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kerberos: Allocate memory for the output token if requested.

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Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
This commit is contained in:
Dmitry Timoshkov 2024-03-05 10:53:43 +03:00 committed by Alexandre Julliard
parent 2c8d4f5abd
commit 7c7702f91d
1 changed files with 30 additions and 6 deletions
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36
dlls/kerberos/krb5_ap.c
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@ -477,7 +477,7 @@ static NTSTATUS NTAPI kerberos_SpInitLsaModeContext( LSA_SEC_HANDLE credential,
{
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 | ISC_REQ_DELEGATE;
ISC_REQ_IDENTIFY | ISC_REQ_CONNECTION | ISC_REQ_DELEGATE | ISC_REQ_ALLOCATE_MEMORY;
char *target = NULL;
NTSTATUS status;
ULONG exptime;
@ -512,17 +512,41 @@ static NTSTATUS NTAPI kerberos_SpInitLsaModeContext( LSA_SEC_HANDLE credential,
params.input_token_length = input->pBuffers[idx].cbBuffer;
}
if ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
if ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1)
{
free( target );
return SEC_E_INVALID_TOKEN;
}
if (context_req & ISC_REQ_ALLOCATE_MEMORY)
{
output->pBuffers[idx].pvBuffer = RtlAllocateHeap( GetProcessHeap(), 0, KERBEROS_MAX_BUF );
if (!output->pBuffers[idx].pvBuffer)
{
free( target );
return STATUS_NO_MEMORY;
}
output->pBuffers[idx].cbBuffer = KERBEROS_MAX_BUF;
}
params.output_token = output->pBuffers[idx].pvBuffer;
params.output_token_length = &output->pBuffers[idx].cbBuffer;
status = KRB5_CALL( initialize_context, &params );
if (status == SEC_E_OK || status == SEC_I_CONTINUE_NEEDED)
*new_context = create_context_handle( context_handle, new_context_handle );
if (!status)
{
*mapped_context = TRUE;
expiry_to_timestamp( exptime, expiry );
*new_context = create_context_handle( context_handle, new_context_handle );
if (context_attr && (context_req & ISC_REQ_ALLOCATE_MEMORY))
*context_attr |= ISC_RET_ALLOCATED_MEMORY;
if (status == SEC_E_OK)
{
*mapped_context = TRUE;
expiry_to_timestamp( exptime, expiry );
}
}
else
{
if (context_req & ISC_REQ_ALLOCATE_MEMORY)
RtlFreeHeap( GetProcessHeap(), 0, output->pBuffers[idx].pvBuffer );
}
}
/* FIXME: initialize context_data */