[PATCH 10/12] qemu: Simplify qemuDomainSecretInfo

Peter Krempa posted 12 patches 3 years, 1 month ago
[PATCH 10/12] qemu: Simplify qemuDomainSecretInfo
Posted by Peter Krempa 3 years, 1 month ago
Now that we've removed support for plaintext secrets qemuDomainSecretInfo
can be simplified by removing the 'type' field and merging in all the
fields from 'qemuDomainSecretAES'.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
---
 src/qemu/qemu_backup.c           |  2 +-
 src/qemu/qemu_block.c            | 40 ++++++++++++----------------
 src/qemu/qemu_command.c          | 41 +++++++++++------------------
 src/qemu/qemu_domain.c           | 45 +++++++++-----------------------
 src/qemu/qemu_domain.h           | 20 +++-----------
 src/qemu/qemu_hotplug.c          |  4 +--
 src/qemu/qemu_migration_params.c |  2 +-
 tests/qemublocktest.c            | 13 ++++-----
 8 files changed, 56 insertions(+), 111 deletions(-)

diff --git a/src/qemu/qemu_backup.c b/src/qemu/qemu_backup.c
index 4f1e3b7bad..d7583e7399 100644
--- a/src/qemu/qemu_backup.c
+++ b/src/qemu/qemu_backup.c
@@ -723,7 +723,7 @@ qemuBackupBeginPrepareTLS(virDomainObj *vm,
         if (qemuBuildSecretInfoProps(secinfo, tlsSecretProps) < 0)
             return -1;

-        tlsKeySecretAlias = secinfo->s.aes.alias;
+        tlsKeySecretAlias = secinfo->alias;
     }

     if (qemuBuildTLSx509BackendProps(cfg->backupTLSx509certdir, true,
diff --git a/src/qemu/qemu_block.c b/src/qemu/qemu_block.c
index 0bc92f6a23..393d3f44d7 100644
--- a/src/qemu/qemu_block.c
+++ b/src/qemu/qemu_block.c
@@ -746,12 +746,12 @@ qemuBlockStorageSourceGetCURLProps(virStorageSource *src,
     if (!onlytarget) {
         if (src->auth) {
             username = src->auth->username;
-            passwordalias = srcPriv->secinfo->s.aes.alias;
+            passwordalias = srcPriv->secinfo->alias;
         }

         if (srcPriv &&
             srcPriv->httpcookie)
-            cookiealias = srcPriv->httpcookie->s.aes.alias;
+            cookiealias = srcPriv->httpcookie->alias;
     } else {
         /* format target string along with cookies */
         cookiestr = qemuBlockStorageSourceGetCookieString(src);
@@ -819,7 +819,7 @@ qemuBlockStorageSourceGetISCSIProps(virStorageSource *src,

     if (!onlytarget && src->auth) {
         username = src->auth->username;
-        objalias = srcPriv->secinfo->s.aes.alias;
+        objalias = srcPriv->secinfo->alias;
     }

     ignore_value(virJSONValueObjectCreate(&ret,
@@ -885,8 +885,8 @@ qemuBlockStorageSourceGetRBDProps(virStorageSource *src,
         return NULL;

     if (!onlytarget && src->auth) {
-        username = srcPriv->secinfo->s.aes.username;
-        keysecret = srcPriv->secinfo->s.aes.alias;
+        username = srcPriv->secinfo->username;
+        keysecret = srcPriv->secinfo->alias;
         /* the auth modes are modelled after our old command line generator */
         authmodes = virJSONValueNewArray();

@@ -1267,7 +1267,7 @@ qemuBlockStorageSourceGetFormatLUKSProps(virStorageSource *src,
 {
     qemuDomainStorageSourcePrivate *srcPriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(src);

-    if (!srcPriv || !srcPriv->encinfo || !srcPriv->encinfo->s.aes.alias) {
+    if (!srcPriv || !srcPriv->encinfo || !srcPriv->encinfo->alias) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("missing secret info for 'luks' driver"));
         return -1;
@@ -1275,7 +1275,7 @@ qemuBlockStorageSourceGetFormatLUKSProps(virStorageSource *src,

     if (virJSONValueObjectAdd(props,
                               "s:driver", "luks",
-                              "s:key-secret", srcPriv->encinfo->s.aes.alias,
+                              "s:key-secret", srcPriv->encinfo->alias,
                               NULL) < 0)
         return -1;

