1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7
8 #include <linux/module.h>
9 #include <linux/netdevice.h>
10
11 #include <rtw_android.h>
12 #include <osdep_service.h>
13 #include <rtw_debug.h>
14 #include <rtw_ioctl_set.h>
15
16 static const char *android_wifi_cmd_str[ANDROID_WIFI_CMD_MAX] = {
17 "START",
18 "STOP",
19 "SCAN-ACTIVE",
20 "SCAN-PASSIVE",
21 "RSSI",
22 "LINKSPEED",
23 "RXFILTER-START",
24 "RXFILTER-STOP",
25 "RXFILTER-ADD",
26 "RXFILTER-REMOVE",
27 "BTCOEXSCAN-START",
28 "BTCOEXSCAN-STOP",
29 "BTCOEXMODE",
30 "SETSUSPENDOPT",
31 "P2P_DEV_ADDR",
32 "SETFWPATH",
33 "SETBAND",
34 "GETBAND",
35 "COUNTRY",
36 "P2P_SET_NOA",
37 "P2P_GET_NOA",
38 "P2P_SET_PS",
39 "SET_AP_WPS_P2P_IE",
40 "MACADDR",
41 "BLOCK",
42 "WFD-ENABLE",
43 "WFD-DISABLE",
44 "WFD-SET-TCPPORT",
45 "WFD-SET-MAXTPUT",
46 "WFD-SET-DEVTYPE",
47 };
48
49 struct android_wifi_priv_cmd {
50 const char __user *buf;
51 int used_len;
52 int total_len;
53 };
54
rtw_android_cmdstr_to_num(char * cmdstr)55 int rtw_android_cmdstr_to_num(char *cmdstr)
56 {
57 int cmd_num;
58
59 for (cmd_num = 0; cmd_num < ANDROID_WIFI_CMD_MAX; cmd_num++)
60 if (!strncasecmp(cmdstr, android_wifi_cmd_str[cmd_num],
61 strlen(android_wifi_cmd_str[cmd_num])))
62 break;
63 return cmd_num;
64 }
65
rtw_android_get_rssi(struct net_device * net,char * command,int total_len)66 static int rtw_android_get_rssi(struct net_device *net, char *command,
67 int total_len)
68 {
69 struct adapter *padapter = netdev_priv(net);
70 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
71 struct wlan_network *pcur_network = &pmlmepriv->cur_network;
72 int bytes_written = 0;
73
74 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
75 bytes_written += snprintf(&command[bytes_written], total_len,
76 "%s rssi %d",
77 pcur_network->network.ssid.ssid,
78 padapter->recvpriv.rssi);
79 }
80 return bytes_written;
81 }
82
rtw_android_get_link_speed(struct net_device * net,char * command,int total_len)83 static int rtw_android_get_link_speed(struct net_device *net, char *command,
84 int total_len)
85 {
86 struct adapter *padapter = netdev_priv(net);
87 u16 link_speed;
88
89 link_speed = rtw_get_cur_max_rate(padapter) / 10;
90 return snprintf(command, total_len, "LinkSpeed %d",
91 link_speed);
92 }
93
rtw_android_get_macaddr(struct net_device * net,char * command,int total_len)94 static int rtw_android_get_macaddr(struct net_device *net, char *command,
95 int total_len)
96 {
97 return snprintf(command, total_len, "Macaddr = %pM",
98 net->dev_addr);
99 }
100
android_set_cntry(struct net_device * net,char * command,int total_len)101 static int android_set_cntry(struct net_device *net, char *command,
102 int total_len)
103 {
104 struct adapter *adapter = netdev_priv(net);
105 char *country_code = command + strlen(android_wifi_cmd_str[ANDROID_WIFI_CMD_COUNTRY]) + 1;
106 int ret;
107
108 ret = rtw_set_country(adapter, country_code);
109 return (ret == _SUCCESS) ? 0 : -1;
110 }
111
android_get_p2p_addr(struct net_device * net,char * command,int total_len)112 static int android_get_p2p_addr(struct net_device *net, char *command,
113 int total_len)
114 {
115 /* We use the same address as our HW MAC address */
116 memcpy(command, net->dev_addr, ETH_ALEN);
117 return ETH_ALEN;
118 }
119
