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 const char *path_slash_sys = "/sys";
450 static const char *fstype_sysfs = "sysfs";
451
452 static int
_mtab_helper(const struct pfs_node * pn,const struct statfs * sp,const char ** mntfrom,const char ** mntto,const char ** fstype)453 _mtab_helper(const struct pfs_node *pn, const struct statfs *sp,
454 const char **mntfrom, const char **mntto, const char **fstype)
455 {
456 /* determine device name */
457 *mntfrom = sp->f_mntfromname;
458
459 /* determine mount point */
460 *mntto = sp->f_mntonname;
461
462 /* determine fs type */
463 *fstype = sp->f_fstypename;
464 if (strcmp(*fstype, pn->pn_info->pi_name) == 0)
465 *mntfrom = *fstype = "proc";
466 else if (strcmp(*fstype, "procfs") == 0)
467 return (ECANCELED);
468
469 if (strcmp(*fstype, "autofs") == 0) {
470 /*
471 * FreeBSD uses eg "map -hosts", whereas Linux
472 * expects just "-hosts".
473 */
474 if (strncmp(*mntfrom, "map ", 4) == 0)
475 *mntfrom += 4;
476 }
477
478 if (strcmp(*fstype, "linsysfs") == 0) {
479 *mntfrom = path_slash_sys;
480 *fstype = fstype_sysfs;
481 } else {
482 /* For Linux msdosfs is called vfat */
483 if (strcmp(*fstype, "msdosfs") == 0)
484 *fstype = "vfat";
485 }
486 return (0);
487 }
488
489 static void
_sbuf_mntoptions_helper(struct sbuf * sb,uint64_t f_flags)490 _sbuf_mntoptions_helper(struct sbuf *sb, uint64_t f_flags)
491 {
492 sbuf_cat(sb, (f_flags & MNT_RDONLY) ? "ro" : "rw");
493 #define ADD_OPTION(opt, name) \
494 if (f_flags & (opt)) sbuf_cat(sb, "," name);
495 ADD_OPTION(MNT_SYNCHRONOUS, "sync");
496 ADD_OPTION(MNT_NOEXEC, "noexec");
497 ADD_OPTION(MNT_NOSUID, "nosuid");
498 ADD_OPTION(MNT_UNION, "union");
499 ADD_OPTION(MNT_ASYNC, "async");
500 ADD_OPTION(MNT_SUIDDIR, "suiddir");
501 ADD_OPTION(MNT_NOSYMFOLLOW, "nosymfollow");
502 ADD_OPTION(MNT_NOATIME, "noatime");
503 #undef ADD_OPTION
504 }
505
506 /*
507 * Filler function for proc/mtab and proc/<pid>/mounts.
508 *
509 * /proc/mtab doesn't exist in Linux' procfs, but is included here so
510 * users can symlink /compat/linux/etc/mtab to /proc/mtab
511 */
512 static int
linprocfs_domtab(PFS_FILL_ARGS)513 linprocfs_domtab(PFS_FILL_ARGS)
514 {
515 const char *mntto, *mntfrom, *fstype;
516 char *dlep, *flep;
517 struct vnode *vp;
518 struct pwd *pwd;
519 size_t lep_len;
520 int error;
521 struct statfs *buf, *sp;
522 size_t count;
523
524 /*
525 * Resolve emulation tree prefix
526 */
527 flep = NULL;
528 pwd = pwd_hold(td);
529 vp = pwd->pwd_adir;
530 error = vn_fullpath_global(vp, &dlep, &flep);
531 pwd_drop(pwd);
532 if (error != 0)
533 return (error);
534 lep_len = strlen(dlep);
535
536 buf = NULL;
537 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count,
538 UIO_SYSSPACE, MNT_WAIT);
539 if (error != 0) {
540 goto out;
541 }
542
543 for (sp = buf; count > 0; sp++, count--) {
544 error = _mtab_helper(pn, sp, &mntfrom, &mntto, &fstype);
545 if (error != 0) {
546 MPASS(error == ECANCELED);
547 continue;
548 }
549
550 /* determine mount point */
551 if (strncmp(mntto, dlep, lep_len) == 0 && mntto[lep_len] == '/')
552 mntto += lep_len;
553
554 sbuf_printf(sb, "%s %s %s ", mntfrom, mntto, fstype);
555 _sbuf_mntoptions_helper(sb, sp->f_flags);
556 /* a real Linux mtab will also show NFS options */
557 sbuf_printf(sb, " 0 0\n");
558 }
559
560 error = 0;
561 out:
562 free(buf, M_TEMP);
563 free(flep, M_TEMP);
564 return (error);
565 }
566
567 static int
linprocfs_doprocmountinfo(PFS_FILL_ARGS)568 linprocfs_doprocmountinfo(PFS_FILL_ARGS)
569 {
570 const char *mntfrom, *mntto, *fstype;
571 char *dlep, *flep;
572 struct statfs *buf, *sp;
573 size_t count, lep_len;
574 struct vnode *vp;
575 struct pwd *pwd;
576 int error;
577
578 /*
579 * Resolve emulation tree prefix
580 */
581 flep = NULL;
582 pwd = pwd_hold(td);
583 vp = pwd->pwd_adir;
584 error = vn_fullpath_global(vp, &dlep, &flep);
585 pwd_drop(pwd);
586 if (error != 0)
587 return (error);
588 lep_len = strlen(dlep);
589
590 buf = NULL;
591 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count,
592 UIO_SYSSPACE, MNT_WAIT);
593 if (error != 0)
594 goto out;
595
596 for (sp = buf; count > 0; sp++, count--) {
597 error = _mtab_helper(pn, sp, &mntfrom, &mntto, &fstype);
598 if (error != 0) {
599 MPASS(error == ECANCELED);
600 continue;
601 }
602
603 if (strncmp(mntto, dlep, lep_len) == 0 && mntto[lep_len] == '/')
604 mntto += lep_len;
605 #if 0
606 /*
607 * If the prefix is a chroot, and this mountpoint is not under
608 * the prefix, we should skip it. Leave it for now for
609 * consistency with procmtab above.
610 */
611 else
612 continue;
613 #endif
614
615 /*
616 * (1) mount id
617 *
618 * (2) parent mount id -- we don't have this cheaply, so
619 * provide a dummy value
620 *
621 * (3) major:minor -- ditto
622 *
623 * (4) root filesystem mount -- probably a namespaces thing
624 *
625 * (5) mountto path
626 */
627 sbuf_printf(sb, "%u 0 0:0 / %s ",
628 sp->f_fsid.val[0] ^ sp->f_fsid.val[1], mntto);
629 /* (6) mount options */
630 _sbuf_mntoptions_helper(sb, sp->f_flags);
631 /*
632 * (7) zero or more optional fields -- again, namespace related
633 *
634 * (8) End of variable length fields separator ("-")
635 *
636 * (9) fstype
637 *
638 * (10) mount from
639 *
640 * (11) "superblock" options -- like (6), but different
641 * semantics in Linux
642 */
643 sbuf_printf(sb, " - %s %s %s\n", fstype, mntfrom,
644 (sp->f_flags & MNT_RDONLY) ? "ro" : "rw");
645 }
646
647 error = 0;
648 out:
649 free(buf, M_TEMP);
650 free(flep, M_TEMP);
651 return (error);
652 }
653
654 /*
655 * Filler function for proc/partitions
656 */
657 static int
linprocfs_dopartitions(PFS_FILL_ARGS)658 linprocfs_dopartitions(PFS_FILL_ARGS)
659 {
660 struct g_class *cp;
661 struct g_geom *gp;
662 struct g_provider *pp;
663 int major, minor;
664
665 g_topology_lock();
666 sbuf_printf(sb, "major minor #blocks name rio rmerge rsect "
667 "ruse wio wmerge wsect wuse running use aveq\n");
668
669 LIST_FOREACH(cp, &g_classes, class) {
670 if (strcmp(cp->name, "DISK") == 0 ||
671 strcmp(cp->name, "PART") == 0)
672 LIST_FOREACH(gp, &cp->geom, geom) {
673 LIST_FOREACH(pp, &gp->provider, provider) {
674 if (linux_driver_get_major_minor(
675 pp->name, &major, &minor) != 0) {
676 major = 0;
677 minor = 0;
678 }
679 sbuf_printf(sb, "%d %d %lld %s "
680 "%d %d %d %d %d "
681 "%d %d %d %d %d %d\n",
682 major, minor,
683 (long long)pp->mediasize, pp->name,
684 0, 0, 0, 0, 0,
685 0, 0, 0, 0, 0, 0);
686 }
687 }
688 }
689 g_topology_unlock();
690
691 return (0);
692 }
693
694 /*
695 * Filler function for proc/stat
696 *
697 * Output depends on kernel version:
698 *
699 * v2.5.40 <=
700 * user nice system idle
701 * v2.5.41
702 * user nice system idle iowait
703 * v2.6.11
704 * user nice system idle iowait irq softirq steal
705 * v2.6.24
706 * user nice system idle iowait irq softirq steal guest
707 * v2.6.33 >=
708 * user nice system idle iowait irq softirq steal guest guest_nice
709 */
710 static int
linprocfs_dostat(PFS_FILL_ARGS)711 linprocfs_dostat(PFS_FILL_ARGS)
712 {
713 struct pcpu *pcpu;
714 long cp_time[CPUSTATES];
715 long *cp;
716 struct timeval boottime;
717 int i;
718 char *zero_pad;
719 bool has_intr = true;
720
721 if (linux_kernver(td) >= LINUX_KERNVER(2,6,33)) {
722 zero_pad = " 0 0 0 0\n";
723 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,24)) {
724 zero_pad = " 0 0 0\n";
725 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,11)) {
726 zero_pad = " 0 0\n";
727 } else if (linux_kernver(td) >= LINUX_KERNVER(2,5,41)) {
728 has_intr = false;
729 zero_pad = " 0\n";
730 } else {
731 has_intr = false;
732 zero_pad = "\n";
733 }
734
735 read_cpu_time(cp_time);
736 getboottime(&boottime);
737 /* Parameters common to all versions */
738 sbuf_printf(sb, "cpu %lu %lu %lu %lu",
739 T2J(cp_time[CP_USER]),
740 T2J(cp_time[CP_NICE]),
741 T2J(cp_time[CP_SYS]),
742 T2J(cp_time[CP_IDLE]));
743
744 /* Print interrupt stats if available */
745 if (has_intr) {
746 sbuf_printf(sb, " 0 %lu", T2J(cp_time[CP_INTR]));
747 }
748
749 /* Pad out remaining fields depending on version */
750 sbuf_printf(sb, "%s", zero_pad);
751
752 CPU_FOREACH(i) {
753 pcpu = pcpu_find(i);
754 cp = pcpu->pc_cp_time;
755 sbuf_printf(sb, "cpu%d %lu %lu %lu %lu", i,
756 T2J(cp[CP_USER]),
757 T2J(cp[CP_NICE]),
758 T2J(cp[CP_SYS]),
759 T2J(cp[CP_IDLE]));
760
761 if (has_intr) {
762 sbuf_printf(sb, " 0 %lu", T2J(cp[CP_INTR]));
763 }
764
765 sbuf_printf(sb, "%s", zero_pad);
766 }
767 sbuf_printf(sb,
768 "disk 0 0 0 0\n"
769 "page %ju %ju\n"
770 "swap %ju %ju\n"
771 "intr %ju\n"
772 "ctxt %ju\n"
773 "btime %lld\n",
774 (uintmax_t)VM_CNT_FETCH(v_vnodepgsin),
775 (uintmax_t)VM_CNT_FETCH(v_vnodepgsout),
776 (uintmax_t)VM_CNT_FETCH(v_swappgsin),
777 (uintmax_t)VM_CNT_FETCH(v_swappgsout),
778 (uintmax_t)VM_CNT_FETCH(v_intr),
779 (uintmax_t)VM_CNT_FETCH(v_swtch),
780 (long long)boottime.tv_sec);
781 return (0);
782 }
783
784 static int
linprocfs_doswaps(PFS_FILL_ARGS)785 linprocfs_doswaps(PFS_FILL_ARGS)
786 {
787 struct xswdev xsw;
788 uintmax_t total, used;
789 int n;
790 char devname[SPECNAMELEN + 1];
791
792 sbuf_printf(sb, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
793 for (n = 0; ; n++) {
794 if (swap_dev_info(n, &xsw, devname, sizeof(devname)) != 0)
795 break;
796 total = (uintmax_t)xsw.xsw_nblks * PAGE_SIZE / 1024;
797 used = (uintmax_t)xsw.xsw_used * PAGE_SIZE / 1024;
798
799 /*
800 * The space and not tab after the device name is on
801 * purpose. Linux does so.
