/* Unmount the filesystem described by mp. */
static int
nwfs_unmount(struct mount *mp, int mntflags)
{
struct nwmount *nmp = VFSTONWFS(mp);
struct ncp_conn *conn;
int error, flags;
NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
flags = 0;
if (mntflags & MNT_FORCE)
flags |= FORCECLOSE;
/* There is 1 extra root vnode reference from nwfs_mount(). */
error = vflush(mp, 1, flags);
if (error)
return (error);
conn = NWFSTOCONN(nmp);
ncp_conn_puthandle(nmp->connh,NULL,0);
if (ncp_conn_lock(conn, curthread, proc0.p_ucred, NCPM_WRITE | NCPM_EXECUTE) == 0) {
if(ncp_disconnect(conn))
ncp_conn_unlock(conn, curthread);
}
mp->mnt_data = (qaddr_t)0;
if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
kfree(nmp->m.nls.to_lower, M_NWFSDATA);
kfree(nmp, M_NWFSDATA);
mp->mnt_flag &= ~MNT_LOCAL;
return (error);
}
/*ARGSUSED*/
int
nwfs_uninit(struct vfsconf *vfsp)
{
nwfs_hash_free();
NCPVODEBUG("unloaded\n");
return (0);
}
/*ARGSUSED*/
int
nwfs_init(struct vfsconf *vfsp)
{
#ifndef SMP
if (ncpus > 1)
kprintf("warning: nwfs module compiled without SMP support.");
#endif
nwfs_hash_init();
nwfs_pbuf_freecnt = nswbuf / 2 + 1;
NCPVODEBUG("always happy to load!\n");
return (0);
}
/*ARGSUSED*/
int
nwfs_init(struct vfsconf *vfsp)
{
#ifndef SMP
int name[2];
int ncpu, error;
size_t olen, plen;
name[0] = CTL_HW;
name[1] = HW_NCPU;
error = kernel_sysctl(name, 2, &ncpu, &olen, NULL, 0, &plen);
if (error == 0 && ncpu > 1)
kprintf("warning: nwfs module compiled without SMP support.");
#endif
nwfs_hash_init();
nwfs_pbuf_freecnt = nswbuf / 2 + 1;
NCPVODEBUG("always happy to load!\n");
return (0);
}
/* Return locked vnode to root of a filesystem */
static int
nwfs_root(struct mount *mp, struct vnode **vpp)
{
struct vnode *vp;
struct nwmount *nmp;
struct nwnode *np;
struct ncp_conn *conn;
struct nw_entry_info fattr;
struct thread *td = curthread; /* XXX */
struct ucred *cred;
int error, nsf, opt;
u_char vol;
KKASSERT(td->td_proc);
cred = td->td_proc->p_ucred;
nmp = VFSTONWFS(mp);
conn = NWFSTOCONN(nmp);
if (nmp->n_root) {
*vpp = NWTOV(nmp->n_root);
while (vget(*vpp, LK_EXCLUSIVE) != 0) /* XXX */
;
return 0;
}
error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
&nmp->n_rootent.f_id, td, cred);
if (error)
return ENOENT;
nmp->n_volume = vol;
error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
if (error)
return ENOENT;
if (nsf & NW_NSB_OS2) {
NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
nmp->name_space = NW_NS_OS2;
nmp->m.nls.opt &= ~NWHP_DOS;
}
}
opt = nmp->m.nls.opt;
nsf = opt & (NWHP_UPPER | NWHP_LOWER);
if (opt & NWHP_DOS) {
if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
} else if (nsf == 0) {
nmp->m.nls.opt |= NWHP_LOWER;
}
} else {
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, td, 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, td, 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, td, 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);
vsetflags(vp, VROOT);
np = VTONW(vp);
if (nmp->m.root_path[0] == 0)
np->n_flag |= NVOLUME;
nmp->n_root = np;
/* error = VOP_GETATTR(vp, &vattr);
if (error) {
vput(vp);
NCPFATAL("Can't get root directory entry\n");
return error;
}*/
*vpp = vp;
return (0);
}
/*
* mp - path - addr in user space of mount point (ie /usr or whatever)
* data - addr in user space of mount params
*/
static int
nwfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
{
struct nwfs_args args; /* will hold data from mount request */
int error;
struct nwmount *nmp = NULL;
struct ncp_conn *conn = NULL;
struct ncp_handle *handle = NULL;
struct vnode *vp;
char *pc,*pe;
if (data == NULL) {
nwfs_printf("missing data argument\n");
return 1;
}
if (mp->mnt_flag & MNT_UPDATE) {
nwfs_printf("MNT_UPDATE not implemented");
return (EOPNOTSUPP);
}
error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
if (error)
return (error);
if (args.version != NWFS_VERSION) {
nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
return (1);
}
