sys/compat/linprocfs/linprocfs.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-4-Clause
   3  *
   4  * Copyright (c) 2000 Dag-Erling Coïdan 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  *      @(#)procfs_status.c     8.4 (Berkeley) 6/15/94
  42  */
  43
  44 #include <sys/cdefs.h>
  45 __FBSDID("$FreeBSD$");
  46
  47 #include <sys/param.h>
  48 #include <sys/queue.h>
  49 #include <sys/blist.h>
  50 #include <sys/conf.h>
  51 #include <sys/exec.h>
  52 #include <sys/fcntl.h>
  53 #include <sys/filedesc.h>
  54 #include <sys/jail.h>
  55 #include <sys/kernel.h>
  56 #include <sys/limits.h>
  57 #include <sys/linker.h>
  58 #include <sys/lock.h>
  59 #include <sys/malloc.h>
  60 #include <sys/msg.h>
  61 #include <sys/mutex.h>
  62 #include <sys/namei.h>
  63 #include <sys/proc.h>
  64 #include <sys/ptrace.h>
  65 #include <sys/resourcevar.h>
  66 #include <sys/resource.h>
  67 #include <sys/sbuf.h>
  68 #include <sys/sem.h>
  69 #include <sys/smp.h>
  70 #include <sys/socket.h>
  71 #include <sys/syscallsubr.h>
  72 #include <sys/sysctl.h>
  73 #include <sys/sysent.h>
  74 #include <sys/systm.h>
  75 #include <sys/time.h>
  76 #include <sys/tty.h>
  77 #include <sys/user.h>
  78 #include <sys/uuid.h>
  79 #include <sys/vmmeter.h>
  80 #include <sys/vnode.h>
  81 #include <sys/bus.h>
  82
  83 #include <net/if.h>
  84 #include <net/if_var.h>
  85 #include <net/if_types.h>
  86
  87 #include <vm/vm.h>
  88 #include <vm/vm_extern.h>
  89 #include <vm/pmap.h>
  90 #include <vm/vm_map.h>
  91 #include <vm/vm_param.h>
  92 #include <vm/vm_object.h>
  93 #include <vm/swap_pager.h>
  94
  95 #include <machine/clock.h>
  96
  97 #include <geom/geom.h>
  98 #include <geom/geom_int.h>
  99
 100 #if defined(__i386__) || defined(__amd64__)
 101 #include <machine/cputypes.h>
 102 #include <machine/md_var.h>
 103 #endif /* __i386__ || __amd64__ */
 104
 105 #include <compat/linux/linux.h>
 106 #include <compat/linux/linux_mib.h>
 107 #include <compat/linux/linux_misc.h>
 108 #include <compat/linux/linux_util.h>
 109 #include <fs/pseudofs/pseudofs.h>
 110 #include <fs/procfs/procfs.h>
 111
 112 /*
 113  * Various conversion macros
 114  */
 115 #define T2J(x) ((long)(((x) * 100ULL) / (stathz ? stathz : hz)))        /* ticks to jiffies */
 116 #define T2CS(x) ((unsigned long)(((x) * 100ULL) / (stathz ? stathz : hz)))      /* ticks to centiseconds */
 117 #define T2S(x) ((x) / (stathz ? stathz : hz))           /* ticks to seconds */
 118 #define B2K(x) ((x) >> 10)                              /* bytes to kbytes */
 119 #define B2P(x) ((x) >> PAGE_SHIFT)                      /* bytes to pages */
 120 #define P2B(x) ((x) << PAGE_SHIFT)                      /* pages to bytes */
 121 #define P2K(x) ((x) << (PAGE_SHIFT - 10))               /* pages to kbytes */
 122 #define TV2J(x) ((x)->tv_sec * 100UL + (x)->tv_usec / 10000)
 123
 124 /**
 125  * @brief Mapping of ki_stat in struct kinfo_proc to the linux state
 126  *
 127  * The linux procfs state field displays one of the characters RSDZTW to
 128  * denote running, sleeping in an interruptible wait, waiting in an
 129  * uninterruptible disk sleep, a zombie process, process is being traced
 130  * or stopped, or process is paging respectively.
 131  *
 132  * Our struct kinfo_proc contains the variable ki_stat which contains a
 133  * value out of SIDL, SRUN, SSLEEP, SSTOP, SZOMB, SWAIT and SLOCK.
 134  *
 135  * This character array is used with ki_stati-1 as an index and tries to
 136  * map our states to suitable linux states.
 137  */
 138 static char linux_state[] = "RRSTZDD";
 139
 140 /*
 141  * Filler function for proc/meminfo
 142  */
 143 static int
 144 linprocfs_domeminfo(PFS_FILL_ARGS)
 145 {
 146         unsigned long memtotal;         /* total memory in bytes */
 147         unsigned long memused;          /* used memory in bytes */
 148         unsigned long memfree;          /* free memory in bytes */
 149         unsigned long buffers, cached;  /* buffer / cache memory ??? */
 150         unsigned long long swaptotal;   /* total swap space in bytes */
 151         unsigned long long swapused;    /* used swap space in bytes */
 152         unsigned long long swapfree;    /* free swap space in bytes */
 153         int i, j;
 154
 155         memtotal = physmem * PAGE_SIZE;
 156         /*
 157          * The correct thing here would be:
 158          *
 159         memfree = vm_free_count() * PAGE_SIZE;
 160         memused = memtotal - memfree;
 161          *
 162          * but it might mislead linux binaries into thinking there
 163          * is very little memory left, so we cheat and tell them that
 164          * all memory that isn't wired down is free.
 165          */
 166         memused = vm_wire_count() * PAGE_SIZE;
 167         memfree = memtotal - memused;
 168         swap_pager_status(&i, &j);
 169         swaptotal = (unsigned long long)i * PAGE_SIZE;
 170         swapused = (unsigned long long)j * PAGE_SIZE;
 171         swapfree = swaptotal - swapused;
 172         /*
 173          * We'd love to be able to write:
 174          *
 175         buffers = bufspace;
 176          *
 177          * but bufspace is internal to vfs_bio.c and we don't feel
 178          * like unstaticizing it just for linprocfs's sake.
 179          */
 180         buffers = 0;
 181         cached = vm_inactive_count() * PAGE_SIZE;
 182
 183         sbuf_printf(sb,
 184             "MemTotal: %9lu kB\n"
 185             "MemFree:  %9lu kB\n"
 186             "Buffers:  %9lu kB\n"
 187             "Cached:   %9lu kB\n"
 188             "SwapTotal:%9llu kB\n"
 189             "SwapFree: %9llu kB\n",
 190             B2K(memtotal), B2K(memfree), B2K(buffers),
 191             B2K(cached), B2K(swaptotal), B2K(swapfree));
 192
 193         return (0);
 194 }
 195
 196 #if defined(__i386__) || defined(__amd64__)
 197 /*
 198  * Filler function for proc/cpuinfo (i386 & amd64 version)
 199  */
 200 static int
 201 linprocfs_docpuinfo(PFS_FILL_ARGS)
 202 {
 203         int hw_model[2];
 204         char model[128];
 205         uint64_t freq;
 206         size_t size;
 207         u_int cache_size[4];
 208         int fqmhz, fqkhz;
 209         int i, j;
 210
 211         /*
 212          * We default the flags to include all non-conflicting flags,
 213          * and the Intel versions of conflicting flags.
