MediaPluginHost::MediaPluginHost() {
MOZ_COUNT_CTOR(MediaPluginHost);
const char* name = GetOmxLibraryName();
ALOG("Loading OMX Plugin: %s", name ? name : "nullptr");
if (name) {
char *path = PR_GetLibraryFilePathname("libxul.so", (PRFuncPtr) GetOmxLibraryName);
PRLibrary *lib = NULL;
if (path) {
nsAutoCString libpath(path);
PR_Free(path);
int32_t slash = libpath.RFindChar('/');
if (slash != kNotFound) {
libpath.Truncate(slash + 1);
libpath.Append(name);
lib = PR_LoadLibrary(libpath.get());
}
}
if (!lib)
lib = PR_LoadLibrary(name);
if (lib) {
Manifest *manifest = static_cast<Manifest *>(PR_FindSymbol(lib, "MPAPI_MANIFEST"));
if (manifest) {
mPlugins.AppendElement(manifest);
ALOG("OMX plugin successfully loaded");
}
}
}
}
/* static */ bool
FFVPXRuntimeLinker::Link()
{
if (sLinkStatus) {
return sLinkStatus == LinkStatus_SUCCEEDED;
}
MOZ_ASSERT(NS_IsMainThread());
// We retrieve the path of the XUL library as this is where mozavcodec and
// mozavutil libs are located.
char* path =
PR_GetLibraryFilePathname(XUL_DLL, (PRFuncPtr)&FFVPXRuntimeLinker::Link);
if (!path) {
return false;
}
nsCOMPtr<nsIFile> xulFile = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID);
if (!xulFile ||
NS_FAILED(xulFile->InitWithNativePath(nsDependentCString(path)))) {
PR_Free(path);
return false;
}
PR_Free(path);
nsCOMPtr<nsIFile> rootDir;
if (NS_FAILED(xulFile->GetParent(getter_AddRefs(rootDir))) || !rootDir) {
return false;
}
nsAutoCString rootPath;
if (NS_FAILED(rootDir->GetNativePath(rootPath))) {
return false;
}
char* libname = NULL;
/* Get the platform-dependent library name of the module */
libname = PR_GetLibraryName(rootPath.get(), "mozavutil");
if (!libname) {
return false;
}
sLinkedUtilLib = MozAVLink(libname);
PR_FreeLibraryName(libname);
libname = PR_GetLibraryName(rootPath.get(), "mozavcodec");
if (libname) {
sLinkedLib = MozAVLink(libname);
PR_FreeLibraryName(libname);
if (sLinkedLib && sLinkedUtilLib) {
if (Bind("mozavcodec")) {
sLinkStatus = LinkStatus_SUCCEEDED;
return true;
}
}
}
Unlink();
sLinkStatus = LinkStatus_FAILED;
return false;
}
PRLibrary*
PORT_LoadLibraryFromOrigin(const char* existingShLibName,
PRFuncPtr staticShLibFunc,
const char* newShLibName)
{
PRLibrary* lib = NULL;
char* fullPath = NULL;
PRLibSpec libSpec;
/* Get the pathname for existingShLibName, e.g. /usr/lib/libnss3.so
* PR_GetLibraryFilePathname works with either the base library name or a
* function pointer, depending on the platform.
* We require the address of a function in the "reference library",
* provided by the caller. To avoid getting the address of the stub/thunk
* of an exported function by accident, use the address of a static
* function rather than an exported function.
*/
fullPath = PR_GetLibraryFilePathname(existingShLibName,
staticShLibFunc);
if (fullPath) {
lib = loader_LoadLibInReferenceDir(fullPath, newShLibName);
#ifdef XP_UNIX
if (!lib) {
/*
* If fullPath is a symbolic link, resolve the symbolic
* link and try again.
