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fragattacks/wpa_supplicant/ctrl_iface.c

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/*
* WPA Supplicant / Control interface (shared code for all backends)
* Copyright (c) 2004-2010, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_ctrl.h"
#include "eap_peer/eap.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "rsn_supp/wpa.h"
#include "rsn_supp/preauth.h"
#include "rsn_supp/pmksa_cache.h"
#include "l2_packet/l2_packet.h"
#include "wps/wps.h"
#include "config.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "wps_supplicant.h"
#include "ibss_rsn.h"
#include "ap.h"
#include "notify.h"
#include "bss.h"
#include "scan.h"
#include "ctrl_iface.h"
extern struct wpa_driver_ops *wpa_drivers[];
static int wpa_supplicant_global_iface_list(struct wpa_global *global,
char *buf, int len);
static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
char *buf, int len);
static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
char *cmd)
{
char *value;
int ret = 0;
value = os_strchr(cmd, ' ');
if (value == NULL)
return -1;
*value++ = '\0';
wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
if (os_strcasecmp(cmd, "EAPOL::heldPeriod") == 0) {
eapol_sm_configure(wpa_s->eapol,
atoi(value), -1, -1, -1);
} else if (os_strcasecmp(cmd, "EAPOL::authPeriod") == 0) {
eapol_sm_configure(wpa_s->eapol,
-1, atoi(value), -1, -1);
} else if (os_strcasecmp(cmd, "EAPOL::startPeriod") == 0) {
eapol_sm_configure(wpa_s->eapol,
-1, -1, atoi(value), -1);
} else if (os_strcasecmp(cmd, "EAPOL::maxStart") == 0) {
eapol_sm_configure(wpa_s->eapol,
-1, -1, -1, atoi(value));
} else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKLifetime") == 0) {
if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
atoi(value)))
ret = -1;
} else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKReauthThreshold") ==
0) {
if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
atoi(value)))
ret = -1;
} else if (os_strcasecmp(cmd, "dot11RSNAConfigSATimeout") == 0) {
if (wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, atoi(value)))
ret = -1;
} else
ret = -1;
return ret;
}
#ifdef IEEE8021X_EAPOL
static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant *wpa_s,
char *addr)
{
u8 bssid[ETH_ALEN];
struct wpa_ssid *ssid = wpa_s->current_ssid;
if (hwaddr_aton(addr, bssid)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH: invalid address "
"'%s'", addr);
return -1;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH " MACSTR, MAC2STR(bssid));
rsn_preauth_deinit(wpa_s->wpa);
if (rsn_preauth_init(wpa_s->wpa, bssid, ssid ? &ssid->eap : NULL))
return -1;
return 0;
}
#endif /* IEEE8021X_EAPOL */
#ifdef CONFIG_PEERKEY
/* MLME-STKSTART.request(peer) */
static int wpa_supplicant_ctrl_iface_stkstart(
struct wpa_supplicant *wpa_s, char *addr)
{
u8 peer[ETH_ALEN];
if (hwaddr_aton(addr, peer)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART: invalid "
"address '%s'", addr);
return -1;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART " MACSTR,
MAC2STR(peer));
return wpa_sm_stkstart(wpa_s->wpa, peer);
}
#endif /* CONFIG_PEERKEY */
#ifdef CONFIG_IEEE80211R
static int wpa_supplicant_ctrl_iface_ft_ds(
struct wpa_supplicant *wpa_s, char *addr)
{
u8 target_ap[ETH_ALEN];
struct wpa_bss *bss;
const u8 *mdie;
if (hwaddr_aton(addr, target_ap)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS: invalid "
"address '%s'", addr);
return -1;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS " MACSTR, MAC2STR(target_ap));
bss = wpa_bss_get_bssid(wpa_s, target_ap);
if (bss)
mdie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
else
mdie = NULL;
return wpa_ft_start_over_ds(wpa_s->wpa, target_ap, mdie);
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_WPS
static int wpa_supplicant_ctrl_iface_wps_pbc(struct wpa_supplicant *wpa_s,
char *cmd)
{
u8 bssid[ETH_ALEN], *_bssid = bssid;
if (cmd == NULL || os_strcmp(cmd, "any") == 0)
_bssid = NULL;
else if (hwaddr_aton(cmd, bssid)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PBC: invalid BSSID '%s'",
cmd);
return -1;
}
#ifdef CONFIG_AP
if (wpa_s->ap_iface)
return wpa_supplicant_ap_wps_pbc(wpa_s, _bssid);
#endif /* CONFIG_AP */
return wpas_wps_start_pbc(wpa_s, _bssid);
}
static int wpa_supplicant_ctrl_iface_wps_pin(struct wpa_supplicant *wpa_s,
char *cmd, char *buf,
size_t buflen)
{
u8 bssid[ETH_ALEN], *_bssid = bssid;
char *pin;
int ret;
pin = os_strchr(cmd, ' ');
if (pin)
*pin++ = '\0';
if (os_strcmp(cmd, "any") == 0)
_bssid = NULL;
else if (hwaddr_aton(cmd, bssid)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PIN: invalid BSSID '%s'",
cmd);
return -1;
}
#ifdef CONFIG_AP
if (wpa_s->ap_iface)
return wpa_supplicant_ap_wps_pin(wpa_s, _bssid, pin,
buf, buflen);
#endif /* CONFIG_AP */
if (pin) {
ret = wpas_wps_start_pin(wpa_s, _bssid, pin);
if (ret < 0)
return -1;
ret = os_snprintf(buf, buflen, "%s", pin);
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
ret = wpas_wps_start_pin(wpa_s, _bssid, NULL);
if (ret < 0)
return -1;
/* Return the generated PIN */
ret = os_snprintf(buf, buflen, "%08d", ret);
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
#ifdef CONFIG_WPS_OOB
static int wpa_supplicant_ctrl_iface_wps_oob(struct wpa_supplicant *wpa_s,
char *cmd)
{
char *path, *method, *name;
path = os_strchr(cmd, ' ');
if (path == NULL)
return -1;
*path++ = '\0';
method = os_strchr(path, ' ');
if (method == NULL)
return -1;
*method++ = '\0';
name = os_strchr(method, ' ');
if (name != NULL)
*name++ = '\0';
