/*-
* Copyright (c) 2003 Tim J. Robbins.
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <sys/malloc.h>
#include <sys/uio.h>
#include <sys/ioccom.h>
#include <netncp/ncp.h>
#include <netncp/ncp_conn.h>
#include <netncp/ncp_subr.h>
#include <netncp/ncp_ncp.h>
#include <netncp/ncp_user.h>
#include <netncp/ncp_rq.h>
#include <netncp/ncp_nls.h>
#include <netncp/ncpio.h>
int ncp_version = NCP_VERSION;
SYSCTL_NODE(_net, OID_AUTO, ncp, CTLFLAG_RW, NULL, "NetWare requester");
SYSCTL_INT(_net_ncp, OID_AUTO, version, CTLFLAG_RD, &ncp_version, 0, "");
MODULE_VERSION(ncp, 1);
MODULE_DEPEND(ncp, libmchain, 1, 1, 1);
static struct cdev *ncp_dev;
static d_ioctl_t ncp_ioctl;
static struct cdevsw ncp_cdevsw = {
.d_version = D_VERSION,
.d_flags = D_NEEDGIANT,
.d_ioctl = ncp_ioctl,
.d_name = "ncp",
};
static int ncp_conn_frag_rq(struct ncp_conn *, struct thread *,
struct ncp_conn_frag *);
static int ncp_conn_handler(struct thread *, struct ncpioc_request *,
struct ncp_conn *, struct ncp_handle *);
static int sncp_conn_scan(struct thread *, struct ncpioc_connscan *);
static int sncp_connect(struct thread *, struct ncpioc_connect *);
static int sncp_request(struct thread *, struct ncpioc_request *);
static int
ncp_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
switch (cmd) {
case NCPIOC_CONNECT:
return (sncp_connect(td, (struct ncpioc_connect *)data));
case NCPIOC_CONNSCAN:
return (sncp_conn_scan(td, (struct ncpioc_connscan *)data));
case NCPIOC_REQUEST:
return (sncp_request(td, (struct ncpioc_request *)data));
}
return (EINVAL);
}
/*
* Attach to NCP server
*/
static int
sncp_connect(struct thread *td, struct ncpioc_connect *args)
{
int connHandle = 0, error;
struct ncp_conn *conn;
struct ncp_handle *handle;
struct ncp_conn_args li;
checkbad(copyin(args->ioc_li,&li,sizeof(li)));
/* XXX Should be useracc() */
checkbad(copyout(&connHandle,args->ioc_connhandle,
sizeof(connHandle)));
li.password = li.user = NULL;
error = ncp_conn_getattached(&li, td, td->td_ucred, NCPM_WRITE | NCPM_EXECUTE, &conn);
if (error) {
error = ncp_conn_alloc(&li, td, td->td_ucred, &conn);
if (error)
goto bad;
error = ncp_conn_reconnect(conn);
if (error)
ncp_conn_free(conn);
}
if (!error) {
error = ncp_conn_gethandle(conn, td, &handle);
copyout(&handle->nh_id, args->ioc_connhandle,
sizeof(args->ioc_connhandle));
ncp_conn_unlock(conn,td);
}
bad:
return error;
}
static int
sncp_request(struct thread *td, struct ncpioc_request *args)
{
struct ncp_rq *rqp;
struct ncp_conn *conn;
struct ncp_handle *handle;
int error = 0, rqsize;
error = ncp_conn_findhandle(args->ioc_connhandle, td, &handle);
if (error)
return error;
conn = handle->nh_conn;
if (args->ioc_fn == NCP_CONN)
return ncp_conn_handler(td, args, conn, handle);
error = copyin(&args->ioc_ncpbuf->rqsize, &rqsize, sizeof(int));
