NetBSD driver for hostapd based on FreeBSD driver.
This commit is contained in:
rpaulo
parent
33dfcd8fe4
commit
f8258633d6
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@ -0,0 +1,910 @@
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/*
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* Host AP - driver interaction with BSD net80211 layer
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* Copyright (c) 2004, Sam Leffler <sam@errno.com>
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* Copyright (c) 2004, 2Wire, Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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/* Based on:
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* $FreeBSD: src/usr.sbin/wpa/hostapd/driver_freebsd.c,v 1.3 2006/03/07 05:54:19 sam Exp $
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <net80211/ieee80211.h>
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#include <net80211/ieee80211_crypto.h>
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#include <net80211/ieee80211_ioctl.h>
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#include "hostapd.h"
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#include "driver.h"
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#include "ieee802_1x.h"
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#include "eloop.h"
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#include "sta_info.h"
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#include "l2_packet.h"
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#include "eapol_sm.h"
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#include "wpa.h"
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#include "radius.h"
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#include "ieee802_11.h"
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#include "common.h"
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#include "hostap_common.h"
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struct bsd_driver_data {
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struct driver_ops ops; /* base class */
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struct hostapd_data *hapd; /* back pointer */
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char iface[IFNAMSIZ + 1];
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struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
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int ioctl_sock; /* socket for ioctl() use */
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int wext_sock; /* socket for wireless events */
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};
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static const struct driver_ops bsd_driver_ops;
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static int bsd_sta_deauth(void *priv, u8 *addr, int reason_code);
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static int
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set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
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{
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struct ieee80211req ireq;
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memset(&ireq, 0, sizeof(ireq));
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strncpy(ireq.i_name, drv->iface, IFNAMSIZ);
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ireq.i_type = op;
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ireq.i_len = arg_len;
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ireq.i_data = (void *) arg;
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if (ioctl(drv->ioctl_sock, SIOCS80211, &ireq) < 0) {
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perror("ioctl[SIOCS80211]");
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return -1;
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}
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return 0;
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}
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static int
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get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
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{
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struct ieee80211req ireq;
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memset(&ireq, 0, sizeof(ireq));
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strncpy(ireq.i_name, drv->iface, IFNAMSIZ);
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ireq.i_type = op;
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ireq.i_len = arg_len;
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ireq.i_data = arg;
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if (ioctl(drv->ioctl_sock, SIOCG80211, &ireq) < 0) {
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perror("ioctl[SIOCG80211]");
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return -1;
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}
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return ireq.i_len;
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}
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static int
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set80211param(struct bsd_driver_data *drv, int op, int arg)
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{
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struct ieee80211req ireq;
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memset(&ireq, 0, sizeof(ireq));
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strncpy(ireq.i_name, drv->iface, IFNAMSIZ);
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ireq.i_type = op;
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ireq.i_val = arg;
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if (ioctl(drv->ioctl_sock, SIOCS80211, &ireq) < 0) {
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perror("ioctl[SIOCS80211]");
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return -1;
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}
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return 0;
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}
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static const char *
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ether_sprintf(const u8 *addr)
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{
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static char buf[sizeof(MACSTR)];
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if (addr != NULL)
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snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
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else
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snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
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return buf;
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}
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/*
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* Configure WPA parameters.
