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7753f181 DD |
1 | #include <errno.h> |
2 | #include <stdint.h> | |
3 | #include <fcntl.h> | |
4 | #include <sys/socket.h> | |
5 | #include <netlink/genl/genl.h> | |
6 | #include <netlink/genl/family.h> | |
7 | #include <netlink/genl/ctrl.h> | |
8 | #include <linux/rtnetlink.h> | |
9 | #include <netpacket/packet.h> | |
10 | #include <linux/filter.h> | |
11 | #include <linux/errqueue.h> | |
12 | ||
13 | #include <linux/pkt_sched.h> | |
14 | #include <netlink/object-api.h> | |
15 | #include <netlink/netlink.h> | |
16 | #include <netlink/socket.h> | |
17 | #include <netlink/attr.h> | |
18 | #include <netlink/handlers.h> | |
19 | #include <netlink/msg.h> | |
20 | ||
21 | #include <dirent.h> | |
22 | #include <net/if.h> | |
23 | ||
24 | #include "sync.h" | |
25 | ||
26 | #define LOG_TAG "WifiHAL" | |
27 | ||
28 | #include <utils/Log.h> | |
7753f181 DD |
29 | #include "wifi_hal.h" |
30 | #include "common.h" | |
31 | #include "cpp_bindings.h" | |
32 | ||
33 | ||
34 | #define WIFI_HAL_CMD_SOCK_PORT 644 | |
35 | #define WIFI_HAL_EVENT_SOCK_PORT 645 | |
36 | ||
37 | #define FEATURE_SET 0 | |
38 | #define FEATURE_SET_MATRIX 1 | |
39 | #define ATTR_NODFS_VALUE 3 | |
40 | ||
41 | static void internal_event_handler(wifi_handle handle, int events); | |
42 | static int internal_no_seq_check(nl_msg *msg, void *arg); | |
43 | static int internal_valid_message_handler(nl_msg *msg, void *arg); | |
44 | static int wifi_get_multicast_id(wifi_handle handle, const char *name, const char *group); | |
45 | static int wifi_add_membership(wifi_handle handle, const char *group); | |
46 | static wifi_error wifi_init_interfaces(wifi_handle handle); | |
47 | ||
48 | typedef enum wifi_attr { | |
49 | ANDR_WIFI_ATTRIBUTE_NUM_FEATURE_SET, | |
50 | ANDR_WIFI_ATTRIBUTE_FEATURE_SET, | |
51 | ANDR_WIFI_ATTRIBUTE_PNO_RANDOM_MAC_OUI | |
52 | } wifi_attr_t; | |
53 | ||
f425b4a8 PG |
54 | enum wifi_rssi_monitor_attr { |
55 | RSSI_MONITOR_ATTRIBUTE_MAX_RSSI, | |
56 | RSSI_MONITOR_ATTRIBUTE_MIN_RSSI, | |
57 | RSSI_MONITOR_ATTRIBUTE_START, | |
58 | }; | |
59 | ||
60 | static wifi_error wifi_start_rssi_monitoring(wifi_request_id id, wifi_interface_handle | |
61 | iface, s8 max_rssi, s8 min_rssi, wifi_rssi_event_handler eh); | |
62 | static wifi_error wifi_stop_rssi_monitoring(wifi_request_id id, wifi_interface_handle iface); | |
63 | ||
7753f181 DD |
64 | /* Initialize/Cleanup */ |
65 | ||
66 | void wifi_socket_set_local_port(struct nl_sock *sock, uint32_t port) | |
67 | { | |
68 | uint32_t pid = getpid() & 0x3FFFFF; | |
69 | nl_socket_set_local_port(sock, pid + (port << 22)); | |
70 | } | |
71 | ||
72 | static nl_sock * wifi_create_nl_socket(int port) | |
73 | { | |
74 | ALOGI("Creating socket"); | |
75 | struct nl_sock *sock = nl_socket_alloc(); | |
76 | if (sock == NULL) { | |
77 | ALOGE("Could not create handle"); | |
78 | return NULL; | |
79 | } | |
80 | ||
81 | wifi_socket_set_local_port(sock, port); | |
82 | ||
de2a8779 | 83 | ALOGI("Connecting socket"); |
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; | |
acc9b163 | 122 | #ifdef ANDROID_N_EPNO |
6ff2d683 JPS |
123 | fn->wifi_set_epno_list = wifi_set_epno_list; |
124 | fn->wifi_set_passpoint_list = wifi_set_passpoint_list; | |
125 | fn->wifi_reset_passpoint_list = wifi_reset_passpoint_list; | |
acc9b163 | 126 | #endif |
10d7569e | 127 | fn->wifi_set_bssid_blacklist = wifi_set_bssid_blacklist; |
f425b4a8 PG |
128 | fn->wifi_start_rssi_monitoring = wifi_start_rssi_monitoring; |
129 | fn->wifi_stop_rssi_monitoring = wifi_stop_rssi_monitoring; | |
d583845d | 130 | fn->wifi_set_link_stats = wifi_set_link_stats; |
058cae5f | 131 | fn->wifi_get_link_stats = wifi_get_link_stats; |
d583845d | 132 | fn->wifi_clear_link_stats = wifi_clear_link_stats; |
