mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2025-01-11 07:17:44 +00:00
Add ACL checks into the interface driver
Insert calls to the ACL checking APIs in all interface driver entrypoints. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange
parent
453da48b12
commit
a7147bc68e
@ -1245,7 +1245,10 @@ noinst_LTLIBRARIES += libvirt_driver_interface.la
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# Stateful, so linked to daemon instead
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#libvirt_la_BUILT_LIBADD += libvirt_driver_interface.la
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endif
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libvirt_driver_interface_la_CFLAGS = -I$(top_srcdir)/src/conf $(AM_CFLAGS)
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libvirt_driver_interface_la_CFLAGS = \
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-I$(top_srcdir)/src/access \
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-I$(top_srcdir)/src/conf \
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$(AM_CFLAGS)
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libvirt_driver_interface_la_LDFLAGS = $(AM_LDFLAGS)
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libvirt_driver_interface_la_LIBADD =
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if WITH_NETCF
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@ -31,6 +31,8 @@
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#include "interface_conf.h"
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#include "viralloc.h"
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#include "virlog.h"
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#include "virstring.h"
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#include "viraccessapicheck.h"
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#define VIR_FROM_THIS VIR_FROM_INTERFACE
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@ -52,6 +54,36 @@ static void interfaceDriverUnlock(struct interface_driver *driver)
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virMutexUnlock(&driver->lock);
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}
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/*
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* Get a minimal virInterfaceDef containing enough metadata
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* for access control checks to be performed. Currently
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* this implies existance of name and mac address attributes
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*/
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static virInterfaceDef * ATTRIBUTE_NONNULL(1)
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netcfGetMinimalDefForDevice(struct netcf_if *iface)
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{
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virInterfaceDef *def;
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/* Allocate our interface definition structure */
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if (VIR_ALLOC(def) < 0) {
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virReportOOMError();
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return NULL;
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}
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if (VIR_STRDUP(def->name, ncf_if_name(iface)) < 0)
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goto cleanup;
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if (VIR_STRDUP(def->mac, ncf_if_mac_string(iface)) < 0)
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goto cleanup;
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return def;
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cleanup:
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virInterfaceDefFree(def);
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return NULL;
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}
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static int netcf_to_vir_err(int netcf_errcode)
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{
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switch (netcf_errcode)
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@ -182,6 +214,9 @@ static int netcfConnectNumOfInterfaces(virConnectPtr conn)
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int count;
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struct interface_driver *driver = conn->interfacePrivateData;
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if (virConnectNumOfInterfacesEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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count = ncf_num_of_interfaces(driver->netcf, NETCF_IFACE_ACTIVE);
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if (count < 0) {
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@ -201,6 +236,9 @@ static int netcfConnectListInterfaces(virConnectPtr conn, char **const names, in
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struct interface_driver *driver = conn->interfacePrivateData;
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int count;
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if (virConnectListInterfacesEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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count = ncf_list_interfaces(driver->netcf, nnames, names, NETCF_IFACE_ACTIVE);
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@ -223,6 +261,9 @@ static int netcfConnectNumOfDefinedInterfaces(virConnectPtr conn)
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int count;
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struct interface_driver *driver = conn->interfacePrivateData;
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if (virConnectNumOfDefinedInterfacesEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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count = ncf_num_of_interfaces(driver->netcf, NETCF_IFACE_INACTIVE);
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if (count < 0) {
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@ -243,6 +284,9 @@ static int netcfConnectListDefinedInterfaces(virConnectPtr conn, char **const na
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struct interface_driver *driver = conn->interfacePrivateData;
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int count;
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if (virConnectListDefinedInterfacesEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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count = ncf_list_interfaces(driver->netcf, nnames, names, NETCF_IFACE_INACTIVE);
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@ -279,6 +323,9 @@ netcfConnectListAllInterfaces(virConnectPtr conn,
