Example #1
0
/*
 * Print the 802.11 MAC header if eflag is set, and set "*srcp" and "*dstp"
 * to point to the source and destination MAC addresses in any case if
 * "srcp" and "dstp" aren't null.
 */
static void
ieee_802_11_hdr_print(u_int16_t fc, const u_char *p, u_int hdrlen,
    u_int meshdrlen, const u_int8_t **srcp, const u_int8_t **dstp)
{
	if (vflag) {
		if (FC_MORE_DATA(fc))
			printf("More Data ");
		if (FC_MORE_FLAG(fc))
			printf("More Fragments ");
		if (FC_POWER_MGMT(fc))
			printf("Pwr Mgmt ");
		if (FC_RETRY(fc))
			printf("Retry ");
		if (FC_ORDER(fc))
			printf("Strictly Ordered ");
		if (FC_WEP(fc))
			printf("WEP Encrypted ");
		if (FC_TYPE(fc) != T_CTRL || FC_SUBTYPE(fc) != CTRL_PS_POLL)
			printf("%dus ",
			    EXTRACT_LE_16BITS(
			        &((const struct mgmt_header_t *)p)->duration));
	}
	if (meshdrlen != 0) {
		const struct meshcntl_t *mc =
		    (const struct meshcntl_t *)&p[hdrlen - meshdrlen];
		int ae = mc->flags & 3;

		printf("MeshData (AE %d TTL %u seq %u", ae, mc->ttl,
		    EXTRACT_LE_32BITS(mc->seq));
		if (ae > 0)
			printf(" A4:%s", etheraddr_string(mc->addr4));
		if (ae > 1)
			printf(" A5:%s", etheraddr_string(mc->addr5));
		if (ae > 2)
			printf(" A6:%s", etheraddr_string(mc->addr6));
		printf(") ");
	}

	switch (FC_TYPE(fc)) {
	case T_MGMT:
		mgmt_header_print(p, srcp, dstp);
		break;
	case T_CTRL:
		ctrl_header_print(fc, p, srcp, dstp);
		break;
	case T_DATA:
		data_header_print(fc, p, srcp, dstp);
		break;
	default:
		printf("(header) unknown IEEE802.11 frame type (%d)",
		    FC_TYPE(fc));
		*srcp = NULL;
		*dstp = NULL;
		break;
	}
}
static inline void
ieee_802_11_hdr_print(u_int16_t fc, const u_char *p, const u_int8_t **srcp,
    const u_int8_t **dstp)
{
	if (vflag) {
		if (FC_MORE_DATA(fc))
			printf("More Data ");
		if (FC_MORE_FLAG(fc))
			printf("More Fragments ");
		if (FC_POWER_MGMT(fc))
			printf("Pwr Mgmt ");
		if (FC_RETRY(fc))
			printf("Retry ");
		if (FC_ORDER(fc))
			printf("Strictly Ordered ");
		if (FC_WEP(fc))
			printf("WEP Encrypted ");
		if (FC_TYPE(fc) != T_CTRL || FC_SUBTYPE(fc) != CTRL_PS_POLL)
			printf("%dus ",
			    EXTRACT_LE_16BITS(
			        &((const struct mgmt_header_t *)p)->duration));
	}

	switch (FC_TYPE(fc)) {
	case T_MGMT:
		mgmt_header_print(p, srcp, dstp);
		break;
	case T_CTRL:
		ctrl_header_print(fc, p, srcp, dstp);
		break;
	case T_DATA:
		data_header_print(fc, p, srcp, dstp);
		break;
	default:
		printf("(header) unknown IEEE802.11 frame type (%d)",
		    FC_TYPE(fc));
		*srcp = NULL;
		*dstp = NULL;
		break;
	}
}