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 | ||
150 | ALOGI("Creating socket"); | |
151 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, info->cleanup_socks) == -1) { | |
152 | ALOGE("Could not create cleanup sockets"); | |
153 | free(info); | |
154 | return WIFI_ERROR_UNKNOWN; | |
155 | } | |
156 | ||
157 | struct nl_sock *cmd_sock = wifi_create_nl_socket(WIFI_HAL_CMD_SOCK_PORT); | |
158 | if (cmd_sock == NULL) { | |
159 | ALOGE("Could not create handle"); | |
160 | free(info); | |
161 | return WIFI_ERROR_UNKNOWN; | |
162 | } | |
163 | ||
164 | struct nl_sock *event_sock = wifi_create_nl_socket(WIFI_HAL_EVENT_SOCK_PORT); | |
165 | if (event_sock == NULL) { | |
166 | ALOGE("Could not create handle"); | |
167 | nl_socket_free(cmd_sock); | |
168 | free(info); | |
169 | return WIFI_ERROR_UNKNOWN; | |
170 | } | |
171 | ||
172 | struct nl_cb *cb = nl_socket_get_cb(event_sock); | |
173 | if (cb == NULL) { | |
174 | ALOGE("Could not create handle"); | |
175 | nl_socket_free(cmd_sock); | |
176 | nl_socket_free(event_sock); | |
177 | free(info); | |
178 | return WIFI_ERROR_UNKNOWN; | |
179 | } | |
180 | ||
181 | // ALOGI("cb->refcnt = %d", cb->cb_refcnt); | |
182 | nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, internal_no_seq_check, info); | |
183 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, internal_valid_message_handler, info); | |
184 | nl_cb_put(cb); | |
185 | ||
186 | info->cmd_sock = cmd_sock; | |
187 | info->event_sock = event_sock; | |
188 | info->clean_up = false; | |
189 | info->in_event_loop = false; | |
190 | ||
191 | info->event_cb = (cb_info *)malloc(sizeof(cb_info) * DEFAULT_EVENT_CB_SIZE); | |
192 | info->alloc_event_cb = DEFAULT_EVENT_CB_SIZE; | |
193 | info->num_event_cb = 0; | |
194 | ||
195 | info->cmd = (cmd_info *)malloc(sizeof(cmd_info) * DEFAULT_CMD_SIZE); | |
196 | info->alloc_cmd = DEFAULT_CMD_SIZE; | |
197 | info->num_cmd = 0; | |
198 | ||
199 | info->nl80211_family_id = genl_ctrl_resolve(cmd_sock, "nl80211"); | |
200 | if (info->nl80211_family_id < 0) { | |
201 | ALOGE("Could not resolve nl80211 familty id"); | |
202 | nl_socket_free(cmd_sock); | |
203 | nl_socket_free(event_sock); | |
204 | free(info); | |
205 | return WIFI_ERROR_UNKNOWN; | |
206 | } | |
207 | ||
208 | pthread_mutex_init(&info->cb_lock, NULL); | |
209 | ||
210 | *handle = (wifi_handle) info; | |
211 | ALOGD("wifi_initialize, handle = %p\n", handle); | |
212 | ALOGD("wifi_initialize, *handle = %p\n", *handle); | |
213 | ALOGD("wifi_initialize, info = %p\n", info); | |
214 | ALOGD("wifi_initialize, *info = %pn", *info); | |
215 | wifi_add_membership(*handle, "scan"); | |
216 | wifi_add_membership(*handle, "mlme"); | |
217 | wifi_add_membership(*handle, "regulatory"); | |
218 | wifi_add_membership(*handle, "vendor"); | |
219 | ||
220 | wifi_init_interfaces(*handle); | |
221 | ALOGD("Found %d interfaces", info->num_interfaces); | |
222 | ||
223 | ||
224 | ALOGI("Initialized Wifi HAL Successfully; vendor cmd = %d", NL80211_CMD_VENDOR); | |
225 | return WIFI_SUCCESS; | |
226 | } | |
227 | ||
228 | static int wifi_add_membership(wifi_handle handle, const char *group) | |
229 | { | |
230 | hal_info *info = getHalInfo(handle); | |
231 | ||
232 | int id = wifi_get_multicast_id(handle, "nl80211", group); | |
233 | if (id < 0) { | |
234 | ALOGE("Could not find group %s", group); | |
235 | return id; | |
236 | } | |
237 | ||
238 | int ret = nl_socket_add_membership(info->event_sock, id); | |
239 | if (ret < 0) { | |
240 | ALOGE("Could not add membership to group %s", group); | |
241 | } | |
242 | ||
243 | ALOGI("Successfully added membership for group %s", group); | |
244 | return ret; | |
245 | } | |
246 | ||
247 | static void internal_cleaned_up_handler(wifi_handle handle) | |
