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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 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_gpu_policy_linux.h" | 5 #include "content/common/sandbox_linux/bpf_gpu_policy_linux.h" |
| 6 | 6 |
| 7 #include <dlfcn.h> | 7 #include <dlfcn.h> |
| 8 #include <errno.h> | 8 #include <errno.h> |
| 9 #include <fcntl.h> | 9 #include <fcntl.h> |
| 10 #include <sys/socket.h> | 10 #include <sys/socket.h> |
| 11 #include <sys/stat.h> | 11 #include <sys/stat.h> |
| 12 #include <sys/types.h> | 12 #include <sys/types.h> |
| 13 #include <unistd.h> | 13 #include <unistd.h> |
| 14 | 14 |
| 15 #include <string> | 15 #include <string> |
| 16 #include <vector> | 16 #include <vector> |
| 17 | 17 |
| 18 #include "base/bind.h" | 18 #include "base/bind.h" |
| 19 #include "base/command_line.h" | 19 #include "base/command_line.h" |
| 20 #include "base/compiler_specific.h" | 20 #include "base/compiler_specific.h" |
| 21 #include "base/logging.h" | 21 #include "base/logging.h" |
| 22 #include "base/memory/scoped_ptr.h" | 22 #include "base/memory/scoped_ptr.h" |
| 23 #include "build/build_config.h" | 23 #include "build/build_config.h" |
| 24 #include "content/common/sandbox_linux/sandbox_bpf_base_policy_linux.h" | 24 #include "content/common/sandbox_linux/sandbox_bpf_base_policy_linux.h" |
| 25 #include "content/common/sandbox_linux/sandbox_seccomp_bpf_linux.h" | 25 #include "content/common/sandbox_linux/sandbox_seccomp_bpf_linux.h" |
| 26 #include "content/common/set_process_title.h" | 26 #include "content/common/set_process_title.h" |
| 27 #include "content/public/common/content_switches.h" | 27 #include "content/public/common/content_switches.h" |
| 28 #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h" | 28 #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h" |
| 29 #include "sandbox/linux/seccomp-bpf/sandbox_bpf.h" | 29 #include "sandbox/linux/seccomp-bpf/sandbox_bpf.h" // for arch_seccomp_data |
| 30 #include "sandbox/linux/services/broker_process.h" | 30 #include "sandbox/linux/services/broker_process.h" |
| 31 #include "sandbox/linux/services/linux_syscalls.h" | 31 #include "sandbox/linux/services/linux_syscalls.h" |
| 32 | 32 |
| 33 using sandbox::BrokerProcess; | 33 using sandbox::BrokerProcess; |
| 34 using sandbox::SyscallSets; | 34 using sandbox::SyscallSets; |
| 35 using sandbox::arch_seccomp_data; | 35 using sandbox::arch_seccomp_data; |
| 36 using sandbox::bpf_dsl::Allow; | 36 using sandbox::bpf_dsl::Allow; |
| 37 using sandbox::bpf_dsl::ResultExpr; | 37 using sandbox::bpf_dsl::ResultExpr; |
| 38 | 38 |
| 39 namespace content { | 39 namespace content { |
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| 110 return -EPERM; | 110 return -EPERM; |
| 111 } | 111 } |
| 112 default: | 112 default: |
| 113 RAW_CHECK(false); | 113 RAW_CHECK(false); |
| 114 return -ENOSYS; | 114 return -ENOSYS; |
| 115 } | 115 } |
| 116 } | 116 } |
| 117 | 117 |
| 118 class GpuBrokerProcessPolicy : public GpuProcessPolicy { | 118 class GpuBrokerProcessPolicy : public GpuProcessPolicy { |
| 119 public: | 119 public: |
| 120 static sandbox::SandboxBPFPolicy* Create() { | 120 static sandbox::bpf_dsl::SandboxBPFDSLPolicy* Create() { |
| 121 return new GpuBrokerProcessPolicy(); | 121 return new GpuBrokerProcessPolicy(); |
| 122 } | 122 } |
| 123 virtual ~GpuBrokerProcessPolicy() {} | 123 virtual ~GpuBrokerProcessPolicy() {} |
| 124 | 124 |
| 125 virtual ResultExpr EvaluateSyscall(int system_call_number) const OVERRIDE; | 125 virtual ResultExpr EvaluateSyscall(int system_call_number) const OVERRIDE; |
| 126 | 126 |
| 127 private: | 127 private: |
| 128 GpuBrokerProcessPolicy() {} | 128 GpuBrokerProcessPolicy() {} |
| 129 DISALLOW_COPY_AND_ASSIGN(GpuBrokerProcessPolicy); | 129 DISALLOW_COPY_AND_ASSIGN(GpuBrokerProcessPolicy); |
| 130 }; | 130 }; |
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| 151 base::CommandLine::ForCurrentProcess()->InitFromArgv(exec); | 151 base::CommandLine::ForCurrentProcess()->InitFromArgv(exec); |
| 152 base::CommandLine::ForCurrentProcess()->AppendSwitchASCII( | 152 base::CommandLine::ForCurrentProcess()->AppendSwitchASCII( |
| 153 switches::kProcessType, "gpu-broker"); | 153 switches::kProcessType, "gpu-broker"); |
| 154 | 154 |
