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kerberos: Move support for SpAcceptLsaModeContext to the Unix library. 

Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Hans Leidekker 2021-04-20 15:56:50 +02:00 committed by Alexandre Julliard
parent f9292ec8b6
commit e6aa95c08a
3 changed files with 72 additions and 95 deletions
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102
dlls/kerberos/krb5_ap.c
View File

@ -673,23 +673,12 @@ static void unload_gssapi_krb5(void)
libgssapi_krb5_handle = NULL;
}
static inline gss_cred_id_t credhandle_sspi_to_gss( LSA_SEC_HANDLE cred )
{
if (!cred) return GSS_C_NO_CREDENTIAL;
return (gss_cred_id_t)cred;
}
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 inline void ctxthandle_gss_to_sspi( gss_ctx_id_t handle, LSA_SEC_HANDLE *ctxt )
{
*ctxt = (LSA_SEC_HANDLE)handle;
}
static NTSTATUS status_gss_to_sspi( OM_uint32 status )
{
switch (status)
@ -748,33 +737,6 @@ static void trace_gss_status( OM_uint32 major_status, OM_uint32 minor_status )
}
}
static void expirytime_gss_to_sspi( OM_uint32 expirytime, TimeStamp *timestamp )
{
FILETIME filetime;
ULARGE_INTEGER tmp;
GetSystemTimeAsFileTime( &filetime );
FileTimeToLocalFileTime( &filetime, &filetime );
tmp.QuadPart = ((ULONGLONG)filetime.dwLowDateTime | (ULONGLONG)filetime.dwHighDateTime << 32) + expirytime;
timestamp->LowPart = tmp.QuadPart;
timestamp->HighPart = tmp.QuadPart >> 32;
}
static ULONG flags_gss_to_asc_ret( ULONG flags )
{
ULONG ret = 0;
if (flags & GSS_C_DELEG_FLAG) ret |= ASC_RET_DELEGATE;
if (flags & GSS_C_MUTUAL_FLAG) ret |= ASC_RET_MUTUAL_AUTH;
if (flags & GSS_C_REPLAY_FLAG) ret |= ASC_RET_REPLAY_DETECT;
if (flags & GSS_C_SEQUENCE_FLAG) ret |= ASC_RET_SEQUENCE_DETECT;
if (flags & GSS_C_CONF_FLAG) ret |= ASC_RET_CONFIDENTIALITY;
if (flags & GSS_C_INTEG_FLAG) ret |= ASC_RET_INTEGRITY;
if (flags & GSS_C_ANON_FLAG) ret |= ASC_RET_NULL_SESSION;
if (flags & GSS_C_DCE_STYLE) ret |= ASC_RET_USED_DCE_STYLE;
if (flags & GSS_C_IDENTIFY_FLAG) ret |= ASC_RET_IDENTIFY;
return ret;
}
static BOOL is_dce_style_context( gss_ctx_id_t ctxt_handle )
{
OM_uint32 ret, minor_status, flags;
@ -901,70 +863,20 @@ static NTSTATUS NTAPI kerberos_SpInitLsaModeContext( LSA_SEC_HANDLE credential,
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 *ts_expiry, BOOLEAN *mapped_context, SecBuffer *context_data )
SecBufferDesc *output, ULONG *context_attr, TimeStamp *expiry, BOOLEAN *mapped_context, SecBuffer *context_data )
{
#ifdef SONAME_LIBGSSAPI_KRB5
OM_uint32 ret, minor_status, ret_flags = 0, expiry_time;
gss_cred_id_t cred_handle;
gss_ctx_id_t ctxt_handle;
gss_buffer_desc input_token, output_token;
gss_name_t target = GSS_C_NO_NAME;
int idx;
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, ts_expiry,
mapped_context, context_data );
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;
cred_handle = credhandle_sspi_to_gss( credential );
ctxt_handle = ctxthandle_sspi_to_gss( context );
if (!input) input_token.length = 0;
else
{
if ((idx = get_buffer_index( input, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
input_token.length = input->pBuffers[idx].cbBuffer;
input_token.value = input->pBuffers[idx].pvBuffer;
}
if ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
output_token.length = 0;
output_token.value = NULL;
ret = pgss_accept_sec_context( &minor_status, &ctxt_handle, cred_handle, &input_token, GSS_C_NO_CHANNEL_BINDINGS,
&target, NULL, &output_token, &ret_flags, &expiry_time, NULL );
TRACE( "gss_accept_sec_context returned %08x minor status %08x ret_flags %08x\n", ret, minor_status, ret_flags );
if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE || ret == GSS_S_CONTINUE_NEEDED)
{
if (output_token.length > output->pBuffers[idx].cbBuffer) /* FIXME: check if larger buffer exists */
{
TRACE( "buffer too small %lu > %u\n", (SIZE_T)output_token.length, output->pBuffers[idx].cbBuffer );
pgss_release_buffer( &minor_status, &output_token );
pgss_delete_sec_context( &minor_status, &ctxt_handle, GSS_C_NO_BUFFER );
return SEC_E_BUFFER_TOO_SMALL;
}
output->pBuffers[idx].cbBuffer = output_token.length;
memcpy( output->pBuffers[idx].pvBuffer, output_token.value, output_token.length );
pgss_release_buffer( &minor_status, &output_token );
ctxthandle_gss_to_sspi( ctxt_handle, new_context );
if (context_attr) *context_attr = flags_gss_to_asc_ret( ret_flags );
expirytime_gss_to_sspi( expiry_time, ts_expiry );
}
/* we do support user mode SSP/AP functions */
*mapped_context = TRUE;
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_gss_to_sspi( ret );
#else
FIXME( "(%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, ts_expiry,
mapped_context, context_data );
return SEC_E_UNSUPPORTED_FUNCTION;
#endif
return status;
}
static NTSTATUS NTAPI kerberos_SpDeleteContext( LSA_SEC_HANDLE context )

