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/*
* EAP peer state machines (RFC 4137)
* Copyright (c) 2004-2012, 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 the Peer State Machine as defined in RFC 4137. The used
* states and state transitions match mostly with the RFC. However, there are
* couple of additional transitions for working around small issues noticed
* during testing. These exceptions are explained in comments within the
* functions in this file. The method functions, m.func(), are similar to the
* ones used in RFC 4137, but some small changes have used here to optimize
* operations and to add functionality needed for fast re-authentication
* (session resumption).
*/
#include <string.h>
#include "esp_err.h"
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/wpa_debug.h"
#include "common/eapol_common.h"
#include "common/ieee802_11_defs.h"
#include "utils/state_machine.h"
#include "rsn_supp/wpa.h"
#include "crypto/crypto.h"
#include "crypto/sha256.h"
#include "utils/ext_password.h"
#include "crypto/tls.h"
#include "eap_peer/eap_i.h"
#include "eap_peer/eap_config.h"
#include "eap_peer/eap.h"
#include "eap_peer/eap_tls.h"
#include "esp_wifi_driver.h"
#ifdef EAP_PEER_METHOD
#include "eap_peer/eap_methods.h"
#endif
#include "supplicant_opt.h"
u8 *g_wpa_anonymous_identity;
int g_wpa_anonymous_identity_len;
u8 *g_wpa_username;
int g_wpa_username_len;
const u8 *g_wpa_client_cert;
int g_wpa_client_cert_len;
const u8 *g_wpa_private_key;
int g_wpa_private_key_len;
const u8 *g_wpa_private_key_passwd;
int g_wpa_private_key_passwd_len;
const u8 *g_wpa_ca_cert;
int g_wpa_ca_cert_len;
u8 *g_wpa_password;
int g_wpa_password_len;
u8 *g_wpa_new_password;
int g_wpa_new_password_len;
char *g_wpa_ttls_phase2_type;
char *g_wpa_phase1_options;
u8 *g_wpa_pac_file;
int g_wpa_pac_file_len;
bool g_wpa_suiteb_certification;
#ifdef CONFIG_MBEDTLS_CERTIFICATE_BUNDLE
bool g_wpa_default_cert_bundle;
int (*esp_crt_bundle_attach_fn)(void *conf);
#endif
void eap_peer_config_deinit(struct eap_sm *sm);
void eap_peer_blob_deinit(struct eap_sm *sm);
void eap_deinit_prev_method(struct eap_sm *sm, const char *txt);
static void eap_sm_request(struct eap_sm *sm, enum wpa_ctrl_req_type field,
const char *msg, size_t msglen);
#ifdef EAP_PEER_METHOD
static struct eap_method *eap_methods = NULL;
static struct eap_method_type *config_methods;
const struct eap_method * eap_peer_get_eap_method(int vendor, EapType method)
{
struct eap_method *m;
for (m = eap_methods; m; m = m->next) {
if (m->vendor == vendor && m->method == method)
return m;
}
return NULL;
}
const struct eap_method * eap_peer_get_methods(size_t *count)
{
int c = 0;
struct eap_method *m;
for (m = eap_methods; m; m = m->next)
c++;
*count = c;
return eap_methods;
}
/**
* eap_config_allowed_method - Check whether EAP method is allowed
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @config: EAP configuration
* @vendor: Vendor-Id for expanded types or 0 = IETF for legacy types
* @method: EAP type
* Returns: 1 = allowed EAP method, 0 = not allowed
*/
static int eap_config_allowed_method(struct eap_sm *sm,
struct eap_peer_config *config,
int vendor, u32 method)
{
int i;
struct eap_method_type *m;
if (config == NULL || config->eap_methods == NULL)
return 1;
m = config->eap_methods;
for (i = 0; m[i].vendor != EAP_VENDOR_IETF ||
m[i].method != EAP_TYPE_NONE; i++) {
