19454b2d8SWarner Losh /*- 2df8bae1dSRodney W. Grimes * Copyright (c) 1982, 1986, 1989, 1991, 1993 3df8bae1dSRodney W. Grimes * The Regents of the University of California. All rights reserved. 4df8bae1dSRodney W. Grimes * 5df8bae1dSRodney W. Grimes * Redistribution and use in source and binary forms, with or without 6df8bae1dSRodney W. Grimes * modification, are permitted provided that the following conditions 7df8bae1dSRodney W. Grimes * are met: 8df8bae1dSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 9df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer. 10df8bae1dSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 11df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 12df8bae1dSRodney W. Grimes * documentation and/or other materials provided with the distribution. 13df8bae1dSRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 14df8bae1dSRodney W. Grimes * may be used to endorse or promote products derived from this software 15df8bae1dSRodney W. Grimes * without specific prior written permission. 16df8bae1dSRodney W. Grimes * 17df8bae1dSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18df8bae1dSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19df8bae1dSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20df8bae1dSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21df8bae1dSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22df8bae1dSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23df8bae1dSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24df8bae1dSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25df8bae1dSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26df8bae1dSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27df8bae1dSRodney W. Grimes * SUCH DAMAGE. 28df8bae1dSRodney W. Grimes * 29b75356e1SJeffrey Hsu * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95 30df8bae1dSRodney W. Grimes */ 31df8bae1dSRodney W. Grimes 32677b542eSDavid E. O'Brien #include <sys/cdefs.h> 33677b542eSDavid E. O'Brien __FBSDID("$FreeBSD$"); 34677b542eSDavid E. O'Brien 3543151ee6SPeter Wemm #include "opt_compat.h" 36cc43c38cSRobert Watson #include "opt_ddb.h" 376c84de02SJohn Baldwin #include "opt_ktrace.h" 38b9f009b0SPeter Wemm #include "opt_kstack_pages.h" 391cc8c45cSRobert Watson #include "opt_stack.h" 406c84de02SJohn Baldwin 41df8bae1dSRodney W. Grimes #include <sys/param.h> 42df8bae1dSRodney W. Grimes #include <sys/systm.h> 43c5cfcb1cSMikolaj Golub #include <sys/elf.h> 44c5cfcb1cSMikolaj Golub #include <sys/exec.h> 45df8bae1dSRodney W. Grimes #include <sys/kernel.h> 4605e06d11SKonstantin Belousov #include <sys/limits.h> 47fb919e4dSMark Murray #include <sys/lock.h> 487123f4cdSEdward Tomasz Napierala #include <sys/loginclass.h> 49df8bae1dSRodney W. Grimes #include <sys/malloc.h> 505384d089SMikolaj Golub #include <sys/mman.h> 51cc43c38cSRobert Watson #include <sys/mount.h> 52fb919e4dSMark Murray #include <sys/mutex.h> 53b9df5231SPoul-Henning Kamp #include <sys/proc.h> 54c5cfcb1cSMikolaj Golub #include <sys/ptrace.h> 5555b4a5aeSJohn Baldwin #include <sys/refcount.h> 569e7d0583SMikolaj Golub #include <sys/resourcevar.h> 5789f6b863SAttilio Rao #include <sys/rwlock.h> 58cc43c38cSRobert Watson #include <sys/sbuf.h> 59baf731e6SRobert Drehmel #include <sys/sysent.h> 60de028f5aSJeff Roberson #include <sys/sched.h> 61165d2b99SJulian Elischer #include <sys/smp.h> 621cc8c45cSRobert Watson #include <sys/stack.h> 636ce13747SMikolaj Golub #include <sys/stat.h> 64fb919e4dSMark Murray #include <sys/sysctl.h> 6562d6ce3aSDon Lewis #include <sys/filedesc.h> 66df8bae1dSRodney W. Grimes #include <sys/tty.h> 67bb56ec4aSPoul-Henning Kamp #include <sys/signalvar.h> 685d217f17SJohn Birrell #include <sys/sdt.h> 691005a129SJohn Baldwin #include <sys/sx.h> 70fb919e4dSMark Murray #include <sys/user.h> 71fb919e4dSMark Murray #include <sys/jail.h> 72fe769cddSDavid Schultz #include <sys/vnode.h> 734a62a3e5SRandall Stewart #include <sys/eventhandler.h> 74fb919e4dSMark Murray 75cc43c38cSRobert Watson #ifdef DDB 76cc43c38cSRobert Watson #include <ddb/ddb.h> 77cc43c38cSRobert Watson #endif 78cc43c38cSRobert Watson 79efeaf95aSDavid Greenman #include <vm/vm.h> 801c771f92SKonstantin Belousov #include <vm/vm_param.h> 81a136efe9SPeter Wemm #include <vm/vm_extern.h> 82efeaf95aSDavid Greenman #include <vm/pmap.h> 83efeaf95aSDavid Greenman #include <vm/vm_map.h> 84cc43c38cSRobert Watson #include <vm/vm_object.h> 855384d089SMikolaj Golub #include <vm/vm_page.h> 86c897b813SJeff Roberson #include <vm/uma.h> 87df8bae1dSRodney W. Grimes 8805e06d11SKonstantin Belousov #ifdef COMPAT_FREEBSD32 8905e06d11SKonstantin Belousov #include <compat/freebsd32/freebsd32.h> 9005e06d11SKonstantin Belousov #include <compat/freebsd32/freebsd32_util.h> 9105e06d11SKonstantin Belousov #endif 9205e06d11SKonstantin Belousov 935d217f17SJohn Birrell SDT_PROVIDER_DEFINE(proc); 94d9fae5abSAndriy Gapon SDT_PROBE_DEFINE4(proc, kernel, ctor, entry, "struct proc *", "int", 957b77e1feSMark Johnston "void *", "int"); 96d9fae5abSAndriy Gapon SDT_PROBE_DEFINE4(proc, kernel, ctor, return, "struct proc *", "int", 977b77e1feSMark Johnston "void *", "int"); 98d9fae5abSAndriy Gapon SDT_PROBE_DEFINE4(proc, kernel, dtor, entry, "struct proc *", "int", 997b77e1feSMark Johnston "void *", "struct thread *"); 100d9fae5abSAndriy Gapon SDT_PROBE_DEFINE3(proc, kernel, dtor, return, "struct proc *", "int", 1017b77e1feSMark Johnston "void *"); 102d9fae5abSAndriy Gapon SDT_PROBE_DEFINE3(proc, kernel, init, entry, "struct proc *", "int", 1037b77e1feSMark Johnston "int"); 104d9fae5abSAndriy Gapon SDT_PROBE_DEFINE3(proc, kernel, init, return, "struct proc *", "int", 1057b77e1feSMark Johnston "int"); 1065d217f17SJohn Birrell 107f591779bSSeigo Tanimura MALLOC_DEFINE(M_PGRP, "pgrp", "process group header"); 108a1c995b6SPoul-Henning Kamp MALLOC_DEFINE(M_SESSION, "session", "session header"); 109876a94eeSBruce Evans static MALLOC_DEFINE(M_PROC, "proc", "Proc structures"); 110a1c995b6SPoul-Henning Kamp MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures"); 11155166637SPoul-Henning Kamp 1124d77a549SAlfred Perlstein static void doenterpgrp(struct proc *, struct pgrp *); 1134d77a549SAlfred Perlstein static void orphanpg(struct pgrp *pg); 114f8d90480SAttilio Rao static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp); 1155032ff81SDon Lewis static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp); 116d92909c1SRobert Watson static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, 117d92909c1SRobert Watson int preferthread); 11802e878d9SJohn Baldwin static void pgadjustjobc(struct pgrp *pgrp, int entering); 11902e878d9SJohn Baldwin static void pgdelete(struct pgrp *); 120b23f72e9SBrian Feldman static int proc_ctor(void *mem, int size, void *arg, int flags); 121a136efe9SPeter Wemm static void proc_dtor(void *mem, int size, void *arg); 122b23f72e9SBrian Feldman static int proc_init(void *mem, int size, int flags); 123a136efe9SPeter Wemm static void proc_fini(void *mem, int size); 12458e8af1bSKonstantin Belousov static void pargs_free(struct pargs *pa); 125134eb42eSKonstantin Belousov static struct proc *zpfind_locked(pid_t pid); 126a136efe9SPeter Wemm 127df8bae1dSRodney W. Grimes /* 128b75356e1SJeffrey Hsu * Other process lists 129b75356e1SJeffrey Hsu */ 130b75356e1SJeffrey Hsu struct pidhashhead *pidhashtbl; 131b75356e1SJeffrey Hsu u_long pidhash; 132b75356e1SJeffrey Hsu struct pgrphashhead *pgrphashtbl; 133b75356e1SJeffrey Hsu u_long pgrphash; 134b75356e1SJeffrey Hsu struct proclist allproc; 135b75356e1SJeffrey Hsu struct proclist zombproc; 1361005a129SJohn Baldwin struct sx allproc_lock; 1371005a129SJohn Baldwin struct sx proctree_lock; 138c6544064SJohn Baldwin struct mtx ppeers_lock; 139c897b813SJeff Roberson uma_zone_t proc_zone; 140b75356e1SJeffrey Hsu 141b9f009b0SPeter Wemm int kstack_pages = KSTACK_PAGES; 142b389be97SRebecca Cran SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0, 143b389be97SRebecca Cran "Kernel stack size in pages"); 144a91831a2SKonstantin Belousov static int vmmap_skip_res_cnt = 0; 145a91831a2SKonstantin Belousov SYSCTL_INT(_kern, OID_AUTO, proc_vmmap_skip_resident_count, CTLFLAG_RW, 146a91831a2SKonstantin Belousov &vmmap_skip_res_cnt, 0, 147a91831a2SKonstantin Belousov "Skip calculation of the pages resident count in kern.proc.vmmap"); 148b9f009b0SPeter Wemm 149a30d7c60SJake Burkholder CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE); 150ed780687SKonstantin Belousov #ifdef COMPAT_FREEBSD32 151ed780687SKonstantin Belousov CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE); 152ed780687SKonstantin Belousov #endif 153a30d7c60SJake Burkholder 154b75356e1SJeffrey Hsu /* 155b75356e1SJeffrey Hsu * Initialize global process hashing structures. 156df8bae1dSRodney W. Grimes */ 15726f9a767SRodney W. Grimes void 158b75356e1SJeffrey Hsu procinit() 159df8bae1dSRodney W. Grimes { 160df8bae1dSRodney W. Grimes 1611005a129SJohn Baldwin sx_init(&allproc_lock, "allproc"); 1621005a129SJohn Baldwin sx_init(&proctree_lock, "proctree"); 163c6544064SJohn Baldwin mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF); 164b75356e1SJeffrey Hsu LIST_INIT(&allproc); 165b75356e1SJeffrey Hsu LIST_INIT(&zombproc); 166b75356e1SJeffrey Hsu pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash); 167b75356e1SJeffrey Hsu pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash); 168de028f5aSJeff Roberson proc_zone = uma_zcreate("PROC", sched_sizeof_proc(), 169a136efe9SPeter Wemm proc_ctor, proc_dtor, proc_init, proc_fini, 170a136efe9SPeter Wemm UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 171f535380cSDon Lewis uihashinit(); 172df8bae1dSRodney W. Grimes } 173df8bae1dSRodney W. Grimes 174df8bae1dSRodney W. Grimes /* 175a136efe9SPeter Wemm * Prepare a proc for use. 176a136efe9SPeter Wemm */ 177b23f72e9SBrian Feldman static int 178b23f72e9SBrian Feldman proc_ctor(void *mem, int size, void *arg, int flags) 179a136efe9SPeter Wemm { 180a136efe9SPeter Wemm struct proc *p; 181a136efe9SPeter Wemm 182a136efe9SPeter Wemm p = (struct proc *)mem; 1835d217f17SJohn Birrell SDT_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0); 1844a62a3e5SRandall Stewart EVENTHANDLER_INVOKE(process_ctor, p); 1855d217f17SJohn Birrell SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0); 186b23f72e9SBrian Feldman return (0); 187a136efe9SPeter Wemm } 188a136efe9SPeter Wemm 189a136efe9SPeter Wemm /* 190a136efe9SPeter Wemm * Reclaim a proc after use. 191a136efe9SPeter Wemm */ 192a136efe9SPeter Wemm static void 193a136efe9SPeter Wemm proc_dtor(void *mem, int size, void *arg) 194a136efe9SPeter Wemm { 195a136efe9SPeter Wemm struct proc *p; 1961faf202eSJulian Elischer struct thread *td; 197a136efe9SPeter Wemm 1981faf202eSJulian Elischer /* INVARIANTS checks go here */ 199a136efe9SPeter Wemm p = (struct proc *)mem; 200ed062c8dSJulian Elischer td = FIRST_THREAD_IN_PROC(p); 2015d217f17SJohn Birrell SDT_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0); 20289b57fcfSKonstantin Belousov if (td != NULL) { 203ed062c8dSJulian Elischer #ifdef INVARIANTS 2041faf202eSJulian Elischer KASSERT((p->p_numthreads == 1), 2051faf202eSJulian Elischer ("bad number of threads in exiting process")); 2062c255e9dSRobert Watson KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr")); 207ed062c8dSJulian Elischer #endif 2081ba4a712SPawel Jakub Dawidek /* Free all OSD associated to this thread. */ 2091ba4a712SPawel Jakub Dawidek osd_thread_exit(td); 21089b57fcfSKonstantin Belousov } 2114a62a3e5SRandall Stewart EVENTHANDLER_INVOKE(process_dtor, p); 212ebceaf6dSDavid Xu if (p->p_ksi != NULL) 213ebceaf6dSDavid Xu KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue")); 2145d217f17SJohn Birrell SDT_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0); 215a136efe9SPeter Wemm } 216a136efe9SPeter Wemm 217a136efe9SPeter Wemm /* 218a136efe9SPeter Wemm * Initialize type-stable parts of a proc (when newly created). 