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7753f181 DD |
1 | #include <errno.h> |
2 | #include <stdint.h> | |
c0b490a2 | 3 | #include <string.h> |
7753f181 DD |
4 | #include <fcntl.h> |
5 | #include <sys/socket.h> | |
6 | #include <netlink/genl/genl.h> | |
7 | #include <netlink/genl/family.h> | |
8 | #include <netlink/genl/ctrl.h> | |
9 | #include <linux/rtnetlink.h> | |
10 | #include <netpacket/packet.h> | |
11 | #include <linux/filter.h> | |
12 | #include <linux/errqueue.h> | |
13 | ||
14 | #include <linux/pkt_sched.h> | |
15 | #include <netlink/object-api.h> | |
16 | #include <netlink/netlink.h> | |
17 | #include <netlink/socket.h> | |
18 | #include <netlink/attr.h> | |
19 | #include <netlink/handlers.h> | |
20 | #include <netlink/msg.h> | |
21 | ||
22 | #include <dirent.h> | |
23 | #include <net/if.h> | |
24 | ||
25 | #include "sync.h" | |
26 | ||
27 | #define LOG_TAG "WifiHAL" | |
28 | ||
29 | #include <utils/Log.h> | |
7753f181 DD |
30 | #include "wifi_hal.h" |
31 | #include "common.h" | |
32 | #include "cpp_bindings.h" | |
33 | ||
34 | ||
35 | #define WIFI_HAL_CMD_SOCK_PORT 644 | |
36 | #define WIFI_HAL_EVENT_SOCK_PORT 645 | |
37 | ||
38 | #define FEATURE_SET 0 | |
39 | #define FEATURE_SET_MATRIX 1 | |
40 | #define ATTR_NODFS_VALUE 3 | |
1fdbd4c1 | 41 | #define ATTR_COUNTRY_CODE 4 |
7753f181 DD |
42 | |
43 | static void internal_event_handler(wifi_handle handle, int events); | |
44 | static int internal_no_seq_check(nl_msg *msg, void *arg); | |
45 | static int internal_valid_message_handler(nl_msg *msg, void *arg); | |
46 | static int wifi_get_multicast_id(wifi_handle handle, const char *name, const char *group); | |
47 | static int wifi_add_membership(wifi_handle handle, const char *group); | |
48 | static wifi_error wifi_init_interfaces(wifi_handle handle); | |
49 | ||
50 | typedef enum wifi_attr { | |
51 | ANDR_WIFI_ATTRIBUTE_NUM_FEATURE_SET, | |
52 | ANDR_WIFI_ATTRIBUTE_FEATURE_SET, | |
53 | ANDR_WIFI_ATTRIBUTE_PNO_RANDOM_MAC_OUI | |
54 | } wifi_attr_t; | |
55 | ||
f425b4a8 PG |
56 | enum wifi_rssi_monitor_attr { |
57 | RSSI_MONITOR_ATTRIBUTE_MAX_RSSI, | |
58 | RSSI_MONITOR_ATTRIBUTE_MIN_RSSI, | |
59 | RSSI_MONITOR_ATTRIBUTE_START, | |
60 | }; | |
61 | ||
62 | static wifi_error wifi_start_rssi_monitoring(wifi_request_id id, wifi_interface_handle | |
63 | iface, s8 max_rssi, s8 min_rssi, wifi_rssi_event_handler eh); | |
64 | static wifi_error wifi_stop_rssi_monitoring(wifi_request_id id, wifi_interface_handle iface); | |
65 | ||
7753f181 DD |
66 | /* Initialize/Cleanup */ |
67 | ||
68 | void wifi_socket_set_local_port(struct nl_sock *sock, uint32_t port) | |
69 | { | |
70 | uint32_t pid = getpid() & 0x3FFFFF; | |
71 | nl_socket_set_local_port(sock, pid + (port << 22)); | |
72 | } | |
73 | ||
74 | static nl_sock * wifi_create_nl_socket(int port) | |
75 | { | |
7753f181 DD |
76 | struct nl_sock *sock = nl_socket_alloc(); |
77 | if (sock == NULL) { | |
78 | ALOGE("Could not create handle"); | |
79 | return NULL; | |
80 | } | |
81 | ||
82 | wifi_socket_set_local_port(sock, port); | |
83 | ||
7753f181 DD |
84 | if (nl_connect(sock, NETLINK_GENERIC)) { |
85 | ALOGE("Could not connect handle"); | |
86 | nl_socket_free(sock); | |
87 | return NULL; | |
88 | } | |
89 | ||
7753f181 DD |
90 | return sock; |
91 | } | |
92 | ||
d59e4b54 | 93 | /* Initialize HAL function pointer table */ |
7753f181 DD |
94 | wifi_error init_wifi_vendor_hal_func_table(wifi_hal_fn *fn) |
95 | { | |
96 | if (fn == NULL) { | |
97 | return WIFI_ERROR_UNKNOWN; | |
98 | } | |
99 | fn->wifi_initialize = wifi_initialize; | |
100 | fn->wifi_cleanup = wifi_cleanup; | |
101 | fn->wifi_event_loop = wifi_event_loop; | |
102 | fn->wifi_get_supported_feature_set = wifi_get_supported_feature_set; | |
103 | fn->wifi_get_concurrency_matrix = wifi_get_concurrency_matrix; | |
104 | fn->wifi_set_scanning_mac_oui = wifi_set_scanning_mac_oui; | |
105 | fn->wifi_get_ifaces = wifi_get_ifaces; | |
106 | fn->wifi_get_iface_name = wifi_get_iface_name; | |
107 | fn->wifi_start_gscan = wifi_start_gscan; | |
108 | fn->wifi_stop_gscan = wifi_stop_gscan; | |
109 | fn->wifi_get_cached_gscan_results = wifi_get_cached_gscan_results; | |
