1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 2000 Dag-Erling Smørgrav
5 * Copyright (c) 1999 Pierre Beyssac
6 * Copyright (c) 1993 Jan-Simon Pendry
7 * Copyright (c) 1993
8 * The Regents of the University of California. All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Jan-Simon Pendry.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 */
41
42 #include "opt_inet.h"
43
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/blist.h>
47 #include <sys/conf.h>
48 #include <sys/exec.h>
49 #include <sys/fcntl.h>
50 #include <sys/filedesc.h>
51 #include <sys/jail.h>
52 #include <sys/kernel.h>
53 #include <sys/limits.h>
54 #include <sys/linker.h>
55 #include <sys/lock.h>
56 #include <sys/malloc.h>
57 #include <sys/msg.h>
58 #include <sys/mutex.h>
59 #include <sys/namei.h>
60 #include <sys/proc.h>
61 #include <sys/ptrace.h>
62 #include <sys/queue.h>
63 #include <sys/resourcevar.h>
64 #include <sys/resource.h>
65 #include <sys/sbuf.h>
66 #include <sys/sem.h>
67 #include <sys/shm.h>
68 #include <sys/smp.h>
69 #include <sys/socket.h>
70 #include <sys/syscallsubr.h>
71 #include <sys/sysctl.h>
72 #include <sys/sysent.h>
73 #include <sys/time.h>
74 #include <sys/tty.h>
75 #include <sys/user.h>
76 #include <sys/uuid.h>
77 #include <sys/vmmeter.h>
78 #include <sys/vnode.h>
79 #include <sys/bus.h>
80 #include <sys/uio.h>
81
82 #include <net/if.h>
83 #include <net/if_var.h>
84 #include <net/if_types.h>
85
86 #include <net/route.h>
87 #include <net/route/nhop.h>
88 #include <net/route/route_ctl.h>
89
90 #include <vm/vm.h>
91 #include <vm/vm_extern.h>
92 #include <vm/pmap.h>
93 #include <vm/vm_map.h>
94 #include <vm/vm_param.h>
95 #include <vm/vm_object.h>
96 #include <vm/swap_pager.h>
97
98 #include <machine/clock.h>
99
100 #include <geom/geom.h>
101 #include <geom/geom_int.h>
102
103 #if defined(__i386__) || defined(__amd64__)
104 #include <machine/cputypes.h>
105 #include <machine/md_var.h>
106 #endif /* __i386__ || __amd64__ */
107
108 #include <compat/linux/linux.h>
109 #include <compat/linux/linux_common.h>
110 #include <compat/linux/linux_emul.h>
111 #include <compat/linux/linux_mib.h>
112 #include <compat/linux/linux_misc.h>
113 #include <compat/linux/linux_util.h>
114 #include <fs/pseudofs/pseudofs.h>
115 #include <fs/procfs/procfs.h>
116
117 /*
118 * Various conversion macros
119 */
120 #define T2J(x) ((long)(((x) * 100ULL) / (stathz ? stathz : hz))) /* ticks to jiffies */
121 #define T2CS(x) ((unsigned long)(((x) * 100ULL) / (stathz ? stathz : hz))) /* ticks to centiseconds */
122 #define T2S(x) ((x) / (stathz ? stathz : hz)) /* ticks to seconds */
123 #define B2K(x) ((x) >> 10) /* bytes to kbytes */
124 #define B2P(x) ((x) >> PAGE_SHIFT) /* bytes to pages */
125 #define P2B(x) ((x) << PAGE_SHIFT) /* pages to bytes */
126 #define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* pages to kbytes */
127 #define TV2J(x) ((x)->tv_sec * 100UL + (x)->tv_usec / 10000)
128
129 /**
130 * @brief Mapping of ki_stat in struct kinfo_proc to the linux state
131 *
132 * The linux procfs state field displays one of the characters RSDZTW to
133 * denote running, sleeping in an interruptible wait, waiting in an
134 * uninterruptible disk sleep, a zombie process, process is being traced
135 * or stopped, or process is paging respectively.
136 *
137 * Our struct kinfo_proc contains the variable ki_stat which contains a
138 * value out of SIDL, SRUN, SSLEEP, SSTOP, SZOMB, SWAIT and SLOCK.
139 *
140 * This character array is used with ki_stati-1 as an index and tries to
141 * map our states to suitable linux states.
142 */
143 static char linux_state[] = "RRSTZDD";
144
145 /*
146 * Filler function for proc/meminfo
147 */
148 static int
linprocfs_domeminfo(PFS_FILL_ARGS)149 linprocfs_domeminfo(PFS_FILL_ARGS)
150 {
151 unsigned long memtotal; /* total memory in bytes */
152 unsigned long memfree; /* free memory in bytes */
153 unsigned long cached; /* page cache */
154 unsigned long buffers; /* buffer cache */
155 unsigned long long swaptotal; /* total swap space in bytes */
156 unsigned long long swapused; /* used swap space in bytes */
157 unsigned long long swapfree; /* free swap space in bytes */
158 size_t sz;
159 int error, i, j;
160
161 memtotal = physmem * PAGE_SIZE;
162 memfree = (unsigned long)vm_free_count() * PAGE_SIZE;
163 swap_pager_status(&i, &j);
164 swaptotal = (unsigned long long)i * PAGE_SIZE;
165 swapused = (unsigned long long)j * PAGE_SIZE;
166 swapfree = swaptotal - swapused;
167
168 /*
169 * This value may exclude wired pages, but we have no good way of
170 * accounting for that.
171 */
172 cached =
173 (vm_active_count() + vm_inactive_count() + vm_laundry_count()) *
174 PAGE_SIZE;
175
176 sz = sizeof(buffers);
177 error = kernel_sysctlbyname(curthread, "vfs.bufspace", &buffers, &sz,
178 NULL, 0, 0, 0);
179 if (error != 0)
180 buffers = 0;
181
182 sbuf_printf(sb,
183 "MemTotal: %9lu kB\n"
184 "MemFree: %9lu kB\n"
185 "Buffers: %9lu kB\n"
186 "Cached: %9lu kB\n"
187 "SwapTotal:%9llu kB\n"
188 "SwapFree: %9llu kB\n",
189 B2K(memtotal), B2K(memfree), B2K(buffers),
190 B2K(cached), B2K(swaptotal), B2K(swapfree));
191
192 return (0);
193 }
194
195 #if defined(__i386__) || defined(__amd64__)
196 /*
197 * Filler function for proc/cpuinfo (i386 & amd64 version)
198 */
199 static int
linprocfs_docpuinfo(PFS_FILL_ARGS)200 linprocfs_docpuinfo(PFS_FILL_ARGS)
201 {
202 uint64_t freq;
203 u_int cache_size[4];
204 u_int regs[4] = { 0 };
205 int fqmhz, fqkhz;
206 int i, j;
207
208 /*
209 * We default the flags to include all non-conflicting flags,
210 * and the Intel versions of conflicting flags.
211 */
212 static char *cpu_feature_names[] = {
213 /* 0 */ "fpu", "vme", "de", "pse",
214 /* 4 */ "tsc", "msr", "pae", "mce",
215 /* 8 */ "cx8", "apic", "", "sep",
216 /* 12 */ "mtrr", "pge", "mca", "cmov",
217 /* 16 */ "pat", "pse36", "pn", "clflush",
218 /* 20 */ "", "dts", "acpi", "mmx",
219 /* 24 */ "fxsr", "sse", "sse2", "ss",
220 /* 28 */ "ht", "tm", "ia64", "pbe"
221 };
222
223 static char *amd_feature_names[] = {
224 /* 0 */ "", "", "", "",
225 /* 4 */ "", "", "", "",
226 /* 8 */ "", "", "", "syscall",
227 /* 12 */ "", "", "", "",
228 /* 16 */ "", "", "", "mp",
229 /* 20 */ "nx", "", "mmxext", "",
230 /* 24 */ "", "fxsr_opt", "pdpe1gb", "rdtscp",
231 /* 28 */ "", "lm", "3dnowext", "3dnow"
232 };
233
234 static char *cpu_feature2_names[] = {
235 /* 0 */ "pni", "pclmulqdq", "dtes64", "monitor",
236 /* 4 */ "ds_cpl", "vmx", "smx", "est",
237 /* 8 */ "tm2", "ssse3", "cid", "sdbg",
238 /* 12 */ "fma", "cx16", "xtpr", "pdcm",
239 /* 16 */ "", "pcid", "dca", "sse4_1",
240 /* 20 */ "sse4_2", "x2apic", "movbe", "popcnt",
241 /* 24 */ "tsc_deadline_timer", "aes", "xsave", "",
242 /* 28 */ "avx", "f16c", "rdrand", "hypervisor"
243 };
244
245 static char *amd_feature2_names[] = {
246 /* 0 */ "lahf_lm", "cmp_legacy", "svm", "extapic",
247 /* 4 */ "cr8_legacy", "abm", "sse4a", "misalignsse",
248 /* 8 */ "3dnowprefetch", "osvw", "ibs", "xop",
249 /* 12 */ "skinit", "wdt", "", "lwp",
250 /* 16 */ "fma4", "tce", "", "nodeid_msr",
251 /* 20 */ "", "tbm", "topoext", "perfctr_core",
252 /* 24 */ "perfctr_nb", "", "bpext", "ptsc",
253 /* 28 */ "perfctr_llc", "mwaitx", "", ""
254 };
255
256 static char *cpu_stdext_feature_names[] = {
257 /* 0 */ "fsgsbase", "tsc_adjust", "sgx", "bmi1",
258 /* 4 */ "hle", "avx2", "", "smep",
259 /* 8 */ "bmi2", "erms", "invpcid", "rtm",
260 /* 12 */ "cqm", "", "mpx", "rdt_a",
261 /* 16 */ "avx512f", "avx512dq", "rdseed", "adx",
262 /* 20 */ "smap", "avx512ifma", "", "clflushopt",
263 /* 24 */ "clwb", "intel_pt", "avx512pf", "avx512er",
264 /* 28 */ "avx512cd", "sha_ni", "avx512bw", "avx512vl"
265 };
266
267 static char *cpu_stdext_feature2_names[] = {
268 /* 0 */ "prefetchwt1", "avx512vbmi", "umip", "pku",
269 /* 4 */ "ospke", "waitpkg", "avx512_vbmi2", "",
270 /* 8 */ "gfni", "vaes", "vpclmulqdq", "avx512_vnni",
271 /* 12 */ "avx512_bitalg", "", "avx512_vpopcntdq", "",
272 /* 16 */ "", "", "", "",
273 /* 20 */ "", "", "rdpid", "",
274 /* 24 */ "", "cldemote", "", "movdiri",
275 /* 28 */ "movdir64b", "enqcmd", "sgx_lc", ""
276 };
277
278 static char *cpu_stdext_feature3_names[] = {
279 /* 0 */ "", "", "avx512_4vnniw", "avx512_4fmaps",
280 /* 4 */ "fsrm", "", "", "",
281 /* 8 */ "avx512_vp2intersect", "", "md_clear", "",
282 /* 12 */ "", "", "", "",
283 /* 16 */ "", "", "pconfig", "",
284 /* 20 */ "", "", "", "",
285 /* 24 */ "", "", "ibrs", "stibp",
286 /* 28 */ "flush_l1d", "arch_capabilities", "core_capabilities", "ssbd"
287 };
288
289 static char *cpu_stdext_feature_l1_names[] = {
290 /* 0 */ "xsaveopt", "xsavec", "xgetbv1", "xsaves",
291 /* 4 */ "xfd"
292 };
293
294 static char *power_flags[] = {
295 "ts", "fid", "vid",
296 "ttp", "tm", "stc",
297 "100mhzsteps", "hwpstate", "",
298 "cpb", "eff_freq_ro", "proc_feedback",
299 "acc_power",
300 };
301
