January 2008 - CIM - libvirt List Archives

[PATCH 0 of 2] (#2) VCPU xml generation
by Dan Smith 16 Jan '08

16 Jan '08

Same as last time, but with the asprintf() return value correctly checked, as Kaitlin pointed out.

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[PATCH 0 of 2] VCPU xml generation
by Dan Smith 16 Jan '08

16 Jan '08

We have, so far, been ignoring the vcpu bit of XML generation, mostly because we treat multiple vcpus as separate devices in the CIM world, but as a single integral value in the libvirt world. This set changes the way the xml generation code is structured to handle batches of devices, and then adds support for generating the VCPU node. It's a little strange, but I decided that allowing a given device class to modify and append the XML being generated for its class was the safest way to handle all the cases without separating things out too much. Comments on this approach are welcomed. I believe that this set will also make ModifyResource in VSMS work for VCPUs as well, since it should be able to generate updated XML with the new vcpu count after such an operation. More testing to determine if additional work will be required needs to be done.

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[PATCH 0 of 3] Check client given object pathes in ElementCapabilities provider
by Heidi Eckhart 16 Jan '08

16 Jan '08

To enable the check for the client's given object path in ElementCapabilities, changes to the ComputerSystem and AllocationCapabilities provider have been necessary.

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[PATCH] Add release information to the web content
by Dan Smith 15 Jan '08

15 Jan '08

# HG changeset patch # User Dan Smith <danms(a)us.ibm.com> # Date 1200325203 28800 # Node ID ef7305a73d2920d12193ddf132cec079e7b56135 # Parent 206060cfee965f2939d8e7b3eb790724634017de Add release information to the web content Signed-off-by: Dan Smith <danms(a)us.ibm.com> diff -r 206060cfee96 -r ef7305a73d29 doc/libvirt-cim.html --- a/doc/libvirt-cim.html Mon Jan 14 07:20:44 2008 -0800 +++ b/doc/libvirt-cim.html Mon Jan 14 07:40:03 2008 -0800 @@ -22,7 +22,23 @@ <h2><a name="News">Releases</a></h2> -<p>There have been no releases to date</p> +<p>Here is the list of official releases. Developers and people +looking for the latest features should check +the <a href="downloads.html">downloads</a> page for a snapshot of the +repository.</p> + +<h3>livirt-cim-0.1: Jan 14 2008</h3> + +<ul> + <li>Initial release</li> + <li>Focused on Xen paravirt guest support</li> +</ul> + +<h3>libcmpiutil-0.1: Nov 30 2007</h3> + +<ul> + <li>Initial release</li> +</ul> <h2><a name="Introducti">Introduction</a></h2> @@ -42,6 +58,15 @@ <h2><a name="Downloads">Downloads</a></h2> +<p>Official releases can be found on the +libvirt.org <a href="ftp://libvirt.org/libvirt-cim">FTP</a> server. +Alternatively, you can grab a +<a href="http://libvirt.org/hg/libvirt-cim/archive/tip.tar.gz">tarball</a> or +<a href="http://libvirt.org/hg/libvirt-cim/archive/tip.zip">zip</a> +file snapshot of the development repository. These snapshots will +have the latest features (and bugs).</p> + + <p>The libvirt-cim development tree can be found in the <a href="http://libvirt.org/hg">libvirt.org/hg</a> repository. </p> @@ -53,11 +78,6 @@ <p><code>$ hg clone http://libvirt.org/hg/libvirt-cim</code></p> -<p>Alternatively, you can grab a - <a href="http://libvirt.org/hg/libvirt-cim/archive/tip.tar.gz">tarball</a> or - <a href="http://libvirt.org/hg/libvirt-cim/archive/tip.zip">zip</a> - file snapshot of the repository. -</p> <h2><a name="Patches">Patches</a></h2>

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[PATCH 0 of 3] #3 - Check client given object pathes in ElementCapabilities provider
by Heidi Eckhart 15 Jan '08

