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fragattacks/hostapd/config_file.c
Dmitry Shmidt ae6e1bee67 Add WPA_IGNORE_CONFIG_ERRORS option to continue in case of bad config 
This is an option to continue with wpa_supplicant and hostapd even if
config file has errors. The problem is that these daemons are the best
"candidates" for the config change, so if they can not start because
config file was let's say corrupted, you can not fix it easily.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2010-10-31 12:38:49 +02:00

2085 lines
56 KiB
C
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/*
* hostapd / Configuration file parser
* Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "utils/includes.h"
#ifndef CONFIG_NATIVE_WINDOWS
#include <grp.h>
#endif /* CONFIG_NATIVE_WINDOWS */
#include "utils/common.h"
#include "utils/uuid.h"
#include "common/ieee802_11_defs.h"
#include "drivers/driver.h"
#include "eap_server/eap.h"
#include "radius/radius_client.h"
#include "ap/wpa_auth.h"
#include "ap/ap_config.h"
#include "config_file.h"
extern struct wpa_driver_ops *wpa_drivers[];
#ifndef CONFIG_NO_VLAN
static int hostapd_config_read_vlan_file(struct hostapd_bss_config *bss,
const char *fname)
{
FILE *f;
char buf[128], *pos, *pos2;
int line = 0, vlan_id;
struct hostapd_vlan *vlan;
f = fopen(fname, "r");
if (!f) {
wpa_printf(MSG_ERROR, "VLAN file '%s' not readable.", fname);
return -1;
}
while (fgets(buf, sizeof(buf), f)) {
line++;
if (buf[0] == '#')
continue;
pos = buf;
while (*pos != '\0') {
if (*pos == '\n') {
*pos = '\0';
break;
}
pos++;
}
if (buf[0] == '\0')
continue;
if (buf[0] == '*') {
vlan_id = VLAN_ID_WILDCARD;
pos = buf + 1;
} else {
vlan_id = strtol(buf, &pos, 10);
if (buf == pos || vlan_id < 1 ||
vlan_id > MAX_VLAN_ID) {
wpa_printf(MSG_ERROR, "Invalid VLAN ID at "
"line %d in '%s'", line, fname);
fclose(f);
return -1;
}
}
while (*pos == ' ' || *pos == '\t')
pos++;
pos2 = pos;
while (*pos2 != ' ' && *pos2 != '\t' && *pos2 != '\0')
pos2++;
*pos2 = '\0';
if (*pos == '\0' || os_strlen(pos) > IFNAMSIZ) {
wpa_printf(MSG_ERROR, "Invalid VLAN ifname at line %d "
"in '%s'", line, fname);
fclose(f);
return -1;
}
vlan = os_malloc(sizeof(*vlan));
if (vlan == NULL) {
wpa_printf(MSG_ERROR, "Out of memory while reading "
"VLAN interfaces from '%s'", fname);
fclose(f);
return -1;
}
os_memset(vlan, 0, sizeof(*vlan));
vlan->vlan_id = vlan_id;
os_strlcpy(vlan->ifname, pos, sizeof(vlan->ifname));
if (bss->vlan_tail)
bss->vlan_tail->next = vlan;
else
bss->vlan = vlan;
bss->vlan_tail = vlan;
}
fclose(f);
return 0;
}
#endif /* CONFIG_NO_VLAN */
static int hostapd_acl_comp(const void *a, const void *b)
{
const struct mac_acl_entry *aa = a;
const struct mac_acl_entry *bb = b;
return os_memcmp(aa->addr, bb->addr, sizeof(macaddr));
}
static int hostapd_config_read_maclist(const char *fname,
struct mac_acl_entry **acl, int *num)
{
FILE *f;
char buf[128], *pos;
int line = 0;
u8 addr[ETH_ALEN];
struct mac_acl_entry *newacl;
int vlan_id;
if (!fname)
return 0;
f = fopen(fname, "r");
if (!f) {
wpa_printf(MSG_ERROR, "MAC list file '%s' not found.", fname);
return -1;
}
while (fgets(buf, sizeof(buf), f)) {
line++;
if (buf[0] == '#')
continue;
pos = buf;
while (*pos != '\0') {
if (*pos == '\n') {
*pos = '\0';
break;
}
pos++;
}
if (buf[0] == '\0')
continue;
if (hwaddr_aton(buf, addr)) {
wpa_printf(MSG_ERROR, "Invalid MAC address '%s' at "
"line %d in '%s'", buf, line, fname);
fclose(f);
return -1;
}
vlan_id = 0;
pos = buf;
while (*pos != '\0' && *pos != ' ' && *pos != '\t')
pos++;
while (*pos == ' ' || *pos == '\t')
pos++;
if (*pos != '\0')
vlan_id = atoi(pos);
newacl = os_realloc(*acl, (*num + 1) * sizeof(**acl));
if (newacl == NULL) {
wpa_printf(MSG_ERROR, "MAC list reallocation failed");
fclose(f);
return -1;
}
*acl = newacl;
os_memcpy((*acl)[*num].addr, addr, ETH_ALEN);
(*acl)[*num].vlan_id = vlan_id;
(*num)++;
}
fclose(f);
qsort(*acl, *num, sizeof(**acl), hostapd_acl_comp);
return 0;
}
#ifdef EAP_SERVER
static int hostapd_config_read_eap_user(const char *fname,
struct hostapd_bss_config *conf)
{
FILE *f;
char buf[512], *pos, *start, *pos2;
int line = 0, ret = 0, num_methods;
struct hostapd_eap_user *user, *tail = NULL;
if (!fname)
return 0;
f = fopen(fname, "r");
if (!f) {
wpa_printf(MSG_ERROR, "EAP user file '%s' not found.", fname);
return -1;
}
/* Lines: "user" METHOD,METHOD2 "password" (password optional) */
while (fgets(buf, sizeof(buf), f)) {
line++;
if (buf[0] == '#')
continue;
pos = buf;
while (*pos != '\0') {
if (*pos == '\n') {
*pos = '\0';
break;
}
pos++;
}
if (buf[0] == '\0')
continue;
user = NULL;
if (buf[0] != '"' && buf[0] != '*') {
wpa_printf(MSG_ERROR, "Invalid EAP identity (no \" in "
"start) on line %d in '%s'", line, fname);
goto failed;
}
user = os_zalloc(sizeof(*user));
if (user == NULL) {
wpa_printf(MSG_ERROR, "EAP user allocation failed");
goto failed;
}
user->force_version = -1;
if (buf[0] == '*') {
pos = buf;
} else {
pos = buf + 1;
start = pos;
while (*pos != '"' && *pos != '\0')
pos++;
if (*pos == '\0') {
wpa_printf(MSG_ERROR, "Invalid EAP identity "
"(no \" in end) on line %d in '%s'",
line, fname);
goto failed;
}
user->identity = os_malloc(pos - start);
if (user->identity == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate "
"memory for EAP identity");
goto failed;
}
os_memcpy(user->identity, start, pos - start);
user->identity_len = pos - start;
if (pos[0] == '"' && pos[1] == '*') {
user->wildcard_prefix = 1;
pos++;
}
}
pos++;
while (*pos == ' ' || *pos == '\t')
pos++;
if (*pos == '\0') {
wpa_printf(MSG_ERROR, "No EAP method on line %d in "
"'%s'", line, fname);
goto failed;
}
start = pos;
while (*pos != ' ' && *pos != '\t' && *pos != '\0')
pos++;
if (*pos == '\0') {
pos = NULL;
} else {
*pos = '\0';
pos++;
}
num_methods = 0;
while (*start) {
char *pos3 = os_strchr(start, ',');
if (pos3) {
*pos3++ = '\0';
}
user->methods[num_methods].method =
eap_server_get_type(
start,
&user->methods[num_methods].vendor);
if (user->methods[num_methods].vendor ==
EAP_VENDOR_IETF &&
user->methods[num_methods].method == EAP_TYPE_NONE)
{
if (os_strcmp(start, "TTLS-PAP") == 0) {
user->ttls_auth |= EAP_TTLS_AUTH_PAP;
goto skip_eap;
}
if (os_strcmp(start, "TTLS-CHAP") == 0) {
user->ttls_auth |= EAP_TTLS_AUTH_CHAP;
goto skip_eap;
}
if (os_strcmp(start, "TTLS-MSCHAP") == 0) {
user->ttls_auth |=
EAP_TTLS_AUTH_MSCHAP;
goto skip_eap;
}
if (os_strcmp(start, "TTLS-MSCHAPV2") == 0) {
user->ttls_auth |=
EAP_TTLS_AUTH_MSCHAPV2;
goto skip_eap;
}
