nwfs_vfsops.c revision 51852
151852Sbp/* 251852Sbp * Copyright (c) 1999, Boris Popov 351852Sbp * All rights reserved. 451852Sbp * 551852Sbp * Redistribution and use in source and binary forms, with or without 651852Sbp * modification, are permitted provided that the following conditions 751852Sbp * are met: 851852Sbp * 1. Redistributions of source code must retain the above copyright 951852Sbp * notice, this list of conditions and the following disclaimer. 1051852Sbp * 2. Redistributions in binary form must reproduce the above copyright 1151852Sbp * notice, this list of conditions and the following disclaimer in the 1251852Sbp * documentation and/or other materials provided with the distribution. 1351852Sbp * 3. All advertising materials mentioning features or use of this software 1451852Sbp * must display the following acknowledgement: 1551852Sbp * This product includes software developed by Boris Popov. 1651852Sbp * 4. Neither the name of the author nor the names of any co-contributors 1751852Sbp * may be used to endorse or promote products derived from this software 1851852Sbp * without specific prior written permission. 1951852Sbp * 2051852Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 2151852Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2251852Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2351852Sbp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2451852Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2551852Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2651852Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2751852Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2851852Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2951852Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3051852Sbp * SUCH DAMAGE. 3151852Sbp * 3251852Sbp * $FreeBSD: head/sys/fs/nwfs/nwfs_vfsops.c 51852 1999-10-02 04:06:24Z bp $ 3351852Sbp */ 3451852Sbp#include "opt_ncp.h" 3551852Sbp#ifndef NCP 3651852Sbp#error "NWFS requires NCP protocol" 3751852Sbp#endif 3851852Sbp 3951852Sbp#include <sys/param.h> 4051852Sbp#include <sys/systm.h> 4151852Sbp#include <sys/namei.h> 4251852Sbp#include <sys/proc.h> 4351852Sbp#include <sys/kernel.h> 4451852Sbp#include <sys/sysctl.h> 4551852Sbp#include <sys/vnode.h> 4651852Sbp#include <sys/mount.h> 4751852Sbp#include <sys/stat.h> 4851852Sbp#include <sys/malloc.h> 4951852Sbp#include <sys/buf.h> 5051852Sbp 5151852Sbp#include <netncp/ncp.h> 5251852Sbp#include <netncp/ncp_conn.h> 5351852Sbp#include <netncp/ncp_sock.h> 5451852Sbp#include <netncp/ncp_subr.h> 5551852Sbp#include <netncp/ncp_ncp.h> 5651852Sbp#include <netncp/ncp_rq.h> 5751852Sbp#include <netncp/ncp_nls.h> 5851852Sbp 5951852Sbp#include <nwfs/nwfs.h> 6051852Sbp#include <nwfs/nwfs_node.h> 6151852Sbp#include <nwfs/nwfs_subr.h> 6251852Sbp 6351852Sbpint nwfs_debuglevel = 0; 6451852Sbp 6551852Sbpstatic int nwfs_version = NWFS_VERSION; 6651852Sbp 6751852SbpSYSCTL_DECL(_vfs_nwfs); 6851852SbpSYSCTL_NODE(_vfs, OID_AUTO, nwfs, CTLFLAG_RW, 0, "Netware file system"); 6951852SbpSYSCTL_INT(_vfs_nwfs, OID_AUTO, version, CTLFLAG_RD, &nwfs_version, 0, ""); 7051852SbpSYSCTL_INT(_vfs_nwfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nwfs_debuglevel, 0, ""); 7151852Sbp 7251852Sbpstatic int nwfs_mount __P((struct mount *, char *, caddr_t, 7351852Sbp struct nameidata *, struct proc *)); 7451852Sbpstatic int nwfs_quotactl __P((struct mount *, int, uid_t, caddr_t, 7551852Sbp struct proc *)); 7651852Sbpstatic int nwfs_root __P((struct mount *, struct vnode **)); 7751852Sbpstatic int nwfs_start __P((struct mount *, int, struct proc *)); 7851852Sbpstatic int nwfs_statfs __P((struct mount *, struct statfs *, 7951852Sbp struct proc *)); 8051852Sbpstatic int nwfs_sync __P((struct mount *, int, struct ucred *, 8151852Sbp struct proc *)); 8251852Sbpstatic int nwfs_unmount __P((struct mount *, int, struct proc *)); 8351852Sbpstatic int nwfs_init __P((struct vfsconf *vfsp)); 8451852Sbpstatic int nwfs_uninit __P((struct vfsconf *vfsp)); 8551852Sbp 8651852Sbpstatic struct vfsops nwfs_vfsops = { 8751852Sbp nwfs_mount, 8851852Sbp nwfs_start, 8951852Sbp nwfs_unmount, 9051852Sbp nwfs_root, 9151852Sbp nwfs_quotactl, 9251852Sbp nwfs_statfs, 9351852Sbp nwfs_sync, 9451852Sbp vfs_stdvget, 9551852Sbp vfs_stdfhtovp, /* shouldn't happen */ 9651852Sbp vfs_stdcheckexp, 9751852Sbp vfs_stdvptofh, /* shouldn't happen */ 9851852Sbp nwfs_init, 9951852Sbp nwfs_uninit 10051852Sbp}; 10151852Sbp 10251852Sbp 10351852SbpVFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK); 10451852Sbp 10551852Sbpint nwfs_pbuf_freecnt = -1; /* start out unlimited */ 10651852Sbpstatic int nwfsid = 1; 10751852Sbp 10851852Sbpstatic int 10951852Sbpnwfs_initnls(struct nwmount *nmp) { 11051852Sbp char *pc, *pe; 11151852Sbp int error = 0; 11251852Sbp#define COPY_TABLE(t,d) { \ 11351852Sbp if (t) { \ 11451852Sbp error = copyin((t), pc, 256); \ 11551852Sbp if (error) break; \ 11651852Sbp } else \ 11751852Sbp bcopy(d, pc, 256); \ 11851852Sbp (t) = pc; pc += 256; \ 11951852Sbp } 12051852Sbp 12151852Sbp nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS; 12251852Sbp if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) { 12351852Sbp nmp->m.nls.tolower = ncp_defnls.tolower; 12451852Sbp nmp->m.nls.toupper = ncp_defnls.toupper; 12551852Sbp nmp->m.nls.n2u = ncp_defnls.n2u; 12651852Sbp nmp->m.nls.u2n = ncp_defnls.u2n; 12751852Sbp return 0; 12851852Sbp } 12951852Sbp MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK); 13051852Sbp if (pe == NULL) return ENOMEM; 13151852Sbp pc = pe; 13251852Sbp do { 13351852Sbp COPY_TABLE(nmp->m.nls.tolower, ncp_defnls.tolower); 13451852Sbp COPY_TABLE(nmp->m.nls.toupper, ncp_defnls.toupper); 13551852Sbp COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u); 13651852Sbp COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n); 13751852Sbp } while(0); 13851852Sbp if (error) { 13951852Sbp free(pe, M_NWFSDATA); 14051852Sbp return error; 14151852Sbp } 14251852Sbp return 0; 14351852Sbp} 14451852Sbp/* 14551852Sbp * mp - path - addr in user space of mount point (ie /usr or whatever) 14651852Sbp * data - addr in user space of mount params 14751852Sbp */ 14851852Sbpstatic int nwfs_mount(struct mount *mp, char *path, caddr_t data, 14951852Sbp struct nameidata *ndp, struct proc *p) 15051852Sbp{ 15151852Sbp struct nwfs_args args; /* will hold data from mount request */ 15251852Sbp size_t size; 15351852Sbp int error; 15451852Sbp struct nwmount *nmp = NULL; 15551852Sbp struct ncp_conn *conn = NULL; 15651852Sbp struct ncp_handle *handle = NULL; 15751852Sbp struct vnode *vp; 15851852Sbp char *pc,*pe; 15951852Sbp 16051852Sbp if (data == NULL) { 16151852Sbp nwfs_printf("missing data argument\n"); 16251852Sbp return 1; 16351852Sbp } 16451852Sbp if (mp->mnt_flag & MNT_UPDATE) { 16551852Sbp nwfs_printf("MNT_UPDATE not implemented"); 16651852Sbp return (EOPNOTSUPP); 16751852Sbp } 16851852Sbp error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args)); 16951852Sbp if (error) 17051852Sbp return (error); 17151852Sbp if (args.version != NWFS_VERSION) { 17251852Sbp nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version); 17351852Sbp return (1); 17451852Sbp } 17551852Sbp error = ncp_conn_getbyref(args.connRef,p,p->p_ucred,NCPM_EXECUTE,&conn); 17651852Sbp if (error) { 17751852Sbp nwfs_printf("invalid connection refernce %d\n",args.connRef); 17851852Sbp return (error); 17951852Sbp } 18051852Sbp error = ncp_conn_gethandle(conn, NULL, &handle); 18151852Sbp if (error) { 18251852Sbp nwfs_printf("can't get connection handle\n"); 18351852Sbp return (error); 18451852Sbp } 18551852Sbp ncp_conn_unlock(conn,p); /* we keep the ref */ 18651852Sbp mp->mnt_stat.f_iosize = conn->buffer_size; 18751852Sbp /* We must malloc our own mount info */ 18851852Sbp MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA,M_USE_RESERVE); 18951852Sbp if (nmp == NULL) { 19051852Sbp nwfs_printf("could not alloc nwmount\n"); 19151852Sbp error = ENOMEM; 19251852Sbp goto bad; 19351852Sbp } 19451852Sbp bzero(nmp,sizeof(*nmp)); 19551852Sbp mp->mnt_data = (qaddr_t)nmp; 19651852Sbp nmp->connh = handle; 19751852Sbp nmp->n_root = NULL; 19851852Sbp nmp->n_id = nwfsid++; 19951852Sbp nmp->m = args; 20051852Sbp nmp->m.file_mode = (nmp->m.file_mode & 20151852Sbp (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG; 20251852Sbp nmp->m.dir_mode = (nmp->m.dir_mode & 20351852Sbp (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR; 20451852Sbp if ((error = nwfs_initnls(nmp)) != 0) goto bad; 20551852Sbp (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size); 20651852Sbp bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size); 20751852Sbp pc = mp->mnt_stat.f_mntfromname; 20851852Sbp pe = pc+sizeof(mp->mnt_stat.f_mntfromname); 20951852Sbp bzero(pc, MNAMELEN); 21051852Sbp *(pc++) = '/'; 21151852Sbp pc = index(strncpy(pc, conn->li.server, pe-pc-2),0); 21251852Sbp if (pc < pe-1) { 21351852Sbp *(pc++) = ':'; 21451852Sbp pc=index(strncpy(pc, conn->li.user, pe-pc-2),0); 21551852Sbp if (pc < pe-1) { 21651852Sbp *(pc++) = '/'; 21751852Sbp strncpy(pc, nmp->m.mounted_vol, pe-pc-2); 21851852Sbp } 21951852Sbp } 22051852Sbp /* protect against invalid mount points */ 22151852Sbp nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0'; 22251852Sbp vfs_getnewfsid(mp); 22351852Sbp error = nwfs_root(mp, &vp); 22451852Sbp if (error) 22551852Sbp goto bad; 22651852Sbp /* 22751852Sbp * Lose the lock but keep the ref. 22851852Sbp */ 22951852Sbp VOP_UNLOCK(vp, 0, curproc); 23051852Sbp NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_usecount); 23151852Sbp return error; 23251852Sbpbad: 23351852Sbp if (nmp) 23451852Sbp free(nmp, M_NWFSDATA); 23551852Sbp if (handle) 23651852Sbp ncp_conn_puthandle(handle, NULL, 0); 23751852Sbp return error; 23851852Sbp} 23951852Sbp 24051852Sbp/* Unmount