Re: [libvirt] [PATCH 05/18] conf: Extend TPM XML parser with encryption support

Extend the TPM device XML parser and XML generator with emulator state encryption support. Signed-off-by: Stefan Berger <stefanb(a)linux.ibm.com&gt;

--- src/conf/domain_conf.c | 40 +++++++++++++++++++++++++++++++++++++++- src/conf/domain_conf.h | 1 + 2 files changed, 40 insertions(+), 1 deletion(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 3323c9a5b1..df6238c299 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2950,6 +2950,7 @@ void virDomainTPMDefFree(virDomainTPMDefPtr def) virDomainChrSourceDefClear(&def->data.emulator.source); VIR_FREE(def->data.emulator.storagepath); VIR_FREE(def->data.emulator.logfile); + virStorageEncryptionFree(def->data.emulator.encryption); break; case VIR_DOMAIN_TPM_TYPE_LAST: break; @@ -13048,6 +13049,16 @@ virDomainSmartcardDefParseXML(virDomainXMLOptionPtr xmlopt, * <tpm model='tpm-tis'> * <backend type='emulator' version='2'/> * </tpm> + * + * Emulator state encryption is supported with the following: + * + * <tpm model='tpm-tis'> + * <backend type='emulator' version='2'> + * <encryption format='vtpm'> + * <secret type='passphrase' uuid='32ee7e76-2178-47a1-ab7b-269e6e348015'/> + * </encryption> + * </backend> + * </tpm> */ static virDomainTPMDefPtr virDomainTPMDefParseXML(virDomainXMLOptionPtr xmlopt, @@ -13063,6 +13074,7 @@ virDomainTPMDefParseXML(virDomainXMLOptionPtr xmlopt, VIR_AUTOFREE(char *) backend = NULL; VIR_AUTOFREE(char *) version = NULL; VIR_AUTOFREE(xmlNodePtr *) backends = NULL; + xmlNodePtr encnode = NULL; if (VIR_ALLOC(def) < 0) return NULL; @@ -13126,6 +13138,21 @@ virDomainTPMDefParseXML(virDomainXMLOptionPtr xmlopt, def->data.passthrough.source.type = VIR_DOMAIN_CHR_TYPE_DEV; break; case VIR_DOMAIN_TPM_TYPE_EMULATOR: + encnode = virXPathNode("./backend/encryption", ctxt); + if (encnode) { + def->data.emulator.encryption = + virStorageEncryptionParseNode(encnode, ctxt); + if (!def->data.emulator.encryption) + goto error; + if (def->data.emulator.encryption->format != + VIR_STORAGE_ENCRYPTION_FORMAT_VTPM) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Unsupported vTPM encryption type '%s'"), + virStorageEncryptionFormatTypeToString( + def->data.emulator.encryption->format)); + goto error; + } + } break; case VIR_DOMAIN_TPM_TYPE_LAST: goto error; @@ -25949,8 +25976,19 @@ virDomainTPMDefFormat(virBufferPtr buf, virBufferAddLit(buf, "</backend>\n"); break; case VIR_DOMAIN_TPM_TYPE_EMULATOR: - virBufferAsprintf(buf, " version='%s'/>\n", + virBufferAsprintf(buf, " version='%s'", virDomainTPMVersionTypeToString(def->version)); + if (def->data.emulator.encryption) { + virBufferAddLit(buf, ">\n"); + virBufferAdjustIndent(buf, 2); + if (virStorageEncryptionFormat(buf, + def->data.emulator.encryption) < 0) + return -1; + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</backend>\n"); + } else { + virBufferAddLit(buf, "/>\n"); + } break; case VIR_DOMAIN_TPM_TYPE_LAST: break; diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index c1b5fc1337..a03986623a 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1270,6 +1270,7 @@ struct _virDomainTPMDef { virDomainChrSourceDef source; char *storagepath; char *logfile; + virStorageEncryptionPtr encryption; } emulator; } data; }; -- 2.20.1