LU-4647 nodemap: add mapping functionality

[fs/lustre-release.git] / lustre / mdt / mdt_xattr.c

diff --git a/lustre/mdt/mdt_xattr.c b/lustre/mdt/mdt_xattr.c
index 9678397..480377a 100644 (file)
--- a/lustre/mdt/mdt_xattr.c
+++ b/lustre/mdt/mdt_xattr.c
@@ -46,6 +46,8 @@
 #define DEBUG_SUBSYSTEM S_MDS
 
 #include <linux/xattr.h>
+#include <obd_class.h>
+#include <lustre_nodemap.h>
 #include <lustre_acl.h>
 #include "mdt_internal.h"
 
@@ -354,25 +356,27 @@ _out:
 int mdt_reint_setxattr(struct mdt_thread_info *info,
                        struct mdt_lock_handle *unused)
 {
-       struct ptlrpc_request   *req = mdt_info_req(info);
-       struct lu_ucred         *uc  = lu_ucred(info->mti_env);
-        struct mdt_lock_handle  *lh;
-        const struct lu_env     *env  = info->mti_env;
-        struct lu_buf           *buf  = &info->mti_buf;
-        struct mdt_reint_record *rr   = &info->mti_rr;
-        struct md_attr          *ma = &info->mti_attr;
-        struct lu_attr          *attr = &info->mti_attr.ma_attr;
-        struct mdt_object       *obj;
-        struct md_object        *child;
-        __u64                    valid = attr->la_valid;
+       struct ptlrpc_request   *req = mdt_info_req(info);
+       struct lu_ucred         *uc  = lu_ucred(info->mti_env);
+       struct mdt_lock_handle  *lh;
+       const struct lu_env     *env  = info->mti_env;
+       struct lu_buf           *buf  = &info->mti_buf;
+       struct mdt_reint_record *rr   = &info->mti_rr;
+       struct md_attr          *ma = &info->mti_attr;
+       struct lu_attr          *attr = &info->mti_attr.ma_attr;
+       struct mdt_object       *obj;
+       struct md_object        *child;
+       struct obd_export       *exp = info->mti_exp;
+       struct lu_nodemap       *nodemap = exp->exp_target_data.ted_nodemap;
+       __u64                    valid = attr->la_valid;
        const char              *xattr_name = rr->rr_name.ln_name;
-        int                      xattr_len = rr->rr_eadatalen;
-        __u64                    lockpart;
-        int                      rc;
-        posix_acl_xattr_header  *new_xattr = NULL;
-        __u32                    remote = exp_connect_rmtclient(info->mti_exp);
-        __u32                    perm;
-        ENTRY;
+       int                      xattr_len = rr->rr_eadatalen;
+       __u64                    lockpart;
+       int                      rc;
+       posix_acl_xattr_header  *new_xattr = NULL;
+       __u32                    remote = exp_connect_rmtclient(info->mti_exp);
+       __u32                    perm;
+       ENTRY;
 
         CDEBUG(D_INODE, "setxattr for "DFID"\n", PFID(rr->rr_fid1));
 
@@ -422,9 +426,19 @@ int mdt_reint_setxattr(struct mdt_thread_info *info,
        } else if ((valid & OBD_MD_FLXATTR) &&
                   (strcmp(xattr_name, XATTR_NAME_ACL_ACCESS) == 0 ||
                    strcmp(xattr_name, XATTR_NAME_ACL_DEFAULT) == 0)) {
+
                /* currently lustre limit acl access size */
                if (xattr_len > LUSTRE_POSIX_ACL_MAX_SIZE)
                        GOTO(out, rc = -ERANGE);
+
+               rc = nodemap_map_acl(nodemap, rr->rr_eadata, xattr_len,
+                                    NODEMAP_CLIENT_TO_FS);
+               if (rc < 0)
+                       GOTO(out, rc);
+
+               /* ACLs were mapped out, return an error so the user knows */
+               if (rc != xattr_len)
+                       GOTO(out, rc = -EPERM);
        }
 
         lockpart = MDS_INODELOCK_UPDATE;
@@ -447,8 +461,8 @@ int mdt_reint_setxattr(struct mdt_thread_info *info,
          * to cancel them. */
         mdt_lock_reg_init(lh, LCK_EX);
         obj = mdt_object_find_lock(info, rr->rr_fid1, lh, lockpart);
-        if (IS_ERR(obj))
-                GOTO(out, rc =  PTR_ERR(obj));
+       if (IS_ERR(obj))
+               GOTO(out, rc = PTR_ERR(obj));
 
        tgt_vbr_obj_set(env, mdt_obj2dt(obj));
        rc = mdt_version_get_check_save(info, obj, 0);
@@ -464,10 +478,10 @@ int mdt_reint_setxattr(struct mdt_thread_info *info,
                      PFID(rr->rr_fid1), valid);
                attr->la_ctime = cfs_time_current_sec();
        }
-        attr->la_valid = LA_CTIME;
-        child = mdt_object_child(obj);
-        if (valid & OBD_MD_FLXATTR) {
-                char *xattr = (void *)rr->rr_eadata;
+       attr->la_valid = LA_CTIME;
+       child = mdt_object_child(obj);
+       if (valid & OBD_MD_FLXATTR) {
+               char *xattr = rr->rr_eadata;
 
                 if (xattr_len > 0) {
                         int flags = 0;