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> 19a8d25326SMarkus Armbruster #include "qemu-common.h" 20dc03272dSMichael S. Tsirkin #include "guest-agent-core.h" 21eb815e24SMarkus Armbruster #include "qga-qapi-commands.h" 22e688df6bSMarkus Armbruster #include "qapi/error.h" 237b1b5d19SPaolo Bonzini #include "qapi/qmp/qerror.h" 241de7afc9SPaolo Bonzini #include "qemu/queue.h" 251de7afc9SPaolo Bonzini #include "qemu/host-utils.h" 2612505396SDenis V. Lunev #include "qemu/sockets.h" 27920639caSDaniel P. Berrange #include "qemu/base64.h" 28f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 29c216e5adSMichael Roth 30e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 31e674605fSTomáš Golembiovský #include <utmpx.h> 32e674605fSTomáš Golembiovský #endif 33e674605fSTomáš Golembiovský 342c02cbf6SLuiz Capitulino #ifndef CONFIG_HAS_ENVIRON 35eecae147SAndreas Färber #ifdef __APPLE__ 36eecae147SAndreas Färber #include <crt_externs.h> 37eecae147SAndreas Färber #define environ (*_NSGetEnviron()) 38eecae147SAndreas Färber #else 392c02cbf6SLuiz Capitulino extern char **environ; 402c02cbf6SLuiz Capitulino #endif 41eecae147SAndreas Färber #endif 422c02cbf6SLuiz Capitulino 43e72c3f2eSMichael Roth #if defined(__linux__) 44e72c3f2eSMichael Roth #include <mntent.h> 45e72c3f2eSMichael Roth #include <linux/fs.h> 46e72c3f2eSMichael Roth #include <ifaddrs.h> 47e72c3f2eSMichael Roth #include <arpa/inet.h> 48e72c3f2eSMichael Roth #include <sys/socket.h> 49e72c3f2eSMichael Roth #include <net/if.h> 5025b5ff1aSChen Hanxiao #include <sys/statvfs.h> 51e72c3f2eSMichael Roth 52b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 53b616105aSTomáš Golembiovský #include <libudev.h> 54b616105aSTomáš Golembiovský #endif 55b616105aSTomáš Golembiovský 56eab5fd59SPaolo Bonzini #ifdef FIFREEZE 57e72c3f2eSMichael Roth #define CONFIG_FSFREEZE 58e72c3f2eSMichael Roth #endif 59eab5fd59SPaolo Bonzini #ifdef FITRIM 60eab5fd59SPaolo Bonzini #define CONFIG_FSTRIM 61eab5fd59SPaolo Bonzini #endif 62e72c3f2eSMichael Roth #endif 63e72c3f2eSMichael Roth 6477dbc81bSMarkus Armbruster static void ga_wait_child(pid_t pid, int *status, Error **errp) 65d220a6dfSLuiz Capitulino { 66d220a6dfSLuiz Capitulino pid_t rpid; 67d220a6dfSLuiz Capitulino 68d220a6dfSLuiz Capitulino *status = 0; 69d220a6dfSLuiz Capitulino 70d220a6dfSLuiz Capitulino do { 71d220a6dfSLuiz Capitulino rpid = waitpid(pid, status, 0); 72d220a6dfSLuiz Capitulino } while (rpid == -1 && errno == EINTR); 73d220a6dfSLuiz Capitulino 74d220a6dfSLuiz Capitulino if (rpid == -1) { 7577dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to wait for child (pid: %d)", 7677dbc81bSMarkus Armbruster pid); 77d220a6dfSLuiz Capitulino return; 78d220a6dfSLuiz Capitulino } 79d220a6dfSLuiz Capitulino 80d220a6dfSLuiz Capitulino g_assert(rpid == pid); 81d220a6dfSLuiz Capitulino } 82d220a6dfSLuiz Capitulino 8377dbc81bSMarkus Armbruster void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 84c216e5adSMichael Roth { 85c216e5adSMichael Roth const char *shutdown_flag; 86d220a6dfSLuiz Capitulino Error *local_err = NULL; 87d220a6dfSLuiz Capitulino pid_t pid; 883674838cSLuiz Capitulino int status; 89c216e5adSMichael Roth 90c216e5adSMichael Roth slog("guest-shutdown called, mode: %s", mode); 91c216e5adSMichael Roth if (!has_mode || strcmp(mode, "powerdown") == 0) { 92c216e5adSMichael Roth shutdown_flag = "-P"; 93c216e5adSMichael Roth } else if (strcmp(mode, "halt") == 0) { 94c216e5adSMichael Roth shutdown_flag = "-H"; 95c216e5adSMichael Roth } else if (strcmp(mode, "reboot") == 0) { 96c216e5adSMichael Roth shutdown_flag = "-r"; 97c216e5adSMichael Roth } else { 9877dbc81bSMarkus Armbruster error_setg(errp, 99d220a6dfSLuiz Capitulino "mode is invalid (valid values are: halt|powerdown|reboot"); 100c216e5adSMichael Roth return; 101c216e5adSMichael Roth } 102c216e5adSMichael Roth 103d5dd3498SLuiz Capitulino pid = fork(); 104d5dd3498SLuiz Capitulino if (pid == 0) { 105c216e5adSMichael Roth /* child, start the shutdown */ 106c216e5adSMichael Roth setsid(); 1073674838cSLuiz Capitulino reopen_fd_to_null(0); 1083674838cSLuiz Capitulino reopen_fd_to_null(1); 1093674838cSLuiz Capitulino reopen_fd_to_null(2); 110c216e5adSMichael Roth 111485e741cSwhitearchey execle("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0", 1123674838cSLuiz Capitulino "hypervisor initiated shutdown", (char*)NULL, environ); 1133674838cSLuiz Capitulino _exit(EXIT_FAILURE); 114d5dd3498SLuiz Capitulino } else if (pid < 0) { 11577dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 116d5dd3498SLuiz Capitulino return; 117d5dd3498SLuiz Capitulino } 118d5dd3498SLuiz Capitulino 119d220a6dfSLuiz Capitulino ga_wait_child(pid, &status, &local_err); 12084d18f06SMarkus Armbruster if (local_err) { 12177dbc81bSMarkus Armbruster error_propagate(errp, local_err); 122d220a6dfSLuiz Capitulino return; 123d220a6dfSLuiz Capitulino } 124d220a6dfSLuiz Capitulino 125d220a6dfSLuiz Capitulino if (!WIFEXITED(status)) { 12677dbc81bSMarkus Armbruster error_setg(errp, "child process has terminated abnormally"); 127d220a6dfSLuiz Capitulino return; 128d220a6dfSLuiz Capitulino } 129d220a6dfSLuiz Capitulino 130d220a6dfSLuiz Capitulino if (WEXITSTATUS(status)) { 13177dbc81bSMarkus Armbruster error_setg(errp, "child process has failed to shutdown"); 132d220a6dfSLuiz Capitulino return; 133d220a6dfSLuiz Capitulino } 134d220a6dfSLuiz Capitulino 135085d8134SPeter Maydell /* succeeded */ 136c216e5adSMichael Roth } 137c216e5adSMichael Roth 1386912e6a9SLei Li int64_t qmp_guest_get_time(Error **errp) 1396912e6a9SLei Li { 1406912e6a9SLei Li int ret; 1416912e6a9SLei Li qemu_timeval tq; 1426912e6a9SLei Li 1436912e6a9SLei Li ret = qemu_gettimeofday(&tq); 1446912e6a9SLei Li if (ret < 0) { 1456912e6a9SLei Li error_setg_errno(errp, errno, "Failed to get time"); 1466912e6a9SLei Li return -1; 1476912e6a9SLei Li } 1486912e6a9SLei Li 1499be38598SEduardo Habkost return tq.tv_sec * 1000000000LL + tq.tv_usec * 1000; 1506912e6a9SLei Li } 1516912e6a9SLei Li 1522c958923SMichal Privoznik void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 153a1bca57fSLei Li { 154a1bca57fSLei Li int ret; 155a1bca57fSLei Li int status; 156a1bca57fSLei Li pid_t pid; 157a1bca57fSLei Li Error *local_err = NULL; 158a1bca57fSLei Li struct timeval tv; 1595c6096e5SCornelia Huck static const char hwclock_path[] = "/sbin/hwclock"; 1605c6096e5SCornelia Huck static int hwclock_available = -1; 1615c6096e5SCornelia Huck 1625c6096e5SCornelia Huck if (hwclock_available < 0) { 1635c6096e5SCornelia Huck hwclock_available = (access(hwclock_path, X_OK) == 0); 1645c6096e5SCornelia Huck } 1655c6096e5SCornelia Huck 1665c6096e5SCornelia Huck if (!hwclock_available) { 1675c6096e5SCornelia Huck error_setg(errp, QERR_UNSUPPORTED); 1685c6096e5SCornelia Huck return; 1695c6096e5SCornelia Huck } 170a1bca57fSLei Li 1712c958923SMichal Privoznik /* If user has passed a time, validate and set it. */ 1722c958923SMichal Privoznik if (has_time) { 17300d2f370SMarc-André Lureau GDate date = { 0, }; 17400d2f370SMarc-André Lureau 175a1bca57fSLei Li /* year-2038 will overflow in case time_t is 32bit */ 176a1bca57fSLei Li if (time_ns / 1000000000 != (time_t)(time_ns / 1000000000)) { 177a1bca57fSLei Li error_setg(errp, "Time %" PRId64 " is too large", time_ns); 178a1bca57fSLei Li return; 179a1bca57fSLei Li } 180a1bca57fSLei Li 181a1bca57fSLei Li tv.tv_sec = time_ns / 1000000000; 182a1bca57fSLei Li tv.tv_usec = (time_ns % 1000000000) / 1000; 18300d2f370SMarc-André Lureau g_date_set_time_t(&date, tv.tv_sec); 18400d2f370SMarc-André Lureau if (date.year < 1970 || date.year >= 2070) { 18500d2f370SMarc-André Lureau error_setg_errno(errp, errno, "Invalid time"); 18600d2f370SMarc-André Lureau return; 18700d2f370SMarc-André Lureau } 188a1bca57fSLei Li 189a1bca57fSLei Li ret = settimeofday(&tv, NULL); 190a1bca57fSLei Li if (ret < 0) { 191a1bca57fSLei Li error_setg_errno(errp, errno, "Failed to set time to guest"); 192a1bca57fSLei Li return; 193a1bca57fSLei Li } 1942c958923SMichal Privoznik } 195a1bca57fSLei Li 1962c958923SMichal Privoznik /* Now, if user has passed a time to set and the system time is set, we 1972c958923SMichal Privoznik * just need to synchronize the hardware clock. However, if no time was 1982c958923SMichal Privoznik * passed, user is requesting the opposite: set the system time from the 1991634df56SAmos Kong * hardware clock (RTC). */ 200a1bca57fSLei Li pid = fork(); 201a1bca57fSLei Li if (pid == 0) { 202a1bca57fSLei Li setsid(); 203a1bca57fSLei Li reopen_fd_to_null(0); 204a1bca57fSLei Li reopen_fd_to_null(1); 205a1bca57fSLei Li reopen_fd_to_null(2); 206a1bca57fSLei Li 2072c958923SMichal Privoznik /* Use '/sbin/hwclock -w' to set RTC from the system time, 2082c958923SMichal Privoznik * or '/sbin/hwclock -s' to set the system time from RTC. */ 2095c6096e5SCornelia Huck execle(hwclock_path, "hwclock", has_time ? "-w" : "-s", 2102c958923SMichal Privoznik NULL, environ); 211a1bca57fSLei Li _exit(EXIT_FAILURE); 212a1bca57fSLei Li } else if (pid < 0) { 213a1bca57fSLei Li error_setg_errno(errp, errno, "failed to create child process"); 214a1bca57fSLei Li return; 215a1bca57fSLei Li } 216a1bca57fSLei Li 217a1bca57fSLei Li ga_wait_child(pid, &status, &local_err); 21884d18f06SMarkus Armbruster if (local_err) { 219a1bca57fSLei Li error_propagate(errp, local_err); 220a1bca57fSLei Li return; 221a1bca57fSLei Li } 222a1bca57fSLei Li 223a1bca57fSLei Li if (!WIFEXITED(status)) { 224a1bca57fSLei Li error_setg(errp, "child process has terminated abnormally"); 225a1bca57fSLei Li return; 226a1bca57fSLei Li } 227a1bca57fSLei Li 228a1bca57fSLei Li if (WEXITSTATUS(status)) { 229a1bca57fSLei Li error_setg(errp, "hwclock failed to set hardware clock to system time"); 230a1bca57fSLei Li return; 231a1bca57fSLei Li } 232a1bca57fSLei Li } 233a1bca57fSLei Li 234895b00f6SMarc-André Lureau typedef enum { 235895b00f6SMarc-André Lureau RW_STATE_NEW, 236895b00f6SMarc-André Lureau RW_STATE_READING, 237895b00f6SMarc-André Lureau RW_STATE_WRITING, 238895b00f6SMarc-André Lureau } RwState; 239895b00f6SMarc-André Lureau 240c216e5adSMichael Roth typedef struct GuestFileHandle { 241c216e5adSMichael Roth uint64_t id; 242c216e5adSMichael Roth FILE *fh; 243895b00f6SMarc-André Lureau RwState state; 244c216e5adSMichael Roth QTAILQ_ENTRY(GuestFileHandle) next; 245c216e5adSMichael Roth } GuestFileHandle; 246c216e5adSMichael Roth 247c216e5adSMichael Roth static struct { 248c216e5adSMichael Roth QTAILQ_HEAD(, GuestFileHandle) filehandles; 249b4fe97c8SDenis V. Lunev } guest_file_state = { 250b4fe97c8SDenis V. Lunev .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 251b4fe97c8SDenis V. Lunev }; 252c216e5adSMichael Roth 25339097dafSMichael Roth static int64_t guest_file_handle_add(FILE *fh, Error **errp) 254c216e5adSMichael Roth { 255c216e5adSMichael Roth GuestFileHandle *gfh; 25639097dafSMichael Roth int64_t handle; 25739097dafSMichael Roth 25839097dafSMichael Roth handle = ga_get_fd_handle(ga_state, errp); 259a903f40cSMarkus Armbruster if (handle < 0) { 260a903f40cSMarkus Armbruster return -1; 26139097dafSMichael Roth } 262c216e5adSMichael Roth 263f3a06403SMarkus Armbruster gfh = g_new0(GuestFileHandle, 1); 26439097dafSMichael Roth gfh->id = handle; 265c216e5adSMichael Roth gfh->fh = fh; 266c216e5adSMichael Roth QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 26739097dafSMichael Roth 26839097dafSMichael Roth return handle; 269c216e5adSMichael Roth } 270c216e5adSMichael Roth 27177dbc81bSMarkus Armbruster static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 272c216e5adSMichael Roth { 273c216e5adSMichael Roth GuestFileHandle *gfh; 274c216e5adSMichael Roth 275c216e5adSMichael Roth QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) 276c216e5adSMichael Roth { 277c216e5adSMichael Roth if (gfh->id == id) { 278c216e5adSMichael Roth return gfh; 279c216e5adSMichael Roth } 280c216e5adSMichael Roth } 281c216e5adSMichael Roth 28277dbc81bSMarkus Armbruster error_setg(errp, "handle '%" PRId64 "' has not been found", id); 283c216e5adSMichael Roth return NULL; 284c216e5adSMichael Roth } 285c216e5adSMichael Roth 286c689b4f1SLaszlo Ersek typedef const char * const ccpc; 287c689b4f1SLaszlo Ersek 2888fe6bbcaSLaszlo Ersek #ifndef O_BINARY 2898fe6bbcaSLaszlo Ersek #define O_BINARY 0 2908fe6bbcaSLaszlo Ersek #endif 2918fe6bbcaSLaszlo Ersek 292c689b4f1SLaszlo Ersek /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */ 293c689b4f1SLaszlo Ersek static const struct { 294c689b4f1SLaszlo Ersek ccpc *forms; 295c689b4f1SLaszlo Ersek int oflag_base; 296c689b4f1SLaszlo Ersek } guest_file_open_modes[] = { 2978fe6bbcaSLaszlo Ersek { (ccpc[]){ "r", NULL }, O_RDONLY }, 2988fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb", NULL }, O_RDONLY | O_BINARY }, 2998fe6bbcaSLaszlo Ersek { (ccpc[]){ "w", NULL }, O_WRONLY | O_CREAT | O_TRUNC }, 3008fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb", NULL }, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY }, 3018fe6bbcaSLaszlo Ersek { (ccpc[]){ "a", NULL }, O_WRONLY | O_CREAT | O_APPEND }, 3028fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab", NULL }, O_WRONLY | O_CREAT | O_APPEND | O_BINARY }, 3038fe6bbcaSLaszlo Ersek { (ccpc[]){ "r+", NULL }, O_RDWR }, 3048fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb+", "r+b", NULL }, O_RDWR | O_BINARY }, 3058fe6bbcaSLaszlo Ersek { (ccpc[]){ "w+", NULL }, O_RDWR | O_CREAT | O_TRUNC }, 3068fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb+", "w+b", NULL }, O_RDWR | O_CREAT | O_TRUNC | O_BINARY }, 3078fe6bbcaSLaszlo Ersek { (ccpc[]){ "a+", NULL }, O_RDWR | O_CREAT | O_APPEND }, 3088fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab+", "a+b", NULL }, O_RDWR | O_CREAT | O_APPEND | O_BINARY } 309c689b4f1SLaszlo Ersek }; 310c689b4f1SLaszlo Ersek 311c689b4f1SLaszlo Ersek static int 31277dbc81bSMarkus Armbruster find_open_flag(const char *mode_str, Error **errp) 313c689b4f1SLaszlo Ersek { 314c689b4f1SLaszlo Ersek unsigned mode; 315c689b4f1SLaszlo Ersek 316c689b4f1SLaszlo Ersek for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 317c689b4f1SLaszlo Ersek ccpc *form; 318c689b4f1SLaszlo Ersek 319c689b4f1SLaszlo Ersek form = guest_file_open_modes[mode].forms; 320c689b4f1SLaszlo Ersek while (*form != NULL && strcmp(*form, mode_str) != 0) { 321c689b4f1SLaszlo Ersek ++form; 322c689b4f1SLaszlo Ersek } 323c689b4f1SLaszlo Ersek if (*form != NULL) { 324c689b4f1SLaszlo Ersek break; 325c689b4f1SLaszlo Ersek } 326c689b4f1SLaszlo Ersek } 327c689b4f1SLaszlo Ersek 328c689b4f1SLaszlo Ersek if (mode == ARRAY_SIZE(guest_file_open_modes)) { 32977dbc81bSMarkus Armbruster error_setg(errp, "invalid file open mode '%s'", mode_str); 330c689b4f1SLaszlo Ersek return -1; 331c689b4f1SLaszlo Ersek } 332c689b4f1SLaszlo Ersek return guest_file_open_modes[mode].oflag_base | O_NOCTTY | O_NONBLOCK; 333c689b4f1SLaszlo Ersek } 334c689b4f1SLaszlo Ersek 335c689b4f1SLaszlo Ersek #define DEFAULT_NEW_FILE_MODE (S_IRUSR | S_IWUSR | \ 336c689b4f1SLaszlo Ersek S_IRGRP | S_IWGRP | \ 337c689b4f1SLaszlo Ersek S_IROTH | S_IWOTH) 338c689b4f1SLaszlo Ersek 339c689b4f1SLaszlo Ersek static FILE * 34077dbc81bSMarkus Armbruster safe_open_or_create(const char *path, const char *mode, Error **errp) 341c689b4f1SLaszlo Ersek { 342c689b4f1SLaszlo Ersek Error *local_err = NULL; 343c689b4f1SLaszlo Ersek int oflag; 344c689b4f1SLaszlo Ersek 345c689b4f1SLaszlo Ersek oflag = find_open_flag(mode, &local_err); 346c689b4f1SLaszlo Ersek if (local_err == NULL) { 347c689b4f1SLaszlo Ersek int fd; 348c689b4f1SLaszlo Ersek 349c689b4f1SLaszlo Ersek /* If the caller wants / allows creation of a new file, we implement it 350c689b4f1SLaszlo Ersek * with a two step process: open() + (open() / fchmod()). 351c689b4f1SLaszlo Ersek * 352c689b4f1SLaszlo Ersek * First we insist on creating the file exclusively as a new file. If 353c689b4f1SLaszlo Ersek * that succeeds, we're free to set any file-mode bits on it. (The 354c689b4f1SLaszlo Ersek * motivation is that we want to set those file-mode bits independently 355c689b4f1SLaszlo Ersek * of the current umask.) 356c689b4f1SLaszlo Ersek * 357c689b4f1SLaszlo Ersek * If the exclusive creation fails because the file already exists 358c689b4f1SLaszlo Ersek * (EEXIST is not possible for any other reason), we just attempt to 359c689b4f1SLaszlo Ersek * open the file, but in this case we won't be allowed to change the 360c689b4f1SLaszlo Ersek * file-mode bits on the preexistent file. 361c689b4f1SLaszlo Ersek * 362c689b4f1SLaszlo Ersek * The pathname should never disappear between the two open()s in 363c689b4f1SLaszlo Ersek * practice. If it happens, then someone very likely tried to race us. 364c689b4f1SLaszlo Ersek * In this case just go ahead and report the ENOENT from the second 365c689b4f1SLaszlo Ersek * open() to the caller. 366c689b4f1SLaszlo Ersek * 367c689b4f1SLaszlo Ersek * If the caller wants to open a preexistent file, then the first 368c689b4f1SLaszlo Ersek * open() is decisive and its third argument is ignored, and the second 369c689b4f1SLaszlo Ersek * open() and the fchmod() are never called. 