 214          */
 215         static char *cpu_feature_names[] = {
 216                 /*  0 */ "fpu", "vme", "de", "pse",
 217                 /*  4 */ "tsc", "msr", "pae", "mce",
 218                 /*  8 */ "cx8", "apic", "", "sep",
 219                 /* 12 */ "mtrr", "pge", "mca", "cmov",
 220                 /* 16 */ "pat", "pse36", "pn", "clflush",
 221                 /* 20 */ "", "dts", "acpi", "mmx",
 222                 /* 24 */ "fxsr", "sse", "sse2", "ss",
 223                 /* 28 */ "ht", "tm", "ia64", "pbe"
 224         };
 225
 226         static char *amd_feature_names[] = {
 227                 /*  0 */ "", "", "", "",
 228                 /*  4 */ "", "", "", "",
 229                 /*  8 */ "", "", "", "syscall",
 230                 /* 12 */ "", "", "", "",
 231                 /* 16 */ "", "", "", "mp",
 232                 /* 20 */ "nx", "", "mmxext", "",
 233                 /* 24 */ "", "fxsr_opt", "pdpe1gb", "rdtscp",
 234                 /* 28 */ "", "lm", "3dnowext", "3dnow"
 235         };
 236
 237         static char *cpu_feature2_names[] = {
 238                 /*  0 */ "pni", "pclmulqdq", "dtes3", "monitor",
 239                 /*  4 */ "ds_cpl", "vmx", "smx", "est",
 240                 /*  8 */ "tm2", "ssse3", "cid", "sdbg",
 241                 /* 12 */ "fma", "cx16", "xptr", "pdcm",
 242                 /* 16 */ "", "pcid", "dca", "sse4_1",
 243                 /* 20 */ "sse4_2", "x2apic", "movbe", "popcnt",
 244                 /* 24 */ "tsc_deadline_timer", "aes", "xsave", "",
 245                 /* 28 */ "avx", "f16c", "rdrand", "hypervisor"
 246         };
 247
 248         static char *amd_feature2_names[] = {
 249                 /*  0 */ "lahf_lm", "cmp_legacy", "svm", "extapic",
 250                 /*  4 */ "cr8_legacy", "abm", "sse4a", "misalignsse",
 251                 /*  8 */ "3dnowprefetch", "osvw", "ibs", "xop",
 252                 /* 12 */ "skinit", "wdt", "", "lwp",
 253                 /* 16 */ "fma4", "tce", "", "nodeid_msr",
 254                 /* 20 */ "", "tbm", "topoext", "perfctr_core",
 255                 /* 24 */ "perfctr_nb", "", "bpext", "ptsc",
 256                 /* 28 */ "perfctr_llc", "mwaitx", "", ""
 257         };
 258
 259         static char *cpu_stdext_feature_names[] = {
 260                 /*  0 */ "fsgsbase", "tsc_adjust", "", "bmi1",
 261                 /*  4 */ "hle", "avx2", "", "smep",
 262                 /*  8 */ "bmi2", "erms", "invpcid", "rtm",
 263                 /* 12 */ "cqm", "", "mpx", "rdt_a",
 264                 /* 16 */ "avx512f", "avx512dq", "rdseed", "adx",
 265                 /* 20 */ "smap", "avx512ifma", "", "clflushopt",
 266                 /* 24 */ "clwb", "intel_pt", "avx512pf", "avx512er",
 267                 /* 28 */ "avx512cd", "sha_ni", "avx512bw", "avx512vl"
 268         };
 269
 270         static char *power_flags[] = {
 271                 "ts",           "fid",          "vid",
 272                 "ttp",          "tm",           "stc",
 273                 "100mhzsteps",  "hwpstate",     "",
 274                 "cpb",          "eff_freq_ro",  "proc_feedback",
 275                 "acc_power",
 276         };
 277
 278         hw_model[0] = CTL_HW;
 279         hw_model[1] = HW_MODEL;
 280         model[0] = '\0';
 281         size = sizeof(model);
 282         if (kernel_sysctl(td, hw_model, 2, &model, &size, 0, 0, 0, 0) != 0)
 283                 strcpy(model, "unknown");
 284 #ifdef __i386__
 285         switch (cpu_vendor_id) {
 286         case CPU_VENDOR_AMD:
 287                 if (cpu_class < CPUCLASS_686)
 288                         cpu_feature_names[16] = "fcmov";
 289                 break;
 290         case CPU_VENDOR_CYRIX:
 291                 cpu_feature_names[24] = "cxmmx";
 292                 break;
 293         }
 294 #endif
 295         if (cpu_exthigh >= 0x80000006)
 296                 do_cpuid(0x80000006, cache_size);
 297         else
 298                 memset(cache_size, 0, sizeof(cache_size));
 299         for (i = 0; i < mp_ncpus; ++i) {
 300                 fqmhz = 0;
 301                 fqkhz = 0;
 302                 freq = atomic_load_acq_64(&tsc_freq);
 303                 if (freq != 0) {
 304                         fqmhz = (freq + 4999) / 1000000;
 305                         fqkhz = ((freq + 4999) / 10000) % 100;
 306                 }
 307                 sbuf_printf(sb,
 308                     "processor\t: %d\n"
 309                     "vendor_id\t: %.20s\n"
 310                     "cpu family\t: %u\n"
 311                     "model\t\t: %u\n"
 312                     "model name\t: %s\n"
 313                     "stepping\t: %u\n"
 314                     "cpu MHz\t\t: %d.%02d\n"
 315                     "cache size\t: %d KB\n"
 316                     "physical id\t: %d\n"
 317                     "siblings\t: %d\n"
 318                     "core id\t\t: %d\n"
 319                     "cpu cores\t: %d\n"
 320                     "apicid\t\t: %d\n"
 321                     "initial apicid\t: %d\n"
 322                     "fpu\t\t: %s\n"
 323                     "fpu_exception\t: %s\n"
 324                     "cpuid level\t: %d\n"
 325                     "wp\t\t: %s\n",
 326                     i, cpu_vendor, CPUID_TO_FAMILY(cpu_id),
 327                     CPUID_TO_MODEL(cpu_id), model, cpu_id & CPUID_STEPPING,
 328                     fqmhz, fqkhz,
 329                     (cache_size[2] >> 16), 0, mp_ncpus, i, mp_ncpus,
 330                     i, i, /*cpu_id & CPUID_LOCAL_APIC_ID ??*/
 331                     (cpu_feature & CPUID_FPU) ? "yes" : "no", "yes",
 332                     CPUID_TO_FAMILY(cpu_id), "yes");
 333                 sbuf_cat(sb, "flags\t\t:");
 334                 for (j = 0; j < nitems(cpu_feature_names); j++)
 335                         if (cpu_feature & (1 << j) &&
 336                             cpu_feature_names[j][0] != '\0')
 337                                 sbuf_printf(sb, " %s", cpu_feature_names[j]);
 338                 for (j = 0; j < nitems(amd_feature_names); j++)
 339                         if (amd_feature & (1 << j) &&
 340                             amd_feature_names[j][0] != '\0')
 341                                 sbuf_printf(sb, " %s", amd_feature_names[j]);
 342                 for (j = 0; j < nitems(cpu_feature2_names); j++)
 343                         if (cpu_feature2 & (1 << j) &&
 344                             cpu_feature2_names[j][0] != '\0')
 345                                 sbuf_printf(sb, " %s", cpu_feature2_names[j]);
 346                 for (j = 0; j < nitems(amd_feature2_names); j++)
 347                         if (amd_feature2 & (1 << j) &&
 348                             amd_feature2_names[j][0] != '\0')
 349                                 sbuf_printf(sb, " %s", amd_feature2_names[j]);
 350                 for (j = 0; j < nitems(cpu_stdext_feature_names); j++)
 351                         if (cpu_stdext_feature & (1 << j) &&
 352                             cpu_stdext_feature_names[j][0] != '\0')
 353                                 sbuf_printf(sb, " %s",
 354                                     cpu_stdext_feature_names[j]);
 355                 sbuf_cat(sb, "\n");
 356                 sbuf_printf(sb,
 357                     "bugs\t\t: %s\n"
 358                     "bogomips\t: %d.%02d\n"
 359                     "clflush size\t: %d\n"
 360                     "cache_alignment\t: %d\n"
 361                     "address sizes\t: %d bits physical, %d bits virtual\n",
 362 #if defined(I586_CPU) && !defined(NO_F00F_HACK)
 363                     (has_f00f_bug) ? "Intel F00F" : "",
 364 #else
 365                     "",
 366 #endif
 367                     fqmhz, fqkhz,
 368                     cpu_clflush_line_size, cpu_clflush_line_size,
 369                     cpu_maxphyaddr,
 370                     (cpu_maxphyaddr > 32) ? 48 : 0);
 371                 sbuf_cat(sb, "power management: ");
 372                 for (j = 0; j < nitems(power_flags); j++)
 373                         if (amd_pminfo & (1 << j))
 374                                 sbuf_printf(sb, " %s", power_flags[j]);
 375                 sbuf_cat(sb, "\n\n");
 376
 377                 /* XXX per-cpu vendor / class / model / id? */
 378         }
 379         sbuf_cat(sb, "\n");
 380
 381         return (0);
 382 }
 383 #else
 384 /* ARM64TODO: implement non-stubbed linprocfs_docpuinfo */
 385 static int
 386 linprocfs_docpuinfo(PFS_FILL_ARGS)
 387 {
 388         int i;
 389
 390         for (i = 0; i < mp_ncpus; ++i) {
 391                 sbuf_printf(sb,
 392                     "processor\t: %d\n"
 393                     "BogoMIPS\t: %d.%02d\n",
 394                     i, 0, 0);
 395                 sbuf_cat(sb, "Features\t: ");
 396                 sbuf_cat(sb, "\n");
 397                 sbuf_printf(sb,
 398                     "CPU implementer\t: \n"
 399                     "CPU architecture: \n"
 400                     "CPU variant\t: 0x%x\n"
 401                     "CPU part\t: 0x%x\n"
 402                     "CPU revision\t: %d\n",
 403                     0, 0, 0);
 404                 sbuf_cat(sb, "\n");
 405         }
 406
 407         return (0);
