516 lines
14 KiB
C
516 lines
14 KiB
C
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/*
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* Copyright (c) 1999, Boris Popov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Boris Popov.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "opt_ncp.h"
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#ifndef NCP
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#error "NWFS requires NCP protocol"
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <netncp/ncp.h>
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#include <netncp/ncp_conn.h>
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#include <netncp/ncp_sock.h>
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#include <netncp/ncp_subr.h>
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#include <netncp/ncp_ncp.h>
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#include <netncp/ncp_rq.h>
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#include <netncp/ncp_nls.h>
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#include <nwfs/nwfs.h>
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#include <nwfs/nwfs_node.h>
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#include <nwfs/nwfs_subr.h>
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int nwfs_debuglevel = 0;
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static int nwfs_version = NWFS_VERSION;
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SYSCTL_DECL(_vfs_nwfs);
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SYSCTL_NODE(_vfs, OID_AUTO, nwfs, CTLFLAG_RW, 0, "Netware file system");
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SYSCTL_INT(_vfs_nwfs, OID_AUTO, version, CTLFLAG_RD, &nwfs_version, 0, "");
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SYSCTL_INT(_vfs_nwfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nwfs_debuglevel, 0, "");
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static int nwfs_mount __P((struct mount *, char *, caddr_t,
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struct nameidata *, struct proc *));
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static int nwfs_quotactl __P((struct mount *, int, uid_t, caddr_t,
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struct proc *));
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static int nwfs_root __P((struct mount *, struct vnode **));
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static int nwfs_start __P((struct mount *, int, struct proc *));
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static int nwfs_statfs __P((struct mount *, struct statfs *,
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struct proc *));
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static int nwfs_sync __P((struct mount *, int, struct ucred *,
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struct proc *));
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static int nwfs_unmount __P((struct mount *, int, struct proc *));
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static int nwfs_init __P((struct vfsconf *vfsp));
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static int nwfs_uninit __P((struct vfsconf *vfsp));
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static struct vfsops nwfs_vfsops = {
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nwfs_mount,
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nwfs_start,
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nwfs_unmount,
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nwfs_root,
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nwfs_quotactl,
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nwfs_statfs,
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nwfs_sync,
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vfs_stdvget,
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vfs_stdfhtovp, /* shouldn't happen */
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vfs_stdcheckexp,
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vfs_stdvptofh, /* shouldn't happen */
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nwfs_init,
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nwfs_uninit
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};
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VFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK);
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int nwfs_pbuf_freecnt = -1; /* start out unlimited */
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static int nwfsid = 1;
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static int
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nwfs_initnls(struct nwmount *nmp) {
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char *pc, *pe;
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int error = 0;
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#define COPY_TABLE(t,d) { \
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if (t) { \
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error = copyin((t), pc, 256); \
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if (error) break; \
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} else \
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bcopy(d, pc, 256); \
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(t) = pc; pc += 256; \
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}
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nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS;
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if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
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nmp->m.nls.tolower = ncp_defnls.tolower;
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nmp->m.nls.toupper = ncp_defnls.toupper;
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nmp->m.nls.n2u = ncp_defnls.n2u;
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nmp->m.nls.u2n = ncp_defnls.u2n;
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return 0;
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}
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MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK);
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if (pe == NULL) return ENOMEM;
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pc = pe;
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do {
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COPY_TABLE(nmp->m.nls.tolower, ncp_defnls.tolower);
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COPY_TABLE(nmp->m.nls.toupper, ncp_defnls.toupper);
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COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
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COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
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} while(0);
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if (error) {
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free(pe, M_NWFSDATA);
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return error;
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}
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return 0;
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}
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/*
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* mp - path - addr in user space of mount point (ie /usr or whatever)
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* data - addr in user space of mount params
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*/
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static int nwfs_mount(struct mount *mp, char *path, caddr_t data,
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struct nameidata *ndp, struct proc *p)
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{
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struct nwfs_args args; /* will hold data from mount request */
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size_t size;
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int error;
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struct nwmount *nmp = NULL;
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struct ncp_conn *conn = NULL;
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struct ncp_handle *handle = NULL;
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struct vnode *vp;
