static int wpa_supplicant_ctrl_iface_get_capability(
struct wpa_supplicant *wpa_s, const char *_field, char *buf,
size_t buflen)
{
struct wpa_driver_capa capa;
int res;
char *strict;
char field[30];
size_t len;
/* Determine whether or not strict checking was requested */
len = os_strlcpy(field, _field, sizeof(field));
if (len >= sizeof(field))
return -1;
strict = os_strchr(field, ' ');
if (strict != NULL) {
*strict++ = '\0';
if (os_strcmp(strict, "strict") != 0)
return -1;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
field, strict ? strict : "");
if (os_strcmp(field, "eap") == 0) {
return eap_get_names(buf, buflen);
}
res = wpa_drv_get_capa(wpa_s, &capa);
if (os_strcmp(field, "pairwise") == 0)
return ctrl_iface_get_capability_pairwise(res, strict, &capa,
buf, buflen);
if (os_strcmp(field, "group") == 0)
return ctrl_iface_get_capability_group(res, strict, &capa,
buf, buflen);
if (os_strcmp(field, "key_mgmt") == 0)
return ctrl_iface_get_capability_key_mgmt(res, strict, &capa,
buf, buflen);
if (os_strcmp(field, "proto") == 0)
return ctrl_iface_get_capability_proto(res, strict, &capa,
buf, buflen);
if (os_strcmp(field, "auth_alg") == 0)
return ctrl_iface_get_capability_auth_alg(res, strict, &capa,
buf, buflen);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
field);
return -1;
}
static int wpa_supplicant_ctrl_iface_get_capability(
struct wpa_supplicant *wpa_s, const char *_field, char *buf,
size_t buflen)
{
struct wpa_driver_capa capa;
int res, first = 1, ret;
char *pos, *end, *strict;
char field[30];
/* Determine whether or not strict checking was requested */
os_snprintf(field, sizeof(field), "%s", _field);
field[sizeof(field) - 1] = '\0';
strict = os_strchr(field, ' ');
if (strict != NULL) {
*strict++ = '\0';
if (os_strcmp(strict, "strict") != 0)
return -1;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
field, strict ? strict : "");
if (os_strcmp(field, "eap") == 0) {
return eap_get_names(buf, buflen);
}
res = wpa_drv_get_capa(wpa_s, &capa);
pos = buf;
end = pos + buflen;
if (os_strcmp(field, "pairwise") == 0) {
if (res < 0) {
if (strict)
return 0;
ret = os_snprintf(buf, buflen, "CCMP TKIP NONE");
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
ret = os_snprintf(pos, end - pos, "%sCCMP",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
ret = os_snprintf(pos, end - pos, "%sTKIP",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
ret = os_snprintf(pos, end - pos, "%sNONE",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
return pos - buf;
}
if (os_strcmp(field, "group") == 0) {
if (res < 0) {
if (strict)
return 0;
ret = os_snprintf(buf, buflen,
"CCMP TKIP WEP104 WEP40");
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
ret = os_snprintf(pos, end - pos, "%sCCMP",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
ret = os_snprintf(pos, end - pos, "%sTKIP",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
ret = os_snprintf(pos, end - pos, "%sWEP104",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
ret = os_snprintf(pos, end - pos, "%sWEP40",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
return pos - buf;
}
if (os_strcmp(field, "key_mgmt") == 0) {
if (res < 0) {
if (strict)
return 0;
ret = os_snprintf(buf, buflen, "WPA-PSK WPA-EAP "
"IEEE8021X WPA-NONE NONE");
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
ret = os_snprintf(pos, end - pos, "NONE IEEE8021X");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
ret = os_snprintf(pos, end - pos, " WPA-EAP");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
ret = os_snprintf(pos, end - pos, " WPA-PSK");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
ret = os_snprintf(pos, end - pos, " WPA-NONE");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
return pos - buf;
}
if (os_strcmp(field, "proto") == 0) {
if (res < 0) {
if (strict)
return 0;
ret = os_snprintf(buf, buflen, "RSN WPA");
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
ret = os_snprintf(pos, end - pos, "%sRSN",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
ret = os_snprintf(pos, end - pos, "%sWPA",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
return pos - buf;
}
if (os_strcmp(field, "auth_alg") == 0) {
if (res < 0) {
if (strict)
return 0;
ret = os_snprintf(buf, buflen, "OPEN SHARED LEAP");
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
ret = os_snprintf(pos, end - pos, "%sOPEN",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
ret = os_snprintf(pos, end - pos, "%sSHARED",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
ret = os_snprintf(pos, end - pos, "%sLEAP",
first ? "" : " ");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
first = 0;
}
return pos - buf;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
field);
return -1;
}