219a136efe9SPeter Wemm */ 220b23f72e9SBrian Feldman static int 221b23f72e9SBrian Feldman proc_init(void *mem, int size, int flags) 222a136efe9SPeter Wemm { 223a136efe9SPeter Wemm struct proc *p; 224a136efe9SPeter Wemm 225a136efe9SPeter Wemm p = (struct proc *)mem; 2265d217f17SJohn Birrell SDT_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0); 227de028f5aSJeff Roberson p->p_sched = (struct p_sched *)&p[1]; 2287d447c95SJohn Baldwin bzero(&p->p_mtx, sizeof(struct mtx)); 2297d447c95SJohn Baldwin mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK); 230982d11f8SJeff Roberson mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE); 231aeb32571SKonstantin Belousov cv_init(&p->p_pwait, "ppwait"); 2326fa39a73SKonstantin Belousov cv_init(&p->p_dbgwait, "dbgwait"); 23389b57fcfSKonstantin Belousov TAILQ_INIT(&p->p_threads); /* all threads in proc */ 2344a62a3e5SRandall Stewart EVENTHANDLER_INVOKE(process_init, p); 2358b059651SDavid Schultz p->p_stats = pstats_alloc(); 2365d217f17SJohn Birrell SDT_PROBE(proc, kernel, init, return, p, size, flags, 0, 0); 237b23f72e9SBrian Feldman return (0); 238a136efe9SPeter Wemm } 239a136efe9SPeter Wemm 240a136efe9SPeter Wemm /* 2418daa8c60SDavid Schultz * UMA should ensure that this function is never called. 2428daa8c60SDavid Schultz * Freeing a proc structure would violate type stability. 243a136efe9SPeter Wemm */ 244a136efe9SPeter Wemm static void 245a136efe9SPeter Wemm proc_fini(void *mem, int size) 246a136efe9SPeter Wemm { 247f55ab994SJohn Baldwin #ifdef notnow 248f55ab994SJohn Baldwin struct proc *p; 249a136efe9SPeter Wemm 250f55ab994SJohn Baldwin p = (struct proc *)mem; 2514a62a3e5SRandall Stewart EVENTHANDLER_INVOKE(process_fini, p); 252f55ab994SJohn Baldwin pstats_free(p->p_stats); 253f55ab994SJohn Baldwin thread_free(FIRST_THREAD_IN_PROC(p)); 254f55ab994SJohn Baldwin mtx_destroy(&p->p_mtx); 255ebceaf6dSDavid Xu if (p->p_ksi != NULL) 256ebceaf6dSDavid Xu ksiginfo_free(p->p_ksi); 257f55ab994SJohn Baldwin #else 2588daa8c60SDavid Schultz panic("proc reclaimed"); 259f55ab994SJohn Baldwin #endif 260a136efe9SPeter Wemm } 261a136efe9SPeter Wemm 262a136efe9SPeter Wemm /* 263df8bae1dSRodney W. Grimes * Is p an inferior of the current process? 264df8bae1dSRodney W. Grimes */ 2651a432a2fSDima Ruban int 266d7359980SKonstantin Belousov inferior(struct proc *p) 267df8bae1dSRodney W. Grimes { 268df8bae1dSRodney W. Grimes 2695b29d6e9SJohn Baldwin sx_assert(&proctree_lock, SX_LOCKED); 270d7359980SKonstantin Belousov PROC_LOCK_ASSERT(p, MA_OWNED); 271d7359980SKonstantin Belousov for (; p != curproc; p = proc_realparent(p)) { 27200f13cb3SJohn Baldwin if (p->p_pid == 0) 27300f13cb3SJohn Baldwin return (0); 274d7359980SKonstantin Belousov } 27500f13cb3SJohn Baldwin return (1); 276df8bae1dSRodney W. Grimes } 277df8bae1dSRodney W. Grimes 278df8bae1dSRodney W. Grimes struct proc * 279134eb42eSKonstantin Belousov pfind_locked(pid_t pid) 280df8bae1dSRodney W. Grimes { 281134eb42eSKonstantin Belousov struct proc *p; 282df8bae1dSRodney W. Grimes 283134eb42eSKonstantin Belousov sx_assert(&allproc_lock, SX_LOCKED); 284134eb42eSKonstantin Belousov LIST_FOREACH(p, PIDHASH(pid), p_hash) { 28533a9ed9dSJohn Baldwin if (p->p_pid == pid) { 28633a9ed9dSJohn Baldwin PROC_LOCK(p); 2878e6fa660SJohn Baldwin if (p->p_state == PRS_NEW) { 2888e6fa660SJohn Baldwin PROC_UNLOCK(p); 2898e6fa660SJohn Baldwin p = NULL; 2908e6fa660SJohn Baldwin } 291553629ebSJake Burkholder break; 29233a9ed9dSJohn Baldwin } 293134eb42eSKonstantin Belousov } 294134eb42eSKonstantin Belousov return (p); 295134eb42eSKonstantin Belousov } 296134eb42eSKonstantin Belousov 297134eb42eSKonstantin Belousov /* 298134eb42eSKonstantin Belousov * Locate a process by number; return only "live" processes -- i.e., neither 299134eb42eSKonstantin Belousov * zombies nor newly born but incompletely initialized processes. By not 300134eb42eSKonstantin Belousov * returning processes in the PRS_NEW state, we allow callers to avoid 301134eb42eSKonstantin Belousov * testing for that condition to avoid dereferencing p_ucred, et al. 302134eb42eSKonstantin Belousov */ 303134eb42eSKonstantin Belousov struct proc * 304134eb42eSKonstantin Belousov pfind(pid_t pid) 305134eb42eSKonstantin Belousov { 306134eb42eSKonstantin Belousov struct proc *p; 307134eb42eSKonstantin Belousov 308134eb42eSKonstantin Belousov sx_slock(&allproc_lock); 309134eb42eSKonstantin Belousov p = pfind_locked(pid); 31098ab1489SJeffrey Hsu sx_sunlock(&allproc_lock); 311df8bae1dSRodney W. Grimes return (p); 312df8bae1dSRodney W. Grimes } 313df8bae1dSRodney W. Grimes 314b3bfb267SKonstantin Belousov static struct proc * 315134eb42eSKonstantin Belousov pfind_tid_locked(pid_t tid) 316b3bfb267SKonstantin Belousov { 317b3bfb267SKonstantin Belousov struct proc *p; 318b3bfb267SKonstantin Belousov struct thread *td; 319b3bfb267SKonstantin Belousov 320134eb42eSKonstantin Belousov sx_assert(&allproc_lock, SX_LOCKED); 321b3bfb267SKonstantin Belousov FOREACH_PROC_IN_SYSTEM(p) { 322b3bfb267SKonstantin Belousov PROC_LOCK(p); 323b3bfb267SKonstantin Belousov if (p->p_state == PRS_NEW) { 324b3bfb267SKonstantin Belousov PROC_UNLOCK(p); 325b3bfb267SKonstantin Belousov continue; 326b3bfb267SKonstantin Belousov } 327b3bfb267SKonstantin Belousov FOREACH_THREAD_IN_PROC(p, td) { 328b3bfb267SKonstantin Belousov if (td->td_tid == tid) 329b3bfb267SKonstantin Belousov goto found; 330b3bfb267SKonstantin Belousov } 331b3bfb267SKonstantin Belousov PROC_UNLOCK(p); 332b3bfb267SKonstantin Belousov } 333b3bfb267SKonstantin Belousov found: 334b3bfb267SKonstantin Belousov return (p); 335b3bfb267SKonstantin Belousov } 336b3bfb267SKonstantin Belousov 337df8bae1dSRodney W. Grimes /* 338f591779bSSeigo Tanimura * Locate a process group by number. 339f089b570SJohn Baldwin * The caller must hold proctree_lock. 340df8bae1dSRodney W. Grimes */ 341df8bae1dSRodney W. Grimes struct pgrp * 342df8bae1dSRodney W. Grimes pgfind(pgid) 343df8bae1dSRodney W. Grimes register pid_t pgid; 344df8bae1dSRodney W. Grimes { 345df8bae1dSRodney W. Grimes register struct pgrp *pgrp; 346df8bae1dSRodney W. Grimes 347f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_LOCKED); 348f591779bSSeigo Tanimura 349f591779bSSeigo Tanimura LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) { 350f591779bSSeigo Tanimura if (pgrp->pg_id == pgid) { 351f591779bSSeigo Tanimura PGRP_LOCK(pgrp); 352df8bae1dSRodney W. Grimes return (pgrp); 353f591779bSSeigo Tanimura } 354f591779bSSeigo Tanimura } 355df8bae1dSRodney W. Grimes return (NULL); 356df8bae1dSRodney W. Grimes } 357df8bae1dSRodney W. Grimes 358df8bae1dSRodney W. Grimes /* 359fa3935bcSMikolaj Golub * Locate process and do additional manipulations, depending on flags. 360fa3935bcSMikolaj Golub */ 361fa3935bcSMikolaj Golub int 362fa3935bcSMikolaj Golub pget(pid_t pid, int flags, struct proc **pp) 363fa3935bcSMikolaj Golub { 364fa3935bcSMikolaj Golub struct proc *p; 365fa3935bcSMikolaj Golub int error; 366fa3935bcSMikolaj Golub 367134eb42eSKonstantin Belousov sx_slock(&allproc_lock); 3684f666417SPawel Jakub Dawidek if (pid <= PID_MAX) { 369134eb42eSKonstantin Belousov p = pfind_locked(pid); 370134eb42eSKonstantin Belousov if (p == NULL && (flags & PGET_NOTWEXIT) == 0) 371134eb42eSKonstantin Belousov p = zpfind_locked(pid); 3724f666417SPawel Jakub Dawidek } else if ((flags & PGET_NOTID) == 0) { 3734f666417SPawel Jakub Dawidek p = pfind_tid_locked(pid); 3744f666417SPawel Jakub Dawidek } else { 3754f666417SPawel Jakub Dawidek p = NULL; 3764f666417SPawel Jakub Dawidek } 377134eb42eSKonstantin Belousov sx_sunlock(&allproc_lock); 378fa3935bcSMikolaj Golub if (p == NULL) 379fa3935bcSMikolaj Golub return (ESRCH); 380fa3935bcSMikolaj Golub if ((flags & PGET_CANSEE) != 0) { 381fa3935bcSMikolaj Golub error = p_cansee(curthread, p); 382fa3935bcSMikolaj Golub if (error != 0) 383fa3935bcSMikolaj Golub goto errout; 384fa3935bcSMikolaj Golub } 385fa3935bcSMikolaj Golub if ((flags & PGET_CANDEBUG) != 0) { 386fa3935bcSMikolaj Golub error = p_candebug(curthread, p); 387fa3935bcSMikolaj Golub if (error != 0) 388fa3935bcSMikolaj Golub goto errout; 389fa3935bcSMikolaj Golub } 390fa3935bcSMikolaj Golub if ((flags & PGET_ISCURRENT) != 0 && curproc != p) { 391fa3935bcSMikolaj Golub error = EPERM; 392fa3935bcSMikolaj Golub goto errout; 393fa3935bcSMikolaj Golub } 394fa3935bcSMikolaj Golub if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) { 395fa3935bcSMikolaj Golub error = ESRCH; 396fa3935bcSMikolaj Golub goto errout; 397fa3935bcSMikolaj Golub } 398fa3935bcSMikolaj Golub if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) { 399fa3935bcSMikolaj Golub /* 400fa3935bcSMikolaj Golub * XXXRW: Not clear ESRCH is the right error during proc 401fa3935bcSMikolaj Golub * execve(). 402fa3935bcSMikolaj Golub */ 403fa3935bcSMikolaj Golub error = ESRCH; 404fa3935bcSMikolaj Golub goto errout; 405fa3935bcSMikolaj Golub } 406fa3935bcSMikolaj Golub if ((flags & PGET_HOLD) != 0) { 407fa3935bcSMikolaj Golub _PHOLD(p); 408fa3935bcSMikolaj Golub PROC_UNLOCK(p); 409fa3935bcSMikolaj Golub } 410fa3935bcSMikolaj Golub *pp = p; 411fa3935bcSMikolaj Golub return (0); 412fa3935bcSMikolaj Golub errout: 413fa3935bcSMikolaj Golub PROC_UNLOCK(p); 414fa3935bcSMikolaj Golub return (error); 415fa3935bcSMikolaj Golub } 416fa3935bcSMikolaj Golub 417fa3935bcSMikolaj Golub /* 418f591779bSSeigo Tanimura * Create a new process group. 419f591779bSSeigo Tanimura * pgid must be equal to the pid of p. 420f591779bSSeigo Tanimura * Begin a new session if required. 421df8bae1dSRodney W. Grimes */ 42226f9a767SRodney W. Grimes int 423f591779bSSeigo Tanimura enterpgrp(p, pgid, pgrp, sess) 424df8bae1dSRodney W. Grimes register struct proc *p; 425df8bae1dSRodney W. Grimes pid_t pgid; 426f591779bSSeigo Tanimura struct pgrp *pgrp; 427f591779bSSeigo Tanimura struct session *sess; 428df8bae1dSRodney W. Grimes { 429df8bae1dSRodney W. Grimes 430f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_XLOCKED); 431f591779bSSeigo Tanimura 432f591779bSSeigo Tanimura KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL")); 433f591779bSSeigo Tanimura KASSERT(p->p_pid == pgid, 434f591779bSSeigo Tanimura ("enterpgrp: new pgrp and pid != pgid")); 4354419a8a8SMateusz Guzik KASSERT(pgfind(pgid) == NULL, 436f591779bSSeigo Tanimura ("enterpgrp: pgrp with pgid exists")); 4375526d2d9SEivind Eklund KASSERT(!SESS_LEADER(p), 4385526d2d9SEivind Eklund ("enterpgrp: session leader attempted setpgrp")); 439219cbf59SEivind Eklund 4406008862bSJohn Baldwin mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK); 441df8bae1dSRodney W. Grimes 442f591779bSSeigo Tanimura if (sess != NULL) { 443df8bae1dSRodney W. Grimes /* 444df8bae1dSRodney W. Grimes * new session 445df8bae1dSRodney W. Grimes */ 4466008862bSJohn Baldwin mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF); 447f591779bSSeigo Tanimura PROC_LOCK(p); 448f591779bSSeigo Tanimura p->p_flag &= ~P_CONTROLT; 449f591779bSSeigo Tanimura PROC_UNLOCK(p); 450f591779bSSeigo Tanimura PGRP_LOCK(pgrp); 451df8bae1dSRodney W. Grimes sess->s_leader = p; 452643a8daaSDon Lewis sess->s_sid = p->p_pid; 453bc093719SEd Schouten refcount_init(&sess->s_count, 1); 454df8bae1dSRodney W. Grimes sess->s_ttyvp = NULL; 4558dc9b4cfSEd Schouten sess->s_ttydp = NULL; 456df8bae1dSRodney W. Grimes sess->s_ttyp = NULL; 457df8bae1dSRodney W. Grimes bcopy(p->p_session->s_login, sess->s_login, 458df8bae1dSRodney W. Grimes sizeof(sess->s_login)); 459df8bae1dSRodney W. Grimes pgrp->pg_session = sess; 4605526d2d9SEivind Eklund KASSERT(p == curproc, 4615526d2d9SEivind Eklund ("enterpgrp: mksession and p != curproc")); 462df8bae1dSRodney W. Grimes } else { 463df8bae1dSRodney W. Grimes pgrp->pg_session = p->p_session; 464bc093719SEd Schouten sess_hold(pgrp->pg_session); 465f591779bSSeigo Tanimura PGRP_LOCK(pgrp); 466df8bae1dSRodney W. Grimes } 467df8bae1dSRodney W. Grimes pgrp->pg_id = pgid; 468b75356e1SJeffrey Hsu LIST_INIT(&pgrp->pg_members); 469f591779bSSeigo Tanimura 470f591779bSSeigo Tanimura /* 471f089b570SJohn Baldwin * As we have an exclusive lock of proctree_lock, 472f591779bSSeigo Tanimura * this should not deadlock. 