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[libvirt] [PATCH] * tests/cpuset: New script. Test for today's fix.
by Jim Meyering 31 Oct '08

31 Oct '08

>From c0beb0ed6dd3d392b11161c565d7dfd52ed2aceb Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Mon, 2 Jun 2008 11:54:34 +0200 Subject: [PATCH 1/2] * tests/cpuset: New script. Test for today's fix. * tests/Makefile.am (test_scripts): Add cpuset. --- tests/Makefile.am | 1 + tests/cpuset | 45 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+), 0 deletions(-) create mode 100755 tests/cpuset diff --git a/tests/Makefile.am b/tests/Makefile.am index 02b7970..ea577df 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -48,6 +48,7 @@ test_scripts = domainschematest if WITH_LIBVIRTD test_scripts += \ test_conf.sh \ + cpuset \ daemon-conf \ int-overflow \ read-bufsiz \ diff --git a/tests/cpuset b/tests/cpuset new file mode 100755 index 0000000..8722c81 --- /dev/null +++ b/tests/cpuset @@ -0,0 +1,45 @@ +#!/bin/sh +# ensure that defining with an invalid vCPU cpuset elicits a diagnostic + +# Copyright (C) 2008 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +if test "$VERBOSE" = yes; then + set -x + virsh --version +fi + +. $srcdir/test-lib.sh + +fail=0 + +# generate input +virsh --connect test:///default dumpxml 1 > xml || fail=1 + +# require the presence of the string we'll transform +grep '<vcpu>' xml > /dev/null || fail=1 + +sed "s/vcpu>/vcpu cpuset='aaa'>/" xml > xml-invalid || fail=1 + +# Require failure and a diagnostic. +virsh --connect test:///default define xml-invalid > out 2>&1 && fail=1 +cat <<\EOF > exp || fail=1 +libvir: Domain Config error : failed Xen syscall topology cpuset syntax error +error: Failed to define domain from xml-invalid + +EOF +compare out exp || fail=1 + +(exit $fail); exit $fail -- 1.6.0.3.756.gb776d

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[libvirt] PATCH: don't print uninitialized integer in diagnostic
by Jim Meyering 31 Oct '08

31 Oct '08

In adding a test of the vcpu cpuset parsing code (another patch coming separately), I noticed a bogus diagnostic: virsh --connect test:///default dumpxml 1 > xml sed "s/vcpu>/vcpu cpuset='aaa'>/" xml > xml-invalid ./virsh --connect test:///default define xml-invalid 2>&1 |head -1 libvir: Domain Config error : failed Xen syscall topology cpuset syntax error -2027441560 With the patch below, I get this output instead: (i.e., same, but without the trailing negative number) $ ./virsh --connect test:///default define xml-invalid 2>&1 |head -1 libvir: Domain Config error : failed Xen syscall topology cpuset syntax error diff --git a/src/virterror.c b/src/virterror.c index 21c7339..be809a0 100644 --- a/src/virterror.c +++ b/src/virterror.c @@ -1,7 +1,7 @@ /* * virterror.c: implements error handling and reporting code for libvirt * - * Copy: Copyright (C) 2006 Red Hat, Inc. + * Copy: Copyright (C) 2006, 2008 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -516,7 +516,7 @@ __virErrorMsg(virErrorNumber error, const char *info) errmsg = _("could not connect to Xen Store %s"); break; case VIR_ERR_XEN_CALL: - errmsg = _("failed Xen syscall %s %d"); + errmsg = _("failed Xen syscall %s"); break; case VIR_ERR_OS_TYPE: if (info == NULL)

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[libvirt] virt-viewer with fullscreen?
by Jun Koi 31 Oct '08

31 Oct '08

Hi, I am using virt-viewer to view an Windows VM. However, I cannot get fullscreen with virt-viewer when using menu View -> Fullscreen. When I did that, nothing happenes. Is that a bug? The version of virt-viewer is 0.0.3 Thanks, J

1 0

[libvirt] [PATCH] Add storage API support to test driver
by Cole Robinson 30 Oct '08

30 Oct '08

The attached patch implements the storage driver routines for the test driver. Most of the code is identical to storage_driver.c with all the references to backends removed. One caveat of this is that storage pools are hardcoded to a specific size when they are defined: I figure someone could expand this to read sizes from xml at definition time if they wanted, but for now hardcoded values is sufficient. I've done some decent testing with it all, so I'm pretty confident it isn't too broken. Thanks, Cole src/test.c | 753 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 748 insertions(+), 5 deletions(-) diff --git a/src/test.c b/src/test.c index aab74e4..5ee51c0 100644 --- a/src/test.c +++ b/src/test.c @@ -29,6 +29,7 @@ #include <fcntl.h> #include <unistd.h> #include <sys/stat.h> +#include <libxml/xmlsave.h> #include "test.h" #include "buf.h" @@ -38,6 +39,7 @@ #include "memory.h" #include "network_conf.h" #include "domain_conf.h" +#include "storage_conf.h" #include "xml.h" #define MAX_CPUS 128 @@ -59,6 +61,7 @@ struct _testConn { virNodeInfo nodeInfo; virDomainObjList domains; virNetworkObjList networks; + virStoragePoolObjList pools; int numCells; testCell cells[MAX_CELLS]; }; @@ -106,11 +109,56 @@ static const virNodeInfo defaultNodeInfo = { } \ } while (0) +#define GET_POOL(pool, ret) \ + testConnPtr privconn; \ + virStoragePoolObjPtr privpool; \ + \ + privconn = (testConnPtr)pool->conn->privateData; \ + do { \ + if ((privpool = virStoragePoolObjFindByName(&privconn->pools, \ + (pool)->name)) == NULL) {\ + testError((pool)->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); \ + return (ret); \ + } \ + } while (0) + +#define GET_POOL_FROM_VOL(vol, ret) \ + GET_POOL(testStoragePoolLookupByName((virConnectPtr) \ + vol->conn, \ + vol->pool), ret) + +#define GET_VOL(vol, pool, ret) \ + virStorageVolDefPtr privvol; \ + \ + privvol = virStorageVolDefFindByName(pool, vol->name); \ + do { \ + if (!privvol) { \ + testError(vol->conn, VIR_ERR_INVALID_STORAGE_VOL, \ + _("no storage vol with matching name '%s'"), \ + vol->name); \ + return (ret); \ + } \ + } while (0) \ + + #define GET_CONNECTION(conn) \ testConnPtr privconn; \ \ privconn = (testConnPtr)conn->privateData; +#define POOL_IS_ACTIVE(pool, ret) \ + if (!virStoragePoolObjIsActive(pool)) { \ + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, \ + _("storage pool '%s' is not active"), pool->def->name); \ + return (ret); \ + } \ + +#define POOL_IS_NOT_ACTIVE(pool, ret) \ + if (virStoragePoolObjIsActive(pool)) { \ + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, \ + _("storage pool '%s' is already active"), pool->def->name); \ + return (ret); \ + } \ #define testError(conn, code, fmt...) \ __virReportErrorHelper(conn, VIR_FROM_TEST, code, __FILE__, \ @@ -196,6 +244,18 @@ static const char *defaultNetworkXML = " </ip>" "</network>"; +static const char *defaultPoolXML = +"<pool type='dir'>" +" <name>default-pool</name>" +" <target>" +" <path>/default-pool</path>" +" </target>" +"</pool>"; + +static const unsigned long long defaultPoolCap = (100 * 1024 * 1024 * 1024ul); +static const unsigned long long defaultPoolAlloc = 0; + +static int testStoragePoolObjSetDefaults(virStoragePoolObjPtr pool); static int testOpenDefault(virConnectPtr conn) { int u; @@ -205,6 +265,8 @@ static int testOpenDefault(virConnectPtr conn) { virDomainObjPtr domobj = NULL; virNetworkDefPtr netdef = NULL; virNetworkObjPtr netobj = NULL; + virStoragePoolDefPtr pooldef = NULL; + virStoragePoolObjPtr poolobj = NULL; if (VIR_ALLOC(privconn) < 0) { testError(conn, VIR_ERR_NO_MEMORY, "testConn"); @@ -250,15 +312,27 @@ static int testOpenDefault(virConnectPtr conn) { virNetworkDefFree(netdef); goto error; } - netobj->active = 1; netobj->persistent = 1; + if (!(pooldef = virStoragePoolDefParse(conn, defaultPoolXML, NULL))) + goto error; + + if (!(poolobj = virStoragePoolObjAssignDef(conn, &privconn->pools, + pooldef))) { + virStoragePoolDefFree(pooldef); + goto error; + } + if (testStoragePoolObjSetDefaults(poolobj) == -1) + goto error; + poolobj->active = 1; + return VIR_DRV_OPEN_SUCCESS; error: virDomainObjListFree(&privconn->domains); virNetworkObjListFree(&privconn->networks); + virStoragePoolObjListFree(&privconn->pools); virCapabilitiesFree(privconn->caps); VIR_FREE(privconn); return VIR_DRV_OPEN_ERROR; @@ -295,7 +369,7 @@ static int testOpenFromFile(virConnectPtr conn, char *str; xmlDocPtr xml = NULL; xmlNodePtr root = NULL; - xmlNodePtr *domains = NULL, *networks = NULL; + xmlNodePtr *domains = NULL, *networks = NULL, *pools = NULL; xmlXPathContextPtr ctxt = NULL; virNodeInfoPtr nodeInfo; virNetworkObjPtr net; @@ -311,7 +385,9 @@ static int testOpenFromFile(virConnectPtr conn, goto error; if ((fd = open(file, O_RDONLY)) < 0) { - testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("loading host definition file")); + testError(NULL, VIR_ERR_INTERNAL_ERROR, + _("loading host definition file '%s': %s"), + file, strerror(errno)); goto error; } @@ -332,7 +408,8 @@ static int testOpenFromFile(virConnectPtr conn, ctxt = xmlXPathNewContext(xml); if (ctxt == NULL) { - testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("creating xpath context")); + testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("creating xpath context")); goto error; } @@ -480,6 +557,58 @@ static int testOpenFromFile(virConnectPtr conn, if (networks != NULL) VIR_FREE(networks); + /* Parse Storage Pool list */ + ret = virXPathNodeSet(conn, "/node/pool", ctxt, &pools); + if (ret < 0) { + testError(NULL, VIR_ERR_XML_ERROR, "%s", _("node pool list")); + goto error; + } + for (i = 0 ; i < ret ; i++) { + virStoragePoolDefPtr def; + virStoragePoolObjPtr pool; + char *relFile = virXMLPropString(pools[i], "file"); + if (relFile != NULL) { + char *absFile = testBuildFilename(file, relFile); + VIR_FREE(relFile); + if (!absFile) { + testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("resolving pool filename")); + goto error; + } + + def = virStoragePoolDefParse(conn, NULL, absFile); + VIR_FREE(absFile); + if (!def) + goto error; + } else { + xmlBufferPtr buf; + xmlSaveCtxtPtr sctxt; + + buf = xmlBufferCreate(); + sctxt = xmlSaveToBuffer(buf, NULL, 0); + xmlSaveTree(sctxt, pools[i]); + xmlSaveClose(sctxt); + if ((def = virStoragePoolDefParse(conn, + (const char *) buf->content, + NULL)) == NULL) { + xmlBufferFree(buf); + goto error; + } + } + + if (!(pool = virStoragePoolObjAssignDef(conn, &privconn->pools, + def))) { + virStoragePoolDefFree(def); + goto error; + } + + if (testStoragePoolObjSetDefaults(pool) == -1) + goto error; + pool->active = 1; + } + if (pools != NULL) + VIR_FREE(pools); + xmlXPathFreeContext(ctxt); xmlFreeDoc(xml); @@ -490,10 +619,12 @@ static int testOpenFromFile(virConnectPtr conn, xmlFreeDoc(xml); VIR_FREE(domains); VIR_FREE(networks); + VIR_FREE(pools); if (fd != -1) close(fd); virDomainObjListFree(&privconn->domains); virNetworkObjListFree(&privconn->networks); + virStoragePoolObjListFree(&privconn->pools); VIR_FREE(privconn); conn->privateData = NULL; return VIR_DRV_OPEN_ERROR; @@ -545,6 +676,7 @@ static int testClose(virConnectPtr conn) virCapabilitiesFree(privconn->caps); virDomainObjListFree(&privconn->domains); virNetworkObjListFree(&privconn->networks); + virStoragePoolObjListFree(&privconn->pools); VIR_FREE (privconn); conn->privateData = conn; @@ -1475,6 +1607,26 @@ static int testNetworkSetAutostart(virNetworkPtr network, return (0); } + +/* + * Storage Driver routines + */ + +static int testStoragePoolObjSetDefaults(virStoragePoolObjPtr pool) { + + pool->def->capacity = defaultPoolCap; + pool->def->allocation = defaultPoolAlloc; + pool->def->available = defaultPoolCap - defaultPoolAlloc; + + pool->configFile = strdup("\0"); + if (!pool->configFile) { + testError(NULL, VIR_ERR_NO_MEMORY, "configFile"); + return -1; + } + + return 0; +} + static virDrvOpenStatus testStorageOpen(virConnectPtr conn, xmlURIPtr uri ATTRIBUTE_UNUSED, virConnectAuthPtr auth ATTRIBUTE_UNUSED, @@ -1491,6 +1643,566 @@ static int testStorageClose(virConnectPtr conn) { return 0; } +static virStoragePoolPtr +testStoragePoolLookupByUUID(virConnectPtr conn, + const unsigned char *uuid) { + virStoragePoolObjPtr pool = NULL; + GET_CONNECTION(conn); + + if ((pool = virStoragePoolObjFindByUUID(&privconn->pools, uuid)) == NULL) { + testError (conn, VIR_ERR_NO_STORAGE_POOL, NULL); + return NULL; + } + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static virStoragePoolPtr +testStoragePoolLookupByName(virConnectPtr conn, + const char *name) { + virStoragePoolObjPtr pool = NULL; + GET_CONNECTION(conn); + + if ((pool = virStoragePoolObjFindByName(&privconn->pools, name)) == NULL) { + testError (conn, VIR_ERR_NO_STORAGE_POOL, NULL); + return NULL; + } + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static virStoragePoolPtr +testStoragePoolLookupByVolume(virStorageVolPtr vol) { + return testStoragePoolLookupByName(vol->conn, vol->pool); +} + +static int +testStorageNumPools(virConnectPtr conn) { + + int numActive = 0, i; + GET_CONNECTION(conn); + + for (i = 0 ; i < privconn->pools.count ; i++) + if (virStoragePoolObjIsActive(privconn->pools.objs[i])) + numActive++; + + return numActive; +} + +static int +testStorageListPools(virConnectPtr conn, + char **const names, + int nnames) { + int n = 0, i; + GET_CONNECTION(conn); + + memset(names, 0, sizeof(*names)*nnames); + for (i = 0 ; i < privconn->pools.count && n < nnames ; i++) + if (virStoragePoolObjIsActive(privconn->pools.objs[i]) && + !(names[n++] = strdup(privconn->pools.objs[i]->def->name))) + goto no_memory; + + return n; + +no_memory: + testError(conn, VIR_ERR_NO_MEMORY, NULL); + for (n = 0 ; n < nnames ; n++) + VIR_FREE(names[n]); + return (-1); +} + +static int +testStorageNumDefinedPools(virConnectPtr conn) { + + int numInactive = 0, i; + GET_CONNECTION(conn); + + for (i = 0 ; i < privconn->pools.count ; i++) + if (!virStoragePoolObjIsActive(privconn->pools.objs[i])) + numInactive++; + + return numInactive; +} + +static int +testStorageListDefinedPools(virConnectPtr conn, + char **const names, + int nnames) { + int n = 0, i; + GET_CONNECTION(conn); + + memset(names, 0, sizeof(*names)*nnames); + for (i = 0 ; i < privconn->pools.count && n < nnames ; i++) + if (!virStoragePoolObjIsActive(privconn->pools.objs[i]) && + !(names[n++] = strdup(privconn->pools.objs[i]->def->name))) + goto no_memory; + + return n; + +no_memory: + testError(conn, VIR_ERR_NO_MEMORY, NULL); + for (n = 0 ; n < nnames ; n++) + VIR_FREE(names[n]); + return (-1); +} + +static int +testStoragePoolRefresh(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED); + +static int +testStoragePoolStart(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + if (testStoragePoolRefresh(obj, 0) == 0) + return -1; + privpool->active = 1; + + return 0; +} + +static char * +testStorageFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED, + const char *type ATTRIBUTE_UNUSED, + const char *srcSpec ATTRIBUTE_UNUSED, + unsigned int flags ATTRIBUTE_UNUSED) +{ + return NULL; +} + + +static virStoragePoolPtr +testStoragePoolCreate(virConnectPtr conn, + const char *xml, + unsigned int flags ATTRIBUTE_UNUSED) { + virStoragePoolDefPtr def; + virStoragePoolObjPtr pool; + GET_CONNECTION(conn); + + if (!(def = virStoragePoolDefParse(conn, xml, NULL))) + return NULL; + + if (virStoragePoolObjFindByUUID(&privconn->pools, def->uuid) || + virStoragePoolObjFindByName(&privconn->pools, def->name)) { + testError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("storage pool already exists")); + virStoragePoolDefFree(def); + return NULL; + } + + if (!(pool = virStoragePoolObjAssignDef(conn, &privconn->pools, def))) { + virStoragePoolDefFree(def); + return NULL; + } + + if (testStoragePoolObjSetDefaults(pool) == -1) { + virStoragePoolObjRemove(&privconn->pools, pool); + return NULL; + } + pool->active = 1; + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static virStoragePoolPtr +testStoragePoolDefine(virConnectPtr conn, + const char *xml, + unsigned int flags ATTRIBUTE_UNUSED) { + virStoragePoolDefPtr def; + virStoragePoolObjPtr pool; + GET_CONNECTION(conn); + + if (!(def = virStoragePoolDefParse(conn, xml, NULL))) + return NULL; + + def->capacity = defaultPoolCap; + def->allocation = defaultPoolAlloc; + def->available = defaultPoolCap - defaultPoolAlloc; + + if (!(pool = virStoragePoolObjAssignDef(conn, &privconn->pools, def))) { + virStoragePoolDefFree(def); + return NULL; + } + + if (testStoragePoolObjSetDefaults(pool) == -1) { + virStoragePoolObjRemove(&privconn->pools, pool); + return NULL; + } + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static int +testStoragePoolUndefine(virStoragePoolPtr obj) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + virStoragePoolObjRemove(&privconn->pools, privpool); + + return 0; +} + +static int +testStoragePoolBuild(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + return 0; +} + + +static int +testStoragePoolDestroy(virStoragePoolPtr obj) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + + privpool->active = 0; + + if (privpool->configFile == NULL) + virStoragePoolObjRemove(&privconn->pools, privpool); + + return 0; +} + + +static int +testStoragePoolDelete(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + return 0; +} + + +static int +testStoragePoolRefresh(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + + return 0; +} + + +static int +testStoragePoolGetInfo(virStoragePoolPtr obj, + virStoragePoolInfoPtr info) { + GET_POOL(obj, -1); + + memset(info, 0, sizeof(virStoragePoolInfo)); + if (privpool->active) + info->state = VIR_STORAGE_POOL_RUNNING; + else + info->state = VIR_STORAGE_POOL_INACTIVE; + info->capacity = privpool->def->capacity; + info->allocation = privpool->def->allocation; + info->available = privpool->def->available; + + return 0; +} + +static char * +testStoragePoolDumpXML(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, NULL); + + return virStoragePoolDefFormat(obj->conn, privpool->def); +} + +static int +testStoragePoolGetAutostart(virStoragePoolPtr obj, + int *autostart) { + GET_POOL(obj, -1); + + if (!privpool->configFile) { + *autostart = 0; + } else { + *autostart = privpool->autostart; + } + + return 0; +} + +static int +testStoragePoolSetAutostart(virStoragePoolPtr obj, + int autostart) { + GET_POOL(obj, -1); + + if (!privpool->configFile) { + testError(obj->conn, VIR_ERR_INVALID_ARG, + "%s", _("pool has no config file")); + return -1; + } + + autostart = (autostart != 0); + + if (privpool->autostart == autostart) + return 0; + + privpool->autostart = autostart; + return 0; +} + + +static int +testStoragePoolNumVolumes(virStoragePoolPtr obj) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + + return privpool->volumes.count; +} + +static int +testStoragePoolListVolumes(virStoragePoolPtr obj, + char **const names, + int maxnames) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + int i = 0, n = 0; + + memset(names, 0, maxnames); + for (i = 0 ; i < privpool->volumes.count && n < maxnames ; i++) { + if ((names[n++] = strdup(privpool->volumes.objs[i]->name)) == NULL) { + testError(obj->conn, VIR_ERR_NO_MEMORY, "%s", _("name")); + goto cleanup; + } + } + + return n; + + cleanup: + for (n = 0 ; n < maxnames ; n++) + VIR_FREE(names[i]); + + memset(names, 0, maxnames); + return -1; +} + + +static virStorageVolPtr +testStorageVolumeLookupByName(virStoragePoolPtr obj, + const char *name ATTRIBUTE_UNUSED) { + GET_POOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + virStorageVolDefPtr vol = virStorageVolDefFindByName(privpool, name); + + if (!vol) { + testError(obj->conn, VIR_ERR_INVALID_STORAGE_VOL, + _("no storage vol with matching name '%s'"), name); + return NULL; + } + + return virGetStorageVol(obj->conn, privpool->def->name, + vol->name, vol->key); +} + + +static virStorageVolPtr +testStorageVolumeLookupByKey(virConnectPtr conn, + const char *key) { + GET_CONNECTION(conn); + unsigned int i; + + for (i = 0 ; i < privconn->pools.count ; i++) { + if (virStoragePoolObjIsActive(privconn->pools.objs[i])) { + virStorageVolDefPtr vol = + virStorageVolDefFindByKey(privconn->pools.objs[i], key); + + if (vol) + return virGetStorageVol(conn, + privconn->pools.objs[i]->def->name, + vol->name, + vol->key); + } + } + + testError(conn, VIR_ERR_INVALID_STORAGE_VOL, + _("no storage vol with matching key '%s'"), key); + return NULL; +} + +static virStorageVolPtr +testStorageVolumeLookupByPath(virConnectPtr conn, + const char *path) { + GET_CONNECTION(conn); + unsigned int i; + + for (i = 0 ; i < privconn->pools.count ; i++) { + if (virStoragePoolObjIsActive(privconn->pools.objs[i])) { + virStorageVolDefPtr vol = + virStorageVolDefFindByPath(privconn->pools.objs[i], path); + + if (vol) + return virGetStorageVol(conn, + privconn->pools.objs[i]->def->name, + vol->name, + vol->key); + } + } + + testError(conn, VIR_ERR_INVALID_STORAGE_VOL, + _("no storage vol with matching path '%s'"), path); + return NULL; +} + +static virStorageVolPtr +testStorageVolumeCreateXML(virStoragePoolPtr obj, + const char *xmldesc, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + virStorageVolDefPtr vol; + + vol = virStorageVolDefParse(obj->conn, privpool->def, xmldesc, NULL); + if (vol == NULL) + return NULL; + + if (virStorageVolDefFindByName(privpool, vol->name)) { + testError(obj->conn, VIR_ERR_INVALID_STORAGE_POOL, + "%s", _("storage vol already exists")); + virStorageVolDefFree(vol); + return NULL; + } + + /* Make sure enough space */ + if ((privpool->def->allocation + vol->allocation) > + privpool->def->capacity) { + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, + _("Not enough free space in pool for volume '%s'"), + vol->name); + virStorageVolDefFree(vol); + return NULL; + } + privpool->def->available = (privpool->def->capacity - + privpool->def->allocation); + + if (VIR_REALLOC_N(privpool->volumes.objs, + privpool->volumes.count+1) < 0) { + testError(obj->conn, VIR_ERR_NO_MEMORY, NULL); + virStorageVolDefFree(vol); + return NULL; + } + + if (VIR_ALLOC_N(vol->target.path, strlen(privpool->def->target.path) + + 1 + strlen(vol->name) + 1) < 0) { + virStorageVolDefFree(vol); + testError(obj->conn, VIR_ERR_NO_MEMORY, "%s", _("target")); + return NULL; + } + + strcpy(vol->target.path, privpool->def->target.path); + strcat(vol->target.path, "/"); + strcat(vol->target.path, vol->name); + vol->key = strdup(vol->target.path); + if (vol->key == NULL) { + virStorageVolDefFree(vol); + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, "%s", + _("storage vol key")); + return NULL; + } + + privpool->def->allocation += vol->allocation; + privpool->def->available = (privpool->def->capacity - + privpool->def->allocation); + + privpool->volumes.objs[privpool->volumes.count++] = vol; + + return virGetStorageVol(obj->conn, privpool->def->name, vol->name, + vol->key); +} + +static int +testStorageVolumeDelete(virStorageVolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL_FROM_VOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + GET_VOL(obj, privpool, -1); + int i; + + privpool->def->allocation -= privvol->allocation; + privpool->def->available = (privpool->def->capacity - + privpool->def->allocation); + + for (i = 0 ; i < privpool->volumes.count ; i++) { + if (privpool->volumes.objs[i] == privvol) { + virStorageVolDefFree(privvol); + + if (i < (privpool->volumes.count - 1)) + memmove(privpool->volumes.objs + i, + privpool->volumes.objs + i + 1, + sizeof(*(privpool->volumes.objs)) * + (privpool->volumes.count - (i + 1))); + + if (VIR_REALLOC_N(privpool->volumes.objs, + privpool->volumes.count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + privpool->volumes.count--; + + break; + } + } + + return 0; +} + + +static int testStorageVolumeTypeForPool(int pooltype) { + + switch(pooltype) { + case VIR_STORAGE_POOL_DIR: + case VIR_STORAGE_POOL_FS: + case VIR_STORAGE_POOL_NETFS: + return VIR_STORAGE_VOL_FILE; + default: + return VIR_STORAGE_VOL_BLOCK; + } +} + +static int +testStorageVolumeGetInfo(virStorageVolPtr obj, + virStorageVolInfoPtr info) { + GET_POOL_FROM_VOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + GET_VOL(obj, privpool, -1); + + memset(info, 0, sizeof(*info)); + info->type = testStorageVolumeTypeForPool(privpool->def->type); + info->capacity = privvol->capacity; + info->allocation = privvol->allocation; + + return 0; +} + +static char * +testStorageVolumeGetXMLDesc(virStorageVolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL_FROM_VOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + GET_VOL(obj, privpool, NULL); + + return virStorageVolDefFormat(obj->conn, privpool->def, privvol); +} + +static char * +testStorageVolumeGetPath(virStorageVolPtr obj) { + GET_POOL_FROM_VOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + GET_VOL(obj, privpool, NULL); + char *ret; + + ret = strdup(privvol->target.path); + if (ret == NULL) { + testError(obj->conn, VIR_ERR_NO_MEMORY, "%s", _("path")); + return NULL; + } + return ret; +} + static virDriver testDriver = { VIR_DRV_TEST, @@ -1575,11 +2287,42 @@ static virNetworkDriver testNetworkDriver = { testNetworkSetAutostart, /* networkSetAutostart */ }; - static virStorageDriver testStorageDriver = { .name = "Test", .open = testStorageOpen, .close = testStorageClose, + + .numOfPools = testStorageNumPools, + .listPools = testStorageListPools, + .numOfDefinedPools = testStorageNumDefinedPools, + .listDefinedPools = testStorageListDefinedPools, + .findPoolSources = testStorageFindPoolSources, + .poolLookupByName = testStoragePoolLookupByName, + .poolLookupByUUID = testStoragePoolLookupByUUID, + .poolLookupByVolume = testStoragePoolLookupByVolume, + .poolCreateXML = testStoragePoolCreate, + .poolDefineXML = testStoragePoolDefine, + .poolBuild = testStoragePoolBuild, + .poolUndefine = testStoragePoolUndefine, + .poolCreate = testStoragePoolStart, + .poolDestroy = testStoragePoolDestroy, + .poolDelete = testStoragePoolDelete, + .poolRefresh = testStoragePoolRefresh, + .poolGetInfo = testStoragePoolGetInfo, + .poolGetXMLDesc = testStoragePoolDumpXML, + .poolGetAutostart = testStoragePoolGetAutostart, + .poolSetAutostart = testStoragePoolSetAutostart, + .poolNumOfVolumes = testStoragePoolNumVolumes, + .poolListVolumes = testStoragePoolListVolumes, + + .volLookupByName = testStorageVolumeLookupByName, + .volLookupByKey = testStorageVolumeLookupByKey, + .volLookupByPath = testStorageVolumeLookupByPath, + .volCreateXML = testStorageVolumeCreateXML, + .volDelete = testStorageVolumeDelete, + .volGetInfo = testStorageVolumeGetInfo, + .volGetXMLDesc = testStorageVolumeGetXMLDesc, + .volGetPath = testStorageVolumeGetPath, }; /**

