Commit | Line | Data |
---|---|---|
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> | |
29 | ||
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 | |
41 | ||
42 | static void internal_event_handler(wifi_handle handle, int events); | |
43 | static int internal_no_seq_check(nl_msg *msg, void *arg); | |
44 | static int internal_valid_message_handler(nl_msg *msg, void *arg); | |
45 | static int wifi_get_multicast_id(wifi_handle handle, const char *name, const char *group); | |
46 | static int wifi_add_membership(wifi_handle handle, const char *group); | |
47 | static wifi_error wifi_init_interfaces(wifi_handle handle); | |
48 | ||
49 | typedef enum wifi_attr { | |
50 | ANDR_WIFI_ATTRIBUTE_NUM_FEATURE_SET, | |
51 | ANDR_WIFI_ATTRIBUTE_FEATURE_SET, | |
52 | ANDR_WIFI_ATTRIBUTE_PNO_RANDOM_MAC_OUI | |
53 | } wifi_attr_t; | |
54 | ||
55 | /* Initialize/Cleanup */ | |
56 | ||
57 | void wifi_socket_set_local_port(struct nl_sock *sock, uint32_t port) | |
58 | { | |
59 | uint32_t pid = getpid() & 0x3FFFFF; | |
60 | nl_socket_set_local_port(sock, pid + (port << 22)); | |
61 | } | |
62 | ||
63 | static nl_sock * wifi_create_nl_socket(int port) | |
64 | { | |
65 | ALOGI("Creating socket"); | |
66 | struct nl_sock *sock = nl_socket_alloc(); | |
67 | if (sock == NULL) { | |
68 | ALOGE("Could not create handle"); | |
69 | return NULL; | |
70 | } | |
71 | ||
72 | wifi_socket_set_local_port(sock, port); | |
73 | ||
de2a8779 | 74 | ALOGI("Connecting socket"); |
7753f181 DD |
75 | if (nl_connect(sock, NETLINK_GENERIC)) { |
76 | ALOGE("Could not connect handle"); | |
77 | nl_socket_free(sock); | |
78 | return NULL; | |
79 | } | |
80 | ||
7753f181 DD |
81 | return sock; |
82 | } | |
83 | ||
d59e4b54 | 84 | /* Initialize HAL function pointer table */ |
7753f181 DD |
85 | wifi_error init_wifi_vendor_hal_func_table(wifi_hal_fn *fn) |
86 | { | |
87 | if (fn == NULL) { | |
88 | return WIFI_ERROR_UNKNOWN; | |
89 | } | |
90 | fn->wifi_initialize = wifi_initialize; | |
91 | fn->wifi_cleanup = wifi_cleanup; | |
92 | fn->wifi_event_loop = wifi_event_loop; | |
93 | fn->wifi_get_supported_feature_set = wifi_get_supported_feature_set; | |
94 | fn->wifi_get_concurrency_matrix = wifi_get_concurrency_matrix; | |
95 | fn->wifi_set_scanning_mac_oui = wifi_set_scanning_mac_oui; | |
96 | fn->wifi_get_ifaces = wifi_get_ifaces; | |
97 | fn->wifi_get_iface_name = wifi_get_iface_name; | |
98 | fn->wifi_start_gscan = wifi_start_gscan; | |
99 | fn->wifi_stop_gscan = wifi_stop_gscan; | |
100 | fn->wifi_get_cached_gscan_results = wifi_get_cached_gscan_results; | |
101 | fn->wifi_set_bssid_hotlist = wifi_set_bssid_hotlist; | |
102 | fn->wifi_reset_bssid_hotlist = wifi_reset_bssid_hotlist; | |
103 | fn->wifi_set_significant_change_handler = wifi_set_significant_change_handler; | |
104 | fn->wifi_reset_significant_change_handler = wifi_reset_significant_change_handler; | |
105 | fn->wifi_get_gscan_capabilities = wifi_get_gscan_capabilities; | |
