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Unified Diff: content/common/sandbox_seccomp_bpf_linux.cc

Issue 101773003: Linux sandbox: cleanup sandbox-bpf naming. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Address namespace sandbox nits. Created 7 years ago
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Index: content/common/sandbox_seccomp_bpf_linux.cc
diff --git a/content/common/sandbox_seccomp_bpf_linux.cc b/content/common/sandbox_seccomp_bpf_linux.cc
index e1f344db84f6cb56f40658e4cf347566c4144c28..484fe734a09094133f0f98226ed0e8ff56423fb3 100644
--- a/content/common/sandbox_seccomp_bpf_linux.cc
+++ b/content/common/sandbox_seccomp_bpf_linux.cc
@@ -46,18 +46,18 @@
#include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h"
#include "sandbox/linux/services/linux_syscalls.h"
-using playground2::arch_seccomp_data;
-using playground2::ErrorCode;
-using playground2::Sandbox;
-using sandbox::BrokerProcess;
using sandbox::BaselinePolicy;
+using sandbox::BrokerProcess;
+using sandbox::ErrorCode;
+using sandbox::SandboxBPF;
using sandbox::SyscallSets;
+using sandbox::arch_seccomp_data;
namespace content {
namespace {
-void StartSandboxWithPolicy(playground2::SandboxBpfPolicy* policy);
+void StartSandboxWithPolicy(sandbox::SandboxBPFPolicy* policy);
inline bool IsChromeOS() {
#if defined(OS_CHROMEOS)
@@ -141,13 +141,13 @@ intptr_t GpuSIGSYS_Handler(const struct arch_seccomp_data& args,
}
}
-class GpuProcessPolicy : public SandboxBpfBasePolicy {
+class GpuProcessPolicy : public SandboxBPFBasePolicy {
public:
explicit GpuProcessPolicy(void* broker_process)
: broker_process_(broker_process) {}
virtual ~GpuProcessPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
@@ -156,7 +156,8 @@ class GpuProcessPolicy : public SandboxBpfBasePolicy {
};
// Main policy for x86_64/i386. Extended by ArmGpuProcessPolicy.
-ErrorCode GpuProcessPolicy::EvaluateSyscall(Sandbox* sandbox, int sysno) const {
+ErrorCode GpuProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
+ int sysno) const {
switch (sysno) {
case __NR_ioctl:
#if defined(__i386__) || defined(__x86_64__)
@@ -180,7 +181,7 @@ ErrorCode GpuProcessPolicy::EvaluateSyscall(Sandbox* sandbox, int sysno) const {
return ErrorCode(ErrorCode::ERR_ALLOWED);
// Default on the baseline policy.
- return SandboxBpfBasePolicy::EvaluateSyscall(sandbox, sysno);
+ return SandboxBPFBasePolicy::EvaluateSyscall(sandbox, sysno);
}
}
@@ -189,7 +190,7 @@ class GpuBrokerProcessPolicy : public GpuProcessPolicy {
GpuBrokerProcessPolicy() : GpuProcessPolicy(NULL) {}
virtual ~GpuBrokerProcessPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
@@ -199,7 +200,7 @@ class GpuBrokerProcessPolicy : public GpuProcessPolicy {
// x86_64/i386.
// A GPU broker policy is the same as a GPU policy with open and
// openat allowed.
-ErrorCode GpuBrokerProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
+ErrorCode GpuBrokerProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
int sysno) const {
switch (sysno) {
case __NR_access:
@@ -217,7 +218,7 @@ class ArmGpuProcessPolicy : public GpuProcessPolicy {
: GpuProcessPolicy(broker_process), allow_shmat_(allow_shmat) {}
virtual ~ArmGpuProcessPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
@@ -226,7 +227,7 @@ class ArmGpuProcessPolicy : public GpuProcessPolicy {
};
// Generic ARM GPU process sandbox, inheriting from GpuProcessPolicy.