3 4

[libvirt] [PATCH] Domain Events Python Bindings
by Ben Guthro 29 Oct '08

29 Oct '08

Attached are the python bindings for domain events I have moved much of the complicated code from my prior submission out of C and into python. This required a slight change to the generator. The new convention that we came up with is to append <classname>.py to the class as it is being generated, iff that file exists. examples/domain-events/events-python/event-test.py | 186 +++++++++ python/generator.py | 16 python/libvir.c | 410 +++++++++++++++++++++ python/libvir.py | 20 + python/libvirt_wrap.h | 27 + python/types.c | 47 ++ python/virConnect.py | 46 ++ 7 files changed, 747 insertions(+), 5 deletions(-)

2 3

[libvirt] [PATCH] adding link to AMQP/QPid bindings
by Daniel Veillard 29 Oct '08

29 Oct '08

I applied this small patch to add a link to the new bindings pages under http://libvirt.org/qpid/ Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

1 0

[libvirt] PATCH: Move virRaiseError out of internal.h
by Daniel P. Berrange 29 Oct '08

29 Oct '08

This patch moves the definition for virRaiseError/virReportError out of the internal.h file, and into a newly created virterror.h file, to match naming of the virterror.c file where the implementation lives. Most code has to be updated to include virterror.h. This patch also drops the leading __ prefix on these two functions - it was pointless, since we never export it from the .so, not even for libvirtd use. The motivation for this change is to get clarity over our modularization. Every file in our source tree ultimately includes internal.h, but not everything is linking to the virterror.c file which includes the impl of virRaiseError. So it is good to avoid defining functions in header files which aren't available to those including the header. I've got a couple more patches of this type to following, so ultimately internal.h will just contain a bunch of common / useful macros and the include of the public libvirt.h file. The diffstat is large, but its mostly line noise - there's no functional change in this patch. b/src/virterror.h | 56 +++++++++++++++++++++++++++++++++ src/conf.c | 8 ++-- src/domain_conf.c | 5 +-- src/hash.c | 17 +++++----- src/internal.h | 24 -------------- src/libvirt.c | 44 +++++++++++++------------- src/lxc_conf.c | 1 src/lxc_conf.h | 2 - src/lxc_container.c | 1 src/lxc_controller.c | 2 - src/lxc_driver.c | 2 - src/network_conf.c | 5 +-- src/network_driver.c | 3 + src/nodeinfo.c | 16 ++++----- src/openvz_conf.c | 1 src/openvz_conf.h | 2 - src/openvz_driver.c | 2 - src/proxy_internal.c | 5 +-- src/qemu_conf.c | 1 src/qemu_conf.h | 2 - src/qemu_driver.c | 1 src/qparams.c | 3 + src/remote_internal.c | 70 +++++++++++++++++++++--------------------- src/sexpr.c | 4 +- src/stats_linux.c | 6 +-- src/storage_backend.c | 2 - src/storage_backend_disk.c | 2 - src/storage_backend_fs.c | 2 - src/storage_backend_iscsi.c | 2 - src/storage_backend_logical.c | 2 - src/storage_conf.c | 2 - src/storage_conf.h | 2 - src/storage_driver.c | 2 - src/test.c | 4 +- src/util.c | 4 +- src/virterror.c | 57 ++++++++++++++++------------------ src/xen_internal.c | 25 +++++++-------- src/xen_unified.c | 4 +- src/xend_internal.c | 3 + src/xm_internal.c | 3 + src/xml.c | 5 +-- src/xmlrpc.c | 6 +-- src/xs_internal.c | 4 +- 43 files changed, 228 insertions(+), 186 deletions(-) Daniel diff -r a1dc6ccb7f50 src/conf.c --- a/src/conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -18,7 +18,7 @@ #include <sys/stat.h> #include <fcntl.h> -#include "internal.h" +#include "virterror.h" #include "buf.h" #include "conf.h" #include "util.h" @@ -96,13 +96,13 @@ /* Construct the string 'filename:line: info' if we have that. */ if (ctxt && ctxt->filename) { - __virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, + virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, info, ctxt->filename, NULL, ctxt->line, 0, "%s:%d: %s", ctxt->filename, ctxt->line, info); } else { - format = __virErrorMsg(error, info); - __virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, + format = virErrorMsg(error, info); + virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, info, NULL, NULL, ctxt ? ctxt->line : 0, 0, format, info); diff -r a1dc6ccb7f50 src/domain_conf.c --- a/src/domain_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/domain_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -29,8 +29,7 @@ #include <fcntl.h> #include <dirent.h> -#include "internal.h" - +#include "virterror.h" #include "domain_conf.h" #include "memory.h" #include "verify.h" @@ -142,7 +141,7 @@ "pci") #define virDomainReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_DOMAIN, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_DOMAIN, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) virDomainObjPtr virDomainFindByID(const virDomainObjListPtr doms, diff -r a1dc6ccb7f50 src/hash.c --- a/src/hash.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/hash.c Wed Oct 29 11:36:21 2008 +0000 @@ -23,7 +23,8 @@ #include <string.h> #include <stdlib.h> #include <libxml/threads.h> -#include "internal.h" + +#include "virterror.h" #include "hash.h" #include "memory.h" @@ -32,7 +33,7 @@ /* #define DEBUG_GROW */ #define virHashError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /* @@ -732,8 +733,8 @@ virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName); virResetError(&conn->err); - if (__lastErr.conn == conn) - __lastErr.conn = NULL; + if (virLastErr.conn == conn) + virLastErr.conn = NULL; VIR_FREE(conn->name); @@ -862,8 +863,8 @@ if (conn->err.dom == domain) conn->err.dom = NULL; - if (__lastErr.dom == domain) - __lastErr.dom = NULL; + if (virLastErr.dom == domain) + virLastErr.dom = NULL; domain->magic = -1; domain->id = -1; VIR_FREE(domain->name); @@ -998,8 +999,8 @@ if (conn->err.net == network) conn->err.net = NULL; - if (__lastErr.net == network) - __lastErr.net = NULL; + if (virLastErr.net == network) + virLastErr.net = NULL; network->magic = -1; VIR_FREE(network->name); diff -r a1dc6ccb7f50 src/internal.h --- a/src/internal.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/internal.h Wed Oct 29 11:36:21 2008 +0000 @@ -295,30 +295,6 @@ }; -/************************************************************************ - * * - * API for error handling * - * * - ************************************************************************/ -extern virError __lastErr; -void __virRaiseError(virConnectPtr conn, - virDomainPtr dom, - virNetworkPtr net, - int domain, - int code, - virErrorLevel level, - const char *str1, - const char *str2, - const char *str3, - int int1, int int2, const char *msg, ...) - ATTRIBUTE_FORMAT(printf, 12, 13); -const char *__virErrorMsg(virErrorNumber error, const char *info); -void __virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, - const char *filename ATTRIBUTE_UNUSED, - const char *funcname ATTRIBUTE_UNUSED, - long long linenr ATTRIBUTE_UNUSED, - const char *fmt, ...) - ATTRIBUTE_FORMAT(printf, 7, 8); /************************************************************************ * * diff -r a1dc6ccb7f50 src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 11:36:21 2008 +0000 @@ -31,7 +31,7 @@ #include <winsock2.h> #endif -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "uuid.h" @@ -325,9 +325,9 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); - __virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + errmsg = virErrorMsg(error, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -346,9 +346,9 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); - __virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_WARNING, - errmsg, info, NULL, 0, 0, errmsg, info); + errmsg = virErrorMsg(error, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_WARNING, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -369,12 +369,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_DOMAIN) { conn = domain->conn; } - __virRaiseError(conn, domain, NULL, VIR_FROM_DOM, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, domain, NULL, VIR_FROM_DOM, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -395,12 +395,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_NETWORK) { conn = network->conn; } - __virRaiseError(conn, NULL, network, VIR_FROM_NET, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, NULL, network, VIR_FROM_NET, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -421,12 +421,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_STORAGE_POOL) conn = pool->conn; - __virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -447,12 +447,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_STORAGE_VOL) conn = vol->conn; - __virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -855,13 +855,13 @@ /* If no global error was set, copy any error set in the connection object we're about to dispose of */ - if (__lastErr.code == VIR_ERR_OK) { - memcpy(&__lastErr, &ret->err, sizeof(ret->err)); + if (virLastErr.code == VIR_ERR_OK) { + memcpy(&virLastErr, &ret->err, sizeof(ret->err)); memset(&ret->err, 0, sizeof(ret->err)); } /* Still no error set, then raise a generic error */ - if (__lastErr.code == VIR_ERR_OK) + if (virLastErr.code == VIR_ERR_OK) virLibConnError (NULL, VIR_ERR_INTERNAL_ERROR, _("unable to open connection")); diff -r a1dc6ccb7f50 src/lxc_conf.c --- a/src/lxc_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -27,6 +27,7 @@ #include <sys/utsname.h> +#include "virterror.h" #include "lxc_conf.h" /* Functions */ diff -r a1dc6ccb7f50 src/lxc_conf.h --- a/src/lxc_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -50,7 +50,7 @@ virCapsPtr lxcCapsInit(void); #define lxcError(conn, dom, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_LXC, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_LXC, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) #endif /* LXC_CONF_H */ diff -r a1dc6ccb7f50 src/lxc_container.c --- a/src/lxc_container.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_container.c Wed Oct 29 11:36:21 2008 +0000 @@ -41,6 +41,7 @@ /* For MS_MOVE */ #include <linux/fs.h> +#include "virterror.h" #include "lxc_container.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/lxc_controller.c --- a/src/lxc_controller.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_controller.c Wed Oct 29 11:36:21 2008 +0000 @@ -34,7 +34,7 @@ #include <signal.h> #include <getopt.h> -#include "internal.h" +#include "virterror.h" #include "util.h" #include "lxc_conf.h" diff -r a1dc6ccb7f50 src/lxc_driver.c --- a/src/lxc_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -35,7 +35,7 @@ #include <unistd.h> #include <wait.h> -#include "internal.h" +#include "virterror.h" #include "lxc_conf.h" #include "lxc_container.h" #include "lxc_driver.h" diff -r a1dc6ccb7f50 src/network_conf.c --- a/src/network_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/network_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -33,8 +33,7 @@ #include <string.h> #include <dirent.h> -#include "internal.h" - +#include "virterror.h" #include "network_conf.h" #include "memory.h" #include "xml.h" @@ -50,7 +49,7 @@ "none", "nat", "route" ) #define virNetworkReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_NETWORK, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_NETWORK, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) virNetworkObjPtr virNetworkFindByUUID(const virNetworkObjListPtr nets, diff -r a1dc6ccb7f50 src/network_driver.c --- a/src/network_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/network_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -44,6 +44,7 @@ #include <sys/wait.h> #include <sys/ioctl.h> +#include "virterror.h" #include "network_driver.h" #include "network_conf.h" #include "driver.h" @@ -73,7 +74,7 @@ #define networkLog(level, msg...) fprintf(stderr, msg) #define networkReportError(conn, dom, net, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/nodeinfo.c --- a/src/nodeinfo.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/nodeinfo.c Wed Oct 29 11:36:21 2008 +0000 @@ -33,7 +33,7 @@ #include <sys/utsname.h> #endif -#include "internal.h" +#include "virterror.h" #include "nodeinfo.h" #include "physmem.h" #include "util.h" @@ -63,7 +63,7 @@ while (*buf && c_isspace(*buf)) buf++; if (*buf != ':') { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "parsing cpuinfo processor"); return -1; @@ -76,7 +76,7 @@ while (*buf && c_isspace(*buf)) buf++; if (*buf != ':' || !buf[1]) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "parsing cpuinfo cpu MHz"); return -1; @@ -92,7 +92,7 @@ while (*buf && c_isspace(*buf)) buf++; if (*buf != ':' || !buf[1]) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "parsing cpuinfo cpu cores %c", *buf); return -1; @@ -105,7 +105,7 @@ } if (!nodeinfo->cpus) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "no cpus found"); return -1; @@ -129,7 +129,7 @@ struct utsname info; if (uname(&info) < 0) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "cannot extract machine type %s", strerror(errno)); return -1; @@ -148,7 +148,7 @@ int ret; FILE *cpuinfo = fopen(CPUINFO_PATH, "r"); if (!cpuinfo) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "cannot open %s %s", CPUINFO_PATH, strerror(errno)); return -1; @@ -165,7 +165,7 @@ } #else /* XXX Solaris will need an impl later if they port QEMU driver */ - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s:%s not implemented on this platform\n", __FILE__, __FUNCTION__); return -1; diff -r a1dc6ccb7f50 src/openvz_conf.c --- a/src/openvz_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/openvz_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -43,6 +43,7 @@ #include <sys/utsname.h> #include <sys/wait.h> +#include "virterror.h" #include "openvz_conf.h" #include "uuid.h" #include "buf.h" diff -r a1dc6ccb7f50 src/openvz_conf.h --- a/src/openvz_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/openvz_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -42,7 +42,7 @@ fprintf(stderr, "\n"); } #define openvzError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_OPENVZ, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_OPENVZ, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/openvz_driver.c --- a/src/openvz_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/openvz_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -47,7 +47,7 @@ #include <stdio.h> #include <sys/wait.h> -#include "internal.h" +#include "virterror.h" #include "openvz_driver.h" #include "event.h" #include "buf.h" diff -r a1dc6ccb7f50 src/proxy_internal.c --- a/src/proxy_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/proxy_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -21,7 +21,8 @@ #include <sys/un.h> #include <sys/wait.h> #include <string.h> -#include "internal.h" + +#include "virterror.h" #include "driver.h" #include "proxy_internal.h" #include "util.h" @@ -93,7 +94,7 @@ ************************************************************************/ #define virProxyError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_PROXY, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_PROXY, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /************************************************************************ diff -r a1dc6ccb7f50 src/qemu_conf.c --- a/src/qemu_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qemu_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -40,6 +40,7 @@ #include <numa.h> #endif +#include "virterror.h" #include "qemu_conf.h" #include "uuid.h" #include "buf.h" diff -r a1dc6ccb7f50 src/qemu_conf.h --- a/src/qemu_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qemu_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -70,7 +70,7 @@ #define qemudReportError(conn, dom, net, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/qemu_driver.c --- a/src/qemu_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qemu_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -52,6 +52,7 @@ #include <sched.h> #endif +#include "virterror.h" #include "qemu_driver.h" #include "qemu_conf.h" #include "c-ctype.h" diff -r a1dc6ccb7f50 src/qparams.c --- a/src/qparams.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qparams.c Wed Oct 29 11:36:21 2008 +0000 @@ -26,12 +26,13 @@ #include <stdlib.h> #include <stdarg.h> +#include "virterror.h" #include "buf.h" #include "memory.h" #include "qparams.h" #define qparam_report_oom(void) \ - __virReportErrorHelper(NULL, VIR_FROM_NONE, VIR_ERR_NO_MEMORY, \ + virReportErrorHelper(NULL, VIR_FROM_NONE, VIR_ERR_NO_MEMORY, \ __FILE__, __FUNCTION__, __LINE__, NULL) struct qparam_set * diff -r a1dc6ccb7f50 src/remote_internal.c --- a/src/remote_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/remote_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -73,7 +73,7 @@ # define AI_ADDRCONFIG 0 #endif -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "buf.h" #include "qparams.h" @@ -3675,7 +3675,7 @@ } else if (STRCASEEQ(authtype, "polkit")) { want = REMOTE_AUTH_POLKIT; } else { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown authentication type %s"), authtype); @@ -3686,7 +3686,7 @@ type = want; } if (type == REMOTE_AUTH_NONE) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("requested authentication type %s rejected"), authtype); @@ -3726,7 +3726,7 @@ break; default: - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unsupported authentication type %d"), @@ -3756,7 +3756,7 @@ host, sizeof(host), port, sizeof(port), NI_NUMERICHOST | NI_NUMERICSERV)) != 0) { - __virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_NO_MEMORY, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Cannot resolve address %d: %s"), @@ -3765,7 +3765,7 @@ } if (VIR_ALLOC_N(addr, strlen(host) + 1 + strlen(port) + 1) < 0) { - __virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_NO_MEMORY, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "address"); @@ -3975,7 +3975,7 @@ /* Sets up the SASL library as a whole */ err = sasl_client_init(NULL); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("failed to initialize SASL library: %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -3985,7 +3985,7 @@ /* Get local address in form IPADDR:PORT */ salen = sizeof(sa); if (getsockname(priv->sock, (struct sockaddr*)&sa, &salen) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("failed to get sock address %d (%s)"), errno, strerror(errno)); @@ -3997,7 +3997,7 @@ /* Get remote address in form IPADDR:PORT */ salen = sizeof(sa); if (getpeername(priv->sock, (struct sockaddr*)&sa, &salen) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("failed to get peer address %d (%s)"), errno, strerror(errno)); @@ -4023,7 +4023,7 @@ &saslconn); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Failed to create SASL client context: %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4036,7 +4036,7 @@ cipher = gnutls_cipher_get(priv->session); if (!(ssf = (sasl_ssf_t)gnutls_cipher_get_key_size(cipher))) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("invalid cipher size for TLS session")); goto cleanup; @@ -4046,7 +4046,7 @@ DEBUG("Setting external SSF %d", ssf); err = sasl_setprop(saslconn, SASL_SSF_EXTERNAL, &ssf); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("cannot set external SSF %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4065,7 +4065,7 @@ err = sasl_setprop(saslconn, SASL_SEC_PROPS, &secprops); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("cannot set security props %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4083,7 +4083,7 @@ mechlist = iret.mechlist; if (wantmech) { if (strstr(mechlist, wantmech) == NULL) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("SASL mechanism %s not supported by server"), @@ -4103,7 +4103,7 @@ &clientoutlen, &mech); if (err != SASL_OK && err != SASL_CONTINUE && err != SASL_INTERACT) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Failed to start SASL negotiation: %d (%s)"), err, sasl_errdetail(saslconn)); @@ -4120,7 +4120,7 @@ } if ((ncred = remoteAuthMakeCredentials(interact, &cred)) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("Failed to make auth credentials")); @@ -4137,7 +4137,7 @@ } else { msg = "No authentication callback available"; } - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", msg); goto cleanup; @@ -4145,7 +4145,7 @@ VIR_FREE(iret.mechlist); if (clientoutlen > REMOTE_AUTH_SASL_DATA_MAX) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("SASL negotiation data too long: %d bytes"), clientoutlen); @@ -4185,7 +4185,7 @@ &clientout, &clientoutlen); if (err != SASL_OK && err != SASL_CONTINUE && err != SASL_INTERACT) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Failed SASL step: %d (%s)"), err, sasl_errdetail(saslconn)); @@ -4199,7 +4199,7 @@ cred = NULL; } if ((ncred = remoteAuthMakeCredentials(interact, &cred)) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("Failed to make auth credentials")); goto cleanup; @@ -4214,7 +4214,7 @@ } else { msg = "No authentication callback available"; } - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", msg); goto cleanup; @@ -4262,7 +4262,7 @@ if (!priv->uses_tls) { err = sasl_getprop(saslconn, SASL_SSF, &val); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("cannot query SASL ssf on connection %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4271,7 +4271,7 @@ ssf = *(const int *)val; DEBUG("SASL SSF value %d", ssf); if (ssf < 56) { /* 56 == DES level, good for Kerberos */ - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("negotiation SSF %d was not strong enough"), ssf); goto cleanup; @@ -4325,7 +4325,7 @@ if (allowcb) { /* Run the authentication callback */ if ((*(auth->cb))(&cred, 1, auth->cbdata) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("Failed to collect auth credentials")); return -1; @@ -4509,7 +4509,7 @@ /* Check program, version, etc. are what we expect. */ if (hdr.prog != REMOTE_PROGRAM) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown program (received %x, expected %x)"), @@ -4517,7 +4517,7 @@ return -1; } if (hdr.vers != REMOTE_PROTOCOL_VERSION) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown protocol version (received %x, expected %x)"), @@ -4540,7 +4540,7 @@ goto retry_read; } if (hdr.proc != proc_nr) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown procedure (received %x, expected %x)"), @@ -4548,7 +4548,7 @@ return -1; } if (hdr.direction != REMOTE_REPLY) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown direction (received %x, expected %x)"), @@ -4556,7 +4556,7 @@ return -1; } if (hdr.serial != serial) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown serial (received %x, expected %x)"), hdr.serial, serial); @@ -4599,7 +4599,7 @@ return -1; default: - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown status (received %x)"), hdr.status); @@ -4809,8 +4809,8 @@ { const char *errmsg; - errmsg = __virErrorMsg (code, info); - __virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, + errmsg = virErrorMsg (code, info); + virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, code, VIR_ERR_ERROR, errmsg, info, NULL, 0, 0, errmsg, info); } @@ -4832,8 +4832,8 @@ errorMessage[0] = '\0'; } - errmsg = __virErrorMsg (code, errorMessage); - __virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, + errmsg = virErrorMsg (code, errorMessage); + virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, code, VIR_ERR_ERROR, errmsg, errorMessage, NULL, -1, -1, errmsg, errorMessage); @@ -4850,7 +4850,7 @@ dom = err->dom ? get_nonnull_domain (conn, *err->dom) : NULL; net = err->net ? get_nonnull_network (conn, *err->net) : NULL; - __virRaiseError (conn, dom, net, + virRaiseError (conn, dom, net, err->domain, err->code, err->level, err->str1 ? *err->str1 : NULL, err->str2 ? *err->str2 : NULL, diff -r a1dc6ccb7f50 src/sexpr.c --- a/src/sexpr.