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Sweden-Number/dlls/kerberos/krb5_ap.c

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/*
* Copyright 2017 Dmitry Timoshkov
* Copyright 2017 George Popoff
* Copyright 2008 Robert Shearman for CodeWeavers
* Copyright 2017 Hans Leidekker for CodeWeavers
*
* Kerberos5 Authentication Package
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#ifdef HAVE_KRB5_KRB5_H
#include <krb5/krb5.h>
#endif
#ifdef SONAME_LIBGSSAPI_KRB5
# include <gssapi/gssapi.h>
# include <gssapi/gssapi_ext.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "rpc.h"
#include "sspi.h"
#include "ntsecapi.h"
#include "ntsecpkg.h"
#include "winternl.h"
#include "wine/heap.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "unixlib.h"
WINE_DEFAULT_DEBUG_CHANNEL(kerberos);
static HINSTANCE instance;
const struct krb5_funcs *krb5_funcs = NULL;
#define KERBEROS_MAX_BUF 12000
#define KERBEROS_CAPS \
( SECPKG_FLAG_INTEGRITY \
| SECPKG_FLAG_PRIVACY \
| SECPKG_FLAG_TOKEN_ONLY \
| SECPKG_FLAG_DATAGRAM \
| SECPKG_FLAG_CONNECTION \
| SECPKG_FLAG_MULTI_REQUIRED \
| SECPKG_FLAG_EXTENDED_ERROR \
| SECPKG_FLAG_IMPERSONATION \
| SECPKG_FLAG_ACCEPT_WIN32_NAME \
| SECPKG_FLAG_NEGOTIABLE \
| SECPKG_FLAG_GSS_COMPATIBLE \
| SECPKG_FLAG_LOGON \
| SECPKG_FLAG_MUTUAL_AUTH \
| SECPKG_FLAG_DELEGATION \
| SECPKG_FLAG_READONLY_WITH_CHECKSUM \
| SECPKG_FLAG_RESTRICTED_TOKENS \
| SECPKG_FLAG_APPCONTAINER_CHECKS)
static WCHAR kerberos_name_W[] = {'K','e','r','b','e','r','o','s',0};
static WCHAR kerberos_comment_W[] = {'M','i','c','r','o','s','o','f','t',' ','K','e','r','b','e','r','o','s',' ','V','1','.','0',0};
static const SecPkgInfoW infoW =
{
KERBEROS_CAPS,
1,
RPC_C_AUTHN_GSS_KERBEROS,
KERBEROS_MAX_BUF,
kerberos_name_W,
kerberos_comment_W
};
static ULONG kerberos_package_id;
static LSA_DISPATCH_TABLE lsa_dispatch;
#ifdef SONAME_LIBKRB5
static void *libkrb5_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p_##f
MAKE_FUNCPTR(krb5_cc_close);
MAKE_FUNCPTR(krb5_cc_default);
MAKE_FUNCPTR(krb5_cc_end_seq_get);
MAKE_FUNCPTR(krb5_cc_initialize);
MAKE_FUNCPTR(krb5_cc_next_cred);
MAKE_FUNCPTR(krb5_cc_start_seq_get);
MAKE_FUNCPTR(krb5_cc_store_cred);
MAKE_FUNCPTR(krb5_cccol_cursor_free);
MAKE_FUNCPTR(krb5_cccol_cursor_new);
MAKE_FUNCPTR(krb5_cccol_cursor_next);
MAKE_FUNCPTR(krb5_decode_ticket);
MAKE_FUNCPTR(krb5_free_context);
MAKE_FUNCPTR(krb5_free_cred_contents);
MAKE_FUNCPTR(krb5_free_principal);
MAKE_FUNCPTR(krb5_free_ticket);
MAKE_FUNCPTR(krb5_free_unparsed_name);
MAKE_FUNCPTR(krb5_get_init_creds_opt_alloc);
MAKE_FUNCPTR(krb5_get_init_creds_opt_free);
MAKE_FUNCPTR(krb5_get_init_creds_opt_set_out_ccache);
MAKE_FUNCPTR(krb5_get_init_creds_password);
MAKE_FUNCPTR(krb5_init_context);
MAKE_FUNCPTR(krb5_is_config_principal);
MAKE_FUNCPTR(krb5_parse_name_flags);
MAKE_FUNCPTR(krb5_unparse_name_flags);
#undef MAKE_FUNCPTR
static void load_krb5(void)
{
if (!(libkrb5_handle = dlopen(SONAME_LIBKRB5, RTLD_NOW)))
{
WARN("Failed to load %s, Kerberos support will be disabled\n", SONAME_LIBKRB5);
return;
}
#define LOAD_FUNCPTR(f) \
if (!(p_##f = dlsym(libkrb5_handle, #f))) \
{ \
ERR("Failed to load %s\n", #f); \
goto fail; \
}
LOAD_FUNCPTR(krb5_cc_close)
LOAD_FUNCPTR(krb5_cc_default)
LOAD_FUNCPTR(krb5_cc_end_seq_get)
LOAD_FUNCPTR(krb5_cc_initialize)
LOAD_FUNCPTR(krb5_cc_next_cred)
LOAD_FUNCPTR(krb5_cc_start_seq_get)
LOAD_FUNCPTR(krb5_cc_store_cred)
LOAD_FUNCPTR(krb5_cccol_cursor_free)
LOAD_FUNCPTR(krb5_cccol_cursor_new)
LOAD_FUNCPTR(krb5_cccol_cursor_next)
LOAD_FUNCPTR(krb5_decode_ticket)
LOAD_FUNCPTR(krb5_free_context)
LOAD_FUNCPTR(krb5_free_cred_contents)
LOAD_FUNCPTR(krb5_free_principal)
LOAD_FUNCPTR(krb5_free_ticket)
LOAD_FUNCPTR(krb5_free_unparsed_name)
LOAD_FUNCPTR(krb5_get_init_creds_opt_alloc)
LOAD_FUNCPTR(krb5_get_init_creds_opt_free)
LOAD_FUNCPTR(krb5_get_init_creds_opt_set_out_ccache)
LOAD_FUNCPTR(krb5_get_init_creds_password)
LOAD_FUNCPTR(krb5_init_context)
LOAD_FUNCPTR(krb5_is_config_principal)
LOAD_FUNCPTR(krb5_parse_name_flags)
LOAD_FUNCPTR(krb5_unparse_name_flags)
#undef LOAD_FUNCPTR
return;
fail:
dlclose(libkrb5_handle);
libkrb5_handle = NULL;
}
#else /* SONAME_LIBKRB5 */
static void load_krb5(void)
{
WARN("Kerberos support was not provided at compile time\n");
}
#endif /* SONAME_LIBKRB5 */
static const char *debugstr_us( const UNICODE_STRING *us )
{
if (!us) return "<null>";
return debugstr_wn( us->Buffer, us->Length / sizeof(WCHAR) );
}
static NTSTATUS NTAPI kerberos_LsaApInitializePackage(ULONG package_id, PLSA_DISPATCH_TABLE dispatch,
PLSA_STRING database, PLSA_STRING confidentiality, PLSA_STRING *package_name)
{
char *kerberos_name;
load_krb5();
kerberos_package_id = package_id;
lsa_dispatch = *dispatch;
kerberos_name = lsa_dispatch.AllocateLsaHeap(sizeof(MICROSOFT_KERBEROS_NAME_A));