return wpas_wps_start_oob(wpa_s, cmd, path, method, name);
}
#endif /* CONFIG_WPS_OOB */
static int wpa_supplicant_ctrl_iface_wps_reg(struct wpa_supplicant *wpa_s,
char *cmd)
{
u8 bssid[ETH_ALEN], *_bssid = bssid;
char *pin;
char *new_ssid;
char *new_auth;
char *new_encr;
char *new_key;
struct wps_new_ap_settings ap;
pin = os_strchr(cmd, ' ');
if (pin == NULL)
return -1;
*pin++ = '\0';
if (os_strcmp(cmd, "any") == 0)
_bssid = NULL;
else if (hwaddr_aton(cmd, bssid)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_REG: invalid BSSID '%s'",
cmd);
return -1;
}
new_ssid = os_strchr(pin, ' ');
if (new_ssid == NULL)
return wpas_wps_start_reg(wpa_s, _bssid, pin, NULL);
*new_ssid++ = '\0';
new_auth = os_strchr(new_ssid, ' ');
if (new_auth == NULL)
return -1;
*new_auth++ = '\0';
new_encr = os_strchr(new_auth, ' ');
if (new_encr == NULL)
return -1;
*new_encr++ = '\0';
new_key = os_strchr(new_encr, ' ');
if (new_key == NULL)
return -1;
*new_key++ = '\0';
os_memset(&ap, 0, sizeof(ap));
ap.ssid_hex = new_ssid;
ap.auth = new_auth;
ap.encr = new_encr;
ap.key_hex = new_key;
return wpas_wps_start_reg(wpa_s, _bssid, pin, &ap);
}
#ifdef CONFIG_WPS_ER
static int wpa_supplicant_ctrl_iface_wps_er_pin(struct wpa_supplicant *wpa_s,
char *cmd)
{
char *uuid = cmd, *pin;
pin = os_strchr(uuid, ' ');
if (pin == NULL)
return -1;
*pin++ = '\0';
return wpas_wps_er_add_pin(wpa_s, uuid, pin);
}
static int wpa_supplicant_ctrl_iface_wps_er_learn(struct wpa_supplicant *wpa_s,
char *cmd)
{
char *uuid = cmd, *pin;
pin = os_strchr(uuid, ' ');
if (pin == NULL)
return -1;
*pin++ = '\0';
return wpas_wps_er_learn(wpa_s, uuid, pin);
}
#endif /* CONFIG_WPS_ER */
#endif /* CONFIG_WPS */
#ifdef CONFIG_IBSS_RSN
static int wpa_supplicant_ctrl_iface_ibss_rsn(
struct wpa_supplicant *wpa_s, char *addr)
{
u8 peer[ETH_ALEN];
if (hwaddr_aton(addr, peer)) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE IBSS_RSN: invalid "
"address '%s'", addr);
return -1;
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE IBSS_RSN " MACSTR,
MAC2STR(peer));
return ibss_rsn_start(wpa_s->ibss_rsn, peer);
}
#endif /* CONFIG_IBSS_RSN */
static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant *wpa_s,
char *rsp)
{
#ifdef IEEE8021X_EAPOL
char *pos, *id_pos;
int id;
struct wpa_ssid *ssid;
struct eap_peer_config *eap;
pos = os_strchr(rsp, '-');
if (pos == NULL)
return -1;
*pos++ = '\0';
id_pos = pos;
pos = os_strchr(pos, ':');
if (pos == NULL)
return -1;
*pos++ = '\0';
id = atoi(id_pos);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: field=%s id=%d", rsp, id);
wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
(u8 *) pos, os_strlen(pos));
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
"to update", id);
return -1;
}
eap = &ssid->eap;
if (os_strcmp(rsp, "IDENTITY") == 0) {
os_free(eap->identity);
eap->identity = (u8 *) os_strdup(pos);
eap->identity_len = os_strlen(pos);
eap->pending_req_identity = 0;
if (ssid == wpa_s->current_ssid)
wpa_s->reassociate = 1;
} else if (os_strcmp(rsp, "PASSWORD") == 0) {
os_free(eap->password);
eap->password = (u8 *) os_strdup(pos);
eap->password_len = os_strlen(pos);
eap->pending_req_password = 0;
if (ssid == wpa_s->current_ssid)
wpa_s->reassociate = 1;
} else if (os_strcmp(rsp, "NEW_PASSWORD") == 0) {
os_free(eap->new_password);
eap->new_password = (u8 *) os_strdup(pos);
eap->new_password_len = os_strlen(pos);
eap->pending_req_new_password = 0;
if (ssid == wpa_s->current_ssid)
wpa_s->reassociate = 1;
} else if (os_strcmp(rsp, "PIN") == 0) {
os_free(eap->pin);
eap->pin = os_strdup(pos);
eap->pending_req_pin = 0;
if (ssid == wpa_s->current_ssid)
wpa_s->reassociate = 1;
} else if (os_strcmp(rsp, "OTP") == 0) {
os_free(eap->otp);
eap->otp = (u8 *) os_strdup(pos);
eap->otp_len = os_strlen(pos);
os_free(eap->pending_req_otp);
eap->pending_req_otp = NULL;
eap->pending_req_otp_len = 0;
} else if (os_strcmp(rsp, "PASSPHRASE") == 0) {
os_free(eap->private_key_passwd);
eap->private_key_passwd = (u8 *) os_strdup(pos);
eap->pending_req_passphrase = 0;
if (ssid == wpa_s->current_ssid)
wpa_s->reassociate = 1;
} else {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", rsp);
return -1;
}
return 0;
#else /* IEEE8021X_EAPOL */
wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included");
return -1;
#endif /* IEEE8021X_EAPOL */
}
static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
const char *params,
char *buf, size_t buflen)
{
char *pos, *end, tmp[30];
int res, verbose, ret;
verbose = os_strcmp(params, "-VERBOSE") == 0;
pos = buf;
end = buf + buflen;
if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
struct wpa_ssid *ssid = wpa_s->current_ssid;
ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n",
MAC2STR(wpa_s->bssid));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (ssid) {
u8 *_ssid = ssid->ssid;
size_t ssid_len = ssid->ssid_len;
u8 ssid_buf[MAX_SSID_LEN];
if (ssid_len == 0) {
int _res = wpa_drv_get_ssid(wpa_s, ssid_buf);
if (_res < 0)
ssid_len = 0;
else
ssid_len = _res;
_ssid = ssid_buf;
}
ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n",
wpa_ssid_txt(_ssid, ssid_len),
ssid->id);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (ssid->id_str) {
ret = os_snprintf(pos, end - pos,
"id_str=%s\n",
ssid->id_str);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
switch (ssid->mode) {
case WPAS_MODE_INFRA:
ret = os_snprintf(pos, end - pos,
"mode=station\n");
break;
case WPAS_MODE_IBSS:
ret = os_snprintf(pos, end - pos,
"mode=IBSS\n");
break;
case WPAS_MODE_AP:
ret = os_snprintf(pos, end - pos,
