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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "content/common/sandbox_linux/bpf_renderer_policy_linux.h" | 5 #include "content/common/sandbox_linux/bpf_renderer_policy_linux.h" |
| 6 | 6 |
| 7 #include <errno.h> | 7 #include <errno.h> |
| 8 | 8 |
| 9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
| 10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
| 11 #include "content/common/sandbox_linux/sandbox_linux.h" | 11 #include "content/common/sandbox_linux/sandbox_linux.h" |
| 12 #include "sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h" | 12 #include "sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h" |
| 13 #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h" | 13 #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h" |
| 14 #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h" | 14 #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h" |
| 15 #include "sandbox/linux/services/linux_syscalls.h" | 15 #include "sandbox/linux/services/linux_syscalls.h" |
| 16 | 16 |
| 17 using sandbox::SyscallSets; | 17 using sandbox::SyscallSets; |
| 18 | 18 |
| 19 namespace content { | 19 namespace content { |
| 20 | 20 |
| 21 namespace { | |
| 22 | |
| 23 inline bool IsUsingToolKitGtk() { | |
| 24 #if defined(TOOLKIT_GTK) | |
| 25 return true; | |
| 26 #else | |
| 27 return false; | |
| 28 #endif | |
| 29 } | |
| 30 | |
| 31 } // namespace | |
| 32 | |
| 33 RendererProcessPolicy::RendererProcessPolicy() {} | 21 RendererProcessPolicy::RendererProcessPolicy() {} |
| 34 RendererProcessPolicy::~RendererProcessPolicy() {} | 22 RendererProcessPolicy::~RendererProcessPolicy() {} |
| 35 | 23 |
| 36 ErrorCode RendererProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox, | 24 ErrorCode RendererProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox, |
| 37 int sysno) const { | 25 int sysno) const { |
| 38 switch (sysno) { | 26 switch (sysno) { |
| 39 case __NR_clone: | 27 case __NR_clone: |
| 40 return sandbox::RestrictCloneToThreadsAndEPERMFork(sandbox); | 28 return sandbox::RestrictCloneToThreadsAndEPERMFork(sandbox); |
| 41 case __NR_ioctl: | 29 case __NR_ioctl: |
| 42 return sandbox::RestrictIoctl(sandbox); | 30 return sandbox::RestrictIoctl(sandbox); |
| (...skipping 22 matching lines...) Expand all Loading... |
| 65 case __NR_sched_getscheduler: | 53 case __NR_sched_getscheduler: |
| 66 case __NR_sched_setscheduler: | 54 case __NR_sched_setscheduler: |
| 67 case __NR_setpriority: | 55 case __NR_setpriority: |
| 68 case __NR_sysinfo: | 56 case __NR_sysinfo: |
| 69 case __NR_times: | 57 case __NR_times: |
| 70 case __NR_uname: | 58 case __NR_uname: |
| 71 return ErrorCode(ErrorCode::ERR_ALLOWED); | 59 return ErrorCode(ErrorCode::ERR_ALLOWED); |
| 72 case __NR_prlimit64: | 60 case __NR_prlimit64: |
| 73 return ErrorCode(EPERM); // See crbug.com/160157. | 61 return ErrorCode(EPERM); // See crbug.com/160157. |
| 74 default: | 62 default: |
| 75 if (IsUsingToolKitGtk()) { | |
| 76 #if defined(__x86_64__) || defined(__arm__) | |
| 77 if (SyscallSets::IsSystemVSharedMemory(sysno)) | |
| 78 return ErrorCode(ErrorCode::ERR_ALLOWED); | |
| 79 #endif | |
| 80 #if defined(__i386__) | |
| 81 if (SyscallSets::IsSystemVIpc(sysno)) | |
| 82 return ErrorCode(ErrorCode::ERR_ALLOWED); | |
| 83 #endif | |
| 84 } | |
| 85 | |
| 86 // Default on the content baseline policy. | 63 // Default on the content baseline policy. |
| 87 return SandboxBPFBasePolicy::EvaluateSyscall(sandbox, sysno); | 64 return SandboxBPFBasePolicy::EvaluateSyscall(sandbox, sysno); |
| 88 } | 65 } |
| 89 } | 66 } |
| 90 | 67 |
| 91 } // namespace content | 68 } // namespace content |
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