if (!kerberos_name) return STATUS_NO_MEMORY;
memcpy(kerberos_name, MICROSOFT_KERBEROS_NAME_A, sizeof(MICROSOFT_KERBEROS_NAME_A));
*package_name = lsa_dispatch.AllocateLsaHeap(sizeof(**package_name));
if (!*package_name)
{
lsa_dispatch.FreeLsaHeap(kerberos_name);
return STATUS_NO_MEMORY;
}
RtlInitString(*package_name, kerberos_name);
return STATUS_SUCCESS;
}
#ifdef SONAME_LIBKRB5
struct ticket_info
{
ULONG count, allocated;
KERB_TICKET_CACHE_INFO *info;
};
static NTSTATUS krb5_error_to_status(krb5_error_code error)
{
switch (error)
{
case 0: return STATUS_SUCCESS;
default:
/* FIXME */
return STATUS_UNSUCCESSFUL;
}
}
static void free_ticket_info(struct ticket_info *info)
{
ULONG i;
for (i = 0; i < info->count; i++)
{
heap_free(info->info[i].RealmName.Buffer);
heap_free(info->info[i].ServerName.Buffer);
}
heap_free(info->info);
}
static WCHAR *utf8_to_wstr(const char *utf8)
{
int len;
WCHAR *wstr;
len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
wstr = heap_alloc(len * sizeof(WCHAR));
if (wstr)
MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wstr, len);
return wstr;
}
static NTSTATUS copy_tickets_from_cache(krb5_context context, krb5_ccache cache, struct ticket_info *info)
{
NTSTATUS status;
krb5_cc_cursor cursor;
krb5_error_code error;
krb5_creds credentials;
krb5_ticket *ticket;
char *name_with_realm, *name_without_realm, *realm_name;
WCHAR *realm_nameW, *name_without_realmW;
error = p_krb5_cc_start_seq_get(context, cache, &cursor);
if (error) return krb5_error_to_status(error);
for (;;)
{
error = p_krb5_cc_next_cred(context, cache, &cursor, &credentials);
if (error)
{
if (error == KRB5_CC_END)
status = STATUS_SUCCESS;
else
status = krb5_error_to_status(error);
break;
}
if (p_krb5_is_config_principal(context, credentials.server))
{
p_krb5_free_cred_contents(context, &credentials);
continue;
}
if (info->count == info->allocated)
{
KERB_TICKET_CACHE_INFO *new_info;
ULONG new_allocated;
if (info->allocated)
{
new_allocated = info->allocated * 2;
new_info = heap_realloc(info->info, sizeof(*new_info) * new_allocated);
}
else
{
new_allocated = 16;
new_info = heap_alloc(sizeof(*new_info) * new_allocated);
}
if (!new_info)
{
p_krb5_free_cred_contents(context, &credentials);
status = STATUS_NO_MEMORY;
break;
}
info->info = new_info;
info->allocated = new_allocated;
}
error = p_krb5_unparse_name_flags(context, credentials.server, 0, &name_with_realm);
if (error)
{
p_krb5_free_cred_contents(context, &credentials);
status = krb5_error_to_status(error);
break;
}
TRACE("name_with_realm: %s\n", debugstr_a(name_with_realm));
error = p_krb5_unparse_name_flags(context, credentials.server,
KRB5_PRINCIPAL_UNPARSE_NO_REALM, &name_without_realm);
if (error)
{
p_krb5_free_unparsed_name(context, name_with_realm);
p_krb5_free_cred_contents(context, &credentials);
status = krb5_error_to_status(error);
break;
}
TRACE("name_without_realm: %s\n", debugstr_a(name_without_realm));
name_without_realmW = utf8_to_wstr(name_without_realm);
RtlInitUnicodeString(&info->info[info->count].ServerName, name_without_realmW);
realm_name = strchr(name_with_realm, '@');
if (!realm_name)
{
ERR("wrong name with realm %s\n", debugstr_a(name_with_realm));
realm_name = name_with_realm;
}
else
realm_name++;
/* realm_name - now contains only realm! */
realm_nameW = utf8_to_wstr(realm_name);
RtlInitUnicodeString(&info->info[info->count].RealmName, realm_nameW);
if (!credentials.times.starttime)
credentials.times.starttime = credentials.times.authtime;
/* TODO: if krb5_is_config_principal = true */
RtlSecondsSince1970ToTime(credentials.times.starttime, &info->info[info->count].StartTime);
RtlSecondsSince1970ToTime(credentials.times.endtime, &info->info[info->count].EndTime);
RtlSecondsSince1970ToTime(credentials.times.renew_till, &info->info[info->count].RenewTime);
info->info[info->count].TicketFlags = credentials.ticket_flags;
error = p_krb5_decode_ticket(&credentials.ticket, &ticket);
p_krb5_free_unparsed_name(context, name_with_realm);
p_krb5_free_unparsed_name(context, name_without_realm);
p_krb5_free_cred_contents(context, &credentials);
if (error)
{
status = krb5_error_to_status(error);
break;
}
info->info[info->count].EncryptionType = ticket->enc_part.enctype;
p_krb5_free_ticket(context, ticket);
info->count++;
}
p_krb5_cc_end_seq_get(context, cache, &cursor);
return status;
}
static inline void init_client_us(UNICODE_STRING *dst, void *client_ws, const UNICODE_STRING *src)
{
dst->Buffer = client_ws;
dst->Length = src->Length;
dst->MaximumLength = src->MaximumLength;
}
static NTSTATUS copy_to_client(PLSA_CLIENT_REQUEST lsa_req, struct ticket_info *info, void **out, ULONG *out_size)
{
NTSTATUS status;
ULONG i;
SIZE_T size, client_str_off;
char *client_resp, *client_ticket, *client_str;
