libvirt/tests/networkxml2xmltest.c

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#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include "internal.h"
#include "testutils.h"
#include "network_conf.h"
#include "testutilsqemu.h"
#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
static int
testCompareXMLToXMLFiles(const char *inxml, const char *outxml,
unsigned int flags)
{
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char *actual = NULL;
int ret = -1;
virNetworkDefPtr dev = NULL;
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if (!(dev = virNetworkDefParseFile(inxml)))
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goto fail;
if (!(actual = virNetworkDefFormat(dev, flags)))
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goto fail;
if (virtTestCompareToFile(actual, outxml) < 0)
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goto fail;
ret = 0;
fail:
VIR_FREE(actual);
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virNetworkDefFree(dev);
return ret;
}
struct testInfo {
const char *name;
unsigned int flags;
};
static int
testCompareXMLToXMLHelper(const void *data)
{
const struct testInfo *info = data;
int result = -1;
char *inxml = NULL;
char *outxml = NULL;
if (virAsprintf(&inxml, "%s/networkxml2xmlin/%s.xml",
abs_srcdir, info->name) < 0 ||
virAsprintf(&outxml, "%s/networkxml2xmlout/%s.xml",
abs_srcdir, info->name) < 0) {
goto cleanup;
}
result = testCompareXMLToXMLFiles(inxml, outxml, info->flags);
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cleanup:
VIR_FREE(inxml);
VIR_FREE(outxml);
return result;
}
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static int
tests: simplify common setup A few of the tests were missing basic sanity checks, while most of them were doing copy-and-paste initialization (in fact, some of them pasted the argc > 1 check more than once!). It's much nicer to do things in one common place, and minimizes the size of the next patch that fixes getcwd usage. * tests/testutils.h (EXIT_AM_HARDFAIL): New define. (progname, abs_srcdir): Define for all tests. (VIRT_TEST_MAIN): Change callback signature. * tests/testutils.c (virtTestMain): Do more common init. * tests/commandtest.c (mymain): Simplify. * tests/cputest.c (mymain): Likewise. * tests/esxutilstest.c (mymain): Likewise. * tests/eventtest.c (mymain): Likewise. * tests/hashtest.c (mymain): Likewise. * tests/networkxml2xmltest.c (mymain): Likewise. * tests/nodedevxml2xmltest.c (myname): Likewise. * tests/nodeinfotest.c (mymain): Likewise. * tests/nwfilterxml2xmltest.c (mymain): Likewise. * tests/qemuargv2xmltest.c (mymain): Likewise. * tests/qemuhelptest.c (mymain): Likewise. * tests/qemuxml2argvtest.c (mymain): Likewise. * tests/qemuxml2xmltest.c (mymain): Likewise. * tests/qparamtest.c (mymain): Likewise. * tests/sexpr2xmltest.c (mymain): Likewise. * tests/sockettest.c (mymain): Likewise. * tests/statstest.c (mymain): Likewise. * tests/storagepoolxml2xmltest.c (mymain): Likewise. * tests/storagevolxml2xmltest.c (mymain): Likewise. * tests/virbuftest.c (mymain): Likewise. * tests/virshtest.c (mymain): Likewise. * tests/vmx2xmltest.c (mymain): Likewise. * tests/xencapstest.c (mymain): Likewise. * tests/xmconfigtest.c (mymain): Likewise. * tests/xml2sexprtest.c (mymain): Likewise. * tests/xml2vmxtest.c (mymain): Likewise.
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mymain(void)
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{
int ret = 0;
#define DO_TEST_FULL(name, flags) \
do { \
const struct testInfo info = {name, flags}; \
if (virtTestRun("Network XML-2-XML " name, \
testCompareXMLToXMLHelper, &info) < 0) \
ret = -1; \
} while (0)
#define DO_TEST(name) DO_TEST_FULL(name, 0)
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DO_TEST("dhcp6host-routed-network");
DO_TEST("empty-allow-ipv6");
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DO_TEST("isolated-network");
DO_TEST("routed-network");
DO_TEST("nat-network");
DO_TEST("netboot-network");
DO_TEST("netboot-proxy-network");
DO_TEST("nat-network-dns-txt-record");
DO_TEST("nat-network-dns-srv-record");
DO_TEST("nat-network-dns-srv-records");
DO_TEST("nat-network-dns-srv-record-minimal");
DO_TEST("nat-network-dns-hosts");
DO_TEST("nat-network-dns-forward-plain");
DO_TEST("nat-network-dns-forwarders");
DO_TEST("nat-network-forward-nat-address");
conf: support abstracted interface info in network XML The network XML is updated in the following ways: 1) The <forward> element can now contain a list of forward interfaces: <forward .... > <interface dev='eth10'/> <interface dev='eth11'/> <interface dev='eth12'/> <interface dev='eth13'/> </forward> The first of these takes the place of the dev attribute that is normally in <forward> - when defining a network you can specify either one, and on output both will be present. If you specify both on input, they must match. 2) In addition to forward modes of 'nat' and 'route', these new modes are supported: private, passthrough, vepa - when this network is referenced by a domain's interface, it will have the same effect as if the interface had been defined as type='direct', e.g.: <interface type='direct'> <source mode='${mode}' dev='${dev}> ... </interface> where ${mode} is one of the three new modes, and ${dev} is an interface selected from the list given in <forward>. bridge - if a <forward> dev (or multiple devs) is defined, and forward mode is 'bridge' this is just like the modes 'private', 'passthrough', and 'vepa' above. If there is no forward dev specified but a bridge name is given (e.g. "<bridge name='br0'/>"), then guest interfaces using this network will use libvirt's "host bridge" mode, equivalent to this: <interface type='bridge'> <source bridge='${bridge-name}'/> ... </interface> 3) A network can have multiple <portgroup> elements, which may be selected by the guest interface definition (by adding "portgroup='${name}'" in the <source> element along with the network name). Currently a portgroup can only contain a virtportprofile, but the intent is that other configuration items may be put there int the future (e.g. bandwidth config). When building a guest's interface, if the <interface> XML itself has no virtportprofile, and if the requested network has a portgroup with a name matching the name given in the <interface> (or if one of the network's portgroups is marked with the "default='yes'" attribute), the virtportprofile from that portgroup will be used by the interface. 4) A network can have a virtportprofile defined at the top level, which will be used by a guest interface when connecting in one of the 'direct' modes if the guest interface XML itself hasn't specified any virtportprofile, and if there are also no matching portgroups on the network.