302 #ifdef __i386__
303 switch (cpu_vendor_id) {
304 case CPU_VENDOR_AMD:
305 if (cpu_class < CPUCLASS_686)
306 cpu_feature_names[16] = "fcmov";
307 break;
308 case CPU_VENDOR_CYRIX:
309 cpu_feature_names[24] = "cxmmx";
310 break;
311 }
312 #endif
313 if (cpu_exthigh >= 0x80000006)
314 do_cpuid(0x80000006, cache_size);
315 else
316 memset(cache_size, 0, sizeof(cache_size));
317 for (i = 0; i < mp_ncpus; ++i) {
318 fqmhz = 0;
319 fqkhz = 0;
320 freq = atomic_load_acq_64(&tsc_freq);
321 if (freq != 0) {
322 fqmhz = (freq + 4999) / 1000000;
323 fqkhz = ((freq + 4999) / 10000) % 100;
324 }
325 sbuf_printf(sb,
326 "processor\t: %d\n"
327 "vendor_id\t: %.20s\n"
328 "cpu family\t: %u\n"
329 "model\t\t: %u\n"
330 "model name\t: %s\n"
331 "stepping\t: %u\n"
332 "cpu MHz\t\t: %d.%02d\n"
333 "cache size\t: %d KB\n"
334 "physical id\t: %d\n"
335 "siblings\t: %d\n"
336 "core id\t\t: %d\n"
337 "cpu cores\t: %d\n"
338 "apicid\t\t: %d\n"
339 "initial apicid\t: %d\n"
340 "fpu\t\t: %s\n"
341 "fpu_exception\t: %s\n"
342 "cpuid level\t: %d\n"
343 "wp\t\t: %s\n",
344 i, cpu_vendor, CPUID_TO_FAMILY(cpu_id),
345 CPUID_TO_MODEL(cpu_id), cpu_model, cpu_id & CPUID_STEPPING,
346 fqmhz, fqkhz,
347 (cache_size[2] >> 16), 0, mp_ncpus, i, mp_ncpus,
348 i, i, /*cpu_id & CPUID_LOCAL_APIC_ID ??*/
349 (cpu_feature & CPUID_FPU) ? "yes" : "no", "yes",
350 CPUID_TO_FAMILY(cpu_id), "yes");
351 sbuf_cat(sb, "flags\t\t:");
352 for (j = 0; j < nitems(cpu_feature_names); j++)
353 if (cpu_feature & (1 << j) &&
354 cpu_feature_names[j][0] != '\0')
355 sbuf_printf(sb, " %s", cpu_feature_names[j]);
356 for (j = 0; j < nitems(amd_feature_names); j++)
357 if (amd_feature & (1 << j) &&
358 amd_feature_names[j][0] != '\0')
359 sbuf_printf(sb, " %s", amd_feature_names[j]);
360 for (j = 0; j < nitems(cpu_feature2_names); j++)
361 if (cpu_feature2 & (1 << j) &&
362 cpu_feature2_names[j][0] != '\0')
363 sbuf_printf(sb, " %s", cpu_feature2_names[j]);
364 for (j = 0; j < nitems(amd_feature2_names); j++)
365 if (amd_feature2 & (1 << j) &&
366 amd_feature2_names[j][0] != '\0')
367 sbuf_printf(sb, " %s", amd_feature2_names[j]);
368 for (j = 0; j < nitems(cpu_stdext_feature_names); j++)
369 if (cpu_stdext_feature & (1 << j) &&
370 cpu_stdext_feature_names[j][0] != '\0')
371 sbuf_printf(sb, " %s",
372 cpu_stdext_feature_names[j]);
373 if (tsc_is_invariant)
374 sbuf_cat(sb, " constant_tsc");
375 for (j = 0; j < nitems(cpu_stdext_feature2_names); j++)
376 if (cpu_stdext_feature2 & (1 << j) &&
377 cpu_stdext_feature2_names[j][0] != '\0')
378 sbuf_printf(sb, " %s",
379 cpu_stdext_feature2_names[j]);
380 for (j = 0; j < nitems(cpu_stdext_feature3_names); j++)
381 if (cpu_stdext_feature3 & (1 << j) &&
382 cpu_stdext_feature3_names[j][0] != '\0')
383 sbuf_printf(sb, " %s",
384 cpu_stdext_feature3_names[j]);
385 if ((cpu_feature2 & CPUID2_XSAVE) != 0) {
386 cpuid_count(0xd, 0x1, regs);
387 for (j = 0; j < nitems(cpu_stdext_feature_l1_names); j++)
388 if (regs[0] & (1 << j) &&
389 cpu_stdext_feature_l1_names[j][0] != '\0')
390 sbuf_printf(sb, " %s",
391 cpu_stdext_feature_l1_names[j]);
392 }
393 sbuf_cat(sb, "\n");
394 sbuf_printf(sb,
395 "bugs\t\t: %s\n"
396 "bogomips\t: %d.%02d\n"
397 "clflush size\t: %d\n"
398 "cache_alignment\t: %d\n"
399 "address sizes\t: %d bits physical, %d bits virtual\n",
400 #if defined(I586_CPU) && !defined(NO_F00F_HACK)
401 (has_f00f_bug) ? "Intel F00F" : "",
402 #else
403 "",
404 #endif
405 fqmhz * 2, fqkhz,
406 cpu_clflush_line_size, cpu_clflush_line_size,
407 cpu_maxphyaddr,
408 (cpu_maxphyaddr > 32) ? 48 : 0);
409 sbuf_cat(sb, "power management: ");
410 for (j = 0; j < nitems(power_flags); j++)
411 if (amd_pminfo & (1 << j))
412 sbuf_printf(sb, " %s", power_flags[j]);
413 sbuf_cat(sb, "\n\n");
414
415 /* XXX per-cpu vendor / class / model / id? */
416 }
417 sbuf_cat(sb, "\n");
418
419 return (0);
420 }
421 #else
422 /* ARM64TODO: implement non-stubbed linprocfs_docpuinfo */
423 static int
linprocfs_docpuinfo(PFS_FILL_ARGS)424 linprocfs_docpuinfo(PFS_FILL_ARGS)
425 {
426 int i;
427
428 for (i = 0; i < mp_ncpus; ++i) {
429 sbuf_printf(sb,
430 "processor\t: %d\n"
431 "BogoMIPS\t: %d.%02d\n",
432 i, 0, 0);
433 sbuf_cat(sb, "Features\t: ");
434 sbuf_cat(sb, "\n");
435 sbuf_printf(sb,
436 "CPU implementer\t: \n"
437 "CPU architecture: \n"
438 "CPU variant\t: 0x%x\n"
439 "CPU part\t: 0x%x\n"
440 "CPU revision\t: %d\n",
441 0, 0, 0);
442 sbuf_cat(sb, "\n");
443 }
444
445 return (0);
446 }
447 #endif /* __i386__ || __amd64__ */
448
449 static int
_mtab_helper(const struct pfs_node * pn,const struct statfs * sp,const char ** mntfrom,const char ** mntto,const char ** fstype)450 _mtab_helper(const struct pfs_node *pn, const struct statfs *sp,
451 const char **mntfrom, const char **mntto, const char **fstype)
452 {
453 /* determine device name */
454 *mntfrom = sp->f_mntfromname;
455
456 /* determine mount point */
457 *mntto = sp->f_mntonname;
458
459 /* determine fs type */
460 *fstype = sp->f_fstypename;
461 if (strcmp(*fstype, pn->pn_info->pi_name) == 0)
462 *mntfrom = *fstype = "proc";
463 else if (strcmp(*fstype, "procfs") == 0)
464 return (ECANCELED);
465
466 if (strcmp(*fstype, "autofs") == 0) {
467 /*
468 * FreeBSD uses eg "map -hosts", whereas Linux
469 * expects just "-hosts".
470 */
471 if (strncmp(*mntfrom, "map ", 4) == 0)
472 *mntfrom += 4;
473 }
474
475 if (strcmp(*fstype, "linsysfs") == 0) {
476 *mntfrom = *fstype = "sysfs";
477 } else {
478 /* For Linux msdosfs is called vfat */
479 if (strcmp(*fstype, "msdosfs") == 0)
480 *fstype = "vfat";
481 }
482 return (0);
483 }
484
485 static void
_sbuf_mntoptions_helper(struct sbuf * sb,uint64_t f_flags)486 _sbuf_mntoptions_helper(struct sbuf *sb, uint64_t f_flags)
487 {
488 sbuf_cat(sb, (f_flags & MNT_RDONLY) ? "ro" : "rw");
489 #define ADD_OPTION(opt, name) \
490 if (f_flags & (opt)) sbuf_cat(sb, "," name);
491 ADD_OPTION(MNT_SYNCHRONOUS, "sync");
492 ADD_OPTION(MNT_NOEXEC, "noexec");
493 ADD_OPTION(MNT_NOSUID, "nosuid");
494 ADD_OPTION(MNT_UNION, "union");
495 ADD_OPTION(MNT_ASYNC, "async");
496 ADD_OPTION(MNT_SUIDDIR, "suiddir");
497 ADD_OPTION(MNT_NOSYMFOLLOW, "nosymfollow");
498 ADD_OPTION(MNT_NOATIME, "noatime");
499 #undef ADD_OPTION
500 }
501
502 /*
503 * Filler function for proc/mtab and proc/<pid>/mounts.
504 *
505 * /proc/mtab doesn't exist in Linux' procfs, but is included here so
506 * users can symlink /compat/linux/etc/mtab to /proc/mtab
507 */
508 static int
linprocfs_domtab(PFS_FILL_ARGS)509 linprocfs_domtab(PFS_FILL_ARGS)
510 {
511 const char *mntto, *mntfrom, *fstype;
512 char *dlep, *flep;
513 struct vnode *vp;
514 struct pwd *pwd;
515 size_t lep_len;
516 int error;
517 struct statfs *buf, *sp;
518 size_t count;
519
520 /*
521 * Resolve emulation tree prefix
522 */
523 flep = NULL;
524 pwd = pwd_hold(td);
525 vp = pwd->pwd_adir;
526 error = vn_fullpath_global(vp, &dlep, &flep);
527 pwd_drop(pwd);
528 if (error != 0)
529 return (error);
530 lep_len = strlen(dlep);
531
532 buf = NULL;
533 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count,
534 UIO_SYSSPACE, MNT_WAIT);
535 if (error != 0) {
536 goto out;
537 }
538
539 for (sp = buf; count > 0; sp++, count--) {
540 error = _mtab_helper(pn, sp, &mntfrom, &mntto, &fstype);
541 if (error != 0) {
542 MPASS(error == ECANCELED);
543 continue;
544 }
545
546 /* determine mount point */
547 if (strncmp(mntto, dlep, lep_len) == 0 && mntto[lep_len] == '/')
548 mntto += lep_len;
549
550 sbuf_printf(sb, "%s %s %s ", mntfrom, mntto, fstype);
551 _sbuf_mntoptions_helper(sb, sp->f_flags);
552 /* a real Linux mtab will also show NFS options */
553 sbuf_printf(sb, " 0 0\n");
554 }
555
556 error = 0;
557 out:
558 free(buf, M_TEMP);
559 free(flep, M_TEMP);
560 return (error);
561 }
562
563 static int
linprocfs_doprocmountinfo(PFS_FILL_ARGS)564 linprocfs_doprocmountinfo(PFS_FILL_ARGS)
565 {
566 const char *mntfrom, *mntto, *fstype;
567 char *dlep, *flep;
568 struct statfs *buf, *sp;
569 size_t count, lep_len;
570 struct vnode *vp;
571 struct pwd *pwd;
572 int error;
573
574 /*
575 * Resolve emulation tree prefix
576 */
577 flep = NULL;
578 pwd = pwd_hold(td);
579 vp = pwd->pwd_adir;
580 error = vn_fullpath_global(vp, &dlep, &flep);
581 pwd_drop(pwd);
582 if (error != 0)
583 return (error);
584 lep_len = strlen(dlep);
585
586 buf = NULL;
587 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count,
588 UIO_SYSSPACE, MNT_WAIT);
589 if (error != 0)
590 goto out;
591
592 for (sp = buf; count > 0; sp++, count--) {
593 error = _mtab_helper(pn, sp, &mntfrom, &mntto, &fstype);
594 if (error != 0) {
595 MPASS(error == ECANCELED);
596 continue;
597 }
598
599 if (strncmp(mntto, dlep, lep_len) == 0 && mntto[lep_len] == '/')
600 mntto += lep_len;
601 #if 0
602 /*
603 * If the prefix is a chroot, and this mountpoint is not under
604 * the prefix, we should skip it. Leave it for now for
605 * consistency with procmtab above.
