1/*-
2 * Copyright (c) 2002 Doug Rabson
3 * Copyright (c) 1994-1995 S�ren Schmidt
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer
11 * in this position and unchanged.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2002 Doug Rabson
3 * Copyright (c) 1994-1995 S�ren Schmidt
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer
11 * in this position and unchanged.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
|
31__FBSDID("$FreeBSD: head/sys/compat/linux/linux_misc.c 218030 2011-01-28 18:47:07Z dchagin $");
| 31__FBSDID("$FreeBSD: head/sys/compat/linux/linux_misc.c 218031 2011-01-28 19:04:15Z dchagin $");
|
32
33#include "opt_compat.h"
34
35#include <sys/param.h>
36#include <sys/blist.h>
37#include <sys/fcntl.h>
38#if defined(__i386__)
39#include <sys/imgact_aout.h>
40#endif
41#include <sys/jail.h>
42#include <sys/kernel.h>
43#include <sys/limits.h>
44#include <sys/lock.h>
45#include <sys/malloc.h>
46#include <sys/mman.h>
47#include <sys/mount.h>
48#include <sys/mutex.h>
49#include <sys/namei.h>
50#include <sys/priv.h>
51#include <sys/proc.h>
52#include <sys/reboot.h>
53#include <sys/resourcevar.h>
54#include <sys/sched.h>
55#include <sys/signalvar.h>
56#include <sys/stat.h>
57#include <sys/syscallsubr.h>
58#include <sys/sysctl.h>
59#include <sys/sysproto.h>
60#include <sys/systm.h>
61#include <sys/time.h>
62#include <sys/vmmeter.h>
63#include <sys/vnode.h>
64#include <sys/wait.h>
65#include <sys/cpuset.h>
66
67#include <security/mac/mac_framework.h>
68
69#include <vm/vm.h>
70#include <vm/pmap.h>
71#include <vm/vm_kern.h>
72#include <vm/vm_map.h>
73#include <vm/vm_extern.h>
74#include <vm/vm_object.h>
75#include <vm/swap_pager.h>
76
77#ifdef COMPAT_LINUX32
78#include <machine/../linux32/linux.h>
79#include <machine/../linux32/linux32_proto.h>
80#else
81#include <machine/../linux/linux.h>
82#include <machine/../linux/linux_proto.h>
83#endif
84
85#include <compat/linux/linux_file.h>
86#include <compat/linux/linux_mib.h>
87#include <compat/linux/linux_signal.h>
88#include <compat/linux/linux_util.h>
89#include <compat/linux/linux_sysproto.h>
90#include <compat/linux/linux_emul.h>
91#include <compat/linux/linux_misc.h>
92
93int stclohz; /* Statistics clock frequency */
94
95#define BSD_TO_LINUX_SIGNAL(sig) \
96 (((sig) <= LINUX_SIGTBLSZ) ? bsd_to_linux_signal[_SIG_IDX(sig)] : sig)
97
98static unsigned int linux_to_bsd_resource[LINUX_RLIM_NLIMITS] = {
99 RLIMIT_CPU, RLIMIT_FSIZE, RLIMIT_DATA, RLIMIT_STACK,
100 RLIMIT_CORE, RLIMIT_RSS, RLIMIT_NPROC, RLIMIT_NOFILE,
101 RLIMIT_MEMLOCK, RLIMIT_AS
102};
103
104struct l_sysinfo {
105 l_long uptime; /* Seconds since boot */
106 l_ulong loads[3]; /* 1, 5, and 15 minute load averages */
107#define LINUX_SYSINFO_LOADS_SCALE 65536
108 l_ulong totalram; /* Total usable main memory size */
109 l_ulong freeram; /* Available memory size */
110 l_ulong sharedram; /* Amount of shared memory */
111 l_ulong bufferram; /* Memory used by buffers */
112 l_ulong totalswap; /* Total swap space size */
113 l_ulong freeswap; /* swap space still available */
114 l_ushort procs; /* Number of current processes */
115 l_ushort pads;
116 l_ulong totalbig;
117 l_ulong freebig;
118 l_uint mem_unit;
119 char _f[20-2*sizeof(l_long)-sizeof(l_int)]; /* padding */
120};
121int
122linux_sysinfo(struct thread *td, struct linux_sysinfo_args *args)
123{
124 struct l_sysinfo sysinfo;
125 vm_object_t object;
126 int i, j;
127 struct timespec ts;
128
129 getnanouptime(&ts);
130 if (ts.tv_nsec != 0)
131 ts.tv_sec++;
132 sysinfo.uptime = ts.tv_sec;
133
134 /* Use the information from the mib to get our load averages */
135 for (i = 0; i < 3; i++)
136 sysinfo.loads[i] = averunnable.ldavg[i] *
137 LINUX_SYSINFO_LOADS_SCALE / averunnable.fscale;
138
139 sysinfo.totalram = physmem * PAGE_SIZE;
140 sysinfo.freeram = sysinfo.totalram - cnt.v_wire_count * PAGE_SIZE;
141
142 sysinfo.sharedram = 0;
143 mtx_lock(&vm_object_list_mtx);
144 TAILQ_FOREACH(object, &vm_object_list, object_list)
145 if (object->shadow_count > 1)
146 sysinfo.sharedram += object->resident_page_count;
147 mtx_unlock(&vm_object_list_mtx);
148
149 sysinfo.sharedram *= PAGE_SIZE;
150 sysinfo.bufferram = 0;
151
152 swap_pager_status(&i, &j);
153 sysinfo.totalswap = i * PAGE_SIZE;
154 sysinfo.freeswap = (i - j) * PAGE_SIZE;
155
156 sysinfo.procs = nprocs;
157
158 /* The following are only present in newer Linux kernels. */
159 sysinfo.totalbig = 0;
160 sysinfo.freebig = 0;
161 sysinfo.mem_unit = 1;
162
| 32
33#include "opt_compat.h"
34
35#include <sys/param.h>
36#include <sys/blist.h>
37#include <sys/fcntl.h>
38#if defined(__i386__)
39#include <sys/imgact_aout.h>
40#endif
41#include <sys/jail.h>
42#include <sys/kernel.h>
43#include <sys/limits.h>
44#include <sys/lock.h>
45#include <sys/malloc.h>
46#include <sys/mman.h>
47#include <sys/mount.h>
48#include <sys/mutex.h>
49#include <sys/namei.h>
50#include <sys/priv.h>
51#include <sys/proc.h>
52#include <sys/reboot.h>
53#include <sys/resourcevar.h>
54#include <sys/sched.h>
55#include <sys/signalvar.h>
56#include <sys/stat.h>
57#include <sys/syscallsubr.h>
58#include <sys/sysctl.h>
59#include <sys/sysproto.h>
60#include <sys/systm.h>
61#include <sys/time.h>
62#include <sys/vmmeter.h>
63#include <sys/vnode.h>
64#include <sys/wait.h>
65#include <sys/cpuset.h>
66
67#include <security/mac/mac_framework.h>
68
69#include <vm/vm.h>
70#include <vm/pmap.h>
71#include <vm/vm_kern.h>
72#include <vm/vm_map.h>
73#include <vm/vm_extern.h>
74#include <vm/vm_object.h>
75#include <vm/swap_pager.h>
76
77#ifdef COMPAT_LINUX32
78#include <machine/../linux32/linux.h>
79#include <machine/../linux32/linux32_proto.h>
80#else
81#include <machine/../linux/linux.h>
82#include <machine/../linux/linux_proto.h>
83#endif
84
85#include <compat/linux/linux_file.h>
86#include <compat/linux/linux_mib.h>
87#include <compat/linux/linux_signal.h>
88#include <compat/linux/linux_util.h>
89#include <compat/linux/linux_sysproto.h>
90#include <compat/linux/linux_emul.h>
91#include <compat/linux/linux_misc.h>
92
93int stclohz; /* Statistics clock frequency */
94
95#define BSD_TO_LINUX_SIGNAL(sig) \
96 (((sig) <= LINUX_SIGTBLSZ) ? bsd_to_linux_signal[_SIG_IDX(sig)] : sig)
97
98static unsigned int linux_to_bsd_resource[LINUX_RLIM_NLIMITS] = {
99 RLIMIT_CPU, RLIMIT_FSIZE, RLIMIT_DATA, RLIMIT_STACK,
100 RLIMIT_CORE, RLIMIT_RSS, RLIMIT_NPROC, RLIMIT_NOFILE,
101 RLIMIT_MEMLOCK, RLIMIT_AS
102};
103
104struct l_sysinfo {
105 l_long uptime; /* Seconds since boot */
106 l_ulong loads[3]; /* 1, 5, and 15 minute load averages */
107#define LINUX_SYSINFO_LOADS_SCALE 65536
108 l_ulong totalram; /* Total usable main memory size */
109 l_ulong freeram; /* Available memory size */
110 l_ulong sharedram; /* Amount of shared memory */
111 l_ulong bufferram; /* Memory used by buffers */
112 l_ulong totalswap; /* Total swap space size */
113 l_ulong freeswap; /* swap space still available */
114 l_ushort procs; /* Number of current processes */
115 l_ushort pads;
116 l_ulong totalbig;
117 l_ulong freebig;
118 l_uint mem_unit;
119 char _f[20-2*sizeof(l_long)-sizeof(l_int)]; /* padding */
120};
121int
122linux_sysinfo(struct thread *td, struct linux_sysinfo_args *args)
123{
124 struct l_sysinfo sysinfo;
125 vm_object_t object;
126 int i, j;
127 struct timespec ts;
128
129 getnanouptime(&ts);
130 if (ts.tv_nsec != 0)
131 ts.tv_sec++;
132 sysinfo.uptime = ts.tv_sec;
133
134 /* Use the information from the mib to get our load averages */
135 for (i = 0; i < 3; i++)
136 sysinfo.loads[i] = averunnable.ldavg[i] *
137 LINUX_SYSINFO_LOADS_SCALE / averunnable.fscale;
138
139 sysinfo.totalram = physmem * PAGE_SIZE;
140 sysinfo.freeram = sysinfo.totalram - cnt.v_wire_count * PAGE_SIZE;
141
142 sysinfo.sharedram = 0;
143 mtx_lock(&vm_object_list_mtx);
144 TAILQ_FOREACH(object, &vm_object_list, object_list)
145 if (object->shadow_count > 1)
146 sysinfo.sharedram += object->resident_page_count;
147 mtx_unlock(&vm_object_list_mtx);
148
149 sysinfo.sharedram *= PAGE_SIZE;
150 sysinfo.bufferram = 0;
151
152 swap_pager_status(&i, &j);
153 sysinfo.totalswap = i * PAGE_SIZE;
154 sysinfo.freeswap = (i - j) * PAGE_SIZE;
155
156 sysinfo.procs = nprocs;
157
158 /* The following are only present in newer Linux kernels. */
159 sysinfo.totalbig = 0;
160 sysinfo.freebig = 0;
161 sysinfo.mem_unit = 1;
162
|
163 return copyout(&sysinfo, args->info, sizeof(sysinfo));
| 163 return (copyout(&sysinfo, args->info, sizeof(sysinfo)));
|
164}
165
166int
167linux_alarm(struct thread *td, struct linux_alarm_args *args)
168{
169 struct itimerval it, old_it;
170 u_int secs;
171 int error;
172
173#ifdef DEBUG
174 if (ldebug(alarm))
175 printf(ARGS(alarm, "%u"), args->secs);
176#endif
177
178 secs = args->secs;
179
180 if (secs > INT_MAX)
181 secs = INT_MAX;
182
183 it.it_value.tv_sec = (long) secs;
184 it.it_value.tv_usec = 0;
185 it.it_interval.tv_sec = 0;
186 it.it_interval.tv_usec = 0;
187 error = kern_setitimer(td, ITIMER_REAL, &it, &old_it);
188 if (error)
189 return (error);
190 if (timevalisset(&old_it.it_value)) {
191 if (old_it.it_value.tv_usec != 0)
192 old_it.it_value.tv_sec++;
193 td->td_retval[0] = old_it.it_value.tv_sec;
194 }
195 return (0);
196}
197
198int
199linux_brk(struct thread *td, struct linux_brk_args *args)
200{
201 struct vmspace *vm = td->td_proc->p_vmspace;
202 vm_offset_t new, old;
203 struct obreak_args /* {
204 char * nsize;
205 } */ tmp;
206
207#ifdef DEBUG
208 if (ldebug(brk))
209 printf(ARGS(brk, "%p"), (void *)(uintptr_t)args->dsend);
210#endif
211 old = (vm_offset_t)vm->vm_daddr + ctob(vm->vm_dsize);
212 new = (vm_offset_t)args->dsend;
213 tmp.nsize = (char *)new;
214 if (((caddr_t)new > vm->vm_daddr) && !obreak(td, &tmp))
215 td->td_retval[0] = (long)new;
216 else
217 td->td_retval[0] = (long)old;
218
| 164}
165
166int
167linux_alarm(struct thread *td, struct linux_alarm_args *args)
168{
169 struct itimerval it, old_it;
170 u_int secs;
171 int error;
172
173#ifdef DEBUG
174 if (ldebug(alarm))
175 printf(ARGS(alarm, "%u"), args->secs);
176#endif
177
178 secs = args->secs;
179
180 if (secs > INT_MAX)
181 secs = INT_MAX;
182
183 it.it_value.tv_sec = (long) secs;
184 it.it_value.tv_usec = 0;
185 it.it_interval.tv_sec = 0;
186 it.it_interval.tv_usec = 0;
187 error = kern_setitimer(td, ITIMER_REAL, &it, &old_it);
188 if (error)
189 return (error);
190 if (timevalisset(&old_it.it_value)) {
191 if (old_it.it_value.tv_usec != 0)
192 old_it.it_value.tv_sec++;
193 td->td_retval[0] = old_it.it_value.tv_sec;
194 }
195 return (0);
196}
197
198int
199linux_brk(struct thread *td, struct linux_brk_args *args)
200{
201 struct vmspace *vm = td->td_proc->p_vmspace;
202 vm_offset_t new, old;
203 struct obreak_args /* {
204 char * nsize;
205 } */ tmp;
206
207#ifdef DEBUG
208 if (ldebug(brk))
209 printf(ARGS(brk, "%p"), (void *)(uintptr_t)args->dsend);
210#endif
211 old = (vm_offset_t)vm->vm_daddr + ctob(vm->vm_dsize);
212 new = (vm_offset_t)args->dsend;
213 tmp.nsize = (char *)new;
214 if (((caddr_t)new > vm->vm_daddr) && !obreak(td, &tmp))
215 td->td_retval[0] = (long)new;
216 else
217 td->td_retval[0] = (long)old;
218
|
219 return 0;
| 219 return (0);
|
220}
221
222#if defined(__i386__)
223/* XXX: what about amd64/linux32? */
224
225int
226linux_uselib(struct thread *td, struct linux_uselib_args *args)
227{
228 struct nameidata ni;
229 struct vnode *vp;
230 struct exec *a_out;
231 struct vattr attr;
232 vm_offset_t vmaddr;
233 unsigned long file_offset;
234 vm_offset_t buffer;
235 unsigned long bss_size;
236 char *library;
237 int error;
238 int locked, vfslocked;
239
240 LCONVPATHEXIST(td, args->library, &library);
241
242#ifdef DEBUG
243 if (ldebug(uselib))
244 printf(ARGS(uselib, "%s"), library);
245#endif
246
247 a_out = NULL;
248 vfslocked = 0;
249 locked = 0;
250 vp = NULL;
251
252 NDINIT(&ni, LOOKUP, ISOPEN | FOLLOW | LOCKLEAF | MPSAFE | AUDITVNODE1,
253 UIO_SYSSPACE, library, td);
254 error = namei(&ni);
255 LFREEPATH(library);
256 if (error)
257 goto cleanup;
258
259 vp = ni.ni_vp;
260 vfslocked = NDHASGIANT(&ni);
261 NDFREE(&ni, NDF_ONLY_PNBUF);
262
263 /*
264 * From here on down, we have a locked vnode that must be unlocked.