"mode=AP\n");
break;
default:
ret = 0;
break;
}
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
pos += ap_ctrl_iface_wpa_get_status(wpa_s, pos,
end - pos,
verbose);
} else
#endif /* CONFIG_AP */
pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose);
}
ret = os_snprintf(pos, end - pos, "wpa_state=%s\n",
wpa_supplicant_state_txt(wpa_s->wpa_state));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (wpa_s->l2 &&
l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) {
ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos,
verbose);
if (res >= 0)
pos += res;
}
res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose);
if (res >= 0)
pos += res;
return pos - buf;
}
static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant *wpa_s,
char *cmd)
{
char *pos;
int id;
struct wpa_ssid *ssid;
u8 bssid[ETH_ALEN];
/* cmd: "<network id> <BSSID>" */
pos = os_strchr(cmd, ' ');
if (pos == NULL)
return -1;
*pos++ = '\0';
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: id=%d bssid='%s'", id, pos);
if (hwaddr_aton(pos, bssid)) {
wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", pos);
return -1;
}
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
"to update", id);
return -1;
}
os_memcpy(ssid->bssid, bssid, ETH_ALEN);
ssid->bssid_set = !is_zero_ether_addr(bssid);
return 0;
}
static int wpa_supplicant_ctrl_iface_list_networks(
struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
char *pos, *end;
struct wpa_ssid *ssid;
int ret;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos,
"network id / ssid / bssid / flags\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ssid = wpa_s->conf->ssid;
while (ssid) {
ret = os_snprintf(pos, end - pos, "%d\t%s",
ssid->id,
wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (ssid->bssid_set) {
ret = os_snprintf(pos, end - pos, "\t" MACSTR,
MAC2STR(ssid->bssid));
} else {
ret = os_snprintf(pos, end - pos, "\tany");
}
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "\t%s%s",
ssid == wpa_s->current_ssid ?
"[CURRENT]" : "",
ssid->disabled ? "[DISABLED]" : "");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ssid = ssid->next;
}
return pos - buf;
}
static char * wpa_supplicant_cipher_txt(char *pos, char *end, int cipher)
{
int first = 1, ret;
ret = os_snprintf(pos, end - pos, "-");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
if (cipher & WPA_CIPHER_NONE) {
ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (cipher & WPA_CIPHER_WEP40) {
ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (cipher & WPA_CIPHER_WEP104) {
ret = os_snprintf(pos, end - pos, "%sWEP104",
first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (cipher & WPA_CIPHER_TKIP) {
ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (cipher & WPA_CIPHER_CCMP) {
ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
return pos;
}
static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto,
const u8 *ie, size_t ie_len)
{
struct wpa_ie_data data;
int first, ret;
ret = os_snprintf(pos, end - pos, "[%s-", proto);
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
if (wpa_parse_wpa_ie(ie, ie_len, &data) < 0) {
ret = os_snprintf(pos, end - pos, "?]");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
return pos;
}
first = 1;
if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
ret = os_snprintf(pos, end - pos, "%sEAP", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (data.key_mgmt & WPA_KEY_MGMT_PSK) {
ret = os_snprintf(pos, end - pos, "%sPSK", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (data.key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
ret = os_snprintf(pos, end - pos, "%sNone", first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
#ifdef CONFIG_IEEE80211R
if (data.key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
ret = os_snprintf(pos, end - pos, "%sFT/EAP",
first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (data.key_mgmt & WPA_KEY_MGMT_FT_PSK) {
ret = os_snprintf(pos, end - pos, "%sFT/PSK",
first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
ret = os_snprintf(pos, end - pos, "%sEAP-SHA256",
first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
if (data.key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
ret = os_snprintf(pos, end - pos, "%sPSK-SHA256",
first ? "" : "+");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
first = 0;
}
#endif /* CONFIG_IEEE80211W */
pos = wpa_supplicant_cipher_txt(pos, end, data.pairwise_cipher);
if (data.capabilities & WPA_CAPABILITY_PREAUTH) {
ret = os_snprintf(pos, end - pos, "-preauth");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
}
ret = os_snprintf(pos, end - pos, "]");
if (ret < 0 || ret >= end - pos)
return pos;
pos += ret;
return pos;
}
#ifdef CONFIG_WPS
static char * wpa_supplicant_wps_ie_txt_buf(char *pos, char *end,
struct wpabuf *wps_ie)
{
int ret;
const char *txt;
if (wps_ie == NULL)
return pos;
if (wps_is_selected_pbc_registrar(wps_ie))
txt = "[WPS-PBC]";
else if (wps_is_selected_pin_registrar(wps_ie))
txt = "[WPS-PIN]";
else
txt = "[WPS]";
ret = os_snprintf(pos, end - pos, "%s", txt);
if (ret >= 0 && ret < end - pos)
pos += ret;
wpabuf_free(wps_ie);
return pos;
}
#endif /* CONFIG_WPS */
static char * wpa_supplicant_wps_ie_txt(char *pos, char *end,
const struct wpa_bss *bss)
{
#ifdef CONFIG_WPS
struct wpabuf *wps_ie;
wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
return wpa_supplicant_wps_ie_txt_buf(pos, end, wps_ie);
#else /* CONFIG_WPS */
return pos;
#endif /* CONFIG_WPS */
}