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/sexpr.c Wed Oct 29 11:36:21 2008 +0000 @@ -18,13 +18,13 @@ #include "c-ctype.h" #include <errno.h> -#include "internal.h" +#include "virterror.h" #include "sexpr.h" #include "util.h" #include "memory.h" #define virSexprError(code, fmt...) \ - __virReportErrorHelper(NULL, VIR_FROM_SEXPR, code, __FILE__, \ + virReportErrorHelper(NULL, VIR_FROM_SEXPR, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /** diff -r a1dc6ccb7f50 src/stats_linux.c --- a/src/stats_linux.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/stats_linux.c Wed Oct 29 11:36:21 2008 +0000 @@ -24,7 +24,7 @@ #include <xs.h> #endif -#include "internal.h" +#include "virterror.h" #include "util.h" #include "xen_unified.h" #include "stats_linux.h" @@ -48,13 +48,13 @@ char fullinfo[1000]; const char *errmsg; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (func != NULL) { snprintf(fullinfo, sizeof (fullinfo) - 1, "%s: %s", func, info); fullinfo[sizeof (fullinfo) - 1] = 0; info = fullinfo; } - __virRaiseError(conn, NULL, NULL, VIR_FROM_STATS_LINUX, error, + virRaiseError(conn, NULL, NULL, VIR_FROM_STATS_LINUX, error, VIR_ERR_ERROR, errmsg, info, NULL, value, 0, errmsg, info, value); diff -r a1dc6ccb7f50 src/storage_backend.c --- a/src/storage_backend.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend.c Wed Oct 29 11:36:21 2008 +0000 @@ -41,7 +41,7 @@ #include <selinux/selinux.h> #endif -#include "internal.h" +#include "virterror.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/storage_backend_disk.c --- a/src/storage_backend_disk.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_disk.c Wed Oct 29 11:36:21 2008 +0000 @@ -25,7 +25,7 @@ #include <string.h> #include <unistd.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_disk.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/storage_backend_fs.c --- a/src/storage_backend_fs.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_fs.c Wed Oct 29 11:36:21 2008 +0000 @@ -40,7 +40,7 @@ #include <libxml/tree.h> #include <libxml/xpath.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_fs.h" #include "storage_conf.h" #include "util.h" diff -r a1dc6ccb7f50 src/storage_backend_iscsi.c --- a/src/storage_backend_iscsi.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_iscsi.c Wed Oct 29 11:36:21 2008 +0000 @@ -34,7 +34,7 @@ #include <unistd.h> #include <dirent.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_iscsi.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/storage_backend_logical.c --- a/src/storage_backend_logical.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_logical.c Wed Oct 29 11:36:21 2008 +0000 @@ -31,7 +31,7 @@ #include <unistd.h> #include <fcntl.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_logical.h" #include "storage_conf.h" #include "util.h" diff -r a1dc6ccb7f50 src/storage_conf.c --- a/src/storage_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -38,7 +38,7 @@ #include <fcntl.h> #include <string.h> -#include "internal.h" +#include "virterror.h" #include "storage_conf.h" #include "storage_backend.h" #include "xml.h" diff -r a1dc6ccb7f50 src/storage_conf.h --- a/src/storage_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -262,7 +262,7 @@ } #define virStorageReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_STORAGE, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_STORAGE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) int virStoragePoolLoadAllConfigs(virConnectPtr conn, diff -r a1dc6ccb7f50 src/storage_driver.c --- a/src/storage_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -32,7 +32,7 @@ #include <errno.h> #include <string.h> -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "util.h" #include "storage_driver.h" diff -r a1dc6ccb7f50 src/test.c --- a/src/test.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/test.c Wed Oct 29 11:36:21 2008 +0000 @@ -30,6 +30,8 @@ #include <unistd.h> #include <sys/stat.h> + +#include "virterror.h" #include "test.h" #include "buf.h" #include "util.h" @@ -113,7 +115,7 @@ #define testError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_TEST, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_TEST, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) static virCapsPtr diff -r a1dc6ccb7f50 src/util.c --- a/src/util.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/util.c Wed Oct 29 11:36:21 2008 +0000 @@ -47,7 +47,7 @@ #include <paths.h> #endif -#include "internal.h" +#include "virterror.h" #include "event.h" #include "buf.h" #include "util.h" @@ -67,7 +67,7 @@ #ifndef PROXY #define ReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) int virFileStripSuffix(char *str, diff -r a1dc6ccb7f50 src/virterror.c --- a/src/virterror.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/virterror.c Wed Oct 29 11:36:21 2008 +0000 @@ -15,18 +15,17 @@ #include <string.h> #include <stdarg.h> -#include "internal.h" -#include "libvirt/virterror.h" +#include "virterror.h" -virError __lastErr = /* the last error */ +virError virLastErr = /* the last error */ { .code = 0, .domain = 0, .message = NULL, .level = VIR_ERR_NONE, .conn = NULL, .dom = NULL, .str1 = NULL, .str2 = NULL, .str3 = NULL, .int1 = 0, .int2 = 0, .net = NULL }; -static virErrorFunc virErrorHandler = NULL; /* global error handler */ -static void *virUserData = NULL; /* associated data */ +virErrorFunc virErrorHandler = NULL; /* global error handler */ +void *virUserData = NULL; /* associated data */ /* - * Macro used to format the message as a string in __virRaiseError + * Macro used to format the message as a string in virRaiseError * and borrowed from libxml2. */ #define VIR_GET_VAR_STR(msg, str) { \ @@ -74,9 +73,9 @@ virErrorPtr virGetLastError(void) { - if (__lastErr.code == VIR_ERR_OK) + if (virLastErr.code == VIR_ERR_OK) return (NULL); - return (&__lastErr); + return (&virLastErr); } /* @@ -94,10 +93,10 @@ { if (to == NULL) return (-1); - if (__lastErr.code == VIR_ERR_OK) + if (virLastErr.code == VIR_ERR_OK) return (0); - memcpy(to, &__lastErr, sizeof(virError)); - return (__lastErr.code); + memcpy(to, &virLastErr, sizeof(virError)); + return (virLastErr.code); } /** @@ -126,7 +125,7 @@ void virResetLastError(void) { - virResetError(&__lastErr); + virResetError(&virLastErr); } /** @@ -331,7 +330,7 @@ } /** - * __virRaiseError: + * virRaiseError: * @conn: the connection to the hypervisor if available * @dom: the domain if available * @net: the network if available @@ -350,12 +349,12 @@ * immediately if a callback is found and store it for later handling. */ void -__virRaiseError(virConnectPtr conn, virDomainPtr dom, virNetworkPtr net, - int domain, int code, virErrorLevel level, - const char *str1, const char *str2, const char *str3, - int int1, int int2, const char *msg, ...) +virRaiseError(virConnectPtr conn, virDomainPtr dom, virNetworkPtr net, + int domain, int code, virErrorLevel level, + const char *str1, const char *str2, const char *str3, + int int1, int int2, const char *msg, ...) { - virErrorPtr to = &__lastErr; + virErrorPtr to = &virLastErr; void *userData = virUserData; virErrorFunc handler = virErrorHandler; char *str; @@ -414,7 +413,7 @@ } /** - * __virErrorMsg: + * virErrorMsg: * @error: the virErrorNumber * @info: usually the first parameter string * @@ -424,7 +423,7 @@ * Returns the constant string associated to @error */ const char * -__virErrorMsg(virErrorNumber error, const char *info) +virErrorMsg(virErrorNumber error, const char *info) { const char *errmsg = NULL; @@ -724,7 +723,7 @@ } /** - * __virReportErrorHelper + * virReportErrorHelper * * @conn: the connection to the hypervisor if available * @dom: the domain if available @@ -740,11 +739,11 @@ * Helper function to do most of the grunt work for individual driver * ReportError */ -void __virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, - const char *filename ATTRIBUTE_UNUSED, - const char *funcname ATTRIBUTE_UNUSED, - long long linenr ATTRIBUTE_UNUSED, - const char *fmt, ...) +void virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, + const char *filename ATTRIBUTE_UNUSED, + const char *funcname ATTRIBUTE_UNUSED, + long long linenr ATTRIBUTE_UNUSED, + const char *fmt, ...) { va_list args; char errorMessage[1024]; @@ -758,8 +757,8 @@ errorMessage[0] = '\0'; } - virerr = __virErrorMsg(errcode, (errorMessage[0] ? errorMessage : NULL)); - __virRaiseError(conn, NULL, NULL, domcode, errcode, VIR_ERR_ERROR, - virerr, errorMessage, NULL, -1, -1, virerr, errorMessage); + virerr = virErrorMsg(errcode, (errorMessage[0] ? errorMessage : NULL)); + virRaiseError(conn, NULL, NULL, domcode, errcode, VIR_ERR_ERROR, + virerr, errorMessage, NULL, -1, -1, virerr, errorMessage); } diff -r a1dc6ccb7f50 src/virterror.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/virterror.h Wed Oct 29 11:36:21 2008 +0000 @@ -0,0 +1,56 @@ +/* + * virterror.h: internal error handling + * + * Copyright (C) 2006-2008 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __VIRT_ERROR_H_ +#define __VIRT_ERROR_H_ + +#include "internal.h" + +extern virError virLastErr; +extern virErrorFunc virErrorHandler; +extern void *virUserData; + +/************************************************************************ + * * + * API for error handling * + * * + ************************************************************************/ +void virRaiseError(virConnectPtr conn, + virDomainPtr dom, + virNetworkPtr net, + int domain, + int code, + virErrorLevel level, + const char *str1, + const char *str2, + const char *str3, + int int1, int int2, const char *msg, ...) + ATTRIBUTE_FORMAT(printf, 12, 13); +const char *virErrorMsg(virErrorNumber error, const char *info); +void virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, + const char *filename ATTRIBUTE_UNUSED, + const char *funcname ATTRIBUTE_UNUSED, + long long linenr ATTRIBUTE_UNUSED, + const char *fmt, ...) + ATTRIBUTE_FORMAT(printf, 7, 8); + + +#endif diff -r a1dc6ccb7f50 src/xen_internal.c --- a/src/xen_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xen_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -26,11 +26,6 @@ #include <errno.h> #include <sys/utsname.h> -#include "xs_internal.h" -#include "stats_linux.h" -#include "xend_internal.h" -#include "util.h" - /* required for dom0_getdomaininfo_t */ #include <xen/dom0_ops.h> #include <xen/version.h> @@ -45,6 +40,14 @@ /* required for shutdown flags */ #include <xen/sched.h> +#include "virterror.h" +#include "driver.h" +#include "util.h" +#include "xen_unified.h" +#include "xen_internal.h" +#include "xs_internal.h" +#include "stats_linux.h" +#include "xend_internal.h" #include "buf.h" #include "capabilities.h" #include "memory.h" @@ -653,10 +656,6 @@ }; typedef struct xen_op_v2_dom xen_op_v2_dom; -#include "internal.h" -#include "driver.h" -#include "xen_unified.h" -#include "xen_internal.h" #ifdef __linux__ #define XEN_HYPERVISOR_SOCKET "/proc/xen/privcmd" @@ -720,7 +719,7 @@ #define virXenError(conn, code, fmt...) \ if (in_init == 0) \ - __virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) #ifndef PROXY @@ -747,15 +746,15 @@ return; - errmsg = __virErrorMsg(error, info); + errmsg =virErrorMsg(error, info); if (func != NULL) { snprintf(fullinfo, 999, "%s: %s", func, info); fullinfo[999] = 0; - __virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, + virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, errmsg, fullinfo, NULL, value, 0, errmsg, fullinfo, value); } else { - __virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, + virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, errmsg, info, NULL, value, 0, errmsg, info, value); } diff -r a1dc6ccb7f50 src/xen_unified.c --- a/src/xen_unified.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xen_unified.c Wed Oct 29 11:36:21 2008 +0000 @@ -27,7 +27,7 @@ #include <xen/dom0_ops.h> #include <libxml/uri.h> -#include "internal.h" +#include "virterror.h" #include "xen_unified.h" @@ -59,7 +59,7 @@ }; #define xenUnifiedError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /* diff -r a1dc6ccb7f50 src/xend_internal.c --- a/src/xend_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xend_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -32,6 +32,7 @@ #include <libxml/uri.h> #include <errno.h> +#include "virterror.h" #include "xend_internal.h" #include "driver.h" #include "util.h" @@ -105,7 +106,7 @@ #endif #define virXendError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XEND, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XEND, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) #define virXendErrorInt(conn, code, ival) \ diff -r a1dc6ccb7f50 src/xm_internal.c --- a/src/xm_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xm_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -35,6 +35,7 @@ #include <stdint.h> #include <xen/dom0_ops.h> +#include "virterror.h" #include "xm_internal.h" #include "xen_unified.h" #include "xend_internal.h" @@ -123,7 +124,7 @@ }; #define xenXMError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XENXM, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XENXM, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) int diff -r a1dc6ccb7f50 src/xml.c --- a/src/xml.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xml.c Wed Oct 29 11:36:21 2008 +0000 @@ -16,14 +16,15 @@ #include <stdarg.h> #include <limits.h> #include <math.h> /* for isnan() */ -#include "internal.h" + +#include "virterror.h" #include "xml.h" #include "buf.h" #include "util.h" #include "memory.h" #define virXMLError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XML, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XML, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/xmlrpc.c --- a/src/xmlrpc.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xmlrpc.c Wed Oct 29 11:36:21 2008 +0000 @@ -11,7 +11,7 @@ #include <config.h> #include "xmlrpc.h" -#include "internal.h" +#include "virterror.h" #include "memory.h" #include <libxml/nanohttp.h> @@ -41,8 +41,8 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); - __virRaiseError(NULL, NULL, NULL, VIR_FROM_RPC, error, VIR_ERR_ERROR, + errmsg = virErrorMsg(error, info); + virRaiseError(NULL, NULL, NULL, VIR_FROM_RPC, error, VIR_ERR_ERROR, errmsg, info, NULL, value, 0, errmsg, info, value); } diff -r a1dc6ccb7f50 src/xs_internal.c --- a/src/xs_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xs_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -26,7 +26,7 @@ #include <xs.h> -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "xen_unified.h" #include "xs_internal.h" @@ -88,7 +88,7 @@ #endif /* ! PROXY */ #define virXenStoreError(conn, code, fmt...) \ - __virReportErrorHelper(NULL, VIR_FROM_XENSTORE, code, __FILE__, \ + virReportErrorHelper(NULL, VIR_FROM_XENSTORE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /************************************************************************ -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 3

[libvirt] [RFC] sVirt v0.10 - initial prototype
by James Morris 29 Oct '08

29 Oct '08

This is a request for comments on the initial prototype release of sVirt, a project to add security labeling support to Linux-based virtualization. Project page: http://www.selinuxproject.org/page/SVirt Previous libvirt discussions: High-level requirements: https://www.redhat.com/archives/libvir-list/2008-August/msg00255.html XML security labels: https://www.redhat.com/archives/libvir-list/2008-August/msg00740.html A patch for libvirt is attached; and also included in a release tarball at http://namei.org/svirt/. See 'readme.txt' there for more details on building and running the code. The purpose of this release is to establish a proof of concept of applying security labels to VMs, and for discussion of the underlying technical approach. With this release, it is possible to define a security label for a kvm/qemu domain in its XML configuration ('virsh edit'), launch the domain and have it transition to the specified security label ('virsh start'), then query the security label of the running domain ('virsh dominfo'). The following changes were made to libvirt: 1. Implementing a pluggable security label driver framework; 2. Implementing an SELinux security label driver for (1); 3. Wiring the security label framework into the Qemu driver; 4. Implementing basic libvirt API calls for initializing the driver, and getting/setting domain security labels; 5. Extending the domain XML configuration to include security labels; 6. Adding domain security label display/edit/dump support to virsh. One of the design principles I've followed with this is to reduce or eliminate configuration wherever possible. If a variety of security labeling drivers are present, libvirtd automatically detects which one to enable and enables it. e.g. if SELinux is enabled on the system, the SELinux labeling driver is enabled automatically when livbirtd starts. Another is to treat security labels as opaque unless they're actually being used for security purposes (e.g. to launch the domain). So, virsh and the domain configuration code currently do not need to semantically interpet security labels, just understand their format. This should suit the initial simple goal of isolated domains, which only requires security labels to be distinct. The domain security label configuration format is as follows: # virsh dumpxml sys1 <domain> .... <seclabel model='selinux'> <label>system_u:system_r:virtd_t:s0</label> <policytype>targeted</policytype> </seclabel> </domain> It's possible to query the security label of a running domain via virsh: # virsh dominfo sys1 Id: 1 Name: sys1 UUID: fa3c8e06-0877-2a08-06fd-f2479b7bacb4 OS Type: hvm State: running CPU(s): 1 CPU time: 11.4s Max memory: 524288 kB Used memory: 524288 kB Autostart: disable Security label: system_u:system_r:virtd_t:s0 (selinux/targeted/enforcing) The security label is deterimed via the new virDomainGetSecLabel() API method, which is transported over RPC to the backend driver (qemu in this case), and is entirely independent of the local security model, if any. e.g. this command could be run remotely from an entirely different platform: you just see what's happening on the remote system, as with other attributes of the domain. Feedback on the design thus far is sought before proceeding to more comprehensive integration. In particular, I'd be interested in any thoughts on the placement of the security labeling driver within libvirt, as this seems to be the most critical architectural issue (I've already refactored this aspect once). Currently, the idea is to attach the security labeling driver to the virt driver, rather than implement it independently as a top-level component as in the case of other types of drivers (e.g. storage). This is because process-based security labeling is highly dependent on the kind of virtualization in use, and may not make sense at all in some cases (e.g. when using a non-Linux hypervisor, or containers). In the case of qemu, a security labeling driver is added to qemud: @@ -63,6 +64,7 @@ struct qemud_driver { char *vncListen; virCapsPtr caps; + virSecLabelDriverPtr secLabelDriver; }; and then initialized during qemud startup from qemudSecLabelInit(). During initialization, any available security labeling drivers are probed, and the first one which thinks it should be used is installed. Top-level libvirt API calls are then dispatched to the active security labeling driver via the backend virt driver, as necessary. Note that the security labeling framework in this release is always built-in -- it can be made a compile-time option later if desired. Requirements not yet addressed include: - Labeling of resources and generally comprehensive labeling management - Automatic labeling (e.g. for the simple isolation use-case) - Integration of labeling support into higher-level management tools such as virt-manager - Integration with the audit subsystem to help with administration and debugging - Domain of interpretation (DOI) checking/translation - Python bindings As mentioned, the goal at this stage is to get feedback on the underlying design: comments welcome! - James -- James Morris <jmorris(a)namei.org>