-ErrorCode ArmGpuProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
+ErrorCode ArmGpuProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
int sysno) const {
#if defined(__arm__)
if (allow_shmat_ && sysno == __NR_shmat)
@@ -265,7 +266,7 @@ class ArmGpuBrokerProcessPolicy : public ArmGpuProcessPolicy {
ArmGpuBrokerProcessPolicy() : ArmGpuProcessPolicy(NULL, false) {}
virtual ~ArmGpuBrokerProcessPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
@@ -274,7 +275,7 @@ class ArmGpuBrokerProcessPolicy : public ArmGpuProcessPolicy {
// A GPU broker policy is the same as a GPU policy with open and
// openat allowed.
-ErrorCode ArmGpuBrokerProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
+ErrorCode ArmGpuBrokerProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
int sysno) const {
switch (sysno) {
case __NR_access:
@@ -289,19 +290,19 @@ ErrorCode ArmGpuBrokerProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
// Policy for renderer and worker processes.
// TODO(jln): move to renderer/
-class RendererOrWorkerProcessPolicy : public SandboxBpfBasePolicy {
+class RendererOrWorkerProcessPolicy : public SandboxBPFBasePolicy {
public:
RendererOrWorkerProcessPolicy() {}
virtual ~RendererOrWorkerProcessPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
DISALLOW_COPY_AND_ASSIGN(RendererOrWorkerProcessPolicy);
};
-ErrorCode RendererOrWorkerProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
+ErrorCode RendererOrWorkerProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
int sysno) const {
switch (sysno) {
case __NR_clone:
@@ -349,25 +350,25 @@ ErrorCode RendererOrWorkerProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
}
// Default on the content baseline policy.
- return SandboxBpfBasePolicy::EvaluateSyscall(sandbox, sysno);
+ return SandboxBPFBasePolicy::EvaluateSyscall(sandbox, sysno);
}
}
// Policy for PPAPI plugins.
// TODO(jln): move to ppapi_plugin/.
-class FlashProcessPolicy : public SandboxBpfBasePolicy {
+class FlashProcessPolicy : public SandboxBPFBasePolicy {
public:
FlashProcessPolicy() {}
virtual ~FlashProcessPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
DISALLOW_COPY_AND_ASSIGN(FlashProcessPolicy);
};
-ErrorCode FlashProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
+ErrorCode FlashProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
int sysno) const {
switch (sysno) {
case __NR_clone:
@@ -397,25 +398,25 @@ ErrorCode FlashProcessPolicy::EvaluateSyscall(Sandbox* sandbox,
}
// Default on the baseline policy.
- return SandboxBpfBasePolicy::EvaluateSyscall(sandbox, sysno);
+ return SandboxBPFBasePolicy::EvaluateSyscall(sandbox, sysno);
}
}
-class BlacklistDebugAndNumaPolicy : public SandboxBpfBasePolicy {
+class BlacklistDebugAndNumaPolicy : public SandboxBPFBasePolicy {
public:
BlacklistDebugAndNumaPolicy() {}
virtual ~BlacklistDebugAndNumaPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
DISALLOW_COPY_AND_ASSIGN(BlacklistDebugAndNumaPolicy);
};
-ErrorCode BlacklistDebugAndNumaPolicy::EvaluateSyscall(Sandbox* sandbox,
+ErrorCode BlacklistDebugAndNumaPolicy::EvaluateSyscall(SandboxBPF* sandbox,
int sysno) const {
- if (!Sandbox::IsValidSyscallNumber(sysno)) {
+ if (!SandboxBPF::IsValidSyscallNumber(sysno)) {
// TODO(jln) we should not have to do that in a trivial policy.
return ErrorCode(ENOSYS);
}
@@ -425,12 +426,12 @@ ErrorCode BlacklistDebugAndNumaPolicy::EvaluateSyscall(Sandbox* sandbox,
return ErrorCode(ErrorCode::ERR_ALLOWED);
}
-class AllowAllPolicy : public SandboxBpfBasePolicy {
+class AllowAllPolicy : public SandboxBPFBasePolicy {
public:
AllowAllPolicy() {}
virtual ~AllowAllPolicy() {}
- virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+ virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
int system_call_number) const OVERRIDE;
private:
@@ -440,8 +441,8 @@ class AllowAllPolicy : public SandboxBpfBasePolicy {
// Allow all syscalls.