@@ -1313,14 +1313,9 @@ qemuBlockStorageSourceGetCryptoProps(virStorageSource *src,

     *encprops = NULL;

-    /* qemu requires encrypted secrets regardless of encryption method used when
-     * passed using the blockdev infrastructure, thus only
-     * VIR_DOMAIN_SECRET_INFO_TYPE_AES works here. The correct type needs to be
-     * instantiated elsewhere. */
     if (!src->encryption ||
         !srcpriv ||
-        !srcpriv->encinfo ||
-        srcpriv->encinfo->type != VIR_DOMAIN_SECRET_INFO_TYPE_AES)
+        !srcpriv->encinfo)
         return 0;

     switch ((virStorageEncryptionFormatType) src->encryption->format) {
@@ -1342,7 +1337,7 @@ qemuBlockStorageSourceGetCryptoProps(virStorageSource *src,

     return virJSONValueObjectCreate(encprops,
                                     "s:format", encformat,
-                                    "s:key-secret", srcpriv->encinfo->s.aes.alias,
+                                    "s:key-secret", srcpriv->encinfo->alias,
                                     NULL);
 }

@@ -1906,17 +1901,17 @@ qemuBlockStorageSourceDetachPrepare(virStorageSource *src,
     data->tlsAlias = g_strdup(src->tlsAlias);

     if (srcpriv) {
-        if (srcpriv->secinfo && srcpriv->secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
-            data->authsecretAlias = g_strdup(srcpriv->secinfo->s.aes.alias);
+        if (srcpriv->secinfo)
+            data->authsecretAlias = g_strdup(srcpriv->secinfo->alias);

-        if (srcpriv->encinfo && srcpriv->encinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
-            data->encryptsecretAlias = g_strdup(srcpriv->encinfo->s.aes.alias);
+        if (srcpriv->encinfo)
+            data->encryptsecretAlias = g_strdup(srcpriv->encinfo->alias);

         if (srcpriv->httpcookie)
-            data->httpcookiesecretAlias = g_strdup(srcpriv->httpcookie->s.aes.alias);
+            data->httpcookiesecretAlias = g_strdup(srcpriv->httpcookie->alias);

         if (srcpriv->tlsKeySecret)
-            data->tlsKeySecretAlias = g_strdup(srcpriv->tlsKeySecret->s.aes.alias);
+            data->tlsKeySecretAlias = g_strdup(srcpriv->tlsKeySecret->alias);
     }

     return g_steal_pointer(&data);
@@ -2319,9 +2314,8 @@ qemuBlockStorageSourceCreateGetEncryptionLUKS(virStorageSource *src,
     const char *keysecret = NULL;

     if (srcpriv &&
-        srcpriv->encinfo &&
-        srcpriv->encinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
-        keysecret = srcpriv->encinfo->s.aes.alias;
+        srcpriv->encinfo)
+        keysecret = srcpriv->encinfo->alias;

     if (virJSONValueObjectCreate(&props,
                                  "s:key-secret", keysecret,
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 0b87719f75..5b738b230e 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -707,9 +707,9 @@ qemuBuildSecretInfoProps(qemuDomainSecretInfo *secinfo,
         return -1;

     return qemuMonitorCreateObjectProps(propsret, "secret",
-                                        secinfo->s.aes.alias, "s:data",
-                                        secinfo->s.aes.ciphertext, "s:keyid",
-                                        keyid, "s:iv", secinfo->s.aes.iv,
+                                        secinfo->alias, "s:data",
+                                        secinfo->ciphertext, "s:keyid",
+                                        keyid, "s:iv", secinfo->iv,
                                         "s:format", "base64", NULL);
 }

@@ -763,20 +763,11 @@ static int
 qemuBuildRBDSecinfoURI(virBuffer *buf,
                        qemuDomainSecretInfo *secinfo)
 {
-    if (!secinfo) {
+    if (!secinfo)
         virBufferAddLit(buf, ":auth_supported=none");
-        return 0;
-    }
-
-    switch ((qemuDomainSecretInfoType) secinfo->type) {
-    case VIR_DOMAIN_SECRET_INFO_TYPE_AES:
+    else
         virBufferEscape(buf, '\\', ":", ":id=%s:auth_supported=cephx\\;none",
-                        secinfo->s.aes.username);
-        break;
-
-    case VIR_DOMAIN_SECRET_INFO_TYPE_LAST:
-        return -1;
-    }
+                        secinfo->username);

     return 0;
 }
@@ -1264,8 +1255,8 @@ qemuBuildDriveSourceStr(virDomainDiskDef *disk,

         virQEMUBuildBufferEscapeComma(buf, source);

