M7350/external/wpa_supplicant_8/wpa_supplicant/config_file.c

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2024-09-09 08:52:07 +00:00
/*
* WPA Supplicant / Configuration backend: text file
* Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*
* This file implements a configuration backend for text files. All the
* configuration information is stored in a text file that uses a format
* described in the sample configuration file, wpa_supplicant.conf.
*/
#include "includes.h"
#include "common.h"
#include "config.h"
#include "base64.h"
#include "uuid.h"
#include "p2p/p2p.h"
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#include "eap_peer/eap_methods.h"
#include "eap_peer/eap.h"
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#ifdef ANDROID
#include <sys/stat.h>
#endif
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static int newline_terminated(const char *buf, size_t buflen)
{
size_t len = os_strlen(buf);
if (len == 0)
return 0;
if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
buf[len - 1] != '\n')
return 0;
return 1;
}
static void skip_line_end(FILE *stream)
{
char buf[100];
while (fgets(buf, sizeof(buf), stream)) {
buf[sizeof(buf) - 1] = '\0';
if (newline_terminated(buf, sizeof(buf)))
return;
}
}
/**
* wpa_config_get_line - Read the next configuration file line
* @s: Buffer for the line
* @size: The buffer length
* @stream: File stream to read from
* @line: Pointer to a variable storing the file line number
* @_pos: Buffer for the pointer to the beginning of data on the text line or
* %NULL if not needed (returned value used instead)
* Returns: Pointer to the beginning of data on the text line or %NULL if no
* more text lines are available.
*
* This function reads the next non-empty line from the configuration file and
* removes comments. The returned string is guaranteed to be null-terminated.
*/
static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
char **_pos)
{
char *pos, *end, *sstart;
while (fgets(s, size, stream)) {
(*line)++;
s[size - 1] = '\0';
if (!newline_terminated(s, size)) {
/*
* The line was truncated - skip rest of it to avoid
* confusing error messages.
*/
wpa_printf(MSG_INFO, "Long line in configuration file "
"truncated");
skip_line_end(stream);
}
pos = s;
/* Skip white space from the beginning of line. */
while (*pos == ' ' || *pos == '\t' || *pos == '\r')
pos++;
/* Skip comment lines and empty lines */
if (*pos == '#' || *pos == '\n' || *pos == '\0')
continue;
/*
* Remove # comments unless they are within a double quoted
* string.
*/
sstart = os_strchr(pos, '"');
if (sstart)
sstart = os_strrchr(sstart + 1, '"');
if (!sstart)
sstart = pos;
end = os_strchr(sstart, '#');
if (end)
*end-- = '\0';
else
end = pos + os_strlen(pos) - 1;
/* Remove trailing white space. */
while (end > pos &&
(*end == '\n' || *end == ' ' || *end == '\t' ||
*end == '\r'))
*end-- = '\0';
if (*pos == '\0')
continue;
if (_pos)
*_pos = pos;
return pos;
}
if (_pos)
*_pos = NULL;
return NULL;
}
static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
{
int errors = 0;
if (ssid->passphrase) {
if (ssid->psk_set) {
wpa_printf(MSG_ERROR, "Line %d: both PSK and "
"passphrase configured.", line);
errors++;
}
wpa_config_update_psk(ssid);
}
if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
!(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
!(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
/* 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;
}
return errors;
}
static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
{
struct wpa_ssid *ssid;
int errors = 0, end = 0;
char buf[2000], *pos, *pos2;
wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
*line);
ssid = os_zalloc(sizeof(*ssid));
if (ssid == NULL)
return NULL;
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dl_list_init(&ssid->psk_list);
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ssid->id = id;
wpa_config_set_network_defaults(ssid);
while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
if (os_strcmp(pos, "}") == 0) {
end = 1;
break;
}
pos2 = os_strchr(pos, '=');
if (pos2 == NULL) {
wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