110 | fn->wifi_set_bssid_hotlist = wifi_set_bssid_hotlist; | |
111 | fn->wifi_reset_bssid_hotlist = wifi_reset_bssid_hotlist; | |
112 | fn->wifi_set_significant_change_handler = wifi_set_significant_change_handler; | |
113 | fn->wifi_reset_significant_change_handler = wifi_reset_significant_change_handler; | |
114 | fn->wifi_get_gscan_capabilities = wifi_get_gscan_capabilities; | |
7753f181 DD |
115 | fn->wifi_get_valid_channels = wifi_get_valid_channels; |
116 | fn->wifi_rtt_range_request = wifi_rtt_range_request; | |
117 | fn->wifi_rtt_range_cancel = wifi_rtt_range_cancel; | |
118 | fn->wifi_get_rtt_capabilities = wifi_get_rtt_capabilities; | |
119 | fn->wifi_set_nodfs_flag = wifi_set_nodfs_flag; | |
3c0c6ab1 PG |
120 | fn->wifi_start_sending_offloaded_packet = wifi_start_sending_offloaded_packet; |
121 | fn->wifi_stop_sending_offloaded_packet = wifi_stop_sending_offloaded_packet; | |
6ff2d683 | 122 | fn->wifi_set_epno_list = wifi_set_epno_list; |
c15187c1 | 123 | fn->wifi_reset_epno_list = wifi_reset_epno_list; |
6ff2d683 JPS |
124 | fn->wifi_set_passpoint_list = wifi_set_passpoint_list; |
125 | fn->wifi_reset_passpoint_list = wifi_reset_passpoint_list; | |
10d7569e | 126 | fn->wifi_set_bssid_blacklist = wifi_set_bssid_blacklist; |
f425b4a8 PG |
127 | fn->wifi_start_rssi_monitoring = wifi_start_rssi_monitoring; |
128 | fn->wifi_stop_rssi_monitoring = wifi_stop_rssi_monitoring; | |
d583845d | 129 | fn->wifi_set_link_stats = wifi_set_link_stats; |
058cae5f | 130 | fn->wifi_get_link_stats = wifi_get_link_stats; |
d583845d | 131 | fn->wifi_clear_link_stats = wifi_clear_link_stats; |
1fdbd4c1 | 132 | fn->wifi_set_country_code = wifi_set_country_code; |
d1c19a13 | 133 | |
7753f181 DD |
134 | return WIFI_SUCCESS; |
135 | } | |
136 | ||
137 | wifi_error wifi_initialize(wifi_handle *handle) | |
138 | { | |
139 | srand(getpid()); | |
140 | ||
141 | ALOGI("Initializing wifi"); | |
142 | hal_info *info = (hal_info *)malloc(sizeof(hal_info)); | |
143 | if (info == NULL) { | |
144 | ALOGE("Could not allocate hal_info"); | |
145 | return WIFI_ERROR_UNKNOWN; | |
146 | } | |
147 | ||
148 | memset(info, 0, sizeof(*info)); | |
149 | ||
7753f181 DD |
150 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, info->cleanup_socks) == -1) { |
151 | ALOGE("Could not create cleanup sockets"); | |
152 | free(info); | |
153 | return WIFI_ERROR_UNKNOWN; | |
154 | } | |
155 | ||
156 | struct nl_sock *cmd_sock = wifi_create_nl_socket(WIFI_HAL_CMD_SOCK_PORT); | |
157 | if (cmd_sock == NULL) { | |
158 | ALOGE("Could not create handle"); | |
159 | free(info); | |
160 | return WIFI_ERROR_UNKNOWN; | |
161 | } | |
162 | ||
163 | struct nl_sock *event_sock = wifi_create_nl_socket(WIFI_HAL_EVENT_SOCK_PORT); | |
164 | if (event_sock == NULL) { | |
165 | ALOGE("Could not create handle"); | |
166 | nl_socket_free(cmd_sock); | |
167 | free(info); | |
168 | return WIFI_ERROR_UNKNOWN; | |
169 | } | |
170 | ||
171 | struct nl_cb *cb = nl_socket_get_cb(event_sock); | |
172 | if (cb == NULL) { | |
173 | ALOGE("Could not create handle"); | |
174 | nl_socket_free(cmd_sock); | |
175 | nl_socket_free(event_sock); | |
176 | free(info); | |
177 | return WIFI_ERROR_UNKNOWN; | |
178 | } | |
179 | ||
180 | // ALOGI("cb->refcnt = %d", cb->cb_refcnt); | |
181 | nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, internal_no_seq_check, info); | |
182 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, internal_valid_message_handler, info); | |
183 | nl_cb_put(cb); | |
184 | ||
185 | info->cmd_sock = cmd_sock; | |
186 | info->event_sock = event_sock; | |
187 | info->clean_up = false; | |
188 | info->in_event_loop = false; | |
189 | ||
190 | info->event_cb = (cb_info *)malloc(sizeof(cb_info) * DEFAULT_EVENT_CB_SIZE); | |
191 | info->alloc_event_cb = DEFAULT_EVENT_CB_SIZE; | |
192 | info->num_event_cb = 0; | |
193 | ||
194 | info->cmd = (cmd_info *)malloc(sizeof(cmd_info) * DEFAULT_CMD_SIZE); | |
195 | info->alloc_cmd = DEFAULT_CMD_SIZE; | |
196 | info->num_cmd = 0; | |
197 | ||
198 | info->nl80211_family_id = genl_ctrl_resolve(cmd_sock, "nl80211"); | |
199 | if (info->nl80211_family_id < 0) { | |
200 | ALOGE("Could not resolve nl80211 familty id"); | |
201 | nl_socket_free(cmd_sock); | |
