linprocfs.c revision 164692
1/*- 2 * Copyright (c) 2000 Dag-Erling Co�dan Sm�rgrav 3 * Copyright (c) 1999 Pierre Beyssac 4 * Copyright (c) 1993 Jan-Simon Pendry 5 * Copyright (c) 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Jan-Simon Pendry. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 40 */ 41 42#include <sys/cdefs.h> 43__FBSDID("$FreeBSD: head/sys/compat/linprocfs/linprocfs.c 164692 2006-11-27 21:10:55Z jkim $"); 44 45#include <sys/param.h> 46#include <sys/queue.h> 47#include <sys/blist.h> 48#include <sys/conf.h> 49#include <sys/exec.h> 50#include <sys/filedesc.h> 51#include <sys/jail.h> 52#include <sys/kernel.h> 53#include <sys/linker.h> 54#include <sys/lock.h> 55#include <sys/malloc.h> 56#include <sys/mount.h> 57#include <sys/mutex.h> 58#include <sys/namei.h> 59#include <sys/proc.h> 60#include <sys/resourcevar.h> 61#include <sys/sbuf.h> 62#include <sys/smp.h> 63#include <sys/socket.h> 64#include <sys/sysctl.h> 65#include <sys/systm.h> 66#include <sys/time.h> 67#include <sys/tty.h> 68#include <sys/user.h> 69#include <sys/vmmeter.h> 70#include <sys/vnode.h> 71 72#include <net/if.h> 73 74#include <vm/vm.h> 75#include <vm/pmap.h> 76#include <vm/vm_map.h> 77#include <vm/vm_param.h> 78#include <vm/vm_object.h> 79#include <vm/swap_pager.h> 80 81#include <machine/clock.h> 82 83#if defined(__i386__) || defined(__amd64__) 84#include <machine/cputypes.h> 85#include <machine/md_var.h> 86#endif /* __i386__ || __amd64__ */ 87 88#include "opt_compat.h" 89#ifdef COMPAT_LINUX32 /* XXX */ 90#include <machine/../linux32/linux.h> 91#else 92#include <machine/../linux/linux.h> 93#endif 94#include <compat/linux/linux_ioctl.h> 95#include <compat/linux/linux_mib.h> 96#include <compat/linux/linux_util.h> 97#include <fs/pseudofs/pseudofs.h> 98#include <fs/procfs/procfs.h> 99 100/* 101 * Various conversion macros 102 */ 103#define T2J(x) (((x) * 100UL) / (stathz ? stathz : hz)) /* ticks to jiffies */ 104#define T2S(x) ((x) / (stathz ? stathz : hz)) /* ticks to seconds */ 105#define B2K(x) ((x) >> 10) /* bytes to kbytes */ 106#define B2P(x) ((x) >> PAGE_SHIFT) /* bytes to pages */ 107#define P2B(x) ((x) << PAGE_SHIFT) /* pages to bytes */ 108#define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* pages to kbytes */ 109 110/** 111 * @brief Mapping of ki_stat in struct kinfo_proc to the linux state 112 * 113 * The linux procfs state field displays one of the characters RSDZTW to 114 * denote running, sleeping in an interruptible wait, waiting in an 115 * uninteruptible disk sleep, a zombie process, process is being traced 116 * or stopped, or process is paging respectively. 117 * 118 * Our struct kinfo_proc contains the variable ki_stat which contains a 119 * value out of SIDL, SRUN, SSLEEP, SSTOP, SZOMB, SWAIT and SLOCK. 120 * 121 * This character array is used with ki_stati-1 as an index and tries to 122 * map our states to suitable linux states. 123 */ 124static char *linux_state = "RRSTZDD"; 125 126/* 127 * Filler function for proc/meminfo 128 */ 129static int 130linprocfs_domeminfo(PFS_FILL_ARGS) 131{ 132 unsigned long memtotal; /* total memory in bytes */ 133 unsigned long memused; /* used memory in bytes */ 134 unsigned long memfree; /* free memory in bytes */ 135 unsigned long memshared; /* shared memory ??? */ 136 unsigned long buffers, cached; /* buffer / cache memory ??? */ 137 unsigned long long swaptotal; /* total swap space in bytes */ 138 unsigned long long swapused; /* used swap space in bytes */ 139 unsigned long long swapfree; /* free swap space in bytes */ 140 vm_object_t object; 141 int i, j; 142 143 memtotal = physmem * PAGE_SIZE; 144 /* 145 * The correct thing here would be: 146 * 147 memfree = cnt.v_free_count * PAGE_SIZE; 148 memused = memtotal - memfree; 149 * 150 * but it might mislead linux binaries into thinking there 151 * is very little memory left, so we cheat and tell them that 152 * all memory that isn't wired down is free. 153 */ 154 