473f591779bSSeigo Tanimura */ 474b75356e1SJeffrey Hsu LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash); 475df8bae1dSRodney W. Grimes pgrp->pg_jobc = 0; 476831d27a9SDon Lewis SLIST_INIT(&pgrp->pg_sigiolst); 477f591779bSSeigo Tanimura PGRP_UNLOCK(pgrp); 478f591779bSSeigo Tanimura 479f591779bSSeigo Tanimura doenterpgrp(p, pgrp); 480f591779bSSeigo Tanimura 481df8bae1dSRodney W. Grimes return (0); 482f591779bSSeigo Tanimura } 483f591779bSSeigo Tanimura 484f591779bSSeigo Tanimura /* 485f591779bSSeigo Tanimura * Move p to an existing process group 486f591779bSSeigo Tanimura */ 487f591779bSSeigo Tanimura int 488f591779bSSeigo Tanimura enterthispgrp(p, pgrp) 489f591779bSSeigo Tanimura register struct proc *p; 490f591779bSSeigo Tanimura struct pgrp *pgrp; 491f591779bSSeigo Tanimura { 492f089b570SJohn Baldwin 493f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_XLOCKED); 494f591779bSSeigo Tanimura PROC_LOCK_ASSERT(p, MA_NOTOWNED); 495f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 496f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED); 497f591779bSSeigo Tanimura SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED); 498f591779bSSeigo Tanimura KASSERT(pgrp->pg_session == p->p_session, 499f591779bSSeigo Tanimura ("%s: pgrp's session %p, p->p_session %p.\n", 500f591779bSSeigo Tanimura __func__, 501f591779bSSeigo Tanimura pgrp->pg_session, 502f591779bSSeigo Tanimura p->p_session)); 503f591779bSSeigo Tanimura KASSERT(pgrp != p->p_pgrp, 504f591779bSSeigo Tanimura ("%s: p belongs to pgrp.", __func__)); 505f591779bSSeigo Tanimura 506f591779bSSeigo Tanimura doenterpgrp(p, pgrp); 507f591779bSSeigo Tanimura 508f591779bSSeigo Tanimura return (0); 509f591779bSSeigo Tanimura } 510f591779bSSeigo Tanimura 511f591779bSSeigo Tanimura /* 512f591779bSSeigo Tanimura * Move p to a process group 513f591779bSSeigo Tanimura */ 514f591779bSSeigo Tanimura static void 515f591779bSSeigo Tanimura doenterpgrp(p, pgrp) 516f591779bSSeigo Tanimura struct proc *p; 517f591779bSSeigo Tanimura struct pgrp *pgrp; 518f591779bSSeigo Tanimura { 519f591779bSSeigo Tanimura struct pgrp *savepgrp; 520f591779bSSeigo Tanimura 521f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_XLOCKED); 522f591779bSSeigo Tanimura PROC_LOCK_ASSERT(p, MA_NOTOWNED); 523f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 524f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED); 525f591779bSSeigo Tanimura SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED); 526f591779bSSeigo Tanimura 527f591779bSSeigo Tanimura savepgrp = p->p_pgrp; 528df8bae1dSRodney W. Grimes 529df8bae1dSRodney W. Grimes /* 530df8bae1dSRodney W. Grimes * Adjust eligibility of affected pgrps to participate in job control. 531df8bae1dSRodney W. Grimes * Increment eligibility counts before decrementing, otherwise we 532df8bae1dSRodney W. Grimes * could reach 0 spuriously during the first call. 533df8bae1dSRodney W. Grimes */ 534df8bae1dSRodney W. Grimes fixjobc(p, pgrp, 1); 535df8bae1dSRodney W. Grimes fixjobc(p, p->p_pgrp, 0); 536df8bae1dSRodney W. Grimes 537f591779bSSeigo Tanimura PGRP_LOCK(pgrp); 538f591779bSSeigo Tanimura PGRP_LOCK(savepgrp); 53915e9ec51SJohn Baldwin PROC_LOCK(p); 540b75356e1SJeffrey Hsu LIST_REMOVE(p, p_pglist); 541df8bae1dSRodney W. Grimes p->p_pgrp = pgrp; 54215e9ec51SJohn Baldwin PROC_UNLOCK(p); 543f591779bSSeigo Tanimura LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist); 544f591779bSSeigo Tanimura PGRP_UNLOCK(savepgrp); 545f591779bSSeigo Tanimura PGRP_UNLOCK(pgrp); 546f591779bSSeigo Tanimura if (LIST_EMPTY(&savepgrp->pg_members)) 547f591779bSSeigo Tanimura pgdelete(savepgrp); 548df8bae1dSRodney W. Grimes } 549df8bae1dSRodney W. Grimes 550df8bae1dSRodney W. Grimes /* 551df8bae1dSRodney W. Grimes * remove process from process group 552df8bae1dSRodney W. Grimes */ 55326f9a767SRodney W. Grimes int 554df8bae1dSRodney W. Grimes leavepgrp(p) 555df8bae1dSRodney W. Grimes register struct proc *p; 556df8bae1dSRodney W. Grimes { 557f591779bSSeigo Tanimura struct pgrp *savepgrp; 558df8bae1dSRodney W. Grimes 559f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_XLOCKED); 560f591779bSSeigo Tanimura savepgrp = p->p_pgrp; 561f591779bSSeigo Tanimura PGRP_LOCK(savepgrp); 56215e9ec51SJohn Baldwin PROC_LOCK(p); 563b75356e1SJeffrey Hsu LIST_REMOVE(p, p_pglist); 56415e9ec51SJohn Baldwin p->p_pgrp = NULL; 56515e9ec51SJohn Baldwin PROC_UNLOCK(p); 566f591779bSSeigo Tanimura PGRP_UNLOCK(savepgrp); 567f591779bSSeigo Tanimura if (LIST_EMPTY(&savepgrp->pg_members)) 568f591779bSSeigo Tanimura pgdelete(savepgrp); 569df8bae1dSRodney W. Grimes return (0); 570df8bae1dSRodney W. Grimes } 571df8bae1dSRodney W. Grimes 572df8bae1dSRodney W. Grimes /* 573df8bae1dSRodney W. Grimes * delete a process group 574df8bae1dSRodney W. Grimes */ 57587b6de2bSPoul-Henning Kamp static void 576df8bae1dSRodney W. Grimes pgdelete(pgrp) 577df8bae1dSRodney W. Grimes register struct pgrp *pgrp; 578df8bae1dSRodney W. Grimes { 579f591779bSSeigo Tanimura struct session *savesess; 580bc093719SEd Schouten struct tty *tp; 581f591779bSSeigo Tanimura 582f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_XLOCKED); 583f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 584f591779bSSeigo Tanimura SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED); 585f591779bSSeigo Tanimura 586831d27a9SDon Lewis /* 587831d27a9SDon Lewis * Reset any sigio structures pointing to us as a result of 588831d27a9SDon Lewis * F_SETOWN with our pgid. 589831d27a9SDon Lewis */ 590831d27a9SDon Lewis funsetownlst(&pgrp->pg_sigiolst); 591831d27a9SDon Lewis 592e649887bSAlfred Perlstein PGRP_LOCK(pgrp); 593bc093719SEd Schouten tp = pgrp->pg_session->s_ttyp; 594b75356e1SJeffrey Hsu LIST_REMOVE(pgrp, pg_hash); 595f591779bSSeigo Tanimura savesess = pgrp->pg_session; 596f591779bSSeigo Tanimura PGRP_UNLOCK(pgrp); 597bc093719SEd Schouten 598bc093719SEd Schouten /* Remove the reference to the pgrp before deallocating it. */ 599bc093719SEd Schouten if (tp != NULL) { 600bc093719SEd Schouten tty_lock(tp); 601bc093719SEd Schouten tty_rel_pgrp(tp, pgrp); 602bc093719SEd Schouten } 603bc093719SEd Schouten 6046041fa0aSSeigo Tanimura mtx_destroy(&pgrp->pg_mtx); 6051ede983cSDag-Erling Smørgrav free(pgrp, M_PGRP); 606bc093719SEd Schouten sess_release(savesess); 607df8bae1dSRodney W. Grimes } 608df8bae1dSRodney W. Grimes 60902e878d9SJohn Baldwin static void 61002e878d9SJohn Baldwin pgadjustjobc(pgrp, entering) 61102e878d9SJohn Baldwin struct pgrp *pgrp; 61202e878d9SJohn Baldwin int entering; 61302e878d9SJohn Baldwin { 61402e878d9SJohn Baldwin 61502e878d9SJohn Baldwin PGRP_LOCK(pgrp); 61602e878d9SJohn Baldwin if (entering) 61702e878d9SJohn Baldwin pgrp->pg_jobc++; 61802e878d9SJohn Baldwin else { 61902e878d9SJohn Baldwin --pgrp->pg_jobc; 62002e878d9SJohn Baldwin if (pgrp->pg_jobc == 0) 62102e878d9SJohn Baldwin orphanpg(pgrp); 62202e878d9SJohn Baldwin } 62302e878d9SJohn Baldwin PGRP_UNLOCK(pgrp); 62402e878d9SJohn Baldwin } 62502e878d9SJohn Baldwin 626df8bae1dSRodney W. Grimes /* 627df8bae1dSRodney W. Grimes * Adjust pgrp jobc counters when specified process changes process group. 628df8bae1dSRodney W. Grimes * We count the number of processes in each process group that "qualify" 629df8bae1dSRodney W. Grimes * the group for terminal job control (those with a parent in a different 630df8bae1dSRodney W. Grimes * process group of the same session). If that count reaches zero, the 631df8bae1dSRodney W. Grimes * process group becomes orphaned. Check both the specified process' 632df8bae1dSRodney W. Grimes * process group and that of its children. 633df8bae1dSRodney W. Grimes * entering == 0 => p is leaving specified group. 634df8bae1dSRodney W. Grimes * entering == 1 => p is entering specified group. 635df8bae1dSRodney W. Grimes */ 63626f9a767SRodney W. Grimes void 637df8bae1dSRodney W. Grimes fixjobc(p, pgrp, entering) 638df8bae1dSRodney W. Grimes register struct proc *p; 639df8bae1dSRodney W. Grimes register struct pgrp *pgrp; 640df8bae1dSRodney W. Grimes int entering; 641df8bae1dSRodney W. Grimes { 642df8bae1dSRodney W. Grimes register struct pgrp *hispgrp; 643f591779bSSeigo Tanimura register struct session *mysession; 644f591779bSSeigo Tanimura 645f089b570SJohn Baldwin sx_assert(&proctree_lock, SX_LOCKED); 646f591779bSSeigo Tanimura PROC_LOCK_ASSERT(p, MA_NOTOWNED); 647f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 648f591779bSSeigo Tanimura SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED); 649df8bae1dSRodney W. Grimes 650df8bae1dSRodney W. Grimes /* 651df8bae1dSRodney W. Grimes * Check p's parent to see whether p qualifies its own process 652df8bae1dSRodney W. Grimes * group; if so, adjust count for p's process group. 653df8bae1dSRodney W. Grimes */ 654f591779bSSeigo Tanimura mysession = pgrp->pg_session; 655df8bae1dSRodney W. Grimes if ((hispgrp = p->p_pptr->p_pgrp) != pgrp && 65602e878d9SJohn Baldwin hispgrp->pg_session == mysession) 65702e878d9SJohn Baldwin pgadjustjobc(pgrp, entering); 658df8bae1dSRodney W. Grimes 659df8bae1dSRodney W. Grimes /* 660df8bae1dSRodney W. Grimes * Check this process' children to see whether they qualify 661df8bae1dSRodney W. Grimes * their process groups; if so, adjust counts for children's 662df8bae1dSRodney W. Grimes * process groups. 663df8bae1dSRodney W. Grimes */ 664f591779bSSeigo Tanimura LIST_FOREACH(p, &p->p_children, p_sibling) { 66502e878d9SJohn Baldwin hispgrp = p->p_pgrp; 66602e878d9SJohn Baldwin if (hispgrp == pgrp || 66702e878d9SJohn Baldwin hispgrp->pg_session != mysession) 66802e878d9SJohn Baldwin continue; 66902e878d9SJohn Baldwin PROC_LOCK(p); 67002e878d9SJohn Baldwin if (p->p_state == PRS_ZOMBIE) { 67102e878d9SJohn Baldwin PROC_UNLOCK(p); 67202e878d9SJohn Baldwin continue; 673df8bae1dSRodney W. Grimes } 67402e878d9SJohn Baldwin PROC_UNLOCK(p); 67502e878d9SJohn Baldwin pgadjustjobc(hispgrp, entering); 676f591779bSSeigo Tanimura } 677dfd5dee1SPeter Wemm } 678df8bae1dSRodney W. Grimes 679df8bae1dSRodney W. Grimes /* 680df8bae1dSRodney W. Grimes * A process group has become orphaned; 681df8bae1dSRodney W. Grimes * if there are any stopped processes in the group, 682df8bae1dSRodney W. Grimes * hang-up all process in that group. 683df8bae1dSRodney W. Grimes */ 684df8bae1dSRodney W. Grimes static void 685df8bae1dSRodney W. Grimes orphanpg(pg) 686df8bae1dSRodney W. Grimes struct pgrp *pg; 687df8bae1dSRodney W. Grimes { 688df8bae1dSRodney W. Grimes register struct proc *p; 689df8bae1dSRodney W. Grimes 690f591779bSSeigo Tanimura PGRP_LOCK_ASSERT(pg, MA_OWNED); 691f591779bSSeigo Tanimura 6921b727751SPoul-Henning Kamp LIST_FOREACH(p, &pg->pg_members, p_pglist) { 69302e878d9SJohn Baldwin PROC_LOCK(p); 694e602ba25SJulian Elischer if (P_SHOULDSTOP(p)) { 69502e878d9SJohn Baldwin PROC_UNLOCK(p); 6961b727751SPoul-Henning Kamp LIST_FOREACH(p, &pg->pg_members, p_pglist) { 69715e9ec51SJohn Baldwin PROC_LOCK(p); 6988451d0ddSKip Macy kern_psignal(p, SIGHUP); 6998451d0ddSKip Macy kern_psignal(p, SIGCONT); 70015e9ec51SJohn Baldwin PROC_UNLOCK(p); 701df8bae1dSRodney W. Grimes } 702df8bae1dSRodney W. Grimes return; 703df8bae1dSRodney W. Grimes } 70402e878d9SJohn Baldwin PROC_UNLOCK(p); 705df8bae1dSRodney W. Grimes } 706df8bae1dSRodney W. Grimes } 707df8bae1dSRodney W. Grimes 708572b4402SPoul-Henning Kamp void 709bc093719SEd Schouten sess_hold(struct session *s) 710572b4402SPoul-Henning Kamp { 711572b4402SPoul-Henning Kamp 712bc093719SEd Schouten refcount_acquire(&s->s_count); 713bc093719SEd Schouten } 714bc093719SEd Schouten 715bc093719SEd Schouten void 716bc093719SEd Schouten sess_release(struct session *s) 717bc093719SEd Schouten { 718bc093719SEd Schouten 719bc093719SEd Schouten if (refcount_release(&s->s_count)) { 720bc093719SEd Schouten if (s->s_ttyp != NULL) { 721bc093719SEd Schouten tty_lock(s->s_ttyp); 722bc093719SEd Schouten tty_rel_sess(s->s_ttyp, s); 723bc093719SEd Schouten } 724572b4402SPoul-Henning Kamp mtx_destroy(&s->s_mtx); 7251ede983cSDag-Erling Smørgrav free(s, M_SESSION); 726572b4402SPoul-Henning Kamp } 727572b4402SPoul-Henning Kamp } 728572b4402SPoul-Henning Kamp 729831031ceSBruce Evans #ifdef DDB 730831031ceSBruce Evans 731831031ceSBruce Evans DB_SHOW_COMMAND(pgrpdump, pgrpdump) 732df8bae1dSRodney W. Grimes { 733df8bae1dSRodney W. Grimes register struct pgrp *pgrp; 734df8bae1dSRodney W. Grimes register struct proc *p; 735876a94eeSBruce Evans register int i; 736df8bae1dSRodney W. Grimes 737b75356e1SJeffrey Hsu for (i = 0; i <= pgrphash; i++) { 7381b727751SPoul-Henning Kamp if (!LIST_EMPTY(&pgrphashtbl[i])) { 739df8bae1dSRodney W. Grimes printf("\tindx %d\n", i); 7401b727751SPoul-Henning Kamp LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) { 741ac1e407bSBruce Evans printf( 742ac1e407bSBruce Evans "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n", 743ac1e407bSBruce Evans (void *)pgrp, (long)pgrp->pg_id, 744ac1e407bSBruce Evans (void *)pgrp->pg_session, 745b75356e1SJeffrey Hsu pgrp->pg_session->s_count, 7461b727751SPoul-Henning Kamp (void *)LIST_FIRST(&pgrp->pg_members)); 7471b727751SPoul-Henning Kamp LIST_FOREACH(p, &pgrp->pg_members, p_pglist) { 748ac1e407bSBruce Evans printf("\t\tpid %ld addr %p pgrp %p\n", 749ac1e407bSBruce Evans (long)p->p_pid, (void *)p, 750ac1e407bSBruce Evans (void *)p->p_pgrp); 751df8bae1dSRodney W. Grimes } 752df8bae1dSRodney W. Grimes } 753df8bae1dSRodney W. Grimes } 754df8bae1dSRodney W. Grimes } 755df8bae1dSRodney W. Grimes } 756831031ceSBruce Evans #endif /* DDB */ 757972f9b20SPoul-Henning Kamp 758972f9b20SPoul-Henning Kamp /* 759f8d90480SAttilio Rao * Calculate the kinfo_proc members which contain process-wide 760f8d90480SAttilio Rao * informations. 