On certain machines, virtual tokens were not getting generated due to lack of required privileges. Fixed it by assigning them before doing LogonUserExExW. Consolidated runtime dll loading logic.
PowerShell/Win32-OpenSSH#1162
* Updates To Address OneCore Linking
- Modified generate_s4u_user_token() and sys_auth_passwd() to dynamically load TranslateNameW() to avoid OneCore static library linking.
- Modified getusergroups() to avoid Lsa* calls that are not present in OneCore libraries.
* Updates To Address OneCore Linking - Revisions
- Corrected failure detection logic when TranslateNameW() cannot be located.
* Alternate Thread Creation API To Avoid Memory Leaks
- Switched from CreateThread() to _beginthreadex() and ExitThread() to _endthreadex() in order to avoid potential leaks when linking with static CRT library.
- Addressed a variety of warnings that were being detected with static code analysis.
* Addressed Type Cast Warning
- Added explicit cast to the output of _beginthreadex() to avoid a compiler warning.
* Indentation Fix
Added support to run sshd as non-system. In this mode, sshd can authenticate only the user that sshd is running as, and only via public key authentication.
PowerShell/Win32-OpenSSH#1153
Changes include:
- Removing sid from pwd structure to comply with Unix structure
- Integrating default shell logic within pwd
- pwd placeholder to allow logins using usernames not associated with Windows account (possible via custom LSA authentication)
- Moving all nonPTY logic from shellhost to session.c.
- ssh-shellhost is now exclusively for implementing PTY
- Spawning all session processes from within a shell
- Validation checks in safely_chroot
- Added chroot implementation that simply stores the path in internal state and sets an environment variable
- Spawned processes pickup chroot from environment variable
- Core change in realpath and resolved_path_utf16 now take into account chroot path.
- Unit tests
- Other miscellaneous changes to account for chroot enabled logic in core code
PowerShell/Win32-OpenSSH#190PowerShell/Win32-OpenSSH#292
Modified getusergroups() to use s4u tokens to discover nested groups and return them in NetBiosName\GroupName format.
Modified get_passwd() to internally normalize names to NetBiosName\SamAccountName format and changed functions that use it to translate to UPN where necessary.
Removed unnecessary support functions used by previous version of getusergroups().
Various refactoring and function consolidation / simplification.
Addressed several buffer over-read issues.
PowerShell/Win32-OpenSSH#553
Reworked resolved_path() into resolved_path_utf16() that combined utf16 conversion and path conditioning into a single function. This eliminated the previously non-threadsafe resolved_path() function that used a static buffer. Changed some functions to use unicode to eliminate use of previous resolve_path function.
Adjusted functions to use resolved_path_utf16().
Collapsed copy_file() function that was only used once.
Corrected compilation errors when debug4() and debug5() are enabled.
Removed debug statements that were interfering with APC wakeup due to the way that logging works in atomicio6().
Filled in a missing parameter in a debug statement.
Changed test helper so test name is displayed when running release build.
Corrected permissions check for whether to run symbolic links in test cases.
Removed TEST_RESOURCES() in unit tests calls due to inconsistent ability to sample handles in Windows 8.1 / Server 2012 R2.
1. Fix issue install-sshd.ps1 failed on Nano
2. Update settings of services in install-sshd.ps1 to match windows inbox
3. added setup tests and update the test helper scripts to run setup tests before changing configurations on the machine
4. added uninstallation tests
1. Add support to take key files with windows new line ending (PowerShell/Win32-OpenSSH#1130)
2. add test cases for CRLF
3. Update test helper script to catch the exitcode of unittest and report the failure
4. Enable uni test unittest-sshkey and unittest-sshkey
5. Disable resource check for signal tests due to some API issue to follow.
6. Remove workaround for windows new line ending in test scripts
7. Add test validation for ACL of registry entries when perform ssh-add
- Removed debug statements that were interfering with APC wakeup due to the way that logging works in atomicio6().
- Filled in a missing parameter in a debug statement.
- Reworked resolved_path() into resolved_path_utf16() that combined utf16 conversion and path conditioning into a single function. This eliminated the previously non-threadsafe resolved_path() function.
- Adjusted functions to use resolved_path_utf16().
- Collapsed copy_file() function that was only used once.
