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scan.l: Fix @load-plugin scripts loading

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For a plugin loaded via @load-plugin, create a YY_BUFFER_STATE holding
the required loads for the implicitly loaded files. In loaded scripts,
this generated file will show up with a path of the shared object file
of the plugin with the __preload__.zeek and __load__.zeek files loaded
by it.

Closes #2311
This commit is contained in:
Arne Welzel 2025-02-27 17:28:53 +01:00
parent d079a2b9a8
commit ab99f8e233
8 changed files with 157 additions and 8 deletions
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45
testing/btest/plugins/enum-bif-plugin.zeek Normal file
View file

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# @TEST-DOC: Ensure the enum from the .bif file is available right after @load-plugin in bare mode.
# @TEST-EXEC: ${DIST}/auxil/zeek-aux/plugin-support/init-plugin -u . Demo EnumBif
# @TEST-EXEC: cp -r %DIR/enum-bif-plugin/* .
#
# @TEST-EXEC: ./configure --zeek-dist=${DIST} && make
#
# @TEST-EXEC: ZEEK_PLUGIN_PATH=`pwd` zeek -b %INPUT >output.abs
# @TEST-EXEC: grep '[Ee]num' loaded_scripts.log > loaded_scripts.log.abs
# @TEST-EXEC: ZEEK_PLUGIN_PATH=./build zeek -b %INPUT >output.rel
# @TEST-EXEC: grep '[Ee]num' loaded_scripts.log > loaded_scripts.log.rel
#
# @TEST-EXEC: TEST_DIFF_CANONIFIER= btest-diff output.abs
# @TEST-EXEC: TEST_DIFF_CANONIFIER="sed -E 's/(Demo-EnumBif)\.(.*)$/\1.shared/' | $SCRIPTS/diff-remove-abspath" btest-diff loaded_scripts.log.abs
# @TEST-EXEC: TEST_DIFF_CANONIFIER= btest-diff output.rel
# @TEST-EXEC: TEST_DIFF_CANONIFIER="sed -E 's/(Demo-EnumBif)\.(.*)$/\1.shared/' | $SCRIPTS/diff-remove-abspath" btest-diff loaded_scripts.log.rel
@load misc/loaded-scripts
@load ./enum-before-load-plugin
@load-plugin Demo::EnumBif
@load ./enum-after-load-plugin
event zeek_init()
{
print(EnumBif::MyEnumA);
print enum_names(EnumBif::MyEnum);
}
@load-plugin Demo::EnumBif
@load ./enum-after-load-plugin-end
@TEST-START-FILE enum-before-load-plugin.zeek
# empty
@TEST-END-FILE
@TEST-START-FILE enum-after-load-plugin.zeek
# empty
@TEST-END-FILE
@TEST-START-FILE enum-after-load-plugin-end.zeek
# empty
@TEST-END-FILE