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*/
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static int
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bsd_configure_wpa(struct bsd_driver_data *drv)
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{
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static const char *ciphernames[] =
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{ "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
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hostapd *hapd = drv->hapd;
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struct hostapd_config *conf = hapd->conf;
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int v;
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switch (conf->wpa_group) {
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case WPA_CIPHER_CCMP:
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v = IEEE80211_CIPHER_AES_CCM;
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break;
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case WPA_CIPHER_TKIP:
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v = IEEE80211_CIPHER_TKIP;
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break;
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case WPA_CIPHER_WEP104:
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v = IEEE80211_CIPHER_WEP;
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break;
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case WPA_CIPHER_WEP40:
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v = IEEE80211_CIPHER_WEP;
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break;
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case WPA_CIPHER_NONE:
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v = IEEE80211_CIPHER_NONE;
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break;
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default:
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printf("Unknown group key cipher %u\n",
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conf->wpa_group);
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return -1;
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}
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: group key cipher=%s (%u)\n", __func__, ciphernames[v], v);
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if (set80211param(drv, IEEE80211_IOC_MCASTCIPHER, v)) {
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printf("Unable to set group key cipher to %u (%s)\n",
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v, ciphernames[v]);
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return -1;
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}
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if (v == IEEE80211_CIPHER_WEP) {
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/* key length is done only for specific ciphers */
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v = (conf->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
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if (set80211param(drv, IEEE80211_IOC_MCASTKEYLEN, v)) {
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printf("Unable to set group key length to %u\n", v);
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return -1;
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}
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}
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v = 0;
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if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
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v |= 1<<IEEE80211_CIPHER_AES_CCM;
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if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
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v |= 1<<IEEE80211_CIPHER_TKIP;
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if (conf->wpa_pairwise & WPA_CIPHER_NONE)
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v |= 1<<IEEE80211_CIPHER_NONE;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: pairwise key ciphers=0x%x\n", __func__, v);
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if (set80211param(drv, IEEE80211_IOC_UCASTCIPHERS, v)) {
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printf("Unable to set pairwise key ciphers to 0x%x\n", v);
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return -1;
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}
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: key management algorithms=0x%x\n",
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__func__, conf->wpa_key_mgmt);
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if (set80211param(drv, IEEE80211_IOC_KEYMGTALGS, conf->wpa_key_mgmt)) {
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printf("Unable to set key management algorithms to 0x%x\n",
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conf->wpa_key_mgmt);
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return -1;
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}
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v = 0;
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if (conf->rsn_preauth)
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v |= BIT(0);
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: rsn capabilities=0x%x\n", __func__, conf->rsn_preauth);
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if (set80211param(drv, IEEE80211_IOC_RSNCAPS, v)) {
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printf("Unable to set RSN capabilities to 0x%x\n", v);
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return -1;
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}
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: enable WPA= 0x%x\n", __func__, conf->wpa);
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if (set80211param(drv, IEEE80211_IOC_WPA, conf->wpa)) {
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printf("Unable to set WPA to %u\n", conf->wpa);
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return -1;
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}
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return 0;
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}
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static int
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bsd_set_iface_flags(void *priv, int dev_up)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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struct ifreq ifr;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_VERBOSE,
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"%s: dev_up=%d\n", __func__, dev_up);
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if (drv->ioctl_sock < 0)
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return -1;
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memset(&ifr, 0, sizeof(ifr));
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snprintf(ifr.ifr_name, IFNAMSIZ, "%s", drv->iface);
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if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
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perror("ioctl[SIOCGIFFLAGS]");
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return -1;
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}
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if (dev_up)
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ifr.ifr_flags |= IFF_UP;
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else
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ifr.ifr_flags &= ~IFF_UP;
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if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
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perror("ioctl[SIOCSIFFLAGS]");
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return -1;
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}
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if (dev_up) {
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memset(&ifr, 0, sizeof(ifr));
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snprintf(ifr.ifr_name, IFNAMSIZ, "%s", drv->iface);
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ifr.ifr_mtu = HOSTAPD_MTU;
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if (ioctl(drv->ioctl_sock, SIOCSIFMTU, &ifr) != 0) {
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perror("ioctl[SIOCSIFMTU]");
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printf("Setting MTU failed - trying to survive with "
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"current value\n");
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}
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}
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return 0;
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}
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static int
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bsd_set_ieee8021x(void *priv, int enabled)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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struct hostapd_config *conf = hapd->conf;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_VERBOSE,
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"%s: enabled=%d\n", __func__, enabled);
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if (!enabled) {
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/* XXX restore state */
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return set80211param(priv, IEEE80211_IOC_AUTHMODE,
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IEEE80211_AUTH_AUTO);
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}
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if (!conf->wpa && !conf->ieee802_1x) {
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hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
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HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
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return -1;
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}
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if (conf->wpa && bsd_configure_wpa(drv) != 0) {
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hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
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HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
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return -1;
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}
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if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
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(conf->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
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hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