248 | { | |
249 | hal_info *info = getHalInfo(handle); | |
250 | wifi_cleaned_up_handler cleaned_up_handler = info->cleaned_up_handler; | |
251 | ||
252 | if (info->cmd_sock != 0) { | |
253 | close(info->cleanup_socks[0]); | |
254 | close(info->cleanup_socks[1]); | |
255 | nl_socket_free(info->cmd_sock); | |
256 | nl_socket_free(info->event_sock); | |
257 | info->cmd_sock = NULL; | |
258 | info->event_sock = NULL; | |
259 | } | |
260 | ||
261 | (*cleaned_up_handler)(handle); | |
262 | pthread_mutex_destroy(&info->cb_lock); | |
263 | free(info); | |
264 | ||
265 | ALOGI("Internal cleanup completed"); | |
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); | |
285 | if (strncmp(buf, "Done", 4) == 0) { | |
286 | ALOGE("Event processing terminated"); | |
287 | } else { | |
288 | ALOGD("Rx'ed %s", buf); | |
289 | } | |
290 | } | |
291 | info->clean_up = true; | |
292 | pthread_mutex_lock(&info->cb_lock); | |
293 | ||
294 | int bad_commands = 0; | |
295 | ||
7753f181 DD |
296 | while (info->num_cmd > bad_commands) { |
297 | int num_cmd = info->num_cmd; | |
298 | cmd_info *cmdi = &(info->cmd[bad_commands]); | |
299 | WifiCommand *cmd = cmdi->cmd; | |
300 | if (cmd != NULL) { | |
301 | pthread_mutex_unlock(&info->cb_lock); | |
302 | cmd->cancel(); | |
303 | pthread_mutex_lock(&info->cb_lock); | |
304 | /* release reference added when command is saved */ | |
305 | cmd->releaseRef(); | |
306 | if (num_cmd == info->num_cmd) { | |
307 | bad_commands++; | |
308 | } | |
309 | } | |
310 | } | |
311 | ||
312 | for (int i = 0; i < info->num_event_cb; i++) { | |
313 | cb_info *cbi = &(info->event_cb[i]); | |
314 | WifiCommand *cmd = (WifiCommand *)cbi->cb_arg; | |
315 | ALOGE("Leaked command %p", cmd); | |
316 | } | |
317 | pthread_mutex_unlock(&info->cb_lock); | |
318 | internal_cleaned_up_handler(handle); | |
319 | } | |
320 | ||
321 | static int internal_pollin_handler(wifi_handle handle) | |
322 | { | |
323 | hal_info *info = getHalInfo(handle); | |
324 | ALOGI("even_loop info = %p", info); | |
325 | struct nl_cb *cb = nl_socket_get_cb(info->event_sock); | |
326 | int res = nl_recvmsgs(info->event_sock, cb); | |
327 | ALOGD("nl_recvmsgs returned %d", res); | |
328 | nl_cb_put(cb); | |
329 | return res; | |
330 | } | |
331 | ||
332 | /* Run event handler */ | |
333 | void wifi_event_loop(wifi_handle handle) | |
334 | { | |
335 | hal_info *info = getHalInfo(handle); | |
336 | ALOGI("even_loop info = %p", info); | |
337 | ALOGI("even_loop info = %p", handle); | |
338 | if (info->in_event_loop) { | |
339 | return; | |
340 | } else { | |
341 | info->in_event_loop = true; | |
342 | } | |
343 | ||
344 | pollfd pfd[2]; | |
345 | memset(&pfd[0], 0, sizeof(pollfd) * 2); | |
346 | ||
347 | pfd[0].fd = nl_socket_get_fd(info->event_sock); | |
348 | pfd[0].events = POLLIN; | |
349 | pfd[1].fd = info->cleanup_socks[1]; | |
350 | pfd[1].events = POLLIN; | |
351 | ||
352 | char buf[2048]; | |
353 | ||
354 | do { | |
355 | int timeout = -1; /* Infinite timeout */ | |
356 | pfd[0].revents = 0; | |
357 | pfd[1].revents = 0; | |
358 | int result = poll(pfd, 2, timeout); | |
359 | if (result < 0) { | |
360 | } else if (pfd[0].revents & POLLERR) { | |
361 | ALOGE("POLL Error; error no = %d", errno); | |
362 | int result2 = read(pfd[0].fd, buf, sizeof(buf)); | |
363 | ALOGE("Read after POLL returned %d, error no = %d", result2, errno); | |
364 | } else if (pfd[0].revents & POLLHUP) { | |
365 | ALOGE("Remote side hung up"); | |
366 | break; | |
367 | } else if (pfd[0].revents & POLLIN) { | |
368 | internal_pollin_handler(handle); | |
369 | } else if (pfd[1].revents & POLLIN) { | |
370 | memset(buf, 0, sizeof(buf)); | |
371 | int result2 = read(pfd[1].fd, buf, sizeof(buf)); | |