370c689b4f1SLaszlo Ersek */ 371c689b4f1SLaszlo Ersek fd = open(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0); 372c689b4f1SLaszlo Ersek if (fd == -1 && errno == EEXIST) { 373c689b4f1SLaszlo Ersek oflag &= ~(unsigned)O_CREAT; 374c689b4f1SLaszlo Ersek fd = open(path, oflag); 375c689b4f1SLaszlo Ersek } 376c689b4f1SLaszlo Ersek 377c689b4f1SLaszlo Ersek if (fd == -1) { 378c689b4f1SLaszlo Ersek error_setg_errno(&local_err, errno, "failed to open file '%s' " 379c689b4f1SLaszlo Ersek "(mode: '%s')", path, mode); 380c689b4f1SLaszlo Ersek } else { 381c689b4f1SLaszlo Ersek qemu_set_cloexec(fd); 382c689b4f1SLaszlo Ersek 383c689b4f1SLaszlo Ersek if ((oflag & O_CREAT) && fchmod(fd, DEFAULT_NEW_FILE_MODE) == -1) { 384c689b4f1SLaszlo Ersek error_setg_errno(&local_err, errno, "failed to set permission " 385c689b4f1SLaszlo Ersek "0%03o on new file '%s' (mode: '%s')", 386c689b4f1SLaszlo Ersek (unsigned)DEFAULT_NEW_FILE_MODE, path, mode); 387c689b4f1SLaszlo Ersek } else { 388c689b4f1SLaszlo Ersek FILE *f; 389c689b4f1SLaszlo Ersek 390c689b4f1SLaszlo Ersek f = fdopen(fd, mode); 391c689b4f1SLaszlo Ersek if (f == NULL) { 392c689b4f1SLaszlo Ersek error_setg_errno(&local_err, errno, "failed to associate " 393c689b4f1SLaszlo Ersek "stdio stream with file descriptor %d, " 394c689b4f1SLaszlo Ersek "file '%s' (mode: '%s')", fd, path, mode); 395c689b4f1SLaszlo Ersek } else { 396c689b4f1SLaszlo Ersek return f; 397c689b4f1SLaszlo Ersek } 398c689b4f1SLaszlo Ersek } 399c689b4f1SLaszlo Ersek 400c689b4f1SLaszlo Ersek close(fd); 4012b720018SLaszlo Ersek if (oflag & O_CREAT) { 4022b720018SLaszlo Ersek unlink(path); 4032b720018SLaszlo Ersek } 404c689b4f1SLaszlo Ersek } 405c689b4f1SLaszlo Ersek } 406c689b4f1SLaszlo Ersek 40777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 408c689b4f1SLaszlo Ersek return NULL; 409c689b4f1SLaszlo Ersek } 410c689b4f1SLaszlo Ersek 41177dbc81bSMarkus Armbruster int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, 41277dbc81bSMarkus Armbruster Error **errp) 413c216e5adSMichael Roth { 414c216e5adSMichael Roth FILE *fh; 415c689b4f1SLaszlo Ersek Error *local_err = NULL; 41685b6f6f5SSimon Zolin int64_t handle; 417c216e5adSMichael Roth 418c216e5adSMichael Roth if (!has_mode) { 419c216e5adSMichael Roth mode = "r"; 420c216e5adSMichael Roth } 421c216e5adSMichael Roth slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 422c689b4f1SLaszlo Ersek fh = safe_open_or_create(path, mode, &local_err); 423c689b4f1SLaszlo Ersek if (local_err != NULL) { 42477dbc81bSMarkus Armbruster error_propagate(errp, local_err); 425c216e5adSMichael Roth return -1; 426c216e5adSMichael Roth } 427c216e5adSMichael Roth 428c216e5adSMichael Roth /* set fd non-blocking to avoid common use cases (like reading from a 429c216e5adSMichael Roth * named pipe) from hanging the agent 430c216e5adSMichael Roth */ 43112505396SDenis V. Lunev qemu_set_nonblock(fileno(fh)); 432c216e5adSMichael Roth 43377dbc81bSMarkus Armbruster handle = guest_file_handle_add(fh, errp); 434a903f40cSMarkus Armbruster if (handle < 0) { 43539097dafSMichael Roth fclose(fh); 43639097dafSMichael Roth return -1; 43739097dafSMichael Roth } 43839097dafSMichael Roth 439d607a523SStefan Weil slog("guest-file-open, handle: %" PRId64, handle); 44039097dafSMichael Roth return handle; 441c216e5adSMichael Roth } 442c216e5adSMichael Roth 44377dbc81bSMarkus Armbruster void qmp_guest_file_close(int64_t handle, Error **errp) 444c216e5adSMichael Roth { 44577dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 446c216e5adSMichael Roth int ret; 447c216e5adSMichael Roth 448d607a523SStefan Weil slog("guest-file-close called, handle: %" PRId64, handle); 449c216e5adSMichael Roth if (!gfh) { 450c216e5adSMichael Roth return; 451c216e5adSMichael Roth } 452c216e5adSMichael Roth 453c216e5adSMichael Roth ret = fclose(gfh->fh); 4543ac4b7c5SLuiz Capitulino if (ret == EOF) { 45577dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to close handle"); 456c216e5adSMichael Roth return; 457c216e5adSMichael Roth } 458c216e5adSMichael Roth 459c216e5adSMichael Roth QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 460c216e5adSMichael Roth g_free(gfh); 461c216e5adSMichael Roth } 462c216e5adSMichael Roth 463c216e5adSMichael Roth struct GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count, 46477dbc81bSMarkus Armbruster int64_t count, Error **errp) 465c216e5adSMichael Roth { 46677dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 467c216e5adSMichael Roth GuestFileRead *read_data = NULL; 468c216e5adSMichael Roth guchar *buf; 469c216e5adSMichael Roth FILE *fh; 470c216e5adSMichael Roth size_t read_count; 471c216e5adSMichael Roth 472c216e5adSMichael Roth if (!gfh) { 473c216e5adSMichael Roth return NULL; 474c216e5adSMichael Roth } 475c216e5adSMichael Roth 476c216e5adSMichael Roth if (!has_count) { 477c216e5adSMichael Roth count = QGA_READ_COUNT_DEFAULT; 478141b1974SPrasad J Pandit } else if (count < 0 || count >= UINT32_MAX) { 47977dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 480db3edb66SLuiz Capitulino count); 481c216e5adSMichael Roth return NULL; 482c216e5adSMichael Roth } 483c216e5adSMichael Roth 484c216e5adSMichael Roth fh = gfh->fh; 485895b00f6SMarc-André Lureau 486895b00f6SMarc-André Lureau /* explicitly flush when switching from writing to reading */ 487895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_WRITING) { 488895b00f6SMarc-André Lureau int ret = fflush(fh); 489895b00f6SMarc-André Lureau if (ret == EOF) { 490895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to flush file"); 491895b00f6SMarc-André Lureau return NULL; 492895b00f6SMarc-André Lureau } 493895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 494895b00f6SMarc-André Lureau } 495895b00f6SMarc-André Lureau 496c216e5adSMichael Roth buf = g_malloc0(count+1); 497c216e5adSMichael Roth read_count = fread(buf, 1, count, fh); 498c216e5adSMichael Roth if (ferror(fh)) { 49977dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to read file"); 500d607a523SStefan Weil slog("guest-file-read failed, handle: %" PRId64, handle); 501c216e5adSMichael Roth } else { 502c216e5adSMichael Roth buf[read_count] = 0; 503f3a06403SMarkus Armbruster read_data = g_new0(GuestFileRead, 1); 504c216e5adSMichael Roth read_data->count = read_count; 505c216e5adSMichael Roth read_data->eof = feof(fh); 506c216e5adSMichael Roth if (read_count) { 507c216e5adSMichael Roth read_data->buf_b64 = g_base64_encode(buf, read_count); 508c216e5adSMichael Roth } 509895b00f6SMarc-André Lureau gfh->state = RW_STATE_READING; 510c216e5adSMichael Roth } 511c216e5adSMichael Roth g_free(buf); 512c216e5adSMichael Roth clearerr(fh); 513c216e5adSMichael Roth 514c216e5adSMichael Roth return read_data; 515c216e5adSMichael Roth } 516c216e5adSMichael Roth 517c216e5adSMichael Roth GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 51877dbc81bSMarkus Armbruster bool has_count, int64_t count, 51977dbc81bSMarkus Armbruster Error **errp) 520c216e5adSMichael Roth { 521c216e5adSMichael Roth GuestFileWrite *write_data = NULL; 522c216e5adSMichael Roth guchar *buf; 523c216e5adSMichael Roth gsize buf_len; 524c216e5adSMichael Roth int write_count; 52577dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 526c216e5adSMichael Roth FILE *fh; 527c216e5adSMichael Roth 528c216e5adSMichael Roth if (!gfh) { 529c216e5adSMichael Roth return NULL; 530c216e5adSMichael Roth } 531c216e5adSMichael Roth 532c216e5adSMichael Roth fh = gfh->fh; 533895b00f6SMarc-André Lureau 534895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_READING) { 535895b00f6SMarc-André Lureau int ret = fseek(fh, 0, SEEK_CUR); 536895b00f6SMarc-André Lureau if (ret == -1) { 537895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to seek file"); 538895b00f6SMarc-André Lureau return NULL; 539895b00f6SMarc-André Lureau } 540895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 541895b00f6SMarc-André Lureau } 542895b00f6SMarc-André Lureau 543920639caSDaniel P. Berrange buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 544920639caSDaniel P. Berrange if (!buf) { 545920639caSDaniel P. Berrange return NULL; 546920639caSDaniel P. Berrange } 547c216e5adSMichael Roth 548c216e5adSMichael Roth if (!has_count) { 549c216e5adSMichael Roth count = buf_len; 550c216e5adSMichael Roth } else if (count < 0 || count > buf_len) { 55177dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 552db3edb66SLuiz Capitulino count); 553c216e5adSMichael Roth g_free(buf); 554c216e5adSMichael Roth return NULL; 555c216e5adSMichael Roth } 556c216e5adSMichael Roth 557c216e5adSMichael Roth write_count = fwrite(buf, 1, count, fh); 558c216e5adSMichael Roth if (ferror(fh)) { 55977dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to write to file"); 560d607a523SStefan Weil slog("guest-file-write failed, handle: %" PRId64, handle); 561c216e5adSMichael Roth } else { 562f3a06403SMarkus Armbruster write_data = g_new0(GuestFileWrite, 1); 563c216e5adSMichael Roth write_data->count = write_count; 564c216e5adSMichael Roth write_data->eof = feof(fh); 565895b00f6SMarc-André Lureau gfh->state = RW_STATE_WRITING; 566c216e5adSMichael Roth } 567c216e5adSMichael Roth g_free(buf); 568c216e5adSMichael Roth clearerr(fh); 569c216e5adSMichael Roth 570c216e5adSMichael Roth return write_data; 571c216e5adSMichael Roth } 572c216e5adSMichael Roth 573c216e5adSMichael Roth struct GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 5740b4b4938SEric Blake GuestFileWhence *whence_code, 5750b4b4938SEric Blake Error **errp) 576c216e5adSMichael Roth { 57777dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 578c216e5adSMichael Roth GuestFileSeek *seek_data = NULL; 579c216e5adSMichael Roth FILE *fh; 580c216e5adSMichael Roth int ret; 5810a982b1bSEric Blake int whence; 5820b4b4938SEric Blake Error *err = NULL; 583c216e5adSMichael Roth 584c216e5adSMichael Roth if (!gfh) { 585c216e5adSMichael Roth return NULL; 586c216e5adSMichael Roth } 587c216e5adSMichael Roth 5880a982b1bSEric Blake /* We stupidly exposed 'whence':'int' in our qapi */ 5890b4b4938SEric Blake whence = ga_parse_whence(whence_code, &err); 5900b4b4938SEric Blake if (err) { 5910b4b4938SEric Blake error_propagate(errp, err); 5920a982b1bSEric Blake return NULL; 5930a982b1bSEric Blake } 5940a982b1bSEric Blake 595c216e5adSMichael Roth fh = gfh->fh; 596c216e5adSMichael Roth ret = fseek(fh, offset, whence); 597c216e5adSMichael Roth if (ret == -1) { 59877dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to seek file"); 599895b00f6SMarc-André Lureau if (errno == ESPIPE) { 600895b00f6SMarc-André Lureau /* file is non-seekable, stdio shouldn't be buffering anyways */ 601895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 602895b00f6SMarc-André Lureau } 603c216e5adSMichael Roth } else { 60410b7c5ddSMarkus Armbruster seek_data = g_new0(GuestFileSeek, 1); 605c216e5adSMichael Roth seek_data->position = ftell(fh); 606c216e5adSMichael Roth seek_data->eof = feof(fh); 607895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 608c216e5adSMichael Roth } 609c216e5adSMichael Roth clearerr(fh); 610c216e5adSMichael Roth 611c216e5adSMichael Roth return seek_data; 612c216e5adSMichael Roth } 613c216e5adSMichael Roth 61477dbc81bSMarkus Armbruster void qmp_guest_file_flush(int64_t handle, Error **errp) 615c216e5adSMichael Roth { 61677dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 617c216e5adSMichael Roth FILE *fh; 618c216e5adSMichael Roth int ret; 619c216e5adSMichael Roth 620c216e5adSMichael Roth if (!gfh) { 621c216e5adSMichael Roth return; 622c216e5adSMichael Roth } 623c216e5adSMichael Roth 624c216e5adSMichael Roth fh = gfh->fh; 625c216e5adSMichael Roth ret = fflush(fh); 626c216e5adSMichael Roth if (ret == EOF) { 62777dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to flush file"); 628895b00f6SMarc-André Lureau } else { 629895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 630c216e5adSMichael Roth } 631c216e5adSMichael Roth } 632c216e5adSMichael Roth 633e72c3f2eSMichael Roth /* linux-specific implementations. avoid this if at all possible. */ 634e72c3f2eSMichael Roth #if defined(__linux__) 635e72c3f2eSMichael Roth 636eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) 637af02203fSPaolo Bonzini typedef struct FsMount { 638c216e5adSMichael Roth char *dirname; 639c216e5adSMichael Roth char *devtype; 64046d4c572STomoki Sekiyama unsigned int devmajor, devminor; 641af02203fSPaolo Bonzini QTAILQ_ENTRY(FsMount) next; 642af02203fSPaolo Bonzini } FsMount; 643c216e5adSMichael Roth 644e5d9adbdSTomoki Sekiyama typedef QTAILQ_HEAD(FsMountList, FsMount) FsMountList; 6459e8aded4SMichael Roth 646af02203fSPaolo Bonzini static void free_fs_mount_list(FsMountList *mounts) 647c216e5adSMichael Roth { 648af02203fSPaolo Bonzini FsMount *mount, *temp; 649c216e5adSMichael Roth 6509e8aded4SMichael Roth if (!mounts) { 6519e8aded4SMichael Roth return; 6529e8aded4SMichael Roth } 6539e8aded4SMichael Roth 6549e8aded4SMichael Roth QTAILQ_FOREACH_SAFE(mount, mounts, next, temp) { 6559e8aded4SMichael Roth QTAILQ_REMOVE(mounts, mount, next); 656c216e5adSMichael Roth g_free(mount->dirname); 657c216e5adSMichael Roth g_free(mount->devtype); 658c216e5adSMichael Roth g_free(mount); 659c216e5adSMichael Roth } 6609e8aded4SMichael Roth } 6619e8aded4SMichael Roth 66246d4c572STomoki Sekiyama static int dev_major_minor(const char *devpath, 66346d4c572STomoki Sekiyama unsigned int *devmajor, unsigned int *devminor) 66446d4c572STomoki Sekiyama { 66546d4c572STomoki Sekiyama struct stat st; 66646d4c572STomoki Sekiyama 66746d4c572STomoki Sekiyama *devmajor = 0; 66846d4c572STomoki Sekiyama *devminor = 0; 66946d4c572STomoki Sekiyama 67046d4c572STomoki Sekiyama if (stat(devpath, &st) < 0) { 67146d4c572STomoki Sekiyama slog("failed to stat device file '%s': %s", devpath, strerror(errno)); 67246d4c572STomoki Sekiyama return -1; 67346d4c572STomoki Sekiyama } 67446d4c572STomoki Sekiyama if (S_ISDIR(st.st_mode)) { 67546d4c572STomoki Sekiyama /* It is bind mount */ 67646d4c572STomoki Sekiyama return -2; 67746d4c572STomoki Sekiyama } 67846d4c572STomoki Sekiyama if (S_ISBLK(st.st_mode)) { 67946d4c572STomoki Sekiyama *devmajor = major(st.st_rdev); 68046d4c572STomoki Sekiyama *devminor = minor(st.st_rdev); 68146d4c572STomoki Sekiyama return 0; 68246d4c572STomoki Sekiyama } 68346d4c572STomoki Sekiyama return -1; 68446d4c572STomoki Sekiyama } 68546d4c572STomoki Sekiyama 6869e8aded4SMichael Roth /* 6879e8aded4SMichael Roth * Walk the mount table and build a list of local file systems 6889e8aded4SMichael Roth */ 68946d4c572STomoki Sekiyama static void build_fs_mount_list_from_mtab(FsMountList *mounts, Error **errp) 6909e8aded4SMichael Roth { 6919e8aded4SMichael Roth struct mntent *ment; 692af02203fSPaolo Bonzini FsMount *mount; 6939e2fa418SMichael Roth char const *mtab = "/proc/self/mounts"; 6949e8aded4SMichael Roth FILE *fp; 69546d4c572STomoki Sekiyama unsigned int devmajor, devminor; 696c216e5adSMichael Roth 697c216e5adSMichael Roth fp = setmntent(mtab, "r"); 698c216e5adSMichael Roth if (!fp) { 69977dbc81bSMarkus Armbruster error_setg(errp, "failed to open mtab file: '%s'", mtab); 700261551d1SLuiz Capitulino return; 701c216e5adSMichael Roth } 702c216e5adSMichael Roth 703c216e5adSMichael Roth while ((ment = getmntent(fp))) { 704c216e5adSMichael Roth /* 705c216e5adSMichael Roth * An entry which device name doesn't start with a '/' is 706c216e5adSMichael Roth * either a dummy file system or a network file system. 707c216e5adSMichael Roth * Add special handling for smbfs and cifs as is done by 708c216e5adSMichael Roth * coreutils as well. 709c216e5adSMichael Roth */ 710c216e5adSMichael Roth if ((ment->mnt_fsname[0] != '/') || 711c216e5adSMichael Roth (strcmp(ment->mnt_type, "smbfs") == 0) || 712c216e5adSMichael Roth (strcmp(ment->mnt_type, "cifs") == 0)) { 713c216e5adSMichael Roth continue; 714c216e5adSMichael Roth } 71546d4c572STomoki Sekiyama if (dev_major_minor(ment->mnt_fsname, &devmajor, &devminor) == -2) { 71646d4c572STomoki Sekiyama /* Skip bind mounts */ 71746d4c572STomoki Sekiyama continue; 71846d4c572STomoki Sekiyama } 719c216e5adSMichael Roth 720f3a06403SMarkus Armbruster mount = g_new0(FsMount, 1); 721c216e5adSMichael Roth mount->dirname = g_strdup(ment->mnt_dir); 722c216e5adSMichael Roth mount->devtype = g_strdup(ment->mnt_type); 72346d4c572STomoki Sekiyama mount->devmajor = devmajor; 72446d4c572STomoki Sekiyama mount->devminor = devminor; 725c216e5adSMichael Roth 7269e8aded4SMichael Roth QTAILQ_INSERT_TAIL(mounts, mount, next); 727c216e5adSMichael Roth } 728c216e5adSMichael Roth 729c216e5adSMichael Roth endmntent(fp); 730c216e5adSMichael Roth } 73146d4c572STomoki Sekiyama 73246d4c572STomoki Sekiyama static void decode_mntname(char *name, int len) 73346d4c572STomoki Sekiyama { 73446d4c572STomoki Sekiyama int i, j = 0; 73546d4c572STomoki Sekiyama for (i = 0; i <= len; i++) { 73646d4c572STomoki Sekiyama if (name[i] != '\\') { 73746d4c572STomoki Sekiyama name[j++] = name[i]; 73846d4c572STomoki Sekiyama } else if (name[i + 1] == '\\') { 73946d4c572STomoki Sekiyama name[j++] = '\\'; 74046d4c572STomoki Sekiyama i++; 74146d4c572STomoki Sekiyama } else if (name[i + 1] >= '0' && name[i + 1] <= '3' && 74246d4c572STomoki Sekiyama name[i + 2] >= '0' && name[i + 2] <= '7' && 74346d4c572STomoki Sekiyama name[i + 3] >= '0' && name[i + 3] <= '7') { 74446d4c572STomoki Sekiyama name[j++] = (name[i + 1] - '0') * 64 + 74546d4c572STomoki Sekiyama (name[i + 2] - '0') * 8 + 74646d4c572STomoki Sekiyama (name[i + 3] - '0'); 74746d4c572STomoki Sekiyama i += 3; 74846d4c572STomoki Sekiyama } else { 74946d4c572STomoki Sekiyama name[j++] = name[i]; 75046d4c572STomoki Sekiyama } 75146d4c572STomoki Sekiyama } 75246d4c572STomoki Sekiyama } 75346d4c572STomoki Sekiyama 75446d4c572STomoki Sekiyama static void build_fs_mount_list(FsMountList *mounts, Error **errp) 75546d4c572STomoki Sekiyama { 75646d4c572STomoki Sekiyama FsMount *mount; 75746d4c572STomoki Sekiyama char const *mountinfo = "/proc/self/mountinfo"; 75846d4c572STomoki Sekiyama FILE *fp; 75946d4c572STomoki Sekiyama char *line = NULL, *dash; 76046d4c572STomoki Sekiyama size_t n; 76146d4c572STomoki Sekiyama char check; 76246d4c572STomoki Sekiyama unsigned int devmajor, devminor; 76346d4c572STomoki Sekiyama int ret, dir_s, dir_e, type_s, type_e, dev_s, dev_e; 76446d4c572STomoki Sekiyama 76546d4c572STomoki Sekiyama fp = fopen(mountinfo, "r"); 76646d4c572STomoki Sekiyama if (!fp) { 76746d4c572STomoki Sekiyama build_fs_mount_list_from_mtab(mounts, errp); 76846d4c572STomoki Sekiyama return; 76946d4c572STomoki Sekiyama } 77046d4c572STomoki Sekiyama 77146d4c572STomoki Sekiyama while (getline(&line, &n, fp) != -1) { 77246d4c572STomoki Sekiyama ret = sscanf(line, "%*u %*u %u:%u %*s %n%*s%n%c", 77346d4c572STomoki Sekiyama &devmajor, &devminor, &dir_s, &dir_e, &check); 77446d4c572STomoki Sekiyama if (ret < 3) { 77546d4c572STomoki Sekiyama continue; 77646d4c572STomoki Sekiyama } 77746d4c572STomoki Sekiyama dash = strstr(line + dir_e, " - "); 77846d4c572STomoki Sekiyama if (!dash) { 77946d4c572STomoki Sekiyama continue; 78046d4c572STomoki Sekiyama } 78146d4c572STomoki Sekiyama ret = sscanf(dash, " - %n%*s%n %n%*s%n%c", 78246d4c572STomoki Sekiyama &type_s, &type_e, &dev_s, &dev_e, &check); 78346d4c572STomoki Sekiyama if (ret < 1) { 78446d4c572STomoki Sekiyama continue; 78546d4c572STomoki Sekiyama } 78646d4c572STomoki Sekiyama line[dir_e] = 0; 78746d4c572STomoki Sekiyama dash[type_e] = 0; 78846d4c572STomoki Sekiyama dash[dev_e] = 0; 78946d4c572STomoki Sekiyama decode_mntname(line + dir_s, dir_e - dir_s); 79046d4c572STomoki Sekiyama decode_mntname(dash + dev_s, dev_e - dev_s); 79146d4c572STomoki Sekiyama if (devmajor == 0) { 79246d4c572STomoki Sekiyama /* btrfs reports major number = 0 */ 79346d4c572STomoki Sekiyama if (strcmp("btrfs", dash + type_s) != 0 || 79446d4c572STomoki Sekiyama dev_major_minor(dash + dev_s, &devmajor, &devminor) < 0) { 79546d4c572STomoki Sekiyama continue; 79646d4c572STomoki Sekiyama } 79746d4c572STomoki Sekiyama } 79846d4c572STomoki Sekiyama 799f3a06403SMarkus Armbruster mount = g_new0(FsMount, 1); 80046d4c572STomoki Sekiyama mount->dirname = g_strdup(line + dir_s); 80146d4c572STomoki Sekiyama mount->devtype = g_strdup(dash + type_s); 80246d4c572STomoki Sekiyama mount->devmajor = devmajor; 80346d4c572STomoki Sekiyama mount->devminor = devminor; 80446d4c572STomoki Sekiyama 80546d4c572STomoki Sekiyama QTAILQ_INSERT_TAIL(mounts, mount, next); 80646d4c572STomoki Sekiyama } 80746d4c572STomoki Sekiyama free(line); 80846d4c572STomoki Sekiyama 80946d4c572STomoki Sekiyama fclose(fp); 81046d4c572STomoki Sekiyama } 811eab5fd59SPaolo Bonzini #endif 812eab5fd59SPaolo Bonzini 813eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) 814c216e5adSMichael Roth 81546d4c572STomoki Sekiyama static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) 81646d4c572STomoki Sekiyama { 81746d4c572STomoki Sekiyama char *path; 81846d4c572STomoki Sekiyama char *dpath; 81946d4c572STomoki Sekiyama char *driver = NULL; 82046d4c572STomoki Sekiyama char buf[PATH_MAX]; 82146d4c572STomoki Sekiyama ssize_t len; 82246d4c572STomoki Sekiyama 82346d4c572STomoki Sekiyama path = g_strndup(syspath, pathlen); 82446d4c572STomoki Sekiyama dpath = g_strdup_printf("%s/driver", path); 82546d4c572STomoki Sekiyama len = readlink(dpath, buf, sizeof(buf) - 1); 82646d4c572STomoki Sekiyama if (len != -1) { 82746d4c572STomoki Sekiyama buf[len] = 0; 8283e015d81SJulia Suvorova driver = g_path_get_basename(buf); 82946d4c572STomoki Sekiyama } 83046d4c572STomoki Sekiyama g_free(dpath); 83146d4c572STomoki Sekiyama g_free(path); 83246d4c572STomoki Sekiyama return driver; 83346d4c572STomoki Sekiyama } 83446d4c572STomoki Sekiyama 83546d4c572STomoki Sekiyama static int compare_uint(const void *_a, const void *_b) 83646d4c572STomoki Sekiyama { 83746d4c572STomoki Sekiyama unsigned int a = *(unsigned int *)_a; 83846d4c572STomoki Sekiyama unsigned int b = *(unsigned int *)_b; 83946d4c572STomoki Sekiyama 84046d4c572STomoki Sekiyama return a < b ? -1 : a > b ? 