106 | fn->wifi_get_link_stats = wifi_get_link_stats; | |
107 | fn->wifi_get_valid_channels = wifi_get_valid_channels; | |
108 | fn->wifi_rtt_range_request = wifi_rtt_range_request; | |
109 | fn->wifi_rtt_range_cancel = wifi_rtt_range_cancel; | |
110 | fn->wifi_get_rtt_capabilities = wifi_get_rtt_capabilities; | |
111 | fn->wifi_set_nodfs_flag = wifi_set_nodfs_flag; | |
3c0c6ab1 PG |
112 | fn->wifi_start_sending_offloaded_packet = wifi_start_sending_offloaded_packet; |
113 | fn->wifi_stop_sending_offloaded_packet = wifi_stop_sending_offloaded_packet; | |
7753f181 DD |
114 | return WIFI_SUCCESS; |
115 | } | |
116 | ||
117 | wifi_error wifi_initialize(wifi_handle *handle) | |
118 | { | |
119 | srand(getpid()); | |
120 | ||
121 | ALOGI("Initializing wifi"); | |
122 | hal_info *info = (hal_info *)malloc(sizeof(hal_info)); | |
123 | if (info == NULL) { | |
124 | ALOGE("Could not allocate hal_info"); | |
125 | return WIFI_ERROR_UNKNOWN; | |
126 | } | |
127 | ||
128 | memset(info, 0, sizeof(*info)); | |
129 | ||
130 | ALOGI("Creating socket"); | |
131 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, info->cleanup_socks) == -1) { | |
132 | ALOGE("Could not create cleanup sockets"); | |
133 | free(info); | |
134 | return WIFI_ERROR_UNKNOWN; | |
135 | } | |
136 | ||
137 | struct nl_sock *cmd_sock = wifi_create_nl_socket(WIFI_HAL_CMD_SOCK_PORT); | |
138 | if (cmd_sock == NULL) { | |
139 | ALOGE("Could not create handle"); | |
140 | free(info); | |
141 | return WIFI_ERROR_UNKNOWN; | |
142 | } | |
143 | ||
144 | struct nl_sock *event_sock = wifi_create_nl_socket(WIFI_HAL_EVENT_SOCK_PORT); | |
145 | if (event_sock == NULL) { | |
146 | ALOGE("Could not create handle"); | |
147 | nl_socket_free(cmd_sock); | |
148 | free(info); | |
149 | return WIFI_ERROR_UNKNOWN; | |
150 | } | |
151 | ||
152 | struct nl_cb *cb = nl_socket_get_cb(event_sock); | |
153 | if (cb == NULL) { | |
154 | ALOGE("Could not create handle"); | |
155 | nl_socket_free(cmd_sock); | |
156 | nl_socket_free(event_sock); | |
157 | free(info); | |
158 | return WIFI_ERROR_UNKNOWN; | |
159 | } | |
160 | ||
161 | // ALOGI("cb->refcnt = %d", cb->cb_refcnt); | |
162 | nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, internal_no_seq_check, info); | |
163 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, internal_valid_message_handler, info); | |
164 | nl_cb_put(cb); | |
165 | ||
166 | info->cmd_sock = cmd_sock; | |
167 | info->event_sock = event_sock; | |
168 | info->clean_up = false; | |
169 | info->in_event_loop = false; | |
170 | ||
171 | info->event_cb = (cb_info *)malloc(sizeof(cb_info) * DEFAULT_EVENT_CB_SIZE); | |
172 | info->alloc_event_cb = DEFAULT_EVENT_CB_SIZE; | |
173 | info->num_event_cb = 0; | |
174 | ||
175 | info->cmd = (cmd_info *)malloc(sizeof(cmd_info) * DEFAULT_CMD_SIZE); | |
176 | info->alloc_cmd = DEFAULT_CMD_SIZE; | |
177 | info->num_cmd = 0; | |
178 | ||
179 | info->nl80211_family_id = genl_ctrl_resolve(cmd_sock, "nl80211"); | |
180 | if (info->nl80211_family_id < 0) { | |
