1 /* Copyright (C) 2005 Juan Lang
2 * Copyright 2008 Henri Verbeet
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18 * This file implements the schannel provider, or, the SSL/TLS implementations.
21 #include "wine/port.h"
31 #include "secur32_priv.h"
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(secur32
);
36 #if defined(SONAME_LIBGNUTLS) || defined (HAVE_SECURITY_SECURITY_H)
38 #define SCHAN_INVALID_HANDLE ~0UL
40 enum schan_handle_type
50 enum schan_handle_type type
;
53 struct schan_credentials
56 schan_imp_certificate_credentials credentials
;
61 schan_imp_session session
;
65 static struct schan_handle
*schan_handle_table
;
66 static struct schan_handle
*schan_free_handles
;
67 static SIZE_T schan_handle_table_size
;
68 static SIZE_T schan_handle_count
;
70 static ULONG_PTR
schan_alloc_handle(void *object
, enum schan_handle_type type
)
72 struct schan_handle
*handle
;
74 if (schan_free_handles
)
76 DWORD index
= schan_free_handles
- schan_handle_table
;
77 /* Use a free handle */
78 handle
= schan_free_handles
;
79 if (handle
->type
!= SCHAN_HANDLE_FREE
)
81 ERR("Handle %d(%p) is in the free list, but has type %#x.\n", index
, handle
, handle
->type
);
82 return SCHAN_INVALID_HANDLE
;
84 schan_free_handles
= handle
->object
;
85 handle
->object
= object
;
90 if (!(schan_handle_count
< schan_handle_table_size
))
93 SIZE_T new_size
= schan_handle_table_size
+ (schan_handle_table_size
>> 1);
94 struct schan_handle
*new_table
= HeapReAlloc(GetProcessHeap(), 0, schan_handle_table
, new_size
* sizeof(*schan_handle_table
));
97 ERR("Failed to grow the handle table\n");
98 return SCHAN_INVALID_HANDLE
;
100 schan_handle_table
= new_table
;
101 schan_handle_table_size
= new_size
;
104 handle
= &schan_handle_table
[schan_handle_count
++];
105 handle
->object
= object
;
108 return handle
- schan_handle_table
;
111 static void *schan_free_handle(ULONG_PTR handle_idx
, enum schan_handle_type type
)
113 struct schan_handle
*handle
;
116 if (handle_idx
== SCHAN_INVALID_HANDLE
) return NULL
;
117 if (handle_idx
>= schan_handle_count
) return NULL
;
118 handle
= &schan_handle_table
[handle_idx
];
119 if (handle
->type
!= type
)
121 ERR("Handle %ld(%p) is not of type %#x\n", handle_idx
, handle
, type
);
125 object
= handle
->object
;
126 handle
->object
= schan_free_handles
;
127 handle
->type
= SCHAN_HANDLE_FREE
;
128 schan_free_handles
= handle
;
133 static void *schan_get_object(ULONG_PTR handle_idx
, enum schan_handle_type type
)
135 struct schan_handle
*handle
;
137 if (handle_idx
== SCHAN_INVALID_HANDLE
) return NULL
;
138 if (handle_idx
>= schan_handle_count
) return NULL
;
139 handle
= &schan_handle_table
[handle_idx
];
140 if (handle
->type
!= type
)
142 ERR("Handle %ld(%p) is not of type %#x\n", handle_idx
, handle
, type
);
146 return handle
->object
;
149 static SECURITY_STATUS
schan_QueryCredentialsAttributes(
150 PCredHandle phCredential
, ULONG ulAttribute
, VOID
*pBuffer
)
156 case SECPKG_ATTR_SUPPORTED_ALGS
:
159 /* FIXME: get from CryptoAPI */
160 FIXME("SECPKG_ATTR_SUPPORTED_ALGS: stub\n");
161 ret
= SEC_E_UNSUPPORTED_FUNCTION
;
164 ret
= SEC_E_INTERNAL_ERROR
;
166 case SECPKG_ATTR_CIPHER_STRENGTHS
:
169 SecPkgCred_CipherStrengths
*r
= pBuffer
;
171 /* FIXME: get from CryptoAPI */
172 FIXME("SECPKG_ATTR_CIPHER_STRENGTHS: semi-stub\n");
173 r
->dwMinimumCipherStrength
= 40;
174 r
->dwMaximumCipherStrength
= 168;
178 ret
= SEC_E_INTERNAL_ERROR
;
180 case SECPKG_ATTR_SUPPORTED_PROTOCOLS
:
183 /* FIXME: get from OpenSSL? */
184 FIXME("SECPKG_ATTR_SUPPORTED_PROTOCOLS: stub\n");
185 ret
= SEC_E_UNSUPPORTED_FUNCTION
;
188 ret
= SEC_E_INTERNAL_ERROR
;
191 ret
= SEC_E_UNSUPPORTED_FUNCTION
;
196 static SECURITY_STATUS SEC_ENTRY
schan_QueryCredentialsAttributesA(
197 PCredHandle phCredential
, ULONG ulAttribute
, PVOID pBuffer
)
201 TRACE("(%p, %d, %p)\n", phCredential
, ulAttribute
, pBuffer
);
205 case SECPKG_CRED_ATTR_NAMES
:
206 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
207 ret
= SEC_E_UNSUPPORTED_FUNCTION
;
210 ret
= schan_QueryCredentialsAttributes(phCredential
, ulAttribute
,
216 static SECURITY_STATUS SEC_ENTRY
schan_QueryCredentialsAttributesW(
217 PCredHandle phCredential