"'%s'.", *line, pos);
errors++;
continue;
}
*pos2++ = '\0';
if (*pos2 == '"') {
if (os_strchr(pos2 + 1, '"') == NULL) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"quotation '%s'.", *line, pos2);
errors++;
continue;
}
}
if (wpa_config_set(ssid, pos, pos2, *line) < 0)
errors++;
}
if (!end) {
wpa_printf(MSG_ERROR, "Line %d: network block was not "
"terminated properly.", *line);
errors++;
}
errors += wpa_config_validate_network(ssid, *line);
if (errors) {
wpa_config_free_ssid(ssid);
ssid = NULL;
}
return ssid;
}
static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
{
struct wpa_cred *cred;
int errors = 0, end = 0;
char buf[256], *pos, *pos2;
wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
cred = os_zalloc(sizeof(*cred));
if (cred == NULL)
return NULL;
cred->id = id;
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cred->sim_num = DEFAULT_USER_SELECTED_SIM;
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while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
if (os_strcmp(pos, "}") == 0) {
end = 1;
break;
}
pos2 = os_strchr(pos, '=');
if (pos2 == NULL) {
wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
"'%s'.", *line, pos);
errors++;
continue;
}
*pos2++ = '\0';
if (*pos2 == '"') {
if (os_strchr(pos2 + 1, '"') == NULL) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"quotation '%s'.", *line, pos2);
errors++;
continue;
}
}
if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
errors++;
}
if (!end) {
wpa_printf(MSG_ERROR, "Line %d: cred block was not "
"terminated properly.", *line);
errors++;
}
if (errors) {
wpa_config_free_cred(cred);
cred = NULL;
}
return cred;
}
#ifndef CONFIG_NO_CONFIG_BLOBS
static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
const char *name)
{
struct wpa_config_blob *blob;
char buf[256], *pos;
unsigned char *encoded = NULL, *nencoded;
int end = 0;
size_t encoded_len = 0, len;
wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
*line, name);
while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
if (os_strcmp(pos, "}") == 0) {
end = 1;
break;
}
len = os_strlen(pos);
nencoded = os_realloc(encoded, encoded_len + len);
if (nencoded == NULL) {
wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
"blob", *line);
os_free(encoded);
return NULL;
}
encoded = nencoded;
os_memcpy(encoded + encoded_len, pos, len);
encoded_len += len;
}
if (!end) {
wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
"properly", *line);
os_free(encoded);
return NULL;
}
blob = os_zalloc(sizeof(*blob));
if (blob == NULL) {
os_free(encoded);
return NULL;
}
blob->name = os_strdup(name);
blob->data = base64_decode(encoded, encoded_len, &blob->len);
os_free(encoded);
if (blob->name == NULL || blob->data == NULL) {
wpa_config_free_blob(blob);
return NULL;
}
return blob;
}
static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
int *line, char *bname)
{
char *name_end;
struct wpa_config_blob *blob;
name_end = os_strchr(bname, '=');
if (name_end == NULL) {
wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
*line);
return -1;
}
*name_end = '\0';
blob = wpa_config_read_blob(f, line, bname);
if (blob == NULL) {
wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
*line, bname);
return -1;
}
wpa_config_set_blob(config, blob);
return 0;
}
#endif /* CONFIG_NO_CONFIG_BLOBS */
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struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
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{
FILE *f;
char buf[512], *pos;
int errors = 0, line = 0;
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struct wpa_ssid *ssid, *tail, *head;
struct wpa_cred *cred, *cred_tail, *cred_head;
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struct wpa_config *config;
int id = 0;
int cred_id = 0;
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if (name == NULL)
return NULL;
if (cfgp)
config = cfgp;
else
config = wpa_config_alloc_empty(NULL, NULL);
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if (config == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate config file "
"structure");
return NULL;
}
