"resolve" is used by the resolver system tests, and I'm not
certain whether delv exercises the same code, so rather than
remove it, I moved it to bin/tests/system.
(cherry picked from commit d0ec7d1f33)
The custom ISC SPNEGO mechanism implementation is no longer needed on
the basis that all major Kerberos 5/GSSAPI (mit-krb5, heimdal and
Windows) implementations support SPNEGO mechanism since 2006.
This commit removes the custom ISC SPNEGO implementation, and removes
the option from both autoconf and win32 Configure script. Unknown
options are being ignored, so this doesn't require any special handling.
Instead of calling isc_tls_initialize()/isc_tls_destroy() explicitly use
gcc/clang attributes on POSIX and DLLMain on Windows to initialize and
shutdown OpenSSL library.
This resolves the issue when isc_nm_create() / isc_nm_destroy() was
called multiple times and it would call OpenSSL library destructors from
isc_nm_destroy().
At the same time, since we now have introduced the ctor/dtor for libisc,
this commit moves the isc_mem API initialization (the list of the
contexts) and changes the isc_mem_checkdestroyed() to schedule the
checking of memory context on library unload instead of executing the
code immediately.
* Following the example set in 634bdfb16d, the tlsdns netmgr
module now uses libuv and SSL primitives directly, rather than
opening a TLS socket which opens a TCP socket, as the previous
model was difficult to debug. Closes#2335.
* Remove the netmgr tls layer (we will have to re-add it for DoH)
* Add isc_tls API to wrap the OpenSSL SSL_CTX object into libisc
library; move the OpenSSL initialization/deinitialization from dstapi
needed for OpenSSL 1.0.x to the isc_tls_{initialize,destroy}()
* Add couple of new shims needed for OpenSSL 1.0.x
* When LibreSSL is used, require at least version 2.7.0 that
has the best OpenSSL 1.1.x compatibility and auto init/deinit
* Enforce OpenSSL 1.1.x usage on Windows
(cherry picked from commit e493e04c0f)
BIND 9.17 changed exit code of skipped test to meet Automake
expectations in fa505bfb0e. BIND 9.16 was
not rewritten to Automake, but for consistency reasons, the same
SKIPPED_TEST_EXIT_CODE preprocessor macro is used (though the actual
exit code differs from the one in BIND 9.17).
(cherry picked from commit fa505bfb0e)
The BIND 9 libraries are considered to be internal only and hence the
API and ABI changes a lot. Keeping track of the API/ABI changes takes
time and it's a complicated matter as the safest way to make everything
stable would be to bump any library in the dependency chain as in theory
if libns links with libdns, and a binary links with both, and we bump
the libdns SOVERSION, but not the libns SOVERSION, the old libns might
be loaded by binary pulling old libdns together with new libdns loaded
by the binary. The situation gets even more complicated with loading
the plugins that have been compiled with few versions old BIND 9
libraries and then dynamically loaded into the named.
We are picking the safest option possible and usable for internal
libraries - instead of using -version-info that has only a weak link to
BIND 9 version number, we are using -release libtool option that will
embed the corresponding BIND 9 version number into the library name.
That means that instead of libisc.so.1608 (as an example) the library
will now be named libisc-9.16.10.so.
(cherry picked from commit c605d75ea5)
- isc_nm_tcpdnsconnect() sets up up an outgoing TCP DNS connection.
- isc_nm_tcpconnect(), _udpconnect() and _tcpdnsconnect() now take a
timeout argument to ensure connections time out and are correctly
cleaned up on failure.
- isc_nm_read() now supports UDP; it reads a single datagram and then
stops until the next time it's called.
- isc_nm_cancelread() now runs asynchronously to prevent assertion
failure if reading is interrupted by a non-network thread (e.g.
a timeout).
- isc_nm_cancelread() can now apply to UDP sockets.