7 18

[libvirt] [PATCH] qemu/kvm: allow to hotadd scsi/virtio disks
by Guido Günther 29 Oct '08

29 Oct '08

Hi, recent kvm allows to hot add scsi/virtio disks, it uses pci hotplugging for that. Attached patch adds support for this to libvirt. -- Guido

3 10

[libvirt] [PATCH] fix memory leak in __virStringListFree
by David Lively 29 Oct '08

29 Oct '08

Currently __virStringListFree is freeing only the list nodes, but not the strings on the list (and neither is anyone else freeing these). This small patch fixes that, and documents the two __virStringList functions. Dave

2 1

[libvirt] [PATCH] fix JNI flags in libvirt-java build
by David Lively 29 Oct '08

29 Oct '08

This tiny patch adds $LIBVIRT_CFLAGS to the flags used when compiling the Java Native Interface C code in libvirt-java. This allows one to build, for example, against a local (non-installed) libvirt tree. Dave

2 1

[libvirt] [RFC] domain-events-python
by Ben Guthro 29 Oct '08

29 Oct '08

Attached is a preliminary patch implementing the python bindings for domain events, and the EventImpl code. This implements a python test app equivalent to the code in the C event-test app. Contrary to what Daniel B originally suggested, I thought that the EventImpl would be useful to expose for apps that are strictly using python, and not integrating with glib, or another event loop. It also makes the test case easier to debug. I have not marked this with [PATCH] in the subject, as I don't believe it is quite complete. I am still having a few issues with the Refcounting in the C code, and I think there is still some cleanup code I haven't quite handled quite right. That said - I would welcome some comments/suggestions on this thus far, to make sure I'm not going off in a direction contrary to where you think I should be. examples/domain-events/events-python/event-test.py | 187 ++++++++ python/generator.py | 8 python/libvir.c | 454 +++++++++++++++++++++ python/libvir.py | 20 python/libvirt_wrap.h | 27 + python/types.c | 48 ++ 6 files changed, 740 insertions(+), 4 deletions(-)

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[libvirt] PATCH: Move domain event helpers out of internal.h/libvirt.c
by Daniel P. Berrange 29 Oct '08

29 Oct '08

There are a bunch of helper functions relating to domain events, which are only used internally by hypervisor drivers. Following the principle that libvirt.c should only contain functions exported in the API, and internal.h should not define any function signatures, these helpers need to move. So I'm inventing a domain_events.c, and domain_events.h file to contain the domain events helper code, in much same way as domain_conf.c and domain_conf.h contain the domain XML helper code. Again no functional change here. With this patch applied, the cleanup of internal.h is basically complete - at least more than good enough for now. It'd be nice to move the struct definitions of virDomainPtr, etc elsewhere, perhaps to src/libvirt.h because they're public API, but not exported publically. b/src/domain_event.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++++++ b/src/domain_event.h | 83 ++++++++++++++++++ qemud/event.c | 8 - qemud/event.h | 7 + src/Makefile.am | 1 src/internal.h | 73 --------------- src/libvirt.c | 201 ------------------------------------------- src/qemu_conf.h | 1 src/remote_internal.c | 1 9 files changed, 326 insertions(+), 278 deletions(-) Daniel diff -r 0325a25d1762 qemud/event.c --- a/qemud/event.c Wed Oct 29 11:48:08 2008 +0000 +++ b/qemud/event.c Wed Oct 29 12:03:29 2008 +0000 @@ -489,7 +489,7 @@ } int -__virEventHandleTypeToPollEvent(virEventHandleType events) +virEventHandleTypeToPollEvent(int events) { int ret = 0; if(events & VIR_EVENT_HANDLE_READABLE) @@ -503,10 +503,10 @@ return ret; } -virEventHandleType -__virPollEventToEventHandleType(int events) +int +virPollEventToEventHandleType(int events) { - virEventHandleType ret = 0; + int ret = 0; if(events & POLLIN) ret |= VIR_EVENT_HANDLE_READABLE; if(events & POLLOUT) diff -r 0325a25d1762 qemud/event.h --- a/qemud/event.h Wed Oct 29 11:48:08 2008 +0000 +++ b/qemud/event.h Wed Oct 29 12:03:29 2008 +0000 @@ -105,4 +105,11 @@ */ int virEventRunOnce(void); +int +virEventHandleTypeToPollEvent(int events); +int +virPollEventToEventHandleType(int events); + + + #endif /* __VIRTD_EVENT_H__ */ diff -r 0325a25d1762 src/Makefile.am --- a/src/Makefile.am Wed Oct 29 11:48:08 2008 +0000 +++ b/src/Makefile.am Wed Oct 29 12:03:29 2008 +0000 @@ -150,6 +150,7 @@ hash.c hash.h \ internal.h \ libvirt.c \ + domain_event.c domain_event.h \ $(GENERIC_LIB_SOURCES) \ $(DOMAIN_CONF_SOURCES) \ $(NETWORK_CONF_SOURCES) \ diff -r 0325a25d1762 src/domain_event.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/domain_event.c Wed Oct 29 12:03:29 2008 +0000 @@ -0,0 +1,229 @@ +/* + * domain_event.c: domain event queue processing helpers + * + * Copyright (C) 2008 VirtualIron + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Ben Guthro + */ + +#include <config.h> + +#include "domain_event.h" +#include "libvirt.h" +#include "memory.h" + + +/** + * virDomainEventCallbackListFree: + * @list: event callback list head + * + * Free the memory in the domain event callback list + */ +void +virDomainEventCallbackListFree(virDomainEventCallbackListPtr list) +{ + int i; + for (i=0; i<list->count; i++) { + VIR_FREE(list->callbacks[i]); + } + VIR_FREE(list); +} +/** + * virDomainEventCallbackListRemove: + * @conn: pointer to the connection + * @cbList: the list + * @callback: the callback to remove + * + * Internal function to remove a callback from a virDomainEventCallbackListPtr + */ +int +virDomainEventCallbackListRemove(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback) +{ + int i; + for (i = 0 ; i < cbList->count ; i++) { + if(cbList->callbacks[i]->cb == callback && + cbList->callbacks[i]->conn == conn) { + virUnrefConnect(cbList->callbacks[i]->conn); + VIR_FREE(cbList->callbacks[i]); + + if (i < (cbList->count - 1)) + memmove(cbList->callbacks + i, + cbList->callbacks + i + 1, + sizeof(*(cbList->callbacks)) * + (cbList->count - (i + 1))); + + if (VIR_REALLOC_N(cbList->callbacks, + cbList->count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + cbList->count--; + + return 0; + } + } + return -1; +} + +/** + * virDomainEventCallbackListAdd: + * @conn: pointer to the connection + * @cbList: the list + * @callback: the callback to add + * @opaque: opaque data tio pass to callback + * + * Internal function to add a callback from a virDomainEventCallbackListPtr + */ +int +virDomainEventCallbackListAdd(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback, + void *opaque) +{ + virDomainEventCallbackPtr event; + int n; + + /* Check incoming */ + if ( !cbList ) { + return -1; + } + + /* check if we already have this callback on our list */ + for (n=0; n < cbList->count; n++) { + if(cbList->callbacks[n]->cb == callback && + conn == cbList->callbacks[n]->conn) { + DEBUG0("WARNING: Callback already tracked"); + return -1; + } + } + /* Allocate new event */ + if (VIR_ALLOC(event) < 0) { + DEBUG0("Error allocating event"); + return -1; + } + event->conn = conn; + event->cb = callback; + event->opaque = opaque; + + /* Make space on list */ + n = cbList->count; + if (VIR_REALLOC_N(cbList->callbacks, n + 1) < 0) { + DEBUG0("Error reallocating list"); + VIR_FREE(event); + return -1; + } + + event->conn->refs++; + + cbList->callbacks[n] = event; + cbList->count++; + return 0; +} + +/** + * virDomainEventQueueFree: + * @queue: pointer to the queue + * + * Free the memory in the queue. We process this like a list here + */ +void +virDomainEventQueueFree(virDomainEventQueuePtr queue) +{ + int i; + for ( i=0 ; i<queue->count ; i++ ) { + VIR_FREE(queue->events[i]); + } + VIR_FREE(queue); +} + +/** + * virDomainEventCallbackQueuePop: + * @evtQueue: the queue of events + * + * Internal function to pop off, and return the front of the queue + * NOTE: The caller is responsible for freeing the returned object + * + * Returns: virDomainEventPtr on success NULL on failure. + */ +virDomainEventPtr +virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue) +{ + virDomainEventPtr ret; + + if(!evtQueue || evtQueue->count == 0 ) + return NULL; + + ret = evtQueue->events[0]; + + memmove(evtQueue->events, + evtQueue->events + 1, + sizeof(*(evtQueue->events)) * + (evtQueue->count - 1)); + + if (VIR_REALLOC_N(evtQueue->events, + evtQueue->count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + evtQueue->count--; + + return ret; +} + +/** + * virDomainEventCallbackQueuePush: + * @evtQueue: the dom event queue + * @dom: the domain to add + * @event: the event to add + * + * Internal function to push onto the back of an virDomainEventQueue + * + * Returns: 0 on success, -1 on failure + */ +int +virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, + virDomainPtr dom, + virDomainEventType event) +{ + virDomainEventPtr domEvent; + + /* Check incoming */ + if ( !evtQueue ) { + return -1; + } + + /* Allocate new event */ + if (VIR_ALLOC(domEvent) < 0) { + DEBUG0("Error allocating event"); + return -1; + } + domEvent->dom = dom; + domEvent->event = event; + + /* Make space on queue */ + if (VIR_REALLOC_N(evtQueue->events, + evtQueue->count + 1) < 0) { + DEBUG0("Error reallocating queue"); + VIR_FREE(domEvent); + return -1; + } + + evtQueue->events[evtQueue->count] = domEvent; + evtQueue->count++; + return 0; +} + diff -r 0325a25d1762 src/domain_event.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/domain_event.h Wed Oct 29 12:03:29 2008 +0000 @@ -0,0 +1,83 @@ +/* + * domain_event.h: domain event queue processing helpers + * + * Copyright (C) 2008 VirtualIron + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Ben Guthro + */ + +#include "internal.h" + + +#ifndef __DOMAIN_EVENT_H__ +#define __DOMAIN_EVENT_H__ + +struct _virDomainEventCallback { + virConnectPtr conn; + virConnectDomainEventCallback cb; + void *opaque; +}; +typedef struct _virDomainEventCallback virDomainEventCallback; +typedef virDomainEventCallback *virDomainEventCallbackPtr; + +struct _virDomainEventCallbackList { + unsigned int count; + virDomainEventCallbackPtr *callbacks; +}; +typedef struct _virDomainEventCallbackList virDomainEventCallbackList; +typedef virDomainEventCallbackList *virDomainEventCallbackListPtr; + +void virDomainEventCallbackListFree(virDomainEventCallbackListPtr list); + +int virDomainEventCallbackListAdd(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback, + void *opaque); + +int virDomainEventCallbackListRemove(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback); + +/** + * Dispatching domain events that come in while + * in a call / response rpc + */ +struct _virDomainEvent { + virDomainPtr dom; + virDomainEventType event; +}; +typedef struct _virDomainEvent virDomainEvent; +typedef virDomainEvent *virDomainEventPtr; + +struct _virDomainEventQueue { + unsigned int count; + virDomainEventPtr *events; +}; +typedef struct _virDomainEventQueue virDomainEventQueue; +typedef virDomainEventQueue *virDomainEventQueuePtr; + +int virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, + virDomainPtr dom, + virDomainEventType event); + +virDomainEventPtr +virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue); + +void virDomainEventQueueFree(virDomainEventQueuePtr queue); + + +#endif diff -r 0325a25d1762 src/internal.h --- a/src/internal.h Wed Oct 29 11:48:08 2008 +0000 +++ b/src/internal.h Wed Oct 29 12:03:29 2008 +0000 @@ -294,77 +294,4 @@ char key[PATH_MAX]; /* unique key for storage vol */ }; - -/** - * Domain Event Notification - */ - -struct _virDomainEventCallback { - virConnectPtr conn; - virConnectDomainEventCallback cb; - void *opaque; -}; -typedef struct _virDomainEventCallback virDomainEventCallback; -typedef virDomainEventCallback *virDomainEventCallbackPtr; - -struct _virDomainEventCallbackList { - unsigned int count; - virDomainEventCallbackPtr *callbacks; -}; -typedef struct _virDomainEventCallbackList virDomainEventCallbackList; -typedef virDomainEventCallbackList *virDomainEventCallbackListPtr; - -void __virDomainEventCallbackListFree(virDomainEventCallbackListPtr list); -#define virDomainEventCallbackListFree(x) __virDomainEventCallbackListFree(x) - -int __virDomainEventCallbackListAdd(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback, - void *opaque); -#define virDomainEventCallbackListAdd(a,b,c,d) \ - __virDomainEventCallbackListAdd((a),(b),(c),(d)) - -int __virDomainEventCallbackListRemove(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback); -#define virDomainEventCallbackListRemove(a,b,c) \ - __virDomainEventCallbackListRemove((a),(b),(c)) - -int __virEventHandleTypeToPollEvent(virEventHandleType events); -#define virEventHandleTypeToPollEvent(x) __virEventHandleTypeToPollEvent(x) - -virEventHandleType __virPollEventToEventHandleType(int events); -#define virPollEventToEventHandleType(x) __virPollEventToEventHandleType(x) - -/** - * Dispatching domain events that come in while - * in a call / response rpc - */ -struct _virDomainEvent { - virDomainPtr dom; - virDomainEventType event; -}; -typedef struct _virDomainEvent virDomainEvent; -typedef virDomainEvent *virDomainEventPtr; - -struct _virDomainEventQueue { - unsigned int count; - virDomainEventPtr *events; -}; -typedef struct _virDomainEventQueue virDomainEventQueue; -typedef virDomainEventQueue *virDomainEventQueuePtr; - -int __virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, - virDomainPtr dom, - virDomainEventType event); -#define virDomainEventCallbackQueuePush(a,b,c) \ - __virDomainEventCallbackQueuePush((a),(b),(c)) - -virDomainEventPtr -__virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue); -#define virDomainEventCallbackQueuePop(x) __virDomainEventCallbackQueuePop(x) - -void __virDomainEventQueueFree(virDomainEventQueuePtr queue); -#define virDomainEventQueueFree(x) __virDomainEventQueueFree(x) - #endif /* __VIR_INTERNAL_H__ */ diff -r 0325a25d1762 src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:48:08 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 12:03:29 2008 +0000 @@ -5371,207 +5371,6 @@ return -1; } -/** - * __virDomainEventCallbackListFree: - * @list: event callback list head - * - * Free the memory in the domain event callback list - */ -void -__virDomainEventCallbackListFree(virDomainEventCallbackListPtr list) -{ - int i; - for (i=0; i<list->count; i++) { - VIR_FREE(list->callbacks[i]); - } - VIR_FREE(list); -} -/** - * __virDomainEventCallbackListRemove: - * @conn: pointer to the connection - * @cbList: the list - * @callback: the callback to remove - * - * Internal function to remove a callback from a virDomainEventCallbackListPtr - */ -int -__virDomainEventCallbackListRemove(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback) -{ - int i; - for (i = 0 ; i < cbList->count ; i++) { - if(cbList->callbacks[i]->cb == callback && - cbList->callbacks[i]->conn == conn) { - virUnrefConnect(cbList->callbacks[i]->conn); - VIR_FREE(cbList->callbacks[i]); - - if (i < (cbList->count - 1)) - memmove(cbList->callbacks + i, - cbList->callbacks + i + 1, - sizeof(*(cbList->callbacks)) * - (cbList->count - (i + 1))); - - if (VIR_REALLOC_N(cbList->callbacks, - cbList->count - 1) < 0) { - ; /* Failure to reduce memory allocation isn't fatal */ - } - cbList->count--; - - return 0; - } - } - return -1; -} - -/** - * __virDomainEventCallbackListAdd: - * @conn: pointer to the connection - * @cbList: the list - * @callback: the callback to add - * @opaque: opaque data tio pass to callback - * - * Internal function to add a callback from a virDomainEventCallbackListPtr - */ -int -__virDomainEventCallbackListAdd(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback, - void *opaque) -{ - virDomainEventCallbackPtr event; - int n; - - /* Check incoming */ - if ( !cbList ) { - return -1; - } - - /* check if we already have this callback on our list */ - for (n=0; n < cbList->count; n++) { - if(cbList->callbacks[n]->cb == callback && - conn == cbList->callbacks[n]->conn) { - DEBUG0("WARNING: Callback already tracked"); - return -1; - } - } - /* Allocate new event */ - if (VIR_ALLOC(event) < 0) { - DEBUG0("Error allocating event"); - return -1; - } - event->conn = conn; - event->cb = callback; - event->opaque = opaque; - - /* Make space on list */ - n = cbList->count; - if (VIR_REALLOC_N(cbList->callbacks, n + 1) < 0) { - DEBUG0("Error reallocating list"); - VIR_FREE(event); - return -1; - } - - event->conn->refs++; - - cbList->callbacks[n] = event; - cbList->count++; - return 0; -} - -/** - * __virDomainEventQueueFree: - * @queue: pointer to the queue - * - * Free the memory in the queue. We process this like a list here - */ -void -__virDomainEventQueueFree(virDomainEventQueuePtr queue) -{ - int i; - for ( i=0 ; i<queue->count ; i++ ) { - VIR_FREE(queue->events[i]); - } - VIR_FREE(queue); -} - -/** - * __virDomainEventCallbackQueuePop: - * @evtQueue: the queue of events - * - * Internal function to pop off, and return the front of the queue - * NOTE: The caller is responsible for freeing the returned object - * - * Returns: virDomainEventPtr on success NULL on failure. - */ -virDomainEventPtr -__virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue) -{ - virDomainEventPtr ret; - - if(!evtQueue || evtQueue->count == 0 ) - return NULL; - - ret = evtQueue->events[0]; - - memmove(evtQueue->events, - evtQueue->events + 1, - sizeof(*(evtQueue->events)) * - (evtQueue->count - 1)); - - if (VIR_REALLOC_N(evtQueue->events, - evtQueue->count - 1) < 0) { - ; /* Failure to reduce memory allocation isn't fatal */ - } - evtQueue->count--; - - return ret; -} - -/** - * __virDomainEventCallbackQueuePush: - * @evtQueue: the dom event queue - * @dom: the domain to add - * @event: the event to add - * - * Internal function to push onto the back of an virDomainEventQueue - * - * Returns: 0 on success, -1 on failure - */ -int -__virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, - virDomainPtr dom, - virDomainEventType event) -{ - virDomainEventPtr domEvent; - - /* Check incoming */ - if ( !evtQueue ) { - return -1; - } - - /* Allocate new event */ - if (VIR_ALLOC(domEvent) < 0) { - DEBUG0("Error allocating event"); - return -1; - } - domEvent->dom = dom; - domEvent->event = event; - - /* Make space on queue */ - if (VIR_REALLOC_N(evtQueue->events, - evtQueue->count + 1) < 0) { - DEBUG0("Error reallocating queue"); - VIR_FREE(domEvent); - return -1; - } - - evtQueue->events[evtQueue->count] = domEvent; - evtQueue->count++; - return 0; -} - - /************************************************************************ * * diff -r 0325a25d1762 src/qemu_conf.h --- a/src/qemu_conf.h Wed Oct 29 11:48:08 2008 +0000 +++ b/src/qemu_conf.h Wed Oct 29 12:03:29 2008 +0000 @@ -31,6 +31,7 @@ #include "capabilities.h" #include "network_conf.h" #include "domain_conf.h" +#include "domain_event.h" #define qemudDebug(fmt, ...) do {} while(0) diff -r 0325a25d1762 src/remote_internal.c --- a/src/remote_internal.c Wed Oct 29 11:48:08 2008 +0000 +++ b/src/remote_internal.c Wed Oct 29 12:03:29 2008 +0000 @@ -75,6 +75,7 @@ #include "virterror.h" #include "libvirt.h" +#include "domain_event.h" #include "driver.h" #include "buf.h" #include "qparams.h" -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] PATCH Move misc functions out of hash.c/internal.h into libvirt.c
by Daniel P. Berrange 29 Oct '08

