diff options
Diffstat (limited to 'mac80211/wpa_supplicant_lib/driver_mac80211_nl.c')
| -rw-r--r-- | mac80211/wpa_supplicant_lib/driver_mac80211_nl.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/mac80211/wpa_supplicant_lib/driver_mac80211_nl.c b/mac80211/wpa_supplicant_lib/driver_mac80211_nl.c new file mode 100644 index 00000000..f1fc23f1 --- /dev/null +++ b/mac80211/wpa_supplicant_lib/driver_mac80211_nl.c @@ -0,0 +1,257 @@ +#include "includes.h" +#include <sys/ioctl.h> +#include <net/if_arp.h> +#include <net/if.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <netlink/genl/genl.h> +#include <netlink/genl/family.h> +#include <netlink/genl/ctrl.h> +#include <netlink/msg.h> +#include <netlink/attr.h> + +#include "wireless_copy.h" +#include "common.h" +#include "driver.h" +#include "eloop.h" +#include "driver_wext.h" +#include "ieee802_11_defs.h" +#include "wpa_common.h" +#include "wpa_ctrl.h" +#include "wpa_supplicant_i.h" +#include "config_ssid.h" +#include "wpa_debug.h" +#include "linux_ioctl.h" +#include "driver_nl80211.h" + +#define WPA_EVENT_DRIVER_STATE "CTRL-EVENT-DRIVER-STATE " +#define DRV_NUMBER_SEQUENTIAL_ERRORS 4 + +#define WPA_PS_ENABLED 0 +#define WPA_PS_DISABLED 1 + +#define BLUETOOTH_COEXISTENCE_MODE_ENABLED 0 +#define BLUETOOTH_COEXISTENCE_MODE_DISABLED 1 +#define BLUETOOTH_COEXISTENCE_MODE_SENSE 2 + + +static int g_drv_errors = 0; +static int g_power_mode = 0; + +int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg, + int (*valid_handler)(struct nl_msg *, void *), + void *valid_data); + +static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) +{ + g_drv_errors++; + if (g_drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { + g_drv_errors = 0; + wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); + } +} + +static int get_link_signal(struct nl_msg *msg, void *arg) +{ + struct nlattr *tb[NL80211_ATTR_MAX + 1]; + struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); + struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; + static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { + [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, + }; + struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; + static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { + [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, + [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, + [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, + [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, + }; + struct wpa_signal_info *sig_change = arg; + + nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), + genlmsg_attrlen(gnlh, 0), NULL); + if (!tb[NL80211_ATTR_STA_INFO] || + nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, + tb[NL80211_ATTR_STA_INFO], policy)) + return NL_SKIP; + if (!sinfo[NL80211_STA_INFO_SIGNAL]) + return NL_SKIP; + + sig_change->current_signal = + (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); + + if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { + if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, + sinfo[NL80211_STA_INFO_TX_BITRATE], + rate_policy)) { + sig_change->current_txrate = 0; + } else { + if (rinfo[NL80211_RATE_INFO_BITRATE]) { + sig_change->current_txrate = + nla_get_u16(rinfo[ + NL80211_RATE_INFO_BITRATE]) * 100; + } + } + } + + return NL_SKIP; +} + +static int wpa_driver_get_link_signal(void *priv, struct wpa_signal_info *sig) +{ + struct i802_bss *bss = priv; + struct wpa_driver_nl80211_data *drv = bss->drv; + struct nl_msg *msg; + int ret = -1; + + sig->current_signal = -9999; + sig->current_txrate = 0; + + msg = nlmsg_alloc(); + if (!msg) + return -1; + + genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, + 0, NL80211_CMD_GET_STATION, 0); + + NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); + NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); + + ret = send_and_recv_msgs(drv, msg, get_link_signal, sig); + msg = NULL; + if (ret < 0) + wpa_printf(MSG_ERROR, "nl80211: get link signal fail: %d", ret); +nla_put_failure: + nlmsg_free(msg); + return ret; +} + +static int wpa_driver_toggle_btcoex_state(char state) +{ + int ret; + int fd = open("/sys/devices/platform/wl1271/bt_coex_state", O_RDWR, 0); + if (fd == -1) + return -1; + + ret = write(fd, &state, sizeof(state)); + close(fd); + + wpa_printf(MSG_DEBUG, "%s: set btcoex state to '%c' result = %d", __func__, + state, ret); + return ret; +} + +static int wpa_driver_set_power_save(void *priv, int state) +{ + struct i802_bss *bss = priv; + struct wpa_driver_nl80211_data *drv = bss->drv; + struct nl_msg *msg; + int ret = -1; + enum nl80211_ps_state ps_state; + + msg = nlmsg_alloc(); + if (!msg) + return -1; + + genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, + NL80211_CMD_SET_POWER_SAVE, 0); + + if (state == WPA_PS_ENABLED) + ps_state = NL80211_PS_ENABLED; + else + ps_state = NL80211_PS_DISABLED; + + NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); + NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); + + ret = send_and_recv_msgs(drv, msg, NULL, NULL); + msg = NULL; + if (ret < 0) + wpa_printf(MSG_ERROR, "nl80211: Set power mode fail: %d", ret); +nla_put_failure: + nlmsg_free(msg); + return ret; +} + +int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, + size_t buf_len ) +{ + struct i802_bss *bss = priv; + struct wpa_driver_nl80211_data *drv = bss->drv; + struct ifreq ifr; + int ret = 0; + + if (os_strcasecmp(cmd, "STOP") == 0) { + linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0); + wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED"); + } else if (os_strcasecmp(cmd, "START") == 0) { + linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1); + wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED"); + } else if (os_strcasecmp(cmd, "RELOAD") == 0) { + wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); + } else if (os_strncasecmp(cmd, "POWERMODE ", 10) == 0) { + int mode; + mode = atoi(cmd + 10); + ret = wpa_driver_set_power_save(priv, mode); + if (ret < 0) { + wpa_driver_send_hang_msg(drv); + } else { + g_power_mode = mode; + g_drv_errors = 0; + } + } else if (os_strncasecmp(cmd, "GETPOWER", 8) == 0) { + ret = os_snprintf(buf, buf_len, "POWERMODE = %d\n", g_power_mode); + } else if (os_strncasecmp(cmd, "BTCOEXMODE ", 11) == 0) { + int mode = atoi(cmd + 11); + if (mode == BLUETOOTH_COEXISTENCE_MODE_DISABLED) { /* disable BT-coex */ + ret = wpa_driver_toggle_btcoex_state('0'); + } else if (mode == BLUETOOTH_COEXISTENCE_MODE_SENSE) { /* enable BT-coex */ + ret = wpa_driver_toggle_btcoex_state('1'); + } else { + wpa_printf(MSG_DEBUG, "invalid btcoex mode: %d", mode); + ret = -1; + } + } else if ((os_strcasecmp(cmd, "RSSI") == 0) || (os_strcasecmp(cmd, "RSSI-APPROX") == 0)) { + struct wpa_signal_info sig; + int rssi; + + if (!drv->associated) + return -1; + + ret = wpa_driver_get_link_signal(priv, &sig); + if (ret < 0) { + wpa_driver_send_hang_msg(drv); + } else { + rssi = sig.current_signal; + wpa_printf(MSG_DEBUG, "%s rssi %d\n", drv->ssid, rssi); + ret = os_snprintf(buf, buf_len, "%s rssi %d\n", drv->ssid, rssi); + } + } else if (os_strcasecmp(cmd, "LINKSPEED") == 0) { + struct wpa_signal_info sig; + int linkspeed; + + if (!drv->associated) + return -1; + + ret = wpa_driver_get_link_signal(priv, &sig); + if (ret < 0) { + wpa_driver_send_hang_msg(drv); + } else { + linkspeed = sig.current_txrate / 1000; + wpa_printf(MSG_DEBUG, "LinkSpeed %d\n", linkspeed); + ret = os_snprintf(buf, buf_len, "LinkSpeed %d\n", linkspeed); + } + } else if (os_strcasecmp(cmd, "MACADDR") == 0) { + u8 macaddr[ETH_ALEN] = {}; + + ret = linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, macaddr); + if (!ret) + ret = os_snprintf(buf, buf_len, + "Macaddr = " MACSTR "\n", MAC2STR(macaddr)); + } else { + wpa_printf(MSG_INFO, "%s: Unsupported command %s", __func__, cmd); + } + return ret; +} |