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> 19eb815e24SMarkus Armbruster #include "qga-qapi-commands.h" 20e688df6bSMarkus Armbruster #include "qapi/error.h" 217b1b5d19SPaolo Bonzini #include "qapi/qmp/qerror.h" 221de7afc9SPaolo Bonzini #include "qemu/host-utils.h" 2312505396SDenis V. Lunev #include "qemu/sockets.h" 24920639caSDaniel P. Berrange #include "qemu/base64.h" 25f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 265d3586b8SPhilippe Mathieu-Daudé #include "commands-common.h" 2722668881Szhenwei pi #include "block/nvme.h" 281a89a17bSMarc-André Lureau #include "cutils.h" 29c216e5adSMichael Roth 30e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 31e674605fSTomáš Golembiovský #include <utmpx.h> 32e674605fSTomáš Golembiovský #endif 33e674605fSTomáš Golembiovský 34e72c3f2eSMichael Roth #if defined(__linux__) 35e72c3f2eSMichael Roth #include <mntent.h> 36e72c3f2eSMichael Roth #include <linux/fs.h> 3725b5ff1aSChen Hanxiao #include <sys/statvfs.h> 3822668881Szhenwei pi #include <linux/nvme_ioctl.h> 39e72c3f2eSMichael Roth 40b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 41b616105aSTomáš Golembiovský #include <libudev.h> 42b616105aSTomáš Golembiovský #endif 43b616105aSTomáš Golembiovský 44eab5fd59SPaolo Bonzini #ifdef FIFREEZE 45e72c3f2eSMichael Roth #define CONFIG_FSFREEZE 46e72c3f2eSMichael Roth #endif 47eab5fd59SPaolo Bonzini #ifdef FITRIM 48eab5fd59SPaolo Bonzini #define CONFIG_FSTRIM 49eab5fd59SPaolo Bonzini #endif 50e72c3f2eSMichael Roth #endif 51e72c3f2eSMichael Roth 52c6cd588bSAlexander Ivanov #ifdef __FreeBSD__ 53c6cd588bSAlexander Ivanov /* 54c6cd588bSAlexander Ivanov * The code under HAVE_GETIFADDRS condition can't be compiled in FreeBSD. 55c6cd588bSAlexander Ivanov * Fix it in one of the following patches. 56c6cd588bSAlexander Ivanov */ 57c6cd588bSAlexander Ivanov #undef HAVE_GETIFADDRS 58c6cd588bSAlexander Ivanov #endif 59c6cd588bSAlexander Ivanov 6059e35c7bSAndrew Deason #ifdef HAVE_GETIFADDRS 6159e35c7bSAndrew Deason #include <arpa/inet.h> 6259e35c7bSAndrew Deason #include <sys/socket.h> 6359e35c7bSAndrew Deason #include <net/if.h> 6459e35c7bSAndrew Deason #include <sys/types.h> 6559e35c7bSAndrew Deason #include <ifaddrs.h> 6659e35c7bSAndrew Deason #ifdef CONFIG_SOLARIS 6759e35c7bSAndrew Deason #include <sys/sockio.h> 6859e35c7bSAndrew Deason #endif 6959e35c7bSAndrew Deason #endif 7059e35c7bSAndrew Deason 7177dbc81bSMarkus Armbruster static void ga_wait_child(pid_t pid, int *status, Error **errp) 72d220a6dfSLuiz Capitulino { 73d220a6dfSLuiz Capitulino pid_t rpid; 74d220a6dfSLuiz Capitulino 75d220a6dfSLuiz Capitulino *status = 0; 76d220a6dfSLuiz Capitulino 77d220a6dfSLuiz Capitulino do { 78d220a6dfSLuiz Capitulino rpid = waitpid(pid, status, 0); 79d220a6dfSLuiz Capitulino } while (rpid == -1 && errno == EINTR); 80d220a6dfSLuiz Capitulino 81d220a6dfSLuiz Capitulino if (rpid == -1) { 8277dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to wait for child (pid: %d)", 8377dbc81bSMarkus Armbruster pid); 84d220a6dfSLuiz Capitulino return; 85d220a6dfSLuiz Capitulino } 86d220a6dfSLuiz Capitulino 87d220a6dfSLuiz Capitulino g_assert(rpid == pid); 88d220a6dfSLuiz Capitulino } 89d220a6dfSLuiz Capitulino 9077dbc81bSMarkus Armbruster void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 91c216e5adSMichael Roth { 92c216e5adSMichael Roth const char *shutdown_flag; 93d220a6dfSLuiz Capitulino Error *local_err = NULL; 94d220a6dfSLuiz Capitulino pid_t pid; 953674838cSLuiz Capitulino int status; 96c216e5adSMichael Roth 97c8ec041dSAndrew Deason #ifdef CONFIG_SOLARIS 98c8ec041dSAndrew Deason const char *powerdown_flag = "-i5"; 99c8ec041dSAndrew Deason const char *halt_flag = "-i0"; 100c8ec041dSAndrew Deason const char *reboot_flag = "-i6"; 101c8ec041dSAndrew Deason #else 102c8ec041dSAndrew Deason const char *powerdown_flag = "-P"; 103c8ec041dSAndrew Deason const char *halt_flag = "-H"; 104c8ec041dSAndrew Deason const char *reboot_flag = "-r"; 105c8ec041dSAndrew Deason #endif 106c8ec041dSAndrew Deason 107c216e5adSMichael Roth slog("guest-shutdown called, mode: %s", mode); 108c216e5adSMichael Roth if (!has_mode || strcmp(mode, "powerdown") == 0) { 109c8ec041dSAndrew Deason shutdown_flag = powerdown_flag; 110c216e5adSMichael Roth } else if (strcmp(mode, "halt") == 0) { 111c8ec041dSAndrew Deason shutdown_flag = halt_flag; 112c216e5adSMichael Roth } else if (strcmp(mode, "reboot") == 0) { 113c8ec041dSAndrew Deason shutdown_flag = reboot_flag; 114c216e5adSMichael Roth } else { 11577dbc81bSMarkus Armbruster error_setg(errp, 116d220a6dfSLuiz Capitulino "mode is invalid (valid values are: halt|powerdown|reboot"); 117c216e5adSMichael Roth return; 118c216e5adSMichael Roth } 119c216e5adSMichael Roth 120d5dd3498SLuiz Capitulino pid = fork(); 121d5dd3498SLuiz Capitulino if (pid == 0) { 122c216e5adSMichael Roth /* child, start the shutdown */ 123c216e5adSMichael Roth setsid(); 1243674838cSLuiz Capitulino reopen_fd_to_null(0); 1253674838cSLuiz Capitulino reopen_fd_to_null(1); 1263674838cSLuiz Capitulino reopen_fd_to_null(2); 127c216e5adSMichael Roth 128c8ec041dSAndrew Deason #ifdef CONFIG_SOLARIS 129c8ec041dSAndrew Deason execl("/sbin/shutdown", "shutdown", shutdown_flag, "-g0", "-y", 130c8ec041dSAndrew Deason "hypervisor initiated shutdown", (char *)NULL); 131c8ec041dSAndrew Deason #else 132fcc41961SMarc-André Lureau execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0", 133fcc41961SMarc-André Lureau "hypervisor initiated shutdown", (char *)NULL); 134c8ec041dSAndrew Deason #endif 1353674838cSLuiz Capitulino _exit(EXIT_FAILURE); 136d5dd3498SLuiz Capitulino } else if (pid < 0) { 13777dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 138d5dd3498SLuiz Capitulino return; 139d5dd3498SLuiz Capitulino } 140d5dd3498SLuiz Capitulino 141d220a6dfSLuiz Capitulino ga_wait_child(pid, &status, &local_err); 14284d18f06SMarkus Armbruster if (local_err) { 14377dbc81bSMarkus Armbruster error_propagate(errp, local_err); 144d220a6dfSLuiz Capitulino return; 145d220a6dfSLuiz Capitulino } 146d220a6dfSLuiz Capitulino 147d220a6dfSLuiz Capitulino if (!WIFEXITED(status)) { 14877dbc81bSMarkus Armbruster error_setg(errp, "child process has terminated abnormally"); 149d220a6dfSLuiz Capitulino return; 150d220a6dfSLuiz Capitulino } 151d220a6dfSLuiz Capitulino 152d220a6dfSLuiz Capitulino if (WEXITSTATUS(status)) { 15377dbc81bSMarkus Armbruster error_setg(errp, "child process has failed to shutdown"); 154d220a6dfSLuiz Capitulino return; 155d220a6dfSLuiz Capitulino } 156d220a6dfSLuiz Capitulino 157085d8134SPeter Maydell /* succeeded */ 158c216e5adSMichael Roth } 159c216e5adSMichael Roth 1602c958923SMichal Privoznik void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 161a1bca57fSLei Li { 162a1bca57fSLei Li int ret; 163a1bca57fSLei Li int status; 164a1bca57fSLei Li pid_t pid; 165a1bca57fSLei Li Error *local_err = NULL; 166a1bca57fSLei Li struct timeval tv; 1675c6096e5SCornelia Huck static const char hwclock_path[] = "/sbin/hwclock"; 1685c6096e5SCornelia Huck static int hwclock_available = -1; 1695c6096e5SCornelia Huck 1705c6096e5SCornelia Huck if (hwclock_available < 0) { 1715c6096e5SCornelia Huck hwclock_available = (access(hwclock_path, X_OK) == 0); 1725c6096e5SCornelia Huck } 1735c6096e5SCornelia Huck 1745c6096e5SCornelia Huck if (!hwclock_available) { 1755c6096e5SCornelia Huck error_setg(errp, QERR_UNSUPPORTED); 1765c6096e5SCornelia Huck return; 1775c6096e5SCornelia Huck } 178a1bca57fSLei Li 1792c958923SMichal Privoznik /* If user has passed a time, validate and set it. */ 1802c958923SMichal Privoznik if (has_time) { 18100d2f370SMarc-André Lureau GDate date = { 0, }; 18200d2f370SMarc-André Lureau 183a1bca57fSLei Li /* year-2038 will overflow in case time_t is 32bit */ 184a1bca57fSLei Li if (time_ns / 1000000000 != (time_t)(time_ns / 1000000000)) { 185a1bca57fSLei Li error_setg(errp, "Time %" PRId64 " is too large", time_ns); 186a1bca57fSLei Li return; 187a1bca57fSLei Li } 188a1bca57fSLei Li 189a1bca57fSLei Li tv.tv_sec = time_ns / 1000000000; 190a1bca57fSLei Li tv.tv_usec = (time_ns % 1000000000) / 1000; 19100d2f370SMarc-André Lureau g_date_set_time_t(&date, tv.tv_sec); 19200d2f370SMarc-André Lureau if (date.year < 1970 || date.year >= 2070) { 19300d2f370SMarc-André Lureau error_setg_errno(errp, errno, "Invalid time"); 19400d2f370SMarc-André Lureau return; 19500d2f370SMarc-André Lureau } 196a1bca57fSLei Li 197a1bca57fSLei Li ret = settimeofday(&tv, NULL); 198a1bca57fSLei Li if (ret < 0) { 199a1bca57fSLei Li error_setg_errno(errp, errno, "Failed to set time to guest"); 200a1bca57fSLei Li return; 201a1bca57fSLei Li } 2022c958923SMichal Privoznik } 203a1bca57fSLei Li 2042c958923SMichal Privoznik /* Now, if user has passed a time to set and the system time is set, we 2052c958923SMichal Privoznik * just need to synchronize the hardware clock. However, if no time was 2062c958923SMichal Privoznik * passed, user is requesting the opposite: set the system time from the 2071634df56SAmos Kong * hardware clock (RTC). */ 208a1bca57fSLei Li pid = fork(); 209a1bca57fSLei Li if (pid == 0) { 210a1bca57fSLei Li setsid(); 211a1bca57fSLei Li reopen_fd_to_null(0); 212a1bca57fSLei Li reopen_fd_to_null(1); 213a1bca57fSLei Li reopen_fd_to_null(2); 214a1bca57fSLei Li 2152c958923SMichal Privoznik /* Use '/sbin/hwclock -w' to set RTC from the system time, 2162c958923SMichal Privoznik * or '/sbin/hwclock -s' to set the system time from RTC. */ 217fcc41961SMarc-André Lureau execl(hwclock_path, "hwclock", has_time ? "-w" : "-s", NULL); 218a1bca57fSLei Li _exit(EXIT_FAILURE); 219a1bca57fSLei Li } else if (pid < 0) { 220a1bca57fSLei Li error_setg_errno(errp, errno, "failed to create child process"); 221a1bca57fSLei Li return; 222a1bca57fSLei Li } 223a1bca57fSLei Li 224a1bca57fSLei Li ga_wait_child(pid, &status, &local_err); 22584d18f06SMarkus Armbruster if (local_err) { 226a1bca57fSLei Li error_propagate(errp, local_err); 227a1bca57fSLei Li return; 228a1bca57fSLei Li } 229a1bca57fSLei Li 230a1bca57fSLei Li if (!WIFEXITED(status)) { 231a1bca57fSLei Li error_setg(errp, "child process has terminated abnormally"); 232a1bca57fSLei Li return; 233a1bca57fSLei Li } 234a1bca57fSLei Li 235a1bca57fSLei Li if (WEXITSTATUS(status)) { 236a1bca57fSLei Li error_setg(errp, "hwclock failed to set hardware clock to system time"); 237a1bca57fSLei Li return; 238a1bca57fSLei Li } 239a1bca57fSLei Li } 240a1bca57fSLei Li 241895b00f6SMarc-André Lureau typedef enum { 242895b00f6SMarc-André Lureau RW_STATE_NEW, 243895b00f6SMarc-André Lureau RW_STATE_READING, 244895b00f6SMarc-André Lureau RW_STATE_WRITING, 245895b00f6SMarc-André Lureau } RwState; 246895b00f6SMarc-André Lureau 2475d3586b8SPhilippe Mathieu-Daudé struct GuestFileHandle { 248c216e5adSMichael Roth uint64_t id; 249c216e5adSMichael Roth FILE *fh; 250895b00f6SMarc-André Lureau RwState state; 251c216e5adSMichael Roth QTAILQ_ENTRY(GuestFileHandle) next; 2525d3586b8SPhilippe Mathieu-Daudé }; 253c216e5adSMichael Roth 254c216e5adSMichael Roth static struct { 255c216e5adSMichael Roth QTAILQ_HEAD(, GuestFileHandle) filehandles; 256b4fe97c8SDenis V. Lunev } guest_file_state = { 257b4fe97c8SDenis V. Lunev .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 258b4fe97c8SDenis V. Lunev }; 259c216e5adSMichael Roth 26039097dafSMichael Roth static int64_t guest_file_handle_add(FILE *fh, Error **errp) 261c216e5adSMichael Roth { 262c216e5adSMichael Roth GuestFileHandle *gfh; 26339097dafSMichael Roth int64_t handle; 26439097dafSMichael Roth 26539097dafSMichael Roth handle = ga_get_fd_handle(ga_state, errp); 266a903f40cSMarkus Armbruster if (handle < 0) { 267a903f40cSMarkus Armbruster return -1; 26839097dafSMichael Roth } 269c216e5adSMichael Roth 270f3a06403SMarkus Armbruster gfh = g_new0(GuestFileHandle, 1); 27139097dafSMichael Roth gfh->id = handle; 272c216e5adSMichael Roth gfh->fh = fh; 273c216e5adSMichael Roth QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 27439097dafSMichael Roth 27539097dafSMichael Roth return handle; 276c216e5adSMichael Roth } 277c216e5adSMichael Roth 2785d3586b8SPhilippe Mathieu-Daudé GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 279c216e5adSMichael Roth { 280c216e5adSMichael Roth GuestFileHandle *gfh; 281c216e5adSMichael Roth 282c216e5adSMichael Roth QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) 283c216e5adSMichael Roth { 284c216e5adSMichael Roth if (gfh->id == id) { 285c216e5adSMichael Roth return gfh; 286c216e5adSMichael Roth } 287c216e5adSMichael Roth } 288c216e5adSMichael Roth 28977dbc81bSMarkus Armbruster error_setg(errp, "handle '%" PRId64 "' has not been found", id); 290c216e5adSMichael Roth return NULL; 291c216e5adSMichael Roth } 292c216e5adSMichael Roth 293c689b4f1SLaszlo Ersek typedef const char * const ccpc; 294c689b4f1SLaszlo Ersek 2958fe6bbcaSLaszlo Ersek #ifndef O_BINARY 2968fe6bbcaSLaszlo Ersek #define O_BINARY 0 2978fe6bbcaSLaszlo Ersek #endif 2988fe6bbcaSLaszlo Ersek 299c689b4f1SLaszlo Ersek /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */ 300c689b4f1SLaszlo Ersek static const struct { 301c689b4f1SLaszlo Ersek ccpc *forms; 302c689b4f1SLaszlo Ersek int oflag_base; 303c689b4f1SLaszlo Ersek } guest_file_open_modes[] = { 3048fe6bbcaSLaszlo Ersek { (ccpc[]){ "r", NULL }, O_RDONLY }, 3058fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb", NULL }, O_RDONLY | O_BINARY }, 3068fe6bbcaSLaszlo Ersek { (ccpc[]){ "w", NULL }, O_WRONLY | O_CREAT | O_TRUNC }, 3078fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb", NULL }, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY }, 3088fe6bbcaSLaszlo Ersek { (ccpc[]){ "a", NULL }, O_WRONLY | O_CREAT | O_APPEND }, 3098fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab", NULL }, O_WRONLY | O_CREAT | O_APPEND | O_BINARY }, 3108fe6bbcaSLaszlo Ersek { (ccpc[]){ "r+", NULL }, O_RDWR }, 3118fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb+", "r+b", NULL }, O_RDWR | O_BINARY }, 3128fe6bbcaSLaszlo Ersek { (ccpc[]){ "w+", NULL }, O_RDWR | O_CREAT | O_TRUNC }, 3138fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb+", "w+b", NULL }, O_RDWR | O_CREAT | O_TRUNC | O_BINARY }, 3148fe6bbcaSLaszlo Ersek { (ccpc[]){ "a+", NULL }, O_RDWR | O_CREAT | O_APPEND }, 3158fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab+", "a+b", NULL }, O_RDWR | O_CREAT | O_APPEND | O_BINARY } 316c689b4f1SLaszlo Ersek }; 317c689b4f1SLaszlo Ersek 318c689b4f1SLaszlo Ersek static int 31977dbc81bSMarkus Armbruster find_open_flag(const char *mode_str, Error **errp) 320c689b4f1SLaszlo Ersek { 321c689b4f1SLaszlo Ersek unsigned mode; 322c689b4f1SLaszlo Ersek 323c689b4f1SLaszlo Ersek for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 324c689b4f1SLaszlo Ersek ccpc *form; 325c689b4f1SLaszlo Ersek 326c689b4f1SLaszlo Ersek form = guest_file_open_modes[mode].forms; 327c689b4f1SLaszlo Ersek while (*form != NULL && strcmp(*form, mode_str) != 0) { 328c689b4f1SLaszlo Ersek ++form; 329c689b4f1SLaszlo Ersek } 330c689b4f1SLaszlo Ersek if (*form != NULL) { 331c689b4f1SLaszlo Ersek break; 332c689b4f1SLaszlo Ersek } 333c689b4f1SLaszlo Ersek } 334c689b4f1SLaszlo Ersek 335c689b4f1SLaszlo Ersek if (mode == ARRAY_SIZE(guest_file_open_modes)) { 33677dbc81bSMarkus Armbruster error_setg(errp, "invalid file open mode '%s'", mode_str); 337c689b4f1SLaszlo Ersek return -1; 338c689b4f1SLaszlo Ersek } 339c689b4f1SLaszlo Ersek return guest_file_open_modes[mode].oflag_base | O_NOCTTY | O_NONBLOCK; 340c689b4f1SLaszlo Ersek } 341c689b4f1SLaszlo Ersek 342c689b4f1SLaszlo Ersek #define DEFAULT_NEW_FILE_MODE (S_IRUSR | S_IWUSR | \ 343c689b4f1SLaszlo Ersek S_IRGRP | S_IWGRP | \ 344c689b4f1SLaszlo Ersek S_IROTH | S_IWOTH) 345c689b4f1SLaszlo Ersek 346c689b4f1SLaszlo Ersek static FILE * 34777dbc81bSMarkus Armbruster safe_open_or_create(const char *path, const char *mode, Error **errp) 348c689b4f1SLaszlo Ersek { 349c689b4f1SLaszlo Ersek int oflag; 35069f56c14SMarc-André Lureau int fd = -1; 35169f56c14SMarc-André Lureau FILE *f = NULL; 352c689b4f1SLaszlo Ersek 35369f56c14SMarc-André Lureau oflag = find_open_flag(mode, errp); 35469f56c14SMarc-André Lureau if (oflag < 0) { 35569f56c14SMarc-André Lureau goto end; 35669f56c14SMarc-André Lureau } 357c689b4f1SLaszlo Ersek 358c689b4f1SLaszlo Ersek /* If the caller wants / allows creation of a new file, we implement it 359c689b4f1SLaszlo Ersek * with a two step process: open() + (open() / fchmod()). 360c689b4f1SLaszlo Ersek * 361c689b4f1SLaszlo Ersek * First we insist on creating the file exclusively as a new file. If 362c689b4f1SLaszlo Ersek * that succeeds, we're free to set any file-mode bits on it. (The 363c689b4f1SLaszlo Ersek * motivation is that we want to set those file-mode bits independently 364c689b4f1SLaszlo Ersek * of the current umask.) 365c689b4f1SLaszlo Ersek * 366c689b4f1SLaszlo Ersek * If the exclusive creation fails because the file already exists 367c689b4f1SLaszlo Ersek * (EEXIST is not possible for any other reason), we just attempt to 368c689b4f1SLaszlo Ersek * open the file, but in this case we won't be allowed to change the 369c689b4f1SLaszlo Ersek * file-mode bits on the preexistent file. 370c689b4f1SLaszlo Ersek * 371c689b4f1SLaszlo Ersek * The pathname should never disappear between the two open()s in 372c689b4f1SLaszlo Ersek * practice. If it happens, then someone very likely tried to race us. 373c689b4f1SLaszlo Ersek * In this case just go ahead and report the ENOENT from the second 374c689b4f1SLaszlo Ersek * open() to the caller. 375c689b4f1SLaszlo Ersek * 376c689b4f1SLaszlo Ersek * If the caller wants to open a preexistent file, then the first 377c689b4f1SLaszlo Ersek * open() is decisive and its third argument is ignored, and the second 378c689b4f1SLaszlo Ersek * open() and the fchmod() are never called. 379c689b4f1SLaszlo Ersek */ 3801a89a17bSMarc-André Lureau fd = qga_open_cloexec(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0); 381c689b4f1SLaszlo Ersek if (fd == -1 && errno == EEXIST) { 382c689b4f1SLaszlo Ersek oflag &= ~(unsigned)O_CREAT; 3831a89a17bSMarc-André Lureau fd = qga_open_cloexec(path, oflag, 0); 384c689b4f1SLaszlo Ersek } 385c689b4f1SLaszlo Ersek if (fd == -1) { 38669f56c14SMarc-André Lureau error_setg_errno(errp, errno, 38769f56c14SMarc-André Lureau "failed to open file '%s' (mode: '%s')", 38869f56c14SMarc-André Lureau path, mode); 38969f56c14SMarc-André Lureau goto end; 39069f56c14SMarc-André Lureau } 39169f56c14SMarc-André Lureau 392c689b4f1SLaszlo Ersek if ((oflag & O_CREAT) && fchmod(fd, DEFAULT_NEW_FILE_MODE) == -1) { 39369f56c14SMarc-André Lureau error_setg_errno(errp, errno, "failed to set permission " 394c689b4f1SLaszlo Ersek "0%03o on new file '%s' (mode: '%s')", 395c689b4f1SLaszlo Ersek (unsigned)DEFAULT_NEW_FILE_MODE, path, mode); 39669f56c14SMarc-André Lureau goto end; 39769f56c14SMarc-André Lureau } 398c689b4f1SLaszlo Ersek 399c689b4f1SLaszlo Ersek f = fdopen(fd, mode); 400c689b4f1SLaszlo Ersek if (f == NULL) { 40169f56c14SMarc-André Lureau error_setg_errno(errp, errno, "failed to associate stdio stream with " 40269f56c14SMarc-André Lureau "file descriptor %d, file '%s' (mode: '%s')", 40369f56c14SMarc-André Lureau fd, path, mode); 404c689b4f1SLaszlo Ersek } 405c689b4f1SLaszlo Ersek 40669f56c14SMarc-André Lureau end: 40769f56c14SMarc-André Lureau if (f == NULL && fd != -1) { 408c689b4f1SLaszlo Ersek close(fd); 4092b720018SLaszlo Ersek if (oflag & O_CREAT) { 4102b720018SLaszlo Ersek unlink(path); 4112b720018SLaszlo Ersek } 412c689b4f1SLaszlo Ersek } 41369f56c14SMarc-André Lureau return f; 414c689b4f1SLaszlo Ersek } 415c689b4f1SLaszlo Ersek 41677dbc81bSMarkus Armbruster int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, 41777dbc81bSMarkus Armbruster Error **errp) 418c216e5adSMichael Roth { 419c216e5adSMichael Roth FILE *fh; 420c689b4f1SLaszlo Ersek Error *local_err = NULL; 42185b6f6f5SSimon Zolin int64_t handle; 422c216e5adSMichael Roth 423c216e5adSMichael Roth if (!has_mode) { 424c216e5adSMichael Roth mode = "r"; 425c216e5adSMichael Roth } 426c216e5adSMichael Roth slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 427c689b4f1SLaszlo Ersek fh = safe_open_or_create(path, mode, &local_err); 428c689b4f1SLaszlo Ersek if (local_err != NULL) { 42977dbc81bSMarkus Armbruster error_propagate(errp, local_err); 430c216e5adSMichael Roth return -1; 431c216e5adSMichael Roth } 432c216e5adSMichael Roth 433c216e5adSMichael Roth /* set fd non-blocking to avoid common use cases (like reading from a 434c216e5adSMichael Roth * named pipe) from hanging the agent 435c216e5adSMichael Roth */ 436b0a8f9adSMarc-André Lureau if (!g_unix_set_fd_nonblocking(fileno(fh), true, NULL)) { 437b0a8f9adSMarc-André Lureau fclose(fh); 438b0a8f9adSMarc-André Lureau error_setg_errno(errp, errno, "Failed to set FD nonblocking"); 439b0a8f9adSMarc-André Lureau return -1; 440b0a8f9adSMarc-André Lureau } 441c216e5adSMichael Roth 44277dbc81bSMarkus Armbruster handle = guest_file_handle_add(fh, errp); 443a903f40cSMarkus Armbruster if (handle < 0) { 44439097dafSMichael Roth fclose(fh); 44539097dafSMichael Roth return -1; 44639097dafSMichael Roth } 44739097dafSMichael Roth 448d607a523SStefan Weil slog("guest-file-open, handle: %" PRId64, handle); 44939097dafSMichael Roth return handle; 450c216e5adSMichael Roth } 451c216e5adSMichael Roth 45277dbc81bSMarkus Armbruster void qmp_guest_file_close(int64_t handle, Error **errp) 453c216e5adSMichael Roth { 45477dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 455c216e5adSMichael Roth int ret; 456c216e5adSMichael Roth 457d607a523SStefan Weil slog("guest-file-close called, handle: %" PRId64, handle); 458c216e5adSMichael Roth if (!gfh) { 459c216e5adSMichael Roth return; 460c216e5adSMichael Roth } 461c216e5adSMichael Roth 462c216e5adSMichael Roth ret = fclose(gfh->fh); 4633ac4b7c5SLuiz Capitulino if (ret == EOF) { 46477dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to close handle"); 465c216e5adSMichael Roth return; 466c216e5adSMichael Roth } 467c216e5adSMichael Roth 468c216e5adSMichael Roth QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 469c216e5adSMichael Roth g_free(gfh); 470c216e5adSMichael Roth } 471c216e5adSMichael Roth 472ead83a13SPhilippe Mathieu-Daudé GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 47377dbc81bSMarkus Armbruster int64_t count, Error **errp) 474c216e5adSMichael Roth { 475c216e5adSMichael Roth GuestFileRead *read_data = NULL; 476c216e5adSMichael Roth guchar *buf; 477ead83a13SPhilippe Mathieu-Daudé FILE *fh = gfh->fh; 478c216e5adSMichael Roth size_t read_count; 479c216e5adSMichael Roth 480895b00f6SMarc-André Lureau /* explicitly flush when switching from writing to reading */ 481895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_WRITING) { 482895b00f6SMarc-André Lureau int ret = fflush(fh); 483895b00f6SMarc-André Lureau if (ret == EOF) { 484895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to flush file"); 485895b00f6SMarc-André Lureau return NULL; 486895b00f6SMarc-André Lureau } 487895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 488895b00f6SMarc-André Lureau } 489895b00f6SMarc-André Lureau 490c216e5adSMichael Roth buf = g_malloc0(count + 1); 491c216e5adSMichael Roth read_count = fread(buf, 1, count, fh); 492c216e5adSMichael Roth if (ferror(fh)) { 49377dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to read file"); 494c216e5adSMichael Roth } else { 495c216e5adSMichael Roth buf[read_count] = 0; 496f3a06403SMarkus Armbruster read_data = g_new0(GuestFileRead, 1); 497c216e5adSMichael Roth read_data->count = read_count; 498c216e5adSMichael Roth read_data->eof = feof(fh); 499c216e5adSMichael Roth if (read_count) { 500c216e5adSMichael Roth read_data->buf_b64 = g_base64_encode(buf, read_count); 501c216e5adSMichael Roth } 502895b00f6SMarc-André Lureau gfh->state = RW_STATE_READING; 503c216e5adSMichael Roth } 504c216e5adSMichael Roth g_free(buf); 505c216e5adSMichael Roth clearerr(fh); 506c216e5adSMichael Roth 507c216e5adSMichael Roth return read_data; 508c216e5adSMichael Roth } 509c216e5adSMichael Roth 510c216e5adSMichael Roth GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 51177dbc81bSMarkus Armbruster bool has_count, int64_t count, 51277dbc81bSMarkus Armbruster Error **errp) 513c216e5adSMichael Roth { 514c216e5adSMichael Roth GuestFileWrite *write_data = NULL; 515c216e5adSMichael Roth guchar *buf; 516c216e5adSMichael Roth gsize buf_len; 517c216e5adSMichael Roth int write_count; 51877dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 519c216e5adSMichael Roth FILE *fh; 520c216e5adSMichael Roth 521c216e5adSMichael Roth if (!gfh) { 522c216e5adSMichael Roth return NULL; 523c216e5adSMichael Roth } 524c216e5adSMichael Roth 525c216e5adSMichael Roth fh = gfh->fh; 526895b00f6SMarc-André Lureau 527895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_READING) { 528895b00f6SMarc-André Lureau int ret = fseek(fh, 0, SEEK_CUR); 529895b00f6SMarc-André Lureau if (ret == -1) { 530895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to seek file"); 531895b00f6SMarc-André Lureau return NULL; 532895b00f6SMarc-André Lureau } 533895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 534895b00f6SMarc-André Lureau } 535895b00f6SMarc-André Lureau 536920639caSDaniel P. Berrange buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 537920639caSDaniel P. Berrange if (!buf) { 538920639caSDaniel P. Berrange return NULL; 539920639caSDaniel P. Berrange } 540c216e5adSMichael Roth 541c216e5adSMichael Roth if (!has_count) { 542c216e5adSMichael Roth count = buf_len; 543c216e5adSMichael Roth } else if (count < 0 || count > buf_len) { 54477dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 545db3edb66SLuiz Capitulino count); 546c216e5adSMichael Roth g_free(buf); 547c216e5adSMichael Roth return NULL; 548c216e5adSMichael Roth } 549c216e5adSMichael Roth 550c216e5adSMichael Roth write_count = fwrite(buf, 1, count, fh); 551c216e5adSMichael Roth if (ferror(fh)) { 55277dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to write to file"); 553d607a523SStefan Weil slog("guest-file-write failed, handle: %" PRId64, handle); 554c216e5adSMichael Roth } else { 555f3a06403SMarkus Armbruster write_data = g_new0(GuestFileWrite, 1); 556c216e5adSMichael Roth write_data->count = write_count; 557c216e5adSMichael Roth write_data->eof = feof(fh); 558895b00f6SMarc-André Lureau gfh->state = RW_STATE_WRITING; 559c216e5adSMichael Roth } 560c216e5adSMichael Roth g_free(buf); 561c216e5adSMichael Roth clearerr(fh); 562c216e5adSMichael Roth 563c216e5adSMichael Roth return write_data; 564c216e5adSMichael Roth } 565c216e5adSMichael Roth 566c216e5adSMichael Roth struct GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 5670b4b4938SEric Blake GuestFileWhence *whence_code, 5680b4b4938SEric Blake Error **errp) 569c216e5adSMichael Roth { 57077dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 571c216e5adSMichael Roth GuestFileSeek *seek_data = NULL; 572c216e5adSMichael Roth FILE *fh; 573c216e5adSMichael Roth int ret; 5740a982b1bSEric Blake int whence; 5750b4b4938SEric Blake Error *err = NULL; 576c216e5adSMichael Roth 577c216e5adSMichael Roth if (!gfh) { 578c216e5adSMichael Roth return NULL; 579c216e5adSMichael Roth } 580c216e5adSMichael Roth 5810a982b1bSEric Blake /* We stupidly exposed 'whence':'int' in our qapi */ 5820b4b4938SEric Blake whence = ga_parse_whence(whence_code, &err); 5830b4b4938SEric Blake if (err) { 5840b4b4938SEric Blake error_propagate(errp, err); 5850a982b1bSEric Blake return NULL; 5860a982b1bSEric Blake } 5870a982b1bSEric Blake 588c216e5adSMichael Roth fh = gfh->fh; 589c216e5adSMichael Roth ret = fseek(fh, offset, whence); 590c216e5adSMichael Roth if (ret == -1) { 59177dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to seek file"); 592895b00f6SMarc-André Lureau if (errno == ESPIPE) { 593895b00f6SMarc-André Lureau /* file is non-seekable, stdio shouldn't be buffering anyways */ 594895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 595895b00f6SMarc-André Lureau } 596c216e5adSMichael Roth } else { 59710b7c5ddSMarkus Armbruster seek_data = g_new0(GuestFileSeek, 1); 598c216e5adSMichael Roth seek_data->position = ftell(fh); 599c216e5adSMichael Roth seek_data->eof = feof(fh); 600895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 601c216e5adSMichael Roth } 602c216e5adSMichael Roth clearerr(fh); 603c216e5adSMichael Roth 604c216e5adSMichael Roth return seek_data; 605c216e5adSMichael Roth } 606c216e5adSMichael Roth 60777dbc81bSMarkus Armbruster void qmp_guest_file_flush(int64_t handle, Error **errp) 608c216e5adSMichael Roth { 60977dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 610c216e5adSMichael Roth FILE *fh; 611c216e5adSMichael Roth int ret; 612c216e5adSMichael Roth 613c216e5adSMichael Roth if (!gfh) { 614c216e5adSMichael Roth return; 615c216e5adSMichael Roth } 616c216e5adSMichael Roth 617c216e5adSMichael Roth fh = gfh->fh; 618c216e5adSMichael Roth ret = fflush(fh); 619c216e5adSMichael Roth if (ret == EOF) { 62077dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to flush file"); 621895b00f6SMarc-André Lureau } else { 622895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 623c216e5adSMichael Roth } 624c216e5adSMichael Roth } 625c216e5adSMichael Roth 626e72c3f2eSMichael Roth /* linux-specific implementations. avoid this if at all possible. */ 627e72c3f2eSMichael Roth #if defined(__linux__) 628e72c3f2eSMichael Roth 629eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) 630*518b0d80SAlexander Ivanov void free_fs_mount_list(FsMountList *mounts) 631c216e5adSMichael Roth { 632af02203fSPaolo Bonzini FsMount *mount, *temp; 633c216e5adSMichael Roth 6349e8aded4SMichael Roth if (!mounts) { 6359e8aded4SMichael Roth return; 6369e8aded4SMichael Roth } 6379e8aded4SMichael Roth 6389e8aded4SMichael Roth QTAILQ_FOREACH_SAFE(mount, mounts, next, temp) { 6399e8aded4SMichael Roth QTAILQ_REMOVE(mounts, mount, next); 640c216e5adSMichael Roth g_free(mount->dirname); 641c216e5adSMichael Roth g_free(mount->devtype); 642c216e5adSMichael Roth g_free(mount); 643c216e5adSMichael Roth } 6449e8aded4SMichael Roth } 645eab5fd59SPaolo Bonzini #endif 646eab5fd59SPaolo Bonzini 647eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) 648c216e5adSMichael Roth 64946d4c572STomoki Sekiyama static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) 65046d4c572STomoki Sekiyama { 65146d4c572STomoki Sekiyama char *path; 65246d4c572STomoki Sekiyama char *dpath; 65346d4c572STomoki Sekiyama char *driver = NULL; 65446d4c572STomoki Sekiyama char buf[PATH_MAX]; 65546d4c572STomoki Sekiyama ssize_t len; 65646d4c572STomoki Sekiyama 65746d4c572STomoki Sekiyama path = g_strndup(syspath, pathlen); 65846d4c572STomoki Sekiyama dpath = g_strdup_printf("%s/driver", path); 65946d4c572STomoki Sekiyama len = readlink(dpath, buf, sizeof(buf) - 1); 66046d4c572STomoki Sekiyama if (len != -1) { 66146d4c572STomoki Sekiyama buf[len] = 0; 6623e015d81SJulia Suvorova driver = g_path_get_basename(buf); 66346d4c572STomoki Sekiyama } 66446d4c572STomoki Sekiyama g_free(dpath); 66546d4c572STomoki Sekiyama g_free(path); 66646d4c572STomoki Sekiyama return driver; 66746d4c572STomoki Sekiyama } 66846d4c572STomoki Sekiyama 66946d4c572STomoki Sekiyama static int compare_uint(const void *_a, const void *_b) 67046d4c572STomoki Sekiyama { 67146d4c572STomoki Sekiyama unsigned int a = *(unsigned int *)_a; 67246d4c572STomoki Sekiyama unsigned int b = *(unsigned int *)_b; 67346d4c572STomoki Sekiyama 67446d4c572STomoki Sekiyama return a < b ? -1 : a > b ? 1 : 0; 67546d4c572STomoki Sekiyama } 67646d4c572STomoki Sekiyama 67746d4c572STomoki Sekiyama /* Walk the specified sysfs and build a sorted list of host or ata numbers */ 67846d4c572STomoki Sekiyama static int build_hosts(char const *syspath, char const *host, bool ata, 67946d4c572STomoki Sekiyama unsigned int *hosts, int hosts_max, Error **errp) 68046d4c572STomoki Sekiyama { 68146d4c572STomoki Sekiyama char *path; 68246d4c572STomoki Sekiyama DIR *dir; 68346d4c572STomoki Sekiyama struct dirent *entry; 68446d4c572STomoki Sekiyama int i = 0; 68546d4c572STomoki Sekiyama 68646d4c572STomoki Sekiyama path = g_strndup(syspath, host - syspath); 68746d4c572STomoki Sekiyama dir = opendir(path); 68846d4c572STomoki Sekiyama if (!dir) { 68946d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", path); 69046d4c572STomoki Sekiyama g_free(path); 69146d4c572STomoki Sekiyama return -1; 69246d4c572STomoki Sekiyama } 69346d4c572STomoki Sekiyama 69446d4c572STomoki Sekiyama while (i < hosts_max) { 69546d4c572STomoki Sekiyama entry = readdir(dir); 69646d4c572STomoki Sekiyama if (!entry) { 69746d4c572STomoki Sekiyama break; 69846d4c572STomoki Sekiyama } 69946d4c572STomoki Sekiyama if (ata && sscanf(entry->d_name, "ata%d", hosts + i) == 1) { 70046d4c572STomoki Sekiyama ++i; 70146d4c572STomoki Sekiyama } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) == 1) { 70246d4c572STomoki Sekiyama ++i; 70346d4c572STomoki Sekiyama } 70446d4c572STomoki Sekiyama } 70546d4c572STomoki Sekiyama 70646d4c572STomoki Sekiyama qsort(hosts, i, sizeof(hosts[0]), compare_uint); 70746d4c572STomoki Sekiyama 70846d4c572STomoki Sekiyama g_free(path); 70946d4c572STomoki Sekiyama closedir(dir); 71046d4c572STomoki Sekiyama return i; 71146d4c572STomoki Sekiyama } 71246d4c572STomoki Sekiyama 713d9fe4f0fSThomas Huth /* 714d9fe4f0fSThomas Huth * Store disk device info for devices on the PCI bus. 715d9fe4f0fSThomas Huth * Returns true if information has been stored, or false for failure. 716d9fe4f0fSThomas Huth */ 717d9fe4f0fSThomas Huth static bool build_guest_fsinfo_for_pci_dev(char const *syspath, 718d9fe4f0fSThomas Huth GuestDiskAddress *disk, 71946d4c572STomoki Sekiyama Error **errp) 72046d4c572STomoki Sekiyama { 72146d4c572STomoki Sekiyama unsigned int pci[4], host, hosts[8], tgt[3]; 72246d4c572STomoki Sekiyama int i, nhosts = 0, pcilen; 723d9fe4f0fSThomas Huth GuestPCIAddress *pciaddr = disk->pci_controller; 72446d4c572STomoki Sekiyama bool has_ata = false, has_host = false, has_tgt = false; 72546d4c572STomoki Sekiyama char *p, *q, *driver = NULL; 726d9fe4f0fSThomas Huth bool ret = false; 72746d4c572STomoki Sekiyama 72846d4c572STomoki Sekiyama p = strstr(syspath, "/devices/pci"); 72946d4c572STomoki Sekiyama if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", 73046d4c572STomoki Sekiyama pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { 731743c71d0SMarc-André Lureau g_debug("only pci device is supported: sysfs path '%s'", syspath); 732d9fe4f0fSThomas Huth return false; 73346d4c572STomoki Sekiyama } 73446d4c572STomoki Sekiyama 735743c71d0SMarc-André Lureau p += 12 + pcilen; 736743c71d0SMarc-André Lureau while (true) { 737743c71d0SMarc-André Lureau driver = get_pci_driver(syspath, p - syspath, errp); 738743c71d0SMarc-André Lureau if (driver && (g_str_equal(driver, "ata_piix") || 739743c71d0SMarc-André Lureau g_str_equal(driver, "sym53c8xx") || 740743c71d0SMarc-André Lureau g_str_equal(driver, "virtio-pci") || 741d48f61c8Szhenwei pi g_str_equal(driver, "ahci") || 742d48f61c8Szhenwei pi g_str_equal(driver, "nvme"))) { 743743c71d0SMarc-André Lureau break; 744743c71d0SMarc-André Lureau } 745743c71d0SMarc-André Lureau 746bb23a736SMarc-André Lureau g_free(driver); 747743c71d0SMarc-André Lureau if (sscanf(p, "/%x:%x:%x.%x%n", 748743c71d0SMarc-André Lureau pci, pci + 1, pci + 2, pci + 3, &pcilen) == 4) { 749743c71d0SMarc-André Lureau p += pcilen; 750743c71d0SMarc-André Lureau continue; 751743c71d0SMarc-André Lureau } 752743c71d0SMarc-André Lureau 753743c71d0SMarc-André Lureau g_debug("unsupported driver or sysfs path '%s'", syspath); 754d9fe4f0fSThomas Huth return false; 75546d4c572STomoki Sekiyama } 75646d4c572STomoki Sekiyama 75746d4c572STomoki Sekiyama p = strstr(syspath, "/target"); 75846d4c572STomoki Sekiyama if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 75946d4c572STomoki Sekiyama tgt, tgt + 1, tgt + 2) == 3) { 76046d4c572STomoki Sekiyama has_tgt = true; 76146d4c572STomoki Sekiyama } 76246d4c572STomoki Sekiyama 76346d4c572STomoki Sekiyama p = strstr(syspath, "/ata"); 76446d4c572STomoki Sekiyama if (p) { 76546d4c572STomoki Sekiyama q = p + 4; 76646d4c572STomoki Sekiyama has_ata = true; 76746d4c572STomoki Sekiyama } else { 76846d4c572STomoki Sekiyama p = strstr(syspath, "/host"); 76946d4c572STomoki Sekiyama q = p + 5; 77046d4c572STomoki Sekiyama } 77146d4c572STomoki Sekiyama if (p && sscanf(q, "%u", &host) == 1) { 77246d4c572STomoki Sekiyama has_host = true; 77346d4c572STomoki Sekiyama nhosts = build_hosts(syspath, p, has_ata, hosts, 77401a6df1bSPhilippe Mathieu-Daudé ARRAY_SIZE(hosts), errp); 77546d4c572STomoki Sekiyama if (nhosts < 0) { 77646d4c572STomoki Sekiyama goto cleanup; 77746d4c572STomoki Sekiyama } 77846d4c572STomoki Sekiyama } 77946d4c572STomoki Sekiyama 78046d4c572STomoki Sekiyama pciaddr->domain = pci[0]; 78146d4c572STomoki Sekiyama pciaddr->bus = pci[1]; 78246d4c572STomoki Sekiyama pciaddr->slot = pci[2]; 78346d4c572STomoki Sekiyama pciaddr->function = pci[3]; 78446d4c572STomoki Sekiyama 78546d4c572STomoki Sekiyama if (strcmp(driver, "ata_piix") == 0) { 78646d4c572STomoki Sekiyama /* a host per ide bus, target*:0:<unit>:0 */ 78746d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 78846d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 78946d4c572STomoki Sekiyama goto cleanup; 79046d4c572STomoki Sekiyama } 79146d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 79246d4c572STomoki Sekiyama if (host == hosts[i]) { 79346d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_IDE; 79446d4c572STomoki Sekiyama disk->bus = i; 79546d4c572STomoki Sekiyama disk->unit = tgt[1]; 79646d4c572STomoki Sekiyama break; 79746d4c572STomoki Sekiyama } 79846d4c572STomoki Sekiyama } 79946d4c572STomoki Sekiyama if (i >= nhosts) { 80046d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 80146d4c572STomoki Sekiyama goto cleanup; 80246d4c572STomoki Sekiyama } 80346d4c572STomoki Sekiyama } else if (strcmp(driver, "sym53c8xx") == 0) { 80446d4c572STomoki Sekiyama /* scsi(LSI Logic): target*:0:<unit>:0 */ 80546d4c572STomoki Sekiyama if (!has_tgt) { 80646d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 80746d4c572STomoki Sekiyama goto cleanup; 80846d4c572STomoki Sekiyama } 80946d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 81046d4c572STomoki Sekiyama disk->unit = tgt[1]; 81146d4c572STomoki Sekiyama } else if (strcmp(driver, "virtio-pci") == 0) { 81246d4c572STomoki Sekiyama if (has_tgt) { 81346d4c572STomoki Sekiyama /* virtio-scsi: target*:0:0:<unit> */ 81446d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 81546d4c572STomoki Sekiyama disk->unit = tgt[2]; 81646d4c572STomoki Sekiyama } else { 81746d4c572STomoki Sekiyama /* virtio-blk: 1 disk per 1 device */ 81846d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 81946d4c572STomoki Sekiyama } 82046d4c572STomoki Sekiyama } else if (strcmp(driver, "ahci") == 0) { 82146d4c572STomoki Sekiyama /* ahci: 1 host per 1 unit */ 82246d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 82346d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 82446d4c572STomoki Sekiyama goto cleanup; 82546d4c572STomoki Sekiyama } 82646d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 82746d4c572STomoki Sekiyama if (host == hosts[i]) { 82846d4c572STomoki Sekiyama disk->unit = i; 82946d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SATA; 83046d4c572STomoki Sekiyama break; 83146d4c572STomoki Sekiyama } 83246d4c572STomoki Sekiyama } 83346d4c572STomoki Sekiyama if (i >= nhosts) { 83446d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 83546d4c572STomoki Sekiyama goto cleanup; 83646d4c572STomoki Sekiyama } 837d48f61c8Szhenwei pi } else if (strcmp(driver, "nvme") == 0) { 838d48f61c8Szhenwei pi disk->bus_type = GUEST_DISK_BUS_TYPE_NVME; 83946d4c572STomoki Sekiyama } else { 84046d4c572STomoki Sekiyama g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); 84146d4c572STomoki Sekiyama goto cleanup; 84246d4c572STomoki Sekiyama } 84346d4c572STomoki Sekiyama 844d9fe4f0fSThomas Huth ret = true; 84546d4c572STomoki Sekiyama 84646d4c572STomoki Sekiyama cleanup: 84746d4c572STomoki Sekiyama g_free(driver); 848d9fe4f0fSThomas Huth return ret; 849d9fe4f0fSThomas Huth } 850d9fe4f0fSThomas Huth 85123843c12SThomas Huth /* 85223843c12SThomas Huth * Store disk device info for non-PCI virtio devices (for example s390x 85323843c12SThomas Huth * channel I/O devices). Returns true if information has been stored, or 85423843c12SThomas Huth * false for failure. 85523843c12SThomas Huth */ 85623843c12SThomas Huth static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath, 85723843c12SThomas Huth GuestDiskAddress *disk, 85823843c12SThomas Huth Error **errp) 85923843c12SThomas Huth { 86023843c12SThomas Huth unsigned int tgt[3]; 86123843c12SThomas Huth char *p; 86223843c12SThomas Huth 86323843c12SThomas Huth if (!strstr(syspath, "/virtio") || !strstr(syspath, "/block")) { 86423843c12SThomas Huth g_debug("Unsupported virtio device '%s'", syspath); 86523843c12SThomas Huth return false; 86623843c12SThomas Huth } 86723843c12SThomas Huth 86823843c12SThomas Huth p = strstr(syspath, "/target"); 86923843c12SThomas Huth if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 87023843c12SThomas Huth &tgt[0], &tgt[1], &tgt[2]) == 3) { 87123843c12SThomas Huth /* virtio-scsi: target*:0:<target>:<unit> */ 87223843c12SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 87323843c12SThomas Huth disk->bus = tgt[0]; 87423843c12SThomas Huth disk->target = tgt[1]; 87523843c12SThomas Huth disk->unit = tgt[2]; 87623843c12SThomas Huth } else { 87723843c12SThomas Huth /* virtio-blk: 1 disk per 1 device */ 87823843c12SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 87923843c12SThomas Huth } 88023843c12SThomas Huth 88123843c12SThomas Huth return true; 88223843c12SThomas Huth } 88323843c12SThomas Huth 8845b723a5dSThomas Huth /* 8855b723a5dSThomas Huth * Store disk device info for CCW devices (s390x channel I/O devices). 8865b723a5dSThomas Huth * Returns true if information has been stored, or false for failure. 8875b723a5dSThomas Huth */ 8885b723a5dSThomas Huth static bool build_guest_fsinfo_for_ccw_dev(char const *syspath, 8895b723a5dSThomas Huth GuestDiskAddress *disk, 8905b723a5dSThomas Huth Error **errp) 8915b723a5dSThomas Huth { 8925b723a5dSThomas Huth unsigned int cssid, ssid, subchno, devno; 8935b723a5dSThomas Huth char *p; 8945b723a5dSThomas Huth 8955b723a5dSThomas Huth p = strstr(syspath, "/devices/css"); 8965b723a5dSThomas Huth if (!p || sscanf(p + 12, "%*x/%x.%x.%x/%*x.%*x.