Most of these changes are either cmake-related or plugin-related.
Added a new test "plugins/legacy.zeek" to test that legacy Bro plugins
still work.
Also added a symlink bro-path-dev.in because some legacy Bro packages
won't install without it.
* origin/topic/robin/gh-239:
Undo a change to btest.cfg from a recent commit
Updating submodule.
Fix zeek-wrapper
Update for renaming BroControl to ZeekControl.
Updating submodule.
GH-239: Rename bro to zeek, bro-config to zeek-config, and bro-path-dev to zeek-path-dev.
This also installs symlinks from "zeek" and "bro-config" to a wrapper
script that prints a deprecation warning.
The btests pass, but this is still WIP. broctl renaming is still
missing.
#239
* origin/topic/jsiwek/alpine-support:
Add FTS dependency when building on Alpine
Remove unnecessary header include
Improve default DNS resolution support for Alpine/musl
Add dns_resolver option
On an older system (CentOS 7), there was a bug where although the
headers and libraries for kerberos and maxminddb were found correctly,
both of those components were listed as "false" in the "Bro Build Summary"
output from cmake.
* origin/topic/jsiwek/openssl-1.1:
Update install instructions for OpenSSL 1.1 compat
Remove requestorName parameter of ocsp_request event
Adjust x509 unit tests to work around OpenSSL 1.0 vs. 1.1 differences
Fixes for OpenSSL 1.1 support
This updates the "lookup_location" and "lookup_asn" BIFs to use
libmaxminddb. The motivation for this is that MaxMind is discontinuing
GeoLite Legacy databases: no updates after April 1, 2018, no downloads
after January 2, 2019. It's also noted that all GeoIP Legacy databases
may be discontinued as they are superseded by GeoIP2.
As opposed to plugins depending on a Bro source/build tree. This
required installing various Bro headers, BinPAC and it's headers,
bifcl, and Bro's custom CMake modules.
It turns out that --with-openssl does not currently work because even
when the correct library is chosen, the include path ordering will
(typically) cause the system OpenSSL to be included.
Push OpenSSL header directory as the highest priority one. This probably
also makes sense since OpenSSL is/will be one of the most common
libraries that needs specific include directories.
This just provides a convient way of indicating that ccache should
be used as compiler-wrapper during builds. e.g. when I want dev/debug
builds that (re)compile quickly, I do:
./configure --build-type=debug --generator=Ninja --ccache
time.
People keep running into the problem that they upgrade Bro but forget
to recompile their plugins--which can lead to crashes. While the
plugins' API version was supposed to catch this, it's not reliable as
that check may come too late. This change takes a different tack: We
compile a C function into the Bro binary that has Bro's version number
encoded into its name. A plugin can then reference that function. If
the Bro version changes, the function goes away and the plugin won't
load anymore.
I've integrated that function reference into the plugin skeleton code
so that new plugins get it automatically (unless explicitly removed).
I couldn't see a way to do it transparently for already existing
plugins unfortunately.
The version number used for the function name is slightly normalized
to skip any git revision postfixes (i.e., "2.5-xxx" is always treated
as "2.5-git") so that one doesn't need to recompile all plugins after
every master commit. That seems good enough, usually people run into
this when upgrading to a new release.
If one loads an old plugin into a new Bro, the error message looks
like this:
$ bro -NN Demo::Foo
fatal error in /home/robin/bro/master/scripts/base/init-bare.bro, line 1:
cannot load plugin library /home/robin/tmp/p/build//lib/Demo-Foo.linux-x86_64.so:
/home/robin/tmp/p/build//lib/Demo-Foo.linux-x86_64.so: undefined symbol: bro_version_2_5_git_debug
Not the prettiest, but better than a crash!
TODO: I'm still unsure if we should remove the plugin API version
altogetger now. This link-time check should catch everything the API
version does, except for master commits.
I reworked this a bit:
- Moved the globals into a new Pcap::* namespace, and renamed them
slightly.
- Moved the definitions of the globals into pcap/const.bif.
- Also moved the existing 'snaplen' into Pcap::* and removed
SnapLen() from the PktSrc API (it's really a pcap thing).
- Likewise moved the existing functions precompile_pcap_filter,
install_pcap_filter, and pcap_error, into Pcap::*.
- Did some more refactoring for the pcap code.
* 'master' of https://github.com/knielander/bro:
Refactored patch (removed options, less ambiguous name)
Allow Bro to run in fanout mode.
Allow libpcap buffer size to be set manually.
Allow Bro to run in fanout mode.
Allowed libpcap buffer size to be set via configuration.
