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📄 accounting.c(14.53 KB)
📄 accounting.h(1.12 KB)
📄 acs.c(29.71 KB)
📄 acs.h(764 B)
📄 airtime_policy.c(6.82 KB)
📄 airtime_policy.h(1.27 KB)
📄 ap_config.c(33.39 KB)
📄 ap_config.h(26.53 KB)
📄 ap_drv_ops.c(25.84 KB)
📄 ap_drv_ops.h(13.38 KB)
📄 ap_list.c(6.82 KB)
📄 ap_list.h(1.5 KB)
📄 ap_mlme.c(5.64 KB)
📄 ap_mlme.h(1007 B)
📄 authsrv.c(8.72 KB)
📄 authsrv.h(352 B)
📄 beacon.c(40.32 KB)
📄 beacon.h(1.25 KB)
📄 bss_load.c(2.4 KB)
📄 bss_load.h(376 B)
📄 ctrl_iface_ap.c(24.3 KB)
📄 ctrl_iface_ap.h(1.61 KB)
📄 dfs.c(29.35 KB)
📄 dfs.h(1.22 KB)
📄 dhcp_snoop.c(3.36 KB)
📄 dhcp_snoop.h(590 B)
📄 dpp_hostapd.c(48.28 KB)
📄 dpp_hostapd.h(1.74 KB)
📄 drv_callbacks.c(51.68 KB)
📄 eap_user_db.c(7.92 KB)
📄 eth_p_oui.c(4.44 KB)
📄 eth_p_oui.h(958 B)
📄 fils_hlp.c(16.82 KB)
📄 fils_hlp.h(547 B)
📄 gas_query_ap.c(19.53 KB)
📄 gas_query_ap.h(1.24 KB)
📄 gas_serv.c(50.48 KB)
📄 gas_serv.h(3.38 KB)
📄 hostapd.c(89.58 KB)
📄 hostapd.h(17.99 KB)
📄 hs20.c(6.27 KB)
📄 hs20.h(843 B)
📄 hw_features.c(24.77 KB)
📄 hw_features.h(1.93 KB)
📄 iapp.c(14.59 KB)
📄 iapp.h(833 B)
📄 ieee802_11.c(148.71 KB)
📄 ieee802_11.h(7.97 KB)
📄 ieee802_11_auth.c(18.3 KB)
📄 ieee802_11_auth.h(1.04 KB)
📄 ieee802_11_he.c(8.77 KB)
📄 ieee802_11_ht.c(16.22 KB)
📄 ieee802_11_shared.c(23.95 KB)
📄 ieee802_11_vht.c(13.4 KB)
📄 ieee802_1x.c(83.16 KB)
📄 ieee802_1x.h(2.84 KB)
📄 mbo_ap.c(5.22 KB)
📄 mbo_ap.h(1.16 KB)
📄 ndisc_snoop.c(4.3 KB)
📄 ndisc_snoop.h(838 B)
📄 neighbor_db.c(6.49 KB)
📄 neighbor_db.h(940 B)
📄 p2p_hostapd.c(2.57 KB)
📄 p2p_hostapd.h(888 B)
📄 pmksa_cache_auth.c(18.79 KB)
📄 pmksa_cache_auth.h(2.69 KB)
📄 preauth_auth.c(6.47 KB)
📄 preauth_auth.h(1.26 KB)
📄 rrm.c(17.27 KB)
📄 rrm.h(1.21 KB)
📄 sta_info.c(41.42 KB)
📄 sta_info.h(11.63 KB)
📄 taxonomy.c(7.45 KB)
📄 taxonomy.h(766 B)
📄 tkip_countermeasures.c(2.95 KB)
📄 tkip_countermeasures.h(451 B)
📄 utils.c(2.29 KB)
📄 vlan.c(756 B)
📄 vlan.h(727 B)
📄 vlan_full.c(18.35 KB)
📄 vlan_ifconfig.c(1.47 KB)
📄 vlan_init.c(5.88 KB)
📄 vlan_init.h(1.09 KB)
📄 vlan_ioctl.c(3.75 KB)
📄 vlan_util.c(3.9 KB)
📄 vlan_util.h(980 B)
📄 wmm.c(11.47 KB)
📄 wmm.h(653 B)
📄 wnm_ap.c(23.69 KB)
📄 wnm_ap.h(1.08 KB)
📄 wpa_auth.c(140.03 KB)
📄 wpa_auth.h(17.89 KB)
📄 wpa_auth_ft.c(120.89 KB)
📄 wpa_auth_glue.c(35.42 KB)
📄 wpa_auth_glue.h(443 B)
📄 wpa_auth_i.h(8.47 KB)
📄 wpa_auth_ie.c(32.38 KB)
📄 wpa_auth_ie.h(1.14 KB)
📄 wpa_auth_kay.c(12.26 KB)
📄 wpa_auth_kay.h(1.15 KB)
📄 wps_hostapd.c(54.66 KB)
📄 wps_hostapd.h(2.79 KB)
📄 x_snoop.c(3.21 KB)
📄 x_snoop.h(1.29 KB)

Editing: eth_p_oui.c

/*
 * hostapd / IEEE 802 OUI Extended EtherType 88-B7
 * Copyright (c) 2016, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "utils/includes.h"

#include "utils/common.h"
#include "utils/eloop.h"
#include "l2_packet/l2_packet.h"
#include "hostapd.h"
#include "eth_p_oui.h"