rtw_android_priv_cmd(struct net_device * net,struct ifreq * ifr,int cmd)120 int rtw_android_priv_cmd(struct net_device *net, struct ifreq *ifr, int cmd)
121 {
122 int ret = 0;
123 char *command;
124 int cmd_num;
125 int bytes_written = 0;
126 struct android_wifi_priv_cmd priv_cmd;
127
128 if (!ifr->ifr_data)
129 return -EINVAL;
130 if (copy_from_user(&priv_cmd, ifr->ifr_data, sizeof(priv_cmd)))
131 return -EFAULT;
132 if (priv_cmd.total_len < 1)
133 return -EINVAL;
134 command = memdup_user(priv_cmd.buf, priv_cmd.total_len);
135 if (IS_ERR(command))
136 return PTR_ERR(command);
137 command[priv_cmd.total_len - 1] = 0;
138 DBG_88E("%s: Android private cmd \"%s\" on %s\n",
139 __func__, command, ifr->ifr_name);
140 cmd_num = rtw_android_cmdstr_to_num(command);
141 switch (cmd_num) {
142 case ANDROID_WIFI_CMD_START:
143 goto response;
144 case ANDROID_WIFI_CMD_SETFWPATH:
145 goto response;
146 }
147 switch (cmd_num) {
148 case ANDROID_WIFI_CMD_STOP:
149 break;
150 case ANDROID_WIFI_CMD_SCAN_ACTIVE:
151 break;
152 case ANDROID_WIFI_CMD_SCAN_PASSIVE:
153 break;
154 case ANDROID_WIFI_CMD_RSSI:
155 bytes_written = rtw_android_get_rssi(net, command,
156 priv_cmd.total_len);
157 break;
158 case ANDROID_WIFI_CMD_LINKSPEED:
159 bytes_written = rtw_android_get_link_speed(net, command,
160 priv_cmd.total_len);
161 break;
162 case ANDROID_WIFI_CMD_MACADDR:
163 bytes_written = rtw_android_get_macaddr(net, command,
164 priv_cmd.total_len);
165 break;
166 case ANDROID_WIFI_CMD_BLOCK:
167 break;
168 case ANDROID_WIFI_CMD_RXFILTER_START:
169 break;
170 case ANDROID_WIFI_CMD_RXFILTER_STOP:
171 break;
172 case ANDROID_WIFI_CMD_RXFILTER_ADD:
173 break;
174 case ANDROID_WIFI_CMD_RXFILTER_REMOVE:
175 break;
176 case ANDROID_WIFI_CMD_BTCOEXSCAN_START:
177 /* TBD: BTCOEXSCAN-START */
178 break;
179 case ANDROID_WIFI_CMD_BTCOEXSCAN_STOP:
180 /* TBD: BTCOEXSCAN-STOP */
181 break;
182 case ANDROID_WIFI_CMD_BTCOEXMODE:
183 break;
184 case ANDROID_WIFI_CMD_SETSUSPENDOPT:
185 break;
186 case ANDROID_WIFI_CMD_SETBAND:
187 break;
188 case ANDROID_WIFI_CMD_GETBAND:
189 break;
190 case ANDROID_WIFI_CMD_COUNTRY:
191 bytes_written = android_set_cntry(net, command,
192 priv_cmd.total_len);
193 break;
194 case ANDROID_WIFI_CMD_P2P_DEV_ADDR:
195 bytes_written = android_get_p2p_addr(net, command,
196 priv_cmd.total_len);
197 break;
198 case ANDROID_WIFI_CMD_P2P_SET_NOA:
199 break;
200 case ANDROID_WIFI_CMD_P2P_GET_NOA:
201 break;
202 case ANDROID_WIFI_CMD_P2P_SET_PS:
203 break;
204 default:
205 DBG_88E("Unknown PRIVATE command %s - ignored\n", command);
206 snprintf(command, 3, "OK");
207 bytes_written = strlen("OK");
208 }
209
210 response:
211 if (bytes_written >= 0) {
212 if ((bytes_written == 0) && (priv_cmd.total_len > 0))
213 command[0] = '\0';
214 if (bytes_written >= priv_cmd.total_len) {
215 DBG_88E("%s: bytes_written = %d\n", __func__,
216 bytes_written);
217 bytes_written = priv_cmd.total_len;
218 } else {
219 bytes_written++;
220 }
221 priv_cmd.used_len = bytes_written;
222 if (copy_to_user((char __user *)priv_cmd.buf, command,
223 bytes_written)) {
224 DBG_88E("%s: failed to copy data to user buffer\n",
225 __func__);
226 ret = -EFAULT;
227 }
228 } else {
229 ret = bytes_written;
230 }
231 kfree(command);
232 return ret;
233 }
234