Commit Graph

269 Commits

Author SHA1 Message Date
Takashi Yano 9103de7028 Cygwin: pty: Use autoload feature for pseudo console system calls.
- The autoload feature is used rather than GetModuleHandle(),
  GetProcAddress() for CreatePseudoConsole(), ResizePseudoConsole()
  and ClosePseudoConsole().
2020-10-14 10:54:01 -04:00
Corinna Vinschen de7f13aa9a Cygwin: loadavg: improve debugging of load_init
When logging in via ssh with an unprivileged account,
PdhAddEnglishCounter returns with status 0x800007D0,
PDH_CSTATUS_NO_MACHINE.  We didn't find any workaround
but the changes to improve debugging output may help
in future.  Using UNICODE instead of ANSI functions is
a result of trying to fix this problem.

Also drop the prototype workaround for PdhAddEnglishCounterA.
It's not required anymore since Mingw-w64's pdh.h catched up.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-03-12 17:09:42 +01:00
Corinna Vinschen 5c4ce731ac Cygwin: Revert attempting to unload user profile after use
Revert "Cywin: user profile: unload impersonation user profile on exit"
Revert "Cygwin: seteuid: allow inheriting impersonation user profile handle"
Revert "Cygwin: user profile: add debug output to unload_user_profile"
Revert "Cygwin: user profile: Make an effort to unload unused user profiles"

This reverts commit bcb33dc4f0.
This reverts commit dd3730ed9c.
This reverts commit 8eee25241e.
This reverts commit 71b8777a71.

This patchset actually results in the following problem:

- After a couple of ssh logon/logoff attempts, an interactive session
  of the same user loging in, is broken.

Apparently UnloadUserProfile manages to unload the user's profile
even while a parallel interactive session still uses the user's
profile.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-03-04 17:31:27 +01:00
Corinna Vinschen 71b8777a71 Cygwin: user profile: Make an effort to unload unused user profiles
Does this work?  There's not much feedback given.

TODO: We might want to try unloading the user profile at process
exit as well, FWIW.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-02-23 17:30:44 +01:00
Corinna Vinschen 105fbdebdd Cygwin: s4uauth: allow to be called for identification only
s4uath was only callable to create an impersonation token so
far.  Rework the function to allow creating an identification
token for informational purposes even from untrusted processes.

Take domainname and username instead of a passwd pointer to be
more multi-purpose.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-02-22 21:58:51 +01:00
Corinna Vinschen 0fb497165f Cygwin: seteuid: use Kerberos/MsV1_0 S4U authentication by default
- This simple and official method replaces cyglsa and "create token"
  methods.  No network share access, same as before.

- lsaauth and create_token are disabled now.  If problems crop up,
  they can be easily reactivated.  If no problems crop up, they
  can be removed in a while, together with the lsaauth subdir.

- Bump Cygwin version to 3.0.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-01-26 19:41:03 +01:00
Corinna Vinschen 2993057a94 Cygwin: timerfd: implement TFD_TIMER_CANCEL_ON_SET
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-01-20 22:47:52 +01:00
Corinna Vinschen af4a65a26d Cygwin: Add FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-12-25 23:38:52 +01:00
Corinna Vinschen c05df02725 Cygwin: implement extensible clock interface
- Drop hires_[nm]s clocks, rename hires.h to clock.h.

- Implement clk_t class as an extensible clock class in new file clock.cc.

- Introduce get_clock(clock_id) returning a pointer to the clk_t instance
  for clock_id.  Provide the following methods along the lines of the former
  hires classes:

	void		clk_t::nsecs (struct timespec *);
	ULONGLONG	clk_t::nsecs ();
	LONGLONG	clk_t::usecs ();
	LONGLONG	clk_t::msecs ();
	void 		clk_t::resolution (struct timespec *);

- Add CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_RAW, CLOCK_MONOTONIC_COARSE
  and CLOCK_BOOTTIME clocks.

- Allow clock_nanosleep, pthread_condattr_setclock and timer_create to use
  all new clocks (both clocks should be usable with a small tweak, though).

- Bump DLL major version to 2.12.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-11-29 11:05:42 +01:00
Corinna Vinschen bf8aabe830 Cygwin: console: improve replacement char algorithm
Try various Unicode characters which may be used as a replacement
character in case an invalid character has to be printed.

Current list is 0xfffd "REPLACEMENT CHARACTER", 0x25a1 "WHITE SQUARE",
and 0x2592 "MEDIUM SHADE" in that order.

Additionally workaround a problem with some fonts (namely DejaVu
Sans Mono) which are returned wit ha broken fontname with trailing
stray characters.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-05 23:39:25 +02:00
Corinna Vinschen 1e0a1f59d9 Cygwin: implement sched_getcpu
* create new function __get_cpus_per_group to evaluate # of CPU groups
* Call from  format_proc_cpuinfo and sched_getcpu
* Bump API minor version

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-08-07 14:51:10 +02:00
Corinna Vinschen e9ff2d6978 Cygwin: bindresvport: Try hard to find unused port
Workaround the problem that bind doesn't fail with EADDRINUSE
if a socket with the same local address is still in TIME_WAIT.