if (m[i].vendor == vendor && m[i].method == method)
return 1;
}
return 0;
}
EapType eap_peer_get_type(const char *name, int *vendor)
{
struct eap_method *m;
for (m = eap_methods; m; m = m->next) {
if (os_strcmp(m->name, name) == 0) {
*vendor = m->vendor;
return m->method;
}
}
*vendor = EAP_VENDOR_IETF;
return EAP_TYPE_NONE;
}
/**
* eap_allowed_method - Check whether EAP method is allowed
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @vendor: Vendor-Id for expanded types or 0 = IETF for legacy types
* @method: EAP type
* Returns: 1 = allowed EAP method, 0 = not allowed
*/
int eap_allowed_method(struct eap_sm *sm, int vendor, u32 method)
{
return eap_config_allowed_method(sm, eap_get_config(sm), vendor,
method);
}
static int
eap_allowed_phase2_type(int vendor, int type)
{
if (vendor != EAP_VENDOR_IETF)
return 0;
return type != EAP_TYPE_PEAP && type != EAP_TYPE_TTLS &&
type != EAP_TYPE_FAST;
}
u32 eap_get_phase2_type(const char *name, int *vendor)
{
int v;
u8 type = eap_peer_get_type(name, &v);
if (eap_allowed_phase2_type(v, type)) {
*vendor = v;
return type;
}
*vendor = EAP_VENDOR_IETF;
return EAP_TYPE_NONE;
}
struct eap_method_type * eap_get_phase2_types(struct eap_peer_config *config,
size_t *count)
{
struct eap_method_type *buf;
u32 method;
int vendor;
size_t mcount;
const struct eap_method *methods, *m;
methods = eap_peer_get_methods(&mcount);
if (methods == NULL)
return NULL;
*count = 0;
buf = os_malloc(mcount * sizeof(struct eap_method_type));
if (buf == NULL)
return NULL;
for (m = methods; m; m = m->next) {
vendor = m->vendor;
method = m->method;
if (eap_allowed_phase2_type(vendor, method)) {
if (vendor == EAP_VENDOR_IETF &&
method == EAP_TYPE_TLS && config &&
config->private_key2 == NULL)
continue;
buf[*count].vendor = vendor;
buf[*count].method = method;
(*count)++;
}
}
return buf;
}
struct eap_method * eap_peer_method_alloc(int vendor, EapType method,
const char *name)
{
struct eap_method *eap;
eap = (struct eap_method *)os_zalloc(sizeof(*eap));
if (eap == NULL)
return NULL;
eap->vendor = vendor;
eap->method = method;
eap->name = name;
return eap;
}
void eap_peer_method_free(struct eap_method *method)
{
os_free(method);
}
int eap_peer_method_register(struct eap_method *method)
{
struct eap_method *m, *last = NULL;
if (method == NULL || method->name == NULL)
return -1;
for (m = eap_methods; m; m = m->next) {
if (m->vendor == method->vendor &&
m->method == method->method &&
os_strcmp(m->name, method->name))
return -2;
last = m;
}
if (last)
last->next = method;
else
eap_methods = method;
return 0;
}
void eap_peer_unregister_methods(void)
{
struct eap_method *m;
while (eap_methods) {
m = eap_methods;
eap_methods = eap_methods->next;
if (m->free)
m->free(m);
else
eap_peer_method_free(m);
}
}
bool eap_sm_allowMethod(struct eap_sm *sm, int vendor,
EapType method)
{
if (!eap_allowed_method(sm, vendor, method)) {
wpa_printf(MSG_DEBUG, "EAP: configuration does not allow: "
"vendor %u method %u", vendor, method);
return FALSE;
}
if (eap_peer_get_eap_method(vendor, method))
return TRUE;
wpa_printf(MSG_DEBUG, "EAP: not included in build: "
"vendor %u method %u", vendor, method);
return FALSE;
}
int eap_peer_register_methods(void)
{
int ret = 0;
#ifdef EAP_MD5
if (ret == 0)
ret = eap_peer_md5_register();
#endif
#ifdef EAP_TLS
if (ret == 0)
ret = eap_peer_tls_register();
#endif
#ifdef EAP_MSCHAPv2