802 */
803 sbuf_printf(sb, "/dev/%-34s unknown\t\t%jd\t%jd\t-1\n",
804 devname, total, used);
805 }
806 return (0);
807 }
808
809 /*
810 * Filler function for proc/uptime
811 */
812 static int
linprocfs_douptime(PFS_FILL_ARGS)813 linprocfs_douptime(PFS_FILL_ARGS)
814 {
815 long cp_time[CPUSTATES];
816 struct timeval tv;
817
818 getmicrouptime(&tv);
819 read_cpu_time(cp_time);
820 sbuf_printf(sb, "%lld.%02ld %ld.%02lu\n",
821 (long long)tv.tv_sec, tv.tv_usec / 10000,
822 T2S(cp_time[CP_IDLE] / mp_ncpus),
823 T2CS(cp_time[CP_IDLE] / mp_ncpus) % 100);
824 return (0);
825 }
826
827 /*
828 * Get OS build date
829 */
830 static void
linprocfs_osbuild(struct thread * td,struct sbuf * sb)831 linprocfs_osbuild(struct thread *td, struct sbuf *sb)
832 {
833 #if 0
834 char osbuild[256];
835 char *cp1, *cp2;
836
837 strncpy(osbuild, version, 256);
838 osbuild[255] = '\0';
839 cp1 = strstr(osbuild, "\n");
840 cp2 = strstr(osbuild, ":");
841 if (cp1 && cp2) {
842 *cp1 = *cp2 = '\0';
843 cp1 = strstr(osbuild, "#");
844 } else
845 cp1 = NULL;
846 if (cp1)
847 sbuf_printf(sb, "%s%s", cp1, cp2 + 1);
848 else
849 #endif
850 sbuf_cat(sb, "#4 Sun Dec 18 04:30:00 CET 1977");
851 }
852
853 /*
854 * Get OS builder
855 */
856 static void
linprocfs_osbuilder(struct thread * td,struct sbuf * sb)857 linprocfs_osbuilder(struct thread *td, struct sbuf *sb)
858 {
859 #if 0
860 char builder[256];
861 char *cp;
862
863 cp = strstr(version, "\n ");
864 if (cp) {
865 strncpy(builder, cp + 5, 256);
866 builder[255] = '\0';
867 cp = strstr(builder, ":");
868 if (cp)
869 *cp = '\0';
870 }
871 if (cp)
872 sbuf_cat(sb, builder);
873 else
874 #endif
875 sbuf_cat(sb, "des@freebsd.org");
876 }
877
878 /*
879 * Filler function for proc/version
880 */
881 static int
linprocfs_doversion(PFS_FILL_ARGS)882 linprocfs_doversion(PFS_FILL_ARGS)
883 {
884 char osname[LINUX_MAX_UTSNAME];
885 char osrelease[LINUX_MAX_UTSNAME];
886
887 linux_get_osname(td, osname);
888 linux_get_osrelease(td, osrelease);
889 sbuf_printf(sb, "%s version %s (", osname, osrelease);
890 linprocfs_osbuilder(td, sb);
891 sbuf_cat(sb, ") (gcc version " __VERSION__ ") ");
892 linprocfs_osbuild(td, sb);
893 sbuf_cat(sb, "\n");
894
895 return (0);
896 }
897
898 /*
899 * Filler function for proc/loadavg
900 */
901 static int
linprocfs_doloadavg(PFS_FILL_ARGS)902 linprocfs_doloadavg(PFS_FILL_ARGS)
903 {
904
905 sbuf_printf(sb,
906 "%d.%02d %d.%02d %d.%02d %d/%d %d\n",
907 (int)(averunnable.ldavg[0] / averunnable.fscale),
908 (int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100),
909 (int)(averunnable.ldavg[1] / averunnable.fscale),
910 (int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100),
911 (int)(averunnable.ldavg[2] / averunnable.fscale),
912 (int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100),
913 1, /* number of running tasks */
914 nprocs, /* number of tasks */
915 lastpid /* the last pid */
916 );
917 return (0);
918 }
919
920 static int
linprocfs_get_tty_nr(struct proc * p)921 linprocfs_get_tty_nr(struct proc *p)
922 {
923 struct session *sp;
924 const char *ttyname;
925 int error, major, minor, nr;
926
927 PROC_LOCK_ASSERT(p, MA_OWNED);
928 sx_assert(&proctree_lock, SX_LOCKED);
929
930 if ((p->p_flag & P_CONTROLT) == 0)
931 return (-1);
932
933 sp = p->p_pgrp->pg_session;
934 if (sp == NULL)
935 return (-1);
936
937 ttyname = devtoname(sp->s_ttyp->t_dev);
938 error = linux_driver_get_major_minor(ttyname, &major, &minor);
939 if (error != 0)
940 return (-1);
941
942 nr = makedev(major, minor);
943 return (nr);
944 }
945
946 /*
947 * Filler function for proc/pid/stat
948 */
949 static int
linprocfs_doprocstat(PFS_FILL_ARGS)950 linprocfs_doprocstat(PFS_FILL_ARGS)
951 {
952 struct kinfo_proc kp;
953 struct timeval boottime;
954 char state;
955 static int ratelimit = 0;
956 int tty_nr;
957 vm_offset_t startcode, startdata;
958
959 getboottime(&boottime);
960 sx_slock(&proctree_lock);
961 PROC_LOCK(p);
962 fill_kinfo_proc(p, &kp);
963 tty_nr = linprocfs_get_tty_nr(p);
964 sx_sunlock(&proctree_lock);
965 if (p->p_vmspace) {
966 startcode = (vm_offset_t)p->p_vmspace->vm_taddr;
967 startdata = (vm_offset_t)p->p_vmspace->vm_daddr;
968 } else {
969 startcode = 0;
970 startdata = 0;
971 }
972 sbuf_printf(sb, "%d", p->p_pid);
973 #define PS_ADD(name, fmt, arg) sbuf_printf(sb, " " fmt, arg)
974 PS_ADD("comm", "(%s)", p->p_comm);
975 if (kp.ki_stat > sizeof(linux_state)) {
976 state = 'R';
977
978 if (ratelimit == 0) {
979 printf("linprocfs: don't know how to handle unknown FreeBSD state %d/%zd, mapping to R\n",
980 kp.ki_stat, sizeof(linux_state));
981 ++ratelimit;
982 }
983 } else
984 state = linux_state[kp.ki_stat - 1];
985 PS_ADD("state", "%c", state);
986 PS_ADD("ppid", "%d", p->p_pptr ? p->p_pptr->p_pid : 0);
987 PS_ADD("pgrp", "%d", p->p_pgid);
988 PS_ADD("session", "%d", p->p_session->s_sid);
989 PROC_UNLOCK(p);
990 PS_ADD("tty", "%d", tty_nr);
991 PS_ADD("tpgid", "%d", kp.ki_tpgid);
992 PS_ADD("flags", "%u", 0); /* XXX */
993 PS_ADD("minflt", "%lu", kp.ki_rusage.ru_minflt);
994 PS_ADD("cminflt", "%lu", kp.ki_rusage_ch.ru_minflt);
995 PS_ADD("majflt", "%lu", kp.ki_rusage.ru_majflt);
996 PS_ADD("cmajflt", "%lu", kp.ki_rusage_ch.ru_majflt);
997 PS_ADD("utime", "%ld", TV2J(&kp.ki_rusage.ru_utime));
998 PS_ADD("stime", "%ld", TV2J(&kp.ki_rusage.ru_stime));
999 PS_ADD("cutime", "%ld", TV2J(&kp.ki_rusage_ch.ru_utime));
1000 PS_ADD("cstime", "%ld", TV2J(&kp.ki_rusage_ch.ru_stime));
1001 PS_ADD("priority", "%d", kp.ki_pri.pri_user);
1002 PS_ADD("nice", "%d", kp.ki_nice); /* 19 (nicest) to -19 */
1003 PS_ADD("0", "%d", 0); /* removed field */
1004 PS_ADD("itrealvalue", "%d", 0); /* XXX */
1005 PS_ADD("starttime", "%lu", TV2J(&kp.ki_start) - TV2J(&boottime));
1006 PS_ADD("vsize", "%ju", (uintmax_t)kp.ki_size);
1007 PS_ADD("rss", "%ju", (uintmax_t)kp.ki_rssize);
1008 PS_ADD("rlim", "%lu", kp.ki_rusage.ru_maxrss);
1009 PS_ADD("startcode", "%ju", (uintmax_t)startcode);
1010 PS_ADD("endcode", "%ju", (uintmax_t)startdata);
1011 PS_ADD("startstack", "%u", 0); /* XXX */
1012 PS_ADD("kstkesp", "%u", 0); /* XXX */
1013 PS_ADD("kstkeip", "%u", 0); /* XXX */
1014 PS_ADD("signal", "%u", 0); /* XXX */
1015 PS_ADD("blocked", "%u", 0); /* XXX */
1016 PS_ADD("sigignore", "%u", 0); /* XXX */
1017 PS_ADD("sigcatch", "%u", 0); /* XXX */
1018 PS_ADD("wchan", "%u", 0); /* XXX */
1019 PS_ADD("nswap", "%lu", kp.ki_rusage.ru_nswap);
1020 PS_ADD("cnswap", "%lu", kp.ki_rusage_ch.ru_nswap);
1021 PS_ADD("exitsignal", "%d", 0); /* XXX */
1022 PS_ADD("processor", "%u", kp.ki_lastcpu);
1023 PS_ADD("rt_priority", "%u", 0); /* XXX */ /* >= 2.5.19 */
1024 PS_ADD("policy", "%u", kp.ki_pri.pri_class); /* >= 2.5.19 */
1025 #undef PS_ADD
1026 sbuf_putc(sb, '\n');
1027
1028 return (0);
1029 }
1030
1031 /*
1032 * Filler function for proc/pid/statm
1033 */
1034 static int
linprocfs_doprocstatm(PFS_FILL_ARGS)1035 linprocfs_doprocstatm(PFS_FILL_ARGS)
1036 {
1037 struct kinfo_proc kp;
1038 segsz_t lsize;
1039
1040 sx_slock(&proctree_lock);
1041 PROC_LOCK(p);
1042 fill_kinfo_proc(p, &kp);
1043 PROC_UNLOCK(p);
1044 sx_sunlock(&proctree_lock);
1045
1046 /*
1047 * See comments in linprocfs_doprocstatus() regarding the
1048 * computation of lsize.