Use IP Helper functions to check if such a socket exist and don't
even try this port, if so.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-02-05 21:05:09 +01:00
Corinna Vinschen 76f06705be cygwin: convert most #ifndef __x86_64__ to #ifdef __i386__
Address the real offender

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2017-11-27 14:36:06 +01:00
Jon Turney d0a359f6d2 Implement getloadavg()
v2:
autoload PerfDataHelper functions
Keep loadavg in shared memory
Guard loadavg access by a mutex
Initialize loadavg to the current load

v3:
Shared memory version bump isn't needed if we are only extending it
Remove unused autoload
Mark inititalized flags as NO_COPY for correct behaviour in fork child

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2017-03-27 22:03:58 +01:00
Corinna Vinschen e855447fd2 Drop autoloading transaction functions from ntdll 2016-06-24 21:07:39 +02:00
Corinna Vinschen 9d163cf80c Drop autoloading kernel32 symbols available since Vista 2016-06-24 21:07:39 +02:00
Corinna Vinschen 450b2dc8ed Drop autoloading of CancelSynchronousIo 2016-06-24 21:07:39 +02:00
Corinna Vinschen 23a556f2c5 Drop has_set_thread_stack_guarantee flag 2016-06-24 16:02:40 +02:00
Corinna Vinschen c356901f0d Rename if_indextoname to cygwin_if_indextoname (analag for if_nametoindex)
Just call OS functions
2016-06-24 16:02:39 +02:00
Corinna Vinschen 105f79b489 Drop use_dont_resolve_hack flag
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-06-24 15:42:06 +02:00
Corinna Vinschen 6e623e9320 Switching the Cygwin DLL to LGPLv3+, dropping commercial buyout option
Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause.

Everything else stays under GPLv3+.

New Linking Exception exempts resulting executables from LGPLv3 section 4.

Add CONTRIBUTORS file to keep track of licensing.

Remove 'Copyright Red Hat Inc' comments.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-06-23 10:09:17 +02:00
Peter Foley fa6a5a3a74 Use DnsFree instead of deprecated DnsRecordListFree
The latest version of the mingw headers have been updated to make
DnsRecordListFree an alias of DnsFree when targeting Windows XP or later.
Use DnsFree directly, avoiding the wrapper function.

/home/peter/cross/src/cygwin/winsup/cygwin/libc/minires-os-if.c:289:
undefined reference to `DnsFree'

winsup/cygwin/ChangeLog
autoload.cc: Load DnsFree rather then DnsRecordListFree
libc/minires-os-if.cc (cygwin_query): Use DnsFree rather then DnsRecordListFree

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-23 11:41:26 +01:00
Corinna Vinschen 264b5e137e Move definition of wsadata into wsock_init
The problem this patch fixes showed up after updating to gcc-5.3.0.  The
cuplrit is a change in gcc when emitting section attributes.  It only
shows up when building without optimization.  Effect in Cygwin: ws2_32
functions failed to load.

In the original code the definition of "NO_COPY wsadata" was preceeding
an __asm__ block (the definition of the _wsock_init wrapper), while the
definition of "NO_COPY here" immediately follows the same assembler
block.  When gcc-5.3.0 emits assembler code for the wsadata definition,
it emits the .data_cygwin_nocopy section attribute.

Next it emits the assembler output for the __asm_ block, entirely ignoring
its content.  The __asm__ block adds a .text section definition.

Eventually gcc emits assembler code for the here definition.  However,
apparently gcc still "knows" that it just emitted the .data_cygwin_nocopy
section attribute and so doesn't redefine it.  Remember the __asm__?  It
changed the section to .text.

So with gcc-4.9.3 we got:

    .section .data_cygwin_nocopy,"w"
  wsadata:

  __asm__ block:
    .text

    .section .data_cygwin_nocopy,"w"
  here:

With gcc 5.3.0 we now get:

    .section .data_cygwin_nocopy,"w"
  wsadata:

  __asm__ block:
    .text

  here:

So "here" is now in the .text segment which is read-only.  Hilarity ensues.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-09 22:55:28 +01:00
Corinna Vinschen fcda8810a2 Don't use LoadLibraryEx(..., LOAD_LIBRARY_SEARCH_SYSTEM32). It hangs
Observed running hexchat under X.  For some reason the call to
	LoadLibraryEx(..., LOAD_LIBRARY_SEARCH_SYSTEM32) in dll_load
	hangs when trying to autoload MsgWaitForMultipleObjectsEx in
	select.cc after hexchat forks to run DNS calls.  Dropping the
	call and just using full paths as in 2.3.1 fixes the issue.

