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Allow wpa_cli/hostapd_cli client socket directory to be specified

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This adds a new helper function wpa_ctrl_open2() that can be used
instead of wpa_ctrl_open() to override the default client socket
directory. Add optional -s<directory path> argument to hostapd_cli and
wpa_cli to allow the client socket directory to be specified.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Manikandan Mohan 2015-08-24 21:34:03 -07:00 committed by Jouni Malinen
parent 89a72e1c7f
commit 4ae7120919
4 changed files with 65 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
hostapd/hostapd_cli.c
View File

@ -97,6 +97,7 @@ static int hostapd_cli_attached = 0;
#define CONFIG_CTRL_IFACE_DIR "/var/run/hostapd"
#endif /* CONFIG_CTRL_IFACE_DIR */
static const char *ctrl_iface_dir = CONFIG_CTRL_IFACE_DIR;
static const char *client_socket_dir = NULL;
static char *ctrl_ifname = NULL;
static const char *pid_file = NULL;
@ -119,6 +120,8 @@ static void usage(void)
" -v shown version information\n"
" -p<path> path to find control sockets (default: "
"/var/run/hostapd)\n"
" -s<dir_path> dir path to open client sockets (default: "
CONFIG_CTRL_IFACE_DIR ")\n"
" -a<file> run in daemon mode executing the action file "
"based on events\n"
" from hostapd\n"
@ -145,7 +148,14 @@ static struct wpa_ctrl * hostapd_cli_open_connection(const char *ifname)
return NULL;
snprintf(cfile, flen, "%s/%s", ctrl_iface_dir, ifname);
ctrl_conn = wpa_ctrl_open(cfile);
if (client_socket_dir && client_socket_dir[0] &&
access(client_socket_dir, F_OK) < 0) {
perror(client_socket_dir);
free(cfile);
return NULL;
}
ctrl_conn = wpa_ctrl_open2(cfile, client_socket_dir);
free(cfile);
return ctrl_conn;
}
@ -1337,7 +1347,7 @@ int main(int argc, char *argv[])
return -1;
for (;;) {
c = getopt(argc, argv, "a:BhG:i:p:P:v");
c = getopt(argc, argv, "a:BhG:i:p:P:s:v");
if (c < 0)
break;
switch (c) {
@ -1366,6 +1376,9 @@ int main(int argc, char *argv[])
case 'P':
pid_file = optarg;
break;
case 's':
client_socket_dir = optarg;
break;
default:
usage();
return -1;

23
src/common/wpa_ctrl.c
View File

@ -84,6 +84,13 @@ struct wpa_ctrl {
struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path)
{
return wpa_ctrl_open2(ctrl_path, NULL);
}
struct wpa_ctrl * wpa_ctrl_open2(const char *ctrl_path,
const char *cli_path)
{
struct wpa_ctrl *ctrl;
static int counter = 0;
@ -108,10 +115,18 @@ struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path)
ctrl->local.sun_family = AF_UNIX;
counter++;
try_again:
ret = os_snprintf(ctrl->local.sun_path, sizeof(ctrl->local.sun_path),
CONFIG_CTRL_IFACE_CLIENT_DIR "/"
CONFIG_CTRL_IFACE_CLIENT_PREFIX "%d-%d",
(int) getpid(), counter);
if (cli_path && cli_path[0] == '/') {
ret = os_snprintf(ctrl->local.sun_path,
sizeof(ctrl->local.sun_path),
"%s/" CONFIG_CTRL_IFACE_CLIENT_PREFIX "%d-%d",
cli_path, (int) getpid(), counter);
} else {
ret = os_snprintf(ctrl->local.sun_path,
sizeof(ctrl->local.sun_path),
CONFIG_CTRL_IFACE_CLIENT_DIR "/"
CONFIG_CTRL_IFACE_CLIENT_PREFIX "%d-%d",
(int) getpid(), counter);
}
if (os_snprintf_error(sizeof(ctrl->local.sun_path), ret)) {
close(ctrl->s);
os_free(ctrl);

14
src/common/wpa_ctrl.h
View File

@ -316,6 +316,20 @@ enum wpa_vendor_elem_frame {
*/
struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path);
/**
* wpa_ctrl_open2 - Open a control interface to wpa_supplicant/hostapd
* @ctrl_path: Path for UNIX domain sockets; ignored if UDP sockets are used.
* @cli_path: Path for client UNIX domain sockets; ignored if UDP socket
* is used.
* Returns: Pointer to abstract control interface data or %NULL on failure
*
* This function is used to open a control interface to wpa_supplicant/hostapd
* when the socket path for client need to be specified explicitly. Default
* ctrl_path is usually /var/run/wpa_supplicant or /var/run/hostapd and client
* socket path is /tmp.
*/
struct wpa_ctrl * wpa_ctrl_open2(const char *ctrl_path, const char *cli_path);
/**
* wpa_ctrl_close - Close a control interface to wpa_supplicant/hostapd

21
wpa_supplicant/wpa_cli.c
View File

@ -76,6 +76,7 @@ static int wpa_cli_last_id = 0;
#define CONFIG_CTRL_IFACE_DIR "/var/run/wpa_supplicant"
#endif /* CONFIG_CTRL_IFACE_DIR */
static const char *ctrl_iface_dir = CONFIG_CTRL_IFACE_DIR;
static const char *client_socket_dir = NULL;
static char *ctrl_ifname = NULL;
static const char *pid_file = NULL;
static const char *action_file = NULL;
@ -107,7 +108,9 @@ static void usage(void)
{
printf("wpa_cli [-p<path to ctrl sockets>] [-i<ifname>] [-hvB] "
"[-a<action file>] \\\n"
" [-P<pid file>] [-g<global ctrl>] [-G<ping interval>] "
" [-P<pid file>] [-g<global ctrl>] [-G<ping interval>] "
"\\\n"
" [-s<wpa_client_socket_file_path>] "
"[command..]\n"
" -h = help (show this usage text)\n"
" -v = shown version information\n"
@ -330,6 +333,13 @@ static int wpa_cli_open_connection(const char *ifname, int attach)
}
#endif /* ANDROID */
if (client_socket_dir && client_socket_dir[0] &&
access(client_socket_dir, F_OK) < 0) {
perror(client_socket_dir);
os_free(cfile);
return -1;
}
if (cfile == NULL) {
flen = os_strlen(ctrl_iface_dir) + os_strlen(ifname) + 2;
cfile = os_malloc(flen);
@ -343,14 +353,14 @@ static int wpa_cli_open_connection(const char *ifname, int attach)
}
}
ctrl_conn = wpa_ctrl_open(cfile);
ctrl_conn = wpa_ctrl_open2(cfile, client_socket_dir);
if (ctrl_conn == NULL) {
os_free(cfile);
return -1;
}
if (attach && interactive)
mon_conn = wpa_ctrl_open(cfile);
mon_conn = wpa_ctrl_open2(cfile, client_socket_dir);
else
mon_conn = NULL;
os_free(cfile);
@ -4255,7 +4265,7 @@ int main(int argc, char *argv[])
return -1;
for (;;) {
c = getopt(argc, argv, "a:Bg:G:hi:p:P:v");
c = getopt(argc, argv, "a:Bg:G:hi:p:P:s:v");
if (c < 0)
break;
switch (c) {
@ -4287,6 +4297,9 @@ int main(int argc, char *argv[])
case 'P':
pid_file = optarg;
break;
case 's':
client_socket_dir = optarg;
break;
default:
usage();
return -1;