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 4459e35c7bSAndrew Deason #ifdef HAVE_GETIFADDRS 4559e35c7bSAndrew Deason #include <arpa/inet.h> 4659e35c7bSAndrew Deason #include <sys/socket.h> 4759e35c7bSAndrew Deason #include <net/if.h> 4828236ad8SBrad Smith #if defined(__NetBSD__) || defined(__OpenBSD__) 4928236ad8SBrad Smith #include <net/if_arp.h> 5028236ad8SBrad Smith #include <netinet/if_ether.h> 5128236ad8SBrad Smith #else 52a1241094SAlexander Ivanov #include <net/ethernet.h> 5328236ad8SBrad Smith #endif 5459e35c7bSAndrew Deason #ifdef CONFIG_SOLARIS 5559e35c7bSAndrew Deason #include <sys/sockio.h> 5659e35c7bSAndrew Deason #endif 5759e35c7bSAndrew Deason #endif 5859e35c7bSAndrew Deason 5977dbc81bSMarkus Armbruster static void ga_wait_child(pid_t pid, int *status, Error **errp) 60d220a6dfSLuiz Capitulino { 61d220a6dfSLuiz Capitulino pid_t rpid; 62d220a6dfSLuiz Capitulino 63d220a6dfSLuiz Capitulino *status = 0; 64d220a6dfSLuiz Capitulino 6537b0b24eSNikita Ivanov rpid = RETRY_ON_EINTR(waitpid(pid, status, 0)); 66d220a6dfSLuiz Capitulino 67d220a6dfSLuiz Capitulino if (rpid == -1) { 6877dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to wait for child (pid: %d)", 6977dbc81bSMarkus Armbruster pid); 70d220a6dfSLuiz Capitulino return; 71d220a6dfSLuiz Capitulino } 72d220a6dfSLuiz Capitulino 73d220a6dfSLuiz Capitulino g_assert(rpid == pid); 74d220a6dfSLuiz Capitulino } 75d220a6dfSLuiz Capitulino 7691eab32aSMarkus Armbruster void qmp_guest_shutdown(const char *mode, Error **errp) 77c216e5adSMichael Roth { 78c216e5adSMichael Roth const char *shutdown_flag; 79d220a6dfSLuiz Capitulino Error *local_err = NULL; 80d220a6dfSLuiz Capitulino pid_t pid; 813674838cSLuiz Capitulino int status; 82c216e5adSMichael Roth 83c8ec041dSAndrew Deason #ifdef CONFIG_SOLARIS 84c8ec041dSAndrew Deason const char *powerdown_flag = "-i5"; 85c8ec041dSAndrew Deason const char *halt_flag = "-i0"; 86c8ec041dSAndrew Deason const char *reboot_flag = "-i6"; 87e40762fcSAlexander Ivanov #elif defined(CONFIG_BSD) 88e40762fcSAlexander Ivanov const char *powerdown_flag = "-p"; 89e40762fcSAlexander Ivanov const char *halt_flag = "-h"; 90e40762fcSAlexander Ivanov const char *reboot_flag = "-r"; 91c8ec041dSAndrew Deason #else 92c8ec041dSAndrew Deason const char *powerdown_flag = "-P"; 93c8ec041dSAndrew Deason const char *halt_flag = "-H"; 94c8ec041dSAndrew Deason const char *reboot_flag = "-r"; 95c8ec041dSAndrew Deason #endif 96c8ec041dSAndrew Deason 97c216e5adSMichael Roth slog("guest-shutdown called, mode: %s", mode); 9891eab32aSMarkus Armbruster if (!mode || strcmp(mode, "powerdown") == 0) { 99c8ec041dSAndrew Deason shutdown_flag = powerdown_flag; 100c216e5adSMichael Roth } else if (strcmp(mode, "halt") == 0) { 101c8ec041dSAndrew Deason shutdown_flag = halt_flag; 102c216e5adSMichael Roth } else if (strcmp(mode, "reboot") == 0) { 103c8ec041dSAndrew Deason shutdown_flag = reboot_flag; 104c216e5adSMichael Roth } else { 10577dbc81bSMarkus Armbruster error_setg(errp, 106d220a6dfSLuiz Capitulino "mode is invalid (valid values are: halt|powerdown|reboot"); 107c216e5adSMichael Roth return; 108c216e5adSMichael Roth } 109c216e5adSMichael Roth 110d5dd3498SLuiz Capitulino pid = fork(); 111d5dd3498SLuiz Capitulino if (pid == 0) { 112c216e5adSMichael Roth /* child, start the shutdown */ 113c216e5adSMichael Roth setsid(); 1143674838cSLuiz Capitulino reopen_fd_to_null(0); 1153674838cSLuiz Capitulino reopen_fd_to_null(1); 1163674838cSLuiz Capitulino reopen_fd_to_null(2); 117c216e5adSMichael Roth 118c8ec041dSAndrew Deason #ifdef CONFIG_SOLARIS 119c8ec041dSAndrew Deason execl("/sbin/shutdown", "shutdown", shutdown_flag, "-g0", "-y", 120c8ec041dSAndrew Deason "hypervisor initiated shutdown", (char *)NULL); 121e40762fcSAlexander Ivanov #elif defined(CONFIG_BSD) 122e40762fcSAlexander Ivanov execl("/sbin/shutdown", "shutdown", shutdown_flag, "+0", 123e40762fcSAlexander Ivanov "hypervisor initiated shutdown", (char *)NULL); 124c8ec041dSAndrew Deason #else 125fcc41961SMarc-André Lureau execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0", 126fcc41961SMarc-André Lureau "hypervisor initiated shutdown", (char *)NULL); 127c8ec041dSAndrew Deason #endif 1283674838cSLuiz Capitulino _exit(EXIT_FAILURE); 129d5dd3498SLuiz Capitulino } else if (pid < 0) { 13077dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to create child process"); 131d5dd3498SLuiz Capitulino return; 132d5dd3498SLuiz Capitulino } 133d5dd3498SLuiz Capitulino 134d220a6dfSLuiz Capitulino ga_wait_child(pid, &status, &local_err); 13584d18f06SMarkus Armbruster if (local_err) { 13677dbc81bSMarkus Armbruster error_propagate(errp, local_err); 137d220a6dfSLuiz Capitulino return; 138d220a6dfSLuiz Capitulino } 139d220a6dfSLuiz Capitulino 140d220a6dfSLuiz Capitulino if (!WIFEXITED(status)) { 14177dbc81bSMarkus Armbruster error_setg(errp, "child process has terminated abnormally"); 142d220a6dfSLuiz Capitulino return; 143d220a6dfSLuiz Capitulino } 144d220a6dfSLuiz Capitulino 145d220a6dfSLuiz Capitulino if (WEXITSTATUS(status)) { 14677dbc81bSMarkus Armbruster error_setg(errp, "child process has failed to shutdown"); 147d220a6dfSLuiz Capitulino return; 148d220a6dfSLuiz Capitulino } 149d220a6dfSLuiz Capitulino 150085d8134SPeter Maydell /* succeeded */ 151c216e5adSMichael Roth } 152c216e5adSMichael Roth 1532c958923SMichal Privoznik void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 154a1bca57fSLei Li { 155a1bca57fSLei Li int ret; 156a1bca57fSLei Li int status; 157a1bca57fSLei Li pid_t pid; 158a1bca57fSLei Li Error *local_err = NULL; 159a1bca57fSLei Li struct timeval tv; 1605c6096e5SCornelia Huck static const char hwclock_path[] = "/sbin/hwclock"; 1615c6096e5SCornelia Huck static int hwclock_available = -1; 1625c6096e5SCornelia Huck 1635c6096e5SCornelia Huck if (hwclock_available < 0) { 1645c6096e5SCornelia Huck hwclock_available = (access(hwclock_path, X_OK) == 0); 1655c6096e5SCornelia Huck } 1665c6096e5SCornelia Huck 1675c6096e5SCornelia Huck if (!hwclock_available) { 1685c6096e5SCornelia Huck error_setg(errp, QERR_UNSUPPORTED); 1695c6096e5SCornelia Huck return; 1705c6096e5SCornelia Huck } 171a1bca57fSLei Li 1722c958923SMichal Privoznik /* If user has passed a time, validate and set it. */ 1732c958923SMichal Privoznik if (has_time) { 17400d2f370SMarc-André Lureau GDate date = { 0, }; 17500d2f370SMarc-André Lureau 176a1bca57fSLei Li /* year-2038 will overflow in case time_t is 32bit */ 177a1bca57fSLei Li if (time_ns / 1000000000 != (time_t)(time_ns / 1000000000)) { 178a1bca57fSLei Li error_setg(errp, "Time %" PRId64 " is too large", time_ns); 179a1bca57fSLei Li return; 180a1bca57fSLei Li } 181a1bca57fSLei Li 182a1bca57fSLei Li tv.tv_sec = time_ns / 1000000000; 183a1bca57fSLei Li tv.tv_usec = (time_ns % 1000000000) / 1000; 18400d2f370SMarc-André Lureau g_date_set_time_t(&date, tv.tv_sec); 18500d2f370SMarc-André Lureau if (date.year < 1970 || date.year >= 2070) { 18600d2f370SMarc-André Lureau error_setg_errno(errp, errno, "Invalid time"); 18700d2f370SMarc-André Lureau return; 18800d2f370SMarc-André Lureau } 189a1bca57fSLei Li 190a1bca57fSLei Li ret = settimeofday(&tv, NULL); 191a1bca57fSLei Li if (ret < 0) { 192a1bca57fSLei Li error_setg_errno(errp, errno, "Failed to set time to guest"); 193a1bca57fSLei Li return; 194a1bca57fSLei Li } 1952c958923SMichal Privoznik } 196a1bca57fSLei Li 1972c958923SMichal Privoznik /* Now, if user has passed a time to set and the system time is set, we 1982c958923SMichal Privoznik * just need to synchronize the hardware clock. However, if no time was 1992c958923SMichal Privoznik * passed, user is requesting the opposite: set the system time from the 2001634df56SAmos Kong * hardware clock (RTC). */ 201a1bca57fSLei Li pid = fork(); 202a1bca57fSLei Li if (pid == 0) { 203a1bca57fSLei Li setsid(); 204a1bca57fSLei Li reopen_fd_to_null(0); 205a1bca57fSLei Li reopen_fd_to_null(1); 206a1bca57fSLei Li reopen_fd_to_null(2); 207a1bca57fSLei Li 2082c958923SMichal Privoznik /* Use '/sbin/hwclock -w' to set RTC from the system time, 2092c958923SMichal Privoznik * or '/sbin/hwclock -s' to set the system time from RTC. */ 210fcc41961SMarc-André Lureau execl(hwclock_path, "hwclock", has_time ? "-w" : "-s", NULL); 211a1bca57fSLei Li _exit(EXIT_FAILURE); 212a1bca57fSLei Li } else if (pid < 0) { 213a1bca57fSLei Li error_setg_errno(errp, errno, "failed to create child process"); 214a1bca57fSLei Li return; 215a1bca57fSLei Li } 216a1bca57fSLei Li 217a1bca57fSLei Li ga_wait_child(pid, &status, &local_err); 21884d18f06SMarkus Armbruster if (local_err) { 219a1bca57fSLei Li error_propagate(errp, local_err); 220a1bca57fSLei Li return; 221a1bca57fSLei Li } 222a1bca57fSLei Li 223a1bca57fSLei Li if (!WIFEXITED(status)) { 224a1bca57fSLei Li error_setg(errp, "child process has terminated abnormally"); 225a1bca57fSLei Li return; 226a1bca57fSLei Li } 227a1bca57fSLei Li 228a1bca57fSLei Li if (WEXITSTATUS(status)) { 229a1bca57fSLei Li error_setg(errp, "hwclock failed to set hardware clock to system time"); 230a1bca57fSLei Li return; 231a1bca57fSLei Li } 232a1bca57fSLei Li } 233a1bca57fSLei Li 234895b00f6SMarc-André Lureau typedef enum { 235895b00f6SMarc-André Lureau RW_STATE_NEW, 236895b00f6SMarc-André Lureau RW_STATE_READING, 237895b00f6SMarc-André Lureau RW_STATE_WRITING, 238895b00f6SMarc-André Lureau } RwState; 239895b00f6SMarc-André Lureau 2405d3586b8SPhilippe Mathieu-Daudé struct GuestFileHandle { 241c216e5adSMichael Roth uint64_t id; 242c216e5adSMichael Roth FILE *fh; 243895b00f6SMarc-André Lureau RwState state; 244c216e5adSMichael Roth QTAILQ_ENTRY(GuestFileHandle) next; 2455d3586b8SPhilippe Mathieu-Daudé }; 246c216e5adSMichael Roth 247c216e5adSMichael Roth static struct { 248c216e5adSMichael Roth QTAILQ_HEAD(, GuestFileHandle) filehandles; 249b4fe97c8SDenis V. Lunev } guest_file_state = { 250b4fe97c8SDenis V. Lunev .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 251b4fe97c8SDenis V. Lunev }; 252c216e5adSMichael Roth 25339097dafSMichael Roth static int64_t guest_file_handle_add(FILE *fh, Error **errp) 254c216e5adSMichael Roth { 255c216e5adSMichael Roth GuestFileHandle *gfh; 25639097dafSMichael Roth int64_t handle; 25739097dafSMichael Roth 25839097dafSMichael Roth handle = ga_get_fd_handle(ga_state, errp); 259a903f40cSMarkus Armbruster if (handle < 0) { 260a903f40cSMarkus Armbruster return -1; 26139097dafSMichael Roth } 262c216e5adSMichael Roth 263f3a06403SMarkus Armbruster gfh = g_new0(GuestFileHandle, 1); 26439097dafSMichael Roth gfh->id = handle; 265c216e5adSMichael Roth gfh->fh = fh; 266c216e5adSMichael Roth QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 26739097dafSMichael Roth 26839097dafSMichael Roth return handle; 269c216e5adSMichael Roth } 270c216e5adSMichael Roth 2715d3586b8SPhilippe Mathieu-Daudé GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 272c216e5adSMichael Roth { 273c216e5adSMichael Roth GuestFileHandle *gfh; 274c216e5adSMichael Roth 275c216e5adSMichael Roth QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) 276c216e5adSMichael Roth { 277c216e5adSMichael Roth if (gfh->id == id) { 278c216e5adSMichael Roth return gfh; 279c216e5adSMichael Roth } 280c216e5adSMichael Roth } 281c216e5adSMichael Roth 28277dbc81bSMarkus Armbruster error_setg(errp, "handle '%" PRId64 "' has not been found", id); 283c216e5adSMichael Roth return NULL; 284c216e5adSMichael Roth } 285c216e5adSMichael Roth 286c689b4f1SLaszlo Ersek typedef const char * const ccpc; 287c689b4f1SLaszlo Ersek 2888fe6bbcaSLaszlo Ersek #ifndef O_BINARY 2898fe6bbcaSLaszlo Ersek #define O_BINARY 0 2908fe6bbcaSLaszlo Ersek #endif 2918fe6bbcaSLaszlo Ersek 292c689b4f1SLaszlo Ersek /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */ 293c689b4f1SLaszlo Ersek static const struct { 294c689b4f1SLaszlo Ersek ccpc *forms; 295c689b4f1SLaszlo Ersek int oflag_base; 296c689b4f1SLaszlo Ersek } guest_file_open_modes[] = { 2978fe6bbcaSLaszlo Ersek { (ccpc[]){ "r", NULL }, O_RDONLY }, 2988fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb", NULL }, O_RDONLY | O_BINARY }, 2998fe6bbcaSLaszlo Ersek { (ccpc[]){ "w", NULL }, O_WRONLY | O_CREAT | O_TRUNC }, 3008fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb", NULL }, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY }, 3018fe6bbcaSLaszlo Ersek { (ccpc[]){ "a", NULL }, O_WRONLY | O_CREAT | O_APPEND }, 3028fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab", NULL }, O_WRONLY | O_CREAT | O_APPEND | O_BINARY }, 3038fe6bbcaSLaszlo Ersek { (ccpc[]){ "r+", NULL }, O_RDWR }, 3048fe6bbcaSLaszlo Ersek { (ccpc[]){ "rb+", "r+b", NULL }, O_RDWR | O_BINARY }, 3058fe6bbcaSLaszlo Ersek { (ccpc[]){ "w+", NULL }, O_RDWR | O_CREAT | O_TRUNC }, 3068fe6bbcaSLaszlo Ersek { (ccpc[]){ "wb+", "w+b", NULL }, O_RDWR | O_CREAT | O_TRUNC | O_BINARY }, 3078fe6bbcaSLaszlo Ersek { (ccpc[]){ "a+", NULL }, O_RDWR | O_CREAT | O_APPEND }, 3088fe6bbcaSLaszlo Ersek { (ccpc[]){ "ab+", "a+b", NULL }, O_RDWR | O_CREAT | O_APPEND | O_BINARY } 309c689b4f1SLaszlo Ersek }; 310c689b4f1SLaszlo Ersek 311c689b4f1SLaszlo Ersek static int 31277dbc81bSMarkus Armbruster find_open_flag(const char *mode_str, Error **errp) 313c689b4f1SLaszlo Ersek { 314c689b4f1SLaszlo Ersek unsigned mode; 315c689b4f1SLaszlo Ersek 316c689b4f1SLaszlo Ersek for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 317c689b4f1SLaszlo Ersek ccpc *form; 318c689b4f1SLaszlo Ersek 319c689b4f1SLaszlo Ersek form = guest_file_open_modes[mode].forms; 320c689b4f1SLaszlo Ersek while (*form != NULL && strcmp(*form, mode_str) != 0) { 321c689b4f1SLaszlo Ersek ++form; 322c689b4f1SLaszlo Ersek } 323c689b4f1SLaszlo Ersek if (*form != NULL) { 324c689b4f1SLaszlo Ersek break; 325c689b4f1SLaszlo Ersek } 326c689b4f1SLaszlo Ersek } 327c689b4f1SLaszlo Ersek 328c689b4f1SLaszlo Ersek if (mode == ARRAY_SIZE(guest_file_open_modes)) { 32977dbc81bSMarkus Armbruster error_setg(errp, "invalid file open mode '%s'", mode_str); 330c689b4f1SLaszlo Ersek return -1; 331c689b4f1SLaszlo Ersek } 332c689b4f1SLaszlo Ersek return guest_file_open_modes[mode].oflag_base | O_NOCTTY | O_NONBLOCK; 333c689b4f1SLaszlo Ersek } 334c689b4f1SLaszlo Ersek 335c689b4f1SLaszlo Ersek #define DEFAULT_NEW_FILE_MODE (S_IRUSR | S_IWUSR | \ 336c689b4f1SLaszlo Ersek S_IRGRP | S_IWGRP | \ 337c689b4f1SLaszlo Ersek S_IROTH | S_IWOTH) 338c689b4f1SLaszlo Ersek 339c689b4f1SLaszlo Ersek static FILE * 34077dbc81bSMarkus Armbruster safe_open_or_create(const char *path, const char *mode, Error **errp) 341c689b4f1SLaszlo Ersek { 342c689b4f1SLaszlo Ersek int oflag; 34369f56c14SMarc-André Lureau int fd = -1; 34469f56c14SMarc-André Lureau FILE *f = NULL; 345c689b4f1SLaszlo Ersek 34669f56c14SMarc-André Lureau oflag = find_open_flag(mode, errp); 34769f56c14SMarc-André Lureau if (oflag < 0) { 34869f56c14SMarc-André Lureau goto end; 34969f56c14SMarc-André Lureau } 350c689b4f1SLaszlo Ersek 351c689b4f1SLaszlo Ersek /* If the caller wants / allows creation of a new file, we implement it 352c689b4f1SLaszlo Ersek * with a two step process: open() + (open() / fchmod()). 353c689b4f1SLaszlo Ersek * 354c689b4f1SLaszlo Ersek * First we insist on creating the file exclusively as a new file. If 355c689b4f1SLaszlo Ersek * that succeeds, we're free to set any file-mode bits on it. (The 356c689b4f1SLaszlo Ersek * motivation is that we want to set those file-mode bits independently 357c689b4f1SLaszlo Ersek * of the current umask.) 358c689b4f1SLaszlo Ersek * 359c689b4f1SLaszlo Ersek * If the exclusive creation fails because the file already exists 360c689b4f1SLaszlo Ersek * (EEXIST is not possible for any other reason), we just attempt to 361c689b4f1SLaszlo Ersek * open the file, but in this case we won't be allowed to change the 362c689b4f1SLaszlo Ersek * file-mode bits on the preexistent file. 363c689b4f1SLaszlo Ersek * 364c689b4f1SLaszlo Ersek * The pathname should never disappear between the two open()s in 365c689b4f1SLaszlo Ersek * practice. If it happens, then someone very likely tried to race us. 366c689b4f1SLaszlo Ersek * In this case just go ahead and report the ENOENT from the second 367c689b4f1SLaszlo Ersek * open() to the caller. 368c689b4f1SLaszlo Ersek * 369c689b4f1SLaszlo Ersek * If the caller wants to open a preexistent file, then the first 370c689b4f1SLaszlo Ersek * open() is decisive and its third argument is ignored, and the second 371c689b4f1SLaszlo Ersek * open() and the fchmod() are never called. 372c689b4f1SLaszlo Ersek */ 3731a89a17bSMarc-André Lureau fd = qga_open_cloexec(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0); 374c689b4f1SLaszlo Ersek if (fd == -1 && errno == EEXIST) { 375c689b4f1SLaszlo Ersek oflag &= ~(unsigned)O_CREAT; 3761a89a17bSMarc-André Lureau fd = qga_open_cloexec(path, oflag, 0); 377c689b4f1SLaszlo Ersek } 378c689b4f1SLaszlo Ersek if (fd == -1) { 37969f56c14SMarc-André Lureau error_setg_errno(errp, errno, 38069f56c14SMarc-André Lureau "failed to open file '%s' (mode: '%s')", 38169f56c14SMarc-André Lureau path, mode); 38269f56c14SMarc-André Lureau goto end; 38369f56c14SMarc-André Lureau } 38469f56c14SMarc-André Lureau 385c689b4f1SLaszlo Ersek if ((oflag & O_CREAT) && fchmod(fd, DEFAULT_NEW_FILE_MODE) == -1) { 38669f56c14SMarc-André Lureau error_setg_errno(errp, errno, "failed to set permission " 387c689b4f1SLaszlo Ersek "0%03o on new file '%s' (mode: '%s')", 388c689b4f1SLaszlo Ersek (unsigned)DEFAULT_NEW_FILE_MODE, path, mode); 38969f56c14SMarc-André Lureau goto end; 39069f56c14SMarc-André Lureau } 391c689b4f1SLaszlo Ersek 392c689b4f1SLaszlo Ersek f = fdopen(fd, mode); 393c689b4f1SLaszlo Ersek if (f == NULL) { 39469f56c14SMarc-André Lureau error_setg_errno(errp, errno, "failed to associate stdio stream with " 39569f56c14SMarc-André Lureau "file descriptor %d, file '%s' (mode: '%s')", 39669f56c14SMarc-André Lureau fd, path, mode); 397c689b4f1SLaszlo Ersek } 398c689b4f1SLaszlo Ersek 39969f56c14SMarc-André Lureau end: 40069f56c14SMarc-André Lureau if (f == NULL && fd != -1) { 401c689b4f1SLaszlo Ersek close(fd); 4022b720018SLaszlo Ersek if (oflag & O_CREAT) { 4032b720018SLaszlo Ersek unlink(path); 4042b720018SLaszlo Ersek } 405c689b4f1SLaszlo Ersek } 40669f56c14SMarc-André Lureau return f; 407c689b4f1SLaszlo Ersek } 408c689b4f1SLaszlo Ersek 40991eab32aSMarkus Armbruster int64_t qmp_guest_file_open(const char *path, const char *mode, 41077dbc81bSMarkus Armbruster Error **errp) 411c216e5adSMichael Roth { 412c216e5adSMichael Roth FILE *fh; 413c689b4f1SLaszlo Ersek Error *local_err = NULL; 41485b6f6f5SSimon Zolin int64_t handle; 415c216e5adSMichael Roth 41691eab32aSMarkus Armbruster if (!mode) { 417c216e5adSMichael Roth mode = "r"; 418c216e5adSMichael Roth } 419c216e5adSMichael Roth slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 420c689b4f1SLaszlo Ersek fh = safe_open_or_create(path, mode, &local_err); 421c689b4f1SLaszlo Ersek if (local_err != NULL) { 42277dbc81bSMarkus Armbruster error_propagate(errp, local_err); 423c216e5adSMichael Roth return -1; 424c216e5adSMichael Roth } 425c216e5adSMichael Roth 426c216e5adSMichael Roth /* set fd non-blocking to avoid common use cases (like reading from a 427c216e5adSMichael Roth * named pipe) from hanging the agent 428c216e5adSMichael Roth */ 429b0a8f9adSMarc-André Lureau if (!g_unix_set_fd_nonblocking(fileno(fh), true, NULL)) { 430b0a8f9adSMarc-André Lureau fclose(fh); 431b0a8f9adSMarc-André Lureau error_setg_errno(errp, errno, "Failed to set FD nonblocking"); 432b0a8f9adSMarc-André Lureau return -1; 433b0a8f9adSMarc-André Lureau } 434c216e5adSMichael Roth 43577dbc81bSMarkus Armbruster handle = guest_file_handle_add(fh, errp); 436a903f40cSMarkus Armbruster if (handle < 0) { 43739097dafSMichael Roth fclose(fh); 43839097dafSMichael Roth return -1; 43939097dafSMichael Roth } 44039097dafSMichael Roth 441d607a523SStefan Weil slog("guest-file-open, handle: %" PRId64, handle); 44239097dafSMichael Roth return handle; 443c216e5adSMichael Roth } 444c216e5adSMichael Roth 44577dbc81bSMarkus Armbruster void qmp_guest_file_close(int64_t handle, Error **errp) 446c216e5adSMichael Roth { 44777dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 448c216e5adSMichael Roth int ret; 449c216e5adSMichael Roth 450d607a523SStefan Weil slog("guest-file-close called, handle: %" PRId64, handle); 451c216e5adSMichael Roth if (!gfh) { 452c216e5adSMichael Roth return; 453c216e5adSMichael Roth } 454c216e5adSMichael Roth 455c216e5adSMichael Roth ret = fclose(gfh->fh); 4563ac4b7c5SLuiz Capitulino if (ret == EOF) { 45777dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to close handle"); 458c216e5adSMichael Roth return; 459c216e5adSMichael Roth } 460c216e5adSMichael Roth 461c216e5adSMichael Roth QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 462c216e5adSMichael Roth g_free(gfh); 463c216e5adSMichael Roth } 464c216e5adSMichael Roth 465ead83a13SPhilippe Mathieu-Daudé GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 46677dbc81bSMarkus Armbruster int64_t count, Error **errp) 467c216e5adSMichael Roth { 468c216e5adSMichael Roth GuestFileRead *read_data = NULL; 469c216e5adSMichael Roth guchar *buf; 470ead83a13SPhilippe Mathieu-Daudé FILE *fh = gfh->fh; 471c216e5adSMichael Roth size_t read_count; 472c216e5adSMichael Roth 473895b00f6SMarc-André Lureau /* explicitly flush when switching from writing to reading */ 474895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_WRITING) { 475895b00f6SMarc-André Lureau int ret = fflush(fh); 476895b00f6SMarc-André Lureau if (ret == EOF) { 477895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to flush file"); 478895b00f6SMarc-André Lureau