	* autoload.cc (dll_load): Drop call to LoadLibraryEx with
	LOAD_LIBRARY_SEARCH_SYSTEM32 flag.
	* wincap.h (wincaps::has_load_lib_search_flags): Remove.
	* wincap.cc (wincaps::has_load_lib_search_flags): Drop handling
	this flag.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-01-27 15:43:15 +01:00
Corinna Vinschen fc449e1c1f Initialize handle in dll_load to avoid compiler warning
* autoload.cc (dll_load): Initialize h to NULL.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-01-12 15:45:17 +01:00
Corinna Vinschen 8cd1ff7a45 Use MAKEWORD macro in WSAStartup call per documentation
* autoload.cc (wsock_init): Use MAKEWORD macro to create requested
	version rather than handcrafted expression.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-01-12 15:25:15 +01:00
Corinna Vinschen 15d6f564cd Try loading with safe path using LOAD_LIBRARY_SEARCH_SYSTEM32 first
* autoload.cc (dll_load): Move safe loading from std_dll_init here.
	Add code to handle systems supporting LOAD_LIBRARY_SEARCH flags.
	Add comments to explain what the code is doing.  Fix up comment
	preceeding this function.
	(std_dll_init): Move safe loading code to dll_load.
	* wincap.h (wincaps::has_load_lib_search_flags): New element.
        * wincap.cc: Implement above element throughout.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-01-12 15:23:14 +01:00
Corinna Vinschen b4cf3f454d Revert "autoload.cc: Drop using full paths for system DLLs"
This reverts commit 4b104ce070.

The DLLs always guaranteed to be loaded from the system dir are only
those in the KnownDLLs list.  We're using some DLLs not in that list on
all supported OSes, thus we need to make sure to use full paths.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-01-11 18:46:01 +01:00
Corinna Vinschen 42fad6ffa5 Add Authz class to compute exact POSIX user perms in a security descriptor
* autoload.cc (AuthzAccessCheck): Import.
	(AuthzFreeContext): Import.
	(AuthzInitializeContextFromSid): Import.
	(AuthzInitializeContextFromToken): Import.
	(AuthzInitializeResourceManager): Import.
	* sec_helper.cc (get_sids_info): Remove.
	(class authz_ctx_cache_entry): New class.
	(class authz_ctx_cache): New class.
	(class authz_ctx): New class.
	(authz_get_user_attribute): New function.
	* security.h (get_sids_info): Drop prototype.
	(authz_get_user_attribute): Add prototype.
	* winlean.h (_AUTHZ_): Define.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-11-18 22:28:33 +01:00
Corinna Vinschen 35d5d87540 Implement POSIX_MADV_WILLNEED/POSIX_MADV_DONTNEED for newer OSes
* autoload.cc (DiscardVirtualMemory): Import.
        (PrefetchVirtualMemory): Import.
        * mmap.cc (posix_madvise): Actually implement POSIX_MADV_WILLNEED
        utilizing PrefetchVirtualMemory and POSIX_MADV_DONTNEED utilizing
        DiscardVirtualMemory on systems supporting them.
        * wincap.h (wincaps::has_broken_prefetchvm): New element.
        * wincap.cc: Implement above element throughout.
        (wincapc::init): Make sure has_broken_prefetchvm is only true on
        W10 under WOW64.
        * include/cygwin/version.h (CYGWIN_VERSION_DLL_MAJOR): Bump to 2003.
        (CYGWIN_VERSION_API_MINOR): Reset to 0.

        * new-features.xml (ov-new2.3): New section, document posix_madvise
        POSIX_MADV_WILLNEED/POSIX_MADV_DONTNEED change.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-27 13:34:25 +02:00
Corinna Vinschen 4b104ce070 autoload.cc: Drop using full paths for system DLLs
System DLLs are always first in the DLL search order so
	http://www.microsoft.com/technet/security/advisory/2269637.mspx
	doesn't apply for them.

        * autoload.cc (std_dll_init): Revert using full paths to system DLLs.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-25 22:17:43 +02:00
Corinna Vinschen 859c10beee autload.cc: Avoid clobbering return address in noload on i686
This fixes a long-standing problem when GetProcAddress fails
	to load a function.  The noload code calls SetLastError on
	i686 without saving the edx register.  Starting with Windows 7,
	SetLastError apparently uses $edx and the register is set to
	0x00000000 on return.  So the subsequent `jmp *$edx' in noload
	supposed to return to the caller, actually jumps to address NULL,
	which results in a SEGV.

