static void wpa_supplicant_global_ctrl_iface_receive(int sock, void *eloop_ctx,
void *sock_ctx)
{
struct wpa_global *global = eloop_ctx;
char buf[256];
int res;
struct sockaddr_un from;
socklen_t fromlen = sizeof(from);
char *reply;
size_t reply_len;
res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
(struct sockaddr *) &from, &fromlen);
if (res < 0) {
perror("recvfrom(ctrl_iface)");
return;
}
buf[res] = '\0';
reply = wpa_supplicant_global_ctrl_iface_process(global, buf,
&reply_len);
if (reply) {
sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
fromlen);
os_free(reply);
} else if (reply_len) {
sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
fromlen);
}
}
static void wpa_supplicant_global_iface_rx(struct wpa_global_dst *dst,
size_t len)
{
struct wpa_global *global = dst->priv->global;
char *reply = NULL, *send_buf;
size_t reply_len = 0, send_len;
char *buf = dst->req_buf;
dst->used = 1;
if (len >= REQUEST_BUFSIZE)
len = REQUEST_BUFSIZE - 1;
buf[len] = '\0';
reply = wpa_supplicant_global_ctrl_iface_process(global, buf,
&reply_len);
if (reply) {
send_buf = reply;
send_len = reply_len;
} else if (reply_len) {
send_buf = "FAIL\n";
send_len = 5;
} else {
os_free(dst->rsp_buf);
dst->rsp_buf = NULL;
return;
}
os_free(dst->rsp_buf);
dst->rsp_buf = os_malloc(send_len);
if (dst->rsp_buf == NULL) {
global_close_pipe(dst);
os_free(reply);
return;
}
os_memcpy(dst->rsp_buf, send_buf, send_len);
os_free(reply);
if (!WriteFileEx(dst->pipe, dst->rsp_buf, send_len, &dst->overlap,
global_iface_write_completed)) {
wpa_printf(MSG_DEBUG, "CTRL: WriteFileEx failed: %d",
(int) GetLastError());
global_close_pipe(dst);
} else {
wpa_printf(MSG_DEBUG, "CTRL: Overlapped write started for %p",
dst);
}
}
static void wpa_supplicant_global_ctrl_iface_receive(int sock, void *eloop_ctx, void *sock_ctx)
{
struct wpa_global *global = eloop_ctx;
struct ctrl_iface_global_priv *priv = sock_ctx;
char buf[256], *pos;
int res;
struct sockaddr_in from;
socklen_t fromlen = sizeof(from);
char *reply;
size_t reply_len;
u8 cookie[COOKIE_LEN];
res = wpa_ctrl_recvfrom(sock, buf, sizeof(buf) - 1, 0, (struct sockaddr *)&from, &fromlen);
if (res < 0) {
wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", strerror(errno));
return;
}
#ifndef CONFIG_CTRL_IFACE_UDP_REMOTE
if (from.sin_addr.s_addr != htonl((127 << 24) | 1)) {
/*
* The OS networking stack is expected to drop this kind of
* frames since the socket is bound to only localhost address.
* Just in case, drop the frame if it is coming from any other
* address.
*/
wpa_printf(MSG_DEBUG, "CTRL: Drop packet from unexpected " "source %s", inet_ntoa(from.sin_addr));
return;
}
#endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
buf[res] = '\0';
if (os_strcmp(buf, "GET_COOKIE") == 0) {
reply = wpa_supplicant_global_get_cookie(priv, &reply_len);
goto done;
}
if (os_strncmp(buf, "COOKIE=", 7) != 0) {
wpa_printf(MSG_DEBUG, "CTLR: No cookie in the request - " "drop request");
return;
}
if (hexstr2bin(buf + 7, cookie, COOKIE_LEN) < 0) {
wpa_printf(MSG_DEBUG, "CTLR: Invalid cookie format in the " "request - drop request");
return;
}
if (os_memcmp(cookie, priv->cookie, COOKIE_LEN) != 0) {
wpa_printf(MSG_DEBUG, "CTLR: Invalid cookie in the request - " "drop request");
return;
}
pos = buf + 7 + 2 * COOKIE_LEN;
while (*pos == ' ') {
pos++;
}
reply = wpa_supplicant_global_ctrl_iface_process(global, pos, &reply_len);
done:
if (reply) {
wpa_ctrl_sendto(sock, reply, reply_len, 0, (struct sockaddr *)&from, fromlen);
os_free(reply);
} else if (reply_len) {
wpa_ctrl_sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *)&from, fromlen);
}
}