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char *pc,*pe;
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if (data == NULL) {
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nwfs_printf("missing data argument\n");
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return 1;
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}
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if (mp->mnt_flag & MNT_UPDATE) {
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nwfs_printf("MNT_UPDATE not implemented");
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return (EOPNOTSUPP);
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}
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error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
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if (error)
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return (error);
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if (args.version != NWFS_VERSION) {
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nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
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return (1);
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}
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error = ncp_conn_getbyref(args.connRef,p,p->p_ucred,NCPM_EXECUTE,&conn);
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if (error) {
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nwfs_printf("invalid connection refernce %d\n",args.connRef);
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return (error);
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}
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error = ncp_conn_gethandle(conn, NULL, &handle);
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if (error) {
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nwfs_printf("can't get connection handle\n");
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return (error);
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}
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ncp_conn_unlock(conn,p); /* we keep the ref */
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mp->mnt_stat.f_iosize = conn->buffer_size;
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/* We must malloc our own mount info */
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MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA,M_USE_RESERVE);
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if (nmp == NULL) {
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nwfs_printf("could not alloc nwmount\n");
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error = ENOMEM;
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goto bad;
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}
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bzero(nmp,sizeof(*nmp));
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mp->mnt_data = (qaddr_t)nmp;
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nmp->connh = handle;
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nmp->n_root = NULL;
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nmp->n_id = nwfsid++;
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nmp->m = args;
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nmp->m.file_mode = (nmp->m.file_mode &
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(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
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nmp->m.dir_mode = (nmp->m.dir_mode &
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(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
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if ((error = nwfs_initnls(nmp)) != 0) goto bad;
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(void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
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bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
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pc = mp->mnt_stat.f_mntfromname;
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pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
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bzero(pc, MNAMELEN);
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*(pc++) = '/';
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pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
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if (pc < pe-1) {
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*(pc++) = ':';
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pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
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if (pc < pe-1) {
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*(pc++) = '/';
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strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
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}
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}
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/* protect against invalid mount points */
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nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
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vfs_getnewfsid(mp);
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error = nwfs_root(mp, &vp);
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if (error)
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goto bad;
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/*
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* Lose the lock but keep the ref.
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*/
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VOP_UNLOCK(vp, 0, curproc);
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NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_usecount);
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return error;
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bad:
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if (nmp)
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free(nmp, M_NWFSDATA);
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if (handle)
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ncp_conn_puthandle(handle, NULL, 0);
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return error;
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}
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/* Unmount the filesystem described by mp. */
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static int
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nwfs_unmount(struct mount *mp, int mntflags, struct proc *p)
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{
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struct nwmount *nmp = VFSTONWFS(mp);
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struct ncp_conn *conn;
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struct vnode *vp;
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int error, flags;
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NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
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flags = 0;
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if (mntflags & MNT_FORCE)
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flags |= FORCECLOSE;
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error = VFS_ROOT(mp,&vp);
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if (error) return (error);
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if (vp->v_usecount > 2) {
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printf("nwfs_unmount: usecnt=%d\n",vp->v_usecount);
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vput(vp);
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return (EBUSY);
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}
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error = vflush(mp, vp, flags);
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if (error) {
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vput(vp);
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return (error);
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}
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/*
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* There are two reference counts and one lock to get rid of here.