        * autoload.cc (noload): i686 only: Save and restore $edx when calling
        SetLastError to avoid clobbering return address stating with Windows 7.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-25 22:15:22 +02:00
Corinna Vinschen e0d48debed Fix /proc/cpuinfo topology and cache size info
* autoload.cc (GetLogicalProcessorInformationEx): Import.
        (SetThreadGroupAffinity): Import.
        * fhandler_proc.cc (add_size): New macro.
        (get_msb): New inline function.
        (mask_bits): Ditto.
        (format_proc_cpuinfo): Drop handling of old CPUs.  Check if we're
        running on a OS version supporting porcessor groups.  If so, use
        SetThreadGroupAffinity to set thread affinity.  Improve cache info
        to include 3rd level cache on Intel CPUs.  Improve multi core info.
        * wincap.h (wincaps::has_processor_groups): New element.
        * wincap.cc: Implement above element throughout.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-13 17:59:47 +02:00
Corinna Vinschen 2cd7eb7f60 Fix original stack when running signal handler on alternate stack
* autoload.cc (SetThreadStackGuarantee): Import.
        * cygtls.h (struct _cygtls): Replace thread_context with a ucontext_t
        called context.
        * exceptions.cc (exception::handle): Exit from process via signal_exit
        in case sig_send returns from handling a stack overflow SIGSEGV.
        Explain why.
        (dumpstack_overflow_wrapper): Thread wrapper to create a stackdump
        from another thread.
        (signal_exit): Fix argument list to reflect three-arg signal handler.
        In case we have to create a stackdump for a stack overflow condition,
        do so from a separate thread.  Explain why.
        (sigpacket::process): Don't run signal_exit on alternate stack.
        (altstack_wrapper): Wrapper function to do stack correction when
        calling the signal handler on an alternate stack to handle a stack
        overflow.  Make sure to have lots of comments.
        (_cygtls::call_signal_handler): Drop local context variable to reduce
        stack pressure.  Use this->context instead.  Change inline assembler
        to call altstack_wrapper.
        (_cygtls::signal_debugger): Accommodate aforementioned change to
        struct _cygtls.
        * tlsoffset.h: Regenerate.
        * tlsoffset64.h: Regenerate.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-07-04 22:49:30 +02:00
Corinna Vinschen 6bd719beeb
* autoload.cc (CreateEnvironmentBlock): Make loading non-fatal.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-03-11 12:56:53 +01:00
Corinna Vinschen f085e9d321 Fix condition in DLL loading loop 2015-03-11 12:22:45 +01:00
Corinna Vinschen bef55bb5c3 * autoload.cc (LsaLookupSids): Import.
* cygserver_pwdgrp.h: Include userinfo.h.  Drop workaround defining
	fetch_user_arg_type_t locally.
	* grp.cc (internal_getgrsid_cachedonly): New function.
	(internal_getgrfull): Ditto.
	(internal_getgroups): Rearrange function.  Center around fetching all
	cached group info first, calling LsaLookupSids on all so far non-cached
	groups second.  Pass all available info to new internal_getgrfull call.
	* pwdgrp.h: Include userinfo.h.  Move definitions of
	fetch_user_arg_type_t and fetch_user_arg_t there.
	(pwdgrp::add_group_from_windows): Declare with getting full group info.
	Called from internal_getgrfull.
	* uinfo.cc (pwdgrp::add_group_from_windows): Define.
	(pwdgrp::fetch_account_from_line): Add default case.
	(pwdgrp::fetch_account_from_file): Ditto.
	(pwdgrp::fetch_account_from_windows): Handle FULL_grp_arg.
	(client_request_pwdgrp::client_request_pwdgrp): Add default case.
	* userinfo.h: New header.
	(enum fetch_user_arg_type_t): Add FULL_grp_arg.
	(struct fetch_full_grp_t): New datatype.
2015-02-23 20:51:12 +00:00
Corinna Vinschen 41f77e25f1 * autoload.cc (CreateProfile): Import.
(LoadUserProfileW): Import.
	* registry.cc (get_registry_hive_path): Move to sec_auth.cc.
	(load_registry_hive): Remove.
	* registry.h (get_registry_hive_path): Drop declaration.
	(load_registry_hive): Ditto.
	* sec_auth.cc (get_user_profile_directory): Moved from registry.cc and
	renamed.  Take third parameter with buffer length.
	(load_user_profile): New function taking over for load_registry_hive.
	Use official functions to load profile.  If profile is missing, create
	it on Vista and later.
	* security.h (get_user_profile_directory): Declare.
	(load_user_profile): Declare.
	* syscalls.cc (seteuid32): Replace call to load_registry_hive with call