// This will still deny x32 or IA32 calls in 64 bits mode or
// 64 bits system calls in compatibility mode.
-ErrorCode AllowAllPolicy::EvaluateSyscall(Sandbox*, int sysno) const {
- if (!Sandbox::IsValidSyscallNumber(sysno)) {
+ErrorCode AllowAllPolicy::EvaluateSyscall(SandboxBPF*, int sysno) const {
+ if (!SandboxBPF::IsValidSyscallNumber(sysno)) {
// TODO(jln) we should not have to do that in a trivial policy.
return ErrorCode(ENOSYS);
} else {
@@ -469,7 +470,7 @@ void RunSandboxSanityChecks(const std::string& process_type) {
// open() must be restricted.
syscall_ret = open("/etc/passwd", O_RDONLY);
CHECK_EQ(-1, syscall_ret);
- CHECK_EQ(SandboxBpfBasePolicy::GetFSDeniedErrno(), errno);
+ CHECK_EQ(SandboxBPFBasePolicy::GetFSDeniedErrno(), errno);
// We should never allow the creation of netlink sockets.
syscall_ret = socket(AF_NETLINK, SOCK_DGRAM, 0);
@@ -588,7 +589,7 @@ void InitGpuBrokerProcess(bool for_chromeos_arm,
sandbox_callback = EnableGpuBrokerPolicyCallback;
}
- *broker_process = new BrokerProcess(SandboxBpfBasePolicy::GetFSDeniedErrno(),
+ *broker_process = new BrokerProcess(SandboxBPFBasePolicy::GetFSDeniedErrno(),
read_whitelist,
write_whitelist);
// Initialize the broker process and give it a sandbox callback.
@@ -664,7 +665,7 @@ void StartGpuProcessSandbox(const CommandLine& command_line,
// eventually start a broker process.
WarmupPolicy(chromeos_arm_gpu, &broker_process);
- scoped_ptr<SandboxBpfBasePolicy> gpu_policy;
+ scoped_ptr<SandboxBPFBasePolicy> gpu_policy;
if (chromeos_arm_gpu) {
gpu_policy.reset(new ArmGpuProcessPolicy(broker_process, allow_sysv_shm));
} else {
@@ -674,19 +675,19 @@ void StartGpuProcessSandbox(const CommandLine& command_line,
}
// This function takes ownership of |policy|.
-void StartSandboxWithPolicy(playground2::SandboxBpfPolicy* policy) {
+void StartSandboxWithPolicy(sandbox::SandboxBPFPolicy* policy) {
// Starting the sandbox is a one-way operation. The kernel doesn't allow
// us to unload a sandbox policy after it has been started. Nonetheless,
// in order to make the use of the "Sandbox" object easier, we allow for
// the object to be destroyed after the sandbox has been started. Note that
// doing so does not stop the sandbox.
- Sandbox sandbox;
+ SandboxBPF sandbox;
sandbox.SetSandboxPolicy(policy);
sandbox.StartSandbox();
}
void StartNonGpuSandbox(const std::string& process_type) {
- scoped_ptr<SandboxBpfBasePolicy> policy;
+ scoped_ptr<SandboxBPFBasePolicy> policy;
if (process_type == switches::kRendererProcess ||
process_type == switches::kWorkerProcess) {
@@ -704,7 +705,7 @@ void StartNonGpuSandbox(const std::string& process_type) {
}
// Initialize the seccomp-bpf sandbox.
-bool StartBpfSandbox(const CommandLine& command_line,
+bool StartBPFSandbox(const CommandLine& command_line,
const std::string& process_type) {
if (process_type == switches::kGpuProcess) {
@@ -722,7 +723,7 @@ bool StartBpfSandbox(const CommandLine& command_line,
#endif // SECCOMP_BPF_SANDBOX
// Is seccomp BPF globally enabled?