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*/
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NCPVODEBUG("v_use: %d\n",vp->v_usecount);
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vput(vp);
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NCPVODEBUG("v_use after vput: %d\n",vp->v_usecount);
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vrele(vp);
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NCPVODEBUG("v_use after vrele: %d\n",vp->v_usecount);
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vgone(vp);
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NCPVODEBUG("v_gone finished !!!!\n");
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conn = NWFSTOCONN(nmp);
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ncp_conn_puthandle(nmp->connh,NULL,0);
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if (ncp_conn_lock(conn,p,p->p_ucred,NCPM_WRITE | NCPM_EXECUTE) == 0) {
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if(ncp_disconnect(conn))
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ncp_conn_unlock(conn,p);
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}
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mp->mnt_data = (qaddr_t)0;
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if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
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free(nmp->m.nls.tolower, M_NWFSDATA);
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free(nmp, M_NWFSDATA);
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mp->mnt_flag &= ~MNT_LOCAL;
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return (error);
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}
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/* Return locked vnode to root of a filesystem */
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static int
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nwfs_root(struct mount *mp, struct vnode **vpp) {
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struct vnode *vp;
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struct nwmount *nmp;
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struct nwnode *np;
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struct ncp_conn *conn;
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struct nw_entry_info fattr;
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struct proc *p = curproc;
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struct ucred *cred = p->p_ucred;
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int error, nsf, opt;
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u_char vol;
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nmp = VFSTONWFS(mp);
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conn = NWFSTOCONN(nmp);
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if (nmp->n_root) {
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*vpp = NWTOV(nmp->n_root);
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vget(*vpp, LK_EXCLUSIVE, curproc);
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return 0;
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}
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error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
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&nmp->n_rootent.f_id, p, cred);
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if (error)
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return ENOENT;
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nmp->n_volume = vol;
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error = ncp_get_namespaces(conn, vol, &nsf, p, cred);
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if (error)
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return ENOENT;
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if (nsf & NW_NSB_OS2) {
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NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
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if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
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nmp->name_space = NW_NS_OS2;
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nmp->m.nls.opt &= ~NWHP_DOS;
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}
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}
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opt = nmp->m.nls.opt;
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nsf = opt & (NWHP_UPPER | NWHP_LOWER);
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if (opt & NWHP_DOS) {
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if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
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nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
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} else if (nsf == 0) {
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nmp->m.nls.opt |= NWHP_LOWER;
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}
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} else {
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if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
|
||
|
|
nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (nmp->m.root_path[0]) {
|
||
|
|
nmp->m.root_path[0]--;
|
||
|
|
error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
|
||
|
|
-nmp->m.root_path[0], nmp->m.root_path, &fattr, p, cred);
|
||
|
|
if (error) {
|
||
|
|
NCPFATAL("Invalid root path specified\n");
|
||
|
|
return ENOENT;
|
||
|
|
}
|
||
|
|
nmp->n_rootent.f_parent = fattr.dirEntNum;
|
||
|
|
nmp->m.root_path[0]++;
|
||
|
|
error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
|
||
|
|
-nmp->m.root_path[0], nmp->m.root_path, &fattr, p, cred);
|
||
|
|
if (error) {
|
||
|
|
NCPFATAL("Invalid root path specified\n");
|
||
|
|
return ENOENT;
|
||
|
|
}
|
||
|
|
nmp->n_rootent.f_id = fattr.dirEntNum;
|
||
|
|
} else {
|
||
|
|
error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
|
||
|
|
0, NULL, &fattr, p, cred);
|
||
|
|
if (error) {
|
||
|
|
NCPFATAL("Can't obtain volume info\n");
|
||
|
|
return ENOENT;
|
||
|
|
}
|
||
|
|
fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
|
||
|
|
nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
|
||
|
|
}
|
||
|
|
error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
|
||
|
|
if (error)
|
||
|
|
return (error);
|
||
|
|
vp->v_flag |= VROOT;
|
||
|
|
np = VTONW(vp);
|
||
|
|
if (nmp->m.root_path[0] == 0)
|
||
|
|
np->n_flag |= NVOLUME;
|
||
|
|
nmp->n_root = np;
|
||
|
|
/* error = VOP_GETATTR(vp, &vattr, cred, p);
|
||
|
|
if (error) {
|
||
|
|
vput(vp);
|
||
|
|
NCPFATAL("Can't get root directory entry\n");
|
||
|
|
return error;
|
||
|
|
}*/
|
||
|
|
*vpp = vp;
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Vfs start routine, a no-op.