| 155 // Update the process title. The argv was already cached by the call to | 155 // Update the process title. The argv was already cached by the call to |
| 156 // SetProcessTitleFromCommandLine in content_main_runner.cc, so we can pass | 156 // SetProcessTitleFromCommandLine in content_main_runner.cc, so we can pass |
| 157 // NULL here (we don't have the original argv at this point). | 157 // NULL here (we don't have the original argv at this point). |
| 158 SetProcessTitleFromCommandLine(NULL); | 158 SetProcessTitleFromCommandLine(NULL); |
| 159 } | 159 } |
| 160 | 160 |
| 161 bool UpdateProcessTypeAndEnableSandbox( | 161 bool UpdateProcessTypeAndEnableSandbox(sandbox::bpf_dsl::SandboxBPFDSLPolicy* ( |
| 162 sandbox::SandboxBPFPolicy* (*broker_sandboxer_allocator)(void)) { | 162 *broker_sandboxer_allocator)(void)) { |
| 163 DCHECK(broker_sandboxer_allocator); | 163 DCHECK(broker_sandboxer_allocator); |
| 164 UpdateProcessTypeToGpuBroker(); | 164 UpdateProcessTypeToGpuBroker(); |
| 165 return SandboxSeccompBPF::StartSandboxWithExternalPolicy( | 165 return SandboxSeccompBPF::StartSandboxWithExternalPolicy( |
| 166 make_scoped_ptr(broker_sandboxer_allocator())); | 166 make_scoped_ptr(broker_sandboxer_allocator())); |
| 167 } | 167 } |
| 168 | 168 |
| 169 } // namespace | 169 } // namespace |
| 170 | 170 |
| 171 GpuProcessPolicy::GpuProcessPolicy() : broker_process_(NULL) {} | 171 GpuProcessPolicy::GpuProcessPolicy() : broker_process_(NULL) {} |
| 172 | 172 |
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| 233 dlopen(I965DrvVideoPath, RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE); | 233 dlopen(I965DrvVideoPath, RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE); |
| 234 dlopen("libva.so.1", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE); | 234 dlopen("libva.so.1", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE); |
| 235 dlopen("libva-x11.so.1", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE); | 235 dlopen("libva-x11.so.1", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE); |
| 236 } | 236 } |
| 237 } | 237 } |
| 238 | 238 |
| 239 return true; | 239 return true; |
| 240 } | 240 } |
| 241 | 241 |
| 242 void GpuProcessPolicy::InitGpuBrokerProcess( | 242 void GpuProcessPolicy::InitGpuBrokerProcess( |
| 243 sandbox::SandboxBPFPolicy* (*broker_sandboxer_allocator)(void), | 243 sandbox::bpf_dsl::SandboxBPFDSLPolicy* (*broker_sandboxer_allocator)(void), |
| 244 const std::vector<std::string>& read_whitelist_extra, | 244 const std::vector<std::string>& read_whitelist_extra, |
| 245 const std::vector<std::string>& write_whitelist_extra) { | 245 const std::vector<std::string>& write_whitelist_extra) { |
| 246 static const char kDriRcPath[] = "/etc/drirc"; | 246 static const char kDriRcPath[] = "/etc/drirc"; |
| 247 static const char kDriCard0Path[] = "/dev/dri/card0"; | 247 static const char kDriCard0Path[] = "/dev/dri/card0"; |
| 248 | 248 |
| 249 CHECK(broker_process_ == NULL); | 249 CHECK(broker_process_ == NULL); |
| 250 | 250 |
| 251 // All GPU process policies need these files brokered out. | 251 // All GPU process policies need these files brokered out. |
| 252 std::vector<std::string> read_whitelist; | 252 std::vector<std::string> read_whitelist; |
| 253 read_whitelist.push_back(kDriCard0Path); | 253 read_whitelist.push_back(kDriCard0Path); |
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| 267 broker_process_ = new BrokerProcess(GetFSDeniedErrno(), | 267 broker_process_ = new BrokerProcess(GetFSDeniedErrno(), |
| 268 read_whitelist, | 268 read_whitelist, |
| 269 write_whitelist); | 269 write_whitelist); |
| 270 // The initialization callback will perform generic initialization and then | 270 // The initialization callback will perform generic initialization and then |
| 271 // call broker_sandboxer_callback. | 271 // call broker_sandboxer_callback. |
| 272 CHECK(broker_process_->Init(base::Bind(&UpdateProcessTypeAndEnableSandbox, | 272 CHECK(broker_process_->Init(base::Bind(&UpdateProcessTypeAndEnableSandbox, |
| 273 broker_sandboxer_allocator))); | 273 broker_sandboxer_allocator))); |
| 274 } | 274 } |
| 275 | 275 |
| 276 } // namespace content | 276 } // namespace content |
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