181 | ALOGE("Could not resolve nl80211 familty id"); | |
182 | nl_socket_free(cmd_sock); | |
183 | nl_socket_free(event_sock); | |
184 | free(info); | |
185 | return WIFI_ERROR_UNKNOWN; | |
186 | } | |
187 | ||
188 | pthread_mutex_init(&info->cb_lock, NULL); | |
189 | ||
190 | *handle = (wifi_handle) info; | |
191 | ALOGD("wifi_initialize, handle = %p\n", handle); | |
192 | ALOGD("wifi_initialize, *handle = %p\n", *handle); | |
193 | ALOGD("wifi_initialize, info = %p\n", info); | |
194 | ALOGD("wifi_initialize, *info = %pn", *info); | |
195 | wifi_add_membership(*handle, "scan"); | |
196 | wifi_add_membership(*handle, "mlme"); | |
197 | wifi_add_membership(*handle, "regulatory"); | |
198 | wifi_add_membership(*handle, "vendor"); | |
199 | ||
200 | wifi_init_interfaces(*handle); | |
201 | ALOGD("Found %d interfaces", info->num_interfaces); | |
202 | ||
203 | ||
204 | ALOGI("Initialized Wifi HAL Successfully; vendor cmd = %d", NL80211_CMD_VENDOR); | |
205 | return WIFI_SUCCESS; | |
206 | } | |
207 | ||
208 | static int wifi_add_membership(wifi_handle handle, const char *group) | |
209 | { | |
210 | hal_info *info = getHalInfo(handle); | |
211 | ||
212 | int id = wifi_get_multicast_id(handle, "nl80211", group); | |
213 | if (id < 0) { | |
214 | ALOGE("Could not find group %s", group); | |
215 | return id; | |
216 | } | |
217 | ||
218 | int ret = nl_socket_add_membership(info->event_sock, id); | |
219 | if (ret < 0) { | |
220 | ALOGE("Could not add membership to group %s", group); | |
221 | } | |
222 | ||
223 | ALOGI("Successfully added membership for group %s", group); | |
224 | return ret; | |
225 | } | |
226 | ||
227 | static void internal_cleaned_up_handler(wifi_handle handle) | |
228 | { | |
229 | hal_info *info = getHalInfo(handle); | |
230 | wifi_cleaned_up_handler cleaned_up_handler = info->cleaned_up_handler; | |
231 | ||
232 | if (info->cmd_sock != 0) { | |
233 | close(info->cleanup_socks[0]); | |
234 | close(info->cleanup_socks[1]); | |
235 | nl_socket_free(info->cmd_sock); | |
236 | nl_socket_free(info->event_sock); | |
237 | info->cmd_sock = NULL; | |
238 | info->event_sock = NULL; | |
239 | } | |
240 | ||
241 | (*cleaned_up_handler)(handle); | |
242 | pthread_mutex_destroy(&info->cb_lock); | |
243 | free(info); | |
244 | ||
245 | ALOGI("Internal cleanup completed"); | |
246 | } | |
247 | ||
248 | void wifi_cleanup(wifi_handle handle, wifi_cleaned_up_handler handler) | |
249 | { | |
250 | hal_info *info = getHalInfo(handle); | |
251 | char buf[64]; | |
252 | ||
253 | info->cleaned_up_handler = handler; | |
254 | if (write(info->cleanup_socks[0], "Exit", 4) < 1) { | |
255 | ALOGE("could not write to the cleanup socket"); | |
256 | } else { | |
257 | // Listen to the response | |
258 | // Hopefully we dont get errors or get hung up | |
259 | // Not much can be done in that case, but assume that | |
260 | // it has rx'ed the Exit message to exit the thread. | |
261 | // As a fallback set the cleanup flag to TRUE | |