 408 }
 409 #endif /* __i386__ || __amd64__ */
 410
 411 /*
 412  * Filler function for proc/mtab
 413  *
 414  * This file doesn't exist in Linux' procfs, but is included here so
 415  * users can symlink /compat/linux/etc/mtab to /proc/mtab
 416  */
 417 static int
 418 linprocfs_domtab(PFS_FILL_ARGS)
 419 {
 420         struct nameidata nd;
 421         const char *lep;
 422         char *dlep, *flep, *mntto, *mntfrom, *fstype;
 423         size_t lep_len;
 424         int error;
 425         struct statfs *buf, *sp;
 426         size_t count;
 427
 428         /* resolve symlinks etc. in the emulation tree prefix */
 429         NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, linux_emul_path, td);
 430         flep = NULL;
 431         error = namei(&nd);
 432         lep = linux_emul_path;
 433         if (error == 0) {
 434                 if (vn_fullpath(td, nd.ni_vp, &dlep, &flep) == 0)
 435                         lep = dlep;
 436                 vrele(nd.ni_vp);
 437         }
 438         lep_len = strlen(lep);
 439
 440         buf = NULL;
 441         error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count,
 442             UIO_SYSSPACE, MNT_WAIT);
 443         if (error != 0) {
 444                 free(buf, M_TEMP);
 445                 free(flep, M_TEMP);
 446                 return (error);
 447         }
 448
 449         for (sp = buf; count > 0; sp++, count--) {
 450                 /* determine device name */
 451                 mntfrom = sp->f_mntfromname;
 452
 453                 /* determine mount point */
 454                 mntto = sp->f_mntonname;
 455                 if (strncmp(mntto, lep, lep_len) == 0 && mntto[lep_len] == '/')
 456                         mntto += lep_len;
 457
 458                 /* determine fs type */
 459                 fstype = sp->f_fstypename;
 460                 if (strcmp(fstype, pn->pn_info->pi_name) == 0)
 461                         mntfrom = fstype = "proc";
 462                 else if (strcmp(fstype, "procfs") == 0)
 463                         continue;
 464
 465                 if (strcmp(fstype, "linsysfs") == 0) {
 466                         sbuf_printf(sb, "/sys %s sysfs %s", mntto,
 467                             sp->f_flags & MNT_RDONLY ? "ro" : "rw");
 468                 } else {
 469                         /* For Linux msdosfs is called vfat */
 470                         if (strcmp(fstype, "msdosfs") == 0)
 471                                 fstype = "vfat";
 472                         sbuf_printf(sb, "%s %s %s %s", mntfrom, mntto, fstype,
 473                             sp->f_flags & MNT_RDONLY ? "ro" : "rw");
 474                 }
 475 #define ADD_OPTION(opt, name) \
 476         if (sp->f_flags & (opt)) sbuf_printf(sb, "," name);
 477                 ADD_OPTION(MNT_SYNCHRONOUS,     "sync");
 478                 ADD_OPTION(MNT_NOEXEC,          "noexec");
 479                 ADD_OPTION(MNT_NOSUID,          "nosuid");
 480                 ADD_OPTION(MNT_UNION,           "union");
 481                 ADD_OPTION(MNT_ASYNC,           "async");
 482                 ADD_OPTION(MNT_SUIDDIR,         "suiddir");
 483                 ADD_OPTION(MNT_NOSYMFOLLOW,     "nosymfollow");
 484                 ADD_OPTION(MNT_NOATIME,         "noatime");
 485 #undef ADD_OPTION
 486                 /* a real Linux mtab will also show NFS options */
 487                 sbuf_printf(sb, " 0 0\n");
 488         }
 489
 490         free(buf, M_TEMP);
 491         free(flep, M_TEMP);
 492         return (error);
 493 }
 494
 495 /*
 496  * Filler function for proc/partitions
 497  */
 498 static int
 499 linprocfs_dopartitions(PFS_FILL_ARGS)
 500 {
 501         struct g_class *cp;
 502         struct g_geom *gp;
 503         struct g_provider *pp;
 504         int major, minor;
 505
 506         g_topology_lock();
 507         sbuf_printf(sb, "major minor  #blocks  name rio rmerge rsect "
 508             "ruse wio wmerge wsect wuse running use aveq\n");
 509
 510         LIST_FOREACH(cp, &g_classes, class) {
 511                 if (strcmp(cp->name, "DISK") == 0 ||
 512                     strcmp(cp->name, "PART") == 0)
 513                         LIST_FOREACH(gp, &cp->geom, geom) {
 514                                 LIST_FOREACH(pp, &gp->provider, provider) {
 515                                         if (linux_driver_get_major_minor(
 516                                             pp->name, &major, &minor) != 0) {
 517                                                 major = 0;
 518                                                 minor = 0;
 519                                         }
 520                                         sbuf_printf(sb, "%d %d %lld %s "
 521                                             "%d %d %d %d %d "
 522                                              "%d %d %d %d %d %d\n",
 523                                              major, minor,
 524                                              (long long)pp->mediasize, pp->name,
 525                                              0, 0, 0, 0, 0,
 526                                              0, 0, 0, 0, 0, 0);
 527                                 }
 528                         }
 529         }
 530         g_topology_unlock();
 531
 532         return (0);
 533 }
 534
 535 /*
 536  * Filler function for proc/stat
 537  *
 538  * Output depends on kernel version:
 539  *
 540  * v2.5.40 <=
 541  *   user nice system idle
 542  * v2.5.41
 543  *   user nice system idle iowait
 544  * v2.6.11
 545  *   user nice system idle iowait irq softirq steal
 546  * v2.6.24
 547  *   user nice system idle iowait irq softirq steal guest
 548  * v2.6.33 >=
 549  *   user nice system idle iowait irq softirq steal guest guest_nice
 550  */
 551 static int
 552 linprocfs_dostat(PFS_FILL_ARGS)
 553 {
 554         struct pcpu *pcpu;
 555         long cp_time[CPUSTATES];
 556         long *cp;
 557         struct timeval boottime;
 558         int i;
 559         char *zero_pad;
 560         bool has_intr = true;
 561
 562         if (linux_kernver(td) >= LINUX_KERNVER(2,6,33)) {
 563                 zero_pad = " 0 0 0 0\n";
 564         } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,24)) {
 565                 zero_pad = " 0 0 0\n";
 566         } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,11)) {
 567                 zero_pad = " 0 0\n";
 568         } else if (linux_kernver(td) >= LINUX_KERNVER(2,5,41)) {
 569                 has_intr = false;
 570                 zero_pad = " 0\n";
 571         } else {
 572                 has_intr = false;
 573                 zero_pad = "\n";
 574         }
 575
 576         read_cpu_time(cp_time);
 577         getboottime(&boottime);
 578         /* Parameters common to all versions */
 579         sbuf_printf(sb, "cpu %lu %lu %lu %lu",
 580             T2J(cp_time[CP_USER]),
 581             T2J(cp_time[CP_NICE]),
 582             T2J(cp_time[CP_SYS]),
 583             T2J(cp_time[CP_IDLE]));
 584
 585         /* Print interrupt stats if available */
 586         if (has_intr) {
 587                 sbuf_printf(sb, " 0 %lu", T2J(cp_time[CP_INTR]));
 588         }
 589
 590         /* Pad out remaining fields depending on version */
 591         sbuf_printf(sb, "%s", zero_pad);
 592
 593         CPU_FOREACH(i) {
 594                 pcpu = pcpu_find(i);
 595                 cp = pcpu->pc_cp_time;
 596                 sbuf_printf(sb, "cpu%d %lu %lu %lu %lu", i,
 597                     T2J(cp[CP_USER]),
 598                     T2J(cp[CP_NICE]),
 599                     T2J(cp[CP_SYS]),
 600                     T2J(cp[CP_IDLE]));
 601
 602                 if (has_intr) {
 603                         sbuf_printf(sb, " 0 %lu", T2J(cp[CP_INTR]));
 604                 }
 605
 606                 sbuf_printf(sb, "%s", zero_pad);
 607         }
 608         sbuf_printf(sb,
 609             "disk 0 0 0 0\n"
 610             "page %ju %ju\n"
 611             "swap %ju %ju\n"
 612             "intr %ju\n"
 613             "ctxt %ju\n"
 614             "btime %lld\n",
 615             (uintmax_t)VM_CNT_FETCH(v_vnodepgsin),
 616             (uintmax_t)VM_CNT_FETCH(v_vnodepgsout),
 617             (uintmax_t)VM_CNT_FETCH(v_swappgsin),
 618             (uintmax_t)VM_CNT_FETCH(v_swappgsout),
 619             (uintmax_t)VM_CNT_FETCH(v_intr),
 620             (uintmax_t)VM_CNT_FETCH(v_swtch),
 621             (long long)boottime.tv_sec);
 622         return (0);
 623 }
 624
 625 static int
 626 linprocfs_doswaps(PFS_FILL_ARGS)
 627 {
 628         struct xswdev xsw;
 629         uintmax_t total, used;
 630         int n;
 631         char devname[SPECNAMELEN + 1];
 632
 633         sbuf_printf(sb, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
 634         for (n = 0; ; n++) {
 635                 if (swap_dev_info(n, &xsw, devname, sizeof(devname)) != 0)
 636                         break;
 637                 total = (uintmax_t)xsw.xsw_nblks * PAGE_SIZE / 1024;
 638                 used  = (uintmax_t)xsw.xsw_used * PAGE_SIZE / 1024;
 639
 640                 /*
 641                  * The space and not tab after the device name is on
 642                  * purpose.  Linux does so.