, ULONG ulAttribute
, PVOID pBuffer
)
221 TRACE("(%p, %d, %p)\n", phCredential
, ulAttribute
, pBuffer
);
225 case SECPKG_CRED_ATTR_NAMES
:
226 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
227 ret
= SEC_E_UNSUPPORTED_FUNCTION
;
230 ret
= schan_QueryCredentialsAttributes(phCredential
, ulAttribute
,
236 static SECURITY_STATUS
schan_CheckCreds(const SCHANNEL_CRED
*schanCred
)
241 TRACE("dwVersion = %d\n", schanCred
->dwVersion
);
242 TRACE("cCreds = %d\n", schanCred
->cCreds
);
243 TRACE("hRootStore = %p\n", schanCred
->hRootStore
);
244 TRACE("cMappers = %d\n", schanCred
->cMappers
);
245 TRACE("cSupportedAlgs = %d:\n", schanCred
->cSupportedAlgs
);
246 for (i
= 0; i
< schanCred
->cSupportedAlgs
; i
++)
247 TRACE("%08x\n", schanCred
->palgSupportedAlgs
[i
]);
248 TRACE("grbitEnabledProtocols = %08x\n", schanCred
->grbitEnabledProtocols
);
249 TRACE("dwMinimumCipherStrength = %d\n", schanCred
->dwMinimumCipherStrength
);
250 TRACE("dwMaximumCipherStrength = %d\n", schanCred
->dwMaximumCipherStrength
);
251 TRACE("dwSessionLifespan = %d\n", schanCred
->dwSessionLifespan
);
252 TRACE("dwFlags = %08x\n", schanCred
->dwFlags
);
253 TRACE("dwCredFormat = %d\n", schanCred
->dwCredFormat
);
255 switch (schanCred
->dwVersion
)
258 case SCHANNEL_CRED_VERSION
:
261 return SEC_E_INTERNAL_ERROR
;
264 if (schanCred
->cCreds
== 0)
265 st
= SEC_E_NO_CREDENTIALS
;
266 else if (schanCred
->cCreds
> 1)
267 st
= SEC_E_UNKNOWN_CREDENTIALS
;
274 ret
= CryptAcquireCertificatePrivateKey(schanCred
->paCred
[0],
275 0, /* FIXME: what flags to use? */ NULL
,
276 &csp
, &keySpec
, &freeCSP
);
281 CryptReleaseContext(csp
, 0);
284 st
= SEC_E_UNKNOWN_CREDENTIALS
;
289 static SECURITY_STATUS
schan_AcquireClientCredentials(const SCHANNEL_CRED
*schanCred
,
290 PCredHandle phCredential
, PTimeStamp ptsExpiry
)
292 struct schan_credentials
*creds
;
293 SECURITY_STATUS st
= SEC_E_OK
;
295 TRACE("schanCred %p, phCredential %p, ptsExpiry %p\n", schanCred
, phCredential
, ptsExpiry
);
299 st
= schan_CheckCreds(schanCred
);
300 if (st
== SEC_E_NO_CREDENTIALS
)
304 /* For now, the only thing I'm interested in is the direction of the
305 * connection, so just store it.
311 creds
= HeapAlloc(GetProcessHeap(), 0, sizeof(*creds
));
312 if (!creds
) return SEC_E_INSUFFICIENT_MEMORY
;
314 handle
= schan_alloc_handle(creds
, SCHAN_HANDLE_CRED
);
315 if (handle
== SCHAN_INVALID_HANDLE
) goto fail
;
317 creds
->credential_use
= SECPKG_CRED_OUTBOUND
;
318 if (!schan_imp_allocate_certificate_credentials(&creds
->credentials
))
320 schan_free_handle(handle
, SCHAN_HANDLE_CRED
);
324 phCredential
->dwLower
= handle
;
325 phCredential
->dwUpper
= 0;
327 /* Outbound credentials have no expiry */
330 ptsExpiry
->LowPart
= 0;
331 ptsExpiry
->HighPart
= 0;
337 HeapFree(GetProcessHeap(), 0, creds
);
338 return SEC_E_INTERNAL_ERROR
;
341 static SECURITY_STATUS
schan_AcquireServerCredentials(const SCHANNEL_CRED
*schanCred
,
342 PCredHandle phCredential
, PTimeStamp ptsExpiry
)
346 TRACE("schanCred %p, phCredential %p, ptsExpiry %p\n", schanCred
, phCredential
, ptsExpiry
);
348 if (!schanCred
) return SEC_E_NO_CREDENTIALS
;
350 st
= schan_CheckCreds(schanCred
);
354 struct schan_credentials
*creds
;
356 creds
= HeapAlloc(GetProcessHeap(), 0, sizeof(*creds
));
357 if (!creds
) return SEC_E_INSUFFICIENT_MEMORY
;
358 creds
->credential_use
= SECPKG_CRED_INBOUND
;
360 handle
= schan_alloc_handle(creds
, SCHAN_HANDLE_CRED
);
361 if (handle
== SCHAN_INVALID_HANDLE
)
363 HeapFree(GetProcessHeap(), 0, creds
);
364 return SEC_E_INTERNAL_ERROR
;
367 phCredential
->dwLower
= handle
;
368 phCredential
->dwUpper
= 0;
370 /* FIXME: get expiry from cert */
375 static SECURITY_STATUS
schan_AcquireCredentialsHandle(ULONG fCredentialUse
,
376 const SCHANNEL_CRED
*schanCred
, PCredHandle phCredential
, PTimeStamp ptsExpiry
)
380 if (fCredentialUse
== SECPKG_CRED_OUTBOUND
)
381 ret
= schan_AcquireClientCredentials(schanCred
, phCredential
,
384 ret
= schan_AcquireServerCredentials(schanCred
, phCredential
,
389 static SECURITY_STATUS SEC_ENTRY
schan_AcquireCredentialsHandleA(
390 SEC_CHAR
*pszPrincipal
, SEC_CHAR
*pszPackage
, ULONG fCredentialUse
,
