hostap/hostapd/driver_test.c
2009-01-12 22:08:53 +02:00

1226 lines
30 KiB
C

/*
* hostapd / Driver interface for development testing
* Copyright (c) 2004-2008, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "includes.h"
#include <sys/un.h>
#include <dirent.h>
#include "hostapd.h"
#include "driver.h"
#include "sha1.h"
#include "eloop.h"
#include "wpa.h"
#include "l2_packet/l2_packet.h"
#include "hw_features.h"
#include "wps_hostapd.h"
#include "ieee802_11_defs.h"
struct test_client_socket {
struct test_client_socket *next;
u8 addr[ETH_ALEN];
struct sockaddr_un un;
socklen_t unlen;
struct test_driver_bss *bss;
};
struct test_driver_bss {
struct test_driver_bss *next;
char ifname[IFNAMSIZ + 1];
u8 bssid[ETH_ALEN];
u8 *ie;
size_t ielen;
u8 *wps_beacon_ie;
size_t wps_beacon_ie_len;
u8 *wps_probe_resp_ie;
size_t wps_probe_resp_ie_len;
u8 ssid[32];
size_t ssid_len;
int privacy;
};
struct test_driver_data {
struct hostapd_data *hapd;
struct test_client_socket *cli;
int test_socket;
struct test_driver_bss *bss;
char *socket_dir;
char *own_socket_path;
int udp_port;
};
static void test_driver_free_bss(struct test_driver_bss *bss)
{
free(bss->ie);
free(bss->wps_beacon_ie);
free(bss->wps_probe_resp_ie);
free(bss);
}
static void test_driver_free_priv(struct test_driver_data *drv)
{
struct test_driver_bss *bss, *prev;
if (drv == NULL)
return;
bss = drv->bss;
while (bss) {
prev = bss;
bss = bss->next;
test_driver_free_bss(prev);
}
free(drv->own_socket_path);
free(drv->socket_dir);
free(drv);
}
static struct test_client_socket *
test_driver_get_cli(struct test_driver_data *drv, struct sockaddr_un *from,
socklen_t fromlen)
{
struct test_client_socket *cli = drv->cli;
while (cli) {
if (cli->unlen == fromlen &&
strncmp(cli->un.sun_path, from->sun_path,
fromlen - sizeof(cli->un.sun_family)) == 0)
return cli;
cli = cli->next;
}
return NULL;
}
static int test_driver_send_eapol(void *priv, const u8 *addr, const u8 *data,
size_t data_len, int encrypt,
const u8 *own_addr)
{
struct test_driver_data *drv = priv;
struct test_client_socket *cli;
struct msghdr msg;
struct iovec io[3];
struct l2_ethhdr eth;
if (drv->test_socket < 0)
return -1;
cli = drv->cli;
while (cli) {
if (memcmp(cli->addr, addr, ETH_ALEN) == 0)
break;
cli = cli->next;
}
if (!cli) {
wpa_printf(MSG_DEBUG, "%s: no destination client entry",
__func__);
return -1;
}
memcpy(eth.h_dest, addr, ETH_ALEN);
memcpy(eth.h_source, own_addr, ETH_ALEN);
eth.h_proto = host_to_be16(ETH_P_EAPOL);
io[0].iov_base = "EAPOL ";
io[0].iov_len = 6;
io[1].iov_base = &eth;
io[1].iov_len = sizeof(eth);
io[2].iov_base = (u8 *) data;
io[2].iov_len = data_len;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = io;
msg.msg_iovlen = 3;
msg.msg_name = &cli->un;
msg.msg_namelen = cli->unlen;
return sendmsg(drv->test_socket, &msg, 0);
}
static int test_driver_send_ether(void *priv, const u8 *dst, const u8 *src,
u16 proto, const u8 *data, size_t data_len)
{
struct test_driver_data *drv = priv;
struct msghdr msg;
struct iovec io[3];
struct l2_ethhdr eth;
char desttxt[30];
struct sockaddr_un addr;
struct dirent *dent;
DIR *dir;
int ret = 0, broadcast = 0, count = 0;
if (drv->test_socket < 0 || drv->socket_dir == NULL) {
wpa_printf(MSG_DEBUG, "%s: invalid parameters (sock=%d "
"socket_dir=%p)",
__func__, drv->test_socket, drv->socket_dir);
return -1;
}
broadcast = memcmp(dst, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0;
snprintf(desttxt, sizeof(desttxt), MACSTR, MAC2STR(dst));
memcpy(eth.h_dest, dst, ETH_ALEN);