	to load_user_profile.
	* uinfo.cc (cygheap_user::env_userprofile): Replace call to
	get_registry_hive_path with call to get_user_profile_directory.
2014-12-02 10:49:47 +00:00
Corinna Vinschen 9119d13db8 * autoload.cc (CreateEnvironmentBlock): Import.
(DestroyEnvironmentBlock): Import.
	* environ.cc (env_compare): New static bsearch comparison function.
	(build_env): Add parameter taking a user token.  If token is non-NULL,
	fetch user's default Windows environment and merge it into the resulting
	environment.  Explain what we do in preceeding comment.
	* environ,h (build_env): Align prototype to above change.
	* external.cc (create_winenv): Call build_env with NULL token.
	* spawn.cc (child_info_spawn::worker): When spawning new process under
	another user account, call build_env with new token to allow merging
	user's default Windows environment.
	* winlean.h (_USERENV_): Define to override dllimport.
2014-12-02 10:16:03 +00:00
Corinna Vinschen 79a6cc4d49 * autoload.cc (IdnToAscii): Use simpler, equivalent LoadDLLfuncEx.
(IdnToUnicode): Ditto.
2014-12-02 09:59:01 +00:00
Corinna Vinschen 67986ac4a4 * autoload.cc: Replace WNet[...]A with WNet[...]W imports.
* dcrt0.cc (initial_env): Drop strlwr calls.  Call strcasestr instead.
	* fhandler_netdrive.cc: Throughout, convert to calling WNet UNICODE
	functions.  Use tmp_pathbuf rather than alloca.  Replace call to
	strlwr with call to RtlDowncaseUnicodeString.
2014-08-19 08:41:40 +00:00
Corinna Vinschen e35b92c202 * autoload.cc (ldap_search_sW): Replace ldap_search_stW.
(LdapMapErrorToWin32): Import.
	* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Accommodate
	change to cyg_ldap::open.
	* ldap.cc (CYG_LDAP_TIMEOUT): Remove.
	(CYG_LDAP_ENUM_TIMEOUT): Remove.
	(def_tv): Remove.
	(enum_tv): Remove.
	(cyg_ldap::map_ldaperr_to_errno): New method to map LDAP error codes to
	POSIX errno codes.  Explicitly map LDAP_NO_RESULTS_RETURNED to ENMFILE.
	(cyg_ldap::wait): Ditto.
	(struct cyg_ldap_init): New struct.
	(cyg_ldap::connect_ssl): Return ULONG.  Drop setting LDAP_OPT_TIMELIMIT.
	Add call to ldap_search_sW to fetch root DSE.
	(cyg_ldap::connect_non_ssl): Ditto.
	(ldap_init_thr): New static thread function.
	(cyg_ldap::connect): New method to call connect_ssl/connect_non_ssl in
	an interruptible cygthread.
	(struct cyg_ldap_search): New struct.
	(cyg_ldap::search_s): New method to perform generic synchronous search.
	(ldap_search_thr): New static thread function.
	(cyg_ldap::search): New method to call search_s in an interruptible
	cygthread.
	(struct cyg_ldap_next_page): New struct.
	(cyg_ldap::next_page_s): New method to perform generic synchronous
	paged search.
	(ldap_next_page_thr): New static thread function.
	(cyg_ldap::next_page): New method to call next_page_s in an
	interruptible cygthread.
	(cyg_ldap::open): Return POSIX errno.  Call connect method.
	(cyg_ldap::fetch_ad_account): Call search method rather than
	ldap_search_stW.
	(cyg_ldap::enumerate_ad_accounts): Return POSIX errno.  Use infinite
	timeout in call to ldap_search_init_pageW.
	(cyg_ldap::next_account): Return POSIX errno.  Call next_page method
	rather than ldap_get_next_page_s.
	(cyg_ldap::fetch_posix_offset_for_domain): Call search method rather
	than ldap_search_stW.
	(cyg_ldap::fetch_unix_sid_from_ad): Ditto.
	(cyg_ldap::fetch_unix_name_from_rfc2307): Ditto.
	* ldap.h (class cyg_ldap): Accommodate aforementioned changes.
	* passwd.cc (pg_ent::enumerate_ad): Ditto.  Break search if one of
	cyg_ldap::enumerate_ad_accounts or cldap.next_account returns with
	an error code other than ENMFILE.
	* sec_helper.cc (cygpsid::get_id): Accommodate change to cyg_ldap::open.
	* uinfo.cc (fetch_posix_offset): Ditto.
2014-06-25 09:10:50 +00:00
Corinna Vinschen f9f90410fd * autoload.cc (ldap_memfreeW): Remove.
(ldap_msgfree): Import.
	* ldap.cc: Throughout, use ldap_msgfree to free LDAPMessage memory,
	rather than ldap_memfreeW.
	(cyg_ldap::next_account): Immediately abandon search when quiting from
	search.
2014-05-23 10:29:11 +00:00
Corinna Vinschen 449429c16a * autoload.cc (ldap_abandon): Remove.
(ldap_count_entries): Import.
	(ldap_get_next_page_s): Import.
	(ldap_result): Remove.
	(ldap_searchW): Remove.
	(ldap_search_abandon_page): Import.
	(ldap_search_init_pageW): Import.
	* ldap.cc (cyg_ldap::close): Use ldap_search_abandon_page to abandon
	search.  Reset srch_id, srch_msg and srch_entry.
	(cyg_ldap::enumerate_ad_accounts): Use paged search to overcome server