return NULL; 479895b00f6SMarc-André Lureau } 480895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 481895b00f6SMarc-André Lureau } 482895b00f6SMarc-André Lureau 483c216e5adSMichael Roth buf = g_malloc0(count + 1); 484c216e5adSMichael Roth read_count = fread(buf, 1, count, fh); 485c216e5adSMichael Roth if (ferror(fh)) { 48677dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to read file"); 487c216e5adSMichael Roth } else { 488c216e5adSMichael Roth buf[read_count] = 0; 489f3a06403SMarkus Armbruster read_data = g_new0(GuestFileRead, 1); 490c216e5adSMichael Roth read_data->count = read_count; 491c216e5adSMichael Roth read_data->eof = feof(fh); 492c216e5adSMichael Roth if (read_count) { 493c216e5adSMichael Roth read_data->buf_b64 = g_base64_encode(buf, read_count); 494c216e5adSMichael Roth } 495895b00f6SMarc-André Lureau gfh->state = RW_STATE_READING; 496c216e5adSMichael Roth } 497c216e5adSMichael Roth g_free(buf); 498c216e5adSMichael Roth clearerr(fh); 499c216e5adSMichael Roth 500c216e5adSMichael Roth return read_data; 501c216e5adSMichael Roth } 502c216e5adSMichael Roth 503c216e5adSMichael Roth GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 50477dbc81bSMarkus Armbruster bool has_count, int64_t count, 50577dbc81bSMarkus Armbruster Error **errp) 506c216e5adSMichael Roth { 507c216e5adSMichael Roth GuestFileWrite *write_data = NULL; 508c216e5adSMichael Roth guchar *buf; 509c216e5adSMichael Roth gsize buf_len; 510c216e5adSMichael Roth int write_count; 51177dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 512c216e5adSMichael Roth FILE *fh; 513c216e5adSMichael Roth 514c216e5adSMichael Roth if (!gfh) { 515c216e5adSMichael Roth return NULL; 516c216e5adSMichael Roth } 517c216e5adSMichael Roth 518c216e5adSMichael Roth fh = gfh->fh; 519895b00f6SMarc-André Lureau 520895b00f6SMarc-André Lureau if (gfh->state == RW_STATE_READING) { 521895b00f6SMarc-André Lureau int ret = fseek(fh, 0, SEEK_CUR); 522895b00f6SMarc-André Lureau if (ret == -1) { 523895b00f6SMarc-André Lureau error_setg_errno(errp, errno, "failed to seek file"); 524895b00f6SMarc-André Lureau return NULL; 525895b00f6SMarc-André Lureau } 526895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 527895b00f6SMarc-André Lureau } 528895b00f6SMarc-André Lureau 529920639caSDaniel P. Berrange buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 530920639caSDaniel P. Berrange if (!buf) { 531920639caSDaniel P. Berrange return NULL; 532920639caSDaniel P. Berrange } 533c216e5adSMichael Roth 534c216e5adSMichael Roth if (!has_count) { 535c216e5adSMichael Roth count = buf_len; 536c216e5adSMichael Roth } else if (count < 0 || count > buf_len) { 53777dbc81bSMarkus Armbruster error_setg(errp, "value '%" PRId64 "' is invalid for argument count", 538db3edb66SLuiz Capitulino count); 539c216e5adSMichael Roth g_free(buf); 540c216e5adSMichael Roth return NULL; 541c216e5adSMichael Roth } 542c216e5adSMichael Roth 543c216e5adSMichael Roth write_count = fwrite(buf, 1, count, fh); 544c216e5adSMichael Roth if (ferror(fh)) { 54577dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to write to file"); 546d607a523SStefan Weil slog("guest-file-write failed, handle: %" PRId64, handle); 547c216e5adSMichael Roth } else { 548f3a06403SMarkus Armbruster write_data = g_new0(GuestFileWrite, 1); 549c216e5adSMichael Roth write_data->count = write_count; 550c216e5adSMichael Roth write_data->eof = feof(fh); 551895b00f6SMarc-André Lureau gfh->state = RW_STATE_WRITING; 552c216e5adSMichael Roth } 553c216e5adSMichael Roth g_free(buf); 554c216e5adSMichael Roth clearerr(fh); 555c216e5adSMichael Roth 556c216e5adSMichael Roth return write_data; 557c216e5adSMichael Roth } 558c216e5adSMichael Roth 559c216e5adSMichael Roth struct GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 5600b4b4938SEric Blake GuestFileWhence *whence_code, 5610b4b4938SEric Blake Error **errp) 562c216e5adSMichael Roth { 56377dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 564c216e5adSMichael Roth GuestFileSeek *seek_data = NULL; 565c216e5adSMichael Roth FILE *fh; 566c216e5adSMichael Roth int ret; 5670a982b1bSEric Blake int whence; 5680b4b4938SEric Blake Error *err = NULL; 569c216e5adSMichael Roth 570c216e5adSMichael Roth if (!gfh) { 571c216e5adSMichael Roth return NULL; 572c216e5adSMichael Roth } 573c216e5adSMichael Roth 5740a982b1bSEric Blake /* We stupidly exposed 'whence':'int' in our qapi */ 5750b4b4938SEric Blake whence = ga_parse_whence(whence_code, &err); 5760b4b4938SEric Blake if (err) { 5770b4b4938SEric Blake error_propagate(errp, err); 5780a982b1bSEric Blake return NULL; 5790a982b1bSEric Blake } 5800a982b1bSEric Blake 581c216e5adSMichael Roth fh = gfh->fh; 582c216e5adSMichael Roth ret = fseek(fh, offset, whence); 583c216e5adSMichael Roth if (ret == -1) { 58477dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to seek file"); 585895b00f6SMarc-André Lureau if (errno == ESPIPE) { 586895b00f6SMarc-André Lureau /* file is non-seekable, stdio shouldn't be buffering anyways */ 587895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 588895b00f6SMarc-André Lureau } 589c216e5adSMichael Roth } else { 59010b7c5ddSMarkus Armbruster seek_data = g_new0(GuestFileSeek, 1); 591c216e5adSMichael Roth seek_data->position = ftell(fh); 592c216e5adSMichael Roth seek_data->eof = feof(fh); 593895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 594c216e5adSMichael Roth } 595c216e5adSMichael Roth clearerr(fh); 596c216e5adSMichael Roth 597c216e5adSMichael Roth return seek_data; 598c216e5adSMichael Roth } 599c216e5adSMichael Roth 60077dbc81bSMarkus Armbruster void qmp_guest_file_flush(int64_t handle, Error **errp) 601c216e5adSMichael Roth { 60277dbc81bSMarkus Armbruster GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 603c216e5adSMichael Roth FILE *fh; 604c216e5adSMichael Roth int ret; 605c216e5adSMichael Roth 606c216e5adSMichael Roth if (!gfh) { 607c216e5adSMichael Roth return; 608c216e5adSMichael Roth } 609c216e5adSMichael Roth 610c216e5adSMichael Roth fh = gfh->fh; 611c216e5adSMichael Roth ret = fflush(fh); 612c216e5adSMichael Roth if (ret == EOF) { 61377dbc81bSMarkus Armbruster error_setg_errno(errp, errno, "failed to flush file"); 614895b00f6SMarc-André Lureau } else { 615895b00f6SMarc-André Lureau gfh->state = RW_STATE_NEW; 616c216e5adSMichael Roth } 617c216e5adSMichael Roth } 618c216e5adSMichael Roth 619eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) 620518b0d80SAlexander Ivanov void free_fs_mount_list(FsMountList *mounts) 621c216e5adSMichael Roth { 622af02203fSPaolo Bonzini FsMount *mount, *temp; 623c216e5adSMichael Roth 6249e8aded4SMichael Roth if (!mounts) { 6259e8aded4SMichael Roth return; 6269e8aded4SMichael Roth } 6279e8aded4SMichael Roth 6289e8aded4SMichael Roth QTAILQ_FOREACH_SAFE(mount, mounts, next, temp) { 6299e8aded4SMichael Roth QTAILQ_REMOVE(mounts, mount, next); 630c216e5adSMichael Roth g_free(mount->dirname); 631c216e5adSMichael Roth g_free(mount->devtype); 632c216e5adSMichael Roth g_free(mount); 633c216e5adSMichael Roth } 6349e8aded4SMichael Roth } 635eab5fd59SPaolo Bonzini #endif 636eab5fd59SPaolo Bonzini 637eab5fd59SPaolo Bonzini #if defined(CONFIG_FSFREEZE) 638bad0001eSAlexander Ivanov typedef enum { 639bad0001eSAlexander Ivanov FSFREEZE_HOOK_THAW = 0, 640bad0001eSAlexander Ivanov FSFREEZE_HOOK_FREEZE, 641bad0001eSAlexander Ivanov } FsfreezeHookArg; 642bad0001eSAlexander Ivanov 643bad0001eSAlexander Ivanov static const char *fsfreeze_hook_arg_string[] = { 644bad0001eSAlexander Ivanov "thaw", 645bad0001eSAlexander Ivanov "freeze", 646bad0001eSAlexander Ivanov }; 647bad0001eSAlexander Ivanov 648bad0001eSAlexander Ivanov static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp) 649bad0001eSAlexander Ivanov { 650bad0001eSAlexander Ivanov int status; 651bad0001eSAlexander Ivanov pid_t pid; 652bad0001eSAlexander Ivanov const char *hook; 653bad0001eSAlexander Ivanov const char *arg_str = fsfreeze_hook_arg_string[arg]; 654bad0001eSAlexander Ivanov Error *local_err = NULL; 655bad0001eSAlexander Ivanov 656bad0001eSAlexander Ivanov hook = ga_fsfreeze_hook(ga_state); 657bad0001eSAlexander Ivanov if (!hook) { 658bad0001eSAlexander Ivanov return; 659bad0001eSAlexander Ivanov } 660bad0001eSAlexander Ivanov if (access(hook, X_OK) != 0) { 661bad0001eSAlexander Ivanov error_setg_errno(errp, errno, "can't access fsfreeze hook '%s'", hook); 662bad0001eSAlexander Ivanov return; 663bad0001eSAlexander Ivanov } 664bad0001eSAlexander Ivanov 665bad0001eSAlexander Ivanov slog("executing fsfreeze hook with arg '%s'", arg_str); 666bad0001eSAlexander Ivanov pid = fork(); 667bad0001eSAlexander Ivanov if (pid == 0) { 668bad0001eSAlexander Ivanov setsid(); 669bad0001eSAlexander Ivanov reopen_fd_to_null(0); 670bad0001eSAlexander Ivanov reopen_fd_to_null(1); 671bad0001eSAlexander Ivanov reopen_fd_to_null(2); 672bad0001eSAlexander Ivanov 673bad0001eSAlexander Ivanov execl(hook, hook, arg_str, NULL); 674bad0001eSAlexander Ivanov _exit(EXIT_FAILURE); 675bad0001eSAlexander Ivanov } else if (pid < 0) { 676bad0001eSAlexander Ivanov error_setg_errno(errp, errno, "failed to create child process"); 677bad0001eSAlexander Ivanov return; 678bad0001eSAlexander Ivanov } 679bad0001eSAlexander Ivanov 680bad0001eSAlexander Ivanov ga_wait_child(pid, &status, &local_err); 681bad0001eSAlexander Ivanov if (local_err) { 682bad0001eSAlexander Ivanov error_propagate(errp, local_err); 683bad0001eSAlexander Ivanov return; 684bad0001eSAlexander Ivanov } 685bad0001eSAlexander Ivanov 686bad0001eSAlexander Ivanov if (!WIFEXITED(status)) { 687bad0001eSAlexander Ivanov error_setg(errp, "fsfreeze hook has terminated abnormally"); 688bad0001eSAlexander Ivanov return; 689bad0001eSAlexander Ivanov } 690bad0001eSAlexander Ivanov 691bad0001eSAlexander Ivanov status = WEXITSTATUS(status); 692bad0001eSAlexander Ivanov if (status) { 693bad0001eSAlexander Ivanov error_setg(errp, "fsfreeze hook has failed with status %d", status); 694bad0001eSAlexander Ivanov return; 695bad0001eSAlexander Ivanov } 696bad0001eSAlexander Ivanov } 697bad0001eSAlexander Ivanov 698bad0001eSAlexander Ivanov /* 699bad0001eSAlexander Ivanov * Return status of freeze/thaw 700bad0001eSAlexander Ivanov */ 701bad0001eSAlexander Ivanov GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 702bad0001eSAlexander Ivanov { 703bad0001eSAlexander Ivanov if (ga_is_frozen(ga_state)) { 704bad0001eSAlexander Ivanov return GUEST_FSFREEZE_STATUS_FROZEN; 705bad0001eSAlexander Ivanov } 706bad0001eSAlexander Ivanov 707bad0001eSAlexander Ivanov return GUEST_FSFREEZE_STATUS_THAWED; 708bad0001eSAlexander Ivanov } 709bad0001eSAlexander Ivanov 710bad0001eSAlexander Ivanov int64_t qmp_guest_fsfreeze_freeze(Error **errp) 711bad0001eSAlexander Ivanov { 712bad0001eSAlexander Ivanov return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 713bad0001eSAlexander Ivanov } 714bad0001eSAlexander Ivanov 715bad0001eSAlexander Ivanov int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 716bad0001eSAlexander Ivanov strList *mountpoints, 717bad0001eSAlexander Ivanov Error **errp) 718bad0001eSAlexander Ivanov { 719bad0001eSAlexander Ivanov int ret; 720bad0001eSAlexander Ivanov FsMountList mounts; 721bad0001eSAlexander Ivanov Error *local_err = NULL; 722bad0001eSAlexander Ivanov 723bad0001eSAlexander Ivanov slog("guest-fsfreeze called"); 724bad0001eSAlexander Ivanov 725bad0001eSAlexander Ivanov execute_fsfreeze_hook(FSFREEZE_HOOK_FREEZE, &local_err); 726bad0001eSAlexander Ivanov if (local_err) { 727bad0001eSAlexander Ivanov error_propagate(errp, local_err); 728bad0001eSAlexander Ivanov return -1; 729bad0001eSAlexander Ivanov } 730bad0001eSAlexander Ivanov 731bad0001eSAlexander Ivanov QTAILQ_INIT(&mounts); 732bad0001eSAlexander Ivanov if (!build_fs_mount_list(&mounts, &local_err)) { 733bad0001eSAlexander Ivanov error_propagate(errp, local_err); 734bad0001eSAlexander Ivanov return -1; 735bad0001eSAlexander Ivanov } 736bad0001eSAlexander Ivanov 737bad0001eSAlexander Ivanov /* cannot risk guest agent blocking itself on a write in this state */ 738bad0001eSAlexander Ivanov ga_set_frozen(ga_state); 739bad0001eSAlexander Ivanov 740bad0001eSAlexander Ivanov ret = qmp_guest_fsfreeze_do_freeze_list(has_mountpoints, mountpoints, 741bad0001eSAlexander Ivanov mounts, errp); 742bad0001eSAlexander Ivanov 743bad0001eSAlexander Ivanov free_fs_mount_list(&mounts); 744bad0001eSAlexander Ivanov /* We may not issue any FIFREEZE here. 745bad0001eSAlexander Ivanov * Just unset ga_state here and ready for the next call. 746bad0001eSAlexander Ivanov */ 747bad0001eSAlexander Ivanov if (ret == 0) { 748bad0001eSAlexander Ivanov ga_unset_frozen(ga_state); 749bad0001eSAlexander Ivanov } else if (ret < 0) { 750bad0001eSAlexander Ivanov qmp_guest_fsfreeze_thaw(NULL); 751bad0001eSAlexander Ivanov } 752bad0001eSAlexander Ivanov return ret; 753bad0001eSAlexander Ivanov } 754bad0001eSAlexander Ivanov 755bad0001eSAlexander Ivanov int64_t qmp_guest_fsfreeze_thaw(Error **errp) 756bad0001eSAlexander Ivanov { 757bad0001eSAlexander Ivanov int ret; 758bad0001eSAlexander Ivanov 759bad0001eSAlexander Ivanov ret = qmp_guest_fsfreeze_do_thaw(errp); 760bad0001eSAlexander Ivanov if (ret >= 0) { 761bad0001eSAlexander Ivanov ga_unset_frozen(ga_state); 762bad0001eSAlexander Ivanov execute_fsfreeze_hook(FSFREEZE_HOOK_THAW, errp); 763bad0001eSAlexander Ivanov } else { 764bad0001eSAlexander Ivanov ret = 0; 765bad0001eSAlexander Ivanov } 766bad0001eSAlexander Ivanov 767bad0001eSAlexander Ivanov return ret; 768bad0001eSAlexander Ivanov } 769bad0001eSAlexander Ivanov 770bad0001eSAlexander Ivanov static void guest_fsfreeze_cleanup(void) 771bad0001eSAlexander Ivanov { 772bad0001eSAlexander Ivanov Error *err = NULL; 773bad0001eSAlexander Ivanov 774bad0001eSAlexander Ivanov if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 775bad0001eSAlexander Ivanov qmp_guest_fsfreeze_thaw(&err); 776bad0001eSAlexander Ivanov if (err) { 777bad0001eSAlexander Ivanov slog("failed to clean up frozen filesystems: %s", 778bad0001eSAlexander Ivanov error_get_pretty(err)); 779bad0001eSAlexander Ivanov error_free(err); 780bad0001eSAlexander Ivanov } 781bad0001eSAlexander Ivanov } 782bad0001eSAlexander Ivanov } 783bad0001eSAlexander Ivanov #endif 784bad0001eSAlexander Ivanov 785bad0001eSAlexander Ivanov /* linux-specific implementations. avoid this if at all possible. */ 786bad0001eSAlexander Ivanov #if defined(__linux__) 787bad0001eSAlexander Ivanov #if defined(CONFIG_FSFREEZE) 788c216e5adSMichael Roth 78946d4c572STomoki Sekiyama static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) 79046d4c572STomoki Sekiyama { 79146d4c572STomoki Sekiyama char *path; 79246d4c572STomoki Sekiyama char *dpath; 79346d4c572STomoki Sekiyama char *driver = NULL; 79446d4c572STomoki Sekiyama char buf[PATH_MAX]; 79546d4c572STomoki Sekiyama ssize_t len; 79646d4c572STomoki Sekiyama 79746d4c572STomoki Sekiyama path = g_strndup(syspath, pathlen); 79846d4c572STomoki Sekiyama dpath = g_strdup_printf("%s/driver", path); 79946d4c572STomoki Sekiyama len = readlink(dpath, buf, sizeof(buf) - 1); 80046d4c572STomoki Sekiyama if (len != -1) { 80146d4c572STomoki Sekiyama buf[len] = 0; 8023e015d81SJulia Suvorova driver = g_path_get_basename(buf); 80346d4c572STomoki Sekiyama } 80446d4c572STomoki Sekiyama g_free(dpath); 80546d4c572STomoki Sekiyama g_free(path); 80646d4c572STomoki Sekiyama return driver; 80746d4c572STomoki Sekiyama } 80846d4c572STomoki Sekiyama 80946d4c572STomoki Sekiyama static int compare_uint(const void *_a, const void *_b) 81046d4c572STomoki Sekiyama { 81146d4c572STomoki Sekiyama unsigned int a = *(unsigned int *)_a; 81246d4c572STomoki Sekiyama unsigned int b = *(unsigned int *)_b; 81346d4c572STomoki Sekiyama 81446d4c572STomoki Sekiyama return a < b ? -1 : a > b ? 1 : 0; 81546d4c572STomoki Sekiyama } 81646d4c572STomoki Sekiyama 81746d4c572STomoki Sekiyama /* Walk the specified sysfs and build a sorted list of host or ata numbers */ 81846d4c572STomoki Sekiyama static int build_hosts(char const *syspath, char const *host, bool ata, 81946d4c572STomoki Sekiyama unsigned int *hosts, int hosts_max, Error **errp) 82046d4c572STomoki Sekiyama { 82146d4c572STomoki Sekiyama char *path; 82246d4c572STomoki Sekiyama DIR *dir; 82346d4c572STomoki Sekiyama struct dirent *entry; 82446d4c572STomoki Sekiyama int i = 0; 82546d4c572STomoki Sekiyama 82646d4c572STomoki Sekiyama path = g_strndup(syspath, host - syspath); 82746d4c572STomoki Sekiyama dir = opendir(path); 82846d4c572STomoki Sekiyama if (!dir) { 82946d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", path); 83046d4c572STomoki Sekiyama g_free(path); 83146d4c572STomoki Sekiyama return -1; 83246d4c572STomoki Sekiyama } 83346d4c572STomoki Sekiyama 83446d4c572STomoki Sekiyama while (i < hosts_max) { 83546d4c572STomoki Sekiyama entry = readdir(dir); 83646d4c572STomoki Sekiyama if (!entry) { 83746d4c572STomoki Sekiyama break; 83846d4c572STomoki Sekiyama } 83946d4c572STomoki Sekiyama if (ata && sscanf(entry->d_name, "ata%d", hosts + i) == 1) { 84046d4c572STomoki Sekiyama ++i; 84146d4c572STomoki Sekiyama } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) == 1) { 84246d4c572STomoki Sekiyama ++i; 84346d4c572STomoki Sekiyama } 84446d4c572STomoki Sekiyama } 84546d4c572STomoki Sekiyama 84646d4c572STomoki Sekiyama qsort(hosts, i, sizeof(hosts[0]), compare_uint); 84746d4c572STomoki Sekiyama 84846d4c572STomoki Sekiyama g_free(path); 84946d4c572STomoki Sekiyama closedir(dir); 85046d4c572STomoki Sekiyama return i; 85146d4c572STomoki Sekiyama } 85246d4c572STomoki Sekiyama 853d9fe4f0fSThomas Huth /* 854d9fe4f0fSThomas Huth * Store disk device info for devices on the PCI bus. 855d9fe4f0fSThomas Huth * Returns true if information has been stored, or false for failure. 856d9fe4f0fSThomas Huth */ 857d9fe4f0fSThomas Huth static bool build_guest_fsinfo_for_pci_dev(char const *syspath, 858d9fe4f0fSThomas Huth GuestDiskAddress *disk, 85946d4c572STomoki Sekiyama Error **errp) 86046d4c572STomoki Sekiyama { 86146d4c572STomoki Sekiyama unsigned int pci[4], host, hosts[8], tgt[3]; 86246d4c572STomoki Sekiyama int i, nhosts = 0, pcilen; 863d9fe4f0fSThomas Huth GuestPCIAddress *pciaddr = disk->pci_controller; 86446d4c572STomoki Sekiyama bool has_ata = false, has_host = false, has_tgt = false; 86546d4c572STomoki Sekiyama char *p, *q, *driver = NULL; 866d9fe4f0fSThomas Huth bool ret = false; 86746d4c572STomoki Sekiyama 86846d4c572STomoki Sekiyama p = strstr(syspath, "/devices/pci"); 86946d4c572STomoki Sekiyama if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", 87046d4c572STomoki Sekiyama pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { 871743c71d0SMarc-André Lureau g_debug("only pci device is supported: sysfs path '%s'", syspath); 872d9fe4f0fSThomas Huth return false; 87346d4c572STomoki Sekiyama } 87446d4c572STomoki Sekiyama 875743c71d0SMarc-André Lureau p += 12 + pcilen; 876743c71d0SMarc-André Lureau while (true) { 877743c71d0SMarc-André Lureau driver = get_pci_driver(syspath, p - syspath, errp); 878743c71d0SMarc-André Lureau if (driver && (g_str_equal(driver, "ata_piix") || 879743c71d0SMarc-André Lureau g_str_equal(driver, "sym53c8xx") || 880743c71d0SMarc-André Lureau g_str_equal(driver, "virtio-pci") || 881d48f61c8Szhenwei pi g_str_equal(driver, "ahci") || 8825a954e02SKfir Manor g_str_equal(driver, "nvme") || 8835a954e02SKfir Manor g_str_equal(driver, "xhci_hcd") || 8845a954e02SKfir Manor g_str_equal(driver, "ehci-pci"))) { 885743c71d0SMarc-André Lureau break; 886743c71d0SMarc-André Lureau } 887743c71d0SMarc-André Lureau 888bb23a736SMarc-André Lureau g_free(driver); 889743c71d0SMarc-André Lureau if (sscanf(p, "/%x:%x:%x.