static int
wprobe_send_msg(struct nl_msg *msg, void *callback, void *arg)
{
struct nl_cb *cb;
int err = 0;
cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!cb)
goto out_no_cb;
if (callback)
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, callback, arg);
err = nl_send_auto_complete(handle, msg);
if (err < 0)
goto out;
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
while (err > 0)
nl_recvmsgs(handle, cb);
out:
nl_cb_put(cb);
out_no_cb:
nlmsg_free(msg);
return err;
}
static struct nl80211_msg_conveyor * nl80211_send(
struct nl80211_msg_conveyor *cv,
int (*cb_func)(struct nl_msg *, void *), void *cb_arg
) {
static struct nl80211_msg_conveyor rcv;
int err = 1;
if (cb_func)
nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb_func, cb_arg);
else
nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_msg_response, &rcv);
if (nl_send_auto_complete(nls->nl_sock, cv->msg) < 0)
goto err;
nl_cb_err(cv->cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
nl_cb_set(cv->cb, NL_CB_FINISH, NL_CB_CUSTOM, nl80211_msg_finish, &err);
nl_cb_set(cv->cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_msg_ack, &err);
while (err > 0)
nl_recvmsgs(nls->nl_sock, cv->cb);
return &rcv;
err:
nl_cb_put(cv->cb);
nlmsg_free(cv->msg);
return NULL;
}
int unl_genl_request(struct unl *unl, struct nl_msg *msg, unl_cb handler, void *arg)
{
struct nlmsghdr *nlh;
struct nl_cb *cb;
int err;
cb = nl_cb_alloc(NL_CB_CUSTOM);
nlh = nlmsg_hdr(msg);
err = nl_send_auto_complete(unl->sock, msg);
if (err < 0)
goto out;
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
if (handler)
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, handler, arg);
while (err > 0)
nl_recvmsgs(unl->sock, cb);
out:
nlmsg_free(msg);
nl_cb_put(cb);
return err;
}
static int send_and_recv(struct nl_sock *nl_sock, struct nl_msg *msg,
int (*valid_handler)(struct nl_msg *, void *),
void *valid_data)
{
struct nl_cb *cb;
int err = -ENOMEM;
cb = nl_cb_clone(nlcfg.nl_cb);
if (!cb)
goto out;
err = nl_send_auto_complete(nl_sock, msg);
if (err < 0)
goto out;
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
if (valid_handler)
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
valid_handler, valid_data);
while (err > 0)
nl_recvmsgs(nl_sock, cb);
out:
nl_cb_put(cb);
nlmsg_free(msg);
return err;
}
int SoftapController::executeScanLinkCmd(const char *iface, int *iface_freq)
{
struct nl_cb *cb;
struct nl_msg *msg;
int devidx = 0;
int err;
// initialize to non-valid freq
*iface_freq = 0;
devidx = if_nametoindex(iface);
if (devidx == 0) {
LOGE("failed to translate ifname to idx");
return -errno;
}
msg = nlmsg_alloc();
if (!msg) {
LOGE("failed to allocate netlink message");
return 2;
}
cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!cb) {
LOGE("failed to allocate netlink callbacks");
err = 2;
goto out_free_msg;
}
genlmsg_put(msg, 0, 0, genl_family_get_id(nl80211), 0,
NLM_F_DUMP, NL80211_CMD_GET_SCAN, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, devidx);
// iface_freq will be filled out by the callback
