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FreeBSD/Linux Kernel Cross Reference
sys/compat/linprocfs/linprocfs.c
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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/shm.h> 70 #include <sys/smp.h> 71 #include <sys/socket.h> 72 #include <sys/syscallsubr.h> 73 #include <sys/sysctl.h> 74 #include <sys/sysent.h> 75 #include <sys/systm.h> 76 #include <sys/time.h> 77 #include <sys/tty.h> 78 #include <sys/user.h> 79 #include <sys/uuid.h> 80 #include <sys/vmmeter.h> 81 #include <sys/vnode.h> 82 #include <sys/bus.h> 83 84 #include <net/if.h> 85 #include <net/if_var.h> 86 #include <net/if_types.h> 87 88 #include <vm/vm.h> 89 #include <vm/vm_extern.h> 90 #include <vm/pmap.h> 91 #include <vm/vm_map.h> 92 #include <vm/vm_param.h> 93 #include <vm/vm_object.h> 94 #include <vm/swap_pager.h> 95 96 #include <machine/clock.h> 97 98 #include <geom/geom.h> 99 #include <geom/geom_int.h> 100 101 #if defined(__i386__) || defined(__amd64__) 102 #include <machine/cputypes.h> 103 #include <machine/md_var.h> 104 #endif /* __i386__ || __amd64__ */ 105 106 #include <compat/linux/linux.h> 107 #include <compat/linux/linux_mib.h> 108 #include <compat/linux/linux_misc.h> 109 #include <compat/linux/linux_util.h> 110 #include <fs/pseudofs/pseudofs.h> 111 #include <fs/procfs/procfs.h> 112 113 /* 114 * Various conversion macros 115 */ 116 #define T2J(x) ((long)(((x) * 100ULL) / (stathz ? stathz : hz))) /* ticks to jiffies */ 117 #define T2CS(x) ((unsigned long)(((x) * 100ULL) / (stathz ? stathz : hz))) /* ticks to centiseconds */ 118 #define T2S(x) ((x) / (stathz ? stathz : hz)) /* ticks to seconds */ 119 #define B2K(x) ((x) >> 10) /* bytes to kbytes */ 120 #define B2P(x) ((x) >> PAGE_SHIFT) /* bytes to pages */ 121 #define P2B(x) ((x) << PAGE_SHIFT) /* pages to bytes */ 122 #define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* pages to kbytes */ 123 #define TV2J(x) ((x)->tv_sec * 100UL + (x)->tv_usec / 10000) 124 125 /** 126 * @brief Mapping of ki_stat in struct kinfo_proc to the linux state 127 * 128 * The linux procfs state field displays one of the characters RSDZTW to 129 * denote running, sleeping in an interruptible wait, waiting in an 130 * uninterruptible disk sleep, a zombie process, process is being traced 131 * or stopped, or process is paging respectively. 132 * 133 * Our struct kinfo_proc contains the variable ki_stat which contains a 134 * value out of SIDL, SRUN, SSLEEP, SSTOP, SZOMB, SWAIT and SLOCK. 135 * 136 * This character array is used with ki_stati-1 as an index and tries to 137 * map our states to suitable linux states. 138 */ 139 static char linux_state[] = "RRSTZDD"; 140 141 /* 142 * Filler function for proc/meminfo 143 */ 144 static int 145 linprocfs_domeminfo(PFS_FILL_ARGS) 146 { 147 unsigned long memtotal; /* total memory in bytes */ 148 unsigned long memfree; /* free memory in bytes */ 149 unsigned long cached; /* page cache */ 150 unsigned long buffers; /* buffer cache */ 151 unsigned long long swaptotal; /* total swap space in bytes */ 152 unsigned long long swapused; /* used swap space in bytes */ 153 unsigned long long swapfree; /* free swap space in bytes */ 154 size_t sz; 155 int error, i, j; 156 157 memtotal = physmem * PAGE_SIZE; 158 memfree = (unsigned long)vm_free_count() * PAGE_SIZE; 159 swap_pager_status(&i, &j); 160 swaptotal = (unsigned long long)i * PAGE_SIZE; 161 swapused = (unsigned long long)j * PAGE_SIZE; 162 swapfree = swaptotal - swapused; 163 164 /* 165 * This value may exclude wired pages, but we have no good way of 166 * accounting for that. 167 */ 168 cached = 169 (vm_active_count() + vm_inactive_count() + vm_laundry_count()) * 170 PAGE_SIZE; 171 172 sz = sizeof(buffers); 173 error = kernel_sysctlbyname(curthread, "vfs.bufspace", &buffers, &sz, 174 NULL, 0, 0, 0); 175 if (error != 0) 176 buffers = 0; 177 178 sbuf_printf(sb, 179 "MemTotal: %9lu kB\n" 180 "MemFree: %9lu kB\n" 181 "Buffers: %9lu kB\n" 182 "Cached: %9lu kB\n" 183 "SwapTotal:%9llu kB\n" 184 "SwapFree: %9llu kB\n", 185 B2K(memtotal), B2K(memfree), B2K(buffers), 186 B2K(cached), B2K(swaptotal), B2K(swapfree)); 187 188 return (0); 189 } 190 191 #if defined(__i386__) || defined(__amd64__) 192 /* 193 * Filler function for proc/cpuinfo (i386 & amd64 version) 194 */ 195 static int 196 linprocfs_docpuinfo(PFS_FILL_ARGS) 197 { 198 int hw_model[2]; 199 char model[128]; 200 uint64_t freq; 201 size_t size; 202 u_int cache_size[4]; 203 int fqmhz, fqkhz; 204 int i, j; 205 206 /* 207 * We default the flags to include all non-conflicting flags, 208 * and the Intel versions of conflicting flags. 209 */ 210 static char *cpu_feature_names[] = { 211 /* 0 */ "fpu", "vme", "de", "pse", 212 /* 4 */ "tsc", "msr", "pae", "mce", 213 /* 8 */ "cx8", "apic", "", "sep", 214 /* 12 */ "mtrr", "pge", "mca", "cmov", 215 /* 16 */ "pat", "pse36", "pn", "clflush", 216 /* 20 */ "", "dts", "acpi", "mmx", 217 /* 24 */ "fxsr", "sse", "sse2", "ss", 218 /* 28 */ "ht", "tm", "ia64", "pbe" 219 }; 220 221 static char *amd_feature_names[] = { 222 /* 0 */ "", "", "", "", 223 /* 4 */ "", "", "", "", 224 /* 8 */ "", "", "", "syscall", 225 /* 12 */ "", "", "", "", 226 /* 16 */ "", "", "", "mp", 227 /* 20 */ "nx", "", "mmxext", "", 228 /* 24 */ "", "fxsr_opt", "pdpe1gb", "rdtscp", 229 /* 28 */ "", "lm", "3dnowext", "3dnow" 230 }; 231 232 static char *cpu_feature2_names[] = { 233 /* 0 */ "pni", "pclmulqdq", "dtes64", "monitor", 234 /* 4 */ "ds_cpl", "vmx", "smx", "est", 235 /* 8 */ "tm2", "ssse3", "cid", "sdbg", 236 /* 12 */ "fma", "cx16", "xtpr", "pdcm", 237 /* 16 */ "", "pcid", "dca", "sse4_1", 238 /* 20 */ "sse4_2", "x2apic", "movbe", "popcnt", 239 /* 24 */ "tsc_deadline_timer", "aes", "xsave", "", 240 /* 28 */ "avx", "f16c", "rdrand", "hypervisor" 241 }; 242 243 static char *amd_feature2_names[] = { 244 /* 0 */ "lahf_lm", "cmp_legacy", "svm", "extapic", 245 /* 4 */ "cr8_legacy", "abm", "sse4a", "misalignsse", 246 /* 8 */ "3dnowprefetch", "osvw", "ibs", "xop", 247 /* 12 */ "skinit", "wdt", "", "lwp", 248 /* 16 */ "fma4", "tce", "", "nodeid_msr", 249 /* 20 */ "", "tbm", "topoext", "perfctr_core", 250 /* 24 */ "perfctr_nb", "", "bpext", "ptsc", 251 /* 28 */ "perfctr_llc", "mwaitx", "", "" 252 }; 253 254 static char *cpu_stdext_feature_names[] = { 255 /* 0 */ "fsgsbase", "tsc_adjust", "", "bmi1", 256 /* 4 */ "hle", "avx2", "", "smep", 257 /* 8 */ "bmi2", "erms", "invpcid", "rtm", 258 /* 12 */ "cqm", "", "mpx", "rdt_a", 259 /* 16 */ "avx512f", "avx512dq", "rdseed", "adx", 260 /* 20 */ "smap", "avx512ifma", "", "clflushopt", 261 /* 24 */ "clwb", "intel_pt", "avx512pf", "avx512er", 262 /* 28 */ "avx512cd", "sha_ni", "avx512bw", "avx512vl" 263 }; 264 265 static char *power_flags[] = { 266 "ts", "fid", "vid", 267 "ttp", "tm", "stc", 268 "100mhzsteps", "hwpstate", "", 269 "cpb", "eff_freq_ro", "proc_feedback", 270 "acc_power", 271 }; 272 273 hw_model[0] = CTL_HW; 274 hw_model[1] = HW_MODEL; 275 model[0] = '\0'; 276 size = sizeof(model); 277 if (kernel_sysctl(td, hw_model, 2, &model, &size, 0, 0, 0, 0) != 0) 278 strcpy(model, "unknown"); 279 #ifdef __i386__ 280 switch (cpu_vendor_id) { 281 case CPU_VENDOR_AMD: 282 if (cpu_class < CPUCLASS_686) 283 cpu_feature_names[16] = "fcmov"; 284 break; 285 case CPU_VENDOR_CYRIX: 286 cpu_feature_names[24] = "cxmmx"; 287 break; 288 } 289 #endif 290 if (cpu_exthigh >= 0x80000006) 291 do_cpuid(0x80000006, cache_size); 292 else 293 memset(cache_size, 0, sizeof(cache_size)); 294 for (i = 0; i < mp_ncpus; ++i) { 295 fqmhz = 0; 296 fqkhz = 0; 297 freq = atomic_load_acq_64(&tsc_freq); 298 if (freq != 0) { 299 fqmhz = (freq + 4999) / 1000000; 300 fqkhz = ((freq + 4999) / 10000) % 100; 301 } 302 sbuf_printf(sb, 303 "processor\t: %d\n" 304 "vendor_id\t: %.20s\n" 305 "cpu family\t: %u\n" 306 "model\t\t: %u\n" 307 "model name\t: %s\n" 308 "stepping\t: %u\n" 309 "cpu MHz\t\t: %d.