|
||
|
|
*/
|
||
|
|
/* ARGSUSED */
|
||
|
|
static int
|
||
|
|
nwfs_start(mp, flags, p)
|
||
|
|
struct mount *mp;
|
||
|
|
int flags;
|
||
|
|
struct proc *p;
|
||
|
|
{
|
||
|
|
NCPVODEBUG("flags=%04x\n",flags);
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Do operations associated with quotas, not supported
|
||
|
|
*/
|
||
|
|
/* ARGSUSED */
|
||
|
|
static int
|
||
|
|
nwfs_quotactl(mp, cmd, uid, arg, p)
|
||
|
|
struct mount *mp;
|
||
|
|
int cmd;
|
||
|
|
uid_t uid;
|
||
|
|
caddr_t arg;
|
||
|
|
struct proc *p;
|
||
|
|
{
|
||
|
|
NCPVODEBUG("return EOPNOTSUPP\n");
|
||
|
|
return (EOPNOTSUPP);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*ARGSUSED*/
|
||
|
|
int
|
||
|
|
nwfs_init(struct vfsconf *vfsp)
|
||
|
|
{
|
||
|
|
|
||
|
|
nwfs_hash_init();
|
||
|
|
nwfs_pbuf_freecnt = nswbuf / 2 + 1;
|
||
|
|
NCPVODEBUG("always happy to load!\n");
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*ARGSUSED*/
|
||
|
|
int
|
||
|
|
nwfs_uninit(struct vfsconf *vfsp)
|
||
|
|
{
|
||
|
|
|
||
|
|
nwfs_hash_free();
|
||
|
|
NCPVODEBUG("unloaded\n");
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* nwfs_statfs call
|
||
|
|
*/
|
||
|
|
int
|
||
|
|
nwfs_statfs(mp, sbp, p)
|
||
|
|
struct mount *mp;
|
||
|
|
register struct statfs *sbp;
|
||
|
|
struct proc *p;
|
||
|
|
{
|
||
|
|
struct nwmount *nmp = VFSTONWFS(mp);
|
||
|
|
int error = 0, secsize;
|
||
|
|
struct nwnode *np = nmp->n_root;
|
||
|
|
struct ncp_volume_info vi;
|
||
|
|
|
||
|
|
if (np == NULL) return EINVAL;
|
||
|
|
error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume, &vi,p,p->p_ucred);
|
||
|
|
if (error) return error;
|
||
|
|
secsize = 512; /* XXX how to get real value ??? */
|
||
|
|
sbp->f_spare2=0; /* placeholder */
|
||
|
|
/* fundamental file system block size */
|
||
|
|
sbp->f_bsize = vi.sectors_per_block*secsize;
|
||
|
|
/* optimal transfer block size */
|
||
|
|
sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
|
||
|
|
/* total data blocks in file system */
|
||
|
|
sbp->f_blocks= vi.total_blocks;
|
||
|
|
/* free blocks in fs */
|
||
|
|
sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
|
||
|
|
/* free blocks avail to non-superuser */
|
||
|
|
sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
|
||
|
|
/* total file nodes in file system */
|
||
|
|
sbp->f_files = vi.total_dir_entries;
|
||
|
|
/* free file nodes in fs */
|
||
|
|
sbp->f_ffree = vi.available_dir_entries;
|
||
|
|
sbp->f_flags = 0; /* copy of mount exported flags */
|
||
|
|
if (sbp != &mp->mnt_stat) {
|
||
|
|
sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
|
||
|
|
sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
|
||
|
|
sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
|
||
|
|
bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
|
||
|
|
bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
|
||
|
|
}
|
||
|
|
strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Flush out the buffer cache
|
||
|
|
*/
|
||
|
|
/* ARGSUSED */
|
||
|
|
static int
|
||
|
|
nwfs_sync(mp, waitfor, cred, p)
|
||
|
|
struct mount *mp;
|
||
|
|
int waitfor;
|
||
|
|
struct ucred *cred;
|
||
|
|
struct proc *p;
|
||
|
|
{
|
||
|
|
register struct vnode *vp;
|
||
|
|
int error, allerror = 0;
|
||
|
|
/*
|
||
|
|
* Force stale buffer cache information to be flushed.
|
||
|
|
*/
|
||
|
|
loop:
|
||
|
|
for (vp = mp->mnt_vnodelist.lh_first;
|
||
|
|
vp != NULL;
|
||
|
|
vp = vp->v_mntvnodes.le_next) {
|
||
|
|
/*
|
||
|
|
* If the vnode that we are about to sync is no longer
|
||
|
|
* associated with this mount point, start over.
|
||
|
|
*/
|
||
|
|
if (vp->v_mount != mp)
|
||
|
|
goto loop;
|
||
|
|
if (VOP_ISLOCKED(vp) || TAILQ_EMPTY(&vp->v_dirtyblkhd) ||
|
||
|
|
waitfor == MNT_LAZY)
|
||
|
|
continue;
|
||
|
|
if (vget(vp, LK_EXCLUSIVE, p))
|
||
|
|
goto loop;
|
||
|
|
error = VOP_FSYNC(vp, cred, waitfor, p);
|
||
|
|
if (error)
|
||
|
|
allerror = error;
|
||
|
|
vput(vp);
|
||
|
|
}
|
||
|
|
return (allerror);
|
||
|
|
}
|