* Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi>
* Copyright (c) 2004, Gunter Burchardt <tira@isx.de>
* Copyright (c) 2013-2014, Qualcomm Atheros, Inc.
+ * Copyright (c) 2019, The Linux Foundation
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#include "utils/eloop.h"
#include "common/defs.h"
#include "common/ieee802_1x_defs.h"
+#include "common/eapol_common.h"
#include "pae/ieee802_1x_kay.h"
#include "driver.h"
#include "driver_wired_common.h"
struct macsec_qca_data {
struct driver_wired_common_data common;
+ int use_pae_group_addr;
u32 secy_id;
/* shadow */
}
+#ifdef __linux__
+
+static void macsec_qca_handle_data(void *ctx, unsigned char *buf, size_t len)
+{
+#ifdef HOSTAPD
+ struct ieee8023_hdr *hdr;
+ u8 *pos, *sa;
+ size_t left;
+ union wpa_event_data event;
+
+ /* at least 6 bytes src macaddress, 6 bytes dst macaddress
+ * and 2 bytes ethertype
+ */
+ if (len < 14) {
+ wpa_printf(MSG_MSGDUMP,
+ "macsec_qca_handle_data: too short (%lu)",
+ (unsigned long) len);
+ return;
+ }
+ hdr = (struct ieee8023_hdr *) buf;
+
+ switch (ntohs(hdr->ethertype)) {
+ case ETH_P_PAE:
+ wpa_printf(MSG_MSGDUMP, "Received EAPOL packet");
+ sa = hdr->src;
+ os_memset(&event, 0, sizeof(event));
+ event.new_sta.addr = sa;
+ wpa_supplicant_event(ctx, EVENT_NEW_STA, &event);
+
+ pos = (u8 *) (hdr + 1);
+ left = len - sizeof(*hdr);
+ drv_event_eapol_rx(ctx, sa, pos, left);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "Unknown ethertype 0x%04x in data frame",
+ ntohs(hdr->ethertype));
+ break;
+ }
+#endif /* HOSTAPD */
+}
+
+
+static void macsec_qca_handle_read(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ int len;
+ unsigned char buf[3000];
+
+ len = recv(sock, buf, sizeof(buf), 0);
+ if (len < 0) {
+ wpa_printf(MSG_ERROR, "macsec_qca: recv: %s", strerror(errno));
+ return;
+ }
+
+ macsec_qca_handle_data(eloop_ctx, buf, len);
+}
+
+#endif /* __linux__ */
+
+
+static int macsec_qca_init_sockets(struct macsec_qca_data *drv, u8 *own_addr)
+{
+#ifdef __linux__
+ struct ifreq ifr;
+ struct sockaddr_ll addr;
+
+ drv->common.sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_PAE));
+ if (drv->common.sock < 0) {
+ wpa_printf(MSG_ERROR, "socket[PF_PACKET,SOCK_RAW]: %s",
+ strerror(errno));
+ return -1;
+ }
+
+ if (eloop_register_read_sock(drv->common.sock, macsec_qca_handle_read,
+ drv->common.ctx, NULL)) {
+ wpa_printf(MSG_INFO, "Could not register read socket");
+ return -1;
+ }
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, drv->common.ifname, sizeof(ifr.ifr_name));
+ if (ioctl(drv->common.sock, SIOCGIFINDEX, &ifr) != 0) {
+ wpa_printf(MSG_ERROR, "ioctl(SIOCGIFINDEX): %s",
+ strerror(errno));
+ return -1;
+ }
+
+ os_memset(&addr, 0, sizeof(addr));
+ addr.sll_family = AF_PACKET;
+ addr.sll_ifindex = ifr.ifr_ifindex;
+ wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
+ addr.sll_ifindex);
+
+ if (bind(drv->common.sock, (struct sockaddr *) &addr,
+ sizeof(addr)) < 0) {
+ wpa_printf(MSG_ERROR, "macsec_qca: bind: %s", strerror(errno));
+ return -1;
+ }
+
+ /* filter multicast address */
+ if (wired_multicast_membership(drv->common.sock, ifr.ifr_ifindex,
+ pae_group_addr, 1) < 0) {
+ wpa_printf(MSG_ERROR,
+ "macsec_qca_init_sockets: Failed to add multicast group membership");
