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Merge all return paths from UML driver APIs

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This commit is contained in:
Daniel P. Berrange 2008-12-04 21:13:58 +00:00
parent 965c1bfee4
commit 773c8bac35
3 changed files with 251 additions and 169 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
Thu Dec 4 21:13:41 GMT 2008 Daniel P. Berrange <berrange@redhat.com>
* Makefile.maint: Add umlError function
* src/uml_driver.c: Merge all return paths from driver APIs
Thu Dec 4 21:11:41 GMT 2008 Daniel P. Berrange <berrange@redhat.com>
* src/lxc_conf.h: Add driver lock variable

1
Makefile.maint
View File

@ -355,6 +355,7 @@ msg_gen_function += openvzError
msg_gen_function += virDomainReportError
msg_gen_function += virReportErrorHelper
msg_gen_function += lxcError
msg_gen_function += umlError
# Uncomment the following and run "make syntax-check" to see diagnostics
# that are not yet marked for translation, but that need to be rewritten

414
src/uml_driver.c
View File

@ -883,7 +883,7 @@ static virDrvOpenStatus umlOpen(virConnectPtr conn,
}
static int umlClose(virConnectPtr conn) {
/*struct uml_driver *driver = (struct uml_driver *)conn->privateData;*/
/*struct uml_driver *driver = conn->privateData;*/
conn->privateData = NULL;
@ -904,11 +904,9 @@ static char *umlGetCapabilities(virConnectPtr conn) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
char *xml;
if ((xml = virCapabilitiesFormatXML(driver->caps)) == NULL) {
if ((xml = virCapabilitiesFormatXML(driver->caps)) == NULL)
umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY,
"%s", _("failed to allocate space for capabilities support"));
return NULL;
}
return xml;
}
@ -922,11 +920,12 @@ umlNodeGetCellsFreeMemory(virConnectPtr conn,
int maxCells)
{
int n, lastCell, numCells;
int ret = -1;
if (numa_available() < 0) {
umlReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT,
"%s", _("NUMA not supported on this host"));
return -1;
goto cleanup;
}
lastCell = startCell + maxCells - 1;
if (lastCell > numa_max_node())
@ -937,22 +936,27 @@ umlNodeGetCellsFreeMemory(virConnectPtr conn,
if (numa_node_size64(n, &mem) < 0) {
umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("Failed to query NUMA free memory"));
return -1;
goto cleanup;
}
freeMems[numCells++] = mem;
}
return numCells;
ret = numCells;
cleanup:
return ret;
}
static unsigned long long
umlNodeGetFreeMemory (virConnectPtr conn)
{
unsigned long long freeMem = 0;
unsigned long long ret = -1;
int n;
if (numa_available() < 0) {
umlReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT,
"%s", _("NUMA not supported on this host"));
return -1;
goto cleanup;
}
for (n = 0 ; n <= numa_max_node() ; n++) {
@ -960,12 +964,14 @@ umlNodeGetFreeMemory (virConnectPtr conn)
if (numa_node_size64(n, &mem) < 0) {
umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("Failed to query NUMA free memory"));
return -1;
goto cleanup;
}
freeMem += mem;
}
ret = freeMem;
return freeMem;
cleanup:
return ret;
}
#endif
@ -1009,46 +1015,57 @@ static int umlGetProcessInfo(unsigned long long *cpuTime, int pid) {
static virDomainPtr umlDomainLookupByID(virConnectPtr conn,
int id) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
virDomainObjPtr vm = virDomainFindByID(&driver->domains, id);
virDomainPtr dom;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainFindByID(&driver->domains, id);
if (!vm) {
umlReportError(conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL);
return NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
cleanup:
return dom;
}
static virDomainPtr umlDomainLookupByUUID(virConnectPtr conn,
const unsigned char *uuid) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, uuid);
virDomainPtr dom;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainFindByUUID(&driver->domains, uuid);
if (!vm) {
umlReportError(conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL);
return NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
cleanup:
return dom;
}
static virDomainPtr umlDomainLookupByName(virConnectPtr conn,
const char *name) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
virDomainObjPtr vm = virDomainFindByName(&driver->domains, name);
virDomainPtr dom;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainFindByName(&driver->domains, name);
if (!vm) {
umlReportError(conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL);
return NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
cleanup:
return dom;
}
@ -1092,7 +1109,7 @@ umlGetHostname (virConnectPtr conn)
}
static int umlListDomains(virConnectPtr conn, int *ids, int nids) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
struct uml_driver *driver = conn->privateData;
int got = 0, i;
for (i = 0 ; i < driver->domains.count && got < nids ; i++)
@ -1102,7 +1119,7 @@ static int umlListDomains(virConnectPtr conn, int *ids, int nids) {
return got;
}
static int umlNumDomains(virConnectPtr conn) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
struct uml_driver *driver = conn->privateData;
int n = 0, i;
for (i = 0 ; i < driver->domains.count ; i++)
@ -1113,21 +1130,20 @@ static int umlNumDomains(virConnectPtr conn) {
}
static virDomainPtr umlDomainCreate(virConnectPtr conn, const char *xml,
unsigned int flags ATTRIBUTE_UNUSED) {