if (ret == 0)
ret = eap_peer_mschapv2_register();
#endif
#ifdef EAP_FAST
if (ret == 0)
ret = eap_peer_fast_register();
#endif
#ifdef EAP_PEAP
if (ret == 0)
ret = eap_peer_peap_register();
#endif
#ifdef EAP_TTLS
if (ret == 0)
ret = eap_peer_ttls_register();
#endif
return ret;
}
static void eap_sm_free_key(struct eap_sm *sm)
{
if (sm->eapKeyData) {
bin_clear_free(sm->eapKeyData, sm->eapKeyDataLen);
sm->eapKeyData = NULL;
}
}
void eap_deinit_prev_method(struct eap_sm *sm, const char *txt)
{
if (sm->m == NULL || sm->eap_method_priv == NULL)
return;
sm->m->deinit(sm, sm->eap_method_priv);
sm->eap_method_priv = NULL;
sm->m = NULL;
}
static int eap_sm_set_scard_pin(struct eap_sm *sm,
struct eap_peer_config *conf)
{
return -1;
}
static int eap_sm_get_scard_identity(struct eap_sm *sm,
struct eap_peer_config *conf)
{
return -1;
}
/**
* eap_sm_buildIdentity - Build EAP-Identity/Response for the current network
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @id: EAP identifier for the packet
* @encrypted: Whether the packet is for encrypted tunnel (EAP phase 2)
* Returns: Pointer to the allocated EAP-Identity/Response packet or %NULL on
* failure
*
* This function allocates and builds an EAP-Identity/Response packet for the
* current network. The caller is responsible for freeing the returned data.
*/
struct wpabuf * eap_sm_buildIdentity(struct eap_sm *sm, int id, int encrypted)
{
struct eap_peer_config *config = eap_get_config(sm);
struct wpabuf *resp;
const u8 *identity;
size_t identity_len;
if (config == NULL) {
wpa_printf(MSG_ERROR, "EAP: buildIdentity: configuration "
"was not available");
return NULL;
}
if (sm->m && sm->m->get_identity &&
(identity = sm->m->get_identity(sm, sm->eap_method_priv,
&identity_len)) != NULL) {
wpa_hexdump_ascii(MSG_DEBUG, "EAP: using method re-auth "
"identity", identity, identity_len);
} else if (!encrypted && config->anonymous_identity) {
identity = config->anonymous_identity;
identity_len = config->anonymous_identity_len;
wpa_hexdump_ascii(MSG_DEBUG, "EAP: using anonymous identity",
identity, identity_len);
} else {
identity = config->identity;
identity_len = config->identity_len;
wpa_hexdump_ascii(MSG_DEBUG, "EAP: using real identity",
identity, identity_len);
}
if (identity == NULL) {
wpa_printf(MSG_ERROR, "EAP: buildIdentity: identity "
"configuration was not available");
if (config->pcsc) {
if (eap_sm_get_scard_identity(sm, config) < 0)
return NULL;
identity = config->identity;
identity_len = config->identity_len;
wpa_hexdump_ascii(MSG_DEBUG, "permanent identity from "
"IMSI", identity, identity_len);
} else {
eap_sm_request_identity(sm);
return NULL;
}
} else if (config->pcsc) {
if (eap_sm_set_scard_pin(sm, config) < 0)
return NULL;
}
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY, identity_len,
EAP_CODE_RESPONSE, id);
if (resp == NULL)
return NULL;
wpabuf_put_data(resp, identity, identity_len);
return resp;
}
struct wpabuf * eap_sm_build_identity_resp(struct eap_sm *sm, u8 id, int encrypted)
{
const u8 *identity;
size_t identity_len;
struct wpabuf *eap_buf = NULL;
struct eap_peer_config *config = eap_get_config(sm);
if (config == NULL) {
wpa_printf(MSG_ERROR, "EAP: Build Identity Resp-> configuration was not available");
return NULL;
}
if (sm->m && sm->m->get_identity) {
identity = sm->m->get_identity(sm,
sm->eap_method_priv,
&identity_len);
