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/*
* WPA Supplicant / SSL/TLS interface functions for Microsoft Schannel
* Copyright (c) 2005, 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.
*/
/*
* FIX: Go through all SSPI functions and verify what needs to be freed
* FIX: session resumption
* TODO: add support for server cert chain validation
* TODO: add support for CA cert validation
* TODO: add support for EAP-TLS (client cert/key conf)
*/
#include "includes.h"
#include <windows.h>
#include <wincrypt.h>
#include <schannel.h>
#define SECURITY_WIN32
#include <security.h>
#include <sspi.h>
#include "common.h"
#include "tls.h"
struct tls_global {
HMODULE hsecurity;
PSecurityFunctionTable sspi;
HCERTSTORE my_cert_store;
};
struct tls_connection {
int established, start;
int failed, read_alerts, write_alerts;
SCHANNEL_CRED schannel_cred;
CredHandle creds;
CtxtHandle context;
u8 eap_tls_prf[128];
int eap_tls_prf_set;
};
static int schannel_load_lib(struct tls_global *global)
{
INIT_SECURITY_INTERFACE pInitSecurityInterface;
global->hsecurity = LoadLibrary(TEXT("Secur32.dll"));
if (global->hsecurity == NULL) {
wpa_printf(MSG_ERROR, "%s: Could not load Secur32.dll - 0x%x",
__func__, (unsigned int) GetLastError());
return -1;
}
pInitSecurityInterface = (INIT_SECURITY_INTERFACE) GetProcAddress(
global->hsecurity, "InitSecurityInterfaceA");
if (pInitSecurityInterface == NULL) {
wpa_printf(MSG_ERROR, "%s: Could not find "
"InitSecurityInterfaceA from Secur32.dll",
__func__);
FreeLibrary(global->hsecurity);
global->hsecurity = NULL;
return -1;
}
global->sspi = pInitSecurityInterface();
if (global->sspi == NULL) {
wpa_printf(MSG_ERROR, "%s: Could not read security "
"interface - 0x%x",
__func__, (unsigned int) GetLastError());
FreeLibrary(global->hsecurity);
global->hsecurity = NULL;
return -1;
}
return 0;
}
void * tls_init(const struct tls_config *conf)
{
struct tls_global *global;
global = os_zalloc(sizeof(*global));
if (global == NULL)
return NULL;
if (schannel_load_lib(global)) {
os_free(global);
return NULL;
}
return global;
}
void tls_deinit(void *ssl_ctx)
{
struct tls_global *global = ssl_ctx;
if (global->my_cert_store)
CertCloseStore(global->my_cert_store, 0);
FreeLibrary(global->hsecurity);
os_free(global);
}
int tls_get_errors(void *ssl_ctx)
{
return 0;
}
struct tls_connection * tls_connection_init(void *ssl_ctx)
{
struct tls_connection *conn;
conn = os_zalloc(sizeof(*conn));
if (conn == NULL)
return NULL;
conn->start = 1;
return conn;
}
void tls_connection_deinit(void *ssl_ctx, struct tls_connection *conn)
{
if (conn == NULL)
return;
os_free(conn);
}
int tls_connection_established(void *ssl_ctx, struct tls_connection *conn)
{
return conn ? conn->established : 0;
}
int tls_connection_shutdown(void *ssl_ctx, struct tls_connection *conn)
{
struct tls_global *global = ssl_ctx;
if (conn == NULL)
return -1;
conn->eap_tls_prf_set = 0;
conn->established = conn->failed = 0;
conn->read_alerts = conn->write_alerts = 0;
global->sspi->DeleteSecurityContext(&conn->context);
/* FIX: what else needs to be reseted? */
return 0;
}
int tls_global_set_params(void *tls_ctx,
const struct tls_connection_params *params)
{
return -1;
}
int tls_global_set_verify(void *ssl_ctx, int check_crl)
{
return -1;
}
int tls_connection_set_verify(void *ssl_ctx, struct tls_connection *conn,
int verify_peer)
{
return -1;
}
int tls_connection_get_keys(void *ssl_ctx, struct tls_connection *conn,
struct tls_keys *keys)
{
/* Schannel does not export master secret or client/server random. */
return -1;
}
int tls_connection_prf(void *tls_ctx, struct tls_connection *conn,
const char *label, int server_random_first,
u8 *out, size_t out_len)
{
/*
* Cannot get master_key from Schannel, but EapKeyBlock can be used to
* generate session keys for EAP-TLS and EAP-PEAPv0. EAP-PEAPv2 and
* EAP-TTLS cannot use this, though, since they are using different
* labels. The only option could be to implement TLSv1 completely here
* and just use Schannel or CryptoAPI for low-level crypto
* functionality..