memused = cnt.v_wire_count * PAGE_SIZE; 155 memfree = memtotal - memused; 156 swap_pager_status(&i, &j); 157 swaptotal = (unsigned long long)i * PAGE_SIZE; 158 swapused = (unsigned long long)j * PAGE_SIZE; 159 swapfree = swaptotal - swapused; 160 memshared = 0; 161 mtx_lock(&vm_object_list_mtx); 162 TAILQ_FOREACH(object, &vm_object_list, object_list) 163 if (object->shadow_count > 1) 164 memshared += object->resident_page_count; 165 mtx_unlock(&vm_object_list_mtx); 166 memshared *= PAGE_SIZE; 167 /* 168 * We'd love to be able to write: 169 * 170 buffers = bufspace; 171 * 172 * but bufspace is internal to vfs_bio.c and we don't feel 173 * like unstaticizing it just for linprocfs's sake. 174 */ 175 buffers = 0; 176 cached = cnt.v_cache_count * PAGE_SIZE; 177 178 sbuf_printf(sb, 179 " total: used: free: shared: buffers: cached:\n" 180 "Mem: %lu %lu %lu %lu %lu %lu\n" 181 "Swap: %llu %llu %llu\n" 182 "MemTotal: %9lu kB\n" 183 "MemFree: %9lu kB\n" 184 "MemShared:%9lu kB\n" 185 "Buffers: %9lu kB\n" 186 "Cached: %9lu kB\n" 187 "SwapTotal:%9llu kB\n" 188 "SwapFree: %9llu kB\n", 189 memtotal, memused, memfree, memshared, buffers, cached, 190 swaptotal, swapused, swapfree, 191 B2K(memtotal), B2K(memfree), 192 B2K(memshared), B2K(buffers), B2K(cached), 193 B2K(swaptotal), B2K(swapfree)); 194 195 return (0); 196} 197 198#if defined(__i386__) || defined(__amd64__) 199/* 200 * Filler function for proc/cpuinfo (i386 & amd64 version) 201 */ 202static int 203linprocfs_docpuinfo(PFS_FILL_ARGS) 204{ 205 int hw_model[2]; 206 char model[128]; 207 size_t size; 208 int class, fqmhz, fqkhz; 209 int i; 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", "b26", "b27", "b28", "b29", 222 "3dnowext", "3dnow" 223 }; 224 225 switch (cpu_class) { 226#ifdef __i386__ 227 case CPUCLASS_286: 228 class = 2; 229 break; 230 case CPUCLASS_386: 231 class = 3; 232 break; 233 case CPUCLASS_486: 234 class = 4; 235 break; 236 case CPUCLASS_586: 237 class = 5; 238 break; 239 case CPUCLASS_686: 240 class = 6; 241 break; 242 default: 243 class = 0; 244 break; 245#else /* __amd64__ */ 246 default: 247 class = 15; 248 break; 249#endif 250 } 251 252 hw_model[0] = CTL_HW; 253 hw_model[1] = HW_MODEL; 254 model[0] = '\0'; 255 size = sizeof(model); 256 if (kernel_sysctl(td, hw_model, 2, &model, &size, 0, 0, 0, 0) != 0) 257 strcpy(model, "unknown"); 258 for (i = 0; i < mp_ncpus; ++i) { 259 sbuf_printf(sb, 260 "processor\t: %d\n" 261 "vendor_id\t: %.20s\n" 262 "cpu family\t: %d\n" 263 "model\t\t: %d\n" 264 "model name\t: %s\n" 265 "stepping\t: %d\n", 266 i, cpu_vendor, class, cpu, model, cpu_id & 0xf); 267 /* XXX per-cpu vendor / class / model / id? */ 268 } 269 270 sbuf_cat(sb, 271 "flags\t\t:"); 272 273 if (!strcmp(cpu_vendor, "AuthenticAMD") && (class < 6)) { 274 flags[16] = "fcmov"; 275 } else if (!strcmp(cpu_vendor, "CyrixInstead")) { 276 flags[24] = "cxmmx"; 277 } 278 279 for (i = 0; i < 32; i++) 280 if (cpu_feature & (1 << i)) 281 sbuf_printf(sb, " %s", flags[i]); 282 sbuf_cat(sb, "\n"); 283 if (class >= 5) { 284 fqmhz = (tsc_freq + 4999) / 1000000; 285 fqkhz = ((tsc_freq + 4999) / 10000) % 100; 286 sbuf_printf(sb, 287 "cpu MHz\t\t: %d.%02d\n" 288 "bogomips\t: %d.%02d\n", 289 fqmhz, fqkhz, fqmhz, fqkhz); 290 } 291 292 return (0); 293} 294#endif /* __i386__ || __amd64__ */ 295 296/* 297 * Filler function for proc/mtab 298 * 299 * This file doesn't exist in Linux' procfs, but is included here so 300 * users can symlink /compat/linux/etc/mtab to /proc/mtab 301 */ 302static int 303linprocfs_domtab(PFS_FILL_ARGS) 304{ 305 struct nameidata nd; 306 struct mount *mp; 307 const char *lep; 308 char *dlep, *flep, *mntto, *mntfrom, *fstype; 309 size_t lep_len; 310 int error; 311 312 /* resolve symlinks etc. in the emulation tree prefix */ 313 NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, linux_emul_path, td); 314 flep = NULL; 315 if (namei(&nd) != 0 || vn_fullpath(td, nd.ni_vp, &dlep, &flep) != 0) 316 lep = linux_emul_path; 317 else 318 lep = dlep; 319 lep_len = strlen(lep); 320 321 mtx_lock(&mountlist_mtx); 322 error = 0; 323 TAILQ_FOREACH(mp, &mountlist, mnt_list) { 324 /* determine device name */ 325 mntfrom = mp->mnt_stat.f_mntfromname; 326 327 /* determine mount point */ 328 mntto = mp->mnt_stat.f_mntonname; 329 if (strncmp(mntto, lep, lep_len) == 0 && 330 mntto[lep_len] == '/') 331 mntto += lep_len; 332 333 /* determine fs type */ 334 fstype = mp->mnt_stat.f_fstypename; 335 if (strcmp(fstype, pn->pn_info->pi_name) == 0) 336 mntfrom = fstype = "proc"; 337 else if (strcmp(fstype, "procfs") == 0) 338 continue; 339 340 if (strcmp(fstype, "linsysfs") == 0) { 341 sbuf_printf(sb, "/sys %s sysfs %s", mntto, 342 mp->mnt_stat.f_flags & MNT_RDONLY ? "ro" : "rw"); 343 } else { 344 sbuf_printf(sb, "%s %s %s %s", mntfrom, mntto, fstype, 345 mp->mnt_stat.f_flags & MNT_RDONLY ? "ro" : "rw"); 346 } 347#define ADD_OPTION(opt, name) \ 348 if (mp->mnt_stat.f_flags & (opt)) sbuf_printf(sb, "," name); 349 ADD_OPTION(MNT_SYNCHRONOUS, "sync"); 350 ADD_OPTION(MNT_NOEXEC, "noexec"); 351 ADD_OPTION(MNT_NOSUID, "nosuid"); 352 ADD_OPTION(MNT_UNION, "union"); 353 ADD_OPTION(MNT_ASYNC, "async"); 354 ADD_OPTION(MNT_SUIDDIR, "suiddir"); 355 ADD_OPTION(MNT_NOSYMFOLLOW, "nosymfollow"); 356 ADD_OPTION(MNT_NOATIME, "noatime"); 357#undef ADD_OPTION 358 /* a real Linux mtab will also show NFS options */ 359 sbuf_printf(sb, " 0 0\n"); 360 } 361 mtx_unlock(&mountlist_mtx); 362 if (flep != NULL) 363 free(flep, M_TEMP); 364 return (error); 365} 366 367/* 368 * Filler function for proc/stat 369 */ 370static int 371linprocfs_dostat(PFS_FILL_ARGS) 372{ 373 int i; 374 375 sbuf_printf(sb, "cpu %ld %ld %ld %ld\n", 376 T2J(cp_time[CP_USER]), 377 T2J(cp_time[CP_NICE]), 378 T2J(cp_time[CP_SYS] /*+ cp_time[CP_INTR]*/), 379 T2J(cp_time[CP_IDLE])); 380 for (i = 0; i < mp_ncpus; ++i) 381 sbuf_printf(sb, "cpu%d %ld %ld %ld %ld\n", i, 382 T2J(cp_time[CP_USER]) / mp_ncpus, 383 T2J(cp_time[CP_NICE]) / mp_ncpus, 384 T2J(cp_time[CP_SYS]) / mp_ncpus, 385 T2J(cp_time[CP_IDLE]) / mp_ncpus); 386 sbuf_printf(sb, 387 "disk 0 0 0 0\n" 388 "page %u %u\n" 389 "swap %u %u\n" 390 "intr %u\n" 391 "ctxt %u\n" 392 "btime %lld\n", 393 cnt.v_vnodepgsin, 394 cnt.v_vnodepgsout, 395 cnt.v_swappgsin, 396 cnt.v_swappgsout, 397 cnt.v_intr, 398 cnt.v_swtch, 399 (long long)boottime.tv_sec); 400 return (0); 401} 402 403/* 404 * Filler function for proc/uptime 405 */ 406static int 407linprocfs_douptime(PFS_FILL_ARGS) 408{ 409 struct timeval tv; 410 411 getmicrouptime(&tv); 412 sbuf_printf(sb, "%lld.%02ld %ld.%02ld\n", 413 (long long)tv.tv_sec, tv.tv_usec / 10000, 414 T2S(cp_time[CP_IDLE]), T2J(cp_time[CP_IDLE]) % 100); 415 return (0); 416} 417 418/* 419 * Filler function for proc/version 420 */ 421static int 422linprocfs_doversion(PFS_FILL_ARGS) 423{ 424 char osname[LINUX_MAX_UTSNAME]; 425 char osrelease[LINUX_MAX_UTSNAME]; 426 427 linux_get_osname(td, osname); 428 linux_get_osrelease(td, osrelease); 429 430 sbuf_printf(sb, 431 "%s version %s (des@freebsd.org) (gcc version " __VERSION__ ")" 432 " #4 Sun Dec 18 04:30:00 CET 1977\n", osname, osrelease); 433 return (0); 434} 435 436/* 437 * Filler function for proc/loadavg 438 */ 439static int 440linprocfs_doloadavg(PFS_FILL_ARGS) 441{ 442 sbuf_printf(sb, 443 "%d.%02d %d.%02d %d.%02d %d/%d %d\n", 444 (int)(averunnable.ldavg[0] / averunnable.fscale), 445 (int)(averunnable.ldavg[0] * 100 / averunnable.fscale % 100), 446 (int)(averunnable.ldavg[1] / averunnable.fscale), 447 (int)(averunnable.ldavg[1] * 100 / averunnable.fscale % 100), 448 (int)(averunnable.ldavg[2] / averunnable.fscale), 449 (int)(averunnable.ldavg[2] * 100 / averunnable.fscale % 100), 450 1, /* number of running tasks */ 451 nprocs, /* number of tasks */ 452 lastpid /* the last pid */ 453 ); 454 455 return (0); 456} 457 458/* 459 * Filler function for proc/pid/stat 460 */ 461static int 462linprocfs_doprocstat(PFS_FILL_ARGS) 463{ 464 