procfs_status.c revision 1.27.8.2
1 /* $NetBSD: procfs_status.c,v 1.27.8.2 2006/11/17 16:34:40 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Jan-Simon Pendry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 35 */ 36 37 /* 38 * Copyright (c) 1993 Jan-Simon Pendry 39 * 40 * This code is derived from software contributed to Berkeley by 41 * Jan-Simon Pendry. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: procfs_status.c,v 1.27.8.2 2006/11/17 16:34:40 ad Exp $"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/time.h> 80 #include <sys/kernel.h> 81 #include <sys/proc.h> 82 #include <sys/vnode.h> 83 #include <sys/ioctl.h> 84 #include <sys/tty.h> 85 #include <sys/resource.h> 86 #include <sys/resourcevar.h> 87 #include <sys/kauth.h> 88 89 #include <miscfs/procfs/procfs.h> 90 91 int 92 procfs_dostatus(curl, l, pfs, uio) 93 struct lwp *curl; 94 struct lwp *l; 95 struct pfsnode *pfs; 96 struct uio *uio; 97 { 98 struct session *sess; 99 struct tty *tp; 100 kauth_cred_t cr; 101 struct proc *p = l->l_proc; 102 char *ps; 103 const char *sep; 104 int pid, ppid, pgid, sid; 105 u_int i; 106 char psbuf[256+MAXHOSTNAMELEN]; /* XXX - conservative */ 107 uint16_t ngroups; 108 109 if (uio->uio_rw != UIO_READ) 110 return (EOPNOTSUPP); 111 112 rw_enter(&proclist_lock, RW_READER); 113 mutex_enter(&p->p_mutex); 114 115 pid = p->p_pid; 116 ppid = p->p_pptr ? p->p_pptr->p_pid : 0, 117 pgid = p->p_pgrp->pg_id; 118 sess = p->p_pgrp->pg_session; 119 sid = sess->s_sid; 120 121 /* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg uid gid groups ... */ 122 123 ps = psbuf; 124 memcpy(ps, p->p_comm, MAXCOMLEN); 125 ps[MAXCOMLEN] = '\0'; 126 ps += strlen(ps); 127 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d %d %d %d ", 128 pid, ppid, pgid, sid); 129 130 if ((p->p_lflag & PL_CONTROLT) && (tp = sess->s_ttyp)) 131 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d,%d ", 132 major(tp->t_dev), minor(tp->t_dev)); 133 else 134 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d,%d ", 135 -1, -1); 136 137 sep = ""; 138 if (sess->s_ttyvp) { 139 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%sctty", sep); 140 sep = ","; 141 } 142 if (SESS_LEADER(p)) { 143 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%ssldr", sep); 144 sep = ","; 145 } 146 if (*sep != ',') 147 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "noflags"); 148 149 mutex_enter(&p->p_smutex); 150 if (l->l_flag & L_INMEM) 151 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %ld,%ld", 152 p->p_stats->p_start.tv_sec, p->p_stats->p_start.tv_usec); 153 else 154 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " -1,-1"); 155 156 { 157 struct timeval ut, st; 158 159 calcru(p, &ut, &st, (void *) 0, NULL); 160 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), 161 " %ld,%ld %ld,%ld", ut.tv_sec, ut.tv_usec, st.tv_sec, 162 st.tv_usec); 163 } 164 mutex_exit(&p->p_smutex); 165 166 lwp_lock(l); 167 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %s", 168 (l->l_wchan && l->l_wmesg) ? l->l_wmesg : "nochan"); 169 lwp_unlock(l); 170 171 cr = p->p_cred; 172 173 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d", 174 kauth_cred_geteuid(cr)); 175 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d", 176 kauth_cred_getegid(cr)); 177 ngroups = kauth_cred_ngroups(cr); 178 for (i = 0; i < ngroups; i++) 179 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), ",%d", 180 kauth_cred_group(cr, i)); 181 ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "\n"); 182 183 mutex_exit(&p->p_mutex); 184 rw_exit(&proclist_lock); 185 186 return (uiomove_frombuf(psbuf, ps - psbuf, uio)); 187 } 188
Indexes created Wed Oct 01 13:09:50 GMT 2025