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FreeBSD/Linux Kernel Cross Reference
sys/compat/linprocfs/linprocfs.c
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1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav 5 * Copyright (c) 1999 Pierre Beyssac 6 * Copyright (c) 1993 Jan-Simon Pendry 7 * Copyright (c) 1993 8 * The Regents of the University of California. All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Jan-Simon Pendry. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 42 */ 43 44 #include <sys/cdefs.h> 45 __FBSDID("$FreeBSD: releng/12.0/sys/compat/linprocfs/linprocfs.c 335516 2018-06-22 00:02:05Z chuck $"); 46 47 #include <sys/param.h> 48 #include <sys/queue.h> 49 #include <sys/blist.h> 50 #include <sys/conf.h> 51 #include <sys/exec.h> 52 #include <sys/fcntl.h> 53 #include <sys/filedesc.h> 54 #include <sys/jail.h> 55 #include <sys/kernel.h> 56 #include <sys/limits.h> 57 #include <sys/linker.h> 58 #include <sys/lock.h> 59 #include <sys/malloc.h> 60 #include <sys/msg.h> 61 #include <sys/mutex.h> 62 #include <sys/namei.h> 63 #include <sys/proc.h> 64 #include <sys/ptrace.h> 65 #include <sys/resourcevar.h> 66 #include <sys/resource.h> 67 #include <sys/sbuf.h> 68 #include <sys/sem.h> 69 #include <sys/smp.h> 70 #include <sys/socket.h> 71 #include <sys/syscallsubr.h> 72 #include <sys/sysctl.h> 73 #include <sys/sysent.h> 74 #include <sys/systm.h> 75 #include <sys/time.h> 76 #include <sys/tty.h> 77 #include <sys/user.h> 78 #include <sys/uuid.h> 79 #include <sys/vmmeter.h> 80 #include <sys/vnode.h> 81 #include <sys/bus.h> 82 83 #include <net/if.h> 84 #include <net/if_var.h> 85 #include <net/if_types.h> 86 87 #include <vm/vm.h> 88 #include <vm/vm_extern.h> 89 #include <vm/pmap.h> 90 #include <vm/vm_map.h> 91 #include <vm/vm_param.h> 92 #include <vm/vm_object.h> 93 #include <vm/swap_pager.h> 94 95 #include <machine/clock.h> 96 97 #include <geom/geom.h> 98 #include <geom/geom_int.h> 99 100 #if defined(__i386__) || defined(__amd64__) 101 #include <machine/cputypes.h> 102 #include <machine/md_var.h> 103 #endif /* __i386__ || __amd64__ */ 104 105 #include <compat/linux/linux.h> 106 #include <compat/linux/linux_mib.h> 107 #include <compat/linux/linux_misc.h> 108 #include <compat/linux/linux_util.h> 109 #include <fs/pseudofs/pseudofs.h> 110 #include <fs/procfs/procfs.h> 111 112 /* 113 * Various conversion macros 114 */ 115 #define T2J(x) ((long)(((x) * 100ULL) / (stathz ? stathz : hz))) /* ticks to jiffies */ 116 #define T2CS(x) ((unsigned long)(((x) * 100ULL) / (stathz ? stathz : hz))) /* ticks to centiseconds */ 117 #define T2S(x) ((x) / (stathz ? stathz : hz)) /* ticks to seconds */ 118 #define B2K(x) ((x) >> 10) /* bytes to kbytes */ 119 #define B2P(x) ((x) >> PAGE_SHIFT) /* bytes to pages */ 120 #define P2B(x) ((x) << PAGE_SHIFT) /* pages to bytes */ 121 #define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* pages to kbytes */ 122 #define TV2J(x) ((x)->tv_sec * 100UL + (x)->tv_usec / 10000) 123 124 /** 125 * @brief Mapping of ki_stat in struct kinfo_proc to the linux state 126 * 127 * The linux procfs state field displays one of the characters RSDZTW to 128 * denote running, sleeping in an interruptible wait, waiting in an 129 * uninterruptible disk sleep, a zombie process, process is being traced 130 * or stopped, or process is paging respectively. 131 * 132 * Our struct kinfo_proc contains the variable ki_stat which contains a 133 * value out of SIDL, SRUN, SSLEEP, SSTOP, SZOMB, SWAIT and SLOCK. 134 * 135 * This character array is used with ki_stati-1 as an index and tries to 136 * map our states to suitable linux states. 137 */ 138 static char linux_state[] = "RRSTZDD"; 139 140 /* 141 * Filler function for proc/meminfo 142 */ 143 static int 144 linprocfs_domeminfo(PFS_FILL_ARGS) 145 { 146 unsigned long memtotal; /* total memory in bytes */ 147 unsigned long memused; /* used memory in bytes */ 148 unsigned long memfree; /* free memory in bytes */ 149 unsigned long buffers, cached; /* buffer / cache memory ??? */ 150 unsigned long long swaptotal; /* total swap space in bytes */ 151 unsigned long long swapused; /* used swap space in bytes */ 152 unsigned long long swapfree; /* free swap space in bytes */ 153 int i, j; 154 155 memtotal = physmem * PAGE_SIZE; 156 /* 157 * The correct thing here would be: 158 * 159 memfree = vm_free_count() * PAGE_SIZE; 160 memused = memtotal - memfree; 161 * 162 * but it might mislead linux binaries into thinking there 163 * is very little memory left, so we cheat and tell them that 164 * all memory that isn't wired down is free. 165 */ 166 memused = vm_wire_count() * PAGE_SIZE; 167 memfree = memtotal - memused; 168 swap_pager_status(&i, &j); 169 swaptotal = (unsigned long long)i * PAGE_SIZE; 170 swapused = (unsigned long long)j * PAGE_SIZE; 171 swapfree = swaptotal - swapused; 172 /* 173 * We'd love to be able to write: 174 * 175 buffers = bufspace; 176 * 177 * but bufspace is internal to vfs_bio.c and we don't feel 178 * like unstaticizing it just for linprocfs's sake. 179 */ 180 buffers = 0; 181 cached = vm_inactive_count() * PAGE_SIZE; 182 183 sbuf_printf(sb, 184 "MemTotal: %9lu kB\n" 185 "MemFree: %9lu kB\n" 186 "Buffers: %9lu kB\n" 187 "Cached: %9lu kB\n" 188 "SwapTotal:%9llu kB\n" 189 "SwapFree: %9llu kB\n", 190 B2K(memtotal), B2K(memfree), B2K(buffers), 191 B2K(cached), B2K(swaptotal), B2K(swapfree)); 192 193 return (0); 194 } 195 196 #if defined(__i386__) || defined(__amd64__) 197 /* 198 * Filler function for proc/cpuinfo (i386 & amd64 version) 199 */ 200 static int 201 linprocfs_docpuinfo(PFS_FILL_ARGS) 202 { 203 int hw_model[2]; 204 char model[128]; 205 uint64_t freq; 206 size_t size; 207 u_int cache_size[4]; 208 int fqmhz, fqkhz; 209 int i, j; 210 211 /* 212 * We default the flags to include all non-conflicting flags, 213 * and the Intel versions of conflicting flags. 