*/
if (conn == NULL || !conn->eap_tls_prf_set || server_random_first ||
os_strcmp(label, "client EAP encryption") != 0 ||
out_len > sizeof(conn->eap_tls_prf))
return -1;
os_memcpy(out, conn->eap_tls_prf, out_len);
return 0;
}
static u8 * tls_conn_hs_clienthello(struct tls_global *global,
struct tls_connection *conn,
size_t *out_len)
{
DWORD sspi_flags, sspi_flags_out;
SecBufferDesc outbuf;
SecBuffer outbufs[1];
SECURITY_STATUS status;
TimeStamp ts_expiry;
sspi_flags = ISC_REQ_REPLAY_DETECT |
ISC_REQ_CONFIDENTIALITY |
ISC_RET_EXTENDED_ERROR |
ISC_REQ_ALLOCATE_MEMORY |
ISC_REQ_MANUAL_CRED_VALIDATION;
wpa_printf(MSG_DEBUG, "%s: Generating ClientHello", __func__);
outbufs[0].pvBuffer = NULL;
outbufs[0].BufferType = SECBUFFER_TOKEN;
outbufs[0].cbBuffer = 0;
outbuf.cBuffers = 1;
outbuf.pBuffers = outbufs;
outbuf.ulVersion = SECBUFFER_VERSION;
#ifdef UNICODE
status = global->sspi->InitializeSecurityContextW(
&conn->creds, NULL, NULL /* server name */, sspi_flags, 0,
SECURITY_NATIVE_DREP, NULL, 0, &conn->context,
&outbuf, &sspi_flags_out, &ts_expiry);
#else /* UNICODE */
status = global->sspi->InitializeSecurityContextA(
&conn->creds, NULL, NULL /* server name */, sspi_flags, 0,
SECURITY_NATIVE_DREP, NULL, 0, &conn->context,
&outbuf, &sspi_flags_out, &ts_expiry);
#endif /* UNICODE */
if (status != SEC_I_CONTINUE_NEEDED) {
wpa_printf(MSG_ERROR, "%s: InitializeSecurityContextA "
"failed - 0x%x",
__func__, (unsigned int) status);
return NULL;
}
if (outbufs[0].cbBuffer != 0 && outbufs[0].pvBuffer) {
u8 *buf;
wpa_hexdump(MSG_MSGDUMP, "SChannel - ClientHello",
outbufs[0].pvBuffer, outbufs[0].cbBuffer);
conn->start = 0;
*out_len = outbufs[0].cbBuffer;
buf = os_malloc(*out_len);
if (buf == NULL)
return NULL;
os_memcpy(buf, outbufs[0].pvBuffer, *out_len);
global->sspi->FreeContextBuffer(outbufs[0].pvBuffer);
return buf;
}
wpa_printf(MSG_ERROR, "SChannel: Failed to generate ClientHello");
return NULL;
}
#ifndef SECPKG_ATTR_EAP_KEY_BLOCK
#define SECPKG_ATTR_EAP_KEY_BLOCK 0x5b
typedef struct _SecPkgContext_EapKeyBlock {
BYTE rgbKeys[128];
BYTE rgbIVs[64];
} SecPkgContext_EapKeyBlock, *PSecPkgContext_EapKeyBlock;
#endif /* !SECPKG_ATTR_EAP_KEY_BLOCK */
static int tls_get_eap(struct tls_global *global, struct tls_connection *conn)
{
SECURITY_STATUS status;
SecPkgContext_EapKeyBlock kb;
/* Note: Windows NT and Windows Me/98/95 do not support getting
* EapKeyBlock */
status = global->sspi->QueryContextAttributes(
&conn->context, SECPKG_ATTR_EAP_KEY_BLOCK, &kb);
if (status != SEC_E_OK) {
wpa_printf(MSG_DEBUG, "%s: QueryContextAttributes("
"SECPKG_ATTR_EAP_KEY_BLOCK) failed (%d)",
__func__, (int) status);
return -1;
}
wpa_hexdump_key(MSG_MSGDUMP, "Schannel - EapKeyBlock - rgbKeys",
kb.rgbKeys, sizeof(kb.rgbKeys));
wpa_hexdump_key(MSG_MSGDUMP, "Schannel - EapKeyBlock - rgbIVs",
kb.rgbIVs, sizeof(kb.rgbIVs));
os_memcpy(conn->eap_tls_prf, kb.rgbKeys, sizeof(kb.rgbKeys));
conn->eap_tls_prf_set = 1;
return 0;
}
u8 * tls_connection_handshake(void *ssl_ctx, struct tls_connection *conn,