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HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
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return -1;
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}
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return bsd_set_iface_flags(priv, 1);
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}
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static int
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bsd_set_privacy(void *priv, int enabled)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: enabled=%d\n", __func__, enabled);
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return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
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}
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static int
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bsd_set_sta_authorized(void *priv, u8 *addr, int authorized)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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struct ieee80211req_mlme mlme;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_VERBOSE,
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"%s: addr=%s authorized=%d\n",
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__func__, ether_sprintf(addr), authorized);
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if (authorized)
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mlme.im_op = IEEE80211_MLME_AUTHORIZE;
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else
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mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
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mlme.im_reason = 0;
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memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
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return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
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}
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static int
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bsd_del_key(void *priv, unsigned char *addr, int key_idx)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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struct ieee80211req_del_key wk;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: addr=%s key_idx=%d\n",
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__func__, ether_sprintf(addr), key_idx);
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memset(&wk, 0, sizeof(wk));
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if (addr != NULL) {
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memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
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wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
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} else {
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wk.idk_keyix = key_idx;
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}
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return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
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}
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static int
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bsd_set_key(void *priv, const char *alg,
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unsigned char *addr, int key_idx,
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u8 *key, size_t key_len)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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struct ieee80211req_key wk;
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u_int8_t cipher;
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if (strcmp(alg, "none") == 0)
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return bsd_del_key(priv, addr, key_idx);
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: alg=%s addr=%s key_idx=%d\n",
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__func__, alg, ether_sprintf(addr), key_idx);
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if (strcmp(alg, "WEP") == 0)
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cipher = IEEE80211_CIPHER_WEP;
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else if (strcmp(alg, "TKIP") == 0)
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cipher = IEEE80211_CIPHER_TKIP;
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else if (strcmp(alg, "CCMP") == 0)
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cipher = IEEE80211_CIPHER_AES_CCM;
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else {
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printf("%s: unknown/unsupported algorithm %s\n",
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__func__, alg);
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return -1;
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}
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if (key_len > sizeof(wk.ik_keydata)) {
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printf("%s: key length %d too big\n", __func__, key_len);
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return -3;
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}
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memset(&wk, 0, sizeof(wk));
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wk.ik_type = cipher;
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wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
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if (addr == NULL) {
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memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
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wk.ik_keyix = key_idx;
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wk.ik_flags |= IEEE80211_KEY_DEFAULT | IEEE80211_KEY_GROUP;
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} else {
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memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
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wk.ik_keyix = IEEE80211_KEYIX_NONE;
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}
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wk.ik_keylen = key_len;
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memcpy(wk.ik_keydata, key, key_len);
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return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
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}
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static int
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bsd_get_seqnum(void *priv, u8 *addr, int idx, u8 *seq)
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{
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struct bsd_driver_data *drv = priv;
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hostapd *hapd = drv->hapd;
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struct ieee80211req_key wk;
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HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
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"%s: addr=%s idx=%d\n", __func__, ether_sprintf(addr), idx);
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memset(&wk, 0, sizeof(wk));
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if (addr == NULL)
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memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
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else
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memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
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wk.ik_keyix = idx;
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if (get80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
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printf("Failed to get encryption.\n");
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return -1;
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} else {
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/* NB: upper layer expects tsc in network order */
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wk.ik_keytsc = htole64(wk.ik_keytsc);
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memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
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return 0;
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}
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}
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static int
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bsd_flush(void *priv)
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{
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u8 allsta[IEEE80211_ADDR_LEN];
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memset(allsta, 0xff, IEEE80211_ADDR_LEN);
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return bsd_sta_deauth(priv, allsta, IEEE80211_REASON_AUTH_LEAVE);
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}
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static int
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bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
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u8 *addr)
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{
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struct bsd_driver_data *drv = priv;
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struct ieee80211req_sta_stats stats;
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memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
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if (get80211var(drv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats)) > 0) {
|
||||
/* XXX? do packets counts include non-data frames? */
|
||||
data->rx_packets = stats.is_stats.ns_rx_data;
|
||||
data->rx_bytes = stats.is_stats.ns_rx_bytes;
|
||||
data->tx_packets = stats.is_stats.ns_tx_data;
|
||||
data->tx_bytes = stats.is_stats.ns_tx_bytes;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_sta_clear_stats(void *priv, u8 *addr)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
hostapd *hapd = drv->hapd;
|
||||
struct ieee80211req_sta_stats stats;
|
||||
|
||||
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "%s: addr=%s\n",
|
||||
__func__, ether_sprintf(addr));
|
||||
|
||||
/* zero station statistics */
|
||||
memset(&stats, 0, sizeof(stats));
|
||||
memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
|
||||
return set80211var(drv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats));
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
|
||||
{
|
||||
/*
|
||||
* Do nothing; we setup parameters at startup that define the
|
||||
* contents of the beacon information element.
