ppapi/c/private/ppb_nacl_private.h

   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
   6 /* From private/ppb_nacl_private.idl modified Thu Aug 21 11:14:10 2014. */
   7
   8 #ifndef PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_
   9 #define PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_
  10
  11 #include "ppapi/c/pp_bool.h"
  12 #include "ppapi/c/pp_completion_callback.h"
  13 #include "ppapi/c/pp_instance.h"
  14 #include "ppapi/c/pp_macros.h"
  15 #include "ppapi/c/pp_stdint.h"
  16 #include "ppapi/c/pp_var.h"
  17 #include "ppapi/c/private/ppp_pexe_stream_handler.h"
  18
  19 #define PPB_NACL_PRIVATE_INTERFACE_1_0 "PPB_NaCl_Private;1.0"
  20 #define PPB_NACL_PRIVATE_INTERFACE PPB_NACL_PRIVATE_INTERFACE_1_0
  21
  22 /**
  23  * @file
  24  * This file contains NaCl private interfaces. This interface is not versioned
  25  * and is for internal Chrome use. It may change without notice. */
  26
  27
  28 #include "ppapi/c/private/pp_file_handle.h"
  29 #include "ppapi/c/private/ppb_instance_private.h"
  30
  31 /**
  32  * @addtogroup Enums
  33  * @{
  34  */
  35 /** NaCl-specific errors that should be reported to the user.
  36  *  These error codes are reported via UMA so, if you edit them:
  37  *   1) make sure you understand UMA first.
  38  *   2) update src/tools/metrics/histograms/histograms.xml
  39  *  Values are explicitly specified to make sure they don't shift around when
  40  *  edited, and also to make reading about:histograms easier.
  41  */
  42 typedef enum {
  43   PP_NACL_ERROR_LOAD_SUCCESS = 0,
  44   PP_NACL_ERROR_LOAD_ABORTED = 1,
  45   PP_NACL_ERROR_UNKNOWN = 2,
  46   PP_NACL_ERROR_MANIFEST_RESOLVE_URL = 3,
  47   PP_NACL_ERROR_MANIFEST_LOAD_URL = 4,
  48   PP_NACL_ERROR_MANIFEST_STAT = 5,
  49   PP_NACL_ERROR_MANIFEST_TOO_LARGE = 6,
  50   PP_NACL_ERROR_MANIFEST_OPEN = 7,
  51   PP_NACL_ERROR_MANIFEST_MEMORY_ALLOC = 8,
  52   PP_NACL_ERROR_MANIFEST_READ = 9,
  53   PP_NACL_ERROR_MANIFEST_PARSING = 10,
  54   PP_NACL_ERROR_MANIFEST_SCHEMA_VALIDATE = 11,
  55   PP_NACL_ERROR_MANIFEST_GET_NEXE_URL = 12,
  56   PP_NACL_ERROR_NEXE_LOAD_URL = 13,
  57   PP_NACL_ERROR_NEXE_ORIGIN_PROTOCOL = 14,
  58   PP_NACL_ERROR_NEXE_FH_DUP = 15,
  59   PP_NACL_ERROR_NEXE_STAT = 16,
  60   PP_NACL_ERROR_ELF_CHECK_IO = 17,
  61   PP_NACL_ERROR_ELF_CHECK_FAIL = 18,
  62   PP_NACL_ERROR_SEL_LDR_INIT = 19,
  63   PP_NACL_ERROR_SEL_LDR_CREATE_LAUNCHER = 20,
  64   PP_NACL_ERROR_SEL_LDR_FD = 21,
  65   PP_NACL_ERROR_SEL_LDR_LAUNCH = 22,
  66   /* Deprecated, safe to reuse the value because it's never logged in UMA.