1049 */
1050 /* size resident share trs drs lrs dt */
1051 sbuf_printf(sb, "%ju ", B2P((uintmax_t)kp.ki_size));
1052 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_rssize);
1053 sbuf_printf(sb, "%ju ", (uintmax_t)0); /* XXX */
1054 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_tsize);
1055 sbuf_printf(sb, "%ju ", (uintmax_t)(kp.ki_dsize + kp.ki_ssize));
1056 lsize = B2P(kp.ki_size) - kp.ki_dsize -
1057 kp.ki_ssize - kp.ki_tsize - 1;
1058 sbuf_printf(sb, "%ju ", (uintmax_t)lsize);
1059 sbuf_printf(sb, "%ju\n", (uintmax_t)0); /* XXX */
1060
1061 return (0);
1062 }
1063
1064 /*
1065 * Filler function for proc/pid/status
1066 */
1067 static int
linprocfs_doprocstatus(PFS_FILL_ARGS)1068 linprocfs_doprocstatus(PFS_FILL_ARGS)
1069 {
1070 struct kinfo_proc kp;
1071 char *state;
1072 segsz_t lsize;
1073 struct thread *td2;
1074 struct sigacts *ps;
1075 l_sigset_t siglist, sigignore, sigcatch;
1076 int i;
1077
1078 sx_slock(&proctree_lock);
1079 PROC_LOCK(p);
1080 td2 = FIRST_THREAD_IN_PROC(p);
1081
1082 if (P_SHOULDSTOP(p)) {
1083 state = "T (stopped)";
1084 } else {
1085 switch(p->p_state) {
1086 case PRS_NEW:
1087 state = "I (idle)";
1088 break;
1089 case PRS_NORMAL:
1090 if (p->p_flag & P_WEXIT) {
1091 state = "X (exiting)";
1092 break;
1093 }
1094 switch(TD_GET_STATE(td2)) {
1095 case TDS_INHIBITED:
1096 state = "S (sleeping)";
1097 break;
1098 case TDS_RUNQ:
1099 case TDS_RUNNING:
1100 state = "R (running)";
1101 break;
1102 default:
1103 state = "? (unknown)";
1104 break;
1105 }
1106 break;
1107 case PRS_ZOMBIE:
1108 state = "Z (zombie)";
1109 break;
1110 default:
1111 state = "? (unknown)";
1112 break;
1113 }
1114 }
1115
1116 fill_kinfo_proc(p, &kp);
1117 sx_sunlock(&proctree_lock);
1118
1119 sbuf_printf(sb, "Name:\t%s\n", p->p_comm); /* XXX escape */
1120 sbuf_printf(sb, "State:\t%s\n", state);
1121
1122 /*
1123 * Credentials
1124 */
1125 sbuf_printf(sb, "Tgid:\t%d\n", p->p_pid);
1126 sbuf_printf(sb, "Pid:\t%d\n", p->p_pid);
1127 sbuf_printf(sb, "PPid:\t%d\n", kp.ki_ppid );
1128 sbuf_printf(sb, "TracerPid:\t%d\n", kp.ki_tracer );
1129 sbuf_printf(sb, "Uid:\t%d\t%d\t%d\t%d\n", p->p_ucred->cr_ruid,
1130 p->p_ucred->cr_uid,
1131 p->p_ucred->cr_svuid,
1132 /* FreeBSD doesn't have fsuid */
1133 p->p_ucred->cr_uid);
1134 sbuf_printf(sb, "Gid:\t%d\t%d\t%d\t%d\n", p->p_ucred->cr_rgid,
1135 p->p_ucred->cr_gid,
1136 p->p_ucred->cr_svgid,
1137 /* FreeBSD doesn't have fsgid */
1138 p->p_ucred->cr_gid);
1139 sbuf_cat(sb, "Groups:\t");
1140 for (i = 0; i < p->p_ucred->cr_ngroups; i++)
1141 sbuf_printf(sb, "%d ", p->p_ucred->cr_groups[i]);
1142 PROC_UNLOCK(p);
1143 sbuf_putc(sb, '\n');
1144
1145 /*
1146 * Memory
1147 *
1148 * While our approximation of VmLib may not be accurate (I
1149 * don't know of a simple way to verify it, and I'm not sure
1150 * it has much meaning anyway), I believe it's good enough.
1151 *
1152 * The same code that could (I think) accurately compute VmLib
1153 * could also compute VmLck, but I don't really care enough to
1154 * implement it. Submissions are welcome.
1155 */
1156 sbuf_printf(sb, "VmSize:\t%8ju kB\n", B2K((uintmax_t)kp.ki_size));
1157 sbuf_printf(sb, "VmLck:\t%8u kB\n", P2K(0)); /* XXX */
1158 sbuf_printf(sb, "VmRSS:\t%8ju kB\n", P2K((uintmax_t)kp.ki_rssize));
1159 sbuf_printf(sb, "VmData:\t%8ju kB\n", P2K((uintmax_t)kp.ki_dsize));
1160 sbuf_printf(sb, "VmStk:\t%8ju kB\n", P2K((uintmax_t)kp.ki_ssize));
1161 sbuf_printf(sb, "VmExe:\t%8ju kB\n", P2K((uintmax_t)kp.ki_tsize));
1162 lsize = B2P(kp.ki_size) - kp.ki_dsize -
1163 kp.ki_ssize - kp.ki_tsize - 1;
1164 sbuf_printf(sb, "VmLib:\t%8ju kB\n", P2K((uintmax_t)lsize));
1165
1166 /*
1167 * Signal masks
1168 */
1169 PROC_LOCK(p);
1170 bsd_to_linux_sigset(&p->p_siglist, &siglist);
1171 ps = p->p_sigacts;
1172 mtx_lock(&ps->ps_mtx);
1173 bsd_to_linux_sigset(&ps->ps_sigignore, &sigignore);
1174 bsd_to_linux_sigset(&ps->ps_sigcatch, &sigcatch);
1175 mtx_unlock(&ps->ps_mtx);
1176 PROC_UNLOCK(p);
1177
1178 sbuf_printf(sb, "SigPnd:\t%016jx\n", siglist.__mask);
1179 /*
1180 * XXX. SigBlk - target thread's signal mask, td_sigmask.
1181 * To implement SigBlk pseudofs should support proc/tid dir entries.
1182 */
1183 sbuf_printf(sb, "SigBlk:\t%016x\n", 0);
1184 sbuf_printf(sb, "SigIgn:\t%016jx\n", sigignore.__mask);
1185 sbuf_printf(sb, "SigCgt:\t%016jx\n", sigcatch.__mask);
1186
1187 /*
1188 * Linux also prints the capability masks, but we don't have
1189 * capabilities yet, and when we do get them they're likely to
1190 * be meaningless to Linux programs, so we lie. XXX
1191 */
1192 sbuf_printf(sb, "CapInh:\t%016x\n", 0);
1193 sbuf_printf(sb, "CapPrm:\t%016x\n", 0);
1194 sbuf_printf(sb, "CapEff:\t%016x\n", 0);
1195
1196 return (0);
1197 }
1198
1199 /*
1200 * Filler function for proc/pid/cwd
1201 */
1202 static int
linprocfs_doproccwd(PFS_FILL_ARGS)1203 linprocfs_doproccwd(PFS_FILL_ARGS)
1204 {
1205 struct pwd *pwd;
1206 char *fullpath = "unknown";
1207 char *freepath = NULL;
1208
1209 pwd = pwd_hold_proc(p);
1210 vn_fullpath(pwd->pwd_cdir, &fullpath, &freepath);
1211 sbuf_printf(sb, "%s", fullpath);
1212 if (freepath)
1213 free(freepath, M_TEMP);
1214 pwd_drop(pwd);
1215 return (0);
1216 }
1217
1218 /*
1219 * Filler function for proc/pid/root
1220 */
1221 static int
linprocfs_doprocroot(PFS_FILL_ARGS)1222 linprocfs_doprocroot(PFS_FILL_ARGS)
1223 {
1224 struct pwd *pwd;
1225 struct vnode *vp;
1226 char *fullpath = "unknown";
1227 char *freepath = NULL;
1228
1229 pwd = pwd_hold_proc(p);
1230 vp = jailed(p->p_ucred) ? pwd->pwd_jdir : pwd->pwd_rdir;
1231 vn_fullpath(vp, &fullpath, &freepath);
1232 sbuf_printf(sb, "%s", fullpath);
1233 if (freepath)
1234 free(freepath, M_TEMP);
1235 pwd_drop(pwd);
1236 return (0);
1237 }
1238
1239 /*
1240 * Filler function for proc/pid/cmdline
1241 */
1242 static int
linprocfs_doproccmdline(PFS_FILL_ARGS)1243 linprocfs_doproccmdline(PFS_FILL_ARGS)
1244 {
1245 int ret;
1246
1247 PROC_LOCK(p);
1248 if ((ret = p_cansee(td, p)) != 0) {
1249 PROC_UNLOCK(p);
1250 return (ret);
1251 }
1252
1253 /*
1254 * Mimic linux behavior and pass only processes with usermode
1255 * address space as valid. Return zero silently otherwize.