 643                  */
 644                 sbuf_printf(sb, "/dev/%-34s unknown\t\t%jd\t%jd\t-1\n",
 645                     devname, total, used);
 646         }
 647         return (0);
 648 }
 649
 650 /*
 651  * Filler function for proc/uptime
 652  */
 653 static int
 654 linprocfs_douptime(PFS_FILL_ARGS)
 655 {
 656         long cp_time[CPUSTATES];
 657         struct timeval tv;
 658
 659         getmicrouptime(&tv);
 660         read_cpu_time(cp_time);
 661         sbuf_printf(sb, "%lld.%02ld %ld.%02lu\n",
 662             (long long)tv.tv_sec, tv.tv_usec / 10000,
 663             T2S(cp_time[CP_IDLE] / mp_ncpus),
 664             T2CS(cp_time[CP_IDLE] / mp_ncpus) % 100);
 665         return (0);
 666 }
 667
 668 /*
 669  * Get OS build date
 670  */
 671 static void
 672 linprocfs_osbuild(struct thread *td, struct sbuf *sb)
 673 {
 674 #if 0
 675         char osbuild[256];
 676         char *cp1, *cp2;
 677
 678         strncpy(osbuild, version, 256);
 679         osbuild[255] = '\0';
 680         cp1 = strstr(osbuild, "\n");
 681         cp2 = strstr(osbuild, ":");
 682         if (cp1 && cp2) {
 683                 *cp1 = *cp2 = '\0';
 684                 cp1 = strstr(osbuild, "#");
 685         } else
 686                 cp1 = NULL;
 687         if (cp1)
 688                 sbuf_printf(sb, "%s%s", cp1, cp2 + 1);
 689         else
 690 #endif
 691                 sbuf_cat(sb, "#4 Sun Dec 18 04:30:00 CET 1977");
 692 }
 693
 694 /*
 695  * Get OS builder
 696  */
 697 static void
 698 linprocfs_osbuilder(struct thread *td, struct sbuf *sb)
 699 {
 700 #if 0
 701         char builder[256];
 702         char *cp;
 703
 704         cp = strstr(version, "\n    ");
 705         if (cp) {
 706                 strncpy(builder, cp + 5, 256);
 707                 builder[255] = '\0';
 708                 cp = strstr(builder, ":");
 709                 if (cp)
 710                         *cp = '\0';
 711         }
 712         if (cp)
 713                 sbuf_cat(sb, builder);
 714         else
 715 #endif
 716                 sbuf_cat(sb, "des@freebsd.org");
 717 }
 718
 719 /*
 720  * Filler function for proc/version
 721  */
 722 static int
 723 linprocfs_doversion(PFS_FILL_ARGS)
 724 {
 725         char osname[LINUX_MAX_UTSNAME];
 726         char osrelease[LINUX_MAX_UTSNAME];
 727
 728         linux_get_osname(td, osname);
 729         linux_get_osrelease(td, osrelease);
 730         sbuf_printf(sb, "%s version %s (", osname, osrelease);
 731         linprocfs_osbuilder(td, sb);
 732         sbuf_cat(sb, ") (gcc version " __VERSION__ ") ");
 733         linprocfs_osbuild(td, sb);
 734         sbuf_cat(sb, "\n");
 735
 736         return (0);
 737 }
 738
 739 /*
 740  * Filler function for proc/loadavg
 741  */
 742 static int
 743 linprocfs_doloadavg(PFS_FILL_ARGS)
 744 {
 745
 746         sbuf_printf(sb,
 747             "%d.%02d %d.%02d %d.%02d %d/%d %d\n",
 748             (int)(averunnable.ldavg[0] / averunnable.fscale),
 749             (int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100),
 750             (int)(averunnable.ldavg[1] / averunnable.fscale),
 751             (int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100),
 752             (int)(averunnable.ldavg[2] / averunnable.fscale),
 753             (int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100),
 754             1,                          /* number of running tasks */
 755             nprocs,                     /* number of tasks */
 756             lastpid                     /* the last pid */
 757         );
 758         return (0);
 759 }
 760
 761 /*
 762  * Filler function for proc/pid/stat
 763  */
 764 static int
 765 linprocfs_doprocstat(PFS_FILL_ARGS)
 766 {
 767         struct kinfo_proc kp;
 768         struct timeval boottime;
 769         char state;
 770         static int ratelimit = 0;
 771         vm_offset_t startcode, startdata;
 772
 773         getboottime(&boottime);
 774         sx_slock(&proctree_lock);
 775         PROC_LOCK(p);
 776         fill_kinfo_proc(p, &kp);
 777         sx_sunlock(&proctree_lock);
 778         if (p->p_vmspace) {
 779            startcode = (vm_offset_t)p->p_vmspace->vm_taddr;
 780            startdata = (vm_offset_t)p->p_vmspace->vm_daddr;
 781         } else {
 782            startcode = 0;
 783            startdata = 0;
 784         }
 785         sbuf_printf(sb, "%d", p->p_pid);
 786 #define PS_ADD(name, fmt, arg) sbuf_printf(sb, " " fmt, arg)
 787         PS_ADD("comm",          "(%s)", p->p_comm);
 788         if (kp.ki_stat > sizeof(linux_state)) {
 789                 state = 'R';
 790
 791                 if (ratelimit == 0) {
 792                         printf("linprocfs: don't know how to handle unknown FreeBSD state %d/%zd, mapping to R\n",
 793                             kp.ki_stat, sizeof(linux_state));
 794                         ++ratelimit;
 795                 }
 796         } else
 797                 state = linux_state[kp.ki_stat - 1];
 798         PS_ADD("state",         "%c",   state);
 799         PS_ADD("ppid",          "%d",   p->p_pptr ? p->p_pptr->p_pid : 0);
 800         PS_ADD("pgrp",          "%d",   p->p_pgid);
 801         PS_ADD("session",       "%d",   p->p_session->s_sid);
 802         PROC_UNLOCK(p);
 803         PS_ADD("tty",           "%ju",  (uintmax_t)kp.ki_tdev);
 804         PS_ADD("tpgid",         "%d",   kp.ki_tpgid);
 805         PS_ADD("flags",         "%u",   0); /* XXX */
 806         PS_ADD("minflt",        "%lu",  kp.ki_rusage.ru_minflt);
 807         PS_ADD("cminflt",       "%lu",  kp.ki_rusage_ch.ru_minflt);
 808         PS_ADD("majflt",        "%lu",  kp.ki_rusage.ru_majflt);
 809         PS_ADD("cmajflt",       "%lu",  kp.ki_rusage_ch.ru_majflt);
 810         PS_ADD("utime",         "%ld",  TV2J(&kp.ki_rusage.ru_utime));
 811         PS_ADD("stime",         "%ld",  TV2J(&kp.ki_rusage.ru_stime));
 812         PS_ADD("cutime",        "%ld",  TV2J(&kp.ki_rusage_ch.ru_utime));
 813         PS_ADD("cstime",        "%ld",  TV2J(&kp.ki_rusage_ch.ru_stime));
 814         PS_ADD("priority",      "%d",   kp.ki_pri.pri_user);
 815         PS_ADD("nice",          "%d",   kp.ki_nice); /* 19 (nicest) to -19 */
 816         PS_ADD("0",             "%d",   0); /* removed field */
 817         PS_ADD("itrealvalue",   "%d",   0); /* XXX */
 818         PS_ADD("starttime",     "%lu",  TV2J(&kp.ki_start) - TV2J(&boottime));
 819         PS_ADD("vsize",         "%ju",  P2K((uintmax_t)kp.ki_size));
 820         PS_ADD("rss",           "%ju",  (uintmax_t)kp.ki_rssize);
 821         PS_ADD("rlim",          "%lu",  kp.ki_rusage.ru_maxrss);
 822         PS_ADD("startcode",     "%ju",  (uintmax_t)startcode);
 823         PS_ADD("endcode",       "%ju",  (uintmax_t)startdata);
 824         PS_ADD("startstack",    "%u",   0); /* XXX */
 825         PS_ADD("kstkesp",       "%u",   0); /* XXX */
 826         PS_ADD("kstkeip",       "%u",   0); /* XXX */
 827         PS_ADD("signal",        "%u",   0); /* XXX */
 828         PS_ADD("blocked",       "%u",   0); /* XXX */
 829         PS_ADD("sigignore",     "%u",   0); /* XXX */
 830         PS_ADD("sigcatch",      "%u",   0); /* XXX */
 831         PS_ADD("wchan",         "%u",   0); /* XXX */
 832         PS_ADD("nswap",         "%lu",  kp.ki_rusage.ru_nswap);
 833         PS_ADD("cnswap",        "%lu",  kp.ki_rusage_ch.ru_nswap);
 834         PS_ADD("exitsignal",    "%d",   0); /* XXX */
 835         PS_ADD("processor",     "%u",   kp.ki_lastcpu);
 836         PS_ADD("rt_priority",   "%u",   0); /* XXX */ /* >= 2.5.19 */
 837         PS_ADD("policy",        "%u",   kp.ki_pri.pri_class); /* >= 2.5.19 */
 838 #undef PS_ADD
 839         sbuf_putc(sb, '\n');
 840
 841         return (0);
 842 }
 843
 844 /*
 845  * Filler function for proc/pid/statm
 846  */
 847 static int
 848 linprocfs_doprocstatm(PFS_FILL_ARGS)
 849 {
 850         struct kinfo_proc kp;
 851         segsz_t lsize;
 852
 853         sx_slock(&proctree_lock);
 854         PROC_LOCK(p);
 855         fill_kinfo_proc(p, &kp);
 856         PROC_UNLOCK(p);
 857         sx_sunlock(&proctree_lock);
 858
 859         /*
 860          * See comments in linprocfs_doprocstatus() regarding the
 861          * computation of lsize.