391 PLUID pLogonID
, PVOID pAuthData
, SEC_GET_KEY_FN pGetKeyFn
,
392 PVOID pGetKeyArgument
, PCredHandle phCredential
, PTimeStamp ptsExpiry
)
394 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
395 debugstr_a(pszPrincipal
), debugstr_a(pszPackage
), fCredentialUse
,
396 pLogonID
, pAuthData
, pGetKeyFn
, pGetKeyArgument
, phCredential
, ptsExpiry
);
397 return schan_AcquireCredentialsHandle(fCredentialUse
,
398 pAuthData
, phCredential
, ptsExpiry
);
401 static SECURITY_STATUS SEC_ENTRY
schan_AcquireCredentialsHandleW(
402 SEC_WCHAR
*pszPrincipal
, SEC_WCHAR
*pszPackage
, ULONG fCredentialUse
,
403 PLUID pLogonID
, PVOID pAuthData
, SEC_GET_KEY_FN pGetKeyFn
,
404 PVOID pGetKeyArgument
, PCredHandle phCredential
, PTimeStamp ptsExpiry
)
406 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
407 debugstr_w(pszPrincipal
), debugstr_w(pszPackage
), fCredentialUse
,
408 pLogonID
, pAuthData
, pGetKeyFn
, pGetKeyArgument
, phCredential
, ptsExpiry
);
409 return schan_AcquireCredentialsHandle(fCredentialUse
,
410 pAuthData
, phCredential
, ptsExpiry
);
413 static SECURITY_STATUS SEC_ENTRY
schan_FreeCredentialsHandle(
414 PCredHandle phCredential
)
416 struct schan_credentials
*creds
;
418 TRACE("phCredential %p\n", phCredential
);
420 if (!phCredential
) return SEC_E_INVALID_HANDLE
;
422 creds
= schan_free_handle(phCredential
->dwLower
, SCHAN_HANDLE_CRED
);
423 if (!creds
) return SEC_E_INVALID_HANDLE
;
425 if (creds
->credential_use
== SECPKG_CRED_OUTBOUND
)
426 schan_imp_free_certificate_credentials(creds
->credentials
);
427 HeapFree(GetProcessHeap(), 0, creds
);
432 static void init_schan_buffers(struct schan_buffers
*s
, const PSecBufferDesc desc
,
433 int (*get_next_buffer
)(const struct schan_transport
*, struct schan_buffers
*))
438 s
->current_buffer_idx
= -1;
439 s
->allow_buffer_resize
= FALSE
;
440 s
->get_next_buffer
= get_next_buffer
;
443 static int schan_find_sec_buffer_idx(const SecBufferDesc
*desc
, unsigned int start_idx
, ULONG buffer_type
)
448 for (i
= start_idx
; i
< desc
->cBuffers
; ++i
)
450 buffer
= &desc
->pBuffers
[i
];
451 if (buffer
->BufferType
== buffer_type
) return i
;
457 static void schan_resize_current_buffer(const struct schan_buffers
*s
, SIZE_T min_size
)
459 SecBuffer
*b
= &s
->desc
->pBuffers
[s
->current_buffer_idx
];
460 SIZE_T new_size
= b
->cbBuffer
? b
->cbBuffer
* 2 : 128;
463 if (b
->cbBuffer
>= min_size
|| !s
->allow_buffer_resize
|| min_size
> UINT_MAX
/ 2) return;
465 while (new_size
< min_size
) new_size
*= 2;
468 new_data
= HeapReAlloc(GetProcessHeap(), 0, b
->pvBuffer
, new_size
);
470 new_data
= HeapAlloc(GetProcessHeap(), 0, new_size
);
474 TRACE("Failed to resize %p from %d to %ld\n", b
->pvBuffer
, b
->cbBuffer
, new_size
);
478 b
->cbBuffer
= new_size
;
479 b
->pvBuffer
= new_data
;
482 char *schan_get_buffer(const struct schan_transport
*t
, struct schan_buffers
*s
, SIZE_T
*count
)
493 if (s
->current_buffer_idx
== -1)
496 int buffer_idx
= s
->get_next_buffer(t
, s
);
497 if (buffer_idx
== -1)
499 TRACE("No next buffer\n");
502 s
->current_buffer_idx
= buffer_idx
;
505 buffer
= &s
->desc
->pBuffers
[s
->current_buffer_idx
];
506 TRACE("Using buffer %d: cbBuffer %d, BufferType %#x, pvBuffer %p\n", s
->current_buffer_idx
, buffer
->cbBuffer
, buffer
->BufferType
, buffer
->pvBuffer
);
508 schan_resize_current_buffer(s
, s
->offset
+ *count
);
509 max_count
= buffer
->cbBuffer
- s
->offset
;
514 s
->allow_buffer_resize
= FALSE
;
515 buffer_idx
= s
->get_next_buffer(t
, s
);
516 if (buffer_idx
== -1)
518 TRACE("No next buffer\n");
521 s
->current_buffer_idx
= buffer_idx
;
523 return schan_get_buffer(t
, s
, count
);
526 if (*count
> max_count
) *count
= max_count
;
527 return (char *)buffer
->pvBuffer
+ s
->offset
;
531 * Read data from the transport input buffer.
533 * t - The session transport object.
534 * buff - The buffer into which to store the read data. Must be at least
535 * *buff_len bytes in length.
536 * buff_len - On input, *buff_len is the desired length to read. On successful
537 * return, *buff_len is the number of bytes actually read.
540 * 0 on success, in which case:
541 * *buff_len == 0 indicates end of file.
