+++ /dev/null
-/*
- * WPA Supplicant - roboswitch driver interface
- * Copyright (c) 2008-2012 Jouke Witteveen
- *
- * This software may be distributed under the terms of the BSD license.
- * See README for more details.
- */
-
-#include "includes.h"
-#include <sys/ioctl.h>
-#include <linux/sockios.h>
-#include <linux/if_ether.h>
-#include <linux/mii.h>
-#include <net/if.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) {
- wpa_printf(MSG_ERROR, "ioctl[SIOCGMIIREG]: %s",
- strerror(errno));
- 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) {
- wpa_printf(MSG_ERROR, "ioctl[SIOCSMIIREG]: %s",
- strerror(errno));
- }
-}
-
-
-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 */
- if (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) ||
- os_memcmp(read1, read2, 6) != 0)
- return -1;
- if (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) ||
- 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 '.' separating <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) {
- wpa_printf(MSG_ERROR, "ioctl[SIOCGMIIPHY]: %s",
- strerror(errno));
- os_free(drv);
- return NULL;
- }
- /* BCM63xx devices provide 0 here */
- if (if_mii(&drv->ifr)->phy_id != ROBO_PHY_ADDR &&
- if_mii(&drv->ifr)->phy_id != 0) {
- 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.git / blobdiff