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, linkDumpCbHandler, iface_freq);
err = nl_send_auto_complete(nl_soc, msg);
if (err < 0)
goto out;
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, NlErrorHandler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, NlFinishHandler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, NlAckHandler, &err);
while (err > 0)
nl_recvmsgs(nl_soc, cb);
out:
nl_cb_put(cb);
out_free_msg:
nlmsg_free(msg);
return err;
nla_put_failure:
LOGW("building message failed");
return 2;
}
int ac_kmod_init(void) {
int result;
/* */
capwap_lock_init(&g_ac.kmodhandle.msglock);
/* Configure netlink callback */
g_ac.kmodhandle.nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!g_ac.kmodhandle.nl_cb) {
ac_kmod_free();
return -1;
}
/* Create netlink socket */
g_ac.kmodhandle.nl = nl_create_handle(g_ac.kmodhandle.nl_cb);
if (!g_ac.kmodhandle.nl) {
ac_kmod_free();
return -1;
}
g_ac.kmodhandle.nl_fd = nl_socket_get_fd(g_ac.kmodhandle.nl);
/* Get nlsmartcapwap netlink family */
g_ac.kmodhandle.nlsmartcapwap_id = genl_ctrl_resolve(g_ac.kmodhandle.nl, NLSMARTCAPWAP_GENL_NAME);
if (g_ac.kmodhandle.nlsmartcapwap_id < 0) {
log_printf(LOG_WARNING, "Unable to found kernel module");
ac_kmod_free();
return -1;
}
/* Configure callback function */
nl_cb_set(g_ac.kmodhandle.nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, ac_kmod_no_seq_check, NULL);
nl_cb_set(g_ac.kmodhandle.nl_cb, NL_CB_VALID, NL_CB_CUSTOM, ac_kmod_valid_handler, NULL);
/* Link to kernel module */
result = ac_kmod_link();
if (result) {
ac_kmod_free();
return result;
}
/* Configure netlink message socket */
g_ac.kmodhandle.nlmsg_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!g_ac.kmodhandle.nlmsg_cb) {
ac_kmod_free();
return -1;
}
/* */
g_ac.kmodhandle.nlmsg = nl_create_handle(g_ac.kmodhandle.nlmsg_cb);
if (!g_ac.kmodhandle.nlmsg) {
ac_kmod_free();
return -1;
}
return 0;
}
/* NOTE: this function consumes 'msg' */
static int
_nl80211_send_and_recv (struct nl_sock *nl_sock,
struct nl_cb *nl_cb,
struct nl_msg *msg,
int (*valid_handler) (struct nl_msg *, void *),
void *valid_data)
{
struct nl_cb *cb;
int err, done;
g_return_val_if_fail (msg != NULL, -ENOMEM);
cb = nl_cb_clone (nl_cb);
if (!cb) {
err = -ENOMEM;
goto out;
}
err = nl_send_auto_complete (nl_sock, msg);
if (err < 0)
goto out;
done = 0;
nl_cb_err (cb, NL_CB_CUSTOM, error_handler, &done);
nl_cb_set (cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &done);
nl_cb_set (cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &done);
if (valid_handler)
nl_cb_set (cb, NL_CB_VALID, NL_CB_CUSTOM, valid_handler, valid_data);
/* Loop until one of our NL callbacks says we're done; on success
* done will be 1, on error it will be < 0.
*/
while (!done) {
err = nl_recvmsgs (nl_sock, cb);
if (err && err != -NLE_AGAIN) {
/* Kernel scan list can change while we are dumping it, as new scan
* results from H/W can arrive. BSS info is assured to be consistent
* and we don't need consistent view of whole scan list. Hence do
* not warn on DUMP_INTR error for get scan command.
