[libvirt] [PATCH v6 4/5] qemu: Add a secret object to/for a chardev tcp with secret

Add the secret object prior to the chardev tcp so the 'passwordid=' can be added if the domain XML has a <secret> for the chardev TLS. Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- src/qemu/qemu_command.c | 32 ++++++- src/qemu/qemu_command.h | 1 + src/qemu/qemu_domain.c | 99 +++++++++++++++++++++- src/qemu/qemu_domain.h | 16 +++- src/qemu/qemu_hotplug.c | 1 + src/qemu/qemu_process.c | 6 +- ...xml2argv-serial-tcp-tlsx509-secret-chardev.args | 38 +++++++++ ...uxml2argv-serial-tcp-tlsx509-secret-chardev.xml | 50 +++++++++++ tests/qemuxml2argvtest.c | 19 +++++ 9 files changed, 253 insertions(+), 9 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.xml diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 1fd57b0..b9179f0 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -683,6 +683,7 @@ qemuBuildRBDSecinfoURI(virBufferPtr buf, * @tlspath: path to the TLS credentials * @listen: boolen listen for client or server setting * @verifypeer: boolean to enable peer verification (form of authorization) + * @secalias: if one exists, the alias of the security object for passwordid * @qemuCaps: capabilities * @propsret: json properties to return * @@ -694,6 +695,7 @@ int qemuBuildTLSx509BackendProps(const char *tlspath, bool listen, bool verifypeer, + const char *secalias, virQEMUCapsPtr qemuCaps, virJSONValuePtr *propsret) { @@ -719,6 +721,10 @@ qemuBuildTLSx509BackendProps(const char *tlspath, NULL) < 0) goto cleanup; + if (secalias && + virJSONValueObjectAdd(*propsret, "s:passwordid", secalias, NULL) < 0) + goto cleanup; + ret = 0; cleanup: @@ -733,6 +739,7 @@ qemuBuildTLSx509BackendProps(const char *tlspath, * @tlspath: path to the TLS credentials * @listen: boolen listen for client or server setting * @verifypeer: boolean to enable peer verification (form of authorization) + * @addpasswordid: boolean to handle adding passwordid to object * @inalias: Alias for the parent to generate object alias * @qemuCaps: capabilities * @@ -745,6 +752,7 @@ qemuBuildTLSx509CommandLine(virCommandPtr cmd, const char *tlspath, bool listen, bool verifypeer, + bool addpasswordid, const char *inalias, virQEMUCapsPtr qemuCaps) { @@ -752,11 +760,16 @@ qemuBuildTLSx509CommandLine(virCommandPtr cmd, char *objalias = NULL; virJSONValuePtr props = NULL; char *tmp = NULL; + char *secalias = NULL; - if (qemuBuildTLSx509BackendProps(tlspath, listen, verifypeer, - qemuCaps, &props) < 0) + if (addpasswordid && + !(secalias = qemuDomainGetSecretAESAlias(inalias, false))) return -1; + if (qemuBuildTLSx509BackendProps(tlspath, listen, verifypeer, secalias, + qemuCaps, &props) < 0) + goto cleanup; + if (!(objalias = qemuAliasTLSObjFromChardevAlias(inalias))) goto cleanup; @@ -772,6 +785,7 @@ qemuBuildTLSx509CommandLine(virCommandPtr cmd, virJSONValueFree(props); VIR_FREE(objalias); VIR_FREE(tmp); + VIR_FREE(secalias); return ret; } @@ -5063,6 +5077,7 @@ qemuBuildChrChardevStr(virLogManagerPtr logManager, if (qemuBuildTLSx509CommandLine(cmd, cfg->chardevTLSx509certdir, dev->data.tcp.listen, cfg->chardevTLSx509verify, + cfg->chardevTLSx509haveUUID, alias, qemuCaps) < 0) goto error; @@ -8708,6 +8723,19 @@ qemuBuildSerialCommandLine(virLogManagerPtr logManager, /* Use -chardev with -device if they are available */ if (virQEMUCapsSupportsChardev(def, qemuCaps, serial)) { + qemuDomainChardevPrivatePtr chardevPriv = + QEMU_DOMAIN_CHARDEV_PRIVATE(serial); + qemuDomainSecretInfoPtr