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freebsd-dev/contrib/wpa_supplicant/config.c
Sam Leffler f1fb6907ab Stripped down import of wpa_supplicant v0.3.8
2005-06-05 20:52:14 +00:00

1052 lines
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/*
* WPA Supplicant / Configuration file parser
* Copyright (c) 2003-2005, Jouni Malinen <jkmaline@cc.hut.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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "common.h"
#include "wpa.h"
#include "config.h"
#include "sha1.h"
#include "wpa_supplicant.h"
#include "eapol_sm.h"
#include "eap.h"
#include "config.h"
struct parse_data {
char *name;
int (*parser)(struct parse_data *data, int line, const char *value);
void *param1, *param2, *param3, *param4;
struct wpa_ssid *ssid;
int key_data;
};
static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line)
{
char *pos, *end, *sstart;
while (fgets(s, size, stream)) {
(*line)++;
s[size - 1] = '\0';
pos = s;
while (*pos == ' ' || *pos == '\t' || *pos == '\r')
pos++;
if (*pos == '#' || *pos == '\n' || *pos == '\0' ||
*pos == '\r')
continue;
/* Remove # comments unless they are within a double quoted
* string. Remove trailing white space. */
sstart = strchr(pos, '"');
if (sstart)
sstart = strchr(sstart + 1, '"');
if (!sstart)
sstart = pos;
end = strchr(sstart, '#');
if (end)
*end-- = '\0';
else
end = pos + strlen(pos) - 1;
while (end > pos &&
(*end == '\n' || *end == ' ' || *end == '\t' ||
*end == '\r')) {
*end-- = '\0';
}
if (*pos == '\0')
continue;
return pos;
}
return NULL;
}
static char * wpa_config_parse_string(const char *value, size_t *len)
{
if (*value == '"') {
char *pos;
value++;
pos = strchr(value, '"');
if (pos == NULL || pos[1] != '\0')
return NULL;
*pos = '\0';
*len = strlen(value);
return strdup(value);
} else {
u8 *str;
int hlen = strlen(value);
if (hlen % 1)
return NULL;
*len = hlen / 2;
str = malloc(*len);
if (str == NULL)
return NULL;
if (hexstr2bin(value, str, *len)) {
free(str);
return NULL;
}
return (char *) str;
}
}
static int wpa_config_parse_str(struct parse_data *data,
int line, const char *value)
{
size_t res_len, *dst_len;
char **dst;
dst = (char **) (((u8 *) data->ssid) + (long) data->param1);
dst_len = (size_t *) (((u8 *) data->ssid) + (long) data->param2);
free(*dst);
*dst = wpa_config_parse_string(value, &res_len);
if (*dst == NULL) {
wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
line, data->name, value);
return -1;
}
if (data->param2)
*dst_len = res_len;
if (data->key_data) {
wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
(u8 *) *dst, res_len);
} else {
wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
(u8 *) *dst, res_len);
}
if (data->param3 && res_len < (size_t) data->param3) {
wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
"min_len=%ld)", line, data->name,
(unsigned long) res_len, (long) data->param3);
free(*dst);
*dst = NULL;
return -1;
}
if (data->param4 && res_len > (size_t) data->param4) {
wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
"max_len=%ld)", line, data->name,
(unsigned long) res_len, (long) data->param4);
free(*dst);
*dst = NULL;
return -1;
}
return 0;
}
static int wpa_config_parse_int(struct parse_data *data,
int line, const char *value)
{
int *dst;
dst = (int *) (((u8 *) data->ssid) + (long) data->param1);
*dst = atoi(value);
wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
if (data->param3 && *dst < (long) data->param3) {
wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
"min_value=%ld)", line, data->name, *dst,
(long) data->param3);
*dst = (long) data->param3;