%x/", 8975b723a5dSThomas Huth &cssid, &ssid, &subchno, &devno) < 4) { 8985b723a5dSThomas Huth g_debug("could not parse ccw device sysfs path: %s", syspath); 8995b723a5dSThomas Huth return false; 9005b723a5dSThomas Huth } 9015b723a5dSThomas Huth 9025b723a5dSThomas Huth disk->has_ccw_address = true; 9035b723a5dSThomas Huth disk->ccw_address = g_new0(GuestCCWAddress, 1); 9045b723a5dSThomas Huth disk->ccw_address->cssid = cssid; 9055b723a5dSThomas Huth disk->ccw_address->ssid = ssid; 9065b723a5dSThomas Huth disk->ccw_address->subchno = subchno; 9075b723a5dSThomas Huth disk->ccw_address->devno = devno; 9085b723a5dSThomas Huth 9095b723a5dSThomas Huth if (strstr(p, "/virtio")) { 9105b723a5dSThomas Huth build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); 9115b723a5dSThomas Huth } 9125b723a5dSThomas Huth 9135b723a5dSThomas Huth return true; 9145b723a5dSThomas Huth } 9155b723a5dSThomas Huth 916d9fe4f0fSThomas Huth /* Store disk device info specified by @sysfs into @fs */ 917d9fe4f0fSThomas Huth static void build_guest_fsinfo_for_real_device(char const *syspath, 918d9fe4f0fSThomas Huth GuestFilesystemInfo *fs, 919d9fe4f0fSThomas Huth Error **errp) 920d9fe4f0fSThomas Huth { 921d9fe4f0fSThomas Huth GuestDiskAddress *disk; 922d9fe4f0fSThomas Huth GuestPCIAddress *pciaddr; 923d9fe4f0fSThomas Huth bool has_hwinf; 92443dadc43SThomas Huth #ifdef CONFIG_LIBUDEV 92543dadc43SThomas Huth struct udev *udev = NULL; 92643dadc43SThomas Huth struct udev_device *udevice = NULL; 92743dadc43SThomas Huth #endif 928d9fe4f0fSThomas Huth 929d9fe4f0fSThomas Huth pciaddr = g_new0(GuestPCIAddress, 1); 93043dadc43SThomas Huth pciaddr->domain = -1; /* -1 means field is invalid */ 93143dadc43SThomas Huth pciaddr->bus = -1; 93243dadc43SThomas Huth pciaddr->slot = -1; 93343dadc43SThomas Huth pciaddr->function = -1; 934d9fe4f0fSThomas Huth 935d9fe4f0fSThomas Huth disk = g_new0(GuestDiskAddress, 1); 936d9fe4f0fSThomas Huth disk->pci_controller = pciaddr; 93743dadc43SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_UNKNOWN; 938d9fe4f0fSThomas Huth 93943dadc43SThomas Huth #ifdef CONFIG_LIBUDEV 94043dadc43SThomas Huth udev = udev_new(); 94143dadc43SThomas Huth udevice = udev_device_new_from_syspath(udev, syspath); 94243dadc43SThomas Huth if (udev == NULL || udevice == NULL) { 94343dadc43SThomas Huth g_debug("failed to query udev"); 94443dadc43SThomas Huth } else { 94543dadc43SThomas Huth const char *devnode, *serial; 94643dadc43SThomas Huth devnode = udev_device_get_devnode(udevice); 94743dadc43SThomas Huth if (devnode != NULL) { 94843dadc43SThomas Huth disk->dev = g_strdup(devnode); 94943dadc43SThomas Huth disk->has_dev = true; 95043dadc43SThomas Huth } 95143dadc43SThomas Huth serial = udev_device_get_property_value(udevice, "ID_SERIAL"); 95243dadc43SThomas Huth if (serial != NULL && *serial != 0) { 95343dadc43SThomas Huth disk->serial = g_strdup(serial); 95443dadc43SThomas Huth disk->has_serial = true; 95543dadc43SThomas Huth } 95643dadc43SThomas Huth } 95743dadc43SThomas Huth 95843dadc43SThomas Huth udev_unref(udev); 95943dadc43SThomas Huth udev_device_unref(udevice); 96043dadc43SThomas Huth #endif 96143dadc43SThomas Huth 96223843c12SThomas Huth if (strstr(syspath, "/devices/pci")) { 963d9fe4f0fSThomas Huth has_hwinf = build_guest_fsinfo_for_pci_dev(syspath, disk, errp); 9645b723a5dSThomas Huth } else if (strstr(syspath, "/devices/css")) { 9655b723a5dSThomas Huth has_hwinf = build_guest_fsinfo_for_ccw_dev(syspath, disk, errp); 96623843c12SThomas Huth } else if (strstr(syspath, "/virtio")) { 96723843c12SThomas Huth has_hwinf = build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); 96823843c12SThomas Huth } else { 96923843c12SThomas Huth g_debug("Unsupported device type for '%s'", syspath); 97023843c12SThomas Huth has_hwinf = false; 97123843c12SThomas Huth } 972d9fe4f0fSThomas Huth 97343dadc43SThomas Huth if (has_hwinf || disk->has_dev || disk->has_serial) { 97454aa3de7SEric Blake QAPI_LIST_PREPEND(fs->disk, disk); 975d9fe4f0fSThomas Huth } else { 97654aa3de7SEric Blake qapi_free_GuestDiskAddress(disk); 977d9fe4f0fSThomas Huth } 97846d4c572STomoki Sekiyama } 97946d4c572STomoki Sekiyama 98046d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 98146d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 98246d4c572STomoki Sekiyama Error **errp); 98346d4c572STomoki Sekiyama 98446d4c572STomoki Sekiyama /* Store a list of slave devices of virtual volume specified by @syspath into 98546d4c572STomoki Sekiyama * @fs */ 98646d4c572STomoki Sekiyama static void build_guest_fsinfo_for_virtual_device(char const *syspath, 98746d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 98846d4c572STomoki Sekiyama Error **errp) 98946d4c572STomoki Sekiyama { 990292743d9SMarkus Armbruster Error *err = NULL; 99146d4c572STomoki Sekiyama DIR *dir; 99246d4c572STomoki Sekiyama char *dirpath; 993e668d1b8Szhanghailiang struct dirent *entry; 99446d4c572STomoki Sekiyama 99546d4c572STomoki Sekiyama dirpath = g_strdup_printf("%s/slaves", syspath); 99646d4c572STomoki Sekiyama dir = opendir(dirpath); 99746d4c572STomoki Sekiyama if (!dir) { 9988251a72fSMichael Roth if (errno != ENOENT) { 99946d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); 10008251a72fSMichael Roth } 100146d4c572STomoki Sekiyama g_free(dirpath); 100246d4c572STomoki Sekiyama return; 100346d4c572STomoki Sekiyama } 100446d4c572STomoki Sekiyama 100546d4c572STomoki Sekiyama for (;;) { 1006e668d1b8Szhanghailiang errno = 0; 1007e668d1b8Szhanghailiang entry = readdir(dir); 1008e668d1b8Szhanghailiang if (entry == NULL) { 1009e668d1b8Szhanghailiang if (errno) { 1010e668d1b8Szhanghailiang error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); 101146d4c572STomoki Sekiyama } 101246d4c572STomoki Sekiyama break; 101346d4c572STomoki Sekiyama } 101446d4c572STomoki Sekiyama 1015e668d1b8Szhanghailiang if (entry->d_type == DT_LNK) { 1016e668d1b8Szhanghailiang char *path; 1017e668d1b8Szhanghailiang 1018e668d1b8Szhanghailiang g_debug(" slave device '%s'", entry->d_name); 1019e668d1b8Szhanghailiang path = g_strdup_printf("%s/slaves/%s", syspath, entry->d_name); 1020292743d9SMarkus Armbruster build_guest_fsinfo_for_device(path, fs, &err); 1021e668d1b8Szhanghailiang g_free(path); 102246d4c572STomoki Sekiyama 1023292743d9SMarkus Armbruster if (err) { 1024292743d9SMarkus Armbruster error_propagate(errp, err); 102546d4c572STomoki Sekiyama break; 102646d4c572STomoki Sekiyama } 102746d4c572STomoki Sekiyama } 102846d4c572STomoki Sekiyama } 102946d4c572STomoki Sekiyama 1030e668d1b8Szhanghailiang g_free(dirpath); 103146d4c572STomoki Sekiyama closedir(dir); 103246d4c572STomoki Sekiyama } 103346d4c572STomoki Sekiyama 1034fed39564STomáš Golembiovský static bool is_disk_virtual(const char *devpath, Error **errp) 1035fed39564STomáš Golembiovský { 1036fed39564STomáš Golembiovský g_autofree char *syspath = realpath(devpath, NULL); 1037fed39564STomáš Golembiovský 1038fed39564STomáš Golembiovský if (!syspath) { 1039fed39564STomáš Golembiovský error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 1040fed39564STomáš Golembiovský return false; 1041fed39564STomáš Golembiovský } 1042fed39564STomáš Golembiovský return strstr(syspath, "/devices/virtual/block/") != NULL; 1043fed39564STomáš Golembiovský } 1044fed39564STomáš Golembiovský 104546d4c572STomoki Sekiyama /* Dispatch to functions for virtual/real device */ 104646d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 104746d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 104846d4c572STomoki Sekiyama Error **errp) 104946d4c572STomoki Sekiyama { 1050fed39564STomáš Golembiovský ERRP_GUARD(); 1051fed39564STomáš Golembiovský g_autofree char *syspath = NULL; 1052fed39564STomáš Golembiovský bool is_virtual = false; 105346d4c572STomoki Sekiyama 1054fed39564STomáš Golembiovský syspath = realpath(devpath, NULL); 105546d4c572STomoki Sekiyama if (!syspath) { 1056bbb0151cSJohn Snow if (errno != ENOENT) { 105746d4c572STomoki Sekiyama error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 105846d4c572STomoki Sekiyama return; 105946d4c572STomoki Sekiyama } 106046d4c572STomoki Sekiyama 1061bbb0151cSJohn Snow /* ENOENT: This devpath may not exist because of container config */ 1062bbb0151cSJohn Snow if (!fs->name) { 1063bbb0151cSJohn Snow fs->name = g_path_get_basename(devpath); 1064bbb0151cSJohn Snow } 1065bbb0151cSJohn Snow return; 1066bbb0151cSJohn Snow } 1067bbb0151cSJohn Snow 106846d4c572STomoki Sekiyama if (!fs->name) { 10693e015d81SJulia Suvorova fs->name = g_path_get_basename(syspath); 107046d4c572STomoki Sekiyama } 107146d4c572STomoki Sekiyama 107246d4c572STomoki Sekiyama g_debug(" parse sysfs path '%s'", syspath); 1073fed39564STomáš Golembiovský is_virtual = is_disk_virtual(syspath, errp); 1074fed39564STomáš Golembiovský if (*errp != NULL) { 1075fed39564STomáš Golembiovský return; 1076fed39564STomáš Golembiovský } 1077fed39564STomáš Golembiovský if (is_virtual) { 107846d4c572STomoki Sekiyama build_guest_fsinfo_for_virtual_device(syspath, fs, errp); 107946d4c572STomoki Sekiyama } else { 108046d4c572STomoki Sekiyama build_guest_fsinfo_for_real_device(syspath, fs, errp); 108146d4c572STomoki Sekiyama } 108246d4c572STomoki Sekiyama } 108346d4c572STomoki Sekiyama 1084fed39564STomáš Golembiovský #ifdef CONFIG_LIBUDEV 1085fed39564STomáš Golembiovský 1086fed39564STomáš Golembiovský /* 1087fed39564STomáš Golembiovský * Wrapper around build_guest_fsinfo_for_device() for getting just 1088fed39564STomáš Golembiovský * the disk address. 1089fed39564STomáš Golembiovský */ 1090fed39564STomáš Golembiovský static GuestDiskAddress *get_disk_address(const char *syspath, Error **errp) 1091fed39564STomáš Golembiovský { 1092fed39564STomáš Golembiovský g_autoptr(GuestFilesystemInfo) fs = NULL; 1093fed39564STomáš Golembiovský 1094fed39564STomáš Golembiovský fs = g_new0(GuestFilesystemInfo, 1); 1095fed39564STomáš Golembiovský build_guest_fsinfo_for_device(syspath, fs, errp); 1096fed39564STomáš Golembiovský if (fs->disk != NULL) { 1097fed39564STomáš Golembiovský return g_steal_pointer(&fs->disk->value); 1098fed39564STomáš Golembiovský } 1099fed39564STomáš Golembiovský return NULL; 1100fed39564STomáš Golembiovský } 1101fed39564STomáš Golembiovský 1102fed39564STomáš Golembiovský static char *get_alias_for_syspath(const char *syspath) 1103fed39564STomáš Golembiovský { 1104fed39564STomáš Golembiovský struct udev *udev = NULL; 1105fed39564STomáš Golembiovský struct udev_device *udevice = NULL; 1106fed39564STomáš Golembiovský char *ret = NULL; 1107fed39564STomáš Golembiovský 1108fed39564STomáš Golembiovský udev = udev_new(); 1109fed39564STomáš Golembiovský if (udev == NULL) { 1110fed39564STomáš Golembiovský g_debug("failed to query udev"); 1111fed39564STomáš Golembiovský goto out; 1112fed39564STomáš Golembiovský } 1113fed39564STomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 1114fed39564STomáš Golembiovský if (udevice == NULL) { 1115fed39564STomáš Golembiovský g_debug("failed to query udev for path: %s", syspath); 1116fed39564STomáš Golembiovský goto out; 1117fed39564STomáš Golembiovský } else { 1118fed39564STomáš Golembiovský const char *alias = udev_device_get_property_value( 1119fed39564STomáš Golembiovský udevice, "DM_NAME"); 1120fed39564STomáš Golembiovský /* 1121fed39564STomáš Golembiovský * NULL means there was an error and empty string means there is no 1122fed39564STomáš Golembiovský * alias. In case of no alias we return NULL instead of empty string. 1123fed39564STomáš Golembiovský */ 1124fed39564STomáš Golembiovský if (alias == NULL) { 1125fed39564STomáš Golembiovský g_debug("failed to query udev for device alias for: %s", 1126fed39564STomáš Golembiovský syspath); 1127fed39564STomáš Golembiovský } else if (*alias != 0) { 1128fed39564STomáš Golembiovský ret = g_strdup(alias); 1129fed39564STomáš Golembiovský } 1130fed39564STomáš Golembiovský } 1131fed39564STomáš Golembiovský 1132fed39564STomáš Golembiovský out: 1133fed39564STomáš Golembiovský udev_unref(udev); 1134fed39564STomáš Golembiovský udev_device_unref(udevice); 1135fed39564STomáš Golembiovský return ret; 1136fed39564STomáš Golembiovský } 1137fed39564STomáš Golembiovský 1138fed39564STomáš Golembiovský static char *get_device_for_syspath(const char *syspath) 1139fed39564STomáš Golembiovský { 1140fed39564STomáš Golembiovský struct udev *udev = NULL; 1141fed39564STomáš Golembiovský struct udev_device *udevice = NULL; 1142fed39564STomáš Golembiovský char *ret = NULL; 1143fed39564STomáš Golembiovský 1144fed39564STomáš Golembiovský udev = udev_new(); 1145fed39564STomáš Golembiovský if (udev == NULL) { 1146fed39564STomáš Golembiovský g_debug("failed to query udev"); 1147fed39564STomáš Golembiovský goto out; 1148fed39564STomáš Golembiovský } 1149fed39564STomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 1150fed39564STomáš Golembiovský if (udevice == NULL) { 1151fed39564STomáš Golembiovský g_debug("failed to query udev for path: %s", syspath); 1152fed39564STomáš Golembiovský goto out; 1153fed39564STomáš Golembiovský } else { 1154fed39564STomáš Golembiovský ret = g_strdup(udev_device_get_devnode(udevice)); 1155fed39564STomáš Golembiovský } 1156fed39564STomáš Golembiovský 1157fed39564STomáš Golembiovský out: 1158fed39564STomáš Golembiovský udev_unref(udev); 1159fed39564STomáš Golembiovský udev_device_unref(udevice); 1160fed39564STomáš Golembiovský return ret; 1161fed39564STomáš Golembiovský } 1162fed39564STomáš Golembiovský 1163fed39564STomáš Golembiovský static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) 1164fed39564STomáš Golembiovský { 1165fed39564STomáš Golembiovský g_autofree char *deps_dir = NULL; 1166fed39564STomáš Golembiovský const gchar *dep; 1167fed39564STomáš Golembiovský GDir *dp_deps = NULL; 1168fed39564STomáš Golembiovský 1169fed39564STomáš Golembiovský /* List dependent disks */ 1170fed39564STomáš Golembiovský deps_dir = g_strdup_printf("%s/slaves", disk_dir); 1171fed39564STomáš Golembiovský g_debug(" listing entries in: %s", deps_dir); 1172fed39564STomáš Golembiovský dp_deps = g_dir_open(deps_dir, 0, NULL); 1173fed39564STomáš Golembiovský if (dp_deps == NULL) { 1174fed39564STomáš Golembiovský g_debug("failed to list entries in %s", deps_dir); 1175fed39564STomáš Golembiovský return; 1176fed39564STomáš Golembiovský } 1177a8aa94b5SMichael Roth disk->has_dependencies = true; 1178fed39564STomáš Golembiovský while ((dep = g_dir_read_name(dp_deps)) != NULL) { 1179fed39564STomáš Golembiovský g_autofree char *dep_dir = NULL; 1180fed39564STomáš Golembiovský char *dev_name; 1181fed39564STomáš Golembiovský 1182fed39564STomáš Golembiovský /* Add dependent disks */ 1183fed39564STomáš Golembiovský dep_dir = g_strdup_printf("%s/%s", deps_dir, dep); 1184fed39564STomáš Golembiovský dev_name = get_device_for_syspath(dep_dir); 1185fed39564STomáš Golembiovský if (dev_name != NULL) { 1186fed39564STomáš Golembiovský g_debug(" adding dependent device: %s", dev_name); 118754aa3de7SEric Blake QAPI_LIST_PREPEND(disk->dependencies, dev_name); 1188fed39564STomáš Golembiovský } 1189fed39564STomáš Golembiovský } 1190fed39564STomáš Golembiovský g_dir_close(dp_deps); 1191fed39564STomáš Golembiovský } 1192fed39564STomáš Golembiovský 1193fed39564STomáš Golembiovský /* 1194fed39564STomáš Golembiovský * Detect partitions subdirectory, name is "<disk_name><number>" or 1195fed39564STomáš Golembiovský * "<disk_name>p<number>" 1196fed39564STomáš Golembiovský * 1197fed39564STomáš Golembiovský * @disk_name -- last component of /sys path (e.g. sda) 1198fed39564STomáš Golembiovský * @disk_dir -- sys path of the disk (e.g. /sys/block/sda) 1199fed39564STomáš Golembiovský * @disk_dev -- device node of the disk (e.g. /dev/sda) 1200fed39564STomáš Golembiovský */ 1201fed39564STomáš Golembiovský static GuestDiskInfoList *get_disk_partitions( 1202fed39564STomáš Golembiovský GuestDiskInfoList *list, 1203fed39564STomáš Golembiovský const char *disk_name, const char *disk_dir, 1204fed39564STomáš Golembiovský const char *disk_dev) 1205fed39564STomáš Golembiovský { 120654aa3de7SEric Blake GuestDiskInfoList *ret = list; 1207fed39564STomáš Golembiovský struct dirent *de_disk; 1208fed39564STomáš Golembiovský DIR *dp_disk = NULL; 1209fed39564STomáš Golembiovský size_t len = strlen(disk_name); 1210fed39564STomáš Golembiovský 1211fed39564STomáš Golembiovský dp_disk = opendir(disk_dir); 1212fed39564STomáš Golembiovský while ((de_disk = readdir(dp_disk)) != NULL) { 1213fed39564STomáš Golembiovský g_autofree char *partition_dir = NULL; 1214fed39564STomáš Golembiovský char *dev_name; 1215fed39564STomáš Golembiovský GuestDiskInfo *partition; 1216fed39564STomáš Golembiovský 1217fed39564STomáš Golembiovský if (!(de_disk->d_type & DT_DIR)) { 1218fed39564STomáš Golembiovský continue; 1219fed39564STomáš Golembiovský } 1220fed39564STomáš Golembiovský 1221fed39564STomáš Golembiovský if (!(strncmp(disk_name, de_disk->d_name, len) == 0 && 1222fed39564STomáš Golembiovský ((*(de_disk->d_name + len) == 'p' && 1223fed39564STomáš Golembiovský isdigit(*(de_disk->d_name + len + 1))) || 1224fed39564STomáš Golembiovský isdigit(*(de_disk->d_name + len))))) { 1225fed39564STomáš Golembiovský continue; 1226fed39564STomáš Golembiovský } 1227fed39564STomáš Golembiovský 1228fed39564STomáš Golembiovský partition_dir = g_strdup_printf("%s/%s", 1229fed39564STomáš Golembiovský disk_dir, de_disk->d_name); 1230fed39564STomáš Golembiovský dev_name = get_device_for_syspath(partition_dir); 1231fed39564STomáš Golembiovský if (dev_name == NULL) { 1232fed39564STomáš Golembiovský g_debug("Failed to get device name for syspath: %s", 1233fed39564STomáš Golembiovský disk_dir); 1234fed39564STomáš Golembiovský continue; 1235fed39564STomáš Golembiovský } 1236fed39564STomáš Golembiovský partition = g_new0(GuestDiskInfo, 1); 1237fed39564STomáš Golembiovský partition->name = dev_name; 1238fed39564STomáš Golembiovský partition->partition = true; 1239bac9b87bSMarc-André Lureau partition->has_dependencies = true; 1240fed39564STomáš Golembiovský /* Add parent disk as dependent for easier tracking of hierarchy */ 124154aa3de7SEric Blake QAPI_LIST_PREPEND(partition->dependencies, g_strdup(disk_dev)); 1242fed39564STomáš Golembiovský 124354aa3de7SEric Blake QAPI_LIST_PREPEND(ret, partition); 1244fed39564STomáš Golembiovský } 1245fed39564STomáš Golembiovský closedir(dp_disk); 1246fed39564STomáš Golembiovský 1247fed39564STomáš Golembiovský return ret; 1248fed39564STomáš Golembiovský } 1249fed39564STomáš Golembiovský 125022668881Szhenwei pi static void get_nvme_smart(GuestDiskInfo *disk) 125122668881Szhenwei pi { 125222668881Szhenwei pi int fd; 125322668881Szhenwei pi GuestNVMeSmart *smart; 125422668881Szhenwei pi NvmeSmartLog log = {0}; 125522668881Szhenwei pi struct nvme_admin_cmd cmd = { 125622668881Szhenwei pi .opcode = NVME_ADM_CMD_GET_LOG_PAGE, 125722668881Szhenwei pi .nsid = NVME_NSID_BROADCAST, 125822668881Szhenwei pi .addr = (uintptr_t)&log, 125922668881Szhenwei pi .data_len = sizeof(log), 126022668881Szhenwei pi .cdw10 = NVME_LOG_SMART_INFO | (1 << 15) /* RAE bit */ 126122668881Szhenwei pi | (((sizeof(log) >> 2) - 1) << 16) 126222668881Szhenwei pi }; 126322668881Szhenwei pi 1264b9947c9cSMarc-André Lureau fd = qga_open_cloexec(disk->name, O_RDONLY, 0); 126522668881Szhenwei pi if (fd == -1) { 126622668881Szhenwei pi g_debug("Failed to open device: %s: %s", disk->name, g_strerror(errno)); 126722668881Szhenwei pi return; 126822668881Szhenwei pi } 126922668881Szhenwei pi 127022668881Szhenwei pi if (ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd)) { 127122668881Szhenwei pi g_debug("Failed to get smart: %s: %s", disk->name, g_strerror(errno)); 127222668881Szhenwei pi close(fd); 127322668881Szhenwei pi return; 127422668881Szhenwei pi } 127522668881Szhenwei pi 127622668881Szhenwei pi disk->has_smart = true; 127722668881Szhenwei pi disk->smart = g_new0(GuestDiskSmart, 1); 127822668881Szhenwei pi disk->smart->type = GUEST_DISK_BUS_TYPE_NVME; 127922668881Szhenwei pi 128022668881Szhenwei pi smart = &disk->smart->u.nvme; 128122668881Szhenwei pi smart->critical_warning = log.critical_warning; 128222668881Szhenwei pi smart->temperature = lduw_le_p(&log.temperature); /* unaligned field */ 128322668881Szhenwei pi smart->available_spare = log.available_spare; 128422668881Szhenwei pi smart->available_spare_threshold = log.available_spare_threshold; 128522668881Szhenwei pi smart->percentage_used = log.percentage_used; 128622668881Szhenwei pi smart->data_units_read_lo = le64_to_cpu(log.data_units_read[0]); 128722668881Szhenwei pi smart->data_units_read_hi = le64_to_cpu(log.data_units_read[1]); 128822668881Szhenwei pi smart->data_units_written_lo = le64_to_cpu(log.data_units_written[0]); 128922668881Szhenwei pi smart->data_units_written_hi = le64_to_cpu(log.data_units_written[1]); 129022668881Szhenwei pi smart->host_read_commands_lo = le64_to_cpu(log.host_read_commands[0]); 129122668881Szhenwei pi smart->host_read_commands_hi = le64_to_cpu(log.host_read_commands[1]); 129222668881Szhenwei pi smart->host_write_commands_lo = le64_to_cpu(log.host_write_commands[0]); 129322668881Szhenwei pi smart->host_write_commands_hi = le64_to_cpu(log.host_write_commands[1]); 129422668881Szhenwei pi smart->controller_busy_time_lo = le64_to_cpu(log.controller_busy_time[0]); 129522668881Szhenwei pi smart->controller_busy_time_hi = le64_to_cpu(log.controller_busy_time[1]); 129622668881Szhenwei pi smart->power_cycles_lo = le64_to_cpu(log.power_cycles[0]); 129722668881Szhenwei pi smart->power_cycles_hi = le64_to_cpu(log.power_cycles[1]); 129822668881Szhenwei pi