hostap/hostapd/ctrl_iface.c
Jouni Malinen 2977f5193a GAS: Remove unnecessarily duplicate gas_frag_limit configuration
The actual BSS configuration parameter can be updated with the SET
control interface command, so there is no need to maintain a separate
per-BSS parameter and a separate control interface handling for this.

Signed-off-by: Jouni Malinen <j@w1.fi>
2016-12-30 00:23:10 +02:00

3862 lines
90 KiB
C

/*
* hostapd / UNIX domain socket -based control interface
* Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#ifndef CONFIG_NATIVE_WINDOWS
#ifdef CONFIG_TESTING_OPTIONS
#include <net/ethernet.h>
#include <netinet/ip.h>
#endif /* CONFIG_TESTING_OPTIONS */
#include <sys/un.h>
#include <sys/stat.h>
#include <stddef.h>
#ifdef CONFIG_CTRL_IFACE_UDP
#include <netdb.h>
#endif /* CONFIG_CTRL_IFACE_UDP */
#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/module_tests.h"
#include "common/version.h"
#include "common/ieee802_11_defs.h"
#include "common/ctrl_iface_common.h"
#include "crypto/tls.h"
#include "drivers/driver.h"
#include "eapol_auth/eapol_auth_sm.h"
#include "radius/radius_client.h"
#include "radius/radius_server.h"
#include "l2_packet/l2_packet.h"
#include "ap/hostapd.h"
#include "ap/ap_config.h"
#include "ap/ieee802_1x.h"
#include "ap/wpa_auth.h"
#include "ap/ieee802_11.h"
#include "ap/sta_info.h"
#include "ap/wps_hostapd.h"
#include "ap/ctrl_iface_ap.h"
#include "ap/ap_drv_ops.h"
#include "ap/hs20.h"
#include "ap/wnm_ap.h"
#include "ap/wpa_auth.h"
#include "ap/beacon.h"
#include "ap/neighbor_db.h"
#include "ap/rrm.h"
#include "wps/wps_defs.h"
#include "wps/wps.h"
#include "fst/fst_ctrl_iface.h"
#include "config_file.h"
#include "ctrl_iface.h"
#define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256
#ifdef CONFIG_CTRL_IFACE_UDP
#define COOKIE_LEN 8
static unsigned char cookie[COOKIE_LEN];
static unsigned char gcookie[COOKIE_LEN];
#define HOSTAPD_CTRL_IFACE_PORT 8877
#define HOSTAPD_CTRL_IFACE_PORT_LIMIT 50
#define HOSTAPD_GLOBAL_CTRL_IFACE_PORT 8878
#define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT 50
#endif /* CONFIG_CTRL_IFACE_UDP */
static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
enum wpa_msg_type type,
const char *buf, size_t len);
static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd,
struct sockaddr_storage *from,
socklen_t fromlen)
{
return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen);
}
static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd,
struct sockaddr_storage *from,
socklen_t fromlen)
{
return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen);
}
static int hostapd_ctrl_iface_level(struct hostapd_data *hapd,
struct sockaddr_storage *from,
socklen_t fromlen,
char *level)
{
return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level);
}
static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
const char *txtaddr)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr);
if (hwaddr_aton(txtaddr, addr))
return -1;
sta = ap_get_sta(hapd, addr);
if (sta)
return 0;
wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface "
"notification", MAC2STR(addr));
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
hostapd_new_assoc_sta(hapd, sta, 0);
return 0;
}
#ifdef CONFIG_IEEE80211W
#ifdef NEED_AP_MLME
static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd,
const char *txtaddr)
{
u8 addr[ETH_ALEN];
u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr);
if (hwaddr_aton(txtaddr, addr) ||
os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0)
return -1;
ieee802_11_send_sa_query_req(hapd, addr, trans_id);
return 0;
}
#endif /* NEED_AP_MLME */
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_WPS
static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
{
char *pin = os_strchr(txt, ' ');
char *timeout_txt;
int timeout;
u8 addr_buf[ETH_ALEN], *addr = NULL;
char *pos;
if (pin == NULL)
return -1;
*pin++ = '\0';
timeout_txt = os_strchr(pin, ' ');
if (timeout_txt) {
*timeout_txt++ = '\0';
timeout = atoi(timeout_txt);
pos = os_strchr(timeout_txt, ' ');
if (pos) {
*pos++ = '\0';
if (hwaddr_aton(pos, addr_buf) == 0)
addr = addr_buf;
}
} else
timeout = 0;
return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout);
}
static int hostapd_ctrl_iface_wps_check_pin(
struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen)
{
char pin[9];
size_t len;
char *pos;
int ret;
wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN",
(u8 *) cmd, os_strlen(cmd));
for (pos = cmd, len = 0; *pos != '\0'; pos++) {
if (*pos < '0' || *pos > '9')
continue;
pin[len++] = *pos;
if (len == 9) {
wpa_printf(MSG_DEBUG, "WPS: Too long PIN");
return -1;
}
}
if (len != 4 && len != 8) {
wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len);
return -1;
}
pin[len] = '\0';
if (len == 8) {
unsigned int pin_val;
pin_val = atoi(pin);
if (!wps_pin_valid(pin_val)) {
wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
if (os_snprintf_error(buflen, ret))
return -1;
return ret;
}
}
ret = os_snprintf(buf, buflen, "%s", pin);
if (os_snprintf_error(buflen, ret))
return -1;
return ret;
}
#ifdef CONFIG_WPS_NFC
static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd,
char *pos)
{
size_t len;
struct wpabuf *buf;
int ret;
len = os_strlen(pos);
if (len & 0x01)
return -1;
len /= 2;
buf = wpabuf_alloc(len);
if (buf == NULL)
return -1;
if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) {
wpabuf_free(buf);
return -1;
}
ret = hostapd_wps_nfc_tag_read(hapd, buf);
wpabuf_free(buf);
return ret;
}
static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd,
char *cmd, char *reply,
size_t max_len)
{
int ndef;
struct wpabuf *buf;
int res;
if (os_strcmp(cmd, "WPS") == 0)
ndef = 0;
else if (os_strcmp(cmd, "NDEF") == 0)
ndef = 1;
else
return -1;
buf = hostapd_wps_nfc_config_token(hapd, ndef);
if (buf == NULL)
return -1;
res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
wpabuf_len(buf));
reply[res++] = '\n';
reply[res] = '\0';
wpabuf_free(buf);
return res;
}
static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd,
char *reply, size_t max_len,
int ndef)
{
struct wpabuf *buf;
int res;
buf = hostapd_wps_nfc_token_gen(hapd, ndef);
if (buf == NULL)
return -1;
res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
wpabuf_len(buf));
reply[res++] = '\n';
reply[res] = '\0';
wpabuf_free(buf);
return res;
}
static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd,
char *cmd, char *reply,
size_t max_len)
{
if (os_strcmp(cmd, "WPS") == 0)
return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
max_len, 0);
if (os_strcmp(cmd, "NDEF") == 0)
return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
max_len, 1);
if (os_strcmp(cmd, "enable") == 0)
return hostapd_wps_nfc_token_enable(hapd);
if (os_strcmp(cmd, "disable") == 0) {
hostapd_wps_nfc_token_disable(hapd);
return 0;
}
return -1;
}
static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
char *cmd, char *reply,
size_t max_len)
{
struct wpabuf *buf;
int res;
char *pos;
int ndef;
pos = os_strchr(cmd, ' ');
if (pos == NULL)
return -1;
*pos++ = '\0';
if (os_strcmp(cmd, "WPS") == 0)
ndef = 0;
else if (os_strcmp(cmd, "NDEF") == 0)
ndef = 1;
else
return -1;
if (os_strcmp(pos, "WPS-CR") == 0)
buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
else
buf = NULL;
if (buf == NULL)
return -1;
res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
wpabuf_len(buf));
reply[res++] = '\n';
reply[res] = '\0';
wpabuf_free(buf);
return res;
}
static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
char *cmd)
{
size_t len;
struct wpabuf *req, *sel;
int ret;
char *pos, *role, *type, *pos2;
role = cmd;
pos = os_strchr(role, ' ');
if (pos == NULL)
return -1;
*pos++ = '\0';
type = pos;
pos = os_strchr(type, ' ');
if (pos == NULL)
return -1;
*pos++ = '\0';
pos2 = os_strchr(pos, ' ');
if (pos2 == NULL)
return -1;
*pos2++ = '\0';
len = os_strlen(pos);
if (len & 0x01)
return -1;
len /= 2;
req = wpabuf_alloc(len);
if (req == NULL)
return -1;
if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
wpabuf_free(req);
return -1;
}
len = os_strlen(pos2);
if (len & 0x01) {
wpabuf_free(req);
return -1;
}
len /= 2;
sel = wpabuf_alloc(len);
if (sel == NULL) {
wpabuf_free(req);
return -1;
}
if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
wpabuf_free(req);
wpabuf_free(sel);
return -1;
}
if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) {
ret = hostapd_wps_nfc_report_handover(hapd, req, sel);
} else {
wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
"reported: role=%s type=%s", role, type);
ret = -1;
}
wpabuf_free(req);
wpabuf_free(sel);
return ret;
}
#endif /* CONFIG_WPS_NFC */
static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
char *buf, size_t buflen)
{
int timeout = 300;
char *pos;
const char *pin_txt;
pos = os_strchr(txt, ' ');
if (pos)
*pos++ = '\0';
if (os_strcmp(txt, "disable") == 0) {
hostapd_wps_ap_pin_disable(hapd);
return os_snprintf(buf, buflen, "OK\n");
}
if (os_strcmp(txt, "random") == 0) {
if (pos)
timeout = atoi(pos);
pin_txt = hostapd_wps_ap_pin_random(hapd, timeout);
if (pin_txt == NULL)
return -1;
return os_snprintf(buf, buflen, "%s", pin_txt);
}
if (os_strcmp(txt, "get") == 0) {
pin_txt = hostapd_wps_ap_pin_get(hapd);
if (pin_txt == NULL)
return -1;
return os_snprintf(buf, buflen, "%s", pin_txt);
}
if (os_strcmp(txt, "set") == 0) {
char *pin;
if (pos == NULL)
return -1;
pin = pos;
pos = os_strchr(pos, ' ');
if (pos) {
*pos++ = '\0';
timeout = atoi(pos);
}
if (os_strlen(pin) > buflen)
return -1;
if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0)
return -1;
return os_snprintf(buf, buflen, "%s", pin);
}
return -1;
}
static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt)
{
char *pos;
char *ssid, *auth, *encr = NULL, *key = NULL;
ssid = txt;
pos = os_strchr(txt, ' ');
if (!pos)
return -1;
*pos++ = '\0';
auth = pos;
pos = os_strchr(pos, ' ');
if (pos) {
*pos++ = '\0';
encr = pos;
pos = os_strchr(pos, ' ');
if (pos) {
*pos++ = '\0';
key = pos;
}
}
return hostapd_wps_config_ap(hapd, ssid, auth, encr, key);
}
static const char * pbc_status_str(enum pbc_status status)
{
switch (status) {
case WPS_PBC_STATUS_DISABLE:
return "Disabled";
case WPS_PBC_STATUS_ACTIVE:
return "Active";
case WPS_PBC_STATUS_TIMEOUT:
return "Timed-out";
case WPS_PBC_STATUS_OVERLAP:
return "Overlap";
default:
return "Unknown";
}
}
static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
char *buf, size_t buflen)
{
int ret;
char *pos, *end;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
pbc_status_str(hapd->wps_stats.pbc_status));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n",
(hapd->wps_stats.status == WPS_STATUS_SUCCESS ?