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tail = head = config->ssid;
while (tail && tail->next)
tail = tail->next;
cred_tail = cred_head = config->cred;
while (cred_tail && cred_tail->next)
cred_tail = cred_tail->next;
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wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
f = fopen(name, "r");
if (f == NULL) {
wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
"error: %s", name, strerror(errno));
os_free(config);
return NULL;
}
while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
if (os_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;
}
} else if (os_strcmp(pos, "cred={") == 0) {
cred = wpa_config_read_cred(f, &line, cred_id++);
if (cred == NULL) {
wpa_printf(MSG_ERROR, "Line %d: failed to "
"parse cred block.", line);
errors++;
continue;
}
if (cred_head == NULL) {
cred_head = cred_tail = cred;
} else {
cred_tail->next = cred;
cred_tail = cred;
}
#ifndef CONFIG_NO_CONFIG_BLOBS
} else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
if (wpa_config_process_blob(config, f, &line, pos + 12)
< 0) {
wpa_printf(MSG_ERROR, "Line %d: failed to "
"process blob.", line);
errors++;
continue;
}
#endif /* CONFIG_NO_CONFIG_BLOBS */
} else if (wpa_config_process_global(config, pos, line) < 0) {
wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
"line '%s'.", line, pos);
errors++;
continue;
}
}
fclose(f);
config->ssid = head;
wpa_config_debug_dump_networks(config);
config->cred = cred_head;
#ifndef WPA_IGNORE_CONFIG_ERRORS
if (errors) {
wpa_config_free(config);
config = NULL;
head = NULL;
}
#endif /* WPA_IGNORE_CONFIG_ERRORS */
return config;
}
#ifndef CONFIG_NO_CONFIG_WRITE
static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, field);
if (value == NULL)
return;
fprintf(f, "\t%s=%s\n", field, value);
os_free(value);
}
static void write_int(FILE *f, const char *field, int value, int def)
{
if (value == def)
return;
fprintf(f, "\t%s=%d\n", field, value);
}
static void write_bssid(FILE *f, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, "bssid");
if (value == NULL)
return;
fprintf(f, "\tbssid=%s\n", value);
os_free(value);
}
static void write_psk(FILE *f, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, "psk");
if (value == NULL)
return;
fprintf(f, "\tpsk=%s\n", value);
os_free(value);
}
static void write_proto(FILE *f, struct wpa_ssid *ssid)
{
char *value;
if (ssid->proto == DEFAULT_PROTO)
return;
value = wpa_config_get(ssid, "proto");
if (value == NULL)
return;
if (value[0])
fprintf(f, "\tproto=%s\n", value);
os_free(value);
}
static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
{
char *value;
if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
return;
value = wpa_config_get(ssid, "key_mgmt");
if (value == NULL)
return;
if (value[0])
fprintf(f, "\tkey_mgmt=%s\n", value);
os_free(value);
}
static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
{
char *value;
if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
return;
value = wpa_config_get(ssid, "pairwise");
if (value == NULL)
return;
if (value[0])
fprintf(f, "\tpairwise=%s\n", value);
os_free(value);
}
static void write_group(FILE *f, struct wpa_ssid *ssid)
{
char *value;
if (ssid->group_cipher == DEFAULT_GROUP)
return;
value = wpa_config_get(ssid, "group");
if (value == NULL)
return;
if (value[0])
fprintf(f, "\tgroup=%s\n", value);
os_free(value);
}
static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
{
char *value;
if (ssid->auth_alg == 0)
return;
value = wpa_config_get(ssid, "auth_alg");
if (value == NULL)
return;
if (value[0])
fprintf(f, "\tauth_alg=%s\n", value);
os_free(value);
}
#ifdef IEEE8021X_EAPOL
static void write_eap(FILE *f, struct wpa_ssid *ssid)
{
char *value;
value = wpa_config_get(ssid, "eap");
if (value == NULL)
return;
if (value[0])
fprintf(f, "\teap=%s\n", value);
os_free(value);
}
#endif /* IEEE8021X_EAPOL */
static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
{
char field[20], *value;
int res;
res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
if (res < 0 || (size_t) res >= sizeof(field))
return;
value = wpa_config_get(ssid, field);
