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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_PUBLIC_COMMON_SANDBOX_INIT_H_
      6 #define CONTENT_PUBLIC_COMMON_SANDBOX_INIT_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/process/process.h"
     10 #include "build/build_config.h"
     11 #include "content/common/content_export.h"
     12 
     13 namespace base {
     14 class CommandLine;
     15 class FilePath;
     16 }
     17 
     18 namespace sandbox {
     19 namespace bpf_dsl {
     20 class SandboxBPFDSLPolicy;
     21 }
     22 struct SandboxInterfaceInfo;
     23 }
     24 
     25 namespace content {
     26 class SandboxedProcessLauncherDelegate;
     27 
     28 #if defined(OS_WIN)
     29 
     30 // Initialize the sandbox for renderer, gpu, utility, worker, nacl, and plug-in
     31 // processes, depending on the command line flags. Although The browser process
     32 // is not sandboxed, this also needs to be called because it will initialize
     33 // the broker code.
     34 // Returns true if the sandbox was initialized succesfully, false if an error
     35 // occurred.  If process_type isn't one that needs sandboxing true is always
     36 // returned.
     37 CONTENT_EXPORT bool InitializeSandbox(
     38     sandbox::SandboxInterfaceInfo* sandbox_info);
     39 
     40 // This is a restricted version of Windows' DuplicateHandle() function
     41 // that works inside the sandbox and can send handles but not retrieve
     42 // them.  Unlike DuplicateHandle(), it takes a process ID rather than
     43 // a process handle.  It returns true on success, false otherwise.
     44 CONTENT_EXPORT bool BrokerDuplicateHandle(HANDLE source_handle,
     45                                           DWORD target_process_id,
     46                                           HANDLE* target_handle,
     47                                           DWORD desired_access,
     48                                           DWORD options);
     49 
     50 // Inform the current process's sandbox broker (e.g. the broker for
     51 // 32-bit processes) about a process created under a different sandbox
     52 // broker (e.g. the broker for 64-bit processes).  This allows
     53 // BrokerDuplicateHandle() to send handles to a process managed by
     54 // another broker.  For example, it allows the 32-bit renderer to send
     55 // handles to 64-bit NaCl processes.  This returns true on success,
     56 // false otherwise.
     57 CONTENT_EXPORT bool BrokerAddTargetPeer(HANDLE peer_process);
     58 
     59 // Launch a sandboxed process. |delegate| may be NULL. If |delegate| is non-NULL
     60 // then it just has to outlive this method call.
     61 CONTENT_EXPORT base::ProcessHandle StartSandboxedProcess(
     62     SandboxedProcessLauncherDelegate* delegate,
     63     base::CommandLine* cmd_line);
     64 
     65 #elif defined(OS_MACOSX)
     66 
     67 // Initialize the sandbox of the given |sandbox_type|, optionally specifying a
     68 // directory to allow access to. Note specifying a directory needs to be
     69 // supported by the sandbox profile associated with the given |sandbox_type|.
     70 // Valid values for |sandbox_type| are defined either by the enum SandboxType,
     71 // or by ContentClient::GetSandboxProfileForSandboxType().
     72 //
     73 // If the |sandbox_type| isn't one of the ones defined by content then the
     74 // embedder is queried using ContentClient::GetSandboxPolicyForSandboxType().
     75 // The embedder can use values for |sandbox_type| starting from
     76 // sandbox::SANDBOX_PROCESS_TYPE_AFTER_LAST_TYPE.
     77 //
     78 // Returns true if the sandbox was initialized succesfully, false if an error
     79 // occurred.  If process_type isn't one that needs sandboxing, no action is
     80 // taken and true is always returned.
     81 CONTENT_EXPORT bool InitializeSandbox(int sandbox_type,
     82                                       const base::FilePath& allowed_path);
     83 
     84 #elif defined(OS_LINUX)
     85 
     86 class SandboxInitializerDelegate;
     87 
     88 // Initialize a seccomp-bpf sandbox. |policy| may not be NULL.
     89 // Returns true if the sandbox has been properly engaged.
     90 CONTENT_EXPORT bool InitializeSandbox(
     91     scoped_ptr<sandbox::bpf_dsl::SandboxBPFDSLPolicy> policy);
     92 
     93 // Return a "baseline" policy. This is used by a SandboxInitializerDelegate to
     94 // implement a policy that is derived from the baseline.
     95 CONTENT_EXPORT scoped_ptr<sandbox::bpf_dsl::SandboxBPFDSLPolicy>
     96     GetBPFSandboxBaselinePolicy();
     97 #endif  // defined(OS_LINUX)
     98 
     99 }  // namespace content
    100 
    101 #endif  // CONTENT_PUBLIC_COMMON_SANDBOX_INIT_H_
    102