KERB_QUERY_TKT_CACHE_RESPONSE resp;
size = sizeof(KERB_QUERY_TKT_CACHE_RESPONSE);
if (info->count != 0)
size += (info->count - 1) * sizeof(KERB_TICKET_CACHE_INFO);
client_str_off = size;
for (i = 0; i < info->count; i++)
{
size += info->info[i].RealmName.MaximumLength;
size += info->info[i].ServerName.MaximumLength;
}
status = lsa_dispatch.AllocateClientBuffer(lsa_req, size, (void **)&client_resp);
if (status != STATUS_SUCCESS) return status;
resp.MessageType = KerbQueryTicketCacheMessage;
resp.CountOfTickets = info->count;
size = FIELD_OFFSET(KERB_QUERY_TKT_CACHE_RESPONSE, Tickets);
status = lsa_dispatch.CopyToClientBuffer(lsa_req, size, client_resp, &resp);
if (status != STATUS_SUCCESS) goto fail;
if (!info->count)
{
*out = client_resp;
*out_size = sizeof(resp);
return STATUS_SUCCESS;
}
*out_size = size;
client_ticket = client_resp + size;
client_str = client_resp + client_str_off;
for (i = 0; i < info->count; i++)
{
KERB_TICKET_CACHE_INFO ticket;
ticket = info->info[i];
init_client_us(&ticket.RealmName, client_str, &info->info[i].RealmName);
size = info->info[i].RealmName.MaximumLength;
status = lsa_dispatch.CopyToClientBuffer(lsa_req, size, client_str, info->info[i].RealmName.Buffer);
if (status != STATUS_SUCCESS) goto fail;
client_str += size;
*out_size += size;
init_client_us(&ticket.ServerName, client_str, &info->info[i].ServerName);
size = info->info[i].ServerName.MaximumLength;
status = lsa_dispatch.CopyToClientBuffer(lsa_req, size, client_str, info->info[i].ServerName.Buffer);
if (status != STATUS_SUCCESS) goto fail;
client_str += size;
*out_size += size;
status = lsa_dispatch.CopyToClientBuffer(lsa_req, sizeof(ticket), client_ticket, &ticket);
if (status != STATUS_SUCCESS) goto fail;
client_ticket += sizeof(ticket);
*out_size += sizeof(ticket);
}
*out = client_resp;
return STATUS_SUCCESS;
fail:
lsa_dispatch.FreeClientBuffer(lsa_req, client_resp);
return status;
}
static NTSTATUS query_ticket_cache(PLSA_CLIENT_REQUEST lsa_req, void *in, ULONG in_len, void **out, ULONG *out_len)
{
NTSTATUS status;
KERB_QUERY_TKT_CACHE_REQUEST *query;
struct ticket_info info;
krb5_error_code error;
krb5_context context = NULL;
krb5_cccol_cursor cursor = NULL;
krb5_ccache cache;
if (!in || in_len != sizeof(KERB_QUERY_TKT_CACHE_REQUEST) || !out || !out_len)
return STATUS_INVALID_PARAMETER;
query = (KERB_QUERY_TKT_CACHE_REQUEST *)in;
if (query->LogonId.HighPart != 0 || query->LogonId.LowPart != 0)
return STATUS_ACCESS_DENIED;
info.count = 0;
info.allocated = 0;
info.info = NULL;
error = p_krb5_init_context(&context);
if (error)
{
status = krb5_error_to_status(error);
goto done;
}
error = p_krb5_cccol_cursor_new(context, &cursor);
if (error)
{
status = krb5_error_to_status(error);
goto done;
}
for (;;)
{
error = p_krb5_cccol_cursor_next(context, cursor, &cache);
if (error)
{
status = krb5_error_to_status(error);
goto done;
}
if (!cache) break;
status = copy_tickets_from_cache(context, cache, &info);
p_krb5_cc_close(context, cache);
if (status != STATUS_SUCCESS)
goto done;
}
status = copy_to_client(lsa_req, &info, out, out_len);
done:
if (cursor)
p_krb5_cccol_cursor_free(context, &cursor);
if (context)
p_krb5_free_context(context);
free_ticket_info(&info);
return status;
}
#else /* SONAME_LIBKRB5 */
static NTSTATUS query_ticket_cache(PLSA_CLIENT_REQUEST lsa_req, void *in, ULONG in_len, void **out, ULONG *out_len)
{
FIXME("%p,%p,%u,%p,%p: stub\n", lsa_req, in, in_len, out, out_len);
return STATUS_NOT_IMPLEMENTED;
}
#endif /* SONAME_LIBKRB5 */
static NTSTATUS NTAPI kerberos_LsaApCallPackageUntrusted(PLSA_CLIENT_REQUEST request,
PVOID in_buffer, PVOID client_buffer_base, ULONG in_buffer_length,
PVOID *out_buffer, PULONG out_buffer_length, PNTSTATUS status)
{
KERB_PROTOCOL_MESSAGE_TYPE msg;
TRACE("%p,%p,%p,%u,%p,%p,%p\n", request, in_buffer, client_buffer_base,
in_buffer_length, out_buffer, out_buffer_length, status);
if (!in_buffer || in_buffer_length < sizeof(msg))
return STATUS_INVALID_PARAMETER;
msg = *(KERB_PROTOCOL_MESSAGE_TYPE *)in_buffer;
switch (msg)
{
case KerbQueryTicketCacheMessage:
*status = query_ticket_cache(request, in_buffer, in_buffer_length, out_buffer, out_buffer_length);
break;
case KerbRetrieveTicketMessage:
FIXME("KerbRetrieveTicketMessage stub\n");
*status = STATUS_NOT_IMPLEMENTED;
break;
case KerbPurgeTicketCacheMessage:
FIXME("KerbPurgeTicketCacheMessage stub\n");
*status = STATUS_NOT_IMPLEMENTED;
break;
default: /* All other requests should call LsaApCallPackage */
WARN("%u => access denied\n", msg);
*status = STATUS_ACCESS_DENIED;
break;
}
return *status;
}
static NTSTATUS NTAPI kerberos_SpGetInfo(SecPkgInfoW *info)
{
TRACE("%p\n", info);
/* LSA will make a copy before forwarding the structure, so
* it's safe to put pointers to dynamic or constant data there.