214 */ 215 static char *flags[] = { 216 "fpu", "vme", "de", "pse", "tsc", 217 "msr", "pae", "mce", "cx8", "apic", 218 "sep", "sep", "mtrr", "pge", "mca", 219 "cmov", "pat", "pse36", "pn", "b19", 220 "b20", "b21", "mmxext", "mmx", "fxsr", 221 "xmm", "sse2", "b27", "b28", "b29", 222 "3dnowext", "3dnow" 223 }; 224 225 static char *power_flags[] = { 226 "ts", "fid", "vid", 227 "ttp", "tm", "stc", 228 "100mhzsteps", "hwpstate", "", 229 "cpb", "eff_freq_ro", "proc_feedback", 230 "acc_power", 231 }; 232 233 hw_model[0] = CTL_HW; 234 hw_model[1] = HW_MODEL; 235 model[0] = '\0'; 236 size = sizeof(model); 237 if (kernel_sysctl(td, hw_model, 2, &model, &size, 0, 0, 0, 0) != 0) 238 strcpy(model, "unknown"); 239 #ifdef __i386__ 240 switch (cpu_vendor_id) { 241 case CPU_VENDOR_AMD: 242 if (cpu_class < CPUCLASS_686) 243 flags[16] = "fcmov"; 244 break; 245 case CPU_VENDOR_CYRIX: 246 flags[24] = "cxmmx"; 247 break; 248 } 249 #endif 250 if (cpu_exthigh >= 0x80000006) 251 do_cpuid(0x80000006, cache_size); 252 else 253 memset(cache_size, 0, sizeof(cache_size)); 254 for (i = 0; i < mp_ncpus; ++i) { 255 fqmhz = 0; 256 fqkhz = 0; 257 freq = atomic_load_acq_64(&tsc_freq); 258 if (freq != 0) { 259 fqmhz = (freq + 4999) / 1000000; 260 fqkhz = ((freq + 4999) / 10000) % 100; 261 } 262 sbuf_printf(sb, 263 "processor\t: %d\n" 264 "vendor_id\t: %.20s\n" 265 "cpu family\t: %u\n" 266 "model\t\t: %u\n" 267 "model name\t: %s\n" 268 "stepping\t: %u\n" 269 "cpu MHz\t\t: %d.%02d\n" 270 "cache size\t: %d KB\n" 271 "physical id\t: %d\n" 272 "siblings\t: %d\n" 273 "core id\t\t: %d\n" 274 "cpu cores\t: %d\n" 275 "apicid\t\t: %d\n" 276 "initial apicid\t: %d\n" 277 "fpu\t\t: %s\n" 278 "fpu_exception\t: %s\n" 279 "cpuid level\t: %d\n" 280 "wp\t\t: %s\n", 281 i, cpu_vendor, CPUID_TO_FAMILY(cpu_id), 282 CPUID_TO_MODEL(cpu_id), model, cpu_id & CPUID_STEPPING, 283 fqmhz, fqkhz, 284 (cache_size[2] >> 16), 0, mp_ncpus, i, mp_ncpus, 285 i, i, /*cpu_id & CPUID_LOCAL_APIC_ID ??*/ 286 (cpu_feature & CPUID_FPU) ? "yes" : "no", "yes", 287 CPUID_TO_FAMILY(cpu_id), "yes"); 288 sbuf_cat(sb, "flags\t\t:"); 289 for (j = 0; j < nitems(flags); j++) 290 if (cpu_feature & (1 << j)) 291 sbuf_printf(sb, " %s", flags[j]); 292 sbuf_cat(sb, "\n"); 293 sbuf_printf(sb, 294 "bugs\t\t: %s\n" 295 "bogomips\t: %d.%02d\n" 296 "clflush size\t: %d\n" 297 "cache_alignment\t: %d\n" 298 "address sizes\t: %d bits physical, %d bits virtual\n", 299 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 300 (has_f00f_bug) ? "Intel F00F" : "", 301 #else 302 "", 303 #endif 304 fqmhz, fqkhz, 305 cpu_clflush_line_size, cpu_clflush_line_size, 306 cpu_maxphyaddr, 307 (cpu_maxphyaddr > 32) ? 48 : 0); 308 sbuf_cat(sb, "power management: "); 309 for (j = 0; j < nitems(power_flags); j++) 310 if (amd_pminfo & (1 << j)) 311 sbuf_printf(sb, " %s", power_flags[j]); 312 sbuf_cat(sb, "\n\n"); 313 314 /* XXX per-cpu vendor / class / model / id? */ 315 } 316 sbuf_cat(sb, "\n"); 317 318 return (0); 319 } 320 #else 321 /* ARM64TODO: implement non-stubbed linprocfs_docpuinfo */ 322 static int 323 linprocfs_docpuinfo(PFS_FILL_ARGS) 324 { 325 int i; 326 327 for (i = 0; i < mp_ncpus; ++i) { 328 sbuf_printf(sb, 329 "processor\t: %d\n" 330 "BogoMIPS\t: %d.%02d\n", 331 i, 0, 0); 332 sbuf_cat(sb, "Features\t: "); 333 sbuf_cat(sb, "\n"); 334 sbuf_printf(sb, 335 "CPU implementer\t: \n" 336 "CPU architecture: \n" 337 "CPU variant\t: 0x%x\n" 338 "CPU part\t: 0x%x\n" 339 "CPU revision\t: %d\n", 340 0, 0, 0); 341 sbuf_cat(sb, "\n"); 342 } 343 344 return (0); 345 } 346 #endif /* __i386__ || __amd64__ */ 347 348 /* 349 * Filler function for proc/mtab 350 * 351 * This file doesn't exist in Linux' procfs, but is included here so 352 * users can symlink /compat/linux/etc/mtab to /proc/mtab 353 */ 354 static int 355 linprocfs_domtab(PFS_FILL_ARGS) 356 { 357 struct nameidata nd; 358 const char *lep; 359 char *dlep, *flep, *mntto, *mntfrom, *fstype; 360 size_t lep_len; 361 int error; 362 struct statfs *buf, *sp; 363 size_t count; 364 365 /* resolve symlinks etc. in the emulation tree prefix */ 366 NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, linux_emul_path, td); 367 flep = NULL; 368 error = namei(&nd); 369 lep = linux_emul_path; 370 if (error == 0) { 371 if (vn_fullpath(td, nd.ni_vp, &dlep, &flep) == 0) 372 lep = dlep; 373 vrele(nd.ni_vp); 374 } 375 lep_len = strlen(lep); 376 377 buf = NULL; 378 error = kern_getfsstat(td, &buf, SIZE_T_MAX, &count, 379 UIO_SYSSPACE, MNT_WAIT); 380 if (error != 0) { 381 free(buf, M_TEMP); 382 free(flep, M_TEMP); 383 return (error); 384 } 385 386 for (sp = buf; count > 0; sp++, count--) { 387 /* determine device name */ 388 mntfrom = sp->f_mntfromname; 389 390 /* determine mount point */ 391 mntto = sp->f_mntonname; 392 if (strncmp(mntto, lep, lep_len) == 0 && mntto[lep_len] == '/') 393 mntto += lep_len; 394 395 /* determine fs type */ 396 fstype = sp->f_fstypename; 397 if (strcmp(fstype, pn->pn_info->pi_name) == 0) 398 mntfrom = fstype = "proc"; 399 else if (strcmp(fstype, "procfs") == 0) 400 continue; 401 402 if (strcmp(fstype, "linsysfs") == 0) { 403 sbuf_printf(sb, "/sys %s sysfs %s", mntto, 404 sp->f_flags & MNT_RDONLY ? "ro" : "rw"); 405 } else { 406 /* For Linux msdosfs is called vfat */ 407 if (strcmp(fstype, "msdosfs") == 0) 408 fstype = "vfat"; 409 sbuf_printf(sb, "%s %s %s %s", mntfrom, mntto, fstype, 410 sp->f_flags & MNT_RDONLY ? "ro" : "rw"); 411 } 412 #define ADD_OPTION(opt, name) \ 413 if (sp->f_flags & (opt)) sbuf_printf(sb, "," name); 414 ADD_OPTION(MNT_SYNCHRONOUS, "sync"); 415 ADD_OPTION(MNT_NOEXEC, "noexec"); 416 ADD_OPTION(MNT_NOSUID, "nosuid"); 417 ADD_OPTION(MNT_UNION, "union"); 418 ADD_OPTION(MNT_ASYNC, "async"); 419 ADD_OPTION(MNT_SUIDDIR, "suiddir"); 420 ADD_OPTION(MNT_NOSYMFOLLOW, "nosymfollow"); 421 ADD_OPTION(MNT_NOATIME, "noatime"); 422 #undef ADD_OPTION 423 /* a real Linux mtab will also show NFS options */ 424 sbuf_printf(sb, " 0 0\n"); 425 } 426 427 free(buf, M_TEMP); 428 free(flep, M_TEMP); 429 return (error); 430 } 431 432 /* 433 * Filler function for proc/partitions 434 */ 435 static int 436 linprocfs_dopartitions(PFS_FILL_ARGS) 437 { 438 struct g_class *cp; 439 struct g_geom *gp; 440 struct g_provider *pp; 441 int major, minor; 442 443 g_topology_lock(); 