wpa_printf(MSG_ERROR, "Unsupported EAP type "
"'%s' on line %d in '%s'",
start, line, fname);
goto failed;
}
num_methods++;
if (num_methods >= EAP_USER_MAX_METHODS)
break;
skip_eap:
if (pos3 == NULL)
break;
start = pos3;
}
if (num_methods == 0 && user->ttls_auth == 0) {
wpa_printf(MSG_ERROR, "No EAP types configured on "
"line %d in '%s'", line, fname);
goto failed;
}
if (pos == NULL)
goto done;
while (*pos == ' ' || *pos == '\t')
pos++;
if (*pos == '\0')
goto done;
if (os_strncmp(pos, "[ver=0]", 7) == 0) {
user->force_version = 0;
goto done;
}
if (os_strncmp(pos, "[ver=1]", 7) == 0) {
user->force_version = 1;
goto done;
}
if (os_strncmp(pos, "[2]", 3) == 0) {
user->phase2 = 1;
goto done;
}
if (*pos == '"') {
pos++;
start = pos;
while (*pos != '"' && *pos != '\0')
pos++;
if (*pos == '\0') {
wpa_printf(MSG_ERROR, "Invalid EAP password "
"(no \" in end) on line %d in '%s'",
line, fname);
goto failed;
}
user->password = os_malloc(pos - start);
if (user->password == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate "
"memory for EAP password");
goto failed;
}
os_memcpy(user->password, start, pos - start);
user->password_len = pos - start;
pos++;
} else if (os_strncmp(pos, "hash:", 5) == 0) {
pos += 5;
pos2 = pos;
while (*pos2 != '\0' && *pos2 != ' ' &&
*pos2 != '\t' && *pos2 != '#')
pos2++;
if (pos2 - pos != 32) {
wpa_printf(MSG_ERROR, "Invalid password hash "
"on line %d in '%s'", line, fname);
goto failed;
}
user->password = os_malloc(16);
if (user->password == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate "
"memory for EAP password hash");
goto failed;
}
if (hexstr2bin(pos, user->password, 16) < 0) {
wpa_printf(MSG_ERROR, "Invalid hash password "
"on line %d in '%s'", line, fname);
goto failed;
}
user->password_len = 16;
user->password_hash = 1;
pos = pos2;
} else {
pos2 = pos;
while (*pos2 != '\0' && *pos2 != ' ' &&
*pos2 != '\t' && *pos2 != '#')
pos2++;
if ((pos2 - pos) & 1) {
wpa_printf(MSG_ERROR, "Invalid hex password "
"on line %d in '%s'", line, fname);
goto failed;
}
user->password = os_malloc((pos2 - pos) / 2);
if (user->password == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate "
"memory for EAP password");
goto failed;
}
if (hexstr2bin(pos, user->password,
(pos2 - pos) / 2) < 0) {
wpa_printf(MSG_ERROR, "Invalid hex password "
"on line %d in '%s'", line, fname);
goto failed;
}
user->password_len = (pos2 - pos) / 2;
pos = pos2;
}
while (*pos == ' ' || *pos == '\t')
pos++;
if (os_strncmp(pos, "[2]", 3) == 0) {
user->phase2 = 1;
}
done:
if (tail == NULL) {
tail = conf->eap_user = user;
} else {
tail->next = user;
tail = user;
}
continue;
failed:
if (user) {
os_free(user->password);
os_free(user->identity);
os_free(user);
}
ret = -1;
break;
}
fclose(f);
return ret;
}
#endif /* EAP_SERVER */
#ifndef CONFIG_NO_RADIUS
static int
hostapd_config_read_radius_addr(struct hostapd_radius_server **server,
int *num_server, const char *val, int def_port,
struct hostapd_radius_server **curr_serv)
{
struct hostapd_radius_server *nserv;
int ret;
static int server_index = 1;
nserv = os_realloc(*server, (*num_server + 1) * sizeof(*nserv));
if (nserv == NULL)
return -1;
*server = nserv;
nserv = &nserv[*num_server];
(*num_server)++;
(*curr_serv) = nserv;
os_memset(nserv, 0, sizeof(*nserv));
nserv->port = def_port;
ret = hostapd_parse_ip_addr(val, &nserv->addr);
nserv->index = server_index++;
return ret;
}
#endif /* CONFIG_NO_RADIUS */
static int hostapd_config_parse_key_mgmt(int line, const char *value)
{
int val = 0, last;
char *start, *end, *buf;
buf = os_strdup(value);
if (buf == NULL)
return -1;
start = buf;
while (*start != '\0') {
while (*start == ' ' || *start == '\t')
start++;
if (*start == '\0')
break;
end = start;
while (*end != ' ' && *end != '\t' && *end != '\0')
end++;
last = *end == '\0';
*end = '\0';
if (os_strcmp(start, "WPA-PSK") == 0)
val |= WPA_KEY_MGMT_PSK;
else if (os_strcmp(start, "WPA-EAP") == 0)
val |= WPA_KEY_MGMT_IEEE8021X;
#ifdef CONFIG_IEEE80211R
else if (os_strcmp(start, "FT-PSK") == 0)
val |= WPA_KEY_MGMT_FT_PSK;
else if (os_strcmp(start, "FT-EAP") == 0)
val |= WPA_KEY_MGMT_FT_IEEE8021X;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
val |= WPA_KEY_MGMT_PSK_SHA256;
else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
#endif /* CONFIG_IEEE80211W */
else {
wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
line, start);
os_free(buf);
return -1;
}
if (last)
break;
start = end + 1;
}
os_free(buf);
if (val == 0) {
wpa_printf(MSG_ERROR, "Line %d: no key_mgmt values "
"configured.", line);
return -1;
}
return val;
}
static int hostapd_config_parse_cipher(int line, const char *value)
{
int val = 0, last;
char *start, *end, *buf;
buf = os_strdup(value);
if (buf == NULL)
return -1;
start = buf;
while (*start != '\0') {
while (*start == ' ' || *start == '\t')
start++;
if (*start == '\0')
break;
end = start;
while (*end != ' ' && *end != '\t' && *end != '\0')
end++;
last = *end == '\0';
*end = '\0';
if (os_strcmp(start, "CCMP") == 0)
val |= WPA_CIPHER_CCMP;
else if (os_strcmp(start, "TKIP") == 0)
val |= WPA_CIPHER_TKIP;
else if (os_strcmp(start, "WEP104") == 0)
val |= WPA_CIPHER_WEP104;
else if (os_strcmp(start, "WEP40") == 0)
val |= WPA_CIPHER_WEP40;
else if (os_strcmp(start, "NONE") == 0)
val |= WPA_CIPHER_NONE;
else {
wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
line, start);
os_free(buf);
return -1;
}
if (last)
break;
start = end + 1;
}
os_free(buf);
if (val == 0) {
wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
line);
return -1;
}
return val;
}
static int hostapd_config_read_wep(struct hostapd_wep_keys *wep, int keyidx,
char *val)
{
size_t len = os_strlen(val);
if (keyidx < 0 || keyidx > 3 || wep->key[keyidx] != NULL)
return -1;
if (val[0] == '"') {
if (len < 2 || val[len - 1] != '"')
return -1;
len -= 2;
wep->key[keyidx] = os_malloc(len);
if (wep->key[keyidx] == NULL)
return -1;
os_memcpy(wep->key[keyidx], val + 1, len);
wep->len[keyidx] = len;
} else {
if (len & 1)
return -1;
len /= 2;
wep->key[keyidx] = os_malloc(len);
if (wep->key[keyidx] == NULL)
return -1;
wep->len[keyidx] = len;
if (hexstr2bin(val, wep->key[keyidx], len) < 0)
return -1;
}
wep->keys_set++;
return 0;
}
static int hostapd_parse_rates(int **rate_list, char *val)
{
int *list;
int count;
char *pos, *end;
os_free(*rate_list);
*rate_list = NULL;
pos = val;
count = 0;
while (*pos != '\0') {
if (*pos == ' ')
count++;
pos++;
}
list = os_malloc(sizeof(int) * (count + 2));
if (list == NULL)
return -1;
pos = val;
count = 0;
while (*pos != '\0') {