202 | nl_socket_free(event_sock); | |
203 | free(info); | |
204 | return WIFI_ERROR_UNKNOWN; | |
205 | } | |
206 | ||
207 | pthread_mutex_init(&info->cb_lock, NULL); | |
208 | ||
209 | *handle = (wifi_handle) info; | |
c0b490a2 | 210 | |
7753f181 DD |
211 | wifi_add_membership(*handle, "scan"); |
212 | wifi_add_membership(*handle, "mlme"); | |
213 | wifi_add_membership(*handle, "regulatory"); | |
214 | wifi_add_membership(*handle, "vendor"); | |
215 | ||
216 | wifi_init_interfaces(*handle); | |
c0b490a2 JPS |
217 | char intf_name_buff[10 * 10 + 4]; /* Randomly choosen max interface 10. each interface name max 9 + 1(for space) */ |
218 | char *pos = intf_name_buff; | |
219 | for (int i = 0; i < (info->num_interfaces < 10 ? info->num_interfaces : 10); i++) { | |
220 | strncpy(pos, info->interfaces[i]->name, sizeof(intf_name_buff) - (pos - intf_name_buff)); | |
221 | pos += strlen(pos); | |
222 | } | |
223 | if (info->num_interfaces > 10) { | |
224 | strncpy(pos, "...", 3); | |
225 | } | |
7753f181 | 226 | |
c0b490a2 | 227 | ALOGD("Found %d interfaces[%s]. Initialized Wifi HAL Successfully", info->num_interfaces, intf_name_buff); |
7753f181 | 228 | |
7753f181 DD |
229 | return WIFI_SUCCESS; |
230 | } | |
231 | ||
232 | static int wifi_add_membership(wifi_handle handle, const char *group) | |
233 | { | |
234 | hal_info *info = getHalInfo(handle); | |
235 | ||
236 | int id = wifi_get_multicast_id(handle, "nl80211", group); | |
237 | if (id < 0) { | |
238 | ALOGE("Could not find group %s", group); | |
239 | return id; | |
240 | } | |
241 | ||
242 | int ret = nl_socket_add_membership(info->event_sock, id); | |
243 | if (ret < 0) { | |
244 | ALOGE("Could not add membership to group %s", group); | |
245 | } | |
7753f181 DD |
246 | return ret; |
247 | } | |
248 | ||
249 | static void internal_cleaned_up_handler(wifi_handle handle) | |
250 | { | |
251 | hal_info *info = getHalInfo(handle); | |
252 | wifi_cleaned_up_handler cleaned_up_handler = info->cleaned_up_handler; | |
253 | ||
254 | if (info->cmd_sock != 0) { | |
255 | close(info->cleanup_socks[0]); | |
256 | close(info->cleanup_socks[1]); | |
257 | nl_socket_free(info->cmd_sock); | |
258 | nl_socket_free(info->event_sock); | |
259 | info->cmd_sock = NULL; | |
260 | info->event_sock = NULL; | |
261 | } | |
262 | ||
263 | (*cleaned_up_handler)(handle); | |
264 | pthread_mutex_destroy(&info->cb_lock); | |
265 | free(info); | |
7753f181 DD |
266 | } |
267 | ||
268 | void wifi_cleanup(wifi_handle handle, wifi_cleaned_up_handler handler) | |
269 | { | |
270 | hal_info *info = getHalInfo(handle); | |
271 | char buf[64]; | |
272 | ||
273 | info->cleaned_up_handler = handler; | |
274 | if (write(info->cleanup_socks[0], "Exit", 4) < 1) { | |
275 | ALOGE("could not write to the cleanup socket"); | |
276 | } else { | |
277 | // Listen to the response | |
278 | // Hopefully we dont get errors or get hung up | |
279 | // Not much can be done in that case, but assume that | |
280 | // it has rx'ed the Exit message to exit the thread. | |
281 | // As a fallback set the cleanup flag to TRUE | |
282 | memset(buf, 0, sizeof(buf)); | |
283 | int result = read(info->cleanup_socks[0], buf, sizeof(buf)); | |
284 | ALOGE("%s: Read after POLL returned %d, error no = %d", __FUNCTION__, result, errno); | |
c0b490a2 | 285 | if (strncmp(buf, "Done", 4) != 0) { |
7753f181 DD |
286 | ALOGD("Rx'ed %s", buf); |
287 | } | |
288 | } | |
289 | info->clean_up = true; | |
290 | pthread_mutex_lock(&info->cb_lock); | |
291 | ||
292 | int bad_commands = 0; | |
293 | ||
7753f181 DD |
294 | while (info->num_cmd > bad_commands) { |
295 | int num_cmd = info->num_cmd; | |
296 | cmd_info *cmdi = &(info->cmd[bad_commands]); | |
297 | WifiCommand *cmd = cmdi->cmd; | |
298 | if (cmd != NULL) { | |
299 | pthread_mutex_unlock(&info->cb_lock); | |
300 | cmd->cancel(); | |
301 | pthread_mutex_lock(&info->cb_lock); | |
302 | /* release reference added when command is saved */ | |
303 | cmd->releaseRef(); | |
304 | if (num_cmd == info->num_cmd) { | |
305 | bad_commands++; | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
310 | for (int i = 0; i < info->num_event_cb; i++) { | |
311 | cb_info *cbi = &(info->event_cb[i]); | |
