How to use generateSandboxFunctionSignature method of csource Package

Best Syzkaller code snippet using csource.generateSandboxFunctionSignature

csource.go

Source:csource.go

...52	target    *prog.Target53	sysTarget *targets.Target54	calls     map[string]uint64 // CallName -> NR55}56func generateSandboxFunctionSignature(sandboxName string, sandboxArg int) string {57	if sandboxName == "" {58		return "loop();"59	}60	arguments := "();"61	if sandboxName == "android" {62		arguments = "(" + strconv.Itoa(sandboxArg) + ");"63	}64	return "do_sandbox_" + sandboxName + arguments65}66func (ctx *context) generateSource() ([]byte, error) {67	ctx.filterCalls()68	calls, vars, err := ctx.generateProgCalls(ctx.p, ctx.opts.Trace)69	if err != nil {70		return nil, err71	}72	mmapProg := ctx.p.Target.DataMmapProg()73	mmapCalls, _, err := ctx.generateProgCalls(mmapProg, false)74	if err != nil {75		return nil, err76	}77	for _, c := range append(mmapProg.Calls, ctx.p.Calls...) {78		ctx.calls[c.Meta.CallName] = c.Meta.NR79		for _, dep := range ctx.sysTarget.PseudoSyscallDeps[c.Meta.CallName] {80			depCall := ctx.target.SyscallMap[dep]81			if depCall == nil {82				panic(dep + " is specified in PseudoSyscallDeps, but not present")83			}84			ctx.calls[depCall.CallName] = depCall.NR85		}86	}87	varsBuf := new(bytes.Buffer)88	if len(vars) != 0 {89		fmt.Fprintf(varsBuf, "uint64 r[%v] = {", len(vars))90		for i, v := range vars {91			if i != 0 {92				fmt.Fprintf(varsBuf, ", ")93			}94			fmt.Fprintf(varsBuf, "0x%x", v)95		}96		fmt.Fprintf(varsBuf, "};\n")97	}98	sandboxFunc := generateSandboxFunctionSignature(ctx.opts.Sandbox, ctx.opts.SandboxArg)99	replacements := map[string]string{100		"PROCS":           fmt.Sprint(ctx.opts.Procs),101		"REPEAT_TIMES":    fmt.Sprint(ctx.opts.RepeatTimes),102		"NUM_CALLS":       fmt.Sprint(len(ctx.p.Calls)),103		"MMAP_DATA":       strings.Join(mmapCalls, ""),104		"SYSCALL_DEFINES": ctx.generateSyscallDefines(),105		"SANDBOX_FUNC":    sandboxFunc,106		"RESULTS":         varsBuf.String(),107		"SYSCALLS":        ctx.generateSyscalls(calls, len(vars) != 0),108	}109	if !ctx.opts.Threaded && !ctx.opts.Repeat && ctx.opts.Sandbox == "" {110		// This inlines syscalls right into main for the simplest case.111		replacements["SANDBOX_FUNC"] = replacements["SYSCALLS"]112		replacements["SYSCALLS"] = "unused"...

csource_test.go

Source:csource_test.go

...217			}218		})219	}220}221func generateSandboxFunctionSignatureTestCase(t *testing.T, sandbox string, sandboxArg int, expected, message string) {222	actual := generateSandboxFunctionSignature(sandbox, sandboxArg)223	assert.Equal(t, actual, expected, message)224}225func TestGenerateSandboxFunctionSignature(t *testing.T) {226	// This test-case intentionally omits the following edge cases:227	// - sandbox name as whitespaces, tabs228	// - control chars \r, \n and unprintables229	// - unsuitable chars - punctuation, emojis, '#', '*', etc230	// - character case mismatching function prototype defined in common_linux.h.231	//   For example 'do_sandbox_android' and 'AnDroid'.232	// - non english letters, unicode compound characters233	// and focuses on correct handling of sandboxes supporting and not 'sandbox_arg'234	// config setting.235	generateSandboxFunctionSignatureTestCase(t,236		"",        // sandbox name237		0,         // sandbox arg238		"loop();", // expected239		"Empty sandbox name should produce 'loop();'")240	generateSandboxFunctionSignatureTestCase(t,241		"abrakadabra",               // sandbox name242		0,                           // sandbox arg243		"do_sandbox_abrakadabra();", // expected244		"Empty sandbox name should produce 'loop();'")245	generateSandboxFunctionSignatureTestCase(t,246		"android",                    // sandbox name247		-1234,                        // sandbox arg248		"do_sandbox_android(-1234);", // expected249		"Android sandbox function requires an argument")250}...

generateSandboxFunctionSignature

Using AI Code Generation

1import (2func main() {3	target := prog.GetTarget("linux", "amd64")4	csource := compiler.New(target)5	csource.Options = append(csource.Options, compiler.OptSandboxSetuid)6	csource.Options = append(csource.Options, compiler.OptThreaded)7	csource.Options = append(csource.Options, compiler.OptCollide)8	csource.Options = append(csource.Options, compiler.OptRepeat)9	csource.Options = append(csource.Options, compiler.OptProcs)10	csource.Options = append(csource.Options, compiler.OptCgroups)11	csource.Options = append(csource.Options, compiler.OptEnableTun)12	csource.Options = append(csource.Options, compiler.OptEnableNetdev)13	csource.Options = append(csource.Options, compiler.OptEnableNetReset)14	csource.Options = append(csource.Options, compiler.OptEnableNetPrio)15	csource.Options = append(csource.Options, compiler.OptEnableNetCls)16	csource.Options = append(csource.Options, compiler.OptHandleSegv)17	csource.Options = append(csource.Options, compiler.OptHandleInt)18	csource.Options = append(csource.Options, compiler.OptHandleAbort)19	csource.Options = append(csource.Options, compiler.OptHandleTerm)20	csource.Options = append(csource.Options, compiler.OptHandleQuit)21	csource.Options = append(csource.Options, compiler.OptHandleHup)22	csource.Options = append(csource.Options, compiler.OptHandleAlrm)23	csource.Options = append(csource.Options, compiler.OptHandleUsr1)24	csource.Options = append(csource.Options, compiler.OptHandleUsr2)25	csource.Options = append(csource.Options, compiler.OptHandleChld)26	csource.Options = append(csource.Options, compiler.OptHandleCont)27	csource.Options = append(csource.Options, compiler.OptHandleStop)28	csource.Options = append(csource.Options, compiler.OptHandleTstp)29	csource.Options = append(csource.Options, compiler.OptHandleTTin)30	csource.Options = append(csource.Options, compiler.OptHandleTTOU)31	csource.Options = append(csource.Options, compiler.OptHandleURG)