*/
*info = infoW;
return STATUS_SUCCESS;
}
#ifdef SONAME_LIBGSSAPI_KRB5
WINE_DECLARE_DEBUG_CHANNEL(winediag);
static void *libgssapi_krb5_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(gss_accept_sec_context);
MAKE_FUNCPTR(gss_acquire_cred);
MAKE_FUNCPTR(gss_delete_sec_context);
MAKE_FUNCPTR(gss_display_status);
MAKE_FUNCPTR(gss_get_mic);
MAKE_FUNCPTR(gss_import_name);
MAKE_FUNCPTR(gss_init_sec_context);
MAKE_FUNCPTR(gss_inquire_context);
MAKE_FUNCPTR(gss_release_buffer);
MAKE_FUNCPTR(gss_release_cred);
MAKE_FUNCPTR(gss_release_iov_buffer);
MAKE_FUNCPTR(gss_release_name);
MAKE_FUNCPTR(gss_unwrap);
MAKE_FUNCPTR(gss_unwrap_iov);
MAKE_FUNCPTR(gss_verify_mic);
MAKE_FUNCPTR(gss_wrap);
MAKE_FUNCPTR(gss_wrap_iov);
#undef MAKE_FUNCPTR
static BOOL load_gssapi_krb5(void)
{
if (!(libgssapi_krb5_handle = dlopen( SONAME_LIBGSSAPI_KRB5, RTLD_NOW )))
{
ERR_(winediag)( "Failed to load libgssapi_krb5, Kerberos SSP support will not be available.\n" );
return FALSE;
}
#define LOAD_FUNCPTR(f) \
if (!(p##f = dlsym( libgssapi_krb5_handle, #f ))) \
{ \
ERR( "Failed to load %s\n", #f ); \
goto fail; \
}
LOAD_FUNCPTR(gss_accept_sec_context)
LOAD_FUNCPTR(gss_acquire_cred)
LOAD_FUNCPTR(gss_delete_sec_context)
LOAD_FUNCPTR(gss_display_status)
LOAD_FUNCPTR(gss_get_mic)
LOAD_FUNCPTR(gss_import_name)
LOAD_FUNCPTR(gss_init_sec_context)
LOAD_FUNCPTR(gss_inquire_context)
LOAD_FUNCPTR(gss_release_buffer)
LOAD_FUNCPTR(gss_release_cred)
LOAD_FUNCPTR(gss_release_iov_buffer)
LOAD_FUNCPTR(gss_release_name)
LOAD_FUNCPTR(gss_unwrap)
LOAD_FUNCPTR(gss_unwrap_iov)
LOAD_FUNCPTR(gss_verify_mic)
LOAD_FUNCPTR(gss_wrap)
LOAD_FUNCPTR(gss_wrap_iov)
#undef LOAD_FUNCPTR
return TRUE;
fail:
dlclose( libgssapi_krb5_handle );
libgssapi_krb5_handle = NULL;
return FALSE;
}
static void unload_gssapi_krb5(void)
{
dlclose( libgssapi_krb5_handle );
libgssapi_krb5_handle = NULL;
}
static inline gss_ctx_id_t ctxthandle_sspi_to_gss( LSA_SEC_HANDLE ctxt )
{
if (!ctxt) return GSS_C_NO_CONTEXT;
return (gss_ctx_id_t)ctxt;
}
static NTSTATUS status_gss_to_sspi( OM_uint32 status )
{
switch (status)
{
case GSS_S_COMPLETE: return SEC_E_OK;
case GSS_S_BAD_MECH: return SEC_E_SECPKG_NOT_FOUND;
case GSS_S_BAD_SIG: return SEC_E_MESSAGE_ALTERED;
case GSS_S_NO_CRED: return SEC_E_NO_CREDENTIALS;
case GSS_S_NO_CONTEXT: return SEC_E_INVALID_HANDLE;
case GSS_S_DEFECTIVE_TOKEN: return SEC_E_INVALID_TOKEN;
case GSS_S_DEFECTIVE_CREDENTIAL: return SEC_E_NO_CREDENTIALS;
case GSS_S_CREDENTIALS_EXPIRED: return SEC_E_CONTEXT_EXPIRED;
case GSS_S_CONTEXT_EXPIRED: return SEC_E_CONTEXT_EXPIRED;
case GSS_S_BAD_QOP: return SEC_E_QOP_NOT_SUPPORTED;
case GSS_S_CONTINUE_NEEDED: return SEC_I_CONTINUE_NEEDED;
case GSS_S_DUPLICATE_TOKEN: return SEC_E_INVALID_TOKEN;
case GSS_S_OLD_TOKEN: return SEC_E_INVALID_TOKEN;
case GSS_S_UNSEQ_TOKEN: return SEC_E_OUT_OF_SEQUENCE;
case GSS_S_GAP_TOKEN: return SEC_E_OUT_OF_SEQUENCE;
case GSS_S_FAILURE: return SEC_E_INTERNAL_ERROR;
default:
FIXME( "couldn't convert status 0x%08x to NTSTATUS\n", status );
return SEC_E_INTERNAL_ERROR;
}
}
static void trace_gss_status_ex( OM_uint32 code, int type )
{
OM_uint32 ret, minor_status;
gss_buffer_desc buf;
OM_uint32 message_context = 0;
for (;;)
{
ret = pgss_display_status( &minor_status, code, type, GSS_C_NULL_OID, &message_context, &buf );
if (GSS_ERROR(ret))
{
TRACE( "gss_display_status(0x%08x,%d) returned %08x minor status %08x\n",
code, type, ret, minor_status );
return;
}
TRACE( "GSS-API error: 0x%08x: %s\n", code, debugstr_an(buf.value, buf.length) );
pgss_release_buffer( &minor_status, &buf );
if (!message_context) return;
}
}
static void trace_gss_status( OM_uint32 major_status, OM_uint32 minor_status )
{
if (TRACE_ON(kerberos))
{
trace_gss_status_ex( major_status, GSS_C_GSS_CODE );
trace_gss_status_ex( minor_status, GSS_C_MECH_CODE );
}
}
static BOOL is_dce_style_context( gss_ctx_id_t ctxt_handle )
{
OM_uint32 ret, minor_status, flags;
ret = pgss_inquire_context( &minor_status, ctxt_handle, NULL, NULL, NULL, NULL, &flags, NULL, NULL );
return (ret == GSS_S_COMPLETE && (flags & GSS_C_DCE_STYLE));
}
static int get_buffer_index( SecBufferDesc *desc, DWORD type )
{
UINT i;
if (!desc) return -1;
for (i = 0; i < desc->cBuffers; i++)
{
if (desc->pBuffers[i].BufferType == type) return i;
}
return -1;
}
#endif /* SONAME_LIBGSSAPI_KRB5 */
static char *get_str_unixcp( const UNICODE_STRING *str )
{
char *ret;
int len = WideCharToMultiByte( CP_UNIXCP, 0, str->Buffer, str->Length / sizeof(WCHAR), NULL, 0, NULL, NULL );
if (!(ret = heap_alloc( len + 1 ))) return NULL;
WideCharToMultiByte( CP_UNIXCP, 0, str->Buffer, str->Length / sizeof(WCHAR), ret, len, NULL, NULL );
ret[len] = 0;
return ret;
}
static char *get_username_unixcp( const WCHAR *user, ULONG user_len, const WCHAR *domain, ULONG domain_len )
{
int len_user, len_domain;
char *ret;
len_user = WideCharToMultiByte( CP_UNIXCP, 0, user, user_len, NULL, 0, NULL, NULL );
len_domain = WideCharToMultiByte( CP_UNIXCP, 0, domain, domain_len, NULL, 0, NULL, NULL );