761f8d90480SAttilio Rao * Must be called with the target process locked. 762f8d90480SAttilio Rao */ 763f8d90480SAttilio Rao static void 764f8d90480SAttilio Rao fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp) 765f8d90480SAttilio Rao { 766f8d90480SAttilio Rao struct thread *td; 767f8d90480SAttilio Rao 768f8d90480SAttilio Rao PROC_LOCK_ASSERT(p, MA_OWNED); 769f8d90480SAttilio Rao 770f8d90480SAttilio Rao kp->ki_estcpu = 0; 771f8d90480SAttilio Rao kp->ki_pctcpu = 0; 772f8d90480SAttilio Rao FOREACH_THREAD_IN_PROC(p, td) { 773f8d90480SAttilio Rao thread_lock(td); 774f8d90480SAttilio Rao kp->ki_pctcpu += sched_pctcpu(td); 775f8d90480SAttilio Rao kp->ki_estcpu += td->td_estcpu; 776f8d90480SAttilio Rao thread_unlock(td); 777f8d90480SAttilio Rao } 778f8d90480SAttilio Rao } 779f8d90480SAttilio Rao 780f8d90480SAttilio Rao /* 7815032ff81SDon Lewis * Clear kinfo_proc and fill in any information that is common 7825032ff81SDon Lewis * to all threads in the process. 78365c9b430SJohn Baldwin * Must be called with the target process locked. 784972f9b20SPoul-Henning Kamp */ 7855032ff81SDon Lewis static void 7865032ff81SDon Lewis fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp) 787972f9b20SPoul-Henning Kamp { 7884093529dSJeff Roberson struct thread *td0; 7891f7d2501SKirk McKusick struct tty *tp; 7901f7d2501SKirk McKusick struct session *sp; 791d079d0a0SPawel Jakub Dawidek struct ucred *cred; 79290af4afaSJohn Baldwin struct sigacts *ps; 793972f9b20SPoul-Henning Kamp 7948b04bbefSMateusz Guzik /* For proc_realparent. */ 7958b04bbefSMateusz Guzik sx_assert(&proctree_lock, SX_LOCKED); 796374ae2a3SJeff Roberson PROC_LOCK_ASSERT(p, MA_OWNED); 7971f7d2501SKirk McKusick bzero(kp, sizeof(*kp)); 798972f9b20SPoul-Henning Kamp 7991f7d2501SKirk McKusick kp->ki_structsize = sizeof(*kp); 8001f7d2501SKirk McKusick kp->ki_paddr = p; 8016617724cSJeff Roberson kp->ki_addr =/* p->p_addr; */0; /* XXX */ 8021f7d2501SKirk McKusick kp->ki_args = p->p_args; 8031f7d2501SKirk McKusick kp->ki_textvp = p->p_textvp; 8046c84de02SJohn Baldwin #ifdef KTRACE 805a5881ea5SJohn Baldwin kp->ki_tracep = p->p_tracevp; 8066c84de02SJohn Baldwin kp->ki_traceflag = p->p_traceflag; 8076c84de02SJohn Baldwin #endif 8081f7d2501SKirk McKusick kp->ki_fd = p->p_fd; 8091f7d2501SKirk McKusick kp->ki_vmspace = p->p_vmspace; 810cefcecbeSPawel Jakub Dawidek kp->ki_flag = p->p_flag; 81155648840SJohn Baldwin kp->ki_flag2 = p->p_flag2; 812d079d0a0SPawel Jakub Dawidek cred = p->p_ucred; 813d079d0a0SPawel Jakub Dawidek if (cred) { 814d079d0a0SPawel Jakub Dawidek kp->ki_uid = cred->cr_uid; 815d079d0a0SPawel Jakub Dawidek kp->ki_ruid = cred->cr_ruid; 816d079d0a0SPawel Jakub Dawidek kp->ki_svuid = cred->cr_svuid; 81796fcc75fSRobert Watson kp->ki_cr_flags = 0; 81896fcc75fSRobert Watson if (cred->cr_flags & CRED_FLAG_CAPMODE) 81996fcc75fSRobert Watson kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE; 8201b5768beSBrooks Davis /* XXX bde doesn't like KI_NGROUPS */ 8211b5768beSBrooks Davis if (cred->cr_ngroups > KI_NGROUPS) { 8221b5768beSBrooks Davis kp->ki_ngroups = KI_NGROUPS; 8231b5768beSBrooks Davis kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW; 8241b5768beSBrooks Davis } else 825838d9858SBrooks Davis kp->ki_ngroups = cred->cr_ngroups; 8261b5768beSBrooks Davis bcopy(cred->cr_groups, kp->ki_groups, 8271b5768beSBrooks Davis kp->ki_ngroups * sizeof(gid_t)); 828d079d0a0SPawel Jakub Dawidek kp->ki_rgid = cred->cr_rgid; 829d079d0a0SPawel Jakub Dawidek kp->ki_svgid = cred->cr_svgid; 830cefcecbeSPawel Jakub Dawidek /* If jailed(cred), emulate the old P_JAILED flag. */ 831c78941e6SPawel Jakub Dawidek if (jailed(cred)) { 832cefcecbeSPawel Jakub Dawidek kp->ki_flag |= P_JAILED; 8330304c731SJamie Gritton /* If inside the jail, use 0 as a jail ID. */ 8340304c731SJamie Gritton if (cred->cr_prison != curthread->td_ucred->cr_prison) 835c78941e6SPawel Jakub Dawidek kp->ki_jid = cred->cr_prison->pr_id; 836c78941e6SPawel Jakub Dawidek } 8377123f4cdSEdward Tomasz Napierala strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name, 8387123f4cdSEdward Tomasz Napierala sizeof(kp->ki_loginclass)); 839972f9b20SPoul-Henning Kamp } 84090af4afaSJohn Baldwin ps = p->p_sigacts; 841d079d0a0SPawel Jakub Dawidek if (ps) { 84290af4afaSJohn Baldwin mtx_lock(&ps->ps_mtx); 84390af4afaSJohn Baldwin kp->ki_sigignore = ps->ps_sigignore; 84490af4afaSJohn Baldwin kp->ki_sigcatch = ps->ps_sigcatch; 84590af4afaSJohn Baldwin mtx_unlock(&ps->ps_mtx); 846d8c85307SJulian Elischer } 847e602ba25SJulian Elischer if (p->p_state != PRS_NEW && 848e602ba25SJulian Elischer p->p_state != PRS_ZOMBIE && 849e602ba25SJulian Elischer p->p_vmspace != NULL) { 8501f7d2501SKirk McKusick struct vmspace *vm = p->p_vmspace; 851cd73303cSDavid Greenman 8521f7d2501SKirk McKusick kp->ki_size = vm->vm_map.size; 8531f7d2501SKirk McKusick kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/ 854ceff7f2aSTim J. Robbins FOREACH_THREAD_IN_PROC(p, td0) { 855ceff7f2aSTim J. Robbins if (!TD_IS_SWAPPED(td0)) 856ceff7f2aSTim J. Robbins kp->ki_rssize += td0->td_kstack_pages; 857ceff7f2aSTim J. Robbins } 8581f7d2501SKirk McKusick kp->ki_swrss = vm->vm_swrss; 8591f7d2501SKirk McKusick kp->ki_tsize = vm->vm_tsize; 8601f7d2501SKirk McKusick kp->ki_dsize = vm->vm_dsize; 8611f7d2501SKirk McKusick kp->ki_ssize = vm->vm_ssize; 8625032ff81SDon Lewis } else if (p->p_state == PRS_ZOMBIE) 8635032ff81SDon Lewis kp->ki_stat = SZOMB; 864b61ce5b0SJeff Roberson if (kp->ki_flag & P_INMEM) 865b61ce5b0SJeff Roberson kp->ki_sflag = PS_INMEM; 866b61ce5b0SJeff Roberson else 867b61ce5b0SJeff Roberson kp->ki_sflag = 0; 86854b0e65fSJeff Roberson /* Calculate legacy swtime as seconds since 'swtick'. */ 86954b0e65fSJeff Roberson kp->ki_swtime = (ticks - p->p_swtick) / hz; 870cebabef0SPawel Jakub Dawidek kp->ki_pid = p->p_pid; 871cebabef0SPawel Jakub Dawidek kp->ki_nice = p->p_nice; 8725e9ccc87SWill Andrews kp->ki_fibnum = p->p_fibnum; 87378c85e8dSJohn Baldwin kp->ki_start = p->p_stats->p_start; 87478c85e8dSJohn Baldwin timevaladd(&kp->ki_start, &boottime); 875a1fe14bcSAttilio Rao PROC_SLOCK(p); 8768e6fa660SJohn Baldwin rufetch(p, &kp->ki_rusage); 8778e6fa660SJohn Baldwin kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime); 87878c85e8dSJohn Baldwin calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime); 879a1fe14bcSAttilio Rao PROC_SUNLOCK(p); 88078c85e8dSJohn Baldwin calccru(p, &kp->ki_childutime, &kp->ki_childstime); 881a37e14e1SEdward Tomasz Napierala /* Some callers want child times in a single value. */ 88278c85e8dSJohn Baldwin kp->ki_childtime = kp->ki_childstime; 88378c85e8dSJohn Baldwin timevaladd(&kp->ki_childtime, &kp->ki_childutime); 884a37e14e1SEdward Tomasz Napierala 8854d34e019SKonstantin Belousov FOREACH_THREAD_IN_PROC(p, td0) 8864d34e019SKonstantin Belousov kp->ki_cow += td0->td_cow; 8874d34e019SKonstantin Belousov 888f591779bSSeigo Tanimura tp = NULL; 8891f7d2501SKirk McKusick if (p->p_pgrp) { 8901f7d2501SKirk McKusick kp->ki_pgid = p->p_pgrp->pg_id; 8911f7d2501SKirk McKusick kp->ki_jobc = p->p_pgrp->pg_jobc; 8921f7d2501SKirk McKusick sp = p->p_pgrp->pg_session; 8931f7d2501SKirk McKusick 8941f7d2501SKirk McKusick if (sp != NULL) { 8951f7d2501SKirk McKusick kp->ki_sid = sp->s_sid; 896f591779bSSeigo Tanimura SESS_LOCK(sp); 897e80fb434SRobert Drehmel strlcpy(kp->ki_login, sp->s_login, 898e80fb434SRobert Drehmel sizeof(kp->ki_login)); 8991f7d2501SKirk McKusick if (sp->s_ttyvp) 900b8e6bf1eSJohn Baldwin kp->ki_kiflag |= KI_CTTY; 9011f7d2501SKirk McKusick if (SESS_LEADER(p)) 9021f7d2501SKirk McKusick kp->ki_kiflag |= KI_SLEADER; 903bc093719SEd Schouten /* XXX proctree_lock */ 904f591779bSSeigo Tanimura tp = sp->s_ttyp; 905f591779bSSeigo Tanimura SESS_UNLOCK(sp); 906cd73303cSDavid Greenman } 907cd73303cSDavid Greenman } 908f591779bSSeigo Tanimura if ((p->p_flag & P_CONTROLT) && tp != NULL) { 909bc093719SEd Schouten kp->ki_tdev = tty_udev(tp); 9101f7d2501SKirk McKusick kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 9111f7d2501SKirk McKusick if (tp->t_session) 9121f7d2501SKirk McKusick kp->ki_tsid = tp->t_session->s_sid; 913972f9b20SPoul-Henning Kamp } else 914f3732fd1SPoul-Henning Kamp kp->ki_tdev = NODEV; 91513b762a3SEd Maste if (p->p_comm[0] != '\0') 916e80fb434SRobert Drehmel strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm)); 917078842c5SGarance A Drosehn if (p->p_sysent && p->p_sysent->sv_name != NULL && 918078842c5SGarance A Drosehn p->p_sysent->sv_name[0] != '\0') 919078842c5SGarance A Drosehn strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul)); 9201d9c5696SJuli Mallett kp->ki_siglist = p->p_siglist; 9211f7d2501SKirk McKusick kp->ki_xstat = p->p_xstat; 9221f7d2501SKirk McKusick kp->ki_acflag = p->p_acflag; 9231f7d2501SKirk McKusick kp->ki_lock = p->p_lock; 9245b5477d7SGleb Smirnoff if (p->p_pptr) { 9258b04bbefSMateusz Guzik kp->ki_ppid = proc_realparent(p)->p_pid; 9268b04bbefSMateusz Guzik if (p->p_flag & P_TRACED) 9278b04bbefSMateusz Guzik kp->ki_tracer = p->p_pptr->p_pid; 928972f9b20SPoul-Henning Kamp } 9295b5477d7SGleb Smirnoff } 930972f9b20SPoul-Henning Kamp 9315032ff81SDon Lewis /* 93200305546SKonstantin Belousov * Fill in information that is thread specific. Must be called with 93300305546SKonstantin Belousov * target process locked. If 'preferthread' is set, overwrite certain 93400305546SKonstantin Belousov * process-related fields that are maintained for both threads and 93500305546SKonstantin Belousov * processes. 