1 /* 2 * Driver interaction with extended Linux CFG8021 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * Alternatively, this software may be distributed under the terms of BSD 9 * license. 10 * 11 */ 12 13 #include "driver_nl80211.h" 14 #include "wpa_supplicant_i.h" 15 #include "config.h" 16 #ifdef ANDROID 17 #include "android_drv.h" 18 #endif 19 20 #define MAX_WPSP2PIE_CMD_SIZE 512 21 22 typedef struct android_wifi_priv_cmd { 23 char *buf; 24 int used_len; 25 int total_len; 26 } android_wifi_priv_cmd; 27 28 static int drv_errors = 0; 29 30 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) 31 { 32 drv_errors++; 33 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { 34 drv_errors = 0; 35 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); 36 } 37 } 38 39 int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 40 size_t buf_len ) 41 { 42 struct i802_bss *bss = priv; 43 struct wpa_driver_nl80211_data *drv = bss->drv; 44 struct ifreq ifr; 45 android_wifi_priv_cmd priv_cmd; 46 int ret = 0; 47 48 if (os_strcasecmp(cmd, "STOP") == 0) { 49 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0); 50 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED"); 51 } else if (os_strcasecmp(cmd, "START") == 0) { 52 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1); 53 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED"); 54 } else if (os_strcasecmp(cmd, "MACADDR") == 0) { 55 u8 macaddr[ETH_ALEN] = {}; 56 57 ret = linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, macaddr); 58 if (!ret) 59 ret = os_snprintf(buf, buf_len, 60 "Macaddr = " MACSTR "\n", MAC2STR(macaddr)); 61 } else { /* Use private command */ 62 os_memcpy(buf, cmd, strlen(cmd) + 1); 63 memset(&ifr, 0, sizeof(ifr)); 64 memset(&priv_cmd, 0, sizeof(priv_cmd)); 65 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); 66 67 priv_cmd.buf = buf; 68 priv_cmd.used_len = buf_len; 69 priv_cmd.total_len = buf_len; 70 ifr.ifr_data = &priv_cmd; 71 72 if ((ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr)) < 0) { 73 wpa_printf(MSG_ERROR, "%s: failed to issue private commands\n", __func__); 74 wpa_driver_send_hang_msg(drv); 75 } else { 76 drv_errors = 0; 77 ret = 0; 78 if ((os_strcasecmp(cmd, "LINKSPEED") == 0) || 79 (os_strcasecmp(cmd, "RSSI") == 0) || 80 (os_strcasecmp(cmd, "GETBAND") == 0) ) 81 ret = strlen(buf); 82 else if (os_strncasecmp(cmd, "COUNTRY", 7) == 0) 83 wpa_supplicant_event(drv->ctx, 84 EVENT_CHANNEL_LIST_CHANGED, NULL); 85 wpa_printf(MSG_DEBUG, "%s %s len = %d, %d", __func__, buf, ret, strlen(buf)); 86 } 87 } 88 return ret; 89 } 90 91 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration) 92 { 93 char buf[MAX_DRV_CMD_SIZE]; 94 95 memset(buf, 0, sizeof(buf)); 96 wpa_printf(MSG_DEBUG, "%s: Entry", __func__); 97 snprintf(buf, sizeof(buf), "P2P_SET_NOA %d %d %d", count, start, duration); 98 return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf)+1); 99 } 100 101 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len) 102 { 103 /* Return 0 till we handle p2p_presence request completely in the driver */ 104 return 0; 105 } 106 107 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow) 108 { 109 char buf[MAX_DRV_CMD_SIZE]; 110 111 memset(buf, 0, sizeof(buf)); 112 wpa_printf(MSG_DEBUG, "%s: Entry", __func__); 113 snprintf(buf, sizeof(buf), "P2P_SET_PS %d %d %d", legacy_ps, opp_ps, ctwindow); 114 return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf) + 1); 115 } 116 117 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 118 const struct wpabuf *proberesp, 119 const struct wpabuf *assocresp) 120 { 121 char buf[MAX_WPSP2PIE_CMD_SIZE]; 122 struct wpabuf *ap_wps_p2p_ie = NULL; 123 char *_cmd = "SET_AP_WPS_P2P_IE"; 124 char *pbuf; 125 int ret = 0; 126 int i; 127 struct cmd_desc { 128 int cmd; 129 const struct wpabuf *src; 130 } cmd_arr[] = { 131 {0x1, beacon}, 132 {0x2, proberesp}, 133 {0x4, assocresp}, 134 {-1, NULL} 135 }; 136 137 wpa_printf(MSG_DEBUG, "%s: Entry", __func__); 138 for (i = 0; cmd_arr[i].cmd != -1; i++) { 139 os_memset(buf, 0, sizeof(buf)); 140 pbuf = buf; 141 pbuf += sprintf(pbuf, "%s %d", _cmd, cmd_arr[i].cmd); 142 *pbuf++ = '\0'; 143 ap_wps_p2p_ie = cmd_arr[i].src ? 144 wpabuf_dup(cmd_arr[i].src) : NULL; 145 if (ap_wps_p2p_ie) { 146 os_memcpy(pbuf, wpabuf_head(ap_wps_p2p_ie), wpabuf_len(ap_wps_p2p_ie)); 147 ret = wpa_driver_nl80211_driver_cmd(priv, buf, buf, 148 strlen(_cmd) + 3 + wpabuf_len(ap_wps_p2p_ie)); 149 wpabuf_free(ap_wps_p2p_ie); 150 if (ret < 0) 151 break; 152 } 153 } 154 155 return ret; 156 } 157
