1/*
2 * Copyright (c) 1993 Jan-Simon Pendry
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Jan-Simon Pendry.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
38 *
39 * From:
40 * $Id: procfs_status.c,v 3.1 1993/12/15 09:40:17 jsp Exp $
| 1/*
2 * Copyright (c) 1993 Jan-Simon Pendry
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Jan-Simon Pendry.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
38 *
39 * From:
40 * $Id: procfs_status.c,v 3.1 1993/12/15 09:40:17 jsp Exp $
|
41 * $FreeBSD: head/sys/fs/procfs/procfs_status.c 103767 2002-09-21 22:07:17Z jake $
| 41 * $FreeBSD: head/sys/fs/procfs/procfs_status.c 111585 2003-02-27 02:05:19Z julian $
|
42 */
43
44#include <sys/param.h>
45#include <sys/systm.h>
46#include <sys/exec.h>
47#include <sys/lock.h>
48#include <sys/mutex.h>
49#include <sys/jail.h>
50#include <sys/malloc.h>
51#include <sys/mutex.h>
52#include <sys/sx.h>
53#include <sys/proc.h>
54#include <sys/resourcevar.h>
55#include <sys/sbuf.h>
56#include <sys/sysent.h>
57#include <sys/tty.h>
58
59#include <vm/vm.h>
60#include <vm/pmap.h>
61#include <vm/vm_param.h>
62
63#include <fs/pseudofs/pseudofs.h>
64#include <fs/procfs/procfs.h>
65
66int
67procfs_doprocstatus(PFS_FILL_ARGS)
68{
69 struct session *sess;
70 struct thread *tdfirst;
71 struct tty *tp;
72 struct ucred *cr;
73 char *pc;
74 char *sep;
75 int pid, ppid, pgid, sid;
76 int i;
77
78 pid = p->p_pid;
79 PROC_LOCK(p);
80 ppid = p->p_pptr ? p->p_pptr->p_pid : 0;
81 pgid = p->p_pgrp->pg_id;
82 sess = p->p_pgrp->pg_session;
83 SESS_LOCK(sess);
84 sid = sess->s_leader ? sess->s_leader->p_pid : 0;
85
86/* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg
87 euid ruid rgid,egid,groups[1 .. NGROUPS]
88*/
89
90 pc = p->p_comm;
91 do {
92 if (*pc < 33 || *pc > 126 || *pc == '\\')
93 sbuf_printf(sb, "\\%03o", *pc);
94 else
95 sbuf_putc(sb, *pc);
96 } while (*++pc);
97 sbuf_printf(sb, " %d %d %d %d ", pid, ppid, pgid, sid);
98 if ((p->p_flag&P_CONTROLT) && (tp = sess->s_ttyp))
99 sbuf_printf(sb, "%d,%d ", major(tp->t_dev), minor(tp->t_dev));
100 else
101 sbuf_printf(sb, "%d,%d ", -1, -1);
102
103 sep = "";
104 if (sess->s_ttyvp) {
105 sbuf_printf(sb, "%sctty", sep);
106 sep = ",";
107 }
108 if (SESS_LEADER(p)) {
109 sbuf_printf(sb, "%ssldr", sep);
110 sep = ",";
111 }
112 SESS_UNLOCK(sess);
113 if (*sep != ',') {
114 sbuf_printf(sb, "noflags");
115 }
116
117 mtx_lock_spin(&sched_lock);
118 if (p->p_sflag & PS_INMEM) {
119 struct timeval ut, st;
120
121 calcru(p, &ut, &st, (struct timeval *) NULL);
122 mtx_unlock_spin(&sched_lock);
123 sbuf_printf(sb, " %lld,%ld %ld,%ld %ld,%ld",
124 (long long)p->p_stats->p_start.tv_sec,
125 p->p_stats->p_start.tv_usec,
126 ut.tv_sec, ut.tv_usec,
127 st.tv_sec, st.tv_usec);
128 } else {
129 mtx_unlock_spin(&sched_lock);
130 sbuf_printf(sb, " -1,-1 -1,-1 -1,-1");
131 }
132
| 42 */
43
44#include <sys/param.h>
45#include <sys/systm.h>
46#include <sys/exec.h>
47#include <sys/lock.h>
48#include <sys/mutex.h>
49#include <sys/jail.h>
50#include <sys/malloc.h>
51#include <sys/mutex.h>
52#include <sys/sx.h>
53#include <sys/proc.h>
54#include <sys/resourcevar.h>
55#include <sys/sbuf.h>