+ return -1;
+ }
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, drv->common.ifname, sizeof(ifr.ifr_name));
+ if (ioctl(drv->common.sock, SIOCGIFHWADDR, &ifr) != 0) {
+ wpa_printf(MSG_ERROR, "ioctl(SIOCGIFHWADDR): %s",
+ strerror(errno));
+ return -1;
+ }
+
+ if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
+ wpa_printf(MSG_INFO, "Invalid HW-addr family 0x%04x",
+ ifr.ifr_hwaddr.sa_family);
+ return -1;
+ }
+ os_memcpy(own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
+
+ return 0;
+#else /* __linux__ */
+ return -1;
+#endif /* __linux__ */
+}
+
+
static void * macsec_qca_init(void *ctx, const char *ifname)
{
struct macsec_qca_data *drv;
}
+static void * macsec_qca_hapd_init(struct hostapd_data *hapd,
+ struct wpa_init_params *params)
+{
+ struct macsec_qca_data *drv;
+
+ drv = os_zalloc(sizeof(struct macsec_qca_data));
+ if (!drv) {
+ wpa_printf(MSG_INFO,
+ "Could not allocate memory for macsec_qca driver data");
+ return NULL;
+ }
+
+ /* Board specific settings */
+ if (os_memcmp("eth2", params->ifname, 4) == 0)
+ drv->secy_id = 1;
+ else if (os_memcmp("eth3", params->ifname, 4) == 0)
+ drv->secy_id = 2;
+ else if (os_memcmp("eth4", params->ifname, 4) == 0)
+ drv->secy_id = 0;
+ else if (os_memcmp("eth5", params->ifname, 4) == 0)
+ drv->secy_id = 1;
+ else
+ drv->secy_id = -1;
+
+ drv->common.ctx = hapd;
+ os_strlcpy(drv->common.ifname, params->ifname,
+ sizeof(drv->common.ifname));
+ drv->use_pae_group_addr = params->use_pae_group_addr;
+
+ if (macsec_qca_init_sockets(drv, params->own_addr)) {
+ os_free(drv);
+ return NULL;
+ }
+
+ return drv;
+}
+
+
+static void macsec_qca_hapd_deinit(void *priv)
+{
+ struct macsec_qca_data *drv = priv;
+
+ if (drv->common.sock >= 0) {
+ eloop_unregister_read_sock(drv->common.sock);
+ close(drv->common.sock);
+ }
+
+ os_free(drv);
+}
+
+
+static int macsec_qca_send_eapol(void *priv, const u8 *addr,
+ const u8 *data, size_t data_len, int encrypt,
+ const u8 *own_addr, u32 flags)
+{
+ struct macsec_qca_data *drv = priv;
+ struct ieee8023_hdr *hdr;
+ size_t len;
+ u8 *pos;
+ int res;
+
+ len = sizeof(*hdr) + data_len;
+ hdr = os_zalloc(len);
+ if (!hdr) {
+ wpa_printf(MSG_INFO,
+ "malloc() failed for macsec_qca_send_eapol(len=%lu)",
+ (unsigned long) len);
+ return -1;
+ }
+
+ os_memcpy(hdr->dest, drv->use_pae_group_addr ? pae_group_addr : addr,
+ ETH_ALEN);
+ os_memcpy(hdr->src, own_addr, ETH_ALEN);
+ hdr->ethertype = htons(ETH_P_PAE);
+
+ pos = (u8 *) (hdr + 1);
+ os_memcpy(pos, data, data_len);
+
+ res = send(drv->common.sock, (u8 *) hdr, len, 0);
+ os_free(hdr);
+
+ if (res < 0) {
+ wpa_printf(MSG_ERROR,
+ "macsec_qca_send_eapol - packet len: %lu - failed: send: %s",
+ (unsigned long) len, strerror(errno));
+ }
+
+ return res;
+}
+
+
static int macsec_qca_macsec_init(void *priv, struct macsec_init_params *params)
{
struct macsec_qca_data *drv = priv;
.get_capa = driver_wired_get_capa,
.init = macsec_qca_init,
.deinit = macsec_qca_deinit,
+ .hapd_init = macsec_qca_hapd_init,
+ .hapd_deinit = macsec_qca_hapd_deinit,
+ .hapd_send_eapol = macsec_qca_send_eapol,
.macsec_init = macsec_qca_macsec_init,
.macsec_deinit = macsec_qca_macsec_deinit,
projects / thirdparty / hostap.git / commitdiff