  67    */
  68   PP_NACL_ERROR_SEL_LDR_SEND_NEXE = 24,
  69   PP_NACL_ERROR_SEL_LDR_HANDLE_PASSING = 25,
  70   PP_NACL_ERROR_SEL_LDR_START_MODULE = 26,
  71   PP_NACL_ERROR_SEL_LDR_START_STATUS = 27,
  72   PP_NACL_ERROR_SRPC_CONNECTION_FAIL = 28,
  73   PP_NACL_ERROR_START_PROXY_CHECK_PPP = 29,
  74   PP_NACL_ERROR_START_PROXY_ALLOC = 30,
  75   PP_NACL_ERROR_START_PROXY_MODULE = 31,
  76   PP_NACL_ERROR_START_PROXY_INSTANCE = 32,
  77   PP_NACL_ERROR_SEL_LDR_COMMUNICATION_CMD_CHANNEL = 33,
  78   PP_NACL_ERROR_SEL_LDR_COMMUNICATION_REV_SETUP = 34,
  79   PP_NACL_ERROR_SEL_LDR_COMMUNICATION_WRAPPER = 35,
  80   PP_NACL_ERROR_SEL_LDR_COMMUNICATION_REV_SERVICE = 36,
  81   PP_NACL_ERROR_START_PROXY_CRASH = 37,
  82   PP_NACL_ERROR_MANIFEST_PROGRAM_MISSING_ARCH = 38,
  83   PP_NACL_ERROR_PNACL_CACHE_OPEN_INPROGRESS = 39,
  84   PP_NACL_ERROR_PNACL_CACHE_OPEN_NOACCESS = 40,
  85   PP_NACL_ERROR_PNACL_CACHE_OPEN_NOQUOTA = 41,
  86   PP_NACL_ERROR_PNACL_CACHE_OPEN_NOSPACE = 42,
  87   PP_NACL_ERROR_PNACL_CACHE_OPEN_OTHER = 43,
  88   PP_NACL_ERROR_PNACL_CACHE_DIRECTORY_CREATE = 44,
  89   PP_NACL_ERROR_PNACL_CACHE_FILEOPEN_NOACCESS = 45,
  90   PP_NACL_ERROR_PNACL_CACHE_FILEOPEN_NOQUOTA = 46,
  91   PP_NACL_ERROR_PNACL_CACHE_FILEOPEN_NOSPACE = 47,
  92   PP_NACL_ERROR_PNACL_CACHE_FILEOPEN_NOTAFILE = 48,
  93   PP_NACL_ERROR_PNACL_CACHE_FILEOPEN_OTHER = 49,
  94   PP_NACL_ERROR_PNACL_CACHE_FETCH_NOACCESS = 50,
  95   PP_NACL_ERROR_PNACL_CACHE_FETCH_NOTFOUND = 51,
  96   PP_NACL_ERROR_PNACL_CACHE_FETCH_OTHER = 52,
  97   PP_NACL_ERROR_PNACL_CACHE_FINALIZE_COPY_NOQUOTA = 53,
  98   PP_NACL_ERROR_PNACL_CACHE_FINALIZE_COPY_NOSPACE = 54,
  99   PP_NACL_ERROR_PNACL_CACHE_FINALIZE_COPY_OTHER = 55,
 100   PP_NACL_ERROR_PNACL_CACHE_FINALIZE_RENAME_NOACCESS = 56,
 101   PP_NACL_ERROR_PNACL_CACHE_FINALIZE_RENAME_OTHER = 57,
 102   PP_NACL_ERROR_PNACL_RESOURCE_FETCH = 58,
 103   PP_NACL_ERROR_PNACL_PEXE_FETCH_ABORTED = 59,
 104   PP_NACL_ERROR_PNACL_PEXE_FETCH_NOACCESS = 60,
 105   PP_NACL_ERROR_PNACL_PEXE_FETCH_OTHER = 61,
 106   PP_NACL_ERROR_PNACL_THREAD_CREATE = 62,
 107   PP_NACL_ERROR_PNACL_LLC_SETUP = 63,
 108   PP_NACL_ERROR_PNACL_LD_SETUP = 64,
 109   PP_NACL_ERROR_PNACL_LLC_INTERNAL = 65,
 110   PP_NACL_ERROR_PNACL_LD_INTERNAL = 66,
 111   PP_NACL_ERROR_PNACL_CREATE_TEMP = 67,
 112   /* This entry is no longer used, but should not be removed, because UMA
 113    */
 114   PP_NACL_ERROR_PNACL_NOT_ENABLED = 68,
 115   PP_NACL_ERROR_MANIFEST_NOACCESS_URL = 69,
 116   PP_NACL_ERROR_NEXE_NOACCESS_URL = 70,
 117   PP_NACL_ERROR_PNACL_CRASH_THROTTLED = 71,