"Success":
(hapd->wps_stats.status == WPS_STATUS_FAILURE ?
"Failed" : "None")));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
/* If status == Failure - Add possible Reasons */
if(hapd->wps_stats.status == WPS_STATUS_FAILURE &&
hapd->wps_stats.failure_reason > 0) {
ret = os_snprintf(pos, end - pos,
"Failure Reason: %s\n",
wps_ei_str(hapd->wps_stats.failure_reason));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->wps_stats.status) {
ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
MAC2STR(hapd->wps_stats.peer_addr));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
return pos - buf;
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_HS20
static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
const char *url;
if (hwaddr_aton(cmd, addr))
return -1;
url = cmd + 17;
if (*url == '\0') {
url = NULL;
} else {
if (*url != ' ')
return -1;
url++;
if (*url == '\0')
url = NULL;
}
return hs20_send_wnm_notification(hapd, addr, 1, url);
}
static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
int code, reauth_delay, ret;
const char *pos;
size_t url_len;
struct wpabuf *req;
/* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */
if (hwaddr_aton(cmd, addr))
return -1;
pos = os_strchr(cmd, ' ');
if (pos == NULL)
return -1;
pos++;
code = atoi(pos);
pos = os_strchr(pos, ' ');
if (pos == NULL)
return -1;
pos++;
reauth_delay = atoi(pos);
url_len = 0;
pos = os_strchr(pos, ' ');
if (pos) {
pos++;
url_len = os_strlen(pos);
}
req = wpabuf_alloc(4 + url_len);
if (req == NULL)
return -1;
wpabuf_put_u8(req, code);
wpabuf_put_le16(req, reauth_delay);
wpabuf_put_u8(req, url_len);
if (pos)
wpabuf_put_data(req, pos, url_len);
wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR
" to indicate imminent deauthentication (code=%d "
"reauth_delay=%d)", MAC2STR(addr), code, reauth_delay);
ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req);
wpabuf_free(req);
return ret;
}
#endif /* CONFIG_HS20 */
#ifdef CONFIG_INTERWORKING
static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd,
const char *cmd)
{
u8 qos_map_set[16 + 2 * 21], count = 0;
const char *pos = cmd;
int val, ret;
for (;;) {
if (count == sizeof(qos_map_set)) {
wpa_printf(MSG_ERROR, "Too many qos_map_set parameters");
return -1;
}
val = atoi(pos);
if (val < 0 || val > 255) {
wpa_printf(MSG_INFO, "Invalid QoS Map Set");
return -1;
}
qos_map_set[count++] = val;
pos = os_strchr(pos, ',');
if (!pos)
break;
pos++;
}
if (count < 16 || count & 1) {
wpa_printf(MSG_INFO, "Invalid QoS Map Set");
return -1;
}
ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count);
if (ret) {
wpa_printf(MSG_INFO, "Failed to set QoS Map Set");
return -1;
}
os_memcpy(hapd->conf->qos_map_set, qos_map_set, count);
hapd->conf->qos_map_set_len = count;
return 0;
}
static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
struct wpabuf *buf;
u8 *qos_map_set = hapd->conf->qos_map_set;
u8 qos_map_set_len = hapd->conf->qos_map_set_len;
int ret;
if (!qos_map_set_len) {
wpa_printf(MSG_INFO, "QoS Map Set is not set");
return -1;
}
if (hwaddr_aton(cmd, addr))
return -1;
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "Station " MACSTR " not found "
"for QoS Map Configuration message",
MAC2STR(addr));
return -1;
}
if (!sta->qos_map_enabled) {
wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate "
"support for QoS Map", MAC2STR(addr));
return -1;
}
buf = wpabuf_alloc(2 + 2 + qos_map_set_len);
if (buf == NULL)
return -1;
wpabuf_put_u8(buf, WLAN_ACTION_QOS);
wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG);
/* QoS Map Set Element */
wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET);
wpabuf_put_u8(buf, qos_map_set_len);
wpabuf_put_data(buf, qos_map_set, qos_map_set_len);
ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
wpabuf_head(buf), wpabuf_len(buf));
wpabuf_free(buf);
return ret;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_WNM
static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
int disassoc_timer;
struct sta_info *sta;
if (hwaddr_aton(cmd, addr))
return -1;
if (cmd[17] != ' ')
return -1;
disassoc_timer = atoi(cmd + 17);
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "Station " MACSTR
" not found for disassociation imminent message",
MAC2STR(addr));
return -1;
}
return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer);
}
static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
const char *url, *timerstr;
int disassoc_timer;
struct sta_info *sta;
if (hwaddr_aton(cmd, addr))
return -1;
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "Station " MACSTR
" not found for ESS disassociation imminent message",
MAC2STR(addr));
return -1;
}
timerstr = cmd + 17;
if (*timerstr != ' ')
return -1;
timerstr++;
disassoc_timer = atoi(timerstr);
if (disassoc_timer < 0 || disassoc_timer > 65535)
return -1;
url = os_strchr(timerstr, ' ');
if (url == NULL)
return -1;
url++;
return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
}
static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
const char *pos, *end;
int disassoc_timer = 0;
struct sta_info *sta;
u8 req_mode = 0, valid_int = 0x01;
u8 bss_term_dur[12];
char *url = NULL;
int ret;
u8 nei_rep[1000];
u8 *nei_pos = nei_rep;
u8 mbo[10];
size_t mbo_len = 0;
if (hwaddr_aton(cmd, addr)) {
wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
return -1;
}
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "Station " MACSTR
" not found for BSS TM Request message",
MAC2STR(addr));
return -1;
}
pos = os_strstr(cmd, " disassoc_timer=");
if (pos) {
pos += 16;
disassoc_timer = atoi(pos);
if (disassoc_timer < 0 || disassoc_timer > 65535) {
wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
return -1;
}
}
pos = os_strstr(cmd, " valid_int=");
if (pos) {
pos += 11;
valid_int = atoi(pos);
}
pos = os_strstr(cmd, " bss_term=");
if (pos) {
pos += 10;
req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
/* TODO: TSF configurable/learnable */
bss_term_dur[0] = 4; /* Subelement ID */
bss_term_dur[1] = 10; /* Length */
os_memset(bss_term_dur, 2, 8);
end = os_strchr(pos, ',');
if (end == NULL) {
wpa_printf(MSG_DEBUG, "Invalid bss_term data");
return -1;
}
end++;
WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
}
/*
* BSS Transition Candidate List Entries - Neighbor Report elements
* neighbor=<BSSID>,<BSSID Information>,<Operating Class>,
* <Channel Number>,<PHY Type>[,<hexdump of Optional Subelements>]
*/
pos = cmd;
while (pos) {
u8 *nei_start;
long int val;
char *endptr, *tmp;
pos = os_strstr(pos, " neighbor=");
if (!pos)
break;
if (nei_pos + 15 > nei_rep + sizeof(nei_rep)) {
wpa_printf(MSG_DEBUG,
"Not enough room for additional neighbor");
return -1;
}
pos += 10;
nei_start = nei_pos;
*nei_pos++ = WLAN_EID_NEIGHBOR_REPORT;
nei_pos++; /* length to be filled in */
if (hwaddr_aton(pos, nei_pos)) {
wpa_printf(MSG_DEBUG, "Invalid BSSID");
return -1;
}
nei_pos += ETH_ALEN;
pos += 17;
if (*pos != ',') {
wpa_printf(MSG_DEBUG, "Missing BSSID Information");
return -1;
}
pos++;
val = strtol(pos, &endptr, 0);
WPA_PUT_LE32(nei_pos, val);
nei_pos += 4;
if (*endptr != ',') {
wpa_printf(MSG_DEBUG, "Missing Operating Class");
return -1;
}
pos = endptr + 1;
*nei_pos++ = atoi(pos); /* Operating Class */
pos = os_strchr(pos, ',');
if (pos == NULL) {
wpa_printf(MSG_DEBUG, "Missing Channel Number");
return -1;
}
pos++;
*nei_pos++ = atoi(pos); /* Channel Number */
pos = os_strchr(pos, ',');
if (pos == NULL) {
wpa_printf(MSG_DEBUG, "Missing PHY Type");
return -1;
}
pos++;
*nei_pos++ = atoi(pos); /* PHY Type */
end = os_strchr(pos, ' ');
tmp = os_strchr(pos, ',');
if (tmp && (!end || tmp < end)) {
/* Optional Subelements (hexdump) */
size_t len;
pos = tmp + 1;
end = os_strchr(pos, ' ');
if (end)
len = end - pos;
else
len = os_strlen(pos);
if (nei_pos + len / 2 > nei_rep + sizeof(nei_rep)) {
wpa_printf(MSG_DEBUG,
"Not enough room for neighbor subelements");
return -1;
}
if (len & 0x01 ||
hexstr2bin(pos, nei_pos, len / 2) < 0) {
wpa_printf(MSG_DEBUG,
"Invalid neighbor subelement info");
return -1;
}
nei_pos += len / 2;
pos = end;
}
nei_start[1] = nei_pos - nei_start - 2;
}
pos = os_strstr(cmd, " url=");
if (pos) {
size_t len;
pos += 5;
end = os_strchr(pos, ' ');
if (end)
len = end - pos;
else
len = os_strlen(pos);
url = os_malloc(len + 1);
if (url == NULL)
return -1;
os_memcpy(url, pos, len);
url[len] = '\0';
req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
}
if (os_strstr(cmd, " pref=1"))
req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
if (os_strstr(cmd, " abridged=1"))
req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
if (os_strstr(cmd, " disassoc_imminent=1"))
req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;
#ifdef CONFIG_MBO
pos = os_strstr(cmd, "mbo=");
if (pos) {
unsigned int mbo_reason, cell_pref, reassoc_delay;
u8 *mbo_pos = mbo;
ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason,
&reassoc_delay, &cell_pref);
if (ret != 3) {
wpa_printf(MSG_DEBUG,
"MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>");
ret = -1;
goto fail;
}
if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) {
wpa_printf(MSG_DEBUG,
"Invalid MBO transition reason code %u",
mbo_reason);
ret = -1;
goto fail;
}
/* Valid values for Cellular preference are: 0, 1, 255 */
if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) {
wpa_printf(MSG_DEBUG,
"Invalid MBO cellular capability %u",
cell_pref);
ret = -1;
goto fail;
}
if (reassoc_delay > 65535 ||
(reassoc_delay &&
!(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) {
wpa_printf(MSG_DEBUG,
"MBO: Assoc retry delay is only valid in disassoc imminent mode");
ret = -1;
goto fail;
}
*mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON;
*mbo_pos++ = 1;
*mbo_pos++ = mbo_reason;
*mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF;
*mbo_pos++ = 1;
*mbo_pos++ = cell_pref;
if (reassoc_delay) {
*mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY;
*mbo_pos++ = 2;
WPA_PUT_LE16(mbo_pos, reassoc_delay);