secinfo = chardevPriv->secinfo; + + /* Add the secret object first if necessary. The + * secinfo is added only to a TCP serial device during + * qemuDomainSecretChardevPrepare. Subsequent called + * functions can just check the config fields */ + if (cfg->chardevTLS && cfg->chardevTLSx509haveUUID && + serial->source.type == VIR_DOMAIN_CHR_TYPE_TCP && + qemuBuildObjectSecretCommandLine(cmd, secinfo) < 0) + return -1; + if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def, &serial->source, serial->info.alias, diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h index b7c59bb..5d303ce 100644 --- a/src/qemu/qemu_command.h +++ b/src/qemu/qemu_command.h @@ -69,6 +69,7 @@ int qemuBuildSecretInfoProps(qemuDomainSecretInfoPtr secinfo, int qemuBuildTLSx509BackendProps(const char *tlspath, bool listen, bool verifypeer, + const char *secalias, virQEMUCapsPtr qemuCaps, virJSONValuePtr *propsret); diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index cab1f24..434bad1 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1042,7 +1042,8 @@ qemuDomainSecretSetup(virConnectPtr conn, if (virCryptoHaveCipher(VIR_CRYPTO_CIPHER_AES256CBC) && virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_SECRET) && (secretUsageType == VIR_SECRET_USAGE_TYPE_CEPH || - secretUsageType == VIR_SECRET_USAGE_TYPE_VOLUME)) { + secretUsageType == VIR_SECRET_USAGE_TYPE_VOLUME || + secretUsageType == VIR_SECRET_USAGE_TYPE_TLS)) { if (qemuDomainSecretAESSetup(conn, priv, secinfo, srcalias, secretUsageType, username, seclookupdef, isLuks) < 0) @@ -1223,6 +1224,91 @@ qemuDomainSecretHostdevPrepare(virConnectPtr conn, } +/* qemuDomainSecretChardevDestroy: + * @disk: Pointer to a chardev definition + * + * Clear and destroy memory associated with the secret + */ +void +qemuDomainSecretChardevDestroy(virDomainChrDefPtr chardev) +{ + qemuDomainChardevPrivatePtr chardevPriv = + QEMU_DOMAIN_CHARDEV_PRIVATE(chardev); + + if (!chardevPriv || !chardevPriv->secinfo) + return; + + qemuDomainSecretInfoFree(&chardevPriv->secinfo); +} + + +/* qemuDomainSecretChardevPrepare: + * @conn: Pointer to connection + * @driver: Pointer to driver object + * @priv: pointer to domain private object + * @chardev: Pointer to a chardev definition + * + * For a serial TCP character device, generate a qemuDomainSecretInfo to be + * used by the command line code to generate the secret for the tls-creds + * to use. + * + * Returns 0 on success, -1 on failure + */ +int +qemuDomainSecretChardevPrepare(virConnectPtr conn, + virQEMUDriverPtr driver, + qemuDomainObjPrivatePtr priv, + virDomainChrDefPtr chardev) +{ + virQEMUDriverConfigPtr cfg; + virSecretLookupTypeDef seclookupdef = {0}; + qemuDomainSecretInfoPtr secinfo = NULL; + + if (!conn || chardev->deviceType != VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL || + chardev->source.type != VIR_DOMAIN_CHR_TYPE_TCP) + return 0; + + cfg = virQEMUDriverGetConfig(driver); + if (cfg->chardevTLS && cfg->chardevTLSx509haveUUID) { + qemuDomainChardevPrivatePtr chardevPriv = + QEMU_DOMAIN_CHARDEV_PRIVATE(chardev); + + if (virUUIDParse(cfg->chardevTLSx509secretUUID, + seclookupdef.u.uuid) < 0) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("malformed chardev TLS secret uuid in qemu.conf")); + goto error; + } + seclookupdef.type = VIR_SECRET_LOOKUP_TYPE_UUID; + + if (VIR_ALLOC(secinfo) < 0) + goto error; + + if (qemuDomainSecretSetup(conn, priv, secinfo, chardev->info.alias, + VIR_SECRET_USAGE_TYPE_TLS, NULL, + &seclookupdef, false) < 0) + goto error; + + if (secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("TLS X.509 requires encrypted secrets " + "to be supported")); + goto error; + } + + chardevPriv->secinfo = secinfo; + } + + virObjectUnref(cfg); + return 0; + + error: + virObjectUnref(cfg); + qemuDomainSecretInfoFree(&secinfo); + return -1; +} + + /* qemuDomainSecretDestroy: * @vm: Domain object * @@ -1239,11 +1325,15 @@ qemuDomainSecretDestroy(virDomainObjPtr vm) for (i = 0; i < vm->def->nhostdevs; i++) qemuDomainSecretHostdevDestroy(vm->def->hostdevs[i]); + + for (i = 0; i < vm->def->nserials; i++) + qemuDomainSecretChardevDestroy(vm->def->serials[i]); } /* qemuDomainSecretPrepare: * @conn: Pointer to connection + * @driver: Pointer to driver object * @vm: Domain object * * For any objects that may require an auth/secret setup, create a @@ -1256,6 +1346,7 @@ qemuDomainSecretDestroy(virDomainObjPtr vm) */ int qemuDomainSecretPrepare(virConnectPtr conn, + virQEMUDriverPtr driver, virDomainObjPtr vm) { qemuDomainObjPrivatePtr priv = vm->privateData; @@ -1272,6 +1363,12 @@ qemuDomainSecretPrepare(virConnectPtr conn, return -1; } + for (i = 0; i < vm->def->nserials; i++) { + if (qemuDomainSecretChardevPrepare(conn, driver, priv, + vm->def->serials[i]) < 0) + return -1; + } + return 0; } diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index a4ead86..3e4e21e 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -723,11 +723,23 @@ int qemuDomainSecretHostdevPrepare(virConnectPtr conn, virDomainHostdevDefPtr hostdev) ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3); +void qemuDomainSecretChardevDestroy(virDomainChrDefPtr chardev) + ATTRIBUTE_NONNULL(1); + +int qemuDomainSecretChardevPrepare(virConnectPtr conn, + virQEMUDriverPtr driver, + qemuDomainObjPrivatePtr priv, + virDomainChrDefPtr chardev) + ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3) + ATTRIBUTE_NONNULL(4); + void qemuDomainSecretDestroy(virDomainObjPtr vm) ATTRIBUTE_NONNULL(1); -int qemuDomainSecretPrepare(virConnectPtr conn, virDomainObjPtr vm) - ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2); +int qemuDomainSecretPrepare(virConnectPtr conn, + virQEMUDriverPtr driver, + virDomainObjPtr vm) + ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3); int qemuDomainDefValidateDiskLunSource(const virStorageSource *src) ATTRIBUTE_NONNULL(1); diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 4aa85e7..eb5de7b 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -1682,6 +1682,7 @@ int qemuDomainAttachChrDevice(virQEMUDriverPtr driver, if (qemuBuildTLSx509BackendProps(cfg->chardevTLSx509certdir, dev->data.tcp.listen, cfg->chardevTLSx509verify, + NULL, priv->qemuCaps, &tlsProps) < 0) goto cleanup; diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 7596579..9ca7f25 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4954,7 +4954,6 @@ qemuProcessPrepareDomain(virConnectPtr conn, size_t i; char *nodeset = NULL; qemuDomainObjPrivatePtr priv = vm->privateData; - virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver); virCapsPtr caps; if (!