 118   /* If you add a code, read the enum comment above on how to update
 119    */
 120   PP_NACL_ERROR_MAX
 121 } PP_NaClError;
 122
 123 /** Event types that NaCl may use when reporting load progress or errors. */
 124 typedef enum {
 125   PP_NACL_EVENT_LOADSTART,
 126   PP_NACL_EVENT_PROGRESS,
 127   PP_NACL_EVENT_ERROR,
 128   PP_NACL_EVENT_ABORT,
 129   PP_NACL_EVENT_LOAD,
 130   PP_NACL_EVENT_LOADEND,
 131   PP_NACL_EVENT_CRASH
 132 } PP_NaClEventType;
 133
 134 typedef enum {
 135   PP_SCHEME_CHROME_EXTENSION,
 136   PP_SCHEME_DATA,
 137   PP_SCHEME_OTHER
 138 } PP_UrlSchemeType;
 139
 140 typedef enum {
 141   /* The trusted plugin begins in this ready state. */
 142   PP_NACL_READY_STATE_UNSENT = 0,
 143   /* The manifest file has been requested, but not yet received. */
 144   PP_NACL_READY_STATE_OPENED = 1,
 145   /* The manifest file has been received and the nexe successfully requested. */
 146   PP_NACL_READY_STATE_LOADING = 3,
 147   /* The nexe has been loaded and the proxy started, so it is ready for
 148    */
 149   PP_NACL_READY_STATE_DONE = 4
 150 } PP_NaClReadyState;
 151 /**
 152  * @}
 153  */
 154
 155 /**
 156  * @addtogroup Structs
 157  * @{
 158  */
 159 struct PP_PNaClOptions {
 160   PP_Bool translate;
 161   PP_Bool is_debug;
 162   int32_t opt_level;
 163 };
 164 /**
 165  * @}
 166  */
 167
 168 /**
 169  * @addtogroup Typedefs
 170  * @{
 171  */
 172 /* Callback invoked upon completion of PPP_ManifestService::OpenResource(). */
 173 typedef void (*PP_OpenResourceCompletionCallback)(void* user_data,
 174                                                   PP_FileHandle file_handle);
 175 /**
 176  * @}
 177  */
 178
 179 /**
 180  * @addtogroup Structs
 181  * @{
 182  */
 183 /* Corresponds to NaClFileInfo in
 184  * native_client/src/trusted/validator/nacl_file_info.h */
 185 struct PP_NaClFileInfo {
 186   PP_FileHandle handle;
 187   /* See NaClFileToken comment in nacl_file_info.h */
 188   uint64_t token_lo;
 189   uint64_t token_hi;
 190 };
 191 /**
 192  * @}
 193  */
 194
 195 /**
 196  * @addtogroup Interfaces
 197  * @{
 198  */
 199 /* PPB_NaCl_Private */
 200 struct PPB_NaCl_Private_1_0 {
 201   /* Launches NaCl's sel_ldr process.  Returns PP_EXTERNAL_PLUGIN_OK on success
 202    * and writes a NaClHandle to imc_handle. Returns PP_EXTERNAL_PLUGIN_FAILED on
 203    * failure. The |enable_ppapi_dev| parameter controls whether GetInterface
 204    * returns 'Dev' interfaces to the NaCl plugin.  The |uses_ppapi| flag
 205    * indicates that the nexe run by sel_ldr will use the PPAPI APIs.
