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Merge pull request #3476 from zhlhahaha:1930

Browse Source 
PiperOrigin-RevId: 326563255
This commit is contained in:
gVisor bot
2020-08-13 17:59:00 -07:00
parent 5036f135e4 cdef21c3d5
commit 20be1c0e63
5 changed files with 100 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkg/seccomp/BUILD
+5 -1
View File
@@ -5,7 +5,11 @@ package(licenses = ["notice"])
go_binary(
name = "victim",
testonly = 1,
srcs = ["seccomp_test_victim.go"],
srcs = [
"seccomp_test_victim.go",
"seccomp_test_victim_amd64.go",
"seccomp_test_victim_arm64.go",
],
deps = [":seccomp"],
)
pkg/seccomp/seccomp_test.go
+31 -31
View File
@@ -91,12 +91,12 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "Single syscall allowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Single syscall disallowed",
data: seccompData{nr: 2, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 2, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
},
@@ -125,22 +125,22 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "Multiple rulesets allowed (1a)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0x1}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0x1}},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Multiple rulesets allowed (1b)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Multiple rulesets allowed (2)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Multiple rulesets allowed (2)",
data: seccompData{nr: 0, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 0, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_KILL_THREAD,
},
},
@@ -160,42 +160,42 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "Multiple syscalls allowed (1)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Multiple syscalls allowed (3)",
data: seccompData{nr: 3, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 3, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Multiple syscalls allowed (5)",
data: seccompData{nr: 5, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 5, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Multiple syscalls disallowed (0)",
data: seccompData{nr: 0, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 0, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Multiple syscalls disallowed (2)",
data: seccompData{nr: 2, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 2, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Multiple syscalls disallowed (4)",
data: seccompData{nr: 4, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 4, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Multiple syscalls disallowed (6)",
data: seccompData{nr: 6, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 6, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Multiple syscalls disallowed (100)",
data: seccompData{nr: 100, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 100, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
},
@@ -231,7 +231,7 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "Syscall disallowed, action trap",
data: seccompData{nr: 2, arch: linux.AUDIT_ARCH_X86_64},
data: seccompData{nr: 2, arch: LINUX_AUDIT_ARCH},
want: linux.SECCOMP_RET_TRAP,
},
},
@@ -254,12 +254,12 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "Syscall argument allowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0xf, 0xf}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0xf, 0xf}},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Syscall argument disallowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0xf, 0xe}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0xf, 0xe}},
want: linux.SECCOMP_RET_TRAP,
},
},
@@ -284,12 +284,12 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "Syscall argument allowed, two rules",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0xf}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0xf}},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "Syscall argument allowed, two rules",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0xe}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0xe}},
want: linux.SECCOMP_RET_ALLOW,
},
},
@@ -315,7 +315,7 @@ func TestBasic(t *testing.T) {
desc: "64bit syscall argument allowed",
data: seccompData{
nr: 1,
arch: linux.AUDIT_ARCH_X86_64,
arch: LINUX_AUDIT_ARCH,
args: [6]uint64{0, math.MaxUint64 - 1, math.MaxUint32},
},
want: linux.SECCOMP_RET_ALLOW,
@@ -324,7 +324,7 @@ func TestBasic(t *testing.T) {
desc: "64bit syscall argument disallowed",
data: seccompData{
nr: 1,
arch: linux.AUDIT_ARCH_X86_64,
arch: LINUX_AUDIT_ARCH,
args: [6]uint64{0, math.MaxUint64, math.MaxUint32},
},
want: linux.SECCOMP_RET_TRAP,