262 | memset(buf, 0, sizeof(buf)); | |
263 | int result = read(info->cleanup_socks[0], buf, sizeof(buf)); | |
264 | ALOGE("%s: Read after POLL returned %d, error no = %d", __FUNCTION__, result, errno); | |
265 | if (strncmp(buf, "Done", 4) == 0) { | |
266 | ALOGE("Event processing terminated"); | |
267 | } else { | |
268 | ALOGD("Rx'ed %s", buf); | |
269 | } | |
270 | } | |
271 | info->clean_up = true; | |
272 | pthread_mutex_lock(&info->cb_lock); | |
273 | ||
274 | int bad_commands = 0; | |
275 | ||
7753f181 DD |
276 | while (info->num_cmd > bad_commands) { |
277 | int num_cmd = info->num_cmd; | |
278 | cmd_info *cmdi = &(info->cmd[bad_commands]); | |
279 | WifiCommand *cmd = cmdi->cmd; | |
280 | if (cmd != NULL) { | |
281 | pthread_mutex_unlock(&info->cb_lock); | |
282 | cmd->cancel(); | |
283 | pthread_mutex_lock(&info->cb_lock); | |
284 | /* release reference added when command is saved */ | |
285 | cmd->releaseRef(); | |
286 | if (num_cmd == info->num_cmd) { | |
287 | bad_commands++; | |
288 | } | |
289 | } | |
290 | } | |
291 | ||
292 | for (int i = 0; i < info->num_event_cb; i++) { | |
293 | cb_info *cbi = &(info->event_cb[i]); | |
294 | WifiCommand *cmd = (WifiCommand *)cbi->cb_arg; | |
295 | ALOGE("Leaked command %p", cmd); | |
296 | } | |
297 | pthread_mutex_unlock(&info->cb_lock); | |
298 | internal_cleaned_up_handler(handle); | |
299 | } | |
300 | ||
301 | static int internal_pollin_handler(wifi_handle handle) | |
302 | { | |
303 | hal_info *info = getHalInfo(handle); | |
304 | ALOGI("even_loop info = %p", info); | |
305 | struct nl_cb *cb = nl_socket_get_cb(info->event_sock); | |
306 | int res = nl_recvmsgs(info->event_sock, cb); | |
307 | ALOGD("nl_recvmsgs returned %d", res); | |
308 | nl_cb_put(cb); | |
309 | return res; | |
310 | } | |
311 | ||
312 | /* Run event handler */ | |
313 | void wifi_event_loop(wifi_handle handle) | |
314 | { | |
315 | hal_info *info = getHalInfo(handle); | |
316 | ALOGI("even_loop info = %p", info); | |
317 | ALOGI("even_loop info = %p", handle); | |
318 | if (info->in_event_loop) { | |
319 | return; | |
320 | } else { | |
321 | info->in_event_loop = true; | |
322 | } | |
323 | ||
324 | pollfd pfd[2]; | |
325 | memset(&pfd[0], 0, sizeof(pollfd) * 2); | |
326 | ||
327 | pfd[0].fd = nl_socket_get_fd(info->event_sock); | |
328 | pfd[0].events = POLLIN; | |
329 | pfd[1].fd = info->cleanup_socks[1]; | |
330 | pfd[1].events = POLLIN; | |
331 | ||
332 | char buf[2048]; | |
333 | ||
334 | do { | |
335 | int timeout = -1; /* Infinite timeout */ | |
336 | pfd[0].revents = 0; | |
337 | pfd[1].revents = 0; | |
338 | int result = poll(pfd, 2, timeout); | |
339 | if (result < 0) { | |
340 | } else if (pfd[0].revents & POLLERR) { | |
341 | ALOGE("POLL Error; error no = %d", errno); | |
342 | int result2 = read(pfd[0].fd, buf, sizeof(buf)); | |
343 | ALOGE("Read after POLL returned %d, error no = %d", result2, errno); | |
344 | } else if (pfd[0].revents & POLLHUP) { | |
