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 2004 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) 1983, 1984, 1985, 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 * Portions of this source code were derived from Berkeley 4.3 BSD 32*0Sstevel@tonic-gate * under license from the Regents of the University of California. 33*0Sstevel@tonic-gate */ 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include <sys/types.h> 38*0Sstevel@tonic-gate #include <sys/sysmacros.h> 39*0Sstevel@tonic-gate #include <sys/param.h> 40*0Sstevel@tonic-gate #include <sys/cmn_err.h> 41*0Sstevel@tonic-gate #include <sys/debug.h> 42*0Sstevel@tonic-gate #include <rpc/types.h> 43*0Sstevel@tonic-gate #include <netinet/in.h> 44*0Sstevel@tonic-gate #include <rpc/auth.h> 45*0Sstevel@tonic-gate #include <rpc/clnt.h> 46*0Sstevel@tonic-gate #include <sys/tiuser.h> 47*0Sstevel@tonic-gate #include <sys/t_kuser.h> 48*0Sstevel@tonic-gate #include <rpc/svc.h> 49*0Sstevel@tonic-gate #include <sys/file.h> 50*0Sstevel@tonic-gate #include <sys/user.h> 51*0Sstevel@tonic-gate #include <sys/stream.h> 52*0Sstevel@tonic-gate #include <sys/strsubr.h> 53*0Sstevel@tonic-gate #include <sys/stropts.h> 54*0Sstevel@tonic-gate #include <sys/tihdr.h> 55*0Sstevel@tonic-gate #include <sys/timod.h> 56*0Sstevel@tonic-gate #include <sys/sunddi.h> 57*0Sstevel@tonic-gate #include <sys/fcntl.h> 58*0Sstevel@tonic-gate #include <sys/errno.h> 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate /* 61*0Sstevel@tonic-gate * Create server-side kernel RPC `master' transport handle 62*0Sstevel@tonic-gate * 63*0Sstevel@tonic-gate * This is public interface for creation of a server RPC transport handle 64*0Sstevel@tonic-gate * for a given file descriptor. This function is called from nfs_svc() 65*0Sstevel@tonic-gate * and lm_svc(). 66*0Sstevel@tonic-gate * 67*0Sstevel@tonic-gate * PSARC 2003/523 Contract Private Interface 68*0Sstevel@tonic-gate * svc_tli_kcreate 69*0Sstevel@tonic-gate * Changes must be reviewed by Solaris File Sharing 70*0Sstevel@tonic-gate * Changes must be communicated to contract-2003-523@sun.com 71*0Sstevel@tonic-gate * 72*0Sstevel@tonic-gate * Arguments: 73*0Sstevel@tonic-gate * - fp - connection end point 74*0Sstevel@tonic-gate * - max_msgsize - max receive size 75*0Sstevel@tonic-gate * - netid - netid 76*0Sstevel@tonic-gate * - addrmask - address mask 77*0Sstevel@tonic-gate * - nxprt - filled with outgoing transport handle 78*0Sstevel@tonic-gate * - sct - callout table to be registered with this transport handle 79*0Sstevel@tonic-gate * - closeproc - optional pointer to a closeproc for this transport or NULL 80*0Sstevel@tonic-gate * - id - RPC pool id (currently only NFS_SVCPOOL_ID or LM_SVCPOOL_ID) 81*0Sstevel@tonic-gate * - hotstream - very MT-hot flag (TRUE for NFS, FALSE for Lock Manager) 82*0Sstevel@tonic-gate * 83*0Sstevel@tonic-gate * Description: 84*0Sstevel@tonic-gate * - make sure rpcmod is on the stream 85*0Sstevel@tonic-gate * - call T_INFO_REQ to get the transport service type info 86*0Sstevel@tonic-gate * - call transport-type specific `create' routine (svc_clts_kcreate(), 87*0Sstevel@tonic-gate * svc_cots_kcreate()) to create and initialize transport for the stream 88*0Sstevel@tonic-gate * - call svc_xprt_register() to register the transport handle into the 89*0Sstevel@tonic-gate * service thread pool 90*0Sstevel@tonic-gate * - initialize transport-type independent fields (synchronization objects, 91*0Sstevel@tonic-gate * thread counts, callout table, closeproc) 92*0Sstevel@tonic-gate * - optionally, for CLTS transports tell streams framework that the 93*0Sstevel@tonic-gate * stream can be MT-hot 94*0Sstevel@tonic-gate * - call transport-type specific `start' function to tell rpcmod that 95*0Sstevel@tonic-gate * the transport is ready to receive. 