error = ncp_conn_getbyref(args.connRef,curthread,cred,NCPM_EXECUTE,&conn);
if (error) {
nwfs_printf("invalid connection reference %d\n",args.connRef);
return (error);
}
error = ncp_conn_gethandle(conn, NULL, &handle);
if (error) {
nwfs_printf("can't get connection handle\n");
return (error);
}
ncp_conn_unlock(conn,curthread); /* we keep the ref */
mp->mnt_stat.f_iosize = conn->buffer_size;
/* We must malloc our own mount info */
nmp = kmalloc(sizeof(struct nwmount), M_NWFSDATA,
M_WAITOK | M_USE_RESERVE | M_ZERO);
mp->mnt_data = (qaddr_t)nmp;
nmp->connh = handle;
nmp->n_root = NULL;
nmp->n_id = nwfsid++;
nmp->m = args;
nmp->m.file_mode = (nmp->m.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
nmp->m.dir_mode = (nmp->m.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
if ((error = nwfs_initnls(nmp)) != 0) goto bad;
pc = mp->mnt_stat.f_mntfromname;
pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
bzero(pc, MNAMELEN);
*(pc++) = '/';
pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = ':';
pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = '/';
strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
}
}
/* protect against invalid mount points */
nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
vfs_add_vnodeops(mp, &nwfs_vnode_vops, &mp->mnt_vn_norm_ops);
vfs_getnewfsid(mp);
error = nwfs_root(mp, &vp);
if (error)
goto bad;
/*
* Lose the lock but keep the ref.
*/
vn_unlock(vp);
NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_sysref.refcnt);
return error;
bad:
if (nmp)
kfree(nmp, M_NWFSDATA);
if (handle)
ncp_conn_puthandle(handle, NULL, 0);
return error;
}
/*
* mp - path - addr in user space of mount point (ie /usr or whatever)
* data - addr in user space of mount params
*/
static int nwfs_mount(struct mount *mp)
{
struct nwfs_args args; /* will hold data from mount request */
int error;
struct nwmount *nmp = NULL;
struct ncp_conn *conn = NULL;
struct ncp_handle *handle = NULL;
struct vnode *vp;
struct thread *td;
char *pc,*pe;
td = curthread;
if (mp->mnt_flag & MNT_ROOTFS)
return (EOPNOTSUPP);
if (mp->mnt_flag & MNT_UPDATE) {
nwfs_printf("MNT_UPDATE not implemented");
return (EOPNOTSUPP);
}
error = vfs_copyopt(mp->mnt_optnew, "nwfs_args", &args, sizeof args);
if (error)
return (error);
if (args.version != NWFS_VERSION) {
nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
return (1);
}
error = ncp_conn_getbyref(args.connRef, td , td->td_ucred,NCPM_EXECUTE,&conn);
if (error) {
nwfs_printf("invalid connection refernce %d\n",args.connRef);
return (error);
}
error = ncp_conn_gethandle(conn, NULL, &handle);
if (error) {
nwfs_printf("can't get connection handle\n");
return (error);
}
ncp_conn_unlock(conn, td); /* we keep the ref */
mp->mnt_stat.f_iosize = conn->buffer_size;
/* We must malloc our own mount info */
nmp = malloc(sizeof(struct nwmount),M_NWFSDATA,
M_WAITOK | M_USE_RESERVE | M_ZERO);
if (nmp == NULL) {
nwfs_printf("could not alloc nwmount\n");
error = ENOMEM;
goto bad;
}
mp->mnt_data = nmp;
nmp->connh = handle;
nmp->n_root = NULL;
nmp->n_id = nwfsid++;
nmp->m = args;
nmp->m.file_mode = (nmp->m.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
nmp->m.dir_mode = (nmp->m.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
if ((error = nwfs_initnls(nmp)) != 0) goto bad;
pc = mp->mnt_stat.f_mntfromname;
pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
bzero(pc, MNAMELEN);
*(pc++) = '/';
pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = ':';
pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = '/';
strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
}
}
/* protect against invalid mount points */
nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
vfs_getnewfsid(mp);
error = nwfs_root(mp, LK_EXCLUSIVE, &vp);
if (error)
goto bad;
/*
* Lose the lock but keep the ref.
*/
VOP_UNLOCK(vp, 0);
NCPVODEBUG("rootvp.vrefcnt=%d\n",vrefcnt(vp));
return error;
bad:
if (nmp)
free(nmp, M_NWFSDATA);
if (handle)
ncp_conn_puthandle(handle, NULL, 0);
return error;
}