1
0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-23 21:34:54 +03:00

qemu: add helper for getting full FSInfo

This function adds the complete filesystem information returned by the
qemu agent to an array of typed parameters with field names intended to
to be returned by virDomainGetGuestInfo()

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Jonathon Jongsma 2019-08-23 11:31:21 -05:00 committed by Michal Privoznik
parent ff89403050
commit a68ed9fc42
3 changed files with 286 additions and 13 deletions

View File

@ -2178,6 +2178,97 @@ qemuAgentGetFSInfo(qemuAgentPtr mon,
return ret;
}
int
qemuAgentGetFSInfoParams(qemuAgentPtr mon,
virTypedParameterPtr *params,
int *nparams, int *maxparams,
virDomainDefPtr vmdef)
{
int ret = -1;
qemuAgentFSInfoPtr *fsinfo = NULL;
size_t i, j;
int nfs;
if ((nfs = qemuAgentGetFSInfoInternal(mon, &fsinfo, vmdef)) < 0)
return -1;
if (virTypedParamsAddUInt(params, nparams, maxparams,
"fs.count", nfs) < 0)
goto cleanup;
for (i = 0; i < nfs; i++) {
char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.name", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, fsinfo[i]->name) < 0)
goto cleanup;
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.mountpoint", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, fsinfo[i]->mountpoint) < 0)
goto cleanup;
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.fstype", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, fsinfo[i]->fstype) < 0)
goto cleanup;
/* disk usage values are not returned by older guest agents, so
* only add the params if the value is set */
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.total-bytes", i);
if (fsinfo[i]->total_bytes != -1 &&
virTypedParamsAddULLong(params, nparams, maxparams,
param_name, fsinfo[i]->total_bytes) < 0)
goto cleanup;
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.used-bytes", i);
if (fsinfo[i]->used_bytes != -1 &&
virTypedParamsAddULLong(params, nparams, maxparams,
param_name, fsinfo[i]->used_bytes) < 0)
goto cleanup;
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.count", i);
if (virTypedParamsAddUInt(params, nparams, maxparams,
param_name, fsinfo[i]->ndisks) < 0)
goto cleanup;
for (j = 0; j < fsinfo[i]->ndisks; j++) {
qemuAgentDiskInfoPtr d = fsinfo[i]->disks[j];
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.%zu.alias", i, j);
if (d->alias &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, d->alias) < 0)
goto cleanup;
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.%zu.serial", i, j);
if (d->serial &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, d->serial) < 0)
goto cleanup;
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"fs.%zu.disk.%zu.device", i, j);
if (d->devnode &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, d->devnode) < 0)
goto cleanup;
}
}
ret = nfs;
cleanup:
for (i = 0; i < nfs; i++)
qemuAgentFSInfoFree(fsinfo[i]);
VIR_FREE(fsinfo);
return ret;
}
/*
* qemuAgentGetInterfaces:
* @mon: Agent monitor

View File

@ -74,6 +74,11 @@ int qemuAgentFSThaw(qemuAgentPtr mon);
int qemuAgentGetFSInfo(qemuAgentPtr mon, virDomainFSInfoPtr **info,
virDomainDefPtr vmdef);
int qemuAgentGetFSInfoParams(qemuAgentPtr mon,
virTypedParameterPtr *params,
int *nparams, int *maxparams,
virDomainDefPtr vmdef);
int qemuAgentSuspend(qemuAgentPtr mon,
unsigned int target);

