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How to use DataMmapProg method of prog Package

Best Syzkaller code snippet using prog.DataMmapProg

ipc_test.go

Source:ipc_test.go

...80			t.Fatalf("failed to create env: %v", err)81		}82		defer env.Close()83		for i := 0; i < 10; i++ {84			p := target.DataMmapProg()85			opts := &ExecOpts{86				Flags: flag,87			}88			output, info, hanged, err := env.Exec(opts, p)89			if err != nil {90				t.Fatalf("failed to run executor: %v", err)91			}92			if hanged {93				t.Fatalf("program hanged:\n%s", output)94			}95			if len(info.Calls) == 0 {96				t.Fatalf("no calls executed:\n%s", output)97			}98			if info.Calls[0].Errno != 0 {99				t.Fatalf("simple call failed: %v\n%s", info.Calls[0].Errno, output)100			}101			if len(output) != 0 {102				t.Fatalf("output on empty program")103			}104		}105	}106}107func TestParallel(t *testing.T) {108	target, _, _, useShmem, useForkServer := initTest(t)109	bin := buildExecutor(t, target)110	defer os.Remove(bin)111	cfg := &Config{112		Executor:      bin,113		UseShmem:      useShmem,114		UseForkServer: useForkServer,115	}116	const P = 10117	errs := make(chan error, P)118	for p := 0; p < P; p++ {119		p := p120		go func() {121			env, err := MakeEnv(cfg, p)122			if err != nil {123				errs <- fmt.Errorf("failed to create env: %v", err)124				return125			}126			defer func() {127				env.Close()128				errs <- err129			}()130			p := target.DataMmapProg()131			opts := &ExecOpts{}132			output, info, hanged, err := env.Exec(opts, p)133			if err != nil {134				err = fmt.Errorf("failed to run executor: %v", err)135				return136			}137			if hanged {138				err = fmt.Errorf("program hanged:\n%s", output)139				return140			}141			if len(info.Calls) == 0 {142				err = fmt.Errorf("no calls executed:\n%s", output)143				return144			}...

DataMmapProg

Using AI Code Generation

1import (2func main() {3    bpfModule := bcc.NewModule(`4    struct data_t {5        u32 pid;6        char comm[TASK_COMM_LEN];7    };8    BPF_PERF_OUTPUT(events);9    int hello_world(void *ctx) {10        struct data_t data = {};11        data.pid = bpf_get_current_pid_tgid();12        bpf_get_current_comm(&data.comm, sizeof(data.comm));13        events.perf_submit(ctx, &data, sizeof(data));14        return 0;15    }16    `, []string{})17    defer bpfModule.Close()18    kprobe, err := bpfModule.LoadKprobe("hello_world")19    if err != nil {20        fmt.Fprintf(os.Stderr, "Failed to load kprobe: %s21        os.Exit(1)22    }23    if err := bpfModule.AttachKprobe("sys_clone", kprobe, -1); err != nil {24        fmt.Fprintf(os.Stderr, "Failed to attach kprobe: %s25        os.Exit(1)26    }27    table := bpfModule.TableId("events")28    channel := make(chan []byte)29    perfMap, err := bpfModule.InitPerfMap(table, channel, nil)30    if err != nil {31        fmt.Fprintf(os.Stderr, "Failed to init perf map: %s32        os.Exit(1)33    }34    perfMap.Start()35    for {

DataMmapProg

Using AI Code Generation

1import (2func main() {3	fd, err := os.OpenFile("/sys/kernel/debug/tracing/trace_pipe", os.O_RDONLY, 0)4	if err != nil {5		fmt.Println(err)6	}7	defer fd.Close()8	data, err = syscall.Mmap(int(fd.Fd()), 0, 4096, syscall.PROT_READ, syscall.MAP_SHARED)9	if err != nil {10		fmt.Println(err)11	}12	fmt.Println(string(data))13	err = syscall.Munmap(data)14	if err != nil {

