--- /dev/null
+/*
+ * WPA Supplicant - roboswitch driver interface
+ * Copyright (c) 2008-2009 Jouke Witteveen
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+#include <sys/ioctl.h>
+#include <linux/if.h>
+#include <linux/sockios.h>
+#include <linux/if_ether.h>
+#include <linux/mii.h>
+
+#include "common.h"
+#include "driver.h"
+#include "l2_packet/l2_packet.h"
+
+#define ROBO_PHY_ADDR 0x1e /* RoboSwitch PHY address */
+
+/* MII access registers */
+#define ROBO_MII_PAGE 0x10 /* MII page register */
+#define ROBO_MII_ADDR 0x11 /* MII address register */
+#define ROBO_MII_DATA_OFFSET 0x18 /* Start of MII data registers */
+
+#define ROBO_MII_PAGE_ENABLE 0x01 /* MII page op code */
+#define ROBO_MII_ADDR_WRITE 0x01 /* MII address write op code */
+#define ROBO_MII_ADDR_READ 0x02 /* MII address read op code */
+#define ROBO_MII_DATA_MAX 4 /* Consecutive MII data registers */
+#define ROBO_MII_RETRY_MAX 10 /* Read attempts before giving up */
+
+/* Page numbers */
+#define ROBO_ARLCTRL_PAGE 0x04 /* ARL control page */
+#define ROBO_VLAN_PAGE 0x34 /* VLAN page */
+
+/* ARL control page registers */
+#define ROBO_ARLCTRL_CONF 0x00 /* ARL configuration register */
+#define ROBO_ARLCTRL_ADDR_1 0x10 /* Multiport address 1 */
+#define ROBO_ARLCTRL_VEC_1 0x16 /* Multiport vector 1 */
+#define ROBO_ARLCTRL_ADDR_2 0x20 /* Multiport address 2 */
+#define ROBO_ARLCTRL_VEC_2 0x26 /* Multiport vector 2 */
+
+/* VLAN page registers */
+#define ROBO_VLAN_ACCESS 0x08 /* VLAN table access register */
+#define ROBO_VLAN_ACCESS_5350 0x06 /* VLAN table access register (5350) */
+#define ROBO_VLAN_READ 0x0c /* VLAN read register */
+#define ROBO_VLAN_MAX 0xff /* Maximum number of VLANs */
+
+
+static const u8 pae_group_addr[ETH_ALEN] =
+{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
+
+
+struct wpa_driver_roboswitch_data {
+ void *ctx;
+ struct l2_packet_data *l2;
+ char ifname[IFNAMSIZ + 1];
+ u8 own_addr[ETH_ALEN];
+ struct ifreq ifr;
+ int fd, is_5350;
+ u16 ports;
+};
+
+
+/* Copied from the kernel-only part of mii.h. */
+static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
+{
+ return (struct mii_ioctl_data *) &rq->ifr_ifru;
+}
+
+
+/*
+ * RoboSwitch uses 16-bit Big Endian addresses.
+ * The ordering of the words is reversed in the MII registers.
