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> 3625b5ff1aSChen Hanxiao #include <sys/statvfs.h> 3722668881Szhenwei pi #include <linux/nvme_ioctl.h> 38e72c3f2eSMichael Roth 39b616105aSTomáš Golembiovský #ifdef CONFIG_LIBUDEV 40b616105aSTomáš Golembiovský #include <libudev.h> 41b616105aSTomáš Golembiovský #endif 42e72c3f2eSMichael Roth #endif 43e72c3f2eSMichael Roth 44c6cd588bSAlexander Ivanov #ifdef __FreeBSD__ 45c6cd588bSAlexander Ivanov /* 46c6cd588bSAlexander Ivanov * The code under HAVE_GETIFADDRS condition can't be compiled in FreeBSD. 47c6cd588bSAlexander Ivanov * Fix it in one of the following patches. 48c6cd588bSAlexander Ivanov */ 49c6cd588bSAlexander Ivanov #undef HAVE_GETIFADDRS 50c6cd588bSAlexander Ivanov #endif 51c6cd588bSAlexander Ivanov 5259e35c7bSAndrew Deason #ifdef HAVE_GETIFADDRS 5359e35c7bSAndrew Deason #include <arpa/inet.h> 5459e35c7bSAndrew Deason #include <sys/socket.h> 5559e35c7bSAndrew Deason #include <net/if.h> 5659e35c7bSAndrew Deason #include <sys/types.h> 5759e35c7bSAndrew Deason #include <ifaddrs.h> 5859e35c7bSAndrew Deason #ifdef CONFIG_SOLARIS 5959e35c7bSAndrew Deason #include <sys/sockio.h> 6059e35c7bSAndrew Deason #endif 6159e35c7bSAndrew Deason #endif 6259e35c7bSAndrew Deason 6377dbc81bSMarkus Armbruster static void ga_wait_child(pid_t pid, int *status, Error **errp) 64d220a6dfSLuiz Capitulino { 65d220a6dfSLuiz Capitulino pid_t rpid; 66d220a6dfSLuiz Capitulino 67d220a6dfSLuiz Capitulino *status = 0; 68d220a6dfSLuiz Capitulino 69d220a6dfSLuiz Capitulino do { 70d220a6dfSLuiz Capitulino rpid = waitpid(pid, status, 0); 71d220a6dfSLuiz Capitulino } while (rpid == -1 && errno == EINTR); 72d220a6dfSLuiz Capitulino 73d220a6dfSLuiz Capitulino if (rpid == -1) { 7477dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to wait for child (pid: %d)", 7577dbc81bSMarkus Armbruster pid); 76d220a6dfSLuiz Capitulino return; 77d220a6dfSLuiz Capitulino } 78d220a6dfSLuiz Capitulino 79d220a6dfSLuiz Capitulino g_assert(rpid == pid); 80d220a6dfSLuiz Capitulino } 81d220a6dfSLuiz Capitulino 8277dbc81bSMarkus Armbruster void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 83c216e5adSMichael Roth { 84c216e5adSMichael Roth const char *shutdown_flag; 85d220a6dfSLuiz Capitulino Error *local_err = NULL; 86d220a6dfSLuiz Capitulino pid_t pid; 873674838cSLuiz Capitulino int status; 88c216e5adSMichael Roth 89c8ec041dSAndrew Deason #ifdef CONFIG_SOLARIS 90c8ec041dSAndrew Deason const char *powerdown_flag = "-i5"; 91c8ec041dSAndrew Deason const char *halt_flag = "-i0"; 92c8ec041dSAndrew Deason const char *reboot_flag = "-i6"; 93e40762fcSAlexander Ivanov #elif defined(CONFIG_BSD) 94e40762fcSAlexander Ivanov const char *powerdown_flag = "-p"; 95e40762fcSAlexander Ivanov const char *halt_flag = "-h"; 96e40762fcSAlexander Ivanov const char *reboot_flag = "-r"; 97c8ec041dSAndrew Deason #else 98c8ec041dSAndrew Deason const char *powerdown_flag = "-P"; 99c8ec041dSAndrew Deason const char *halt_flag = "-H"; 100c8ec041dSAndrew Deason const char *reboot_flag = "-r"; 101c8ec041dSAndrew Deason #endif 102c8ec041dSAndrew Deason 103c216e5adSMichael Roth slog("guest-shutdown called, mode: %s", mode); 104c216e5adSMichael Roth if (!has_mode || strcmp(mode, "powerdown") == 0) { 105c8ec041dSAndrew Deason shutdown_flag = powerdown_flag; 106c216e5adSMichael Roth } else if (strcmp(mode, "halt") == 0) { 107c8ec041dSAndrew Deason shutdown_flag = halt_flag; 108c216e5adSMichael Roth } else if (strcmp(mode, "reboot") == 0) { 109c8ec041dSAndrew Deason shutdown_flag = reboot_flag; 110c216e5adSMichael Roth } else { 11177dbc81bSMarkus Armbruster error_setg(errp, 112d220a6dfSLuiz Capitulino "mode is invalid (valid values are: halt|powerdown|reboot"); 113c216e5adSMichael Roth return; 114c216e5adSMichael Roth } 115c216e5adSMichael Roth 116d5dd3498SLuiz Capitulino pid = fork(); 117d5dd3498SLuiz Capitulino if (pid == 0) { 118c216e5adSMichael Roth /* child, start the shutdown */ 119c216e5adSMichael Roth setsid(); 1203674838cSLuiz Capitulino reopen_fd_to_null(0); 1213674838cSLuiz Capitulino reopen_fd_to_null(1); 1223674838cSLuiz Capitulino reopen_fd_to_null(2); 123c216e5adSMichael Roth 124c8ec041dSAndrew Deason #ifdef CONFIG_SOLARIS 125c8ec041dSAndrew Deason execl("/sbin/shutdown", "shutdown", shutdown_flag, "-g0", "-y", 126c8ec041dSAndrew Deason "hypervisor initiated shutdown", (char *)NULL); 127e40762fcSAlexander Ivanov #elif defined(CONFIG_BSD) 128e40762fcSAlexander Ivanov execl("/sbin/shutdown", "shutdown", shutdown_flag, "+0", 129e40762fcSAlexander Ivanov "hypervisor initiated shutdown", (char *)NULL); 130c8ec041dSAndrew Deason #else 131fcc41961SMarc-André Lureau execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0", 132fcc41961SMarc-André Lureau "hypervisor initiated shutdown", (char *)NULL); 133c8ec041dSAndrew Deason #endif 1343674838cSLuiz Capitulino _exit(EXIT_FAILURE); 135d5dd3498SLuiz Capitulino } else if (pid < 0) { 13677dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 137d5dd3498SLuiz Capitulino return; 138d5dd3498SLuiz Capitulino } 139d5dd3498SLuiz Capitulino 140d220a6dfSLuiz Capitulino ga_wait_child(pid, &status, &local_err); 14184d18f06SMarkus Armbruster if (local_err) { 14277dbc81bSMarkus Armbruster error_propagate(errp, local_err); 143d220a6dfSLuiz Capitulino return; 144d220a6dfSLuiz Capitulino } 145d220a6dfSLuiz Capitulino 146d220a6dfSLuiz Capitulino if (!WIFEXITED(status)) { 14777dbc81bSMarkus Armbruster error_setg(errp, "child process has terminated abnormally"); 148d220a6dfSLuiz Capitulino return; 149d220a6dfSLuiz Capitulino } 150d220a6dfSLuiz Capitulino 151d220a6dfSLuiz Capitulino if (WEXITSTATUS(status)) { 15277dbc81bSMarkus Armbruster error_setg(errp, "child process has failed to shutdown"); 153d220a6dfSLuiz Capitulino return; 154d220a6dfSLuiz Capitulino } 155d220a6dfSLuiz Capitulino 156085d8134SPeter Maydell /* succeeded */ 157c216e5adSMichael Roth } 158c216e5adSMichael Roth 1592c958923SMichal Privoznik void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 160a1bca57fSLei Li { 161a1bca57fSLei Li int ret; 162a1bca57fSLei Li int status; 163a1bca57fSLei Li pid_t pid; 164a1bca57fSLei Li Error *local_err = NULL; 165a1bca57fSLei Li struct timeval tv; 1665c6096e5SCornelia Huck static const char hwclock_path[] = "/sbin/hwclock"; 1675c6096e5SCornelia Huck static int hwclock_available = -1; 1685c6096e5SCornelia Huck 1695c6096e5SCornelia Huck if (hwclock_available < 0) { 1705c6096e5SCornelia Huck hwclock_available = (access(hwclock_path, X_OK) == 0); 1715c6096e5SCornelia Huck } 1725c6096e5SCornelia Huck 1735c6096e5SCornelia Huck if (!hwclock_available) { 1745c6096e5SCornelia Huck error_setg(errp, QERR_UNSUPPORTED); 1755c6096e5SCornelia Huck return; 1765c6096e5SCornelia Huck } 177a1bca57fSLei Li 1782c958923SMichal Privoznik /* If user has passed a time, validate and set it. */ 1792c958923SMichal Privoznik if (has_time) { 18000d2f370SMarc-André Lureau GDate date = { 0, }; 18100d2f370SMarc-André Lureau 182a1bca57fSLei Li /* year-2038 will overflow in case time_t is 32bit */ 183a1bca57fSLei Li if (time_ns / 1000000000 != (time_t)(time_ns / 1000000000)) { 184a1bca57fSLei Li error_setg(errp, "Time %" PRId64 " is too large", time_ns); 185a1bca57fSLei Li return; 186a1bca57fSLei Li } 187a1bca57fSLei Li 188a1bca57fSLei Li tv.tv_sec = time_ns / 1000000000; 189a1bca57fSLei Li tv.tv_usec = (time_ns % 1000000000) / 1000; 19000d2f370SMarc-André Lureau g_date_set_time_t(&date, tv.tv_sec); 19100d2f370SMarc-André Lureau if (date.year < 1970 || date.year >= 2070) { 19200d2f370SMarc-André Lureau error_setg_errno(errp, errno, "Invalid time"); 19300d2f370SMarc-André Lureau return; 19400d2f370SMarc-André Lureau } 195a1bca57fSLei Li 196a1bca57fSLei Li ret = settimeofday(&tv, NULL); 197a1bca57fSLei Li if (ret < 0) { 198a1bca57fSLei Li error_setg_errno(errp, errno, "Failed to set time to guest"); 199a1bca57fSLei Li return; 200a1bca57fSLei Li } 2012c958923SMichal Privoznik } 202a1bca57fSLei Li 2032c958923SMichal Privoznik /* Now, if user has passed a time to set and the system time is set, we 2042c958923SMichal Privoznik * just need to synchronize the hardware clock. However, if no time was 2052c958923SMichal Privoznik * passed, user is requesting the opposite: set the system time from the 2061634df56SAmos Kong * hardware clock (RTC). */ 207a1bca57fSLei Li pid = fork(); 208a1bca57fSLei Li if (pid == 0) { 209a1bca57fSLei Li setsid(); 210a1bca57fSLei Li reopen_fd_to_null(0); 211a1bca57fSLei Li reopen_fd_to_null(1); 212a1bca57fSLei Li reopen_fd_to_null(2); 213a1bca57fSLei Li 2142c958923SMichal Privoznik /* Use '/sbin/hwclock -w' to set RTC from the system time, 2152c958923SMichal Privoznik * or '/sbin/hwclock -s' to set the system time from RTC. */ 216fcc41961SMarc-André Lureau execl(hwclock_path, "hwclock", has_time ? "-w" : "-s", NULL); 217a1bca57fSLei Li _exit(EXIT_FAILURE); 218a1bca57fSLei Li } else if (pid < 0) { 219a1bca57fSLei Li error_setg_errno(errp, errno, "failed to create child process"); 220a1bca57fSLei Li return; 221a1bca57fSLei Li } 222a1bca57fSLei Li 223a1bca57fSLei Li ga_wait_child(pid, &status, &local_err); 22484d18f06SMarkus Armbruster if (local_err) { 225a1bca57fSLei Li error_propagate(errp, local_err); 226a1bca57fSLei Li return; 227a1bca57fSLei Li } 228a1bca57fSLei Li 229a1bca57fSLei Li if (!WIFEXITED(status)) { 230a1bca57fSLei Li error_setg(errp, "child process has terminated abnormally"); 231a1bca57fSLei Li return; 232a1bca57fSLei Li } 233a1bca57fSLei Li 234a1bca57fSLei Li if (WEXITSTATUS(status)) { 235a1bca57fSLei Li error_setg(errp, "hwclock failed to set hardware clock to system time"); 236a1bca57fSLei Li return; 237a1bca57fSLei Li } 238a1bca57fSLei Li } 239a1bca57fSLei Li 240895b00f6SMarc-André Lureau typedef enum { 241895b00f6SMarc-André Lureau RW_STATE_NEW, 242895b00f6SMarc-André Lureau RW_STATE_READING, 243895b00f6SMarc-André Lureau RW_STATE_WRITING, 244895b00f6SMarc-André Lureau } RwState; 245895b00f6SMarc-André Lureau 2465d3586b8SPhilippe Mathieu-Daudé struct GuestFileHandle { 247c216e5adSMichael Roth uint64_t id; 248c216e5adSMichael Roth FILE *fh; 249895b00f6SMarc-André Lureau RwState state; 250c216e5adSMichael Roth QTAILQ_ENTRY(GuestFileHandle) next; 2515d3586b8SPhilippe Mathieu-Daudé }; 252c216e5adSMichael Roth 253c216e5adSMichael Roth static struct { 254c216e5adSMichael Roth QTAILQ_HEAD(, GuestFileHandle) filehandles; 255b4fe97c8SDenis V. Lunev } guest_file_state = { 256b4fe97c8SDenis V. Lunev .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 257b4fe97c8SDenis V. Lunev }; 258c216e5adSMichael Roth 25939097dafSMichael Roth static int64_t guest_file_handle_add(FILE *fh, Error **errp) 260c216e5adSMichael Roth { 261c216e5adSMichael Roth GuestFileHandle *gfh; 26239097dafSMichael Roth int64_t handle; 26339097dafSMichael Roth 26439097dafSMichael Roth handle = ga_get_fd_handle(ga_state, errp); 265a903f40cSMarkus Armbruster if (handle < 0) { 266a903f40cSMarkus Armbruster return -1; 26739097dafSMichael Roth } 268c216e5adSMichael Roth 269f3a06403SMarkus Armbruster gfh = g_new0(GuestFileHandle, 1); 27039097dafSMichael Roth gfh->id = handle; 271c216e5adSMichael Roth gfh->fh = fh; 272c216e5adSMichael Roth QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 27339097dafSMichael Roth 27439097dafSMichael Roth return handle; 275c216e5adSMichael Roth } 276c216e5adSMichael Roth 2775d3586b8SPhilippe Mathieu-Daudé GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 278c216e5adSMichael Roth { 279c216e5adSMichael Roth GuestFileHandle *gfh; 280c216e5adSMichael Roth 281c216e5adSMichael Roth QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) 282c216e5adSMichael Roth { 283c216e5adSMichael Roth if (gfh->id == id) { 284c216e5adSMichael Roth return gfh; 285c216e5adSMichael Roth } 286c216e5adSMichael Roth } 287c216e5adSMichael Roth 28877dbc81bSMarkus Armbruster error_setg(errp, "handle '%" PRId64 "' has not been found", id); 289c216e5adSMichael Roth return NULL; 290c216e5adSMichael Roth } 291c216e5adSMichael Roth 292c689b4f1SLaszlo Ersek typedef const char * const ccpc; 293c689b4f1SLaszlo Ersek 2948fe6bbcaSLaszlo Ersek #ifndef O_BINARY 2958fe6bbcaSLaszlo Ersek #define O_BINARY 0 2968fe6bbcaSLaszlo Ersek #endif 2978fe6bbcaSLaszlo Ersek 298c689b4f1SLaszlo Ersek /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */ 299c689b4f1SLaszlo Ersek static const struct { 300c689b4f1SLaszlo Ersek ccpc *forms; 301c689b4f1SLaszlo Ersek int oflag_base; 302c689b4f1SLaszlo Ersek } guest_file_open_modes[] = { 3038fe6bbcaSLaszlo Ersek { (ccpc[]){ "r", NULL }, O_RDONLY }, 3048fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb", NULL }, O_RDONLY | O_BINARY }, 3058fe6bbcaSLaszlo Ersek { (ccpc[]){ "w", NULL }, O_WRONLY | O_CREAT | O_TRUNC }, 3068fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb", NULL }, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY }, 3078fe6bbcaSLaszlo Ersek { (ccpc[]){ "a", NULL }, O_WRONLY | O_CREAT | O_APPEND }, 3088fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab", NULL }, O_WRONLY | O_CREAT | O_APPEND | O_BINARY }, 3098fe6bbcaSLaszlo Ersek { (ccpc[]){ "r+", NULL }, O_RDWR }, 3108fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb+", "r+b", NULL }, O_RDWR | O_BINARY }, 3118fe6bbcaSLaszlo Ersek { (ccpc[]){ "w+", NULL }, O_RDWR | O_CREAT | O_TRUNC }, 3128fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb+", "w+b", NULL }, O_RDWR | O_CREAT | O_TRUNC | O_BINARY }, 3138fe6bbcaSLaszlo Ersek { (ccpc[]){ "a+", NULL }, O_RDWR | O_CREAT | O_APPEND }, 3148fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab+", "a+b", NULL }, O_RDWR | O_CREAT | O_APPEND | O_BINARY } 315c689b4f1SLaszlo Ersek }; 316c689b4f1SLaszlo Ersek 317c689b4f1SLaszlo Ersek static int 31877dbc81bSMarkus Armbruster find_open_flag(const char *mode_str, Error **errp) 319c689b4f1SLaszlo Ersek { 320c689b4f1SLaszlo Ersek unsigned mode; 321c689b4f1SLaszlo Ersek 322c689b4f1SLaszlo Ersek for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 323c689b4f1SLaszlo Ersek ccpc *form; 324c689b4f1SLaszlo Ersek 325c689b4f1SLaszlo Ersek form = guest_file_open_modes[mode].forms; 326c689b4f1SLaszlo Ersek while (*form != NULL && strcmp(*form, mode_str) != 0) { 327c689b4f1SLaszlo Ersek ++form; 328c689b4f1SLaszlo Ersek } 329c689b4f1SLaszlo Ersek if (*form != NULL) { 330c689b4f1SLaszlo Ersek break; 331c689b4f1SLaszlo Ersek } 332c689b4f1SLaszlo Ersek } 333c689b4f1SLaszlo Ersek 334c689b4f1SLaszlo Ersek if (mode == ARRAY_SIZE(guest_file_open_modes)) { 33577dbc81bSMarkus Armbruster error_setg(errp, "invalid file open mode '%s'", mode_str); 336c689b4f1SLaszlo Ersek return -1; 337c689b4f1SLaszlo Ersek } 338c689b4f1SLaszlo Ersek return guest_file_open_modes[mode].oflag_base | O_NOCTTY | O_NONBLOCK; 339c689b4f1SLaszlo Ersek } 340c689b4f1SLaszlo Ersek 341c689b4f1SLaszlo Ersek #define DEFAULT_NEW_FILE_MODE (S_IRUSR | S_IWUSR | \ 342c689b4f1SLaszlo Ersek S_IRGRP | S_IWGRP | \ 343c689b4f1SLaszlo Ersek S_IROTH | S_IWOTH) 344c689b4f1SLaszlo Ersek 345c689b4f1SLaszlo Ersek static FILE * 34677dbc81bSMarkus Armbruster safe_open_or_create(const char *path, const char *mode, Error **errp) 347c689b4f1SLaszlo Ersek { 348c689b4f1SLaszlo Ersek int oflag; 34969f56c14SMarc-André Lureau int fd = -1; 35069f56c14SMarc-André Lureau FILE *f = NULL; 351c689b4f1SLaszlo Ersek 35269f56c14SMarc-André Lureau oflag = find_open_flag(mode, errp); 35369f56c14SMarc-André Lureau if (oflag < 0) { 35469f56c14SMarc-André Lureau goto end; 35569f56c14SMarc-André Lureau } 356c689b4f1SLaszlo Ersek 357c689b4f1SLaszlo Ersek /* If the caller wants / allows creation of a new file, we implement it 358c689b4f1SLaszlo Ersek * with a two step process: open() + (open() / fchmod()). 359c689b4f1SLaszlo Ersek * 360c689b4f1SLaszlo Ersek * First we insist on creating the file exclusively as a new file. If 361c689b4f1SLaszlo Ersek * that succeeds, we're free to set any file-mode bits on it. (The 362c689b4f1SLaszlo Ersek * motivation is that we want to set those file-mode bits independently 363c689b4f1SLaszlo Ersek * of the current umask.) 364c689b4f1SLaszlo Ersek * 365c689b4f1SLaszlo Ersek * If the exclusive creation fails because the file already exists 366c689b4f1SLaszlo Ersek * (EEXIST is not possible for any other reason), we just attempt to 367c689b4f1SLaszlo Ersek * open the file, but in this case we won't be allowed to change the 368c689b4f1SLaszlo Ersek * file-mode bits on the preexistent file. 369c689b4f1SLaszlo Ersek * 370c689b4f1SLaszlo Ersek * The pathname should never disappear between the two open()s in 371c689b4f1SLaszlo Ersek * practice. If it happens, then someone very likely tried to race us. 372c689b4f1SLaszlo Ersek * In this case just go ahead and report the ENOENT from the second 373c689b4f1SLaszlo Ersek * open() to the caller. 374c689b4f1SLaszlo Ersek * 375c689b4f1SLaszlo Ersek * If the caller wants to open a preexistent file, then the first 376c689b4f1SLaszlo Ersek * open() is decisive and its third argument is ignored, and the second 377c689b4f1SLaszlo Ersek * open() and the fchmod() are never called. 378c689b4f1SLaszlo Ersek */ 3791a89a17bSMarc-André Lureau fd = qga_open_cloexec(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0); 380c689b4f1SLaszlo Ersek if (fd == -1 && errno == EEXIST) { 381c689b4f1SLaszlo Ersek oflag &= ~(unsigned)O_CREAT; 3821a89a17bSMarc-André Lureau fd = qga_open_cloexec(path, oflag, 0); 383c689b4f1SLaszlo Ersek } 384c689b4f1SLaszlo Ersek if (fd == -1) { 38569f56c14SMarc-André Lureau error_setg_errno(errp, errno, 38669f56c14SMarc-André Lureau "failed to open file '%s' (mode: '%s')", 38769f56c14SMarc-André Lureau path, mode); 38869f56c14SMarc-André Lureau goto end; 38969f56c14SMarc-André Lureau } 39069f56c14SMarc-André Lureau 391c689b4f1SLaszlo Ersek if ((oflag & O_CREAT) && fchmod(fd, DEFAULT_NEW_FILE_MODE) == -1) { 39269f56c14SMarc-André Lureau error_setg_errno(errp, errno, "failed to set permission " 393c689b4f1SLaszlo Ersek "0%03o on new file '%s' (mode: '%s')", 394c689b4f1SLaszlo Ersek (unsigned)DEFAULT_NEW_FILE_MODE, path, mode); 39569f56c14SMarc-André Lureau goto end; 39669f56c14SMarc-André Lureau } 397c689b4f1SLaszlo Ersek 398c689b4f1SLaszlo Ersek f = fdopen(fd, mode); 399c689b4f1SLaszlo Ersek if (f == NULL) { 40069f56c14SMarc-André Lureau error_setg_errno(errp, errno, "failed to associate stdio stream with " 40169f56c14SMarc-André Lureau "file descriptor %d, file '%s' (mode: '%s')", 40269f56c14SMarc-André Lureau fd, path, mode); 403c689b4f1SLaszlo Ersek } 404c689b4f1SLaszlo Ersek 40569f56c14SMarc-André Lureau end: 40669f56c14SMarc-André Lureau if (f == NULL && fd != -1) { 407c689b4f1SLaszlo Ersek close(fd); 4082b720018SLaszlo Ersek if (oflag & O_CREAT) { 4092b720018SLaszlo Ersek unlink(path); 4102b720018SLaszlo Ersek } 411c689b4f1SLaszlo Ersek } 41269f56c14SMarc-André Lureau return f; 413c689b4f1SLaszlo Ersek } 414c689b4f1SLaszlo Ersek 41577dbc81bSMarkus Armbruster int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, 41677dbc81bSMarkus Armbruster Error **errp) 417c216e5adSMichael Roth { 418c216e5adSMichael Roth FILE *fh; 419c689b4f1SLaszlo Ersek Error *local_err = NULL; 42085b6f6f5SSimon Zolin int64_t handle; 421c216e5adSMichael Roth 422c216e5adSMichael Roth if (!has_mode) { 423c216e5adSMichael Roth mode = "r"; 424c216e5adSMichael Roth } 425c216e5adSMichael Roth slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 426c689b4f1SLaszlo Ersek fh = safe_open_or_create(path, mode, &local_err); 427c689b4f1SLaszlo Ersek if (local_err != NULL) { 42877dbc81bSMarkus Armbruster error_propagate(errp, local_err); 429c216e5adSMichael Roth return -1; 430c216e5adSMichael Roth } 431c216e5adSMichael Roth 432c216e5adSMichael Roth /* set fd non-blocking to avoid common use cases (like reading from a 433c216e5adSMichael Roth * named pipe) from hanging the agent 434c216e5adSMichael Roth */ 435b0a8f9adSMarc-André Lureau if (!g_unix_set_fd_nonblocking(fileno(fh), true, NULL)) { 436b0a8f9adSMarc-André Lureau fclose(fh); 437b0a8f9adSMarc-André Lureau error_setg_errno(errp, errno, "Failed to set FD nonblocking"); 438b0a8f9adSMarc-André Lureau return -1; 439b0a8f9adSMarc-André Lureau } 440c216e5adSMichael Roth 44177dbc81bSMarkus Armbruster handle = guest_file_handle_add(fh, errp); 442a903f40cSMarkus Armbruster if (handle < 0) { 44339097dafSMichael Roth fclose(fh); 44439097dafSMichael Roth return -1; 44539097dafSMichael Roth } 44639097dafSMichael Roth 447d607a523SStefan Weil slog("guest-file-open, handle: %" PRId64, handle); 44839097dafSMichael Roth return handle; 449c216e5adSMichael Roth } 450c216e5adSMichael Roth 45177dbc81bSMarkus Armbruster void qmp_guest_file_close(int64_t handle, Error **errp) 452c216e5adSMichael Roth { 45377dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 454c216e5adSMichael Roth int ret; 455c216e5adSMichael Roth 456d607a523SStefan Weil slog("guest-file-close called, handle: %" PRId64, handle); 457c216e5adSMichael Roth if (!gfh) { 458c216e5adSMichael Roth return; 459c216e5adSMichael Roth } 460c216e5adSMichael Roth 461c216e5adSMichael Roth ret = fclose(gfh->fh); 4623ac4b7c5SLuiz Capitulino if (ret == EOF) { 46377dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to close handle"); 464c216e5adSMichael Roth return; 465c216e5adSMichael Roth } 466c216e5adSMichael Roth 467c216e5adSMichael Roth QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 468c216e5adSMichael Roth g_free(gfh); 469c216e5adSMichael Roth } 470c216e5adSMichael