mbo_pos += 2;
}
mbo_len = mbo_pos - mbo;
}
#endif /* CONFIG_MBO */
ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
valid_int, bss_term_dur, url,
nei_pos > nei_rep ? nei_rep : NULL,
nei_pos - nei_rep, mbo_len ? mbo : NULL,
mbo_len);
fail:
os_free(url);
return ret;
}
#endif /* CONFIG_WNM */
static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd,
char *buf, size_t buflen)
{
int ret = 0;
char *pos, *end;
pos = buf;
end = buf + buflen;
WPA_ASSERT(hapd->conf->wpa_key_mgmt);
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
ret = os_snprintf(pos, end - pos, "WPA-PSK ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
ret = os_snprintf(pos, end - pos, "WPA-EAP ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#ifdef CONFIG_IEEE80211R_AP
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
ret = os_snprintf(pos, end - pos, "FT-PSK ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
ret = os_snprintf(pos, end - pos, "FT-EAP ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#ifdef CONFIG_SAE
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
ret = os_snprintf(pos, end - pos, "FT-SAE ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#endif /* CONFIG_SAE */
#ifdef CONFIG_FILS
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) {
ret = os_snprintf(pos, end - pos, "FT-FILS-SHA256 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) {
ret = os_snprintf(pos, end - pos, "FT-FILS-SHA384 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#endif /* CONFIG_FILS */
#endif /* CONFIG_IEEE80211R_AP */
#ifdef CONFIG_IEEE80211W
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_SAE
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
ret = os_snprintf(pos, end - pos, "SAE ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#endif /* CONFIG_SAE */
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa_key_mgmt &
WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
ret = os_snprintf(pos, end - pos,
"WPA-EAP-SUITE-B-192 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#ifdef CONFIG_FILS
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA256) {
ret = os_snprintf(pos, end - pos, "FILS-SHA256 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA384) {
ret = os_snprintf(pos, end - pos, "FILS-SHA384 ");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#endif /* CONFIG_FILS */
if (pos > buf && *(pos - 1) == ' ') {
*(pos - 1) = '\0';
pos--;
}
return pos - buf;
}
static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
char *buf, size_t buflen)
{
int ret;
char *pos, *end;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n"
"ssid=%s\n",
MAC2STR(hapd->own_addr),
wpa_ssid_txt(hapd->conf->ssid.ssid,
hapd->conf->ssid.ssid_len));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
#ifdef CONFIG_WPS
ret = os_snprintf(pos, end - pos, "wps_state=%s\n",
hapd->conf->wps_state == 0 ? "disabled" :
(hapd->conf->wps_state == 1 ? "not configured" :
"configured"));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
if (hapd->conf->wps_state && hapd->conf->wpa &&
hapd->conf->ssid.wpa_passphrase) {
ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
hapd->conf->ssid.wpa_passphrase);
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wps_state && hapd->conf->wpa &&
hapd->conf->ssid.wpa_psk &&
hapd->conf->ssid.wpa_psk->group) {
char hex[PMK_LEN * 2 + 1];
wpa_snprintf_hex(hex, sizeof(hex),
hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
#endif /* CONFIG_WPS */
if (hapd->conf->wpa) {
ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa);
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
ret = os_snprintf(pos, end - pos, "key_mgmt=");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos);
ret = os_snprintf(pos, end - pos, "\n");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if (hapd->conf->wpa) {
ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
wpa_cipher_txt(hapd->conf->wpa_group));
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise,
" ");
if (ret < 0)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "\n");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise,
" ");
if (ret < 0)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "\n");
if (os_snprintf_error(end - pos, ret))
return pos - buf;
pos += ret;
}
return pos - buf;
}
static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, 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 (0) {
#ifdef CONFIG_WPS_TESTING
} else if (os_strcasecmp(cmd, "wps_version_number") == 0) {
long int val;
val = strtol(value, NULL, 0);
if (val < 0 || val > 0xff) {
ret = -1;
wpa_printf(MSG_DEBUG, "WPS: Invalid "
"wps_version_number %ld", val);
} else {
wps_version_number = val;
wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS "
"version %u.%u",
(wps_version_number & 0xf0) >> 4,
wps_version_number & 0x0f);
hostapd_wps_update_ie(hapd);
}
} else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) {
wps_testing_dummy_cred = atoi(value);
wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d",
wps_testing_dummy_cred);
} else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) {
wps_corrupt_pkhash = atoi(value);
wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d",
wps_corrupt_pkhash);
#endif /* CONFIG_WPS_TESTING */
#ifdef CONFIG_TESTING_OPTIONS
} else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
hapd->ext_mgmt_frame_handling = atoi(value);
} else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
hapd->ext_eapol_frame_io = atoi(value);
#endif /* CONFIG_TESTING_OPTIONS */
#ifdef CONFIG_MBO
} else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) {
int val;
if (!hapd->conf->mbo_enabled)
return -1;
val = atoi(value);
if (val < 0 || val > 1)
return -1;
hapd->mbo_assoc_disallow = val;
ieee802_11_update_beacons(hapd->iface);
/*
* TODO: Need to configure drivers that do AP MLME offload with
* disallowing station logic.
*/
#endif /* CONFIG_MBO */
} else {
struct sta_info *sta;
struct vlan_description vlan_id;
ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
if (ret)
return ret;
if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
for (sta = hapd->sta_list; sta; sta = sta->next) {
if (hostapd_maclist_found(
hapd->conf->deny_mac,
hapd->conf->num_deny_mac, sta->addr,
&vlan_id) &&
(!vlan_id.notempty ||
!vlan_compare(&vlan_id, sta->vlan_desc)))
ap_sta_disconnect(
hapd, sta, sta->addr,
WLAN_REASON_UNSPECIFIED);
}
} else if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED &&
os_strcasecmp(cmd, "accept_mac_file") == 0) {
for (sta = hapd->sta_list; sta; sta = sta->next) {
if (!hostapd_maclist_found(
hapd->conf->accept_mac,
hapd->conf->num_accept_mac,
sta->addr, &vlan_id) ||
(vlan_id.notempty &&
vlan_compare(&vlan_id, sta->vlan_desc)))
ap_sta_disconnect(
hapd, sta, sta->addr,
WLAN_REASON_UNSPECIFIED);
}
}
}
return ret;
}
static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
char *buf, size_t buflen)
{
int res;
wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);
if (os_strcmp(cmd, "version") == 0) {
res = os_snprintf(buf, buflen, "%s", VERSION_STR);
if (os_snprintf_error(buflen, res))
return -1;
return res;
} else if (os_strcmp(cmd, "tls_library") == 0) {
res = tls_get_library_version(buf, buflen);
if (os_snprintf_error(buflen, res))
return -1;
return res;
}
return -1;
}
static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
{
if (hostapd_enable_iface(iface) < 0) {
wpa_printf(MSG_ERROR, "Enabling of interface failed");
return -1;
}
return 0;
}
static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
{
if (hostapd_reload_iface(iface) < 0) {
wpa_printf(MSG_ERROR, "Reloading of interface failed");
return -1;
}
return 0;
}
static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
{
if (hostapd_disable_iface(iface) < 0) {
wpa_printf(MSG_ERROR, "Disabling of interface failed");
return -1;
}
return 0;
}
#ifdef CONFIG_TESTING_OPTIONS
static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
{
union wpa_event_data data;
char *pos, *param;
enum wpa_event_type event;
wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);
os_memset(&data, 0, sizeof(data));
param = os_strchr(cmd, ' ');
if (param == NULL)
return -1;
*param++ = '\0';
if (os_strcmp(cmd, "DETECTED") == 0)
event = EVENT_DFS_RADAR_DETECTED;
else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
event = EVENT_DFS_CAC_FINISHED;
else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
event = EVENT_DFS_CAC_ABORTED;
else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
event = EVENT_DFS_NOP_FINISHED;
else {
wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
cmd);
return -1;
}
pos = os_strstr(param, "freq=");
if (pos)
data.dfs_event.freq = atoi(pos + 5);
pos = os_strstr(param, "ht_enabled=1");
if (pos)
data.dfs_event.ht_enabled = 1;
pos = os_strstr(param, "chan_offset=");
if (pos)
data.dfs_event.chan_offset = atoi(pos + 12);
pos = os_strstr(param, "chan_width=");
if (pos)
data.dfs_event.chan_width = atoi(pos + 11);
pos = os_strstr(param, "cf1=");
if (pos)
data.dfs_event.cf1 = atoi(pos + 4);
pos = os_strstr(param, "cf2=");
if (pos)
data.dfs_event.cf2 = atoi(pos + 4);
wpa_supplicant_event(hapd, event, &data);
return 0;
}
static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
{
size_t len;
u8 *buf;
int res;
wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);
len = os_strlen(cmd);
if (len & 1)
return -1;
len /= 2;
buf = os_malloc(len);
if (buf == NULL)
return -1;
if (hexstr2bin(cmd, buf, len) < 0) {
os_free(buf);
return -1;
}
res = hostapd_drv_send_mlme(hapd, buf, len, 0);
os_free(buf);
return res;
}
static int hostapd_ctrl_iface_mgmt_rx_process(struct hostapd_data *hapd,
char *cmd)
{
char *pos, *param;
size_t len;
u8 *buf;
int freq = 0, datarate = 0, ssi_signal = 0;
union wpa_event_data event;
if (!hapd->ext_mgmt_frame_handling)
return -1;
/* freq=<MHz> datarate=<val> ssi_signal=<val> frame=<frame hexdump> */
wpa_printf(MSG_DEBUG, "External MGMT RX process: %s", cmd);
pos = cmd;