struct kinfo_proc kp; 465 466 PROC_LOCK(p); 467 fill_kinfo_proc(p, &kp); 468 sbuf_printf(sb, "%d", p->p_pid); 469#define PS_ADD(name, fmt, arg) sbuf_printf(sb, " " fmt, arg) 470 PS_ADD("comm", "(%s)", p->p_comm); 471 KASSERT(kp.ki_stat <= sizeof(linux_state), 472 ("linprocfs: don't know how to handle unknown FreeBSD state")); 473 PS_ADD("state", "%c", linux_state[kp.ki_stat - 1]); 474 PS_ADD("ppid", "%d", p->p_pptr ? p->p_pptr->p_pid : 0); 475 PS_ADD("pgrp", "%d", p->p_pgid); 476 PS_ADD("session", "%d", p->p_session->s_sid); 477 PROC_UNLOCK(p); 478 PS_ADD("tty", "%d", 0); /* XXX */ 479 PS_ADD("tpgid", "%d", kp.ki_tpgid); 480 PS_ADD("flags", "%u", 0); /* XXX */ 481 PS_ADD("minflt", "%lu", kp.ki_rusage.ru_minflt); 482 PS_ADD("cminflt", "%lu", kp.ki_rusage_ch.ru_minflt); 483 PS_ADD("majflt", "%lu", kp.ki_rusage.ru_majflt); 484 PS_ADD("cmajflt", "%lu", kp.ki_rusage_ch.ru_majflt); 485 PS_ADD("utime", "%ld", T2J(tvtohz(&kp.ki_rusage.ru_utime))); 486 PS_ADD("stime", "%ld", T2J(tvtohz(&kp.ki_rusage.ru_stime))); 487 PS_ADD("cutime", "%ld", T2J(tvtohz(&kp.ki_rusage_ch.ru_utime))); 488 PS_ADD("cstime", "%ld", T2J(tvtohz(&kp.ki_rusage_ch.ru_stime))); 489 PS_ADD("priority", "%d", kp.ki_pri.pri_user); 490 PS_ADD("nice", "%d", kp.ki_nice); /* 19 (nicest) to -19 */ 491 PS_ADD("0", "%d", 0); /* removed field */ 492 PS_ADD("itrealvalue", "%d", 0); /* XXX */ 493 /* XXX: starttime is not right, it is the _same_ for _every_ process. 494 It should be the number of jiffies between system boot and process 495 start. */ 496 PS_ADD("starttime", "%lu", T2J(tvtohz(&kp.ki_start))); 497 PS_ADD("vsize", "%ju", P2K((uintmax_t)kp.ki_size)); 498 PS_ADD("rss", "%ju", (uintmax_t)kp.ki_rssize); 499 PS_ADD("rlim", "%lu", kp.ki_rusage.ru_maxrss); 500 PS_ADD("startcode", "%u", (unsigned)0); 501 PS_ADD("endcode", "%u", 0); /* XXX */ 502 PS_ADD("startstack", "%u", 0); /* XXX */ 503 PS_ADD("kstkesp", "%u", 0); /* XXX */ 504 PS_ADD("kstkeip", "%u", 0); /* XXX */ 505 PS_ADD("signal", "%u", 0); /* XXX */ 506 PS_ADD("blocked", "%u", 0); /* XXX */ 507 PS_ADD("sigignore", "%u", 0); /* XXX */ 508 PS_ADD("sigcatch", "%u", 0); /* XXX */ 509 PS_ADD("wchan", "%u", 0); /* XXX */ 510 PS_ADD("nswap", "%lu", kp.ki_rusage.ru_nswap); 511 PS_ADD("cnswap", "%lu", kp.ki_rusage_ch.ru_nswap); 512 PS_ADD("exitsignal", "%d", 0); /* XXX */ 513 PS_ADD("processor", "%u", kp.ki_lastcpu); 514 PS_ADD("rt_priority", "%u", 0); /* XXX */ /* >= 2.5.19 */ 515 PS_ADD("policy", "%u", kp.ki_pri.pri_class); /* >= 2.5.19 */ 516#undef PS_ADD 517 sbuf_putc(sb, '\n'); 518 519 return (0); 520} 521 522/* 523 * Filler function for proc/pid/statm 524 */ 525static int 526linprocfs_doprocstatm(PFS_FILL_ARGS) 527{ 528 struct kinfo_proc kp; 529 segsz_t lsize; 530 531 PROC_LOCK(p); 532 fill_kinfo_proc(p, &kp); 533 PROC_UNLOCK(p); 534 535 /* 536 * See comments in linprocfs_doprocstatus() regarding the 537 * computation of lsize. 538 */ 539 /* size resident share trs drs lrs dt */ 540 sbuf_printf(sb, "%ju ", B2P((uintmax_t)kp.ki_size)); 541 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_rssize); 542 sbuf_printf(sb, "%ju ", (uintmax_t)0); /* XXX */ 543 sbuf_printf(sb, "%ju ", (uintmax_t)kp.ki_tsize); 544 sbuf_printf(sb, "%ju ", (uintmax_t)(kp.ki_dsize + kp.ki_ssize)); 545 lsize = B2P(kp.ki_size) - kp.ki_dsize - 546 kp.ki_ssize - kp.ki_tsize - 1; 547 sbuf_printf(sb, "%ju ", (uintmax_t)lsize); 548 sbuf_printf(sb, "%ju\n", (uintmax_t)0); /* XXX */ 549 550 return (0); 551} 552 553/* 554 * Filler function for proc/pid/status 555 */ 556static int 557linprocfs_doprocstatus(PFS_FILL_ARGS) 558{ 559 struct kinfo_proc kp; 560 char *state; 561 segsz_t lsize; 562 struct thread *td2; 563 struct sigacts *ps; 564 int i; 565 566 PROC_LOCK(p); 567 td2 = FIRST_THREAD_IN_PROC(p); /* XXXKSE pretend only one thread */ 568 569 if (P_SHOULDSTOP(p)) { 570 state = "T (stopped)"; 571 } else { 572 mtx_lock_spin(&sched_lock); 573 switch(p->p_state) { 574 case PRS_NEW: 575 state = "I (idle)"; 576 break; 577 case PRS_NORMAL: 578 if (p->p_flag & P_WEXIT) { 579 state = "X (exiting)"; 580 break; 581 } 582 switch(td2->td_state) { 583 case TDS_INHIBITED: 584 state = "S (sleeping)"; 585 break; 586 case TDS_RUNQ: 587 case TDS_RUNNING: 588 state = "R (running)"; 589 break; 590 default: 591 state = "? (unknown)"; 592 break; 593 } 594 break; 595 case PRS_ZOMBIE: 596 state = "Z (zombie)"; 597 break; 598 default: 599 state = "? (unknown)"; 600 break; 601 } 602 mtx_unlock_spin(&sched_lock); 603 } 604 605 fill_kinfo_proc(p, &kp); 606 sbuf_printf(sb, "Name:\t%s\n", p->p_comm); /* XXX escape */ 607 sbuf_printf(sb, "State:\t%s\n", state); 608 609 /* 610 * Credentials 611 */ 612 sbuf_printf(sb, "Pid:\t%d\n", p->p_pid); 613 sbuf_printf(sb, "PPid:\t%d\n", p->p_pptr ? 614 p->p_pptr->p_pid : 0); 615 sbuf_printf(sb, "Uid:\t%d %d %d %d\n", p->p_ucred->cr_ruid, 616 p->p_ucred->cr_uid, 617 p->p_ucred->cr_svuid, 618 /* FreeBSD doesn't have fsuid */ 619 p->p_ucred->cr_uid); 620 sbuf_printf(sb, "Gid:\t%d %d %d %d\n", p->p_ucred->cr_rgid, 621 p->p_ucred->cr_gid, 622 p->p_ucred->cr_svgid, 623 /* FreeBSD doesn't have fsgid */ 624 p->p_ucred->cr_gid); 625 sbuf_cat(sb, "Groups:\t"); 626 for (i = 0; i < p->p_ucred->cr_ngroups; i++) 627 sbuf_printf(sb, "%d ", p->p_ucred->cr_groups[i]); 628 PROC_UNLOCK(p); 629 sbuf_putc(sb, '\n'); 630 631 /* 632 * Memory 633 * 634 * While our approximation of VmLib may not be accurate (I 635 * don't know of a simple way to verify it, and I'm not sure 636 * it has much meaning anyway), I believe it's good enough. 637 * 638 * The same code that could (I think) accurately compute VmLib 639 * could also compute VmLck, but I don't really care enough to 640 * implement it. Submissions are welcome. 641 */ 642 sbuf_printf(sb, "VmSize:\t%8ju kB\n", B2K((uintmax_t)kp.ki_size)); 643 sbuf_printf(sb, "VmLck:\t%8u kB\n", P2K(0)); /* XXX */ 644 sbuf_printf(sb, "VmRss:\t%8ju kB\n", P2K((uintmax_t)kp.ki_rssize)); 645 sbuf_printf(sb, "VmData:\t%8ju kB\n", P2K((uintmax_t)kp.ki_dsize)); 646 sbuf_printf(sb, "VmStk:\t%8ju kB\n", P2K((uintmax_t)kp.ki_ssize)); 647 sbuf_printf(sb, "VmExe:\t%8ju kB\n", P2K((uintmax_t)kp.ki_tsize)); 648 lsize = B2P(kp.ki_size) - kp.ki_dsize - 649 kp.ki_ssize - kp.ki_tsize - 1; 650 sbuf_printf(sb, "VmLib:\t%8ju kB\n", P2K((uintmax_t)lsize)); 651 652 /* 653 * Signal masks 654 * 655 * We support up to 128 signals, while Linux supports 32, 656 * but we only define 32 (the same 32 as Linux, to boot), so 657 * just show the lower 32 bits of each mask. XXX hack. 658 * 659 * NB: on certain platforms (Sparc at least) Linux actually 660 * supports 64 signals, but this code is a long way from 661 * running on anything but i386, so ignore that for now. 662 */ 663 PROC_LOCK(p); 664 sbuf_printf(sb, "SigPnd:\t%08x\n", p->p_siglist.__bits[0]); 665 /* 666 * I can't seem to find out where the signal mask is in 667 * relation to struct proc, so SigBlk is left unimplemented. 668 */ 669 sbuf_printf(sb, "SigBlk:\t%08x\n", 0); /* XXX */ 670 ps = p->p_sigacts; 671 mtx_lock(&ps->ps_mtx); 672 sbuf_printf(sb, "SigIgn:\t%08x\n", ps->ps_sigignore.__bits[0]); 673 sbuf_printf(sb, "SigCgt:\t%08x\n", ps->ps_sigcatch.__bits[0]); 674 mtx_unlock(&ps->ps_mtx); 675 PROC_UNLOCK(p); 676 677 /* 678 * Linux also prints the capability masks, but we don't have 679 * capabilities yet, and when we do get them they're likely to 680 * be meaningless to Linux programs, so we lie. XXX 681 */ 682 sbuf_printf(sb, "CapInh:\t%016x\n", 0); 683 sbuf_printf(sb, "CapPrm:\t%016x\n", 0); 684 sbuf_printf(sb, "CapEff:\t%016x\n", 0); 685 686 return (0); 687} 688 689 690/* 691 * Filler function for proc/pid/cwd 692 */ 693static int 694linprocfs_doproccwd(PFS_FILL_ARGS) 695{ 696 char *fullpath = "unknown"; 697 char *freepath = NULL; 698 699 vn_fullpath(td, p->p_fd->fd_cdir, &fullpath, &freepath); 700 sbuf_printf(sb, "%s", fullpath); 701 if (freepath) 702 free(freepath, M_TEMP); 703 return (0); 704} 