1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*
43*0Sstevel@tonic-gate * Kernel TLI-like function to allocate memory for the various TLI
44*0Sstevel@tonic-gate * primitives.
45*0Sstevel@tonic-gate *
46*0Sstevel@tonic-gate * Returns 0 on success or a positive error value. On success, ptr is
47*0Sstevel@tonic-gate * set the structure required.
48*0Sstevel@tonic-gate */
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate #include <sys/param.h>
51*0Sstevel@tonic-gate #include <sys/types.h>
52*0Sstevel@tonic-gate #include <sys/user.h>
53*0Sstevel@tonic-gate #include <sys/stream.h>
54*0Sstevel@tonic-gate #include <sys/ioctl.h>
55*0Sstevel@tonic-gate #include <sys/file.h>
56*0Sstevel@tonic-gate #include <sys/stropts.h>
57*0Sstevel@tonic-gate #include <sys/tihdr.h>
58*0Sstevel@tonic-gate #include <sys/timod.h>
59*0Sstevel@tonic-gate #include <sys/tiuser.h>
60*0Sstevel@tonic-gate #include <sys/errno.h>
61*0Sstevel@tonic-gate #include <sys/signal.h>
62*0Sstevel@tonic-gate #include <sys/t_kuser.h>
63*0Sstevel@tonic-gate #include <sys/kmem.h>
64*0Sstevel@tonic-gate #include <sys/sysmacros.h>
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate static void _alloc_buf(struct netbuf *, t_scalar_t);
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate int
t_kalloc(TIUSER * tiptr,int struct_type,int fields,char ** ptr)69*0Sstevel@tonic-gate t_kalloc(TIUSER *tiptr, int struct_type, int fields, char **ptr)
70*0Sstevel@tonic-gate {
71*0Sstevel@tonic-gate union structptrs {
72*0Sstevel@tonic-gate char *caddr;
73*0Sstevel@tonic-gate struct t_bind *bind;
74*0Sstevel@tonic-gate struct t_call *call;
75*0Sstevel@tonic-gate struct t_discon *dis;
76*0Sstevel@tonic-gate struct t_optmgmt *opt;
77*0Sstevel@tonic-gate struct t_kunitdata *udata;
78*0Sstevel@tonic-gate struct t_uderr *uderr;
79*0Sstevel@tonic-gate struct t_info *info;
80*0Sstevel@tonic-gate } p;
81*0Sstevel@tonic-gate t_scalar_t dsize;
82*0Sstevel@tonic-gate
83*0Sstevel@tonic-gate if (ptr == NULL)
84*0Sstevel@tonic-gate return (EINVAL);
85*0Sstevel@tonic-gate
86*0Sstevel@tonic-gate /*
87*0Sstevel@tonic-gate * allocate appropriate structure and the specified
88*0Sstevel@tonic-gate * fields within each structure. Initialize the
89*0Sstevel@tonic-gate * 'buf' and 'maxlen' fields of each.
90*0Sstevel@tonic-gate */
91*0Sstevel@tonic-gate switch (struct_type) {
92*0Sstevel@tonic-gate case T_BIND:
93*0Sstevel@tonic-gate p.bind = kmem_zalloc(sizeof (struct t_bind), KM_SLEEP);
94*0Sstevel@tonic-gate if (fields & T_ADDR)
95*0Sstevel@tonic-gate _alloc_buf(&p.bind->addr, tiptr->tp_info.addr);
96*0Sstevel@tonic-gate *ptr = ((char *)p.bind);
97*0Sstevel@tonic-gate return (0);
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate case T_CALL:
100*0Sstevel@tonic-gate p.call = kmem_zalloc(sizeof (struct t_call), KM_SLEEP);
101*0Sstevel@tonic-gate if (fields & T_ADDR)
102*0Sstevel@tonic-gate _alloc_buf(&p.call->addr, tiptr->tp_info.addr);
103*0Sstevel@tonic-gate if (fields & T_OPT)
104*0Sstevel@tonic-gate _alloc_buf(&p.call->opt, tiptr->tp_info.options);
105*0Sstevel@tonic-gate if (fields & T_UDATA) {
106*0Sstevel@tonic-gate dsize = MAX(tiptr->tp_info.connect,
107*0Sstevel@tonic-gate tiptr->tp_info.discon);
108*0Sstevel@tonic-gate _alloc_buf(&p.call->opt, dsize);
109*0Sstevel@tonic-gate }
110*0Sstevel@tonic-gate *ptr = ((char *)p.call);
111*0Sstevel@tonic-gate return (0);
112*0Sstevel@tonic-gate
113*0Sstevel@tonic-gate case T_OPTMGMT:
114*0Sstevel@tonic-gate p.opt = kmem_zalloc(sizeof (struct t_optmgmt), KM_SLEEP);