Roth 471ead83a13SPhilippe Mathieu-Daudé GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 47277dbc81bSMarkus Armbruster int64_t count, Error **errp) 473c216e5adSMichael Roth { 474c216e5adSMichael Roth GuestFileRead *read_data = NULL; 475c216e5adSMichael Roth guchar *buf; 476ead83a13SPhilippe Mathieu-Daudé FILE *fh = gfh->fh; 477c216e5adSMichael Roth size_t read_count; 478c216e5adSMichael Roth 479895b00f6SMarc-André Lureau /* explicitly flush when switching from writing to reading */ 480895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_WRITING) { 481895b00f6SMarc-André Lureau int ret = fflush(fh); 482895b00f6SMarc-André Lureau if (ret == EOF) { 483895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to flush file"); 484895b00f6SMarc-André Lureau return NULL; 485895b00f6SMarc-André Lureau } 486895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 487895b00f6SMarc-André Lureau } 488895b00f6SMarc-André Lureau 489c216e5adSMichael Roth buf = g_malloc0(count + 1); 490c216e5adSMichael Roth read_count = fread(buf, 1, count, fh); 491c216e5adSMichael Roth if (ferror(fh)) { 49277dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to read file"); 493c216e5adSMichael Roth } else { 494c216e5adSMichael Roth buf[read_count] = 0; 495f3a06403SMarkus Armbruster read_data = g_new0(GuestFileRead, 1); 496c216e5adSMichael Roth read_data->count = read_count; 497c216e5adSMichael Roth read_data->eof = feof(fh); 498c216e5adSMichael Roth if (read_count) { 499c216e5adSMichael Roth read_data->buf_b64 = g_base64_encode(buf, read_count); 500c216e5adSMichael Roth } 501895b00f6SMarc-André Lureau gfh->state = RW_STATE_READING; 502c216e5adSMichael Roth } 503c216e5adSMichael Roth g_free(buf); 504c216e5adSMichael Roth clearerr(fh); 505c216e5adSMichael Roth 506c216e5adSMichael Roth return read_data; 507c216e5adSMichael Roth } 508c216e5adSMichael Roth 509c216e5adSMichael Roth GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 51077dbc81bSMarkus Armbruster bool has_count, int64_t count, 51177dbc81bSMarkus Armbruster Error **errp) 512c216e5adSMichael Roth { 513c216e5adSMichael Roth GuestFileWrite *write_data = NULL; 514c216e5adSMichael Roth guchar *buf; 515c216e5adSMichael Roth gsize buf_len; 516c216e5adSMichael Roth int write_count; 51777dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 518c216e5adSMichael Roth FILE *fh; 519c216e5adSMichael Roth 520c216e5adSMichael Roth if (!gfh) { 521c216e5adSMichael Roth return NULL; 522c216e5adSMichael Roth } 523c216e5adSMichael Roth 524c216e5adSMichael Roth fh = gfh->fh; 525895b00f6SMarc-André Lureau 526895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_READING) { 527895b00f6SMarc-André Lureau int ret = fseek(fh, 0, SEEK_CUR); 528895b00f6SMarc-André Lureau if (ret == -1) { 529895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to seek file"); 530895b00f6SMarc-André Lureau return NULL; 531895b00f6SMarc-André Lureau } 532895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 533895b00f6SMarc-André Lureau } 534895b00f6SMarc-André Lureau 535920639caSDaniel P. Berrange buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 536920639caSDaniel P. Berrange if (!buf) { 537920639caSDaniel P. Berrange return NULL; 538920639caSDaniel P. Berrange } 539c216e5adSMichael Roth 540c216e5adSMichael Roth if (!has_count) { 541c216e5adSMichael Roth count = buf_len; 542c216e5adSMichael Roth } else if (count < 0 || count > buf_len) { 54377dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 544db3edb66SLuiz Capitulino count); 545c216e5adSMichael Roth g_free(buf); 546c216e5adSMichael Roth return NULL; 547c216e5adSMichael Roth } 548c216e5adSMichael Roth 549c216e5adSMichael Roth write_count = fwrite(buf, 1, count, fh); 550c216e5adSMichael Roth if (ferror(fh)) { 55177dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to write to file"); 552d607a523SStefan Weil slog("guest-file-write failed, handle: %" PRId64, handle); 553c216e5adSMichael Roth } else { 554f3a06403SMarkus Armbruster write_data = g_new0(GuestFileWrite, 1); 555c216e5adSMichael Roth write_data->count = write_count; 556c216e5adSMichael Roth write_data->eof = feof(fh); 557895b00f6SMarc-André Lureau gfh->state = RW_STATE_WRITING; 558c216e5adSMichael Roth } 559c216e5adSMichael Roth g_free(buf); 560c216e5adSMichael Roth clearerr(fh); 561c216e5adSMichael Roth 562c216e5adSMichael Roth return write_data; 563c216e5adSMichael Roth } 564c216e5adSMichael Roth 565c216e5adSMichael Roth struct GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 5660b4b4938SEric Blake GuestFileWhence *whence_code, 5670b4b4938SEric Blake Error **errp) 568c216e5adSMichael Roth { 56977dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 570c216e5adSMichael Roth GuestFileSeek *seek_data = NULL; 571c216e5adSMichael Roth FILE *fh; 572c216e5adSMichael Roth int ret; 5730a982b1bSEric Blake int whence; 5740b4b4938SEric Blake Error *err = NULL; 575c216e5adSMichael Roth 576c216e5adSMichael Roth if (!gfh) { 577c216e5adSMichael Roth return NULL; 578c216e5adSMichael Roth } 579c216e5adSMichael Roth 5800a982b1bSEric Blake /* We stupidly exposed 'whence':'int' in our qapi */ 5810b4b4938SEric Blake whence = ga_parse_whence(whence_code, &err); 5820b4b4938SEric Blake if (err) { 5830b4b4938SEric Blake error_propagate(errp, err); 5840a982b1bSEric Blake return NULL; 5850a982b1bSEric Blake } 5860a982b1bSEric Blake 587c216e5adSMichael Roth fh = gfh->fh; 588c216e5adSMichael Roth ret = fseek(fh, offset, whence); 589c216e5adSMichael Roth if (ret == -1) { 59077dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to seek file"); 591895b00f6SMarc-André Lureau if (errno == ESPIPE) { 592895b00f6SMarc-André Lureau /* file is non-seekable, stdio shouldn't be buffering anyways */ 593895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 594895b00f6SMarc-André Lureau } 595c216e5adSMichael Roth } else { 59610b7c5ddSMarkus Armbruster seek_data = g_new0(GuestFileSeek, 1); 597c216e5adSMichael Roth seek_data->position = ftell(fh); 598c216e5adSMichael Roth seek_data->eof = feof(fh); 599895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 600c216e5adSMichael Roth } 601c216e5adSMichael Roth clearerr(fh); 602c216e5adSMichael Roth 603c216e5adSMichael Roth return seek_data; 604c216e5adSMichael Roth } 605c216e5adSMichael Roth 60677dbc81bSMarkus Armbruster void qmp_guest_file_flush(int64_t handle, Error **errp) 607c216e5adSMichael Roth { 60877dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 609c216e5adSMichael Roth FILE *fh; 610c216e5adSMichael Roth int ret; 611c216e5adSMichael Roth 612c216e5adSMichael Roth if (!gfh) { 613c216e5adSMichael Roth return; 614c216e5adSMichael Roth } 615c216e5adSMichael Roth 616c216e5adSMichael Roth fh = gfh->fh; 617c216e5adSMichael Roth ret = fflush(fh); 618c216e5adSMichael Roth if (ret == EOF) { 61977dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to flush file"); 620895b00f6SMarc-André Lureau } else { 621895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 622c216e5adSMichael Roth } 623c216e5adSMichael Roth } 624c216e5adSMichael Roth 625eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) 626518b0d80SAlexander Ivanov void free_fs_mount_list(FsMountList *mounts) 627c216e5adSMichael Roth { 628af02203fSPaolo Bonzini FsMount *mount, *temp; 629c216e5adSMichael Roth 6309e8aded4SMichael Roth if (!mounts) { 6319e8aded4SMichael Roth return; 6329e8aded4SMichael Roth } 6339e8aded4SMichael Roth 6349e8aded4SMichael Roth QTAILQ_FOREACH_SAFE(mount, mounts, next, temp) { 6359e8aded4SMichael Roth QTAILQ_REMOVE(mounts, mount, next); 636c216e5adSMichael Roth g_free(mount->dirname); 637c216e5adSMichael Roth g_free(mount->devtype); 638c216e5adSMichael Roth g_free(mount); 639c216e5adSMichael Roth } 6409e8aded4SMichael Roth } 641eab5fd59SPaolo Bonzini #endif 642eab5fd59SPaolo Bonzini 643eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) 644bad0001eSAlexander Ivanov typedef enum { 645bad0001eSAlexander Ivanov FSFREEZE_HOOK_THAW = 0, 646bad0001eSAlexander Ivanov FSFREEZE_HOOK_FREEZE, 647bad0001eSAlexander Ivanov } FsfreezeHookArg; 648bad0001eSAlexander Ivanov 649bad0001eSAlexander Ivanov static const char *fsfreeze_hook_arg_string[] = { 650bad0001eSAlexander Ivanov "thaw", 651bad0001eSAlexander Ivanov "freeze", 652bad0001eSAlexander Ivanov }; 653bad0001eSAlexander Ivanov 654bad0001eSAlexander Ivanov static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp) 655bad0001eSAlexander Ivanov { 656bad0001eSAlexander Ivanov int status; 657bad0001eSAlexander Ivanov pid_t pid; 658bad0001eSAlexander Ivanov const char *hook; 659bad0001eSAlexander Ivanov const char *arg_str = fsfreeze_hook_arg_string[arg]; 660bad0001eSAlexander Ivanov Error *local_err = NULL; 661bad0001eSAlexander Ivanov 662bad0001eSAlexander Ivanov hook = ga_fsfreeze_hook(ga_state); 663bad0001eSAlexander Ivanov if (!hook) { 664bad0001eSAlexander Ivanov return; 665bad0001eSAlexander Ivanov } 666bad0001eSAlexander Ivanov if (access(hook, X_OK) != 0) { 667bad0001eSAlexander Ivanov error_setg_errno(errp, errno, "can't access fsfreeze hook '%s'", hook); 668bad0001eSAlexander Ivanov return; 669bad0001eSAlexander Ivanov } 670bad0001eSAlexander Ivanov 671bad0001eSAlexander Ivanov slog("executing fsfreeze hook with arg '%s'", arg_str); 672bad0001eSAlexander Ivanov pid = fork(); 673bad0001eSAlexander Ivanov if (pid == 0) { 674bad0001eSAlexander Ivanov setsid(); 675bad0001eSAlexander Ivanov reopen_fd_to_null(0); 676bad0001eSAlexander Ivanov reopen_fd_to_null(1); 677bad0001eSAlexander Ivanov reopen_fd_to_null(2); 678bad0001eSAlexander Ivanov 679bad0001eSAlexander Ivanov execl(hook, hook, arg_str, NULL); 680bad0001eSAlexander Ivanov _exit(EXIT_FAILURE); 681bad0001eSAlexander Ivanov } else if (pid < 0) { 682bad0001eSAlexander Ivanov error_setg_errno(errp, errno, "failed to create child process"); 683bad0001eSAlexander Ivanov return; 684bad0001eSAlexander Ivanov } 685bad0001eSAlexander Ivanov 686bad0001eSAlexander Ivanov ga_wait_child(pid, &status, &local_err); 687bad0001eSAlexander Ivanov if (local_err) { 688bad0001eSAlexander Ivanov error_propagate(errp, local_err); 689bad0001eSAlexander Ivanov return; 690bad0001eSAlexander Ivanov } 691bad0001eSAlexander Ivanov 692bad0001eSAlexander Ivanov if (!WIFEXITED(status)) { 693bad0001eSAlexander Ivanov error_setg(errp, "fsfreeze hook has terminated abnormally"); 694bad0001eSAlexander Ivanov return; 695bad0001eSAlexander Ivanov } 696bad0001eSAlexander Ivanov 697bad0001eSAlexander Ivanov status = WEXITSTATUS(status); 698bad0001eSAlexander Ivanov if (status) { 699bad0001eSAlexander Ivanov error_setg(errp, "fsfreeze hook has failed with status %d", status); 700bad0001eSAlexander Ivanov return; 701bad0001eSAlexander Ivanov } 702bad0001eSAlexander Ivanov } 703bad0001eSAlexander Ivanov 704bad0001eSAlexander Ivanov /* 705bad0001eSAlexander Ivanov * Return status of freeze/thaw 706bad0001eSAlexander Ivanov */ 707bad0001eSAlexander Ivanov GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 708bad0001eSAlexander Ivanov { 709bad0001eSAlexander Ivanov if (ga_is_frozen(ga_state)) { 710bad0001eSAlexander Ivanov return GUEST_FSFREEZE_STATUS_FROZEN; 711bad0001eSAlexander Ivanov } 712bad0001eSAlexander Ivanov 713bad0001eSAlexander Ivanov return GUEST_FSFREEZE_STATUS_THAWED; 714bad0001eSAlexander Ivanov } 715bad0001eSAlexander Ivanov 716bad0001eSAlexander Ivanov int64_t qmp_guest_fsfreeze_freeze(Error **errp) 717bad0001eSAlexander Ivanov { 718bad0001eSAlexander Ivanov return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 719bad0001eSAlexander Ivanov } 720bad0001eSAlexander Ivanov 721bad0001eSAlexander Ivanov int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 722bad0001eSAlexander Ivanov strList *mountpoints, 723bad0001eSAlexander Ivanov Error **errp) 724bad0001eSAlexander Ivanov { 725bad0001eSAlexander Ivanov int ret; 726bad0001eSAlexander Ivanov FsMountList mounts; 727bad0001eSAlexander Ivanov Error *local_err = NULL; 728bad0001eSAlexander Ivanov 729bad0001eSAlexander Ivanov slog("guest-fsfreeze called"); 730bad0001eSAlexander Ivanov 731bad0001eSAlexander Ivanov execute_fsfreeze_hook(FSFREEZE_HOOK_FREEZE, &local_err); 732bad0001eSAlexander Ivanov if (local_err) { 733bad0001eSAlexander Ivanov error_propagate(errp, local_err); 734bad0001eSAlexander Ivanov return -1; 735bad0001eSAlexander Ivanov } 736bad0001eSAlexander Ivanov 737bad0001eSAlexander Ivanov QTAILQ_INIT(&mounts); 738bad0001eSAlexander Ivanov if (!build_fs_mount_list(&mounts, &local_err)) { 739bad0001eSAlexander Ivanov error_propagate(errp, local_err); 740bad0001eSAlexander Ivanov return -1; 741bad0001eSAlexander Ivanov } 742bad0001eSAlexander Ivanov 743bad0001eSAlexander Ivanov /* cannot risk guest agent blocking itself on a write in this state */ 744bad0001eSAlexander Ivanov ga_set_frozen(ga_state); 745bad0001eSAlexander Ivanov 746bad0001eSAlexander Ivanov ret = qmp_guest_fsfreeze_do_freeze_list(has_mountpoints, mountpoints, 747bad0001eSAlexander Ivanov mounts, errp); 748bad0001eSAlexander Ivanov 749bad0001eSAlexander Ivanov free_fs_mount_list(&mounts); 750bad0001eSAlexander Ivanov /* We may not issue any FIFREEZE here. 751bad0001eSAlexander Ivanov * Just unset ga_state here and ready for the next call. 752bad0001eSAlexander Ivanov */ 753bad0001eSAlexander Ivanov if (ret == 0) { 754bad0001eSAlexander Ivanov ga_unset_frozen(ga_state); 755bad0001eSAlexander Ivanov } else if (ret < 0) { 756bad0001eSAlexander Ivanov qmp_guest_fsfreeze_thaw(NULL); 757bad0001eSAlexander Ivanov } 758bad0001eSAlexander Ivanov return ret; 759bad0001eSAlexander Ivanov } 760bad0001eSAlexander Ivanov 761bad0001eSAlexander Ivanov int64_t qmp_guest_fsfreeze_thaw(Error **errp) 762bad0001eSAlexander Ivanov { 763bad0001eSAlexander Ivanov int ret; 764bad0001eSAlexander Ivanov 765bad0001eSAlexander Ivanov ret = qmp_guest_fsfreeze_do_thaw(errp); 766bad0001eSAlexander Ivanov if (ret >= 0) { 767bad0001eSAlexander Ivanov ga_unset_frozen(ga_state); 768bad0001eSAlexander Ivanov execute_fsfreeze_hook(FSFREEZE_HOOK_THAW, errp); 769bad0001eSAlexander Ivanov } else { 770bad0001eSAlexander Ivanov ret = 0; 771bad0001eSAlexander Ivanov } 772bad0001eSAlexander Ivanov 773bad0001eSAlexander Ivanov return ret; 774bad0001eSAlexander Ivanov } 775bad0001eSAlexander Ivanov 776bad0001eSAlexander Ivanov static void guest_fsfreeze_cleanup(void) 777bad0001eSAlexander Ivanov { 778bad0001eSAlexander Ivanov Error *err = NULL; 779bad0001eSAlexander Ivanov 780bad0001eSAlexander Ivanov if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 781bad0001eSAlexander Ivanov qmp_guest_fsfreeze_thaw(&err); 782bad0001eSAlexander Ivanov if (err) { 783bad0001eSAlexander Ivanov slog("failed to clean up frozen filesystems: %s", 784bad0001eSAlexander Ivanov error_get_pretty(err)); 785bad0001eSAlexander Ivanov error_free(err); 786bad0001eSAlexander Ivanov } 787bad0001eSAlexander Ivanov } 788bad0001eSAlexander Ivanov } 789bad0001eSAlexander Ivanov #endif 790bad0001eSAlexander Ivanov 791bad0001eSAlexander Ivanov /* linux-specific implementations. avoid this if at all possible. */ 792bad0001eSAlexander Ivanov #if defined(__linux__) 793bad0001eSAlexander Ivanov #if defined(CONFIG_FSFREEZE) 794c216e5adSMichael Roth 79546d4c572STomoki Sekiyama static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) 79646d4c572STomoki Sekiyama { 79746d4c572STomoki Sekiyama char *path; 79846d4c572STomoki Sekiyama char *dpath; 79946d4c572STomoki Sekiyama char *driver = NULL; 80046d4c572STomoki Sekiyama char buf[PATH_MAX]; 80146d4c572STomoki Sekiyama ssize_t len; 80246d4c572STomoki Sekiyama 80346d4c572STomoki Sekiyama path = g_strndup(syspath, pathlen); 80446d4c572STomoki Sekiyama dpath = g_strdup_printf("%s/driver", path); 80546d4c572STomoki Sekiyama len = readlink(dpath, buf, sizeof(buf) - 1); 80646d4c572STomoki Sekiyama if (len != -1) { 80746d4c572STomoki Sekiyama buf[len] = 0; 8083e015d81SJulia Suvorova driver = g_path_get_basename(buf); 80946d4c572STomoki Sekiyama } 81046d4c572STomoki Sekiyama g_free(dpath); 81146d4c572STomoki Sekiyama g_free(path); 81246d4c572STomoki Sekiyama return driver; 81346d4c572STomoki Sekiyama } 81446d4c572STomoki Sekiyama 81546d4c572STomoki Sekiyama static int compare_uint(const void *_a, const void *_b) 81646d4c572STomoki Sekiyama { 81746d4c572STomoki Sekiyama unsigned int a = *(unsigned int *)_a; 81846d4c572STomoki Sekiyama unsigned int b = *(unsigned int *)_b; 81946d4c572STomoki Sekiyama 82046d4c572STomoki Sekiyama return a < b ? -1 : a > b ? 1 : 0; 82146d4c572STomoki Sekiyama } 82246d4c572STomoki Sekiyama 82346d4c572STomoki Sekiyama /* Walk the specified sysfs and build a sorted list of host or ata numbers */ 82446d4c572STomoki Sekiyama static int build_hosts(char const *syspath, char const *host, bool ata, 82546d4c572STomoki Sekiyama unsigned int *hosts, int hosts_max, Error **errp) 82646d4c572STomoki Sekiyama { 82746d4c572STomoki Sekiyama char *path; 82846d4c572STomoki Sekiyama DIR *dir; 82946d4c572STomoki Sekiyama struct dirent *entry; 83046d4c572STomoki Sekiyama int i = 0; 83146d4c572STomoki Sekiyama 83246d4c572STomoki Sekiyama path = g_strndup(syspath, host - syspath); 83346d4c572STomoki Sekiyama dir = opendir(path); 83446d4c572STomoki Sekiyama if (!dir) { 83546d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", path); 83646d4c572STomoki Sekiyama g_free(path); 83746d4c572STomoki Sekiyama return -1; 83846d4c572STomoki Sekiyama } 83946d4c572STomoki Sekiyama 84046d4c572STomoki Sekiyama while (i < hosts_max) { 84146d4c572STomoki Sekiyama entry = readdir(dir); 84246d4c572STomoki Sekiyama if (!entry) { 84346d4c572STomoki Sekiyama break; 84446d4c572STomoki Sekiyama } 84546d4c572STomoki Sekiyama if (ata && sscanf(entry->d_name, "ata%d", hosts + i) == 1) { 84646d4c572STomoki Sekiyama ++i; 84746d4c572STomoki Sekiyama } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) == 1) { 84846d4c572STomoki Sekiyama ++i; 84946d4c572STomoki Sekiyama } 85046d4c572STomoki Sekiyama } 85146d4c572STomoki Sekiyama 85246d4c572STomoki Sekiyama qsort(hosts, i, sizeof(hosts[0]), compare_uint); 85346d4c572STomoki Sekiyama 85446d4c572STomoki Sekiyama g_free(path); 85546d4c572STomoki Sekiyama closedir(dir); 85646d4c572STomoki Sekiyama return i; 85746d4c572STomoki Sekiyama } 85846d4c572STomoki Sekiyama 859d9fe4f0fSThomas Huth /* 860d9fe4f0fSThomas Huth * Store disk device info for devices on the PCI bus. 861d9fe4f0fSThomas Huth * Returns true if information has been stored, or false for failure. 862d9fe4f0fSThomas Huth */ 863d9fe4f0fSThomas Huth static bool build_guest_fsinfo_for_pci_dev(char const *syspath, 864d9fe4f0fSThomas Huth GuestDiskAddress *disk, 86546d4c572STomoki Sekiyama Error **errp) 86646d4c572STomoki Sekiyama { 86746d4c572STomoki Sekiyama unsigned int pci[4], host, hosts[8], tgt[3]; 86846d4c572STomoki Sekiyama int i, nhosts = 0, pcilen; 869d9fe4f0fSThomas Huth GuestPCIAddress *pciaddr = disk->pci_controller; 87046d4c572STomoki Sekiyama bool has_ata = false, has_host = false, has_tgt = false; 87146d4c572STomoki Sekiyama char *p, *q, *driver = NULL; 872d9fe4f0fSThomas Huth bool ret = false; 87346d4c572STomoki Sekiyama 87446d4c572STomoki Sekiyama p = strstr(syspath, "/devices/pci"); 87546d4c572STomoki Sekiyama if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", 87646d4c572STomoki Sekiyama pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { 877743c71d0SMarc-André Lureau g_debug("only pci device is supported: sysfs path '%s'", syspath); 878d9fe4f0fSThomas Huth return false; 87946d4c572STomoki Sekiyama } 88046d4c572STomoki Sekiyama 881743c71d0SMarc-André Lureau p += 12 + pcilen; 882743c71d0SMarc-André Lureau while (true) { 883743c71d0SMarc-André Lureau driver = get_pci_driver(syspath, p - syspath, errp); 884743c71d0SMarc-André Lureau if (driver && (g_str_equal(driver, "ata_piix") || 885743c71d0SMarc-André Lureau g_str_equal(driver, "sym53c8xx") || 886743c71d0SMarc-André Lureau g_str_equal(driver, "virtio-pci") || 887d48f61c8Szhenwei pi g_str_equal(driver, "ahci") || 888d48f61c8Szhenwei pi g_str_equal(driver, "nvme"))) { 889743c71d0SMarc-André Lureau break; 890743c71d0SMarc-André Lureau } 891743c71d0SMarc-André Lureau 892bb23a736SMarc-André Lureau g_free(driver); 893743c71d0SMarc-André Lureau if (sscanf(p, "/%x:%x:%x.