372 | ALOGE("%s: Read after POLL returned %d, error no = %d", __FUNCTION__, result2, errno); | |
373 | if (strncmp(buf, "Exit", 4) == 0) { | |
374 | ALOGD("Got a signal to exit!!!"); | |
375 | if (write(pfd[1].fd, "Done", 4) < 1) { | |
376 | ALOGE("could not write to the cleanup socket"); | |
377 | } | |
378 | break; | |
379 | } else { | |
380 | ALOGD("Rx'ed %s on the cleanup socket\n", buf); | |
381 | } | |
382 | } else { | |
383 | ALOGE("Unknown event - %0x, %0x", pfd[0].revents, pfd[1].revents); | |
384 | } | |
385 | } while (!info->clean_up); | |
386 | ALOGI("Exit %s", __FUNCTION__); | |
387 | } | |
388 | ||
389 | /////////////////////////////////////////////////////////////////////////////////////// | |
390 | ||
391 | static int internal_no_seq_check(struct nl_msg *msg, void *arg) | |
392 | { | |
393 | return NL_OK; | |
394 | } | |
395 | ||
396 | static int internal_valid_message_handler(nl_msg *msg, void *arg) | |
397 | { | |
398 | wifi_handle handle = (wifi_handle)arg; | |
399 | hal_info *info = getHalInfo(handle); | |
400 | ALOGI("even_loop info = %p", handle); | |
401 | ALOGD("internal_valid_message_handler, info = %p", info); | |
402 | ||
403 | WifiEvent event(msg); | |
404 | int res = event.parse(); | |
405 | if (res < 0) { | |
406 | ALOGE("Failed to parse event: %d", res); | |
407 | return NL_SKIP; | |
408 | } | |
409 | ||
410 | int cmd = event.get_cmd(); | |
411 | uint32_t vendor_id = 0; | |
412 | int subcmd = 0; | |
413 | ||
414 | if (cmd == NL80211_CMD_VENDOR) { | |
415 | vendor_id = event.get_u32(NL80211_ATTR_VENDOR_ID); | |
416 | subcmd = event.get_u32(NL80211_ATTR_VENDOR_SUBCMD); | |
417 | ALOGI("event received %s, vendor_id = 0x%0x, subcmd = 0x%0x", | |
418 | event.get_cmdString(), vendor_id, subcmd); | |
419 | } else { | |
420 | ALOGI("event received %s", event.get_cmdString()); | |
421 | } | |
422 | ||
423 | //ALOGI("event received %s, vendor_id = 0x%0x", event.get_cmdString(), vendor_id); | |
424 | //event.log(); | |
425 | ||
7753f181 | 426 | pthread_mutex_lock(&info->cb_lock); |
3c0c6ab1 | 427 | |
7753f181 DD |
428 | ALOGI("Number of events %d", info->num_event_cb); |
429 | ||
430 | for (int i = 0; i < info->num_event_cb; i++) { | |
431 | if (cmd == info->event_cb[i].nl_cmd) { | |
432 | if (cmd == NL80211_CMD_VENDOR | |
433 | && ((vendor_id != info->event_cb[i].vendor_id) | |
434 | || (subcmd != info->event_cb[i].vendor_subcmd))) | |
435 | { | |
436 | /* event for a different vendor, ignore it */ | |
437 | continue; | |
438 | } | |
439 | ||
440 | cb_info *cbi = &(info->event_cb[i]); | |
441 | nl_recvmsg_msg_cb_t cb_func = cbi->cb_func; | |
442 | void *cb_arg = cbi->cb_arg; | |
443 | WifiCommand *cmd = (WifiCommand *)cbi->cb_arg; | |
444 | if (cmd != NULL) { | |
445 | cmd->addRef(); | |
446 | } | |
447 | ||
448 | pthread_mutex_unlock(&info->cb_lock); | |
449 | if (cb_func) | |
450 | (*cb_func)(msg, cb_arg); | |
451 | if (cmd != NULL) { | |
452 | cmd->releaseRef(); | |
453 | } | |
454 | ||
455 | return NL_OK; | |
456 | } | |
457 | } | |
458 | ||
459 | pthread_mutex_unlock(&info->cb_lock); | |
460 | return NL_OK; | |
461 | } | |
462 | ||
463 | /////////////////////////////////////////////////////////////////////////////////////// | |
464 | ||
465 | class GetMulticastIdCommand : public WifiCommand | |
466 | { | |
467 | private: | |
468 | const char *mName; | |
469 | const char *mGroup; | |
470 | int mId; | |
471 | public: | |
472 | GetMulticastIdCommand(wifi_handle handle, const char *name, const char *group) | |
473 | : WifiCommand(handle, 0) | |
474 | { | |
475 | mName = name; | |
476 | mGroup = group; | |
477 | mId = -1; | |
478 | } | |
479 | ||
480 | int getId() { | |
481 | return mId; | |
482 | } | |
483 | ||
484 | virtual int create() { | |