smart->power_on_hours_lo = le64_to_cpu(log.power_on_hours[0]); 129922668881Szhenwei pi smart->power_on_hours_hi = le64_to_cpu(log.power_on_hours[1]); 130022668881Szhenwei pi smart->unsafe_shutdowns_lo = le64_to_cpu(log.unsafe_shutdowns[0]); 130122668881Szhenwei pi smart->unsafe_shutdowns_hi = le64_to_cpu(log.unsafe_shutdowns[1]); 130222668881Szhenwei pi smart->media_errors_lo = le64_to_cpu(log.media_errors[0]); 130322668881Szhenwei pi smart->media_errors_hi = le64_to_cpu(log.media_errors[1]); 130422668881Szhenwei pi smart->number_of_error_log_entries_lo = 130522668881Szhenwei pi le64_to_cpu(log.number_of_error_log_entries[0]); 130622668881Szhenwei pi smart->number_of_error_log_entries_hi = 130722668881Szhenwei pi le64_to_cpu(log.number_of_error_log_entries[1]); 130822668881Szhenwei pi 130922668881Szhenwei pi close(fd); 131022668881Szhenwei pi } 131122668881Szhenwei pi 131222668881Szhenwei pi static void get_disk_smart(GuestDiskInfo *disk) 131322668881Szhenwei pi { 131422668881Szhenwei pi if (disk->has_address 131522668881Szhenwei pi && (disk->address->bus_type == GUEST_DISK_BUS_TYPE_NVME)) { 131622668881Szhenwei pi get_nvme_smart(disk); 131722668881Szhenwei pi } 131822668881Szhenwei pi } 131922668881Szhenwei pi 1320fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1321fed39564STomáš Golembiovský { 132254aa3de7SEric Blake GuestDiskInfoList *ret = NULL; 1323fed39564STomáš Golembiovský GuestDiskInfo *disk; 1324fed39564STomáš Golembiovský DIR *dp = NULL; 1325fed39564STomáš Golembiovský struct dirent *de = NULL; 1326fed39564STomáš Golembiovský 1327fed39564STomáš Golembiovský g_debug("listing /sys/block directory"); 1328fed39564STomáš Golembiovský dp = opendir("/sys/block"); 1329fed39564STomáš Golembiovský if (dp == NULL) { 1330fed39564STomáš Golembiovský error_setg_errno(errp, errno, "Can't open directory \"/sys/block\""); 1331fed39564STomáš Golembiovský return NULL; 1332fed39564STomáš Golembiovský } 1333fed39564STomáš Golembiovský while ((de = readdir(dp)) != NULL) { 1334fed39564STomáš Golembiovský g_autofree char *disk_dir = NULL, *line = NULL, 1335fed39564STomáš Golembiovský *size_path = NULL; 1336fed39564STomáš Golembiovský char *dev_name; 1337fed39564STomáš Golembiovský Error *local_err = NULL; 1338fed39564STomáš Golembiovský if (de->d_type != DT_LNK) { 1339fed39564STomáš Golembiovský g_debug(" skipping entry: %s", de->d_name); 1340fed39564STomáš Golembiovský continue; 1341fed39564STomáš Golembiovský } 1342fed39564STomáš Golembiovský 1343fed39564STomáš Golembiovský /* Check size and skip zero-sized disks */ 1344fed39564STomáš Golembiovský g_debug(" checking disk size"); 1345fed39564STomáš Golembiovský size_path = g_strdup_printf("/sys/block/%s/size", de->d_name); 1346fed39564STomáš Golembiovský if (!g_file_get_contents(size_path, &line, NULL, NULL)) { 1347fed39564STomáš Golembiovský g_debug(" failed to read disk size"); 1348fed39564STomáš Golembiovský continue; 1349fed39564STomáš Golembiovský } 1350fed39564STomáš Golembiovský if (g_strcmp0(line, "0\n") == 0) { 1351fed39564STomáš Golembiovský g_debug(" skipping zero-sized disk"); 1352fed39564STomáš Golembiovský continue; 1353fed39564STomáš Golembiovský } 1354fed39564STomáš Golembiovský 1355fed39564STomáš Golembiovský g_debug(" adding %s", de->d_name); 1356fed39564STomáš Golembiovský disk_dir = g_strdup_printf("/sys/block/%s", de->d_name); 1357fed39564STomáš Golembiovský dev_name = get_device_for_syspath(disk_dir); 1358fed39564STomáš Golembiovský if (dev_name == NULL) { 1359fed39564STomáš Golembiovský g_debug("Failed to get device name for syspath: %s", 1360fed39564STomáš Golembiovský disk_dir); 1361fed39564STomáš Golembiovský continue; 1362fed39564STomáš Golembiovský } 1363fed39564STomáš Golembiovský disk = g_new0(GuestDiskInfo, 1); 1364fed39564STomáš Golembiovský disk->name = dev_name; 1365fed39564STomáš Golembiovský disk->partition = false; 1366fed39564STomáš Golembiovský disk->alias = get_alias_for_syspath(disk_dir); 1367fed39564STomáš Golembiovský disk->has_alias = (disk->alias != NULL); 136854aa3de7SEric Blake QAPI_LIST_PREPEND(ret, disk); 1369fed39564STomáš Golembiovský 1370fed39564STomáš Golembiovský /* Get address for non-virtual devices */ 1371fed39564STomáš Golembiovský bool is_virtual = is_disk_virtual(disk_dir, &local_err); 1372fed39564STomáš Golembiovský if (local_err != NULL) { 1373fed39564STomáš Golembiovský g_debug(" failed to check disk path, ignoring error: %s", 1374fed39564STomáš Golembiovský error_get_pretty(local_err)); 1375fed39564STomáš Golembiovský error_free(local_err); 1376fed39564STomáš Golembiovský local_err = NULL; 1377fed39564STomáš Golembiovský /* Don't try to get the address */ 1378fed39564STomáš Golembiovský is_virtual = true; 1379fed39564STomáš Golembiovský } 1380fed39564STomáš Golembiovský if (!is_virtual) { 1381fed39564STomáš Golembiovský disk->address = get_disk_address(disk_dir, &local_err); 1382fed39564STomáš Golembiovský if (local_err != NULL) { 1383fed39564STomáš Golembiovský g_debug(" failed to get device info, ignoring error: %s", 1384fed39564STomáš Golembiovský error_get_pretty(local_err)); 1385fed39564STomáš Golembiovský error_free(local_err); 1386fed39564STomáš Golembiovský local_err = NULL; 1387fed39564STomáš Golembiovský } else if (disk->address != NULL) { 1388fed39564STomáš Golembiovský disk->has_address = true; 1389fed39564STomáš Golembiovský } 1390fed39564STomáš Golembiovský } 1391fed39564STomáš Golembiovský 1392fed39564STomáš Golembiovský get_disk_deps(disk_dir, disk); 139322668881Szhenwei pi get_disk_smart(disk); 1394fed39564STomáš Golembiovský ret = get_disk_partitions(ret, de->d_name, disk_dir, dev_name); 1395fed39564STomáš Golembiovský } 1396b1b9ab1cSMichael Roth 1397b1b9ab1cSMichael Roth closedir(dp); 1398b1b9ab1cSMichael Roth 1399fed39564STomáš Golembiovský return ret; 1400fed39564STomáš Golembiovský } 1401fed39564STomáš Golembiovský 1402fed39564STomáš Golembiovský #else 1403fed39564STomáš Golembiovský 1404fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1405fed39564STomáš Golembiovský { 1406fed39564STomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 1407fed39564STomáš Golembiovský return NULL; 1408fed39564STomáš Golembiovský } 1409fed39564STomáš Golembiovský 1410fed39564STomáš Golembiovský #endif 1411fed39564STomáš Golembiovský 141246d4c572STomoki Sekiyama /* Return a list of the disk device(s)' info which @mount lies on */ 141346d4c572STomoki Sekiyama static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, 141446d4c572STomoki Sekiyama Error **errp) 141546d4c572STomoki Sekiyama { 141646d4c572STomoki Sekiyama GuestFilesystemInfo *fs = g_malloc0(sizeof(*fs)); 141725b5ff1aSChen Hanxiao struct statvfs buf; 141825b5ff1aSChen Hanxiao unsigned long used, nonroot_total, fr_size; 141946d4c572STomoki Sekiyama char *devpath = g_strdup_printf("/sys/dev/block/%u:%u", 142046d4c572STomoki Sekiyama mount->devmajor, mount->devminor); 142146d4c572STomoki Sekiyama 142246d4c572STomoki Sekiyama fs->mountpoint = g_strdup(mount->dirname); 142346d4c572STomoki Sekiyama fs->type = g_strdup(mount->devtype); 142446d4c572STomoki Sekiyama build_guest_fsinfo_for_device(devpath, fs, errp); 142546d4c572STomoki Sekiyama 142625b5ff1aSChen Hanxiao if (statvfs(fs->mountpoint, &buf) == 0) { 142725b5ff1aSChen Hanxiao fr_size = buf.f_frsize; 142825b5ff1aSChen Hanxiao used = buf.f_blocks - buf.f_bfree; 142925b5ff1aSChen Hanxiao nonroot_total = used + buf.f_bavail; 143025b5ff1aSChen Hanxiao fs->used_bytes = used * fr_size; 143125b5ff1aSChen Hanxiao fs->total_bytes = nonroot_total * fr_size; 143225b5ff1aSChen Hanxiao 143325b5ff1aSChen Hanxiao fs->has_total_bytes = true; 143425b5ff1aSChen Hanxiao fs->has_used_bytes = true; 143525b5ff1aSChen Hanxiao } 143625b5ff1aSChen Hanxiao 143746d4c572STomoki Sekiyama g_free(devpath); 143825b5ff1aSChen Hanxiao 143946d4c572STomoki Sekiyama return fs; 144046d4c572STomoki Sekiyama } 144146d4c572STomoki Sekiyama 144246d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 144346d4c572STomoki Sekiyama { 144446d4c572STomoki Sekiyama FsMountList mounts; 144546d4c572STomoki Sekiyama struct FsMount *mount; 144654aa3de7SEric Blake GuestFilesystemInfoList *ret = NULL; 144746d4c572STomoki Sekiyama Error *local_err = NULL; 144846d4c572STomoki Sekiyama 144946d4c572STomoki Sekiyama QTAILQ_INIT(&mounts); 1450561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, &local_err)) { 145146d4c572STomoki Sekiyama error_propagate(errp, local_err); 145246d4c572STomoki Sekiyama return NULL; 145346d4c572STomoki Sekiyama } 145446d4c572STomoki Sekiyama 145546d4c572STomoki Sekiyama QTAILQ_FOREACH(mount, &mounts, next) { 145646d4c572STomoki Sekiyama g_debug("Building guest fsinfo for '%s'", mount->dirname); 145746d4c572STomoki Sekiyama 145854aa3de7SEric Blake QAPI_LIST_PREPEND(ret, build_guest_fsinfo(mount, &local_err)); 145946d4c572STomoki Sekiyama if (local_err) { 146046d4c572STomoki Sekiyama error_propagate(errp, local_err); 146146d4c572STomoki Sekiyama qapi_free_GuestFilesystemInfoList(ret); 146246d4c572STomoki Sekiyama ret = NULL; 146346d4c572STomoki Sekiyama break; 146446d4c572STomoki Sekiyama } 146546d4c572STomoki Sekiyama } 146646d4c572STomoki Sekiyama 146746d4c572STomoki Sekiyama free_fs_mount_list(&mounts); 146846d4c572STomoki Sekiyama return ret; 146946d4c572STomoki Sekiyama } 147046d4c572STomoki Sekiyama 147146d4c572STomoki Sekiyama 1472ec0f694cSTomoki Sekiyama typedef enum { 1473ec0f694cSTomoki Sekiyama FSFREEZE_HOOK_THAW = 0, 1474ec0f694cSTomoki Sekiyama FSFREEZE_HOOK_FREEZE, 1475ec0f694cSTomoki Sekiyama } FsfreezeHookArg; 1476ec0f694cSTomoki Sekiyama 147713a439ecSStefan Weil static const char *fsfreeze_hook_arg_string[] = { 1478ec0f694cSTomoki Sekiyama "thaw", 1479ec0f694cSTomoki Sekiyama "freeze", 1480ec0f694cSTomoki Sekiyama }; 1481ec0f694cSTomoki Sekiyama 148277dbc81bSMarkus Armbruster static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp) 1483ec0f694cSTomoki Sekiyama { 1484ec0f694cSTomoki Sekiyama int status; 1485ec0f694cSTomoki Sekiyama pid_t pid; 1486ec0f694cSTomoki Sekiyama const char *hook; 1487ec0f694cSTomoki Sekiyama const char *arg_str = fsfreeze_hook_arg_string[arg]; 1488ec0f694cSTomoki Sekiyama Error *local_err = NULL; 1489ec0f694cSTomoki Sekiyama 1490ec0f694cSTomoki Sekiyama hook = ga_fsfreeze_hook(ga_state); 1491ec0f694cSTomoki Sekiyama if (!hook) { 1492ec0f694cSTomoki Sekiyama return; 1493ec0f694cSTomoki Sekiyama } 1494ec0f694cSTomoki Sekiyama if (access(hook, X_OK) != 0) { 149577dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "can't access fsfreeze hook '%s'", hook); 1496ec0f694cSTomoki Sekiyama return; 1497ec0f694cSTomoki Sekiyama } 1498ec0f694cSTomoki Sekiyama 1499ec0f694cSTomoki Sekiyama slog("executing fsfreeze hook with arg '%s'", arg_str); 1500ec0f694cSTomoki Sekiyama pid = fork(); 1501ec0f694cSTomoki Sekiyama if (pid == 0) { 1502ec0f694cSTomoki Sekiyama setsid(); 1503ec0f694cSTomoki Sekiyama reopen_fd_to_null(0); 1504ec0f694cSTomoki Sekiyama reopen_fd_to_null(1); 1505ec0f694cSTomoki Sekiyama reopen_fd_to_null(2); 1506ec0f694cSTomoki Sekiyama 1507fcc41961SMarc-André Lureau execl(hook, hook, arg_str, NULL); 1508ec0f694cSTomoki Sekiyama _exit(EXIT_FAILURE); 1509ec0f694cSTomoki Sekiyama } else if (pid < 0) { 151077dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 1511ec0f694cSTomoki Sekiyama return; 1512ec0f694cSTomoki Sekiyama } 1513ec0f694cSTomoki Sekiyama 1514ec0f694cSTomoki Sekiyama ga_wait_child(pid, &status, &local_err); 151584d18f06SMarkus Armbruster if (local_err) { 151677dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1517ec0f694cSTomoki Sekiyama return; 1518ec0f694cSTomoki Sekiyama } 1519ec0f694cSTomoki Sekiyama 1520ec0f694cSTomoki Sekiyama if (!WIFEXITED(status)) { 152177dbc81bSMarkus Armbruster error_setg(errp, "fsfreeze hook has terminated abnormally"); 1522ec0f694cSTomoki Sekiyama return; 1523ec0f694cSTomoki Sekiyama } 1524ec0f694cSTomoki Sekiyama 1525ec0f694cSTomoki Sekiyama status = WEXITSTATUS(status); 1526ec0f694cSTomoki Sekiyama if (status) { 152777dbc81bSMarkus Armbruster error_setg(errp, "fsfreeze hook has failed with status %d", status); 1528ec0f694cSTomoki Sekiyama return; 1529ec0f694cSTomoki Sekiyama } 1530ec0f694cSTomoki Sekiyama } 1531ec0f694cSTomoki Sekiyama 1532c216e5adSMichael Roth /* 1533c216e5adSMichael Roth * Return status of freeze/thaw 1534c216e5adSMichael Roth */ 153577dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1536c216e5adSMichael Roth { 1537f22d85e9SMichael Roth if (ga_is_frozen(ga_state)) { 1538f22d85e9SMichael Roth return GUEST_FSFREEZE_STATUS_FROZEN; 1539f22d85e9SMichael Roth } 1540f22d85e9SMichael Roth 1541f22d85e9SMichael Roth return GUEST_FSFREEZE_STATUS_THAWED; 1542c216e5adSMichael Roth } 1543c216e5adSMichael Roth 1544e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1545e99bce20STomoki Sekiyama { 1546e99bce20STomoki Sekiyama return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1547e99bce20STomoki Sekiyama } 1548e99bce20STomoki Sekiyama 1549e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1550e99bce20STomoki Sekiyama strList *mountpoints, 1551e99bce20STomoki Sekiyama Error **errp) 1552c216e5adSMichael Roth { 1553*518b0d80SAlexander Ivanov int ret; 1554af02203fSPaolo Bonzini FsMountList mounts; 1555261551d1SLuiz Capitulino Error *local_err = NULL; 1556c216e5adSMichael Roth 1557c216e5adSMichael Roth slog("guest-fsfreeze called"); 1558c216e5adSMichael Roth 1559ec0f694cSTomoki Sekiyama execute_fsfreeze_hook(FSFREEZE_HOOK_FREEZE, &local_err); 156084d18f06SMarkus Armbruster if (local_err) { 156177dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1562ec0f694cSTomoki Sekiyama return -1; 1563ec0f694cSTomoki Sekiyama } 1564ec0f694cSTomoki Sekiyama 15659e8aded4SMichael Roth QTAILQ_INIT(&mounts); 1566561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, &local_err)) { 156777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 1568261551d1SLuiz Capitulino return -1; 1569c216e5adSMichael Roth } 1570c216e5adSMichael Roth 1571c216e5adSMichael Roth /* cannot risk guest agent blocking itself on a write in this state */ 1572f22d85e9SMichael Roth ga_set_frozen(ga_state); 1573c216e5adSMichael Roth 1574*518b0d80SAlexander Ivanov ret = qmp_guest_fsfreeze_do_freeze_list(has_mountpoints, mountpoints, 1575*518b0d80SAlexander Ivanov mounts, errp); 1576c216e5adSMichael Roth 1577af02203fSPaolo Bonzini free_fs_mount_list(&mounts); 157865650f01SChen Hanxiao /* We may not issue any FIFREEZE here. 157965650f01SChen Hanxiao * Just unset ga_state here and ready for the next call. 158065650f01SChen Hanxiao */ 1581*518b0d80SAlexander Ivanov if (ret == 0) { 158265650f01SChen Hanxiao ga_unset_frozen(ga_state); 1583*518b0d80SAlexander Ivanov } else if (ret < 0) { 1584c216e5adSMichael Roth qmp_guest_fsfreeze_thaw(NULL); 1585*518b0d80SAlexander Ivanov } 1586*518b0d80SAlexander Ivanov return ret; 1587c216e5adSMichael Roth } 1588c216e5adSMichael Roth 158977dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1590c216e5adSMichael Roth { 1591c216e5adSMichael Roth int ret; 1592c216e5adSMichael Roth 1593*518b0d80SAlexander Ivanov ret = qmp_guest_fsfreeze_do_thaw(errp); 1594*518b0d80SAlexander Ivanov if (ret >= 0) { 1595f22d85e9SMichael Roth ga_unset_frozen(ga_state); 159677dbc81bSMarkus Armbruster execute_fsfreeze_hook(FSFREEZE_HOOK_THAW, errp); 1597*518b0d80SAlexander Ivanov } else { 1598*518b0d80SAlexander Ivanov ret = 0; 1599*518b0d80SAlexander Ivanov } 1600ec0f694cSTomoki Sekiyama 1601*518b0d80SAlexander Ivanov return ret; 1602c216e5adSMichael Roth } 1603c216e5adSMichael Roth 1604c216e5adSMichael Roth static void guest_fsfreeze_cleanup(void) 1605c216e5adSMichael Roth { 1606c216e5adSMichael Roth Error *err = NULL; 1607c216e5adSMichael Roth 1608f22d85e9SMichael Roth if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 16096f686749SMarkus Armbruster qmp_guest_fsfreeze_thaw(&err); 16106f686749SMarkus Armbruster if (err) { 16116f686749SMarkus Armbruster slog("failed to clean up frozen filesystems: %s", 16126f686749SMarkus Armbruster error_get_pretty(err)); 16136f686749SMarkus Armbruster error_free(err); 1614c216e5adSMichael Roth } 1615c216e5adSMichael Roth } 1616c216e5adSMichael Roth } 1617e72c3f2eSMichael Roth #endif /* CONFIG_FSFREEZE */ 1618c216e5adSMichael Roth 1619eab5fd59SPaolo Bonzini #if defined(CONFIG_FSTRIM) 1620eab5fd59SPaolo Bonzini /* 1621eab5fd59SPaolo Bonzini * Walk list of mounted file systems in the guest, and trim them. 1622eab5fd59SPaolo Bonzini */ 1623e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 1624e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1625eab5fd59SPaolo Bonzini { 1626e82855d9SJustin Ossevoort GuestFilesystemTrimResponse *response; 1627e82855d9SJustin Ossevoort GuestFilesystemTrimResult *result; 1628eab5fd59SPaolo Bonzini int ret = 0; 1629eab5fd59SPaolo Bonzini FsMountList mounts; 1630eab5fd59SPaolo Bonzini struct FsMount *mount; 1631eab5fd59SPaolo Bonzini int fd; 163273a652a1SJustin Ossevoort struct fstrim_range r; 1633eab5fd59SPaolo Bonzini 1634eab5fd59SPaolo Bonzini slog("guest-fstrim called"); 1635eab5fd59SPaolo Bonzini 1636eab5fd59SPaolo Bonzini QTAILQ_INIT(&mounts); 1637561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, errp)) { 1638e82855d9SJustin Ossevoort return NULL; 1639eab5fd59SPaolo Bonzini } 1640eab5fd59SPaolo Bonzini 1641e82855d9SJustin Ossevoort response = g_malloc0(sizeof(*response)); 1642e82855d9SJustin Ossevoort 1643eab5fd59SPaolo Bonzini QTAILQ_FOREACH(mount, &mounts, next) { 1644e82855d9SJustin Ossevoort result = g_malloc0(sizeof(*result)); 1645e82855d9SJustin Ossevoort result->path = g_strdup(mount->dirname); 1646e82855d9SJustin Ossevoort 164754aa3de7SEric Blake QAPI_LIST_PREPEND(response->paths, result); 1648e82855d9SJustin Ossevoort 1649b9947c9cSMarc-André Lureau fd = qga_open_cloexec(mount->dirname, O_RDONLY, 0); 1650eab5fd59SPaolo Bonzini if (fd == -1) { 1651e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to open: %s", 1652e82855d9SJustin Ossevoort strerror(errno)); 1653e82855d9SJustin Ossevoort result->has_error = true; 1654e82855d9SJustin Ossevoort continue; 1655eab5fd59SPaolo Bonzini } 1656eab5fd59SPaolo Bonzini 1657e35916acSMichael Tokarev /* We try to cull filesystems we know won't work in advance, but other 1658e35916acSMichael Tokarev * filesystems may not implement fstrim for less obvious reasons. 1659e35916acSMichael Tokarev * These will report EOPNOTSUPP; while in some other cases ENOTTY 1660e35916acSMichael Tokarev * will be reported (e.g. CD-ROMs). 1661e82855d9SJustin Ossevoort * Any other error means an unexpected error. 1662eab5fd59SPaolo Bonzini */ 166373a652a1SJustin Ossevoort r.start = 0; 166473a652a1SJustin Ossevoort r.len = -1; 166573a652a1SJustin Ossevoort r.minlen = has_minimum ? minimum : 0; 1666eab5fd59SPaolo Bonzini ret = ioctl(fd, FITRIM, &r); 1667eab5fd59SPaolo Bonzini if (ret == -1) { 1668e82855d9SJustin Ossevoort result->has_error = true; 1669e82855d9SJustin Ossevoort if (errno == ENOTTY || errno == EOPNOTSUPP) { 1670e82855d9SJustin Ossevoort result->error = g_strdup("trim not supported"); 1671e82855d9SJustin Ossevoort } else { 1672e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to trim: %s", 1673e82855d9SJustin Ossevoort strerror(errno)); 1674e82855d9SJustin Ossevoort } 1675eab5fd59SPaolo Bonzini close(fd); 1676e82855d9SJustin Ossevoort continue; 1677eab5fd59SPaolo Bonzini } 1678e82855d9SJustin Ossevoort 1679e82855d9SJustin Ossevoort result->has_minimum = true; 1680e82855d9SJustin Ossevoort result->minimum = r.minlen; 1681e82855d9SJustin Ossevoort result->has_trimmed = true; 1682e82855d9SJustin Ossevoort result->trimmed = r.len; 1683eab5fd59SPaolo Bonzini close(fd); 1684eab5fd59SPaolo Bonzini } 1685eab5fd59SPaolo Bonzini 1686eab5fd59SPaolo Bonzini free_fs_mount_list(&mounts); 1687e82855d9SJustin Ossevoort return response; 1688eab5fd59SPaolo Bonzini } 1689eab5fd59SPaolo Bonzini #endif /* CONFIG_FSTRIM */ 1690eab5fd59SPaolo Bonzini 1691eab5fd59SPaolo Bonzini 169211d0f125SLuiz Capitulino #define LINUX_SYS_STATE_FILE "/sys/power/state" 169311d0f125SLuiz Capitulino #define SUSPEND_SUPPORTED 0 169411d0f125SLuiz Capitulino #define SUSPEND_NOT_SUPPORTED 1 169511d0f125SLuiz Capitulino 16968b020b5eSDaniel Henrique Barboza typedef enum { 16978b020b5eSDaniel Henrique Barboza SUSPEND_MODE_DISK = 0, 16988b020b5eSDaniel Henrique Barboza SUSPEND_MODE_RAM = 1, 16998b020b5eSDaniel Henrique Barboza SUSPEND_MODE_HYBRID = 2, 17008b020b5eSDaniel Henrique Barboza } SuspendMode; 17018b020b5eSDaniel Henrique Barboza 17028b020b5eSDaniel Henrique Barboza /* 17038b020b5eSDaniel Henrique Barboza * Executes a command in a child process using g_spawn_sync, 17048b020b5eSDaniel Henrique Barboza * returning an int >= 0 representing the exit status of the 17058b020b5eSDaniel Henrique Barboza * process. 17068b020b5eSDaniel Henrique Barboza * 17078b020b5eSDaniel Henrique Barboza * If the program wasn't found in path, returns -1. 