%02d\n" 310 "cache size\t: %d KB\n" 311 "physical id\t: %d\n" 312 "siblings\t: %d\n" 313 "core id\t\t: %d\n" 314 "cpu cores\t: %d\n" 315 "apicid\t\t: %d\n" 316 "initial apicid\t: %d\n" 317 "fpu\t\t: %s\n" 318 "fpu_exception\t: %s\n" 319 "cpuid level\t: %d\n" 320 "wp\t\t: %s\n", 321 i, cpu_vendor, CPUID_TO_FAMILY(cpu_id), 322 CPUID_TO_MODEL(cpu_id), model, cpu_id & CPUID_STEPPING, 323 fqmhz, fqkhz, 324 (cache_size[2] >> 16), 0, mp_ncpus, i, mp_ncpus, 325 i, i, /*cpu_id & CPUID_LOCAL_APIC_ID ??*/ 326 (cpu_feature & CPUID_FPU) ? "yes" : "no", "yes", 327 CPUID_TO_FAMILY(cpu_id), "yes"); 328 sbuf_cat(sb, "flags\t\t:"); 329 for (j = 0; j < nitems(cpu_feature_names); j++) 330 if (cpu_feature & (1 << j) && 331 cpu_feature_names[j][0] != '\0') 332 sbuf_printf(sb, " %s", cpu_feature_names[j]); 333 for (j = 0; j < nitems(amd_feature_names); j++) 334 if (amd_feature & (1 << j) && 335 amd_feature_names[j][0] != '\0') 336 sbuf_printf(sb, " %s", amd_feature_names[j]); 337 for (j = 0; j < nitems(cpu_feature2_names); j++) 338 if (cpu_feature2 & (1 << j) && 339 cpu_feature2_names[j][0] != '\0') 340 sbuf_printf(sb, " %s", cpu_feature2_names[j]); 341 for (j = 0; j < nitems(amd_feature2_names); j++) 342 if (amd_feature2 & (1 << j) && 343 amd_feature2_names[j][0] != '\0') 344 sbuf_printf(sb, " %s", amd_feature2_names[j]); 345 for (j = 0; j < nitems(cpu_stdext_feature_names); j++) 346 if (cpu_stdext_feature & (1 << j) && 347 cpu_stdext_feature_names[j][0] != '\0') 348 sbuf_printf(sb, " %s", 349 cpu_stdext_feature_names[j]); 350 sbuf_cat(sb, "\n"); 351 sbuf_printf(sb, 352 "bugs\t\t: %s\n" 353 "bogomips\t: %d.%02d\n" 354 "clflush size\t: %d\n" 355 "cache_alignment\t: %d\n" 356 "address sizes\t: %d bits physical, %d bits virtual\n", 357 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 358 (has_f00f_bug) ? "Intel F00F" : "", 359 #else 360 "", 361 #endif 362 fqmhz * 2, fqkhz, 363 cpu_clflush_line_size, cpu_clflush_line_size, 364 cpu_maxphyaddr, 365 (cpu_maxphyaddr > 32) ? 48 : 0); 366 sbuf_cat(sb, "power management: "); 367 for (j = 0; j < nitems(power_flags); j++) 368 if (amd_pminfo & (1 << j)) 369 sbuf_printf(sb, " %s", power_flags[j]); 370 sbuf_cat(sb, "\n\n"); 371 372 /* XXX per-cpu vendor / class / model / id? */ 373 } 374 sbuf_cat(sb, "\n"); 375 376 return (0); 377 } 378 #else 379 /* ARM64TODO: implement non-stubbed linprocfs_docpuinfo */ 380 static int 381 linprocfs_docpuinfo(PFS_FILL_ARGS) 382 { 383 int i; 384 385 for (i = 0; i < mp_ncpus; ++i) { 386 sbuf_printf(sb, 387 "processor\t: %d\n" 388 "BogoMIPS\t: %d.%02d\n", 389 i, 0, 0); 390 sbuf_cat(sb, "Features\t: "); 391 sbuf_cat(sb, "\n"); 392 sbuf_printf(sb, 393 "CPU implementer\t: \n" 394 "CPU architecture: \n" 395 "CPU variant\t: 0x%x\n" 396 "CPU part\t: 0x%x\n" 397 "CPU revision\t: %d\n", 398 0, 0, 0); 399 sbuf_cat(sb, "\n"); 400 } 401 402 return (0); 403 } 404 #endif /* __i386__ || __amd64__ */ 405 406 static const char *path_slash_sys = "/sys"; 407 static const char *fstype_sysfs = "sysfs"; 408 409 static int 410 _mtab_helper(const struct pfs_node *pn, const struct statfs *sp, 411 const char **mntfrom, const char **mntto, const char **fstype) 412 { 413 /* determine device name */ 414 *mntfrom = sp->f_mntfromname; 415 416 /* determine mount point */ 417 *mntto = sp->f_mntonname; 418 419 /* determine fs type */ 420 *fstype = sp->f_fstypename; 421 if (strcmp(*fstype, pn->pn_info->pi_name) == 0) 422 *mntfrom = *fstype = "proc"; 423 else if (strcmp(*fstype, "procfs") == 0) 424 return (ECANCELED); 425 426 if (strcmp(*fstype, "autofs") == 0) { 427 /* 428 * FreeBSD uses eg "map -hosts", whereas Linux 429 * expects just "-hosts". 430 */ 431 if (strncmp(*mntfrom, "map ", 4) == 0) 432 *mntfrom += 4; 433 } 434 435 if (strcmp(*fstype, "linsysfs") == 0) { 436 *mntfrom = path_slash_sys; 437 *fstype = fstype_sysfs; 438 } else { 439 /* For Linux msdosfs is called vfat */ 440 if (strcmp(*fstype, "msdosfs") == 0) 441 *fstype = "vfat"; 442 } 443 return (0); 444 } 445 446 static void 447 _sbuf_mntoptions_helper(struct sbuf *sb, uint64_t f_flags) 448 { 449 sbuf_cat(sb, (f_flags & MNT_RDONLY) ? "ro" : "rw"); 450 #define ADD_OPTION(opt, name) \ 451 if (f_flags & (opt)) sbuf_cat(sb, "," name); 452 ADD_OPTION(MNT_SYNCHRONOUS, "sync"); 453 ADD_OPTION(MNT_NOEXEC, "noexec"); 454 ADD_OPTION(MNT_NOSUID, "nosuid"); 455 ADD_OPTION(MNT_UNION, "union"); 456 ADD_OPTION(MNT_ASYNC, "async"); 457 ADD_OPTION(MNT_SUIDDIR, "suiddir"); 458 ADD_OPTION(MNT_NOSYMFOLLOW, "nosymfollow"); 459 ADD_OPTION(MNT_NOATIME, "noatime"); 460 #undef ADD_OPTION 461 } 462 463 /* 464 * Filler function for proc/mtab and proc/<pid>/mounts. 465 * 466 * /proc/mtab doesn't exist in Linux' procfs, but is included here so 467 * users can symlink /compat/linux/etc/mtab to /proc/mtab 468 */ 469 static int 470 linprocfs_domtab(PFS_FILL_ARGS) 471 { 472 struct nameidata nd; 473 const char *lep, *mntto, *mntfrom, *fstype; 474 char *dlep, *flep; 475 size_t lep_len; 476 int error; 477 struct statfs *buf, *sp; 478 size_t count; 479 480 /* resolve symlinks etc. in the emulation tree prefix */ 481 /* 482 * Ideally, this would use the current chroot rather than some 483 * hardcoded path. 484 */ 485 NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, linux_emul_path, td); 486 flep = NULL; 487 error = namei(&nd); 488 lep = linux_emul_path; 489 if (error == 0) { 490 if (vn_fullpath(nd.ni_vp, &dlep, &flep) == 0) 491 lep = dlep; 492 vrele(nd.ni_vp); 493 } 494 lep_len = strlen(lep); 495 496 buf = NULL; 497 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count, 498 UIO_SYSSPACE, MNT_WAIT); 499 if (error != 0) { 500 free(buf, M_TEMP); 501 free(flep, M_TEMP); 502 return (error); 503 } 504 505 for (sp = buf; count > 0; sp++, count--) { 506 error = _mtab_helper(pn, sp, &mntfrom, &mntto, &fstype); 507 if (error != 0) { 508 MPASS(error == ECANCELED); 509 continue; 510 } 511 512 /* determine mount point */ 513 if (strncmp(mntto, lep, lep_len) == 0 && mntto[lep_len] == '/') 514 mntto += lep_len; 515 516 sbuf_printf(sb, "%s %s %s ", mntfrom, mntto, fstype); 517 _sbuf_mntoptions_helper(sb, sp->f_flags); 518 /* a real Linux mtab will also show NFS options */ 519 sbuf_printf(sb, " 0 0\n"); 520 } 521 522 free(buf, M_TEMP); 523 free(flep, M_TEMP); 524 return (error); 525 } 526 527 static int 528 linprocfs_doprocmountinfo(PFS_FILL_ARGS) 529 { 530 struct nameidata nd; 531 const char *mntfrom, *mntto, *fstype; 532 const char *lep; 533 char *dlep, *flep; 534 struct statfs *buf, *sp; 535 size_t count, lep_len; 536 int error; 537 538 /* 539 * Ideally, this would use the current chroot rather than some 540 * hardcoded path. 541 */ 542 NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, linux_emul_path, td); 543 flep = NULL; 544 error = namei(&nd); 545 lep = linux_emul_path; 546 if (error == 0) { 547 if (vn_fullpath(nd.ni_vp, &dlep, &flep) == 0) 548 lep = dlep; 549 vrele(nd.ni_vp); 550 } 551 lep_len = strlen(lep); 552 553 buf = NULL; 554 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count, 555 UIO_SYSSPACE, MNT_WAIT); 556 if (error != 0) 557 goto out; 558 559 for (sp = buf; count > 0; sp++, count--) { 560 error = _mtab_helper(pn, sp, &mntfrom, &mntto, &fstype); 561 if (error != 0) { 562 MPASS(error == ECANCELED); 563 continue; 564 } 565 566 if (strncmp(mntto, lep, lep_len) == 0 && mntto[lep_len] == '/') 567 mntto += lep_len; 568 #if 0 569 /* 570 * If the prefix is a chroot, and this mountpoint is not under 571 * the prefix, we should skip it. Leave it for now for 572 * consistency with procmtab above. 573 */ 574 else 575 continue; 576 #endif 577 578 /* 579 * (1) mount id 580 * 581 * (2) parent mount id -- we don't have this cheaply, so 582 * provide a dummy value 583 * 584 * (3) major:minor -- ditto 585 * 586 * (4) root filesystem mount -- probably a namespaces thing 587 * 588 * (5) mountto path 589 */ 590 sbuf_printf(sb, "%u 0 0:0 / %s ", 591 sp->f_fsid.val[0] ^ sp->f_fsid.val[1], mntto); 592 /* (6) mount options */ 593 _sbuf_mntoptions_helper(sb, sp->f_flags); 594 /* 595 * (7) zero or more optional fields -- again, namespace related 596 * 597 * (8) End of variable length fields separator ("-") 598 * 599 * (9) fstype 600 * 601 * (10) mount from 602 * 603 * (11) "superblock" options -- like (6), but different 604 * semantics in Linux 605 */ 606 sbuf_printf(sb, " - %s %s %s\n", fstype, mntfrom, 607 (sp->f_flags & MNT_RDONLY) ? "ro" : "rw"); 608 } 609 610 error = 0; 611 out: 612 free(buf, M_TEMP); 613 free(flep, M_TEMP); 614 return (error); 615 } 616 617 /* 618 * Filler function for proc/partitions 619 */ 620 static int 621 linprocfs_dopartitions(PFS_FILL_ARGS) 622 { 623 struct g_class *cp; 624 struct g_geom *gp; 625 struct g_provider *pp; 626 int major, minor; 627 628 g_topology_lock(); 629 sbuf_printf(sb, "major minor #blocks name rio rmerge rsect " 630 "ruse wio wmerge wsect wuse running use aveq\n"); 631 632 LIST_FOREACH(cp, &g_classes, class) { 633 if (strcmp(cp->name, "DISK") == 0 || 634 strcmp(cp->name, "PART") == 0) 635 LIST_FOREACH(gp, &cp->geom, geom) { 636 LIST_FOREACH(pp, &gp->provider, provider) { 637 if (linux_driver_get_major_minor( 638 pp->name, &major, &minor) != 0) { 639 major = 0; 640 minor = 0; 641 } 642 sbuf_printf(sb, "%d %d %lld %s " 643 "%d %d %d %d %d " 644 "%d %d %d %d %d %d\n", 645 major, minor, 646 (long long)pp->mediasize, pp->name, 647 0, 0, 0, 0, 0, 648 0, 0, 0, 0, 0, 0); 649 } 650 } 651 } 652 g_topology_unlock(); 653 654 return (0); 655 } 656 657 /* 658 * Filler function for proc/stat 659 * 660 * Output depends on kernel version: 661 * 662 * v2.5.40 <= 663 * user nice system idle 664 * v2.5.41 665 * user nice system idle iowait 666 * v2.6.11 667 * user nice system idle iowait irq softirq steal 668 * v2.6.24 669 * user nice system idle iowait irq softirq steal guest 670 * v2.6.33 >= 671 * user nice system idle iowait irq softirq steal guest guest_nice 672 */ 673 static int 674 linprocfs_dostat(PFS_FILL_ARGS) 675 { 676 struct pcpu *pcpu; 677 long cp_time[CPUSTATES]; 678 long *cp; 679 struct timeval boottime; 680 int i; 681 char *zero_pad; 682 bool has_intr = true; 683 684 if (linux_kernver(td) >= LINUX_KERNVER(2,6,33)) { 685 zero_pad = " 0 0 0 0\n"; 686 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,24)) { 687 zero_pad = " 0 0 0\n"; 688 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,11)) { 689 zero_pad = " 0 0\n"; 690 } else if (linux_kernver(td) >= LINUX_KERNVER(2,5,41)) { 691 has_intr = false; 692 zero_pad = " 0\n"; 693 } else { 694 has_intr = false; 695 zero_pad = "\n"; 696 } 697 698 read_cpu_time(cp_time); 699 getboottime(&boottime); 700 /* Parameters common to all versions */ 701 sbuf_printf(sb, "cpu %lu %lu %lu %lu", 702 T2J(cp_time[CP_USER]), 703 T2J(cp_time[CP_NICE]), 704 T2J(cp_time[CP_SYS]), 705 T2J(cp_time[CP_IDLE])); 706 707 /* Print interrupt stats if available */ 708 if (has_intr) { 709 sbuf_printf(sb, " 0 %lu", T2J(cp_time[CP_INTR])); 710 } 711 712 /* Pad out remaining fields depending on version */ 713 sbuf_printf(sb, "%s", zero_pad); 714 715 CPU_FOREACH(i) { 716 pcpu = pcpu_find(i); 717 cp = pcpu->pc_cp_time; 718 sbuf_printf(sb, "cpu%d %lu %lu %lu %lu", i, 719 T2J(cp[CP_USER]), 720 T2J(cp[CP_NICE]), 721 T2J(cp[CP_SYS]), 722 T2J(cp[CP_IDLE])); 723 724 if (has_intr) { 725 sbuf_printf(sb, " 0 %lu", T2J(cp[CP_INTR])); 726 } 727 728 sbuf_printf(sb, "%s", zero_pad); 729 } 730 sbuf_printf(sb, 731 "disk 0 0 0 0\n" 732 "page %ju %ju\n" 733 "swap %ju %ju\n" 734 "intr %ju\n" 735 "ctxt %ju\n" 736 "btime %lld\n", 737 (uintmax_t)VM_CNT_FETCH(v_vnodepgsin), 738 (uintmax_t)VM_CNT_FETCH(v_vnodepgsout), 739 (uintmax_t)VM_CNT_FETCH(v_swappgsin), 740 (uintmax_t)VM_CNT_FETCH(v_swappgsout), 741 (uintmax_t)VM_CNT_FETCH(v_intr), 742 (uintmax_t)VM_CNT_FETCH(v_swtch), 743 (long long)boottime.tv_sec); 744 return (0); 745 } 746 747 static int 748 linprocfs_doswaps(PFS_FILL_ARGS) 749 { 750 struct xswdev xsw; 751 uintmax_t total, used; 752 int n; 753 char devname[SPECNAMELEN + 1]; 754 755 sbuf_printf(sb, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n"); 756 for (n = 0; ; n++) { 757 if (swap_dev_info(n, &xsw, devname, sizeof(devname)) != 0) 758 break; 759 total = (uintmax_t)xsw.xsw_nblks * PAGE_SIZE / 1024; 760 used = (uintmax_t)xsw.xsw_used * PAGE_SIZE / 1024; 761 762 /* 763 * The space and not tab after the device name is on 764 * purpose. Linux does so. 765 */ 766 sbuf_printf(sb, "/dev/%-34s unknown\t\t%jd\t%jd\t-1\n", 767 devname, total, used); 768 } 769 return (0); 770 } 771 772 /* 773 * Filler function for proc/uptime 774 */ 775 static int 776 linprocfs_douptime(PFS_FILL_ARGS) 777 { 778 long cp_time[CPUSTATES]; 779 struct timeval tv; 780 781 getmicrouptime(&tv); 782 read_cpu_time(cp_time); 783 sbuf_printf(sb, "%lld.%02ld %ld.