/* Format one result on one text line into a buffer. */
static int wpa_supplicant_ctrl_iface_scan_result(
const struct wpa_bss *bss, char *buf, size_t buflen)
{
char *pos, *end;
int ret;
const u8 *ie, *ie2;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
MAC2STR(bss->bssid), bss->freq, bss->level);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (ie)
pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
ie2 = wpa_bss_get_ie(bss, WLAN_EID_RSN);
if (ie2)
pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
pos = wpa_supplicant_wps_ie_txt(pos, end, bss);
if (!ie && !ie2 && bss->caps & IEEE80211_CAP_PRIVACY) {
ret = os_snprintf(pos, end - pos, "[WEP]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (bss->caps & IEEE80211_CAP_IBSS) {
ret = os_snprintf(pos, end - pos, "[IBSS]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (bss->caps & IEEE80211_CAP_ESS) {
ret = os_snprintf(pos, end - pos, "[ESS]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
ret = os_snprintf(pos, end - pos, "\t%s",
wpa_ssid_txt(bss->ssid, bss->ssid_len));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
return pos - buf;
}
static int wpa_supplicant_ctrl_iface_scan_results(
struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
char *pos, *end;
struct wpa_bss *bss;
int ret;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / "
"flags / ssid\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
ret = wpa_supplicant_ctrl_iface_scan_result(bss, pos,
end - pos);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
return pos - buf;
}
static int wpa_supplicant_ctrl_iface_select_network(
struct wpa_supplicant *wpa_s, char *cmd)
{
int id;
struct wpa_ssid *ssid;
/* cmd: "<network id>" or "any" */
if (os_strcmp(cmd, "any") == 0) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK any");
ssid = NULL;
} else {
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK id=%d", id);
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
"network id=%d", id);
return -1;
}
}
wpa_supplicant_select_network(wpa_s, ssid);
return 0;
}
static int wpa_supplicant_ctrl_iface_enable_network(
struct wpa_supplicant *wpa_s, char *cmd)
{
int id;
struct wpa_ssid *ssid;
/* cmd: "<network id>" or "all" */
if (os_strcmp(cmd, "all") == 0) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK all");
ssid = NULL;
} else {
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK id=%d", id);
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
"network id=%d", id);
return -1;
}
}
wpa_supplicant_enable_network(wpa_s, ssid);
return 0;
}
static int wpa_supplicant_ctrl_iface_disable_network(
struct wpa_supplicant *wpa_s, char *cmd)
{
int id;
struct wpa_ssid *ssid;
/* cmd: "<network id>" or "all" */
if (os_strcmp(cmd, "all") == 0) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK all");
ssid = NULL;
} else {
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK id=%d", id);
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
"network id=%d", id);
return -1;
}
}
wpa_supplicant_disable_network(wpa_s, ssid);
return 0;
}
static int wpa_supplicant_ctrl_iface_add_network(
struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
struct wpa_ssid *ssid;
int ret;
wpa_printf(MSG_DEBUG, "CTRL_IFACE: ADD_NETWORK");
ssid = wpa_config_add_network(wpa_s->conf);
if (ssid == NULL)
return -1;
wpas_notify_network_added(wpa_s, ssid);
ssid->disabled = 1;
wpa_config_set_network_defaults(ssid);
ret = os_snprintf(buf, buflen, "%d\n", ssid->id);
if (ret < 0 || (size_t) ret >= buflen)
return -1;
return ret;
}
static int wpa_supplicant_ctrl_iface_remove_network(
struct wpa_supplicant *wpa_s, char *cmd)
{
int id;
struct wpa_ssid *ssid;
/* cmd: "<network id>" or "all" */
if (os_strcmp(cmd, "all") == 0) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK all");
ssid = wpa_s->conf->ssid;
while (ssid) {
struct wpa_ssid *remove_ssid = ssid;
id = ssid->id;
ssid = ssid->next;
wpas_notify_network_removed(wpa_s, remove_ssid);
wpa_config_remove_network(wpa_s->conf, id);
}
if (wpa_s->current_ssid) {
eapol_sm_invalidate_cached_session(wpa_s->eapol);
wpa_supplicant_disassociate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
}
return 0;
}
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK id=%d", id);
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL ||
wpa_config_remove_network(wpa_s->conf, id) < 0) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
"id=%d", id);
return -1;
}
if (ssid == wpa_s->current_ssid) {
/*
* Invalidate the EAP session cache if the current network is
* removed.
*/
eapol_sm_invalidate_cached_session(wpa_s->eapol);
wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
}
return 0;
}
static int wpa_supplicant_ctrl_iface_set_network(
struct wpa_supplicant *wpa_s, char *cmd)
{
int id;
struct wpa_ssid *ssid;
char *name, *value;
/* cmd: "<network id> <variable name> <value>" */
name = os_strchr(cmd, ' ');
if (name == NULL)
return -1;
*name++ = '\0';
value = os_strchr(name, ' ');
if (value == NULL)
return -1;
*value++ = '\0';
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: SET_NETWORK id=%d name='%s'",
id, name);
wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
(u8 *) value, os_strlen(value));
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
"id=%d", id);
return -1;
}
if (wpa_config_set(ssid, name, value, 0) < 0) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to set network "
"variable '%s'", name);
return -1;
}
if (wpa_s->current_ssid == ssid) {
/*
* Invalidate the EAP session cache if anything in the current
* configuration changes.