345 | ALOGE("Remote side hung up"); | |
346 | break; | |
347 | } else if (pfd[0].revents & POLLIN) { | |
348 | internal_pollin_handler(handle); | |
349 | } else if (pfd[1].revents & POLLIN) { | |
350 | memset(buf, 0, sizeof(buf)); | |
351 | int result2 = read(pfd[1].fd, buf, sizeof(buf)); | |
352 | ALOGE("%s: Read after POLL returned %d, error no = %d", __FUNCTION__, result2, errno); | |
353 | if (strncmp(buf, "Exit", 4) == 0) { | |
354 | ALOGD("Got a signal to exit!!!"); | |
355 | if (write(pfd[1].fd, "Done", 4) < 1) { | |
356 | ALOGE("could not write to the cleanup socket"); | |
357 | } | |
358 | break; | |
359 | } else { | |
360 | ALOGD("Rx'ed %s on the cleanup socket\n", buf); | |
361 | } | |
362 | } else { | |
363 | ALOGE("Unknown event - %0x, %0x", pfd[0].revents, pfd[1].revents); | |
364 | } | |
365 | } while (!info->clean_up); | |
366 | ALOGI("Exit %s", __FUNCTION__); | |
367 | } | |
368 | ||
369 | /////////////////////////////////////////////////////////////////////////////////////// | |
370 | ||
371 | static int internal_no_seq_check(struct nl_msg *msg, void *arg) | |
372 | { | |
373 | return NL_OK; | |
374 | } | |
375 | ||
376 | static int internal_valid_message_handler(nl_msg *msg, void *arg) | |
377 | { | |
378 | wifi_handle handle = (wifi_handle)arg; | |
379 | hal_info *info = getHalInfo(handle); | |
380 | ALOGI("even_loop info = %p", handle); | |
381 | ALOGD("internal_valid_message_handler, info = %p", info); | |
382 | ||
383 | WifiEvent event(msg); | |
384 | int res = event.parse(); | |
385 | if (res < 0) { | |
386 | ALOGE("Failed to parse event: %d", res); | |
387 | return NL_SKIP; | |
388 | } | |
389 | ||
390 | int cmd = event.get_cmd(); | |
391 | uint32_t vendor_id = 0; | |
392 | int subcmd = 0; | |
393 | ||
394 | if (cmd == NL80211_CMD_VENDOR) { | |
395 | vendor_id = event.get_u32(NL80211_ATTR_VENDOR_ID); | |
396 | subcmd = event.get_u32(NL80211_ATTR_VENDOR_SUBCMD); | |
397 | ALOGI("event received %s, vendor_id = 0x%0x, subcmd = 0x%0x", | |
398 | event.get_cmdString(), vendor_id, subcmd); | |
399 | } else { | |
400 | ALOGI("event received %s", event.get_cmdString()); | |
401 | } | |
402 | ||
403 | //ALOGI("event received %s, vendor_id = 0x%0x", event.get_cmdString(), vendor_id); | |
404 | //event.log(); | |
405 | ||
7753f181 | 406 | pthread_mutex_lock(&info->cb_lock); |
3c0c6ab1 | 407 | |
7753f181 DD |
408 | ALOGI("Number of events %d", info->num_event_cb); |
409 | ||
410 | for (int i = 0; i < info->num_event_cb; i++) { | |
411 | if (cmd == info->event_cb[i].nl_cmd) { | |
412 | if (cmd == NL80211_CMD_VENDOR | |
413 | && ((vendor_id != info->event_cb[i].vendor_id) | |
414 | || (subcmd != info->event_cb[i].vendor_subcmd))) | |
415 | { | |
416 | /* event for a different vendor, ignore it */ | |
417 | continue; | |
418 | } | |
419 | ||
420 | cb_info *cbi = &(info->event_cb[i]); | |
421 | nl_recvmsg_msg_cb_t cb_func = cbi->cb_func; | |
422 | void *cb_arg = cbi->cb_arg; | |
423 | WifiCommand *cmd = (WifiCommand *)cbi->cb_arg; | |
