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hostapd_cli: Implement event handler 

Add an empty event handler in preparation for additional command
completion routines that will need to dynamically build parameters
based on events received.

Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
This commit is contained in:
Mikael Kanstrup 2016-07-07 14:04:35 +02:00 committed by Jouni Malinen
parent 977c0796f9
commit 1cef253aab
1 changed files with 43 additions and 0 deletions
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43
hostapd/hostapd_cli.c
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@ -74,9 +74,11 @@ static const char *pid_file = NULL;
static const char *action_file = NULL;
static int ping_interval = 5;
static int interactive = 0;
static int event_handler_registered = 0;
static void print_help(FILE *stream, const char *cmd);
static char ** list_cmd_list(void);
static void hostapd_cli_receive(int sock, void *eloop_ctx, void *sock_ctx);
static void usage(void)
@ -130,6 +132,30 @@ static int str_starts(const char *src, const char *match)
}
static void register_event_handler(struct wpa_ctrl *ctrl)
{
if (!ctrl_conn)
return;
if (interactive) {
event_handler_registered =
!eloop_register_read_sock(wpa_ctrl_get_fd(ctrl),
hostapd_cli_receive,
NULL, NULL);
}
}
static void unregister_event_handler(struct wpa_ctrl *ctrl)
{
if (!ctrl_conn)
return;
if (interactive && event_handler_registered) {
eloop_unregister_read_sock(wpa_ctrl_get_fd(ctrl));
event_handler_registered = 0;
}
}
static struct wpa_ctrl * hostapd_cli_open_connection(const char *ifname)
{
#ifndef CONFIG_CTRL_IFACE_UDP
@ -169,6 +195,7 @@ static void hostapd_cli_close_connection(void)
if (ctrl_conn == NULL)
return;
unregister_event_handler(ctrl_conn);
if (hostapd_cli_attached) {
wpa_ctrl_detach(ctrl_conn);
hostapd_cli_attached = 0;
@ -944,6 +971,7 @@ static int hostapd_cli_cmd_interface(struct wpa_ctrl *ctrl, int argc,
printf("Connected to interface '%s.\n", ctrl_ifname);
if (wpa_ctrl_attach(ctrl_conn) == 0) {
hostapd_cli_attached = 1;
register_event_handler(ctrl_conn);
} else {
printf("Warning: Failed to attach to "
"hostapd.\n");
@ -1404,6 +1432,11 @@ static void wpa_request(struct wpa_ctrl *ctrl, int argc, char *argv[])
}
static void cli_event(const char *str)
{
}
static void hostapd_cli_recv_pending(struct wpa_ctrl *ctrl, int in_read,
int action_monitor)
{
@ -1418,6 +1451,7 @@ static void hostapd_cli_recv_pending(struct wpa_ctrl *ctrl, int in_read,
if (action_monitor)
hostapd_cli_action_process(buf, len);
else {
cli_event(buf);
if (in_read && first)
printf("\n");
first = 0;
@ -1431,6 +1465,12 @@ static void hostapd_cli_recv_pending(struct wpa_ctrl *ctrl, int in_read,
}
static void hostapd_cli_receive(int sock, void *eloop_ctx, void *sock_ctx)
{
hostapd_cli_recv_pending(ctrl_conn, 0, 0);
}
#define max_args 10
static int tokenize_cmd(char *cmd, char *argv[])
@ -1475,6 +1515,7 @@ static void hostapd_cli_ping(void *eloop_ctx, void *timeout_ctx)
printf("Connection to hostapd re-established\n");
if (wpa_ctrl_attach(ctrl_conn) == 0) {
hostapd_cli_attached = 1;
register_event_handler(ctrl_conn);
} else {
printf("Warning: Failed to attach to "
"hostapd.\n");
@ -1736,6 +1777,7 @@ int main(int argc, char *argv[])
if (interactive || action_file) {
if (wpa_ctrl_attach(ctrl_conn) == 0) {
hostapd_cli_attached = 1;
register_event_handler(ctrl_conn);
} else {
printf("Warning: Failed to attach to hostapd.\n");
if (action_file)
@ -1753,6 +1795,7 @@ int main(int argc, char *argv[])
else
wpa_request(ctrl_conn, argc - optind, &argv[optind]);
unregister_event_handler(ctrl_conn);
os_free(ctrl_ifname);
eloop_destroy();
hostapd_cli_cleanup();