542 * *buff_len > 0 indicates that some data was read. May be less than
543 * what was requested, in which case the caller should call again if/
544 * when they want more.
545 * EAGAIN when no data could be read without blocking
546 * another errno-style error value on failure
549 int schan_pull(struct schan_transport
*t
, void *buff
, size_t *buff_len
)
552 SIZE_T local_len
= *buff_len
;
554 TRACE("Pull %lu bytes\n", local_len
);
558 b
= schan_get_buffer(t
, &t
->in
, &local_len
);
562 if (t
->in
.limit
!= 0 && t
->in
.offset
+ local_len
>= t
->in
.limit
)
564 local_len
= t
->in
.limit
- t
->in
.offset
;
569 memcpy(buff
, b
, local_len
);
570 t
->in
.offset
+= local_len
;
572 TRACE("Read %lu bytes\n", local_len
);
574 *buff_len
= local_len
;
579 * Write data to the transport output buffer.
581 * t - The session transport object.
582 * buff - The buffer of data to write. Must be at least *buff_len bytes in length.
583 * buff_len - On input, *buff_len is the desired length to write. On successful
584 * return, *buff_len is the number of bytes actually written.
588 * *buff_len will be > 0 indicating how much data was written. May be less
589 * than what was requested, in which case the caller should call again
590 if/when they want to write more.
591 * EAGAIN when no data could be written without blocking
592 * another errno-style error value on failure
595 int schan_push(struct schan_transport
*t
, const void *buff
, size_t *buff_len
)
598 SIZE_T local_len
= *buff_len
;
600 TRACE("Push %lu bytes\n", local_len
);
604 b
= schan_get_buffer(t
, &t
->out
, &local_len
);
608 memcpy(b
, buff
, local_len
);
609 t
->out
.offset
+= local_len
;
611 TRACE("Wrote %lu bytes\n", local_len
);
613 *buff_len
= local_len
;
617 schan_imp_session
schan_session_for_transport(struct schan_transport
* t
)
619 return t
->ctx
->session
;
622 static int schan_init_sec_ctx_get_next_buffer(const struct schan_transport
*t
, struct schan_buffers
*s
)
624 if (s
->current_buffer_idx
== -1)
626 int idx
= schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_TOKEN
);
627 if (t
->ctx
->req_ctx_attr
& ISC_REQ_ALLOCATE_MEMORY
)
631 idx
= schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_EMPTY
);
632 if (idx
!= -1) s
->desc
->pBuffers
[idx
].BufferType
= SECBUFFER_TOKEN
;
634 if (idx
!= -1 && !s
->desc
->pBuffers
[idx
].pvBuffer
)
636 s
->desc
->pBuffers
[idx
].cbBuffer
= 0;
637 s
->allow_buffer_resize
= TRUE
;
646 static void dump_buffer_desc(SecBufferDesc
*desc
)
651 TRACE("Buffer desc %p:\n", desc
);
652 for (i
= 0; i
< desc
->cBuffers
; ++i
)
654 SecBuffer
*b
= &desc
->pBuffers
[i
];
655 TRACE("\tbuffer %u: cbBuffer %d, BufferType %#x pvBuffer %p\n", i
, b
->cbBuffer
, b
->BufferType
, b
->pvBuffer
);
659 /***********************************************************************
660 * InitializeSecurityContextW
662 static SECURITY_STATUS SEC_ENTRY
schan_InitializeSecurityContextW(
663 PCredHandle phCredential
, PCtxtHandle phContext
, SEC_WCHAR
*pszTargetName
,
664 ULONG fContextReq
, ULONG Reserved1
, ULONG TargetDataRep
,
665 PSecBufferDesc pInput
, ULONG Reserved2
, PCtxtHandle phNewContext
,
666 PSecBufferDesc pOutput
, ULONG
*pfContextAttr
, PTimeStamp ptsExpiry
)
668 struct schan_context
*ctx
;
669 struct schan_buffers
*out_buffers
;
670 struct schan_credentials
*cred
;
671 struct schan_transport transport
;
674 TRACE("%p %p %s 0x%08x %d %d %p %d %p %p %p %p\n", phCredential
, phContext
,
675 debugstr_w(pszTargetName
), fContextReq
, Reserved1
, TargetDataRep
, pInput
,
676 Reserved1
, phNewContext
, pOutput
, pfContextAttr
, ptsExpiry
);
678 dump_buffer_desc(pInput
);
679 dump_buffer_desc(pOutput
);
685 if (!phCredential
) return SEC_E_INVALID_HANDLE
;
687 cred
= schan_get_object(phCredential
->dwLower
, SCHAN_HANDLE_CRED
);
688 if (!cred
) return SEC_E_INVALID_HANDLE
;
690 if (!(cred
->credential_use
& SECPKG_CRED_OUTBOUND
))
692 WARN("Invalid credential use %#x\n", cred
->credential_use
);
693 return SEC_E_INVALID_HANDLE
;
696 ctx
= HeapAlloc(GetProcessHeap(), 0, sizeof(*ctx
));
697 if (!ctx
) return SEC_E_INSUFFICIENT_MEMORY
;
699 handle
= schan_alloc_handle(ctx
, SCHAN_HANDLE_CTX
);
700 if (handle
== SCHAN_INVALID_HANDLE
)
702 HeapFree(GetProcessHeap(), 0, ctx
);
703 return SEC_E_INTERNAL_ERROR
;
706 if (!schan_imp_create_session(&ctx
