1c216e5adSMichael Roth /* 2c216e5adSMichael Roth * QEMU Guest Agent POSIX-specific command implementations 3c216e5adSMichael Roth * 4c216e5adSMichael Roth * Copyright IBM Corp. 2011 5c216e5adSMichael Roth * 6c216e5adSMichael Roth * Authors: 7c216e5adSMichael Roth * Michael Roth <mdroth@linux.vnet.ibm.com> 83424fc9fSMichal Privoznik * Michal Privoznik <mprivozn@redhat.com> 9c216e5adSMichael Roth * 10c216e5adSMichael Roth * This work is licensed under the terms of the GNU GPL, version 2 or later. 11c216e5adSMichael Roth * See the COPYING file in the top-level directory. 12c216e5adSMichael Roth */ 13c216e5adSMichael Roth 144459bf38SPeter Maydell #include "qemu/osdep.h" 15c216e5adSMichael Roth #include <sys/ioctl.h> 169848f797STomáš Golembiovský #include <sys/utsname.h> 172c02cbf6SLuiz Capitulino #include <sys/wait.h> 1846d4c572STomoki Sekiyama #include <dirent.h> 19dc03272dSMichael S. Tsirkin #include "guest-agent-core.h" 20eb815e24SMarkus Armbruster #include "qga-qapi-commands.h" 21e688df6bSMarkus Armbruster #include "qapi/error.h" 227b1b5d19SPaolo Bonzini #include "qapi/qmp/qerror.h" 231de7afc9SPaolo Bonzini #include "qemu/queue.h" 241de7afc9SPaolo Bonzini #include "qemu/host-utils.h" 2512505396SDenis V. Lunev #include "qemu/sockets.h" 26920639caSDaniel P. Berrange #include "qemu/base64.h" 27f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 28c216e5adSMichael Roth 29e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 30e674605fSTomáš Golembiovský #include <utmpx.h> 31e674605fSTomáš Golembiovský #endif 32e674605fSTomáš Golembiovský 332c02cbf6SLuiz Capitulino #ifndef CONFIG_HAS_ENVIRON 34eecae147SAndreas Färber #ifdef __APPLE__ 35eecae147SAndreas Färber #include <crt_externs.h> 36eecae147SAndreas Färber #define environ (*_NSGetEnviron()) 37eecae147SAndreas Färber #else 382c02cbf6SLuiz Capitulino extern char **environ; 392c02cbf6SLuiz Capitulino #endif 40eecae147SAndreas Färber #endif 412c02cbf6SLuiz Capitulino 42e72c3f2eSMichael Roth #if defined(__linux__) 43e72c3f2eSMichael Roth #include <mntent.h> 44e72c3f2eSMichael Roth #include <linux/fs.h> 45e72c3f2eSMichael Roth #include <ifaddrs.h> 46e72c3f2eSMichael Roth #include <arpa/inet.h> 47e72c3f2eSMichael Roth #include <sys/socket.h> 48e72c3f2eSMichael Roth #include <net/if.h> 4925b5ff1aSChen Hanxiao #include <sys/statvfs.h> 50e72c3f2eSMichael Roth 51b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 52b616105aSTomáš Golembiovský #include <libudev.h> 53b616105aSTomáš Golembiovský #endif 54b616105aSTomáš Golembiovský 55eab5fd59SPaolo Bonzini #ifdef FIFREEZE 56e72c3f2eSMichael Roth #define CONFIG_FSFREEZE 57e72c3f2eSMichael Roth #endif 58eab5fd59SPaolo Bonzini #ifdef FITRIM 59eab5fd59SPaolo Bonzini #define CONFIG_FSTRIM 60eab5fd59SPaolo Bonzini #endif 61e72c3f2eSMichael Roth #endif 62e72c3f2eSMichael Roth 6377dbc81bSMarkus Armbruster static void ga_wait_child(pid_t pid, int *status, Error **errp) 64d220a6dfSLuiz Capitulino { 65d220a6dfSLuiz Capitulino pid_t rpid; 66d220a6dfSLuiz Capitulino 67d220a6dfSLuiz Capitulino *status = 0; 68d220a6dfSLuiz Capitulino 69d220a6dfSLuiz Capitulino do { 70d220a6dfSLuiz Capitulino rpid = waitpid(pid, status, 0); 71d220a6dfSLuiz Capitulino } while (rpid == -1 && errno == EINTR); 72d220a6dfSLuiz Capitulino 73d220a6dfSLuiz Capitulino if (rpid == -1) { 7477dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to wait for child (pid: %d)", 7577dbc81bSMarkus Armbruster pid); 76d220a6dfSLuiz Capitulino return; 77d220a6dfSLuiz Capitulino } 78d220a6dfSLuiz Capitulino 79d220a6dfSLuiz Capitulino g_assert(rpid == pid); 80d220a6dfSLuiz Capitulino } 81d220a6dfSLuiz Capitulino 8277dbc81bSMarkus Armbruster void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 83c216e5adSMichael Roth { 84c216e5adSMichael Roth const char *shutdown_flag; 85d220a6dfSLuiz Capitulino Error *local_err = NULL; 86d220a6dfSLuiz Capitulino pid_t pid; 873674838cSLuiz Capitulino int status; 88c216e5adSMichael Roth 89c216e5adSMichael Roth slog("guest-shutdown called, mode: %s", mode); 90c216e5adSMichael Roth if (!has_mode || strcmp(mode, "powerdown") == 0) { 91c216e5adSMichael Roth shutdown_flag = "-P"; 92c216e5adSMichael Roth } else if (strcmp(mode, "halt") == 0) { 93c216e5adSMichael Roth shutdown_flag = "-H"; 94c216e5adSMichael Roth } else if (strcmp(mode, "reboot") == 0) { 95c216e5adSMichael Roth shutdown_flag = "-r"; 96c216e5adSMichael Roth } else { 9777dbc81bSMarkus Armbruster error_setg(errp, 98d220a6dfSLuiz Capitulino "mode is invalid (valid values are: halt|powerdown|reboot"); 99c216e5adSMichael Roth return; 100c216e5adSMichael Roth } 101c216e5adSMichael Roth 102d5dd3498SLuiz Capitulino pid = fork(); 103d5dd3498SLuiz Capitulino if (pid == 0) { 104c216e5adSMichael Roth /* child, start the shutdown */ 105c216e5adSMichael Roth setsid(); 1063674838cSLuiz Capitulino reopen_fd_to_null(0); 1073674838cSLuiz Capitulino reopen_fd_to_null(1); 1083674838cSLuiz Capitulino reopen_fd_to_null(2); 109c216e5adSMichael Roth 110485e741cSwhitearchey execle("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0", 1113674838cSLuiz Capitulino "hypervisor initiated shutdown", (char*)NULL, environ); 1123674838cSLuiz Capitulino _exit(EXIT_FAILURE); 113d5dd3498SLuiz Capitulino } else if (pid < 0) { 11477dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 115d5dd3498SLuiz Capitulino return; 116d5dd3498SLuiz Capitulino } 117d5dd3498SLuiz Capitulino 118d220a6dfSLuiz Capitulino ga_wait_child(pid, &status, &local_err); 11984d18f06SMarkus Armbruster if (local_err) { 12077dbc81bSMarkus Armbruster error_propagate(errp, local_err); 121d220a6dfSLuiz Capitulino return; 122d220a6dfSLuiz Capitulino } 123d220a6dfSLuiz Capitulino 124d220a6dfSLuiz Capitulino if (!WIFEXITED(status)) { 12577dbc81bSMarkus Armbruster error_setg(errp, "child process has terminated abnormally"); 126d220a6dfSLuiz Capitulino return; 127d220a6dfSLuiz Capitulino } 128d220a6dfSLuiz Capitulino 129d220a6dfSLuiz Capitulino if (WEXITSTATUS(status)) { 13077dbc81bSMarkus Armbruster error_setg(errp, "child process has failed to shutdown"); 131d220a6dfSLuiz Capitulino return; 132d220a6dfSLuiz Capitulino } 133d220a6dfSLuiz Capitulino 134085d8134SPeter Maydell /* succeeded */ 135c216e5adSMichael Roth } 136c216e5adSMichael Roth 1376912e6a9SLei Li int64_t qmp_guest_get_time(Error **errp) 1386912e6a9SLei Li { 1396912e6a9SLei Li int ret; 1406912e6a9SLei Li qemu_timeval tq; 1416912e6a9SLei Li 1426912e6a9SLei Li ret = qemu_gettimeofday(&tq); 1436912e6a9SLei Li if (ret < 0) { 1446912e6a9SLei Li error_setg_errno(errp, errno, "Failed to get time"); 1456912e6a9SLei Li return -1; 1466912e6a9SLei Li } 1476912e6a9SLei Li 1489be38598SEduardo Habkost return tq.tv_sec * 1000000000LL + tq.tv_usec * 1000; 1496912e6a9SLei Li } 1506912e6a9SLei Li 1512c958923SMichal Privoznik void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 152a1bca57fSLei Li { 153a1bca57fSLei Li int ret; 154a1bca57fSLei Li int status; 155a1bca57fSLei Li pid_t pid; 156a1bca57fSLei Li Error *local_err = NULL; 157a1bca57fSLei Li struct timeval tv; 158a1bca57fSLei Li 1592c958923SMichal Privoznik /* If user has passed a time, validate and set it. */ 1602c958923SMichal Privoznik if (has_time) { 16100d2f370SMarc-André Lureau GDate date = { 0, }; 16200d2f370SMarc-André Lureau 163a1bca57fSLei Li /* year-2038 will overflow in case time_t is 32bit */ 164a1bca57fSLei Li if (time_ns / 1000000000 != (time_t)(time_ns / 1000000000)) { 165a1bca57fSLei Li error_setg(errp, "Time %" PRId64 " is too large", time_ns); 166a1bca57fSLei Li return; 167a1bca57fSLei Li } 168a1bca57fSLei Li 169a1bca57fSLei Li tv.tv_sec = time_ns / 1000000000; 170a1bca57fSLei Li tv.tv_usec = (time_ns % 1000000000) / 1000; 17100d2f370SMarc-André Lureau g_date_set_time_t(&date, tv.tv_sec); 17200d2f370SMarc-André Lureau if (date.year < 1970 || date.year >= 2070) { 17300d2f370SMarc-André Lureau error_setg_errno(errp, errno, "Invalid time"); 17400d2f370SMarc-André Lureau return; 17500d2f370SMarc-André Lureau } 176a1bca57fSLei Li 177a1bca57fSLei Li ret = settimeofday(&tv, NULL); 178a1bca57fSLei Li if (ret < 0) { 179a1bca57fSLei Li error_setg_errno(errp, errno, "Failed to set time to guest"); 180a1bca57fSLei Li return; 181a1bca57fSLei Li } 1822c958923SMichal Privoznik } 183a1bca57fSLei Li 1842c958923SMichal Privoznik /* Now, if user has passed a time to set and the system time is set, we 1852c958923SMichal Privoznik * just need to synchronize the hardware clock. However, if no time was 1862c958923SMichal Privoznik * passed, user is requesting the opposite: set the system time from the 1871634df56SAmos Kong * hardware clock (RTC). */ 188a1bca57fSLei Li pid = fork(); 189a1bca57fSLei Li if (pid == 0) { 190a1bca57fSLei Li setsid(); 191a1bca57fSLei Li reopen_fd_to_null(0); 192a1bca57fSLei Li reopen_fd_to_null(1); 193a1bca57fSLei Li reopen_fd_to_null(2); 194a1bca57fSLei Li 1952c958923SMichal Privoznik /* Use '/sbin/hwclock -w' to set RTC from the system time, 1962c958923SMichal Privoznik * or '/sbin/hwclock -s' to set the system time from RTC. */ 1972c958923SMichal Privoznik execle("/sbin/hwclock", "hwclock", has_time ? "-w" : "-s", 1982c958923SMichal Privoznik NULL, environ); 199a1bca57fSLei Li _exit(EXIT_FAILURE); 200a1bca57fSLei Li } else if (pid < 0) { 201a1bca57fSLei Li error_setg_errno(errp, errno, "failed to create child process"); 202a1bca57fSLei Li return; 203a1bca57fSLei Li } 204a1bca57fSLei Li 205a1bca57fSLei Li ga_wait_child(pid, &status, &local_err); 20684d18f06SMarkus Armbruster if (local_err) { 207a1bca57fSLei Li error_propagate(errp, local_err); 208a1bca57fSLei Li return; 209a1bca57fSLei Li } 210a1bca57fSLei Li 211a1bca57fSLei Li if (!WIFEXITED(status)) { 212a1bca57fSLei Li error_setg(errp, "child process has terminated abnormally"); 213a1bca57fSLei Li return; 214a1bca57fSLei Li } 215a1bca57fSLei Li 216a1bca57fSLei Li if (WEXITSTATUS(status)) { 217a1bca57fSLei Li error_setg(errp, "hwclock failed to set hardware clock to system time"); 218a1bca57fSLei Li return; 219a1bca57fSLei Li } 220a1bca57fSLei Li } 221a1bca57fSLei Li 222895b00f6SMarc-André Lureau typedef enum { 223895b00f6SMarc-André Lureau RW_STATE_NEW, 224895b00f6SMarc-André Lureau RW_STATE_READING, 225895b00f6SMarc-André Lureau RW_STATE_WRITING, 226895b00f6SMarc-André Lureau } RwState; 227895b00f6SMarc-André Lureau 228c216e5adSMichael Roth typedef struct GuestFileHandle { 229c216e5adSMichael Roth uint64_t id; 230c216e5adSMichael Roth FILE *fh; 231895b00f6SMarc-André Lureau RwState state; 232c216e5adSMichael Roth QTAILQ_ENTRY(GuestFileHandle) next; 233c216e5adSMichael Roth } GuestFileHandle; 234c216e5adSMichael Roth 235c216e5adSMichael Roth static struct { 236c216e5adSMichael Roth QTAILQ_HEAD(, GuestFileHandle) filehandles; 237b4fe97c8SDenis V. Lunev } guest_file_state = { 238b4fe97c8SDenis V. Lunev .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 239b4fe97c8SDenis V. Lunev }; 240c216e5adSMichael Roth 24139097dafSMichael Roth static int64_t guest_file_handle_add(FILE *fh, Error **errp) 242c216e5adSMichael Roth { 243c216e5adSMichael Roth GuestFileHandle *gfh; 24439097dafSMichael Roth int64_t handle; 24539097dafSMichael Roth 24639097dafSMichael Roth handle = ga_get_fd_handle(ga_state, errp); 247a903f40cSMarkus Armbruster if (handle < 0) { 248a903f40cSMarkus Armbruster return -1; 24939097dafSMichael Roth } 250c216e5adSMichael Roth 251f3a06403SMarkus Armbruster gfh = g_new0(GuestFileHandle, 1); 25239097dafSMichael Roth gfh->id = handle; 253c216e5adSMichael Roth gfh->fh = fh; 254c216e5adSMichael Roth QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 25539097dafSMichael Roth 25639097dafSMichael Roth return handle; 257c216e5adSMichael Roth } 258c216e5adSMichael Roth 25977dbc81bSMarkus Armbruster static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 260c216e5adSMichael Roth { 261c216e5adSMichael Roth GuestFileHandle *gfh; 262c216e5adSMichael Roth 263c216e5adSMichael Roth QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) 264c216e5adSMichael Roth { 265c216e5adSMichael Roth if (gfh->id == id) { 266c216e5adSMichael Roth return gfh; 267c216e5adSMichael Roth } 268c216e5adSMichael Roth } 269c216e5adSMichael Roth 27077dbc81bSMarkus Armbruster error_setg(errp, "handle '%" PRId64 "' has not been found", id); 271c216e5adSMichael Roth return NULL; 272c216e5adSMichael Roth } 273c216e5adSMichael Roth 274c689b4f1SLaszlo Ersek typedef const char * const ccpc; 275c689b4f1SLaszlo Ersek 2768fe6bbcaSLaszlo Ersek #ifndef O_BINARY 2778fe6bbcaSLaszlo Ersek #define O_BINARY 0 2788fe6bbcaSLaszlo Ersek #endif 2798fe6bbcaSLaszlo Ersek 280c689b4f1SLaszlo Ersek /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */ 281c689b4f1SLaszlo Ersek static const struct { 282c689b4f1SLaszlo Ersek ccpc *forms; 283c689b4f1SLaszlo Ersek int oflag_base; 284c689b4f1SLaszlo Ersek } guest_file_open_modes[] = { 2858fe6bbcaSLaszlo Ersek { (ccpc[]){ "r", NULL }, O_RDONLY }, 2868fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb", NULL }, O_RDONLY | O_BINARY }, 2878fe6bbcaSLaszlo Ersek { (ccpc[]){ "w", NULL }, O_WRONLY | O_CREAT | O_TRUNC }, 2888fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb", NULL }, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY }, 2898fe6bbcaSLaszlo Ersek { (ccpc[]){ "a", NULL }, O_WRONLY | O_CREAT | O_APPEND }, 2908fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab", NULL }, O_WRONLY | O_CREAT | O_APPEND | O_BINARY }, 2918fe6bbcaSLaszlo Ersek { (ccpc[]){ "r+", NULL }, O_RDWR }, 2928fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb+", "r+b", NULL }, O_RDWR | O_BINARY }, 2938fe6bbcaSLaszlo Ersek { (ccpc[]){ "w+", NULL }, O_RDWR | O_CREAT | O_TRUNC }, 2948fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb+", "w+b", NULL }, O_RDWR | O_CREAT | O_TRUNC | O_BINARY }, 2958fe6bbcaSLaszlo Ersek { (ccpc[]){ "a+", NULL }, O_RDWR | O_CREAT | O_APPEND }, 2968fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab+", "a+b", NULL }, O_RDWR | O_CREAT | O_APPEND | O_BINARY } 297c689b4f1SLaszlo Ersek }; 298c689b4f1SLaszlo Ersek 299c689b4f1SLaszlo Ersek static int 30077dbc81bSMarkus Armbruster find_open_flag(const char *mode_str, Error **errp) 301c689b4f1SLaszlo Ersek { 302c689b4f1SLaszlo Ersek unsigned mode; 303c689b4f1SLaszlo Ersek 304c689b4f1SLaszlo Ersek for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 305c689b4f1SLaszlo Ersek ccpc *form; 306c689b4f1SLaszlo Ersek 307c689b4f1SLaszlo Ersek form = guest_file_open_modes[mode].forms; 308c689b4f1SLaszlo Ersek while (*form != NULL && strcmp(*form, mode_str) != 0) { 309c689b4f1SLaszlo Ersek ++form; 310c689b4f1SLaszlo Ersek } 311c689b4f1SLaszlo Ersek if (*form != NULL) { 312c689b4f1SLaszlo Ersek break; 313c689b4f1SLaszlo Ersek } 314c689b4f1SLaszlo Ersek } 315c689b4f1SLaszlo Ersek 316c689b4f1SLaszlo Ersek if (mode == ARRAY_SIZE(guest_file_open_modes)) { 31777dbc81bSMarkus Armbruster error_setg(errp, "invalid file open mode '%s'", mode_str); 318c689b4f1SLaszlo Ersek return -1; 319c689b4f1SLaszlo Ersek } 320c689b4f1SLaszlo Ersek return guest_file_open_modes[mode].oflag_base | O_NOCTTY | O_NONBLOCK; 321c689b4f1SLaszlo Ersek } 322c689b4f1SLaszlo Ersek 323c689b4f1SLaszlo Ersek #define DEFAULT_NEW_FILE_MODE (S_IRUSR | S_IWUSR | \ 324c689b4f1SLaszlo Ersek S_IRGRP | S_IWGRP | \ 325c689b4f1SLaszlo Ersek S_IROTH | S_IWOTH) 326c689b4f1SLaszlo Ersek 327c689b4f1SLaszlo Ersek static FILE * 32877dbc81bSMarkus Armbruster safe_open_or_create(const char *path, const char *mode, Error **errp) 329c689b4f1SLaszlo Ersek { 330c689b4f1SLaszlo Ersek Error *local_err = NULL; 331c689b4f1SLaszlo Ersek int oflag; 332c689b4f1SLaszlo Ersek 333c689b4f1SLaszlo Ersek oflag = find_open_flag(mode, &local_err); 334c689b4f1SLaszlo Ersek if (local_err == NULL) { 335c689b4f1SLaszlo Ersek int fd; 336c689b4f1SLaszlo Ersek 337c689b4f1SLaszlo Ersek /* If the caller wants / allows creation of a new file, we implement it 338c689b4f1SLaszlo Ersek * with a two step process: open() + (open() / fchmod()). 339c689b4f1SLaszlo Ersek * 340c689b4f1SLaszlo Ersek * First we insist on creating the file exclusively as a new file. If 341c689b4f1SLaszlo Ersek * that succeeds, we're free to set any file-mode bits on it. (The 342c689b4f1SLaszlo Ersek * motivation is that we want to set those file-mode bits independently 343c689b4f1SLaszlo Ersek * of the current umask.) 344c689b4f1SLaszlo Ersek * 345c689b4f1SLaszlo Ersek * If the exclusive creation fails because the file already exists 346c689b4f1SLaszlo Ersek * (EEXIST is not possible for any other reason), we just attempt to 347c689b4f1SLaszlo Ersek * open the file, but in this case we won't be allowed to change the 348c689b4f1SLaszlo Ersek * file-mode bits on the preexistent file. 349c689b4f1SLaszlo Ersek * 350c689b4f1SLaszlo Ersek * The pathname should never disappear between the two open()s in 351c689b4f1SLaszlo Ersek * practice. If it happens, then someone very likely tried to race us. 352c689b4f1SLaszlo Ersek * In this case just go ahead and report the ENOENT from the second 353c689b4f1SLaszlo Ersek * open() to the caller. 354c689b4f1SLaszlo Ersek * 355c689b4f1SLaszlo Ersek * If the caller wants to open a preexistent file, then the first 356c689b4f1SLaszlo Ersek * open() is decisive and its third argument is ignored, and the second 357c689b4f1SLaszlo Ersek * open() and the fchmod() are never called. 