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WPS: Add 'wpa_cli wps_pin get' for generating random PINs

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This can be used, e.g., in a UI to generate a PIN without
starting WPS (or P2P) operation.
This commit is contained in:
Jouni Malinen 2011-09-02 21:29:06 +03:00 committed by Jouni Malinen
parent 64fa840a97
commit 98aa7ca5d8
2 changed files with 10 additions and 1 deletions
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5
wpa_supplicant/README-WPS
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@ -127,6 +127,11 @@ This starts the WPS negotiation in the same way as above with the
generated PIN.
If a random PIN is needed for a user interface, "wpa_cli wps_pin get"
can be used to generate a new PIN without starting WPS negotiation.
This random PIN can then be passed as an argument to another wps_pin
call when the actual operation should be started.
If the client design wants to support optional WPS PBC mode, this can
be enabled by either a physical button in the client device or a
virtual button in the user interface. The PBC operation requires that

6
wpa_supplicant/ctrl_iface.c
View file

@ -340,7 +340,10 @@ static int wpa_supplicant_ctrl_iface_wps_pin(struct wpa_supplicant *wpa_s,
if (os_strcmp(cmd, "any") == 0)
_bssid = NULL;
else if (hwaddr_aton(cmd, bssid)) {
else if (os_strcmp(cmd, "get") == 0) {
ret = wps_generate_pin();
goto done;
} else if (hwaddr_aton(cmd, bssid)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PIN: invalid BSSID '%s'",
cmd);
return -1;
@ -367,6 +370,7 @@ static int wpa_supplicant_ctrl_iface_wps_pin(struct wpa_supplicant *wpa_s,
if (ret < 0)
return -1;
done:
/* Return the generated PIN */
ret = os_snprintf(buf, buflen, "%08d", ret);
if (ret < 0 || (size_t) ret >= buflen)