444 sbuf_printf(sb, "major minor #blocks name rio rmerge rsect " 445 "ruse wio wmerge wsect wuse running use aveq\n"); 446 447 LIST_FOREACH(cp, &g_classes, class) { 448 if (strcmp(cp->name, "DISK") == 0 || 449 strcmp(cp->name, "PART") == 0) 450 LIST_FOREACH(gp, &cp->geom, geom) { 451 LIST_FOREACH(pp, &gp->provider, provider) { 452 if (linux_driver_get_major_minor( 453 pp->name, &major, &minor) != 0) { 454 major = 0; 455 minor = 0; 456 } 457 sbuf_printf(sb, "%d %d %lld %s " 458 "%d %d %d %d %d " 459 "%d %d %d %d %d %d\n", 460 major, minor, 461 (long long)pp->mediasize, pp->name, 462 0, 0, 0, 0, 0, 463 0, 0, 0, 0, 0, 0); 464 } 465 } 466 } 467 g_topology_unlock(); 468 469 return (0); 470 } 471 472 /* 473 * Filler function for proc/stat 474 * 475 * Output depends on kernel version: 476 * 477 * v2.5.40 <= 478 * user nice system idle 479 * v2.5.41 480 * user nice system idle iowait 481 * v2.6.11 482 * user nice system idle iowait irq softirq steal 483 * v2.6.24 484 * user nice system idle iowait irq softirq steal guest 485 * v2.6.33 >= 486 * user nice system idle iowait irq softirq steal guest guest_nice 487 */ 488 static int 489 linprocfs_dostat(PFS_FILL_ARGS) 490 { 491 struct pcpu *pcpu; 492 long cp_time[CPUSTATES]; 493 long *cp; 494 struct timeval boottime; 495 int i; 496 char *zero_pad; 497 bool has_intr = true; 498 499 if (linux_kernver(td) >= LINUX_KERNVER(2,6,33)) { 500 zero_pad = " 0 0 0 0\n"; 501 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,24)) { 502 zero_pad = " 0 0 0\n"; 503 } else if (linux_kernver(td) >= LINUX_KERNVER(2,6,11)) { 504 zero_pad = " 0 0\n"; 505 } else if (linux_kernver(td) >= LINUX_KERNVER(2,5,41)) { 506 has_intr = false; 507 zero_pad = " 0\n"; 508 } else { 509 has_intr = false; 510 zero_pad = "\n"; 511 } 512 513 read_cpu_time(cp_time); 514 getboottime(&boottime); 515 /* Parameters common to all versions */ 516 sbuf_printf(sb, "cpu %lu %lu %lu %lu", 517 T2J(cp_time[CP_USER]), 518 T2J(cp_time[CP_NICE]), 519 T2J(cp_time[CP_SYS]), 520 T2J(cp_time[CP_IDLE])); 521 522 /* Print interrupt stats if available */ 523 if (has_intr) { 524 sbuf_printf(sb, " 0 %lu", T2J(cp_time[CP_INTR])); 525 } 526 527 /* Pad out remaining fields depending on version */ 528 sbuf_printf(sb, "%s", zero_pad); 529 530 CPU_FOREACH(i) { 531 pcpu = pcpu_find(i); 532 cp = pcpu->pc_cp_time; 533 sbuf_printf(sb, "cpu%d %lu %lu %lu %lu", i, 534 T2J(cp[CP_USER]), 535 T2J(cp[CP_NICE]), 536 T2J(cp[CP_SYS]), 537 T2J(cp[CP_IDLE])); 538 539 if (has_intr) { 540 sbuf_printf(sb, " 0 %lu", T2J(cp[CP_INTR])); 541 } 542 543 sbuf_printf(sb, "%s", zero_pad); 544 } 545 sbuf_printf(sb, 546 "disk 0 0 0 0\n" 547 "page %ju %ju\n" 548 "swap %ju %ju\n" 549 "intr %ju\n" 550 "ctxt %ju\n" 551 "btime %lld\n", 552 (uintmax_t)VM_CNT_FETCH(v_vnodepgsin), 553 (uintmax_t)VM_CNT_FETCH(v_vnodepgsout), 554 (uintmax_t)VM_CNT_FETCH(v_swappgsin), 555 (uintmax_t)VM_CNT_FETCH(v_swappgsout), 556 (uintmax_t)VM_CNT_FETCH(v_intr), 557 (uintmax_t)VM_CNT_FETCH(v_swtch), 558 (long long)boottime.tv_sec); 559 return (0); 560 } 561 562 static int 563 linprocfs_doswaps(PFS_FILL_ARGS) 564 { 565 struct xswdev xsw; 566 uintmax_t total, used; 567 int n; 568 char devname[SPECNAMELEN + 1]; 569 570 sbuf_printf(sb, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n"); 571 for (n = 0; ; n++) { 572 if (swap_dev_info(n, &xsw, devname, sizeof(devname)) != 0) 573 break; 574 total = (uintmax_t)xsw.xsw_nblks * PAGE_SIZE / 1024; 575 used = (uintmax_t)xsw.xsw_used * PAGE_SIZE / 1024; 576 577 /* 578 * The space and not tab after the device name is on 579 * purpose. Linux does so. 580 */ 581 sbuf_printf(sb, "/dev/%-34s unknown\t\t%jd\t%jd\t-1\n", 582 devname, total, used); 583 } 584 return (0); 585 } 586 587 /* 588 * Filler function for proc/uptime 589 */ 590 static int 591 linprocfs_douptime(PFS_FILL_ARGS) 592 { 593 long cp_time[CPUSTATES]; 594 struct timeval tv; 595 596 getmicrouptime(&tv); 597 read_cpu_time(cp_time); 598 sbuf_printf(sb, "%lld.%02ld %ld.%02lu\n", 599 (long long)tv.tv_sec, tv.tv_usec / 10000, 600 T2S(cp_time[CP_IDLE] / mp_ncpus), 601 T2CS(cp_time[CP_IDLE] / mp_ncpus) % 100); 602 return (0); 603 } 604 605 /* 606 * Get OS build date 607 */ 608 static void 609 linprocfs_osbuild(struct thread *td, struct sbuf *sb) 610 { 611 #if 0 612 char osbuild[256]; 613 char *cp1, *cp2; 614 615 strncpy(osbuild, version, 256); 616 osbuild[255] = '\0'; 617 cp1 = strstr(osbuild, "\n"); 618 cp2 = strstr(osbuild, ":"); 619 if (cp1 && cp2) { 620 *cp1 = *cp2 = '\0'; 621 cp1 = strstr(osbuild, "#"); 622 } else 623 cp1 = NULL; 624 if (cp1) 625 sbuf_printf(sb, "%s%s", cp1, cp2 + 1); 626 else 627 #endif 628 sbuf_cat(sb, "#4 Sun Dec 18 04:30:00 CET 1977"); 629 } 630 631 /* 632 * Get OS builder 633 */ 634 static void 635 linprocfs_osbuilder(struct thread *td, struct sbuf *sb) 636 { 637 #if 0 638 char builder[256]; 639 char *cp; 640 641 cp = strstr(version, "\n "); 642 if (cp) { 643 strncpy(builder, cp + 5, 256); 644 builder[255] = '\0'; 645 cp = strstr(builder, ":"); 646 if (cp) 647 *cp = '\0'; 648 } 649 if (cp) 650 sbuf_cat(sb, builder); 651 else 652 #endif 653 sbuf_cat(sb, "des@freebsd.org"); 654 } 655 656 /* 657 * Filler function for proc/version 658 */ 659 static int 660 linprocfs_doversion(PFS_FILL_ARGS) 661 { 662 char osname[LINUX_MAX_UTSNAME]; 663 char osrelease[LINUX_MAX_UTSNAME]; 664 665 linux_get_osname(td, osname); 666 linux_get_osrelease(td, osrelease); 667 sbuf_printf(sb, "%s version %s (", osname, osrelease); 668 linprocfs_osbuilder(td, sb); 669 sbuf_cat(sb, ") (gcc version " __VERSION__ ") "); 670 linprocfs_osbuild(td, sb); 671 sbuf_cat(sb, "\n"); 672 673 return (0); 674 } 675 676 /* 677 * Filler function for proc/loadavg 678 */ 679 static int 680 linprocfs_doloadavg(PFS_FILL_ARGS) 681 { 682 683 sbuf_printf(sb, 684 "%d.%02d %d.%02d %d.