358c689b4f1SLaszlo Ersek */ 359c689b4f1SLaszlo Ersek fd = open(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0); 360c689b4f1SLaszlo Ersek if (fd == -1 && errno == EEXIST) { 361c689b4f1SLaszlo Ersek oflag &= ~(unsigned)O_CREAT; 362c689b4f1SLaszlo Ersek fd = open(path, oflag); 363c689b4f1SLaszlo Ersek } 364c689b4f1SLaszlo Ersek 365c689b4f1SLaszlo Ersek if (fd == -1) { 366c689b4f1SLaszlo Ersek error_setg_errno(&local_err, errno, "failed to open file '%s' " 367c689b4f1SLaszlo Ersek "(mode: '%s')", path, mode); 368c689b4f1SLaszlo Ersek } else { 369c689b4f1SLaszlo Ersek qemu_set_cloexec(fd); 370c689b4f1SLaszlo Ersek 371c689b4f1SLaszlo Ersek if ((oflag & O_CREAT) && fchmod(fd, DEFAULT_NEW_FILE_MODE) == -1) { 372c689b4f1SLaszlo Ersek error_setg_errno(&local_err, errno, "failed to set permission " 373c689b4f1SLaszlo Ersek "0%03o on new file '%s' (mode: '%s')", 374c689b4f1SLaszlo Ersek (unsigned)DEFAULT_NEW_FILE_MODE, path, mode); 375c689b4f1SLaszlo Ersek } else { 376c689b4f1SLaszlo Ersek FILE *f; 377c689b4f1SLaszlo Ersek 378c689b4f1SLaszlo Ersek f = fdopen(fd, mode); 379c689b4f1SLaszlo Ersek if (f == NULL) { 380c689b4f1SLaszlo Ersek error_setg_errno(&local_err, errno, "failed to associate " 381c689b4f1SLaszlo Ersek "stdio stream with file descriptor %d, " 382c689b4f1SLaszlo Ersek "file '%s' (mode: '%s')", fd, path, mode); 383c689b4f1SLaszlo Ersek } else { 384c689b4f1SLaszlo Ersek return f; 385c689b4f1SLaszlo Ersek } 386c689b4f1SLaszlo Ersek } 387c689b4f1SLaszlo Ersek 388c689b4f1SLaszlo Ersek close(fd); 3892b720018SLaszlo Ersek if (oflag & O_CREAT) { 3902b720018SLaszlo Ersek unlink(path); 3912b720018SLaszlo Ersek } 392c689b4f1SLaszlo Ersek } 393c689b4f1SLaszlo Ersek } 394c689b4f1SLaszlo Ersek 39577dbc81bSMarkus Armbruster error_propagate(errp, local_err); 396c689b4f1SLaszlo Ersek return NULL; 397c689b4f1SLaszlo Ersek } 398c689b4f1SLaszlo Ersek 39977dbc81bSMarkus Armbruster int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, 40077dbc81bSMarkus Armbruster Error **errp) 401c216e5adSMichael Roth { 402c216e5adSMichael Roth FILE *fh; 403c689b4f1SLaszlo Ersek Error *local_err = NULL; 40485b6f6f5SSimon Zolin int64_t handle; 405c216e5adSMichael Roth 406c216e5adSMichael Roth if (!has_mode) { 407c216e5adSMichael Roth mode = "r"; 408c216e5adSMichael Roth } 409c216e5adSMichael Roth slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 410c689b4f1SLaszlo Ersek fh = safe_open_or_create(path, mode, &local_err); 411c689b4f1SLaszlo Ersek if (local_err != NULL) { 41277dbc81bSMarkus Armbruster error_propagate(errp, local_err); 413c216e5adSMichael Roth return -1; 414c216e5adSMichael Roth } 415c216e5adSMichael Roth 416c216e5adSMichael Roth /* set fd non-blocking to avoid common use cases (like reading from a 417c216e5adSMichael Roth * named pipe) from hanging the agent 418c216e5adSMichael Roth */ 41912505396SDenis V. Lunev qemu_set_nonblock(fileno(fh)); 420c216e5adSMichael Roth 42177dbc81bSMarkus Armbruster handle = guest_file_handle_add(fh, errp); 422a903f40cSMarkus Armbruster if (handle < 0) { 42339097dafSMichael Roth fclose(fh); 42439097dafSMichael Roth return -1; 42539097dafSMichael Roth } 42639097dafSMichael Roth 427d607a523SStefan Weil slog("guest-file-open, handle: %" PRId64, handle); 42839097dafSMichael Roth return handle; 429c216e5adSMichael Roth } 430c216e5adSMichael Roth 43177dbc81bSMarkus Armbruster void qmp_guest_file_close(int64_t handle, Error **errp) 432c216e5adSMichael Roth { 43377dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 434c216e5adSMichael Roth int ret; 435c216e5adSMichael Roth 436d607a523SStefan Weil slog("guest-file-close called, handle: %" PRId64, handle); 437c216e5adSMichael Roth if (!gfh) { 438c216e5adSMichael Roth return; 439c216e5adSMichael Roth } 440c216e5adSMichael Roth 441c216e5adSMichael Roth ret = fclose(gfh->fh); 4423ac4b7c5SLuiz Capitulino if (ret == EOF) { 44377dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to close handle"); 444c216e5adSMichael Roth return; 445c216e5adSMichael Roth } 446c216e5adSMichael Roth 447c216e5adSMichael Roth QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 448c216e5adSMichael Roth g_free(gfh); 449c216e5adSMichael Roth } 450c216e5adSMichael Roth 451c216e5adSMichael Roth struct GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count, 45277dbc81bSMarkus Armbruster int64_t count, Error **errp) 453c216e5adSMichael Roth { 45477dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 455c216e5adSMichael Roth GuestFileRead *read_data = NULL; 456c216e5adSMichael Roth guchar *buf; 457c216e5adSMichael Roth FILE *fh; 458c216e5adSMichael Roth size_t read_count; 459c216e5adSMichael Roth 460c216e5adSMichael Roth if (!gfh) { 461c216e5adSMichael Roth return NULL; 462c216e5adSMichael Roth } 463c216e5adSMichael Roth 464c216e5adSMichael Roth if (!has_count) { 465c216e5adSMichael Roth count = QGA_READ_COUNT_DEFAULT; 466141b1974SPrasad J Pandit } else if (count < 0 || count >= UINT32_MAX) { 46777dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 468db3edb66SLuiz Capitulino count); 469c216e5adSMichael Roth return NULL; 470c216e5adSMichael Roth } 471c216e5adSMichael Roth 472c216e5adSMichael Roth fh = gfh->fh; 473895b00f6SMarc-André Lureau 474895b00f6SMarc-André Lureau /* explicitly flush when switching from writing to reading */ 475895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_WRITING) { 476895b00f6SMarc-André Lureau int ret = fflush(fh); 477895b00f6SMarc-André Lureau if (ret == EOF) { 478895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to flush file"); 479895b00f6SMarc-André Lureau return NULL; 480895b00f6SMarc-André Lureau } 481895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 482895b00f6SMarc-André Lureau } 483895b00f6SMarc-André Lureau 484c216e5adSMichael Roth buf = g_malloc0(count+1); 485c216e5adSMichael Roth read_count = fread(buf, 1, count, fh); 486c216e5adSMichael Roth if (ferror(fh)) { 48777dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to read file"); 488d607a523SStefan Weil slog("guest-file-read failed, handle: %" PRId64, handle); 489c216e5adSMichael Roth } else { 490c216e5adSMichael Roth buf[read_count] = 0; 491f3a06403SMarkus Armbruster read_data = g_new0(GuestFileRead, 1); 492c216e5adSMichael Roth read_data->count = read_count; 493c216e5adSMichael Roth read_data->eof = feof(fh); 494c216e5adSMichael Roth if (read_count) { 495c216e5adSMichael Roth read_data->buf_b64 = g_base64_encode(buf, read_count); 496c216e5adSMichael Roth } 497895b00f6SMarc-André Lureau gfh->state = RW_STATE_READING; 498c216e5adSMichael Roth } 499c216e5adSMichael Roth g_free(buf); 500c216e5adSMichael Roth clearerr(fh); 501c216e5adSMichael Roth 502c216e5adSMichael Roth return read_data; 503c216e5adSMichael Roth } 504c216e5adSMichael Roth 505c216e5adSMichael Roth GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 50677dbc81bSMarkus Armbruster bool has_count, int64_t count, 50777dbc81bSMarkus Armbruster Error **errp) 508c216e5adSMichael Roth { 509c216e5adSMichael Roth GuestFileWrite *write_data = NULL; 510c216e5adSMichael Roth guchar *buf; 511c216e5adSMichael Roth gsize buf_len; 512c216e5adSMichael Roth int write_count; 51377dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 514c216e5adSMichael Roth FILE *fh; 515c216e5adSMichael Roth 516c216e5adSMichael Roth if (!gfh) { 517c216e5adSMichael Roth return NULL; 518c216e5adSMichael Roth } 519c216e5adSMichael Roth 520c216e5adSMichael Roth fh = gfh->fh; 521895b00f6SMarc-André Lureau 522895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_READING) { 523895b00f6SMarc-André Lureau int ret = fseek(fh, 0, SEEK_CUR); 524895b00f6SMarc-André Lureau if (ret == -1) { 525895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to seek file"); 526895b00f6SMarc-André Lureau return NULL; 527895b00f6SMarc-André Lureau } 528895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 529895b00f6SMarc-André Lureau } 530895b00f6SMarc-André Lureau 531920639caSDaniel P. Berrange buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 532920639caSDaniel P. Berrange if (!buf) { 533920639caSDaniel P. Berrange return NULL; 534920639caSDaniel P. Berrange } 535c216e5adSMichael Roth 536c216e5adSMichael Roth if (!has_count) { 537c216e5adSMichael Roth count = buf_len; 538c216e5adSMichael Roth } else if (count < 0 || count > buf_len) { 53977dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 540db3edb66SLuiz Capitulino count); 541c216e5adSMichael Roth g_free(buf); 542c216e5adSMichael Roth return NULL; 543c216e5adSMichael Roth } 544c216e5adSMichael Roth 545c216e5adSMichael Roth write_count = fwrite(buf, 1, count, fh); 546c216e5adSMichael Roth if (ferror(fh)) { 54777dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to write to file"); 548d607a523SStefan Weil slog("guest-file-write failed, handle: %" PRId64, handle); 549c216e5adSMichael Roth } else { 550f3a06403SMarkus Armbruster write_data = g_new0(GuestFileWrite, 1); 551c216e5adSMichael Roth write_data->count = write_count; 552c216e5adSMichael Roth write_data->eof = feof(fh); 553895b00f6SMarc-André Lureau gfh->state = RW_STATE_WRITING; 554c216e5adSMichael Roth } 555c216e5adSMichael Roth g_free(buf); 556c216e5adSMichael Roth clearerr(fh); 557c216e5adSMichael Roth 558c216e5adSMichael Roth return write_data; 559c216e5adSMichael Roth } 560c216e5adSMichael Roth 561c216e5adSMichael Roth struct GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 5620b4b4938SEric Blake GuestFileWhence *whence_code, 5630b4b4938SEric Blake Error **errp) 564c216e5adSMichael Roth { 56577dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 566c216e5adSMichael Roth GuestFileSeek *seek_data = NULL; 567c216e5adSMichael Roth FILE *fh; 568c216e5adSMichael Roth int ret; 5690a982b1bSEric Blake int whence; 5700b4b4938SEric Blake Error *err = NULL; 571c216e5adSMichael Roth 572c216e5adSMichael Roth if (!gfh) { 573c216e5adSMichael Roth return NULL; 574c216e5adSMichael Roth } 575c216e5adSMichael Roth 5760a982b1bSEric Blake /* We stupidly exposed 'whence':'int' in our qapi */ 5770b4b4938SEric Blake whence = ga_parse_whence(whence_code, &err); 5780b4b4938SEric Blake if (err) { 5790b4b4938SEric Blake error_propagate(errp, err); 5800a982b1bSEric Blake return NULL; 5810a982b1bSEric Blake } 5820a982b1bSEric Blake 583c216e5adSMichael Roth fh = gfh->fh; 584c216e5adSMichael Roth ret = fseek(fh, offset, whence); 585c216e5adSMichael Roth if (ret == -1) { 58677dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to seek file"); 587895b00f6SMarc-André Lureau if (errno == ESPIPE) { 588895b00f6SMarc-André Lureau /* file is non-seekable, stdio shouldn't be buffering anyways */ 589895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 590895b00f6SMarc-André Lureau } 591c216e5adSMichael Roth } else { 59210b7c5ddSMarkus Armbruster seek_data = g_new0(GuestFileSeek, 1); 593c216e5adSMichael Roth seek_data->position = ftell(fh); 594c216e5adSMichael Roth seek_data->eof = feof(fh); 595895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 596c216e5adSMichael Roth } 597c216e5adSMichael Roth clearerr(fh); 598c216e5adSMichael Roth 599c216e5adSMichael Roth return seek_data; 600c216e5adSMichael Roth } 601c216e5adSMichael Roth 60277dbc81bSMarkus Armbruster void qmp_guest_file_flush(int64_t handle, Error **errp) 603c216e5adSMichael Roth { 60477dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 605c216e5adSMichael Roth FILE *fh; 606c216e5adSMichael Roth int ret; 607c216e5adSMichael Roth 608c216e5adSMichael Roth if (!gfh) { 609c216e5adSMichael Roth return; 610c216e5adSMichael Roth } 611c216e5adSMichael Roth 612c216e5adSMichael Roth fh = gfh->fh; 613c216e5adSMichael Roth ret = fflush(fh); 614c216e5adSMichael Roth if (ret == EOF) { 61577dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to flush file"); 616895b00f6SMarc-André Lureau } else { 617895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 618c216e5adSMichael Roth } 619c216e5adSMichael Roth } 620c216e5adSMichael Roth 621e72c3f2eSMichael Roth /* linux-specific implementations. avoid this if at all possible. */ 622e72c3f2eSMichael Roth #if defined(__linux__) 623e72c3f2eSMichael Roth 624eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) 625af02203fSPaolo Bonzini typedef struct FsMount { 626c216e5adSMichael Roth char *dirname; 627c216e5adSMichael Roth char *devtype; 62846d4c572STomoki Sekiyama unsigned int devmajor, devminor; 629af02203fSPaolo Bonzini QTAILQ_ENTRY(FsMount) next; 630af02203fSPaolo Bonzini } FsMount; 631c216e5adSMichael Roth 632e5d9adbdSTomoki Sekiyama typedef QTAILQ_HEAD(FsMountList, FsMount) FsMountList; 6339e8aded4SMichael Roth 634af02203fSPaolo Bonzini static void free_fs_mount_list(FsMountList *mounts) 635c216e5adSMichael Roth { 636af02203fSPaolo Bonzini FsMount *mount, *temp; 637c216e5adSMichael Roth 6389e8aded4SMichael Roth if (!mounts) { 6399e8aded4SMichael Roth return; 6409e8aded4SMichael Roth } 6419e8aded4SMichael Roth 6429e8aded4SMichael Roth QTAILQ_FOREACH_SAFE(mount, mounts, next, temp) { 6439e8aded4SMichael Roth QTAILQ_REMOVE(mounts, mount, next); 644c216e5adSMichael Roth g_free(mount->dirname); 645c216e5adSMichael Roth g_free(mount->devtype); 646c216e5adSMichael Roth g_free(mount); 647c216e5adSMichael Roth } 6489e8aded4SMichael Roth } 6499e8aded4SMichael Roth 65046d4c572STomoki Sekiyama static int dev_major_minor(const char *devpath, 65146d4c572STomoki Sekiyama unsigned int *devmajor, unsigned int *devminor) 65246d4c572STomoki Sekiyama { 65346d4c572STomoki Sekiyama struct stat st; 65446d4c572STomoki Sekiyama 65546d4c572STomoki Sekiyama *devmajor = 0; 65646d4c572STomoki Sekiyama *devminor = 0; 65746d4c572STomoki Sekiyama 65846d4c572STomoki Sekiyama if (stat(devpath, &st) < 0) { 65946d4c572STomoki Sekiyama slog("failed to stat device file '%s': %s", devpath, strerror(errno)); 66046d4c572STomoki Sekiyama return -1; 66146d4c572STomoki Sekiyama } 66246d4c572STomoki Sekiyama if (S_ISDIR(st.st_mode)) { 66346d4c572STomoki Sekiyama /* It is bind mount */ 66446d4c572STomoki Sekiyama return -2; 66546d4c572STomoki Sekiyama } 66646d4c572STomoki Sekiyama if (S_ISBLK(st.st_mode)) { 66746d4c572STomoki Sekiyama *devmajor = major(st.st_rdev); 66846d4c572STomoki Sekiyama *devminor = minor(st.st_rdev); 66946d4c572STomoki Sekiyama return 0; 67046d4c572STomoki Sekiyama } 67146d4c572STomoki Sekiyama return -1; 67246d4c572STomoki Sekiyama } 67346d4c572STomoki Sekiyama 6749e8aded4SMichael Roth /* 6759e8aded4SMichael Roth * Walk the mount table and build a list of local file systems 6769e8aded4SMichael Roth */ 67746d4c572STomoki Sekiyama static void build_fs_mount_list_from_mtab(FsMountList *mounts, Error **errp) 6789e8aded4SMichael Roth { 6799e8aded4SMichael Roth struct mntent *ment; 680af02203fSPaolo Bonzini FsMount *mount; 6819e2fa418SMichael Roth char const *mtab = "/proc/self/mounts"; 6829e8aded4SMichael Roth FILE *fp; 68346d4c572STomoki Sekiyama unsigned int devmajor, devminor; 684c216e5adSMichael Roth 685c216e5adSMichael Roth fp = setmntent(mtab, "r"); 686c216e5adSMichael Roth if (!fp) { 68777dbc81bSMarkus Armbruster error_setg(errp, "failed to open mtab file: '%s'", mtab); 688261551d1SLuiz Capitulino return; 689c216e5adSMichael Roth } 690c216e5adSMichael Roth 691c216e5adSMichael Roth while ((ment = getmntent(fp))) { 692c216e5adSMichael Roth /* 693c216e5adSMichael Roth * An entry which device name doesn't start with a '/' is 694c216e5adSMichael Roth * either a dummy file system or a network file system. 695c216e5adSMichael Roth * Add special handling for smbfs and cifs as is done by 696c216e5adSMichael Roth * coreutils as well. 697c216e5adSMichael Roth */ 698c216e5adSMichael Roth if ((ment->mnt_fsname[0] != '/') || 699c216e5adSMichael Roth (strcmp(ment->mnt_type, "smbfs") == 0) || 700c216e5adSMichael Roth (strcmp(ment->mnt_type, "cifs") == 0)) { 701c216e5adSMichael Roth continue; 702c216e5adSMichael Roth } 70346d4c572STomoki Sekiyama if (dev_major_minor(ment->mnt_fsname, &devmajor, &devminor) == -2) { 70446d4c572STomoki Sekiyama /* Skip bind mounts */ 70546d4c572STomoki Sekiyama continue; 70646d4c572STomoki Sekiyama } 707c216e5adSMichael Roth 708f3a06403SMarkus Armbruster mount = g_new0(FsMount, 1); 709c216e5adSMichael Roth mount->dirname = g_strdup(ment->mnt_dir); 710c216e5adSMichael Roth mount->devtype = g_strdup(ment->mnt_type); 71146d4c572STomoki Sekiyama mount->devmajor = devmajor; 71246d4c572STomoki Sekiyama mount->devminor = devminor; 713c216e5adSMichael Roth 7149e8aded4SMichael Roth QTAILQ_INSERT_TAIL(mounts, mount, next); 715c216e5adSMichael Roth } 716c216e5adSMichael Roth 717c216e5adSMichael Roth endmntent(fp); 718c216e5adSMichael Roth } 71946d4c572STomoki Sekiyama 72046d4c572STomoki Sekiyama static void decode_mntname(char *name, int len) 72146d4c572STomoki Sekiyama { 72246d4c572STomoki Sekiyama int i, j = 0; 72346d4c572STomoki Sekiyama for (i = 0; i <= len; i++) { 72446d4c572STomoki Sekiyama if (name[i] != '\\') { 72546d4c572STomoki Sekiyama name[j++] = name[i]; 72646d4c572STomoki Sekiyama } else if (name[i + 1] == '\\') { 72746d4c572STomoki Sekiyama name[j++] = '\\'; 72846d4c572STomoki Sekiyama i++; 72946d4c572STomoki Sekiyama } else if (name[i + 1] >= '0' && name[i + 1] <= '3' && 73046d4c572STomoki Sekiyama name[i + 2] >= '0' && name[i + 2] <= '7' && 73146d4c572STomoki Sekiyama name[i + 3] >= '0' && name[i + 3] <= '7') { 73246d4c572STomoki Sekiyama name[j++] = (name[i + 1] - '0') * 64 + 73346d4c572STomoki Sekiyama (name[i + 2] - '0') * 8 + 73446d4c572STomoki Sekiyama (name[i + 3] - '0'); 73546d4c572STomoki Sekiyama i += 3; 73646d4c572STomoki Sekiyama } else { 73746d4c572STomoki Sekiyama name[j++] = name[i]; 73846d4c572STomoki Sekiyama } 73946d4c572STomoki Sekiyama } 74046d4c572STomoki Sekiyama } 74146d4c572STomoki Sekiyama 74246d4c572STomoki Sekiyama static void build_fs_mount_list(FsMountList *mounts, Error **errp) 74346d4c572STomoki Sekiyama { 74446d4c572STomoki Sekiyama FsMount *mount; 74546d4c572STomoki Sekiyama char const *mountinfo = "/proc/self/mountinfo"; 74646d4c572STomoki Sekiyama FILE *fp; 74746d4c572STomoki Sekiyama char *line = NULL, *dash; 74846d4c572STomoki Sekiyama size_t n; 74946d4c572STomoki Sekiyama char check; 75046d4c572STomoki Sekiyama unsigned int devmajor, devminor; 75146d4c572STomoki Sekiyama int ret, dir_s, dir_e, type_s, type_e, dev_s, dev_e; 75246d4c572STomoki Sekiyama 75346d4c572STomoki Sekiyama fp = fopen(mountinfo, "r"); 75446d4c572STomoki Sekiyama if (!fp) { 75546d4c572STomoki Sekiyama build_fs_mount_list_from_mtab(mounts, errp); 75646d4c572STomoki Sekiyama return; 75746d4c572STomoki Sekiyama } 75846d4c572STomoki Sekiyama 75946d4c572STomoki Sekiyama while (getline(&line, &n, fp) != -1) { 76046d4c572STomoki Sekiyama ret = sscanf(line, "%*u %*u %u:%u %*s %n%*s%n%c", 76146d4c572STomoki Sekiyama &devmajor, &devminor, &dir_s, &dir_e, &check); 76246d4c572STomoki Sekiyama if (ret < 3) { 76346d4c572STomoki Sekiyama continue; 76446d4c572STomoki Sekiyama } 76546d4c572STomoki Sekiyama dash = strstr(line + dir_e, " - "); 76646d4c572STomoki Sekiyama if (!dash) { 76746d4c572STomoki Sekiyama continue; 76846d4c572STomoki Sekiyama } 76946d4c572STomoki Sekiyama ret = sscanf(dash, " - %n%*s%n %n%*s%n%c", 77046d4c572STomoki Sekiyama &type_s, &type_e, &dev_s, &dev_e, &check); 77146d4c572STomoki Sekiyama if (ret < 1) { 77246d4c572STomoki Sekiyama continue; 77346d4c572STomoki Sekiyama } 77446d4c572STomoki Sekiyama line[dir_e] = 0; 77546d4c572STomoki Sekiyama dash[type_e] = 0; 77646d4c572STomoki Sekiyama dash[dev_e] = 0; 77746d4c572STomoki Sekiyama decode_mntname(line + dir_s, dir_e - dir_s); 77846d4c572STomoki Sekiyama decode_mntname(dash + dev_s, dev_e - dev_s); 77946d4c572STomoki Sekiyama if (devmajor == 0) { 78046d4c572STomoki Sekiyama /* btrfs reports major number = 0 */ 78146d4c572STomoki Sekiyama if (strcmp("btrfs", dash + type_s) != 0 || 78246d4c572STomoki Sekiyama dev_major_minor(dash + dev_s, &devmajor, &devminor) < 0) { 78346d4c572STomoki Sekiyama continue; 78446d4c572STomoki Sekiyama } 78546d4c572STomoki Sekiyama } 78646d4c572STomoki Sekiyama 787f3a06403SMarkus Armbruster mount = g_new0(FsMount, 1); 78846d4c572STomoki Sekiyama mount->dirname = g_strdup(line + dir_s); 78946d4c572STomoki Sekiyama mount->devtype = g_strdup(dash + type_s); 79046d4c572STomoki Sekiyama mount->devmajor = devmajor; 79146d4c572STomoki Sekiyama mount->devminor = devminor; 79246d4c572STomoki Sekiyama 79346d4c572STomoki Sekiyama QTAILQ_INSERT_TAIL(mounts, mount, next); 79446d4c572STomoki Sekiyama } 79546d4c572STomoki Sekiyama free(line); 79646d4c572STomoki Sekiyama 79746d4c572STomoki Sekiyama fclose(fp); 79846d4c572STomoki Sekiyama } 799eab5fd59SPaolo Bonzini #endif 800eab5fd59SPaolo Bonzini 801eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) 802c216e5adSMichael Roth 80346d4c572STomoki Sekiyama static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) 80446d4c572STomoki Sekiyama { 80546d4c572STomoki Sekiyama char *path; 80646d4c572STomoki Sekiyama char *dpath; 80746d4c572STomoki Sekiyama char *driver = NULL; 80846d4c572STomoki Sekiyama char buf[PATH_MAX]; 80946d4c572STomoki Sekiyama ssize_t len; 81046d4c572STomoki Sekiyama 81146d4c572STomoki Sekiyama path = g_strndup(syspath, pathlen); 81246d4c572STomoki Sekiyama dpath = g_strdup_printf("%s/driver", path); 81346d4c572STomoki Sekiyama len = readlink(dpath, buf, sizeof(buf) - 1); 81446d4c572STomoki Sekiyama if (len != -1) { 81546d4c572STomoki Sekiyama buf[len] = 0; 8163e015d81SJulia Suvorova driver = g_path_get_basename(buf); 81746d4c572STomoki Sekiyama } 81846d4c572STomoki Sekiyama g_free(dpath); 81946d4c572STomoki Sekiyama g_free(path); 82046d4c572STomoki Sekiyama return driver; 82146d4c572STomoki Sekiyama } 82246d4c572STomoki Sekiyama 82346d4c572STomoki Sekiyama static int compare_uint(const void *_a, const void *_b) 82446d4c572STomoki Sekiyama { 82546d4c572STomoki Sekiyama unsigned int a = *(unsigned int *)_a; 82646d4c572STomoki Sekiyama unsigned int b = *(unsigned int *)_b; 82746d4c572STomoki Sekiyama 82846d4c572STomoki Sekiyama return a < b ? -1 : a > b ? 