265 * XXX: The code below largely duplicates exec_check_permissions().
266 */
267 locked = 1;
268
269 /* Writable? */
270 if (vp->v_writecount) {
271 error = ETXTBSY;
272 goto cleanup;
273 }
274
275 /* Executable? */
276 error = VOP_GETATTR(vp, &attr, td->td_ucred);
277 if (error)
278 goto cleanup;
279
280 if ((vp->v_mount->mnt_flag & MNT_NOEXEC) ||
281 ((attr.va_mode & 0111) == 0) || (attr.va_type != VREG)) {
282 /* EACCESS is what exec(2) returns. */
283 error = ENOEXEC;
284 goto cleanup;
285 }
286
287 /* Sensible size? */
288 if (attr.va_size == 0) {
289 error = ENOEXEC;
290 goto cleanup;
291 }
292
293 /* Can we access it? */
294 error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td);
295 if (error)
296 goto cleanup;
297
298 /*
299 * XXX: This should use vn_open() so that it is properly authorized,
300 * and to reduce code redundancy all over the place here.
301 * XXX: Not really, it duplicates far more of exec_check_permissions()
302 * than vn_open().
303 */
304#ifdef MAC
305 error = mac_vnode_check_open(td->td_ucred, vp, VREAD);
306 if (error)
307 goto cleanup;
308#endif
309 error = VOP_OPEN(vp, FREAD, td->td_ucred, td, NULL);
310 if (error)
311 goto cleanup;
312
313 /* Pull in executable header into kernel_map */
314 error = vm_mmap(kernel_map, (vm_offset_t *)&a_out, PAGE_SIZE,
315 VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp, 0);
316 if (error)
317 goto cleanup;
318
319 /* Is it a Linux binary ? */
320 if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
321 error = ENOEXEC;
322 goto cleanup;
323 }
324
325 /*
326 * While we are here, we should REALLY do some more checks
327 */
328
329 /* Set file/virtual offset based on a.out variant. */
330 switch ((int)(a_out->a_magic & 0xffff)) {
331 case 0413: /* ZMAGIC */
332 file_offset = 1024;
333 break;
334 case 0314: /* QMAGIC */
335 file_offset = 0;
336 break;
337 default:
338 error = ENOEXEC;
339 goto cleanup;
340 }
341
342 bss_size = round_page(a_out->a_bss);
343
344 /* Check various fields in header for validity/bounds. */
345 if (a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK) {
346 error = ENOEXEC;
347 goto cleanup;
348 }
349
350 /* text + data can't exceed file size */
351 if (a_out->a_data + a_out->a_text > attr.va_size) {
352 error = EFAULT;
353 goto cleanup;
354 }
355
356 /*
357 * text/data/bss must not exceed limits
358 * XXX - this is not complete. it should check current usage PLUS
359 * the resources needed by this library.
360 */
361 PROC_LOCK(td->td_proc);
362 if (a_out->a_text > maxtsiz ||
363 a_out->a_data + bss_size > lim_cur(td->td_proc, RLIMIT_DATA)) {
364 PROC_UNLOCK(td->td_proc);
365 error = ENOMEM;
366 goto cleanup;
367 }
368 PROC_UNLOCK(td->td_proc);
369
370 /*
371 * Prevent more writers.
372 * XXX: Note that if any of the VM operations fail below we don't
373 * clear this flag.
374 */
375 vp->v_vflag |= VV_TEXT;
376
377 /*
378 * Lock no longer needed
379 */
380 locked = 0;
381 VOP_UNLOCK(vp, 0);
382 VFS_UNLOCK_GIANT(vfslocked);
383
384 /*
385 * Check if file_offset page aligned. Currently we cannot handle
386 * misalinged file offsets, and so we read in the entire image
387 * (what a waste).
388 */
389 if (file_offset & PAGE_MASK) {
390#ifdef DEBUG
391 printf("uselib: Non page aligned binary %lu\n", file_offset);
392#endif
393 /* Map text+data read/write/execute */
394
395 /* a_entry is the load address and is page aligned */
396 vmaddr = trunc_page(a_out->a_entry);
397
398 /* get anon user mapping, read+write+execute */
399 error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
400 &vmaddr, a_out->a_text + a_out->a_data, FALSE, VM_PROT_ALL,
401 VM_PROT_ALL, 0);
402 if (error)
403 goto cleanup;
404
405 /* map file into kernel_map */
406 error = vm_mmap(kernel_map, &buffer,
407 round_page(a_out->a_text + a_out->a_data + file_offset),
408 VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp,
409 trunc_page(file_offset));
410 if (error)
411 goto cleanup;
412
413 /* copy from kernel VM space to user space */
414 error = copyout(PTRIN(buffer + file_offset),
415 (void *)vmaddr, a_out->a_text + a_out->a_data);
416
417 /* release temporary kernel space */
418 vm_map_remove(kernel_map, buffer, buffer +
419 round_page(a_out->a_text + a_out->a_data + file_offset));
420
421 if (error)
422 goto cleanup;
423 } else {
424#ifdef DEBUG
425 printf("uselib: Page aligned binary %lu\n", file_offset);
426#endif
427 /*
428 * for QMAGIC, a_entry is 20 bytes beyond the load address
429 * to skip the executable header
430 */
431 vmaddr = trunc_page(a_out->a_entry);
432
433 /*
434 * Map it all into the process's space as a single
435 * copy-on-write "data" segment.
436 */
437 error = vm_mmap(&td->td_proc->p_vmspace->vm_map, &vmaddr,
438 a_out->a_text + a_out->a_data, VM_PROT_ALL, VM_PROT_ALL,
439 MAP_PRIVATE | MAP_FIXED, OBJT_VNODE, vp, file_offset);
440 if (error)
441 goto cleanup;
442 }
443#ifdef DEBUG
444 printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long *)vmaddr)[0],
445 ((long *)vmaddr)[1]);
446#endif
447 if (bss_size != 0) {
448 /* Calculate BSS start address */
449 vmaddr = trunc_page(a_out->a_entry) + a_out->a_text +
450 a_out->a_data;
451
452 /* allocate some 'anon' space */
453 error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
454 &vmaddr, bss_size, FALSE, VM_PROT_ALL, VM_PROT_ALL, 0);
455 if (error)
456 goto cleanup;
457 }
458
459cleanup:
460 /* Unlock vnode if needed */
461 if (locked) {
462 VOP_UNLOCK(vp, 0);
463 VFS_UNLOCK_GIANT(vfslocked);
464 }
465
466 /* Release the kernel mapping. */
467 if (a_out)
468 vm_map_remove(kernel_map, (vm_offset_t)a_out,
469 (vm_offset_t)a_out + PAGE_SIZE);
470
| 220}
221
222#if defined(__i386__)
223/* XXX: what about amd64/linux32? */
224
225int
226linux_uselib(struct thread *td, struct linux_uselib_args *args)
227{
228 struct nameidata ni;
229 struct vnode *vp;
230 struct exec *a_out;
231 struct vattr attr;
232 vm_offset_t vmaddr;
233 unsigned long file_offset;
234 vm_offset_t buffer;
235 unsigned long bss_size;
236 char *library;
237 int error;
238 int locked, vfslocked;
239
240 LCONVPATHEXIST(td, args->library, &library);
241
242#ifdef DEBUG
243 if (ldebug(uselib))
244 printf(ARGS(uselib, "%s"), library);
245#endif
246
247 a_out = NULL;
248 vfslocked = 0;
249 locked = 0;
250 vp = NULL;
251
252 NDINIT(&ni, LOOKUP, ISOPEN | FOLLOW | LOCKLEAF | MPSAFE | AUDITVNODE1,
253 UIO_SYSSPACE, library, td);
254 error = namei(&ni);
255 LFREEPATH(library);
256 if (error)
257 goto cleanup;
258
259 vp = ni.ni_vp;
260 vfslocked = NDHASGIANT(&ni);
261 NDFREE(&ni, NDF_ONLY_PNBUF);
262
263 /*
264 * From here on down, we have a locked vnode that must be unlocked.
265 * XXX: The code below largely duplicates exec_check_permissions().
266 */
267 locked = 1;
268
269 /* Writable? */
270 if (vp->v_writecount) {
271 error = ETXTBSY;
272 goto cleanup;
273 }
274
275 /* Executable? */
276 error = VOP_GETATTR(vp, &attr, td->td_ucred);
277 if (error)
278 goto cleanup;
279
280 if ((vp->v_mount->mnt_flag & MNT_NOEXEC) ||
281 ((attr.va_mode & 0111) == 0) || (attr.va_type != VREG)) {
282 /* EACCESS is what exec(2) returns. */
283 error = ENOEXEC;
284 goto cleanup;
285 }
286
287 /* Sensible size? */
288 if (attr.va_size == 0) {
289 error = ENOEXEC;
290 goto cleanup;
291 }
292
293 /* Can we access it? */
294 error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td);
295 if (error)
296 goto cleanup;
297
298 /*
299 * XXX: This should use vn_open() so that it is properly authorized,
300 * and to reduce code redundancy all over the place here.
301 * XXX: Not really, it duplicates far more of exec_check_permissions()
302 * than vn_open().
303 */
304#ifdef MAC
305 error = mac_vnode_check_open(td->td_ucred, vp, VREAD);
306 if (error)
307 goto cleanup;
308#endif
309 error = VOP_OPEN(vp, FREAD, td->td_ucred, td, NULL);
310 if (error)
311 goto cleanup;
312
313 /* Pull in executable header into kernel_map */
314 error = vm_mmap(kernel_map, (vm_offset_t *)&a_out, PAGE_SIZE,
315 VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp, 0);
316 if (error)
317 goto cleanup;
318
319 /* Is it a Linux binary ? */
320 if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
321 error = ENOEXEC;
322 goto cleanup;
323 }
324
325 /*
326 * While we are here, we should REALLY do some more checks
327 */
328
329 /* Set file/virtual offset based on a.out variant. */
330 switch ((int)(a_out->a_magic & 0xffff)) {
331 case 0413: /* ZMAGIC */
332 file_offset = 1024;
333 break;
334 case 0314: /* QMAGIC */
335 file_offset = 0;
336 break;
337 default:
338 error = ENOEXEC;
339 goto cleanup;
340 }
341
342 bss_size = round_page(a_out->a_bss);
343
344 /* Check various fields in header for validity/bounds. */
345 if (a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK) {
346 error = ENOEXEC;
347 goto cleanup;
348 }
349
350 /* text + data can't exceed file size */
351 if (a_out->a_data + a_out->a_text > attr.va_size) {
352 error = EFAULT;
353 goto cleanup;
354 }
355
356 /*
357 * text/data/bss must not exceed limits
358 * XXX - this is not complete. it should check current usage PLUS
359 * the resources needed by this library.
360 */
361 PROC_LOCK(td->td_proc);
362 if (a_out->a_text > maxtsiz ||
363 a_out->a_data + bss_size > lim_cur(td->td_proc, RLIMIT_DATA)) {
364 PROC_UNLOCK(td->td_proc);
365 error = ENOMEM;
366 goto cleanup;
367 }
368 PROC_UNLOCK(td->td_proc);
369
370 /*
371 * Prevent more writers.
372 * XXX: Note that if any of the VM operations fail below we don't
373 * clear this flag.
374 */
375 vp->v_vflag |= VV_TEXT;
376
377 /*
378 * Lock no longer needed
379 */
380 locked = 0;
381 VOP_UNLOCK(vp, 0);
382 VFS_UNLOCK_GIANT(vfslocked);
383
384 /*
385 * Check if file_offset page aligned. Currently we cannot handle
386 * misalinged file offsets, and so we read in the entire image
387 * (what a waste).
388 */
389 if (file_offset & PAGE_MASK) {
390#ifdef DEBUG
391 printf("uselib: Non page aligned binary %lu\n", file_offset);
392#endif
393 /* Map text+data read/write/execute */
394
395 /* a_entry is the load address and is page aligned */
396 vmaddr = trunc_page(a_out->a_entry);
397
398 /* get anon user mapping, read+write+execute */
399 error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
400 &vmaddr, a_out->a_text + a_out->a_data, FALSE, VM_PROT_ALL,
401 VM_PROT_ALL, 0);
402 if (error)
403 goto cleanup;
404
405 /* map file into kernel_map */
406 error = vm_mmap(kernel_map, &buffer,
407 round_page(a_out->a_text + a_out->a_data + file_offset),
408 VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp,
409 trunc_page(file_offset));
410 if (error)
411 goto cleanup;
412
413 /* copy from kernel VM space to user space */
414 error = copyout(PTRIN(buffer + file_offset),
415 (void *)vmaddr, a_out->a_text + a_out->a_data);
416
417 /* release temporary kernel space */
418 vm_map_remove(kernel_map, buffer, buffer +
419 round_page(a_out->a_text + a_out->a_data + file_offset));
420
421 if (error)
422 goto cleanup;
423 } else {
424#ifdef DEBUG
425 printf("uselib: Page aligned binary %lu\n", file_offset);
426#endif
427 /*
428 * for QMAGIC, a_entry is 20 bytes beyond the load address
429 * to skip the executable header
430 */
431 vmaddr = trunc_page(a_out->a_entry);
432
433 /*
434 * Map it all into the process's space as a single
435 * copy-on-write "data" segment.