%x%n", 890743c71d0SMarc-André Lureau pci, pci + 1, pci + 2, pci + 3, &pcilen) == 4) { 891743c71d0SMarc-André Lureau p += pcilen; 892743c71d0SMarc-André Lureau continue; 893743c71d0SMarc-André Lureau } 894743c71d0SMarc-André Lureau 895743c71d0SMarc-André Lureau g_debug("unsupported driver or sysfs path '%s'", syspath); 896d9fe4f0fSThomas Huth return false; 89746d4c572STomoki Sekiyama } 89846d4c572STomoki Sekiyama 89946d4c572STomoki Sekiyama p = strstr(syspath, "/target"); 90046d4c572STomoki Sekiyama if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 90146d4c572STomoki Sekiyama tgt, tgt + 1, tgt + 2) == 3) { 90246d4c572STomoki Sekiyama has_tgt = true; 90346d4c572STomoki Sekiyama } 90446d4c572STomoki Sekiyama 90546d4c572STomoki Sekiyama p = strstr(syspath, "/ata"); 90646d4c572STomoki Sekiyama if (p) { 90746d4c572STomoki Sekiyama q = p + 4; 90846d4c572STomoki Sekiyama has_ata = true; 90946d4c572STomoki Sekiyama } else { 91046d4c572STomoki Sekiyama p = strstr(syspath, "/host"); 91146d4c572STomoki Sekiyama q = p + 5; 91246d4c572STomoki Sekiyama } 91346d4c572STomoki Sekiyama if (p && sscanf(q, "%u", &host) == 1) { 91446d4c572STomoki Sekiyama has_host = true; 91546d4c572STomoki Sekiyama nhosts = build_hosts(syspath, p, has_ata, hosts, 91601a6df1bSPhilippe Mathieu-Daudé ARRAY_SIZE(hosts), errp); 91746d4c572STomoki Sekiyama if (nhosts < 0) { 91846d4c572STomoki Sekiyama goto cleanup; 91946d4c572STomoki Sekiyama } 92046d4c572STomoki Sekiyama } 92146d4c572STomoki Sekiyama 92246d4c572STomoki Sekiyama pciaddr->domain = pci[0]; 92346d4c572STomoki Sekiyama pciaddr->bus = pci[1]; 92446d4c572STomoki Sekiyama pciaddr->slot = pci[2]; 92546d4c572STomoki Sekiyama pciaddr->function = pci[3]; 92646d4c572STomoki Sekiyama 92746d4c572STomoki Sekiyama if (strcmp(driver, "ata_piix") == 0) { 92846d4c572STomoki Sekiyama /* a host per ide bus, target*:0:<unit>:0 */ 92946d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 93046d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 93146d4c572STomoki Sekiyama goto cleanup; 93246d4c572STomoki Sekiyama } 93346d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 93446d4c572STomoki Sekiyama if (host == hosts[i]) { 93546d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_IDE; 93646d4c572STomoki Sekiyama disk->bus = i; 93746d4c572STomoki Sekiyama disk->unit = tgt[1]; 93846d4c572STomoki Sekiyama break; 93946d4c572STomoki Sekiyama } 94046d4c572STomoki Sekiyama } 94146d4c572STomoki Sekiyama if (i >= nhosts) { 94246d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 94346d4c572STomoki Sekiyama goto cleanup; 94446d4c572STomoki Sekiyama } 94546d4c572STomoki Sekiyama } else if (strcmp(driver, "sym53c8xx") == 0) { 94646d4c572STomoki Sekiyama /* scsi(LSI Logic): target*:0:<unit>:0 */ 94746d4c572STomoki Sekiyama if (!has_tgt) { 94846d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 94946d4c572STomoki Sekiyama goto cleanup; 95046d4c572STomoki Sekiyama } 95146d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 95246d4c572STomoki Sekiyama disk->unit = tgt[1]; 95346d4c572STomoki Sekiyama } else if (strcmp(driver, "virtio-pci") == 0) { 95446d4c572STomoki Sekiyama if (has_tgt) { 95546d4c572STomoki Sekiyama /* virtio-scsi: target*:0:0:<unit> */ 95646d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 95746d4c572STomoki Sekiyama disk->unit = tgt[2]; 95846d4c572STomoki Sekiyama } else { 95946d4c572STomoki Sekiyama /* virtio-blk: 1 disk per 1 device */ 96046d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 96146d4c572STomoki Sekiyama } 96246d4c572STomoki Sekiyama } else if (strcmp(driver, "ahci") == 0) { 96346d4c572STomoki Sekiyama /* ahci: 1 host per 1 unit */ 96446d4c572STomoki Sekiyama if (!has_host || !has_tgt) { 96546d4c572STomoki Sekiyama g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driver); 96646d4c572STomoki Sekiyama goto cleanup; 96746d4c572STomoki Sekiyama } 96846d4c572STomoki Sekiyama for (i = 0; i < nhosts; i++) { 96946d4c572STomoki Sekiyama if (host == hosts[i]) { 97046d4c572STomoki Sekiyama disk->unit = i; 97146d4c572STomoki Sekiyama disk->bus_type = GUEST_DISK_BUS_TYPE_SATA; 97246d4c572STomoki Sekiyama break; 97346d4c572STomoki Sekiyama } 97446d4c572STomoki Sekiyama } 97546d4c572STomoki Sekiyama if (i >= nhosts) { 97646d4c572STomoki Sekiyama g_debug("no host for '%s' (driver '%s')", syspath, driver); 97746d4c572STomoki Sekiyama goto cleanup; 97846d4c572STomoki Sekiyama } 979d48f61c8Szhenwei pi } else if (strcmp(driver, "nvme") == 0) { 980d48f61c8Szhenwei pi disk->bus_type = GUEST_DISK_BUS_TYPE_NVME; 9815a954e02SKfir Manor } else if (strcmp(driver, "ehci-pci") == 0 || strcmp(driver, "xhci_hcd") == 0) { 9825a954e02SKfir Manor disk->bus_type = GUEST_DISK_BUS_TYPE_USB; 98346d4c572STomoki Sekiyama } else { 98446d4c572STomoki Sekiyama g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); 98546d4c572STomoki Sekiyama goto cleanup; 98646d4c572STomoki Sekiyama } 98746d4c572STomoki Sekiyama 988d9fe4f0fSThomas Huth ret = true; 98946d4c572STomoki Sekiyama 99046d4c572STomoki Sekiyama cleanup: 99146d4c572STomoki Sekiyama g_free(driver); 992d9fe4f0fSThomas Huth return ret; 993d9fe4f0fSThomas Huth } 994d9fe4f0fSThomas Huth 99523843c12SThomas Huth /* 99623843c12SThomas Huth * Store disk device info for non-PCI virtio devices (for example s390x 99723843c12SThomas Huth * channel I/O devices). Returns true if information has been stored, or 99823843c12SThomas Huth * false for failure. 99923843c12SThomas Huth */ 100023843c12SThomas Huth static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath, 100123843c12SThomas Huth GuestDiskAddress *disk, 100223843c12SThomas Huth Error **errp) 100323843c12SThomas Huth { 100423843c12SThomas Huth unsigned int tgt[3]; 100523843c12SThomas Huth char *p; 100623843c12SThomas Huth 100723843c12SThomas Huth if (!strstr(syspath, "/virtio") || !strstr(syspath, "/block")) { 100823843c12SThomas Huth g_debug("Unsupported virtio device '%s'", syspath); 100923843c12SThomas Huth return false; 101023843c12SThomas Huth } 101123843c12SThomas Huth 101223843c12SThomas Huth p = strstr(syspath, "/target"); 101323843c12SThomas Huth if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", 101423843c12SThomas Huth &tgt[0], &tgt[1], &tgt[2]) == 3) { 101523843c12SThomas Huth /* virtio-scsi: target*:0:<target>:<unit> */ 101623843c12SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI; 101723843c12SThomas Huth disk->bus = tgt[0]; 101823843c12SThomas Huth disk->target = tgt[1]; 101923843c12SThomas Huth disk->unit = tgt[2]; 102023843c12SThomas Huth } else { 102123843c12SThomas Huth /* virtio-blk: 1 disk per 1 device */ 102223843c12SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO; 102323843c12SThomas Huth } 102423843c12SThomas Huth 102523843c12SThomas Huth return true; 102623843c12SThomas Huth } 102723843c12SThomas Huth 10285b723a5dSThomas Huth /* 10295b723a5dSThomas Huth * Store disk device info for CCW devices (s390x channel I/O devices). 10305b723a5dSThomas Huth * Returns true if information has been stored, or false for failure. 10315b723a5dSThomas Huth */ 10325b723a5dSThomas Huth static bool build_guest_fsinfo_for_ccw_dev(char const *syspath, 10335b723a5dSThomas Huth GuestDiskAddress *disk, 10345b723a5dSThomas Huth Error **errp) 10355b723a5dSThomas Huth { 10365b723a5dSThomas Huth unsigned int cssid, ssid, subchno, devno; 10375b723a5dSThomas Huth char *p; 10385b723a5dSThomas Huth 10395b723a5dSThomas Huth p = strstr(syspath, "/devices/css"); 10405b723a5dSThomas Huth if (!p || sscanf(p + 12, "%*x/%x.%x.%x/%*x.%*x.%x/", 10415b723a5dSThomas Huth &cssid, &ssid, &subchno, &devno) < 4) { 10425b723a5dSThomas Huth g_debug("could not parse ccw device sysfs path: %s", syspath); 10435b723a5dSThomas Huth return false; 10445b723a5dSThomas Huth } 10455b723a5dSThomas Huth 10465b723a5dSThomas Huth disk->ccw_address = g_new0(GuestCCWAddress, 1); 10475b723a5dSThomas Huth disk->ccw_address->cssid = cssid; 10485b723a5dSThomas Huth disk->ccw_address->ssid = ssid; 10495b723a5dSThomas Huth disk->ccw_address->subchno = subchno; 10505b723a5dSThomas Huth disk->ccw_address->devno = devno; 10515b723a5dSThomas Huth 10525b723a5dSThomas Huth if (strstr(p, "/virtio")) { 10535b723a5dSThomas Huth build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); 10545b723a5dSThomas Huth } 10555b723a5dSThomas Huth 10565b723a5dSThomas Huth return true; 10575b723a5dSThomas Huth } 10585b723a5dSThomas Huth 1059d9fe4f0fSThomas Huth /* Store disk device info specified by @sysfs into @fs */ 1060d9fe4f0fSThomas Huth static void build_guest_fsinfo_for_real_device(char const *syspath, 1061d9fe4f0fSThomas Huth GuestFilesystemInfo *fs, 1062d9fe4f0fSThomas Huth Error **errp) 1063d9fe4f0fSThomas Huth { 1064d9fe4f0fSThomas Huth GuestDiskAddress *disk; 1065d9fe4f0fSThomas Huth GuestPCIAddress *pciaddr; 1066d9fe4f0fSThomas Huth bool has_hwinf; 106743dadc43SThomas Huth #ifdef CONFIG_LIBUDEV 106843dadc43SThomas Huth struct udev *udev = NULL; 106943dadc43SThomas Huth struct udev_device *udevice = NULL; 107043dadc43SThomas Huth #endif 1071d9fe4f0fSThomas Huth 1072d9fe4f0fSThomas Huth pciaddr = g_new0(GuestPCIAddress, 1); 107343dadc43SThomas Huth pciaddr->domain = -1; /* -1 means field is invalid */ 107443dadc43SThomas Huth pciaddr->bus = -1; 107543dadc43SThomas Huth pciaddr->slot = -1; 107643dadc43SThomas Huth pciaddr->function = -1; 1077d9fe4f0fSThomas Huth 1078d9fe4f0fSThomas Huth disk = g_new0(GuestDiskAddress, 1); 1079d9fe4f0fSThomas Huth disk->pci_controller = pciaddr; 108043dadc43SThomas Huth disk->bus_type = GUEST_DISK_BUS_TYPE_UNKNOWN; 1081d9fe4f0fSThomas Huth 108243dadc43SThomas Huth #ifdef CONFIG_LIBUDEV 108343dadc43SThomas Huth udev = udev_new(); 108443dadc43SThomas Huth udevice = udev_device_new_from_syspath(udev, syspath); 108543dadc43SThomas Huth if (udev == NULL || udevice == NULL) { 108643dadc43SThomas Huth g_debug("failed to query udev"); 108743dadc43SThomas Huth } else { 108843dadc43SThomas Huth const char *devnode, *serial; 108943dadc43SThomas Huth devnode = udev_device_get_devnode(udevice); 109043dadc43SThomas Huth if (devnode != NULL) { 109143dadc43SThomas Huth disk->dev = g_strdup(devnode); 109243dadc43SThomas Huth } 109343dadc43SThomas Huth serial = udev_device_get_property_value(udevice, "ID_SERIAL"); 109443dadc43SThomas Huth if (serial != NULL && *serial != 0) { 109543dadc43SThomas Huth disk->serial = g_strdup(serial); 109643dadc43SThomas Huth } 109743dadc43SThomas Huth } 109843dadc43SThomas Huth 109943dadc43SThomas Huth udev_unref(udev); 110043dadc43SThomas Huth udev_device_unref(udevice); 110143dadc43SThomas Huth #endif 110243dadc43SThomas Huth 110323843c12SThomas Huth if (strstr(syspath, "/devices/pci")) { 1104d9fe4f0fSThomas Huth has_hwinf = build_guest_fsinfo_for_pci_dev(syspath, disk, errp); 11055b723a5dSThomas Huth } else if (strstr(syspath, "/devices/css")) { 11065b723a5dSThomas Huth has_hwinf = build_guest_fsinfo_for_ccw_dev(syspath, disk, errp); 110723843c12SThomas Huth } else if (strstr(syspath, "/virtio")) { 110823843c12SThomas Huth has_hwinf = build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); 110923843c12SThomas Huth } else { 111023843c12SThomas Huth g_debug("Unsupported device type for '%s'", syspath); 111123843c12SThomas Huth has_hwinf = false; 111223843c12SThomas Huth } 1113d9fe4f0fSThomas Huth 111491eab32aSMarkus Armbruster if (has_hwinf || disk->dev || disk->serial) { 111554aa3de7SEric Blake QAPI_LIST_PREPEND(fs->disk, disk); 1116d9fe4f0fSThomas Huth } else { 111754aa3de7SEric Blake qapi_free_GuestDiskAddress(disk); 1118d9fe4f0fSThomas Huth } 111946d4c572STomoki Sekiyama } 112046d4c572STomoki Sekiyama 112146d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 112246d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 112346d4c572STomoki Sekiyama Error **errp); 112446d4c572STomoki Sekiyama 112546d4c572STomoki Sekiyama /* Store a list of slave devices of virtual volume specified by @syspath into 112646d4c572STomoki Sekiyama * @fs */ 112746d4c572STomoki Sekiyama static void build_guest_fsinfo_for_virtual_device(char const *syspath, 112846d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 112946d4c572STomoki Sekiyama Error **errp) 113046d4c572STomoki Sekiyama { 1131292743d9SMarkus Armbruster Error *err = NULL; 113246d4c572STomoki Sekiyama DIR *dir; 113346d4c572STomoki Sekiyama char *dirpath; 1134e668d1b8Szhanghailiang struct dirent *entry; 113546d4c572STomoki Sekiyama 113646d4c572STomoki Sekiyama dirpath = g_strdup_printf("%s/slaves", syspath); 113746d4c572STomoki Sekiyama dir = opendir(dirpath); 113846d4c572STomoki Sekiyama if (!dir) { 11398251a72fSMichael Roth if (errno != ENOENT) { 114046d4c572STomoki Sekiyama error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); 11418251a72fSMichael Roth } 114246d4c572STomoki Sekiyama g_free(dirpath); 114346d4c572STomoki Sekiyama return; 114446d4c572STomoki Sekiyama } 114546d4c572STomoki Sekiyama 114646d4c572STomoki Sekiyama for (;;) { 1147e668d1b8Szhanghailiang errno = 0; 1148e668d1b8Szhanghailiang entry = readdir(dir); 1149e668d1b8Szhanghailiang if (entry == NULL) { 1150e668d1b8Szhanghailiang if (errno) { 1151e668d1b8Szhanghailiang error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); 115246d4c572STomoki Sekiyama } 115346d4c572STomoki Sekiyama break; 115446d4c572STomoki Sekiyama } 115546d4c572STomoki Sekiyama 1156e668d1b8Szhanghailiang if (entry->d_type == DT_LNK) { 1157e668d1b8Szhanghailiang char *path; 1158e668d1b8Szhanghailiang 1159e668d1b8Szhanghailiang g_debug(" slave device '%s'", entry->d_name); 1160e668d1b8Szhanghailiang path = g_strdup_printf("%s/slaves/%s", syspath, entry->d_name); 1161292743d9SMarkus Armbruster build_guest_fsinfo_for_device(path, fs, &err); 1162e668d1b8Szhanghailiang g_free(path); 116346d4c572STomoki Sekiyama 1164292743d9SMarkus Armbruster if (err) { 1165292743d9SMarkus Armbruster error_propagate(errp, err); 116646d4c572STomoki Sekiyama break; 116746d4c572STomoki Sekiyama } 116846d4c572STomoki Sekiyama } 116946d4c572STomoki Sekiyama } 117046d4c572STomoki Sekiyama 1171e668d1b8Szhanghailiang g_free(dirpath); 117246d4c572STomoki Sekiyama closedir(dir); 117346d4c572STomoki Sekiyama } 117446d4c572STomoki Sekiyama 1175fed39564STomáš Golembiovský static bool is_disk_virtual(const char *devpath, Error **errp) 1176fed39564STomáš Golembiovský { 1177fed39564STomáš Golembiovský g_autofree char *syspath = realpath(devpath, NULL); 1178fed39564STomáš Golembiovský 1179fed39564STomáš Golembiovský if (!syspath) { 1180fed39564STomáš Golembiovský error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 1181fed39564STomáš Golembiovský return false; 1182fed39564STomáš Golembiovský } 1183fed39564STomáš Golembiovský return strstr(syspath, "/devices/virtual/block/") != NULL; 1184fed39564STomáš Golembiovský } 1185fed39564STomáš Golembiovský 118646d4c572STomoki Sekiyama /* Dispatch to functions for virtual/real device */ 118746d4c572STomoki Sekiyama static void build_guest_fsinfo_for_device(char const *devpath, 118846d4c572STomoki Sekiyama GuestFilesystemInfo *fs, 118946d4c572STomoki Sekiyama Error **errp) 119046d4c572STomoki Sekiyama { 1191fed39564STomáš Golembiovský ERRP_GUARD(); 1192fed39564STomáš Golembiovský g_autofree char *syspath = NULL; 1193fed39564STomáš Golembiovský bool is_virtual = false; 119446d4c572STomoki Sekiyama 1195fed39564STomáš Golembiovský syspath = realpath(devpath, NULL); 119646d4c572STomoki Sekiyama if (!syspath) { 1197bbb0151cSJohn Snow if (errno != ENOENT) { 119846d4c572STomoki Sekiyama error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); 119946d4c572STomoki Sekiyama return; 120046d4c572STomoki Sekiyama } 120146d4c572STomoki Sekiyama 1202bbb0151cSJohn Snow /* ENOENT: This devpath may not exist because of container config */ 1203bbb0151cSJohn Snow if (!fs->name) { 1204bbb0151cSJohn Snow fs->name = g_path_get_basename(devpath); 1205bbb0151cSJohn Snow } 1206bbb0151cSJohn Snow return; 1207bbb0151cSJohn Snow } 1208bbb0151cSJohn Snow 120946d4c572STomoki Sekiyama if (!fs->name) { 12103e015d81SJulia Suvorova fs->name = g_path_get_basename(syspath); 121146d4c572STomoki Sekiyama } 121246d4c572STomoki Sekiyama 121346d4c572STomoki Sekiyama g_debug(" parse sysfs path '%s'", syspath); 1214fed39564STomáš Golembiovský is_virtual = is_disk_virtual(syspath, errp); 1215fed39564STomáš Golembiovský if (*errp != NULL) { 1216fed39564STomáš Golembiovský return; 1217fed39564STomáš Golembiovský } 1218fed39564STomáš Golembiovský if (is_virtual) { 121946d4c572STomoki Sekiyama build_guest_fsinfo_for_virtual_device(syspath, fs, errp); 122046d4c572STomoki Sekiyama } else { 122146d4c572STomoki Sekiyama build_guest_fsinfo_for_real_device(syspath, fs, errp); 122246d4c572STomoki Sekiyama } 122346d4c572STomoki Sekiyama } 122446d4c572STomoki Sekiyama 1225fed39564STomáš Golembiovský #ifdef CONFIG_LIBUDEV 1226fed39564STomáš Golembiovský 1227fed39564STomáš Golembiovský /* 1228fed39564STomáš Golembiovský * Wrapper around build_guest_fsinfo_for_device() for getting just 1229fed39564STomáš Golembiovský * the disk address. 1230fed39564STomáš Golembiovský */ 1231fed39564STomáš Golembiovský static GuestDiskAddress *get_disk_address(const char *syspath, Error **errp) 1232fed39564STomáš Golembiovský { 1233fed39564STomáš Golembiovský g_autoptr(GuestFilesystemInfo) fs = NULL; 1234fed39564STomáš Golembiovský 1235fed39564STomáš Golembiovský fs = g_new0(GuestFilesystemInfo, 1); 1236fed39564STomáš Golembiovský build_guest_fsinfo_for_device(syspath, fs, errp); 1237fed39564STomáš Golembiovský if (fs->disk != NULL) { 1238fed39564STomáš Golembiovský return g_steal_pointer(&fs->disk->value); 1239fed39564STomáš Golembiovský } 1240fed39564STomáš Golembiovský return NULL; 1241fed39564STomáš Golembiovský } 1242fed39564STomáš Golembiovský 1243fed39564STomáš Golembiovský static char *get_alias_for_syspath(const char *syspath) 1244fed39564STomáš Golembiovský { 1245fed39564STomáš Golembiovský struct udev *udev = NULL; 1246fed39564STomáš Golembiovský struct udev_device *udevice = NULL; 1247fed39564STomáš Golembiovský char *ret = NULL; 1248fed39564STomáš Golembiovský 1249fed39564STomáš Golembiovský udev = udev_new(); 1250fed39564STomáš Golembiovský if (udev == NULL) { 1251fed39564STomáš Golembiovský g_debug("failed to query udev"); 1252fed39564STomáš Golembiovský goto out; 1253fed39564STomáš Golembiovský } 1254fed39564STomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 1255fed39564STomáš Golembiovský if (udevice == NULL) { 1256fed39564STomáš Golembiovský g_debug("failed to query udev for path: %s", syspath); 1257fed39564STomáš Golembiovský goto out; 1258fed39564STomáš Golembiovský } else { 1259fed39564STomáš Golembiovský const char *alias = udev_device_get_property_value( 1260fed39564STomáš Golembiovský udevice, "DM_NAME"); 1261fed39564STomáš Golembiovský /* 1262fed39564STomáš Golembiovský * NULL means there was an error and empty string means there is no 1263fed39564STomáš Golembiovský * alias. In case of no alias we return NULL instead of empty string. 1264fed39564STomáš Golembiovský */ 1265fed39564STomáš Golembiovský if (alias == NULL) { 1266fed39564STomáš Golembiovský g_debug("failed to query udev for device alias for: %s", 1267fed39564STomáš Golembiovský syspath); 1268fed39564STomáš Golembiovský } else if (*alias != 0) { 1269fed39564STomáš Golembiovský ret = g_strdup(alias); 1270fed39564STomáš Golembiovský } 1271fed39564STomáš Golembiovský } 1272fed39564STomáš Golembiovský 1273fed39564STomáš Golembiovský out: 1274fed39564STomáš Golembiovský udev_unref(udev); 1275fed39564STomáš Golembiovský udev_device_unref(udevice); 1276fed39564STomáš Golembiovský return ret; 1277fed39564STomáš Golembiovský } 1278fed39564STomáš Golembiovský 1279fed39564STomáš Golembiovský static char *get_device_for_syspath(const char *syspath) 1280fed39564STomáš Golembiovský { 1281fed39564STomáš Golembiovský struct udev *udev = NULL; 1282fed39564STomáš Golembiovský struct udev_device *udevice = NULL; 1283fed39564STomáš Golembiovský char *ret = NULL; 1284fed39564STomáš Golembiovský 1285fed39564STomáš Golembiovský udev = udev_new(); 1286fed39564STomáš Golembiovský if (udev == NULL) { 1287fed39564STomáš Golembiovský g_debug("failed to query udev"); 1288fed39564STomáš Golembiovský goto out; 1289fed39564STomáš Golembiovský } 1290fed39564STomáš Golembiovský udevice = udev_device_new_from_syspath(udev, syspath); 1291fed39564STomáš Golembiovský if (udevice == NULL) { 1292fed39564STomáš Golembiovský g_debug("failed to query udev for path: %s", syspath); 1293fed39564STomáš Golembiovský goto out; 1294fed39564STomáš Golembiovský } else { 1295fed39564STomáš Golembiovský ret = g_strdup(udev_device_get_devnode(udevice)); 1296fed39564STomáš Golembiovský } 1297fed39564STomáš Golembiovský 1298fed39564STomáš Golembiovský out: 1299fed39564STomáš Golembiovský udev_unref(udev); 1300fed39564STomáš Golembiovský udev_device_unref(udevice); 1301fed39564STomáš Golembiovský return ret; 1302fed39564STomáš Golembiovský } 1303fed39564STomáš Golembiovský 1304fed39564STomáš Golembiovský static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) 1305fed39564STomáš Golembiovský { 1306fed39564STomáš Golembiovský g_autofree char *deps_dir = NULL; 1307fed39564STomáš Golembiovský const gchar *dep; 1308fed39564STomáš Golembiovský GDir *dp_deps = NULL; 1309fed39564STomáš Golembiovský 1310fed39564STomáš Golembiovský /* List dependent disks */ 1311fed39564STomáš Golembiovský deps_dir = g_strdup_printf("%s/slaves", disk_dir); 1312fed39564STomáš Golembiovský g_debug(" listing entries in: %s", deps_dir); 1313fed39564STomáš Golembiovský dp_deps = g_dir_open(deps_dir, 0, NULL); 1314fed39564STomáš Golembiovský if (dp_deps == NULL) { 1315fed39564STomáš Golembiovský g_debug("failed to list entries in %s", deps_dir); 1316fed39564STomáš Golembiovský return; 1317fed39564STomáš Golembiovský } 1318a8aa94b5SMichael Roth disk->has_dependencies = true; 1319fed39564STomáš Golembiovský while ((dep = g_dir_read_name(dp_deps)) != NULL) { 1320fed39564STomáš Golembiovský g_autofree char *dep_dir = NULL; 1321fed39564STomáš Golembiovský char *dev_name; 1322fed39564STomáš Golembiovský 1323fed39564STomáš Golembiovský /* Add dependent disks */ 1324fed39564STomáš Golembiovský dep_dir = g_strdup_printf("%s/%s", deps_dir, dep); 1325fed39564STomáš Golembiovský dev_name = get_device_for_syspath(dep_dir); 1326fed39564STomáš Golembiovský if (dev_name != NULL) { 1327fed39564STomáš Golembiovský g_debug(" adding dependent device: %s", dev_name); 132854aa3de7SEric Blake QAPI_LIST_PREPEND(disk->dependencies, dev_name); 1329fed39564STomáš Golembiovský } 1330fed39564STomáš Golembiovský } 1331fed39564STomáš Golembiovský g_dir_close(dp_deps); 1332fed39564STomáš Golembiovský } 1333fed39564STomáš Golembiovský 1334fed39564STomáš Golembiovský /* 1335fed39564STomáš Golembiovský * Detect partitions subdirectory, name is "<disk_name><number>" or 1336fed39564STomáš Golembiovský * "<disk_name>p<number>" 1337fed39564STomáš Golembiovský * 1338fed39564STomáš Golembiovský * @disk_name -- last component of /sys path (e.g. sda) 1339fed39564STomáš Golembiovský * @disk_dir -- sys path of the disk (e.g. /sys/block/sda) 1340fed39564STomáš Golembiovský * @disk_dev -- device node of the disk (e.g. /dev/sda) 1341fed39564STomáš Golembiovský */ 1342fed39564STomáš Golembiovský static GuestDiskInfoList *get_disk_partitions( 1343fed39564STomáš Golembiovský GuestDiskInfoList *list, 1344fed39564STomáš Golembiovský const char *disk_name, const char *disk_dir, 1345fed39564STomáš Golembiovský const char *disk_dev) 1346fed39564STomáš Golembiovský { 134754aa3de7SEric Blake GuestDiskInfoList *ret = list; 1348fed39564STomáš Golembiovský struct dirent *de_disk; 1349fed39564STomáš Golembiovský DIR *dp_disk = NULL; 1350fed39564STomáš Golembiovský size_t len = strlen(disk_name); 1351fed39564STomáš Golembiovský 1352fed39564STomáš Golembiovský dp_disk = opendir(disk_dir); 1353fed39564STomáš Golembiovský while ((de_disk = readdir(dp_disk)) != NULL) { 1354fed39564STomáš Golembiovský g_autofree char *partition_dir = NULL; 1355fed39564STomáš Golembiovský char *dev_name; 1356fed39564STomáš Golembiovský GuestDiskInfo *partition; 1357fed39564STomáš Golembiovský 1358fed39564STomáš Golembiovský if (!