%x%n", 894743c71d0SMarc-André Lureau pci, pci + 1, pci + 2, pci + 3, &pcilen) == 4) { 895743c71d0SMarc-André Lureau p += pcilen; 896743c71d0SMarc-André Lureau continue; 897743c71d0SMarc-André Lureau } 898743c71d0SMarc-André Lureau 899743c71d0SMarc-André Lureau g_debug("unsupported driver or sysfs path '%s'", syspath); 900d9fe4f0fSThomas Huth return false; 90146d4c572STomoki Sekiyama } 90246d4c572STomoki Sekiyama 90346d4c572STomoki Sekiyama p = strstr(syspath, "/target"); 90446d4c572STomoki Sekiyama if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 90546d4c572STomoki Sekiyama tgt, tgt + 1, tgt + 2) == 3) { 90646d4c572STomoki Sekiyama has_tgt = true; 90746d4c572STomoki Sekiyama } 90846d4c572STomoki Sekiyama 90946d4c572STomoki Sekiyama p = strstr(syspath, "/ata"); 91046d4c572STomoki Sekiyama if (p) { 91146d4c572STomoki Sekiyama q = p + 4; 91246d4c572STomoki Sekiyama has_ata = true; 91346d4c572STomoki Sekiyama } else { 91446d4c572STomoki Sekiyama p = strstr(syspath, "/host"); 91546d4c572STomoki Sekiyama q = p + 5; 91646d4c572STomoki Sekiyama } 91746d4c572STomoki Sekiyama if (p && sscanf(q, "%u", &host) == 1) { 91846d4c572STomoki Sekiyama has_host = true; 91946d4c572STomoki Sekiyama nhosts = build_hosts(syspath, p, has_ata, hosts, 92001a6df1bSPhilippe Mathieu-Daudé ARRAY_SIZE(hosts), errp); 92146d4c572STomoki Sekiyama if (nhosts < 0) { 92246d4c572STomoki Sekiyama goto cleanup; 92346d4c572STomoki Sekiyama } 92446d4c572STomoki Sekiyama } 92546d4c572STomoki Sekiyama 92646d4c572STomoki Sekiyama pciaddr->domain = pci[0]; 92746d4c572STomoki Sekiyama pciaddr->bus = pci[1]; 92846d4c572STomoki Sekiyama pciaddr->slot = pci[2]; 92946d4c572STomoki Sekiyama pciaddr->function = pci[3]; 93046d4c572STomoki Sekiyama 93146d4c572STomoki Sekiyama if (strcmp(driver, "ata_piix") == 0) { 93246d4c572STomoki Sekiyama /* a host per ide bus, target*:0:<unit>:0 */ 93346d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 93446d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 93546d4c572STomoki Sekiyama goto cleanup; 93646d4c572STomoki Sekiyama } 93746d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 93846d4c572STomoki Sekiyama if (host == hosts[i]) { 93946d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_IDE; 94046d4c572STomoki Sekiyama disk->bus = i; 94146d4c572STomoki Sekiyama disk->unit = tgt[1]; 94246d4c572STomoki Sekiyama break; 94346d4c572STomoki Sekiyama } 94446d4c572STomoki Sekiyama } 94546d4c572STomoki Sekiyama if (i >= nhosts) { 94646d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 94746d4c572STomoki Sekiyama goto cleanup; 94846d4c572STomoki Sekiyama } 94946d4c572STomoki Sekiyama } else if (strcmp(driver, "sym53c8xx") == 0) { 95046d4c572STomoki Sekiyama /* scsi(LSI Logic): target*:0:<unit>:0 */ 95146d4c572STomoki Sekiyama if (!has_tgt) { 95246d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 95346d4c572STomoki Sekiyama goto cleanup; 95446d4c572STomoki Sekiyama } 95546d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 95646d4c572STomoki Sekiyama disk->unit = tgt[1]; 95746d4c572STomoki Sekiyama } else if (strcmp(driver, "virtio-pci") == 0) { 95846d4c572STomoki Sekiyama if (has_tgt) { 95946d4c572STomoki Sekiyama /* virtio-scsi: target*:0:0:<unit> */ 96046d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 96146d4c572STomoki Sekiyama disk->unit = tgt[2]; 96246d4c572STomoki Sekiyama } else { 96346d4c572STomoki Sekiyama /* virtio-blk: 1 disk per 1 device */ 96446d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 96546d4c572STomoki Sekiyama } 96646d4c572STomoki Sekiyama } else if (strcmp(driver, "ahci") == 0) { 96746d4c572STomoki Sekiyama /* ahci: 1 host per 1 unit */ 96846d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 96946d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 97046d4c572STomoki Sekiyama goto cleanup; 97146d4c572STomoki Sekiyama } 97246d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 97346d4c572STomoki Sekiyama if (host == hosts[i]) { 97446d4c572STomoki Sekiyama disk->unit = i; 97546d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SATA; 97646d4c572STomoki Sekiyama break; 97746d4c572STomoki Sekiyama } 97846d4c572STomoki Sekiyama } 97946d4c572STomoki Sekiyama if (i >= nhosts) { 98046d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 98146d4c572STomoki Sekiyama goto cleanup; 98246d4c572STomoki Sekiyama } 983d48f61c8Szhenwei pi } else if (strcmp(driver, "nvme") == 0) { 984d48f61c8Szhenwei pi disk->bus_type = GUEST_DISK_BUS_TYPE_NVME; 98546d4c572STomoki Sekiyama } else { 98646d4c572STomoki Sekiyama g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); 98746d4c572STomoki Sekiyama goto cleanup; 98846d4c572STomoki Sekiyama } 98946d4c572STomoki Sekiyama 990d9fe4f0fSThomas Huth ret = true; 99146d4c572STomoki Sekiyama 99246d4c572STomoki Sekiyama cleanup: 99346d4c572STomoki Sekiyama g_free(driver); 994d9fe4f0fSThomas Huth return ret; 995d9fe4f0fSThomas Huth } 996d9fe4f0fSThomas Huth 99723843c12SThomas Huth /* 99823843c12SThomas Huth * Store disk device info for non-PCI virtio devices (for example s390x 99923843c12SThomas Huth * channel I/O devices). Returns true if information has been stored, or 100023843c12SThomas Huth * false for failure. 100123843c12SThomas Huth */ 100223843c12SThomas Huth static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath, 100323843c12SThomas Huth GuestDiskAddress *disk, 100423843c12SThomas Huth Error **errp) 100523843c12SThomas Huth { 100623843c12SThomas Huth unsigned int tgt[3]; 100723843c12SThomas Huth char *p; 100823843c12SThomas Huth 100923843c12SThomas Huth if (!strstr(syspath, "/virtio") || !strstr(syspath, "/block")) { 101023843c12SThomas Huth g_debug("Unsupported virtio device '%s'", syspath); 101123843c12SThomas Huth return false; 101223843c12SThomas Huth } 101323843c12SThomas Huth 101423843c12SThomas Huth p = strstr(syspath, "/target"); 101523843c12SThomas Huth if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 101623843c12SThomas Huth &tgt[0], &tgt[1], &tgt[2]) == 3) { 101723843c12SThomas Huth /* virtio-scsi: target*:0:<target>:<unit> */ 101823843c12SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 101923843c12SThomas Huth disk->bus = tgt[0]; 102023843c12SThomas Huth disk->target = tgt[1]; 102123843c12SThomas Huth disk->unit = tgt[2]; 102223843c12SThomas Huth } else { 102323843c12SThomas Huth /* virtio-blk: 1 disk per 1 device */ 102423843c12SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 102523843c12SThomas Huth } 102623843c12SThomas Huth 102723843c12SThomas Huth return true; 102823843c12SThomas Huth } 102923843c12SThomas Huth 10305b723a5dSThomas Huth /* 10315b723a5dSThomas Huth * Store disk device info for CCW devices (s390x channel I/O devices). 10325b723a5dSThomas Huth * Returns true if information has been stored, or false for failure. 10335b723a5dSThomas Huth */ 10345b723a5dSThomas Huth static bool build_guest_fsinfo_for_ccw_dev(char const *syspath, 10355b723a5dSThomas Huth GuestDiskAddress *disk, 10365b723a5dSThomas Huth Error **errp) 10375b723a5dSThomas Huth { 10385b723a5dSThomas Huth unsigned int cssid, ssid, subchno, devno; 10395b723a5dSThomas Huth char *p; 10405b723a5dSThomas Huth 10415b723a5dSThomas Huth p = strstr(syspath, "/devices/css"); 10425b723a5dSThomas Huth if (!p || sscanf(p + 12, "%*x/%x.%x.%x/%*x.%*x.%x/", 10435b723a5dSThomas Huth &cssid, &ssid, &subchno, &devno) < 4) { 10445b723a5dSThomas Huth g_debug("could not parse ccw device sysfs path: %s", syspath); 10455b723a5dSThomas Huth return false; 10465b723a5dSThomas Huth } 10475b723a5dSThomas Huth 10485b723a5dSThomas Huth disk->has_ccw_address = true; 10495b723a5dSThomas Huth disk->ccw_address = g_new0(GuestCCWAddress, 1); 10505b723a5dSThomas Huth disk->ccw_address->cssid = cssid; 10515b723a5dSThomas Huth disk->ccw_address->ssid = ssid; 10525b723a5dSThomas Huth disk->ccw_address->subchno = subchno; 10535b723a5dSThomas Huth disk->ccw_address->devno = devno; 10545b723a5dSThomas Huth 10555b723a5dSThomas Huth if (strstr(p, "/virtio")) { 10565b723a5dSThomas Huth build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); 10575b723a5dSThomas Huth } 10585b723a5dSThomas Huth 10595b723a5dSThomas Huth return true; 10605b723a5dSThomas Huth } 10615b723a5dSThomas Huth 1062d9fe4f0fSThomas Huth /* Store disk device info specified by @sysfs into @fs */ 1063d9fe4f0fSThomas Huth static void build_guest_fsinfo_for_real_device(char const *syspath, 1064d9fe4f0fSThomas Huth GuestFilesystemInfo *fs, 1065d9fe4f0fSThomas Huth Error **errp) 1066d9fe4f0fSThomas Huth { 1067d9fe4f0fSThomas Huth GuestDiskAddress *disk; 1068d9fe4f0fSThomas Huth GuestPCIAddress *pciaddr; 1069d9fe4f0fSThomas Huth bool has_hwinf; 107043dadc43SThomas Huth #ifdef CONFIG_LIBUDEV 107143dadc43SThomas Huth struct udev *udev = NULL; 107243dadc43SThomas Huth struct udev_device *udevice = NULL; 107343dadc43SThomas Huth #endif 1074d9fe4f0fSThomas Huth 1075d9fe4f0fSThomas Huth pciaddr = g_new0(GuestPCIAddress, 1); 107643dadc43SThomas Huth pciaddr->domain = -1; /* -1 means field is invalid */ 107743dadc43SThomas Huth pciaddr->bus = -1; 107843dadc43SThomas Huth pciaddr->slot = -1; 107943dadc43SThomas Huth pciaddr->function = -1; 1080d9fe4f0fSThomas Huth 1081d9fe4f0fSThomas Huth disk = g_new0(GuestDiskAddress, 1); 1082d9fe4f0fSThomas Huth disk->pci_controller = pciaddr; 108343dadc43SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_UNKNOWN; 1084d9fe4f0fSThomas Huth 108543dadc43SThomas Huth #ifdef CONFIG_LIBUDEV 108643dadc43SThomas Huth udev = udev_new(); 108743dadc43SThomas Huth udevice = udev_device_new_from_syspath(udev, syspath); 108843dadc43SThomas Huth if (udev == NULL || udevice == NULL) { 108943dadc43SThomas Huth g_debug("failed to query udev"); 109043dadc43SThomas Huth } else { 109143dadc43SThomas Huth const char *devnode, *serial; 109243dadc43SThomas Huth devnode = udev_device_get_devnode(udevice); 109343dadc43SThomas Huth if (devnode != NULL) { 109443dadc43SThomas Huth disk->dev = g_strdup(devnode); 109543dadc43SThomas Huth disk->has_dev = true; 109643dadc43SThomas Huth } 109743dadc43SThomas Huth serial = udev_device_get_property_value(udevice, "ID_SERIAL"); 109843dadc43SThomas Huth if (serial != NULL && *serial != 0) { 109943dadc43SThomas Huth disk->serial = g_strdup(serial); 110043dadc43SThomas Huth disk->has_serial = true; 110143dadc43SThomas Huth } 110243dadc43SThomas Huth } 110343dadc43SThomas Huth 110443dadc43SThomas Huth udev_unref(udev); 110543dadc43SThomas Huth udev_device_unref(udevice); 110643dadc43SThomas Huth #endif 110743dadc43SThomas Huth 110823843c12SThomas Huth if (strstr(syspath, "/devices/pci")) { 1109d9fe4f0fSThomas Huth has_hwinf = build_guest_fsinfo_for_pci_dev(syspath, disk, errp); 11105b723a5dSThomas Huth } else if (strstr(syspath, "/devices/css")) { 11115b723a5dSThomas Huth has_hwinf = build_guest_fsinfo_for_ccw_dev(syspath, disk, errp); 111223843c12SThomas Huth } else if (strstr(syspath, "/virtio")) { 111323843c12SThomas Huth has_hwinf = build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); 111423843c12SThomas Huth } else { 111523843c12SThomas Huth g_debug("Unsupported device type for '%s'", syspath); 111623843c12SThomas Huth has_hwinf = false; 111723843c12SThomas Huth } 1118d9fe4f0fSThomas Huth 111943dadc43SThomas Huth if (has_hwinf || disk->has_dev || disk->has_serial) { 112054aa3de7SEric Blake QAPI_LIST_PREPEND(fs->disk, disk); 1121d9fe4f0fSThomas Huth } else { 112254aa3de7SEric Blake qapi_free_GuestDiskAddress(disk); 1123d9fe4f0fSThomas Huth } 112446d4c572STomoki Sekiyama } 112546d4c572STomoki Sekiyama 112646d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 112746d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 112846d4c572STomoki Sekiyama Error **errp); 112946d4c572STomoki Sekiyama 113046d4c572STomoki Sekiyama /* Store a list of slave devices of virtual volume specified by @syspath into 113146d4c572STomoki Sekiyama * @fs */ 113246d4c572STomoki Sekiyama static void build_guest_fsinfo_for_virtual_device(char const *syspath, 113346d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 113446d4c572STomoki Sekiyama Error **errp) 113546d4c572STomoki Sekiyama { 1136292743d9SMarkus Armbruster Error *err = NULL; 113746d4c572STomoki Sekiyama DIR *dir; 113846d4c572STomoki Sekiyama char *dirpath; 1139e668d1b8Szhanghailiang struct dirent *entry; 114046d4c572STomoki Sekiyama 114146d4c572STomoki Sekiyama dirpath = g_strdup_printf("%s/slaves", syspath); 114246d4c572STomoki Sekiyama dir = opendir(dirpath); 114346d4c572STomoki Sekiyama if (!dir) { 11448251a72fSMichael Roth if (errno != ENOENT) { 114546d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); 11468251a72fSMichael Roth } 114746d4c572STomoki Sekiyama g_free(dirpath); 114846d4c572STomoki Sekiyama return; 114946d4c572STomoki Sekiyama } 115046d4c572STomoki Sekiyama 115146d4c572STomoki Sekiyama for (;;) { 1152e668d1b8Szhanghailiang errno = 0; 1153e668d1b8Szhanghailiang entry = readdir(dir); 1154e668d1b8Szhanghailiang if (entry == NULL) { 1155e668d1b8Szhanghailiang if (errno) { 1156e668d1b8Szhanghailiang error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); 115746d4c572STomoki Sekiyama } 115846d4c572STomoki Sekiyama break; 115946d4c572STomoki Sekiyama } 116046d4c572STomoki Sekiyama 1161e668d1b8Szhanghailiang if (entry->d_type == DT_LNK) { 1162e668d1b8Szhanghailiang char *path; 1163e668d1b8Szhanghailiang 1164e668d1b8Szhanghailiang g_debug(" slave device '%s'", entry->d_name); 1165e668d1b8Szhanghailiang path = g_strdup_printf("%s/slaves/%s", syspath, entry->d_name); 1166292743d9SMarkus Armbruster build_guest_fsinfo_for_device(path, fs, &err); 1167e668d1b8Szhanghailiang g_free(path); 116846d4c572STomoki Sekiyama 1169292743d9SMarkus Armbruster if (err) { 1170292743d9SMarkus Armbruster error_propagate(errp, err); 117146d4c572STomoki Sekiyama break; 117246d4c572STomoki Sekiyama } 117346d4c572STomoki Sekiyama } 117446d4c572STomoki Sekiyama } 117546d4c572STomoki Sekiyama 1176e668d1b8Szhanghailiang g_free(dirpath); 117746d4c572STomoki Sekiyama closedir(dir); 117846d4c572STomoki Sekiyama } 117946d4c572STomoki Sekiyama 1180fed39564STomáš Golembiovský static bool is_disk_virtual(const char *devpath, Error **errp) 1181fed39564STomáš Golembiovský { 1182fed39564STomáš Golembiovský g_autofree char *syspath = realpath(devpath, NULL); 1183fed39564STomáš Golembiovský 1184fed39564STomáš Golembiovský if (!syspath) { 1185fed39564STomáš Golembiovský error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 1186fed39564STomáš Golembiovský return false; 1187fed39564STomáš Golembiovský } 1188fed39564STomáš Golembiovský return strstr(syspath, "/devices/virtual/block/") != NULL; 1189fed39564STomáš Golembiovský } 1190fed39564STomáš Golembiovský 119146d4c572STomoki Sekiyama /* Dispatch to functions for virtual/real device */ 119246d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 119346d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 119446d4c572STomoki Sekiyama Error **errp) 119546d4c572STomoki Sekiyama { 1196fed39564STomáš Golembiovský ERRP_GUARD(); 1197fed39564STomáš Golembiovský g_autofree char *syspath = NULL; 1198fed39564STomáš Golembiovský bool is_virtual = false; 119946d4c572STomoki Sekiyama 1200fed39564STomáš Golembiovský syspath = realpath(devpath, NULL); 120146d4c572STomoki Sekiyama if (!syspath) { 1202bbb0151cSJohn Snow if (errno != ENOENT) { 120346d4c572STomoki Sekiyama error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 120446d4c572STomoki Sekiyama return; 120546d4c572STomoki Sekiyama } 120646d4c572STomoki Sekiyama 1207bbb0151cSJohn Snow /* ENOENT: This devpath may not exist because of container config */ 1208bbb0151cSJohn Snow if (!fs->name) { 1209bbb0151cSJohn Snow fs->name = g_path_get_basename(devpath); 1210bbb0151cSJohn Snow } 1211bbb0151cSJohn Snow return; 1212bbb0151cSJohn Snow } 1213bbb0151cSJohn Snow 121446d4c572STomoki Sekiyama if (!fs->name) { 12153e015d81SJulia Suvorova fs->name = g_path_get_basename(syspath); 121646d4c572STomoki Sekiyama } 121746d4c572STomoki Sekiyama 121846d4c572STomoki Sekiyama g_debug(" parse sysfs path '%s'", syspath); 1219fed39564STomáš Golembiovský is_virtual = is_disk_virtual(syspath, errp); 1220fed39564STomáš Golembiovský if (*errp != NULL) { 1221fed39564STomáš Golembiovský return; 1222fed39564STomáš Golembiovský } 1223fed39564STomáš Golembiovský if (is_virtual) { 122446d4c572STomoki Sekiyama build_guest_fsinfo_for_virtual_device(syspath, fs, errp); 122546d4c572STomoki Sekiyama } else { 122646d4c572STomoki Sekiyama build_guest_fsinfo_for_real_device(syspath, fs, errp); 122746d4c572STomoki Sekiyama } 122846d4c572STomoki Sekiyama } 122946d4c572STomoki Sekiyama 1230fed39564STomáš Golembiovský #ifdef CONFIG_LIBUDEV 1231fed39564STomáš Golembiovský 1232fed39564STomáš Golembiovský /* 1233fed39564STomáš Golembiovský * Wrapper around build_guest_fsinfo_for_device() for getting just 1234fed39564STomáš Golembiovský * the disk address. 1235fed39564STomáš Golembiovský */ 1236fed39564STomáš Golembiovský static GuestDiskAddress *get_disk_address(const char *syspath, Error **errp) 1237fed39564STomáš Golembiovský { 1238fed39564STomáš Golembiovský g_autoptr(GuestFilesystemInfo) fs = NULL; 1239fed39564STomáš Golembiovský 1240fed39564STomáš Golembiovský fs = g_new0(GuestFilesystemInfo, 1); 1241fed39564STomáš Golembiovský build_guest_fsinfo_for_device(syspath, fs, errp); 1242fed39564STomáš Golembiovský if (fs->disk != NULL) { 1243fed39564STomáš Golembiovský return g_steal_pointer(&fs->disk->value); 1244fed39564STomáš Golembiovský } 1245fed39564STomáš Golembiovský return NULL; 1246fed39564STomáš Golembiovský } 1247fed39564STomáš Golembiovský 1248fed39564STomáš Golembiovský static char *get_alias_for_syspath(const char *syspath) 1249fed39564STomáš Golembiovský { 1250fed39564STomáš Golembiovský struct udev *udev = NULL; 1251fed39564STomáš Golembiovský struct udev_device *udevice = NULL; 1252fed39564STomáš Golembiovský char *ret = NULL; 1253fed39564STomáš Golembiovský 1254fed39564STomáš Golembiovský udev = udev_new(); 1255fed39564STomáš Golembiovský if (udev == NULL) { 1256fed39564STomáš Golembiovský g_debug("failed to query udev"); 1257fed39564STomáš Golembiovský goto out; 1258fed39564STomáš Golembiovský } 1259fed39564STomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 1260fed39564STomáš Golembiovský if (udevice == NULL) { 1261fed39564STomáš Golembiovský g_debug("failed to query udev for path: %s", syspath); 1262fed39564STomáš Golembiovský goto out; 1263fed39564STomáš Golembiovský } else { 1264fed39564STomáš Golembiovský const char *alias = udev_device_get_property_value( 1265fed39564STomáš Golembiovský udevice, "DM_NAME"); 1266fed39564STomáš Golembiovský /* 1267fed39564STomáš Golembiovský * NULL means there was an error and empty string means there is no 1268fed39564STomáš Golembiovský * alias. In case of no alias we return NULL instead of empty string. 1269fed39564STomáš Golembiovský */ 1270fed39564STomáš Golembiovský if (alias == NULL) { 1271fed39564STomáš Golembiovský g_debug("failed to query udev for device alias for: %s", 1272fed39564STomáš Golembiovský syspath); 1273fed39564STomáš Golembiovský } else if (*alias != 0) { 1274fed39564STomáš Golembiovský ret = g_strdup(alias); 1275fed39564STomáš Golembiovský } 1276fed39564STomáš Golembiovský } 1277fed39564STomáš Golembiovský 1278fed39564STomáš Golembiovský out: 1279fed39564STomáš Golembiovský udev_unref(udev); 1280fed39564STomáš Golembiovský udev_device_unref(udevice); 1281fed39564STomáš Golembiovský return ret; 1282fed39564STomáš Golembiovský } 1283fed39564STomáš Golembiovský 1284fed39564STomáš Golembiovský static char *get_device_for_syspath(const char *syspath) 1285fed39564STomáš Golembiovský { 1286fed39564STomáš Golembiovský struct udev *udev = NULL; 1287fed39564STomáš Golembiovský struct udev_device *udevice = NULL; 1288fed39564STomáš Golembiovský char *ret = NULL; 1289fed39564STomáš Golembiovský 1290fed39564STomáš Golembiovský udev = udev_new(); 1291fed39564STomáš Golembiovský if (udev == NULL) { 1292fed39564STomáš Golembiovský g_debug("failed to query udev"); 1293fed39564STomáš Golembiovský goto out; 1294fed39564STomáš Golembiovský } 1295fed39564STomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 1296fed39564STomáš Golembiovský if (udevice == NULL) { 1297fed39564STomáš Golembiovský g_debug("failed to query udev for path: %s", syspath); 1298fed39564STomáš Golembiovský goto out; 1299fed39564STomáš Golembiovský } else { 1300fed39564STomáš Golembiovský ret = g_strdup(udev_device_get_devnode(udevice)); 1301fed39564STomáš Golembiovský } 1302fed39564STomáš Golembiovský 1303fed39564STomáš Golembiovský out: 1304fed39564STomáš Golembiovský udev_unref(udev); 1305fed39564STomáš Golembiovský udev_device_unref(udevice); 1306fed39564STomáš Golembiovský return ret; 1307fed39564STomáš Golembiovský } 1308fed39564STomáš Golembiovský 1309fed39564STomáš Golembiovský static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) 1310fed39564STomáš Golembiovský { 1311fed39564STomáš Golembiovský g_autofree char *deps_dir = NULL; 1312fed39564STomáš Golembiovský const gchar *dep; 1313fed39564STomáš Golembiovský GDir *dp_deps = NULL; 1314fed39564STomáš Golembiovský 1315fed39564STomáš Golembiovský /* List dependent disks */ 1316fed39564STomáš Golembiovský deps_dir = g_strdup_printf("%s/slaves", disk_dir); 1317fed39564STomáš Golembiovský g_debug(" listing entries in: %s", deps_dir); 1318fed39564STomáš Golembiovský dp_deps = g_dir_open(deps_dir, 0, NULL); 1319fed39564STomáš Golembiovský if (dp_deps == NULL) { 1320fed39564STomáš Golembiovský g_debug("failed to list entries in %s", deps_dir); 1321fed39564STomáš Golembiovský return; 1322fed39564STomáš Golembiovský } 1323a8aa94b5SMichael Roth disk->has_dependencies = true; 1324fed39564STomáš Golembiovský while ((dep = g_dir_read_name(dp_deps)) != NULL) { 1325fed39564STomáš Golembiovský g_autofree char *dep_dir = NULL; 1326fed39564STomáš Golembiovský char *dev_name; 1327fed39564STomáš Golembiovský 1328fed39564STomáš Golembiovský /* Add dependent disks */ 1329fed39564STomáš Golembiovský dep_dir = g_strdup_printf("%s/%s", deps_dir, dep); 1330fed39564STomáš Golembiovský dev_name = get_device_for_syspath(dep_dir); 1331fed39564STomáš Golembiovský if (dev_name != NULL) { 1332fed39564STomáš Golembiovský g_debug(" adding dependent device: %s", dev_name); 133354aa3de7SEric Blake QAPI_LIST_PREPEND(disk->dependencies, dev_name); 1334fed39564STomáš Golembiovský } 1335fed39564STomáš Golembiovský } 1336fed39564STomáš Golembiovský g_dir_close(dp_deps); 1337fed39564STomáš Golembiovský } 1338fed39564STomáš Golembiovský 1339fed39564STomáš Golembiovský /* 1340fed39564STomáš Golembiovský * Detect partitions subdirectory, name is "<disk_name><number>" or 1341fed39564STomáš Golembiovský * "<disk_name>p<number>" 1342fed39564STomáš Golembiovský * 1343fed39564STomáš Golembiovský * @disk_name -- last component of /sys path (e.g. sda) 1344fed39564STomáš Golembiovský * @disk_dir -- sys path of the disk (e.g. /sys/block/sda) 1345fed39564STomáš Golembiovský * @disk_dev -- device node of the disk (e.g. /dev/sda) 1346fed39564STomáš Golembiovský */ 1347fed39564STomáš Golembiovský static GuestDiskInfoList *get_disk_partitions( 1348fed39564STomáš Golembiovský GuestDiskInfoList *list, 1349fed39564STomáš Golembiovský const char *disk_name, const char *disk_dir, 1350fed39564STomáš Golembiovský const char *disk_dev) 1351fed39564STomáš Golembiovský { 135254aa3de7SEric Blake GuestDiskInfoList *ret = list; 1353fed39564STomáš Golembiovský struct dirent *de_disk; 1354fed39564STomáš Golembiovský DIR *dp_disk = NULL; 1355fed39564STomáš Golembiovský size_t len = strlen(disk_name); 1356fed39564STomáš Golembiovský 1357fed39564STomáš Golembiovský dp_disk = opendir(disk_dir); 1358fed39564STomáš Golembiovský while ((de_disk = readdir(dp_disk)) != NULL) { 1359fed39564STomáš Golembiovský g_autofree char *partition_dir = NULL; 1360fed39564STomáš Golembiovský char *dev_name; 1361fed39564STomáš Golembiovský GuestDiskInfo *partition; 1362fed39564STomáš Golembiovský 1363fed39564STomáš Golembiovský if (!