|
||||
*/
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_sta_deauth(void *priv, u8 *addr, int reason_code)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
hostapd *hapd = drv->hapd;
|
||||
struct ieee80211req_mlme mlme;
|
||||
|
||||
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
|
||||
"%s: addr=%s reason_code=%d\n",
|
||||
__func__, ether_sprintf(addr), reason_code);
|
||||
|
||||
mlme.im_op = IEEE80211_MLME_DEAUTH;
|
||||
mlme.im_reason = reason_code;
|
||||
memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
|
||||
return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_sta_disassoc(void *priv, u8 *addr, int reason_code)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
hostapd *hapd = drv->hapd;
|
||||
struct ieee80211req_mlme mlme;
|
||||
|
||||
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
|
||||
"%s: addr=%s reason_code=%d\n",
|
||||
__func__, ether_sprintf(addr), reason_code);
|
||||
|
||||
mlme.im_reason = reason_code;
|
||||
memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
|
||||
return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_del_sta(struct bsd_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
|
||||
{
|
||||
struct hostapd_data *hapd = drv->hapd;
|
||||
struct hostapd_config *conf = hapd->conf;
|
||||
struct sta_info *sta;
|
||||
|
||||
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
|
||||
HOSTAPD_LEVEL_INFO, "deassociated");
|
||||
|
||||
sta = ap_get_sta(hapd, addr);
|
||||
if (sta != NULL) {
|
||||
sta->flags &= ~WLAN_STA_ASSOC;
|
||||
if (conf->wpa)
|
||||
wpa_sm_event(hapd, sta, WPA_DISASSOC);
|
||||
sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
|
||||
ieee802_1x_set_port_enabled(hapd, sta, 0);
|
||||
ap_free_sta(hapd, sta);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_new_sta(struct bsd_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
|
||||
{
|
||||
struct hostapd_data *hapd = drv->hapd;
|
||||
struct hostapd_config *conf = hapd->conf;
|
||||
struct sta_info *sta;
|
||||
struct ieee80211req_wpaie ie;
|
||||
int new_assoc, ielen, res;
|
||||
|
||||
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
|
||||
HOSTAPD_LEVEL_INFO, "associated");
|
||||
|
||||
sta = ap_sta_add(hapd, addr);
|
||||
if (sta == NULL)
|
||||
return -1;
|
||||
/*
|
||||
* Fetch and validate any negotiated WPA/RSN parameters.
|
||||
*/
|
||||
if (conf->wpa) {
|
||||
memset(&ie, 0, sizeof(ie));
|
||||
memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
|
||||
if (get80211var(drv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
|
||||
printf("Failed to get WPA/RSN information element.\n");
|
||||
return -1; /* XXX not right */
|
||||
}
|
||||
ielen = ie.wpa_ie[1];
|
||||
if (ielen == 0) {
|
||||
printf("No WPA/RSN information element for station!\n");
|
||||
return -1; /* XXX not right */
|
||||
}
|
||||
ielen += 2;
|
||||
res = wpa_validate_wpa_ie(hapd, sta, ie.wpa_ie, ielen,
|
||||
ie.wpa_ie[0] == WLAN_EID_RSN ?
