[libvirt] [PATCH v2 0/5] storage: fs: tweak dir perms handling on build

Consider the following issue - Using virt-manager with qemu:///session - User adds a storage pool pointing at /tmp. No explicit permissions are requested in the XML - virt-manager calls PoolDefine, then PoolBuild - libvirt tries to unconditionally chmod 755 /tmp. This fails because my user doesn't own root. Pool build fails, virt-manager reports failure Yes there's a couple ways we could avoid this specific case in virt-manager, but I think it makes more sense to have pool.build on a directory be a no-op in this case. The following patches address this. I already pushed some bits of v1 of the series. Now the patches are: - Patch 1 (new) fixes a bug in the previous patches I pushed - Patch 2 (new) changes storage XML to not output -1 for owner/group - Patch 3 changes storage XML to not hardcode a <mode> value if the user didn't specify one in. - Patch 4 (new) drops a redundant flag to virDirCreate - Patch 5 makes pool.build skip dir chmod unless the user explicitly requested <mode> via the XML. However if a mode is required for mkdir, continue to use the previous default. v2: Add patches 1, 3, 4, adjust other patches to match Style fix in patch 5 Cole Robinson (5): virfile: virDirCreate: Fix ALLOW_EXIST conditional storage: conf: Don't output owner/group -1 storage: conf: Don't set any default <mode> in the XML virfile: virDirCreate: Drop redundand FORCE_PERMS flag storage: fs: Only force directory permissions if required docs/schemas/storagecommon.rng | 36 ++++++++------ src/conf/storage_conf.c | 57 +++++++++++----------- src/storage/storage_backend.c | 20 ++++++-- src/storage/storage_backend.h | 3 ++ src/storage/storage_backend_fs.c | 21 +++++--- src/storage/storage_backend_logical.c | 4 +- src/util/virfile.c | 8 ++- src/util/virfile.h | 3 +- tests/storagepoolxml2xmlout/pool-dir-naming.xml | 2 - tests/storagepoolxml2xmlout/pool-dir.xml | 2 - tests/storagepoolxml2xmlout/pool-netfs-gluster.xml | 3 -- tests/storagevolxml2xmlin/vol-file.xml | 4 +- .../vol-gluster-dir-neg-uid.xml | 2 - tests/storagevolxml2xmlout/vol-gluster-dir.xml | 3 -- tests/storagevolxml2xmlout/vol-sheepdog.xml | 3 -- 15 files changed, 91 insertions(+), 80 deletions(-) -- 2.4.0