DataMmapProg

Using AI Code Generation

1import (2func main() {3	m := bcc.NewModule(`4int hello(void *ctx) {5    bpf_trace_printk("hello, world!\\n");6    return 0;7}8`, []string{})9	defer m.Close()10	fn, err := m.LoadUprobe("hello")11	if err != nil {12		fmt.Fprintf(os.Stderr, "Failed to load hello: %s13		os.Exit(1)14	}15	if err := m.AttachUprobe("/bin/ls", fn, -1); err != nil {16		fmt.Fprintf(os.Stderr, "Failed to attach hello: %s17		os.Exit(1)18	}19	fmt.Println("Hit Ctrl-C to quit")20	ch := make(chan os.Signal, 1)21	signal.Notify(ch, os.Interrupt)22	if err := m.DetachUprobe("/bin/ls", fn); err != nil {23		fmt.Fprintf(os.Stderr, "Failed to detach hello: %s24		os.Exit(1)25	}26}27import (28func main() {29	m := bcc.NewModule(`30int hello(void *ctx) {31    bpf_trace_printk("hello, world!\\n");32    return 0;33}34`, []string{})35	defer m.Close()36	fn, err := m.LoadUprobe("hello")37	if err != nil {38		fmt.Fprintf(os.Stderr, "Failed to load hello: %s39		os.Exit(1)40	}41	if err := m.AttachUprobe("/bin/ls", fn, -1); err != nil {42		fmt.Fprintf(os.Stderr, "Failed to attach hello: %s43		os.Exit(1)44	}45	fmt.Println("Hit Ctrl-C to quit")

DataMmapProg

Using AI Code Generation

1import (2func main() {3	spec, err := ebpf.LoadCollectionSpec("collection.o")4	if err != nil {5		panic(err)6	}7	coll, err := ebpf.NewCollection(spec)8	if err != nil {9		panic(err)10	}11	if !ok {12		panic("Could not find DataMmapProg")13	}14	mapSpec := &ebpf.MapSpec{15	}16	mapObj, err := ebpf.NewMap(mapSpec)17	if err != nil {18		panic(err)19	}20	mapFd := mapObj.FD()21	fds := []int{int(mapFd)}22	buf := make([]byte, 4*len(fds))23	for i, fd := range fds {24		*(*int)(unsafe.Pointer(&buf[i*4])) = fd25	}26	ret, _, err := prog.Call(buf)27	if err != nil {28		panic(err)29	}30	fmt.Println("Program returned", ret)31	ptr, err := mapObj.Lookup(uint32(0))32	if err != nil {33		panic(err)34	}35	fmt.Println("Map value is", *(*uint32)(ptr))36	mapObj.Close()37	coll.Close()38}39import (40func main() {41	spec, err := ebpf.LoadCollectionSpec("collection.o")42	if err != nil {43		panic(err)44	}45	coll, err := ebpf.NewCollection(spec)46	if err != nil {47		panic(err)48	}

DataMmapProg

Using AI Code Generation

1import (2func main() {3    prog, err := ebpf.LoadProgram("ebpf_prog.o", "DataMmapProg")4    if err != nil {5        fmt.Fprintf(os.Stderr, "Failed to load program: %v6        os.Exit(1)7    }8    defer prog.Close()9    m, err := ebpf.NewMap(&ebpf.MapSpec{10    })11    if err != nil {12        fmt.Fprintf(os.Stderr, "Failed to create map: %v13        os.Exit(1)14    }15    defer m.Close()16    err = m.Put(uint32(0), uint32(0x12345678))17    if err != nil {18        fmt.Fprintf(os.Stderr, "Failed to set map value: %v19        os.Exit(1)20    }21    value, err := m.Get(uint32(0))22    if err != nil {23        fmt.Fprintf(os.Stderr, "Failed to get map value: %v24        os.Exit(1)25    }26    fmt.Printf("Map value before call: %d27    _, _, err = prog.Call(nil)28    if err != nil {29        fmt.Fprintf(os.Stderr, "Failed to call program: %v30        os.Exit(1)31    }32    value, err = m.Get(uint32(0))33    if err != nil {34        fmt.Fprintf(os.Stderr, "Failed to get map value: %v35        os.Exit(1)36    }37    fmt.Printf("Map value after call: %d38}39In this example, we have created a map with a single entry. We have set the value of the entry to 305419896 (0x12345678) and

