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Add a sysinfo util module and read host info API
Move existing routines about virSysinfoDef to an util module, add a new entry point virSysinfoRead() to read the host values with dmidecode * src/conf/domain_conf.c src/conf/domain_conf.h src/util/sysinfo.c src/util/sysinfo.h: move to a new module, add virSysinfoRead() * src/Makefile.am: handle the new module build * src/libvirt_private.syms: new internal symbols * include/libvirt/virterror.h src/util/virterror.c: defined a new error code for that module * po/POTFILES.in: add new file for translations
This commit is contained in:
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d528b52ff9
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778c0976c0
@ -73,7 +73,8 @@ typedef enum {
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VIR_FROM_NWFILTER, /* Error from network filter driver */
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VIR_FROM_HOOK, /* Error from Synchronous hooks */
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VIR_FROM_DOMAIN_SNAPSHOT, /* Error from domain snapshot */
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VIR_FROM_AUDIT /* Error from auditing subsystem */
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VIR_FROM_AUDIT, /* Error from auditing subsystem */
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VIR_FROM_SYSINFO /* Error from sysinfo/SMBIOS */
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} virErrorDomain;
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@ -89,6 +89,7 @@ src/util/pci.c
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src/util/processinfo.c
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src/util/stats_linux.c
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src/util/storage_file.c
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src/util/sysinfo.c
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src/util/util.c
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src/util/virtaudit.c
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src/util/virterror.c
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@ -77,6 +77,7 @@ UTIL_SOURCES = \
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util/qparams.c util/qparams.h \
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util/stats_linux.c util/stats_linux.h \
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util/storage_file.c util/storage_file.h \
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util/sysinfo.c util/sysinfo.h \
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util/threads.c util/threads.h \
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util/threads-pthread.h \
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util/threads-win32.h \
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@ -721,25 +721,6 @@ virDomainClockDefClear(virDomainClockDefPtr def)
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VIR_FREE(def->timers);
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}
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static void virSysinfoDefFree(virSysinfoDefPtr def)
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{
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if (def == NULL)
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return;
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VIR_FREE(def->bios_vendor);
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VIR_FREE(def->bios_version);
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VIR_FREE(def->bios_date);
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VIR_FREE(def->bios_release);
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VIR_FREE(def->system_manufacturer);
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VIR_FREE(def->system_product);
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VIR_FREE(def->system_version);
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VIR_FREE(def->system_serial);
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VIR_FREE(def->system_uuid);
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VIR_FREE(def->system_sku);
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VIR_FREE(def);
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}
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void virDomainDefFree(virDomainDefPtr def)
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{
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unsigned int i;
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@ -39,6 +39,7 @@
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# include "nwfilter_params.h"
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# include "nwfilter_conf.h"
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# include "macvtap.h"
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# include "sysinfo.h"
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/* Private component of virDomainXMLFlags */
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typedef enum {
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@ -606,30 +607,6 @@ struct _virDomainMemballoonDef {
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};
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enum virDomainSysinfoType {
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VIR_DOMAIN_SYSINFO_SMBIOS,
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VIR_DOMAIN_SYSINFO_LAST
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};
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typedef struct _virSysinfoDef virSysinfoDef;
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typedef virSysinfoDef *virSysinfoDefPtr;
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struct _virSysinfoDef {
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int type;
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char *bios_vendor;
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char *bios_version;
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char *bios_date;
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char *bios_release;
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char *system_manufacturer;
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char *system_product;
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char *system_version;
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char *system_serial;
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char *system_uuid;
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char *system_sku;
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};
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enum virDomainSmbiosMode {
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VIR_DOMAIN_SMBIOS_NONE,
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VIR_DOMAIN_SMBIOS_EMULATE,
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@ -694,6 +694,11 @@ virStorageFileProbeFormat;
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virStorageFileProbeFormatFromFD;
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# sysinfo.h
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virSysinfoDefFree;
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virSysinfoRead;
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# threads.h
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virCondBroadcast;
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virCondDestroy;
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236
src/util/sysinfo.c
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236
src/util/sysinfo.c
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@ -0,0 +1,236 @@
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/*
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* sysinfo.c: get SMBIOS/sysinfo information from the host
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*
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* Copyright (C) 2010 Red Hat, Inc.