(de_disk->d_type & DT_DIR)) { 1359fed39564STomáš Golembiovský continue; 1360fed39564STomáš Golembiovský } 1361fed39564STomáš Golembiovský 1362fed39564STomáš Golembiovský if (!(strncmp(disk_name, de_disk->d_name, len) == 0 && 1363fed39564STomáš Golembiovský ((*(de_disk->d_name + len) == 'p' && 1364fed39564STomáš Golembiovský isdigit(*(de_disk->d_name + len + 1))) || 1365fed39564STomáš Golembiovský isdigit(*(de_disk->d_name + len))))) { 1366fed39564STomáš Golembiovský continue; 1367fed39564STomáš Golembiovský } 1368fed39564STomáš Golembiovský 1369fed39564STomáš Golembiovský partition_dir = g_strdup_printf("%s/%s", 1370fed39564STomáš Golembiovský disk_dir, de_disk->d_name); 1371fed39564STomáš Golembiovský dev_name = get_device_for_syspath(partition_dir); 1372fed39564STomáš Golembiovský if (dev_name == NULL) { 1373fed39564STomáš Golembiovský g_debug("Failed to get device name for syspath: %s", 1374fed39564STomáš Golembiovský disk_dir); 1375fed39564STomáš Golembiovský continue; 1376fed39564STomáš Golembiovský } 1377fed39564STomáš Golembiovský partition = g_new0(GuestDiskInfo, 1); 1378fed39564STomáš Golembiovský partition->name = dev_name; 1379fed39564STomáš Golembiovský partition->partition = true; 1380bac9b87bSMarc-André Lureau partition->has_dependencies = true; 1381fed39564STomáš Golembiovský /* Add parent disk as dependent for easier tracking of hierarchy */ 138254aa3de7SEric Blake QAPI_LIST_PREPEND(partition->dependencies, g_strdup(disk_dev)); 1383fed39564STomáš Golembiovský 138454aa3de7SEric Blake QAPI_LIST_PREPEND(ret, partition); 1385fed39564STomáš Golembiovský } 1386fed39564STomáš Golembiovský closedir(dp_disk); 1387fed39564STomáš Golembiovský 1388fed39564STomáš Golembiovský return ret; 1389fed39564STomáš Golembiovský } 1390fed39564STomáš Golembiovský 139122668881Szhenwei pi static void get_nvme_smart(GuestDiskInfo *disk) 139222668881Szhenwei pi { 139322668881Szhenwei pi int fd; 139422668881Szhenwei pi GuestNVMeSmart *smart; 139522668881Szhenwei pi NvmeSmartLog log = {0}; 139622668881Szhenwei pi struct nvme_admin_cmd cmd = { 139722668881Szhenwei pi .opcode = NVME_ADM_CMD_GET_LOG_PAGE, 139822668881Szhenwei pi .nsid = NVME_NSID_BROADCAST, 139922668881Szhenwei pi .addr = (uintptr_t)&log, 140022668881Szhenwei pi .data_len = sizeof(log), 140122668881Szhenwei pi .cdw10 = NVME_LOG_SMART_INFO | (1 << 15) /* RAE bit */ 140222668881Szhenwei pi | (((sizeof(log) >> 2) - 1) << 16) 140322668881Szhenwei pi }; 140422668881Szhenwei pi 1405b9947c9cSMarc-André Lureau fd = qga_open_cloexec(disk->name, O_RDONLY, 0); 140622668881Szhenwei pi if (fd == -1) { 140722668881Szhenwei pi g_debug("Failed to open device: %s: %s", disk->name, g_strerror(errno)); 140822668881Szhenwei pi return; 140922668881Szhenwei pi } 141022668881Szhenwei pi 141122668881Szhenwei pi if (ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd)) { 141222668881Szhenwei pi g_debug("Failed to get smart: %s: %s", disk->name, g_strerror(errno)); 141322668881Szhenwei pi close(fd); 141422668881Szhenwei pi return; 141522668881Szhenwei pi } 141622668881Szhenwei pi 141722668881Szhenwei pi disk->smart = g_new0(GuestDiskSmart, 1); 141822668881Szhenwei pi disk->smart->type = GUEST_DISK_BUS_TYPE_NVME; 141922668881Szhenwei pi 142022668881Szhenwei pi smart = &disk->smart->u.nvme; 142122668881Szhenwei pi smart->critical_warning = log.critical_warning; 142222668881Szhenwei pi smart->temperature = lduw_le_p(&log.temperature); /* unaligned field */ 142322668881Szhenwei pi smart->available_spare = log.available_spare; 142422668881Szhenwei pi smart->available_spare_threshold = log.available_spare_threshold; 142522668881Szhenwei pi smart->percentage_used = log.percentage_used; 142622668881Szhenwei pi smart->data_units_read_lo = le64_to_cpu(log.data_units_read[0]); 142722668881Szhenwei pi smart->data_units_read_hi = le64_to_cpu(log.data_units_read[1]); 142822668881Szhenwei pi smart->data_units_written_lo = le64_to_cpu(log.data_units_written[0]); 142922668881Szhenwei pi smart->data_units_written_hi = le64_to_cpu(log.data_units_written[1]); 143022668881Szhenwei pi smart->host_read_commands_lo = le64_to_cpu(log.host_read_commands[0]); 143122668881Szhenwei pi smart->host_read_commands_hi = le64_to_cpu(log.host_read_commands[1]); 143222668881Szhenwei pi smart->host_write_commands_lo = le64_to_cpu(log.host_write_commands[0]); 143322668881Szhenwei pi smart->host_write_commands_hi = le64_to_cpu(log.host_write_commands[1]); 143422668881Szhenwei pi smart->controller_busy_time_lo = le64_to_cpu(log.controller_busy_time[0]); 143522668881Szhenwei pi smart->controller_busy_time_hi = le64_to_cpu(log.controller_busy_time[1]); 143622668881Szhenwei pi smart->power_cycles_lo = le64_to_cpu(log.power_cycles[0]); 143722668881Szhenwei pi smart->power_cycles_hi = le64_to_cpu(log.power_cycles[1]); 143822668881Szhenwei pi smart->power_on_hours_lo = le64_to_cpu(log.power_on_hours[0]); 143922668881Szhenwei pi smart->power_on_hours_hi = le64_to_cpu(log.power_on_hours[1]); 144022668881Szhenwei pi smart->unsafe_shutdowns_lo = le64_to_cpu(log.unsafe_shutdowns[0]); 144122668881Szhenwei pi smart->unsafe_shutdowns_hi = le64_to_cpu(log.unsafe_shutdowns[1]); 144222668881Szhenwei pi smart->media_errors_lo = le64_to_cpu(log.media_errors[0]); 144322668881Szhenwei pi smart->media_errors_hi = le64_to_cpu(log.media_errors[1]); 144422668881Szhenwei pi smart->number_of_error_log_entries_lo = 144522668881Szhenwei pi le64_to_cpu(log.number_of_error_log_entries[0]); 144622668881Szhenwei pi smart->number_of_error_log_entries_hi = 144722668881Szhenwei pi le64_to_cpu(log.number_of_error_log_entries[1]); 144822668881Szhenwei pi 144922668881Szhenwei pi close(fd); 145022668881Szhenwei pi } 145122668881Szhenwei pi 145222668881Szhenwei pi static void get_disk_smart(GuestDiskInfo *disk) 145322668881Szhenwei pi { 145491eab32aSMarkus Armbruster if (disk->address 145522668881Szhenwei pi && (disk->address->bus_type == GUEST_DISK_BUS_TYPE_NVME)) { 145622668881Szhenwei pi get_nvme_smart(disk); 145722668881Szhenwei pi } 145822668881Szhenwei pi } 145922668881Szhenwei pi 1460fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1461fed39564STomáš Golembiovský { 146254aa3de7SEric Blake GuestDiskInfoList *ret = NULL; 1463fed39564STomáš Golembiovský GuestDiskInfo *disk; 1464fed39564STomáš Golembiovský DIR *dp = NULL; 1465fed39564STomáš Golembiovský struct dirent *de = NULL; 1466fed39564STomáš Golembiovský 1467fed39564STomáš Golembiovský g_debug("listing /sys/block directory"); 1468fed39564STomáš Golembiovský dp = opendir("/sys/block"); 1469fed39564STomáš Golembiovský if (dp == NULL) { 1470fed39564STomáš Golembiovský error_setg_errno(errp, errno, "Can't open directory \"/sys/block\""); 1471fed39564STomáš Golembiovský return NULL; 1472fed39564STomáš Golembiovský } 1473fed39564STomáš Golembiovský while ((de = readdir(dp)) != NULL) { 1474fed39564STomáš Golembiovský g_autofree char *disk_dir = NULL, *line = NULL, 1475fed39564STomáš Golembiovský *size_path = NULL; 1476fed39564STomáš Golembiovský char *dev_name; 1477fed39564STomáš Golembiovský Error *local_err = NULL; 1478fed39564STomáš Golembiovský if (de->d_type != DT_LNK) { 1479fed39564STomáš Golembiovský g_debug(" skipping entry: %s", de->d_name); 1480fed39564STomáš Golembiovský continue; 1481fed39564STomáš Golembiovský } 1482fed39564STomáš Golembiovský 1483fed39564STomáš Golembiovský /* Check size and skip zero-sized disks */ 1484fed39564STomáš Golembiovský g_debug(" checking disk size"); 1485fed39564STomáš Golembiovský size_path = g_strdup_printf("/sys/block/%s/size", de->d_name); 1486fed39564STomáš Golembiovský if (!g_file_get_contents(size_path, &line, NULL, NULL)) { 1487fed39564STomáš Golembiovský g_debug(" failed to read disk size"); 1488fed39564STomáš Golembiovský continue; 1489fed39564STomáš Golembiovský } 1490fed39564STomáš Golembiovský if (g_strcmp0(line, "0\n") == 0) { 1491fed39564STomáš Golembiovský g_debug(" skipping zero-sized disk"); 1492fed39564STomáš Golembiovský continue; 1493fed39564STomáš Golembiovský } 1494fed39564STomáš Golembiovský 1495fed39564STomáš Golembiovský g_debug(" adding %s", de->d_name); 1496fed39564STomáš Golembiovský disk_dir = g_strdup_printf("/sys/block/%s", de->d_name); 1497fed39564STomáš Golembiovský dev_name = get_device_for_syspath(disk_dir); 1498fed39564STomáš Golembiovský if (dev_name == NULL) { 1499fed39564STomáš Golembiovský g_debug("Failed to get device name for syspath: %s", 1500fed39564STomáš Golembiovský disk_dir); 1501fed39564STomáš Golembiovský continue; 1502fed39564STomáš Golembiovský } 1503fed39564STomáš Golembiovský disk = g_new0(GuestDiskInfo, 1); 1504fed39564STomáš Golembiovský disk->name = dev_name; 1505fed39564STomáš Golembiovský disk->partition = false; 1506fed39564STomáš Golembiovský disk->alias = get_alias_for_syspath(disk_dir); 150754aa3de7SEric Blake QAPI_LIST_PREPEND(ret, disk); 1508fed39564STomáš Golembiovský 1509fed39564STomáš Golembiovský /* Get address for non-virtual devices */ 1510fed39564STomáš Golembiovský bool is_virtual = is_disk_virtual(disk_dir, &local_err); 1511fed39564STomáš Golembiovský if (local_err != NULL) { 1512fed39564STomáš Golembiovský g_debug(" failed to check disk path, ignoring error: %s", 1513fed39564STomáš Golembiovský error_get_pretty(local_err)); 1514fed39564STomáš Golembiovský error_free(local_err); 1515fed39564STomáš Golembiovský local_err = NULL; 1516fed39564STomáš Golembiovský /* Don't try to get the address */ 1517fed39564STomáš Golembiovský is_virtual = true; 1518fed39564STomáš Golembiovský } 1519fed39564STomáš Golembiovský if (!is_virtual) { 1520fed39564STomáš Golembiovský disk->address = get_disk_address(disk_dir, &local_err); 1521fed39564STomáš Golembiovský if (local_err != NULL) { 1522fed39564STomáš Golembiovský g_debug(" failed to get device info, ignoring error: %s", 1523fed39564STomáš Golembiovský error_get_pretty(local_err)); 1524fed39564STomáš Golembiovský error_free(local_err); 1525fed39564STomáš Golembiovský local_err = NULL; 1526fed39564STomáš Golembiovský } 1527fed39564STomáš Golembiovský } 1528fed39564STomáš Golembiovský 1529fed39564STomáš Golembiovský get_disk_deps(disk_dir, disk); 153022668881Szhenwei pi get_disk_smart(disk); 1531fed39564STomáš Golembiovský ret = get_disk_partitions(ret, de->d_name, disk_dir, dev_name); 1532fed39564STomáš Golembiovský } 1533b1b9ab1cSMichael Roth 1534b1b9ab1cSMichael Roth closedir(dp); 1535b1b9ab1cSMichael Roth 1536fed39564STomáš Golembiovský return ret; 1537fed39564STomáš Golembiovský } 1538fed39564STomáš Golembiovský 1539fed39564STomáš Golembiovský #else 1540fed39564STomáš Golembiovský 1541fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1542fed39564STomáš Golembiovský { 1543fed39564STomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 1544fed39564STomáš Golembiovský return NULL; 1545fed39564STomáš Golembiovský } 1546fed39564STomáš Golembiovský 1547fed39564STomáš Golembiovský #endif 1548fed39564STomáš Golembiovský 154946d4c572STomoki Sekiyama /* Return a list of the disk device(s)' info which @mount lies on */ 155046d4c572STomoki Sekiyama static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, 155146d4c572STomoki Sekiyama Error **errp) 155246d4c572STomoki Sekiyama { 155346d4c572STomoki Sekiyama GuestFilesystemInfo *fs = g_malloc0(sizeof(*fs)); 155425b5ff1aSChen Hanxiao struct statvfs buf; 155525b5ff1aSChen Hanxiao unsigned long used, nonroot_total, fr_size; 155646d4c572STomoki Sekiyama char *devpath = g_strdup_printf("/sys/dev/block/%u:%u", 155746d4c572STomoki Sekiyama mount->devmajor, mount->devminor); 155846d4c572STomoki Sekiyama 155946d4c572STomoki Sekiyama fs->mountpoint = g_strdup(mount->dirname); 156046d4c572STomoki Sekiyama fs->type = g_strdup(mount->devtype); 156146d4c572STomoki Sekiyama build_guest_fsinfo_for_device(devpath, fs, errp); 156246d4c572STomoki Sekiyama 156325b5ff1aSChen Hanxiao if (statvfs(fs->mountpoint, &buf) == 0) { 156425b5ff1aSChen Hanxiao fr_size = buf.f_frsize; 156525b5ff1aSChen Hanxiao used = buf.f_blocks - buf.f_bfree; 156625b5ff1aSChen Hanxiao nonroot_total = used + buf.f_bavail; 156725b5ff1aSChen Hanxiao fs->used_bytes = used * fr_size; 156825b5ff1aSChen Hanxiao fs->total_bytes = nonroot_total * fr_size; 156925b5ff1aSChen Hanxiao 157025b5ff1aSChen Hanxiao fs->has_total_bytes = true; 157125b5ff1aSChen Hanxiao fs->has_used_bytes = true; 157225b5ff1aSChen Hanxiao } 157325b5ff1aSChen Hanxiao 157446d4c572STomoki Sekiyama g_free(devpath); 157525b5ff1aSChen Hanxiao 157646d4c572STomoki Sekiyama return fs; 157746d4c572STomoki Sekiyama } 157846d4c572STomoki Sekiyama 157946d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 158046d4c572STomoki Sekiyama { 158146d4c572STomoki Sekiyama FsMountList mounts; 158246d4c572STomoki Sekiyama struct FsMount *mount; 158354aa3de7SEric Blake GuestFilesystemInfoList *ret = NULL; 158446d4c572STomoki Sekiyama Error *local_err = NULL; 158546d4c572STomoki Sekiyama 158646d4c572STomoki Sekiyama QTAILQ_INIT(&mounts); 1587561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, &local_err)) { 158846d4c572STomoki Sekiyama error_propagate(errp, local_err); 158946d4c572STomoki Sekiyama return NULL; 159046d4c572STomoki Sekiyama } 159146d4c572STomoki Sekiyama 159246d4c572STomoki Sekiyama QTAILQ_FOREACH(mount, &mounts, next) { 159346d4c572STomoki Sekiyama g_debug("Building guest fsinfo for '%s'", mount->dirname); 159446d4c572STomoki Sekiyama 159554aa3de7SEric Blake QAPI_LIST_PREPEND(ret, build_guest_fsinfo(mount, &local_err)); 159646d4c572STomoki Sekiyama if (local_err) { 159746d4c572STomoki Sekiyama error_propagate(errp, local_err); 159846d4c572STomoki Sekiyama qapi_free_GuestFilesystemInfoList(ret); 159946d4c572STomoki Sekiyama ret = NULL; 160046d4c572STomoki Sekiyama break; 160146d4c572STomoki Sekiyama } 160246d4c572STomoki Sekiyama } 160346d4c572STomoki Sekiyama 160446d4c572STomoki Sekiyama free_fs_mount_list(&mounts); 160546d4c572STomoki Sekiyama return ret; 160646d4c572STomoki Sekiyama } 1607e72c3f2eSMichael Roth #endif /* CONFIG_FSFREEZE */ 1608c216e5adSMichael Roth 1609eab5fd59SPaolo Bonzini #if defined(CONFIG_FSTRIM) 1610eab5fd59SPaolo Bonzini /* 1611eab5fd59SPaolo Bonzini * Walk list of mounted file systems in the guest, and trim them. 1612eab5fd59SPaolo Bonzini */ 1613e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 1614e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1615eab5fd59SPaolo Bonzini { 1616e82855d9SJustin Ossevoort GuestFilesystemTrimResponse *response; 1617e82855d9SJustin Ossevoort GuestFilesystemTrimResult *result; 1618eab5fd59SPaolo Bonzini int ret = 0; 1619eab5fd59SPaolo Bonzini FsMountList mounts; 1620eab5fd59SPaolo Bonzini struct FsMount *mount; 1621eab5fd59SPaolo Bonzini int fd; 162273a652a1SJustin Ossevoort struct fstrim_range r; 1623eab5fd59SPaolo Bonzini 1624eab5fd59SPaolo Bonzini slog("guest-fstrim called"); 1625eab5fd59SPaolo Bonzini 1626eab5fd59SPaolo Bonzini QTAILQ_INIT(&mounts); 1627561bfcb6SMarc-André Lureau if (!build_fs_mount_list(&mounts, errp)) { 1628e82855d9SJustin Ossevoort return NULL; 1629eab5fd59SPaolo Bonzini } 1630eab5fd59SPaolo Bonzini 1631e82855d9SJustin Ossevoort response = g_malloc0(sizeof(*response)); 1632e82855d9SJustin Ossevoort 1633eab5fd59SPaolo Bonzini QTAILQ_FOREACH(mount, &mounts, next) { 1634e82855d9SJustin Ossevoort result = g_malloc0(sizeof(*result)); 1635e82855d9SJustin Ossevoort result->path = g_strdup(mount->dirname); 1636e82855d9SJustin Ossevoort 163754aa3de7SEric Blake QAPI_LIST_PREPEND(response->paths, result); 1638e82855d9SJustin Ossevoort 1639b9947c9cSMarc-André Lureau fd = qga_open_cloexec(mount->dirname, O_RDONLY, 0); 1640eab5fd59SPaolo Bonzini if (fd == -1) { 1641e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to open: %s", 1642e82855d9SJustin Ossevoort strerror(errno)); 1643e82855d9SJustin Ossevoort continue; 1644eab5fd59SPaolo Bonzini } 1645eab5fd59SPaolo Bonzini 1646e35916acSMichael Tokarev /* We try to cull filesystems we know won't work in advance, but other 1647e35916acSMichael Tokarev * filesystems may not implement fstrim for less obvious reasons. 1648e35916acSMichael Tokarev * These will report EOPNOTSUPP; while in some other cases ENOTTY 1649e35916acSMichael Tokarev * will be reported (e.g. CD-ROMs). 1650e82855d9SJustin Ossevoort * Any other error means an unexpected error. 1651eab5fd59SPaolo Bonzini */ 165273a652a1SJustin Ossevoort r.start = 0; 165373a652a1SJustin Ossevoort r.len = -1; 165473a652a1SJustin Ossevoort r.minlen = has_minimum ? minimum : 0; 1655eab5fd59SPaolo Bonzini ret = ioctl(fd, FITRIM, &r); 1656eab5fd59SPaolo Bonzini if (ret == -1) { 1657e82855d9SJustin Ossevoort if (errno == ENOTTY || errno == EOPNOTSUPP) { 1658e82855d9SJustin Ossevoort result->error = g_strdup("trim not supported"); 1659e82855d9SJustin Ossevoort } else { 1660e82855d9SJustin Ossevoort result->error = g_strdup_printf("failed to trim: %s", 1661e82855d9SJustin Ossevoort strerror(errno)); 1662e82855d9SJustin Ossevoort } 1663eab5fd59SPaolo Bonzini close(fd); 1664e82855d9SJustin Ossevoort continue; 1665eab5fd59SPaolo Bonzini } 1666e82855d9SJustin Ossevoort 1667e82855d9SJustin Ossevoort result->has_minimum = true; 1668e82855d9SJustin Ossevoort result->minimum = r.minlen; 1669e82855d9SJustin Ossevoort result->has_trimmed = true; 1670e82855d9SJustin Ossevoort result->trimmed = r.len; 1671eab5fd59SPaolo Bonzini close(fd); 1672eab5fd59SPaolo Bonzini } 1673eab5fd59SPaolo Bonzini 1674eab5fd59SPaolo Bonzini free_fs_mount_list(&mounts); 1675e82855d9SJustin Ossevoort return response; 1676eab5fd59SPaolo Bonzini } 1677eab5fd59SPaolo Bonzini #endif /* CONFIG_FSTRIM */ 1678eab5fd59SPaolo Bonzini 1679eab5fd59SPaolo Bonzini 168011d0f125SLuiz Capitulino #define LINUX_SYS_STATE_FILE "/sys/power/state" 168111d0f125SLuiz Capitulino #define SUSPEND_SUPPORTED 0 168211d0f125SLuiz Capitulino #define SUSPEND_NOT_SUPPORTED 1 168311d0f125SLuiz Capitulino 16848b020b5eSDaniel Henrique Barboza typedef enum { 16858b020b5eSDaniel Henrique Barboza SUSPEND_MODE_DISK = 0, 16868b020b5eSDaniel Henrique Barboza SUSPEND_MODE_RAM = 1, 16878b020b5eSDaniel Henrique Barboza SUSPEND_MODE_HYBRID = 2, 16888b020b5eSDaniel Henrique Barboza } SuspendMode; 16898b020b5eSDaniel Henrique Barboza 16908b020b5eSDaniel Henrique Barboza /* 16918b020b5eSDaniel Henrique Barboza * Executes a command in a child process using g_spawn_sync, 16928b020b5eSDaniel Henrique Barboza * returning an int >= 0 representing the exit status of the 16938b020b5eSDaniel Henrique Barboza * process. 16948b020b5eSDaniel Henrique Barboza * 16958b020b5eSDaniel Henrique Barboza * If the program wasn't found in path, returns -1. 16968b020b5eSDaniel Henrique Barboza * 16978b020b5eSDaniel Henrique Barboza * If a problem happened when creating the child process, 16988b020b5eSDaniel Henrique Barboza * returns -1 and errp is set. 16998b020b5eSDaniel Henrique Barboza */ 17008b020b5eSDaniel Henrique Barboza static int run_process_child(const char *command[], Error **errp) 17018b020b5eSDaniel Henrique Barboza { 17028b020b5eSDaniel Henrique Barboza int exit_status, spawn_flag; 17038b020b5eSDaniel Henrique Barboza GError *g_err = NULL; 17048b020b5eSDaniel Henrique Barboza bool success; 17058b020b5eSDaniel Henrique Barboza 17068b020b5eSDaniel Henrique Barboza spawn_flag = G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | 17078b020b5eSDaniel Henrique Barboza G_SPAWN_STDERR_TO_DEV_NULL; 17088b020b5eSDaniel Henrique Barboza 1709fcc41961SMarc-André Lureau success = g_spawn_sync(NULL, (char **)command, NULL, spawn_flag, 17108b020b5eSDaniel Henrique Barboza NULL, NULL, NULL, NULL, 17118b020b5eSDaniel Henrique Barboza &exit_status, &g_err); 17128b020b5eSDaniel Henrique Barboza 17138b020b5eSDaniel Henrique Barboza if (success) { 17148b020b5eSDaniel Henrique Barboza return WEXITSTATUS(exit_status); 17158b020b5eSDaniel Henrique Barboza } 17168b020b5eSDaniel Henrique Barboza 17178b020b5eSDaniel Henrique Barboza if (g_err && (g_err->code != G_SPAWN_ERROR_NOENT)) { 17188b020b5eSDaniel Henrique Barboza error_setg(errp, "failed to create child process, error '%s'", 17198b020b5eSDaniel Henrique Barboza g_err->message); 17208b020b5eSDaniel Henrique Barboza } 17218b020b5eSDaniel Henrique Barboza 17228b020b5eSDaniel Henrique Barboza g_error_free(g_err); 17238b020b5eSDaniel Henrique Barboza return -1; 17248b020b5eSDaniel Henrique Barboza } 17258b020b5eSDaniel Henrique Barboza 1726067927d6SDaniel Henrique Barboza static bool systemd_supports_mode(SuspendMode mode, Error **errp) 1727067927d6SDaniel Henrique Barboza { 1728067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"systemd-hibernate", "systemd-suspend", 1729067927d6SDaniel Henrique Barboza "systemd-hybrid-sleep"}; 1730067927d6SDaniel Henrique Barboza const char *cmd[4] = {"systemctl", "status", systemctl_args[mode], NULL}; 1731067927d6SDaniel Henrique Barboza int status; 1732067927d6SDaniel Henrique Barboza 1733992861fbSMarkus Armbruster status = run_process_child(cmd, errp); 1734067927d6SDaniel Henrique Barboza 1735067927d6SDaniel Henrique Barboza /* 1736067927d6SDaniel Henrique Barboza * systemctl status uses LSB return codes so we can expect 1737067927d6SDaniel Henrique Barboza * status > 0 and be ok. To assert if the guest has support 1738067927d6SDaniel Henrique Barboza * for the selected suspend mode, status should be < 4. 