	side search result set restriction.
	(cyg_ldap::next_account): Ditto.
	* ldap.h (class cyg_ldap): Add members srch_id, srch_msg and srch_entry.
	Remove member msg_id.
	(cyg_ldap::cyg_ldap): Change initialization accordingly.
2014-05-22 20:07:25 +00:00
Corinna Vinschen b39fa2c88d * autoload.cc (CheckTokenMembership): Import.
* external.cc (cygwin_internal): Call get_uid/get_gid instead of get_id.
	* grp.cc (internal_getgrsid): Take additional cyg_ldap pointer.
	Forward to pwdgrp::add_group_from_windows.
	(internal_getgrnam): Ditto.
	(internal_getgrgid): Ditto.
	(gr_ent::enumerate_local): Drop ugid_caching bool from call to
	pwdgrp::fetch_account_from_windows.
	(getgroups32): Rename from internal_getgroups and drop getgroups32 stub.
	Drop srchsid parameter and code handling it.  Add local cyg_ldap
	instance and forward to internal_getgrXXX.
	(getgroups): Call getgroups32.
	(get_groups): Add local cyg_ldap instance and forward to
	internal_getgrXXX.
	(getgrouplist): Ditto.
	(setgroups32): Ditto.
	* ldap.cc (cyg_ldap::open): Don't call close.  Return true if connection
	is already open.
	(cyg_ldap::remap_uid): Forward this to internal_getpwsid.
	(cyg_ldap::remap_gid): Forward this to internal_getgrsid.
	* passwd.cc (internal_getpwsid): Take additional cyg_ldap pointer.
	Forward to pwdgrp::add_user_from_windows.
	(internal_getpwnam): Ditto.
	(internal_getpwuid): Ditto.
	(pg_ent::enumerate_builtin): Drop ugid_caching bool from call to
	pwdgrp::fetch_account_from_windows.
	(pg_ent::enumerate_sam): Ditto.
	(pg_ent::enumerate_ad): Ditto.  Forward local cldap instead.
	* pwdgrp.h (internal_getpwsid): Align declaration to above change.
	(internal_getpwnam): Ditto.
	(internal_getpwuid): Ditto.
	(internal_getgrsid): Ditto.
	(internal_getgrgid): Ditto.
	(internal_getgrnam): Ditto.
	(internal_getgroups): Drop declaration.
	(pwdgrp::add_account_from_windows): Align declaration to below change.
	(pwdgrp::add_user_from_windows): Ditto.
	(pwdgrp::add_group_from_windows): Ditto.
	* sec_acl.cc (setacl): Add local cyg_ldap instance and forward to
	internal_getpwuid and internal_getgrgid.
	(getacl): Add local cyg_ldap instance and forward to cygpsid::get_id.
	(aclfromtext32): Add local cyg_ldap instance and forward to
	internal_getpwnam and internal_getgrnam.
	* sec_helper.cc (cygpsid::get_id): Take additional cyg_ldap pointer.
	Forward to internal_getgrsid and internal_getpwsid.
	(get_sids_info): Drop ldap_open.  Forward local cldap to
	internal_getpwsid and internal_getgrXXX.  Call CheckTokenMembership
	rather than internal_getgroups.
	* security.h (cygpsid::get_id): Add cyg_ldap pointer, drop default
	parameter.
	(cygpsid::get_uid): Add cyg_ldap pointer.  Call get_id accordingly.
	(cygpsid::get_gid): Ditto.
	* uinfo.cc (internal_getlogin): Add local cyg_ldap instance and forward
	to internal_getpwXXX and internal_getgrXXX calls.
	(pwdgrp::add_account_from_windows): Take additional cyg_ldap pointer.
	Forward to pwdgrp::fetch_account_from_windows.
	(fetch_posix_offset): Drop ldap_open argument and handling.  Get
	cyg_ldap instance as pointer.
	(pwdgrp::fetch_account_from_windows): Take additional cyg_ldap pointer.
	Use it if it's not NULL, local instance otherwise.  Drop ldap_open.
	Drop fetching extended group arguments from AD for speed.
2014-02-27 12:57:27 +00:00
Corinna Vinschen a8cf6887a2 * autoload.cc (ldap_abandon): Import.
(ldap_result): Import.
	(ldap_searchW): Import.
	(NetGroupEnum): Import.
	(NetLocalGroupEnum): Import.
	(NetUserEnum): Import.
	* cygheap.h (class cygheap_pwdgrp): Add members enums and enum_tdoms.
	(cygheap_pwdgrp::nss_db_enums): New inline method.
	(cygheap_pwdgrp::nss_db_enum_tdoms): Ditto.
	* cygtls.h (struct _local_storage): Drop unused members pw_pos and
	grp_pos.
	* grp.cc (grent): New static variable of class gr_ent.
	(gr_ent::enumerate_caches): New method.
	(gr_ent::enumerate_local): New method.
	(gr_ent::getgrent): New method.
	(setgrent): Call gr_ent method.
	(getgrent32): Ditto.
	(endgrent): Ditto.
	* ldap.cc (sid_attr): Rename from nfs_attr.
	(cyg_ldap::close): Abandon still running asynchronous search.
	(cyg_ldap::fetch_ad_account): Reduce filter buffer size.
	(cyg_ldap::enumerate_ad_accounts): New method.
	(cyg_ldap::next_account): New method.
	(cyg_ldap::fetch_posix_offset_for_domain): Reduce filter buffer size.
	(cyg_ldap::fetch_unix_sid_from_ad): Ditto.  Fix return value in case
	no value has been read.
	(cyg_ldap::fetch_unix_name_from_rfc2307): Reduce filter buffer size.
	* ldap.h (class cyg_ldap): Add msg_id member.