(caps = virQEMUDriverGetCapabilities(driver, false))) @@ -5020,8 +5019,8 @@ qemuProcessPrepareDomain(virConnectPtr conn, if (qemuDomainMasterKeyCreate(vm) < 0) goto cleanup; - VIR_DEBUG("Add secrets to disks and hostdevs"); - if (qemuDomainSecretPrepare(conn, vm) < 0) + VIR_DEBUG("Add secrets to disks, hostdevs, and chardevs"); + if (qemuDomainSecretPrepare(conn, driver, vm) < 0) goto cleanup; for (i = 0; i < vm->def->nchannels; i++) { @@ -5046,7 +5045,6 @@ qemuProcessPrepareDomain(virConnectPtr conn, cleanup: VIR_FREE(nodeset); virObjectUnref(caps); - virObjectUnref(cfg); return ret; } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args new file mode 100644 index 0000000..5859c74 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.args @@ -0,0 +1,38 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu \ +-name QEMUGuest1 \ +-S \ +-object secret,id=masterKey0,format=raw,\ +file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-M pc \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-nographic \ +-nodefconfig \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=readline \ +-no-acpi \ +-boot c \ +-usb \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ +-chardev udp,id=charserial0,host=127.0.0.1,port=2222,localaddr=127.0.0.1,\ +localport=1111 \ +-device isa-serial,chardev=charserial0,id=serial0 \ +-object secret,id=serial1-secret0,\ +data=9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1,\ +keyid=masterKey0,iv=AAECAwQFBgcICQoLDA0ODw==,format=base64 \ +-object tls-creds-x509,id=objserial1_tls0,dir=/etc/pki/libvirt-chardev,\ +endpoint=client,verify-peer=yes,passwordid=serial1-secret0 \ +-chardev socket,id=charserial1,host=127.0.0.1,port=5555,\ +tls-creds=objserial1_tls0 \ +-device isa-serial,chardev=charserial1,id=serial1 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.xml new file mode 100644 index 0000000..832e2a2 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-tlsx509-secret-chardev.xml @@ -0,0 +1,50 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <serial type='udp'> + <source mode='bind' host='127.0.0.1' service='1111'/> + <source mode='connect' host='127.0.0.1' service='2222'/> + <target port='0'/> + </serial> + <serial type='tcp'> + <source mode='connect' host='127.0.0.1' service='5555'/> + <protocol type='raw'/> + <target port='0'/> + </serial> + <console type='udp'> + <source mode='bind' host='127.0.0.1' service='1111'/> + <source mode='connect' host='127.0.0.1' service='2222'/> + <target type='serial' port='0'/> + </console> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> + </memballoon> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index ca48056..fa190e9 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1122,6 +1122,25 @@ mymain(void) DO_TEST("serial-tcp-tlsx509-chardev-disableTLS", QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_OBJECT_TLS_CREDS_X509); + VIR_FREE(driver.config->chardevTLSx509certdir); + if (VIR_STRDUP_QUIET(driver.config->chardevTLSx509certdir, "/etc/pki/libvirt-chardev") < 0) + return EXIT_FAILURE; + driver.config->chardevTLSx509verify = 1; + if (VIR_STRDUP_QUIET(driver.config->chardevTLSx509secretUUID, + "6fd3f62d-9fe7-4a4e-a869-7acd6376d8ea") < 0) + return EXIT_FAILURE; + driver.config->chardevTLSx509haveUUID = true; +# ifdef HAVE_GNUTLS_CIPHER_ENCRYPT + DO_TEST("serial-tcp-tlsx509-secret-chardev", + QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG, + QEMU_CAPS_OBJECT_SECRET, + QEMU_CAPS_OBJECT_TLS_CREDS_X509); +# else + DO_TEST_FAILURE("serial-tcp-tlsx509-secret-chardev", + QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG, + QEMU_CAPS_OBJECT_SECRET, + QEMU_CAPS_OBJECT_TLS_CREDS_X509); +# endif driver.config->chardevTLS = 0; VIR_FREE(driver.config->chardevTLSx509certdir); DO_TEST("serial-many-chardev", -- 2.7.4