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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2011 Bayard G. Bell. All rights reserved.
*/
#include <sys/types.h>
#include <sys/conf.h>
#include <sys/modctl.h>
#include <sys/stream.h>
#include <sys/strsubr.h>
#include <sys/strsun.h>
#include <sys/zone.h>
#include <inet/common.h>
#include <inet/led.h>
#include <inet/nd.h>
#include <netinet/in.h>
#include "ncaconf.h"
extern caddr_t nca_g_nd; /* Head of 'named dispatch' variable list */
#define INET_NAME "nca"
#define INET_MODSTRTAB ncainfo
#define INET_DEVSTRTAB ncainfo
#define INET_MODDESC "NCA STREAMS module 1.6"
#define INET_DEVDESC "NCA STREAMS driver 1.6"
#define INET_DEVMINOR 0
#define INET_DEVMTFLAGS D_MP
#define INET_MODMTFLAGS D_MP
#include "../inetddi.c"
/*ARGSUSED*/
static int
nca_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp)
{
/* Reopen supported */
if (q->q_ptr != NULL)
return (0);
/*
* NCA is not supported in non-global zones; we enforce this restriction
* here.
*/
if (credp != NULL && crgetzoneid(credp) != GLOBAL_ZONEID) {
return (ENOTSUP);
}
if (! (sflag & MODOPEN)) {
/* Device instance */
RD(q)->q_ptr = (void *)B_TRUE;
WR(q)->q_ptr = (void *)B_TRUE;
} else {
/* Modopen just pass through */
RD(q)->q_ptr = (void *)B_FALSE;
WR(q)->q_ptr = (void *)B_FALSE;
}
qprocson(q);
return (0);
}
static int
nca_close(queue_t *q)
{
qprocsoff(q);
RD(q)->q_ptr = NULL;
WR(q)->q_ptr = NULL;
return (0);
}
static void
nca_rput(queue_t *q, mblk_t *mp)
{
/* Passthrough */
putnext(q, mp);
}
static void
nca_wput(queue_t *q, mblk_t *mp)
{
struct iocblk *iocp;
if (! (boolean_t)q->q_ptr) {
iocp = (struct iocblk *)mp->b_rptr;
if (DB_TYPE(mp) == M_IOCTL && iocp->ioc_cmd == NCA_SET_IF) {
miocnak(q, mp, 0, ENOTSUP);
return;
}
/* Module, passthrough */
putnext(q, mp);
return;
}
switch (DB_TYPE(mp)) {
case M_IOCTL:
iocp = (struct iocblk *)mp->b_rptr;
switch (iocp->ioc_cmd) {
case ND_SET:
case ND_GET:
if (! nd_getset(q, nca_g_nd, mp)) {
miocnak(q, mp, 0, ENOENT);
return;
}
qreply(q, mp);
break;
default:
miocnak(q, mp, 0, ENOTSUP);
break;
}
break;
default:
freemsg(mp);
break;
}
}
static struct module_info info = {
0, "nca", 1, INFPSZ, 65536, 1024
};
static struct qinit rinit = {
(pfi_t)nca_rput, NULL, nca_open, nca_close, NULL, &info
};
static struct qinit winit = {
(pfi_t)nca_wput, NULL, nca_open, nca_close, NULL, &info
};
struct streamtab ncainfo = {
&rinit, &winit
};
int
_init(void)
{
return (mod_install(&modlinkage));
}
int
_fini(void)
{
return (EBUSY);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
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