end = os_strchr(pos, ' ');
if (end)
*end = '\0';
list[count++] = atoi(pos);
if (!end)
break;
pos = end + 1;
}
list[count] = -1;
*rate_list = list;
return 0;
}
static int hostapd_config_bss(struct hostapd_config *conf, const char *ifname)
{
struct hostapd_bss_config *bss;
if (*ifname == '\0')
return -1;
bss = os_realloc(conf->bss, (conf->num_bss + 1) *
sizeof(struct hostapd_bss_config));
if (bss == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate memory for "
"multi-BSS entry");
return -1;
}
conf->bss = bss;
bss = &(conf->bss[conf->num_bss]);
os_memset(bss, 0, sizeof(*bss));
bss->radius = os_zalloc(sizeof(*bss->radius));
if (bss->radius == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate memory for "
"multi-BSS RADIUS data");
return -1;
}
conf->num_bss++;
conf->last_bss = bss;
hostapd_config_defaults_bss(bss);
os_strlcpy(bss->iface, ifname, sizeof(bss->iface));
os_memcpy(bss->ssid.vlan, bss->iface, IFNAMSIZ + 1);
return 0;
}
/* convert floats with one decimal place to value*10 int, i.e.,
* "1.5" will return 15 */
static int hostapd_config_read_int10(const char *value)
{
int i, d;
char *pos;
i = atoi(value);
pos = os_strchr(value, '.');
d = 0;
if (pos) {
pos++;
if (*pos >= '0' && *pos <= '9')
d = *pos - '0';
}
return i * 10 + d;
}
static int valid_cw(int cw)
{
return (cw == 1 || cw == 3 || cw == 7 || cw == 15 || cw == 31 ||
cw == 63 || cw == 127 || cw == 255 || cw == 511 || cw == 1023);
}
enum {
IEEE80211_TX_QUEUE_DATA0 = 0, /* used for EDCA AC_VO data */
IEEE80211_TX_QUEUE_DATA1 = 1, /* used for EDCA AC_VI data */
IEEE80211_TX_QUEUE_DATA2 = 2, /* used for EDCA AC_BE data */
IEEE80211_TX_QUEUE_DATA3 = 3, /* used for EDCA AC_BK data */
IEEE80211_TX_QUEUE_DATA4 = 4,
IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
IEEE80211_TX_QUEUE_BEACON = 7
};
static int hostapd_config_tx_queue(struct hostapd_config *conf, char *name,
char *val)
{
int num;
char *pos;
struct hostapd_tx_queue_params *queue;
/* skip 'tx_queue_' prefix */
pos = name + 9;
if (os_strncmp(pos, "data", 4) == 0 &&
pos[4] >= '0' && pos[4] <= '9' && pos[5] == '_') {
num = pos[4] - '0';
pos += 6;
} else if (os_strncmp(pos, "after_beacon_", 13) == 0) {
num = IEEE80211_TX_QUEUE_AFTER_BEACON;
pos += 13;
} else if (os_strncmp(pos, "beacon_", 7) == 0) {
num = IEEE80211_TX_QUEUE_BEACON;
pos += 7;
} else {
wpa_printf(MSG_ERROR, "Unknown tx_queue name '%s'", pos);
return -1;
}
queue = &conf->tx_queue[num];
if (os_strcmp(pos, "aifs") == 0) {
queue->aifs = atoi(val);
if (queue->aifs < 0 || queue->aifs > 255) {
wpa_printf(MSG_ERROR, "Invalid AIFS value %d",
queue->aifs);
return -1;
}
} else if (os_strcmp(pos, "cwmin") == 0) {
queue->cwmin = atoi(val);
if (!valid_cw(queue->cwmin)) {
wpa_printf(MSG_ERROR, "Invalid cwMin value %d",
queue->cwmin);
return -1;
}
} else if (os_strcmp(pos, "cwmax") == 0) {
queue->cwmax = atoi(val);
if (!valid_cw(queue->cwmax)) {
wpa_printf(MSG_ERROR, "Invalid cwMax value %d",
queue->cwmax);
return -1;
}
} else if (os_strcmp(pos, "burst") == 0) {
queue->burst = hostapd_config_read_int10(val);
} else {
wpa_printf(MSG_ERROR, "Unknown tx_queue field '%s'", pos);
return -1;
}
queue->configured = 1;
return 0;
}
static int hostapd_config_wmm_ac(struct hostapd_config *conf, char *name,
char *val)
{
int num, v;
char *pos;
struct hostapd_wmm_ac_params *ac;
/* skip 'wme_ac_' or 'wmm_ac_' prefix */
pos = name + 7;
if (os_strncmp(pos, "be_", 3) == 0) {
num = 0;
pos += 3;
} else if (os_strncmp(pos, "bk_", 3) == 0) {
num = 1;
pos += 3;
} else if (os_strncmp(pos, "vi_", 3) == 0) {
num = 2;
pos += 3;
} else if (os_strncmp(pos, "vo_", 3) == 0) {
num = 3;
pos += 3;
} else {
wpa_printf(MSG_ERROR, "Unknown WMM name '%s'", pos);
return -1;
}
ac = &conf->wmm_ac_params[num];
if (os_strcmp(pos, "aifs") == 0) {
v = atoi(val);
if (v < 1 || v > 255) {
wpa_printf(MSG_ERROR, "Invalid AIFS value %d", v);
return -1;
}
ac->aifs = v;
} else if (os_strcmp(pos, "cwmin") == 0) {
v = atoi(val);
if (v < 0 || v > 12) {
wpa_printf(MSG_ERROR, "Invalid cwMin value %d", v);
return -1;
}
ac->cwmin = v;
} else if (os_strcmp(pos, "cwmax") == 0) {
v = atoi(val);
if (v < 0 || v > 12) {
wpa_printf(MSG_ERROR, "Invalid cwMax value %d", v);
return -1;
}
ac->cwmax = v;
} else if (os_strcmp(pos, "txop_limit") == 0) {
v = atoi(val);
if (v < 0 || v > 0xffff) {
wpa_printf(MSG_ERROR, "Invalid txop value %d", v);
return -1;
}
ac->txop_limit = v;
} else if (os_strcmp(pos, "acm") == 0) {
v = atoi(val);
if (v < 0 || v > 1) {
wpa_printf(MSG_ERROR, "Invalid acm value %d", v);
return -1;
}
ac->admission_control_mandatory = v;
} else {
wpa_printf(MSG_ERROR, "Unknown wmm_ac_ field '%s'", pos);
return -1;
}
return 0;
}
#ifdef CONFIG_IEEE80211R
static int add_r0kh(struct hostapd_bss_config *bss, char *value)
{
struct ft_remote_r0kh *r0kh;
char *pos, *next;
r0kh = os_zalloc(sizeof(*r0kh));
if (r0kh == NULL)
return -1;
/* 02:01:02:03:04:05 a.example.com 000102030405060708090a0b0c0d0e0f */
pos = value;
next = os_strchr(pos, ' ');
if (next)
*next++ = '\0';
if (next == NULL || hwaddr_aton(pos, r0kh->addr)) {
wpa_printf(MSG_ERROR, "Invalid R0KH MAC address: '%s'", pos);
os_free(r0kh);
return -1;
}
pos = next;
next = os_strchr(pos, ' ');
if (next)
*next++ = '\0';
if (next == NULL || next - pos > FT_R0KH_ID_MAX_LEN) {
wpa_printf(MSG_ERROR, "Invalid R0KH-ID: '%s'", pos);
os_free(r0kh);
return -1;
}
r0kh->id_len = next - pos - 1;
os_memcpy(r0kh->id, pos, r0kh->id_len);
pos = next;
if (hexstr2bin(pos, r0kh->key, sizeof(r0kh->key))) {
wpa_printf(MSG_ERROR, "Invalid R0KH key: '%s'", pos);
os_free(r0kh);
return -1;
}
r0kh->next = bss->r0kh_list;
bss->r0kh_list = r0kh;
return 0;
}
static int add_r1kh(struct hostapd_bss_config *bss, char *value)
{
struct ft_remote_r1kh *r1kh;
char *pos, *next;
r1kh = os_zalloc(sizeof(*r1kh));
if (r1kh == NULL)
return -1;
/* 02:01:02:03:04:05 02:01:02:03:04:05
* 000102030405060708090a0b0c0d0e0f */
pos = value;
next = os_strchr(pos, ' ');
if (next)
*next++ = '\0';
if (next == NULL || hwaddr_aton(pos, r1kh->addr)) {
wpa_printf(MSG_ERROR, "Invalid R1KH MAC address: '%s'", pos);
os_free(r1kh);
return -1;
}
pos = next;
next = os_strchr(pos, ' ');
if (next)
*next++ = '\0';
if (next == NULL || hwaddr_aton(pos, r1kh->id)) {
wpa_printf(MSG_ERROR, "Invalid R1KH-ID: '%s'", pos);
os_free(r1kh);
return -1;
}
pos = next;
if (hexstr2bin(pos, r1kh->key, sizeof(r1kh->key))) {
wpa_printf(MSG_ERROR, "Invalid R1KH key: '%s'", pos);
os_free(r1kh);
return -1;
}
r1kh->next = bss->r1kh_list;
bss->r1kh_list = r1kh;
return 0;