1256 */
1257 if (p->p_vmspace == &vmspace0) {
1258 PROC_UNLOCK(p);
1259 return (0);
1260 }
1261 if (p->p_args != NULL) {
1262 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length);
1263 PROC_UNLOCK(p);
1264 return (0);
1265 }
1266
1267 if ((p->p_flag & P_SYSTEM) != 0) {
1268 PROC_UNLOCK(p);
1269 return (0);
1270 }
1271
1272 PROC_UNLOCK(p);
1273
1274 ret = proc_getargv(td, p, sb);
1275 return (ret);
1276 }
1277
1278 /*
1279 * Filler function for proc/pid/environ
1280 */
1281 static int
linprocfs_doprocenviron(PFS_FILL_ARGS)1282 linprocfs_doprocenviron(PFS_FILL_ARGS)
1283 {
1284
1285 /*
1286 * Mimic linux behavior and pass only processes with usermode
1287 * address space as valid. Return zero silently otherwize.
1288 */
1289 if (p->p_vmspace == &vmspace0)
1290 return (0);
1291
1292 return (proc_getenvv(td, p, sb));
1293 }
1294
1295 static char l32_map_str[] = "%08lx-%08lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n";
1296 static char l64_map_str[] = "%016lx-%016lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n";
1297 static char vdso_str[] = " [vdso]";
1298 static char stack_str[] = " [stack]";
1299
1300 /*
1301 * Filler function for proc/pid/maps
1302 */
1303 static int
linprocfs_doprocmaps(PFS_FILL_ARGS)1304 linprocfs_doprocmaps(PFS_FILL_ARGS)
1305 {
1306 struct vmspace *vm;
1307 vm_map_t map;
1308 vm_map_entry_t entry, tmp_entry;
1309 vm_object_t obj, tobj, lobj;
1310 vm_offset_t e_start, e_end;
1311 vm_ooffset_t off;
1312 vm_prot_t e_prot;
1313 unsigned int last_timestamp;
1314 char *name = "", *freename = NULL;
1315 const char *l_map_str;
1316 ino_t ino;
1317 int error;
1318 struct vnode *vp;
1319 struct vattr vat;
1320 bool private;
1321
1322 PROC_LOCK(p);
1323 error = p_candebug(td, p);
1324 PROC_UNLOCK(p);
1325 if (error)
1326 return (error);
1327
1328 if (uio->uio_rw != UIO_READ)
1329 return (EOPNOTSUPP);
1330
1331 error = 0;
1332 vm = vmspace_acquire_ref(p);
1333 if (vm == NULL)
1334 return (ESRCH);
1335
1336 if (SV_CURPROC_FLAG(SV_LP64))
1337 l_map_str = l64_map_str;
1338 else
1339 l_map_str = l32_map_str;
1340 map = &vm->vm_map;
1341 vm_map_lock_read(map);
1342 VM_MAP_ENTRY_FOREACH(entry, map) {
1343 name = "";
1344 freename = NULL;
1345 /*
1346 * Skip printing of the guard page of the stack region, as
1347 * it confuses glibc pthread_getattr_np() method, where both
1348 * the base address and size of the stack of the initial thread
1349 * are calculated.
1350 */
1351 if ((entry->eflags & (MAP_ENTRY_IS_SUB_MAP | MAP_ENTRY_GUARD)) != 0)
1352 continue;
1353 e_prot = entry->protection;
1354 e_start = entry->start;
1355 e_end = entry->end;
1356 obj = entry->object.vm_object;
1357 off = entry->offset;
1358 for (lobj = tobj = obj; tobj != NULL;
1359 lobj = tobj, tobj = tobj->backing_object) {
1360 VM_OBJECT_RLOCK(tobj);
1361 off += lobj->backing_object_offset;
1362 if (lobj != obj)
1363 VM_OBJECT_RUNLOCK(lobj);
1364 }
1365 private = (entry->eflags & MAP_ENTRY_COW) != 0 || obj == NULL ||
1366 (obj->flags & OBJ_ANON) != 0;
1367 last_timestamp = map->timestamp;
1368 vm_map_unlock_read(map);
1369 ino = 0;
1370 if (lobj) {
1371 vp = vm_object_vnode(lobj);
1372 if (vp != NULL)
1373 vref(vp);
1374 if (lobj != obj)
1375 VM_OBJECT_RUNLOCK(lobj);
1376 VM_OBJECT_RUNLOCK(obj);
1377 if (vp != NULL) {
1378 vn_fullpath(vp, &name, &freename);
1379 vn_lock(vp, LK_SHARED | LK_RETRY);
1380 VOP_GETATTR(vp, &vat, td->td_ucred);
1381 ino = vat.va_fileid;
1382 vput(vp);
1383 } else if (SV_PROC_ABI(p) == SV_ABI_LINUX) {
1384 /*
1385 * sv_shared_page_base pointed out to the
1386 * FreeBSD sharedpage, PAGE_SIZE is a size
1387 * of it. The vDSO page is above.
1388 */
1389 if (e_start == p->p_sysent->sv_shared_page_base +
1390 PAGE_SIZE)
1391 name = vdso_str;
1392 if (e_end == p->p_sysent->sv_usrstack)
1393 name = stack_str;
1394 }
1395 }
1396
1397 /*
1398 * format:
1399 * start, end, access, offset, major, minor, inode, name.
1400 */
1401 error = sbuf_printf(sb, l_map_str,
1402 (u_long)e_start, (u_long)e_end,
1403 (e_prot & VM_PROT_READ)?"r":"-",
1404 (e_prot & VM_PROT_WRITE)?"w":"-",
1405 (e_prot & VM_PROT_EXECUTE)?"x":"-",
1406 private ? "p" : "s",
1407 (u_long)off,
1408 0,
1409 0,
1410 (u_long)ino,
1411 *name ? " " : " ",
1412 name
1413 );
1414 if (freename)
1415 free(freename, M_TEMP);
1416 vm_map_lock_read(map);
1417 if (error == -1) {
1418 error = 0;
1419 break;
1420 }
1421 if (last_timestamp != map->timestamp) {
1422 /*
1423 * Look again for the entry because the map was
1424 * modified while it was unlocked. Specifically,
1425 * the entry may have been clipped, merged, or deleted.
1426 */
1427 vm_map_lookup_entry(map, e_end - 1, &tmp_entry);
1428 entry = tmp_entry;
1429 }
1430 }
1431 vm_map_unlock_read(map);
1432 vmspace_free(vm);
1433
1434 return (error);
1435 }
1436
1437 /*
1438 * Filler function for proc/pid/mem
1439 */
1440 static int
linprocfs_doprocmem(PFS_FILL_ARGS)1441 linprocfs_doprocmem(PFS_FILL_ARGS)
1442 {
1443 ssize_t resid;
1444 int error;
1445
1446 resid = uio->uio_resid;
1447 error = procfs_doprocmem(PFS_FILL_ARGNAMES);
1448
1449 if (uio->uio_rw == UIO_READ && resid != uio->uio_resid)
1450 return (0);
1451
1452 if (error == EFAULT)
1453 error = EIO;
1454
1455 return (error);
1456 }
1457
1458 /*
1459 * Filler function for proc/net/dev
1460 */
1461 static int
linprocfs_donetdev_cb(if_t ifp,void * arg)1462 linprocfs_donetdev_cb(if_t ifp, void *arg)
1463 {
1464 char ifname[LINUX_IFNAMSIZ];
1465 struct sbuf *sb = arg;
1466
1467 if (ifname_bsd_to_linux_ifp(ifp, ifname, sizeof(ifname)) <= 0)
1468 return (ENODEV);
1469
1470 sbuf_printf(sb, "%6.6s: ", ifname);
1471 sbuf_printf(sb, "%7ju %7ju %4ju %4ju %4lu %5lu %10lu %9ju ",
1472 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IBYTES),
1473 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IPACKETS),
1474 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IERRORS),
1475 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IQDROPS),
1476 /* rx_missed_errors */
1477 0UL, /* rx_fifo_errors */
1478 0UL, /* rx_length_errors +
1479 * rx_over_errors +
1480 * rx_crc_errors +
1481 * rx_frame_errors */
1482 0UL, /* rx_compressed */
1483 (uintmax_t)if_getcounter(ifp, IFCOUNTER_IMCASTS));
1484 /* XXX-BZ rx only? */
1485 sbuf_printf(sb, "%8ju %7ju %4ju %4ju %4lu %5ju %7lu %10lu\n",
1486 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OBYTES),
1487 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OPACKETS),
1488 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OERRORS),