17088b020b5eSDaniel Henrique Barboza * 17098b020b5eSDaniel Henrique Barboza * If a problem happened when creating the child process, 17108b020b5eSDaniel Henrique Barboza * returns -1 and errp is set. 17118b020b5eSDaniel Henrique Barboza */ 17128b020b5eSDaniel Henrique Barboza static int run_process_child(const char *command[], Error **errp) 17138b020b5eSDaniel Henrique Barboza { 17148b020b5eSDaniel Henrique Barboza int exit_status, spawn_flag; 17158b020b5eSDaniel Henrique Barboza GError *g_err = NULL; 17168b020b5eSDaniel Henrique Barboza bool success; 17178b020b5eSDaniel Henrique Barboza 17188b020b5eSDaniel Henrique Barboza spawn_flag = G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | 17198b020b5eSDaniel Henrique Barboza G_SPAWN_STDERR_TO_DEV_NULL; 17208b020b5eSDaniel Henrique Barboza 1721fcc41961SMarc-André Lureau success = g_spawn_sync(NULL, (char **)command, NULL, spawn_flag, 17228b020b5eSDaniel Henrique Barboza NULL, NULL, NULL, NULL, 17238b020b5eSDaniel Henrique Barboza &exit_status, &g_err); 17248b020b5eSDaniel Henrique Barboza 17258b020b5eSDaniel Henrique Barboza if (success) { 17268b020b5eSDaniel Henrique Barboza return WEXITSTATUS(exit_status); 17278b020b5eSDaniel Henrique Barboza } 17288b020b5eSDaniel Henrique Barboza 17298b020b5eSDaniel Henrique Barboza if (g_err && (g_err->code != G_SPAWN_ERROR_NOENT)) { 17308b020b5eSDaniel Henrique Barboza error_setg(errp, "failed to create child process, error '%s'", 17318b020b5eSDaniel Henrique Barboza g_err->message); 17328b020b5eSDaniel Henrique Barboza } 17338b020b5eSDaniel Henrique Barboza 17348b020b5eSDaniel Henrique Barboza g_error_free(g_err); 17358b020b5eSDaniel Henrique Barboza return -1; 17368b020b5eSDaniel Henrique Barboza } 17378b020b5eSDaniel Henrique Barboza 1738067927d6SDaniel Henrique Barboza static bool systemd_supports_mode(SuspendMode mode, Error **errp) 1739067927d6SDaniel Henrique Barboza { 1740067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"systemd-hibernate", "systemd-suspend", 1741067927d6SDaniel Henrique Barboza "systemd-hybrid-sleep"}; 1742067927d6SDaniel Henrique Barboza const char *cmd[4] = {"systemctl", "status", systemctl_args[mode], NULL}; 1743067927d6SDaniel Henrique Barboza int status; 1744067927d6SDaniel Henrique Barboza 1745992861fbSMarkus Armbruster status = run_process_child(cmd, errp); 1746067927d6SDaniel Henrique Barboza 1747067927d6SDaniel Henrique Barboza /* 1748067927d6SDaniel Henrique Barboza * systemctl status uses LSB return codes so we can expect 1749067927d6SDaniel Henrique Barboza * status > 0 and be ok. To assert if the guest has support 1750067927d6SDaniel Henrique Barboza * for the selected suspend mode, status should be < 4. 4 is 1751067927d6SDaniel Henrique Barboza * the code for unknown service status, the return value when 1752067927d6SDaniel Henrique Barboza * the service does not exist. A common value is status = 3 1753067927d6SDaniel Henrique Barboza * (program is not running). 1754067927d6SDaniel Henrique Barboza */ 1755067927d6SDaniel Henrique Barboza if (status > 0 && status < 4) { 1756067927d6SDaniel Henrique Barboza return true; 1757067927d6SDaniel Henrique Barboza } 1758067927d6SDaniel Henrique Barboza 1759067927d6SDaniel Henrique Barboza return false; 1760067927d6SDaniel Henrique Barboza } 1761067927d6SDaniel Henrique Barboza 1762067927d6SDaniel Henrique Barboza static void systemd_suspend(SuspendMode mode, Error **errp) 1763067927d6SDaniel Henrique Barboza { 1764067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1765067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"hibernate", "suspend", "hybrid-sleep"}; 1766067927d6SDaniel Henrique Barboza const char *cmd[3] = {"systemctl", systemctl_args[mode], NULL}; 1767067927d6SDaniel Henrique Barboza int status; 1768067927d6SDaniel Henrique Barboza 1769067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1770067927d6SDaniel Henrique Barboza 1771067927d6SDaniel Henrique Barboza if (status == 0) { 1772067927d6SDaniel Henrique Barboza return; 1773067927d6SDaniel Henrique Barboza } 1774067927d6SDaniel Henrique Barboza 1775067927d6SDaniel Henrique Barboza if ((status == -1) && !local_err) { 1776067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' was not found", 1777067927d6SDaniel Henrique Barboza systemctl_args[mode]); 1778067927d6SDaniel Henrique Barboza return; 1779067927d6SDaniel Henrique Barboza } 1780067927d6SDaniel Henrique Barboza 1781067927d6SDaniel Henrique Barboza if (local_err) { 1782067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1783067927d6SDaniel Henrique Barboza } else { 1784067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' returned an " 1785067927d6SDaniel Henrique Barboza "unexpected exit status code (%d)", 1786067927d6SDaniel Henrique Barboza systemctl_args[mode], status); 1787067927d6SDaniel Henrique Barboza } 1788067927d6SDaniel Henrique Barboza } 1789067927d6SDaniel Henrique Barboza 17908b020b5eSDaniel Henrique Barboza static bool pmutils_supports_mode(SuspendMode mode, Error **errp) 179111d0f125SLuiz Capitulino { 17926b26e837SLuiz Capitulino Error *local_err = NULL; 17938b020b5eSDaniel Henrique Barboza const char *pmutils_args[3] = {"--hibernate", "--suspend", 17948b020b5eSDaniel Henrique Barboza "--suspend-hybrid"}; 17958b020b5eSDaniel Henrique Barboza const char *cmd[3] = {"pm-is-supported", pmutils_args[mode], NULL}; 1796dc8764f0SLuiz Capitulino int status; 179711d0f125SLuiz Capitulino 17988b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1799304a0fcbSDaniel Henrique Barboza 18008b020b5eSDaniel Henrique Barboza if (status == SUSPEND_SUPPORTED) { 18018b020b5eSDaniel Henrique Barboza return true; 1802304a0fcbSDaniel Henrique Barboza } 1803304a0fcbSDaniel Henrique Barboza 18048b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 18058b020b5eSDaniel Henrique Barboza return false; 1806a5fcf0e3SDaniel Henrique Barboza } 180711d0f125SLuiz Capitulino 180884d18f06SMarkus Armbruster if (local_err) { 180977dbc81bSMarkus Armbruster error_propagate(errp, local_err); 18108b020b5eSDaniel Henrique Barboza } else { 181177dbc81bSMarkus Armbruster error_setg(errp, 18128b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 18138b020b5eSDaniel Henrique Barboza " status code (%d)", "pm-is-supported", status); 1814dc8764f0SLuiz Capitulino } 181511d0f125SLuiz Capitulino 18168b020b5eSDaniel Henrique Barboza return false; 1817a5fcf0e3SDaniel Henrique Barboza } 1818a5fcf0e3SDaniel Henrique Barboza 18198b020b5eSDaniel Henrique Barboza static void pmutils_suspend(SuspendMode mode, Error **errp) 1820246d76ebSDaniel Henrique Barboza { 1821246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 18228b020b5eSDaniel Henrique Barboza const char *pmutils_binaries[3] = {"pm-hibernate", "pm-suspend", 18238b020b5eSDaniel Henrique Barboza "pm-suspend-hybrid"}; 18248b020b5eSDaniel Henrique Barboza const char *cmd[2] = {pmutils_binaries[mode], NULL}; 1825246d76ebSDaniel Henrique Barboza int status; 1826246d76ebSDaniel Henrique Barboza 18278b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1828246d76ebSDaniel Henrique Barboza 18298b020b5eSDaniel Henrique Barboza if (status == 0) { 1830246d76ebSDaniel Henrique Barboza return; 1831246d76ebSDaniel Henrique Barboza } 1832246d76ebSDaniel Henrique Barboza 18338b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 18348b020b5eSDaniel Henrique Barboza error_setg(errp, "the helper program '%s' was not found", 18358b020b5eSDaniel Henrique Barboza pmutils_binaries[mode]); 1836246d76ebSDaniel Henrique Barboza return; 1837246d76ebSDaniel Henrique Barboza } 1838246d76ebSDaniel Henrique Barboza 1839246d76ebSDaniel Henrique Barboza if (local_err) { 1840246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 18418b020b5eSDaniel Henrique Barboza } else { 1842246d76ebSDaniel Henrique Barboza error_setg(errp, 18438b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 18448b020b5eSDaniel Henrique Barboza " status code (%d)", pmutils_binaries[mode], status); 18458b020b5eSDaniel Henrique Barboza } 1846246d76ebSDaniel Henrique Barboza } 1847246d76ebSDaniel Henrique Barboza 18488b020b5eSDaniel Henrique Barboza static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) 1849a5fcf0e3SDaniel Henrique Barboza { 18508b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 18518b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1852a5fcf0e3SDaniel Henrique Barboza char buf[32]; /* hopefully big enough */ 1853a5fcf0e3SDaniel Henrique Barboza int fd; 1854a5fcf0e3SDaniel Henrique Barboza ssize_t ret; 1855a5fcf0e3SDaniel Henrique Barboza 18568b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 18578b020b5eSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1858a5fcf0e3SDaniel Henrique Barboza return false; 1859a5fcf0e3SDaniel Henrique Barboza } 1860a5fcf0e3SDaniel Henrique Barboza 1861a5fcf0e3SDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_RDONLY); 1862a5fcf0e3SDaniel Henrique Barboza if (fd < 0) { 1863a5fcf0e3SDaniel Henrique Barboza return false; 1864a5fcf0e3SDaniel Henrique Barboza } 1865a5fcf0e3SDaniel Henrique Barboza 1866a5fcf0e3SDaniel Henrique Barboza ret = read(fd, buf, sizeof(buf) - 1); 1867d9c745c1SPaolo Bonzini close(fd); 1868a5fcf0e3SDaniel Henrique Barboza if (ret <= 0) { 1869a5fcf0e3SDaniel Henrique Barboza return false; 1870a5fcf0e3SDaniel Henrique Barboza } 1871a5fcf0e3SDaniel Henrique Barboza buf[ret] = '\0'; 1872a5fcf0e3SDaniel Henrique Barboza 1873a5fcf0e3SDaniel Henrique Barboza if (strstr(buf, sysfile_str)) { 1874a5fcf0e3SDaniel Henrique Barboza return true; 1875a5fcf0e3SDaniel Henrique Barboza } 1876a5fcf0e3SDaniel Henrique Barboza return false; 1877a5fcf0e3SDaniel Henrique Barboza } 1878a5fcf0e3SDaniel Henrique Barboza 18798b020b5eSDaniel Henrique Barboza static void linux_sys_state_suspend(SuspendMode mode, Error **errp) 1880246d76ebSDaniel Henrique Barboza { 1881246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 18828b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 18838b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1884246d76ebSDaniel Henrique Barboza pid_t pid; 1885246d76ebSDaniel Henrique Barboza int status; 1886246d76ebSDaniel Henrique Barboza 18878b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 1888246d76ebSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1889246d76ebSDaniel Henrique Barboza return; 1890246d76ebSDaniel Henrique Barboza } 1891246d76ebSDaniel Henrique Barboza 1892246d76ebSDaniel Henrique Barboza pid = fork(); 1893246d76ebSDaniel Henrique Barboza if (!pid) { 1894246d76ebSDaniel Henrique Barboza /* child */ 1895246d76ebSDaniel Henrique Barboza int fd; 1896246d76ebSDaniel Henrique Barboza 1897246d76ebSDaniel Henrique Barboza setsid(); 1898246d76ebSDaniel Henrique Barboza reopen_fd_to_null(0); 1899246d76ebSDaniel Henrique Barboza reopen_fd_to_null(1); 1900246d76ebSDaniel Henrique Barboza reopen_fd_to_null(2); 1901246d76ebSDaniel Henrique Barboza 1902246d76ebSDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_WRONLY); 1903246d76ebSDaniel Henrique Barboza if (fd < 0) { 1904246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1905246d76ebSDaniel Henrique Barboza } 1906246d76ebSDaniel Henrique Barboza 1907246d76ebSDaniel Henrique Barboza if (write(fd, sysfile_str, strlen(sysfile_str)) < 0) { 1908246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1909246d76ebSDaniel Henrique Barboza } 1910246d76ebSDaniel Henrique Barboza 1911246d76ebSDaniel Henrique Barboza _exit(EXIT_SUCCESS); 1912246d76ebSDaniel Henrique Barboza } else if (pid < 0) { 1913246d76ebSDaniel Henrique Barboza error_setg_errno(errp, errno, "failed to create child process"); 1914246d76ebSDaniel Henrique Barboza return; 1915246d76ebSDaniel Henrique Barboza } 1916246d76ebSDaniel Henrique Barboza 1917246d76ebSDaniel Henrique Barboza ga_wait_child(pid, &status, &local_err); 1918246d76ebSDaniel Henrique Barboza if (local_err) { 1919246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 1920246d76ebSDaniel Henrique Barboza return; 1921246d76ebSDaniel Henrique Barboza } 1922246d76ebSDaniel Henrique Barboza 1923246d76ebSDaniel Henrique Barboza if (WEXITSTATUS(status)) { 1924246d76ebSDaniel Henrique Barboza error_setg(errp, "child process has failed to suspend"); 1925246d76ebSDaniel Henrique Barboza } 1926246d76ebSDaniel Henrique Barboza 1927246d76ebSDaniel Henrique Barboza } 1928246d76ebSDaniel Henrique Barboza 19298b020b5eSDaniel Henrique Barboza static void guest_suspend(SuspendMode mode, Error **errp) 193011d0f125SLuiz Capitulino { 19317b376087SLuiz Capitulino Error *local_err = NULL; 193273e1d8ebSDaniel Henrique Barboza bool mode_supported = false; 193311d0f125SLuiz Capitulino 193473e1d8ebSDaniel Henrique Barboza if (systemd_supports_mode(mode, &local_err)) { 193573e1d8ebSDaniel Henrique Barboza mode_supported = true; 1936067927d6SDaniel Henrique Barboza systemd_suspend(mode, &local_err); 193773e1d8ebSDaniel Henrique Barboza } 193873e1d8ebSDaniel Henrique Barboza 1939067927d6SDaniel Henrique Barboza if (!local_err) { 1940067927d6SDaniel Henrique Barboza return; 1941067927d6SDaniel Henrique Barboza } 1942067927d6SDaniel Henrique Barboza 1943067927d6SDaniel Henrique Barboza error_free(local_err); 19446a4a3853SVladimir Sementsov-Ogievskiy local_err = NULL; 1945067927d6SDaniel Henrique Barboza 194673e1d8ebSDaniel Henrique Barboza if (pmutils_supports_mode(mode, &local_err)) { 194773e1d8ebSDaniel Henrique Barboza mode_supported = true; 19488b020b5eSDaniel Henrique Barboza pmutils_suspend(mode, &local_err); 194973e1d8ebSDaniel Henrique Barboza } 195073e1d8ebSDaniel Henrique Barboza 1951246d76ebSDaniel Henrique Barboza if (!local_err) { 1952304a0fcbSDaniel Henrique Barboza return; 1953304a0fcbSDaniel Henrique Barboza } 1954304a0fcbSDaniel Henrique Barboza 1955246d76ebSDaniel Henrique Barboza error_free(local_err); 19566a4a3853SVladimir Sementsov-Ogievskiy local_err = NULL; 195711d0f125SLuiz Capitulino 195873e1d8ebSDaniel Henrique Barboza if (linux_sys_state_supports_mode(mode, &local_err)) { 195973e1d8ebSDaniel Henrique Barboza mode_supported = true; 19608b020b5eSDaniel Henrique Barboza linux_sys_state_suspend(mode, &local_err); 196173e1d8ebSDaniel Henrique Barboza } 196273e1d8ebSDaniel Henrique Barboza 196373e1d8ebSDaniel Henrique Barboza if (!mode_supported) { 19646a4a3853SVladimir Sementsov-Ogievskiy error_free(local_err); 196573e1d8ebSDaniel Henrique Barboza error_setg(errp, 196673e1d8ebSDaniel Henrique Barboza "the requested suspend mode is not supported by the guest"); 1967b2322003SMarkus Armbruster } else { 196877dbc81bSMarkus Armbruster error_propagate(errp, local_err); 19697b376087SLuiz Capitulino } 197011d0f125SLuiz Capitulino } 197111d0f125SLuiz Capitulino 197277dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 197311d0f125SLuiz Capitulino { 1974304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_DISK, errp); 197511d0f125SLuiz Capitulino } 197611d0f125SLuiz Capitulino 197777dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 1978fbf42210SLuiz Capitulino { 1979304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_RAM, errp); 1980fbf42210SLuiz Capitulino } 1981fbf42210SLuiz Capitulino 198277dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 198395f4f404SLuiz Capitulino { 1984304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_HYBRID, errp); 198595f4f404SLuiz Capitulino } 198695f4f404SLuiz Capitulino 1987d2baff62SLaszlo Ersek /* Transfer online/offline status between @vcpu and the guest system. 1988d2baff62SLaszlo Ersek * 1989d2baff62SLaszlo Ersek * On input either @errp or *@errp must be NULL. 1990d2baff62SLaszlo Ersek * 1991d2baff62SLaszlo Ersek * In system-to-@vcpu direction, the following @vcpu fields are accessed: 1992d2baff62SLaszlo Ersek * - R: vcpu->logical_id 1993d2baff62SLaszlo Ersek * - W: vcpu->online 1994d2baff62SLaszlo Ersek * - W: vcpu->can_offline 1995d2baff62SLaszlo Ersek * 1996d2baff62SLaszlo Ersek * In @vcpu-to-system direction, the following @vcpu fields are accessed: 1997d2baff62SLaszlo Ersek * - R: vcpu->logical_id 1998d2baff62SLaszlo Ersek * - R: vcpu->online 1999d2baff62SLaszlo Ersek * 2000d2baff62SLaszlo Ersek * Written members remain unmodified on error. 2001d2baff62SLaszlo Ersek */ 2002d2baff62SLaszlo Ersek static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, 2003b4bf912aSIgor Mammedov char *dirpath, Error **errp) 2004d2baff62SLaszlo Ersek { 2005b4bf912aSIgor Mammedov int fd; 2006b4bf912aSIgor Mammedov int res; 2007d2baff62SLaszlo Ersek int dirfd; 2008b4bf912aSIgor Mammedov static const char fn[] = "online"; 2009d2baff62SLaszlo Ersek 2010d2baff62SLaszlo Ersek dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2011d2baff62SLaszlo Ersek if (dirfd == -1) { 2012d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2013b4bf912aSIgor Mammedov return; 2014b4bf912aSIgor Mammedov } 2015d2baff62SLaszlo Ersek 2016d2baff62SLaszlo Ersek fd = openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); 2017d2baff62SLaszlo Ersek if (fd == -1) { 2018d2baff62SLaszlo Ersek if (errno != ENOENT) { 2019d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); 2020d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2021d2baff62SLaszlo Ersek vcpu->online = true; 2022d2baff62SLaszlo Ersek vcpu->can_offline = false; 2023d2baff62SLaszlo Ersek } else if (!vcpu->online) { 2024d2baff62SLaszlo Ersek error_setg(errp, "logical processor #%" PRId64 " can't be " 2025d2baff62SLaszlo Ersek "offlined", vcpu->logical_id); 2026d2baff62SLaszlo Ersek } /* otherwise pretend successful re-onlining */ 2027d2baff62SLaszlo Ersek } else { 2028d2baff62SLaszlo Ersek unsigned char status; 2029d2baff62SLaszlo Ersek 2030d2baff62SLaszlo Ersek res = pread(fd, &status, 1, 0); 2031d2baff62SLaszlo Ersek if (res == -1) { 2032d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); 2033d2baff62SLaszlo Ersek } else if (res == 0) { 2034d2baff62SLaszlo Ersek error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, 2035d2baff62SLaszlo Ersek fn); 2036d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2037d2baff62SLaszlo Ersek vcpu->online = (status != '0'); 2038d2baff62SLaszlo Ersek vcpu->can_offline = true; 2039d2baff62SLaszlo Ersek } else if (vcpu->online != (status != '0')) { 2040d2baff62SLaszlo Ersek status = '0' + vcpu->online; 2041d2baff62SLaszlo Ersek if (pwrite(fd, &status, 1, 0) == -1) { 2042d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, 2043d2baff62SLaszlo Ersek fn); 2044d2baff62SLaszlo Ersek } 2045d2baff62SLaszlo Ersek } /* otherwise pretend successful re-(on|off)-lining */ 2046d2baff62SLaszlo Ersek 2047d2baff62SLaszlo Ersek res = close(fd); 2048d2baff62SLaszlo Ersek g_assert(res == 0); 2049d2baff62SLaszlo Ersek } 2050d2baff62SLaszlo Ersek 2051d2baff62SLaszlo Ersek res = close(dirfd); 2052d2baff62SLaszlo Ersek g_assert(res == 0); 2053d2baff62SLaszlo Ersek } 2054d2baff62SLaszlo Ersek 2055d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2056d2baff62SLaszlo Ersek { 2057c3033fd3SEric Blake GuestLogicalProcessorList *head, **tail; 205827e7de3cSLin Ma const char *cpu_dir = "/sys/devices/system/cpu"; 205927e7de3cSLin Ma const gchar *line; 206027e7de3cSLin Ma g_autoptr(GDir) cpu_gdir = NULL; 2061d2baff62SLaszlo Ersek Error *local_err = NULL; 2062d2baff62SLaszlo Ersek 2063d2baff62SLaszlo Ersek head = NULL; 2064c3033fd3SEric Blake tail = &head; 206527e7de3cSLin Ma cpu_gdir = g_dir_open(cpu_dir, 0, NULL); 2066d2baff62SLaszlo Ersek 206727e7de3cSLin Ma if (cpu_gdir == NULL) { 206827e7de3cSLin Ma error_setg_errno(errp, errno, "failed to list entries: %s", cpu_dir); 206927e7de3cSLin Ma return NULL; 207027e7de3cSLin Ma } 207127e7de3cSLin Ma 207227e7de3cSLin Ma while (local_err == NULL && (line = g_dir_read_name(cpu_gdir)) != NULL) { 2073d2baff62SLaszlo Ersek GuestLogicalProcessor *vcpu; 207427e7de3cSLin Ma int64_t id; 207527e7de3cSLin Ma if (sscanf(line, "cpu%" PRId64, &id)) { 207627e7de3cSLin Ma g_autofree char *path = g_strdup_printf("/sys/devices/system/cpu/" 207727e7de3cSLin Ma "cpu%" PRId64 "/", id); 2078d2baff62SLaszlo Ersek vcpu = g_malloc0(sizeof *vcpu); 2079b4bf912aSIgor Mammedov vcpu->logical_id = id; 2080d2baff62SLaszlo Ersek vcpu->has_can_offline = true; /* lolspeak ftw */ 2081b4bf912aSIgor Mammedov transfer_vcpu(vcpu, true, path, &local_err); 2082c3033fd3SEric Blake QAPI_LIST_APPEND(tail, vcpu); 2083d2baff62SLaszlo Ersek } 2084b4bf912aSIgor Mammedov } 2085d2baff62SLaszlo Ersek 2086d2baff62SLaszlo Ersek if (local_err == NULL) { 2087d2baff62SLaszlo Ersek /* there's no guest with zero VCPUs */ 2088d2baff62SLaszlo Ersek g_assert(head != NULL); 2089d2baff62SLaszlo Ersek return head; 2090d2baff62SLaszlo Ersek } 2091d2baff62SLaszlo Ersek 2092d2baff62SLaszlo Ersek qapi_free_GuestLogicalProcessorList(head); 2093d2baff62SLaszlo Ersek error_propagate(errp, local_err); 2094d2baff62SLaszlo Ersek return NULL; 2095d2baff62SLaszlo Ersek } 2096d2baff62SLaszlo Ersek 2097cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2098cbb65fc2SLaszlo Ersek { 2099cbb65fc2SLaszlo Ersek int64_t processed; 2100cbb65fc2SLaszlo Ersek Error *local_err = NULL; 2101cbb65fc2SLaszlo Ersek 2102cbb65fc2SLaszlo Ersek processed = 0; 2103cbb65fc2SLaszlo Ersek while (vcpus != NULL) { 2104b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2105b4bf912aSIgor Mammedov vcpus->value->logical_id); 2106b4bf912aSIgor Mammedov 2107b4bf912aSIgor Mammedov transfer_vcpu(vcpus->value, false, path, &local_err); 2108b4bf912aSIgor Mammedov g_free(path); 2109cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2110cbb65fc2SLaszlo Ersek break; 2111cbb65fc2SLaszlo Ersek } 2112cbb65fc2SLaszlo Ersek ++processed; 2113cbb65fc2SLaszlo Ersek vcpus = vcpus->next; 2114cbb65fc2SLaszlo Ersek } 2115cbb65fc2SLaszlo Ersek 2116cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2117cbb65fc2SLaszlo Ersek if (processed == 