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[#3731] Fix fuzzing stalling because it cannot find inputs

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Also install fuzzers which will be required for CI
This commit is contained in:
Andrei Pavel 2025-03-20 10:13:10 +02:00
parent 2fff27e274
commit 857e917dad
No known key found for this signature in database
GPG Key ID: D4E804481939CB21
3 changed files with 66 additions and 16 deletions
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9
fuzz/main.cc
View File

@ -1,4 +1,4 @@
// Copyright (C) 2024 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2024-2025 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
@ -36,7 +36,12 @@ main(int, char* argv[]) {
// Determine some paths.
Path const this_binary(argv[0]);
string const ancestor_path(Path(this_binary.parentPath()).parentPath());
string ancestor_path(this_binary.parentPath());
// TODO: remove kludgy if-condition when autotools gets removed.
if (Path(ancestor_path).filename() == ".libs") {
ancestor_path = Path(ancestor_path).parentPath();
}
cout << ancestor_path << endl;
string const filename(this_binary.filename());
stringstream ss;
ss << ancestor_path << "/input/" << filename;

49
fuzz/meson.build
View File

@ -2,7 +2,34 @@ if not FUZZ_OPT.enabled()
subdir_done()
endif
subdir('tests')
current_source_dir = meson.current_source_dir()
list = []
foreach i : [
'fuzz_config_kea_dhcp4',
'fuzz_config_kea_dhcp6',
'fuzz_http_endpoint_kea_dhcp4',
'fuzz_http_endpoint_kea_dhcp6',
'fuzz_packets_kea_dhcp4',
'fuzz_packets_kea_dhcp6',
'fuzz_unix_socket_kea_dhcp4',
'fuzz_unix_socket_kea_dhcp6',
'fuzz_config_kea_dhcp4/doc-examples',
'fuzz_config_kea_dhcp6/doc-examples',
]
command = run_command(
GRABBER,
f'input/@i@',
'*',
check: true,
)
foreach j : command.stdout().strip().split('\n')
# configure_file doesn't work with path segments in the output, so let
# us simulate it with commands.
run_command([f'mkdir', '-p', f'@TOP_BUILD_DIR@/fuzz/input/@i@'], check: true)
run_command([f'cp', f'input/@i@/@j@', f'@TOP_BUILD_DIR@/fuzz/input/@i@/@j@'], check: true)
endforeach
endforeach
fuzz_sources = ['fuzz.cc', 'fuzz.h']
cpp_flags = [
@ -10,7 +37,7 @@ cpp_flags = [
f'-DKEA_LFC_SOURCES="@KEA_LFC_BUILT@"',
]
if FUZZING_WITH_CLUSTERFUZZLITE
cpp_flags = ['-fsanitize=fuzzer', '-gdwarf-4']
cpp_flags += ['-fsanitize=fuzzer', '-gdwarf-4']
else
fuzz_sources += ['main.cc']
endif
@ -34,6 +61,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp4_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -44,6 +73,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp6_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -54,6 +85,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp4_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -64,6 +97,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp6_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -74,6 +109,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp4_lib, kea_dhcpsrv_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -84,6 +121,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp6_lib, kea_dhcpsrv_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -94,6 +133,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp4_lib, kea_testutils_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
executable(
@ -104,4 +145,8 @@ executable(
dependencies: [CRYPTO_DEP, GTEST_DEP],
include_directories: includes,
link_with: [dhcp6_lib, kea_testutils_lib, fuzz_lib] + LIBS_BUILT_SO_FAR,
install: true,
install_dir: SBINDIR,
)
subdir('tests')

24
fuzz/tests/meson.build
View File

@ -1,13 +1,13 @@
foreach i : [
'test_fuzz_http_endpoint_kea_dhcp4.sh',
'test_fuzz_packets_kea_dhcp6.sh',
'test_fuzz_config_kea_dhcp4.sh',
'test_fuzz_packets_kea_dhcp4.sh',
'test_fuzz_unix_socket_kea_dhcp6.sh',
'test_fuzz_config_kea_dhcp6.sh',
'test_fuzz_unix_socket_kea_dhcp4.sh',
'test_fuzz_http_endpoint_kea_dhcp6.sh',
]
t = configure_file(input: i, output: i, copy: true)
test(i, t)
current_source_dir = meson.current_source_dir()
fuzz_test_scripts = run_command(
GRABBER,
current_source_dir,
'test_fuzz_*.sh',
check: true,
)
fuzz_test_scripts = fuzz_test_scripts.stdout().strip().split('\n')
foreach st : fuzz_test_scripts
bt = configure_file(input: st, output: st, copy: true)
test(st, bt)
endforeach