param = os_strstr(pos, "freq=");
if (param) {
param += 5;
freq = atoi(param);
}
param = os_strstr(pos, " datarate=");
if (param) {
param += 10;
datarate = atoi(param);
}
param = os_strstr(pos, " ssi_signal=");
if (param) {
param += 12;
ssi_signal = atoi(param);
}
param = os_strstr(pos, " frame=");
if (param == NULL)
return -1;
param += 7;
len = os_strlen(param);
if (len & 1)
return -1;
len /= 2;
buf = os_malloc(len);
if (buf == NULL)
return -1;
if (hexstr2bin(param, buf, len) < 0) {
os_free(buf);
return -1;
}
os_memset(&event, 0, sizeof(event));
event.rx_mgmt.freq = freq;
event.rx_mgmt.frame = buf;
event.rx_mgmt.frame_len = len;
event.rx_mgmt.ssi_signal = ssi_signal;
event.rx_mgmt.datarate = datarate;
hapd->ext_mgmt_frame_handling = 0;
wpa_supplicant_event(hapd, EVENT_RX_MGMT, &event);
hapd->ext_mgmt_frame_handling = 1;
os_free(buf);
return 0;
}
static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
{
char *pos;
u8 src[ETH_ALEN], *buf;
int used;
size_t len;
wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
pos = cmd;
used = hwaddr_aton2(pos, src);
if (used < 0)
return -1;
pos += used;
while (*pos == ' ')
pos++;
len = os_strlen(pos);
if (len & 1)
return -1;
len /= 2;
buf = os_malloc(len);
if (buf == NULL)
return -1;
if (hexstr2bin(pos, buf, len) < 0) {
os_free(buf);
return -1;
}
ieee802_1x_receive(hapd, src, buf, len);
os_free(buf);
return 0;
}
static u16 ipv4_hdr_checksum(const void *buf, size_t len)
{
size_t i;
u32 sum = 0;
const u16 *pos = buf;
for (i = 0; i < len / 2; i++)
sum += *pos++;
while (sum >> 16)
sum = (sum & 0xffff) + (sum >> 16);
return sum ^ 0xffff;
}
#define HWSIM_PACKETLEN 1500
#define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
static void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
size_t len)
{
struct hostapd_data *hapd = ctx;
const struct ether_header *eth;
struct iphdr ip;
const u8 *pos;
unsigned int i;
if (len != HWSIM_PACKETLEN)
return;
eth = (const struct ether_header *) buf;
os_memcpy(&ip, eth + 1, sizeof(ip));
pos = &buf[sizeof(*eth) + sizeof(ip)];
if (ip.ihl != 5 || ip.version != 4 ||
ntohs(ip.tot_len) != HWSIM_IP_LEN)
return;
for (i = 0; i < HWSIM_IP_LEN - sizeof(ip); i++) {
if (*pos != (u8) i)
return;
pos++;
}
wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR,
MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost));
}
static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
char *cmd)
{
int enabled = atoi(cmd);
char *pos;
const char *ifname;
if (!enabled) {
if (hapd->l2_test) {
l2_packet_deinit(hapd->l2_test);
hapd->l2_test = NULL;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
"test data: Disabled");
}
return 0;
}
if (hapd->l2_test)
return 0;
pos = os_strstr(cmd, " ifname=");
if (pos)
ifname = pos + 8;
else
ifname = hapd->conf->iface;
hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
ETHERTYPE_IP, hostapd_data_test_rx,
hapd, 1);
if (hapd->l2_test == NULL)
return -1;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
return 0;
}
static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
{
u8 dst[ETH_ALEN], src[ETH_ALEN];
char *pos;
int used;
long int val;
u8 tos;
u8 buf[2 + HWSIM_PACKETLEN];
struct ether_header *eth;
struct iphdr *ip;
u8 *dpos;
unsigned int i;
if (hapd->l2_test == NULL)
return -1;
/* format: <dst> <src> <tos> */
pos = cmd;
used = hwaddr_aton2(pos, dst);
if (used < 0)
return -1;
pos += used;
while (*pos == ' ')
pos++;
used = hwaddr_aton2(pos, src);
if (used < 0)
return -1;
pos += used;
val = strtol(pos, NULL, 0);
if (val < 0 || val > 0xff)
return -1;
tos = val;
eth = (struct ether_header *) &buf[2];
os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
os_memcpy(eth->ether_shost, src, ETH_ALEN);
eth->ether_type = htons(ETHERTYPE_IP);
ip = (struct iphdr *) (eth + 1);
os_memset(ip, 0, sizeof(*ip));
ip->ihl = 5;
ip->version = 4;
ip->ttl = 64;
ip->tos = tos;
ip->tot_len = htons(HWSIM_IP_LEN);
ip->protocol = 1;
ip->saddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1);
ip->daddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2);
ip->check = ipv4_hdr_checksum(ip, sizeof(*ip));
dpos = (u8 *) (ip + 1);
for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++)
*dpos++ = i;
if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2],
HWSIM_PACKETLEN) < 0)
return -1;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
" src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
return 0;
}
static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
char *cmd)
{
u8 *buf;
struct ether_header *eth;
struct l2_packet_data *l2 = NULL;
size_t len;
u16 ethertype;
int res = -1;
const char *ifname = hapd->conf->iface;
if (os_strncmp(cmd, "ifname=", 7) == 0) {
cmd += 7;
ifname = cmd;
cmd = os_strchr(cmd, ' ');
if (cmd == NULL)
return -1;
*cmd++ = '\0';
}
len = os_strlen(cmd);
if (len & 1 || len < ETH_HLEN * 2)
return -1;
len /= 2;
buf = os_malloc(len);
if (buf == NULL)
return -1;
if (hexstr2bin(cmd, buf, len) < 0)
goto done;
eth = (struct ether_header *) buf;
ethertype = ntohs(eth->ether_type);
l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
hostapd_data_test_rx, hapd, 1);
if (l2 == NULL)
goto done;
res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
done:
if (l2)
l2_packet_deinit(l2);
os_free(buf);
return res < 0 ? -1 : 0;
}
static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd)
{
#ifdef WPA_TRACE_BFD
char *pos;
wpa_trace_fail_after = atoi(cmd);
pos = os_strchr(cmd, ':');
if (pos) {
pos++;
os_strlcpy(wpa_trace_fail_func, pos,
sizeof(wpa_trace_fail_func));
} else {
wpa_trace_fail_after = 0;
}
return 0;
#else /* WPA_TRACE_BFD */
return -1;
#endif /* WPA_TRACE_BFD */
}
static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd,
char *buf, size_t buflen)
{
#ifdef WPA_TRACE_BFD
return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after,
wpa_trace_fail_func);
#else /* WPA_TRACE_BFD */
return -1;
#endif /* WPA_TRACE_BFD */
}
static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd)
{
#ifdef WPA_TRACE_BFD
char *pos;
wpa_trace_test_fail_after = atoi(cmd);
pos = os_strchr(cmd, ':');
if (pos) {
pos++;
os_strlcpy(wpa_trace_test_fail_func, pos,
sizeof(wpa_trace_test_fail_func));
} else {
wpa_trace_test_fail_after = 0;
}
return 0;
#else /* WPA_TRACE_BFD */
return -1;
#endif /* WPA_TRACE_BFD */
}
static int hostapd_ctrl_get_fail(struct hostapd_data *hapd,
char *buf, size_t buflen)
{
#ifdef WPA_TRACE_BFD
return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
wpa_trace_test_fail_func);
#else /* WPA_TRACE_BFD */
return -1;
#endif /* WPA_TRACE_BFD */
}
#endif /* CONFIG_TESTING_OPTIONS */
static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
char *pos)
{
#ifdef NEED_AP_MLME
struct csa_settings settings;
int ret;
unsigned int i;
ret = hostapd_parse_csa_settings(pos, &settings);
if (ret)
return ret;
for (i = 0; i < iface->num_bss; i++) {
ret = hostapd_switch_channel(iface->bss[i], &settings);
if (ret) {
/* FIX: What do we do if CSA fails in the middle of
* submitting multi-BSS CSA requests? */
return ret;
}
}
return 0;
#else /* NEED_AP_MLME */
return -1;
#endif /* NEED_AP_MLME */
}
static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
int reply_size, const char *param)
{
#ifdef RADIUS_SERVER
if (os_strcmp(param, "radius_server") == 0) {
return radius_server_get_mib(hapd->radius_srv, reply,
reply_size);
}
#endif /* RADIUS_SERVER */
return -1;
}
static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
char *buf, size_t buflen)
{
int ret;
char *pos;
u8 *data = NULL;
unsigned int vendor_id, subcmd;
struct wpabuf *reply;
size_t data_len = 0;
/* cmd: <vendor id> <subcommand id> [<hex formatted data>] */
vendor_id = strtoul(cmd, &pos, 16);
if (!isblank((unsigned char) *pos))
return -EINVAL;
subcmd = strtoul(pos, &pos, 10);
if (*pos != '\0') {
if (!isblank((unsigned char) *pos++))
return -EINVAL;
data_len = os_strlen(pos);
}
if (data_len) {
data_len /= 2;
data = os_malloc(data_len);
if (!data)
return -ENOBUFS;
if (hexstr2bin(pos, data, data_len)) {
wpa_printf(MSG_DEBUG,
"Vendor command: wrong parameter format");
os_free(data);
return -EINVAL;
}
}
reply = wpabuf_alloc((buflen - 1) / 2);
if (!reply) {
os_free(data);
return -ENOBUFS;
}
ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
reply);
if (ret == 0)
ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
wpabuf_len(reply));
wpabuf_free(reply);
os_free(data);
return ret;
}
static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
if (hwaddr_aton(cmd, addr))
return -1;
sta = ap_get_sta(hapd, addr);
if (!sta || !sta->eapol_sm)
return -1;
eapol_auth_reauthenticate(sta->eapol_sm);
return 0;
}
static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
char *pos = cmd, *param;
if (hwaddr_aton(pos, addr) || pos[17] != ' ')
return -1;
pos += 18;
param = pos;
pos = os_strchr(pos, ' ');
if (!pos)
return -1;
*pos++ = '\0';
sta = ap_get_sta(hapd, addr);
if (!sta || !sta->eapol_sm)
return -1;
return eapol_auth_set_conf(sta->eapol_sm, param, pos);
}
static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd,
char *buf, size_t buflen)
{
char *pos, *end, *stamp;
int ret;
/* cmd: "LOG_LEVEL [<level>]" */
if (*cmd == '\0') {
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, "Current level: %s\n"
"Timestamp: %d\n",
debug_level_str(wpa_debug_level),
wpa_debug_timestamp);
if (os_snprintf_error(end - pos, ret))
ret = 0;
return ret;
}
while (*cmd == ' ')
cmd++;
stamp = os_strchr(cmd, ' ');
if (stamp) {
*stamp++ = '\0';
while (*stamp == ' ') {
stamp++;
}
}
if (os_strlen(cmd)) {
int level = str_to_debug_level(cmd);
if (level < 0)
return -1;
wpa_debug_level = level;
}
if (stamp && os_strlen(stamp))
wpa_debug_timestamp = atoi(stamp);
os_memcpy(buf, "OK\n", 3);
return 3;
}
#ifdef NEED_AP_MLME
static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd,
char *buf, size_t buflen)
{
struct hostapd_iface *iface = hapd->iface;
char *pos, *end;
struct hostapd_sta_info *info;
struct os_reltime now;
if (!iface->num_sta_seen)
return 0;
