70cd771337
provide no methods does not make any sense, and is not used by any driver. It is a pretty hard to come up with even a theoretical concept of a device driver which would always fail open and close with ENODEV. Change the defaults to be nullopen() and nullclose() which simply does nothing. Remove explicit initializations to these from the drivers which already used them.
526 lines
13 KiB
C
526 lines
13 KiB
C
/*
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* Copyright (c) 2003 Tim J. Robbins.
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* Copyright (c) 1999, 2000, 2001 Boris Popov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Boris Popov.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <sys/malloc.h>
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#include <sys/uio.h>
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#include <sys/ioccom.h>
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#include <netncp/ncp.h>
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#include <netncp/ncp_conn.h>
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#include <netncp/ncp_subr.h>
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#include <netncp/ncp_ncp.h>
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#include <netncp/ncp_user.h>
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#include <netncp/ncp_rq.h>
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#include <netncp/ncp_nls.h>
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#include <netncp/ncpio.h>
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int ncp_version = NCP_VERSION;
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SYSCTL_NODE(_net, OID_AUTO, ncp, CTLFLAG_RW, NULL, "NetWare requester");
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SYSCTL_INT(_net_ncp, OID_AUTO, version, CTLFLAG_RD, &ncp_version, 0, "");
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MODULE_VERSION(ncp, 1);
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MODULE_DEPEND(ncp, libmchain, 1, 1, 1);
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static dev_t ncp_dev;
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static d_ioctl_t ncp_ioctl;
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static struct cdevsw ncp_cdevsw = {
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.d_ioctl = ncp_ioctl,
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.d_name = "ncp",
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};
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static int ncp_conn_frag_rq(struct ncp_conn *, struct thread *,
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struct ncp_conn_frag *);
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static int ncp_conn_handler(struct thread *, struct ncpioc_request *,
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struct ncp_conn *, struct ncp_handle *);
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static int sncp_conn_scan(struct thread *, struct ncpioc_connscan *);
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static int sncp_connect(struct thread *, struct ncpioc_connect *);
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static int sncp_request(struct thread *, struct ncpioc_request *);
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static int
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ncp_ioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
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{
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switch (cmd) {
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case NCPIOC_CONNECT:
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return (sncp_connect(td, (struct ncpioc_connect *)data));
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case NCPIOC_CONNSCAN:
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return (sncp_conn_scan(td, (struct ncpioc_connscan *)data));
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case NCPIOC_REQUEST:
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return (sncp_request(td, (struct ncpioc_request *)data));
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}
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return (EINVAL);
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}
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/*
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* Attach to NCP server
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*/
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static int
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sncp_connect(struct thread *td, struct ncpioc_connect *args)
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{
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int connHandle = 0, error;
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struct ncp_conn *conn;
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struct ncp_handle *handle;
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struct ncp_conn_args li;
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checkbad(copyin(args->ioc_li,&li,sizeof(li)));
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/* XXX Should be useracc() */
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checkbad(copyout(&connHandle,args->ioc_connhandle,
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sizeof(connHandle)));
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li.password = li.user = NULL;
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error = ncp_conn_getattached(&li, td, td->td_ucred, NCPM_WRITE | NCPM_EXECUTE, &conn);
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if (error) {
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error = ncp_conn_alloc(&li, td, td->td_ucred, &conn);
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if (error)
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goto bad;
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error = ncp_conn_reconnect(conn);
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if (error)
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ncp_conn_free(conn);
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}
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if (!error) {
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error = ncp_conn_gethandle(conn, td, &handle);
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copyout(&handle->nh_id, args->ioc_connhandle,
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sizeof(args->ioc_connhandle));
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ncp_conn_unlock(conn,td);
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}
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bad:
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return error;
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}
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static int
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sncp_request(struct thread *td, struct ncpioc_request *args)
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{
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struct ncp_rq *rqp;
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struct ncp_conn *conn;
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struct ncp_handle *handle;
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int error = 0, rqsize;
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error = ncp_conn_findhandle(args->ioc_connhandle, td, &handle);
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if (error)
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return error;
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conn = handle->nh_conn;
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if (args->ioc_fn == NCP_CONN)
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return ncp_conn_handler(td, args, conn, handle);