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211N
static int hostapd_config_ht_capab(struct hostapd_config *conf,
const char *capab)
{
if (os_strstr(capab, "[LDPC]"))
conf->ht_capab |= HT_CAP_INFO_LDPC_CODING_CAP;
if (os_strstr(capab, "[HT40-]")) {
conf->ht_capab |= HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
conf->secondary_channel = -1;
}
if (os_strstr(capab, "[HT40+]")) {
conf->ht_capab |= HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
conf->secondary_channel = 1;
}
if (os_strstr(capab, "[SMPS-STATIC]")) {
conf->ht_capab &= ~HT_CAP_INFO_SMPS_MASK;
conf->ht_capab |= HT_CAP_INFO_SMPS_STATIC;
}
if (os_strstr(capab, "[SMPS-DYNAMIC]")) {
conf->ht_capab &= ~HT_CAP_INFO_SMPS_MASK;
conf->ht_capab |= HT_CAP_INFO_SMPS_DYNAMIC;
}
if (os_strstr(capab, "[GF]"))
conf->ht_capab |= HT_CAP_INFO_GREEN_FIELD;
if (os_strstr(capab, "[SHORT-GI-20]"))
conf->ht_capab |= HT_CAP_INFO_SHORT_GI20MHZ;
if (os_strstr(capab, "[SHORT-GI-40]"))
conf->ht_capab |= HT_CAP_INFO_SHORT_GI40MHZ;
if (os_strstr(capab, "[TX-STBC]"))
conf->ht_capab |= HT_CAP_INFO_TX_STBC;
if (os_strstr(capab, "[RX-STBC1]")) {
conf->ht_capab &= ~HT_CAP_INFO_RX_STBC_MASK;
conf->ht_capab |= HT_CAP_INFO_RX_STBC_1;
}
if (os_strstr(capab, "[RX-STBC12]")) {
conf->ht_capab &= ~HT_CAP_INFO_RX_STBC_MASK;
conf->ht_capab |= HT_CAP_INFO_RX_STBC_12;
}
if (os_strstr(capab, "[RX-STBC123]")) {
conf->ht_capab &= ~HT_CAP_INFO_RX_STBC_MASK;
conf->ht_capab |= HT_CAP_INFO_RX_STBC_123;
}
if (os_strstr(capab, "[DELAYED-BA]"))
conf->ht_capab |= HT_CAP_INFO_DELAYED_BA;
if (os_strstr(capab, "[MAX-AMSDU-7935]"))
conf->ht_capab |= HT_CAP_INFO_MAX_AMSDU_SIZE;
if (os_strstr(capab, "[DSSS_CCK-40]"))
conf->ht_capab |= HT_CAP_INFO_DSSS_CCK40MHZ;
if (os_strstr(capab, "[PSMP]"))
conf->ht_capab |= HT_CAP_INFO_PSMP_SUPP;
if (os_strstr(capab, "[LSIG-TXOP-PROT]"))
conf->ht_capab |= HT_CAP_INFO_LSIG_TXOP_PROTECT_SUPPORT;
return 0;
}
#endif /* CONFIG_IEEE80211N */
static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
struct hostapd_config *conf)
{
if (bss->ieee802_1x && !bss->eap_server &&
!bss->radius->auth_servers) {
wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
"EAP authenticator configured).");
return -1;
}
if (bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
bss->ssid.wpa_psk_file == NULL) {
wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
"is not configured.");
return -1;
}
if (hostapd_mac_comp_empty(bss->bssid) != 0) {
size_t i;
for (i = 0; i < conf->num_bss; i++) {
if ((&conf->bss[i] != bss) &&
(hostapd_mac_comp(conf->bss[i].bssid,
bss->bssid) == 0)) {
wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
" on interface '%s' and '%s'.",
MAC2STR(bss->bssid),
conf->bss[i].iface, bss->iface);
return -1;
}
}
}
#ifdef CONFIG_IEEE80211R
if ((bss->wpa_key_mgmt &
(WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X)) &&
(bss->nas_identifier == NULL ||
os_strlen(bss->nas_identifier) < 1 ||
os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
"nas_identifier to be configured as a 1..48 octet "
"string");
return -1;
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211N
if (conf->ieee80211n && bss->wpa &&
!(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
!(bss->rsn_pairwise & WPA_CIPHER_CCMP)) {
wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
"requires CCMP to be enabled");
return -1;
}
#endif /* CONFIG_IEEE80211N */
#ifdef CONFIG_WPS2
if (bss->wps_state && bss->ignore_broadcast_ssid) {
wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
"configuration forced WPS to be disabled");
bss->wps_state = 0;
}
if (bss->wps_state && bss->ssid.wep.keys_set && bss->wpa == 0) {
wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
"disabled");
bss->wps_state = 0;
}
#endif /* CONFIG_WPS2 */
return 0;
}
static int hostapd_config_check(struct hostapd_config *conf)
{
size_t i;
if (conf->ieee80211d && (!conf->country[0] || !conf->country[1])) {
wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
"setting the country_code");
return -1;
}
for (i = 0; i < conf->num_bss; i++) {
if (hostapd_config_check_bss(&conf->bss[i], conf))
return -1;
}
return 0;
}
/**
* hostapd_config_read - Read and parse a configuration file
* @fname: Configuration file name (including path, if needed)
* Returns: Allocated configuration data structure
*/
struct hostapd_config * hostapd_config_read(const char *fname)
{
struct hostapd_config *conf;
struct hostapd_bss_config *bss;
FILE *f;
char buf[256], *pos;
int line = 0;
int errors = 0;
int pairwise;
size_t i;
f = fopen(fname, "r");
if (f == NULL) {
wpa_printf(MSG_ERROR, "Could not open configuration file '%s' "
"for reading.", fname);
return NULL;
}
conf = hostapd_config_defaults();
if (conf == NULL) {
fclose(f);
return NULL;
}
/* set default driver based on configuration */
conf->driver = wpa_drivers[0];
if (conf->driver == NULL) {
wpa_printf(MSG_ERROR, "No driver wrappers registered!");
hostapd_config_free(conf);
fclose(f);
return NULL;
}
bss = conf->last_bss = conf->bss;
while (fgets(buf, sizeof(buf), f)) {
bss = conf->last_bss;
line++;
if (buf[0] == '#')
continue;
pos = buf;
while (*pos != '\0') {
if (*pos == '\n') {
*pos = '\0';
break;
}
pos++;
}
if (buf[0] == '\0')
continue;
pos = os_strchr(buf, '=');
if (pos == NULL) {
wpa_printf(MSG_ERROR, "Line %d: invalid line '%s'",
line, buf);
errors++;
continue;
}
*pos = '\0';
pos++;
if (os_strcmp(buf, "interface") == 0) {
os_strlcpy(conf->bss[0].iface, pos,
sizeof(conf->bss[0].iface));
} else if (os_strcmp(buf, "bridge") == 0) {
os_strlcpy(bss->bridge, pos, sizeof(bss->bridge));
} else if (os_strcmp(buf, "driver") == 0) {
int j;
/* clear to get error below if setting is invalid */
conf->driver = NULL;
for (j = 0; wpa_drivers[j]; j++) {
if (os_strcmp(pos, wpa_drivers[j]->name) == 0)
{
conf->driver = wpa_drivers[j];
break;
}
}
if (conf->driver == NULL) {
wpa_printf(MSG_ERROR, "Line %d: invalid/"
"unknown driver '%s'", line, pos);
errors++;
}
} else if (os_strcmp(buf, "debug") == 0) {
wpa_printf(MSG_DEBUG, "Line %d: DEPRECATED: 'debug' "
"configuration variable is not used "
"anymore", line);
} else if (os_strcmp(buf, "logger_syslog_level") == 0) {
bss->logger_syslog_level = atoi(pos);
} else if (os_strcmp(buf, "logger_stdout_level") == 0) {
bss->logger_stdout_level = atoi(pos);
} else if (os_strcmp(buf, "logger_syslog") == 0) {
bss->logger_syslog = atoi(pos);
} else if (os_strcmp(buf, "logger_stdout") == 0) {
bss->logger_stdout = atoi(pos);
} else if (os_strcmp(buf, "dump_file") == 0) {
bss->dump_log_name = os_strdup(pos);
