+#ifdef CONFIG_NFSD_V4
+
+static int
+fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc)
+{
+ int len;
+ int migrated, i, err;
+
+ /* listsize */
+ err = get_int(mesg, &fsloc->locations_count);
+ if (err)
+ return err;
+ if (fsloc->locations_count > MAX_FS_LOCATIONS)
+ return -EINVAL;
+ if (fsloc->locations_count == 0)
+ return 0;
+
+ fsloc->locations = kzalloc(fsloc->locations_count
+ * sizeof(struct nfsd4_fs_location), GFP_KERNEL);
+ if (!fsloc->locations)
+ return -ENOMEM;
+ for (i=0; i < fsloc->locations_count; i++) {
+ /* colon separated host list */
+ err = -EINVAL;
+ len = qword_get(mesg, buf, PAGE_SIZE);
+ if (len <= 0)
+ goto out_free_all;
+ err = -ENOMEM;
+ fsloc->locations[i].hosts = kstrdup(buf, GFP_KERNEL);
+ if (!fsloc->locations[i].hosts)
+ goto out_free_all;
+ err = -EINVAL;
+ /* slash separated path component list */
+ len = qword_get(mesg, buf, PAGE_SIZE);
+ if (len <= 0)
+ goto out_free_all;
+ err = -ENOMEM;
+ fsloc->locations[i].path = kstrdup(buf, GFP_KERNEL);
+ if (!fsloc->locations[i].path)
+ goto out_free_all;
+ }
+ /* migrated */
+ err = get_int(mesg, &migrated);
+ if (err)
+ goto out_free_all;
+ err = -EINVAL;
+ if (migrated < 0 || migrated > 1)
+ goto out_free_all;
+ fsloc->migrated = migrated;
+ return 0;
+out_free_all:
+ nfsd4_fslocs_free(fsloc);
+ return err;
+}
+
+static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp)
+{
+ int listsize, err;
+ struct exp_flavor_info *f;
+
+ err = get_int(mesg, &listsize);
+ if (err)
+ return err;
+ if (listsize < 0 || listsize > MAX_SECINFO_LIST)
+ return -EINVAL;
+
+ for (f = exp->ex_flavors; f < exp->ex_flavors + listsize; f++) {
+ err = get_int(mesg, &f->pseudoflavor);
+ if (err)
+ return err;
+ /*
+ * XXX: It would be nice to also check whether this
+ * pseudoflavor is supported, so we can discover the
+ * problem at export time instead of when a client fails
+ * to authenticate.
+ */
+ err = get_int(mesg, &f->flags);
+ if (err)
+ return err;
+ /* Only some flags are allowed to differ between flavors: */
+ if (~NFSEXP_SECINFO_FLAGS & (f->flags ^ exp->ex_flags))
+ return -EINVAL;
+ }
+ exp->ex_nflavors = listsize;
+ return 0;
+}
+
+#else /* CONFIG_NFSD_V4 */
+static inline int
+fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc){return 0;}
+static inline int
+secinfo_parse(char **mesg, char *buf, struct svc_export *exp) { return 0; }
+#endif
+