newlib-cygwin/winsup/cygwin/wincap.cc

292 lines
8.7 KiB
C++

/* wincap.cc -- figure out on which OS we're running. Set the
capability class to the appropriate values.
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 "miscfuncs.h"
#include "security.h"
#include "ntdll.h"
#include "memory_layout.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... */
wincaps wincap_8_1 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:false,
has_unprivileged_createsymlink:false,
has_precise_interrupt_time:false,
has_posix_unlink_semantics:false,
has_posix_unlink_semantics_with_ignore_readonly:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
has_con_24bit_colors:false,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
has_tcp_fastopen:false,
has_linux_tcp_keepalive_sockopts:false,
has_tcp_maxrtms:false,
has_con_broken_tabs:false,
},
};
wincaps wincap_10_1507 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:false,
has_unprivileged_createsymlink:false,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:false,
has_posix_unlink_semantics_with_ignore_readonly:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
has_con_24bit_colors:false,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
has_tcp_fastopen:false,
has_linux_tcp_keepalive_sockopts:false,
has_tcp_maxrtms:false,
has_con_broken_tabs:false,
},
};
wincaps wincap_10_1607 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:false,
has_unprivileged_createsymlink:false,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:false,
has_posix_unlink_semantics_with_ignore_readonly:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
has_con_24bit_colors:false,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:false,
has_tcp_maxrtms:true,
has_con_broken_tabs:false,
},
};
wincaps wincap_10_1703 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:false,
has_posix_unlink_semantics_with_ignore_readonly:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
has_con_24bit_colors:true,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:false,
has_tcp_maxrtms:true,
has_con_broken_tabs:true,
},
};
wincaps wincap_10_1709 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_posix_unlink_semantics_with_ignore_readonly:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
has_con_24bit_colors:true,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:true,
has_tcp_maxrtms:true,
has_con_broken_tabs:true,
},
};
wincaps wincap_10_1803 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_posix_unlink_semantics_with_ignore_readonly:false,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:false,
has_con_24bit_colors:true,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:true,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:true,
has_tcp_maxrtms:true,
has_con_broken_tabs:true,
},
};
wincaps wincap_10_1809 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_posix_unlink_semantics_with_ignore_readonly:true,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:true,
has_con_24bit_colors:true,
has_con_broken_csi3j:true,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:true,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:true,
has_tcp_maxrtms:true,
has_con_broken_tabs:true,
},
};
wincaps wincap_10_1903 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_posix_unlink_semantics_with_ignore_readonly:true,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:true,
has_con_24bit_colors:true,
has_con_broken_csi3j:false,
has_con_broken_il_dl:true,
has_con_esc_rep:true,
has_extended_mem_api:true,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:true,
has_tcp_maxrtms:true,
has_con_broken_tabs:true,
},
};
wincaps wincap_10_2004 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_posix_unlink_semantics_with_ignore_readonly:true,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:true,
has_con_24bit_colors:true,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:true,
has_extended_mem_api:true,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:true,
has_tcp_maxrtms:true,
has_con_broken_tabs:true,
},
};
wincaps wincap_11 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
is_server:false,
has_new_pebteb_region:true,
has_unprivileged_createsymlink:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_posix_unlink_semantics_with_ignore_readonly:true,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:true,
has_con_24bit_colors:true,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:true,
has_extended_mem_api:true,
has_tcp_fastopen:true,
has_linux_tcp_keepalive_sockopts:true,
has_tcp_maxrtms:true,
has_con_broken_tabs:false,
},
};
wincapc wincap __attribute__((section (".cygwin_dll_common"), shared));
void
wincapc::init ()
{
if (caps)
return; // already initialized
GetSystemInfo (&system_info);
version.dwOSVersionInfoSize = sizeof (RTL_OSVERSIONINFOEXW);
RtlGetVersion (&version);
/* Overwrite unreliable kernel version with correct values returned by
RtlGetNtVersionNumbers. See git log of this change for a description. */
RtlGetNtVersionNumbers (&version.dwMajorVersion,
&version.dwMinorVersion,
&version.dwBuildNumber);
version.dwBuildNumber &= 0xffff;
switch (version.dwMajorVersion)
{
case 6:
caps = &wincap_8_1;
break;
case 10:
default:
if (likely (version.dwBuildNumber >= 22000))
caps = &wincap_11;
else if (version.dwBuildNumber >= 19041)
caps = &wincap_10_2004;
else if (version.dwBuildNumber >= 18362)
caps = &wincap_10_1903;
else if (version.dwBuildNumber >= 17763)
caps = &wincap_10_1809;
else if (version.dwBuildNumber >= 17134)
caps = &wincap_10_1803;
else if (version.dwBuildNumber >= 16299)
caps = &wincap_10_1709;
else if (version.dwBuildNumber >= 15063)
caps = &wincap_10_1703;
else if (version.dwBuildNumber >= 14393)
caps = &wincap_10_1607;
else
caps = & wincap_10_1507;
}
((wincaps *)caps)->is_server = (version.wProductType != VER_NT_WORKSTATION);
__small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion,
version.dwMinorVersion);
}