606 */
607 else
608 continue;
609 #endif
610
611 /*
612 * (1) mount id
613 *
614 * (2) parent mount id -- we don't have this cheaply, so
615 * provide a dummy value
616 *
617 * (3) major:minor -- ditto
618 *
619 * (4) root filesystem mount -- probably a namespaces thing
620 *
621 * (5) mountto path
622 */
623 sbuf_printf(sb, "%u 0 0:0 / %s ",
624 sp->f_fsid.val[0] ^ sp->f_fsid.val[1], mntto);
625 /* (6) mount options */
626 _sbuf_mntoptions_helper(sb, sp->f_flags);
627 /*
628 * (7) zero or more optional fields -- again, namespace related
629 *
630 * (8) End of variable length fields separator ("-")
631 *
632 * (9) fstype
633 *
634 * (10) mount from
635 *
636 * (11) "superblock" options -- like (6), but different
637 * semantics in Linux
638 */
639 sbuf_printf(sb, " - %s %s %s\n", fstype, mntfrom,
640 (sp->f_flags & MNT_RDONLY) ? "ro" : "rw");
641 }
642
643 error = 0;
644 out:
645 free(buf, M_TEMP);
646 free(flep, M_TEMP);
647 return (error);
648 }
649
650 /*
651 * Filler function for proc/partitions
652 */
653 static int
linprocfs_dopartitions(PFS_FILL_ARGS)654 linprocfs_dopartitions(PFS_FILL_ARGS)
655 {
656 struct g_class *cp;
657 struct g_geom *gp;
658 struct g_provider *pp;
659 int major, minor;
660
661 g_topology_lock();
662 sbuf_printf(sb, "major minor #blocks name rio rmerge rsect "
663 "ruse wio wmerge wsect wuse running use aveq\n");
664
665 LIST_FOREACH(cp, &g_classes, class) {
666 if (strcmp(cp->name, "DISK") == 0 ||
667 strcmp(cp->name, "PART") == 0)
668 LIST_FOREACH(gp, &cp->geom, geom) {
669 LIST_FOREACH(pp, &gp->provider, provider) {
670 if (linux_driver_get_major_minor(
671 pp->name, &major, &minor) != 0) {
672 major = 0;
673 minor = 0;
674 }
675 sbuf_printf(sb, "%d %d %lld %s "
676 "%d %d %d %d %d "
677 "%d %d %d %d %d %d\n",
678 major, minor,
679 (long long)pp->mediasize, pp->name,
680 0, 0, 0, 0, 0,
681 0, 0, 0, 0, 0, 0);
682 }
683 }
684 }
685 g_topology_unlock();
686
687 return (0);
688 }
689
690 /*
691 * Filler function for proc/stat
692 *
693 * Output depends on kernel version:
694 *
695 * v2.5.40 <=
696 * user nice system idle
697 * v2.5.41
698 * user nice system idle iowait
699 * v2.6.11
700 * user nice system idle iowait irq softirq steal
701 * v2.6.24
702 * user nice system idle iowait irq softirq steal guest
703 * v2.6.33 >=
704 * user nice system idle iowait irq softirq steal guest guest_nice
705 */
706 static int
linprocfs_dostat(PFS_FILL_ARGS)707 linprocfs_dostat(PFS_FILL_ARGS)
708 {
709 struct pcpu *pcpu;
710 long cp_time[CPUSTATES];
711 long *cp;
712 struct timeval boottime;
713 int i;
714 char *zero_pad;
715 bool has_intr = true;
716
717 if (linux_kernver(td) >= LINUX_KERNVER(2,6,33)) {
718 zero_pad = " 0 0 0 0\n";
719 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,24)) {
720 zero_pad = " 0 0 0\n";
721 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,11)) {
722 zero_pad = " 0 0\n";
723 } else if (linux_kernver(td) >= LINUX_KERNVER(2,5,41)) {
724 has_intr = false;
725 zero_pad = " 0\n";
726 } else {
727 has_intr = false;
728 zero_pad = "\n";
729 }
730
731 read_cpu_time(cp_time);
732 getboottime(&boottime);
733 /* Parameters common to all versions */
734 sbuf_printf(sb, "cpu %lu %lu %lu %lu",
735 T2J(cp_time[CP_USER]),
736 T2J(cp_time[CP_NICE]),
737 T2J(cp_time[CP_SYS]),
738 T2J(cp_time[CP_IDLE]));
739
740 /* Print interrupt stats if available */
741 if (has_intr) {
742 sbuf_printf(sb, " 0 %lu", T2J(cp_time[CP_INTR]));
743 }
744
745 /* Pad out remaining fields depending on version */
746 sbuf_printf(sb, "%s", zero_pad);
747
748 CPU_FOREACH(i) {
749 pcpu = pcpu_find(i);
750 cp = pcpu->pc_cp_time;
751 sbuf_printf(sb, "cpu%d %lu %lu %lu %lu", i,
752 T2J(cp[CP_USER]),
753 T2J(cp[CP_NICE]),
754 T2J(cp[CP_SYS]),
755 T2J(cp[CP_IDLE]));
756
757 if (has_intr) {
758 sbuf_printf(sb, " 0 %lu", T2J(cp[CP_INTR]));
759 }
760
761 sbuf_printf(sb, "%s", zero_pad);
762 }
763 sbuf_printf(sb,
764 "disk 0 0 0 0\n"
765 "page %ju %ju\n"
766 "swap %ju %ju\n"
767 "intr %ju\n"
768 "ctxt %ju\n"
769 "btime %lld\n",
770 (uintmax_t)VM_CNT_FETCH(v_vnodepgsin),
771 (uintmax_t)VM_CNT_FETCH(v_vnodepgsout),
772 (uintmax_t)VM_CNT_FETCH(v_swappgsin),
773 (uintmax_t)VM_CNT_FETCH(v_swappgsout),
774 (uintmax_t)VM_CNT_FETCH(v_intr),
775 (uintmax_t)VM_CNT_FETCH(v_swtch),
776 (long long)boottime.tv_sec);
777 return (0);
778 }
779
780 static int
linprocfs_doswaps(PFS_FILL_ARGS)781 linprocfs_doswaps(PFS_FILL_ARGS)
782 {
783 struct xswdev xsw;
784 uintmax_t total, used;
785 int n;
786 char devname[SPECNAMELEN + 1];
787
788 sbuf_printf(sb, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
789 for (n = 0; ; n++) {
790 if (swap_dev_info(n, &xsw, devname, sizeof(devname)) != 0)
791 break;
792 total = (uintmax_t)xsw.xsw_nblks * PAGE_SIZE / 1024;
793 used = (uintmax_t)xsw.xsw_used * PAGE_SIZE / 1024;
794
795 /*
796 * The space and not tab after the device name is on
797 * purpose. Linux does so.
798 */
799 sbuf_printf(sb, "/dev/%-34s unknown\t\t%jd\t%jd\t-1\n",
800 devname, total, used);
801 }
802 return (0);
803 }
804
805 /*
806 * Filler function for proc/uptime
807 */
808 static int
linprocfs_douptime(PFS_FILL_ARGS)809 linprocfs_douptime(PFS_FILL_ARGS)
810 {
811 long cp_time[CPUSTATES];
812 struct timeval tv;
813
814 getmicrouptime(&tv);
815 read_cpu_time(cp_time);
816 sbuf_printf(sb, "%lld.%02ld %ld.%02lu\n",
817 (long long)tv.tv_sec, tv.tv_usec / 10000,
818 T2S(cp_time[CP_IDLE] / mp_ncpus),
819 T2CS(cp_time[CP_IDLE] / mp_ncpus) % 100);
820 return (0);
821 }
822
823 /*
824 * Get OS build date
825 */
826 static void
linprocfs_osbuild(struct thread * td,struct sbuf * sb)827 linprocfs_osbuild(struct thread *td, struct sbuf *sb)
828 {
829 #if 0
830 char osbuild[256];
831 char *cp1, *cp2;
832
833 strncpy(osbuild, version, 256);
834 osbuild[255] = '\0';
835 cp1 = strstr(osbuild, "\n");
836 cp2 = strstr(osbuild, ":");
837 if (cp1 && cp2) {
838 *cp1 = *cp2 = '\0';
839 cp1 = strstr(osbuild, "#");
840 } else
841 cp1 = NULL;
842 if (cp1)
843 sbuf_printf(sb, "%s%s", cp1, cp2 + 1);
844 else
845 #endif
846 sbuf_cat(sb, "#4 Sun Dec 18 04:30:00 CET 1977");
847 }
848
849 /*
850 * Get OS builder
851 */
852 static void
linprocfs_osbuilder(struct thread * td,struct sbuf * sb)853 linprocfs_osbuilder(struct thread *td, struct sbuf *sb)
854 {
855 #if 0
856 char builder[256];
857 char *cp;
858
859 cp = strstr(version, "\n ");
860 if (cp) {
861 strncpy(builder, cp + 5, 256);
862 builder[255] = '\0';
863 cp = strstr(builder, ":");
864 if (cp)
865 *cp = '\0';
866 }
867 if (cp)
868 sbuf_cat(sb, builder);
869 else
870 #endif
871 sbuf_cat(sb, "des@freebsd.org");
872 }
873
874 /*
875 * Filler function for proc/version
876 */
877 static int
linprocfs_doversion(PFS_FILL_ARGS)878 linprocfs_doversion(PFS_FILL_ARGS)
879 {
880 char osname[LINUX_MAX_UTSNAME];
881 char osrelease[LINUX_MAX_UTSNAME];
882
883 linux_get_osname(td, osname);
884 linux_get_osrelease(td, osrelease);
885 sbuf_printf(sb, "%s version %s (", osname, osrelease);
886 linprocfs_osbuilder(td, sb);
887 sbuf_cat(sb, ") (gcc version " __VERSION__ ") ");
888 linprocfs_osbuild(td, sb);
889 sbuf_cat(sb, "\n");
890
891 return (0);
892 }
893
894 /*
895 * Filler function for proc/loadavg
896 */
897 static int
linprocfs_doloadavg(PFS_FILL_ARGS)898 linprocfs_doloadavg(PFS_FILL_ARGS)
899 {
900
901 sbuf_printf(sb,
902 "%d.%02d %d.%02d %d.%02d %d/%d %d\n",
903 (int)(averunnable.ldavg[0] / averunnable.fscale),
904 (int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100),
905 (int)(averunnable.ldavg[1] / averunnable.fscale),
906 (int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100),
907 (int)(averunnable.ldavg[2] / averunnable.fscale),
908 (int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100),
909 1, /* number of running tasks */
910 nprocs, /* number of tasks */
911 lastpid /* the last pid */
912 );
913 return (0);
914 }
915
916 static int
linprocfs_get_tty_nr(struct proc * p)917 linprocfs_get_tty_nr(struct proc *p)
918 {
919 struct session *sp;
920 const char *ttyname;
921 int error, major, minor, nr;
922
923 PROC_LOCK_ASSERT(p, MA_OWNED);
924 sx_assert(&proctree_lock, SX_LOCKED);
925
926 if ((p->p_flag & P_CONTROLT) == 0)
927 return (-1);
928
929 sp = p->p_pgrp->pg_session;
930 if (sp == NULL)
931 return (-1);
932
933 ttyname = devtoname(sp->s_ttyp->t_dev);
934 error = linux_driver_get_major_minor(ttyname, &major, &minor);
935 if (error != 0)
936 return (-1);
937
938 nr = makedev(major, minor);
939 return (nr);
940 }
941
942 /*
943 * Filler function for proc/pid/stat
944 */
945 static int
linprocfs_doprocstat(PFS_FILL_ARGS)946 linprocfs_doprocstat(PFS_FILL_ARGS)
947 {
948 struct kinfo_proc kp;
949 struct timeval boottime;
950 char state;
951 static int ratelimit = 0;
952 int tty_nr;
953 vm_offset_t startcode, startdata;
954
955 getboottime(&boottime);
956 sx_slock(&proctree_lock);
957 PROC_LOCK(p);
958 fill_kinfo_proc(p, &kp);
959 tty_nr = linprocfs_get_tty_nr(p);
960 sx_sunlock(&proctree_lock);
961 if (p->p_vmspace) {
962 startcode = (vm_offset_t)p->p_vmspace->vm_taddr;
963 startdata = (vm_offset_t)p->p_vmspace->vm_daddr;
964 } else {
965 startcode = 0;
966 startdata = 0;
967 }
968 sbuf_printf(sb, "%d", p->p_pid);
969 #define PS_ADD(name, fmt, arg) sbuf_printf(sb, " " fmt, arg)
970 PS_ADD("comm", "(%s)", p->p_comm);
971 if (kp.ki_stat > sizeof(linux_state)) {
972 state = 'R';
973
974 if (ratelimit == 0) {
975 printf("linprocfs: don't know how to handle unknown FreeBSD state %d/%zd, mapping to R\n",
976 kp.ki_stat, sizeof(linux_state));
977 ++ratelimit;
978 }
979 } else
980 state = linux_state[kp.ki_stat - 1];
981 PS_ADD("state", "%c", state);
982 PS_ADD("ppid", "%d", p->p_pptr ? p->p_pptr->p_pid : 0);
983 PS_ADD("pgrp", "%d", p->p_pgid);
984 PS_ADD("session", "%d", p->p_session->s_sid);
985 PROC_UNLOCK(p);
986 PS_ADD("tty", "%d", tty_nr);
987 PS_ADD("tpgid", "%d", kp.ki_tpgid);
988 PS_ADD("flags", "%u", 0); /* XXX */
989 PS_ADD("minflt", "%lu", kp.ki_rusage.ru_minflt);
990 PS_ADD("cminflt", "%lu", kp.ki_rusage_ch.ru_minflt);
991 PS_ADD("majflt", "%lu", kp.ki_rusage.ru_majflt);
992 PS_ADD("cmajflt", "%lu", kp.ki_rusage_ch.ru_majflt);
993 PS_ADD("utime", "%ld", TV2J(&kp.ki_rusage.ru_utime));
994 PS_ADD("stime", "%ld", TV2J(&kp.ki_rusage.ru_stime));
995 PS_ADD("cutime", "%ld", TV2J(&kp.ki_rusage_ch.ru_utime));
996 PS_ADD("cstime", "%ld", TV2J(&kp.ki_rusage_ch.ru_stime));
997 PS_ADD("priority", "%d", kp.ki_pri.pri_user);
998 PS_ADD("nice", "%d", kp.ki_nice); /* 19 (nicest) to -19 */
999 PS_ADD("0", "%d", 0); /* removed field */
1000 PS_ADD("itrealvalue", "%d", 0); /* XXX */
1001 PS_ADD("starttime", "%lu", TV2J(&kp.ki_start) - TV2J(&boottime));
1002 PS_ADD("vsize", "%ju", (uintmax_t)kp.ki_size);
1003 PS_ADD("rss", "%ju", (uintmax_t)kp.ki_rssize);
1004 PS_ADD("rlim", "%lu", kp.ki_rusage.ru_maxrss);
1005 PS_ADD("startcode", "%ju", (uintmax_t)startcode);
1006 PS_ADD("endcode", "%ju", (uintmax_t)startdata);
1007 PS_ADD("startstack", "%u", 0); /* XXX */
1008 PS_ADD("kstkesp", "%u", 0); /* XXX */
1009 PS_ADD("kstkeip", "%u", 0); /* XXX */
1010 PS_ADD("signal", "%u", 0); /* XXX */
1011 PS_ADD("blocked", "%u", 0); /* XXX */
1012 PS_ADD("sigignore", "%u", 0); /* XXX */
1013 PS_ADD("sigcatch", "%u", 0); /* XXX */
1014 PS_ADD("wchan", "%u", 0); /* XXX */
1015 PS_ADD("nswap", "%lu", kp.ki_rusage.ru_nswap);
1016 PS_ADD("cnswap", "%lu", kp.ki_rusage_ch.ru_nswap);
1017 PS_ADD("exitsignal", "%d", 0); /* XXX */
1018 PS_ADD("processor", "%u", kp.ki_lastcpu);
1019 PS_ADD("rt_priority", "%u", 0); /* XXX */ /* >= 2.5.19 */
1020 PS_ADD("policy", "%u", kp.ki_pri.pri_class); /* >= 2.5.19 */
1021 #undef PS_ADD
1022 sbuf_putc(sb, '\n');
1023
1024 return (0);
1025 }
1026
1027 /*
1028 * Filler function for proc/pid/statm
1029 */
1030 static int
linprocfs_doprocstatm(PFS_FILL_ARGS)1031 linprocfs_doprocstatm(PFS_FILL_ARGS)
1032 {
1033 struct kinfo_proc kp;
1034 segsz_t lsize;
1035
1036 sx_slock(&proctree_lock);
1037 PROC_LOCK(p);
1038 fill_kinfo_proc(p, &kp);
1039 PROC_UNLOCK(p);
1040 sx_sunlock(&proctree_lock);
1041
1042 /*
1043 * See comments in linprocfs_doprocstatus() regarding the
1044 * computation of lsize.