if (error)
return(error);
error = ncp_rq_alloc(args->ioc_fn, conn, td, td->td_ucred, &rqp);
if (error)
return error;
if (rqsize) {
error = mb_put_mem(&rqp->rq, (caddr_t)args->ioc_ncpbuf->packet,
rqsize, MB_MUSER);
if (error)
goto bad;
}
rqp->nr_flags |= NCPR_DONTFREEONERR;
error = ncp_request(rqp);
if (error == 0 && rqp->nr_rpsize)
error = md_get_mem(&rqp->rp, (caddr_t)args->ioc_ncpbuf->packet,
rqp->nr_rpsize, MB_MUSER);
copyout(&rqp->nr_cs, &args->ioc_ncpbuf->cs, sizeof(rqp->nr_cs));
copyout(&rqp->nr_cc, &args->ioc_ncpbuf->cc, sizeof(rqp->nr_cc));
copyout(&rqp->nr_rpsize, &args->ioc_ncpbuf->rpsize, sizeof(rqp->nr_rpsize));
bad:
ncp_rq_done(rqp);
return error;
}
static int
ncp_mod_login(struct ncp_conn *conn, char *user, int objtype, char *password,
struct thread *td, struct ucred *cred)
{
int error;
if (ncp_suser(cred) != 0 && cred->cr_uid != conn->nc_owner->cr_uid)
return EACCES;
conn->li.user = ncp_str_dup(user);
if (conn->li.user == NULL)
return ENOMEM;
conn->li.password = ncp_str_dup(password);
if (conn->li.password == NULL) {
error = ENOMEM;
goto bad;
}
ncp_str_upper(conn->li.user);
if ((conn->li.opt & NCP_OPT_NOUPCASEPASS) == 0)
ncp_str_upper(conn->li.password);
conn->li.objtype = objtype;
error = ncp_conn_login(conn, td, cred);
return error;
bad:
if (conn->li.user) {
free(conn->li.user, M_NCPDATA);
conn->li.user = NULL;
}
if (conn->li.password) {
free(conn->li.password, M_NCPDATA);
conn->li.password = NULL;
}
return error;
}
static int
ncp_conn_handler(struct thread *td, struct ncpioc_request *args,
struct ncp_conn *conn, struct ncp_handle *hp)
{
int error = 0, rqsize, subfn;
struct ucred *cred;
char *pdata;
cred = td->td_ucred;
error = copyin(&args->ioc_ncpbuf->rqsize, &rqsize, sizeof(int));
if (error)
return(error);
error = 0;
pdata = args->ioc_ncpbuf->packet;
subfn = *(pdata++) & 0xff;
rqsize--;
switch (subfn) {
case NCP_CONN_READ: case NCP_CONN_WRITE: {
struct ncp_rw rwrq;
struct uio auio;
struct iovec iov;
if (rqsize != sizeof(rwrq))
return (EBADRPC);
error = copyin(pdata,&rwrq,rqsize);
if (error)
return (error);
iov.iov_base = rwrq.nrw_base;
iov.iov_len = rwrq.nrw_cnt;
auio.uio_iov = &iov;
auio.uio_iovcnt = 1;
auio.uio_offset = rwrq.nrw_offset;
auio.uio_resid = rwrq.nrw_cnt;
auio.uio_segflg = UIO_USERSPACE;
auio.uio_rw = (subfn == NCP_CONN_READ) ? UIO_READ : UIO_WRITE;
auio.uio_td = td;
if (subfn == NCP_CONN_READ)
error = ncp_read(conn, &rwrq.nrw_fh, &auio, cred);
else
error = ncp_write(conn, &rwrq.nrw_fh, &auio, cred);
rwrq.nrw_cnt -= auio.uio_resid;
/*td->td_retval[0] = rwrq.nrw_cnt;*/
break;
} /* case int_read/write */
case NCP_CONN_SETFLAGS: {
u_int16_t mask, flags;
error = copyin(pdata,&mask, sizeof(mask));
if (error)
return error;
pdata += sizeof(mask);
error = copyin(pdata,&flags,sizeof(flags));