63
dlls/kerberos/unixlib.c
View File

@ -308,6 +308,68 @@ static void expirytime_gss_to_sspi( OM_uint32 expirytime, TimeStamp *timestamp )
timestamp->HighPart = time.QuadPart >> 32;
}
static ULONG flags_gss_to_asc_ret( ULONG flags )
{
ULONG ret = 0;
if (flags & GSS_C_DELEG_FLAG) ret |= ASC_RET_DELEGATE;
if (flags & GSS_C_MUTUAL_FLAG) ret |= ASC_RET_MUTUAL_AUTH;
if (flags & GSS_C_REPLAY_FLAG) ret |= ASC_RET_REPLAY_DETECT;
if (flags & GSS_C_SEQUENCE_FLAG) ret |= ASC_RET_SEQUENCE_DETECT;
if (flags & GSS_C_CONF_FLAG) ret |= ASC_RET_CONFIDENTIALITY;
if (flags & GSS_C_INTEG_FLAG) ret |= ASC_RET_INTEGRITY;
if (flags & GSS_C_ANON_FLAG) ret |= ASC_RET_NULL_SESSION;
if (flags & GSS_C_DCE_STYLE) ret |= ASC_RET_USED_DCE_STYLE;
if (flags & GSS_C_IDENTIFY_FLAG) ret |= ASC_RET_IDENTIFY;
return ret;
}
NTSTATUS CDECL accept_context( LSA_SEC_HANDLE credential, LSA_SEC_HANDLE context, SecBufferDesc *input,
LSA_SEC_HANDLE *new_context, SecBufferDesc *output, ULONG *context_attr,
TimeStamp *expiry )
{
OM_uint32 ret, minor_status, ret_flags = 0, expiry_time;
gss_cred_id_t cred_handle = credhandle_sspi_to_gss( credential );
gss_ctx_id_t ctx_handle = ctxhandle_sspi_to_gss( context );
gss_buffer_desc input_token, output_token;
int idx;
if (!input) input_token.length = 0;
else
{
if ((idx = get_buffer_index( input, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
input_token.length = input->pBuffers[idx].cbBuffer;
input_token.value = input->pBuffers[idx].pvBuffer;
}
if ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
output_token.length = 0;
output_token.value = NULL;
ret = pgss_accept_sec_context( &minor_status, &ctx_handle, cred_handle, &input_token, GSS_C_NO_CHANNEL_BINDINGS,
NULL, NULL, &output_token, &ret_flags, &expiry_time, NULL );
TRACE( "gss_accept_sec_context returned %08x minor status %08x ret_flags %08x\n", ret, minor_status, ret_flags );
if (GSS_ERROR( ret )) trace_gss_status( ret, minor_status );
if (ret == GSS_S_COMPLETE || ret == GSS_S_CONTINUE_NEEDED)
{
if (output_token.length > output->pBuffers[idx].cbBuffer) /* FIXME: check if larger buffer exists */
{
TRACE( "buffer too small %lu > %u\n", (SIZE_T)output_token.length, output->pBuffers[idx].cbBuffer );
pgss_release_buffer( &minor_status, &output_token );
pgss_delete_sec_context( &minor_status, &ctx_handle, GSS_C_NO_BUFFER );
return SEC_E_BUFFER_TOO_SMALL;
}
output->pBuffers[idx].cbBuffer = output_token.length;
memcpy( output->pBuffers[idx].pvBuffer, output_token.value, output_token.length );
pgss_release_buffer( &minor_status, &output_token );
ctxhandle_gss_to_sspi( ctx_handle, new_context );
if (context_attr) *context_attr = flags_gss_to_asc_ret( ret_flags );
expirytime_gss_to_sspi( expiry_time, expiry );
}
return status_gss_to_sspi( ret );
}
static NTSTATUS init_creds( const char *user_at_domain, const char *password )
{
krb5_context ctx;
@ -498,6 +560,7 @@ static NTSTATUS CDECL initialize_context( LSA_SEC_HANDLE credential, LSA_SEC_HAN
static const struct krb5_funcs funcs =
{
accept_context,
acquire_credentials_handle,
delete_context,
free_credentials_handle,

2
dlls/kerberos/unixlib.h
View File

@ -21,6 +21,8 @@
struct krb5_funcs
{
NTSTATUS (CDECL *accept_context)(LSA_SEC_HANDLE, LSA_SEC_HANDLE, SecBufferDesc *, LSA_SEC_HANDLE *,
SecBufferDesc *, ULONG *, TimeStamp *);
NTSTATUS (CDECL *acquire_credentials_handle)(const char *, ULONG, const char *, const char *, LSA_SEC_HANDLE *,
TimeStamp *);
NTSTATUS (CDECL *delete_context)(LSA_SEC_HANDLE);