1 : 0; 82946d4c572STomoki Sekiyama } 83046d4c572STomoki Sekiyama 83146d4c572STomoki Sekiyama /* Walk the specified sysfs and build a sorted list of host or ata numbers */ 83246d4c572STomoki Sekiyama static int build_hosts(char const *syspath, char const *host, bool ata, 83346d4c572STomoki Sekiyama unsigned int *hosts, int hosts_max, Error **errp) 83446d4c572STomoki Sekiyama { 83546d4c572STomoki Sekiyama char *path; 83646d4c572STomoki Sekiyama DIR *dir; 83746d4c572STomoki Sekiyama struct dirent *entry; 83846d4c572STomoki Sekiyama int i = 0; 83946d4c572STomoki Sekiyama 84046d4c572STomoki Sekiyama path = g_strndup(syspath, host - syspath); 84146d4c572STomoki Sekiyama dir = opendir(path); 84246d4c572STomoki Sekiyama if (!dir) { 84346d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", path); 84446d4c572STomoki Sekiyama g_free(path); 84546d4c572STomoki Sekiyama return -1; 84646d4c572STomoki Sekiyama } 84746d4c572STomoki Sekiyama 84846d4c572STomoki Sekiyama while (i < hosts_max) { 84946d4c572STomoki Sekiyama entry = readdir(dir); 85046d4c572STomoki Sekiyama if (!entry) { 85146d4c572STomoki Sekiyama break; 85246d4c572STomoki Sekiyama } 85346d4c572STomoki Sekiyama if (ata && sscanf(entry->d_name, "ata%d", hosts + i) == 1) { 85446d4c572STomoki Sekiyama ++i; 85546d4c572STomoki Sekiyama } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) == 1) { 85646d4c572STomoki Sekiyama ++i; 85746d4c572STomoki Sekiyama } 85846d4c572STomoki Sekiyama } 85946d4c572STomoki Sekiyama 86046d4c572STomoki Sekiyama qsort(hosts, i, sizeof(hosts[0]), compare_uint); 86146d4c572STomoki Sekiyama 86246d4c572STomoki Sekiyama g_free(path); 86346d4c572STomoki Sekiyama closedir(dir); 86446d4c572STomoki Sekiyama return i; 86546d4c572STomoki Sekiyama } 86646d4c572STomoki Sekiyama 86746d4c572STomoki Sekiyama /* Store disk device info specified by @sysfs into @fs */ 86846d4c572STomoki Sekiyama static void build_guest_fsinfo_for_real_device(char const *syspath, 86946d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 87046d4c572STomoki Sekiyama Error **errp) 87146d4c572STomoki Sekiyama { 87246d4c572STomoki Sekiyama unsigned int pci[4], host, hosts[8], tgt[3]; 87346d4c572STomoki Sekiyama int i, nhosts = 0, pcilen; 87446d4c572STomoki Sekiyama GuestDiskAddress *disk; 87546d4c572STomoki Sekiyama GuestPCIAddress *pciaddr; 87646d4c572STomoki Sekiyama GuestDiskAddressList *list = NULL; 87746d4c572STomoki Sekiyama bool has_ata = false, has_host = false, has_tgt = false; 87846d4c572STomoki Sekiyama char *p, *q, *driver = NULL; 879b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 880b616105aSTomáš Golembiovský struct udev *udev = NULL; 881b616105aSTomáš Golembiovský struct udev_device *udevice = NULL; 882b616105aSTomáš Golembiovský #endif 88346d4c572STomoki Sekiyama 88446d4c572STomoki Sekiyama p = strstr(syspath, "/devices/pci"); 88546d4c572STomoki Sekiyama if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", 88646d4c572STomoki Sekiyama pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { 887743c71d0SMarc-André Lureau g_debug("only pci device is supported: sysfs path '%s'", syspath); 88846d4c572STomoki Sekiyama return; 88946d4c572STomoki Sekiyama } 89046d4c572STomoki Sekiyama 891743c71d0SMarc-André Lureau p += 12 + pcilen; 892743c71d0SMarc-André Lureau while (true) { 893743c71d0SMarc-André Lureau driver = get_pci_driver(syspath, p - syspath, errp); 894743c71d0SMarc-André Lureau if (driver && (g_str_equal(driver, "ata_piix") || 895743c71d0SMarc-André Lureau g_str_equal(driver, "sym53c8xx") || 896743c71d0SMarc-André Lureau g_str_equal(driver, "virtio-pci") || 897743c71d0SMarc-André Lureau g_str_equal(driver, "ahci"))) { 898743c71d0SMarc-André Lureau break; 899743c71d0SMarc-André Lureau } 900743c71d0SMarc-André Lureau 901bb23a736SMarc-André Lureau g_free(driver); 902743c71d0SMarc-André Lureau if (sscanf(p, "/%x:%x:%x.%x%n", 903743c71d0SMarc-André Lureau pci, pci + 1, pci + 2, pci + 3, &pcilen) == 4) { 904743c71d0SMarc-André Lureau p += pcilen; 905743c71d0SMarc-André Lureau continue; 906743c71d0SMarc-André Lureau } 907743c71d0SMarc-André Lureau 908743c71d0SMarc-André Lureau g_debug("unsupported driver or sysfs path '%s'", syspath); 909743c71d0SMarc-André Lureau return; 91046d4c572STomoki Sekiyama } 91146d4c572STomoki Sekiyama 91246d4c572STomoki Sekiyama p = strstr(syspath, "/target"); 91346d4c572STomoki Sekiyama if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 91446d4c572STomoki Sekiyama tgt, tgt + 1, tgt + 2) == 3) { 91546d4c572STomoki Sekiyama has_tgt = true; 91646d4c572STomoki Sekiyama } 91746d4c572STomoki Sekiyama 91846d4c572STomoki Sekiyama p = strstr(syspath, "/ata"); 91946d4c572STomoki Sekiyama if (p) { 92046d4c572STomoki Sekiyama q = p + 4; 92146d4c572STomoki Sekiyama has_ata = true; 92246d4c572STomoki Sekiyama } else { 92346d4c572STomoki Sekiyama p = strstr(syspath, "/host"); 92446d4c572STomoki Sekiyama q = p + 5; 92546d4c572STomoki Sekiyama } 92646d4c572STomoki Sekiyama if (p && sscanf(q, "%u", &host) == 1) { 92746d4c572STomoki Sekiyama has_host = true; 92846d4c572STomoki Sekiyama nhosts = build_hosts(syspath, p, has_ata, hosts, 92901a6df1bSPhilippe Mathieu-Daudé ARRAY_SIZE(hosts), errp); 93046d4c572STomoki Sekiyama if (nhosts < 0) { 93146d4c572STomoki Sekiyama goto cleanup; 93246d4c572STomoki Sekiyama } 93346d4c572STomoki Sekiyama } 93446d4c572STomoki Sekiyama 93546d4c572STomoki Sekiyama pciaddr = g_malloc0(sizeof(*pciaddr)); 93646d4c572STomoki Sekiyama pciaddr->domain = pci[0]; 93746d4c572STomoki Sekiyama pciaddr->bus = pci[1]; 93846d4c572STomoki Sekiyama pciaddr->slot = pci[2]; 93946d4c572STomoki Sekiyama pciaddr->function = pci[3]; 94046d4c572STomoki Sekiyama 94146d4c572STomoki Sekiyama disk = g_malloc0(sizeof(*disk)); 94246d4c572STomoki Sekiyama disk->pci_controller = pciaddr; 94346d4c572STomoki Sekiyama 94446d4c572STomoki Sekiyama list = g_malloc0(sizeof(*list)); 94546d4c572STomoki Sekiyama list->value = disk; 94646d4c572STomoki Sekiyama 947b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 948b616105aSTomáš Golembiovský udev = udev_new(); 949b616105aSTomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 950b616105aSTomáš Golembiovský if (udev == NULL || udevice == NULL) { 951b616105aSTomáš Golembiovský g_debug("failed to query udev"); 952b616105aSTomáš Golembiovský } else { 9536589ce35STomáš Golembiovský const char *devnode, *serial; 9546589ce35STomáš Golembiovský devnode = udev_device_get_devnode(udevice); 9556589ce35STomáš Golembiovský if (devnode != NULL) { 9566589ce35STomáš Golembiovský disk->dev = g_strdup(devnode); 9576589ce35STomáš Golembiovský disk->has_dev = true; 9586589ce35STomáš Golembiovský } 959b616105aSTomáš Golembiovský serial = udev_device_get_property_value(udevice, "ID_SERIAL"); 960b616105aSTomáš Golembiovský if (serial != NULL && *serial != 0) { 961b616105aSTomáš Golembiovský disk->serial = g_strdup(serial); 962b616105aSTomáš Golembiovský disk->has_serial = true; 963b616105aSTomáš Golembiovský } 964b616105aSTomáš Golembiovský } 965b616105aSTomáš Golembiovský #endif 966b616105aSTomáš Golembiovský 96746d4c572STomoki Sekiyama if (strcmp(driver, "ata_piix") == 0) { 96846d4c572STomoki Sekiyama /* a host per ide bus, target*:0:<unit>:0 */ 96946d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 97046d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 97146d4c572STomoki Sekiyama goto cleanup; 97246d4c572STomoki Sekiyama } 97346d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 97446d4c572STomoki Sekiyama if (host == hosts[i]) { 97546d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_IDE; 97646d4c572STomoki Sekiyama disk->bus = i; 97746d4c572STomoki Sekiyama disk->unit = tgt[1]; 97846d4c572STomoki Sekiyama break; 97946d4c572STomoki Sekiyama } 98046d4c572STomoki Sekiyama } 98146d4c572STomoki Sekiyama if (i >= nhosts) { 98246d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 98346d4c572STomoki Sekiyama goto cleanup; 98446d4c572STomoki Sekiyama } 98546d4c572STomoki Sekiyama } else if (strcmp(driver, "sym53c8xx") == 0) { 98646d4c572STomoki Sekiyama /* scsi(LSI Logic): target*:0:<unit>:0 */ 98746d4c572STomoki Sekiyama if (!has_tgt) { 98846d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 98946d4c572STomoki Sekiyama goto cleanup; 99046d4c572STomoki Sekiyama } 99146d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 99246d4c572STomoki Sekiyama disk->unit = tgt[1]; 99346d4c572STomoki Sekiyama } else if (strcmp(driver, "virtio-pci") == 0) { 99446d4c572STomoki Sekiyama if (has_tgt) { 99546d4c572STomoki Sekiyama /* virtio-scsi: target*:0:0:<unit> */ 99646d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 99746d4c572STomoki Sekiyama disk->unit = tgt[2]; 99846d4c572STomoki Sekiyama } else { 99946d4c572STomoki Sekiyama /* virtio-blk: 1 disk per 1 device */ 100046d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 100146d4c572STomoki Sekiyama } 100246d4c572STomoki Sekiyama } else if (strcmp(driver, "ahci") == 0) { 100346d4c572STomoki Sekiyama /* ahci: 1 host per 1 unit */ 100446d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 100546d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 100646d4c572STomoki Sekiyama goto cleanup; 100746d4c572STomoki Sekiyama } 100846d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 100946d4c572STomoki Sekiyama if (host == hosts[i]) { 101046d4c572STomoki Sekiyama disk->unit = i; 101146d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SATA; 101246d4c572STomoki Sekiyama break; 101346d4c572STomoki Sekiyama } 101446d4c572STomoki Sekiyama } 101546d4c572STomoki Sekiyama if (i >= nhosts) { 101646d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 101746d4c572STomoki Sekiyama goto cleanup; 101846d4c572STomoki Sekiyama } 101946d4c572STomoki Sekiyama } else { 102046d4c572STomoki Sekiyama g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); 102146d4c572STomoki Sekiyama goto cleanup; 102246d4c572STomoki Sekiyama } 102346d4c572STomoki Sekiyama 102446d4c572STomoki Sekiyama list->next = fs->disk; 102546d4c572STomoki Sekiyama fs->disk = list; 1026b616105aSTomáš Golembiovský goto out; 102746d4c572STomoki Sekiyama 102846d4c572STomoki Sekiyama cleanup: 102946d4c572STomoki Sekiyama if (list) { 103046d4c572STomoki Sekiyama qapi_free_GuestDiskAddressList(list); 103146d4c572STomoki Sekiyama } 1032b616105aSTomáš Golembiovský out: 103346d4c572STomoki Sekiyama g_free(driver); 1034b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 1035b616105aSTomáš Golembiovský udev_unref(udev); 1036b616105aSTomáš Golembiovský udev_device_unref(udevice); 1037b616105aSTomáš Golembiovský #endif 1038b616105aSTomáš Golembiovský return; 103946d4c572STomoki Sekiyama } 104046d4c572STomoki Sekiyama 104146d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 104246d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 104346d4c572STomoki Sekiyama Error **errp); 104446d4c572STomoki Sekiyama 104546d4c572STomoki Sekiyama /* Store a list of slave devices of virtual volume specified by @syspath into 104646d4c572STomoki Sekiyama * @fs */ 104746d4c572STomoki Sekiyama static void build_guest_fsinfo_for_virtual_device(char const *syspath, 104846d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 104946d4c572STomoki Sekiyama Error **errp) 105046d4c572STomoki Sekiyama { 105146d4c572STomoki Sekiyama DIR *dir; 105246d4c572STomoki Sekiyama char *dirpath; 1053e668d1b8Szhanghailiang struct dirent *entry; 105446d4c572STomoki Sekiyama 105546d4c572STomoki Sekiyama dirpath = g_strdup_printf("%s/slaves", syspath); 105646d4c572STomoki Sekiyama dir = opendir(dirpath); 105746d4c572STomoki Sekiyama if (!dir) { 10588251a72fSMichael Roth if (errno != ENOENT) { 105946d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); 10608251a72fSMichael Roth } 106146d4c572STomoki Sekiyama g_free(dirpath); 106246d4c572STomoki Sekiyama return; 106346d4c572STomoki Sekiyama } 106446d4c572STomoki Sekiyama 106546d4c572STomoki Sekiyama for (;;) { 1066e668d1b8Szhanghailiang errno = 0; 1067e668d1b8Szhanghailiang entry = readdir(dir); 1068e668d1b8Szhanghailiang if (entry == NULL) { 1069e668d1b8Szhanghailiang if (errno) { 1070e668d1b8Szhanghailiang error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); 107146d4c572STomoki Sekiyama } 107246d4c572STomoki Sekiyama break; 107346d4c572STomoki Sekiyama } 107446d4c572STomoki Sekiyama 1075e668d1b8Szhanghailiang if (entry->d_type == DT_LNK) { 1076e668d1b8Szhanghailiang char *path; 1077e668d1b8Szhanghailiang 1078e668d1b8Szhanghailiang g_debug(" slave device '%s'", entry->d_name); 1079e668d1b8Szhanghailiang path = g_strdup_printf("%s/slaves/%s", syspath, entry->d_name); 1080e668d1b8Szhanghailiang build_guest_fsinfo_for_device(path, fs, errp); 1081e668d1b8Szhanghailiang g_free(path); 108246d4c572STomoki Sekiyama 108346d4c572STomoki Sekiyama if (*errp) { 108446d4c572STomoki Sekiyama break; 108546d4c572STomoki Sekiyama } 108646d4c572STomoki Sekiyama } 108746d4c572STomoki Sekiyama } 108846d4c572STomoki Sekiyama 1089e668d1b8Szhanghailiang g_free(dirpath); 109046d4c572STomoki Sekiyama closedir(dir); 109146d4c572STomoki Sekiyama } 109246d4c572STomoki Sekiyama 109346d4c572STomoki Sekiyama /* Dispatch to functions for virtual/real device */ 109446d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 109546d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 109646d4c572STomoki Sekiyama Error **errp) 109746d4c572STomoki Sekiyama { 109846d4c572STomoki Sekiyama char *syspath = realpath(devpath, NULL); 109946d4c572STomoki Sekiyama 110046d4c572STomoki Sekiyama if (!syspath) { 110146d4c572STomoki Sekiyama error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 110246d4c572STomoki Sekiyama return; 110346d4c572STomoki Sekiyama } 110446d4c572STomoki Sekiyama 110546d4c572STomoki Sekiyama if (!fs->name) { 11063e015d81SJulia Suvorova fs->name = g_path_get_basename(syspath); 110746d4c572STomoki Sekiyama } 110846d4c572STomoki Sekiyama 110946d4c572STomoki Sekiyama g_debug(" parse sysfs path '%s'", syspath); 111046d4c572STomoki Sekiyama 111146d4c572STomoki Sekiyama if (strstr(syspath, "/devices/virtual/block/")) { 111246d4c572STomoki Sekiyama build_guest_fsinfo_for_virtual_device(syspath, fs, errp); 111346d4c572STomoki Sekiyama } else { 111446d4c572STomoki Sekiyama build_guest_fsinfo_for_real_device(syspath, fs, errp); 111546d4c572STomoki Sekiyama } 111646d4c572STomoki Sekiyama 111746d4c572STomoki Sekiyama free(syspath); 111846d4c572STomoki Sekiyama } 111946d4c572STomoki Sekiyama 112046d4c572STomoki Sekiyama /* Return a list of the disk device(s)' info which @mount lies on */ 112146d4c572STomoki Sekiyama static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, 112246d4c572STomoki Sekiyama Error **errp) 112346d4c572STomoki Sekiyama { 112446d4c572STomoki Sekiyama GuestFilesystemInfo *fs = g_malloc0(sizeof(*fs)); 112525b5ff1aSChen Hanxiao struct statvfs buf; 112625b5ff1aSChen Hanxiao unsigned long used, nonroot_total, fr_size; 112746d4c572STomoki Sekiyama char *devpath = g_strdup_printf("/sys/dev/block/%u:%u", 112846d4c572STomoki Sekiyama mount->devmajor, mount->devminor); 112946d4c572STomoki Sekiyama 113046d4c572STomoki Sekiyama fs->mountpoint = g_strdup(mount->dirname); 113146d4c572STomoki Sekiyama fs->type = g_strdup(mount->devtype); 113246d4c572STomoki Sekiyama build_guest_fsinfo_for_device(devpath, fs, errp); 113346d4c572STomoki Sekiyama 113425b5ff1aSChen Hanxiao if (statvfs(fs->mountpoint, &buf) == 0) { 113525b5ff1aSChen Hanxiao fr_size = buf.f_frsize; 113625b5ff1aSChen Hanxiao used = buf.f_blocks - buf.f_bfree; 113725b5ff1aSChen Hanxiao nonroot_total = used + buf.f_bavail; 113825b5ff1aSChen Hanxiao fs->used_bytes = used * fr_size; 113925b5ff1aSChen Hanxiao fs->total_bytes = nonroot_total * fr_size; 114025b5ff1aSChen Hanxiao 114125b5ff1aSChen Hanxiao fs->has_total_bytes = true; 114225b5ff1aSChen Hanxiao fs->has_used_bytes = true; 114325b5ff1aSChen Hanxiao } 114425b5ff1aSChen Hanxiao 114546d4c572STomoki Sekiyama g_free(devpath); 114625b5ff1aSChen Hanxiao 114746d4c572STomoki Sekiyama return fs; 114846d4c572STomoki Sekiyama } 114946d4c572STomoki Sekiyama 115046d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 115146d4c572STomoki Sekiyama { 115246d4c572STomoki Sekiyama FsMountList mounts; 