1045 */
1046 /* size resident share trs drs lrs dt */
1047 sbuf_printf(sb, "%ju ", B2P((uintmax_t)kp.ki_size));
1048 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_rssize);
1049 sbuf_printf(sb, "%ju ", (uintmax_t)0); /* XXX */
1050 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_tsize);
1051 sbuf_printf(sb, "%ju ", (uintmax_t)(kp.ki_dsize + kp.ki_ssize));
1052 lsize = B2P(kp.ki_size) - kp.ki_dsize -
1053 kp.ki_ssize - kp.ki_tsize - 1;
1054 sbuf_printf(sb, "%ju ", (uintmax_t)lsize);
1055 sbuf_printf(sb, "%ju\n", (uintmax_t)0); /* XXX */
1056
1057 return (0);
1058 }
1059
1060 /*
1061 * Filler function for proc/pid/status
1062 */
1063 static int
linprocfs_doprocstatus(PFS_FILL_ARGS)1064 linprocfs_doprocstatus(PFS_FILL_ARGS)
1065 {
1066 struct kinfo_proc kp;
1067 char *state;
1068 segsz_t lsize;
1069 struct thread *td2;
1070 struct sigacts *ps;
1071 l_sigset_t siglist, sigignore, sigcatch;
1072 int i;
1073
1074 sx_slock(&proctree_lock);
1075 PROC_LOCK(p);
1076 td2 = FIRST_THREAD_IN_PROC(p);
1077
1078 if (P_SHOULDSTOP(p)) {
1079 state = "T (stopped)";
1080 } else {
1081 switch(p->p_state) {
1082 case PRS_NEW:
1083 state = "I (idle)";
1084 break;
1085 case PRS_NORMAL:
1086 if (p->p_flag & P_WEXIT) {
1087 state = "X (exiting)";
1088 break;
1089 }
1090 switch(TD_GET_STATE(td2)) {
1091 case TDS_INHIBITED:
1092 state = "S (sleeping)";
1093 break;
1094 case TDS_RUNQ:
1095 case TDS_RUNNING:
1096 state = "R (running)";
1097 break;
1098 default:
1099 state = "? (unknown)";
1100 break;
1101 }
1102 break;
1103 case PRS_ZOMBIE:
1104 state = "Z (zombie)";
1105 break;
1106 default:
1107 state = "? (unknown)";
1108 break;
1109 }
1110 }
1111
1112 fill_kinfo_proc(p, &kp);
1113 sx_sunlock(&proctree_lock);
1114
1115 sbuf_printf(sb, "Name:\t%s\n", p->p_comm); /* XXX escape */
1116 sbuf_printf(sb, "State:\t%s\n", state);
1117
1118 /*
1119 * Credentials
1120 */
1121 sbuf_printf(sb, "Tgid:\t%d\n", p->p_pid);
1122 sbuf_printf(sb, "Pid:\t%d\n", p->p_pid);
1123 sbuf_printf(sb, "PPid:\t%d\n", kp.ki_ppid );
1124 sbuf_printf(sb, "TracerPid:\t%d\n", kp.ki_tracer );
1125 sbuf_printf(sb, "Uid:\t%d\t%d\t%d\t%d\n", p->p_ucred->cr_ruid,
1126 p->p_ucred->cr_uid,
1127 p->p_ucred->cr_svuid,
1128 /* FreeBSD doesn't have fsuid */
1129 p->p_ucred->cr_uid);
1130 sbuf_printf(sb, "Gid:\t%d\t%d\t%d\t%d\n", p->p_ucred->cr_rgid,
1131 p->p_ucred->cr_gid,
1132 p->p_ucred->cr_svgid,
1133 /* FreeBSD doesn't have fsgid */
1134 p->p_ucred->cr_gid);
1135 sbuf_cat(sb, "Groups:\t");
1136 for (i = 0; i < p->p_ucred->cr_ngroups; i++)
1137 sbuf_printf(sb, "%d ", p->p_ucred->cr_groups[i]);
1138 PROC_UNLOCK(p);
1139 sbuf_putc(sb, '\n');
1140
1141 /*
1142 * Memory
1143 *
1144 * While our approximation of VmLib may not be accurate (I
1145 * don't know of a simple way to verify it, and I'm not sure
1146 * it has much meaning anyway), I believe it's good enough.
1147 *
1148 * The same code that could (I think) accurately compute VmLib
1149 * could also compute VmLck, but I don't really care enough to
1150 * implement it. Submissions are welcome.
1151 */
1152 sbuf_printf(sb, "VmSize:\t%8ju kB\n", B2K((uintmax_t)kp.ki_size));
1153 sbuf_printf(sb, "VmLck:\t%8u kB\n", P2K(0)); /* XXX */
1154 sbuf_printf(sb, "VmRSS:\t%8ju kB\n", P2K((uintmax_t)kp.ki_rssize));
1155 sbuf_printf(sb, "VmData:\t%8ju kB\n", P2K((uintmax_t)kp.ki_dsize));
1156 sbuf_printf(sb, "VmStk:\t%8ju kB\n", P2K((uintmax_t)kp.ki_ssize));
1157 sbuf_printf(sb, "VmExe:\t%8ju kB\n", P2K((uintmax_t)kp.ki_tsize));
1158 lsize = B2P(kp.ki_size) - kp.ki_dsize -
1159 kp.ki_ssize - kp.ki_tsize - 1;
1160 sbuf_printf(sb, "VmLib:\t%8ju kB\n", P2K((uintmax_t)lsize));
1161
1162 /*
1163 * Signal masks
1164 */
1165 PROC_LOCK(p);
1166 bsd_to_linux_sigset(&p->p_siglist, &siglist);
1167 ps = p->p_sigacts;
1168 mtx_lock(&ps->ps_mtx);
1169 bsd_to_linux_sigset(&ps->ps_sigignore, &sigignore);
1170 bsd_to_linux_sigset(&ps->ps_sigcatch, &sigcatch);
1171 mtx_unlock(&ps->ps_mtx);
1172 PROC_UNLOCK(p);
1173
1174 sbuf_printf(sb, "SigPnd:\t%016jx\n", siglist.__mask);
1175 /*
1176 * XXX. SigBlk - target thread's signal mask, td_sigmask.
1177 * To implement SigBlk pseudofs should support proc/tid dir entries.
1178 */
1179 sbuf_printf(sb, "SigBlk:\t%016x\n", 0);
1180 sbuf_printf(sb, "SigIgn:\t%016jx\n", sigignore.__mask);
1181 sbuf_printf(sb, "SigCgt:\t%016jx\n", sigcatch.__mask);
1182
1183 /*
1184 * Linux also prints the capability masks, but we don't have
1185 * capabilities yet, and when we do get them they're likely to
1186 * be meaningless to Linux programs, so we lie. XXX
1187 */
1188 sbuf_printf(sb, "CapInh:\t%016x\n", 0);
1189 sbuf_printf(sb, "CapPrm:\t%016x\n", 0);
1190 sbuf_printf(sb, "CapEff:\t%016x\n", 0);
1191
1192 return (0);
1193 }
1194
1195 /*
1196 * Filler function for proc/pid/cwd
1197 */
1198 static int
linprocfs_doproccwd(PFS_FILL_ARGS)1199 linprocfs_doproccwd(PFS_FILL_ARGS)
1200 {
1201 struct pwd *pwd;
1202 char *fullpath = "unknown";
1203 char *freepath = NULL;
1204
1205 pwd = pwd_hold_proc(p);
1206 vn_fullpath(pwd->pwd_cdir, &fullpath, &freepath);
1207 sbuf_printf(sb, "%s", fullpath);
1208 if (freepath)
1209 free(freepath, M_TEMP);
1210 pwd_drop(pwd);
1211 return (0);
1212 }
1213
1214 /*
1215 * Filler function for proc/pid/root
1216 */
1217 static int
linprocfs_doprocroot(PFS_FILL_ARGS)1218 linprocfs_doprocroot(PFS_FILL_ARGS)
1219 {
1220 struct pwd *pwd;
1221 struct vnode *vp;
1222 char *fullpath = "unknown";
1223 char *freepath = NULL;
1224
1225 pwd = pwd_hold_proc(p);
1226 vp = jailed(p->p_ucred) ? pwd->pwd_jdir : pwd->pwd_rdir;
1227 vn_fullpath(vp, &fullpath, &freepath);
1228 sbuf_printf(sb, "%s", fullpath);
1229 if (freepath)
1230 free(freepath, M_TEMP);
1231 pwd_drop(pwd);
1232 return (0);
1233 }
1234
1235 /*
1236 * Filler function for proc/pid/cmdline
1237 */
1238 static int
linprocfs_doproccmdline(PFS_FILL_ARGS)1239 linprocfs_doproccmdline(PFS_FILL_ARGS)
1240 {
1241 int ret;
1242
1243 PROC_LOCK(p);
1244 if ((ret = p_cansee(td, p)) != 0) {
1245 PROC_UNLOCK(p);
1246 return (ret);
1247 }
1248
1249 /*
1250 * Mimic linux behavior and pass only processes with usermode
1251 * address space as valid. Return zero silently otherwize.