424 | if (cmd != NULL) { | |
425 | cmd->addRef(); | |
426 | } | |
427 | ||
428 | pthread_mutex_unlock(&info->cb_lock); | |
429 | if (cb_func) | |
430 | (*cb_func)(msg, cb_arg); | |
431 | if (cmd != NULL) { | |
432 | cmd->releaseRef(); | |
433 | } | |
434 | ||
435 | return NL_OK; | |
436 | } | |
437 | } | |
438 | ||
439 | pthread_mutex_unlock(&info->cb_lock); | |
440 | return NL_OK; | |
441 | } | |
442 | ||
443 | /////////////////////////////////////////////////////////////////////////////////////// | |
444 | ||
445 | class GetMulticastIdCommand : public WifiCommand | |
446 | { | |
447 | private: | |
448 | const char *mName; | |
449 | const char *mGroup; | |
450 | int mId; | |
451 | public: | |
452 | GetMulticastIdCommand(wifi_handle handle, const char *name, const char *group) | |
453 | : WifiCommand(handle, 0) | |
454 | { | |
455 | mName = name; | |
456 | mGroup = group; | |
457 | mId = -1; | |
458 | } | |
459 | ||
460 | int getId() { | |
461 | return mId; | |
462 | } | |
463 | ||
464 | virtual int create() { | |
465 | int nlctrlFamily = genl_ctrl_resolve(mInfo->cmd_sock, "nlctrl"); | |
466 | ALOGI("ctrl family = %d", nlctrlFamily); | |
467 | int ret = mMsg.create(nlctrlFamily, CTRL_CMD_GETFAMILY, 0, 0); | |
468 | if (ret < 0) { | |
469 | return ret; | |
470 | } | |
471 | ret = mMsg.put_string(CTRL_ATTR_FAMILY_NAME, mName); | |
472 | return ret; | |
473 | } | |
474 | ||
475 | virtual int handleResponse(WifiEvent& reply) { | |
476 | ||
477 | ALOGE("handling reponse in %s", __func__); | |
478 | ||
479 | struct nlattr **tb = reply.attributes(); | |
7753f181 DD |
480 | struct nlattr *mcgrp = NULL; |
481 | int i; | |
482 | ||
483 | if (!tb[CTRL_ATTR_MCAST_GROUPS]) { | |
484 | ALOGE("No multicast groups found"); | |
485 | return NL_SKIP; | |
486 | } else { | |
487 | ALOGE("Multicast groups attr size = %d", nla_len(tb[CTRL_ATTR_MCAST_GROUPS])); | |
488 | } | |
489 | ||
490 | for_each_attr(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { | |
491 | ||
492 | ALOGE("Processing group"); | |
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 | ||
503 | ALOGE("Found group name %s", grpName); | |
504 | ||
505 | if (strncmp(grpName, mGroup, grpNameLen) != 0) | |
506 | continue; | |
507 | ||
508 | mId = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); | |
509 | break; | |
510 | } | |
511 | ||
512 | return NL_SKIP; | |
513 | } | |
514 | ||
515 | }; | |
516 | ||
517 | class SetPnoMacAddrOuiCommand : public WifiCommand { | |
518 | ||
519 | private: | |
520 | byte *mOui; | |
521 | feature_set *fset; | |
522 | feature_set *feature_matrix; | |
523 | int *fm_size; | |
524 | int set_size_max; | |
525 | public: | |
526 | SetPnoMacAddrOuiCommand(wifi_interface_handle handle, oui scan_oui) | |
527 | : WifiCommand(handle, 0) | |
528 | { | |
529 | mOui = scan_oui; | |
530 | } | |
531 | ||
532 | int createRequest(WifiRequest& request, int subcmd, byte *scan_oui) { | |
533 | int result = request.create(GOOGLE_OUI, subcmd); | |