struct uml_driver *driver = conn->privateData;
virDomainDefPtr def;
virDomainObjPtr vm;
virDomainPtr dom;
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
virDomainPtr dom = NULL;
if (!(def = virDomainDefParseString(conn, driver->caps, xml)))
return NULL;
goto cleanup;
vm = virDomainFindByName(&driver->domains, def->name);
if (vm) {
umlReportError(conn, NULL, NULL, VIR_ERR_OPERATION_FAILED,
_("domain '%s' is already defined"),
def->name);
virDomainDefFree(def);
return NULL;
goto cleanup;
}
vm = virDomainFindByUUID(&driver->domains, def->uuid);
if (vm) {
@ -1137,168 +1153,198 @@ static virDomainPtr umlDomainCreate(virConnectPtr conn, const char *xml,
umlReportError(conn, NULL, NULL, VIR_ERR_OPERATION_FAILED,
_("domain with uuid '%s' is already defined"),
uuidstr);
virDomainDefFree(def);
return NULL;
goto cleanup;
}
if (!(vm = virDomainAssignDef(conn,
&driver->domains,
def))) {
virDomainDefFree(def);
return NULL;
}
def)))
goto cleanup;
def = NULL;
if (umlStartVMDaemon(conn, driver, vm) < 0) {
virDomainRemoveInactive(&driver->domains,
vm);
return NULL;
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
cleanup:
virDomainDefFree(def);
return dom;
}
static int umlDomainShutdown(virDomainPtr dom) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByID(&driver->domains, dom->id);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
char *info = NULL;
int ret = -1;
vm = virDomainFindByID(&driver->domains, dom->id);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
_("no domain with matching id %d"), dom->id);
return -1;
goto cleanup;
}
#if 0
if (umlMonitorCommand(driver, vm, "system_powerdown", &info) < 0) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED,
"%s", _("shutdown operation failed"));
return -1;
goto cleanup;
}
ret = 0;
#endif
VIR_FREE(info);
return 0;
cleanup:
VIR_FREE(info);
return ret;
}
static int umlDomainDestroy(virDomainPtr dom) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByID(&driver->domains, dom->id);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByID(&driver->domains, dom->id);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
_("no domain with matching id %d"), dom->id);
return -1;
goto cleanup;
}
umlShutdownVMDaemon(dom->conn, driver, vm);
if (!vm->persistent)
if (!vm->persistent) {
virDomainRemoveInactive(&driver->domains,
vm);
vm = NULL;
}
ret = 0;
return 0;
cleanup:
return ret;
}
static char *umlDomainGetOSType(virDomainPtr dom) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
char *type;
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
char *type = NULL;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return NULL;
goto cleanup;
}
if (!(type = strdup(vm->def->os.type))) {
if (!(type = strdup(vm->def->os.type)))
umlReportError(dom->conn, dom, NULL, VIR_ERR_NO_MEMORY,
"%s", _("failed to allocate space for ostype"));
return NULL;
}
cleanup:
return type;
}
/* Returns max memory in kb, 0 if error */
static unsigned long umlDomainGetMaxMemory(virDomainPtr dom) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
unsigned long ret = 0;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
return 0;
_("no domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
ret = vm->def->maxmem;
return vm->def->maxmem;
cleanup:
return ret;
}
static int umlDomainSetMaxMemory(virDomainPtr dom, unsigned long newmax) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
return -1;
goto cleanup;
}
if (newmax < vm->def->memory) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_ARG,
"%s", _("cannot set max memory lower than current memory"));
return -1;
goto cleanup;
}
vm->def->maxmem = newmax;
return 0;
ret = 0;
cleanup:
return ret;
}
static int umlDomainSetMemory(virDomainPtr dom, unsigned long newmem) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
return -1;
goto cleanup;
}
if (virDomainIsActive(vm)) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_NO_SUPPORT,
"%s", _("cannot set memory of an active domain"));
return -1;
goto cleanup;
}
if (newmem > vm->def->maxmem) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_ARG,
"%s", _("cannot set memory higher than max memory"));
return -1;
goto cleanup;
}
vm->def->memory = newmem;
return 0;
ret = 0;
cleanup:
return ret;
}
static int umlDomainGetInfo(virDomainPtr dom,
virDomainInfoPtr info) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return -1;
"%s", _("no domain with matching uuid"));
goto cleanup;
}
info->state = vm->state;
@ -1307,38 +1353,48 @@ static int umlDomainGetInfo(virDomainPtr dom,
info->cpuTime = 0;
} else {
if (umlGetProcessInfo(&(info->cpuTime), vm->pid) < 0) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, ("cannot read cputime for domain"));
return -1;
umlReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED,
"%s", _("cannot read cputime for domain"));
goto cleanup;
}
}
info->maxMem = vm->def->maxmem;
info->memory = vm->def->memory;
info->nrVirtCpu = vm->def->vcpus;
return 0;
ret = 0;
cleanup:
return ret;
}
static char *umlDomainDumpXML(virDomainPtr dom,
int flags ATTRIBUTE_UNUSED) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
char *ret = NULL;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return NULL;
goto cleanup;
}
return virDomainDefFormat(dom->conn,
(flags & VIR_DOMAIN_XML_INACTIVE) && vm->newDef ?