if (value) {
fprintf(f, "\t%s=%s\n", field, value);
os_free(value);
}
}
#ifdef CONFIG_P2P
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static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
if (value == NULL)
return;
fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
os_free(value);
}
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static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
{
char *value = wpa_config_get(ssid, "p2p_client_list");
if (value == NULL)
return;
fprintf(f, "\tp2p_client_list=%s\n", value);
os_free(value);
}
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static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
{
struct psk_list_entry *psk;
char hex[32 * 2 + 1];
dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
}
}
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#endif /* CONFIG_P2P */
static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
{
int i;
#define STR(t) write_str(f, #t, ssid)
#define INT(t) write_int(f, #t, ssid->t, 0)
#define INTe(t) write_int(f, #t, ssid->eap.t, 0)
#define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
#define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
STR(ssid);
INT(scan_ssid);
write_bssid(f, ssid);
write_psk(f, ssid);
write_proto(f, ssid);
write_key_mgmt(f, ssid);
INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
write_pairwise(f, ssid);
write_group(f, ssid);
write_auth_alg(f, ssid);
STR(bgscan);
STR(autoscan);
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STR(scan_freq);
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#ifdef IEEE8021X_EAPOL
write_eap(f, ssid);
STR(identity);
STR(anonymous_identity);
STR(password);
STR(ca_cert);
STR(ca_path);
STR(client_cert);
STR(private_key);
STR(private_key_passwd);
STR(dh_file);
STR(subject_match);
STR(altsubject_match);
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STR(domain_suffix_match);
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STR(ca_cert2);
STR(ca_path2);
STR(client_cert2);
STR(private_key2);
STR(private_key2_passwd);
STR(dh_file2);
STR(subject_match2);
STR(altsubject_match2);
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STR(domain_suffix_match2);
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STR(phase1);
STR(phase2);
STR(pcsc);
STR(pin);
STR(engine_id);
STR(key_id);
STR(cert_id);
STR(ca_cert_id);
STR(key2_id);
STR(pin2);
STR(engine2_id);
STR(cert2_id);
STR(ca_cert2_id);
INTe(engine);
INTe(engine2);
INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
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INTe(sim_num);
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#endif /* IEEE8021X_EAPOL */
for (i = 0; i < 4; i++)
write_wep_key(f, i, ssid);
INT(wep_tx_keyidx);
INT(priority);
#ifdef IEEE8021X_EAPOL
INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
STR(pac_file);
INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
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INTe(ocsp);
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#endif /* IEEE8021X_EAPOL */
INT(mode);
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INT(frequency);
write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
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INT(disabled);
INT(peerkey);
#ifdef CONFIG_IEEE80211W
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write_int(f, "ieee80211w", ssid->ieee80211w,
MGMT_FRAME_PROTECTION_DEFAULT);
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#endif /* CONFIG_IEEE80211W */
STR(id_str);
#ifdef CONFIG_P2P
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write_go_p2p_dev_addr(f, ssid);
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write_p2p_client_list(f, ssid);
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write_psk_list(f, ssid);
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#endif /* CONFIG_P2P */
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INT(dtim_period);
INT(beacon_int);
#ifdef CONFIG_MACSEC
INT(macsec_policy);
#endif /* CONFIG_MACSEC */
#ifdef CONFIG_HS20
INT(update_identifier);
#endif /* CONFIG_HS20 */
write_int(f, "mac_addr", ssid->mac_addr, -1);