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virCheckFlags(VIR_CONNECT_LIST_INTERFACES_FILTERS_ACTIVE, -1);
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if (virConnectListAllInterfacesEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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/* List all interfaces, in case of we might support new filter flags
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@ -414,6 +461,7 @@ static virInterfacePtr netcfInterfaceLookupByName(virConnectPtr conn,
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struct interface_driver *driver = conn->interfacePrivateData;
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struct netcf_if *iface;
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virInterfacePtr ret = NULL;
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virInterfaceDefPtr def = NULL;
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interfaceDriverLock(driver);
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iface = ncf_lookup_by_name(driver->netcf, name);
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@ -432,10 +480,17 @@ static virInterfacePtr netcfInterfaceLookupByName(virConnectPtr conn,
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goto cleanup;
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}
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if (!(def = netcfGetMinimalDefForDevice(iface)))
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goto cleanup;
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if (virInterfaceLookupByNameEnsureACL(conn, def) < 0)
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goto cleanup;
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ret = virGetInterface(conn, ncf_if_name(iface), ncf_if_mac_string(iface));
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cleanup:
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ncf_if_free(iface);
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virInterfaceDefFree(def);
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interfaceDriverUnlock(driver);
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return ret;
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}
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@ -447,6 +502,7 @@ static virInterfacePtr netcfInterfaceLookupByMACString(virConnectPtr conn,
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struct netcf_if *iface;
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int niface;
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virInterfacePtr ret = NULL;
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virInterfaceDefPtr def = NULL;
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interfaceDriverLock(driver);
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niface = ncf_lookup_by_mac_string(driver->netcf, macstr, 1, &iface);
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@ -472,10 +528,18 @@ static virInterfacePtr netcfInterfaceLookupByMACString(virConnectPtr conn,
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goto cleanup;
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}
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if (!(def = netcfGetMinimalDefForDevice(iface)))
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goto cleanup;
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if (virInterfaceLookupByMACStringEnsureACL(conn, def) < 0)
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goto cleanup;
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ret = virGetInterface(conn, ncf_if_name(iface), ncf_if_mac_string(iface));
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cleanup:
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ncf_if_free(iface);
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virInterfaceDefFree(def);
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interfaceDriverUnlock(driver);
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return ret;
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}
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@ -520,6 +584,9 @@ static char *netcfInterfaceGetXMLDesc(virInterfacePtr ifinfo,
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goto cleanup;
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}
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if (virInterfaceGetXMLDescEnsureACL(ifinfo->conn, ifacedef) < 0)
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goto cleanup;
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ret = virInterfaceDefFormat(ifacedef);
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if (!ret) {
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/* error was already reported */
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@ -554,6 +621,9 @@ static virInterfacePtr netcfInterfaceDefineXML(virConnectPtr conn,
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goto cleanup;
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}
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if (virInterfaceDefineXMLEnsureACL(conn, ifacedef) < 0)
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goto cleanup;
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xmlstr = virInterfaceDefFormat(ifacedef);
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if (!xmlstr) {
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/* error was already reported */
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@ -584,6 +654,7 @@ cleanup:
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static int netcfInterfaceUndefine(virInterfacePtr ifinfo) {
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struct interface_driver *driver = ifinfo->conn->interfacePrivateData;
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struct netcf_if *iface = NULL;
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virInterfaceDefPtr def = NULL;
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int ret = -1;
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interfaceDriverLock(driver);
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@ -594,6 +665,13 @@ static int netcfInterfaceUndefine(virInterfacePtr ifinfo) {
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goto cleanup;
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}
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if (!(def = netcfGetMinimalDefForDevice(iface)))
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goto cleanup;
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if (virInterfaceUndefineEnsureACL(ifinfo->conn, def) < 0)
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goto cleanup;
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ret = ncf_if_undefine(iface);
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if (ret < 0) {
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const char *errmsg, *details;