1489 (uintmax_t)if_getcounter(ifp, IFCOUNTER_OQDROPS),
1490 0UL, /* tx_fifo_errors */
1491 (uintmax_t)if_getcounter(ifp, IFCOUNTER_COLLISIONS),
1492 0UL, /* tx_carrier_errors +
1493 * tx_aborted_errors +
1494 * tx_window_errors +
1495 * tx_heartbeat_errors*/
1496 0UL); /* tx_compressed */
1497 return (0);
1498 }
1499
1500 static int
linprocfs_donetdev(PFS_FILL_ARGS)1501 linprocfs_donetdev(PFS_FILL_ARGS)
1502 {
1503 struct epoch_tracker et;
1504
1505 sbuf_printf(sb, "%6s|%58s|%s\n"
1506 "%6s|%58s|%58s\n",
1507 "Inter-", " Receive", " Transmit",
1508 " face",
1509 "bytes packets errs drop fifo frame compressed multicast",
1510 "bytes packets errs drop fifo colls carrier compressed");
1511
1512 CURVNET_SET(TD_TO_VNET(curthread));
1513 NET_EPOCH_ENTER(et);
1514 if_foreach(linprocfs_donetdev_cb, sb);
1515 NET_EPOCH_EXIT(et);
1516 CURVNET_RESTORE();
1517
1518 return (0);
1519 }
1520
1521 struct walkarg {
1522 struct sbuf *sb;
1523 };
1524
1525 static int
linux_route_print(struct rtentry * rt,void * vw)1526 linux_route_print(struct rtentry *rt, void *vw)
1527 {
1528 #ifdef INET
1529 struct walkarg *w = vw;
1530 struct route_nhop_data rnd;
1531 struct in_addr dst, mask;
1532 struct nhop_object *nh;
1533 char ifname[16];
1534 uint32_t scopeid = 0;
1535 uint32_t gw = 0;
1536 uint32_t linux_flags = 0;
1537
1538 rt_get_inet_prefix_pmask(rt, &dst, &mask, &scopeid);
1539
1540 rt_get_rnd(rt, &rnd);
1541
1542 /* select only first route in case of multipath */
1543 nh = nhop_select_func(rnd.rnd_nhop, 0);
1544
1545 if (ifname_bsd_to_linux_ifp(nh->nh_ifp, ifname, sizeof(ifname)) <= 0)
1546 return (ENODEV);
1547
1548 gw = (nh->nh_flags & NHF_GATEWAY)
1549 ? nh->gw4_sa.sin_addr.s_addr : 0;
1550
1551 linux_flags = RTF_UP |
1552 (nhop_get_rtflags(nh) & (RTF_GATEWAY | RTF_HOST));
1553
1554 sbuf_printf(w->sb,
1555 "%s\t"
1556 "%08X\t%08X\t%04X\t"
1557 "%d\t%u\t%d\t"
1558 "%08X\t%d\t%u\t%u",
1559 ifname,
1560 dst.s_addr, gw, linux_flags,
1561 0, 0, rnd.rnd_weight,
1562 mask.s_addr, nh->nh_mtu, 0, 0);
1563
1564 sbuf_printf(w->sb, "\n\n");
1565 #endif
1566 return (0);
1567 }
1568
1569 /*
1570 * Filler function for proc/net/route
1571 */
1572 static int
linprocfs_donetroute(PFS_FILL_ARGS)1573 linprocfs_donetroute(PFS_FILL_ARGS)
1574 {
1575 struct epoch_tracker et;
1576 struct walkarg w = {
1577 .sb = sb
1578 };
1579 uint32_t fibnum = curthread->td_proc->p_fibnum;
1580
1581 sbuf_printf(w.sb, "%-127s\n", "Iface\tDestination\tGateway "
1582 "\tFlags\tRefCnt\tUse\tMetric\tMask\t\tMTU"
1583 "\tWindow\tIRTT");
1584
1585 CURVNET_SET(TD_TO_VNET(curthread));
1586 NET_EPOCH_ENTER(et);
1587 rib_walk(fibnum, AF_INET, false, linux_route_print, &w);
1588 NET_EPOCH_EXIT(et);
1589 CURVNET_RESTORE();
1590
1591 return (0);
1592 }
1593
1594 /*
1595 * Filler function for proc/sys/kernel/osrelease
1596 */
1597 static int
linprocfs_doosrelease(PFS_FILL_ARGS)1598 linprocfs_doosrelease(PFS_FILL_ARGS)
1599 {
1600 char osrelease[LINUX_MAX_UTSNAME];
1601
1602 linux_get_osrelease(td, osrelease);
1603 sbuf_printf(sb, "%s\n", osrelease);
1604
1605 return (0);
1606 }
1607
1608 /*
1609 * Filler function for proc/sys/kernel/ostype
1610 */
1611 static int
linprocfs_doostype(PFS_FILL_ARGS)1612 linprocfs_doostype(PFS_FILL_ARGS)
1613 {
1614 char osname[LINUX_MAX_UTSNAME];
1615
1616 linux_get_osname(td, osname);
1617 sbuf_printf(sb, "%s\n", osname);
1618
1619 return (0);
1620 }
1621
1622 /*
1623 * Filler function for proc/sys/kernel/version
1624 */
1625 static int
linprocfs_doosbuild(PFS_FILL_ARGS)1626 linprocfs_doosbuild(PFS_FILL_ARGS)
1627 {
1628
1629 linprocfs_osbuild(td, sb);
1630 sbuf_cat(sb, "\n");
1631 return (0);
1632 }
1633
1634 /*
1635 * Filler function for proc/sys/kernel/msgmax
1636 */
1637 static int
linprocfs_domsgmax(PFS_FILL_ARGS)1638 linprocfs_domsgmax(PFS_FILL_ARGS)
1639 {
1640
1641 sbuf_printf(sb, "%d\n", msginfo.msgmax);
1642 return (0);
1643 }
1644
1645 /*
1646 * Filler function for proc/sys/kernel/msgmni
1647 */
1648 static int
linprocfs_domsgmni(PFS_FILL_ARGS)1649 linprocfs_domsgmni(PFS_FILL_ARGS)
1650 {
1651
1652 sbuf_printf(sb, "%d\n", msginfo.msgmni);
1653 return (0);
1654 }
1655
1656 /*
1657 * Filler function for proc/sys/kernel/msgmnb
1658 */
1659 static int
linprocfs_domsgmnb(PFS_FILL_ARGS)1660 linprocfs_domsgmnb(PFS_FILL_ARGS)
1661 {
1662
1663 sbuf_printf(sb, "%d\n", msginfo.msgmnb);
1664 return (0);
1665 }
1666
1667 /*
1668 * Filler function for proc/sys/kernel/ngroups_max
1669 *
1670 * Note that in Linux it defaults to 65536, not 1023.
1671 */
1672 static int
linprocfs_dongroups_max(PFS_FILL_ARGS)1673 linprocfs_dongroups_max(PFS_FILL_ARGS)
1674 {
1675
1676 sbuf_printf(sb, "%d\n", ngroups_max);
1677 return (0);
1678 }
1679
1680 /*
1681 * Filler function for proc/sys/kernel/pid_max
1682 */
1683 static int
linprocfs_dopid_max(PFS_FILL_ARGS)1684 linprocfs_dopid_max(PFS_FILL_ARGS)
1685 {
1686
1687 sbuf_printf(sb, "%i\n", PID_MAX);
1688 return (0);
1689 }
1690
1691 /*
1692 * Filler function for proc/sys/kernel/sem
1693 */
1694 static int
linprocfs_dosem(PFS_FILL_ARGS)1695 linprocfs_dosem(PFS_FILL_ARGS)
1696 {
1697
1698 sbuf_printf(sb, "%d %d %d %d\n", seminfo.semmsl, seminfo.semmns,
1699 seminfo.semopm, seminfo.semmni);
1700 return (0);
1701 }
1702
1703 /*
1704 * Filler function for proc/sys/kernel/shmall
1705 */
1706 static int
linprocfs_doshmall(PFS_FILL_ARGS)1707 linprocfs_doshmall(PFS_FILL_ARGS)
1708 {
1709
1710 sbuf_printf(sb, "%lu\n", shminfo.shmall);
1711 return (0);
1712 }
1713
1714 /*
1715 * Filler function for proc/sys/kernel/shmmax
1716 */
1717 static int
linprocfs_doshmmax(PFS_FILL_ARGS)1718 linprocfs_doshmmax(PFS_FILL_ARGS)
1719 {
1720
1721 sbuf_printf(sb, "%lu\n", shminfo.shmmax);
1722 return (0);
1723 }
1724
1725 /*
1726 * Filler function for proc/sys/kernel/shmmni
1727 */
1728 static int
linprocfs_doshmmni(PFS_FILL_ARGS)1729 linprocfs_doshmmni(PFS_FILL_ARGS)
1730 {
1731
1732 sbuf_printf(sb, "%lu\n", shminfo.shmmni);
1733 return (0);
1734 }
1735
1736 /*
1737 * Filler function for proc/sys/kernel/tainted
1738 */
1739 static int
linprocfs_dotainted(PFS_FILL_ARGS)1740 linprocfs_dotainted(PFS_FILL_ARGS)
1741 {
1742
1743 sbuf_printf(sb, "0\n");
1744 return (0);
1745 }
1746
1747 /*
1748 * Filler function for proc/sys/vm/min_free_kbytes
1749 *
1750 * This mirrors the approach in illumos to return zero for reads. Effectively,
1751 * it says, no memory is kept in reserve for "atomic allocations". This class
1752 * of allocation can be used at times when a thread cannot be suspended.