memcpy(eth.h_source, src, ETH_ALEN);
eth.h_proto = host_to_be16(proto);
io[0].iov_base = "ETHER ";
io[0].iov_len = 6;
io[1].iov_base = &eth;
io[1].iov_len = sizeof(eth);
io[2].iov_base = (u8 *) data;
io[2].iov_len = data_len;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = io;
msg.msg_iovlen = 3;
dir = opendir(drv->socket_dir);
if (dir == NULL) {
perror("test_driver: opendir");
return -1;
}
while ((dent = readdir(dir))) {
#ifdef _DIRENT_HAVE_D_TYPE
/* Skip the file if it is not a socket. Also accept
* DT_UNKNOWN (0) in case the C library or underlying file
* system does not support d_type. */
if (dent->d_type != DT_SOCK && dent->d_type != DT_UNKNOWN)
continue;
#endif /* _DIRENT_HAVE_D_TYPE */
if (strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0)
continue;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
snprintf(addr.sun_path, sizeof(addr.sun_path), "%s/%s",
drv->socket_dir, dent->d_name);
if (strcmp(addr.sun_path, drv->own_socket_path) == 0)
continue;
if (!broadcast && strstr(dent->d_name, desttxt) == NULL)
continue;
wpa_printf(MSG_DEBUG, "%s: Send ether frame to %s",
__func__, dent->d_name);
msg.msg_name = &addr;
msg.msg_namelen = sizeof(addr);
ret = sendmsg(drv->test_socket, &msg, 0);
if (ret < 0)
perror("driver_test: sendmsg");
count++;
}
closedir(dir);
if (!broadcast && count == 0) {
wpa_printf(MSG_DEBUG, "%s: Destination " MACSTR " not found",
__func__, MAC2STR(dst));
return -1;
}
return ret;
}
static int test_driver_send_mgmt_frame(void *priv, const void *buf,
size_t len, int flags)
{
struct test_driver_data *drv = priv;
struct msghdr msg;
struct iovec io[2];
const u8 *dest;
int ret = 0, broadcast = 0;
char desttxt[30];
struct sockaddr_un addr;
struct dirent *dent;
DIR *dir;
struct ieee80211_hdr *hdr;
u16 fc;
if (drv->test_socket < 0 || len < 10 || drv->socket_dir == NULL) {
wpa_printf(MSG_DEBUG, "%s: invalid parameters (sock=%d len=%lu"
" socket_dir=%p)",
__func__, drv->test_socket, (unsigned long) len,
drv->socket_dir);
return -1;
}
dest = buf;
dest += 4;
broadcast = memcmp(dest, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0;
snprintf(desttxt, sizeof(desttxt), MACSTR, MAC2STR(dest));
io[0].iov_base = "MLME ";
io[0].iov_len = 5;
io[1].iov_base = (void *) buf;
io[1].iov_len = len;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = io;
msg.msg_iovlen = 2;
dir = opendir(drv->socket_dir);
if (dir == NULL) {
perror("test_driver: opendir");
return -1;
}
while ((dent = readdir(dir))) {
#ifdef _DIRENT_HAVE_D_TYPE
/* Skip the file if it is not a socket. Also accept
* DT_UNKNOWN (0) in case the C library or underlying file
* system does not support d_type. */
if (dent->d_type != DT_SOCK && dent->d_type != DT_UNKNOWN)
continue;
#endif /* _DIRENT_HAVE_D_TYPE */
if (strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0)
continue;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
snprintf(addr.sun_path, sizeof(addr.sun_path), "%s/%s",
drv->socket_dir, dent->d_name);
if (strcmp(addr.sun_path, drv->own_socket_path) == 0)
continue;
if (!broadcast && strstr(dent->d_name, desttxt) == NULL)
continue;
wpa_printf(MSG_DEBUG, "%s: Send management frame to %s",
__func__, dent->d_name);
msg.msg_name = &addr;
msg.msg_namelen = sizeof(addr);
ret = sendmsg(drv->test_socket, &msg, 0);
if (ret < 0)
perror("driver_test: sendmsg");
}
closedir(dir);
hdr = (struct ieee80211_hdr *) buf;
fc = le_to_host16(hdr->frame_control);
hostapd_mgmt_tx_cb(drv->hapd, (u8 *) buf, len, WLAN_FC_GET_STYPE(fc),
ret >= 0);
