diff options
Diffstat (limited to 'pkg/host')
| -rw-r--r-- | pkg/host/host.go | 32 | ||||
| -rw-r--r-- | pkg/host/host_test.go | 11 |
2 files changed, 22 insertions, 21 deletions
diff --git a/pkg/host/host.go b/pkg/host/host.go index 9aafbce6e..0fa66dfa4 100644 --- a/pkg/host/host.go +++ b/pkg/host/host.go @@ -12,13 +12,13 @@ import ( "syscall" "github.com/google/syzkaller/pkg/osutil" - "github.com/google/syzkaller/sys" + "github.com/google/syzkaller/prog" ) // DetectSupportedSyscalls returns list on supported syscalls on host. -func DetectSupportedSyscalls() (map[*sys.Syscall]bool, error) { +func DetectSupportedSyscalls() (map[*prog.Syscall]bool, error) { // There are 3 possible strategies: - // 1. Executes all syscalls with presumably invalid arguments and check for ENOSYS. + // 1. Executes all syscalls with presumably invalid arguments and check for ENOprog. // But not all syscalls are safe to execute. For example, pause will hang, // while setpgrp will push the process into own process group. // 2. Check presence of /sys/kernel/debug/tracing/events/syscalls/sys_enter_* files. @@ -28,8 +28,8 @@ func DetectSupportedSyscalls() (map[*sys.Syscall]bool, error) { // Requires CONFIG_KALLSYMS. Seems to be the most reliable. That's what we use here. kallsyms, _ := ioutil.ReadFile("/proc/kallsyms") - supported := make(map[*sys.Syscall]bool) - for _, c := range sys.Syscalls { + supported := make(map[*prog.Syscall]bool) + for _, c := range prog.Syscalls { if isSupported(kallsyms, c) { supported[c] = true } @@ -37,7 +37,7 @@ func DetectSupportedSyscalls() (map[*sys.Syscall]bool, error) { return supported, nil } -func isSupported(kallsyms []byte, c *sys.Syscall) bool { +func isSupported(kallsyms []byte, c *prog.Syscall) bool { if c.NR == ^uint64(0) { return false // don't even have a syscall number } @@ -59,12 +59,12 @@ func isSupported(kallsyms []byte, c *sys.Syscall) bool { return bytes.Index(kallsyms, []byte(" T sys_"+c.CallName+"\n")) != -1 } -func isSupportedSyzkall(c *sys.Syscall) bool { +func isSupportedSyzkall(c *prog.Syscall) bool { switch c.CallName { case "syz_test": return false case "syz_open_dev": - if _, ok := c.Args[0].(*sys.ConstType); ok { + if _, ok := c.Args[0].(*prog.ConstType); ok { // This is for syz_open_dev$char/block. // They are currently commented out, but in case one enables them. return true @@ -112,8 +112,8 @@ func isSupportedSyzkall(c *sys.Syscall) bool { panic("unknown syzkall: " + c.Name) } -func isSupportedSocket(c *sys.Syscall) bool { - af, ok := c.Args[0].(*sys.ConstType) +func isSupportedSocket(c *prog.Syscall) bool { + af, ok := c.Args[0].(*prog.ConstType) if !ok { println(c.Name) panic("socket family is not const") @@ -125,7 +125,7 @@ func isSupportedSocket(c *sys.Syscall) bool { return err != syscall.ENOSYS && err != syscall.EAFNOSUPPORT } -func isSupportedOpen(c *sys.Syscall) bool { +func isSupportedOpen(c *prog.Syscall) bool { fname, ok := extractStringConst(c.Args[0]) if !ok { return true @@ -137,7 +137,7 @@ func isSupportedOpen(c *sys.Syscall) bool { return err == nil } -func isSupportedOpenAt(c *sys.Syscall) bool { +func isSupportedOpenAt(c *prog.Syscall) bool { fname, ok := extractStringConst(c.Args[1]) if !ok { return true @@ -149,13 +149,13 @@ func isSupportedOpenAt(c *sys.Syscall) bool { return err == nil } -func extractStringConst(typ sys.Type) (string, bool) { - ptr, ok := typ.(*sys.PtrType) +func extractStringConst(typ prog.Type) (string, bool) { + ptr, ok := typ.(*prog.PtrType) if !ok { panic("first open arg is not a pointer to string const") } - str, ok := ptr.Type.(*sys.BufferType) - if !ok || str.Kind != sys.BufferString || len(str.Values) != 1 { + str, ok := ptr.Type.(*prog.BufferType) + if !ok || str.Kind != prog.BufferString || len(str.Values) != 1 { return "", false } v := str.Values[0] diff --git a/pkg/host/host_test.go b/pkg/host/host_test.go index 1eea00fe6..dc9225d5a 100644 --- a/pkg/host/host_test.go +++ b/pkg/host/host_test.go @@ -7,7 +7,8 @@ import ( "syscall" "testing" - "github.com/google/syzkaller/sys" + "github.com/google/syzkaller/prog" + _ "github.com/google/syzkaller/sys" ) func TestLog(t *testing.T) { @@ -18,7 +19,7 @@ func TestLog(t *testing.T) { t.Skipf("skipping: %v", err) } t.Logf("unsupported:") - for _, c := range sys.Syscalls { + for _, c := range prog.Syscalls { s, ok := supp[c] if ok && !s { t.Fatalf("map contains false value") @@ -27,9 +28,9 @@ func TestLog(t *testing.T) { t.Logf("\t%v", c.Name) } } - trans := sys.TransitivelyEnabledCalls(supp) + trans := prog.TransitivelyEnabledCalls(supp) t.Logf("transitively unsupported:") - for _, c := range sys.Syscalls { + for _, c := range prog.Syscalls { s, ok := trans[c] if ok && !s { t.Fatalf("map contains false value") @@ -58,7 +59,7 @@ func TestSupportedSyscalls(t *testing.T) { "stat", } for _, name := range safe { - c := sys.SyscallMap[name] + c := prog.SyscallMap[name] if c == nil { t.Fatalf("can't find syscall '%v'", name) } |
