diff options
Diffstat (limited to 'sys/nwfs/nwfs_vnops.c')
| -rw-r--r-- | sys/nwfs/nwfs_vnops.c | 1032 |
1 files changed, 0 insertions, 1032 deletions
diff --git a/sys/nwfs/nwfs_vnops.c b/sys/nwfs/nwfs_vnops.c deleted file mode 100644 index 1e5361f..0000000 --- a/sys/nwfs/nwfs_vnops.c +++ /dev/null @@ -1,1032 +0,0 @@ -/* - * Copyright (c) 1999, 2000, 2001 Boris Popov - * 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 Boris Popov. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. - * - * $FreeBSD$ - */ -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/namei.h> -#include <sys/kernel.h> -#include <sys/bio.h> -#include <sys/buf.h> -#include <sys/fcntl.h> -#include <sys/mount.h> -#include <sys/unistd.h> -#include <sys/vnode.h> - -#include <vm/vm.h> -#include <vm/vm_extern.h> - -#include <machine/mutex.h> - -#include <netncp/ncp.h> -#include <netncp/ncp_conn.h> -#include <netncp/ncp_subr.h> -#include <netncp/nwerror.h> -#include <netncp/ncp_nls.h> - -#include <nwfs/nwfs.h> -#include <nwfs/nwfs_node.h> -#include <nwfs/nwfs_subr.h> - -/* - * Prototypes for NWFS vnode operations - */ -static int nwfs_create(struct vop_create_args *); -static int nwfs_mknod(struct vop_mknod_args *); -static int nwfs_open(struct vop_open_args *); -static int nwfs_close(struct vop_close_args *); -static int nwfs_access(struct vop_access_args *); -static int nwfs_getattr(struct vop_getattr_args *); -static int nwfs_setattr(struct vop_setattr_args *); -static int nwfs_read(struct vop_read_args *); -static int nwfs_write(struct vop_write_args *); -static int nwfs_fsync(struct vop_fsync_args *); -static int nwfs_remove(struct vop_remove_args *); -static int nwfs_link(struct vop_link_args *); -static int nwfs_lookup(struct vop_lookup_args *); -static int nwfs_rename(struct vop_rename_args *); -static int nwfs_mkdir(struct vop_mkdir_args *); -static int nwfs_rmdir(struct vop_rmdir_args *); -static int nwfs_symlink(struct vop_symlink_args *); -static int nwfs_readdir(struct vop_readdir_args *); -static int nwfs_strategy(struct vop_strategy_args *); -static int nwfs_print(struct vop_print_args *); -static int nwfs_pathconf(struct vop_pathconf_args *ap); - -/* Global vfs data structures for nwfs */ -vop_t **nwfs_vnodeop_p; -static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = { - { &vop_default_desc, (vop_t *) vop_defaultop }, - { &vop_access_desc, (vop_t *) nwfs_access }, - { &vop_open_desc, (vop_t *) nwfs_open }, - { &vop_close_desc, (vop_t *) nwfs_close }, - { &vop_create_desc, (vop_t *) nwfs_create }, - { &vop_fsync_desc, (vop_t *) nwfs_fsync }, - { &vop_getattr_desc, (vop_t *) nwfs_getattr }, - { &vop_getpages_desc, (vop_t *) nwfs_getpages }, - { &vop_putpages_desc, (vop_t *) nwfs_putpages }, - { &vop_ioctl_desc, (vop_t *) nwfs_ioctl }, - { &vop_inactive_desc, (vop_t *) nwfs_inactive }, - { &vop_islocked_desc, (vop_t *) vop_stdislocked }, - { &vop_link_desc, (vop_t *) nwfs_link }, - { &vop_lock_desc, (vop_t *) vop_stdlock }, - { &vop_lookup_desc, (vop_t *) nwfs_lookup }, - { &vop_mkdir_desc, (vop_t *) nwfs_mkdir }, - { &vop_mknod_desc, (vop_t *) nwfs_mknod }, - { &vop_pathconf_desc, (vop_t *) nwfs_pathconf }, - { &vop_print_desc, (vop_t *) nwfs_print }, - { &vop_read_desc, (vop_t *) nwfs_read }, - { &vop_readdir_desc, (vop_t *) nwfs_readdir }, - { &vop_reclaim_desc, (vop_t *) nwfs_reclaim }, - { &vop_remove_desc, (vop_t *) nwfs_remove }, - { &vop_rename_desc, (vop_t *) nwfs_rename }, - { &vop_rmdir_desc, (vop_t *) nwfs_rmdir }, - { &vop_setattr_desc, (vop_t *) nwfs_setattr }, - { &vop_strategy_desc, (vop_t *) nwfs_strategy }, - { &vop_symlink_desc, (vop_t *) nwfs_symlink }, - { &vop_unlock_desc, (vop_t *) vop_stdunlock }, - { &vop_write_desc, (vop_t *) nwfs_write }, - { NULL, NULL } -}; -static struct vnodeopv_desc nwfs_vnodeop_opv_desc = - { &nwfs_vnodeop_p, nwfs_vnodeop_entries }; - -VNODEOP_SET(nwfs_vnodeop_opv_desc); - -/* - * nwfs_access vnode op - * for now just return ok - */ -static int -nwfs_access(ap) - struct vop_access_args /* { - struct vnode *a_vp; - int a_mode; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct ucred *cred = ap->a_cred; - u_int mode = ap->a_mode; - struct nwmount *nmp = VTONWFS(vp); - int error = 0; - - NCPVNDEBUG("\n"); - if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) { - switch (vp->v_type) { - case VREG: case VDIR: case VLNK: - return (EROFS); - default: - break; - } - } - if (cred->cr_uid == 0) - return 0; - if (cred->cr_uid != nmp->m.uid) { - mode >>= 3; - if (!groupmember(nmp->m.gid, cred)) - mode >>= 3; - } - error = (((vp->v_type == VREG) ? nmp->m.file_mode : nmp->m.dir_mode) & mode) == mode ? 0 : EACCES; - return error; -} -/* - * nwfs_open vnode op - */ -/* ARGSUSED */ -static int -nwfs_open(ap) - struct vop_open_args /* { - struct vnode *a_vp; - int a_mode; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - int mode = ap->a_mode; - struct nwnode *np = VTONW(vp); - struct ncp_open_info no; - struct nwmount *nmp = VTONWFS(vp); - struct vattr vattr; - int error, nwm; - - NCPVNDEBUG("%s,%d\n",np->n_name, np->opened); - if (vp->v_type != VREG && vp->v_type != VDIR) { - NCPFATAL("open vtype = %d\n", vp->v_type); - return (EACCES); - } - if (vp->v_type == VDIR) return 0; /* nothing to do now */ - if (np->n_flag & NMODIFIED) { - if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1)) == EINTR) - return (error); - np->n_atime = 0; - error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p); - if (error) return (error); - np->n_mtime = vattr.va_mtime.tv_sec; - } else { - error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p); - if (error) return (error); - if (np->n_mtime != vattr.va_mtime.tv_sec) { - if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1)) == EINTR) - return (error); - np->n_mtime = vattr.va_mtime.tv_sec; - } - } - if (np->opened) { - np->opened++; - return 0; - } - nwm = AR_READ; - if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) - nwm |= AR_WRITE; - error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, - 0, nwm, &no, ap->a_p, ap->a_cred); - if (error) { - if (mode & FWRITE) - return EACCES; - nwm = AR_READ; - error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0, - nwm, &no, ap->a_p,ap->a_cred); - } - if (!error) { - np->opened++; - np->n_fh = no.fh; - np->n_origfh = no.origfh; - } - np->n_atime = 0; - return (error); -} - -static int -nwfs_close(ap) - struct vop_close_args /* { - struct vnodeop_desc *a_desc; - struct vnode *a_vp; - int a_fflag; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct nwnode *np = VTONW(vp); - int error; - - NCPVNDEBUG("name=%s,pid=%d,c=%d\n",np->n_name,ap->a_p->p_pid,np->opened); - - if (vp->v_type == VDIR) return 0; /* nothing to do now */ - error = 0; - mtx_lock(&vp->v_interlock); - if (np->opened == 0) { - mtx_unlock(&vp->v_interlock); - return 0; - } - mtx_unlock(&vp->v_interlock); - error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1); - mtx_lock(&vp->v_interlock); - if (np->opened == 0) { - mtx_unlock(&vp->v_interlock); - return 0; - } - if (--np->opened == 0) { - mtx_unlock(&vp->v_interlock); - error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh, - ap->a_p, ap->a_cred); - } else - mtx_unlock(&vp->v_interlock); - np->n_atime = 0; - return (error); -} - -/* - * nwfs_getattr call from vfs. - */ -static int -nwfs_getattr(ap) - struct