485 | int nlctrlFamily = genl_ctrl_resolve(mInfo->cmd_sock, "nlctrl"); | |
486 | ALOGI("ctrl family = %d", nlctrlFamily); | |
487 | int ret = mMsg.create(nlctrlFamily, CTRL_CMD_GETFAMILY, 0, 0); | |
488 | if (ret < 0) { | |
489 | return ret; | |
490 | } | |
491 | ret = mMsg.put_string(CTRL_ATTR_FAMILY_NAME, mName); | |
492 | return ret; | |
493 | } | |
494 | ||
495 | virtual int handleResponse(WifiEvent& reply) { | |
496 | ||
497 | ALOGE("handling reponse in %s", __func__); | |
498 | ||
499 | struct nlattr **tb = reply.attributes(); | |
7753f181 DD |
500 | struct nlattr *mcgrp = NULL; |
501 | int i; | |
502 | ||
503 | if (!tb[CTRL_ATTR_MCAST_GROUPS]) { | |
504 | ALOGE("No multicast groups found"); | |
505 | return NL_SKIP; | |
506 | } else { | |
507 | ALOGE("Multicast groups attr size = %d", nla_len(tb[CTRL_ATTR_MCAST_GROUPS])); | |
508 | } | |
509 | ||
510 | for_each_attr(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { | |
511 | ||
512 | ALOGE("Processing group"); | |
513 | struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; | |
514 | nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, (nlattr *)nla_data(mcgrp), | |
515 | nla_len(mcgrp), NULL); | |
516 | if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || !tb2[CTRL_ATTR_MCAST_GRP_ID]) { | |
517 | continue; | |
518 | } | |
519 | ||
520 | char *grpName = (char *)nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]); | |
521 | int grpNameLen = nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME]); | |
522 | ||
523 | ALOGE("Found group name %s", grpName); | |
524 | ||
525 | if (strncmp(grpName, mGroup, grpNameLen) != 0) | |
526 | continue; | |
527 | ||
528 | mId = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); | |
529 | break; | |
530 | } | |
531 | ||
532 | return NL_SKIP; | |
533 | } | |
534 | ||
535 | }; | |
536 | ||
537 | class SetPnoMacAddrOuiCommand : public WifiCommand { | |
538 | ||
539 | private: | |
540 | byte *mOui; | |
541 | feature_set *fset; | |
542 | feature_set *feature_matrix; | |
543 | int *fm_size; | |
544 | int set_size_max; | |
545 | public: | |
546 | SetPnoMacAddrOuiCommand(wifi_interface_handle handle, oui scan_oui) | |
547 | : WifiCommand(handle, 0) | |
548 | { | |
549 | mOui = scan_oui; | |
550 | } | |
551 | ||
552 | int createRequest(WifiRequest& request, int subcmd, byte *scan_oui) { | |
553 | int result = request.create(GOOGLE_OUI, subcmd); | |
554 | if (result < 0) { | |
555 | return result; | |
556 | } | |
557 | ||
558 | nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA); | |
559 | result = request.put(ANDR_WIFI_ATTRIBUTE_PNO_RANDOM_MAC_OUI, scan_oui, DOT11_OUI_LEN); | |
560 | if (result < 0) { | |
561 | return result; | |
562 | } | |
563 | ||
564 | request.attr_end(data); | |
565 | return WIFI_SUCCESS; | |
566 | ||
567 | } | |
568 | ||
569 | int start() { | |
570 | ALOGD("Sending mac address OUI"); | |
571 | WifiRequest request(familyId(), ifaceId()); | |
572 | int result = createRequest(request, SLSI_NL80211_VENDOR_SUBCMD_SET_GSCAN_OUI, mOui); | |
573 | if (result != WIFI_SUCCESS) { | |
574 | ALOGE("failed to create request; result = %d", result); | |
575 | return result; | |
576 | } | |
577 | ||
578 | result = requestResponse(request); | |
579 | if (result != WIFI_SUCCESS) { | |
580 | ALOGE("failed to set scanning mac OUI; result = %d", result); | |
581 | } | |
582 | ||
583 | return result; | |
584 | } | |
585 | protected: | |
586 | virtual int handleResponse(WifiEvent& reply) { | |
587 | ALOGD("Request complete!"); | |
588 | /* Nothing to do on response! */ | |
589 | return NL_SKIP; | |
590 | } | |
591 | }; | |
592 | ||
593 | class SetNodfsCommand : public WifiCommand { | |
594 | ||
595 | private: | |
596 | u32 mNoDfs; | |
597 | public: | |
598 | SetNodfsCommand(wifi_interface_handle handle, u32 nodfs) | |