View File

@ -168,38 +168,45 @@ testQemuAgentFSTrim(const void *data)
static int
testQemuAgentGetFSInfo(const void *data)
testQemuAgentGetFSInfoCommon(virDomainXMLOptionPtr xmlopt,
qemuMonitorTestPtr *test,
virDomainDefPtr *def)
{
virDomainXMLOptionPtr xmlopt = (virDomainXMLOptionPtr)data;
qemuMonitorTestPtr test = qemuMonitorTestNewAgent(xmlopt);
int ret = -1;
char *domain_filename = NULL;
virDomainDefPtr def = NULL;
virDomainFSInfoPtr *info = NULL;
int ret = -1, ninfo = 0, i;
qemuMonitorTestPtr ret_test = NULL;
virDomainDefPtr ret_def = NULL;
if (!test)
if (!test || !def)
return -1;
if (!(ret_test = qemuMonitorTestNewAgent(xmlopt)))
return -1;
if (virAsprintf(&domain_filename, "%s/qemuagentdata/fsinfo.xml",
abs_srcdir) < 0)
goto cleanup;
if (!(def = virDomainDefParseFile(domain_filename, driver.caps, xmlopt,
NULL, VIR_DOMAIN_DEF_PARSE_INACTIVE)))
if (!(ret_def = virDomainDefParseFile(domain_filename, driver.caps, xmlopt,
NULL, VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto cleanup;
if (qemuMonitorTestAddAgentSyncResponse(test) < 0)
if (qemuMonitorTestAddAgentSyncResponse(ret_test) < 0)
goto cleanup;
if (qemuMonitorTestAddItem(test, "guest-get-fsinfo",
if (qemuMonitorTestAddItem(ret_test, "guest-get-fsinfo",
"{\"return\": ["
" {\"name\": \"sda1\", \"mountpoint\": \"/\","
" \"total-bytes\":952840192,"
" \"used-bytes\":229019648,"
" \"disk\": ["
" {\"bus-type\": \"ide\","
" {\"serial\": \"ARBITRARYSTRING\","
" \"bus-type\": \"ide\","
" \"bus\": 1, \"unit\": 0,"
" \"pci-controller\": {"
" \"bus\": 0, \"slot\": 1,"
" \"domain\": 0, \"function\": 1},"
" \"dev\": \"/dev/sda1\","
" \"target\": 0}],"
" \"type\": \"ext4\"},"
" {\"name\": \"dm-1\","
@ -221,6 +228,31 @@ testQemuAgentGetFSInfo(const void *data)
" {\"name\": \"sdb1\","
" \"mountpoint\": \"/mnt/disk\","
" \"disk\": [], \"type\": \"xfs\"}]}") < 0)
goto cleanup;
VIR_STEAL_PTR(*test, ret_test);
VIR_STEAL_PTR(*def, ret_def);
ret = 0;
cleanup:
VIR_FREE(domain_filename);
if (ret_test)
qemuMonitorTestFree(ret_test);
virDomainDefFree(ret_def);
return ret;
}
static int
testQemuAgentGetFSInfo(const void *data)
{
virDomainXMLOptionPtr xmlopt = (virDomainXMLOptionPtr)data;
qemuMonitorTestPtr test = NULL;
virDomainDefPtr def = NULL;
virDomainFSInfoPtr *info = NULL;
int ret = -1, ninfo = 0, i;
if (testQemuAgentGetFSInfoCommon(xmlopt, &test, &def) < 0)
goto cleanup;
if ((ninfo = qemuAgentGetFSInfo(qemuMonitorTestGetAgent(test),
@ -295,7 +327,151 @@ testQemuAgentGetFSInfo(const void *data)
for (i = 0; i < ninfo; i++)
virDomainFSInfoFree(info[i]);
VIR_FREE(info);
VIR_FREE(domain_filename);
virDomainDefFree(def);
qemuMonitorTestFree(test);
return ret;
}
static int
testQemuAgentGetFSInfoParams(const void *data)
{
virDomainXMLOptionPtr xmlopt = (virDomainXMLOptionPtr)data;
qemuMonitorTestPtr test = NULL;
virDomainDefPtr def = NULL;
virTypedParameterPtr params = NULL;
int nparams = 0, maxparams = 0;
int ret = -1;
unsigned int count;
const char *name, *mountpoint, *fstype, *alias, *serial;
unsigned int diskcount;
unsigned long long bytesused, bytestotal;
const char *alias2;
if (testQemuAgentGetFSInfoCommon(xmlopt, &test, &def) < 0)
goto cleanup;
if (qemuAgentGetFSInfoParams(qemuMonitorTestGetAgent(test),
&params, &nparams, &maxparams, def) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"Failed to execute qemuAgentGetFSInfoParams()");
goto cleanup;
}
if (virTypedParamsGetUInt(params, nparams, "fs.count", &count) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"expected filesystem count");
goto cleanup;
}
if (count != 3) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"expected 3 filesystems information, got %d", count);
goto cleanup;
}
if (virTypedParamsGetString(params, nparams, "fs.2.name", &name) < 0 ||
virTypedParamsGetString(params, nparams, "fs.2.mountpoint", &mountpoint) < 0 ||