|
||||
HOSTAPD_WPA_VERSION_WPA2 :
|
||||
HOSTAPD_WPA_VERSION_WPA);
|
||||
if (res != WPA_IE_OK) {
|
||||
printf("WPA/RSN information element rejected? "
|
||||
"(res %u)\n", res);
|
||||
return -1;
|
||||
}
|
||||
if (sta->wpa_ie != NULL)
|
||||
free(sta->wpa_ie);
|
||||
sta->wpa_ie = malloc(ielen);
|
||||
if (sta->wpa_ie == NULL) {
|
||||
printf("No memory for WPA/RSN information element!\n");
|
||||
return -1;
|
||||
}
|
||||
memcpy(sta->wpa_ie, ie.wpa_ie, ielen);
|
||||
sta->wpa_ie_len = ielen;
|
||||
} else {
|
||||
if (sta->wpa_ie != NULL)
|
||||
free(sta->wpa_ie);
|
||||
sta->wpa_ie = NULL;
|
||||
sta->wpa_ie_len = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Now that the internal station state is setup
|
||||
* kick the authenticator into action.
|
||||
*/
|
||||
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
|
||||
sta->flags |= WLAN_STA_ASSOC;
|
||||
if (new_assoc) {
|
||||
if (conf->wpa)
|
||||
wpa_sm_event(hapd, sta, WPA_ASSOC);
|
||||
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
|
||||
} else {
|
||||
if (conf->wpa)
|
||||
wpa_sm_event(hapd, sta, WPA_REAUTH);
|
||||
}
|
||||
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#include <net/route.h>
|
||||
#include <net80211/ieee80211_netbsd.h>
|
||||
|
||||
static void
|
||||
bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
|
||||
{
|
||||
struct bsd_driver_data *drv = ctx;
|
||||
struct hostapd_data *hapd = drv->hapd;
|
||||
char buf[2048];
|
||||
struct if_announcemsghdr *ifan;
|
||||
struct rt_msghdr *rtm;
|
||||
struct ieee80211_michael_event *mic;
|
||||
struct ieee80211_join_event *join;
|
||||
struct ieee80211_leave_event *leave;
|
||||
int n;
|
||||
|
||||
n = read(sock, buf, sizeof(buf));
|
||||
if (n < 0) {
|
||||
if (errno != EINTR && errno != EAGAIN)
|
||||
perror("read(PF_ROUTE)");
|
||||
return;
|
||||
}
|
||||
|
||||
rtm = (struct rt_msghdr *) buf;
|
||||
if (rtm->rtm_version != RTM_VERSION) {
|
||||
wpa_printf(MSG_DEBUG, "Routing message version %d not "
|
||||
"understood\n", rtm->rtm_version);
|
||||
return;
|
||||
}
|
||||
ifan = (struct if_announcemsghdr *) rtm;
|
||||
switch (rtm->rtm_type) {
|
||||
case RTM_IEEE80211:
|
||||
switch (ifan->ifan_what) {
|
||||
case RTM_IEEE80211_ASSOC:
|
||||
case RTM_IEEE80211_REASSOC:
|
||||
case RTM_IEEE80211_DISASSOC:
|
||||
case RTM_IEEE80211_SCAN:
|
||||
break;
|
||||
case RTM_IEEE80211_LEAVE:
|
||||
leave = (struct ieee80211_leave_event *) &ifan[1];
|
||||
bsd_del_sta(drv, leave->iev_addr);
|
||||
break;
|
||||
case RTM_IEEE80211_JOIN:
|
||||
#ifdef RTM_IEEE80211_REJOIN
|
||||
case RTM_IEEE80211_REJOIN:
|
||||
#endif
|
||||
join = (struct ieee80211_join_event *) &ifan[1];
|
||||
bsd_new_sta(drv, join->iev_addr);
|
||||
break;
|
||||
case RTM_IEEE80211_REPLAY:
|
||||
/* ignore */
|
||||
break;
|
||||
case RTM_IEEE80211_MICHAEL:
|
||||
mic = (struct ieee80211_michael_event *) &ifan[1];
|
||||
wpa_printf(MSG_DEBUG,
|
||||
"Michael MIC failure wireless event: "
|
||||
"keyix=%u src_addr=" MACSTR, mic->iev_keyix,
|
||||
MAC2STR(mic->iev_src));
|
||||
ieee80211_michael_mic_failure(hapd, mic->iev_src, 1);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_wireless_event_init(void *priv)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
int s;
|
||||
|
||||
drv->wext_sock = -1;
|
||||
|
||||
s = socket(PF_ROUTE, SOCK_RAW, 0);
|
||||
if (s < 0) {
|
||||
perror("socket(PF_ROUTE,SOCK_RAW)");
|
||||
return -1;
|
||||
}
|
||||
eloop_register_read_sock(s, bsd_wireless_event_receive, drv, NULL);
|
||||
drv->wext_sock = s;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
bsd_wireless_event_deinit(void *priv)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
|
||||
if (drv != NULL) {
|
||||
if (drv->wext_sock < 0)
|
||||
return;
|
||||
eloop_unregister_read_sock(drv->wext_sock);
|
||||
close(drv->wext_sock);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
bsd_send_eapol(void *priv, u8 *addr, u8 *data, size_t data_len, int encrypt)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
hostapd *hapd = drv->hapd;
|
||||
unsigned char buf[3000];
|
||||
unsigned char *bp = buf;
|
||||
struct l2_ethhdr *eth;
|
||||
size_t len;
|
||||
int status;
|
||||
|
||||
/*
|
||||
* Prepend the Etherent header. If the caller left us
|
||||
* space at the front we could just insert it but since
|
||||
* we don't know we copy to a local buffer. Given the frequency
|
||||
* and size of frames this probably doesn't matter.