96*0Sstevel@tonic-gate */ 97*0Sstevel@tonic-gate int 98*0Sstevel@tonic-gate svc_tli_kcreate( 99*0Sstevel@tonic-gate struct file *fp, /* connection end point */ 100*0Sstevel@tonic-gate uint_t max_msgsize, /* max receive size */ 101*0Sstevel@tonic-gate char *netid, 102*0Sstevel@tonic-gate struct netbuf *addrmask, 103*0Sstevel@tonic-gate SVCMASTERXPRT **nxprt, 104*0Sstevel@tonic-gate SVC_CALLOUT_TABLE *sct, 105*0Sstevel@tonic-gate void (*closeproc)(const SVCMASTERXPRT *), 106*0Sstevel@tonic-gate int id, /* thread pool */ 107*0Sstevel@tonic-gate bool_t hotstream) 108*0Sstevel@tonic-gate { 109*0Sstevel@tonic-gate queue_t *wq; 110*0Sstevel@tonic-gate SVCMASTERXPRT *xprt = NULL; /* service handle */ 111*0Sstevel@tonic-gate int retval; 112*0Sstevel@tonic-gate struct strioctl strioc; 113*0Sstevel@tonic-gate struct T_info_ack tinfo; 114*0Sstevel@tonic-gate int error; 115*0Sstevel@tonic-gate void **vp; 116*0Sstevel@tonic-gate major_t udpmaj; 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate RPCLOG(16, "svc_tli_kcreate: on file %p\n", (void *)fp); 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate if (fp == NULL || nxprt == NULL) 121*0Sstevel@tonic-gate return (EINVAL); 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate if (fp->f_vnode->v_stream == NULL) 124*0Sstevel@tonic-gate return (ENOSTR); 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate /* 127*0Sstevel@tonic-gate * Make sure that an RPC interface module is on the stream. 128*0Sstevel@tonic-gate */ 129*0Sstevel@tonic-gate wq = fp->f_vnode->v_stream->sd_wrq; 130*0Sstevel@tonic-gate while ((wq = wq->q_next) != NULL) { 131*0Sstevel@tonic-gate if (strcmp(wq->q_qinfo->qi_minfo->mi_idname, "rpcmod") == 0) 132*0Sstevel@tonic-gate break; 133*0Sstevel@tonic-gate } 134*0Sstevel@tonic-gate if (!wq) { 135*0Sstevel@tonic-gate RPCLOG0(1, "svc_tli_kcreate: no RPC module on stream\n"); 136*0Sstevel@tonic-gate return (EINVAL); 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate /* 140*0Sstevel@tonic-gate * Find out what type of transport this is. 141*0Sstevel@tonic-gate */ 142*0Sstevel@tonic-gate strioc.ic_cmd = TI_GETINFO; 143*0Sstevel@tonic-gate strioc.ic_timout = -1; 144*0Sstevel@tonic-gate strioc.ic_len = sizeof (tinfo); 145*0Sstevel@tonic-gate strioc.ic_dp = (char *)&tinfo; 146*0Sstevel@tonic-gate tinfo.PRIM_type = T_INFO_REQ; 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate error = strioctl(fp->f_vnode, I_STR, (intptr_t)&strioc, 0, K_TO_K, 149*0Sstevel@tonic-gate CRED(), &retval); 150*0Sstevel@tonic-gate if (error || retval) { 151*0Sstevel@tonic-gate RPCLOG(1, "svc_tli_kcreate: getinfo ioctl: %d\n", error); 152*0Sstevel@tonic-gate return (error); 153*0Sstevel@tonic-gate } 154*0Sstevel@tonic-gate 155*0Sstevel@tonic-gate /* 156*0Sstevel@tonic-gate * Call transport-type specific `create' function. 157*0Sstevel@tonic-gate * It will allocate transport structure. 158*0Sstevel@tonic-gate */ 159*0Sstevel@tonic-gate switch (tinfo.SERV_type) { 160*0Sstevel@tonic-gate case T_CLTS: 161*0Sstevel@tonic-gate error = svc_clts_kcreate(fp, max_msgsize, &tinfo, &xprt); 162*0Sstevel@tonic-gate break; 163*0Sstevel@tonic-gate case T_COTS: 164*0Sstevel@tonic-gate case T_COTS_ORD: 165*0Sstevel@tonic-gate error = svc_cots_kcreate(fp, max_msgsize, &tinfo, &xprt); 166*0Sstevel@tonic-gate break; 167*0Sstevel@tonic-gate default: 168*0Sstevel@tonic-gate RPCLOG(1, "svc_tli_kcreate: Bad service type %d\n", 169*0Sstevel@tonic-gate tinfo.SERV_type); 170*0Sstevel@tonic-gate error = EINVAL; 171*0Sstevel@tonic-gate } 172*0Sstevel@tonic-gate if (error) 173*0Sstevel@tonic-gate return (error); 174*0Sstevel@tonic-gate 175*0Sstevel@tonic-gate /* 176*0Sstevel@tonic-gate * Initialize transport-type independent fields. 