return -1;
}
if (data->param4 && *dst > (long) data->param4) {
wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
"max_value=%ld)", line, data->name, *dst,
(long) data->param4);
*dst = (long) data->param4;
return -1;
}
return 0;
}
static int wpa_config_parse_bssid(struct parse_data *data, int line,
const char *value)
{
if (hwaddr_aton(value, data->ssid->bssid)) {
wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
line, value);
return -1;
}
data->ssid->bssid_set = 1;
wpa_hexdump(MSG_MSGDUMP, "BSSID", data->ssid->bssid, ETH_ALEN);
return 0;
}
static int wpa_config_parse_psk(struct parse_data *data, int line,
const char *value)
{
if (*value == '"') {
char *pos;
int len;
value++;
pos = strrchr(value, '"');
if (pos)
*pos = '\0';
len = strlen(value);
if (len < 8 || len > 63) {
wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
"length %d (expected: 8..63) '%s'.",
line, len, value);
return -1;
}
wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
(u8 *) value, len);
data->ssid->passphrase = strdup(value);
return data->ssid->passphrase == NULL ? -1 : 0;
}
if (hexstr2bin(value, data->ssid->psk, PMK_LEN) ||
value[PMK_LEN * 2] != '\0') {
wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
line, value);
return -1;
}
data->ssid->psk_set = 1;
wpa_hexdump_key(MSG_MSGDUMP, "PSK", data->ssid->psk, PMK_LEN);
return 0;
}
static int wpa_config_parse_proto(struct parse_data *data, int line,
const char *value)
{
int val = 0, last, errors = 0;
char *start, *end, *buf;
buf = 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 (strcmp(start, "WPA") == 0)
val |= WPA_PROTO_WPA;
else if (strcmp(start, "RSN") == 0 ||
strcmp(start, "WPA2") == 0)
val |= WPA_PROTO_RSN;
else {
wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
line, start);
errors++;
}
if (last)
break;
start = end + 1;
}
free(buf);
if (val == 0) {
wpa_printf(MSG_ERROR,
"Line %d: no proto values configured.", line);
errors++;
}
wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
data->ssid->proto = val;
return errors ? -1 : 0;
}
static int wpa_config_parse_key_mgmt(struct parse_data *data, int line,
const char *value)
{
int val = 0, last, errors = 0;
char *start, *end, *buf;
buf = 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 (strcmp(start, "WPA-PSK") == 0)
val |= WPA_KEY_MGMT_PSK;
else if (strcmp(start, "WPA-EAP") == 0)
val |= WPA_KEY_MGMT_IEEE8021X;
else if (strcmp(start, "IEEE8021X") == 0)
val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
else if (strcmp(start, "NONE") == 0)
val |= WPA_KEY_MGMT_NONE;
else if (strcmp(start, "WPA-NONE") == 0)
val |= WPA_KEY_MGMT_WPA_NONE;
else {
wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
line, start);
errors++;
}
if (last)
break;
start = end + 1;
}
free(buf);
if (val == 0) {
wpa_printf(MSG_ERROR,
"Line %d: no key_mgmt values configured.", line);
errors++;
}
wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
data->ssid->key_mgmt = val;
return errors ? -1 : 0;
}
static int wpa_config_parse_cipher(int line, const char *value)
{
int val = 0, last;
char *start, *end, *buf;
buf = 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 (strcmp(start, "CCMP") == 0)
val |= WPA_CIPHER_CCMP;
else if (strcmp(start, "TKIP") == 0)
val |= WPA_CIPHER_TKIP;
else if (strcmp(start, "WEP104") == 0)
val |= WPA_CIPHER_WEP104;
else if (strcmp(start, "WEP40") == 0)
val |= WPA_CIPHER_WEP40;
else if (strcmp(start, "NONE") == 0)
val |= WPA_CIPHER_NONE;
else {
wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
line, start);
free(buf);
return -1;
}
if (last)
break;
start = end + 1;
}
free(buf);
if (val == 0) {
wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
line);
return -1;
}
return val;
}
static int wpa_config_parse_pairwise(struct parse_data *data, int line,
const char *value)
{
int val;
val = wpa_config_parse_cipher(line, value);
if (val == -1)
return -1;
if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE)) {
wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
"(0x%x).", line, val);
return -1;
}
wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
data->ssid->pairwise_cipher = val;
return 0;
}
static int wpa_config_parse_group(struct parse_data *data, int line,
const char *value)
{
int val;
val = wpa_config_parse_cipher(line, value);
if (val == -1)
return -1;
if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_WEP104 |
WPA_CIPHER_WEP40)) {
wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
"(0x%x).", line, val);
return -1;
}
wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
data->ssid->group_cipher = val;
return 0;
}
static int wpa_config_parse_auth_alg(struct parse_data *data, int line,
const char *value)
{
int val = 0, last, errors = 0;
char *start, *end, *buf;
buf = 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 (strcmp(start, "OPEN") == 0)
val |= WPA_AUTH_ALG_OPEN;
else if (strcmp(start, "SHARED") == 0)
val |= WPA_AUTH_ALG_SHARED;
else if (strcmp(start, "LEAP") == 0)
val |= WPA_AUTH_ALG_LEAP;
else {
wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
line, start);
errors++;
}
if (last)
break;
start = end + 1;
}
free(buf);
if (val == 0) {
wpa_printf(MSG_ERROR,
"Line %d: no auth_alg values configured.", line);
errors++;
}
wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
data->ssid->auth_alg = val;
return errors ? -1 : 0;
}
static int wpa_config_parse_eap(struct parse_data *data, int line,
const char *value)
{
int last, errors = 0;
char *start, *end, *buf;
u8 *methods = NULL, *tmp;
size_t num_methods = 0;
buf = 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';
tmp = methods;
methods = realloc(methods, num_methods + 1);
if (methods == NULL) {
free(tmp);
return -1;
}
methods[num_methods] = eap_get_type(start);
if (methods[num_methods] == EAP_TYPE_NONE) {
wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
"'%s'", line, start);
wpa_printf(MSG_ERROR, "You may need to add support for"
" this EAP method during wpa_supplicant\n"
"build time configuration.\n"
"See README for more information.");
errors++;
} else if (methods[num_methods] == EAP_TYPE_LEAP)
data->ssid->leap++;
else
data->ssid->non_leap++;
num_methods++;
if (last)
break;
start = end + 1;
}
free(buf);
tmp = methods;
methods = realloc(methods, num_methods + 1);
if (methods == NULL) {
free(tmp);
return -1;
}
methods[num_methods] = EAP_TYPE_NONE;
num_methods++;
wpa_hexdump(MSG_MSGDUMP, "eap methods", methods, num_methods);
data->ssid->eap_methods = methods;
return errors ? -1 : 0;
}
static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
const char *value, int idx)
{
char *buf, title[20];
buf = wpa_config_parse_string(value, len);
if (buf == NULL) {
wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
line, idx, value);
return -1;
}
if (*len > MAX_WEP_KEY_LEN) {
wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
line, idx, value);
free(buf);
return -1;
}
memcpy(key, buf, *len);
free(buf);
snprintf(title, sizeof(title), "wep_key%d", idx);
wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
return 0;
}
static int wpa_config_parse_wep_key0(struct parse_data *data, int line,
const char *value)
{
return wpa_config_parse_wep_key(data->ssid->wep_key[0],
&data->ssid->wep_key_len[0], line,
value, 0);
}