534 | if (result < 0) { | |
535 | return result; | |
536 | } | |
537 | ||
538 | nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA); | |
539 | result = request.put(ANDR_WIFI_ATTRIBUTE_PNO_RANDOM_MAC_OUI, scan_oui, DOT11_OUI_LEN); | |
540 | if (result < 0) { | |
541 | return result; | |
542 | } | |
543 | ||
544 | request.attr_end(data); | |
545 | return WIFI_SUCCESS; | |
546 | ||
547 | } | |
548 | ||
549 | int start() { | |
550 | ALOGD("Sending mac address OUI"); | |
551 | WifiRequest request(familyId(), ifaceId()); | |
552 | int result = createRequest(request, SLSI_NL80211_VENDOR_SUBCMD_SET_GSCAN_OUI, mOui); | |
553 | if (result != WIFI_SUCCESS) { | |
554 | ALOGE("failed to create request; result = %d", result); | |
555 | return result; | |
556 | } | |
557 | ||
558 | result = requestResponse(request); | |
559 | if (result != WIFI_SUCCESS) { | |
560 | ALOGE("failed to set scanning mac OUI; result = %d", result); | |
561 | } | |
562 | ||
563 | return result; | |
564 | } | |
565 | protected: | |
566 | virtual int handleResponse(WifiEvent& reply) { | |
567 | ALOGD("Request complete!"); | |
568 | /* Nothing to do on response! */ | |
569 | return NL_SKIP; | |
570 | } | |
571 | }; | |
572 | ||
573 | class SetNodfsCommand : public WifiCommand { | |
574 | ||
575 | private: | |
576 | u32 mNoDfs; | |
577 | public: | |
578 | SetNodfsCommand(wifi_interface_handle handle, u32 nodfs) | |
579 | : WifiCommand(handle, 0) { | |
580 | mNoDfs = nodfs; | |
581 | } | |
582 | virtual int create() { | |
583 | int ret; | |
584 | ||
585 | ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_NODFS); | |
586 | if (ret < 0) { | |
587 | ALOGE("Can't create message to send to driver - %d", ret); | |
588 | return ret; | |
589 | } | |
590 | ||
591 | nlattr *data = mMsg.attr_start(NL80211_ATTR_VENDOR_DATA); | |
592 | ret = mMsg.put_u32(ATTR_NODFS_VALUE, mNoDfs); | |
593 | if (ret < 0) { | |
594 | return ret; | |
595 | } | |
596 | ||
597 | mMsg.attr_end(data); | |
598 | return WIFI_SUCCESS; | |
599 | } | |
600 | }; | |
601 | ||
602 | static int wifi_get_multicast_id(wifi_handle handle, const char *name, const char *group) | |
603 | { | |
604 | GetMulticastIdCommand cmd(handle, name, group); | |
605 | int res = cmd.requestResponse(); | |
606 | if (res < 0) | |
607 | return res; | |
608 | else | |
609 | return cmd.getId(); | |
610 | } | |
611 | ||
612 | ///////////////////////////////////////////////////////////////////////// | |
613 | ||
614 | static bool is_wifi_interface(const char *name) | |
615 | { | |
616 | if (strncmp(name, "wlan", 4) != 0 && strncmp(name, "p2p", 3) != 0) { | |
617 | /* not a wifi interface; ignore it */ | |
618 | return false; | |
619 | } else { | |
620 | return true; | |
621 | } | |
622 | } | |
623 | ||
624 | static int get_interface(const char *name, interface_info *info) | |
625 | { | |
626 | strcpy(info->name, name); | |
627 | info->id = if_nametoindex(name); | |
628 | ALOGI("found an interface : %s, id = %d", name, info->id); | |