-bool SandboxSeccompBpf::IsSeccompBpfDesired() {
+bool SandboxSeccompBPF::IsSeccompBPFDesired() {
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
if (!command_line.HasSwitch(switches::kNoSandbox) &&
!command_line.HasSwitch(switches::kDisableSeccompFilterSandbox)) {
@@ -732,7 +733,7 @@ bool SandboxSeccompBpf::IsSeccompBpfDesired() {
}
}
-bool SandboxSeccompBpf::ShouldEnableSeccompBpf(
+bool SandboxSeccompBPF::ShouldEnableSeccompBPF(
const std::string& process_type) {
#if defined(SECCOMP_BPF_SANDBOX)
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
@@ -744,33 +745,33 @@ bool SandboxSeccompBpf::ShouldEnableSeccompBpf(
return false;
}
-bool SandboxSeccompBpf::SupportsSandbox() {
+bool SandboxSeccompBPF::SupportsSandbox() {
#if defined(SECCOMP_BPF_SANDBOX)
// TODO(jln): pass the saved proc_fd_ from the LinuxSandbox singleton
// here.
- Sandbox::SandboxStatus bpf_sandbox_status =
- Sandbox::SupportsSeccompSandbox(-1);
+ SandboxBPF::SandboxStatus bpf_sandbox_status =
+ SandboxBPF::SupportsSeccompSandbox(-1);
// Kernel support is what we are interested in here. Other status
// such as STATUS_UNAVAILABLE (has threads) still indicate kernel support.
// We make this a negative check, since if there is a bug, we would rather
// "fail closed" (expect a sandbox to be available and try to start it).
- if (bpf_sandbox_status != Sandbox::STATUS_UNSUPPORTED) {
+ if (bpf_sandbox_status != SandboxBPF::STATUS_UNSUPPORTED) {
return true;
}
#endif
return false;
}
-bool SandboxSeccompBpf::StartSandbox(const std::string& process_type) {
+bool SandboxSeccompBPF::StartSandbox(const std::string& process_type) {
#if defined(SECCOMP_BPF_SANDBOX)
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
- if (IsSeccompBpfDesired() && // Global switches policy.
- ShouldEnableSeccompBpf(process_type) && // Process-specific policy.
+ if (IsSeccompBPFDesired() && // Global switches policy.
+ ShouldEnableSeccompBPF(process_type) && // Process-specific policy.
SupportsSandbox()) {
// If the kernel supports the sandbox, and if the command line says we
// should enable it, enable it or die.
- bool started_sandbox = StartBpfSandbox(command_line, process_type);
+ bool started_sandbox = StartBPFSandbox(command_line, process_type);
CHECK(started_sandbox);
return true;
}
@@ -778,10 +779,10 @@ bool SandboxSeccompBpf::StartSandbox(const std::string& process_type) {
return false;
}
-bool SandboxSeccompBpf::StartSandboxWithExternalPolicy(
- scoped_ptr<playground2::SandboxBpfPolicy> policy) {
+bool SandboxSeccompBPF::StartSandboxWithExternalPolicy(
+ scoped_ptr<sandbox::SandboxBPFPolicy> policy) {
#if defined(SECCOMP_BPF_SANDBOX)
- if (IsSeccompBpfDesired() && SupportsSandbox()) {
+ if (IsSeccompBPFDesired() && SupportsSandbox()) {
CHECK(policy);
StartSandboxWithPolicy(policy.release());
return true;
@@ -790,12 +791,12 @@ bool SandboxSeccompBpf::StartSandboxWithExternalPolicy(
return false;
}
-scoped_ptr<playground2::SandboxBpfPolicy>
-SandboxSeccompBpf::GetBaselinePolicy() {
+scoped_ptr<sandbox::SandboxBPFPolicy>
+SandboxSeccompBPF::GetBaselinePolicy() {
#if defined(SECCOMP_BPF_SANDBOX)
- return scoped_ptr<playground2::SandboxBpfPolicy>(new BaselinePolicy);
+ return scoped_ptr<sandbox::SandboxBPFPolicy>(new BaselinePolicy);
#else
- return scoped_ptr<playground2::SandboxBpfPolicy>();
+ return scoped_ptr<sandbox::SandboxBPFPolicy>();
#endif // defined(SECCOMP_BPF_SANDBOX)
}
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