return ret;
}
static void test_driver_scan(struct test_driver_data *drv,
struct sockaddr_un *from, socklen_t fromlen,
char *data)
{
char buf[512], *pos, *end;
int ret;
struct test_driver_bss *bss;
u8 sa[ETH_ALEN];
u8 ie[512];
size_t ielen;
/* data: optional [ ' ' | STA-addr | ' ' | IEs(hex) ] */
wpa_printf(MSG_DEBUG, "test_driver: SCAN");
if (*data) {
if (*data != ' ' ||
hwaddr_aton(data + 1, sa)) {
wpa_printf(MSG_DEBUG, "test_driver: Unexpected SCAN "
"command format");
return;
}
data += 18;
while (*data == ' ')
data++;
ielen = os_strlen(data) / 2;
if (ielen > sizeof(ie))
ielen = sizeof(ie);
if (hexstr2bin(data, ie, ielen) < 0)
ielen = 0;
wpa_printf(MSG_DEBUG, "test_driver: Scan from " MACSTR,
MAC2STR(sa));
wpa_hexdump(MSG_MSGDUMP, "test_driver: scan IEs", ie, ielen);
hostapd_wps_probe_req_rx(drv->hapd, sa, ie, ielen);
}
for (bss = drv->bss; bss; bss = bss->next) {
pos = buf;
end = buf + sizeof(buf);
/* reply: SCANRESP BSSID SSID IEs */
ret = snprintf(pos, end - pos, "SCANRESP " MACSTR " ",
MAC2STR(bss->bssid));
if (ret < 0 || ret >= end - pos)
return;
pos += ret;
pos += wpa_snprintf_hex(pos, end - pos,
bss->ssid, bss->ssid_len);
ret = snprintf(pos, end - pos, " ");
if (ret < 0 || ret >= end - pos)
return;
pos += ret;
pos += wpa_snprintf_hex(pos, end - pos, bss->ie, bss->ielen);
pos += wpa_snprintf_hex(pos, end - pos, bss->wps_probe_resp_ie,
bss->wps_probe_resp_ie_len);
if (bss->privacy) {
ret = snprintf(pos, end - pos, " PRIVACY");
if (ret < 0 || ret >= end - pos)
return;
pos += ret;
}
sendto(drv->test_socket, buf, pos - buf, 0,
(struct sockaddr *) from, fromlen);
}
}
static struct hostapd_data * test_driver_get_hapd(struct test_driver_data *drv,
struct test_driver_bss *bss)
{
struct hostapd_iface *iface = drv->hapd->iface;
struct hostapd_data *hapd = NULL;
size_t i;
if (bss == NULL) {
wpa_printf(MSG_DEBUG, "%s: bss == NULL", __func__);
return NULL;
}
for (i = 0; i < iface->num_bss; i++) {
hapd = iface->bss[i];
if (memcmp(hapd->own_addr, bss->bssid, ETH_ALEN) == 0)
break;
}
if (i == iface->num_bss) {
wpa_printf(MSG_DEBUG, "%s: no matching interface entry found "
"for BSSID " MACSTR, __func__, MAC2STR(bss->bssid));
return NULL;
}
return hapd;
}
static int test_driver_new_sta(struct test_driver_data *drv,
struct test_driver_bss *bss, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct hostapd_data *hapd;
hapd = test_driver_get_hapd(drv, bss);
if (hapd == NULL)
return -1;
return hostapd_notif_assoc(hapd, addr, ie, ielen);
}
static void test_driver_assoc(struct test_driver_data *drv,
struct sockaddr_un *from, socklen_t fromlen,
char *data)
{
struct test_client_socket *cli;
u8 ie[256], ssid[32];
size_t ielen, ssid_len = 0;
char *pos, *pos2, cmd[50];
struct test_driver_bss *bss;
/* data: STA-addr SSID(hex) IEs(hex) */
cli = os_zalloc(sizeof(*cli));
if (cli == NULL)
return;
if (hwaddr_aton(data, cli->addr)) {
printf("test_socket: Invalid MAC address '%s' in ASSOC\n",
data);
free(cli);
return;
}
pos = data + 17;
while (*pos == ' ')
pos++;
pos2 = strchr(pos, ' ');
ielen = 0;
if (pos2) {
ssid_len = (pos2 - pos) / 2;
if (hexstr2bin(pos, ssid, ssid_len) < 0) {
wpa_printf(MSG_DEBUG, "%s: Invalid SSID", __func__);
free(cli);
return;
}
wpa_hexdump_ascii(MSG_DEBUG, "test_driver_assoc: SSID",
ssid, ssid_len);
pos = pos2 + 1;
ielen = strlen(pos) / 2;
if (ielen > sizeof(ie))
ielen = sizeof(ie);
if (hexstr2bin(pos, ie, ielen) < 0)
ielen = 0;
}
for (bss = drv->bss; bss; bss = bss->next) {
if (bss->ssid_len == ssid_len &&