} else if (!encrypted && config->anonymous_identity) {
identity = config->anonymous_identity;
identity_len = config->anonymous_identity_len;
} else {
identity = config->identity;
identity_len = config->identity_len;
}
if (identity == NULL) {
wpa_printf(MSG_ERROR, "EAP: Build Identity Resp-> identity was not available");
return NULL;
}
eap_buf = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY,
identity_len, EAP_CODE_RESPONSE, id);
if (!eap_buf) {
return NULL;
}
wpabuf_put_data(eap_buf, identity, identity_len);
return eap_buf;
}
struct wpabuf * eap_sm_build_nak(struct eap_sm *sm, EapType type, u8 id)
{
size_t count = 0;
int found = 0;
struct wpabuf *resp;
const struct eap_method *methods, *m;
methods = eap_peer_get_methods(&count);
if (methods == NULL)
return NULL;
if (type == EAP_TYPE_EXPANDED) {
/*Build Expanded NAK*/
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_EXPANDED,
8 + 8 * (count + 1), EAP_CODE_RESPONSE, id);
if (resp == NULL)
return NULL;
wpabuf_put_be24(resp, EAP_VENDOR_IETF);
wpabuf_put_be32(resp, EAP_TYPE_NAK);
} else {
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_NAK,
sizeof(struct eap_hdr) + 1 + count + 1,
EAP_CODE_RESPONSE, id);
if (resp == NULL)
return NULL;
wpabuf_put(resp, 0);
}
for (m = methods; m; m = m->next) {
//do not propose insecure unencapsulated MSCHAPv2 as Phase 1 Method
if(m->vendor == EAP_VENDOR_IETF && m->method == EAP_TYPE_MSCHAPV2)
continue;
//do not propose EAP_TYPE_TLS if no client cert/key are configured
if(m->vendor == EAP_VENDOR_IETF && m->method == EAP_TYPE_TLS) {
struct eap_peer_config *config = eap_get_config(sm);
if (config == NULL || config->private_key == 0 || config->client_cert == 0)
continue;
}
if (type == EAP_TYPE_EXPANDED) {
wpabuf_put_u8(resp, EAP_TYPE_EXPANDED);
wpabuf_put_be24(resp, m->vendor);
wpabuf_put_be32(resp, m->method);
} else
wpabuf_put_u8(resp, m->method);
found++;
}
if (!found) {
if (type == EAP_TYPE_EXPANDED) {
wpabuf_put_u8(resp, EAP_TYPE_EXPANDED);
wpabuf_put_be24(resp, EAP_VENDOR_IETF);
wpabuf_put_be32(resp, EAP_TYPE_NONE);
} else
wpabuf_put_u8(resp, EAP_TYPE_NONE);
}
eap_update_len(resp);
return resp;
}
#endif
int eap_peer_config_init(
struct eap_sm *sm, const u8 *private_key_passwd,
int private_key_passwd_len)
{
if (!sm)
return -1;
sm->config.anonymous_identity = NULL;
sm->config.identity = NULL;
sm->config.password = NULL;
sm->config.new_password = NULL;
sm->config.private_key_passwd = private_key_passwd;
sm->config.client_cert = (u8 *)sm->blob[0].name;
sm->config.private_key = (u8 *)sm->blob[1].name;
sm->config.ca_cert = (u8 *)sm->blob[2].name;
sm->config.ca_path = NULL;
sm->config.fragment_size = 1400; /* fragment size */
sm->config.pac_file = (char *) "blob://";
/* anonymous identity */
if (g_wpa_anonymous_identity && g_wpa_anonymous_identity_len > 0) {
sm->config.anonymous_identity_len = g_wpa_anonymous_identity_len;
sm->config.anonymous_identity = (u8 *)os_zalloc(sm->config.anonymous_identity_len);
if (sm->config.anonymous_identity == NULL)
return -2;
os_memcpy(sm->config.anonymous_identity, g_wpa_anonymous_identity, g_wpa_anonymous_identity_len);
}
/* Configre identity */
if (g_wpa_username && g_wpa_username_len > 0) {
sm->config.identity_len = g_wpa_username_len;
sm->config.identity = (u8 *)os_zalloc(sm->config.identity_len);
if (sm->config.identity == NULL) {
return -2;
}
os_memcpy(sm->config.identity, g_wpa_username, g_wpa_username_len);