177*0Sstevel@tonic-gate */ 178*0Sstevel@tonic-gate xprt->xp_req_head = (mblk_t *)0; 179*0Sstevel@tonic-gate xprt->xp_req_tail = (mblk_t *)0; 180*0Sstevel@tonic-gate mutex_init(&xprt->xp_req_lock, NULL, MUTEX_DEFAULT, NULL); 181*0Sstevel@tonic-gate mutex_init(&xprt->xp_thread_lock, NULL, MUTEX_DEFAULT, NULL); 182*0Sstevel@tonic-gate xprt->xp_type = tinfo.SERV_type; 183*0Sstevel@tonic-gate xprt->xp_threads = 0; 184*0Sstevel@tonic-gate xprt->xp_detached_threads = 0; 185*0Sstevel@tonic-gate xprt->xp_fp = fp; 186*0Sstevel@tonic-gate xprt->xp_wq = wq; 187*0Sstevel@tonic-gate xprt->xp_closeproc = closeproc; 188*0Sstevel@tonic-gate xprt->xp_sct = sct; 189*0Sstevel@tonic-gate xprt->xp_netid = NULL; 190*0Sstevel@tonic-gate if (netid != NULL) { 191*0Sstevel@tonic-gate xprt->xp_netid = kmem_alloc(strlen(netid) + 1, KM_SLEEP); 192*0Sstevel@tonic-gate (void) strcpy(xprt->xp_netid, netid); 193*0Sstevel@tonic-gate } 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate xprt->xp_addrmask.len = 0; 196*0Sstevel@tonic-gate xprt->xp_addrmask.maxlen = 0; 197*0Sstevel@tonic-gate xprt->xp_addrmask.buf = NULL; 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate if (addrmask != NULL) { 200*0Sstevel@tonic-gate xprt->xp_addrmask = *addrmask; 201*0Sstevel@tonic-gate } 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate /* 204*0Sstevel@tonic-gate * Register this transport handle after all fields have been 205*0Sstevel@tonic-gate * initialized. The registration can fail only if we try to register 206*0Sstevel@tonic-gate * with a non-existent pool (ENOENT) or a closing pool (EBUSY). 207*0Sstevel@tonic-gate */ 208*0Sstevel@tonic-gate if (error = svc_xprt_register(xprt, id)) { 209*0Sstevel@tonic-gate /* if there was an addrmask, caller will delete it */ 210*0Sstevel@tonic-gate xprt->xp_addrmask.maxlen = 0; 211*0Sstevel@tonic-gate SVC_DESTROY(xprt); 212*0Sstevel@tonic-gate cmn_err(CE_WARN, "svc_tli_kcreate: xprt_register failed"); 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate return (error); 215*0Sstevel@tonic-gate } 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate /* 218*0Sstevel@tonic-gate * Set the private RPC cell in the module's data. 219*0Sstevel@tonic-gate */ 220*0Sstevel@tonic-gate vp = (void **)wq->q_ptr; 221*0Sstevel@tonic-gate vp[0] = xprt; 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate /* 224*0Sstevel@tonic-gate * Inform the streams framework that the stream may be very MT hot. 225*0Sstevel@tonic-gate */ 226*0Sstevel@tonic-gate if (hotstream && tinfo.SERV_type == T_CLTS) { 227*0Sstevel@tonic-gate udpmaj = ddi_name_to_major("udp"); 228*0Sstevel@tonic-gate if (udpmaj != (major_t)-1 && 229*0Sstevel@tonic-gate getmajor(fp->f_vnode->v_rdev) == udpmaj) 230*0Sstevel@tonic-gate create_putlocks(wq, 1); 231*0Sstevel@tonic-gate } 232*0Sstevel@tonic-gate 233*0Sstevel@tonic-gate *nxprt = xprt; 234*0Sstevel@tonic-gate 235*0Sstevel@tonic-gate /* 236*0Sstevel@tonic-gate * Tell rpcmod that the transport is fully initialized and 237*0Sstevel@tonic-gate * ready to process requests. 238*0Sstevel@tonic-gate */ 239*0Sstevel@tonic-gate SVC_START(xprt); 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate return (0); 242*0Sstevel@tonic-gate } 243