312 | WifiCommand *cmd = (WifiCommand *)cbi->cb_arg; | |
313 | ALOGE("Leaked command %p", cmd); | |
314 | } | |
315 | pthread_mutex_unlock(&info->cb_lock); | |
316 | internal_cleaned_up_handler(handle); | |
317 | } | |
318 | ||
319 | static int internal_pollin_handler(wifi_handle handle) | |
320 | { | |
321 | hal_info *info = getHalInfo(handle); | |
7753f181 DD |
322 | struct nl_cb *cb = nl_socket_get_cb(info->event_sock); |
323 | int res = nl_recvmsgs(info->event_sock, cb); | |
7753f181 DD |
324 | nl_cb_put(cb); |
325 | return res; | |
326 | } | |
327 | ||
328 | /* Run event handler */ | |
329 | void wifi_event_loop(wifi_handle handle) | |
330 | { | |
331 | hal_info *info = getHalInfo(handle); | |
7753f181 DD |
332 | if (info->in_event_loop) { |
333 | return; | |
334 | } else { | |
335 | info->in_event_loop = true; | |
336 | } | |
337 | ||
338 | pollfd pfd[2]; | |
339 | memset(&pfd[0], 0, sizeof(pollfd) * 2); | |
340 | ||
341 | pfd[0].fd = nl_socket_get_fd(info->event_sock); | |
342 | pfd[0].events = POLLIN; | |
343 | pfd[1].fd = info->cleanup_socks[1]; | |
344 | pfd[1].events = POLLIN; | |
345 | ||
346 | char buf[2048]; | |
347 | ||
348 | do { | |
349 | int timeout = -1; /* Infinite timeout */ | |
350 | pfd[0].revents = 0; | |
351 | pfd[1].revents = 0; | |
352 | int result = poll(pfd, 2, timeout); | |
353 | if (result < 0) { | |
354 | } else if (pfd[0].revents & POLLERR) { | |
c0b490a2 | 355 | int prev_err = (int)errno; |
7753f181 | 356 | int result2 = read(pfd[0].fd, buf, sizeof(buf)); |
c0b490a2 | 357 | ALOGE("Poll err:%d | Read after POLL returned %d, error no = %d", prev_err, result2, errno); |
7753f181 DD |
358 | } else if (pfd[0].revents & POLLHUP) { |
359 | ALOGE("Remote side hung up"); | |
360 | break; | |
361 | } else if (pfd[0].revents & POLLIN) { | |
362 | internal_pollin_handler(handle); | |
363 | } else if (pfd[1].revents & POLLIN) { | |
364 | memset(buf, 0, sizeof(buf)); | |
365 | int result2 = read(pfd[1].fd, buf, sizeof(buf)); | |
366 | ALOGE("%s: Read after POLL returned %d, error no = %d", __FUNCTION__, result2, errno); | |
367 | if (strncmp(buf, "Exit", 4) == 0) { | |
368 | ALOGD("Got a signal to exit!!!"); | |
369 | if (write(pfd[1].fd, "Done", 4) < 1) { | |
370 | ALOGE("could not write to the cleanup socket"); | |
371 | } | |
372 | break; | |
373 | } else { | |
374 | ALOGD("Rx'ed %s on the cleanup socket\n", buf); | |
375 | } | |
376 | } else { | |
377 | ALOGE("Unknown event - %0x, %0x", pfd[0].revents, pfd[1].revents); | |
378 | } | |
379 | } while (!info->clean_up); | |
7753f181 DD |
380 | } |
381 | ||
382 | /////////////////////////////////////////////////////////////////////////////////////// | |
383 | ||
384 | static int internal_no_seq_check(struct nl_msg *msg, void *arg) | |
385 | { | |
386 | return NL_OK; | |
387 | } | |
388 | ||
389 | static int internal_valid_message_handler(nl_msg *msg, void *arg) | |
390 | { | |
391 | wifi_handle handle = (wifi_handle)arg; | |
392 | hal_info *info = getHalInfo(handle); | |
7753f181 DD |
393 | |
394 | WifiEvent event(msg); | |
395 | int res = event.parse(); | |
396 | if (res < 0) { | |
397 | ALOGE("Failed to parse event: %d", res); | |
398 | return NL_SKIP; | |
399 | } | |
400 | ||
401 | int cmd = event.get_cmd(); | |
402 | uint32_t vendor_id = 0; | |
403 | int subcmd = 0; | |
404 | ||
405 | if (cmd == NL80211_CMD_VENDOR) { | |
406 | vendor_id = event.get_u32(NL80211_ATTR_VENDOR_ID); | |
407 | subcmd = event.get_u32(NL80211_ATTR_VENDOR_SUBCMD); | |
408 | ALOGI("event received %s, vendor_id = 0x%0x, subcmd = 0x%0x", | |
409 | event.get_cmdString(), vendor_id, subcmd); | |
7753f181 DD |
410 | } |
411 | ||
412 | //ALOGI("event received %s, vendor_id = 0x%0x", event.get_cmdString(), vendor_id); | |
413 | //event.log(); | |
414 | ||
7753f181 | 415 | pthread_mutex_lock(&info->cb_lock); |
3c0c6ab1 | 416 | |
7753f181 DD |
417 | for (int i = 0; i < info->num_event_cb; i++) { |
418 | if (cmd == info->event_cb[i].nl_cmd) { | |
419 | if (cmd == NL80211_CMD_VENDOR | |
420 | && ((vendor_id != info->event_cb[i].vendor_id) | |
421 | || (subcmd != info->event_cb[i].vendor_subcmd))) | |
422 | { | |
423 | /* event for a different vendor, ignore it */ | |
424 | continue; | |
425 | } | |