- Corrected compilation errors when debug4() and debug5() are enabled.
fileio_open previously treated all O_CREAT flags as CREATE_* flags in
CreateFile; CREATE_* always truncates files but O_CREAT only truncates
files when O_TRUNC is also set on POSIX platforms. This becomes
noticeable under SFTP sessions where remote files are opened with
O_APPEND: the file is instead truncated as in O_CREAT | O_TRUNC.
https://github.com/PowerShell/Win32-OpenSSH/issues/1078
Fixes following issues:
- gettimeofday : Incorrect converting 100ns intervals (from GetSystemTimeAsFileTime) to timeval.
(us % RATE_DIFF) means number of microseconds but it may be great than 10**6
- nanosleep : SetWaitableTimer works with 100ns intervals but get nanoseconnds (only part of timespec) Missed CloseHandle call in WaitForSingleObject error case.
https://github.com/PowerShell/Win32-OpenSSH/issues/1094
- Added implementation of symlink() using native CreateSymbolicLink() function.
- Added unit tests for symlink behavior in readlink(), lstat, stat(), and symlink().
- Reworked readlink() to be more inline with POSIX readlink() behavior.
- Reworked symlink handling in stat/lstat due to revised readlink().
- Added additional error handling to readlink().
- Added symlink() Implementation - Memory Leak Fix
- Modified fileio_readlink() to properly free a temporary buffer it creates.
https://github.com/PowerShell/Win32-OpenSSH/issues/1096https://github.com/PowerShell/Win32-OpenSSH/issues/191
- Updated wait_for_multiple_objects_enhanced() to handle a no-event request while alterable.
- Simplified wait_for_any_event() to by taking advantage of no-event alterable request in wait_for_multiple_objects_enhanced().
- Updated wait_for_any_event() to use MAX_CHILDREN limit instead of MAXIMUM_WAIT_OBJECTS limit.
- Removed unnecessary ZeroMemory() call.
- Created distinct definition MAXIMUM_WAIT_OBJECTS_ENHANCED
and modified functions to use it.
- Upped w32_select() event limit.
- Modified wait_for_multiple_objects_enhanced() to allow for 0 millisecond wait.
- Added wait_for_multiple_objects_enhanced() function that can logically handle wait-any on many children (system resources permitting).
- Added unit tests for wait_for_multiple_objects_enhanced().
- Incorporated use of wait_for_multiple_objects_enhanced() into main signal handler.
- Upped max child processes to 500.
1. Expand wildcard for input parameters
2. add scp tests with wildcard
3. for debug mode, need to enable the log to local log file.
4. update the path to log file
Regression: Service is unable to start if "ssh" programdata directory is missing.
Reason: This is due to refactored changes around w32_programdir() that moved its initialization to within win32_posix_initialize. sshd_main() is relying on this call even before the POSIX layer gets initialized.
Fix: Reverted the refactoring changes and added comments to consolidate these changes later. Also removed directory creation logic in install-sshd.ps1 that masked this issue before.
* Test Fixes on downlevel machines
1. Test fix to run on win7 and win8
2. Add -onecore parameter to start-opensshpackage in build helper script
3. Add copying of libcrypto.dll and libcrypto.pdb
4. Update the build number on appveyor.yml
* add NoOpenSSL and OneCore parameter for packaging
* update the log option so it can print out the build console log
* update script to use vs2017 if it exists
* update path to copy libcrypto.dll
PowerShell/Win32-OpenSSH#1065
Fix: In recent sshd architectural changes, post authentication changes that process user specific changes were missing in authenticated sshd worker. Added missing call.
PowerShell/Win32-OpenSSH#1052
Fix: getpwd* functions will now strip off domain of any local user account.
Updated file version info:
FileVersionRaw : 7.6.0.0
ProductVersionRaw : 7.6.0.0
ProductName : OpenSSH for Windows
ProductVersion : OpenSSH_7.6p1 for Windows
Updated softwareversion - this would show up in protocol identification string and when doing ssh -V
OpenSSH_for_Windows_7.6
Issue: All SSHD unauthenticated workers are currently running as "sshd". Any compromised worker can snoop into the process space of one other worker, steal authentication payload and elevate itself.
Fix: Added logic to spawn the unauthenticated workers under the context of run time unique security identities that will provide complete isolation between these worker processes.
Manoj Ampalam
Bryan Berns
Yanbing
Dominic Watley
Manoj Ampalam
Daniel Sweet
revngnr
bagajjal
Darren Tucker