%02d %d/%d %d\n", 685 (int)(averunnable.ldavg[0] / averunnable.fscale), 686 (int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100), 687 (int)(averunnable.ldavg[1] / averunnable.fscale), 688 (int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100), 689 (int)(averunnable.ldavg[2] / averunnable.fscale), 690 (int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100), 691 1, /* number of running tasks */ 692 nprocs, /* number of tasks */ 693 lastpid /* the last pid */ 694 ); 695 return (0); 696 } 697 698 /* 699 * Filler function for proc/pid/stat 700 */ 701 static int 702 linprocfs_doprocstat(PFS_FILL_ARGS) 703 { 704 struct kinfo_proc kp; 705 struct timeval boottime; 706 char state; 707 static int ratelimit = 0; 708 vm_offset_t startcode, startdata; 709 710 getboottime(&boottime); 711 sx_slock(&proctree_lock); 712 PROC_LOCK(p); 713 fill_kinfo_proc(p, &kp); 714 sx_sunlock(&proctree_lock); 715 if (p->p_vmspace) { 716 startcode = (vm_offset_t)p->p_vmspace->vm_taddr; 717 startdata = (vm_offset_t)p->p_vmspace->vm_daddr; 718 } else { 719 startcode = 0; 720 startdata = 0; 721 } 722 sbuf_printf(sb, "%d", p->p_pid); 723 #define PS_ADD(name, fmt, arg) sbuf_printf(sb, " " fmt, arg) 724 PS_ADD("comm", "(%s)", p->p_comm); 725 if (kp.ki_stat > sizeof(linux_state)) { 726 state = 'R'; 727 728 if (ratelimit == 0) { 729 printf("linprocfs: don't know how to handle unknown FreeBSD state %d/%zd, mapping to R\n", 730 kp.ki_stat, sizeof(linux_state)); 731 ++ratelimit; 732 } 733 } else 734 state = linux_state[kp.ki_stat - 1]; 735 PS_ADD("state", "%c", state); 736 PS_ADD("ppid", "%d", p->p_pptr ? p->p_pptr->p_pid : 0); 737 PS_ADD("pgrp", "%d", p->p_pgid); 738 PS_ADD("session", "%d", p->p_session->s_sid); 739 PROC_UNLOCK(p); 740 PS_ADD("tty", "%ju", (uintmax_t)kp.ki_tdev); 741 PS_ADD("tpgid", "%d", kp.ki_tpgid); 742 PS_ADD("flags", "%u", 0); /* XXX */ 743 PS_ADD("minflt", "%lu", kp.ki_rusage.ru_minflt); 744 PS_ADD("cminflt", "%lu", kp.ki_rusage_ch.ru_minflt); 745 PS_ADD("majflt", "%lu", kp.ki_rusage.ru_majflt); 746 PS_ADD("cmajflt", "%lu", kp.ki_rusage_ch.ru_majflt); 747 PS_ADD("utime", "%ld", TV2J(&kp.ki_rusage.ru_utime)); 748 PS_ADD("stime", "%ld", TV2J(&kp.ki_rusage.ru_stime)); 749 PS_ADD("cutime", "%ld", TV2J(&kp.ki_rusage_ch.ru_utime)); 750 PS_ADD("cstime", "%ld", TV2J(&kp.ki_rusage_ch.ru_stime)); 751 PS_ADD("priority", "%d", kp.ki_pri.pri_user); 752 PS_ADD("nice", "%d", kp.ki_nice); /* 19 (nicest) to -19 */ 753 PS_ADD("", "%d", 0); /* removed field */ 754 PS_ADD("itrealvalue", "%d", 0); /* XXX */ 755 PS_ADD("starttime", "%lu", TV2J(&kp.ki_start) - TV2J(&boottime)); 756 PS_ADD("vsize", "%ju", P2K((uintmax_t)kp.ki_size)); 757 PS_ADD("rss", "%ju", (uintmax_t)kp.ki_rssize); 758 PS_ADD("rlim", "%lu", kp.ki_rusage.ru_maxrss); 759 PS_ADD("startcode", "%ju", (uintmax_t)startcode); 760 PS_ADD("endcode", "%ju", (uintmax_t)startdata); 761 PS_ADD("startstack", "%u", 0); /* XXX */ 762 PS_ADD("kstkesp", "%u", 0); /* XXX */ 763 PS_ADD("kstkeip", "%u", 0); /* XXX */ 764 PS_ADD("signal", "%u", 0); /* XXX */ 765 PS_ADD("blocked", "%u", 0); /* XXX */ 766 PS_ADD("sigignore", "%u", 0); /* XXX */ 767 PS_ADD("sigcatch", "%u", 0); /* XXX */ 768 PS_ADD("wchan", "%u", 0); /* XXX */ 769 PS_ADD("nswap", "%lu", kp.ki_rusage.ru_nswap); 770 PS_ADD("cnswap", "%lu", kp.ki_rusage_ch.ru_nswap); 771 PS_ADD("exitsignal", "%d", 0); /* XXX */ 772 PS_ADD("processor", "%u", kp.ki_lastcpu); 773 PS_ADD("rt_priority", "%u", 0); /* XXX */ /* >= 2.5.19 */ 774 PS_ADD("policy", "%u", kp.ki_pri.pri_class); /* >= 2.5.19 */ 775 #undef PS_ADD 776 sbuf_putc(sb, '\n'); 777 778 return (0); 779 } 780 781 /* 782 * Filler function for proc/pid/statm 783 */ 784 static int 785 linprocfs_doprocstatm(PFS_FILL_ARGS) 786 { 787 struct kinfo_proc kp; 788 segsz_t lsize; 789 790 sx_slock(&proctree_lock); 791 PROC_LOCK(p); 792 fill_kinfo_proc(p, &kp); 793 PROC_UNLOCK(p); 794 sx_sunlock(&proctree_lock); 795 796 /* 797 * See comments in linprocfs_doprocstatus() regarding the 798 * computation of lsize. 799 */ 800 /* size resident share trs drs lrs dt */ 801 sbuf_printf(sb, "%ju ", B2P((uintmax_t)kp.ki_size)); 802 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_rssize); 803 sbuf_printf(sb, "%ju ", (uintmax_t)0); /* XXX */ 804 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_tsize); 805 sbuf_printf(sb, "%ju ", (uintmax_t)(kp.ki_dsize + kp.ki_ssize)); 806 lsize = B2P(kp.ki_size) - kp.ki_dsize - 807 kp.ki_ssize - kp.ki_tsize - 1; 808 sbuf_printf(sb, "%ju ", (uintmax_t)lsize); 809 sbuf_printf(sb, "%ju\n", (uintmax_t)0); /* XXX */ 810 811 return (0); 812 } 813 814 /* 815 * Filler function for proc/pid/status 816 */ 817 static int 818 linprocfs_doprocstatus(PFS_FILL_ARGS) 819 { 820 struct kinfo_proc kp; 821 char *state; 822 segsz_t lsize; 823 struct thread *td2; 824 struct sigacts *ps; 825 l_sigset_t siglist, sigignore, sigcatch; 826 int i; 827 828 sx_slock(&proctree_lock); 829 PROC_LOCK(p); 830 td2 = FIRST_THREAD_IN_PROC(p); /* XXXKSE pretend only one thread */ 831 832 if (P_SHOULDSTOP(p)) { 833 state = "T (stopped)"; 834 } else { 835 switch(p->p_state) { 836 case PRS_NEW: 837 state = "I (idle)"; 838 break; 839 case PRS_NORMAL: 840 if (p->p_flag & P_WEXIT) { 841 state = "X (exiting)"; 842 break; 843 } 844 switch(td2->td_state) { 845 case TDS_INHIBITED: 846 state = "S (sleeping)"; 847 break; 848 case TDS_RUNQ: 849 case TDS_RUNNING: 850 state = "R (running)"; 851 break; 852 default: 853 state = "? (unknown)"; 854 break; 855 } 856 break; 857 case PRS_ZOMBIE: 858 state = "Z (zombie)"; 859 break; 860 default: 861 state = "? (unknown)"; 862 break; 863 } 864 } 865 866 fill_kinfo_proc(p, &kp); 867 sx_sunlock(&proctree_lock); 868 869 sbuf_printf(sb, "Name:\t%s\n", p->p_comm); /* XXX escape */ 870 sbuf_printf(sb, "State:\t%s\n", state); 871 872 /* 873 * Credentials 874 */ 875 sbuf_printf(sb, "Pid:\t%d\n", p->p_pid); 876 sbuf_printf(sb, "PPid:\t%d\n", kp.ki_ppid ); 877 sbuf_printf(sb, "TracerPid:\t%d\n", kp.ki_tracer ); 878 sbuf_printf(sb, "Uid:\t%d %d %d %d\n", p->p_ucred->cr_ruid, 879 p->p_ucred->cr_uid, 880 p->p_ucred->cr_svuid, 881 /* FreeBSD doesn't have fsuid */ 882 p->p_ucred->cr_uid); 883 sbuf_printf(sb, "Gid:\t%d %d %d %d\n", p->p_ucred->cr_rgid, 884 p->p_ucred->cr_gid, 885 p->p_ucred->cr_svgid, 886 /* FreeBSD doesn't have fsgid */ 887 p->p_ucred->cr_gid); 888 sbuf_cat(sb, "Groups:\t"); 889 for (i = 0; i < p->p_ucred->cr_ngroups; i++) 890 sbuf_printf(sb, "%d ", p->p_ucred->cr_groups[i]); 891 PROC_UNLOCK(p); 892 sbuf_putc(sb, '\n'); 893 894 /* 895 * Memory 896 * 897 * While our approximation of VmLib may not be accurate (I 898 * don't know of a simple way to verify it, and I'm not sure 899 * it has much meaning anyway), I believe it's good enough. 