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#undef STR
#undef INT
#undef INT_DEF
}
static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
{
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size_t i;
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if (cred->priority)
fprintf(f, "\tpriority=%d\n", cred->priority);
if (cred->pcsc)
fprintf(f, "\tpcsc=%d\n", cred->pcsc);
if (cred->realm)
fprintf(f, "\trealm=\"%s\"\n", cred->realm);
if (cred->username)
fprintf(f, "\tusername=\"%s\"\n", cred->username);
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if (cred->password && cred->ext_password)
fprintf(f, "\tpassword=ext:%s\n", cred->password);
else if (cred->password)
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fprintf(f, "\tpassword=\"%s\"\n", cred->password);
if (cred->ca_cert)
fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
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if (cred->client_cert)
fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
if (cred->private_key)
fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
if (cred->private_key_passwd)
fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
cred->private_key_passwd);
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if (cred->imsi)
fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
if (cred->milenage)
fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
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for (i = 0; i < cred->num_domain; i++)
fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
if (cred->domain_suffix_match)
fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
cred->domain_suffix_match);
if (cred->roaming_consortium_len) {
fprintf(f, "\troaming_consortium=");
for (i = 0; i < cred->roaming_consortium_len; i++)
fprintf(f, "%02x", cred->roaming_consortium[i]);
fprintf(f, "\n");
}
if (cred->eap_method) {
const char *name;
name = eap_get_name(cred->eap_method[0].vendor,
cred->eap_method[0].method);
if (name)
fprintf(f, "\teap=%s\n", name);
}
if (cred->phase1)
fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
if (cred->phase2)
fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
if (cred->excluded_ssid) {
size_t j;
for (i = 0; i < cred->num_excluded_ssid; i++) {
struct excluded_ssid *e = &cred->excluded_ssid[i];
fprintf(f, "\texcluded_ssid=");
for (j = 0; j < e->ssid_len; j++)
fprintf(f, "%02x", e->ssid[j]);
fprintf(f, "\n");
}
}
if (cred->roaming_partner) {
for (i = 0; i < cred->num_roaming_partner; i++) {
struct roaming_partner *p = &cred->roaming_partner[i];
fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
p->fqdn, p->exact_match, p->priority,
p->country);
}
}
if (cred->update_identifier)
fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
if (cred->provisioning_sp)
fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
if (cred->sp_priority)
fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
if (cred->min_dl_bandwidth_home)
fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
cred->min_dl_bandwidth_home);
if (cred->min_ul_bandwidth_home)
fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
cred->min_ul_bandwidth_home);
if (cred->min_dl_bandwidth_roaming)
fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
cred->min_dl_bandwidth_roaming);
if (cred->min_ul_bandwidth_roaming)
fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
cred->min_ul_bandwidth_roaming);
if (cred->max_bss_load)
fprintf(f, "\tmax_bss_load=%u\n",
cred->max_bss_load);
if (cred->ocsp)
fprintf(f, "\tocsp=%d\n", cred->ocsp);
if (cred->num_req_conn_capab) {
for (i = 0; i < cred->num_req_conn_capab; i++) {
int *ports;
fprintf(f, "\treq_conn_capab=%u",
cred->req_conn_capab_proto[i]);
ports = cred->req_conn_capab_port[i];
if (ports) {
int j;
for (j = 0; ports[j] != -1; j++) {
fprintf(f, "%s%d", j > 0 ? "," : ":",
ports[j]);
}
}
fprintf(f, "\n");
}
}
if (cred->required_roaming_consortium_len) {
fprintf(f, "\trequired_roaming_consortium=");
for (i = 0; i < cred->required_roaming_consortium_len; i++)
fprintf(f, "%02x",
cred->required_roaming_consortium[i]);
fprintf(f, "\n");
}