static int wpa_config_parse_wep_key1(struct parse_data *data, int line,
const char *value)
{
return wpa_config_parse_wep_key(data->ssid->wep_key[1],
&data->ssid->wep_key_len[1], line,
value, 1);
}
static int wpa_config_parse_wep_key2(struct parse_data *data, int line,
const char *value)
{
return wpa_config_parse_wep_key(data->ssid->wep_key[2],
&data->ssid->wep_key_len[2], line,
value, 2);
}
static int wpa_config_parse_wep_key3(struct parse_data *data, int line,
const char *value)
{
return wpa_config_parse_wep_key(data->ssid->wep_key[3],
&data->ssid->wep_key_len[3], line,
value, 3);
}
#define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
#define STR(f) .name = #f, .parser = wpa_config_parse_str, .param1 = OFFSET(f)
#define STR_LEN(f) STR(f), .param2 = OFFSET(f ## _len)
#define STR_RANGE(f, min, max) STR_LEN(f), .param3 = (void *) (min), \
.param4 = (void *) (max)
#define INT(f) .name = #f, .parser = wpa_config_parse_int, \
.param1 = OFFSET(f), .param2 = (void *) 0
#define INT_RANGE(f, min, max) INT(f), .param3 = (void *) (min), \
.param4 = (void *) (max)
#define FUNC(f) .name = #f, .parser = wpa_config_parse_ ## f
static struct parse_data ssid_fields[] = {
{ STR_RANGE(ssid, 0, MAX_SSID_LEN) },
{ INT_RANGE(scan_ssid, 0, 1) },
{ FUNC(bssid) },
{ FUNC(psk), .key_data = 1 },
{ FUNC(proto) },
{ FUNC(key_mgmt) },
{ FUNC(pairwise) },
{ FUNC(group) },
{ FUNC(auth_alg) },
{ FUNC(eap) },
{ STR_LEN(identity) },
{ STR_LEN(anonymous_identity) },
{ STR_RANGE(eappsk, EAP_PSK_LEN, EAP_PSK_LEN), .key_data = 1 },
{ STR_LEN(nai) },
{ STR_LEN(server_nai) },
{ STR_LEN(password), .key_data = 1 },
{ STR(ca_cert) },
{ STR(client_cert) },
{ STR(private_key) },
{ STR(private_key_passwd), .key_data = 1 },
{ STR(dh_file) },
{ STR(subject_match) },
{ STR(ca_cert2) },
{ STR(client_cert2) },
{ STR(private_key2) },
{ STR(private_key2_passwd), .key_data = 1 },
{ STR(dh_file2) },
{ STR(subject_match2) },
{ STR(phase1) },
{ STR(phase2) },
{ STR(pcsc) },
{ STR(pin), .key_data = 1 },
{ INT(eapol_flags) },
{ FUNC(wep_key0), .key_data = 1 },
{ FUNC(wep_key1), .key_data = 1 },
{ FUNC(wep_key2), .key_data = 1 },
{ FUNC(wep_key3), .key_data = 1 },
{ INT(wep_tx_keyidx) },
{ INT(priority) },
{ INT(eap_workaround) },
{ STR(pac_file) },
{ INT_RANGE(mode, 0, 1) },
};
#undef OFFSET
#undef STR
#undef STR_LEN
#undef STR_RANGE
#undef INT
#undef INT_RANGE
#undef FUNC
#define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
{
struct wpa_ssid *ssid;
int errors = 0, i, end = 0;
char buf[256], *pos, *pos2;
wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
*line);
ssid = (struct wpa_ssid *) malloc(sizeof(*ssid));
if (ssid == NULL)
return NULL;
memset(ssid, 0, sizeof(*ssid));
ssid->id = id;
ssid->proto = WPA_PROTO_WPA | WPA_PROTO_RSN;
ssid->pairwise_cipher = WPA_CIPHER_CCMP | WPA_CIPHER_TKIP;
ssid->group_cipher = WPA_CIPHER_CCMP | WPA_CIPHER_TKIP |
WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40;
ssid->key_mgmt = WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X;
ssid->eapol_flags = EAPOL_FLAG_REQUIRE_KEY_UNICAST |
EAPOL_FLAG_REQUIRE_KEY_BROADCAST;
ssid->eap_workaround = (unsigned int) -1;
while ((pos = wpa_config_get_line(buf, sizeof(buf), f, line))) {
if (strcmp(pos, "}") == 0) {
end = 1;
break;
}
pos2 = strchr(pos, '=');
if (pos2 == NULL) {
wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
"'%s'.", *line, pos);
errors++;
continue;
}
*pos2++ = '\0';
if (*pos2 == '"') {
if (strchr(pos2 + 1, '"') == NULL) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"quotation '%s'.", *line, pos2);
errors++;
continue;
}
}
for (i = 0; i < NUM_SSID_FIELDS; i++) {