1252 */
1253 if (p->p_vmspace == &vmspace0) {
1254 PROC_UNLOCK(p);
1255 return (0);
1256 }
1257 if (p->p_args != NULL) {
1258 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length);
1259 PROC_UNLOCK(p);
1260 return (0);
1261 }
1262
1263 if ((p->p_flag & P_SYSTEM) != 0) {
1264 PROC_UNLOCK(p);
1265 return (0);
1266 }
1267
1268 PROC_UNLOCK(p);
1269
1270 ret = proc_getargv(td, p, sb);
1271 return (ret);
1272 }
1273
1274 /*
1275 * Filler function for proc/pid/environ
1276 */
1277 static int
linprocfs_doprocenviron(PFS_FILL_ARGS)1278 linprocfs_doprocenviron(PFS_FILL_ARGS)
1279 {
1280
1281 /*
1282 * Mimic linux behavior and pass only processes with usermode
1283 * address space as valid. Return zero silently otherwize.
1284 */
1285 if (p->p_vmspace == &vmspace0)
1286 return (0);
1287
1288 return (proc_getenvv(td, p, sb));
1289 }
1290
1291 static char l32_map_str[] = "%08lx-%08lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n";
1292 static char l64_map_str[] = "%016lx-%016lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n";
1293 static char vdso_str[] = " [vdso]";
1294 static char stack_str[] = " [stack]";
1295
1296 /*
1297 * Filler function for proc/pid/maps
1298 */
1299 static int
linprocfs_doprocmaps(PFS_FILL_ARGS)1300 linprocfs_doprocmaps(PFS_FILL_ARGS)
1301 {
1302 struct vmspace *vm;
1303 vm_map_t map;
1304 vm_map_entry_t entry, tmp_entry;
1305 vm_object_t obj, tobj, lobj;
1306 vm_offset_t e_start, e_end;
1307 vm_ooffset_t off;
1308 vm_prot_t e_prot;
1309 unsigned int last_timestamp;
1310 char *name = "", *freename = NULL;
1311 const char *l_map_str;
1312 ino_t ino;
1313 int error;
1314 struct vnode *vp;
1315 struct vattr vat;
1316 bool private;
1317
1318 PROC_LOCK(p);
1319 error = p_candebug(td, p);
1320 PROC_UNLOCK(p);
1321 if (error)
1322 return (error);
1323
1324 if (uio->uio_rw != UIO_READ)
1325 return (EOPNOTSUPP);
1326
1327 error = 0;
1328 vm = vmspace_acquire_ref(p);
1329 if (vm == NULL)
1330 return (ESRCH);
1331
1332 if (SV_CURPROC_FLAG(SV_LP64))
1333 l_map_str = l64_map_str;
1334 else
1335 l_map_str = l32_map_str;
1336 map = &vm->vm_map;
1337 vm_map_lock_read(map);
1338 VM_MAP_ENTRY_FOREACH(entry, map) {
1339 name = "";
1340 freename = NULL;
1341 /*
1342 * Skip printing of the guard page of the stack region, as
1343 * it confuses glibc pthread_getattr_np() method, where both
1344 * the base address and size of the stack of the initial thread
1345 * are calculated.
1346 */
1347 if ((entry->eflags & (MAP_ENTRY_IS_SUB_MAP | MAP_ENTRY_GUARD)) != 0)
1348 continue;
1349 e_prot = entry->protection;
1350 e_start = entry->start;
1351 e_end = entry->end;
1352 obj = entry->object.vm_object;
1353 off = entry->offset;
1354 for (lobj = tobj = obj; tobj != NULL;
1355 lobj = tobj, tobj = tobj->backing_object) {
1356 VM_OBJECT_RLOCK(tobj);
1357 off += lobj->backing_object_offset;
1358 if (lobj != obj)
1359 VM_OBJECT_RUNLOCK(lobj);
1360 }
1361 private = (entry->eflags & MAP_ENTRY_COW) != 0 || obj == NULL ||
1362 (obj->flags & OBJ_ANON) != 0;
1363 last_timestamp = map->timestamp;
1364 vm_map_unlock_read(map);
1365 ino = 0;
1366 if (lobj) {
1367 vp = vm_object_vnode(lobj);
1368 if (vp != NULL)
1369 vref(vp);
1370 if (lobj != obj)
1371 VM_OBJECT_RUNLOCK(lobj);
1372 VM_OBJECT_RUNLOCK(obj);
1373 if (vp != NULL) {
1374 vn_fullpath(vp, &name, &freename);
1375 vn_lock(vp, LK_SHARED | LK_RETRY);
1376 VOP_GETATTR(vp, &vat, td->td_ucred);
1377 ino = vat.va_fileid;
1378 vput(vp);
1379 } else if (SV_PROC_ABI(p) == SV_ABI_LINUX) {
1380 /*
1381 * sv_shared_page_base pointed out to the
1382 * FreeBSD sharedpage, PAGE_SIZE is a size
1383 * of it. The vDSO page is above.
1384 */
1385 if (e_start == p->p_sysent->sv_shared_page_base +
1386 PAGE_SIZE)
1387 name = vdso_str;
1388 if (e_end == p->p_sysent->sv_usrstack)
1389 name = stack_str;
1390 }
1391 }
1392
1393 /*
1394 * format:
1395 * start, end, access, offset, major, minor, inode, name.
1396 */
1397 error = sbuf_printf(sb, l_map_str,
1398 (u_long)e_start, (u_long)e_end,
1399 (e_prot & VM_PROT_READ)?"r":"-",
1400 (e_prot & VM_PROT_WRITE)?"w":"-",
1401 (e_prot & VM_PROT_EXECUTE)?"x":"-",
1402 private ? "p" : "s",
1403 (u_long)off,
1404 0,
1405 0,
1406 (u_long)ino,
1407 *name ? " " : " ",
1408 name
1409 );
1410 if (freename)
1411 free(freename, M_TEMP);
1412 vm_map_lock_read(map);
1413 if (error == -1) {
1414 error = 0;
1415 break;
1416 }
1417 if (last_timestamp != map->timestamp) {
1418 /*
1419 * Look again for the entry because the map was
1420 * modified while it was unlocked. Specifically,
1421 * the entry may have been clipped, merged, or deleted.
1422 */
1423 vm_map_lookup_entry(map, e_end - 1, &tmp_entry);
1424 entry = tmp_entry;
1425 }
1426 }
1427 vm_map_unlock_read(map);
1428 vmspace_free(vm);
1429
1430 return (error);
1431 }
1432
1433 /*
1434 * Filler function for proc/pid/mem
1435 */
1436 static int
linprocfs_doprocmem(PFS_FILL_ARGS)1437 linprocfs_doprocmem(PFS_FILL_ARGS)
1438 {
1439 ssize_t resid;
1440 int error;
1441
1442 resid = uio->uio_resid;
1443 error = procfs_doprocmem(PFS_FILL_ARGNAMES);
1444
1445 if (uio->uio_rw == UIO_READ && resid != uio->uio_resid)
1446 return (0);
1447
1448 if (error == EFAULT)
1449 error = EIO;
1450
1451 return (error);
1452 }
1453
1454 /*
1455 * Filler function for proc/net/dev
1456 */
1457 static int
linprocfs_donetdev_cb(if_t ifp,void * arg)1458 linprocfs_donetdev_cb(if_t ifp, void *arg)
1459 {
1460 char ifname[LINUX_IFNAMSIZ];
1461 struct sbuf *sb = arg;
1462
1463 if (ifname_bsd_to_linux_ifp(ifp, ifname, sizeof(ifname)) <= 0)
1464 return (ENODEV);
1465
1466 sbuf_printf(sb, "%6.6s: ", ifname);
1467 sbuf_printf(sb, "%7ju %7ju %4ju %4ju %4lu %5lu %10lu %9ju ",
1468 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IBYTES),
1469 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IPACKETS),
1470 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IERRORS),
1471 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IQDROPS),
1472 /* rx_missed_errors */
1473 0UL, /* rx_fifo_errors */
1474 0UL, /* rx_length_errors +
1475 * rx_over_errors +
1476 * rx_crc_errors +
1477 * rx_frame_errors */
1478 0UL, /* rx_compressed */
1479 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IMCASTS));
1480 /* XXX-BZ rx only? */
1481 sbuf_printf(sb, "%8ju %7ju %4ju %4ju %4lu %5ju %7lu %10lu\n",
1482 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OBYTES),
1483 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OPACKETS),
1484 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OERRORS),
1485 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OQDROPS),
1486 0UL, /* tx_fifo_errors */
1487 (uintmax_t)if_getcounter(ifp, IFCOUNTER_COLLISIONS),
1488 0UL, /* tx_carrier_errors +
1489 * tx_aborted_errors +
1490 * tx_window_errors +
1491 * tx_heartbeat_errors*/
1492 0UL); /* tx_compressed */
1493 return (0);
1494 }
1495
1496 static int
linprocfs_donetdev(PFS_FILL_ARGS)1497 linprocfs_donetdev(PFS_FILL_ARGS)
1498 {
1499 struct epoch_tracker et;
1500
1501 sbuf_printf(sb, "%6s|%58s|%s\n"
1502 "%6s|%58s|%58s\n",
1503 "Inter-", " Receive", " Transmit",
1504 " face",
1505 "bytes packets errs drop fifo frame compressed multicast",
1506 "bytes packets errs drop fifo colls carrier compressed");
1507
1508 CURVNET_SET(TD_TO_VNET(curthread));
1509 NET_EPOCH_ENTER(et);
1510 if_foreach(linprocfs_donetdev_cb, sb);
1511 NET_EPOCH_EXIT(et);
1512 CURVNET_RESTORE();
1513
1514 return (0);
1515 }
1516
1517 struct walkarg {
1518 struct sbuf *sb;
1519 };
1520
1521 static int
linux_route_print(struct rtentry * rt,void * vw)1522 linux_route_print(struct rtentry *rt, void *vw)
1523 {
1524 #ifdef INET
1525 struct walkarg *w = vw;
1526 struct route_nhop_data rnd;
1527 struct in_addr dst, mask;
1528 struct nhop_object *nh;
1529 char ifname[16];
1530 uint32_t scopeid = 0;
1531 uint32_t gw = 0;
1532 uint32_t linux_flags = 0;
1533
1534 rt_get_inet_prefix_pmask(rt, &dst, &mask, &scopeid);
1535
1536 rt_get_rnd(rt, &rnd);
1537
1538 /* select only first route in case of multipath */
1539 nh = nhop_select_func(rnd.rnd_nhop, 0);
1540
1541 if (ifname_bsd_to_linux_ifp(nh->nh_ifp, ifname, sizeof(ifname)) <= 0)
1542 return (ENODEV);
1543
1544 gw = (nh->nh_flags & NHF_GATEWAY)
1545 ? nh->gw4_sa.sin_addr.s_addr : 0;
1546
1547 linux_flags = RTF_UP |
1548 (nhop_get_rtflags(nh) & (RTF_GATEWAY | RTF_HOST));
1549
1550 sbuf_printf(w->sb,
1551 "%s\t"
1552 "%08X\t%08X\t%04X\t"
1553 "%d\t%u\t%d\t"
1554 "%08X\t%d\t%u\t%u",
1555 ifname,
1556 dst.s_addr, gw, linux_flags,
1557 0, 0, rnd.rnd_weight,
1558 mask.s_addr, nh->nh_mtu, 0, 0);
1559
1560 sbuf_printf(w->sb, "\n\n");
1561 #endif
1562 return (0);
1563 }
1564
1565 /*
1566 * Filler function for proc/net/route
1567 */
1568 static int
linprocfs_donetroute(PFS_FILL_ARGS)1569 linprocfs_donetroute(PFS_FILL_ARGS)
1570 {
1571 struct epoch_tracker et;
1572 struct walkarg w = {
1573 .sb = sb
1574 };
1575 uint32_t fibnum = curthread->td_proc->p_fibnum;
1576
1577 sbuf_printf(w.sb, "%-127s\n", "Iface\tDestination\tGateway "
1578 "\tFlags\tRefCnt\tUse\tMetric\tMask\t\tMTU"
1579 "\tWindow\tIRTT");
1580
1581 CURVNET_SET(TD_TO_VNET(curthread));
1582 NET_EPOCH_ENTER(et);
1583 rib_walk(fibnum, AF_INET, false, linux_route_print, &w);
1584 NET_EPOCH_EXIT(et);
1585 CURVNET_RESTORE();
1586
1587 return (0);
1588 }
1589
1590 /*
1591 * Filler function for proc/sys/kernel/osrelease
1592 */
1593 static int
linprocfs_doosrelease(PFS_FILL_ARGS)1594 linprocfs_doosrelease(PFS_FILL_ARGS)
1595 {
1596 char osrelease[LINUX_MAX_UTSNAME];
1597
1598 linux_get_osrelease(td, osrelease);
1599 sbuf_printf(sb, "%s\n", osrelease);
1600
1601 return (0);
1602 }
1603
1604 /*
1605 * Filler function for proc/sys/kernel/ostype
1606 */
1607 static int
linprocfs_doostype(PFS_FILL_ARGS)1608 linprocfs_doostype(PFS_FILL_ARGS)
1609 {
1610 char osname[LINUX_MAX_UTSNAME];
1611
1612 linux_get_osname(td, osname);
1613 sbuf_printf(sb, "%s\n", osname);
1614
1615 return (0);
1616 }
1617
1618 /*
1619 * Filler function for proc/sys/kernel/version
1620 */
1621 static int
linprocfs_doosbuild(PFS_FILL_ARGS)1622 linprocfs_doosbuild(PFS_FILL_ARGS)
1623 {
1624
1625 linprocfs_osbuild(td, sb);
1626 sbuf_cat(sb, "\n");
1627 return (0);
1628 }
1629
1630 /*
1631 * Filler function for proc/sys/kernel/msgmax
1632 */
1633 static int
linprocfs_domsgmax(PFS_FILL_ARGS)1634 linprocfs_domsgmax(PFS_FILL_ARGS)
1635 {
1636
1637 sbuf_printf(sb, "%d\n", msginfo.msgmax);
1638 return (0);
1639 }
1640
1641 /*
1642 * Filler function for proc/sys/kernel/msgmni
1643 */
1644 static int
linprocfs_domsgmni(PFS_FILL_ARGS)1645 linprocfs_domsgmni(PFS_FILL_ARGS)
1646 {
1647
1648 sbuf_printf(sb, "%d\n", msginfo.msgmni);
1649 return (0);
1650 }
1651
1652 /*
1653 * Filler function for proc/sys/kernel/msgmnb
1654 */
1655 static int
linprocfs_domsgmnb(PFS_FILL_ARGS)1656 linprocfs_domsgmnb(PFS_FILL_ARGS)
1657 {
1658
1659 sbuf_printf(sb, "%d\n", msginfo.msgmnb);
1660 return (0);
1661 }
1662
1663 /*
1664 * Filler function for proc/sys/kernel/ngroups_max
1665 *
1666 * Note that in Linux it defaults to 65536, not 1023.