1 : 0; 84146d4c572STomoki Sekiyama } 84246d4c572STomoki Sekiyama 84346d4c572STomoki Sekiyama /* Walk the specified sysfs and build a sorted list of host or ata numbers */ 84446d4c572STomoki Sekiyama static int build_hosts(char const *syspath, char const *host, bool ata, 84546d4c572STomoki Sekiyama unsigned int *hosts, int hosts_max, Error **errp) 84646d4c572STomoki Sekiyama { 84746d4c572STomoki Sekiyama char *path; 84846d4c572STomoki Sekiyama DIR *dir; 84946d4c572STomoki Sekiyama struct dirent *entry; 85046d4c572STomoki Sekiyama int i = 0; 85146d4c572STomoki Sekiyama 85246d4c572STomoki Sekiyama path = g_strndup(syspath, host - syspath); 85346d4c572STomoki Sekiyama dir = opendir(path); 85446d4c572STomoki Sekiyama if (!dir) { 85546d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", path); 85646d4c572STomoki Sekiyama g_free(path); 85746d4c572STomoki Sekiyama return -1; 85846d4c572STomoki Sekiyama } 85946d4c572STomoki Sekiyama 86046d4c572STomoki Sekiyama while (i < hosts_max) { 86146d4c572STomoki Sekiyama entry = readdir(dir); 86246d4c572STomoki Sekiyama if (!entry) { 86346d4c572STomoki Sekiyama break; 86446d4c572STomoki Sekiyama } 86546d4c572STomoki Sekiyama if (ata && sscanf(entry->d_name, "ata%d", hosts + i) == 1) { 86646d4c572STomoki Sekiyama ++i; 86746d4c572STomoki Sekiyama } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) == 1) { 86846d4c572STomoki Sekiyama ++i; 86946d4c572STomoki Sekiyama } 87046d4c572STomoki Sekiyama } 87146d4c572STomoki Sekiyama 87246d4c572STomoki Sekiyama qsort(hosts, i, sizeof(hosts[0]), compare_uint); 87346d4c572STomoki Sekiyama 87446d4c572STomoki Sekiyama g_free(path); 87546d4c572STomoki Sekiyama closedir(dir); 87646d4c572STomoki Sekiyama return i; 87746d4c572STomoki Sekiyama } 87846d4c572STomoki Sekiyama 87946d4c572STomoki Sekiyama /* Store disk device info specified by @sysfs into @fs */ 88046d4c572STomoki Sekiyama static void build_guest_fsinfo_for_real_device(char const *syspath, 88146d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 88246d4c572STomoki Sekiyama Error **errp) 88346d4c572STomoki Sekiyama { 88446d4c572STomoki Sekiyama unsigned int pci[4], host, hosts[8], tgt[3]; 88546d4c572STomoki Sekiyama int i, nhosts = 0, pcilen; 88646d4c572STomoki Sekiyama GuestDiskAddress *disk; 88746d4c572STomoki Sekiyama GuestPCIAddress *pciaddr; 88846d4c572STomoki Sekiyama GuestDiskAddressList *list = NULL; 88946d4c572STomoki Sekiyama bool has_ata = false, has_host = false, has_tgt = false; 89046d4c572STomoki Sekiyama char *p, *q, *driver = NULL; 891b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 892b616105aSTomáš Golembiovský struct udev *udev = NULL; 893b616105aSTomáš Golembiovský struct udev_device *udevice = NULL; 894b616105aSTomáš Golembiovský #endif 89546d4c572STomoki Sekiyama 89646d4c572STomoki Sekiyama p = strstr(syspath, "/devices/pci"); 89746d4c572STomoki Sekiyama if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", 89846d4c572STomoki Sekiyama pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { 899743c71d0SMarc-André Lureau g_debug("only pci device is supported: sysfs path '%s'", syspath); 90046d4c572STomoki Sekiyama return; 90146d4c572STomoki Sekiyama } 90246d4c572STomoki Sekiyama 903743c71d0SMarc-André Lureau p += 12 + pcilen; 904743c71d0SMarc-André Lureau while (true) { 905743c71d0SMarc-André Lureau driver = get_pci_driver(syspath, p - syspath, errp); 906743c71d0SMarc-André Lureau if (driver && (g_str_equal(driver, "ata_piix") || 907743c71d0SMarc-André Lureau g_str_equal(driver, "sym53c8xx") || 908743c71d0SMarc-André Lureau g_str_equal(driver, "virtio-pci") || 909743c71d0SMarc-André Lureau g_str_equal(driver, "ahci"))) { 910743c71d0SMarc-André Lureau break; 911743c71d0SMarc-André Lureau } 912743c71d0SMarc-André Lureau 913bb23a736SMarc-André Lureau g_free(driver); 914743c71d0SMarc-André Lureau if (sscanf(p, "/%x:%x:%x.%x%n", 915743c71d0SMarc-André Lureau pci, pci + 1, pci + 2, pci + 3, &pcilen) == 4) { 916743c71d0SMarc-André Lureau p += pcilen; 917743c71d0SMarc-André Lureau continue; 918743c71d0SMarc-André Lureau } 919743c71d0SMarc-André Lureau 920743c71d0SMarc-André Lureau g_debug("unsupported driver or sysfs path '%s'", syspath); 921743c71d0SMarc-André Lureau return; 92246d4c572STomoki Sekiyama } 92346d4c572STomoki Sekiyama 92446d4c572STomoki Sekiyama p = strstr(syspath, "/target"); 92546d4c572STomoki Sekiyama if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 92646d4c572STomoki Sekiyama tgt, tgt + 1, tgt + 2) == 3) { 92746d4c572STomoki Sekiyama has_tgt = true; 92846d4c572STomoki Sekiyama } 92946d4c572STomoki Sekiyama 93046d4c572STomoki Sekiyama p = strstr(syspath, "/ata"); 93146d4c572STomoki Sekiyama if (p) { 93246d4c572STomoki Sekiyama q = p + 4; 93346d4c572STomoki Sekiyama has_ata = true; 93446d4c572STomoki Sekiyama } else { 93546d4c572STomoki Sekiyama p = strstr(syspath, "/host"); 93646d4c572STomoki Sekiyama q = p + 5; 93746d4c572STomoki Sekiyama } 93846d4c572STomoki Sekiyama if (p && sscanf(q, "%u", &host) == 1) { 93946d4c572STomoki Sekiyama has_host = true; 94046d4c572STomoki Sekiyama nhosts = build_hosts(syspath, p, has_ata, hosts, 94101a6df1bSPhilippe Mathieu-Daudé ARRAY_SIZE(hosts), errp); 94246d4c572STomoki Sekiyama if (nhosts < 0) { 94346d4c572STomoki Sekiyama goto cleanup; 94446d4c572STomoki Sekiyama } 94546d4c572STomoki Sekiyama } 94646d4c572STomoki Sekiyama 94746d4c572STomoki Sekiyama pciaddr = g_malloc0(sizeof(*pciaddr)); 94846d4c572STomoki Sekiyama pciaddr->domain = pci[0]; 94946d4c572STomoki Sekiyama pciaddr->bus = pci[1]; 95046d4c572STomoki Sekiyama pciaddr->slot = pci[2]; 95146d4c572STomoki Sekiyama pciaddr->function = pci[3]; 95246d4c572STomoki Sekiyama 95346d4c572STomoki Sekiyama disk = g_malloc0(sizeof(*disk)); 95446d4c572STomoki Sekiyama disk->pci_controller = pciaddr; 95546d4c572STomoki Sekiyama 95646d4c572STomoki Sekiyama list = g_malloc0(sizeof(*list)); 95746d4c572STomoki Sekiyama list->value = disk; 95846d4c572STomoki Sekiyama 959b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 960b616105aSTomáš Golembiovský udev = udev_new(); 961b616105aSTomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 962b616105aSTomáš Golembiovský if (udev == NULL || udevice == NULL) { 963b616105aSTomáš Golembiovský g_debug("failed to query udev"); 964b616105aSTomáš Golembiovský } else { 9656589ce35STomáš Golembiovský const char *devnode, *serial; 9666589ce35STomáš Golembiovský devnode = udev_device_get_devnode(udevice); 9676589ce35STomáš Golembiovský if (devnode != NULL) { 9686589ce35STomáš Golembiovský disk->dev = g_strdup(devnode); 9696589ce35STomáš Golembiovský disk->has_dev = true; 9706589ce35STomáš Golembiovský } 971b616105aSTomáš Golembiovský serial = udev_device_get_property_value(udevice, "ID_SERIAL"); 972b616105aSTomáš Golembiovský if (serial != NULL && *serial != 0) { 973b616105aSTomáš Golembiovský disk->serial = g_strdup(serial); 974b616105aSTomáš Golembiovský disk->has_serial = true; 975b616105aSTomáš Golembiovský } 976b616105aSTomáš Golembiovský } 977b616105aSTomáš Golembiovský #endif 978b616105aSTomáš Golembiovský 97946d4c572STomoki Sekiyama if (strcmp(driver, "ata_piix") == 0) { 98046d4c572STomoki Sekiyama /* a host per ide bus, target*:0:<unit>:0 */ 98146d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 98246d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 98346d4c572STomoki Sekiyama goto cleanup; 98446d4c572STomoki Sekiyama } 98546d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 98646d4c572STomoki Sekiyama if (host == hosts[i]) { 98746d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_IDE; 98846d4c572STomoki Sekiyama disk->bus = i; 98946d4c572STomoki Sekiyama disk->unit = tgt[1]; 99046d4c572STomoki Sekiyama break; 99146d4c572STomoki Sekiyama } 99246d4c572STomoki Sekiyama } 99346d4c572STomoki Sekiyama if (i >= nhosts) { 99446d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 99546d4c572STomoki Sekiyama goto cleanup; 99646d4c572STomoki Sekiyama } 99746d4c572STomoki Sekiyama } else if (strcmp(driver, "sym53c8xx") == 0) { 99846d4c572STomoki Sekiyama /* scsi(LSI Logic): target*:0:<unit>:0 */ 99946d4c572STomoki Sekiyama if (!has_tgt) { 100046d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 100146d4c572STomoki Sekiyama goto cleanup; 100246d4c572STomoki Sekiyama } 100346d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 100446d4c572STomoki Sekiyama disk->unit = tgt[1]; 100546d4c572STomoki Sekiyama } else if (strcmp(driver, "virtio-pci") == 0) { 100646d4c572STomoki Sekiyama if (has_tgt) { 100746d4c572STomoki Sekiyama /* virtio-scsi: target*:0:0:<unit> */ 100846d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 100946d4c572STomoki Sekiyama disk->unit = tgt[2]; 101046d4c572STomoki Sekiyama } else { 101146d4c572STomoki Sekiyama /* virtio-blk: 1 disk per 1 device */ 101246d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 101346d4c572STomoki Sekiyama } 101446d4c572STomoki Sekiyama } else if (strcmp(driver, "ahci") == 0) { 101546d4c572STomoki Sekiyama /* ahci: 1 host per 1 unit */ 101646d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 101746d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 101846d4c572STomoki Sekiyama goto cleanup; 101946d4c572STomoki Sekiyama } 102046d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 102146d4c572STomoki Sekiyama if (host == hosts[i]) { 102246d4c572STomoki Sekiyama disk->unit = i; 102346d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SATA; 102446d4c572STomoki Sekiyama break; 102546d4c572STomoki Sekiyama } 102646d4c572STomoki Sekiyama } 102746d4c572STomoki Sekiyama if (i >= nhosts) { 102846d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 102946d4c572STomoki Sekiyama goto cleanup; 103046d4c572STomoki Sekiyama } 103146d4c572STomoki Sekiyama } else { 103246d4c572STomoki Sekiyama g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); 103346d4c572STomoki Sekiyama goto cleanup; 103446d4c572STomoki Sekiyama } 103546d4c572STomoki Sekiyama 103646d4c572STomoki Sekiyama list->next = fs->disk; 103746d4c572STomoki Sekiyama fs->disk = list; 1038b616105aSTomáš Golembiovský goto out; 103946d4c572STomoki Sekiyama 104046d4c572STomoki Sekiyama cleanup: 104146d4c572STomoki Sekiyama if (list) { 104246d4c572STomoki Sekiyama qapi_free_GuestDiskAddressList(list); 104346d4c572STomoki Sekiyama } 1044b616105aSTomáš Golembiovský out: 104546d4c572STomoki Sekiyama g_free(driver); 1046b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 1047b616105aSTomáš Golembiovský udev_unref(udev); 1048b616105aSTomáš Golembiovský udev_device_unref(udevice); 1049b616105aSTomáš Golembiovský #endif 1050b616105aSTomáš Golembiovský return; 105146d4c572STomoki Sekiyama } 105246d4c572STomoki Sekiyama 105346d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 105446d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 105546d4c572STomoki Sekiyama Error **errp); 105646d4c572STomoki Sekiyama 105746d4c572STomoki Sekiyama /* Store a list of slave devices of virtual volume specified by @syspath into 105846d4c572STomoki Sekiyama * @fs */ 105946d4c572STomoki Sekiyama static void build_guest_fsinfo_for_virtual_device(char const *syspath, 106046d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 106146d4c572STomoki Sekiyama Error **errp) 106246d4c572STomoki Sekiyama { 1063*292743d9SMarkus Armbruster Error *err = NULL; 106446d4c572STomoki Sekiyama DIR *dir; 106546d4c572STomoki Sekiyama char *dirpath; 1066e668d1b8Szhanghailiang struct dirent *entry; 106746d4c572STomoki Sekiyama 106846d4c572STomoki Sekiyama dirpath = g_strdup_printf("%s/slaves", syspath); 106946d4c572STomoki Sekiyama dir = opendir(dirpath); 107046d4c572STomoki Sekiyama if (!dir) { 10718251a72fSMichael Roth if (errno != ENOENT) { 107246d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); 10738251a72fSMichael Roth } 107446d4c572STomoki Sekiyama g_free(dirpath); 107546d4c572STomoki Sekiyama return; 107646d4c572STomoki Sekiyama } 107746d4c572STomoki Sekiyama 107846d4c572STomoki Sekiyama for (;;) { 1079e668d1b8Szhanghailiang errno = 0; 1080e668d1b8Szhanghailiang entry = readdir(dir); 1081e668d1b8Szhanghailiang if (entry == NULL) { 1082e668d1b8Szhanghailiang if (errno) { 1083e668d1b8Szhanghailiang error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); 108446d4c572STomoki Sekiyama } 108546d4c572STomoki Sekiyama break; 108646d4c572STomoki Sekiyama } 108746d4c572STomoki Sekiyama 1088e668d1b8Szhanghailiang if (entry->d_type == DT_LNK) { 1089e668d1b8Szhanghailiang char *path; 1090e668d1b8Szhanghailiang 1091e668d1b8Szhanghailiang g_debug(" slave device '%s'", entry->d_name); 1092e668d1b8Szhanghailiang path = g_strdup_printf("%s/slaves/%s", syspath, entry->d_name); 1093*292743d9SMarkus Armbruster build_guest_fsinfo_for_device(path, fs, &err); 1094e668d1b8Szhanghailiang g_free(path); 109546d4c572STomoki Sekiyama 1096*292743d9SMarkus Armbruster if (err) { 1097*292743d9SMarkus Armbruster error_propagate(errp, err); 109846d4c572STomoki Sekiyama break; 109946d4c572STomoki Sekiyama } 110046d4c572STomoki Sekiyama } 110146d4c572STomoki Sekiyama } 110246d4c572STomoki Sekiyama 1103e668d1b8Szhanghailiang g_free(dirpath); 110446d4c572STomoki Sekiyama closedir(dir); 110546d4c572STomoki Sekiyama } 110646d4c572STomoki Sekiyama 110746d4c572STomoki Sekiyama /* Dispatch to functions for virtual/real device */ 110846d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 110946d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 111046d4c572STomoki Sekiyama Error **errp) 111146d4c572STomoki Sekiyama { 111246d4c572STomoki Sekiyama char *syspath = realpath(devpath, NULL); 111346d4c572STomoki Sekiyama 111446d4c572STomoki Sekiyama if (!syspath) { 111546d4c572STomoki Sekiyama error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 111646d4c572STomoki Sekiyama return; 111746d4c572STomoki Sekiyama } 111846d4c572STomoki Sekiyama 111946d4c572STomoki Sekiyama if (!fs->name) { 11203e015d81SJulia Suvorova fs->name = g_path_get_basename(syspath); 112146d4c572STomoki Sekiyama } 112246d4c572STomoki Sekiyama 112346d4c572STomoki Sekiyama g_debug(" parse sysfs path '%s'", syspath); 112446d4c572STomoki Sekiyama 112546d4c572STomoki Sekiyama if (strstr(syspath, "/devices/virtual/block/")) { 112646d4c572STomoki Sekiyama build_guest_fsinfo_for_virtual_device(syspath, fs, errp); 112746d4c572STomoki Sekiyama } else { 112846d4c572STomoki Sekiyama build_guest_fsinfo_for_real_device(syspath, fs, errp); 112946d4c572STomoki Sekiyama } 113046d4c572STomoki Sekiyama 113146d4c572STomoki Sekiyama free(syspath); 113246d4c572STomoki Sekiyama } 113346d4c572STomoki Sekiyama 113446d4c572STomoki Sekiyama /* Return a list of the disk device(s)' info which @mount lies on */ 113546d4c572STomoki Sekiyama static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, 113646d4c572STomoki Sekiyama Error **errp) 113746d4c572STomoki Sekiyama { 113846d4c572STomoki Sekiyama GuestFilesystemInfo *fs = g_malloc0(sizeof(*fs)); 113925b5ff1aSChen Hanxiao struct statvfs buf; 114025b5ff1aSChen Hanxiao unsigned long used, nonroot_total, fr_size; 114146d4c572STomoki Sekiyama char *devpath = g_strdup_printf("/sys/dev/block/%u:%u", 114246d4c572STomoki Sekiyama mount->devmajor, mount->devminor); 114346d4c572STomoki Sekiyama 114446d4c572STomoki Sekiyama fs->mountpoint = g_strdup(mount->dirname); 114546d4c572STomoki Sekiyama fs->type = g_strdup(mount->devtype); 114646d4c572STomoki Sekiyama build_guest_fsinfo_for_device(devpath, fs, errp); 114746d4c572STomoki Sekiyama 114825b5ff1aSChen Hanxiao if (statvfs(fs->mountpoint, &buf) == 0) { 114925b5ff1aSChen Hanxiao fr_size = buf.f_frsize; 115025b5ff1aSChen Hanxiao used = buf.f_blocks - buf.f_bfree; 115125b5ff1aSChen Hanxiao nonroot_total = used + buf.f_bavail; 115225b5ff1aSChen Hanxiao fs->used_bytes = used * fr_size; 115325b5ff1aSChen Hanxiao fs->total_bytes = nonroot_total * fr_size; 115425b5ff1aSChen Hanxiao 115525b5ff1aSChen Hanxiao fs->has_total_bytes = true; 115625b5ff1aSChen Hanxiao fs->has_used_bytes = true; 115725b5ff1aSChen Hanxiao } 115825b5ff1aSChen Hanxiao 115946d4c572STomoki Sekiyama g_free(devpath); 116025b5ff1aSChen Hanxiao 116146d4c572STomoki Sekiyama return fs; 116246d4c572STomoki Sekiyama } 116346d4c572STomoki Sekiyama 116446d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 116546d4c572STomoki Sekiyama { 116646d4c572STomoki Sekiyama FsMountList mounts; 116746d4c572STomoki Sekiyama struct FsMount *mount; 116846d4c572STomoki Sekiyama