426 | ||
427 | cb_info *cbi = &(info->event_cb[i]); | |
428 | nl_recvmsg_msg_cb_t cb_func = cbi->cb_func; | |
429 | void *cb_arg = cbi->cb_arg; | |
430 | WifiCommand *cmd = (WifiCommand *)cbi->cb_arg; | |
431 | if (cmd != NULL) { | |
432 | cmd->addRef(); | |
433 | } | |
434 | ||
435 | pthread_mutex_unlock(&info->cb_lock); | |
436 | if (cb_func) | |
437 | (*cb_func)(msg, cb_arg); | |
438 | if (cmd != NULL) { | |
439 | cmd->releaseRef(); | |
440 | } | |
441 | ||
442 | return NL_OK; | |
443 | } | |
444 | } | |
445 | ||
446 | pthread_mutex_unlock(&info->cb_lock); | |
447 | return NL_OK; | |
448 | } | |
449 | ||
450 | /////////////////////////////////////////////////////////////////////////////////////// | |
451 | ||
452 | class GetMulticastIdCommand : public WifiCommand | |
453 | { | |
454 | private: | |
455 | const char *mName; | |
456 | const char *mGroup; | |
457 | int mId; | |
458 | public: | |
459 | GetMulticastIdCommand(wifi_handle handle, const char *name, const char *group) | |
460 | : WifiCommand(handle, 0) | |
461 | { | |
462 | mName = name; | |
463 | mGroup = group; | |
464 | mId = -1; | |
465 | } | |
466 | ||
467 | int getId() { | |
468 | return mId; | |
469 | } | |
470 | ||
471 | virtual int create() { | |
472 | int nlctrlFamily = genl_ctrl_resolve(mInfo->cmd_sock, "nlctrl"); | |
7753f181 DD |
473 | int ret = mMsg.create(nlctrlFamily, CTRL_CMD_GETFAMILY, 0, 0); |
474 | if (ret < 0) { | |
475 | return ret; | |
476 | } | |
477 | ret = mMsg.put_string(CTRL_ATTR_FAMILY_NAME, mName); | |
478 | return ret; | |
479 | } | |
480 | ||
481 | virtual int handleResponse(WifiEvent& reply) { | |
7753f181 | 482 | struct nlattr **tb = reply.attributes(); |
7753f181 DD |
483 | struct nlattr *mcgrp = NULL; |
484 | int i; | |
485 | ||
486 | if (!tb[CTRL_ATTR_MCAST_GROUPS]) { | |
487 | ALOGE("No multicast groups found"); | |
488 | return NL_SKIP; | |
7753f181 DD |
489 | } |
490 | ||
491 | for_each_attr(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { | |
492 | ||
7753f181 DD |
493 | struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; |
494 | nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, (nlattr *)nla_data(mcgrp), | |
495 | nla_len(mcgrp), NULL); | |
496 | if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || !tb2[CTRL_ATTR_MCAST_GRP_ID]) { | |
497 | continue; | |
498 | } | |
499 | ||
500 | char *grpName = (char *)nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]); | |
501 | int grpNameLen = nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME]); | |
502 | ||
7753f181 DD |
503 | if (strncmp(grpName, mGroup, grpNameLen) != 0) |
504 | continue; | |
505 | ||
506 | mId = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); | |
507 | break; | |
508 | } | |
509 | ||
510 | return NL_SKIP; | |
511 | } | |
512 | ||
513 | }; | |
514 | ||
515 | class SetPnoMacAddrOuiCommand : public WifiCommand { | |
516 | ||
517 | private: | |
518 | byte *mOui; | |
519 | feature_set *fset; | |
520 | feature_set *feature_matrix; | |
521 | int *fm_size; | |
522 | int set_size_max; | |
523 | public: | |
524 | SetPnoMacAddrOuiCommand(wifi_interface_handle handle, oui scan_oui) | |
525 | : WifiCommand(handle, 0) | |
526 | { | |
527 | mOui = scan_oui; | |
528 | } | |
529 | ||
530 | int createRequest(WifiRequest& request, int subcmd, byte *scan_oui) { | |
531 | int result = request.create(GOOGLE_OUI, subcmd); | |
532 | if (result < 0) { | |
533 | return result; | |
534 | } | |
535 | ||
536 | nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA); | |
537 | result = request.put(ANDR_WIFI_ATTRIBUTE_PNO_RANDOM_MAC_OUI, scan_oui, DOT11_OUI_LEN); | |
538 | if (result < 0) { | |
539 | return result; | |
540 | } | |
541 | ||
542 | request.attr_end(data); | |
543 | return WIFI_SUCCESS; | |
544 | ||
545 | } | |
546 | ||
547 | int start() { | |
7753f181 DD |
548 | WifiRequest request(familyId(), ifaceId()); |
549 | int result = createRequest(request, SLSI_NL80211_VENDOR_SUBCMD_SET_GSCAN_OUI, mOui); | |
550 | if (result != WIFI_SUCCESS) { | |
551 | ALOGE("failed to create request; result = %d", result); | |
552 | return result; | |
553 | } | |
554 | ||
555 | result = requestResponse(request); | |
556 | if (result != WIFI_SUCCESS) { | |