	(cyg_ldap::enumerate_ad_accounts): Declare.
	(cyg_ldap::next_account): Declare:
	* passwd.cc (pwent): New static variable of class pw_ent.
	(pg_ent::clear_cache): New method.
	(pg_ent::setent): New method.
	(pg_ent::getent): New method.
	(pg_ent::endent): New method.
	(pg_ent::enumerate_file): New method.
	(pg_ent::enumerate_builtin): New method.
	(pg_ent::enumerate_sam): New method.
	(pg_ent::enumerate_ad): New method.
	(pw_ent::enumerate_caches): New method.
	(pw_ent::enumerate_local): New method.
	(pw_ent::getpwent): New method.
	(setpwent): Call pw_ent method.
	(getpwent): Ditto.
	(endpwent): Ditto.
	* pwdgrp.h (class pwdgrp): Define pg_ent, pw_ent and gr_ent as friend
	classes.
	(pwdgrp::add_account_post_fetch): Declare with extra bool parameter.
	(pwdgrp::file_attr): New inline method.
	(enum nss_enum_t): Define.
	(class pg_ent): Define.
	(class pw_ent): Define.
	(class gr_ent): Define.
	* tlsoffsets.h: Regenerate.
	* tlsoffsets64.h: Ditto.
	* uinfo.cc (cygheap_pwdgrp::init): Initialize enums and enum_tdoms.
	(cygheap_pwdgrp::nss_init_line): Fix typo in preceeding comment.
	Handle new "db_enum" keyword.
	(pwdgrp::add_account_post_fetch): Take additional `bool lock' parameter
	and acquire pglock before adding element to array if lock is true.
	(pwdgrp::add_account_from_file): Call add_account_post_fetch with lock
	set to true.
	(pwdgrp::add_account_from_windows): Ditto in case of caching.
	(pwdgrp::fetch_account_from_windows): Handle builtin aliases only
	known to the domain controller.  Only call NetLocalGroupGetInfo for
	aliases.
2014-02-17 15:36:33 +00:00
Corinna Vinschen 7fa5cbbfcd * autoload.cc (NetLocalGroupGetInfo): Replace NetGroupGetInfo.
* cygheap.h (class cygheap_ugid_cache): Move ugid_cache_t type here
	and rename.
	(struct init_cygheap): Add cygheap_ugid_cache member "ugid_cache".
	* pwdgrp.h (class ugid_cache_t): Remove here.
	* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Accommodate
	move of ugid_cache to cygheap.
	* sec_helper.cc (get_sids_info): Ditto.
	* uinfo.cc (ugid_cache): Remove.
	(pwdgrp::fetch_account_from_windows): Define id_val globally.
	Move SidTypeAlias handling into SidTypeUser/SidTypeGroup branch since
	aliases are handled like groups in SAM.  Accommodate move of ugid_cache
	to cygheap.  Consolidate code reading SAM comments into a single branch
	for both, SidTypeUser and SidTypeAlias.  For SidTypeAlias, fix thinko
	and call NetLocalGroupGetInfo rather than NetGroupGetInfo.  Simplify
	code setting Cygwin primary group for SAM accounts.  Add code to handle
	UNIX uid/gid from SAM comment.
2014-02-11 11:51:29 +00:00
Corinna Vinschen 1ca20a1cd2 Introduce reading passwd/group entries from SAM/AD. Introduce
/etc/nsswitch.conf file to configure it.
	* Makefile.in (DLL_OFILES): Add ldap.o.
	* autoload.cc: Import ldap functions from wldap32.dll.
	(DsEnumerateDomainTrustsW): Import.
	(NetGroupGetInfo): Import.
	* cygheap.h (class cygheap_domain_info): New class to keep global
	domain info.
	(class cygheap_pwdgrp): New class to keep passwd/group caches and
	configuration info from /etc/nssswitch.conf.
	(struct init_cygheap): Add cygheap_domain_info member "dom" and
	cygheap_pwdgrp member "pg".
	* cygtls.h (struct _local_storage): Remove unused member "res".
	Rearrange slightly, Add members pwbuf and grbuf to implement non-caching
	passwd/group fetching from SAM/AD.  Make pw_pos and pw_pos unsigned.
	* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Add RFC 2307
	uid/gid mapping.
	* fhandler_process.cc: Drop including pwdgrp.h.
	* fhandler_procsysvipc.cc: Ditto.
	* fhandler_registry.cc (fhandler_registry::fstat): Set key uid/gid
	to ILLEGAL_UID/ILLEGAL_GID rather than UNKNOWN_UID/UNKNOWN_GID.
	* grp.cc (group_buf): Drop.
	(gr): Drop.
	(pwdgrp::parse_group): Fill pg_grp.
	(pwdgrp::read_group): Remove.
	(pwdgrp::init_grp): New method.
	(pwdgrp::prep_tls_grbuf): New method.
	(pwdgrp::find_group): New methods.
	(internal_getgrsid): Convert to call new pwdgrp methods.
	(internal_getgrnam): Ditto.
	(internal_getgrgid): Ditto.
	(getgrgid_r): Drop 2nd parameter from internal_getgrgid call.
	(getgrgid32): Ditto.
	(getgrnam_r): Ditto for internal_getgrnam.
	(getgrnam32): Ditto.
	(getgrent32): Convert to call new pwdgrp methods.
	(internal_getgrent): Remove.
	(internal_getgroups): Simplify, especially drop calls to
	internal_getgrent.
	* ldap.cc: New file implementing cyg_ldap class for LDAP access to AD
	and RFC 2307 server.
	* ldap.h: New header, declaring cyg_ldap class.
