resource.c revision 9fd4f96d2a2527ac7ca90c156bfc11ce10118684 
1/*
2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "defs.h"
32#include <sys/resource.h>
33#include <sys/times.h>
34#include <linux/kernel.h>
35
36static const struct xlat resources[] = {
37#ifdef RLIMIT_AS
38	{ RLIMIT_AS,		"RLIMIT_AS"		},
39#endif
40#ifdef RLIMIT_CORE
41	{ RLIMIT_CORE,		"RLIMIT_CORE"		},
42#endif
43#ifdef RLIMIT_CPU
44	{ RLIMIT_CPU,		"RLIMIT_CPU"		},
45#endif
46#ifdef RLIMIT_DATA
47	{ RLIMIT_DATA,		"RLIMIT_DATA"		},
48#endif
49#ifdef RLIMIT_FSIZE
50	{ RLIMIT_FSIZE,		"RLIMIT_FSIZE"		},
51#endif
52#ifdef RLIMIT_LOCKS
53	{ RLIMIT_LOCKS,		"RLIMIT_LOCKS"		},
54#endif
55#ifdef RLIMIT_MEMLOCK
56	{ RLIMIT_MEMLOCK,	"RLIMIT_MEMLOCK"	},
57#endif
58#ifdef RLIMIT_MSGQUEUE
59	{ RLIMIT_MSGQUEUE,	"RLIMIT_MSGQUEUE"	},
60#endif
61#ifdef RLIMIT_NICE
62	{ RLIMIT_NICE,		"RLIMIT_NICE"		},
63#endif
64#ifdef RLIMIT_NOFILE
65	{ RLIMIT_NOFILE,	"RLIMIT_NOFILE"		},
66#endif
67#ifdef RLIMIT_NPROC
68	{ RLIMIT_NPROC,		"RLIMIT_NPROC"		},
69#endif
70#ifdef RLIMIT_RSS
71	{ RLIMIT_RSS,		"RLIMIT_RSS"		},
72#endif
73#ifdef RLIMIT_RTPRIO
74	{ RLIMIT_RTPRIO,	"RLIMIT_RTPRIO"		},
75#endif
76#ifdef RLIMIT_RTTIME
77	{ RLIMIT_RTTIME,	"RLIMIT_RTTIME"		},
78#endif
79#ifdef RLIMIT_SIGPENDING
80	{ RLIMIT_SIGPENDING,	"RLIMIT_SIGPENDING"	},
81#endif
82#ifdef RLIMIT_STACK
83	{ RLIMIT_STACK,		"RLIMIT_STACK"		},
84#endif
85#ifdef RLIMIT_VMEM
86	{ RLIMIT_VMEM,		"RLIMIT_VMEM"		},
87#endif
88	{ 0,			NULL			}
89};
90
91#if !(SIZEOF_RLIM_T == 4 || SIZEOF_RLIM_T == 8)
92# error "Unsupported SIZEOF_RLIM_T value"
93#endif
94
95static const char *
96sprint_rlim64(uint64_t lim)
97{
98	static char buf[sizeof(uint64_t)*3 + sizeof("*1024")];
99
100	if (lim == UINT64_MAX)
101		return "RLIM64_INFINITY";
102
103	if (lim > 1024 && lim % 1024 == 0)
104		sprintf(buf, "%" PRIu64 "*1024", lim / 1024);
105	else
106		sprintf(buf, "%" PRIu64, lim);
107	return buf;
108}
109
110static void
111print_rlimit64(struct tcb *tcp, unsigned long addr)
112{
113	struct rlimit_64 {
114		uint64_t rlim_cur;
115		uint64_t rlim_max;
116	} rlim;
117
118	if (umove(tcp, addr, &rlim) < 0)
119		tprintf("%#lx", addr);
120	else {
121		tprintf("{rlim_cur=%s,", sprint_rlim64(rlim.rlim_cur));
122		tprintf(" rlim_max=%s}", sprint_rlim64(rlim.rlim_max));
123	}
124}
125
126static void
127decode_rlimit64(struct tcb *tcp, unsigned long addr)
128{
129	if (!addr)
130		tprints("NULL");
131	else if (!verbose(tcp) ||
132		 (exiting(tcp) && syserror(tcp)))
133		tprintf("%#lx", addr);
134	else
135		print_rlimit64(tcp, addr);
136}
137
138#if SIZEOF_RLIM_T == 4 || SUPPORTED_PERSONALITIES > 1
139
140static const char *
141sprint_rlim32(uint32_t lim)
142{
143	static char buf[sizeof(uint32_t)*3 + sizeof("*1024")];
144
145	if (lim == UINT32_MAX)
146		return "RLIM_INFINITY";
147
148	if (lim > 1024 && lim % 1024 == 0)
149		sprintf(buf, "%" PRIu32 "*1024", lim / 1024);
150	else
151		sprintf(buf, "%" PRIu32, lim);
152	return buf;
153}
154
155static void
156print_rlimit32(struct tcb *tcp, unsigned long addr)
157{
158	struct rlimit_32 {
159		uint32_t rlim_cur;
160		uint32_t rlim_max;
161	} rlim;
162
163	if (umove(tcp, addr, &rlim) < 0)
164		tprintf("%#lx", addr);
165	else {
166		tprintf("{rlim_cur=%s,", sprint_rlim32(rlim.rlim_cur));
167		tprintf(" rlim_max=%s}", sprint_rlim32(rlim.rlim_max));
168	}
169}
170
171static void
172decode_rlimit(struct tcb *tcp, unsigned long addr)
173{
174	if (!addr)
175		tprints("NULL");
176	else if (!verbose(tcp) ||
177		 (exiting(tcp) && syserror(tcp)))
178		tprintf("%#lx", addr);
179	else {
180# if SIZEOF_RLIM_T == 4
181		print_rlimit32(tcp, addr);
