General revision of RoboSwitch driver
Attached is a patch for the RoboSwitch driver in trunk. It is a general revision of the source code. Changes: - Improved IEEE 802.1X conformance ([1]) - Better conformity to Broadcom specifications - Fixed compatibility with different chipset revisions It is worth noting that performance may drop a little using the new driver. This can be overcome by using "multicast_only=1" as a parameter. In that case only packets to the PAE group address are regarded, as the previous revision of the driver did. A more detailed description of the parameter and it's consequences is available at [2] (summary: use "multicast_only=1" whenever possible). [1] http://lists.shmoo.com/pipermail/hostap/2009-February/019398.html [2] http://forum.openwrt.org/viewtopic.php?id=19873
This commit is contained in:
parent
da1fb17ca7
commit
077ed46d2b
1 changed files with 178 additions and 146 deletions
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@ -16,12 +16,18 @@
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#include <sys/ioctl.h>
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#include <linux/if.h>
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#include <linux/sockios.h>
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#include <linux/if_ether.h>
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#include <linux/mii.h>
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#include "common.h"
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#include "driver.h"
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#include "l2_packet/l2_packet.h"
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#define ROBO_PHY_ADDR 0x1E /* RoboSwitch PHY address */
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#ifndef ETH_P_EAPOL
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#define ETH_P_EAPOL 0x888e
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#endif
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#define ROBO_PHY_ADDR 0x1e /* RoboSwitch PHY address */
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/* MII access registers */
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#define ROBO_MII_PAGE 0x10 /* MII page register */
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@ -46,10 +52,10 @@
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#define ROBO_ARLCTRL_VEC_2 0x26 /* Multiport vector 2 */
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/* VLAN page registers */
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#define ROBO_VLAN_ACCESS 0x06 /* VLAN table Access register */
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#define ROBO_VLAN_ACCESS_5365 0x08 /* VLAN table Access register (5365) */
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#define ROBO_VLAN_READ 0x0C /* VLAN read register */
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#define ROBO_VLAN_MAX 0xFF /* Maximum number of VLANs */
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#define ROBO_VLAN_ACCESS 0x08 /* VLAN table access register */
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#define ROBO_VLAN_ACCESS_5350 0x06 /* VLAN table access register (5350) */
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#define ROBO_VLAN_READ 0x0c /* VLAN read register */
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#define ROBO_VLAN_MAX 0xff /* Maximum number of VLANs */
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static const u8 pae_group_addr[ETH_ALEN] =
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@ -58,9 +64,11 @@ static const u8 pae_group_addr[ETH_ALEN] =
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struct wpa_driver_roboswitch_data {
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void *ctx;
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struct l2_packet_data *l2;
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char ifname[IFNAMSIZ + 1];
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u8 own_addr[ETH_ALEN];
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struct ifreq ifr;
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int fd;
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int fd, is_5350;
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u16 ports;
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};
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@ -72,6 +80,18 @@ static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
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}
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/*
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* RoboSwitch uses 16-bit Big Endian addresses.
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* The ordering of the words is reversed in the MII registers.
