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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-09-28 00:27:41 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-10-28 09:08:46 -0500 |
| commit | 76381a42e4a5606774fd48413e6282cd7130ff2c (patch) | |
| tree | b7d6f73804b1bb7bca4198991c42122fa6ff159e /fs/9p/v9fs.c | |
| parent | ad77dbce567128d59b37a14c9562c8af6f63aeca (diff) | |
| download | lwn-76381a42e4a5606774fd48413e6282cd7130ff2c.tar.gz lwn-76381a42e4a5606774fd48413e6282cd7130ff2c.zip | |
fs/9p: Add access = client option to opt in acl evaluation.
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>
Diffstat (limited to 'fs/9p/v9fs.c')
| -rw-r--r-- | fs/9p/v9fs.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 38dc0e067599..2f77cd33ba83 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -193,7 +193,17 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) v9ses->flags |= V9FS_ACCESS_USER; else if (strcmp(s, "any") == 0) v9ses->flags |= V9FS_ACCESS_ANY; - else { + else if (strcmp(s, "client") == 0) { +#ifdef CONFIG_9P_FS_POSIX_ACL + v9ses->flags |= V9FS_ACCESS_CLIENT; +#else + P9_DPRINTK(P9_DEBUG_ERROR, + "access=client option not supported\n"); + kfree(s); + ret = -EINVAL; + goto free_and_return; +#endif + } else { v9ses->flags |= V9FS_ACCESS_SINGLE; v9ses->uid = simple_strtoul(s, &e, 10); if (*e != '\0') @@ -278,6 +288,16 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ; + if (!v9fs_proto_dotl(v9ses) && + ((v9ses->flags & V9FS_ACCESS_MASK) == V9FS_ACCESS_CLIENT)) { + /* + * We support ACCESS_CLIENT only for dotl. + * Fall back to ACCESS_USER + */ + v9ses->flags &= ~V9FS_ACCESS_MASK; + v9ses->flags |= V9FS_ACCESS_USER; + } + /*FIXME !! */ /* for legacy mode, fall back to V9FS_ACCESS_ANY */ if (!(v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses)) && ((v9ses->flags&V9FS_ACCESS_MASK) == V9FS_ACCESS_USER)) { |