/* $OpenBSD: xfs_message.c,v 1.3 1998/09/06 01:48:58 art Exp $ */ /* * Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the Kungliga Tekniska * Högskolan and its contributors. * * 4. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include RCSID("$KTH: xfs_message.c,v 1.16 1998/07/19 00:19:54 art Exp $"); int xfs_message_installroot(int fd, struct xfs_message_installroot *message, u_int size, struct proc *p) { int error = 0; XFSDEB(XDEBMSG, ("xfs_message_installroot\n")); if (xfs[fd].root != NULL) { printf("XFS WARNING! xfs_message_installroot: again!\n"); error = EBUSY; } else { error = new_xfs_node(&xfs[fd], &message->node, &xfs[fd].root, p); if (error) return error; xfs[fd].root->vn->v_flag |= VROOT; } return error; } int xfs_message_installnode(int fd, struct xfs_message_installnode *message, u_int size, struct proc *p) { int error = 0; struct xfs_node *n, *dp; XFSDEB(XDEBMSG, ("xfs_message_installnode\n")); dp = xfs_node_find(&xfs[fd], &message->parent_handle); if (dp) { error = new_xfs_node(&xfs[fd], &message->node, &n, p); if (error) return error; cache_purge (XNODE_TO_VNODE(dp)); xfs_dnlc_enter(XNODE_TO_VNODE(dp), message->name, XNODE_TO_VNODE(n)); vrele(XNODE_TO_VNODE(n)); } else { printf("XFS WARNING! xfs_message_installnode: no parent\n"); error = ENOENT; } XFSDEB(XDEBMSG, ("return: xfs_message_installnode: %d\n", error)); return error; } int xfs_message_installattr(int fd, struct xfs_message_installattr *message, u_int size, struct proc *p) { int error = 0; struct xfs_node *t; t = xfs_node_find(&xfs[fd], &message->node.handle); if (t != 0) { t->tokens = message->node.tokens; xfs_attr2vattr(&message->node.attr, &t->attr); bcopy(message->node.id, t->id, sizeof(t->id)); bcopy(message->node.rights, t->rights, sizeof(t->rights)); t->anonrights = message->node.anonrights; } else { printf("XFS WARNING! xfs_message_installattr: no node!\n"); error = ENOENT; } return error; } int xfs_message_installdata(int fd, struct xfs_message_installdata *message, u_int size, struct proc *p) { struct xfs_node *t; int error = 0; XFSDEB(XDEBMSG, ("xfs_message_installdata\n")); t = xfs_node_find(&xfs[fd], &message->node.handle); if (t != NULL) { struct nameidata nd; char tmp[CACHEHANDLESIZE + 1]; struct vnode *vp; bcopy((char *) &message->cache_handle.data, tmp, sizeof(tmp)); tmp[CACHEHANDLESIZE] = '\0'; XFSDEB(XDEBMSG, ("cache_handle = '%s'\n", tmp)); NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, tmp, p); error = namei(&nd); vp = nd.ni_vp; if (error == 0) { if (DATA_FROM_XNODE(t)) vrele(DATA_FROM_XNODE(t)); VOP_UNLOCK(vp, 0, p); DATA_FROM_XNODE(t) = vp; XFSDEB(XDEBMSG, ("xfs_message_installdata: t= %p tokens= %x\n", t, message->node.tokens)); t->tokens = message->node.tokens; xfs_attr2vattr(&message->node.attr, &t->attr); if (XNODE_TO_VNODE(t)->v_type == VDIR) cache_purge (XNODE_TO_VNODE(t)); bcopy(message->node.id, t->id, sizeof(t->id)); bcopy(message->node.rights, t->rights, sizeof(t->rights)); t->anonrights = message->node.anonrights; } else { printf("XFS WARNING! xfs_message_installdata fail!\n"); printf("Reason: lookup failed on cache file '%s', " "error = %d\n", tmp, error); } } else { printf("XFS WARNING! xfs_message_installdata failed\n"); printf("Reason: No node to install the data into!\n"); error = ENOENT; } return error; } int xfs_message_invalidnode(int fd, struct xfs_message_invalidnode *message, u_int size, struct proc *p) { int error = 0; struct xfs_node *t; XFSDEB(XDEBMSG, ("xfs_message_invalidnode\n")); t = xfs_node_find(&xfs[fd], &message->handle); if (t != 0) { /* XXX Really need to put back dirty data first. */ if (DATA_FROM_XNODE(t)) { vrele(DATA_FROM_XNODE(t)); DATA_FROM_XNODE(t) = (struct vnode *) 0; } XFS_TOKEN_CLEAR(t, ~0, XFS_OPEN_MASK | XFS_ATTR_MASK | XFS_DATA_MASK | XFS_LOCK_MASK); cache_purge(XNODE_TO_VNODE(t)); } else { printf("XFS WARNING! xfs_message_invalidnode: no node!\n"); error = ENOENT; } return error; }