436 */
437 error = vm_mmap(&td->td_proc->p_vmspace->vm_map, &vmaddr,
438 a_out->a_text + a_out->a_data, VM_PROT_ALL, VM_PROT_ALL,
439 MAP_PRIVATE | MAP_FIXED, OBJT_VNODE, vp, file_offset);
440 if (error)
441 goto cleanup;
442 }
443#ifdef DEBUG
444 printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long *)vmaddr)[0],
445 ((long *)vmaddr)[1]);
446#endif
447 if (bss_size != 0) {
448 /* Calculate BSS start address */
449 vmaddr = trunc_page(a_out->a_entry) + a_out->a_text +
450 a_out->a_data;
451
452 /* allocate some 'anon' space */
453 error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
454 &vmaddr, bss_size, FALSE, VM_PROT_ALL, VM_PROT_ALL, 0);
455 if (error)
456 goto cleanup;
457 }
458
459cleanup:
460 /* Unlock vnode if needed */
461 if (locked) {
462 VOP_UNLOCK(vp, 0);
463 VFS_UNLOCK_GIANT(vfslocked);
464 }
465
466 /* Release the kernel mapping. */
467 if (a_out)
468 vm_map_remove(kernel_map, (vm_offset_t)a_out,
469 (vm_offset_t)a_out + PAGE_SIZE);
470
|
471 return error;
| 471 return (error);
|
472}
473
474#endif /* __i386__ */
475
476int
477linux_select(struct thread *td, struct linux_select_args *args)
478{
479 l_timeval ltv;
480 struct timeval tv0, tv1, utv, *tvp;
481 int error;
482
483#ifdef DEBUG
484 if (ldebug(select))
485 printf(ARGS(select, "%d, %p, %p, %p, %p"), args->nfds,
486 (void *)args->readfds, (void *)args->writefds,
487 (void *)args->exceptfds, (void *)args->timeout);
488#endif
489
490 /*
491 * Store current time for computation of the amount of
492 * time left.
493 */
494 if (args->timeout) {
495 if ((error = copyin(args->timeout, <v, sizeof(ltv))))
496 goto select_out;
497 utv.tv_sec = ltv.tv_sec;
498 utv.tv_usec = ltv.tv_usec;
499#ifdef DEBUG
500 if (ldebug(select))
501 printf(LMSG("incoming timeout (%jd/%ld)"),
502 (intmax_t)utv.tv_sec, utv.tv_usec);
503#endif
504
505 if (itimerfix(&utv)) {
506 /*
507 * The timeval was invalid. Convert it to something
508 * valid that will act as it does under Linux.
509 */
510 utv.tv_sec += utv.tv_usec / 1000000;
511 utv.tv_usec %= 1000000;
512 if (utv.tv_usec < 0) {
513 utv.tv_sec -= 1;
514 utv.tv_usec += 1000000;
515 }
516 if (utv.tv_sec < 0)
517 timevalclear(&utv);
518 }
519 microtime(&tv0);
520 tvp = &utv;
521 } else
522 tvp = NULL;
523
524 error = kern_select(td, args->nfds, args->readfds, args->writefds,
525 args->exceptfds, tvp, sizeof(l_int) * 8);
526
527#ifdef DEBUG
528 if (ldebug(select))
529 printf(LMSG("real select returns %d"), error);
530#endif
531 if (error)
532 goto select_out;
533
534 if (args->timeout) {
535 if (td->td_retval[0]) {
536 /*
537 * Compute how much time was left of the timeout,
538 * by subtracting the current time and the time
539 * before we started the call, and subtracting
540 * that result from the user-supplied value.
541 */
542 microtime(&tv1);
543 timevalsub(&tv1, &tv0);
544 timevalsub(&utv, &tv1);
545 if (utv.tv_sec < 0)
546 timevalclear(&utv);
547 } else
548 timevalclear(&utv);
549#ifdef DEBUG
550 if (ldebug(select))
551 printf(LMSG("outgoing timeout (%jd/%ld)"),
552 (intmax_t)utv.tv_sec, utv.tv_usec);
553#endif
554 ltv.tv_sec = utv.tv_sec;
555 ltv.tv_usec = utv.tv_usec;
556 if ((error = copyout(<v, args->timeout, sizeof(ltv))))
557 goto select_out;
558 }
559
560select_out:
561#ifdef DEBUG
562 if (ldebug(select))
563 printf(LMSG("select_out -> %d"), error);
564#endif
| 472}
473
474#endif /* __i386__ */
475
476int
477linux_select(struct thread *td, struct linux_select_args *args)
478{
479 l_timeval ltv;
480 struct timeval tv0, tv1, utv, *tvp;
481 int error;
482
483#ifdef DEBUG
484 if (ldebug(select))
485 printf(ARGS(select, "%d, %p, %p, %p, %p"), args->nfds,
486 (void *)args->readfds, (void *)args->writefds,
487 (void *)args->exceptfds, (void *)args->timeout);
488#endif
489
490 /*
491 * Store current time for computation of the amount of
492 * time left.
493 */
494 if (args->timeout) {
495 if ((error = copyin(args->timeout, <v, sizeof(ltv))))
496 goto select_out;
497 utv.tv_sec = ltv.tv_sec;
498 utv.tv_usec = ltv.tv_usec;
499#ifdef DEBUG
500 if (ldebug(select))
501 printf(LMSG("incoming timeout (%jd/%ld)"),
502 (intmax_t)utv.tv_sec, utv.tv_usec);
503#endif
504
505 if (itimerfix(&utv)) {
506 /*
507 * The timeval was invalid. Convert it to something
508 * valid that will act as it does under Linux.
509 */
510 utv.tv_sec += utv.tv_usec / 1000000;
511 utv.tv_usec %= 1000000;
512 if (utv.tv_usec < 0) {
513 utv.tv_sec -= 1;
514 utv.tv_usec += 1000000;
515 }
516 if (utv.tv_sec < 0)
517 timevalclear(&utv);
518 }
519 microtime(&tv0);
520 tvp = &utv;
521 } else
522 tvp = NULL;
523
524 error = kern_select(td, args->nfds, args->readfds, args->writefds,
525 args->exceptfds, tvp, sizeof(l_int) * 8);
526
527#ifdef DEBUG
528 if (ldebug(select))
529 printf(LMSG("real select returns %d"), error);
530#endif
531 if (error)
532 goto select_out;
533
534 if (args->timeout) {
535 if (td->td_retval[0]) {
536 /*
537 * Compute how much time was left of the timeout,
538 * by subtracting the current time and the time
539 * before we started the call, and subtracting
540 * that result from the user-supplied value.
541 */
542 microtime(&tv1);
543 timevalsub(&tv1, &tv0);
544 timevalsub(&utv, &tv1);
545 if (utv.tv_sec < 0)
546 timevalclear(&utv);
547 } else
548 timevalclear(&utv);
549#ifdef DEBUG
550 if (ldebug(select))
551 printf(LMSG("outgoing timeout (%jd/%ld)"),
552 (intmax_t)utv.tv_sec, utv.tv_usec);
553#endif
554 ltv.tv_sec = utv.tv_sec;
555 ltv.tv_usec = utv.tv_usec;
556 if ((error = copyout(<v, args->timeout, sizeof(ltv))))
557 goto select_out;
558 }
559
560select_out:
561#ifdef DEBUG
562 if (ldebug(select))
563 printf(LMSG("select_out -> %d"), error);
564#endif
|
565 return error;
| 565 return (error);
|
566}
567
568int
569linux_mremap(struct thread *td, struct linux_mremap_args *args)
570{
571 struct munmap_args /* {
572 void *addr;
573 size_t len;
574 } */ bsd_args;
575 int error = 0;
576
577#ifdef DEBUG
578 if (ldebug(mremap))
579 printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx"),
580 (void *)(uintptr_t)args->addr,
581 (unsigned long)args->old_len,
582 (unsigned long)args->new_len,
583 (unsigned long)args->flags);
584#endif
585
586 if (args->flags & ~(LINUX_MREMAP_FIXED | LINUX_MREMAP_MAYMOVE)) {
587 td->td_retval[0] = 0;
588 return (EINVAL);
589 }
590
591 /*
592 * Check for the page alignment.
593 * Linux defines PAGE_MASK to be FreeBSD ~PAGE_MASK.
594 */
595 if (args->addr & PAGE_MASK) {
596 td->td_retval[0] = 0;
597 return (EINVAL);
598 }
599
600 args->new_len = round_page(args->new_len);
601 args->old_len = round_page(args->old_len);
602
603 if (args->new_len > args->old_len) {
604 td->td_retval[0] = 0;
| 566}
567
568int
569linux_mremap(struct thread *td, struct linux_mremap_args *args)
570{
571 struct munmap_args /* {
572 void *addr;
573 size_t len;
574 } */ bsd_args;
575 int error = 0;
576
577#ifdef DEBUG
578 if (ldebug(mremap))
579 printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx"),
580 (void *)(uintptr_t)args->addr,
581 (unsigned long)args->old_len,
582 (unsigned long)args->new_len,
583 (unsigned long)args->flags);
584#endif
585
586 if (args->flags & ~(LINUX_MREMAP_FIXED | LINUX_MREMAP_MAYMOVE)) {
587 td->td_retval[0] = 0;
588 return (EINVAL);
589 }
590
591 /*
592 * Check for the page alignment.
593 * Linux defines PAGE_MASK to be FreeBSD ~PAGE_MASK.
594 */
595 if (args->addr & PAGE_MASK) {
596 td->td_retval[0] = 0;
597 return (EINVAL);
598 }
599
600 args->new_len = round_page(args->new_len);
601 args->old_len = round_page(args->old_len);
602
603 if (args->new_len > args->old_len) {
604 td->td_retval[0] = 0;
|
605 return ENOMEM;
| 605 return (ENOMEM);
|
606 }
607
608 if (args->new_len < args->old_len) {
609 bsd_args.addr =
610 (caddr_t)((uintptr_t)args->addr + args->new_len);
611 bsd_args.len = args->old_len - args->new_len;
612 error = munmap(td, &bsd_args);
613 }
614
615 td->td_retval[0] = error ? 0 : (uintptr_t)args->addr;
| 606 }
607
608 if (args->new_len < args->old_len) {
609 bsd_args.addr =
610 (caddr_t)((uintptr_t)args->addr + args->new_len);
611 bsd_args.len = args->old_len - args->new_len;
612 error = munmap(td, &bsd_args);
613 }
614
615 td->td_retval[0] = error ? 0 : (uintptr_t)args->addr;
|
616 return error;
| 616 return (error);
|
617}
618
619#define LINUX_MS_ASYNC 0x0001
620#define LINUX_MS_INVALIDATE 0x0002
621#define LINUX_MS_SYNC 0x0004
622
623int
624linux_msync(struct thread *td, struct linux_msync_args *args)
625{
626 struct msync_args bsd_args;
627
628 bsd_args.addr = (caddr_t)(uintptr_t)args->addr;
629 bsd_args.len = (uintptr_t)args->len;
630 bsd_args.flags = args->fl & ~LINUX_MS_SYNC;
631
| 617}
618
619#define LINUX_MS_ASYNC 0x0001
620#define LINUX_MS_INVALIDATE 0x0002
621#define LINUX_MS_SYNC 0x0004
622
623int
624linux_msync(struct thread *td, struct linux_msync_args *args)
625{
626 struct msync_args bsd_args;
627
628 bsd_args.addr = (caddr_t)(uintptr_t)args->addr;
629 bsd_args.len = (uintptr_t)args->len;
630 bsd_args.flags = args->fl & ~LINUX_MS_SYNC;
631
|
632 return msync(td, &bsd_args);
| 632 return (msync(td, &bsd_args));
|
633}
634
635int
636linux_time(struct thread *td, struct linux_time_args *args)
637{
638 struct timeval tv;
639 l_time_t tm;
640 int error;
641
642#ifdef DEBUG
643 if (ldebug(time))
644 printf(ARGS(time, "*"));
645#endif
646
647 microtime(&tv);
648 tm = tv.tv_sec;
649 if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
| 633}
634
635int
636linux_time(struct thread *td, struct linux_time_args *args)
637{
638 struct timeval tv;
639 l_time_t tm;
640 int error;
641
642#ifdef DEBUG
643 if (ldebug(time))
644 printf(ARGS(time, "*"));
645#endif
646
647 microtime(&tv);
648 tm = tv.tv_sec;
649 if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
|
650 return error;
| 650 return (error);
|
651 td->td_retval[0] = tm;
| 651 td->td_retval[0] = tm;
|
652 return 0;
| 652 return (0);
|
653}
654
655struct l_times_argv {
656 l_clock_t tms_utime;
657 l_clock_t tms_stime;
658 l_clock_t tms_cutime;
659 l_clock_t tms_cstime;
660};
661
662
663/*
664 * Glibc versions prior to 2.2.1 always use hard-coded CLK_TCK value.
665 * Since 2.2.1 Glibc uses value exported from kernel via AT_CLKTCK
666 * auxiliary vector entry.
667 */
668#define CLK_TCK 100
669
670#define CONVOTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
671#define CONVNTCK(r) (r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz))
672
673#define CONVTCK(r) (linux_kernver(td) >= LINUX_KERNVER_2004000 ? \
674 CONVNTCK(r) : CONVOTCK(r))
675
676int
677linux_times(struct thread *td, struct linux_times_args *args)
678{
679 struct timeval tv, utime, stime, cutime, cstime;
680 struct l_times_argv tms;
681 struct proc *p;
682 int error;
683
684#ifdef DEBUG
685 if (ldebug(times))
686 printf(ARGS(times, "*"));
687#endif
688
689 if (args->buf != NULL) {
690 p = td->td_proc;
691 PROC_LOCK(p);
692 PROC_SLOCK(p);
693 calcru(p, &utime, &stime);
694 PROC_SUNLOCK(p);
695 calccru(p, &cutime, &cstime);
696 PROC_UNLOCK(p);
697
698 tms.tms_utime = CONVTCK(utime);
699 tms.tms_stime = CONVTCK(stime);
700
701 tms.tms_cutime = CONVTCK(cutime);
702 tms.tms_cstime = CONVTCK(cstime);
703
704 if ((error = copyout(&tms, args->buf, sizeof(tms))))
| 653}
654
655struct l_times_argv {
656 l_clock_t tms_utime;
657 l_clock_t tms_stime;
658 l_clock_t tms_cutime;
659 l_clock_t tms_cstime;
660};
661
662
663/*
664 * Glibc versions prior to 2.2.1 always use hard-coded CLK_TCK value.
665 * Since 2.2.1 Glibc uses value exported from kernel via AT_CLKTCK
666 * auxiliary vector entry.
