[libvirt] [PATCH v3 09/10] qemu: Alter the qemuDomainGetSecretAESAlias to add new arg

[John Ferlan]

Soon we will be adding luks encryption support. Since a volume could require
both a luks secret and a secret to give to the server to use of the device,
alter the alias generation to create a slightly different alias so that
we don't have two objects with the same alias.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/qemu/qemu_alias.c   | 10 ++++++++--
 src/qemu/qemu_alias.h   |  3 ++-
 src/qemu/qemu_domain.c  | 17 ++++++++++-------
 src/qemu/qemu_hotplug.c |  3 ++-
 4 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index d624071..51a654a 100644
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -485,13 +485,16 @@ qemuDomainGetMasterKeyAlias(void)
 
 
 /* qemuDomainGetSecretAESAlias:
+ * @srcalias: Source alias used to generate the secret alias
+ * @isLuks: True when we are generating a secret for LUKS encrypt/decrypt
  *
  * Generate and return an alias for the encrypted secret
  *
  * Returns NULL or a string containing the alias
  */
 char *
-qemuDomainGetSecretAESAlias(const char *srcalias)
+qemuDomainGetSecretAESAlias(const char *srcalias,
+                            bool isLuks)
 {
     char *alias;
 
@@ -501,7 +504,10 @@ qemuDomainGetSecretAESAlias(const char *srcalias)
         return NULL;
     }
 
-    ignore_value(virAsprintf(&alias, "%s-secret0", srcalias));
+    if (isLuks)
+        ignore_value(virAsprintf(&alias, "%s-luks-secret0", srcalias));
+    else
+        ignore_value(virAsprintf(&alias, "%s-secret0", srcalias));
 
     return alias;
 }
diff --git a/src/qemu/qemu_alias.h b/src/qemu/qemu_alias.h
index e328a9b..d1c6ba8 100644
--- a/src/qemu/qemu_alias.h
+++ b/src/qemu/qemu_alias.h
@@ -69,6 +69,7 @@ char *qemuAliasFromDisk(const virDomainDiskDef *disk);
 
 char *qemuDomainGetMasterKeyAlias(void);
 
-char *qemuDomainGetSecretAESAlias(const char *srcalias);
+char *qemuDomainGetSecretAESAlias(const char *srcalias,
+                                  bool isLuks);
 
 #endif /* __QEMU_ALIAS_H__*/
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 938b524..d51e82b 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -847,6 +847,7 @@ qemuDomainSecretPlainSetup(virConnectPtr conn,
  * @secretUsageType: The virSecretUsageType
  * @username: username to use for authentication (may be NULL)
  * @seclookupdef: Pointer to seclookupdef data
+ * @isLuks: True/False for is for luks (alias generation)
  *
  * Taking a secinfo, fill in the AES specific information using the
  *
@@ -859,7 +860,8 @@ qemuDomainSecretAESSetup(virConnectPtr conn,
                          const char *srcalias,
                          virSecretUsageType secretUsageType,
                          const char *username,
-                         virSecretLookupTypeDefPtr seclookupdef)
+                         virSecretLookupTypeDefPtr seclookupdef,
+                         bool isLuks)
 {
     int ret = -1;
     uint8_t *raw_iv = NULL;
@@ -873,7 +875,7 @@ qemuDomainSecretAESSetup(virConnectPtr conn,
     if (VIR_STRDUP(secinfo->s.aes.username, username) < 0)
         return -1;
 
-    if (!(secinfo->s.aes.alias = qemuDomainGetSecretAESAlias(srcalias)))
+    if (!(secinfo->s.aes.alias = qemuDomainGetSecretAESAlias(srcalias, isLuks)))
         return -1;
 
     /* Create a random initialization vector */
@@ -922,6 +924,7 @@ qemuDomainSecretAESSetup(virConnectPtr conn,
  * @secretUsageType: The virSecretUsageType
  * @username: username to use for authentication (may be NULL)
  * @seclookupdef: Pointer to seclookupdef data
+ * @isLuks: True when is luks (generates different alias)
  *
  * If we have the encryption API present and can support a secret object, then
  * build the AES secret; otherwise, build the Plain secret. This is the magic
@@ -937,14 +940,15 @@ qemuDomainSecretSetup(virConnectPtr conn,
                       const char *srcalias,
                       virSecretUsageType secretUsageType,
                       const char *username,
-                      virSecretLookupTypeDefPtr seclookupdef)
+                      virSecretLookupTypeDefPtr seclookupdef,
+                      bool isLuks)
 {
     if (virCryptoHaveCipher(VIR_CRYPTO_CIPHER_AES256CBC) &&
         virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_SECRET) &&
         secretUsageType == VIR_SECRET_USAGE_TYPE_CEPH) {
         if (qemuDomainSecretAESSetup(conn, priv, secinfo, srcalias,
                                      secretUsageType, username,
-                                     seclookupdef) < 0)
+                                     seclookupdef, isLuks) < 0)
             return -1;
     } else {
         if (qemuDomainSecretPlainSetup(conn, secinfo, secretUsageType,
@@ -1004,7 +1008,6 @@ qemuDomainSecretDiskPrepare(virConnectPtr conn,
     qemuDomainSecretInfoPtr secinfo = NULL;
 
     if (conn && qemuDomainSecretDiskCapable(src)) {
-
         virSecretUsageType secretUsageType = VIR_SECRET_USAGE_TYPE_ISCSI;
         qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
 
@@ -1016,7 +1019,7 @@ qemuDomainSecretDiskPrepare(virConnectPtr conn,
 
         if (qemuDomainSecretSetup(conn, priv, secinfo, disk->info.alias,
                                   secretUsageType, src->auth->username,
-                                  &src->auth->seclookupdef) < 0)
+                                  &src->auth->seclookupdef, false) < 0)
             goto error;
 
         diskPriv->secinfo = secinfo;
@@ -1083,7 +1086,7 @@ qemuDomainSecretHostdevPrepare(virConnectPtr conn,
             if (qemuDomainSecretSetup(conn, priv, secinfo, hostdev->info->alias,
                                       VIR_SECRET_USAGE_TYPE_ISCSI,
                                       iscsisrc->auth->username,
-                                      &iscsisrc->auth->seclookupdef) < 0)
+                                      &iscsisrc->auth->seclookupdef, false) < 0)
                 goto error;
 
             hostdevPriv->secinfo = secinfo;
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index fbe3cb8..8acb69d 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -2829,7 +2829,8 @@ qemuDomainRemoveDiskDevice(virQEMUDriverPtr driver,
     if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_SECRET) &&
         qemuDomainSecretDiskCapable(disk->src)) {
 
-        if (!(objAlias = qemuDomainGetSecretAESAlias(disk->info.alias))) {
+        if (!(objAlias =
+              qemuDomainGetSecretAESAlias(disk->info.alias, false))) {
             VIR_FREE(drivestr);
             return -1;
         }
-- 
2.5.5