the filesystem described by mp. */ 24151852Sbpstatic int 24251852Sbpnwfs_unmount(struct mount *mp, int mntflags, struct proc *p) 24351852Sbp{ 24451852Sbp struct nwmount *nmp = VFSTONWFS(mp); 24551852Sbp struct ncp_conn *conn; 24651852Sbp struct vnode *vp; 24751852Sbp int error, flags; 24851852Sbp 24951852Sbp NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags); 25051852Sbp flags = 0; 25151852Sbp if (mntflags & MNT_FORCE) 25251852Sbp flags |= FORCECLOSE; 25351852Sbp error = VFS_ROOT(mp,&vp); 25451852Sbp if (error) return (error); 25551852Sbp if (vp->v_usecount > 2) { 25651852Sbp printf("nwfs_unmount: usecnt=%d\n",vp->v_usecount); 25751852Sbp vput(vp); 25851852Sbp return (EBUSY); 25951852Sbp } 26051852Sbp error = vflush(mp, vp, flags); 26151852Sbp if (error) { 26251852Sbp vput(vp); 26351852Sbp return (error); 26451852Sbp } 26551852Sbp /* 26651852Sbp * There are two reference counts and one lock to get rid of here. 26751852Sbp */ 26851852Sbp NCPVODEBUG("v_use: %d\n",vp->v_usecount); 26951852Sbp vput(vp); 27051852Sbp NCPVODEBUG("v_use after vput: %d\n",vp->v_usecount); 27151852Sbp vrele(vp); 27251852Sbp NCPVODEBUG("v_use after vrele: %d\n",vp->v_usecount); 27351852Sbp vgone(vp); 27451852Sbp NCPVODEBUG("v_gone finished !!!!\n"); 27551852Sbp conn = NWFSTOCONN(nmp); 27651852Sbp ncp_conn_puthandle(nmp->connh,NULL,0); 27751852Sbp if (ncp_conn_lock(conn,p,p->p_ucred,NCPM_WRITE | NCPM_EXECUTE) == 0) { 27851852Sbp if(ncp_disconnect(conn)) 27951852Sbp ncp_conn_unlock(conn,p); 28051852Sbp } 28151852Sbp mp->mnt_data = (qaddr_t)0; 28251852Sbp if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS) 28351852Sbp free(nmp->m.nls.tolower, M_NWFSDATA); 28451852Sbp free(nmp, M_NWFSDATA); 28551852Sbp mp->mnt_flag &= ~MNT_LOCAL; 28651852Sbp return (error); 28751852Sbp} 28851852Sbp 28951852Sbp/* Return locked vnode to root of a filesystem */ 29051852Sbpstatic int 29151852Sbpnwfs_root(struct mount *mp, struct vnode **vpp) { 29251852Sbp struct vnode *vp; 29351852Sbp struct nwmount *nmp; 29451852Sbp struct nwnode *np; 29551852Sbp struct ncp_conn *conn; 29651852Sbp struct nw_entry_info fattr; 29751852Sbp struct proc *p = curproc; 29851852Sbp struct ucred *cred = p->p_ucred; 29951852Sbp int error, nsf, opt; 30051852Sbp u_char vol; 30151852Sbp 30251852Sbp nmp = VFSTONWFS(mp); 30351852Sbp conn = NWFSTOCONN(nmp); 30451852Sbp if (nmp->n_root) { 30551852Sbp *vpp = NWTOV(nmp->n_root); 30651852Sbp vget(*vpp, LK_EXCLUSIVE, curproc); 30751852Sbp return 0; 30851852Sbp } 30951852Sbp error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol, 31051852Sbp &nmp->n_rootent.f_id, p, cred); 31151852Sbp if (error) 31251852Sbp return ENOENT; 31351852Sbp nmp->n_volume = vol; 31451852Sbp error = ncp_get_namespaces(conn, vol, &nsf, p, cred); 31551852Sbp if (error) 31651852Sbp return ENOENT; 31751852Sbp if (nsf & NW_NSB_OS2) { 31851852Sbp NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol); 31951852Sbp if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) { 32051852Sbp nmp->name_space = NW_NS_OS2; 32151852Sbp nmp->m.nls.opt &= ~NWHP_DOS; 32251852Sbp } 32351852Sbp } 32451852Sbp opt = nmp->m.nls.opt; 32551852Sbp nsf = opt & (NWHP_UPPER | NWHP_LOWER); 32651852Sbp if (opt & NWHP_DOS) { 32751852Sbp if (nsf == (NWHP_UPPER | NWHP_LOWER)) { 