->session
, FALSE
, cred
->credentials
))
708 schan_free_handle(handle
, SCHAN_HANDLE_CTX
);
709 HeapFree(GetProcessHeap(), 0, ctx
);
710 return SEC_E_INTERNAL_ERROR
;
713 phNewContext
->dwLower
= handle
;
714 phNewContext
->dwUpper
= 0;
718 ctx
= schan_get_object(phContext
->dwLower
, SCHAN_HANDLE_CTX
);
721 ctx
->req_ctx_attr
= fContextReq
;
724 init_schan_buffers(&transport
.in
, pInput
, schan_init_sec_ctx_get_next_buffer
);
725 init_schan_buffers(&transport
.out
, pOutput
, schan_init_sec_ctx_get_next_buffer
);
726 schan_imp_set_session_transport(ctx
->session
, &transport
);
728 /* Perform the TLS handshake */
729 ret
= schan_imp_handshake(ctx
->session
);
731 if(transport
.in
.offset
&& transport
.in
.offset
!= pInput
->pBuffers
[0].cbBuffer
) {
732 if(pInput
->cBuffers
<2 || pInput
->pBuffers
[1].BufferType
!=SECBUFFER_EMPTY
)
733 return SEC_E_INVALID_TOKEN
;
735 pInput
->pBuffers
[1].BufferType
= SECBUFFER_EXTRA
;
736 pInput
->pBuffers
[1].cbBuffer
= pInput
->pBuffers
[0].cbBuffer
-transport
.in
.offset
;
739 out_buffers
= &transport
.out
;
740 if (out_buffers
->current_buffer_idx
!= -1)
742 SecBuffer
*buffer
= &out_buffers
->desc
->pBuffers
[out_buffers
->current_buffer_idx
];
743 buffer
->cbBuffer
= out_buffers
->offset
;
747 if (ctx
->req_ctx_attr
& ISC_REQ_ALLOCATE_MEMORY
)
748 *pfContextAttr
|= ISC_RET_ALLOCATED_MEMORY
;
753 /***********************************************************************
754 * InitializeSecurityContextA
756 static SECURITY_STATUS SEC_ENTRY
schan_InitializeSecurityContextA(
757 PCredHandle phCredential
, PCtxtHandle phContext
, SEC_CHAR
*pszTargetName
,
758 ULONG fContextReq
, ULONG Reserved1
, ULONG TargetDataRep
,
759 PSecBufferDesc pInput
, ULONG Reserved2
, PCtxtHandle phNewContext
,
760 PSecBufferDesc pOutput
, ULONG
*pfContextAttr
, PTimeStamp ptsExpiry
)
763 SEC_WCHAR
*target_name
= NULL
;
765 TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential
, phContext
,
766 debugstr_a(pszTargetName
), fContextReq
, Reserved1
, TargetDataRep
, pInput
,
767 Reserved1
, phNewContext
, pOutput
, pfContextAttr
, ptsExpiry
);
771 INT len
= MultiByteToWideChar(CP_ACP
, 0, pszTargetName
, -1, NULL
, 0);
772 target_name
= HeapAlloc(GetProcessHeap(), 0, len
* sizeof(*target_name
));
773 MultiByteToWideChar(CP_ACP
, 0, pszTargetName
, -1, target_name
, len
);
776 ret
= schan_InitializeSecurityContextW(phCredential
, phContext
, target_name
,
777 fContextReq
, Reserved1
, TargetDataRep
, pInput
, Reserved2
,
778 phNewContext
, pOutput
, pfContextAttr
, ptsExpiry
);
780 HeapFree(GetProcessHeap(), 0, target_name
);
785 static SECURITY_STATUS SEC_ENTRY
schan_QueryContextAttributesW(
786 PCtxtHandle context_handle
, ULONG attribute
, PVOID buffer
)
788 struct schan_context
*ctx
;
790 TRACE("context_handle %p, attribute %#x, buffer %p\n",
791 context_handle
, attribute
, buffer
);
793 if (!context_handle
) return SEC_E_INVALID_HANDLE
;
794 ctx
= schan_get_object(context_handle
->dwLower
, SCHAN_HANDLE_CTX
);
798 case SECPKG_ATTR_STREAM_SIZES
:
800 SecPkgContext_ConnectionInfo info
;
801 SECURITY_STATUS status
= schan_imp_get_connection_info(ctx
->session
, &info
);
802 if (status
== SEC_E_OK
)
804 SecPkgContext_StreamSizes
*stream_sizes
= buffer
;
805 SIZE_T mac_size
= info
.dwHashStrength
;
806 unsigned int block_size
= schan_imp_get_session_cipher_block_size(ctx
->session
);
807 unsigned int message_size
= schan_imp_get_max_message_size(ctx
->session
);
809 TRACE("Using %lu mac bytes, message size %u, block size %u\n",
810 mac_size
, message_size
, block_size
);
812 /* These are defined by the TLS RFC */
813 stream_sizes
->cbHeader
= 5;
814 stream_sizes
->cbTrailer
= mac_size
+ 256; /* Max 255 bytes padding + 1 for padding size */
815 stream_sizes
->cbMaximumMessage
= message_size
;
816 stream_sizes
->cbBuffers
= 4;
817 stream_sizes
->cbBlockSize
= block_size
;
822 case SECPKG_ATTR_REMOTE_CERT_CONTEXT
:
824 PCCERT_CONTEXT
*cert
= buffer
;
825 return schan_imp_get_session_peer_certificate(ctx
->session
, cert
);
827 case SECPKG_ATTR_CONNECTION_INFO
:
829 SecPkgContext_ConnectionInfo
*info
= buffer
;
830 return schan_imp_get_connection_info(ctx
->session
, info
);
834 FIXME("Unhandled attribute %#x\n", attribute
);
835 return SEC_E_UNSUPPORTED_FUNCTION
;