virTypedParamsGetString(params, nparams, "fs.2.fstype", &fstype) < 0 ||
virTypedParamsGetULLong(params, nparams, "fs.2.used-bytes", &bytesused) <= 0 ||
virTypedParamsGetULLong(params, nparams, "fs.2.total-bytes", &bytestotal) <= 0 ||
virTypedParamsGetUInt(params, nparams, "fs.2.disk.count", &diskcount) < 0 ||
virTypedParamsGetString(params, nparams, "fs.2.disk.0.alias", &alias) < 0 ||
virTypedParamsGetString(params, nparams, "fs.2.disk.0.serial", &serial) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Missing an expected parameter for sda1 (%s,%s)",
name, alias);
goto cleanup;
}
if (STRNEQ(name, "sda1") ||
STRNEQ(mountpoint, "/") ||
STRNEQ(fstype, "ext4") ||
bytesused != 229019648 ||
bytestotal != 952840192 ||
diskcount != 1 ||
STRNEQ(alias, "hdc") ||
STRNEQ(serial, "ARBITRARYSTRING")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"unexpected filesystems information returned for sda1 (%s,%s)",
name, alias);
goto cleanup;
}
if (virTypedParamsGetString(params, nparams, "fs.1.name", &name) < 0 ||
virTypedParamsGetString(params, nparams, "fs.1.mountpoint", &mountpoint) < 0 ||
virTypedParamsGetString(params, nparams, "fs.1.fstype", &fstype) < 0 ||
virTypedParamsGetULLong(params, nparams, "fs.1.used-bytes", &bytesused) == 1 ||
virTypedParamsGetULLong(params, nparams, "fs.1.total-bytes", &bytestotal) == 1 ||
virTypedParamsGetUInt(params, nparams, "fs.1.disk.count", &diskcount) < 0 ||
virTypedParamsGetString(params, nparams, "fs.1.disk.0.alias", &alias) < 0 ||
virTypedParamsGetString(params, nparams, "fs.1.disk.1.alias", &alias2) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Incorrect parameters for dm-1 (%s,%s)",
name, alias);
goto cleanup;
}
if (STRNEQ(name, "dm-1") ||
STRNEQ(mountpoint, "/opt") ||
STRNEQ(fstype, "vfat") ||
diskcount != 2 ||
STRNEQ(alias, "vda") ||
STRNEQ(alias2, "vdb")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"unexpected filesystems information returned for dm-1 (%s,%s)",
name, alias);
goto cleanup;
}
alias = NULL;
if (virTypedParamsGetString(params, nparams, "fs.0.name", &name) < 0 ||
virTypedParamsGetString(params, nparams, "fs.0.mountpoint", &mountpoint) < 0 ||
virTypedParamsGetString(params, nparams, "fs.0.fstype", &fstype) < 0 ||
virTypedParamsGetULLong(params, nparams, "fs.0.used-bytes", &bytesused) == 1 ||
virTypedParamsGetULLong(params, nparams, "fs.0.total-bytes", &bytestotal) == 1 ||
virTypedParamsGetUInt(params, nparams, "fs.0.disk.count", &diskcount) < 0 ||
virTypedParamsGetString(params, nparams, "fs.0.disk.0.alias", &alias) == 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Incorrect parameters for sdb1 (%s,%s)",
name, alias);
goto cleanup;
}
if (STRNEQ(name, "sdb1") ||
STRNEQ(mountpoint, "/mnt/disk") ||
STRNEQ(fstype, "xfs") ||
diskcount != 0 ||
alias != NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"unexpected filesystems information returned for sdb1 (%s,%s)",
name, alias);
goto cleanup;
}
if (qemuMonitorTestAddAgentSyncResponse(test) < 0)
goto cleanup;
if (qemuMonitorTestAddItem(test, "guest-get-fsinfo",
"{\"error\":"
" {\"class\":\"CommandDisabled\","
" \"desc\":\"The command guest-get-fsinfo "
"has been disabled for "
"this instance\","
" \"data\":{\"name\":\"guest-get-fsinfo\"}"
" }"
"}") < 0)
goto cleanup;
if (qemuAgentGetFSInfoParams(qemuMonitorTestGetAgent(test), &params,
&nparams, &maxparams, def) != -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"agent get-fsinfo command should have failed");
goto cleanup;
}
ret = 0;
cleanup:
virTypedParamsFree(params, nparams);
virDomainDefFree(def);
qemuMonitorTestFree(test);
return ret;
@ -1268,6 +1444,7 @@ mymain(void)
DO_TEST(FSFreeze);
DO_TEST(FSThaw);
DO_TEST(FSTrim);
DO_TEST(GetFSInfoParams);
DO_TEST(GetFSInfo);
DO_TEST(Suspend);
DO_TEST(Shutdown);