const u8 *in_data, size_t in_len,
size_t *out_len, u8 **appl_data,
size_t *appl_data_len)
{
struct tls_global *global = ssl_ctx;
DWORD sspi_flags, sspi_flags_out;
SecBufferDesc inbuf, outbuf;
SecBuffer inbufs[2], outbufs[1];
SECURITY_STATUS status;
TimeStamp ts_expiry;
u8 *out_buf = NULL;
if (appl_data)
*appl_data = NULL;
if (conn->start) {
return tls_conn_hs_clienthello(global, conn, out_len);
}
wpa_printf(MSG_DEBUG, "SChannel: %d bytes handshake data to process",
in_len);
sspi_flags = ISC_REQ_REPLAY_DETECT |
ISC_REQ_CONFIDENTIALITY |
ISC_RET_EXTENDED_ERROR |
ISC_REQ_ALLOCATE_MEMORY |
ISC_REQ_MANUAL_CRED_VALIDATION;
/* Input buffer for Schannel */
inbufs[0].pvBuffer = (u8 *) in_data;
inbufs[0].cbBuffer = in_len;
inbufs[0].BufferType = SECBUFFER_TOKEN;
/* Place for leftover data from Schannel */
inbufs[1].pvBuffer = NULL;
inbufs[1].cbBuffer = 0;
inbufs[1].BufferType = SECBUFFER_EMPTY;
inbuf.cBuffers = 2;
inbuf.pBuffers = inbufs;
inbuf.ulVersion = SECBUFFER_VERSION;
/* Output buffer for Schannel */
outbufs[0].pvBuffer = NULL;
outbufs[0].cbBuffer = 0;
outbufs[0].BufferType = SECBUFFER_TOKEN;
outbuf.cBuffers = 1;
outbuf.pBuffers = outbufs;
outbuf.ulVersion = SECBUFFER_VERSION;
#ifdef UNICODE
status = global->sspi->InitializeSecurityContextW(
&conn->creds, &conn->context, NULL, sspi_flags, 0,
SECURITY_NATIVE_DREP, &inbuf, 0, NULL,
&outbuf, &sspi_flags_out, &ts_expiry);
#else /* UNICODE */
status = global->sspi->InitializeSecurityContextA(
&conn->creds, &conn->context, NULL, sspi_flags, 0,
SECURITY_NATIVE_DREP, &inbuf, 0, NULL,
&outbuf, &sspi_flags_out, &ts_expiry);
#endif /* UNICODE */
wpa_printf(MSG_MSGDUMP, "Schannel: InitializeSecurityContext -> "
"status=%d inlen[0]=%d intype[0]=%d inlen[1]=%d "
"intype[1]=%d outlen[0]=%d",
(int) status, (int) inbufs[0].cbBuffer,
(int) inbufs[0].BufferType, (int) inbufs[1].cbBuffer,
(int) inbufs[1].BufferType,
(int) outbufs[0].cbBuffer);
if (status == SEC_E_OK || status == SEC_I_CONTINUE_NEEDED ||
(FAILED(status) && (sspi_flags_out & ISC_RET_EXTENDED_ERROR))) {
if (outbufs[0].cbBuffer != 0 && outbufs[0].pvBuffer) {
wpa_hexdump(MSG_MSGDUMP, "SChannel - output",
outbufs[0].pvBuffer, outbufs[0].cbBuffer);
*out_len = outbufs[0].cbBuffer;
out_buf = os_malloc(*out_len);
if (out_buf)
os_memcpy(out_buf, outbufs[0].pvBuffer,
*out_len);
global->sspi->FreeContextBuffer(outbufs[0].pvBuffer);
outbufs[0].pvBuffer = NULL;
if (out_buf == NULL)
return NULL;
}
}
switch (status) {
case SEC_E_INCOMPLETE_MESSAGE:
wpa_printf(MSG_DEBUG, "Schannel: SEC_E_INCOMPLETE_MESSAGE");
break;
case SEC_I_CONTINUE_NEEDED:
wpa_printf(MSG_DEBUG, "Schannel: SEC_I_CONTINUE_NEEDED");
break;
case SEC_E_OK:
/* TODO: verify server certificate chain */
wpa_printf(MSG_DEBUG, "Schannel: SEC_E_OK - Handshake "
"completed successfully");
conn->established = 1;
tls_get_eap(global, conn);
/* Need to return something to get final TLS ACK. */
if (out_buf == NULL)
out_buf = os_malloc(1);