1753 */
1754 static int
linprocfs_dominfree(PFS_FILL_ARGS)1755 linprocfs_dominfree(PFS_FILL_ARGS)
1756 {
1757
1758 sbuf_printf(sb, "%d\n", 0);
1759 return (0);
1760 }
1761
1762 /*
1763 * Filler function for proc/scsi/device_info
1764 */
1765 static int
linprocfs_doscsidevinfo(PFS_FILL_ARGS)1766 linprocfs_doscsidevinfo(PFS_FILL_ARGS)
1767 {
1768
1769 return (0);
1770 }
1771
1772 /*
1773 * Filler function for proc/scsi/scsi
1774 */
1775 static int
linprocfs_doscsiscsi(PFS_FILL_ARGS)1776 linprocfs_doscsiscsi(PFS_FILL_ARGS)
1777 {
1778
1779 return (0);
1780 }
1781
1782 /*
1783 * Filler function for proc/devices
1784 */
1785 static int
linprocfs_dodevices(PFS_FILL_ARGS)1786 linprocfs_dodevices(PFS_FILL_ARGS)
1787 {
1788 char *char_devices;
1789 sbuf_printf(sb, "Character devices:\n");
1790
1791 char_devices = linux_get_char_devices();
1792 sbuf_printf(sb, "%s", char_devices);
1793 linux_free_get_char_devices(char_devices);
1794
1795 sbuf_printf(sb, "\nBlock devices:\n");
1796
1797 return (0);
1798 }
1799
1800 /*
1801 * Filler function for proc/cmdline
1802 */
1803 static int
linprocfs_docmdline(PFS_FILL_ARGS)1804 linprocfs_docmdline(PFS_FILL_ARGS)
1805 {
1806
1807 sbuf_printf(sb, "BOOT_IMAGE=%s", kernelname);
1808 sbuf_printf(sb, " ro root=302\n");
1809 return (0);
1810 }
1811
1812 /*
1813 * Filler function for proc/filesystems
1814 */
1815 static int
linprocfs_dofilesystems(PFS_FILL_ARGS)1816 linprocfs_dofilesystems(PFS_FILL_ARGS)
1817 {
1818 struct vfsconf *vfsp;
1819
1820 vfsconf_slock();
1821 TAILQ_FOREACH(vfsp, &vfsconf, vfc_list) {
1822 if (vfsp->vfc_flags & VFCF_SYNTHETIC)
1823 sbuf_printf(sb, "nodev");
1824 sbuf_printf(sb, "\t%s\n", vfsp->vfc_name);
1825 }
1826 vfsconf_sunlock();
1827 return(0);
1828 }
1829
1830 /*
1831 * Filler function for proc/modules
1832 */
1833 static int
linprocfs_domodules(PFS_FILL_ARGS)1834 linprocfs_domodules(PFS_FILL_ARGS)
1835 {
1836 #if 0
1837 struct linker_file *lf;
1838
1839 TAILQ_FOREACH(lf, &linker_files, link) {
1840 sbuf_printf(sb, "%-20s%8lu%4d\n", lf->filename,
1841 (unsigned long)lf->size, lf->refs);
1842 }
1843 #endif
1844 return (0);
1845 }
1846
1847 /*
1848 * Filler function for proc/pid/fd
1849 */
1850 static int
linprocfs_dofdescfs(PFS_FILL_ARGS)1851 linprocfs_dofdescfs(PFS_FILL_ARGS)
1852 {
1853
1854 if (p == curproc)
1855 sbuf_printf(sb, "/dev/fd");
1856 else
1857 sbuf_printf(sb, "unknown");
1858 return (0);
1859 }
1860
1861 /*
1862 * Filler function for proc/pid/limits
1863 */
1864 static const struct linux_rlimit_ident {
1865 const char *desc;
1866 const char *unit;
1867 unsigned int rlim_id;
1868 } linux_rlimits_ident[] = {
1869 { "Max cpu time", "seconds", RLIMIT_CPU },
1870 { "Max file size", "bytes", RLIMIT_FSIZE },
1871 { "Max data size", "bytes", RLIMIT_DATA },
1872 { "Max stack size", "bytes", RLIMIT_STACK },
1873 { "Max core file size", "bytes", RLIMIT_CORE },
1874 { "Max resident set", "bytes", RLIMIT_RSS },
1875 { "Max processes", "processes", RLIMIT_NPROC },
1876 { "Max open files", "files", RLIMIT_NOFILE },
1877 { "Max locked memory", "bytes", RLIMIT_MEMLOCK },
1878 { "Max address space", "bytes", RLIMIT_AS },
1879 { "Max file locks", "locks", LINUX_RLIMIT_LOCKS },
1880 { "Max pending signals", "signals", LINUX_RLIMIT_SIGPENDING },
1881 { "Max msgqueue size", "bytes", LINUX_RLIMIT_MSGQUEUE },
1882 { "Max nice priority", "", LINUX_RLIMIT_NICE },
1883 { "Max realtime priority", "", LINUX_RLIMIT_RTPRIO },
1884 { "Max realtime timeout", "us", LINUX_RLIMIT_RTTIME },
1885 { 0, 0, 0 }
1886 };
1887
1888 static int
linprocfs_doproclimits(PFS_FILL_ARGS)1889 linprocfs_doproclimits(PFS_FILL_ARGS)
1890 {
1891 const struct linux_rlimit_ident *li;
1892 struct plimit *limp;
1893 struct rlimit rl;
1894 ssize_t size;
1895 int res, error;
1896
1897 error = 0;
1898
1899 PROC_LOCK(p);
1900 limp = lim_hold(p->p_limit);
1901 PROC_UNLOCK(p);
1902 size = sizeof(res);
1903 sbuf_printf(sb, "%-26s%-21s%-21s%-21s\n", "Limit", "Soft Limit",
1904 "Hard Limit", "Units");
1905 for (li = linux_rlimits_ident; li->desc != NULL; ++li) {
1906 switch (li->rlim_id)
1907 {
1908 case LINUX_RLIMIT_LOCKS:
1909 /* FALLTHROUGH */
1910 case LINUX_RLIMIT_RTTIME:
1911 rl.rlim_cur = RLIM_INFINITY;
1912 break;
1913 case LINUX_RLIMIT_SIGPENDING:
1914 error = kernel_sysctlbyname(td,
1915 "kern.sigqueue.max_pending_per_proc",
1916 &res, &size, 0, 0, 0, 0);
1917 if (error != 0)
1918 goto out;
1919 rl.rlim_cur = res;
1920 rl.rlim_max = res;
1921 break;
1922 case LINUX_RLIMIT_MSGQUEUE:
1923 error = kernel_sysctlbyname(td,
1924 "kern.ipc.msgmnb", &res, &size, 0, 0, 0, 0);
1925 if (error != 0)
1926 goto out;
1927 rl.rlim_cur = res;
1928 rl.rlim_max = res;
1929 break;
1930 case LINUX_RLIMIT_NICE:
1931 /* FALLTHROUGH */
1932 case LINUX_RLIMIT_RTPRIO:
1933 rl.rlim_cur = 0;
1934 rl.rlim_max = 0;
1935 break;
1936 default:
1937 rl = limp->pl_rlimit[li->rlim_id];
1938 break;
1939 }
1940 if (rl.rlim_cur == RLIM_INFINITY)
1941 sbuf_printf(sb, "%-26s%-21s%-21s%-10s\n",
1942 li->desc, "unlimited", "unlimited", li->unit);
1943 else
1944 sbuf_printf(sb, "%-26s%-21llu%-21llu%-10s\n",
1945 li->desc, (unsigned long long)rl.rlim_cur,
1946 (unsigned long long)rl.rlim_max, li->unit);
1947 }
1948 out:
1949 lim_free(limp);
1950 return (error);
1951 }
1952
1953 /*
1954 * The point of the following two functions is to work around
1955 * an assertion in Chromium; see kern/240991 for details.
1956 */
1957 static int
linprocfs_dotaskattr(PFS_ATTR_ARGS)1958 linprocfs_dotaskattr(PFS_ATTR_ARGS)
1959 {
1960
1961 vap->va_nlink = 3;
1962 return (0);
1963 }
1964
1965 /*
1966 * Filler function for proc/<pid>/task/.dummy
1967 */
1968 static int
linprocfs_dotaskdummy(PFS_FILL_ARGS)1969 linprocfs_dotaskdummy(PFS_FILL_ARGS)
1970 {
1971
1972 return (0);
1973 }
1974
1975 /*
1976 * Filler function for proc/sys/kernel/random/uuid
1977 */
1978 static int
linprocfs_douuid(PFS_FILL_ARGS)1979 linprocfs_douuid(PFS_FILL_ARGS)
1980 {
1981 struct uuid uuid;
1982
1983 kern_uuidgen(&uuid, 1);
1984 sbuf_printf_uuid(sb, &uuid);
1985 sbuf_printf(sb, "\n");
1986 return(0);
1987 }
1988
1989 /*
1990 * Filler function for proc/sys/kernel/random/boot_id
1991 */
1992 static int
linprocfs_doboot_id(PFS_FILL_ARGS)1993 linprocfs_doboot_id(PFS_FILL_ARGS)
1994 {
1995 static bool firstboot = 1;
1996 static struct uuid uuid;
1997
1998 if (firstboot) {
1999 kern_uuidgen(&uuid, 1);
2000 firstboot = 0;
2001 }
2002 sbuf_printf_uuid(sb, &uuid);
2003 sbuf_printf(sb, "\n");
2004 return(0);
2005 }
2006
2007 /*
2008 * Filler function for proc/pid/auxv
2009 */
2010 static int
linprocfs_doauxv(PFS_FILL_ARGS)2011 linprocfs_doauxv(PFS_FILL_ARGS)
2012 {
2013 struct sbuf *asb;
2014 off_t buflen, resid;
2015 int error;
2016
2017 /*
2018 * Mimic linux behavior and pass only processes with usermode
2019 * address space as valid. Return zero silently otherwise.
2020 */
2021 if (p->p_vmspace == &vmspace0)
2022 return (0);
2023
2024 if (uio->uio_resid == 0)
2025 return (0);
2026 if (uio->uio_offset < 0 || uio->uio_resid < 0)
2027 return (EINVAL);
2028
2029 asb = sbuf_new_auto();
2030 if (asb == NULL)
2031 return (ENOMEM);
2032 error = proc_getauxv(td, p, asb);
2033 if (error == 0)
2034 error = sbuf_finish(asb);
2035
2036 resid = sbuf_len(asb) - uio->uio_offset;
2037 if (resid > uio->uio_resid)
2038 buflen = uio->uio_resid;
2039 else
2040 buflen = resid;
2041 if (buflen > IOSIZE_MAX)
2042 return (EINVAL);
2043 if (buflen > maxphys)
2044 buflen = maxphys;
2045 if (resid <= 0)
2046 return (0);
2047
2048 if (error == 0)
2049 error = uiomove(sbuf_data(asb) + uio->uio_offset, buflen, uio);
2050 sbuf_delete(asb);
2051 return (error);
2052 }
2053
2054 /*
2055 * Filler function for proc/self/oom_score_adj
2056 */
2057 static int
linprocfs_do_oom_score_adj(PFS_FILL_ARGS)2058 linprocfs_do_oom_score_adj(PFS_FILL_ARGS)
2059 {
2060 struct linux_pemuldata *pem;
2061 long oom;
2062
2063 pem = pem_find(p);
2064 if (pem == NULL || uio == NULL)
2065 return (EOPNOTSUPP);
2066 if (uio->uio_rw == UIO_READ) {
2067 sbuf_printf(sb, "%d\n", pem->oom_score_adj);
2068 } else {
2069 sbuf_trim(sb);
2070 sbuf_finish(sb);
2071 oom = strtol(sbuf_data(sb), NULL, 10);
2072 if (oom < LINUX_OOM_SCORE_ADJ_MIN ||
2073 oom > LINUX_OOM_SCORE_ADJ_MAX)
2074 return (EINVAL);
2075 pem->oom_score_adj = oom;
2076 }
2077 return (0);
2078 }
2079
2080 /*
2081 * Filler function for proc/sys/vm/max_map_count
2082 *
2083 * Maximum number of active map areas, on Linux this limits the number
2084 * of vmaps per mm struct. We don't limit mappings, return a suitable
2085 * large value.
