61 static bool FindPciDevicePrefix(const std::string& path, std::string* result) {  in FindPciDevicePrefix()  argument
64     if (!StartsWith(path, "/devices/pci")) return false;  in FindPciDevicePrefix()
71     auto end = path.find('/', start);  in FindPciDevicePrefix()
74     end = path.find('/', end + 1);  in FindPciDevicePrefix()
84     *result = path.substr(start, length);  in FindPciDevicePrefix()
92 static bool FindVbdDevicePrefix(const std::string& path, std::string* result) {  in FindVbdDevicePrefix()  argument
95     if (!StartsWith(path, "/devices/vbd-")) return false;  in FindVbdDevicePrefix()
102     auto end = path.find('/', start);  in FindVbdDevicePrefix()
108     *result = path.substr(start, length);  in FindVbdDevicePrefix()
117     if (!StartsWith(uevent.path, "/devices/virtual/block/dm-")) return false;  in FindDmDevice()
156 bool Permissions::Match(const std::string& path) const {  in Match()
157     if (prefix_) return StartsWith(path, name_);  in Match()
159         return fnmatch(name_.c_str(), path.c_str(), no_fnm_pathname_ ? 0 : FNM_PATHNAME) == 0;  in Match()
160     return path == name_;  in Match()
163 bool SysfsPermissions::MatchWithSubsystem(const std::string& path,  in MatchWithSubsystem()  argument
165     std::string path_basename = Basename(path);  in MatchWithSubsystem()
170     return Match(path);  in MatchWithSubsystem()
173 void SysfsPermissions::SetPermissions(const std::string& path) const {  in SetPermissions()
174     std::string attribute_file = path + "/" + attribute_;  in SetPermissions()
222 bool DeviceHandler::FindPlatformDevice(std::string path, std::string* platform_device_path) const {  in FindPlatformDevice()  argument
226     path.insert(0, sysfs_mount_point_);  in FindPlatformDevice()
228     std::string directory = Dirname(path);  in FindPlatformDevice()
241         auto last_slash = path.rfind('/');  in FindPlatformDevice()
244         path.erase(last_slash);  in FindPlatformDevice()
245         directory = Dirname(path);  in FindPlatformDevice()
255     std::string path = "/sys" + upath;  in FixupSysPermissions()  local
258         if (s.MatchWithSubsystem(path, subsystem)) s.SetPermissions(path);  in FixupSysPermissions()
261     if (!skip_restorecon_ && access(path.c_str(), F_OK) == 0) {  in FixupSysPermissions()
262         LOG(VERBOSE) << "restorecon_recursive: " << path;  in FixupSysPermissions()
263         if (selinux_android_restorecon(path.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) {  in FixupSysPermissions()
264             PLOG(ERROR) << "selinux_android_restorecon(" << path << ") failed";  in FixupSysPermissions()
270     const std::string& path, const std::vector<std::string>& links) const {  in GetDevicePermissions()  argument
273         if (it->Match(path) || std::any_of(links.cbegin(), links.cend(),  in GetDevicePermissions()
282 void DeviceHandler::MakeDevice(const std::string& path, bool block, int major, int minor,  in MakeDevice()  argument
284     auto[mode, uid, gid] = GetDevicePermissions(path, links);  in MakeDevice()
288     if (!SelabelLookupFileContextBestMatch(path, links, mode, &secontext)) {  in MakeDevice()
289         PLOG(ERROR) << "Device '" << path << "' not created; cannot find SELinux label";  in MakeDevice()
305         PLOG(ERROR) << "setegid(" << gid << ") for " << path << " device failed";  in MakeDevice()
310     if (mknod(path.c_str(), mode, dev) && (errno == EEXIST) && !secontext.empty()) {  in MakeDevice()
312         int rc = lgetfilecon(path.c_str(), &fcon);  in MakeDevice()
314             PLOG(ERROR) << "Cannot get SELinux label on '" << path << "' device";  in MakeDevice()
321         if (different && lsetfilecon(path.c_str(), secontext.c_str())) {  in MakeDevice()
322             PLOG(ERROR) << "Cannot set '" << secontext << "' SELinux label on '" << path  in MakeDevice()
327         if (stat(path.c_str(), &s) == 0) {  in MakeDevice()
332             if (chmod(path.c_str(), mode) != 0) {  in MakeDevice()
333                 PLOG(ERROR) << "Cannot chmod " << path << " to " << mode;  in MakeDevice()
337             PLOG(ERROR) << "Cannot stat " << path;  in MakeDevice()
342     if (chown(path.c_str(), uid, new_group) < 0) {  in MakeDevice()
343         PLOG(ERROR) << "Cannot chown " << path << " " << uid << " " << new_group;  in MakeDevice()
377     if (FindPlatformDevice(uevent.path, &device)) {  in GetBlockDeviceSymlinks()
389     } else if (FindPciDevicePrefix(uevent.path, &device)) {  in GetBlockDeviceSymlinks()
391     } else if (FindVbdDevicePrefix(uevent.path, &device)) {  in GetBlockDeviceSymlinks()
438     auto last_slash = uevent.path.rfind('/');  in GetBlockDeviceSymlinks()
439     links.emplace_back(link_path + "/" + uevent.path.substr(last_slash + 1));  in GetBlockDeviceSymlinks()
463             auto path = dir + "/" + dp->d_name;  in RemoveDeviceMapperLinks()  local
464             if (Readlink(path, &link_path) && link_path == devpath) {  in RemoveDeviceMapperLinks()
465                 unlink(path.c_str());  in RemoveDeviceMapperLinks()
526         dup_ashmem_uevent.path += boot_id;  in HandleAshmemUevent()
534     FixupSysPermissions(uevent.path, uevent.subsystem);  in HandleUevent()
546         devpath = "/dev/block/" + Basename(uevent.path);  in HandleUevent()
548         if (StartsWith(uevent.path, "/devices")) {  in HandleUevent()
572         devpath = "/dev/" + Basename(uevent.path);  in HandleUevent()