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charset="utf-8" For some device configurations, it is useful to configure some resources, and adjust QEMU arguments at runtime, prior to fuzzing. This patch adds an "argfunc" to generic the generic_fuzz_config. When specified, it is responsible for configuring the resources and returning a string containing the corresponding QEMU arguments. This can be useful for targets that rely on e.g.: * a temporary qcow2 image * a temporary directory * an unused TCP port used to bind the VNC server Signed-off-by: Alexander Bulekov --- tests/qtest/fuzz/generic_fuzz.c | 10 +++++++++- tests/qtest/fuzz/generic_fuzz_configs.h | 1 + 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuz= z.c index be76d47d2d..062e2b6f26 100644 --- a/tests/qtest/fuzz/generic_fuzz.c +++ b/tests/qtest/fuzz/generic_fuzz.c @@ -936,12 +936,20 @@ static GString *generic_fuzz_cmdline(FuzzTarget *t) =20 static GString *generic_fuzz_predefined_config_cmdline(FuzzTarget *t) { + gchar *args; const generic_fuzz_config *config; g_assert(t->opaque); =20 config =3D t->opaque; setenv("QEMU_AVOID_DOUBLE_FETCH", "1", 1); - setenv("QEMU_FUZZ_ARGS", config->args, 1); + if (config->argfunc) { + args =3D config->argfunc(); + setenv("QEMU_FUZZ_ARGS", args, 1); + free(args); + } else { + g_assert_nonnull(config->args); + setenv("QEMU_FUZZ_ARGS", config->args, 1); + } setenv("QEMU_FUZZ_OBJECTS", config->objects, 1); return generic_fuzz_cmdline(t); } diff --git a/tests/qtest/fuzz/generic_fuzz_configs.h b/tests/qtest/fuzz/gen= eric_fuzz_configs.h index 7fed035345..1a133655ee 100644 --- a/tests/qtest/fuzz/generic_fuzz_configs.h +++ b/tests/qtest/fuzz/generic_fuzz_configs.h @@ -16,6 +16,7 @@ =20 typedef struct generic_fuzz_config { const char *name, *args, *objects; + gchar* (*argfunc)(void); /* Result must be freeable by g_free() */ } generic_fuzz_config; =20 const generic_fuzz_config predefined_configs[] =3D { --=20 2.28.0