Add a new 'guest-get-osinfo' command for reporting basic information of the guest operating system. This includes machine architecture, version and release of the kernel and several fields from os-release file if it is present (as defined in [1]).
[1] https://www.freedesktop.org/software/systemd/man/os-release.html Signed-off-by: Vinzenz Feenstra <vfeen...@redhat.com> Signed-off-by: Tomáš Golembiovský <tgole...@redhat.com> --- configure | 2 +- qga/commands-posix.c | 155 ++++++++++++++++++++++++++++++++++++++++++++++ qga/commands-win32.c | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++ qga/qapi-schema.json | 57 +++++++++++++++++ 4 files changed, 383 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 21944eaa05..94e294e350 100755 --- a/configure +++ b/configure @@ -3131,7 +3131,7 @@ if test "$mingw32" = yes; then else glib_req_ver=2.22 fi -glib_modules=gthread-2.0 +glib_modules="gthread-2.0 gio-2.0" if test "$modules" = yes; then glib_modules="$glib_modules gmodule-2.0" fi diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 284ecc6d7e..f43a1b201e 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -13,6 +13,7 @@ #include "qemu/osdep.h" #include <sys/ioctl.h> +#include <sys/utsname.h> #include <sys/wait.h> #include <dirent.h> #include <utmpx.h> @@ -24,6 +25,7 @@ #include "qemu/sockets.h" #include "qemu/base64.h" #include "qemu/cutils.h" +#include <gio/gio.h> #ifndef CONFIG_HAS_ENVIRON #ifdef __APPLE__ @@ -2579,3 +2581,156 @@ GuestUserList *qmp_guest_get_users(Error **err) g_hash_table_destroy(cache); return head; } + +static GHashTable* ga_parse_osrelease(const char *fname) +{ + GFile *f; + GFileInputStream *fis = NULL; + GDataInputStream* dis = NULL; + GError *err = NULL; + gsize length; + char *line; + char *value; + GHashTable *tbl = NULL; + + /* Open the file */ + f = g_file_new_for_path(fname); + fis = g_file_read(f, NULL, &err); + if (err != NULL) { + slog("failed to open file '%s', error: %s", fname, err->message); + g_error_free(err); + g_object_unref(f); + return NULL; + } + dis = g_data_input_stream_new(G_INPUT_STREAM(fis)); + + err = NULL; + tbl = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free); + /* Go through all lines */ + line = NULL; + while (err == NULL) { + g_free(line); + line = g_data_input_stream_read_line_utf8(dis, &length, NULL, &err); + if (err != NULL) { + slog("failed to open file '%s', error: %s", fname, err->message); + g_error_free(err); + break; + } else if (line == NULL) { + /* EOF */ + break; + } else if((length == 0) || (line[0] == '#')) { + continue; + } + + value = strchr(line, '='); + if (value == NULL) { + continue; + } + value[0] = 0; + value++; + + if ((value[0] == '"') || (value[0] == '\'')) { + char *p; + char end = value[0]; + value++; + p = value; + while (*p != 0) { + if (*p == '\\') { + switch(*(p+1)) { + case '\'': + case '"': + case '$': + case '`': + memmove(p, p+1, strlen(p+1)); + break; + default: + /* Keep literal backslash */ + p++; + break; + } + if (*p != 0) { + p++; + } + continue; + } + if (*p == end) { + *p = 0; + break; + } + p++; + } + } + g_hash_table_insert(tbl, g_strdup(line), g_strdup(value)); + } + g_free(line); + + g_object_unref(fis); + g_object_unref(dis); + g_object_unref(f); + + return tbl; +} + +GuestOSInfo *qmp_guest_get_osinfo(Error **errp) +{ + GuestOSInfo *info = g_new0(GuestOSInfo, 1); + memset(info, 0, sizeof(GuestOSInfo)); + + struct utsname kinfo; + uname(&kinfo); + + info->kernel_version = g_strdup(kinfo.version); + info->kernel_release = g_strdup(kinfo.release); + info->machine_hardware = g_strdup(kinfo.machine); + + GHashTable *osrelease = ga_parse_osrelease("/etc/os-release"); + if (osrelease == NULL) { + slog("could not read /etc/os-release"); + osrelease = ga_parse_osrelease("/usr/lib/os-release"); + if (osrelease == NULL) { + slog("could not read /usr/lib/os-release"); + } + } + + if (osrelease != NULL) { + char *value; + value = g_hash_table_lookup(osrelease, "ID"); + if (value != NULL) { + info->has_id = true; + info->id = g_strdup(value); + } + value = g_hash_table_lookup(osrelease, "PRETTY_NAME"); + if (value != NULL) { + info->has_pretty_name = true; + info->pretty_name = g_strdup(value); + } + value = g_hash_table_lookup(osrelease, "NAME"); + if (value != NULL) { + info->has_name = true; + info->name = g_strdup(value); + } + value = g_hash_table_lookup(osrelease, "VERSION"); + if (value != NULL) { + info->has_version = true; + info->version = g_strdup(value); + } + value = g_hash_table_lookup(osrelease, "VERSION_ID"); + if (value != NULL) { + info->has_version_id = true; + info->version_id = g_strdup(value); + } + value = g_hash_table_lookup(osrelease, "VARIANT"); + if (value != NULL) { + info->has_variant = true; + info->variant = g_strdup(value); + } + value = g_hash_table_lookup(osrelease, "VARIANT_ID"); + if (value != NULL) { + info->has_variant_id = true; + info->variant_id = g_strdup(value); + } + g_hash_table_destroy(osrelease); + } + + return info; +} diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 439d229225..f9867baf1f 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -1639,3 +1639,173 @@ GuestUserList *qmp_guest_get_users(Error **err) return NULL; #endif } + +typedef struct _ga_matrix_lookup_t { + int major; + int minor; + char const *version; + char const *version_id; +} ga_matrix_lookup_t; + +static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = { + { + /* Desktop editions */ + { 5, 0, "Microsoft Windows 2000", "2000"}, + { 5, 1, "Microsoft Windows XP", "xp"}, + { 6, 0, "Microsoft Windows Vista", "vista"}, + { 6, 1, "Microsoft Windows 7" "7"}, + { 6, 2, "Microsoft Windows 8", "8"}, + { 6, 3, "Microsoft Windows 8.1", "8.1"}, + {10, 0, "Microsoft Windows 10", "10"}, + { 0, 0, 0} + },{ + /* Server editions */ + { 5, 2, "Microsoft Windows Server 2003", "2003"}, + { 6, 0, "Microsoft Windows Server 2008", "2008"}, + { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, + { 6, 2, "Microsoft Windows Server 2012", "2012"}, + { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, + {10, 0, "Microsoft Windows Server 2016", "2016"}, + { 0, 0, 0}, + { 0, 0, 0} + } +}; + +static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info) +{ + info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); + + typedef NTSTATUS(WINAPI * rtl_get_version_t)( + RTL_OSVERSIONINFOEXW *os_version_info_ex); + HMODULE module = GetModuleHandle("ntdll"); + PVOID fun = GetProcAddress(module, "RtlGetVersion"); + rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; + rtl_get_version(info); +} + +static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) +{ + DWORD major = os_version->dwMajorVersion; + DWORD minor = os_version->dwMinorVersion; + int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); + ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; + while (table->version != NULL) { + if (major == table->major && minor == table->minor) { + if (id) { + return g_strdup(table->version_id); + } else { + return g_strdup(table->version); + } + } + ++table; + } + slog("failed to lookup Windows version: major=%lu, minor=%lu", + major, minor); + return g_strdup("N/A"); +} + +static char *ga_get_win_product_name(void) +{ + HKEY key = NULL; + DWORD size = 128; + char *result = g_malloc0(size); + memset(result, 0, size); + LONG err = ERROR_SUCCESS; + + err = RegOpenKeyA(HKEY_LOCAL_MACHINE, + "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", + &key); + if (err == ERROR_SUCCESS) { + err = RegQueryValueExA(key, "ProductName", NULL, NULL, + (LPBYTE)result, &size); + if (err == ERROR_MORE_DATA) { + slog("ProductName longer than expected (%lu bytes), retrying", + size); + g_free(result); + result = NULL; + if (size > 0) { + result = g_malloc0(size); + err = RegQueryValueExA(key, "ProductName", NULL, NULL, + (LPBYTE)result, &size); + if (err != ERROR_SUCCESS) { + g_free(result); + result = NULL; + } + } + } + if (err != ERROR_SUCCESS) { + slog("failed to retrive ProductName"); + } + } + return