if (error)
return error;
error = ncp_conn_lock(conn, td, cred, NCPM_WRITE);
if (error)
return error;
if (mask & NCPFL_PERMANENT) {
conn->flags &= ~NCPFL_PERMANENT;
conn->flags |= (flags & NCPFL_PERMANENT);
}
if (mask & NCPFL_PRIMARY) {
error = ncp_conn_setprimary(conn, flags & NCPFL_PRIMARY);
if (error) {
ncp_conn_unlock(conn, td);
break;
}
}
ncp_conn_unlock(conn, td);
break;
}
case NCP_CONN_LOGIN: {
struct ncp_conn_login la;
if (rqsize != sizeof(la))
return EBADRPC;
if (conn->flags & NCPFL_LOGGED)
return EALREADY;
if ((error = copyin(pdata,&la,rqsize)) != 0)
break;
error = ncp_conn_lock(conn, td, cred, NCPM_EXECUTE | NCPM_WRITE);
if (error)
return error;
error = ncp_mod_login(conn, la.username, la.objtype,
la.password, td, td->td_ucred);
ncp_conn_unlock(conn, td);
break;
}
case NCP_CONN_GETINFO: {
struct ncp_conn_stat ncs;
int len = sizeof(ncs);
error = ncp_conn_lock(conn, td, td->td_ucred, NCPM_READ);
if (error)
return error;
ncp_conn_getinfo(conn, &ncs);
copyout(&len, &args->ioc_ncpbuf->rpsize, sizeof(int));
error = copyout(&ncs, &args->ioc_ncpbuf->packet, len);
ncp_conn_unlock(conn, td);
break;
}
case NCP_CONN_GETUSER: {
int len;
error = ncp_conn_lock(conn, td, td->td_ucred, NCPM_READ);
if (error)
return error;
len = (conn->li.user) ? strlen(conn->li.user) + 1 : 0;
copyout(&len, &args->ioc_ncpbuf->rpsize, sizeof(int));
if (len) {
error = copyout(conn->li.user,
&args->ioc_ncpbuf->packet, len);
}
ncp_conn_unlock(conn, td);
break;
}
case NCP_CONN_CONN2REF: {
int len = sizeof(int);
error = ncp_conn_lock(conn, td, td->td_ucred, NCPM_READ);
if (error)
return error;
copyout(&len, &args->ioc_ncpbuf->rpsize, sizeof(int));
if (len) {
error = copyout(&conn->nc_id,
&args->ioc_ncpbuf->packet, len);
}
ncp_conn_unlock(conn, td);
break;
}
case NCP_CONN_FRAG: {
struct ncp_conn_frag nf;
if (rqsize != sizeof(nf))
return (EBADRPC);
if ((error = copyin(pdata, &nf, rqsize)) != 0) break;
error = ncp_conn_lock(conn, td, cred, NCPM_EXECUTE);
if (error)
return error;
error = ncp_conn_frag_rq(conn, td, &nf);
ncp_conn_unlock(conn, td);
copyout(&nf, &pdata, sizeof(nf));
td->td_retval[0] = error;
break;
}
case NCP_CONN_DUP: {
struct ncp_handle *newhp;
int len = sizeof(NWCONN_HANDLE);
error = ncp_conn_lock(conn, td, cred, NCPM_READ);
if (error) break;
copyout(&len, &args->ioc_ncpbuf->rpsize, len);
error = ncp_conn_gethandle(conn, td, &newhp);
if (!error)
error = copyout(&newhp->nh_id,
args->ioc_ncpbuf->packet, len);
ncp_conn_unlock(conn, td);
break;
}
case NCP_CONN_CONNCLOSE: {
error = ncp_conn_lock(conn, td, cred, NCPM_EXECUTE);
if (error) break;
ncp_conn_puthandle(hp, td, 0);
error = ncp_conn_free(conn);
if (error)
ncp_conn_unlock(conn, td);
break;
}
default:
error = EOPNOTSUPP;
}
return error;
}
static int