115346d4c572STomoki Sekiyama struct FsMount *mount; 115446d4c572STomoki Sekiyama GuestFilesystemInfoList *new, *ret = NULL; 115546d4c572STomoki Sekiyama Error *local_err = NULL; 115646d4c572STomoki Sekiyama 115746d4c572STomoki Sekiyama QTAILQ_INIT(&mounts); 115846d4c572STomoki Sekiyama build_fs_mount_list(&mounts, &local_err); 115946d4c572STomoki Sekiyama if (local_err) { 116046d4c572STomoki Sekiyama error_propagate(errp, local_err); 116146d4c572STomoki Sekiyama return NULL; 116246d4c572STomoki Sekiyama } 116346d4c572STomoki Sekiyama 116446d4c572STomoki Sekiyama QTAILQ_FOREACH(mount, &mounts, next) { 116546d4c572STomoki Sekiyama g_debug("Building guest fsinfo for '%s'", mount->dirname); 116646d4c572STomoki Sekiyama 116746d4c572STomoki Sekiyama new = g_malloc0(sizeof(*ret)); 116846d4c572STomoki Sekiyama new->value = build_guest_fsinfo(mount, &local_err); 116946d4c572STomoki Sekiyama new->next = ret; 117046d4c572STomoki Sekiyama ret = new; 117146d4c572STomoki Sekiyama if (local_err) { 117246d4c572STomoki Sekiyama error_propagate(errp, local_err); 117346d4c572STomoki Sekiyama qapi_free_GuestFilesystemInfoList(ret); 117446d4c572STomoki Sekiyama ret = NULL; 117546d4c572STomoki Sekiyama break; 117646d4c572STomoki Sekiyama } 117746d4c572STomoki Sekiyama } 117846d4c572STomoki Sekiyama 117946d4c572STomoki Sekiyama free_fs_mount_list(&mounts); 118046d4c572STomoki Sekiyama return ret; 118146d4c572STomoki Sekiyama } 118246d4c572STomoki Sekiyama 118346d4c572STomoki Sekiyama 1184ec0f694cSTomoki Sekiyama typedef enum { 1185ec0f694cSTomoki Sekiyama FSFREEZE_HOOK_THAW = 0, 1186ec0f694cSTomoki Sekiyama FSFREEZE_HOOK_FREEZE, 1187ec0f694cSTomoki Sekiyama } FsfreezeHookArg; 1188ec0f694cSTomoki Sekiyama 118913a439ecSStefan Weil static const char *fsfreeze_hook_arg_string[] = { 1190ec0f694cSTomoki Sekiyama "thaw", 1191ec0f694cSTomoki Sekiyama "freeze", 1192ec0f694cSTomoki Sekiyama }; 1193ec0f694cSTomoki Sekiyama 119477dbc81bSMarkus Armbruster static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp) 1195ec0f694cSTomoki Sekiyama { 1196ec0f694cSTomoki Sekiyama int status; 1197ec0f694cSTomoki Sekiyama pid_t pid; 1198ec0f694cSTomoki Sekiyama const char *hook; 1199ec0f694cSTomoki Sekiyama const char *arg_str = fsfreeze_hook_arg_string[arg]; 1200ec0f694cSTomoki Sekiyama Error *local_err = NULL; 1201ec0f694cSTomoki Sekiyama 1202ec0f694cSTomoki Sekiyama hook = ga_fsfreeze_hook(ga_state); 1203ec0f694cSTomoki Sekiyama if (!hook) { 1204ec0f694cSTomoki Sekiyama return; 1205ec0f694cSTomoki Sekiyama } 1206ec0f694cSTomoki Sekiyama if (access(hook, X_OK) != 0) { 120777dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "can't access fsfreeze hook '%s'", hook); 1208ec0f694cSTomoki Sekiyama return; 1209ec0f694cSTomoki Sekiyama } 1210ec0f694cSTomoki Sekiyama 1211ec0f694cSTomoki Sekiyama slog("executing fsfreeze hook with arg '%s'", arg_str); 1212ec0f694cSTomoki Sekiyama pid = fork(); 1213ec0f694cSTomoki Sekiyama if (pid == 0) { 1214ec0f694cSTomoki Sekiyama setsid(); 1215ec0f694cSTomoki Sekiyama reopen_fd_to_null(0); 1216ec0f694cSTomoki Sekiyama reopen_fd_to_null(1); 1217ec0f694cSTomoki Sekiyama reopen_fd_to_null(2); 1218ec0f694cSTomoki Sekiyama 1219ec0f694cSTomoki Sekiyama execle(hook, hook, arg_str, NULL, environ); 1220ec0f694cSTomoki Sekiyama _exit(EXIT_FAILURE); 1221ec0f694cSTomoki Sekiyama } else if (pid < 0) { 122277dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 1223ec0f694cSTomoki Sekiyama return; 1224ec0f694cSTomoki Sekiyama } 1225ec0f694cSTomoki Sekiyama 1226ec0f694cSTomoki Sekiyama ga_wait_child(pid, &status, &local_err); 122784d18f06SMarkus Armbruster if (local_err) { 122877dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1229ec0f694cSTomoki Sekiyama return; 1230ec0f694cSTomoki Sekiyama } 1231ec0f694cSTomoki Sekiyama 1232ec0f694cSTomoki Sekiyama if (!WIFEXITED(status)) { 123377dbc81bSMarkus Armbruster error_setg(errp, "fsfreeze hook has terminated abnormally"); 1234ec0f694cSTomoki Sekiyama return; 1235ec0f694cSTomoki Sekiyama } 1236ec0f694cSTomoki Sekiyama 1237ec0f694cSTomoki Sekiyama status = WEXITSTATUS(status); 1238ec0f694cSTomoki Sekiyama if (status) { 123977dbc81bSMarkus Armbruster error_setg(errp, "fsfreeze hook has failed with status %d", status); 1240ec0f694cSTomoki Sekiyama return; 1241ec0f694cSTomoki Sekiyama } 1242ec0f694cSTomoki Sekiyama } 1243ec0f694cSTomoki Sekiyama 1244c216e5adSMichael Roth /* 1245c216e5adSMichael Roth * Return status of freeze/thaw 1246c216e5adSMichael Roth */ 124777dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1248c216e5adSMichael Roth { 1249f22d85e9SMichael Roth if (ga_is_frozen(ga_state)) { 1250f22d85e9SMichael Roth return GUEST_FSFREEZE_STATUS_FROZEN; 1251f22d85e9SMichael Roth } 1252f22d85e9SMichael Roth 1253f22d85e9SMichael Roth return GUEST_FSFREEZE_STATUS_THAWED; 1254c216e5adSMichael Roth } 1255c216e5adSMichael Roth 1256e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1257e99bce20STomoki Sekiyama { 1258e99bce20STomoki Sekiyama return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1259e99bce20STomoki Sekiyama } 1260e99bce20STomoki Sekiyama 1261c216e5adSMichael Roth /* 1262c216e5adSMichael Roth * Walk list of mounted file systems in the guest, and freeze the ones which 1263c216e5adSMichael Roth * are real local file systems. 1264c216e5adSMichael Roth */ 1265e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1266e99bce20STomoki Sekiyama strList *mountpoints, 1267e99bce20STomoki Sekiyama Error **errp) 1268c216e5adSMichael Roth { 1269c216e5adSMichael Roth int ret = 0, i = 0; 1270e99bce20STomoki Sekiyama strList *list; 1271af02203fSPaolo Bonzini FsMountList mounts; 1272af02203fSPaolo Bonzini struct FsMount *mount; 1273261551d1SLuiz Capitulino Error *local_err = NULL; 1274c216e5adSMichael Roth int fd; 1275c216e5adSMichael Roth 1276c216e5adSMichael Roth slog("guest-fsfreeze called"); 1277c216e5adSMichael Roth 1278ec0f694cSTomoki Sekiyama execute_fsfreeze_hook(FSFREEZE_HOOK_FREEZE, &local_err); 127984d18f06SMarkus Armbruster if (local_err) { 128077dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1281ec0f694cSTomoki Sekiyama return -1; 1282ec0f694cSTomoki Sekiyama } 1283ec0f694cSTomoki Sekiyama 12849e8aded4SMichael Roth QTAILQ_INIT(&mounts); 1285261551d1SLuiz Capitulino build_fs_mount_list(&mounts, &local_err); 128684d18f06SMarkus Armbruster if (local_err) { 128777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1288261551d1SLuiz Capitulino return -1; 1289c216e5adSMichael Roth } 1290c216e5adSMichael Roth 1291c216e5adSMichael Roth /* cannot risk guest agent blocking itself on a write in this state */ 1292f22d85e9SMichael Roth ga_set_frozen(ga_state); 1293c216e5adSMichael Roth 1294e5d9adbdSTomoki Sekiyama QTAILQ_FOREACH_REVERSE(mount, &mounts, FsMountList, next) { 1295e99bce20STomoki Sekiyama /* To issue fsfreeze in the reverse order of mounts, check if the 1296e99bce20STomoki Sekiyama * mount is listed in the list here */ 1297e99bce20STomoki Sekiyama if (has_mountpoints) { 1298e99bce20STomoki Sekiyama for (list = mountpoints; list; list = list->next) { 1299e99bce20STomoki Sekiyama if (strcmp(list->value, mount->dirname) == 0) { 1300e99bce20STomoki Sekiyama break; 1301e99bce20STomoki Sekiyama } 1302e99bce20STomoki Sekiyama } 1303e99bce20STomoki Sekiyama if (!list) { 1304e99bce20STomoki Sekiyama continue; 1305e99bce20STomoki Sekiyama } 1306e99bce20STomoki Sekiyama } 1307e99bce20STomoki Sekiyama 1308c216e5adSMichael Roth fd = qemu_open(mount->dirname, O_RDONLY); 1309c216e5adSMichael Roth if (fd == -1) { 131077dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to open %s", mount->dirname); 1311c216e5adSMichael Roth goto error; 1312c216e5adSMichael Roth } 1313c216e5adSMichael Roth 1314e35916acSMichael Tokarev /* we try to cull filesystems we know won't work in advance, but other 1315e35916acSMichael Tokarev * filesystems may not implement fsfreeze for less obvious reasons. 13169e8aded4SMichael Roth * these will report EOPNOTSUPP. we simply ignore these when tallying 13179e8aded4SMichael Roth * the number of frozen filesystems. 1318ce2eb6c4SPeter Lieven * if a filesystem is mounted more than once (aka bind mount) a 1319ce2eb6c4SPeter Lieven * consecutive attempt to freeze an already frozen filesystem will 1320ce2eb6c4SPeter Lieven * return EBUSY. 13219e8aded4SMichael Roth * 13229e8aded4SMichael Roth * any other error means a failure to freeze a filesystem we 13239e8aded4SMichael Roth * expect to be freezable, so return an error in those cases 13249e8aded4SMichael Roth * and return system to thawed state. 1325c216e5adSMichael Roth */ 1326c216e5adSMichael Roth ret = ioctl(fd, FIFREEZE); 13279e8aded4SMichael Roth if (ret == -1) { 1328ce2eb6c4SPeter Lieven if (errno != EOPNOTSUPP && errno != EBUSY) { 132977dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to freeze %s", 1330617fbbc1SLuiz Capitulino mount->dirname); 1331c216e5adSMichael Roth close(fd); 1332c216e5adSMichael Roth goto error; 1333c216e5adSMichael Roth } 13349e8aded4SMichael Roth } else { 1335c216e5adSMichael Roth i++; 1336c216e5adSMichael Roth } 13379e8aded4SMichael Roth close(fd); 13389e8aded4SMichael Roth } 1339c216e5adSMichael Roth 1340af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 134165650f01SChen Hanxiao /* We may not issue any FIFREEZE here. 134265650f01SChen Hanxiao * Just unset ga_state here and ready for the next call. 134365650f01SChen Hanxiao */ 134465650f01SChen Hanxiao if (i == 0) { 134565650f01SChen Hanxiao ga_unset_frozen(ga_state); 134665650f01SChen Hanxiao } 1347c216e5adSMichael Roth return i; 1348c216e5adSMichael Roth 1349c216e5adSMichael Roth error: 1350af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 1351c216e5adSMichael Roth qmp_guest_fsfreeze_thaw(NULL); 1352c216e5adSMichael Roth return 0; 1353c216e5adSMichael Roth } 1354c216e5adSMichael Roth 1355c216e5adSMichael Roth /* 1356c216e5adSMichael Roth * Walk list of frozen file systems in the guest, and thaw them. 1357c216e5adSMichael Roth */ 135877dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1359c216e5adSMichael Roth { 1360c216e5adSMichael Roth int ret; 1361af02203fSPaolo Bonzini FsMountList mounts; 1362af02203fSPaolo Bonzini FsMount *mount; 13639e8aded4SMichael Roth int fd, i = 0, logged; 1364261551d1SLuiz Capitulino Error *local_err = NULL; 1365c216e5adSMichael Roth 13669e8aded4SMichael Roth QTAILQ_INIT(&mounts); 1367261551d1SLuiz Capitulino build_fs_mount_list(&mounts, &local_err); 136884d18f06SMarkus Armbruster if (local_err) { 136977dbc81bSMarkus Armbruster error_propagate(errp, local_err); 13709e8aded4SMichael Roth return 0; 13719e8aded4SMichael Roth } 13729e8aded4SMichael Roth 13739e8aded4SMichael Roth QTAILQ_FOREACH(mount, &mounts, next) { 13749e8aded4SMichael Roth logged = false; 1375c216e5adSMichael Roth fd = qemu_open(mount->dirname, O_RDONLY); 1376c216e5adSMichael Roth if (fd == -1) { 1377c216e5adSMichael Roth continue; 1378c216e5adSMichael Roth } 13799e8aded4SMichael Roth /* we have no way of knowing whether a filesystem was actually unfrozen 13809e8aded4SMichael Roth * as a result of a successful call to FITHAW, only that if an error 13819e8aded4SMichael Roth * was returned the filesystem was *not* unfrozen by that particular 13829e8aded4SMichael Roth * call. 13839e8aded4SMichael Roth * 1384a31f0531SJim Meyering * since multiple preceding FIFREEZEs require multiple calls to FITHAW 13859e8aded4SMichael Roth * to unfreeze, continuing issuing FITHAW until an error is returned, 13869e8aded4SMichael Roth * in which case either the filesystem is in an unfreezable state, or, 13879e8aded4SMichael Roth * more likely, it was thawed previously (and remains so afterward). 13889e8aded4SMichael Roth * 13899e8aded4SMichael Roth * also, since the most recent successful call is the one that did 13909e8aded4SMichael Roth * the actual unfreeze, we can use this to provide an accurate count 13919e8aded4SMichael Roth * of the number of filesystems unfrozen by guest-fsfreeze-thaw, which 13929e8aded4SMichael Roth * may * be useful for determining whether a filesystem was unfrozen 13939e8aded4SMichael Roth * during the freeze/thaw phase by a process other than qemu-ga. 13949e8aded4SMichael Roth */ 13959e8aded4SMichael Roth do { 1396c216e5adSMichael Roth ret = ioctl(fd, FITHAW); 13979e8aded4SMichael Roth if (ret == 0 && !logged) { 1398c216e5adSMichael Roth i++; 13999e8aded4SMichael Roth logged = true; 14009e8aded4SMichael Roth } 14019e8aded4SMichael Roth } while (ret == 0); 14029e8aded4SMichael Roth close(fd); 1403c216e5adSMichael Roth } 1404c216e5adSMichael Roth 1405f22d85e9SMichael Roth ga_unset_frozen(ga_state); 1406af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 1407ec0f694cSTomoki Sekiyama 140877dbc81bSMarkus Armbruster execute_fsfreeze_hook(FSFREEZE_HOOK_THAW, errp); 1409ec0f694cSTomoki Sekiyama 1410c216e5adSMichael Roth return i; 1411c216e5adSMichael Roth } 1412c216e5adSMichael Roth 1413c216e5adSMichael Roth static void guest_fsfreeze_cleanup(void) 1414c216e5adSMichael Roth { 1415c216e5adSMichael Roth Error *err = NULL; 1416c216e5adSMichael Roth 1417f22d85e9SMichael Roth if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 14186f686749SMarkus Armbruster qmp_guest_fsfreeze_thaw(&err); 14196f686749SMarkus Armbruster if (err) { 14206f686749SMarkus Armbruster slog("failed to clean up frozen filesystems: %s", 14216f686749SMarkus Armbruster error_get_pretty(err)); 14226f686749SMarkus Armbruster error_free(err); 1423c216e5adSMichael Roth } 1424c216e5adSMichael Roth } 1425c216e5adSMichael Roth } 1426e72c3f2eSMichael Roth #endif /* CONFIG_FSFREEZE */ 1427c216e5adSMichael Roth 1428eab5fd59SPaolo Bonzini #if defined(CONFIG_FSTRIM) 1429eab5fd59SPaolo Bonzini /* 1430eab5fd59SPaolo Bonzini * Walk list of mounted file systems in the guest, and trim them. 1431eab5fd59SPaolo Bonzini */ 1432e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 1433e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1434eab5fd59SPaolo Bonzini { 1435e82855d9SJustin Ossevoort GuestFilesystemTrimResponse *response; 1436e82855d9SJustin Ossevoort GuestFilesystemTrimResultList *list; 1437e82855d9SJustin Ossevoort GuestFilesystemTrimResult *result; 1438eab5fd59SPaolo Bonzini int ret = 0; 1439eab5fd59SPaolo Bonzini FsMountList mounts; 1440eab5fd59SPaolo Bonzini struct FsMount *mount; 1441eab5fd59SPaolo Bonzini int fd; 1442261551d1SLuiz Capitulino Error *local_err = NULL; 144373a652a1SJustin Ossevoort struct fstrim_range r; 1444eab5fd59SPaolo Bonzini 1445eab5fd59SPaolo Bonzini slog("guest-fstrim called"); 1446eab5fd59SPaolo Bonzini 1447eab5fd59SPaolo Bonzini QTAILQ_INIT(&mounts); 1448261551d1SLuiz Capitulino build_fs_mount_list(&mounts, &local_err); 144984d18f06SMarkus Armbruster if (local_err) { 145077dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1451e82855d9SJustin Ossevoort return NULL; 1452eab5fd59SPaolo Bonzini } 1453eab5fd59SPaolo Bonzini 1454e82855d9SJustin Ossevoort response = g_malloc0(sizeof(*response)); 1455e82855d9SJustin Ossevoort 1456eab5fd59SPaolo Bonzini QTAILQ_FOREACH(mount, &mounts, next) { 1457e82855d9SJustin Ossevoort result = g_malloc0(sizeof(*result)); 1458e82855d9SJustin Ossevoort result->path = g_strdup(mount->dirname); 1459e82855d9SJustin Ossevoort 1460e82855d9SJustin Ossevoort list = g_malloc0(sizeof(*list)); 1461e82855d9SJustin Ossevoort list->value = result; 1462e82855d9SJustin Ossevoort list->next = response->paths; 1463e82855d9SJustin Ossevoort response->paths = list; 1464e82855d9SJustin Ossevoort 1465eab5fd59SPaolo Bonzini fd = qemu_open(mount->dirname, O_RDONLY); 1466eab5fd59SPaolo Bonzini if (fd == -1) { 1467e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to open: %s", 1468e82855d9SJustin Ossevoort strerror(errno)); 1469e82855d9SJustin Ossevoort result->has_error = true; 1470e82855d9SJustin Ossevoort continue; 1471eab5fd59SPaolo Bonzini } 1472eab5fd59SPaolo Bonzini 1473e35916acSMichael Tokarev /* We try to cull filesystems we know won't work in advance, but other 1474e35916acSMichael Tokarev * filesystems may not implement fstrim for less obvious reasons. 1475e35916acSMichael Tokarev * These will report EOPNOTSUPP; while in some other cases ENOTTY 1476e35916acSMichael Tokarev * will be reported (e.g. CD-ROMs). 1477e82855d9SJustin Ossevoort * Any other error means an unexpected error. 1478eab5fd59SPaolo Bonzini */ 147973a652a1SJustin Ossevoort r.start = 0; 148073a652a1SJustin Ossevoort r.len = -1; 148173a652a1SJustin Ossevoort r.minlen = has_minimum ? minimum : 0; 1482eab5fd59SPaolo Bonzini ret = ioctl(fd, FITRIM, &r); 1483eab5fd59SPaolo Bonzini if (ret == -1) { 1484e82855d9SJustin Ossevoort result->has_error = true; 1485e82855d9SJustin Ossevoort if (errno == ENOTTY || errno == EOPNOTSUPP) { 1486e82855d9SJustin Ossevoort result->error = g_strdup("trim not supported"); 1487e82855d9SJustin Ossevoort } else { 1488e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to trim: %s", 1489e82855d9SJustin Ossevoort strerror(errno)); 1490e82855d9SJustin Ossevoort } 1491eab5fd59SPaolo Bonzini close(fd); 1492e82855d9SJustin Ossevoort continue; 1493eab5fd59SPaolo Bonzini } 1494e82855d9SJustin Ossevoort 1495e82855d9SJustin Ossevoort result->has_minimum = true; 1496e82855d9SJustin Ossevoort result->minimum = r.minlen; 1497e82855d9SJustin Ossevoort result->has_trimmed = true; 1498e82855d9SJustin Ossevoort result->trimmed = r.len; 1499eab5fd59SPaolo Bonzini close(fd); 1500eab5fd59SPaolo Bonzini } 1501eab5fd59SPaolo Bonzini 1502eab5fd59SPaolo Bonzini free_fs_mount_list(&mounts); 1503e82855d9SJustin Ossevoort return response; 1504eab5fd59SPaolo Bonzini } 1505eab5fd59SPaolo Bonzini #endif /* CONFIG_FSTRIM */ 1506eab5fd59SPaolo Bonzini 1507eab5fd59SPaolo Bonzini 150811d0f125SLuiz Capitulino #define LINUX_SYS_STATE_FILE "/sys/power/state" 150911d0f125SLuiz Capitulino #define SUSPEND_SUPPORTED 0 151011d0f125SLuiz Capitulino #define SUSPEND_NOT_SUPPORTED 1 151111d0f125SLuiz Capitulino 15128b020b5eSDaniel Henrique Barboza typedef enum { 15138b020b5eSDaniel Henrique Barboza SUSPEND_MODE_DISK = 0, 15148b020b5eSDaniel Henrique Barboza SUSPEND_MODE_RAM = 1, 15158b020b5eSDaniel Henrique Barboza SUSPEND_MODE_HYBRID = 2, 15168b020b5eSDaniel Henrique Barboza } SuspendMode; 15178b020b5eSDaniel Henrique Barboza 15188b020b5eSDaniel Henrique Barboza /* 15198b020b5eSDaniel Henrique Barboza * Executes a command in a child process using g_spawn_sync, 15208b020b5eSDaniel Henrique Barboza * returning an int >= 0 representing the exit status of the 15218b020b5eSDaniel Henrique Barboza * process. 