667 */
668#define CLK_TCK 100
669
670#define CONVOTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
671#define CONVNTCK(r) (r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz))
672
673#define CONVTCK(r) (linux_kernver(td) >= LINUX_KERNVER_2004000 ? \
674 CONVNTCK(r) : CONVOTCK(r))
675
676int
677linux_times(struct thread *td, struct linux_times_args *args)
678{
679 struct timeval tv, utime, stime, cutime, cstime;
680 struct l_times_argv tms;
681 struct proc *p;
682 int error;
683
684#ifdef DEBUG
685 if (ldebug(times))
686 printf(ARGS(times, "*"));
687#endif
688
689 if (args->buf != NULL) {
690 p = td->td_proc;
691 PROC_LOCK(p);
692 PROC_SLOCK(p);
693 calcru(p, &utime, &stime);
694 PROC_SUNLOCK(p);
695 calccru(p, &cutime, &cstime);
696 PROC_UNLOCK(p);
697
698 tms.tms_utime = CONVTCK(utime);
699 tms.tms_stime = CONVTCK(stime);
700
701 tms.tms_cutime = CONVTCK(cutime);
702 tms.tms_cstime = CONVTCK(cstime);
703
704 if ((error = copyout(&tms, args->buf, sizeof(tms))))
|
705 return error;
| 705 return (error);
|
706 }
707
708 microuptime(&tv);
709 td->td_retval[0] = (int)CONVTCK(tv);
| 706 }
707
708 microuptime(&tv);
709 td->td_retval[0] = (int)CONVTCK(tv);
|
710 return 0;
| 710 return (0);
|
711}
712
713int
714linux_newuname(struct thread *td, struct linux_newuname_args *args)
715{
716 struct l_new_utsname utsname;
717 char osname[LINUX_MAX_UTSNAME];
718 char osrelease[LINUX_MAX_UTSNAME];
719 char *p;
720
721#ifdef DEBUG
722 if (ldebug(newuname))
723 printf(ARGS(newuname, "*"));
724#endif
725
726 linux_get_osname(td, osname);
727 linux_get_osrelease(td, osrelease);
728
729 bzero(&utsname, sizeof(utsname));
730 strlcpy(utsname.sysname, osname, LINUX_MAX_UTSNAME);
731 getcredhostname(td->td_ucred, utsname.nodename, LINUX_MAX_UTSNAME);
732 getcreddomainname(td->td_ucred, utsname.domainname, LINUX_MAX_UTSNAME);
733 strlcpy(utsname.release, osrelease, LINUX_MAX_UTSNAME);
734 strlcpy(utsname.version, version, LINUX_MAX_UTSNAME);
735 for (p = utsname.version; *p != '\0'; ++p)
736 if (*p == '\n') {
737 *p = '\0';
738 break;
739 }
740 strlcpy(utsname.machine, linux_platform, LINUX_MAX_UTSNAME);
741
742 return (copyout(&utsname, args->buf, sizeof(utsname)));
743}
744
745#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
746struct l_utimbuf {
747 l_time_t l_actime;
748 l_time_t l_modtime;
749};
750
751int
752linux_utime(struct thread *td, struct linux_utime_args *args)
753{
754 struct timeval tv[2], *tvp;
755 struct l_utimbuf lut;
756 char *fname;
757 int error;
758
759 LCONVPATHEXIST(td, args->fname, &fname);
760
761#ifdef DEBUG
762 if (ldebug(utime))
763 printf(ARGS(utime, "%s, *"), fname);
764#endif
765
766 if (args->times) {
767 if ((error = copyin(args->times, &lut, sizeof lut))) {
768 LFREEPATH(fname);
| 711}
712
713int
714linux_newuname(struct thread *td, struct linux_newuname_args *args)
715{
716 struct l_new_utsname utsname;
717 char osname[LINUX_MAX_UTSNAME];
718 char osrelease[LINUX_MAX_UTSNAME];
719 char *p;
720
721#ifdef DEBUG
722 if (ldebug(newuname))
723 printf(ARGS(newuname, "*"));
724#endif
725
726 linux_get_osname(td, osname);
727 linux_get_osrelease(td, osrelease);
728
729 bzero(&utsname, sizeof(utsname));
730 strlcpy(utsname.sysname, osname, LINUX_MAX_UTSNAME);
731 getcredhostname(td->td_ucred, utsname.nodename, LINUX_MAX_UTSNAME);
732 getcreddomainname(td->td_ucred, utsname.domainname, LINUX_MAX_UTSNAME);
733 strlcpy(utsname.release, osrelease, LINUX_MAX_UTSNAME);
734 strlcpy(utsname.version, version, LINUX_MAX_UTSNAME);
735 for (p = utsname.version; *p != '\0'; ++p)
736 if (*p == '\n') {
737 *p = '\0';
738 break;
739 }
740 strlcpy(utsname.machine, linux_platform, LINUX_MAX_UTSNAME);
741
742 return (copyout(&utsname, args->buf, sizeof(utsname)));
743}
744
745#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
746struct l_utimbuf {
747 l_time_t l_actime;
748 l_time_t l_modtime;
749};
750
751int
752linux_utime(struct thread *td, struct linux_utime_args *args)
753{
754 struct timeval tv[2], *tvp;
755 struct l_utimbuf lut;
756 char *fname;
757 int error;
758
759 LCONVPATHEXIST(td, args->fname, &fname);
760
761#ifdef DEBUG
762 if (ldebug(utime))
763 printf(ARGS(utime, "%s, *"), fname);
764#endif
765
766 if (args->times) {
767 if ((error = copyin(args->times, &lut, sizeof lut))) {
768 LFREEPATH(fname);
|
769 return error;
| 769 return (error);
|
770 }
771 tv[0].tv_sec = lut.l_actime;
772 tv[0].tv_usec = 0;
773 tv[1].tv_sec = lut.l_modtime;
774 tv[1].tv_usec = 0;
775 tvp = tv;
776 } else
777 tvp = NULL;
778
779 error = kern_utimes(td, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
780 LFREEPATH(fname);
781 return (error);
782}
783
784int
785linux_utimes(struct thread *td, struct linux_utimes_args *args)
786{
787 l_timeval ltv[2];
788 struct timeval tv[2], *tvp = NULL;
789 char *fname;
790 int error;
791
792 LCONVPATHEXIST(td, args->fname, &fname);
793
794#ifdef DEBUG
795 if (ldebug(utimes))
796 printf(ARGS(utimes, "%s, *"), fname);
797#endif
798
799 if (args->tptr != NULL) {
800 if ((error = copyin(args->tptr, ltv, sizeof ltv))) {
801 LFREEPATH(fname);
802 return (error);
803 }
804 tv[0].tv_sec = ltv[0].tv_sec;
805 tv[0].tv_usec = ltv[0].tv_usec;
806 tv[1].tv_sec = ltv[1].tv_sec;
807 tv[1].tv_usec = ltv[1].tv_usec;
808 tvp = tv;
809 }
810
811 error = kern_utimes(td, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
812 LFREEPATH(fname);
813 return (error);
814}
815
816int
817linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
818{
819 l_timeval ltv[2];
820 struct timeval tv[2], *tvp = NULL;
821 char *fname;
822 int error, dfd;
823
824 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
825 LCONVPATHEXIST_AT(td, args->filename, &fname, dfd);
826
827#ifdef DEBUG
828 if (ldebug(futimesat))
829 printf(ARGS(futimesat, "%s, *"), fname);
830#endif
831
832 if (args->utimes != NULL) {
833 if ((error = copyin(args->utimes, ltv, sizeof ltv))) {
834 LFREEPATH(fname);
835 return (error);
836 }
837 tv[0].tv_sec = ltv[0].tv_sec;
838 tv[0].tv_usec = ltv[0].tv_usec;
839 tv[1].tv_sec = ltv[1].tv_sec;
840 tv[1].tv_usec = ltv[1].tv_usec;
841 tvp = tv;
842 }
843
844 error = kern_utimesat(td, dfd, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
845 LFREEPATH(fname);
846 return (error);
847}
848#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
849
850int
851linux_common_wait(struct thread *td, int pid, int *status,
852 int options, struct rusage *ru)
853{
854 int error, tmpstat;
855
856 error = kern_wait(td, pid, &tmpstat, options, ru);
857 if (error)
858 return (error);
859
860 if (status) {
861 tmpstat &= 0xffff;
862 if (WIFSIGNALED(tmpstat))
863 tmpstat = (tmpstat & 0xffffff80) |
864 BSD_TO_LINUX_SIGNAL(WTERMSIG(tmpstat));
865 else if (WIFSTOPPED(tmpstat))
866 tmpstat = (tmpstat & 0xffff00ff) |
867 (BSD_TO_LINUX_SIGNAL(WSTOPSIG(tmpstat)) << 8);
868 error = copyout(&tmpstat, status, sizeof(int));
869 }
870
871 return (error);
872}
873
874int
875linux_waitpid(struct thread *td, struct linux_waitpid_args *args)
876{
877 int options;
878
879#ifdef DEBUG
880 if (ldebug(waitpid))
881 printf(ARGS(waitpid, "%d, %p, %d"),
882 args->pid, (void *)args->status, args->options);
883#endif
884 /*
885 * this is necessary because the test in kern_wait doesn't work
886 * because we mess with the options here
887 */
888 if (args->options & ~(WUNTRACED | WNOHANG | WCONTINUED | __WCLONE))
889 return (EINVAL);
890
891 options = (args->options & (WNOHANG | WUNTRACED));
892 /* WLINUXCLONE should be equal to __WCLONE, but we make sure */
893 if (args->options & __WCLONE)
894 options |= WLINUXCLONE;
895
896 return (linux_common_wait(td, args->pid, args->status, options, NULL));
897}
898
899
900int
901linux_mknod(struct thread *td, struct linux_mknod_args *args)
902{
903 char *path;
904 int error;
905
906 LCONVPATHCREAT(td, args->path, &path);
907
908#ifdef DEBUG
909 if (ldebug(mknod))
910 printf(ARGS(mknod, "%s, %d, %d"), path, args->mode, args->dev);
911#endif
912
913 switch (args->mode & S_IFMT) {
914 case S_IFIFO:
915 case S_IFSOCK:
916 error = kern_mkfifo(td, path, UIO_SYSSPACE, args->mode);
917 break;
918
919 case S_IFCHR:
920 case S_IFBLK:
921 error = kern_mknod(td, path, UIO_SYSSPACE, args->mode,
922 args->dev);
923 break;
924
925 case S_IFDIR:
926 error = EPERM;
927 break;
928
929 case 0:
930 args->mode |= S_IFREG;
931 /* FALLTHROUGH */
932 case S_IFREG:
933 error = kern_open(td, path, UIO_SYSSPACE,
934 O_WRONLY | O_CREAT | O_TRUNC, args->mode);
935 if (error == 0)
936 kern_close(td, td->td_retval[0]);
937 break;
938
939 default:
940 error = EINVAL;
941 break;
942 }
943 LFREEPATH(path);
944 return (error);
945}
946
947int
948linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
949{
950 char *path;
951 int error, dfd;
952
953 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
954 LCONVPATHCREAT_AT(td, args->filename, &path, dfd);
955
956#ifdef DEBUG
957 if (ldebug(mknodat))
958 printf(ARGS(mknodat, "%s, %d, %d"), path, args->mode, args->dev);
959#endif
960
961 switch (args->mode & S_IFMT) {
962 case S_IFIFO:
963 case S_IFSOCK:
964 error = kern_mkfifoat(td, dfd, path, UIO_SYSSPACE, args->mode);
965 break;
966
967 case S_IFCHR:
968 case S_IFBLK:
969 error = kern_mknodat(td, dfd, path, UIO_SYSSPACE, args->mode,
970 args->dev);
971 break;
972
973 case S_IFDIR:
974 error = EPERM;
975 break;
976
977 case 0:
978 args->mode |= S_IFREG;
979 /* FALLTHROUGH */
980 case S_IFREG:
981 error = kern_openat(td, dfd, path, UIO_SYSSPACE,
982 O_WRONLY | O_CREAT | O_TRUNC, args->mode);
983 if (error == 0)
984 kern_close(td, td->td_retval[0]);
985 break;
986
987 default:
988 error = EINVAL;
989 break;
990 }
991 LFREEPATH(path);
992 return (error);
993}
994
995/*
996 * UGH! This is just about the dumbest idea I've ever heard!!
997 */
998int
999linux_personality(struct thread *td, struct linux_personality_args *args)
1000{
1001#ifdef DEBUG
1002 if (ldebug(personality))
1003 printf(ARGS(personality, "%lu"), (unsigned long)args->per);
1004#endif
1005 if (args->per != 0)
| 770 }
771 tv[0].tv_sec = lut.l_actime;
772 tv[0].tv_usec = 0;
773 tv[1].tv_sec = lut.l_modtime;
774 tv[1].tv_usec = 0;
775 tvp = tv;
776 } else
777 tvp = NULL;
778
779 error = kern_utimes(td, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
780 LFREEPATH(fname);
781 return (error);
782}
783
784int
785linux_utimes(struct thread *td, struct linux_utimes_args *args)
786{
787 l_timeval ltv[2];
788 struct timeval tv[2], *tvp = NULL;
789 char *fname;
790 int error;
791
792 LCONVPATHEXIST(td, args->fname, &fname);
793
794#ifdef DEBUG
795 if (ldebug(utimes))
796 printf(ARGS(utimes, "%s, *"), fname);
797#endif
798
799 if (args->tptr != NULL) {
800 if ((error = copyin(args->tptr, ltv, sizeof ltv))) {
801 LFREEPATH(fname);
802 return (error);
803 }
804 tv[0].tv_sec = ltv[0].tv_sec;
805 tv[0].tv_usec = ltv[0].tv_usec;
806 tv[1].tv_sec = ltv[1].tv_sec;
807 tv[1].tv_usec = ltv[1].tv_usec;
808 tvp = tv;
809 }
810
811 error = kern_utimes(td, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
812 LFREEPATH(fname);
813 return (error);
814}
815
816int
817linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
818{
819 l_timeval ltv[2];
820 struct timeval tv[2], *tvp = NULL;
821 char *fname;
822 int error, dfd;
823
824 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
825 LCONVPATHEXIST_AT(td, args->filename, &fname, dfd);
826
827#ifdef DEBUG
828 if (ldebug(futimesat))
829 printf(ARGS(futimesat, "%s, *"), fname);
830#endif
831
832 if (args->utimes != NULL) {
833 if ((error = copyin(args->utimes, ltv, sizeof ltv))) {
834 LFREEPATH(fname);
835 return (error);
836 }
837 tv[0].tv_sec = ltv[0].tv_sec;
838 tv[0].tv_usec = ltv[0].tv_usec;
839 tv[1].tv_sec = ltv[1].tv_sec;
840 tv[1].tv_usec = ltv[1].tv_usec;
841 tvp = tv;
842 }
843
844 error = kern_utimesat(td, dfd, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
845 LFREEPATH(fname);
846 return (error);
847}
848#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
849
850int
851linux_common_wait(struct thread *td, int pid, int *status,
852 int options, struct rusage *ru)
853{
854 int error, tmpstat;
855
856 error = kern_wait(td, pid, &tmpstat, options, ru);
857 if (error)
858 return (error);
859
860 if (status) {
861 tmpstat &= 0xffff;
862 if (WIFSIGNALED(tmpstat))
863 tmpstat = (tmpstat & 0xffffff80) |
864 BSD_TO_LINUX_SIGNAL(WTERMSIG(tmpstat));
865 else if (WIFSTOPPED(tmpstat))
866 tmpstat = (tmpstat & 0xffff00ff) |
867 (BSD_TO_LINUX_SIGNAL(WSTOPSIG(tmpstat)) << 8);
868 error = copyout(&tmpstat, status, sizeof(int));
869 }
870
871 return (error);
872}
873
874int
875linux_waitpid(struct thread *td, struct linux_waitpid_args *args)
876{
877 int options;
878
879#ifdef DEBUG
880 if (ldebug(waitpid))
881 printf(ARGS(waitpid, "%d, %p, %d"),
882 args->pid, (void *)args->status, args->options);
883#endif
884 /*
885 * this is necessary because the test in kern_wait doesn't work
886 * because we mess with the options here
887 */
888 if (args->options & ~(WUNTRACED | WNOHANG | WCONTINUED | __WCLONE))
889 return (EINVAL);
890
891 options = (args->options & (WNOHANG | WUNTRACED));
892 /* WLINUXCLONE should be equal to __WCLONE, but we make sure */
893 if (args->options & __WCLONE)
894 options |= WLINUXCLONE;
895
896 return (linux_common_wait(td, args->pid, args->status, options, NULL));
897}
898
899
900int
901linux_mknod(struct thread *td, struct linux_mknod_args *args)
902{
903 char *path;
904 int error;
905
906 LCONVPATHCREAT(td, args->path, &path);
907
908#ifdef DEBUG
909 if (ldebug(mknod))
910 printf(ARGS(mknod, "%s, %d, %d"), path, args->mode, args->dev);
911#endif
912
913 switch (args->mode & S_IFMT) {
914 case S_IFIFO:
915 case S_IFSOCK:
916 error = kern_mkfifo(td, path, UIO_SYSSPACE, args->mode);
917 break;
918
919 case S_IFCHR:
920 case S_IFBLK:
921 error = kern_mknod(td, path, UIO_SYSSPACE, args->mode,
922 args->dev);
923 break;
924
925 case S_IFDIR:
926 error = EPERM;
927 break;
928
929 case 0:
930 args->mode |= S_IFREG;
931 /* FALLTHROUGH */
932 case S_IFREG:
933 error = kern_open(td, path, UIO_SYSSPACE,
934 O_WRONLY | O_CREAT | O_TRUNC, args->mode);
935 if (error == 0)
936 kern_close(td, td->td_retval[0]);
937 break;
938
939 default:
940 error = EINVAL;
941 break;
942 }
943 LFREEPATH(path);
944 return (error);
945}
946
947int
948linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
949{
950 char *path;
951 int error, dfd;
952
953 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
954 LCONVPATHCREAT_AT(td, args->filename, &path, dfd);
955
956#ifdef DEBUG
957 if (ldebug(mknodat))
958 printf(ARGS(mknodat, "%s, %d, %d"), path, args->mode, args->dev);
959#endif
960
961 switch (args->mode & S_IFMT) {
962 case S_IFIFO:
963 case S_IFSOCK:
964 error = kern_mkfifoat(td, dfd, path, UIO_SYSSPACE, args->mode);
965 break;
966
967 case S_IFCHR:
968 case S_IFBLK:
969 error = kern_mknodat(td, dfd, path, UIO_SYSSPACE, args->mode,
970 args->dev);
971 break;
972
973 case S_IFDIR:
974 error = EPERM;
975 break;
976
977 case 0:
978 args->mode |= S_IFREG;
979 /* FALLTHROUGH */
980 case S_IFREG:
981 error = kern_openat(td, dfd, path, UIO_SYSSPACE,
982 O_WRONLY | O_CREAT | O_TRUNC, args->mode);
983 if (error == 0)
984 kern_close(td, td->td_retval[0]);
985 break;
986
987 default:
988 error = EINVAL;
989 break;
990 }
991 LFREEPATH(path);
992 return (error);
993}
994
995/*
996 * UGH! This is just about the dumbest idea I've ever heard!!