1667 */
1668 static int
linprocfs_dongroups_max(PFS_FILL_ARGS)1669 linprocfs_dongroups_max(PFS_FILL_ARGS)
1670 {
1671
1672 sbuf_printf(sb, "%d\n", ngroups_max);
1673 return (0);
1674 }
1675
1676 /*
1677 * Filler function for proc/sys/kernel/pid_max
1678 */
1679 static int
linprocfs_dopid_max(PFS_FILL_ARGS)1680 linprocfs_dopid_max(PFS_FILL_ARGS)
1681 {
1682
1683 sbuf_printf(sb, "%i\n", PID_MAX);
1684 return (0);
1685 }
1686
1687 /*
1688 * Filler function for proc/sys/kernel/sem
1689 */
1690 static int
linprocfs_dosem(PFS_FILL_ARGS)1691 linprocfs_dosem(PFS_FILL_ARGS)
1692 {
1693
1694 sbuf_printf(sb, "%d %d %d %d\n", seminfo.semmsl, seminfo.semmns,
1695 seminfo.semopm, seminfo.semmni);
1696 return (0);
1697 }
1698
1699 /*
1700 * Filler function for proc/sys/kernel/shmall
1701 */
1702 static int
linprocfs_doshmall(PFS_FILL_ARGS)1703 linprocfs_doshmall(PFS_FILL_ARGS)
1704 {
1705
1706 sbuf_printf(sb, "%lu\n", shminfo.shmall);
1707 return (0);
1708 }
1709
1710 /*
1711 * Filler function for proc/sys/kernel/shmmax
1712 */
1713 static int
linprocfs_doshmmax(PFS_FILL_ARGS)1714 linprocfs_doshmmax(PFS_FILL_ARGS)
1715 {
1716
1717 sbuf_printf(sb, "%lu\n", shminfo.shmmax);
1718 return (0);
1719 }
1720
1721 /*
1722 * Filler function for proc/sys/kernel/shmmni
1723 */
1724 static int
linprocfs_doshmmni(PFS_FILL_ARGS)1725 linprocfs_doshmmni(PFS_FILL_ARGS)
1726 {
1727
1728 sbuf_printf(sb, "%lu\n", shminfo.shmmni);
1729 return (0);
1730 }
1731
1732 /*
1733 * Filler function for proc/sys/kernel/tainted
1734 */
1735 static int
linprocfs_dotainted(PFS_FILL_ARGS)1736 linprocfs_dotainted(PFS_FILL_ARGS)
1737 {
1738
1739 sbuf_printf(sb, "0\n");
1740 return (0);
1741 }
1742
1743 /*
1744 * Filler function for proc/sys/vm/min_free_kbytes
1745 *
1746 * This mirrors the approach in illumos to return zero for reads. Effectively,
1747 * it says, no memory is kept in reserve for "atomic allocations". This class
1748 * of allocation can be used at times when a thread cannot be suspended.
1749 */
1750 static int
linprocfs_dominfree(PFS_FILL_ARGS)1751 linprocfs_dominfree(PFS_FILL_ARGS)
1752 {
1753
1754 sbuf_printf(sb, "%d\n", 0);
1755 return (0);
1756 }
1757
1758 /*
1759 * Filler function for proc/scsi/device_info
1760 */
1761 static int
linprocfs_doscsidevinfo(PFS_FILL_ARGS)1762 linprocfs_doscsidevinfo(PFS_FILL_ARGS)
1763 {
1764
1765 return (0);
1766 }
1767
1768 /*
1769 * Filler function for proc/scsi/scsi
1770 */
1771 static int
linprocfs_doscsiscsi(PFS_FILL_ARGS)1772 linprocfs_doscsiscsi(PFS_FILL_ARGS)
1773 {
1774
1775 return (0);
1776 }
1777
1778 /*
1779 * Filler function for proc/devices
1780 */
1781 static int
linprocfs_dodevices(PFS_FILL_ARGS)1782 linprocfs_dodevices(PFS_FILL_ARGS)
1783 {
1784 char *char_devices;
1785 sbuf_printf(sb, "Character devices:\n");
1786
1787 char_devices = linux_get_char_devices();
1788 sbuf_printf(sb, "%s", char_devices);
1789 linux_free_get_char_devices(char_devices);
1790
1791 sbuf_printf(sb, "\nBlock devices:\n");
1792
1793 return (0);
1794 }
1795
1796 /*
1797 * Filler function for proc/cmdline
1798 */
1799 static int
linprocfs_docmdline(PFS_FILL_ARGS)1800 linprocfs_docmdline(PFS_FILL_ARGS)
1801 {
1802
1803 sbuf_printf(sb, "BOOT_IMAGE=%s", kernelname);
1804 sbuf_printf(sb, " ro root=302\n");
1805 return (0);
1806 }
1807
1808 /*
1809 * Filler function for proc/filesystems
1810 */
1811 static int
linprocfs_dofilesystems(PFS_FILL_ARGS)1812 linprocfs_dofilesystems(PFS_FILL_ARGS)
1813 {
1814 struct vfsconf *vfsp;
1815
1816 vfsconf_slock();
1817 TAILQ_FOREACH(vfsp, &vfsconf, vfc_list) {
1818 if (vfsp->vfc_flags & VFCF_SYNTHETIC)
1819 sbuf_printf(sb, "nodev");
1820 sbuf_printf(sb, "\t%s\n", vfsp->vfc_name);
1821 }
1822 vfsconf_sunlock();
1823 return(0);
1824 }
1825
1826 /*
1827 * Filler function for proc/modules
1828 */
1829 static int
linprocfs_domodules(PFS_FILL_ARGS)1830 linprocfs_domodules(PFS_FILL_ARGS)
1831 {
1832 #if 0
1833 struct linker_file *lf;
1834
1835 TAILQ_FOREACH(lf, &linker_files, link) {
1836 sbuf_printf(sb, "%-20s%8lu%4d\n", lf->filename,
1837 (unsigned long)lf->size, lf->refs);
1838 }
1839 #endif
1840 return (0);
1841 }
1842
1843 /*
1844 * Filler function for proc/pid/fd
1845 */
1846 static int
linprocfs_dofdescfs(PFS_FILL_ARGS)1847 linprocfs_dofdescfs(PFS_FILL_ARGS)
1848 {
1849
1850 if (p == curproc)
1851 sbuf_printf(sb, "/dev/fd");
1852 else
1853 sbuf_printf(sb, "unknown");
1854 return (0);
1855 }
1856
1857 /*
1858 * Filler function for proc/pid/limits
1859 */
1860 static const struct linux_rlimit_ident {
1861 const char *desc;
1862 const char *unit;
1863 unsigned int rlim_id;
1864 } linux_rlimits_ident[] = {
1865 { "Max cpu time", "seconds", RLIMIT_CPU },
1866 { "Max file size", "bytes", RLIMIT_FSIZE },
1867 { "Max data size", "bytes", RLIMIT_DATA },
1868 { "Max stack size", "bytes", RLIMIT_STACK },
1869 { "Max core file size", "bytes", RLIMIT_CORE },
1870 { "Max resident set", "bytes", RLIMIT_RSS },
1871 { "Max processes", "processes", RLIMIT_NPROC },
1872 { "Max open files", "files", RLIMIT_NOFILE },
1873 { "Max locked memory", "bytes", RLIMIT_MEMLOCK },
1874 { "Max address space", "bytes", RLIMIT_AS },
1875 { "Max file locks", "locks", LINUX_RLIMIT_LOCKS },
1876 { "Max pending signals", "signals", LINUX_RLIMIT_SIGPENDING },
1877 { "Max msgqueue size", "bytes", LINUX_RLIMIT_MSGQUEUE },
1878 { "Max nice priority", "", LINUX_RLIMIT_NICE },
1879 { "Max realtime priority", "", LINUX_RLIMIT_RTPRIO },
1880 { "Max realtime timeout", "us", LINUX_RLIMIT_RTTIME },
1881 { 0, 0, 0 }
1882 };
1883
1884 static int
linprocfs_doproclimits(PFS_FILL_ARGS)1885 linprocfs_doproclimits(PFS_FILL_ARGS)
1886 {
1887 const struct linux_rlimit_ident *li;
1888 struct plimit *limp;
1889 struct rlimit rl;
1890 ssize_t size;
1891 int res, error;
1892
1893 error = 0;
1894
1895 PROC_LOCK(p);
1896 limp = lim_hold(p->p_limit);
1897 PROC_UNLOCK(p);
1898 size = sizeof(res);
1899 sbuf_printf(sb, "%-26s%-21s%-21s%-21s\n", "Limit", "Soft Limit",
1900 "Hard Limit", "Units");
1901 for (li = linux_rlimits_ident; li->desc != NULL; ++li) {
1902 switch (li->rlim_id)
1903 {
1904 case LINUX_RLIMIT_LOCKS:
1905 /* FALLTHROUGH */
1906 case LINUX_RLIMIT_RTTIME:
1907 rl.rlim_cur = RLIM_INFINITY;
1908 break;
1909 case LINUX_RLIMIT_SIGPENDING:
1910 error = kernel_sysctlbyname(td,
1911 "kern.sigqueue.max_pending_per_proc",
1912 &res, &size, 0, 0, 0, 0);
1913 if (error != 0)
1914 goto out;
1915 rl.rlim_cur = res;
1916 rl.rlim_max = res;
1917 break;
1918 case LINUX_RLIMIT_MSGQUEUE:
1919 error = kernel_sysctlbyname(td,
1920 "kern.ipc.msgmnb", &res, &size, 0, 0, 0, 0);
1921 if (error != 0)
1922 goto out;
1923 rl.rlim_cur = res;
1924 rl.rlim_max = res;
1925 break;
1926 case LINUX_RLIMIT_NICE:
1927 /* FALLTHROUGH */
1928 case LINUX_RLIMIT_RTPRIO:
1929 rl.rlim_cur = 0;
1930 rl.rlim_max = 0;
1931 break;
1932 default:
1933 rl = limp->pl_rlimit[li->rlim_id];
1934 break;
1935 }
1936 if (rl.rlim_cur == RLIM_INFINITY)
1937 sbuf_printf(sb, "%-26s%-21s%-21s%-10s\n",
1938 li->desc, "unlimited", "unlimited", li->unit);
1939 else
1940 sbuf_printf(sb, "%-26s%-21llu%-21llu%-10s\n",
1941 li->desc, (unsigned long long)rl.rlim_cur,
1942 (unsigned long long)rl.rlim_max, li->unit);
1943 }
1944 out:
1945 lim_free(limp);
1946 return (error);
1947 }
1948
1949 /*
1950 * The point of the following two functions is to work around
1951 * an assertion in Chromium; see kern/240991 for details.