DataMmapProg

Using AI Code Generation

1import (2func main() {3        obj, err := ebpf.LoadCollectionSpecFromReader(bytes.NewReader(prog))4        if err != nil {5                log.Fatal(err)6        }7        defer obj.Close()8        prog, err := obj.LoadPinnedProg("xdp_prog")9        if err != nil {10                log.Fatal(err)11        }12        defer prog.Close()13        if err := prog.AttachXDP(os.Args[1], ebpf.XDPFlags{}); err != nil {14                log.Fatal(err)15        }16        map, err := obj.LoadPinnedMap("data_map")17        if err != nil {18                log.Fatal(err)19        }20        defer map.Close()21        if err := map.Lookup(uint32(0), &value); err != nil {22                log.Fatal(err)23        }24        fmt.Printf("map value: %d25        if err := prog.DetachXDP(os.Args[1]); err != nil {26                log.Fatal(err)27        }28}29import (30func main() {31        obj, err := ebpf.LoadCollectionSpecFromReader(bytes.NewReader(prog))32        if err != nil {33                log.Fatal(err)34        }35        defer obj.Close()36        prog, err := obj.LoadPinnedProg("xdp_prog")37        if err != nil {38                log.Fatal(err)39        }40        defer prog.Close()41        if err := prog.AttachXDP(os.Args[1], ebpf.XDPFlags{}); err != nil {42                log.Fatal(err)43        }44        map, err := obj.LoadPinnedMap("data_map")45        if err != nil {46                log.Fatal(err)47        }

DataMmapProg

Using AI Code Generation

1import (2func main() {3        prog, err := ebpf.LoadProgram("/sys/fs/bpf/xdp_prog")4        if err != nil {5                fmt.Fprintf(os.Stderr, "Failed to load program: %v6                os.Exit(1)7        }8        defer prog.Close()9        mmapedData, err := prog.DataMmapProg()10        if err != nil {11                fmt.Fprintf(os.Stderr, "Failed to get mmaped data: %v12                os.Exit(1)13        }14        defer mmapedData.Close()15        data, err := mmapedData.Data()16        if err != nil {17                fmt.Fprintf(os.Stderr, "Failed to get data: %v

DataMmapProg

Using AI Code Generation

1import (2func main() {3	prog := NewProg()4	prog.Load("test.o")5	sec := prog.Section("maps")6	data := prog.DataMmapProg(sec)7	fmt.Printf("%s", data)8	prog.FreeMmapProg(data)9}10import (11func main() {12	prog := NewProg()13	prog.Load("test.o")14	sec := prog.Section("maps")15	data := prog.DataMmap(sec)16	fmt.Printf("%s", data)17	prog.FreeMmap(data)18}19import (20func main() {21	prog := NewProg()22	prog.Load("test.o")23	sec := prog.Section("maps")24	data := sec.DataMmap()25	fmt.Printf("%s", data)26	sec.FreeMmap(data)27}28import (29func main() {30	prog := NewProg()31	prog.Load("test.o")32	sec := prog.Section("maps")33	data := sec.Data()34	fmt.Printf("%s", data)35}36import (37func main() {38	prog := NewProg()39	prog.Load("test.o")

DataMmapProg

Using AI Code Generation

1import (2func main() {3	file, err := os.OpenFile("1.dat", os.O_RDWR, 0666)4	defer file.Close()5	if err != nil {6		fmt.Println("Error opening file!")7		os.Exit(1)8	}9	fd := file.Fd()10	fileInfo, err := file.Stat()11	if err != nil {12		fmt.Println("Error getting file info!")13		os.Exit(1)14	}15	fileSize := fileInfo.Size()16	data, err := syscall.Mmap(int(fd), 0, int(fileSize), syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED)17	if err != nil {18		fmt.Println("Error mapping memory!")19		os.Exit(1)20	}21	defer syscall.Munmap(data)22}

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