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