sta_track_expire(iface, 0);
pos = buf;
end = buf + buflen;
os_get_reltime(&now);
dl_list_for_each_reverse(info, &iface->sta_seen,
struct hostapd_sta_info, list) {
struct os_reltime age;
int ret;
os_reltime_sub(&now, &info->last_seen, &age);
ret = os_snprintf(pos, end - pos, MACSTR " %u %d\n",
MAC2STR(info->addr), (unsigned int) age.sec,
info->ssi_signal);
if (os_snprintf_error(end - pos, ret))
break;
pos += ret;
}
return pos - buf;
}
#endif /* NEED_AP_MLME */
static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd,
const char *cmd)
{
u8 addr[ETH_ALEN];
if (hwaddr_aton(cmd, addr)) {
wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address");
return -1;
}
return hostapd_send_lci_req(hapd, addr);
}
static int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd)
{
u8 addr[ETH_ALEN];
char *token, *context = NULL;
int random_interval, min_ap;
u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS];
unsigned int n_responders;
token = str_token(cmd, " ", &context);
if (!token || hwaddr_aton(token, addr)) {
wpa_printf(MSG_INFO,
"CTRL: REQ_RANGE - Bad destination address");
return -1;
}
token = str_token(cmd, " ", &context);
if (!token)
return -1;
random_interval = atoi(token);
if (random_interval < 0 || random_interval > 0xffff)
return -1;
token = str_token(cmd, " ", &context);
if (!token)
return -1;
min_ap = atoi(token);
if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP)
return -1;
n_responders = 0;
while ((token = str_token(cmd, " ", &context))) {
if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) {
wpa_printf(MSG_INFO,
"CTRL: REQ_RANGE: Too many responders");
return -1;
}
if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) {
wpa_printf(MSG_INFO,
"CTRL: REQ_RANGE: Bad responder address");
return -1;
}
n_responders++;
}
if (!n_responders) {
wpa_printf(MSG_INFO,
"CTRL: REQ_RANGE - No FTM responder address");
return -1;
}
return hostapd_send_range_req(hapd, addr, random_interval, min_ap,
responders, n_responders);
}
static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf)
{
struct wpa_ssid_value ssid;
u8 bssid[ETH_ALEN];
struct wpabuf *nr, *lci = NULL, *civic = NULL;
int stationary = 0;
char *tmp;
int ret;
if (!(hapd->conf->radio_measurements[0] &
WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
wpa_printf(MSG_ERROR,
"CTRL: SET_NEIGHBOR: Neighbor report is not enabled");
return -1;
}
if (hwaddr_aton(buf, bssid)) {
wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad BSSID");
return -1;
}
tmp = os_strstr(buf, "ssid=");
if (!tmp || ssid_parse(tmp + 5, &ssid)) {
wpa_printf(MSG_ERROR,
"CTRL: SET_NEIGHBOR: Bad or missing SSID");
return -1;
}
buf = os_strchr(tmp + 6, tmp[5] == '"' ? '"' : ' ');
if (!buf)
return -1;
tmp = os_strstr(buf, "nr=");
if (!tmp) {
wpa_printf(MSG_ERROR,
"CTRL: SET_NEIGHBOR: Missing Neighbor Report element");
return -1;
}
buf = os_strchr(tmp, ' ');
if (buf)
*buf++ = '\0';
nr = wpabuf_parse_bin(tmp + 3);
if (!nr) {
wpa_printf(MSG_ERROR,
"CTRL: SET_NEIGHBOR: Bad Neighbor Report element");
return -1;
}
if (!buf)
goto set;
tmp = os_strstr(buf, "lci=");
if (tmp) {
buf = os_strchr(tmp, ' ');
if (buf)
*buf++ = '\0';
lci = wpabuf_parse_bin(tmp + 4);
if (!lci) {
wpa_printf(MSG_ERROR,
"CTRL: SET_NEIGHBOR: Bad LCI subelement");
wpabuf_free(nr);
return -1;
}
}
if (!buf)
goto set;
tmp = os_strstr(buf, "civic=");
if (tmp) {
buf = os_strchr(tmp, ' ');
if (buf)
*buf++ = '\0';
civic = wpabuf_parse_bin(tmp + 6);
if (!civic) {
wpa_printf(MSG_ERROR,
"CTRL: SET_NEIGHBOR: Bad civic subelement");
wpabuf_free(nr);
wpabuf_free(lci);
return -1;
}
}
if (!buf)
goto set;
if (os_strstr(buf, "stat"))
stationary = 1;
set:
ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic,
stationary);
wpabuf_free(nr);
wpabuf_free(lci);
wpabuf_free(civic);
return ret;
}
static int hostapd_ctrl_iface_remove_neighbor(struct hostapd_data *hapd,
char *buf)
{
struct wpa_ssid_value ssid;
u8 bssid[ETH_ALEN];
char *tmp;
if (hwaddr_aton(buf, bssid)) {
wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad BSSID");
return -1;
}
tmp = os_strstr(buf, "ssid=");
if (!tmp || ssid_parse(tmp + 5, &ssid)) {
wpa_printf(MSG_ERROR,
"CTRL: REMOVE_NEIGHBORr: Bad or missing SSID");
return -1;
}
return hostapd_neighbor_remove(hapd, bssid, &ssid);
}
static int hostapd_ctrl_driver_flags(struct hostapd_iface *iface, char *buf,
size_t buflen)
{
int ret, i;
char *pos, *end;
ret = os_snprintf(buf, buflen, "%016llX:\n",
(long long unsigned) iface->drv_flags);
if (os_snprintf_error(buflen, ret))
return -1;
pos = buf + ret;
end = buf + buflen;
for (i = 0; i < 64; i++) {
if (iface->drv_flags & (1LLU << i)) {
ret = os_snprintf(pos, end - pos, "%s\n",
driver_flag_to_string(1LLU << i));
if (os_snprintf_error(end - pos, ret))
return -1;
pos += ret;
}
}
return pos - buf;
}
static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
char *buf, char *reply,
int reply_size,
struct sockaddr_storage *from,
socklen_t fromlen)
{
int reply_len, res;
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, "RELOG", 5) == 0) {
if (wpa_debug_reopen_file() < 0)
reply_len = -1;
} else if (os_strcmp(buf, "STATUS") == 0) {
reply_len = hostapd_ctrl_iface_status(hapd, reply,
reply_size);
} else if (os_strcmp(buf, "STATUS-DRIVER") == 0) {
reply_len = hostapd_drv_status(hapd, reply, reply_size);
} else if (os_strcmp(buf, "MIB") == 0) {
reply_len = ieee802_11_get_mib(hapd, reply, reply_size);
if (reply_len >= 0) {
res = wpa_get_mib(hapd->wpa_auth, reply + reply_len,
reply_size - reply_len);
if (res < 0)
reply_len = -1;
else
reply_len += res;
}
if (reply_len >= 0) {
res = ieee802_1x_get_mib(hapd, reply + reply_len,
reply_size - reply_len);
if (res < 0)
reply_len = -1;
else
reply_len += res;
}
#ifndef CONFIG_NO_RADIUS
if (reply_len >= 0) {
res = radius_client_get_mib(hapd->radius,
reply + reply_len,
reply_size - reply_len);
if (res < 0)
reply_len = -1;
else
reply_len += res;
}
#endif /* CONFIG_NO_RADIUS */
} else if (os_strncmp(buf, "MIB ", 4) == 0) {
reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size,
buf + 4);
} else if (os_strcmp(buf, "STA-FIRST") == 0) {
reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
reply_size);
} else if (os_strncmp(buf, "STA ", 4) == 0) {
reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply,
reply_size);
} else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply,
reply_size);
} else if (os_strcmp(buf, "ATTACH") == 0) {
if (hostapd_ctrl_iface_attach(hapd, from, fromlen))
reply_len = -1;
} else if (os_strcmp(buf, "DETACH") == 0) {
if (hostapd_ctrl_iface_detach(hapd, from, fromlen))
reply_len = -1;
} else if (os_strncmp(buf, "LEVEL ", 6) == 0) {
if (hostapd_ctrl_iface_level(hapd, from, fromlen,
buf + 6))
reply_len = -1;
} else if (os_strncmp(buf, "NEW_STA ", 8) == 0) {
if (hostapd_ctrl_iface_new_sta(hapd, buf + 8))
reply_len = -1;
} else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) {
if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15))
reply_len = -1;
} else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) {
if (hostapd_ctrl_iface_disassociate(hapd, buf + 13))
reply_len = -1;
#ifdef CONFIG_TAXONOMY
} else if (os_strncmp(buf, "SIGNATURE ", 10) == 0) {
reply_len = hostapd_ctrl_iface_signature(hapd, buf + 10,
reply, reply_size);
#endif /* CONFIG_TAXONOMY */
} else if (os_strncmp(buf, "POLL_STA ", 9) == 0) {
if (hostapd_ctrl_iface_poll_sta(hapd, buf + 9))
reply_len = -1;
} else if (os_strcmp(buf, "STOP_AP") == 0) {
if (hostapd_ctrl_iface_stop_ap(hapd))
reply_len = -1;
#ifdef CONFIG_IEEE80211W
#ifdef NEED_AP_MLME
} else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) {
if (hostapd_ctrl_iface_sa_query(hapd, buf + 9))
reply_len = -1;
#endif /* NEED_AP_MLME */
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_WPS
} else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) {
reply_len = hostapd_ctrl_iface_wps_check_pin(
hapd, buf + 14, reply, reply_size);
} else if (os_strcmp(buf, "WPS_PBC") == 0) {
if (hostapd_wps_button_pushed(hapd, NULL))
reply_len = -1;
} else if (os_strcmp(buf, "WPS_CANCEL") == 0) {
if (hostapd_wps_cancel(hapd))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) {
reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
reply, reply_size);
} else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) {
if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) {
reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply,
reply_size);
#ifdef CONFIG_WPS_NFC
} else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) {
if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17))
reply_len = -1;
} else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) {
reply_len = hostapd_ctrl_iface_wps_nfc_config_token(
hapd, buf + 21, reply, reply_size);
} else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
reply_len = hostapd_ctrl_iface_wps_nfc_token(
hapd, buf + 14, reply, reply_size);
} else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
hapd, buf + 21, reply, reply_size);
} else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
reply_len = -1;
#endif /* CONFIG_WPS_NFC */
#endif /* CONFIG_WPS */
#ifdef CONFIG_INTERWORKING
} else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) {
if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16))
reply_len = -1;
} else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) {
if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18))
reply_len = -1;
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_HS20
} else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) {
if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15))
reply_len = -1;
} else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) {
if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16))
reply_len = -1;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_WNM
} else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) {
if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18))
reply_len = -1;