if (inbufs[1].BufferType == SECBUFFER_EXTRA) {
wpa_hexdump(MSG_MSGDUMP, "SChannel - Encrypted "
"application data",
inbufs[1].pvBuffer, inbufs[1].cbBuffer);
if (appl_data) {
*appl_data_len = outbufs[1].cbBuffer;
appl_data = os_malloc(*appl_data_len);
if (appl_data)
os_memcpy(appl_data,
outbufs[1].pvBuffer,
*appl_data_len);
}
global->sspi->FreeContextBuffer(inbufs[1].pvBuffer);
inbufs[1].pvBuffer = NULL;
}
break;
case SEC_I_INCOMPLETE_CREDENTIALS:
wpa_printf(MSG_DEBUG,
"Schannel: SEC_I_INCOMPLETE_CREDENTIALS");
break;
case SEC_E_WRONG_PRINCIPAL:
wpa_printf(MSG_DEBUG, "Schannel: SEC_E_WRONG_PRINCIPAL");
break;
case SEC_E_INTERNAL_ERROR:
wpa_printf(MSG_DEBUG, "Schannel: SEC_E_INTERNAL_ERROR");
break;
}
if (FAILED(status)) {
wpa_printf(MSG_DEBUG, "Schannel: Handshake failed "
"(out_buf=%p)", out_buf);
conn->failed++;
global->sspi->DeleteSecurityContext(&conn->context);
return out_buf;
}
if (inbufs[1].BufferType == SECBUFFER_EXTRA) {
/* TODO: Can this happen? What to do with this data? */
wpa_hexdump(MSG_MSGDUMP, "SChannel - Leftover data",
inbufs[1].pvBuffer, inbufs[1].cbBuffer);
global->sspi->FreeContextBuffer(inbufs[1].pvBuffer);
inbufs[1].pvBuffer = NULL;
}
return out_buf;
}
u8 * tls_connection_server_handshake(void *ssl_ctx,
struct tls_connection *conn,
const u8 *in_data, size_t in_len,
size_t *out_len)
{
return NULL;
}
int tls_connection_encrypt(void *ssl_ctx, struct tls_connection *conn,
const u8 *in_data, size_t in_len,
u8 *out_data, size_t out_len)
{
struct tls_global *global = ssl_ctx;
SECURITY_STATUS status;
SecBufferDesc buf;
SecBuffer bufs[4];
SecPkgContext_StreamSizes sizes;
int i;
size_t total_len;
status = global->sspi->QueryContextAttributes(&conn->context,
SECPKG_ATTR_STREAM_SIZES,
&sizes);
if (status != SEC_E_OK) {
wpa_printf(MSG_DEBUG, "%s: QueryContextAttributes failed",
__func__);
return -1;
}
wpa_printf(MSG_DEBUG, "%s: Stream sizes: header=%u trailer=%u",
__func__,
(unsigned int) sizes.cbHeader,
(unsigned int) sizes.cbTrailer);
total_len = sizes.cbHeader + in_len + sizes.cbTrailer;
if (out_len < total_len) {
wpa_printf(MSG_DEBUG, "%s: too short out_data (out_len=%lu "
"in_len=%lu total_len=%lu)", __func__,
(unsigned long) out_len, (unsigned long) in_len,
(unsigned long) total_len);
return -1;
}
os_memset(&bufs, 0, sizeof(bufs));
bufs[0].pvBuffer = out_data;
bufs[0].cbBuffer = sizes.cbHeader;
bufs[0].BufferType = SECBUFFER_STREAM_HEADER;
os_memcpy(out_data + sizes.cbHeader, in_data, in_len);
bufs[1].pvBuffer = out_data + sizes.cbHeader;
bufs[1].cbBuffer = in_len;
bufs[1].BufferType = SECBUFFER_DATA;
bufs[2].pvBuffer = out_data + sizes.cbHeader + in_len;
bufs[2].cbBuffer = sizes.cbTrailer;
bufs[2].BufferType = SECBUFFER_STREAM_TRAILER;
buf.ulVersion = SECBUFFER_VERSION;
buf.cBuffers = 3;
buf.pBuffers = bufs;
status = global->sspi->EncryptMessage(&conn->context, 0, &buf, 0);
wpa_printf(MSG_MSGDUMP, "Schannel: EncryptMessage -> "
"status=%d len[0]=%d type[0]=%d len[1]=%d type[1]=%d "
"len[2]=%d type[2]=%d",
(int) status,