4 is 1739067927d6SDaniel Henrique Barboza * the code for unknown service status, the return value when 1740067927d6SDaniel Henrique Barboza * the service does not exist. A common value is status = 3 1741067927d6SDaniel Henrique Barboza * (program is not running). 1742067927d6SDaniel Henrique Barboza */ 1743067927d6SDaniel Henrique Barboza if (status > 0 && status < 4) { 1744067927d6SDaniel Henrique Barboza return true; 1745067927d6SDaniel Henrique Barboza } 1746067927d6SDaniel Henrique Barboza 1747067927d6SDaniel Henrique Barboza return false; 1748067927d6SDaniel Henrique Barboza } 1749067927d6SDaniel Henrique Barboza 1750067927d6SDaniel Henrique Barboza static void systemd_suspend(SuspendMode mode, Error **errp) 1751067927d6SDaniel Henrique Barboza { 1752067927d6SDaniel Henrique Barboza Error *local_err = NULL; 1753067927d6SDaniel Henrique Barboza const char *systemctl_args[3] = {"hibernate", "suspend", "hybrid-sleep"}; 1754067927d6SDaniel Henrique Barboza const char *cmd[3] = {"systemctl", systemctl_args[mode], NULL}; 1755067927d6SDaniel Henrique Barboza int status; 1756067927d6SDaniel Henrique Barboza 1757067927d6SDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1758067927d6SDaniel Henrique Barboza 1759067927d6SDaniel Henrique Barboza if (status == 0) { 1760067927d6SDaniel Henrique Barboza return; 1761067927d6SDaniel Henrique Barboza } 1762067927d6SDaniel Henrique Barboza 1763067927d6SDaniel Henrique Barboza if ((status == -1) && !local_err) { 1764067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' was not found", 1765067927d6SDaniel Henrique Barboza systemctl_args[mode]); 1766067927d6SDaniel Henrique Barboza return; 1767067927d6SDaniel Henrique Barboza } 1768067927d6SDaniel Henrique Barboza 1769067927d6SDaniel Henrique Barboza if (local_err) { 1770067927d6SDaniel Henrique Barboza error_propagate(errp, local_err); 1771067927d6SDaniel Henrique Barboza } else { 1772067927d6SDaniel Henrique Barboza error_setg(errp, "the helper program 'systemctl %s' returned an " 1773067927d6SDaniel Henrique Barboza "unexpected exit status code (%d)", 1774067927d6SDaniel Henrique Barboza systemctl_args[mode], status); 1775067927d6SDaniel Henrique Barboza } 1776067927d6SDaniel Henrique Barboza } 1777067927d6SDaniel Henrique Barboza 17788b020b5eSDaniel Henrique Barboza static bool pmutils_supports_mode(SuspendMode mode, Error **errp) 177911d0f125SLuiz Capitulino { 17806b26e837SLuiz Capitulino Error *local_err = NULL; 17818b020b5eSDaniel Henrique Barboza const char *pmutils_args[3] = {"--hibernate", "--suspend", 17828b020b5eSDaniel Henrique Barboza "--suspend-hybrid"}; 17838b020b5eSDaniel Henrique Barboza const char *cmd[3] = {"pm-is-supported", pmutils_args[mode], NULL}; 1784dc8764f0SLuiz Capitulino int status; 178511d0f125SLuiz Capitulino 17868b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1787304a0fcbSDaniel Henrique Barboza 17888b020b5eSDaniel Henrique Barboza if (status == SUSPEND_SUPPORTED) { 17898b020b5eSDaniel Henrique Barboza return true; 1790304a0fcbSDaniel Henrique Barboza } 1791304a0fcbSDaniel Henrique Barboza 17928b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 17938b020b5eSDaniel Henrique Barboza return false; 1794a5fcf0e3SDaniel Henrique Barboza } 179511d0f125SLuiz Capitulino 179684d18f06SMarkus Armbruster if (local_err) { 179777dbc81bSMarkus Armbruster error_propagate(errp, local_err); 17988b020b5eSDaniel Henrique Barboza } else { 179977dbc81bSMarkus Armbruster error_setg(errp, 18008b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 18018b020b5eSDaniel Henrique Barboza " status code (%d)", "pm-is-supported", status); 1802dc8764f0SLuiz Capitulino } 180311d0f125SLuiz Capitulino 18048b020b5eSDaniel Henrique Barboza return false; 1805a5fcf0e3SDaniel Henrique Barboza } 1806a5fcf0e3SDaniel Henrique Barboza 18078b020b5eSDaniel Henrique Barboza static void pmutils_suspend(SuspendMode mode, Error **errp) 1808246d76ebSDaniel Henrique Barboza { 1809246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 18108b020b5eSDaniel Henrique Barboza const char *pmutils_binaries[3] = {"pm-hibernate", "pm-suspend", 18118b020b5eSDaniel Henrique Barboza "pm-suspend-hybrid"}; 18128b020b5eSDaniel Henrique Barboza const char *cmd[2] = {pmutils_binaries[mode], NULL}; 1813246d76ebSDaniel Henrique Barboza int status; 1814246d76ebSDaniel Henrique Barboza 18158b020b5eSDaniel Henrique Barboza status = run_process_child(cmd, &local_err); 1816246d76ebSDaniel Henrique Barboza 18178b020b5eSDaniel Henrique Barboza if (status == 0) { 1818246d76ebSDaniel Henrique Barboza return; 1819246d76ebSDaniel Henrique Barboza } 1820246d76ebSDaniel Henrique Barboza 18218b020b5eSDaniel Henrique Barboza if ((status == -1) && !local_err) { 18228b020b5eSDaniel Henrique Barboza error_setg(errp, "the helper program '%s' was not found", 18238b020b5eSDaniel Henrique Barboza pmutils_binaries[mode]); 1824246d76ebSDaniel Henrique Barboza return; 1825246d76ebSDaniel Henrique Barboza } 1826246d76ebSDaniel Henrique Barboza 1827246d76ebSDaniel Henrique Barboza if (local_err) { 1828246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 18298b020b5eSDaniel Henrique Barboza } else { 1830246d76ebSDaniel Henrique Barboza error_setg(errp, 18318b020b5eSDaniel Henrique Barboza "the helper program '%s' returned an unexpected exit" 18328b020b5eSDaniel Henrique Barboza " status code (%d)", pmutils_binaries[mode], status); 18338b020b5eSDaniel Henrique Barboza } 1834246d76ebSDaniel Henrique Barboza } 1835246d76ebSDaniel Henrique Barboza 18368b020b5eSDaniel Henrique Barboza static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) 1837a5fcf0e3SDaniel Henrique Barboza { 18388b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 18398b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1840a5fcf0e3SDaniel Henrique Barboza char buf[32]; /* hopefully big enough */ 1841a5fcf0e3SDaniel Henrique Barboza int fd; 1842a5fcf0e3SDaniel Henrique Barboza ssize_t ret; 1843a5fcf0e3SDaniel Henrique Barboza 18448b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 18458b020b5eSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1846a5fcf0e3SDaniel Henrique Barboza return false; 1847a5fcf0e3SDaniel Henrique Barboza } 1848a5fcf0e3SDaniel Henrique Barboza 1849a5fcf0e3SDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_RDONLY); 1850a5fcf0e3SDaniel Henrique Barboza if (fd < 0) { 1851a5fcf0e3SDaniel Henrique Barboza return false; 1852a5fcf0e3SDaniel Henrique Barboza } 1853a5fcf0e3SDaniel Henrique Barboza 1854a5fcf0e3SDaniel Henrique Barboza ret = read(fd, buf, sizeof(buf) - 1); 1855d9c745c1SPaolo Bonzini close(fd); 1856a5fcf0e3SDaniel Henrique Barboza if (ret <= 0) { 1857a5fcf0e3SDaniel Henrique Barboza return false; 1858a5fcf0e3SDaniel Henrique Barboza } 1859a5fcf0e3SDaniel Henrique Barboza buf[ret] = '\0'; 1860a5fcf0e3SDaniel Henrique Barboza 1861a5fcf0e3SDaniel Henrique Barboza if (strstr(buf, sysfile_str)) { 1862a5fcf0e3SDaniel Henrique Barboza return true; 1863a5fcf0e3SDaniel Henrique Barboza } 1864a5fcf0e3SDaniel Henrique Barboza return false; 1865a5fcf0e3SDaniel Henrique Barboza } 1866a5fcf0e3SDaniel Henrique Barboza 18678b020b5eSDaniel Henrique Barboza static void linux_sys_state_suspend(SuspendMode mode, Error **errp) 1868246d76ebSDaniel Henrique Barboza { 1869246d76ebSDaniel Henrique Barboza Error *local_err = NULL; 18708b020b5eSDaniel Henrique Barboza const char *sysfile_strs[3] = {"disk", "mem", NULL}; 18718b020b5eSDaniel Henrique Barboza const char *sysfile_str = sysfile_strs[mode]; 1872246d76ebSDaniel Henrique Barboza pid_t pid; 1873246d76ebSDaniel Henrique Barboza int status; 1874246d76ebSDaniel Henrique Barboza 18758b020b5eSDaniel Henrique Barboza if (!sysfile_str) { 1876246d76ebSDaniel Henrique Barboza error_setg(errp, "unknown guest suspend mode"); 1877246d76ebSDaniel Henrique Barboza return; 1878246d76ebSDaniel Henrique Barboza } 1879246d76ebSDaniel Henrique Barboza 1880246d76ebSDaniel Henrique Barboza pid = fork(); 1881246d76ebSDaniel Henrique Barboza if (!pid) { 1882246d76ebSDaniel Henrique Barboza /* child */ 1883246d76ebSDaniel Henrique Barboza int fd; 1884246d76ebSDaniel Henrique Barboza 1885246d76ebSDaniel Henrique Barboza setsid(); 1886246d76ebSDaniel Henrique Barboza reopen_fd_to_null(0); 1887246d76ebSDaniel Henrique Barboza reopen_fd_to_null(1); 1888246d76ebSDaniel Henrique Barboza reopen_fd_to_null(2); 1889246d76ebSDaniel Henrique Barboza 1890246d76ebSDaniel Henrique Barboza fd = open(LINUX_SYS_STATE_FILE, O_WRONLY); 1891246d76ebSDaniel Henrique Barboza if (fd < 0) { 1892246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1893246d76ebSDaniel Henrique Barboza } 1894246d76ebSDaniel Henrique Barboza 1895246d76ebSDaniel Henrique Barboza if (write(fd, sysfile_str, strlen(sysfile_str)) < 0) { 1896246d76ebSDaniel Henrique Barboza _exit(EXIT_FAILURE); 1897246d76ebSDaniel Henrique Barboza } 1898246d76ebSDaniel Henrique Barboza 1899246d76ebSDaniel Henrique Barboza _exit(EXIT_SUCCESS); 1900246d76ebSDaniel Henrique Barboza } else if (pid < 0) { 1901246d76ebSDaniel Henrique Barboza error_setg_errno(errp, errno, "failed to create child process"); 1902246d76ebSDaniel Henrique Barboza return; 1903246d76ebSDaniel Henrique Barboza } 1904246d76ebSDaniel Henrique Barboza 1905246d76ebSDaniel Henrique Barboza ga_wait_child(pid, &status, &local_err); 1906246d76ebSDaniel Henrique Barboza if (local_err) { 1907246d76ebSDaniel Henrique Barboza error_propagate(errp, local_err); 1908246d76ebSDaniel Henrique Barboza return; 1909246d76ebSDaniel Henrique Barboza } 1910246d76ebSDaniel Henrique Barboza 1911246d76ebSDaniel Henrique Barboza if (WEXITSTATUS(status)) { 1912246d76ebSDaniel Henrique Barboza error_setg(errp, "child process has failed to suspend"); 1913246d76ebSDaniel Henrique Barboza } 1914246d76ebSDaniel Henrique Barboza 1915246d76ebSDaniel Henrique Barboza } 1916246d76ebSDaniel Henrique Barboza 19178b020b5eSDaniel Henrique Barboza static void guest_suspend(SuspendMode mode, Error **errp) 191811d0f125SLuiz Capitulino { 19197b376087SLuiz Capitulino Error *local_err = NULL; 192073e1d8ebSDaniel Henrique Barboza bool mode_supported = false; 192111d0f125SLuiz Capitulino 192273e1d8ebSDaniel Henrique Barboza if (systemd_supports_mode(mode, &local_err)) { 192373e1d8ebSDaniel Henrique Barboza mode_supported = true; 1924067927d6SDaniel Henrique Barboza systemd_suspend(mode, &local_err); 192573e1d8ebSDaniel Henrique Barboza 1926067927d6SDaniel Henrique Barboza if (!local_err) { 1927067927d6SDaniel Henrique Barboza return; 1928067927d6SDaniel Henrique Barboza } 1929*86dcb6abSMark Somerville } 1930067927d6SDaniel Henrique Barboza 1931067927d6SDaniel Henrique Barboza error_free(local_err); 19326a4a3853SVladimir Sementsov-Ogievskiy local_err = NULL; 1933067927d6SDaniel Henrique Barboza 193473e1d8ebSDaniel Henrique Barboza if (pmutils_supports_mode(mode, &local_err)) { 193573e1d8ebSDaniel Henrique Barboza mode_supported = true; 19368b020b5eSDaniel Henrique Barboza pmutils_suspend(mode, &local_err); 193773e1d8ebSDaniel Henrique Barboza 1938246d76ebSDaniel Henrique Barboza if (!local_err) { 1939304a0fcbSDaniel Henrique Barboza return; 1940304a0fcbSDaniel Henrique Barboza } 1941*86dcb6abSMark Somerville } 1942304a0fcbSDaniel Henrique Barboza 1943246d76ebSDaniel Henrique Barboza error_free(local_err); 19446a4a3853SVladimir Sementsov-Ogievskiy local_err = NULL; 194511d0f125SLuiz Capitulino 194673e1d8ebSDaniel Henrique Barboza if (linux_sys_state_supports_mode(mode, &local_err)) { 194773e1d8ebSDaniel Henrique Barboza mode_supported = true; 19488b020b5eSDaniel Henrique Barboza linux_sys_state_suspend(mode, &local_err); 194973e1d8ebSDaniel Henrique Barboza } 195073e1d8ebSDaniel Henrique Barboza 195173e1d8ebSDaniel Henrique Barboza if (!mode_supported) { 19526a4a3853SVladimir Sementsov-Ogievskiy error_free(local_err); 195373e1d8ebSDaniel Henrique Barboza error_setg(errp, 195473e1d8ebSDaniel Henrique Barboza "the requested suspend mode is not supported by the guest"); 1955b2322003SMarkus Armbruster } else { 195677dbc81bSMarkus Armbruster error_propagate(errp, local_err); 19577b376087SLuiz Capitulino } 195811d0f125SLuiz Capitulino } 195911d0f125SLuiz Capitulino 196077dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 196111d0f125SLuiz Capitulino { 1962304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_DISK, errp); 196311d0f125SLuiz Capitulino } 196411d0f125SLuiz Capitulino 196577dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 1966fbf42210SLuiz Capitulino { 1967304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_RAM, errp); 1968fbf42210SLuiz Capitulino } 1969fbf42210SLuiz Capitulino 197077dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 197195f4f404SLuiz Capitulino { 1972304a0fcbSDaniel Henrique Barboza guest_suspend(SUSPEND_MODE_HYBRID, errp); 197395f4f404SLuiz Capitulino } 197495f4f404SLuiz Capitulino 1975d2baff62SLaszlo Ersek /* Transfer online/offline status between @vcpu and the guest system. 1976d2baff62SLaszlo Ersek * 1977d2baff62SLaszlo Ersek * On input either @errp or *@errp must be NULL. 1978d2baff62SLaszlo Ersek * 1979d2baff62SLaszlo Ersek * In system-to-@vcpu direction, the following @vcpu fields are accessed: 1980d2baff62SLaszlo Ersek * - R: vcpu->logical_id 1981d2baff62SLaszlo Ersek * - W: vcpu->online 1982d2baff62SLaszlo Ersek * - W: vcpu->can_offline 1983d2baff62SLaszlo Ersek * 1984d2baff62SLaszlo Ersek * In @vcpu-to-system direction, the following @vcpu fields are accessed: 1985d2baff62SLaszlo Ersek * - R: vcpu->logical_id 1986d2baff62SLaszlo Ersek * - R: vcpu->online 1987d2baff62SLaszlo Ersek * 1988d2baff62SLaszlo Ersek * Written members remain unmodified on error. 1989d2baff62SLaszlo Ersek */ 1990d2baff62SLaszlo Ersek static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, 1991b4bf912aSIgor Mammedov char *dirpath, Error **errp) 1992d2baff62SLaszlo Ersek { 1993b4bf912aSIgor Mammedov int fd; 1994b4bf912aSIgor Mammedov int res; 1995d2baff62SLaszlo Ersek int dirfd; 1996b4bf912aSIgor Mammedov static const char fn[] = "online"; 1997d2baff62SLaszlo Ersek 1998d2baff62SLaszlo Ersek dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 1999d2baff62SLaszlo Ersek if (dirfd == -1) { 2000d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2001b4bf912aSIgor Mammedov return; 2002b4bf912aSIgor Mammedov } 2003d2baff62SLaszlo Ersek 2004d2baff62SLaszlo Ersek fd = openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); 2005d2baff62SLaszlo Ersek if (fd == -1) { 2006d2baff62SLaszlo Ersek if (errno != ENOENT) { 2007d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); 2008d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2009d2baff62SLaszlo Ersek vcpu->online = true; 2010d2baff62SLaszlo Ersek vcpu->can_offline = false; 2011d2baff62SLaszlo Ersek } else if (!vcpu->online) { 2012d2baff62SLaszlo Ersek error_setg(errp, "logical processor #%" PRId64 " can't be " 2013d2baff62SLaszlo Ersek "offlined", vcpu->logical_id); 2014d2baff62SLaszlo Ersek } /* otherwise pretend successful re-onlining */ 2015d2baff62SLaszlo Ersek } else { 2016d2baff62SLaszlo Ersek unsigned char status; 2017d2baff62SLaszlo Ersek 2018d2baff62SLaszlo Ersek res = pread(fd, &status, 1, 0); 2019d2baff62SLaszlo Ersek if (res == -1) { 2020d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); 2021d2baff62SLaszlo Ersek } else if (res == 0) { 2022d2baff62SLaszlo Ersek error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, 2023d2baff62SLaszlo Ersek fn); 2024d2baff62SLaszlo Ersek } else if (sys2vcpu) { 2025d2baff62SLaszlo Ersek vcpu->online = (status != '0'); 2026d2baff62SLaszlo Ersek vcpu->can_offline = true; 2027d2baff62SLaszlo Ersek } else if (vcpu->online != (status != '0')) { 2028d2baff62SLaszlo Ersek status = '0' + vcpu->online; 2029d2baff62SLaszlo Ersek if (pwrite(fd, &status, 1, 0) == -1) { 2030d2baff62SLaszlo Ersek error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, 2031d2baff62SLaszlo Ersek fn); 2032d2baff62SLaszlo Ersek } 2033d2baff62SLaszlo Ersek } /* otherwise pretend successful re-(on|off)-lining */ 2034d2baff62SLaszlo Ersek 2035d2baff62SLaszlo Ersek res = close(fd); 2036d2baff62SLaszlo Ersek g_assert(res == 0); 2037d2baff62SLaszlo Ersek } 2038d2baff62SLaszlo Ersek 2039d2baff62SLaszlo Ersek res = close(dirfd); 2040d2baff62SLaszlo Ersek g_assert(res == 0); 2041d2baff62SLaszlo Ersek } 2042d2baff62SLaszlo Ersek 2043d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2044d2baff62SLaszlo Ersek { 2045c3033fd3SEric Blake GuestLogicalProcessorList *head, **tail; 204627e7de3cSLin Ma const char *cpu_dir = "/sys/devices/system/cpu"; 204727e7de3cSLin Ma const gchar *line; 204827e7de3cSLin Ma g_autoptr(GDir) cpu_gdir = NULL; 2049d2baff62SLaszlo Ersek Error *local_err = NULL; 2050d2baff62SLaszlo Ersek 2051d2baff62SLaszlo Ersek head = NULL; 2052c3033fd3SEric Blake tail = &head; 205327e7de3cSLin Ma cpu_gdir = g_dir_open(cpu_dir, 0, NULL); 2054d2baff62SLaszlo Ersek 205527e7de3cSLin Ma if (cpu_gdir == NULL) { 205627e7de3cSLin Ma error_setg_errno(errp, errno, "failed to list entries: %s", cpu_dir); 205727e7de3cSLin Ma return NULL; 205827e7de3cSLin Ma } 205927e7de3cSLin Ma 206027e7de3cSLin Ma while (local_err == NULL && (line = g_dir_read_name(cpu_gdir)) != NULL) { 2061d2baff62SLaszlo Ersek GuestLogicalProcessor *vcpu; 206227e7de3cSLin Ma int64_t id; 206327e7de3cSLin Ma if (sscanf(line, "cpu%" PRId64, &id)) { 206427e7de3cSLin Ma g_autofree char *path = g_strdup_printf("/sys/devices/system/cpu/" 206527e7de3cSLin Ma "cpu%" PRId64 "/", id); 2066d2baff62SLaszlo Ersek vcpu = g_malloc0(sizeof *vcpu); 2067b4bf912aSIgor Mammedov vcpu->logical_id = id; 2068d2baff62SLaszlo Ersek vcpu->has_can_offline = true; /* lolspeak ftw */ 2069b4bf912aSIgor Mammedov transfer_vcpu(vcpu, true, path, &local_err); 2070c3033fd3SEric Blake QAPI_LIST_APPEND(tail, vcpu); 2071d2baff62SLaszlo Ersek } 2072b4bf912aSIgor Mammedov } 2073d2baff62SLaszlo Ersek 2074d2baff62SLaszlo Ersek if (local_err == NULL) { 2075d2baff62SLaszlo Ersek /* there's no guest with zero VCPUs */ 2076d2baff62SLaszlo Ersek g_assert(head != NULL); 2077d2baff62SLaszlo Ersek return head; 2078d2baff62SLaszlo Ersek } 2079d2baff62SLaszlo Ersek 2080d2baff62SLaszlo Ersek qapi_free_GuestLogicalProcessorList(head); 2081d2baff62SLaszlo Ersek error_propagate(errp, local_err); 2082d2baff62SLaszlo Ersek return NULL; 2083d2baff62SLaszlo Ersek } 2084d2baff62SLaszlo Ersek 2085cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2086cbb65fc2SLaszlo Ersek { 2087cbb65fc2SLaszlo Ersek int64_t processed; 2088cbb65fc2SLaszlo Ersek Error *local_err = NULL; 2089cbb65fc2SLaszlo Ersek 2090cbb65fc2SLaszlo Ersek processed = 0; 2091cbb65fc2SLaszlo Ersek while (vcpus != NULL) { 2092b4bf912aSIgor Mammedov char *path = g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64 "/", 2093b4bf912aSIgor Mammedov vcpus->value->logical_id); 2094b4bf912aSIgor Mammedov 2095b4bf912aSIgor Mammedov transfer_vcpu(vcpus->value, false, path, &local_err); 2096b4bf912aSIgor Mammedov g_free(path); 2097cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2098cbb65fc2SLaszlo Ersek break; 2099cbb65fc2SLaszlo Ersek } 2100cbb65fc2SLaszlo Ersek ++processed; 2101cbb65fc2SLaszlo Ersek vcpus = vcpus->next; 2102cbb65fc2SLaszlo Ersek } 2103cbb65fc2SLaszlo Ersek 2104cbb65fc2SLaszlo Ersek if (local_err != NULL) { 2105cbb65fc2SLaszlo Ersek if (processed == 0) { 2106cbb65fc2SLaszlo Ersek error_propagate(errp, local_err); 2107cbb65fc2SLaszlo Ersek } else { 2108cbb65fc2SLaszlo Ersek error_free(local_err); 2109cbb65fc2SLaszlo Ersek } 2110cbb65fc2SLaszlo Ersek } 2111cbb65fc2SLaszlo Ersek 2112cbb65fc2SLaszlo Ersek return processed; 2113cbb65fc2SLaszlo Ersek } 21144fd0642eSAlexander Ivanov #endif /* __linux__ */ 2115cbb65fc2SLaszlo Ersek 21164fd0642eSAlexander Ivanov #if defined(__linux__) || defined(__FreeBSD__) 2117215a2771SDaniel P. Berrange void qmp_guest_set_user_password(const char *username, 2118215a2771SDaniel P. Berrange const char *password, 2119215a2771SDaniel P. Berrange bool crypted, 2120215a2771SDaniel P. Berrange Error **errp) 2121215a2771SDaniel P. Berrange { 2122215a2771SDaniel P. Berrange Error *local_err = NULL; 2123215a2771SDaniel P. Berrange char *passwd_path = NULL; 2124215a2771SDaniel P. Berrange pid_t pid; 2125215a2771SDaniel P. Berrange int status; 2126215a2771SDaniel P. Berrange int datafd[2] = { -1, -1 }; 2127215a2771SDaniel P. Berrange char *rawpasswddata = NULL; 2128215a2771SDaniel P. Berrange size_t rawpasswdlen; 2129215a2771SDaniel P. Berrange char *chpasswddata = NULL; 2130215a2771SDaniel P. Berrange size_t chpasswdlen; 2131215a2771SDaniel P. Berrange 2132920639caSDaniel P. Berrange rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 2133920639caSDaniel P. Berrange if (!rawpasswddata) { 2134920639caSDaniel P. Berrange return; 2135920639caSDaniel P. Berrange } 2136215a2771SDaniel P. Berrange rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 2137215a2771SDaniel P. Berrange rawpasswddata[rawpasswdlen] = '\0'; 2138215a2771SDaniel P. Berrange 2139215a2771SDaniel P. Berrange if (strchr(rawpasswddata, '\n')) { 