newlib/winsup/cygwin/wincap.cc

/* wincap.cc -- figure out on which OS we're running. Set the
		capability class to the appropriate values.

   Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Red Hat, Inc.

This file is part of Cygwin.

This software is a copyrighted work licensed under the terms of the
Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
details. */

#include "winsup.h"
#include "security.h"
#include "ntdll.h"

/* CV, 2008-10-23: All wincapc's have to be in the .cygwin_dll_common section,
   same as wincap itself.  Otherwise the capability changes made in
   wincapc::init() are not propagated to any subsequently started process
   in the same session.  I'm only writing this longish comment because I'm
   puzzled that this has never been noticed before... */

/* Minimal set of capabilities which is equivalent to NT4. */
wincaps wincap_unknown __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_CHANGE_NOTIFY_PRIVILEGE,
  is_server:false,
  has_dacl_protect:false,
  has_ip_helper_lib:false,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:false,
  has_terminal_services:false,
  has_create_global_privilege:false,
  has_ioctl_storage_get_media_types_ex:false,
  has_extended_priority_class:false,
  has_guid_volumes:false,
  has_disk_ex_ioctls:false,
  has_disabled_user_tos_setting:false,
  has_fileid_dirinfo:false,
  has_exclusiveaddruse:false,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:true,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:false,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:false,
  has_sendmsg:false,
};

wincaps wincap_nt4 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_CHANGE_NOTIFY_PRIVILEGE,
  is_server:false,
  has_dacl_protect:false,
  has_ip_helper_lib:false,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:false,
  has_terminal_services:false,
  has_create_global_privilege:false,
  has_ioctl_storage_get_media_types_ex:false,
  has_extended_priority_class:false,
  has_guid_volumes:false,
  has_disk_ex_ioctls:false,
  has_disabled_user_tos_setting:false,
  has_fileid_dirinfo:false,
  has_exclusiveaddruse:false,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:true,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:false,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:false,
  has_sendmsg:false,
};

wincaps wincap_nt4sp4 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_CHANGE_NOTIFY_PRIVILEGE,
  is_server:false,
  has_dacl_protect:false,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:true,
  has_physical_mem_access:true,
  has_process_io_counters:false,
  has_terminal_services:false,
  has_create_global_privilege:false,
  has_ioctl_storage_get_media_types_ex:false,
  has_extended_priority_class:false,
  has_guid_volumes:false,
  has_disk_ex_ioctls:false,
  has_disabled_user_tos_setting:false,
  has_fileid_dirinfo:false,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:true,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:false,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:false,
  has_sendmsg:false,
};

wincaps wincap_2000 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_MANAGE_VOLUME_PRIVILEGE,
  is_server:false,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:false,
  has_ioctl_storage_get_media_types_ex:false,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:false,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:true,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:true,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:false,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:false,
  has_sendmsg:false,
};

wincaps wincap_2000sp4 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_CREATE_GLOBAL_PRIVILEGE,
  is_server:false,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:true,
  has_ioctl_storage_get_media_types_ex:false,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:false,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:true,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:true,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:false,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:false,
  has_sendmsg:false,
};

wincaps wincap_xp __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_MANAGE_VOLUME_PRIVILEGE,
  is_server:false,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:false,
  has_ioctl_storage_get_media_types_ex:true,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:true,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:false,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:false,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:true,
  has_sendmsg:false,
};

wincaps wincap_xpsp1 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_MANAGE_VOLUME_PRIVILEGE,
  is_server:false,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:false,
  has_ioctl_storage_get_media_types_ex:true,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:true,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:false,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:true,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:true,
  has_sendmsg:false,
};

wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x0,
  max_sys_priv:SE_CREATE_GLOBAL_PRIVILEGE,
  is_server:false,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:true,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:true,
  has_ioctl_storage_get_media_types_ex:true,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:true,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:false,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:false,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:true,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:false,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:true,
  has_sendmsg:false,
};

wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x4,
  max_sys_priv:SE_CREATE_GLOBAL_PRIVILEGE,
  is_server:true,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:false,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:true,
  has_ioctl_storage_get_media_types_ex:true,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:true,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:true,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:false,
  needs_logon_sid_in_sid_list:false,
  needs_count_in_si_lpres2:false,
  has_recycle_dot_bin:false,
  has_gaa_prefixes:true,
  has_gaa_on_link_prefix:false,
  supports_all_posix_ai_flags:false,
  has_restricted_stack_args:true,
  has_transactions:false,
  ts_has_dep_problem:false,
  has_recvmsg:true,
  has_sendmsg:false,
};

wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
  chunksize:0,
  heapslop:0x4,
  max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
  is_server:false,
  has_dacl_protect:true,
  has_ip_helper_lib:true,
  has_broken_if_oper_status:false,
  has_physical_mem_access:false,
  has_process_io_counters:true,
  has_terminal_services:true,
  has_create_global_privilege:true,
  has_ioctl_storage_get_media_types_ex:true,
  has_extended_priority_class:true,
  has_guid_volumes:true,
  has_disk_ex_ioctls:true,
  has_disabled_user_tos_setting:true,
  has_fileid_dirinfo:true,
  has_exclusiveaddruse:true,
  has_enhanced_socket_security:true,
  has_buggy_restart_scan:false,
  has_mandatory_integrity_control:true,
  needs_logon_sid_in_sid_list:false,
  needs_count_in_si_lpres2:true,
  has_recycle_dot_bin:true,
  has_gaa_prefixes:true,
  has_gaa_on_link_prefix:true,
  supports_all_posix_ai_flags:true,
  has_restricted_stack_args:false,
  has_transactions:true,
  ts_has_dep_problem:false,
  has_recvmsg:true,
  has_sendmsg:true,
};

wincapc wincap __attribute__((section (".cygwin_dll_common"), shared));

void
wincapc::init ()
{
  bool has_osversioninfoex = true;

  if (caps)
    return;		// already initialized

  memset (&version, 0, sizeof version);
  /* Request versionex info first, which is available on all systems since
     NT4 SP6 anyway.  If that fails, call the simple version. */
  version.dwOSVersionInfoSize = sizeof (OSVERSIONINFOEX);
  if (!GetVersionEx (reinterpret_cast<LPOSVERSIONINFO>(&version)))
    {
      has_osversioninfoex = false;
      version.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
      GetVersionEx (reinterpret_cast<LPOSVERSIONINFO>(&version));
    }

  switch (version.dwPlatformId)
    {
      case VER_PLATFORM_WIN32_NT:
	switch (version.dwMajorVersion)
	  {
	    case 4:
	      if (!has_osversioninfoex
		  && strcmp (version.szCSDVersion, "Service Pack 4") < 0)
		caps = &wincap_nt4;
	      else
		caps = &wincap_nt4sp4;
	      break;
	    case 5:
	      switch (version.dwMinorVersion)
		{
		  case 0:
		    if (version.wServicePackMajor < 4)
		      caps = &wincap_2000;
		    else
		      caps = &wincap_2000sp4;
		    break;

		  case 1:
		    caps = &wincap_xp;
		    switch (version.wServicePackMajor)
		      {
		      case 0:
			caps = &wincap_xp;
		      case 1:
			caps = &wincap_xpsp1;
		      default:
			caps = &wincap_xpsp2;
		      }
		    break;

		  default:
		    caps = &wincap_2003;
		}
	      break;
	    case 6:
	      caps = &wincap_vista;
	      break;
	    default:
	      caps = &wincap_unknown;
	      break;
	  }
	break;
      case VER_PLATFORM_WIN32_WINDOWS:
	/* I'd be very surprised if this code is ever hit, but it doesn't
	   hurt to keep it. */
	api_fatal ("Windows 95/98/Me are not supported.");
	break;
      default:
	caps = &wincap_unknown;
	break;
    }

  if (has_osversioninfoex && version.wProductType != VER_NT_WORKSTATION)
    {
      ((wincaps *)caps)->is_server = true;
      if (version.dwMajorVersion >= 6
	  && (version.wSuiteMask
	      & (VER_SUITE_TERMINAL | VER_SUITE_SINGLEUSERTS))
	     == VER_SUITE_TERMINAL)
	((wincaps *)caps)->ts_has_dep_problem = true;
    }
  if (NT_SUCCESS (NtQueryInformationProcess (GetCurrentProcess (),
					     ProcessWow64Information,
					     &wow64, sizeof wow64, NULL))
      && !wow64)
    {
      ((wincaps *)caps)->needs_count_in_si_lpres2 = false;
      ((wincaps *)caps)->has_restricted_stack_args = false;
    }

  __small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion,
		   version.dwMinorVersion);
}

void
wincapc::set_chunksize (DWORD nchunksize)
{
  ((wincaps *)caps)->chunksize = nchunksize;
}