15 Jan '08

To enable the check for the client's given object path in ElementCapabilities, changes to the ComputerSystem and AllocationCapabilities provider have been necessary. Diff to patch #1: - added a new function to libcmpiutil - cu_validate_ref(ref, inst) - that does the check between the system instance and the client given instance - get_domain() is now using the new libcmpiutil function - the parameter CMPIInstance **inst is now used to "configure" get_domain(); for internal usage the inst is returned and for external usage this can be ignored by setting it to NULL - validate_domain_ref() is now only an interface name for the client - removed patch unrelated changes in patch 2 - reworked logic to return instance(s) Diff to patch set #2: - removed validate_domain_ref() and made get_domain() external - fixed coding style in AllocationCapabilities - fixed inst_list to catch the returned instances - adopted changes to patch 1 and 2 to patch 3 - check for NULL connection in EC now

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[PATCH] [CU] Add function to validate a client given object path
by Heidi Eckhart 15 Jan '08

15 Jan '08

# HG changeset patch # User Heidi Eckhart <heidieck(a)linux.vnet.ibm.com> # Date 1200398044 -3600 # Node ID feaf6295a3fbc749d5c57ee29f6391880e692493 # Parent 2a52fc3c4bbcc3efe93d2943928c8d3128dca03b [CU] Add function to validate a client given object path Signed-off-by: Heidi Eckhart <heidieck(a)linux.vnet.ibm.com> diff -r 2a52fc3c4bbc -r feaf6295a3fb instance_util.c --- a/instance_util.c Thu Dec 13 11:10:59 2007 +0100 +++ b/instance_util.c Tue Jan 15 12:54:04 2008 +0100 @@ -154,6 +154,23 @@ const char *cu_compare_ref(const CMPIObj prop = NULL; out: return prop; +} + +CMPIStatus cu_validate_ref(const CMPIBroker *broker, + const CMPIObjectPath *ref, + const CMPIInstance *inst) +{ + CMPIStatus s = {CMPI_RC_OK, NULL}; + const char *prop; + + prop = cu_compare_ref(ref, inst); + if (prop != NULL) { + cu_statusf(broker, &s, + CMPI_RC_ERR_NOT_FOUND, + "No such instance (%s)", prop); + } + + return s; } CMPIStatus cu_copy_prop(const CMPIBroker *broker, diff -r 2a52fc3c4bbc -r feaf6295a3fb libcmpiutil.h --- a/libcmpiutil.h Thu Dec 13 11:10:59 2007 +0100 +++ b/libcmpiutil.h Tue Jan 15 12:54:04 2008 +0100 @@ -377,6 +377,22 @@ int inst_list_add(struct inst_list *list * or NULL if all match */ const char *cu_compare_ref(const CMPIObjectPath *ref, + const CMPIInstance *inst); + +/** + * Validate a client given reference against the system instance. + * This is done by comparing the key values of the reference + * against the key properties found in the system instance. + * + * @param broker A pointer to the current broker + * @param ref The ObjectPath to examine + * @param inst The Instance to compare + * @returns The status of the comparision: + * CMPI_RC_OK in case of match + * CMPI_RC_ERR_NOT_FOUND in case of not matching + */ +CMPIStatus cu_validate_ref(const CMPIBroker *broker, + const CMPIObjectPath *ref, const CMPIInstance *inst); #define DEFAULT_EIN(pn) \

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[PATCH 0 of 3] #2 - Check client given object pathes in ElementCapabilities provider
by Heidi Eckhart 15 Jan '08

15 Jan '08

To enable the check for the client's given object path in ElementCapabilities, changes to the ComputerSystem and AllocationCapabilities provider have been necessary. Diff to patch #1: - added a new function to libcmpiutil - cu_validate_ref(ref, inst) - that does the check between the system instance and the client given instance - get_domain() is now using the new libcmpiutil function - the parameter CMPIInstance **inst is now used to "configure" get_domain(); for internal usage the inst is returned and for external usage this can be ignored by setting it to NULL - validate_domain_ref() is now only an interface name for the client - removed patch unrelated changes in patch 2 - reworked logic to return instance(s)