*/
eapol_sm_invalidate_cached_session(wpa_s->eapol);
}
if ((os_strcmp(name, "psk") == 0 &&
value[0] == '"' && ssid->ssid_len) ||
(os_strcmp(name, "ssid") == 0 && ssid->passphrase))
wpa_config_update_psk(ssid);
else if (os_strcmp(name, "priority") == 0)
wpa_config_update_prio_list(wpa_s->conf);
return 0;
}
static int wpa_supplicant_ctrl_iface_get_network(
struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen)
{
int id;
size_t res;
struct wpa_ssid *ssid;
char *name, *value;
/* cmd: "<network id> <variable name>" */
name = os_strchr(cmd, ' ');
if (name == NULL || buflen == 0)
return -1;
*name++ = '\0';
id = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_NETWORK id=%d name='%s'",
id, name);
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
"id=%d", id);
return -1;
}
value = wpa_config_get_no_key(ssid, name);
if (value == NULL) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to get network "
"variable '%s'", name);
return -1;
}
res = os_strlcpy(buf, value, buflen);
if (res >= buflen) {
os_free(value);
return -1;
}
os_free(value);
return res;
}
#ifndef CONFIG_NO_CONFIG_WRITE
static int wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant *wpa_s)
{
int ret;
if (!wpa_s->conf->update_config) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Not allowed "
"to update configuration (update_config=0)");
return -1;
}
ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
if (ret) {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Failed to "
"update configuration");
} else {
wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Configuration"
" updated");
}
return ret;
}
#endif /* CONFIG_NO_CONFIG_WRITE */
static int ctrl_iface_get_capability_pairwise(int res, char *strict,
struct wpa_driver_capa *capa,
char *buf, size_t buflen)
{
int ret, first = 1;
char *pos, *end;
size_t len;
pos = buf;
end = pos + buflen;
if (res < 0) {
if (strict)
return 0;
len = os_strlcpy(buf, "CCMP TKIP NONE", buflen);
if (len >= buflen)
return -1;
return len;
}
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;
}
static int ctrl_iface_get_capability_group(int res, char *strict,
struct wpa_driver_capa *capa,
char *buf, size_t buflen)
{
int ret, first = 1;
char *pos, *end;
size_t len;
pos = buf;
end = pos + buflen;
if (res < 0) {
if (strict)
return 0;
len = os_strlcpy(buf, "CCMP TKIP WEP104 WEP40", buflen);
if (len >= buflen)
return -1;
return len;
}
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;
}
static int ctrl_iface_get_capability_key_mgmt(int res, char *strict,
struct wpa_driver_capa *capa,
char *buf, size_t buflen)
{
int ret;
char *pos, *end;
size_t len;
pos = buf;
end = pos + buflen;
if (res < 0) {
if (strict)
return 0;
len = os_strlcpy(buf, "WPA-PSK WPA-EAP IEEE8021X WPA-NONE "
"NONE", buflen);
if (len >= buflen)
return -1;
return len;
}
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;
}
static int ctrl_iface_get_capability_proto(int res, char *strict,
struct wpa_driver_capa *capa,
char *buf, size_t buflen)
{
int ret, first = 1;
char *pos, *end;
size_t len;
pos = buf;
end = pos + buflen;
if (res < 0) {
if (strict)
return 0;
len = os_strlcpy(buf, "RSN WPA", buflen);
if (len >= buflen)
return -1;
return len;
}
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;
}
static int ctrl_iface_get_capability_auth_alg(int res, char *strict,
struct wpa_driver_capa *capa,
char *buf, size_t buflen)
{
int ret, first = 1;
char *pos, *end;
size_t len;
pos = buf;
end = pos + buflen;
if (res < 0) {
if (strict)
return 0;
len = os_strlcpy(buf, "OPEN SHARED LEAP", buflen);
if (len >= buflen)
return -1;
return len;
}
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;
}
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_bss(struct wpa_supplicant *wpa_s,
const char *cmd, char *buf,
size_t buflen)
{
u8 bssid[ETH_ALEN];
size_t i;
struct wpa_bss *bss;
int ret;
char *pos, *end;
const u8 *ie, *ie2;
if (os_strcmp(cmd, "FIRST") == 0)
bss = dl_list_first(&wpa_s->bss, struct wpa_bss, list);
else if (os_strncmp(cmd, "ID-", 3) == 0) {
i = atoi(cmd + 3);
bss = wpa_bss_get_id(wpa_s, i);
} else if (os_strncmp(cmd, "NEXT-", 5) == 0) {
i = atoi(cmd + 5);
bss = wpa_bss_get_id(wpa_s, i);
if (bss) {
struct dl_list *next = bss->list_id.next;
if (next == &wpa_s->bss_id)
bss = NULL;
else
bss = dl_list_entry(next, struct wpa_bss,
list_id);
}
} else if (hwaddr_aton(cmd, bssid) == 0)
bss = wpa_bss_get_bssid(wpa_s, bssid);
else {
struct wpa_bss *tmp;
i = atoi(cmd);
bss = NULL;
dl_list_for_each(tmp, &wpa_s->bss_id, struct wpa_bss, list_id)
{
if (i-- == 0) {
bss = tmp;
break;
}
}
}
if (bss == NULL)
return 0;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos,
"id=%u\n"
"bssid=" MACSTR "\n"
"freq=%d\n"
"beacon_int=%d\n"
"capabilities=0x%04x\n"
"qual=%d\n"
"noise=%d\n"
"level=%d\n"
"tsf=%016llu\n"
"ie=",
bss->id,