*/
if (err == -NLE_DUMP_INTR &&
genlmsg_hdr(nlmsg_hdr(msg))->cmd == NL80211_CMD_GET_SCAN)
break;
nm_log_warn (LOGD_WIFI, "nl_recvmsgs() error: (%d) %s",
err, nl_geterror (err));
break;
}
}
if (err == 0 && done < 0)
err = done;
out:
nl_cb_put (cb);
nlmsg_free (msg);
return err;
}
static int handle_mgmt_dump(struct nl80211_state *state,
struct nl_msg *msg, int argc,
char **argv, enum id_input id)
{
struct nl_cb *mgmt_cb;
char *ndev = argv[0];
int mgmt_argc = 5;
char **mgmt_argv;
unsigned int count = 0;
int err = 0;
int i;
mgmt_argv = calloc(mgmt_argc, sizeof(char*));
if (!mgmt_argv)
return -ENOMEM;
mgmt_argv[0] = ndev;
mgmt_argv[1] = "mgmt";
mgmt_argv[2] = "reg";
for (i = 3; i < argc; i += 3) {
if (strcmp(argv[i], "count") == 0) {
count = 1 + atoi(argv[i + 1]);
break;
}
if (strcmp(argv[i], "frame") != 0) {
err = 1;
goto out;
}
mgmt_argv[3] = argv[i + 1];
mgmt_argv[4] = argv[i + 2];
err = handle_cmd(state, II_NETDEV, mgmt_argc, mgmt_argv);
if (err)
goto out;
}
mgmt_cb = nl_cb_alloc(iw_debug ? NL_CB_DEBUG : NL_CB_DEFAULT);
if (!mgmt_cb) {
err = 1;
goto out;
}
/* need to turn off sequence number checking */
nl_cb_set(mgmt_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, seq_handler, NULL);
nl_cb_set(mgmt_cb, NL_CB_VALID, NL_CB_CUSTOM, dump_mgmt_frame, NULL);
while (--count)
nl_recvmsgs(state->nl_sock, mgmt_cb);
nl_cb_put(mgmt_cb);
out:
free(mgmt_argv);
return err;
}
int main()
{
int ret;
struct nl_cb * nl_cb;
struct nl_handle * nl_handle;
struct netlink_data * netlink;
int ioctl_sock = -1;
struct dl_list interfaces;
int if_add_ifindex = -1;
dl_list_init(&interfaces);
/*
* global_init
*/
ret = netlink_init_nl80211_event_rtm(&netlink,NULL,nl80211_event_rtm_newlink,nl80211_event_rtm_dellink);
if (ret == -1 || netlink == NULL)
{
goto err;
}
ret = nl80211_init_event(&nl_cb, &nl_handle);
if (ret == -1)
{
wpa_printf(MSG_DEBUG, "nl80211: Init failure ");
goto err;
}
wpa_printf(MSG_INFO, "nl80211: wait for event... ");
nl_cb_set(nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
no_seq_check, NULL);
nl_cb_set(nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
process_event, NULL);
eloop_register_wrapper(nl_socket_get_fd(nl_handle),
nl80211_event_receive,
nl_cb, nl_handle);
ioctl_sock = init_ioctl_sock();
if (ioctl_sock < 0)
{
perror("socket(PF_INET,SOCK_DGRAM)");
goto err;
}
/*
* hapd_init
*/
eloop_run();
return 0;
err:
netlink_deinit(netlink);
nl_destroy_handles(&nl_handle);
nl_cb_put(nl_cb);
if (ioctl_sock >= 0)
{
close(ioctl_sock);
}
return -1;
}
static int go_offchan_freq(struct nl80211_state *state, int devidx, int freq)
{
struct nl_cb *cb;
struct nl_cb *s_cb;
struct nl_msg *msg;
int err;
msg = nlmsg_alloc();
if (!msg) {
fprintf(stderr, "failed to allocate netlink message\n");
return 2;
}
cb = nl_cb_alloc(nl_debug ? NL_CB_DEBUG : NL_CB_DEFAULT);
s_cb = nl_cb_alloc(nl_debug ? NL_CB_DEBUG : NL_CB_DEFAULT);
if (!cb || !s_cb) {
fprintf(stderr, "failed to allocate netlink callbacks\n");
err = 2;
goto out_free_msg;
}
genlmsg_put(msg, 0, 0, genl_family_get_id(state->nl80211), 0,
0,
NL80211_CMD_REMAIN_ON_CHANNEL, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, devidx);
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
/* 5 seconds is the max allowed, values passed are in ms */
NLA_PUT_U32(msg, NL80211_ATTR_DURATION, 60);
nl_socket_set_cb(state->nl_sock, s_cb);
err = nl_send_auto_complete(state->nl_sock, msg);
if (err < 0)
goto out;
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
while (err > 0)
nl_recvmsgs(state->nl_sock, cb);
out:
nl_cb_put(cb);
out_free_msg:
nlmsg_free(msg);
return err;
nla_put_failure:
fprintf(stderr, "building message failed\n");
return 2;
}
// Retrieve monitor interface for a given physical interface
int ret_mon_IF(struct nl80211_state *state)
{
struct nl_msg *msg;
struct nl_cb *cb, *s_cb;
int err = 1;
msg = nlmsg_alloc();
if (!msg)
{
fprintf(stderr, "failed to allocate netlink message\n");
return 2;
}
// Allocate a new callback handle.