0) { 2118cbb65fc2SLaszlo Ersek error_propagate(errp, local_err); 2119cbb65fc2SLaszlo Ersek } else { 2120cbb65fc2SLaszlo Ersek error_free(local_err); 2121cbb65fc2SLaszlo Ersek } 2122cbb65fc2SLaszlo Ersek } 2123cbb65fc2SLaszlo Ersek 2124cbb65fc2SLaszlo Ersek return processed; 2125cbb65fc2SLaszlo Ersek } 2126cbb65fc2SLaszlo Ersek 2127215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2128215a2771SDaniel P. Berrange const char *password, 2129215a2771SDaniel P. Berrange bool crypted, 2130215a2771SDaniel P. Berrange Error **errp) 2131215a2771SDaniel P. Berrange { 2132215a2771SDaniel P. Berrange Error *local_err = NULL; 2133215a2771SDaniel P. Berrange char *passwd_path = NULL; 2134215a2771SDaniel P. Berrange pid_t pid; 2135215a2771SDaniel P. Berrange int status; 2136215a2771SDaniel P. Berrange int datafd[2] = { -1, -1 }; 2137215a2771SDaniel P. Berrange char *rawpasswddata = NULL; 2138215a2771SDaniel P. Berrange size_t rawpasswdlen; 2139215a2771SDaniel P. Berrange char *chpasswddata = NULL; 2140215a2771SDaniel P. Berrange size_t chpasswdlen; 2141215a2771SDaniel P. Berrange 2142920639caSDaniel P. Berrange rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 2143920639caSDaniel P. Berrange if (!rawpasswddata) { 2144920639caSDaniel P. Berrange return; 2145920639caSDaniel P. Berrange } 2146215a2771SDaniel P. Berrange rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 2147215a2771SDaniel P. Berrange rawpasswddata[rawpasswdlen] = '\0'; 2148215a2771SDaniel P. Berrange 2149215a2771SDaniel P. Berrange if (strchr(rawpasswddata, '\n')) { 2150215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in raw password"); 2151215a2771SDaniel P. Berrange goto out; 2152215a2771SDaniel P. Berrange } 2153215a2771SDaniel P. Berrange 2154215a2771SDaniel P. Berrange if (strchr(username, '\n') || 2155215a2771SDaniel P. Berrange strchr(username, ':')) { 2156215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in username"); 2157215a2771SDaniel P. Berrange goto out; 2158215a2771SDaniel P. Berrange } 2159215a2771SDaniel P. Berrange 2160215a2771SDaniel P. Berrange chpasswddata = g_strdup_printf("%s:%s\n", username, rawpasswddata); 2161215a2771SDaniel P. Berrange chpasswdlen = strlen(chpasswddata); 2162215a2771SDaniel P. Berrange 2163215a2771SDaniel P. Berrange passwd_path = g_find_program_in_path("chpasswd"); 2164215a2771SDaniel P. Berrange 2165215a2771SDaniel P. Berrange if (!passwd_path) { 2166215a2771SDaniel P. Berrange error_setg(errp, "cannot find 'passwd' program in PATH"); 2167215a2771SDaniel P. Berrange goto out; 2168215a2771SDaniel P. Berrange } 2169215a2771SDaniel P. Berrange 2170ed78331dSMarc-André Lureau if (!g_unix_open_pipe(datafd, FD_CLOEXEC, NULL)) { 2171215a2771SDaniel P. Berrange error_setg(errp, "cannot create pipe FDs"); 2172215a2771SDaniel P. Berrange goto out; 2173215a2771SDaniel P. Berrange } 2174215a2771SDaniel P. Berrange 2175215a2771SDaniel P. Berrange pid = fork(); 2176215a2771SDaniel P. Berrange if (pid == 0) { 2177215a2771SDaniel P. Berrange close(datafd[1]); 2178215a2771SDaniel P. Berrange /* child */ 2179215a2771SDaniel P. Berrange setsid(); 2180215a2771SDaniel P. Berrange dup2(datafd[0], 0); 2181215a2771SDaniel P. Berrange reopen_fd_to_null(1); 2182215a2771SDaniel P. Berrange reopen_fd_to_null(2); 2183215a2771SDaniel P. Berrange 2184215a2771SDaniel P. Berrange if (crypted) { 2185fcc41961SMarc-André Lureau execl(passwd_path, "chpasswd", "-e", NULL); 2186215a2771SDaniel P. Berrange } else { 2187fcc41961SMarc-André Lureau execl(passwd_path, "chpasswd", NULL); 2188215a2771SDaniel P. Berrange } 2189215a2771SDaniel P. Berrange _exit(EXIT_FAILURE); 2190215a2771SDaniel P. Berrange } else if (pid < 0) { 2191215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "failed to create child process"); 2192215a2771SDaniel P. Berrange goto out; 2193215a2771SDaniel P. Berrange } 2194215a2771SDaniel P. Berrange close(datafd[0]); 2195215a2771SDaniel P. Berrange datafd[0] = -1; 2196215a2771SDaniel P. Berrange 2197215a2771SDaniel P. Berrange if (qemu_write_full(datafd[1], chpasswddata, chpasswdlen) != chpasswdlen) { 2198215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "cannot write new account password"); 2199215a2771SDaniel P. Berrange goto out; 2200215a2771SDaniel P. Berrange } 2201215a2771SDaniel P. Berrange close(datafd[1]); 2202215a2771SDaniel P. Berrange datafd[1] = -1; 2203215a2771SDaniel P. Berrange 2204215a2771SDaniel P. Berrange ga_wait_child(pid, &status, &local_err); 2205215a2771SDaniel P. Berrange if (local_err) { 2206215a2771SDaniel P. Berrange error_propagate(errp, local_err); 2207215a2771SDaniel P. Berrange goto out; 2208215a2771SDaniel P. Berrange } 2209215a2771SDaniel P. Berrange 2210215a2771SDaniel P. Berrange if (!WIFEXITED(status)) { 2211215a2771SDaniel P. Berrange error_setg(errp, "child process has terminated abnormally"); 2212215a2771SDaniel P. Berrange goto out; 2213215a2771SDaniel P. Berrange } 2214215a2771SDaniel P. Berrange 2215215a2771SDaniel P. Berrange if (WEXITSTATUS(status)) { 2216215a2771SDaniel P. Berrange error_setg(errp, "child process has failed to set user password"); 2217215a2771SDaniel P. Berrange goto out; 2218215a2771SDaniel P. Berrange } 2219215a2771SDaniel P. Berrange 2220215a2771SDaniel P. Berrange out: 2221215a2771SDaniel P. Berrange g_free(chpasswddata); 2222215a2771SDaniel P. Berrange g_free(rawpasswddata); 2223215a2771SDaniel P. Berrange g_free(passwd_path); 2224215a2771SDaniel P. Berrange if (datafd[0] != -1) { 2225215a2771SDaniel P. Berrange close(datafd[0]); 2226215a2771SDaniel P. Berrange } 2227215a2771SDaniel P. Berrange if (datafd[1] != -1) { 2228215a2771SDaniel P. Berrange close(datafd[1]); 2229215a2771SDaniel P. Berrange } 2230215a2771SDaniel P. Berrange } 2231215a2771SDaniel P. Berrange 2232bd240fcaSzhanghailiang static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, 2233bd240fcaSzhanghailiang int size, Error **errp) 2234bd240fcaSzhanghailiang { 2235bd240fcaSzhanghailiang int fd; 2236bd240fcaSzhanghailiang int res; 2237bd240fcaSzhanghailiang 2238bd240fcaSzhanghailiang errno = 0; 2239bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_RDONLY); 2240bd240fcaSzhanghailiang if (fd == -1) { 2241bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2242bd240fcaSzhanghailiang return; 2243bd240fcaSzhanghailiang } 2244bd240fcaSzhanghailiang 2245bd240fcaSzhanghailiang res = pread(fd, buf, size, 0); 2246bd240fcaSzhanghailiang if (res == -1) { 2247bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); 2248bd240fcaSzhanghailiang } else if (res == 0) { 2249bd240fcaSzhanghailiang error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathname); 2250bd240fcaSzhanghailiang } 2251bd240fcaSzhanghailiang close(fd); 2252bd240fcaSzhanghailiang } 2253bd240fcaSzhanghailiang 2254bd240fcaSzhanghailiang static void ga_write_sysfs_file(int dirfd, const char *pathname, 2255bd240fcaSzhanghailiang const char *buf, int size, Error **errp) 2256bd240fcaSzhanghailiang { 2257bd240fcaSzhanghailiang int fd; 2258bd240fcaSzhanghailiang 2259bd240fcaSzhanghailiang errno = 0; 2260bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_WRONLY); 2261bd240fcaSzhanghailiang if (fd == -1) { 2262bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2263bd240fcaSzhanghailiang return; 2264bd240fcaSzhanghailiang } 2265bd240fcaSzhanghailiang 2266bd240fcaSzhanghailiang if (pwrite(fd, buf, size, 0) == -1) { 2267bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname); 2268bd240fcaSzhanghailiang } 2269bd240fcaSzhanghailiang 2270bd240fcaSzhanghailiang close(fd); 2271bd240fcaSzhanghailiang } 2272bd240fcaSzhanghailiang 2273bd240fcaSzhanghailiang /* Transfer online/offline status between @mem_blk and the guest system. 2274bd240fcaSzhanghailiang * 2275bd240fcaSzhanghailiang * On input either @errp or *@errp must be NULL. 2276bd240fcaSzhanghailiang * 2277bd240fcaSzhanghailiang * In system-to-@mem_blk direction, the following @mem_blk fields are accessed: 2278bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2279bd240fcaSzhanghailiang * - W: mem_blk->online 2280bd240fcaSzhanghailiang * - W: mem_blk->can_offline 2281bd240fcaSzhanghailiang * 2282bd240fcaSzhanghailiang * In @mem_blk-to-system direction, the following @mem_blk fields are accessed: 2283bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2284bd240fcaSzhanghailiang * - R: mem_blk->online 2285bd240fcaSzhanghailiang *- R: mem_blk->can_offline 2286bd240fcaSzhanghailiang * Written members remain unmodified on error. 2287bd240fcaSzhanghailiang */ 2288bd240fcaSzhanghailiang static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memblk, 2289bd240fcaSzhanghailiang GuestMemoryBlockResponse *result, 2290bd240fcaSzhanghailiang Error **errp) 2291bd240fcaSzhanghailiang { 2292bd240fcaSzhanghailiang char *dirpath; 2293bd240fcaSzhanghailiang int dirfd; 2294bd240fcaSzhanghailiang char *status; 2295bd240fcaSzhanghailiang Error *local_err = NULL; 2296bd240fcaSzhanghailiang 2297bd240fcaSzhanghailiang if (!sys2memblk) { 2298bd240fcaSzhanghailiang DIR *dp; 2299bd240fcaSzhanghailiang 2300bd240fcaSzhanghailiang if (!result) { 2301bd240fcaSzhanghailiang error_setg(errp, "Internal error, 'result' should not be NULL"); 2302bd240fcaSzhanghailiang return; 2303bd240fcaSzhanghailiang } 2304bd240fcaSzhanghailiang errno = 0; 2305bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2306bd240fcaSzhanghailiang /* if there is no 'memory' directory in sysfs, 2307bd240fcaSzhanghailiang * we think this VM does not support online/offline memory block, 2308bd240fcaSzhanghailiang * any other solution? 2309bd240fcaSzhanghailiang */ 23109879f5acSPhilippe Mathieu-Daudé if (!dp) { 23119879f5acSPhilippe Mathieu-Daudé if (errno == ENOENT) { 2312bd240fcaSzhanghailiang result->response = 2313bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 23149879f5acSPhilippe Mathieu-Daudé } 2315bd240fcaSzhanghailiang goto out1; 2316bd240fcaSzhanghailiang } 2317bd240fcaSzhanghailiang closedir(dp); 2318bd240fcaSzhanghailiang } 2319bd240fcaSzhanghailiang 2320bd240fcaSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/memory%" PRId64 "/", 2321bd240fcaSzhanghailiang mem_blk->phys_index); 2322bd240fcaSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2323bd240fcaSzhanghailiang if (dirfd == -1) { 2324bd240fcaSzhanghailiang if (sys2memblk) { 2325bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2326bd240fcaSzhanghailiang } else { 2327bd240fcaSzhanghailiang if (errno == ENOENT) { 2328bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_FOUND; 2329bd240fcaSzhanghailiang } else { 2330bd240fcaSzhanghailiang result->response = 2331bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2332bd240fcaSzhanghailiang } 2333bd240fcaSzhanghailiang } 2334bd240fcaSzhanghailiang g_free(dirpath); 2335bd240fcaSzhanghailiang goto out1; 2336bd240fcaSzhanghailiang } 2337bd240fcaSzhanghailiang g_free(dirpath); 2338bd240fcaSzhanghailiang 2339bd240fcaSzhanghailiang status = g_malloc0(10); 2340bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); 2341bd240fcaSzhanghailiang if (local_err) { 2342bd240fcaSzhanghailiang /* treat with sysfs file that not exist in old kernel */ 2343bd240fcaSzhanghailiang if (errno == ENOENT) { 2344bd240fcaSzhanghailiang error_free(local_err); 2345bd240fcaSzhanghailiang if (sys2memblk) { 2346bd240fcaSzhanghailiang mem_blk->online = true; 2347bd240fcaSzhanghailiang mem_blk->can_offline = false; 2348bd240fcaSzhanghailiang } else if (!mem_blk->online) { 2349bd240fcaSzhanghailiang result->response = 2350bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 2351bd240fcaSzhanghailiang } 2352bd240fcaSzhanghailiang } else { 2353bd240fcaSzhanghailiang if (sys2memblk) { 2354bd240fcaSzhanghailiang error_propagate(errp, local_err); 2355bd240fcaSzhanghailiang } else { 2356b368123dSMarkus Armbruster error_free(local_err); 2357bd240fcaSzhanghailiang result->response = 2358bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2359bd240fcaSzhanghailiang } 2360bd240fcaSzhanghailiang } 2361bd240fcaSzhanghailiang goto out2; 2362bd240fcaSzhanghailiang } 2363bd240fcaSzhanghailiang 2364bd240fcaSzhanghailiang if (sys2memblk) { 2365bd240fcaSzhanghailiang char removable = '0'; 2366bd240fcaSzhanghailiang 2367bd240fcaSzhanghailiang mem_blk->online = (strncmp(status, "online", 6) == 0); 2368bd240fcaSzhanghailiang 2369bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); 2370bd240fcaSzhanghailiang if (local_err) { 237167cc32ebSVeres Lajos /* if no 'removable' file, it doesn't support offline mem blk */ 2372bd240fcaSzhanghailiang if (errno == ENOENT) { 2373bd240fcaSzhanghailiang error_free(local_err); 2374bd240fcaSzhanghailiang mem_blk->can_offline = false; 2375bd240fcaSzhanghailiang } else { 2376bd240fcaSzhanghailiang error_propagate(errp, local_err); 2377bd240fcaSzhanghailiang } 2378bd240fcaSzhanghailiang } else { 2379bd240fcaSzhanghailiang mem_blk->can_offline = (removable != '0'); 2380bd240fcaSzhanghailiang } 2381bd240fcaSzhanghailiang } else { 2382bd240fcaSzhanghailiang if (mem_blk->online != (strncmp(status, "online", 6) == 0)) { 23837064024dSMarc-André Lureau const char *new_state = mem_blk->online ? "online" : "offline"; 2384bd240fcaSzhanghailiang 2385bd240fcaSzhanghailiang ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_state), 2386bd240fcaSzhanghailiang &local_err); 2387bd240fcaSzhanghailiang if (local_err) { 2388bd240fcaSzhanghailiang error_free(local_err); 2389bd240fcaSzhanghailiang result->response = 2390bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2391bd240fcaSzhanghailiang goto out2; 2392bd240fcaSzhanghailiang } 2393bd240fcaSzhanghailiang 2394bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; 2395bd240fcaSzhanghailiang result->has_error_code = false; 2396bd240fcaSzhanghailiang } /* otherwise pretend successful re-(on|off)-lining */ 2397bd240fcaSzhanghailiang } 2398bd240fcaSzhanghailiang g_free(status); 2399bd240fcaSzhanghailiang close(dirfd); 2400bd240fcaSzhanghailiang return; 2401bd240fcaSzhanghailiang 2402bd240fcaSzhanghailiang out2: 2403bd240fcaSzhanghailiang g_free(status); 2404bd240fcaSzhanghailiang close(dirfd); 2405bd240fcaSzhanghailiang out1: 2406bd240fcaSzhanghailiang if (!sys2memblk) { 2407bd240fcaSzhanghailiang result->has_error_code = true; 2408bd240fcaSzhanghailiang result->error_code = errno; 2409bd240fcaSzhanghailiang } 2410bd240fcaSzhanghailiang } 2411bd240fcaSzhanghailiang 2412a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2413a065aaa9Szhanghailiang { 2414c3033fd3SEric Blake GuestMemoryBlockList *head, **tail; 2415bd240fcaSzhanghailiang Error *local_err = NULL; 2416bd240fcaSzhanghailiang struct dirent *de; 2417bd240fcaSzhanghailiang DIR *dp; 2418bd240fcaSzhanghailiang 2419bd240fcaSzhanghailiang head = NULL; 2420c3033fd3SEric Blake tail = &head; 2421bd240fcaSzhanghailiang 2422bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2423bd240fcaSzhanghailiang if (!dp) { 2424f693fe6eSMichael Roth /* it's ok if this happens to be a system that doesn't expose 2425f693fe6eSMichael Roth * memory blocks via sysfs, but otherwise we should report 2426f693fe6eSMichael Roth * an error 2427f693fe6eSMichael Roth */ 2428f693fe6eSMichael Roth if (errno != ENOENT) { 2429bd240fcaSzhanghailiang error_setg_errno(errp, errno, "Can't open directory" 24309af9e0feSMarkus Armbruster "\"/sys/devices/system/memory/\""); 2431f693fe6eSMichael Roth } 2432bd240fcaSzhanghailiang return NULL; 2433bd240fcaSzhanghailiang } 2434bd240fcaSzhanghailiang 2435bd240fcaSzhanghailiang /* Note: the phys_index of memory block may be discontinuous, 2436bd240fcaSzhanghailiang * this is because a memblk is the unit of the Sparse Memory design, which 2437bd240fcaSzhanghailiang * allows discontinuous memory ranges (ex. NUMA), so here we should 2438bd240fcaSzhanghailiang * traverse the memory block directory. 2439bd240fcaSzhanghailiang */ 2440bd240fcaSzhanghailiang while ((de = readdir(dp)) != NULL) { 2441bd240fcaSzhanghailiang GuestMemoryBlock *mem_blk; 2442bd240fcaSzhanghailiang 2443bd240fcaSzhanghailiang if ((strncmp(de->d_name, "memory", 6) != 0) || 2444bd240fcaSzhanghailiang !(de->d_type & DT_DIR)) { 2445bd240fcaSzhanghailiang continue; 2446bd240fcaSzhanghailiang } 2447bd240fcaSzhanghailiang 2448bd240fcaSzhanghailiang mem_blk = g_malloc0(sizeof *mem_blk); 2449bd240fcaSzhanghailiang /* The d_name is "memoryXXX", phys_index is block id, same as XXX */ 2450bd240fcaSzhanghailiang mem_blk->phys_index = strtoul(&de->d_name[6], NULL, 10); 2451bd240fcaSzhanghailiang mem_blk->has_can_offline = true; /* lolspeak ftw */ 2452bd240fcaSzhanghailiang transfer_memory_block(mem_blk, true, NULL, &local_err); 24534155c998SMarkus Armbruster if (local_err) { 24544155c998SMarkus Armbruster break; 24554155c998SMarkus Armbruster } 2456bd240fcaSzhanghailiang 2457c3033fd3SEric Blake QAPI_LIST_APPEND(tail, mem_blk); 2458bd240fcaSzhanghailiang } 2459bd240fcaSzhanghailiang 2460bd240fcaSzhanghailiang closedir(dp); 2461bd240fcaSzhanghailiang if (local_err == NULL) { 2462bd240fcaSzhanghailiang /* there's no guest with zero memory blocks */ 2463bd240fcaSzhanghailiang if (head == NULL) { 2464bd240fcaSzhanghailiang error_setg(errp, "guest reported zero memory blocks!"); 2465bd240fcaSzhanghailiang } 2466bd240fcaSzhanghailiang return head; 2467bd240fcaSzhanghailiang } 2468bd240fcaSzhanghailiang 2469bd240fcaSzhanghailiang qapi_free_GuestMemoryBlockList(head); 2470bd240fcaSzhanghailiang error_propagate(errp, local_err); 2471a065aaa9Szhanghailiang return NULL; 2472a065aaa9Szhanghailiang } 2473a065aaa9Szhanghailiang 2474a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2475a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2476a065aaa9Szhanghailiang { 2477c3033fd3SEric Blake GuestMemoryBlockResponseList *head, **tail; 247832ca7927Szhanghailiang Error *local_err = NULL; 247932ca7927Szhanghailiang 248032ca7927Szhanghailiang head = NULL; 2481c3033fd3SEric Blake tail = &head; 248232ca7927Szhanghailiang 248332ca7927Szhanghailiang while (mem_blks != NULL) { 248432ca7927Szhanghailiang GuestMemoryBlockResponse *result; 248532ca7927Szhanghailiang GuestMemoryBlock *current_mem_blk = mem_blks->value; 248632ca7927Szhanghailiang 248732ca7927Szhanghailiang result = g_malloc0(sizeof(*result)); 248832ca7927Szhanghailiang result->phys_index = current_mem_blk->phys_index; 248932ca7927Szhanghailiang transfer_memory_block(current_mem_blk, false, result, &local_err); 249032ca7927Szhanghailiang if (local_err) { /* should never happen */ 249132ca7927Szhanghailiang goto err; 249232ca7927Szhanghailiang } 249332ca7927Szhanghailiang 2494c3033fd3SEric Blake QAPI_LIST_APPEND(tail, result); 249532ca7927Szhanghailiang mem_blks = mem_blks->next; 249632ca7927Szhanghailiang } 249732ca7927Szhanghailiang 249832ca7927Szhanghailiang return head; 249932ca7927Szhanghailiang err: 250032ca7927Szhanghailiang qapi_free_GuestMemoryBlockResponseList(head); 250132ca7927Szhanghailiang error_propagate(errp, local_err); 2502a065aaa9Szhanghailiang return NULL; 2503a065aaa9Szhanghailiang } 2504a065aaa9Szhanghailiang 2505a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2506a065aaa9Szhanghailiang { 2507ef82b60bSzhanghailiang Error *local_err = NULL; 2508ef82b60bSzhanghailiang char *dirpath; 2509ef82b60bSzhanghailiang int dirfd; 2510ef82b60bSzhanghailiang char *buf; 2511ef82b60bSzhanghailiang GuestMemoryBlockInfo *info; 2512ef82b60bSzhanghailiang 2513ef82b60bSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/"); 2514ef82b60bSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2515ef82b60bSzhanghailiang if (dirfd == -1) { 2516ef82b60bSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2517ef82b60bSzhanghailiang g_free(dirpath); 2518a065aaa9Szhanghailiang return NULL; 2519a065aaa9Szhanghailiang } 2520ef82b60bSzhanghailiang g_free(dirpath); 2521ef82b60bSzhanghailiang 2522ef82b60bSzhanghailiang buf = g_malloc0(20); 2523ef82b60bSzhanghailiang ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); 25248ce1ee46SShannon Zhao close(dirfd); 2525ef82b60bSzhanghailiang if (local_err) { 2526ef82b60bSzhanghailiang g_free(buf); 2527ef82b60bSzhanghailiang error_propagate(errp, local_err); 2528ef82b60bSzhanghailiang return NULL; 2529ef82b60bSzhanghailiang } 2530ef82b60bSzhanghailiang 2531ef82b60bSzhanghailiang info = g_new0(GuestMemoryBlockInfo, 1); 2532ef82b60bSzhanghailiang info->size = strtol(buf, NULL, 16); /* the unit is bytes */ 2533ef82b60bSzhanghailiang 2534ef82b60bSzhanghailiang g_free(buf); 2535ef82b60bSzhanghailiang 2536ef82b60bSzhanghailiang return info; 2537ef82b60bSzhanghailiang } 2538a065aaa9Szhanghailiang 25393569664eSluzhipeng #define MAX_NAME_LEN 128 25403569664eSluzhipeng static GuestDiskStatsInfoList *guest_get_diskstats(Error **errp) 25413569664eSluzhipeng { 25423569664eSluzhipeng #ifdef CONFIG_LINUX 25433569664eSluzhipeng GuestDiskStatsInfoList *head = NULL, **tail = &head; 25443569664eSluzhipeng const char *diskstats = "/proc/diskstats"; 25453569664eSluzhipeng FILE *fp; 25463569664eSluzhipeng size_t n; 25473569664eSluzhipeng char *line = NULL; 25483569664eSluzhipeng 25493569664eSluzhipeng fp = fopen(diskstats, "r"); 25503569664eSluzhipeng if (fp == NULL) { 25513569664eSluzhipeng error_setg_errno(errp, errno, "open(\"%s\")", diskstats); 25523569664eSluzhipeng return NULL; 25533569664eSluzhipeng } 25543569664eSluzhipeng 25553569664eSluzhipeng while (getline(&line, &n, fp) != -1) { 