839 static SECURITY_STATUS SEC_ENTRY
schan_QueryContextAttributesA(
840 PCtxtHandle context_handle
, ULONG attribute
, PVOID buffer
)
842 TRACE("context_handle %p, attribute %#x, buffer %p\n",
843 context_handle
, attribute
, buffer
);
847 case SECPKG_ATTR_STREAM_SIZES
:
848 return schan_QueryContextAttributesW(context_handle
, attribute
, buffer
);
849 case SECPKG_ATTR_REMOTE_CERT_CONTEXT
:
850 return schan_QueryContextAttributesW(context_handle
, attribute
, buffer
);
851 case SECPKG_ATTR_CONNECTION_INFO
:
852 return schan_QueryContextAttributesW(context_handle
, attribute
, buffer
);
855 FIXME("Unhandled attribute %#x\n", attribute
);
856 return SEC_E_UNSUPPORTED_FUNCTION
;
860 static int schan_encrypt_message_get_next_buffer(const struct schan_transport
*t
, struct schan_buffers
*s
)
864 if (s
->current_buffer_idx
== -1)
865 return schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_STREAM_HEADER
);
867 b
= &s
->desc
->pBuffers
[s
->current_buffer_idx
];
869 if (b
->BufferType
== SECBUFFER_STREAM_HEADER
)
870 return schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_DATA
);
872 if (b
->BufferType
== SECBUFFER_DATA
)
873 return schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_STREAM_TRAILER
);
878 static int schan_encrypt_message_get_next_buffer_token(const struct schan_transport
*t
, struct schan_buffers
*s
)
882 if (s
->current_buffer_idx
== -1)
883 return schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_TOKEN
);
885 b
= &s
->desc
->pBuffers
[s
->current_buffer_idx
];
887 if (b
->BufferType
== SECBUFFER_TOKEN
)
889 int idx
= schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_TOKEN
);
890 if (idx
!= s
->current_buffer_idx
) return -1;
891 return schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_DATA
);
894 if (b
->BufferType
== SECBUFFER_DATA
)
896 int idx
= schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_TOKEN
);
898 idx
= schan_find_sec_buffer_idx(s
->desc
, idx
+ 1, SECBUFFER_TOKEN
);
905 static SECURITY_STATUS SEC_ENTRY
schan_EncryptMessage(PCtxtHandle context_handle
,
906 ULONG quality
, PSecBufferDesc message
, ULONG message_seq_no
)
908 struct schan_transport transport
;
909 struct schan_context
*ctx
;
910 struct schan_buffers
*b
;
911 SECURITY_STATUS status
;
918 TRACE("context_handle %p, quality %d, message %p, message_seq_no %d\n",
919 context_handle
, quality
, message
, message_seq_no
);
921 if (!context_handle
) return SEC_E_INVALID_HANDLE
;
922 ctx
= schan_get_object(context_handle
->dwLower
, SCHAN_HANDLE_CTX
);
924 dump_buffer_desc(message
);
926 idx
= schan_find_sec_buffer_idx(message
, 0, SECBUFFER_DATA
);
929 WARN("No data buffer passed\n");
930 return SEC_E_INTERNAL_ERROR
;
932 buffer
= &message
->pBuffers
[idx
];
934 data_size
= buffer
->cbBuffer
;
935 data
= HeapAlloc(GetProcessHeap(), 0, data_size
);
936 memcpy(data
, buffer
->pvBuffer
, data_size
);
939 init_schan_buffers(&transport
.in
, NULL
, NULL
);
940 if (schan_find_sec_buffer_idx(message
, 0, SECBUFFER_STREAM_HEADER
) != -1)
941 init_schan_buffers(&transport
.out
, message
, schan_encrypt_message_get_next_buffer
);
943 init_schan_buffers(&transport
.out
, message
, schan_encrypt_message_get_next_buffer_token
);
944 schan_imp_set_session_transport(ctx
->session
, &transport
);
947 status
= schan_imp_send(ctx
->session
, data
, &length
);
949 TRACE("Sent %ld bytes.\n", length
);
951 if (length
!= data_size
)
952 status
= SEC_E_INTERNAL_ERROR
;
955 b
->desc
->pBuffers
[b
->current_buffer_idx
].cbBuffer
= b
->offset
;
956 HeapFree(GetProcessHeap(), 0, data
);
958 TRACE("Returning %#x.\n", status
);
963 static int schan_decrypt_message_get_next_buffer(const struct schan_transport
*t
, struct schan_buffers
*s
)
965 if (s
->current_buffer_idx
== -1)
966 return schan_find_sec_buffer_idx(s
->desc
, 0, SECBUFFER_DATA
);
971 static int schan_validate_decrypt_buffer_desc(PSecBufferDesc message
)
974 unsigned int empty_count
= 0;
977 if (message
->cBuffers
< 4)
979 WARN("Less than four buffers passed\n");
983 for (i
= 0; i
< message
->cBuffers
; ++i
)
985 SecBuffer
*b
= &message
->pBuffers
[i
];
986 if (b
->BufferType
== SECBUFFER_DATA
)
990 WARN("More than one data buffer passed\n");
995 else if (b
->BufferType
== SECBUFFER_EMPTY
)
1001 WARN("No data buffer passed\n");
1005 if (empty_count
< 3)