- added shim code to support UDP connection in versions of libuv
prior to 1.27, when uv_udp_connect() was added
all these functions will be used to support outgoing queries in dig,
xfrin, dispatch, etc.
(cherry picked from commit 5dcdc00b93)
Using AC_RUN_IFELSE() in configure.ac breaks cross-compilation:
configure: error: cannot run test program while cross compiling
Commit 978c7b2e89 caused AC_RUN_IFELSE()
to be used instead of AC_LINK_IFELSE() because the latter had seemingly
been causing the check for --wrap support in the linker to not work as
expected. However, it later turned out that the problem lied elsewhere:
a minus sign ('-') was missing from the LDFLAGS variable used in the
relevant check [1].
Revert to using AC_LINK_IFELSE() for checking whether the linker
supports the --wrap option in order to make cross-compilation possible
again.
[1] see commit cfa4ea64bc
Some operating systems (e.g. Linux, FreeBSD) provide the
_Unwind_Backtrace() function in libgcc_s.so, which is automatically
linked into any binary using the functions provided by that library. On
OpenBSD, though, _Unwind_Backtrace() is provided by libc++abi.so, which
is not automatically linked into binaries produced by the stock system C
compiler.
Meanwhile, lib/isc/backtrace.c assumes that any GNU-compatible toolchain
allows _Unwind_Backtrace() to be used without any extra provisions in
the build system. This causes build failures on OpenBSD (and possibly
other systems).
Instead of making assumptions, actually check for _Unwind_Backtrace()
support in the toolchain if the backtrace() function is unavailable.
The LD_WRAP test in configure was broken, and failed to
indicate LD_WRAP support correctly, resulting in some unit
tests failing to run.
(cherry picked from commit cfa4ea64bc)
PKCS#11 support in BIND requires dlopen() support from the operating
system and thus building with "--enable-native-pkcs11 --without-dlopen"
should not be possible. Add an Autoconf check which enforces that
constraint. Adjust the pairwise testing model accordingly.
Since Mac OS X 10.1, Mach-O object files are by default built with a
so-called two-level namespace which prevents symbol lookups in BIND unit
tests that attempt to override the implementations of certain library
functions from working as intended. This feature can be disabled by
passing the "-flat_namespace" flag to the linker. Fix unit tests
affected by this issue on macOS by adding "-flat_namespace" to LDFLAGS
used for building all object files on that operating system (it is not
enough to only set that flag for the unit test executables).
Currently, building BIND using "--without-dlopen" universally breaks
building unit tests which employ the --wrap linker option (because the
replacement functions are put in a shared library and building shared
objects requires "--with-dlopen"). Fix by moving the overridden symbol,
isc_nmhandle_unref(), to lib/ns/tests/nstest.c and dropping
lib/ns/tests/wrap.c altogether. This makes lib/ns/tests/Makefile.in
simpler and prevents --without-dlopen from messing with the process of
building unit tests.
Remove parts of configure.ac which are made redundant by the above
changes.
Put the replacement definition of isc_nmhandle_unref() inside an #ifdef
block, so that the build does not break for non-libtool builds (see
below).
These changes allow the broadest possible set of build variants to work
while also simplifying the build process:
- for libtool builds, overriding isc_nmhandle_unref() is done by
placing that symbol directly in lib/ns/tests/nstest.c and relying on
the dynamic linker to perform symbol resolution in the expected way
when the test binary is run,
- for non-libtool builds, overriding isc_nmhandle_unref() is done
using the --wrap linker option (the libtool approach cannot be used
in this case as multiple strong symbols with the same name cannot
coexist in the same binary),
- the "--without-dlopen" option no longer affects building unit tests.
Pairwise testing is a test case generation technique based on the
observation that most faults are caused by interactions of at most two
factors. For BIND, its configure options can be thought of as such
factors.
Process BIND configure options into a model that is subsequently
processed by the PICT tool in order to find an effective test vector.