memcmp(bss->ssid, ssid, ssid_len) == 0)
break;
}
if (bss == NULL) {
wpa_printf(MSG_DEBUG, "%s: No matching SSID found from "
"configured BSSes", __func__);
free(cli);
return;
}
cli->bss = bss;
memcpy(&cli->un, from, sizeof(cli->un));
cli->unlen = fromlen;
cli->next = drv->cli;
drv->cli = cli;
wpa_hexdump_ascii(MSG_DEBUG, "test_socket: ASSOC sun_path",
(const u8 *) cli->un.sun_path,
cli->unlen - sizeof(cli->un.sun_family));
snprintf(cmd, sizeof(cmd), "ASSOCRESP " MACSTR " 0",
MAC2STR(bss->bssid));
sendto(drv->test_socket, cmd, strlen(cmd), 0,
(struct sockaddr *) from, fromlen);
if (test_driver_new_sta(drv, bss, cli->addr, ie, ielen) < 0) {
wpa_printf(MSG_DEBUG, "test_driver: failed to add new STA");
}
}
static void test_driver_disassoc(struct test_driver_data *drv,
struct sockaddr_un *from, socklen_t fromlen)
{
struct test_client_socket *cli;
cli = test_driver_get_cli(drv, from, fromlen);
if (!cli)
return;
hostapd_notif_disassoc(drv->hapd, cli->addr);
}
static void test_driver_eapol(struct test_driver_data *drv,
struct sockaddr_un *from, socklen_t fromlen,
u8 *data, size_t datalen)
{
struct test_client_socket *cli;
if (datalen > 14) {
/* Skip Ethernet header */
wpa_printf(MSG_DEBUG, "test_driver: dst=" MACSTR " src="
MACSTR " proto=%04x",
MAC2STR(data), MAC2STR(data + ETH_ALEN),
WPA_GET_BE16(data + 2 * ETH_ALEN));
data += 14;
datalen -= 14;
}
cli = test_driver_get_cli(drv, from, fromlen);
if (cli) {
struct hostapd_data *hapd;
hapd = test_driver_get_hapd(drv, cli->bss);
if (hapd == NULL)
return;
hostapd_eapol_receive(hapd, cli->addr, data, datalen);
} else {
wpa_printf(MSG_DEBUG, "test_socket: EAPOL from unknown "
"client");
}
}
static void test_driver_ether(struct test_driver_data *drv,
struct sockaddr_un *from, socklen_t fromlen,
u8 *data, size_t datalen)
{
struct l2_ethhdr *eth;
if (datalen < sizeof(*eth))
return;
eth = (struct l2_ethhdr *) data;
wpa_printf(MSG_DEBUG, "test_driver: RX ETHER dst=" MACSTR " src="
MACSTR " proto=%04x",
MAC2STR(eth->h_dest), MAC2STR(eth->h_source),
be_to_host16(eth->h_proto));
#ifdef CONFIG_IEEE80211R
if (be_to_host16(eth->h_proto) == ETH_P_RRB) {
wpa_ft_rrb_rx(drv->hapd->wpa_auth, eth->h_source,
data + sizeof(*eth), datalen - sizeof(*eth));
}
#endif /* CONFIG_IEEE80211R */
}
static void test_driver_mlme(struct test_driver_data *drv,
struct sockaddr_un *from, socklen_t fromlen,
u8 *data, size_t datalen)
{
struct ieee80211_hdr *hdr;
u16 fc;
hdr = (struct ieee80211_hdr *) data;
if (test_driver_get_cli(drv, from, fromlen) == NULL && datalen >= 16) {
struct test_client_socket *cli;
cli = os_zalloc(sizeof(*cli));
if (cli == NULL)
return;
wpa_printf(MSG_DEBUG, "Adding client entry for " MACSTR,
MAC2STR(hdr->addr2));
memcpy(cli->addr, hdr->addr2, ETH_ALEN);
memcpy(&cli->un, from, sizeof(cli->un));
cli->unlen = fromlen;
cli->next = drv->cli;
drv->cli = cli;
}
wpa_hexdump(MSG_MSGDUMP, "test_driver_mlme: received frame",
data, datalen);
fc = le_to_host16(hdr->frame_control);
if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT) {
wpa_printf(MSG_ERROR, "%s: received non-mgmt frame",
__func__);
return;
}
hostapd_mgmt_rx(drv->hapd, data, datalen, WLAN_FC_GET_STYPE(fc), NULL);
}
static void test_driver_receive_unix(int sock, void *eloop_ctx, void *sock_ctx)
{
struct test_driver_data *drv = eloop_ctx;
char buf[2000];
int res;
struct sockaddr_un from;
socklen_t fromlen = sizeof(from);
res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
(struct sockaddr *) &from, &fromlen);
if (res < 0) {
perror("recvfrom(test_socket)");