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error = copyin(&args->ioc_ncpbuf->rqsize, &rqsize, sizeof(int));
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if (error)
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return(error);
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error = ncp_rq_alloc(args->ioc_fn, conn, td, td->td_ucred, &rqp);
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if (error)
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return error;
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if (rqsize) {
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error = mb_put_mem(&rqp->rq, (caddr_t)args->ioc_ncpbuf->packet,
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rqsize, MB_MUSER);
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if (error)
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goto bad;
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}
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rqp->nr_flags |= NCPR_DONTFREEONERR;
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error = ncp_request(rqp);
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if (error == 0 && rqp->nr_rpsize)
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error = md_get_mem(&rqp->rp, (caddr_t)args->ioc_ncpbuf->packet,
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rqp->nr_rpsize, MB_MUSER);
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copyout(&rqp->nr_cs, &args->ioc_ncpbuf->cs, sizeof(rqp->nr_cs));
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copyout(&rqp->nr_cc, &args->ioc_ncpbuf->cc, sizeof(rqp->nr_cc));
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copyout(&rqp->nr_rpsize, &args->ioc_ncpbuf->rpsize, sizeof(rqp->nr_rpsize));
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bad:
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ncp_rq_done(rqp);
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return error;
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}
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static int
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ncp_mod_login(struct ncp_conn *conn, char *user, int objtype, char *password,
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struct thread *td, struct ucred *cred)
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{
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int error;
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if (ncp_suser(cred) != 0 && cred->cr_uid != conn->nc_owner->cr_uid)
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return EACCES;
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conn->li.user = ncp_str_dup(user);
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if (conn->li.user == NULL)
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return ENOMEM;
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conn->li.password = ncp_str_dup(password);
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if (conn->li.password == NULL) {
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error = ENOMEM;
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goto bad;
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}
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ncp_str_upper(conn->li.user);
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if ((conn->li.opt & NCP_OPT_NOUPCASEPASS) == 0)
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ncp_str_upper(conn->li.password);
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conn->li.objtype = objtype;
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error = ncp_conn_login(conn, td, cred);
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return error;
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bad:
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if (conn->li.user) {
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free(conn->li.user, M_NCPDATA);
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conn->li.user = NULL;
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}
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if (conn->li.password) {
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free(conn->li.password, M_NCPDATA);
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conn->li.password = NULL;
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}
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return error;
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}
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static int
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ncp_conn_handler(struct thread *td, struct ncpioc_request *args,
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struct ncp_conn *conn, struct ncp_handle *hp)
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{
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int error = 0, rqsize, subfn;
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struct ucred *cred;
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char *pdata;
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cred = td->td_ucred;
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error = copyin(&args->ioc_ncpbuf->rqsize, &rqsize, sizeof(int));
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if (error)
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return(error);
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error = 0;
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pdata = args->ioc_ncpbuf->packet;
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subfn = *(pdata++) & 0xff;
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rqsize--;
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switch (subfn) {
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case NCP_CONN_READ: case NCP_CONN_WRITE: {
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struct ncp_rw rwrq;
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struct uio auio;
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struct iovec iov;
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if (rqsize != sizeof(rwrq))
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return (EBADRPC);
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error = copyin(pdata,&rwrq,rqsize);
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if (error)
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return (error);
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iov.iov_base = rwrq.nrw_base;
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iov.iov_len = rwrq.nrw_cnt;
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auio.uio_iov = &iov;
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auio.uio_iovcnt = 1;
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auio.uio_offset = rwrq.nrw_offset;
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auio.uio_resid = rwrq.nrw_cnt;
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auio.uio_segflg = UIO_USERSPACE;
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auio.uio_rw = (subfn == NCP_CONN_READ) ? UIO_READ : UIO_WRITE;
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auio.uio_td = td;
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if (subfn == NCP_CONN_READ)
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error = ncp_read(conn, &rwrq.nrw_fh, &auio, cred);
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else
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error = ncp_write(conn, &rwrq.nrw_fh, &auio, cred);
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rwrq.nrw_cnt -= auio.uio_resid;
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/*td->td_retval[0] = rwrq.nrw_cnt;*/
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break;
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} /* case int_read/write */
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case NCP_CONN_SETFLAGS: {