557 | ALOGE("failed to set scanning mac OUI; result = %d", result); | |
558 | } | |
559 | ||
560 | return result; | |
561 | } | |
562 | protected: | |
563 | virtual int handleResponse(WifiEvent& reply) { | |
7753f181 DD |
564 | /* Nothing to do on response! */ |
565 | return NL_SKIP; | |
566 | } | |
567 | }; | |
568 | ||
569 | class SetNodfsCommand : public WifiCommand { | |
570 | ||
571 | private: | |
572 | u32 mNoDfs; | |
573 | public: | |
574 | SetNodfsCommand(wifi_interface_handle handle, u32 nodfs) | |
575 | : WifiCommand(handle, 0) { | |
576 | mNoDfs = nodfs; | |
577 | } | |
578 | virtual int create() { | |
579 | int ret; | |
580 | ||
581 | ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_NODFS); | |
582 | if (ret < 0) { | |
583 | ALOGE("Can't create message to send to driver - %d", ret); | |
584 | return ret; | |
585 | } | |
586 | ||
587 | nlattr *data = mMsg.attr_start(NL80211_ATTR_VENDOR_DATA); | |
588 | ret = mMsg.put_u32(ATTR_NODFS_VALUE, mNoDfs); | |
589 | if (ret < 0) { | |
590 | return ret; | |
591 | } | |
592 | ||
593 | mMsg.attr_end(data); | |
594 | return WIFI_SUCCESS; | |
595 | } | |
596 | }; | |
597 | ||
f425b4a8 PG |
598 | class SetRSSIMonitorCommand : public WifiCommand { |
599 | private: | |
600 | s8 mMax_rssi; | |
601 | s8 mMin_rssi; | |
602 | wifi_rssi_event_handler mHandler; | |
603 | public: | |
604 | SetRSSIMonitorCommand(wifi_request_id id, wifi_interface_handle handle, | |
605 | s8 max_rssi, s8 min_rssi, wifi_rssi_event_handler eh) | |
606 | : WifiCommand(handle, id), mMax_rssi(max_rssi), mMin_rssi | |
607 | (min_rssi), mHandler(eh) | |
608 | { | |
609 | } | |
610 | int createRequest(WifiRequest& request, int enable) { | |
611 | int result = request.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_RSSI_MONITOR); | |
612 | if (result < 0) { | |
613 | return result; | |
614 | } | |
615 | ||
616 | nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA); | |
617 | result = request.put_u8(RSSI_MONITOR_ATTRIBUTE_MAX_RSSI, (enable ? mMax_rssi: 0)); | |
618 | if (result < 0) { | |
619 | return result; | |
620 | } | |
c0b490a2 | 621 | |
f425b4a8 PG |
622 | result = request.put_u8(RSSI_MONITOR_ATTRIBUTE_MIN_RSSI, (enable? mMin_rssi: 0)); |
623 | if (result < 0) { | |
624 | return result; | |
625 | } | |
626 | result = request.put_u8(RSSI_MONITOR_ATTRIBUTE_START, enable); | |
627 | if (result < 0) { | |
628 | return result; | |
629 | } | |
630 | request.attr_end(data); | |
631 | return result; | |
632 | } | |
633 | ||
634 | int start() { | |
635 | WifiRequest request(familyId(), ifaceId()); | |
636 | int result = createRequest(request, 1); | |
637 | if (result < 0) { | |
638 | return result; | |
639 | } | |
640 | result = requestResponse(request); | |
641 | if (result < 0) { | |
642 | ALOGI("Failed to set RSSI Monitor, result = %d", result); | |
643 | return result; | |
644 | } | |
645 | ALOGI("Successfully set RSSI monitoring"); | |
646 | registerVendorHandler(GOOGLE_OUI, WIFI_RSSI_REPORT_EVENT); | |
647 | ||
f425b4a8 PG |
648 | return result; |
649 | } | |
650 | ||
651 | virtual int cancel() { | |
652 | ||
653 | WifiRequest request(familyId(), ifaceId()); | |
654 | int result = createRequest(request, 0); | |
655 | if (result != WIFI_SUCCESS) { | |
656 | ALOGE("failed to create request; result = %d", result); | |
657 | } else { | |
658 | result = requestResponse(request); | |
659 | if (result != WIFI_SUCCESS) { | |
660 | ALOGE("failed to stop RSSI monitoring = %d", result); | |
661 | } | |
662 | } | |
663 | unregisterVendorHandler(GOOGLE_OUI, WIFI_RSSI_REPORT_EVENT); | |
664 | return WIFI_SUCCESS; | |
665 | } | |
666 | ||
667 | virtual int handleResponse(WifiEvent& reply) { | |
668 | /* Nothing to do on response! */ | |
669 | return NL_SKIP; | |
670 | } | |
671 | ||
672 | virtual int handleEvent(WifiEvent& event) { | |
f425b4a8 PG |
673 | |
674 | nlattr *vendor_data = event.get_attribute(NL80211_ATTR_VENDOR_DATA); | |
675 | int len = event.get_vendor_data_len(); | |
676 | ||
677 | if (vendor_data == NULL || len == 0) { | |
678 | ALOGI("RSSI monitor: No data"); | |
679 | return NL_SKIP; | |
680 | } | |
681 | ||
682 | typedef struct { | |
683 | s8 cur_rssi; | |
684 | mac_addr BSSID; | |