return;
}
buf[res] = '\0';
wpa_printf(MSG_DEBUG, "test_driver: received %u bytes", res);
if (strncmp(buf, "SCAN", 4) == 0) {
test_driver_scan(drv, &from, fromlen, buf + 4);
} else if (strncmp(buf, "ASSOC ", 6) == 0) {
test_driver_assoc(drv, &from, fromlen, buf + 6);
} else if (strcmp(buf, "DISASSOC") == 0) {
test_driver_disassoc(drv, &from, fromlen);
} else if (strncmp(buf, "EAPOL ", 6) == 0) {
test_driver_eapol(drv, &from, fromlen, (u8 *) buf + 6,
res - 6);
} else if (strncmp(buf, "ETHER ", 6) == 0) {
test_driver_ether(drv, &from, fromlen, (u8 *) buf + 6,
res - 6);
} else if (strncmp(buf, "MLME ", 5) == 0) {
test_driver_mlme(drv, &from, fromlen, (u8 *) buf + 5, res - 5);
} else {
wpa_hexdump_ascii(MSG_DEBUG, "Unknown test_socket command",
(u8 *) buf, res);
}
}
static struct test_driver_bss *
test_driver_get_bss(struct test_driver_data *drv, const char *ifname)
{
struct test_driver_bss *bss;
for (bss = drv->bss; bss; bss = bss->next) {
if (strcmp(bss->ifname, ifname) == 0)
return bss;
}
return NULL;
}
static int test_driver_set_generic_elem(const char *ifname, void *priv,
const u8 *elem, size_t elem_len)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss;
bss = test_driver_get_bss(drv, ifname);
if (bss == NULL)
return -1;
free(bss->ie);
if (elem == NULL) {
bss->ie = NULL;
bss->ielen = 0;
return 0;
}
bss->ie = malloc(elem_len);
if (bss->ie == NULL) {
bss->ielen = 0;
return -1;
}
memcpy(bss->ie, elem, elem_len);
bss->ielen = elem_len;
return 0;
}
static int test_driver_set_wps_beacon_ie(const char *ifname, void *priv,
const u8 *ie, size_t len)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss;
wpa_hexdump(MSG_DEBUG, "test_driver: Beacon WPS IE", ie, len);
bss = test_driver_get_bss(drv, ifname);
if (bss == NULL)
return -1;
free(bss->wps_beacon_ie);
if (ie == NULL) {
bss->wps_beacon_ie = NULL;
bss->wps_beacon_ie_len = 0;
return 0;
}
bss->wps_beacon_ie = malloc(len);
if (bss->wps_beacon_ie == NULL) {
bss->wps_beacon_ie_len = 0;
return -1;
}
memcpy(bss->wps_beacon_ie, ie, len);
bss->wps_beacon_ie_len = len;
return 0;
}
static int test_driver_set_wps_probe_resp_ie(const char *ifname, void *priv,
const u8 *ie, size_t len)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss;
wpa_hexdump(MSG_DEBUG, "test_driver: ProbeResp WPS IE", ie, len);
bss = test_driver_get_bss(drv, ifname);
if (bss == NULL)
return -1;
free(bss->wps_probe_resp_ie);
if (ie == NULL) {
bss->wps_probe_resp_ie = NULL;
bss->wps_probe_resp_ie_len = 0;
return 0;
}
bss->wps_probe_resp_ie = malloc(len);
if (bss->wps_probe_resp_ie == NULL) {
bss->wps_probe_resp_ie_len = 0;
return -1;
}
memcpy(bss->wps_probe_resp_ie, ie, len);
bss->wps_probe_resp_ie_len = len;
return 0;
}
static int test_driver_sta_deauth(void *priv, const u8 *addr, int reason)
{
struct test_driver_data *drv = priv;
struct test_client_socket *cli;
if (drv->test_socket < 0)
return -1;
cli = drv->cli;
while (cli) {
if (memcmp(cli->addr, addr, ETH_ALEN) == 0)
break;
cli = cli->next;
}
if (!cli)
return -1;
return sendto(drv->test_socket, "DEAUTH", 6, 0,
(struct sockaddr *) &cli->un, cli->unlen);
}
static int test_driver_sta_disassoc(void *priv, const u8 *addr, int reason)
{
struct test_driver_data *drv = priv;
struct test_client_socket *cli;
if (drv->test_socket < 0)
return -1;
cli = drv->cli;
while (cli) {
if (memcmp(cli->addr, addr, ETH_ALEN) == 0)
break;
cli = cli->next;
}
if (!cli)
return -1;
return sendto(drv->test_socket, "DISASSOC", 8, 0,
(struct sockaddr *) &cli->un, cli->unlen);