+ */
+static void wpa_driver_roboswitch_addr_be16(const u8 addr[ETH_ALEN], u16 *be)
+{
+ int i;
+ for (i = 0; i < ETH_ALEN; i += 2)
+ be[(ETH_ALEN - i) / 2 - 1] = WPA_GET_BE16(addr + i);
+}
+
+
+static u16 wpa_driver_roboswitch_mdio_read(
+ struct wpa_driver_roboswitch_data *drv, u8 reg)
+{
+ struct mii_ioctl_data *mii = if_mii(&drv->ifr);
+
+ mii->phy_id = ROBO_PHY_ADDR;
+ mii->reg_num = reg;
+
+ if (ioctl(drv->fd, SIOCGMIIREG, &drv->ifr) < 0) {
+ perror("ioctl[SIOCGMIIREG]");
+ return 0x00;
+ }
+ return mii->val_out;
+}
+
+
+static void wpa_driver_roboswitch_mdio_write(
+ struct wpa_driver_roboswitch_data *drv, u8 reg, u16 val)
+{
+ struct mii_ioctl_data *mii = if_mii(&drv->ifr);
+
+ mii->phy_id = ROBO_PHY_ADDR;
+ mii->reg_num = reg;
+ mii->val_in = val;
+
+ if (ioctl(drv->fd, SIOCSMIIREG, &drv->ifr) < 0) {
+ perror("ioctl[SIOCSMIIREG");
+ }
+}
+
+
+static int wpa_driver_roboswitch_reg(struct wpa_driver_roboswitch_data *drv,
+ u8 page, u8 reg, u8 op)
+{
+ int i;
+
+ /* set page number */
+ wpa_driver_roboswitch_mdio_write(drv, ROBO_MII_PAGE,
+ (page << 8) | ROBO_MII_PAGE_ENABLE);
+ /* set register address */
+ wpa_driver_roboswitch_mdio_write(drv, ROBO_MII_ADDR, (reg << 8) | op);
+
+ /* check if operation completed */
+ for (i = 0; i < ROBO_MII_RETRY_MAX; ++i) {
+ if ((wpa_driver_roboswitch_mdio_read(drv, ROBO_MII_ADDR) & 3)
+ == 0)
+ return 0;
+ }
+ /* timeout */
+ return -1;
+}
+
+
+static int wpa_driver_roboswitch_read(struct wpa_driver_roboswitch_data *drv,
+ u8 page, u8 reg, u16 *val, int len)
+{
+ int i;
+
+ if (len > ROBO_MII_DATA_MAX ||
+ wpa_driver_roboswitch_reg(drv, page, reg, ROBO_MII_ADDR_READ) < 0)
+ return -1;
+
+ for (i = 0; i < len; ++i) {
+ val[i] = wpa_driver_roboswitch_mdio_read(
+ drv, ROBO_MII_DATA_OFFSET + i);
+ }
+
+ return 0;
+}
+
+
+static int wpa_driver_roboswitch_write(struct wpa_driver_roboswitch_data *drv,
+ u8 page, u8 reg, u16 *val, int len)
+{
+ int i;
+
+ if (len > ROBO_MII_DATA_MAX) return -1;
+ for (i = 0; i < len; ++i) {
+ wpa_driver_roboswitch_mdio_write(drv, ROBO_MII_DATA_OFFSET + i,
+ val[i]);
+ }
+ return wpa_driver_roboswitch_reg(drv, page, reg, ROBO_MII_ADDR_WRITE);
+}
+
+
+static void wpa_driver_roboswitch_receive(void *priv, const u8 *src_addr,
+ const u8 *buf, size_t len)
+{
+ struct wpa_driver_roboswitch_data *drv = priv;
+
+ if (len > 14 && WPA_GET_BE16(buf + 12) == ETH_P_EAPOL &&
+ os_memcmp(buf, drv->own_addr, ETH_ALEN) == 0)
+ drv_event_eapol_rx(drv->ctx, src_addr, buf + 14, len - 14);
+}
+
+
+static int wpa_driver_roboswitch_get_ssid(void *priv, u8 *ssid)
+{
+ ssid[0] = 0;
+ return 0;
+}
+
+
+static int wpa_driver_roboswitch_get_bssid(void *priv, u8 *bssid)
+{
+ /* Report PAE group address as the "BSSID" for wired connection. */
+ os_memcpy(bssid, pae_group_addr, ETH_ALEN);
+ return 0;
+}
+
+
+static int wpa_driver_roboswitch_get_capa(void *priv,
+ struct wpa_driver_capa *capa)
+{
+ os_memset(capa, 0, sizeof(*capa));
+ capa->flags = WPA_DRIVER_FLAGS_WIRED;
+ return 0;
+}
+
+
+static int wpa_driver_roboswitch_set_param(void *priv, const char *param)
+{
+ struct wpa_driver_roboswitch_data *drv = priv;
+ char *sep;
+
+ if (param == NULL || os_strstr(param, "multicast_only=1") == NULL) {
+ sep = drv->ifname + os_strlen(drv->ifname);
+ *sep = '.';
+ drv->l2 = l2_packet_init(drv->ifname, NULL, ETH_P_ALL,
+ wpa_driver_roboswitch_receive, drv,
+ 1);
+ if (drv->l2 == NULL) {
+ wpa_printf(MSG_INFO, "%s: Unable to listen on %s",
+ __func__, drv->ifname);
+ return -1;
+ }
+ *sep = '\0';
+ l2_packet_get_own_addr(drv->l2, drv->own_addr);
+ } else {