(de_disk->d_type & DT_DIR)) { 1364fed39564STomáš Golembiovský continue; 1365fed39564STomáš Golembiovský } 1366fed39564STomáš Golembiovský 1367fed39564STomáš Golembiovský if (!(strncmp(disk_name, de_disk->d_name, len) == 0 && 1368fed39564STomáš Golembiovský ((*(de_disk->d_name + len) == 'p' && 1369fed39564STomáš Golembiovský isdigit(*(de_disk->d_name + len + 1))) || 1370fed39564STomáš Golembiovský isdigit(*(de_disk->d_name + len))))) { 1371fed39564STomáš Golembiovský continue; 1372fed39564STomáš Golembiovský } 1373fed39564STomáš Golembiovský 1374fed39564STomáš Golembiovský partition_dir = g_strdup_printf("%s/%s", 1375fed39564STomáš Golembiovský disk_dir, de_disk->d_name); 1376fed39564STomáš Golembiovský dev_name = get_device_for_syspath(partition_dir); 1377fed39564STomáš Golembiovský if (dev_name == NULL) { 1378fed39564STomáš Golembiovský g_debug("Failed to get device name for syspath: %s", 1379fed39564STomáš Golembiovský disk_dir); 1380fed39564STomáš Golembiovský continue; 1381fed39564STomáš Golembiovský } 1382fed39564STomáš Golembiovský partition = g_new0(GuestDiskInfo, 1); 1383fed39564STomáš Golembiovský partition->name = dev_name; 1384fed39564STomáš Golembiovský partition->partition = true; 1385bac9b87bSMarc-André Lureau partition->has_dependencies = true; 1386fed39564STomáš Golembiovský /* Add parent disk as dependent for easier tracking of hierarchy */ 138754aa3de7SEric Blake QAPI_LIST_PREPEND(partition->dependencies, g_strdup(disk_dev)); 1388fed39564STomáš Golembiovský 138954aa3de7SEric Blake QAPI_LIST_PREPEND(ret, partition); 1390fed39564STomáš Golembiovský } 1391fed39564STomáš Golembiovský closedir(dp_disk); 1392fed39564STomáš Golembiovský 1393fed39564STomáš Golembiovský return ret; 1394fed39564STomáš Golembiovský } 1395fed39564STomáš Golembiovský 139622668881Szhenwei pi static void get_nvme_smart(GuestDiskInfo *disk) 139722668881Szhenwei pi { 139822668881Szhenwei pi int fd; 139922668881Szhenwei pi GuestNVMeSmart *smart; 140022668881Szhenwei pi NvmeSmartLog log = {0}; 140122668881Szhenwei pi struct nvme_admin_cmd cmd = { 140222668881Szhenwei pi .opcode = NVME_ADM_CMD_GET_LOG_PAGE, 140322668881Szhenwei pi .nsid = NVME_NSID_BROADCAST, 140422668881Szhenwei pi .addr = (uintptr_t)&log, 140522668881Szhenwei pi .data_len = sizeof(log), 140622668881Szhenwei pi .cdw10 = NVME_LOG_SMART_INFO | (1 << 15) /* RAE bit */ 140722668881Szhenwei pi | (((sizeof(log) >> 2) - 1) << 16) 140822668881Szhenwei pi }; 140922668881Szhenwei pi 1410b9947c9cSMarc-André Lureau fd = qga_open_cloexec(disk->name, O_RDONLY, 0); 141122668881Szhenwei pi if (fd == -1) { 141222668881Szhenwei pi g_debug("Failed to open device: %s: %s", disk->name, g_strerror(errno)); 141322668881Szhenwei pi return; 141422668881Szhenwei pi } 141522668881Szhenwei pi 141622668881Szhenwei pi if (ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd)) { 141722668881Szhenwei pi g_debug("Failed to get smart: %s: %s", disk->name, g_strerror(errno)); 141822668881Szhenwei pi close(fd); 141922668881Szhenwei pi return; 142022668881Szhenwei pi } 142122668881Szhenwei pi 142222668881Szhenwei pi disk->has_smart = true; 142322668881Szhenwei pi disk->smart = g_new0(GuestDiskSmart, 1); 142422668881Szhenwei pi disk->smart->type = GUEST_DISK_BUS_TYPE_NVME; 142522668881Szhenwei pi 142622668881Szhenwei pi smart = &disk->smart->u.nvme; 142722668881Szhenwei pi smart->critical_warning = log.critical_warning; 142822668881Szhenwei pi smart->temperature = lduw_le_p(&log.temperature); /* unaligned field */ 142922668881Szhenwei pi smart->available_spare = log.available_spare; 143022668881Szhenwei pi smart->available_spare_threshold = log.available_spare_threshold; 143122668881Szhenwei pi smart->percentage_used = log.percentage_used; 143222668881Szhenwei pi smart->data_units_read_lo = le64_to_cpu(log.data_units_read[0]); 143322668881Szhenwei pi smart->data_units_read_hi = le64_to_cpu(log.data_units_read[1]); 143422668881Szhenwei pi smart->data_units_written_lo = le64_to_cpu(log.data_units_written[0]); 143522668881Szhenwei pi smart->data_units_written_hi = le64_to_cpu(log.data_units_written[1]); 143622668881Szhenwei pi smart->host_read_commands_lo = le64_to_cpu(log.host_read_commands[0]); 143722668881Szhenwei pi smart->host_read_commands_hi = le64_to_cpu(log.host_read_commands[1]); 143822668881Szhenwei pi smart->host_write_commands_lo = le64_to_cpu(log.host_write_commands[0]); 143922668881Szhenwei pi smart->host_write_commands_hi = le64_to_cpu(log.host_write_commands[1]); 144022668881Szhenwei pi smart->controller_busy_time_lo = le64_to_cpu(log.controller_busy_time[0]); 144122668881Szhenwei pi smart->controller_busy_time_hi = le64_to_cpu(log.controller_busy_time[1]); 144222668881Szhenwei pi smart->power_cycles_lo = le64_to_cpu(log.power_cycles[0]); 144322668881Szhenwei pi smart->power_cycles_hi = le64_to_cpu(log.power_cycles[1]); 144422668881Szhenwei pi smart->power_on_hours_lo = le64_to_cpu(log.power_on_hours[0]); 144522668881Szhenwei pi smart->power_on_hours_hi = le64_to_cpu(log.power_on_hours[1]); 144622668881Szhenwei pi smart->unsafe_shutdowns_lo = le64_to_cpu(log.unsafe_shutdowns[0]); 144722668881Szhenwei pi smart->unsafe_shutdowns_hi = le64_to_cpu(log.unsafe_shutdowns[1]); 144822668881Szhenwei pi smart->media_errors_lo = le64_to_cpu(log.media_errors[0]); 144922668881Szhenwei pi smart->media_errors_hi = le64_to_cpu(log.media_errors[1]); 145022668881Szhenwei pi smart->number_of_error_log_entries_lo = 145122668881Szhenwei pi le64_to_cpu(log.number_of_error_log_entries[0]); 145222668881Szhenwei pi smart->number_of_error_log_entries_hi = 145322668881Szhenwei pi le64_to_cpu(log.number_of_error_log_entries[1]); 145422668881Szhenwei pi 145522668881Szhenwei pi close(fd); 145622668881Szhenwei pi } 145722668881Szhenwei pi 145822668881Szhenwei pi static void get_disk_smart(GuestDiskInfo *disk) 145922668881Szhenwei pi { 146022668881Szhenwei pi if (disk->has_address 146122668881Szhenwei pi && (disk->address->bus_type == GUEST_DISK_BUS_TYPE_NVME)) { 146222668881Szhenwei pi get_nvme_smart(disk); 146322668881Szhenwei pi } 146422668881Szhenwei pi } 146522668881Szhenwei pi 1466fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1467fed39564STomáš Golembiovský { 146854aa3de7SEric Blake GuestDiskInfoList *ret = NULL; 1469fed39564STomáš Golembiovský GuestDiskInfo *disk; 1470fed39564STomáš Golembiovský DIR *dp = NULL; 1471fed39564STomáš Golembiovský struct dirent *de = NULL; 1472fed39564STomáš Golembiovský 1473fed39564STomáš Golembiovský g_debug("listing /sys/block directory"); 1474fed39564STomáš Golembiovský dp = opendir("/sys/block"); 1475fed39564STomáš Golembiovský if (dp == NULL) { 1476fed39564STomáš Golembiovský error_setg_errno(errp, errno, "Can't open directory \"/sys/block\""); 1477fed39564STomáš Golembiovský return NULL; 1478fed39564STomáš Golembiovský } 1479fed39564STomáš Golembiovský while ((de = readdir(dp)) != NULL) { 1480fed39564STomáš Golembiovský g_autofree char *disk_dir = NULL, *line = NULL, 1481fed39564STomáš Golembiovský *size_path = NULL; 1482fed39564STomáš Golembiovský char *dev_name; 1483fed39564STomáš Golembiovský Error *local_err = NULL; 1484fed39564STomáš Golembiovský if (de->d_type != DT_LNK) { 1485fed39564STomáš Golembiovský g_debug(" skipping entry: %s", de->d_name); 1486fed39564STomáš Golembiovský continue; 1487fed39564STomáš Golembiovský } 1488fed39564STomáš Golembiovský 1489fed39564STomáš Golembiovský /* Check size and skip zero-sized disks */ 1490fed39564STomáš Golembiovský g_debug(" checking disk size"); 1491fed39564STomáš Golembiovský size_path = g_strdup_printf("/sys/block/%s/size", de->d_name); 1492fed39564STomáš Golembiovský if (!g_file_get_contents(size_path, &line, NULL, NULL)) { 1493fed39564STomáš Golembiovský g_debug(" failed to read disk size"); 1494fed39564STomáš Golembiovský continue; 1495fed39564STomáš Golembiovský } 1496fed39564STomáš Golembiovský if (g_strcmp0(line, "0\n") == 0) { 1497fed39564STomáš Golembiovský g_debug(" skipping zero-sized disk"); 1498fed39564STomáš Golembiovský continue; 1499fed39564STomáš Golembiovský } 1500fed39564STomáš Golembiovský 1501fed39564STomáš Golembiovský g_debug(" adding %s", de->d_name); 1502fed39564STomáš Golembiovský disk_dir = g_strdup_printf("/sys/block/%s", de->d_name); 1503fed39564STomáš Golembiovský dev_name = get_device_for_syspath(disk_dir); 1504fed39564STomáš Golembiovský if (dev_name == NULL) { 1505fed39564STomáš Golembiovský g_debug("Failed to get device name for syspath: %s", 1506fed39564STomáš Golembiovský disk_dir); 1507fed39564STomáš Golembiovský continue; 1508fed39564STomáš Golembiovský } 1509fed39564STomáš Golembiovský disk = g_new0(GuestDiskInfo, 1); 1510fed39564STomáš Golembiovský disk->name = dev_name; 1511fed39564STomáš Golembiovský disk->partition = false; 1512fed39564STomáš Golembiovský disk->alias = get_alias_for_syspath(disk_dir); 1513fed39564STomáš Golembiovský disk->has_alias = (disk->alias != NULL); 151454aa3de7SEric Blake QAPI_LIST_PREPEND(ret, disk); 1515fed39564STomáš Golembiovský 1516fed39564STomáš Golembiovský /* Get address for non-virtual devices */ 1517fed39564STomáš Golembiovský bool is_virtual = is_disk_virtual(disk_dir, &local_err); 1518fed39564STomáš Golembiovský if (local_err != NULL) { 1519fed39564STomáš Golembiovský g_debug(" failed to check disk path, ignoring error: %s", 1520fed39564STomáš Golembiovský error_get_pretty(local_err)); 1521fed39564STomáš Golembiovský error_free(local_err); 1522fed39564STomáš Golembiovský local_err = NULL; 1523fed39564STomáš Golembiovský /* Don't try to get the address */ 1524fed39564STomáš Golembiovský is_virtual = true; 1525fed39564STomáš Golembiovský } 1526fed39564STomáš Golembiovský if (!is_virtual) { 1527fed39564STomáš Golembiovský disk->address = get_disk_address(disk_dir, &local_err); 1528fed39564STomáš Golembiovský if (local_err != NULL) { 1529fed39564STomáš Golembiovský g_debug(" failed to get device info, ignoring error: %s", 1530fed39564STomáš Golembiovský error_get_pretty(local_err)); 1531fed39564STomáš Golembiovský error_free(local_err); 1532fed39564STomáš Golembiovský local_err = NULL; 1533fed39564STomáš Golembiovský } else if (disk->address != NULL) { 1534fed39564STomáš Golembiovský disk->has_address = true; 1535fed39564STomáš Golembiovský } 1536fed39564STomáš Golembiovský } 1537fed39564STomáš Golembiovský 1538fed39564STomáš Golembiovský get_disk_deps(disk_dir, disk); 153922668881Szhenwei pi get_disk_smart(disk); 1540fed39564STomáš Golembiovský ret = get_disk_partitions(ret, de->d_name, disk_dir, dev_name); 1541fed39564STomáš Golembiovský } 1542b1b9ab1cSMichael Roth 1543b1b9ab1cSMichael Roth closedir(dp); 1544b1b9ab1cSMichael Roth 1545fed39564STomáš Golembiovský return ret; 1546fed39564STomáš Golembiovský } 1547fed39564STomáš Golembiovský 1548fed39564STomáš Golembiovský #else 1549fed39564STomáš Golembiovský 1550fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1551fed39564STomáš Golembiovský { 1552fed39564STomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 1553fed39564STomáš Golembiovský return NULL; 1554fed39564STomáš Golembiovský } 1555fed39564STomáš Golembiovský 1556fed39564STomáš Golembiovský #endif 1557fed39564STomáš Golembiovský 155846d4c572STomoki Sekiyama /* Return a list of the disk device(s)' info which @mount lies on */ 155946d4c572STomoki Sekiyama static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, 156046d4c572STomoki Sekiyama Error **errp) 156146d4c572STomoki Sekiyama { 156246d4c572STomoki Sekiyama GuestFilesystemInfo *fs = g_malloc0(sizeof(*fs)); 156325b5ff1aSChen Hanxiao struct statvfs buf; 156425b5ff1aSChen Hanxiao unsigned long used, nonroot_total, fr_size; 156546d4c572STomoki Sekiyama char *devpath = g_strdup_printf("/sys/dev/block/%u:%u", 156646d4c572STomoki Sekiyama mount->devmajor, mount->devminor); 156746d4c572STomoki Sekiyama 156846d4c572STomoki Sekiyama fs->mountpoint = g_strdup(mount->dirname); 156946d4c572STomoki Sekiyama fs->type = g_strdup(mount->devtype); 157046d4c572STomoki Sekiyama build_guest_fsinfo_for_device(devpath, fs, errp); 157146d4c572STomoki Sekiyama 157225b5ff1aSChen Hanxiao if (statvfs(fs->mountpoint, &buf) == 0) { 157325b5ff1aSChen Hanxiao fr_size = buf.f_frsize; 157425b5ff1aSChen Hanxiao used = buf.f_blocks - buf.f_bfree; 157525b5ff1aSChen Hanxiao nonroot_total = used + buf.f_bavail; 157625b5ff1aSChen Hanxiao fs->used_bytes = used * fr_size; 157725b5ff1aSChen Hanxiao fs->total_bytes = nonroot_total * fr_size; 157825b5ff1aSChen Hanxiao 157925b5ff1aSChen Hanxiao fs->has_total_bytes = true; 158025b5ff1aSChen Hanxiao fs->has_used_bytes = true; 158125b5ff1aSChen Hanxiao } 158225b5ff1aSChen Hanxiao 158346d4c572STomoki Sekiyama g_free(devpath); 158425b5ff1aSChen Hanxiao 158546d4c572STomoki Sekiyama return fs; 158646d4c572STomoki Sekiyama } 158746d4c572STomoki Sekiyama 158846d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 158946d4c572STomoki Sekiyama { 159046d4c572STomoki Sekiyama FsMountList mounts; 159146d4c572STomoki Sekiyama struct FsMount *mount; 159254aa3de7SEric Blake GuestFilesystemInfoList *ret = NULL; 159346d4c572STomoki Sekiyama Error *local_err = NULL; 159446d4c572STomoki Sekiyama 159546d4c572STomoki Sekiyama QTAILQ_INIT(&mounts); 1596561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, &local_err)) { 159746d4c572STomoki Sekiyama error_propagate(errp, local_err); 159846d4c572STomoki Sekiyama return NULL; 159946d4c572STomoki Sekiyama } 160046d4c572STomoki Sekiyama 160146d4c572STomoki Sekiyama QTAILQ_FOREACH(mount, &mounts, next) { 160246d4c572STomoki Sekiyama g_debug("Building guest fsinfo for '%s'", mount->dirname); 160346d4c572STomoki Sekiyama 160454aa3de7SEric Blake QAPI_LIST_PREPEND(ret, build_guest_fsinfo(mount, &local_err)); 160546d4c572STomoki Sekiyama if (local_err) { 160646d4c572STomoki Sekiyama error_propagate(errp, local_err); 160746d4c572STomoki Sekiyama qapi_free_GuestFilesystemInfoList(ret); 160846d4c572STomoki Sekiyama ret = NULL; 160946d4c572STomoki Sekiyama break; 161046d4c572STomoki Sekiyama } 161146d4c572STomoki Sekiyama } 161246d4c572STomoki Sekiyama 161346d4c572STomoki Sekiyama free_fs_mount_list(&mounts); 161446d4c572STomoki Sekiyama return ret; 161546d4c572STomoki Sekiyama } 1616e72c3f2eSMichael Roth #endif /* CONFIG_FSFREEZE */ 1617c216e5adSMichael Roth 1618eab5fd59SPaolo Bonzini #if defined(CONFIG_FSTRIM) 1619eab5fd59SPaolo Bonzini /* 1620eab5fd59SPaolo Bonzini * Walk list of mounted file systems in the guest, and trim them. 1621eab5fd59SPaolo Bonzini */ 1622e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 1623e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1624eab5fd59SPaolo Bonzini { 1625e82855d9SJustin Ossevoort GuestFilesystemTrimResponse *response; 1626e82855d9SJustin Ossevoort GuestFilesystemTrimResult *result; 1627eab5fd59SPaolo Bonzini int ret = 0; 1628eab5fd59SPaolo Bonzini FsMountList mounts; 1629eab5fd59SPaolo Bonzini struct FsMount *mount; 1630eab5fd59SPaolo Bonzini int fd; 163173a652a1SJustin Ossevoort struct fstrim_range r; 1632eab5fd59SPaolo Bonzini 1633eab5fd59SPaolo Bonzini slog("guest-fstrim called"); 1634eab5fd59SPaolo Bonzini 1635eab5fd59SPaolo Bonzini QTAILQ_INIT(&mounts); 1636561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, errp)) { 1637e82855d9SJustin Ossevoort return NULL; 1638eab5fd59SPaolo Bonzini } 1639eab5fd59SPaolo Bonzini 1640e82855d9SJustin Ossevoort response = g_malloc0(sizeof(*response)); 1641e82855d9SJustin Ossevoort 1642eab5fd59SPaolo Bonzini QTAILQ_FOREACH(mount, &mounts, next) { 1643e82855d9SJustin Ossevoort result = g_malloc0(sizeof(*result)); 1644e82855d9SJustin Ossevoort result->path = g_strdup(mount->dirname); 1645e82855d9SJustin Ossevoort 164654aa3de7SEric Blake QAPI_LIST_PREPEND(response->paths, result); 1647e82855d9SJustin Ossevoort 1648b9947c9cSMarc-André Lureau fd = qga_open_cloexec(mount->dirname, O_RDONLY, 0); 1649eab5fd59SPaolo Bonzini if (fd == -1) { 1650e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to open: %s", 1651e82855d9SJustin Ossevoort strerror(errno)); 1652e82855d9SJustin Ossevoort result->has_error = true; 1653e82855d9SJustin Ossevoort continue; 1654eab5fd59SPaolo Bonzini } 1655eab5fd59SPaolo Bonzini 1656e35916acSMichael Tokarev /* We try to cull filesystems we know won't work in advance, but other 1657e35916acSMichael Tokarev * filesystems may not implement fstrim for less obvious reasons. 1658e35916acSMichael Tokarev * These will report EOPNOTSUPP; while in some other cases ENOTTY 1659e35916acSMichael Tokarev * will be reported (e.g. CD-ROMs). 1660e82855d9SJustin Ossevoort * Any other error means an unexpected error. 1661eab5fd59SPaolo Bonzini */ 166273a652a1SJustin Ossevoort r.start = 0; 166373a652a1SJustin Ossevoort r.len = -1; 166473a652a1SJustin Ossevoort r.minlen = has_minimum ? minimum : 0; 1665eab5fd59SPaolo Bonzini ret = ioctl(fd, FITRIM, &r); 1666eab5fd59SPaolo Bonzini if (ret == -1) { 1667e82855d9SJustin Ossevoort result->has_error = true; 1668e82855d9SJustin Ossevoort if (errno == ENOTTY || errno == EOPNOTSUPP) { 1669e82855d9SJustin Ossevoort result->error = g_strdup("trim not supported"); 1670e82855d9SJustin Ossevoort } else { 1671e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to trim: %s", 1672e82855d9SJustin Ossevoort strerror(errno)); 1673e82855d9SJustin Ossevoort } 1674eab5fd59SPaolo Bonzini close(fd); 1675e82855d9SJustin Ossevoort continue; 1676eab5fd59SPaolo Bonzini } 1677e82855d9SJustin Ossevoort 1678e82855d9SJustin Ossevoort result->has_minimum = true; 1679e82855d9SJustin Ossevoort result->minimum = r.minlen; 1680e82855d9SJustin Ossevoort result->has_trimmed = true; 1681e82855d9SJustin Ossevoort result->trimmed = r.len; 1682eab5fd59SPaolo Bonzini close(fd); 1683eab5fd59SPaolo Bonzini } 1684eab5fd59SPaolo Bonzini 1685eab5fd59SPaolo Bonzini free_fs_mount_list(&mounts); 1686e82855d9SJustin Ossevoort return response; 1687eab5fd59SPaolo Bonzini } 1688eab5fd59SPaolo Bonzini #endif /* CONFIG_FSTRIM */ 1689eab5fd59SPaolo Bonzini 1690eab5fd59SPaolo Bonzini 169111d0f125SLuiz Capitulino #define LINUX_SYS_STATE_FILE "/sys/power/state" 169211d0f125SLuiz Capitulino #define SUSPEND_SUPPORTED 0 169311d0f125SLuiz Capitulino #define SUSPEND_NOT_SUPPORTED 1 169411d0f125SLuiz Capitulino 16958b020b5eSDaniel Henrique Barboza typedef enum { 16968b020b5eSDaniel Henrique Barboza SUSPEND_MODE_DISK = 0, 16978b020b5eSDaniel Henrique Barboza SUSPEND_MODE_RAM = 1, 16988b020b5eSDaniel Henrique Barboza SUSPEND_MODE_HYBRID = 2, 16998b020b5eSDaniel Henrique Barboza } SuspendMode; 17008b020b5eSDaniel Henrique Barboza 17018b020b5eSDaniel Henrique Barboza /* 17028b020b5eSDaniel Henrique Barboza * Executes a command in a child process using g_spawn_sync, 17038b020b5eSDaniel Henrique Barboza * returning an int >= 0 representing the exit status of the 17048b020b5eSDaniel Henrique Barboza * process. 17058b020b5eSDaniel Henrique Barboza * 17068b020b5eSDaniel Henrique Barboza * If the program wasn't found in path, returns -1. 