|
||||
*/
|
||||
len = data_len + sizeof(struct l2_ethhdr);
|
||||
if (len > sizeof(buf)) {
|
||||
bp = malloc(len);
|
||||
if (bp == NULL) {
|
||||
printf("EAPOL frame discarded, cannot malloc temp "
|
||||
"buffer of size %u!\n", len);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
eth = (struct l2_ethhdr *) bp;
|
||||
memcpy(eth->h_dest, addr, ETH_ALEN);
|
||||
memcpy(eth->h_source, drv->hapd->own_addr, ETH_ALEN);
|
||||
eth->h_proto = htons(ETH_P_EAPOL);
|
||||
memcpy(eth+1, data, data_len);
|
||||
|
||||
if (HOSTAPD_DEBUG_COND(HOSTAPD_DEBUG_MSGDUMPS))
|
||||
hostapd_hexdump("TX EAPOL", bp, len);
|
||||
|
||||
status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
|
||||
|
||||
if (bp != buf)
|
||||
free(bp);
|
||||
return status;
|
||||
}
|
||||
|
||||
static void
|
||||
handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
|
||||
{
|
||||
struct bsd_driver_data *drv = ctx;
|
||||
hostapd *hapd = drv->hapd;
|
||||
struct sta_info *sta;
|
||||
|
||||
sta = ap_get_sta(hapd, src_addr);
|
||||
if (!sta || !(sta->flags & WLAN_STA_ASSOC)) {
|
||||
printf("Data frame from not associated STA %s\n",
|
||||
ether_sprintf(src_addr));
|
||||
/* XXX cannot happen */
|
||||
return;
|
||||
}
|
||||
ieee802_1x_receive(hapd, src_addr, buf + sizeof(struct l2_ethhdr),
|
||||
len - sizeof(struct l2_ethhdr));
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_get_ssid(void *priv, u8 *buf, int len)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
hostapd *hapd = drv->hapd;
|
||||
struct ieee80211_nwid nwid;
|
||||
struct ifreq ifr;
|
||||
|
||||
memset(&ifr, 0, sizeof(ifr));
|
||||
strncpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
|
||||
ifr.ifr_data = (void *)&nwid;
|
||||
if (ioctl(drv->ioctl_sock, SIOCG80211NWID, &ifr) < 0 ||
|
||||
nwid.i_len > IEEE80211_NWID_LEN)
|
||||
return -1;
|
||||
memcpy(buf, nwid.i_nwid, nwid.i_len);
|
||||
|
||||
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "%s: ssid=\"%.*s\"\n",
|
||||
__func__, nwid.i_len, buf);
|
||||
|
||||
return nwid.i_len;
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_set_ssid(void *priv, u8 *buf, int len)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
hostapd *hapd = drv->hapd;
|
||||
struct ieee80211_nwid nwid;
|
||||
struct ifreq ifr;
|
||||
|
||||
memcpy(nwid.i_nwid, buf, len);
|
||||
nwid.i_len = len;
|
||||
memset(&ifr, 0, sizeof(ifr));
|
||||
(void)strncpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
|
||||
ifr.ifr_data = (void *)&nwid;
|
||||
|
||||
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "%s: ssid=\"%.*s\"\n",
|
||||
__func__, len, buf);
|
||||
|
||||
return ioctl(drv->ioctl_sock, SIOCS80211NWID, &ifr);
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_set_countermeasures(void *priv, int enabled)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