if (!(ret = heap_alloc( len_user + len_domain + 2 ))) return NULL;
WideCharToMultiByte( CP_UNIXCP, 0, user, user_len, ret, len_user, NULL, NULL );
ret[len_user] = '@';
WideCharToMultiByte( CP_UNIXCP, 0, domain, domain_len, ret + len_user + 1, len_domain, NULL, NULL );
ret[len_user + len_domain + 1] = 0;
return ret;
}
static char *get_password_unixcp( const WCHAR *passwd, ULONG passwd_len )
{
int len;
char *ret;
len = WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, passwd, passwd_len, NULL, 0, NULL, NULL );
if (!(ret = heap_alloc( len + 1 ))) return NULL;
WideCharToMultiByte( CP_UNIXCP, 0, passwd, passwd_len, ret, len, NULL, NULL );
ret[len] = 0;
return ret;
}
static NTSTATUS NTAPI kerberos_SpAcquireCredentialsHandle(
UNICODE_STRING *principal_us, ULONG credential_use, LUID *logon_id, void *auth_data,
void *get_key_fn, void *get_key_arg, LSA_SEC_HANDLE *credential, TimeStamp *expiry )
{
char *principal = NULL, *username = NULL, *password = NULL;
SEC_WINNT_AUTH_IDENTITY_W *id = auth_data;
NTSTATUS status = SEC_E_INSUFFICIENT_MEMORY;
TRACE( "(%s 0x%08x %p %p %p %p %p %p)\n", debugstr_us(principal_us), credential_use,
logon_id, auth_data, get_key_fn, get_key_arg, credential, expiry );
if (principal_us && !(principal = get_str_unixcp( principal_us ))) return SEC_E_INSUFFICIENT_MEMORY;
if (id)
{
if (id->Flags & SEC_WINNT_AUTH_IDENTITY_ANSI)
{
FIXME( "ANSI identity not supported\n" );
status = SEC_E_UNSUPPORTED_FUNCTION;
goto done;
}
if (!(username = get_username_unixcp( id->User, id->UserLength, id->Domain, id->DomainLength ))) goto done;
if (!(password = get_password_unixcp( id->Password, id->PasswordLength ))) goto done;
}
status = krb5_funcs->acquire_credentials_handle( principal, credential_use, username, password, credential,
expiry );
done:
heap_free( principal );
heap_free( username );
heap_free( password );
return status;
}
static NTSTATUS NTAPI kerberos_SpFreeCredentialsHandle( LSA_SEC_HANDLE credential )
{
TRACE( "(%lx)\n", credential );
if (!credential) return SEC_E_INVALID_HANDLE;
return krb5_funcs->free_credentials_handle( credential );
}
static NTSTATUS NTAPI kerberos_SpInitLsaModeContext( LSA_SEC_HANDLE credential, LSA_SEC_HANDLE context,
UNICODE_STRING *target_name, ULONG context_req, ULONG target_data_rep, SecBufferDesc *input,
LSA_SEC_HANDLE *new_context, SecBufferDesc *output, ULONG *context_attr, TimeStamp *expiry,
BOOLEAN *mapped_context, SecBuffer *context_data )
{
static const ULONG supported = ISC_REQ_CONFIDENTIALITY | ISC_REQ_INTEGRITY | ISC_REQ_SEQUENCE_DETECT |
ISC_REQ_REPLAY_DETECT | ISC_REQ_MUTUAL_AUTH | ISC_REQ_USE_DCE_STYLE |
ISC_REQ_IDENTIFY | ISC_REQ_CONNECTION;
char *target = NULL;
NTSTATUS status;
TRACE( "(%lx %lx %s 0x%08x %u %p %p %p %p %p %p %p)\n", credential, context, debugstr_us(target_name),
context_req, target_data_rep, input, new_context, output, context_attr, expiry,
mapped_context, context_data );
if (context_req & ~supported) FIXME( "flags 0x%08x not supported\n", context_req & ~supported );
if (!context && !input && !credential) return SEC_E_INVALID_HANDLE;
if (target_name && !(target = get_str_unixcp( target_name ))) return SEC_E_INSUFFICIENT_MEMORY;
status = krb5_funcs->initialize_context( credential, context, target, context_req, input, new_context, output,
context_attr, expiry );
if (!status) *mapped_context = TRUE;
/* FIXME: initialize context_data */
heap_free( target );
return status;
}
static NTSTATUS NTAPI kerberos_SpAcceptLsaModeContext( LSA_SEC_HANDLE credential, LSA_SEC_HANDLE context,
SecBufferDesc *input, ULONG context_req, ULONG target_data_rep, LSA_SEC_HANDLE *new_context,
SecBufferDesc *output, ULONG *context_attr, TimeStamp *expiry, BOOLEAN *mapped_context, SecBuffer *context_data )
{
NTSTATUS status;
TRACE( "(%lx %lx 0x%08x %u %p %p %p %p %p %p %p)\n", credential, context, context_req, target_data_rep, input,
new_context, output, context_attr, expiry, mapped_context, context_data );
if (context_req) FIXME( "ignoring flags 0x%08x\n", context_req );
if (!context && !input && !credential) return SEC_E_INVALID_HANDLE;
status = krb5_funcs->accept_context( credential, context, input, new_context, output, context_attr, expiry );
if (!status) *mapped_context = TRUE;
/* FIXME: initialize context_data */
return status;
}
static NTSTATUS NTAPI kerberos_SpDeleteContext( LSA_SEC_HANDLE context )
{
TRACE( "(%lx)\n", context );
if (!context) return SEC_E_INVALID_HANDLE;
return krb5_funcs->delete_context( context );
}
static SecPkgInfoW *build_package_info( const SecPkgInfoW *info )
{
SecPkgInfoW *ret;
DWORD size_name = (strlenW(info->Name) + 1) * sizeof(WCHAR);
DWORD size_comment = (strlenW(info->Comment) + 1) * sizeof(WCHAR);
if (!(ret = heap_alloc( sizeof(*ret) + size_name + size_comment ))) return NULL;
ret->fCapabilities = info->fCapabilities;
ret->wVersion = info->wVersion;
ret->wRPCID = info->wRPCID;
ret->cbMaxToken = info->cbMaxToken;
ret->Name = (SEC_WCHAR *)(ret + 1);
memcpy( ret->Name, info->Name, size_name );