struct parse_data *field = &ssid_fields[i];
if (strcmp(pos, field->name) != 0)
continue;
field->ssid = ssid;
if (field->parser(field, *line, pos2)) {
wpa_printf(MSG_ERROR, "Line %d: failed to "
"parse %s '%s'.", *line, pos, pos2);
errors++;
}
break;
}
if (i == NUM_SSID_FIELDS) {
wpa_printf(MSG_ERROR, "Line %d: unknown network field "
"'%s'.", *line, pos);
errors++;
}
}
if (!end) {
wpa_printf(MSG_ERROR, "Line %d: network block was not "
"terminated properly.", *line);
errors++;
}
if (ssid->passphrase) {
if (ssid->psk_set) {
wpa_printf(MSG_ERROR, "Line %d: both PSK and "
"passphrase configured.", *line);
errors++;
}
pbkdf2_sha1(ssid->passphrase,
(char *) ssid->ssid, ssid->ssid_len, 4096,
ssid->psk, PMK_LEN);
wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
ssid->psk, PMK_LEN);
ssid->psk_set = 1;
}
if ((ssid->key_mgmt & WPA_KEY_MGMT_PSK) && !ssid->psk_set) {
wpa_printf(MSG_ERROR, "Line %d: WPA-PSK accepted for key "
"management, but no PSK configured.", *line);
errors++;
}
if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
!(ssid->pairwise_cipher & WPA_CIPHER_CCMP)) {
/* Group cipher cannot be stronger than the pairwise cipher. */
wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
" list since it was not allowed for pairwise "
"cipher", *line);
ssid->group_cipher &= ~WPA_CIPHER_CCMP;
}
if (errors) {
free(ssid);
ssid = NULL;
}
return ssid;
}
static int wpa_config_add_prio_network(struct wpa_config *config,
struct wpa_ssid *ssid)
{
int prio;
struct wpa_ssid *prev, **nlist;
for (prio = 0; prio < config->num_prio; prio++) {
prev = config->pssid[prio];
if (prev->priority == ssid->priority) {
while (prev->pnext)
prev = prev->pnext;
prev->pnext = ssid;
return 0;
}
}
/* First network for this priority - add new priority list */
nlist = realloc(config->pssid,
(config->num_prio + 1) * sizeof(struct wpa_ssid *));
if (nlist == NULL)
return -1;
for (prio = 0; prio < config->num_prio; prio++) {
if (nlist[prio]->priority < ssid->priority)
break;
}
memmove(&nlist[prio + 1], &nlist[prio],
(config->num_prio - prio) * sizeof(struct wpa_ssid *));
nlist[prio] = ssid;
config->num_prio++;
config->pssid = nlist;
return 0;
}
struct wpa_config * wpa_config_read(const char *config_file)
{
FILE *f;
char buf[256], *pos;
int errors = 0, line = 0;
struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
struct wpa_config *config;
int id = 0, prio;
config = malloc(sizeof(*config));
if (config == NULL)
return NULL;
memset(config, 0, sizeof(*config));
config->eapol_version = 1;
config->ap_scan = 1;
config->fast_reauth = 1;
wpa_printf(MSG_DEBUG, "Reading configuration file '%s'",
config_file);
f = fopen(config_file, "r");
if (f == NULL) {
free(config);
return NULL;
}
while ((pos = wpa_config_get_line(buf, sizeof(buf), f, &line))) {
if (strcmp(pos, "network={") == 0) {
ssid = wpa_config_read_network(f, &line, id++);
if (ssid == NULL) {
wpa_printf(MSG_ERROR, "Line %d: failed to "
"parse network block.", line);
errors++;
continue;
}
if (head == NULL) {
head = tail = ssid;
} else {
tail->next = ssid;
tail = ssid;
}
if (wpa_config_add_prio_network(config, ssid)) {
wpa_printf(MSG_ERROR, "Line %d: failed to add "
"network block to priority list.",
line);
errors++;
continue;
}
#ifdef CONFIG_CTRL_IFACE
} else if (strncmp(pos, "ctrl_interface=", 15) == 0) {
free(config->ctrl_interface);
config->ctrl_interface = strdup(pos + 15);
wpa_printf(MSG_DEBUG, "ctrl_interface='%s'",
config->ctrl_interface);
#ifndef CONFIG_CTRL_IFACE_UDP
} else if (strncmp(pos, "ctrl_interface_group=", 21) == 0) {
struct group *grp;
char *endp;
const char *group = pos + 21;