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@ -607,6 +685,7 @@ static int netcfInterfaceUndefine(virInterfacePtr ifinfo) {
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cleanup:
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ncf_if_free(iface);
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virInterfaceDefFree(def);
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interfaceDriverUnlock(driver);
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return ret;
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}
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@ -616,6 +695,7 @@ static int netcfInterfaceCreate(virInterfacePtr ifinfo,
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{
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struct interface_driver *driver = ifinfo->conn->interfacePrivateData;
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struct netcf_if *iface = NULL;
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virInterfaceDefPtr def = NULL;
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int ret = -1;
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virCheckFlags(0, -1);
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@ -628,6 +708,13 @@ static int netcfInterfaceCreate(virInterfacePtr ifinfo,
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goto cleanup;
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}
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if (!(def = netcfGetMinimalDefForDevice(iface)))
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goto cleanup;
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if (virInterfaceCreateEnsureACL(ifinfo->conn, def) < 0)
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goto cleanup;
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ret = ncf_if_up(iface);
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if (ret < 0) {
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const char *errmsg, *details;
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@ -641,6 +728,7 @@ static int netcfInterfaceCreate(virInterfacePtr ifinfo,
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cleanup:
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ncf_if_free(iface);
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virInterfaceDefFree(def);
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interfaceDriverUnlock(driver);
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return ret;
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}
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@ -650,6 +738,7 @@ static int netcfInterfaceDestroy(virInterfacePtr ifinfo,
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{
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struct interface_driver *driver = ifinfo->conn->interfacePrivateData;
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struct netcf_if *iface = NULL;
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virInterfaceDefPtr def = NULL;
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int ret = -1;
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virCheckFlags(0, -1);
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@ -662,6 +751,13 @@ static int netcfInterfaceDestroy(virInterfacePtr ifinfo,
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goto cleanup;
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}
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if (!(def = netcfGetMinimalDefForDevice(iface)))
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goto cleanup;
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if (virInterfaceDestroyEnsureACL(ifinfo->conn, def) < 0)
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goto cleanup;
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ret = ncf_if_down(iface);
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if (ret < 0) {
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const char *errmsg, *details;
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@ -675,6 +771,7 @@ static int netcfInterfaceDestroy(virInterfacePtr ifinfo,
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cleanup:
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ncf_if_free(iface);
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virInterfaceDefFree(def);
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interfaceDriverUnlock(driver);
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return ret;
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}
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@ -684,6 +781,7 @@ static int netcfInterfaceIsActive(virInterfacePtr ifinfo)
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struct interface_driver *driver = ifinfo->conn->interfacePrivateData;
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struct netcf_if *iface = NULL;
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unsigned int flags = 0;
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virInterfaceDefPtr def = NULL;
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int ret = -1;
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interfaceDriverLock(driver);
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@ -694,6 +792,13 @@ static int netcfInterfaceIsActive(virInterfacePtr ifinfo)
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goto cleanup;
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}
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if (!(def = netcfGetMinimalDefForDevice(iface)))
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goto cleanup;
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if (virInterfaceIsActiveEnsureACL(ifinfo->conn, def) < 0)
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goto cleanup;
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if (ncf_if_status(iface, &flags) < 0) {
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const char *errmsg, *details;
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int errcode = ncf_error(driver->netcf, &errmsg, &details);
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@ -708,6 +813,7 @@ static int netcfInterfaceIsActive(virInterfacePtr ifinfo)
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cleanup:
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ncf_if_free(iface);
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virInterfaceDefFree(def);
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interfaceDriverUnlock(driver);
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return ret;
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}
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@ -720,6 +826,9 @@ static int netcfInterfaceChangeBegin(virConnectPtr conn, unsigned int flags)
