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 "hardware_legacy/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
wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data * drv)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
wpa_driver_notify_country_change(void * ctx,char * cmd)39 static void wpa_driver_notify_country_change(void *ctx, char *cmd)
40 {
41 if ((os_strncasecmp(cmd, "COUNTRY", 7) == 0) ||
42 (os_strncasecmp(cmd, "SETBAND", 7) == 0)) {
43 union wpa_event_data event;
44
45 os_memset(&event, 0, sizeof(event));
46 event.channel_list_changed.initiator = REGDOM_SET_BY_USER;
47 if (os_strncasecmp(cmd, "COUNTRY", 7) == 0) {
48 event.channel_list_changed.type = REGDOM_TYPE_COUNTRY;
49 if (os_strlen(cmd) > 9) {
50 event.channel_list_changed.alpha2[0] = cmd[8];
51 event.channel_list_changed.alpha2[1] = cmd[9];
52 }
53 } else {
54 event.channel_list_changed.type = REGDOM_TYPE_UNKNOWN;
55 }
56 wpa_supplicant_event(ctx, EVENT_CHANNEL_LIST_CHANGED, &event);
57 }
58 }
59
wpa_driver_nl80211_driver_cmd(void * priv,char * cmd,char * buf,size_t buf_len)60 int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
61 size_t buf_len )
62 {
63 struct i802_bss *bss = priv;
64 struct wpa_driver_nl80211_data *drv = bss->drv;
65 struct ifreq ifr;
66 android_wifi_priv_cmd priv_cmd;
67 int ret = 0;
68
69 if (os_strcasecmp(cmd, "STOP") == 0) {
70 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
71 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
72 } else if (os_strcasecmp(cmd, "START") == 0) {
73 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
74 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
75 } else if (os_strcasecmp(cmd, "MACADDR") == 0) {
76 u8 macaddr[ETH_ALEN] = {};
77
78 ret = linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, macaddr);
79 if (!ret)
80 ret = os_snprintf(buf, buf_len,
81 "Macaddr = " MACSTR "\n", MAC2STR(macaddr));
82 } else { /* Use private command */
83 memset(&ifr, 0, sizeof(ifr));
84 memset(&priv_cmd, 0, sizeof(priv_cmd));
85 os_memcpy(buf, cmd, strlen(cmd) + 1);
86 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
87
88 priv_cmd.buf = buf;
89 priv_cmd.used_len = buf_len;
90 priv_cmd.total_len = buf_len;
91 ifr.ifr_data = &priv_cmd;
92
93 if ((ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr)) < 0) {
94 wpa_printf(MSG_ERROR, "%s: failed to issue private commands\n", __func__);
95 } else {
96 drv_errors = 0;
97 ret = 0;
98 if ((os_strcasecmp(cmd, "LINKSPEED") == 0) ||
99 (os_strcasecmp(cmd, "RSSI") == 0) ||
100 (os_strcasecmp(cmd, "GETBAND") == 0) )
101 ret = strlen(buf);
102 else if (os_strcasecmp(cmd, "P2P_DEV_ADDR") == 0)
103 wpa_printf(MSG_DEBUG, "%s: P2P: Device address ("MACSTR")",
104 __func__, MAC2STR(buf));
105 else if (os_strcasecmp(cmd, "P2P_SET_PS") == 0)
106 wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
107 else if (os_strcasecmp(cmd, "P2P_SET_NOA") == 0)
108 wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
109 else
110 wpa_printf(MSG_DEBUG, "%s %s len = %d, %d", __func__, buf, ret, strlen(buf));
111 wpa_driver_notify_country_change(drv->ctx, cmd);
112 }
113 }
114 return ret;
115 }
116
wpa_driver_set_p2p_noa(void * priv,u8 count,int start,int duration)117 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration)
118 {
119 char buf[MAX_DRV_CMD_SIZE];
120
121 memset(buf, 0, sizeof(buf));
122 wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
123 snprintf(buf, sizeof(buf), "P2P_SET_NOA %d %d %d", count, start, duration);
124 return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf)+1);
125 }
126
wpa_driver_get_p2p_noa(void * priv,u8 * buf,size_t len)127 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len)
128 {
129 /* Return 0 till we handle p2p_presence request completely in the driver */
130 return 0;
131 }
132
wpa_driver_set_p2p_ps(void * priv,int legacy_ps,int opp_ps,int ctwindow)133 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow)
134 {
135 char buf[MAX_DRV_CMD_SIZE];
136
137 memset(buf, 0, sizeof(buf));
138 wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
139 snprintf(buf, sizeof(buf), "P2P_SET_PS %d %d %d", legacy_ps, opp_ps, ctwindow);
140 return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf) + 1);
141 }
142
wpa_driver_set_ap_wps_p2p_ie(void * priv,const struct wpabuf * beacon,const struct wpabuf * proberesp,const struct wpabuf * assocresp)143 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
144 const struct wpabuf *proberesp,
145 const struct wpabuf *assocresp)
146 {
147 char buf[MAX_WPSP2PIE_CMD_SIZE];
148 struct wpabuf *ap_wps_p2p_ie = NULL;
149 char *_cmd = "SET_AP_WPS_P2P_IE";
150 char *pbuf;
151 int ret = 0;
152 int i;
153 struct cmd_desc {
154 int cmd;
155 const struct wpabuf *src;
156 } cmd_arr[] = {
157 {0x1, beacon},
158 {0x2, proberesp},
159 {0x4, assocresp},
160 {-1, NULL}
161 };
162
163 wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
164 for (i = 0; cmd_arr[i].cmd != -1; i++) {
165 os_memset(buf, 0, sizeof(buf));
166 pbuf = buf;
167 pbuf += sprintf(pbuf, "%s %d", _cmd, cmd_arr[i].cmd);
168 *pbuf++ = '\0';
169 ap_wps_p2p_ie = cmd_arr[i].src ?
170 wpabuf_dup(cmd_arr[i].src) : NULL;
171 if (ap_wps_p2p_ie) {
172 os_memcpy(pbuf, wpabuf_head(ap_wps_p2p_ie), wpabuf_len(ap_wps_p2p_ie));
173 ret = wpa_driver_nl80211_driver_cmd(priv, buf, buf,
174 strlen(_cmd) + 3 + wpabuf_len(ap_wps_p2p_ie));
175 wpabuf_free(ap_wps_p2p_ie);
176 if (ret < 0)
177 break;
178 }
179 }
180
181 return ret;
182 }
183