 862          */
 863         /* size resident share trs drs lrs dt */
 864         sbuf_printf(sb, "%ju ", B2P((uintmax_t)kp.ki_size));
 865         sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_rssize);
 866         sbuf_printf(sb, "%ju ", (uintmax_t)0); /* XXX */
 867         sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_tsize);
 868         sbuf_printf(sb, "%ju ", (uintmax_t)(kp.ki_dsize + kp.ki_ssize));
 869         lsize = B2P(kp.ki_size) - kp.ki_dsize -
 870             kp.ki_ssize - kp.ki_tsize - 1;
 871         sbuf_printf(sb, "%ju ", (uintmax_t)lsize);
 872         sbuf_printf(sb, "%ju\n", (uintmax_t)0); /* XXX */
 873
 874         return (0);
 875 }
 876
 877 /*
 878  * Filler function for proc/pid/status
 879  */
 880 static int
 881 linprocfs_doprocstatus(PFS_FILL_ARGS)
 882 {
 883         struct kinfo_proc kp;
 884         char *state;
 885         segsz_t lsize;
 886         struct thread *td2;
 887         struct sigacts *ps;
 888         l_sigset_t siglist, sigignore, sigcatch;
 889         int i;
 890
 891         sx_slock(&proctree_lock);
 892         PROC_LOCK(p);
 893         td2 = FIRST_THREAD_IN_PROC(p); /* XXXKSE pretend only one thread */
 894
 895         if (P_SHOULDSTOP(p)) {
 896                 state = "T (stopped)";
 897         } else {
 898                 switch(p->p_state) {
 899                 case PRS_NEW:
 900                         state = "I (idle)";
 901                         break;
 902                 case PRS_NORMAL:
 903                         if (p->p_flag & P_WEXIT) {
 904                                 state = "X (exiting)";
 905                                 break;
 906                         }
 907                         switch(td2->td_state) {
 908                         case TDS_INHIBITED:
 909                                 state = "S (sleeping)";
 910                                 break;
 911                         case TDS_RUNQ:
 912                         case TDS_RUNNING:
 913                                 state = "R (running)";
 914                                 break;
 915                         default:
 916                                 state = "? (unknown)";
 917                                 break;
 918                         }
 919                         break;
 920                 case PRS_ZOMBIE:
 921                         state = "Z (zombie)";
 922                         break;
 923                 default:
 924                         state = "? (unknown)";
 925                         break;
 926                 }
 927         }
 928
 929         fill_kinfo_proc(p, &kp);
 930         sx_sunlock(&proctree_lock);
 931
 932         sbuf_printf(sb, "Name:\t%s\n",          p->p_comm); /* XXX escape */
 933         sbuf_printf(sb, "State:\t%s\n",         state);
 934
 935         /*
 936          * Credentials
 937          */
 938         sbuf_printf(sb, "Pid:\t%d\n",           p->p_pid);
 939         sbuf_printf(sb, "PPid:\t%d\n",          kp.ki_ppid );
 940         sbuf_printf(sb, "TracerPid:\t%d\n",     kp.ki_tracer );
 941         sbuf_printf(sb, "Uid:\t%d %d %d %d\n",  p->p_ucred->cr_ruid,
 942                                                 p->p_ucred->cr_uid,
 943                                                 p->p_ucred->cr_svuid,
 944                                                 /* FreeBSD doesn't have fsuid */
 945                                                 p->p_ucred->cr_uid);
 946         sbuf_printf(sb, "Gid:\t%d %d %d %d\n",  p->p_ucred->cr_rgid,
 947                                                 p->p_ucred->cr_gid,
 948                                                 p->p_ucred->cr_svgid,
 949                                                 /* FreeBSD doesn't have fsgid */
 950                                                 p->p_ucred->cr_gid);
 951         sbuf_cat(sb, "Groups:\t");
 952         for (i = 0; i < p->p_ucred->cr_ngroups; i++)
 953                 sbuf_printf(sb, "%d ",          p->p_ucred->cr_groups[i]);
 954         PROC_UNLOCK(p);
 955         sbuf_putc(sb, '\n');
 956
 957         /*
 958          * Memory
 959          *
 960          * While our approximation of VmLib may not be accurate (I
 961          * don't know of a simple way to verify it, and I'm not sure
 962          * it has much meaning anyway), I believe it's good enough.
 963          *
 964          * The same code that could (I think) accurately compute VmLib
 965          * could also compute VmLck, but I don't really care enough to
 966          * implement it. Submissions are welcome.
 967          */
 968         sbuf_printf(sb, "VmSize:\t%8ju kB\n",   B2K((uintmax_t)kp.ki_size));
 969         sbuf_printf(sb, "VmLck:\t%8u kB\n",     P2K(0)); /* XXX */
 970         sbuf_printf(sb, "VmRSS:\t%8ju kB\n",    P2K((uintmax_t)kp.ki_rssize));
 971         sbuf_printf(sb, "VmData:\t%8ju kB\n",   P2K((uintmax_t)kp.ki_dsize));
 972         sbuf_printf(sb, "VmStk:\t%8ju kB\n",    P2K((uintmax_t)kp.ki_ssize));
 973         sbuf_printf(sb, "VmExe:\t%8ju kB\n",    P2K((uintmax_t)kp.ki_tsize));
 974         lsize = B2P(kp.ki_size) - kp.ki_dsize -
 975             kp.ki_ssize - kp.ki_tsize - 1;
 976         sbuf_printf(sb, "VmLib:\t%8ju kB\n",    P2K((uintmax_t)lsize));
 977
 978         /*
 979          * Signal masks
 980          */
 981         PROC_LOCK(p);
 982         bsd_to_linux_sigset(&p->p_siglist, &siglist);
 983         ps = p->p_sigacts;
 984         mtx_lock(&ps->ps_mtx);
 985         bsd_to_linux_sigset(&ps->ps_sigignore, &sigignore);
 986         bsd_to_linux_sigset(&ps->ps_sigcatch, &sigcatch);
 987         mtx_unlock(&ps->ps_mtx);
 988         PROC_UNLOCK(p);
 989
 990         sbuf_printf(sb, "SigPnd:\t%016jx\n",    siglist.__mask);
 991         /*
 992          * XXX. SigBlk - target thread's signal mask, td_sigmask.
 993          * To implement SigBlk pseudofs should support proc/tid dir entries.
 994          */
 995         sbuf_printf(sb, "SigBlk:\t%016x\n",     0);
 996         sbuf_printf(sb, "SigIgn:\t%016jx\n",    sigignore.__mask);
 997         sbuf_printf(sb, "SigCgt:\t%016jx\n",    sigcatch.__mask);
 998
 999         /*
1000          * Linux also prints the capability masks, but we don't have
1001          * capabilities yet, and when we do get them they're likely to
1002          * be meaningless to Linux programs, so we lie. XXX
1003          */
1004         sbuf_printf(sb, "CapInh:\t%016x\n",     0);
1005         sbuf_printf(sb, "CapPrm:\t%016x\n",     0);
1006         sbuf_printf(sb, "CapEff:\t%016x\n",     0);
1007
1008         return (0);
1009 }
1010
1011
1012 /*
1013  * Filler function for proc/pid/cwd
1014  */
1015 static int
1016 linprocfs_doproccwd(PFS_FILL_ARGS)
1017 {
1018         struct filedesc *fdp;
1019         struct vnode *vp;
1020         char *fullpath = "unknown";
1021         char *freepath = NULL;
1022
1023         fdp = p->p_fd;
1024         FILEDESC_SLOCK(fdp);
1025         vp = fdp->fd_cdir;
1026         if (vp != NULL)
1027                 VREF(vp);
1028         FILEDESC_SUNLOCK(fdp);
1029         vn_fullpath(td, vp, &fullpath, &freepath);
1030         if (vp != NULL)
1031                 vrele(vp);
1032         sbuf_printf(sb, "%s", fullpath);
1033         if (freepath)
1034                 free(freepath, M_TEMP);
1035         return (0);
1036 }
1037
1038 /*
1039  * Filler function for proc/pid/root
1040  */
1041 static int
1042 linprocfs_doprocroot(PFS_FILL_ARGS)
1043 {
1044         struct filedesc *fdp;
1045         struct vnode *vp;
1046         char *fullpath = "unknown";
1047         char *freepath = NULL;
1048
1049         fdp = p->p_fd;
1050         FILEDESC_SLOCK(fdp);
1051         vp = jailed(p->p_ucred) ? fdp->fd_jdir : fdp->fd_rdir;
1052         if (vp != NULL)
1053                 VREF(vp);
1054         FILEDESC_SUNLOCK(fdp);
1055         vn_fullpath(td, vp, &fullpath, &freepath);
1056         if (vp != NULL)
1057                 vrele(vp);
1058         sbuf_printf(sb, "%s", fullpath);
1059         if (freepath)
1060                 free(freepath, M_TEMP);
1061         return (0);
1062 }
1063
1064 /*
1065  * Filler function for proc/pid/cmdline
1066  */
1067 static int
1068 linprocfs_doproccmdline(PFS_FILL_ARGS)
1069 {
1070         int ret;
1071
1072         PROC_LOCK(p);
1073         if ((ret = p_cansee(td, p)) != 0) {
1074                 PROC_UNLOCK(p);
1075                 return (ret);
1076         }
1077
1078         /*
1079          * Mimic linux behavior and pass only processes with usermode
1080          * address space as valid.  Return zero silently otherwize.
1081          */
1082         if (p->p_vmspace == &vmspace0) {
1083                 PROC_UNLOCK(p);
1084                 return (0);
1085         }
1086         if (p->p_args != NULL) {
1087                 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length);
1088                 PROC_UNLOCK(p);
1089                 return (0);
1090         }
1091
1092         if ((p->p_flag & P_SYSTEM) != 0) {
1093                 PROC_UNLOCK(p);
1094                 return (0);
1095         }
1096
1097         PROC_UNLOCK(p);
1098
1099         ret = proc_getargv(td, p, sb);
1100         return (ret);
1101 }
1102
1103 /*
1104  * Filler function for proc/pid/environ
1105  */
1106 static int
1107 linprocfs_doprocenviron(PFS_FILL_ARGS)
1108 {
1109
1110         /*
1111          * Mimic linux behavior and pass only processes with usermode
1112          * address space as valid.  Return zero silently otherwize.
