58 static bool FindPciDevicePrefix(const std::string& path, std::string* result) {  in FindPciDevicePrefix()  argument
61     if (!StartsWith(path, "/devices/pci")) return false;  in FindPciDevicePrefix()
68     auto end = path.find('/', start);  in FindPciDevicePrefix()
71     end = path.find('/', end + 1);  in FindPciDevicePrefix()
81     *result = path.substr(start, length);  in FindPciDevicePrefix()
89 static bool FindVbdDevicePrefix(const std::string& path, std::string* result) {  in FindVbdDevicePrefix()  argument
92     if (!StartsWith(path, "/devices/vbd-")) return false;  in FindVbdDevicePrefix()
99     auto end = path.find('/', start);  in FindVbdDevicePrefix()
105     *result = path.substr(start, length);  in FindVbdDevicePrefix()
113 static bool FindDmDevice(const std::string& path, std::string* name, std::string* uuid) {  in FindDmDevice()  argument
114     if (!StartsWith(path, "/devices/virtual/block/dm-")) return false;  in FindDmDevice()
116     if (!ReadFileToString("/sys" + path + "/dm/name", name)) {  in FindDmDevice()
119     ReadFileToString("/sys" + path + "/dm/uuid", uuid);  in FindDmDevice()
150 bool Permissions::Match(const std::string& path) const {  in Match()
151     if (prefix_) return StartsWith(path, name_);  in Match()
152     if (wildcard_) return fnmatch(name_.c_str(), path.c_str(), FNM_PATHNAME) == 0;  in Match()
153     return path == name_;  in Match()
156 bool SysfsPermissions::MatchWithSubsystem(const std::string& path,  in MatchWithSubsystem()  argument
158     std::string path_basename = Basename(path);  in MatchWithSubsystem()
163     return Match(path);  in MatchWithSubsystem()
166 void SysfsPermissions::SetPermissions(const std::string& path) const {  in SetPermissions()
167     std::string attribute_file = path + "/" + attribute_;  in SetPermissions()
185 bool DeviceHandler::FindPlatformDevice(std::string path, std::string* platform_device_path) const {  in FindPlatformDevice()  argument
189     path.insert(0, sysfs_mount_point_);  in FindPlatformDevice()
191     std::string directory = Dirname(path);  in FindPlatformDevice()
204         auto last_slash = path.rfind('/');  in FindPlatformDevice()
207         path.erase(last_slash);  in FindPlatformDevice()
208         directory = Dirname(path);  in FindPlatformDevice()
218     std::string path = "/sys" + upath;  in FixupSysPermissions()  local
221         if (s.MatchWithSubsystem(path, subsystem)) s.SetPermissions(path);  in FixupSysPermissions()
224     if (!skip_restorecon_ && access(path.c_str(), F_OK) == 0) {  in FixupSysPermissions()
225         LOG(VERBOSE) << "restorecon_recursive: " << path;  in FixupSysPermissions()
226         if (selinux_android_restorecon(path.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) {  in FixupSysPermissions()
227             PLOG(ERROR) << "selinux_android_restorecon(" << path << ") failed";  in FixupSysPermissions()
233     const std::string& path, const std::vector<std::string>& links) const {  in GetDevicePermissions()  argument
236         if (it->Match(path) || std::any_of(links.cbegin(), links.cend(),  in GetDevicePermissions()
245 void DeviceHandler::MakeDevice(const std::string& path, bool block, int major, int minor,  in MakeDevice()  argument
247     auto[mode, uid, gid] = GetDevicePermissions(path, links);  in MakeDevice()
251     if (!SelabelLookupFileContextBestMatch(path, links, mode, &secontext)) {  in MakeDevice()
252         PLOG(ERROR) << "Device '" << path << "' not created; cannot find SELinux label";  in MakeDevice()
266         PLOG(ERROR) << "setegid(" << gid << ") for " << path << " device failed";  in MakeDevice()
271     if (mknod(path.c_str(), mode, dev) && (errno == EEXIST) && !secontext.empty()) {  in MakeDevice()
273         int rc = lgetfilecon(path.c_str(), &fcon);  in MakeDevice()
275             PLOG(ERROR) << "Cannot get SELinux label on '" << path << "' device";  in MakeDevice()
282         if (different && lsetfilecon(path.c_str(), secontext.c_str())) {  in MakeDevice()
283             PLOG(ERROR) << "Cannot set '" << secontext << "' SELinux label on '" << path  in MakeDevice()
289     chown(path.c_str(), uid, -1);  in MakeDevice()
322     if (FindPlatformDevice(uevent.path, &device)) {  in GetBlockDeviceSymlinks()
334     } else if (FindPciDevicePrefix(uevent.path, &device)) {  in GetBlockDeviceSymlinks()
336     } else if (FindVbdDevicePrefix(uevent.path, &device)) {  in GetBlockDeviceSymlinks()
338     } else if (FindDmDevice(uevent.path, &partition, &uuid)) {  in GetBlockDeviceSymlinks()
373     auto last_slash = uevent.path.rfind('/');  in GetBlockDeviceSymlinks()
374     links.emplace_back(link_path + "/" + uevent.path.substr(last_slash + 1));  in GetBlockDeviceSymlinks()
398             auto path = dir + "/" + dp->d_name;  in RemoveDeviceMapperLinks()  local
399             if (Readlink(path, &link_path) && link_path == devpath) {  in RemoveDeviceMapperLinks()
400                 unlink(path.c_str());  in RemoveDeviceMapperLinks()
457         dup_ashmem_uevent.path += boot_id;  in HandleAshmemUevent()
464         FixupSysPermissions(uevent.path, uevent.subsystem);  in HandleUevent()
476         devpath = "/dev/block/" + Basename(uevent.path);  in HandleUevent()
478         if (StartsWith(uevent.path, "/devices")) {  in HandleUevent()
500         devpath = "/dev/" + Basename(uevent.path);  in HandleUevent()