} else if (os_strcmp(buf, "ssid") == 0) {
bss->ssid.ssid_len = os_strlen(pos);
if (bss->ssid.ssid_len > HOSTAPD_MAX_SSID_LEN ||
bss->ssid.ssid_len < 1) {
wpa_printf(MSG_ERROR, "Line %d: invalid SSID "
"'%s'", line, pos);
errors++;
} else {
os_memcpy(bss->ssid.ssid, pos,
bss->ssid.ssid_len);
bss->ssid.ssid[bss->ssid.ssid_len] = '\0';
bss->ssid.ssid_set = 1;
}
} else if (os_strcmp(buf, "macaddr_acl") == 0) {
bss->macaddr_acl = atoi(pos);
if (bss->macaddr_acl != ACCEPT_UNLESS_DENIED &&
bss->macaddr_acl != DENY_UNLESS_ACCEPTED &&
bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
wpa_printf(MSG_ERROR, "Line %d: unknown "
"macaddr_acl %d",
line, bss->macaddr_acl);
}
} else if (os_strcmp(buf, "accept_mac_file") == 0) {
if (hostapd_config_read_maclist(pos, &bss->accept_mac,
&bss->num_accept_mac))
{
wpa_printf(MSG_ERROR, "Line %d: Failed to "
"read accept_mac_file '%s'",
line, pos);
errors++;
}
} else if (os_strcmp(buf, "deny_mac_file") == 0) {
if (hostapd_config_read_maclist(pos, &bss->deny_mac,
&bss->num_deny_mac)) {
wpa_printf(MSG_ERROR, "Line %d: Failed to "
"read deny_mac_file '%s'",
line, pos);
errors++;
}
} else if (os_strcmp(buf, "wds_sta") == 0) {
bss->wds_sta = atoi(pos);
} else if (os_strcmp(buf, "ap_max_inactivity") == 0) {
bss->ap_max_inactivity = atoi(pos);
} else if (os_strcmp(buf, "country_code") == 0) {
os_memcpy(conf->country, pos, 2);
/* FIX: make this configurable */
conf->country[2] = ' ';
} else if (os_strcmp(buf, "ieee80211d") == 0) {
conf->ieee80211d = atoi(pos);
} else if (os_strcmp(buf, "ieee8021x") == 0) {
bss->ieee802_1x = atoi(pos);
} else if (os_strcmp(buf, "eapol_version") == 0) {
bss->eapol_version = atoi(pos);
if (bss->eapol_version < 1 ||
bss->eapol_version > 2) {
wpa_printf(MSG_ERROR, "Line %d: invalid EAPOL "
"version (%d): '%s'.",
line, bss->eapol_version, pos);
errors++;
} else
wpa_printf(MSG_DEBUG, "eapol_version=%d",
bss->eapol_version);
#ifdef EAP_SERVER
} else if (os_strcmp(buf, "eap_authenticator") == 0) {
bss->eap_server = atoi(pos);
wpa_printf(MSG_ERROR, "Line %d: obsolete "
"eap_authenticator used; this has been "
"renamed to eap_server", line);
} else if (os_strcmp(buf, "eap_server") == 0) {
bss->eap_server = atoi(pos);
} else if (os_strcmp(buf, "eap_user_file") == 0) {
if (hostapd_config_read_eap_user(pos, bss))
errors++;
} else if (os_strcmp(buf, "ca_cert") == 0) {
os_free(bss->ca_cert);
bss->ca_cert = os_strdup(pos);
} else if (os_strcmp(buf, "server_cert") == 0) {
os_free(bss->server_cert);
bss->server_cert = os_strdup(pos);
} else if (os_strcmp(buf, "private_key") == 0) {
os_free(bss->private_key);
bss->private_key = os_strdup(pos);
} else if (os_strcmp(buf, "private_key_passwd") == 0) {
os_free(bss->private_key_passwd);
bss->private_key_passwd = os_strdup(pos);
} else if (os_strcmp(buf, "check_crl") == 0) {
bss->check_crl = atoi(pos);
} else if (os_strcmp(buf, "dh_file") == 0) {
os_free(bss->dh_file);
bss->dh_file = os_strdup(pos);
} else if (os_strcmp(buf, "fragment_size") == 0) {
bss->fragment_size = atoi(pos);
#ifdef EAP_SERVER_FAST
} else if (os_strcmp(buf, "pac_opaque_encr_key") == 0) {
os_free(bss->pac_opaque_encr_key);
bss->pac_opaque_encr_key = os_malloc(16);
if (bss->pac_opaque_encr_key == NULL) {
wpa_printf(MSG_ERROR, "Line %d: No memory for "
"pac_opaque_encr_key", line);
errors++;
} else if (hexstr2bin(pos, bss->pac_opaque_encr_key,
16)) {
wpa_printf(MSG_ERROR, "Line %d: Invalid "
"pac_opaque_encr_key", line);
errors++;
}
} else if (os_strcmp(buf, "eap_fast_a_id") == 0) {
size_t idlen = os_strlen(pos);
if (idlen & 1) {
wpa_printf(MSG_ERROR, "Line %d: Invalid "
"eap_fast_a_id", line);
errors++;
} else {
os_free(bss->eap_fast_a_id);
bss->eap_fast_a_id = os_malloc(idlen / 2);
if (bss->eap_fast_a_id == NULL ||
hexstr2bin(pos, bss->eap_fast_a_id,
idlen / 2)) {
wpa_printf(MSG_ERROR, "Line %d: "
"Failed to parse "
"eap_fast_a_id", line);
errors++;
} else
bss->eap_fast_a_id_len = idlen / 2;
}
} else if (os_strcmp(buf, "eap_fast_a_id_info") == 0) {
os_free(bss->eap_fast_a_id_info);
bss->eap_fast_a_id_info = os_strdup(pos);
} else if (os_strcmp(buf, "eap_fast_prov") == 0) {
bss->eap_fast_prov = atoi(pos);
} else if (os_strcmp(buf, "pac_key_lifetime") == 0) {
bss->pac_key_lifetime = atoi(pos);
} else if (os_strcmp(buf, "pac_key_refresh_time") == 0) {
bss->pac_key_refresh_time = atoi(pos);
#endif /* EAP_SERVER_FAST */
#ifdef EAP_SERVER_SIM
} else if (os_strcmp(buf, "eap_sim_db") == 0) {
os_free(bss->eap_sim_db);
bss->eap_sim_db = os_strdup(pos);
} else if (os_strcmp(buf, "eap_sim_aka_result_ind") == 0) {
bss->eap_sim_aka_result_ind = atoi(pos);
#endif /* EAP_SERVER_SIM */
#ifdef EAP_SERVER_TNC
} else if (os_strcmp(buf, "tnc") == 0) {
bss->tnc = atoi(pos);
#endif /* EAP_SERVER_TNC */
#ifdef EAP_SERVER_PWD
} else if (os_strcmp(buf, "pwd_group") == 0) {
bss->pwd_group = atoi(pos);
#endif /* EAP_SERVER_PWD */
#endif /* EAP_SERVER */
} else if (os_strcmp(buf, "eap_message") == 0) {
char *term;
bss->eap_req_id_text = os_strdup(pos);
if (bss->eap_req_id_text == NULL) {
wpa_printf(MSG_ERROR, "Line %d: Failed to "
"allocate memory for "
"eap_req_id_text", line);
errors++;
continue;
}
bss->eap_req_id_text_len =
os_strlen(bss->eap_req_id_text);
term = os_strstr(bss->eap_req_id_text, "\\0");
if (term) {
*term++ = '\0';
os_memmove(term, term + 1,
bss->eap_req_id_text_len -
(term - bss->eap_req_id_text) - 1);
bss->eap_req_id_text_len--;
}
} else if (os_strcmp(buf, "wep_key_len_broadcast") == 0) {
bss->default_wep_key_len = atoi(pos);
if (bss->default_wep_key_len > 13) {
wpa_printf(MSG_ERROR, "Line %d: invalid WEP "
"key len %lu (= %lu bits)", line,
(unsigned long)
bss->default_wep_key_len,
(unsigned long)
bss->default_wep_key_len * 8);
errors++;
}
} else if (os_strcmp(buf, "wep_key_len_unicast") == 0) {
bss->individual_wep_key_len = atoi(pos);
if (bss->individual_wep_key_len < 0 ||
bss->individual_wep_key_len > 13) {
wpa_printf(MSG_ERROR, "Line %d: invalid WEP "
"key len %d (= %d bits)", line,
bss->individual_wep_key_len,
bss->individual_wep_key_len * 8);
errors++;
}
} else if (os_strcmp(buf, "wep_rekey_period") == 0) {
bss->wep_rekeying_period = atoi(pos);
if (bss->wep_rekeying_period < 0) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"period %d",
line, bss->wep_rekeying_period);
errors++;
}
} else if (os_strcmp(buf, "eap_reauth_period") == 0) {
bss->eap_reauth_period = atoi(pos);
if (bss->eap_reauth_period < 0) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"period %d",
line, bss->eap_reauth_period);
