WPS: Add hostapd_cli get_config command
[libeap.git] / hostapd / ctrl_iface.c
index e03e66f..1886b77 100644 (file)
@@ -34,6 +34,8 @@
 #include "ap/accounting.h"
 #include "ap/wps_hostapd.h"
 #include "ap/ctrl_iface_ap.h"
+#include "wps/wps_defs.h"
+#include "wps/wps.h"
 #include "ctrl_iface.h"
 
 
@@ -155,6 +157,59 @@ static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
 }
 
 
+#ifdef CONFIG_P2P_MANAGER
+static int p2p_manager_disconnect(struct hostapd_data *hapd, u16 stype,
+                                 u8 minor_reason_code, const u8 *addr)
+{
+       struct ieee80211_mgmt *mgmt;
+       int ret;
+       u8 *pos;
+
+       if (hapd->driver->send_frame == NULL)
+               return -1;
+
+       mgmt = os_zalloc(sizeof(*mgmt) + 100);
+       if (mgmt == NULL)
+               return -1;
+
+       wpa_printf(MSG_DEBUG, "P2P: Disconnect STA " MACSTR " with minor "
+                  "reason code %u (stype=%u)",
+                  MAC2STR(addr), minor_reason_code, stype);
+
+       mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, stype);
+       os_memcpy(mgmt->da, addr, ETH_ALEN);
+       os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
+       os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
+       if (stype == WLAN_FC_STYPE_DEAUTH) {
+               mgmt->u.deauth.reason_code =
+                       host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
+               pos = (u8 *) (&mgmt->u.deauth.reason_code + 1);
+       } else {
+               mgmt->u.disassoc.reason_code =
+                       host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
+               pos = (u8 *) (&mgmt->u.disassoc.reason_code + 1);
+       }
+
+       *pos++ = WLAN_EID_VENDOR_SPECIFIC;
+       *pos++ = 4 + 3 + 1;
+       WPA_PUT_BE24(pos, OUI_WFA);
+       pos += 3;
+       *pos++ = P2P_OUI_TYPE;
+
+       *pos++ = P2P_ATTR_MINOR_REASON_CODE;
+       WPA_PUT_LE16(pos, 1);
+       pos += 2;
+       *pos++ = minor_reason_code;
+
+       ret = hapd->driver->send_frame(hapd->drv_priv, (u8 *) mgmt,
+                                      pos - (u8 *) mgmt, 1);
+       os_free(mgmt);
+
+       return ret < 0 ? -1 : 0;
+}
+#endif /* CONFIG_P2P_MANAGER */
+
+
 static int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
                                             const char *txtaddr)
 {
@@ -191,6 +246,14 @@ static int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
                return 0;
        }
 
+#ifdef CONFIG_P2P_MANAGER
+       pos = os_strstr(txtaddr, " p2p=");
+       if (pos) {
+               return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DEAUTH,
+                                             atoi(pos + 5), addr);
+       }
+#endif /* CONFIG_P2P_MANAGER */
+
        hapd->drv.sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
        sta = ap_get_sta(hapd, addr);
        if (sta)
@@ -237,6 +300,14 @@ static int hostapd_ctrl_iface_disassociate(struct hostapd_data *hapd,
                return 0;
        }
 
+#ifdef CONFIG_P2P_MANAGER
+       pos = os_strstr(txtaddr, " p2p=");
+       if (pos) {
+               return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DISASSOC,
+                                             atoi(pos + 5), addr);
+       }
+#endif /* CONFIG_P2P_MANAGER */
+
        hapd->drv.sta_disassoc(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
        sta = ap_get_sta(hapd, addr);
        if (sta)
@@ -299,6 +370,51 @@ static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
 }
 
 
+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 (ret < 0 || (size_t) ret >= buflen)
+                               return -1;
+                       return ret;
+               }
+       }
+
+       ret = os_snprintf(buf, buflen, "%s", pin);
+       if (ret < 0 || (size_t) ret >= buflen)
+               return -1;
+
+       return ret;
+}
+
+
 #ifdef CONFIG_WPS_OOB
 static int hostapd_ctrl_iface_wps_oob(struct hostapd_data *hapd, char *txt)
 {
@@ -377,6 +493,212 @@ static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
 #endif /* CONFIG_WPS */
 