}
if (g_wpa_password && g_wpa_password_len) {
sm->config.password_len = g_wpa_password_len;
sm->config.password = (u8 *)os_zalloc(sm->config.password_len);
if (sm->config.password == NULL)
return -2;
os_memcpy(sm->config.password, g_wpa_password, sm->config.password_len);
}
if (g_wpa_new_password && g_wpa_new_password_len) {
sm->config.new_password_len = g_wpa_new_password_len;
sm->config.new_password = (u8 *)os_zalloc(sm->config.new_password_len);
if (sm->config.new_password == NULL)
return -2;
os_memcpy(sm->config.new_password, g_wpa_new_password,
sm->config.new_password_len);
}
if (g_wpa_ttls_phase2_type) {
sm->config.phase2 = g_wpa_ttls_phase2_type;
} else {
/* set default config phase2 mode as MSCHAPV2 */
sm->config.phase2 = "auth=MSCHAPV2";
}
if (g_wpa_suiteb_certification) {
sm->config.flags |= TLS_CONN_SUITEB;
}
#ifdef CONFIG_MBEDTLS_CERTIFICATE_BUNDLE
if (g_wpa_default_cert_bundle) {
sm->config.flags |= TLS_CONN_USE_DEFAULT_CERT_BUNDLE;
}
#endif
/* To be used only for EAP-FAST */
if (g_wpa_phase1_options) {
sm->config.phase1 = g_wpa_phase1_options;
}
/* Allow methods with correct configuration only */
size_t mcount;
int allowed_method_count = 0;
const struct eap_method *methods;
if (!config_methods) {
methods = eap_peer_get_methods(&mcount);
if (methods == NULL) {
wpa_printf(MSG_ERROR, "EAP: Set config init: EAP methods not registered.");
return -1;
}
// Allocate a buffer large enough to accomodate all the registered methods.
config_methods = os_malloc(mcount * sizeof(struct eap_method_type));
if (config_methods == NULL) {
wpa_printf(MSG_ERROR, "EAP: Set config init: Out of memory, set configured methods failed");
return -1;
}
if (g_wpa_username) {
//set EAP-PEAP
config_methods[allowed_method_count].vendor = EAP_VENDOR_IETF;
config_methods[allowed_method_count++].method = EAP_TYPE_PEAP;
//set EAP-TTLS
config_methods[allowed_method_count].vendor = EAP_VENDOR_IETF;
config_methods[allowed_method_count++].method = EAP_TYPE_TTLS;
}
if (g_wpa_private_key) {
//set EAP-TLS
config_methods[allowed_method_count].vendor = EAP_VENDOR_IETF;
config_methods[allowed_method_count++].method = EAP_TYPE_TLS;
}
#ifdef EAP_FAST
if (g_wpa_pac_file) {
//set EAP-FAST
config_methods[allowed_method_count].vendor = EAP_VENDOR_IETF;
config_methods[allowed_method_count++].method = EAP_TYPE_FAST;
}
#endif
// Terminate the allowed method list
config_methods[allowed_method_count].vendor = EAP_VENDOR_IETF;
config_methods[allowed_method_count++].method = EAP_TYPE_NONE;
// Set the allowed methods to config
sm->config.eap_methods = config_methods;
}
return 0;
}
void eap_peer_config_deinit(struct eap_sm *sm)
{
if (!sm)
return;
os_free(sm->config.anonymous_identity);
os_free(sm->config.identity);
os_free(sm->config.password);
os_free(sm->config.new_password);
os_free(sm->config.eap_methods);
os_bzero(&sm->config, sizeof(struct eap_peer_config));
config_methods = NULL;
}
int eap_peer_blob_init(struct eap_sm *sm)
{
int i, ret;
if (!sm)
return -1;
if (g_wpa_client_cert && g_wpa_client_cert_len) {
sm->blob[0].name = (char *)os_zalloc(BLOB_NAME_LEN+1);
if (sm->blob[0].name == NULL) {
ret = -2;
goto _out;
}
os_strlcpy(sm->blob[0].name, CLIENT_CERT_NAME, BLOB_NAME_LEN+1);
sm->blob[0].len = g_wpa_client_cert_len;
sm->blob[0].data = g_wpa_client_cert;
}
if (g_wpa_private_key && g_wpa_private_key_len) {
