diff options
Diffstat (limited to 'internal/generate/classify_test.go')
| -rw-r--r-- | internal/generate/classify_test.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/internal/generate/classify_test.go b/internal/generate/classify_test.go index fecbb93..b03164b 100644 --- a/internal/generate/classify_test.go +++ b/internal/generate/classify_test.go @@ -1022,6 +1022,32 @@ func TestClassify67NameOnlyKinds(t *testing.T) { } } +// TestClassifyInitModuleVsFinitModule locks in the load-bearing distinction +// between the two module-loading syscalls (man 2 init_module). +// +// init_module(void *module_image, unsigned long len, const char *param_values) +// takes a userspace ELF image pointer and a module-PARAMETER string (not a +// filesystem path), so it must classify as KindModule (null_event) and capture +// neither an fd nor a path — param_values must NOT be mistaken for a path. +// +// finit_module(int fd, const char *param_values, int flags) reads the module +// from a file descriptor, so it must classify as KindFd via field-based +// matching on the leading "fd" field. +func TestClassifyInitModuleVsFinitModule(t *testing.T) { + if r := classifyFromData(t, FormatInitModule); r.Kind != KindModule { + t.Errorf("init_module: got kind %d, want KindModule", r.Kind) + } + if r := classifyFromData(t, FormatFinitModule); r.Kind != KindFd { + t.Errorf("finit_module: got kind %d, want KindFd", r.Kind) + } + + // param_values (uargs) is a parameter string, never a captured path: the + // init_module classification must not select KindPathname/KindName/KindOpen. + if r := classifyFromData(t, FormatInitModule); r.PathnameField != "" { + t.Errorf("init_module: unexpected PathnameField %q, want empty", r.PathnameField) + } +} + func TestClassify87NameOnlyKinds(t *testing.T) { tests := []string{ "sys_enter_rt_sigaction", |