-        if (secinfo && secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
-            virBufferAsprintf(buf, ",file.password-secret=%s", secinfo->s.aes.alias);
+        if (secinfo)
+            virBufferAsprintf(buf, ",file.password-secret=%s", secinfo->alias);

         if (disk->src->debug)
             virBufferAsprintf(buf, ",file.debug=%d", disk->src->debugLevel);
@@ -1282,12 +1273,12 @@ qemuBuildDriveSourceStr(virDomainDiskDef *disk,

     if (encinfo) {
         if (disk->src->format == VIR_STORAGE_FILE_RAW) {
-            virBufferAsprintf(buf, "key-secret=%s,", encinfo->s.aes.alias);
+            virBufferAsprintf(buf, "key-secret=%s,", encinfo->alias);
             rawluks = true;
         } else if (disk->src->format == VIR_STORAGE_FILE_QCOW2 &&
                    disk->src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS) {
             virBufferAddLit(buf, "encrypt.format=luks,");
-            virBufferAsprintf(buf, "encrypt.key-secret=%s,", encinfo->s.aes.alias);
+            virBufferAsprintf(buf, "encrypt.key-secret=%s,", encinfo->alias);
         }
     }

@@ -4886,7 +4877,7 @@ qemuBuildChrChardevStr(virLogManager *logManager,
                                                      qemuCaps) < 0)
                     return NULL;

-                tlsCertEncSecAlias = chrSourcePriv->secinfo->s.aes.alias;
+                tlsCertEncSecAlias = chrSourcePriv->secinfo->alias;
             }

             if (!(objalias = qemuAliasTLSObjFromSrcAlias(charAlias)))
@@ -5046,9 +5037,8 @@ qemuBuildHostdevSCSIDetachPrepare(virDomainHostdevDef *hostdev,
         ret->storageNodeName = src->nodestorage;
         ret->storageAttached = true;

-        if (srcpriv && srcpriv->secinfo &&
-            srcpriv->secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
-            ret->authsecretAlias = g_strdup(srcpriv->secinfo->s.aes.alias);
+        if (srcpriv && srcpriv->secinfo)
+            ret->authsecretAlias = g_strdup(srcpriv->secinfo->alias);

     } else {
         ret->driveAlias = qemuAliasFromHostdev(hostdev);
@@ -8012,7 +8002,7 @@ qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfig *cfg,
                                                      gfxPriv->secinfo,
                                                      qemuCaps) < 0)
                     return -1;
-                secretAlias = gfxPriv->secinfo->s.aes.alias;
+                secretAlias = gfxPriv->secinfo->alias;
             }

             if (qemuBuildTLSx509CommandLine(cmd,
@@ -10898,7 +10888,6 @@ qemuBuildStorageSourceAttachPrepareCommon(virStorageSource *src,

     if (srcpriv) {
         if (srcpriv->secinfo &&
-            srcpriv->secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES &&
             qemuBuildSecretInfoProps(srcpriv->secinfo, &data->authsecretProps) < 0)
             return -1;

@@ -10914,7 +10903,7 @@ qemuBuildStorageSourceAttachPrepareCommon(virStorageSource *src,
             if (qemuBuildSecretInfoProps(srcpriv->tlsKeySecret, &data->tlsKeySecretProps) < 0)
                 return -1;

-            tlsKeySecretAlias = srcpriv->tlsKeySecret->s.aes.alias;
+            tlsKeySecretAlias = srcpriv->tlsKeySecret->alias;
         }
     }

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index e9c1f3eacb..befe6bd476 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -657,19 +657,6 @@ qemuDomainMasterKeyCreate(virDomainObj *vm)
 }


