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