ret->Comment = (SEC_WCHAR *)((char *)ret->Name + size_name);
memcpy( ret->Comment, info->Comment, size_comment );
return ret;
}
static NTSTATUS NTAPI kerberos_SpQueryContextAttributes( LSA_SEC_HANDLE context, ULONG attribute, void *buffer )
{
TRACE( "(%lx %u %p)\n", context, attribute, buffer );
if (!context) return SEC_E_INVALID_HANDLE;
switch (attribute)
{
#define X(x) case (x) : FIXME(#x" stub\n"); break
X(SECPKG_ATTR_ACCESS_TOKEN);
X(SECPKG_ATTR_AUTHORITY);
X(SECPKG_ATTR_DCE_INFO);
X(SECPKG_ATTR_KEY_INFO);
X(SECPKG_ATTR_LIFESPAN);
X(SECPKG_ATTR_NAMES);
X(SECPKG_ATTR_NATIVE_NAMES);
X(SECPKG_ATTR_PACKAGE_INFO);
X(SECPKG_ATTR_PASSWORD_EXPIRY);
X(SECPKG_ATTR_SESSION_KEY);
X(SECPKG_ATTR_STREAM_SIZES);
X(SECPKG_ATTR_TARGET_INFORMATION);
case SECPKG_ATTR_SIZES:
{
SecPkgContext_Sizes *sizes = (SecPkgContext_Sizes *)buffer;
ULONG size_max_signature = 37, size_security_trailer = 49;
#ifdef SONAME_LIBGSSAPI_KRB5
gss_ctx_id_t ctxt_handle;
if (!(ctxt_handle = ctxthandle_sspi_to_gss( context ))) return SEC_E_INVALID_HANDLE;
if (is_dce_style_context( ctxt_handle ))
{
size_max_signature = 28;
size_security_trailer = 76;
}
#endif
sizes->cbMaxToken = KERBEROS_MAX_BUF;
sizes->cbMaxSignature = size_max_signature;
sizes->cbBlockSize = 1;
sizes->cbSecurityTrailer = size_security_trailer;
return SEC_E_OK;
}
case SECPKG_ATTR_NEGOTIATION_INFO:
{
SecPkgContext_NegotiationInfoW *info = (SecPkgContext_NegotiationInfoW *)buffer;
if (!(info->PackageInfo = build_package_info( &infoW ))) return SEC_E_INSUFFICIENT_MEMORY;
info->NegotiationState = SECPKG_NEGOTIATION_COMPLETE;
return SEC_E_OK;
}
#undef X
default:
FIXME( "unknown attribute %u\n", attribute );
break;
}
return SEC_E_UNSUPPORTED_FUNCTION;
}
static NTSTATUS NTAPI kerberos_SpInitialize(ULONG_PTR package_id, SECPKG_PARAMETERS *params,
LSA_SECPKG_FUNCTION_TABLE *lsa_function_table)
{
TRACE("%lu,%p,%p\n", package_id, params, lsa_function_table);
if (!krb5_funcs && __wine_init_unix_lib( instance, DLL_PROCESS_ATTACH, NULL, &krb5_funcs ))
{
WARN( "no Kerberos support\n" );
return STATUS_UNSUCCESSFUL;
}
#ifdef SONAME_LIBGSSAPI_KRB5
if (load_gssapi_krb5()) return STATUS_SUCCESS;
#endif
return STATUS_SUCCESS;
}
static NTSTATUS NTAPI kerberos_SpShutdown(void)
{
TRACE("\n");
#ifdef SONAME_LIBGSSAPI_KRB5
unload_gssapi_krb5();
#endif
return STATUS_SUCCESS;
}
static SECPKG_FUNCTION_TABLE kerberos_table =
{
kerberos_LsaApInitializePackage, /* InitializePackage */
NULL, /* LsaLogonUser */
NULL, /* CallPackage */
NULL, /* LogonTerminated */
kerberos_LsaApCallPackageUntrusted, /* CallPackageUntrusted */
NULL, /* CallPackagePassthrough */
NULL, /* LogonUserEx */
NULL, /* LogonUserEx2 */
kerberos_SpInitialize,
kerberos_SpShutdown,
kerberos_SpGetInfo,
NULL, /* AcceptCredentials */
kerberos_SpAcquireCredentialsHandle,
NULL, /* SpQueryCredentialsAttributes */
kerberos_SpFreeCredentialsHandle,
NULL, /* SaveCredentials */
NULL, /* GetCredentials */
NULL, /* DeleteCredentials */
kerberos_SpInitLsaModeContext,
kerberos_SpAcceptLsaModeContext,
kerberos_SpDeleteContext,
NULL, /* ApplyControlToken */
NULL, /* GetUserInfo */
NULL, /* GetExtendedInformation */
kerberos_SpQueryContextAttributes,
NULL, /* SpAddCredentials */
NULL, /* SetExtendedInformation */
NULL, /* SetContextAttributes */
NULL, /* SetCredentialsAttributes */
NULL, /* ChangeAccountPassword */
NULL, /* QueryMetaData */
NULL, /* ExchangeMetaData */
NULL, /* GetCredUIContext */
NULL, /* UpdateCredentials */
NULL, /* ValidateTargetInfo */
NULL, /* PostLogonUser */
};
NTSTATUS NTAPI SpLsaModeInitialize(ULONG lsa_version, PULONG package_version,
PSECPKG_FUNCTION_TABLE *table, PULONG table_count)
{
TRACE("%#x,%p,%p,%p\n", lsa_version, package_version, table, table_count);
*package_version = SECPKG_INTERFACE_VERSION;
*table = &kerberos_table;
*table_count = 1;
return STATUS_SUCCESS;
}
static NTSTATUS NTAPI kerberos_SpInstanceInit(ULONG version, SECPKG_DLL_FUNCTIONS *dll_function_table, void **user_functions)
{
TRACE("%#x,%p,%p\n", version, dll_function_table, user_functions);
return STATUS_SUCCESS;
}
static NTSTATUS SEC_ENTRY kerberos_SpMakeSignature( LSA_SEC_HANDLE context, ULONG quality_of_protection,
SecBufferDesc *message, ULONG message_seq_no )
{
#ifdef SONAME_LIBGSSAPI_KRB5
OM_uint32 ret, minor_status;
gss_buffer_desc data_buffer, token_buffer;
gss_ctx_id_t ctxt_handle;
int data_idx, token_idx;
TRACE( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
if (quality_of_protection) FIXME( "ignoring quality_of_protection 0x%08x\n", quality_of_protection );
if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
if (!context) return SEC_E_INVALID_HANDLE;
ctxt_handle = ctxthandle_sspi_to_gss( context );
/* FIXME: multiple data buffers, read-only buffers */
if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
data_buffer.length = message->pBuffers[data_idx].cbBuffer;
data_buffer.value = message->pBuffers[data_idx].pvBuffer;
if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
token_buffer.length = 0;