sncp_conn_scan(struct thread *td, struct ncpioc_connscan *args)
{
int connHandle = 0, error;
struct ncp_conn_args li, *lip;
struct ncp_conn *conn;
struct ncp_handle *hp;
char *user = NULL, *password = NULL;
if (args->ioc_li) {
if (copyin(args->ioc_li, &li, sizeof(li)))
return EFAULT;
lip = &li;
} else {
lip = NULL;
}
if (lip != NULL) {
lip->server[sizeof(lip->server)-1]=0; /* just to make sure */
ncp_str_upper(lip->server);
if (lip->user) {
user = ncp_str_dup(lip->user);
if (user == NULL)
return EINVAL;
ncp_str_upper(user);
}
if (lip->password) {
password = ncp_str_dup(lip->password);
if (password == NULL) {
if (user)
free(user, M_NCPDATA);
return EINVAL;
}
ncp_str_upper(password);
}
lip->user = user;
lip->password = password;
}
error = ncp_conn_getbyli(lip, td, td->td_ucred, NCPM_EXECUTE, &conn);
if (!error) { /* already have this login */
ncp_conn_gethandle(conn, td, &hp);
connHandle = hp->nh_id;
ncp_conn_unlock(conn, td);
copyout(&connHandle, args->ioc_connhandle, sizeof(connHandle));
}
if (user)
free(user, M_NCPDATA);
if (password)
free(password, M_NCPDATA);
return error;
}
int
ncp_conn_frag_rq(struct ncp_conn *conn, struct thread *td,
struct ncp_conn_frag *nfp)
{
NW_FRAGMENT *fp;
struct ncp_rq *rqp;
u_int32_t fsize;
int error, i, rpsize;
error = ncp_rq_alloc(nfp->fn, conn, td, td->td_ucred, &rqp);
if (error)
return error;
for(fp = nfp->rqf, i = 0; i < nfp->rqfcnt; i++, fp++) {
error = mb_put_mem(&rqp->rq, (caddr_t)fp->fragAddress, fp->fragSize, MB_MUSER);
if (error)
goto bad;
}
rqp->nr_flags |= NCPR_DONTFREEONERR;
error = ncp_request(rqp);
if (error)
goto bad;
rpsize = rqp->nr_rpsize;
if (rpsize && nfp->rpfcnt) {
for(fp = nfp->rpf, i = 0; i < nfp->rpfcnt; i++, fp++) {
error = copyin(&fp->fragSize, &fsize, sizeof (fsize));
if (error)
break;
fsize = min(fsize, rpsize);
error = md_get_mem(&rqp->rp, (caddr_t)fp->fragAddress, fsize, MB_MUSER);
if (error)
break;
rpsize -= fsize;
error = copyout(&fsize, &fp->fragSize, sizeof (fsize));
if (error)
break;
}
}
nfp->cs = rqp->nr_cs;
nfp->cc = rqp->nr_cc;
bad:
ncp_rq_done(rqp);
return error;
}
static int
ncp_load(void)
{
int error;
if ((error = ncp_init()) != 0)
return (error);
ncp_dev = make_dev(&ncp_cdevsw, 0, 0, 0, 0666, "ncp");
printf("ncp_load: loaded\n");
return (0);
}
static int
ncp_unload(void)
{
int error;
error = ncp_done();
if (error)
return (error);
destroy_dev(ncp_dev);
printf("ncp_unload: unloaded\n");
return (0);
}
static int
ncp_mod_handler(module_t mod, int type, void *data)
{
int error;
switch (type) {
case MOD_LOAD:
error = ncp_load();
break;
case MOD_UNLOAD:
error = ncp_unload();
break;
default:
error = EINVAL;
}
return error;
}
static moduledata_t ncp_mod = {
"ncp",
ncp_mod_handler,
NULL
};
DECLARE_MODULE(ncp, ncp_mod, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY);