GuestFilesystemInfoList *new, *ret = NULL; 116946d4c572STomoki Sekiyama Error *local_err = NULL; 117046d4c572STomoki Sekiyama 117146d4c572STomoki Sekiyama QTAILQ_INIT(&mounts); 117246d4c572STomoki Sekiyama build_fs_mount_list(&mounts, &local_err); 117346d4c572STomoki Sekiyama if (local_err) { 117446d4c572STomoki Sekiyama error_propagate(errp, local_err); 117546d4c572STomoki Sekiyama return NULL; 117646d4c572STomoki Sekiyama } 117746d4c572STomoki Sekiyama 117846d4c572STomoki Sekiyama QTAILQ_FOREACH(mount, &mounts, next) { 117946d4c572STomoki Sekiyama g_debug("Building guest fsinfo for '%s'", mount->dirname); 118046d4c572STomoki Sekiyama 118146d4c572STomoki Sekiyama new = g_malloc0(sizeof(*ret)); 118246d4c572STomoki Sekiyama new->value = build_guest_fsinfo(mount, &local_err); 118346d4c572STomoki Sekiyama new->next = ret; 118446d4c572STomoki Sekiyama ret = new; 118546d4c572STomoki Sekiyama if (local_err) { 118646d4c572STomoki Sekiyama error_propagate(errp, local_err); 118746d4c572STomoki Sekiyama qapi_free_GuestFilesystemInfoList(ret); 118846d4c572STomoki Sekiyama ret = NULL; 118946d4c572STomoki Sekiyama break; 119046d4c572STomoki Sekiyama } 119146d4c572STomoki Sekiyama } 119246d4c572STomoki Sekiyama 119346d4c572STomoki Sekiyama free_fs_mount_list(&mounts); 119446d4c572STomoki Sekiyama return ret; 119546d4c572STomoki Sekiyama } 119646d4c572STomoki Sekiyama 119746d4c572STomoki Sekiyama 1198ec0f694cSTomoki Sekiyama typedef enum { 1199ec0f694cSTomoki Sekiyama FSFREEZE_HOOK_THAW = 0, 1200ec0f694cSTomoki Sekiyama FSFREEZE_HOOK_FREEZE, 1201ec0f694cSTomoki Sekiyama } FsfreezeHookArg; 1202ec0f694cSTomoki Sekiyama 120313a439ecSStefan Weil static const char *fsfreeze_hook_arg_string[] = { 1204ec0f694cSTomoki Sekiyama "thaw", 1205ec0f694cSTomoki Sekiyama "freeze", 1206ec0f694cSTomoki Sekiyama }; 1207ec0f694cSTomoki Sekiyama 120877dbc81bSMarkus Armbruster static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp) 1209ec0f694cSTomoki Sekiyama { 1210ec0f694cSTomoki Sekiyama int status; 1211ec0f694cSTomoki Sekiyama pid_t pid; 1212ec0f694cSTomoki Sekiyama const char *hook; 1213ec0f694cSTomoki Sekiyama const char *arg_str = fsfreeze_hook_arg_string[arg]; 1214ec0f694cSTomoki Sekiyama Error *local_err = NULL; 1215ec0f694cSTomoki Sekiyama 1216ec0f694cSTomoki Sekiyama hook = ga_fsfreeze_hook(ga_state); 1217ec0f694cSTomoki Sekiyama if (!hook) { 1218ec0f694cSTomoki Sekiyama return; 1219ec0f694cSTomoki Sekiyama } 1220ec0f694cSTomoki Sekiyama if (access(hook, X_OK) != 0) { 122177dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "can't access fsfreeze hook '%s'", hook); 1222ec0f694cSTomoki Sekiyama return; 1223ec0f694cSTomoki Sekiyama } 1224ec0f694cSTomoki Sekiyama 1225ec0f694cSTomoki Sekiyama slog("executing fsfreeze hook with arg '%s'", arg_str); 1226ec0f694cSTomoki Sekiyama pid = fork(); 1227ec0f694cSTomoki Sekiyama if (pid == 0) { 1228ec0f694cSTomoki Sekiyama setsid(); 1229ec0f694cSTomoki Sekiyama reopen_fd_to_null(0); 1230ec0f694cSTomoki Sekiyama reopen_fd_to_null(1); 1231ec0f694cSTomoki Sekiyama reopen_fd_to_null(2); 1232ec0f694cSTomoki Sekiyama 1233ec0f694cSTomoki Sekiyama execle(hook, hook, arg_str, NULL, environ); 1234ec0f694cSTomoki Sekiyama _exit(EXIT_FAILURE); 1235ec0f694cSTomoki Sekiyama } else if (pid < 0) { 123677dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 1237ec0f694cSTomoki Sekiyama return; 1238ec0f694cSTomoki Sekiyama } 1239ec0f694cSTomoki Sekiyama 1240ec0f694cSTomoki Sekiyama ga_wait_child(pid, &status, &local_err); 124184d18f06SMarkus Armbruster if (local_err) { 124277dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1243ec0f694cSTomoki Sekiyama return; 1244ec0f694cSTomoki Sekiyama } 1245ec0f694cSTomoki Sekiyama 1246ec0f694cSTomoki Sekiyama if (!WIFEXITED(status)) { 124777dbc81bSMarkus Armbruster error_setg(errp, "fsfreeze hook has terminated abnormally"); 1248ec0f694cSTomoki Sekiyama return; 1249ec0f694cSTomoki Sekiyama } 1250ec0f694cSTomoki Sekiyama 1251ec0f694cSTomoki Sekiyama status = WEXITSTATUS(status); 1252ec0f694cSTomoki Sekiyama if (status) { 125377dbc81bSMarkus Armbruster error_setg(errp, "fsfreeze hook has failed with status %d", status); 1254ec0f694cSTomoki Sekiyama return; 1255ec0f694cSTomoki Sekiyama } 1256ec0f694cSTomoki Sekiyama } 1257ec0f694cSTomoki Sekiyama 1258c216e5adSMichael Roth /* 1259c216e5adSMichael Roth * Return status of freeze/thaw 1260c216e5adSMichael Roth */ 126177dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1262c216e5adSMichael Roth { 1263f22d85e9SMichael Roth if (ga_is_frozen(ga_state)) { 1264f22d85e9SMichael Roth return GUEST_FSFREEZE_STATUS_FROZEN; 1265f22d85e9SMichael Roth } 1266f22d85e9SMichael Roth 1267f22d85e9SMichael Roth return GUEST_FSFREEZE_STATUS_THAWED; 1268c216e5adSMichael Roth } 1269c216e5adSMichael Roth 1270e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1271e99bce20STomoki Sekiyama { 1272e99bce20STomoki Sekiyama return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1273e99bce20STomoki Sekiyama } 1274e99bce20STomoki Sekiyama 1275c216e5adSMichael Roth /* 1276c216e5adSMichael Roth * Walk list of mounted file systems in the guest, and freeze the ones which 1277c216e5adSMichael Roth * are real local file systems. 1278c216e5adSMichael Roth */ 1279e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1280e99bce20STomoki Sekiyama strList *mountpoints, 1281e99bce20STomoki Sekiyama Error **errp) 1282c216e5adSMichael Roth { 1283c216e5adSMichael Roth int ret = 0, i = 0; 1284e99bce20STomoki Sekiyama strList *list; 1285af02203fSPaolo Bonzini FsMountList mounts; 1286af02203fSPaolo Bonzini struct FsMount *mount; 1287261551d1SLuiz Capitulino Error *local_err = NULL; 1288c216e5adSMichael Roth int fd; 1289c216e5adSMichael Roth 1290c216e5adSMichael Roth slog("guest-fsfreeze called"); 1291c216e5adSMichael Roth 1292ec0f694cSTomoki Sekiyama execute_fsfreeze_hook(FSFREEZE_HOOK_FREEZE, &local_err); 129384d18f06SMarkus Armbruster if (local_err) { 129477dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1295ec0f694cSTomoki Sekiyama return -1; 1296ec0f694cSTomoki Sekiyama } 1297ec0f694cSTomoki Sekiyama 12989e8aded4SMichael Roth QTAILQ_INIT(&mounts); 1299261551d1SLuiz Capitulino build_fs_mount_list(&mounts, &local_err); 130084d18f06SMarkus Armbruster if (local_err) { 130177dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1302261551d1SLuiz Capitulino return -1; 1303c216e5adSMichael Roth } 1304c216e5adSMichael Roth 1305c216e5adSMichael Roth /* cannot risk guest agent blocking itself on a write in this state */ 1306f22d85e9SMichael Roth ga_set_frozen(ga_state); 1307c216e5adSMichael Roth 1308eae3eb3eSPaolo Bonzini QTAILQ_FOREACH_REVERSE(mount, &mounts, next) { 1309e99bce20STomoki Sekiyama /* To issue fsfreeze in the reverse order of mounts, check if the 1310e99bce20STomoki Sekiyama * mount is listed in the list here */ 1311e99bce20STomoki Sekiyama if (has_mountpoints) { 1312e99bce20STomoki Sekiyama for (list = mountpoints; list; list = list->next) { 1313e99bce20STomoki Sekiyama if (strcmp(list->value, mount->dirname) == 0) { 1314e99bce20STomoki Sekiyama break; 1315e99bce20STomoki Sekiyama } 1316e99bce20STomoki Sekiyama } 1317e99bce20STomoki Sekiyama if (!list) { 1318e99bce20STomoki Sekiyama continue; 1319e99bce20STomoki Sekiyama } 1320e99bce20STomoki Sekiyama } 1321e99bce20STomoki Sekiyama 1322c216e5adSMichael Roth fd = qemu_open(mount->dirname, O_RDONLY); 1323c216e5adSMichael Roth if (fd == -1) { 132477dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to open %s", mount->dirname); 1325c216e5adSMichael Roth goto error; 1326c216e5adSMichael Roth } 1327c216e5adSMichael Roth 1328e35916acSMichael Tokarev /* we try to cull filesystems we know won't work in advance, but other 1329e35916acSMichael Tokarev * filesystems may not implement fsfreeze for less obvious reasons. 13309e8aded4SMichael Roth * these will report EOPNOTSUPP. we simply ignore these when tallying 13319e8aded4SMichael Roth * the number of frozen filesystems. 1332ce2eb6c4SPeter Lieven * if a filesystem is mounted more than once (aka bind mount) a 1333ce2eb6c4SPeter Lieven * consecutive attempt to freeze an already frozen filesystem will 1334ce2eb6c4SPeter Lieven * return EBUSY. 13359e8aded4SMichael Roth * 13369e8aded4SMichael Roth * any other error means a failure to freeze a filesystem we 13379e8aded4SMichael Roth * expect to be freezable, so return an error in those cases 13389e8aded4SMichael Roth * and return system to thawed state. 1339c216e5adSMichael Roth */ 1340c216e5adSMichael Roth ret = ioctl(fd, FIFREEZE); 13419e8aded4SMichael Roth if (ret == -1) { 1342ce2eb6c4SPeter Lieven if (errno != EOPNOTSUPP && errno != EBUSY) { 134377dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to freeze %s", 1344617fbbc1SLuiz Capitulino mount->dirname); 1345c216e5adSMichael Roth close(fd); 1346c216e5adSMichael Roth goto error; 1347c216e5adSMichael Roth } 13489e8aded4SMichael Roth } else { 1349c216e5adSMichael Roth i++; 1350c216e5adSMichael Roth } 13519e8aded4SMichael Roth close(fd); 13529e8aded4SMichael Roth } 1353c216e5adSMichael Roth 1354af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 135565650f01SChen Hanxiao /* We may not issue any FIFREEZE here. 135665650f01SChen Hanxiao * Just unset ga_state here and ready for the next call. 135765650f01SChen Hanxiao */ 135865650f01SChen Hanxiao if (i == 0) { 135965650f01SChen Hanxiao ga_unset_frozen(ga_state); 136065650f01SChen Hanxiao } 1361c216e5adSMichael Roth return i; 1362c216e5adSMichael Roth 1363c216e5adSMichael Roth error: 1364af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 1365c216e5adSMichael Roth qmp_guest_fsfreeze_thaw(NULL); 1366c216e5adSMichael Roth return 0; 1367c216e5adSMichael Roth } 1368c216e5adSMichael Roth 1369c216e5adSMichael Roth /* 1370c216e5adSMichael Roth * Walk list of frozen file systems in the guest, and thaw them. 1371c216e5adSMichael Roth */ 137277dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1373c216e5adSMichael Roth { 1374c216e5adSMichael Roth int ret; 1375af02203fSPaolo Bonzini FsMountList mounts; 1376af02203fSPaolo Bonzini FsMount *mount; 13779e8aded4SMichael Roth int fd, i = 0, logged; 1378261551d1SLuiz Capitulino Error *local_err = NULL; 1379c216e5adSMichael Roth 13809e8aded4SMichael Roth QTAILQ_INIT(&mounts); 1381261551d1SLuiz Capitulino build_fs_mount_list(&mounts, &local_err); 138284d18f06SMarkus Armbruster if (local_err) { 138377dbc81bSMarkus Armbruster error_propagate(errp, local_err); 13849e8aded4SMichael Roth return 0; 13859e8aded4SMichael Roth } 13869e8aded4SMichael Roth 13879e8aded4SMichael Roth QTAILQ_FOREACH(mount, &mounts, next) { 13889e8aded4SMichael Roth logged = false; 1389c216e5adSMichael Roth fd = qemu_open(mount->dirname, O_RDONLY); 1390c216e5adSMichael Roth if (fd == -1) { 1391c216e5adSMichael Roth continue; 1392c216e5adSMichael Roth } 13939e8aded4SMichael Roth /* we have no way of knowing whether a filesystem was actually unfrozen 13949e8aded4SMichael Roth * as a result of a successful call to FITHAW, only that if an error 13959e8aded4SMichael Roth * was returned the filesystem was *not* unfrozen by that particular 13969e8aded4SMichael Roth * call. 13979e8aded4SMichael Roth * 1398a31f0531SJim Meyering * since multiple preceding FIFREEZEs require multiple calls to FITHAW 13999e8aded4SMichael Roth * to unfreeze, continuing issuing FITHAW until an error is returned, 14009e8aded4SMichael Roth * in which case either the filesystem is in an unfreezable state, or, 14019e8aded4SMichael Roth * more likely, it was thawed previously (and remains so afterward). 14029e8aded4SMichael Roth * 14039e8aded4SMichael Roth * also, since the most recent successful call is the one that did 14049e8aded4SMichael Roth * the actual unfreeze, we can use this to provide an accurate count 14059e8aded4SMichael Roth * of the number of filesystems unfrozen by guest-fsfreeze-thaw, which 14069e8aded4SMichael Roth * may * be useful for determining whether a filesystem was unfrozen 14079e8aded4SMichael Roth * during the freeze/thaw phase by a process other than qemu-ga. 14089e8aded4SMichael Roth */ 14099e8aded4SMichael Roth do { 1410c216e5adSMichael Roth ret = ioctl(fd, FITHAW); 14119e8aded4SMichael Roth if (ret == 0 && !logged) { 1412c216e5adSMichael Roth i++; 14139e8aded4SMichael Roth logged = true; 14149e8aded4SMichael Roth } 14159e8aded4SMichael Roth } while (ret == 0); 14169e8aded4SMichael Roth close(fd); 1417c216e5adSMichael Roth } 1418c216e5adSMichael Roth 1419f22d85e9SMichael Roth ga_unset_frozen(ga_state); 1420af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 1421ec0f694cSTomoki Sekiyama 142277dbc81bSMarkus Armbruster execute_fsfreeze_hook(FSFREEZE_HOOK_THAW, errp); 1423ec0f694cSTomoki Sekiyama 1424c216e5adSMichael Roth return i; 1425c216e5adSMichael Roth } 1426c216e5adSMichael Roth 1427c216e5adSMichael Roth static void guest_fsfreeze_cleanup(void) 1428c216e5adSMichael Roth { 1429c216e5adSMichael Roth Error *err = NULL; 1430c216e5adSMichael Roth 1431f22d85e9SMichael Roth if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 14326f686749SMarkus Armbruster qmp_guest_fsfreeze_thaw(&err); 14336f686749SMarkus Armbruster if (err) { 14346f686749SMarkus Armbruster slog("failed to clean up frozen filesystems: %s", 14356f686749SMarkus Armbruster error_get_pretty(err)); 14366f686749SMarkus Armbruster error_free(err); 1437c216e5adSMichael Roth } 1438c216e5adSMichael Roth } 1439c216e5adSMichael Roth } 1440e72c3f2eSMichael Roth #endif /* CONFIG_FSFREEZE */ 1441c216e5adSMichael Roth 1442eab5fd59SPaolo Bonzini #if defined(CONFIG_FSTRIM) 1443eab5fd59SPaolo Bonzini /* 1444eab5fd59SPaolo Bonzini * Walk list of mounted file systems in the guest, and trim them. 1445eab5fd59SPaolo Bonzini */ 1446e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 1447e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1448eab5fd59SPaolo Bonzini { 1449e82855d9SJustin Ossevoort GuestFilesystemTrimResponse *response; 1450e82855d9SJustin Ossevoort GuestFilesystemTrimResultList *list; 1451e82855d9SJustin Ossevoort GuestFilesystemTrimResult *result; 1452eab5fd59SPaolo Bonzini int ret = 0; 1453eab5fd59SPaolo Bonzini FsMountList mounts; 1454eab5fd59SPaolo Bonzini struct FsMount *mount; 1455eab5fd59SPaolo Bonzini int fd; 1456261551d1SLuiz Capitulino Error *local_err = NULL; 145773a652a1SJustin Ossevoort struct fstrim_range r; 1458eab5fd59SPaolo Bonzini 1459eab5fd59SPaolo Bonzini slog("guest-fstrim called"); 1460eab5fd59SPaolo Bonzini 1461eab5fd59SPaolo Bonzini QTAILQ_INIT(&mounts); 1462261551d1SLuiz Capitulino build_fs_mount_list(&mounts, &local_err); 146384d18f06SMarkus Armbruster if (local_err) { 146477dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1465e82855d9SJustin Ossevoort return NULL; 1466eab5fd59SPaolo Bonzini } 1467eab5fd59SPaolo Bonzini 1468e82855d9SJustin Ossevoort response = g_malloc0(sizeof(*response)); 1469e82855d9SJustin Ossevoort 1470eab5fd59SPaolo Bonzini QTAILQ_FOREACH(mount, &mounts, next) { 1471e82855d9SJustin Ossevoort result = g_malloc0(sizeof(*result)); 1472e82855d9SJustin Ossevoort result->path = g_strdup(mount->dirname); 1473e82855d9SJustin Ossevoort 1474e82855d9SJustin Ossevoort list = g_malloc0(sizeof(*list)); 1475e82855d9SJustin Ossevoort list->value = result; 1476e82855d9SJustin Ossevoort list->next = response->paths; 1477e82855d9SJustin Ossevoort response->paths = list; 1478e82855d9SJustin Ossevoort 1479eab5fd59SPaolo Bonzini fd = qemu_open(mount->dirname, O_RDONLY); 1480eab5fd59SPaolo Bonzini if (fd == -1) { 1481e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to open: %s", 1482e82855d9SJustin Ossevoort strerror(errno)); 1483e82855d9SJustin Ossevoort result->has_error = true; 1484e82855d9SJustin Ossevoort continue; 1485eab5fd59SPaolo Bonzini } 1486eab5fd59SPaolo Bonzini 1487e35916acSMichael Tokarev /* We try to cull filesystems we know won't work in advance, but other 1488e35916acSMichael Tokarev * filesystems may not implement fstrim for less obvious reasons. 1489e35916acSMichael Tokarev * These will report EOPNOTSUPP; while in some other cases ENOTTY 1490e35916acSMichael Tokarev * will be reported (e.g. CD-ROMs). 1491e82855d9SJustin Ossevoort * Any other error means an unexpected error. 1492eab5fd59SPaolo Bonzini */ 149373a652a1SJustin Ossevoort r.start = 0; 149473a652a1SJustin Ossevoort r.len = -1; 149573a652a1SJustin Ossevoort r.minlen = has_minimum ? minimum : 0; 1496eab5fd59SPaolo Bonzini ret = ioctl(fd, FITRIM, &r); 1497eab5fd59SPaolo Bonzini if (ret == -1) { 1498e82855d9SJustin Ossevoort result->has_error = true; 1499e82855d9SJustin Ossevoort if (errno == ENOTTY || errno == EOPNOTSUPP) { 1500e82855d9SJustin Ossevoort result->error = g_strdup("trim not supported"); 1501e82855d9SJustin Ossevoort } else { 1502e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to trim: %s", 1503e82855d9SJustin Ossevoort strerror(errno)); 1504e82855d9SJustin Ossevoort } 1505eab5fd59SPaolo Bonzini close(fd); 1506e82855d9SJustin Ossevoort continue; 1507eab5fd59SPaolo Bonzini } 1508e82855d9SJustin Ossevoort 1509e82855d9SJustin Ossevoort result->has_minimum = true; 1510e82855d9SJustin Ossevoort result->minimum = r.minlen; 1511e82855d9SJustin Ossevoort result->has_trimmed = true; 1512e82855d9SJustin Ossevoort result->trimmed = r.len; 1513eab5fd59SPaolo Bonzini close(fd); 1514eab5fd59SPaolo Bonzini } 1515eab5fd59SPaolo Bonzini 1516eab5fd59SPaolo Bonzini free_fs_mount_list(&mounts); 1517e82855d9SJustin Ossevoort return response; 1518eab5fd59SPaolo Bonzini } 1519eab5fd59SPaolo Bonzini #endif /* CONFIG_FSTRIM */ 1520eab5fd59SPaolo Bonzini 1521eab5fd59SPaolo Bonzini 152211d0f125SLuiz Capitulino #define LINUX_SYS_STATE_FILE "/sys/power/state" 152311d0f125SLuiz Capitulino #define SUSPEND_SUPPORTED 0 152411d0f125SLuiz Capitulino #define SUSPEND_NOT_SUPPORTED 1 152511d0f125SLuiz Capitulino 15268b020b5eSDaniel Henrique Barboza typedef enum { 15278b020b5eSDaniel Henrique Barboza SUSPEND_MODE_DISK = 0, 15288b020b5eSDaniel Henrique Barboza SUSPEND_MODE_RAM = 1, 15298b020b5eSDaniel Henrique Barboza SUSPEND_MODE_HYBRID = 2, 15308b020b5eSDaniel Henrique Barboza } SuspendMode; 15318b020b5eSDaniel Henrique Barboza 15328b020b5eSDaniel Henrique Barboza /* 15338b020b5eSDaniel Henrique Barboza * Executes a command in a child process using g_spawn_sync, 15348b020b5eSDaniel Henrique Barboza * returning an int >= 0 representing the exit status of the 15358b020b5eSDaniel Henrique Barboza * process. 15368b020b5eSDaniel Henrique Barboza * 15378b020b5eSDaniel Henrique Barboza * If the program wasn't found in path, returns -1. 