705 706/* 707 * Filler function for proc/pid/root 708 */ 709static int 710linprocfs_doprocroot(PFS_FILL_ARGS) 711{ 712 struct vnode *rvp; 713 char *fullpath = "unknown"; 714 char *freepath = NULL; 715 716 rvp = jailed(p->p_ucred) ? p->p_fd->fd_jdir : p->p_fd->fd_rdir; 717 vn_fullpath(td, rvp, &fullpath, &freepath); 718 sbuf_printf(sb, "%s", fullpath); 719 if (freepath) 720 free(freepath, M_TEMP); 721 return (0); 722} 723 724/* 725 * Filler function for proc/pid/cmdline 726 */ 727static int 728linprocfs_doproccmdline(PFS_FILL_ARGS) 729{ 730 struct ps_strings pstr; 731 char **ps_argvstr; 732 int error, i; 733 734 /* 735 * If we are using the ps/cmdline caching, use that. Otherwise 736 * revert back to the old way which only implements full cmdline 737 * for the currept process and just p->p_comm for all other 738 * processes. 739 * Note that if the argv is no longer available, we deliberately 740 * don't fall back on p->p_comm or return an error: the authentic 741 * Linux behaviour is to return zero-length in this case. 742 */ 743 744 PROC_LOCK(p); 745 if (p->p_args && p_cansee(td, p) == 0) { 746 sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length); 747 PROC_UNLOCK(p); 748 } else if (p != td->td_proc) { 749 PROC_UNLOCK(p); 750 sbuf_printf(sb, "%.*s", MAXCOMLEN, p->p_comm); 751 } else { 752 PROC_UNLOCK(p); 753 error = copyin((void *)p->p_sysent->sv_psstrings, &pstr, 754 sizeof(pstr)); 755 if (error) 756 return (error); 757 if (pstr.ps_nargvstr > ARG_MAX) 758 return (E2BIG); 759 ps_argvstr = malloc(pstr.ps_nargvstr * sizeof(char *), 760 M_TEMP, M_WAITOK); 761 error = copyin((void *)pstr.ps_argvstr, ps_argvstr, 762 pstr.ps_nargvstr * sizeof(char *)); 763 if (error) { 764 free(ps_argvstr, M_TEMP); 765 return (error); 766 } 767 for (i = 0; i < pstr.ps_nargvstr; i++) { 768 sbuf_copyin(sb, ps_argvstr[i], 0); 769 sbuf_printf(sb, "%c", '\0'); 770 } 771 free(ps_argvstr, M_TEMP); 772 } 773 774 return (0); 775} 776 777/* 778 * Filler function for proc/pid/environ 779 */ 780static int 781linprocfs_doprocenviron(PFS_FILL_ARGS) 782{ 783 sbuf_printf(sb, "doprocenviron\n%c", '\0'); 784 785 return (0); 786} 787 788/* 789 * Filler function for proc/pid/maps 790 */ 791static int 792linprocfs_doprocmaps(PFS_FILL_ARGS) 793{ 794 char mebuffer[512]; 795 vm_map_t map = &p->p_vmspace->vm_map; 796 vm_map_entry_t entry; 797 vm_object_t obj, tobj, lobj; 798 vm_ooffset_t off = 0; 799 char *name = "", *freename = NULL; 800 size_t len; 801 ino_t ino; 802 int ref_count, shadow_count, flags; 803 int error; 804 struct vnode *vp; 805 struct vattr vat; 806 int locked; 807 808 PROC_LOCK(p); 809 error = p_candebug(td, p); 810 PROC_UNLOCK(p); 811 if (error) 812 return (error); 813 814 if (uio->uio_rw != UIO_READ) 815 return (EOPNOTSUPP); 816 817 if (uio->uio_offset != 0) 818 return (0); 819 820 error = 0; 821 if (map != &curthread->td_proc->p_vmspace->vm_map) 822 vm_map_lock_read(map); 823 for (entry = map->header.next; 824 ((uio->uio_resid > 0) && (entry != &map->header)); 825 entry = entry->next) { 826 name = ""; 827 freename = NULL; 828 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) 829 continue; 830 obj = entry->object.vm_object; 831 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) 832 lobj = tobj; 833 ino = 0; 834 if (lobj) { 835 VM_OBJECT_LOCK(lobj); 836 off = IDX_TO_OFF(lobj->size); 837 if (lobj->type == OBJT_VNODE) { 838 vp = lobj->handle; 839 if (vp) 840 vref(vp); 841 } 842 else 843 vp = NULL; 844 flags = obj->flags; 845 ref_count = obj->ref_count; 846 shadow_count = obj->shadow_count; 847 VM_OBJECT_UNLOCK(lobj); 848 if (vp) { 849 vn_fullpath(td, vp, &name, &freename); 850 locked = VFS_LOCK_GIANT(vp->v_mount); 851 vn_lock(vp, LK_SHARED | LK_RETRY, td); 852 VOP_GETATTR(vp, &vat, td->td_ucred, td); 853 ino = vat.va_fileid; 854 vput(vp); 855 VFS_UNLOCK_GIANT(locked); 856 } 857 } else { 858 flags = 0; 859 ref_count = 0; 860 shadow_count = 0; 861 } 862 863 /* 864 * format: 865 * start, end, access, offset, major, minor, inode, name. 866 */ 867 snprintf(mebuffer, sizeof mebuffer, 868 "%08lx-%08lx %s%s%s%s %08lx %02x:%02x %lu%s%s\n", 869 (u_long)entry->start, (u_long)entry->end, 870 (entry->protection & VM_PROT_READ)?"r":"-", 871 (entry->protection & VM_PROT_WRITE)?"w":"-", 872 (entry->protection & VM_PROT_EXECUTE)?"x":"-", 873 "p", 874 (u_long)off, 875 0, 876 0, 877 (u_long)ino, 878 *name ? " " : "", 879 name 880 ); 881 if (freename) 882 free(freename, M_TEMP); 883 len = strlen(mebuffer); 884 if (len > uio->uio_resid) 885 len = uio->uio_resid; /* 886 * XXX We should probably return 887 * EFBIG here, as in procfs. 888 */ 889 error = uiomove(mebuffer, len, uio); 890 if (error) 891 break; 892 } 893 if (map != &curthread->td_proc->p_vmspace->vm_map) 894 vm_map_unlock_read(map); 895 896 return (error); 897} 898 899/* 900 * Filler function for proc/net/dev 901 */ 902static int 903linprocfs_donetdev(PFS_FILL_ARGS) 904{ 905 char ifname[16]; /* XXX LINUX_IFNAMSIZ */ 906 struct ifnet *ifp; 907 908 sbuf_printf(sb, "%6s|%58s|%s\n%6s|%58s|%58s\n", 909 "Inter-", " Receive", " Transmit", " face", 910 "bytes packets errs drop fifo frame compressed", 911 "bytes packets errs drop fifo frame compressed"); 912 913 IFNET_RLOCK(); 914 TAILQ_FOREACH(ifp, &ifnet, if_link) { 915 linux_ifname(ifp, ifname, sizeof ifname); 916 sbuf_printf(sb, "%6.6s:", ifname); 917 sbuf_printf(sb, "%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu ", 918 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL); 919 sbuf_printf(sb, "%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n", 920 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL); 921 } 922 IFNET_RUNLOCK(); 923 924 return (0); 925} 926 927/* 928 * Filler function for proc/sys/kernel/msgmni 929 */ 930static int 931linprocfs_domsgmni(PFS_FILL_ARGS) 932{ 933 int msgmni; 934 size_t size; 935 936 size = sizeof(msgmni); 937 if (kernel_sysctlbyname(td, "kern.ipc.msgmni", &msgmni, &size, 938 0, 0, 0, 0) != 0) 939 msgmni = 0; 940 sbuf_printf(sb, "%i\n", msgmni); 941 942 return (0); 943} 944 945/* 946 * Filler function for proc/sys/kernel/pid_max 947 */ 948static int 949linprocfs_dopid_max(PFS_FILL_ARGS) 950{ 951 952 sbuf_printf(sb, "%i\n", PID_MAX); 953 954 return (0); 955} 956 957/* 958 * Filler function for proc/sys/kernel/sem 959 */ 960static int 961linprocfs_dosem(PFS_FILL_ARGS) 962{ 963 int semmsl, semmns, semopm, semmni; 964 size_t size; 965 966 /* Field 1: SEMMSL */ 967 size = sizeof(semmsl); 968 if (kernel_sysctlbyname(td, "kern.ipc.semmsl", &semmsl, &size, 969 0, 0, 0, 0) != 0) 970 semmsl = 0; 971 972 /* Field 2: SEMMNS */ 973 size = sizeof(semmns); 974 if (kernel_sysctlbyname(td, "kern.ipc.semmns", &semmns, &size, 975 0, 0, 0, 0) != 0) 976 semmns = 0; 977 978 /* Field 3: SEMOPM */ 979 size = sizeof(semopm); 980 if (kernel_sysctlbyname(td, "kern.ipc.semopm", &semopm, &size, 981 0, 0, 0, 0) != 0) 982 semopm = 0; 983 984 /* Field 4: SEMMNI */ 985 size = sizeof(semmni); 986 if (kernel_sysctlbyname(td, "kern.ipc.semmni", &semmni, &size, 987 0, 0, 0, 0) != 0) 988 semmni = 0; 989 990 sbuf_printf(sb, "%i %i %i %i\n", semmsl, semmns, semopm, semmni); 991 992 return (0); 993} 994 995/* 996 * Filler function for proc/scsi/device_info 997 */ 998static int 999linprocfs_doscsidevinfo(PFS_FILL_ARGS) 1000{ 1001 return (0); 1002} 1003 1004/* 1005 * Filler function for proc/scsi/scsi 1006 */ 1007static int 1008linprocfs_doscsiscsi(PFS_FILL_ARGS) 1009{ 1010 return (0); 1011} 1012 1013extern struct cdevsw *cdevsw[]; 1014 1015/* 1016 * Filler function for proc/devices 1017 */ 1018static int 1019linprocfs_dodevices(PFS_FILL_ARGS) 1020{ 1021 char *char_devices; 1022 sbuf_printf(sb, "Character devices:\n"); 1023 1024 char_devices = linux_get_char_devices(); 1025 sbuf_printf(sb, "%s", char_devices); 1026 linux_free_get_char_devices(char_devices); 1027 1028 sbuf_printf(sb, "\nBlock devices:\n"); 1029 1030 return (0); 1031} 1032 