-static void
-qemuDomainSecretAESClear(struct _qemuDomainSecretAES *secret,
-                         bool keepAlias)
-{
-    if (!keepAlias)
-        VIR_FREE(secret->alias);
-
-    VIR_FREE(secret->username);
-    VIR_FREE(secret->iv);
-    VIR_FREE(secret->ciphertext);
-}
-
-
 static void
 qemuDomainSecretInfoClear(qemuDomainSecretInfo *secinfo,
                           bool keepAlias)
@@ -677,14 +664,12 @@ qemuDomainSecretInfoClear(qemuDomainSecretInfo *secinfo,
     if (!secinfo)
         return;

-    switch ((qemuDomainSecretInfoType) secinfo->type) {
-    case VIR_DOMAIN_SECRET_INFO_TYPE_AES:
-        qemuDomainSecretAESClear(&secinfo->s.aes, keepAlias);
-        break;
+    if (!keepAlias)
+        VIR_FREE(secinfo->alias);

-    case VIR_DOMAIN_SECRET_INFO_TYPE_LAST:
-        break;
-    }
+    VIR_FREE(secinfo->username);
+    VIR_FREE(secinfo->iv);
+    VIR_FREE(secinfo->ciphertext);
 }


@@ -1106,9 +1091,8 @@ qemuDomainSecretAESSetup(qemuDomainObjPrivate *priv,

     secinfo = g_new0(qemuDomainSecretInfo, 1);

-    secinfo->type = VIR_DOMAIN_SECRET_INFO_TYPE_AES;
-    secinfo->s.aes.alias = g_strdup(alias);
-    secinfo->s.aes.username = g_strdup(username);
+    secinfo->alias = g_strdup(alias);
+    secinfo->username = g_strdup(username);

     raw_iv = g_new0(uint8_t, ivlen);

@@ -1117,7 +1101,7 @@ qemuDomainSecretAESSetup(qemuDomainObjPrivate *priv,
         return NULL;

     /* Encode the IV and save that since qemu will need it */
-    secinfo->s.aes.iv = g_base64_encode(raw_iv, ivlen);
+    secinfo->iv = g_base64_encode(raw_iv, ivlen);

     if (virCryptoEncryptData(VIR_CRYPTO_CIPHER_AES256CBC,
                              priv->masterKey, QEMU_DOMAIN_MASTER_KEY_LEN,
@@ -1126,8 +1110,7 @@ qemuDomainSecretAESSetup(qemuDomainObjPrivate *priv,
         return NULL;

     /* Now encode the ciphertext and store to be passed to qemu */
-    secinfo->s.aes.ciphertext = g_base64_encode(ciphertext,
-                                                ciphertextlen);
+    secinfo->ciphertext = g_base64_encode(ciphertext, ciphertextlen);

     return g_steal_pointer(&secinfo);
 }
@@ -1809,11 +1792,9 @@ qemuStorageSourcePrivateDataAssignSecinfo(qemuDomainSecretInfo **secinfo,

     if (!*secinfo) {
         *secinfo = g_new0(qemuDomainSecretInfo, 1);
-        (*secinfo)->type = VIR_DOMAIN_SECRET_INFO_TYPE_AES;
     }

-    if ((*secinfo)->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
-        (*secinfo)->s.aes.alias = g_steal_pointer(&*alias);
+    (*secinfo)->alias = g_steal_pointer(&*alias);

     return 0;
 }
@@ -1881,13 +1862,11 @@ qemuStorageSourcePrivateDataFormatSecinfo(virBuffer *buf,
                                           qemuDomainSecretInfo *secinfo,
                                           const char *type)
 {
-    if (!secinfo ||
-        secinfo->type != VIR_DOMAIN_SECRET_INFO_TYPE_AES ||
-        !secinfo->s.aes.alias)
+    if (!secinfo || !secinfo->alias)
         return;

     virBufferAsprintf(buf, "<secret type='%s' alias='%s'/>\n",
-                      type, secinfo->s.aes.alias);
+                      type, secinfo->alias);
 }


diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index cb5c665766..f8004efbb1 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -90,31 +90,17 @@ struct _qemuDomainUnpluggingDevice {
 #define QEMU_DEVICE_MAPPER_CONTROL_PATH "/dev/mapper/control"