MAC2STR(bss->bssid), bss->freq, bss->beacon_int,
bss->caps, bss->qual, bss->noise, bss->level,
(unsigned long long) bss->tsf);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ie = (const u8 *) (bss + 1);
for (i = 0; i < bss->ie_len; i++) {
ret = os_snprintf(pos, end - pos, "%02x", *ie++);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
ret = os_snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "flags=");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (ie)
pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
ie2 = wpa_bss_get_ie(bss, WLAN_EID_RSN);
if (ie2)
pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
pos = wpa_supplicant_wps_ie_txt(pos, end, bss);
if (!ie && !ie2 && bss->caps & IEEE80211_CAP_PRIVACY) {
ret = os_snprintf(pos, end - pos, "[WEP]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (bss->caps & IEEE80211_CAP_IBSS) {
ret = os_snprintf(pos, end - pos, "[IBSS]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (bss->caps & IEEE80211_CAP_ESS) {
ret = os_snprintf(pos, end - pos, "[ESS]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
ret = os_snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "ssid=%s\n",
wpa_ssid_txt(bss->ssid, bss->ssid_len));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
#ifdef CONFIG_WPS
ie = (const u8 *) (bss + 1);
ret = wpas_wps_scan_result_text(ie, bss->ie_len, pos, end);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
#endif /* CONFIG_WPS */
return pos - buf;
}
static int wpa_supplicant_ctrl_iface_ap_scan(
struct wpa_supplicant *wpa_s, char *cmd)
{
int ap_scan = atoi(cmd);
return wpa_supplicant_set_ap_scan(wpa_s, ap_scan);
}
static void wpa_supplicant_ctrl_iface_drop_sa(struct wpa_supplicant *wpa_s)
{
u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff";
wpa_printf(MSG_DEBUG, "Dropping SA without deauthentication");
/* MLME-DELETEKEYS.request */
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0);
#ifdef CONFIG_IEEE80211W
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 4, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 5, 0, NULL, 0, NULL, 0);
#endif /* CONFIG_IEEE80211W */
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, wpa_s->bssid, 0, 0, NULL, 0, NULL,
0);
/* MLME-SETPROTECTION.request(None) */
wpa_drv_mlme_setprotection(wpa_s, wpa_s->bssid,
MLME_SETPROTECTION_PROTECT_TYPE_NONE,
MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
wpa_sm_drop_sa(wpa_s->wpa);
}
char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
char *buf, size_t *resp_len)
{
char *reply;
const int reply_size = 2048;
int ctrl_rsp = 0;
int reply_len;
if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0 ||
os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface",
(const u8 *) buf, os_strlen(buf));
} else {
wpa_hexdump_ascii(MSG_DEBUG, "RX ctrl_iface",
(const u8 *) buf, os_strlen(buf));
}
reply = os_malloc(reply_size);
if (reply == NULL) {
*resp_len = 1;
return NULL;
}
os_memcpy(reply, "OK\n", 3);
reply_len = 3;
if (os_strcmp(buf, "PING") == 0) {
os_memcpy(reply, "PONG\n", 5);
reply_len = 5;
} else if (os_strcmp(buf, "MIB") == 0) {
reply_len = wpa_sm_get_mib(wpa_s->wpa, reply, reply_size);
if (reply_len >= 0) {
int res;
res = eapol_sm_get_mib(wpa_s->eapol, reply + reply_len,
reply_size - reply_len);
if (res < 0)
reply_len = -1;
else
reply_len += res;
}
} else if (os_strncmp(buf, "STATUS", 6) == 0) {
reply_len = wpa_supplicant_ctrl_iface_status(
wpa_s, buf + 6, reply, reply_size);
} else if (os_strcmp(buf, "PMKSA") == 0) {
reply_len = wpa_sm_pmksa_cache_list(wpa_s->wpa, reply,
reply_size);
} else if (os_strncmp(buf, "SET ", 4) == 0) {
if (wpa_supplicant_ctrl_iface_set(wpa_s, buf + 4))
reply_len = -1;
} else if (os_strcmp(buf, "LOGON") == 0) {
eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
} else if (os_strcmp(buf, "LOGOFF") == 0) {
eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
} else if (os_strcmp(buf, "REASSOCIATE") == 0) {
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
} else if (os_strcmp(buf, "RECONNECT") == 0) {
if (wpa_s->disconnected) {
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
#ifdef IEEE8021X_EAPOL
} else if (os_strncmp(buf, "PREAUTH ", 8) == 0) {
if (wpa_supplicant_ctrl_iface_preauth(wpa_s, buf + 8))
reply_len = -1;
#endif /* IEEE8021X_EAPOL */
#ifdef CONFIG_PEERKEY
} else if (os_strncmp(buf, "STKSTART ", 9) == 0) {
if (wpa_supplicant_ctrl_iface_stkstart(wpa_s, buf + 9))
reply_len = -1;
#endif /* CONFIG_PEERKEY */
#ifdef CONFIG_IEEE80211R
} else if (os_strncmp(buf, "FT_DS ", 6) == 0) {
if (wpa_supplicant_ctrl_iface_ft_ds(wpa_s, buf + 6))
reply_len = -1;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_WPS
} else if (os_strcmp(buf, "WPS_PBC") == 0) {
if (wpa_supplicant_ctrl_iface_wps_pbc(wpa_s, NULL))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_PBC ", 8) == 0) {