errors++;
}
} else if (os_strcmp(buf, "eapol_key_index_workaround") == 0) {
bss->eapol_key_index_workaround = atoi(pos);
#ifdef CONFIG_IAPP
} else if (os_strcmp(buf, "iapp_interface") == 0) {
bss->ieee802_11f = 1;
os_strlcpy(bss->iapp_iface, pos,
sizeof(bss->iapp_iface));
#endif /* CONFIG_IAPP */
} else if (os_strcmp(buf, "own_ip_addr") == 0) {
if (hostapd_parse_ip_addr(pos, &bss->own_ip_addr)) {
wpa_printf(MSG_ERROR, "Line %d: invalid IP "
"address '%s'", line, pos);
errors++;
}
} else if (os_strcmp(buf, "nas_identifier") == 0) {
bss->nas_identifier = os_strdup(pos);
#ifndef CONFIG_NO_RADIUS
} else if (os_strcmp(buf, "auth_server_addr") == 0) {
if (hostapd_config_read_radius_addr(
&bss->radius->auth_servers,
&bss->radius->num_auth_servers, pos, 1812,
&bss->radius->auth_server)) {
wpa_printf(MSG_ERROR, "Line %d: invalid IP "
"address '%s'", line, pos);
errors++;
}
} else if (bss->radius->auth_server &&
os_strcmp(buf, "auth_server_port") == 0) {
bss->radius->auth_server->port = atoi(pos);
} else if (bss->radius->auth_server &&
os_strcmp(buf, "auth_server_shared_secret") == 0) {
int len = os_strlen(pos);
if (len == 0) {
/* RFC 2865, Ch. 3 */
wpa_printf(MSG_ERROR, "Line %d: empty shared "
"secret is not allowed.", line);
errors++;
}
bss->radius->auth_server->shared_secret =
(u8 *) os_strdup(pos);
bss->radius->auth_server->shared_secret_len = len;
} else if (os_strcmp(buf, "acct_server_addr") == 0) {
if (hostapd_config_read_radius_addr(
&bss->radius->acct_servers,
&bss->radius->num_acct_servers, pos, 1813,
&bss->radius->acct_server)) {
wpa_printf(MSG_ERROR, "Line %d: invalid IP "
"address '%s'", line, pos);
errors++;
}
} else if (bss->radius->acct_server &&
os_strcmp(buf, "acct_server_port") == 0) {
bss->radius->acct_server->port = atoi(pos);
} else if (bss->radius->acct_server &&
os_strcmp(buf, "acct_server_shared_secret") == 0) {
int len = os_strlen(pos);
if (len == 0) {
/* RFC 2865, Ch. 3 */
wpa_printf(MSG_ERROR, "Line %d: empty shared "
"secret is not allowed.", line);
errors++;
}
bss->radius->acct_server->shared_secret =
(u8 *) os_strdup(pos);
bss->radius->acct_server->shared_secret_len = len;
} else if (os_strcmp(buf, "radius_retry_primary_interval") ==
0) {
bss->radius->retry_primary_interval = atoi(pos);
} else if (os_strcmp(buf, "radius_acct_interim_interval") == 0)
{
bss->acct_interim_interval = atoi(pos);
#endif /* CONFIG_NO_RADIUS */
} else if (os_strcmp(buf, "auth_algs") == 0) {
bss->auth_algs = atoi(pos);
if (bss->auth_algs == 0) {
wpa_printf(MSG_ERROR, "Line %d: no "
"authentication algorithms allowed",
line);
errors++;
}
} else if (os_strcmp(buf, "max_num_sta") == 0) {
bss->max_num_sta = atoi(pos);
if (bss->max_num_sta < 0 ||
bss->max_num_sta > MAX_STA_COUNT) {
wpa_printf(MSG_ERROR, "Line %d: Invalid "
"max_num_sta=%d; allowed range "
"0..%d", line, bss->max_num_sta,
MAX_STA_COUNT);
errors++;
}
} else if (os_strcmp(buf, "wpa") == 0) {
bss->wpa = atoi(pos);
} else if (os_strcmp(buf, "wpa_group_rekey") == 0) {
bss->wpa_group_rekey = atoi(pos);
} else if (os_strcmp(buf, "wpa_strict_rekey") == 0) {
bss->wpa_strict_rekey = atoi(pos);
} else if (os_strcmp(buf, "wpa_gmk_rekey") == 0) {
bss->wpa_gmk_rekey = atoi(pos);
} else if (os_strcmp(buf, "wpa_ptk_rekey") == 0) {
bss->wpa_ptk_rekey = atoi(pos);
} else if (os_strcmp(buf, "wpa_passphrase") == 0) {
int len = os_strlen(pos);
if (len < 8 || len > 63) {
wpa_printf(MSG_ERROR, "Line %d: invalid WPA "
"passphrase length %d (expected "
"8..63)", line, len);
errors++;
} else {
os_free(bss->ssid.wpa_passphrase);
bss->ssid.wpa_passphrase = os_strdup(pos);
}
} else if (os_strcmp(buf, "wpa_psk") == 0) {
os_free(bss->ssid.wpa_psk);
bss->ssid.wpa_psk =
os_zalloc(sizeof(struct hostapd_wpa_psk));
if (bss->ssid.wpa_psk == NULL)
errors++;
else if (hexstr2bin(pos, bss->ssid.wpa_psk->psk,
PMK_LEN) ||
pos[PMK_LEN * 2] != '\0') {
wpa_printf(MSG_ERROR, "Line %d: Invalid PSK "
"'%s'.", line, pos);
errors++;
} else {
bss->ssid.wpa_psk->group = 1;
}
} else if (os_strcmp(buf, "wpa_psk_file") == 0) {
os_free(bss->ssid.wpa_psk_file);
bss->ssid.wpa_psk_file = os_strdup(pos);
if (!bss->ssid.wpa_psk_file) {
wpa_printf(MSG_ERROR, "Line %d: allocation "
"failed", line);
errors++;
}
} else if (os_strcmp(buf, "wpa_key_mgmt") == 0) {
bss->wpa_key_mgmt =
hostapd_config_parse_key_mgmt(line, pos);
if (bss->wpa_key_mgmt == -1)
errors++;
} else if (os_strcmp(buf, "wpa_pairwise") == 0) {
bss->wpa_pairwise =
hostapd_config_parse_cipher(line, pos);
if (bss->wpa_pairwise == -1 ||
bss->wpa_pairwise == 0)
errors++;
else if (bss->wpa_pairwise &
(WPA_CIPHER_NONE | WPA_CIPHER_WEP40 |
WPA_CIPHER_WEP104)) {
wpa_printf(MSG_ERROR, "Line %d: unsupported "
"pairwise cipher suite '%s'",
bss->wpa_pairwise, pos);
errors++;
}
} else if (os_strcmp(buf, "rsn_pairwise") == 0) {
bss->rsn_pairwise =
hostapd_config_parse_cipher(line, pos);
if (bss->rsn_pairwise == -1 ||
bss->rsn_pairwise == 0)
errors++;
else if (bss->rsn_pairwise &
(WPA_CIPHER_NONE | WPA_CIPHER_WEP40 |
WPA_CIPHER_WEP104)) {
wpa_printf(MSG_ERROR, "Line %d: unsupported "
"pairwise cipher suite '%s'",
bss->rsn_pairwise, pos);
errors++;
}
#ifdef CONFIG_RSN_PREAUTH
} else if (os_strcmp(buf, "rsn_preauth") == 0) {
bss->rsn_preauth = atoi(pos);
} else if (os_strcmp(buf, "rsn_preauth_interfaces") == 0) {
bss->rsn_preauth_interfaces = os_strdup(pos);
#endif /* CONFIG_RSN_PREAUTH */
#ifdef CONFIG_PEERKEY
} else if (os_strcmp(buf, "peerkey") == 0) {
bss->peerkey = atoi(pos);
#endif /* CONFIG_PEERKEY */
#ifdef CONFIG_IEEE80211R
} else if (os_strcmp(buf, "mobility_domain") == 0) {
if (os_strlen(pos) != 2 * MOBILITY_DOMAIN_ID_LEN ||
hexstr2bin(pos, bss->mobility_domain,
MOBILITY_DOMAIN_ID_LEN) != 0) {
wpa_printf(MSG_DEBUG, "Line %d: Invalid "
"mobility_domain '%s'", line, pos);
errors++;
continue;
}
} else if (os_strcmp(buf, "r1_key_holder") == 0) {
if (os_strlen(pos) != 2 * FT_R1KH_ID_LEN ||
hexstr2bin(pos, bss->r1_key_holder,
FT_R1KH_ID_LEN) != 0) {
wpa_printf(MSG_DEBUG, "Line %d: Invalid "
"r1_key_holder '%s'", line, pos);
errors++;
continue;
}
} else if (os_strcmp(buf, "r0_key_lifetime") == 0) {
bss->r0_key_lifetime = atoi(pos);
} else if (os_strcmp(buf, "reassociation_deadline") == 0) {
bss->reassociation_deadline = atoi(pos);
} else if (os_strcmp(buf, "r0kh") == 0) {
if (add_r0kh(bss, pos) < 0) {
wpa_printf(MSG_DEBUG, "Line %d: Invalid "
"r0kh '%s'", line, pos);
errors++;
continue;
}
} else if (os_strcmp(buf, "r1kh") == 0) {
if (add_r1kh(bss, pos) < 0) {
wpa_printf(MSG_DEBUG, "Line %d: Invalid "