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virCheckFlags(0, -1); /* currently flags must be 0 */
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if (virInterfaceChangeBeginEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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ret = ncf_change_begin(driver->netcf, 0);
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@ -743,6 +852,9 @@ static int netcfInterfaceChangeCommit(virConnectPtr conn, unsigned int flags)
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virCheckFlags(0, -1); /* currently flags must be 0 */
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if (virInterfaceChangeCommitEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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ret = ncf_change_commit(driver->netcf, 0);
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@ -766,6 +878,9 @@ static int netcfInterfaceChangeRollback(virConnectPtr conn, unsigned int flags)
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virCheckFlags(0, -1); /* currently flags must be 0 */
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if (virInterfaceChangeRollbackEnsureACL(conn) < 0)
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return -1;
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interfaceDriverLock(driver);
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ret = ncf_change_rollback(driver->netcf, 0);
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@ -31,6 +31,7 @@
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#include "interface_conf.h"
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#include "viralloc.h"
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#include "virstring.h"
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#include "viraccessapicheck.h"
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#define VIR_FROM_THIS VIR_FROM_INTERFACE
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@ -61,6 +62,36 @@ virUdevStatusString(virUdevStatus status)
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return "";
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}
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/*
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* Get a minimal virInterfaceDef containing enough metadata
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* for access control checks to be performed. Currently
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* this implies existance of name and mac address attributes
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*/
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static virInterfaceDef * ATTRIBUTE_NONNULL(1)
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udevGetMinimalDefForDevice(struct udev_device *dev)
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{
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virInterfaceDef *def;
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/* Allocate our interface definition structure */
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if (VIR_ALLOC(def) < 0) {
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virReportOOMError();
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return NULL;
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}
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if (VIR_STRDUP(def->name, udev_device_get_sysname(dev)) < 0)
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goto cleanup;
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if (VIR_STRDUP(def->mac, udev_device_get_sysattr_value(dev, "address")) < 0)
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goto cleanup;
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return def;
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cleanup:
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virInterfaceDefFree(def);
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return NULL;
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}
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static struct udev_enumerate * ATTRIBUTE_NONNULL(1)
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udevGetDevices(struct udev *udev, virUdevStatus status)
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{
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@ -255,6 +286,9 @@ error:
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static int
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udevConnectNumOfInterfaces(virConnectPtr conn)
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{
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if (virConnectNumOfInterfacesEnsureACL(conn) < 0)
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return -1;
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return udevNumOfInterfacesByStatus(conn, VIR_UDEV_IFACE_ACTIVE);
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}
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@ -263,6 +297,9 @@ udevConnectListInterfaces(virConnectPtr conn,
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char **const names,
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int names_len)
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{
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if (virConnectListInterfacesEnsureACL(conn) < 0)
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return -1;
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return udevListInterfacesByStatus(conn, names, names_len,
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VIR_UDEV_IFACE_ACTIVE);
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}
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@ -270,6 +307,9 @@ udevConnectListInterfaces(virConnectPtr conn,
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static int
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udevConnectNumOfDefinedInterfaces(virConnectPtr conn)
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{
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if (virConnectNumOfDefinedInterfacesEnsureACL(conn) < 0)
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return -1;
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return udevNumOfInterfacesByStatus(conn, VIR_UDEV_IFACE_INACTIVE);
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}
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@ -278,6 +318,9 @@ udevConnectListDefinedInterfaces(virConnectPtr conn,
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char **const names,
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int names_len)
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{
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if (virConnectListDefinedInterfacesEnsureACL(conn) < 0)
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return -1;