result; +} + +static char *ga_get_current_arch(void) +{ + SYSTEM_INFO info; + GetNativeSystemInfo(&info); + char *result = NULL; + switch (info.wProcessorArchitecture) { + case PROCESSOR_ARCHITECTURE_AMD64: + result = g_strdup("x86_64"); + break; + case PROCESSOR_ARCHITECTURE_ARM: + result = g_strdup("arm"); + break; + case PROCESSOR_ARCHITECTURE_IA64: + result = g_strdup("ia64"); + break; + case PROCESSOR_ARCHITECTURE_INTEL: + result = g_strdup("x86"); + break; + case PROCESSOR_ARCHITECTURE_UNKNOWN: + default: + slog("unknown processor architecture 0x%0x", + info.wProcessorArchitecture); + result = g_strdup("unknown"); + break; + } + return result; +} + +GuestOSInfo *qmp_guest_get_osinfo(Error **errp) +{ + OSVERSIONINFOEXW os_version; + ga_get_win_version(&os_version); + + bool server = os_version.wProductType != VER_NT_WORKSTATION; + char *product_name = ga_get_win_product_name(); + if (product_name == NULL) { + Error *local_err = NULL; + error_setg(&local_err, QERR_QGA_COMMAND_FAILED, + "failed to retrieve ProductName from registry"); + error_propagate(errp, local_err); + return NULL; + } + + GuestOSInfo *info = g_new0(GuestOSInfo, 1); + + info->kernel_version = g_strdup_printf("%lu.%lu", + os_version.dwMajorVersion, + os_version.dwMinorVersion); + info->kernel_release = g_strdup_printf("%lu", + os_version.dwBuildNumber); + info->machine_hardware = ga_get_current_arch(); + + info->has_id = true; + info->id = g_strdup("mswindows"); + info->has_name = true; + info->name = g_strdup("Microsoft Windows"); + info->has_pretty_name = true; + info->pretty_name = product_name; + info->has_version = true; + info->version = ga_get_win_name(&os_version, false); + info->has_version_id = true; + info->version_id = ga_get_win_name(&os_version, true); + info->has_variant = true; + info->variant = g_strdup(server ? "server" : "client"); + info->has_variant_id = true; + info->variant_id = g_strdup(server ? "server" : "client"); + + return info; +} diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 03743ab905..d72903ff8a 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1126,3 +1126,60 @@ ## { 'command': 'guest-get-timezone', 'returns': 'GuestTimezone' } + +## +# @GuestOSInfo: +# +# Notes: +# +# The fields @id, @name, @pretty-name, @version, @version-id, @variant and +# @variant-id follow the definition specified in os-release(5). Refer to the +# manual page for exact description of the fields. +# +# On POSIX systems: +# +# kernel-release: release field returned by uname(2) +# kernel-version': version field returned by uname(2) +# machine-hardware': machine field returned by uname(2) +# id: as defined by os-release(5) +# name: as defined by os-release(5) +# pretty-name: as defined by os-release(5) +# version: as defined by os-release(5) +# version-id: as defined by os-release(5) +# variant: as defined by os-release(5) +# variant-id: as defined by os-release(5) +# +# +# On Windows: +# +# kernel-release: version number of the OS +# kernel-version': build number of the OS +# machine-hardware': architecture of the hardware +# id: contains string "mswindows" +# name: contains string "Microsoft Windows" +# pretty-name: product name, e.g. "Microsoft Windows 10 Enterprise" +# version: long version string, e.g. "Microsoft Windows Server 2008" +# version-id: short version identifier, e.g. "7" or "20012r2" +# variant: contains string "server" or "client" +# variant-id: contains string "server" or "client" +# +# Since: 2.10 +## +{ 'struct': 'GuestOSInfo', + 'data': { + 'kernel-release': 'str', 'kernel-version': 'str', + 'machine-hardware': 'str', '*id': 'str', '*name': 'str', + '*pretty-name': 'str', '*version': 'str', '*version-id': 'str', + '*variant': 'str', '*variant-id': 'str' } } + +## +# @guest-get-osinfo: +# +# Retrieve guest operating system information +# +# Returns: operating system information on success +# +# Since 2.10 +## +{ 'command': 'guest-get-osinfo', + 'returns': 'GuestOSInfo' } -- 2.13.0