Bump version and change magic numbers to make the driver incompatible with
older versions. Also cleanup some driver checksum code missed by previous
commit.
- As discussed in #37, the WINDIVERT_FLAG_NO_CHECKSUM behavior has become the
default. This means that outbound packets returned by WinDivertRecv() are
no longer guaranteed to have valid checksums, thanks to TCP checksum
offloading by the Windows TCP/IP stack. The checksums can still be
recovered by calling WinDivertHelperCalcChecksums() manually.
- Remove the old WinDivert1.0 legacy API, as nobody should still be using it.
Replaces the old filter compiler with a new version that:
- Is a cleaner, more extensible, implementation.
- Can report specific error messages (e.g. bad token vs parse error).
- Supports the new C-style if-then-else expression "(A? B: C)" syntax.
Two new WinDivert helper API functions have been implemented:
- WinDivertHelperCheckFilter() can be used to check a filter string for
errors.
- WinDivertHelperEvalFilter() evaluates a filter on a given packet. Will be
useful for testing.
by the classify function and silently dropped. This can degrade outbound
speed significantly, as it forces the Windows TCP/IP stack to re-send the
missing data. Thanks to GhalemB who found the bug & fix.
* WinDivert sublayers are created and inserted when the driver is loaded.
* All WinDivert callouts are installed at the same sublayer.
- Clean-up the implementation of priorities.
- Re-introduce deep copying for SNIFF mode. This avoids referencing the
sniffed packets.
- Fix-up the netfilter example:
* Don't send RSTs to RST/FINs, this can start a RST war.
* Don't inject ICMP outbound - this may not be a problem despite 1233 errors.
1) Remove the dependency on the WdfCoInstaller*.dll file. This file appears
to be unnecessary for Windows 7 and up, and for patched Vista+2008.
2) Remove the WinDivert.inf file (only used by the co-installer).
3) 32/64-bit versions of the driver are now explicitly named, meaning that
the two can co-exist in the same directory.
4) The 32-bit WinDivert.dll can now automatically load the 64-bit driver on
64-bit Windows. This means it is possible to write 32-bit WinDivert
applications that automatically work on 64-bit windows.
5) WinDivert.dll now schedules the WinDivert service to be deleted right
away. This should fix some cases where the service is never deleted,
even during reboot.
6) Updated build scripts to reflect the changes.
basil00