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DO_TEST("8021Qbh-net");
DO_TEST("direct-net");
DO_TEST("host-bridge-net");
DO_TEST("vepa-net");
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DO_TEST("bandwidth-network");
conf: support partially-specified <virtualport> in parser and formatter Until now, all attributes in a <virtualport> parameter list that were acceptable for a particular type, were also required. There were no optional attributes. One of the aims of supporting <virtualport> in libvirt's virtual networks and portgroups is to allow specifying the group-wide parameters in the network's virtualport, and merge that with the interface's virtualport, which will have the instance-specific info (i.e. the interfaceid or instanceid). Additionally, the guest's interface XML shouldn't need to know what type of network connection will be used prior to runtime - it could be openvswitch, 802.1Qbh, 802.1Qbg, or none of the above - but should still be able to specify instance-specific info just in case it turns out to be applicable. Finally, up to now, the parser for virtualport has always generated a random instanceid/interfaceid when appropriate, making it impossible to leave it blank (which is what's required for virtualports within a network/portprofile definition). This patch modifies the parser and formatter of the <virtualport> element in the following ways: * because most of the attributes in a virNetDevVPortProfile are fixed size binary data with no reserved values, there is no way to embed a "this value wasn't specified" sentinel into the existing data. To solve this problem, the new *_specified fields in the virNetDevVPortProfile object that were added in a previous patch of this series are now set when the corresponding attribute is present during the parse. * allow parsing/formatting a <virtualport> that has no type set. In this case, all fields are settable, but all are also optional. * add a GENERATE_MISSING_DEFAULTS flag to the parser - if this flag is set and an instanceid/interfaceid is expected but not provided, a random one will be generated. This was previously the default behavior, but is now done only for virtualports inside an <interface> definition, not for those in <network> or <portgroup>. * add a REQUIRE_ALL_ATTRIBUTES flag to the parser - if this flag is set the parser will call the new virNetDevVPortProfileCheckComplete() functions at the end of the parser to check for any missing attributes (based on type), and return failure if anything is missing. This used to be default behavior. Now it is only used for the virtualport defined inside an interface's <actual> element (by the time you've figured out the contents of <actual>, you should have all the necessary data to fill in the entire virtualport) * add a REQUIRE_TYPE flag to the parser - if this flag is set, the parser will return an error if the virtualport has no type attribute. This also was previously the default behavior, but isn't needed in the case of the virtualport for a type='network' interface (i.e. the exact type isn't yet known), or the virtualport of a portgroup (i.e. the portgroup just has modifiers for the network's virtualport, which *does* require a type) - in those cases, the check will be done at domain startup, once the final virtualport is assembled (this is handled in the next patch).
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DO_TEST("openvswitch-net");
DO_TEST_FULL("passthrough-pf", VIR_NETWORK_XML_INACTIVE);
DO_TEST("hostdev");
DO_TEST_FULL("hostdev-pf", VIR_NETWORK_XML_INACTIVE);
DO_TEST("passthrough-address-crash");
conf: new network bridge device attribute macTableManager The macTableManager attribute of a network's bridge subelement tells libvirt how the bridge's MAC address table (used to determine the egress port for packets) is managed. In the default mode, "kernel", management is left to the kernel, which usually determines entries in part by turning on promiscuous mode on all ports of the bridge, flooding packets to all ports when the correct destination is unknown, and adding/removing entries to the fdb as it sees incoming traffic from particular MAC addresses. In "libvirt" mode, libvirt turns off learning and flooding on all the bridge ports connected to guest domain interfaces, and adds/removes entries according to the MAC addresses in the domain interface configurations. A side effect of turning off learning and unicast_flood on the ports of a bridge is that (with Linux kernel 3.17 and newer), the kernel can automatically turn off promiscuous mode on one or more of the bridge's ports (usually only the one interface that is used to connect the bridge to the physical network). The result is better performance (because packets aren't being flooded to all ports, and can be dropped earlier when they are of no interest) and slightly better security (a guest can still send out packets with a spoofed source MAC address, but will only receive traffic intended for the guest interface's configured MAC address). The attribute looks like this in the configuration: <network> <name>test</name> <bridge name='br0' macTableManager='libvirt'/> ... This patch only adds the config knob, documentation, and test cases. The functionality behind this knob is added in later patches.
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DO_TEST("nat-network-explicit-flood");
DO_TEST("host-bridge-no-flood");
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
VIRT_TEST_MAIN(mymain)