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| author |   Yan, Zheng <zyan@redhat.com> | 2019-05-26 16:27:56 +0800 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2019-07-08 14:01:42 +0200 |
| commit | ac6713ccb5a6d13b59a2e3fda4fb049a2c4e0af2 (patch) | |
| tree | b97e61e509a3771db80edf64c3b211079faf4cc7 /fs/ceph/dir.c | |
| parent | ceph: rename struct ceph_acls_info to ceph_acl_sec_ctx (diff) | |
| download | linux-dev-ac6713ccb5a6d13b59a2e3fda4fb049a2c4e0af2.tar.xz linux-dev-ac6713ccb5a6d13b59a2e3fda4fb049a2c4e0af2.zip | |
ceph: add selinux support
When creating new file/directory, use security_dentry_init_security() to
prepare selinux context for the new inode, then send openc/mkdir request
to MDS, together with selinux xattr.
security_dentry_init_security() only supports single security module and
only selinux has dentry_init_security hook. So only selinux is supported
for now. We can add support for other security modules once kernel has a
generic version of dentry_init_security()
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/dir.c')
| -rw-r--r-- | fs/ceph/dir.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 14d795e5fa73..aab29f48c62d 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -839,6 +839,9 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry, err = ceph_pre_init_acls(dir, &mode, &as_ctx); if (err < 0) goto out; + err = ceph_security_init_secctx(dentry, mode, &as_ctx); + if (err < 0) + goto out; dout("mknod in dir %p dentry %p mode 0%ho rdev %d\n", dir, dentry, mode, rdev); @@ -884,6 +887,7 @@ static int ceph_symlink(struct inode *dir, struct dentry *dentry, struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb); struct ceph_mds_client *mdsc = fsc->mdsc; struct ceph_mds_request *req; + struct ceph_acl_sec_ctx as_ctx = {}; int err; if (ceph_snap(dir) != CEPH_NOSNAP) @@ -894,6 +898,10 @@ static int ceph_symlink(struct inode *dir, struct dentry *dentry, goto out; } + err = ceph_security_init_secctx(dentry, S_IFLNK | 0777, &as_ctx); + if (err < 0) + goto out; + dout("symlink in dir %p dentry %p to '%s'\n", dir, dentry, dest); req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SYMLINK, USE_AUTH_MDS); if (IS_ERR(req)) { @@ -919,6 +927,7 @@ static int ceph_symlink(struct inode *dir, struct dentry *dentry, out: if (err) d_drop(dentry); + ceph_release_acl_sec_ctx(&as_ctx); return err; } @@ -953,6 +962,9 @@ static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) err = ceph_pre_init_acls(dir, &mode, &as_ctx); if (err < 0) goto out; + err = ceph_security_init_secctx(dentry, mode, &as_ctx); + if (err < 0) + goto out; req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS); if (IS_ERR(req)) { |