2140215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in raw password"); 2141215a2771SDaniel P. Berrange goto out; 2142215a2771SDaniel P. Berrange } 2143215a2771SDaniel P. Berrange 2144215a2771SDaniel P. Berrange if (strchr(username, '\n') || 2145215a2771SDaniel P. Berrange strchr(username, ':')) { 2146215a2771SDaniel P. Berrange error_setg(errp, "forbidden characters in username"); 2147215a2771SDaniel P. Berrange goto out; 2148215a2771SDaniel P. Berrange } 2149215a2771SDaniel P. Berrange 21504fd0642eSAlexander Ivanov #ifdef __FreeBSD__ 21514fd0642eSAlexander Ivanov chpasswddata = g_strdup(rawpasswddata); 21524fd0642eSAlexander Ivanov passwd_path = g_find_program_in_path("pw"); 21534fd0642eSAlexander Ivanov #else 2154215a2771SDaniel P. Berrange chpasswddata = g_strdup_printf("%s:%s\n", username, rawpasswddata); 2155215a2771SDaniel P. Berrange passwd_path = g_find_program_in_path("chpasswd"); 21564fd0642eSAlexander Ivanov #endif 21574fd0642eSAlexander Ivanov 21584fd0642eSAlexander Ivanov chpasswdlen = strlen(chpasswddata); 2159215a2771SDaniel P. Berrange 2160215a2771SDaniel P. Berrange if (!passwd_path) { 2161215a2771SDaniel P. Berrange error_setg(errp, "cannot find 'passwd' program in PATH"); 2162215a2771SDaniel P. Berrange goto out; 2163215a2771SDaniel P. Berrange } 2164215a2771SDaniel P. Berrange 2165ed78331dSMarc-André Lureau if (!g_unix_open_pipe(datafd, FD_CLOEXEC, NULL)) { 2166215a2771SDaniel P. Berrange error_setg(errp, "cannot create pipe FDs"); 2167215a2771SDaniel P. Berrange goto out; 2168215a2771SDaniel P. Berrange } 2169215a2771SDaniel P. Berrange 2170215a2771SDaniel P. Berrange pid = fork(); 2171215a2771SDaniel P. Berrange if (pid == 0) { 2172215a2771SDaniel P. Berrange close(datafd[1]); 2173215a2771SDaniel P. Berrange /* child */ 2174215a2771SDaniel P. Berrange setsid(); 2175215a2771SDaniel P. Berrange dup2(datafd[0], 0); 2176215a2771SDaniel P. Berrange reopen_fd_to_null(1); 2177215a2771SDaniel P. Berrange reopen_fd_to_null(2); 2178215a2771SDaniel P. Berrange 21794fd0642eSAlexander Ivanov #ifdef __FreeBSD__ 21804fd0642eSAlexander Ivanov const char *h_arg; 21814fd0642eSAlexander Ivanov h_arg = (crypted) ? "-H" : "-h"; 21824fd0642eSAlexander Ivanov execl(passwd_path, "pw", "usermod", "-n", username, h_arg, "0", NULL); 21834fd0642eSAlexander Ivanov #else 2184215a2771SDaniel P. Berrange if (crypted) { 2185fcc41961SMarc-André Lureau execl(passwd_path, "chpasswd", "-e", NULL); 2186215a2771SDaniel P. Berrange } else { 2187fcc41961SMarc-André Lureau execl(passwd_path, "chpasswd", NULL); 2188215a2771SDaniel P. Berrange } 21894fd0642eSAlexander Ivanov #endif 2190215a2771SDaniel P. Berrange _exit(EXIT_FAILURE); 2191215a2771SDaniel P. Berrange } else if (pid < 0) { 2192215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "failed to create child process"); 2193215a2771SDaniel P. Berrange goto out; 2194215a2771SDaniel P. Berrange } 2195215a2771SDaniel P. Berrange close(datafd[0]); 2196215a2771SDaniel P. Berrange datafd[0] = -1; 2197215a2771SDaniel P. Berrange 2198215a2771SDaniel P. Berrange if (qemu_write_full(datafd[1], chpasswddata, chpasswdlen) != chpasswdlen) { 2199215a2771SDaniel P. Berrange error_setg_errno(errp, errno, "cannot write new account password"); 2200215a2771SDaniel P. Berrange goto out; 2201215a2771SDaniel P. Berrange } 2202215a2771SDaniel P. Berrange close(datafd[1]); 2203215a2771SDaniel P. Berrange datafd[1] = -1; 2204215a2771SDaniel P. Berrange 2205215a2771SDaniel P. Berrange ga_wait_child(pid, &status, &local_err); 2206215a2771SDaniel P. Berrange if (local_err) { 2207215a2771SDaniel P. Berrange error_propagate(errp, local_err); 2208215a2771SDaniel P. Berrange goto out; 2209215a2771SDaniel P. Berrange } 2210215a2771SDaniel P. Berrange 2211215a2771SDaniel P. Berrange if (!WIFEXITED(status)) { 2212215a2771SDaniel P. Berrange error_setg(errp, "child process has terminated abnormally"); 2213215a2771SDaniel P. Berrange goto out; 2214215a2771SDaniel P. Berrange } 2215215a2771SDaniel P. Berrange 2216215a2771SDaniel P. Berrange if (WEXITSTATUS(status)) { 2217215a2771SDaniel P. Berrange error_setg(errp, "child process has failed to set user password"); 2218215a2771SDaniel P. Berrange goto out; 2219215a2771SDaniel P. Berrange } 2220215a2771SDaniel P. Berrange 2221215a2771SDaniel P. Berrange out: 2222215a2771SDaniel P. Berrange g_free(chpasswddata); 2223215a2771SDaniel P. Berrange g_free(rawpasswddata); 2224215a2771SDaniel P. Berrange g_free(passwd_path); 2225215a2771SDaniel P. Berrange if (datafd[0] != -1) { 2226215a2771SDaniel P. Berrange close(datafd[0]); 2227215a2771SDaniel P. Berrange } 2228215a2771SDaniel P. Berrange if (datafd[1] != -1) { 2229215a2771SDaniel P. Berrange close(datafd[1]); 2230215a2771SDaniel P. Berrange } 2231215a2771SDaniel P. Berrange } 22324fd0642eSAlexander Ivanov #else /* __linux__ || __FreeBSD__ */ 22334fd0642eSAlexander Ivanov void qmp_guest_set_user_password(const char *username, 22344fd0642eSAlexander Ivanov const char *password, 22354fd0642eSAlexander Ivanov bool crypted, 22364fd0642eSAlexander Ivanov Error **errp) 22374fd0642eSAlexander Ivanov { 22384fd0642eSAlexander Ivanov error_setg(errp, QERR_UNSUPPORTED); 22394fd0642eSAlexander Ivanov } 22404fd0642eSAlexander Ivanov #endif /* __linux__ || __FreeBSD__ */ 2241215a2771SDaniel P. Berrange 22424fd0642eSAlexander Ivanov #ifdef __linux__ 2243bd240fcaSzhanghailiang static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, 2244bd240fcaSzhanghailiang int size, Error **errp) 2245bd240fcaSzhanghailiang { 2246bd240fcaSzhanghailiang int fd; 2247bd240fcaSzhanghailiang int res; 2248bd240fcaSzhanghailiang 2249bd240fcaSzhanghailiang errno = 0; 2250bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_RDONLY); 2251bd240fcaSzhanghailiang if (fd == -1) { 2252bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2253bd240fcaSzhanghailiang return; 2254bd240fcaSzhanghailiang } 2255bd240fcaSzhanghailiang 2256bd240fcaSzhanghailiang res = pread(fd, buf, size, 0); 2257bd240fcaSzhanghailiang if (res == -1) { 2258bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); 2259bd240fcaSzhanghailiang } else if (res == 0) { 2260bd240fcaSzhanghailiang error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathname); 2261bd240fcaSzhanghailiang } 2262bd240fcaSzhanghailiang close(fd); 2263bd240fcaSzhanghailiang } 2264bd240fcaSzhanghailiang 2265bd240fcaSzhanghailiang static void ga_write_sysfs_file(int dirfd, const char *pathname, 2266bd240fcaSzhanghailiang const char *buf, int size, Error **errp) 2267bd240fcaSzhanghailiang { 2268bd240fcaSzhanghailiang int fd; 2269bd240fcaSzhanghailiang 2270bd240fcaSzhanghailiang errno = 0; 2271bd240fcaSzhanghailiang fd = openat(dirfd, pathname, O_WRONLY); 2272bd240fcaSzhanghailiang if (fd == -1) { 2273bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); 2274bd240fcaSzhanghailiang return; 2275bd240fcaSzhanghailiang } 2276bd240fcaSzhanghailiang 2277bd240fcaSzhanghailiang if (pwrite(fd, buf, size, 0) == -1) { 2278bd240fcaSzhanghailiang error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname); 2279bd240fcaSzhanghailiang } 2280bd240fcaSzhanghailiang 2281bd240fcaSzhanghailiang close(fd); 2282bd240fcaSzhanghailiang } 2283bd240fcaSzhanghailiang 2284bd240fcaSzhanghailiang /* Transfer online/offline status between @mem_blk and the guest system. 2285bd240fcaSzhanghailiang * 2286bd240fcaSzhanghailiang * On input either @errp or *@errp must be NULL. 2287bd240fcaSzhanghailiang * 2288bd240fcaSzhanghailiang * In system-to-@mem_blk direction, the following @mem_blk fields are accessed: 2289bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2290bd240fcaSzhanghailiang * - W: mem_blk->online 2291bd240fcaSzhanghailiang * - W: mem_blk->can_offline 2292bd240fcaSzhanghailiang * 2293bd240fcaSzhanghailiang * In @mem_blk-to-system direction, the following @mem_blk fields are accessed: 2294bd240fcaSzhanghailiang * - R: mem_blk->phys_index 2295bd240fcaSzhanghailiang * - R: mem_blk->online 2296bd240fcaSzhanghailiang *- R: mem_blk->can_offline 2297bd240fcaSzhanghailiang * Written members remain unmodified on error. 2298bd240fcaSzhanghailiang */ 2299bd240fcaSzhanghailiang static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memblk, 2300bd240fcaSzhanghailiang GuestMemoryBlockResponse *result, 2301bd240fcaSzhanghailiang Error **errp) 2302bd240fcaSzhanghailiang { 2303bd240fcaSzhanghailiang char *dirpath; 2304bd240fcaSzhanghailiang int dirfd; 2305bd240fcaSzhanghailiang char *status; 2306bd240fcaSzhanghailiang Error *local_err = NULL; 2307bd240fcaSzhanghailiang 2308bd240fcaSzhanghailiang if (!sys2memblk) { 2309bd240fcaSzhanghailiang DIR *dp; 2310bd240fcaSzhanghailiang 2311bd240fcaSzhanghailiang if (!result) { 2312bd240fcaSzhanghailiang error_setg(errp, "Internal error, 'result' should not be NULL"); 2313bd240fcaSzhanghailiang return; 2314bd240fcaSzhanghailiang } 2315bd240fcaSzhanghailiang errno = 0; 2316bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2317bd240fcaSzhanghailiang /* if there is no 'memory' directory in sysfs, 2318bd240fcaSzhanghailiang * we think this VM does not support online/offline memory block, 2319bd240fcaSzhanghailiang * any other solution? 2320bd240fcaSzhanghailiang */ 23219879f5acSPhilippe Mathieu-Daudé if (!dp) { 23229879f5acSPhilippe Mathieu-Daudé if (errno == ENOENT) { 2323bd240fcaSzhanghailiang result->response = 2324bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 23259879f5acSPhilippe Mathieu-Daudé } 2326bd240fcaSzhanghailiang goto out1; 2327bd240fcaSzhanghailiang } 2328bd240fcaSzhanghailiang closedir(dp); 2329bd240fcaSzhanghailiang } 2330bd240fcaSzhanghailiang 2331bd240fcaSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/memory%" PRId64 "/", 2332bd240fcaSzhanghailiang mem_blk->phys_index); 2333bd240fcaSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2334bd240fcaSzhanghailiang if (dirfd == -1) { 2335bd240fcaSzhanghailiang if (sys2memblk) { 2336bd240fcaSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2337bd240fcaSzhanghailiang } else { 2338bd240fcaSzhanghailiang if (errno == ENOENT) { 2339bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_FOUND; 2340bd240fcaSzhanghailiang } else { 2341bd240fcaSzhanghailiang result->response = 2342bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2343bd240fcaSzhanghailiang } 2344bd240fcaSzhanghailiang } 2345bd240fcaSzhanghailiang g_free(dirpath); 2346bd240fcaSzhanghailiang goto out1; 2347bd240fcaSzhanghailiang } 2348bd240fcaSzhanghailiang g_free(dirpath); 2349bd240fcaSzhanghailiang 2350bd240fcaSzhanghailiang status = g_malloc0(10); 2351bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); 2352bd240fcaSzhanghailiang if (local_err) { 2353bd240fcaSzhanghailiang /* treat with sysfs file that not exist in old kernel */ 2354bd240fcaSzhanghailiang if (errno == ENOENT) { 2355bd240fcaSzhanghailiang error_free(local_err); 2356bd240fcaSzhanghailiang if (sys2memblk) { 2357bd240fcaSzhanghailiang mem_blk->online = true; 2358bd240fcaSzhanghailiang mem_blk->can_offline = false; 2359bd240fcaSzhanghailiang } else if (!mem_blk->online) { 2360bd240fcaSzhanghailiang result->response = 2361bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED; 2362bd240fcaSzhanghailiang } 2363bd240fcaSzhanghailiang } else { 2364bd240fcaSzhanghailiang if (sys2memblk) { 2365bd240fcaSzhanghailiang error_propagate(errp, local_err); 2366bd240fcaSzhanghailiang } else { 2367b368123dSMarkus Armbruster error_free(local_err); 2368bd240fcaSzhanghailiang result->response = 2369bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2370bd240fcaSzhanghailiang } 2371bd240fcaSzhanghailiang } 2372bd240fcaSzhanghailiang goto out2; 2373bd240fcaSzhanghailiang } 2374bd240fcaSzhanghailiang 2375bd240fcaSzhanghailiang if (sys2memblk) { 2376bd240fcaSzhanghailiang char removable = '0'; 2377bd240fcaSzhanghailiang 2378bd240fcaSzhanghailiang mem_blk->online = (strncmp(status, "online", 6) == 0); 2379bd240fcaSzhanghailiang 2380bd240fcaSzhanghailiang ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); 2381bd240fcaSzhanghailiang if (local_err) { 238267cc32ebSVeres Lajos /* if no 'removable' file, it doesn't support offline mem blk */ 2383bd240fcaSzhanghailiang if (errno == ENOENT) { 2384bd240fcaSzhanghailiang error_free(local_err); 2385bd240fcaSzhanghailiang mem_blk->can_offline = false; 2386bd240fcaSzhanghailiang } else { 2387bd240fcaSzhanghailiang error_propagate(errp, local_err); 2388bd240fcaSzhanghailiang } 2389bd240fcaSzhanghailiang } else { 2390bd240fcaSzhanghailiang mem_blk->can_offline = (removable != '0'); 2391bd240fcaSzhanghailiang } 2392bd240fcaSzhanghailiang } else { 2393bd240fcaSzhanghailiang if (mem_blk->online != (strncmp(status, "online", 6) == 0)) { 23947064024dSMarc-André Lureau const char *new_state = mem_blk->online ? "online" : "offline"; 2395bd240fcaSzhanghailiang 2396bd240fcaSzhanghailiang ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_state), 2397bd240fcaSzhanghailiang &local_err); 2398bd240fcaSzhanghailiang if (local_err) { 2399bd240fcaSzhanghailiang error_free(local_err); 2400bd240fcaSzhanghailiang result->response = 2401bd240fcaSzhanghailiang GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; 2402bd240fcaSzhanghailiang goto out2; 2403bd240fcaSzhanghailiang } 2404bd240fcaSzhanghailiang 2405bd240fcaSzhanghailiang result->response = GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; 2406bd240fcaSzhanghailiang result->has_error_code = false; 2407bd240fcaSzhanghailiang } /* otherwise pretend successful re-(on|off)-lining */ 2408bd240fcaSzhanghailiang } 2409bd240fcaSzhanghailiang g_free(status); 2410bd240fcaSzhanghailiang close(dirfd); 2411bd240fcaSzhanghailiang return; 2412bd240fcaSzhanghailiang 2413bd240fcaSzhanghailiang out2: 2414bd240fcaSzhanghailiang g_free(status); 2415bd240fcaSzhanghailiang close(dirfd); 2416bd240fcaSzhanghailiang out1: 2417bd240fcaSzhanghailiang if (!sys2memblk) { 2418bd240fcaSzhanghailiang result->has_error_code = true; 2419bd240fcaSzhanghailiang result->error_code = errno; 2420bd240fcaSzhanghailiang } 2421bd240fcaSzhanghailiang } 2422bd240fcaSzhanghailiang 2423a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2424a065aaa9Szhanghailiang { 2425c3033fd3SEric Blake GuestMemoryBlockList *head, **tail; 2426bd240fcaSzhanghailiang Error *local_err = NULL; 2427bd240fcaSzhanghailiang struct dirent *de; 2428bd240fcaSzhanghailiang DIR *dp; 2429bd240fcaSzhanghailiang 2430bd240fcaSzhanghailiang head = NULL; 2431c3033fd3SEric Blake tail = &head; 2432bd240fcaSzhanghailiang 2433bd240fcaSzhanghailiang dp = opendir("/sys/devices/system/memory/"); 2434bd240fcaSzhanghailiang if (!dp) { 2435f693fe6eSMichael Roth /* it's ok if this happens to be a system that doesn't expose 2436f693fe6eSMichael Roth * memory blocks via sysfs, but otherwise we should report 2437f693fe6eSMichael Roth * an error 2438f693fe6eSMichael Roth */ 2439f693fe6eSMichael Roth if (errno != ENOENT) { 2440bd240fcaSzhanghailiang error_setg_errno(errp, errno, "Can't open directory" 24419af9e0feSMarkus Armbruster "\"/sys/devices/system/memory/\""); 2442f693fe6eSMichael Roth } 2443bd240fcaSzhanghailiang return NULL; 2444bd240fcaSzhanghailiang } 2445bd240fcaSzhanghailiang 2446bd240fcaSzhanghailiang /* Note: the phys_index of memory block may be discontinuous, 2447bd240fcaSzhanghailiang * this is because a memblk is the unit of the Sparse Memory design, which 2448bd240fcaSzhanghailiang * allows discontinuous memory ranges (ex. NUMA), so here we should 2449bd240fcaSzhanghailiang * traverse the memory block directory. 2450bd240fcaSzhanghailiang */ 2451bd240fcaSzhanghailiang while ((de = readdir(dp)) != NULL) { 2452bd240fcaSzhanghailiang GuestMemoryBlock *mem_blk; 2453bd240fcaSzhanghailiang 2454bd240fcaSzhanghailiang if ((strncmp(de->d_name, "memory", 6) != 0) || 2455bd240fcaSzhanghailiang !(de->d_type & DT_DIR)) { 2456bd240fcaSzhanghailiang continue; 2457bd240fcaSzhanghailiang } 2458bd240fcaSzhanghailiang 2459bd240fcaSzhanghailiang mem_blk = g_malloc0(sizeof *mem_blk); 2460bd240fcaSzhanghailiang /* The d_name is "memoryXXX", phys_index is block id, same as XXX */ 2461bd240fcaSzhanghailiang mem_blk->phys_index = strtoul(&de->d_name[6], NULL, 10); 2462bd240fcaSzhanghailiang mem_blk->has_can_offline = true; /* lolspeak ftw */ 2463bd240fcaSzhanghailiang transfer_memory_block(mem_blk, true, NULL, &local_err); 24644155c998SMarkus Armbruster if (local_err) { 24654155c998SMarkus Armbruster break; 24664155c998SMarkus Armbruster } 2467bd240fcaSzhanghailiang 2468c3033fd3SEric Blake QAPI_LIST_APPEND(tail, mem_blk); 2469bd240fcaSzhanghailiang } 2470bd240fcaSzhanghailiang 2471bd240fcaSzhanghailiang closedir(dp); 2472bd240fcaSzhanghailiang if (local_err == NULL) { 2473bd240fcaSzhanghailiang /* there's no guest with zero memory blocks */ 2474bd240fcaSzhanghailiang if (head == NULL) { 2475bd240fcaSzhanghailiang error_setg(errp, "guest reported zero memory blocks!"); 2476bd240fcaSzhanghailiang } 2477bd240fcaSzhanghailiang return head; 2478bd240fcaSzhanghailiang } 2479bd240fcaSzhanghailiang 2480bd240fcaSzhanghailiang qapi_free_GuestMemoryBlockList(head); 2481bd240fcaSzhanghailiang error_propagate(errp, local_err); 2482a065aaa9Szhanghailiang return NULL; 2483a065aaa9Szhanghailiang } 2484a065aaa9Szhanghailiang 2485a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2486a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2487a065aaa9Szhanghailiang { 2488c3033fd3SEric Blake GuestMemoryBlockResponseList *head, **tail; 248932ca7927Szhanghailiang Error *local_err = NULL; 249032ca7927Szhanghailiang 249132ca7927Szhanghailiang head = NULL; 2492c3033fd3SEric Blake tail = &head; 249332ca7927Szhanghailiang 249432ca7927Szhanghailiang while (mem_blks != NULL) { 249532ca7927Szhanghailiang GuestMemoryBlockResponse *result; 249632ca7927Szhanghailiang GuestMemoryBlock *current_mem_blk = mem_blks->value; 249732ca7927Szhanghailiang 249832ca7927Szhanghailiang result = g_malloc0(sizeof(*result)); 249932ca7927Szhanghailiang result->phys_index = current_mem_blk->phys_index; 250032ca7927Szhanghailiang transfer_memory_block(current_mem_blk, false, result, &local_err); 250132ca7927Szhanghailiang if (local_err) { /* should never happen */ 250232ca7927Szhanghailiang goto err; 250332ca7927Szhanghailiang } 250432ca7927Szhanghailiang 2505c3033fd3SEric Blake QAPI_LIST_APPEND(tail, result); 250632ca7927Szhanghailiang mem_blks = mem_blks->next; 250732ca7927Szhanghailiang } 250832ca7927Szhanghailiang 250932ca7927Szhanghailiang return head; 251032ca7927Szhanghailiang err: 251132ca7927Szhanghailiang qapi_free_GuestMemoryBlockResponseList(head); 251232ca7927Szhanghailiang error_propagate(errp, local_err); 2513a065aaa9Szhanghailiang return NULL; 2514a065aaa9Szhanghailiang } 2515a065aaa9Szhanghailiang 2516a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2517a065aaa9Szhanghailiang { 2518ef82b60bSzhanghailiang Error *local_err = NULL; 2519ef82b60bSzhanghailiang char *dirpath; 2520ef82b60bSzhanghailiang int dirfd; 2521ef82b60bSzhanghailiang char *buf; 2522ef82b60bSzhanghailiang GuestMemoryBlockInfo *info; 2523ef82b60bSzhanghailiang 2524ef82b60bSzhanghailiang dirpath = g_strdup_printf("/sys/devices/system/memory/"); 2525ef82b60bSzhanghailiang dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); 2526ef82b60bSzhanghailiang if (dirfd == -1) { 2527ef82b60bSzhanghailiang error_setg_errno(errp, errno, "open(\"%s\")", dirpath); 2528ef82b60bSzhanghailiang g_free(dirpath); 2529a065aaa9Szhanghailiang return NULL; 2530a065aaa9Szhanghailiang } 2531ef82b60bSzhanghailiang g_free(dirpath); 2532ef82b60bSzhanghailiang 2533ef82b60bSzhanghailiang buf = g_malloc0(20); 2534ef82b60bSzhanghailiang ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); 25358ce1ee46SShannon Zhao close(dirfd); 2536ef82b60bSzhanghailiang if (local_err) { 2537ef82b60bSzhanghailiang g_free(buf); 2538ef82b60bSzhanghailiang error_propagate(errp, local_err); 2539ef82b60bSzhanghailiang return NULL; 2540ef82b60bSzhanghailiang } 2541ef82b60bSzhanghailiang 2542ef82b60bSzhanghailiang info = g_new0(GuestMemoryBlockInfo, 1); 2543ef82b60bSzhanghailiang info->size = strtol(buf, NULL, 16); /* the unit is bytes */ 2544ef82b60bSzhanghailiang 2545ef82b60bSzhanghailiang g_free(buf); 2546ef82b60bSzhanghailiang 2547ef82b60bSzhanghailiang return info; 2548ef82b60bSzhanghailiang } 2549a065aaa9Szhanghailiang 25503569664eSluzhipeng #define MAX_NAME_LEN 128 25513569664eSluzhipeng static GuestDiskStatsInfoList *guest_get_diskstats(Error **errp) 25523569664eSluzhipeng { 25533569664eSluzhipeng #ifdef CONFIG_LINUX 25543569664eSluzhipeng GuestDiskStatsInfoList *head = NULL, **tail = &head; 25553569664eSluzhipeng const char *diskstats = "/proc/diskstats"; 25563569664eSluzhipeng FILE *fp; 25573569664eSluzhipeng size_t n; 25583569664eSluzhipeng char *line = NULL; 25593569664eSluzhipeng 25603569664eSluzhipeng fp = fopen(diskstats, "r"); 25613569664eSluzhipeng if (fp == NULL) { 25623569664eSluzhipeng error_setg_errno(errp, errno, "open(\"%s\")", diskstats); 25633569664eSluzhipeng return NULL; 25643569664eSluzhipeng } 25653569664eSluzhipeng 25663569664eSluzhipeng while (getline(&line, &n, fp) != -1) { 25673569664eSluzhipeng g_autofree GuestDiskStatsInfo *diskstatinfo = NULL; 25683569664eSluzhipeng g_autofree GuestDiskStats *diskstat = NULL; 25693569664eSluzhipeng char dev_name[MAX_NAME_LEN]; 25703569664eSluzhipeng unsigned int ios_pgr, tot_ticks, rq_ticks, wr_ticks, dc_ticks, fl_ticks; 25713569664eSluzhipeng unsigned long rd_ios, rd_merges_or_rd_sec, rd_ticks_or_wr_sec, wr_ios; 25723569664eSluzhipeng