32851852Sbp nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER); 32951852Sbp } else if (nsf == 0) { 33051852Sbp nmp->m.nls.opt |= NWHP_LOWER; 33151852Sbp } 33251852Sbp } else { 33351852Sbp if (nsf == (NWHP_UPPER | NWHP_LOWER)) { 33451852Sbp nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER); 33551852Sbp } 33651852Sbp } 33751852Sbp if (nmp->m.root_path[0]) { 33851852Sbp nmp->m.root_path[0]--; 33951852Sbp error = ncp_obtain_info(nmp, nmp->n_rootent.f_id, 34051852Sbp -nmp->m.root_path[0], nmp->m.root_path, &fattr, p, cred); 34151852Sbp if (error) { 34251852Sbp NCPFATAL("Invalid root path specified\n"); 34351852Sbp return ENOENT; 34451852Sbp } 34551852Sbp nmp->n_rootent.f_parent = fattr.dirEntNum; 34651852Sbp nmp->m.root_path[0]++; 34751852Sbp error = ncp_obtain_info(nmp, nmp->n_rootent.f_id, 34851852Sbp -nmp->m.root_path[0], nmp->m.root_path, &fattr, p, cred); 34951852Sbp if (error) { 35051852Sbp NCPFATAL("Invalid root path specified\n"); 35151852Sbp return ENOENT; 35251852Sbp } 35351852Sbp nmp->n_rootent.f_id = fattr.dirEntNum; 35451852Sbp } else { 35551852Sbp error = ncp_obtain_info(nmp, nmp->n_rootent.f_id, 35651852Sbp 0, NULL, &fattr, p, cred); 35751852Sbp if (error) { 35851852Sbp NCPFATAL("Can't obtain volume info\n"); 35951852Sbp return ENOENT; 36051852Sbp } 36151852Sbp fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL)); 36251852Sbp nmp->n_rootent.f_parent = nmp->n_rootent.f_id; 36351852Sbp } 36451852Sbp error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp); 36551852Sbp if (error) 36651852Sbp return (error); 36751852Sbp vp->v_flag |= VROOT; 36851852Sbp np = VTONW(vp); 36951852Sbp if (nmp->m.root_path[0] == 0) 37051852Sbp np->n_flag |= NVOLUME; 37151852Sbp nmp->n_root = np; 37251852Sbp/* error = VOP_GETATTR(vp, &vattr, cred, p); 37351852Sbp if (error) { 37451852Sbp vput(vp); 37551852Sbp NCPFATAL("Can't get root directory entry\n"); 37651852Sbp return error; 37751852Sbp }*/ 37851852Sbp *vpp = vp; 37951852Sbp return (0); 38051852Sbp} 38151852Sbp 38251852Sbp/* 38351852Sbp * Vfs start routine, a no-op. 38451852Sbp */ 38551852Sbp/* ARGSUSED */ 38651852Sbpstatic int 38751852Sbpnwfs_start(mp, flags, p) 38851852Sbp struct mount *mp; 38951852Sbp int flags; 39051852Sbp struct proc *p; 39151852Sbp{ 39251852Sbp NCPVODEBUG("flags=%04x\n",flags); 39351852Sbp return (0); 39451852Sbp} 39551852Sbp 39651852Sbp/* 39751852Sbp * Do operations associated with quotas, not supported 39851852Sbp */ 39951852Sbp/* ARGSUSED */ 40051852Sbpstatic int 40151852Sbpnwfs_quotactl(mp, cmd, uid, arg, p) 40251852Sbp struct mount *mp; 40351852Sbp int cmd; 40451852Sbp uid_t uid; 40551852Sbp caddr_t arg; 40651852Sbp struct proc *p; 40751852Sbp{ 40851852Sbp NCPVODEBUG("return EOPNOTSUPP\n"); 40951852Sbp return (EOPNOTSUPP); 41051852Sbp} 41151852Sbp 41251852Sbp/*ARGSUSED*/ 41351852Sbpint 41451852Sbpnwfs_init(struct vfsconf *vfsp) 41551852Sbp{ 41651852Sbp 41751852Sbp nwfs_hash_init(); 41851852Sbp nwfs_pbuf_freecnt = nswbuf / 2 + 1; 41951852Sbp NCPVODEBUG("always happy to load!