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| author | Eric W. Biederman <ebiederm@xmission.com> | 2013-01-31 13:49:40 +0100 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2013-02-13 15:00:56 +0100 |
| commit | 9522751cded17c231acd1cf92bc21b3da1b07f38 (patch) | |
| tree | 860881d6bd6eb1d06b45b0567dff9de32292c6f0 | |
| parent | coda: Allow coda to be built when user namespace support is enabled (diff) | |
| download | linux-9522751cded17c231acd1cf92bc21b3da1b07f38.tar.xz linux-9522751cded17c231acd1cf92bc21b3da1b07f38.zip | |
ocfs2: Handle kuids and kgids in acl/xattr conversions.
Explicitly deal with the different kinds of acls because they need
different conversions.
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
| -rw-r--r-- | fs/ocfs2/acl.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c index 260b16281fc3..8a404576fb26 100644 --- a/fs/ocfs2/acl.c +++ b/fs/ocfs2/acl.c @@ -65,7 +65,20 @@ static struct posix_acl *ocfs2_acl_from_xattr(const void *value, size_t size) acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag); acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm); - acl->a_entries[n].e_id = le32_to_cpu(entry->e_id); + switch(acl->a_entries[n].e_tag) { + case ACL_USER: + acl->a_entries[n].e_uid = + make_kuid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; + case ACL_GROUP: + acl->a_entries[n].e_gid = + make_kgid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; + default: + break; + } value += sizeof(struct posix_acl_entry); } @@ -91,7 +104,21 @@ static void *ocfs2_acl_to_xattr(const struct posix_acl *acl, size_t *size) for (n = 0; n < acl->a_count; n++, entry++) { entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); - entry->e_id = cpu_to_le32(acl->a_entries[n].e_id); + switch(acl->a_entries[n].e_tag) { + case ACL_USER: + entry->e_id = cpu_to_le32( + from_kuid(&init_user_ns, + acl->a_entries[n].e_uid)); + break; + case ACL_GROUP: + entry->e_id = cpu_to_le32( + from_kgid(&init_user_ns, + acl->a_entries[n].e_gid)); + break; + default: + entry->e_id = cpu_to_le32(ACL_UNDEFINED_ID); + break; + } } return ocfs2_acl; } |