unsigned long wr_merges, rd_sec_or_wr_ios, wr_sec; 25733569664eSluzhipeng unsigned long dc_ios, dc_merges, dc_sec, fl_ios; 25743569664eSluzhipeng unsigned int major, minor; 25753569664eSluzhipeng int i; 25763569664eSluzhipeng 25773569664eSluzhipeng i = sscanf(line, "%u %u %s %lu %lu %lu" 25783569664eSluzhipeng "%lu %lu %lu %lu %u %u %u %u" 25793569664eSluzhipeng "%lu %lu %lu %u %lu %u", 25803569664eSluzhipeng &major, &minor, dev_name, 25813569664eSluzhipeng &rd_ios, &rd_merges_or_rd_sec, &rd_sec_or_wr_ios, 25823569664eSluzhipeng &rd_ticks_or_wr_sec, &wr_ios, &wr_merges, &wr_sec, 25833569664eSluzhipeng &wr_ticks, &ios_pgr, &tot_ticks, &rq_ticks, 25843569664eSluzhipeng &dc_ios, &dc_merges, &dc_sec, &dc_ticks, 25853569664eSluzhipeng &fl_ios, &fl_ticks); 25863569664eSluzhipeng 25873569664eSluzhipeng if (i < 7) { 25883569664eSluzhipeng continue; 25893569664eSluzhipeng } 25903569664eSluzhipeng 25913569664eSluzhipeng diskstatinfo = g_new0(GuestDiskStatsInfo, 1); 25923569664eSluzhipeng diskstatinfo->name = g_strdup(dev_name); 25933569664eSluzhipeng diskstatinfo->major = major; 25943569664eSluzhipeng diskstatinfo->minor = minor; 25953569664eSluzhipeng 25963569664eSluzhipeng diskstat = g_new0(GuestDiskStats, 1); 25973569664eSluzhipeng if (i == 7) { 25983569664eSluzhipeng diskstat->has_read_ios = true; 25993569664eSluzhipeng diskstat->read_ios = rd_ios; 26003569664eSluzhipeng diskstat->has_read_sectors = true; 26013569664eSluzhipeng diskstat->read_sectors = rd_merges_or_rd_sec; 26023569664eSluzhipeng diskstat->has_write_ios = true; 26033569664eSluzhipeng diskstat->write_ios = rd_sec_or_wr_ios; 26043569664eSluzhipeng diskstat->has_write_sectors = true; 26053569664eSluzhipeng diskstat->write_sectors = rd_ticks_or_wr_sec; 26063569664eSluzhipeng } 26073569664eSluzhipeng if (i >= 14) { 26083569664eSluzhipeng diskstat->has_read_ios = true; 26093569664eSluzhipeng diskstat->read_ios = rd_ios; 26103569664eSluzhipeng diskstat->has_read_sectors = true; 26113569664eSluzhipeng diskstat->read_sectors = rd_sec_or_wr_ios; 26123569664eSluzhipeng diskstat->has_read_merges = true; 26133569664eSluzhipeng diskstat->read_merges = rd_merges_or_rd_sec; 26143569664eSluzhipeng diskstat->has_read_ticks = true; 26153569664eSluzhipeng diskstat->read_ticks = rd_ticks_or_wr_sec; 26163569664eSluzhipeng diskstat->has_write_ios = true; 26173569664eSluzhipeng diskstat->write_ios = wr_ios; 26183569664eSluzhipeng diskstat->has_write_sectors = true; 26193569664eSluzhipeng diskstat->write_sectors = wr_sec; 26203569664eSluzhipeng diskstat->has_write_merges = true; 26213569664eSluzhipeng diskstat->write_merges = wr_merges; 26223569664eSluzhipeng diskstat->has_write_ticks = true; 26233569664eSluzhipeng diskstat->write_ticks = wr_ticks; 26243569664eSluzhipeng diskstat->has_ios_pgr = true; 26253569664eSluzhipeng diskstat->ios_pgr = ios_pgr; 26263569664eSluzhipeng diskstat->has_total_ticks = true; 26273569664eSluzhipeng diskstat->total_ticks = tot_ticks; 26283569664eSluzhipeng diskstat->has_weight_ticks = true; 26293569664eSluzhipeng diskstat->weight_ticks = rq_ticks; 26303569664eSluzhipeng } 26313569664eSluzhipeng if (i >= 18) { 26323569664eSluzhipeng diskstat->has_discard_ios = true; 26333569664eSluzhipeng diskstat->discard_ios = dc_ios; 26343569664eSluzhipeng diskstat->has_discard_merges = true; 26353569664eSluzhipeng diskstat->discard_merges = dc_merges; 26363569664eSluzhipeng diskstat->has_discard_sectors = true; 26373569664eSluzhipeng diskstat->discard_sectors = dc_sec; 26383569664eSluzhipeng diskstat->has_discard_ticks = true; 26393569664eSluzhipeng diskstat->discard_ticks = dc_ticks; 26403569664eSluzhipeng } 26413569664eSluzhipeng if (i >= 20) { 26423569664eSluzhipeng diskstat->has_flush_ios = true; 26433569664eSluzhipeng diskstat->flush_ios = fl_ios; 26443569664eSluzhipeng diskstat->has_flush_ticks = true; 26453569664eSluzhipeng diskstat->flush_ticks = fl_ticks; 26463569664eSluzhipeng } 26473569664eSluzhipeng 26483569664eSluzhipeng diskstatinfo->stats = g_steal_pointer(&diskstat); 26493569664eSluzhipeng QAPI_LIST_APPEND(tail, diskstatinfo); 26503569664eSluzhipeng diskstatinfo = NULL; 26513569664eSluzhipeng } 26523569664eSluzhipeng free(line); 26533569664eSluzhipeng fclose(fp); 26543569664eSluzhipeng return head; 26553569664eSluzhipeng #else 26563569664eSluzhipeng g_debug("disk stats reporting available only for Linux"); 26573569664eSluzhipeng return NULL; 26583569664eSluzhipeng #endif 26593569664eSluzhipeng } 26603569664eSluzhipeng 26613569664eSluzhipeng GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 26623569664eSluzhipeng { 26633569664eSluzhipeng return guest_get_diskstats(errp); 26643569664eSluzhipeng } 26653569664eSluzhipeng 26661db8a0b0Szhenwei pi GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 26671db8a0b0Szhenwei pi { 26681db8a0b0Szhenwei pi GuestCpuStatsList *head = NULL, **tail = &head; 26691db8a0b0Szhenwei pi const char *cpustats = "/proc/stat"; 26701db8a0b0Szhenwei pi int clk_tck = sysconf(_SC_CLK_TCK); 26711db8a0b0Szhenwei pi FILE *fp; 26721db8a0b0Szhenwei pi size_t n; 26731db8a0b0Szhenwei pi char *line = NULL; 26741db8a0b0Szhenwei pi 26751db8a0b0Szhenwei pi fp = fopen(cpustats, "r"); 26761db8a0b0Szhenwei pi if (fp == NULL) { 26771db8a0b0Szhenwei pi error_setg_errno(errp, errno, "open(\"%s\")", cpustats); 26781db8a0b0Szhenwei pi return NULL; 26791db8a0b0Szhenwei pi } 26801db8a0b0Szhenwei pi 26811db8a0b0Szhenwei pi while (getline(&line, &n, fp) != -1) { 26821db8a0b0Szhenwei pi GuestCpuStats *cpustat = NULL; 26831db8a0b0Szhenwei pi GuestLinuxCpuStats *linuxcpustat; 26841db8a0b0Szhenwei pi int i; 26851db8a0b0Szhenwei pi unsigned long user, system, idle, iowait, irq, softirq, steal, guest; 26861db8a0b0Szhenwei pi unsigned long nice, guest_nice; 26871db8a0b0Szhenwei pi char name[64]; 26881db8a0b0Szhenwei pi 26891db8a0b0Szhenwei pi i = sscanf(line, "%s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", 26901db8a0b0Szhenwei pi name, &user, &nice, &system, &idle, &iowait, &irq, &softirq, 26911db8a0b0Szhenwei pi &steal, &guest, &guest_nice); 26921db8a0b0Szhenwei pi 26931db8a0b0Szhenwei pi /* drop "cpu 1 2 3 ...", get "cpuX 1 2 3 ..." only */ 26941db8a0b0Szhenwei pi if ((i == EOF) || strncmp(name, "cpu", 3) || (name[3] == '\0')) { 26951db8a0b0Szhenwei pi continue; 26961db8a0b0Szhenwei pi } 26971db8a0b0Szhenwei pi 26981db8a0b0Szhenwei pi if (i < 5) { 26991db8a0b0Szhenwei pi slog("Parsing cpu stat from %s failed, see \"man proc\"", cpustats); 27001db8a0b0Szhenwei pi break; 27011db8a0b0Szhenwei pi } 27021db8a0b0Szhenwei pi 27031db8a0b0Szhenwei pi cpustat = g_new0(GuestCpuStats, 1); 27041db8a0b0Szhenwei pi cpustat->type = GUEST_CPU_STATS_TYPE_LINUX; 27051db8a0b0Szhenwei pi 27061db8a0b0Szhenwei pi linuxcpustat = &cpustat->u.q_linux; 27071db8a0b0Szhenwei pi linuxcpustat->cpu = atoi(&name[3]); 27081db8a0b0Szhenwei pi linuxcpustat->user = user * 1000 / clk_tck; 27091db8a0b0Szhenwei pi linuxcpustat->nice = nice * 1000 / clk_tck; 27101db8a0b0Szhenwei pi linuxcpustat->system = system * 1000 / clk_tck; 27111db8a0b0Szhenwei pi linuxcpustat->idle = idle * 1000 / clk_tck; 27121db8a0b0Szhenwei pi 27131db8a0b0Szhenwei pi if (i > 5) { 27141db8a0b0Szhenwei pi linuxcpustat->has_iowait = true; 27151db8a0b0Szhenwei pi linuxcpustat->iowait = iowait * 1000 / clk_tck; 27161db8a0b0Szhenwei pi } 27171db8a0b0Szhenwei pi 27181db8a0b0Szhenwei pi if (i > 6) { 27191db8a0b0Szhenwei pi linuxcpustat->has_irq = true; 27201db8a0b0Szhenwei pi linuxcpustat->irq = irq * 1000 / clk_tck; 27211db8a0b0Szhenwei pi linuxcpustat->has_softirq = true; 27221db8a0b0Szhenwei pi linuxcpustat->softirq = softirq * 1000 / clk_tck; 27231db8a0b0Szhenwei pi } 27241db8a0b0Szhenwei pi 27251db8a0b0Szhenwei pi if (i > 8) { 27261db8a0b0Szhenwei pi linuxcpustat->has_steal = true; 27271db8a0b0Szhenwei pi linuxcpustat->steal = steal * 1000 / clk_tck; 27281db8a0b0Szhenwei pi } 27291db8a0b0Szhenwei pi 27301db8a0b0Szhenwei pi if (i > 9) { 27311db8a0b0Szhenwei pi linuxcpustat->has_guest = true; 27321db8a0b0Szhenwei pi linuxcpustat->guest = guest * 1000 / clk_tck; 27331db8a0b0Szhenwei pi } 27341db8a0b0Szhenwei pi 27351db8a0b0Szhenwei pi if (i > 10) { 27361db8a0b0Szhenwei pi linuxcpustat->has_guest = true; 27371db8a0b0Szhenwei pi linuxcpustat->guest = guest * 1000 / clk_tck; 27381db8a0b0Szhenwei pi linuxcpustat->has_guestnice = true; 27391db8a0b0Szhenwei pi linuxcpustat->guestnice = guest_nice * 1000 / clk_tck; 27401db8a0b0Szhenwei pi } 27411db8a0b0Szhenwei pi 27421db8a0b0Szhenwei pi QAPI_LIST_APPEND(tail, cpustat); 27431db8a0b0Szhenwei pi } 27441db8a0b0Szhenwei pi 27451db8a0b0Szhenwei pi free(line); 27461db8a0b0Szhenwei pi fclose(fp); 27471db8a0b0Szhenwei pi return head; 27481db8a0b0Szhenwei pi } 27491db8a0b0Szhenwei pi 2750e72c3f2eSMichael Roth #else /* defined(__linux__) */ 2751e72c3f2eSMichael Roth 275277dbc81bSMarkus Armbruster void qmp_guest_suspend_disk(Error **errp) 2753e72c3f2eSMichael Roth { 2754c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2755e72c3f2eSMichael Roth } 2756e72c3f2eSMichael Roth 275777dbc81bSMarkus Armbruster void qmp_guest_suspend_ram(Error **errp) 2758e72c3f2eSMichael Roth { 2759c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2760e72c3f2eSMichael Roth } 2761e72c3f2eSMichael Roth 276277dbc81bSMarkus Armbruster void qmp_guest_suspend_hybrid(Error **errp) 2763e72c3f2eSMichael Roth { 2764c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2765e72c3f2eSMichael Roth } 2766e72c3f2eSMichael Roth 2767d2baff62SLaszlo Ersek GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 2768d2baff62SLaszlo Ersek { 2769c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2770d2baff62SLaszlo Ersek return NULL; 2771d2baff62SLaszlo Ersek } 2772d2baff62SLaszlo Ersek 2773cbb65fc2SLaszlo Ersek int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 2774cbb65fc2SLaszlo Ersek { 2775c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2776cbb65fc2SLaszlo Ersek return -1; 2777cbb65fc2SLaszlo Ersek } 2778cbb65fc2SLaszlo Ersek 2779a065aaa9Szhanghailiang GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 2780a065aaa9Szhanghailiang { 2781c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2782a065aaa9Szhanghailiang return NULL; 2783a065aaa9Szhanghailiang } 2784a065aaa9Szhanghailiang 2785a065aaa9Szhanghailiang GuestMemoryBlockResponseList * 2786a065aaa9Szhanghailiang qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 2787a065aaa9Szhanghailiang { 2788c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2789a065aaa9Szhanghailiang return NULL; 2790a065aaa9Szhanghailiang } 2791a065aaa9Szhanghailiang 2792a065aaa9Szhanghailiang GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2793a065aaa9Szhanghailiang { 2794c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 2795a065aaa9Szhanghailiang return NULL; 2796a065aaa9Szhanghailiang } 2797a065aaa9Szhanghailiang 2798e72c3f2eSMichael Roth #endif 2799e72c3f2eSMichael Roth 280059e35c7bSAndrew Deason #ifdef HAVE_GETIFADDRS 280159e35c7bSAndrew Deason static GuestNetworkInterface * 280259e35c7bSAndrew Deason guest_find_interface(GuestNetworkInterfaceList *head, 280359e35c7bSAndrew Deason const char *name) 280459e35c7bSAndrew Deason { 280559e35c7bSAndrew Deason for (; head; head = head->next) { 280659e35c7bSAndrew Deason if (strcmp(head->value->name, name) == 0) { 280759e35c7bSAndrew Deason return head->value; 280859e35c7bSAndrew Deason } 280959e35c7bSAndrew Deason } 281059e35c7bSAndrew Deason 281159e35c7bSAndrew Deason return NULL; 281259e35c7bSAndrew Deason } 281359e35c7bSAndrew Deason 281459e35c7bSAndrew Deason static int guest_get_network_stats(const char *name, 281559e35c7bSAndrew Deason GuestNetworkInterfaceStat *stats) 281659e35c7bSAndrew Deason { 281770335c46SAndrew Deason #ifdef CONFIG_LINUX 281859e35c7bSAndrew Deason int name_len; 281959e35c7bSAndrew Deason char const *devinfo = "/proc/net/dev"; 282059e35c7bSAndrew Deason FILE *fp; 282159e35c7bSAndrew Deason char *line = NULL, *colon; 282259e35c7bSAndrew Deason size_t n = 0; 282359e35c7bSAndrew Deason fp = fopen(devinfo, "r"); 282459e35c7bSAndrew Deason if (!fp) { 2825a539dc8aSAndrew Deason g_debug("failed to open network stats %s: %s", devinfo, 2826a539dc8aSAndrew Deason g_strerror(errno)); 282759e35c7bSAndrew Deason return -1; 282859e35c7bSAndrew Deason } 282959e35c7bSAndrew Deason name_len = strlen(name); 283059e35c7bSAndrew Deason while (getline(&line, &n, fp) != -1) { 283159e35c7bSAndrew Deason long long dummy; 283259e35c7bSAndrew Deason long long rx_bytes; 283359e35c7bSAndrew Deason long long rx_packets; 283459e35c7bSAndrew Deason long long rx_errs; 283559e35c7bSAndrew Deason long long rx_dropped; 283659e35c7bSAndrew Deason long long tx_bytes; 283759e35c7bSAndrew Deason long long tx_packets; 283859e35c7bSAndrew Deason long long tx_errs; 283959e35c7bSAndrew Deason long long tx_dropped; 284059e35c7bSAndrew Deason char *trim_line; 284159e35c7bSAndrew Deason trim_line = g_strchug(line); 284259e35c7bSAndrew Deason if (trim_line[0] == '\0') { 284359e35c7bSAndrew Deason continue; 284459e35c7bSAndrew Deason } 284559e35c7bSAndrew Deason colon = strchr(trim_line, ':'); 284659e35c7bSAndrew Deason if (!colon) { 284759e35c7bSAndrew Deason continue; 284859e35c7bSAndrew Deason } 284959e35c7bSAndrew Deason if (colon - name_len == trim_line && 285059e35c7bSAndrew Deason strncmp(trim_line, name, name_len) == 0) { 285159e35c7bSAndrew Deason if (sscanf(colon + 1, 285259e35c7bSAndrew Deason "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld", 285359e35c7bSAndrew Deason &rx_bytes, &rx_packets, &rx_errs, &rx_dropped, 285459e35c7bSAndrew Deason &dummy, &dummy, &dummy, &dummy, 285559e35c7bSAndrew Deason &tx_bytes, &tx_packets, &tx_errs, &tx_dropped, 285659e35c7bSAndrew Deason &dummy, &dummy, &dummy, &dummy) != 16) { 285759e35c7bSAndrew Deason continue; 285859e35c7bSAndrew Deason } 285959e35c7bSAndrew Deason stats->rx_bytes = rx_bytes; 286059e35c7bSAndrew Deason stats->rx_packets = rx_packets; 286159e35c7bSAndrew Deason stats->rx_errs = rx_errs; 286259e35c7bSAndrew Deason stats->rx_dropped = rx_dropped; 286359e35c7bSAndrew Deason stats->tx_bytes = tx_bytes; 286459e35c7bSAndrew Deason stats->tx_packets = tx_packets; 286559e35c7bSAndrew Deason stats->tx_errs = tx_errs; 286659e35c7bSAndrew Deason stats->tx_dropped = tx_dropped; 286759e35c7bSAndrew Deason fclose(fp); 286859e35c7bSAndrew Deason g_free(line); 286959e35c7bSAndrew Deason return 0; 287059e35c7bSAndrew Deason } 287159e35c7bSAndrew Deason } 287259e35c7bSAndrew Deason fclose(fp); 287359e35c7bSAndrew Deason g_free(line); 287459e35c7bSAndrew Deason g_debug("/proc/net/dev: Interface '%s' not found", name); 2875a539dc8aSAndrew Deason #else /* !CONFIG_LINUX */ 2876a539dc8aSAndrew Deason g_debug("Network stats reporting available only for Linux"); 2877a539dc8aSAndrew Deason #endif /* !CONFIG_LINUX */ 287859e35c7bSAndrew Deason return -1; 287959e35c7bSAndrew Deason } 288059e35c7bSAndrew Deason 288128236ad8SBrad Smith #ifndef CONFIG_BSD 2882a1241094SAlexander Ivanov /* 2883a1241094SAlexander Ivanov * Fill "buf" with MAC address by ifaddrs. Pointer buf must point to a 2884a1241094SAlexander Ivanov * buffer with ETHER_ADDR_LEN length at least. 2885a1241094SAlexander Ivanov * 2886a1241094SAlexander Ivanov * Returns false in case of an error, otherwise true. "obtained" argument 2887a1241094SAlexander Ivanov * is true if a MAC address was obtained successful, otherwise false. 2888a1241094SAlexander Ivanov */ 2889a1241094SAlexander Ivanov bool guest_get_hw_addr(struct ifaddrs *ifa, unsigned char *buf, 2890a1241094SAlexander Ivanov bool *obtained, Error **errp) 2891a1241094SAlexander Ivanov { 2892a1241094SAlexander Ivanov struct ifreq ifr; 2893a1241094SAlexander Ivanov int sock; 2894a1241094SAlexander Ivanov 2895a1241094SAlexander Ivanov *obtained = false; 2896a1241094SAlexander Ivanov 2897a1241094SAlexander Ivanov /* we haven't obtained HW address yet */ 2898a1241094SAlexander Ivanov sock = socket(PF_INET, SOCK_STREAM, 0); 2899a1241094SAlexander Ivanov if (sock == -1) { 2900a1241094SAlexander Ivanov error_setg_errno(errp, errno, "failed to create socket"); 2901a1241094SAlexander Ivanov return false; 2902a1241094SAlexander Ivanov } 2903a1241094SAlexander Ivanov 2904a1241094SAlexander Ivanov memset(&ifr, 0, sizeof(ifr)); 2905a1241094SAlexander Ivanov pstrcpy(ifr.ifr_name, IF_NAMESIZE, ifa->ifa_name); 2906a1241094SAlexander Ivanov if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) { 2907a1241094SAlexander Ivanov /* 2908a1241094SAlexander Ivanov * We can't get the hw addr of this interface, but that's not a 2909a1241094SAlexander Ivanov * fatal error. 2910a1241094SAlexander Ivanov */ 2911a1241094SAlexander Ivanov if (errno == EADDRNOTAVAIL) { 2912a1241094SAlexander Ivanov /* The interface doesn't have a hw addr (e.g. loopback). */ 2913a1241094SAlexander Ivanov g_debug("failed to get MAC address of %s: %s", 2914a1241094SAlexander Ivanov ifa->ifa_name, strerror(errno)); 2915a1241094SAlexander Ivanov } else{ 2916a1241094SAlexander Ivanov g_warning("failed to get MAC address of %s: %s", 2917a1241094SAlexander Ivanov ifa->ifa_name, strerror(errno)); 2918a1241094SAlexander Ivanov } 2919a1241094SAlexander Ivanov } else { 2920a1241094SAlexander Ivanov #ifdef CONFIG_SOLARIS 2921a1241094SAlexander Ivanov memcpy(buf, &ifr.ifr_addr.sa_data, ETHER_ADDR_LEN); 2922a1241094SAlexander Ivanov #else 2923a1241094SAlexander Ivanov memcpy(buf, &ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN); 2924a1241094SAlexander Ivanov #endif 2925a1241094SAlexander Ivanov *obtained = true; 2926a1241094SAlexander Ivanov } 2927a1241094SAlexander Ivanov close(sock); 2928a1241094SAlexander Ivanov return true; 2929a1241094SAlexander Ivanov } 293028236ad8SBrad Smith #endif /* CONFIG_BSD */ 2931a1241094SAlexander Ivanov 293259e35c7bSAndrew Deason /* 293359e35c7bSAndrew Deason * Build information about guest interfaces 293459e35c7bSAndrew Deason */ 293559e35c7bSAndrew Deason GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 293659e35c7bSAndrew Deason { 293759e35c7bSAndrew Deason GuestNetworkInterfaceList *head = NULL, **tail = &head; 293859e35c7bSAndrew Deason struct ifaddrs *ifap, *ifa; 293959e35c7bSAndrew Deason 294059e35c7bSAndrew Deason if (getifaddrs(&ifap) < 0) { 294159e35c7bSAndrew Deason error_setg_errno(errp, errno, "getifaddrs failed"); 294259e35c7bSAndrew Deason goto error; 294359e35c7bSAndrew Deason } 294459e35c7bSAndrew Deason 294559e35c7bSAndrew Deason for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 294659e35c7bSAndrew Deason GuestNetworkInterface *info; 294759e35c7bSAndrew Deason GuestIpAddressList **address_tail; 294859e35c7bSAndrew Deason GuestIpAddress *address_item = NULL; 294959e35c7bSAndrew Deason GuestNetworkInterfaceStat *interface_stat = NULL; 295059e35c7bSAndrew Deason char addr4[INET_ADDRSTRLEN]; 295159e35c7bSAndrew Deason char addr6[INET6_ADDRSTRLEN]; 2952a1241094SAlexander Ivanov unsigned char mac_addr[ETHER_ADDR_LEN]; 2953a1241094SAlexander Ivanov bool obtained; 295459e35c7bSAndrew Deason void *p; 295559e35c7bSAndrew Deason 295659e35c7bSAndrew Deason g_debug("Processing %s interface", ifa->ifa_name); 295759e35c7bSAndrew Deason 295859e35c7bSAndrew Deason info = guest_find_interface(head, ifa->ifa_name); 295959e35c7bSAndrew Deason 296059e35c7bSAndrew Deason if (!info) { 296159e35c7bSAndrew Deason info = g_malloc0(sizeof(*info)); 296259e35c7bSAndrew Deason info->name = g_strdup(ifa->ifa_name); 296359e35c7bSAndrew Deason 296459e35c7bSAndrew Deason QAPI_LIST_APPEND(tail, info); 296559e35c7bSAndrew Deason } 296659e35c7bSAndrew Deason 296791eab32aSMarkus Armbruster if (!info->hardware_address) { 2968a1241094SAlexander Ivanov if (!guest_get_hw_addr(ifa, mac_addr, &obtained, errp)) { 296959e35c7bSAndrew Deason goto error; 297059e35c7bSAndrew Deason } 2971a1241094SAlexander Ivanov if (obtained) { 297259e35c7bSAndrew Deason info->hardware_address = 297359e35c7bSAndrew Deason g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 297459e35c7bSAndrew Deason (int) mac_addr[0], (int) mac_addr[1], 297559e35c7bSAndrew Deason (int) mac_addr[2], (int) mac_addr[3], 297659e35c7bSAndrew Deason (int) mac_addr[4], (int) mac_addr[5]); 297759e35c7bSAndrew Deason } 2978aec0730eSAndrew Deason } 297959e35c7bSAndrew Deason 298059e35c7bSAndrew Deason if (ifa->ifa_addr && 298159e35c7bSAndrew Deason ifa->ifa_addr->sa_family == AF_INET) { 298259e35c7bSAndrew Deason /* interface with IPv4 address */ 298359e35c7bSAndrew Deason p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr; 298459e35c7bSAndrew Deason if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) { 298559e35c7bSAndrew Deason error_setg_errno(errp, errno, "inet_ntop failed"); 298659e35c7bSAndrew Deason goto error; 298759e35c7bSAndrew Deason } 298859e35c7bSAndrew Deason 298959e35c7bSAndrew Deason address_item = g_malloc0(sizeof(*address_item)); 299059e35c7bSAndrew Deason address_item->ip_address = g_strdup(addr4); 299159e35c7bSAndrew Deason address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 299259e35c7bSAndrew Deason 299359e35c7bSAndrew Deason if (ifa->ifa_netmask) { 299459e35c7bSAndrew Deason /* Count the number of set bits in netmask. 