 * (which are frames that don't have the low-order bit,
317 		 * LLC_S_FMT, set in the first byte of the control field)
318 		 * and UI frames (whose control field is just 3, LLC_U_FMT).
320 		netbeui_print(ndo, control, p, length);
325 	    && control == LLC_UI) {
330 	if (!ndo->ndo_eflag) {
336 						(src->addr_string)(ndo, src->addr),
337 						(dst->addr_string)(ndo, dst->addr),
346 					(src->addr_string)(ndo, src->addr),
348 					(dst->addr_string)(ndo, dst->addr),
355                        tok2str(llc_cmd_values, "%02x", LLC_U_CMD(control)),
356                        tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_U_POLL)),
359 		if ((control & ~LLC_U_POLL) == LLC_XID) {
387 		if ((control & LLC_S_FMT) == LLC_S_FMT) {
389 				tok2str(llc_supervisory_values,"?",LLC_S_CMD(control)),
390 				LLC_IS_NR(control),
391 				tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_IS_POLL)),
396 				LLC_I_NS(control),
397 				LLC_IS_NR(control),
398 				tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_IS_POLL)),
402 	return (-hdrlen);
411 	for (otp = &oui_to_tok[0]; otp->tok != NULL; otp++) {
412 		if (otp->oui == orgcode) {
413 			tok = otp->tok;
429 	ndo->ndo_protocol = "snap";
436 	if (ndo->ndo_eflag) {
447 		     et, length - 5);
450 	length -= 5;
451 	caplen -= 5;
512 			 * XXX - remove the last two bytes for
519 			caplen -= bridge_pad;
520 			length -= bridge_pad;
532 			 * XXX - remove the last two bytes for
537 			 * Control field.
540 			caplen -= bridge_pad;
541 			length -= bridge_pad;
554 			 * XXX - remove the last two bytes for
561 			caplen -= bridge_pad + 1;
562 			length -= bridge_pad + 1;
576 	if (!ndo->ndo_eflag) {
578 		 * Nobody printed the link-layer addresses, so print them, if
583 				(src->addr_string)(ndo, src->addr),
584 				(dst->addr_string)(ndo, dst->addr));