/*
 * See IEEE Std 802-2014, Clause 9.2.4 for the definition of the OUI Extended
 * EtherType 88-B7. This file implements this with OUI 00:13:74 and
 * vendor-specific subtype 0x0001.
 */
static const u8 global_oui[] = { 0x00, 0x13, 0x74, 0x00, 0x01 };

struct eth_p_oui_iface {
	struct dl_list list;
	char ifname[IFNAMSIZ + 1];
	struct l2_packet_data *l2;
	struct dl_list receiver;
};

struct eth_p_oui_ctx {
	struct dl_list list;
	struct eth_p_oui_iface *iface;
	/* all data needed to deliver and unregister */
	u8 oui_suffix; /* last byte of OUI */
	void (*rx_callback)(void *ctx, const u8 *src_addr,
			    const u8 *dst_addr, u8 oui_suffix,
			    const u8 *buf, size_t len);
	void *rx_callback_ctx;
};

void eth_p_oui_deliver(struct eth_p_oui_ctx *ctx, const u8 *src_addr,
		       const u8 *dst_addr, const u8 *buf, size_t len)
{
	ctx->rx_callback(ctx->rx_callback_ctx, src_addr, dst_addr,
			 ctx->oui_suffix, buf, len);
}

static void eth_p_rx(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
{
	struct eth_p_oui_iface *iface = ctx;
	struct eth_p_oui_ctx *receiver;
	const struct l2_ethhdr *ethhdr;

if (len < sizeof(*ethhdr) + sizeof(global_oui) + 1) {
		/* too short packet */
		return;
	}

ethhdr = (struct l2_ethhdr *) buf;
	/* trim eth_hdr from buf and len */
	buf += sizeof(*ethhdr);
	len -= sizeof(*ethhdr);

/* verify OUI and vendor-specific subtype match */
	if (os_memcmp(buf, global_oui, sizeof(global_oui)) != 0)
		return;
	buf += sizeof(global_oui);
	len -= sizeof(global_oui);

dl_list_for_each(receiver, &iface->receiver,
			 struct eth_p_oui_ctx, list) {
		if (buf[0] != receiver->oui_suffix)
			continue;

eth_p_oui_deliver(receiver, ethhdr->h_source, ethhdr->h_dest,
				  buf + 1, len - 1);
	}
}

struct eth_p_oui_ctx *
eth_p_oui_register(struct hostapd_data *hapd, const char *ifname, u8 oui_suffix,
		   void (*rx_callback)(void *ctx, const u8 *src_addr,
				       const u8 *dst_addr, u8 oui_suffix,
				       const u8 *buf, size_t len),
		   void *rx_callback_ctx)
{
	struct eth_p_oui_iface *iface;
	struct eth_p_oui_ctx *receiver;
	int found = 0;
	struct hapd_interfaces *interfaces;

receiver = os_zalloc(sizeof(*receiver));
	if (!receiver)
		goto err;

receiver->oui_suffix = oui_suffix;
	receiver->rx_callback = rx_callback;
	receiver->rx_callback_ctx = rx_callback_ctx;

interfaces = hapd->iface->interfaces;

dl_list_for_each(iface, &interfaces->eth_p_oui, struct eth_p_oui_iface,
			 list) {
		if (os_strcmp(iface->ifname, ifname) != 0)
			continue;
		found = 1;
		break;
	}

if (!found) {
		iface = os_zalloc(sizeof(*iface));
		if (!iface)
			goto err;

os_strlcpy(iface->ifname, ifname, sizeof(iface->ifname));
		iface->l2 = l2_packet_init(ifname, NULL, ETH_P_OUI, eth_p_rx,
					   iface, 1);
		if (!iface->l2) {
			os_free(iface);
			goto err;
		}
		dl_list_init(&iface->receiver);

dl_list_add_tail(&interfaces->eth_p_oui, &iface->list);
	}

dl_list_add_tail(&iface->receiver, &receiver->list);
	receiver->iface = iface;

return receiver;
err:
	os_free(receiver);
	return NULL;
}

void eth_p_oui_unregister(struct eth_p_oui_ctx *ctx)
{
	struct eth_p_oui_iface *iface;

if (!ctx)
		return;

iface = ctx->iface;

dl_list_del(&ctx->list);
	os_free(ctx);

if (dl_list_empty(&iface->receiver)) {
		dl_list_del(&iface->list);
		l2_packet_deinit(iface->l2);
		os_free(iface);
	}
}

int eth_p_oui_send(struct eth_p_oui_ctx *ctx, const u8 *src_addr,
		   const u8 *dst_addr, const u8 *buf, size_t len)
{
	struct eth_p_oui_iface *iface = ctx->iface;
	u8 *packet, *p;
	size_t packet_len;
	int ret;
	struct l2_ethhdr *ethhdr;

packet_len = sizeof(*ethhdr) + sizeof(global_oui) + 1 + len;
	packet = os_zalloc(packet_len);
	if (!packet)
		return -1;
	p = packet;

ethhdr = (struct l2_ethhdr *) packet;
	os_memcpy(ethhdr->h_source, src_addr, ETH_ALEN);
	os_memcpy(ethhdr->h_dest, dst_addr, ETH_ALEN);
	ethhdr->h_proto = host_to_be16(ETH_P_OUI);
	p += sizeof(*ethhdr);

os_memcpy(p, global_oui, sizeof(global_oui));
	p[sizeof(global_oui)] = ctx->oui_suffix;
	p += sizeof(global_oui) + 1;

os_memcpy(p, buf, len);

ret = l2_packet_send(iface->l2, NULL, 0, packet, packet_len);
	os_free(packet);
	return ret;
}

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Editing: eth_p_oui.c

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