if (wpa_supplicant_ctrl_iface_wps_pbc(wpa_s, buf + 8))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
reply_len = wpa_supplicant_ctrl_iface_wps_pin(wpa_s, buf + 8,
reply,
reply_size);
#ifdef CONFIG_WPS_OOB
} else if (os_strncmp(buf, "WPS_OOB ", 8) == 0) {
if (wpa_supplicant_ctrl_iface_wps_oob(wpa_s, buf + 8))
reply_len = -1;
#endif /* CONFIG_WPS_OOB */
} else if (os_strncmp(buf, "WPS_REG ", 8) == 0) {
if (wpa_supplicant_ctrl_iface_wps_reg(wpa_s, buf + 8))
reply_len = -1;
#ifdef CONFIG_WPS_ER
} else if (os_strcmp(buf, "WPS_ER_START") == 0) {
if (wpas_wps_er_start(wpa_s))
reply_len = -1;
} else if (os_strcmp(buf, "WPS_ER_STOP") == 0) {
if (wpas_wps_er_stop(wpa_s))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_ER_PIN ", 11) == 0) {
if (wpa_supplicant_ctrl_iface_wps_er_pin(wpa_s, buf + 11))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_ER_PBC ", 11) == 0) {
if (wpas_wps_er_pbc(wpa_s, buf + 11))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_ER_LEARN ", 13) == 0) {
if (wpa_supplicant_ctrl_iface_wps_er_learn(wpa_s, buf + 13))
reply_len = -1;
#endif /* CONFIG_WPS_ER */
#endif /* CONFIG_WPS */
#ifdef CONFIG_IBSS_RSN
} else if (os_strncmp(buf, "IBSS_RSN ", 9) == 0) {
if (wpa_supplicant_ctrl_iface_ibss_rsn(wpa_s, buf + 9))
reply_len = -1;
#endif /* CONFIG_IBSS_RSN */
} else if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0)
{
if (wpa_supplicant_ctrl_iface_ctrl_rsp(
wpa_s, buf + os_strlen(WPA_CTRL_RSP)))
reply_len = -1;
else
ctrl_rsp = 1;
} else if (os_strcmp(buf, "RECONFIGURE") == 0) {
if (wpa_supplicant_reload_configuration(wpa_s))
reply_len = -1;
} else if (os_strcmp(buf, "TERMINATE") == 0) {
wpa_supplicant_terminate_proc(wpa_s->global);
} else if (os_strncmp(buf, "BSSID ", 6) == 0) {
if (wpa_supplicant_ctrl_iface_bssid(wpa_s, buf + 6))
reply_len = -1;
} else if (os_strcmp(buf, "LIST_NETWORKS") == 0) {
reply_len = wpa_supplicant_ctrl_iface_list_networks(
wpa_s, reply, reply_size);
} else if (os_strcmp(buf, "DISCONNECT") == 0) {
wpa_s->reassociate = 0;
wpa_s->disconnected = 1;
wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
} else if (os_strcmp(buf, "SCAN") == 0) {
wpa_s->scan_req = 2;
wpa_supplicant_req_scan(wpa_s, 0, 0);
} else if (os_strcmp(buf, "SCAN_RESULTS") == 0) {
reply_len = wpa_supplicant_ctrl_iface_scan_results(
wpa_s, reply, reply_size);
} else if (os_strncmp(buf, "SELECT_NETWORK ", 15) == 0) {
if (wpa_supplicant_ctrl_iface_select_network(wpa_s, buf + 15))
reply_len = -1;
} else if (os_strncmp(buf, "ENABLE_NETWORK ", 15) == 0) {
if (wpa_supplicant_ctrl_iface_enable_network(wpa_s, buf + 15))
reply_len = -1;
} else if (os_strncmp(buf, "DISABLE_NETWORK ", 16) == 0) {
if (wpa_supplicant_ctrl_iface_disable_network(wpa_s, buf + 16))
reply_len = -1;
} else if (os_strcmp(buf, "ADD_NETWORK") == 0) {
reply_len = wpa_supplicant_ctrl_iface_add_network(
wpa_s, reply, reply_size);
} else if (os_strncmp(buf, "REMOVE_NETWORK ", 15) == 0) {
if (wpa_supplicant_ctrl_iface_remove_network(wpa_s, buf + 15))
reply_len = -1;
} else if (os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
if (wpa_supplicant_ctrl_iface_set_network(wpa_s, buf + 12))
reply_len = -1;
} else if (os_strncmp(buf, "GET_NETWORK ", 12) == 0) {
reply_len = wpa_supplicant_ctrl_iface_get_network(
wpa_s, buf + 12, reply, reply_size);
#ifndef CONFIG_NO_CONFIG_WRITE
} else if (os_strcmp(buf, "SAVE_CONFIG") == 0) {
if (wpa_supplicant_ctrl_iface_save_config(wpa_s))
reply_len = -1;
#endif /* CONFIG_NO_CONFIG_WRITE */
} else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) {
reply_len = wpa_supplicant_ctrl_iface_get_capability(
wpa_s, buf + 15, reply, reply_size);
} else if (os_strncmp(buf, "AP_SCAN ", 8) == 0) {
if (wpa_supplicant_ctrl_iface_ap_scan(wpa_s, buf + 8))
reply_len = -1;
} else if (os_strcmp(buf, "INTERFACE_LIST") == 0) {
reply_len = wpa_supplicant_global_iface_list(
wpa_s->global, reply, reply_size);
} else if (os_strcmp(buf, "INTERFACES") == 0) {
reply_len = wpa_supplicant_global_iface_interfaces(
wpa_s->global, reply, reply_size);
} else if (os_strncmp(buf, "BSS ", 4) == 0) {
reply_len = wpa_supplicant_ctrl_iface_bss(
wpa_s, buf + 4, reply, reply_size);
#ifdef CONFIG_AP
} else if (os_strcmp(buf, "STA-FIRST") == 0) {
reply_len = ap_ctrl_iface_sta_first(wpa_s, reply, reply_size);
} else if (os_strncmp(buf, "STA ", 4) == 0) {
reply_len = ap_ctrl_iface_sta(wpa_s, buf + 4, reply,
reply_size);
} else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
reply_len = ap_ctrl_iface_sta_next(wpa_s, buf + 9, reply,
reply_size);
#endif /* CONFIG_AP */
} else if (os_strcmp(buf, "SUSPEND") == 0) {
wpas_notify_suspend(wpa_s->global);
} else if (os_strcmp(buf, "RESUME") == 0) {
wpas_notify_resume(wpa_s->global);
} else if (os_strcmp(buf, "DROP_SA") == 0) {