token_buffer.value = NULL;
ret = pgss_get_mic( &minor_status, ctxt_handle, GSS_C_QOP_DEFAULT, &data_buffer, &token_buffer );
TRACE( "gss_get_mic returned %08x minor status %08x\n", ret, minor_status );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE)
{
memcpy( message->pBuffers[token_idx].pvBuffer, token_buffer.value, token_buffer.length );
message->pBuffers[token_idx].cbBuffer = token_buffer.length;
pgss_release_buffer( &minor_status, &token_buffer );
}
return status_gss_to_sspi( ret );
#else
FIXME( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
return SEC_E_UNSUPPORTED_FUNCTION;
#endif
}
static NTSTATUS NTAPI kerberos_SpVerifySignature( LSA_SEC_HANDLE context, SecBufferDesc *message,
ULONG message_seq_no, ULONG *quality_of_protection )
{
#ifdef SONAME_LIBGSSAPI_KRB5
OM_uint32 ret, minor_status;
gss_buffer_desc data_buffer, token_buffer;
gss_ctx_id_t ctxt_handle;
int data_idx, token_idx;
TRACE( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
if (!context) return SEC_E_INVALID_HANDLE;
ctxt_handle = ctxthandle_sspi_to_gss( context );
if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
data_buffer.length = message->pBuffers[data_idx].cbBuffer;
data_buffer.value = message->pBuffers[data_idx].pvBuffer;
if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
token_buffer.length = message->pBuffers[token_idx].cbBuffer;
token_buffer.value = message->pBuffers[token_idx].pvBuffer;
ret = pgss_verify_mic( &minor_status, ctxt_handle, &data_buffer, &token_buffer, NULL );
TRACE( "gss_verify_mic returned %08x minor status %08x\n", ret, minor_status );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE && quality_of_protection) *quality_of_protection = 0;
return status_gss_to_sspi( ret );
#else
FIXME( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
return SEC_E_UNSUPPORTED_FUNCTION;
#endif
}
#ifdef SONAME_LIBGSSAPI_KRB5
static NTSTATUS seal_message_iov( gss_ctx_id_t ctxt_handle, SecBufferDesc *message, ULONG quality_of_protection )
{
gss_iov_buffer_desc iov[4];
OM_uint32 ret, minor_status;
int token_idx, data_idx, conf_flag, conf_state;
if (!quality_of_protection)
conf_flag = 1; /* confidentiality + integrity */
else if (quality_of_protection == SECQOP_WRAP_NO_ENCRYPT)
conf_flag = 0; /* only integrity */
else
{
FIXME( "QOP %08x not supported\n", quality_of_protection );
return SEC_E_UNSUPPORTED_FUNCTION;
}
/* FIXME: multiple data buffers, read-only buffers */
if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
iov[0].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY | GSS_IOV_BUFFER_FLAG_ALLOCATE;
iov[0].buffer.length = 0;
iov[0].buffer.value = NULL;
iov[1].type = GSS_IOV_BUFFER_TYPE_DATA;
iov[1].buffer.length = message->pBuffers[data_idx].cbBuffer;
iov[1].buffer.value = message->pBuffers[data_idx].pvBuffer;
iov[2].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY | GSS_IOV_BUFFER_FLAG_ALLOCATE;
iov[2].buffer.length = 0;
iov[2].buffer.value = NULL;
iov[3].type = GSS_IOV_BUFFER_TYPE_HEADER | GSS_IOV_BUFFER_FLAG_ALLOCATE;
iov[3].buffer.length = 0;
iov[3].buffer.value = NULL;
ret = pgss_wrap_iov( &minor_status, ctxt_handle, conf_flag, GSS_C_QOP_DEFAULT, &conf_state, iov, 4 );
TRACE( "gss_wrap_iov returned %08x minor status %08x\n", ret, minor_status );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE)
{
memcpy( message->pBuffers[token_idx].pvBuffer, iov[3].buffer.value, iov[3].buffer.length );
message->pBuffers[token_idx].cbBuffer = iov[3].buffer.length;
pgss_release_iov_buffer( &minor_status, iov, 4 );
}
return status_gss_to_sspi( ret );
}
static NTSTATUS seal_message( gss_ctx_id_t ctxt_handle, SecBufferDesc *message, ULONG quality_of_protection )
{
gss_buffer_desc input, output;
OM_uint32 ret, minor_status;
int token_idx, data_idx, conf_flag, conf_state;
if (!quality_of_protection)
conf_flag = 1; /* confidentiality + integrity */
else if (quality_of_protection == SECQOP_WRAP_NO_ENCRYPT)
conf_flag = 0; /* only integrity */
else
{
FIXME( "QOP %08x not supported\n", quality_of_protection );
return SEC_E_UNSUPPORTED_FUNCTION;
}
/* FIXME: multiple data buffers, read-only buffers */
if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
input.length = message->pBuffers[data_idx].cbBuffer;
input.value = message->pBuffers[data_idx].pvBuffer;
ret = pgss_wrap( &minor_status, ctxt_handle, conf_flag, GSS_C_QOP_DEFAULT, &input, &conf_state, &output );
TRACE( "gss_wrap returned %08x minor status %08x\n", ret, minor_status );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE)
{
DWORD len_data = message->pBuffers[data_idx].cbBuffer, len_token = message->pBuffers[token_idx].cbBuffer;
if (len_token < output.length - len_data)
{
TRACE( "buffer too small %lu > %u\n", (SIZE_T)output.length - len_data, len_token );
pgss_release_buffer( &minor_status, &output );
return SEC_E_BUFFER_TOO_SMALL;
}
memcpy( message->pBuffers[data_idx].pvBuffer, output.value, len_data );
memcpy( message->pBuffers[token_idx].pvBuffer, (char *)output.value + len_data, output.length - len_data );
