/* 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" /* 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_7 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:1, mmap_storage_high:0x070000000000LL, { is_server:false, needs_query_information:true, has_gaa_largeaddress_bug:true, has_precise_system_time:false, has_microsoft_accounts:false, has_broken_prefetchvm:false, has_new_pebteb_region:false, has_broken_whoami:true, 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, no_msv1_0_s4u_logon_in_wow64:true, 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_query_process_handle_info:false, has_con_broken_tabs:false, }, }; wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x070000000000LL, { is_server:false, needs_query_information:true, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:false, has_broken_whoami: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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:false, }, }; wincaps wincap_8_1 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:false, has_broken_whoami: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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:false, }, }; wincaps wincap_10_1507 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:true, has_new_pebteb_region:false, has_broken_whoami: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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:false, }, }; wincaps wincap_10_1607 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:true, has_new_pebteb_region:false, has_broken_whoami: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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:false, }, }; wincaps wincap_10_1703 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:true, }, }; wincaps wincap_10_1709 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:true, }, }; wincaps wincap_10_1803 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64: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_query_process_handle_info:true, has_con_broken_tabs:true, }, }; wincaps wincap_10_1809 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64:false, 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_query_process_handle_info:true, has_con_broken_tabs:true, }, }; wincaps wincap_10_1903 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64:false, 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_query_process_handle_info:true, has_con_broken_tabs:true, }, }; wincaps wincap_10_2004 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64:false, 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_query_process_handle_info:true, has_con_broken_tabs:true, }, }; wincaps wincap_11 __attribute__((section (".cygwin_dll_common"), shared)) = { def_guard_pages:2, mmap_storage_high:0x700000000000LL, { is_server:false, needs_query_information:false, has_gaa_largeaddress_bug:false, has_precise_system_time:true, has_microsoft_accounts:true, has_broken_prefetchvm:false, has_new_pebteb_region:true, has_broken_whoami:false, 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, no_msv1_0_s4u_logon_in_wow64:false, 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_query_process_handle_info: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: switch (version.dwMinorVersion) { case 1: caps = &wincap_7; break; case 2: caps = &wincap_8; break; case 3: default: caps = &wincap_8_1; break; } 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); #ifdef __x86_64__ wow64 = 0; /* 64 bit systems have one more guard page than their 32 bit counterpart. */ ++((wincaps *)caps)->def_guard_pages; #else if (NT_SUCCESS (NtQueryInformationProcess (NtCurrentProcess (), ProcessWow64Information, &wow64, sizeof wow64, NULL)) && !wow64) #endif { ((wincaps *)caps)->has_gaa_largeaddress_bug = false; ((wincaps *)caps)->has_broken_prefetchvm = false; ((wincaps *)caps)->no_msv1_0_s4u_logon_in_wow64 = false; } __small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion, version.dwMinorVersion); }