generateSandboxFunctionSignature

Using AI Code Generation

1import (2func main() {3	csource := compiler.NewCSource()4	csource.Options = &compiler.Options{5	}6	csource.Features = compiler.Features{7	}8	csource.Target = &compiler.Target{9	}10	csource.Compilers = map[string]*compiler.Compiler{11		"c": &compiler.Compiler{12			Options:  []string{"-O1", "-m64", "-fno-inline", "-fno-builtin", "-static"},13		},14	}15	csource.CFlags = []string{"-DFOO=1", "-DBAR=2"}16	csource.CDefines = []string{"#define BAZ 3"}17	csource.CIncludes = []string{"/usr/include/stdio.h"}

generateSandboxFunctionSignature

Using AI Code Generation

1import (2func main() {3	csource := csource.CSource{}4	fmt.Println(csource.GenerateSandboxFunctionSignature())5}6int sandbox(const char* filename, const char* dirname, int argc, const char** argv, const char** envp, const char* data, size_t data_size)7import (8func main() {9	csource := csource.CSource{}10	fmt.Println(csource.GenerateSandboxFunction())11}12int sandbox(const char* filename, const char* dirname, int argc, const char** argv, const char** envp, const char* data, size_t data_size)13{14	int pid = fork();15	if (pid < 0)16		exitf("fork failed");17	if (pid == 0) {18		if (chdir(dirname))19			exitf("chdir failed");20		if (chroot(dirname))21			exitf("chroot failed");22		if (unshare(CLONE_NEWNS))23			exitf("unshare failed");24		if (mount("", "/", "", MS_PRIVATE | MS_REC, NULL))25			exitf("mount failed");26		if (mount("none", "/", "", MS_REC | MS_PRIVATE, NULL))27			exitf("mount failed");28		if (mount("none", "/tmp", "", MS_REC | MS_PRIVATE, NULL))29			exitf("mount failed");30		if (mount("none", "/dev", "", MS_REC | MS_PRIVATE, NULL))31			exitf("mount failed");32		if (mount("none", "/proc", "", MS_REC | MS_PRIVATE, NULL))33			exitf("mount failed");34		if (mount("none", "/sys", "", MS_REC | MS_PRIVATE, NULL))35			exitf("mount failed");36		if (mount("none", "/run", "", MS_REC | MS_PRIVATE, NULL))37			exitf("mount failed");38		if (mount("none", "/var",

generateSandboxFunctionSignature

Using AI Code Generation

1void generateSandboxFunctionSignature(const FunctionDecl *funcDecl, raw_ostream &OS);2void generateSandboxFunctionBody(const FunctionDecl *funcDecl, raw_ostream &OS);3void generateSandboxFunctionWrapper(const FunctionDecl *funcDecl, raw_ostream &OS);4void CSource::generateSandboxFunctionSignature(const FunctionDecl *funcDecl, raw_ostream &OS) {5}6void CSource::generateSandboxFunctionBody(const FunctionDecl *funcDecl, raw_ostream &OS) {7}8void CSource::generateSandboxFunctionWrapper(const FunctionDecl *funcDecl, raw_ostream &OS) {

generateSandboxFunctionSignature

Using AI Code Generation

1import (2func main() {3	cs := gobus.NewCSource()4	signature := cs.GenerateSandboxFunctionSignature("sandbox_function")5	fmt.Println(signature)6}7import (8func main() {9	cs := gobus.NewCSource()10	sandboxFunction := cs.GenerateSandboxFunction("sandbox_function")11	fmt.Println(sandboxFunction)12}13import (14func main() {15	cs := gobus.NewCSource()16	sandboxFunction := cs.GenerateSandboxFunction("sandbox_function", "return 1;")17	fmt.Println(sandboxFunction)18}19import (20func main() {21	cs := gobus.NewCSource()22	sandboxFunction := cs.GenerateSandboxFunction("sandbox_function", "int x = 1; return x;")23	fmt.Println(sandboxFunction)24}

generateSandboxFunctionSignature

Using AI Code Generation

1import (2func main() {3    target, err := prog.GetTarget("linux", "amd64")4    if err != nil {5        fmt.Println(err)6    }7    csource := compiler.New(target)8    args := []string{"arg1", "arg2"}9    signature, err := csource.GenerateSandboxFunctionSignature(function, args)10    if err != nil {11        fmt.Println(err)12    }13    fmt.Println(signature)14}15func func1(arg1, arg2 uintptr) uintptr16import (17func main() {18    target, err := prog.GetTarget("linux", "amd64")19    if err != nil {20        fmt.Println(err)21    }22    csource := compiler.New(target)23    args := []string{"arg1", "arg2"}24    call, err := csource.GenerateSandboxFunctionCall(function, args)25    if err != nil {26        fmt.Println(err)27    }28    fmt.Println(call)29}30func1(arg1, arg2)

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