2086 */
2087 static int
linprocfs_domax_map_cnt(PFS_FILL_ARGS)2088 linprocfs_domax_map_cnt(PFS_FILL_ARGS)
2089 {
2090
2091 sbuf_printf(sb, "%d\n", INT32_MAX);
2092 return (0);
2093 }
2094
2095 /*
2096 * Filler function for proc/sysvipc/msg
2097 */
2098 static int
linprocfs_dosysvipc_msg(PFS_FILL_ARGS)2099 linprocfs_dosysvipc_msg(PFS_FILL_ARGS)
2100 {
2101 struct msqid_kernel *msqids;
2102 size_t id, size;
2103 int error;
2104
2105 sbuf_printf(sb,
2106 "%10s %10s %4s %10s %10s %5s %5s %5s %5s %5s %5s %10s %10s %10s\n",
2107 "key", "msqid", "perms", "cbytes", "qnum", "lspid", "lrpid",
2108 "uid", "gid", "cuid", "cgid", "stime", "rtime", "ctime");
2109
2110 error = kern_get_msqids(curthread, &msqids, &size);
2111 if (error != 0)
2112 return (error);
2113
2114 for (id = 0; id < size; id++) {
2115 if (msqids[id].u.msg_qbytes == 0)
2116 continue;
2117 sbuf_printf(sb,
2118 "%10d %10zu %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %jd %jd %jd\n",
2119 (int)msqids[id].u.msg_perm.key,
2120 IXSEQ_TO_IPCID(id, msqids[id].u.msg_perm),
2121 msqids[id].u.msg_perm.mode,
2122 msqids[id].u.msg_cbytes,
2123 msqids[id].u.msg_qnum,
2124 msqids[id].u.msg_lspid,
2125 msqids[id].u.msg_lrpid,
2126 msqids[id].u.msg_perm.uid,
2127 msqids[id].u.msg_perm.gid,
2128 msqids[id].u.msg_perm.cuid,
2129 msqids[id].u.msg_perm.cgid,
2130 (intmax_t)msqids[id].u.msg_stime,
2131 (intmax_t)msqids[id].u.msg_rtime,
2132 (intmax_t)msqids[id].u.msg_ctime);
2133 }
2134
2135 free(msqids, M_TEMP);
2136 return (0);
2137 }
2138
2139 /*
2140 * Filler function for proc/sysvipc/sem
2141 */
2142 static int
linprocfs_dosysvipc_sem(PFS_FILL_ARGS)2143 linprocfs_dosysvipc_sem(PFS_FILL_ARGS)
2144 {
2145 struct semid_kernel *semids;
2146 size_t id, size;
2147 int error;
2148
2149 sbuf_printf(sb, "%10s %10s %4s %10s %5s %5s %5s %5s %10s %10s\n",
2150 "key", "semid", "perms", "nsems", "uid", "gid", "cuid", "cgid",
2151 "otime", "ctime");
2152
2153 error = kern_get_sema(curthread, &semids, &size);
2154 if (error != 0)
2155 return (error);
2156
2157 for (id = 0; id < size; id++) {
2158 if ((semids[id].u.sem_perm.mode & SEM_ALLOC) == 0)
2159 continue;
2160 sbuf_printf(sb,
2161 "%10d %10zu %4o %10u %5u %5u %5u %5u %jd %jd\n",
2162 (int)semids[id].u.sem_perm.key,
2163 IXSEQ_TO_IPCID(id, semids[id].u.sem_perm),
2164 semids[id].u.sem_perm.mode,
2165 semids[id].u.sem_nsems,
2166 semids[id].u.sem_perm.uid,
2167 semids[id].u.sem_perm.gid,
2168 semids[id].u.sem_perm.cuid,
2169 semids[id].u.sem_perm.cgid,
2170 (intmax_t)semids[id].u.sem_otime,
2171 (intmax_t)semids[id].u.sem_ctime);
2172 }
2173
2174 free(semids, M_TEMP);
2175 return (0);
2176 }
2177
2178 /*
2179 * Filler function for proc/sysvipc/shm
2180 */
2181 static int
linprocfs_dosysvipc_shm(PFS_FILL_ARGS)2182 linprocfs_dosysvipc_shm(PFS_FILL_ARGS)
2183 {
2184 struct shmid_kernel *shmids;
2185 size_t id, size;
2186 int error;
2187
2188 sbuf_printf(sb,
2189 "%10s %10s %s %21s %5s %5s %5s %5s %5s %5s %5s %10s %10s %10s %21s %21s\n",
2190 "key", "shmid", "perms", "size", "cpid", "lpid", "nattch", "uid",
2191 "gid", "cuid", "cgid", "atime", "dtime", "ctime", "rss", "swap");
2192
2193 error = kern_get_shmsegs(curthread, &shmids, &size);
2194 if (error != 0)
2195 return (error);
2196
2197 for (id = 0; id < size; id++) {
2198 if ((shmids[id].u.shm_perm.mode & SHMSEG_ALLOCATED) == 0)
2199 continue;
2200 sbuf_printf(sb,
2201 "%10d %10zu %4o %21zu %5u %5u %5u %5u %5u %5u %5u %jd %jd %jd %21d %21d\n",
2202 (int)shmids[id].u.shm_perm.key,
2203 IXSEQ_TO_IPCID(id, shmids[id].u.shm_perm),
2204 shmids[id].u.shm_perm.mode,
2205 shmids[id].u.shm_segsz,
2206 shmids[id].u.shm_cpid,
2207 shmids[id].u.shm_lpid,
2208 shmids[id].u.shm_nattch,
2209 shmids[id].u.shm_perm.uid,
2210 shmids[id].u.shm_perm.gid,
2211 shmids[id].u.shm_perm.cuid,
2212 shmids[id].u.shm_perm.cgid,
2213 (intmax_t)shmids[id].u.shm_atime,
2214 (intmax_t)shmids[id].u.shm_dtime,
2215 (intmax_t)shmids[id].u.shm_ctime,
2216 0, 0); /* XXX rss & swp are not supported */
2217 }
2218
2219 free(shmids, M_TEMP);
2220 return (0);
2221 }
2222
2223 /*
2224 * Filler function for proc/sys/fs/mqueue/msg_default
2225 */
2226 static int
linprocfs_domqueue_msg_default(PFS_FILL_ARGS)2227 linprocfs_domqueue_msg_default(PFS_FILL_ARGS)
2228 {
2229 int res, error;
2230 size_t size = sizeof(res);
2231
2232 error = kernel_sysctlbyname(curthread, "kern.mqueue.default_maxmsg",
2233 &res, &size, NULL, 0, 0, 0);
2234 if (error != 0)
2235 return (error);
2236
2237 sbuf_printf(sb, "%d\n", res);
2238 return (0);
2239 }
2240
2241 /*
2242 * Filler function for proc/sys/fs/mqueue/msgsize_default
2243 */
2244 static int
linprocfs_domqueue_msgsize_default(PFS_FILL_ARGS)2245 linprocfs_domqueue_msgsize_default(PFS_FILL_ARGS)
2246 {
2247 int res, error;
2248 size_t size = sizeof(res);
2249
2250 error = kernel_sysctlbyname(curthread, "kern.mqueue.default_msgsize",
2251 &res, &size, NULL, 0, 0, 0);
2252 if (error != 0)
2253 return (error);
2254
2255 sbuf_printf(sb, "%d\n", res);
2256 return (0);
2257
2258 }
2259
2260 /*
2261 * Filler function for proc/sys/fs/mqueue/msg_max
2262 */
2263 static int
linprocfs_domqueue_msg_max(PFS_FILL_ARGS)2264 linprocfs_domqueue_msg_max(PFS_FILL_ARGS)
2265 {
2266 int res, error;
2267 size_t size = sizeof(res);
2268
2269 error = kernel_sysctlbyname(curthread, "kern.mqueue.maxmsg",
2270 &res, &size, NULL, 0, 0, 0);
2271 if (error != 0)
2272 return (error);
2273
2274 sbuf_printf(sb, "%d\n", res);
2275 return (0);
2276 }
2277
2278 /*
2279 * Filler function for proc/sys/fs/mqueue/msgsize_max
2280 */
2281 static int
linprocfs_domqueue_msgsize_max(PFS_FILL_ARGS)2282 linprocfs_domqueue_msgsize_max(PFS_FILL_ARGS)
2283 {
2284 int res, error;
2285 size_t size = sizeof(res);
2286
2287 error = kernel_sysctlbyname(curthread, "kern.mqueue.maxmsgsize",
2288 &res, &size, NULL, 0, 0, 0);
2289 if (error != 0)
2290 return (error);
2291
2292 sbuf_printf(sb, "%d\n", res);
2293 return (0);
2294 }
2295
2296 /*
2297 * Filler function for proc/sys/fs/mqueue/queues_max
2298 */
2299 static int
linprocfs_domqueue_queues_max(PFS_FILL_ARGS)2300 linprocfs_domqueue_queues_max(PFS_FILL_ARGS)
2301 {
2302 int res, error;
2303 size_t size = sizeof(res);
2304
2305 error = kernel_sysctlbyname(curthread, "kern.mqueue.maxmq",
2306 &res, &size, NULL, 0, 0, 0);
2307 if (error != 0)
2308 return (error);
2309
2310 sbuf_printf(sb, "%d\n", res);
2311 return (0);
2312 }
2313
2314 /*
2315 * Constructor
2316 */
2317 static int
linprocfs_init(PFS_INIT_ARGS)2318 linprocfs_init(PFS_INIT_ARGS)
2319 {
2320 struct pfs_node *root;
2321 struct pfs_node *dir;
2322 struct pfs_node *sys;
2323
2324 root = pi->pi_root;
2325
2326 /* /proc/... */
2327 pfs_create_file(root, "cmdline", &linprocfs_docmdline,
2328 NULL, NULL, NULL, PFS_RD);
2329 pfs_create_file(root, "cpuinfo", &linprocfs_docpuinfo,
2330 NULL, NULL, NULL, PFS_RD);
2331 pfs_create_file(root, "devices", &linprocfs_dodevices,
2332 NULL, NULL, NULL, PFS_RD);
2333 pfs_create_file(root, "filesystems", &linprocfs_dofilesystems,
2334 NULL, NULL, NULL, PFS_RD);
2335 pfs_create_file(root, "loadavg", &linprocfs_doloadavg,
2336 NULL, NULL, NULL, PFS_RD);
2337 pfs_create_file(root, "meminfo", &linprocfs_domeminfo,