cb = nl_cb_alloc(NL_CB_DEFAULT);
s_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!cb || !s_cb)
{
fprintf(stderr, "failed to allocate netlink callbacks\n");
err = 2;
goto out_free_msg;
}
// Add Generic Netlink header (i.e. NL80211_CMD_GET_INTERFACE) to Netlink message
genlmsg_put(msg, 0, 0, state->nl80211_id, 0, 768, NL80211_CMD_GET_INTERFACE, 0);
// Set up a valid callback function
if (nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, iface_handler, NULL))
goto out;
// Attach the callback function to a netlink socket
nl_socket_set_cb(state->nl_sock, s_cb);
// Finalize and transmit Netlink message
if(nl_send_auto_complete(state->nl_sock, msg) < 0)
goto out;
// Set up error, finish and acknowledgment callback function
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
while (err > 0)
nl_recvmsgs(state->nl_sock, cb);
out:
nl_cb_put(cb);
out_free_msg:
nlmsg_free(msg);
return err;
}
static int call_survey_freq(struct nl80211_state *state, int devidx, int freq)
{
struct nl_cb *cb;
struct nl_cb *s_cb;
struct nl_msg *msg;
int err;
msg = nlmsg_alloc();
if (!msg) {
fprintf(stderr, "failed to allocate netlink message\n");
return 2;
}
cb = nl_cb_alloc(nl_debug ? NL_CB_DEBUG : NL_CB_DEFAULT);
s_cb = nl_cb_alloc(nl_debug ? NL_CB_DEBUG : NL_CB_DEFAULT);
if (!cb || !s_cb) {
fprintf(stderr, "failed to allocate netlink callbacks\n");
err = 2;
goto out_free_msg;
}
genlmsg_put(msg, 0, 0, genl_family_get_id(state->nl80211), 0,
NLM_F_DUMP,
NL80211_CMD_GET_SURVEY, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, devidx);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, handle_survey_dump, (void *) &freq);
nl_socket_set_cb(state->nl_sock, s_cb);
err = nl_send_auto_complete(state->nl_sock, msg);
if (err < 0)
goto out;
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
while (err > 0)
nl_recvmsgs(state->nl_sock, cb);
out:
nl_cb_put(cb);
out_free_msg:
nlmsg_free(msg);
return err;
nla_put_failure:
fprintf(stderr, "building message failed\n");
return 2;
}
void unl_genl_loop(struct unl *unl, unl_cb handler, void *arg)
{
struct nl_cb *cb;
cb = nl_cb_alloc(NL_CB_CUSTOM);
unl->loop_done = false;
nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, handler, arg);
while (!unl->loop_done)
nl_recvmsgs(unl->sock, cb);
nl_cb_put(cb);
}
/* NOTE: this function consumes 'msg' */
static int
_nl80211_send_and_recv (struct nl_sock *nl_sock,
struct nl_cb *nl_cb,
struct nl_msg *msg,
int (*valid_handler)(struct nl_msg *, void *),
void *valid_data)
{
struct nl_cb *cb;
int err, done;
g_return_val_if_fail (msg != NULL, -ENOMEM);
cb = nl_cb_clone (nl_cb);
if (!cb) {
err = -ENOMEM;
goto out;
}
err = nl_send_auto_complete (nl_sock, msg);
if (err < 0)
goto out;
done = 0;
nl_cb_err (cb, NL_CB_CUSTOM, error_handler, &done);
nl_cb_set (cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &done);
nl_cb_set (cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &done);
if (valid_handler)
nl_cb_set (cb, NL_CB_VALID, NL_CB_CUSTOM, valid_handler, valid_data);
/* Loop until one of our NL callbacks says we're done; on success
* done will be 1, on error it will be < 0.