17078b020b5eSDaniel Henrique Barboza * 17088b020b5eSDaniel Henrique Barboza * If a problem happened when creating the child process, 17098b020b5eSDaniel Henrique Barboza * returns -1 and errp is set. 17108b020b5eSDaniel Henrique Barboza */ 17118b020b5eSDaniel Henrique Barboza static int run_process_child(const char *command[], Error **errp) 17128b020b5eSDaniel Henrique Barboza { 17138b020b5eSDaniel Henrique Barboza int exit_status, spawn_flag; 17148b020b5eSDaniel Henrique Barboza GError *g_err = NULL; 17158b020b5eSDaniel Henrique Barboza bool success; 17168b020b5eSDaniel Henrique Barboza 17178b020b5eSDaniel Henrique Barboza spawn_flag = G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | 17188b020b5eSDaniel Henrique Barboza G_SPAWN_STDERR_TO_DEV_NULL; 17198b020b5eSDaniel Henrique Barboza 1720fcc41961SMarc-André Lureau success = g_spawn_sync(NULL, (char **)command, NULL, spawn_flag, 17218b020b5eSDaniel Henrique Barboza NULL, NULL, NULL, NULL, 17228b020b5eSDaniel Henrique Barboza &exit_status, &g_err); 17238b020b5eSDaniel Henrique Barboza 17248b020b5eSDaniel Henrique Barboza if (success) { 17258b020b5eSDaniel Henrique Barboza return WEXITSTATUS(exit_status); 17268b020b5eSDaniel Henrique Barboza } 17278b020b5eSDaniel Henrique Barboza 17288b020b5eSDaniel Henrique Barboza if (g_err && (g_err->code != G_SPAWN_ERROR_NOENT)) { 17298b020b5eSDaniel Henrique Barboza error_setg(errp, "failed to create child process, error '%s'", 17308b020b5eSDaniel Henrique Barboza g_err->message); 17318b020b5eSDaniel Henrique Barboza } 17328b020b5eSDaniel Henrique Barboza 17338b020b5eSDaniel Henrique Barboza g_error_free(g_err); 17348b020b5eSDaniel Henrique Barboza return -1; 17358b020b5eSDaniel Henrique Barboza } 17368b020b5eSDaniel Henrique Barboza 1737067927d6SDaniel Henrique Barboza static bool systemd_supports_mode(SuspendMode mode, Error **errp) 1738067927d6SDaniel Henrique Barboza { 1739067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"systemd-hibernate", "systemd-suspend", 1740067927d6SDaniel Henrique Barboza "systemd-hybrid-sleep"}; 1741067927d6SDaniel Henrique Barboza const char *cmd[4] = {"systemctl", "status", systemctl_args[mode], NULL}; 1742067927d6SDaniel Henrique Barboza int status; 1743067927d6SDaniel Henrique Barboza 1744992861fbSMarkus Armbruster status = run_process_child(cmd, errp); 1745067927d6SDaniel Henrique Barboza 1746067927d6SDaniel Henrique Barboza /* 1747067927d6SDaniel Henrique Barboza * systemctl status uses LSB return codes so we can expect 1748067927d6SDaniel Henrique Barboza * status > 0 and be ok. To assert if the guest has support 1749067927d6SDaniel Henrique Barboza * for the selected suspend mode, status should be < 4. 4 is 1750067927d6SDaniel Henrique Barboza * the code for unknown service status, the return value when 1751067927d6SDaniel Henrique Barboza * the service does not exist. A common value is status = 3 1752067927d6SDaniel Henrique Barboza * (program is not running). 1753067927d6SDaniel Henrique Barboza */ 1754067927d6SDaniel Henrique Barboza if (status > 0 && status < 4) { 1755067927d6SDaniel Henrique Barboza return true; 1756067927d6SDaniel Henrique Barboza } 1757067927d6SDaniel Henrique Barboza 1758067927d6SDaniel Henrique Barboza return false; 1759067927d6SDaniel Henrique Barboza } 1760067927d6SDaniel Henrique Barboza 1761067927d6SDaniel Henrique Barboza static void systemd_suspend(SuspendMode mode, Error **errp) 1762067927d6SDaniel Henrique Barboza { 1763067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1764067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"hibernate", "suspend", "hybrid-sleep"}; 1765067927d6SDaniel Henrique Barboza const char *cmd[3] = {"systemctl", systemctl_args[mode], NULL}; 1766067927d6SDaniel Henrique Barboza int status; 1767067927d6SDaniel Henrique Barboza 1768067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1769067927d6SDaniel Henrique Barboza 1770067927d6SDaniel Henrique Barboza if (status == 0) { 1771067927d6SDaniel Henrique Barboza return; 1772067927d6SDaniel Henrique Barboza } 1773067927d6SDaniel Henrique Barboza 1774067927d6SDaniel Henrique Barboza if ((status == -1) && !local_err) { 1775067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' was not found", 1776067927d6SDaniel Henrique Barboza systemctl_args[mode]); 1777067927d6SDaniel Henrique Barboza return; 1778067927d6SDaniel Henrique Barboza } 1779067927d6SDaniel Henrique Barboza 1780067927d6SDaniel Henrique Barboza if (local_err) { 1781067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1782067927d6SDaniel Henrique Barboza } else { 1783067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' returned an " 1784067927d6SDaniel Henrique Barboza "unexpected exit status code (%d)", 1785067927d6SDaniel Henrique Barboza systemctl_args[mode], status); 1786067927d6SDaniel Henrique Barboza } 1787067927d6SDaniel Henrique Barboza } 1788067927d6SDaniel Henrique Barboza 17898b020b5eSDaniel Henrique Barboza static bool pmutils_supports_mode(SuspendMode mode, Error **errp) 179011d0f125SLuiz Capitulino { 17916b26e837SLuiz Capitulino Error *local_err = NULL; 17928b020b5eSDaniel Henrique Barboza const char *pmutils_args[3] = {"--hibernate", "--suspend", 17938b020b5eSDaniel Henrique Barboza "--suspend-hybrid"}; 17948b020b5eSDaniel Henrique Barboza const char *cmd[3] = {"pm-is-supported", pmutils_args[mode], NULL}; 1795dc8764f0SLuiz Capitulino int status; 179611d0f125SLuiz Capitulino 17978b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1798304a0fcbSDaniel Henrique Barboza 17998b020b5eSDaniel Henrique Barboza if (status == SUSPEND_SUPPORTED) { 18008b020b5eSDaniel Henrique Barboza return true; 1801304a0fcbSDaniel Henrique Barboza } 1802304a0fcbSDaniel Henrique Barboza 18038b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 18048b020b5eSDaniel Henrique Barboza return false; 1805a5fcf0e3SDaniel Henrique Barboza } 180611d0f125SLuiz Capitulino 180784d18f06SMarkus Armbruster if (local_err) { 180877dbc81bSMarkus Armbruster error_propagate(errp, local_err); 18098b020b5eSDaniel Henrique Barboza } else { 181077dbc81bSMarkus Armbruster error_setg(errp, 18118b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 18128b020b5eSDaniel Henrique Barboza " status code (%d)", "pm-is-supported", status); 1813dc8764f0SLuiz Capitulino } 181411d0f125SLuiz Capitulino 18158b020b5eSDaniel Henrique Barboza return false; 1816a5fcf0e3SDaniel Henrique Barboza } 1817a5fcf0e3SDaniel Henrique Barboza 18188b020b5eSDaniel Henrique Barboza static void pmutils_suspend(SuspendMode mode, Error **errp) 1819246d76ebSDaniel Henrique Barboza { 1820246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 18218b020b5eSDaniel Henrique Barboza const char *pmutils_binaries[3] = {"pm-hibernate", "pm-suspend", 18228b020b5eSDaniel Henrique Barboza "pm-suspend-hybrid"}; 18238b020b5eSDaniel Henrique Barboza const char *cmd[2] = {pmutils_binaries[mode], NULL}; 1824246d76ebSDaniel Henrique Barboza int status; 1825246d76ebSDaniel Henrique Barboza 18268b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1827246d76ebSDaniel Henrique Barboza 18288b020b5eSDaniel Henrique Barboza if (status == 0) { 1829246d76ebSDaniel Henrique Barboza return; 1830246d76ebSDaniel Henrique Barboza } 1831246d76ebSDaniel Henrique Barboza 18328b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 18338b020b5eSDaniel Henrique Barboza error_setg(errp, "the helper program '%s' was not found", 18348b020b5eSDaniel Henrique Barboza pmutils_binaries[mode]); 1835246d76ebSDaniel Henrique Barboza return; 1836246d76ebSDaniel Henrique Barboza } 1837246d76ebSDaniel Henrique Barboza 1838246d76ebSDaniel Henrique Barboza if (local_err) { 1839246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 18408b020b5eSDaniel Henrique Barboza } else { 1841246d76ebSDaniel Henrique Barboza error_setg(errp, 18428b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 18438b020b5eSDaniel Henrique Barboza " status code (%d)", pmutils_binaries[mode], status); 18448b020b5eSDaniel Henrique Barboza } 1845246d76ebSDaniel Henrique Barboza } 1846246d76ebSDaniel Henrique Barboza 18478b020b5eSDaniel Henrique Barboza static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) 1848a5fcf0e3SDaniel Henrique Barboza { 18498b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 18508b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1851a5fcf0e3SDaniel Henrique Barboza char buf[32]; /* hopefully big enough */ 1852a5fcf0e3SDaniel Henrique Barboza int fd; 1853a5fcf0e3SDaniel Henrique Barboza ssize_t ret; 1854a5fcf0e3SDaniel Henrique Barboza 18558b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 18568b020b5eSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1857a5fcf0e3SDaniel Henrique Barboza return false; 1858a5fcf0e3SDaniel Henrique Barboza } 1859a5fcf0e3SDaniel Henrique Barboza 1860a5fcf0e3SDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_RDONLY); 1861a5fcf0e3SDaniel Henrique Barboza if (fd < 0) { 1862a5fcf0e3SDaniel Henrique Barboza return false; 1863a5fcf0e3SDaniel Henrique Barboza } 1864a5fcf0e3SDaniel Henrique Barboza 1865a5fcf0e3SDaniel Henrique Barboza ret = read(fd, buf, sizeof(buf) - 1); 1866d9c745c1SPaolo Bonzini close(fd); 1867a5fcf0e3SDaniel Henrique Barboza if (ret <= 0) { 1868a5fcf0e3SDaniel Henrique Barboza return false; 1869a5fcf0e3SDaniel Henrique Barboza } 1870a5fcf0e3SDaniel Henrique Barboza buf[ret] = '\0'; 1871a5fcf0e3SDaniel Henrique Barboza 1872a5fcf0e3SDaniel Henrique Barboza if (strstr(buf, sysfile_str)) { 1873a5fcf0e3SDaniel Henrique Barboza return true; 1874a5fcf0e3SDaniel Henrique Barboza } 1875a5fcf0e3SDaniel Henrique Barboza return false; 1876a5fcf0e3SDaniel Henrique Barboza } 1877a5fcf0e3SDaniel Henrique Barboza 18788b020b5eSDaniel Henrique Barboza static void linux_sys_state_suspend(SuspendMode mode, Error **errp) 1879246d76ebSDaniel Henrique Barboza { 1880246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 18818b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 18828b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1883246d76ebSDaniel Henrique Barboza pid_t pid; 1884246d76ebSDaniel Henrique Barboza int status; 1885246d76ebSDaniel Henrique Barboza 18868b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 1887246d76ebSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1888246d76ebSDaniel Henrique Barboza return; 1889246d76ebSDaniel Henrique Barboza } 1890246d76ebSDaniel Henrique Barboza 1891246d76ebSDaniel Henrique Barboza pid = fork(); 1892246d76ebSDaniel Henrique Barboza if (!pid) { 1893246d76ebSDaniel Henrique Barboza /* child */ 1894246d76ebSDaniel Henrique Barboza int fd; 1895246d76ebSDaniel Henrique Barboza 1896246d76ebSDaniel Henrique Barboza setsid(); 1897246d76ebSDaniel Henrique Barboza reopen_fd_to_null(0); 1898246d76ebSDaniel Henrique Barboza reopen_fd_to_null(1); 1899246d76ebSDaniel Henrique Barboza reopen_fd_to_null(2); 1900246d76ebSDaniel Henrique Barboza 1901246d76ebSDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_WRONLY); 1902246d76ebSDaniel Henrique Barboza if (fd < 0) { 1903246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1904246d76ebSDaniel Henrique Barboza } 1905246d76ebSDaniel Henrique Barboza 1906246d76ebSDaniel Henrique Barboza if (write(fd, sysfile_str, strlen(sysfile_str)) < 0) { 1907246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1908246d76ebSDaniel Henrique Barboza } 1909246d76ebSDaniel Henrique Barboza 1910246d76ebSDaniel Henrique Barboza _exit(EXIT_SUCCESS); 1911246d76ebSDaniel Henrique Barboza } else if (pid < 0) { 1912246d76ebSDaniel Henrique Barboza error_setg_errno(errp, errno, "failed to create child process"); 1913246d76ebSDaniel Henrique Barboza return; 1914246d76ebSDaniel Henrique Barboza } 1915246d76ebSDaniel Henrique Barboza 1916246d76ebSDaniel Henrique Barboza ga_wait_child(pid, &status, &local_err); 1917246d76ebSDaniel Henrique Barboza if (local_err) { 1918246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 1919246d76ebSDaniel Henrique Barboza return; 1920246d76ebSDaniel Henrique Barboza } 1921246d76ebSDaniel Henrique Barboza 1922246d76ebSDaniel Henrique Barboza if (WEXITSTATUS(status)) { 1923246d76ebSDaniel Henrique Barboza error_setg(errp, "child process has failed to suspend"); 1924246d76ebSDaniel Henrique Barboza } 1925246d76ebSDaniel Henrique Barboza 1926246d76ebSDaniel Henrique Barboza } 1927246d76ebSDaniel Henrique Barboza 19288b020b5eSDaniel Henrique Barboza static void guest_suspend(SuspendMode mode, Error **errp) 192911d0f125SLuiz Capitulino { 19307b376087SLuiz Capitulino Error *local_err = NULL; 193173e1d8ebSDaniel Henrique Barboza bool mode_supported = false; 193211d0f125SLuiz Capitulino 193373e1d8ebSDaniel Henrique Barboza if (systemd_supports_mode(mode, &local_err)) { 193473e1d8ebSDaniel Henrique Barboza mode_supported = true; 1935067927d6SDaniel Henrique Barboza systemd_suspend(mode, &local_err); 193673e1d8ebSDaniel Henrique Barboza } 193773e1d8ebSDaniel Henrique Barboza 1938067927d6SDaniel Henrique Barboza if (!local_err) { 1939067927d6SDaniel Henrique Barboza return; 1940067927d6SDaniel Henrique Barboza } 1941067927d6SDaniel Henrique Barboza 1942067927d6SDaniel Henrique Barboza error_free(local_err); 19436a4a3853SVladimir Sementsov-Ogievskiy local_err = NULL; 1944067927d6SDaniel Henrique Barboza 194573e1d8ebSDaniel Henrique Barboza if (pmutils_supports_mode(mode, &local_err)) { 194673e1d8ebSDaniel Henrique Barboza mode_supported = true; 19478b020b5eSDaniel Henrique Barboza pmutils_suspend(mode, &local_err); 194873e1d8ebSDaniel Henrique Barboza } 194973e1d8ebSDaniel Henrique Barboza 1950246d76ebSDaniel Henrique Barboza if (!local_err) { 1951304a0fcbSDaniel Henrique Barboza return; 1952304a0fcbSDaniel Henrique Barboza } 1953304a0fcbSDaniel Henrique Barboza 1954246d76ebSDaniel Henrique Barboza error_free(local_err); 19556a4a3853SVladimir Sementsov-Ogievskiy local_err = NULL; 195611d0f125SLuiz Capitulino 195773e1d8ebSDaniel Henrique Barboza if (linux_sys_state_supports_mode(mode, &local_err)) { 195873e1d8ebSDaniel Henrique Barboza mode_supported = true; 19598b020b5eSDaniel Henrique Barboza linux_sys_state_suspend(mode, &local_err); 196073e1d8ebSDaniel Henrique Barboza } 196173e1d8ebSDaniel Henrique Barboza 196273e1d8ebSDaniel Henrique Barboza if (!mode_supported) { 19636a4a3853SVladimir Sementsov-Ogievskiy error_free(local_err); 196473e1d8ebSDaniel Henrique Barboza error_setg(errp, 196573e1d8ebSDaniel Henrique Barboza "the requested suspend mode is not supported by the guest"); 1966b2322003SMarkus Armbruster } else { 196777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 19687b376087SLuiz Capitulino } 196911d0f125SLuiz Capitulino } 197011d0f125SLuiz Capitulino 197177dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 197211d0f125SLuiz Capitulino { 1973304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_DISK, errp); 197411d0f125SLuiz Capitulino } 197511d0f125SLuiz Capitulino 197677dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 1977fbf42210SLuiz Capitulino { 1978304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_RAM, errp); 1979fbf42210SLuiz Capitulino } 1980fbf42210SLuiz Capitulino 198177dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 198295f4f404SLuiz Capitulino { 1983304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_HYBRID, errp); 198495f4f404SLuiz Capitulino } 198595f4f404SLuiz Capitulino 1986d2baff62SLaszlo Ersek /* Transfer online/offline status between @vcpu and the guest system. 1987d2baff62SLaszlo Ersek * 1988d2baff62SLaszlo Ersek * On input either @errp or *@errp must be NULL. 1989d2baff62SLaszlo Ersek * 1990d2baff62SLaszlo Ersek * In system-to-@vcpu direction, the following @vcpu fields are accessed: 1991d2baff62SLaszlo Ersek * - R: vcpu->logical_id 1992d2baff62SLaszlo Ersek * - W: vcpu->online 1993d2baff62SLaszlo Ersek * - W: vcpu->can_offline 1994d2baff62SLaszlo Ersek * 1995d2baff62SLaszlo Ersek * In @vcpu-to-system direction, the following @vcpu fields are accessed: 1996d2baff62SLaszlo Ersek * - R: vcpu->logical_id 1997d2baff62SLaszlo Ersek * - R: vcpu->online 1998d2baff62SLaszlo Ersek * 1999d2baff62SLaszlo Ersek * Written members remain unmodified on error. 2000d2baff62SLaszlo Ersek */ 2001d2baff62SLaszlo Ersek static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, 2002b4bf912aSIgor Mammedov char *dirpath, Error **errp) 2003d2baff62SLaszlo Ersek { 2004b4bf912aSIgor Mammedov int fd; 2005b4bf912aSIgor Mammedov int res; 2006d2baff62SLaszlo Ersek int dirfd; 2007b4bf912aSIgor Mammedov static const char fn[] = "online"; 2008d2baff62SLaszlo Ersek 2009d2baff62SLaszlo Ersek dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2010d2baff62SLaszlo Ersek if (dirfd == -1) { 2011d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2012b4bf912aSIgor Mammedov return; 2013b4bf912aSIgor Mammedov } 2014d2baff62SLaszlo Ersek 2015d2baff62SLaszlo Ersek fd = openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); 2016d2baff62SLaszlo Ersek if (fd == -1) { 2017d2baff62SLaszlo Ersek if (errno != ENOENT) { 2018d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); 2019d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2020d2baff62SLaszlo Ersek vcpu->online = true; 2021d2baff62SLaszlo Ersek vcpu->can_offline = false; 2022d2baff62SLaszlo Ersek } else if (!vcpu->online) { 2023d2baff62SLaszlo Ersek error_setg(errp, "logical processor #%" PRId64 " can't be " 2024d2baff62SLaszlo Ersek "offlined", vcpu->logical_id); 2025d2baff62SLaszlo Ersek } /* otherwise pretend successful re-onlining */ 2026d2baff62SLaszlo Ersek } else { 2027d2baff62SLaszlo Ersek unsigned char status; 2028d2baff62SLaszlo Ersek 2029d2baff62SLaszlo Ersek res = pread(fd, &status, 1, 0); 2030d2baff62SLaszlo Ersek if (res == -1) { 2031d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); 2032d2baff62SLaszlo Ersek } else if (res == 0) { 2033d2baff62SLaszlo Ersek error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, 2034d2baff62SLaszlo Ersek fn); 2035d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2036d2baff62SLaszlo Ersek vcpu->online = (status != '0'); 2037d2baff62SLaszlo Ersek vcpu->can_offline = true; 2038d2baff62SLaszlo Ersek } else if (vcpu->online != (status != '0')) { 2039d2baff62SLaszlo Ersek status = '0' + vcpu->online; 2040d2baff62SLaszlo Ersek if (pwrite(fd, &status, 1, 0) == -1) { 2041d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, 2042d2baff62SLaszlo Ersek fn); 2043d2baff62SLaszlo Ersek } 2044d2baff62SLaszlo Ersek } /* otherwise pretend successful re-(on|off)-lining */ 2045d2baff62SLaszlo Ersek 2046d2baff62SLaszlo Ersek res = close(fd); 2047d2baff62SLaszlo Ersek g_assert(res == 0); 2048d2baff62SLaszlo Ersek } 2049d2baff62SLaszlo Ersek 2050d2baff62SLaszlo Ersek res = close(dirfd); 2051d2baff62SLaszlo Ersek g_assert(res == 0); 2052d2baff62SLaszlo Ersek } 2053d2baff62SLaszlo Ersek 2054d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2055d2baff62SLaszlo Ersek { 2056c3033fd3SEric Blake GuestLogicalProcessorList *head, **tail; 205727e7de3cSLin Ma const char *cpu_dir = "/sys/devices/system/cpu"; 205827e7de3cSLin Ma const gchar *line; 205927e7de3cSLin Ma g_autoptr(GDir) cpu_gdir = NULL; 2060d2baff62SLaszlo Ersek Error *local_err = NULL; 2061d2baff62SLaszlo Ersek 2062d2baff62SLaszlo Ersek head = NULL; 2063c3033fd3SEric Blake tail = &head; 206427e7de3cSLin Ma cpu_gdir = g_dir_open(cpu_dir, 0, NULL); 2065d2baff62SLaszlo Ersek 206627e7de3cSLin Ma if (cpu_gdir == NULL) { 206727e7de3cSLin Ma error_setg_errno(errp, errno, "failed to list entries: %s", cpu_dir); 206827e7de3cSLin Ma return NULL; 206927e7de3cSLin Ma } 207027e7de3cSLin Ma 207127e7de3cSLin Ma while (local_err == NULL && (line = g_dir_read_name(cpu_gdir)) != NULL) { 2072d2baff62SLaszlo Ersek GuestLogicalProcessor *vcpu; 207327e7de3cSLin Ma int64_t id; 207427e7de3cSLin Ma if (sscanf(line, "cpu%" PRId64, &id)) { 207527e7de3cSLin Ma g_autofree char *path = g_strdup_printf("/sys/devices/system/cpu/" 207627e7de3cSLin Ma "cpu%" PRId64 "/", id); 2077d2baff62SLaszlo Ersek vcpu = g_malloc0(sizeof *vcpu); 2078b4bf912aSIgor Mammedov vcpu->logical_id = id; 2079d2baff62SLaszlo Ersek vcpu->has_can_offline = true; /* lolspeak ftw */ 2080b4bf912aSIgor Mammedov transfer_vcpu(vcpu, true, path, &local_err); 2081c3033fd3SEric Blake QAPI_LIST_APPEND(tail, vcpu); 2082d2baff62SLaszlo Ersek } 2083b4bf912aSIgor Mammedov } 2084d2baff62SLaszlo Ersek 2085d2baff62SLaszlo Ersek if (local_err == NULL) { 2086d2baff62SLaszlo Ersek /* there's no guest with zero VCPUs */ 2087d2baff62SLaszlo Ersek g_assert(head != NULL); 2088d2baff62SLaszlo Ersek return head; 2089d2baff62SLaszlo Ersek } 2090d2baff62SLaszlo Ersek 2091d2baff62SLaszlo Ersek qapi_free_GuestLogicalProcessorList(head); 2092d2baff62SLaszlo Ersek error_propagate(errp, local_err); 2093d2baff62SLaszlo Ersek return NULL; 2094d2baff62SLaszlo Ersek } 2095d2baff62SLaszlo Ersek 2096cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2097cbb65fc2SLaszlo Ersek { 2098cbb65fc2SLaszlo Ersek int64_t processed; 2099cbb65fc2SLaszlo Ersek Error *local_err = NULL; 2100cbb65fc2SLaszlo Ersek 2101cbb65fc2SLaszlo Ersek processed = 0; 2102cbb65fc2SLaszlo Ersek while (vcpus != NULL) { 2103b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2104b4bf912aSIgor Mammedov vcpus->value->logical_id); 2105b4bf912aSIgor Mammedov 2106b4bf912aSIgor Mammedov transfer_vcpu(vcpus->value, false, path, &local_err); 2107b4bf912aSIgor Mammedov g_free(path); 2108cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2109cbb65fc2SLaszlo Ersek break; 2110cbb65fc2SLaszlo Ersek } 2111cbb65fc2SLaszlo Ersek ++processed; 2112cbb65fc2SLaszlo Ersek vcpus = vcpus->next; 2113cbb65fc2SLaszlo Ersek } 2114cbb65fc2SLaszlo Ersek 2115cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2116cbb65fc2SLaszlo Ersek if (processed == 0) { 2117cbb65fc2SLaszlo Ersek error_propagate(errp, local_err); 2118cbb65fc2SLaszlo Ersek } else { 2119cbb65fc2SLaszlo Ersek error_free(local_err); 2120cbb65fc2SLaszlo Ersek } 2121cbb65fc2SLaszlo Ersek } 2122cbb65fc2SLaszlo Ersek 2123cbb65fc2SLaszlo Ersek return processed; 2124cbb65fc2SLaszlo Ersek } 2125*4fd0642eSAlexander Ivanov #endif /* __linux__ */ 2126cbb65fc2SLaszlo Ersek 2127*4fd0642eSAlexander Ivanov #if defined(__linux__) || defined(__FreeBSD__) 2128215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2129215a2771SDaniel P. Berrange const char *password, 2130215a2771SDaniel P. Berrange bool crypted, 2131215a2771SDaniel P. Berrange Error **errp) 2132215a2771SDaniel