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*/
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static void wpa_driver_roboswitch_addr_be16(const u8 addr[ETH_ALEN], u16 *be)
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{
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int i;
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for (i = 0; i < ETH_ALEN; i += 2)
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be[(ETH_ALEN - i) / 2 - 1] = WPA_GET_BE16(addr + i);
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}
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static u16 wpa_driver_roboswitch_mdio_read(
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struct wpa_driver_roboswitch_data *drv, u8 reg)
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{
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@ -157,6 +177,19 @@ static int wpa_driver_roboswitch_write(struct wpa_driver_roboswitch_data *drv,
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}
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static void wpa_driver_roboswitch_receive(void *priv, const u8 *src_addr,
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const u8 *buf, size_t len)
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{
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struct wpa_driver_roboswitch_data *drv = priv;
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if (len > 14 && WPA_GET_BE16(buf + 12) == ETH_P_EAPOL &&
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os_memcmp(buf, drv->own_addr, ETH_ALEN) == 0) {
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wpa_supplicant_rx_eapol(drv->ctx, src_addr, buf + 14,
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len - 14);
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}
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}
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static int wpa_driver_roboswitch_get_ssid(void *priv, u8 *ssid)
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{
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ssid[0] = 0;
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@ -181,6 +214,32 @@ static int wpa_driver_roboswitch_get_capa(void *priv,
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}
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static int wpa_driver_roboswitch_set_param(void *priv, const char *param)
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{
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struct wpa_driver_roboswitch_data *drv = priv;
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char *sep;
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if (param == NULL || os_strstr(param, "multicast_only=1") == NULL) {
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sep = drv->ifname + os_strlen(drv->ifname);
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*sep = '.';
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drv->l2 = l2_packet_init(drv->ifname, NULL, ETH_P_ALL,
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wpa_driver_roboswitch_receive, drv,
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1);
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if (drv->l2 == NULL) {
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wpa_printf(MSG_INFO, "%s: Unable to listen on %s",
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__func__, drv->ifname);
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return -1;
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}
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*sep = '\0';
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l2_packet_get_own_addr(drv->l2, drv->own_addr);
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} else {
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wpa_printf(MSG_DEBUG, "%s: Ignoring unicast frames", __func__);
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drv->l2 = NULL;
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}
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return 0;
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}
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static const char * wpa_driver_roboswitch_get_ifname(void *priv)
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{
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struct wpa_driver_roboswitch_data *drv = priv;
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@ -189,137 +248,109 @@ static const char * wpa_driver_roboswitch_get_ifname(void *priv)
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static int wpa_driver_roboswitch_join(struct wpa_driver_roboswitch_data *drv,
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const u8 *addr)
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u16 ports, const u8 *addr)
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{
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int i;
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u16 _read, zero = 0;
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/* For reasons of simplicity we assume ETH_ALEN is even. */
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u16 addr_word[ETH_ALEN / 2];
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/* RoboSwitch uses 16-bit Big Endian addresses. */
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/* The ordering of the words is reversed in the MII registers. */
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for (i = 0; i < ETH_ALEN; i += 2)
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addr_word[(ETH_ALEN - i) / 2 - 1] = WPA_GET_BE16(addr + i);
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u16 read1[3], read2[3], addr_be16[3];
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wpa_driver_roboswitch_addr_be16(addr, addr_be16);
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/* check if multiport addresses are not yet enabled */
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if (wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_CONF, &_read, 1) < 0)
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ROBO_ARLCTRL_CONF, read1, 1) < 0)
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return -1;
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if (!(_read & (1 << 4))) {
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_read |= 1 << 4;
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if (!(read1[0] & (1 << 4))) {
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/* multiport addresses are not yet enabled */
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read1[0] |= 1 << 4;
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, addr_word, 3);
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ROBO_ARLCTRL_ADDR_1, addr_be16, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1, &drv->ports,
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1);
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ROBO_ARLCTRL_VEC_1, &ports, 1);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, &zero, 1);
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ROBO_ARLCTRL_ADDR_2, addr_be16, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_CONF, &_read, 1);
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return 0;
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ROBO_ARLCTRL_VEC_2, &ports, 1);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_CONF, read1, 1);
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} else {
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/* if both multiport addresses are the same we can add */
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, read1, 3);
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_2, read2, 3);
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if (os_memcmp(read1, read2, 6) != 0)
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return -1;
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1, read1, 1);
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, read2, 1);
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if (read1[0] != read2[0])
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return -1;
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, addr_be16, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1, &ports, 1);
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}
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/* check if multiport address 1 is free */
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_1,
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&_read, 1);
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if (_read == 0) {
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, addr_word, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1, &drv->ports,
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1);
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return 0;
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}
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/* check if multiport address 2 is free */
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_2,