+ wpa_printf(MSG_DEBUG, "%s: Ignoring unicast frames", __func__);
+ drv->l2 = NULL;
+ }
+ return 0;
+}
+
+
+static const char * wpa_driver_roboswitch_get_ifname(void *priv)
+{
+ struct wpa_driver_roboswitch_data *drv = priv;
+ return drv->ifname;
+}
+
+
+static int wpa_driver_roboswitch_join(struct wpa_driver_roboswitch_data *drv,
+ u16 ports, const u8 *addr)
+{
+ u16 read1[3], read2[3], addr_be16[3];
+
+ wpa_driver_roboswitch_addr_be16(addr, addr_be16);
+
+ if (wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_CONF, read1, 1) < 0)
+ return -1;
+ if (!(read1[0] & (1 << 4))) {
+ /* multiport addresses are not yet enabled */
+ read1[0] |= 1 << 4;
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_1, addr_be16, 3);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_1, &ports, 1);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_2, addr_be16, 3);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_2, &ports, 1);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_CONF, read1, 1);
+ } else {
+ /* if both multiport addresses are the same we can add */
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_1, read1, 3);
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_2, read2, 3);
+ if (os_memcmp(read1, read2, 6) != 0)
+ return -1;
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_1, read1, 1);
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_2, read2, 1);
+ if (read1[0] != read2[0])
+ return -1;
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_1, addr_be16, 3);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_1, &ports, 1);
+ }
+ return 0;
+}
+
+
+static int wpa_driver_roboswitch_leave(struct wpa_driver_roboswitch_data *drv,
+ u16 ports, const u8 *addr)
+{
+ u16 _read, addr_be16[3], addr_read[3], ports_read;
+
+ wpa_driver_roboswitch_addr_be16(addr, addr_be16);
+
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_CONF,
+ &_read, 1);
+ /* If ARL control is disabled, there is nothing to leave. */
+ if (!(_read & (1 << 4))) return -1;
+
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_1, addr_read, 3);
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_1,
+ &ports_read, 1);
+ /* check if we occupy multiport address 1 */
+ if (os_memcmp(addr_read, addr_be16, 6) == 0 && ports_read == ports) {
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_2, addr_read, 3);
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_2, &ports_read, 1);
+ /* and multiport address 2 */
+ if (os_memcmp(addr_read, addr_be16, 6) == 0 &&
+ ports_read == ports) {
+ _read &= ~(1 << 4);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_CONF, &_read,
+ 1);
+ } else {
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_1,
+ addr_read, 3);
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_1,
+ &ports_read, 1);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_2,
+ addr_read, 3);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_2,
+ &ports_read, 1);
+ }
+ } else {
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_2, addr_read, 3);
+ wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_2, &ports_read, 1);
+ /* or multiport address 2 */
+ if (os_memcmp(addr_read, addr_be16, 6) == 0 &&
+ ports_read == ports) {
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_ADDR_1,
+ addr_read, 3);
+ wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
+ ROBO_ARLCTRL_VEC_1,
+ &ports_read, 1);
+ } else return -1;
+ }
+ return 0;
+}
+
+
+static void * wpa_driver_roboswitch_init(void *ctx, const char *ifname)
+{
+ struct wpa_driver_roboswitch_data *drv;
+ char *sep;
+ u16 vlan = 0, _read[2];