*/
while (!done) {
err = nl_recvmsgs (nl_sock, cb);
if (err && err != -NLE_AGAIN) {
nm_log_warn (LOGD_WIFI, "nl_recvmsgs() error: (%d) %s",
err, nl_geterror (err));
break;
}
}
if (err == 0 && done < 0)
err = done;
out:
nl_cb_put (cb);
nlmsg_free (msg);
return err;
}
int
kern_bcache_init()
{
supsocket_t *sock;
nl_bcache = nl_handle_alloc();
nl_disable_sequence_check(nl_bcache);
nl_join_groups(nl_bcache, ~0);
nl_cb_set(nl_handle_get_cb(nl_bcache), NL_CB_VALID, NL_CB_CUSTOM,
nl_bcache_event, NULL);
if (nl_connect(nl_bcache, NETLINK_IP6MBLTY) < 0) {
debug_log(1, "nl_connect(NETLINK_IP6MBLTY) failed: %s.\n",
strerror(errno));
nl_close(nl_bcache);
nl_bcache = NULL;
return -1;
}
fcntl(nl_handle_get_fd(nl_bcache), F_SETFL, O_NONBLOCK);
sock = support_register_socket(nl_handle_get_fd(nl_bcache),
nl_bcache_events_waiting, NULL, NULL);
sock->mode = SUPSOCKET_READ;
return 0;
}
static int npi_set_noarg_cmd(struct nlnpi_state *state,
struct nl_cb *cb,
struct nl_msg *msg, int argc, char **argv)
{
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_reply_status, NULL);
return 0;
}
/* data format is len(2 bytes) + name + value */
static int npi_set_debug_cmd(struct nlnpi_state *state,
struct nl_cb *cb,
struct nl_msg *msg, int argc, char **argv)
{
unsigned short len;
unsigned char data[38];
unsigned int value;
char **err = NULL;
if (argc != 2 || !argv)
return 1;
len = strlen(argv[0]);
if (len > 32) {
fprintf(stderr, "Invild debug name length(%d)\n", len);
return 2;
}
memcpy(data, &len, sizeof(len));
sscanf(argv[0], "%s", &(data[2]));
value = strtol(argv[1], err, 16);
if (err) {
fprintf(stderr, "Invild value format\n");
return 2;
}
memcpy(&(data[2 + len]), &value, sizeof(value));
NLA_PUT(msg, NLNPI_ATTR_SET_DEBUG, (sizeof(len) + len + sizeof(value)), data);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_reply_status, NULL);
return 0;
nla_put_failure:
return -ENOBUFS;
}
static int plt_get_rx_statcs(struct nl80211_state *state, struct nl_cb *cb,
struct nl_msg *msg, int argc, char **argv)
{
struct nlattr *key;
struct wl1271_radio_rx_statcs prms;
prms.test.id = TEST_CMD_RX_STAT_GET;
key = nla_nest_start(msg, NL80211_ATTR_TESTDATA);
if (!key) {
fprintf(stderr, "%s> fail to nla_nest_start()\n", __func__);
return 1;
}
NLA_PUT_U32(msg, WL1271_TM_ATTR_CMD_ID, WL1271_TM_CMD_TEST);
NLA_PUT(msg, WL1271_TM_ATTR_DATA, sizeof(prms), &prms);
NLA_PUT_U8(msg, WL1271_TM_ATTR_ANSWER, 1);
nla_nest_end(msg, key);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, display_rx_statcs, NULL);
/* Important: needed gap between tx_start and tx_get */
sleep(2);
return 0;
nla_put_failure:
fprintf(stderr, "%s> building message failed\n", __func__);
return 2;
}
/**
* Pickup netlink answer, parse is and return object
* @arg sk Netlink socket
* @arg parser Parser function to parse answer
* @arg result Result pointer to return parsed object
*
* @return 0 on success or a negative error code.