29 Oct '08

The hash.c file contains a nice generic implementation of hash tables, and then adds a bunch of code for creating/deleting virDomainPtr, virConnectPtr, virNetworkPtr and virStoragePoolPtr objects which is totally unrelated to hash tables. The internal.h file also contains function signatures for a bunch of APIs which are exported in the libvirt.so, but not part of the official public API in libvirt/libvirt.h. Their impl is mostly in libvirt.c, along with the aforementioned stuff from hash.c To improve internal modularization / cross-file dependancies, this patch tries to isolate the impl of all exported functions in libvirt.c, and for those API which are part of the public API, place their declaration in the src/libvirt.h file. So, the src/libvirt.h file gets the following exported, but not public funtions, with the impl of the virGetXXX/virUnrefXXX moving out of hash.c and into libvirt.c to be alongside other impls of public APIs. virConnectPtr virGetConnect(void); int virUnrefConnect(virConnectPtr conn); virDomainPtr __virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid); int virUnrefDomain(virDomainPtr domain); virNetworkPtr __virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid); int virUnrefNetwork(virNetworkPtr network); virStoragePoolPtr __virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid); int virUnrefStoragePool(virStoragePoolPtr pool); virStorageVolPtr __virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const char *key); int virUnrefStorageVol(virStorageVolPtr vol); int __virStateInitialize(void); int __virStateCleanup(void); int __virStateReload(void); int __virStateActive(void); int __virStateSigDispatcher(siginfo_t *siginfo); int __virDrvSupportsFeature (virConnectPtr conn, int feature); int __virDomainMigratePrepare (virConnectPtr dconn, char **cookie, int *cookielen, const char *uri_in, char **uri_out, unsigned long flags, const char *dname, unsigned long bandwidth); int __virDomainMigratePerform (virDomainPtr domain, const char *cookie, int cookielen, const char *uri, unsigned long flags, const char *dname, unsigned long bandwidth); virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, const char *dname, const char *cookie, int cookielen, const char *uri, unsigned long flags); Finally, the files for internal hypervisor drivers need to include this new libvirt.h file. This is step 2 in cleaning up the definitions visible in internal.h As before, there should be no functional change in this patch, merely a bunch of code moving, and #include fixups b/src/libvirt.h | 98 ++++++ qemud/qemud.c | 2 qemud/remote.c | 2 src/hash.c | 726 ------------------------------------------------- src/internal.h | 52 --- src/libvirt.c | 728 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/lxc_driver.c | 1 src/network_driver.c | 1 src/openvz_driver.c | 1 src/proxy_internal.h | 3 src/qemu_driver.c | 1 src/remote_internal.c | 1 src/storage_driver.c | 1 src/test.c | 1 src/xen_internal.c | 1 src/xend_internal.c | 1 src/xm_internal.c | 1 src/xs_internal.c | 1 18 files changed, 842 insertions(+), 780 deletions(-) Daniel diff -r ef2d00e6bc78 qemud/qemud.c --- a/qemud/qemud.c Wed Oct 29 11:36:21 2008 +0000 +++ b/qemud/qemud.c Wed Oct 29 11:48:08 2008 +0000 @@ -49,7 +49,7 @@ #include <signal.h> #include <netdb.h> -#include "internal.h" +#include "libvirt.h" #include "qemud.h" #include "util.h" diff -r ef2d00e6bc78 qemud/remote.c --- a/qemud/remote.c Wed Oct 29 11:36:21 2008 +0000 +++ b/qemud/remote.c Wed Oct 29 11:48:08 2008 +0000 @@ -48,7 +48,7 @@ #include <polkit-dbus/polkit-dbus.h> #endif -#include "internal.h" +#include "libvirt.h" #include "qemud.h" #include "memory.h" diff -r ef2d00e6bc78 src/hash.c --- a/src/hash.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/hash.c Wed Oct 29 11:48:08 2008 +0000 @@ -25,6 +25,7 @@ #include <libxml/threads.h> #include "virterror.h" +#include "libvirt.h" #include "hash.h" #include "memory.h" @@ -594,728 +595,3 @@ return (NULL); } -/************************************************************************ - * * - * Domain and Connections allocations * - * * - ************************************************************************/ - -/** - * virDomainFreeName: - * @domain: a domain object - * - * Destroy the domain object, this is just used by the domain hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virDomainFreeName(virDomainPtr domain, const char *name ATTRIBUTE_UNUSED) -{ - return (virDomainFree(domain)); -} - -/** - * virNetworkFreeName: - * @network: a network object - * - * Destroy the network object, this is just used by the network hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virNetworkFreeName(virNetworkPtr network, const char *name ATTRIBUTE_UNUSED) -{ - return (virNetworkFree(network)); -} - -/** - * virStoragePoolFreeName: - * @pool: a pool object - * - * Destroy the pool object, this is just used by the pool hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virStoragePoolFreeName(virStoragePoolPtr pool, const char *name ATTRIBUTE_UNUSED) -{ - return (virStoragePoolFree(pool)); -} - -/** - * virStorageVolFreeName: - * @vol: a vol object - * - * Destroy the vol object, this is just used by the vol hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virStorageVolFreeName(virStorageVolPtr vol, const char *name ATTRIBUTE_UNUSED) -{ - return (virStorageVolFree(vol)); -} - -/** - * virGetConnect: - * - * Allocates a new hypervisor connection structure - * - * Returns a new pointer or NULL in case of error. - */ -virConnectPtr -virGetConnect(void) { - virConnectPtr ret; - - if (VIR_ALLOC(ret) < 0) { - virHashError(NULL, VIR_ERR_NO_MEMORY, "%s", _("allocating connection")); - goto failed; - } - ret->magic = VIR_CONNECT_MAGIC; - ret->driver = NULL; - ret->networkDriver = NULL; - ret->privateData = NULL; - ret->networkPrivateData = NULL; - ret->domains = virHashCreate(20); - if (ret->domains == NULL) - goto failed; - ret->networks = virHashCreate(20); - if (ret->networks == NULL) - goto failed; - ret->storagePools = virHashCreate(20); - if (ret->storagePools == NULL) - goto failed; - ret->storageVols = virHashCreate(20); - if (ret->storageVols == NULL) - goto failed; - - pthread_mutex_init(&ret->lock, NULL); - - ret->refs = 1; - return(ret); - -failed: - if (ret != NULL) { - if (ret->domains != NULL) - virHashFree(ret->domains, (virHashDeallocator) virDomainFreeName); - if (ret->networks != NULL) - virHashFree(ret->networks, (virHashDeallocator) virNetworkFreeName); - if (ret->storagePools != NULL) - virHashFree(ret->storagePools, (virHashDeallocator) virStoragePoolFreeName); - if (ret->storageVols != NULL) - virHashFree(ret->storageVols, (virHashDeallocator) virStorageVolFreeName); - - pthread_mutex_destroy(&ret->lock); - VIR_FREE(ret); - } - return(NULL); -} - -/** - * virReleaseConnect: - * @conn: the hypervisor connection to release - * - * Unconditionally release all memory associated with a connection. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The connection obj must not - * be used once this method returns. - */ -static void -virReleaseConnect(virConnectPtr conn) { - DEBUG("release connection %p %s", conn, conn->name); - if (conn->domains != NULL) - virHashFree(conn->domains, (virHashDeallocator) virDomainFreeName); - if (conn->networks != NULL) - virHashFree(conn->networks, (virHashDeallocator) virNetworkFreeName); - if (conn->storagePools != NULL) - virHashFree(conn->storagePools, (virHashDeallocator) virStoragePoolFreeName); - if (conn->storageVols != NULL) - virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName); - - virResetError(&conn->err); - if (virLastErr.conn == conn) - virLastErr.conn = NULL; - - VIR_FREE(conn->name); - - pthread_mutex_unlock(&conn->lock); - pthread_mutex_destroy(&conn->lock); - VIR_FREE(conn); -} - -/** - * virUnrefConnect: - * @conn: the hypervisor connection to unreference - * - * Unreference the connection. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefConnect(virConnectPtr conn) { - int refs; - - if ((!VIR_IS_CONNECT(conn))) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&conn->lock); - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - refs = conn->refs; - if (refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return (0); - } - pthread_mutex_unlock(&conn->lock); - return (refs); -} - -/** - * virGetDomain: - * @conn: the hypervisor connection - * @name: pointer to the domain name - * @uuid: pointer to the uuid - * - * Lookup if the domain is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virUnrefDomain() is needed to not leak data. - * - * Returns a pointer to the domain, or NULL in case of failure - */ -virDomainPtr -__virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) { - virDomainPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - /* TODO search by UUID first as they are better differenciators */ - - ret = (virDomainPtr) virHashLookup(conn->domains, name); - /* TODO check the UUID */ - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating domain")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating domain")); - goto error; - } - ret->magic = VIR_DOMAIN_MAGIC; - ret->conn = conn; - ret->id = -1; - if (uuid != NULL) - memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); - - if (virHashAddEntry(conn->domains, name, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add domain to connection hash table")); - goto error; - } - conn->refs++; - DEBUG("New hash entry %p", ret); - } else { - DEBUG("Existing hash entry %p: refs now %d", ret, ret->refs+1); - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - - error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret); - } - return(NULL); -} - -/** - * virReleaseDomain: - * @domain: the domain to release - * - * Unconditionally release all memory associated with a domain. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The domain obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseDomain(virDomainPtr domain) { - virConnectPtr conn = domain->conn; - DEBUG("release domain %p %s", domain, domain->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("domain missing from connection hash table")); - - if (conn->err.dom == domain) - conn->err.dom = NULL; - if (virLastErr.dom == domain) - virLastErr.dom = NULL; - domain->magic = -1; - domain->id = -1; - VIR_FREE(domain->name); - VIR_FREE(domain); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefDomain: - * @domain: the domain to unreference - * - * Unreference the domain. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefDomain(virDomainPtr domain) { - int refs; - - if (!VIR_IS_CONNECTED_DOMAIN(domain)) { - virHashError(domain->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&domain->conn->lock); - DEBUG("unref domain %p %s %d", domain, domain->name, domain->refs); - domain->refs--; - refs = domain->refs; - if (refs == 0) { - virReleaseDomain(domain); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&domain->conn->lock); - return (refs); -} - -/** - * virGetNetwork: - * @conn: the hypervisor connection - * @name: pointer to the network name - * @uuid: pointer to the uuid - * - * Lookup if the network is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virUnrefNetwork() is needed to not leak data. - * - * Returns a pointer to the network, or NULL in case of failure - */ -virNetworkPtr -__virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) { - virNetworkPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - /* TODO search by UUID first as they are better differenciators */ - - ret = (virNetworkPtr) virHashLookup(conn->networks, name); - /* TODO check the UUID */ - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating network")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating network")); - goto error; - } - ret->magic = VIR_NETWORK_MAGIC; - ret->conn = conn; - if (uuid != NULL) - memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); - - if (virHashAddEntry(conn->networks, name, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add network to connection hash table")); - goto error; - } - conn->refs++; - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - - error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret); - } - return(NULL); -} - -/** - * virReleaseNetwork: - * @network: the network to release - * - * Unconditionally release all memory associated with a network. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The network obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseNetwork(virNetworkPtr network) { - virConnectPtr conn = network->conn; - DEBUG("release network %p %s", network, network->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("network missing from connection hash table")); - - if (conn->err.net == network) - conn->err.net = NULL; - if (virLastErr.net == network) - virLastErr.net = NULL; - - network->magic = -1; - VIR_FREE(network->name); - VIR_FREE(network); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefNetwork: - * @network: the network to unreference - * - * Unreference the network. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefNetwork(virNetworkPtr network) { - int refs; - - if (!VIR_IS_CONNECTED_NETWORK(network)) { - virHashError(network->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&network->conn->lock); - DEBUG("unref network %p %s %d", network, network->name, network->refs); - network->refs--; - refs = network->refs; - if (refs == 0) { - virReleaseNetwork(network); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&network->conn->lock); - return (refs); -} - - -/** - * virGetStoragePool: - * @conn: the hypervisor connection - * @name: pointer to the storage pool name - * @uuid: pointer to the uuid - * - * Lookup if the storage pool is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virFreeStoragePool() is needed to not leak data. - * - * Returns a pointer to the network, or NULL in case of failure - */ -virStoragePoolPtr -__virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid) { - virStoragePoolPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - /* TODO search by UUID first as they are better differenciators */ - - ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, name); - /* TODO check the UUID */ - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage pool")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage pool")); - goto error; - } - ret->magic = VIR_STORAGE_POOL_MAGIC; - ret->conn = conn; - if (uuid != NULL) - memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); - - if (virHashAddEntry(conn->storagePools, name, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add storage pool to connection hash table")); - goto error; - } - conn->refs++; - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - -error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret); - } - return(NULL); -} - - -/** - * virReleaseStoragePool: - * @pool: the pool to release - * - * Unconditionally release all memory associated with a pool. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The pool obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseStoragePool(virStoragePoolPtr pool) { - virConnectPtr conn = pool->conn; - DEBUG("release pool %p %s", pool, pool->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("pool missing from connection hash table")); - - pool->magic = -1; - VIR_FREE(pool->name); - VIR_FREE(pool); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefStoragePool: - * @pool: the pool to unreference - * - * Unreference the pool. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefStoragePool(virStoragePoolPtr pool) { - int refs; - - if (!VIR_IS_CONNECTED_STORAGE_POOL(pool)) { - virHashError(pool->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&pool->conn->lock); - DEBUG("unref pool %p %s %d", pool, pool->name, pool->refs); - pool->refs--; - refs = pool->refs; - if (refs == 0) { - virReleaseStoragePool(pool); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&pool->conn->lock); - return (refs); -} - - -/** - * virGetStorageVol: - * @conn: the hypervisor connection - * @pool: pool owning the volume - * @name: pointer to the storage vol name - * @uuid: pointer to the uuid - * - * Lookup if the storage vol is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virFreeStorageVol() is needed to not leak data. - * - * Returns a pointer to the storage vol, or NULL in case of failure - */ -virStorageVolPtr -__virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const char *key) { - virStorageVolPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (key == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - ret = (virStorageVolPtr) virHashLookup(conn->storageVols, key); - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage vol")); - goto error; - } - ret->pool = strdup(pool); - if (ret->pool == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage vol")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage vol")); - goto error; - } - strncpy(ret->key, key, sizeof(ret->key)-1); - ret->key[sizeof(ret->key)-1] = '\0'; - ret->magic = VIR_STORAGE_VOL_MAGIC; - ret->conn = conn; - - if (virHashAddEntry(conn->storageVols, key, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add storage vol to connection hash table")); - goto error; - } - conn->refs++; - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - -error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret->pool); - VIR_FREE(ret); - } - return(NULL); -} - - -/** - * virReleaseStorageVol: - * @vol: the vol to release - * - * Unconditionally release all memory associated with a vol. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The vol obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseStorageVol(virStorageVolPtr vol) { - virConnectPtr conn = vol->conn; - DEBUG("release vol %p %s", vol, vol->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("vol missing from connection hash table")); - - vol->magic = -1; - VIR_FREE(vol->name); - VIR_FREE(vol->pool); - VIR_FREE(vol); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefStorageVol: - * @vol: the vol to unreference - * - * Unreference the vol. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefStorageVol(virStorageVolPtr vol) { - int refs; - - if (!VIR_IS_CONNECTED_STORAGE_VOL(vol)) { - virHashError(vol->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&vol->conn->lock); - DEBUG("unref vol %p %s %d", vol, vol->name, vol->refs); - vol->refs--; - refs = vol->refs; - if (refs == 0) { - virReleaseStorageVol(vol); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&vol->conn->lock); - return (refs); -} diff -r ef2d00e6bc78 src/internal.h --- a/src/internal.h Wed Oct 29 11:36:21 2008 +0000 +++ b/src/internal.h Wed Oct 29 11:48:08 2008 +0000 @@ -295,58 +295,6 @@ }; - -/************************************************************************ - * * - * API for domain/connections (de)allocations and lookups * - * * - ************************************************************************/ - -virConnectPtr virGetConnect (void); -int virUnrefConnect (virConnectPtr conn); -virDomainPtr __virGetDomain (virConnectPtr conn, - const char *name, - const unsigned char *uuid); -int virUnrefDomain (virDomainPtr domain); -virNetworkPtr __virGetNetwork (virConnectPtr conn, - const char *name, - const unsigned char *uuid); -int virUnrefNetwork (virNetworkPtr network); - -virStoragePoolPtr __virGetStoragePool (virConnectPtr conn, - const char *name, - const unsigned char *uuid); -int virUnrefStoragePool (virStoragePoolPtr pool); -virStorageVolPtr __virGetStorageVol (virConnectPtr conn, - const char *pool, - const char *name, - const char *key); -int virUnrefStorageVol (virStorageVolPtr vol); - -#define virGetDomain(c,n,u) __virGetDomain((c),(n),(u)) -#define virGetNetwork(c,n,u) __virGetNetwork((c),(n),(u)) -#define virGetStoragePool(c,n,u) __virGetStoragePool((c),(n),(u)) -#define virGetStorageVol(c,p,n,u) __virGetStorageVol((c),(p),(n),(u)) - -#ifdef WITH_LIBVIRTD -int __virStateInitialize(void); -int __virStateCleanup(void); -int __virStateReload(void); -int __virStateActive(void); -int __virStateSigDispatcher(siginfo_t *siginfo); -#define virStateInitialize() __virStateInitialize() -#define virStateCleanup() __virStateCleanup() -#define virStateReload() __virStateReload() -#define virStateActive() __virStateActive() -#define virStateSigDispatcher(s) __virStateSigDispatcher(s) -#endif - -int __virDrvSupportsFeature (virConnectPtr conn, int feature); - -int __virDomainMigratePrepare (virConnectPtr dconn, char **cookie, int *cookielen, const char *uri_in, char **uri_out, unsigned long flags, const char *dname, unsigned long bandwidth); -int __virDomainMigratePerform (virDomainPtr domain, const char *cookie, int cookielen, const char *uri, unsigned long flags, const char *dname, unsigned long bandwidth); -virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, const char *dname, const char *cookie, int cookielen, const char *uri, unsigned long flags); - /** * Domain Event Notification */ diff -r ef2d00e6bc78 src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 11:48:08 2008 +0000 @@ -32,6 +32,7 @@ #endif #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "uuid.h" @@ -5570,3 +5571,730 @@ return 0; } + + +/************************************************************************ + * * + * Domain and Connections allocations * + * * + ************************************************************************/ + +/** + * virDomainFreeName: + * @domain: a domain object + * + * Destroy the domain object, this is just used by the domain hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virDomainFreeName(virDomainPtr domain, const char *name ATTRIBUTE_UNUSED) +{ + return (virDomainFree(domain)); +} + +/** + * virNetworkFreeName: + * @network: a network object + * + * Destroy the network object, this is just used by the network hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virNetworkFreeName(virNetworkPtr network, const char *name ATTRIBUTE_UNUSED) +{ + return (virNetworkFree(network)); +} + +/** + * virStoragePoolFreeName: + * @pool: a pool object + * + * Destroy the pool object, this is just used by the pool hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virStoragePoolFreeName(virStoragePoolPtr pool, const char *name ATTRIBUTE_UNUSED) +{ + return (virStoragePoolFree(pool)); +} + +/** + * virStorageVolFreeName: + * @vol: a vol object + * + * Destroy the vol object, this is just used by the vol hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virStorageVolFreeName(virStorageVolPtr vol, const char *name ATTRIBUTE_UNUSED) +{ + return (virStorageVolFree(vol)); +} + +/** + * virGetConnect: + * + * Allocates a new hypervisor connection structure + * + * Returns a new pointer or NULL in case of error. + */ +virConnectPtr +virGetConnect(void) { + virConnectPtr ret; + + if (VIR_ALLOC(ret) < 0) { + virLibConnError(NULL, VIR_ERR_NO_MEMORY, _("allocating connection")); + goto failed; + } + ret->magic = VIR_CONNECT_MAGIC; + ret->driver = NULL; + ret->networkDriver = NULL; + ret->privateData = NULL; + ret->networkPrivateData = NULL; + ret->domains = virHashCreate(20); + if (ret->domains == NULL) + goto failed; + ret->networks = virHashCreate(20); + if (ret->networks == NULL) + goto failed; + ret->storagePools = virHashCreate(20); + if (ret->storagePools == NULL) + goto failed; + ret->storageVols = virHashCreate(20); + if (ret->storageVols == NULL) + goto failed; + + pthread_mutex_init(&ret->lock, NULL); + + ret->refs = 1; + return(ret); + +failed: + if (ret != NULL) { + if (ret->domains != NULL) + virHashFree(ret->domains, (virHashDeallocator) virDomainFreeName); + if (ret->networks != NULL) + virHashFree(ret->networks, (virHashDeallocator) virNetworkFreeName); + if (ret->storagePools != NULL) + virHashFree(ret->storagePools, (virHashDeallocator) virStoragePoolFreeName); + if (ret->storageVols != NULL) + virHashFree(ret->storageVols, (virHashDeallocator) virStorageVolFreeName); + + pthread_mutex_destroy(&ret->lock); + VIR_FREE(ret); + } + return(NULL); +} + +/** + * virReleaseConnect: + * @conn: the hypervisor connection to release + * + * Unconditionally release all memory associated with a connection. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The connection obj must not + * be used once this method returns. + */ +static void +virReleaseConnect(virConnectPtr conn) { + DEBUG("release connection %p %s", conn, conn->name); + if (conn->domains != NULL) + virHashFree(conn->domains, (virHashDeallocator) virDomainFreeName); + if (conn->networks != NULL) + virHashFree(conn->networks, (virHashDeallocator) virNetworkFreeName); + if (conn->storagePools != NULL) + virHashFree(conn->storagePools, (virHashDeallocator) virStoragePoolFreeName); + if (conn->storageVols != NULL) + virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName); + + virResetError(&conn->err); + if (virLastErr.conn == conn) + virLastErr.conn = NULL; + + VIR_FREE(conn->name); + + pthread_mutex_unlock(&conn->lock); + pthread_mutex_destroy(&conn->lock); + VIR_FREE(conn); +} + +/** + * virUnrefConnect: + * @conn: the hypervisor connection to unreference + * + * Unreference the connection. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefConnect(virConnectPtr conn) { + int refs; + + if ((!VIR_IS_CONNECT(conn))) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&conn->lock); + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + refs = conn->refs; + if (refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return (0); + } + pthread_mutex_unlock(&conn->lock); + return (refs); +} + +/** + * virGetDomain: + * @conn: the hypervisor connection + * @name: pointer to the domain name + * @uuid: pointer to the uuid + * + * Lookup if the domain is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virUnrefDomain() is needed to not leak data. + * + * Returns a pointer to the domain, or NULL in case of failure + */ +virDomainPtr +__virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) { + virDomainPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + /* TODO search by UUID first as they are better differenciators */ + + ret = (virDomainPtr) virHashLookup(conn->domains, name); + /* TODO check the UUID */ + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating domain")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating domain")); + goto error; + } + ret->magic = VIR_DOMAIN_MAGIC; + ret->conn = conn; + ret->id = -1; + if (uuid != NULL) + memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); + + if (virHashAddEntry(conn->domains, name, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add domain to connection hash table")); + goto error; + } + conn->refs++; + DEBUG("New hash entry %p", ret); + } else { + DEBUG("Existing hash entry %p: refs now %d", ret, ret->refs+1); + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + + error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret); + } + return(NULL); +} + +/** + * virReleaseDomain: + * @domain: the domain to release + * + * Unconditionally release all memory associated with a domain. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The domain obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseDomain(virDomainPtr domain) { + virConnectPtr conn = domain->conn; + DEBUG("release domain %p %s", domain, domain->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("domain missing from connection hash table")); + + if (conn->err.dom == domain) + conn->err.dom = NULL; + if (virLastErr.dom == domain) + virLastErr.dom = NULL; + domain->magic = -1; + domain->id = -1; + VIR_FREE(domain->name); + VIR_FREE(domain); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefDomain: + * @domain: the domain to unreference + * + * Unreference the domain. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefDomain(virDomainPtr domain) { + int refs; + + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { + virLibConnError(domain->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&domain->conn->lock); + DEBUG("unref domain %p %s %d", domain, domain->name, domain->refs); + domain->refs--; + refs = domain->refs; + if (refs == 0) { + virReleaseDomain(domain); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&domain->conn->lock); + return (refs); +} + +/** + * virGetNetwork: + * @conn: the hypervisor connection + * @name: pointer to the network name + * @uuid: pointer to the uuid + * + * Lookup if the network is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virUnrefNetwork() is needed to not leak data. + * + * Returns a pointer to the network, or NULL in case of failure + */ +virNetworkPtr +__virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) { + virNetworkPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + /* TODO search by UUID first as they are better differenciators */ + + ret = (virNetworkPtr) virHashLookup(conn->networks, name); + /* TODO check the UUID */ + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating network")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating network")); + goto error; + } + ret->magic = VIR_NETWORK_MAGIC; + ret->conn = conn; + if (uuid != NULL) + memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); + + if (virHashAddEntry(conn->networks, name, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add network to connection hash table")); + goto error; + } + conn->refs++; + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + + error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret); + } + return(NULL); +} + +/** + * virReleaseNetwork: + * @network: the network to release + * + * Unconditionally release all memory associated with a network. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The network obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseNetwork(virNetworkPtr network) { + virConnectPtr conn = network->conn; + DEBUG("release network %p %s", network, network->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("network missing from connection hash table")); + + if (conn->err.net == network) + conn->err.net = NULL; + if (virLastErr.net == network) + virLastErr.net = NULL; + + network->magic = -1; + VIR_FREE(network->name); + VIR_FREE(network); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefNetwork: + * @network: the network to unreference + * + * Unreference the network. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefNetwork(virNetworkPtr network) { + int refs; + + if (!VIR_IS_CONNECTED_NETWORK(network)) { + virLibConnError(network->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&network->conn->lock); + DEBUG("unref network %p %s %d", network, network->name, network->refs); + network->refs--; + refs = network->refs; + if (refs == 0) { + virReleaseNetwork(network); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&network->conn->lock); + return (refs); +} + + +/** + * virGetStoragePool: + * @conn: the hypervisor connection + * @name: pointer to the storage pool name + * @uuid: pointer to the uuid + * + * Lookup if the storage pool is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virFreeStoragePool() is needed to not leak data. + * + * Returns a pointer to the network, or NULL in case of failure + */ +virStoragePoolPtr +__virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid) { + virStoragePoolPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + /* TODO search by UUID first as they are better differenciators */ + + ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, name); + /* TODO check the UUID */ + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage pool")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage pool")); + goto error; + } + ret->magic = VIR_STORAGE_POOL_MAGIC; + ret->conn = conn; + if (uuid != NULL) + memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); + + if (virHashAddEntry(conn->storagePools, name, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add storage pool to connection hash table")); + goto error; + } + conn->refs++; + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + +error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret); + } + return(NULL); +} + + +/** + * virReleaseStoragePool: + * @pool: the pool to release + * + * Unconditionally release all memory associated with a pool. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The pool obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseStoragePool(virStoragePoolPtr pool) { + virConnectPtr conn = pool->conn; + DEBUG("release pool %p %s", pool, pool->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("pool missing from connection hash table")); + + pool->magic = -1; + VIR_FREE(pool->name); + VIR_FREE(pool); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefStoragePool: + * @pool: the pool to unreference + * + * Unreference the pool. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefStoragePool(virStoragePoolPtr pool) { + int refs; + + if (!VIR_IS_CONNECTED_STORAGE_POOL(pool)) { + virLibConnError(pool->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&pool->conn->lock); + DEBUG("unref pool %p %s %d", pool, pool->name, pool->refs); + pool->refs--; + refs = pool->refs; + if (refs == 0) { + virReleaseStoragePool(pool); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&pool->conn->lock); + return (refs); +} + + +/** + * virGetStorageVol: + * @conn: the hypervisor connection + * @pool: pool owning the volume + * @name: pointer to the storage vol name + * @uuid: pointer to the uuid + * + * Lookup if the storage vol is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virFreeStorageVol() is needed to not leak data. + * + * Returns a pointer to the storage vol, or NULL in case of failure + */ +virStorageVolPtr +__virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const char *key) { + virStorageVolPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (key == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + ret = (virStorageVolPtr) virHashLookup(conn->storageVols, key); + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage vol")); + goto error; + } + ret->pool = strdup(pool); + if (ret->pool == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage vol")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage vol")); + goto error; + } + strncpy(ret->key, key, sizeof(ret->key)-1); + ret->key[sizeof(ret->key)-1] = '\0'; + ret->magic = VIR_STORAGE_VOL_MAGIC; + ret->conn = conn; + + if (virHashAddEntry(conn->storageVols, key, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add storage vol to connection hash table")); + goto error; + } + conn->refs++; + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + +error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret->pool); + VIR_FREE(ret); + } + return(NULL); +} + + +/** + * virReleaseStorageVol: + * @vol: the vol to release + * + * Unconditionally release all memory associated with a vol. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The vol obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseStorageVol(virStorageVolPtr vol) { + virConnectPtr conn = vol->conn; + DEBUG("release vol %p %s", vol, vol->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("vol missing from connection hash table")); + + vol->magic = -1; + VIR_FREE(vol->name); + VIR_FREE(vol->pool); + VIR_FREE(vol); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefStorageVol: + * @vol: the vol to unreference + * + * Unreference the vol. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefStorageVol(virStorageVolPtr vol) { + int refs; + + if (!VIR_IS_CONNECTED_STORAGE_VOL(vol)) { + virLibConnError(vol->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&vol->conn->lock); + DEBUG("unref vol %p %s %d", vol, vol->name, vol->refs); + vol->refs--; + refs = vol->refs; + if (refs == 0) { + virReleaseStorageVol(vol); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&vol->conn->lock); + return (refs); +} diff -r ef2d00e6bc78 src/libvirt.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/libvirt.h Wed Oct 29 11:48:08 2008 +0000 @@ -0,0 +1,98 @@ +/* + * libvirt.h: publically exported APIs, not for public use + * + * Copyright (C) 2006-2008 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __LIBVIRT_H_ +#define __LIBVIRT_H_ + +#include "internal.h" + + +/************************************************************************ + * * + * API for domain/connections (de)allocations and lookups * + * * + ************************************************************************/ + +virConnectPtr virGetConnect(void); +int virUnrefConnect(virConnectPtr conn); +virDomainPtr __virGetDomain(virConnectPtr conn, + const char *name, + const unsigned char *uuid); +int virUnrefDomain(virDomainPtr domain); +virNetworkPtr __virGetNetwork(virConnectPtr conn, + const char *name, + const unsigned char *uuid); +int virUnrefNetwork(virNetworkPtr network); + +virStoragePoolPtr __virGetStoragePool(virConnectPtr conn, + const char *name, + const unsigned char *uuid); +int virUnrefStoragePool(virStoragePoolPtr pool); +virStorageVolPtr __virGetStorageVol(virConnectPtr conn, + const char *pool, + const char *name, + const char *key); +int virUnrefStorageVol(virStorageVolPtr vol); + +#define virGetDomain(c,n,u) __virGetDomain((c),(n),(u)) +#define virGetNetwork(c,n,u) __virGetNetwork((c),(n),(u)) +#define virGetStoragePool(c,n,u) __virGetStoragePool((c),(n),(u)) +#define virGetStorageVol(c,p,n,u) __virGetStorageVol((c),(p),(n),(u)) + +#ifdef WITH_LIBVIRTD +int __virStateInitialize(void); +int __virStateCleanup(void); +int __virStateReload(void); +int __virStateActive(void); +int __virStateSigDispatcher(siginfo_t *siginfo); +#define virStateInitialize() __virStateInitialize() +#define virStateCleanup() __virStateCleanup() +#define virStateReload() __virStateReload() +#define virStateActive() __virStateActive() +#define virStateSigDispatcher(s) __virStateSigDispatcher(s) +#endif + +int __virDrvSupportsFeature (virConnectPtr conn, int feature); + +int __virDomainMigratePrepare (virConnectPtr dconn, + char **cookie, + int *cookielen, + const char *uri_in, + char **uri_out, + unsigned long flags, + const char *dname, + unsigned long bandwidth); +int __virDomainMigratePerform (virDomainPtr domain, + const char *cookie, + int cookielen, + const char *uri, + unsigned long flags, + const char *dname, + unsigned long bandwidth); +virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, + const char *dname, + const char *cookie, + int cookielen, + const char *uri, + unsigned long flags); + + +#endif diff -r ef2d00e6bc78 src/lxc_driver.c --- a/src/lxc_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/lxc_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -36,6 +36,7 @@ #include <wait.h> #include "virterror.h" +#include "libvirt.h" #include "lxc_conf.h" #include "lxc_container.h" #include "lxc_driver.h" diff -r ef2d00e6bc78 src/network_driver.c --- a/src/network_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/network_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -45,6 +45,7 @@ #include <sys/ioctl.h> #include "virterror.h" +#include "libvirt.h" #include "network_driver.h" #include "network_conf.h" #include "driver.h" diff -r ef2d00e6bc78 src/openvz_driver.c --- a/src/openvz_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/openvz_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -48,6 +48,7 @@ #include <sys/wait.h> #include "virterror.h" +#include "libvirt.h" #include "openvz_driver.h" #include "event.h" #include "buf.h" diff -r ef2d00e6bc78 src/proxy_internal.h --- a/src/proxy_internal.h Wed Oct 29 11:36:21 2008 +0000 +++ b/src/proxy_internal.h Wed Oct 29 11:48:08 2008 +0000 @@ -12,7 +12,8 @@ #ifndef __LIBVIR_PROXY_H__ #define __LIBVIR_PROXY_H__ -#include "libvirt/libvirt.h" +#include "internal.h" +#include "libvirt.h" #define PROXY_SOCKET_PATH "/tmp/livirt_proxy_conn" #define PROXY_PROTO_VERSION 1 diff -r ef2d00e6bc78 src/qemu_driver.c --- a/src/qemu_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/qemu_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -53,6 +53,7 @@ #endif #include "virterror.h" +#include "libvirt.h" #include "qemu_driver.h" #include "qemu_conf.h" #include "c-ctype.h" diff -r ef2d00e6bc78 src/remote_internal.c --- a/src/remote_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/remote_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -74,6 +74,7 @@ #endif #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "buf.h" #include "qparams.h" diff -r ef2d00e6bc78 src/storage_driver.c --- a/src/storage_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/storage_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -33,6 +33,7 @@ #include <string.h> #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "util.h" #include "storage_driver.h" diff -r ef2d00e6bc78 src/test.c --- a/src/test.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/test.c Wed Oct 29 11:48:08 2008 +0000 @@ -32,6 +32,7 @@ #include "virterror.h" +#include "libvirt.h" #include "test.h" #include "buf.h" #include "util.h" diff -r ef2d00e6bc78 src/xen_internal.c --- a/src/xen_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xen_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -41,6 +41,7 @@ #include <xen/sched.h> #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "util.h" #include "xen_unified.h" diff -r ef2d00e6bc78 src/xend_internal.c --- a/src/xend_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xend_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -33,6 +33,7 @@ #include <errno.h> #include "virterror.h" +#include "libvirt.h" #include "xend_internal.h" #include "driver.h" #include "util.h" diff -r ef2d00e6bc78 src/xm_internal.c --- a/src/xm_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xm_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -36,6 +36,7 @@ #include <xen/dom0_ops.h> #include "virterror.h" +#include "libvirt.h" #include "xm_internal.h" #include "xen_unified.h" #include "xend_internal.h" diff -r ef2d00e6bc78 src/xs_internal.c --- a/src/xs_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xs_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -27,6 +27,7 @@ #include <xs.h> #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "xen_unified.h" #include "xs_internal.h" -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 3