9365032ff81SDon Lewis */ 9375032ff81SDon Lewis static void 938d92909c1SRobert Watson fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread) 9395032ff81SDon Lewis { 9405032ff81SDon Lewis struct proc *p; 9415032ff81SDon Lewis 9425032ff81SDon Lewis p = td->td_proc; 9436239ef1dSEd Maste kp->ki_tdaddr = td; 944374ae2a3SJeff Roberson PROC_LOCK_ASSERT(p, MA_OWNED); 9455032ff81SDon Lewis 9462417d97eSJohn Baldwin if (preferthread) 9472417d97eSJohn Baldwin PROC_SLOCK(p); 948982d11f8SJeff Roberson thread_lock(td); 9495032ff81SDon Lewis if (td->td_wmesg != NULL) 9505032ff81SDon Lewis strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg)); 9515032ff81SDon Lewis else 9525032ff81SDon Lewis bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg)); 953925af544SBjoern A. Zeeb strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname)); 9545032ff81SDon Lewis if (TD_ON_LOCK(td)) { 9555032ff81SDon Lewis kp->ki_kiflag |= KI_LOCKBLOCK; 9565032ff81SDon Lewis strlcpy(kp->ki_lockname, td->td_lockname, 9575032ff81SDon Lewis sizeof(kp->ki_lockname)); 9585032ff81SDon Lewis } else { 9595032ff81SDon Lewis kp->ki_kiflag &= ~KI_LOCKBLOCK; 9605032ff81SDon Lewis bzero(kp->ki_lockname, sizeof(kp->ki_lockname)); 9615032ff81SDon Lewis } 9625032ff81SDon Lewis 9636617724cSJeff Roberson if (p->p_state == PRS_NORMAL) { /* approximate. */ 9645032ff81SDon Lewis if (TD_ON_RUNQ(td) || 9655032ff81SDon Lewis TD_CAN_RUN(td) || 9665032ff81SDon Lewis TD_IS_RUNNING(td)) { 9675032ff81SDon Lewis kp->ki_stat = SRUN; 9685032ff81SDon Lewis } else if (P_SHOULDSTOP(p)) { 9695032ff81SDon Lewis kp->ki_stat = SSTOP; 9705032ff81SDon Lewis } else if (TD_IS_SLEEPING(td)) { 9715032ff81SDon Lewis kp->ki_stat = SSLEEP; 9725032ff81SDon Lewis } else if (TD_ON_LOCK(td)) { 9735032ff81SDon Lewis kp->ki_stat = SLOCK; 9745032ff81SDon Lewis } else { 9755032ff81SDon Lewis kp->ki_stat = SWAIT; 9765032ff81SDon Lewis } 9773357835aSDavid Xu } else if (p->p_state == PRS_ZOMBIE) { 9783357835aSDavid Xu kp->ki_stat = SZOMB; 9795032ff81SDon Lewis } else { 9805032ff81SDon Lewis kp->ki_stat = SIDL; 9815032ff81SDon Lewis } 9825032ff81SDon Lewis 9835032ff81SDon Lewis /* Things in the thread */ 9845032ff81SDon Lewis kp->ki_wchan = td->td_wchan; 9855032ff81SDon Lewis kp->ki_pri.pri_level = td->td_priority; 9865032ff81SDon Lewis kp->ki_pri.pri_native = td->td_base_pri; 9875032ff81SDon Lewis kp->ki_lastcpu = td->td_lastcpu; 9885032ff81SDon Lewis kp->ki_oncpu = td->td_oncpu; 9895032ff81SDon Lewis kp->ki_tdflags = td->td_flags; 9905032ff81SDon Lewis kp->ki_tid = td->td_tid; 9915032ff81SDon Lewis kp->ki_numthreads = p->p_numthreads; 9925032ff81SDon Lewis kp->ki_pcb = td->td_pcb; 9935032ff81SDon Lewis kp->ki_kstack = (void *)td->td_kstack; 99454b0e65fSJeff Roberson kp->ki_slptime = (ticks - td->td_slptick) / hz; 9958460a577SJohn Birrell kp->ki_pri.pri_class = td->td_pri_class; 9968460a577SJohn Birrell kp->ki_pri.pri_user = td->td_user_pri; 9975032ff81SDon Lewis 998f8d90480SAttilio Rao if (preferthread) { 9992417d97eSJohn Baldwin rufetchtd(td, &kp->ki_rusage); 1000213c077fSKonstantin Belousov kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime); 1001f8d90480SAttilio Rao kp->ki_pctcpu = sched_pctcpu(td); 1002f8d90480SAttilio Rao kp->ki_estcpu = td->td_estcpu; 10034d34e019SKonstantin Belousov kp->ki_cow = td->td_cow; 1004f8d90480SAttilio Rao } 1005d92909c1SRobert Watson 10065032ff81SDon Lewis /* We can't get this anymore but ps etc never used it anyway. */ 10075032ff81SDon Lewis kp->ki_rqindex = 0; 10085032ff81SDon Lewis 100900305546SKonstantin Belousov if (preferthread) 101000305546SKonstantin Belousov kp->ki_siglist = td->td_siglist; 10115032ff81SDon Lewis kp->ki_sigmask = td->td_sigmask; 1012982d11f8SJeff Roberson thread_unlock(td); 10132417d97eSJohn Baldwin if (preferthread) 10142417d97eSJohn Baldwin PROC_SUNLOCK(p); 10155032ff81SDon Lewis } 10165032ff81SDon Lewis 10175032ff81SDon Lewis /* 10185032ff81SDon Lewis * Fill in a kinfo_proc structure for the specified process. 10195032ff81SDon Lewis * Must be called with the target process locked. 10205032ff81SDon Lewis */ 10215032ff81SDon Lewis void 10225032ff81SDon Lewis fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp) 10235032ff81SDon Lewis { 10245032ff81SDon Lewis 1025f8d90480SAttilio Rao MPASS(FIRST_THREAD_IN_PROC(p) != NULL); 1026f8d90480SAttilio Rao 10275032ff81SDon Lewis fill_kinfo_proc_only(p, kp); 1028d92909c1SRobert Watson fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0); 1029f8d90480SAttilio Rao fill_kinfo_aggregate(p, kp); 10305032ff81SDon Lewis } 10315032ff81SDon Lewis 10328b059651SDavid Schultz struct pstats * 10338b059651SDavid Schultz pstats_alloc(void) 10348b059651SDavid Schultz { 10358b059651SDavid Schultz 10368b059651SDavid Schultz return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK)); 10378b059651SDavid Schultz } 10388b059651SDavid Schultz 10398b059651SDavid Schultz /* 10408b059651SDavid Schultz * Copy parts of p_stats; zero the rest of p_stats (statistics). 10418b059651SDavid Schultz */ 10428b059651SDavid Schultz void 10438b059651SDavid Schultz pstats_fork(struct pstats *src, struct pstats *dst) 10448b059651SDavid Schultz { 10458b059651SDavid Schultz 10468b059651SDavid Schultz bzero(&dst->pstat_startzero, 10476db36923SDavid Schultz __rangeof(struct pstats, pstat_startzero, pstat_endzero)); 10488b059651SDavid Schultz bcopy(&src->pstat_startcopy, &dst->pstat_startcopy, 10496db36923SDavid Schultz __rangeof(struct pstats, pstat_startcopy, pstat_endcopy)); 10508b059651SDavid Schultz } 10518b059651SDavid Schultz 10528b059651SDavid Schultz void 10538b059651SDavid Schultz pstats_free(struct pstats *ps) 10548b059651SDavid Schultz { 10558b059651SDavid Schultz 10568b059651SDavid Schultz free(ps, M_SUBPROC); 10578b059651SDavid Schultz } 10588b059651SDavid Schultz 1059134eb42eSKonstantin Belousov static struct proc * 1060134eb42eSKonstantin Belousov zpfind_locked(pid_t pid) 1061134eb42eSKonstantin Belousov { 1062134eb42eSKonstantin Belousov struct proc *p; 1063134eb42eSKonstantin Belousov 1064134eb42eSKonstantin Belousov sx_assert(&allproc_lock, SX_LOCKED); 1065134eb42eSKonstantin Belousov LIST_FOREACH(p, &zombproc, p_list) { 1066134eb42eSKonstantin Belousov if (p->p_pid == pid) { 1067134eb42eSKonstantin Belousov PROC_LOCK(p); 1068134eb42eSKonstantin Belousov break; 1069134eb42eSKonstantin Belousov } 1070134eb42eSKonstantin Belousov } 1071134eb42eSKonstantin Belousov return (p); 1072134eb42eSKonstantin Belousov } 1073134eb42eSKonstantin Belousov 10748b059651SDavid Schultz /* 107542a4ed99SJohn Baldwin * Locate a zombie process by number 107642a4ed99SJohn Baldwin */ 107742a4ed99SJohn Baldwin struct proc * 10783ce93e4eSPoul-Henning Kamp zpfind(pid_t pid) 10793ce93e4eSPoul-Henning Kamp { 10803ce93e4eSPoul-Henning Kamp struct proc *p; 10813ce93e4eSPoul-Henning Kamp 10821005a129SJohn Baldwin sx_slock(&allproc_lock); 1083134eb42eSKonstantin Belousov p = zpfind_locked(pid); 10841005a129SJohn Baldwin sx_sunlock(&allproc_lock); 10853ce93e4eSPoul-Henning Kamp return (p); 10863ce93e4eSPoul-Henning Kamp } 10873ce93e4eSPoul-Henning Kamp 108805e06d11SKonstantin Belousov #ifdef COMPAT_FREEBSD32 108905e06d11SKonstantin Belousov 109005e06d11SKonstantin Belousov /* 109105e06d11SKonstantin Belousov * This function is typically used to copy out the kernel address, so 109205e06d11SKonstantin Belousov * it can be replaced by assignment of zero. 109305e06d11SKonstantin Belousov */ 109405e06d11SKonstantin Belousov static inline uint32_t 109505e06d11SKonstantin Belousov ptr32_trim(void *ptr) 109605e06d11SKonstantin Belousov { 109705e06d11SKonstantin Belousov uintptr_t uptr; 109805e06d11SKonstantin Belousov 109905e06d11SKonstantin Belousov uptr = (uintptr_t)ptr; 110005e06d11SKonstantin Belousov return ((uptr > UINT_MAX) ? 0 : uptr); 110105e06d11SKonstantin Belousov } 110205e06d11SKonstantin Belousov 110305e06d11SKonstantin Belousov #define PTRTRIM_CP(src,dst,fld) \ 110405e06d11SKonstantin Belousov do { (dst).fld = ptr32_trim((src).fld); } while (0) 110505e06d11SKonstantin Belousov 110605e06d11SKonstantin Belousov static void 110705e06d11SKonstantin Belousov freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32) 110805e06d11SKonstantin Belousov { 110905e06d11SKonstantin Belousov int i; 111005e06d11SKonstantin Belousov 111105e06d11SKonstantin Belousov bzero(ki32, sizeof(struct kinfo_proc32)); 111205e06d11SKonstantin Belousov ki32->ki_structsize = sizeof(struct kinfo_proc32); 111305e06d11SKonstantin Belousov CP(*ki, *ki32, ki_layout); 111405e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_args); 111505e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_paddr); 111605e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_addr); 111705e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_tracep); 111805e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_textvp); 111905e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_fd); 112005e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_vmspace); 112105e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_wchan); 112205e06d11SKonstantin Belousov CP(*ki, *ki32, ki_pid); 112305e06d11SKonstantin Belousov CP(*ki, *ki32, ki_ppid); 112405e06d11SKonstantin Belousov CP(*ki, *ki32, ki_pgid); 112505e06d11SKonstantin Belousov CP(*ki, *ki32, ki_tpgid); 112605e06d11SKonstantin Belousov CP(*ki, *ki32, ki_sid); 112705e06d11SKonstantin Belousov CP(*ki, *ki32, ki_tsid); 112805e06d11SKonstantin Belousov CP(*ki, *ki32, ki_jobc); 112905e06d11SKonstantin Belousov CP(*ki, *ki32, ki_tdev); 113005e06d11SKonstantin Belousov CP(*ki, *ki32, ki_siglist); 113105e06d11SKonstantin Belousov CP(*ki, *ki32, ki_sigmask); 113205e06d11SKonstantin Belousov CP(*ki, *ki32, ki_sigignore); 113305e06d11SKonstantin Belousov CP(*ki, *ki32, ki_sigcatch); 113405e06d11SKonstantin Belousov CP(*ki, *ki32, ki_uid); 113505e06d11SKonstantin Belousov CP(*ki, *ki32, ki_ruid); 113605e06d11SKonstantin Belousov CP(*ki, *ki32, ki_svuid); 113705e06d11SKonstantin Belousov CP(*ki, *ki32, ki_rgid); 113805e06d11SKonstantin Belousov CP(*ki, *ki32, ki_svgid); 113905e06d11SKonstantin Belousov CP(*ki, *ki32, ki_ngroups); 114005e06d11SKonstantin Belousov for (i = 0; i < KI_NGROUPS; i++) 114105e06d11SKonstantin Belousov CP(*ki, *ki32, ki_groups[i]); 114205e06d11SKonstantin Belousov CP(*ki, *ki32, ki_size); 114305e06d11SKonstantin Belousov CP(*ki, *ki32, ki_rssize); 114405e06d11SKonstantin Belousov CP(*ki, *ki32, ki_swrss); 114505e06d11SKonstantin Belousov CP(*ki, *ki32, ki_tsize); 114605e06d11SKonstantin Belousov CP(*ki, *ki32, ki_dsize); 114705e06d11SKonstantin Belousov CP(*ki, *ki32, ki_ssize); 114805e06d11SKonstantin Belousov CP(*ki, *ki32, ki_xstat); 114905e06d11SKonstantin Belousov CP(*ki, *ki32, ki_acflag); 115005e06d11SKonstantin Belousov CP(*ki, *ki32, ki_pctcpu); 115105e06d11SKonstantin Belousov CP(*ki, *ki32, ki_estcpu); 115205e06d11SKonstantin Belousov CP(*ki, *ki32, ki_slptime); 115305e06d11SKonstantin Belousov CP(*ki, *ki32, ki_swtime); 1154371778a3SKonstantin Belousov CP(*ki, *ki32, ki_cow); 115505e06d11SKonstantin Belousov CP(*ki, *ki32, ki_runtime); 115605e06d11SKonstantin Belousov TV_CP(*ki, *ki32, ki_start); 115705e06d11SKonstantin Belousov TV_CP(*ki, *ki32, ki_childtime); 115805e06d11SKonstantin Belousov CP(*ki, *ki32, ki_flag); 115905e06d11SKonstantin Belousov CP(*ki, *ki32, ki_kiflag); 116005e06d11SKonstantin Belousov CP(*ki, *ki32, ki_traceflag); 116105e06d11SKonstantin Belousov CP(*ki, *ki32, ki_stat); 116205e06d11SKonstantin Belousov CP(*ki, *ki32, ki_nice); 116305e06d11SKonstantin Belousov CP(*ki, *ki32, ki_lock); 116405e06d11SKonstantin Belousov CP(*ki, *ki32, ki_rqindex); 116505e06d11SKonstantin Belousov CP(*ki, *ki32, ki_oncpu); 116605e06d11SKonstantin Belousov CP(*ki, *ki32, ki_lastcpu); 1167925af544SBjoern A. Zeeb bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1); 116805e06d11SKonstantin Belousov bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1); 116905e06d11SKonstantin Belousov bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1); 117005e06d11SKonstantin Belousov bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1); 117105e06d11SKonstantin Belousov bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1); 117205e06d11SKonstantin Belousov bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1); 11737123f4cdSEdward Tomasz Napierala bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1); 11748b04bbefSMateusz Guzik CP(*ki, *ki32, ki_tracer); 117555648840SJohn Baldwin CP(*ki, *ki32, ki_flag2); 11765e9ccc87SWill Andrews CP(*ki, *ki32, ki_fibnum); 117705e06d11SKonstantin Belousov CP(*ki, *ki32, ki_cr_flags); 117805e06d11SKonstantin Belousov CP(*ki, *ki32, ki_jid); 117905e06d11SKonstantin Belousov CP(*ki, *ki32, ki_numthreads); 118005e06d11SKonstantin Belousov CP(*ki, *ki32, ki_tid); 118105e06d11SKonstantin Belousov CP(*ki, *ki32, ki_pri); 118205e06d11SKonstantin Belousov freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage); 118305e06d11SKonstantin Belousov freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch); 118405e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_pcb); 118505e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_kstack); 118605e06d11SKonstantin Belousov PTRTRIM_CP(*ki, *ki32, ki_udata); 118705e06d11SKonstantin Belousov CP(*ki, *ki32, ki_sflag); 118805e06d11SKonstantin Belousov CP(*ki, *ki32, ki_tdflags); 118905e06d11SKonstantin Belousov } 119005e06d11SKonstantin Belousov #endif 119105e06d11SKonstantin Belousov 1192fe52cf54SMikolaj Golub int 1193fe52cf54SMikolaj Golub kern_proc_out(struct proc *p, struct sbuf *sb, int flags) 11943ce93e4eSPoul-Henning Kamp { 119530c6f34eSScott Long struct thread *td; 1196fe52cf54SMikolaj Golub struct kinfo_proc ki; 1197fe52cf54SMikolaj Golub #ifdef COMPAT_FREEBSD32 