sm->blob[1].name = (char *)os_zalloc(BLOB_NAME_LEN+1);
if (sm->blob[1].name == NULL) {
ret = -2;
goto _out;
}
os_strlcpy(sm->blob[1].name, PRIVATE_KEY_NAME, BLOB_NAME_LEN+1);
sm->blob[1].len = g_wpa_private_key_len;
sm->blob[1].data = g_wpa_private_key;
}
if (g_wpa_ca_cert && g_wpa_ca_cert_len) {
sm->blob[2].name = (char *)os_zalloc(BLOB_NAME_LEN+1);
if (sm->blob[2].name == NULL) {
ret = -2;
goto _out;
}
os_strlcpy(sm->blob[2].name, CA_CERT_NAME, BLOB_NAME_LEN+1);
sm->blob[2].len = g_wpa_ca_cert_len;
sm->blob[2].data = g_wpa_ca_cert;
}
if (g_wpa_pac_file && g_wpa_pac_file_len) {
sm->blob[3].name = (char *)os_zalloc(sizeof(char) * 8);
if (sm->blob[3].name == NULL) {
ret = -2;
goto _out;
}
os_strlcpy(sm->blob[3].name, "blob://", 8);
sm->blob[3].len = g_wpa_pac_file_len;
sm->blob[3].data = g_wpa_pac_file;
}
return 0;
_out:
for (i = 0; i < BLOB_NUM; i++) {
if (sm->blob[i].name) {
os_free(sm->blob[i].name);
sm->blob[i].name = NULL;
}
}
os_bzero(&sm->blob[0], sizeof(struct wpa_config_blob)*BLOB_NUM);
return ret;
}
static void eap_sm_request(struct eap_sm *sm, enum wpa_ctrl_req_type field,
const char *msg, size_t msglen)
{
#if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
struct eap_peer_config *config;
if (sm == NULL)
return;
config = eap_get_config(sm);
if (config == NULL)
return;
switch (field) {
case WPA_CTRL_REQ_EAP_IDENTITY:
config->pending_req_identity++;
break;
case WPA_CTRL_REQ_EAP_PASSWORD:
config->pending_req_password++;
break;
case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
config->pending_req_new_password++;
break;
case WPA_CTRL_REQ_EAP_PIN:
config->pending_req_pin++;
break;
case WPA_CTRL_REQ_EAP_PASSPHRASE:
config->pending_req_passphrase++;
break;
case WPA_CTRL_REQ_EXT_CERT_CHECK:
break;
default:
return;
}
#endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
}
const char * eap_sm_get_method_name(struct eap_sm *sm)
{
if (sm->m == NULL)
return "UNKNOWN";
return sm->m->name;
}
/**
* eap_sm_request_identity - Request identity from user (ctrl_iface)
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
*
* EAP methods can call this function to request identity information for the
* current network. This is normally called when the identity is not included
* in the network configuration. The request will be sent to monitor programs
* through the control interface.
*/
void eap_sm_request_identity(struct eap_sm *sm)
{
eap_sm_request(sm, WPA_CTRL_REQ_EAP_IDENTITY, NULL, 0);
}
/**
* eap_sm_request_password - Request password from user (ctrl_iface)
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
*
* EAP methods can call this function to request password information for the
* current network. This is normally called when the password is not included
* in the network configuration. The request will be sent to monitor programs
* through the control interface.
*/
void eap_sm_request_password(struct eap_sm *sm)
{
eap_sm_request(sm, WPA_CTRL_REQ_EAP_PASSWORD, NULL, 0);
}
/**
* eap_sm_request_new_password - Request new password from user (ctrl_iface)
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
*
* EAP methods can call this function to request new password information for
* the current network. This is normally called when the EAP method indicates
* that the current password has expired and password change is required. The
* request will be sent to monitor programs through the control interface.