15228b020b5eSDaniel Henrique Barboza * 15238b020b5eSDaniel Henrique Barboza * If the program wasn't found in path, returns -1. 15248b020b5eSDaniel Henrique Barboza * 15258b020b5eSDaniel Henrique Barboza * If a problem happened when creating the child process, 15268b020b5eSDaniel Henrique Barboza * returns -1 and errp is set. 15278b020b5eSDaniel Henrique Barboza */ 15288b020b5eSDaniel Henrique Barboza static int run_process_child(const char *command[], Error **errp) 15298b020b5eSDaniel Henrique Barboza { 15308b020b5eSDaniel Henrique Barboza int exit_status, spawn_flag; 15318b020b5eSDaniel Henrique Barboza GError *g_err = NULL; 15328b020b5eSDaniel Henrique Barboza bool success; 15338b020b5eSDaniel Henrique Barboza 15348b020b5eSDaniel Henrique Barboza spawn_flag = G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | 15358b020b5eSDaniel Henrique Barboza G_SPAWN_STDERR_TO_DEV_NULL; 15368b020b5eSDaniel Henrique Barboza 15378b020b5eSDaniel Henrique Barboza success = g_spawn_sync(NULL, (char **)command, environ, spawn_flag, 15388b020b5eSDaniel Henrique Barboza NULL, NULL, NULL, NULL, 15398b020b5eSDaniel Henrique Barboza &exit_status, &g_err); 15408b020b5eSDaniel Henrique Barboza 15418b020b5eSDaniel Henrique Barboza if (success) { 15428b020b5eSDaniel Henrique Barboza return WEXITSTATUS(exit_status); 15438b020b5eSDaniel Henrique Barboza } 15448b020b5eSDaniel Henrique Barboza 15458b020b5eSDaniel Henrique Barboza if (g_err && (g_err->code != G_SPAWN_ERROR_NOENT)) { 15468b020b5eSDaniel Henrique Barboza error_setg(errp, "failed to create child process, error '%s'", 15478b020b5eSDaniel Henrique Barboza g_err->message); 15488b020b5eSDaniel Henrique Barboza } 15498b020b5eSDaniel Henrique Barboza 15508b020b5eSDaniel Henrique Barboza g_error_free(g_err); 15518b020b5eSDaniel Henrique Barboza return -1; 15528b020b5eSDaniel Henrique Barboza } 15538b020b5eSDaniel Henrique Barboza 1554067927d6SDaniel Henrique Barboza static bool systemd_supports_mode(SuspendMode mode, Error **errp) 1555067927d6SDaniel Henrique Barboza { 1556067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1557067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"systemd-hibernate", "systemd-suspend", 1558067927d6SDaniel Henrique Barboza "systemd-hybrid-sleep"}; 1559067927d6SDaniel Henrique Barboza const char *cmd[4] = {"systemctl", "status", systemctl_args[mode], NULL}; 1560067927d6SDaniel Henrique Barboza int status; 1561067927d6SDaniel Henrique Barboza 1562067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1563067927d6SDaniel Henrique Barboza 1564067927d6SDaniel Henrique Barboza /* 1565067927d6SDaniel Henrique Barboza * systemctl status uses LSB return codes so we can expect 1566067927d6SDaniel Henrique Barboza * status > 0 and be ok. To assert if the guest has support 1567067927d6SDaniel Henrique Barboza * for the selected suspend mode, status should be < 4. 4 is 1568067927d6SDaniel Henrique Barboza * the code for unknown service status, the return value when 1569067927d6SDaniel Henrique Barboza * the service does not exist. A common value is status = 3 1570067927d6SDaniel Henrique Barboza * (program is not running). 1571067927d6SDaniel Henrique Barboza */ 1572067927d6SDaniel Henrique Barboza if (status > 0 && status < 4) { 1573067927d6SDaniel Henrique Barboza return true; 1574067927d6SDaniel Henrique Barboza } 1575067927d6SDaniel Henrique Barboza 1576067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1577067927d6SDaniel Henrique Barboza return false; 1578067927d6SDaniel Henrique Barboza } 1579067927d6SDaniel Henrique Barboza 1580067927d6SDaniel Henrique Barboza static void systemd_suspend(SuspendMode mode, Error **errp) 1581067927d6SDaniel Henrique Barboza { 1582067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1583067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"hibernate", "suspend", "hybrid-sleep"}; 1584067927d6SDaniel Henrique Barboza const char *cmd[3] = {"systemctl", systemctl_args[mode], NULL}; 1585067927d6SDaniel Henrique Barboza int status; 1586067927d6SDaniel Henrique Barboza 1587067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1588067927d6SDaniel Henrique Barboza 1589067927d6SDaniel Henrique Barboza if (status == 0) { 1590067927d6SDaniel Henrique Barboza return; 1591067927d6SDaniel Henrique Barboza } 1592067927d6SDaniel Henrique Barboza 1593067927d6SDaniel Henrique Barboza if ((status == -1) && !local_err) { 1594067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' was not found", 1595067927d6SDaniel Henrique Barboza systemctl_args[mode]); 1596067927d6SDaniel Henrique Barboza return; 1597067927d6SDaniel Henrique Barboza } 1598067927d6SDaniel Henrique Barboza 1599067927d6SDaniel Henrique Barboza if (local_err) { 1600067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1601067927d6SDaniel Henrique Barboza } else { 1602067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' returned an " 1603067927d6SDaniel Henrique Barboza "unexpected exit status code (%d)", 1604067927d6SDaniel Henrique Barboza systemctl_args[mode], status); 1605067927d6SDaniel Henrique Barboza } 1606067927d6SDaniel Henrique Barboza } 1607067927d6SDaniel Henrique Barboza 16088b020b5eSDaniel Henrique Barboza static bool pmutils_supports_mode(SuspendMode mode, Error **errp) 160911d0f125SLuiz Capitulino { 16106b26e837SLuiz Capitulino Error *local_err = NULL; 16118b020b5eSDaniel Henrique Barboza const char *pmutils_args[3] = {"--hibernate", "--suspend", 16128b020b5eSDaniel Henrique Barboza "--suspend-hybrid"}; 16138b020b5eSDaniel Henrique Barboza const char *cmd[3] = {"pm-is-supported", pmutils_args[mode], NULL}; 1614dc8764f0SLuiz Capitulino int status; 161511d0f125SLuiz Capitulino 16168b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1617304a0fcbSDaniel Henrique Barboza 16188b020b5eSDaniel Henrique Barboza if (status == SUSPEND_SUPPORTED) { 16198b020b5eSDaniel Henrique Barboza return true; 1620304a0fcbSDaniel Henrique Barboza } 1621304a0fcbSDaniel Henrique Barboza 16228b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 16238b020b5eSDaniel Henrique Barboza return false; 1624a5fcf0e3SDaniel Henrique Barboza } 162511d0f125SLuiz Capitulino 162684d18f06SMarkus Armbruster if (local_err) { 162777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 16288b020b5eSDaniel Henrique Barboza } else { 162977dbc81bSMarkus Armbruster error_setg(errp, 16308b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 16318b020b5eSDaniel Henrique Barboza " status code (%d)", "pm-is-supported", status); 1632dc8764f0SLuiz Capitulino } 163311d0f125SLuiz Capitulino 16348b020b5eSDaniel Henrique Barboza return false; 1635a5fcf0e3SDaniel Henrique Barboza } 1636a5fcf0e3SDaniel Henrique Barboza 16378b020b5eSDaniel Henrique Barboza static void pmutils_suspend(SuspendMode mode, Error **errp) 1638246d76ebSDaniel Henrique Barboza { 1639246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 16408b020b5eSDaniel Henrique Barboza const char *pmutils_binaries[3] = {"pm-hibernate", "pm-suspend", 16418b020b5eSDaniel Henrique Barboza "pm-suspend-hybrid"}; 16428b020b5eSDaniel Henrique Barboza const char *cmd[2] = {pmutils_binaries[mode], NULL}; 1643246d76ebSDaniel Henrique Barboza int status; 1644246d76ebSDaniel Henrique Barboza 16458b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1646246d76ebSDaniel Henrique Barboza 16478b020b5eSDaniel Henrique Barboza if (status == 0) { 1648246d76ebSDaniel Henrique Barboza return; 1649246d76ebSDaniel Henrique Barboza } 1650246d76ebSDaniel Henrique Barboza 16518b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 16528b020b5eSDaniel Henrique Barboza error_setg(errp, "the helper program '%s' was not found", 16538b020b5eSDaniel Henrique Barboza pmutils_binaries[mode]); 1654246d76ebSDaniel Henrique Barboza return; 1655246d76ebSDaniel Henrique Barboza } 1656246d76ebSDaniel Henrique Barboza 1657246d76ebSDaniel Henrique Barboza if (local_err) { 1658246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 16598b020b5eSDaniel Henrique Barboza } else { 1660246d76ebSDaniel Henrique Barboza error_setg(errp, 16618b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 16628b020b5eSDaniel Henrique Barboza " status code (%d)", pmutils_binaries[mode], status); 16638b020b5eSDaniel Henrique Barboza } 1664246d76ebSDaniel Henrique Barboza } 1665246d76ebSDaniel Henrique Barboza 16668b020b5eSDaniel Henrique Barboza static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) 1667a5fcf0e3SDaniel Henrique Barboza { 16688b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 16698b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1670a5fcf0e3SDaniel Henrique Barboza char buf[32]; /* hopefully big enough */ 1671a5fcf0e3SDaniel Henrique Barboza int fd; 1672a5fcf0e3SDaniel Henrique Barboza ssize_t ret; 1673a5fcf0e3SDaniel Henrique Barboza 16748b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 16758b020b5eSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1676a5fcf0e3SDaniel Henrique Barboza return false; 1677a5fcf0e3SDaniel Henrique Barboza } 1678a5fcf0e3SDaniel Henrique Barboza 1679a5fcf0e3SDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_RDONLY); 1680a5fcf0e3SDaniel Henrique Barboza if (fd < 0) { 1681a5fcf0e3SDaniel Henrique Barboza return false; 1682a5fcf0e3SDaniel Henrique Barboza } 1683a5fcf0e3SDaniel Henrique Barboza 1684a5fcf0e3SDaniel Henrique Barboza ret = read(fd, buf, sizeof(buf) - 1); 1685d9c745c1SPaolo Bonzini close(fd); 1686a5fcf0e3SDaniel Henrique Barboza if (ret <= 0) { 1687a5fcf0e3SDaniel Henrique Barboza return false; 1688a5fcf0e3SDaniel Henrique Barboza } 1689a5fcf0e3SDaniel Henrique Barboza buf[ret] = '\0'; 1690a5fcf0e3SDaniel Henrique Barboza 1691a5fcf0e3SDaniel Henrique Barboza if (strstr(buf, sysfile_str)) { 1692a5fcf0e3SDaniel Henrique Barboza return true; 1693a5fcf0e3SDaniel Henrique Barboza } 1694a5fcf0e3SDaniel Henrique Barboza return false; 1695a5fcf0e3SDaniel Henrique Barboza } 1696a5fcf0e3SDaniel Henrique Barboza 16978b020b5eSDaniel Henrique Barboza static void linux_sys_state_suspend(SuspendMode mode, Error **errp) 1698246d76ebSDaniel Henrique Barboza { 1699246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 17008b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 17018b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1702246d76ebSDaniel Henrique Barboza pid_t pid; 1703246d76ebSDaniel Henrique Barboza int status; 1704246d76ebSDaniel Henrique Barboza 17058b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 1706246d76ebSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1707246d76ebSDaniel Henrique Barboza return; 1708246d76ebSDaniel Henrique Barboza } 1709246d76ebSDaniel Henrique Barboza 1710246d76ebSDaniel Henrique Barboza pid = fork(); 1711246d76ebSDaniel Henrique Barboza if (!pid) { 1712246d76ebSDaniel Henrique Barboza /* child */ 1713246d76ebSDaniel Henrique Barboza int fd; 1714246d76ebSDaniel Henrique Barboza 1715246d76ebSDaniel Henrique Barboza setsid(); 1716246d76ebSDaniel Henrique Barboza reopen_fd_to_null(0); 1717246d76ebSDaniel Henrique Barboza reopen_fd_to_null(1); 1718246d76ebSDaniel Henrique Barboza reopen_fd_to_null(2); 1719246d76ebSDaniel Henrique Barboza 1720246d76ebSDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_WRONLY); 1721246d76ebSDaniel Henrique Barboza if (fd < 0) { 1722246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1723246d76ebSDaniel Henrique Barboza } 1724246d76ebSDaniel Henrique Barboza 1725246d76ebSDaniel Henrique Barboza if (write(fd, sysfile_str, strlen(sysfile_str)) < 0) { 1726246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1727246d76ebSDaniel Henrique Barboza } 1728246d76ebSDaniel Henrique Barboza 1729246d76ebSDaniel Henrique Barboza _exit(EXIT_SUCCESS); 1730246d76ebSDaniel Henrique Barboza } else if (pid < 0) { 1731246d76ebSDaniel Henrique Barboza error_setg_errno(errp, errno, "failed to create child process"); 1732246d76ebSDaniel Henrique Barboza return; 1733246d76ebSDaniel Henrique Barboza } 1734246d76ebSDaniel Henrique Barboza 1735246d76ebSDaniel Henrique Barboza ga_wait_child(pid, &status, &local_err); 1736246d76ebSDaniel Henrique Barboza if (local_err) { 1737246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 1738246d76ebSDaniel Henrique Barboza return; 1739246d76ebSDaniel Henrique Barboza } 1740246d76ebSDaniel Henrique Barboza 1741246d76ebSDaniel Henrique Barboza if (WEXITSTATUS(status)) { 1742246d76ebSDaniel Henrique Barboza error_setg(errp, "child process has failed to suspend"); 1743246d76ebSDaniel Henrique Barboza } 1744246d76ebSDaniel Henrique Barboza 1745246d76ebSDaniel Henrique Barboza } 1746246d76ebSDaniel Henrique Barboza 17478b020b5eSDaniel Henrique Barboza static void guest_suspend(SuspendMode mode, Error **errp) 174811d0f125SLuiz Capitulino { 17497b376087SLuiz Capitulino Error *local_err = NULL; 175073e1d8ebSDaniel Henrique Barboza bool mode_supported = false; 175111d0f125SLuiz Capitulino 175273e1d8ebSDaniel Henrique Barboza if (systemd_supports_mode(mode, &local_err)) { 175373e1d8ebSDaniel Henrique Barboza mode_supported = true; 1754067927d6SDaniel Henrique Barboza systemd_suspend(mode, &local_err); 175573e1d8ebSDaniel Henrique Barboza } 175673e1d8ebSDaniel Henrique Barboza 1757067927d6SDaniel Henrique Barboza if (!local_err) { 1758067927d6SDaniel Henrique Barboza return; 1759067927d6SDaniel Henrique Barboza } 1760067927d6SDaniel Henrique Barboza 1761067927d6SDaniel Henrique Barboza error_free(local_err); 1762067927d6SDaniel Henrique Barboza 176373e1d8ebSDaniel Henrique Barboza if (pmutils_supports_mode(mode, &local_err)) { 176473e1d8ebSDaniel Henrique Barboza mode_supported = true; 17658b020b5eSDaniel Henrique Barboza pmutils_suspend(mode, &local_err); 176673e1d8ebSDaniel Henrique Barboza } 176773e1d8ebSDaniel Henrique Barboza 1768246d76ebSDaniel Henrique Barboza if (!local_err) { 1769304a0fcbSDaniel Henrique Barboza return; 1770304a0fcbSDaniel Henrique Barboza } 1771304a0fcbSDaniel Henrique Barboza 1772246d76ebSDaniel Henrique Barboza error_free(local_err); 177311d0f125SLuiz Capitulino 177473e1d8ebSDaniel Henrique Barboza if (linux_sys_state_supports_mode(mode, &local_err)) { 177573e1d8ebSDaniel Henrique Barboza mode_supported = true; 17768b020b5eSDaniel Henrique Barboza linux_sys_state_suspend(mode, &local_err); 177773e1d8ebSDaniel Henrique Barboza } 177873e1d8ebSDaniel Henrique Barboza 177973e1d8ebSDaniel Henrique Barboza if (!mode_supported) { 178073e1d8ebSDaniel Henrique Barboza error_setg(errp, 178173e1d8ebSDaniel Henrique Barboza "the requested suspend mode is not supported by the guest"); 1782*b2322003SMarkus Armbruster } else { 178377dbc81bSMarkus Armbruster error_propagate(errp, local_err); 17847b376087SLuiz Capitulino } 178511d0f125SLuiz Capitulino } 178611d0f125SLuiz Capitulino 178777dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 178811d0f125SLuiz Capitulino { 1789304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_DISK, errp); 179011d0f125SLuiz Capitulino } 179111d0f125SLuiz Capitulino 179277dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 1793fbf42210SLuiz Capitulino { 1794304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_RAM, errp); 1795fbf42210SLuiz Capitulino } 1796fbf42210SLuiz Capitulino 179777dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 179895f4f404SLuiz Capitulino { 1799304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_HYBRID, errp); 180095f4f404SLuiz Capitulino } 180195f4f404SLuiz Capitulino 18023424fc9fSMichal Privoznik static GuestNetworkInterfaceList * 18033424fc9fSMichal Privoznik guest_find_interface(GuestNetworkInterfaceList *head, 18043424fc9fSMichal Privoznik const char *name) 18053424fc9fSMichal Privoznik { 18063424fc9fSMichal Privoznik for (; head; head = head->next) { 18073424fc9fSMichal Privoznik if (strcmp(head->value->name, name) == 0) { 18083424fc9fSMichal Privoznik break; 18093424fc9fSMichal Privoznik } 18103424fc9fSMichal Privoznik } 18113424fc9fSMichal Privoznik 18123424fc9fSMichal Privoznik return head; 18133424fc9fSMichal Privoznik } 18143424fc9fSMichal Privoznik 181553f9fcb2SZhiPeng Lu static int guest_get_network_stats(const char *name, 181653f9fcb2SZhiPeng Lu GuestNetworkInterfaceStat *stats) 181753f9fcb2SZhiPeng Lu { 181853f9fcb2SZhiPeng Lu int name_len; 181953f9fcb2SZhiPeng Lu char const *devinfo = "/proc/net/dev"; 182053f9fcb2SZhiPeng Lu FILE *fp; 182153f9fcb2SZhiPeng Lu char *line = NULL, *colon; 182253f9fcb2SZhiPeng Lu size_t n = 0; 182353f9fcb2SZhiPeng Lu fp = fopen(devinfo, "r"); 182453f9fcb2SZhiPeng Lu if (!fp) { 182553f9fcb2SZhiPeng Lu return -1; 182653f9fcb2SZhiPeng Lu } 182753f9fcb2SZhiPeng Lu name_len = strlen(name); 182853f9fcb2SZhiPeng Lu while (getline(&line, &n, fp) != -1) { 182953f9fcb2SZhiPeng Lu long long dummy; 183053f9fcb2SZhiPeng Lu long long rx_bytes; 183153f9fcb2SZhiPeng Lu long long rx_packets; 183253f9fcb2SZhiPeng Lu long long rx_errs; 183353f9fcb2SZhiPeng Lu long long rx_dropped; 183453f9fcb2SZhiPeng Lu long long tx_bytes; 183553f9fcb2SZhiPeng Lu long long tx_packets; 183653f9fcb2SZhiPeng Lu long long tx_errs; 183753f9fcb2SZhiPeng Lu long long tx_dropped; 183853f9fcb2SZhiPeng Lu char *trim_line; 183953f9fcb2SZhiPeng Lu trim_line = g_strchug(line); 184053f9fcb2SZhiPeng Lu if (trim_line[0] == '\0') { 184153f9fcb2SZhiPeng Lu continue; 184253f9fcb2SZhiPeng Lu } 184353f9fcb2SZhiPeng Lu colon = strchr(trim_line, ':'); 184453f9fcb2SZhiPeng Lu if (!colon) { 184553f9fcb2SZhiPeng Lu continue; 184653f9fcb2SZhiPeng Lu } 184753f9fcb2SZhiPeng Lu if (colon - name_len == trim_line && 184853f9fcb2SZhiPeng Lu strncmp(trim_line, name, name_len) == 0) { 184953f9fcb2SZhiPeng Lu if (sscanf(colon + 1, 185053f9fcb2SZhiPeng Lu "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld", 185153f9fcb2SZhiPeng Lu &rx_bytes, &rx_packets, &rx_errs, &rx_dropped, 185253f9fcb2SZhiPeng Lu &dummy, &dummy, &dummy, &dummy, 185353f9fcb2SZhiPeng Lu &tx_bytes, &tx_packets, &tx_errs, &tx_dropped, 185453f9fcb2SZhiPeng Lu &dummy, &dummy, &dummy, &dummy) != 16) { 185553f9fcb2SZhiPeng Lu continue; 185653f9fcb2SZhiPeng Lu } 185753f9fcb2SZhiPeng Lu stats->rx_bytes = rx_bytes; 185853f9fcb2SZhiPeng Lu stats->rx_packets = rx_packets; 185953f9fcb2SZhiPeng Lu stats->rx_errs = rx_errs; 186053f9fcb2SZhiPeng Lu stats->rx_dropped = rx_dropped; 186153f9fcb2SZhiPeng Lu stats->tx_bytes = tx_bytes; 186253f9fcb2SZhiPeng Lu stats->tx_packets = tx_packets; 186353f9fcb2SZhiPeng Lu stats->tx_errs = tx_errs; 186453f9fcb2SZhiPeng Lu stats->tx_dropped = tx_dropped; 186553f9fcb2SZhiPeng Lu fclose(fp); 186653f9fcb2SZhiPeng