15388b020b5eSDaniel Henrique Barboza * 15398b020b5eSDaniel Henrique Barboza * If a problem happened when creating the child process, 15408b020b5eSDaniel Henrique Barboza * returns -1 and errp is set. 15418b020b5eSDaniel Henrique Barboza */ 15428b020b5eSDaniel Henrique Barboza static int run_process_child(const char *command[], Error **errp) 15438b020b5eSDaniel Henrique Barboza { 15448b020b5eSDaniel Henrique Barboza int exit_status, spawn_flag; 15458b020b5eSDaniel Henrique Barboza GError *g_err = NULL; 15468b020b5eSDaniel Henrique Barboza bool success; 15478b020b5eSDaniel Henrique Barboza 15488b020b5eSDaniel Henrique Barboza spawn_flag = G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | 15498b020b5eSDaniel Henrique Barboza G_SPAWN_STDERR_TO_DEV_NULL; 15508b020b5eSDaniel Henrique Barboza 15518b020b5eSDaniel Henrique Barboza success = g_spawn_sync(NULL, (char **)command, environ, spawn_flag, 15528b020b5eSDaniel Henrique Barboza NULL, NULL, NULL, NULL, 15538b020b5eSDaniel Henrique Barboza &exit_status, &g_err); 15548b020b5eSDaniel Henrique Barboza 15558b020b5eSDaniel Henrique Barboza if (success) { 15568b020b5eSDaniel Henrique Barboza return WEXITSTATUS(exit_status); 15578b020b5eSDaniel Henrique Barboza } 15588b020b5eSDaniel Henrique Barboza 15598b020b5eSDaniel Henrique Barboza if (g_err && (g_err->code != G_SPAWN_ERROR_NOENT)) { 15608b020b5eSDaniel Henrique Barboza error_setg(errp, "failed to create child process, error '%s'", 15618b020b5eSDaniel Henrique Barboza g_err->message); 15628b020b5eSDaniel Henrique Barboza } 15638b020b5eSDaniel Henrique Barboza 15648b020b5eSDaniel Henrique Barboza g_error_free(g_err); 15658b020b5eSDaniel Henrique Barboza return -1; 15668b020b5eSDaniel Henrique Barboza } 15678b020b5eSDaniel Henrique Barboza 1568067927d6SDaniel Henrique Barboza static bool systemd_supports_mode(SuspendMode mode, Error **errp) 1569067927d6SDaniel Henrique Barboza { 1570067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1571067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"systemd-hibernate", "systemd-suspend", 1572067927d6SDaniel Henrique Barboza "systemd-hybrid-sleep"}; 1573067927d6SDaniel Henrique Barboza const char *cmd[4] = {"systemctl", "status", systemctl_args[mode], NULL}; 1574067927d6SDaniel Henrique Barboza int status; 1575067927d6SDaniel Henrique Barboza 1576067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1577067927d6SDaniel Henrique Barboza 1578067927d6SDaniel Henrique Barboza /* 1579067927d6SDaniel Henrique Barboza * systemctl status uses LSB return codes so we can expect 1580067927d6SDaniel Henrique Barboza * status > 0 and be ok. To assert if the guest has support 1581067927d6SDaniel Henrique Barboza * for the selected suspend mode, status should be < 4. 4 is 1582067927d6SDaniel Henrique Barboza * the code for unknown service status, the return value when 1583067927d6SDaniel Henrique Barboza * the service does not exist. A common value is status = 3 1584067927d6SDaniel Henrique Barboza * (program is not running). 1585067927d6SDaniel Henrique Barboza */ 1586067927d6SDaniel Henrique Barboza if (status > 0 && status < 4) { 1587067927d6SDaniel Henrique Barboza return true; 1588067927d6SDaniel Henrique Barboza } 1589067927d6SDaniel Henrique Barboza 1590067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1591067927d6SDaniel Henrique Barboza return false; 1592067927d6SDaniel Henrique Barboza } 1593067927d6SDaniel Henrique Barboza 1594067927d6SDaniel Henrique Barboza static void systemd_suspend(SuspendMode mode, Error **errp) 1595067927d6SDaniel Henrique Barboza { 1596067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1597067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"hibernate", "suspend", "hybrid-sleep"}; 1598067927d6SDaniel Henrique Barboza const char *cmd[3] = {"systemctl", systemctl_args[mode], NULL}; 1599067927d6SDaniel Henrique Barboza int status; 1600067927d6SDaniel Henrique Barboza 1601067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1602067927d6SDaniel Henrique Barboza 1603067927d6SDaniel Henrique Barboza if (status == 0) { 1604067927d6SDaniel Henrique Barboza return; 1605067927d6SDaniel Henrique Barboza } 1606067927d6SDaniel Henrique Barboza 1607067927d6SDaniel Henrique Barboza if ((status == -1) && !local_err) { 1608067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' was not found", 1609067927d6SDaniel Henrique Barboza systemctl_args[mode]); 1610067927d6SDaniel Henrique Barboza return; 1611067927d6SDaniel Henrique Barboza } 1612067927d6SDaniel Henrique Barboza 1613067927d6SDaniel Henrique Barboza if (local_err) { 1614067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1615067927d6SDaniel Henrique Barboza } else { 1616067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' returned an " 1617067927d6SDaniel Henrique Barboza "unexpected exit status code (%d)", 1618067927d6SDaniel Henrique Barboza systemctl_args[mode], status); 1619067927d6SDaniel Henrique Barboza } 1620067927d6SDaniel Henrique Barboza } 1621067927d6SDaniel Henrique Barboza 16228b020b5eSDaniel Henrique Barboza static bool pmutils_supports_mode(SuspendMode mode, Error **errp) 162311d0f125SLuiz Capitulino { 16246b26e837SLuiz Capitulino Error *local_err = NULL; 16258b020b5eSDaniel Henrique Barboza const char *pmutils_args[3] = {"--hibernate", "--suspend", 16268b020b5eSDaniel Henrique Barboza "--suspend-hybrid"}; 16278b020b5eSDaniel Henrique Barboza const char *cmd[3] = {"pm-is-supported", pmutils_args[mode], NULL}; 1628dc8764f0SLuiz Capitulino int status; 162911d0f125SLuiz Capitulino 16308b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1631304a0fcbSDaniel Henrique Barboza 16328b020b5eSDaniel Henrique Barboza if (status == SUSPEND_SUPPORTED) { 16338b020b5eSDaniel Henrique Barboza return true; 1634304a0fcbSDaniel Henrique Barboza } 1635304a0fcbSDaniel Henrique Barboza 16368b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 16378b020b5eSDaniel Henrique Barboza return false; 1638a5fcf0e3SDaniel Henrique Barboza } 163911d0f125SLuiz Capitulino 164084d18f06SMarkus Armbruster if (local_err) { 164177dbc81bSMarkus Armbruster error_propagate(errp, local_err); 16428b020b5eSDaniel Henrique Barboza } else { 164377dbc81bSMarkus Armbruster error_setg(errp, 16448b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 16458b020b5eSDaniel Henrique Barboza " status code (%d)", "pm-is-supported", status); 1646dc8764f0SLuiz Capitulino } 164711d0f125SLuiz Capitulino 16488b020b5eSDaniel Henrique Barboza return false; 1649a5fcf0e3SDaniel Henrique Barboza } 1650a5fcf0e3SDaniel Henrique Barboza 16518b020b5eSDaniel Henrique Barboza static void pmutils_suspend(SuspendMode mode, Error **errp) 1652246d76ebSDaniel Henrique Barboza { 1653246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 16548b020b5eSDaniel Henrique Barboza const char *pmutils_binaries[3] = {"pm-hibernate", "pm-suspend", 16558b020b5eSDaniel Henrique Barboza "pm-suspend-hybrid"}; 16568b020b5eSDaniel Henrique Barboza const char *cmd[2] = {pmutils_binaries[mode], NULL}; 1657246d76ebSDaniel Henrique Barboza int status; 1658246d76ebSDaniel Henrique Barboza 16598b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1660246d76ebSDaniel Henrique Barboza 16618b020b5eSDaniel Henrique Barboza if (status == 0) { 1662246d76ebSDaniel Henrique Barboza return; 1663246d76ebSDaniel Henrique Barboza } 1664246d76ebSDaniel Henrique Barboza 16658b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 16668b020b5eSDaniel Henrique Barboza error_setg(errp, "the helper program '%s' was not found", 16678b020b5eSDaniel Henrique Barboza pmutils_binaries[mode]); 1668246d76ebSDaniel Henrique Barboza return; 1669246d76ebSDaniel Henrique Barboza } 1670246d76ebSDaniel Henrique Barboza 1671246d76ebSDaniel Henrique Barboza if (local_err) { 1672246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 16738b020b5eSDaniel Henrique Barboza } else { 1674246d76ebSDaniel Henrique Barboza error_setg(errp, 16758b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 16768b020b5eSDaniel Henrique Barboza " status code (%d)", pmutils_binaries[mode], status); 16778b020b5eSDaniel Henrique Barboza } 1678246d76ebSDaniel Henrique Barboza } 1679246d76ebSDaniel Henrique Barboza 16808b020b5eSDaniel Henrique Barboza static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) 1681a5fcf0e3SDaniel Henrique Barboza { 16828b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 16838b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1684a5fcf0e3SDaniel Henrique Barboza char buf[32]; /* hopefully big enough */ 1685a5fcf0e3SDaniel Henrique Barboza int fd; 1686a5fcf0e3SDaniel Henrique Barboza ssize_t ret; 1687a5fcf0e3SDaniel Henrique Barboza 16888b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 16898b020b5eSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1690a5fcf0e3SDaniel Henrique Barboza return false; 1691a5fcf0e3SDaniel Henrique Barboza } 1692a5fcf0e3SDaniel Henrique Barboza 1693a5fcf0e3SDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_RDONLY); 1694a5fcf0e3SDaniel Henrique Barboza if (fd < 0) { 1695a5fcf0e3SDaniel Henrique Barboza return false; 1696a5fcf0e3SDaniel Henrique Barboza } 1697a5fcf0e3SDaniel Henrique Barboza 1698a5fcf0e3SDaniel Henrique Barboza ret = read(fd, buf, sizeof(buf) - 1); 1699d9c745c1SPaolo Bonzini close(fd); 1700a5fcf0e3SDaniel Henrique Barboza if (ret <= 0) { 1701a5fcf0e3SDaniel Henrique Barboza return false; 1702a5fcf0e3SDaniel Henrique Barboza } 1703a5fcf0e3SDaniel Henrique Barboza buf[ret] = '\0'; 1704a5fcf0e3SDaniel Henrique Barboza 1705a5fcf0e3SDaniel Henrique Barboza if (strstr(buf, sysfile_str)) { 1706a5fcf0e3SDaniel Henrique Barboza return true; 1707a5fcf0e3SDaniel Henrique Barboza } 1708a5fcf0e3SDaniel Henrique Barboza return false; 1709a5fcf0e3SDaniel Henrique Barboza } 1710a5fcf0e3SDaniel Henrique Barboza 17118b020b5eSDaniel Henrique Barboza static void linux_sys_state_suspend(SuspendMode mode, Error **errp) 1712246d76ebSDaniel Henrique Barboza { 1713246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 17148b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 17158b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1716246d76ebSDaniel Henrique Barboza pid_t pid; 1717246d76ebSDaniel Henrique Barboza int status; 1718246d76ebSDaniel Henrique Barboza 17198b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 1720246d76ebSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1721246d76ebSDaniel Henrique Barboza return; 1722246d76ebSDaniel Henrique Barboza } 1723246d76ebSDaniel Henrique Barboza 1724246d76ebSDaniel Henrique Barboza pid = fork(); 1725246d76ebSDaniel Henrique Barboza if (!pid) { 1726246d76ebSDaniel Henrique Barboza /* child */ 1727246d76ebSDaniel Henrique Barboza int fd; 1728246d76ebSDaniel Henrique Barboza 1729246d76ebSDaniel Henrique Barboza setsid(); 1730246d76ebSDaniel Henrique Barboza reopen_fd_to_null(0); 1731246d76ebSDaniel Henrique Barboza reopen_fd_to_null(1); 1732246d76ebSDaniel Henrique Barboza reopen_fd_to_null(2); 1733246d76ebSDaniel Henrique Barboza 1734246d76ebSDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_WRONLY); 1735246d76ebSDaniel Henrique Barboza if (fd < 0) { 1736246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1737246d76ebSDaniel Henrique Barboza } 1738246d76ebSDaniel Henrique Barboza 1739246d76ebSDaniel Henrique Barboza if (write(fd, sysfile_str, strlen(sysfile_str)) < 0) { 1740246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1741246d76ebSDaniel Henrique Barboza } 1742246d76ebSDaniel Henrique Barboza 1743246d76ebSDaniel Henrique Barboza _exit(EXIT_SUCCESS); 1744246d76ebSDaniel Henrique Barboza } else if (pid < 0) { 1745246d76ebSDaniel Henrique Barboza error_setg_errno(errp, errno, "failed to create child process"); 1746246d76ebSDaniel Henrique Barboza return; 1747246d76ebSDaniel Henrique Barboza } 1748246d76ebSDaniel Henrique Barboza 1749246d76ebSDaniel Henrique Barboza ga_wait_child(pid, &status, &local_err); 1750246d76ebSDaniel Henrique Barboza if (local_err) { 1751246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 1752246d76ebSDaniel Henrique Barboza return; 1753246d76ebSDaniel Henrique Barboza } 1754246d76ebSDaniel Henrique Barboza 1755246d76ebSDaniel Henrique Barboza if (WEXITSTATUS(status)) { 1756246d76ebSDaniel Henrique Barboza error_setg(errp, "child process has failed to suspend"); 1757246d76ebSDaniel Henrique Barboza } 1758246d76ebSDaniel Henrique Barboza 1759246d76ebSDaniel Henrique Barboza } 1760246d76ebSDaniel Henrique Barboza 17618b020b5eSDaniel Henrique Barboza static void guest_suspend(SuspendMode mode, Error **errp) 176211d0f125SLuiz Capitulino { 17637b376087SLuiz Capitulino Error *local_err = NULL; 176473e1d8ebSDaniel Henrique Barboza bool mode_supported = false; 176511d0f125SLuiz Capitulino 176673e1d8ebSDaniel Henrique Barboza if (systemd_supports_mode(mode, &local_err)) { 176773e1d8ebSDaniel Henrique Barboza mode_supported = true; 1768067927d6SDaniel Henrique Barboza systemd_suspend(mode, &local_err); 176973e1d8ebSDaniel Henrique Barboza } 177073e1d8ebSDaniel Henrique Barboza 1771067927d6SDaniel Henrique Barboza if (!local_err) { 1772067927d6SDaniel Henrique Barboza return; 1773067927d6SDaniel Henrique Barboza } 1774067927d6SDaniel Henrique Barboza 1775067927d6SDaniel Henrique Barboza error_free(local_err); 1776067927d6SDaniel Henrique Barboza 177773e1d8ebSDaniel Henrique Barboza if (pmutils_supports_mode(mode, &local_err)) { 177873e1d8ebSDaniel Henrique Barboza mode_supported = true; 17798b020b5eSDaniel Henrique Barboza pmutils_suspend(mode, &local_err); 178073e1d8ebSDaniel Henrique Barboza } 178173e1d8ebSDaniel Henrique Barboza 1782246d76ebSDaniel Henrique Barboza if (!local_err) { 1783304a0fcbSDaniel Henrique Barboza return; 1784304a0fcbSDaniel Henrique Barboza } 1785304a0fcbSDaniel Henrique Barboza 1786246d76ebSDaniel Henrique Barboza error_free(local_err); 178711d0f125SLuiz Capitulino 178873e1d8ebSDaniel Henrique Barboza if (linux_sys_state_supports_mode(mode, &local_err)) { 178973e1d8ebSDaniel Henrique Barboza mode_supported = true; 17908b020b5eSDaniel Henrique Barboza linux_sys_state_suspend(mode, &local_err); 179173e1d8ebSDaniel Henrique Barboza } 179273e1d8ebSDaniel Henrique Barboza 179373e1d8ebSDaniel Henrique Barboza if (!mode_supported) { 179473e1d8ebSDaniel Henrique Barboza error_setg(errp, 179573e1d8ebSDaniel Henrique Barboza "the requested suspend mode is not supported by the guest"); 1796b2322003SMarkus Armbruster } else { 179777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 17987b376087SLuiz Capitulino } 179911d0f125SLuiz Capitulino } 180011d0f125SLuiz Capitulino 180177dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 180211d0f125SLuiz Capitulino { 1803304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_DISK, errp); 180411d0f125SLuiz Capitulino } 180511d0f125SLuiz Capitulino 180677dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 1807fbf42210SLuiz Capitulino { 1808304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_RAM, errp); 1809fbf42210SLuiz Capitulino } 1810fbf42210SLuiz Capitulino 181177dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 181295f4f404SLuiz Capitulino { 1813304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_HYBRID, errp); 181495f4f404SLuiz Capitulino } 181595f4f404SLuiz Capitulino 18163424fc9fSMichal Privoznik static GuestNetworkInterfaceList * 18173424fc9fSMichal Privoznik guest_find_interface(GuestNetworkInterfaceList *head, 18183424fc9fSMichal Privoznik const char *name) 18193424fc9fSMichal Privoznik { 18203424fc9fSMichal Privoznik for (; head; head = head->next) { 18213424fc9fSMichal Privoznik if (strcmp(head->value->name, name) == 0) { 18223424fc9fSMichal Privoznik break; 18233424fc9fSMichal Privoznik } 18243424fc9fSMichal Privoznik } 18253424fc9fSMichal Privoznik 18263424fc9fSMichal Privoznik return head; 18273424fc9fSMichal Privoznik } 18283424fc9fSMichal Privoznik 182953f9fcb2SZhiPeng Lu static int guest_get_network_stats(const char *name, 183053f9fcb2SZhiPeng Lu GuestNetworkInterfaceStat *stats) 183153f9fcb2SZhiPeng Lu { 183253f9fcb2SZhiPeng Lu int name_len; 183353f9fcb2SZhiPeng Lu char const *devinfo = "/proc/net/dev"; 183453f9fcb2SZhiPeng Lu FILE *fp; 183553f9fcb2SZhiPeng Lu char *line = NULL, *colon; 183653f9fcb2SZhiPeng Lu size_t n = 0; 183753f9fcb2SZhiPeng Lu fp = fopen(devinfo, "r"); 183853f9fcb2SZhiPeng Lu if (!fp) { 183953f9fcb2SZhiPeng Lu return -1; 184053f9fcb2SZhiPeng Lu } 184153f9fcb2SZhiPeng Lu name_len = strlen(name); 184253f9fcb2SZhiPeng Lu while (getline(&line, &n, fp) != -1) { 184353f9fcb2SZhiPeng Lu long long dummy; 184453f9fcb2SZhiPeng Lu long long rx_bytes; 184553f9fcb2SZhiPeng Lu long long rx_packets; 184653f9fcb2SZhiPeng Lu long long rx_errs; 184753f9fcb2SZhiPeng Lu long long rx_dropped; 184853f9fcb2SZhiPeng Lu long long tx_bytes; 184953f9fcb2SZhiPeng Lu long long tx_packets; 185053f9fcb2SZhiPeng Lu long long tx_errs; 185153f9fcb2SZhiPeng Lu long long tx_dropped; 185253f9fcb2SZhiPeng Lu char *trim_line; 185353f9fcb2SZhiPeng Lu trim_line = g_strchug(line); 185453f9fcb2SZhiPeng Lu if (trim_line[0] == '\0') { 185553f9fcb2SZhiPeng Lu continue; 185653f9fcb2SZhiPeng Lu } 185753f9fcb2SZhiPeng Lu colon = strchr(trim_line, ':'); 185853f9fcb2SZhiPeng Lu if (!colon) { 185953f9fcb2SZhiPeng Lu continue; 186053f9fcb2SZhiPeng Lu } 186153f9fcb2SZhiPeng Lu if (colon - name_len == trim_line && 186253f9fcb2SZhiPeng Lu strncmp(trim_line, name, name_len) == 0) { 186353f9fcb2SZhiPeng Lu if (sscanf(colon + 1, 186453f9fcb2SZhiPeng Lu "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld", 186553f9fcb2SZhiPeng Lu &rx_bytes, &rx_packets, &rx_errs, &rx_dropped, 186653f9fcb2SZhiPeng Lu &dummy, &dummy, &dummy, &dummy, 186753f9fcb2SZhiPeng Lu &tx_bytes, &tx_packets, &tx_errs, &tx_dropped, 186853f9fcb2SZhiPeng Lu &dummy, &dummy, &dummy, &dummy) != 16) { 186953f9fcb2SZhiPeng Lu continue; 187053f9fcb2SZhiPeng Lu } 187153f9fcb2SZhiPeng Lu stats->rx_bytes = rx_bytes; 187253f9fcb2SZhiPeng Lu stats->rx_packets = rx_packets; 187353f9fcb2SZhiPeng Lu stats->rx_errs = rx_errs; 187453f9fcb2SZhiPeng Lu stats->rx_dropped = rx_dropped; 187553f9fcb2SZhiPeng Lu stats->tx_bytes = tx_bytes; 187653f9fcb2SZhiPeng Lu stats->tx_packets = tx_packets; 187753f9fcb2SZhiPeng Lu stats->tx_errs = tx_errs; 187853f9fcb2SZhiPeng Lu stats->tx_dropped = tx_dropped; 187953f9fcb2SZhiPeng Lu fclose(fp); 188053f9fcb2SZhiPeng Lu g_free(line); 188153f9fcb2SZhiPeng Lu return 0; 188253f9fcb2SZhiPeng Lu } 