P. Berrange { 2133215a2771SDaniel P. Berrange Error *local_err = NULL; 2134215a2771SDaniel P. Berrange char *passwd_path = NULL; 2135215a2771SDaniel P. Berrange pid_t pid; 2136215a2771SDaniel P. Berrange int status; 2137215a2771SDaniel P. Berrange int datafd[2] = { -1, -1 }; 2138215a2771SDaniel P. Berrange char *rawpasswddata = NULL; 2139215a2771SDaniel P. Berrange size_t rawpasswdlen; 2140215a2771SDaniel P. Berrange char *chpasswddata = NULL; 2141215a2771SDaniel P. Berrange size_t chpasswdlen; 2142215a2771SDaniel P. Berrange 2143920639caSDaniel P. Berrange rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 2144920639caSDaniel P. Berrange if (!rawpasswddata) { 2145920639caSDaniel P. Berrange return; 2146920639caSDaniel P. Berrange } 2147215a2771SDaniel P. Berrange rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 2148215a2771SDaniel P. Berrange rawpasswddata[rawpasswdlen] = '\0'; 2149215a2771SDaniel P. Berrange 2150215a2771SDaniel P. Berrange if (strchr(rawpasswddata, '\n')) { 2151215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in raw password"); 2152215a2771SDaniel P. Berrange goto out; 2153215a2771SDaniel P. Berrange } 2154215a2771SDaniel P. Berrange 2155215a2771SDaniel P. Berrange if (strchr(username, '\n') || 2156215a2771SDaniel P. Berrange strchr(username, ':')) { 2157215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in username"); 2158215a2771SDaniel P. Berrange goto out; 2159215a2771SDaniel P. Berrange } 2160215a2771SDaniel P. Berrange 2161*4fd0642eSAlexander Ivanov #ifdef __FreeBSD__ 2162*4fd0642eSAlexander Ivanov chpasswddata = g_strdup(rawpasswddata); 2163*4fd0642eSAlexander Ivanov passwd_path = g_find_program_in_path("pw"); 2164*4fd0642eSAlexander Ivanov #else 2165215a2771SDaniel P. Berrange chpasswddata = g_strdup_printf("%s:%s\n", username, rawpasswddata); 2166215a2771SDaniel P. Berrange passwd_path = g_find_program_in_path("chpasswd"); 2167*4fd0642eSAlexander Ivanov #endif 2168*4fd0642eSAlexander Ivanov 2169*4fd0642eSAlexander Ivanov chpasswdlen = strlen(chpasswddata); 2170215a2771SDaniel P. Berrange 2171215a2771SDaniel P. Berrange if (!passwd_path) { 2172215a2771SDaniel P. Berrange error_setg(errp, "cannot find 'passwd' program in PATH"); 2173215a2771SDaniel P. Berrange goto out; 2174215a2771SDaniel P. Berrange } 2175215a2771SDaniel P. Berrange 2176ed78331dSMarc-André Lureau if (!g_unix_open_pipe(datafd, FD_CLOEXEC, NULL)) { 2177215a2771SDaniel P. Berrange error_setg(errp, "cannot create pipe FDs"); 2178215a2771SDaniel P. Berrange goto out; 2179215a2771SDaniel P. Berrange } 2180215a2771SDaniel P. Berrange 2181215a2771SDaniel P. Berrange pid = fork(); 2182215a2771SDaniel P. Berrange if (pid == 0) { 2183215a2771SDaniel P. Berrange close(datafd[1]); 2184215a2771SDaniel P. Berrange /* child */ 2185215a2771SDaniel P. Berrange setsid(); 2186215a2771SDaniel P. Berrange dup2(datafd[0], 0); 2187215a2771SDaniel P. Berrange reopen_fd_to_null(1); 2188215a2771SDaniel P. Berrange reopen_fd_to_null(2); 2189215a2771SDaniel P. Berrange 2190*4fd0642eSAlexander Ivanov #ifdef __FreeBSD__ 2191*4fd0642eSAlexander Ivanov const char *h_arg; 2192*4fd0642eSAlexander Ivanov h_arg = (crypted) ? "-H" : "-h"; 2193*4fd0642eSAlexander Ivanov execl(passwd_path, "pw", "usermod", "-n", username, h_arg, "0", NULL); 2194*4fd0642eSAlexander Ivanov #else 2195215a2771SDaniel P. Berrange if (crypted) { 2196fcc41961SMarc-André Lureau execl(passwd_path, "chpasswd", "-e", NULL); 2197215a2771SDaniel P. Berrange } else { 2198fcc41961SMarc-André Lureau execl(passwd_path, "chpasswd", NULL); 2199215a2771SDaniel P. Berrange } 2200*4fd0642eSAlexander Ivanov #endif 2201215a2771SDaniel P. Berrange _exit(EXIT_FAILURE); 2202215a2771SDaniel P. Berrange } else if (pid < 0) { 2203215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "failed to create child process"); 2204215a2771SDaniel P. Berrange goto out; 2205215a2771SDaniel P. Berrange } 2206215a2771SDaniel P. Berrange close(datafd[0]); 2207215a2771SDaniel P. Berrange datafd[0] = -1; 2208215a2771SDaniel P. Berrange 2209215a2771SDaniel P. Berrange if (qemu_write_full(datafd[1], chpasswddata, chpasswdlen) != chpasswdlen) { 2210215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "cannot write new account password"); 2211215a2771SDaniel P. Berrange goto out; 2212215a2771SDaniel P. Berrange } 2213215a2771SDaniel P. Berrange close(datafd[1]); 2214215a2771SDaniel P. Berrange datafd[1] = -1; 2215215a2771SDaniel P. Berrange 2216215a2771SDaniel P. Berrange ga_wait_child(pid, &status, &local_err); 2217215a2771SDaniel P. Berrange if (local_err) { 2218215a2771SDaniel P. Berrange error_propagate(errp, local_err); 2219215a2771SDaniel P. Berrange goto out; 2220215a2771SDaniel P. Berrange } 2221215a2771SDaniel P. Berrange 2222215a2771SDaniel P. Berrange if (!WIFEXITED(status)) { 2223215a2771SDaniel P. Berrange error_setg(errp, "child process has terminated abnormally"); 2224215a2771SDaniel P. Berrange goto out; 2225215a2771SDaniel P. Berrange } 2226215a2771SDaniel P. Berrange 2227215a2771SDaniel P. Berrange if (WEXITSTATUS(status)) { 2228215a2771SDaniel P. Berrange error_setg(errp, "child process has failed to set user password"); 2229215a2771SDaniel P. Berrange goto out; 2230215a2771SDaniel P. Berrange } 2231215a2771SDaniel P. Berrange 2232215a2771SDaniel P. Berrange out: 2233215a2771SDaniel P. Berrange g_free(chpasswddata); 2234215a2771SDaniel P. Berrange g_free(rawpasswddata); 2235215a2771SDaniel P. Berrange g_free(passwd_path); 2236215a2771SDaniel P. Berrange if (datafd[0] != -1) { 2237215a2771SDaniel P. Berrange close(datafd[0]); 2238215a2771SDaniel P. Berrange } 2239215a2771SDaniel P. Berrange if (datafd[1] != -1) { 2240215a2771SDaniel P. Berrange close(datafd[1]); 2241215a2771SDaniel P. Berrange } 2242215a2771SDaniel P. Berrange } 2243*4fd0642eSAlexander Ivanov #else /* __linux__ || __FreeBSD__ */ 2244*4fd0642eSAlexander Ivanov void qmp_guest_set_user_password(const char *username, 2245*4fd0642eSAlexander Ivanov const char *password, 2246*4fd0642eSAlexander Ivanov bool crypted, 2247*4fd0642eSAlexander Ivanov Error **errp) 2248*4fd0642eSAlexander Ivanov { 2249*4fd0642eSAlexander Ivanov error_setg(errp, QERR_UNSUPPORTED); 2250*4fd0642eSAlexander Ivanov } 2251*4fd0642eSAlexander Ivanov #endif /* __linux__ || __FreeBSD__ */ 2252215a2771SDaniel P. Berrange 2253*4fd0642eSAlexander Ivanov #ifdef __linux__ 2254bd240fcaSzhanghailiang static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, 2255bd240fcaSzhanghailiang int size, Error **errp) 2256bd240fcaSzhanghailiang { 2257bd240fcaSzhanghailiang int fd; 2258bd240fcaSzhanghailiang int res; 2259bd240fcaSzhanghailiang 2260bd240fcaSzhanghailiang errno = 0; 2261bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_RDONLY); 2262bd240fcaSzhanghailiang if (fd == -1) { 2263bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2264bd240fcaSzhanghailiang return; 2265bd240fcaSzhanghailiang } 2266bd240fcaSzhanghailiang 2267bd240fcaSzhanghailiang res = pread(fd, buf, size, 0); 2268bd240fcaSzhanghailiang if (res == -1) { 2269bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); 2270bd240fcaSzhanghailiang } else if (res == 0) { 2271bd240fcaSzhanghailiang error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathname); 2272bd240fcaSzhanghailiang } 2273bd240fcaSzhanghailiang close(fd); 2274bd240fcaSzhanghailiang } 2275bd240fcaSzhanghailiang 2276bd240fcaSzhanghailiang static void ga_write_sysfs_file(int dirfd, const char *pathname, 2277bd240fcaSzhanghailiang const char *buf, int size, Error **errp) 2278bd240fcaSzhanghailiang { 2279bd240fcaSzhanghailiang int fd; 2280bd240fcaSzhanghailiang 2281bd240fcaSzhanghailiang errno = 0; 2282bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_WRONLY); 2283bd240fcaSzhanghailiang if (fd == -1) { 2284bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2285bd240fcaSzhanghailiang return; 2286bd240fcaSzhanghailiang } 2287bd240fcaSzhanghailiang 2288bd240fcaSzhanghailiang if (pwrite(fd, buf, size, 0) == -1) { 2289bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname); 2290bd240fcaSzhanghailiang } 2291bd240fcaSzhanghailiang 2292bd240fcaSzhanghailiang close(fd); 2293bd240fcaSzhanghailiang } 2294bd240fcaSzhanghailiang 2295bd240fcaSzhanghailiang /* Transfer online/offline status between @mem_blk and the guest system. 2296bd240fcaSzhanghailiang * 2297bd240fcaSzhanghailiang * On input either @errp or *@errp must be NULL. 2298bd240fcaSzhanghailiang * 2299bd240fcaSzhanghailiang * In system-to-@mem_blk direction, the following @mem_blk fields are accessed: 2300bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2301bd240fcaSzhanghailiang * - W: mem_blk->online 2302bd240fcaSzhanghailiang * - W: mem_blk->can_offline 2303bd240fcaSzhanghailiang * 2304bd240fcaSzhanghailiang * In @mem_blk-to-system direction, the following @mem_blk fields are accessed: 2305bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2306bd240fcaSzhanghailiang * - R: mem_blk->online 2307bd240fcaSzhanghailiang *- R: mem_blk->can_offline 2308bd240fcaSzhanghailiang * Written members remain unmodified on error. 2309bd240fcaSzhanghailiang */ 2310bd240fcaSzhanghailiang static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memblk, 2311bd240fcaSzhanghailiang GuestMemoryBlockResponse *result, 2312bd240fcaSzhanghailiang Error **errp) 2313bd240fcaSzhanghailiang { 2314bd240fcaSzhanghailiang char *dirpath; 2315bd240fcaSzhanghailiang int dirfd; 2316bd240fcaSzhanghailiang char *status; 2317bd240fcaSzhanghailiang Error *local_err = NULL; 2318bd240fcaSzhanghailiang 2319bd240fcaSzhanghailiang if (!sys2memblk) { 2320bd240fcaSzhanghailiang DIR *dp; 2321bd240fcaSzhanghailiang 2322bd240fcaSzhanghailiang if (!result) { 2323bd240fcaSzhanghailiang error_setg(errp, "Internal error, 'result' should not be NULL"); 2324bd240fcaSzhanghailiang return; 2325bd240fcaSzhanghailiang } 2326bd240fcaSzhanghailiang errno = 0; 2327bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2328bd240fcaSzhanghailiang /* if there is no 'memory' directory in sysfs, 2329bd240fcaSzhanghailiang * we think this VM does not support online/offline memory block, 2330bd240fcaSzhanghailiang * any other solution? 2331bd240fcaSzhanghailiang */ 23329879f5acSPhilippe Mathieu-Daudé if (!dp) { 23339879f5acSPhilippe Mathieu-Daudé if (errno == ENOENT) { 2334bd240fcaSzhanghailiang result->response = 2335bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 23369879f5acSPhilippe Mathieu-Daudé } 2337bd240fcaSzhanghailiang goto out1; 2338bd240fcaSzhanghailiang } 2339bd240fcaSzhanghailiang closedir(dp); 2340bd240fcaSzhanghailiang } 2341bd240fcaSzhanghailiang 2342bd240fcaSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/memory%" PRId64 "/", 2343bd240fcaSzhanghailiang mem_blk->phys_index); 2344bd240fcaSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2345bd240fcaSzhanghailiang if (dirfd == -1) { 2346bd240fcaSzhanghailiang if (sys2memblk) { 2347bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2348bd240fcaSzhanghailiang } else { 2349bd240fcaSzhanghailiang if (errno == ENOENT) { 2350bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_FOUND; 2351bd240fcaSzhanghailiang } else { 2352bd240fcaSzhanghailiang result->response = 2353bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2354bd240fcaSzhanghailiang } 2355bd240fcaSzhanghailiang } 2356bd240fcaSzhanghailiang g_free(dirpath); 2357bd240fcaSzhanghailiang goto out1; 2358bd240fcaSzhanghailiang } 2359bd240fcaSzhanghailiang g_free(dirpath); 2360bd240fcaSzhanghailiang 2361bd240fcaSzhanghailiang status = g_malloc0(10); 2362bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); 2363bd240fcaSzhanghailiang if (local_err) { 2364bd240fcaSzhanghailiang /* treat with sysfs file that not exist in old kernel */ 2365bd240fcaSzhanghailiang if (errno == ENOENT) { 2366bd240fcaSzhanghailiang error_free(local_err); 2367bd240fcaSzhanghailiang if (sys2memblk) { 2368bd240fcaSzhanghailiang mem_blk->online = true; 2369bd240fcaSzhanghailiang mem_blk->can_offline = false; 2370bd240fcaSzhanghailiang } else if (!mem_blk->online) { 2371bd240fcaSzhanghailiang result->response = 2372bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 2373bd240fcaSzhanghailiang } 2374bd240fcaSzhanghailiang } else { 2375bd240fcaSzhanghailiang if (sys2memblk) { 2376bd240fcaSzhanghailiang error_propagate(errp, local_err); 2377bd240fcaSzhanghailiang } else { 2378b368123dSMarkus Armbruster error_free(local_err); 2379bd240fcaSzhanghailiang result->response = 2380bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2381bd240fcaSzhanghailiang } 2382bd240fcaSzhanghailiang } 2383bd240fcaSzhanghailiang goto out2; 2384bd240fcaSzhanghailiang } 2385bd240fcaSzhanghailiang 2386bd240fcaSzhanghailiang if (sys2memblk) { 2387bd240fcaSzhanghailiang char removable = '0'; 2388bd240fcaSzhanghailiang 2389bd240fcaSzhanghailiang mem_blk->online = (strncmp(status, "online", 6) == 0); 2390bd240fcaSzhanghailiang 2391bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); 2392bd240fcaSzhanghailiang if (local_err) { 239367cc32ebSVeres Lajos /* if no 'removable' file, it doesn't support offline mem blk */ 2394bd240fcaSzhanghailiang if (errno == ENOENT) { 2395bd240fcaSzhanghailiang error_free(local_err); 2396bd240fcaSzhanghailiang mem_blk->can_offline = false; 2397bd240fcaSzhanghailiang } else { 2398bd240fcaSzhanghailiang error_propagate(errp, local_err); 2399bd240fcaSzhanghailiang } 2400bd240fcaSzhanghailiang } else { 2401bd240fcaSzhanghailiang mem_blk->can_offline = (removable != '0'); 2402bd240fcaSzhanghailiang } 2403bd240fcaSzhanghailiang } else { 2404bd240fcaSzhanghailiang if (mem_blk->online != (strncmp(status, "online", 6) == 0)) { 24057064024dSMarc-André Lureau const char *new_state = mem_blk->online ? "online" : "offline"; 2406bd240fcaSzhanghailiang 2407bd240fcaSzhanghailiang ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_state), 2408bd240fcaSzhanghailiang &local_err); 2409bd240fcaSzhanghailiang if (local_err) { 2410bd240fcaSzhanghailiang error_free(local_err); 2411bd240fcaSzhanghailiang result->response = 2412bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2413bd240fcaSzhanghailiang goto out2; 2414bd240fcaSzhanghailiang } 2415bd240fcaSzhanghailiang 2416bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; 2417bd240fcaSzhanghailiang result->has_error_code = false; 2418bd240fcaSzhanghailiang } /* otherwise pretend successful re-(on|off)-lining */ 2419bd240fcaSzhanghailiang } 2420bd240fcaSzhanghailiang g_free(status); 2421bd240fcaSzhanghailiang close(dirfd); 2422bd240fcaSzhanghailiang return; 2423bd240fcaSzhanghailiang 2424bd240fcaSzhanghailiang out2: 2425bd240fcaSzhanghailiang g_free(status); 2426bd240fcaSzhanghailiang close(dirfd); 2427bd240fcaSzhanghailiang out1: 2428bd240fcaSzhanghailiang if (!sys2memblk) { 2429bd240fcaSzhanghailiang result->has_error_code = true; 2430bd240fcaSzhanghailiang result->error_code = errno; 2431bd240fcaSzhanghailiang } 2432bd240fcaSzhanghailiang } 2433bd240fcaSzhanghailiang 2434a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2435a065aaa9Szhanghailiang { 2436c3033fd3SEric Blake GuestMemoryBlockList *head, **tail; 2437bd240fcaSzhanghailiang Error *local_err = NULL; 2438bd240fcaSzhanghailiang struct dirent *de; 2439bd240fcaSzhanghailiang DIR *dp; 2440bd240fcaSzhanghailiang 2441bd240fcaSzhanghailiang head = NULL; 2442c3033fd3SEric Blake tail = &head; 2443bd240fcaSzhanghailiang 2444bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2445bd240fcaSzhanghailiang if (!dp) { 2446f693fe6eSMichael Roth /* it's ok if this happens to be a system that doesn't expose 2447f693fe6eSMichael Roth * memory blocks via sysfs, but otherwise we should report 2448f693fe6eSMichael Roth * an error 2449f693fe6eSMichael Roth */ 2450f693fe6eSMichael Roth if (errno != ENOENT) { 2451bd240fcaSzhanghailiang error_setg_errno(errp, errno, "Can't open directory" 24529af9e0feSMarkus Armbruster "\"/sys/devices/system/memory/\""); 2453f693fe6eSMichael Roth } 2454bd240fcaSzhanghailiang return NULL; 2455bd240fcaSzhanghailiang } 2456bd240fcaSzhanghailiang 2457bd240fcaSzhanghailiang /* Note: the phys_index of memory block may be discontinuous, 2458bd240fcaSzhanghailiang * this is because a memblk is the unit of the Sparse Memory design, which 2459bd240fcaSzhanghailiang * allows discontinuous memory ranges (ex. NUMA), so here we should 2460bd240fcaSzhanghailiang * traverse the memory block directory. 2461bd240fcaSzhanghailiang */ 2462bd240fcaSzhanghailiang while ((de = readdir(dp)) != NULL) { 2463bd240fcaSzhanghailiang GuestMemoryBlock *mem_blk; 2464bd240fcaSzhanghailiang 2465bd240fcaSzhanghailiang if ((strncmp(de->d_name, "memory", 6) != 0) || 2466bd240fcaSzhanghailiang !(de->d_type & DT_DIR)) { 2467bd240fcaSzhanghailiang continue; 2468bd240fcaSzhanghailiang } 2469bd240fcaSzhanghailiang 2470bd240fcaSzhanghailiang mem_blk = g_malloc0(sizeof *mem_blk); 2471bd240fcaSzhanghailiang /* The d_name is "memoryXXX", phys_index is block id, same as XXX */ 2472bd240fcaSzhanghailiang mem_blk->phys_index = strtoul(&de->d_name[6], NULL, 10); 2473bd240fcaSzhanghailiang mem_blk->has_can_offline = true; /* lolspeak ftw */ 2474bd240fcaSzhanghailiang transfer_memory_block(mem_blk, true, NULL, &local_err); 24754155c998SMarkus Armbruster if (local_err) { 24764155c998SMarkus Armbruster break; 24774155c998SMarkus Armbruster } 2478bd240fcaSzhanghailiang 2479c3033fd3SEric Blake QAPI_LIST_APPEND(tail, mem_blk); 2480bd240fcaSzhanghailiang } 2481bd240fcaSzhanghailiang 2482bd240fcaSzhanghailiang closedir(dp); 2483bd240fcaSzhanghailiang if (local_err == NULL) { 2484bd240fcaSzhanghailiang /* there's no guest with zero memory blocks */ 2485bd240fcaSzhanghailiang if (head == NULL) { 2486bd240fcaSzhanghailiang error_setg(errp, "guest reported zero memory blocks!"); 2487bd240fcaSzhanghailiang } 2488bd240fcaSzhanghailiang return head; 2489bd240fcaSzhanghailiang } 2490bd240fcaSzhanghailiang 2491bd240fcaSzhanghailiang qapi_free_GuestMemoryBlockList(head); 2492bd240fcaSzhanghailiang error_propagate(errp, local_err); 2493a065aaa9Szhanghailiang return NULL; 2494a065aaa9Szhanghailiang } 2495a065aaa9Szhanghailiang 2496a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2497a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2498a065aaa9Szhanghailiang { 2499c3033fd3SEric Blake GuestMemoryBlockResponseList *head, **tail; 250032ca7927Szhanghailiang Error *local_err = NULL; 250132ca7927Szhanghailiang 250232ca7927Szhanghailiang head = NULL; 2503c3033fd3SEric Blake tail = &head; 250432ca7927Szhanghailiang 250532ca7927Szhanghailiang while (mem_blks != NULL) { 250632ca7927Szhanghailiang GuestMemoryBlockResponse *result; 250732ca7927Szhanghailiang GuestMemoryBlock *current_mem_blk = mem_blks->value; 250832ca7927Szhanghailiang 250932ca7927Szhanghailiang result = g_malloc0(sizeof(*result)); 251032ca7927Szhanghailiang result->phys_index = current_mem_blk->phys_index; 251132ca7927Szhanghailiang transfer_memory_block(current_mem_blk, false, result, &local_err); 251232ca7927Szhanghailiang if (local_err) { /* should never happen */ 251332ca7927Szhanghailiang goto err; 251432ca7927Szhanghailiang } 251532ca7927Szhanghailiang 2516c3033fd3SEric Blake QAPI_LIST_APPEND(tail, result); 251732ca7927Szhanghailiang mem_blks = mem_blks->next; 251832ca7927Szhanghailiang } 251932ca7927Szhanghailiang 252032ca7927Szhanghailiang return head; 252132ca7927Szhanghailiang err: 252232ca7927Szhanghailiang qapi_free_GuestMemoryBlockResponseList(head); 252332ca7927Szhanghailiang error_propagate(errp, local_err); 2524a065aaa9Szhanghailiang return NULL; 2525a065aaa9Szhanghailiang } 2526a065aaa9Szhanghailiang 2527a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2528a065aaa9Szhanghailiang { 2529ef82b60bSzhanghailiang Error *local_err = NULL; 2530ef82b60bSzhanghailiang char *dirpath; 2531ef82b60bSzhanghailiang int dirfd; 2532ef82b60bSzhanghailiang char *buf; 2533ef82b60bSzhanghailiang GuestMemoryBlockInfo *info; 2534ef82b60bSzhanghailiang 2535ef82b60bSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/"); 2536ef82b60bSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2537ef82b60bSzhanghailiang if (dirfd == -1) { 2538ef82b60bSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2539ef82b60bSzhanghailiang g_free(dirpath); 2540a065aaa9Szhanghailiang return NULL; 2541a065aaa9Szhanghailiang } 2542ef82b60bSzhanghailiang g_free(dirpath); 2543ef82b60bSzhanghailiang 2544ef82b60bSzhanghailiang buf = g_malloc0(20); 2545ef82b60bSzhanghailiang ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); 25468ce1ee46SShannon Zhao close(dirfd); 2547ef82b60bSzhanghailiang if (local_err) { 2548ef82b60bSzhanghailiang g_free(buf); 2549ef82b60bSzhanghailiang error_propagate(errp, local_err); 2550ef82b60bSzhanghailiang return NULL; 2551ef82b60bSzhanghailiang } 2552ef82b60bSzhanghailiang 2553ef82b60bSzhanghailiang info = g_new0(GuestMemoryBlockInfo, 1); 2554ef82b60bSzhanghailiang info->size = strtol(buf, NULL, 16); /* the unit is bytes */ 2555ef82b60bSzhanghailiang 2556ef82b60bSzhanghailiang g_free(buf); 2557ef82b60bSzhanghailiang 2558ef82b60bSzhanghailiang return info; 2559ef82b60bSzhanghailiang } 2560a065aaa9Szhanghailiang 25613569664eSluzhipeng #define MAX_NAME_LEN 128 25623569664eSluzhipeng static GuestDiskStatsInfoList *guest_get_diskstats(Error **errp) 25633569664eSluzhipeng { 25643569664eSluzhipeng #ifdef CONFIG_LINUX 25653569664eSluzhipeng GuestDiskStatsInfoList *head = NULL, **tail = &head; 