message->pBuffers[token_idx].cbBuffer = output.length - len_data;
pgss_release_buffer( &minor_status, &output );
}
return status_gss_to_sspi( ret );
}
#endif
static NTSTATUS NTAPI kerberos_SpSealMessage( LSA_SEC_HANDLE context, ULONG quality_of_protection,
SecBufferDesc *message, ULONG message_seq_no )
{
#ifdef SONAME_LIBGSSAPI_KRB5
gss_ctx_id_t ctxt_handle;
TRACE( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
if (!context) return SEC_E_INVALID_HANDLE;
ctxt_handle = ctxthandle_sspi_to_gss( context );
if (is_dce_style_context( ctxt_handle )) return seal_message_iov( ctxt_handle, message, quality_of_protection );
return seal_message( ctxt_handle, message, quality_of_protection );
#else
FIXME( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
return SEC_E_UNSUPPORTED_FUNCTION;
#endif
}
#ifdef SONAME_LIBGSSAPI_KRB5
static NTSTATUS unseal_message_iov( gss_ctx_id_t ctxt_handle, SecBufferDesc *message, ULONG *quality_of_protection )
{
gss_iov_buffer_desc iov[4];
OM_uint32 ret, minor_status;
int token_idx, data_idx, conf_state;
if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
iov[0].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY;
iov[0].buffer.length = 0;
iov[0].buffer.value = NULL;
iov[1].type = GSS_IOV_BUFFER_TYPE_DATA;
iov[1].buffer.length = message->pBuffers[data_idx].cbBuffer;
iov[1].buffer.value = message->pBuffers[data_idx].pvBuffer;
iov[2].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY;
iov[2].buffer.length = 0;
iov[2].buffer.value = NULL;
iov[3].type = GSS_IOV_BUFFER_TYPE_HEADER;
iov[3].buffer.length = message->pBuffers[token_idx].cbBuffer;
iov[3].buffer.value = message->pBuffers[token_idx].pvBuffer;
ret = pgss_unwrap_iov( &minor_status, ctxt_handle, &conf_state, NULL, iov, 4 );
TRACE( "gss_unwrap_iov returned %08x minor status %08x\n", ret, minor_status );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE && quality_of_protection)
{
*quality_of_protection = (conf_state ? 0 : SECQOP_WRAP_NO_ENCRYPT);
}
return status_gss_to_sspi( ret );
}
static NTSTATUS unseal_message( gss_ctx_id_t ctxt_handle, SecBufferDesc *message, ULONG *quality_of_protection )
{
gss_buffer_desc input, output;
OM_uint32 ret, minor_status;
int token_idx, data_idx, conf_state;
DWORD len_data, len_token;
if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
len_data = message->pBuffers[data_idx].cbBuffer;
len_token = message->pBuffers[token_idx].cbBuffer;
input.length = len_data + len_token;
if (!(input.value = heap_alloc( input.length ))) return SEC_E_INSUFFICIENT_MEMORY;
memcpy( input.value, message->pBuffers[data_idx].pvBuffer, len_data );
memcpy( (char *)input.value + len_data, message->pBuffers[token_idx].pvBuffer, len_token );
ret = pgss_unwrap( &minor_status, ctxt_handle, &input, &output, &conf_state, NULL );
heap_free( input.value );
TRACE( "gss_unwrap returned %08x minor status %08x\n", ret, minor_status );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE)
{
if (quality_of_protection) *quality_of_protection = (conf_state ? 0 : SECQOP_WRAP_NO_ENCRYPT);
memcpy( message->pBuffers[data_idx].pvBuffer, output.value, len_data );
pgss_release_buffer( &minor_status, &output );
}
return status_gss_to_sspi( ret );
}
#endif
static NTSTATUS NTAPI kerberos_SpUnsealMessage( LSA_SEC_HANDLE context, SecBufferDesc *message,
ULONG message_seq_no, ULONG *quality_of_protection )
{
#ifdef SONAME_LIBGSSAPI_KRB5
gss_ctx_id_t ctxt_handle;
TRACE( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
if (!context) return SEC_E_INVALID_HANDLE;
ctxt_handle = ctxthandle_sspi_to_gss( context );
if (is_dce_style_context( ctxt_handle )) return unseal_message_iov( ctxt_handle, message, quality_of_protection );
return unseal_message( ctxt_handle, message, quality_of_protection );
#else
FIXME( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
return SEC_E_UNSUPPORTED_FUNCTION;
#endif
}
static SECPKG_USER_FUNCTION_TABLE kerberos_user_table =
{
kerberos_SpInstanceInit,
NULL, /* SpInitUserModeContext */
kerberos_SpMakeSignature,
kerberos_SpVerifySignature,
kerberos_SpSealMessage,
kerberos_SpUnsealMessage,
NULL, /* SpGetContextToken */
NULL, /* SpQueryContextAttributes */
NULL, /* SpCompleteAuthToken */
NULL, /* SpDeleteContext */
NULL, /* SpFormatCredentialsFn */
NULL, /* SpMarshallSupplementalCreds */
NULL, /* SpExportSecurityContext */
NULL /* SpImportSecurityContext */
};
NTSTATUS NTAPI SpUserModeInitialize(ULONG lsa_version, PULONG package_version,
PSECPKG_USER_FUNCTION_TABLE *table, PULONG table_count)
{
TRACE("%#x,%p,%p,%p\n", lsa_version, package_version, table, table_count);
*package_version = SECPKG_INTERFACE_VERSION;
*table = &kerberos_user_table;
*table_count = 1;
return STATUS_SUCCESS;
}
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, void *reserved )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
instance = hinst;
DisableThreadLibraryCalls( hinst );
break;
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
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