56#include <sys/sysent.h>
57#include <sys/tty.h>
58
59#include <vm/vm.h>
60#include <vm/pmap.h>
61#include <vm/vm_param.h>
62
63#include <fs/pseudofs/pseudofs.h>
64#include <fs/procfs/procfs.h>
65
66int
67procfs_doprocstatus(PFS_FILL_ARGS)
68{
69 struct session *sess;
70 struct thread *tdfirst;
71 struct tty *tp;
72 struct ucred *cr;
73 char *pc;
74 char *sep;
75 int pid, ppid, pgid, sid;
76 int i;
77
78 pid = p->p_pid;
79 PROC_LOCK(p);
80 ppid = p->p_pptr ? p->p_pptr->p_pid : 0;
81 pgid = p->p_pgrp->pg_id;
82 sess = p->p_pgrp->pg_session;
83 SESS_LOCK(sess);
84 sid = sess->s_leader ? sess->s_leader->p_pid : 0;
85
86/* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg
87 euid ruid rgid,egid,groups[1 .. NGROUPS]
88*/
89
90 pc = p->p_comm;
91 do {
92 if (*pc < 33 || *pc > 126 || *pc == '\\')
93 sbuf_printf(sb, "\\%03o", *pc);
94 else
95 sbuf_putc(sb, *pc);
96 } while (*++pc);
97 sbuf_printf(sb, " %d %d %d %d ", pid, ppid, pgid, sid);
98 if ((p->p_flag&P_CONTROLT) && (tp = sess->s_ttyp))
99 sbuf_printf(sb, "%d,%d ", major(tp->t_dev), minor(tp->t_dev));
100 else
101 sbuf_printf(sb, "%d,%d ", -1, -1);
102
103 sep = "";
104 if (sess->s_ttyvp) {
105 sbuf_printf(sb, "%sctty", sep);
106 sep = ",";
107 }
108 if (SESS_LEADER(p)) {
109 sbuf_printf(sb, "%ssldr", sep);
110 sep = ",";
111 }
112 SESS_UNLOCK(sess);
113 if (*sep != ',') {
114 sbuf_printf(sb, "noflags");
115 }
116
117 mtx_lock_spin(&sched_lock);
118 if (p->p_sflag & PS_INMEM) {
119 struct timeval ut, st;
120
121 calcru(p, &ut, &st, (struct timeval *) NULL);
122 mtx_unlock_spin(&sched_lock);
123 sbuf_printf(sb, " %lld,%ld %ld,%ld %ld,%ld",
124 (long long)p->p_stats->p_start.tv_sec,
125 p->p_stats->p_start.tv_usec,
126 ut.tv_sec, ut.tv_usec,
127 st.tv_sec, st.tv_usec);
128 } else {
129 mtx_unlock_spin(&sched_lock);
130 sbuf_printf(sb, " -1,-1 -1,-1 -1,-1");
131 }
132
|
133 if (p->p_flag & P_KSES)
| 133 if (p->p_flag & P_THREADED)
|
134 sbuf_printf(sb, " %s", "-kse- ");
135 else {
136 tdfirst = FIRST_THREAD_IN_PROC(p); /* XXX diff from td? */
137 sbuf_printf(sb, " %s",
138 (tdfirst->td_wchan && tdfirst->td_wmesg) ?
139 tdfirst->td_wmesg : "nochan");
140 }
141
142 cr = p->p_ucred;
143
144 sbuf_printf(sb, " %lu %lu %lu",
145 (u_long)cr->cr_uid,
146 (u_long)cr->cr_ruid,
147 (u_long)cr->cr_rgid);
148
149 /* egid (cr->cr_svgid) is equal to cr_ngroups[0]
150 see also getegid(2) in /sys/kern/kern_prot.c */
151
152 for (i = 0; i < cr->cr_ngroups; i++) {
153 sbuf_printf(sb, ",%lu", (u_long)cr->cr_groups[i]);
154 }
155
156 if (jailed(p->p_ucred)) {
157 mtx_lock(&p->p_ucred->cr_prison->pr_mtx);
158 sbuf_printf(sb, " %s", p->p_ucred->cr_prison->pr_host);
159 mtx_unlock(&p->p_ucred->cr_prison->pr_mtx);
160 } else {
161 sbuf_printf(sb, " -");
162 }
163 PROC_UNLOCK(p);
164 sbuf_printf(sb, "\n");
165
166 return (0);
167}
168
169int
170procfs_doproccmdline(PFS_FILL_ARGS)
171{
172 struct ps_strings pstr;
173 int error, i;
174
175 /*
176 * If we are using the ps/cmdline caching, use that. Otherwise
177 * revert back to the old way which only implements full cmdline
178 * for the currept process and just p->p_comm for all other
179 * processes.