"r1kh '%s'", line, pos);
errors++;
continue;
}
} else if (os_strcmp(buf, "pmk_r1_push") == 0) {
bss->pmk_r1_push = atoi(pos);
#endif /* CONFIG_IEEE80211R */
#ifndef CONFIG_NO_CTRL_IFACE
} else if (os_strcmp(buf, "ctrl_interface") == 0) {
os_free(bss->ctrl_interface);
bss->ctrl_interface = os_strdup(pos);
} else if (os_strcmp(buf, "ctrl_interface_group") == 0) {
#ifndef CONFIG_NATIVE_WINDOWS
struct group *grp;
char *endp;
const char *group = pos;
grp = getgrnam(group);
if (grp) {
bss->ctrl_interface_gid = grp->gr_gid;
bss->ctrl_interface_gid_set = 1;
wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d"
" (from group name '%s')",
bss->ctrl_interface_gid, group);
continue;
}
/* Group name not found - try to parse this as gid */
bss->ctrl_interface_gid = strtol(group, &endp, 10);
if (*group == '\0' || *endp != '\0') {
wpa_printf(MSG_DEBUG, "Line %d: Invalid group "
"'%s'", line, group);
errors++;
continue;
}
bss->ctrl_interface_gid_set = 1;
wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d",
bss->ctrl_interface_gid);
#endif /* CONFIG_NATIVE_WINDOWS */
#endif /* CONFIG_NO_CTRL_IFACE */
#ifdef RADIUS_SERVER
} else if (os_strcmp(buf, "radius_server_clients") == 0) {
os_free(bss->radius_server_clients);
bss->radius_server_clients = os_strdup(pos);
} else if (os_strcmp(buf, "radius_server_auth_port") == 0) {
bss->radius_server_auth_port = atoi(pos);
} else if (os_strcmp(buf, "radius_server_ipv6") == 0) {
bss->radius_server_ipv6 = atoi(pos);
#endif /* RADIUS_SERVER */
} else if (os_strcmp(buf, "test_socket") == 0) {
os_free(bss->test_socket);
bss->test_socket = os_strdup(pos);
} else if (os_strcmp(buf, "use_pae_group_addr") == 0) {
bss->use_pae_group_addr = atoi(pos);
} else if (os_strcmp(buf, "hw_mode") == 0) {
if (os_strcmp(pos, "a") == 0)
conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
else if (os_strcmp(pos, "b") == 0)
conf->hw_mode = HOSTAPD_MODE_IEEE80211B;
else if (os_strcmp(pos, "g") == 0)
conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
else {
wpa_printf(MSG_ERROR, "Line %d: unknown "
"hw_mode '%s'", line, pos);
errors++;
}
} else if (os_strcmp(buf, "channel") == 0) {
conf->channel = atoi(pos);
} else if (os_strcmp(buf, "beacon_int") == 0) {
int val = atoi(pos);
/* MIB defines range as 1..65535, but very small values
* cause problems with the current implementation.
* Since it is unlikely that this small numbers are
* useful in real life scenarios, do not allow beacon
* period to be set below 15 TU. */
if (val < 15 || val > 65535) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"beacon_int %d (expected "
"15..65535)", line, val);
errors++;
} else
conf->beacon_int = val;
} else if (os_strcmp(buf, "dtim_period") == 0) {
bss->dtim_period = atoi(pos);
if (bss->dtim_period < 1 || bss->dtim_period > 255) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"dtim_period %d",
line, bss->dtim_period);
errors++;
}
} else if (os_strcmp(buf, "rts_threshold") == 0) {
conf->rts_threshold = atoi(pos);
if (conf->rts_threshold < 0 ||
conf->rts_threshold > 2347) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"rts_threshold %d",
line, conf->rts_threshold);
errors++;
}
} else if (os_strcmp(buf, "fragm_threshold") == 0) {
conf->fragm_threshold = atoi(pos);
if (conf->fragm_threshold < 256 ||
conf->fragm_threshold > 2346) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"fragm_threshold %d",
line, conf->fragm_threshold);
errors++;
}
} else if (os_strcmp(buf, "send_probe_response") == 0) {
int val = atoi(pos);
if (val != 0 && val != 1) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"send_probe_response %d (expected "
"0 or 1)", line, val);
} else
conf->send_probe_response = val;
} else if (os_strcmp(buf, "supported_rates") == 0) {
if (hostapd_parse_rates(&conf->supported_rates, pos)) {
wpa_printf(MSG_ERROR, "Line %d: invalid rate "
"list", line);
errors++;
}
} else if (os_strcmp(buf, "basic_rates") == 0) {
if (hostapd_parse_rates(&conf->basic_rates, pos)) {
wpa_printf(MSG_ERROR, "Line %d: invalid rate "
"list", line);
errors++;
}
} else if (os_strcmp(buf, "preamble") == 0) {
if (atoi(pos))
conf->preamble = SHORT_PREAMBLE;
else
conf->preamble = LONG_PREAMBLE;
} else if (os_strcmp(buf, "ignore_broadcast_ssid") == 0) {
bss->ignore_broadcast_ssid = atoi(pos);
} else if (os_strcmp(buf, "wep_default_key") == 0) {
bss->ssid.wep.idx = atoi(pos);
if (bss->ssid.wep.idx > 3) {
wpa_printf(MSG_ERROR, "Invalid "
"wep_default_key index %d",
bss->ssid.wep.idx);
errors++;
}
} else if (os_strcmp(buf, "wep_key0") == 0 ||
os_strcmp(buf, "wep_key1") == 0 ||
os_strcmp(buf, "wep_key2") == 0 ||
os_strcmp(buf, "wep_key3") == 0) {
if (hostapd_config_read_wep(&bss->ssid.wep,
buf[7] - '0', pos)) {
wpa_printf(MSG_ERROR, "Line %d: invalid WEP "
"key '%s'", line, buf);
errors++;
}
#ifndef CONFIG_NO_VLAN
} else if (os_strcmp(buf, "dynamic_vlan") == 0) {
bss->ssid.dynamic_vlan = atoi(pos);
} else if (os_strcmp(buf, "vlan_file") == 0) {
if (hostapd_config_read_vlan_file(bss, pos)) {
wpa_printf(MSG_ERROR, "Line %d: failed to "
"read VLAN file '%s'", line, pos);
errors++;
}
#ifdef CONFIG_FULL_DYNAMIC_VLAN
} else if (os_strcmp(buf, "vlan_tagged_interface") == 0) {
bss->ssid.vlan_tagged_interface = os_strdup(pos);
#endif /* CONFIG_FULL_DYNAMIC_VLAN */
#endif /* CONFIG_NO_VLAN */
} else if (os_strcmp(buf, "ap_table_max_size") == 0) {
conf->ap_table_max_size = atoi(pos);
} else if (os_strcmp(buf, "ap_table_expiration_time") == 0) {
conf->ap_table_expiration_time = atoi(pos);
} else if (os_strncmp(buf, "tx_queue_", 9) == 0) {
if (hostapd_config_tx_queue(conf, buf, pos)) {
wpa_printf(MSG_ERROR, "Line %d: invalid TX "
"queue item", line);
errors++;
}
} else if (os_strcmp(buf, "wme_enabled") == 0 ||
os_strcmp(buf, "wmm_enabled") == 0) {
bss->wmm_enabled = atoi(pos);
} else if (os_strcmp(buf, "uapsd_advertisement_enabled") == 0) {
bss->wmm_uapsd = atoi(pos);
} else if (os_strncmp(buf, "wme_ac_", 7) == 0 ||
os_strncmp(buf, "wmm_ac_", 7) == 0) {
if (hostapd_config_wmm_ac(conf, buf, pos)) {
wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
"ac item", line);
errors++;
}
} else if (os_strcmp(buf, "bss") == 0) {
if (hostapd_config_bss(conf, pos)) {
wpa_printf(MSG_ERROR, "Line %d: invalid bss "
"item", line);
errors++;
}
} else if (os_strcmp(buf, "bssid") == 0) {
if (hwaddr_aton(pos, bss->bssid)) {
wpa_printf(MSG_ERROR, "Line %d: invalid bssid "
"item", line);
errors++;
}
#ifdef CONFIG_IEEE80211W
} else if (os_strcmp(buf, "ieee80211w") == 0) {
bss->ieee80211w = atoi(pos);