1007 WARN("Less than three empty buffers passed\n");
1014 static void schan_decrypt_fill_buffer(PSecBufferDesc message
, ULONG buffer_type
, void *data
, ULONG size
)
1019 idx
= schan_find_sec_buffer_idx(message
, 0, SECBUFFER_EMPTY
);
1020 buffer
= &message
->pBuffers
[idx
];
1022 buffer
->BufferType
= buffer_type
;
1023 buffer
->pvBuffer
= data
;
1024 buffer
->cbBuffer
= size
;
1027 static SECURITY_STATUS SEC_ENTRY
schan_DecryptMessage(PCtxtHandle context_handle
,
1028 PSecBufferDesc message
, ULONG message_seq_no
, PULONG quality
)
1030 struct schan_transport transport
;
1031 struct schan_context
*ctx
;
1035 unsigned expected_size
;
1036 SSIZE_T received
= 0;
1038 unsigned char *buf_ptr
;
1040 TRACE("context_handle %p, message %p, message_seq_no %d, quality %p\n",
1041 context_handle
, message
, message_seq_no
, quality
);
1043 if (!context_handle
) return SEC_E_INVALID_HANDLE
;
1044 ctx
= schan_get_object(context_handle
->dwLower
, SCHAN_HANDLE_CTX
);
1046 dump_buffer_desc(message
);
1048 idx
= schan_validate_decrypt_buffer_desc(message
);
1050 return SEC_E_INVALID_TOKEN
;
1051 buffer
= &message
->pBuffers
[idx
];
1052 buf_ptr
= buffer
->pvBuffer
;
1054 expected_size
= 5 + ((buf_ptr
[3] << 8) | buf_ptr
[4]);
1055 if(buffer
->cbBuffer
< expected_size
)
1057 TRACE("Expected %u bytes, but buffer only contains %u bytes\n", expected_size
, buffer
->cbBuffer
);
1058 buffer
->BufferType
= SECBUFFER_MISSING
;
1059 buffer
->cbBuffer
= expected_size
- buffer
->cbBuffer
;
1061 /* This is a bit weird, but windows does it too */
1062 idx
= schan_find_sec_buffer_idx(message
, 0, SECBUFFER_EMPTY
);
1063 buffer
= &message
->pBuffers
[idx
];
1064 buffer
->BufferType
= SECBUFFER_MISSING
;
1065 buffer
->cbBuffer
= expected_size
- buffer
->cbBuffer
;
1067 TRACE("Returning SEC_E_INCOMPLETE_MESSAGE\n");
1068 return SEC_E_INCOMPLETE_MESSAGE
;
1071 data_size
= buffer
->cbBuffer
;
1072 data
= HeapAlloc(GetProcessHeap(), 0, data_size
);
1074 transport
.ctx
= ctx
;
1075 init_schan_buffers(&transport
.in
, message
, schan_decrypt_message_get_next_buffer
);
1076 transport
.in
.limit
= expected_size
;
1077 init_schan_buffers(&transport
.out
, NULL
, NULL
);
1078 schan_imp_set_session_transport(ctx
->session
, &transport
);
1080 while (received
< data_size
)
1082 SIZE_T length
= data_size
- received
;
1083 SECURITY_STATUS status
= schan_imp_recv(ctx
->session
, data
+ received
, &length
);
1084 if (status
== SEC_I_CONTINUE_NEEDED
)
1088 HeapFree(GetProcessHeap(), 0, data
);
1089 TRACE("Returning SEC_E_INCOMPLETE_MESSAGE\n");
1090 return SEC_E_INCOMPLETE_MESSAGE
;
1094 else if (status
!= SEC_E_OK
)
1096 HeapFree(GetProcessHeap(), 0, data
);
1097 ERR("Returning %d\n", status
);
1106 TRACE("Received %ld bytes\n", received
);
1108 memcpy(buf_ptr
+ 5, data
, received
);
1109 HeapFree(GetProcessHeap(), 0, data
);
1111 schan_decrypt_fill_buffer(message
, SECBUFFER_DATA
,
1112 buf_ptr
+ 5, received
);
1114 schan_decrypt_fill_buffer(message
, SECBUFFER_STREAM_TRAILER
,
1115 buf_ptr
+ 5 + received
, buffer
->cbBuffer
- 5 - received
);
1117 if(buffer
->cbBuffer
> expected_size
)
1118 schan_decrypt_fill_buffer(message
, SECBUFFER_EXTRA
,
1119 buf_ptr
+ expected_size
, buffer
->cbBuffer
- expected_size
);
1121 buffer
->BufferType
= SECBUFFER_STREAM_HEADER
;
1122 buffer
->cbBuffer
= 5;
1127 static SECURITY_STATUS SEC_ENTRY
schan_DeleteSecurityContext(PCtxtHandle context_handle
)
1129 struct schan_context
*ctx
;
1131 TRACE("context_handle %p\n", context_handle
);
1133 if (!context_handle
) return SEC_E_INVALID_HANDLE
;
1135 ctx
= schan_free_handle(context_handle
->dwLower
, SCHAN_HANDLE_CTX
);
1136 if (!ctx
) return SEC_E_INVALID_HANDLE
;
1138 schan_imp_dispose_session(ctx
->session
);
1139 HeapFree(GetProcessHeap(), 0, ctx
);
1144 static const SecurityFunctionTableA schanTableA
= {
1146 NULL
, /* EnumerateSecurityPackagesA */
1147 schan_QueryCredentialsAttributesA
,
1148 schan_AcquireCredentialsHandleA
,
1149 schan_FreeCredentialsHandle
,
1150 NULL
, /* Reserved2 */
1151 schan_InitializeSecurityContextA
,
1152 NULL
, /* AcceptSecurityContext */
1153 NULL
, /* CompleteAuthToken */
1154 schan_DeleteSecurityContext
,
1155 NULL
, /* ApplyControlToken */
1156 schan_QueryContextAttributesA
,
1157 NULL
, /* ImpersonateSecurityContext */
1158 NULL