997 */
998int
999linux_personality(struct thread *td, struct linux_personality_args *args)
1000{
1001#ifdef DEBUG
1002 if (ldebug(personality))
1003 printf(ARGS(personality, "%lu"), (unsigned long)args->per);
1004#endif
1005 if (args->per != 0)
|
1006 return EINVAL;
| 1006 return (EINVAL);
|
1007
1008 /* Yes Jim, it's still a Linux... */
1009 td->td_retval[0] = 0;
| 1007
1008 /* Yes Jim, it's still a Linux... */
1009 td->td_retval[0] = 0;
|
1010 return 0;
| 1010 return (0);
|
1011}
1012
1013struct l_itimerval {
1014 l_timeval it_interval;
1015 l_timeval it_value;
1016};
1017
1018#define B2L_ITIMERVAL(bip, lip) \
1019 (bip)->it_interval.tv_sec = (lip)->it_interval.tv_sec; \
1020 (bip)->it_interval.tv_usec = (lip)->it_interval.tv_usec; \
1021 (bip)->it_value.tv_sec = (lip)->it_value.tv_sec; \
1022 (bip)->it_value.tv_usec = (lip)->it_value.tv_usec;
1023
1024int
1025linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
1026{
1027 int error;
1028 struct l_itimerval ls;
1029 struct itimerval aitv, oitv;
1030
1031#ifdef DEBUG
1032 if (ldebug(setitimer))
1033 printf(ARGS(setitimer, "%p, %p"),
1034 (void *)uap->itv, (void *)uap->oitv);
1035#endif
1036
1037 if (uap->itv == NULL) {
1038 uap->itv = uap->oitv;
1039 return (linux_getitimer(td, (struct linux_getitimer_args *)uap));
1040 }
1041
1042 error = copyin(uap->itv, &ls, sizeof(ls));
1043 if (error != 0)
1044 return (error);
1045 B2L_ITIMERVAL(&aitv, &ls);
1046#ifdef DEBUG
1047 if (ldebug(setitimer)) {
1048 printf("setitimer: value: sec: %jd, usec: %ld\n",
1049 (intmax_t)aitv.it_value.tv_sec, aitv.it_value.tv_usec);
1050 printf("setitimer: interval: sec: %jd, usec: %ld\n",
1051 (intmax_t)aitv.it_interval.tv_sec, aitv.it_interval.tv_usec);
1052 }
1053#endif
1054 error = kern_setitimer(td, uap->which, &aitv, &oitv);
1055 if (error != 0 || uap->oitv == NULL)
1056 return (error);
1057 B2L_ITIMERVAL(&ls, &oitv);
1058
1059 return (copyout(&ls, uap->oitv, sizeof(ls)));
1060}
1061
1062int
1063linux_getitimer(struct thread *td, struct linux_getitimer_args *uap)
1064{
1065 int error;
1066 struct l_itimerval ls;
1067 struct itimerval aitv;
1068
1069#ifdef DEBUG
1070 if (ldebug(getitimer))
1071 printf(ARGS(getitimer, "%p"), (void *)uap->itv);
1072#endif
1073 error = kern_getitimer(td, uap->which, &aitv);
1074 if (error != 0)
1075 return (error);
1076 B2L_ITIMERVAL(&ls, &aitv);
1077 return (copyout(&ls, uap->itv, sizeof(ls)));
1078}
1079
1080int
1081linux_nice(struct thread *td, struct linux_nice_args *args)
1082{
1083 struct setpriority_args bsd_args;
1084
1085 bsd_args.which = PRIO_PROCESS;
1086 bsd_args.who = 0; /* current process */
1087 bsd_args.prio = args->inc;
| 1011}
1012
1013struct l_itimerval {
1014 l_timeval it_interval;
1015 l_timeval it_value;
1016};
1017
1018#define B2L_ITIMERVAL(bip, lip) \
1019 (bip)->it_interval.tv_sec = (lip)->it_interval.tv_sec; \
1020 (bip)->it_interval.tv_usec = (lip)->it_interval.tv_usec; \
1021 (bip)->it_value.tv_sec = (lip)->it_value.tv_sec; \
1022 (bip)->it_value.tv_usec = (lip)->it_value.tv_usec;
1023
1024int
1025linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
1026{
1027 int error;
1028 struct l_itimerval ls;
1029 struct itimerval aitv, oitv;
1030
1031#ifdef DEBUG
1032 if (ldebug(setitimer))
1033 printf(ARGS(setitimer, "%p, %p"),
1034 (void *)uap->itv, (void *)uap->oitv);
1035#endif
1036
1037 if (uap->itv == NULL) {
1038 uap->itv = uap->oitv;
1039 return (linux_getitimer(td, (struct linux_getitimer_args *)uap));
1040 }
1041
1042 error = copyin(uap->itv, &ls, sizeof(ls));
1043 if (error != 0)
1044 return (error);
1045 B2L_ITIMERVAL(&aitv, &ls);
1046#ifdef DEBUG
1047 if (ldebug(setitimer)) {
1048 printf("setitimer: value: sec: %jd, usec: %ld\n",
1049 (intmax_t)aitv.it_value.tv_sec, aitv.it_value.tv_usec);
1050 printf("setitimer: interval: sec: %jd, usec: %ld\n",
1051 (intmax_t)aitv.it_interval.tv_sec, aitv.it_interval.tv_usec);
1052 }
1053#endif
1054 error = kern_setitimer(td, uap->which, &aitv, &oitv);
1055 if (error != 0 || uap->oitv == NULL)
1056 return (error);
1057 B2L_ITIMERVAL(&ls, &oitv);
1058
1059 return (copyout(&ls, uap->oitv, sizeof(ls)));
1060}
1061
1062int
1063linux_getitimer(struct thread *td, struct linux_getitimer_args *uap)
1064{
1065 int error;
1066 struct l_itimerval ls;
1067 struct itimerval aitv;
1068
1069#ifdef DEBUG
1070 if (ldebug(getitimer))
1071 printf(ARGS(getitimer, "%p"), (void *)uap->itv);
1072#endif
1073 error = kern_getitimer(td, uap->which, &aitv);
1074 if (error != 0)
1075 return (error);
1076 B2L_ITIMERVAL(&ls, &aitv);
1077 return (copyout(&ls, uap->itv, sizeof(ls)));
1078}
1079
1080int
1081linux_nice(struct thread *td, struct linux_nice_args *args)
1082{
1083 struct setpriority_args bsd_args;
1084
1085 bsd_args.which = PRIO_PROCESS;
1086 bsd_args.who = 0; /* current process */
1087 bsd_args.prio = args->inc;
|
1088 return setpriority(td, &bsd_args);
| 1088 return (setpriority(td, &bsd_args));
|
1089}
1090
1091int
1092linux_setgroups(struct thread *td, struct linux_setgroups_args *args)
1093{
1094 struct ucred *newcred, *oldcred;
1095 l_gid_t *linux_gidset;
1096 gid_t *bsd_gidset;
1097 int ngrp, error;
1098 struct proc *p;
1099
1100 ngrp = args->gidsetsize;
1101 if (ngrp < 0 || ngrp >= ngroups_max + 1)
1102 return (EINVAL);
1103 linux_gidset = malloc(ngrp * sizeof(*linux_gidset), M_TEMP, M_WAITOK);
1104 error = copyin(args->grouplist, linux_gidset, ngrp * sizeof(l_gid_t));
1105 if (error)
1106 goto out;
1107 newcred = crget();
1108 p = td->td_proc;
1109 PROC_LOCK(p);
1110 oldcred = crcopysafe(p, newcred);
1111
1112 /*
1113 * cr_groups[0] holds egid. Setting the whole set from
1114 * the supplied set will cause egid to be changed too.
1115 * Keep cr_groups[0] unchanged to prevent that.
1116 */
1117
1118 if ((error = priv_check_cred(oldcred, PRIV_CRED_SETGROUPS, 0)) != 0) {
1119 PROC_UNLOCK(p);
1120 crfree(newcred);
1121 goto out;
1122 }
1123
1124 if (ngrp > 0) {
1125 newcred->cr_ngroups = ngrp + 1;
1126
1127 bsd_gidset = newcred->cr_groups;
1128 ngrp--;
1129 while (ngrp >= 0) {
1130 bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
1131 ngrp--;
1132 }
1133 } else
1134 newcred->cr_ngroups = 1;
1135
1136 setsugid(p);
1137 p->p_ucred = newcred;
1138 PROC_UNLOCK(p);
1139 crfree(oldcred);
1140 error = 0;
1141out:
1142 free(linux_gidset, M_TEMP);
1143 return (error);
1144}
1145
1146int
1147linux_getgroups(struct thread *td, struct linux_getgroups_args *args)
1148{
1149 struct ucred *cred;
1150 l_gid_t *linux_gidset;
1151 gid_t *bsd_gidset;
1152 int bsd_gidsetsz, ngrp, error;
1153
1154 cred = td->td_ucred;
1155 bsd_gidset = cred->cr_groups;
1156 bsd_gidsetsz = cred->cr_ngroups - 1;
1157
1158 /*
1159 * cr_groups[0] holds egid. Returning the whole set
1160 * here will cause a duplicate. Exclude cr_groups[0]
1161 * to prevent that.