299559e35c7bSAndrew Deason * This is safe as '1' and '0' cannot be shuffled in netmask. */ 299659e35c7bSAndrew Deason p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr; 299759e35c7bSAndrew Deason address_item->prefix = ctpop32(((uint32_t *) p)[0]); 299859e35c7bSAndrew Deason } 299959e35c7bSAndrew Deason } else if (ifa->ifa_addr && 300059e35c7bSAndrew Deason ifa->ifa_addr->sa_family == AF_INET6) { 300159e35c7bSAndrew Deason /* interface with IPv6 address */ 300259e35c7bSAndrew Deason p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; 300359e35c7bSAndrew Deason if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) { 300459e35c7bSAndrew Deason error_setg_errno(errp, errno, "inet_ntop failed"); 300559e35c7bSAndrew Deason goto error; 300659e35c7bSAndrew Deason } 300759e35c7bSAndrew Deason 300859e35c7bSAndrew Deason address_item = g_malloc0(sizeof(*address_item)); 300959e35c7bSAndrew Deason address_item->ip_address = g_strdup(addr6); 301059e35c7bSAndrew Deason address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 301159e35c7bSAndrew Deason 301259e35c7bSAndrew Deason if (ifa->ifa_netmask) { 301359e35c7bSAndrew Deason /* Count the number of set bits in netmask. 301459e35c7bSAndrew Deason * This is safe as '1' and '0' cannot be shuffled in netmask. */ 301559e35c7bSAndrew Deason p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; 301659e35c7bSAndrew Deason address_item->prefix = 301759e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[0]) + 301859e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[1]) + 301959e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[2]) + 302059e35c7bSAndrew Deason ctpop32(((uint32_t *) p)[3]); 302159e35c7bSAndrew Deason } 302259e35c7bSAndrew Deason } 302359e35c7bSAndrew Deason 302459e35c7bSAndrew Deason if (!address_item) { 302559e35c7bSAndrew Deason continue; 302659e35c7bSAndrew Deason } 302759e35c7bSAndrew Deason 302859e35c7bSAndrew Deason address_tail = &info->ip_addresses; 302959e35c7bSAndrew Deason while (*address_tail) { 303059e35c7bSAndrew Deason address_tail = &(*address_tail)->next; 303159e35c7bSAndrew Deason } 303259e35c7bSAndrew Deason QAPI_LIST_APPEND(address_tail, address_item); 303359e35c7bSAndrew Deason 303459e35c7bSAndrew Deason info->has_ip_addresses = true; 303559e35c7bSAndrew Deason 303691eab32aSMarkus Armbruster if (!info->statistics) { 303759e35c7bSAndrew Deason interface_stat = g_malloc0(sizeof(*interface_stat)); 303859e35c7bSAndrew Deason if (guest_get_network_stats(info->name, interface_stat) == -1) { 303959e35c7bSAndrew Deason g_free(interface_stat); 304059e35c7bSAndrew Deason } else { 304159e35c7bSAndrew Deason info->statistics = interface_stat; 304259e35c7bSAndrew Deason } 304359e35c7bSAndrew Deason } 304459e35c7bSAndrew Deason } 304559e35c7bSAndrew Deason 304659e35c7bSAndrew Deason freeifaddrs(ifap); 304759e35c7bSAndrew Deason return head; 304859e35c7bSAndrew Deason 304959e35c7bSAndrew Deason error: 305059e35c7bSAndrew Deason freeifaddrs(ifap); 305159e35c7bSAndrew Deason qapi_free_GuestNetworkInterfaceList(head); 305259e35c7bSAndrew Deason return NULL; 305359e35c7bSAndrew Deason } 305459e35c7bSAndrew Deason 305559e35c7bSAndrew Deason #else 305659e35c7bSAndrew Deason 305759e35c7bSAndrew Deason GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 305859e35c7bSAndrew Deason { 305959e35c7bSAndrew Deason error_setg(errp, QERR_UNSUPPORTED); 306059e35c7bSAndrew Deason return NULL; 306159e35c7bSAndrew Deason } 306259e35c7bSAndrew Deason 306359e35c7bSAndrew Deason #endif /* HAVE_GETIFADDRS */ 306459e35c7bSAndrew Deason 3065d35d4cb5SMichael Roth #if !defined(CONFIG_FSFREEZE) 3066d35d4cb5SMichael Roth 306746d4c572STomoki Sekiyama GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 306846d4c572STomoki Sekiyama { 3069c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 307046d4c572STomoki Sekiyama return NULL; 307146d4c572STomoki Sekiyama } 307246d4c572STomoki Sekiyama 307377dbc81bSMarkus Armbruster GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 3074d35d4cb5SMichael Roth { 3075c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3076d35d4cb5SMichael Roth 3077d35d4cb5SMichael Roth return 0; 3078d35d4cb5SMichael Roth } 3079d35d4cb5SMichael Roth 308077dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_freeze(Error **errp) 3081d35d4cb5SMichael Roth { 3082c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3083d35d4cb5SMichael Roth 3084d35d4cb5SMichael Roth return 0; 3085d35d4cb5SMichael Roth } 3086d35d4cb5SMichael Roth 3087e99bce20STomoki Sekiyama int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 3088e99bce20STomoki Sekiyama strList *mountpoints, 3089e99bce20STomoki Sekiyama Error **errp) 3090e99bce20STomoki Sekiyama { 3091c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3092e99bce20STomoki Sekiyama 3093e99bce20STomoki Sekiyama return 0; 3094e99bce20STomoki Sekiyama } 3095e99bce20STomoki Sekiyama 309677dbc81bSMarkus Armbruster int64_t qmp_guest_fsfreeze_thaw(Error **errp) 3097d35d4cb5SMichael Roth { 3098c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3099d35d4cb5SMichael Roth 3100d35d4cb5SMichael Roth return 0; 3101d35d4cb5SMichael Roth } 3102fed39564STomáš Golembiovský 3103fed39564STomáš Golembiovský GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 3104fed39564STomáš Golembiovský { 3105fed39564STomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 3106fed39564STomáš Golembiovský return NULL; 3107fed39564STomáš Golembiovský } 3108fed39564STomáš Golembiovský 31093569664eSluzhipeng GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 31103569664eSluzhipeng { 31113569664eSluzhipeng error_setg(errp, QERR_UNSUPPORTED); 31123569664eSluzhipeng return NULL; 31133569664eSluzhipeng } 31143569664eSluzhipeng 31151db8a0b0Szhenwei pi GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 31161db8a0b0Szhenwei pi { 31171db8a0b0Szhenwei pi error_setg(errp, QERR_UNSUPPORTED); 31181db8a0b0Szhenwei pi return NULL; 31191db8a0b0Szhenwei pi } 31203569664eSluzhipeng 3121eab5fd59SPaolo Bonzini #endif /* CONFIG_FSFREEZE */ 3122d35d4cb5SMichael Roth 3123eab5fd59SPaolo Bonzini #if !defined(CONFIG_FSTRIM) 3124e82855d9SJustin Ossevoort GuestFilesystemTrimResponse * 3125e82855d9SJustin Ossevoort qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 3126eab5fd59SPaolo Bonzini { 3127c6bd8c70SMarkus Armbruster error_setg(errp, QERR_UNSUPPORTED); 3128e82855d9SJustin Ossevoort return NULL; 3129eab5fd59SPaolo Bonzini } 3130d35d4cb5SMichael Roth #endif 3131d35d4cb5SMichael Roth 31320e4ef702SThomas Huth /* add unsupported commands to the list of blocked RPCs */ 31330e4ef702SThomas Huth GList *ga_command_init_blockedrpcs(GList *blockedrpcs) 31341281c08aSTomoki Sekiyama { 31351281c08aSTomoki Sekiyama #if !defined(__linux__) 31361281c08aSTomoki Sekiyama { 31371281c08aSTomoki Sekiyama const char *list[] = { 31381281c08aSTomoki Sekiyama "guest-suspend-disk", "guest-suspend-ram", 313959e35c7bSAndrew Deason "guest-suspend-hybrid", "guest-get-vcpus", "guest-set-vcpus", 31400dd38a03Szhanghailiang "guest-get-memory-blocks", "guest-set-memory-blocks", 314128d8dd35SBasil Salman "guest-get-memory-block-size", "guest-get-memory-block-info", 314228d8dd35SBasil Salman NULL}; 31431281c08aSTomoki Sekiyama char **p = (char **)list; 31441281c08aSTomoki Sekiyama 31451281c08aSTomoki Sekiyama while (*p) { 31460e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 31471281c08aSTomoki Sekiyama } 31481281c08aSTomoki Sekiyama } 31491281c08aSTomoki Sekiyama #endif 31501281c08aSTomoki Sekiyama 315159e35c7bSAndrew Deason #if !defined(HAVE_GETIFADDRS) 31520e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, 315359e35c7bSAndrew Deason g_strdup("guest-network-get-interfaces")); 315459e35c7bSAndrew Deason #endif 315559e35c7bSAndrew Deason 31561281c08aSTomoki Sekiyama #if !defined(CONFIG_FSFREEZE) 31571281c08aSTomoki Sekiyama { 31581281c08aSTomoki Sekiyama const char *list[] = { 31591281c08aSTomoki Sekiyama "guest-get-fsinfo", "guest-fsfreeze-status", 31601281c08aSTomoki Sekiyama "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", 3161fed39564STomáš Golembiovský "guest-fsfreeze-thaw", "guest-get-fsinfo", 3162fed39564STomáš Golembiovský "guest-get-disks", NULL}; 31631281c08aSTomoki Sekiyama char **p = (char **)list; 31641281c08aSTomoki Sekiyama 31651281c08aSTomoki Sekiyama while (*p) { 31660e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 31671281c08aSTomoki Sekiyama } 31681281c08aSTomoki Sekiyama } 31691281c08aSTomoki Sekiyama #endif 31701281c08aSTomoki Sekiyama 31711281c08aSTomoki Sekiyama #if !defined(CONFIG_FSTRIM) 31720e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-fstrim")); 31731281c08aSTomoki Sekiyama #endif 31741281c08aSTomoki Sekiyama 31750e4ef702SThomas Huth blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-get-devices")); 31762e4211ceSTomáš Golembiovský 31770e4ef702SThomas Huth return blockedrpcs; 31781281c08aSTomoki Sekiyama } 31791281c08aSTomoki Sekiyama 3180c216e5adSMichael Roth /* register init/cleanup routines for stateful command groups */ 3181c216e5adSMichael Roth void ga_command_state_init(GAState *s, GACommandState *cs) 3182c216e5adSMichael Roth { 3183c216e5adSMichael Roth #if defined(CONFIG_FSFREEZE) 3184f22d85e9SMichael Roth ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 3185c216e5adSMichael Roth #endif 3186c216e5adSMichael Roth } 3187161a56a9SVinzenz Feenstra 3188e674605fSTomáš Golembiovský #ifdef HAVE_UTMPX 3189e674605fSTomáš Golembiovský 3190161a56a9SVinzenz Feenstra #define QGA_MICRO_SECOND_TO_SECOND 1000000 3191161a56a9SVinzenz Feenstra 3192161a56a9SVinzenz Feenstra static double ga_get_login_time(struct utmpx *user_info) 3193161a56a9SVinzenz Feenstra { 3194161a56a9SVinzenz Feenstra double seconds = (double)user_info->ut_tv.tv_sec; 3195161a56a9SVinzenz Feenstra double useconds = (double)user_info->ut_tv.tv_usec; 3196161a56a9SVinzenz Feenstra useconds /= QGA_MICRO_SECOND_TO_SECOND; 3197161a56a9SVinzenz Feenstra return seconds + useconds; 3198161a56a9SVinzenz Feenstra } 3199161a56a9SVinzenz Feenstra 3200b90abbacSVladimir Sementsov-Ogievskiy GuestUserList *qmp_guest_get_users(Error **errp) 3201161a56a9SVinzenz Feenstra { 3202161a56a9SVinzenz Feenstra GHashTable *cache = NULL; 320395b3a8c8SEric Blake GuestUserList *head = NULL, **tail = &head; 3204161a56a9SVinzenz Feenstra struct utmpx *user_info = NULL; 3205161a56a9SVinzenz Feenstra gpointer value = NULL; 3206161a56a9SVinzenz Feenstra GuestUser *user = NULL; 3207161a56a9SVinzenz Feenstra double login_time = 0; 3208161a56a9SVinzenz Feenstra 3209161a56a9SVinzenz Feenstra cache = g_hash_table_new(g_str_hash, g_str_equal); 3210161a56a9SVinzenz Feenstra setutxent(); 3211161a56a9SVinzenz Feenstra 3212161a56a9SVinzenz Feenstra for (;;) { 3213161a56a9SVinzenz Feenstra user_info = getutxent(); 3214161a56a9SVinzenz Feenstra if (user_info == NULL) { 3215161a56a9SVinzenz Feenstra break; 3216161a56a9SVinzenz Feenstra } else if (user_info->ut_type != USER_PROCESS) { 3217161a56a9SVinzenz Feenstra continue; 3218161a56a9SVinzenz Feenstra } else if (g_hash_table_contains(cache, user_info->ut_user)) { 3219161a56a9SVinzenz Feenstra value = g_hash_table_lookup(cache, user_info->ut_user); 3220161a56a9SVinzenz Feenstra user = (GuestUser *)value; 3221161a56a9SVinzenz Feenstra login_time = ga_get_login_time(user_info); 3222161a56a9SVinzenz Feenstra /* We're ensuring the earliest login time to be sent */ 3223161a56a9SVinzenz Feenstra if (login_time < user->login_time) { 3224161a56a9SVinzenz Feenstra user->login_time = login_time; 3225161a56a9SVinzenz Feenstra } 3226161a56a9SVinzenz Feenstra continue; 3227161a56a9SVinzenz Feenstra } 3228161a56a9SVinzenz Feenstra 322995b3a8c8SEric Blake user = g_new0(GuestUser, 1); 323095b3a8c8SEric Blake user->user = g_strdup(user_info->ut_user); 323195b3a8c8SEric Blake user->login_time = ga_get_login_time(user_info); 3232161a56a9SVinzenz Feenstra 323395b3a8c8SEric Blake g_hash_table_insert(cache, user->user, user); 3234161a56a9SVinzenz Feenstra 323595b3a8c8SEric Blake QAPI_LIST_APPEND(tail, user); 3236161a56a9SVinzenz Feenstra } 3237161a56a9SVinzenz Feenstra endutxent(); 3238161a56a9SVinzenz Feenstra g_hash_table_destroy(cache); 3239161a56a9SVinzenz Feenstra return head; 3240161a56a9SVinzenz Feenstra } 3241e674605fSTomáš Golembiovský 3242e674605fSTomáš Golembiovský #else 3243e674605fSTomáš Golembiovský 3244e674605fSTomáš Golembiovský GuestUserList *qmp_guest_get_users(Error **errp) 3245e674605fSTomáš Golembiovský { 3246e674605fSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 3247e674605fSTomáš Golembiovský return NULL; 3248e674605fSTomáš Golembiovský } 3249e674605fSTomáš Golembiovský 3250e674605fSTomáš Golembiovský #endif 32519848f797STomáš Golembiovský 32529848f797STomáš Golembiovský /* Replace escaped special characters with theire real values. The replacement 32539848f797STomáš Golembiovský * is done in place -- returned value is in the original string. 32549848f797STomáš Golembiovský */ 32559848f797STomáš Golembiovský static void ga_osrelease_replace_special(gchar *value) 32569848f797STomáš Golembiovský { 32579848f797STomáš Golembiovský gchar *p, *p2, quote; 32589848f797STomáš Golembiovský 32599848f797STomáš Golembiovský /* Trim the string at first space or semicolon if it is not enclosed in 32609848f797STomáš Golembiovský * single or double quotes. */ 32619848f797STomáš Golembiovský if ((value[0] != '"') || (value[0] == '\'')) { 32629848f797STomáš Golembiovský p = strchr(value, ' '); 32639848f797STomáš Golembiovský if (p != NULL) { 32649848f797STomáš Golembiovský *p = 0; 32659848f797STomáš Golembiovský } 32669848f797STomáš Golembiovský p = strchr(value, ';'); 32679848f797STomáš Golembiovský if (p != NULL) { 32689848f797STomáš Golembiovský *p = 0; 32699848f797STomáš Golembiovský } 32709848f797STomáš Golembiovský return; 32719848f797STomáš Golembiovský } 32729848f797STomáš Golembiovský 32739848f797STomáš Golembiovský quote = value[0]; 32749848f797STomáš Golembiovský p2 = value; 32759848f797STomáš Golembiovský p = value + 1; 32769848f797STomáš Golembiovský while (*p != 0) { 32779848f797STomáš Golembiovský if (*p == '\\') { 32789848f797STomáš Golembiovský p++; 32799848f797STomáš Golembiovský switch (*p) { 32809848f797STomáš Golembiovský case '$': 32819848f797STomáš Golembiovský case '\'': 32829848f797STomáš Golembiovský case '"': 32839848f797STomáš Golembiovský case '\\': 32849848f797STomáš Golembiovský case '`': 32859848f797STomáš Golembiovský break; 32869848f797STomáš Golembiovský default: 32879848f797STomáš Golembiovský /* Keep literal backslash followed by whatever is there */ 32889848f797STomáš Golembiovský p--; 32899848f797STomáš Golembiovský break; 32909848f797STomáš Golembiovský } 32919848f797STomáš Golembiovský } else if (*p == quote) { 32929848f797STomáš Golembiovský *p2 = 0; 32939848f797STomáš Golembiovský break; 32949848f797STomáš Golembiovský } 32959848f797STomáš Golembiovský *(p2++) = *(p++); 32969848f797STomáš Golembiovský } 32979848f797STomáš Golembiovský } 32989848f797STomáš Golembiovský 32999848f797STomáš Golembiovský static GKeyFile *ga_parse_osrelease(const char *fname) 33009848f797STomáš Golembiovský { 33019848f797STomáš Golembiovský gchar *content = NULL; 33029848f797STomáš Golembiovský gchar *content2 = NULL; 33039848f797STomáš Golembiovský GError *err = NULL; 33049848f797STomáš Golembiovský GKeyFile *keys = g_key_file_new(); 33059848f797STomáš Golembiovský const char *group = "[os-release]\n"; 33069848f797STomáš Golembiovský 33079848f797STomáš Golembiovský if (!g_file_get_contents(fname, &content, NULL, &err)) { 33089848f797STomáš Golembiovský slog("failed to read '%s', error: %s", fname, err->message); 33099848f797STomáš Golembiovský goto fail; 33109848f797STomáš Golembiovský } 33119848f797STomáš Golembiovský 33129848f797STomáš Golembiovský if (!g_utf8_validate(content, -1, NULL)) { 33139848f797STomáš Golembiovský slog("file is not utf-8 encoded: %s", fname); 33149848f797STomáš Golembiovský goto fail; 33159848f797STomáš Golembiovský } 33169848f797STomáš Golembiovský content2 = g_strdup_printf("%s%s", group, content); 33179848f797STomáš Golembiovský 33189848f797STomáš Golembiovský if (!g_key_file_load_from_data(keys, content2, -1, G_KEY_FILE_NONE, 33199848f797STomáš Golembiovský &err)) { 33209848f797STomáš Golembiovský slog("failed to parse file '%s', error: %s", fname, err->message); 33219848f797STomáš Golembiovský goto fail; 33229848f797STomáš Golembiovský } 33239848f797STomáš Golembiovský 33249848f797STomáš Golembiovský g_free(content); 33259848f797STomáš Golembiovský g_free(content2); 33269848f797STomáš Golembiovský return keys; 33279848f797STomáš Golembiovský 33289848f797STomáš Golembiovský fail: 33299848f797STomáš Golembiovský g_error_free(err); 33309848f797STomáš Golembiovský g_free(content); 33319848f797STomáš Golembiovský g_free(content2); 33329848f797STomáš Golembiovský g_key_file_free(keys); 33339848f797STomáš Golembiovský return NULL; 33349848f797STomáš Golembiovský } 33359848f797STomáš Golembiovský 33369848f797STomáš Golembiovský GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 33379848f797STomáš Golembiovský { 33389848f797STomáš Golembiovský GuestOSInfo *info = NULL; 33399848f797STomáš Golembiovský struct utsname kinfo; 3340339ca68bSTomáš Golembiovský GKeyFile *osrelease = NULL; 3341339ca68bSTomáš Golembiovský const char *qga_os_release = g_getenv("QGA_OS_RELEASE"); 33429848f797STomáš Golembiovský 33439848f797STomáš Golembiovský info = g_new0(GuestOSInfo, 1); 33449848f797STomáš Golembiovský 33459848f797STomáš Golembiovský if (uname(&kinfo) != 0) { 33469848f797STomáš Golembiovský error_setg_errno(errp, errno, "uname failed"); 33479848f797STomáš Golembiovský } else { 33489848f797STomáš Golembiovský info->kernel_version = g_strdup(kinfo.version); 33499848f797STomáš Golembiovský info->kernel_release = g_strdup(kinfo.release); 33509848f797STomáš Golembiovský info->machine = g_strdup(kinfo.machine); 33519848f797STomáš Golembiovský } 33529848f797STomáš Golembiovský 3353339ca68bSTomáš Golembiovský if (qga_os_release != NULL) { 3354339ca68bSTomáš Golembiovský osrelease = ga_parse_osrelease(qga_os_release); 3355339ca68bSTomáš Golembiovský } else { 33569848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/etc/os-release"); 33579848f797STomáš Golembiovský if (osrelease == NULL) { 33589848f797STomáš Golembiovský osrelease = ga_parse_osrelease("/usr/lib/os-release"); 33599848f797STomáš Golembiovský } 3360339ca68bSTomáš Golembiovský } 33619848f797STomáš Golembiovský 33629848f797STomáš Golembiovský if (osrelease != NULL) { 33639848f797STomáš Golembiovský char *value; 33649848f797STomáš Golembiovský 33659848f797STomáš Golembiovský #define GET_FIELD(field, osfield) do { \ 33669848f797STomáš Golembiovský value = g_key_file_get_value(osrelease, "os-release", osfield, NULL); \ 33679848f797STomáš Golembiovský if (value != NULL) { \ 33689848f797STomáš Golembiovský ga_osrelease_replace_special(value); \ 33699848f797STomáš Golembiovský info->field = value; \ 33709848f797STomáš Golembiovský } \ 33719848f797STomáš Golembiovský } while (0) 33729848f797STomáš Golembiovský GET_FIELD(id, "ID"); 33739848f797STomáš Golembiovský GET_FIELD(name, "NAME"); 33749848f797STomáš Golembiovský GET_FIELD(pretty_name, "PRETTY_NAME"); 33759848f797STomáš Golembiovský GET_FIELD(version, "VERSION"); 33769848f797STomáš Golembiovský GET_FIELD(version_id, "VERSION_ID"); 33779848f797STomáš Golembiovský GET_FIELD(variant, "VARIANT"); 33789848f797STomáš Golembiovský GET_FIELD(variant_id, "VARIANT_ID"); 33799848f797STomáš Golembiovský #undef GET_FIELD 33809848f797STomáš Golembiovský 33819848f797STomáš Golembiovský g_key_file_free(osrelease); 33829848f797STomáš Golembiovský } 33839848f797STomáš Golembiovský 33849848f797STomáš Golembiovský return info; 33859848f797STomáš Golembiovský } 33862e4211ceSTomáš Golembiovský 33872e4211ceSTomáš Golembiovský GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 33882e4211ceSTomáš Golembiovský { 33892e4211ceSTomáš Golembiovský error_setg(errp, QERR_UNSUPPORTED); 33902e4211ceSTomáš Golembiovský 33912e4211ceSTomáš Golembiovský return NULL; 33922e4211ceSTomáš Golembiovský } 3393548fb0daSMarc-André Lureau 3394548fb0daSMarc-André Lureau #ifndef HOST_NAME_MAX 3395548fb0daSMarc-André Lureau # ifdef _POSIX_HOST_NAME_MAX 3396548fb0daSMarc-André Lureau # define HOST_NAME_MAX _POSIX_HOST_NAME_MAX 3397548fb0daSMarc-André Lureau # else 3398548fb0daSMarc-André Lureau # define HOST_NAME_MAX 255 3399548fb0daSMarc-André Lureau # endif 3400548fb0daSMarc-André Lureau #endif 3401548fb0daSMarc-André Lureau 3402548fb0daSMarc-André Lureau char *qga_get_host_name(Error **errp) 3403548fb0daSMarc-André Lureau { 3404548fb0daSMarc-André Lureau long len = -1; 3405548fb0daSMarc-André Lureau g_autofree char *hostname = NULL; 3406548fb0daSMarc-André Lureau 3407548fb0daSMarc-André Lureau #ifdef _SC_HOST_NAME_MAX 3408548fb0daSMarc-André Lureau len = sysconf(_SC_HOST_NAME_MAX); 3409548fb0daSMarc-André Lureau #endif /* _SC_HOST_NAME_MAX */ 3410548fb0daSMarc-André Lureau 3411548fb0daSMarc-André Lureau if (len < 0) { 3412548fb0daSMarc-André Lureau len = HOST_NAME_MAX; 3413548fb0daSMarc-André Lureau } 3414548fb0daSMarc-André Lureau 3415548fb0daSMarc-André Lureau /* Unfortunately, gethostname() below does not guarantee a 3416548fb0daSMarc-André Lureau * NULL terminated string. Therefore, allocate one byte more 3417548fb0daSMarc-André Lureau * to be sure. */ 3418548fb0daSMarc-André Lureau hostname = g_new0(char, len + 1); 3419548fb0daSMarc-André Lureau 3420548fb0daSMarc-André Lureau if (gethostname(hostname, len) < 0) { 3421548fb0daSMarc-André Lureau error_setg_errno(errp, errno, 3422548fb0daSMarc-André Lureau "cannot get hostname"); 3423548fb0daSMarc-André Lureau return NULL; 3424548fb0daSMarc-André Lureau } 3425548fb0daSMarc-André Lureau 3426548fb0daSMarc-André Lureau return g_steal_pointer(&hostname); 3427548fb0daSMarc-André Lureau } 3428