900 * 901 * The same code that could (I think) accurately compute VmLib 902 * could also compute VmLck, but I don't really care enough to 903 * implement it. Submissions are welcome. 904 */ 905 sbuf_printf(sb, "VmSize:\t%8ju kB\n", B2K((uintmax_t)kp.ki_size)); 906 sbuf_printf(sb, "VmLck:\t%8u kB\n", P2K(0)); /* XXX */ 907 sbuf_printf(sb, "VmRSS:\t%8ju kB\n", P2K((uintmax_t)kp.ki_rssize)); 908 sbuf_printf(sb, "VmData:\t%8ju kB\n", P2K((uintmax_t)kp.ki_dsize)); 909 sbuf_printf(sb, "VmStk:\t%8ju kB\n", P2K((uintmax_t)kp.ki_ssize)); 910 sbuf_printf(sb, "VmExe:\t%8ju kB\n", P2K((uintmax_t)kp.ki_tsize)); 911 lsize = B2P(kp.ki_size) - kp.ki_dsize - 912 kp.ki_ssize - kp.ki_tsize - 1; 913 sbuf_printf(sb, "VmLib:\t%8ju kB\n", P2K((uintmax_t)lsize)); 914 915 /* 916 * Signal masks 917 */ 918 PROC_LOCK(p); 919 bsd_to_linux_sigset(&p->p_siglist, &siglist); 920 ps = p->p_sigacts; 921 mtx_lock(&ps->ps_mtx); 922 bsd_to_linux_sigset(&ps->ps_sigignore, &sigignore); 923 bsd_to_linux_sigset(&ps->ps_sigcatch, &sigcatch); 924 mtx_unlock(&ps->ps_mtx); 925 PROC_UNLOCK(p); 926 927 sbuf_printf(sb, "SigPnd:\t%016jx\n", siglist.__mask); 928 /* 929 * XXX. SigBlk - target thread's signal mask, td_sigmask. 930 * To implement SigBlk pseudofs should support proc/tid dir entries. 931 */ 932 sbuf_printf(sb, "SigBlk:\t%016x\n", 0); 933 sbuf_printf(sb, "SigIgn:\t%016jx\n", sigignore.__mask); 934 sbuf_printf(sb, "SigCgt:\t%016jx\n", sigcatch.__mask); 935 936 /* 937 * Linux also prints the capability masks, but we don't have 938 * capabilities yet, and when we do get them they're likely to 939 * be meaningless to Linux programs, so we lie. XXX 940 */ 941 sbuf_printf(sb, "CapInh:\t%016x\n", 0); 942 sbuf_printf(sb, "CapPrm:\t%016x\n", 0); 943 sbuf_printf(sb, "CapEff:\t%016x\n", 0); 944 945 return (0); 946 } 947 948 949 /* 950 * Filler function for proc/pid/cwd 951 */ 952 static int 953 linprocfs_doproccwd(PFS_FILL_ARGS) 954 { 955 struct filedesc *fdp; 956 struct vnode *vp; 957 char *fullpath = "unknown"; 958 char *freepath = NULL; 959 960 fdp = p->p_fd; 961 FILEDESC_SLOCK(fdp); 962 vp = fdp->fd_cdir; 963 if (vp != NULL) 964 VREF(vp); 965 FILEDESC_SUNLOCK(fdp); 966 vn_fullpath(td, vp, &fullpath, &freepath); 967 if (vp != NULL) 968 vrele(vp); 969 sbuf_printf(sb, "%s", fullpath); 970 if (freepath) 971 free(freepath, M_TEMP); 972 return (0); 973 } 974 975 /* 976 * Filler function for proc/pid/root 977 */ 978 static int 979 linprocfs_doprocroot(PFS_FILL_ARGS) 980 { 981 struct filedesc *fdp; 982 struct vnode *vp; 983 char *fullpath = "unknown"; 984 char *freepath = NULL; 985 986 fdp = p->p_fd; 987 FILEDESC_SLOCK(fdp); 988 vp = jailed(p->p_ucred) ? fdp->fd_jdir : fdp->fd_rdir; 989 if (vp != NULL) 990 VREF(vp); 991 FILEDESC_SUNLOCK(fdp); 992 vn_fullpath(td, vp, &fullpath, &freepath); 993 if (vp != NULL) 994 vrele(vp); 995 sbuf_printf(sb, "%s", fullpath); 996 if (freepath) 997 free(freepath, M_TEMP); 998 return (0); 999 } 1000 1001 /* 1002 * Filler function for proc/pid/cmdline 1003 */ 1004 static int 1005 linprocfs_doproccmdline(PFS_FILL_ARGS) 1006 { 1007 int ret; 1008 1009 PROC_LOCK(p); 1010 if ((ret = p_cansee(td, p)) != 0) { 1011 PROC_UNLOCK(p); 1012 return (ret); 1013 } 1014 1015 /* 1016 * Mimic linux behavior and pass only processes with usermode 1017 * address space as valid. Return zero silently otherwize. 1018 */ 1019 if (p->p_vmspace == &vmspace0) { 1020 PROC_UNLOCK(p); 1021 return (0); 1022 } 1023 if (p->p_args != NULL) { 1024 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length); 1025 PROC_UNLOCK(p); 1026 return (0); 1027 } 1028 1029 if ((p->p_flag & P_SYSTEM) != 0) { 1030 PROC_UNLOCK(p); 1031 return (0); 1032 } 1033 1034 PROC_UNLOCK(p); 1035 1036 ret = proc_getargv(td, p, sb); 1037 return (ret); 1038 } 1039 1040 /* 1041 * Filler function for proc/pid/environ 1042 */ 1043 static int 1044 linprocfs_doprocenviron(PFS_FILL_ARGS) 1045 { 1046 1047 /* 1048 * Mimic linux behavior and pass only processes with usermode 1049 * address space as valid. Return zero silently otherwize. 1050 */ 1051 if (p->p_vmspace == &vmspace0) 1052 return (0); 1053 1054 return (proc_getenvv(td, p, sb)); 1055 } 1056 1057 static char l32_map_str[] = "%08lx-%08lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n"; 1058 static char l64_map_str[] = "%016lx-%016lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n"; 1059 static char vdso_str[] = " [vdso]"; 1060 static char stack_str[] = " [stack]"; 1061 1062 /* 1063 * Filler function for proc/pid/maps 1064 */ 1065 static int 1066 linprocfs_doprocmaps(PFS_FILL_ARGS) 1067 { 1068 struct vmspace *vm; 1069 vm_map_t map; 1070 vm_map_entry_t entry, tmp_entry; 1071 vm_object_t obj, tobj, lobj; 1072 vm_offset_t e_start, e_end; 1073 vm_ooffset_t off = 0; 1074 vm_prot_t e_prot; 1075 unsigned int last_timestamp; 1076 char *name = "", *freename = NULL; 1077 const char *l_map_str; 1078 ino_t ino; 1079 int ref_count, shadow_count, flags; 1080 int error; 1081 struct vnode *vp; 1082 struct vattr vat; 1083 1084 PROC_LOCK(p); 1085 error = p_candebug(td, p); 1086 PROC_UNLOCK(p); 1087 if (error) 1088 return (error); 1089 1090 if (uio->uio_rw != UIO_READ) 1091 return (EOPNOTSUPP); 1092 1093 error = 0; 1094 vm = vmspace_acquire_ref(p); 1095 if (vm == NULL) 1096 return (ESRCH); 1097 1098 if (SV_CURPROC_FLAG(SV_LP64)) 1099 l_map_str = l64_map_str; 1100 else 1101 l_map_str = l32_map_str; 1102 map = &vm->vm_map; 1103 vm_map_lock_read(map); 1104 for (entry = map->header.next; entry != &map->header; 1105 entry = entry->next) { 1106 name = ""; 1107 freename = NULL; 1108 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) 1109 continue; 1110 e_prot = entry->protection; 