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u_int16_t mask, flags;
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error = copyin(pdata,&mask, sizeof(mask));
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if (error)
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return error;
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pdata += sizeof(mask);
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error = copyin(pdata,&flags,sizeof(flags));
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if (error)
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return error;
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error = ncp_conn_lock(conn, td, cred, NCPM_WRITE);
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if (error)
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return error;
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if (mask & NCPFL_PERMANENT) {
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conn->flags &= ~NCPFL_PERMANENT;
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conn->flags |= (flags & NCPFL_PERMANENT);
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}
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if (mask & NCPFL_PRIMARY) {
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error = ncp_conn_setprimary(conn, flags & NCPFL_PRIMARY);
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if (error) {
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ncp_conn_unlock(conn, td);
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break;
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}
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}
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ncp_conn_unlock(conn, td);
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break;
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}
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case NCP_CONN_LOGIN: {
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struct ncp_conn_login la;
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if (rqsize != sizeof(la))
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return EBADRPC;
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if (conn->flags & NCPFL_LOGGED)
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return EALREADY;
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if ((error = copyin(pdata,&la,rqsize)) != 0)
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break;
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error = ncp_conn_lock(conn, td, cred, NCPM_EXECUTE | NCPM_WRITE);
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if (error)
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return error;
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error = ncp_mod_login(conn, la.username, la.objtype,
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la.password, td, td->td_ucred);
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ncp_conn_unlock(conn, td);
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break;
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}
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case NCP_CONN_GETINFO: {
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struct ncp_conn_stat ncs;
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int len = sizeof(ncs);
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error = ncp_conn_lock(conn, td, td->td_ucred, NCPM_READ);
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if (error)
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return error;
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ncp_conn_getinfo(conn, &ncs);
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copyout(&len, &args->ioc_ncpbuf->rpsize, sizeof(int));
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error = copyout(&ncs, &args->ioc_ncpbuf->packet, len);
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ncp_conn_unlock(conn, td);
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break;
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}
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case NCP_CONN_GETUSER: {
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int len;
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error = ncp_conn_lock(conn, td, td->td_ucred, NCPM_READ);
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if (error)
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return error;
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len = (conn->li.user) ? strlen(conn->li.user) + 1 : 0;
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copyout(&len, &args->ioc_ncpbuf->rpsize, sizeof(int));
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if (len) {
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error = copyout(conn->li.user,
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&args->ioc_ncpbuf->packet, len);
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}
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ncp_conn_unlock(conn, td);
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break;
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}
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case NCP_CONN_CONN2REF: {
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int len = sizeof(int);
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error = ncp_conn_lock(conn, td, td->td_ucred, NCPM_READ);
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if (error)
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return error;
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copyout(&len, &args->ioc_ncpbuf->rpsize, sizeof(int));
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if (len) {
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error = copyout(&conn->nc_id,
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&args->ioc_ncpbuf->packet, len);
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}
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ncp_conn_unlock(conn, td);
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break;
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}
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case NCP_CONN_FRAG: {
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struct ncp_conn_frag nf;
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if (rqsize != sizeof(nf))
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return (EBADRPC);
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if ((error = copyin(pdata, &nf, rqsize)) != 0) break;
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error = ncp_conn_lock(conn, td, cred, NCPM_EXECUTE);
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if (error)
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return error;
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error = ncp_conn_frag_rq(conn, td, &nf);
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ncp_conn_unlock(conn, td);
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copyout(&nf, &pdata, sizeof(nf));
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td->td_retval[0] = error;
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break;
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}
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case NCP_CONN_DUP: {
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struct ncp_handle *newhp;
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int len = sizeof(NWCONN_HANDLE);
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error = ncp_conn_lock(conn, td, cred, NCPM_READ);
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if (error) break;
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copyout(&len, &args->ioc_ncpbuf->rpsize, len);
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error = ncp_conn_gethandle(conn, td, &newhp);
