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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-09-28 00:27:39 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-10-28 09:08:46 -0500 |
| commit | 7a4566b0b8fa67c7cd7be9f2969a085920356abb (patch) | |
| tree | 172736c4b5447ac02653d0597284bbda4b94bda5 | |
| parent | 85ff872d3f4a62d076d698bd1fa15ca2a4d7c100 (diff) | |
| download | linux-stable-7a4566b0b8fa67c7cd7be9f2969a085920356abb.tar.gz linux-stable-7a4566b0b8fa67c7cd7be9f2969a085920356abb.tar.bz2 linux-stable-7a4566b0b8fa67c7cd7be9f2969a085920356abb.zip | |
fs/9p: Add xattr callbacks for POSIX ACL
This patch implement fetching POSIX ACL from the server
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| -rw-r--r-- | fs/9p/acl.c | 41 | ||||
| -rw-r--r-- | fs/9p/xattr.c | 4 | ||||
| -rw-r--r-- | fs/9p/xattr.h | 2 |
3 files changed, 47 insertions, 0 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c index a8c013615a22..4293b4599ff6 100644 --- a/fs/9p/acl.c +++ b/fs/9p/acl.c @@ -94,3 +94,44 @@ int v9fs_check_acl(struct inode *inode, int mask) } return -EAGAIN; } + +static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name, + void *buffer, size_t size, int type) +{ + struct posix_acl *acl; + int error; + + if (strcmp(name, "") != 0) + return -EINVAL; + + acl = v9fs_get_cached_acl(dentry->d_inode, type); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + error = posix_acl_to_xattr(acl, buffer, size); + posix_acl_release(acl); + + return error; +} + +static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name, + const void *value, size_t size, + int flags, int type) +{ + return 0; +} + +const struct xattr_handler v9fs_xattr_acl_access_handler = { + .prefix = POSIX_ACL_XATTR_ACCESS, + .flags = ACL_TYPE_ACCESS, + .get = v9fs_xattr_get_acl, + .set = v9fs_xattr_set_acl, +}; + +const struct xattr_handler v9fs_xattr_acl_default_handler = { + .prefix = POSIX_ACL_XATTR_DEFAULT, + .flags = ACL_TYPE_DEFAULT, + .get = v9fs_xattr_get_acl, + .set = v9fs_xattr_set_acl, +}; diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c index 67ac6cfc1a07..43ec7df84336 100644 --- a/fs/9p/xattr.c +++ b/fs/9p/xattr.c @@ -164,5 +164,9 @@ ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) const struct xattr_handler *v9fs_xattr_handlers[] = { &v9fs_xattr_user_handler, +#ifdef CONFIG_9P_FS_POSIX_ACL + &v9fs_xattr_acl_access_handler, + &v9fs_xattr_acl_default_handler, +#endif NULL }; diff --git a/fs/9p/xattr.h b/fs/9p/xattr.h index ec908c693342..eaa837c53bd5 100644 --- a/fs/9p/xattr.h +++ b/fs/9p/xattr.h @@ -20,6 +20,8 @@ extern const struct xattr_handler *v9fs_xattr_handlers[]; extern struct xattr_handler v9fs_xattr_user_handler; +extern const struct xattr_handler v9fs_xattr_acl_access_handler; +extern const struct xattr_handler v9fs_xattr_acl_default_handler; extern ssize_t v9fs_fid_xattr_get(struct p9_fid *, const char *, void *, size_t); |