1111 e_start = entry->start; 1112 e_end = entry->end; 1113 obj = entry->object.vm_object; 1114 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) { 1115 VM_OBJECT_RLOCK(tobj); 1116 if (lobj != obj) 1117 VM_OBJECT_RUNLOCK(lobj); 1118 lobj = tobj; 1119 } 1120 last_timestamp = map->timestamp; 1121 vm_map_unlock_read(map); 1122 ino = 0; 1123 if (lobj) { 1124 off = IDX_TO_OFF(lobj->size); 1125 vp = vm_object_vnode(lobj); 1126 if (vp != NULL) 1127 vref(vp); 1128 if (lobj != obj) 1129 VM_OBJECT_RUNLOCK(lobj); 1130 flags = obj->flags; 1131 ref_count = obj->ref_count; 1132 shadow_count = obj->shadow_count; 1133 VM_OBJECT_RUNLOCK(obj); 1134 if (vp != NULL) { 1135 vn_fullpath(td, vp, &name, &freename); 1136 vn_lock(vp, LK_SHARED | LK_RETRY); 1137 VOP_GETATTR(vp, &vat, td->td_ucred); 1138 ino = vat.va_fileid; 1139 vput(vp); 1140 } else if (SV_PROC_ABI(p) == SV_ABI_LINUX) { 1141 if (e_start == p->p_sysent->sv_shared_page_base) 1142 name = vdso_str; 1143 if (e_end == p->p_sysent->sv_usrstack) 1144 name = stack_str; 1145 } 1146 } else { 1147 flags = 0; 1148 ref_count = 0; 1149 shadow_count = 0; 1150 } 1151 1152 /* 1153 * format: 1154 * start, end, access, offset, major, minor, inode, name. 1155 */ 1156 error = sbuf_printf(sb, l_map_str, 1157 (u_long)e_start, (u_long)e_end, 1158 (e_prot & VM_PROT_READ)?"r":"-", 1159 (e_prot & VM_PROT_WRITE)?"w":"-", 1160 (e_prot & VM_PROT_EXECUTE)?"x":"-", 1161 "p", 1162 (u_long)off, 1163 0, 1164 0, 1165 (u_long)ino, 1166 *name ? " " : "", 1167 name 1168 ); 1169 if (freename) 1170 free(freename, M_TEMP); 1171 vm_map_lock_read(map); 1172 if (error == -1) { 1173 error = 0; 1174 break; 1175 } 1176 if (last_timestamp != map->timestamp) { 1177 /* 1178 * Look again for the entry because the map was 1179 * modified while it was unlocked. Specifically, 1180 * the entry may have been clipped, merged, or deleted. 1181 */ 1182 vm_map_lookup_entry(map, e_end - 1, &tmp_entry); 1183 entry = tmp_entry; 1184 } 1185 } 1186 vm_map_unlock_read(map); 1187 vmspace_free(vm); 1188 1189 return (error); 1190 } 1191 1192 /* 1193 * Criteria for interface name translation 1194 */ 1195 #define IFP_IS_ETH(ifp) (ifp->if_type == IFT_ETHER) 1196 1197 static int 1198 linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen) 1199 { 1200 struct ifnet *ifscan; 1201 int ethno; 1202 1203 IFNET_RLOCK_ASSERT(); 1204 1205 /* Short-circuit non ethernet interfaces */ 1206 if (!IFP_IS_ETH(ifp)) 1207 return (strlcpy(buffer, ifp->if_xname, buflen)); 1208 1209 /* Determine the (relative) unit number for ethernet interfaces */ 1210 ethno = 0; 1211 CK_STAILQ_FOREACH(ifscan, &V_ifnet, if_link) { 1212 if (ifscan == ifp) 1213 return (snprintf(buffer, buflen, "eth%d", ethno)); 1214 if (IFP_IS_ETH(ifscan)) 1215 ethno++; 1216 } 1217 1218 return (0); 1219 } 1220 1221 /* 1222 * Filler function for proc/net/dev 1223 */ 1224 static int 1225 linprocfs_donetdev(PFS_FILL_ARGS) 1226 { 1227 char ifname[16]; /* XXX LINUX_IFNAMSIZ */ 1228 struct ifnet *ifp; 1229 1230 sbuf_printf(sb, "%6s|%58s|%s\n" 1231 "%6s|%58s|%58s\n", 1232 "Inter-", " Receive", " Transmit", 1233 " face", 1234 "bytes packets errs drop fifo frame compressed multicast", 1235 "bytes packets errs drop fifo colls carrier compressed"); 1236 1237 CURVNET_SET(TD_TO_VNET(curthread)); 1238 IFNET_RLOCK(); 1239 CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) { 1240 linux_ifname(ifp, ifname, sizeof ifname); 1241 sbuf_printf(sb, "%6.6s: ", ifname); 1242 sbuf_printf(sb, "%7ju %7ju %4ju %4ju %4lu %5lu %10lu %9ju ", 1243 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IBYTES), 1244 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IPACKETS), 1245 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IERRORS), 1246 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IQDROPS), 1247 /* rx_missed_errors */ 1248 0UL, /* rx_fifo_errors */ 1249 0UL, /* rx_length_errors + 1250 * rx_over_errors + 1251 * rx_crc_errors + 1252 * rx_frame_errors */ 1253 0UL, /* rx_compressed */ 1254 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_IMCASTS)); 1255 /* XXX-BZ rx only? */ 1256 sbuf_printf(sb, "%8ju %7ju %4ju %4ju %4lu %5ju %7lu %10lu\n", 1257 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OBYTES), 1258 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OPACKETS), 1259 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OERRORS), 1260 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_OQDROPS), 1261 0UL, /* tx_fifo_errors */ 1262 (uintmax_t )ifp->if_get_counter(ifp, IFCOUNTER_COLLISIONS), 1263 0UL, /* tx_carrier_errors + 1264 * tx_aborted_errors + 1265 * tx_window_errors + 1266 * tx_heartbeat_errors*/ 1267 0UL); /* tx_compressed */ 1268 } 1269 IFNET_RUNLOCK(); 1270 CURVNET_RESTORE(); 1271 1272 return (0); 1273 } 1274 1275 /* 1276 * Filler function for proc/sys/kernel/osrelease 1277 */ 1278 static int 1279 linprocfs_doosrelease(PFS_FILL_ARGS) 1280 { 1281 char osrelease[LINUX_MAX_UTSNAME]; 1282 1283 linux_get_osrelease(td, osrelease); 1284 sbuf_printf(sb, "%s\n", osrelease); 1285 1286 return (0); 1287 } 1288 1289 /* 1290 * Filler function for proc/sys/kernel/ostype 1291 */ 1292 static int 1293 linprocfs_doostype(PFS_FILL_ARGS) 1294 { 1295 char osname[LINUX_MAX_UTSNAME]; 1296 1297 linux_get_osname(td, osname); 1298 sbuf_printf(sb, "%s\n", osname); 1299 1300 return (0); 1301 } 1302 1303 /* 1304 * Filler function for proc/sys/kernel/version 1305 */ 1306 static int 1307 linprocfs_doosbuild(PFS_FILL_ARGS) 1308 { 1309 1310 linprocfs_osbuild(td, sb); 1311 sbuf_cat(sb, "\n"); 1312 return (0); 1313 } 1314 1315 /* 1316 * Filler function for proc/sys/kernel/msgmni 1317 */ 1318 static int 1319 linprocfs_domsgmni(PFS_FILL_ARGS) 1320 { 1321 1322 sbuf_printf(sb, "%d\n", msginfo.msgmni); 1323 return (0); 1324 } 1325 1326 /* 1327 * Filler function for proc/sys/kernel/pid_max 1328 */ 1329 static int 1330 linprocfs_dopid_max(PFS_FILL_ARGS) 1331 { 1332 1333 sbuf_printf(sb, "%i\n", PID_MAX); 1334 return (0); 1335 } 1336 1337 /* 1338 * Filler function for proc/sys/kernel/sem 1339 */ 1340 static int 1341 linprocfs_dosem(PFS_FILL_ARGS) 1342 { 1343 1344 sbuf_printf(sb, "%d %d %d %d\n", seminfo.semmsl, seminfo.semmns, 1345 seminfo.semopm, seminfo.semmni); 1346 return (0); 1347 } 1348 1349 /* 1350 * Filler function for proc/sys/vm/min_free_kbytes 1351 * 1352 * This mirrors the approach in illumos to return zero for reads. Effectively, 1353 * it says, no memory is kept in reserve for "atomic allocations". This class 1354 * of allocation can be used at times when a thread cannot be suspended. 