vm->newDef : vm->def,
flags);
ret = virDomainDefFormat(dom->conn,
(flags & VIR_DOMAIN_XML_INACTIVE) && vm->newDef ?
vm->newDef : vm->def,
flags);
cleanup:
return ret;
}
static int umlListDefinedDomains(virConnectPtr conn,
char **const names, int nnames) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
struct uml_driver *driver = conn->privateData;
int got = 0, i;
for (i = 0 ; i < driver->domains.count && got < nnames ; i++) {
@ -1360,7 +1416,7 @@ static int umlListDefinedDomains(virConnectPtr conn,
}
static int umlNumDefinedDomains(virConnectPtr conn) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
struct uml_driver *driver = conn->privateData;
int n = 0, i;
for (i = 0 ; i < driver->domains.count ; i++)
@ -1372,34 +1428,38 @@ static int umlNumDefinedDomains(virConnectPtr conn) {
static int umlDomainStart(virDomainPtr dom) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return -1;
goto cleanup;
}
return umlStartVMDaemon(dom->conn, driver, vm);
ret = umlStartVMDaemon(dom->conn, driver, vm);
cleanup:
return ret;
}
static virDomainPtr umlDomainDefine(virConnectPtr conn, const char *xml) {
struct uml_driver *driver = (struct uml_driver *)conn->privateData;
struct uml_driver *driver = conn->privateData;
virDomainDefPtr def;
virDomainObjPtr vm;
virDomainPtr dom;
virDomainPtr dom = NULL;
if (!(def = virDomainDefParseString(conn, driver->caps, xml)))
return NULL;
goto cleanup;
if (!(vm = virDomainAssignDef(conn,
&driver->domains,
def))) {
virDomainDefFree(def);
return NULL;
}
def)))
goto cleanup;
def = NULL;
vm->persistent = 1;
if (virDomainSaveConfig(conn,
@ -1407,66 +1467,77 @@ static virDomainPtr umlDomainDefine(virConnectPtr conn, const char *xml) {
vm->newDef ? vm->newDef : vm->def) < 0) {
virDomainRemoveInactive(&driver->domains,
vm);
return NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
cleanup:
virDomainDefFree(def);
return dom;
}
static int umlDomainUndefine(virDomainPtr dom) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return -1;
goto cleanup;
}
if (virDomainIsActive(vm)) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot delete active domain"));
return -1;
goto cleanup;
}
if (!vm->persistent) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot undefine transient domain"));
return -1;
goto cleanup;
}
if (virDomainDeleteConfig(dom->conn, driver->configDir, driver->autostartDir, vm) < 0)
return -1;
goto cleanup;
virDomainRemoveInactive(&driver->domains,
vm);
ret = 0;
return 0;
cleanup:
return ret;
}
static int umlDomainGetAutostart(virDomainPtr dom,
int *autostart) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return -1;
goto cleanup;
}
*autostart = vm->autostart;
ret = 0;
return 0;
cleanup:
return ret;
}
static int umlDomainSetAutostart(virDomainPtr dom,
int autostart) {
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
@ -1474,51 +1545,50 @@ static int umlDomainSetAutostart(virDomainPtr dom,
if (!vm) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
"%s", _("no domain with matching uuid"));
return -1;
goto cleanup;
}
if (!vm->persistent) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot set autostart for transient domain"));
return -1;
goto cleanup;
}
autostart = (autostart != 0);
if (vm->autostart == autostart)
return 0;
if ((configFile = virDomainConfigFile(dom->conn, driver->configDir, vm->def->name)) == NULL)
goto cleanup;
if ((autostartLink = virDomainConfigFile(dom->conn, driver->autostartDir, vm->def->name)) == NULL)
goto cleanup;
if (autostart) {
int err;
if ((err = virFileMakePath(driver->autostartDir))) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("cannot create autostart directory %s: %s"),