25563569664eSluzhipeng g_autofree GuestDiskStatsInfo *diskstatinfo = NULL; 25573569664eSluzhipeng g_autofree GuestDiskStats *diskstat = NULL; 25583569664eSluzhipeng char dev_name[MAX_NAME_LEN]; 25593569664eSluzhipeng unsigned int ios_pgr, tot_ticks, rq_ticks, wr_ticks, dc_ticks, fl_ticks; 25603569664eSluzhipeng unsigned long rd_ios, rd_merges_or_rd_sec, rd_ticks_or_wr_sec, wr_ios; 25613569664eSluzhipeng unsigned long wr_merges, rd_sec_or_wr_ios, wr_sec; 25623569664eSluzhipeng unsigned long dc_ios, dc_merges, dc_sec, fl_ios; 25633569664eSluzhipeng unsigned int major, minor; 25643569664eSluzhipeng int i; 25653569664eSluzhipeng 25663569664eSluzhipeng i = sscanf(line, "%u %u %s %lu %lu %lu" 25673569664eSluzhipeng "%lu %lu %lu %lu %u %u %u %u" 25683569664eSluzhipeng "%lu %lu %lu %u %lu %u", 25693569664eSluzhipeng &major, &minor, dev_name, 25703569664eSluzhipeng &rd_ios, &rd_merges_or_rd_sec, &rd_sec_or_wr_ios, 25713569664eSluzhipeng &rd_ticks_or_wr_sec, &wr_ios, &wr_merges, &wr_sec, 25723569664eSluzhipeng &wr_ticks, &ios_pgr, &tot_ticks, &rq_ticks, 25733569664eSluzhipeng &dc_ios, &dc_merges, &dc_sec, &dc_ticks, 25743569664eSluzhipeng &fl_ios, &fl_ticks); 25753569664eSluzhipeng 25763569664eSluzhipeng if (i < 7) { 25773569664eSluzhipeng continue; 25783569664eSluzhipeng } 25793569664eSluzhipeng 25803569664eSluzhipeng diskstatinfo = g_new0(GuestDiskStatsInfo, 1); 25813569664eSluzhipeng diskstatinfo->name = g_strdup(dev_name); 25823569664eSluzhipeng diskstatinfo->major = major; 25833569664eSluzhipeng diskstatinfo->minor = minor; 25843569664eSluzhipeng 25853569664eSluzhipeng diskstat = g_new0(GuestDiskStats, 1); 25863569664eSluzhipeng if (i == 7) { 25873569664eSluzhipeng diskstat->has_read_ios = true; 25883569664eSluzhipeng diskstat->read_ios = rd_ios; 25893569664eSluzhipeng diskstat->has_read_sectors = true; 25903569664eSluzhipeng diskstat->read_sectors = rd_merges_or_rd_sec; 25913569664eSluzhipeng diskstat->has_write_ios = true; 25923569664eSluzhipeng diskstat->write_ios = rd_sec_or_wr_ios; 25933569664eSluzhipeng diskstat->has_write_sectors = true; 25943569664eSluzhipeng diskstat->write_sectors = rd_ticks_or_wr_sec; 25953569664eSluzhipeng } 25963569664eSluzhipeng if (i >= 14) { 25973569664eSluzhipeng diskstat->has_read_ios = true; 25983569664eSluzhipeng diskstat->read_ios = rd_ios; 25993569664eSluzhipeng diskstat->has_read_sectors = true; 26003569664eSluzhipeng diskstat->read_sectors = rd_sec_or_wr_ios; 26013569664eSluzhipeng diskstat->has_read_merges = true; 26023569664eSluzhipeng diskstat->read_merges = rd_merges_or_rd_sec; 26033569664eSluzhipeng diskstat->has_read_ticks = true; 26043569664eSluzhipeng diskstat->read_ticks = rd_ticks_or_wr_sec; 26053569664eSluzhipeng diskstat->has_write_ios = true; 26063569664eSluzhipeng diskstat->write_ios = wr_ios; 26073569664eSluzhipeng diskstat->has_write_sectors = true; 26083569664eSluzhipeng diskstat->write_sectors = wr_sec; 26093569664eSluzhipeng diskstat->has_write_merges = true; 26103569664eSluzhipeng diskstat->write_merges = wr_merges; 26113569664eSluzhipeng diskstat->has_write_ticks = true; 26123569664eSluzhipeng diskstat->write_ticks = wr_ticks; 26133569664eSluzhipeng diskstat->has_ios_pgr = true; 26143569664eSluzhipeng diskstat->ios_pgr = ios_pgr; 26153569664eSluzhipeng diskstat->has_total_ticks = true; 26163569664eSluzhipeng diskstat->total_ticks = tot_ticks; 26173569664eSluzhipeng diskstat->has_weight_ticks = true; 26183569664eSluzhipeng diskstat->weight_ticks = rq_ticks; 26193569664eSluzhipeng } 26203569664eSluzhipeng if (i >= 18) { 26213569664eSluzhipeng diskstat->has_discard_ios = true; 26223569664eSluzhipeng diskstat->discard_ios = dc_ios; 26233569664eSluzhipeng diskstat->has_discard_merges = true; 26243569664eSluzhipeng diskstat->discard_merges = dc_merges; 26253569664eSluzhipeng diskstat->has_discard_sectors = true; 26263569664eSluzhipeng diskstat->discard_sectors = dc_sec; 26273569664eSluzhipeng diskstat->has_discard_ticks = true; 26283569664eSluzhipeng diskstat->discard_ticks = dc_ticks; 26293569664eSluzhipeng } 26303569664eSluzhipeng if (i >= 20) { 26313569664eSluzhipeng diskstat->has_flush_ios = true; 26323569664eSluzhipeng diskstat->flush_ios = fl_ios; 26333569664eSluzhipeng diskstat->has_flush_ticks = true; 26343569664eSluzhipeng diskstat->flush_ticks = fl_ticks; 26353569664eSluzhipeng } 26363569664eSluzhipeng 26373569664eSluzhipeng diskstatinfo->stats = g_steal_pointer(&diskstat); 26383569664eSluzhipeng QAPI_LIST_APPEND(tail, diskstatinfo); 26393569664eSluzhipeng diskstatinfo = NULL; 26403569664eSluzhipeng } 26413569664eSluzhipeng free(line); 26423569664eSluzhipeng fclose(fp); 26433569664eSluzhipeng return head; 26443569664eSluzhipeng #else 26453569664eSluzhipeng g_debug("disk stats reporting available only for Linux"); 26463569664eSluzhipeng return NULL; 26473569664eSluzhipeng #endif 26483569664eSluzhipeng } 26493569664eSluzhipeng 26503569664eSluzhipeng GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 26513569664eSluzhipeng { 26523569664eSluzhipeng return guest_get_diskstats(errp); 26533569664eSluzhipeng } 26543569664eSluzhipeng 26551db8a0b0Szhenwei pi GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 26561db8a0b0Szhenwei pi { 26571db8a0b0Szhenwei pi GuestCpuStatsList *head = NULL, **tail = &head; 26581db8a0b0Szhenwei pi const char *cpustats = "/proc/stat"; 26591db8a0b0Szhenwei pi int clk_tck = sysconf(_SC_CLK_TCK); 26601db8a0b0Szhenwei pi FILE *fp; 26611db8a0b0Szhenwei pi size_t n; 26621db8a0b0Szhenwei pi char *line = NULL; 26631db8a0b0Szhenwei pi 26641db8a0b0Szhenwei pi fp = fopen(cpustats, "r"); 26651db8a0b0Szhenwei pi if (fp == NULL) { 26661db8a0b0Szhenwei pi error_setg_errno(errp, errno, "open(\"%s\")", cpustats); 26671db8a0b0Szhenwei pi return NULL; 26681db8a0b0Szhenwei pi } 26691db8a0b0Szhenwei pi 26701db8a0b0Szhenwei pi while (getline(&line, &n, fp) != -1) { 26711db8a0b0Szhenwei pi GuestCpuStats *cpustat = NULL; 26721db8a0b0Szhenwei pi GuestLinuxCpuStats *linuxcpustat; 26731db8a0b0Szhenwei pi int i; 26741db8a0b0Szhenwei pi unsigned long user, system, idle, iowait, irq, softirq, steal, guest; 26751db8a0b0Szhenwei pi unsigned long nice, guest_nice; 26761db8a0b0Szhenwei pi char name[64]; 26771db8a0b0Szhenwei pi 26781db8a0b0Szhenwei pi i = sscanf(line, "%s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", 26791db8a0b0Szhenwei pi name, &user, &nice, &system, &idle, &iowait, &irq, &softirq, 26801db8a0b0Szhenwei pi &steal, &guest, &guest_nice); 26811db8a0b0Szhenwei pi 26821db8a0b0Szhenwei pi /* drop "cpu 1 2 3 ...", get "cpuX 1 2 3 ..." only */ 26831db8a0b0Szhenwei pi if ((i == EOF) || strncmp(name, "cpu", 3) || (name[3] == '\0')) { 26841db8a0b0Szhenwei pi continue; 26851db8a0b0Szhenwei pi } 26861db8a0b0Szhenwei pi 26871db8a0b0Szhenwei pi if (i < 5) { 26881db8a0b0Szhenwei pi slog("Parsing cpu stat from %s failed, see \"man proc\"", cpustats); 26891db8a0b0Szhenwei pi break; 26901db8a0b0Szhenwei pi } 26911db8a0b0Szhenwei pi 26921db8a0b0Szhenwei pi cpustat = g_new0(GuestCpuStats, 1); 26931db8a0b0Szhenwei pi cpustat->type = GUEST_CPU_STATS_TYPE_LINUX; 26941db8a0b0Szhenwei pi 26951db8a0b0Szhenwei pi linuxcpustat = &cpustat->u.q_linux; 26961db8a0b0Szhenwei pi linuxcpustat->cpu = atoi(&name[3]); 26971db8a0b0Szhenwei pi linuxcpustat->user = user * 1000 / clk_tck; 26981db8a0b0Szhenwei pi linuxcpustat->nice = nice * 1000 / clk_tck; 26991db8a0b0Szhenwei pi linuxcpustat->system = system * 1000 / clk_tck; 27001db8a0b0Szhenwei pi linuxcpustat->idle = idle * 1000 / clk_tck; 27011db8a0b0Szhenwei pi 27021db8a0b0Szhenwei pi if (i > 5) { 27031db8a0b0Szhenwei pi linuxcpustat->has_iowait = true; 27041db8a0b0Szhenwei pi linuxcpustat->iowait = iowait * 1000 / clk_tck; 27051db8a0b0Szhenwei pi } 27061db8a0b0Szhenwei pi 27071db8a0b0Szhenwei pi if (i > 6) { 27081db8a0b0Szhenwei pi linuxcpustat->has_irq = true; 27091db8a0b0Szhenwei pi linuxcpustat->irq = irq * 1000 / clk_tck; 27101db8a0b0Szhenwei pi linuxcpustat->has_softirq = true; 27111db8a0b0Szhenwei pi linuxcpustat->softirq = softirq * 1000 / clk_tck; 27121db8a0b0Szhenwei pi } 27131db8a0b0Szhenwei pi 27141db8a0b0Szhenwei pi if (i > 8) { 27151db8a0b0Szhenwei pi linuxcpustat->has_steal = true; 27161db8a0b0Szhenwei pi linuxcpustat->steal = steal * 1000 / clk_tck; 27171db8a0b0Szhenwei pi } 27181db8a0b0Szhenwei pi 27191db8a0b0Szhenwei pi if (i > 9) { 27201db8a0b0Szhenwei pi linuxcpustat->has_guest = true; 27211db8a0b0Szhenwei pi linuxcpustat->guest = guest * 1000 / clk_tck; 27221db8a0b0Szhenwei pi } 27231db8a0b0Szhenwei pi 27241db8a0b0Szhenwei pi if (i > 10) { 27251db8a0b0Szhenwei pi linuxcpustat->has_guest = true; 27261db8a0b0Szhenwei pi linuxcpustat->guest = guest * 1000 / clk_tck; 27271db8a0b0Szhenwei pi linuxcpustat->has_guestnice = true; 27281db8a0b0Szhenwei pi linuxcpustat->guestnice = guest_nice * 1000 / clk_tck; 27291db8a0b0Szhenwei pi } 27301db8a0b0Szhenwei pi 27311db8a0b0Szhenwei pi QAPI_LIST_APPEND(tail, cpustat); 27321db8a0b0Szhenwei pi } 27331db8a0b0Szhenwei pi 27341db8a0b0Szhenwei pi free(line); 27351db8a0b0Szhenwei pi fclose(fp); 27361db8a0b0Szhenwei pi return head; 27371db8a0b0Szhenwei pi } 27381db8a0b0Szhenwei pi 2739e72c3f2eSMichael Roth #else /* defined(__linux__) */ 2740e72c3f2eSMichael Roth 274177dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 2742e72c3f2eSMichael Roth { 2743c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2744e72c3f2eSMichael Roth } 2745e72c3f2eSMichael Roth 274677dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 2747e72c3f2eSMichael Roth { 2748c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2749e72c3f2eSMichael Roth } 2750e72c3f2eSMichael Roth 275177dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 2752e72c3f2eSMichael Roth { 2753c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2754e72c3f2eSMichael Roth } 2755e72c3f2eSMichael Roth 2756d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2757d2baff62SLaszlo Ersek { 2758c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2759d2baff62SLaszlo Ersek return NULL; 2760d2baff62SLaszlo Ersek } 2761d2baff62SLaszlo Ersek 2762cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2763cbb65fc2SLaszlo Ersek { 2764c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2765cbb65fc2SLaszlo Ersek return -1; 2766cbb65fc2SLaszlo Ersek } 2767cbb65fc2SLaszlo Ersek 2768215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2769215a2771SDaniel P. Berrange const char *password, 2770215a2771SDaniel P. Berrange bool crypted, 2771215a2771SDaniel P. Berrange Error **errp) 2772215a2771SDaniel P. Berrange { 2773c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2774215a2771SDaniel P. Berrange } 2775215a2771SDaniel P. Berrange 2776a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2777a065aaa9Szhanghailiang { 2778c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2779a065aaa9Szhanghailiang return NULL; 2780a065aaa9Szhanghailiang } 2781a065aaa9Szhanghailiang 2782a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2783a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2784a065aaa9Szhanghailiang { 2785c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2786a065aaa9Szhanghailiang return NULL; 2787a065aaa9Szhanghailiang } 2788a065aaa9Szhanghailiang 2789a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2790a065aaa9Szhanghailiang { 2791c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2792a065aaa9Szhanghailiang return NULL; 2793a065aaa9Szhanghailiang } 2794a065aaa9Szhanghailiang 2795e72c3f2eSMichael Roth #endif 2796e72c3f2eSMichael Roth 279759e35c7bSAndrew Deason #ifdef HAVE_GETIFADDRS 279859e35c7bSAndrew Deason static GuestNetworkInterface * 279959e35c7bSAndrew Deason guest_find_interface(GuestNetworkInterfaceList *head, 280059e35c7bSAndrew Deason const char *name) 280159e35c7bSAndrew Deason { 280259e35c7bSAndrew Deason for (; head; head = head->next) { 280359e35c7bSAndrew Deason if (strcmp(head->value->name, name) == 0) { 280459e35c7bSAndrew Deason return head->value; 280559e35c7bSAndrew Deason } 280659e35c7bSAndrew Deason } 280759e35c7bSAndrew Deason 280859e35c7bSAndrew Deason return NULL; 280959e35c7bSAndrew Deason } 281059e35c7bSAndrew Deason 281159e35c7bSAndrew Deason static int guest_get_network_stats(const char *name, 281259e35c7bSAndrew Deason GuestNetworkInterfaceStat *stats) 281359e35c7bSAndrew Deason { 281470335c46SAndrew Deason #ifdef CONFIG_LINUX 281559e35c7bSAndrew Deason int name_len; 281659e35c7bSAndrew Deason char const *devinfo = "/proc/net/dev"; 281759e35c7bSAndrew Deason FILE *fp; 281859e35c7bSAndrew Deason char *line = NULL, *colon; 281959e35c7bSAndrew Deason size_t n = 0; 282059e35c7bSAndrew Deason fp = fopen(devinfo, "r"); 282159e35c7bSAndrew Deason if (!fp) { 2822a539dc8aSAndrew Deason g_debug("failed to open network stats %s: %s", devinfo, 2823a539dc8aSAndrew Deason g_strerror(errno)); 282459e35c7bSAndrew Deason return -1; 282559e35c7bSAndrew Deason } 282659e35c7bSAndrew Deason name_len = strlen(name); 282759e35c7bSAndrew Deason while (getline(&line, &n, fp) != -1) { 282859e35c7bSAndrew Deason long long dummy; 282959e35c7bSAndrew Deason long long rx_bytes; 283059e35c7bSAndrew Deason long long rx_packets; 283159e35c7bSAndrew Deason long long rx_errs; 283259e35c7bSAndrew Deason long long rx_dropped; 283359e35c7bSAndrew Deason long long tx_bytes; 283459e35c7bSAndrew Deason long long tx_packets; 283559e35c7bSAndrew Deason long long tx_errs; 283659e35c7bSAndrew Deason long long tx_dropped; 283759e35c7bSAndrew Deason char *trim_line; 283859e35c7bSAndrew Deason trim_line = g_strchug(line); 283959e35c7bSAndrew Deason if (trim_line[0] == '\0') { 284059e35c7bSAndrew Deason continue; 284159e35c7bSAndrew Deason } 284259e35c7bSAndrew Deason colon = strchr(trim_line, ':'); 284359e35c7bSAndrew Deason if (!colon) { 284459e35c7bSAndrew Deason continue; 284559e35c7bSAndrew Deason } 284659e35c7bSAndrew Deason if (colon - name_len == trim_line && 284759e35c7bSAndrew Deason strncmp(trim_line, name, name_len) == 0) { 284859e35c7bSAndrew Deason if (sscanf(colon + 1, 284959e35c7bSAndrew Deason "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld", 285059e35c7bSAndrew Deason &rx_bytes, &rx_packets, &rx_errs, &rx_dropped, 285159e35c7bSAndrew Deason &dummy, &dummy, &dummy, &dummy, 285259e35c7bSAndrew Deason &tx_bytes, &tx_packets, &tx_errs, &tx_dropped, 285359e35c7bSAndrew Deason &dummy, &dummy, &dummy, &dummy) != 16) { 285459e35c7bSAndrew Deason continue; 285559e35c7bSAndrew Deason } 285659e35c7bSAndrew Deason stats->rx_bytes = rx_bytes; 285759e35c7bSAndrew Deason stats->rx_packets = rx_packets; 285859e35c7bSAndrew Deason stats->rx_errs = rx_errs; 285959e35c7bSAndrew Deason stats->rx_dropped = rx_dropped; 286059e35c7bSAndrew Deason stats->tx_bytes = tx_bytes; 286159e35c7bSAndrew Deason stats->tx_packets = tx_packets; 286259e35c7bSAndrew Deason stats->tx_errs = tx_errs; 286359e35c7bSAndrew Deason stats->tx_dropped = tx_dropped; 286459e35c7bSAndrew Deason fclose(fp); 286559e35c7bSAndrew Deason g_free(line); 286659e35c7bSAndrew Deason return 0; 286759e35c7bSAndrew Deason } 286859e35c7bSAndrew Deason } 286959e35c7bSAndrew Deason fclose(fp); 287059e35c7bSAndrew Deason g_free(line); 287159e35c7bSAndrew Deason g_debug("/proc/net/dev: Interface '%s' not found", name); 2872a539dc8aSAndrew Deason #else /* !CONFIG_LINUX */ 2873a539dc8aSAndrew Deason g_debug("Network stats reporting available only for Linux"); 2874a539dc8aSAndrew Deason #endif /* !CONFIG_LINUX */ 287559e35c7bSAndrew Deason return -1; 287659e35c7bSAndrew Deason } 287759e35c7bSAndrew Deason 287859e35c7bSAndrew Deason /* 287959e35c7bSAndrew Deason * Build information about guest interfaces 288059e35c7bSAndrew Deason */ 288159e35c7bSAndrew Deason GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 288259e35c7bSAndrew Deason { 288359e35c7bSAndrew Deason GuestNetworkInterfaceList *head = NULL, **tail = &head; 288459e35c7bSAndrew Deason struct ifaddrs *ifap, *ifa; 288559e35c7bSAndrew Deason 288659e35c7bSAndrew Deason if (getifaddrs(&ifap) < 0) { 288759e35c7bSAndrew Deason error_setg_errno(errp, errno, "getifaddrs failed"); 288859e35c7bSAndrew Deason goto error; 288959e35c7bSAndrew Deason } 289059e35c7bSAndrew Deason 289159e35c7bSAndrew Deason for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 289259e35c7bSAndrew Deason GuestNetworkInterface *info; 289359e35c7bSAndrew Deason GuestIpAddressList **address_tail; 289459e35c7bSAndrew Deason GuestIpAddress *address_item = NULL; 289559e35c7bSAndrew Deason GuestNetworkInterfaceStat *interface_stat = NULL; 289659e35c7bSAndrew Deason char addr4[INET_ADDRSTRLEN]; 289759e35c7bSAndrew Deason char addr6[INET6_ADDRSTRLEN]; 289859e35c7bSAndrew Deason int sock; 289959e35c7bSAndrew Deason struct ifreq ifr; 290059e35c7bSAndrew Deason unsigned char *mac_addr; 290159e35c7bSAndrew Deason void *p; 290259e35c7bSAndrew Deason 290359e35c7bSAndrew Deason g_debug("Processing %s interface", ifa->ifa_name); 290459e35c7bSAndrew Deason 290559e35c7bSAndrew Deason info = guest_find_interface(head, ifa->ifa_name); 290659e35c7bSAndrew Deason 290759e35c7bSAndrew Deason if (!info) { 290859e35c7bSAndrew Deason info = g_malloc0(sizeof(*info)); 290959e35c7bSAndrew Deason info->name = g_strdup(ifa->ifa_name); 291059e35c7bSAndrew Deason 291159e35c7bSAndrew Deason QAPI_LIST_APPEND(tail, info); 291259e35c7bSAndrew Deason } 291359e35c7bSAndrew Deason 2914aec0730eSAndrew Deason if (!info->has_hardware_address) { 291559e35c7bSAndrew Deason /* we haven't obtained HW address yet */ 291659e35c7bSAndrew Deason sock = socket(PF_INET, SOCK_STREAM, 0); 291759e35c7bSAndrew Deason if (sock == -1) { 291859e35c7bSAndrew Deason error_setg_errno(errp, errno, "failed to create socket"); 291959e35c7bSAndrew Deason goto error; 292059e35c7bSAndrew Deason } 292159e35c7bSAndrew Deason 292259e35c7bSAndrew Deason memset(&ifr, 0, sizeof(ifr)); 292359e35c7bSAndrew Deason pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->name); 292459e35c7bSAndrew Deason if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) { 2925aec0730eSAndrew Deason /* 2926aec0730eSAndrew Deason * We can't get the hw addr of this interface, but that's not a 2927aec0730eSAndrew Deason * fatal error. Don't set info->hardware_address, but keep 2928aec0730eSAndrew Deason * going. 2929aec0730eSAndrew Deason */ 2930aec0730eSAndrew Deason if (errno == EADDRNOTAVAIL) { 2931aec0730eSAndrew Deason /* The interface doesn't have a hw addr (e.g. loopback). */ 2932aec0730eSAndrew Deason g_debug("failed to get MAC address of %s: %s", 2933aec0730eSAndrew Deason ifa->ifa_name, strerror(errno)); 2934aec0730eSAndrew Deason } else{ 2935aec0730eSAndrew Deason g_warning("failed to get MAC address of %s: %s", 2936aec0730eSAndrew Deason ifa->ifa_name, strerror(errno)); 293759e35c7bSAndrew Deason } 293859e35c7bSAndrew Deason 2939aec0730eSAndrew Deason } else { 294070335c46SAndrew Deason #ifdef CONFIG_SOLARIS 294170335c46SAndrew Deason mac_addr = (unsigned char *) &ifr.ifr_addr.sa_data; 294270335c46SAndrew Deason #else 294359e35c7bSAndrew Deason mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data; 294470335c46SAndrew Deason #endif 294559e35c7bSAndrew Deason info->hardware_address = 294659e35c7bSAndrew Deason g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 294759e35c7bSAndrew Deason (int) mac_addr[0], (int) mac_addr[1], 294859e35c7bSAndrew Deason (int) mac_addr[2], (int) mac_addr[3], 294959e35c7bSAndrew Deason (int) mac_addr[4], (int) mac_addr[5]); 295059e35c7bSAndrew Deason 295159e35c7bSAndrew Deason info->has_hardware_address = true; 295259e35c7bSAndrew Deason } 2953aec0730eSAndrew Deason close(sock); 2954aec0730eSAndrew Deason } 295559e35c7bSAndrew Deason 295659e35c7bSAndrew Deason if (ifa->ifa_addr && 295759e35c7bSAndrew Deason ifa->ifa_addr->sa_family == AF_INET) { 295859e35c7bSAndrew Deason /* interface with IPv4 address */ 295959e35c7bSAndrew Deason p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; 296059e35c7bSAndrew Deason if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) { 296159e35c7bSAndrew Deason error_setg_errno(errp, errno, "inet_ntop failed"); 296259e35c7bSAndrew Deason goto error; 296359e35c7bSAndrew Deason } 296459e35c7bSAndrew Deason 296559e35c7bSAndrew Deason address_item = g_malloc0(sizeof(*address_item)); 296659e35c7bSAndrew Deason address_item->ip_address = g_strdup(addr4); 296759e35c7bSAndrew Deason address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 296859e35c7bSAndrew Deason 296959e35c7bSAndrew Deason if (ifa->ifa_netmask) { 297059e35c7bSAndrew Deason /* Count the number of set bits in netmask. 297159e35c7bSAndrew Deason * This is safe as '1' and '0' cannot be shuffled in netmask. */ 297259e35c7bSAndrew Deason p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr; 297359e35c7bSAndrew Deason address_item->prefix = ctpop32(((uint32_t *) p)[0]); 297459e35c7bSAndrew Deason } 297559e35c7bSAndrew Deason } else if (ifa->ifa_addr && 297659e35c7bSAndrew Deason ifa->ifa_addr->sa_family == AF_INET6) { 297759e35c7bSAndrew Deason /* interface with IPv6 address */ 297859e35c7bSAndrew Deason p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; 297959e35c7bSAndrew Deason if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) { 298059e35c7bSAndrew Deason error_setg_errno(errp, errno, "inet_ntop failed"); 298159e35c7bSAndrew Deason goto error; 298259e35c7bSAndrew Deason } 298359e35c7bSAndrew Deason 298459e35c7bSAndrew Deason address_item = g_malloc0(sizeof(*address_item)); 298559e35c7bSAndrew Deason address_item->ip_address = g_strdup(addr6); 298659e35c7bSAndrew Deason address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 298759e35c7bSAndrew Deason 298859e35c7bSAndrew Deason if (ifa->ifa_netmask) { 298959e35c7bSAndrew Deason /* Count the number of set bits in netmask. 