(int) bufs[0].cbBuffer, (int) bufs[0].BufferType,
(int) bufs[1].cbBuffer, (int) bufs[1].BufferType,
(int) bufs[2].cbBuffer, (int) bufs[2].BufferType);
wpa_printf(MSG_MSGDUMP, "Schannel: EncryptMessage pointers: "
"out_data=%p bufs %p %p %p",
out_data, bufs[0].pvBuffer, bufs[1].pvBuffer,
bufs[2].pvBuffer);
for (i = 0; i < 3; i++) {
if (bufs[i].pvBuffer && bufs[i].BufferType != SECBUFFER_EMPTY)
{
wpa_hexdump(MSG_MSGDUMP, "SChannel: bufs",
bufs[i].pvBuffer, bufs[i].cbBuffer);
}
}
if (status == SEC_E_OK) {
wpa_printf(MSG_DEBUG, "%s: SEC_E_OK", __func__);
wpa_hexdump_key(MSG_MSGDUMP, "Schannel: Encrypted data from "
"EncryptMessage", out_data, total_len);
return total_len;
}
wpa_printf(MSG_DEBUG, "%s: Failed - status=%d",
__func__, (int) status);
return -1;
}
int tls_connection_decrypt(void *ssl_ctx, struct tls_connection *conn,
const u8 *in_data, size_t in_len,
u8 *out_data, size_t out_len)
{
struct tls_global *global = ssl_ctx;
SECURITY_STATUS status;
SecBufferDesc buf;
SecBuffer bufs[4];
int i;
if (out_len < in_len) {
wpa_printf(MSG_DEBUG, "%s: out_len=%lu < in_len=%lu", __func__,
(unsigned long) out_len, (unsigned long) in_len);
return -1;
}
wpa_hexdump(MSG_MSGDUMP, "Schannel: Encrypted data to DecryptMessage",
in_data, in_len);
os_memset(&bufs, 0, sizeof(bufs));
os_memcpy(out_data, in_data, in_len);
bufs[0].pvBuffer = out_data;
bufs[0].cbBuffer = in_len;
bufs[0].BufferType = SECBUFFER_DATA;
bufs[1].BufferType = SECBUFFER_EMPTY;
bufs[2].BufferType = SECBUFFER_EMPTY;
bufs[3].BufferType = SECBUFFER_EMPTY;
buf.ulVersion = SECBUFFER_VERSION;
buf.cBuffers = 4;
buf.pBuffers = bufs;
status = global->sspi->DecryptMessage(&conn->context, &buf, 0,
NULL);
wpa_printf(MSG_MSGDUMP, "Schannel: DecryptMessage -> "
"status=%d len[0]=%d type[0]=%d len[1]=%d type[1]=%d "
"len[2]=%d type[2]=%d len[3]=%d type[3]=%d",
(int) status,
(int) bufs[0].cbBuffer, (int) bufs[0].BufferType,
(int) bufs[1].cbBuffer, (int) bufs[1].BufferType,
(int) bufs[2].cbBuffer, (int) bufs[2].BufferType,
(int) bufs[3].cbBuffer, (int) bufs[3].BufferType);
wpa_printf(MSG_MSGDUMP, "Schannel: DecryptMessage pointers: "
"out_data=%p bufs %p %p %p %p",
out_data, bufs[0].pvBuffer, bufs[1].pvBuffer,
bufs[2].pvBuffer, bufs[3].pvBuffer);
switch (status) {
case SEC_E_INCOMPLETE_MESSAGE:
wpa_printf(MSG_DEBUG, "%s: SEC_E_INCOMPLETE_MESSAGE",
__func__);
break;
case SEC_E_OK:
wpa_printf(MSG_DEBUG, "%s: SEC_E_OK", __func__);
for (i = 0; i < 4; i++) {
if (bufs[i].BufferType == SECBUFFER_DATA)
break;
}
if (i == 4) {
wpa_printf(MSG_DEBUG, "%s: No output data from "
"DecryptMessage", __func__);
return -1;
}
wpa_hexdump_key(MSG_MSGDUMP, "Schannel: Decrypted data from "
"DecryptMessage",
bufs[i].pvBuffer, bufs[i].cbBuffer);
if (bufs[i].cbBuffer > out_len) {
wpa_printf(MSG_DEBUG, "%s: Too long output data",
__func__);
return -1;
}
os_memmove(out_data, bufs[i].pvBuffer, bufs[i].cbBuffer);
return bufs[i].cbBuffer;
}
wpa_printf(MSG_DEBUG, "%s: Failed - status=%d",
__func__, (int) status);
return -1;