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[PATCH] [CU] Add function to validate a client given object path
by Heidi Eckhart 15 Jan '08

15 Jan '08

# HG changeset patch # User Heidi Eckhart <heidieck(a)linux.vnet.ibm.com> # Date 1200043988 -3600 # Node ID 393ba1344f5be2ea42b21adea0d377de440516dc # Parent 2a52fc3c4bbcc3efe93d2943928c8d3128dca03b [CU] Add function to validate a client given object path Signed-off-by: Heidi Eckhart <heidieck(a)linux.vnet.ibm.com> diff -r 2a52fc3c4bbc -r 393ba1344f5b instance_util.c --- a/instance_util.c Thu Dec 13 11:10:59 2007 +0100 +++ b/instance_util.c Fri Jan 11 10:33:08 2008 +0100 @@ -154,6 +154,23 @@ const char *cu_compare_ref(const CMPIObj prop = NULL; out: return prop; +} + +CMPIStatus cu_validate_ref(const CMPIBroker *broker, + const CMPIObjectPath *ref, + const CMPIInstance *inst) +{ + CMPIStatus s = {CMPI_RC_OK, NULL}; + const char *prop; + + prop = cu_compare_ref(ref, inst); + if (prop != NULL) { + cu_statusf(broker, &s, + CMPI_RC_ERR_NOT_FOUND, + "No such instance (%s)", prop); + } + + return s; } CMPIStatus cu_copy_prop(const CMPIBroker *broker, diff -r 2a52fc3c4bbc -r 393ba1344f5b libcmpiutil.h --- a/libcmpiutil.h Thu Dec 13 11:10:59 2007 +0100 +++ b/libcmpiutil.h Fri Jan 11 10:33:08 2008 +0100 @@ -377,6 +377,10 @@ int inst_list_add(struct inst_list *list * or NULL if all match */ const char *cu_compare_ref(const CMPIObjectPath *ref, + const CMPIInstance *inst); + +CMPIStatus cu_validate_ref(const CMPIBroker *broker, + const CMPIObjectPath *ref, const CMPIInstance *inst); #define DEFAULT_EIN(pn) \

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[PATCH] (#2) [RFC] Add Virt_ComputerSystemModifiedIndication, which watches for changes in our guests
by Jay Gagnon 14 Jan '08

