1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26#pragma ident "%Z%%M% %I% %E% SMI" 27 28#include <sys/types.h> 29#include <sys/conf.h> 30#include <sys/modctl.h> 31#include <sys/stream.h> 32#include <sys/strsubr.h> 33#include <sys/strsun.h> 34#include <sys/zone.h> 35#include <inet/common.h> 36#include <inet/led.h> 37#include <inet/nd.h> 38#include <netinet/in.h> 39 40#include "ncaconf.h" 41 42char _depends_on[] = "fs/sockfs drv/ip"; 43 44extern caddr_t nca_g_nd; /* Head of 'named dispatch' variable list */ 45 46#define INET_NAME "nca" 47#define INET_MODSTRTAB ncainfo 48#define INET_DEVSTRTAB ncainfo 49#define INET_MODDESC "NCA STREAMS module 1.6" 50#define INET_DEVDESC "NCA STREAMS driver 1.6" 51#define INET_DEVMINOR 0 52#define INET_DEVMTFLAGS D_MP 53#define INET_MODMTFLAGS D_MP 54 55#include "../inetddi.c" 56 57/*ARGSUSED*/ 58static int 59nca_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp) 60{ 61 /* Reopen supported */ 62 if (q->q_ptr != NULL) 63 return (0); 64 65 /* 66 * NCA is not supported in non-global zones; we enforce this restriction 67 * here. 68 */ 69 if (credp != NULL && crgetzoneid(credp) != GLOBAL_ZONEID) { 70 return (ENOTSUP); 71 } 72 73 if (! (sflag & MODOPEN)) { 74 /* Device instance */ 75 RD(q)->q_ptr = (void *)B_TRUE; 76 WR(q)->q_ptr = (void *)B_TRUE; 77 } else { 78 /* Modopen just pass through */ 79 RD(q)->q_ptr = (void *)B_FALSE; 80 WR(q)->q_ptr = (void *)B_FALSE; 81 } 82 qprocson(q); 83 return (0); 84} 85 86static int 87nca_close(queue_t *q) 88{ 89 qprocsoff(q); 90 RD(q)->q_ptr = NULL; 91 WR(q)->q_ptr = NULL; 92 return (0); 93} 94 95static void 96nca_rput(queue_t *q, mblk_t *mp) 97{ 98 /* Passthrough */ 99 putnext(q, mp); 100} 101 102static void 103nca_wput(queue_t *q, mblk_t *mp) 104{ 105 struct iocblk *iocp; 106 107 if (! (boolean_t)q->q_ptr) { 108 iocp = (struct iocblk *)mp->b_rptr; 109 if (DB_TYPE(mp) == M_IOCTL && iocp->ioc_cmd == NCA_SET_IF) { 110 miocnak(q, mp, 0, ENOTSUP); 111 return; 112 } 113 /* Module, passthrough */ 114 putnext(q, mp); 115 return; 116 } 117 118 switch (DB_TYPE(mp)) { 119 case M_IOCTL: 120 iocp = (struct iocblk *)mp->b_rptr; 121 switch (iocp->ioc_cmd) { 122 case ND_SET: 123 case ND_GET: 124 if (! nd_getset(q, nca_g_nd, mp)) { 125 miocnak(q, mp, 0, ENOENT); 126 return; 127 } 128 qreply(q, mp); 129 break; 130 default: 131 miocnak(q, mp, 0, ENOTSUP); 132 break; 133 } 134 break; 135 default: 136 freemsg(mp); 137 break; 138 } 139} 140 141static struct module_info info = { 142 0, "nca", 1, INFPSZ, 65536, 1024 143}; 144 145static struct qinit rinit = { 146 (pfi_t)nca_rput, NULL, nca_open, nca_close, NULL, &info 147}; 148 149static struct qinit winit = { 150 (pfi_t)nca_wput, NULL, nca_open, nca_close, NULL, &info 151}; 152 153struct streamtab ncainfo = { 154 &rinit, &winit 155}; 156 157int 158_init(void) 159{ 160 return (mod_install(&modlinkage)); 161} 162 163int 164_fini(void) 165{ 166 return (EBUSY); 167} 168 169int 170_info(struct modinfo *modinfop) 171{ 172 return (mod_info(&modlinkage, modinfop)); 173} 174