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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Kernel TLI-like function to allocate memory for the various TLI
* primitives.
*
* Returns 0 on success or a positive error value. On success, ptr is
* set the structure required.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/user.h>
#include <sys/stream.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/stropts.h>
#include <sys/tihdr.h>
#include <sys/timod.h>
#include <sys/tiuser.h>
#include <sys/errno.h>
#include <sys/signal.h>
#include <sys/t_kuser.h>
#include <sys/kmem.h>
#include <sys/sysmacros.h>
static void _alloc_buf(struct netbuf *, t_scalar_t);
int
t_kalloc(TIUSER *tiptr, int struct_type, int fields, char **ptr)
{
union structptrs {
char *caddr;
struct t_bind *bind;
struct t_call *call;
struct t_discon *dis;
struct t_optmgmt *opt;
struct t_kunitdata *udata;
struct t_uderr *uderr;
struct t_info *info;
} p;
t_scalar_t dsize;
if (ptr == NULL)
return (EINVAL);
/*
* allocate appropriate structure and the specified
* fields within each structure. Initialize the
* 'buf' and 'maxlen' fields of each.
*/
switch (struct_type) {
case T_BIND:
p.bind = kmem_zalloc(sizeof (struct t_bind), KM_SLEEP);
if (fields & T_ADDR)
_alloc_buf(&p.bind->addr, tiptr->tp_info.addr);
*ptr = ((char *)p.bind);
return (0);
case T_CALL:
p.call = kmem_zalloc(sizeof (struct t_call), KM_SLEEP);
if (fields & T_ADDR)
_alloc_buf(&p.call->addr, tiptr->tp_info.addr);
if (fields & T_OPT)
_alloc_buf(&p.call->opt, tiptr->tp_info.options);
if (fields & T_UDATA) {
dsize = MAX(tiptr->tp_info.connect,
tiptr->tp_info.discon);
_alloc_buf(&p.call->opt, dsize);
}
*ptr = ((char *)p.call);
return (0);
case T_OPTMGMT:
p.opt = kmem_zalloc(sizeof (struct t_optmgmt), KM_SLEEP);
if (fields & T_OPT)
_alloc_buf(&p.opt->opt, tiptr->tp_info.options);
*ptr = ((char *)p.opt);
return (0);
case T_DIS:
p.dis = kmem_zalloc(sizeof (struct t_discon), KM_SLEEP);
if (fields & T_UDATA)
_alloc_buf(&p.dis->udata, tiptr->tp_info.discon);
*ptr = ((char *)p.dis);
return (0);
case T_UNITDATA:
p.udata = kmem_zalloc(sizeof (struct t_kunitdata), KM_SLEEP);
if (fields & T_ADDR)
_alloc_buf(&p.udata->addr, tiptr->tp_info.addr);
else
p.udata->addr.maxlen = p.udata->addr.len = 0;
if (fields & T_OPT)
_alloc_buf(&p.udata->opt, tiptr->tp_info.options);
else
p.udata->opt.maxlen = p.udata->opt.len = 0;
if (fields & T_UDATA) {
p.udata->udata.udata_mp = NULL;
p.udata->udata.buf = NULL;
p.udata->udata.maxlen = tiptr->tp_info.tsdu;
p.udata->udata.len = 0;
} else {
p.udata->udata.maxlen = p.udata->udata.len = 0;
}
*ptr = (char *)p.udata;
return (0);
case T_UDERROR:
p.uderr = kmem_zalloc(sizeof (struct t_uderr), KM_SLEEP);
if (fields & T_ADDR)
_alloc_buf(&p.uderr->addr, tiptr->tp_info.addr);
if (fields & T_OPT)
_alloc_buf(&p.uderr->opt, tiptr->tp_info.options);
*ptr = (char *)p.uderr;
return (0);
case T_INFO:
p.info = kmem_zalloc(sizeof (struct t_info), KM_SLEEP);
*ptr = (char *)p.info;
return (0);
default:
return (EINVAL);
}
}
static void
_alloc_buf(struct netbuf *buf, t_scalar_t n)
{
switch (n) {
case -1:
buf->buf = kmem_zalloc(1024, KM_SLEEP);
buf->maxlen = 1024;
buf->len = 0;
break;
case 0:
case -2:
buf->buf = NULL;
buf->maxlen = 0;
buf->len = 0;
break;
default:
buf->buf = kmem_zalloc(n, KM_SLEEP);
buf->maxlen = n;
buf->len = 0;
break;
}
}
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