1162 */
1163
1164 if ((ngrp = args->gidsetsize) == 0) {
1165 td->td_retval[0] = bsd_gidsetsz;
1166 return (0);
1167 }
1168
1169 if (ngrp < bsd_gidsetsz)
1170 return (EINVAL);
1171
1172 ngrp = 0;
1173 linux_gidset = malloc(bsd_gidsetsz * sizeof(*linux_gidset),
1174 M_TEMP, M_WAITOK);
1175 while (ngrp < bsd_gidsetsz) {
1176 linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
1177 ngrp++;
1178 }
1179
1180 error = copyout(linux_gidset, args->grouplist, ngrp * sizeof(l_gid_t));
1181 free(linux_gidset, M_TEMP);
1182 if (error)
1183 return (error);
1184
1185 td->td_retval[0] = ngrp;
1186 return (0);
1187}
1188
1189int
1190linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
1191{
1192 struct rlimit bsd_rlim;
1193 struct l_rlimit rlim;
1194 u_int which;
1195 int error;
1196
1197#ifdef DEBUG
1198 if (ldebug(setrlimit))
1199 printf(ARGS(setrlimit, "%d, %p"),
1200 args->resource, (void *)args->rlim);
1201#endif
1202
1203 if (args->resource >= LINUX_RLIM_NLIMITS)
1204 return (EINVAL);
1205
1206 which = linux_to_bsd_resource[args->resource];
1207 if (which == -1)
1208 return (EINVAL);
1209
1210 error = copyin(args->rlim, &rlim, sizeof(rlim));
1211 if (error)
1212 return (error);
1213
1214 bsd_rlim.rlim_cur = (rlim_t)rlim.rlim_cur;
1215 bsd_rlim.rlim_max = (rlim_t)rlim.rlim_max;
1216 return (kern_setrlimit(td, which, &bsd_rlim));
1217}
1218
1219int
1220linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
1221{
1222 struct l_rlimit rlim;
1223 struct proc *p = td->td_proc;
1224 struct rlimit bsd_rlim;
1225 u_int which;
1226
1227#ifdef DEBUG
1228 if (ldebug(old_getrlimit))
1229 printf(ARGS(old_getrlimit, "%d, %p"),
1230 args->resource, (void *)args->rlim);
1231#endif
1232
1233 if (args->resource >= LINUX_RLIM_NLIMITS)
1234 return (EINVAL);
1235
1236 which = linux_to_bsd_resource[args->resource];
1237 if (which == -1)
1238 return (EINVAL);
1239
1240 PROC_LOCK(p);
1241 lim_rlimit(p, which, &bsd_rlim);
1242 PROC_UNLOCK(p);
1243
1244#ifdef COMPAT_LINUX32
1245 rlim.rlim_cur = (unsigned int)bsd_rlim.rlim_cur;
1246 if (rlim.rlim_cur == UINT_MAX)
1247 rlim.rlim_cur = INT_MAX;
1248 rlim.rlim_max = (unsigned int)bsd_rlim.rlim_max;
1249 if (rlim.rlim_max == UINT_MAX)
1250 rlim.rlim_max = INT_MAX;
1251#else
1252 rlim.rlim_cur = (unsigned long)bsd_rlim.rlim_cur;
1253 if (rlim.rlim_cur == ULONG_MAX)
1254 rlim.rlim_cur = LONG_MAX;
1255 rlim.rlim_max = (unsigned long)bsd_rlim.rlim_max;
1256 if (rlim.rlim_max == ULONG_MAX)
1257 rlim.rlim_max = LONG_MAX;
1258#endif
1259 return (copyout(&rlim, args->rlim, sizeof(rlim)));
1260}
1261
1262int
1263linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
1264{
1265 struct l_rlimit rlim;
1266 struct proc *p = td->td_proc;
1267 struct rlimit bsd_rlim;
1268 u_int which;
1269
1270#ifdef DEBUG
1271 if (ldebug(getrlimit))
1272 printf(ARGS(getrlimit, "%d, %p"),
1273 args->resource, (void *)args->rlim);
1274#endif
1275
1276 if (args->resource >= LINUX_RLIM_NLIMITS)
1277 return (EINVAL);
1278
1279 which = linux_to_bsd_resource[args->resource];
1280 if (which == -1)
1281 return (EINVAL);
1282
1283 PROC_LOCK(p);
1284 lim_rlimit(p, which, &bsd_rlim);
1285 PROC_UNLOCK(p);
1286
1287 rlim.rlim_cur = (l_ulong)bsd_rlim.rlim_cur;
1288 rlim.rlim_max = (l_ulong)bsd_rlim.rlim_max;
1289 return (copyout(&rlim, args->rlim, sizeof(rlim)));
1290}
1291
1292int
1293linux_sched_setscheduler(struct thread *td,
1294 struct linux_sched_setscheduler_args *args)
1295{
1296 struct sched_setscheduler_args bsd;
1297
1298#ifdef DEBUG
1299 if (ldebug(sched_setscheduler))
1300 printf(ARGS(sched_setscheduler, "%d, %d, %p"),
1301 args->pid, args->policy, (const void *)args->param);
1302#endif
1303
1304 switch (args->policy) {
1305 case LINUX_SCHED_OTHER:
1306 bsd.policy = SCHED_OTHER;
1307 break;
1308 case LINUX_SCHED_FIFO:
1309 bsd.policy = SCHED_FIFO;
1310 break;
1311 case LINUX_SCHED_RR:
1312 bsd.policy = SCHED_RR;
1313 break;
1314 default:
| 1089}
1090
1091int
1092linux_setgroups(struct thread *td, struct linux_setgroups_args *args)
1093{
1094 struct ucred *newcred, *oldcred;
1095 l_gid_t *linux_gidset;
1096 gid_t *bsd_gidset;
1097 int ngrp, error;
1098 struct proc *p;
1099
1100 ngrp = args->gidsetsize;
1101 if (ngrp < 0 || ngrp >= ngroups_max + 1)
1102 return (EINVAL);
1103 linux_gidset = malloc(ngrp * sizeof(*linux_gidset), M_TEMP, M_WAITOK);
1104 error = copyin(args->grouplist, linux_gidset, ngrp * sizeof(l_gid_t));
1105 if (error)
1106 goto out;
1107 newcred = crget();
1108 p = td->td_proc;
1109 PROC_LOCK(p);
1110 oldcred = crcopysafe(p, newcred);
1111
1112 /*
1113 * cr_groups[0] holds egid. Setting the whole set from
1114 * the supplied set will cause egid to be changed too.
1115 * Keep cr_groups[0] unchanged to prevent that.
1116 */
1117
1118 if ((error = priv_check_cred(oldcred, PRIV_CRED_SETGROUPS, 0)) != 0) {
1119 PROC_UNLOCK(p);
1120 crfree(newcred);
1121 goto out;
1122 }
1123
1124 if (ngrp > 0) {
1125 newcred->cr_ngroups = ngrp + 1;
1126
1127 bsd_gidset = newcred->cr_groups;
1128 ngrp--;
1129 while (ngrp >= 0) {
1130 bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
1131 ngrp--;
1132 }
1133 } else
1134 newcred->cr_ngroups = 1;
1135
1136 setsugid(p);
1137 p->p_ucred = newcred;
1138 PROC_UNLOCK(p);
1139 crfree(oldcred);
1140 error = 0;
1141out:
1142 free(linux_gidset, M_TEMP);
1143 return (error);
1144}
1145
1146int
1147linux_getgroups(struct thread *td, struct linux_getgroups_args *args)
1148{
1149 struct ucred *cred;
1150 l_gid_t *linux_gidset;
1151 gid_t *bsd_gidset;
1152 int bsd_gidsetsz, ngrp, error;
1153
1154 cred = td->td_ucred;
1155 bsd_gidset = cred->cr_groups;
1156 bsd_gidsetsz = cred->cr_ngroups - 1;
1157
1158 /*
1159 * cr_groups[0] holds egid. Returning the whole set
1160 * here will cause a duplicate. Exclude cr_groups[0]
1161 * to prevent that.
1162 */
1163
1164 if ((ngrp = args->gidsetsize) == 0) {
1165 td->td_retval[0] = bsd_gidsetsz;
1166 return (0);
1167 }
1168
1169 if (ngrp < bsd_gidsetsz)
1170 return (EINVAL);
1171
1172 ngrp = 0;
1173 linux_gidset = malloc(bsd_gidsetsz * sizeof(*linux_gidset),
1174 M_TEMP, M_WAITOK);
1175 while (ngrp < bsd_gidsetsz) {
1176 linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
1177 ngrp++;
1178 }
1179
1180 error = copyout(linux_gidset, args->grouplist, ngrp * sizeof(l_gid_t));
1181 free(linux_gidset, M_TEMP);
1182 if (error)
1183 return (error);
1184
1185 td->td_retval[0] = ngrp;
1186 return (0);
1187}
1188
1189int
1190linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
1191{
1192 struct rlimit bsd_rlim;
1193 struct l_rlimit rlim;
1194 u_int which;
1195 int error;
1196
1197#ifdef DEBUG
1198 if (ldebug(setrlimit))
1199 printf(ARGS(setrlimit, "%d, %p"),
1200 args->resource, (void *)args->rlim);
1201#endif
1202
1203 if (args->resource >= LINUX_RLIM_NLIMITS)
1204 return (EINVAL);
1205
1206 which = linux_to_bsd_resource[args->resource];
1207 if (which == -1)
1208 return (EINVAL);
1209
1210 error = copyin(args->rlim, &rlim, sizeof(rlim));
1211 if (error)
1212 return (error);
1213
1214 bsd_rlim.rlim_cur = (rlim_t)rlim.rlim_cur;
1215 bsd_rlim.rlim_max = (rlim_t)rlim.rlim_max;
1216 return (kern_setrlimit(td, which, &bsd_rlim));
1217}
1218
1219int
1220linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
1221{
1222 struct l_rlimit rlim;
1223 struct proc *p = td->td_proc;
1224 struct rlimit bsd_rlim;
1225 u_int which;
1226
1227#ifdef DEBUG
1228 if (ldebug(old_getrlimit))
1229 printf(ARGS(old_getrlimit, "%d, %p"),
1230 args->resource, (void *)args->rlim);
1231#endif
1232
1233 if (args->resource >= LINUX_RLIM_NLIMITS)
1234 return (EINVAL);
1235
1236 which = linux_to_bsd_resource[args->resource];
1237 if (which == -1)
1238 return (EINVAL);
1239
1240 PROC_LOCK(p);
1241 lim_rlimit(p, which, &bsd_rlim);
1242 PROC_UNLOCK(p);
1243
1244#ifdef COMPAT_LINUX32
1245 rlim.rlim_cur = (unsigned int)bsd_rlim.rlim_cur;
1246 if (rlim.rlim_cur == UINT_MAX)
1247 rlim.rlim_cur = INT_MAX;
1248 rlim.rlim_max = (unsigned int)bsd_rlim.rlim_max;
1249 if (rlim.rlim_max == UINT_MAX)
1250 rlim.rlim_max = INT_MAX;
1251#else
1252 rlim.rlim_cur = (unsigned long)bsd_rlim.rlim_cur;
1253 if (rlim.rlim_cur == ULONG_MAX)
1254 rlim.rlim_cur = LONG_MAX;
1255 rlim.rlim_max = (unsigned long)bsd_rlim.rlim_max;
1256 if (rlim.rlim_max == ULONG_MAX)
1257 rlim.rlim_max = LONG_MAX;
1258#endif
1259 return (copyout(&rlim, args->rlim, sizeof(rlim)));
1260}
1261
1262int
1263linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
1264{
1265 struct l_rlimit rlim;
1266 struct proc *p = td->td_proc;
1267 struct rlimit bsd_rlim;
1268 u_int which;
1269
1270#ifdef DEBUG
1271 if (ldebug(getrlimit))
1272 printf(ARGS(getrlimit, "%d, %p"),
1273 args->resource, (void *)args->rlim);
1274#endif
1275
1276 if (args->resource >= LINUX_RLIM_NLIMITS)
1277 return (EINVAL);
1278
1279 which = linux_to_bsd_resource[args->resource];
1280 if (which == -1)
1281 return (EINVAL);
1282
1283 PROC_LOCK(p);
1284 lim_rlimit(p, which, &bsd_rlim);
1285 PROC_UNLOCK(p);
1286
1287 rlim.rlim_cur = (l_ulong)bsd_rlim.rlim_cur;
1288 rlim.rlim_max = (l_ulong)bsd_rlim.rlim_max;
1289 return (copyout(&rlim, args->rlim, sizeof(rlim)));
1290}
1291
1292int
1293linux_sched_setscheduler(struct thread *td,
1294 struct linux_sched_setscheduler_args *args)
1295{
1296 struct sched_setscheduler_args bsd;
1297
1298#ifdef DEBUG
1299 if (ldebug(sched_setscheduler))
1300 printf(ARGS(sched_setscheduler, "%d, %d, %p"),
1301 args->pid, args->policy, (const void *)args->param);
1302#endif
1303
1304 switch (args->policy) {
1305 case LINUX_SCHED_OTHER:
1306 bsd.policy = SCHED_OTHER;
1307 break;
1308 case LINUX_SCHED_FIFO:
1309 bsd.policy = SCHED_FIFO;
1310 break;
1311 case LINUX_SCHED_RR:
1312 bsd.policy = SCHED_RR;
1313 break;
1314 default:
|
1315 return EINVAL;
| 1315 return (EINVAL);
|
1316 }
1317
1318 bsd.pid = args->pid;
1319 bsd.param = (struct sched_param *)args->param;
| 1316 }
1317
1318 bsd.pid = args->pid;
1319 bsd.param = (struct sched_param *)args->param;
|
1320 return sched_setscheduler(td, &bsd);
| 1320 return (sched_setscheduler(td, &bsd));
|
1321}
1322
1323int
1324linux_sched_getscheduler(struct thread *td,
1325 struct linux_sched_getscheduler_args *args)
1326{
1327 struct sched_getscheduler_args bsd;
1328 int error;
1329
1330#ifdef DEBUG
1331 if (ldebug(sched_getscheduler))
1332 printf(ARGS(sched_getscheduler, "%d"), args->pid);
1333#endif
1334
1335 bsd.pid = args->pid;
1336 error = sched_getscheduler(td, &bsd);
1337
1338 switch (td->td_retval[0]) {
1339 case SCHED_OTHER:
1340 td->td_retval[0] = LINUX_SCHED_OTHER;
1341 break;
1342 case SCHED_FIFO:
1343 td->td_retval[0] = LINUX_SCHED_FIFO;
1344 break;
1345 case SCHED_RR:
1346 td->td_retval[0] = LINUX_SCHED_RR;
1347 break;
1348 }
1349
| 1321}
1322
1323int
1324linux_sched_getscheduler(struct thread *td,
1325 struct linux_sched_getscheduler_args *args)
1326{
1327 struct sched_getscheduler_args bsd;
1328 int error;
1329
1330#ifdef DEBUG
1331 if (ldebug(sched_getscheduler))
1332 printf(ARGS(sched_getscheduler, "%d"), args->pid);
1333#endif
1334
1335 bsd.pid = args->pid;
1336 error = sched_getscheduler(td, &bsd);
1337
1338 switch (td->td_retval[0]) {
1339 case SCHED_OTHER:
1340 td->td_retval[0] = LINUX_SCHED_OTHER;
1341 break;
1342 case SCHED_FIFO:
1343 td->td_retval[0] = LINUX_SCHED_FIFO;
1344 break;
1345 case SCHED_RR:
1346 td->td_retval[0] = LINUX_SCHED_RR;
1347 break;
1348 }
1349
|
1350 return error;
| 1350 return (error);
|
1351}
1352
1353int
1354linux_sched_get_priority_max(struct thread *td,
1355 struct linux_sched_get_priority_max_args *args)
1356{
1357 struct sched_get_priority_max_args bsd;
1358
1359#ifdef DEBUG
1360 if (ldebug(sched_get_priority_max))
1361 printf(ARGS(sched_get_priority_max, "%d"), args->policy);
1362#endif
1363
1364 switch (args->policy) {
1365 case LINUX_SCHED_OTHER:
1366 bsd.policy = SCHED_OTHER;
1367 break;
1368 case LINUX_SCHED_FIFO:
1369 bsd.policy = SCHED_FIFO;
1370 break;
1371 case LINUX_SCHED_RR:
1372 bsd.policy = SCHED_RR;
1373 break;
1374 default:
| 1351}
1352
1353int
1354linux_sched_get_priority_max(struct thread *td,
1355 struct linux_sched_get_priority_max_args *args)
1356{
1357 struct sched_get_priority_max_args bsd;
1358
1359#ifdef DEBUG
1360 if (ldebug(sched_get_priority_max))
1361 printf(ARGS(sched_get_priority_max, "%d"), args->policy);
1362#endif
1363
1364 switch (args->policy) {
1365 case LINUX_SCHED_OTHER:
1366 bsd.policy = SCHED_OTHER;
1367 break;
1368 case LINUX_SCHED_FIFO:
1369 bsd.policy = SCHED_FIFO;
1370 break;
1371 case LINUX_SCHED_RR:
1372 bsd.policy = SCHED_RR;
1373 break;
1374 default:
|
1375 return EINVAL;
| 1375 return (EINVAL);
|
1376 }
| 1376 }
|
1377 return sched_get_priority_max(td, &bsd);
| 1377 return (sched_get_priority_max(td, &bsd));
|
1378}
1379
1380int
1381linux_sched_get_priority_min(struct thread *td,