25663569664eSluzhipeng const char *diskstats = "/proc/diskstats"; 25673569664eSluzhipeng FILE *fp; 25683569664eSluzhipeng size_t n; 25693569664eSluzhipeng char *line = NULL; 25703569664eSluzhipeng 25713569664eSluzhipeng fp = fopen(diskstats, "r"); 25723569664eSluzhipeng if (fp == NULL) { 25733569664eSluzhipeng error_setg_errno(errp, errno, "open(\"%s\")", diskstats); 25743569664eSluzhipeng return NULL; 25753569664eSluzhipeng } 25763569664eSluzhipeng 25773569664eSluzhipeng while (getline(&line, &n, fp) != -1) { 25783569664eSluzhipeng g_autofree GuestDiskStatsInfo *diskstatinfo = NULL; 25793569664eSluzhipeng g_autofree GuestDiskStats *diskstat = NULL; 25803569664eSluzhipeng char dev_name[MAX_NAME_LEN]; 25813569664eSluzhipeng unsigned int ios_pgr, tot_ticks, rq_ticks, wr_ticks, dc_ticks, fl_ticks; 25823569664eSluzhipeng unsigned long rd_ios, rd_merges_or_rd_sec, rd_ticks_or_wr_sec, wr_ios; 25833569664eSluzhipeng unsigned long wr_merges, rd_sec_or_wr_ios, wr_sec; 25843569664eSluzhipeng unsigned long dc_ios, dc_merges, dc_sec, fl_ios; 25853569664eSluzhipeng unsigned int major, minor; 25863569664eSluzhipeng int i; 25873569664eSluzhipeng 25883569664eSluzhipeng i = sscanf(line, "%u %u %s %lu %lu %lu" 25893569664eSluzhipeng "%lu %lu %lu %lu %u %u %u %u" 25903569664eSluzhipeng "%lu %lu %lu %u %lu %u", 25913569664eSluzhipeng &major, &minor, dev_name, 25923569664eSluzhipeng &rd_ios, &rd_merges_or_rd_sec, &rd_sec_or_wr_ios, 25933569664eSluzhipeng &rd_ticks_or_wr_sec, &wr_ios, &wr_merges, &wr_sec, 25943569664eSluzhipeng &wr_ticks, &ios_pgr, &tot_ticks, &rq_ticks, 25953569664eSluzhipeng &dc_ios, &dc_merges, &dc_sec, &dc_ticks, 25963569664eSluzhipeng &fl_ios, &fl_ticks); 25973569664eSluzhipeng 25983569664eSluzhipeng if (i < 7) { 25993569664eSluzhipeng continue; 26003569664eSluzhipeng } 26013569664eSluzhipeng 26023569664eSluzhipeng diskstatinfo = g_new0(GuestDiskStatsInfo, 1); 26033569664eSluzhipeng diskstatinfo->name = g_strdup(dev_name); 26043569664eSluzhipeng diskstatinfo->major = major; 26053569664eSluzhipeng diskstatinfo->minor = minor; 26063569664eSluzhipeng 26073569664eSluzhipeng diskstat = g_new0(GuestDiskStats, 1); 26083569664eSluzhipeng if (i == 7) { 26093569664eSluzhipeng diskstat->has_read_ios = true; 26103569664eSluzhipeng diskstat->read_ios = rd_ios; 26113569664eSluzhipeng diskstat->has_read_sectors = true; 26123569664eSluzhipeng diskstat->read_sectors = rd_merges_or_rd_sec; 26133569664eSluzhipeng diskstat->has_write_ios = true; 26143569664eSluzhipeng diskstat->write_ios = rd_sec_or_wr_ios; 26153569664eSluzhipeng diskstat->has_write_sectors = true; 26163569664eSluzhipeng diskstat->write_sectors = rd_ticks_or_wr_sec; 26173569664eSluzhipeng } 26183569664eSluzhipeng if (i >= 14) { 26193569664eSluzhipeng diskstat->has_read_ios = true; 26203569664eSluzhipeng diskstat->read_ios = rd_ios; 26213569664eSluzhipeng diskstat->has_read_sectors = true; 26223569664eSluzhipeng diskstat->read_sectors = rd_sec_or_wr_ios; 26233569664eSluzhipeng diskstat->has_read_merges = true; 26243569664eSluzhipeng diskstat->read_merges = rd_merges_or_rd_sec; 26253569664eSluzhipeng diskstat->has_read_ticks = true; 26263569664eSluzhipeng diskstat->read_ticks = rd_ticks_or_wr_sec; 26273569664eSluzhipeng diskstat->has_write_ios = true; 26283569664eSluzhipeng diskstat->write_ios = wr_ios; 26293569664eSluzhipeng diskstat->has_write_sectors = true; 26303569664eSluzhipeng diskstat->write_sectors = wr_sec; 26313569664eSluzhipeng diskstat->has_write_merges = true; 26323569664eSluzhipeng diskstat->write_merges = wr_merges; 26333569664eSluzhipeng diskstat->has_write_ticks = true; 26343569664eSluzhipeng diskstat->write_ticks = wr_ticks; 26353569664eSluzhipeng diskstat->has_ios_pgr = true; 26363569664eSluzhipeng diskstat->ios_pgr = ios_pgr; 26373569664eSluzhipeng diskstat->has_total_ticks = true; 26383569664eSluzhipeng diskstat->total_ticks = tot_ticks; 26393569664eSluzhipeng diskstat->has_weight_ticks = true; 26403569664eSluzhipeng diskstat->weight_ticks = rq_ticks; 26413569664eSluzhipeng } 26423569664eSluzhipeng if (i >= 18) { 26433569664eSluzhipeng diskstat->has_discard_ios = true; 26443569664eSluzhipeng diskstat->discard_ios = dc_ios; 26453569664eSluzhipeng diskstat->has_discard_merges = true; 26463569664eSluzhipeng diskstat->discard_merges = dc_merges; 26473569664eSluzhipeng diskstat->has_discard_sectors = true; 26483569664eSluzhipeng diskstat->discard_sectors = dc_sec; 26493569664eSluzhipeng diskstat->has_discard_ticks = true; 26503569664eSluzhipeng diskstat->discard_ticks = dc_ticks; 26513569664eSluzhipeng } 26523569664eSluzhipeng if (i >= 20) { 26533569664eSluzhipeng diskstat->has_flush_ios = true; 26543569664eSluzhipeng diskstat->flush_ios = fl_ios; 26553569664eSluzhipeng diskstat->has_flush_ticks = true; 26563569664eSluzhipeng diskstat->flush_ticks = fl_ticks; 26573569664eSluzhipeng } 26583569664eSluzhipeng 26593569664eSluzhipeng diskstatinfo->stats = g_steal_pointer(&diskstat); 26603569664eSluzhipeng QAPI_LIST_APPEND(tail, diskstatinfo); 26613569664eSluzhipeng diskstatinfo = NULL; 26623569664eSluzhipeng } 26633569664eSluzhipeng free(line); 26643569664eSluzhipeng fclose(fp); 26653569664eSluzhipeng return head; 26663569664eSluzhipeng #else 26673569664eSluzhipeng g_debug("disk stats reporting available only for Linux"); 26683569664eSluzhipeng return NULL; 26693569664eSluzhipeng #endif 26703569664eSluzhipeng } 26713569664eSluzhipeng 26723569664eSluzhipeng GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 26733569664eSluzhipeng { 26743569664eSluzhipeng return guest_get_diskstats(errp); 26753569664eSluzhipeng } 26763569664eSluzhipeng 26771db8a0b0Szhenwei pi GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 26781db8a0b0Szhenwei pi { 26791db8a0b0Szhenwei pi GuestCpuStatsList *head = NULL, **tail = &head; 26801db8a0b0Szhenwei pi const char *cpustats = "/proc/stat"; 26811db8a0b0Szhenwei pi int clk_tck = sysconf(_SC_CLK_TCK); 26821db8a0b0Szhenwei pi FILE *fp; 26831db8a0b0Szhenwei pi size_t n; 26841db8a0b0Szhenwei pi char *line = NULL; 26851db8a0b0Szhenwei pi 26861db8a0b0Szhenwei pi fp = fopen(cpustats, "r"); 26871db8a0b0Szhenwei pi if (fp == NULL) { 26881db8a0b0Szhenwei pi error_setg_errno(errp, errno, "open(\"%s\")", cpustats); 26891db8a0b0Szhenwei pi return NULL; 26901db8a0b0Szhenwei pi } 26911db8a0b0Szhenwei pi 26921db8a0b0Szhenwei pi while (getline(&line, &n, fp) != -1) { 26931db8a0b0Szhenwei pi GuestCpuStats *cpustat = NULL; 26941db8a0b0Szhenwei pi GuestLinuxCpuStats *linuxcpustat; 26951db8a0b0Szhenwei pi int i; 26961db8a0b0Szhenwei pi unsigned long user, system, idle, iowait, irq, softirq, steal, guest; 26971db8a0b0Szhenwei pi unsigned long nice, guest_nice; 26981db8a0b0Szhenwei pi char name[64]; 26991db8a0b0Szhenwei pi 27001db8a0b0Szhenwei pi i = sscanf(line, "%s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", 27011db8a0b0Szhenwei pi name, &user, &nice, &system, &idle, &iowait, &irq, &softirq, 27021db8a0b0Szhenwei pi &steal, &guest, &guest_nice); 27031db8a0b0Szhenwei pi 27041db8a0b0Szhenwei pi /* drop "cpu 1 2 3 ...", get "cpuX 1 2 3 ..." only */ 27051db8a0b0Szhenwei pi if ((i == EOF) || strncmp(name, "cpu", 3) || (name[3] == '\0')) { 27061db8a0b0Szhenwei pi continue; 27071db8a0b0Szhenwei pi } 27081db8a0b0Szhenwei pi 27091db8a0b0Szhenwei pi if (i < 5) { 27101db8a0b0Szhenwei pi slog("Parsing cpu stat from %s failed, see \"man proc\"", cpustats); 27111db8a0b0Szhenwei pi break; 27121db8a0b0Szhenwei pi } 27131db8a0b0Szhenwei pi 27141db8a0b0Szhenwei pi cpustat = g_new0(GuestCpuStats, 1); 27151db8a0b0Szhenwei pi cpustat->type = GUEST_CPU_STATS_TYPE_LINUX; 27161db8a0b0Szhenwei pi 27171db8a0b0Szhenwei pi linuxcpustat = &cpustat->u.q_linux; 27181db8a0b0Szhenwei pi linuxcpustat->cpu = atoi(&name[3]); 27191db8a0b0Szhenwei pi linuxcpustat->user = user * 1000 / clk_tck; 27201db8a0b0Szhenwei pi linuxcpustat->nice = nice * 1000 / clk_tck; 27211db8a0b0Szhenwei pi linuxcpustat->system = system * 1000 / clk_tck; 27221db8a0b0Szhenwei pi linuxcpustat->idle = idle * 1000 / clk_tck; 27231db8a0b0Szhenwei pi 27241db8a0b0Szhenwei pi if (i > 5) { 27251db8a0b0Szhenwei pi linuxcpustat->has_iowait = true; 27261db8a0b0Szhenwei pi linuxcpustat->iowait = iowait * 1000 / clk_tck; 27271db8a0b0Szhenwei pi } 27281db8a0b0Szhenwei pi 27291db8a0b0Szhenwei pi if (i > 6) { 27301db8a0b0Szhenwei pi linuxcpustat->has_irq = true; 27311db8a0b0Szhenwei pi linuxcpustat->irq = irq * 1000 / clk_tck; 27321db8a0b0Szhenwei pi linuxcpustat->has_softirq = true; 27331db8a0b0Szhenwei pi linuxcpustat->softirq = softirq * 1000 / clk_tck; 27341db8a0b0Szhenwei pi } 27351db8a0b0Szhenwei pi 27361db8a0b0Szhenwei pi if (i > 8) { 27371db8a0b0Szhenwei pi linuxcpustat->has_steal = true; 27381db8a0b0Szhenwei pi linuxcpustat->steal = steal * 1000 / clk_tck; 27391db8a0b0Szhenwei pi } 27401db8a0b0Szhenwei pi 27411db8a0b0Szhenwei pi if (i > 9) { 27421db8a0b0Szhenwei pi linuxcpustat->has_guest = true; 27431db8a0b0Szhenwei pi linuxcpustat->guest = guest * 1000 / clk_tck; 27441db8a0b0Szhenwei pi } 27451db8a0b0Szhenwei pi 27461db8a0b0Szhenwei pi if (i > 10) { 27471db8a0b0Szhenwei pi linuxcpustat->has_guest = true; 27481db8a0b0Szhenwei pi linuxcpustat->guest = guest * 1000 / clk_tck; 27491db8a0b0Szhenwei pi linuxcpustat->has_guestnice = true; 27501db8a0b0Szhenwei pi linuxcpustat->guestnice = guest_nice * 1000 / clk_tck; 27511db8a0b0Szhenwei pi } 27521db8a0b0Szhenwei pi 27531db8a0b0Szhenwei pi QAPI_LIST_APPEND(tail, cpustat); 27541db8a0b0Szhenwei pi } 27551db8a0b0Szhenwei pi 27561db8a0b0Szhenwei pi free(line); 27571db8a0b0Szhenwei pi fclose(fp); 27581db8a0b0Szhenwei pi return head; 27591db8a0b0Szhenwei pi } 27601db8a0b0Szhenwei pi 2761e72c3f2eSMichael Roth #else /* defined(__linux__) */ 2762e72c3f2eSMichael Roth 276377dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 2764e72c3f2eSMichael Roth { 2765c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2766e72c3f2eSMichael Roth } 2767e72c3f2eSMichael Roth 276877dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 2769e72c3f2eSMichael Roth { 2770c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2771e72c3f2eSMichael Roth } 2772e72c3f2eSMichael Roth 277377dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 2774e72c3f2eSMichael Roth { 2775c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2776e72c3f2eSMichael Roth } 2777e72c3f2eSMichael Roth 2778d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2779d2baff62SLaszlo Ersek { 2780c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2781d2baff62SLaszlo Ersek return NULL; 2782d2baff62SLaszlo Ersek } 2783d2baff62SLaszlo Ersek 2784cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2785cbb65fc2SLaszlo Ersek { 2786c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2787cbb65fc2SLaszlo Ersek return -1; 2788cbb65fc2SLaszlo Ersek } 2789cbb65fc2SLaszlo Ersek 2790a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2791a065aaa9Szhanghailiang { 2792c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2793a065aaa9Szhanghailiang return NULL; 2794a065aaa9Szhanghailiang } 2795a065aaa9Szhanghailiang 2796a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2797a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2798a065aaa9Szhanghailiang { 2799c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2800a065aaa9Szhanghailiang return NULL; 2801a065aaa9Szhanghailiang } 2802a065aaa9Szhanghailiang 2803a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2804a065aaa9Szhanghailiang { 2805c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2806a065aaa9Szhanghailiang return NULL; 2807a065aaa9Szhanghailiang } 2808a065aaa9Szhanghailiang 2809e72c3f2eSMichael Roth #endif 2810e72c3f2eSMichael Roth 281159e35c7bSAndrew Deason #ifdef HAVE_GETIFADDRS 281259e35c7bSAndrew Deason static GuestNetworkInterface * 281359e35c7bSAndrew Deason guest_find_interface(GuestNetworkInterfaceList *head, 281459e35c7bSAndrew Deason const char *name) 281559e35c7bSAndrew Deason { 281659e35c7bSAndrew Deason for (; head; head = head->next) { 281759e35c7bSAndrew Deason if (strcmp(head->value->name, name) == 0) { 281859e35c7bSAndrew Deason return head->value; 281959e35c7bSAndrew Deason } 282059e35c7bSAndrew Deason } 282159e35c7bSAndrew Deason 282259e35c7bSAndrew Deason return NULL; 282359e35c7bSAndrew Deason } 282459e35c7bSAndrew Deason 282559e35c7bSAndrew Deason static int guest_get_network_stats(const char *name, 282659e35c7bSAndrew Deason GuestNetworkInterfaceStat *stats) 282759e35c7bSAndrew Deason { 282870335c46SAndrew Deason #ifdef CONFIG_LINUX 282959e35c7bSAndrew Deason int name_len; 283059e35c7bSAndrew Deason char const *devinfo = "/proc/net/dev"; 283159e35c7bSAndrew Deason FILE *fp; 283259e35c7bSAndrew Deason char *line = NULL, *colon; 283359e35c7bSAndrew Deason size_t n = 0; 283459e35c7bSAndrew Deason fp = fopen(devinfo, "r"); 283559e35c7bSAndrew Deason if (!fp) { 2836a539dc8aSAndrew Deason g_debug("failed to open network stats %s: %s", devinfo, 2837a539dc8aSAndrew Deason g_strerror(errno)); 283859e35c7bSAndrew Deason return -1; 283959e35c7bSAndrew Deason } 284059e35c7bSAndrew Deason name_len = strlen(name); 284159e35c7bSAndrew Deason while (getline(&line, &n, fp) != -1) { 284259e35c7bSAndrew Deason long long dummy; 284359e35c7bSAndrew Deason long long rx_bytes; 284459e35c7bSAndrew Deason long long rx_packets; 284559e35c7bSAndrew Deason long long rx_errs; 284659e35c7bSAndrew Deason long long rx_dropped; 284759e35c7bSAndrew Deason long long tx_bytes; 284859e35c7bSAndrew Deason long long tx_packets; 284959e35c7bSAndrew Deason long long tx_errs; 285059e35c7bSAndrew Deason long long tx_dropped; 285159e35c7bSAndrew Deason char *trim_line; 285259e35c7bSAndrew Deason trim_line = g_strchug(line); 285359e35c7bSAndrew Deason if (trim_line[0] == '\0') { 285459e35c7bSAndrew Deason continue; 285559e35c7bSAndrew Deason } 285659e35c7bSAndrew Deason colon = strchr(trim_line, ':'); 285759e35c7bSAndrew Deason if (!colon) { 285859e35c7bSAndrew Deason continue; 285959e35c7bSAndrew Deason } 286059e35c7bSAndrew Deason if (colon - name_len == trim_line && 286159e35c7bSAndrew Deason strncmp(trim_line, name, name_len) == 0) { 286259e35c7bSAndrew Deason if (sscanf(colon + 1, 286359e35c7bSAndrew Deason "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld", 286459e35c7bSAndrew Deason &rx_bytes, &rx_packets, &rx_errs, &rx_dropped, 286559e35c7bSAndrew Deason &dummy, &dummy, &dummy, &dummy, 286659e35c7bSAndrew Deason &tx_bytes, &tx_packets, &tx_errs, &tx_dropped, 286759e35c7bSAndrew Deason &dummy, &dummy, &dummy, &dummy) != 16) { 286859e35c7bSAndrew Deason continue; 286959e35c7bSAndrew Deason } 287059e35c7bSAndrew Deason stats->rx_bytes = rx_bytes; 287159e35c7bSAndrew Deason stats->rx_packets = rx_packets; 287259e35c7bSAndrew Deason stats->rx_errs = rx_errs; 287359e35c7bSAndrew Deason stats->rx_dropped = rx_dropped; 287459e35c7bSAndrew Deason stats->tx_bytes = tx_bytes; 287559e35c7bSAndrew Deason stats->tx_packets = tx_packets; 287659e35c7bSAndrew Deason stats->tx_errs = tx_errs; 287759e35c7bSAndrew Deason stats->tx_dropped = tx_dropped; 287859e35c7bSAndrew Deason fclose(fp); 287959e35c7bSAndrew Deason g_free(line); 288059e35c7bSAndrew Deason return 0; 288159e35c7bSAndrew Deason } 288259e35c7bSAndrew Deason } 288359e35c7bSAndrew Deason fclose(fp); 288459e35c7bSAndrew Deason g_free(line); 288559e35c7bSAndrew Deason g_debug("/proc/net/dev: Interface '%s' not found", name); 2886a539dc8aSAndrew Deason #else /* !CONFIG_LINUX */ 2887a539dc8aSAndrew Deason g_debug("Network stats reporting available only for Linux"); 2888a539dc8aSAndrew Deason #endif /* !CONFIG_LINUX */ 288959e35c7bSAndrew Deason return -1; 289059e35c7bSAndrew Deason } 289159e35c7bSAndrew Deason 289259e35c7bSAndrew Deason /* 289359e35c7bSAndrew Deason * Build information about guest interfaces 289459e35c7bSAndrew Deason */ 289559e35c7bSAndrew Deason GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 289659e35c7bSAndrew Deason { 289759e35c7bSAndrew Deason GuestNetworkInterfaceList *head = NULL, **tail = &head; 289859e35c7bSAndrew Deason struct ifaddrs *ifap, *ifa; 289959e35c7bSAndrew Deason 290059e35c7bSAndrew Deason if (getifaddrs(&ifap) < 0) { 290159e35c7bSAndrew Deason error_setg_errno(errp, errno, "getifaddrs failed"); 290259e35c7bSAndrew Deason goto error; 290359e35c7bSAndrew Deason } 290459e35c7bSAndrew Deason 290559e35c7bSAndrew Deason for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 290659e35c7bSAndrew Deason GuestNetworkInterface *info; 290759e35c7bSAndrew Deason GuestIpAddressList **address_tail; 290859e35c7bSAndrew Deason GuestIpAddress *address_item = NULL; 290959e35c7bSAndrew Deason GuestNetworkInterfaceStat *interface_stat = NULL; 291059e35c7bSAndrew Deason char addr4[INET_ADDRSTRLEN]; 291159e35c7bSAndrew Deason char addr6[INET6_ADDRSTRLEN]; 291259e35c7bSAndrew Deason int sock; 291359e35c7bSAndrew Deason struct ifreq ifr; 291459e35c7bSAndrew Deason unsigned char *mac_addr; 291559e35c7bSAndrew Deason void *p; 291659e35c7bSAndrew Deason 291759e35c7bSAndrew Deason g_debug("Processing %s interface", ifa->ifa_name); 291859e35c7bSAndrew Deason 291959e35c7bSAndrew Deason info = guest_find_interface(head, ifa->ifa_name); 292059e35c7bSAndrew Deason 292159e35c7bSAndrew Deason if (!info) { 292259e35c7bSAndrew Deason info = g_malloc0(sizeof(*info)); 292359e35c7bSAndrew Deason info->name = g_strdup(ifa->ifa_name); 292459e35c7bSAndrew Deason 292559e35c7bSAndrew Deason QAPI_LIST_APPEND(tail, info); 292659e35c7bSAndrew Deason } 292759e35c7bSAndrew Deason 2928aec0730eSAndrew Deason if (!info->has_hardware_address) { 292959e35c7bSAndrew Deason /* we haven't obtained HW address yet */ 293059e35c7bSAndrew Deason sock = socket(PF_INET, SOCK_STREAM, 0); 293159e35c7bSAndrew Deason if (sock == -1) { 293259e35c7bSAndrew Deason error_setg_errno(errp, errno, "failed to create socket"); 293359e35c7bSAndrew Deason goto error; 293459e35c7bSAndrew Deason } 293559e35c7bSAndrew Deason 293659e35c7bSAndrew Deason memset(&ifr, 0, sizeof(ifr)); 293759e35c7bSAndrew Deason pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->name); 293859e35c7bSAndrew Deason if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) { 2939aec0730eSAndrew Deason /* 2940aec0730eSAndrew Deason * We can't get the hw addr of this interface, but that's not a 2941aec0730eSAndrew Deason * fatal error. Don't set info->hardware_address, but keep 2942aec0730eSAndrew Deason * going. 2943aec0730eSAndrew Deason */ 2944aec0730eSAndrew Deason if (errno == EADDRNOTAVAIL) { 2945aec0730eSAndrew Deason /* The interface doesn't have a hw addr (e.g. loopback). */ 2946aec0730eSAndrew Deason g_debug("failed to get MAC address of %s: %s", 2947aec0730eSAndrew Deason ifa->ifa_name, strerror(errno)); 2948aec0730eSAndrew Deason } else{ 2949aec0730eSAndrew Deason g_warning("failed to get MAC address of %s: %s", 2950aec0730eSAndrew Deason ifa->ifa_name, strerror(errno)); 295159e35c7bSAndrew Deason } 295259e35c7bSAndrew Deason 2953aec0730eSAndrew Deason } else { 295470335c46SAndrew Deason #ifdef CONFIG_SOLARIS 295570335c46SAndrew Deason mac_addr = (unsigned char *) &ifr.ifr_addr.sa_data; 295670335c46SAndrew Deason #else 295759e35c7bSAndrew Deason mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data; 295870335c46SAndrew Deason #endif 295959e35c7bSAndrew Deason info->hardware_address = 296059e35c7bSAndrew Deason g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 296159e35c7bSAndrew Deason (int) mac_addr[0], (int) mac_addr[1], 296259e35c7bSAndrew Deason (int) mac_addr[2], (int) mac_addr[3], 296359e35c7bSAndrew Deason (int) mac_addr[4], (int) mac_addr[5]); 296459e35c7bSAndrew Deason 296559e35c7bSAndrew Deason info->has_hardware_address = true; 296659e35c7bSAndrew Deason } 2967aec0730eSAndrew Deason close(sock); 2968aec0730eSAndrew Deason } 296959e35c7bSAndrew Deason 297059e35c7bSAndrew Deason if (ifa->ifa_addr && 297159e35c7bSAndrew Deason ifa->ifa_addr->sa_family == AF_INET) { 297259e35c7bSAndrew Deason /* interface with IPv4 address */ 297359e35c7bSAndrew Deason p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; 297459e35c7bSAndrew Deason if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) { 297559e35c7bSAndrew Deason error_setg_errno(errp, errno, "inet_ntop failed"); 297659e35c7bSAndrew Deason goto error; 297759e35c7bSAndrew Deason } 297859e35c7bSAndrew Deason 297959e35c7bSAndrew Deason address_item = g_malloc0(sizeof(*address_item)); 298059e35c7bSAndrew Deason address_item->ip_address = g_strdup(addr4); 298159e35c7bSAndrew Deason address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 298259e35c7bSAndrew Deason 298359e35c7bSAndrew Deason if (ifa->ifa_netmask) { 298459e35c7bSAndrew Deason /* Count the number of set bits in netmask. 298559e35c7bSAndrew Deason * This is safe as '1' and '0' cannot be shuffled in netmask. */ 298659e35c7bSAndrew Deason p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr; 298759e35c7bSAndrew Deason address_item->prefix = ctpop32(((uint32_t *) p)[0]); 298859e35c7bSAndrew Deason } 298959e35c7bSAndrew Deason } else if (ifa->ifa_addr && 299059e35c7bSAndrew Deason ifa->ifa_addr->sa_family == AF_INET6) { 299159e35c7bSAndrew Deason /* interface with IPv6 address */ 299259e35c7bSAndrew Deason p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; 299359e35c7bSAndrew Deason if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) { 299459e35c7bSAndrew Deason error_setg_errno(errp, errno, "inet_ntop failed"); 299559e35c7bSAndrew Deason goto error; 299659e35c7bSAndrew Deason } 299759e35c7bSAndrew Deason 299859e35c7bSAndrew Deason address_item = g_malloc0(sizeof(*address_item)); 299959e35c7bSAndrew Deason address_item->ip_address = g_strdup(addr6); 300059e35c7bSAndrew Deason address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 300159e35c7bSAndrew Deason 300259e35c7bSAndrew Deason if (ifa->ifa_netmask) { 300359e35c7bSAndrew Deason /* Count the number of set bits in netmask. 