driver->autostartDir, strerror(err));
if (vm->autostart != autostart) {
if ((configFile = virDomainConfigFile(dom->conn, driver->configDir, vm->def->name)) == NULL)
goto cleanup;
if ((autostartLink = virDomainConfigFile(dom->conn, driver->autostartDir, vm->def->name)) == NULL)
goto cleanup;
if (autostart) {
int err;
if ((err = virFileMakePath(driver->autostartDir))) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("cannot create autostart directory %s: %s"),
driver->autostartDir, strerror(err));
goto cleanup;
}
if (symlink(configFile, autostartLink) < 0) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("Failed to create symlink '%s to '%s': %s"),
autostartLink, configFile, strerror(errno));
goto cleanup;
}
} else {
if (unlink(autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("Failed to delete symlink '%s': %s"),
autostartLink, strerror(errno));
goto cleanup;
}
}
if (symlink(configFile, autostartLink) < 0) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("Failed to create symlink '%s to '%s': %s"),
autostartLink, configFile, strerror(errno));
goto cleanup;
}
} else {
if (unlink(autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
_("Failed to delete symlink '%s': %s"),
autostartLink, strerror(errno));
goto cleanup;
}
vm->autostart = autostart;
}
vm->autostart = autostart;
ret = 0;
cleanup:
@ -1536,54 +1606,60 @@ umlDomainBlockPeek (virDomainPtr dom,
void *buffer,
unsigned int flags ATTRIBUTE_UNUSED)
{
struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData;
virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
int fd, ret = -1, i;
struct uml_driver *driver = dom->conn->privateData;
virDomainObjPtr vm;
int fd = -1, ret = -1, i;
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (!vm) {
umlReportError (dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
_("no domain with matching uuid"));
return -1;
goto cleanup;
}
if (!path || path[0] == '\0') {
umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_ARG,
_("NULL or empty path"));
return -1;
goto cleanup;
}
/* Check the path belongs to this domain. */
for (i = 0 ; i < vm->def->ndisks ; i++) {
if (vm->def->disks[i]->src != NULL &&
STREQ (vm->def->disks[i]->src, path))
goto found;
}
umlReportError (dom->conn, dom, NULL, VIR_ERR_INVALID_ARG,
_("invalid path"));
return -1;
found:
/* The path is correct, now try to open it and get its size. */
fd = open (path, O_RDONLY);
if (fd == -1) {
umlReportError (dom->conn, dom, NULL, VIR_ERR_SYSTEM_ERROR,
"%s", strerror (errno));
goto done;
STREQ (vm->def->disks[i]->src, path)) {
ret = 0;
break;
}
}
/* Seek and read. */
/* NB. Because we configure with AC_SYS_LARGEFILE, off_t should
* be 64 bits on all platforms.
*/
if (lseek (fd, offset, SEEK_SET) == (off_t) -1 ||
saferead (fd, buffer, size) == (ssize_t) -1) {
umlReportError (dom->conn, dom, NULL, VIR_ERR_SYSTEM_ERROR,
"%s", strerror (errno));
goto done;
if (ret == 0) {
ret = -1;
/* The path is correct, now try to open it and get its size. */
fd = open (path, O_RDONLY);
if (fd == -1) {
umlReportError (dom->conn, dom, NULL, VIR_ERR_SYSTEM_ERROR,
"%s", strerror (errno));
goto cleanup;
}
/* Seek and read. */
/* NB. Because we configure with AC_SYS_LARGEFILE, off_t should
* be 64 bits on all platforms.
*/
if (lseek (fd, offset, SEEK_SET) == (off_t) -1 ||
saferead (fd, buffer, size) == (ssize_t) -1) {
umlReportError (dom->conn, dom, NULL, VIR_ERR_SYSTEM_ERROR,
"%s", strerror (errno));
goto cleanup;
}
ret = 0;
} else {
umlReportError (dom->conn, dom, NULL, VIR_ERR_INVALID_ARG,
_("invalid path"));
}
ret = 0;
done:
cleanup:
if (fd >= 0) close (fd);
return ret;
}