685 | } rssi_monitor_evt; | |
686 | ||
687 | rssi_monitor_evt *data = (rssi_monitor_evt *)event.get_vendor_data(); | |
688 | ||
689 | if (*mHandler.on_rssi_threshold_breached) { | |
690 | (*mHandler.on_rssi_threshold_breached)(id(), data->BSSID, data->cur_rssi); | |
691 | } else { | |
692 | ALOGW("No RSSI monitor handler registered"); | |
693 | } | |
694 | ||
695 | return NL_SKIP; | |
696 | } | |
697 | ||
698 | }; | |
699 | ||
1fdbd4c1 MG |
700 | class SetCountryCodeCommand : public WifiCommand { |
701 | private: | |
702 | const char *mCountryCode; | |
703 | public: | |
704 | SetCountryCodeCommand(wifi_interface_handle handle, const char *country_code) | |
705 | : WifiCommand(handle, 0) { | |
706 | mCountryCode = country_code; | |
707 | } | |
708 | virtual int create() { | |
709 | int ret; | |
710 | ||
711 | ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_COUNTRY_CODE); | |
712 | if (ret < 0) { | |
713 | ALOGE("Can't create message to send to driver - %d", ret); | |
714 | return ret; | |
715 | } | |
716 | ||
717 | nlattr *data = mMsg.attr_start(NL80211_ATTR_VENDOR_DATA); | |
718 | ret = mMsg.put_string(ATTR_COUNTRY_CODE, mCountryCode); | |
719 | if (ret < 0) { | |
720 | return ret; | |
721 | } | |
722 | ||
723 | mMsg.attr_end(data); | |
724 | return WIFI_SUCCESS; | |
725 | ||
726 | } | |
727 | }; | |
728 | ||
0318783f | 729 | class GetFeatureSetCommand : public WifiCommand { |
f425b4a8 | 730 | |
0318783f | 731 | private: |
0fe9bfaf | 732 | |
0318783f | 733 | feature_set *fset; |
0fe9bfaf | 734 | |
0318783f JPS |
735 | public: |
736 | GetFeatureSetCommand(wifi_interface_handle handle, feature_set *set) | |
737 | : WifiCommand(handle, 0) | |
738 | { | |
739 | fset = set; | |
740 | } | |
741 | ||
742 | virtual int create() { | |
743 | int ret; | |
744 | ||
745 | ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_GET_FEATURE_SET); | |
746 | if (ret < 0) { | |
747 | ALOGE("create failed - %d", ret); | |
748 | } | |
749 | ||
750 | return ret; | |
751 | } | |
752 | ||
753 | protected: | |
754 | virtual int handleResponse(WifiEvent& reply) { | |
755 | ||
756 | int id = reply.get_vendor_id(); | |
757 | int subcmd = reply.get_vendor_subcmd(); | |
758 | ||
759 | if (reply.get_cmd() != NL80211_CMD_VENDOR) { | |
760 | ALOGD("Ignore reply; cmd = %d", reply.get_cmd()); | |
761 | return NL_SKIP; | |
762 | } | |
763 | ||
764 | nlattr *vendor_data = reply.get_attribute(NL80211_ATTR_VENDOR_DATA); | |
765 | int len = reply.get_vendor_data_len(); | |
766 | ||
767 | if (vendor_data == NULL || len == 0) { | |
768 | ALOGE("vendor data in GetFeatureSetCommand missing!!"); | |
769 | return NL_SKIP; | |
770 | } | |
771 | ||
772 | void *data = reply.get_vendor_data(); | |
773 | if(!fset) { | |
774 | ALOGE("feature_set Pointer not set"); | |
775 | return NL_SKIP; | |
776 | } | |
777 | memcpy(fset, data, min(len, (int) sizeof(*fset))); | |
778 | return NL_OK; | |
779 | } | |
780 | ||
781 | }; | |
f425b4a8 | 782 | |
7753f181 DD |
783 | static int wifi_get_multicast_id(wifi_handle handle, const char *name, const char *group) |
784 | { | |
785 | GetMulticastIdCommand cmd(handle, name, group); | |
786 | int res = cmd.requestResponse(); | |
787 | if (res < 0) | |
788 | return res; | |
789 | else | |
790 | return cmd.getId(); | |
791 | } | |
792 | ||
793 | ///////////////////////////////////////////////////////////////////////// | |
794 | ||
795 | static bool is_wifi_interface(const char *name) | |
796 | { | |
797 | if (strncmp(name, "wlan", 4) != 0 && strncmp(name, "p2p", 3) != 0) { | |
798 | /* not a wifi interface; ignore it */ | |
799 | return false; | |
800 | } else { | |
801 | return true; | |
802 | } | |
803 | } | |
804 | ||
805 | static int get_interface(const char *name, interface_info *info) | |
806 | { | |
807 | strcpy(info->name, name); | |
808 | info->id = if_nametoindex(name); | |
7753f181 DD |
809 | return WIFI_SUCCESS; |
810 | } | |
811 | ||
812 | wifi_error wifi_init_interfaces(wifi_handle handle) | |
813 | { | |
814 | hal_info *info = (hal_info *)handle; | |
7753f181 DD |
815 | struct dirent *de; |
816 | ||
817 | DIR *d = opendir("/sys/class/net"); | |
818 | if (d == 0) | |
819 | return WIFI_ERROR_UNKNOWN; | |
820 | ||
821 | int n = 0; | |