[libvirt] PATCH: Remove virStringList & improve virStoragePoolSourceList
by Daniel P. Berrange 29 Oct '08

29 Oct '08

Chris' recent patch removed use of the virStringList for the LVM discovery, but it was still used in the NFS discovery code. I figured we might as well make NFS discovery use virStoragePoolSourceList() too. This require a few changes: - Include pool type in virStoragePoolSourceList so XML formatter knows what type of source information is available - Factor out code to format a single virStoragePoolSourcePtr object into a virStoragePoolSourceFormat method - Make virStoragePoolDefFormat & virStoragePoolListFormat both call this common method - Make LVM discovery code set the pool type in source list - Switch NFS discovery to use virStoragePoolSourceList This also has benfit of giving proper indentation in the XML # ./virsh find-storage-pool-sources-as logical <sources> <source> <device path='/dev/sda2'/> <name>HostVG</name> <format type='lvm2'/> </source> </sources> # ./virsh find-storage-pool-sources-as --host aubergine.redhat.com netfs <sources> <source> <host name='aubergine.redhat.com'/> <dir path='/mnt/export'/> <format type='nfs'/> </source> <source> <host name='aubergine.redhat.com'/> <dir path='/home'/> <format type='nfs'/> </source> </sources> internal.h | 12 --- libvirt.c | 40 ------------ storage_backend_fs.c | 46 +++++++------- storage_backend_logical.c | 3 storage_conf.c | 150 +++++++++++++++++++++++++++------------------- storage_conf.h | 1 6 files changed, 120 insertions(+), 132 deletions(-) Daniel diff -r 32908ef883dc src/internal.h --- a/src/internal.h Wed Oct 29 11:26:37 2008 +0000 +++ b/src/internal.h Wed Oct 29 11:29:16 2008 +0000 @@ -371,18 +371,6 @@ int __virDomainMigratePerform (virDomainPtr domain, const char *cookie, int cookielen, const char *uri, unsigned long flags, const char *dname, unsigned long bandwidth); virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, const char *dname, const char *cookie, int cookielen, const char *uri, unsigned long flags); -typedef struct _virStringList virStringList; - -struct _virStringList { - char *val; - int len; - struct _virStringList *next; -}; - -char *__virStringListJoin(const virStringList *list, const char *pre, - const char *post, const char *sep); -void __virStringListFree(virStringList *list); - /** * Domain Event Notification */ diff -r 32908ef883dc src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 11:29:16 2008 +0000 @@ -5305,46 +5305,6 @@ - -/* Not for public use. Combines the elements of a virStringList - * into a single string. - */ -char *__virStringListJoin(const virStringList *list, const char *pre, - const char *post, const char *sep) -{ - size_t pre_len = strlen(pre); - size_t sep_len = strlen(sep); - size_t len = pre_len + strlen(post); - const virStringList *p; - char *retval; - - for (p = list; p; p = p->next) - len += p->len + sep_len; - if (VIR_ALLOC_N(retval, len+1) < 0) - return NULL; - strcpy(retval, pre); - len = pre_len; - for (p = list; p; p = p->next) { - strcpy(retval + len, p->val); - len += p->len; - strcpy(retval + len, sep); - len += sep_len; - } - strcpy(retval + len, post); - - return retval; -} - - -void __virStringListFree(virStringList *list) -{ - while (list) { - virStringList *p = list->next; - VIR_FREE(list); - list = p; - } -} - /* * Domain Event Notification */ diff -r 32908ef883dc src/storage_backend_fs.c --- a/src/storage_backend_fs.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_backend_fs.c Wed Oct 29 11:29:16 2008 +0000 @@ -295,7 +295,7 @@ #if WITH_STORAGE_FS struct _virNetfsDiscoverState { const char *host; - virStringList *list; + virStoragePoolSourceList list; }; typedef struct _virNetfsDiscoverState virNetfsDiscoverState; @@ -307,8 +307,8 @@ void *data) { virNetfsDiscoverState *state = data; - virStringList *newItem; const char *name, *path; + virStoragePoolSource *src; path = groups[0]; @@ -325,24 +325,17 @@ return -1; } - /* Append new XML desc to list */ - - if (VIR_ALLOC(newItem) != 0) { - virStorageReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("new xml desc")); + if (VIR_REALLOC_N(state->list.sources, state->list.nsources+1) < 0) { + virStorageReportError(conn, VIR_ERR_NO_MEMORY, NULL); return -1; } + memset(state->list.sources + state->list.nsources, 0, sizeof(*state->list.sources)); - if (asprintf(&newItem->val, - "<source><host name='%s'/><dir path='%s'/></source>", - state->host, path) <= 0) { - virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("asprintf failed")); - VIR_FREE(newItem); + src = state->list.sources + state->list.nsources++; + if (!(src->host.name = strdup(state->host)) || + !(src->dir = strdup(path))) return -1; - } - - newItem->len = strlen(newItem->val); - newItem->next = state->list; - state->list = newItem; + src->format = VIR_STORAGE_POOL_NETFS_NFS; return 0; } @@ -368,10 +361,18 @@ }; xmlDocPtr doc = NULL; xmlXPathContextPtr xpath_ctxt = NULL; - virNetfsDiscoverState state = { .host = NULL, .list = NULL }; + virNetfsDiscoverState state = { + .host = NULL, + .list = { + .type = VIR_STORAGE_POOL_NETFS, + .nsources = 0, + .sources = NULL + } + }; const char *prog[] = { SHOWMOUNT, "--no-headers", "--exports", NULL, NULL }; int exitstatus; char *retval = NULL; + unsigned int i; doc = xmlReadDoc((const xmlChar *)srcSpec, "srcSpec.xml", NULL, XML_PARSE_NOENT | XML_PARSE_NONET | @@ -400,18 +401,21 @@ &state, &exitstatus) < 0) goto cleanup; - retval = __virStringListJoin(state.list, SOURCES_START_TAG, - SOURCES_END_TAG, "\n"); + retval = virStoragePoolSourceListFormat(conn, &state.list); if (retval == NULL) { virStorageReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("retval")); goto cleanup; } cleanup: + for (i = 0; i < state.list.nsources; i++) + virStoragePoolSourceFree(&state.list.sources[i]); + + VIR_FREE(state.list.sources); + VIR_FREE(state.host); + xmlFreeDoc(doc); xmlXPathFreeContext(xpath_ctxt); - VIR_FREE(state.host); - __virStringListFree(state.list); return retval; } diff -r 32908ef883dc src/storage_backend_logical.c --- a/src/storage_backend_logical.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_backend_logical.c Wed Oct 29 11:29:16 2008 +0000 @@ -295,6 +295,7 @@ dev = &thisSource->devices[thisSource->ndevice]; thisSource->ndevice++; + thisSource->format = VIR_STORAGE_POOL_LOGICAL_LVM2; memset(dev, 0, sizeof(*dev)); dev->path = pvname; @@ -331,6 +332,8 @@ int i; memset(&sourceList, 0, sizeof(sourceList)); + sourceList.type = VIR_STORAGE_POOL_LOGICAL; + if (virStorageBackendRunProgRegex(conn, NULL, prog, 1, regexes, vars, virStorageBackendLogicalFindPoolSourcesFunc, &sourceList, &exitstatus) < 0) diff -r 32908ef883dc src/storage_conf.c --- a/src/storage_conf.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_conf.c Wed Oct 29 11:29:16 2008 +0000 @@ -472,6 +472,68 @@ return NULL; } +static int +virStoragePoolSourceFormat(virConnectPtr conn, + virBufferPtr buf, + virStorageBackendPoolOptionsPtr options, + virStoragePoolSourcePtr src) +{ + int i, j; + + virBufferAddLit(buf," <source>\n"); + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_HOST) && + src->host.name) + virBufferVSprintf(buf," <host name='%s'/>\n", src->host.name); + + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DEVICE) && + src->ndevice) { + for (i = 0 ; i < src->ndevice ; i++) { + if (src->devices[i].nfreeExtent) { + virBufferVSprintf(buf," <device path='%s'>\n", + src->devices[i].path); + for (j = 0 ; j < src->devices[i].nfreeExtent ; j++) { + virBufferVSprintf(buf, " <freeExtent start='%llu' end='%llu'/>\n", + src->devices[i].freeExtents[j].start, + src->devices[i].freeExtents[j].end); + } + virBufferAddLit(buf," </device>\n"); + } + else + virBufferVSprintf(buf, " <device path='%s'/>\n", + src->devices[i].path); + } + } + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DIR) && + src->dir) + virBufferVSprintf(buf," <dir path='%s'/>\n", src->dir); + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_ADAPTER) && + src->adapter) + virBufferVSprintf(buf," <adapter name='%s'/>\n", src->adapter); + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_NAME) && + src->name) + virBufferVSprintf(buf," <name>%s</name>\n", src->name); + + if (options->formatToString) { + const char *format = (options->formatToString)(src->format); + if (!format) { + virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, + _("unknown pool format number %d"), + src->format); + return -1; + } + virBufferVSprintf(buf," <format type='%s'/>\n", format); + } + + + if (src->authType == VIR_STORAGE_POOL_AUTH_CHAP) + virBufferVSprintf(buf," <auth type='chap' login='%s' passwd='%s'>\n", + src->auth.chap.login, + src->auth.chap.passwd); + virBufferAddLit(buf," </source>\n"); + + return 0; +} + char * virStoragePoolDefFormat(virConnectPtr conn, @@ -480,7 +542,6 @@ virBuffer buf = VIR_BUFFER_INITIALIZER; const char *type; char uuid[VIR_UUID_STRING_BUFLEN]; - int i, j; options = virStorageBackendPoolOptionsForType(def->type); if (options == NULL) @@ -505,56 +566,8 @@ virBufferVSprintf(&buf," <available>%llu</available>\n", def->available); - virBufferAddLit(&buf," <source>\n"); - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_HOST) && - def->source.host.name) - virBufferVSprintf(&buf," <host name='%s'/>\n", def->source.host.name); - - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DEVICE) && - def->source.ndevice) { - for (i = 0 ; i < def->source.ndevice ; i++) { - if (def->source.devices[i].nfreeExtent) { - virBufferVSprintf(&buf," <device path='%s'>\n", - def->source.devices[i].path); - for (j = 0 ; j < def->source.devices[i].nfreeExtent ; j++) { - virBufferVSprintf(&buf, " <freeExtent start='%llu' end='%llu'/>\n", - def->source.devices[i].freeExtents[j].start, - def->source.devices[i].freeExtents[j].end); - } - virBufferAddLit(&buf," </device>\n"); - } - else - virBufferVSprintf(&buf, " <device path='%s'/>\n", - def->source.devices[i].path); - } - } - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DIR) && - def->source.dir) - virBufferVSprintf(&buf," <dir path='%s'/>\n", def->source.dir); - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_ADAPTER) && - def->source.adapter) - virBufferVSprintf(&buf," <adapter name='%s'/>\n", def->source.adapter); - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_NAME) && - def->source.name) - virBufferVSprintf(&buf," <name>%s</name>\n", def->source.name); - - if (options->formatToString) { - const char *format = (options->formatToString)(def->source.format); - if (!format) { - virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, - _("unknown pool format number %d"), - def->source.format); - goto cleanup; - } - virBufferVSprintf(&buf," <format type='%s'/>\n", format); - } - - - if (def->source.authType == VIR_STORAGE_POOL_AUTH_CHAP) - virBufferVSprintf(&buf," <auth type='chap' login='%s' passwd='%s'>\n", - def->source.auth.chap.login, - def->source.auth.chap.passwd); - virBufferAddLit(&buf," </source>\n"); + if (virStoragePoolSourceFormat(conn, &buf, options, &def->source) < 0) + goto cleanup; virBufferAddLit(&buf," <target>\n"); @@ -1271,22 +1284,41 @@ return 0; } -char *virStoragePoolSourceListFormat(virConnectPtr conn ATTRIBUTE_UNUSED, +char *virStoragePoolSourceListFormat(virConnectPtr conn, virStoragePoolSourceListPtr def) { - int i, j; + virStorageBackendPoolOptionsPtr options; virBuffer buf = VIR_BUFFER_INITIALIZER; + const char *type; + int i; - virBufferAddLit(&buf, "<sources>"); + options = virStorageBackendPoolOptionsForType(def->type); + if (options == NULL) + return NULL; + + type = virStorageBackendToString(def->type); + if (!type) { + virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("unexpected pool type")); + goto cleanup; + } + + virBufferAddLit(&buf, "<sources>\n"); for (i = 0; i < def->nsources; i++) { - virBufferVSprintf(&buf, "<source><name>%s</name>", def->sources[i].name); - for (j = 0; j < def->sources[i].ndevice; j++) - virBufferVSprintf(&buf, "<device path='%s'/>", def->sources[i].devices[j].path); - virBufferAddLit(&buf, "</source>"); + virStoragePoolSourceFormat(conn, &buf, options, &def->sources[i]); } - virBufferAddLit(&buf, "</sources>"); + virBufferAddLit(&buf, "</sources>\n"); + + if (virBufferError(&buf)) + goto no_memory; return virBufferContentAndReset(&buf); + + no_memory: + virStorageReportError(conn, VIR_ERR_NO_MEMORY, NULL); + cleanup: + free(virBufferContentAndReset(&buf)); + return NULL; } diff -r 32908ef883dc src/storage_conf.h --- a/src/storage_conf.h Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_conf.h Wed Oct 29 11:29:16 2008 +0000 @@ -252,6 +252,7 @@ typedef struct _virStoragePoolSourceList virStoragePoolSourceList; typedef virStoragePoolSourceList *virStoragePoolSourceListPtr; struct _virStoragePoolSourceList { + int type; unsigned int nsources; virStoragePoolSourcePtr sources; }; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 1