14 Jan '08

# HG changeset patch # User Jay Gagnon <grendel(a)linux.vnet.ibm.com> # Date 1200339496 18000 # Node ID 83dd6d18f98c2f43b59cbed5e025969f94a43f84 # Parent 51c57a6dabe9068f8638a6b923779085ff98b67e (#2) [RFC] Add Virt_ComputerSystemModifiedIndication, which watches for changes in our guests. Changes since last time: change free_dom_xml from int to void return type use *far* better sys_name_from_xml logic use calloc instead of malloc for allocating array get UUID for domain directly into dom_xml structure changed struct dom_xml's uuid member to suit get xml for domain directly into dom_xml structure add cleanup_domain_list function use ObjectPath from CIMOM for prefix, classname, etc instead of literals Signed-off-by: Jay Gagnon <grendel(a)linux.vnet.ibm.com> diff -r 51c57a6dabe9 -r 83dd6d18f98c src/Virt_ComputerSystemModifiedIndication.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/Virt_ComputerSystemModifiedIndication.c Mon Jan 14 14:38:16 2008 -0500 @@ -0,0 +1,410 @@ +/* + * Copyright IBM Corp. 2007 + * + * Authors: + * Jay Gagnon <grendel(a)linux.vnet.ibm.com> + * + * 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 + */ +#include <unistd.h> +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <stdlib.h> +#include <pthread.h> +#include <time.h> + +#include <cmpidt.h> +#include <cmpift.h> +#include <cmpimacs.h> + +#include <libvirt/libvirt.h> + +#include <libcmpiutil.h> +#include <misc_util.h> +#include <std_indication.h> +#include <cs_util.h> + +#include "config.h" + +#include "Virt_ComputerSystem.h" + +static const CMPIBroker *_BROKER; + +static CMPI_THREAD_TYPE lifecycle_thread_id = 0; + +enum CS_EVENTS { + CS_MODIFIED, +}; + +static pthread_cond_t lifecycle_cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t lifecycle_mutex = PTHREAD_MUTEX_INITIALIZER; +static bool lifecycle_enabled = 0; + +#ifdef CMPI_EI_VOID +# define _EI_RTYPE void +# define _EI_RET() return +#else +# define _EI_RTYPE CMPIStatus +# define _EI_RET() return (CMPIStatus){CMPI_RC_OK, NULL} +#endif + +struct dom_xml { + char uuid[VIR_UUID_STRING_BUFLEN]; + char *xml; +}; + +struct ind_args { + CMPIContext *context; + const CMPIObjectPath *ref; +}; + +static void free_dom_xml (struct dom_xml dom) +{ + free(dom.xml); +} + +static void free_ind_args (struct ind_args args) +{ + /* Nothing to do right now, but if this ends up with + something that does need to be freed I want everything in place. */ +} + +static void cleanup_domain_list(virDomainPtr *list, int size) +{ + int i; + + for (i = 0; i < size; i++) { + virDomainFree(list[i]); + } +} + +static bool _lifecycle_indication(const CMPIBroker *broker, + const CMPIContext *ctx, + CMPIInstance *mod_inst, + char *prefix, + char *ns) +{ + CMPIObjectPath *ind_op; + CMPIInstance *ind; + CMPIStatus s; + + ind = get_typed_instance(broker, + prefix, + "ComputerSystemModifiedIndication", + ns); + if (ind == NULL) { + CU_DEBUG("Failed to create ind"); + return false; + } + + ind_op = CMGetObjectPath(ind, &s); + if (s.rc != CMPI_RC_OK) { + CU_DEBUG("Failed to get ind_op"); + return false; + } + + CMSetProperty(ind, "PreviousInstance", + (CMPIValue *)&mod_inst, CMPI_instance); + + printf("Delivering Indication: %s\n", + CMGetCharPtr(CMObjectPathToString(ind_op, NULL))); + + CBDeliverIndication(_BROKER, + ctx, + CIM_VIRT_NS, + ind); + + return true; +} + +static bool wait_for_event(void) +{ + struct timespec timeout; + int ret; + + + clock_gettime(CLOCK_REALTIME, &timeout); + timeout.tv_sec += 3; + + ret = pthread_cond_timedwait(&lifecycle_cond, + &lifecycle_mutex, + &timeout); + + return true; +} + +static char *sys_name_from_xml(char *xml) +{ + char *tmp = NULL; + char *name = NULL; + int rc; + + tmp = strstr(xml, "<name>"); + if (tmp == NULL) + goto out; + + rc = sscanf(tmp, "<name>%a[^<]s</name>", &name); + if (rc != 1) + name = NULL; + + out: + return name; +} + +static bool async_ind(CMPIContext *context, + virConnectPtr conn, + struct dom_xml prev_dom, + char *prefix, + char *ns) +{ + bool rc; + char *name = NULL; + CMPIInstance *mod_inst; + + /* Where should we be getting the namespace and classname? */ + mod_inst = get_typed_instance(_BROKER, + prefix, + "ComputerSystem", + ns); + + name = sys_name_from_xml(prev_dom.xml); + CU_DEBUG("Name for system: '%s'", name); + if (name == NULL) { + rc = false; + goto out; + } + + CMSetProperty(mod_inst, "Name", + (CMPIValue *)name, CMPI_chars); + CMSetProperty(mod_inst, "UUID", + (CMPIValue *)prev_dom.uuid, CMPI_chars); + + rc = _lifecycle_indication(_BROKER, context, mod_inst, prefix, ns); + + out: + free(name); + return rc; +} + +static CMPIStatus doms_to_xml(struct dom_xml **dom_xml_list, + virDomainPtr *dom_ptr_list, + int dom_ptr_count) +{ + int i; + int rc; + CMPIStatus s = {CMPI_RC_OK, NULL}; + + *dom_xml_list = calloc(dom_ptr_count, sizeof(struct dom_xml)); + for (i = 0; i < dom_ptr_count; i++) { + rc = virDomainGetUUIDString(dom_ptr_list[i], + (*dom_xml_list)[i].uuid); + if (rc == -1) { + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "Failed to get UUID"); + /* If any domain fails, we fail. */ + break; + } + + (*dom_xml_list)[i].xml = virDomainGetXMLDesc(dom_ptr_list[i], + 0); + if ((*dom_xml_list)[i].xml == NULL) { + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "Failed to get xml desc"); + break; + } + } + + return s; +} + +static bool dom_changed(struct dom_xml prev_dom, + struct dom_xml *cur_xml, + int cur_count) +{ + int i; + bool ret = false; + + for (i = 0; i < cur_count; i++) { + if (strcmp(cur_xml[i].uuid, prev_dom.uuid) != 0) + continue; + + if (strcmp(cur_xml[i].xml, prev_dom.xml) != 0) + ret = true; + + break; + } + + return ret; +} + +static CMPI_THREAD_RETURN lifecycle_thread(void *params) +{ + int i; + int cur_count; + int prev_count; + char *ns = NULL; + virConnectPtr conn; + char *prefix = NULL; + virDomainPtr *tmp_list; + CMPIContext *context = NULL; + struct dom_xml *cur_xml = NULL; + struct dom_xml *prev_xml = NULL; + CMPIStatus s = {CMPI_RC_OK, NULL}; + struct ind_args *args = (struct ind_args *)params; + + context = args->context; + prefix = class_prefix_name(CLASSNAME(args->ref)); + ns = NAMESPACE(args->ref); + + conn = connect_by_classname(_BROKER, CLASSNAME(args->ref), &s); + + pthread_mutex_lock(&lifecycle_mutex); + + CBAttachThread(_BROKER, context); + + prev_count = get_domain_list(conn, &tmp_list); + s = doms_to_xml(&prev_xml, tmp_list, prev_count); + /* TODO: status check */ + cleanup_domain_list(tmp_list, prev_count); + + CU_DEBUG("entering event loop"); + while (lifecycle_enabled) { + bool modified; + + cur_count = get_domain_list(conn, &tmp_list); + s = doms_to_xml(&cur_xml, tmp_list, cur_count); + /* TODO: status check */ + cleanup_domain_list(tmp_list, cur_count); + + for (i = 0; i < prev_count; i++) { + modified = dom_changed(prev_xml[i], cur_xml, cur_count); + if (modified) { + CU_DEBUG("Domain '%s' modified.", prev_xml[i].uuid); + async_ind(context, conn, prev_xml[i], prefix, ns); + } + free_dom_xml(prev_xml[i]); + } + + free(prev_xml); + prev_xml = cur_xml; + wait_for_event(); + } + CU_DEBUG("exiting event loop"); + + pthread_mutex_unlock(&lifecycle_mutex); + free_ind_args(*args); + free(prefix); + /* Should I free args as well here, since it's malloced in activate? */ + + return NULL; +} + +static CMPIStatus ActivateFilter(CMPIIndicationMI* mi, + const CMPIContext* ctx, + const CMPISelectExp* se, + const char *ns, + const CMPIObjectPath* op, + CMPIBoolean first) +{ + CMPIStatus s = {CMPI_RC_OK, NULL}; + struct ind_args *args = malloc(sizeof(struct ind_args)); + + CU_DEBUG("ActivateFilter"); + + if (CMIsNullObject(op)) { + cu_statusf(_BROKER, &s, + CMPI_RC_ERR_FAILED, + "No ObjectPath given"); + goto out; + } + args->ref = op; + + if (lifecycle_thread_id == 0) { + args->context = CBPrepareAttachThread(_BROKER, ctx); + + lifecycle_thread_id = _BROKER->xft->newThread(lifecycle_thread, + args, + 0); + } + + out: + return s; +} + +static CMPIStatus DeActivateFilter(CMPIIndicationMI* mi, + const CMPIContext* ctx, + const CMPISelectExp* se, + const char *ns, + const CMPIObjectPath* op, + CMPIBoolean last) +{ + return (CMPIStatus){CMPI_RC_OK, NULL}; +} + +static _EI_RTYPE EnableIndications(CMPIIndicationMI* mi, + const CMPIContext *ctx) +{ + pthread_mutex_lock(&lifecycle_mutex); + lifecycle_enabled = true; + pthread_mutex_unlock(&lifecycle_mutex); + + CU_DEBUG("ComputerSystemModifiedIndication enabled"); + + _EI_RET(); +} + +static _EI_RTYPE DisableIndications(CMPIIndicationMI* mi, + const CMPIContext *ctx) +{ + pthread_mutex_lock(&lifecycle_mutex); + lifecycle_enabled = false; + pthread_mutex_unlock(&lifecycle_mutex); + + CU_DEBUG("ComputerSystemModifiedIndication disabled"); + + _EI_RET(); +} + +static CMPIStatus trigger_indication(const CMPIContext *context) +{ + pthread_cond_signal(&lifecycle_cond); + CU_DEBUG("CSMI triggered"); + return(CMPIStatus){CMPI_RC_OK, NULL}; +} + +static struct std_indication_handler csmi = { + .raise_fn = NULL, + .trigger_fn = trigger_indication, +}; + +DEFAULT_IND_CLEANUP(); +DEFAULT_AF(); +DEFAULT_MP(); + +STDI_IndicationMIStub(, Virt_ComputerSystemModifiedIndicationProvider, + _BROKER, libvirt_cim_init(), &csmi); + +/* + * Local Variables: + * mode: C + * c-set-style: "K&R" + * tab-width: 8 + * c-basic-offset: 8 + * indent-tabs-mode: nil + * End: + */