if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
fprintf(f, "\tsim_num=%d\n", cred->sim_num);
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}
#ifndef CONFIG_NO_CONFIG_BLOBS
static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
{
unsigned char *encoded;
encoded = base64_encode(blob->data, blob->len, NULL);
if (encoded == NULL)
return -1;
fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
os_free(encoded);
return 0;
}
#endif /* CONFIG_NO_CONFIG_BLOBS */
static void write_global_bin(FILE *f, const char *field,
const struct wpabuf *val)
{
size_t i;
const u8 *pos;
if (val == NULL)
return;
fprintf(f, "%s=", field);
pos = wpabuf_head(val);
for (i = 0; i < wpabuf_len(val); i++)
fprintf(f, "%02X", *pos++);
fprintf(f, "\n");
}
static void wpa_config_write_global(FILE *f, struct wpa_config *config)
{
#ifdef CONFIG_CTRL_IFACE
if (config->ctrl_interface)
fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
if (config->ctrl_interface_group)
fprintf(f, "ctrl_interface_group=%s\n",
config->ctrl_interface_group);
#endif /* CONFIG_CTRL_IFACE */
if (config->eapol_version != DEFAULT_EAPOL_VERSION)
fprintf(f, "eapol_version=%d\n", config->eapol_version);
if (config->ap_scan != DEFAULT_AP_SCAN)
fprintf(f, "ap_scan=%d\n", config->ap_scan);
if (config->disable_scan_offload)
fprintf(f, "disable_scan_offload=%d\n",
config->disable_scan_offload);
if (config->fast_reauth != DEFAULT_FAST_REAUTH)
fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
if (config->opensc_engine_path)
fprintf(f, "opensc_engine_path=%s\n",
config->opensc_engine_path);
if (config->pkcs11_engine_path)
fprintf(f, "pkcs11_engine_path=%s\n",
config->pkcs11_engine_path);
if (config->pkcs11_module_path)
fprintf(f, "pkcs11_module_path=%s\n",
config->pkcs11_module_path);
if (config->pcsc_reader)
fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
if (config->pcsc_pin)
fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
if (config->driver_param)
fprintf(f, "driver_param=%s\n", config->driver_param);
if (config->dot11RSNAConfigPMKLifetime)
fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
config->dot11RSNAConfigPMKLifetime);
if (config->dot11RSNAConfigPMKReauthThreshold)
fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
config->dot11RSNAConfigPMKReauthThreshold);
if (config->dot11RSNAConfigSATimeout)
fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
config->dot11RSNAConfigSATimeout);
if (config->update_config)
fprintf(f, "update_config=%d\n", config->update_config);
#ifdef CONFIG_WPS
if (!is_nil_uuid(config->uuid)) {
char buf[40];
uuid_bin2str(config->uuid, buf, sizeof(buf));
fprintf(f, "uuid=%s\n", buf);
}
if (config->device_name)
fprintf(f, "device_name=%s\n", config->device_name);
if (config->manufacturer)
fprintf(f, "manufacturer=%s\n", config->manufacturer);
if (config->model_name)
fprintf(f, "model_name=%s\n", config->model_name);
if (config->model_number)
fprintf(f, "model_number=%s\n", config->model_number);
if (config->serial_number)
fprintf(f, "serial_number=%s\n", config->serial_number);
{
char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
buf = wps_dev_type_bin2str(config->device_type,
_buf, sizeof(_buf));
if (os_strcmp(buf, "0-00000000-0") != 0)
fprintf(f, "device_type=%s\n", buf);
}
if (WPA_GET_BE32(config->os_version))
fprintf(f, "os_version=%08x\n",
WPA_GET_BE32(config->os_version));
if (config->config_methods)
fprintf(f, "config_methods=%s\n", config->config_methods);
if (config->wps_cred_processing)
fprintf(f, "wps_cred_processing=%d\n",
config->wps_cred_processing);
if (config->wps_vendor_ext_m1) {
int i, len = wpabuf_len(config->wps_vendor_ext_m1);
const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
if (len > 0) {
fprintf(f, "wps_vendor_ext_m1=");
for (i = 0; i < len; i++)
fprintf(f, "%02x", *p++);
fprintf(f, "\n");
}
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if (config->p2p_listen_reg_class)
fprintf(f, "p2p_listen_reg_class=%u\n",
config->p2p_listen_reg_class);
if (config->p2p_listen_channel)
fprintf(f, "p2p_listen_channel=%u\n",
config->p2p_listen_channel);
if (config->p2p_oper_reg_class)
fprintf(f, "p2p_oper_reg_class=%u\n",