[libvirt] libvirt adds ", boot-on" to qemu-kvm command line - prevents guest boot!
by Bruce Rogers 28 Oct '08

28 Oct '08

I'm experimenting with libvirt and qemu-kvm using a raw hard disk image that has a bootable DOS partition in it. I noticed that libvirt was adding the ",boot=on" option to the disk section of the qemu-kvm command line. This prevents the guest from booting somehow. If that option is removed, then the guest can boot just fine. What is that option used for and is there any way to cause libvirt to not add it in my scenario? - Bruce Rogers

1 0

[libvirt] [0/17] patches: mingw, gnulib, warnings, misc
by Jim Meyering 28 Oct '08

28 Oct '08

Last week, I set out simply to adjust libvirt to accommodate a recent gnulib API change, whereby you now include the standard <netdb.h> rather than the gnulib-made-up "getaddrinfo.h" header file. That meant pulling in many gnulib updates (a lot's been happening on the mingw portability front recently), and there's been some churn, so I'd pull in an update, find that it exposes more portability problems, fix them, (but that may have also added a new warning, so fix that), pull in another update, find more, etc. Most of this has been mingw-specific, but I addressed some of the test-related warnings by removing ifdefs so that the same code is compiled in both mingw and non-mingw cases. I think we've settled on a local fixed point, with the result triggering only the two XDR warnings I already wrote about. This patch series includes all of the above (leaving out 10K lines of automatically-pulled-from-gnulib diffs) and cleans up the state of .cvsignore and .gitignore files: 1 exempt gnulib from ctype-macros prohibition 2 exempt gnulib from write-avoidance syntax check 3 use ARRAY_CARDINALITY more 4 * src/network_conf.c: Include <string.h> for declaration of memcmp. 5 adapt to API change in gnulib 6 use more gnulib modules 7 updates from gnulib (this is the 10K-line diff -- mostly omitted) 8 socketcompat.h: simplify, to match latest gnulib 9 use errno, not socket_errno() 10 remove duplicate inclusion of "remote_protocol.h" (before <config.h>!) 11 * src/remote_internal.c (remoteFindDaemonPath) [!WIN32]: Don't compile. 12 include netinet etc #ifndef HAVE_WINSOCK2_H 13 * qemud/remote_protocol.x: Include "remote_protocol.h" and <rpc/xdr.h>. 14 * remote_protocol.c, remote_protocol.h: regenerate 15 cvsignore mingw build artifacts: *.exe 16 avoid many mingw-specific warnings 17 avoid compiler warning when all storage backends are disabled

2 44

[libvirt] xen driver & events
by Ben Guthro 28 Oct '08

28 Oct '08

I'm looking into implementing emitting events from the xen driver, and I've run into a bit of a snag that I would like to discuss I've attached an old version of my patch for reference. However - from past discussions, I know that there was a desire to keep the xen driver stateless. However, given the semantics of xenstore watches, and events, I'm not sure I can see a way to preserve this. Lets take the case of creating a new domain: XenStore gives us the functionaliity to put a watch on the special xenstore key @introduceDomain. However, when the watch fires - I see no mechanism of determining which domain has been introduced. The only mechanism I can find is to maintain a list of domains, and keep this up to date with events. So I'm wondering if anyone has any ideas, or if this will introduce unwanted, but necessary state into the driver? Ben

2 1

[libvirt] anyone implementing host device enumeration?
by David Lively 28 Oct '08

28 Oct '08

Hi - I'm about to start working on host device enumeration, along the (HAL-ish) lines of what was discussed back in April: https://www.redhat.com/archives/libvir-list/2008-April/msg00005.html I know the xml details haven't been fully fleshed out, but there seems to be agreement that it will be a fairly direct mapping from (a subset of the) HAL info to the details that we need in the xml. Doubtless it will take a while to figure out exactly what subset suffices (and, for that matter, if everything needed is available via HAL ...), but I think the work is well-defined for some of the obvious details (discussed in the above thread) on which there's broad agreement. Is anyone working on such an implementation? Thanks, Dave

3 37

[libvirt] Live migration sanity checks
by Chris Lalancette 28 Oct '08

28 Oct '08

All, One thing that oVirt would like to have (and that might be useful for other users) is a call that would do some basic sanity checking for live migration. This call would go over to the remote libvirtd, do some checks, and return whether we think migration is likely to succeed. Note that I say "likely to succeed", because there are certainly things that can cause migration to fail after we've made checks, but anything is better than what we have today ("try it and pray"). Now, in order for this call to be widely useful, I think we would have to allow the caller to specify *which* of the available checks they would like to perform, and then have some sort of return value that indicated if there are show-stopper problems, or just problems that may cause things to be sub-optimal on the remote side. The caller could then decide what action it wants to take. There is also a corollary to the "is it sane for me to migrate", which is, given two hosts A and B, what's the lowest common denominator I need to run my guest at so that migration will likely be successful between them. This could also be used by management apps to make sure things are configured properly for the guest before ever starting it. The biggest problem with implementing these calls, however, is that there is no comprehensive list of things we should check. This e-mail is an attempt to write down some of the more obvious things we need to check, and to garner discussion of things I might have missed. Once I have a proper list, I'll add it to the TODO page on the libvirt Wiki so it's at least somewhere permanent. Note that we don't have to implement *all* of these as a first go at this; if we leave it open enough, we can add more checks as we go along without breaking compatibility. MIGRATION CRITERIA: 0) Matching hypervisors - seems obvious, but I'm not sure if we have these checks today. Make sure we don't try to migrate Xen to KVM or vice-versa. We also might want to think of at least warning the caller if you try to migrate from a "newer" hypervisor (say, Xen 3.2) to an "older" hypervisor (say, Xen 3.1). That should, in theory, work, but maybe the caller would prefer not to do that if possible. Rich has pointed out that KVM and Xen are accidentally incompatible in libvirt, but we should make it explicit. 1) Matching CPU architectures - also obvious, but as far as I know today, there's no checking for this (well, at least in Xen; I don't know about libvirt). So you can happily attempt to migrate from i386 -> ia64, and watch the fireworks. We also need to make sure you can't migrate x86_64 -> i386. I believe i386 -> x86_64 should work, but this might be hypervisor dependent. 2) Matching CPU vendors - this one isn't a hard requirement; given the things below, we may still be likely to succeed even if we go from AMD to Intel or vice-versa. It still might be useful information for the caller to know. 3) CPU flags - the CPU flags of the destination *must* be a superset of the CPU flags that were presented to the guest at startup. Many OS's and application check for CPU flags once at startup to choose optimized routines, and then never check again; if they happened to select sse3, and sse3 is not there on the destination, then they will (eventually) crash. This is where the CPU masking technology and the lowest common denominator libvirt call can make a big difference. If you make sure to mask some of the CPU flags off of the guest when you are first creating it, then the destination host just needs a superset of the flags that were presented to the guest at bootup, which makes the problem easier. 4) Number of CPUs - generally, you want the destination to have at least one physical CPU for each virtual CPU assigned to the guest. However, I can see use cases where this might not be the case (temporary or emergency migrations). So this would probably be a warning, and the caller can make the choice of whether to proceed. 5a) Memory - non-NUMA -> non-NUMA - fairly straightforward. The destination must have enough memory to fit the guest memory. We might want to do some "extra" checking on the destination to make sure we aren't going to OOM the destination as soon as we arrive. 5b) Memory - non-NUMA -> NUMA - A little trickier. There are no cpusets we have to worry about, since we are coming from non-NUMA, but for absolute best performance, we should try to fit the whole guest into a single NUMA node. Of course, if that node is overloaded, that may be a bad idea. NUMA placement problem, basically. 5c) Memory - NUMA -> non-NUMA - Less tricky. On the destination, all memory is "equally" far away, so no need to worry about cpusets. Just have to make sure that there is enough memory on the destination for the guest. 5d) Memory - NUMA -> NUMA - Tricky, just like case 5b). Need to determine if there is enough memory in the machine first, then check if we can fit the guest in a single node, and also check if we can match the cpuset from the source on the destination. 6a) Networks - at the very least, the destination must have the same bridges configured as the source side. Whether those bridges are hooked to the same physical networks as the source or not is another question, and may be outside the bounds of what we can/should check. 6b) Networks - we need to make sure that the device model on the remote side supports the same devices as the source side. That is, if you have a e1000 nic on the source side, but your destination doesn't support it, you are going to fail the migration. 7a) Disks - we have to make sure that all of the disks on the source side are available on the destination side, at the same paths. To be entirely clear, we have to make sure that the file on the destination side is the *same* file as on the source side, not just a file with the same name. For traditional file-based, the best we can do may be path names. For device names (like LVM, actual disk partitions, etc.), we might be able to take advantage of device enumaration API's and validate that the device info is the same (UUID matching, etc.). 7b) Disks - Additionally, we need to make sure that the device model on the remote side supports the same devices as the source side. That is, if you have a virtio drive on the source side, but your destination host doesn't support virtio on the backend, you are going to fail. (virtio might be a bad example, but there might be further things in the device model in the future that we might not necessarily have on both ends). ------ That's the absolute basic criteria. More esoteric/less thought-out criteria follow: 8) Time skew - this is less thought out at the moment, but if you calibrated your lpj at boot time, and now you migrate to a host with a different clock frequency, your time will run either fast or slow compared to what you expect. Also synchronized vs. unsynchronized TSC could cause issues, etc. 9) PCI-passthrough - this is actually a check on the *source* side. If the guest is using a PCI passthrough device, it *usually* doesn't make sense to live migrate it. On the other hand, it looks like various groups are trying to make this work (with the bonding of a PV NIC to a PCI-passthrough NIC), so we need to keep that in mind, and not necessarily make this a hard failure. 10) MSR's?? - I've thought about this one before, but I'm not sure what the answer is. Unfortunately, MSR's in virtualization are sort of done hodge-podge. That is, some MSR's are emulated for the guests, some MSR's guests have direct control over, and some aren't emulated at all. This one can get ugly fast; it's probably something we want to leave until later. 11) CPUID?? - Not entirely sure about this one; there is a lot of model-specific information encoded in the various CPUID calls (things like cache size, cache line size, etc. etc). However, I don't know if CPUID instructions are trapped-n-emulated under the different hypervisors, or if they are done right on the processor itself. I guess if an OS or application called this at startup, cached the information, and then checked again later it might get upset, but it seems somewhat unlikely. Things that I've missed? Thanks, Chris Lalancette

6 9

[libvirt] mingw warnings
by Jim Meyering 27 Oct '08

27 Oct '08

I've been building with mingw to make sure that my gnulib-upgrade-and-extend patch doesn't break anything and found some compiler warnings. I fixed most of them, but this one is ugly: ../qemud/remote_protocol.c:317: warning: assignment from incompatible pointer type ../qemud/remote_protocol.c:346: warning: assignment from incompatible pointer type That's due to the fact that the mingw xdr.h header, /usr/i686-pc-mingw32/sys-root/mingw/include/rpc/xdr.h, defines this #define XDR_INLINE(xdrs, len) \ (*(xdrs)->x_ops->x_inline)(xdrs, len) and has an x_inline member of type long*, typedef struct { enum xdr_op x_op; /* operation; fast additional param */ struct xdr_ops { bool_t (*x_getlong)(); /* get a long from underlying stream */ bool_t (*x_putlong)(); /* put a long to " */ bool_t (*x_getbytes)();/* get some bytes from " */ bool_t (*x_putbytes)();/* put some bytes to " */ u_int (*x_getpostn)();/* returns bytes off from beginning */ bool_t (*x_setpostn)();/* lets you reposition the stream */ long * (*x_inline)(); /* buf quick ptr to buffered data */ while we're used to one with type matching buf: int32_t*: If you're serious about getting rid of warnings even on mingw, here's one approach: diff --git a/qemud/remote_protocol.c b/qemud/remote_protocol.c index 68e9696..c8cf504 100644 --- a/qemud/remote_protocol.c +++ b/qemud/remote_protocol.c @@ -314,7 +314,7 @@ xdr_remote_node_get_info_ret (XDR *xdrs, remote_node_get_info_ret *objp) return FALSE; if (!xdr_quad_t (xdrs, &objp->memory)) return FALSE; - buf = XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); + buf = (void*)XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); if (buf == NULL) { if (!xdr_int (xdrs, &objp->cpus)) return FALSE; @@ -343,7 +343,7 @@ xdr_remote_node_get_info_ret (XDR *xdrs, remote_node_get_info_ret *objp) return FALSE; if (!xdr_quad_t (xdrs, &objp->memory)) return FALSE; - buf = XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); + buf = (void*)XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); if (buf == NULL) { if (!xdr_int (xdrs, &objp->cpus)) return FALSE; Better would be to fix the decl in xdr.h, but probably not feasible. Alternatively, redefine XDR_INLINE for mingw, adding the void* cast in that. But that means peeking inside (and copying) the current definition, so I prefer the above. So I'm leaning towards using the patch above.

3 3

[libvirt] FYI: fixes to events code for mingw
by Daniel P. Berrange 24 Oct '08

24 Oct '08

FYI, I just committed the following patch to remove a couple of unneccessary includes of sys/poll.h, and disable the event-test demo on platforms which lack sys/poll.h This makes the mingw builds work again Regards, Daniel Index: configure.in =================================================================== RCS file: /data/cvs/libvirt/configure.in,v retrieving revision 1.176 diff -u -p -r1.176 configure.in --- configure.in 23 Oct 2008 13:18:18 -0000 1.176 +++ configure.in 24 Oct 2008 13:08:15 -0000 @@ -70,7 +70,7 @@ dnl Availability of various common funct AC_CHECK_FUNCS([cfmakeraw regexec uname sched_getaffinity getuid getgid]) dnl Availability of various common headers (non-fatal if missing). -AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h sched.h termios.h]) +AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h sched.h termios.h sys/poll.h]) dnl Where are the XDR functions? dnl If portablexdr is installed, prefer that. Index: examples/domain-events/events-c/event-test.c =================================================================== RCS file: /data/cvs/libvirt/examples/domain-events/events-c/event-test.c,v retrieving revision 1.1 diff -u -p -r1.1 event-test.c --- examples/domain-events/events-c/event-test.c 23 Oct 2008 13:18:18 -0000 1.1 +++ examples/domain-events/events-c/event-test.c 24 Oct 2008 13:08:15 -0000 @@ -1,6 +1,9 @@ #include <config.h> + #include <stdio.h> #include <string.h> + +#if HAVE_SYS_POLL_H #include <sys/types.h> #include <sys/poll.h> #include <libvirt/libvirt.h> @@ -259,3 +262,9 @@ int main(int argc, char **argv) return 0; } +#else +int main(void) { + printf("event-test program not available without sys/poll.h support\n"); + return 1; +} +#endif Index: src/libvirt.c =================================================================== RCS file: /data/cvs/libvirt/src/libvirt.c,v retrieving revision 1.162 diff -u -p -r1.162 libvirt.c --- src/libvirt.c 24 Oct 2008 08:55:13 -0000 1.162 +++ src/libvirt.c 24 Oct 2008 13:08:16 -0000 @@ -16,7 +16,6 @@ #include <string.h> #include <sys/types.h> #include <sys/stat.h> -#include <sys/poll.h> #include <unistd.h> #include <assert.h> #ifdef HAVE_SYS_WAIT_H Index: src/remote_internal.c =================================================================== RCS file: /data/cvs/libvirt/src/remote_internal.c,v retrieving revision 1.89 diff -u -p -r1.89 remote_internal.c --- src/remote_internal.c 23 Oct 2008 13:18:18 -0000 1.89 +++ src/remote_internal.c 24 Oct 2008 13:08:16 -0000 @@ -34,7 +34,6 @@ #include <signal.h> #include <sys/types.h> #include <sys/stat.h> -#include <sys/poll.h> #include <fcntl.h> #ifdef HAVE_SYS_WAIT_H -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 2

[libvirt] PATCH: Remove util-lib file and replace with libvirt_util.la
by Daniel P. Berrange 24 Oct '08