182# else
183		if (current_wordsize == 4)
184			print_rlimit32(tcp, addr);
185		else
186			print_rlimit64(tcp, addr);
187# endif
188	}
189}
190
191#else /* SIZEOF_RLIM_T == 8 && SUPPORTED_PERSONALITIES == 1 */
192
193# define decode_rlimit decode_rlimit64
194
195#endif /* SIZEOF_RLIM_T == 4 || SUPPORTED_PERSONALITIES > 1 */
196
197int
198sys_getrlimit(struct tcb *tcp)
199{
200	if (entering(tcp)) {
201		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
202		tprints(", ");
203	}
204	else {
205		decode_rlimit(tcp, tcp->u_arg[1]);
206	}
207	return 0;
208}
209
210int
211sys_setrlimit(struct tcb *tcp)
212{
213	if (entering(tcp)) {
214		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
215		tprints(", ");
216		decode_rlimit(tcp, tcp->u_arg[1]);
217	}
218	return 0;
219}
220
221int
222sys_prlimit64(struct tcb *tcp)
223{
224	if (entering(tcp)) {
225		tprintf("%ld, ", tcp->u_arg[0]);
226		printxval(resources, tcp->u_arg[1], "RLIMIT_???");
227		tprints(", ");
228		decode_rlimit64(tcp, tcp->u_arg[2]);
229		tprints(", ");
230	} else {
231		decode_rlimit64(tcp, tcp->u_arg[3]);
232	}
233	return 0;
234}
235
236static const struct xlat usagewho[] = {
237	{ RUSAGE_SELF,		"RUSAGE_SELF"		},
238	{ RUSAGE_CHILDREN,	"RUSAGE_CHILDREN"	},
239#ifdef RUSAGE_BOTH
240	{ RUSAGE_BOTH,		"RUSAGE_BOTH"		},
241#endif
242	{ 0,			NULL			},
243};
244
245#ifdef ALPHA
246void
247printrusage32(struct tcb *tcp, long addr)
248{
249	struct timeval32 {
250		unsigned tv_sec;
251		unsigned tv_usec;
252	};
253	struct rusage32 {
254		struct timeval32 ru_utime;	/* user time used */
255		struct timeval32 ru_stime;	/* system time used */
256		long	ru_maxrss;		/* maximum resident set size */
257		long	ru_ixrss;		/* integral shared memory size */
258		long	ru_idrss;		/* integral unshared data size */
259		long	ru_isrss;		/* integral unshared stack size */
260		long	ru_minflt;		/* page reclaims */
261		long	ru_majflt;		/* page faults */
262		long	ru_nswap;		/* swaps */
263		long	ru_inblock;		/* block input operations */
264		long	ru_oublock;		/* block output operations */
265		long	ru_msgsnd;		/* messages sent */
266		long	ru_msgrcv;		/* messages received */
267		long	ru_nsignals;		/* signals received */
268		long	ru_nvcsw;		/* voluntary context switches */
269		long	ru_nivcsw;		/* involuntary " */
270	} ru;
271
272	if (!addr)
273		tprints("NULL");
274	else if (syserror(tcp) || !verbose(tcp))
275		tprintf("%#lx", addr);
276	else if (umove(tcp, addr, &ru) < 0)
277		tprints("{...}");
278	else if (!abbrev(tcp)) {
279		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
280			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
281			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
282		tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
283			ru.ru_maxrss, ru.ru_ixrss);
284		tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
285			ru.ru_idrss, ru.ru_isrss);
286		tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
287			ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
288		tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
289			ru.ru_inblock, ru.ru_oublock);
290		tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
291			ru.ru_msgsnd, ru.ru_msgrcv);
292		tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
293			ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
294	}
295	else {
296		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
297			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
298			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
299	}
300}
301#endif
302
303void
304printrusage(struct tcb *tcp, long addr)
305{