599 | : WifiCommand(handle, 0) { | |
600 | mNoDfs = nodfs; | |
601 | } | |
602 | virtual int create() { | |
603 | int ret; | |
604 | ||
605 | ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_NODFS); | |
606 | if (ret < 0) { | |
607 | ALOGE("Can't create message to send to driver - %d", ret); | |
608 | return ret; | |
609 | } | |
610 | ||
611 | nlattr *data = mMsg.attr_start(NL80211_ATTR_VENDOR_DATA); | |
612 | ret = mMsg.put_u32(ATTR_NODFS_VALUE, mNoDfs); | |
613 | if (ret < 0) { | |
614 | return ret; | |
615 | } | |
616 | ||
617 | mMsg.attr_end(data); | |
618 | return WIFI_SUCCESS; | |
619 | } | |
620 | }; | |
621 | ||
f425b4a8 PG |
622 | class SetRSSIMonitorCommand : public WifiCommand { |
623 | private: | |
624 | s8 mMax_rssi; | |
625 | s8 mMin_rssi; | |
626 | wifi_rssi_event_handler mHandler; | |
627 | public: | |
628 | SetRSSIMonitorCommand(wifi_request_id id, wifi_interface_handle handle, | |
629 | s8 max_rssi, s8 min_rssi, wifi_rssi_event_handler eh) | |
630 | : WifiCommand(handle, id), mMax_rssi(max_rssi), mMin_rssi | |
631 | (min_rssi), mHandler(eh) | |
632 | { | |
633 | } | |
634 | int createRequest(WifiRequest& request, int enable) { | |
635 | int result = request.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_RSSI_MONITOR); | |
636 | if (result < 0) { | |
637 | return result; | |
638 | } | |
639 | ||
640 | nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA); | |
641 | result = request.put_u8(RSSI_MONITOR_ATTRIBUTE_MAX_RSSI, (enable ? mMax_rssi: 0)); | |
642 | if (result < 0) { | |
643 | return result; | |
644 | } | |
645 | ALOGD("create request"); | |
646 | result = request.put_u8(RSSI_MONITOR_ATTRIBUTE_MIN_RSSI, (enable? mMin_rssi: 0)); | |
647 | if (result < 0) { | |
648 | return result; | |
649 | } | |
650 | result = request.put_u8(RSSI_MONITOR_ATTRIBUTE_START, enable); | |
651 | if (result < 0) { | |
652 | return result; | |
653 | } | |
654 | request.attr_end(data); | |
655 | return result; | |
656 | } | |
657 | ||
658 | int start() { | |
659 | WifiRequest request(familyId(), ifaceId()); | |
660 | int result = createRequest(request, 1); | |
661 | if (result < 0) { | |
662 | return result; | |
663 | } | |
664 | result = requestResponse(request); | |
665 | if (result < 0) { | |
666 | ALOGI("Failed to set RSSI Monitor, result = %d", result); | |
667 | return result; | |
668 | } | |
669 | ALOGI("Successfully set RSSI monitoring"); | |
670 | registerVendorHandler(GOOGLE_OUI, WIFI_RSSI_REPORT_EVENT); | |
671 | ||
672 | ||
673 | if (result < 0) { | |
674 | unregisterVendorHandler(GOOGLE_OUI, WIFI_RSSI_REPORT_EVENT); | |
675 | return result; | |
676 | } | |
677 | ALOGI("Done!"); | |
678 | return result; | |
679 | } | |
680 | ||
681 | virtual int cancel() { | |
682 | ||
683 | WifiRequest request(familyId(), ifaceId()); | |
684 | int result = createRequest(request, 0); | |
685 | if (result != WIFI_SUCCESS) { | |
686 | ALOGE("failed to create request; result = %d", result); | |
687 | } else { | |
688 | result = requestResponse(request); | |
689 | if (result != WIFI_SUCCESS) { | |
690 | ALOGE("failed to stop RSSI monitoring = %d", result); | |
691 | } | |
692 | } | |
693 | unregisterVendorHandler(GOOGLE_OUI, WIFI_RSSI_REPORT_EVENT); | |
694 | return WIFI_SUCCESS; | |
695 | } | |
696 | ||
697 | virtual int handleResponse(WifiEvent& reply) { | |
698 | /* Nothing to do on response! */ | |
699 | return NL_SKIP; | |
700 | } | |
701 | ||
702 | virtual int handleEvent(WifiEvent& event) { | |
703 | ALOGI("Got a RSSI monitor event"); | |
704 | ||
705 | nlattr *vendor_data = event.get_attribute(NL80211_ATTR_VENDOR_DATA); | |
706 | int len = event.get_vendor_data_len(); | |
707 | ||
708 | if (vendor_data == NULL || len == 0) { | |
709 | ALOGI("RSSI monitor: No data"); | |