-/* Type of domain secret */
-typedef enum {
-    VIR_DOMAIN_SECRET_INFO_TYPE_AES,  /* utilize GNUTLS_CIPHER_AES_256_CBC */
-
-    VIR_DOMAIN_SECRET_INFO_TYPE_LAST
-} qemuDomainSecretInfoType;
-
 #define QEMU_DOMAIN_AES_IV_LEN 16   /* 16 bytes for 128 bit random */
                                     /*    initialization vector */
-typedef struct _qemuDomainSecretAES qemuDomainSecretAES;
-struct _qemuDomainSecretAES {
+
+typedef struct _qemuDomainSecretInfo qemuDomainSecretInfo;
+struct _qemuDomainSecretInfo {
     char *username;
     char *alias;      /* generated alias for secret */
     char *iv;         /* base64 encoded initialization vector */
     char *ciphertext; /* encoded/encrypted secret */
 };

-typedef struct _qemuDomainSecretInfo qemuDomainSecretInfo;
-struct _qemuDomainSecretInfo {
-    qemuDomainSecretInfoType type;
-    union {
-        qemuDomainSecretAES aes;
-    } s;
-};
-
 typedef struct _qemuDomainObjPrivate qemuDomainObjPrivate;
 struct _qemuDomainObjPrivate {
     virQEMUDriver *driver;
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 9c16ab4567..9b0dcf2629 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1846,7 +1846,7 @@ qemuDomainGetTLSObjects(virQEMUCaps *qemuCaps,
         if (qemuBuildSecretInfoProps(secinfo, secProps) < 0)
             return -1;

-        secAlias = secinfo->s.aes.alias;
+        secAlias = secinfo->alias;
     }

     if (qemuBuildTLSx509BackendProps(tlsCertdir, tlsListen, tlsVerify,
@@ -1890,7 +1890,7 @@ qemuDomainAddChardevTLSObjects(virQEMUDriver *driver,
         secinfo = chrSourcePriv->secinfo;

     if (secinfo)
-        *secAlias = secinfo->s.aes.alias;
+        *secAlias = secinfo->alias;

     if (!(*tlsAlias = qemuAliasTLSObjFromSrcAlias(charAlias)))
         goto cleanup;
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 018e62cf6e..88dba3b999 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -955,7 +955,7 @@ qemuMigrationParamsEnableTLS(virQEMUDriver *driver,
               qemuDomainSecretInfoTLSNew(priv, QEMU_MIGRATION_TLS_ALIAS_BASE,
                                          cfg->migrateTLSx509secretUUID)))
             return -1;
-        secAlias = priv->migSecinfo->s.aes.alias;
+        secAlias = priv->migSecinfo->alias;
     }

     if (!(*tlsAlias = qemuAliasTLSObjFromSrcAlias(QEMU_MIGRATION_TLS_ALIAS_BASE)))
diff --git a/tests/qemublocktest.c b/tests/qemublocktest.c
index 4af8862c5b..3e61e923a9 100644
--- a/tests/qemublocktest.c
+++ b/tests/qemublocktest.c
@@ -235,19 +235,16 @@ testQemuDiskXMLToJSONFakeSecrets(virStorageSource *src)
     if (src->auth) {
         srcpriv->secinfo = g_new0(qemuDomainSecretInfo, 1);

-        srcpriv->secinfo->type = VIR_DOMAIN_SECRET_INFO_TYPE_AES;
-        srcpriv->secinfo->s.aes.username = g_strdup(src->auth->username);
-
-        srcpriv->secinfo->s.aes.alias = g_strdup_printf("%s-secalias",
-                                                        NULLSTR(src->nodestorage));
+        srcpriv->secinfo->username = g_strdup(src->auth->username);
+        srcpriv->secinfo->alias = g_strdup_printf("%s-secalias",
+                                                  NULLSTR(src->nodestorage));
     }

     if (src->encryption) {
         srcpriv->encinfo = g_new0(qemuDomainSecretInfo, 1);

-        srcpriv->encinfo->type = VIR_DOMAIN_SECRET_INFO_TYPE_AES;
-        srcpriv->encinfo->s.aes.alias = g_strdup_printf("%s-encalias",
-                                                        NULLSTR(src->nodeformat));
+        srcpriv->encinfo->alias = g_strdup_printf("%s-encalias",
+                                                  NULLSTR(src->nodeformat));
     }

     return 0;
-- 
2.31.1