1952 */
1953 static int
linprocfs_dotaskattr(PFS_ATTR_ARGS)1954 linprocfs_dotaskattr(PFS_ATTR_ARGS)
1955 {
1956
1957 vap->va_nlink = 3;
1958 return (0);
1959 }
1960
1961 /*
1962 * Filler function for proc/<pid>/task/.dummy
1963 */
1964 static int
linprocfs_dotaskdummy(PFS_FILL_ARGS)1965 linprocfs_dotaskdummy(PFS_FILL_ARGS)
1966 {
1967
1968 return (0);
1969 }
1970
1971 /*
1972 * Filler function for proc/sys/kernel/random/uuid
1973 */
1974 static int
linprocfs_douuid(PFS_FILL_ARGS)1975 linprocfs_douuid(PFS_FILL_ARGS)
1976 {
1977 struct uuid uuid;
1978
1979 kern_uuidgen(&uuid, 1);
1980 sbuf_printf_uuid(sb, &uuid);
1981 sbuf_printf(sb, "\n");
1982 return(0);
1983 }
1984
1985 /*
1986 * Filler function for proc/sys/kernel/random/boot_id
1987 */
1988 static int
linprocfs_doboot_id(PFS_FILL_ARGS)1989 linprocfs_doboot_id(PFS_FILL_ARGS)
1990 {
1991 static bool firstboot = 1;
1992 static struct uuid uuid;
1993
1994 if (firstboot) {
1995 kern_uuidgen(&uuid, 1);
1996 firstboot = 0;
1997 }
1998 sbuf_printf_uuid(sb, &uuid);
1999 sbuf_printf(sb, "\n");
2000 return(0);
2001 }
2002
2003 /*
2004 * Filler function for proc/pid/auxv
2005 */
2006 static int
linprocfs_doauxv(PFS_FILL_ARGS)2007 linprocfs_doauxv(PFS_FILL_ARGS)
2008 {
2009 struct sbuf *asb;
2010 off_t buflen, resid;
2011 int error;
2012
2013 /*
2014 * Mimic linux behavior and pass only processes with usermode
2015 * address space as valid. Return zero silently otherwise.
2016 */
2017 if (p->p_vmspace == &vmspace0)
2018 return (0);
2019
2020 if (uio->uio_resid == 0)
2021 return (0);
2022 if (uio->uio_offset < 0 || uio->uio_resid < 0)
2023 return (EINVAL);
2024
2025 asb = sbuf_new_auto();
2026 if (asb == NULL)
2027 return (ENOMEM);
2028 error = proc_getauxv(td, p, asb);
2029 if (error == 0)
2030 error = sbuf_finish(asb);
2031
2032 resid = sbuf_len(asb) - uio->uio_offset;
2033 if (resid > uio->uio_resid)
2034 buflen = uio->uio_resid;
2035 else
2036 buflen = resid;
2037 if (buflen > IOSIZE_MAX)
2038 return (EINVAL);
2039 if (buflen > maxphys)
2040 buflen = maxphys;
2041 if (resid <= 0)
2042 return (0);
2043
2044 if (error == 0)
2045 error = uiomove(sbuf_data(asb) + uio->uio_offset, buflen, uio);
2046 sbuf_delete(asb);
2047 return (error);
2048 }
2049
2050 /*
2051 * Filler function for proc/self/oom_score_adj
2052 */
2053 static int
linprocfs_do_oom_score_adj(PFS_FILL_ARGS)2054 linprocfs_do_oom_score_adj(PFS_FILL_ARGS)
2055 {
2056 struct linux_pemuldata *pem;
2057 long oom;
2058
2059 pem = pem_find(p);
2060 if (pem == NULL || uio == NULL)
2061 return (EOPNOTSUPP);
2062 if (uio->uio_rw == UIO_READ) {
2063 sbuf_printf(sb, "%d\n", pem->oom_score_adj);
2064 } else {
2065 sbuf_trim(sb);
2066 sbuf_finish(sb);
2067 oom = strtol(sbuf_data(sb), NULL, 10);
2068 if (oom < LINUX_OOM_SCORE_ADJ_MIN ||
2069 oom > LINUX_OOM_SCORE_ADJ_MAX)
2070 return (EINVAL);
2071 pem->oom_score_adj = oom;
2072 }
2073 return (0);
2074 }
2075
2076 /*
2077 * Filler function for proc/sys/vm/max_map_count
2078 *
2079 * Maximum number of active map areas, on Linux this limits the number
2080 * of vmaps per mm struct. We don't limit mappings, return a suitable
2081 * large value.
2082 */
2083 static int
linprocfs_domax_map_cnt(PFS_FILL_ARGS)2084 linprocfs_domax_map_cnt(PFS_FILL_ARGS)
2085 {
2086
2087 sbuf_printf(sb, "%d\n", INT32_MAX);
2088 return (0);
2089 }
2090
2091 /*
2092 * Filler function for proc/sysvipc/msg
2093 */
2094 static int
linprocfs_dosysvipc_msg(PFS_FILL_ARGS)2095 linprocfs_dosysvipc_msg(PFS_FILL_ARGS)
2096 {
2097 struct msqid_kernel *msqids;
2098 size_t id, size;
2099 int error;
2100
2101 sbuf_printf(sb,
2102 "%10s %10s %4s %10s %10s %5s %5s %5s %5s %5s %5s %10s %10s %10s\n",
2103 "key", "msqid", "perms", "cbytes", "qnum", "lspid", "lrpid",
2104 "uid", "gid", "cuid", "cgid", "stime", "rtime", "ctime");
2105
2106 error = kern_get_msqids(curthread, &msqids, &size);
2107 if (error != 0)
2108 return (error);
2109
2110 for (id = 0; id < size; id++) {
2111 if (msqids[id].u.msg_qbytes == 0)
2112 continue;
2113 sbuf_printf(sb,
2114 "%10d %10zu %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %jd %jd %jd\n",
2115 (int)msqids[id].u.msg_perm.key,
2116 IXSEQ_TO_IPCID(id, msqids[id].u.msg_perm),
2117 msqids[id].u.msg_perm.mode,
2118 msqids[id].u.msg_cbytes,
2119 msqids[id].u.msg_qnum,
2120 msqids[id].u.msg_lspid,
2121 msqids[id].u.msg_lrpid,
2122 msqids[id].u.msg_perm.uid,
2123 msqids[id].u.msg_perm.gid,
2124 msqids[id].u.msg_perm.cuid,
2125 msqids[id].u.msg_perm.cgid,
2126 (intmax_t)msqids[id].u.msg_stime,
2127 (intmax_t)msqids[id].u.msg_rtime,
2128 (intmax_t)msqids[id].u.msg_ctime);
2129 }
2130
2131 free(msqids, M_TEMP);
2132 return (0);
2133 }
2134
2135 /*
2136 * Filler function for proc/sysvipc/sem
2137 */
2138 static int
linprocfs_dosysvipc_sem(PFS_FILL_ARGS)2139 linprocfs_dosysvipc_sem(PFS_FILL_ARGS)
2140 {
2141 struct semid_kernel *semids;
2142 size_t id, size;
2143 int error;
2144
2145 sbuf_printf(sb, "%10s %10s %4s %10s %5s %5s %5s %5s %10s %10s\n",
2146 "key", "semid", "perms", "nsems", "uid", "gid", "cuid", "cgid",
2147 "otime", "ctime");
2148
2149 error = kern_get_sema(curthread, &semids, &size);
2150 if (error != 0)
2151 return (error);
2152
2153 for (id = 0; id < size; id++) {
2154 if ((semids[id].u.sem_perm.mode & SEM_ALLOC) == 0)
2155 continue;
2156 sbuf_printf(sb,
2157 "%10d %10zu %4o %10u %5u %5u %5u %5u %jd %jd\n",
2158 (int)semids[id].u.sem_perm.key,
2159 IXSEQ_TO_IPCID(id, semids[id].u.sem_perm),
2160 semids[id].u.sem_perm.mode,
2161 semids[id].u.sem_nsems,
2162 semids[id].u.sem_perm.uid,
2163 semids[id].u.sem_perm.gid,
2164 semids[id].u.sem_perm.cuid,
2165 semids[id].u.sem_perm.cgid,
2166 (intmax_t)semids[id].u.sem_otime,
2167 (intmax_t)semids[id].u.sem_ctime);
2168 }
2169
2170 free(semids, M_TEMP);
2171 return (0);
2172 }
2173
2174 /*
2175 * Filler function for proc/sysvipc/shm
2176 */
2177 static int
linprocfs_dosysvipc_shm(PFS_FILL_ARGS)2178 linprocfs_dosysvipc_shm(PFS_FILL_ARGS)
2179 {
2180 struct shmid_kernel *shmids;
2181 size_t id, size;
2182 int error;
2183
2184 sbuf_printf(sb,
2185 "%10s %10s %s %21s %5s %5s %5s %5s %5s %5s %5s %10s %10s %10s %21s %21s\n",
2186 "key", "shmid", "perms", "size", "cpid", "lpid", "nattch", "uid",
2187 "gid", "cuid", "cgid", "atime", "dtime", "ctime", "rss", "swap");
2188
2189 error = kern_get_shmsegs(curthread, &shmids, &size);
2190 if (error != 0)
2191 return (error);
2192
2193 for (id = 0; id < size; id++) {
2194 if ((shmids[id].u.shm_perm.mode & SHMSEG_ALLOCATED) == 0)
2195 continue;
2196 sbuf_printf(sb,
2197 "%10d %10zu %4o %21zu %5u %5u %5u %5u %5u %5u %5u %jd %jd %jd %21d %21d\n",
2198 (int)shmids[id].u.shm_perm.key,
2199 IXSEQ_TO_IPCID(id, shmids[id].u.shm_perm),
2200 shmids[id].u.shm_perm.mode,
2201 shmids[id].u.shm_segsz,
2202 shmids[id].u.shm_cpid,
2203 shmids[id].u.shm_lpid,
2204 shmids[id].u.shm_nattch,
2205 shmids[id].u.shm_perm.uid,
2206 shmids[id].u.shm_perm.gid,
2207 shmids[id].u.shm_perm.cuid,
2208 shmids[id].u.shm_perm.cgid,
2209 (intmax_t)shmids[id].u.shm_atime,
2210 (intmax_t)shmids[id].u.shm_dtime,
2211 (intmax_t)shmids[id].u.shm_ctime,
2212 0, 0); /* XXX rss & swp are not supported */
2213 }
2214
2215 free(shmids, M_TEMP);
2216 return (0);
2217 }
2218
2219 /*
2220 * Filler function for proc/sys/fs/mqueue/msg_default
2221 */
2222 static int
linprocfs_domqueue_msg_default(PFS_FILL_ARGS)2223 linprocfs_domqueue_msg_default(PFS_FILL_ARGS)
2224 {
2225 int res, error;
2226 size_t size = sizeof(res);
2227
2228 error = kernel_sysctlbyname(curthread, "kern.mqueue.default_maxmsg",
2229 &res, &size, NULL, 0, 0, 0);
2230 if (error != 0)
2231 return (error);
2232
2233 sbuf_printf(sb, "%d\n", res);
2234 return (0);
2235 }
2236
2237 /*
2238 * Filler function for proc/sys/fs/mqueue/msgsize_default
2239 */
2240 static int
linprocfs_domqueue_msgsize_default(PFS_FILL_ARGS)2241 linprocfs_domqueue_msgsize_default(PFS_FILL_ARGS)
2242 {
2243 int res, error;
2244 size_t size = sizeof(res);
2245
2246 error = kernel_sysctlbyname(curthread, "kern.mqueue.default_msgsize",
2247 &res, &size, NULL, 0, 0, 0);
2248 if (error != 0)
2249 return (error);
2250
2251 sbuf_printf(sb, "%d\n", res);
2252 return (0);
2253
2254 }
2255
2256 /*
2257 * Filler function for proc/sys/fs/mqueue/msg_max
2258 */
2259 static int
linprocfs_domqueue_msg_max(PFS_FILL_ARGS)2260 linprocfs_domqueue_msg_max(PFS_FILL_ARGS)
2261 {
2262 int res, error;
2263 size_t size = sizeof(res);
2264
2265 error = kernel_sysctlbyname(curthread, "kern.mqueue.maxmsg",
2266 &res, &size, NULL, 0, 0, 0);
2267 if (error != 0)
2268 return (error);
2269
2270 sbuf_printf(sb, "%d\n", res);
2271 return (0);
2272 }
2273
2274 /*
2275 * Filler function for proc/sys/fs/mqueue/msgsize_max
2276 */
2277 static int
linprocfs_domqueue_msgsize_max(PFS_FILL_ARGS)2278 linprocfs_domqueue_msgsize_max(PFS_FILL_ARGS)