} else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
reply_len = -1;
} else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
reply_len = -1;
#endif /* CONFIG_WNM */
} else if (os_strcmp(buf, "GET_CONFIG") == 0) {
reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
reply_size);
} else if (os_strncmp(buf, "SET ", 4) == 0) {
if (hostapd_ctrl_iface_set(hapd, buf + 4))
reply_len = -1;
} else if (os_strncmp(buf, "GET ", 4) == 0) {
reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply,
reply_size);
} else if (os_strncmp(buf, "ENABLE", 6) == 0) {
if (hostapd_ctrl_iface_enable(hapd->iface))
reply_len = -1;
} else if (os_strncmp(buf, "RELOAD", 6) == 0) {
if (hostapd_ctrl_iface_reload(hapd->iface))
reply_len = -1;
} else if (os_strncmp(buf, "DISABLE", 7) == 0) {
if (hostapd_ctrl_iface_disable(hapd->iface))
reply_len = -1;
} else if (os_strcmp(buf, "UPDATE_BEACON") == 0) {
if (ieee802_11_set_beacon(hapd))
reply_len = -1;
#ifdef CONFIG_TESTING_OPTIONS
} else if (os_strncmp(buf, "RADAR ", 6) == 0) {
if (hostapd_ctrl_iface_radar(hapd, buf + 6))
reply_len = -1;
} else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
reply_len = -1;
} else if (os_strncmp(buf, "MGMT_RX_PROCESS ", 16) == 0) {
if (hostapd_ctrl_iface_mgmt_rx_process(hapd, buf + 16) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) {
if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) {
if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0)
reply_len = -1;
} else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) {
reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply,
reply_size);
} else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) {
if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0)
reply_len = -1;
} else if (os_strcmp(buf, "GET_FAIL") == 0) {
reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size);
#endif /* CONFIG_TESTING_OPTIONS */
} else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
reply_len = -1;
} else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
reply_size);
} else if (os_strcmp(buf, "ERP_FLUSH") == 0) {
ieee802_1x_erp_flush(hapd);
#ifdef RADIUS_SERVER
radius_server_erp_flush(hapd->radius_srv);
#endif /* RADIUS_SERVER */
} else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) {
if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13))
reply_len = -1;
} else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) {
if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10))
reply_len = -1;
} else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) {
reply_len = hostapd_ctrl_iface_log_level(
hapd, buf + 9, reply, reply_size);
#ifdef NEED_AP_MLME
} else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) {
reply_len = hostapd_ctrl_iface_track_sta_list(
hapd, reply, reply_size);
#endif /* NEED_AP_MLME */
} else if (os_strcmp(buf, "PMKSA") == 0) {
reply_len = hostapd_ctrl_iface_pmksa_list(hapd, reply,
reply_size);
} else if (os_strcmp(buf, "PMKSA_FLUSH") == 0) {
hostapd_ctrl_iface_pmksa_flush(hapd);
} else if (os_strncmp(buf, "SET_NEIGHBOR ", 13) == 0) {
if (hostapd_ctrl_iface_set_neighbor(hapd, buf + 13))
reply_len = -1;
} else if (os_strncmp(buf, "REMOVE_NEIGHBOR ", 16) == 0) {
if (hostapd_ctrl_iface_remove_neighbor(hapd, buf + 16))
reply_len = -1;
} else if (os_strncmp(buf, "REQ_LCI ", 8) == 0) {
if (hostapd_ctrl_iface_req_lci(hapd, buf + 8))
reply_len = -1;
} else if (os_strncmp(buf, "REQ_RANGE ", 10) == 0) {
if (hostapd_ctrl_iface_req_range(hapd, buf + 10))
reply_len = -1;
} else if (os_strcmp(buf, "DRIVER_FLAGS") == 0) {
reply_len = hostapd_ctrl_driver_flags(hapd->iface, reply,
reply_size);
} else if (os_strcmp(buf, "TERMINATE") == 0) {
eloop_terminate();
} else {
os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
reply_len = 16;
}
if (reply_len < 0) {
os_memcpy(reply, "FAIL\n", 5);
reply_len = 5;
}
return reply_len;
}
static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
void *sock_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
char buf[4096];
int res;
struct sockaddr_storage from;
socklen_t fromlen = sizeof(from);
char *reply, *pos = buf;
const int reply_size = 4096;
int reply_len;
int level = MSG_DEBUG;
#ifdef CONFIG_CTRL_IFACE_UDP
unsigned char lcookie[COOKIE_LEN];
#endif /* CONFIG_CTRL_IFACE_UDP */
res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
(struct sockaddr *) &from, &fromlen);
if (res < 0) {
wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
strerror(errno));
return;
}
buf[res] = '\0';
reply = os_malloc(reply_size);
if (reply == NULL) {
if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
fromlen) < 0) {
wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
strerror(errno));
}
return;
}
#ifdef CONFIG_CTRL_IFACE_UDP
if (os_strcmp(buf, "GET_COOKIE") == 0) {
os_memcpy(reply, "COOKIE=", 7);
wpa_snprintf_hex(reply + 7, 2 * COOKIE_LEN + 1,
cookie, COOKIE_LEN);
reply_len = 7 + 2 * COOKIE_LEN;
goto done;
}
if (os_strncmp(buf, "COOKIE=", 7) != 0 ||
hexstr2bin(buf + 7, lcookie, COOKIE_LEN) < 0) {
wpa_printf(MSG_DEBUG,
"CTRL: No cookie in the request - drop request");
os_free(reply);
return;
}
if (os_memcmp(cookie, lcookie, COOKIE_LEN) != 0) {
wpa_printf(MSG_DEBUG,
"CTRL: Invalid cookie in the request - drop request");
os_free(reply);
return;
}
pos = buf + 7 + 2 * COOKIE_LEN;
while (*pos == ' ')
pos++;
#endif /* CONFIG_CTRL_IFACE_UDP */
if (os_strcmp(pos, "PING") == 0)
level = MSG_EXCESSIVE;
wpa_hexdump_ascii(level, "RX ctrl_iface", pos, res);
reply_len = hostapd_ctrl_iface_receive_process(hapd, pos,
reply, reply_size,
&from, fromlen);
#ifdef CONFIG_CTRL_IFACE_UDP
done:
#endif /* CONFIG_CTRL_IFACE_UDP */
if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
fromlen) < 0) {
wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
strerror(errno));
}
os_free(reply);
}
#ifndef CONFIG_CTRL_IFACE_UDP
static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd)
{
char *buf;
size_t len;
if (hapd->conf->ctrl_interface == NULL)
return NULL;
len = os_strlen(hapd->conf->ctrl_interface) +
os_strlen(hapd->conf->iface) + 2;
buf = os_malloc(len);
if (buf == NULL)
return NULL;
os_snprintf(buf, len, "%s/%s",
hapd->conf->ctrl_interface, hapd->conf->iface);
buf[len - 1] = '\0';
return buf;
}
#endif /* CONFIG_CTRL_IFACE_UDP */
static void hostapd_ctrl_iface_msg_cb(void *ctx, int level,
enum wpa_msg_type type,
const char *txt, size_t len)
{
struct hostapd_data *hapd = ctx;
if (hapd == NULL)
return;
hostapd_ctrl_iface_send(hapd, level, type, txt, len);
}
int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
{
#ifdef CONFIG_CTRL_IFACE_UDP
int port = HOSTAPD_CTRL_IFACE_PORT;
char p[32] = { 0 };
char port_str[40], *tmp;
char *pos;
struct addrinfo hints = { 0 }, *res, *saveres;
int n;
if (hapd->ctrl_sock > -1) {
wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
return 0;
}
if (hapd->conf->ctrl_interface == NULL)
return 0;
pos = os_strstr(hapd->conf->ctrl_interface, "udp:");
if (pos) {
pos += 4;
port = atoi(pos);
if (port <= 0) {
wpa_printf(MSG_ERROR, "Invalid ctrl_iface UDP port");
goto fail;
}
}
dl_list_init(&hapd->ctrl_dst);
hapd->ctrl_sock = -1;
os_get_random(cookie, COOKIE_LEN);
#ifdef CONFIG_CTRL_IFACE_UDP_REMOTE
hints.ai_flags = AI_PASSIVE;
#endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
#ifdef CONFIG_CTRL_IFACE_UDP_IPV6
hints.ai_family = AF_INET6;
#else /* CONFIG_CTRL_IFACE_UDP_IPV6 */
hints.ai_family = AF_INET;
#endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */
hints.ai_socktype = SOCK_DGRAM;
try_again:
os_snprintf(p, sizeof(p), "%d", port);
n = getaddrinfo(NULL, p, &hints, &res);
if (n) {
wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n));
goto fail;
}
saveres = res;
hapd->ctrl_sock = socket(res->ai_family, res->ai_socktype,
res->ai_protocol);
if (hapd->ctrl_sock < 0) {
wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno));
goto fail;
}
if (bind(hapd->ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) {
port--;
if ((HOSTAPD_CTRL_IFACE_PORT - port) <
HOSTAPD_CTRL_IFACE_PORT_LIMIT && !pos)
goto try_again;
wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno));
goto fail;
}
freeaddrinfo(saveres);
os_snprintf(port_str, sizeof(port_str), "udp:%d", port);
tmp = os_strdup(port_str);
if (tmp) {
os_free(hapd->conf->ctrl_interface);
hapd->conf->ctrl_interface = tmp;
}
wpa_printf(MSG_DEBUG, "ctrl_iface_init UDP port: %d", port);
if (eloop_register_read_sock(hapd->ctrl_sock,
hostapd_ctrl_iface_receive, hapd, NULL) <
0) {
hostapd_ctrl_iface_deinit(hapd);
return -1;
}
hapd->msg_ctx = hapd;
wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
return 0;
fail:
if (hapd->ctrl_sock >= 0)
close(hapd->ctrl_sock);
return -1;
#else /* CONFIG_CTRL_IFACE_UDP */
struct sockaddr_un addr;
int s = -1;
char *fname = NULL;
if (hapd->ctrl_sock > -1) {
wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
return 0;
}
dl_list_init(&hapd->ctrl_dst);
if (hapd->conf->ctrl_interface == NULL)
return 0;
if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
if (errno == EEXIST) {
wpa_printf(MSG_DEBUG, "Using existing control "
"interface directory.");
} else {
wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
strerror(errno));
goto fail;
}
}
if (hapd->conf->ctrl_interface_gid_set &&
chown(hapd->conf->ctrl_interface, -1,
hapd->conf->ctrl_interface_gid) < 0) {
wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
strerror(errno));
return -1;
}
if (!hapd->conf->ctrl_interface_gid_set &&
hapd->iface->interfaces->ctrl_iface_group &&
chown(hapd->conf->ctrl_interface, -1,
hapd->iface->interfaces->ctrl_iface_group) < 0) {
wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
strerror(errno));
return -1;
}
#ifdef ANDROID
/*
* Android is using umask 0077 which would leave the control interface
* directory without group access. This breaks things since Wi-Fi
* framework assumes that this directory can be accessed by other
* applications in the wifi group. Fix this by adding group access even
* if umask value would prevent this.