*/
void eap_sm_request_new_password(struct eap_sm *sm)
{
eap_sm_request(sm, WPA_CTRL_REQ_EAP_NEW_PASSWORD, NULL, 0);
}
void eap_peer_blob_deinit(struct eap_sm *sm)
{
int i;
for (i = 0; i < BLOB_NUM; i++) {
if (sm->blob[i].name) {
os_free(sm->blob[i].name);
sm->blob[i].name = NULL;
}
}
os_bzero(&sm->blob[0], sizeof(struct wpa_config_blob)*BLOB_NUM);
sm->config.client_cert = NULL;
sm->config.private_key = NULL;
sm->config.ca_cert = NULL;
sm->config.pac_file = NULL;
}
void eap_sm_abort(struct eap_sm *sm)
{
wpabuf_free(sm->lastRespData);
sm->lastRespData = NULL;
eap_sm_free_key(sm);
}
/**
* eap_get_config - Get current network configuration
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* Returns: Pointer to the current network configuration or %NULL if not found
*
* EAP peer methods should avoid using this function if they can use other
* access functions, like eap_get_config_identity() and
* eap_get_config_password(), that do not require direct access to
* struct eap_peer_config.
*/
struct eap_peer_config * eap_get_config(struct eap_sm *sm)
{
return &sm->config;
}
/**
* eap_get_config_identity - Get identity from the network configuration
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @len: Buffer for the length of the identity
* Returns: Pointer to the identity or %NULL if not found
*/
const u8 * eap_get_config_identity(struct eap_sm *sm, size_t *len)
{
struct eap_peer_config *config = eap_get_config(sm);
if (config == NULL)
return NULL;
*len = config->identity_len;
return config->identity;
}
/**
* eap_get_config_password - Get password from the network configuration
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @len: Buffer for the length of the password
* Returns: Pointer to the password or %NULL if not found
*/
const u8 * eap_get_config_password(struct eap_sm *sm, size_t *len)
{
struct eap_peer_config *config = eap_get_config(sm);
if (config == NULL)
return NULL;
*len = config->password_len;
return config->password;
}
/**
* eap_get_config_password2 - Get password from the network configuration
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @len: Buffer for the length of the password
* @hash: Buffer for returning whether the password is stored as a
* NtPasswordHash instead of plaintext password; can be %NULL if this
* information is not needed
* Returns: Pointer to the password or %NULL if not found
*/
const u8 * eap_get_config_password2(struct eap_sm *sm, size_t *len, int *hash)
{
struct eap_peer_config *config = eap_get_config(sm);
if (config == NULL)
return NULL;
*len = config->password_len;
if (hash)
*hash = !!(config->flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH);
return config->password;
}
/**
* eap_get_config_new_password - Get new password from network configuration
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @len: Buffer for the length of the new password
* Returns: Pointer to the new password or %NULL if not found
*/
const u8 * eap_get_config_new_password(struct eap_sm *sm, size_t *len)
{
struct eap_peer_config *config = eap_get_config(sm);
if (config == NULL)
return NULL;
*len = config->new_password_len;
return config->new_password;
}
static int eap_copy_buf(u8 **dst, size_t *dst_len,
const u8 *src, size_t src_len)
{
if (src) {
*dst = os_memdup(src, src_len);
if (*dst == NULL)
return -1;
*dst_len = src_len;
}
return 0;
}
/**
* eap_set_config_blob - Set or add a named configuration blob
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @blob: New value for the blob
*
* Adds a new configuration blob or replaces the current value of an existing
* blob.
*/
void eap_set_config_blob(struct eap_sm *sm, struct wpa_config_blob *blob)
{
if (!sm)
return;
if (eap_copy_buf((u8 **)&sm->blob[3].data, (size_t *)&sm->blob[3].len, blob->data, blob->len) < 0) {
wpa_printf(MSG_ERROR, "EAP: Set config blob: Unable to modify the configuration blob");
}
}
/**
* eap_get_config_blob - Get a named configuration blob
* @sm: Pointer to EAP state machine allocated with eap_peer_sm_init()
* @name: Name of the blob
* Returns: Pointer to blob data or %NULL if not found
*/
const struct wpa_config_blob * eap_get_config_blob(struct eap_sm *sm,
const char *name)
{
int i;
if (!sm)
return NULL;
for (i = 0; i < BLOB_NUM; i++) {
if (sm->blob[i].name == NULL)
continue;
if (os_strncmp(name, sm->blob[i].name, BLOB_NAME_LEN) == 0) {
return &sm->blob[i];
}
}
return NULL;
}
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