[PATCH v2 3/5] kerberos: Move support for SpAcceptLsaModeContext to the Unix library.
Signed-off-by: Hans Leidekker <hans(a)codeweavers.com> --- dlls/kerberos/krb5_ap.c | 91 ++++------------------------------------- dlls/kerberos/unixlib.c | 63 ++++++++++++++++++++++++++++ dlls/kerberos/unixlib.h | 2 + 3 files changed, 72 insertions(+), 84 deletions(-) diff --git a/dlls/kerberos/krb5_ap.c b/dlls/kerberos/krb5_ap.c index b1fe036a071..176546d9e1d 100644 --- a/dlls/kerberos/krb5_ap.c +++ b/dlls/kerberos/krb5_ap.c @@ -753,33 +753,6 @@ 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; @@ -906,70 +879,20 @@ 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 ) diff --git a/dlls/kerberos/unixlib.c b/dlls/kerberos/unixlib.c index f7579b3fae2..04bff0b032e 100644 --- a/dlls/kerberos/unixlib.c +++ b/dlls/kerberos/unixlib.c @@ -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, diff --git a/dlls/kerberos/unixlib.h b/dlls/kerberos/unixlib.h index 2f885e920d4..88d13ce8aab 100644 --- a/dlls/kerberos/unixlib.h +++ b/dlls/kerberos/unixlib.h @@ -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); -- 2.30.2
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Hans Leidekker