Lu g_free(line); 186753f9fcb2SZhiPeng Lu return 0; 186853f9fcb2SZhiPeng Lu } 186953f9fcb2SZhiPeng Lu } 187053f9fcb2SZhiPeng Lu fclose(fp); 187153f9fcb2SZhiPeng Lu g_free(line); 187253f9fcb2SZhiPeng Lu g_debug("/proc/net/dev: Interface '%s' not found", name); 187353f9fcb2SZhiPeng Lu return -1; 187453f9fcb2SZhiPeng Lu } 187553f9fcb2SZhiPeng Lu 18763424fc9fSMichal Privoznik /* 18773424fc9fSMichal Privoznik * Build information about guest interfaces 18783424fc9fSMichal Privoznik */ 18793424fc9fSMichal Privoznik GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 18803424fc9fSMichal Privoznik { 18813424fc9fSMichal Privoznik GuestNetworkInterfaceList *head = NULL, *cur_item = NULL; 18823424fc9fSMichal Privoznik struct ifaddrs *ifap, *ifa; 18833424fc9fSMichal Privoznik 18843424fc9fSMichal Privoznik if (getifaddrs(&ifap) < 0) { 1885878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "getifaddrs failed"); 18863424fc9fSMichal Privoznik goto error; 18873424fc9fSMichal Privoznik } 18883424fc9fSMichal Privoznik 18893424fc9fSMichal Privoznik for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 18903424fc9fSMichal Privoznik GuestNetworkInterfaceList *info; 18913424fc9fSMichal Privoznik GuestIpAddressList **address_list = NULL, *address_item = NULL; 189253f9fcb2SZhiPeng Lu GuestNetworkInterfaceStat *interface_stat = NULL; 18933424fc9fSMichal Privoznik char addr4[INET_ADDRSTRLEN]; 18943424fc9fSMichal Privoznik char addr6[INET6_ADDRSTRLEN]; 18953424fc9fSMichal Privoznik int sock; 18963424fc9fSMichal Privoznik struct ifreq ifr; 18973424fc9fSMichal Privoznik unsigned char *mac_addr; 18983424fc9fSMichal Privoznik void *p; 18993424fc9fSMichal Privoznik 19003424fc9fSMichal Privoznik g_debug("Processing %s interface", ifa->ifa_name); 19013424fc9fSMichal Privoznik 19023424fc9fSMichal Privoznik info = guest_find_interface(head, ifa->ifa_name); 19033424fc9fSMichal Privoznik 19043424fc9fSMichal Privoznik if (!info) { 19053424fc9fSMichal Privoznik info = g_malloc0(sizeof(*info)); 19063424fc9fSMichal Privoznik info->value = g_malloc0(sizeof(*info->value)); 19073424fc9fSMichal Privoznik info->value->name = g_strdup(ifa->ifa_name); 19083424fc9fSMichal Privoznik 19093424fc9fSMichal Privoznik if (!cur_item) { 19103424fc9fSMichal Privoznik head = cur_item = info; 19113424fc9fSMichal Privoznik } else { 19123424fc9fSMichal Privoznik cur_item->next = info; 19133424fc9fSMichal Privoznik cur_item = info; 19143424fc9fSMichal Privoznik } 19153424fc9fSMichal Privoznik } 19163424fc9fSMichal Privoznik 19173424fc9fSMichal Privoznik if (!info->value->has_hardware_address && 19183424fc9fSMichal Privoznik ifa->ifa_flags & SIOCGIFHWADDR) { 19193424fc9fSMichal Privoznik /* we haven't obtained HW address yet */ 19203424fc9fSMichal Privoznik sock = socket(PF_INET, SOCK_STREAM, 0); 19213424fc9fSMichal Privoznik if (sock == -1) { 1922878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "failed to create socket"); 19233424fc9fSMichal Privoznik goto error; 19243424fc9fSMichal Privoznik } 19253424fc9fSMichal Privoznik 19263424fc9fSMichal Privoznik memset(&ifr, 0, sizeof(ifr)); 19271ab516edSJim Meyering pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->value->name); 19283424fc9fSMichal Privoznik if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) { 1929878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, 1930878a0ae0SLuiz Capitulino "failed to get MAC address of %s", 1931878a0ae0SLuiz Capitulino ifa->ifa_name); 193210a2158fSMarkus Armbruster close(sock); 19333424fc9fSMichal Privoznik goto error; 19343424fc9fSMichal Privoznik } 19353424fc9fSMichal Privoznik 193610a2158fSMarkus Armbruster close(sock); 19373424fc9fSMichal Privoznik mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data; 19383424fc9fSMichal Privoznik 1939e4ada482SStefan Weil info->value->hardware_address = 1940e4ada482SStefan Weil g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 19413424fc9fSMichal Privoznik (int) mac_addr[0], (int) mac_addr[1], 19423424fc9fSMichal Privoznik (int) mac_addr[2], (int) mac_addr[3], 1943e4ada482SStefan Weil (int) mac_addr[4], (int) mac_addr[5]); 19443424fc9fSMichal Privoznik 19453424fc9fSMichal Privoznik info->value->has_hardware_address = true; 19463424fc9fSMichal Privoznik } 19473424fc9fSMichal Privoznik 19483424fc9fSMichal Privoznik if (ifa->ifa_addr && 19493424fc9fSMichal Privoznik ifa->ifa_addr->sa_family == AF_INET) { 19503424fc9fSMichal Privoznik /* interface with IPv4 address */ 19513424fc9fSMichal Privoznik p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; 19523424fc9fSMichal Privoznik if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) { 1953878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "inet_ntop failed"); 19543424fc9fSMichal Privoznik goto error; 19553424fc9fSMichal Privoznik } 19563424fc9fSMichal Privoznik 195710a2158fSMarkus Armbruster address_item = g_malloc0(sizeof(*address_item)); 195810a2158fSMarkus Armbruster address_item->value = g_malloc0(sizeof(*address_item->value)); 19593424fc9fSMichal Privoznik address_item->value->ip_address = g_strdup(addr4); 19603424fc9fSMichal Privoznik address_item->value->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 19613424fc9fSMichal Privoznik 19623424fc9fSMichal Privoznik if (ifa->ifa_netmask) { 19633424fc9fSMichal Privoznik /* Count the number of set bits in netmask. 19643424fc9fSMichal Privoznik * This is safe as '1' and '0' cannot be shuffled in netmask. */ 19653424fc9fSMichal Privoznik p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr; 19663424fc9fSMichal Privoznik address_item->value->prefix = ctpop32(((uint32_t *) p)[0]); 19673424fc9fSMichal Privoznik } 19683424fc9fSMichal Privoznik } else if (ifa->ifa_addr && 19693424fc9fSMichal Privoznik ifa->ifa_addr->sa_family == AF_INET6) { 19703424fc9fSMichal Privoznik /* interface with IPv6 address */ 19713424fc9fSMichal Privoznik p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; 19723424fc9fSMichal Privoznik if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) { 1973878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "inet_ntop failed"); 19743424fc9fSMichal Privoznik goto error; 19753424fc9fSMichal Privoznik } 19763424fc9fSMichal Privoznik 197710a2158fSMarkus Armbruster address_item = g_malloc0(sizeof(*address_item)); 197810a2158fSMarkus Armbruster address_item->value = g_malloc0(sizeof(*address_item->value)); 19793424fc9fSMichal Privoznik address_item->value->ip_address = g_strdup(addr6); 19803424fc9fSMichal Privoznik address_item->value->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 19813424fc9fSMichal Privoznik 19823424fc9fSMichal Privoznik if (ifa->ifa_netmask) { 19833424fc9fSMichal Privoznik /* Count the number of set bits in netmask. 19843424fc9fSMichal Privoznik * This is safe as '1' and '0' cannot be shuffled in netmask. */ 19853424fc9fSMichal Privoznik p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; 19863424fc9fSMichal Privoznik address_item->value->prefix = 19873424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[0]) + 19883424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[1]) + 19893424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[2]) + 19903424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[3]); 19913424fc9fSMichal Privoznik } 19923424fc9fSMichal Privoznik } 19933424fc9fSMichal Privoznik 19943424fc9fSMichal Privoznik if (!address_item) { 19953424fc9fSMichal Privoznik continue; 19963424fc9fSMichal Privoznik } 19973424fc9fSMichal Privoznik 19983424fc9fSMichal Privoznik address_list = &info->value->ip_addresses; 19993424fc9fSMichal Privoznik 20003424fc9fSMichal Privoznik while (*address_list && (*address_list)->next) { 20013424fc9fSMichal Privoznik address_list = &(*address_list)->next; 20023424fc9fSMichal Privoznik } 20033424fc9fSMichal Privoznik 20043424fc9fSMichal Privoznik if (!*address_list) { 20053424fc9fSMichal Privoznik *address_list = address_item; 20063424fc9fSMichal Privoznik } else { 20073424fc9fSMichal Privoznik (*address_list)->next = address_item; 20083424fc9fSMichal Privoznik } 20093424fc9fSMichal Privoznik 20103424fc9fSMichal Privoznik info->value->has_ip_addresses = true; 20113424fc9fSMichal Privoznik 201253f9fcb2SZhiPeng Lu if (!info->value->has_statistics) { 201353f9fcb2SZhiPeng Lu interface_stat = g_malloc0(sizeof(*interface_stat)); 201453f9fcb2SZhiPeng Lu if (guest_get_network_stats(info->value->name, 201553f9fcb2SZhiPeng Lu interface_stat) == -1) { 201653f9fcb2SZhiPeng Lu info->value->has_statistics = false; 201753f9fcb2SZhiPeng Lu g_free(interface_stat); 201853f9fcb2SZhiPeng Lu } else { 201953f9fcb2SZhiPeng Lu info->value->statistics = interface_stat; 202053f9fcb2SZhiPeng Lu info->value->has_statistics = true; 202153f9fcb2SZhiPeng Lu } 202253f9fcb2SZhiPeng Lu } 20233424fc9fSMichal Privoznik } 20243424fc9fSMichal Privoznik 20253424fc9fSMichal Privoznik freeifaddrs(ifap); 20263424fc9fSMichal Privoznik return head; 20273424fc9fSMichal Privoznik 20283424fc9fSMichal Privoznik error: 20293424fc9fSMichal Privoznik freeifaddrs(ifap); 20303424fc9fSMichal Privoznik qapi_free_GuestNetworkInterfaceList(head); 20313424fc9fSMichal Privoznik return NULL; 20323424fc9fSMichal Privoznik } 20333424fc9fSMichal Privoznik 203477dbc81bSMarkus Armbruster #define SYSCONF_EXACT(name, errp) sysconf_exact((name), #name, (errp)) 2035d2baff62SLaszlo Ersek 203677dbc81bSMarkus Armbruster static long sysconf_exact(int name, const char *name_str, Error **errp) 2037d2baff62SLaszlo Ersek { 2038d2baff62SLaszlo Ersek long ret; 2039d2baff62SLaszlo Ersek 2040d2baff62SLaszlo Ersek errno = 0; 2041d2baff62SLaszlo Ersek ret = sysconf(name); 2042d2baff62SLaszlo Ersek if (ret == -1) { 2043d2baff62SLaszlo Ersek if (errno == 0) { 204477dbc81bSMarkus Armbruster error_setg(errp, "sysconf(%s): value indefinite", name_str); 2045d2baff62SLaszlo Ersek } else { 204677dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "sysconf(%s)", name_str); 2047d2baff62SLaszlo Ersek } 2048d2baff62SLaszlo Ersek } 2049d2baff62SLaszlo Ersek return ret; 2050d2baff62SLaszlo Ersek } 2051d2baff62SLaszlo Ersek 2052d2baff62SLaszlo Ersek /* Transfer online/offline status between @vcpu and the guest system. 2053d2baff62SLaszlo Ersek * 2054d2baff62SLaszlo Ersek * On input either @errp or *@errp must be NULL. 2055d2baff62SLaszlo Ersek * 2056d2baff62SLaszlo Ersek * In system-to-@vcpu direction, the following @vcpu fields are accessed: 2057d2baff62SLaszlo Ersek * - R: vcpu->logical_id 2058d2baff62SLaszlo Ersek * - W: vcpu->online 2059d2baff62SLaszlo Ersek * - W: vcpu->can_offline 2060d2baff62SLaszlo Ersek * 2061d2baff62SLaszlo Ersek * In @vcpu-to-system direction, the following @vcpu fields are accessed: 2062d2baff62SLaszlo Ersek * - R: vcpu->logical_id 2063d2baff62SLaszlo Ersek * - R: vcpu->online 2064d2baff62SLaszlo Ersek * 2065d2baff62SLaszlo Ersek * Written members remain unmodified on error. 2066d2baff62SLaszlo Ersek */ 2067d2baff62SLaszlo Ersek static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, 2068b4bf912aSIgor Mammedov char *dirpath, Error **errp) 2069d2baff62SLaszlo Ersek { 2070b4bf912aSIgor Mammedov int fd; 2071b4bf912aSIgor Mammedov int res; 2072d2baff62SLaszlo Ersek int dirfd; 2073b4bf912aSIgor Mammedov static const char fn[] = "online"; 2074d2baff62SLaszlo Ersek 2075d2baff62SLaszlo Ersek dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2076d2baff62SLaszlo Ersek if (dirfd == -1) { 2077d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2078b4bf912aSIgor Mammedov return; 2079b4bf912aSIgor Mammedov } 2080d2baff62SLaszlo Ersek 2081d2baff62SLaszlo Ersek fd = openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); 2082d2baff62SLaszlo Ersek if (fd == -1) { 2083d2baff62SLaszlo Ersek if (errno != ENOENT) { 2084d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); 2085d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2086d2baff62SLaszlo Ersek vcpu->online = true; 2087d2baff62SLaszlo Ersek vcpu->can_offline = false; 2088d2baff62SLaszlo Ersek } else if (!vcpu->online) { 2089d2baff62SLaszlo Ersek error_setg(errp, "logical processor #%" PRId64 " can't be " 2090d2baff62SLaszlo Ersek "offlined", vcpu->logical_id); 2091d2baff62SLaszlo Ersek } /* otherwise pretend successful re-onlining */ 2092d2baff62SLaszlo Ersek } else { 2093d2baff62SLaszlo Ersek unsigned char status; 2094d2baff62SLaszlo Ersek 2095d2baff62SLaszlo Ersek res = pread(fd, &status, 1, 0); 2096d2baff62SLaszlo Ersek if (res == -1) { 2097d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); 2098d2baff62SLaszlo Ersek } else if (res == 0) { 2099d2baff62SLaszlo Ersek error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, 2100d2baff62SLaszlo Ersek fn); 2101d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2102d2baff62SLaszlo Ersek vcpu->online = (status != '0'); 2103d2baff62SLaszlo Ersek vcpu->can_offline = true; 2104d2baff62SLaszlo Ersek } else if (vcpu->online != (status != '0')) { 2105d2baff62SLaszlo Ersek status = '0' + vcpu->online; 2106d2baff62SLaszlo Ersek if (pwrite(fd, &status, 1, 0) == -1) { 2107d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, 2108d2baff62SLaszlo Ersek fn); 2109d2baff62SLaszlo Ersek } 2110d2baff62SLaszlo Ersek } /* otherwise pretend successful re-(on|off)-lining */ 2111d2baff62SLaszlo Ersek 2112d2baff62SLaszlo Ersek res = close(fd); 2113d2baff62SLaszlo Ersek g_assert(res == 0); 2114d2baff62SLaszlo Ersek } 2115d2baff62SLaszlo Ersek 2116d2baff62SLaszlo Ersek res = close(dirfd); 2117d2baff62SLaszlo Ersek g_assert(res == 0); 2118d2baff62SLaszlo Ersek } 2119d2baff62SLaszlo Ersek 2120d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2121d2baff62SLaszlo Ersek { 2122d2baff62SLaszlo Ersek int64_t current; 2123d2baff62SLaszlo Ersek GuestLogicalProcessorList *head, **link; 2124d2baff62SLaszlo Ersek long sc_max; 2125d2baff62SLaszlo Ersek Error *local_err = NULL; 2126d2baff62SLaszlo Ersek 2127d2baff62SLaszlo Ersek current = 0; 2128d2baff62SLaszlo Ersek head = NULL; 2129d2baff62SLaszlo Ersek link = &head; 2130d2baff62SLaszlo Ersek sc_max = SYSCONF_EXACT(_SC_NPROCESSORS_CONF, &local_err); 2131d2baff62SLaszlo Ersek 2132d2baff62SLaszlo Ersek while (local_err == NULL && current < sc_max) { 2133d2baff62SLaszlo Ersek GuestLogicalProcessor *vcpu; 2134d2baff62SLaszlo Ersek GuestLogicalProcessorList *entry; 2135b4bf912aSIgor Mammedov int64_t id = current++; 2136b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2137b4bf912aSIgor Mammedov id); 2138d2baff62SLaszlo Ersek 2139b4bf912aSIgor Mammedov if (g_file_test(path, G_FILE_TEST_EXISTS)) { 2140d2baff62SLaszlo Ersek vcpu = g_malloc0(sizeof *vcpu); 2141b4bf912aSIgor Mammedov vcpu->logical_id = id; 2142d2baff62SLaszlo Ersek vcpu->has_can_offline = true; /* lolspeak ftw */ 2143b4bf912aSIgor Mammedov transfer_vcpu(vcpu, true, path, &local_err); 2144d2baff62SLaszlo Ersek entry = g_malloc0(sizeof *entry); 2145d2baff62SLaszlo Ersek entry->value = vcpu; 2146d2baff62SLaszlo Ersek *link = entry; 2147d2baff62SLaszlo Ersek link = &entry->next; 2148d2baff62SLaszlo Ersek } 2149b4bf912aSIgor Mammedov g_free(path); 2150b4bf912aSIgor Mammedov } 2151d2baff62SLaszlo Ersek 2152d2baff62SLaszlo Ersek if (local_err == NULL) { 2153d2baff62SLaszlo Ersek /* there's no guest with zero VCPUs */ 2154d2baff62SLaszlo Ersek g_assert(head != NULL); 2155d2baff62SLaszlo Ersek return head; 2156d2baff62SLaszlo Ersek } 2157d2baff62SLaszlo Ersek 2158d2baff62SLaszlo Ersek qapi_free_GuestLogicalProcessorList(head); 2159d2baff62SLaszlo Ersek error_propagate(errp, local_err); 2160d2baff62SLaszlo Ersek return NULL; 2161d2baff62SLaszlo Ersek } 2162d2baff62SLaszlo Ersek 2163cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2164cbb65fc2SLaszlo Ersek { 2165cbb65fc2SLaszlo Ersek int64_t processed; 2166cbb65fc2SLaszlo Ersek Error *local_err = NULL; 2167cbb65fc2SLaszlo Ersek 2168cbb65fc2SLaszlo Ersek processed = 0; 2169cbb65fc2SLaszlo Ersek while (vcpus != NULL) { 2170b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2171b4bf912aSIgor Mammedov vcpus->value->logical_id); 2172b4bf912aSIgor Mammedov 2173b4bf912aSIgor Mammedov transfer_vcpu(vcpus->value, false, path, &local_err); 2174b4bf912aSIgor Mammedov g_free(path); 2175cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2176cbb65fc2SLaszlo Ersek break; 2177cbb65fc2SLaszlo Ersek } 2178cbb65fc2SLaszlo Ersek ++processed; 2179cbb65fc2SLaszlo Ersek vcpus = vcpus->next; 2180cbb65fc2SLaszlo Ersek } 2181cbb65fc2SLaszlo Ersek 2182cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2183cbb65fc2SLaszlo Ersek if (processed == 0) { 2184cbb65fc2SLaszlo Ersek error_propagate(errp, local_err); 2185cbb65fc2SLaszlo Ersek } else { 2186cbb65fc2SLaszlo Ersek error_free(local_err); 2187cbb65fc2SLaszlo Ersek } 2188cbb65fc2SLaszlo Ersek } 2189cbb65fc2SLaszlo Ersek 2190cbb65fc2SLaszlo Ersek return processed; 2191cbb65fc2SLaszlo Ersek } 2192cbb65fc2SLaszlo Ersek 2193215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2194215a2771SDaniel P. Berrange const char *password, 2195215a2771SDaniel P. Berrange bool crypted, 2196215a2771SDaniel P. Berrange Error **errp) 2197215a2771SDaniel P. Berrange { 2198215a2771SDaniel P. Berrange Error *local_err = NULL; 2199215a2771SDaniel P. Berrange char *passwd_path = NULL; 2200215a2771SDaniel P. Berrange pid_t pid; 2201215a2771SDaniel P. Berrange int status; 2202215a2771SDaniel P. Berrange int datafd[2] = { -1, -1 }; 2203215a2771SDaniel P. Berrange char *rawpasswddata = NULL; 2204215a2771SDaniel P. Berrange size_t rawpasswdlen; 2205215a2771SDaniel P. Berrange char *chpasswddata = NULL; 2206215a2771SDaniel P. Berrange size_t chpasswdlen; 2207215a2771SDaniel P. Berrange 2208920639caSDaniel P. Berrange rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 2209920639caSDaniel P. Berrange if (!rawpasswddata) { 2210920639caSDaniel P. Berrange return; 2211920639caSDaniel P. Berrange } 2212215a2771SDaniel P. Berrange rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 2213215a2771SDaniel P. Berrange rawpasswddata[rawpasswdlen] = '\0'; 2214215a2771SDaniel P. Berrange 2215215a2771SDaniel P. Berrange if (strchr(rawpasswddata, '\n')) { 2216215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in raw password"); 2217215a2771SDaniel P. Berrange goto out; 2218215a2771SDaniel P. Berrange } 2219215a2771SDaniel P. Berrange 2220215a2771SDaniel P. Berrange if (strchr(username, '\n') || 2221215a2771SDaniel P. Berrange strchr(username, ':')) { 2222215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in username"); 2223215a2771SDaniel P. Berrange goto out; 2224215a2771SDaniel