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[PATCH] Fix build of xml_parse_test
by Dan Smith 14 Jan '08

14 Jan '08

# HG changeset patch # User Dan Smith <danms(a)us.ibm.com> # Date 1200334940 28800 # Node ID 4b720e825e01217f441047b3eed0b25aa1c85c95 # Parent 4909cfcdc6288cd20d8c06a54b1fd458d8d298f3 Fix build of xml_parse_test to include the in-tree libxkutil, instead of the one installed on the system Signed-off-by: Dan Smith <danms(a)us.ibm.com> diff -r 4909cfcdc628 -r 4b720e825e01 libxkutil/Makefile.am --- a/libxkutil/Makefile.am Mon Jan 14 10:21:57 2008 -0800 +++ b/libxkutil/Makefile.am Mon Jan 14 10:22:20 2008 -0800 @@ -16,5 +16,6 @@ noinst_PROGRAMS = xml_parse_test noinst_PROGRAMS = xml_parse_test xml_parse_test_SOURCES = xml_parse_test.c -#xml_parse_test_HEADERS = device_parsing.h -xml_parse_test_LDADD = -lvirt -lxkutil +xml_parse_test_LDADD = -lvirt +xml_parse_test_LDFLAGS = libxkutil.la +xml_parse_test_DEPENDENCIES = libxkutil.la

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