188353f9fcb2SZhiPeng Lu } 188453f9fcb2SZhiPeng Lu fclose(fp); 188553f9fcb2SZhiPeng Lu g_free(line); 188653f9fcb2SZhiPeng Lu g_debug("/proc/net/dev: Interface '%s' not found", name); 188753f9fcb2SZhiPeng Lu return -1; 188853f9fcb2SZhiPeng Lu } 188953f9fcb2SZhiPeng Lu 18903424fc9fSMichal Privoznik /* 18913424fc9fSMichal Privoznik * Build information about guest interfaces 18923424fc9fSMichal Privoznik */ 18933424fc9fSMichal Privoznik GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 18943424fc9fSMichal Privoznik { 18953424fc9fSMichal Privoznik GuestNetworkInterfaceList *head = NULL, *cur_item = NULL; 18963424fc9fSMichal Privoznik struct ifaddrs *ifap, *ifa; 18973424fc9fSMichal Privoznik 18983424fc9fSMichal Privoznik if (getifaddrs(&ifap) < 0) { 1899878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "getifaddrs failed"); 19003424fc9fSMichal Privoznik goto error; 19013424fc9fSMichal Privoznik } 19023424fc9fSMichal Privoznik 19033424fc9fSMichal Privoznik for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 19043424fc9fSMichal Privoznik GuestNetworkInterfaceList *info; 19053424fc9fSMichal Privoznik GuestIpAddressList **address_list = NULL, *address_item = NULL; 190653f9fcb2SZhiPeng Lu GuestNetworkInterfaceStat *interface_stat = NULL; 19073424fc9fSMichal Privoznik char addr4[INET_ADDRSTRLEN]; 19083424fc9fSMichal Privoznik char addr6[INET6_ADDRSTRLEN]; 19093424fc9fSMichal Privoznik int sock; 19103424fc9fSMichal Privoznik struct ifreq ifr; 19113424fc9fSMichal Privoznik unsigned char *mac_addr; 19123424fc9fSMichal Privoznik void *p; 19133424fc9fSMichal Privoznik 19143424fc9fSMichal Privoznik g_debug("Processing %s interface", ifa->ifa_name); 19153424fc9fSMichal Privoznik 19163424fc9fSMichal Privoznik info = guest_find_interface(head, ifa->ifa_name); 19173424fc9fSMichal Privoznik 19183424fc9fSMichal Privoznik if (!info) { 19193424fc9fSMichal Privoznik info = g_malloc0(sizeof(*info)); 19203424fc9fSMichal Privoznik info->value = g_malloc0(sizeof(*info->value)); 19213424fc9fSMichal Privoznik info->value->name = g_strdup(ifa->ifa_name); 19223424fc9fSMichal Privoznik 19233424fc9fSMichal Privoznik if (!cur_item) { 19243424fc9fSMichal Privoznik head = cur_item = info; 19253424fc9fSMichal Privoznik } else { 19263424fc9fSMichal Privoznik cur_item->next = info; 19273424fc9fSMichal Privoznik cur_item = info; 19283424fc9fSMichal Privoznik } 19293424fc9fSMichal Privoznik } 19303424fc9fSMichal Privoznik 19313424fc9fSMichal Privoznik if (!info->value->has_hardware_address && 19323424fc9fSMichal Privoznik ifa->ifa_flags & SIOCGIFHWADDR) { 19333424fc9fSMichal Privoznik /* we haven't obtained HW address yet */ 19343424fc9fSMichal Privoznik sock = socket(PF_INET, SOCK_STREAM, 0); 19353424fc9fSMichal Privoznik if (sock == -1) { 1936878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "failed to create socket"); 19373424fc9fSMichal Privoznik goto error; 19383424fc9fSMichal Privoznik } 19393424fc9fSMichal Privoznik 19403424fc9fSMichal Privoznik memset(&ifr, 0, sizeof(ifr)); 19411ab516edSJim Meyering pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->value->name); 19423424fc9fSMichal Privoznik if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) { 1943878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, 1944878a0ae0SLuiz Capitulino "failed to get MAC address of %s", 1945878a0ae0SLuiz Capitulino ifa->ifa_name); 194610a2158fSMarkus Armbruster close(sock); 19473424fc9fSMichal Privoznik goto error; 19483424fc9fSMichal Privoznik } 19493424fc9fSMichal Privoznik 195010a2158fSMarkus Armbruster close(sock); 19513424fc9fSMichal Privoznik mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data; 19523424fc9fSMichal Privoznik 1953e4ada482SStefan Weil info->value->hardware_address = 1954e4ada482SStefan Weil g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 19553424fc9fSMichal Privoznik (int) mac_addr[0], (int) mac_addr[1], 19563424fc9fSMichal Privoznik (int) mac_addr[2], (int) mac_addr[3], 1957e4ada482SStefan Weil (int) mac_addr[4], (int) mac_addr[5]); 19583424fc9fSMichal Privoznik 19593424fc9fSMichal Privoznik info->value->has_hardware_address = true; 19603424fc9fSMichal Privoznik } 19613424fc9fSMichal Privoznik 19623424fc9fSMichal Privoznik if (ifa->ifa_addr && 19633424fc9fSMichal Privoznik ifa->ifa_addr->sa_family == AF_INET) { 19643424fc9fSMichal Privoznik /* interface with IPv4 address */ 19653424fc9fSMichal Privoznik p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; 19663424fc9fSMichal Privoznik if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) { 1967878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "inet_ntop failed"); 19683424fc9fSMichal Privoznik goto error; 19693424fc9fSMichal Privoznik } 19703424fc9fSMichal Privoznik 197110a2158fSMarkus Armbruster address_item = g_malloc0(sizeof(*address_item)); 197210a2158fSMarkus Armbruster address_item->value = g_malloc0(sizeof(*address_item->value)); 19733424fc9fSMichal Privoznik address_item->value->ip_address = g_strdup(addr4); 19743424fc9fSMichal Privoznik address_item->value->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 19753424fc9fSMichal Privoznik 19763424fc9fSMichal Privoznik if (ifa->ifa_netmask) { 19773424fc9fSMichal Privoznik /* Count the number of set bits in netmask. 19783424fc9fSMichal Privoznik * This is safe as '1' and '0' cannot be shuffled in netmask. */ 19793424fc9fSMichal Privoznik p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr; 19803424fc9fSMichal Privoznik address_item->value->prefix = ctpop32(((uint32_t *) p)[0]); 19813424fc9fSMichal Privoznik } 19823424fc9fSMichal Privoznik } else if (ifa->ifa_addr && 19833424fc9fSMichal Privoznik ifa->ifa_addr->sa_family == AF_INET6) { 19843424fc9fSMichal Privoznik /* interface with IPv6 address */ 19853424fc9fSMichal Privoznik p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; 19863424fc9fSMichal Privoznik if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) { 1987878a0ae0SLuiz Capitulino error_setg_errno(errp, errno, "inet_ntop failed"); 19883424fc9fSMichal Privoznik goto error; 19893424fc9fSMichal Privoznik } 19903424fc9fSMichal Privoznik 199110a2158fSMarkus Armbruster address_item = g_malloc0(sizeof(*address_item)); 199210a2158fSMarkus Armbruster address_item->value = g_malloc0(sizeof(*address_item->value)); 19933424fc9fSMichal Privoznik address_item->value->ip_address = g_strdup(addr6); 19943424fc9fSMichal Privoznik address_item->value->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 19953424fc9fSMichal Privoznik 19963424fc9fSMichal Privoznik if (ifa->ifa_netmask) { 19973424fc9fSMichal Privoznik /* Count the number of set bits in netmask. 19983424fc9fSMichal Privoznik * This is safe as '1' and '0' cannot be shuffled in netmask. */ 19993424fc9fSMichal Privoznik p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; 20003424fc9fSMichal Privoznik address_item->value->prefix = 20013424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[0]) + 20023424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[1]) + 20033424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[2]) + 20043424fc9fSMichal Privoznik ctpop32(((uint32_t *) p)[3]); 20053424fc9fSMichal Privoznik } 20063424fc9fSMichal Privoznik } 20073424fc9fSMichal Privoznik 20083424fc9fSMichal Privoznik if (!address_item) { 20093424fc9fSMichal Privoznik continue; 20103424fc9fSMichal Privoznik } 20113424fc9fSMichal Privoznik 20123424fc9fSMichal Privoznik address_list = &info->value->ip_addresses; 20133424fc9fSMichal Privoznik 20143424fc9fSMichal Privoznik while (*address_list && (*address_list)->next) { 20153424fc9fSMichal Privoznik address_list = &(*address_list)->next; 20163424fc9fSMichal Privoznik } 20173424fc9fSMichal Privoznik 20183424fc9fSMichal Privoznik if (!*address_list) { 20193424fc9fSMichal Privoznik *address_list = address_item; 20203424fc9fSMichal Privoznik } else { 20213424fc9fSMichal Privoznik (*address_list)->next = address_item; 20223424fc9fSMichal Privoznik } 20233424fc9fSMichal Privoznik 20243424fc9fSMichal Privoznik info->value->has_ip_addresses = true; 20253424fc9fSMichal Privoznik 202653f9fcb2SZhiPeng Lu if (!info->value->has_statistics) { 202753f9fcb2SZhiPeng Lu interface_stat = g_malloc0(sizeof(*interface_stat)); 202853f9fcb2SZhiPeng Lu if (guest_get_network_stats(info->value->name, 202953f9fcb2SZhiPeng Lu interface_stat) == -1) { 203053f9fcb2SZhiPeng Lu info->value->has_statistics = false; 203153f9fcb2SZhiPeng Lu g_free(interface_stat); 203253f9fcb2SZhiPeng Lu } else { 203353f9fcb2SZhiPeng Lu info->value->statistics = interface_stat; 203453f9fcb2SZhiPeng Lu info->value->has_statistics = true; 203553f9fcb2SZhiPeng Lu } 203653f9fcb2SZhiPeng Lu } 20373424fc9fSMichal Privoznik } 20383424fc9fSMichal Privoznik 20393424fc9fSMichal Privoznik freeifaddrs(ifap); 20403424fc9fSMichal Privoznik return head; 20413424fc9fSMichal Privoznik 20423424fc9fSMichal Privoznik error: 20433424fc9fSMichal Privoznik freeifaddrs(ifap); 20443424fc9fSMichal Privoznik qapi_free_GuestNetworkInterfaceList(head); 20453424fc9fSMichal Privoznik return NULL; 20463424fc9fSMichal Privoznik } 20473424fc9fSMichal Privoznik 204877dbc81bSMarkus Armbruster #define SYSCONF_EXACT(name, errp) sysconf_exact((name), #name, (errp)) 2049d2baff62SLaszlo Ersek 205077dbc81bSMarkus Armbruster static long sysconf_exact(int name, const char *name_str, Error **errp) 2051d2baff62SLaszlo Ersek { 2052d2baff62SLaszlo Ersek long ret; 2053d2baff62SLaszlo Ersek 2054d2baff62SLaszlo Ersek errno = 0; 2055d2baff62SLaszlo Ersek ret = sysconf(name); 2056d2baff62SLaszlo Ersek if (ret == -1) { 2057d2baff62SLaszlo Ersek if (errno == 0) { 205877dbc81bSMarkus Armbruster error_setg(errp, "sysconf(%s): value indefinite", name_str); 2059d2baff62SLaszlo Ersek } else { 206077dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "sysconf(%s)", name_str); 2061d2baff62SLaszlo Ersek } 2062d2baff62SLaszlo Ersek } 2063d2baff62SLaszlo Ersek return ret; 2064d2baff62SLaszlo Ersek } 2065d2baff62SLaszlo Ersek 2066d2baff62SLaszlo Ersek /* Transfer online/offline status between @vcpu and the guest system. 2067d2baff62SLaszlo Ersek * 2068d2baff62SLaszlo Ersek * On input either @errp or *@errp must be NULL. 2069d2baff62SLaszlo Ersek * 2070d2baff62SLaszlo Ersek * In system-to-@vcpu direction, the following @vcpu fields are accessed: 2071d2baff62SLaszlo Ersek * - R: vcpu->logical_id 2072d2baff62SLaszlo Ersek * - W: vcpu->online 2073d2baff62SLaszlo Ersek * - W: vcpu->can_offline 2074d2baff62SLaszlo Ersek * 2075d2baff62SLaszlo Ersek * In @vcpu-to-system direction, the following @vcpu fields are accessed: 2076d2baff62SLaszlo Ersek * - R: vcpu->logical_id 2077d2baff62SLaszlo Ersek * - R: vcpu->online 2078d2baff62SLaszlo Ersek * 2079d2baff62SLaszlo Ersek * Written members remain unmodified on error. 2080d2baff62SLaszlo Ersek */ 2081d2baff62SLaszlo Ersek static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, 2082b4bf912aSIgor Mammedov char *dirpath, Error **errp) 2083d2baff62SLaszlo Ersek { 2084b4bf912aSIgor Mammedov int fd; 2085b4bf912aSIgor Mammedov int res; 2086d2baff62SLaszlo Ersek int dirfd; 2087b4bf912aSIgor Mammedov static const char fn[] = "online"; 2088d2baff62SLaszlo Ersek 2089d2baff62SLaszlo Ersek dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2090d2baff62SLaszlo Ersek if (dirfd == -1) { 2091d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2092b4bf912aSIgor Mammedov return; 2093b4bf912aSIgor Mammedov } 2094d2baff62SLaszlo Ersek 2095d2baff62SLaszlo Ersek fd = openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); 2096d2baff62SLaszlo Ersek if (fd == -1) { 2097d2baff62SLaszlo Ersek if (errno != ENOENT) { 2098d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); 2099d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2100d2baff62SLaszlo Ersek vcpu->online = true; 2101d2baff62SLaszlo Ersek vcpu->can_offline = false; 2102d2baff62SLaszlo Ersek } else if (!vcpu->online) { 2103d2baff62SLaszlo Ersek error_setg(errp, "logical processor #%" PRId64 " can't be " 2104d2baff62SLaszlo Ersek "offlined", vcpu->logical_id); 2105d2baff62SLaszlo Ersek } /* otherwise pretend successful re-onlining */ 2106d2baff62SLaszlo Ersek } else { 2107d2baff62SLaszlo Ersek unsigned char status; 2108d2baff62SLaszlo Ersek 2109d2baff62SLaszlo Ersek res = pread(fd, &status, 1, 0); 2110d2baff62SLaszlo Ersek if (res == -1) { 2111d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); 2112d2baff62SLaszlo Ersek } else if (res == 0) { 2113d2baff62SLaszlo Ersek error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, 2114d2baff62SLaszlo Ersek fn); 2115d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2116d2baff62SLaszlo Ersek vcpu->online = (status != '0'); 2117d2baff62SLaszlo Ersek vcpu->can_offline = true; 2118d2baff62SLaszlo Ersek } else if (vcpu->online != (status != '0')) { 2119d2baff62SLaszlo Ersek status = '0' + vcpu->online; 2120d2baff62SLaszlo Ersek if (pwrite(fd, &status, 1, 0) == -1) { 2121d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, 2122d2baff62SLaszlo Ersek fn); 2123d2baff62SLaszlo Ersek } 2124d2baff62SLaszlo Ersek } /* otherwise pretend successful re-(on|off)-lining */ 2125d2baff62SLaszlo Ersek 2126d2baff62SLaszlo Ersek res = close(fd); 2127d2baff62SLaszlo Ersek g_assert(res == 0); 2128d2baff62SLaszlo Ersek } 2129d2baff62SLaszlo Ersek 2130d2baff62SLaszlo Ersek res = close(dirfd); 2131d2baff62SLaszlo Ersek g_assert(res == 0); 2132d2baff62SLaszlo Ersek } 2133d2baff62SLaszlo Ersek 2134d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2135d2baff62SLaszlo Ersek { 2136d2baff62SLaszlo Ersek int64_t current; 2137d2baff62SLaszlo Ersek GuestLogicalProcessorList *head, **link; 2138d2baff62SLaszlo Ersek long sc_max; 2139d2baff62SLaszlo Ersek Error *local_err = NULL; 2140d2baff62SLaszlo Ersek 2141d2baff62SLaszlo Ersek current = 0; 2142d2baff62SLaszlo Ersek head = NULL; 2143d2baff62SLaszlo Ersek link = &head; 2144d2baff62SLaszlo Ersek sc_max = SYSCONF_EXACT(_SC_NPROCESSORS_CONF, &local_err); 2145d2baff62SLaszlo Ersek 2146d2baff62SLaszlo Ersek while (local_err == NULL && current < sc_max) { 2147d2baff62SLaszlo Ersek GuestLogicalProcessor *vcpu; 2148d2baff62SLaszlo Ersek GuestLogicalProcessorList *entry; 2149b4bf912aSIgor Mammedov int64_t id = current++; 2150b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2151b4bf912aSIgor Mammedov id); 2152d2baff62SLaszlo Ersek 2153b4bf912aSIgor Mammedov if (g_file_test(path, G_FILE_TEST_EXISTS)) { 2154d2baff62SLaszlo Ersek vcpu = g_malloc0(sizeof *vcpu); 2155b4bf912aSIgor Mammedov vcpu->logical_id = id; 2156d2baff62SLaszlo Ersek vcpu->has_can_offline = true; /* lolspeak ftw */ 2157b4bf912aSIgor Mammedov transfer_vcpu(vcpu, true, path, &local_err); 2158d2baff62SLaszlo Ersek entry = g_malloc0(sizeof *entry); 2159d2baff62SLaszlo Ersek entry->value = vcpu; 2160d2baff62SLaszlo Ersek *link = entry; 2161d2baff62SLaszlo Ersek link = &entry->next; 2162d2baff62SLaszlo Ersek } 2163b4bf912aSIgor Mammedov g_free(path); 2164b4bf912aSIgor Mammedov } 2165d2baff62SLaszlo Ersek 2166d2baff62SLaszlo Ersek if (local_err == NULL) { 2167d2baff62SLaszlo Ersek /* there's no guest with zero VCPUs */ 2168d2baff62SLaszlo Ersek g_assert(head != NULL); 2169d2baff62SLaszlo Ersek return head; 2170d2baff62SLaszlo Ersek } 2171d2baff62SLaszlo Ersek 2172d2baff62SLaszlo Ersek qapi_free_GuestLogicalProcessorList(head); 2173d2baff62SLaszlo Ersek error_propagate(errp, local_err); 2174d2baff62SLaszlo Ersek return NULL; 2175d2baff62SLaszlo Ersek } 2176d2baff62SLaszlo Ersek 2177cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2178cbb65fc2SLaszlo Ersek { 2179cbb65fc2SLaszlo Ersek int64_t processed; 2180cbb65fc2SLaszlo Ersek Error *local_err = NULL; 2181cbb65fc2SLaszlo Ersek 2182cbb65fc2SLaszlo Ersek processed = 0; 2183cbb65fc2SLaszlo Ersek while (vcpus != NULL) { 2184b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2185b4bf912aSIgor Mammedov vcpus->value->logical_id); 2186b4bf912aSIgor Mammedov 2187b4bf912aSIgor Mammedov transfer_vcpu(vcpus->value, false, path, &local_err); 2188b4bf912aSIgor Mammedov g_free(path); 2189cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2190cbb65fc2SLaszlo Ersek break; 2191cbb65fc2SLaszlo Ersek } 2192cbb65fc2SLaszlo Ersek ++processed; 2193cbb65fc2SLaszlo Ersek vcpus = vcpus->next; 2194cbb65fc2SLaszlo Ersek } 2195cbb65fc2SLaszlo Ersek 2196cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2197cbb65fc2SLaszlo Ersek if (processed == 0) { 2198cbb65fc2SLaszlo Ersek error_propagate(errp, local_err); 2199cbb65fc2SLaszlo Ersek } else { 2200cbb65fc2SLaszlo Ersek error_free(local_err); 2201cbb65fc2SLaszlo Ersek } 2202cbb65fc2SLaszlo Ersek } 2203cbb65fc2SLaszlo Ersek 2204cbb65fc2SLaszlo Ersek return processed; 2205cbb65fc2SLaszlo Ersek } 2206cbb65fc2SLaszlo Ersek 2207215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2208215a2771SDaniel P. Berrange const char *password, 2209215a2771SDaniel P. Berrange bool crypted, 2210215a2771SDaniel P. Berrange Error **errp) 2211215a2771SDaniel P. Berrange { 2212215a2771SDaniel P. Berrange Error *local_err = NULL; 2213215a2771SDaniel P. Berrange char *passwd_path = NULL; 2214215a2771SDaniel P. Berrange pid_t pid; 2215215a2771SDaniel P. Berrange int status; 2216215a2771SDaniel P. Berrange int datafd[2] = { -1, -1 }; 2217215a2771SDaniel P. Berrange char *rawpasswddata = NULL; 2218215a2771SDaniel P. Berrange size_t rawpasswdlen; 2219215a2771SDaniel P. Berrange char *chpasswddata = NULL; 2220215a2771SDaniel P. Berrange size_t chpasswdlen; 2221215a2771SDaniel P. Berrange 2222920639caSDaniel P. Berrange rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 2223920639caSDaniel P. Berrange if (!rawpasswddata) { 2224920639caSDaniel P. Berrange return; 2225920639caSDaniel P. Berrange } 2226215a2771SDaniel P. Berrange rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 2227215a2771SDaniel P. Berrange rawpasswddata[rawpasswdlen] = '\0'; 2228215a2771SDaniel P. Berrange 2229215a2771SDaniel P. Berrange if (strchr(rawpasswddata, '\n')) { 2230215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in raw password"); 2231215a2771SDaniel P. Berrange goto out; 2232215a2771SDaniel P. Berrange } 2233215a2771SDaniel P. Berrange 2234215a2771SDaniel P. Berrange if (strchr(username, '\n') || 2235215a2771SDaniel P. Berrange strchr(username, ':')) { 2236215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in username"); 2237215a2771SDaniel P. Berrange goto out; 2238215a2771SDaniel P. Berrange } 2239215a2771SDaniel P. Berrange 2240215a2771SDaniel P. Berrange