/*
* 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;
}
