| | |
| | | |
| | | FUNCTION_RETURN parse_blkid(const std::string &blkid_file_content, std::vector<DiskInfo> &diskInfos_out, |
| | | std::unordered_map<std::string, int> &disk_by_uuid) { |
| | | DiskInfo diskInfo; |
| | | DiskInfo diskInfo = {}; |
| | | int diskNum = 0; |
| | | for (std::size_t oldpos = 0, pos = 0; (pos = blkid_file_content.find("</device>", oldpos)) != std::string::npos; |
| | | oldpos = pos + 1) { |
| | |
| | | parseUUID(disk_sn.c_str(), diskInfo.disk_sn, sizeof(diskInfo.disk_sn)); |
| | | std::string disk_type = getAttribute(cur_dev, "TYPE"); |
| | | disk_by_uuid.insert(std::pair<std::string, int>(disk_sn, diskInfo.id)); |
| | | diskInfo.label_initialized = true; |
| | | diskInfo.sn_initialized = true; |
| | | // unlikely that somebody put the swap on a removable disk. |
| | | // this is a first rough guess on what can be a preferred disk for blkid devices |
| | | // just in case /etc/fstab can't be accessed or it is not up to date. |
| | |
| | | static void set_preferred_disks(std::vector<DiskInfo> &diskInfos, std::unordered_map<std::string, int> &disk_by_uuid) { |
| | | FILE *fstabFile = setmntent("/etc/fstab", "r"); |
| | | if (fstabFile == nullptr) { |
| | | /*fstab not accessible*/ |
| | | LOG_DEBUG("/etc/fstab not accessible"); |
| | | return; |
| | | } |
| | | struct mntent *ent; |
| | | while (nullptr != (ent = getmntent(fstabFile))) { |
| | | bool found = false; |
| | | std::string device_name_s(ent->mnt_fsname); |
| | | LOG_DEBUG("found fstab entry %s ", ent->mnt_fsname); |
| | | if (strncmp("UUID=", ent->mnt_fsname, 5) == 0) { |
| | | // fstab entry is uuid |
| | | device_name_s = device_name_s.substr(5); |
| | |
| | | } else { |
| | | LOG_DEBUG("fstab device %s found, but no corresponding diskInfo", ent->mnt_fsname); |
| | | } |
| | | } else if (strncmp("LABEL=", ent->mnt_fsname, 6) == 0) { |
| | | // fstab entry is uuid |
| | | device_name_s = device_name_s.substr(6); |
| | | for (auto &disk_info : diskInfos) { |
| | | if (device_name_s == disk_info.label) { |
| | | disk_info.preferred = true; |
| | | LOG_DEBUG("Disk %d device %s set as preferred", disk_info.id, disk_info.device); |
| | | break; |
| | | } |
| | | } |
| | | } else { |
| | | // fstab entry is a device |
| | | auto pos = device_name_s.find_last_of("/"); |