2279 {
2280 int res, error;
2281 size_t size = sizeof(res);
2282
2283 error = kernel_sysctlbyname(curthread, "kern.mqueue.maxmsgsize",
2284 &res, &size, NULL, 0, 0, 0);
2285 if (error != 0)
2286 return (error);
2287
2288 sbuf_printf(sb, "%d\n", res);
2289 return (0);
2290 }
2291
2292 /*
2293 * Filler function for proc/sys/fs/mqueue/queues_max
2294 */
2295 static int
linprocfs_domqueue_queues_max(PFS_FILL_ARGS)2296 linprocfs_domqueue_queues_max(PFS_FILL_ARGS)
2297 {
2298 int res, error;
2299 size_t size = sizeof(res);
2300
2301 error = kernel_sysctlbyname(curthread, "kern.mqueue.maxmq",
2302 &res, &size, NULL, 0, 0, 0);
2303 if (error != 0)
2304 return (error);
2305
2306 sbuf_printf(sb, "%d\n", res);
2307 return (0);
2308 }
2309
2310 /*
2311 * Constructor
2312 */
2313 static int
linprocfs_init(PFS_INIT_ARGS)2314 linprocfs_init(PFS_INIT_ARGS)
2315 {
2316 struct pfs_node *root;
2317 struct pfs_node *dir;
2318 struct pfs_node *sys;
2319
2320 root = pi->pi_root;
2321
2322 /* /proc/... */
2323 pfs_create_file(root, "cmdline", &linprocfs_docmdline,
2324 NULL, NULL, NULL, PFS_RD);
2325 pfs_create_file(root, "cpuinfo", &linprocfs_docpuinfo,
2326 NULL, NULL, NULL, PFS_RD);
2327 pfs_create_file(root, "devices", &linprocfs_dodevices,
2328 NULL, NULL, NULL, PFS_RD);
2329 pfs_create_file(root, "filesystems", &linprocfs_dofilesystems,
2330 NULL, NULL, NULL, PFS_RD);
2331 pfs_create_file(root, "loadavg", &linprocfs_doloadavg,
2332 NULL, NULL, NULL, PFS_RD);
2333 pfs_create_file(root, "meminfo", &linprocfs_domeminfo,
2334 NULL, NULL, NULL, PFS_RD);
2335 pfs_create_file(root, "modules", &linprocfs_domodules,
2336 NULL, NULL, NULL, PFS_RD);
2337 pfs_create_file(root, "mounts", &linprocfs_domtab,
2338 NULL, NULL, NULL, PFS_RD);
2339 pfs_create_file(root, "mtab", &linprocfs_domtab,
2340 NULL, NULL, NULL, PFS_RD);
2341 pfs_create_file(root, "partitions", &linprocfs_dopartitions,
2342 NULL, NULL, NULL, PFS_RD);
2343 pfs_create_link(root, "self", &procfs_docurproc,
2344 NULL, NULL, NULL, 0);
2345 pfs_create_file(root, "stat", &linprocfs_dostat,
2346 NULL, NULL, NULL, PFS_RD);
2347 pfs_create_file(root, "swaps", &linprocfs_doswaps,
2348 NULL, NULL, NULL, PFS_RD);
2349 pfs_create_file(root, "uptime", &linprocfs_douptime,
2350 NULL, NULL, NULL, PFS_RD);
2351 pfs_create_file(root, "version", &linprocfs_doversion,
2352 NULL, NULL, NULL, PFS_RD);
2353
2354 /* /proc/bus/... */
2355 dir = pfs_create_dir(root, "bus", NULL, NULL, NULL, 0);
2356 dir = pfs_create_dir(dir, "pci", NULL, NULL, NULL, 0);
2357 dir = pfs_create_dir(dir, "devices", NULL, NULL, NULL, 0);
2358
2359 /* /proc/net/... */
2360 dir = pfs_create_dir(root, "net", NULL, NULL, NULL, 0);
2361 pfs_create_file(dir, "dev", &linprocfs_donetdev,
2362 NULL, NULL, NULL, PFS_RD);
2363 pfs_create_file(dir, "route", &linprocfs_donetroute,
2364 NULL, NULL, NULL, PFS_RD);
2365
2366 /* /proc/<pid>/... */
2367 dir = pfs_create_dir(root, "pid", NULL, NULL, NULL, PFS_PROCDEP);
2368 pfs_create_file(dir, "cmdline", &linprocfs_doproccmdline,
2369 NULL, NULL, NULL, PFS_RD);
2370 pfs_create_link(dir, "cwd", &linprocfs_doproccwd,
2371 NULL, NULL, NULL, 0);
2372 pfs_create_file(dir, "environ", &linprocfs_doprocenviron,
2373 NULL, &procfs_candebug, NULL, PFS_RD);
2374 pfs_create_link(dir, "exe", &procfs_doprocfile,
2375 NULL, &procfs_notsystem, NULL, 0);
2376 pfs_create_file(dir, "maps", &linprocfs_doprocmaps,
2377 NULL, NULL, NULL, PFS_RD | PFS_AUTODRAIN);
2378 pfs_create_file(dir, "mem", &linprocfs_doprocmem,
2379 procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
2380 pfs_create_file(dir, "mountinfo", &linprocfs_doprocmountinfo,
2381 NULL, NULL, NULL, PFS_RD);
2382 pfs_create_file(dir, "mounts", &linprocfs_domtab,
2383 NULL, NULL, NULL, PFS_RD);
2384 pfs_create_link(dir, "root", &linprocfs_doprocroot,
2385 NULL, NULL, NULL, 0);
2386 pfs_create_file(dir, "stat", &linprocfs_doprocstat,
2387 NULL, NULL, NULL, PFS_RD);
2388 pfs_create_file(dir, "statm", &linprocfs_doprocstatm,
2389 NULL, NULL, NULL, PFS_RD);
2390 pfs_create_file(dir, "status", &linprocfs_doprocstatus,
2391 NULL, NULL, NULL, PFS_RD);
2392 pfs_create_link(dir, "fd", &linprocfs_dofdescfs,
2393 NULL, NULL, NULL, 0);
2394 pfs_create_file(dir, "auxv", &linprocfs_doauxv,
2395 NULL, &procfs_candebug, NULL, PFS_RD|PFS_RAWRD);
2396 pfs_create_file(dir, "limits", &linprocfs_doproclimits,
2397 NULL, NULL, NULL, PFS_RD);
2398 pfs_create_file(dir, "oom_score_adj", &linprocfs_do_oom_score_adj,
2399 procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR);
2400
2401 /* /proc/<pid>/task/... */
2402 dir = pfs_create_dir(dir, "task", linprocfs_dotaskattr, NULL, NULL, 0);
2403 pfs_create_file(dir, ".dummy", &linprocfs_dotaskdummy,
2404 NULL, NULL, NULL, PFS_RD);
2405
2406 /* /proc/scsi/... */
2407 dir = pfs_create_dir(root, "scsi", NULL, NULL, NULL, 0);
2408 pfs_create_file(dir, "device_info", &linprocfs_doscsidevinfo,
2409 NULL, NULL, NULL, PFS_RD);
2410 pfs_create_file(dir, "scsi", &linprocfs_doscsiscsi,
2411 NULL, NULL, NULL, PFS_RD);
2412
2413 /* /proc/sys/... */
2414 sys = pfs_create_dir(root, "sys", NULL, NULL, NULL, 0);
2415
2416 /* /proc/sys/kernel/... */
2417 dir = pfs_create_dir(sys, "kernel", NULL, NULL, NULL, 0);
2418 pfs_create_file(dir, "osrelease", &linprocfs_doosrelease,
2419 NULL, NULL, NULL, PFS_RD);
2420 pfs_create_file(dir, "ostype", &linprocfs_doostype,
2421 NULL, NULL, NULL, PFS_RD);
2422 pfs_create_file(dir, "version", &linprocfs_doosbuild,
2423 NULL, NULL, NULL, PFS_RD);
2424 pfs_create_file(dir, "msgmax", &linprocfs_domsgmax,
2425 NULL, NULL, NULL, PFS_RD);
2426 pfs_create_file(dir, "msgmni", &linprocfs_domsgmni,
2427 NULL, NULL, NULL, PFS_RD);
2428 pfs_create_file(dir, "msgmnb", &linprocfs_domsgmnb,
2429 NULL, NULL, NULL, PFS_RD);
2430 pfs_create_file(dir, "ngroups_max", &linprocfs_dongroups_max,
2431 NULL, NULL, NULL, PFS_RD);
2432 pfs_create_file(dir, "pid_max", &linprocfs_dopid_max,
2433 NULL, NULL, NULL, PFS_RD);
2434 pfs_create_file(dir, "sem", &linprocfs_dosem,
2435 NULL, NULL, NULL, PFS_RD);
2436 pfs_create_file(dir, "shmall", &linprocfs_doshmall,
2437 NULL, NULL, NULL, PFS_RD);
2438 pfs_create_file(dir, "shmmax", &linprocfs_doshmmax,
2439 NULL, NULL, NULL, PFS_RD);
2440 pfs_create_file(dir, "shmmni", &linprocfs_doshmmni,
2441 NULL, NULL, NULL, PFS_RD);
2442 pfs_create_file(dir, "tainted", &linprocfs_dotainted,
2443 NULL, NULL, NULL, PFS_RD);
2444
2445 /* /proc/sys/kernel/random/... */
2446 dir = pfs_create_dir(dir, "random", NULL, NULL, NULL, 0);
2447 pfs_create_file(dir, "uuid", &linprocfs_douuid,
2448 NULL, NULL, NULL, PFS_RD);
2449 pfs_create_file(dir, "boot_id", &linprocfs_doboot_id,
2450 NULL, NULL, NULL, PFS_RD);
2451
2452 /* /proc/sys/vm/.... */
2453 dir = pfs_create_dir(sys, "vm", NULL, NULL, NULL, 0);
2454 pfs_create_file(dir, "min_free_kbytes", &linprocfs_dominfree,
2455 NULL, NULL, NULL, PFS_RD);
2456 pfs_create_file(dir, "max_map_count", &linprocfs_domax_map_cnt,
2457 NULL, NULL, NULL, PFS_RD);
2458
2459 /* /proc/sysvipc/... */
2460 dir = pfs_create_dir(root, "sysvipc", NULL, NULL, NULL, 0);
2461 pfs_create_file(dir, "msg", &linprocfs_dosysvipc_msg,
2462 NULL, NULL, NULL, PFS_RD);
2463 pfs_create_file(dir, "sem", &linprocfs_dosysvipc_sem,
2464 NULL, NULL, NULL, PFS_RD);
2465 pfs_create_file(dir, "shm", &linprocfs_dosysvipc_shm,
2466 NULL, NULL, NULL, PFS_RD);
2467
2468 /* /proc/sys/fs/... */
2469 dir = pfs_create_dir(sys, "fs", NULL, NULL, NULL, 0);
2470
2471 /* /proc/sys/fs/mqueue/... */
2472 dir = pfs_create_dir(dir, "mqueue", NULL, NULL, NULL, 0);
2473 pfs_create_file(dir, "msg_default", &linprocfs_domqueue_msg_default,
2474 NULL, NULL, NULL, PFS_RD);
2475 pfs_create_file(dir, "msgsize_default", &linprocfs_domqueue_msgsize_default,
2476 NULL, NULL, NULL, PFS_RD);
2477 pfs_create_file(dir, "msg_max", &linprocfs_domqueue_msg_max,
2478 NULL, NULL, NULL, PFS_RD);
2479 pfs_create_file(dir, "msgsize_max", &linprocfs_domqueue_msgsize_max,
2480 NULL, NULL, NULL, PFS_RD);
2481 pfs_create_file(dir, "queues_max", &linprocfs_domqueue_queues_max,
2482 NULL, NULL, NULL, PFS_RD);
2483
2484 return (0);
2485 }
2486
2487 /*
2488 * Destructor
2489 */
2490 static int
linprocfs_uninit(PFS_INIT_ARGS)2491 linprocfs_uninit(PFS_INIT_ARGS)
2492 {
2493
2494 /* nothing to do, pseudofs will GC */
2495 return (0);
2496 }
2497
2498 PSEUDOFS(linprocfs, 1, VFCF_JAIL);
2499 #if defined(__aarch64__) || defined(__amd64__)
2500 MODULE_DEPEND(linprocfs, linux_common, 1, 1, 1);
2501 #else
2502 MODULE_DEPEND(linprocfs, linux, 1, 1, 1);
2503 #endif
2504 MODULE_DEPEND(linprocfs, procfs, 1, 1, 1);
2505 MODULE_DEPEND(linprocfs, sysvmsg, 1, 1, 1);
2506 MODULE_DEPEND(linprocfs, sysvsem, 1, 1, 1);
2507 MODULE_DEPEND(linprocfs, sysvshm, 1, 1, 1);
2508