2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1993 Jan-Simon Pendry
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
38 * $Id: procfs_status.c,v 3.1 1993/12/15 09:40:17 jsp Exp $
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/systm.h>
46 #include <sys/mutex.h>
48 #include <sys/malloc.h>
49 #include <sys/mutex.h>
52 #include <sys/resourcevar.h>
58 #include <vm/vm_param.h>
60 #include <fs/pseudofs/pseudofs.h>
61 #include <fs/procfs/procfs.h>
64 procfs_doprocstatus(PFS_FILL_ARGS)
67 struct thread *tdfirst;
73 struct timeval boottime;
74 int pid, ppid, pgid, sid;
79 ppid = p->p_pptr ? p->p_pptr->p_pid : 0;
80 pgid = p->p_pgrp->pg_id;
81 sess = p->p_pgrp->pg_session;
83 sid = sess->s_leader ? sess->s_leader->p_pid : 0;
85 /* comm pid ppid pgid sid tty ctty,sldr start ut st wmsg
86 euid ruid rgid,egid,groups[1 .. ngroups]
91 if (*pc < 33 || *pc > 126 || *pc == '\\')
92 sbuf_printf(sb, "\\%03o", *pc);
96 sbuf_printf(sb, " %d %d %d %d ", pid, ppid, pgid, sid);
97 if ((p->p_flag & P_CONTROLT) && (tp = sess->s_ttyp))
98 sbuf_printf(sb, "%s ", devtoname(tp->t_dev));
100 sbuf_printf(sb, "- ");
104 sbuf_printf(sb, "%sctty", sep);
107 if (SESS_LEADER(p)) {
108 sbuf_printf(sb, "%ssldr", sep);
113 sbuf_printf(sb, "noflags");
116 tdfirst = FIRST_THREAD_IN_PROC(p);
117 thread_lock(tdfirst);
118 if (tdfirst->td_wchan != NULL) {
119 KASSERT(tdfirst->td_wmesg != NULL,
120 ("wchan %p has no wmesg", tdfirst->td_wchan));
121 wmesg = tdfirst->td_wmesg;
124 thread_unlock(tdfirst);
126 if (p->p_flag & P_INMEM) {
127 struct timeval start, ut, st;
132 start = p->p_stats->p_start;
133 getboottime(&boottime);
134 timevaladd(&start, &boottime);
135 sbuf_printf(sb, " %jd,%ld %jd,%ld %jd,%ld",
136 (intmax_t)start.tv_sec, start.tv_usec,
137 (intmax_t)ut.tv_sec, ut.tv_usec,
138 (intmax_t)st.tv_sec, st.tv_usec);
140 sbuf_printf(sb, " -1,-1 -1,-1 -1,-1");
142 sbuf_printf(sb, " %s", wmesg);
146 sbuf_printf(sb, " %lu %lu %lu",
149 (u_long)cr->cr_rgid);
151 /* egid (cr->cr_svgid) is equal to cr_ngroups[0]
152 see also getegid(2) in /sys/kern/kern_prot.c */
154 for (i = 0; i < cr->cr_ngroups; i++) {
155 sbuf_printf(sb, ",%lu", (u_long)cr->cr_groups[i]);
159 mtx_lock(&cr->cr_prison->pr_mtx);
160 sbuf_printf(sb, " %s",
161 prison_name(td->td_ucred->cr_prison, cr->cr_prison));
162 mtx_unlock(&cr->cr_prison->pr_mtx);
164 sbuf_printf(sb, " -");
167 sbuf_printf(sb, "\n");
173 procfs_doproccmdline(PFS_FILL_ARGS)
177 * If we are using the ps/cmdline caching, use that. Otherwise
178 * read argv from the process space.
179 * Note that if the argv is no longer available, we deliberately
180 * don't fall back on p->p_comm or return an error: the authentic
181 * Linux behaviour is to return zero-length in this case.
185 if (p->p_args && p_cansee(td, p) == 0) {
186 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length);
191 if ((p->p_flag & P_SYSTEM) != 0) {
198 return (proc_getargv(td, p, sb));