629 | return WIFI_SUCCESS; | |
630 | } | |
631 | ||
632 | wifi_error wifi_init_interfaces(wifi_handle handle) | |
633 | { | |
634 | hal_info *info = (hal_info *)handle; | |
635 | ALOGD("wifi_init_interfaces, info = %p", info); | |
636 | ||
637 | struct dirent *de; | |
638 | ||
639 | DIR *d = opendir("/sys/class/net"); | |
640 | if (d == 0) | |
641 | return WIFI_ERROR_UNKNOWN; | |
642 | ||
643 | int n = 0; | |
644 | while ((de = readdir(d))) { | |
645 | if (de->d_name[0] == '.') | |
646 | continue; | |
647 | if (is_wifi_interface(de->d_name) ) { | |
648 | n++; | |
649 | } | |
650 | } | |
651 | ||
652 | closedir(d); | |
653 | ||
654 | d = opendir("/sys/class/net"); | |
655 | if (d == 0) | |
656 | return WIFI_ERROR_UNKNOWN; | |
657 | ||
658 | info->interfaces = (interface_info **)malloc(sizeof(interface_info *) * n); | |
659 | ||
660 | int i = 0; | |
661 | while ((de = readdir(d))) { | |
662 | if (de->d_name[0] == '.') | |
663 | continue; | |
664 | if (is_wifi_interface(de->d_name)) { | |
665 | interface_info *ifinfo = (interface_info *)malloc(sizeof(interface_info)); | |
666 | if (get_interface(de->d_name, ifinfo) != WIFI_SUCCESS) { | |
667 | free(ifinfo); | |
668 | continue; | |
669 | } | |
670 | ifinfo->handle = handle; | |
671 | info->interfaces[i] = ifinfo; | |
672 | i++; | |
673 | } | |
674 | } | |
675 | ||
676 | closedir(d); | |
677 | ||
678 | info->num_interfaces = n; | |
679 | return WIFI_SUCCESS; | |
680 | } | |
681 | ||
682 | wifi_error wifi_get_ifaces(wifi_handle handle, int *num, wifi_interface_handle **interfaces) | |
683 | { | |
684 | hal_info *info = (hal_info *)handle; | |
685 | ||
686 | *interfaces = (wifi_interface_handle *)info->interfaces; | |
687 | *num = info->num_interfaces; | |
688 | ||
689 | return WIFI_SUCCESS; | |
690 | } | |
691 | ||
692 | wifi_error wifi_get_iface_name(wifi_interface_handle handle, char *name, size_t size) | |
693 | { | |
694 | interface_info *info = (interface_info *)handle; | |
695 | strcpy(name, info->name); | |
696 | return WIFI_SUCCESS; | |
697 | } | |
698 | ||
699 | wifi_error wifi_get_supported_feature_set(wifi_interface_handle handle, feature_set *set) | |
700 | { | |
701 | return WIFI_ERROR_NOT_SUPPORTED; | |
702 | } | |
703 | ||
704 | wifi_error wifi_get_concurrency_matrix(wifi_interface_handle handle, int set_size_max, | |
705 | feature_set set[], int *set_size) | |
706 | { | |
707 | return WIFI_ERROR_NOT_SUPPORTED; | |
708 | } | |
709 | ||
710 | wifi_error wifi_set_scanning_mac_oui(wifi_interface_handle handle, oui scan_oui) | |
711 | { | |
712 | SetPnoMacAddrOuiCommand command(handle, scan_oui); | |
713 | return (wifi_error)command.start(); | |
714 | ||
715 | } | |
716 | ||
717 | wifi_error wifi_set_nodfs_flag(wifi_interface_handle handle, u32 nodfs) | |
718 | { | |
719 | SetNodfsCommand command(handle, nodfs); | |
720 | return (wifi_error) command.requestResponse(); | |
721 | } | |
722 | ||
723 | ///////////////////////////////////////////////////////////////////////////// |