vop_getattr_args /* { - struct vnode *a_vp; - struct vattr *a_vap; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct nwnode *np = VTONW(vp); - struct vattr *va=ap->a_vap; - struct nwmount *nmp = VTONWFS(vp); - struct nw_entry_info fattr; - int error; - u_int32_t oldsize; - - NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0); - error = nwfs_attr_cachelookup(vp,va); - if (!error) return 0; - NCPVNDEBUG("not in cache\n"); - oldsize = np->n_size; - if (np->n_flag & NVOLUME) { - error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr, - ap->a_p,ap->a_cred); - } else { - error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen, - np->n_name, &fattr, ap->a_p, ap->a_cred); - } - if (error) { - NCPVNDEBUG("error %d\n", error); - return error; - } - nwfs_attr_cacheenter(vp, &fattr); - *va = np->n_vattr; - if (np->opened) - np->n_size = oldsize; - return (0); -} -/* - * nwfs_setattr call from vfs. - */ -static int -nwfs_setattr(ap) - struct vop_setattr_args /* { - struct vnode *a_vp; - struct vattr *a_vap; - struct ucred *a_cred; - struct proc *a_p; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct nwnode *np = VTONW(vp); - struct vattr *vap = ap->a_vap; - u_quad_t tsize=0; - int error = 0; - - NCPVNDEBUG("\n"); - if (vap->va_flags != VNOVAL) - return (EOPNOTSUPP); - /* - * Disallow write attempts if the filesystem is mounted read-only. - */ - if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL || - vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || - vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY)) - return (EROFS); - if (vap->va_size != VNOVAL) { - switch (vp->v_type) { - case VDIR: - return (EISDIR); - case VREG: - /* - * Disallow write attempts if the filesystem is - * mounted read-only. - */ - if (vp->v_mount->mnt_flag & MNT_RDONLY) - return (EROFS); - vnode_pager_setsize(vp, (u_long)vap->va_size); - tsize = np->n_size; - np->n_size = vap->va_size; - break; - default: - return EINVAL; - }; - } - error = ncp_setattr(vp, vap, ap->a_cred, ap->a_p); - if (error && vap->va_size != VNOVAL) { - np->n_size = tsize; - vnode_pager_setsize(vp, (u_long)tsize); - } - np->n_atime = 0; /* invalidate cache */ - VOP_GETATTR(vp, vap, ap->a_cred, ap->a_p); - np->n_mtime = vap->va_mtime.tv_sec; - return (0); -} -/* - * nwfs_read call. - */ -static int -nwfs_read(ap) - struct vop_read_args /* { - struct vnode *a_vp; - struct uio *a_uio; - int a_ioflag; - struct ucred *a_cred; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct uio *uio=ap->a_uio; - int error; - NCPVNDEBUG("nwfs_read:\n"); - - if (vp->v_type != VREG && vp->v_type != VDIR) - return (EPERM); - error = nwfs_readvnode(vp, uio, ap->a_cred); - return error; -} - -static int -nwfs_write(ap) - struct vop_write_args /* { - struct vnode *a_vp; - struct uio *a_uio; - int a_ioflag; - struct ucred *a_cred; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct uio *uio = ap->a_uio; - int error; - - NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid); - - if (vp->v_type != VREG) - return (EPERM); - error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag); - return(error); -} -/* - * nwfs_create call - * Create a regular file. On entry the directory to contain the file being - * created is locked. We must release before we return. We must also free - * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or - * only if the SAVESTART bit in cn_flags is clear on success. - */ -static int -nwfs_create(ap) - struct vop_create_args /* { - struct vnode *a_dvp; - struct vnode **a_vpp; - struct componentname *a_cnp; - struct vattr *a_vap; - } */ *ap; -{ - struct vnode *dvp = ap->a_dvp; - struct vattr *vap = ap->a_vap; - struct vnode **vpp=ap->a_vpp; - struct componentname *cnp = ap->a_cnp; - struct vnode *vp = (struct vnode *)0; - int error = 0, fmode; - struct vattr vattr; - struct nwnode *np; - struct ncp_open_info no; - struct nwmount *nmp=VTONWFS(dvp); - ncpfid fid; - - - NCPVNDEBUG("\n"); - *vpp = NULL; - if (vap->va_type == VSOCK) - return (EOPNOTSUPP); - if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) { - return (error); - } - fmode = AR_READ | AR_WRITE; -/* if (vap->va_vaflags & VA_EXCLUSIVE) - fmode |= AR_DENY_READ | AR_DENY_WRITE;*/ - - error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr, - OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE, - 0, fmode, &no, cnp->cn_proc, cnp->cn_cred); - if (!error) { - error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_proc,cnp->cn_cred); - fid.f_parent = VTONW(dvp)->n_fid.f_id; - fid.f_id = no.fattr.dirEntNum; - error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp); - if (!error) { - np = VTONW(vp); - np->opened = 0; - *vpp = vp; - } - if (cnp->cn_flags & MAKEENTRY) - cache_enter(dvp, vp, cnp); - } - return (error); -} - -/* - * nwfs_remove call. It isn't possible to emulate UFS behaivour because - * NetWare doesn't allow delete/rename operations on an opened file. - */ -static int -nwfs_remove(ap) - struct vop_remove_args /* { - struct vnodeop_desc *a_desc; - struct vnode * a_dvp; - struct vnode * a_vp; - struct componentname * a_cnp; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct vnode *dvp = ap->a_dvp; - struct componentname *cnp = ap->a_cnp; - struct nwnode *np = VTONW(vp); - struct nwmount *nmp = VTONWFS(vp); - int error; - - if (vp->v_type == VDIR || np->opened || vp->v_usecount != 1) - return EPERM; - cache_purge(vp); - error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id, - cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred); - if (error == 0) - np->n_flag |= NSHOULDFREE; - else if (error == 0x899c) - error = EACCES; - return (error); -} - -/* - * nwfs_file rename call - */ -static int -nwfs_rename(ap) - struct vop_rename_args /* { - struct vnode *a_fdvp; - struct vnode *a_fvp; - struct componentname *a_fcnp; - struct vnode *a_tdvp; - struct vnode *a_tvp; - struct componentname *a_tcnp; - } */ *ap; -{ - struct vnode *fvp = ap->a_fvp; - struct vnode *tvp = ap->a_tvp; - struct vnode *fdvp = ap->a_fdvp; - struct vnode *tdvp = ap->a_tdvp; - struct componentname *tcnp = ap->a_tcnp; - struct componentname *fcnp = ap->a_fcnp; - struct nwmount *nmp=VTONWFS(fvp); - u_int16_t oldtype = 6; - int error=0; - - /* Check for cross-device rename */ - if ((fvp->v_mount != tdvp->v_mount) || - (tvp && (fvp->v_mount != tvp->v_mount))) { - error = EXDEV; - goto out; - } - - if (tvp && tvp->v_usecount > 1) { - error = EBUSY; - goto out; - } - if (tvp && tvp != fvp) { - error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id, - tcnp->cn_namelen, tcnp->cn_nameptr, - tcnp->cn_proc, tcnp->cn_cred); - if (error == 0x899c) error = EACCES; - if (error) - goto out; - } - if (fvp->v_type == VDIR) { - oldtype |= NW_TYPE_SUBDIR; - } else if (fvp->v_type == VREG) { - oldtype |= NW_TYPE_FILE; - } else - return EINVAL; - error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space, - oldtype, &nmp->m.nls, - VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen, - VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen, - tcnp->cn_proc,tcnp->cn_cred); - - if (error == 0x8992) - error = EEXIST; - if (fvp->v_type == VDIR) { - if (tvp != NULL && tvp->v_type == VDIR) - cache_purge(tdvp); - cache_purge(fdvp); - } -out: - if (tdvp == tvp) - vrele(tdvp); - else - vput(tdvp); - if (tvp) - vput(tvp); - vrele(fdvp); - vrele(fvp); - nwfs_attr_cacheremove(fdvp); - nwfs_attr_cacheremove(tdvp); - nwfs_attr_cacheremove(fvp); - if (tvp) - nwfs_attr_cacheremove(tvp); - /* - * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry. - */ - if (error == ENOENT) - error = 0; - return (error); -} - -/* - * nwfs hard link create call - * Netware filesystems don't know what links are. - */ -static int -nwfs_link(ap) - struct vop_link_args /* { - struct vnode *a_tdvp; - struct vnode *a_vp; - struct componentname *a_cnp; - } */ *ap; -{ - return EOPNOTSUPP; -} - -/* - * nwfs_symlink link create call - * Netware filesystems don't know what symlinks are. - */ -static int -nwfs_symlink(ap) - struct vop_symlink_args /* { - struct vnode *a_dvp; - struct vnode **a_vpp; - struct componentname *a_cnp; - struct vattr *a_vap; - char *a_target; - } */ *ap; -{ - return (EOPNOTSUPP); -} - -static int nwfs_mknod(ap) - struct vop_mknod_args /* { - } */ *ap; -{ - return (EOPNOTSUPP); -} - -/* - * nwfs_mkdir call - */ -static int -nwfs_mkdir(ap) - struct vop_mkdir_args /* { - struct vnode *a_dvp; - struct vnode **a_vpp; - struct componentname *a_cnp; - struct vattr *a_vap; - } */ *ap; -{ - struct vnode *dvp = ap->a_dvp; -/* struct vattr *vap = ap->a_vap;*/ - struct componentname *cnp = ap->a_cnp; - int len=cnp->cn_namelen; - struct ncp_open_info no; - struct nwnode *np; - struct vnode *newvp = (struct vnode *)0; - ncpfid fid; - int error = 0; - struct vattr vattr; - char *name=cnp->cn_nameptr; - - if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) { - return (error); - } - if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) { - return EEXIST; - } - if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen, - cnp->cn_nameptr,OC_MODE_CREATE, aDIR, 0xffff, - &no, cnp->cn_proc, cnp->cn_cred) != 0) { - error = EACCES; - } else { - error = 0; - } - if (!error) { - fid.f_parent = VTONW(dvp)->n_fid.f_id; - fid.f_id = no.fattr.dirEntNum; - error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp); - if (!error) { - np = VTONW(newvp); - newvp->v_type = VDIR; - *ap->a_vpp = newvp; - } - } - return (error); -} - -/* - * nwfs_remove directory call - */ -static int -nwfs_rmdir(ap) - struct vop_rmdir_args /* { - struct vnode *a_dvp; - struct vnode *a_vp; - struct componentname *a_cnp; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct vnode *dvp = ap->a_dvp; - struct componentname *cnp = ap->a_cnp; - struct nwnode *np = VTONW(vp); - struct nwmount *nmp = VTONWFS(vp); - struct nwnode *dnp = VTONW(dvp); - int error = EIO; - - if (dvp == vp) - return EINVAL; - - error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id, - cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred); - if (error == 0) - np->n_flag |= NSHOULDFREE; - else if (error == NWE_DIR_NOT_EMPTY) - error = ENOTEMPTY; - dnp->n_flag |= NMODIFIED; - nwfs_attr_cacheremove(dvp); - cache_purge(dvp); - cache_purge(vp); - return (error); -} - -/* - * nwfs_readdir call - */ -static int -nwfs_readdir(ap) - struct vop_readdir_args /* { - struct vnode *a_vp; - struct uio *a_uio; - struct ucred *a_cred; - int *a_eofflag; - u_long *a_cookies; - int a_ncookies; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct uio *uio = ap->a_uio; - int error; - - if (vp->v_type != VDIR) - return (EPERM); - if (ap->a_ncookies) { - printf("nwfs_readdir: no support for cookies now..."); - return (EOPNOTSUPP); - } - - error = nwfs_readvnode(vp, uio, ap->a_cred); - return error; -} -/* ARGSUSED */ -static int -nwfs_fsync(ap) - struct vop_fsync_args /* { - struct vnodeop_desc *a_desc; - struct vnode * a_vp; - struct ucred * a_cred; - int a_waitfor; - struct proc * a_p; - } */ *ap; -{ -/* return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_p, 1));*/ - return (0); -} - -/* ARGSUSED */ -static -int nwfs_print (ap) - struct vop_print_args /* { - struct vnode *a_vp; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct nwnode *np = VTONW(vp); - - printf("nwfs node: name = '%s', fid = %d, pfid = %d\n", - np->n_name, np->n_fid.f_id, np->n_fid.f_parent); - return (0); -} - -static int nwfs_pathconf (ap) - struct vop_pathconf_args /* { - struct vnode *vp; - int name; - register_t *retval; - } */ *ap; -{ - int name=ap->a_name, error=0; - register_t *retval=ap->a_retval; - - switch(name){ - case _PC_LINK_MAX: - *retval=0; - break; - case _PC_NAME_MAX: - *retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */ - break; - case _PC_PATH_MAX: - *retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */ - break; - default: - error=EINVAL; - } - return(error); -} - -static int nwfs_strategy (ap) - struct vop_strategy_args /* { - struct buf *a_bp - } */ *ap; -{ - struct buf *bp=ap->a_bp; - struct ucred *cr; - struct proc *p; - int error = 0; - - NCPVNDEBUG("\n"); - if (bp->b_flags & B_PHYS) - panic("nwfs physio"); - if (bp->b_flags & B_ASYNC) - p = (struct proc *)0; - else - p = curproc; /* XXX */ - if (bp->b_iocmd == BIO_READ) - cr = bp->b_rcred; - else - cr = bp->b_wcred; - /* - * If the op is asynchronous and an i/o daemon is waiting - * queue the request, wake it up and wait for completion - * otherwise just do it ourselves. - */ - if ((bp->b_flags & B_ASYNC) == 0 ) - error = nwfs_doio(bp, cr, p); - return (error); -} - - -/* - * How to keep the brain busy ... - * Currently lookup routine can make two lookup for vnode. This can be - * avoided by reorg the code. - */ -int -nwfs_lookup(ap) - struct vop_lookup_args /* { - struct vnodeop_desc *a_desc; - struct vnode *a_dvp; - struct vnode **a_vpp; - struct componentname *a_cnp; - } */ *ap; -{ - struct componentname *cnp = ap->a_cnp; - struct vnode *dvp = ap->a_dvp; - struct vnode **vpp = ap->a_vpp; - int flags = cnp->cn_flags; - struct vnode *vp; - struct nwmount *nmp; - struct mount *mp = dvp->v_mount; - struct nwnode *dnp, *npp; - struct nw_entry_info fattr, *fap; - ncpfid fid; - int nameiop=cnp->cn_nameiop, islastcn; - int lockparent, wantparent, error = 0, notfound; - struct proc *p = cnp->cn_proc; - char _name[cnp->cn_namelen+1]; - bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen); - _name[cnp->cn_namelen]=0; - - if (dvp->v_type != VDIR) - return (ENOTDIR); - if ((flags & ISDOTDOT) && (dvp->v_flag & VROOT)) { - printf("nwfs_lookup: invalid '..'\n"); - return EIO; - } - - NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name, - VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/); - - islastcn = flags & ISLASTCN; - if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP)) - return (EROFS); - if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, p))) - return (error); - lockparent = flags & LOCKPARENT; - wantparent = flags & (LOCKPARENT|WANTPARENT); - nmp = VFSTONWFS(mp); - dnp = VTONW(dvp); -/* -printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & ISDOTDOT); -*/ - error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls, - (nameiop == CREATE || nameiop == RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0); - if (error) - return ENOENT; - - error = cache_lookup(dvp, vpp, cnp); - NCPVNDEBUG("cache_lookup returned %d\n",error); - if (error > 0) - return error; - if (error) { /* name was found */ - struct vattr vattr; - int vpid; - - vp = *vpp; - vpid = vp->v_id; - if (dvp == vp) { /* lookup on current */ - vref(vp); - error = 0; - NCPVNDEBUG("cached '.'"); - } else if (flags & ISDOTDOT) { - VOP_UNLOCK(dvp, 