300459e35c7bSAndrew Deason * This is safe as '1' and '0' cannot be shuffled in netmask. */ 300559e35c7bSAndrew Deason p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; 300659e35c7bSAndrew Deason address_item->prefix = 300759e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[0]) + 300859e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[1]) + 300959e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[2]) + 301059e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[3]); 301159e35c7bSAndrew Deason } 301259e35c7bSAndrew Deason } 301359e35c7bSAndrew Deason 301459e35c7bSAndrew Deason if (!address_item) { 301559e35c7bSAndrew Deason continue; 301659e35c7bSAndrew Deason } 301759e35c7bSAndrew Deason 301859e35c7bSAndrew Deason address_tail = &info->ip_addresses; 301959e35c7bSAndrew Deason while (*address_tail) { 302059e35c7bSAndrew Deason address_tail = &(*address_tail)->next; 302159e35c7bSAndrew Deason } 302259e35c7bSAndrew Deason QAPI_LIST_APPEND(address_tail, address_item); 302359e35c7bSAndrew Deason 302459e35c7bSAndrew Deason info->has_ip_addresses = true; 302559e35c7bSAndrew Deason 302659e35c7bSAndrew Deason if (!info->has_statistics) { 302759e35c7bSAndrew Deason interface_stat = g_malloc0(sizeof(*interface_stat)); 302859e35c7bSAndrew Deason if (guest_get_network_stats(info->name, interface_stat) == -1) { 302959e35c7bSAndrew Deason info->has_statistics = false; 303059e35c7bSAndrew Deason g_free(interface_stat); 303159e35c7bSAndrew Deason } else { 303259e35c7bSAndrew Deason info->statistics = interface_stat; 303359e35c7bSAndrew Deason info->has_statistics = true; 303459e35c7bSAndrew Deason } 303559e35c7bSAndrew Deason } 303659e35c7bSAndrew Deason } 303759e35c7bSAndrew Deason 303859e35c7bSAndrew Deason freeifaddrs(ifap); 303959e35c7bSAndrew Deason return head; 304059e35c7bSAndrew Deason 304159e35c7bSAndrew Deason error: 304259e35c7bSAndrew Deason freeifaddrs(ifap); 304359e35c7bSAndrew Deason qapi_free_GuestNetworkInterfaceList(head); 304459e35c7bSAndrew Deason return NULL; 304559e35c7bSAndrew Deason } 304659e35c7bSAndrew Deason 304759e35c7bSAndrew Deason #else 304859e35c7bSAndrew Deason 304959e35c7bSAndrew Deason GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 305059e35c7bSAndrew Deason { 305159e35c7bSAndrew Deason error_setg(errp, QERR_UNSUPPORTED); 305259e35c7bSAndrew Deason return NULL; 305359e35c7bSAndrew Deason } 305459e35c7bSAndrew Deason 305559e35c7bSAndrew Deason #endif /* HAVE_GETIFADDRS */ 305659e35c7bSAndrew Deason 3057d35d4cb5SMichael Roth #if !defined(CONFIG_FSFREEZE) 3058d35d4cb5SMichael Roth 305946d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 306046d4c572STomoki Sekiyama { 3061c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 306246d4c572STomoki Sekiyama return NULL; 306346d4c572STomoki Sekiyama } 306446d4c572STomoki Sekiyama 306577dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 3066d35d4cb5SMichael Roth { 3067c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3068d35d4cb5SMichael Roth 3069d35d4cb5SMichael Roth return 0; 3070d35d4cb5SMichael Roth } 3071d35d4cb5SMichael Roth 307277dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_freeze(Error **errp) 3073d35d4cb5SMichael Roth { 3074c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3075d35d4cb5SMichael Roth 3076d35d4cb5SMichael Roth return 0; 3077d35d4cb5SMichael Roth } 3078d35d4cb5SMichael Roth 3079e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 3080e99bce20STomoki Sekiyama strList *mountpoints, 3081e99bce20STomoki Sekiyama Error **errp) 3082e99bce20STomoki Sekiyama { 3083c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3084e99bce20STomoki Sekiyama 3085e99bce20STomoki Sekiyama return 0; 3086e99bce20STomoki Sekiyama } 3087e99bce20STomoki Sekiyama 308877dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 3089d35d4cb5SMichael Roth { 3090c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3091d35d4cb5SMichael Roth 3092d35d4cb5SMichael Roth return 0; 3093d35d4cb5SMichael Roth } 3094fed39564STomáš Golembiovský 3095fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 3096fed39564STomáš Golembiovský { 3097fed39564STomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 3098fed39564STomáš Golembiovský return NULL; 3099fed39564STomáš Golembiovský } 3100fed39564STomáš Golembiovský 31013569664eSluzhipeng GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 31023569664eSluzhipeng { 31033569664eSluzhipeng error_setg(errp, QERR_UNSUPPORTED); 31043569664eSluzhipeng return NULL; 31053569664eSluzhipeng } 31063569664eSluzhipeng 31071db8a0b0Szhenwei pi GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 31081db8a0b0Szhenwei pi { 31091db8a0b0Szhenwei pi error_setg(errp, QERR_UNSUPPORTED); 31101db8a0b0Szhenwei pi return NULL; 31111db8a0b0Szhenwei pi } 31123569664eSluzhipeng 3113eab5fd59SPaolo Bonzini #endif /* CONFIG_FSFREEZE */ 3114d35d4cb5SMichael Roth 3115eab5fd59SPaolo Bonzini #if !defined(CONFIG_FSTRIM) 3116e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 3117e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 3118eab5fd59SPaolo Bonzini { 3119c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3120e82855d9SJustin Ossevoort return NULL; 3121eab5fd59SPaolo Bonzini } 3122d35d4cb5SMichael Roth #endif 3123d35d4cb5SMichael Roth 31240e4ef702SThomas Huth /* add unsupported commands to the list of blocked RPCs */ 31250e4ef702SThomas Huth GList *ga_command_init_blockedrpcs(GList *blockedrpcs) 31261281c08aSTomoki Sekiyama { 31271281c08aSTomoki Sekiyama #if !defined(__linux__) 31281281c08aSTomoki Sekiyama { 31291281c08aSTomoki Sekiyama const char *list[] = { 31301281c08aSTomoki Sekiyama "guest-suspend-disk", "guest-suspend-ram", 313159e35c7bSAndrew Deason "guest-suspend-hybrid", "guest-get-vcpus", "guest-set-vcpus", 31320dd38a03Szhanghailiang "guest-get-memory-blocks", "guest-set-memory-blocks", 313328d8dd35SBasil Salman "guest-get-memory-block-size", "guest-get-memory-block-info", 313428d8dd35SBasil Salman NULL}; 31351281c08aSTomoki Sekiyama char **p = (char **)list; 31361281c08aSTomoki Sekiyama 31371281c08aSTomoki Sekiyama while (*p) { 31380e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 31391281c08aSTomoki Sekiyama } 31401281c08aSTomoki Sekiyama } 31411281c08aSTomoki Sekiyama #endif 31421281c08aSTomoki Sekiyama 314359e35c7bSAndrew Deason #if !defined(HAVE_GETIFADDRS) 31440e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, 314559e35c7bSAndrew Deason g_strdup("guest-network-get-interfaces")); 314659e35c7bSAndrew Deason #endif 314759e35c7bSAndrew Deason 31481281c08aSTomoki Sekiyama #if !defined(CONFIG_FSFREEZE) 31491281c08aSTomoki Sekiyama { 31501281c08aSTomoki Sekiyama const char *list[] = { 31511281c08aSTomoki Sekiyama "guest-get-fsinfo", "guest-fsfreeze-status", 31521281c08aSTomoki Sekiyama "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", 3153fed39564STomáš Golembiovský "guest-fsfreeze-thaw", "guest-get-fsinfo", 3154fed39564STomáš Golembiovský "guest-get-disks", NULL}; 31551281c08aSTomoki Sekiyama char **p = (char **)list; 31561281c08aSTomoki Sekiyama 31571281c08aSTomoki Sekiyama while (*p) { 31580e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 31591281c08aSTomoki Sekiyama } 31601281c08aSTomoki Sekiyama } 31611281c08aSTomoki Sekiyama #endif 31621281c08aSTomoki Sekiyama 31631281c08aSTomoki Sekiyama #if !defined(CONFIG_FSTRIM) 31640e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-fstrim")); 31651281c08aSTomoki Sekiyama #endif 31661281c08aSTomoki Sekiyama 31670e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-get-devices")); 31682e4211ceSTomáš Golembiovský 31690e4ef702SThomas Huth return blockedrpcs; 31701281c08aSTomoki Sekiyama } 31711281c08aSTomoki Sekiyama 3172c216e5adSMichael Roth /* register init/cleanup routines for stateful command groups */ 3173c216e5adSMichael Roth void ga_command_state_init(GAState *s, GACommandState *cs) 3174c216e5adSMichael Roth { 3175c216e5adSMichael Roth #if defined(CONFIG_FSFREEZE) 3176f22d85e9SMichael Roth ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 3177c216e5adSMichael Roth #endif 3178c216e5adSMichael Roth } 3179161a56a9SVinzenz Feenstra 3180e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 3181e674605fSTomáš Golembiovský 3182161a56a9SVinzenz Feenstra #define QGA_MICRO_SECOND_TO_SECOND 1000000 3183161a56a9SVinzenz Feenstra 3184161a56a9SVinzenz Feenstra static double ga_get_login_time(struct utmpx *user_info) 3185161a56a9SVinzenz Feenstra { 3186161a56a9SVinzenz Feenstra double seconds = (double)user_info->ut_tv.tv_sec; 3187161a56a9SVinzenz Feenstra double useconds = (double)user_info->ut_tv.tv_usec; 3188161a56a9SVinzenz Feenstra useconds /= QGA_MICRO_SECOND_TO_SECOND; 3189161a56a9SVinzenz Feenstra return seconds + useconds; 3190161a56a9SVinzenz Feenstra } 3191161a56a9SVinzenz Feenstra 3192b90abbacSVladimir Sementsov-Ogievskiy GuestUserList *qmp_guest_get_users(Error **errp) 3193161a56a9SVinzenz Feenstra { 3194161a56a9SVinzenz Feenstra GHashTable *cache = NULL; 319595b3a8c8SEric Blake GuestUserList *head = NULL, **tail = &head; 3196161a56a9SVinzenz Feenstra struct utmpx *user_info = NULL; 3197161a56a9SVinzenz Feenstra gpointer value = NULL; 3198161a56a9SVinzenz Feenstra GuestUser *user = NULL; 3199161a56a9SVinzenz Feenstra double login_time = 0; 3200161a56a9SVinzenz Feenstra 3201161a56a9SVinzenz Feenstra cache = g_hash_table_new(g_str_hash, g_str_equal); 3202161a56a9SVinzenz Feenstra setutxent(); 3203161a56a9SVinzenz Feenstra 3204161a56a9SVinzenz Feenstra for (;;) { 3205161a56a9SVinzenz Feenstra user_info = getutxent(); 3206161a56a9SVinzenz Feenstra if (user_info == NULL) { 3207161a56a9SVinzenz Feenstra break; 3208161a56a9SVinzenz Feenstra } else if (user_info->ut_type != USER_PROCESS) { 3209161a56a9SVinzenz Feenstra continue; 3210161a56a9SVinzenz Feenstra } else if (g_hash_table_contains(cache, user_info->ut_user)) { 3211161a56a9SVinzenz Feenstra value = g_hash_table_lookup(cache, user_info->ut_user); 3212161a56a9SVinzenz Feenstra user = (GuestUser *)value; 3213161a56a9SVinzenz Feenstra login_time = ga_get_login_time(user_info); 3214161a56a9SVinzenz Feenstra /* We're ensuring the earliest login time to be sent */ 3215161a56a9SVinzenz Feenstra if (login_time < user->login_time) { 3216161a56a9SVinzenz Feenstra user->login_time = login_time; 3217161a56a9SVinzenz Feenstra } 3218161a56a9SVinzenz Feenstra continue; 3219161a56a9SVinzenz Feenstra } 3220161a56a9SVinzenz Feenstra 322195b3a8c8SEric Blake user = g_new0(GuestUser, 1); 322295b3a8c8SEric Blake user->user = g_strdup(user_info->ut_user); 322395b3a8c8SEric Blake user->login_time = ga_get_login_time(user_info); 3224161a56a9SVinzenz Feenstra 322595b3a8c8SEric Blake g_hash_table_insert(cache, user->user, user); 3226161a56a9SVinzenz Feenstra 322795b3a8c8SEric Blake QAPI_LIST_APPEND(tail, user); 3228161a56a9SVinzenz Feenstra } 3229161a56a9SVinzenz Feenstra endutxent(); 3230161a56a9SVinzenz Feenstra g_hash_table_destroy(cache); 3231161a56a9SVinzenz Feenstra return head; 3232161a56a9SVinzenz Feenstra } 3233e674605fSTomáš Golembiovský 3234e674605fSTomáš Golembiovský #else 3235e674605fSTomáš Golembiovský 3236e674605fSTomáš Golembiovský GuestUserList *qmp_guest_get_users(Error **errp) 3237e674605fSTomáš Golembiovský { 3238e674605fSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 3239e674605fSTomáš Golembiovský return NULL; 3240e674605fSTomáš Golembiovský } 3241e674605fSTomáš Golembiovský 3242e674605fSTomáš Golembiovský #endif 32439848f797STomáš Golembiovský 32449848f797STomáš Golembiovský /* Replace escaped special characters with theire real values. The replacement 32459848f797STomáš Golembiovský * is done in place -- returned value is in the original string. 32469848f797STomáš Golembiovský */ 32479848f797STomáš Golembiovský static void ga_osrelease_replace_special(gchar *value) 32489848f797STomáš Golembiovský { 32499848f797STomáš Golembiovský gchar *p, *p2, quote; 32509848f797STomáš Golembiovský 32519848f797STomáš Golembiovský /* Trim the string at first space or semicolon if it is not enclosed in 32529848f797STomáš Golembiovský * single or double quotes. */ 32539848f797STomáš Golembiovský if ((value[0] != '"') || (value[0] == '\'')) { 32549848f797STomáš Golembiovský p = strchr(value, ' '); 32559848f797STomáš Golembiovský if (p != NULL) { 32569848f797STomáš Golembiovský *p = 0; 32579848f797STomáš Golembiovský } 32589848f797STomáš Golembiovský p = strchr(value, ';'); 32599848f797STomáš Golembiovský if (p != NULL) { 32609848f797STomáš Golembiovský *p = 0; 32619848f797STomáš Golembiovský } 32629848f797STomáš Golembiovský return; 32639848f797STomáš Golembiovský } 32649848f797STomáš Golembiovský 32659848f797STomáš Golembiovský quote = value[0]; 32669848f797STomáš Golembiovský p2 = value; 32679848f797STomáš Golembiovský p = value + 1; 32689848f797STomáš Golembiovský while (*p != 0) { 32699848f797STomáš Golembiovský if (*p == '\\') { 32709848f797STomáš Golembiovský p++; 32719848f797STomáš Golembiovský switch (*p) { 32729848f797STomáš Golembiovský case '$': 32739848f797STomáš Golembiovský case '\'': 32749848f797STomáš Golembiovský case '"': 32759848f797STomáš Golembiovský case '\\': 32769848f797STomáš Golembiovský case '`': 32779848f797STomáš Golembiovský break; 32789848f797STomáš Golembiovský default: 32799848f797STomáš Golembiovský /* Keep literal backslash followed by whatever is there */ 32809848f797STomáš Golembiovský p--; 32819848f797STomáš Golembiovský break; 32829848f797STomáš Golembiovský } 32839848f797STomáš Golembiovský } else if (*p == quote) { 32849848f797STomáš Golembiovský *p2 = 0; 32859848f797STomáš Golembiovský break; 32869848f797STomáš Golembiovský } 32879848f797STomáš Golembiovský *(p2++) = *(p++); 32889848f797STomáš Golembiovský } 32899848f797STomáš Golembiovský } 32909848f797STomáš Golembiovský 32919848f797STomáš Golembiovský static GKeyFile *ga_parse_osrelease(const char *fname) 32929848f797STomáš Golembiovský { 32939848f797STomáš Golembiovský gchar *content = NULL; 32949848f797STomáš Golembiovský gchar *content2 = NULL; 32959848f797STomáš Golembiovský GError *err = NULL; 32969848f797STomáš Golembiovský GKeyFile *keys = g_key_file_new(); 32979848f797STomáš Golembiovský const char *group = "[os-release]\n"; 32989848f797STomáš Golembiovský 32999848f797STomáš Golembiovský if (!g_file_get_contents(fname, &content, NULL, &err)) { 33009848f797STomáš Golembiovský slog("failed to read '%s', error: %s", fname, err->message); 33019848f797STomáš Golembiovský goto fail; 33029848f797STomáš Golembiovský } 33039848f797STomáš Golembiovský 33049848f797STomáš Golembiovský if (!g_utf8_validate(content, -1, NULL)) { 33059848f797STomáš Golembiovský slog("file is not utf-8 encoded: %s", fname); 33069848f797STomáš Golembiovský goto fail; 33079848f797STomáš Golembiovský } 33089848f797STomáš Golembiovský content2 = g_strdup_printf("%s%s", group, content); 33099848f797STomáš Golembiovský 33109848f797STomáš Golembiovský if (!g_key_file_load_from_data(keys, content2, -1, G_KEY_FILE_NONE, 33119848f797STomáš Golembiovský &err)) { 33129848f797STomáš Golembiovský slog("failed to parse file '%s', error: %s", fname, err->message); 33139848f797STomáš Golembiovský goto fail; 33149848f797STomáš Golembiovský } 33159848f797STomáš Golembiovský 33169848f797STomáš Golembiovský g_free(content); 33179848f797STomáš Golembiovský g_free(content2); 33189848f797STomáš Golembiovský return keys; 33199848f797STomáš Golembiovský 33209848f797STomáš Golembiovský fail: 33219848f797STomáš Golembiovský g_error_free(err); 33229848f797STomáš Golembiovský g_free(content); 33239848f797STomáš Golembiovský g_free(content2); 33249848f797STomáš Golembiovský g_key_file_free(keys); 33259848f797STomáš Golembiovský return NULL; 33269848f797STomáš Golembiovský } 33279848f797STomáš Golembiovský 33289848f797STomáš Golembiovský GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 33299848f797STomáš Golembiovský { 33309848f797STomáš Golembiovský GuestOSInfo *info = NULL; 33319848f797STomáš Golembiovský struct utsname kinfo; 3332339ca68bSTomáš Golembiovský GKeyFile *osrelease = NULL; 3333339ca68bSTomáš Golembiovský const char *qga_os_release = g_getenv("QGA_OS_RELEASE"); 33349848f797STomáš Golembiovský 33359848f797STomáš Golembiovský info = g_new0(GuestOSInfo, 1); 33369848f797STomáš Golembiovský 33379848f797STomáš Golembiovský if (uname(&kinfo) != 0) { 33389848f797STomáš Golembiovský error_setg_errno(errp, errno, "uname failed"); 33399848f797STomáš Golembiovský } else { 33409848f797STomáš Golembiovský info->has_kernel_version = true; 33419848f797STomáš Golembiovský info->kernel_version = g_strdup(kinfo.version); 33429848f797STomáš Golembiovský info->has_kernel_release = true; 33439848f797STomáš Golembiovský info->kernel_release = g_strdup(kinfo.release); 33449848f797STomáš Golembiovský info->has_machine = true; 33459848f797STomáš Golembiovský info->machine = g_strdup(kinfo.machine); 33469848f797STomáš Golembiovský } 33479848f797STomáš Golembiovský 3348339ca68bSTomáš Golembiovský if (qga_os_release != NULL) { 3349339ca68bSTomáš Golembiovský osrelease = ga_parse_osrelease(qga_os_release); 3350339ca68bSTomáš Golembiovský } else { 33519848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/etc/os-release"); 33529848f797STomáš Golembiovský if (osrelease == NULL) { 33539848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/usr/lib/os-release"); 33549848f797STomáš Golembiovský } 3355339ca68bSTomáš Golembiovský } 33569848f797STomáš Golembiovský 33579848f797STomáš Golembiovský if (osrelease != NULL) { 33589848f797STomáš Golembiovský char *value; 33599848f797STomáš Golembiovský 33609848f797STomáš Golembiovský #define GET_FIELD(field, osfield) do { \ 33619848f797STomáš Golembiovský value = g_key_file_get_value(osrelease, "os-release", osfield, NULL); \ 33629848f797STomáš Golembiovský if (value != NULL) { \ 33639848f797STomáš Golembiovský ga_osrelease_replace_special(value); \ 33649848f797STomáš Golembiovský info->has_ ## field = true; \ 33659848f797STomáš Golembiovský info->field = value; \ 33669848f797STomáš Golembiovský } \ 33679848f797STomáš Golembiovský } while (0) 33689848f797STomáš Golembiovský GET_FIELD(id, "ID"); 33699848f797STomáš Golembiovský GET_FIELD(name, "NAME"); 33709848f797STomáš Golembiovský GET_FIELD(pretty_name, "PRETTY_NAME"); 33719848f797STomáš Golembiovský GET_FIELD(version, "VERSION"); 33729848f797STomáš Golembiovský GET_FIELD(version_id, "VERSION_ID"); 33739848f797STomáš Golembiovský GET_FIELD(variant, "VARIANT"); 33749848f797STomáš Golembiovský GET_FIELD(variant_id, "VARIANT_ID"); 33759848f797STomáš Golembiovský #undef GET_FIELD 33769848f797STomáš Golembiovský 33779848f797STomáš Golembiovský g_key_file_free(osrelease); 33789848f797STomáš Golembiovský } 33799848f797STomáš Golembiovský 33809848f797STomáš Golembiovský return info; 33819848f797STomáš Golembiovský } 33822e4211ceSTomáš Golembiovský 33832e4211ceSTomáš Golembiovský GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 33842e4211ceSTomáš Golembiovský { 33852e4211ceSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 33862e4211ceSTomáš Golembiovský 33872e4211ceSTomáš Golembiovský return NULL; 33882e4211ceSTomáš Golembiovský } 3389548fb0daSMarc-André Lureau 3390548fb0daSMarc-André Lureau #ifndef HOST_NAME_MAX 3391548fb0daSMarc-André Lureau # ifdef _POSIX_HOST_NAME_MAX 3392548fb0daSMarc-André Lureau # define HOST_NAME_MAX _POSIX_HOST_NAME_MAX 3393548fb0daSMarc-André Lureau # else 3394548fb0daSMarc-André Lureau # define HOST_NAME_MAX 255 3395548fb0daSMarc-André Lureau # endif 3396548fb0daSMarc-André Lureau #endif 3397548fb0daSMarc-André Lureau 3398548fb0daSMarc-André Lureau char *qga_get_host_name(Error **errp) 3399548fb0daSMarc-André Lureau { 3400548fb0daSMarc-André Lureau long len = -1; 3401548fb0daSMarc-André Lureau g_autofree char *hostname = NULL; 3402548fb0daSMarc-André Lureau 3403548fb0daSMarc-André Lureau #ifdef _SC_HOST_NAME_MAX 3404548fb0daSMarc-André Lureau len = sysconf(_SC_HOST_NAME_MAX); 3405548fb0daSMarc-André Lureau #endif /* _SC_HOST_NAME_MAX */ 3406548fb0daSMarc-André Lureau 3407548fb0daSMarc-André Lureau if (len < 0) { 3408548fb0daSMarc-André Lureau len = HOST_NAME_MAX; 3409548fb0daSMarc-André Lureau } 3410548fb0daSMarc-André Lureau 3411548fb0daSMarc-André Lureau /* Unfortunately, gethostname() below does not guarantee a 3412548fb0daSMarc-André Lureau * NULL terminated string. Therefore, allocate one byte more 3413548fb0daSMarc-André Lureau * to be sure. */ 3414548fb0daSMarc-André Lureau hostname = g_new0(char, len + 1); 3415548fb0daSMarc-André Lureau 3416548fb0daSMarc-André Lureau if (gethostname(hostname, len) < 0) { 3417548fb0daSMarc-André Lureau error_setg_errno(errp, errno, 3418548fb0daSMarc-André Lureau "cannot get hostname"); 3419548fb0daSMarc-André Lureau return NULL; 3420548fb0daSMarc-André Lureau } 3421548fb0daSMarc-André Lureau 3422548fb0daSMarc-André Lureau return g_steal_pointer(&hostname); 3423548fb0daSMarc-André Lureau } 3424