diff options
author | Rahat Mahmood <rahat@google.com> | 2020-08-28 14:29:16 -0700 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2020-08-28 14:31:11 -0700 |
commit | b4820e598681c61fbf0e8a7f4d3436d2599ce53c (patch) | |
tree | 9e7c5770ba0edba0ae77f35300803c13d6914970 /pkg/sentry/vfs | |
parent | bdd5996a73b14d6f6600ab7aa00cdaed459cab16 (diff) |
Implement StatFS for various VFS2 filesystems.
This mainly involved enabling kernfs' client filesystems to provide a
StatFS implementation.
Fixes #3411, #3515.
PiperOrigin-RevId: 329009864
Diffstat (limited to 'pkg/sentry/vfs')
-rw-r--r-- | pkg/sentry/vfs/filesystem_impl_util.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/pkg/sentry/vfs/filesystem_impl_util.go b/pkg/sentry/vfs/filesystem_impl_util.go index 465e610e0..2620cf975 100644 --- a/pkg/sentry/vfs/filesystem_impl_util.go +++ b/pkg/sentry/vfs/filesystem_impl_util.go @@ -16,6 +16,9 @@ package vfs import ( "strings" + + "gvisor.dev/gvisor/pkg/abi/linux" + "gvisor.dev/gvisor/pkg/usermem" ) // GenericParseMountOptions parses a comma-separated list of options of the @@ -41,3 +44,13 @@ func GenericParseMountOptions(str string) map[string]string { } return m } + +// GenericStatFS returns a statfs struct filled with the common fields for a +// general filesystem. This is analogous to Linux's fs/libfs.cs:simple_statfs(). +func GenericStatFS(fsMagic uint64) linux.Statfs { + return linux.Statfs{ + Type: fsMagic, + BlockSize: usermem.PageSize, + NameLength: linux.NAME_MAX, + } +} |