1033/* 1034 * Filler function for proc/cmdline 1035 */ 1036static int 1037linprocfs_docmdline(PFS_FILL_ARGS) 1038{ 1039 sbuf_printf(sb, "BOOT_IMAGE=%s", kernelname); 1040 sbuf_printf(sb, " ro root=302\n"); 1041 return (0); 1042} 1043 1044#if 0 1045/* 1046 * Filler function for proc/modules 1047 */ 1048static int 1049linprocfs_domodules(PFS_FILL_ARGS) 1050{ 1051 struct linker_file *lf; 1052 1053 TAILQ_FOREACH(lf, &linker_files, link) { 1054 sbuf_printf(sb, "%-20s%8lu%4d\n", lf->filename, 1055 (unsigned long)lf->size, lf->refs); 1056 } 1057 return (0); 1058} 1059#endif 1060 1061/* 1062 * Constructor 1063 */ 1064static int 1065linprocfs_init(PFS_INIT_ARGS) 1066{ 1067 struct pfs_node *root; 1068 struct pfs_node *dir; 1069 1070 root = pi->pi_root; 1071 1072 /* /proc/... */ 1073 pfs_create_file(root, "cmdline", &linprocfs_docmdline, 1074 NULL, NULL, PFS_RD); 1075 pfs_create_file(root, "cpuinfo", &linprocfs_docpuinfo, 1076 NULL, NULL, PFS_RD); 1077 pfs_create_file(root, "devices", &linprocfs_dodevices, 1078 NULL, NULL, PFS_RD); 1079 pfs_create_file(root, "loadavg", &linprocfs_doloadavg, 1080 NULL, NULL, PFS_RD); 1081 pfs_create_file(root, "meminfo", &linprocfs_domeminfo, 1082 NULL, NULL, PFS_RD); 1083#if 0 1084 pfs_create_file(root, "modules", &linprocfs_domodules, 1085 NULL, NULL, PFS_RD); 1086#endif 1087 pfs_create_file(root, "mounts", &linprocfs_domtab, 1088 NULL, NULL, PFS_RD); 1089 pfs_create_file(root, "mtab", &linprocfs_domtab, 1090 NULL, NULL, PFS_RD); 1091 pfs_create_link(root, "self", &procfs_docurproc, 1092 NULL, NULL, 0); 1093 pfs_create_file(root, "stat", &linprocfs_dostat, 1094 NULL, NULL, PFS_RD); 1095 pfs_create_file(root, "uptime", &linprocfs_douptime, 1096 NULL, NULL, PFS_RD); 1097 pfs_create_file(root, "version", &linprocfs_doversion, 1098 NULL, NULL, PFS_RD); 1099 1100 /* /proc/net/... */ 1101 dir = pfs_create_dir(root, "net", NULL, NULL, 0); 1102 pfs_create_file(dir, "dev", &linprocfs_donetdev, 1103 NULL, NULL, PFS_RD); 1104 1105 /* /proc/<pid>/... */ 1106 dir = pfs_create_dir(root, "pid", NULL, NULL, PFS_PROCDEP); 1107 pfs_create_file(dir, "cmdline", &linprocfs_doproccmdline, 1108 NULL, NULL, PFS_RD); 1109 pfs_create_link(dir, "cwd", &linprocfs_doproccwd, 1110 NULL, NULL, 0); 1111 pfs_create_file(dir, "environ", &linprocfs_doprocenviron, 1112 NULL, NULL, PFS_RD); 1113 pfs_create_link(dir, "exe", &procfs_doprocfile, 1114 NULL, &procfs_notsystem, 0); 1115 pfs_create_file(dir, "maps", &linprocfs_doprocmaps, 1116 NULL, NULL, PFS_RD); 1117 pfs_create_file(dir, "mem", &procfs_doprocmem, 1118 &procfs_attr, &procfs_candebug, PFS_RDWR|PFS_RAW); 1119 pfs_create_link(dir, "root", &linprocfs_doprocroot, 1120 NULL, NULL, 0); 1121 pfs_create_file(dir, "stat", &linprocfs_doprocstat, 1122 NULL, NULL, PFS_RD); 1123 pfs_create_file(dir, "statm", &linprocfs_doprocstatm, 1124 NULL, NULL, PFS_RD); 1125 pfs_create_file(dir, "status", &linprocfs_doprocstatus, 1126 NULL, NULL, PFS_RD); 1127 1128 /* /proc/scsi/... */ 1129 dir = pfs_create_dir(root, "scsi", NULL, NULL, 0); 1130 pfs_create_file(dir, "device_info", &linprocfs_doscsidevinfo, 1131 NULL, NULL, PFS_RD); 1132 pfs_create_file(dir, "scsi", &linprocfs_doscsiscsi, 1133 NULL, NULL, PFS_RD); 1134 1135 /* /proc/sys/... */ 1136 dir = pfs_create_dir(root, "sys", NULL, NULL, 0); 1137 /* /proc/sys/kernel/... */ 1138 dir = pfs_create_dir(dir, "kernel", NULL, NULL, 0); 1139 pfs_create_file(dir, "msgmni", &linprocfs_domsgmni, 1140 NULL, NULL, PFS_RD); 1141 pfs_create_file(dir, "pid_max", &linprocfs_dopid_max, 1142 NULL, NULL, PFS_RD); 1143 pfs_create_file(dir, "sem", &linprocfs_dosem, 1144 NULL, NULL, PFS_RD); 1145 1146 return (0); 1147} 1148 1149/* 1150 * Destructor 1151 */ 1152static int 1153linprocfs_uninit(PFS_INIT_ARGS) 1154{ 1155 1156 /* nothing to do, pseudofs will GC */ 1157 return (0); 1158} 1159 1160PSEUDOFS(linprocfs, 1); 1161MODULE_DEPEND(linprocfs, linux, 1, 1, 1); 1162MODULE_DEPEND(linprocfs, procfs, 1, 1, 1); 1163