2338 NULL, NULL, NULL, PFS_RD);
2339 pfs_create_file(root, "modules", &linprocfs_domodules,
2340 NULL, NULL, NULL, PFS_RD);
2341 pfs_create_file(root, "mounts", &linprocfs_domtab,
2342 NULL, NULL, NULL, PFS_RD);
2343 pfs_create_file(root, "mtab", &linprocfs_domtab,
2344 NULL, NULL, NULL, PFS_RD);
2345 pfs_create_file(root, "partitions", &linprocfs_dopartitions,
2346 NULL, NULL, NULL, PFS_RD);
2347 pfs_create_link(root, "self", &procfs_docurproc,
2348 NULL, NULL, NULL, 0);
2349 pfs_create_file(root, "stat", &linprocfs_dostat,
2350 NULL, NULL, NULL, PFS_RD);
2351 pfs_create_file(root, "swaps", &linprocfs_doswaps,
2352 NULL, NULL, NULL, PFS_RD);
2353 pfs_create_file(root, "uptime", &linprocfs_douptime,
2354 NULL, NULL, NULL, PFS_RD);
2355 pfs_create_file(root, "version", &linprocfs_doversion,
2356 NULL, NULL, NULL, PFS_RD);
2357
2358 /* /proc/bus/... */
2359 dir = pfs_create_dir(root, "bus", NULL, NULL, NULL, 0);
2360 dir = pfs_create_dir(dir, "pci", NULL, NULL, NULL, 0);
2361 dir = pfs_create_dir(dir, "devices", NULL, NULL, NULL, 0);
2362
2363 /* /proc/net/... */
2364 dir = pfs_create_dir(root, "net", NULL, NULL, NULL, 0);
2365 pfs_create_file(dir, "dev", &linprocfs_donetdev,
2366 NULL, NULL, NULL, PFS_RD);
2367 pfs_create_file(dir, "route", &linprocfs_donetroute,
2368 NULL, NULL, NULL, PFS_RD);
2369
2370 /* /proc/<pid>/... */
2371 dir = pfs_create_dir(root, "pid", NULL, NULL, NULL, PFS_PROCDEP);
2372 pfs_create_file(dir, "cmdline", &linprocfs_doproccmdline,
2373 NULL, NULL, NULL, PFS_RD);
2374 pfs_create_link(dir, "cwd", &linprocfs_doproccwd,
2375 NULL, NULL, NULL, 0);
2376 pfs_create_file(dir, "environ", &linprocfs_doprocenviron,
2377 NULL, &procfs_candebug, NULL, PFS_RD);
2378 pfs_create_link(dir, "exe", &procfs_doprocfile,
2379 NULL, &procfs_notsystem, NULL, 0);
2380 pfs_create_file(dir, "maps", &linprocfs_doprocmaps,
2381 NULL, NULL, NULL, PFS_RD | PFS_AUTODRAIN);
2382 pfs_create_file(dir, "mem", &linprocfs_doprocmem,
2383 procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
2384 pfs_create_file(dir, "mountinfo", &linprocfs_doprocmountinfo,
2385 NULL, NULL, NULL, PFS_RD);
2386 pfs_create_file(dir, "mounts", &linprocfs_domtab,
2387 NULL, NULL, NULL, PFS_RD);
2388 pfs_create_link(dir, "root", &linprocfs_doprocroot,
2389 NULL, NULL, NULL, 0);
2390 pfs_create_file(dir, "stat", &linprocfs_doprocstat,
2391 NULL, NULL, NULL, PFS_RD);
2392 pfs_create_file(dir, "statm", &linprocfs_doprocstatm,
2393 NULL, NULL, NULL, PFS_RD);
2394 pfs_create_file(dir, "status", &linprocfs_doprocstatus,
2395 NULL, NULL, NULL, PFS_RD);
2396 pfs_create_link(dir, "fd", &linprocfs_dofdescfs,
2397 NULL, NULL, NULL, 0);
2398 pfs_create_file(dir, "auxv", &linprocfs_doauxv,
2399 NULL, &procfs_candebug, NULL, PFS_RD|PFS_RAWRD);
2400 pfs_create_file(dir, "limits", &linprocfs_doproclimits,
2401 NULL, NULL, NULL, PFS_RD);
2402 pfs_create_file(dir, "oom_score_adj", &linprocfs_do_oom_score_adj,
2403 procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR);
2404
2405 /* /proc/<pid>/task/... */
2406 dir = pfs_create_dir(dir, "task", linprocfs_dotaskattr, NULL, NULL, 0);
2407 pfs_create_file(dir, ".dummy", &linprocfs_dotaskdummy,
2408 NULL, NULL, NULL, PFS_RD);
2409
2410 /* /proc/scsi/... */
2411 dir = pfs_create_dir(root, "scsi", NULL, NULL, NULL, 0);
2412 pfs_create_file(dir, "device_info", &linprocfs_doscsidevinfo,
2413 NULL, NULL, NULL, PFS_RD);
2414 pfs_create_file(dir, "scsi", &linprocfs_doscsiscsi,
2415 NULL, NULL, NULL, PFS_RD);
2416
2417 /* /proc/sys/... */
2418 sys = pfs_create_dir(root, "sys", NULL, NULL, NULL, 0);
2419
2420 /* /proc/sys/kernel/... */
2421 dir = pfs_create_dir(sys, "kernel", NULL, NULL, NULL, 0);
2422 pfs_create_file(dir, "osrelease", &linprocfs_doosrelease,
2423 NULL, NULL, NULL, PFS_RD);
2424 pfs_create_file(dir, "ostype", &linprocfs_doostype,
2425 NULL, NULL, NULL, PFS_RD);
2426 pfs_create_file(dir, "version", &linprocfs_doosbuild,
2427 NULL, NULL, NULL, PFS_RD);
2428 pfs_create_file(dir, "msgmax", &linprocfs_domsgmax,
2429 NULL, NULL, NULL, PFS_RD);
2430 pfs_create_file(dir, "msgmni", &linprocfs_domsgmni,
2431 NULL, NULL, NULL, PFS_RD);
2432 pfs_create_file(dir, "msgmnb", &linprocfs_domsgmnb,
2433 NULL, NULL, NULL, PFS_RD);
2434 pfs_create_file(dir, "ngroups_max", &linprocfs_dongroups_max,
2435 NULL, NULL, NULL, PFS_RD);
2436 pfs_create_file(dir, "pid_max", &linprocfs_dopid_max,
2437 NULL, NULL, NULL, PFS_RD);
2438 pfs_create_file(dir, "sem", &linprocfs_dosem,
2439 NULL, NULL, NULL, PFS_RD);
2440 pfs_create_file(dir, "shmall", &linprocfs_doshmall,
2441 NULL, NULL, NULL, PFS_RD);
2442 pfs_create_file(dir, "shmmax", &linprocfs_doshmmax,
2443 NULL, NULL, NULL, PFS_RD);
2444 pfs_create_file(dir, "shmmni", &linprocfs_doshmmni,
2445 NULL, NULL, NULL, PFS_RD);
2446 pfs_create_file(dir, "tainted", &linprocfs_dotainted,
2447 NULL, NULL, NULL, PFS_RD);
2448
2449 /* /proc/sys/kernel/random/... */
2450 dir = pfs_create_dir(dir, "random", NULL, NULL, NULL, 0);
2451 pfs_create_file(dir, "uuid", &linprocfs_douuid,
2452 NULL, NULL, NULL, PFS_RD);
2453 pfs_create_file(dir, "boot_id", &linprocfs_doboot_id,
2454 NULL, NULL, NULL, PFS_RD);
2455
2456 /* /proc/sys/vm/.... */
2457 dir = pfs_create_dir(sys, "vm", NULL, NULL, NULL, 0);
2458 pfs_create_file(dir, "min_free_kbytes", &linprocfs_dominfree,
2459 NULL, NULL, NULL, PFS_RD);
2460 pfs_create_file(dir, "max_map_count", &linprocfs_domax_map_cnt,
2461 NULL, NULL, NULL, PFS_RD);
2462
2463 /* /proc/sysvipc/... */
2464 dir = pfs_create_dir(root, "sysvipc", NULL, NULL, NULL, 0);
2465 pfs_create_file(dir, "msg", &linprocfs_dosysvipc_msg,
2466 NULL, NULL, NULL, PFS_RD);
2467 pfs_create_file(dir, "sem", &linprocfs_dosysvipc_sem,
2468 NULL, NULL, NULL, PFS_RD);
2469 pfs_create_file(dir, "shm", &linprocfs_dosysvipc_shm,
2470 NULL, NULL, NULL, PFS_RD);
2471
2472 /* /proc/sys/fs/... */
2473 dir = pfs_create_dir(sys, "fs", NULL, NULL, NULL, 0);
2474
2475 /* /proc/sys/fs/mqueue/... */
2476 dir = pfs_create_dir(dir, "mqueue", NULL, NULL, NULL, 0);
2477 pfs_create_file(dir, "msg_default", &linprocfs_domqueue_msg_default,
2478 NULL, NULL, NULL, PFS_RD);
2479 pfs_create_file(dir, "msgsize_default", &linprocfs_domqueue_msgsize_default,
2480 NULL, NULL, NULL, PFS_RD);
2481 pfs_create_file(dir, "msg_max", &linprocfs_domqueue_msg_max,
2482 NULL, NULL, NULL, PFS_RD);
2483 pfs_create_file(dir, "msgsize_max", &linprocfs_domqueue_msgsize_max,
2484 NULL, NULL, NULL, PFS_RD);
2485 pfs_create_file(dir, "queues_max", &linprocfs_domqueue_queues_max,
2486 NULL, NULL, NULL, PFS_RD);
2487
2488 return (0);
2489 }
2490
2491 /*
2492 * Destructor
2493 */
2494 static int
linprocfs_uninit(PFS_INIT_ARGS)2495 linprocfs_uninit(PFS_INIT_ARGS)
2496 {
2497
2498 /* nothing to do, pseudofs will GC */
2499 return (0);
2500 }
2501
2502 PSEUDOFS(linprocfs, 1, VFCF_JAIL);
2503 #if defined(__aarch64__) || defined(__amd64__)
2504 MODULE_DEPEND(linprocfs, linux_common, 1, 1, 1);
2505 #else
2506 MODULE_DEPEND(linprocfs, linux, 1, 1, 1);
2507 #endif
2508 MODULE_DEPEND(linprocfs, procfs, 1, 1, 1);
2509 MODULE_DEPEND(linprocfs, sysvmsg, 1, 1, 1);
2510 MODULE_DEPEND(linprocfs, sysvsem, 1, 1, 1);
2511 MODULE_DEPEND(linprocfs, sysvshm, 1, 1, 1);
2512