306	struct rusage ru;
307
308	if (!addr)
309		tprints("NULL");
310	else if (syserror(tcp) || !verbose(tcp))
311		tprintf("%#lx", addr);
312	else if (umove(tcp, addr, &ru) < 0)
313		tprints("{...}");
314	else if (!abbrev(tcp)) {
315		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
316			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
317			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
318		tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
319			ru.ru_maxrss, ru.ru_ixrss);
320		tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
321			ru.ru_idrss, ru.ru_isrss);
322		tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
323			ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
324		tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
325			ru.ru_inblock, ru.ru_oublock);
326		tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
327			ru.ru_msgsnd, ru.ru_msgrcv);
328		tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
329			ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
330	}
331	else {
332		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
333			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
334			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
335	}
336}
337
338int
339sys_getrusage(struct tcb *tcp)
340{
341	if (entering(tcp)) {
342		printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
343		tprints(", ");
344	}
345	else
346		printrusage(tcp, tcp->u_arg[1]);
347	return 0;
348}
349
350#ifdef ALPHA
351int
352sys_osf_getrusage(struct tcb *tcp)
353{
354	if (entering(tcp)) {
355		printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
356		tprints(", ");
357	}
358	else
359		printrusage32(tcp, tcp->u_arg[1]);
360	return 0;
361}
362#endif /* ALPHA */
363
364int
365sys_sysinfo(struct tcb *tcp)
366{
367	struct sysinfo si;
368
369	if (exiting(tcp)) {
370		if (syserror(tcp) || !verbose(tcp))
371			tprintf("%#lx", tcp->u_arg[0]);
372		else if (umove(tcp, tcp->u_arg[0], &si) < 0)
373			tprints("{...}");
374		else {
375			tprintf("{uptime=%lu, loads=[%lu, %lu, %lu] ",
376				(long) si.uptime, (long) si.loads[0],
377				(long) si.loads[1], (long) si.loads[2]);
378			tprintf("totalram=%lu, freeram=%lu, ",
379				(long) si.totalram, (long) si.freeram);
380			tprintf("sharedram=%lu, bufferram=%lu} ",
381				(long) si.sharedram, (long) si.bufferram);
382			tprintf("totalswap=%lu, freeswap=%lu, procs=%hu}",
383				(long) si.totalswap, (long) si.freeswap,
384				si.procs);
385		}
386	}
387	return 0;
388}
389
390static const struct xlat priorities[] = {
391	{ PRIO_PROCESS,	"PRIO_PROCESS"	},
392	{ PRIO_PGRP,	"PRIO_PGRP"	},
393	{ PRIO_USER,	"PRIO_USER"	},
394	{ 0,		NULL		},
395};
396
397int
398sys_getpriority(struct tcb *tcp)
399{
400	if (entering(tcp)) {
401		printxval(priorities, tcp->u_arg[0], "PRIO_???");
402		tprintf(", %lu", tcp->u_arg[1]);
403	}
404	return 0;
405}
406
407int
408sys_setpriority(struct tcb *tcp)
409{
410	if (entering(tcp)) {
411		printxval(priorities, tcp->u_arg[0], "PRIO_???");
412		tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
413	}
414	return 0;
415}
416
417int
418sys_times(struct tcb *tcp)
419{
420	struct tms tbuf;
421
422	if (exiting(tcp)) {
423		if (tcp->u_arg[0] == 0)
424			tprints("NULL");
425		else if (syserror(tcp))
426			tprintf("%#lx", tcp->u_arg[0]);
427		else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
428			tprints("{...}");
429		else {
430			tprintf("{tms_utime=%lu, tms_stime=%lu, ",
431				tbuf.tms_utime, tbuf.tms_stime);
432			tprintf("tms_cutime=%lu, tms_cstime=%lu}",
433				tbuf.tms_cutime, tbuf.tms_cstime);
434		}
435	}
436	return 0;
437}
438