710 | return NL_SKIP; | |
711 | } | |
712 | ||
713 | typedef struct { | |
714 | s8 cur_rssi; | |
715 | mac_addr BSSID; | |
716 | } rssi_monitor_evt; | |
717 | ||
718 | rssi_monitor_evt *data = (rssi_monitor_evt *)event.get_vendor_data(); | |
719 | ||
720 | if (*mHandler.on_rssi_threshold_breached) { | |
721 | (*mHandler.on_rssi_threshold_breached)(id(), data->BSSID, data->cur_rssi); | |
722 | } else { | |
723 | ALOGW("No RSSI monitor handler registered"); | |
724 | } | |
725 | ||
726 | return NL_SKIP; | |
727 | } | |
728 | ||
729 | }; | |
730 | ||
0318783f | 731 | class GetFeatureSetCommand : public WifiCommand { |
f425b4a8 | 732 | |
0318783f JPS |
733 | private: |
734 | int feature_type; | |
735 | feature_set *fset; | |
736 | int *fm_size; | |
737 | int set_size_max; | |
738 | public: | |
739 | GetFeatureSetCommand(wifi_interface_handle handle, feature_set *set) | |
740 | : WifiCommand(handle, 0) | |
741 | { | |
742 | fset = set; | |
743 | } | |
744 | ||
745 | virtual int create() { | |
746 | int ret; | |
747 | ||
748 | ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_GET_FEATURE_SET); | |
749 | if (ret < 0) { | |
750 | ALOGE("create failed - %d", ret); | |
751 | } | |
752 | ||
753 | return ret; | |
754 | } | |
755 | ||
756 | protected: | |
757 | virtual int handleResponse(WifiEvent& reply) { | |
758 | ||
759 | int id = reply.get_vendor_id(); | |
760 | int subcmd = reply.get_vendor_subcmd(); | |
761 | ||
762 | if (reply.get_cmd() != NL80211_CMD_VENDOR) { | |
763 | ALOGD("Ignore reply; cmd = %d", reply.get_cmd()); | |
764 | return NL_SKIP; | |
765 | } | |
766 | ||
767 | nlattr *vendor_data = reply.get_attribute(NL80211_ATTR_VENDOR_DATA); | |
768 | int len = reply.get_vendor_data_len(); | |
769 | ||
770 | if (vendor_data == NULL || len == 0) { | |
771 | ALOGE("vendor data in GetFeatureSetCommand missing!!"); | |
772 | return NL_SKIP; | |
773 | } | |
774 | ||
775 | void *data = reply.get_vendor_data(); | |
776 | if(!fset) { | |
777 | ALOGE("feature_set Pointer not set"); | |
778 | return NL_SKIP; | |
779 | } | |
780 | memcpy(fset, data, min(len, (int) sizeof(*fset))); | |
781 | return NL_OK; | |
782 | } | |
783 | ||
784 | }; | |
f425b4a8 | 785 | |
7753f181 DD |
786 | static int wifi_get_multicast_id(wifi_handle handle, const char *name, const char *group) |
787 | { | |
788 | GetMulticastIdCommand cmd(handle, name, group); | |
789 | int res = cmd.requestResponse(); | |
790 | if (res < 0) | |
791 | return res; | |
792 | else | |
793 | return cmd.getId(); | |
794 | } | |
795 | ||
796 | ///////////////////////////////////////////////////////////////////////// | |
797 | ||
798 | static bool is_wifi_interface(const char *name) | |
799 | { | |
800 | if (strncmp(name, "wlan", 4) != 0 && strncmp(name, "p2p", 3) != 0) { | |
801 | /* not a wifi interface; ignore it */ | |
802 | return false; | |
803 | } else { | |
804 | return true; | |
805 | } | |
806 | } | |
807 | ||
808 | static int get_interface(const char *name, interface_info *info) | |
809 | { | |
810 | strcpy(info->name, name); | |
811 | info->id = if_nametoindex(name); | |
812 | ALOGI("found an interface : %s, id = %d", name, info->id); | |
813 | return WIFI_SUCCESS; | |
814 | } | |
815 | ||
816 | wifi_error wifi_init_interfaces(wifi_handle handle) | |
817 | { | |
818 | hal_info *info = (hal_info *)handle; | |
819 | ALOGD("wifi_init_interfaces, info = %p", info); | |
820 | ||
821 | struct dirent *de; | |
822 | ||
823 | DIR *d = opendir("/sys/class/net"); | |
824 | if (d == 0) | |
825 | return WIFI_ERROR_UNKNOWN; | |
826 | ||
827 | int n = 0; | |
828 | while ((de = readdir(d))) { | |
829 | if (de->d_name[0] == '.') | |
830 | continue; | |
831 | if (is_wifi_interface(de->d_name) ) { | |
832 | n++; | |
833 | } | |