%02lu\n", 784 (long long)tv.tv_sec, tv.tv_usec / 10000, 785 T2S(cp_time[CP_IDLE] / mp_ncpus), 786 T2CS(cp_time[CP_IDLE] / mp_ncpus) % 100); 787 return (0); 788 } 789 790 /* 791 * Get OS build date 792 */ 793 static void 794 linprocfs_osbuild(struct thread *td, struct sbuf *sb) 795 { 796 #if 0 797 char osbuild[256]; 798 char *cp1, *cp2; 799 800 strncpy(osbuild, version, 256); 801 osbuild[255] = '\0'; 802 cp1 = strstr(osbuild, "\n"); 803 cp2 = strstr(osbuild, ":"); 804 if (cp1 && cp2) { 805 *cp1 = *cp2 = '\0'; 806 cp1 = strstr(osbuild, "#"); 807 } else 808 cp1 = NULL; 809 if (cp1) 810 sbuf_printf(sb, "%s%s", cp1, cp2 + 1); 811 else 812 #endif 813 sbuf_cat(sb, "#4 Sun Dec 18 04:30:00 CET 1977"); 814 } 815 816 /* 817 * Get OS builder 818 */ 819 static void 820 linprocfs_osbuilder(struct thread *td, struct sbuf *sb) 821 { 822 #if 0 823 char builder[256]; 824 char *cp; 825 826 cp = strstr(version, "\n "); 827 if (cp) { 828 strncpy(builder, cp + 5, 256); 829 builder[255] = '\0'; 830 cp = strstr(builder, ":"); 831 if (cp) 832 *cp = '\0'; 833 } 834 if (cp) 835 sbuf_cat(sb, builder); 836 else 837 #endif 838 sbuf_cat(sb, "des@freebsd.org"); 839 } 840 841 /* 842 * Filler function for proc/version 843 */ 844 static int 845 linprocfs_doversion(PFS_FILL_ARGS) 846 { 847 char osname[LINUX_MAX_UTSNAME]; 848 char osrelease[LINUX_MAX_UTSNAME]; 849 850 linux_get_osname(td, osname); 851 linux_get_osrelease(td, osrelease); 852 sbuf_printf(sb, "%s version %s (", osname, osrelease); 853 linprocfs_osbuilder(td, sb); 854 sbuf_cat(sb, ") (gcc version " __VERSION__ ") "); 855 linprocfs_osbuild(td, sb); 856 sbuf_cat(sb, "\n"); 857 858 return (0); 859 } 860 861 /* 862 * Filler function for proc/loadavg 863 */ 864 static int 865 linprocfs_doloadavg(PFS_FILL_ARGS) 866 { 867 868 sbuf_printf(sb, 869 "%d.%02d %d.%02d %d.%02d %d/%d %d\n", 870 (int)(averunnable.ldavg[0] / averunnable.fscale), 871 (int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100), 872 (int)(averunnable.ldavg[1] / averunnable.fscale), 873 (int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100), 874 (int)(averunnable.ldavg[2] / averunnable.fscale), 875 (int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100), 876 1, /* number of running tasks */ 877 nprocs, /* number of tasks */ 878 lastpid /* the last pid */ 879 ); 880 return (0); 881 } 882 883 static int 884 linprocfs_get_tty_nr(struct proc *p) 885 { 886 struct session *sp; 887 const char *ttyname; 888 int error, major, minor, nr; 889 890 PROC_LOCK_ASSERT(p, MA_OWNED); 891 sx_assert(&proctree_lock, SX_LOCKED); 892 893 if ((p->p_flag & P_CONTROLT) == 0) 894 return (-1); 895 896 sp = p->p_pgrp->pg_session; 897 if (sp == NULL) 898 return (-1); 899 900 ttyname = devtoname(sp->s_ttyp->t_dev); 901 error = linux_driver_get_major_minor(ttyname, &major, &minor); 902 if (error != 0) 903 return (-1); 904 905 nr = makedev(major, minor); 906 return (nr); 907 } 908 909 /* 910 * Filler function for proc/pid/stat 911 */ 912 static int 913 linprocfs_doprocstat(PFS_FILL_ARGS) 914 { 915 struct kinfo_proc kp; 916 struct timeval boottime; 917 char state; 918 static int ratelimit = 0; 919 int tty_nr; 920 vm_offset_t startcode, startdata; 921 922 getboottime(&boottime); 923 sx_slock(&proctree_lock); 924 PROC_LOCK(p); 925 fill_kinfo_proc(p, &kp); 926 tty_nr = linprocfs_get_tty_nr(p); 927 sx_sunlock(&proctree_lock); 928 if (p->p_vmspace) { 929 startcode = (vm_offset_t)p->p_vmspace->vm_taddr; 930 startdata = (vm_offset_t)p->p_vmspace->vm_daddr; 931 } else { 932 startcode = 0; 933 startdata = 0; 934 } 935 sbuf_printf(sb, "%d", p->p_pid); 936 #define PS_ADD(name, fmt, arg) sbuf_printf(sb, " " fmt, arg) 937 PS_ADD("comm", "(%s)", p->p_comm); 938 if (kp.ki_stat > sizeof(linux_state)) { 939 state = 'R'; 940 941 if (ratelimit == 0) { 942 printf("linprocfs: don't know how to handle unknown FreeBSD state %d/%zd, mapping to R\n", 943 kp.ki_stat, sizeof(linux_state)); 944 ++ratelimit; 945 } 946 } else 947 state = linux_state[kp.ki_stat - 1]; 948 PS_ADD("state", "%c", state); 949 PS_ADD("ppid", "%d", p->p_pptr ? p->p_pptr->p_pid : 0); 950 PS_ADD("pgrp", "%d", p->p_pgid); 951 PS_ADD("session", "%d", p->p_session->s_sid); 952 PROC_UNLOCK(p); 953 PS_ADD("tty", "%d", tty_nr); 954 PS_ADD("tpgid", "%d", kp.ki_tpgid); 955 PS_ADD("flags", "%u", 0); /* XXX */ 956 PS_ADD("minflt", "%lu", kp.ki_rusage.ru_minflt); 957 PS_ADD("cminflt", "%lu", kp.ki_rusage_ch.ru_minflt); 958 PS_ADD("majflt", "%lu", kp.ki_rusage.ru_majflt); 959 PS_ADD("cmajflt", "%lu", kp.ki_rusage_ch.ru_majflt); 960 PS_ADD("utime", "%ld", TV2J(&kp.ki_rusage.ru_utime)); 961 PS_ADD("stime", "%ld", TV2J(&kp.ki_rusage.ru_stime)); 962 PS_ADD("cutime", "%ld", TV2J(&kp.ki_rusage_ch.ru_utime)); 963 PS_ADD("cstime", "%ld", TV2J(&kp.ki_rusage_ch.ru_stime)); 964 PS_ADD("priority", "%d", kp.ki_pri.pri_user); 965 PS_ADD("nice", "%d", kp.ki_nice); /* 19 (nicest) to -19 */ 966 PS_ADD("", "%d", 0); /* removed field */ 967 PS_ADD("itrealvalue", "%d", 0); /* XXX */ 968 PS_ADD("starttime", "%lu", TV2J(&kp.ki_start) - TV2J(&boottime)); 969 PS_ADD("vsize", "%ju", P2K((uintmax_t)kp.ki_size)); 970 PS_ADD("rss", "%ju", (uintmax_t)kp.ki_rssize); 971 PS_ADD("rlim", "%lu", kp.ki_rusage.ru_maxrss); 972 PS_ADD("startcode", "%ju", (uintmax_t)startcode); 973 PS_ADD("endcode", "%ju", (uintmax_t)startdata); 974 PS_ADD("startstack", "%u", 0); /* XXX */ 975 PS_ADD("kstkesp", "%u", 0); /* XXX */ 976 PS_ADD("kstkeip", "%u", 0); /* XXX */ 977 PS_ADD("signal", "%u", 0); /* XXX */ 978 PS_ADD("blocked", "%u", 0); /* XXX */ 979 PS_ADD("sigignore", "%u", 0); /* XXX */ 980 PS_ADD("sigcatch", "%u", 0); /* XXX */ 981 PS_ADD("wchan", "%u", 0); /* XXX */ 982 PS_ADD("nswap", "%lu", kp.ki_rusage.ru_nswap); 983 PS_ADD("cnswap", "%lu", kp.ki_rusage_ch.ru_nswap); 984 PS_ADD("exitsignal", "%d", 0); /* XXX */ 985 PS_ADD("processor", "%u", kp.ki_lastcpu); 986 PS_ADD("rt_priority", "%u", 0); /* XXX */ /* >= 2.5.19 */ 987 PS_ADD("policy", "%u", kp.ki_pri.pri_class); /* >= 2.5.19 */ 988 #undef PS_ADD 989 sbuf_putc(sb, '\n'); 990 991 return (0); 992 } 993 994 /* 995 * Filler function for proc/pid/statm 996 */ 997 static int 998 linprocfs_doprocstatm(PFS_FILL_ARGS) 999 { 1000 struct kinfo_proc kp; 1001 segsz_t lsize; 1002 1003 sx_slock(&proctree_lock); 1004 PROC_LOCK(p); 1005 fill_kinfo_proc(p, &kp); 1006 PROC_UNLOCK(p); 1007 sx_sunlock(&proctree_lock); 1008 1009 /* 1010 * See comments in linprocfs_doprocstatus() regarding the 1011 * computation of lsize. 1012 */ 1013 /* size resident share trs drs lrs dt */ 1014 sbuf_printf(sb, "%ju ", B2P((uintmax_t)kp.ki_size)); 1015 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_rssize); 1016 sbuf_printf(sb, "%ju ", (uintmax_t)0); /* XXX */ 1017 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_tsize); 1018 sbuf_printf(sb, "%ju ", (uintmax_t)(kp.ki_dsize + kp.ki_ssize)); 1019 lsize = B2P(kp.ki_size) - kp.ki_dsize - 1020 kp.ki_ssize - kp.ki_tsize - 1; 1021 sbuf_printf(sb, "%ju ", (uintmax_t)lsize); 1022 sbuf_printf(sb, "%ju\n", (uintmax_t)0); /* XXX */ 1023 1024 return (0); 1025 } 1026 1027 /* 1028 * Filler function for proc/pid/status 1029 */ 1030 static int 1031 linprocfs_doprocstatus(PFS_FILL_ARGS) 1032 { 1033 struct kinfo_proc kp; 1034 char *state; 1035 segsz_t lsize; 1036 struct thread *td2; 1037 struct sigacts *ps; 1038 l_sigset_t siglist, sigignore, sigcatch; 1039 int i; 1040 1041 sx_slock(&proctree_lock); 1042 PROC_LOCK(p); 1043 td2 = FIRST_THREAD_IN_PROC(p); /* XXXKSE pretend only one thread */ 1044 1045 if (P_SHOULDSTOP(p)) { 1046 state = "T (stopped)"; 1047 } else { 1048 switch(p->p_state) { 1049 case PRS_NEW: 1050 state = "I (idle)"; 1051 break; 1052 case PRS_NORMAL: 1053 if (p->p_flag & P_WEXIT) { 1054 state = "X (exiting)"; 1055 break; 1056 } 1057 switch(td2->td_state) { 1058 case TDS_INHIBITED: 1059 state = "S (sleeping)"; 1060 break; 1061 case TDS_RUNQ: 1062 case TDS_RUNNING: 1063 state = "R (running)"; 1064 break; 1065 default: 1066 state = "? (unknown)"; 1067 break; 1068 } 1069 break; 1070 case PRS_ZOMBIE: 1071 state = "Z (zombie)"; 1072 break; 1073 default: 1074 state = "? (unknown)"; 1075 break; 1076 } 1077 } 1078 1079 fill_kinfo_proc(p, &kp); 1080 sx_sunlock(&proctree_lock); 1081 1082 sbuf_printf(sb, "Name:\t%s\n", p->p_comm); /* XXX escape */ 1083 sbuf_printf(sb, "State:\t%s\n", state); 1084 1085 /* 1086 * Credentials 1087 */ 1088 sbuf_printf(sb, "Tgid:\t%d\n", p->p_pid); 1089 sbuf_printf(sb, "Pid:\t%d\n", p->p_pid); 1090 sbuf_printf(sb, "PPid:\t%d\n", kp.ki_ppid ); 1091 sbuf_printf(sb, "TracerPid:\t%d\n", kp.ki_tracer ); 1092 sbuf_printf(sb, "Uid:\t%d %d %d %d\n", p->p_ucred->cr_ruid, 1093 p->p_ucred->cr_uid, 1094 p->p_ucred->cr_svuid, 1095 /* FreeBSD doesn't have fsuid */ 1096 p->p_ucred->cr_uid); 1097 sbuf_printf(sb, "Gid:\t%d %d %d %d\n", p->p_ucred->cr_rgid, 1098 p->p_ucred->cr_gid, 1099 p->p_ucred->cr_svgid, 1100 /* FreeBSD doesn't have fsgid */ 1101 p->p_ucred->cr_gid); 1102 sbuf_cat(sb, "Groups:\t"); 1103 for (i = 0; i < p->p_ucred->cr_ngroups; i++) 1104 sbuf_printf(sb, "%d ", p->p_ucred->cr_groups[i]); 1105 PROC_UNLOCK(p); 1106 sbuf_putc(sb, '\n'); 1107 1108 /* 1109 * Memory 1110 * 1111 * While our approximation of VmLib may not be accurate (I 1112 * don't know of a simple way to verify it, and I'm not sure 1113 * it has much meaning anyway), I believe it's good enough. 1114 * 1115 * The same code that could (I think) accurately compute VmLib 1116 * could also compute VmLck, but I don't really care enough to 1117 * implement it. Submissions are welcome. 1118 */ 1119 sbuf_printf(sb, "VmSize:\t%8ju kB\n", B2K((uintmax_t)kp.ki_size)); 1120 sbuf_printf(sb, "VmLck:\t%8u kB\n", P2K(0)); /* XXX */ 1121 sbuf_printf(sb, "VmRSS:\t%8ju kB\n", P2K((uintmax_t)kp.ki_rssize)); 1122 sbuf_printf(sb, "VmData:\t%8ju kB\n", P2K((uintmax_t)kp.ki_dsize)); 1123 sbuf_printf(sb, "VmStk:\t%8ju kB\n", P2K((uintmax_t)kp.ki_ssize)); 1124 sbuf_printf(sb, "VmExe:\t%8ju kB\n", P2K((uintmax_t)kp.ki_tsize)); 1125 lsize = B2P(kp.ki_size) - kp.ki_dsize - 1126 kp.ki_ssize - kp.ki_tsize - 1; 1127 sbuf_printf(sb, "VmLib:\t%8ju kB\n", P2K((uintmax_t)lsize)); 1128 1129 /* 1130 * Signal masks 1131 */ 1132 PROC_LOCK(p); 1133 bsd_to_linux_sigset(&p->p_siglist, &siglist); 1134 ps = p->p_sigacts; 1135 mtx_lock(&ps->ps_mtx); 1136 bsd_to_linux_sigset(&ps->ps_sigignore, &sigignore); 1137 bsd_to_linux_sigset(&ps->ps_sigcatch, &sigcatch); 1138 mtx_unlock(&ps->ps_mtx); 1139 PROC_UNLOCK(p); 1140 1141 sbuf_printf(sb, "SigPnd:\t%016jx\n", siglist.__mask); 1142 /* 1143 * XXX. SigBlk - target thread's signal mask, td_sigmask. 1144 * To implement SigBlk pseudofs should support proc/tid dir entries. 1145 */ 1146 sbuf_printf(sb, "SigBlk:\t%016x\n", 0); 1147 sbuf_printf(sb, "SigIgn:\t%016jx\n", sigignore.__mask); 1148 sbuf_printf(sb, "SigCgt:\t%016jx\n", sigcatch.__mask); 1149 1150 /* 1151 * Linux also prints the capability masks, but we don't have 1152 * capabilities yet, and when we do get them they're likely to 1153 * be meaningless to Linux programs, so we lie. XXX 1154 */ 1155 sbuf_printf(sb, "CapInh:\t%016x\n", 0); 1156 sbuf_printf(sb, "CapPrm:\t%016x\n", 0); 1157 sbuf_printf(sb, "CapEff:\t%016x\n", 0); 1158 1159 return (0); 1160 } 1161 1162 /* 1163 * Filler function for proc/pid/cwd 1164 */ 1165 static int 1166 linprocfs_doproccwd(PFS_FILL_ARGS) 1167 { 1168 struct pwd *pwd; 1169 char *fullpath = "unknown"; 1170 char *freepath = NULL; 1171 1172 pwd = pwd_hold(td); 1173 vn_fullpath(pwd->pwd_cdir, &fullpath, &freepath); 1174 sbuf_printf(sb, "%s", fullpath); 1175 if (freepath) 1176 free(freepath, M_TEMP); 1177 pwd_drop(pwd); 1178 return (0); 1179 } 1180 1181 /* 1182 * Filler function for proc/pid/root 1183 */ 1184 static int 1185 linprocfs_doprocroot(PFS_FILL_ARGS) 1186 { 1187 struct pwd *pwd; 1188 struct vnode *vp; 1189 char *fullpath = "unknown"; 1190 char *freepath = NULL; 1191 1192 pwd = pwd_hold(td); 1193 vp = jailed(p->p_ucred) ? pwd->pwd_jdir : pwd->pwd_rdir; 1194 vn_fullpath(vp, &fullpath, &freepath); 1195 sbuf_printf(sb, "%s", fullpath); 1196 if (freepath) 1197 free(freepath, M_TEMP); 1198 pwd_drop(pwd); 1199 return (0); 1200 } 1201 1202 /* 1203 * Filler function for proc/pid/cmdline 1204 */ 1205 static int 1206 linprocfs_doproccmdline(PFS_FILL_ARGS) 1207 { 1208 int ret; 1209 1210 PROC_LOCK(p); 1211 if ((ret = p_cansee(td, p)) != 0) { 1212 PROC_UNLOCK(p); 1213 return (ret); 1214 } 1215 1216 /* 1217 * Mimic linux behavior and pass only processes with usermode 1218 * address space as valid. Return zero silently otherwize. 1219 */ 1220 if (p->p_vmspace == &vmspace0) { 1221 PROC_UNLOCK(p); 1222 return (0); 1223 } 1224 if (p->p_args != NULL) { 1225 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length); 1226 PROC_UNLOCK(p); 1227 return (0); 1228 } 1229 1230 if ((p->p_flag & P_SYSTEM) != 0) { 1231 PROC_UNLOCK(p); 1232 return (0); 1233 } 1234 1235 PROC_UNLOCK(p); 1236 1237 ret = proc_getargv(td, p, sb); 1238 return (ret); 1239 } 1240 1241 /* 1242 * Filler function for proc/pid/environ 1243 */ 1244 static int 1245 linprocfs_doprocenviron(PFS_FILL_ARGS) 1246 { 1247 1248 /* 1249 * Mimic linux behavior and pass only processes with usermode 1250 * address space as valid. Return zero silently otherwize. 1251 */ 1252 if (p->p_vmspace == &vmspace0) 1253 return (0); 1254 1255 return (proc_getenvv(td, p, sb)); 1256 } 1257 1258 static char l32_map_str[] = "%08lx-%08lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n"; 1259 static char l64_map_str[] = "%016lx-%016lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n"; 1260 static char vdso_str[] = " [vdso]"; 1261 static char stack_str[] = " [stack]"; 1262 1263 /* 1264 * Filler function for proc/pid/maps 1265 */ 1266 static int 1267 linprocfs_doprocmaps(PFS_FILL_ARGS) 1268 { 1269 struct vmspace *vm; 1270 vm_map_t map; 1271 vm_map_entry_t entry, tmp_entry; 1272 vm_object_t obj, tobj, lobj; 1273 vm_offset_t e_start, e_end; 1274 vm_ooffset_t off; 1275 vm_prot_t e_prot; 1276 unsigned int last_timestamp; 1277 char *name = "", *freename = NULL; 1278 const char *l_map_str; 1279 ino_t ino; 1280 int ref_count, shadow_count, flags; 1281 int error; 1282 struct vnode *vp; 1283 struct vattr vat; 1284 bool private; 1285 1286 PROC_LOCK(p); 1287 error = p_candebug(td, p); 1288 PROC_UNLOCK(p); 1289 if (error) 1290 return (error); 1291 1292 if (uio->uio_rw != UIO_READ) 1293 return (EOPNOTSUPP); 1294 1295 error = 0; 1296 vm = vmspace_acquire_ref(p); 1297 if (vm == NULL) 1298 return (ESRCH); 1299 1300 if (SV_CURPROC_FLAG(SV_LP64)) 1301 l_map_str = l64_map_str; 1302 else 1303 l_map_str = l32_map_str; 1304 map = &vm->vm_map; 1305 vm_map_lock_read(map); 1306 VM_MAP_ENTRY_FOREACH(entry, map) { 1307 name = ""; 1308 freename = NULL; 1309 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) 1310 continue; 1311 e_prot = entry->protection; 1312 e_start = entry->start; 1313 e_end = entry->end; 1314 obj = entry->object.vm_object; 1315 off = entry->offset; 1316 for (lobj = tobj = obj; tobj != NULL; 1317 lobj = tobj, tobj = tobj->backing_object) { 1318 VM_OBJECT_RLOCK(tobj); 1319 off += lobj->backing_object_offset; 1320 if (lobj != obj) 1321 VM_OBJECT_RUNLOCK(lobj); 1322 } 1323 private = (entry->eflags & MAP_ENTRY_COW) != 0 || obj == NULL || 1324 (obj->flags & OBJ_ANON) != 0; 1325 last_timestamp = map->timestamp; 1326 vm_map_unlock_read(map); 1327 ino = 0; 1328 if (lobj) { 1329 vp = vm_object_vnode(lobj); 1330 if (vp != NULL) 1331 vref(vp); 1332 if (lobj != obj) 1333 VM_OBJECT_RUNLOCK(lobj); 1334 flags = obj->flags; 1335 ref_count = obj->ref_count; 1336 shadow_count = obj->shadow_count; 1337 VM_OBJECT_RUNLOCK(obj); 1338 if (vp != NULL) { 1339 vn_fullpath(vp, &name, &freename); 1340 vn_lock(vp, LK_SHARED | LK_RETRY); 1341 VOP_GETATTR(vp, &vat, td->td_ucred); 1342 ino = vat.va_fileid; 1343 vput(vp); 1344 } else if (SV_PROC_ABI(p) == SV_ABI_LINUX) { 1345 if (e_start == p->p_sysent->sv_shared_page_base) 1346 name = vdso_str; 1347 if (e_end == p->p_sysent->sv_usrstack) 1348 name = stack_str; 1349 } 1350 } else { 1351 flags = 0; 1352 ref_count = 0; 1353 shadow_count = 0; 1354 } 1355 1356 /* 1357 * format: 1358 * start, end, access, offset, major, minor, inode, name. 1359 */ 1360 error = sbuf_printf(sb, l_map_str, 1361 (u_long)e_start, (u_long)e_end, 1362 (e_prot & VM_PROT_READ)?"r":"-", 1363 (e_prot & VM_PROT_WRITE)?"w":"-", 1364 (e_prot & VM_PROT_EXECUTE)?"x":"-", 1365 private ? "p" : "s", 1366 (u_long)off, 1367 0, 1368 0, 1369 (u_long)ino, 1370 *name ? " " : " ", 1371 name 1372 ); 1373 if (freename) 1374 free(freename, M_TEMP); 1375 vm_map_lock_read(map); 1376 if (error == -1) { 1377 error = 0; 1378 break; 1379 } 1380 if (last_timestamp != map->timestamp) { 1381 /* 1382 * Look again for the entry because the map was 1383 * modified while it was unlocked. Specifically, 1384 * the entry may have been clipped, merged, or deleted. 1385 */ 1386 vm_map_lookup_entry(map, e_end - 1, &tmp_entry); 1387 entry = tmp_entry; 1388 } 1389 } 1390 vm_map_unlock_read(map); 1391 vmspace_free(vm); 1392 1393 return (error); 1394 } 1395 1396 /* 1397 * Filler function for proc/pid/mem 1398 */ 1399 static int 1400 linprocfs_doprocmem(PFS_FILL_ARGS) 1401 { 1402 ssize_t resid; 1403 int error; 1404 1405 resid = uio->uio_resid; 1406 error = procfs_doprocmem(PFS_FILL_ARGNAMES); 1407 1408 if (uio->uio_rw == UIO_READ && resid != uio->uio_resid) 1409 return (0); 1410 1411 if (error == EFAULT) 1412 error = EIO; 1413 1414 return (error); 1415 } 1416 1417 /* 1418 * Criteria for interface name translation 1419 */ 1420 #define IFP_IS_ETH(ifp) (ifp->if_type == IFT_ETHER) 1421 1422 static int 1423 linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen) 1424 { 1425 struct ifnet *ifscan; 1426 int ethno; 1427 1428 IFNET_RLOCK_ASSERT(); 1429 1430 /* Short-circuit non ethernet interfaces */ 1431 if (!IFP_IS_ETH(ifp)) 1432 return (strlcpy(buffer, ifp->if_xname, buflen)); 1433 1434 /* Determine the (relative) unit number for ethernet interfaces */ 1435 ethno = 0; 1436 CK_STAILQ_FOREACH(ifscan, &V_ifnet, if_link) { 1437 if (ifscan == ifp) 1438 return (snprintf(buffer, buflen, "eth%d", ethno)); 1439 if (IFP_IS_ETH(ifscan)) 1440 ethno++; 1441 } 1442 1443 return (0); 1444 } 1445 1446 /* 1447 * Filler function for proc/net/dev 1448 */ 1449 static int 1450 linprocfs_donetdev(PFS_FILL_ARGS) 1451 { 1452 char ifname[16]; /* XXX LINUX_IFNAMSIZ */ 1453 struct ifnet *ifp; 1454 1455 sbuf_printf(sb, "%6s|%58s|%s\n" 1456 "%6s|%58s|%58s\n", 1457 "Inter-", " Receive", " Transmit", 1458 " face", 1459 "bytes packets errs drop fifo frame compressed multicast", 1460 "bytes packets errs drop fifo colls carrier compressed"); 1461 1462 CURVNET_SET(TD_TO_VNET(curthread)); 1463 IFNET_RLOCK(); 1464 CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) { 1465 linux_ifname(ifp, ifname, sizeof ifname); 1466 sbuf_printf(sb, "%6.6s: ", ifname); 1467 sbuf_printf(sb, "%7ju %7ju %4ju %4ju %4lu %5lu %10lu %9ju ", 1468 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IBYTES), 1469 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IPACKETS), 1470 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IERRORS), 1471 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IQDROPS), 1472 /* rx_missed_errors */ 1473 0UL, /* rx_fifo_errors */ 1474 0UL, /* rx_length_errors + 1475 * rx_over_errors + 1476 * rx_crc_errors + 1477 * rx_frame_errors */ 1478 0UL, /* rx_compressed */ 1479 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IMCASTS)); 1480 /* XXX-BZ rx only? */ 1481 sbuf_printf(sb, "%8ju %7ju %4ju %4ju %4lu %5ju %7lu %10lu\n", 1482 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OBYTES), 1483 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OPACKETS), 1484 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OERRORS), 1485 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OQDROPS), 1486 0UL, /* tx_fifo_errors */ 1487 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_COLLISIONS), 1488 0UL, /* tx_carrier_errors + 1489 * tx_aborted_errors + 1490 * tx_window_errors + 1491 * tx_heartbeat_errors*/ 1492 0UL); /* tx_compressed */ 1493 } 1494 IFNET_RUNLOCK(); 1495 CURVNET_RESTORE(); 1496 1497 return (0); 1498 } 1499 1500 /* 1501 * Filler function for proc/sys/kernel/osrelease 1502 */ 1503 static int 1504 linprocfs_doosrelease(PFS_FILL_ARGS) 1505 { 1506 char osrelease[LINUX_MAX_UTSNAME]; 1507 1508 linux_get_osrelease(td, osrelease); 1509 sbuf_printf(sb, "%s\n", osrelease); 1510 1511 return (0); 1512 } 1513 1514 /* 1515 * Filler function for proc/sys/kernel/ostype 1516 */ 1517 static int 1518 linprocfs_doostype(PFS_FILL_ARGS) 1519 { 1520 char osname[LINUX_MAX_UTSNAME]; 1521 1522 linux_get_osname(td, osname); 1523 sbuf_printf(sb, "%s\n", osname); 1524 1525 return (0); 1526 } 1527 1528 /* 1529 * Filler function for proc/sys/kernel/version 1530 */ 1531 static int 1532 linprocfs_doosbuild(PFS_FILL_ARGS) 1533 { 1534 1535 linprocfs_osbuild(td, sb); 1536 sbuf_cat(sb, "\n"); 1537 return (0); 1538 } 1539 1540 /* 1541 * Filler function for proc/sys/kernel/msgmax 1542 */ 1543 static int 1544 linprocfs_domsgmax(PFS_FILL_ARGS) 1545 { 1546 1547 sbuf_printf(sb, "%d\n", msginfo.msgmax); 1548 return (0); 1549 } 1550 1551 /* 1552 * Filler function for proc/sys/kernel/msgmni 1553 */ 1554 static int 1555 linprocfs_domsgmni(PFS_FILL_ARGS) 1556 { 1557 1558 sbuf_printf(sb, "%d\n", msginfo.msgmni); 1559 return (0); 1560 } 1561 1562 /* 1563 * Filler function for proc/sys/kernel/msgmnb 1564 */ 1565 static int 1566 linprocfs_domsgmnb(PFS_FILL_ARGS) 1567 { 1568 1569 sbuf_printf(sb, "%d\n", msginfo.msgmnb); 1570 return (0); 1571 } 1572 1573 /* 1574 * Filler function for proc/sys/kernel/ngroups_max 1575 * 1576 * Note that in Linux it defaults to 65536, not 1023. 