}
static struct hostapd_hw_modes *
test_driver_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
{
struct hostapd_hw_modes *modes;
*num_modes = 3;
*flags = 0;
modes = os_zalloc(*num_modes * sizeof(struct hostapd_hw_modes));
if (modes == NULL)
return NULL;
modes[0].mode = HOSTAPD_MODE_IEEE80211G;
modes[0].num_channels = 1;
modes[0].num_rates = 1;
modes[0].channels = os_zalloc(sizeof(struct hostapd_channel_data));
modes[0].rates = os_zalloc(sizeof(struct hostapd_rate_data));
if (modes[0].channels == NULL || modes[0].rates == NULL) {
hostapd_free_hw_features(modes, *num_modes);
return NULL;
}
modes[0].channels[0].chan = 1;
modes[0].channels[0].freq = 2412;
modes[0].channels[0].flag = 0;
modes[0].rates[0].rate = 10;
modes[0].rates[0].flags = HOSTAPD_RATE_BASIC | HOSTAPD_RATE_SUPPORTED |
HOSTAPD_RATE_CCK | HOSTAPD_RATE_MANDATORY;
modes[1].mode = HOSTAPD_MODE_IEEE80211B;
modes[1].num_channels = 1;
modes[1].num_rates = 1;
modes[1].channels = os_zalloc(sizeof(struct hostapd_channel_data));
modes[1].rates = os_zalloc(sizeof(struct hostapd_rate_data));
if (modes[1].channels == NULL || modes[1].rates == NULL) {
hostapd_free_hw_features(modes, *num_modes);
return NULL;
}
modes[1].channels[0].chan = 1;
modes[1].channels[0].freq = 2412;
modes[1].channels[0].flag = 0;
modes[1].rates[0].rate = 10;
modes[1].rates[0].flags = HOSTAPD_RATE_BASIC | HOSTAPD_RATE_SUPPORTED |
HOSTAPD_RATE_CCK | HOSTAPD_RATE_MANDATORY;
modes[2].mode = HOSTAPD_MODE_IEEE80211A;
modes[2].num_channels = 1;
modes[2].num_rates = 1;
modes[2].channels = os_zalloc(sizeof(struct hostapd_channel_data));
modes[2].rates = os_zalloc(sizeof(struct hostapd_rate_data));
if (modes[2].channels == NULL || modes[2].rates == NULL) {
hostapd_free_hw_features(modes, *num_modes);
return NULL;
}
modes[2].channels[0].chan = 60;
modes[2].channels[0].freq = 5300;
modes[2].channels[0].flag = 0;
modes[2].rates[0].rate = 60;
modes[2].rates[0].flags = HOSTAPD_RATE_BASIC | HOSTAPD_RATE_SUPPORTED |
HOSTAPD_RATE_MANDATORY;
return modes;
}
static int test_driver_bss_add(void *priv, const char *ifname, const u8 *bssid)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss;
wpa_printf(MSG_DEBUG, "%s(ifname=%s bssid=" MACSTR ")",
__func__, ifname, MAC2STR(bssid));
bss = os_zalloc(sizeof(*bss));
if (bss == NULL)
return -1;
os_strlcpy(bss->ifname, ifname, IFNAMSIZ);
memcpy(bss->bssid, bssid, ETH_ALEN);
bss->next = drv->bss;
drv->bss = bss;
return 0;
}
static int test_driver_bss_remove(void *priv, const char *ifname)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss, *prev;
struct test_client_socket *cli, *prev_c;
wpa_printf(MSG_DEBUG, "%s(ifname=%s)", __func__, ifname);
for (prev = NULL, bss = drv->bss; bss; prev = bss, bss = bss->next) {
if (strcmp(bss->ifname, ifname) != 0)
continue;
if (prev)
prev->next = bss->next;
else
drv->bss = bss->next;
for (prev_c = NULL, cli = drv->cli; cli;
prev_c = cli, cli = cli->next) {
if (cli->bss != bss)
continue;
if (prev_c)
prev_c->next = cli->next;
else
drv->cli = cli->next;
free(cli);
break;
}
test_driver_free_bss(bss);
return 0;
}
return -1;
}
static int test_driver_if_add(const char *iface, void *priv,
enum hostapd_driver_if_type type, char *ifname,
const u8 *addr)
{
wpa_printf(MSG_DEBUG, "%s(iface=%s type=%d ifname=%s)",
__func__, iface, type, ifname);
return 0;
}
static int test_driver_if_update(void *priv, enum hostapd_driver_if_type type,
char *ifname, const u8 *addr)
{
wpa_printf(MSG_DEBUG, "%s(type=%d ifname=%s)", __func__, type, ifname);
