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