That test vector is then used for configuring and building BIND using
various combinations of configure options.
(cherry picked from commit 420986bf18)
Creation of EVP_MD_CTX and EVP_PKEY is quite expensive, so until we fix the code
to reuse the OpenSSL contexts and keys we'll use our own implementation of
siphash instead of trying to integrate with OpenSSL.
(cherry picked from commit 21d751dfc7)
Commit b580eb2fb3 inadvertently caused
dnstap-related man pages to be installed unconditionally. Ensure they
are only installed for dnstap-enabled builds.
The unittest.sh script tried to execute the unit tests when cmocka
development libraries was available, but kyua, the execution engine,
was not. Now, both need to be installed in the system.
The ARM and the manpages have been converted into Sphinx documentation
format.
Sphinx uses reStructuredText as its markup language, and many of its
strengths come from the power and straightforwardness of
reStructuredText and its parsing and translating suite, the Docutils.
(cherry picked from commit 9fb6d11abb)
Some operating systems (e.g. CentOS, OpenBSD) install the main pytest
script as "py.test-3". Add that name to the list of names passed to
AC_PATH_PROGS() in order for pytest to be properly detected on a broader
range of operating systems.
(cherry picked from commit d5562a3e7e)
Originally, every library and binaries got linked to everything, which
creates unnecessary overlinking. This wasn't as straightforward as it
should be as we still support configuration without libtool for 9.16.
Couple of smaller issues related to include headers and an issue where
sanitizer overload dlopen and dlclose symbols, so we were getting false
negatives in the autoconf test.
The system tests currently uses patchwork of shell scripts which doesn't
offer proper error handling.
This commit introduced option to write new tests in pytest framework
that also allows easier manipulation of DNS traffic (using dnspython),
native XML and JSON manipulation and proper error reporting.
(cherry picked from commit cf5105939c)
Revert the change from ad03c22e97 as
further testing has shown that with hyper-threading disabled, named with
ISC rwlocks outperforms named with pthread rwlocks in cold cache testing
scenarios. Since building named with pthread rwlocks might still be a
better choice for some workloads, keep the compile-time option which
enables that.
(cherry picked from commit 17101fd093)
- the configuration summary reported zlib compression was not
supported even when it was.
- when bind.keys.h was regenerated it violated clang-format style.
(cherry picked from commit beda680f90)
The change introduced by commit be159f5565
was not fully complete. Adjust ./configure summary so that it reflects
the new way the --with-tuning switch works, fixing the Autoconf variable
used for determining the value of that switch. Fix win32utils/Configure
so that it behaves the same way as its Unix counterpart.
(cherry picked from commit a5fc3a6364)
We were using our own versions of isc_uv_{export,import} functions
for multithreaded TCP listeners. Upcoming libuv version will
contain proper uv_{export,import} functions - use them if they're
available.
The new ISC_THREAD_LOCAL macro unifies usage of platform dependent
Thread Local Storage definition thread_local vs __thread vs
__declspec(thread) to a single macro.
The commit also unifies the required level of support for TLS as for
some parts of the code it was mandatory and for some parts of the code
it wasn't.
-Wl,-z,interpose is not supported.
-Wl,rpath=<path> is not supported use -Wl,rpath,<path> instead.
Use @SO@ for loadable extension.
Use -L <path> -l libwrap instead of libwrap.sa.
This is a replacement for the existing isc_socket and isc_socketmgr
implementation. It uses libuv for asynchronous network communication;
"networker" objects will be distributed across worker threads reading
incoming packets and sending them for processing.
UDP listener sockets automatically create an array of "child" sockets
so each worker can listen separately.
TCP sockets are shared amongst worker threads.
A TCPDNS socket is a wrapper around a TCP socket, which handles the
the two-byte length field at the beginning of DNS messages over TCP.
(Other wrapper socket types can be implemented in the future to handle
DNS over TLS, DNS over HTTPS, etc.)