115*0Sstevel@tonic-gate if (fields & T_OPT)
116*0Sstevel@tonic-gate _alloc_buf(&p.opt->opt, tiptr->tp_info.options);
117*0Sstevel@tonic-gate *ptr = ((char *)p.opt);
118*0Sstevel@tonic-gate return (0);
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate case T_DIS:
121*0Sstevel@tonic-gate p.dis = kmem_zalloc(sizeof (struct t_discon), KM_SLEEP);
122*0Sstevel@tonic-gate if (fields & T_UDATA)
123*0Sstevel@tonic-gate _alloc_buf(&p.dis->udata, tiptr->tp_info.discon);
124*0Sstevel@tonic-gate *ptr = ((char *)p.dis);
125*0Sstevel@tonic-gate return (0);
126*0Sstevel@tonic-gate
127*0Sstevel@tonic-gate case T_UNITDATA:
128*0Sstevel@tonic-gate p.udata = kmem_zalloc(sizeof (struct t_kunitdata), KM_SLEEP);
129*0Sstevel@tonic-gate if (fields & T_ADDR)
130*0Sstevel@tonic-gate _alloc_buf(&p.udata->addr, tiptr->tp_info.addr);
131*0Sstevel@tonic-gate else
132*0Sstevel@tonic-gate p.udata->addr.maxlen = p.udata->addr.len = 0;
133*0Sstevel@tonic-gate
134*0Sstevel@tonic-gate if (fields & T_OPT)
135*0Sstevel@tonic-gate _alloc_buf(&p.udata->opt, tiptr->tp_info.options);
136*0Sstevel@tonic-gate else
137*0Sstevel@tonic-gate p.udata->opt.maxlen = p.udata->opt.len = 0;
138*0Sstevel@tonic-gate
139*0Sstevel@tonic-gate if (fields & T_UDATA) {
140*0Sstevel@tonic-gate p.udata->udata.udata_mp = NULL;
141*0Sstevel@tonic-gate p.udata->udata.buf = NULL;
142*0Sstevel@tonic-gate p.udata->udata.maxlen = tiptr->tp_info.tsdu;
143*0Sstevel@tonic-gate p.udata->udata.len = 0;
144*0Sstevel@tonic-gate } else {
145*0Sstevel@tonic-gate p.udata->udata.maxlen = p.udata->udata.len = 0;
146*0Sstevel@tonic-gate }
147*0Sstevel@tonic-gate *ptr = (char *)p.udata;
148*0Sstevel@tonic-gate return (0);
149*0Sstevel@tonic-gate
150*0Sstevel@tonic-gate case T_UDERROR:
151*0Sstevel@tonic-gate p.uderr = kmem_zalloc(sizeof (struct t_uderr), KM_SLEEP);
152*0Sstevel@tonic-gate if (fields & T_ADDR)
153*0Sstevel@tonic-gate _alloc_buf(&p.uderr->addr, tiptr->tp_info.addr);
154*0Sstevel@tonic-gate if (fields & T_OPT)
155*0Sstevel@tonic-gate _alloc_buf(&p.uderr->opt, tiptr->tp_info.options);
156*0Sstevel@tonic-gate *ptr = (char *)p.uderr;
157*0Sstevel@tonic-gate return (0);
158*0Sstevel@tonic-gate
159*0Sstevel@tonic-gate case T_INFO:
160*0Sstevel@tonic-gate p.info = kmem_zalloc(sizeof (struct t_info), KM_SLEEP);
161*0Sstevel@tonic-gate *ptr = (char *)p.info;
162*0Sstevel@tonic-gate return (0);
163*0Sstevel@tonic-gate
164*0Sstevel@tonic-gate default:
165*0Sstevel@tonic-gate return (EINVAL);
166*0Sstevel@tonic-gate }
167*0Sstevel@tonic-gate }
168*0Sstevel@tonic-gate
169*0Sstevel@tonic-gate
170*0Sstevel@tonic-gate static void
_alloc_buf(struct netbuf * buf,t_scalar_t n)171*0Sstevel@tonic-gate _alloc_buf(struct netbuf *buf, t_scalar_t n)
172*0Sstevel@tonic-gate {
173*0Sstevel@tonic-gate switch (n) {
174*0Sstevel@tonic-gate case -1:
175*0Sstevel@tonic-gate buf->buf = kmem_zalloc(1024, KM_SLEEP);
176*0Sstevel@tonic-gate buf->maxlen = 1024;
177*0Sstevel@tonic-gate buf->len = 0;
178*0Sstevel@tonic-gate break;
179*0Sstevel@tonic-gate
180*0Sstevel@tonic-gate case 0:
181*0Sstevel@tonic-gate case -2:
182*0Sstevel@tonic-gate buf->buf = NULL;
183*0Sstevel@tonic-gate buf->maxlen = 0;
184*0Sstevel@tonic-gate buf->len = 0;
185*0Sstevel@tonic-gate break;
186*0Sstevel@tonic-gate
187*0Sstevel@tonic-gate default:
188*0Sstevel@tonic-gate buf->buf = kmem_zalloc(n, KM_SLEEP);
189*0Sstevel@tonic-gate buf->maxlen = n;
190*0Sstevel@tonic-gate buf->len = 0;
191*0Sstevel@tonic-gate break;
192*0Sstevel@tonic-gate }
193*0Sstevel@tonic-gate }
194