chpasswddata = g_strdup_printf("%s:%s\n", username, rawpasswddata); 2241215a2771SDaniel P. Berrange chpasswdlen = strlen(chpasswddata); 2242215a2771SDaniel P. Berrange 2243215a2771SDaniel P. Berrange passwd_path = g_find_program_in_path("chpasswd"); 2244215a2771SDaniel P. Berrange 2245215a2771SDaniel P. Berrange if (!passwd_path) { 2246215a2771SDaniel P. Berrange error_setg(errp, "cannot find 'passwd' program in PATH"); 2247215a2771SDaniel P. Berrange goto out; 2248215a2771SDaniel P. Berrange } 2249215a2771SDaniel P. Berrange 2250215a2771SDaniel P. Berrange if (pipe(datafd) < 0) { 2251215a2771SDaniel P. Berrange error_setg(errp, "cannot create pipe FDs"); 2252215a2771SDaniel P. Berrange goto out; 2253215a2771SDaniel P. Berrange } 2254215a2771SDaniel P. Berrange 2255215a2771SDaniel P. Berrange pid = fork(); 2256215a2771SDaniel P. Berrange if (pid == 0) { 2257215a2771SDaniel P. Berrange close(datafd[1]); 2258215a2771SDaniel P. Berrange /* child */ 2259215a2771SDaniel P. Berrange setsid(); 2260215a2771SDaniel P. Berrange dup2(datafd[0], 0); 2261215a2771SDaniel P. Berrange reopen_fd_to_null(1); 2262215a2771SDaniel P. Berrange reopen_fd_to_null(2); 2263215a2771SDaniel P. Berrange 2264215a2771SDaniel P. Berrange if (crypted) { 2265215a2771SDaniel P. Berrange execle(passwd_path, "chpasswd", "-e", NULL, environ); 2266215a2771SDaniel P. Berrange } else { 2267215a2771SDaniel P. Berrange execle(passwd_path, "chpasswd", NULL, environ); 2268215a2771SDaniel P. Berrange } 2269215a2771SDaniel P. Berrange _exit(EXIT_FAILURE); 2270215a2771SDaniel P. Berrange } else if (pid < 0) { 2271215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "failed to create child process"); 2272215a2771SDaniel P. Berrange goto out; 2273215a2771SDaniel P. Berrange } 2274215a2771SDaniel P. Berrange close(datafd[0]); 2275215a2771SDaniel P. Berrange datafd[0] = -1; 2276215a2771SDaniel P. Berrange 2277215a2771SDaniel P. Berrange if (qemu_write_full(datafd[1], chpasswddata, chpasswdlen) != chpasswdlen) { 2278215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "cannot write new account password"); 2279215a2771SDaniel P. Berrange goto out; 2280215a2771SDaniel P. Berrange } 2281215a2771SDaniel P. Berrange close(datafd[1]); 2282215a2771SDaniel P. Berrange datafd[1] = -1; 2283215a2771SDaniel P. Berrange 2284215a2771SDaniel P. Berrange ga_wait_child(pid, &status, &local_err); 2285215a2771SDaniel P. Berrange if (local_err) { 2286215a2771SDaniel P. Berrange error_propagate(errp, local_err); 2287215a2771SDaniel P. Berrange goto out; 2288215a2771SDaniel P. Berrange } 2289215a2771SDaniel P. Berrange 2290215a2771SDaniel P. Berrange if (!WIFEXITED(status)) { 2291215a2771SDaniel P. Berrange error_setg(errp, "child process has terminated abnormally"); 2292215a2771SDaniel P. Berrange goto out; 2293215a2771SDaniel P. Berrange } 2294215a2771SDaniel P. Berrange 2295215a2771SDaniel P. Berrange if (WEXITSTATUS(status)) { 2296215a2771SDaniel P. Berrange error_setg(errp, "child process has failed to set user password"); 2297215a2771SDaniel P. Berrange goto out; 2298215a2771SDaniel P. Berrange } 2299215a2771SDaniel P. Berrange 2300215a2771SDaniel P. Berrange out: 2301215a2771SDaniel P. Berrange g_free(chpasswddata); 2302215a2771SDaniel P. Berrange g_free(rawpasswddata); 2303215a2771SDaniel P. Berrange g_free(passwd_path); 2304215a2771SDaniel P. Berrange if (datafd[0] != -1) { 2305215a2771SDaniel P. Berrange close(datafd[0]); 2306215a2771SDaniel P. Berrange } 2307215a2771SDaniel P. Berrange if (datafd[1] != -1) { 2308215a2771SDaniel P. Berrange close(datafd[1]); 2309215a2771SDaniel P. Berrange } 2310215a2771SDaniel P. Berrange } 2311215a2771SDaniel P. Berrange 2312bd240fcaSzhanghailiang static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, 2313bd240fcaSzhanghailiang int size, Error **errp) 2314bd240fcaSzhanghailiang { 2315bd240fcaSzhanghailiang int fd; 2316bd240fcaSzhanghailiang int res; 2317bd240fcaSzhanghailiang 2318bd240fcaSzhanghailiang errno = 0; 2319bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_RDONLY); 2320bd240fcaSzhanghailiang if (fd == -1) { 2321bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2322bd240fcaSzhanghailiang return; 2323bd240fcaSzhanghailiang } 2324bd240fcaSzhanghailiang 2325bd240fcaSzhanghailiang res = pread(fd, buf, size, 0); 2326bd240fcaSzhanghailiang if (res == -1) { 2327bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); 2328bd240fcaSzhanghailiang } else if (res == 0) { 2329bd240fcaSzhanghailiang error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathname); 2330bd240fcaSzhanghailiang } 2331bd240fcaSzhanghailiang close(fd); 2332bd240fcaSzhanghailiang } 2333bd240fcaSzhanghailiang 2334bd240fcaSzhanghailiang static void ga_write_sysfs_file(int dirfd, const char *pathname, 2335bd240fcaSzhanghailiang const char *buf, int size, Error **errp) 2336bd240fcaSzhanghailiang { 2337bd240fcaSzhanghailiang int fd; 2338bd240fcaSzhanghailiang 2339bd240fcaSzhanghailiang errno = 0; 2340bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_WRONLY); 2341bd240fcaSzhanghailiang if (fd == -1) { 2342bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2343bd240fcaSzhanghailiang return; 2344bd240fcaSzhanghailiang } 2345bd240fcaSzhanghailiang 2346bd240fcaSzhanghailiang if (pwrite(fd, buf, size, 0) == -1) { 2347bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname); 2348bd240fcaSzhanghailiang } 2349bd240fcaSzhanghailiang 2350bd240fcaSzhanghailiang close(fd); 2351bd240fcaSzhanghailiang } 2352bd240fcaSzhanghailiang 2353bd240fcaSzhanghailiang /* Transfer online/offline status between @mem_blk and the guest system. 2354bd240fcaSzhanghailiang * 2355bd240fcaSzhanghailiang * On input either @errp or *@errp must be NULL. 2356bd240fcaSzhanghailiang * 2357bd240fcaSzhanghailiang * In system-to-@mem_blk direction, the following @mem_blk fields are accessed: 2358bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2359bd240fcaSzhanghailiang * - W: mem_blk->online 2360bd240fcaSzhanghailiang * - W: mem_blk->can_offline 2361bd240fcaSzhanghailiang * 2362bd240fcaSzhanghailiang * In @mem_blk-to-system direction, the following @mem_blk fields are accessed: 2363bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2364bd240fcaSzhanghailiang * - R: mem_blk->online 2365bd240fcaSzhanghailiang *- R: mem_blk->can_offline 2366bd240fcaSzhanghailiang * Written members remain unmodified on error. 2367bd240fcaSzhanghailiang */ 2368bd240fcaSzhanghailiang static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memblk, 2369bd240fcaSzhanghailiang GuestMemoryBlockResponse *result, 2370bd240fcaSzhanghailiang Error **errp) 2371bd240fcaSzhanghailiang { 2372bd240fcaSzhanghailiang char *dirpath; 2373bd240fcaSzhanghailiang int dirfd; 2374bd240fcaSzhanghailiang char *status; 2375bd240fcaSzhanghailiang Error *local_err = NULL; 2376bd240fcaSzhanghailiang 2377bd240fcaSzhanghailiang if (!sys2memblk) { 2378bd240fcaSzhanghailiang DIR *dp; 2379bd240fcaSzhanghailiang 2380bd240fcaSzhanghailiang if (!result) { 2381bd240fcaSzhanghailiang error_setg(errp, "Internal error, 'result' should not be NULL"); 2382bd240fcaSzhanghailiang return; 2383bd240fcaSzhanghailiang } 2384bd240fcaSzhanghailiang errno = 0; 2385bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2386bd240fcaSzhanghailiang /* if there is no 'memory' directory in sysfs, 2387bd240fcaSzhanghailiang * we think this VM does not support online/offline memory block, 2388bd240fcaSzhanghailiang * any other solution? 2389bd240fcaSzhanghailiang */ 23909879f5acSPhilippe Mathieu-Daudé if (!dp) { 23919879f5acSPhilippe Mathieu-Daudé if (errno == ENOENT) { 2392bd240fcaSzhanghailiang result->response = 2393bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 23949879f5acSPhilippe Mathieu-Daudé } 2395bd240fcaSzhanghailiang goto out1; 2396bd240fcaSzhanghailiang } 2397bd240fcaSzhanghailiang closedir(dp); 2398bd240fcaSzhanghailiang } 2399bd240fcaSzhanghailiang 2400bd240fcaSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/memory%" PRId64 "/", 2401bd240fcaSzhanghailiang mem_blk->phys_index); 2402bd240fcaSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2403bd240fcaSzhanghailiang if (dirfd == -1) { 2404bd240fcaSzhanghailiang if (sys2memblk) { 2405bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2406bd240fcaSzhanghailiang } else { 2407bd240fcaSzhanghailiang if (errno == ENOENT) { 2408bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_FOUND; 2409bd240fcaSzhanghailiang } else { 2410bd240fcaSzhanghailiang result->response = 2411bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2412bd240fcaSzhanghailiang } 2413bd240fcaSzhanghailiang } 2414bd240fcaSzhanghailiang g_free(dirpath); 2415bd240fcaSzhanghailiang goto out1; 2416bd240fcaSzhanghailiang } 2417bd240fcaSzhanghailiang g_free(dirpath); 2418bd240fcaSzhanghailiang 2419bd240fcaSzhanghailiang status = g_malloc0(10); 2420bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); 2421bd240fcaSzhanghailiang if (local_err) { 2422bd240fcaSzhanghailiang /* treat with sysfs file that not exist in old kernel */ 2423bd240fcaSzhanghailiang if (errno == ENOENT) { 2424bd240fcaSzhanghailiang error_free(local_err); 2425bd240fcaSzhanghailiang if (sys2memblk) { 2426bd240fcaSzhanghailiang mem_blk->online = true; 2427bd240fcaSzhanghailiang mem_blk->can_offline = false; 2428bd240fcaSzhanghailiang } else if (!mem_blk->online) { 2429bd240fcaSzhanghailiang result->response = 2430bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 2431bd240fcaSzhanghailiang } 2432bd240fcaSzhanghailiang } else { 2433bd240fcaSzhanghailiang if (sys2memblk) { 2434bd240fcaSzhanghailiang error_propagate(errp, local_err); 2435bd240fcaSzhanghailiang } else { 2436bd240fcaSzhanghailiang result->response = 2437bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2438bd240fcaSzhanghailiang } 2439bd240fcaSzhanghailiang } 2440bd240fcaSzhanghailiang goto out2; 2441bd240fcaSzhanghailiang } 2442bd240fcaSzhanghailiang 2443bd240fcaSzhanghailiang if (sys2memblk) { 2444bd240fcaSzhanghailiang char removable = '0'; 2445bd240fcaSzhanghailiang 2446bd240fcaSzhanghailiang mem_blk->online = (strncmp(status, "online", 6) == 0); 2447bd240fcaSzhanghailiang 2448bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); 2449bd240fcaSzhanghailiang if (local_err) { 245067cc32ebSVeres Lajos /* if no 'removable' file, it doesn't support offline mem blk */ 2451bd240fcaSzhanghailiang if (errno == ENOENT) { 2452bd240fcaSzhanghailiang error_free(local_err); 2453bd240fcaSzhanghailiang mem_blk->can_offline = false; 2454bd240fcaSzhanghailiang } else { 2455bd240fcaSzhanghailiang error_propagate(errp, local_err); 2456bd240fcaSzhanghailiang } 2457bd240fcaSzhanghailiang } else { 2458bd240fcaSzhanghailiang mem_blk->can_offline = (removable != '0'); 2459bd240fcaSzhanghailiang } 2460bd240fcaSzhanghailiang } else { 2461bd240fcaSzhanghailiang if (mem_blk->online != (strncmp(status, "online", 6) == 0)) { 24627064024dSMarc-André Lureau const char *new_state = mem_blk->online ? "online" : "offline"; 2463bd240fcaSzhanghailiang 2464bd240fcaSzhanghailiang ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_state), 2465bd240fcaSzhanghailiang &local_err); 2466bd240fcaSzhanghailiang if (local_err) { 2467bd240fcaSzhanghailiang error_free(local_err); 2468bd240fcaSzhanghailiang result->response = 2469bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2470bd240fcaSzhanghailiang goto out2; 2471bd240fcaSzhanghailiang } 2472bd240fcaSzhanghailiang 2473bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; 2474bd240fcaSzhanghailiang result->has_error_code = false; 2475bd240fcaSzhanghailiang } /* otherwise pretend successful re-(on|off)-lining */ 2476bd240fcaSzhanghailiang } 2477bd240fcaSzhanghailiang g_free(status); 2478bd240fcaSzhanghailiang close(dirfd); 2479bd240fcaSzhanghailiang return; 2480bd240fcaSzhanghailiang 2481bd240fcaSzhanghailiang out2: 2482bd240fcaSzhanghailiang g_free(status); 2483bd240fcaSzhanghailiang close(dirfd); 2484bd240fcaSzhanghailiang out1: 2485bd240fcaSzhanghailiang if (!sys2memblk) { 2486bd240fcaSzhanghailiang result->has_error_code = true; 2487bd240fcaSzhanghailiang result->error_code = errno; 2488bd240fcaSzhanghailiang } 2489bd240fcaSzhanghailiang } 2490bd240fcaSzhanghailiang 2491a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2492a065aaa9Szhanghailiang { 2493bd240fcaSzhanghailiang GuestMemoryBlockList *head, **link; 2494bd240fcaSzhanghailiang Error *local_err = NULL; 2495bd240fcaSzhanghailiang struct dirent *de; 2496bd240fcaSzhanghailiang DIR *dp; 2497bd240fcaSzhanghailiang 2498bd240fcaSzhanghailiang head = NULL; 2499bd240fcaSzhanghailiang link = &head; 2500bd240fcaSzhanghailiang 2501bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2502bd240fcaSzhanghailiang if (!dp) { 2503f693fe6eSMichael Roth /* it's ok if this happens to be a system that doesn't expose 2504f693fe6eSMichael Roth * memory blocks via sysfs, but otherwise we should report 2505f693fe6eSMichael Roth * an error 2506f693fe6eSMichael Roth */ 2507f693fe6eSMichael Roth if (errno != ENOENT) { 2508bd240fcaSzhanghailiang error_setg_errno(errp, errno, "Can't open directory" 25099af9e0feSMarkus Armbruster "\"/sys/devices/system/memory/\""); 2510f693fe6eSMichael Roth } 2511bd240fcaSzhanghailiang return NULL; 2512bd240fcaSzhanghailiang } 2513bd240fcaSzhanghailiang 2514bd240fcaSzhanghailiang /* Note: the phys_index of memory block may be discontinuous, 2515bd240fcaSzhanghailiang * this is because a memblk is the unit of the Sparse Memory design, which 2516bd240fcaSzhanghailiang * allows discontinuous memory ranges (ex. NUMA), so here we should 2517bd240fcaSzhanghailiang * traverse the memory block directory. 2518bd240fcaSzhanghailiang */ 2519bd240fcaSzhanghailiang while ((de = readdir(dp)) != NULL) { 2520bd240fcaSzhanghailiang GuestMemoryBlock *mem_blk; 2521bd240fcaSzhanghailiang GuestMemoryBlockList *entry; 2522bd240fcaSzhanghailiang 2523bd240fcaSzhanghailiang if ((strncmp(de->d_name, "memory", 6) != 0) || 2524bd240fcaSzhanghailiang !(de->d_type & DT_DIR)) { 2525bd240fcaSzhanghailiang continue; 2526bd240fcaSzhanghailiang } 2527bd240fcaSzhanghailiang 2528bd240fcaSzhanghailiang mem_blk = g_malloc0(sizeof *mem_blk); 2529bd240fcaSzhanghailiang /* The d_name is "memoryXXX", phys_index is block id, same as XXX */ 2530bd240fcaSzhanghailiang mem_blk->phys_index = strtoul(&de->d_name[6], NULL, 10); 2531bd240fcaSzhanghailiang mem_blk->has_can_offline = true; /* lolspeak ftw */ 2532bd240fcaSzhanghailiang transfer_memory_block(mem_blk, true, NULL, &local_err); 2533bd240fcaSzhanghailiang 2534bd240fcaSzhanghailiang entry = g_malloc0(sizeof *entry); 2535bd240fcaSzhanghailiang entry->value = mem_blk; 2536bd240fcaSzhanghailiang 2537bd240fcaSzhanghailiang *link = entry; 2538bd240fcaSzhanghailiang link = &entry->next; 2539bd240fcaSzhanghailiang } 2540bd240fcaSzhanghailiang 2541bd240fcaSzhanghailiang closedir(dp); 2542bd240fcaSzhanghailiang if (local_err == NULL) { 2543bd240fcaSzhanghailiang /* there's no guest with zero memory blocks */ 2544bd240fcaSzhanghailiang if (head == NULL) { 2545bd240fcaSzhanghailiang error_setg(errp, "guest reported zero memory blocks!"); 2546bd240fcaSzhanghailiang } 2547bd240fcaSzhanghailiang return head; 2548bd240fcaSzhanghailiang } 2549bd240fcaSzhanghailiang 2550bd240fcaSzhanghailiang qapi_free_GuestMemoryBlockList(head); 2551bd240fcaSzhanghailiang error_propagate(errp, local_err); 2552a065aaa9Szhanghailiang return NULL; 2553a065aaa9Szhanghailiang } 2554a065aaa9Szhanghailiang 2555a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2556a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2557a065aaa9Szhanghailiang { 255832ca7927Szhanghailiang GuestMemoryBlockResponseList *head, **link; 255932ca7927Szhanghailiang Error *local_err = NULL; 256032ca7927Szhanghailiang 256132ca7927Szhanghailiang head = NULL; 256232ca7927Szhanghailiang link = &head; 256332ca7927Szhanghailiang 256432ca7927Szhanghailiang while (mem_blks != NULL) { 256532ca7927Szhanghailiang GuestMemoryBlockResponse *result; 256632ca7927Szhanghailiang GuestMemoryBlockResponseList *entry; 256732ca7927Szhanghailiang GuestMemoryBlock *current_mem_blk = mem_blks->value; 256832ca7927Szhanghailiang 256932ca7927Szhanghailiang result = g_malloc0(sizeof(*result)); 257032ca7927Szhanghailiang result->phys_index = current_mem_blk->phys_index; 257132ca7927Szhanghailiang transfer_memory_block(current_mem_blk, false, result, &local_err); 257232ca7927Szhanghailiang if (local_err) { /* should never happen */ 257332ca7927Szhanghailiang goto err; 257432ca7927Szhanghailiang } 257532ca7927Szhanghailiang entry = g_malloc0(sizeof *entry); 257632ca7927Szhanghailiang entry->value = result; 257732ca7927Szhanghailiang 257832ca7927Szhanghailiang *link = entry; 257932ca7927Szhanghailiang link = &entry->next; 258032ca7927Szhanghailiang mem_blks = mem_blks->next; 258132ca7927Szhanghailiang } 258232ca7927Szhanghailiang 258332ca7927Szhanghailiang return head; 258432ca7927Szhanghailiang err: 258532ca7927Szhanghailiang qapi_free_GuestMemoryBlockResponseList(head); 258632ca7927Szhanghailiang error_propagate(errp, local_err); 2587a065aaa9Szhanghailiang return NULL; 2588a065aaa9Szhanghailiang } 2589a065aaa9Szhanghailiang 2590a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2591a065aaa9Szhanghailiang { 2592ef82b60bSzhanghailiang Error *local_err = NULL; 2593ef82b60bSzhanghailiang char *dirpath; 2594ef82b60bSzhanghailiang int dirfd; 2595ef82b60bSzhanghailiang char *buf; 2596ef82b60bSzhanghailiang GuestMemoryBlockInfo *info; 2597ef82b60bSzhanghailiang 2598ef82b60bSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/"); 2599ef82b60bSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2600ef82b60bSzhanghailiang if (dirfd == -1) { 2601ef82b60bSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2602ef82b60bSzhanghailiang g_free(dirpath); 2603a065aaa9Szhanghailiang return NULL; 2604a065aaa9Szhanghailiang } 2605ef82b60bSzhanghailiang g_free(dirpath); 2606ef82b60bSzhanghailiang 2607ef82b60bSzhanghailiang buf = g_malloc0(20); 2608ef82b60bSzhanghailiang ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); 26098ce1ee46SShannon Zhao close(dirfd); 2610ef82b60bSzhanghailiang if (local_err) { 2611ef82b60bSzhanghailiang g_free(buf); 2612ef82b60bSzhanghailiang error_propagate(errp, local_err); 2613ef82b60bSzhanghailiang return NULL; 2614ef82b60bSzhanghailiang } 2615ef82b60bSzhanghailiang 2616ef82b60bSzhanghailiang info = g_new0(GuestMemoryBlockInfo, 1); 2617ef82b60bSzhanghailiang info->size = strtol(buf, NULL, 