struct l2_packet_data * l2_packet_init(
const char *ifname, const u8 *own_addr, unsigned short protocol,
void (*rx_callback)(void *ctx, const u8 *src_addr,
const u8 *buf, size_t len),
void *rx_callback_ctx, int l2_hdr)
{
struct l2_packet_data *l2;
DWORD thread_id;
l2 = os_zalloc(sizeof(struct l2_packet_data));
if (l2 == NULL)
return NULL;
if (os_strncmp(ifname, "\\Device\\NPF_", 12) == 0)
os_strlcpy(l2->ifname, ifname, sizeof(l2->ifname));
else
os_snprintf(l2->ifname, sizeof(l2->ifname), "\\Device\\NPF_%s",
ifname);
l2->rx_callback = rx_callback;
l2->rx_callback_ctx = rx_callback_ctx;
l2->l2_hdr = l2_hdr;
if (own_addr)
os_memcpy(l2->own_addr, own_addr, ETH_ALEN);
if (l2_packet_init_libpcap(l2, protocol)) {
os_free(l2);
return NULL;
}
l2->rx_avail = CreateEvent(NULL, TRUE, FALSE, NULL);
l2->rx_done = CreateEvent(NULL, TRUE, FALSE, NULL);
l2->rx_notify = CreateEvent(NULL, TRUE, FALSE, NULL);
if (l2->rx_avail == NULL || l2->rx_done == NULL ||
l2->rx_notify == NULL) {
CloseHandle(l2->rx_avail);
CloseHandle(l2->rx_done);
CloseHandle(l2->rx_notify);
pcap_close(l2->pcap);
os_free(l2);
return NULL;
}
eloop_register_event(l2->rx_avail, sizeof(l2->rx_avail),
l2_packet_rx_event, l2, NULL);
l2->running = 1;
l2->rx_thread = CreateThread(NULL, 0, l2_packet_receive_thread, l2, 0,
&thread_id);
return l2;
}
struct l2_packet_data * l2_packet_init(
const char *ifname, const u8 *own_addr, unsigned short protocol,
void (*rx_callback)(void *ctx, const u8 *src_addr,
const u8 *buf, size_t len),
void *rx_callback_ctx, int l2_hdr)
{
struct l2_packet_data *l2;
if (l2_ndisuio_global == NULL) {
l2_ndisuio_global = os_zalloc(sizeof(*l2_ndisuio_global));
if (l2_ndisuio_global == NULL)
return NULL;
l2_ndisuio_global->first_proto = protocol;
}
if (l2_ndisuio_global->refcount >= 2) {
wpa_printf(MSG_ERROR, "L2(NDISUIO): Not more than two "
"simultaneous connections allowed");
return NULL;
}
l2_ndisuio_global->refcount++;
l2 = os_zalloc(sizeof(struct l2_packet_data));
if (l2 == NULL)
return NULL;
l2_ndisuio_global->l2[l2_ndisuio_global->refcount - 1] = l2;
os_strlcpy(l2->ifname, ifname, sizeof(l2->ifname));
l2->rx_callback = rx_callback;
l2->rx_callback_ctx = rx_callback_ctx;
l2->l2_hdr = l2_hdr;
if (own_addr)
os_memcpy(l2->own_addr, own_addr, ETH_ALEN);
if (l2_ndisuio_set_ether_type(protocol) < 0) {
os_free(l2);
return NULL;
}
if (l2_ndisuio_global->refcount > 1) {
wpa_printf(MSG_DEBUG, "L2(NDISUIO): Temporarily setting "
"filtering ethertype to %04x", protocol);
if (l2_ndisuio_global->l2[0])
l2->rx_avail = l2_ndisuio_global->l2[0]->rx_avail;
return l2;
}
l2->rx_avail = CreateEvent(NULL, TRUE, FALSE, NULL);
if (l2->rx_avail == NULL) {
os_free(l2);
return NULL;
}
eloop_register_event(l2->rx_avail, sizeof(l2->rx_avail),
l2_packet_rx_event, l2, NULL);
#ifdef _WIN32_WCE
l2_ndisuio_global->stop_request = CreateEvent(NULL, TRUE, FALSE, NULL);
/*
* This event is being set based on media connect/disconnect
* notifications in driver_ndis.c.