, /* RevertSecurityContext */
1159 NULL
, /* MakeSignature */
1160 NULL
, /* VerifySignature */
1162 NULL
, /* QuerySecurityPackageInfoA */
1163 NULL
, /* Reserved3 */
1164 NULL
, /* Reserved4 */
1165 NULL
, /* ExportSecurityContext */
1166 NULL
, /* ImportSecurityContextA */
1167 NULL
, /* AddCredentialsA */
1168 NULL
, /* Reserved8 */
1169 NULL
, /* QuerySecurityContextToken */
1170 schan_EncryptMessage
,
1171 schan_DecryptMessage
,
1172 NULL
, /* SetContextAttributesA */
1175 static const SecurityFunctionTableW schanTableW
= {
1177 NULL
, /* EnumerateSecurityPackagesW */
1178 schan_QueryCredentialsAttributesW
,
1179 schan_AcquireCredentialsHandleW
,
1180 schan_FreeCredentialsHandle
,
1181 NULL
, /* Reserved2 */
1182 schan_InitializeSecurityContextW
,
1183 NULL
, /* AcceptSecurityContext */
1184 NULL
, /* CompleteAuthToken */
1185 schan_DeleteSecurityContext
,
1186 NULL
, /* ApplyControlToken */
1187 schan_QueryContextAttributesW
,
1188 NULL
, /* ImpersonateSecurityContext */
1189 NULL
, /* RevertSecurityContext */
1190 NULL
, /* MakeSignature */
1191 NULL
, /* VerifySignature */
1193 NULL
, /* QuerySecurityPackageInfoW */
1194 NULL
, /* Reserved3 */
1195 NULL
, /* Reserved4 */
1196 NULL
, /* ExportSecurityContext */
1197 NULL
, /* ImportSecurityContextW */
1198 NULL
, /* AddCredentialsW */
1199 NULL
, /* Reserved8 */
1200 NULL
, /* QuerySecurityContextToken */
1201 schan_EncryptMessage
,
1202 schan_DecryptMessage
,
1203 NULL
, /* SetContextAttributesW */
1206 static const WCHAR schannelComment
[] = { 'S','c','h','a','n','n','e','l',' ',
1207 'S','e','c','u','r','i','t','y',' ','P','a','c','k','a','g','e',0 };
1208 static const WCHAR schannelDllName
[] = { 's','c','h','a','n','n','e','l','.','d','l','l',0 };
1210 void SECUR32_initSchannelSP(void)
1212 /* This is what Windows reports. This shouldn't break any applications
1213 * even though the functions are missing, because the wrapper will
1214 * return SEC_E_UNSUPPORTED_FUNCTION if our function is NULL.
1216 static const LONG caps
=
1217 SECPKG_FLAG_INTEGRITY
|
1218 SECPKG_FLAG_PRIVACY
|
1219 SECPKG_FLAG_CONNECTION
|
1220 SECPKG_FLAG_MULTI_REQUIRED
|
1221 SECPKG_FLAG_EXTENDED_ERROR
|
1222 SECPKG_FLAG_IMPERSONATION
|
1223 SECPKG_FLAG_ACCEPT_WIN32_NAME
|
1225 static const short version
= 1;
1226 static const LONG maxToken
= 16384;
1227 SEC_WCHAR
*uniSPName
= (SEC_WCHAR
*)UNISP_NAME_W
,
1228 *schannel
= (SEC_WCHAR
*)SCHANNEL_NAME_W
;
1229 const SecPkgInfoW info
[] = {
1230 { caps
, version
, UNISP_RPC_ID
, maxToken
, uniSPName
, uniSPName
},
1231 { caps
, version
, UNISP_RPC_ID
, maxToken
, schannel
,
1232 (SEC_WCHAR
*)schannelComment
},
1234 SecureProvider
*provider
;
1236 if (!schan_imp_init())
1239 schan_handle_table
= HeapAlloc(GetProcessHeap(), 0, 64 * sizeof(*schan_handle_table
));
1240 if (!schan_handle_table
)
1242 ERR("Failed to allocate schannel handle table.\n");
1245 schan_handle_table_size
= 64;
1247 provider
= SECUR32_addProvider(&schanTableA
, &schanTableW
, schannelDllName
);
1250 ERR("Failed to add schannel provider.\n");
1254 SECUR32_addPackages(provider
, sizeof(info
) / sizeof(info
[0]), NULL
, info
);
1259 HeapFree(GetProcessHeap(), 0, schan_handle_table
);
1260 schan_handle_table
= NULL
;
1265 void SECUR32_deinitSchannelSP(void)
1267 SIZE_T i
= schan_handle_count
;
1269 if (!schan_handle_table
) return;
1271 /* deinitialized sessions first because a pointer to the credentials
1272 * may be stored for the session. */
1275 if (schan_handle_table
[i
].type
== SCHAN_HANDLE_CTX
)
1277 struct schan_context
*ctx
= schan_free_handle(i
, SCHAN_HANDLE_CTX
);
1278 schan_imp_dispose_session(ctx
->session
);
1279 HeapFree(GetProcessHeap(), 0, ctx
);
1282 i
= schan_handle_count
;
1285 if (schan_handle_table
[i
].type
!= SCHAN_HANDLE_FREE
)
1287 struct schan_credentials
*cred
;
1288 cred
= schan_free_handle(i
, SCHAN_HANDLE_CRED
);
1289 schan_imp_free_certificate_credentials(cred
->credentials
);
1290 HeapFree(GetProcessHeap(), 0, cred
);
1293 HeapFree(GetProcessHeap(), 0, schan_handle_table
);
1297 #else /* SONAME_LIBGNUTLS || HAVE_SECURITY_SECURITY_H */
1299 void SECUR32_initSchannelSP(void)
1301 ERR("TLS library not found, SSL connections will fail\n");
1304 void SECUR32_deinitSchannelSP(void) {}
1306 #endif /* SONAME_LIBGNUTLS || HAVE_SECURITY_SECURITY_H */