1382 struct linux_sched_get_priority_min_args *args)
1383{
1384 struct sched_get_priority_min_args bsd;
1385
1386#ifdef DEBUG
1387 if (ldebug(sched_get_priority_min))
1388 printf(ARGS(sched_get_priority_min, "%d"), args->policy);
1389#endif
1390
1391 switch (args->policy) {
1392 case LINUX_SCHED_OTHER:
1393 bsd.policy = SCHED_OTHER;
1394 break;
1395 case LINUX_SCHED_FIFO:
1396 bsd.policy = SCHED_FIFO;
1397 break;
1398 case LINUX_SCHED_RR:
1399 bsd.policy = SCHED_RR;
1400 break;
1401 default:
| 1378}
1379
1380int
1381linux_sched_get_priority_min(struct thread *td,
1382 struct linux_sched_get_priority_min_args *args)
1383{
1384 struct sched_get_priority_min_args bsd;
1385
1386#ifdef DEBUG
1387 if (ldebug(sched_get_priority_min))
1388 printf(ARGS(sched_get_priority_min, "%d"), args->policy);
1389#endif
1390
1391 switch (args->policy) {
1392 case LINUX_SCHED_OTHER:
1393 bsd.policy = SCHED_OTHER;
1394 break;
1395 case LINUX_SCHED_FIFO:
1396 bsd.policy = SCHED_FIFO;
1397 break;
1398 case LINUX_SCHED_RR:
1399 bsd.policy = SCHED_RR;
1400 break;
1401 default:
|
1402 return EINVAL;
| 1402 return (EINVAL);
|
1403 }
| 1403 }
|
1404 return sched_get_priority_min(td, &bsd);
| 1404 return (sched_get_priority_min(td, &bsd));
|
1405}
1406
1407#define REBOOT_CAD_ON 0x89abcdef
1408#define REBOOT_CAD_OFF 0
1409#define REBOOT_HALT 0xcdef0123
1410#define REBOOT_RESTART 0x01234567
1411#define REBOOT_RESTART2 0xA1B2C3D4
1412#define REBOOT_POWEROFF 0x4321FEDC
1413#define REBOOT_MAGIC1 0xfee1dead
1414#define REBOOT_MAGIC2 0x28121969
1415#define REBOOT_MAGIC2A 0x05121996
1416#define REBOOT_MAGIC2B 0x16041998
1417
1418int
1419linux_reboot(struct thread *td, struct linux_reboot_args *args)
1420{
1421 struct reboot_args bsd_args;
1422
1423#ifdef DEBUG
1424 if (ldebug(reboot))
1425 printf(ARGS(reboot, "0x%x"), args->cmd);
1426#endif
1427
1428 if (args->magic1 != REBOOT_MAGIC1)
| 1405}
1406
1407#define REBOOT_CAD_ON 0x89abcdef
1408#define REBOOT_CAD_OFF 0
1409#define REBOOT_HALT 0xcdef0123
1410#define REBOOT_RESTART 0x01234567
1411#define REBOOT_RESTART2 0xA1B2C3D4
1412#define REBOOT_POWEROFF 0x4321FEDC
1413#define REBOOT_MAGIC1 0xfee1dead
1414#define REBOOT_MAGIC2 0x28121969
1415#define REBOOT_MAGIC2A 0x05121996
1416#define REBOOT_MAGIC2B 0x16041998
1417
1418int
1419linux_reboot(struct thread *td, struct linux_reboot_args *args)
1420{
1421 struct reboot_args bsd_args;
1422
1423#ifdef DEBUG
1424 if (ldebug(reboot))
1425 printf(ARGS(reboot, "0x%x"), args->cmd);
1426#endif
1427
1428 if (args->magic1 != REBOOT_MAGIC1)
|
1429 return EINVAL;
| 1429 return (EINVAL);
|
1430
1431 switch (args->magic2) {
1432 case REBOOT_MAGIC2:
1433 case REBOOT_MAGIC2A:
1434 case REBOOT_MAGIC2B:
1435 break;
1436 default:
| 1430
1431 switch (args->magic2) {
1432 case REBOOT_MAGIC2:
1433 case REBOOT_MAGIC2A:
1434 case REBOOT_MAGIC2B:
1435 break;
1436 default:
|
1437 return EINVAL;
| 1437 return (EINVAL);
|
1438 }
1439
1440 switch (args->cmd) {
1441 case REBOOT_CAD_ON:
1442 case REBOOT_CAD_OFF:
1443 return (priv_check(td, PRIV_REBOOT));
1444 case REBOOT_HALT:
1445 bsd_args.opt = RB_HALT;
1446 break;
1447 case REBOOT_RESTART:
1448 case REBOOT_RESTART2:
1449 bsd_args.opt = 0;
1450 break;
1451 case REBOOT_POWEROFF:
1452 bsd_args.opt = RB_POWEROFF;
1453 break;
1454 default:
| 1438 }
1439
1440 switch (args->cmd) {
1441 case REBOOT_CAD_ON:
1442 case REBOOT_CAD_OFF:
1443 return (priv_check(td, PRIV_REBOOT));
1444 case REBOOT_HALT:
1445 bsd_args.opt = RB_HALT;
1446 break;
1447 case REBOOT_RESTART:
1448 case REBOOT_RESTART2:
1449 bsd_args.opt = 0;
1450 break;
1451 case REBOOT_POWEROFF:
1452 bsd_args.opt = RB_POWEROFF;
1453 break;
1454 default:
|
1455 return EINVAL;
| 1455 return (EINVAL);
|
1456 }
| 1456 }
|
1457 return reboot(td, &bsd_args);
| 1457 return (reboot(td, &bsd_args));
|
1458}
1459
1460
1461/*
1462 * The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
1463 * td->td_retval[1] when COMPAT_43 is defined. This clobbers registers that
1464 * are assumed to be preserved. The following lightweight syscalls fixes
1465 * this. See also linux_getgid16() and linux_getuid16() in linux_uid16.c
1466 *
1467 * linux_getpid() - MP SAFE
1468 * linux_getgid() - MP SAFE
1469 * linux_getuid() - MP SAFE
1470 */
1471
1472int
1473linux_getpid(struct thread *td, struct linux_getpid_args *args)
1474{
1475 struct linux_emuldata *em;
1476
1477#ifdef DEBUG
1478 if (ldebug(getpid))
1479 printf(ARGS(getpid, ""));
1480#endif
1481
1482 if (linux_use26(td)) {
1483 em = em_find(td->td_proc, EMUL_DONTLOCK);
1484 KASSERT(em != NULL, ("getpid: emuldata not found.\n"));
1485 td->td_retval[0] = em->shared->group_pid;
1486 } else {
1487 td->td_retval[0] = td->td_proc->p_pid;
1488 }
1489
1490 return (0);
1491}
1492
1493int
1494linux_gettid(struct thread *td, struct linux_gettid_args *args)
1495{
1496
1497#ifdef DEBUG
1498 if (ldebug(gettid))
1499 printf(ARGS(gettid, ""));
1500#endif
1501
1502 td->td_retval[0] = td->td_proc->p_pid;
1503 return (0);
1504}
1505
1506
1507int
1508linux_getppid(struct thread *td, struct linux_getppid_args *args)
1509{
1510 struct linux_emuldata *em;
1511 struct proc *p, *pp;
1512
1513#ifdef DEBUG
1514 if (ldebug(getppid))
1515 printf(ARGS(getppid, ""));
1516#endif
1517
1518 if (!linux_use26(td)) {
1519 PROC_LOCK(td->td_proc);
1520 td->td_retval[0] = td->td_proc->p_pptr->p_pid;
1521 PROC_UNLOCK(td->td_proc);
1522 return (0);
1523 }
1524
1525 em = em_find(td->td_proc, EMUL_DONTLOCK);
1526
1527 KASSERT(em != NULL, ("getppid: process emuldata not found.\n"));
1528
1529 /* find the group leader */
1530 p = pfind(em->shared->group_pid);
1531
1532 if (p == NULL) {
1533#ifdef DEBUG
1534 printf(LMSG("parent process not found.\n"));
1535#endif
1536 return (0);
1537 }
1538
1539 pp = p->p_pptr; /* switch to parent */
1540 PROC_LOCK(pp);
1541 PROC_UNLOCK(p);
1542
1543 /* if its also linux process */
1544 if (pp->p_sysent == &elf_linux_sysvec) {
1545 em = em_find(pp, EMUL_DONTLOCK);
1546 KASSERT(em != NULL, ("getppid: parent emuldata not found.\n"));
1547
1548 td->td_retval[0] = em->shared->group_pid;
1549 } else
1550 td->td_retval[0] = pp->p_pid;
1551
1552 PROC_UNLOCK(pp);
1553
1554 return (0);
1555}
1556
1557int
1558linux_getgid(struct thread *td, struct linux_getgid_args *args)
1559{
1560
1561#ifdef DEBUG
1562 if (ldebug(getgid))
1563 printf(ARGS(getgid, ""));
1564#endif
1565
1566 td->td_retval[0] = td->td_ucred->cr_rgid;
1567 return (0);
1568}
1569
1570int
1571linux_getuid(struct thread *td, struct linux_getuid_args *args)
1572{
1573
1574#ifdef DEBUG
1575 if (ldebug(getuid))
1576 printf(ARGS(getuid, ""));
1577#endif
1578
1579 td->td_retval[0] = td->td_ucred->cr_ruid;
1580 return (0);
1581}
1582
1583
1584int
1585linux_getsid(struct thread *td, struct linux_getsid_args *args)
1586{
1587 struct getsid_args bsd;
1588
1589#ifdef DEBUG
1590 if (ldebug(getsid))
1591 printf(ARGS(getsid, "%i"), args->pid);
1592#endif
1593
1594 bsd.pid = args->pid;
| 1458}
1459
1460
1461/*
1462 * The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
1463 * td->td_retval[1] when COMPAT_43 is defined. This clobbers registers that
1464 * are assumed to be preserved. The following lightweight syscalls fixes
1465 * this. See also linux_getgid16() and linux_getuid16() in linux_uid16.c
1466 *
1467 * linux_getpid() - MP SAFE
1468 * linux_getgid() - MP SAFE
1469 * linux_getuid() - MP SAFE
1470 */
1471
1472int
1473linux_getpid(struct thread *td, struct linux_getpid_args *args)
1474{
1475 struct linux_emuldata *em;
1476
1477#ifdef DEBUG
1478 if (ldebug(getpid))
1479 printf(ARGS(getpid, ""));
1480#endif
1481
1482 if (linux_use26(td)) {
1483 em = em_find(td->td_proc, EMUL_DONTLOCK);
1484 KASSERT(em != NULL, ("getpid: emuldata not found.\n"));
1485 td->td_retval[0] = em->shared->group_pid;
1486 } else {
1487 td->td_retval[0] = td->td_proc->p_pid;
1488 }
1489
1490 return (0);
1491}
1492
1493int
1494linux_gettid(struct thread *td, struct linux_gettid_args *args)
1495{
1496
1497#ifdef DEBUG
1498 if (ldebug(gettid))
1499 printf(ARGS(gettid, ""));
1500#endif
1501
1502 td->td_retval[0] = td->td_proc->p_pid;
1503 return (0);
1504}
1505
1506
1507int
1508linux_getppid(struct thread *td, struct linux_getppid_args *args)
1509{
1510 struct linux_emuldata *em;
1511 struct proc *p, *pp;
1512
1513#ifdef DEBUG
1514 if (ldebug(getppid))
1515 printf(ARGS(getppid, ""));
1516#endif
1517
1518 if (!linux_use26(td)) {
1519 PROC_LOCK(td->td_proc);
1520 td->td_retval[0] = td->td_proc->p_pptr->p_pid;
1521 PROC_UNLOCK(td->td_proc);
1522 return (0);
1523 }
1524
1525 em = em_find(td->td_proc, EMUL_DONTLOCK);
1526
1527 KASSERT(em != NULL, ("getppid: process emuldata not found.\n"));
1528
1529 /* find the group leader */
1530 p = pfind(em->shared->group_pid);
1531
1532 if (p == NULL) {
1533#ifdef DEBUG
1534 printf(LMSG("parent process not found.\n"));
1535#endif
1536 return (0);
1537 }
1538
1539 pp = p->p_pptr; /* switch to parent */
1540 PROC_LOCK(pp);
1541 PROC_UNLOCK(p);
1542
1543 /* if its also linux process */
1544 if (pp->p_sysent == &elf_linux_sysvec) {
1545 em = em_find(pp, EMUL_DONTLOCK);
1546 KASSERT(em != NULL, ("getppid: parent emuldata not found.\n"));
1547
1548 td->td_retval[0] = em->shared->group_pid;
1549 } else
1550 td->td_retval[0] = pp->p_pid;
1551
1552 PROC_UNLOCK(pp);
1553
1554 return (0);
1555}
1556
1557int
1558linux_getgid(struct thread *td, struct linux_getgid_args *args)
1559{
1560
1561#ifdef DEBUG
1562 if (ldebug(getgid))
1563 printf(ARGS(getgid, ""));
1564#endif
1565
1566 td->td_retval[0] = td->td_ucred->cr_rgid;
1567 return (0);
1568}
1569
1570int
1571linux_getuid(struct thread *td, struct linux_getuid_args *args)
1572{
1573
1574#ifdef DEBUG
1575 if (ldebug(getuid))
1576 printf(ARGS(getuid, ""));
1577#endif
1578
1579 td->td_retval[0] = td->td_ucred->cr_ruid;
1580 return (0);
1581}
1582
1583
1584int
1585linux_getsid(struct thread *td, struct linux_getsid_args *args)
1586{
1587 struct getsid_args bsd;
1588
1589#ifdef DEBUG
1590 if (ldebug(getsid))
1591 printf(ARGS(getsid, "%i"), args->pid);
1592#endif
1593
1594 bsd.pid = args->pid;
|
1595 return getsid(td, &bsd);
| 1595 return (getsid(td, &bsd));
|
1596}
1597
1598int
1599linux_nosys(struct thread *td, struct nosys_args *ignore)
1600{
1601
1602 return (ENOSYS);
1603}
1604
1605int
1606linux_getpriority(struct thread *td, struct linux_getpriority_args *args)
1607{
1608 struct getpriority_args bsd_args;
1609 int error;
1610
1611#ifdef DEBUG
1612 if (ldebug(getpriority))
1613 printf(ARGS(getpriority, "%i, %i"), args->which, args->who);
1614#endif
1615
1616 bsd_args.which = args->which;
1617 bsd_args.who = args->who;
1618 error = getpriority(td, &bsd_args);
1619 td->td_retval[0] = 20 - td->td_retval[0];
| 1596}
1597
1598int
1599linux_nosys(struct thread *td, struct nosys_args *ignore)
1600{
1601
1602 return (ENOSYS);
1603}
1604
1605int
1606linux_getpriority(struct thread *td, struct linux_getpriority_args *args)
1607{
1608 struct getpriority_args bsd_args;
1609 int error;
1610
1611#ifdef DEBUG
1612 if (ldebug(getpriority))
1613 printf(ARGS(getpriority, "%i, %i"), args->which, args->who);
1614#endif
1615
1616 bsd_args.which = args->which;
1617 bsd_args.who = args->who;
1618 error = getpriority(td, &bsd_args);
1619 td->td_retval[0] = 20 - td->td_retval[0];
|
1620 return error;
| 1620 return (error);
|
1621}
1622
1623int
1624linux_sethostname(struct thread *td, struct linux_sethostname_args *args)
1625{
1626 int name[2];
1627
1628#ifdef DEBUG
1629 if (ldebug(sethostname))
1630 printf(ARGS(sethostname, "*, %i"), args->len);
1631#endif
1632
1633 name[0] = CTL_KERN;
1634 name[1] = KERN_HOSTNAME;
1635 return (userland_sysctl(td, name, 2, 0, 0, 0, args->hostname,
1636 args->len, 0, 0));
1637}
1638
1639int
1640linux_setdomainname(struct thread *td, struct linux_setdomainname_args *args)
1641{
1642 int name[2];
1643
1644#ifdef DEBUG
1645 if (ldebug(setdomainname))
1646 printf(ARGS(setdomainname, "*, %i"), args->len);
1647#endif
1648
1649 name[0] = CTL_KERN;
1650 name[1] = KERN_NISDOMAINNAME;
1651 return (userland_sysctl(td, name, 2, 0, 0, 0, args->name,
1652 args->len, 0, 0));
1653}
1654
1655int
1656linux_exit_group(struct thread *td, struct linux_exit_group_args *args)
1657{
1658 struct linux_emuldata *em;
1659
1660#ifdef DEBUG
1661 if (ldebug(exit_group))
1662 printf(ARGS(exit_group, "%i"), args->error_code);
1663#endif
1664
1665 em = em_find(td->td_proc, EMUL_DONTLOCK);
1666 if (em->shared->refs > 1) {
1667 EMUL_SHARED_WLOCK(&emul_shared_lock);
1668 em->shared->flags |= EMUL_SHARED_HASXSTAT;
1669 em->shared->xstat = W_EXITCODE(args->error_code, 0);
1670 EMUL_SHARED_WUNLOCK(&emul_shared_lock);
1671 if (linux_use26(td))
1672 linux_kill_threads(td, SIGKILL);
1673 }
1674
1675 /*
1676 * XXX: we should send a signal to the parent if
1677 * SIGNAL_EXIT_GROUP is set. We ignore that (temporarily?)