config->p2p_oper_reg_class);
if (config->p2p_oper_channel)
fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
if (config->p2p_ssid_postfix)
fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
if (config->persistent_reconnect)
fprintf(f, "persistent_reconnect=%u\n",
config->persistent_reconnect);
if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
if (config->p2p_group_idle)
fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
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if (config->p2p_passphrase_len)
fprintf(f, "p2p_passphrase_len=%u\n",
config->p2p_passphrase_len);
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if (config->p2p_pref_chan) {
unsigned int i;
fprintf(f, "p2p_pref_chan=");
for (i = 0; i < config->num_p2p_pref_chan; i++) {
fprintf(f, "%s%u:%u", i > 0 ? "," : "",
config->p2p_pref_chan[i].op_class,
config->p2p_pref_chan[i].chan);
}
fprintf(f, "\n");
}
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if (config->p2p_no_go_freq.num) {
char *val = freq_range_list_str(&config->p2p_no_go_freq);
if (val) {
fprintf(f, "p2p_no_go_freq=%s\n", val);
os_free(val);
}
}
if (config->p2p_add_cli_chan)
fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
if (config->p2p_optimize_listen_chan !=
DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
fprintf(f, "p2p_optimize_listen_chan=%d\n",
config->p2p_optimize_listen_chan);
if (config->p2p_go_ht40)
fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
if (config->p2p_go_vht)
fprintf(f, "p2p_go_vht=%u\n", config->p2p_go_vht);
if (config->p2p_disabled)
fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled);
if (config->p2p_no_group_iface)
fprintf(f, "p2p_no_group_iface=%u\n",
config->p2p_no_group_iface);
if (config->p2p_ignore_shared_freq)
fprintf(f, "p2p_ignore_shared_freq=%u\n",
config->p2p_ignore_shared_freq);
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#endif /* CONFIG_P2P */
if (config->country[0] && config->country[1]) {
fprintf(f, "country=%c%c\n",
config->country[0], config->country[1]);
}
if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
fprintf(f, "bss_expiration_age=%u\n",
config->bss_expiration_age);
if (config->bss_expiration_scan_count !=
DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
fprintf(f, "bss_expiration_scan_count=%u\n",
config->bss_expiration_scan_count);
if (config->filter_ssids)
fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
if (config->disassoc_low_ack)
fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
#ifdef CONFIG_HS20
if (config->hs20)
fprintf(f, "hs20=1\n");
#endif /* CONFIG_HS20 */
#ifdef CONFIG_INTERWORKING
if (config->interworking)
fprintf(f, "interworking=%u\n", config->interworking);
if (!is_zero_ether_addr(config->hessid))
fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
fprintf(f, "access_network_type=%d\n",
config->access_network_type);
#endif /* CONFIG_INTERWORKING */
if (config->pbc_in_m1)
fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1);
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if (config->wps_nfc_pw_from_config) {
if (config->wps_nfc_dev_pw_id)
fprintf(f, "wps_nfc_dev_pw_id=%d\n",
config->wps_nfc_dev_pw_id);
write_global_bin(f, "wps_nfc_dh_pubkey",
config->wps_nfc_dh_pubkey);
write_global_bin(f, "wps_nfc_dh_privkey",
config->wps_nfc_dh_privkey);
write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
}
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if (config->ext_password_backend)
fprintf(f, "ext_password_backend=%s\n",
config->ext_password_backend);
if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
fprintf(f, "p2p_go_max_inactivity=%d\n",
config->p2p_go_max_inactivity);
if (config->auto_interworking)
fprintf(f, "auto_interworking=%d\n",
config->auto_interworking);
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if (config->okc)
fprintf(f, "okc=%d\n", config->okc);
if (config->pmf)
fprintf(f, "pmf=%d\n", config->pmf);
if (config->dtim_period)
fprintf(f, "dtim_period=%d\n", config->dtim_period);
if (config->beacon_int)
fprintf(f, "beacon_int=%d\n", config->beacon_int);
if (config->sae_groups) {
int i;