1198fe52cf54SMikolaj Golub struct kinfo_proc32 ki32; 1199fe52cf54SMikolaj Golub #endif 1200fe52cf54SMikolaj Golub int error; 12013ce93e4eSPoul-Henning Kamp 120265c9b430SJohn Baldwin PROC_LOCK_ASSERT(p, MA_OWNED); 1203f8d90480SAttilio Rao MPASS(FIRST_THREAD_IN_PROC(p) != NULL); 120430c6f34eSScott Long 1205fe52cf54SMikolaj Golub error = 0; 1206fe52cf54SMikolaj Golub fill_kinfo_proc(p, &ki); 1207fe52cf54SMikolaj Golub if ((flags & KERN_PROC_NOTHREADS) != 0) { 1208fe52cf54SMikolaj Golub #ifdef COMPAT_FREEBSD32 1209fe52cf54SMikolaj Golub if ((flags & KERN_PROC_MASK32) != 0) { 1210fe52cf54SMikolaj Golub freebsd32_kinfo_proc_out(&ki, &ki32); 1211fe52cf54SMikolaj Golub error = sbuf_bcat(sb, &ki32, sizeof(ki32)); 1212fe52cf54SMikolaj Golub } else 1213fe52cf54SMikolaj Golub #endif 1214fe52cf54SMikolaj Golub error = sbuf_bcat(sb, &ki, sizeof(ki)); 1215fe52cf54SMikolaj Golub } else { 121630c6f34eSScott Long FOREACH_THREAD_IN_PROC(p, td) { 1217fe52cf54SMikolaj Golub fill_kinfo_thread(td, &ki, 1); 1218fe52cf54SMikolaj Golub #ifdef COMPAT_FREEBSD32 1219fe52cf54SMikolaj Golub if ((flags & KERN_PROC_MASK32) != 0) { 1220fe52cf54SMikolaj Golub freebsd32_kinfo_proc_out(&ki, &ki32); 1221fe52cf54SMikolaj Golub error = sbuf_bcat(sb, &ki32, sizeof(ki32)); 1222fe52cf54SMikolaj Golub } else 1223fe52cf54SMikolaj Golub #endif 1224fe52cf54SMikolaj Golub error = sbuf_bcat(sb, &ki, sizeof(ki)); 122530c6f34eSScott Long if (error) 122630c6f34eSScott Long break; 122730c6f34eSScott Long } 122830c6f34eSScott Long } 122930c6f34eSScott Long PROC_UNLOCK(p); 12303ce93e4eSPoul-Henning Kamp return (error); 1231fe52cf54SMikolaj Golub } 1232fe52cf54SMikolaj Golub 1233fe52cf54SMikolaj Golub static int 1234fe52cf54SMikolaj Golub sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags, 1235fe52cf54SMikolaj Golub int doingzomb) 1236fe52cf54SMikolaj Golub { 1237fe52cf54SMikolaj Golub struct sbuf sb; 1238fe52cf54SMikolaj Golub struct kinfo_proc ki; 1239fe52cf54SMikolaj Golub struct proc *np; 1240fe52cf54SMikolaj Golub int error, error2; 1241fe52cf54SMikolaj Golub pid_t pid; 1242fe52cf54SMikolaj Golub 1243fe52cf54SMikolaj Golub pid = p->p_pid; 1244fe52cf54SMikolaj Golub sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req); 1245fe52cf54SMikolaj Golub error = kern_proc_out(p, &sb, flags); 1246fe52cf54SMikolaj Golub error2 = sbuf_finish(&sb); 1247fe52cf54SMikolaj Golub sbuf_delete(&sb); 1248fe52cf54SMikolaj Golub if (error != 0) 1249fe52cf54SMikolaj Golub return (error); 1250fe52cf54SMikolaj Golub else if (error2 != 0) 1251fe52cf54SMikolaj Golub return (error2); 1252fe52cf54SMikolaj Golub if (doingzomb) 125333a9ed9dSJohn Baldwin np = zpfind(pid); 125433a9ed9dSJohn Baldwin else { 125533a9ed9dSJohn Baldwin if (pid == 0) 125633a9ed9dSJohn Baldwin return (0); 125733a9ed9dSJohn Baldwin np = pfind(pid); 125833a9ed9dSJohn Baldwin } 125933a9ed9dSJohn Baldwin if (np == NULL) 1260f308bdddSKevin Lo return (ESRCH); 126133a9ed9dSJohn Baldwin if (np != p) { 126233a9ed9dSJohn Baldwin PROC_UNLOCK(np); 1263f308bdddSKevin Lo return (ESRCH); 126433a9ed9dSJohn Baldwin } 126533a9ed9dSJohn Baldwin PROC_UNLOCK(np); 12663ce93e4eSPoul-Henning Kamp return (0); 12673ce93e4eSPoul-Henning Kamp } 12683ce93e4eSPoul-Henning Kamp 1269972f9b20SPoul-Henning Kamp static int 127082d9ae4eSPoul-Henning Kamp sysctl_kern_proc(SYSCTL_HANDLER_ARGS) 1271972f9b20SPoul-Henning Kamp { 1272972f9b20SPoul-Henning Kamp int *name = (int *)arg1; 1273972f9b20SPoul-Henning Kamp u_int namelen = arg2; 1274972f9b20SPoul-Henning Kamp struct proc *p; 12752648efa6SDaniel Eischen int flags, doingzomb, oid_number; 1276972f9b20SPoul-Henning Kamp int error = 0; 1277972f9b20SPoul-Henning Kamp 12782648efa6SDaniel Eischen oid_number = oidp->oid_number; 12792648efa6SDaniel Eischen if (oid_number != KERN_PROC_ALL && 12802648efa6SDaniel Eischen (oid_number & KERN_PROC_INC_THREAD) == 0) 12812648efa6SDaniel Eischen flags = KERN_PROC_NOTHREADS; 12822648efa6SDaniel Eischen else { 12832648efa6SDaniel Eischen flags = 0; 12842648efa6SDaniel Eischen oid_number &= ~KERN_PROC_INC_THREAD; 12852648efa6SDaniel Eischen } 1286fe52cf54SMikolaj Golub #ifdef COMPAT_FREEBSD32 1287fe52cf54SMikolaj Golub if (req->flags & SCTL_MASK32) 1288fe52cf54SMikolaj Golub flags |= KERN_PROC_MASK32; 1289fe52cf54SMikolaj Golub #endif 12902648efa6SDaniel Eischen if (oid_number == KERN_PROC_PID) { 12913ce93e4eSPoul-Henning Kamp if (namelen != 1) 1292972f9b20SPoul-Henning Kamp return (EINVAL); 12935032ff81SDon Lewis error = sysctl_wire_old_buffer(req, 0); 12945032ff81SDon Lewis if (error) 12955032ff81SDon Lewis return (error); 12968b04bbefSMateusz Guzik sx_slock(&proctree_lock); 1297fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_CANSEE, &p); 12988b04bbefSMateusz Guzik if (error == 0) 1299fe52cf54SMikolaj Golub error = sysctl_out_proc(p, req, flags, 0); 13008b04bbefSMateusz Guzik sx_sunlock(&proctree_lock); 13013ce93e4eSPoul-Henning Kamp return (error); 13023ce93e4eSPoul-Henning Kamp } 13033ddaef40STim J. Robbins 13042648efa6SDaniel Eischen switch (oid_number) { 13053ddaef40STim J. Robbins case KERN_PROC_ALL: 13063ddaef40STim J. Robbins if (namelen != 0) 13073ce93e4eSPoul-Henning Kamp return (EINVAL); 13083ddaef40STim J. Robbins break; 130925e247afSPeter Wemm case KERN_PROC_PROC: 131025e247afSPeter Wemm if (namelen != 0 && namelen != 1) 131125e247afSPeter Wemm return (EINVAL); 131225e247afSPeter Wemm break; 13133ddaef40STim J. Robbins default: 13143ddaef40STim J. Robbins if (namelen != 1) 13153ddaef40STim J. Robbins return (EINVAL); 13163ddaef40STim J. Robbins break; 13173ddaef40STim J. Robbins } 13183ce93e4eSPoul-Henning Kamp 1319972f9b20SPoul-Henning Kamp if (!req->oldptr) { 13203ce93e4eSPoul-Henning Kamp /* overestimate by 5 procs */ 1321972f9b20SPoul-Henning Kamp error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5); 1322972f9b20SPoul-Henning Kamp if (error) 1323972f9b20SPoul-Henning Kamp return (error); 1324972f9b20SPoul-Henning Kamp } 132547934cefSDon Lewis error = sysctl_wire_old_buffer(req, 0); 132647934cefSDon Lewis if (error != 0) 132747934cefSDon Lewis return (error); 13288b04bbefSMateusz Guzik sx_slock(&proctree_lock); 13291005a129SJohn Baldwin sx_slock(&allproc_lock); 13303ce93e4eSPoul-Henning Kamp for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) { 13313ce93e4eSPoul-Henning Kamp if (!doingzomb) 13321b727751SPoul-Henning Kamp p = LIST_FIRST(&allproc); 13333ce93e4eSPoul-Henning Kamp else 13341b727751SPoul-Henning Kamp p = LIST_FIRST(&zombproc); 13351b727751SPoul-Henning Kamp for (; p != 0; p = LIST_NEXT(p, p_list)) { 133602e878d9SJohn Baldwin /* 133702e878d9SJohn Baldwin * Skip embryonic processes. 133802e878d9SJohn Baldwin */ 13398e6fa660SJohn Baldwin PROC_LOCK(p); 134002e878d9SJohn Baldwin if (p->p_state == PRS_NEW) { 13418e6fa660SJohn Baldwin PROC_UNLOCK(p); 134202e878d9SJohn Baldwin continue; 134302e878d9SJohn Baldwin } 1344b241b0a2SJuli Mallett KASSERT(p->p_ucred != NULL, 1345b241b0a2SJuli Mallett ("process credential is NULL for non-NEW proc")); 1346972f9b20SPoul-Henning Kamp /* 1347387d2c03SRobert Watson * Show a user only appropriate processes. 134803f808c5SPaul Saab */ 1349f44d9e24SJohn Baldwin if (p_cansee(curthread, p)) { 135065c9b430SJohn Baldwin PROC_UNLOCK(p); 135103f808c5SPaul Saab continue; 135265c9b430SJohn Baldwin } 135303f808c5SPaul Saab /* 1354972f9b20SPoul-Henning Kamp * TODO - make more efficient (see notes below). 1355972f9b20SPoul-Henning Kamp * do by session. 1356972f9b20SPoul-Henning Kamp */ 13572648efa6SDaniel Eischen switch (oid_number) { 1358972f9b20SPoul-Henning Kamp 1359078842c5SGarance A Drosehn case KERN_PROC_GID: 1360b241b0a2SJuli Mallett if (p->p_ucred->cr_gid != (gid_t)name[0]) { 1361078842c5SGarance A Drosehn PROC_UNLOCK(p); 1362078842c5SGarance A Drosehn continue; 1363078842c5SGarance A Drosehn } 1364078842c5SGarance A Drosehn break; 1365078842c5SGarance A Drosehn 1366972f9b20SPoul-Henning Kamp case KERN_PROC_PGRP: 1367972f9b20SPoul-Henning Kamp /* could do this by traversing pgrp */ 13683ce93e4eSPoul-Henning Kamp if (p->p_pgrp == NULL || 1369f591779bSSeigo Tanimura p->p_pgrp->pg_id != (pid_t)name[0]) { 1370f591779bSSeigo Tanimura PROC_UNLOCK(p); 1371972f9b20SPoul-Henning Kamp continue; 1372f591779bSSeigo Tanimura } 1373972f9b20SPoul-Henning Kamp break; 1374972f9b20SPoul-Henning Kamp 1375b8fdc89dSGarance A Drosehn case KERN_PROC_RGID: 1376b241b0a2SJuli Mallett if (p->p_ucred->cr_rgid != (gid_t)name[0]) { 1377b8fdc89dSGarance A Drosehn PROC_UNLOCK(p); 1378b8fdc89dSGarance A Drosehn continue; 1379b8fdc89dSGarance A Drosehn } 1380b8fdc89dSGarance A Drosehn break; 1381b8fdc89dSGarance A Drosehn 1382b8fdc89dSGarance A Drosehn case KERN_PROC_SESSION: 1383b8fdc89dSGarance A Drosehn if (p->p_session == NULL || 1384b8fdc89dSGarance A Drosehn p->p_session->s_sid != (pid_t)name[0]) { 1385b8fdc89dSGarance A Drosehn PROC_UNLOCK(p); 1386b8fdc89dSGarance A Drosehn continue; 1387b8fdc89dSGarance A Drosehn } 1388b8fdc89dSGarance A Drosehn break; 1389b8fdc89dSGarance A Drosehn 1390972f9b20SPoul-Henning Kamp case KERN_PROC_TTY: 1391972f9b20SPoul-Henning Kamp if ((p->p_flag & P_CONTROLT) == 0 || 1392f591779bSSeigo Tanimura p->p_session == NULL) { 1393f591779bSSeigo Tanimura PROC_UNLOCK(p); 1394972f9b20SPoul-Henning Kamp continue; 1395f591779bSSeigo Tanimura } 1396bc093719SEd Schouten /* XXX proctree_lock */ 1397f591779bSSeigo Tanimura SESS_LOCK(p->p_session); 1398f591779bSSeigo Tanimura if (p->p_session->s_ttyp == NULL || 1399bc093719SEd Schouten tty_udev(p->p_session->s_ttyp) != 1400f3732fd1SPoul-Henning Kamp (dev_t)name[0]) { 1401f591779bSSeigo Tanimura SESS_UNLOCK(p->p_session); 1402f591779bSSeigo Tanimura PROC_UNLOCK(p); 1403f591779bSSeigo Tanimura continue; 1404f591779bSSeigo Tanimura } 1405f591779bSSeigo Tanimura SESS_UNLOCK(p->p_session); 1406972f9b20SPoul-Henning Kamp break; 1407972f9b20SPoul-Henning Kamp 1408972f9b20SPoul-Henning Kamp case KERN_PROC_UID: 1409b241b0a2SJuli Mallett if (p->p_ucred->cr_uid != (uid_t)name[0]) { 141065c9b430SJohn Baldwin PROC_UNLOCK(p); 1411972f9b20SPoul-Henning Kamp continue; 141265c9b430SJohn Baldwin } 1413972f9b20SPoul-Henning Kamp break; 1414972f9b20SPoul-Henning Kamp 1415972f9b20SPoul-Henning Kamp case KERN_PROC_RUID: 1416b241b0a2SJuli Mallett if (p->p_ucred->cr_ruid != (uid_t)name[0]) { 141765c9b430SJohn Baldwin PROC_UNLOCK(p); 1418972f9b20SPoul-Henning Kamp continue; 141965c9b430SJohn Baldwin } 1420972f9b20SPoul-Henning Kamp break; 142130c6f34eSScott Long 142230c6f34eSScott Long case KERN_PROC_PROC: 142330c6f34eSScott Long break; 142430c6f34eSScott Long 142530c6f34eSScott Long default: 142630c6f34eSScott Long break; 142730c6f34eSScott Long 1428972f9b20SPoul-Henning Kamp } 1429972f9b20SPoul-Henning Kamp 1430fe52cf54SMikolaj Golub error = sysctl_out_proc(p, req, flags, doingzomb); 1431553629ebSJake Burkholder if (error) { 14321005a129SJohn Baldwin sx_sunlock(&allproc_lock); 14338b04bbefSMateusz Guzik sx_sunlock(&proctree_lock); 1434972f9b20SPoul-Henning Kamp return (error); 1435972f9b20SPoul-Henning Kamp } 1436972f9b20SPoul-Henning Kamp } 1437553629ebSJake Burkholder } 14381005a129SJohn Baldwin sx_sunlock(&allproc_lock); 14398b04bbefSMateusz Guzik sx_sunlock(&proctree_lock); 1440972f9b20SPoul-Henning Kamp return (0); 1441972f9b20SPoul-Henning Kamp } 1442972f9b20SPoul-Henning Kamp 1443c1508b28SAlfred Perlstein struct pargs * 1444c1508b28SAlfred Perlstein pargs_alloc(int len) 1445c1508b28SAlfred Perlstein { 1446c1508b28SAlfred Perlstein struct pargs *pa; 1447c1508b28SAlfred Perlstein 14481ede983cSDag-Erling Smørgrav pa = malloc(sizeof(struct pargs) + len, M_PARGS, 1449a163d034SWarner Losh M_WAITOK); 145055b4a5aeSJohn Baldwin refcount_init(&pa->ar_ref, 1); 1451c1508b28SAlfred Perlstein pa->ar_length = len; 1452c1508b28SAlfred Perlstein return (pa); 1453c1508b28SAlfred Perlstein } 1454c1508b28SAlfred Perlstein 145558e8af1bSKonstantin Belousov static void 1456c1508b28SAlfred Perlstein pargs_free(struct pargs *pa) 1457c1508b28SAlfred Perlstein { 1458c1508b28SAlfred Perlstein 14591ede983cSDag-Erling Smørgrav free(pa, M_PARGS); 1460c1508b28SAlfred Perlstein } 1461c1508b28SAlfred Perlstein 1462c1508b28SAlfred Perlstein void 1463c1508b28SAlfred Perlstein