299059e35c7bSAndrew Deason * This is safe as '1' and '0' cannot be shuffled in netmask. */ 299159e35c7bSAndrew Deason p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; 299259e35c7bSAndrew Deason address_item->prefix = 299359e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[0]) + 299459e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[1]) + 299559e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[2]) + 299659e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[3]); 299759e35c7bSAndrew Deason } 299859e35c7bSAndrew Deason } 299959e35c7bSAndrew Deason 300059e35c7bSAndrew Deason if (!address_item) { 300159e35c7bSAndrew Deason continue; 300259e35c7bSAndrew Deason } 300359e35c7bSAndrew Deason 300459e35c7bSAndrew Deason address_tail = &info->ip_addresses; 300559e35c7bSAndrew Deason while (*address_tail) { 300659e35c7bSAndrew Deason address_tail = &(*address_tail)->next; 300759e35c7bSAndrew Deason } 300859e35c7bSAndrew Deason QAPI_LIST_APPEND(address_tail, address_item); 300959e35c7bSAndrew Deason 301059e35c7bSAndrew Deason info->has_ip_addresses = true; 301159e35c7bSAndrew Deason 301259e35c7bSAndrew Deason if (!info->has_statistics) { 301359e35c7bSAndrew Deason interface_stat = g_malloc0(sizeof(*interface_stat)); 301459e35c7bSAndrew Deason if (guest_get_network_stats(info->name, interface_stat) == -1) { 301559e35c7bSAndrew Deason info->has_statistics = false; 301659e35c7bSAndrew Deason g_free(interface_stat); 301759e35c7bSAndrew Deason } else { 301859e35c7bSAndrew Deason info->statistics = interface_stat; 301959e35c7bSAndrew Deason info->has_statistics = true; 302059e35c7bSAndrew Deason } 302159e35c7bSAndrew Deason } 302259e35c7bSAndrew Deason } 302359e35c7bSAndrew Deason 302459e35c7bSAndrew Deason freeifaddrs(ifap); 302559e35c7bSAndrew Deason return head; 302659e35c7bSAndrew Deason 302759e35c7bSAndrew Deason error: 302859e35c7bSAndrew Deason freeifaddrs(ifap); 302959e35c7bSAndrew Deason qapi_free_GuestNetworkInterfaceList(head); 303059e35c7bSAndrew Deason return NULL; 303159e35c7bSAndrew Deason } 303259e35c7bSAndrew Deason 303359e35c7bSAndrew Deason #else 303459e35c7bSAndrew Deason 303559e35c7bSAndrew Deason GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 303659e35c7bSAndrew Deason { 303759e35c7bSAndrew Deason error_setg(errp, QERR_UNSUPPORTED); 303859e35c7bSAndrew Deason return NULL; 303959e35c7bSAndrew Deason } 304059e35c7bSAndrew Deason 304159e35c7bSAndrew Deason #endif /* HAVE_GETIFADDRS */ 304259e35c7bSAndrew Deason 3043d35d4cb5SMichael Roth #if !defined(CONFIG_FSFREEZE) 3044d35d4cb5SMichael Roth 304546d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 304646d4c572STomoki Sekiyama { 3047c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 304846d4c572STomoki Sekiyama return NULL; 304946d4c572STomoki Sekiyama } 305046d4c572STomoki Sekiyama 305177dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 3052d35d4cb5SMichael Roth { 3053c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3054d35d4cb5SMichael Roth 3055d35d4cb5SMichael Roth return 0; 3056d35d4cb5SMichael Roth } 3057d35d4cb5SMichael Roth 305877dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_freeze(Error **errp) 3059d35d4cb5SMichael Roth { 3060c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3061d35d4cb5SMichael Roth 3062d35d4cb5SMichael Roth return 0; 3063d35d4cb5SMichael Roth } 3064d35d4cb5SMichael Roth 3065e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 3066e99bce20STomoki Sekiyama strList *mountpoints, 3067e99bce20STomoki Sekiyama Error **errp) 3068e99bce20STomoki Sekiyama { 3069c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3070e99bce20STomoki Sekiyama 3071e99bce20STomoki Sekiyama return 0; 3072e99bce20STomoki Sekiyama } 3073e99bce20STomoki Sekiyama 307477dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 3075d35d4cb5SMichael Roth { 3076c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3077d35d4cb5SMichael Roth 3078d35d4cb5SMichael Roth return 0; 3079d35d4cb5SMichael Roth } 3080fed39564STomáš Golembiovský 3081fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 3082fed39564STomáš Golembiovský { 3083fed39564STomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 3084fed39564STomáš Golembiovský return NULL; 3085fed39564STomáš Golembiovský } 3086fed39564STomáš Golembiovský 30873569664eSluzhipeng GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 30883569664eSluzhipeng { 30893569664eSluzhipeng error_setg(errp, QERR_UNSUPPORTED); 30903569664eSluzhipeng return NULL; 30913569664eSluzhipeng } 30923569664eSluzhipeng 30931db8a0b0Szhenwei pi GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 30941db8a0b0Szhenwei pi { 30951db8a0b0Szhenwei pi error_setg(errp, QERR_UNSUPPORTED); 30961db8a0b0Szhenwei pi return NULL; 30971db8a0b0Szhenwei pi } 30983569664eSluzhipeng 3099eab5fd59SPaolo Bonzini #endif /* CONFIG_FSFREEZE */ 3100d35d4cb5SMichael Roth 3101eab5fd59SPaolo Bonzini #if !defined(CONFIG_FSTRIM) 3102e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 3103e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 3104eab5fd59SPaolo Bonzini { 3105c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3106e82855d9SJustin Ossevoort return NULL; 3107eab5fd59SPaolo Bonzini } 3108d35d4cb5SMichael Roth #endif 3109d35d4cb5SMichael Roth 31100e4ef702SThomas Huth /* add unsupported commands to the list of blocked RPCs */ 31110e4ef702SThomas Huth GList *ga_command_init_blockedrpcs(GList *blockedrpcs) 31121281c08aSTomoki Sekiyama { 31131281c08aSTomoki Sekiyama #if !defined(__linux__) 31141281c08aSTomoki Sekiyama { 31151281c08aSTomoki Sekiyama const char *list[] = { 31161281c08aSTomoki Sekiyama "guest-suspend-disk", "guest-suspend-ram", 311759e35c7bSAndrew Deason "guest-suspend-hybrid", "guest-get-vcpus", "guest-set-vcpus", 31180dd38a03Szhanghailiang "guest-get-memory-blocks", "guest-set-memory-blocks", 311928d8dd35SBasil Salman "guest-get-memory-block-size", "guest-get-memory-block-info", 312028d8dd35SBasil Salman NULL}; 31211281c08aSTomoki Sekiyama char **p = (char **)list; 31221281c08aSTomoki Sekiyama 31231281c08aSTomoki Sekiyama while (*p) { 31240e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 31251281c08aSTomoki Sekiyama } 31261281c08aSTomoki Sekiyama } 31271281c08aSTomoki Sekiyama #endif 31281281c08aSTomoki Sekiyama 312959e35c7bSAndrew Deason #if !defined(HAVE_GETIFADDRS) 31300e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, 313159e35c7bSAndrew Deason g_strdup("guest-network-get-interfaces")); 313259e35c7bSAndrew Deason #endif 313359e35c7bSAndrew Deason 31341281c08aSTomoki Sekiyama #if !defined(CONFIG_FSFREEZE) 31351281c08aSTomoki Sekiyama { 31361281c08aSTomoki Sekiyama const char *list[] = { 31371281c08aSTomoki Sekiyama "guest-get-fsinfo", "guest-fsfreeze-status", 31381281c08aSTomoki Sekiyama "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", 3139fed39564STomáš Golembiovský "guest-fsfreeze-thaw", "guest-get-fsinfo", 3140fed39564STomáš Golembiovský "guest-get-disks", NULL}; 31411281c08aSTomoki Sekiyama char **p = (char **)list; 31421281c08aSTomoki Sekiyama 31431281c08aSTomoki Sekiyama while (*p) { 31440e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 31451281c08aSTomoki Sekiyama } 31461281c08aSTomoki Sekiyama } 31471281c08aSTomoki Sekiyama #endif 31481281c08aSTomoki Sekiyama 31491281c08aSTomoki Sekiyama #if !defined(CONFIG_FSTRIM) 31500e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-fstrim")); 31511281c08aSTomoki Sekiyama #endif 31521281c08aSTomoki Sekiyama 31530e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-get-devices")); 31542e4211ceSTomáš Golembiovský 31550e4ef702SThomas Huth return blockedrpcs; 31561281c08aSTomoki Sekiyama } 31571281c08aSTomoki Sekiyama 3158c216e5adSMichael Roth /* register init/cleanup routines for stateful command groups */ 3159c216e5adSMichael Roth void ga_command_state_init(GAState *s, GACommandState *cs) 3160c216e5adSMichael Roth { 3161c216e5adSMichael Roth #if defined(CONFIG_FSFREEZE) 3162f22d85e9SMichael Roth ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 3163c216e5adSMichael Roth #endif 3164c216e5adSMichael Roth } 3165161a56a9SVinzenz Feenstra 3166e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 3167e674605fSTomáš Golembiovský 3168161a56a9SVinzenz Feenstra #define QGA_MICRO_SECOND_TO_SECOND 1000000 3169161a56a9SVinzenz Feenstra 3170161a56a9SVinzenz Feenstra static double ga_get_login_time(struct utmpx *user_info) 3171161a56a9SVinzenz Feenstra { 3172161a56a9SVinzenz Feenstra double seconds = (double)user_info->ut_tv.tv_sec; 3173161a56a9SVinzenz Feenstra double useconds = (double)user_info->ut_tv.tv_usec; 3174161a56a9SVinzenz Feenstra useconds /= QGA_MICRO_SECOND_TO_SECOND; 3175161a56a9SVinzenz Feenstra return seconds + useconds; 3176161a56a9SVinzenz Feenstra } 3177161a56a9SVinzenz Feenstra 3178b90abbacSVladimir Sementsov-Ogievskiy GuestUserList *qmp_guest_get_users(Error **errp) 3179161a56a9SVinzenz Feenstra { 3180161a56a9SVinzenz Feenstra GHashTable *cache = NULL; 318195b3a8c8SEric Blake GuestUserList *head = NULL, **tail = &head; 3182161a56a9SVinzenz Feenstra struct utmpx *user_info = NULL; 3183161a56a9SVinzenz Feenstra gpointer value = NULL; 3184161a56a9SVinzenz Feenstra GuestUser *user = NULL; 3185161a56a9SVinzenz Feenstra double login_time = 0; 3186161a56a9SVinzenz Feenstra 3187161a56a9SVinzenz Feenstra cache = g_hash_table_new(g_str_hash, g_str_equal); 3188161a56a9SVinzenz Feenstra setutxent(); 3189161a56a9SVinzenz Feenstra 3190161a56a9SVinzenz Feenstra for (;;) { 3191161a56a9SVinzenz Feenstra user_info = getutxent(); 3192161a56a9SVinzenz Feenstra if (user_info == NULL) { 3193161a56a9SVinzenz Feenstra break; 3194161a56a9SVinzenz Feenstra } else if (user_info->ut_type != USER_PROCESS) { 3195161a56a9SVinzenz Feenstra continue; 3196161a56a9SVinzenz Feenstra } else if (g_hash_table_contains(cache, user_info->ut_user)) { 3197161a56a9SVinzenz Feenstra value = g_hash_table_lookup(cache, user_info->ut_user); 3198161a56a9SVinzenz Feenstra user = (GuestUser *)value; 3199161a56a9SVinzenz Feenstra login_time = ga_get_login_time(user_info); 3200161a56a9SVinzenz Feenstra /* We're ensuring the earliest login time to be sent */ 3201161a56a9SVinzenz Feenstra if (login_time < user->login_time) { 3202161a56a9SVinzenz Feenstra user->login_time = login_time; 3203161a56a9SVinzenz Feenstra } 3204161a56a9SVinzenz Feenstra continue; 3205161a56a9SVinzenz Feenstra } 3206161a56a9SVinzenz Feenstra 320795b3a8c8SEric Blake user = g_new0(GuestUser, 1); 320895b3a8c8SEric Blake user->user = g_strdup(user_info->ut_user); 320995b3a8c8SEric Blake user->login_time = ga_get_login_time(user_info); 3210161a56a9SVinzenz Feenstra 321195b3a8c8SEric Blake g_hash_table_insert(cache, user->user, user); 3212161a56a9SVinzenz Feenstra 321395b3a8c8SEric Blake QAPI_LIST_APPEND(tail, user); 3214161a56a9SVinzenz Feenstra } 3215161a56a9SVinzenz Feenstra endutxent(); 3216161a56a9SVinzenz Feenstra g_hash_table_destroy(cache); 3217161a56a9SVinzenz Feenstra return head; 3218161a56a9SVinzenz Feenstra } 3219e674605fSTomáš Golembiovský 3220e674605fSTomáš Golembiovský #else 3221e674605fSTomáš Golembiovský 3222e674605fSTomáš Golembiovský GuestUserList *qmp_guest_get_users(Error **errp) 3223e674605fSTomáš Golembiovský { 3224e674605fSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 3225e674605fSTomáš Golembiovský return NULL; 3226e674605fSTomáš Golembiovský } 3227e674605fSTomáš Golembiovský 3228e674605fSTomáš Golembiovský #endif 32299848f797STomáš Golembiovský 32309848f797STomáš Golembiovský /* Replace escaped special characters with theire real values. The replacement 32319848f797STomáš Golembiovský * is done in place -- returned value is in the original string. 32329848f797STomáš Golembiovský */ 32339848f797STomáš Golembiovský static void ga_osrelease_replace_special(gchar *value) 32349848f797STomáš Golembiovský { 32359848f797STomáš Golembiovský gchar *p, *p2, quote; 32369848f797STomáš Golembiovský 32379848f797STomáš Golembiovský /* Trim the string at first space or semicolon if it is not enclosed in 32389848f797STomáš Golembiovský * single or double quotes. */ 32399848f797STomáš Golembiovský if ((value[0] != '"') || (value[0] == '\'')) { 32409848f797STomáš Golembiovský p = strchr(value, ' '); 32419848f797STomáš Golembiovský if (p != NULL) { 32429848f797STomáš Golembiovský *p = 0; 32439848f797STomáš Golembiovský } 32449848f797STomáš Golembiovský p = strchr(value, ';'); 32459848f797STomáš Golembiovský if (p != NULL) { 32469848f797STomáš Golembiovský *p = 0; 32479848f797STomáš Golembiovský } 32489848f797STomáš Golembiovský return; 32499848f797STomáš Golembiovský } 32509848f797STomáš Golembiovský 32519848f797STomáš Golembiovský quote = value[0]; 32529848f797STomáš Golembiovský p2 = value; 32539848f797STomáš Golembiovský p = value + 1; 32549848f797STomáš Golembiovský while (*p != 0) { 32559848f797STomáš Golembiovský if (*p == '\\') { 32569848f797STomáš Golembiovský p++; 32579848f797STomáš Golembiovský switch (*p) { 32589848f797STomáš Golembiovský case '$': 32599848f797STomáš Golembiovský case '\'': 32609848f797STomáš Golembiovský case '"': 32619848f797STomáš Golembiovský case '\\': 32629848f797STomáš Golembiovský case '`': 32639848f797STomáš Golembiovský break; 32649848f797STomáš Golembiovský default: 32659848f797STomáš Golembiovský /* Keep literal backslash followed by whatever is there */ 32669848f797STomáš Golembiovský p--; 32679848f797STomáš Golembiovský break; 32689848f797STomáš Golembiovský } 32699848f797STomáš Golembiovský } else if (*p == quote) { 32709848f797STomáš Golembiovský *p2 = 0; 32719848f797STomáš Golembiovský break; 32729848f797STomáš Golembiovský } 32739848f797STomáš Golembiovský *(p2++) = *(p++); 32749848f797STomáš Golembiovský } 32759848f797STomáš Golembiovský } 32769848f797STomáš Golembiovský 32779848f797STomáš Golembiovský static GKeyFile *ga_parse_osrelease(const char *fname) 32789848f797STomáš Golembiovský { 32799848f797STomáš Golembiovský gchar *content = NULL; 32809848f797STomáš Golembiovský gchar *content2 = NULL; 32819848f797STomáš Golembiovský GError *err = NULL; 32829848f797STomáš Golembiovský GKeyFile *keys = g_key_file_new(); 32839848f797STomáš Golembiovský const char *group = "[os-release]\n"; 32849848f797STomáš Golembiovský 32859848f797STomáš Golembiovský if (!g_file_get_contents(fname, &content, NULL, &err)) { 32869848f797STomáš Golembiovský slog("failed to read '%s', error: %s", fname, err->message); 32879848f797STomáš Golembiovský goto fail; 32889848f797STomáš Golembiovský } 32899848f797STomáš Golembiovský 32909848f797STomáš Golembiovský if (!g_utf8_validate(content, -1, NULL)) { 32919848f797STomáš Golembiovský slog("file is not utf-8 encoded: %s", fname); 32929848f797STomáš Golembiovský goto fail; 32939848f797STomáš Golembiovský } 32949848f797STomáš Golembiovský content2 = g_strdup_printf("%s%s", group, content); 32959848f797STomáš Golembiovský 32969848f797STomáš Golembiovský if (!g_key_file_load_from_data(keys, content2, -1, G_KEY_FILE_NONE, 32979848f797STomáš Golembiovský &err)) { 32989848f797STomáš Golembiovský slog("failed to parse file '%s', error: %s", fname, err->message); 32999848f797STomáš Golembiovský goto fail; 33009848f797STomáš Golembiovský } 33019848f797STomáš Golembiovský 33029848f797STomáš Golembiovský g_free(content); 33039848f797STomáš Golembiovský g_free(content2); 33049848f797STomáš Golembiovský return keys; 33059848f797STomáš Golembiovský 33069848f797STomáš Golembiovský fail: 33079848f797STomáš Golembiovský g_error_free(err); 33089848f797STomáš Golembiovský g_free(content); 33099848f797STomáš Golembiovský g_free(content2); 33109848f797STomáš Golembiovský g_key_file_free(keys); 33119848f797STomáš Golembiovský return NULL; 33129848f797STomáš Golembiovský } 33139848f797STomáš Golembiovský 33149848f797STomáš Golembiovský GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 33159848f797STomáš Golembiovský { 33169848f797STomáš Golembiovský GuestOSInfo *info = NULL; 33179848f797STomáš Golembiovský struct utsname kinfo; 3318339ca68bSTomáš Golembiovský GKeyFile *osrelease = NULL; 3319339ca68bSTomáš Golembiovský const char *qga_os_release = g_getenv("QGA_OS_RELEASE"); 33209848f797STomáš Golembiovský 33219848f797STomáš Golembiovský info = g_new0(GuestOSInfo, 1); 33229848f797STomáš Golembiovský 33239848f797STomáš Golembiovský if (uname(&kinfo) != 0) { 33249848f797STomáš Golembiovský error_setg_errno(errp, errno, "uname failed"); 33259848f797STomáš Golembiovský } else { 33269848f797STomáš Golembiovský info->has_kernel_version = true; 33279848f797STomáš Golembiovský info->kernel_version = g_strdup(kinfo.version); 33289848f797STomáš Golembiovský info->has_kernel_release = true; 33299848f797STomáš Golembiovský info->kernel_release = g_strdup(kinfo.release); 33309848f797STomáš Golembiovský info->has_machine = true; 33319848f797STomáš Golembiovský info->machine = g_strdup(kinfo.machine); 33329848f797STomáš Golembiovský } 33339848f797STomáš Golembiovský 3334339ca68bSTomáš Golembiovský if (qga_os_release != NULL) { 3335339ca68bSTomáš Golembiovský osrelease = ga_parse_osrelease(qga_os_release); 3336339ca68bSTomáš Golembiovský } else { 33379848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/etc/os-release"); 33389848f797STomáš Golembiovský if (osrelease == NULL) { 33399848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/usr/lib/os-release"); 33409848f797STomáš Golembiovský } 3341339ca68bSTomáš Golembiovský } 33429848f797STomáš Golembiovský 33439848f797STomáš Golembiovský if (osrelease != NULL) { 33449848f797STomáš Golembiovský char *value; 33459848f797STomáš Golembiovský 33469848f797STomáš Golembiovský #define GET_FIELD(field, osfield) do { \ 33479848f797STomáš Golembiovský value = g_key_file_get_value(osrelease, "os-release", osfield, NULL); \ 33489848f797STomáš Golembiovský if (value != NULL) { \ 33499848f797STomáš Golembiovský ga_osrelease_replace_special(value); \ 33509848f797STomáš Golembiovský info->has_ ## field = true; \ 33519848f797STomáš Golembiovský info->field = value; \ 33529848f797STomáš Golembiovský } \ 33539848f797STomáš Golembiovský } while (0) 33549848f797STomáš Golembiovský GET_FIELD(id, "ID"); 33559848f797STomáš Golembiovský GET_FIELD(name, "NAME"); 33569848f797STomáš Golembiovský GET_FIELD(pretty_name, "PRETTY_NAME"); 33579848f797STomáš Golembiovský GET_FIELD(version, "VERSION"); 33589848f797STomáš Golembiovský GET_FIELD(version_id, "VERSION_ID"); 33599848f797STomáš Golembiovský GET_FIELD(variant, "VARIANT"); 33609848f797STomáš Golembiovský GET_FIELD(variant_id, "VARIANT_ID"); 33619848f797STomáš Golembiovský #undef GET_FIELD 33629848f797STomáš Golembiovský 33639848f797STomáš Golembiovský g_key_file_free(osrelease); 33649848f797STomáš Golembiovský } 33659848f797STomáš Golembiovský 33669848f797STomáš Golembiovský return info; 33679848f797STomáš Golembiovský } 33682e4211ceSTomáš Golembiovský 33692e4211ceSTomáš Golembiovský GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 33702e4211ceSTomáš Golembiovský { 33712e4211ceSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 33722e4211ceSTomáš Golembiovský 33732e4211ceSTomáš Golembiovský return NULL; 33742e4211ceSTomáš Golembiovský } 3375548fb0daSMarc-André Lureau 3376548fb0daSMarc-André Lureau #ifndef HOST_NAME_MAX 3377548fb0daSMarc-André Lureau # ifdef _POSIX_HOST_NAME_MAX 3378548fb0daSMarc-André Lureau # define HOST_NAME_MAX _POSIX_HOST_NAME_MAX 3379548fb0daSMarc-André Lureau # else 3380548fb0daSMarc-André Lureau # define HOST_NAME_MAX 255 3381548fb0daSMarc-André Lureau # endif 3382548fb0daSMarc-André Lureau #endif 3383548fb0daSMarc-André Lureau 3384548fb0daSMarc-André Lureau char *qga_get_host_name(Error **errp) 3385548fb0daSMarc-André Lureau { 3386548fb0daSMarc-André Lureau long len = -1; 3387548fb0daSMarc-André Lureau g_autofree char *hostname = NULL; 3388548fb0daSMarc-André Lureau 3389548fb0daSMarc-André Lureau #ifdef _SC_HOST_NAME_MAX 3390548fb0daSMarc-André Lureau len = sysconf(_SC_HOST_NAME_MAX); 3391548fb0daSMarc-André Lureau #endif /* _SC_HOST_NAME_MAX */ 3392548fb0daSMarc-André Lureau 3393548fb0daSMarc-André Lureau if (len < 0) { 3394548fb0daSMarc-André Lureau len = HOST_NAME_MAX; 3395548fb0daSMarc-André Lureau } 3396548fb0daSMarc-André Lureau 3397548fb0daSMarc-André Lureau /* Unfortunately, gethostname() below does not guarantee a 3398548fb0daSMarc-André Lureau * NULL terminated string. Therefore, allocate one byte more 3399548fb0daSMarc-André Lureau * to be sure. */ 3400548fb0daSMarc-André Lureau hostname = g_new0(char, len + 1); 3401548fb0daSMarc-André Lureau 3402548fb0daSMarc-André Lureau if (gethostname(hostname, len) < 0) { 3403548fb0daSMarc-André Lureau error_setg_errno(errp, errno, 3404548fb0daSMarc-André Lureau "cannot get hostname"); 3405548fb0daSMarc-André Lureau return NULL; 3406548fb0daSMarc-André Lureau } 3407548fb0daSMarc-André Lureau 3408548fb0daSMarc-André Lureau return g_steal_pointer(&hostname); 3409548fb0daSMarc-André Lureau } 3410