*/
int nl_pickup(struct nl_sock *sk,
int (*parser)(struct nl_cache_ops *, struct sockaddr_nl *,
struct nlmsghdr *, struct nl_parser_param *),
struct nl_object **result)
{
struct nl_cb *cb;
int err;
struct pickup_param pp = {
.parser = parser,
};
cb = nl_cb_clone(sk->s_cb);
if (cb == NULL)
return -NLE_NOMEM;
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, __pickup_answer, &pp);
err = nl_recvmsgs(sk, cb);
if (err < 0)
goto errout;
*result = pp.result;
errout:
nl_cb_put(cb);
return err;
}
static int handle_wowlan_show(struct nl80211_state *state, struct nl_cb *cb,
struct nl_msg *msg, int argc, char **argv)
{
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
print_wowlan_handler, NULL);
return 0;
}
static int get_power_save(struct nl80211_state *state,
struct nl_cb *cb,
struct nl_msg *msg)
{
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
print_power_save_handler, NULL);
return 0;
}
static int nl80211_add_mon_if(struct nl80211_state *state, const char *device,
const char *mondevice)
{
int ifindex, ret;
struct nl_msg *msg;
struct nl_cb *cb = NULL;
int finished = 0;
ifindex = device_ifindex(device);
msg = nl80211_nlmsg_xalloc();
genlmsg_put(msg, 0, 0, genl_family_get_id(state->nl80211), 0,
0, NL80211_CMD_NEW_INTERFACE, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, mondevice);
NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);
ret = nl_send_auto_complete(state->nl_sock, msg);
if (ret < 0) {
if (ret == -ENFILE) {
nlmsg_free(msg);
return -EBUSY;
}
panic("Cannot send_auto_complete!\n");
}
cb = nl_cb_alloc(NL_CB_CUSTOM);
if (!cb)
panic("Cannot alloc nl_cb!\n");
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_wait_handler, &finished);
nl_cb_err(cb, NL_CB_CUSTOM, nl80211_error_handler, NULL);
nl_recvmsgs(state->nl_sock, cb);
if (!finished) {
ret = nl_wait_for_ack(state->nl_sock);
if (ret < 0) {
if (ret == -ENFILE) {
nlmsg_free(msg);
return -EBUSY;
}
panic("Waiting for netlink ack failed!\n");
}
}
nl_cb_put(cb);
nlmsg_free(msg);
return 0;
nla_put_failure:
panic("nla put failure!\n");
return -EIO; /* dummy */
}
static int handle_interface_info(struct nl80211_state *state,
struct nl_cb *cb,
struct nl_msg *msg,
int argc, char **argv,
enum id_input id)
{
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, NULL);
return 0;
}
static wifi_error wifi_init_user_sock(hal_info *info)
{
struct nl_sock *user_sock =
wifi_create_nl_socket(WIFI_HAL_USER_SOCK_PORT, NETLINK_USERSOCK);
if (user_sock == NULL) {
ALOGE("Could not create diag sock");
return WIFI_ERROR_UNKNOWN;
}
/* Set the socket buffer size */
if (nl_socket_set_buffer_size(user_sock, (256*1024), 0) < 0) {
ALOGE("Could not set size for user_sock: %s",
strerror(errno));
/* continue anyway with the default (smaller) buffer */
}
else {
ALOGV("nl_socket_set_buffer_size successful for user_sock");
}
struct nl_cb *cb = nl_socket_get_cb(user_sock);
if (cb == NULL) {
ALOGE("Could not get cb");
return WIFI_ERROR_UNKNOWN;
}
info->user_sock_arg = 1;
nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &info->user_sock_arg);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &info->user_sock_arg);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &info->user_sock_arg);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, user_sock_message_handler, info);
nl_cb_put(cb);
int ret = nl_socket_add_membership(user_sock, 1);
if (ret < 0) {
ALOGE("Could not add membership");
return WIFI_ERROR_UNKNOWN;
}
info->user_sock = user_sock;
ALOGV("Initiialized diag sock successfully");
return WIFI_SUCCESS;
}
static int handle_dev_dump(struct nl80211_state *state,
struct nl_cb *cb,
struct nl_msg *msg,
int argc, char **argv,
enum id_input id)
{
dev_dump_wiphy = -1;
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, &dev_dump_wiphy);
return 0;
}
static wifi_error wifi_init_cld80211_sock_cb(hal_info *info)