pargs_hold(struct pargs *pa) 1464c1508b28SAlfred Perlstein { 1465c1508b28SAlfred Perlstein 1466c1508b28SAlfred Perlstein if (pa == NULL) 1467c1508b28SAlfred Perlstein return; 146855b4a5aeSJohn Baldwin refcount_acquire(&pa->ar_ref); 1469c1508b28SAlfred Perlstein } 1470c1508b28SAlfred Perlstein 1471c1508b28SAlfred Perlstein void 1472c1508b28SAlfred Perlstein pargs_drop(struct pargs *pa) 1473c1508b28SAlfred Perlstein { 1474c1508b28SAlfred Perlstein 1475c1508b28SAlfred Perlstein if (pa == NULL) 1476c1508b28SAlfred Perlstein return; 147755b4a5aeSJohn Baldwin if (refcount_release(&pa->ar_ref)) 1478c1508b28SAlfred Perlstein pargs_free(pa); 1479c1508b28SAlfred Perlstein } 1480c1508b28SAlfred Perlstein 1481c5cfcb1cSMikolaj Golub static int 1482c5cfcb1cSMikolaj Golub proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf, 1483c5cfcb1cSMikolaj Golub size_t len) 1484c5cfcb1cSMikolaj Golub { 1485c5cfcb1cSMikolaj Golub struct iovec iov; 1486c5cfcb1cSMikolaj Golub struct uio uio; 1487c5cfcb1cSMikolaj Golub 1488c5cfcb1cSMikolaj Golub iov.iov_base = (caddr_t)buf; 1489c5cfcb1cSMikolaj Golub iov.iov_len = len; 1490c5cfcb1cSMikolaj Golub uio.uio_iov = &iov; 1491c5cfcb1cSMikolaj Golub uio.uio_iovcnt = 1; 1492c5cfcb1cSMikolaj Golub uio.uio_offset = offset; 1493c5cfcb1cSMikolaj Golub uio.uio_resid = (ssize_t)len; 1494c5cfcb1cSMikolaj Golub uio.uio_segflg = UIO_SYSSPACE; 1495c5cfcb1cSMikolaj Golub uio.uio_rw = UIO_READ; 1496c5cfcb1cSMikolaj Golub uio.uio_td = td; 1497c5cfcb1cSMikolaj Golub 1498c5cfcb1cSMikolaj Golub return (proc_rwmem(p, &uio)); 1499c5cfcb1cSMikolaj Golub } 1500c5cfcb1cSMikolaj Golub 1501c5cfcb1cSMikolaj Golub static int 1502c5cfcb1cSMikolaj Golub proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf, 1503c5cfcb1cSMikolaj Golub size_t len) 1504c5cfcb1cSMikolaj Golub { 1505c5cfcb1cSMikolaj Golub size_t i; 1506c5cfcb1cSMikolaj Golub int error; 1507c5cfcb1cSMikolaj Golub 1508c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len); 1509c5cfcb1cSMikolaj Golub /* 1510c5cfcb1cSMikolaj Golub * Reading the chunk may validly return EFAULT if the string is shorter 1511c5cfcb1cSMikolaj Golub * than the chunk and is aligned at the end of the page, assuming the 1512c5cfcb1cSMikolaj Golub * next page is not mapped. So if EFAULT is returned do a fallback to 1513c5cfcb1cSMikolaj Golub * one byte read loop. 1514c5cfcb1cSMikolaj Golub */ 1515c5cfcb1cSMikolaj Golub if (error == EFAULT) { 1516c5cfcb1cSMikolaj Golub for (i = 0; i < len; i++, buf++, sptr++) { 1517c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1); 1518c5cfcb1cSMikolaj Golub if (error != 0) 1519c5cfcb1cSMikolaj Golub return (error); 1520c5cfcb1cSMikolaj Golub if (*buf == '\0') 1521c5cfcb1cSMikolaj Golub break; 1522c5cfcb1cSMikolaj Golub } 1523c5cfcb1cSMikolaj Golub error = 0; 1524c5cfcb1cSMikolaj Golub } 1525c5cfcb1cSMikolaj Golub return (error); 1526c5cfcb1cSMikolaj Golub } 1527c5cfcb1cSMikolaj Golub 1528c5cfcb1cSMikolaj Golub #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */ 1529c5cfcb1cSMikolaj Golub 1530c5cfcb1cSMikolaj Golub enum proc_vector_type { 1531c5cfcb1cSMikolaj Golub PROC_ARG, 1532c5cfcb1cSMikolaj Golub PROC_ENV, 1533c5cfcb1cSMikolaj Golub PROC_AUX, 1534c5cfcb1cSMikolaj Golub }; 1535c5cfcb1cSMikolaj Golub 1536c5cfcb1cSMikolaj Golub #ifdef COMPAT_FREEBSD32 1537c5cfcb1cSMikolaj Golub static int 1538c5cfcb1cSMikolaj Golub get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp, 1539c5cfcb1cSMikolaj Golub size_t *vsizep, enum proc_vector_type type) 1540c5cfcb1cSMikolaj Golub { 1541c5cfcb1cSMikolaj Golub struct freebsd32_ps_strings pss; 1542c5cfcb1cSMikolaj Golub Elf32_Auxinfo aux; 1543c5cfcb1cSMikolaj Golub vm_offset_t vptr, ptr; 1544c5cfcb1cSMikolaj Golub uint32_t *proc_vector32; 1545c5cfcb1cSMikolaj Golub char **proc_vector; 1546c5cfcb1cSMikolaj Golub size_t vsize, size; 1547c5cfcb1cSMikolaj Golub int i, error; 1548c5cfcb1cSMikolaj Golub 1549c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings), 1550c5cfcb1cSMikolaj Golub &pss, sizeof(pss)); 1551c5cfcb1cSMikolaj Golub if (error != 0) 1552c5cfcb1cSMikolaj Golub return (error); 1553c5cfcb1cSMikolaj Golub switch (type) { 1554c5cfcb1cSMikolaj Golub case PROC_ARG: 1555c5cfcb1cSMikolaj Golub vptr = (vm_offset_t)PTRIN(pss.ps_argvstr); 1556c5cfcb1cSMikolaj Golub vsize = pss.ps_nargvstr; 1557c5cfcb1cSMikolaj Golub if (vsize > ARG_MAX) 1558c5cfcb1cSMikolaj Golub return (ENOEXEC); 1559c5cfcb1cSMikolaj Golub size = vsize * sizeof(int32_t); 1560c5cfcb1cSMikolaj Golub break; 1561c5cfcb1cSMikolaj Golub case PROC_ENV: 1562c5cfcb1cSMikolaj Golub vptr = (vm_offset_t)PTRIN(pss.ps_envstr); 1563c5cfcb1cSMikolaj Golub vsize = pss.ps_nenvstr; 1564c5cfcb1cSMikolaj Golub if (vsize > ARG_MAX) 1565c5cfcb1cSMikolaj Golub return (ENOEXEC); 1566c5cfcb1cSMikolaj Golub size = vsize * sizeof(int32_t); 1567c5cfcb1cSMikolaj Golub break; 1568c5cfcb1cSMikolaj Golub case PROC_AUX: 1569c5cfcb1cSMikolaj Golub vptr = (vm_offset_t)PTRIN(pss.ps_envstr) + 1570c5cfcb1cSMikolaj Golub (pss.ps_nenvstr + 1) * sizeof(int32_t); 1571c5cfcb1cSMikolaj Golub if (vptr % 4 != 0) 1572c5cfcb1cSMikolaj Golub return (ENOEXEC); 1573c5cfcb1cSMikolaj Golub for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) { 1574c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, ptr, &aux, sizeof(aux)); 1575c5cfcb1cSMikolaj Golub if (error != 0) 1576c5cfcb1cSMikolaj Golub return (error); 1577c5cfcb1cSMikolaj Golub if (aux.a_type == AT_NULL) 1578c5cfcb1cSMikolaj Golub break; 1579c5cfcb1cSMikolaj Golub ptr += sizeof(aux); 1580c5cfcb1cSMikolaj Golub } 1581c5cfcb1cSMikolaj Golub if (aux.a_type != AT_NULL) 1582c5cfcb1cSMikolaj Golub return (ENOEXEC); 1583c5cfcb1cSMikolaj Golub vsize = i + 1; 1584c5cfcb1cSMikolaj Golub size = vsize * sizeof(aux); 1585c5cfcb1cSMikolaj Golub break; 1586c5cfcb1cSMikolaj Golub default: 1587c5cfcb1cSMikolaj Golub KASSERT(0, ("Wrong proc vector type: %d", type)); 15887ad9baaeSMikolaj Golub return (EINVAL); 1589c5cfcb1cSMikolaj Golub } 1590c5cfcb1cSMikolaj Golub proc_vector32 = malloc(size, M_TEMP, M_WAITOK); 1591c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, vptr, proc_vector32, size); 1592c5cfcb1cSMikolaj Golub if (error != 0) 1593c5cfcb1cSMikolaj Golub goto done; 1594c5cfcb1cSMikolaj Golub if (type == PROC_AUX) { 1595c5cfcb1cSMikolaj Golub *proc_vectorp = (char **)proc_vector32; 1596c5cfcb1cSMikolaj Golub *vsizep = vsize; 1597c5cfcb1cSMikolaj Golub return (0); 1598c5cfcb1cSMikolaj Golub } 1599c5cfcb1cSMikolaj Golub proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK); 1600c5cfcb1cSMikolaj Golub for (i = 0; i < (int)vsize; i++) 1601c5cfcb1cSMikolaj Golub proc_vector[i] = PTRIN(proc_vector32[i]); 1602c5cfcb1cSMikolaj Golub *proc_vectorp = proc_vector; 1603c5cfcb1cSMikolaj Golub *vsizep = vsize; 1604c5cfcb1cSMikolaj Golub done: 1605c5cfcb1cSMikolaj Golub free(proc_vector32, M_TEMP); 1606c5cfcb1cSMikolaj Golub return (error); 1607c5cfcb1cSMikolaj Golub } 1608c5cfcb1cSMikolaj Golub #endif 1609c5cfcb1cSMikolaj Golub 1610c5cfcb1cSMikolaj Golub static int 1611c5cfcb1cSMikolaj Golub get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp, 1612c5cfcb1cSMikolaj Golub size_t *vsizep, enum proc_vector_type type) 1613c5cfcb1cSMikolaj Golub { 1614c5cfcb1cSMikolaj Golub struct ps_strings pss; 1615c5cfcb1cSMikolaj Golub Elf_Auxinfo aux; 1616c5cfcb1cSMikolaj Golub vm_offset_t vptr, ptr; 1617c5cfcb1cSMikolaj Golub char **proc_vector; 1618c5cfcb1cSMikolaj Golub size_t vsize, size; 1619c5cfcb1cSMikolaj Golub int error, i; 1620c5cfcb1cSMikolaj Golub 1621c5cfcb1cSMikolaj Golub #ifdef COMPAT_FREEBSD32 1622c5cfcb1cSMikolaj Golub if (SV_PROC_FLAG(p, SV_ILP32) != 0) 1623c5cfcb1cSMikolaj Golub return (get_proc_vector32(td, p, proc_vectorp, vsizep, type)); 1624c5cfcb1cSMikolaj Golub #endif 1625c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings), 1626c5cfcb1cSMikolaj Golub &pss, sizeof(pss)); 1627c5cfcb1cSMikolaj Golub if (error != 0) 1628c5cfcb1cSMikolaj Golub return (error); 1629c5cfcb1cSMikolaj Golub switch (type) { 1630c5cfcb1cSMikolaj Golub case PROC_ARG: 1631c5cfcb1cSMikolaj Golub vptr = (vm_offset_t)pss.ps_argvstr; 1632c5cfcb1cSMikolaj Golub vsize = pss.ps_nargvstr; 1633c5cfcb1cSMikolaj Golub if (vsize > ARG_MAX) 1634c5cfcb1cSMikolaj Golub return (ENOEXEC); 1635c5cfcb1cSMikolaj Golub size = vsize * sizeof(char *); 1636c5cfcb1cSMikolaj Golub break; 1637c5cfcb1cSMikolaj Golub case PROC_ENV: 1638c5cfcb1cSMikolaj Golub vptr = (vm_offset_t)pss.ps_envstr; 1639c5cfcb1cSMikolaj Golub vsize = pss.ps_nenvstr; 1640c5cfcb1cSMikolaj Golub if (vsize > ARG_MAX) 1641c5cfcb1cSMikolaj Golub return (ENOEXEC); 1642c5cfcb1cSMikolaj Golub size = vsize * sizeof(char *); 1643c5cfcb1cSMikolaj Golub break; 1644c5cfcb1cSMikolaj Golub case PROC_AUX: 1645c5cfcb1cSMikolaj Golub /* 1646c5cfcb1cSMikolaj Golub * The aux array is just above env array on the stack. Check 1647c5cfcb1cSMikolaj Golub * that the address is naturally aligned. 1648c5cfcb1cSMikolaj Golub */ 1649c5cfcb1cSMikolaj Golub vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1) 1650c5cfcb1cSMikolaj Golub * sizeof(char *); 1651c5cfcb1cSMikolaj Golub #if __ELF_WORD_SIZE == 64 1652c5cfcb1cSMikolaj Golub if (vptr % sizeof(uint64_t) != 0) 1653c5cfcb1cSMikolaj Golub #else 1654c5cfcb1cSMikolaj Golub if (vptr % sizeof(uint32_t) != 0) 1655c5cfcb1cSMikolaj Golub #endif 1656c5cfcb1cSMikolaj Golub return (ENOEXEC); 1657c5cfcb1cSMikolaj Golub /* 1658c5cfcb1cSMikolaj Golub * We count the array size reading the aux vectors from the 1659c5cfcb1cSMikolaj Golub * stack until AT_NULL vector is returned. So (to keep the code 1660c5cfcb1cSMikolaj Golub * simple) we read the process stack twice: the first time here 1661c5cfcb1cSMikolaj Golub * to find the size and the second time when copying the vectors 1662c5cfcb1cSMikolaj Golub * to the allocated proc_vector. 1663c5cfcb1cSMikolaj Golub */ 1664c5cfcb1cSMikolaj Golub for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) { 1665c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, ptr, &aux, sizeof(aux)); 1666c5cfcb1cSMikolaj Golub if (error != 0) 1667c5cfcb1cSMikolaj Golub return (error); 1668c5cfcb1cSMikolaj Golub if (aux.a_type == AT_NULL) 1669c5cfcb1cSMikolaj Golub break; 1670c5cfcb1cSMikolaj Golub ptr += sizeof(aux); 1671c5cfcb1cSMikolaj Golub } 1672c5cfcb1cSMikolaj Golub /* 1673c5cfcb1cSMikolaj Golub * If the PROC_AUXV_MAX entries are iterated over, and we have 1674c5cfcb1cSMikolaj Golub * not reached AT_NULL, it is most likely we are reading wrong 1675c5cfcb1cSMikolaj Golub * data: either the process doesn't have auxv array or data has 1676c5cfcb1cSMikolaj Golub * been modified. Return the error in this case. 1677c5cfcb1cSMikolaj Golub */ 1678c5cfcb1cSMikolaj Golub if (aux.a_type != AT_NULL) 1679c5cfcb1cSMikolaj Golub return (ENOEXEC); 1680c5cfcb1cSMikolaj Golub vsize = i + 1; 1681c5cfcb1cSMikolaj Golub size = vsize * sizeof(aux); 1682c5cfcb1cSMikolaj Golub break; 1683c5cfcb1cSMikolaj Golub default: 1684c5cfcb1cSMikolaj Golub KASSERT(0, ("Wrong proc vector type: %d", type)); 16857ad9baaeSMikolaj Golub return (EINVAL); /* In case we are built without INVARIANTS. */ 1686c5cfcb1cSMikolaj Golub } 1687c5cfcb1cSMikolaj Golub proc_vector = malloc(size, M_TEMP, M_WAITOK); 1688c5cfcb1cSMikolaj Golub if (proc_vector == NULL) 1689c5cfcb1cSMikolaj Golub return (ENOMEM); 1690c5cfcb1cSMikolaj Golub error = proc_read_mem(td, p, vptr, proc_vector, size); 1691c5cfcb1cSMikolaj Golub if (error != 0) { 1692c5cfcb1cSMikolaj Golub free(proc_vector, M_TEMP); 1693c5cfcb1cSMikolaj Golub return (error); 1694c5cfcb1cSMikolaj Golub } 1695c5cfcb1cSMikolaj Golub *proc_vectorp = proc_vector; 1696c5cfcb1cSMikolaj Golub *vsizep = vsize; 1697c5cfcb1cSMikolaj Golub 1698c5cfcb1cSMikolaj Golub return (0); 1699c5cfcb1cSMikolaj Golub } 1700c5cfcb1cSMikolaj Golub 1701c5cfcb1cSMikolaj Golub #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */ 1702c5cfcb1cSMikolaj Golub 1703c5cfcb1cSMikolaj Golub static int 1704c5cfcb1cSMikolaj Golub get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb, 1705fe7f89b7SMikolaj Golub enum proc_vector_type type) 1706c5cfcb1cSMikolaj Golub { 1707fe7f89b7SMikolaj Golub size_t done, len, nchr, vsize; 1708c5cfcb1cSMikolaj Golub int