+
+ drv = os_zalloc(sizeof(*drv));
+ if (drv == NULL) return NULL;
+ drv->ctx = ctx;
+ drv->own_addr[0] = '\0';
+
+ /* copy ifname and take a pointer to the second to last character */
+ sep = drv->ifname +
+ os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname)) - 2;
+ /* find the '.' seperating <interface> and <vlan> */
+ while (sep > drv->ifname && *sep != '.') sep--;
+ if (sep <= drv->ifname) {
+ wpa_printf(MSG_INFO, "%s: No <interface>.<vlan> pair in "
+ "interface name %s", __func__, drv->ifname);
+ os_free(drv);
+ return NULL;
+ }
+ *sep = '\0';
+ while (*++sep) {
+ if (*sep < '0' || *sep > '9') {
+ wpa_printf(MSG_INFO, "%s: Invalid vlan specification "
+ "in interface name %s", __func__, ifname);
+ os_free(drv);
+ return NULL;
+ }
+ vlan *= 10;
+ vlan += *sep - '0';
+ if (vlan > ROBO_VLAN_MAX) {
+ wpa_printf(MSG_INFO, "%s: VLAN out of range in "
+ "interface name %s", __func__, ifname);
+ os_free(drv);
+ return NULL;
+ }
+ }
+
+ drv->fd = socket(PF_INET, SOCK_DGRAM, 0);
+ if (drv->fd < 0) {
+ wpa_printf(MSG_INFO, "%s: Unable to create socket", __func__);
+ os_free(drv);
+ return NULL;
+ }
+
+ os_memset(&drv->ifr, 0, sizeof(drv->ifr));
+ os_strlcpy(drv->ifr.ifr_name, drv->ifname, IFNAMSIZ);
+ if (ioctl(drv->fd, SIOCGMIIPHY, &drv->ifr) < 0) {
+ perror("ioctl[SIOCGMIIPHY]");
+ os_free(drv);
+ return NULL;
+ }
+ if (if_mii(&drv->ifr)->phy_id != ROBO_PHY_ADDR) {
+ wpa_printf(MSG_INFO, "%s: Invalid phy address (not a "
+ "RoboSwitch?)", __func__);
+ os_free(drv);
+ return NULL;
+ }
+
+ /* set and read back to see if the register can be used */
+ _read[0] = ROBO_VLAN_MAX;
+ wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE, ROBO_VLAN_ACCESS_5350,
+ _read, 1);
+ wpa_driver_roboswitch_read(drv, ROBO_VLAN_PAGE, ROBO_VLAN_ACCESS_5350,
+ _read + 1, 1);
+ drv->is_5350 = _read[0] == _read[1];
+
+ /* set the read bit */
+ vlan |= 1 << 13;
+ wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE,
+ drv->is_5350 ? ROBO_VLAN_ACCESS_5350
+ : ROBO_VLAN_ACCESS,
+ &vlan, 1);
+ wpa_driver_roboswitch_read(drv, ROBO_VLAN_PAGE, ROBO_VLAN_READ, _read,
+ drv->is_5350 ? 2 : 1);
+ if (!(drv->is_5350 ? _read[1] & (1 << 4) : _read[0] & (1 << 14))) {
+ wpa_printf(MSG_INFO, "%s: Could not get port information for "
+ "VLAN %d", __func__, vlan & ~(1 << 13));
+ os_free(drv);
+ return NULL;
+ }
+ drv->ports = _read[0] & 0x001F;
+ /* add the MII port */
+ drv->ports |= 1 << 8;
+ if (wpa_driver_roboswitch_join(drv, drv->ports, pae_group_addr) < 0) {
+ wpa_printf(MSG_INFO, "%s: Unable to join PAE group", __func__);
+ os_free(drv);
+ return NULL;
+ } else {
+ wpa_printf(MSG_DEBUG, "%s: Added PAE group address to "
+ "RoboSwitch ARL", __func__);
+ }
+
+ return drv;
+}
+
+
+static void wpa_driver_roboswitch_deinit(void *priv)
+{
+ struct wpa_driver_roboswitch_data *drv = priv;
+
+ if (drv->l2) {
+ l2_packet_deinit(drv->l2);
+ drv->l2 = NULL;
+ }
+ if (wpa_driver_roboswitch_leave(drv, drv->ports, pae_group_addr) < 0) {
+ wpa_printf(MSG_DEBUG, "%s: Unable to leave PAE group",
+ __func__);
+ }
+
+ close(drv->fd);
+ os_free(drv);
+}
+
+
+const struct wpa_driver_ops wpa_driver_roboswitch_ops = {
+ .name = "roboswitch",
+ .desc = "wpa_supplicant roboswitch driver",
+ .get_ssid = wpa_driver_roboswitch_get_ssid,
+ .get_bssid = wpa_driver_roboswitch_get_bssid,
+ .get_capa = wpa_driver_roboswitch_get_capa,
+ .init = wpa_driver_roboswitch_init,
+ .deinit = wpa_driver_roboswitch_deinit,
+ .set_param = wpa_driver_roboswitch_set_param,
+ .get_ifname = wpa_driver_roboswitch_get_ifname,
+};
projects / mech_eap.orig / blobdiff