\n"); 42051852Sbp return (0); 42151852Sbp} 42251852Sbp 42351852Sbp/*ARGSUSED*/ 42451852Sbpint 42551852Sbpnwfs_uninit(struct vfsconf *vfsp) 42651852Sbp{ 42751852Sbp 42851852Sbp nwfs_hash_free(); 42951852Sbp NCPVODEBUG("unloaded\n"); 43051852Sbp return (0); 43151852Sbp} 43251852Sbp 43351852Sbp/* 43451852Sbp * nwfs_statfs call 43551852Sbp */ 43651852Sbpint 43751852Sbpnwfs_statfs(mp, sbp, p) 43851852Sbp struct mount *mp; 43951852Sbp register struct statfs *sbp; 44051852Sbp struct proc *p; 44151852Sbp{ 44251852Sbp struct nwmount *nmp = VFSTONWFS(mp); 44351852Sbp int error = 0, secsize; 44451852Sbp struct nwnode *np = nmp->n_root; 44551852Sbp struct ncp_volume_info vi; 44651852Sbp 44751852Sbp if (np == NULL) return EINVAL; 44851852Sbp error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume, &vi,p,p->p_ucred); 44951852Sbp if (error) return error; 45051852Sbp secsize = 512; /* XXX how to get real value ??? */ 45151852Sbp sbp->f_spare2=0; /* placeholder */ 45251852Sbp /* fundamental file system block size */ 45351852Sbp sbp->f_bsize = vi.sectors_per_block*secsize; 45451852Sbp /* optimal transfer block size */ 45551852Sbp sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size; 45651852Sbp /* total data blocks in file system */ 45751852Sbp sbp->f_blocks= vi.total_blocks; 45851852Sbp /* free blocks in fs */ 45951852Sbp sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks; 46051852Sbp /* free blocks avail to non-superuser */ 46151852Sbp sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks; 46251852Sbp /* total file nodes in file system */ 46351852Sbp sbp->f_files = vi.total_dir_entries; 46451852Sbp /* free file nodes in fs */ 46551852Sbp sbp->f_ffree = vi.available_dir_entries; 46651852Sbp sbp->f_flags = 0; /* copy of mount exported flags */ 46751852Sbp if (sbp != &mp->mnt_stat) { 46851852Sbp sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */ 46951852Sbp sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */ 47051852Sbp sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */ 47151852Sbp bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN); 47251852Sbp bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN); 47351852Sbp } 47451852Sbp strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN); 47551852Sbp return 0; 47651852Sbp} 47751852Sbp 47851852Sbp/* 47951852Sbp * Flush out the buffer cache 48051852Sbp */ 48151852Sbp/* ARGSUSED */ 48251852Sbpstatic int 48351852Sbpnwfs_sync(mp, waitfor, cred, p) 48451852Sbp struct mount *mp; 48551852Sbp int waitfor; 48651852Sbp struct ucred *cred; 48751852Sbp struct proc *p; 48851852Sbp{ 48951852Sbp register struct vnode *vp; 49051852Sbp int error, allerror = 0; 49151852Sbp /* 49251852Sbp * Force stale buffer cache information to be flushed. 49351852Sbp */ 49451852Sbploop: 49551852Sbp for (vp = mp->mnt_vnodelist.lh_first; 49651852Sbp vp != NULL; 49751852Sbp vp = vp->v_mntvnodes.le_next) { 49851852Sbp /* 49951852Sbp * If the vnode that we are about to sync is no longer 50051852Sbp * associated with this mount point, start over. 50151852Sbp */ 50251852Sbp if (vp->v_mount != mp) 50351852Sbp goto loop; 50451852Sbp if (VOP_ISLOCKED(vp) || TAILQ_EMPTY(&vp->v_dirtyblkhd) || 50551852Sbp waitfor == MNT_LAZY) 50651852Sbp continue; 50751852Sbp if (vget(vp, LK_EXCLUSIVE, p)) 50851852Sbp goto loop; 50951852Sbp error = VOP_FSYNC(vp, cred, waitfor, p); 51051852Sbp if (error) 51151852Sbp allerror = error; 51251852Sbp vput(vp); 51351852Sbp } 51451852Sbp return (allerror); 51551852Sbp} 516