1113          */
1114         if (p->p_vmspace == &vmspace0)
1115                 return (0);
1116
1117         return (proc_getenvv(td, p, sb));
1118 }
1119
1120 static char l32_map_str[] = "%08lx-%08lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n";
1121 static char l64_map_str[] = "%016lx-%016lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n";
1122 static char vdso_str[] = "      [vdso]";
1123 static char stack_str[] = "      [stack]";
1124
1125 /*
1126  * Filler function for proc/pid/maps
1127  */
1128 static int
1129 linprocfs_doprocmaps(PFS_FILL_ARGS)
1130 {
1131         struct vmspace *vm;
1132         vm_map_t map;
1133         vm_map_entry_t entry, tmp_entry;
1134         vm_object_t obj, tobj, lobj;
1135         vm_offset_t e_start, e_end;
1136         vm_ooffset_t off = 0;
1137         vm_prot_t e_prot;
1138         unsigned int last_timestamp;
1139         char *name = "", *freename = NULL;
1140         const char *l_map_str;
1141         ino_t ino;
1142         int ref_count, shadow_count, flags;
1143         int error;
1144         struct vnode *vp;
1145         struct vattr vat;
1146
1147         PROC_LOCK(p);
1148         error = p_candebug(td, p);
1149         PROC_UNLOCK(p);
1150         if (error)
1151                 return (error);
1152
1153         if (uio->uio_rw != UIO_READ)
1154                 return (EOPNOTSUPP);
1155
1156         error = 0;
1157         vm = vmspace_acquire_ref(p);
1158         if (vm == NULL)
1159                 return (ESRCH);
1160
1161         if (SV_CURPROC_FLAG(SV_LP64))
1162                 l_map_str = l64_map_str;
1163         else
1164                 l_map_str = l32_map_str;
1165         map = &vm->vm_map;
1166         vm_map_lock_read(map);
1167         for (entry = map->header.next; entry != &map->header;
1168             entry = entry->next) {
1169                 name = "";
1170                 freename = NULL;
1171                 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
1172                         continue;
1173                 e_prot = entry->protection;
1174                 e_start = entry->start;
1175                 e_end = entry->end;
1176                 obj = entry->object.vm_object;
1177                 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
1178                         VM_OBJECT_RLOCK(tobj);
1179                         if (lobj != obj)
1180                                 VM_OBJECT_RUNLOCK(lobj);
1181                         lobj = tobj;
1182                 }
1183                 last_timestamp = map->timestamp;
1184                 vm_map_unlock_read(map);
1185                 ino = 0;
1186                 if (lobj) {
1187                         off = IDX_TO_OFF(lobj->size);
1188                         vp = vm_object_vnode(lobj);
1189                         if (vp != NULL)
1190                                 vref(vp);
1191                         if (lobj != obj)
1192                                 VM_OBJECT_RUNLOCK(lobj);
1193                         flags = obj->flags;
1194                         ref_count = obj->ref_count;
1195                         shadow_count = obj->shadow_count;
1196                         VM_OBJECT_RUNLOCK(obj);
1197                         if (vp != NULL) {
1198                                 vn_fullpath(td, vp, &name, &freename);
1199                                 vn_lock(vp, LK_SHARED | LK_RETRY);
1200                                 VOP_GETATTR(vp, &vat, td->td_ucred);
1201                                 ino = vat.va_fileid;
1202                                 vput(vp);
1203                         } else if (SV_PROC_ABI(p) == SV_ABI_LINUX) {
1204                                 if (e_start == p->p_sysent->sv_shared_page_base)
1205                                         name = vdso_str;
1206                                 if (e_end == p->p_sysent->sv_usrstack)
1207                                         name = stack_str;
1208                         }
1209                 } else {
1210                         flags = 0;
1211                         ref_count = 0;
1212                         shadow_count = 0;
1213                 }
1214
1215                 /*
1216                  * format:
1217                  *  start, end, access, offset, major, minor, inode, name.
1218                  */
1219                 error = sbuf_printf(sb, l_map_str,
1220                     (u_long)e_start, (u_long)e_end,
1221                     (e_prot & VM_PROT_READ)?"r":"-",
1222                     (e_prot & VM_PROT_WRITE)?"w":"-",
1223                     (e_prot & VM_PROT_EXECUTE)?"x":"-",
1224                     "p",
1225                     (u_long)off,
1226                     0,
1227                     0,
1228                     (u_long)ino,
1229                     *name ? "     " : "",
1230                     name
1231                     );
1232                 if (freename)
1233                         free(freename, M_TEMP);
1234                 vm_map_lock_read(map);
1235                 if (error == -1) {
1236                         error = 0;
1237                         break;
1238                 }
1239                 if (last_timestamp != map->timestamp) {
1240                         /*
1241                          * Look again for the entry because the map was
1242                          * modified while it was unlocked.  Specifically,
1243                          * the entry may have been clipped, merged, or deleted.
1244                          */
1245                         vm_map_lookup_entry(map, e_end - 1, &tmp_entry);
1246                         entry = tmp_entry;
1247                 }
1248         }
1249         vm_map_unlock_read(map);
1250         vmspace_free(vm);
1251
1252         return (error);
1253 }
1254
1255 /*
1256  * Criteria for interface name translation
1257  */
1258 #define IFP_IS_ETH(ifp) (ifp->if_type == IFT_ETHER)
1259
1260 static int
1261 linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen)
1262 {
1263         struct ifnet *ifscan;
1264         int ethno;
1265
1266         IFNET_RLOCK_ASSERT();
1267
1268         /* Short-circuit non ethernet interfaces */
1269         if (!IFP_IS_ETH(ifp))
1270                 return (strlcpy(buffer, ifp->if_xname, buflen));
1271
1272         /* Determine the (relative) unit number for ethernet interfaces */
1273         ethno = 0;
1274         CK_STAILQ_FOREACH(ifscan, &V_ifnet, if_link) {
1275                 if (ifscan == ifp)
1276                         return (snprintf(buffer, buflen, "eth%d", ethno));
1277                 if (IFP_IS_ETH(ifscan))
1278                         ethno++;
1279         }
1280
1281         return (0);
1282 }
1283
1284 /*
1285  * Filler function for proc/net/dev
1286  */
1287 static int
1288 linprocfs_donetdev(PFS_FILL_ARGS)
1289 {
1290         char ifname[16]; /* XXX LINUX_IFNAMSIZ */
1291         struct ifnet *ifp;
1292
1293         sbuf_printf(sb, "%6s|%58s|%s\n"
1294             "%6s|%58s|%58s\n",
1295             "Inter-", "   Receive", "  Transmit",
1296             " face",
1297             "bytes    packets errs drop fifo frame compressed multicast",
1298             "bytes    packets errs drop fifo colls carrier compressed");
1299
1300         CURVNET_SET(TD_TO_VNET(curthread));
1301         IFNET_RLOCK();
1302         CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
1303                 linux_ifname(ifp, ifname, sizeof ifname);
1304                 sbuf_printf(sb, "%6.6s: ", ifname);
1305                 sbuf_printf(sb, "%7ju %7ju %4ju %4ju %4lu %5lu %10lu %9ju ",
1306                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IBYTES),
1307                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IPACKETS),
1308                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IERRORS),
1309                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IQDROPS),
1310                                                         /* rx_missed_errors */
1311                     0UL,                                /* rx_fifo_errors */
1312                     0UL,                                /* rx_length_errors +
1313                                                          * rx_over_errors +
1314                                                          * rx_crc_errors +
1315                                                          * rx_frame_errors */
1316                     0UL,                                /* rx_compressed */
1317                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IMCASTS));
1318                                                         /* XXX-BZ rx only? */
1319                 sbuf_printf(sb, "%8ju %7ju %4ju %4ju %4lu %5ju %7lu %10lu\n",
1320                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OBYTES),
1321                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OPACKETS),
1322                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OERRORS),
1323                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OQDROPS),
1324                     0UL,                                /* tx_fifo_errors */
1325                     (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_COLLISIONS),
1326                     0UL,                                /* tx_carrier_errors +
1327                                                          * tx_aborted_errors +
1328                                                          * tx_window_errors +
1329                                                          * tx_heartbeat_errors*/
1330                     0UL);                               /* tx_compressed */
1331         }
1332         IFNET_RUNLOCK();
1333         CURVNET_RESTORE();
1334
1335         return (0);
1336 }
1337
1338 /*
1339  * Filler function for proc/sys/kernel/osrelease
1340  */
1341 static int
1342 linprocfs_doosrelease(PFS_FILL_ARGS)
1343 {
1344         char osrelease[LINUX_MAX_UTSNAME];
1345
1346         linux_get_osrelease(td, osrelease);
1347         sbuf_printf(sb, "%s\n", osrelease);
1348
1349         return (0);
1350 }
1351
1352 /*
1353  * Filler function for proc/sys/kernel/ostype
1354  */
1355 static int
1356 linprocfs_doostype(PFS_FILL_ARGS)
1357 {
1358         char osname[LINUX_MAX_UTSNAME];
1359
1360         linux_get_osname(td, osname);
1361         sbuf_printf(sb, "%s\n", osname);
1362
1363         return (0);
1364 }
1365
1366 /*
1367  * Filler function for proc/sys/kernel/version
1368  */
1369 static int
1370 linprocfs_doosbuild(PFS_FILL_ARGS)
1371 {
1372
1373         linprocfs_osbuild(td, sb);
1374         sbuf_cat(sb, "\n");
1375         return (0);
1376 }
1377
1378 /*
1379  * Filler function for proc/sys/kernel/msgmni
1380  */
1381 static int
1382 linprocfs_domsgmni(PFS_FILL_ARGS)
1383 {
1384
1385         sbuf_printf(sb, "%d\n", msginfo.msgmni);
1386         return (0);
1387 }
1388
1389 /*
1390  * Filler function for proc/sys/kernel/pid_max
1391  */
1392 static int
1393 linprocfs_dopid_max(PFS_FILL_ARGS)
1394 {
1395
1396         sbuf_printf(sb, "%i\n", PID_MAX);
1397         return (0);
1398 }
1399
1400 /*
1401  * Filler function for proc/sys/kernel/sem
1402  */
1403 static int
1404 linprocfs_dosem(PFS_FILL_ARGS)
1405 {
1406
1407         sbuf_printf(sb, "%d %d %d %d\n", seminfo.semmsl, seminfo.semmns,
1408             seminfo.semopm, seminfo.semmni);
1409         return (0);
1410 }
1411
1412 /*
1413  * Filler function for proc/sys/vm/min_free_kbytes
1414  *
1415  * This mirrors the approach in illumos to return zero for reads. Effectively,
1416  * it says, no memory is kept in reserve for "atomic allocations". This class
1417  * of allocation can be used at times when a thread cannot be suspended.