*/
if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
strerror(errno));
/* Try to continue anyway */
}
#endif /* ANDROID */
if (os_strlen(hapd->conf->ctrl_interface) + 1 +
os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
goto fail;
s = socket(PF_UNIX, SOCK_DGRAM, 0);
if (s < 0) {
wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
goto fail;
}
os_memset(&addr, 0, sizeof(addr));
#ifdef __FreeBSD__
addr.sun_len = sizeof(addr);
#endif /* __FreeBSD__ */
addr.sun_family = AF_UNIX;
fname = hostapd_ctrl_iface_path(hapd);
if (fname == NULL)
goto fail;
os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
strerror(errno));
if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
" allow connections - assuming it was left"
"over from forced program termination");
if (unlink(fname) < 0) {
wpa_printf(MSG_ERROR,
"Could not unlink existing ctrl_iface socket '%s': %s",
fname, strerror(errno));
goto fail;
}
if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
0) {
wpa_printf(MSG_ERROR,
"hostapd-ctrl-iface: bind(PF_UNIX): %s",
strerror(errno));
goto fail;
}
wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
"ctrl_iface socket '%s'", fname);
} else {
wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
"be in use - cannot override it");
wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
"not used anymore", fname);
os_free(fname);
fname = NULL;
goto fail;
}
}
if (hapd->conf->ctrl_interface_gid_set &&
chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
strerror(errno));
goto fail;
}
if (!hapd->conf->ctrl_interface_gid_set &&
hapd->iface->interfaces->ctrl_iface_group &&
chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
strerror(errno));
goto fail;
}
if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
strerror(errno));
goto fail;
}
os_free(fname);
hapd->ctrl_sock = s;
if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd,
NULL) < 0) {
hostapd_ctrl_iface_deinit(hapd);
return -1;
}
hapd->msg_ctx = hapd;
wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
return 0;
fail:
if (s >= 0)
close(s);
if (fname) {
unlink(fname);
os_free(fname);
}
return -1;
#endif /* CONFIG_CTRL_IFACE_UDP */
}
void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
{
struct wpa_ctrl_dst *dst, *prev;
if (hapd->ctrl_sock > -1) {
#ifndef CONFIG_CTRL_IFACE_UDP
char *fname;
#endif /* !CONFIG_CTRL_IFACE_UDP */
eloop_unregister_read_sock(hapd->ctrl_sock);
close(hapd->ctrl_sock);
hapd->ctrl_sock = -1;
#ifndef CONFIG_CTRL_IFACE_UDP
fname = hostapd_ctrl_iface_path(hapd);
if (fname)
unlink(fname);
os_free(fname);
if (hapd->conf->ctrl_interface &&
rmdir(hapd->conf->ctrl_interface) < 0) {
if (errno == ENOTEMPTY) {
wpa_printf(MSG_DEBUG, "Control interface "
"directory not empty - leaving it "
"behind");
} else {
wpa_printf(MSG_ERROR,
"rmdir[ctrl_interface=%s]: %s",
hapd->conf->ctrl_interface,
strerror(errno));
}
}
#endif /* !CONFIG_CTRL_IFACE_UDP */
}
dl_list_for_each_safe(dst, prev, &hapd->ctrl_dst, struct wpa_ctrl_dst,
list)
os_free(dst);
#ifdef CONFIG_TESTING_OPTIONS
l2_packet_deinit(hapd->l2_test);
hapd->l2_test = NULL;
#endif /* CONFIG_TESTING_OPTIONS */
}
static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces,
char *buf)
{
if (hostapd_add_iface(interfaces, buf) < 0) {
wpa_printf(MSG_ERROR, "Adding interface %s failed", buf);
return -1;
}
return 0;
}
static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces,
char *buf)
{
if (hostapd_remove_iface(interfaces, buf) < 0) {
wpa_printf(MSG_ERROR, "Removing interface %s failed", buf);
return -1;
}
return 0;
}
static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces,
struct sockaddr_storage *from,
socklen_t fromlen)
{
return ctrl_iface_attach(&interfaces->global_ctrl_dst, from, fromlen);
}
static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces,
struct sockaddr_storage *from,
socklen_t fromlen)
{
return ctrl_iface_detach(&interfaces->global_ctrl_dst, from, fromlen);
}
static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces)
{
#ifdef CONFIG_WPS_TESTING
wps_version_number = 0x20;
wps_testing_dummy_cred = 0;
wps_corrupt_pkhash = 0;
#endif /* CONFIG_WPS_TESTING */
}
#ifdef CONFIG_FST
static int
hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces,
const char *cmd)
{
char ifname[IFNAMSIZ + 1];
struct fst_iface_cfg cfg;
struct hostapd_data *hapd;
struct fst_wpa_obj iface_obj;
if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) {
hapd = hostapd_get_iface(interfaces, ifname);
if (hapd) {
if (hapd->iface->fst) {
wpa_printf(MSG_INFO, "FST: Already attached");
return -1;
}
fst_hostapd_fill_iface_obj(hapd, &iface_obj);
hapd->iface->fst = fst_attach(ifname, hapd->own_addr,
&iface_obj, &cfg);
if (hapd->iface->fst)
return 0;
}
}
return -EINVAL;
}
static int
hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces,
const char *cmd)
{
char ifname[IFNAMSIZ + 1];
struct hostapd_data * hapd;
if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) {
hapd = hostapd_get_iface(interfaces, ifname);
if (hapd) {
if (!fst_iface_detach(ifname)) {
hapd->iface->fst = NULL;
hapd->iface->fst_ies = NULL;
return 0;
}
}
}
return -EINVAL;
}
#endif /* CONFIG_FST */
static struct hostapd_data *
hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces,
const char *ifname)
{
size_t i, j;
for (i = 0; i < interfaces->count; i++) {
struct hostapd_iface *iface = interfaces->iface[i];
for (j = 0; j < iface->num_bss; j++) {
struct hostapd_data *hapd;
hapd = iface->bss[j];
if (os_strcmp(ifname, hapd->conf->iface) == 0)
return hapd;
}
}
return NULL;
}
static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd,
struct hostapd_data *dst_hapd,
const char *param)
{
int res;
char *value;
value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
if (!value) {
wpa_printf(MSG_ERROR,
"DUP: cannot allocate buffer to stringify %s",
param);
goto error_return;
}
if (os_strcmp(param, "wpa") == 0) {
os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d",
src_hapd->conf->wpa);
} else if (os_strcmp(param, "wpa_key_mgmt") == 0 &&
src_hapd->conf->wpa_key_mgmt) {
res = hostapd_ctrl_iface_get_key_mgmt(
src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res))
goto error_stringify;
} else if (os_strcmp(param, "wpa_pairwise") == 0 &&
src_hapd->conf->wpa_pairwise) {
res = wpa_write_ciphers(value,
value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
src_hapd->conf->wpa_pairwise, " ");
if (res < 0)
goto error_stringify;
} else if (os_strcmp(param, "rsn_pairwise") == 0 &&
src_hapd->conf->rsn_pairwise) {
res = wpa_write_ciphers(value,
value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
src_hapd->conf->rsn_pairwise, " ");
if (res < 0)
goto error_stringify;
} else if (os_strcmp(param, "wpa_passphrase") == 0 &&
src_hapd->conf->ssid.wpa_passphrase) {
os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s",
src_hapd->conf->ssid.wpa_passphrase);
} else if (os_strcmp(param, "wpa_psk") == 0 &&
src_hapd->conf->ssid.wpa_psk_set) {
wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
} else {
wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param);
goto error_return;
}
res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value);
os_free(value);
return res;
error_stringify:
wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param);
error_return:
os_free(value);
return -1;
}
static int
hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces,
const char *input,
char *reply, int reply_size)
{
size_t i, j;
int res;
char *pos, *end;
struct hostapd_iface *iface;
int show_ctrl = 0;
if (input)
show_ctrl = !!os_strstr(input, "ctrl");
pos = reply;
end = reply + reply_size;
for (i = 0; i < interfaces->count; i++) {
iface = interfaces->iface[i];
for (j = 0; j < iface->num_bss; j++) {
struct hostapd_bss_config *conf;
conf = iface->conf->bss[j];
if (show_ctrl)
res = os_snprintf(pos, end - pos,
"%s ctrl_iface=%s\n",
conf->iface,
conf->ctrl_interface ?
conf->ctrl_interface : "N/A");
else
res = os_snprintf(pos, end - pos, "%s\n",
conf->iface);
if (os_snprintf_error(end - pos, res)) {
*pos = '\0';
return pos - reply;
}
pos += res;
}
}
return pos - reply;
}
static int
hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces,
char *cmd)
{
char *p_start = cmd, *p_end;
struct hostapd_data *src_hapd, *dst_hapd;
/* cmd: "<src ifname> <dst ifname> <variable name> */
p_end = os_strchr(p_start, ' ');
if (!p_end) {
wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'",
cmd);
return -1;
}
*p_end = '\0';
src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
if (!src_hapd) {
wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'",
p_start);
return -1;
}
p_start = p_end + 1;
p_end = os_strchr(p_start, ' ');
if (!p_end) {
wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'",
cmd);
return -1;
}
*p_end = '\0';
dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
if (!dst_hapd) {
wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'",
p_start);
return -1;
}
p_start = p_end + 1;
return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start);
}
static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces,
const char *ifname,
char *buf, char *reply,
int reply_size,
struct sockaddr_storage *from,
socklen_t fromlen)
{
struct hostapd_data *hapd;
hapd = hostapd_interfaces_get_hapd(interfaces, ifname);
if (hapd == NULL) {
int res;
res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n");
if (os_snprintf_error(reply_size, res))
return -1;
return res;
}
return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size,
from, fromlen);
}
static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
void *sock_ctx)
{
void *interfaces = eloop_ctx;
char buffer[256], *buf = buffer;
int res;
struct sockaddr_storage from;
socklen_t fromlen = sizeof(from);
char *reply;
int reply_len;
const int reply_size = 4096;
#ifdef CONFIG_CTRL_IFACE_UDP
unsigned char lcookie[COOKIE_LEN];
#endif /* CONFIG_CTRL_IFACE_UDP */
res = recvfrom(sock, buffer, sizeof(buffer) - 1, 0,
(struct sockaddr *) &from, &fromlen);
if (res < 0) {
wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
strerror(errno));
return;
}
buf[res] = '\0';
wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf);
reply = os_malloc(reply_size);
if (reply == NULL) {
if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
fromlen) < 0) {
wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
strerror(errno));
}
return;
}
os_memcpy(reply, "OK\n", 3);
reply_len = 3;
#ifdef CONFIG_CTRL_IFACE_UDP
if (os_strcmp(buf, "GET_COOKIE") == 0) {
os_memcpy(reply, "COOKIE=", 7);