180 * Note that if the argv is no longer available, we deliberately
181 * don't fall back on p->p_comm or return an error: the authentic
182 * Linux behaviour is to return zero-length in this case.
183 */
184
185 PROC_LOCK(p);
186 if (p->p_args && (ps_argsopen || !p_cansee(td, p))) {
187 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length);
188 PROC_UNLOCK(p);
189 return (0);
190 }
191 PROC_UNLOCK(p);
192 if (p != td->td_proc) {
193 sbuf_printf(sb, "%.*s", MAXCOMLEN, p->p_comm);
194 } else {
195 error = copyin((void *)p->p_sysent->sv_psstrings, &pstr,
196 sizeof(pstr));
197 if (error)
198 return (error);
199 for (i = 0; i < pstr.ps_nargvstr; i++) {
200 sbuf_copyin(sb, pstr.ps_argvstr[i], 0);
201 sbuf_printf(sb, "%c", '\0');
202 }
203 }
204
205 return (0);
206}
| 134 sbuf_printf(sb, " %s", "-kse- ");
135 else {
136 tdfirst = FIRST_THREAD_IN_PROC(p); /* XXX diff from td? */
137 sbuf_printf(sb, " %s",
138 (tdfirst->td_wchan && tdfirst->td_wmesg) ?
139 tdfirst->td_wmesg : "nochan");
140 }
141
142 cr = p->p_ucred;
143
144 sbuf_printf(sb, " %lu %lu %lu",
145 (u_long)cr->cr_uid,
146 (u_long)cr->cr_ruid,
147 (u_long)cr->cr_rgid);
148
149 /* egid (cr->cr_svgid) is equal to cr_ngroups[0]
150 see also getegid(2) in /sys/kern/kern_prot.c */
151
152 for (i = 0; i < cr->cr_ngroups; i++) {
153 sbuf_printf(sb, ",%lu", (u_long)cr->cr_groups[i]);
154 }
155
156 if (jailed(p->p_ucred)) {
157 mtx_lock(&p->p_ucred->cr_prison->pr_mtx);
158 sbuf_printf(sb, " %s", p->p_ucred->cr_prison->pr_host);
159 mtx_unlock(&p->p_ucred->cr_prison->pr_mtx);
160 } else {
161 sbuf_printf(sb, " -");
162 }
163 PROC_UNLOCK(p);
164 sbuf_printf(sb, "\n");
165
166 return (0);
167}
168
169int
170procfs_doproccmdline(PFS_FILL_ARGS)
171{
172 struct ps_strings pstr;
173 int error, i;
174
175 /*
176 * If we are using the ps/cmdline caching, use that. Otherwise
177 * revert back to the old way which only implements full cmdline
178 * for the currept process and just p->p_comm for all other
179 * processes.
180 * Note that if the argv is no longer available, we deliberately
181 * don't fall back on p->p_comm or return an error: the authentic
182 * Linux behaviour is to return zero-length in this case.
183 */
184
185 PROC_LOCK(p);
186 if (p->p_args && (ps_argsopen || !p_cansee(td, p))) {
187 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length);
188 PROC_UNLOCK(p);
189 return (0);
190 }
191 PROC_UNLOCK(p);
192 if (p != td->td_proc) {
193 sbuf_printf(sb, "%.*s", MAXCOMLEN, p->p_comm);
194 } else {
195 error = copyin((void *)p->p_sysent->sv_psstrings, &pstr,
196 sizeof(pstr));
197 if (error)
198 return (error);
199 for (i = 0; i < pstr.ps_nargvstr; i++) {
200 sbuf_copyin(sb, pstr.ps_argvstr[i], 0);
201 sbuf_printf(sb, "%c", '\0');
202 }
203 }
204
205 return (0);
206}
|