*/
char* originalfullPath = loader_GetOriginalPathname(fullPath);
if (originalfullPath) {
PR_Free(fullPath);
fullPath = originalfullPath;
lib = loader_LoadLibInReferenceDir(fullPath, newShLibName);
}
}
#endif
PR_Free(fullPath);
}
if (!lib) {
#ifdef DEBUG_LOADER
PR_fprintf(PR_STDOUT, "\nAttempting to load %s\n", newShLibName);
#endif
libSpec.type = PR_LibSpec_Pathname;
libSpec.value.pathname = newShLibName;
lib = PR_LoadLibraryWithFlags(libSpec, PR_LD_NOW | PR_LD_LOCAL);
}
if (NULL == lib) {
#ifdef DEBUG_LOADER
PR_fprintf(PR_STDOUT, "\nLoading failed : %s.\n", newShLibName);
#endif
}
return lib;
}
static PRLibrary*
loader_LoadLibrary(const char* nameToLoad)
{
PRLibrary* lib = NULL;
char* fullPath = NULL;
PRLibSpec libSpec;
/* Get the pathname for nameOfAlreadyLoadedLib, i.e. /usr/lib/libnss3.so
* PR_GetLibraryFilePathname works with either the base library name or a
* function pointer, depending on the platform. We can't query an exported
* symbol such as NSC_GetFunctionList, because on some platforms we can't
* find symbols in loaded implicit dependencies.
* But we can just get the address of this function !
*/
fullPath = PR_GetLibraryFilePathname(NameOfThisSharedLib,
(PRFuncPtr)&loader_LoadLibrary);
if (fullPath) {
lib = loader_LoadLibInReferenceDir(fullPath, nameToLoad);
#ifdef XP_UNIX
if (!lib) {
/*
* If fullPath is a symbolic link, resolve the symbolic
* link and try again.
*/
char* originalfullPath = loader_GetOriginalPathname(fullPath);
if (originalfullPath) {
PR_Free(fullPath);
fullPath = originalfullPath;
lib = loader_LoadLibInReferenceDir(fullPath, nameToLoad);
}
}
#endif
PR_Free(fullPath);
}
if (!lib) {
#ifdef DEBUG_LOADER
PR_fprintf(PR_STDOUT, "\nAttempting to load %s\n", nameToLoad);
#endif
libSpec.type = PR_LibSpec_Pathname;
libSpec.value.pathname = nameToLoad;
lib = PR_LoadLibraryWithFlags(libSpec, PR_LD_NOW | PR_LD_LOCAL);
}
if (NULL == lib) {
#ifdef DEBUG_LOADER
PR_fprintf(PR_STDOUT, "\nLoading failed : %s.\n", nameToLoad);
#endif
}
return lib;
}
static PRBool
blapi_SHVerify(const char *name, PRFuncPtr addr, PRBool self)
{
PRBool result = PR_FALSE; /* if anything goes wrong,
* the signature does not verify */
/* find our shared library name */
char *shName = PR_GetLibraryFilePathname(name, addr);
if (!shName) {
goto loser;
}
result = blapi_SHVerifyFile(shName, self);
loser:
if (shName != NULL) {
PR_Free(shName);
}
return result;
}
static PRLibrary *
sftkdb_LoadLibrary(const char *libname)
{
PRLibrary *lib = NULL;
PRFuncPtr fn_addr;
char *parentLibPath = NULL;
fn_addr = (PRFuncPtr) &sftkdb_LoadLibrary;
parentLibPath = PR_GetLibraryFilePathname(SOFTOKEN_LIB_NAME, fn_addr);
if (!parentLibPath) {
goto done;
}
lib = sftkdb_LoadFromPath(parentLibPath, libname);
#ifdef XP_UNIX
/* handle symbolic link case */
if (!lib) {
char *trueParentLibPath = sftkdb_resolvePath(parentLibPath);
if (!trueParentLibPath) {
goto done;
}
lib = sftkdb_LoadFromPath(trueParentLibPath, libname);
PORT_Free(trueParentLibPath);
}
#endif
done:
if (parentLibPath) {
PORT_Free(parentLibPath);
}
/* still couldn't load it, try the generic path */
if (!lib) {
PRLibSpec libSpec;
libSpec.type = PR_LibSpec_Pathname;
libSpec.value.pathname = libname;
lib = PR_LoadLibraryWithFlags(libSpec, PR_LD_NOW | PR_LD_LOCAL);
}
return lib;
}
PRBool
BLAPI_SHVerify(const char *name, PRFuncPtr addr)
{
#ifdef PSEUDO_FIPS
return PR_TRUE; /* a lie, hence *pseudo* FIPS */
#else
PRBool result = PR_FALSE; /* if anything goes wrong,
* the signature does not verify */
/* find our shared library name */
char *shName = PR_GetLibraryFilePathname(name, addr);
if (!shName) {
goto loser;
}
result = BLAPI_SHVerifyFile(shName);
loser:
if (shName != NULL) {
PR_Free(shName);
}
return result;
#endif /* PSEUDO_FIPS */
}