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&_read, 1);
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if (_read == 0) {
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_2, addr_word, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, &drv->ports,
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1);
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return 0;
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}
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/* out of free multiport addresses */
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return -1;
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return 0;
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}
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static int wpa_driver_roboswitch_leave(struct wpa_driver_roboswitch_data *drv,
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const u8 *addr)
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u16 ports, const u8 *addr)
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{
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int i;
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u16 _read[3], zero = 0;
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u16 addr_word[ETH_ALEN / 2]; /* same as at join */
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u16 _read, addr_be16[3], addr_read[3], ports_read;
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for (i = 0; i < ETH_ALEN; i += 2)
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addr_word[(ETH_ALEN - i) / 2 - 1] = WPA_GET_BE16(addr + i);
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wpa_driver_roboswitch_addr_be16(addr, addr_be16);
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/* check if multiport address 1 was used */
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_CONF,
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&_read, 1);
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/* If ARL control is disabled, there is nothing to leave. */
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if (!(_read & (1 << 4))) return -1;
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, addr_read, 3);
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_1,
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_read, 1);
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if (_read[0] == drv->ports) {
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&ports_read, 1);
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/* check if we occupy multiport address 1 */
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if (os_memcmp(addr_read, addr_be16, 6) == 0 && ports_read == ports) {
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, _read, 3);
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if (os_memcmp(_read, addr_word, 6) == 0) {
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1, &zero,
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1);
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goto clean_up;
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}
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}
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/* check if multiport address 2 was used */
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_2,
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_read, 1);
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if (_read[0] == drv->ports) {
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ROBO_ARLCTRL_ADDR_2, addr_read, 3);
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_2, _read, 3);
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if (os_memcmp(_read, addr_word, 6) == 0) {
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ROBO_ARLCTRL_VEC_2, &ports_read, 1);
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/* and multiport address 2 */
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if (os_memcmp(addr_read, addr_be16, 6) == 0 &&
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ports_read == ports) {
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_read &= ~(1 << 4);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, &zero,
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1);
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goto clean_up;
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}
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}
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/* used multiport address not found */
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return -1;
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clean_up:
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/* leave the multiport registers in a sane state */
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE, ROBO_ARLCTRL_VEC_1,
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_read, 1);
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if (_read[0] == 0) {
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, _read, 1);
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if (_read[0] == 0) {
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_CONF, _read,
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1);
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_read[0] &= ~(1 << 4);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_CONF, _read,
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ROBO_ARLCTRL_CONF, &_read,
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1);
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} else {
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_2, _read,
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3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1, _read,
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3);
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ROBO_ARLCTRL_ADDR_1,
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addr_read, 3);
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, _read,
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1);
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ROBO_ARLCTRL_VEC_1,
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&ports_read, 1);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1, _read,
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1);
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ROBO_ARLCTRL_ADDR_2,
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addr_read, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, &zero,
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1);
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ROBO_ARLCTRL_VEC_2,
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&ports_read, 1);
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}
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} else {
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_2, addr_read, 3);
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wpa_driver_roboswitch_read(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_2, &ports_read, 1);
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/* or multiport address 2 */
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if (os_memcmp(addr_read, addr_be16, 6) == 0 &&
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ports_read == ports) {
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_ADDR_1,
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addr_read, 3);
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wpa_driver_roboswitch_write(drv, ROBO_ARLCTRL_PAGE,
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ROBO_ARLCTRL_VEC_1,
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&ports_read, 1);
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} else return -1;
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}
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return 0;
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}
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@ -328,40 +359,35 @@ clean_up:
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static void * wpa_driver_roboswitch_init(void *ctx, const char *ifname)
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{
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struct wpa_driver_roboswitch_data *drv;
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int len = -1, sep = -1;
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u16 vlan_max = ROBO_VLAN_MAX, vlan = 0, vlan_read[2];
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char *sep;
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u16 vlan = 0, _read[2];
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drv = os_zalloc(sizeof(*drv));
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if (drv == NULL) return NULL;
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drv->ctx = ctx;
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drv->own_addr[0] = '\0';
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while (ifname[++len]) {
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if (ifname[len] == '.')