P. Berrange } 2225215a2771SDaniel P. Berrange 2226215a2771SDaniel P. Berrange chpasswddata = g_strdup_printf("%s:%s\n", username, rawpasswddata); 2227215a2771SDaniel P. Berrange chpasswdlen = strlen(chpasswddata); 2228215a2771SDaniel P. Berrange 2229215a2771SDaniel P. Berrange passwd_path = g_find_program_in_path("chpasswd"); 2230215a2771SDaniel P. Berrange 2231215a2771SDaniel P. Berrange if (!passwd_path) { 2232215a2771SDaniel P. Berrange error_setg(errp, "cannot find 'passwd' program in PATH"); 2233215a2771SDaniel P. Berrange goto out; 2234215a2771SDaniel P. Berrange } 2235215a2771SDaniel P. Berrange 2236215a2771SDaniel P. Berrange if (pipe(datafd) < 0) { 2237215a2771SDaniel P. Berrange error_setg(errp, "cannot create pipe FDs"); 2238215a2771SDaniel P. Berrange goto out; 2239215a2771SDaniel P. Berrange } 2240215a2771SDaniel P. Berrange 2241215a2771SDaniel P. Berrange pid = fork(); 2242215a2771SDaniel P. Berrange if (pid == 0) { 2243215a2771SDaniel P. Berrange close(datafd[1]); 2244215a2771SDaniel P. Berrange /* child */ 2245215a2771SDaniel P. Berrange setsid(); 2246215a2771SDaniel P. Berrange dup2(datafd[0], 0); 2247215a2771SDaniel P. Berrange reopen_fd_to_null(1); 2248215a2771SDaniel P. Berrange reopen_fd_to_null(2); 2249215a2771SDaniel P. Berrange 2250215a2771SDaniel P. Berrange if (crypted) { 2251215a2771SDaniel P. Berrange execle(passwd_path, "chpasswd", "-e", NULL, environ); 2252215a2771SDaniel P. Berrange } else { 2253215a2771SDaniel P. Berrange execle(passwd_path, "chpasswd", NULL, environ); 2254215a2771SDaniel P. Berrange } 2255215a2771SDaniel P. Berrange _exit(EXIT_FAILURE); 2256215a2771SDaniel P. Berrange } else if (pid < 0) { 2257215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "failed to create child process"); 2258215a2771SDaniel P. Berrange goto out; 2259215a2771SDaniel P. Berrange } 2260215a2771SDaniel P. Berrange close(datafd[0]); 2261215a2771SDaniel P. Berrange datafd[0] = -1; 2262215a2771SDaniel P. Berrange 2263215a2771SDaniel P. Berrange if (qemu_write_full(datafd[1], chpasswddata, chpasswdlen) != chpasswdlen) { 2264215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "cannot write new account password"); 2265215a2771SDaniel P. Berrange goto out; 2266215a2771SDaniel P. Berrange } 2267215a2771SDaniel P. Berrange close(datafd[1]); 2268215a2771SDaniel P. Berrange datafd[1] = -1; 2269215a2771SDaniel P. Berrange 2270215a2771SDaniel P. Berrange ga_wait_child(pid, &status, &local_err); 2271215a2771SDaniel P. Berrange if (local_err) { 2272215a2771SDaniel P. Berrange error_propagate(errp, local_err); 2273215a2771SDaniel P. Berrange goto out; 2274215a2771SDaniel P. Berrange } 2275215a2771SDaniel P. Berrange 2276215a2771SDaniel P. Berrange if (!WIFEXITED(status)) { 2277215a2771SDaniel P. Berrange error_setg(errp, "child process has terminated abnormally"); 2278215a2771SDaniel P. Berrange goto out; 2279215a2771SDaniel P. Berrange } 2280215a2771SDaniel P. Berrange 2281215a2771SDaniel P. Berrange if (WEXITSTATUS(status)) { 2282215a2771SDaniel P. Berrange error_setg(errp, "child process has failed to set user password"); 2283215a2771SDaniel P. Berrange goto out; 2284215a2771SDaniel P. Berrange } 2285215a2771SDaniel P. Berrange 2286215a2771SDaniel P. Berrange out: 2287215a2771SDaniel P. Berrange g_free(chpasswddata); 2288215a2771SDaniel P. Berrange g_free(rawpasswddata); 2289215a2771SDaniel P. Berrange g_free(passwd_path); 2290215a2771SDaniel P. Berrange if (datafd[0] != -1) { 2291215a2771SDaniel P. Berrange close(datafd[0]); 2292215a2771SDaniel P. Berrange } 2293215a2771SDaniel P. Berrange if (datafd[1] != -1) { 2294215a2771SDaniel P. Berrange close(datafd[1]); 2295215a2771SDaniel P. Berrange } 2296215a2771SDaniel P. Berrange } 2297215a2771SDaniel P. Berrange 2298bd240fcaSzhanghailiang static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, 2299bd240fcaSzhanghailiang int size, Error **errp) 2300bd240fcaSzhanghailiang { 2301bd240fcaSzhanghailiang int fd; 2302bd240fcaSzhanghailiang int res; 2303bd240fcaSzhanghailiang 2304bd240fcaSzhanghailiang errno = 0; 2305bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_RDONLY); 2306bd240fcaSzhanghailiang if (fd == -1) { 2307bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2308bd240fcaSzhanghailiang return; 2309bd240fcaSzhanghailiang } 2310bd240fcaSzhanghailiang 2311bd240fcaSzhanghailiang res = pread(fd, buf, size, 0); 2312bd240fcaSzhanghailiang if (res == -1) { 2313bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); 2314bd240fcaSzhanghailiang } else if (res == 0) { 2315bd240fcaSzhanghailiang error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathname); 2316bd240fcaSzhanghailiang } 2317bd240fcaSzhanghailiang close(fd); 2318bd240fcaSzhanghailiang } 2319bd240fcaSzhanghailiang 2320bd240fcaSzhanghailiang static void ga_write_sysfs_file(int dirfd, const char *pathname, 2321bd240fcaSzhanghailiang const char *buf, int size, Error **errp) 2322bd240fcaSzhanghailiang { 2323bd240fcaSzhanghailiang int fd; 2324bd240fcaSzhanghailiang 2325bd240fcaSzhanghailiang errno = 0; 2326bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_WRONLY); 2327bd240fcaSzhanghailiang if (fd == -1) { 2328bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2329bd240fcaSzhanghailiang return; 2330bd240fcaSzhanghailiang } 2331bd240fcaSzhanghailiang 2332bd240fcaSzhanghailiang if (pwrite(fd, buf, size, 0) == -1) { 2333bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname); 2334bd240fcaSzhanghailiang } 2335bd240fcaSzhanghailiang 2336bd240fcaSzhanghailiang close(fd); 2337bd240fcaSzhanghailiang } 2338bd240fcaSzhanghailiang 2339bd240fcaSzhanghailiang /* Transfer online/offline status between @mem_blk and the guest system. 2340bd240fcaSzhanghailiang * 2341bd240fcaSzhanghailiang * On input either @errp or *@errp must be NULL. 2342bd240fcaSzhanghailiang * 2343bd240fcaSzhanghailiang * In system-to-@mem_blk direction, the following @mem_blk fields are accessed: 2344bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2345bd240fcaSzhanghailiang * - W: mem_blk->online 2346bd240fcaSzhanghailiang * - W: mem_blk->can_offline 2347bd240fcaSzhanghailiang * 2348bd240fcaSzhanghailiang * In @mem_blk-to-system direction, the following @mem_blk fields are accessed: 2349bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2350bd240fcaSzhanghailiang * - R: mem_blk->online 2351bd240fcaSzhanghailiang *- R: mem_blk->can_offline 2352bd240fcaSzhanghailiang * Written members remain unmodified on error. 2353bd240fcaSzhanghailiang */ 2354bd240fcaSzhanghailiang static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memblk, 2355bd240fcaSzhanghailiang GuestMemoryBlockResponse *result, 2356bd240fcaSzhanghailiang Error **errp) 2357bd240fcaSzhanghailiang { 2358bd240fcaSzhanghailiang char *dirpath; 2359bd240fcaSzhanghailiang int dirfd; 2360bd240fcaSzhanghailiang char *status; 2361bd240fcaSzhanghailiang Error *local_err = NULL; 2362bd240fcaSzhanghailiang 2363bd240fcaSzhanghailiang if (!sys2memblk) { 2364bd240fcaSzhanghailiang DIR *dp; 2365bd240fcaSzhanghailiang 2366bd240fcaSzhanghailiang if (!result) { 2367bd240fcaSzhanghailiang error_setg(errp, "Internal error, 'result' should not be NULL"); 2368bd240fcaSzhanghailiang return; 2369bd240fcaSzhanghailiang } 2370bd240fcaSzhanghailiang errno = 0; 2371bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2372bd240fcaSzhanghailiang /* if there is no 'memory' directory in sysfs, 2373bd240fcaSzhanghailiang * we think this VM does not support online/offline memory block, 2374bd240fcaSzhanghailiang * any other solution? 2375bd240fcaSzhanghailiang */ 23769879f5acSPhilippe Mathieu-Daudé if (!dp) { 23779879f5acSPhilippe Mathieu-Daudé if (errno == ENOENT) { 2378bd240fcaSzhanghailiang result->response = 2379bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 23809879f5acSPhilippe Mathieu-Daudé } 2381bd240fcaSzhanghailiang goto out1; 2382bd240fcaSzhanghailiang } 2383bd240fcaSzhanghailiang closedir(dp); 2384bd240fcaSzhanghailiang } 2385bd240fcaSzhanghailiang 2386bd240fcaSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/memory%" PRId64 "/", 2387bd240fcaSzhanghailiang mem_blk->phys_index); 2388bd240fcaSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2389bd240fcaSzhanghailiang if (dirfd == -1) { 2390bd240fcaSzhanghailiang if (sys2memblk) { 2391bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2392bd240fcaSzhanghailiang } else { 2393bd240fcaSzhanghailiang if (errno == ENOENT) { 2394bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_FOUND; 2395bd240fcaSzhanghailiang } else { 2396bd240fcaSzhanghailiang result->response = 2397bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2398bd240fcaSzhanghailiang } 2399bd240fcaSzhanghailiang } 2400bd240fcaSzhanghailiang g_free(dirpath); 2401bd240fcaSzhanghailiang goto out1; 2402bd240fcaSzhanghailiang } 2403bd240fcaSzhanghailiang g_free(dirpath); 2404bd240fcaSzhanghailiang 2405bd240fcaSzhanghailiang status = g_malloc0(10); 2406bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); 2407bd240fcaSzhanghailiang if (local_err) { 2408bd240fcaSzhanghailiang /* treat with sysfs file that not exist in old kernel */ 2409bd240fcaSzhanghailiang if (errno == ENOENT) { 2410bd240fcaSzhanghailiang error_free(local_err); 2411bd240fcaSzhanghailiang if (sys2memblk) { 2412bd240fcaSzhanghailiang mem_blk->online = true; 2413bd240fcaSzhanghailiang mem_blk->can_offline = false; 2414bd240fcaSzhanghailiang } else if (!mem_blk->online) { 2415bd240fcaSzhanghailiang result->response = 2416bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 2417bd240fcaSzhanghailiang } 2418bd240fcaSzhanghailiang } else { 2419bd240fcaSzhanghailiang if (sys2memblk) { 2420bd240fcaSzhanghailiang error_propagate(errp, local_err); 2421bd240fcaSzhanghailiang } else { 2422bd240fcaSzhanghailiang result->response = 2423bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2424bd240fcaSzhanghailiang } 2425bd240fcaSzhanghailiang } 2426bd240fcaSzhanghailiang goto out2; 2427bd240fcaSzhanghailiang } 2428bd240fcaSzhanghailiang 2429bd240fcaSzhanghailiang if (sys2memblk) { 2430bd240fcaSzhanghailiang char removable = '0'; 2431bd240fcaSzhanghailiang 2432bd240fcaSzhanghailiang mem_blk->online = (strncmp(status, "online", 6) == 0); 2433bd240fcaSzhanghailiang 2434bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); 2435bd240fcaSzhanghailiang if (local_err) { 243667cc32ebSVeres Lajos /* if no 'removable' file, it doesn't support offline mem blk */ 2437bd240fcaSzhanghailiang if (errno == ENOENT) { 2438bd240fcaSzhanghailiang error_free(local_err); 2439bd240fcaSzhanghailiang mem_blk->can_offline = false; 2440bd240fcaSzhanghailiang } else { 2441bd240fcaSzhanghailiang error_propagate(errp, local_err); 2442bd240fcaSzhanghailiang } 2443bd240fcaSzhanghailiang } else { 2444bd240fcaSzhanghailiang mem_blk->can_offline = (removable != '0'); 2445bd240fcaSzhanghailiang } 2446bd240fcaSzhanghailiang } else { 2447bd240fcaSzhanghailiang if (mem_blk->online != (strncmp(status, "online", 6) == 0)) { 24487064024dSMarc-André Lureau const char *new_state = mem_blk->online ? "online" : "offline"; 2449bd240fcaSzhanghailiang 2450bd240fcaSzhanghailiang ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_state), 2451bd240fcaSzhanghailiang &local_err); 2452bd240fcaSzhanghailiang if (local_err) { 2453bd240fcaSzhanghailiang error_free(local_err); 2454bd240fcaSzhanghailiang result->response = 2455bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2456bd240fcaSzhanghailiang goto out2; 2457bd240fcaSzhanghailiang } 2458bd240fcaSzhanghailiang 2459bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; 2460bd240fcaSzhanghailiang result->has_error_code = false; 2461bd240fcaSzhanghailiang } /* otherwise pretend successful re-(on|off)-lining */ 2462bd240fcaSzhanghailiang } 2463bd240fcaSzhanghailiang g_free(status); 2464bd240fcaSzhanghailiang close(dirfd); 2465bd240fcaSzhanghailiang return; 2466bd240fcaSzhanghailiang 2467bd240fcaSzhanghailiang out2: 2468bd240fcaSzhanghailiang g_free(status); 2469bd240fcaSzhanghailiang close(dirfd); 2470bd240fcaSzhanghailiang out1: 2471bd240fcaSzhanghailiang if (!sys2memblk) { 2472bd240fcaSzhanghailiang result->has_error_code = true; 2473bd240fcaSzhanghailiang result->error_code = errno; 2474bd240fcaSzhanghailiang } 2475bd240fcaSzhanghailiang } 2476bd240fcaSzhanghailiang 2477a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2478a065aaa9Szhanghailiang { 2479bd240fcaSzhanghailiang GuestMemoryBlockList *head, **link; 2480bd240fcaSzhanghailiang Error *local_err = NULL; 2481bd240fcaSzhanghailiang struct dirent *de; 2482bd240fcaSzhanghailiang DIR *dp; 2483bd240fcaSzhanghailiang 2484bd240fcaSzhanghailiang head = NULL; 2485bd240fcaSzhanghailiang link = &head; 2486bd240fcaSzhanghailiang 2487bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2488bd240fcaSzhanghailiang if (!dp) { 2489f693fe6eSMichael Roth /* it's ok if this happens to be a system that doesn't expose 2490f693fe6eSMichael Roth * memory blocks via sysfs, but otherwise we should report 2491f693fe6eSMichael Roth * an error 2492f693fe6eSMichael Roth */ 2493f693fe6eSMichael Roth if (errno != ENOENT) { 2494bd240fcaSzhanghailiang error_setg_errno(errp, errno, "Can't open directory" 24959af9e0feSMarkus Armbruster "\"/sys/devices/system/memory/\""); 2496f693fe6eSMichael Roth } 2497bd240fcaSzhanghailiang return NULL; 2498bd240fcaSzhanghailiang } 2499bd240fcaSzhanghailiang 2500bd240fcaSzhanghailiang /* Note: the phys_index of memory block may be discontinuous, 2501bd240fcaSzhanghailiang * this is because a memblk is the unit of the Sparse Memory design, which 2502bd240fcaSzhanghailiang * allows discontinuous memory ranges (ex. NUMA), so here we should 2503bd240fcaSzhanghailiang * traverse the memory block directory. 2504bd240fcaSzhanghailiang */ 2505bd240fcaSzhanghailiang while ((de = readdir(dp)) != NULL) { 2506bd240fcaSzhanghailiang GuestMemoryBlock *mem_blk; 2507bd240fcaSzhanghailiang GuestMemoryBlockList *entry; 2508bd240fcaSzhanghailiang 2509bd240fcaSzhanghailiang if ((strncmp(de->d_name, "memory", 6) != 0) || 2510bd240fcaSzhanghailiang !(de->d_type & DT_DIR)) { 2511bd240fcaSzhanghailiang continue; 2512bd240fcaSzhanghailiang } 2513bd240fcaSzhanghailiang 2514bd240fcaSzhanghailiang mem_blk = g_malloc0(sizeof *mem_blk); 2515bd240fcaSzhanghailiang /* The d_name is "memoryXXX", phys_index is block id, same as XXX */ 2516bd240fcaSzhanghailiang mem_blk->phys_index = strtoul(&de->d_name[6], NULL, 10); 2517bd240fcaSzhanghailiang mem_blk->has_can_offline = true; /* lolspeak ftw */ 2518bd240fcaSzhanghailiang transfer_memory_block(mem_blk, true, NULL, &local_err); 2519bd240fcaSzhanghailiang 2520bd240fcaSzhanghailiang entry = g_malloc0(sizeof *entry); 2521bd240fcaSzhanghailiang entry->value = mem_blk; 2522bd240fcaSzhanghailiang 2523bd240fcaSzhanghailiang *link = entry; 2524bd240fcaSzhanghailiang link = &entry->next; 2525bd240fcaSzhanghailiang } 2526bd240fcaSzhanghailiang 2527bd240fcaSzhanghailiang closedir(dp); 2528bd240fcaSzhanghailiang if (local_err == NULL) { 2529bd240fcaSzhanghailiang /* there's no guest with zero memory blocks */ 2530bd240fcaSzhanghailiang if (head == NULL) { 2531bd240fcaSzhanghailiang error_setg(errp, "guest reported zero memory blocks!"); 2532bd240fcaSzhanghailiang } 2533bd240fcaSzhanghailiang return head; 2534bd240fcaSzhanghailiang } 2535bd240fcaSzhanghailiang 2536bd240fcaSzhanghailiang qapi_free_GuestMemoryBlockList(head); 2537bd240fcaSzhanghailiang error_propagate(errp, local_err); 2538a065aaa9Szhanghailiang return NULL; 2539a065aaa9Szhanghailiang } 2540a065aaa9Szhanghailiang 2541a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2542a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2543a065aaa9Szhanghailiang { 254432ca7927Szhanghailiang GuestMemoryBlockResponseList *head, **link; 254532ca7927Szhanghailiang Error *local_err = NULL; 254632ca7927Szhanghailiang 254732ca7927Szhanghailiang head = NULL; 254832ca7927Szhanghailiang link = &head; 254932ca7927Szhanghailiang 255032ca7927Szhanghailiang while (mem_blks != NULL) { 255132ca7927Szhanghailiang GuestMemoryBlockResponse *result; 255232ca7927Szhanghailiang GuestMemoryBlockResponseList *entry; 255332ca7927Szhanghailiang GuestMemoryBlock *current_mem_blk = mem_blks->value; 255432ca7927Szhanghailiang 255532ca7927Szhanghailiang result = g_malloc0(sizeof(*result)); 255632ca7927Szhanghailiang result->phys_index = current_mem_blk->phys_index; 255732ca7927Szhanghailiang transfer_memory_block(current_mem_blk, false, result, &local_err); 255832ca7927Szhanghailiang if (local_err) { /* should never happen */ 255932ca7927Szhanghailiang goto err; 256032ca7927Szhanghailiang } 256132ca7927Szhanghailiang entry = g_malloc0(sizeof *entry); 256232ca7927Szhanghailiang entry->value = result; 256332ca7927Szhanghailiang 256432ca7927Szhanghailiang *link = entry; 256532ca7927Szhanghailiang link = &entry->next; 256632ca7927Szhanghailiang mem_blks = mem_blks->next; 256732ca7927Szhanghailiang } 256832ca7927Szhanghailiang 256932ca7927Szhanghailiang return head; 257032ca7927Szhanghailiang err: 257132ca7927Szhanghailiang qapi_free_GuestMemoryBlockResponseList(head); 257232ca7927Szhanghailiang error_propagate(errp, local_err); 2573a065aaa9Szhanghailiang return NULL; 2574a065aaa9Szhanghailiang } 2575a065aaa9Szhanghailiang 2576a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2577a065aaa9Szhanghailiang { 2578ef82b60bSzhanghailiang Error *local_err = NULL; 2579ef82b60bSzhanghailiang char *dirpath; 2580ef82b60bSzhanghailiang int dirfd; 2581ef82b60bSzhanghailiang char *buf; 2582ef82b60bSzhanghailiang GuestMemoryBlockInfo *info; 2583ef82b60bSzhanghailiang 2584ef82b60bSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/"); 2585ef82b60bSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2586ef82b60bSzhanghailiang if (dirfd == -1) { 2587ef82b60bSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2588ef82b60bSzhanghailiang g_free(dirpath); 2589a065aaa9Szhanghailiang return NULL; 2590a065aaa9Szhanghailiang } 2591ef82b60bSzhanghailiang g_free(dirpath); 2592ef82b60bSzhanghailiang 2593ef82b60bSzhanghailiang buf = g_malloc0(20); 2594ef82b60bSzhanghailiang ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); 25958ce1ee46SShannon Zhao close(dirfd); 2596ef82b60bSzhanghailiang if (local_err) { 2597ef82b60bSzhanghailiang g_free(buf); 2598ef82b60bSzhanghailiang error_propagate(errp, local_err); 2599ef82b60bSzhanghailiang return NULL; 2600ef82b60bSzhanghailiang } 2601ef82b60bSzhanghailiang 2602ef82b60bSzhanghailiang info = g_new0(GuestMemoryBlockInfo, 