return 0;
}
static int test_driver_if_remove(void *priv, enum hostapd_driver_if_type type,
const char *ifname, const u8 *addr)
{
wpa_printf(MSG_DEBUG, "%s(type=%d ifname=%s)", __func__, type, ifname);
return 0;
}
static int test_driver_valid_bss_mask(void *priv, const u8 *addr,
const u8 *mask)
{
return 0;
}
static int test_driver_set_ssid(const char *ifname, void *priv, const u8 *buf,
int len)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss;
wpa_printf(MSG_DEBUG, "%s(ifname=%s)", __func__, ifname);
wpa_hexdump_ascii(MSG_DEBUG, "test_driver_set_ssid: SSID", buf, len);
for (bss = drv->bss; bss; bss = bss->next) {
if (strcmp(bss->ifname, ifname) != 0)
continue;
if (len < 0 || (size_t) len > sizeof(bss->ssid))
return -1;
memcpy(bss->ssid, buf, len);
bss->ssid_len = len;
return 0;
}
return -1;
}
static int test_driver_set_privacy(const char *ifname, void *priv, int enabled)
{
struct test_driver_data *drv = priv;
struct test_driver_bss *bss;
wpa_printf(MSG_DEBUG, "%s(ifname=%s enabled=%d)",
__func__, ifname, enabled);
for (bss = drv->bss; bss; bss = bss->next) {
if (strcmp(bss->ifname, ifname) != 0)
continue;
bss->privacy = enabled;
return 0;
}
return -1;
}
static int test_driver_set_encryption(const char *iface, void *priv,
const char *alg, const u8 *addr, int idx,
const u8 *key, size_t key_len, int txkey)
{
wpa_printf(MSG_DEBUG, "%s(iface=%s alg=%s idx=%d txkey=%d)",
__func__, iface, alg, idx, txkey);
if (addr)
wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
if (key)
wpa_hexdump_key(MSG_DEBUG, " key", key, key_len);
return 0;
}
static int test_driver_set_sta_vlan(void *priv, const u8 *addr,
const char *ifname, int vlan_id)
{
wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " ifname=%s vlan_id=%d)",
__func__, MAC2STR(addr), ifname, vlan_id);
return 0;
}
static int test_driver_sta_add(const char *ifname, void *priv, const u8 *addr,
u16 aid, u16 capability, u8 *supp_rates,
size_t supp_rates_len, int flags,
u16 listen_interval)
{
struct test_driver_data *drv = priv;
struct test_client_socket *cli;
struct test_driver_bss *bss;
wpa_printf(MSG_DEBUG, "%s(ifname=%s addr=" MACSTR " aid=%d "
"capability=0x%x flags=0x%x listen_interval=%d)",
__func__, ifname, MAC2STR(addr), aid, capability, flags,
listen_interval);
wpa_hexdump(MSG_DEBUG, "test_driver_sta_add - supp_rates",
supp_rates, supp_rates_len);
cli = drv->cli;
while (cli) {
if (memcmp(cli->addr, addr, ETH_ALEN) == 0)
break;
cli = cli->next;
}
if (!cli) {
wpa_printf(MSG_DEBUG, "%s: no matching client entry",
__func__);
return -1;
}
for (bss = drv->bss; bss; bss = bss->next) {
if (strcmp(ifname, bss->ifname) == 0)
break;
}
if (bss == NULL) {
wpa_printf(MSG_DEBUG, "%s: No matching interface found from "
"configured BSSes", __func__);
return -1;
}
cli->bss = bss;
return 0;
}
static void * test_driver_init(struct hostapd_data *hapd)
{
struct test_driver_data *drv;
struct sockaddr_un addr_un;
struct sockaddr_in addr_in;
struct sockaddr *addr;
socklen_t alen;
drv = os_zalloc(sizeof(struct test_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for test driver data\n");
return NULL;
}
drv->bss = os_zalloc(sizeof(*drv->bss));
if (drv->bss == NULL) {
printf("Could not allocate memory for test driver BSS data\n");
free(drv);
return NULL;
}
drv->hapd = hapd;
/* Generate a MAC address to help testing with multiple APs */
hapd->own_addr[0] = 0x02; /* locally administered */
sha1_prf((const u8 *) hapd->conf->iface, strlen(hapd->conf->iface),
"hostapd test bssid generation",