 206    * This implies that LaunchSelLdr is run from the main thread.  If a nexe
 207    * does not need PPAPI, then it can run off the main thread.
 208    * The |nexe_file_info| is currently used only in non-SFI mode. It is the
 209    * file handle for the main nexe file, which should be initially loaded.
 210    * LaunchSelLdr takes the ownership of the file handle.
 211    * The |uses_irt| flag indicates whether the IRT should be loaded in this
 212    * NaCl process.  This is true for ABI stable nexes.
 213    * The |uses_nonsfi_mode| flag indicates whether or not nonsfi-mode should
 214    * be used with the binary pointed by the url.
 215    * The |enable_dyncode_syscalls| flag indicates whether or not the nexe
 216    * will be able to use dynamic code system calls (e.g., mmap with PROT_EXEC).
 217    * The |enable_exception_handling| flag indicates whether or not the nexe
 218    * will be able to use hardware exception handling.
 219    * The |enable_crash_throttling| flag indicates whether or not crashes of
 220    * the nexe contribute to crash throttling statisics and whether nexe starts
 221    * are throttled by crash throttling.
 222    */
 223   void (*LaunchSelLdr)(PP_Instance instance,
 224                        PP_Bool main_service_runtime,
 225                        const char* alleged_url,
 226                        const struct PP_NaClFileInfo* nexe_file_info,
 227                        PP_Bool uses_irt,
 228                        PP_Bool uses_ppapi,
 229                        PP_Bool uses_nonsfi_mode,
 230                        PP_Bool enable_ppapi_dev,
 231                        PP_Bool enable_dyncode_syscalls,
 232                        PP_Bool enable_exception_handling,
 233                        PP_Bool enable_crash_throttling,
 234                        void* imc_handle,
 235                        struct PP_CompletionCallback callback);
 236   /* This function starts the IPC proxy so the nexe can communicate with the
 237    * browser.
 238    */
 239   PP_Bool (*StartPpapiProxy)(PP_Instance instance);
 240   /* On POSIX systems, this function returns the file descriptor of
 241    * /dev/urandom.  On non-POSIX systems, this function returns 0.
 242    */
 243   int32_t (*UrandomFD)(void);
 244   /* Whether the Pepper 3D interfaces should be disabled in the NaCl PPAPI
 245    * proxy. This is so paranoid admins can effectively prevent untrusted shader
 246    * code to be processed by the graphics stack.
 247    */
 248   PP_Bool (*Are3DInterfacesDisabled)(void);
 249   /* This is Windows-specific.  This is a replacement for DuplicateHandle() for
 250    * use inside the Windows sandbox.  Note that we provide this via dependency
 251    * injection only to avoid the linkage problems that occur because the NaCl
 252    * plugin is built as a separate DLL/DSO
 253    * (see http://code.google.com/p/chromium/issues/detail?id=114439#c8).
 254    */
 255   int32_t (*BrokerDuplicateHandle)(PP_FileHandle source_handle,
 256                                    uint32_t process_id,
 257                                    PP_FileHandle* target_handle,
 258                                    uint32_t desired_access,
 259                                    uint32_t options);
 260   /* Returns a read-only (but executable) file descriptor / file info for
 261    * a url for pnacl translator tools. Returns an invalid handle on failure.
 262    */
 263   void (*GetReadExecPnaclFd)(const char* url,
 264                              struct PP_NaClFileInfo* out_file_info);
 265   /* This creates a temporary file that will be deleted by the time
 266    * the last handle is closed (or earlier on POSIX systems), and
 267    * returns a posix handle to that temporary file.