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if (!error)
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error = copyout(&newhp->nh_id,
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args->ioc_ncpbuf->packet, len);
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ncp_conn_unlock(conn, td);
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break;
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}
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case NCP_CONN_CONNCLOSE: {
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error = ncp_conn_lock(conn, td, cred, NCPM_EXECUTE);
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if (error) break;
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ncp_conn_puthandle(hp, td, 0);
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error = ncp_conn_free(conn);
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if (error)
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ncp_conn_unlock(conn, td);
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break;
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}
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default:
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error = EOPNOTSUPP;
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}
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return error;
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}
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static int
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sncp_conn_scan(struct thread *td, struct ncpioc_connscan *args)
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{
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int connHandle = 0, error;
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struct ncp_conn_args li, *lip;
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struct ncp_conn *conn;
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struct ncp_handle *hp;
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char *user = NULL, *password = NULL;
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if (args->ioc_li) {
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if (copyin(args->ioc_li, &li, sizeof(li)))
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return EFAULT;
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lip = &li;
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} else {
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lip = NULL;
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}
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if (lip != NULL) {
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lip->server[sizeof(lip->server)-1]=0; /* just to make sure */
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ncp_str_upper(lip->server);
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if (lip->user) {
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user = ncp_str_dup(lip->user);
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if (user == NULL)
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return EINVAL;
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ncp_str_upper(user);
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}
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if (lip->password) {
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password = ncp_str_dup(lip->password);
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if (password == NULL) {
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if (user)
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free(user, M_NCPDATA);
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return EINVAL;
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}
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ncp_str_upper(password);
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}
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lip->user = user;
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lip->password = password;
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}
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error = ncp_conn_getbyli(lip, td, td->td_ucred, NCPM_EXECUTE, &conn);
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if (!error) { /* already have this login */
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ncp_conn_gethandle(conn, td, &hp);
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connHandle = hp->nh_id;
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ncp_conn_unlock(conn, td);
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copyout(&connHandle, args->ioc_connhandle, sizeof(connHandle));
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}
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if (user)
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free(user, M_NCPDATA);
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if (password)
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free(password, M_NCPDATA);
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return error;
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}
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|
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int
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ncp_conn_frag_rq(struct ncp_conn *conn, struct thread *td,
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struct ncp_conn_frag *nfp)
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{
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NW_FRAGMENT *fp;
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struct ncp_rq *rqp;
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u_int32_t fsize;
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int error, i, rpsize;
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error = ncp_rq_alloc(nfp->fn, conn, td, td->td_ucred, &rqp);
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if (error)
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return error;
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for(fp = nfp->rqf, i = 0; i < nfp->rqfcnt; i++, fp++) {
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error = mb_put_mem(&rqp->rq, (caddr_t)fp->fragAddress, fp->fragSize, MB_MUSER);
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if (error)
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goto bad;
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}
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rqp->nr_flags |= NCPR_DONTFREEONERR;
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error = ncp_request(rqp);
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if (error)
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goto bad;
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rpsize = rqp->nr_rpsize;
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if (rpsize && nfp->rpfcnt) {
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for(fp = nfp->rpf, i = 0; i < nfp->rpfcnt; i++, fp++) {
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error = copyin(&fp->fragSize, &fsize, sizeof (fsize));
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if (error)
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break;
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fsize = min(fsize, rpsize);
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error = md_get_mem(&rqp->rp, (caddr_t)fp->fragAddress, fsize, MB_MUSER);
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if (error)
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break;
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rpsize -= fsize;
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error = copyout(&fsize, &fp->fragSize, sizeof (fsize));
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if (error)
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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);
|