0, p); /* unlock parent */ - error = vget(vp, LK_EXCLUSIVE, p); - if (!error && lockparent && islastcn) - error = vn_lock(dvp, LK_EXCLUSIVE, p); - } else { - error = vget(vp, LK_EXCLUSIVE, p); - if (!lockparent || error || !islastcn) - VOP_UNLOCK(dvp, 0, p); - } - if (!error) { - if (vpid == vp->v_id) { - if (!VOP_GETATTR(vp, &vattr, cnp->cn_cred, p) - && vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) { - if (nameiop != LOOKUP && islastcn) - cnp->cn_flags |= SAVENAME; - NCPVNDEBUG("use cached vnode"); - return (0); - } - cache_purge(vp); - } - vput(vp); - if (lockparent && dvp != vp && islastcn) - VOP_UNLOCK(dvp, 0, p); - } - error = vn_lock(dvp, LK_EXCLUSIVE, p); - *vpp = NULLVP; - if (error) - return (error); - } - /* not in cache, so ... */ - error = 0; - *vpp = NULLVP; - fap = NULL; - if (flags & ISDOTDOT) { - if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) { - fid = nmp->n_rootent; - fap = NULL; - notfound = 0; - } else { - error = nwfs_lookupnp(nmp, dnp->n_parent, p, &npp); - if (error) { - return error; - } - fid = dnp->n_parent; - fap = &fattr; - /*np = *npp;*/ - notfound = ncp_obtain_info(nmp, npp->n_dosfid, - 0, NULL, fap, p, cnp->cn_cred); - } - } else { - fap = &fattr; - notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr, - fap, p, cnp->cn_cred); - fid.f_id = fap->dirEntNum; - if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') { - fid.f_parent = dnp->n_fid.f_parent; - } else - fid.f_parent = dnp->n_fid.f_id; - NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound); - } - if (notfound && notfound < 0x80 ) - return (notfound); /* hard error */ - if (notfound) { /* entry not found */ - /* Handle RENAME or CREATE case... */ - if ((nameiop == CREATE || nameiop == RENAME) && wantparent && islastcn) { - cnp->cn_flags |= SAVENAME; - if (!lockparent) - VOP_UNLOCK(dvp, 0, p); - return (EJUSTRETURN); - } - return ENOENT; - }/* else { - NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum); - }*/ - /* handle DELETE case ... */ - if (nameiop == DELETE && islastcn) { /* delete last component */ - error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_proc); - if (error) return (error); - if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */ - VREF(dvp); - *vpp = dvp; - return 0; - } - error = nwfs_nget(mp, fid, fap, dvp, &vp); - if (error) return (error); - *vpp = vp; - cnp->cn_flags |= SAVENAME; /* I free it later */ - if (!lockparent) VOP_UNLOCK(dvp,0,p); - return (0); - } - if (nameiop == RENAME && islastcn && wantparent) { - error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_proc); - if (error) return (error); - if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR; - error = nwfs_nget(mp, fid, fap, dvp, &vp); - if (error) return (error); - *vpp = vp; - cnp->cn_flags |= SAVENAME; - if (!lockparent) - VOP_UNLOCK(dvp,0,p); - return (0); - } - if (flags & ISDOTDOT) { - VOP_UNLOCK(dvp, 0, p); /* race to get the inode */ - error = nwfs_nget(mp, fid, NULL, NULL, &vp); - if (error) { - vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, p); - return (error); - } - if (lockparent && islastcn && - (error = vn_lock(dvp, LK_EXCLUSIVE, p))) { - vput(vp); - return (error); - } - *vpp = vp; - } else if (NWCMPF(&dnp->n_fid, &fid)) { - vref(dvp); - *vpp = dvp; - } else { - error = nwfs_nget(mp, fid, fap, dvp, &vp); - if (error) return (error); - *vpp = vp; - NCPVNDEBUG("lookup: getnewvp!\n"); - if (!lockparent || !islastcn) - VOP_UNLOCK(dvp, 0, p); - } - if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) { - VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec; - cache_enter(dvp, *vpp, cnp); - } - return (0); -} |