 268    */
 269   PP_FileHandle (*CreateTemporaryFile)(PP_Instance instance);
 270   /* Return the number of processors in the system as reported by the OS */
 271   int32_t (*GetNumberOfProcessors)(void);
 272   /* Return whether the non-SFI mode is enabled. */
 273   PP_Bool (*IsNonSFIModeEnabled)(void);
 274   /* Report to the browser that translation of the pexe for |instance|
 275    * has finished, or aborted with an error. If |success| is true, the
 276    * browser may then store the translation in the cache. The renderer
 277    * must first have called GetNexeFd for the same instance. (The browser is
 278    * not guaranteed to store the nexe even if |success| is true; if there is
 279    * an error on the browser side, or the file is too big for the cache, or
 280    * the browser is in incognito mode, no notification will be delivered to
 281    * the plugin.)
 282    */
 283   void (*ReportTranslationFinished)(PP_Instance instance,
 284                                     PP_Bool success,
 285                                     int32_t opt_level,
 286                                     int64_t pexe_size,
 287                                     int64_t compile_time_us);
 288   /* Dispatch a progress event on the DOM element where the given instance is
 289    * embedded.
 290    */
 291   void (*DispatchEvent)(PP_Instance instance,
 292                         PP_NaClEventType event_type,
 293                         const char* resource_url,
 294                         PP_Bool length_is_computable,
 295                         uint64_t loaded_bytes,
 296                         uint64_t total_bytes);
 297   /* Report that the nexe loaded successfully. */
 298   void (*ReportLoadSuccess)(PP_Instance instance,
 299                             uint64_t loaded_bytes,
 300                             uint64_t total_bytes);
 301   /* Report an error that occured while attempting to load a nexe. */
 302   void (*ReportLoadError)(PP_Instance instance,
 303                           PP_NaClError error,
 304                           const char* error_message);
 305   /* Reports that loading a nexe was aborted. */
 306   void (*ReportLoadAbort)(PP_Instance instance);
 307   /* Reports that the nexe has crashed. */
 308   void (*NexeDidCrash)(PP_Instance instance);
 309   /* Performs internal setup when an instance is created. */
 310   void (*InstanceCreated)(PP_Instance instance);
 311   /* Performs internal cleanup when an instance is destroyed. */
 312   void (*InstanceDestroyed)(PP_Instance instance);
 313   /* Return true if the NaCl debug stub is enabled and the app loaded from
 314    * alleged_nmf_url will be attached to a debugger.
 315    */
 316   PP_Bool (*NaClDebugEnabledForURL)(const char* alleged_nmf_url);
 317   /* Returns the kind of SFI sandbox implemented by NaCl on this
 318    * platform.
 319    */
 320   const char* (*GetSandboxArch)(void);
 321   /* Logs the message to the console. */
 322   void (*LogToConsole)(PP_Instance instance, const char* message);
 323   /* Returns the NaCl readiness status for this instance. */
 324   PP_NaClReadyState (*GetNaClReadyState)(PP_Instance instance);
 325   /* Logs the message via VLOG. */
 326   void (*Vlog)(const char* message);
 327   /* Initializes internal state for a NaCl plugin. */
 328   void (*InitializePlugin)(PP_Instance instance,
 329                            uint32_t argc,
 330                            const char* argn[],
 331                            const char* argv[]);
 332   /* Returns the size of the nexe. */
 333   int64_t (*GetNexeSize)(PP_Instance instance);
 334   /* Requests the NaCl manifest specified in the plugin arguments. */
 335   void (*RequestNaClManifest)(PP_Instance instance,
 336                               struct PP_CompletionCallback callback);
 337   struct PP_Var (*GetManifestBaseURL)(PP_Instance instance);
 338   /* Processes the NaCl manifest once it's been retrieved.
 339    * TODO(teravest): Move the rest of the supporting logic out of the trusted
 340    * plugin.