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* Copyright (C) 2010 Daniel Veillard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel Veillard <veillard@redhat.com>
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "virterror_internal.h"
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#include "sysinfo.h"
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#include "util.h"
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#include "conf/domain_conf.h"
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#include "logging.h"
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#include "memory.h"
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#define VIR_FROM_THIS VIR_FROM_SYSINFO
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#define virSmbiosReportError(code, ...) \
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virReportErrorHelper(NULL, VIR_FROM_SYSINFO, code, __FILE__, \
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__FUNCTION__, __LINE__, __VA_ARGS__)
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#define SYSINFO_SMBIOS_DECODER "dmidecode"
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/**
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* virSysinfoDefFree:
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* @def: a sysinfo structure
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*
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* Free up the sysinfo structure
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*/
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void virSysinfoDefFree(virSysinfoDefPtr def)
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{
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if (def == NULL)
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return;
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VIR_FREE(def->bios_vendor);
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VIR_FREE(def->bios_version);
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VIR_FREE(def->bios_date);
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VIR_FREE(def->bios_release);
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VIR_FREE(def->system_manufacturer);
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VIR_FREE(def->system_product);
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VIR_FREE(def->system_version);
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VIR_FREE(def->system_serial);
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VIR_FREE(def->system_uuid);
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VIR_FREE(def->system_sku);
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VIR_FREE(def);
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}
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/**
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* virSysinfoRead:
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*
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* Tries to read the SMBIOS information from the current host
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*
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* Returns: a filled up sysinfo structure or NULL in case of error
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*/
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#ifdef WIN32
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virSysinfoDefPtr
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virSysinfoRead(void) {
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/*
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* this can probably be extracted from Windows using API or registry
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* http://www.microsoft.com/whdc/system/platform/firmware/SMBIOS.mspx
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*/
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virReportSystemError(ENOSYS, "%s",
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_("Host sysinfo extraction not supported on this platform"));
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return(NULL);
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}
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#else
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virSysinfoDefPtr
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virSysinfoRead(void) {
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char *path, *cur, *eol, *base;
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int pid, outfd = -1, errfd = -1;
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virSysinfoDefPtr ret = NULL;
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const char *argv[] = { NULL, "-q", "-t", "0,1", NULL };
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int res, waitret, exitstatus;
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char *outbuf = NULL;
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char *errbuf = NULL;
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path = virFindFileInPath(SYSINFO_SMBIOS_DECODER);
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if (path == NULL) {
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virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
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_("Failed to find path for %s binary"),
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SYSINFO_SMBIOS_DECODER);
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return(NULL);
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}
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argv[0] = path;
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res = virExec(argv, NULL, NULL, &pid, -1, &outfd, &errfd,
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VIR_EXEC_NONE | VIR_EXEC_NONBLOCK);
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if (res < 0) {
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virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
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_("Failed to execute command %s"),
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path);
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res = 1;
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goto cleanup;
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}
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/*
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* we are interested in the output, capture it and errors too
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*/
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if (virPipeReadUntilEOF(outfd, errfd, &outbuf, &errbuf) < 0) {
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virReportSystemError(errno, _("cannot wait for '%s'"), path);
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while (waitpid(pid, &exitstatus, 0) == -1 && errno == EINTR)
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;
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goto cleanup;
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}
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if (outbuf)
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VIR_DEBUG("Command stdout: %s", outbuf);
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if (errbuf)
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VIR_DEBUG("Command stderr: %s", errbuf);
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while ((waitret = waitpid(pid, &exitstatus, 0) == -1) &&
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(errno == EINTR));
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if (waitret == -1) {
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virReportSystemError(errno, _("Failed to wait for '%s'"), path);
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goto cleanup;
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}
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if (exitstatus != 0) {
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virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
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_("command %s failed with error code %d:%s"),
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path, exitstatus, errbuf);
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goto cleanup;
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}
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if (VIR_ALLOC(ret) < 0)
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goto no_memory;
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ret->type = VIR_DOMAIN_SYSINFO_SMBIOS;
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base = outbuf;
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if ((cur = strstr(base, "Vendor: ")) != NULL) {
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cur += 8;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->bios_vendor = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "Version: ")) != NULL) {
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cur += 9;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->bios_version = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "Release Date: ")) != NULL) {
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cur += 14;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->bios_date = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "BIOS Revision: ")) != NULL) {
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cur += 15;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->bios_release = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((base = strstr(outbuf, "System Information")) == NULL)
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goto cleanup;
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if ((cur = strstr(base, "Manufacturer: ")) != NULL) {
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cur += 14;
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eol = strchr(cur, '\n');
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if ((eol) &&
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((ret->system_manufacturer = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "Product Name: ")) != NULL) {
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cur += 14;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->system_product = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "Version: ")) != NULL) {
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cur += 9;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->system_version = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "Serial Number: ")) != NULL) {
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cur += 15;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->system_serial = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "UUID: ")) != NULL) {
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cur += 6;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->system_uuid = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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if ((cur = strstr(base, "SKU Number: ")) != NULL) {
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cur += 12;
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eol = strchr(cur, '\n');
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if ((eol) && ((ret->system_sku = strndup(cur, eol - cur)) == NULL))
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goto no_memory;
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}
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cleanup:
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VIR_FREE(outbuf);
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VIR_FREE(errbuf);
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VIR_FREE(path);
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return(ret);
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no_memory:
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virReportOOMError();
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virSysinfoDefFree(ret);
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ret = NULL;
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goto cleanup;
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}
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#endif
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58
src/util/sysinfo.h
Normal file
58
src/util/sysinfo.h
Normal file
@ -0,0 +1,58 @@
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/*
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* sysinfo.h: structure and entry points for sysinfo support
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*
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* Copyright (C) 2010 Red Hat, Inc.
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* Copyright (C) 2010 Daniel Veillard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel Veillard <veillard@redhat.com>
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*/
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#ifndef __VIR_SYSINFOS_H__
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# define __VIR_SYSINFOS_H__
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# include "internal.h"
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# include "util.h"
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enum virDomainSysinfoType {
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VIR_DOMAIN_SYSINFO_SMBIOS,
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VIR_DOMAIN_SYSINFO_LAST
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};
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typedef struct _virSysinfoDef virSysinfoDef;
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typedef virSysinfoDef *virSysinfoDefPtr;
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struct _virSysinfoDef {
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int type;
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char *bios_vendor;
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char *bios_version;
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char *bios_date;
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char *bios_release;
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char *system_manufacturer;
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char *system_product;
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char *system_version;
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char *system_serial;
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char *system_uuid;
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char *system_sku;
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};
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virSysinfoDefPtr virSysinfoRead(void);
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void virSysinfoDefFree(virSysinfoDefPtr def);
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#endif /* __VIR_SYSINFOS_H__ */
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@ -190,6 +190,9 @@ static const char *virErrorDomainName(virErrorDomain domain) {
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case VIR_FROM_AUDIT:
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dom = "Audit ";
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break;
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case VIR_FROM_SYSINFO:
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dom = "Sysinfo";
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break;
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}
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return(dom);
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}
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