1); 2603ef82b60bSzhanghailiang info->size = strtol(buf, NULL, 16); /* the unit is bytes */ 2604ef82b60bSzhanghailiang 2605ef82b60bSzhanghailiang g_free(buf); 2606ef82b60bSzhanghailiang 2607ef82b60bSzhanghailiang return info; 2608ef82b60bSzhanghailiang } 2609a065aaa9Szhanghailiang 2610e72c3f2eSMichael Roth #else /* defined(__linux__) */ 2611e72c3f2eSMichael Roth 261277dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 2613e72c3f2eSMichael Roth { 2614c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2615e72c3f2eSMichael Roth } 2616e72c3f2eSMichael Roth 261777dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 2618e72c3f2eSMichael Roth { 2619c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2620e72c3f2eSMichael Roth } 2621e72c3f2eSMichael Roth 262277dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 2623e72c3f2eSMichael Roth { 2624c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2625e72c3f2eSMichael Roth } 2626e72c3f2eSMichael Roth 2627e72c3f2eSMichael Roth GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 2628e72c3f2eSMichael Roth { 2629c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2630e72c3f2eSMichael Roth return NULL; 2631e72c3f2eSMichael Roth } 2632e72c3f2eSMichael Roth 2633d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2634d2baff62SLaszlo Ersek { 2635c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2636d2baff62SLaszlo Ersek return NULL; 2637d2baff62SLaszlo Ersek } 2638d2baff62SLaszlo Ersek 2639cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2640cbb65fc2SLaszlo Ersek { 2641c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2642cbb65fc2SLaszlo Ersek return -1; 2643cbb65fc2SLaszlo Ersek } 2644cbb65fc2SLaszlo Ersek 2645215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2646215a2771SDaniel P. Berrange const char *password, 2647215a2771SDaniel P. Berrange bool crypted, 2648215a2771SDaniel P. Berrange Error **errp) 2649215a2771SDaniel P. Berrange { 2650c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2651215a2771SDaniel P. Berrange } 2652215a2771SDaniel P. Berrange 2653a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2654a065aaa9Szhanghailiang { 2655c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2656a065aaa9Szhanghailiang return NULL; 2657a065aaa9Szhanghailiang } 2658a065aaa9Szhanghailiang 2659a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2660a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2661a065aaa9Szhanghailiang { 2662c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2663a065aaa9Szhanghailiang return NULL; 2664a065aaa9Szhanghailiang } 2665a065aaa9Szhanghailiang 2666a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2667a065aaa9Szhanghailiang { 2668c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2669a065aaa9Szhanghailiang return NULL; 2670a065aaa9Szhanghailiang } 2671a065aaa9Szhanghailiang 2672e72c3f2eSMichael Roth #endif 2673e72c3f2eSMichael Roth 2674d35d4cb5SMichael Roth #if !defined(CONFIG_FSFREEZE) 2675d35d4cb5SMichael Roth 267646d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 267746d4c572STomoki Sekiyama { 2678c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 267946d4c572STomoki Sekiyama return NULL; 268046d4c572STomoki Sekiyama } 268146d4c572STomoki Sekiyama 268277dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 2683d35d4cb5SMichael Roth { 2684c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2685d35d4cb5SMichael Roth 2686d35d4cb5SMichael Roth return 0; 2687d35d4cb5SMichael Roth } 2688d35d4cb5SMichael Roth 268977dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_freeze(Error **errp) 2690d35d4cb5SMichael Roth { 2691c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2692d35d4cb5SMichael Roth 2693d35d4cb5SMichael Roth return 0; 2694d35d4cb5SMichael Roth } 2695d35d4cb5SMichael Roth 2696e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 2697e99bce20STomoki Sekiyama strList *mountpoints, 2698e99bce20STomoki Sekiyama Error **errp) 2699e99bce20STomoki Sekiyama { 2700c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2701e99bce20STomoki Sekiyama 2702e99bce20STomoki Sekiyama return 0; 2703e99bce20STomoki Sekiyama } 2704e99bce20STomoki Sekiyama 270577dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 2706d35d4cb5SMichael Roth { 2707c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2708d35d4cb5SMichael Roth 2709d35d4cb5SMichael Roth return 0; 2710d35d4cb5SMichael Roth } 2711eab5fd59SPaolo Bonzini #endif /* CONFIG_FSFREEZE */ 2712d35d4cb5SMichael Roth 2713eab5fd59SPaolo Bonzini #if !defined(CONFIG_FSTRIM) 2714e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 2715e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 2716eab5fd59SPaolo Bonzini { 2717c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2718e82855d9SJustin Ossevoort return NULL; 2719eab5fd59SPaolo Bonzini } 2720d35d4cb5SMichael Roth #endif 2721d35d4cb5SMichael Roth 27221281c08aSTomoki Sekiyama /* add unsupported commands to the blacklist */ 27231281c08aSTomoki Sekiyama GList *ga_command_blacklist_init(GList *blacklist) 27241281c08aSTomoki Sekiyama { 27251281c08aSTomoki Sekiyama #if !defined(__linux__) 27261281c08aSTomoki Sekiyama { 27271281c08aSTomoki Sekiyama const char *list[] = { 27281281c08aSTomoki Sekiyama "guest-suspend-disk", "guest-suspend-ram", 27291281c08aSTomoki Sekiyama "guest-suspend-hybrid", "guest-network-get-interfaces", 27300dd38a03Szhanghailiang "guest-get-vcpus", "guest-set-vcpus", 27310dd38a03Szhanghailiang "guest-get-memory-blocks", "guest-set-memory-blocks", 27320dd38a03Szhanghailiang "guest-get-memory-block-size", NULL}; 27331281c08aSTomoki Sekiyama char **p = (char **)list; 27341281c08aSTomoki Sekiyama 27351281c08aSTomoki Sekiyama while (*p) { 27364bca81ceSMarc-André Lureau blacklist = g_list_append(blacklist, g_strdup(*p++)); 27371281c08aSTomoki Sekiyama } 27381281c08aSTomoki Sekiyama } 27391281c08aSTomoki Sekiyama #endif 27401281c08aSTomoki Sekiyama 27411281c08aSTomoki Sekiyama #if !defined(CONFIG_FSFREEZE) 27421281c08aSTomoki Sekiyama { 27431281c08aSTomoki Sekiyama const char *list[] = { 27441281c08aSTomoki Sekiyama "guest-get-fsinfo", "guest-fsfreeze-status", 27451281c08aSTomoki Sekiyama "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", 27461281c08aSTomoki Sekiyama "guest-fsfreeze-thaw", "guest-get-fsinfo", NULL}; 27471281c08aSTomoki Sekiyama char **p = (char **)list; 27481281c08aSTomoki Sekiyama 27491281c08aSTomoki Sekiyama while (*p) { 27504bca81ceSMarc-André Lureau blacklist = g_list_append(blacklist, g_strdup(*p++)); 27511281c08aSTomoki Sekiyama } 27521281c08aSTomoki Sekiyama } 27531281c08aSTomoki Sekiyama #endif 27541281c08aSTomoki Sekiyama 27551281c08aSTomoki Sekiyama #if !defined(CONFIG_FSTRIM) 27564bca81ceSMarc-André Lureau blacklist = g_list_append(blacklist, g_strdup("guest-fstrim")); 27571281c08aSTomoki Sekiyama #endif 27581281c08aSTomoki Sekiyama 27591281c08aSTomoki Sekiyama return blacklist; 27601281c08aSTomoki Sekiyama } 27611281c08aSTomoki Sekiyama 2762c216e5adSMichael Roth /* register init/cleanup routines for stateful command groups */ 2763c216e5adSMichael Roth void ga_command_state_init(GAState *s, GACommandState *cs) 2764c216e5adSMichael Roth { 2765c216e5adSMichael Roth #if defined(CONFIG_FSFREEZE) 2766f22d85e9SMichael Roth ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2767c216e5adSMichael Roth #endif 2768c216e5adSMichael Roth } 2769161a56a9SVinzenz Feenstra 2770e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 2771e674605fSTomáš Golembiovský 2772161a56a9SVinzenz Feenstra #define QGA_MICRO_SECOND_TO_SECOND 1000000 2773161a56a9SVinzenz Feenstra 2774161a56a9SVinzenz Feenstra static double ga_get_login_time(struct utmpx *user_info) 2775161a56a9SVinzenz Feenstra { 2776161a56a9SVinzenz Feenstra double seconds = (double)user_info->ut_tv.tv_sec; 2777161a56a9SVinzenz Feenstra double useconds = (double)user_info->ut_tv.tv_usec; 2778161a56a9SVinzenz Feenstra useconds /= QGA_MICRO_SECOND_TO_SECOND; 2779161a56a9SVinzenz Feenstra return seconds + useconds; 2780161a56a9SVinzenz Feenstra } 2781161a56a9SVinzenz Feenstra 2782161a56a9SVinzenz Feenstra GuestUserList *qmp_guest_get_users(Error **err) 2783161a56a9SVinzenz Feenstra { 2784161a56a9SVinzenz Feenstra GHashTable *cache = NULL; 2785161a56a9SVinzenz Feenstra GuestUserList *head = NULL, *cur_item = NULL; 2786161a56a9SVinzenz Feenstra struct utmpx *user_info = NULL; 2787161a56a9SVinzenz Feenstra gpointer value = NULL; 2788161a56a9SVinzenz Feenstra GuestUser *user = NULL; 2789161a56a9SVinzenz Feenstra GuestUserList *item = NULL; 2790161a56a9SVinzenz Feenstra double login_time = 0; 2791161a56a9SVinzenz Feenstra 2792161a56a9SVinzenz Feenstra cache = g_hash_table_new(g_str_hash, g_str_equal); 2793161a56a9SVinzenz Feenstra setutxent(); 2794161a56a9SVinzenz Feenstra 2795161a56a9SVinzenz Feenstra for (;;) { 2796161a56a9SVinzenz Feenstra user_info = getutxent(); 2797161a56a9SVinzenz Feenstra if (user_info == NULL) { 2798161a56a9SVinzenz Feenstra break; 2799161a56a9SVinzenz Feenstra } else if (user_info->ut_type != USER_PROCESS) { 2800161a56a9SVinzenz Feenstra continue; 2801161a56a9SVinzenz Feenstra } else if (g_hash_table_contains(cache, user_info->ut_user)) { 2802161a56a9SVinzenz Feenstra value = g_hash_table_lookup(cache, user_info->ut_user); 2803161a56a9SVinzenz Feenstra user = (GuestUser *)value; 2804161a56a9SVinzenz Feenstra login_time = ga_get_login_time(user_info); 2805161a56a9SVinzenz Feenstra /* We're ensuring the earliest login time to be sent */ 2806161a56a9SVinzenz Feenstra if (login_time < user->login_time) { 2807161a56a9SVinzenz Feenstra user->login_time = login_time; 2808161a56a9SVinzenz Feenstra } 2809161a56a9SVinzenz Feenstra continue; 2810161a56a9SVinzenz Feenstra } 2811161a56a9SVinzenz Feenstra 2812161a56a9SVinzenz Feenstra item = g_new0(GuestUserList, 1); 2813161a56a9SVinzenz Feenstra item->value = g_new0(GuestUser, 1); 2814161a56a9SVinzenz Feenstra item->value->user = g_strdup(user_info->ut_user); 2815161a56a9SVinzenz Feenstra item->value->login_time = ga_get_login_time(user_info); 2816161a56a9SVinzenz Feenstra 2817161a56a9SVinzenz Feenstra g_hash_table_insert(cache, item->value->user, item->value); 2818161a56a9SVinzenz Feenstra 2819161a56a9SVinzenz Feenstra if (!cur_item) { 2820161a56a9SVinzenz Feenstra head = cur_item = item; 2821161a56a9SVinzenz Feenstra } else { 2822161a56a9SVinzenz Feenstra cur_item->next = item; 2823161a56a9SVinzenz Feenstra cur_item = item; 2824161a56a9SVinzenz Feenstra } 2825161a56a9SVinzenz Feenstra } 2826161a56a9SVinzenz Feenstra endutxent(); 2827161a56a9SVinzenz Feenstra g_hash_table_destroy(cache); 2828161a56a9SVinzenz Feenstra return head; 2829161a56a9SVinzenz Feenstra } 2830e674605fSTomáš Golembiovský 2831e674605fSTomáš Golembiovský #else 2832e674605fSTomáš Golembiovský 2833e674605fSTomáš Golembiovský GuestUserList *qmp_guest_get_users(Error **errp) 2834e674605fSTomáš Golembiovský { 2835e674605fSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 2836e674605fSTomáš Golembiovský return NULL; 2837e674605fSTomáš Golembiovský } 2838e674605fSTomáš Golembiovský 2839e674605fSTomáš Golembiovský #endif 28409848f797STomáš Golembiovský 28419848f797STomáš Golembiovský /* Replace escaped special characters with theire real values. The replacement 28429848f797STomáš Golembiovský * is done in place -- returned value is in the original string. 28439848f797STomáš Golembiovský */ 28449848f797STomáš Golembiovský static void ga_osrelease_replace_special(gchar *value) 28459848f797STomáš Golembiovský { 28469848f797STomáš Golembiovský gchar *p, *p2, quote; 28479848f797STomáš Golembiovský 28489848f797STomáš Golembiovský /* Trim the string at first space or semicolon if it is not enclosed in 28499848f797STomáš Golembiovský * single or double quotes. */ 28509848f797STomáš Golembiovský if ((value[0] != '"') || (value[0] == '\'')) { 28519848f797STomáš Golembiovský p = strchr(value, ' '); 28529848f797STomáš Golembiovský if (p != NULL) { 28539848f797STomáš Golembiovský *p = 0; 28549848f797STomáš Golembiovský } 28559848f797STomáš Golembiovský p = strchr(value, ';'); 28569848f797STomáš Golembiovský if (p != NULL) { 28579848f797STomáš Golembiovský *p = 0; 28589848f797STomáš Golembiovský } 28599848f797STomáš Golembiovský return; 28609848f797STomáš Golembiovský } 28619848f797STomáš Golembiovský 28629848f797STomáš Golembiovský quote = value[0]; 28639848f797STomáš Golembiovský p2 = value; 28649848f797STomáš Golembiovský p = value + 1; 28659848f797STomáš Golembiovský while (*p != 0) { 28669848f797STomáš Golembiovský if (*p == '\\') { 28679848f797STomáš Golembiovský p++; 28689848f797STomáš Golembiovský switch (*p) { 28699848f797STomáš Golembiovský case '$': 28709848f797STomáš Golembiovský case '\'': 28719848f797STomáš Golembiovský case '"': 28729848f797STomáš Golembiovský case '\\': 28739848f797STomáš Golembiovský case '`': 28749848f797STomáš Golembiovský break; 28759848f797STomáš Golembiovský default: 28769848f797STomáš Golembiovský /* Keep literal backslash followed by whatever is there */ 28779848f797STomáš Golembiovský p--; 28789848f797STomáš Golembiovský break; 28799848f797STomáš Golembiovský } 28809848f797STomáš Golembiovský } else if (*p == quote) { 28819848f797STomáš Golembiovský *p2 = 0; 28829848f797STomáš Golembiovský break; 28839848f797STomáš Golembiovský } 28849848f797STomáš Golembiovský *(p2++) = *(p++); 28859848f797STomáš Golembiovský } 28869848f797STomáš Golembiovský } 28879848f797STomáš Golembiovský 28889848f797STomáš Golembiovský static GKeyFile *ga_parse_osrelease(const char *fname) 28899848f797STomáš Golembiovský { 28909848f797STomáš Golembiovský gchar *content = NULL; 28919848f797STomáš Golembiovský gchar *content2 = NULL; 28929848f797STomáš Golembiovský GError *err = NULL; 28939848f797STomáš Golembiovský GKeyFile *keys = g_key_file_new(); 28949848f797STomáš Golembiovský const char *group = "[os-release]\n"; 28959848f797STomáš Golembiovský 28969848f797STomáš Golembiovský if (!g_file_get_contents(fname, &content, NULL, &err)) { 28979848f797STomáš Golembiovský slog("failed to read '%s', error: %s", fname, err->message); 28989848f797STomáš Golembiovský goto fail; 28999848f797STomáš Golembiovský } 29009848f797STomáš Golembiovský 29019848f797STomáš Golembiovský if (!g_utf8_validate(content, -1, NULL)) { 29029848f797STomáš Golembiovský slog("file is not utf-8 encoded: %s", fname); 29039848f797STomáš Golembiovský goto fail; 29049848f797STomáš Golembiovský } 29059848f797STomáš Golembiovský content2 = g_strdup_printf("%s%s", group, content); 29069848f797STomáš Golembiovský 29079848f797STomáš Golembiovský if (!g_key_file_load_from_data(keys, content2, -1, G_KEY_FILE_NONE, 29089848f797STomáš Golembiovský &err)) { 29099848f797STomáš Golembiovský slog("failed to parse file '%s', error: %s", fname, err->message); 29109848f797STomáš Golembiovský goto fail; 29119848f797STomáš Golembiovský } 29129848f797STomáš Golembiovský 29139848f797STomáš Golembiovský g_free(content); 29149848f797STomáš Golembiovský g_free(content2); 29159848f797STomáš Golembiovský return keys; 29169848f797STomáš Golembiovský 29179848f797STomáš Golembiovský fail: 29189848f797STomáš Golembiovský g_error_free(err); 29199848f797STomáš Golembiovský g_free(content); 29209848f797STomáš Golembiovský g_free(content2); 29219848f797STomáš Golembiovský g_key_file_free(keys); 29229848f797STomáš Golembiovský return NULL; 29239848f797STomáš Golembiovský } 29249848f797STomáš Golembiovský 29259848f797STomáš Golembiovský GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 29269848f797STomáš Golembiovský { 29279848f797STomáš Golembiovský GuestOSInfo *info = NULL; 29289848f797STomáš Golembiovský struct utsname kinfo; 2929339ca68bSTomáš Golembiovský GKeyFile *osrelease = NULL; 2930339ca68bSTomáš Golembiovský const char *qga_os_release = g_getenv("QGA_OS_RELEASE"); 29319848f797STomáš Golembiovský 29329848f797STomáš Golembiovský info = g_new0(GuestOSInfo, 1); 29339848f797STomáš Golembiovský 29349848f797STomáš Golembiovský if (uname(&kinfo) != 0) { 29359848f797STomáš Golembiovský error_setg_errno(errp, errno, "uname failed"); 29369848f797STomáš Golembiovský } else { 29379848f797STomáš Golembiovský info->has_kernel_version = true; 29389848f797STomáš Golembiovský info->kernel_version = g_strdup(kinfo.version); 29399848f797STomáš Golembiovský info->has_kernel_release = true; 29409848f797STomáš Golembiovský info->kernel_release = g_strdup(kinfo.release); 29419848f797STomáš Golembiovský info->has_machine = true; 29429848f797STomáš Golembiovský info->machine = g_strdup(kinfo.machine); 29439848f797STomáš Golembiovský } 29449848f797STomáš Golembiovský 2945339ca68bSTomáš Golembiovský if (qga_os_release != NULL) { 2946339ca68bSTomáš Golembiovský osrelease = ga_parse_osrelease(qga_os_release); 2947339ca68bSTomáš Golembiovský } else { 29489848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/etc/os-release"); 29499848f797STomáš Golembiovský if (osrelease == NULL) { 29509848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/usr/lib/os-release"); 29519848f797STomáš Golembiovský } 2952339ca68bSTomáš Golembiovský } 29539848f797STomáš Golembiovský 29549848f797STomáš Golembiovský if (osrelease != NULL) { 29559848f797STomáš Golembiovský char *value; 29569848f797STomáš Golembiovský 29579848f797STomáš Golembiovský #define GET_FIELD(field, osfield) do { \ 29589848f797STomáš Golembiovský value = g_key_file_get_value(osrelease, "os-release", osfield, NULL); \ 29599848f797STomáš Golembiovský if (value != NULL) { \ 29609848f797STomáš Golembiovský ga_osrelease_replace_special(value); \ 29619848f797STomáš Golembiovský info->has_ ## field = true; \ 29629848f797STomáš Golembiovský info->field = value; \ 29639848f797STomáš Golembiovský } \ 29649848f797STomáš Golembiovský } while (0) 29659848f797STomáš Golembiovský GET_FIELD(id, "ID"); 29669848f797STomáš Golembiovský GET_FIELD(name, "NAME"); 29679848f797STomáš Golembiovský GET_FIELD(pretty_name, "PRETTY_NAME"); 29689848f797STomáš Golembiovský GET_FIELD(version, "VERSION"); 29699848f797STomáš Golembiovský GET_FIELD(version_id, "VERSION_ID"); 29709848f797STomáš Golembiovský GET_FIELD(variant, "VARIANT"); 29719848f797STomáš Golembiovský GET_FIELD(variant_id, "VARIANT_ID"); 29729848f797STomáš Golembiovský #undef GET_FIELD 29739848f797STomáš Golembiovský 29749848f797STomáš Golembiovský g_key_file_free(osrelease); 29759848f797STomáš Golembiovský } 29769848f797STomáš Golembiovský 29779848f797STomáš Golembiovský return info; 29789848f797STomáš Golembiovský } 2979