fprintf(f, "sae_groups=");
for (i = 0; config->sae_groups[i] >= 0; i++) {
fprintf(f, "%s%d", i > 0 ? " " : "",
config->sae_groups[i]);
}
fprintf(f, "\n");
}
if (config->ap_vendor_elements) {
int i, len = wpabuf_len(config->ap_vendor_elements);
const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
if (len > 0) {
fprintf(f, "ap_vendor_elements=");
for (i = 0; i < len; i++)
fprintf(f, "%02x", *p++);
fprintf(f, "\n");
}
}
if (config->ignore_old_scan_res)
fprintf(f, "ignore_old_scan_res=%d\n",
config->ignore_old_scan_res);
if (config->freq_list && config->freq_list[0]) {
int i;
fprintf(f, "freq_list=");
for (i = 0; config->freq_list[i]; i++) {
fprintf(f, "%s%u", i > 0 ? " " : "",
config->freq_list[i]);
}
fprintf(f, "\n");
}
if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
if (config->sched_scan_interval)
fprintf(f, "sched_scan_interval=%u\n",
config->sched_scan_interval);
if (config->external_sim)
fprintf(f, "external_sim=%d\n", config->external_sim);
if (config->tdls_external_control)
fprintf(f, "tdls_external_control=%d\n",
config->tdls_external_control);
if (config->wowlan_triggers)
fprintf(f, "wowlan_triggers=%s\n",
config->wowlan_triggers);
if (config->bgscan)
fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
fprintf(f, "p2p_search_delay=%u\n",
config->p2p_search_delay);
if (config->mac_addr)
fprintf(f, "mac_addr=%d\n", config->mac_addr);
if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
fprintf(f, "rand_addr_lifetime=%u\n",
config->rand_addr_lifetime);
if (config->preassoc_mac_addr)
fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
fprintf(f, "key_mgmt_offload=%u\n", config->key_mgmt_offload);
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}
#endif /* CONFIG_NO_CONFIG_WRITE */
int wpa_config_write(const char *name, struct wpa_config *config)
{
#ifndef CONFIG_NO_CONFIG_WRITE
FILE *f;
struct wpa_ssid *ssid;
struct wpa_cred *cred;
#ifndef CONFIG_NO_CONFIG_BLOBS
struct wpa_config_blob *blob;
#endif /* CONFIG_NO_CONFIG_BLOBS */
int ret = 0;
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int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
char *tmp_name = os_malloc(tmp_len);
if (tmp_name == NULL)
tmp_name = (char *)name;
else
os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
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wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", tmp_name);
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f = fopen(tmp_name, "w");
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if (f == NULL) {
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wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", tmp_name);
if (tmp_name != name)
os_free(tmp_name);
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return -1;
}
wpa_config_write_global(f, config);
for (cred = config->cred; cred; cred = cred->next) {
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if (cred->temporary)
continue;
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fprintf(f, "\ncred={\n");
wpa_config_write_cred(f, cred);
fprintf(f, "}\n");
}
for (ssid = config->ssid; ssid; ssid = ssid->next) {
if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
continue; /* do not save temporary networks */
if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
!ssid->passphrase)
continue; /* do not save invalid network */
fprintf(f, "\nnetwork={\n");
wpa_config_write_network(f, ssid);
fprintf(f, "}\n");
}
#ifndef CONFIG_NO_CONFIG_BLOBS
for (blob = config->blobs; blob; blob = blob->next) {
ret = wpa_config_write_blob(f, blob);
if (ret)
break;
}
#endif /* CONFIG_NO_CONFIG_BLOBS */
fclose(f);
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if (tmp_name != name) {
int chmod_ret = 0;
#ifdef ANDROID
chmod_ret = chmod(tmp_name, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
#endif
if (chmod_ret != 0 || rename(tmp_name, name) != 0)
ret = -1;
os_free(tmp_name);
}
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wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
name, ret ? "un" : "");
return ret;
#else /* CONFIG_NO_CONFIG_WRITE */
return -1;
#endif /* CONFIG_NO_CONFIG_WRITE */
}