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return udevListInterfacesByStatus(conn, names, names_len,
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VIR_UDEV_IFACE_INACTIVE);
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}
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@ -302,6 +345,9 @@ udevConnectListAllInterfaces(virConnectPtr conn,
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virCheckFlags(VIR_CONNECT_LIST_INTERFACES_FILTERS_ACTIVE, -1);
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|
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if (virConnectListAllInterfacesEnsureACL(conn) < 0)
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return -1;
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|
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/* Grab a udev reference */
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udev = udev_ref(driverState->udev);
|
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|
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@ -412,8 +458,8 @@ udevInterfaceLookupByName(virConnectPtr conn, const char *name)
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struct udev_iface_driver *driverState = conn->interfacePrivateData;
|
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struct udev *udev = udev_ref(driverState->udev);
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struct udev_device *dev;
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const char *macaddr;
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virInterfacePtr ret = NULL;
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virInterfaceDefPtr def = NULL;
|
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|
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/* get a device reference based on the device name */
|
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dev = udev_device_new_from_subsystem_sysname(udev, "net", name);
|
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@ -424,12 +470,18 @@ udevInterfaceLookupByName(virConnectPtr conn, const char *name)
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goto cleanup;
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}
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|
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macaddr = udev_device_get_sysattr_value(dev, "address");
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ret = virGetInterface(conn, name, macaddr);
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if (!(def = udevGetMinimalDefForDevice(dev)))
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goto cleanup;
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|
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if (virInterfaceLookupByNameEnsureACL(conn, def) < 0)
|
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goto cleanup;
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|
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ret = virGetInterface(conn, def->name, def->mac);
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udev_device_unref(dev);
|
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|
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cleanup:
|
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udev_unref(udev);
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virInterfaceDefFree(def);
|
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|
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return ret;
|
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}
|
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@ -442,7 +494,7 @@ udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr)
|
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struct udev_enumerate *enumerate = NULL;
|
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struct udev_list_entry *dev_entry;
|
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struct udev_device *dev;
|
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const char *name;
|
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virInterfaceDefPtr def = NULL;
|
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virInterfacePtr ret = NULL;
|
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|
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enumerate = udevGetDevices(udev, VIR_UDEV_IFACE_ALL);
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@ -480,14 +532,21 @@ udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr)
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}
|
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|
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dev = udev_device_new_from_syspath(udev, udev_list_entry_get_name(dev_entry));
|
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name = udev_device_get_sysname(dev);
|
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ret = virGetInterface(conn, name, macstr);
|
||||
|
||||
if (!(def = udevGetMinimalDefForDevice(dev)))
|
||||
goto cleanup;
|
||||
|
||||
if (virInterfaceLookupByMACStringEnsureACL(conn, def) < 0)
|
||||
goto cleanup;
|
||||
|
||||
ret = virGetInterface(conn, def->name, def->mac);
|
||||
udev_device_unref(dev);
|
||||
|
||||
cleanup:
|
||||
if (enumerate)
|
||||
udev_enumerate_unref(enumerate);
|
||||
udev_unref(udev);
|
||||
virInterfaceDefFree(def);
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -1044,6 +1103,9 @@ udevInterfaceGetXMLDesc(virInterfacePtr ifinfo,
|
||||
if (!ifacedef)
|
||||
goto cleanup;
|
||||
|
||||
if (virInterfaceGetXMLDescEnsureACL(ifinfo->conn, ifacedef) < 0)
|
||||
goto cleanup;
|
||||
|
||||
xmlstr = virInterfaceDefFormat(ifacedef);
|
||||
|
||||
virInterfaceDefFree(ifacedef);
|
||||
@ -1061,7 +1123,8 @@ udevInterfaceIsActive(virInterfacePtr ifinfo)
|
||||
struct udev_iface_driver *driverState = ifinfo->conn->interfacePrivateData;
|
||||
struct udev *udev = udev_ref(driverState->udev);
|
||||
struct udev_device *dev;
|
||||
int status;
|
||||
virInterfaceDefPtr def = NULL;
|
||||
int status = -1;
|
||||
|
||||
dev = udev_device_new_from_subsystem_sysname(udev, "net",
|
||||
ifinfo->name);
|
||||
@ -1069,10 +1132,15 @@ udevInterfaceIsActive(virInterfacePtr ifinfo)
|
||||
virReportError(VIR_ERR_NO_INTERFACE,
|
||||
_("couldn't find interface named '%s'"),
|
||||
ifinfo->name);
|
||||
status = -1;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
if (!(def = udevGetMinimalDefForDevice(dev)))
|
||||
goto cleanup;
|
||||
|
||||
if (virInterfaceIsActiveEnsureACL(ifinfo->conn, def) < 0)
|
||||
goto cleanup;
|
||||
|
||||
/* Check if it's active or not */
|
||||
status = STREQ(udev_device_get_sysattr_value(dev, "operstate"), "up");
|
||||
|
||||
@ -1080,6 +1148,7 @@ udevInterfaceIsActive(virInterfacePtr ifinfo)
|
||||
|
||||
cleanup:
|
||||
udev_unref(udev);
|
||||
virInterfaceDefFree(def);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user