1577 */ 1578 static int 1579 linprocfs_dongroups_max(PFS_FILL_ARGS) 1580 { 1581 1582 sbuf_printf(sb, "%d\n", ngroups_max); 1583 return (0); 1584 } 1585 1586 /* 1587 * Filler function for proc/sys/kernel/pid_max 1588 */ 1589 static int 1590 linprocfs_dopid_max(PFS_FILL_ARGS) 1591 { 1592 1593 sbuf_printf(sb, "%i\n", PID_MAX); 1594 return (0); 1595 } 1596 1597 /* 1598 * Filler function for proc/sys/kernel/sem 1599 */ 1600 static int 1601 linprocfs_dosem(PFS_FILL_ARGS) 1602 { 1603 1604 sbuf_printf(sb, "%d %d %d %d\n", seminfo.semmsl, seminfo.semmns, 1605 seminfo.semopm, seminfo.semmni); 1606 return (0); 1607 } 1608 1609 /* 1610 * Filler function for proc/sys/kernel/shmall 1611 */ 1612 static int 1613 linprocfs_doshmall(PFS_FILL_ARGS) 1614 { 1615 1616 sbuf_printf(sb, "%lu\n", shminfo.shmall); 1617 return (0); 1618 } 1619 1620 /* 1621 * Filler function for proc/sys/kernel/shmmax 1622 */ 1623 static int 1624 linprocfs_doshmmax(PFS_FILL_ARGS) 1625 { 1626 1627 sbuf_printf(sb, "%lu\n", shminfo.shmmax); 1628 return (0); 1629 } 1630 1631 /* 1632 * Filler function for proc/sys/kernel/shmmni 1633 */ 1634 static int 1635 linprocfs_doshmmni(PFS_FILL_ARGS) 1636 { 1637 1638 sbuf_printf(sb, "%lu\n", shminfo.shmmni); 1639 return (0); 1640 } 1641 1642 /* 1643 * Filler function for proc/sys/kernel/tainted 1644 */ 1645 static int 1646 linprocfs_dotainted(PFS_FILL_ARGS) 1647 { 1648 1649 sbuf_printf(sb, "\n"); 1650 return (0); 1651 } 1652 1653 /* 1654 * Filler function for proc/sys/vm/min_free_kbytes 1655 * 1656 * This mirrors the approach in illumos to return zero for reads. Effectively, 1657 * it says, no memory is kept in reserve for "atomic allocations". This class 1658 * of allocation can be used at times when a thread cannot be suspended. 1659 */ 1660 static int 1661 linprocfs_dominfree(PFS_FILL_ARGS) 1662 { 1663 1664 sbuf_printf(sb, "%d\n", 0); 1665 return (0); 1666 } 1667 1668 /* 1669 * Filler function for proc/scsi/device_info 1670 */ 1671 static int 1672 linprocfs_doscsidevinfo(PFS_FILL_ARGS) 1673 { 1674 1675 return (0); 1676 } 1677 1678 /* 1679 * Filler function for proc/scsi/scsi 1680 */ 1681 static int 1682 linprocfs_doscsiscsi(PFS_FILL_ARGS) 1683 { 1684 1685 return (0); 1686 } 1687 1688 /* 1689 * Filler function for proc/devices 1690 */ 1691 static int 1692 linprocfs_dodevices(PFS_FILL_ARGS) 1693 { 1694 char *char_devices; 1695 sbuf_printf(sb, "Character devices:\n"); 1696 1697 char_devices = linux_get_char_devices(); 1698 sbuf_printf(sb, "%s", char_devices); 1699 linux_free_get_char_devices(char_devices); 1700 1701 sbuf_printf(sb, "\nBlock devices:\n"); 1702 1703 return (0); 1704 } 1705 1706 /* 1707 * Filler function for proc/cmdline 1708 */ 1709 static int 1710 linprocfs_docmdline(PFS_FILL_ARGS) 1711 { 1712 1713 sbuf_printf(sb, "BOOT_IMAGE=%s", kernelname); 1714 sbuf_printf(sb, " ro root=302\n"); 1715 return (0); 1716 } 1717 1718 /* 1719 * Filler function for proc/filesystems 1720 */ 1721 static int 1722 linprocfs_dofilesystems(PFS_FILL_ARGS) 1723 { 1724 struct vfsconf *vfsp; 1725 1726 vfsconf_slock(); 1727 TAILQ_FOREACH(vfsp, &vfsconf, vfc_list) { 1728 if (vfsp->vfc_flags & VFCF_SYNTHETIC) 1729 sbuf_printf(sb, "nodev"); 1730 sbuf_printf(sb, "\t%s\n", vfsp->vfc_name); 1731 } 1732 vfsconf_sunlock(); 1733 return(0); 1734 } 1735 1736 /* 1737 * Filler function for proc/modules 1738 */ 1739 static int 1740 linprocfs_domodules(PFS_FILL_ARGS) 1741 { 1742 #if 0 1743 struct linker_file *lf; 1744 1745 TAILQ_FOREACH(lf, &linker_files, link) { 1746 sbuf_printf(sb, "%-20s%8lu%4d\n", lf->filename, 1747 (unsigned long)lf->size, lf->refs); 1748 } 1749 #endif 1750 return (0); 1751 } 1752 1753 /* 1754 * Filler function for proc/pid/fd 1755 */ 1756 static int 1757 linprocfs_dofdescfs(PFS_FILL_ARGS) 1758 { 1759 1760 if (p == curproc) 1761 sbuf_printf(sb, "/dev/fd"); 1762 else 1763 sbuf_printf(sb, "unknown"); 1764 return (0); 1765 } 1766 1767 /* 1768 * Filler function for proc/pid/limits 1769 */ 1770 static const struct linux_rlimit_ident { 1771 const char *desc; 1772 const char *unit; 1773 unsigned int rlim_id; 1774 } linux_rlimits_ident[] = { 1775 { "Max cpu time", "seconds", RLIMIT_CPU }, 1776 { "Max file size", "bytes", RLIMIT_FSIZE }, 1777 { "Max data size", "bytes", RLIMIT_DATA }, 1778 { "Max stack size", "bytes", RLIMIT_STACK }, 1779 { "Max core file size", "bytes", RLIMIT_CORE }, 1780 { "Max resident set", "bytes", RLIMIT_RSS }, 1781 { "Max processes", "processes", RLIMIT_NPROC }, 1782 { "Max open files", "files", RLIMIT_NOFILE }, 1783 { "Max locked memory", "bytes", RLIMIT_MEMLOCK }, 1784 { "Max address space", "bytes", RLIMIT_AS }, 1785 { "Max file locks", "locks", LINUX_RLIMIT_LOCKS }, 1786 { "Max pending signals", "signals", LINUX_RLIMIT_SIGPENDING }, 1787 { "Max msgqueue size", "bytes", LINUX_RLIMIT_MSGQUEUE }, 1788 { "Max nice priority", "", LINUX_RLIMIT_NICE }, 1789 { "Max realtime priority", "", LINUX_RLIMIT_RTPRIO }, 1790 { "Max realtime timeout", "us", LINUX_RLIMIT_RTTIME }, 1791 { 0, 0, 0 } 1792 }; 1793 1794 static int 1795 linprocfs_doproclimits(PFS_FILL_ARGS) 1796 { 1797 const struct linux_rlimit_ident *li; 1798 struct plimit *limp; 1799 struct rlimit rl; 1800 ssize_t size; 1801 int res, error; 1802 1803 error = 0; 1804 1805 PROC_LOCK(p); 1806 limp = lim_hold(p->p_limit); 1807 PROC_UNLOCK(p); 1808 size = sizeof(res); 1809 sbuf_printf(sb, "%-26s%-21s%-21s%-21s\n", "Limit", "Soft Limit", 1810 "Hard Limit", "Units"); 1811 for (li = linux_rlimits_ident; li->desc != NULL; ++li) { 1812 switch (li->rlim_id) 1813 { 1814 case LINUX_RLIMIT_LOCKS: 1815 /* FALLTHROUGH */ 1816 case LINUX_RLIMIT_RTTIME: 1817 rl.rlim_cur = RLIM_INFINITY; 1818 break; 1819 case LINUX_RLIMIT_SIGPENDING: 1820 error = kernel_sysctlbyname(td, 1821 "kern.sigqueue.max_pending_per_proc", 1822 &res, &size, 0, 0, 0, 0); 1823 if (error != 0) 1824 goto out; 1825 rl.rlim_cur = res; 1826 rl.rlim_max = res; 1827 break; 1828 case LINUX_RLIMIT_MSGQUEUE: 1829 error = kernel_sysctlbyname(td, 1830 "kern.ipc.msgmnb", &res, &size, 0, 0, 0, 0); 1831 if (error != 0) 1832 goto out; 1833 rl.rlim_cur = res; 1834 rl.rlim_max = res; 1835 break; 1836 case LINUX_RLIMIT_NICE: 1837 /* FALLTHROUGH */ 1838 case LINUX_RLIMIT_RTPRIO: 1839 rl.rlim_cur = 0; 1840 rl.rlim_max = 0; 1841 break; 1842 default: 1843 rl = limp->pl_rlimit[li->rlim_id]; 1844 break; 1845 } 1846 if (rl.rlim_cur == RLIM_INFINITY) 1847 sbuf_printf(sb, "%-26s%-21s%-21s%-10s\n", 1848 li->desc, "unlimited", "unlimited", li->unit); 1849 else 1850 sbuf_printf(sb, "%-26s%-21llu%-21llu%-10s\n", 1851 li->desc, (unsigned long long)rl.rlim_cur, 1852 (unsigned long long)rl.rlim_max, li->unit); 1853 } 1854 out: 1855 lim_free(limp); 1856 return (error); 1857 } 1858 1859 /* 1860 * The point of the following two functions is to work around 1861 * an assertion in Chromium; see kern/240991 for details. 1862 */ 1863 static int 1864 linprocfs_dotaskattr(PFS_ATTR_ARGS) 1865 { 1866 1867 vap->va_nlink = 3; 1868 return (0); 1869 } 1870 1871 /* 1872 * Filler function for proc/<pid>/task/.dummy 1873 */ 1874 static int 1875 linprocfs_dotaskdummy(PFS_FILL_ARGS) 1876 { 1877 1878 return (0); 1879 } 1880 1881 /* 1882 * Filler function for proc/sys/kernel/random/uuid 1883 */ 1884 static int 1885 linprocfs_douuid(PFS_FILL_ARGS) 1886 { 1887 struct uuid uuid; 1888 1889 kern_uuidgen(&uuid, 1); 1890 sbuf_printf_uuid(sb, &uuid); 1891 sbuf_printf(sb, "\n"); 1892 return(0); 1893 } 1894 1895 /* 1896 * Filler function for proc/pid/auxv 1897 */ 1898 static int 1899 linprocfs_doauxv(PFS_FILL_ARGS) 1900 { 1901 struct sbuf *asb; 1902 off_t buflen, resid; 1903 int error; 1904 1905 /* 1906 * Mimic linux behavior and pass only processes with usermode 1907 * address space as valid. Return zero silently otherwise. 