24 Oct '08

We've currently got a slightly nasty hack where some of the stuff from util.c is split into a util-lib.c file so it can be compiled twice, once for libvirt.la, and second for virsh, without exporting it in our public API. I'm trying to clean up the code / file deps and build stuff in preparation of dlopen() support of drivers. We also have a bunch of stuff in util.a that is exported unofficially in the ABI. This patch demonstrates a different approach, putting the util-lib.c code back into util.c. We then define a libtool convenience library covering a bunch of our generic common code, that is linked to both libvirt.la and virsh. This also lets us remove most of the secret exports from util.c. The main change is that a little more code is statically linked into virsh binary itself. Personally I don't think this is a huge problem. Another possible approach though could be to create a real libvirt-common.so file which gets installed into /usr/lib, but is explicitly not preserving ABI. We could enforce this by using a version script to encode a version number against every symbol. This would mean anyone linking to the libvirt-common.so would be forced to relink on every new update - which would be such a PITA only in-tree programs like virsh & libvirtd would do it. Daniel diff -r 5bd402f3762e configure.in --- a/configure.in Fri Oct 24 14:13:53 2008 +0100 +++ b/configure.in Fri Oct 24 14:14:07 2008 +0100 @@ -671,6 +671,8 @@ with_storage_dir=yes if test "$with_libvirtd" = "no"; then + with_qemu=no + with_lxc=no with_storage_dir=no with_storage_fs=no with_storage_lvm=no diff -r 5bd402f3762e qemud/Makefile.am --- a/qemud/Makefile.am Fri Oct 24 14:13:53 2008 +0100 +++ b/qemud/Makefile.am Fri Oct 24 14:14:07 2008 +0100 @@ -9,8 +9,7 @@ remote_dispatch_prototypes.h \ remote_dispatch_localvars.h \ remote_dispatch_proc_switch.h \ - remote_protocol.h remote_protocol.c \ - $(srcdir)/../src/util-lib.c + remote_protocol.h remote_protocol.c AVAHI_SOURCES = \ mdns.c mdns.h @@ -88,7 +87,7 @@ $(POLKIT_LIBS) libvirtd_DEPENDENCIES = ../src/libvirt.la -libvirtd_LDADD = ../src/libvirt.la ../gnulib/lib/libgnu.la +libvirtd_LDADD = ../src/libvirt.la ../src/libvirt_util.la ../gnulib/lib/libgnu.la if HAVE_POLKIT policydir = $(datadir)/PolicyKit/policy diff -r 5bd402f3762e src/Makefile.am --- a/src/Makefile.am Fri Oct 24 14:13:53 2008 +0100 +++ b/src/Makefile.am Fri Oct 24 14:14:07 2008 +0100 @@ -37,21 +37,30 @@ lib_LTLIBRARIES = libvirt.la +noinst_LTLIBRARIES = libvirt_util.la + # These files are not related to driver APIs. Simply generic # helper APIs for various purposes -GENERIC_LIB_SOURCES = \ - bridge.c bridge.h \ +UTIL_SOURCES = \ buf.c buf.h \ conf.c conf.h \ event.c event.h \ - iptables.c iptables.h \ memory.c memory.h \ qparams.c qparams.h \ - stats_linux.c stats_linux.h \ uuid.c uuid.h \ util.c util.h \ virterror.c \ xml.c xml.h + +DRIVER_SOURCES = \ + driver.h \ + hash.c hash.h \ + internal.h \ + libvirt.c \ + bridge.c bridge.h \ + iptables.c iptables.h \ + stats_linux.c stats_linux.h + # Domain driver generic impl APIs DOMAIN_CONF_SOURCES = \ @@ -147,14 +156,13 @@ # First deal with sources usable in non-daemon context libvirt_la_SOURCES = \ - driver.h \ - hash.c hash.h \ - internal.h \ - libvirt.c \ - $(GENERIC_LIB_SOURCES) \ + $(DRIVER_SOURCES) \ $(DOMAIN_CONF_SOURCES) \ $(NETWORK_CONF_SOURCES) \ $(STORAGE_CONF_SOURCES) + +libvirt_util_la_SOURCES = \ + $(UTIL_SOURCES) # Drivers usable outside daemon context if WITH_TEST @@ -180,6 +188,7 @@ endif libvirt_la_SOURCES += $(STORAGE_DRIVER_SOURCES) libvirt_la_SOURCES += $(STORAGE_DRIVER_FS_SOURCES) +endif if WITH_QEMU libvirt_la_SOURCES += $(QEMU_DRIVER_SOURCES) @@ -200,7 +209,6 @@ if WITH_STORAGE_DISK libvirt_la_SOURCES += $(STORAGE_DRIVER_DISK_SOURCES) endif -endif # Add all conditional sources just in case... EXTRA_DIST += \ @@ -220,17 +228,18 @@ libvirt_la_LIBADD = $(LIBXML_LIBS) $(GNUTLS_LIBS) $(SASL_LIBS) $(SELINUX_LIBS) \ $(NUMACTL_LIBS) \ + libvirt_util.la \ @CYGWIN_EXTRA_LIBADD@ ../gnulib/lib/libgnu.la libvirt_la_LDFLAGS = -Wl,--version-script=$(srcdir)/libvirt_sym.version \ -version-info @LIBVIRT_VERSION_INFO@ \ $(COVERAGE_CFLAGS:-f%=-Wc,-f%) \ @CYGWIN_EXTRA_LDFLAGS@ @MINGW_EXTRA_LDFLAGS@ -libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) -DIN_LIBVIRT +libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) # Create an automake "convenience library" version of libvirt_la, # just for testing, since the test harness requires access to internal # bits and pieces that we don't want to make publicly accessible. -noinst_LTLIBRARIES = libvirt_test.la +noinst_LTLIBRARIES += libvirt_test.la # Convert libvirt_sym.version # to libvirt_test_sym.version, and @@ -250,12 +259,11 @@ virsh_SOURCES = \ console.c console.h \ - util-lib.c util-lib.h \ virsh.c virsh_LDFLAGS = $(WARN_CFLAGS) $(COVERAGE_LDFLAGS) virsh_DEPENDENCIES = $(DEPS) -virsh_LDADD = $(LDADDS) $(VIRSH_LIBS) +virsh_LDADD = $(LDADDS) $(VIRSH_LIBS) libvirt_util.la virsh_CFLAGS = $(COVERAGE_CFLAGS) $(READLINE_CFLAGS) BUILT_SOURCES = virsh-net-edit.c virsh-pool-edit.c @@ -320,7 +328,6 @@ libexec_PROGRAMS = if WITH_STORAGE_DISK -if WITH_LIBVIRTD libexec_PROGRAMS += libvirt_parthelper libvirt_parthelper_SOURCES = $(STORAGE_HELPER_DISK_SOURCES) @@ -328,22 +335,19 @@ libvirt_parthelper_LDADD = $(LIBPARTED_LIBS) libvirt_parthelper_CFLAGS = $(LIBPARTED_CFLAGS) endif -endif EXTRA_DIST += $(STORAGE_HELPER_DISK_SOURCES) if WITH_LXC -if WITH_LIBVIRTD libexec_PROGRAMS += libvirt_lxc libvirt_lxc_SOURCES = \ $(LXC_CONTROLLER_SOURCES) \ - $(GENERIC_LIB_SOURCES) \ $(DOMAIN_CONF_SOURCES) libvirt_lxc_LDFLAGS = $(WARN_CFLAGS) $(COVERAGE_LDCFLAGS) -libvirt_lxc_LDADD = $(LIBXML_LIBS) ../gnulib/lib/libgnu.la +libvirt_lxc_LDADD = $(LIBXML_LIBS) ../gnulib/lib/libgnu.la \ + libvirt_util.la libvirt_lxc_CFLAGS = $(LIBPARTED_CFLAGS) -endif endif EXTRA_DIST += $(LXC_CONTROLLER_SOURCES) diff -r 5bd402f3762e src/buf.c --- a/src/buf.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/buf.c Fri Oct 24 14:14:07 2008 +0100 @@ -88,7 +88,7 @@ * */ void -__virBufferAdd(const virBufferPtr buf, const char *str, int len) +virBufferAdd(const virBufferPtr buf, const char *str, int len) { unsigned int needSize; @@ -120,7 +120,7 @@ * */ void -__virBufferAddChar (virBufferPtr buf, char c) +virBufferAddChar (virBufferPtr buf, char c) { unsigned int needSize; @@ -150,7 +150,7 @@ * Returns the buffer content or NULL in case of error. */ char * -__virBufferContentAndReset(const virBufferPtr buf) +virBufferContentAndReset(const virBufferPtr buf) { char *str; if (buf == NULL) @@ -176,7 +176,7 @@ * Return true if in error, 0 if normal */ int -__virBufferError(const virBufferPtr buf) +virBufferError(const virBufferPtr buf) { if (buf == NULL) return 1; @@ -208,7 +208,7 @@ * Do a formatted print to an XML buffer. */ void -__virBufferVSprintf(const virBufferPtr buf, const char *format, ...) +virBufferVSprintf(const virBufferPtr buf, const char *format, ...) { int size, count, grow_size; va_list locarg, argptr; diff -r 5bd402f3762e src/buf.h --- a/src/buf.h Fri Oct 24 14:13:53 2008 +0100 +++ b/src/buf.h Fri Oct 24 14:14:07 2008 +0100 @@ -34,25 +34,18 @@ }; #endif -char *__virBufferContentAndReset(const virBufferPtr buf); -int __virBufferError(const virBufferPtr buf); +char *virBufferContentAndReset(const virBufferPtr buf); +int virBufferError(const virBufferPtr buf); unsigned int virBufferUse(const virBufferPtr buf); -void __virBufferAdd(const virBufferPtr buf, const char *str, int len); -void __virBufferAddChar(const virBufferPtr buf, char c); -void __virBufferVSprintf(const virBufferPtr buf, const char *format, ...) +void virBufferAdd(const virBufferPtr buf, const char *str, int len); +void virBufferAddChar(const virBufferPtr buf, char c); +void virBufferVSprintf(const virBufferPtr buf, const char *format, ...) ATTRIBUTE_FORMAT(printf, 2, 3); void virBufferStrcat(const virBufferPtr buf, ...); void virBufferEscapeString(const virBufferPtr buf, const char *format, const char *str); void virBufferURIEncodeString (const virBufferPtr buf, const char *str); #define virBufferAddLit(buf_, literal_string_) \ - __virBufferAdd (buf_, "" literal_string_ "", sizeof literal_string_ - 1) - -#define virBufferAdd(b,s,l) __virBufferAdd((b),(s),(l)) -#define virBufferAddChar(b,c) __virBufferAddChar((b),(c)) -#define virBufferVSprintf(b,f,...) __virBufferVSprintf((b),(f), __VA_ARGS__) - -#define virBufferContentAndReset(b) __virBufferContentAndReset((b)) -#define virBufferError(b) __virBufferError((b)) + virBufferAdd (buf_, "" literal_string_ "", sizeof literal_string_ - 1) #endif /* __VIR_BUFFER_H__ */ diff -r 5bd402f3762e src/conf.c --- a/src/conf.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/conf.c Fri Oct 24 14:14:07 2008 +0100 @@ -142,7 +142,7 @@ * Free a value */ void -__virConfFreeValue(virConfValuePtr val) +virConfFreeValue(virConfValuePtr val) { if (val == NULL) return; @@ -156,7 +156,7 @@ } virConfPtr -__virConfNew(void) +virConfNew(void) { virConfPtr ret; @@ -691,7 +691,7 @@ #define MAX_CONFIG_FILE_SIZE (1024*1024*10) /** - * __virConfReadFile: + * virConfReadFile: * @filename: the path to the configuration file. * * Reads a configuration file. @@ -700,7 +700,7 @@ * read or parse the file, use virConfFree() to free the data. */ virConfPtr -__virConfReadFile(const char *filename) +virConfReadFile(const char *filename) { char *content; int len; @@ -724,7 +724,7 @@ } /** - * __virConfReadMem: + * virConfReadMem: * @memory: pointer to the content of the configuration file * @len: length in byte * @@ -735,7 +735,7 @@ * parse the content, use virConfFree() to free the data. */ virConfPtr -__virConfReadMem(const char *memory, int len) +virConfReadMem(const char *memory, int len) { if ((memory == NULL) || (len < 0)) { virConfError(NULL, VIR_ERR_INVALID_ARG, __FUNCTION__); @@ -748,7 +748,7 @@ } /** - * __virConfFree: + * virConfFree: * @conf: a configuration file handle * * Frees all data associated to the handle @@ -756,7 +756,7 @@ * Returns 0 in case of success, -1 in case of error. */ int -__virConfFree(virConfPtr conf) +virConfFree(virConfPtr conf) { virConfEntryPtr tmp; if (conf == NULL) { @@ -779,7 +779,7 @@ } /** - * __virConfGetValue: + * virConfGetValue: * @conf: a configuration file handle * @entry: the name of the entry * @@ -789,7 +789,7 @@ * associated will be freed when virConfFree() is called */ virConfValuePtr -__virConfGetValue(virConfPtr conf, const char *setting) +virConfGetValue(virConfPtr conf, const char *setting) { virConfEntryPtr cur; @@ -803,7 +803,7 @@ } /** - * __virConfSetValue: + * virConfSetValue: * @conf: a configuration file handle * @entry: the name of the entry * @value: the new configuration value @@ -816,7 +816,7 @@ * Returns 0 on success, or -1 on failure. */ int -__virConfSetValue (virConfPtr conf, +virConfSetValue (virConfPtr conf, const char *setting, virConfValuePtr value) { @@ -861,7 +861,7 @@ /** - * __virConfWriteFile: + * virConfWriteFile: * @filename: the path to the configuration file. * @conf: the conf * @@ -870,7 +870,7 @@ * Returns the number of bytes written or -1 in case of error. */ int -__virConfWriteFile(const char *filename, virConfPtr conf) +virConfWriteFile(const char *filename, virConfPtr conf) { virBuffer buf = VIR_BUFFER_INITIALIZER; virConfEntryPtr cur; @@ -915,7 +915,7 @@ } /** - * __virConfWriteMem: + * virConfWriteMem: * @memory: pointer to the memory to store the config file * @len: pointer to the length in bytes of the store, on output the size * @conf: the conf @@ -928,7 +928,7 @@ * Returns the number of bytes written or -1 in case of error. */ int -__virConfWriteMem(char *memory, int *len, virConfPtr conf) +virConfWriteMem(char *memory, int *len, virConfPtr conf) { virBuffer buf = VIR_BUFFER_INITIALIZER; virConfEntryPtr cur; diff -r 5bd402f3762e src/conf.h --- a/src/conf.h Fri Oct 24 14:13:53 2008 +0100 +++ b/src/conf.h Fri Oct 24 14:14:07 2008 +0100 @@ -61,32 +61,22 @@ typedef struct _virConf virConf; typedef virConf *virConfPtr; -virConfPtr __virConfNew (void); -virConfPtr __virConfReadFile (const char *filename); -virConfPtr __virConfReadMem (const char *memory, +virConfPtr virConfNew (void); +virConfPtr virConfReadFile (const char *filename); +virConfPtr virConfReadMem (const char *memory, int len); -int __virConfFree (virConfPtr conf); -void __virConfFreeValue (virConfValuePtr val); +int virConfFree (virConfPtr conf); +void virConfFreeValue (virConfValuePtr val); -virConfValuePtr __virConfGetValue (virConfPtr conf, +virConfValuePtr virConfGetValue (virConfPtr conf, const char *setting); -int __virConfSetValue (virConfPtr conf, +int virConfSetValue (virConfPtr conf, const char *setting, virConfValuePtr value); -int __virConfWriteFile (const char *filename, +int virConfWriteFile (const char *filename, virConfPtr conf); -int __virConfWriteMem (char *memory, +int virConfWriteMem (char *memory, int *len, virConfPtr conf); -#define virConfNew() __virConfNew() -#define virConfReadFile(f) __virConfReadFile((f)) -#define virConfReadMem(m,l) __virConfReadMem((m),(l)) -#define virConfFree(c) __virConfFree((c)) -#define virConfFreeValue(v) __virConfFreeValue((v)) -#define virConfGetValue(c,s) __virConfGetValue((c),(s)) -#define virConfSetValue(c,s,v) __virConfSetValue((c),(s),(v)) -#define virConfWriteFile(f,c) __virConfWriteFile((f),(c)) -#define virConfWriteMem(m,l,c) __virConfWriteMem((m),(l),(c)) - #endif /* __VIR_CONF_H__ */ diff -r 5bd402f3762e src/console.c --- a/src/console.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/console.c Fri Oct 24 14:14:07 2008 +0100 @@ -37,7 +37,7 @@ #include "console.h" #include "internal.h" -#include "util-lib.h" +#include "util.h" /* ie Ctrl-] as per telnet */ #define CTRL_CLOSE_BRACKET '\35' diff -r 5bd402f3762e src/libvirt_sym.version --- a/src/libvirt_sym.version Fri Oct 24 14:13:53 2008 +0100 +++ b/src/libvirt_sym.version Fri Oct 24 14:14:07 2008 +0100 @@ -157,15 +157,6 @@ guarentee provided for the public symbols above */ - __virConfNew; - __virConfReadFile; - __virConfReadMem; - __virConfFree; - __virConfGetValue; - __virConfSetValue; - __virConfWriteFile; - __virConfWriteMem; - __virGetDomain; __virGetNetwork; __virGetStoragePool; @@ -183,21 +174,5 @@ __virDomainMigratePerform; __virDomainMigrateFinish; - __virFileReadAll; - __virStrToLong_i; - __virStrToLong_ull; - - __virBufferVSprintf; - __virBufferAdd; - __virBufferAddChar; - __virBufferContentAndReset; - __virBufferError; - - __virMacAddrCompare; - - __virAlloc; - __virAllocN; - __virReallocN; - __virFree; local: *; }; diff -r 5bd402f3762e src/util-lib.c --- a/src/util-lib.c Fri Oct 24 14:13:53 2008 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,52 +0,0 @@ -/* - * common, generic utility functions - * - * Copyright (C) 2006, 2007, 2008 Red Hat, Inc. - * See COPYING.LIB for the License of this software - */ - -#include <config.h> - -#include <unistd.h> -#include <errno.h> - -#include "util-lib.h" - -/* Like read(), but restarts after EINTR */ -int saferead(int fd, void *buf, size_t count) -{ - size_t nread = 0; - while (count > 0) { - ssize_t r = read(fd, buf, count); - if (r < 0 && errno == EINTR) - continue; - if (r < 0) - return r; - if (r == 0) - return nread; - buf = (char *)buf + r; - count -= r; - nread += r; - } - return nread; -} - -/* Like write(), but restarts after EINTR */ -ssize_t safewrite(int fd, const void *buf, size_t count) -{ - size_t nwritten = 0; - while (count > 0) { - ssize_t r = write(fd, buf, count); - - if (r < 0 && errno == EINTR) - continue; - if (r < 0) - return r; - if (r == 0) - return nwritten; - buf = (const char *)buf + r; - count -= r; - nwritten += r; - } - return nwritten; -} diff -r 5bd402f3762e src/util-lib.h --- a/src/util-lib.h Fri Oct 24 14:13:53 2008 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,25 +0,0 @@ -/* - * private utility functions - * - * Copyright (C) 2008 Red Hat, Inc. - * See COPYING.LIB for the License of this software - */ - -#ifndef __UTIL_LIB_H__ -#define __UTIL_LIB_H__ - -#include <sys/types.h> - -/* - * To avoid a double definition of the function when compiling - * programs using both util-lib and libvirt, like virsh - */ -#ifdef IN_LIBVIRT -#define saferead libvirt_saferead -#define safewrite libvirt_safewrite -#endif - -int saferead(int fd, void *buf, size_t count); -ssize_t safewrite(int fd, const void *buf, size_t count); - -#endif diff -r 5bd402f3762e src/util.c --- a/src/util.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/util.c Fri Oct 24 14:14:07 2008 +0100 @@ -52,7 +52,6 @@ #include "buf.h" #include "util.h" #include "memory.h" -#include "util-lib.c" #ifndef NSIG # define NSIG 32 @@ -502,7 +501,7 @@ } /* Like virFileReadLimFP, but use a file descriptor rather than a FILE*. */ -int __virFileReadLimFD(int fd_arg, int maxlen, char **buf) +int virFileReadLimFD(int fd_arg, int maxlen, char **buf) { int fd = dup (fd_arg); if (fd >= 0) { @@ -522,7 +521,7 @@ return -1; } -int __virFileReadAll(const char *path, int maxlen, char **buf) +int virFileReadAll(const char *path, int maxlen, char **buf) { FILE *fh = fopen(path, "r"); if (fh == NULL) { @@ -812,7 +811,7 @@ validity. This function is careful to return -1 when the string S represents a number that is not representable as an "int". */ int -__virStrToLong_i(char const *s, char **end_ptr, int base, int *result) +virStrToLong_i(char const *s, char **end_ptr, int base, int *result) { long int val; char *p; @@ -869,7 +868,7 @@ /* Just like virStrToLong_i, above, but produce an "unsigned long long" value. */ int -__virStrToLong_ull(char const *s, char **end_ptr, int base, unsigned long long *result) +virStrToLong_ull(char const *s, char **end_ptr, int base, unsigned long long *result) { unsigned long long val; char *p; @@ -941,7 +940,7 @@ * as well as leading zeros. */ int -__virMacAddrCompare (const char *p, const char *q) +virMacAddrCompare (const char *p, const char *q) { unsigned char c, d; do { @@ -1090,3 +1089,44 @@ return idx; } + + +/* Like read(), but restarts after EINTR */ +int saferead(int fd, void *buf, size_t count) +{ + size_t nread = 0; + while (count > 0) { + ssize_t r = read(fd, buf, count); + if (r < 0 && errno == EINTR) + continue; + if (r < 0) + return r; + if (r == 0) + return nread; + buf = (char *)buf + r; + count -= r; + nread += r; + } + return nread; +} + +/* Like write(), but restarts after EINTR */ +ssize_t safewrite(int fd, const void *buf, size_t count) +{ + size_t nwritten = 0; + while (count > 0) { + ssize_t r = write(fd, buf, count); + + if (r < 0 && errno == EINTR) + continue; + if (r < 0) + return r; + if (r == 0) + return nwritten; + buf = (const char *)buf + r; + count -= r; + nwritten += r; + } + return nwritten; +} + diff -r 5bd402f3762e src/util.h --- a/src/util.h Fri Oct 24 14:13:53 2008 +0100 +++ b/src/util.h Fri Oct 24 14:14:07 2008 +0100 @@ -25,7 +25,6 @@ #ifndef __VIR_UTIL_H__ #define __VIR_UTIL_H__ -#include "util-lib.h" #include "verify.h" #include <sys/select.h> @@ -46,11 +45,12 @@ int flags); int virRun(virConnectPtr conn, const char *const*argv, int *status); -int __virFileReadLimFD(int fd, int maxlen, char **buf); -#define virFileReadLimFD(fd,m,b) __virFileReadLimFD((fd),(m),(b)) +int saferead(int fd, void *buf, size_t count); +ssize_t safewrite(int fd, const void *buf, size_t count); -int __virFileReadAll(const char *path, int maxlen, char **buf); -#define virFileReadAll(p,m,b) __virFileReadAll((p),(m),(b)) +int virFileReadLimFD(int fd, int maxlen, char **buf); + +int virFileReadAll(const char *path, int maxlen, char **buf); int virFileMatchesNameSuffix(const char *file, const char *name, @@ -88,11 +88,10 @@ int virFileDeletePid(const char *dir, const char *name); -int __virStrToLong_i(char const *s, - char **end_ptr, - int base, - int *result); -#define virStrToLong_i(s,e,b,r) __virStrToLong_i((s),(e),(b),(r)) +int virStrToLong_i(char const *s, + char **end_ptr, + int base, + int *result); int virStrToLong_ui(char const *s, char **end_ptr, @@ -102,14 +101,12 @@ char **end_ptr, int base, long long *result); -int __virStrToLong_ull(char const *s, - char **end_ptr, - int base, - unsigned long long *result); -#define virStrToLong_ull(s,e,b,r) __virStrToLong_ull((s),(e),(b),(r)) +int virStrToLong_ull(char const *s, + char **end_ptr, + int base, + unsigned long long *result); -int __virMacAddrCompare (const char *mac1, const char *mac2); -#define virMacAddrCompare(mac1,mac2) __virMacAddrCompare((mac1),(mac2)) +int virMacAddrCompare (const char *mac1, const char *mac2); void virSkipSpaces(const char **str); int virParseNumber(const char **str); diff -r 5bd402f3762e src/virsh.c --- a/src/virsh.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/virsh.c Fri Oct 24 14:14:07 2008 +0100 @@ -47,7 +47,6 @@ #include "buf.h" #include "console.h" #include "util.h" -#include "util-lib.h" static char *progname; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] [PATCH] fix mingw compilation warning
by Jim Meyering 24 Oct '08

24 Oct '08

Building for mingw, I got this warning: libvirt.c:242: warning: control reaches end of non-void function Here's the fix: fix mingw compilation warning * src/libvirt.c (winsock_init) [HAVE_WINSOCK2_H]: Always return a value. diff --git a/src/libvirt.c b/src/libvirt.c index ca2675a..05a92d3 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -237,8 +237,7 @@ winsock_init (void) /* http://msdn2.microsoft.com/en-us/library/ms742213.aspx */ winsock_version = MAKEWORD (2, 2); err = WSAStartup (winsock_version, &winsock_data); - if (err != 0) - return -1; + return err == 0 ? 0 : -1; } #endif -- 1.6.0.2.588.g3102

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[libvirt] [PATCH] Allow changing ejectable device in domains using default qemu emulator
by Stuart Jansen 23 Oct '08

23 Oct '08

When a qemu domain is launched but an emulator is not explicitly defined, the default emulator is used. Attempts to attach ejectable devices to a domains using the default emulator fail with the error: "Error Connecting CDROM: internal error\nCannot determine QEMU argv syntax (null)". The following patch is based on similar code in qemudStartVMDaemon() and qemudBuildCommandLine(). I've tested it and it works. Honestly, though, I think this patch is just a band-aid. I'd like to supply a better patch, but I don't have enough experience to judge certain side effects. Instead of requiring functions to determine the emulator that will be used to launch the next qemu domain, qemudStartVMDaemon() should record the emulator that was used to start the current domain. It should also record the emulator's capabilities. This would make it unnecessary to call virDomainDefDefaultEmulator() in qemudDomainChangeEjectableMedia(). It would also make it possible to remove the virDomainDefDefaultEmulator() call from qemudBuildCommandLine(). However, testCompareXMLToArgvFiles() will fail because qemudBuildCommandLine() needs to know vm->def->emulator and virDomainDefParseFile() doesn't set vm->def->emulator to a default value. I don't know if this is a real problem, or if it just means the test needs to be updated. In addition, if we simply set vm->dev->emulator = strdup(virDomainDefDefaultEmulator()) in qemudStartVMDaemon() then virDomainDefFormat() will dump <emulator>...</emulator> for domains that did't actually have it explicitly defined. I don't know if this is a bug or improvement, but it is a change in behavior.

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