{
struct nl_cb *cb = nl_socket_get_cb(info->cldctx->sock);
if (cb == NULL) {
ALOGE("Could not get cb");
return WIFI_ERROR_UNKNOWN;
}
info->user_sock_arg = 1;
nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &info->user_sock_arg);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &info->user_sock_arg);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &info->user_sock_arg);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, user_sock_message_handler, info);
nl_cb_put(cb);
return WIFI_SUCCESS;
}
indigo_error_t
indigo_port_stats_get(
of_port_stats_request_t *port_stats_request,
of_port_stats_reply_t **port_stats_reply_ptr)
{
of_port_no_t req_of_port_num;
of_port_stats_reply_t *port_stats_reply;
indigo_error_t err = INDIGO_ERROR_NONE;
port_stats_reply = of_port_stats_reply_new(port_stats_request->version);
if (port_stats_reply == NULL) {
err = INDIGO_ERROR_RESOURCE;
goto out;
}
of_list_port_stats_entry_t list;
of_port_stats_reply_entries_bind(port_stats_reply, &list);
of_port_stats_request_port_no_get(port_stats_request, &req_of_port_num);
int dump_all = req_of_port_num == OF_PORT_DEST_NONE_BY_VERSION(port_stats_request->version);
/* Refresh statistics */
nl_cache_refill(route_cache_sock, link_cache);
struct nl_msg *msg = ind_ovs_create_nlmsg(ovs_vport_family, OVS_VPORT_CMD_GET);
if (dump_all) {
nlmsg_hdr(msg)->nlmsg_flags |= NLM_F_DUMP;
} else {
nla_put_u32(msg, OVS_VPORT_ATTR_PORT_NO, req_of_port_num);
}
/* Ask kernel to send us one or more OVS_VPORT_CMD_NEW messages */
if (nl_send_auto(ind_ovs_socket, msg) < 0) {
err = INDIGO_ERROR_UNKNOWN;
goto out;
}
ind_ovs_nlmsg_freelist_free(msg);
/* Handle OVS_VPORT_CMD_NEW messages */
nl_cb_set(netlink_callbacks, NL_CB_VALID, NL_CB_CUSTOM,
port_stats_iterator, &list);
if (nl_recvmsgs(ind_ovs_socket, netlink_callbacks) < 0) {
err = INDIGO_ERROR_UNKNOWN;
goto out;
}
out:
if (err != INDIGO_ERROR_NONE) {
of_port_stats_reply_delete(port_stats_reply);
port_stats_reply = NULL;
}
*port_stats_reply_ptr = port_stats_reply;
return err;
}
static int __nl_send_msg(struct nl_sock *sock, struct nl_msg *msg,
int (*rx_handler)(struct nl_msg *, void *),
int (*finish_handler)(struct nl_msg *, void *),
void *data)
{
struct nl_cb *cb;
int err, done;
struct send_msg_data send_data;
DBG("");
cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!cb)
return -ENOMEM;
err = nl_send_auto_complete(sock, msg);
if (err < 0) {
nl_cb_put(cb);
near_error("%s", strerror(err));
return err;
}
err = done = 0;
send_data.done = &done;
send_data.data = data;
send_data.finish_handler = finish_handler;
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, __finish_handler, &send_data);
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &done);
if (rx_handler)
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, rx_handler, data);
while (err == 0 && done == 0)
nl_recvmsgs(sock, cb);
nl_cb_put(cb);
return err;
}
/* function: alloc_ack_callbacks
* allocates a set of netlink callbacks. returns NULL on failure. callbacks will modify retval with <0 meaning failure
* retval - shared state between caller and callback functions
*/
struct nl_cb *alloc_ack_callbacks(int *retval) {
struct nl_cb *callbacks;
callbacks = nl_cb_alloc(NL_CB_DEFAULT);
if(!callbacks) {
return NULL;
}
nl_cb_set(callbacks, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, retval);
nl_cb_err(callbacks, NL_CB_CUSTOM, error_handler, retval);
return callbacks;
}
static int do_listen_events(void)
{
struct nl_cb *cb = nl_cb_alloc((log_level > LOG_WARNING) ?
NL_CB_DEBUG : NL_CB_DEFAULT);
if (!cb) {
LOG_ERR_("failed to allocate netlink callbacks\n");
return -ENOMEM;
}
/* no sequence checking for multicast messages */
nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, valid_handler, NULL);
for (;;)
nl_recvmsgs(state.nl_sock, cb);
nl_cb_put(cb);
return 0;
}