	* passwd.cc (passwd_buf): Drop.
	(pr): Drop.
	(pwdgrp::parse_passwd): Fill pg_pwd.
	(pwdgrp::read_passwd): Remove.
	(pwdgrp::init_pwd): New method.
	(pwdgrp::prep_tls_pwbuf): New method.
	(find_user): New methods.
	(internal_getpwsid): Convert to call new pwdgrp methods.
	(internal_getpwnam): Ditto.
	(internal_getpwuid): Ditto.
	(getpwuid32): Drop 2nd parameter from internal_getpwuid call.
	(getpwuid_r): Ditto.
	(getpwnam): Ditto for internal_getpwnam.
	(getpwnam_r): Ditto.
	(getpwent): Convert to call new pwdgrp methods.
	* path.cc (class etc): Remove all methods.
	* path.h (class etc): Drop.
	* pinfo.cc (pinfo_basic::pinfo_basic): Set gid to ILLEGAL_GID rather
	than UNKNOWN_GID.
	(pinfo_init): Ditto.
	* pwdgrp.h (internal_getpwnam): Drop 2nd parameter from declaration.
	(internal_getpwuid): Ditto.
	(internal_getgrgid): Ditto.
	(internal_getgrnam): Ditto.
	(internal_getgrent): Drop declaration.
	(enum fetch_user_arg_type_t): New type.
	(struct fetch_user_arg_t): New type.
	(struct pg_pwd): New type.
	(struct pg_grp): New type.
	(class pwdgrp): Rework to provide functions for file and db requests
	and caching.
	(class ugid_cache_t): New class to provide RFC 2307 uid map caching.
	(ugid_cache): Declare.
	* sec_acl.cc: Drop including pwdgrp.h.
	* sec_auth.cc: Drop including dsgetdc.h and pwdgrp.h.
	(get_logon_server): Convert third parameter to ULONG flags argument
	to allow arbitrary flags values in DsGetDcNameW call and change calls
	to this function throughout.  Use cached account domain name rather
	than calling GetComputerNameW.
	(get_unix_group_sidlist): Remove.
	(get_server_groups): Drop call to get_unix_group_sidlist.
	(verify_token): Rework token group check without calling
	internal_getgrent.
	* sec_helper.cc (cygpsid::pstring): New methods, like string() but
	return pointer to end of string.
	(cygsid::getfromstr): Add wide character implementation.
	(get_sids_info): Add RFC 2307 uid/gid mapping for Samba shares.
	* security.cc: Drop including pwdgrp.h.
	* security.h (DEFAULT_UID): Remove.
	(UNKNOWN_UID): Remove.
	(UNKNOWN_GID): Remove.
	(uinfo_init): Move here from winsup.h.
	(ILLEGAL_UID): Ditto.
	(ILLEGAL_GID): Ditto.
	(UNIX_POSIX_OFFSET): Define.  Add lengthy comment.
	(UNIX_POSIX_MASK): Ditto.
	(MAP_UNIX_TO_CYGWIN_ID): Ditto.
	(ILLEGAL_UID16): Move here from winsup.h.
	(ILLEGAL_GID16): Ditto.
	(uid16touid32): Ditto.
	(gid16togid32): Ditto.
	(sid_id_auth): New convenience macro for SID component access.
	(sid_sub_auth_count): Ditto.
	(sid_sub_auth): Ditto.
	(sid_sub_auth_rid): Ditto.
	(cygpsid::pstring): Declare.
	(cygsid::getfromstr): Declare wide character variant.
	(cygsid::operator=): Ditto.
	(cygsid::operator*=): Ditto.
	(get_logon_server): Change declaration according to source code.
	* setlsapwd.cc (setlsapwd): Drop 2nd parameter from internal_getpwnam
	call.
	* shared.cc (memory_init): Call cygheap->pg.init in first process.
	* syscalls.cc: Drop including pwdgrp.h.
	* tlsoffsets.h: Regenerate.
	* tlsoffsets64.h: Ditto.
	* uinfo.cc (internal_getlogin): Drop gratuitious internal_getpwuid
	call.  Fix debug output.  Overwrite user gid in border case of a
	missing passwd file while a group file exists.
	(pwdgrp::add_line): Allocate memory on cygheap.
	(pwdgrp::load): Remove.
	(ugid_cache): Define.
	(cygheap_pwdgrp::init): New method.
	(cygheap_pwdgrp::nss_init_line): New method.
	(cygheap_pwdgrp::_nss_init): New method.
	(cygheap_domain_info::init): New method.
	(logon_sid): Define.
	(get_logon_sid): New function.
	(pwdgrp::add_account_post_fetch): New method.
	(pwdgrp::add_account_from_file): New methods.
	(pwdgrp::add_account_from_windows): New methods.
	(pwdgrp::check_file): New method.
	(pwdgrp::fetch_account_from_line): New method.
	(pwdgrp::fetch_account_from_file): New method.
	(pwdgrp::fetch_account_from_windows): New method.
	* winsup.h: Move aforementioned macros and declarations to security.h.
2014-02-09 19:44:56 +00:00
Christopher Faylor 27c6e45ea3 * autoload.cc (timeBeginPeriod): Delete.
* dcrt0.cc (dll_crt0_1): Use NtSetTimerResolution rather than timeBeginPeriod.
2013-12-18 04:39:36 +00:00
Christopher Faylor e9da9dfb94 * autoload.cc (timeBeginPeriod): Autoload.
* dcrt0.cc (dll_crt0_1): Use timeBeginPeriod to set default resolution to 1 ms.
* pinfo.cc (pinfo::thisproc): Set ppid for redirected _pinfo blocks too.
(pinfo::init): Avoid using VirtualQuery.  Just rely on the assumption that
procinfo will be populated.
* pinfo.h (_pinfo::ppid): Move into redirected block.
2013-12-18 04:28:46 +00:00