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) 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 #ifndef _SYS_SESSION_H 32*0Sstevel@tonic-gate #define _SYS_SESSION_H 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #ifdef __cplusplus 37*0Sstevel@tonic-gate extern "C" { 38*0Sstevel@tonic-gate #endif 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate typedef struct sess { 41*0Sstevel@tonic-gate uint_t s_ref; /* reference count */ 42*0Sstevel@tonic-gate mode_t s_mode; /* /sess current permissions */ 43*0Sstevel@tonic-gate uid_t s_uid; /* /sess current user ID */ 44*0Sstevel@tonic-gate gid_t s_gid; /* /sess current group ID */ 45*0Sstevel@tonic-gate time_t s_ctime; /* /sess change time */ 46*0Sstevel@tonic-gate dev_t s_dev; /* tty's device number */ 47*0Sstevel@tonic-gate struct vnode *s_vp; /* tty's vnode */ 48*0Sstevel@tonic-gate struct pid *s_sidp; /* session ID info */ 49*0Sstevel@tonic-gate struct cred *s_cred; /* allocation credentials */ 50*0Sstevel@tonic-gate kmutex_t s_lock; /* sync s_vp use with freectty */ 51*0Sstevel@tonic-gate kcondvar_t s_wait_cv; /* Condvar for sleeping */ 52*0Sstevel@tonic-gate int s_cnt; /* # of active users of this session */ 53*0Sstevel@tonic-gate int s_flag; /* session state flag see below */ 54*0Sstevel@tonic-gate } sess_t; 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate #define SESS_CLOSE 1 /* session about to close */ 57*0Sstevel@tonic-gate #define s_sid s_sidp->pid_id 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate /* 60*0Sstevel@tonic-gate * Enumeration of the types of access that can be requested for a 61*0Sstevel@tonic-gate * controlling terminal under job control. 62*0Sstevel@tonic-gate */ 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate enum jcaccess { 65*0Sstevel@tonic-gate JCREAD, /* read data on a ctty */ 66*0Sstevel@tonic-gate JCWRITE, /* write data to a ctty */ 67*0Sstevel@tonic-gate JCSETP, /* set ctty parameters */ 68*0Sstevel@tonic-gate JCGETP /* get ctty parameters */ 69*0Sstevel@tonic-gate }; 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate #if defined(_KERNEL) 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate extern sess_t session0; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate #define SESS_HOLD(sp) (++(sp)->s_ref) 76*0Sstevel@tonic-gate #define SESS_RELE(sp) sess_rele(sp) 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* 79*0Sstevel@tonic-gate * Used to synchronizing sessions vnode users with freectty 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate #define TTY_HOLD(sp) { \ 83*0Sstevel@tonic-gate mutex_enter(&(sp)->s_lock); \ 84*0Sstevel@tonic-gate (++(sp)->s_cnt); \ 85*0Sstevel@tonic-gate mutex_exit(&(sp)->s_lock); \ 86*0Sstevel@tonic-gate } 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate #define TTY_RELE(sp) { \ 89*0Sstevel@tonic-gate mutex_enter(&(sp)->s_lock); \ 90*0Sstevel@tonic-gate if ((--(sp)->s_cnt) == 0) \ 91*0Sstevel@tonic-gate cv_signal(&(sp)->s_wait_cv); \ 92*0Sstevel@tonic-gate mutex_exit(&(sp)->s_lock); \ 93*0Sstevel@tonic-gate } 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate /* forward referenced structure tags */ 96*0Sstevel@tonic-gate struct vnode; 97*0Sstevel@tonic-gate struct cred; 98*0Sstevel@tonic-gate struct proc; 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate extern void sess_rele(sess_t *); 101*0Sstevel@tonic-gate extern void sess_create(void); 102*0Sstevel@tonic-gate extern void freectty(sess_t *); 103*0Sstevel@tonic-gate extern void alloctty(struct proc *, struct vnode *); 104*0Sstevel@tonic-gate extern dev_t cttydev(struct proc *); 105*0Sstevel@tonic-gate extern int hascttyperm(sess_t *, struct cred *, mode_t); 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate #endif /* defined(_KERNEL) */ 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate #ifdef __cplusplus 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate #endif 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate #endif /* _SYS_SESSION_H */ 114