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sep = len;
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}
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if (sep < 0 || sep >= len - 1) {
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/* copy ifname and take a pointer to the second to last character */
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sep = drv->ifname +
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os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname)) - 2;
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/* find the '.' seperating <interface> and <vlan> */
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while (sep > drv->ifname && *sep != '.') sep--;
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if (sep <= drv->ifname) {
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wpa_printf(MSG_INFO, "%s: No <interface>.<vlan> pair in "
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"interface name %s", __func__, ifname);
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"interface name %s", __func__, drv->ifname);
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os_free(drv);
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return NULL;
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}
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if (sep > IFNAMSIZ) {
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wpa_printf(MSG_INFO, "%s: Interface name %s is too long",
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__func__, ifname);
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os_free(drv);
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return NULL;
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}
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os_memcpy(drv->ifname, ifname, sep);
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drv->ifname[sep] = '\0';
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while (++sep < len) {
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if (ifname[sep] < '0' || ifname[sep] > '9') {
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*sep = '\0';
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while (*++sep) {
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if (*sep < '0' || *sep > '9') {
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wpa_printf(MSG_INFO, "%s: Invalid vlan specification "
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"in interface name %s", __func__, ifname);
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os_free(drv);
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return NULL;
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}
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vlan *= 10;
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vlan += ifname[sep] - '0';
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vlan += *sep - '0';
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if (vlan > ROBO_VLAN_MAX) {
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wpa_printf(MSG_INFO, "%s: VLAN out of range in "
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"interface name %s", __func__, ifname);
|
||||
|
@ -391,31 +417,32 @@ static void * wpa_driver_roboswitch_init(void *ctx, const char *ifname)
|
|||
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;
|
||||
/* set and read back to see if the register can be used */
|
||||
wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE, ROBO_VLAN_ACCESS,
|
||||
&vlan_max, 1);
|
||||
wpa_driver_roboswitch_read(drv, ROBO_VLAN_PAGE, ROBO_VLAN_ACCESS,
|
||||
&vlan_max, 1);
|
||||
if (vlan_max == ROBO_VLAN_MAX) /* pre-5365 */
|
||||
wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE,
|
||||
ROBO_VLAN_ACCESS, &vlan, 1);
|
||||
else /* 5365 uses a different register */
|
||||
wpa_driver_roboswitch_write(drv, ROBO_VLAN_PAGE,
|
||||
ROBO_VLAN_ACCESS_5365, &vlan, 1);
|
||||
wpa_driver_roboswitch_read(drv, ROBO_VLAN_PAGE, ROBO_VLAN_READ,
|
||||
vlan_read, 2);
|
||||
if (!(vlan_read[1] & (1 << 4))) {
|
||||
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 = vlan_read[0] & 0x001F;
|
||||
drv->ports = _read[0] & 0x001F;
|
||||
/* add the MII port */
|
||||
drv->ports |= 1 << 8;
|
||||
if (wpa_driver_roboswitch_join(drv, pae_group_addr) < 0) {
|
||||
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;
|
||||
|
@ -432,7 +459,11 @@ static void wpa_driver_roboswitch_deinit(void *priv)
|
|||
{
|
||||
struct wpa_driver_roboswitch_data *drv = priv;
|
||||
|
||||
if (wpa_driver_roboswitch_leave(drv, pae_group_addr) < 0) {
|
||||
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__);
|
||||
}
|
||||
|
@ -450,5 +481,6 @@ const struct wpa_driver_ops wpa_driver_roboswitch_ops = {
|
|||
.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,
|
||||
};
|
||||
|
|
Loading…
Reference in a new issue