wpa_supplicant_ctrl_iface_drop_sa(wpa_s);
} else {
os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
reply_len = 16;
}
if (reply_len < 0) {
os_memcpy(reply, "FAIL\n", 5);
reply_len = 5;
}
if (ctrl_rsp)
eapol_sm_notify_ctrl_response(wpa_s->eapol);
*resp_len = reply_len;
return reply;
}
static int wpa_supplicant_global_iface_add(struct wpa_global *global,
char *cmd)
{
struct wpa_interface iface;
char *pos;
/*
* <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param>
* TAB<bridge_ifname>
*/
wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd);
os_memset(&iface, 0, sizeof(iface));
do {
iface.ifname = pos = cmd;
pos = os_strchr(pos, '\t');
if (pos)
*pos++ = '\0';
if (iface.ifname[0] == '\0')
return -1;
if (pos == NULL)
break;
iface.confname = pos;
pos = os_strchr(pos, '\t');
if (pos)
*pos++ = '\0';
if (iface.confname[0] == '\0')
iface.confname = NULL;
if (pos == NULL)
break;
iface.driver = pos;
pos = os_strchr(pos, '\t');
if (pos)
*pos++ = '\0';
if (iface.driver[0] == '\0')
iface.driver = NULL;
if (pos == NULL)
break;
iface.ctrl_interface = pos;
pos = os_strchr(pos, '\t');
if (pos)
*pos++ = '\0';
if (iface.ctrl_interface[0] == '\0')
iface.ctrl_interface = NULL;
if (pos == NULL)
break;
iface.driver_param = pos;
pos = os_strchr(pos, '\t');
if (pos)
*pos++ = '\0';
if (iface.driver_param[0] == '\0')
iface.driver_param = NULL;
if (pos == NULL)
break;
iface.bridge_ifname = pos;
pos = os_strchr(pos, '\t');
if (pos)
*pos++ = '\0';
if (iface.bridge_ifname[0] == '\0')
iface.bridge_ifname = NULL;
if (pos == NULL)
break;
} while (0);
if (wpa_supplicant_get_iface(global, iface.ifname))
return -1;
return wpa_supplicant_add_iface(global, &iface) ? 0 : -1;
}
static int wpa_supplicant_global_iface_remove(struct wpa_global *global,
char *cmd)
{
struct wpa_supplicant *wpa_s;
wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd);
wpa_s = wpa_supplicant_get_iface(global, cmd);
if (wpa_s == NULL)
return -1;
return wpa_supplicant_remove_iface(global, wpa_s);
}
static void wpa_free_iface_info(struct wpa_interface_info *iface)
{
struct wpa_interface_info *prev;
while (iface) {
prev = iface;
iface = iface->next;
os_free(prev->ifname);
os_free(prev->desc);
os_free(prev);
}
}
static int wpa_supplicant_global_iface_list(struct wpa_global *global,
char *buf, int len)
{
int i, res;
struct wpa_interface_info *iface = NULL, *last = NULL, *tmp;
char *pos, *end;
for (i = 0; wpa_drivers[i]; i++) {
struct wpa_driver_ops *drv = wpa_drivers[i];
if (drv->get_interfaces == NULL)
continue;
tmp = drv->get_interfaces(global->drv_priv);
if (tmp == NULL)
continue;
if (last == NULL)
iface = last = tmp;
else
last->next = tmp;
while (last->next)
last = last->next;
}
pos = buf;
end = buf + len;
for (tmp = iface; tmp; tmp = tmp->next) {
res = os_snprintf(pos, end - pos, "%s\t%s\t%s\n",
tmp->drv_name, tmp->ifname,
tmp->desc ? tmp->desc : "");
if (res < 0 || res >= end - pos) {
*pos = '\0';
break;
}
pos += res;
}
wpa_free_iface_info(iface);
return pos - buf;
}
static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
char *buf, int len)
{
int res;
char *pos, *end;
struct wpa_supplicant *wpa_s;
wpa_s = global->ifaces;
pos = buf;
end = buf + len;
while (wpa_s) {
res = os_snprintf(pos, end - pos, "%s\n", wpa_s->ifname);
if (res < 0 || res >= end - pos) {
*pos = '\0';
break;
}
pos += res;
wpa_s = wpa_s->next;
}
return pos - buf;
}
char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
char *buf, size_t *resp_len)
{
char *reply;
const int reply_size = 2048;
int reply_len;
wpa_hexdump_ascii(MSG_DEBUG, "RX global ctrl_iface",
(const u8 *) buf, os_strlen(buf));
reply = os_malloc(reply_size);
if (reply == NULL) {
*resp_len = 1;
return NULL;
}
os_memcpy(reply, "OK\n", 3);
reply_len = 3;
if (os_strcmp(buf, "PING") == 0) {
os_memcpy(reply, "PONG\n", 5);
reply_len = 5;
} else if (os_strncmp(buf, "INTERFACE_ADD ", 14) == 0) {
if (wpa_supplicant_global_iface_add(global, buf + 14))
reply_len = -1;
} else if (os_strncmp(buf, "INTERFACE_REMOVE ", 17) == 0) {
if (wpa_supplicant_global_iface_remove(global, buf + 17))
reply_len = -1;
} else if (os_strcmp(buf, "INTERFACE_LIST") == 0) {
reply_len = wpa_supplicant_global_iface_list(
global, reply, reply_size);
} else if (os_strcmp(buf, "INTERFACES") == 0) {
reply_len = wpa_supplicant_global_iface_interfaces(
global, reply, reply_size);
} else if (os_strcmp(buf, "TERMINATE") == 0) {
wpa_supplicant_terminate_proc(global);
} else if (os_strcmp(buf, "SUSPEND") == 0) {
wpas_notify_suspend(global);
} else if (os_strcmp(buf, "RESUME") == 0) {
wpas_notify_resume(global);
} else {
os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
reply_len = 16;
}
if (reply_len < 0) {
os_memcpy(reply, "FAIL\n", 5);
reply_len = 5;
}
*resp_len = reply_len;
return reply;
}
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