 
+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),
+                         hapd->conf->ssid.ssid);
+       if (ret < 0 || ret >= end - pos)
+               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 (ret < 0 || ret >= end - pos)
+               return pos - buf;
+       pos += ret;
+
+       if (hapd->conf->wps_state &&
+           hapd->conf->ssid.wpa_passphrase) {
+               ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
+                                 hapd->conf->ssid.wpa_passphrase);
+               if (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+       }
+
+       if (hapd->conf->wps_state && 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 (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+       }
+#endif /* CONFIG_WPS */
+
+       if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
+               ret = os_snprintf(pos, end - pos, "key_mgmt=");
+               if (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+
+               if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
+                       ret = os_snprintf(pos, end - pos, "WPA-PSK ");
+                       if (ret < 0 || ret >= end - pos)
+                               return pos - buf;
+                       pos += ret;
+               }
+               if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
+                       ret = os_snprintf(pos, end - pos, "WPA-EAP ");
+                       if (ret < 0 || ret >= end - pos)
+                               return pos - buf;
+                       pos += ret;
+               }
+#ifdef CONFIG_IEEE80211R
+               if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
+                       ret = os_snprintf(pos, end - pos, "FT-PSK ");
+                       if (ret < 0 || ret >= end - pos)
+                               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 (ret < 0 || ret >= end - pos)
+                               return pos - buf;
+                       pos += ret;
+               }
+#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_IEEE80211W
+               if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
+                       ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
+                       if (ret < 0 || ret >= end - pos)
+                               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 (ret < 0 || ret >= end - pos)
+                               return pos - buf;
+                       pos += ret;
+               }
+#endif /* CONFIG_IEEE80211W */
+
+               ret = os_snprintf(pos, end - pos, "\n");
+               if (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+       }
+
+       if (hapd->conf->wpa_group == WPA_CIPHER_CCMP) {
+               ret = os_snprintf(pos, end - pos, "group_cipher=CCMP\n");
+               if (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+       } else if (hapd->conf->wpa_group == WPA_CIPHER_TKIP) {
+               ret = os_snprintf(pos, end - pos, "group_cipher=TKIP\n");
+               if (ret < 0 || ret >= end - pos)
+                       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 (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+
+               if (hapd->conf->rsn_pairwise & WPA_CIPHER_CCMP) {
+                       ret = os_snprintf(pos, end - pos, "CCMP ");
+                       if (ret < 0 || ret >= end - pos)
+                               return pos - buf;
+                       pos += ret;
+               }
+               if (hapd->conf->rsn_pairwise & WPA_CIPHER_TKIP) {
+                       ret = os_snprintf(pos, end - pos, "TKIP ");
+                       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;
+       }
+
+       if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
+               ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
+               if (ret < 0 || ret >= end - pos)
+                       return pos - buf;
+               pos += ret;
+
+               if (hapd->conf->wpa_pairwise & WPA_CIPHER_CCMP) {
+                       ret = os_snprintf(pos, end - pos, "CCMP ");
+                       if (ret < 0 || ret >= end - pos)
+                               return pos - buf;
+                       pos += ret;
+               }
+               if (hapd->conf->wpa_pairwise & WPA_CIPHER_TKIP) {
+                       ret = os_snprintf(pos, end - pos, "TKIP ");
+                       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 hostapd_ctrl_iface_set(struct hostapd_data *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 (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);
+               }
+       } 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);
+#endif /* CONFIG_WPS_TESTING */
+       } else {
+               ret = -1;
+       }
+
+       return ret;
+}
+
+
 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
                                       void *sock_ctx)
 {
@@ -479,6 +801,9 @@ static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
        } 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))
                        reply_len = -1;
@@ -491,6 +816,12 @@ static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
                reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
                                                          reply, reply_size);
 #endif /* CONFIG_WPS */
+       } 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 {
                os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
                reply_len = 16;