16); /* the unit is bytes */ 2618ef82b60bSzhanghailiang 2619ef82b60bSzhanghailiang g_free(buf); 2620ef82b60bSzhanghailiang 2621ef82b60bSzhanghailiang return info; 2622ef82b60bSzhanghailiang } 2623a065aaa9Szhanghailiang 2624e72c3f2eSMichael Roth #else /* defined(__linux__) */ 2625e72c3f2eSMichael Roth 262677dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 2627e72c3f2eSMichael Roth { 2628c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2629e72c3f2eSMichael Roth } 2630e72c3f2eSMichael Roth 263177dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 2632e72c3f2eSMichael Roth { 2633c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2634e72c3f2eSMichael Roth } 2635e72c3f2eSMichael Roth 263677dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 2637e72c3f2eSMichael Roth { 2638c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2639e72c3f2eSMichael Roth } 2640e72c3f2eSMichael Roth 2641e72c3f2eSMichael Roth GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 2642e72c3f2eSMichael Roth { 2643c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2644e72c3f2eSMichael Roth return NULL; 2645e72c3f2eSMichael Roth } 2646e72c3f2eSMichael Roth 2647d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2648d2baff62SLaszlo Ersek { 2649c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2650d2baff62SLaszlo Ersek return NULL; 2651d2baff62SLaszlo Ersek } 2652d2baff62SLaszlo Ersek 2653cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2654cbb65fc2SLaszlo Ersek { 2655c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2656cbb65fc2SLaszlo Ersek return -1; 2657cbb65fc2SLaszlo Ersek } 2658cbb65fc2SLaszlo Ersek 2659215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2660215a2771SDaniel P. Berrange const char *password, 2661215a2771SDaniel P. Berrange bool crypted, 2662215a2771SDaniel P. Berrange Error **errp) 2663215a2771SDaniel P. Berrange { 2664c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2665215a2771SDaniel P. Berrange } 2666215a2771SDaniel P. Berrange 2667a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2668a065aaa9Szhanghailiang { 2669c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2670a065aaa9Szhanghailiang return NULL; 2671a065aaa9Szhanghailiang } 2672a065aaa9Szhanghailiang 2673a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2674a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2675a065aaa9Szhanghailiang { 2676c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2677a065aaa9Szhanghailiang return NULL; 2678a065aaa9Szhanghailiang } 2679a065aaa9Szhanghailiang 2680a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2681a065aaa9Szhanghailiang { 2682c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2683a065aaa9Szhanghailiang return NULL; 2684a065aaa9Szhanghailiang } 2685a065aaa9Szhanghailiang 2686e72c3f2eSMichael Roth #endif 2687e72c3f2eSMichael Roth 2688d35d4cb5SMichael Roth #if !defined(CONFIG_FSFREEZE) 2689d35d4cb5SMichael Roth 269046d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 269146d4c572STomoki Sekiyama { 2692c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 269346d4c572STomoki Sekiyama return NULL; 269446d4c572STomoki Sekiyama } 269546d4c572STomoki Sekiyama 269677dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 2697d35d4cb5SMichael Roth { 2698c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2699d35d4cb5SMichael Roth 2700d35d4cb5SMichael Roth return 0; 2701d35d4cb5SMichael Roth } 2702d35d4cb5SMichael Roth 270377dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_freeze(Error **errp) 2704d35d4cb5SMichael Roth { 2705c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2706d35d4cb5SMichael Roth 2707d35d4cb5SMichael Roth return 0; 2708d35d4cb5SMichael Roth } 2709d35d4cb5SMichael Roth 2710e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 2711e99bce20STomoki Sekiyama strList *mountpoints, 2712e99bce20STomoki Sekiyama Error **errp) 2713e99bce20STomoki Sekiyama { 2714c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2715e99bce20STomoki Sekiyama 2716e99bce20STomoki Sekiyama return 0; 2717e99bce20STomoki Sekiyama } 2718e99bce20STomoki Sekiyama 271977dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 2720d35d4cb5SMichael Roth { 2721c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2722d35d4cb5SMichael Roth 2723d35d4cb5SMichael Roth return 0; 2724d35d4cb5SMichael Roth } 2725eab5fd59SPaolo Bonzini #endif /* CONFIG_FSFREEZE */ 2726d35d4cb5SMichael Roth 2727eab5fd59SPaolo Bonzini #if !defined(CONFIG_FSTRIM) 2728e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 2729e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 2730eab5fd59SPaolo Bonzini { 2731c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2732e82855d9SJustin Ossevoort return NULL; 2733eab5fd59SPaolo Bonzini } 2734d35d4cb5SMichael Roth #endif 2735d35d4cb5SMichael Roth 27361281c08aSTomoki Sekiyama /* add unsupported commands to the blacklist */ 27371281c08aSTomoki Sekiyama GList *ga_command_blacklist_init(GList *blacklist) 27381281c08aSTomoki Sekiyama { 27391281c08aSTomoki Sekiyama #if !defined(__linux__) 27401281c08aSTomoki Sekiyama { 27411281c08aSTomoki Sekiyama const char *list[] = { 27421281c08aSTomoki Sekiyama "guest-suspend-disk", "guest-suspend-ram", 27431281c08aSTomoki Sekiyama "guest-suspend-hybrid", "guest-network-get-interfaces", 27440dd38a03Szhanghailiang "guest-get-vcpus", "guest-set-vcpus", 27450dd38a03Szhanghailiang "guest-get-memory-blocks", "guest-set-memory-blocks", 274628d8dd35SBasil Salman "guest-get-memory-block-size", "guest-get-memory-block-info", 274728d8dd35SBasil Salman NULL}; 27481281c08aSTomoki Sekiyama char **p = (char **)list; 27491281c08aSTomoki Sekiyama 27501281c08aSTomoki Sekiyama while (*p) { 27514bca81ceSMarc-André Lureau blacklist = g_list_append(blacklist, g_strdup(*p++)); 27521281c08aSTomoki Sekiyama } 27531281c08aSTomoki Sekiyama } 27541281c08aSTomoki Sekiyama #endif 27551281c08aSTomoki Sekiyama 27561281c08aSTomoki Sekiyama #if !defined(CONFIG_FSFREEZE) 27571281c08aSTomoki Sekiyama { 27581281c08aSTomoki Sekiyama const char *list[] = { 27591281c08aSTomoki Sekiyama "guest-get-fsinfo", "guest-fsfreeze-status", 27601281c08aSTomoki Sekiyama "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", 27611281c08aSTomoki Sekiyama "guest-fsfreeze-thaw", "guest-get-fsinfo", NULL}; 27621281c08aSTomoki Sekiyama char **p = (char **)list; 27631281c08aSTomoki Sekiyama 27641281c08aSTomoki Sekiyama while (*p) { 27654bca81ceSMarc-André Lureau blacklist = g_list_append(blacklist, g_strdup(*p++)); 27661281c08aSTomoki Sekiyama } 27671281c08aSTomoki Sekiyama } 27681281c08aSTomoki Sekiyama #endif 27691281c08aSTomoki Sekiyama 27701281c08aSTomoki Sekiyama #if !defined(CONFIG_FSTRIM) 27714bca81ceSMarc-André Lureau blacklist = g_list_append(blacklist, g_strdup("guest-fstrim")); 27721281c08aSTomoki Sekiyama #endif 27731281c08aSTomoki Sekiyama 27741281c08aSTomoki Sekiyama return blacklist; 27751281c08aSTomoki Sekiyama } 27761281c08aSTomoki Sekiyama 2777c216e5adSMichael Roth /* register init/cleanup routines for stateful command groups */ 2778c216e5adSMichael Roth void ga_command_state_init(GAState *s, GACommandState *cs) 2779c216e5adSMichael Roth { 2780c216e5adSMichael Roth #if defined(CONFIG_FSFREEZE) 2781f22d85e9SMichael Roth ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2782c216e5adSMichael Roth #endif 2783c216e5adSMichael Roth } 2784161a56a9SVinzenz Feenstra 2785e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 2786e674605fSTomáš Golembiovský 2787161a56a9SVinzenz Feenstra #define QGA_MICRO_SECOND_TO_SECOND 1000000 2788161a56a9SVinzenz Feenstra 2789161a56a9SVinzenz Feenstra static double ga_get_login_time(struct utmpx *user_info) 2790161a56a9SVinzenz Feenstra { 2791161a56a9SVinzenz Feenstra double seconds = (double)user_info->ut_tv.tv_sec; 2792161a56a9SVinzenz Feenstra double useconds = (double)user_info->ut_tv.tv_usec; 2793161a56a9SVinzenz Feenstra useconds /= QGA_MICRO_SECOND_TO_SECOND; 2794161a56a9SVinzenz Feenstra return seconds + useconds; 2795161a56a9SVinzenz Feenstra } 2796161a56a9SVinzenz Feenstra 2797161a56a9SVinzenz Feenstra GuestUserList *qmp_guest_get_users(Error **err) 2798161a56a9SVinzenz Feenstra { 2799161a56a9SVinzenz Feenstra GHashTable *cache = NULL; 2800161a56a9SVinzenz Feenstra GuestUserList *head = NULL, *cur_item = NULL; 2801161a56a9SVinzenz Feenstra struct utmpx *user_info = NULL; 2802161a56a9SVinzenz Feenstra gpointer value = NULL; 2803161a56a9SVinzenz Feenstra GuestUser *user = NULL; 2804161a56a9SVinzenz Feenstra GuestUserList *item = NULL; 2805161a56a9SVinzenz Feenstra double login_time = 0; 2806161a56a9SVinzenz Feenstra 2807161a56a9SVinzenz Feenstra cache = g_hash_table_new(g_str_hash, g_str_equal); 2808161a56a9SVinzenz Feenstra setutxent(); 2809161a56a9SVinzenz Feenstra 2810161a56a9SVinzenz Feenstra for (;;) { 2811161a56a9SVinzenz Feenstra user_info = getutxent(); 2812161a56a9SVinzenz Feenstra if (user_info == NULL) { 2813161a56a9SVinzenz Feenstra break; 2814161a56a9SVinzenz Feenstra } else if (user_info->ut_type != USER_PROCESS) { 2815161a56a9SVinzenz Feenstra continue; 2816161a56a9SVinzenz Feenstra } else if (g_hash_table_contains(cache, user_info->ut_user)) { 2817161a56a9SVinzenz Feenstra value = g_hash_table_lookup(cache, user_info->ut_user); 2818161a56a9SVinzenz Feenstra user = (GuestUser *)value; 2819161a56a9SVinzenz Feenstra login_time = ga_get_login_time(user_info); 2820161a56a9SVinzenz Feenstra /* We're ensuring the earliest login time to be sent */ 2821161a56a9SVinzenz Feenstra if (login_time < user->login_time) { 2822161a56a9SVinzenz Feenstra user->login_time = login_time; 2823161a56a9SVinzenz Feenstra } 2824161a56a9SVinzenz Feenstra continue; 2825161a56a9SVinzenz Feenstra } 2826161a56a9SVinzenz Feenstra 2827161a56a9SVinzenz Feenstra item = g_new0(GuestUserList, 1); 2828161a56a9SVinzenz Feenstra item->value = g_new0(GuestUser, 1); 2829161a56a9SVinzenz Feenstra item->value->user = g_strdup(user_info->ut_user); 2830161a56a9SVinzenz Feenstra item->value->login_time = ga_get_login_time(user_info); 2831161a56a9SVinzenz Feenstra 2832161a56a9SVinzenz Feenstra g_hash_table_insert(cache, item->value->user, item->value); 2833161a56a9SVinzenz Feenstra 2834161a56a9SVinzenz Feenstra if (!cur_item) { 2835161a56a9SVinzenz Feenstra head = cur_item = item; 2836161a56a9SVinzenz Feenstra } else { 2837161a56a9SVinzenz Feenstra cur_item->next = item; 2838161a56a9SVinzenz Feenstra cur_item = item; 2839161a56a9SVinzenz Feenstra } 2840161a56a9SVinzenz Feenstra } 2841161a56a9SVinzenz Feenstra endutxent(); 2842161a56a9SVinzenz Feenstra g_hash_table_destroy(cache); 2843161a56a9SVinzenz Feenstra return head; 2844161a56a9SVinzenz Feenstra } 2845e674605fSTomáš Golembiovský 2846e674605fSTomáš Golembiovský #else 2847e674605fSTomáš Golembiovský 2848e674605fSTomáš Golembiovský GuestUserList *qmp_guest_get_users(Error **errp) 2849e674605fSTomáš Golembiovský { 2850e674605fSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 2851e674605fSTomáš Golembiovský return NULL; 2852e674605fSTomáš Golembiovský } 2853e674605fSTomáš Golembiovský 2854e674605fSTomáš Golembiovský #endif 28559848f797STomáš Golembiovský 28569848f797STomáš Golembiovský /* Replace escaped special characters with theire real values. The replacement 28579848f797STomáš Golembiovský * is done in place -- returned value is in the original string. 28589848f797STomáš Golembiovský */ 28599848f797STomáš Golembiovský static void ga_osrelease_replace_special(gchar *value) 28609848f797STomáš Golembiovský { 28619848f797STomáš Golembiovský gchar *p, *p2, quote; 28629848f797STomáš Golembiovský 28639848f797STomáš Golembiovský /* Trim the string at first space or semicolon if it is not enclosed in 28649848f797STomáš Golembiovský * single or double quotes. */ 28659848f797STomáš Golembiovský if ((value[0] != '"') || (value[0] == '\'')) { 28669848f797STomáš Golembiovský p = strchr(value, ' '); 28679848f797STomáš Golembiovský if (p != NULL) { 28689848f797STomáš Golembiovský *p = 0; 28699848f797STomáš Golembiovský } 28709848f797STomáš Golembiovský p = strchr(value, ';'); 28719848f797STomáš Golembiovský if (p != NULL) { 28729848f797STomáš Golembiovský *p = 0; 28739848f797STomáš Golembiovský } 28749848f797STomáš Golembiovský return; 28759848f797STomáš Golembiovský } 28769848f797STomáš Golembiovský 28779848f797STomáš Golembiovský quote = value[0]; 28789848f797STomáš Golembiovský p2 = value; 28799848f797STomáš Golembiovský p = value + 1; 28809848f797STomáš Golembiovský while (*p != 0) { 28819848f797STomáš Golembiovský if (*p == '\\') { 28829848f797STomáš Golembiovský p++; 28839848f797STomáš Golembiovský switch (*p) { 28849848f797STomáš Golembiovský case '$': 28859848f797STomáš Golembiovský case '\'': 28869848f797STomáš Golembiovský case '"': 28879848f797STomáš Golembiovský case '\\': 28889848f797STomáš Golembiovský case '`': 28899848f797STomáš Golembiovský break; 28909848f797STomáš Golembiovský default: 28919848f797STomáš Golembiovský /* Keep literal backslash followed by whatever is there */ 28929848f797STomáš Golembiovský p--; 28939848f797STomáš Golembiovský break; 28949848f797STomáš Golembiovský } 28959848f797STomáš Golembiovský } else if (*p == quote) { 28969848f797STomáš Golembiovský *p2 = 0; 28979848f797STomáš Golembiovský break; 28989848f797STomáš Golembiovský } 28999848f797STomáš Golembiovský *(p2++) = *(p++); 29009848f797STomáš Golembiovský } 29019848f797STomáš Golembiovský } 29029848f797STomáš Golembiovský 29039848f797STomáš Golembiovský static GKeyFile *ga_parse_osrelease(const char *fname) 29049848f797STomáš Golembiovský { 29059848f797STomáš Golembiovský gchar *content = NULL; 29069848f797STomáš Golembiovský gchar *content2 = NULL; 29079848f797STomáš Golembiovský GError *err = NULL; 29089848f797STomáš Golembiovský GKeyFile *keys = g_key_file_new(); 29099848f797STomáš Golembiovský const char *group = "[os-release]\n"; 29109848f797STomáš Golembiovský 29119848f797STomáš Golembiovský if (!g_file_get_contents(fname, &content, NULL, &err)) { 29129848f797STomáš Golembiovský slog("failed to read '%s', error: %s", fname, err->message); 29139848f797STomáš Golembiovský goto fail; 29149848f797STomáš Golembiovský } 29159848f797STomáš Golembiovský 29169848f797STomáš Golembiovský if (!g_utf8_validate(content, -1, NULL)) { 29179848f797STomáš Golembiovský slog("file is not utf-8 encoded: %s", fname); 29189848f797STomáš Golembiovský goto fail; 29199848f797STomáš Golembiovský } 29209848f797STomáš Golembiovský content2 = g_strdup_printf("%s%s", group, content); 29219848f797STomáš Golembiovský 29229848f797STomáš Golembiovský if (!g_key_file_load_from_data(keys, content2, -1, G_KEY_FILE_NONE, 29239848f797STomáš Golembiovský &err)) { 29249848f797STomáš Golembiovský slog("failed to parse file '%s', error: %s", fname, err->message); 29259848f797STomáš Golembiovský goto fail; 29269848f797STomáš Golembiovský } 29279848f797STomáš Golembiovský 29289848f797STomáš Golembiovský g_free(content); 29299848f797STomáš Golembiovský g_free(content2); 29309848f797STomáš Golembiovský return keys; 29319848f797STomáš Golembiovský 29329848f797STomáš Golembiovský fail: 29339848f797STomáš Golembiovský g_error_free(err); 29349848f797STomáš Golembiovský g_free(content); 29359848f797STomáš Golembiovský g_free(content2); 29369848f797STomáš Golembiovský g_key_file_free(keys); 29379848f797STomáš Golembiovský return NULL; 29389848f797STomáš Golembiovský } 29399848f797STomáš Golembiovský 29409848f797STomáš Golembiovský GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 29419848f797STomáš Golembiovský { 29429848f797STomáš Golembiovský GuestOSInfo *info = NULL; 29439848f797STomáš Golembiovský struct utsname kinfo; 2944339ca68bSTomáš Golembiovský GKeyFile *osrelease = NULL; 2945339ca68bSTomáš Golembiovský const char *qga_os_release = g_getenv("QGA_OS_RELEASE"); 29469848f797STomáš Golembiovský 29479848f797STomáš Golembiovský info = g_new0(GuestOSInfo, 1); 29489848f797STomáš Golembiovský 29499848f797STomáš Golembiovský if (uname(&kinfo) != 0) { 29509848f797STomáš Golembiovský error_setg_errno(errp, errno, "uname failed"); 29519848f797STomáš Golembiovský } else { 29529848f797STomáš Golembiovský info->has_kernel_version = true; 29539848f797STomáš Golembiovský info->kernel_version = g_strdup(kinfo.version); 29549848f797STomáš Golembiovský info->has_kernel_release = true; 29559848f797STomáš Golembiovský info->kernel_release = g_strdup(kinfo.release); 29569848f797STomáš Golembiovský info->has_machine = true; 29579848f797STomáš Golembiovský info->machine = g_strdup(kinfo.machine); 29589848f797STomáš Golembiovský } 29599848f797STomáš Golembiovský 2960339ca68bSTomáš Golembiovský if (qga_os_release != NULL) { 2961339ca68bSTomáš Golembiovský osrelease = ga_parse_osrelease(qga_os_release); 2962339ca68bSTomáš Golembiovský } else { 29639848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/etc/os-release"); 29649848f797STomáš Golembiovský if (osrelease == NULL) { 29659848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/usr/lib/os-release"); 29669848f797STomáš Golembiovský } 2967339ca68bSTomáš Golembiovský } 29689848f797STomáš Golembiovský 29699848f797STomáš Golembiovský if (osrelease != NULL) { 29709848f797STomáš Golembiovský char *value; 29719848f797STomáš Golembiovský 29729848f797STomáš Golembiovský #define GET_FIELD(field, osfield) do { \ 29739848f797STomáš Golembiovský value = g_key_file_get_value(osrelease, "os-release", osfield, NULL); \ 29749848f797STomáš Golembiovský if (value != NULL) { \ 29759848f797STomáš Golembiovský ga_osrelease_replace_special(value); \ 29769848f797STomáš Golembiovský info->has_ ## field = true; \ 29779848f797STomáš Golembiovský info->field = value; \ 29789848f797STomáš Golembiovský } \ 29799848f797STomáš Golembiovský } while (0) 29809848f797STomáš Golembiovský GET_FIELD(id, "ID"); 29819848f797STomáš Golembiovský GET_FIELD(name, "NAME"); 29829848f797STomáš Golembiovský GET_FIELD(pretty_name, "PRETTY_NAME"); 29839848f797STomáš Golembiovský GET_FIELD(version, "VERSION"); 29849848f797STomáš Golembiovský GET_FIELD(version_id, "VERSION_ID"); 29859848f797STomáš Golembiovský GET_FIELD(variant, "VARIANT"); 29869848f797STomáš Golembiovský GET_FIELD(variant_id, "VARIANT_ID"); 29879848f797STomáš Golembiovský #undef GET_FIELD 29889848f797STomáš Golembiovský 29899848f797STomáš Golembiovský g_key_file_free(osrelease); 29909848f797STomáš Golembiovský } 29919848f797STomáš Golembiovský 29929848f797STomáš Golembiovský return info; 29939848f797STomáš Golembiovský } 2994