wpa_snprintf_hex(reply + 7, 2 * COOKIE_LEN + 1,
gcookie, COOKIE_LEN);
reply_len = 7 + 2 * COOKIE_LEN;
goto send_reply;
}
if (os_strncmp(buf, "COOKIE=", 7) != 0 ||
hexstr2bin(buf + 7, lcookie, COOKIE_LEN) < 0) {
wpa_printf(MSG_DEBUG,
"CTRL: No cookie in the request - drop request");
os_free(reply);
return;
}
if (os_memcmp(gcookie, lcookie, COOKIE_LEN) != 0) {
wpa_printf(MSG_DEBUG,
"CTRL: Invalid cookie in the request - drop request");
os_free(reply);
return;
}
buf += 7 + 2 * COOKIE_LEN;
while (*buf == ' ')
buf++;
#endif /* CONFIG_CTRL_IFACE_UDP */
if (os_strncmp(buf, "IFNAME=", 7) == 0) {
char *pos = os_strchr(buf + 7, ' ');
if (pos) {
*pos++ = '\0';
reply_len = hostapd_global_ctrl_iface_ifname(
interfaces, buf + 7, pos, reply, reply_size,
&from, fromlen);
goto send_reply;
}
}
if (os_strcmp(buf, "PING") == 0) {
os_memcpy(reply, "PONG\n", 5);
reply_len = 5;
} else if (os_strncmp(buf, "RELOG", 5) == 0) {
if (wpa_debug_reopen_file() < 0)
reply_len = -1;
} else if (os_strcmp(buf, "FLUSH") == 0) {
hostapd_ctrl_iface_flush(interfaces);
} else if (os_strncmp(buf, "ADD ", 4) == 0) {
if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0)
reply_len = -1;
} else if (os_strncmp(buf, "REMOVE ", 7) == 0) {
if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0)
reply_len = -1;
} else if (os_strcmp(buf, "ATTACH") == 0) {
if (hostapd_global_ctrl_iface_attach(interfaces, &from,
fromlen))
reply_len = -1;
} else if (os_strcmp(buf, "DETACH") == 0) {
if (hostapd_global_ctrl_iface_detach(interfaces, &from,
fromlen))
reply_len = -1;
#ifdef CONFIG_MODULE_TESTS
} else if (os_strcmp(buf, "MODULE_TESTS") == 0) {
if (hapd_module_tests() < 0)
reply_len = -1;
#endif /* CONFIG_MODULE_TESTS */
#ifdef CONFIG_FST
} else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) {
if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11))
reply_len = os_snprintf(reply, reply_size, "OK\n");
else
reply_len = -1;
} else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) {
if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11))
reply_len = os_snprintf(reply, reply_size, "OK\n");
else
reply_len = -1;
} else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) {
reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size);
#endif /* CONFIG_FST */
} else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) {
if (!hostapd_global_ctrl_iface_dup_network(interfaces,
buf + 12))
reply_len = os_snprintf(reply, reply_size, "OK\n");
else
reply_len = -1;
} else if (os_strncmp(buf, "INTERFACES", 10) == 0) {
reply_len = hostapd_global_ctrl_iface_interfaces(
interfaces, buf + 10, reply, sizeof(buffer));
} else if (os_strcmp(buf, "TERMINATE") == 0) {
eloop_terminate();
} else {
wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
"ignored");
reply_len = -1;
}
send_reply:
if (reply_len < 0) {
os_memcpy(reply, "FAIL\n", 5);
reply_len = 5;
}
if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
fromlen) < 0) {
wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
strerror(errno));
}
os_free(reply);
}
#ifndef CONFIG_CTRL_IFACE_UDP
static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface)
{
char *buf;
size_t len;
if (interface->global_iface_path == NULL)
return NULL;
len = os_strlen(interface->global_iface_path) +
os_strlen(interface->global_iface_name) + 2;
buf = os_malloc(len);
if (buf == NULL)
return NULL;
os_snprintf(buf, len, "%s/%s", interface->global_iface_path,
interface->global_iface_name);
buf[len - 1] = '\0';
return buf;
}
#endif /* CONFIG_CTRL_IFACE_UDP */
int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface)
{
#ifdef CONFIG_CTRL_IFACE_UDP
int port = HOSTAPD_GLOBAL_CTRL_IFACE_PORT;
char p[32] = { 0 };
char *pos;
struct addrinfo hints = { 0 }, *res, *saveres;
int n;
if (interface->global_ctrl_sock > -1) {
wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
return 0;
}
if (interface->global_iface_path == NULL)
return 0;
pos = os_strstr(interface->global_iface_path, "udp:");
if (pos) {
pos += 4;
port = atoi(pos);
if (port <= 0) {
wpa_printf(MSG_ERROR, "Invalid global ctrl UDP port");
goto fail;
}
}
os_get_random(gcookie, COOKIE_LEN);
#ifdef CONFIG_CTRL_IFACE_UDP_REMOTE
hints.ai_flags = AI_PASSIVE;
#endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
#ifdef CONFIG_CTRL_IFACE_UDP_IPV6
hints.ai_family = AF_INET6;
#else /* CONFIG_CTRL_IFACE_UDP_IPV6 */
hints.ai_family = AF_INET;
#endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */
hints.ai_socktype = SOCK_DGRAM;
try_again:
os_snprintf(p, sizeof(p), "%d", port);
n = getaddrinfo(NULL, p, &hints, &res);
if (n) {
wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n));
goto fail;
}
saveres = res;
interface->global_ctrl_sock = socket(res->ai_family, res->ai_socktype,
res->ai_protocol);
if (interface->global_ctrl_sock < 0) {
wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno));
goto fail;
}
if (bind(interface->global_ctrl_sock, res->ai_addr, res->ai_addrlen) <
0) {
port++;
if ((port - HOSTAPD_GLOBAL_CTRL_IFACE_PORT) <
HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT && !pos)
goto try_again;
wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno));
goto fail;
}
freeaddrinfo(saveres);
wpa_printf(MSG_DEBUG, "global ctrl_iface_init UDP port: %d", port);
if (eloop_register_read_sock(interface->global_ctrl_sock,
hostapd_global_ctrl_iface_receive,
interface, NULL) < 0) {
hostapd_global_ctrl_iface_deinit(interface);
return -1;
}
return 0;
fail:
if (interface->global_ctrl_sock >= 0)
close(interface->global_ctrl_sock);
return -1;
#else /* CONFIG_CTRL_IFACE_UDP */
struct sockaddr_un addr;
int s = -1;
char *fname = NULL;
if (interface->global_iface_path == NULL) {
wpa_printf(MSG_DEBUG, "ctrl_iface not configured!");
return 0;
}
if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) {
if (errno == EEXIST) {
wpa_printf(MSG_DEBUG, "Using existing control "
"interface directory.");
} else {
wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
strerror(errno));
goto fail;
}
} else if (interface->ctrl_iface_group &&
chown(interface->global_iface_path, -1,
interface->ctrl_iface_group) < 0) {
wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
strerror(errno));
goto fail;
}
if (os_strlen(interface->global_iface_path) + 1 +
os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path))
goto fail;
s = socket(PF_UNIX, SOCK_DGRAM, 0);
if (s < 0) {
wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
goto fail;
}
os_memset(&addr, 0, sizeof(addr));
#ifdef __FreeBSD__
addr.sun_len = sizeof(addr);
#endif /* __FreeBSD__ */
addr.sun_family = AF_UNIX;
fname = hostapd_global_ctrl_iface_path(interface);
if (fname == NULL)
goto fail;
os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
strerror(errno));
if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
" allow connections - assuming it was left"
"over from forced program termination");
if (unlink(fname) < 0) {
wpa_printf(MSG_ERROR,
"Could not unlink existing ctrl_iface socket '%s': %s",
fname, strerror(errno));
goto fail;
}
if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
0) {
wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s",
strerror(errno));
goto fail;
}
wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
"ctrl_iface socket '%s'", fname);
} else {
wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
"be in use - cannot override it");
wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
"not used anymore", fname);
os_free(fname);
fname = NULL;
goto fail;
}
}
if (interface->ctrl_iface_group &&
chown(fname, -1, interface->ctrl_iface_group) < 0) {
wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
strerror(errno));
goto fail;
}
if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
strerror(errno));
goto fail;
}
os_free(fname);
interface->global_ctrl_sock = s;
eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive,
interface, NULL);
return 0;
fail:
if (s >= 0)
close(s);
if (fname) {
unlink(fname);
os_free(fname);
}
return -1;
#endif /* CONFIG_CTRL_IFACE_UDP */
}
void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces)
{
#ifndef CONFIG_CTRL_IFACE_UDP
char *fname = NULL;
#endif /* CONFIG_CTRL_IFACE_UDP */
struct wpa_ctrl_dst *dst, *prev;
if (interfaces->global_ctrl_sock > -1) {
eloop_unregister_read_sock(interfaces->global_ctrl_sock);
close(interfaces->global_ctrl_sock);
interfaces->global_ctrl_sock = -1;
#ifndef CONFIG_CTRL_IFACE_UDP
fname = hostapd_global_ctrl_iface_path(interfaces);
if (fname) {
unlink(fname);
os_free(fname);
}
if (interfaces->global_iface_path &&
rmdir(interfaces->global_iface_path) < 0) {
if (errno == ENOTEMPTY) {
wpa_printf(MSG_DEBUG, "Control interface "
"directory not empty - leaving it "
"behind");
} else {
wpa_printf(MSG_ERROR,
"rmdir[ctrl_interface=%s]: %s",
interfaces->global_iface_path,
strerror(errno));
}
}
#endif /* CONFIG_CTRL_IFACE_UDP */
}
os_free(interfaces->global_iface_path);
interfaces->global_iface_path = NULL;
dl_list_for_each_safe(dst, prev, &interfaces->global_ctrl_dst,
struct wpa_ctrl_dst, list)
os_free(dst);
}
static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
enum wpa_msg_type type,
const char *buf, size_t len)
{
struct wpa_ctrl_dst *dst, *next;
struct dl_list *ctrl_dst;
struct msghdr msg;
int idx;
struct iovec io[2];
char levelstr[10];
int s;
if (type != WPA_MSG_ONLY_GLOBAL) {
s = hapd->ctrl_sock;
ctrl_dst = &hapd->ctrl_dst;
} else {
s = hapd->iface->interfaces->global_ctrl_sock;
ctrl_dst = &hapd->iface->interfaces->global_ctrl_dst;
}
if (s < 0 || dl_list_empty(ctrl_dst))
return;
os_snprintf(levelstr, sizeof(levelstr), "<%d>", level);
io[0].iov_base = levelstr;
io[0].iov_len = os_strlen(levelstr);
io[1].iov_base = (char *) buf;
io[1].iov_len = len;
os_memset(&msg, 0, sizeof(msg));
msg.msg_iov = io;
msg.msg_iovlen = 2;
idx = 0;
dl_list_for_each_safe(dst, next, ctrl_dst, struct wpa_ctrl_dst, list) {
if (level >= dst->debug_level) {
sockaddr_print(MSG_DEBUG, "CTRL_IFACE monitor send",
&dst->addr, dst->addrlen);
msg.msg_name = &dst->addr;
msg.msg_namelen = dst->addrlen;
if (sendmsg(s, &msg, 0) < 0) {
int _errno = errno;
wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
"%d - %s",
idx, errno, strerror(errno));
dst->errors++;
if (dst->errors > 10 || _errno == ENOENT) {
if (type != WPA_MSG_ONLY_GLOBAL)
hostapd_ctrl_iface_detach(
hapd, &dst->addr,
dst->addrlen);
else
hostapd_global_ctrl_iface_detach(
hapd->iface->interfaces,
&dst->addr,
dst->addrlen);
}
} else
dst->errors = 0;
}
idx++;
}
}
#endif /* CONFIG_NATIVE_WINDOWS */