1355 */ 1356 static int 1357 linprocfs_dominfree(PFS_FILL_ARGS) 1358 { 1359 1360 sbuf_printf(sb, "%d\n", 0); 1361 return (0); 1362 } 1363 1364 /* 1365 * Filler function for proc/scsi/device_info 1366 */ 1367 static int 1368 linprocfs_doscsidevinfo(PFS_FILL_ARGS) 1369 { 1370 1371 return (0); 1372 } 1373 1374 /* 1375 * Filler function for proc/scsi/scsi 1376 */ 1377 static int 1378 linprocfs_doscsiscsi(PFS_FILL_ARGS) 1379 { 1380 1381 return (0); 1382 } 1383 1384 /* 1385 * Filler function for proc/devices 1386 */ 1387 static int 1388 linprocfs_dodevices(PFS_FILL_ARGS) 1389 { 1390 char *char_devices; 1391 sbuf_printf(sb, "Character devices:\n"); 1392 1393 char_devices = linux_get_char_devices(); 1394 sbuf_printf(sb, "%s", char_devices); 1395 linux_free_get_char_devices(char_devices); 1396 1397 sbuf_printf(sb, "\nBlock devices:\n"); 1398 1399 return (0); 1400 } 1401 1402 /* 1403 * Filler function for proc/cmdline 1404 */ 1405 static int 1406 linprocfs_docmdline(PFS_FILL_ARGS) 1407 { 1408 1409 sbuf_printf(sb, "BOOT_IMAGE=%s", kernelname); 1410 sbuf_printf(sb, " ro root=302\n"); 1411 return (0); 1412 } 1413 1414 /* 1415 * Filler function for proc/filesystems 1416 */ 1417 static int 1418 linprocfs_dofilesystems(PFS_FILL_ARGS) 1419 { 1420 struct vfsconf *vfsp; 1421 1422 vfsconf_slock(); 1423 TAILQ_FOREACH(vfsp, &vfsconf, vfc_list) { 1424 if (vfsp->vfc_flags & VFCF_SYNTHETIC) 1425 sbuf_printf(sb, "nodev"); 1426 sbuf_printf(sb, "\t%s\n", vfsp->vfc_name); 1427 } 1428 vfsconf_sunlock(); 1429 return(0); 1430 } 1431 1432 #if 0 1433 /* 1434 * Filler function for proc/modules 1435 */ 1436 static int 1437 linprocfs_domodules(PFS_FILL_ARGS) 1438 { 1439 struct linker_file *lf; 1440 1441 TAILQ_FOREACH(lf, &linker_files, link) { 1442 sbuf_printf(sb, "%-20s%8lu%4d\n", lf->filename, 1443 (unsigned long)lf->size, lf->refs); 1444 } 1445 return (0); 1446 } 1447 #endif 1448 1449 /* 1450 * Filler function for proc/pid/fd 1451 */ 1452 static int 1453 linprocfs_dofdescfs(PFS_FILL_ARGS) 1454 { 1455 1456 if (p == curproc) 1457 sbuf_printf(sb, "/dev/fd"); 1458 else 1459 sbuf_printf(sb, "unknown"); 1460 return (0); 1461 } 1462 1463 /* 1464 * Filler function for proc/pid/limits 1465 */ 1466 static const struct linux_rlimit_ident { 1467 const char *desc; 1468 const char *unit; 1469 unsigned int rlim_id; 1470 } linux_rlimits_ident[] = { 1471 { "Max cpu time", "seconds", RLIMIT_CPU }, 1472 { "Max file size", "bytes", RLIMIT_FSIZE }, 1473 { "Max data size", "bytes", RLIMIT_DATA }, 1474 { "Max stack size", "bytes", RLIMIT_STACK }, 1475 { "Max core file size", "bytes", RLIMIT_CORE }, 1476 { "Max resident set", "bytes", RLIMIT_RSS }, 1477 { "Max processes", "processes", RLIMIT_NPROC }, 1478 { "Max open files", "files", RLIMIT_NOFILE }, 1479 { "Max locked memory", "bytes", RLIMIT_MEMLOCK }, 1480 { "Max address space", "bytes", RLIMIT_AS }, 1481 { "Max file locks", "locks", LINUX_RLIMIT_LOCKS }, 1482 { "Max pending signals", "signals", LINUX_RLIMIT_SIGPENDING }, 1483 { "Max msgqueue size", "bytes", LINUX_RLIMIT_MSGQUEUE }, 1484 { "Max nice priority", "", LINUX_RLIMIT_NICE }, 1485 { "Max realtime priority", "", LINUX_RLIMIT_RTPRIO }, 1486 { "Max realtime timeout", "us", LINUX_RLIMIT_RTTIME }, 1487 { 0, 0, 0 } 1488 }; 1489 1490 static int 1491 linprocfs_doproclimits(PFS_FILL_ARGS) 1492 { 1493 const struct linux_rlimit_ident *li; 1494 struct plimit *limp; 1495 struct rlimit rl; 1496 ssize_t size; 1497 int res, error; 1498 1499 error = 0; 1500 1501 PROC_LOCK(p); 1502 limp = lim_hold(p->p_limit); 1503 PROC_UNLOCK(p); 1504 size = sizeof(res); 1505 sbuf_printf(sb, "%-26s%-21s%-21s%-21s\n", "Limit", "Soft Limit", 1506 "Hard Limit", "Units"); 1507 for (li = linux_rlimits_ident; li->desc != NULL; ++li) { 1508 switch (li->rlim_id) 1509 { 1510 case LINUX_RLIMIT_LOCKS: 1511 /* FALLTHROUGH */ 1512 case LINUX_RLIMIT_RTTIME: 1513 rl.rlim_cur = RLIM_INFINITY; 1514 break; 1515 case LINUX_RLIMIT_SIGPENDING: 1516 error = kernel_sysctlbyname(td, 1517 "kern.sigqueue.max_pending_per_proc", 1518 &res, &size, 0, 0, 0, 0); 1519 if (error != 0) 1520 goto out; 1521 rl.rlim_cur = res; 1522 rl.rlim_max = res; 1523 break; 1524 case LINUX_RLIMIT_MSGQUEUE: 1525 error = kernel_sysctlbyname(td, 1526 "kern.ipc.msgmnb", &res, &size, 0, 0, 0, 0); 1527 if (error != 0) 1528 goto out; 1529 rl.rlim_cur = res; 1530 rl.rlim_max = res; 1531 break; 1532 case LINUX_RLIMIT_NICE: 1533 /* FALLTHROUGH */ 1534 case LINUX_RLIMIT_RTPRIO: 1535 rl.rlim_cur = 0; 1536 rl.rlim_max = 0; 1537 break; 1538 default: 1539 rl = limp->pl_rlimit[li->rlim_id]; 1540 break; 1541 } 1542 if (rl.rlim_cur == RLIM_INFINITY) 1543 sbuf_printf(sb, "%-26s%-21s%-21s%-10s\n", 1544 li->desc, "unlimited", "unlimited", li->unit); 1545 else 1546 sbuf_printf(sb, "%-26s%-21llu%-21llu%-10s\n", 1547 li->desc, (unsigned long long)rl.rlim_cur, 1548 (unsigned long long)rl.rlim_max, li->unit); 1549 } 1550 out: 1551 lim_free(limp); 1552 return (error); 1553 } 1554 1555 /* 1556 * Filler function for proc/sys/kernel/random/uuid 1557 */ 1558 static int 1559 linprocfs_douuid(PFS_FILL_ARGS) 1560 { 1561 struct uuid uuid; 1562 1563 kern_uuidgen(&uuid, 1); 1564 sbuf_printf_uuid(sb, &uuid); 1565 sbuf_printf(sb, "\n"); 1566 return(0); 1567 } 1568 1569 /* 1570 * Filler function for proc/pid/auxv 1571 */ 1572 static int 1573 linprocfs_doauxv(PFS_FILL_ARGS) 1574 { 1575 struct sbuf *asb; 1576 off_t buflen, resid; 1577 int error; 1578 1579 /* 1580 * Mimic linux behavior and pass only processes with usermode 1581 * address space as valid. Return zero silently otherwise. 