834 | } | |
835 | ||
836 | closedir(d); | |
837 | ||
838 | d = opendir("/sys/class/net"); | |
839 | if (d == 0) | |
840 | return WIFI_ERROR_UNKNOWN; | |
841 | ||
842 | info->interfaces = (interface_info **)malloc(sizeof(interface_info *) * n); | |
843 | ||
844 | int i = 0; | |
845 | while ((de = readdir(d))) { | |
846 | if (de->d_name[0] == '.') | |
847 | continue; | |
848 | if (is_wifi_interface(de->d_name)) { | |
849 | interface_info *ifinfo = (interface_info *)malloc(sizeof(interface_info)); | |
850 | if (get_interface(de->d_name, ifinfo) != WIFI_SUCCESS) { | |
851 | free(ifinfo); | |
852 | continue; | |
853 | } | |
854 | ifinfo->handle = handle; | |
855 | info->interfaces[i] = ifinfo; | |
856 | i++; | |
857 | } | |
858 | } | |
859 | ||
860 | closedir(d); | |
861 | ||
862 | info->num_interfaces = n; | |
863 | return WIFI_SUCCESS; | |
864 | } | |
865 | ||
866 | wifi_error wifi_get_ifaces(wifi_handle handle, int *num, wifi_interface_handle **interfaces) | |
867 | { | |
868 | hal_info *info = (hal_info *)handle; | |
869 | ||
870 | *interfaces = (wifi_interface_handle *)info->interfaces; | |
871 | *num = info->num_interfaces; | |
872 | ||
873 | return WIFI_SUCCESS; | |
874 | } | |
875 | ||
876 | wifi_error wifi_get_iface_name(wifi_interface_handle handle, char *name, size_t size) | |
877 | { | |
878 | interface_info *info = (interface_info *)handle; | |
879 | strcpy(name, info->name); | |
880 | return WIFI_SUCCESS; | |
881 | } | |
882 | ||
7753f181 DD |
883 | wifi_error wifi_get_concurrency_matrix(wifi_interface_handle handle, int set_size_max, |
884 | feature_set set[], int *set_size) | |
885 | { | |
886 | return WIFI_ERROR_NOT_SUPPORTED; | |
887 | } | |
888 | ||
889 | wifi_error wifi_set_scanning_mac_oui(wifi_interface_handle handle, oui scan_oui) | |
890 | { | |
891 | SetPnoMacAddrOuiCommand command(handle, scan_oui); | |
892 | return (wifi_error)command.start(); | |
893 | ||
894 | } | |
895 | ||
896 | wifi_error wifi_set_nodfs_flag(wifi_interface_handle handle, u32 nodfs) | |
897 | { | |
898 | SetNodfsCommand command(handle, nodfs); | |
899 | return (wifi_error) command.requestResponse(); | |
900 | } | |
901 | ||
f425b4a8 PG |
902 | static wifi_error wifi_start_rssi_monitoring(wifi_request_id id, wifi_interface_handle |
903 | iface, s8 max_rssi, s8 min_rssi, wifi_rssi_event_handler eh) | |
904 | { | |
905 | ALOGD("Start RSSI monitor %d", id); | |
906 | wifi_handle handle = getWifiHandle(iface); | |
907 | SetRSSIMonitorCommand *cmd = new SetRSSIMonitorCommand(id, iface, max_rssi, min_rssi, eh); | |
908 | wifi_register_cmd(handle, id, cmd); | |
909 | ||
910 | wifi_error result = (wifi_error)cmd->start(); | |
911 | if (result != WIFI_SUCCESS) { | |
912 | wifi_unregister_cmd(handle, id); | |
913 | } | |
914 | return result; | |
915 | } | |
916 | ||
917 | ||
918 | static wifi_error wifi_stop_rssi_monitoring(wifi_request_id id, wifi_interface_handle iface) | |
919 | { | |
920 | ALOGD("Stopping RSSI monitor"); | |
921 | ||
922 | if(id == -1) { | |
923 | wifi_rssi_event_handler handler; | |
924 | wifi_handle handle = getWifiHandle(iface); | |
925 | memset(&handler, 0, sizeof(handler)); | |
926 | SetRSSIMonitorCommand *cmd = new SetRSSIMonitorCommand(id, iface, | |
927 | 0, 0, handler); | |
928 | cmd->cancel(); | |
929 | cmd->releaseRef(); | |
930 | return WIFI_SUCCESS; | |
931 | } | |
932 | return wifi_cancel_cmd(id, iface); | |
933 | } | |
934 | ||
0318783f JPS |
935 | wifi_error wifi_get_supported_feature_set(wifi_interface_handle handle, feature_set *set) |
936 | { | |
937 | GetFeatureSetCommand command(handle, set); | |
938 | return (wifi_error) command.requestResponse(); | |
939 | } | |
940 | ||
7753f181 | 941 | ///////////////////////////////////////////////////////////////////////////// |