}
int tls_connection_resumed(void *ssl_ctx, struct tls_connection *conn)
{
return 0;
}
int tls_connection_set_master_key(void *ssl_ctx, struct tls_connection *conn,
const u8 *key, size_t key_len)
{
return -1;
}
int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn,
u8 *ciphers)
{
return -1;
}
int tls_get_cipher(void *ssl_ctx, struct tls_connection *conn,
char *buf, size_t buflen)
{
return -1;
}
int tls_connection_enable_workaround(void *ssl_ctx,
struct tls_connection *conn)
{
return 0;
}
int tls_connection_client_hello_ext(void *ssl_ctx, struct tls_connection *conn,
int ext_type, const u8 *data,
size_t data_len)
{
return -1;
}
int tls_connection_get_failed(void *ssl_ctx, struct tls_connection *conn)
{
if (conn == NULL)
return -1;
return conn->failed;
}
int tls_connection_get_read_alerts(void *ssl_ctx, struct tls_connection *conn)
{
if (conn == NULL)
return -1;
return conn->read_alerts;
}
int tls_connection_get_write_alerts(void *ssl_ctx, struct tls_connection *conn)
{
if (conn == NULL)
return -1;
return conn->write_alerts;
}
int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn,
const struct tls_connection_params *params)
{
struct tls_global *global = tls_ctx;
ALG_ID algs[1];
SECURITY_STATUS status;
TimeStamp ts_expiry;
if (conn == NULL)
return -1;
if (global->my_cert_store == NULL &&
(global->my_cert_store = CertOpenSystemStore(0, TEXT("MY"))) ==
NULL) {
wpa_printf(MSG_ERROR, "%s: CertOpenSystemStore failed - 0x%x",
__func__, (unsigned int) GetLastError());
return -1;
}
os_memset(&conn->schannel_cred, 0, sizeof(conn->schannel_cred));
conn->schannel_cred.dwVersion = SCHANNEL_CRED_VERSION;
conn->schannel_cred.grbitEnabledProtocols = SP_PROT_TLS1;
algs[0] = CALG_RSA_KEYX;
conn->schannel_cred.cSupportedAlgs = 1;
conn->schannel_cred.palgSupportedAlgs = algs;
conn->schannel_cred.dwFlags |= SCH_CRED_NO_DEFAULT_CREDS;
#ifdef UNICODE
status = global->sspi->AcquireCredentialsHandleW(
NULL, UNISP_NAME_W, SECPKG_CRED_OUTBOUND, NULL,
&conn->schannel_cred, NULL, NULL, &conn->creds, &ts_expiry);
#else /* UNICODE */
status = global->sspi->AcquireCredentialsHandleA(
NULL, UNISP_NAME_A, SECPKG_CRED_OUTBOUND, NULL,
&conn->schannel_cred, NULL, NULL, &conn->creds, &ts_expiry);
#endif /* UNICODE */
if (status != SEC_E_OK) {
wpa_printf(MSG_DEBUG, "%s: AcquireCredentialsHandleA failed - "
"0x%x", __func__, (unsigned int) status);
return -1;
}
return 0;
}
unsigned int tls_capabilities(void *tls_ctx)
{
return 0;
}
int tls_connection_set_ia(void *tls_ctx, struct tls_connection *conn,
int tls_ia)
{
return -1;
}
int tls_connection_ia_send_phase_finished(void *tls_ctx,
struct tls_connection *conn,
int final,
u8 *out_data, size_t out_len)
{
return -1;
}
int tls_connection_ia_final_phase_finished(void *tls_ctx,
struct tls_connection *conn)
{
return -1;
}
int tls_connection_ia_permute_inner_secret(void *tls_ctx,
struct tls_connection *conn,
const u8 *key, size_t key_len)
{
return -1;
}
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