(const u8 *) hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len,
hapd->own_addr + 1, ETH_ALEN - 1);
os_strlcpy(drv->bss->ifname, hapd->conf->iface, IFNAMSIZ);
memcpy(drv->bss->bssid, hapd->own_addr, ETH_ALEN);
if (hapd->conf->test_socket) {
if (strlen(hapd->conf->test_socket) >=
sizeof(addr_un.sun_path)) {
printf("Too long test_socket path\n");
test_driver_free_priv(drv);
return NULL;
}
if (strncmp(hapd->conf->test_socket, "DIR:", 4) == 0) {
size_t len = strlen(hapd->conf->test_socket) + 30;
drv->socket_dir = strdup(hapd->conf->test_socket + 4);
drv->own_socket_path = malloc(len);
if (drv->own_socket_path) {
snprintf(drv->own_socket_path, len,
"%s/AP-" MACSTR,
hapd->conf->test_socket + 4,
MAC2STR(hapd->own_addr));
}
} else if (strncmp(hapd->conf->test_socket, "UDP:", 4) == 0) {
drv->udp_port = atoi(hapd->conf->test_socket + 4);
} else {
drv->own_socket_path = strdup(hapd->conf->test_socket);
}
if (drv->own_socket_path == NULL && drv->udp_port == 0) {
test_driver_free_priv(drv);
return NULL;
}
drv->test_socket = socket(drv->udp_port ? PF_INET : PF_UNIX,
SOCK_DGRAM, 0);
if (drv->test_socket < 0) {
perror("socket");
test_driver_free_priv(drv);
return NULL;
}
if (drv->udp_port) {
os_memset(&addr_in, 0, sizeof(addr_in));
addr_in.sin_family = AF_INET;
addr_in.sin_port = htons(drv->udp_port);
addr = (struct sockaddr *) &addr_in;
alen = sizeof(addr_in);
} else {
os_memset(&addr_un, 0, sizeof(addr_un));
addr_un.sun_family = AF_UNIX;
os_strlcpy(addr_un.sun_path, drv->own_socket_path,
sizeof(addr_un.sun_path));
addr = (struct sockaddr *) &addr_un;
alen = sizeof(addr_un);
}
if (bind(drv->test_socket, addr, alen) < 0) {
perror("bind(PF_UNIX)");
close(drv->test_socket);
if (drv->own_socket_path)
unlink(drv->own_socket_path);
test_driver_free_priv(drv);
return NULL;
}
eloop_register_read_sock(drv->test_socket,
test_driver_receive_unix, drv, NULL);
} else
drv->test_socket = -1;
return drv;
}
static void test_driver_deinit(void *priv)
{
struct test_driver_data *drv = priv;
struct test_client_socket *cli, *prev;
cli = drv->cli;
while (cli) {
prev = cli;
cli = cli->next;
free(prev);
}
if (drv->test_socket >= 0) {
eloop_unregister_read_sock(drv->test_socket);
close(drv->test_socket);
if (drv->own_socket_path)
unlink(drv->own_socket_path);
}
/* There should be only one BSS remaining at this point. */
if (drv->bss == NULL)
wpa_printf(MSG_ERROR, "%s: drv->bss == NULL", __func__);
else if (drv->bss->next)
wpa_printf(MSG_ERROR, "%s: drv->bss->next != NULL", __func__);
test_driver_free_priv(drv);
}
const struct wpa_driver_ops wpa_driver_test_ops = {
.name = "test",
.init = test_driver_init,
.deinit = test_driver_deinit,
.send_eapol = test_driver_send_eapol,
.send_mgmt_frame = test_driver_send_mgmt_frame,
.set_generic_elem = test_driver_set_generic_elem,
.sta_deauth = test_driver_sta_deauth,
.sta_disassoc = test_driver_sta_disassoc,
.get_hw_feature_data = test_driver_get_hw_feature_data,
.bss_add = test_driver_bss_add,
.bss_remove = test_driver_bss_remove,
.if_add = test_driver_if_add,
.if_update = test_driver_if_update,
.if_remove = test_driver_if_remove,
.valid_bss_mask = test_driver_valid_bss_mask,
.set_ssid = test_driver_set_ssid,
.set_privacy = test_driver_set_privacy,
.set_encryption = test_driver_set_encryption,
.set_sta_vlan = test_driver_set_sta_vlan,
.sta_add = test_driver_sta_add,
.send_ether = test_driver_send_ether,
.set_wps_beacon_ie = test_driver_set_wps_beacon_ie,
.set_wps_probe_resp_ie = test_driver_set_wps_probe_resp_ie,
};