*/
l2_ndisuio_global->ready_for_read =
CreateEvent(NULL, TRUE, FALSE, TEXT("WpaSupplicantConnected"));
l2_ndisuio_global->rx_processed = CreateEvent(NULL, TRUE, FALSE, NULL);
if (l2_ndisuio_global->stop_request == NULL ||
l2_ndisuio_global->ready_for_read == NULL ||
l2_ndisuio_global->rx_processed == NULL) {
if (l2_ndisuio_global->stop_request) {
CloseHandle(l2_ndisuio_global->stop_request);
l2_ndisuio_global->stop_request = NULL;
}
if (l2_ndisuio_global->ready_for_read) {
CloseHandle(l2_ndisuio_global->ready_for_read);
l2_ndisuio_global->ready_for_read = NULL;
}
if (l2_ndisuio_global->rx_processed) {
CloseHandle(l2_ndisuio_global->rx_processed);
l2_ndisuio_global->rx_processed = NULL;
}
eloop_unregister_event(l2->rx_avail, sizeof(l2->rx_avail));
os_free(l2);
return NULL;
}
l2_ndisuio_global->rx_thread = CreateThread(NULL, 0,
l2_packet_rx_thread, l2, 0,
NULL);
if (l2_ndisuio_global->rx_thread == NULL) {
wpa_printf(MSG_INFO, "L2(NDISUIO): Failed to create RX "
"thread: %d", (int) GetLastError());
eloop_unregister_event(l2->rx_avail, sizeof(l2->rx_avail));
CloseHandle(l2_ndisuio_global->stop_request);
l2_ndisuio_global->stop_request = NULL;
os_free(l2);
return NULL;
}
#else /* _WIN32_WCE */
l2_ndisuio_start_read(l2, 0);
#endif /* _WIN32_WCE */
return l2;
}
static int global_open_pipe(struct ctrl_iface_global_priv *priv)
{
struct wpa_global_dst *dst;
DWORD err;
dst = os_zalloc(sizeof(*dst));
if (dst == NULL)
return -1;
wpa_printf(MSG_DEBUG, "CTRL: Open pipe %p", dst);
dst->priv = priv;
dst->pipe = INVALID_HANDLE_VALUE;
dst->overlap.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL);
if (dst->overlap.hEvent == NULL) {
wpa_printf(MSG_ERROR, "CTRL: CreateEvent failed: %d",
(int) GetLastError());
goto fail;
}
eloop_register_event(dst->overlap.hEvent,
sizeof(dst->overlap.hEvent),
wpa_supplicant_global_iface_receive, dst, NULL);
/* TODO: add support for configuring access list for the pipe */
dst->pipe = CreateNamedPipe(NAMED_PIPE_PREFIX,
PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
PIPE_TYPE_MESSAGE |
PIPE_READMODE_MESSAGE |
PIPE_WAIT,
10, REPLY_BUFSIZE, REQUEST_BUFSIZE,
1000, NULL);
if (dst->pipe == INVALID_HANDLE_VALUE) {
wpa_printf(MSG_ERROR, "CTRL: CreateNamedPipe failed: %d",
(int) GetLastError());
goto fail;
}
if (ConnectNamedPipe(dst->pipe, &dst->overlap)) {
wpa_printf(MSG_ERROR, "CTRL: ConnectNamedPipe failed: %d",
(int) GetLastError());
CloseHandle(dst->pipe);
os_free(dst);
return -1;
}
err = GetLastError();
switch (err) {
case ERROR_IO_PENDING:
wpa_printf(MSG_DEBUG, "CTRL: ConnectNamedPipe: connection in "
"progress");
break;
case ERROR_PIPE_CONNECTED:
wpa_printf(MSG_DEBUG, "CTRL: ConnectNamedPipe: already "
"connected");
if (SetEvent(dst->overlap.hEvent))
break;
/* fall through */
default:
wpa_printf(MSG_DEBUG, "CTRL: ConnectNamedPipe error: %d",
(int) err);
CloseHandle(dst->pipe);
os_free(dst);
return -1;
}
dst->next = priv->ctrl_dst;
if (dst->next)
dst->next->prev = dst;
priv->ctrl_dst = dst;
return 0;
fail:
global_close_pipe(dst);
return -1;
}