1908 */ 1909 if (p->p_vmspace == &vmspace0) 1910 return (0); 1911 1912 if (uio->uio_resid == 0) 1913 return (0); 1914 if (uio->uio_offset < 0 || uio->uio_resid < 0) 1915 return (EINVAL); 1916 1917 asb = sbuf_new_auto(); 1918 if (asb == NULL) 1919 return (ENOMEM); 1920 error = proc_getauxv(td, p, asb); 1921 if (error == 0) 1922 error = sbuf_finish(asb); 1923 1924 resid = sbuf_len(asb) - uio->uio_offset; 1925 if (resid > uio->uio_resid) 1926 buflen = uio->uio_resid; 1927 else 1928 buflen = resid; 1929 if (buflen > IOSIZE_MAX) 1930 return (EINVAL); 1931 if (buflen > maxphys) 1932 buflen = maxphys; 1933 if (resid <= 0) 1934 return (0); 1935 1936 if (error == 0) 1937 error = uiomove(sbuf_data(asb) + uio->uio_offset, buflen, uio); 1938 sbuf_delete(asb); 1939 return (error); 1940 } 1941 1942 /* 1943 * Constructor 1944 */ 1945 static int 1946 linprocfs_init(PFS_INIT_ARGS) 1947 { 1948 struct pfs_node *root; 1949 struct pfs_node *dir; 1950 struct pfs_node *sys; 1951 1952 root = pi->pi_root; 1953 1954 /* /proc/... */ 1955 pfs_create_file(root, "cmdline", &linprocfs_docmdline, 1956 NULL, NULL, NULL, PFS_RD); 1957 pfs_create_file(root, "cpuinfo", &linprocfs_docpuinfo, 1958 NULL, NULL, NULL, PFS_RD); 1959 pfs_create_file(root, "devices", &linprocfs_dodevices, 1960 NULL, NULL, NULL, PFS_RD); 1961 pfs_create_file(root, "filesystems", &linprocfs_dofilesystems, 1962 NULL, NULL, NULL, PFS_RD); 1963 pfs_create_file(root, "loadavg", &linprocfs_doloadavg, 1964 NULL, NULL, NULL, PFS_RD); 1965 pfs_create_file(root, "meminfo", &linprocfs_domeminfo, 1966 NULL, NULL, NULL, PFS_RD); 1967 pfs_create_file(root, "modules", &linprocfs_domodules, 1968 NULL, NULL, NULL, PFS_RD); 1969 pfs_create_file(root, "mounts", &linprocfs_domtab, 1970 NULL, NULL, NULL, PFS_RD); 1971 pfs_create_file(root, "mtab", &linprocfs_domtab, 1972 NULL, NULL, NULL, PFS_RD); 1973 pfs_create_file(root, "partitions", &linprocfs_dopartitions, 1974 NULL, NULL, NULL, PFS_RD); 1975 pfs_create_link(root, "self", &procfs_docurproc, 1976 NULL, NULL, NULL, 0); 1977 pfs_create_file(root, "stat", &linprocfs_dostat, 1978 NULL, NULL, NULL, PFS_RD); 1979 pfs_create_file(root, "swaps", &linprocfs_doswaps, 1980 NULL, NULL, NULL, PFS_RD); 1981 pfs_create_file(root, "uptime", &linprocfs_douptime, 1982 NULL, NULL, NULL, PFS_RD); 1983 pfs_create_file(root, "version", &linprocfs_doversion, 1984 NULL, NULL, NULL, PFS_RD); 1985 1986 /* /proc/bus/... */ 1987 dir = pfs_create_dir(root, "bus", NULL, NULL, NULL, 0); 1988 dir = pfs_create_dir(dir, "pci", NULL, NULL, NULL, 0); 1989 dir = pfs_create_dir(dir, "devices", NULL, NULL, NULL, 0); 1990 1991 /* /proc/net/... */ 1992 dir = pfs_create_dir(root, "net", NULL, NULL, NULL, 0); 1993 pfs_create_file(dir, "dev", &linprocfs_donetdev, 1994 NULL, NULL, NULL, PFS_RD); 1995 1996 /* /proc/<pid>/... */ 1997 dir = pfs_create_dir(root, "pid", NULL, NULL, NULL, PFS_PROCDEP); 1998 pfs_create_file(dir, "cmdline", &linprocfs_doproccmdline, 1999 NULL, NULL, NULL, PFS_RD); 2000 pfs_create_link(dir, "cwd", &linprocfs_doproccwd, 2001 NULL, NULL, NULL, 0); 2002 pfs_create_file(dir, "environ", &linprocfs_doprocenviron, 2003 NULL, &procfs_candebug, NULL, PFS_RD); 2004 pfs_create_link(dir, "exe", &procfs_doprocfile, 2005 NULL, &procfs_notsystem, NULL, 0); 2006 pfs_create_file(dir, "maps", &linprocfs_doprocmaps, 2007 NULL, NULL, NULL, PFS_RD | PFS_AUTODRAIN); 2008 pfs_create_file(dir, "mem", &linprocfs_doprocmem, 2009 procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR | PFS_RAW); 2010 pfs_create_file(dir, "mountinfo", &linprocfs_doprocmountinfo, 2011 NULL, NULL, NULL, PFS_RD); 2012 pfs_create_file(dir, "mounts", &linprocfs_domtab, 2013 NULL, NULL, NULL, PFS_RD); 2014 pfs_create_link(dir, "root", &linprocfs_doprocroot, 2015 NULL, NULL, NULL, 0); 2016 pfs_create_file(dir, "stat", &linprocfs_doprocstat, 2017 NULL, NULL, NULL, PFS_RD); 2018 pfs_create_file(dir, "statm", &linprocfs_doprocstatm, 2019 NULL, NULL, NULL, PFS_RD); 2020 pfs_create_file(dir, "status", &linprocfs_doprocstatus, 2021 NULL, NULL, NULL, PFS_RD); 2022 pfs_create_link(dir, "fd", &linprocfs_dofdescfs, 2023 NULL, NULL, NULL, 0); 2024 pfs_create_file(dir, "auxv", &linprocfs_doauxv, 2025 NULL, &procfs_candebug, NULL, PFS_RD|PFS_RAWRD); 2026 pfs_create_file(dir, "limits", &linprocfs_doproclimits, 2027 NULL, NULL, NULL, PFS_RD); 2028 2029 /* /proc/<pid>/task/... */ 2030 dir = pfs_create_dir(dir, "task", linprocfs_dotaskattr, NULL, NULL, 0); 2031 pfs_create_file(dir, ".dummy", &linprocfs_dotaskdummy, 2032 NULL, NULL, NULL, PFS_RD); 2033 2034 /* /proc/scsi/... */ 2035 dir = pfs_create_dir(root, "scsi", NULL, NULL, NULL, 0); 2036 pfs_create_file(dir, "device_info", &linprocfs_doscsidevinfo, 2037 NULL, NULL, NULL, PFS_RD); 2038 pfs_create_file(dir, "scsi", &linprocfs_doscsiscsi, 2039 NULL, NULL, NULL, PFS_RD); 2040 2041 /* /proc/sys/... */ 2042 sys = pfs_create_dir(root, "sys", NULL, NULL, NULL, 0); 2043 2044 /* /proc/sys/kernel/... */ 2045 dir = pfs_create_dir(sys, "kernel", NULL, NULL, NULL, 0); 2046 pfs_create_file(dir, "osrelease", &linprocfs_doosrelease, 2047 NULL, NULL, NULL, PFS_RD); 2048 pfs_create_file(dir, "ostype", &linprocfs_doostype, 2049 NULL, NULL, NULL, PFS_RD); 2050 pfs_create_file(dir, "version", &linprocfs_doosbuild, 2051 NULL, NULL, NULL, PFS_RD); 2052 pfs_create_file(dir, "msgmax", &linprocfs_domsgmax, 2053 NULL, NULL, NULL, PFS_RD); 2054 pfs_create_file(dir, "msgmni", &linprocfs_domsgmni, 2055 NULL, NULL, NULL, PFS_RD); 2056 pfs_create_file(dir, "msgmnb", &linprocfs_domsgmnb, 2057 NULL, NULL, NULL, PFS_RD); 2058 pfs_create_file(dir, "ngroups_max", &linprocfs_dongroups_max, 2059 NULL, NULL, NULL, PFS_RD); 2060 pfs_create_file(dir, "pid_max", &linprocfs_dopid_max, 2061 NULL, NULL, NULL, PFS_RD); 2062 pfs_create_file(dir, "sem", &linprocfs_dosem, 2063 NULL, NULL, NULL, PFS_RD); 2064 pfs_create_file(dir, "shmall", &linprocfs_doshmall, 2065 NULL, NULL, NULL, PFS_RD); 2066 pfs_create_file(dir, "shmmax", &linprocfs_doshmmax, 2067 NULL, NULL, NULL, PFS_RD); 2068 pfs_create_file(dir, "shmmni", &linprocfs_doshmmni, 2069 NULL, NULL, NULL, PFS_RD); 2070 pfs_create_file(dir, "tainted", &linprocfs_dotainted, 2071 NULL, NULL, NULL, PFS_RD); 2072 2073 /* /proc/sys/kernel/random/... */ 2074 dir = pfs_create_dir(dir, "random", NULL, NULL, NULL, 0); 2075 pfs_create_file(dir, "uuid", &linprocfs_douuid, 2076 NULL, NULL, NULL, PFS_RD); 2077 2078 /* /proc/sys/vm/.... */ 2079 dir = pfs_create_dir(sys, "vm", NULL, NULL, NULL, 0); 2080 pfs_create_file(dir, "min_free_kbytes", &linprocfs_dominfree, 2081 NULL, NULL, NULL, PFS_RD); 2082 2083 return (0); 2084 } 2085 2086 /* 2087 * Destructor 2088 */ 2089 static int 2090 linprocfs_uninit(PFS_INIT_ARGS) 2091 { 2092 2093 /* nothing to do, pseudofs will GC */ 2094 return (0); 2095 } 2096 2097 PSEUDOFS(linprocfs, 1, VFCF_JAIL); 2098 #if defined(__aarch64__) || defined(__amd64__) 2099 MODULE_DEPEND(linprocfs, linux_common, 1, 1, 1); 2100 #else 2101 MODULE_DEPEND(linprocfs, linux, 1, 1, 1); 2102 #endif 2103 MODULE_DEPEND(linprocfs, procfs, 1, 1, 1); 2104 MODULE_DEPEND(linprocfs, sysvmsg, 1, 1, 1); 2105 MODULE_DEPEND(linprocfs, sysvsem, 1, 1, 1); 2106 MODULE_DEPEND(linprocfs, sysvshm, 1, 1, 1);
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