1678 * as it doesnt occur often.
1679 */
1680 exit1(td, W_EXITCODE(args->error_code, 0));
1681
1682 return (0);
1683}
1684
1685int
1686linux_prctl(struct thread *td, struct linux_prctl_args *args)
1687{
1688 int error = 0, max_size;
1689 struct proc *p = td->td_proc;
1690 char comm[LINUX_MAX_COMM_LEN];
1691 struct linux_emuldata *em;
1692 int pdeath_signal;
1693
1694#ifdef DEBUG
1695 if (ldebug(prctl))
1696 printf(ARGS(prctl, "%d, %d, %d, %d, %d"), args->option,
1697 args->arg2, args->arg3, args->arg4, args->arg5);
1698#endif
1699
1700 switch (args->option) {
1701 case LINUX_PR_SET_PDEATHSIG:
1702 if (!LINUX_SIG_VALID(args->arg2))
1703 return (EINVAL);
1704 em = em_find(p, EMUL_DOLOCK);
1705 KASSERT(em != NULL, ("prctl: emuldata not found.\n"));
1706 em->pdeath_signal = args->arg2;
1707 EMUL_UNLOCK(&emul_lock);
1708 break;
1709 case LINUX_PR_GET_PDEATHSIG:
1710 em = em_find(p, EMUL_DOLOCK);
1711 KASSERT(em != NULL, ("prctl: emuldata not found.\n"));
1712 pdeath_signal = em->pdeath_signal;
1713 EMUL_UNLOCK(&emul_lock);
1714 error = copyout(&pdeath_signal,
1715 (void *)(register_t)args->arg2,
1716 sizeof(pdeath_signal));
1717 break;
1718 case LINUX_PR_SET_NAME:
1719 /*
1720 * To be on the safe side we need to make sure to not
1721 * overflow the size a linux program expects. We already
1722 * do this here in the copyin, so that we don't need to
1723 * check on copyout.
1724 */
1725 max_size = MIN(sizeof(comm), sizeof(p->p_comm));
1726 error = copyinstr((void *)(register_t)args->arg2, comm,
1727 max_size, NULL);
1728
1729 /* Linux silently truncates the name if it is too long. */
1730 if (error == ENAMETOOLONG) {
1731 /*
1732 * XXX: copyinstr() isn't documented to populate the
1733 * array completely, so do a copyin() to be on the
1734 * safe side. This should be changed in case
1735 * copyinstr() is changed to guarantee this.
1736 */
1737 error = copyin((void *)(register_t)args->arg2, comm,
1738 max_size - 1);
1739 comm[max_size - 1] = '\0';
1740 }
1741 if (error)
1742 return (error);
1743
1744 PROC_LOCK(p);
1745 strlcpy(p->p_comm, comm, sizeof(p->p_comm));
1746 PROC_UNLOCK(p);
1747 break;
1748 case LINUX_PR_GET_NAME:
1749 PROC_LOCK(p);
1750 strlcpy(comm, p->p_comm, sizeof(comm));
1751 PROC_UNLOCK(p);
1752 error = copyout(comm, (void *)(register_t)args->arg2,
1753 strlen(comm) + 1);
1754 break;
1755 default:
1756 error = EINVAL;
1757 break;
1758 }
1759
1760 return (error);
1761}
1762
1763/*
1764 * Get affinity of a process.
1765 */
1766int
1767linux_sched_getaffinity(struct thread *td,
1768 struct linux_sched_getaffinity_args *args)
1769{
1770 int error;
1771 struct cpuset_getaffinity_args cga;
1772
1773#ifdef DEBUG
1774 if (ldebug(sched_getaffinity))
1775 printf(ARGS(sched_getaffinity, "%d, %d, *"), args->pid,
1776 args->len);
1777#endif
1778 if (args->len < sizeof(cpuset_t))
1779 return (EINVAL);
1780
1781 cga.level = CPU_LEVEL_WHICH;
1782 cga.which = CPU_WHICH_PID;
1783 cga.id = args->pid;
1784 cga.cpusetsize = sizeof(cpuset_t);
1785 cga.mask = (cpuset_t *) args->user_mask_ptr;
1786
1787 if ((error = cpuset_getaffinity(td, &cga)) == 0)
1788 td->td_retval[0] = sizeof(cpuset_t);
1789
1790 return (error);
1791}
1792
1793/*
1794 * Set affinity of a process.
1795 */
1796int
1797linux_sched_setaffinity(struct thread *td,
1798 struct linux_sched_setaffinity_args *args)
1799{
1800 struct cpuset_setaffinity_args csa;
1801
1802#ifdef DEBUG
1803 if (ldebug(sched_setaffinity))
1804 printf(ARGS(sched_setaffinity, "%d, %d, *"), args->pid,
1805 args->len);
1806#endif
1807 if (args->len < sizeof(cpuset_t))
1808 return (EINVAL);
1809
1810 csa.level = CPU_LEVEL_WHICH;
1811 csa.which = CPU_WHICH_PID;
1812 csa.id = args->pid;
1813 csa.cpusetsize = sizeof(cpuset_t);
1814 csa.mask = (cpuset_t *) args->user_mask_ptr;
1815
1816 return (cpuset_setaffinity(td, &csa));
1817}
| 1621}
1622
1623int
1624linux_sethostname(struct thread *td, struct linux_sethostname_args *args)
1625{
1626 int name[2];
1627
1628#ifdef DEBUG
1629 if (ldebug(sethostname))
1630 printf(ARGS(sethostname, "*, %i"), args->len);
1631#endif
1632
1633 name[0] = CTL_KERN;
1634 name[1] = KERN_HOSTNAME;
1635 return (userland_sysctl(td, name, 2, 0, 0, 0, args->hostname,
1636 args->len, 0, 0));
1637}
1638
1639int
1640linux_setdomainname(struct thread *td, struct linux_setdomainname_args *args)
1641{
1642 int name[2];
1643
1644#ifdef DEBUG
1645 if (ldebug(setdomainname))
1646 printf(ARGS(setdomainname, "*, %i"), args->len);
1647#endif
1648
1649 name[0] = CTL_KERN;
1650 name[1] = KERN_NISDOMAINNAME;
1651 return (userland_sysctl(td, name, 2, 0, 0, 0, args->name,
1652 args->len, 0, 0));
1653}
1654
1655int
1656linux_exit_group(struct thread *td, struct linux_exit_group_args *args)
1657{
1658 struct linux_emuldata *em;
1659
1660#ifdef DEBUG
1661 if (ldebug(exit_group))
1662 printf(ARGS(exit_group, "%i"), args->error_code);
1663#endif
1664
1665 em = em_find(td->td_proc, EMUL_DONTLOCK);
1666 if (em->shared->refs > 1) {
1667 EMUL_SHARED_WLOCK(&emul_shared_lock);
1668 em->shared->flags |= EMUL_SHARED_HASXSTAT;
1669 em->shared->xstat = W_EXITCODE(args->error_code, 0);
1670 EMUL_SHARED_WUNLOCK(&emul_shared_lock);
1671 if (linux_use26(td))
1672 linux_kill_threads(td, SIGKILL);
1673 }
1674
1675 /*
1676 * XXX: we should send a signal to the parent if
1677 * SIGNAL_EXIT_GROUP is set. We ignore that (temporarily?)
1678 * as it doesnt occur often.
1679 */
1680 exit1(td, W_EXITCODE(args->error_code, 0));
1681
1682 return (0);
1683}
1684
1685int
1686linux_prctl(struct thread *td, struct linux_prctl_args *args)
1687{
1688 int error = 0, max_size;
1689 struct proc *p = td->td_proc;
1690 char comm[LINUX_MAX_COMM_LEN];
1691 struct linux_emuldata *em;
1692 int pdeath_signal;
1693
1694#ifdef DEBUG
1695 if (ldebug(prctl))
1696 printf(ARGS(prctl, "%d, %d, %d, %d, %d"), args->option,
1697 args->arg2, args->arg3, args->arg4, args->arg5);
1698#endif
1699
1700 switch (args->option) {
1701 case LINUX_PR_SET_PDEATHSIG:
1702 if (!LINUX_SIG_VALID(args->arg2))
1703 return (EINVAL);
1704 em = em_find(p, EMUL_DOLOCK);
1705 KASSERT(em != NULL, ("prctl: emuldata not found.\n"));
1706 em->pdeath_signal = args->arg2;
1707 EMUL_UNLOCK(&emul_lock);
1708 break;
1709 case LINUX_PR_GET_PDEATHSIG:
1710 em = em_find(p, EMUL_DOLOCK);
1711 KASSERT(em != NULL, ("prctl: emuldata not found.\n"));
1712 pdeath_signal = em->pdeath_signal;
1713 EMUL_UNLOCK(&emul_lock);
1714 error = copyout(&pdeath_signal,
1715 (void *)(register_t)args->arg2,
1716 sizeof(pdeath_signal));
1717 break;
1718 case LINUX_PR_SET_NAME:
1719 /*
1720 * To be on the safe side we need to make sure to not
1721 * overflow the size a linux program expects. We already
1722 * do this here in the copyin, so that we don't need to
1723 * check on copyout.
1724 */
1725 max_size = MIN(sizeof(comm), sizeof(p->p_comm));
1726 error = copyinstr((void *)(register_t)args->arg2, comm,
1727 max_size, NULL);
1728
1729 /* Linux silently truncates the name if it is too long. */
1730 if (error == ENAMETOOLONG) {
1731 /*
1732 * XXX: copyinstr() isn't documented to populate the
1733 * array completely, so do a copyin() to be on the
1734 * safe side. This should be changed in case
1735 * copyinstr() is changed to guarantee this.
1736 */
1737 error = copyin((void *)(register_t)args->arg2, comm,
1738 max_size - 1);
1739 comm[max_size - 1] = '\0';
1740 }
1741 if (error)
1742 return (error);
1743
1744 PROC_LOCK(p);
1745 strlcpy(p->p_comm, comm, sizeof(p->p_comm));
1746 PROC_UNLOCK(p);
1747 break;
1748 case LINUX_PR_GET_NAME:
1749 PROC_LOCK(p);
1750 strlcpy(comm, p->p_comm, sizeof(comm));
1751 PROC_UNLOCK(p);
1752 error = copyout(comm, (void *)(register_t)args->arg2,
1753 strlen(comm) + 1);
1754 break;
1755 default:
1756 error = EINVAL;
1757 break;
1758 }
1759
1760 return (error);
1761}
1762
1763/*
1764 * Get affinity of a process.
1765 */
1766int
1767linux_sched_getaffinity(struct thread *td,
1768 struct linux_sched_getaffinity_args *args)
1769{
1770 int error;
1771 struct cpuset_getaffinity_args cga;
1772
1773#ifdef DEBUG
1774 if (ldebug(sched_getaffinity))
1775 printf(ARGS(sched_getaffinity, "%d, %d, *"), args->pid,
1776 args->len);
1777#endif
1778 if (args->len < sizeof(cpuset_t))
1779 return (EINVAL);
1780
1781 cga.level = CPU_LEVEL_WHICH;
1782 cga.which = CPU_WHICH_PID;
1783 cga.id = args->pid;
1784 cga.cpusetsize = sizeof(cpuset_t);
1785 cga.mask = (cpuset_t *) args->user_mask_ptr;
1786
1787 if ((error = cpuset_getaffinity(td, &cga)) == 0)
1788 td->td_retval[0] = sizeof(cpuset_t);
1789
1790 return (error);
1791}
1792
1793/*
1794 * Set affinity of a process.
1795 */
1796int
1797linux_sched_setaffinity(struct thread *td,
1798 struct linux_sched_setaffinity_args *args)
1799{
1800 struct cpuset_setaffinity_args csa;
1801
1802#ifdef DEBUG
1803 if (ldebug(sched_setaffinity))
1804 printf(ARGS(sched_setaffinity, "%d, %d, *"), args->pid,
1805 args->len);
1806#endif
1807 if (args->len < sizeof(cpuset_t))
1808 return (EINVAL);
1809
1810 csa.level = CPU_LEVEL_WHICH;
1811 csa.which = CPU_WHICH_PID;
1812 csa.id = args->pid;
1813 csa.cpusetsize = sizeof(cpuset_t);
1814 csa.mask = (cpuset_t *) args->user_mask_ptr;
1815
1816 return (cpuset_setaffinity(td, &csa));
1817}
|