grp = getgrnam(group);
if (grp) {
config->ctrl_interface_gid = grp->gr_gid;
config->ctrl_interface_gid_set = 1;
wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d"
" (from group name '%s')",
(int) config->ctrl_interface_gid,
group);
continue;
}
/* Group name not found - try to parse this as gid */
config->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;
}
wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d",
(int) config->ctrl_interface_gid);
#endif /* CONFIG_CTRL_IFACE_UDP */
#endif /* CONFIG_CTRL_IFACE */
} else if (strncmp(pos, "eapol_version=", 14) == 0) {
config->eapol_version = atoi(pos + 14);
if (config->eapol_version < 1 ||
config->eapol_version > 2) {
wpa_printf(MSG_ERROR, "Line %d: Invalid EAPOL "
"version (%d): '%s'.",
line, config->eapol_version, pos);
errors++;
continue;
}
wpa_printf(MSG_DEBUG, "eapol_version=%d",
config->eapol_version);
} else if (strncmp(pos, "ap_scan=", 8) == 0) {
config->ap_scan = atoi(pos + 8);
wpa_printf(MSG_DEBUG, "ap_scan=%d", config->ap_scan);
} else if (strncmp(pos, "fast_reauth=", 12) == 0) {
config->fast_reauth = atoi(pos + 12);
wpa_printf(MSG_DEBUG, "fast_reauth=%d",
config->fast_reauth);
} else {
wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
"line '%s'.", line, pos);
errors++;
continue;
}
}
fclose(f);
config->ssid = head;
for (prio = 0; prio < config->num_prio; prio++) {
ssid = config->pssid[prio];
wpa_printf(MSG_DEBUG, "Priority group %d",
ssid->priority);
while (ssid) {
wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
ssid->id,
wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
ssid = ssid->pnext;
}
}
if (errors) {
wpa_config_free(config);
config = NULL;
head = NULL;
}
return config;
}
void wpa_config_free(struct wpa_config *config)
{
struct wpa_ssid *ssid, *prev = NULL;
ssid = config->ssid;
while (ssid) {
prev = ssid;
ssid = ssid->next;
free(prev->ssid);
free(prev->passphrase);
free(prev->eap_methods);
free(prev->identity);
free(prev->anonymous_identity);
free(prev->eappsk);
free(prev->nai);
free(prev->server_nai);
free(prev->password);
free(prev->ca_cert);
free(prev->client_cert);
free(prev->private_key);
free(prev->private_key_passwd);
free(prev->dh_file);
free(prev->subject_match);
free(prev->ca_cert2);
free(prev->client_cert2);
free(prev->private_key2);
free(prev->private_key2_passwd);
free(prev->dh_file2);
free(prev->subject_match2);
free(prev->phase1);
free(prev->phase2);
free(prev->pcsc);
free(prev->pin);
free(prev->otp);
free(prev->pending_req_otp);
free(prev->pac_file);
free(prev);
}
free(config->ctrl_interface);
free(config->pssid);
free(config);
}
int wpa_config_allowed_eap_method(struct wpa_ssid *ssid, int method)
{
u8 *pos;
if (ssid == NULL || ssid->eap_methods == NULL)
return 1;
pos = ssid->eap_methods;
while (*pos != EAP_TYPE_NONE) {
if (*pos == method)
return 1;
pos++;
}
return 0;
}
const char * wpa_cipher_txt(int cipher)
{
switch (cipher) {
case WPA_CIPHER_NONE:
return "NONE";
case WPA_CIPHER_WEP40:
return "WEP-40";
case WPA_CIPHER_WEP104:
return "WEP-104";
case WPA_CIPHER_TKIP:
return "TKIP";
case WPA_CIPHER_CCMP:
return "CCMP";
default:
return "UNKNOWN";
}
}
const char * wpa_key_mgmt_txt(int key_mgmt, int proto)
{
switch (key_mgmt) {
case WPA_KEY_MGMT_IEEE8021X:
return proto == WPA_PROTO_RSN ?
"WPA2/IEEE 802.1X/EAP" : "WPA/IEEE 802.1X/EAP";
case WPA_KEY_MGMT_PSK:
return proto == WPA_PROTO_RSN ?
"WPA2-PSK" : "WPA-PSK";
case WPA_KEY_MGMT_NONE:
return "NONE";
case WPA_KEY_MGMT_IEEE8021X_NO_WPA:
return "IEEE 802.1X (no WPA)";
default:
return "UNKNOWN";
}
}
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