+ if (NFS_BITMAP_ISSET(mattrs, NFS_MATTR_REALM)) {
+ xb_get_32(error, &xb, len);
+ if (!error && ((len < 1) || (len > MAXPATHLEN))) {
+ error = EINVAL;
+ }
+ nfsmerr_if(error);
+ /* allocate an extra byte for a leading '@' if its not already prepended to the realm */
+ MALLOC(nmp->nm_realm, char *, len + 2, M_TEMP, M_WAITOK | M_ZERO);
+ if (!nmp->nm_realm) {
+ error = ENOMEM;
+ }
+ nfsmerr_if(error);
+ error = xb_get_bytes(&xb, nmp->nm_realm, len, 0);
+ if (error == 0 && *nmp->nm_realm != '@') {
+ bcopy(nmp->nm_realm, &nmp->nm_realm[1], len);
+ nmp->nm_realm[0] = '@';
+ }
+ }
+ nfsmerr_if(error);
+
+ if (NFS_BITMAP_ISSET(mattrs, NFS_MATTR_PRINCIPAL)) {
+ xb_get_32(error, &xb, len);
+ if (!error && ((len < 1) || (len > MAXPATHLEN))) {
+ error = EINVAL;
+ }
+ nfsmerr_if(error);
+ MALLOC(nmp->nm_principal, char *, len + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!nmp->nm_principal) {
+ error = ENOMEM;
+ }
+ nfsmerr_if(error);
+ error = xb_get_bytes(&xb, nmp->nm_principal, len, 0);
+ }
+ nfsmerr_if(error);
+
+ if (NFS_BITMAP_ISSET(mattrs, NFS_MATTR_SVCPRINCIPAL)) {
+ xb_get_32(error, &xb, len);
+ if (!error && ((len < 1) || (len > MAXPATHLEN))) {
+ error = EINVAL;
+ }
+ nfsmerr_if(error);
+ MALLOC(nmp->nm_sprinc, char *, len + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!nmp->nm_sprinc) {
+ error = ENOMEM;
+ }
+ nfsmerr_if(error);
+ error = xb_get_bytes(&xb, nmp->nm_sprinc, len, 0);
+ }
+ nfsmerr_if(error);
+
+ if (NFS_BITMAP_ISSET(mattrs, NFS_MATTR_LOCAL_NFS_PORT)) {
+ if (nmp->nm_nfsport) {
+ error = EINVAL;
+ NFS_VFS_DBG("Can't have ports specified over incompatible socket families");
+ }
+ nfsmerr_if(error);
+ xb_get_32(error, &xb, len);
+ if (!error && ((len < 1) || (len > sizeof(((struct sockaddr_un *)0)->sun_path)))) {
+ error = EINVAL;
+ }
+ nfsmerr_if(error);
+ MALLOC(nmp->nm_nfs_localport, char *, len + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!nmp->nm_nfs_localport) {
+ error = ENOMEM;
+ }
+ nfsmerr_if(error);
+ error = xb_get_bytes(&xb, nmp->nm_nfs_localport, len, 0);
+ nmp->nm_sofamily = AF_LOCAL;
+ nmp->nm_nfsport = 1; /* We use the now deprecated tpcmux port to indcate that we have an AF_LOCAL port */
+ NFS_VFS_DBG("Setting nfs local port %s (%d)\n", nmp->nm_nfs_localport, nmp->nm_nfsport);
+ }
+ if (NFS_BITMAP_ISSET(mattrs, NFS_MATTR_LOCAL_MOUNT_PORT)) {
+ if (nmp->nm_mountport) {
+ error = EINVAL;
+ NFS_VFS_DBG("Can't have ports specified over mulitple socket families");
+ }
+ nfsmerr_if(error);
+ xb_get_32(error, &xb, len);
+ if (!error && ((len < 1) || (len > sizeof(((struct sockaddr_un *)0)->sun_path)))) {
+ error = EINVAL;
+ }
+ nfsmerr_if(error);
+ MALLOC(nmp->nm_mount_localport, char *, len + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!nmp->nm_mount_localport) {
+ error = ENOMEM;
+ }
+ nfsmerr_if(error);
+ error = xb_get_bytes(&xb, nmp->nm_mount_localport, len, 0);
+ nmp->nm_sofamily = AF_LOCAL;
+ nmp->nm_mountport = 1; /* We use the now deprecated tpcmux port to indcate that we have an AF_LOCAL port */
+ NFS_VFS_DBG("Setting mount local port %s (%d)\n", nmp->nm_mount_localport, nmp->nm_mountport);
+ }
+ if (NFS_BITMAP_ISSET(mattrs, NFS_MATTR_SET_MOUNT_OWNER)) {
+ xb_get_32(error, &xb, set_owner);
+ nfsmerr_if(error);
+ error = vfs_context_suser(ctx);
+ /*
+ * root can set owner to whatever, user can set owner to self
+ */
+ if ((error) && (set_owner == kauth_cred_getuid(vfs_context_ucred(ctx)))) {
+ /* ok for non-root can set owner to self */
+ error = 0;
+ }
+ nfsmerr_if(error);
+ }
+
projects / apple / xnu.git / blobdiff