1418  */
1419 static int
1420 linprocfs_dominfree(PFS_FILL_ARGS)
1421 {
1422
1423         sbuf_printf(sb, "%d\n", 0);
1424         return (0);
1425 }
1426
1427 /*
1428  * Filler function for proc/scsi/device_info
1429  */
1430 static int
1431 linprocfs_doscsidevinfo(PFS_FILL_ARGS)
1432 {
1433
1434         return (0);
1435 }
1436
1437 /*
1438  * Filler function for proc/scsi/scsi
1439  */
1440 static int
1441 linprocfs_doscsiscsi(PFS_FILL_ARGS)
1442 {
1443
1444         return (0);
1445 }
1446
1447 /*
1448  * Filler function for proc/devices
1449  */
1450 static int
1451 linprocfs_dodevices(PFS_FILL_ARGS)
1452 {
1453         char *char_devices;
1454         sbuf_printf(sb, "Character devices:\n");
1455
1456         char_devices = linux_get_char_devices();
1457         sbuf_printf(sb, "%s", char_devices);
1458         linux_free_get_char_devices(char_devices);
1459
1460         sbuf_printf(sb, "\nBlock devices:\n");
1461
1462         return (0);
1463 }
1464
1465 /*
1466  * Filler function for proc/cmdline
1467  */
1468 static int
1469 linprocfs_docmdline(PFS_FILL_ARGS)
1470 {
1471
1472         sbuf_printf(sb, "BOOT_IMAGE=%s", kernelname);
1473         sbuf_printf(sb, " ro root=302\n");
1474         return (0);
1475 }
1476
1477 /*
1478  * Filler function for proc/filesystems
1479  */
1480 static int
1481 linprocfs_dofilesystems(PFS_FILL_ARGS)
1482 {
1483         struct vfsconf *vfsp;
1484
1485         vfsconf_slock();
1486         TAILQ_FOREACH(vfsp, &vfsconf, vfc_list) {
1487                 if (vfsp->vfc_flags & VFCF_SYNTHETIC)
1488                         sbuf_printf(sb, "nodev");
1489                 sbuf_printf(sb, "\t%s\n", vfsp->vfc_name);
1490         }
1491         vfsconf_sunlock();
1492         return(0);
1493 }
1494
1495 #if 0
1496 /*
1497  * Filler function for proc/modules
1498  */
1499 static int
1500 linprocfs_domodules(PFS_FILL_ARGS)
1501 {
1502         struct linker_file *lf;
1503
1504         TAILQ_FOREACH(lf, &linker_files, link) {
1505                 sbuf_printf(sb, "%-20s%8lu%4d\n", lf->filename,
1506                     (unsigned long)lf->size, lf->refs);
1507         }
1508         return (0);
1509 }
1510 #endif
1511
1512 /*
1513  * Filler function for proc/pid/fd
1514  */
1515 static int
1516 linprocfs_dofdescfs(PFS_FILL_ARGS)
1517 {
1518
1519         if (p == curproc)
1520                 sbuf_printf(sb, "/dev/fd");
1521         else
1522                 sbuf_printf(sb, "unknown");
1523         return (0);
1524 }
1525
1526 /*
1527  * Filler function for proc/pid/limits
1528  */
1529 static const struct linux_rlimit_ident {
1530         const char      *desc;
1531         const char      *unit;
1532         unsigned int    rlim_id;
1533 } linux_rlimits_ident[] = {
1534         { "Max cpu time",       "seconds",      RLIMIT_CPU },
1535         { "Max file size",      "bytes",        RLIMIT_FSIZE },
1536         { "Max data size",      "bytes",        RLIMIT_DATA },
1537         { "Max stack size",     "bytes",        RLIMIT_STACK },
1538         { "Max core file size",  "bytes",       RLIMIT_CORE },
1539         { "Max resident set",   "bytes",        RLIMIT_RSS },
1540         { "Max processes",      "processes",    RLIMIT_NPROC },
1541         { "Max open files",     "files",        RLIMIT_NOFILE },
1542         { "Max locked memory",  "bytes",        RLIMIT_MEMLOCK },
1543         { "Max address space",  "bytes",        RLIMIT_AS },
1544         { "Max file locks",     "locks",        LINUX_RLIMIT_LOCKS },
1545         { "Max pending signals", "signals",     LINUX_RLIMIT_SIGPENDING },
1546         { "Max msgqueue size",  "bytes",        LINUX_RLIMIT_MSGQUEUE },
1547         { "Max nice priority",          "",     LINUX_RLIMIT_NICE },
1548         { "Max realtime priority",      "",     LINUX_RLIMIT_RTPRIO },
1549         { "Max realtime timeout",       "us",   LINUX_RLIMIT_RTTIME },
1550         { 0, 0, 0 }
1551 };
1552
1553 static int
1554 linprocfs_doproclimits(PFS_FILL_ARGS)
1555 {
1556         const struct linux_rlimit_ident *li;
1557         struct plimit *limp;
1558         struct rlimit rl;
1559         ssize_t size;
1560         int res, error;
1561
1562         error = 0;
1563
1564         PROC_LOCK(p);
1565         limp = lim_hold(p->p_limit);
1566         PROC_UNLOCK(p);
1567         size = sizeof(res);
1568         sbuf_printf(sb, "%-26s%-21s%-21s%-21s\n", "Limit", "Soft Limit",
1569                         "Hard Limit", "Units");
1570         for (li = linux_rlimits_ident; li->desc != NULL; ++li) {
1571                 switch (li->rlim_id)
1572                 {
1573                 case LINUX_RLIMIT_LOCKS:
1574                         /* FALLTHROUGH */
1575                 case LINUX_RLIMIT_RTTIME:
1576                         rl.rlim_cur = RLIM_INFINITY;
1577                         break;
1578                 case LINUX_RLIMIT_SIGPENDING:
1579                         error = kernel_sysctlbyname(td,
1580                             "kern.sigqueue.max_pending_per_proc",
1581                             &res, &size, 0, 0, 0, 0);
1582                         if (error != 0)
1583                                 goto out;
1584                         rl.rlim_cur = res;
1585                         rl.rlim_max = res;
1586                         break;
1587                 case LINUX_RLIMIT_MSGQUEUE:
1588                         error = kernel_sysctlbyname(td,
1589                             "kern.ipc.msgmnb", &res, &size, 0, 0, 0, 0);
1590                         if (error != 0)
1591                                 goto out;
1592                         rl.rlim_cur = res;
1593                         rl.rlim_max = res;
1594                         break;
1595                 case LINUX_RLIMIT_NICE:
1596                         /* FALLTHROUGH */
1597                 case LINUX_RLIMIT_RTPRIO:
1598                         rl.rlim_cur = 0;
1599                         rl.rlim_max = 0;
1600                         break;
1601                 default:
1602                         rl = limp->pl_rlimit[li->rlim_id];
1603                         break;
1604                 }
1605                 if (rl.rlim_cur == RLIM_INFINITY)
1606                         sbuf_printf(sb, "%-26s%-21s%-21s%-10s\n",
1607                             li->desc, "unlimited", "unlimited", li->unit);
1608                 else
1609                         sbuf_printf(sb, "%-26s%-21llu%-21llu%-10s\n",
1610                             li->desc, (unsigned long long)rl.rlim_cur,
1611                             (unsigned long long)rl.rlim_max, li->unit);
1612         }
1613 out:
1614         lim_free(limp);
1615         return (error);
1616 }
1617
1618 /*
1619  * Filler function for proc/sys/kernel/random/uuid
1620  */
1621 static int
1622 linprocfs_douuid(PFS_FILL_ARGS)
1623 {
1624         struct uuid uuid;
1625
1626         kern_uuidgen(&uuid, 1);
1627         sbuf_printf_uuid(sb, &uuid);
1628         sbuf_printf(sb, "\n");
1629         return(0);
1630 }
1631
1632 /*
1633  * Filler function for proc/pid/auxv
1634  */
1635 static int
1636 linprocfs_doauxv(PFS_FILL_ARGS)
1637 {
1638         struct sbuf *asb;
1639         off_t buflen, resid;
1640         int error;
1641
1642         /*
1643          * Mimic linux behavior and pass only processes with usermode
1644          * address space as valid. Return zero silently otherwise.