1582 */ 1583 if (p->p_vmspace == &vmspace0) 1584 return (0); 1585 1586 if (uio->uio_resid == 0) 1587 return (0); 1588 if (uio->uio_offset < 0 || uio->uio_resid < 0) 1589 return (EINVAL); 1590 1591 asb = sbuf_new_auto(); 1592 if (asb == NULL) 1593 return (ENOMEM); 1594 error = proc_getauxv(td, p, asb); 1595 if (error == 0) 1596 error = sbuf_finish(asb); 1597 1598 resid = sbuf_len(asb) - uio->uio_offset; 1599 if (resid > uio->uio_resid) 1600 buflen = uio->uio_resid; 1601 else 1602 buflen = resid; 1603 if (buflen > IOSIZE_MAX) 1604 return (EINVAL); 1605 if (buflen > MAXPHYS) 1606 buflen = MAXPHYS; 1607 if (resid <= 0) 1608 return (0); 1609 1610 if (error == 0) 1611 error = uiomove(sbuf_data(asb) + uio->uio_offset, buflen, uio); 1612 sbuf_delete(asb); 1613 return (error); 1614 } 1615 1616 /* 1617 * Constructor 1618 */ 1619 static int 1620 linprocfs_init(PFS_INIT_ARGS) 1621 { 1622 struct pfs_node *root; 1623 struct pfs_node *dir; 1624 struct pfs_node *sys; 1625 1626 root = pi->pi_root; 1627 1628 /* /proc/... */ 1629 pfs_create_file(root, "cmdline", &linprocfs_docmdline, 1630 NULL, NULL, NULL, PFS_RD); 1631 pfs_create_file(root, "cpuinfo", &linprocfs_docpuinfo, 1632 NULL, NULL, NULL, PFS_RD); 1633 pfs_create_file(root, "devices", &linprocfs_dodevices, 1634 NULL, NULL, NULL, PFS_RD); 1635 pfs_create_file(root, "filesystems", &linprocfs_dofilesystems, 1636 NULL, NULL, NULL, PFS_RD); 1637 pfs_create_file(root, "loadavg", &linprocfs_doloadavg, 1638 NULL, NULL, NULL, PFS_RD); 1639 pfs_create_file(root, "meminfo", &linprocfs_domeminfo, 1640 NULL, NULL, NULL, PFS_RD); 1641 #if 0 1642 pfs_create_file(root, "modules", &linprocfs_domodules, 1643 NULL, NULL, NULL, PFS_RD); 1644 #endif 1645 pfs_create_file(root, "mounts", &linprocfs_domtab, 1646 NULL, NULL, NULL, PFS_RD); 1647 pfs_create_file(root, "mtab", &linprocfs_domtab, 1648 NULL, NULL, NULL, PFS_RD); 1649 pfs_create_file(root, "partitions", &linprocfs_dopartitions, 1650 NULL, NULL, NULL, PFS_RD); 1651 pfs_create_link(root, "self", &procfs_docurproc, 1652 NULL, NULL, NULL, 0); 1653 pfs_create_file(root, "stat", &linprocfs_dostat, 1654 NULL, NULL, NULL, PFS_RD); 1655 pfs_create_file(root, "swaps", &linprocfs_doswaps, 1656 NULL, NULL, NULL, PFS_RD); 1657 pfs_create_file(root, "uptime", &linprocfs_douptime, 1658 NULL, NULL, NULL, PFS_RD); 1659 pfs_create_file(root, "version", &linprocfs_doversion, 1660 NULL, NULL, NULL, PFS_RD); 1661 1662 /* /proc/net/... */ 1663 dir = pfs_create_dir(root, "net", NULL, NULL, NULL, 0); 1664 pfs_create_file(dir, "dev", &linprocfs_donetdev, 1665 NULL, NULL, NULL, PFS_RD); 1666 1667 /* /proc/<pid>/... */ 1668 dir = pfs_create_dir(root, "pid", NULL, NULL, NULL, PFS_PROCDEP); 1669 pfs_create_file(dir, "cmdline", &linprocfs_doproccmdline, 1670 NULL, NULL, NULL, PFS_RD); 1671 pfs_create_link(dir, "cwd", &linprocfs_doproccwd, 1672 NULL, NULL, NULL, 0); 1673 pfs_create_file(dir, "environ", &linprocfs_doprocenviron, 1674 NULL, &procfs_candebug, NULL, PFS_RD); 1675 pfs_create_link(dir, "exe", &procfs_doprocfile, 1676 NULL, &procfs_notsystem, NULL, 0); 1677 pfs_create_file(dir, "maps", &linprocfs_doprocmaps, 1678 NULL, NULL, NULL, PFS_RD); 1679 pfs_create_file(dir, "mem", &procfs_doprocmem, 1680 procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR | PFS_RAW); 1681 pfs_create_file(dir, "mounts", &linprocfs_domtab, 1682 NULL, NULL, NULL, PFS_RD); 1683 pfs_create_link(dir, "root", &linprocfs_doprocroot, 1684 NULL, NULL, NULL, 0); 1685 pfs_create_file(dir, "stat", &linprocfs_doprocstat, 1686 NULL, NULL, NULL, PFS_RD); 1687 pfs_create_file(dir, "statm", &linprocfs_doprocstatm, 1688 NULL, NULL, NULL, PFS_RD); 1689 pfs_create_file(dir, "status", &linprocfs_doprocstatus, 1690 NULL, NULL, NULL, PFS_RD); 1691 pfs_create_link(dir, "fd", &linprocfs_dofdescfs, 1692 NULL, NULL, NULL, 0); 1693 pfs_create_file(dir, "auxv", &linprocfs_doauxv, 1694 NULL, &procfs_candebug, NULL, PFS_RD|PFS_RAWRD); 1695 pfs_create_file(dir, "limits", &linprocfs_doproclimits, 1696 NULL, NULL, NULL, PFS_RD); 1697 1698 /* /proc/scsi/... */ 1699 dir = pfs_create_dir(root, "scsi", NULL, NULL, NULL, 0); 1700 pfs_create_file(dir, "device_info", &linprocfs_doscsidevinfo, 1701 NULL, NULL, NULL, PFS_RD); 1702 pfs_create_file(dir, "scsi", &linprocfs_doscsiscsi, 1703 NULL, NULL, NULL, PFS_RD); 1704 1705 /* /proc/sys/... */ 1706 sys = pfs_create_dir(root, "sys", NULL, NULL, NULL, 0); 1707 /* /proc/sys/kernel/... */ 1708 dir = pfs_create_dir(sys, "kernel", NULL, NULL, NULL, 0); 1709 pfs_create_file(dir, "osrelease", &linprocfs_doosrelease, 1710 NULL, NULL, NULL, PFS_RD); 1711 pfs_create_file(dir, "ostype", &linprocfs_doostype, 1712 NULL, NULL, NULL, PFS_RD); 1713 pfs_create_file(dir, "version", &linprocfs_doosbuild, 1714 NULL, NULL, NULL, PFS_RD); 1715 pfs_create_file(dir, "msgmni", &linprocfs_domsgmni, 1716 NULL, NULL, NULL, PFS_RD); 1717 pfs_create_file(dir, "pid_max", &linprocfs_dopid_max, 1718 NULL, NULL, NULL, PFS_RD); 1719 pfs_create_file(dir, "sem", &linprocfs_dosem, 1720 NULL, NULL, NULL, PFS_RD); 1721 1722 /* /proc/sys/kernel/random/... */ 1723 dir = pfs_create_dir(dir, "random", NULL, NULL, NULL, 0); 1724 pfs_create_file(dir, "uuid", &linprocfs_douuid, 1725 NULL, NULL, NULL, PFS_RD); 1726 1727 /* /proc/sys/vm/.... */ 1728 dir = pfs_create_dir(sys, "vm", NULL, NULL, NULL, 0); 1729 pfs_create_file(dir, "min_free_kbytes", &linprocfs_dominfree, 1730 NULL, NULL, NULL, PFS_RD); 1731 1732 return (0); 1733 } 1734 1735 /* 1736 * Destructor 1737 */ 1738 static int 1739 linprocfs_uninit(PFS_INIT_ARGS) 1740 { 1741 1742 /* nothing to do, pseudofs will GC */ 1743 return (0); 1744 } 1745 1746 PSEUDOFS(linprocfs, 1, VFCF_JAIL); 1747 #if defined(__aarch64__) || defined(__amd64__) 1748 MODULE_DEPEND(linprocfs, linux_common, 1, 1, 1); 1749 #else 1750 MODULE_DEPEND(linprocfs, linux, 1, 1, 1); 1751 #endif 1752 MODULE_DEPEND(linprocfs, procfs, 1, 1, 1); 1753 MODULE_DEPEND(linprocfs, sysvmsg, 1, 1, 1); 1754 MODULE_DEPEND(linprocfs, sysvsem, 1, 1, 1);
Cache object: 890ec03ad94bdbf078887afe625c92fe
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