|
||||
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
|
||||
return set80211param(drv, IEEE80211_IOC_COUNTERMEASURES, enabled);
|
||||
}
|
||||
|
||||
static int
|
||||
bsd_init(struct hostapd_data *hapd)
|
||||
{
|
||||
struct bsd_driver_data *drv;
|
||||
|
||||
drv = malloc(sizeof(struct bsd_driver_data));
|
||||
if (drv == NULL) {
|
||||
printf("Could not allocate memory for bsd driver data\n");
|
||||
goto bad;
|
||||
}
|
||||
|
||||
memset(drv, 0, sizeof(*drv));
|
||||
drv->ops = bsd_driver_ops;
|
||||
drv->hapd = hapd;
|
||||
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
|
||||
if (drv->ioctl_sock < 0) {
|
||||
perror("socket[PF_INET,SOCK_DGRAM]");
|
||||
goto bad;
|
||||
}
|
||||
memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
|
||||
|
||||
drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
|
||||
handle_read, drv, 1);
|
||||
if (drv->sock_xmit == NULL)
|
||||
goto bad;
|
||||
if (l2_packet_get_own_addr(drv->sock_xmit, hapd->own_addr))
|
||||
goto bad;
|
||||
|
||||
bsd_set_iface_flags(drv, 0); /* mark down during setup */
|
||||
|
||||
hapd->driver = &drv->ops;
|
||||
return 0;
|
||||
bad:
|
||||
if (drv->sock_xmit != NULL)
|
||||
l2_packet_deinit(drv->sock_xmit);
|
||||
if (drv->ioctl_sock >= 0)
|
||||
close(drv->ioctl_sock);
|
||||
if (drv != NULL)
|
||||
free(drv);
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
bsd_deinit(void *priv)
|
||||
{
|
||||
struct bsd_driver_data *drv = priv;
|
||||
|
||||
drv->hapd->driver = NULL;
|
||||
|
||||
(void) bsd_set_iface_flags(drv, 0);
|
||||
if (drv->ioctl_sock >= 0)
|
||||
close(drv->ioctl_sock);
|
||||
if (drv->sock_xmit != NULL)
|
||||
l2_packet_deinit(drv->sock_xmit);
|
||||
free(drv);
|
||||
}
|
||||
|
||||
static const struct driver_ops bsd_driver_ops = {
|
||||
.name = "bsd",
|
||||
.init = bsd_init,
|
||||
.deinit = bsd_deinit,
|
||||
.set_ieee8021x = bsd_set_ieee8021x,
|
||||
.set_privacy = bsd_set_privacy,
|
||||
.set_encryption = bsd_set_key,
|
||||
.get_seqnum = bsd_get_seqnum,
|
||||
.flush = bsd_flush,
|
||||
.set_generic_elem = bsd_set_opt_ie,
|
||||
.wireless_event_init = bsd_wireless_event_init,
|
||||
.wireless_event_deinit = bsd_wireless_event_deinit,
|
||||
.set_sta_authorized = bsd_set_sta_authorized,
|
||||
.read_sta_data = bsd_read_sta_driver_data,
|
||||
.send_eapol = bsd_send_eapol,
|
||||
.sta_disassoc = bsd_sta_disassoc,
|
||||
.sta_deauth = bsd_sta_deauth,
|
||||
.set_ssid = bsd_set_ssid,
|
||||
.get_ssid = bsd_get_ssid,
|
||||
.set_countermeasures = bsd_set_countermeasures,
|
||||
.sta_clear_stats = bsd_sta_clear_stats,
|
||||
};
|
||||
|
||||
void bsd_driver_register(void)
|
||||
{
|
||||
driver_register(bsd_driver_ops.name, &bsd_driver_ops);
|
||||
}
|
||||
Loading…
Reference in New Issue