1645          */
1646         if (p->p_vmspace == &vmspace0)
1647                 return (0);
1648
1649         if (uio->uio_resid == 0)
1650                 return (0);
1651         if (uio->uio_offset < 0 || uio->uio_resid < 0)
1652                 return (EINVAL);
1653
1654         asb = sbuf_new_auto();
1655         if (asb == NULL)
1656                 return (ENOMEM);
1657         error = proc_getauxv(td, p, asb);
1658         if (error == 0)
1659                 error = sbuf_finish(asb);
1660
1661         resid = sbuf_len(asb) - uio->uio_offset;
1662         if (resid > uio->uio_resid)
1663                 buflen = uio->uio_resid;
1664         else
1665                 buflen = resid;
1666         if (buflen > IOSIZE_MAX)
1667                 return (EINVAL);
1668         if (buflen > MAXPHYS)
1669                 buflen = MAXPHYS;
1670         if (resid <= 0)
1671                 return (0);
1672
1673         if (error == 0)
1674                 error = uiomove(sbuf_data(asb) + uio->uio_offset, buflen, uio);
1675         sbuf_delete(asb);
1676         return (error);
1677 }
1678
1679 /*
1680  * Constructor
1681  */
1682 static int
1683 linprocfs_init(PFS_INIT_ARGS)
1684 {
1685         struct pfs_node *root;
1686         struct pfs_node *dir;
1687         struct pfs_node *sys;
1688
1689         root = pi->pi_root;
1690
1691         /* /proc/... */
1692         pfs_create_file(root, "cmdline", &linprocfs_docmdline,
1693             NULL, NULL, NULL, PFS_RD);
1694         pfs_create_file(root, "cpuinfo", &linprocfs_docpuinfo,
1695             NULL, NULL, NULL, PFS_RD);
1696         pfs_create_file(root, "devices", &linprocfs_dodevices,
1697             NULL, NULL, NULL, PFS_RD);
1698         pfs_create_file(root, "filesystems", &linprocfs_dofilesystems,
1699             NULL, NULL, NULL, PFS_RD);
1700         pfs_create_file(root, "loadavg", &linprocfs_doloadavg,
1701             NULL, NULL, NULL, PFS_RD);
1702         pfs_create_file(root, "meminfo", &linprocfs_domeminfo,
1703             NULL, NULL, NULL, PFS_RD);
1704 #if 0
1705         pfs_create_file(root, "modules", &linprocfs_domodules,
1706             NULL, NULL, NULL, PFS_RD);
1707 #endif
1708         pfs_create_file(root, "mounts", &linprocfs_domtab,
1709             NULL, NULL, NULL, PFS_RD);
1710         pfs_create_file(root, "mtab", &linprocfs_domtab,
1711             NULL, NULL, NULL, PFS_RD);
1712         pfs_create_file(root, "partitions", &linprocfs_dopartitions,
1713             NULL, NULL, NULL, PFS_RD);
1714         pfs_create_link(root, "self", &procfs_docurproc,
1715             NULL, NULL, NULL, 0);
1716         pfs_create_file(root, "stat", &linprocfs_dostat,
1717             NULL, NULL, NULL, PFS_RD);
1718         pfs_create_file(root, "swaps", &linprocfs_doswaps,
1719             NULL, NULL, NULL, PFS_RD);
1720         pfs_create_file(root, "uptime", &linprocfs_douptime,
1721             NULL, NULL, NULL, PFS_RD);
1722         pfs_create_file(root, "version", &linprocfs_doversion,
1723             NULL, NULL, NULL, PFS_RD);
1724
1725         /* /proc/net/... */
1726         dir = pfs_create_dir(root, "net", NULL, NULL, NULL, 0);
1727         pfs_create_file(dir, "dev", &linprocfs_donetdev,
1728             NULL, NULL, NULL, PFS_RD);
1729
1730         /* /proc/<pid>/... */
1731         dir = pfs_create_dir(root, "pid", NULL, NULL, NULL, PFS_PROCDEP);
1732         pfs_create_file(dir, "cmdline", &linprocfs_doproccmdline,
1733             NULL, NULL, NULL, PFS_RD);
1734         pfs_create_link(dir, "cwd", &linprocfs_doproccwd,
1735             NULL, NULL, NULL, 0);
1736         pfs_create_file(dir, "environ", &linprocfs_doprocenviron,
1737             NULL, &procfs_candebug, NULL, PFS_RD);
1738         pfs_create_link(dir, "exe", &procfs_doprocfile,
1739             NULL, &procfs_notsystem, NULL, 0);
1740         pfs_create_file(dir, "maps", &linprocfs_doprocmaps,
1741             NULL, NULL, NULL, PFS_RD);
1742         pfs_create_file(dir, "mem", &procfs_doprocmem,
1743             procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR | PFS_RAW);
1744         pfs_create_file(dir, "mounts", &linprocfs_domtab,
1745             NULL, NULL, NULL, PFS_RD);
1746         pfs_create_link(dir, "root", &linprocfs_doprocroot,
1747             NULL, NULL, NULL, 0);
1748         pfs_create_file(dir, "stat", &linprocfs_doprocstat,
1749             NULL, NULL, NULL, PFS_RD);
1750         pfs_create_file(dir, "statm", &linprocfs_doprocstatm,
1751             NULL, NULL, NULL, PFS_RD);
1752         pfs_create_file(dir, "status", &linprocfs_doprocstatus,
1753             NULL, NULL, NULL, PFS_RD);
1754         pfs_create_link(dir, "fd", &linprocfs_dofdescfs,
1755             NULL, NULL, NULL, 0);
1756         pfs_create_file(dir, "auxv", &linprocfs_doauxv,
1757             NULL, &procfs_candebug, NULL, PFS_RD|PFS_RAWRD);
1758         pfs_create_file(dir, "limits", &linprocfs_doproclimits,
1759             NULL, NULL, NULL, PFS_RD);
1760
1761         /* /proc/scsi/... */
1762         dir = pfs_create_dir(root, "scsi", NULL, NULL, NULL, 0);
1763         pfs_create_file(dir, "device_info", &linprocfs_doscsidevinfo,
1764             NULL, NULL, NULL, PFS_RD);
1765         pfs_create_file(dir, "scsi", &linprocfs_doscsiscsi,
1766             NULL, NULL, NULL, PFS_RD);
1767
1768         /* /proc/sys/... */
1769         sys = pfs_create_dir(root, "sys", NULL, NULL, NULL, 0);
1770         /* /proc/sys/kernel/... */
1771         dir = pfs_create_dir(sys, "kernel", NULL, NULL, NULL, 0);
1772         pfs_create_file(dir, "osrelease", &linprocfs_doosrelease,
1773             NULL, NULL, NULL, PFS_RD);
1774         pfs_create_file(dir, "ostype", &linprocfs_doostype,
1775             NULL, NULL, NULL, PFS_RD);
1776         pfs_create_file(dir, "version", &linprocfs_doosbuild,
1777             NULL, NULL, NULL, PFS_RD);
1778         pfs_create_file(dir, "msgmni", &linprocfs_domsgmni,
1779             NULL, NULL, NULL, PFS_RD);
1780         pfs_create_file(dir, "pid_max", &linprocfs_dopid_max,
1781             NULL, NULL, NULL, PFS_RD);
1782         pfs_create_file(dir, "sem", &linprocfs_dosem,
1783             NULL, NULL, NULL, PFS_RD);
1784
1785         /* /proc/sys/kernel/random/... */
1786         dir = pfs_create_dir(dir, "random", NULL, NULL, NULL, 0);
1787         pfs_create_file(dir, "uuid", &linprocfs_douuid,
1788             NULL, NULL, NULL, PFS_RD);
1789
1790         /* /proc/sys/vm/.... */
1791         dir = pfs_create_dir(sys, "vm", NULL, NULL, NULL, 0);
1792         pfs_create_file(dir, "min_free_kbytes", &linprocfs_dominfree,
1793             NULL, NULL, NULL, PFS_RD);
1794
1795         return (0);
1796 }
1797
1798 /*
1799  * Destructor
1800  */
1801 static int
1802 linprocfs_uninit(PFS_INIT_ARGS)
1803 {
1804
1805         /* nothing to do, pseudofs will GC */
1806         return (0);
1807 }
1808
1809 PSEUDOFS(linprocfs, 1, VFCF_JAIL);
1810 #if defined(__aarch64__) || defined(__amd64__)
1811 MODULE_DEPEND(linprocfs, linux_common, 1, 1, 1);
1812 #else
1813 MODULE_DEPEND(linprocfs, linux, 1, 1, 1);
1814 #endif
1815 MODULE_DEPEND(linprocfs, procfs, 1, 1, 1);
1816 MODULE_DEPEND(linprocfs, sysvmsg, 1, 1, 1);
1817 MODULE_DEPEND(linprocfs, sysvsem, 1, 1, 1);