[pve-devel] [PATCH qemu] pbs: add master key support

["Fabian Grünbichler" <f.gruenbichler@proxmox.com>]

this requires a new enough libproxmox-backup-qemu0, and allows querying
from the PVE side to avoid QMP calls with unsupported parameters.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---

Notes:
    requires versioned build and runtime dep on libproxmox-backup-qemu with changed API for masterkey support

 .../pve/0059-pbs-backup-add-masterkey.patch   | 96 +++++++++++++++++++
 debian/patches/series                         |  1 +
 2 files changed, 97 insertions(+)
 create mode 100644 debian/patches/pve/0059-pbs-backup-add-masterkey.patch

diff --git a/debian/patches/pve/0059-pbs-backup-add-masterkey.patch b/debian/patches/pve/0059-pbs-backup-add-masterkey.patch
new file mode 100644
index 0000000..12fce05
--- /dev/null
+++ b/debian/patches/pve/0059-pbs-backup-add-masterkey.patch
@@ -0,0 +1,96 @@
+Index: qemu/pve-backup.c
+===================================================================
+--- qemu.orig/pve-backup.c
++++ qemu/pve-backup.c
+@@ -539,6 +539,8 @@ typedef struct QmpBackupTask {
+     const char *keyfile;
+     bool has_key_password;
+     const char *key_password;
++    bool has_master_keyfile;
++    const char *master_keyfile;
+     bool has_backup_id;
+     const char *backup_id;
+     bool has_backup_time;
+@@ -710,6 +712,7 @@ static void coroutine_fn pvebackup_co_pr
+             task->has_password ? task->password : NULL,
+             task->has_keyfile ? task->keyfile : NULL,
+             task->has_key_password ? task->key_password : NULL,
++            task->has_master_keyfile ? task->master_keyfile : NULL,
+             task->has_compress ? task->compress : true,
+             task->has_encrypt ? task->encrypt : task->has_keyfile,
+             task->has_fingerprint ? task->fingerprint : NULL,
+@@ -989,6 +992,7 @@ UuidInfo *qmp_backup(
+     bool has_password, const char *password,
+     bool has_keyfile, const char *keyfile,
+     bool has_key_password, const char *key_password,
++    bool has_master_keyfile, const char *master_keyfile,
+     bool has_fingerprint, const char *fingerprint,
+     bool has_backup_id, const char *backup_id,
+     bool has_backup_time, int64_t backup_time,
+@@ -1009,6 +1013,8 @@ UuidInfo *qmp_backup(
+         .keyfile = keyfile,
+         .has_key_password = has_key_password,
+         .key_password = key_password,
++        .has_master_keyfile = has_master_keyfile,
++        .master_keyfile = master_keyfile,
+         .has_fingerprint = has_fingerprint,
+         .fingerprint = fingerprint,
+         .has_backup_id = has_backup_id,
+@@ -1131,5 +1137,6 @@ ProxmoxSupportStatus *qmp_query_proxmox_
+     ret->pbs_dirty_bitmap = true;
+     ret->query_bitmap_info = true;
+     ret->pbs_dirty_bitmap_migration = true;
++    ret->pbs_masterkey = true;
+     return ret;
+ }
+Index: qemu/block/monitor/block-hmp-cmds.c
+===================================================================
+--- qemu.orig/block/monitor/block-hmp-cmds.c
++++ qemu/block/monitor/block-hmp-cmds.c
+@@ -1035,6 +1035,7 @@ void hmp_backup(Monitor *mon, const QDic
+         false, NULL, // PBS password
+         false, NULL, // PBS keyfile
+         false, NULL, // PBS key_password
++        false, NULL, // PBS master_keyfile
+         false, NULL, // PBS fingerprint
+         false, NULL, // PBS backup-id
+         false, 0, // PBS backup-time
+Index: qemu/qapi/block-core.json
+===================================================================
+--- qemu.orig/qapi/block-core.json
++++ qemu/qapi/block-core.json
+@@ -827,6 +827,8 @@
+ #
+ # @key-password: password for keyfile (optional for format 'pbs')
+ #
++# @master_keyfile: PEM-formatted master public keyfile (optional for format 'pbs')
++#
+ # @fingerprint: server cert fingerprint (optional for format 'pbs')
+ #
+ # @backup-id: backup ID (required for format 'pbs')
+@@ -846,6 +848,7 @@
+                                     '*password': 'str',
+                                     '*keyfile': 'str',
+                                     '*key-password': 'str',
++                                    '*master_keyfile': 'str',
+                                     '*fingerprint': 'str',
+                                     '*backup-id': 'str',
+                                     '*backup-time': 'int',
+@@ -895,6 +898,9 @@
+ #                              migration cap if this is false/unset may lead
+ #                              to crashes on migration!
+ #
++# @pbs-masterkey: True if the QMP backup call supports the 'master_keyfile'
++#                 parameter.
++#
+ # @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
+ #
+ ##
+@@ -902,6 +908,7 @@
+   'data': { 'pbs-dirty-bitmap': 'bool',
+             'query-bitmap-info': 'bool',
+             'pbs-dirty-bitmap-migration': 'bool',
++            'pbs-masterkey': 'bool',
+             'pbs-library-version': 'str' } }
+ 
+ ##
diff --git a/debian/patches/series b/debian/patches/series
index 1ef7185..433efda 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -59,3 +59,4 @@ pve/0055-PVE-Migrate-dirty-bitmap-state-via-savevm.patch
 pve/0056-migration-block-dirty-bitmap-migrate-other-bitmaps-e.patch
 pve/0057-PVE-fix-aborting-multiple-CREATED-jobs-in-sequential.patch
 pve/0058-PVE-fall-back-to-open-iscsi-initiatorname.patch
+pve/0059-pbs-backup-add-masterkey.patch
-- 
2.20.1