} else if (os_strcmp(buf, "assoc_sa_query_max_timeout") == 0) {
bss->assoc_sa_query_max_timeout = atoi(pos);
if (bss->assoc_sa_query_max_timeout == 0) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"assoc_sa_query_max_timeout", line);
errors++;
}
} else if (os_strcmp(buf, "assoc_sa_query_retry_timeout") == 0)
{
bss->assoc_sa_query_retry_timeout = atoi(pos);
if (bss->assoc_sa_query_retry_timeout == 0) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"assoc_sa_query_retry_timeout",
line);
errors++;
}
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211N
} else if (os_strcmp(buf, "ieee80211n") == 0) {
conf->ieee80211n = atoi(pos);
} else if (os_strcmp(buf, "ht_capab") == 0) {
if (hostapd_config_ht_capab(conf, pos) < 0) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"ht_capab", line);
errors++;
}
#endif /* CONFIG_IEEE80211N */
} else if (os_strcmp(buf, "max_listen_interval") == 0) {
bss->max_listen_interval = atoi(pos);
} else if (os_strcmp(buf, "okc") == 0) {
bss->okc = atoi(pos);
#ifdef CONFIG_WPS
} else if (os_strcmp(buf, "wps_state") == 0) {
bss->wps_state = atoi(pos);
if (bss->wps_state < 0 || bss->wps_state > 2) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"wps_state", line);
errors++;
}
} else if (os_strcmp(buf, "ap_setup_locked") == 0) {
bss->ap_setup_locked = atoi(pos);
} else if (os_strcmp(buf, "uuid") == 0) {
if (uuid_str2bin(pos, bss->uuid)) {
wpa_printf(MSG_ERROR, "Line %d: invalid UUID",
line);
errors++;
}
} else if (os_strcmp(buf, "wps_pin_requests") == 0) {
os_free(bss->wps_pin_requests);
bss->wps_pin_requests = os_strdup(pos);
} else if (os_strcmp(buf, "device_name") == 0) {
if (os_strlen(pos) > 32) {
wpa_printf(MSG_ERROR, "Line %d: Too long "
"device_name", line);
errors++;
}
os_free(bss->device_name);
bss->device_name = os_strdup(pos);
} else if (os_strcmp(buf, "manufacturer") == 0) {
if (os_strlen(pos) > 64) {
wpa_printf(MSG_ERROR, "Line %d: Too long "
"manufacturer", line);
errors++;
}
os_free(bss->manufacturer);
bss->manufacturer = os_strdup(pos);
} else if (os_strcmp(buf, "model_name") == 0) {
if (os_strlen(pos) > 32) {
wpa_printf(MSG_ERROR, "Line %d: Too long "
"model_name", line);
errors++;
}
os_free(bss->model_name);
bss->model_name = os_strdup(pos);
} else if (os_strcmp(buf, "model_number") == 0) {
if (os_strlen(pos) > 32) {
wpa_printf(MSG_ERROR, "Line %d: Too long "
"model_number", line);
errors++;
}
os_free(bss->model_number);
bss->model_number = os_strdup(pos);
} else if (os_strcmp(buf, "serial_number") == 0) {
if (os_strlen(pos) > 32) {
wpa_printf(MSG_ERROR, "Line %d: Too long "
"serial_number", line);
errors++;
}
os_free(bss->serial_number);
bss->serial_number = os_strdup(pos);
} else if (os_strcmp(buf, "device_type") == 0) {
os_free(bss->device_type);
bss->device_type = os_strdup(pos);
} else if (os_strcmp(buf, "config_methods") == 0) {
os_free(bss->config_methods);
bss->config_methods = os_strdup(pos);
} else if (os_strcmp(buf, "os_version") == 0) {
if (hexstr2bin(pos, bss->os_version, 4)) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"os_version", line);
errors++;
}
} else if (os_strcmp(buf, "ap_pin") == 0) {
os_free(bss->ap_pin);
bss->ap_pin = os_strdup(pos);
} else if (os_strcmp(buf, "skip_cred_build") == 0) {
bss->skip_cred_build = atoi(pos);
} else if (os_strcmp(buf, "extra_cred") == 0) {
os_free(bss->extra_cred);
bss->extra_cred =
(u8 *) os_readfile(pos, &bss->extra_cred_len);
if (bss->extra_cred == NULL) {
wpa_printf(MSG_ERROR, "Line %d: could not "
"read Credentials from '%s'",
line, pos);
errors++;
}
} else if (os_strcmp(buf, "wps_cred_processing") == 0) {
bss->wps_cred_processing = atoi(pos);
} else if (os_strcmp(buf, "ap_settings") == 0) {
os_free(bss->ap_settings);
bss->ap_settings =
(u8 *) os_readfile(pos, &bss->ap_settings_len);
if (bss->ap_settings == NULL) {
wpa_printf(MSG_ERROR, "Line %d: could not "
"read AP Settings from '%s'",
line, pos);
errors++;
}
} else if (os_strcmp(buf, "upnp_iface") == 0) {
bss->upnp_iface = os_strdup(pos);
} else if (os_strcmp(buf, "friendly_name") == 0) {
os_free(bss->friendly_name);
bss->friendly_name = os_strdup(pos);
} else if (os_strcmp(buf, "manufacturer_url") == 0) {
os_free(bss->manufacturer_url);
bss->manufacturer_url = os_strdup(pos);
} else if (os_strcmp(buf, "model_description") == 0) {
os_free(bss->model_description);
bss->model_description = os_strdup(pos);
} else if (os_strcmp(buf, "model_url") == 0) {
os_free(bss->model_url);
bss->model_url = os_strdup(pos);
} else if (os_strcmp(buf, "upc") == 0) {
os_free(bss->upc);
bss->upc = os_strdup(pos);
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P_MANAGER
} else if (os_strcmp(buf, "manage_p2p") == 0) {
int manage = atoi(pos);
if (manage)
bss->p2p |= P2P_MANAGE;
else
bss->p2p &= ~P2P_MANAGE;
} else if (os_strcmp(buf, "allow_cross_connection") == 0) {
if (atoi(pos))
bss->p2p |= P2P_ALLOW_CROSS_CONNECTION;
else
bss->p2p &= ~P2P_ALLOW_CROSS_CONNECTION;
#endif /* CONFIG_P2P_MANAGER */
} else {
wpa_printf(MSG_ERROR, "Line %d: unknown configuration "
"item '%s'", line, buf);
errors++;
}
}
fclose(f);
for (i = 0; i < conf->num_bss; i++) {
bss = &conf->bss[i];
if (bss->individual_wep_key_len == 0) {
/* individual keys are not use; can use key idx0 for
* broadcast keys */
bss->broadcast_key_idx_min = 0;
}
/* Select group cipher based on the enabled pairwise cipher
* suites */
pairwise = 0;
if (bss->wpa & 1)
pairwise |= bss->wpa_pairwise;
if (bss->wpa & 2) {
if (bss->rsn_pairwise == 0)
bss->rsn_pairwise = bss->wpa_pairwise;
pairwise |= bss->rsn_pairwise;
}
if (pairwise & WPA_CIPHER_TKIP)
bss->wpa_group = WPA_CIPHER_TKIP;
else
bss->wpa_group = WPA_CIPHER_CCMP;
bss->radius->auth_server = bss->radius->auth_servers;
bss->radius->acct_server = bss->radius->acct_servers;
if (bss->wpa && bss->ieee802_1x) {
bss->ssid.security_policy = SECURITY_WPA;
} else if (bss->wpa) {
bss->ssid.security_policy = SECURITY_WPA_PSK;
} else if (bss->ieee802_1x) {
bss->ssid.security_policy = SECURITY_IEEE_802_1X;
bss->ssid.wep.default_len = bss->default_wep_key_len;
} else if (bss->ssid.wep.keys_set)
bss->ssid.security_policy = SECURITY_STATIC_WEP;
else
bss->ssid.security_policy = SECURITY_PLAINTEXT;
}
if (hostapd_config_check(conf))
errors++;
#ifndef WPA_IGNORE_CONFIG_ERRORS
if (errors) {
wpa_printf(MSG_ERROR, "%d errors found in configuration file "
"'%s'", errors, fname);
hostapd_config_free(conf);
conf = NULL;
}
#endif /* WPA_IGNORE_CONFIG_ERRORS */
return conf;
}
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