822 | while ((de = readdir(d))) { | |
823 | if (de->d_name[0] == '.') | |
824 | continue; | |
825 | if (is_wifi_interface(de->d_name) ) { | |
826 | n++; | |
827 | } | |
828 | } | |
829 | ||
830 | closedir(d); | |
831 | ||
832 | d = opendir("/sys/class/net"); | |
833 | if (d == 0) | |
834 | return WIFI_ERROR_UNKNOWN; | |
835 | ||
836 | info->interfaces = (interface_info **)malloc(sizeof(interface_info *) * n); | |
837 | ||
838 | int i = 0; | |
839 | while ((de = readdir(d))) { | |
840 | if (de->d_name[0] == '.') | |
841 | continue; | |
842 | if (is_wifi_interface(de->d_name)) { | |
843 | interface_info *ifinfo = (interface_info *)malloc(sizeof(interface_info)); | |
844 | if (get_interface(de->d_name, ifinfo) != WIFI_SUCCESS) { | |
845 | free(ifinfo); | |
846 | continue; | |
847 | } | |
848 | ifinfo->handle = handle; | |
849 | info->interfaces[i] = ifinfo; | |
850 | i++; | |
851 | } | |
852 | } | |
853 | ||
854 | closedir(d); | |
855 | ||
856 | info->num_interfaces = n; | |
857 | return WIFI_SUCCESS; | |
858 | } | |
859 | ||
860 | wifi_error wifi_get_ifaces(wifi_handle handle, int *num, wifi_interface_handle **interfaces) | |
861 | { | |
862 | hal_info *info = (hal_info *)handle; | |
863 | ||
864 | *interfaces = (wifi_interface_handle *)info->interfaces; | |
865 | *num = info->num_interfaces; | |
866 | ||
867 | return WIFI_SUCCESS; | |
868 | } | |
869 | ||
870 | wifi_error wifi_get_iface_name(wifi_interface_handle handle, char *name, size_t size) | |
871 | { | |
872 | interface_info *info = (interface_info *)handle; | |
873 | strcpy(name, info->name); | |
874 | return WIFI_SUCCESS; | |
875 | } | |
876 | ||
7753f181 DD |
877 | wifi_error wifi_get_concurrency_matrix(wifi_interface_handle handle, int set_size_max, |
878 | feature_set set[], int *set_size) | |
879 | { | |
880 | return WIFI_ERROR_NOT_SUPPORTED; | |
881 | } | |
882 | ||
883 | wifi_error wifi_set_scanning_mac_oui(wifi_interface_handle handle, oui scan_oui) | |
884 | { | |
885 | SetPnoMacAddrOuiCommand command(handle, scan_oui); | |
886 | return (wifi_error)command.start(); | |
887 | ||
888 | } | |
889 | ||
890 | wifi_error wifi_set_nodfs_flag(wifi_interface_handle handle, u32 nodfs) | |
891 | { | |
892 | SetNodfsCommand command(handle, nodfs); | |
893 | return (wifi_error) command.requestResponse(); | |
894 | } | |
895 | ||
f425b4a8 PG |
896 | static wifi_error wifi_start_rssi_monitoring(wifi_request_id id, wifi_interface_handle |
897 | iface, s8 max_rssi, s8 min_rssi, wifi_rssi_event_handler eh) | |
898 | { | |
899 | ALOGD("Start RSSI monitor %d", id); | |
900 | wifi_handle handle = getWifiHandle(iface); | |
901 | SetRSSIMonitorCommand *cmd = new SetRSSIMonitorCommand(id, iface, max_rssi, min_rssi, eh); | |
902 | wifi_register_cmd(handle, id, cmd); | |
903 | ||
904 | wifi_error result = (wifi_error)cmd->start(); | |
905 | if (result != WIFI_SUCCESS) { | |
906 | wifi_unregister_cmd(handle, id); | |
907 | } | |
908 | return result; | |
909 | } | |
910 | ||
911 | ||
912 | static wifi_error wifi_stop_rssi_monitoring(wifi_request_id id, wifi_interface_handle iface) | |
913 | { | |
914 | ALOGD("Stopping RSSI monitor"); | |
915 | ||
916 | if(id == -1) { | |
917 | wifi_rssi_event_handler handler; | |
918 | wifi_handle handle = getWifiHandle(iface); | |
919 | memset(&handler, 0, sizeof(handler)); | |
920 | SetRSSIMonitorCommand *cmd = new SetRSSIMonitorCommand(id, iface, | |
921 | 0, 0, handler); | |
922 | cmd->cancel(); | |
923 | cmd->releaseRef(); | |
924 | return WIFI_SUCCESS; | |
925 | } | |
926 | return wifi_cancel_cmd(id, iface); | |
927 | } | |
928 | ||
0318783f JPS |
929 | wifi_error wifi_get_supported_feature_set(wifi_interface_handle handle, feature_set *set) |
930 | { | |
931 | GetFeatureSetCommand command(handle, set); | |
932 | return (wifi_error) command.requestResponse(); | |
933 | } | |
934 | ||
1fdbd4c1 MG |
935 | wifi_error wifi_set_country_code(wifi_interface_handle handle, const char *country_code) |
936 | { | |
937 | SetCountryCodeCommand command(handle, country_code); | |
938 | return (wifi_error) command.requestResponse(); | |
939 | } | |
940 | ||
7753f181 | 941 | ///////////////////////////////////////////////////////////////////////////// |