 341    */
 342   void (*ProcessNaClManifest)(PP_Instance instance, const char* program_url);
 343   PP_Bool (*DevInterfacesEnabled)(PP_Instance instance);
 344   PP_Bool (*GetManifestProgramURL)(PP_Instance instance,
 345                                    struct PP_Var* full_url,
 346                                    struct PP_PNaClOptions* pnacl_options,
 347                                    PP_Bool* uses_nonsfi_mode);
 348   /* Returns the filenames for the llc and ld tools. */
 349   PP_Bool (*GetPnaclResourceInfo)(PP_Instance instance,
 350                                   struct PP_Var* llc_tool_name,
 351                                   struct PP_Var* ld_tool_name);
 352   /* PP_Var string of attributes describing the CPU features supported
 353    * by the current architecture. The string is a comma-delimited list
 354    * of attributes supported by LLVM in its -mattr= option:
 355    *   http://llvm.org/docs/CommandGuide/llc.html#cmdoption-mattr */
 356   struct PP_Var (*GetCpuFeatureAttrs)(void);
 357   /* Posts a message to the JavaScript object for the given instance.
 358    * This method may be called on any thread.
 359    */
 360   void (*PostMessageToJavaScript)(PP_Instance instance, const char* message);
 361   /* Downloads the .nexe file at the given URL to a file, and sets |file_info|
 362    * to information for a handle to a file containing its contents.
 363    * If metadata for identity-based validation caching is available
 364    * then it sets token information in |file_info| (otherwise left untouched).
 365    */
 366   void (*DownloadNexe)(PP_Instance instance,
 367                        const char* url,
 368                        struct PP_NaClFileInfo* file_info,
 369                        struct PP_CompletionCallback callback);
 370   /* Reports the status of sel_ldr for UMA reporting.
 371    * |max_status| has to be provided because the implementation of this
 372    * interface can't access the NaClErrorCode enum.
 373    */
 374   void (*ReportSelLdrStatus)(PP_Instance instance,
 375                              int32_t load_status,
 376                              int32_t max_status);
 377   /* Logs time taken by an operation to UMA histograms.
 378    * This function is safe to call on any thread.
 379    */
 380   void (*LogTranslateTime)(const char* histogram_name, int64_t time_us);
 381   /* Opens a manifest entry for the given instance. If this is for a helper
 382    * process, we consult our internal pnacl.json instead of the user-supplied
 383    * NMF.
 384    * Fails for files which require PNaCl translation.
 385    */
 386   void (*OpenManifestEntry)(PP_Instance instance,
 387                             PP_Bool is_helper_process,
 388                             const char* key,
 389                             struct PP_NaClFileInfo* file_info,
 390                             struct PP_CompletionCallback callback);
 391   /* Sets the start time for PNaCl downloading and translation to the current
 392    * time.
 393    */
 394   void (*SetPNaClStartTime)(PP_Instance instance);
 395   /* Downloads and streams a pexe file for PNaCl translation.
 396    * Fetches the content at |pexe_url| for the given instance and opt_level.
 397    * If a translated cached nexe is already available, |cache_hit_handle|
 398    * is set and |cache_hit_callback| is called.
 399    * Otherwise, |stream_callback| is called repeatedly with blocks of data
 400    * as they are received. |stream_finished_callback| is called after all
 401    * data has been received and dispatched to |stream_callback|.
 402    */
 403   void (*StreamPexe)(PP_Instance instance,
 404                      const char* pexe_url,
 405                      int32_t opt_level,
 406                      const struct PPP_PexeStreamHandler_1_0* stream_handler,
 407                      void* stream_handler_user_data);
 408 };
 409
 410 typedef struct PPB_NaCl_Private_1_0 PPB_NaCl_Private;
 411 /**
 412  * @}
 413  */
 414
 415 #endif  /* PPAPI_C_PRIVATE_PPB_NACL_PRIVATE_H_ */
 416