@@ -333,7 +333,7 @@ func TestBasic(t *testing.T) {
desc: "64bit syscall argument disallowed",
data: seccompData{
nr: 1,
arch: linux.AUDIT_ARCH_X86_64,
arch: LINUX_AUDIT_ARCH,
args: [6]uint64{0, math.MaxUint64, math.MaxUint32 - 1},
},
want: linux.SECCOMP_RET_TRAP,
@@ -358,32 +358,32 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "GreaterThan: Syscall argument allowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0x10, 0xffffffff}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0x10, 0xffffffff}},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "GreaterThan: Syscall argument disallowed (equal)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0xf, 0xffffffff}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0xf, 0xffffffff}},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "Syscall argument disallowed (smaller)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0x0, 0xffffffff}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0x0, 0xffffffff}},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "GreaterThan2: Syscall argument allowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0x10, 0xfbcd000d}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0x10, 0xfbcd000d}},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "GreaterThan2: Syscall argument disallowed (equal)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0x10, 0xabcd000d}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0x10, 0xabcd000d}},
want: linux.SECCOMP_RET_TRAP,
},
{
desc: "GreaterThan2: Syscall argument disallowed (smaller)",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{0x10, 0xa000ffff}},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{0x10, 0xa000ffff}},
want: linux.SECCOMP_RET_TRAP,
},
},
@@ -405,12 +405,12 @@ func TestBasic(t *testing.T) {
specs: []spec{
{
desc: "IP: Syscall instruction pointer allowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{}, instructionPointer: 0x7aabbccdd},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{}, instructionPointer: 0x7aabbccdd},
want: linux.SECCOMP_RET_ALLOW,
},
{
desc: "IP: Syscall instruction pointer disallowed",
data: seccompData{nr: 1, arch: linux.AUDIT_ARCH_X86_64, args: [6]uint64{}, instructionPointer: 0x711223344},
data: seccompData{nr: 1, arch: LINUX_AUDIT_ARCH, args: [6]uint64{}, instructionPointer: 0x711223344},
want: linux.SECCOMP_RET_TRAP,
},
},
@@ -466,7 +466,7 @@ func TestRandom(t *testing.T) {
t.Fatalf("bpf.Compile() got error: %v", err)
}
for i := uint32(0); i < 200; i++ {
data := seccompData{nr: i, arch: linux.AUDIT_ARCH_X86_64}
data := seccompData{nr: i, arch: LINUX_AUDIT_ARCH}
got, err := bpf.Exec(p, data.asInput())
if err != nil {
t.Errorf("bpf.Exec() got error: %v, for syscall %d", err, i)
pkg/seccomp/seccomp_test_victim.go
+3 -4
View File
@@ -31,7 +31,6 @@ func main() {
syscalls := seccomp.SyscallRules{
syscall.SYS_ACCEPT: {},
syscall.SYS_ARCH_PRCTL: {},
syscall.SYS_BIND: {},
syscall.SYS_BRK: {},
syscall.SYS_CLOCK_GETTIME: {},
@@ -41,7 +40,6 @@ func main() {
syscall.SYS_DUP3: {},
syscall.SYS_EPOLL_CREATE1: {},
syscall.SYS_EPOLL_CTL: {},
syscall.SYS_EPOLL_WAIT: {},
syscall.SYS_EPOLL_PWAIT: {},
syscall.SYS_EXIT: {},
syscall.SYS_EXIT_GROUP: {},
@@ -68,8 +66,6 @@ func main() {
syscall.SYS_MUNLOCK: {},
syscall.SYS_MUNMAP: {},
syscall.SYS_NANOSLEEP: {},
syscall.SYS_NEWFSTATAT: {},
syscall.SYS_OPEN: {},
syscall.SYS_PPOLL: {},
syscall.SYS_PREAD64: {},
syscall.SYS_PSELECT6: {},
@@ -97,6 +93,9 @@ func main() {
syscall.SYS_WRITE: {},
syscall.SYS_WRITEV: {},
}
arch_syscalls(syscalls)
die := *dieFlag
if !die {
syscalls[syscall.SYS_OPENAT] = []seccomp.Rule{
pkg/seccomp/seccomp_test_victim_amd64.go
+32
View File
@@ -0,0 +1,32 @@
// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Test binary used to test that seccomp filters are properly constructed and
// indeed kill the process on violation.
// +build amd64
package main
import (
"gvisor.dev/gvisor/pkg/seccomp"
"syscall"
)
func arch_syscalls(syscalls seccomp.SyscallRules) {
syscalls[syscall.SYS_ARCH_PRCTL] = []seccomp.Rule{}
syscalls[syscall.SYS_EPOLL_WAIT] = []seccomp.Rule{}
syscalls[syscall.SYS_NEWFSTATAT] = []seccomp.Rule{}
syscalls[syscall.SYS_OPEN] = []seccomp.Rule{}
}
pkg/seccomp/seccomp_test_victim_arm64.go
+29
View File
@@ -0,0 +1,29 @@
// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Test binary used to test that seccomp filters are properly constructed and
// indeed kill the process on violation.
// +build arm64
package main
import (
"gvisor.dev/gvisor/pkg/seccomp"
"syscall"
)
func arch_syscalls(syscalls seccomp.SyscallRules) {
syscalls[syscall.SYS_FSTATAT] = []seccomp.Rule{}
}