error, i; 1709c5cfcb1cSMikolaj Golub char **proc_vector, *sptr; 1710c5cfcb1cSMikolaj Golub char pss_string[GET_PS_STRINGS_CHUNK_SZ]; 1711c5cfcb1cSMikolaj Golub 1712c5cfcb1cSMikolaj Golub PROC_ASSERT_HELD(p); 1713c5cfcb1cSMikolaj Golub 1714c5cfcb1cSMikolaj Golub /* 1715c5cfcb1cSMikolaj Golub * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes. 1716c5cfcb1cSMikolaj Golub */ 1717c5cfcb1cSMikolaj Golub nchr = 2 * (PATH_MAX + ARG_MAX); 1718c5cfcb1cSMikolaj Golub 1719c5cfcb1cSMikolaj Golub error = get_proc_vector(td, p, &proc_vector, &vsize, type); 1720c5cfcb1cSMikolaj Golub if (error != 0) 1721c5cfcb1cSMikolaj Golub return (error); 1722c5cfcb1cSMikolaj Golub for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) { 1723c5cfcb1cSMikolaj Golub /* 1724c5cfcb1cSMikolaj Golub * The program may have scribbled into its argv array, e.g. to 1725c5cfcb1cSMikolaj Golub * remove some arguments. If that has happened, break out 1726c5cfcb1cSMikolaj Golub * before trying to read from NULL. 1727c5cfcb1cSMikolaj Golub */ 1728c5cfcb1cSMikolaj Golub if (proc_vector[i] == NULL) 1729c5cfcb1cSMikolaj Golub break; 1730c5cfcb1cSMikolaj Golub for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) { 1731c5cfcb1cSMikolaj Golub error = proc_read_string(td, p, sptr, pss_string, 1732c5cfcb1cSMikolaj Golub sizeof(pss_string)); 1733c5cfcb1cSMikolaj Golub if (error != 0) 1734c5cfcb1cSMikolaj Golub goto done; 1735c5cfcb1cSMikolaj Golub len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ); 1736c5cfcb1cSMikolaj Golub if (done + len >= nchr) 1737c5cfcb1cSMikolaj Golub len = nchr - done - 1; 1738c5cfcb1cSMikolaj Golub sbuf_bcat(sb, pss_string, len); 1739c5cfcb1cSMikolaj Golub if (len != GET_PS_STRINGS_CHUNK_SZ) 1740c5cfcb1cSMikolaj Golub break; 1741c5cfcb1cSMikolaj Golub done += GET_PS_STRINGS_CHUNK_SZ; 1742c5cfcb1cSMikolaj Golub } 1743c5cfcb1cSMikolaj Golub sbuf_bcat(sb, "", 1); 1744c5cfcb1cSMikolaj Golub done += len + 1; 1745c5cfcb1cSMikolaj Golub } 1746c5cfcb1cSMikolaj Golub done: 1747c5cfcb1cSMikolaj Golub free(proc_vector, M_TEMP); 1748c5cfcb1cSMikolaj Golub return (error); 1749c5cfcb1cSMikolaj Golub } 1750c5cfcb1cSMikolaj Golub 1751c5cfcb1cSMikolaj Golub int 1752fe7f89b7SMikolaj Golub proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb) 1753c5cfcb1cSMikolaj Golub { 1754c5cfcb1cSMikolaj Golub 1755fe7f89b7SMikolaj Golub return (get_ps_strings(curthread, p, sb, PROC_ARG)); 1756c5cfcb1cSMikolaj Golub } 1757c5cfcb1cSMikolaj Golub 1758c5cfcb1cSMikolaj Golub int 1759fe7f89b7SMikolaj Golub proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb) 1760c5cfcb1cSMikolaj Golub { 1761c5cfcb1cSMikolaj Golub 1762fe7f89b7SMikolaj Golub return (get_ps_strings(curthread, p, sb, PROC_ENV)); 1763c5cfcb1cSMikolaj Golub } 1764c5cfcb1cSMikolaj Golub 17655ea21e69SMikolaj Golub int 17665ea21e69SMikolaj Golub proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb) 17675ea21e69SMikolaj Golub { 17685ea21e69SMikolaj Golub size_t vsize, size; 17695ea21e69SMikolaj Golub char **auxv; 17705ea21e69SMikolaj Golub int error; 17715ea21e69SMikolaj Golub 17725ea21e69SMikolaj Golub error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX); 17735ea21e69SMikolaj Golub if (error == 0) { 17745ea21e69SMikolaj Golub #ifdef COMPAT_FREEBSD32 17755ea21e69SMikolaj Golub if (SV_PROC_FLAG(p, SV_ILP32) != 0) 17765ea21e69SMikolaj Golub size = vsize * sizeof(Elf32_Auxinfo); 17775ea21e69SMikolaj Golub else 17785ea21e69SMikolaj Golub #endif 17795ea21e69SMikolaj Golub size = vsize * sizeof(Elf_Auxinfo); 17805ea21e69SMikolaj Golub error = sbuf_bcat(sb, auxv, size); 17815ea21e69SMikolaj Golub free(auxv, M_TEMP); 17825ea21e69SMikolaj Golub } 17835ea21e69SMikolaj Golub return (error); 17845ea21e69SMikolaj Golub } 17855ea21e69SMikolaj Golub 1786b9df5231SPoul-Henning Kamp /* 1787b9df5231SPoul-Henning Kamp * This sysctl allows a process to retrieve the argument list or process 1788b9df5231SPoul-Henning Kamp * title for another process without groping around in the address space 1789b9df5231SPoul-Henning Kamp * of the other process. It also allow a process to set its own "process 1790b9df5231SPoul-Henning Kamp * title to a string of its own choice. 1791b9df5231SPoul-Henning Kamp */ 1792b9df5231SPoul-Henning Kamp static int 179382d9ae4eSPoul-Henning Kamp sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS) 1794b9df5231SPoul-Henning Kamp { 1795b9df5231SPoul-Henning Kamp int *name = (int *)arg1; 1796b9df5231SPoul-Henning Kamp u_int namelen = arg2; 17978510f2a8SJohn Baldwin struct pargs *newpa, *pa; 1798b9df5231SPoul-Henning Kamp struct proc *p; 1799c5cfcb1cSMikolaj Golub struct sbuf sb; 1800fa3935bcSMikolaj Golub int flags, error = 0, error2; 1801b9df5231SPoul-Henning Kamp 1802b9df5231SPoul-Henning Kamp if (namelen != 1) 1803b9df5231SPoul-Henning Kamp return (EINVAL); 1804b9df5231SPoul-Henning Kamp 1805fa3935bcSMikolaj Golub flags = PGET_CANSEE; 1806fa3935bcSMikolaj Golub if (req->newptr != NULL) 1807fa3935bcSMikolaj Golub flags |= PGET_ISCURRENT; 1808fa3935bcSMikolaj Golub error = pget((pid_t)name[0], flags, &p); 1809fa3935bcSMikolaj Golub if (error) 1810e76bad96SRobert Drehmel return (error); 1811b9df5231SPoul-Henning Kamp 18127b11fea6SAlfred Perlstein pa = p->p_args; 1813c5cfcb1cSMikolaj Golub if (pa != NULL) { 18147b11fea6SAlfred Perlstein pargs_hold(pa); 18157b11fea6SAlfred Perlstein PROC_UNLOCK(p); 18167b11fea6SAlfred Perlstein error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length); 18177b11fea6SAlfred Perlstein pargs_drop(pa); 1818c5cfcb1cSMikolaj Golub } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) { 1819c5cfcb1cSMikolaj Golub _PHOLD(p); 1820c5cfcb1cSMikolaj Golub PROC_UNLOCK(p); 1821c5cfcb1cSMikolaj Golub sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req); 1822fe7f89b7SMikolaj Golub error = proc_getargv(curthread, p, &sb); 1823c5cfcb1cSMikolaj Golub error2 = sbuf_finish(&sb); 1824c5cfcb1cSMikolaj Golub PRELE(p); 1825c5cfcb1cSMikolaj Golub sbuf_delete(&sb); 1826c5cfcb1cSMikolaj Golub if (error == 0 && error2 != 0) 1827c5cfcb1cSMikolaj Golub error = error2; 1828c5cfcb1cSMikolaj Golub } else { 1829c5cfcb1cSMikolaj Golub PROC_UNLOCK(p); 1830c5cfcb1cSMikolaj Golub } 18318510f2a8SJohn Baldwin if (error != 0 || req->newptr == NULL) 1832b9df5231SPoul-Henning Kamp return (error); 1833b9df5231SPoul-Henning Kamp 1834b9df5231SPoul-Henning Kamp if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit) 18358510f2a8SJohn Baldwin return (ENOMEM); 18364bc6471bSJohn Baldwin newpa = pargs_alloc(req->newlen); 18374bc6471bSJohn Baldwin error = SYSCTL_IN(req, newpa->ar_args, req->newlen); 18388510f2a8SJohn Baldwin if (error != 0) { 18394bc6471bSJohn Baldwin pargs_free(newpa); 1840b9df5231SPoul-Henning Kamp return (error); 1841b9df5231SPoul-Henning Kamp } 18424bc6471bSJohn Baldwin PROC_LOCK(p); 18434bc6471bSJohn Baldwin pa = p->p_args; 18444bc6471bSJohn Baldwin p->p_args = newpa; 18454bc6471bSJohn Baldwin PROC_UNLOCK(p); 18464bc6471bSJohn Baldwin pargs_drop(pa); 18474bc6471bSJohn Baldwin return (0); 18484bc6471bSJohn Baldwin } 18494bc6471bSJohn Baldwin 1850fe769cddSDavid Schultz /* 1851c5cfcb1cSMikolaj Golub * This sysctl allows a process to retrieve environment of another process. 1852c5cfcb1cSMikolaj Golub */ 1853c5cfcb1cSMikolaj Golub static int 1854c5cfcb1cSMikolaj Golub sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS) 1855c5cfcb1cSMikolaj Golub { 1856c5cfcb1cSMikolaj Golub int *name = (int *)arg1; 1857c5cfcb1cSMikolaj Golub u_int namelen = arg2; 1858c5cfcb1cSMikolaj Golub struct proc *p; 1859c5cfcb1cSMikolaj Golub struct sbuf sb; 1860c5cfcb1cSMikolaj Golub int error, error2; 1861c5cfcb1cSMikolaj Golub 1862c5cfcb1cSMikolaj Golub if (namelen != 1) 1863c5cfcb1cSMikolaj Golub return (EINVAL); 1864c5cfcb1cSMikolaj Golub 1865fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_WANTREAD, &p); 1866fa3935bcSMikolaj Golub if (error != 0) 1867c5cfcb1cSMikolaj Golub return (error); 1868c5cfcb1cSMikolaj Golub if ((p->p_flag & P_SYSTEM) != 0) { 1869fa3935bcSMikolaj Golub PRELE(p); 1870c5cfcb1cSMikolaj Golub return (0); 1871c5cfcb1cSMikolaj Golub } 1872fa3935bcSMikolaj Golub 1873c5cfcb1cSMikolaj Golub sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req); 1874fe7f89b7SMikolaj Golub error = proc_getenvv(curthread, p, &sb); 1875c5cfcb1cSMikolaj Golub error2 = sbuf_finish(&sb); 1876c5cfcb1cSMikolaj Golub PRELE(p); 1877c5cfcb1cSMikolaj Golub sbuf_delete(&sb); 1878c5cfcb1cSMikolaj Golub return (error != 0 ? error : error2); 1879c5cfcb1cSMikolaj Golub } 1880c5cfcb1cSMikolaj Golub 1881c5cfcb1cSMikolaj Golub /* 1882c5cfcb1cSMikolaj Golub * This sysctl allows a process to retrieve ELF auxiliary vector of 1883c5cfcb1cSMikolaj Golub * another process. 1884c5cfcb1cSMikolaj Golub */ 1885c5cfcb1cSMikolaj Golub static int 1886c5cfcb1cSMikolaj Golub sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS) 1887c5cfcb1cSMikolaj Golub { 1888c5cfcb1cSMikolaj Golub int *name = (int *)arg1; 1889c5cfcb1cSMikolaj Golub u_int namelen = arg2; 1890c5cfcb1cSMikolaj Golub struct proc *p; 18915ea21e69SMikolaj Golub struct sbuf sb; 18925ea21e69SMikolaj Golub int error, error2; 1893c5cfcb1cSMikolaj Golub 1894c5cfcb1cSMikolaj Golub if (namelen != 1) 1895c5cfcb1cSMikolaj Golub return (EINVAL); 1896c5cfcb1cSMikolaj Golub 1897fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_WANTREAD, &p); 1898fa3935bcSMikolaj Golub if (error != 0) 1899c5cfcb1cSMikolaj Golub return (error); 1900c5cfcb1cSMikolaj Golub if ((p->p_flag & P_SYSTEM) != 0) { 1901fa3935bcSMikolaj Golub PRELE(p); 1902c5cfcb1cSMikolaj Golub return (0); 1903c5cfcb1cSMikolaj Golub } 19045ea21e69SMikolaj Golub sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req); 19055ea21e69SMikolaj Golub error = proc_getauxv(curthread, p, &sb); 19065ea21e69SMikolaj Golub error2 = sbuf_finish(&sb); 19074fd6053bSMikolaj Golub PRELE(p); 19085ea21e69SMikolaj Golub sbuf_delete(&sb); 19095ea21e69SMikolaj Golub return (error != 0 ? error : error2); 1910c5cfcb1cSMikolaj Golub } 1911c5cfcb1cSMikolaj Golub 1912c5cfcb1cSMikolaj Golub /* 1913fe769cddSDavid Schultz * This sysctl allows a process to retrieve the path of the executable for 1914fe769cddSDavid Schultz * itself or another process. 1915fe769cddSDavid Schultz */ 1916fe769cddSDavid Schultz static int 1917fe769cddSDavid Schultz sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS) 1918fe769cddSDavid Schultz { 1919fe769cddSDavid Schultz pid_t *pidp = (pid_t *)arg1; 1920fe769cddSDavid Schultz unsigned int arglen = arg2; 1921fe769cddSDavid Schultz struct proc *p; 1922fe769cddSDavid Schultz struct vnode *vp; 1923fe769cddSDavid Schultz char *retbuf, *freebuf; 19245050aa86SKonstantin Belousov int error; 1925fe769cddSDavid Schultz 1926fe769cddSDavid Schultz if (arglen != 1) 1927fe769cddSDavid Schultz return (EINVAL); 1928fe769cddSDavid Schultz if (*pidp == -1) { /* -1 means this process */ 1929fe769cddSDavid Schultz p = req->td->td_proc; 1930fe769cddSDavid Schultz } else { 1931fa3935bcSMikolaj Golub error = pget(*pidp, PGET_CANSEE, &p); 1932fa3935bcSMikolaj Golub if (error != 0) 1933fe769cddSDavid Schultz return (error); 1934fe769cddSDavid Schultz } 1935fe769cddSDavid Schultz 1936fe769cddSDavid Schultz vp = p->p_textvp; 1937965b55e2SRobert Watson if (vp == NULL) { 1938965b55e2SRobert Watson if (*pidp != -1) 1939965b55e2SRobert Watson PROC_UNLOCK(p); 1940965b55e2SRobert Watson return (0); 1941965b55e2SRobert Watson } 1942fe769cddSDavid Schultz vref(vp); 1943fe769cddSDavid Schultz if (*pidp != -1) 1944fe769cddSDavid Schultz PROC_UNLOCK(p); 1945fe769cddSDavid Schultz error = vn_fullpath(req->td, vp, &retbuf, &freebuf); 1946fe769cddSDavid Schultz vrele(vp); 1947fe769cddSDavid Schultz if (error) 1948fe769cddSDavid Schultz return (error); 1949fe769cddSDavid Schultz error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1); 1950fe769cddSDavid Schultz free(freebuf, M_TEMP); 1951fe769cddSDavid Schultz return (error); 1952fe769cddSDavid Schultz } 1953fe769cddSDavid Schultz 1954baf731e6SRobert Drehmel static int 1955baf731e6SRobert Drehmel sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS) 1956baf731e6SRobert Drehmel { 1957baf731e6SRobert Drehmel struct proc *p; 1958baf731e6SRobert Drehmel char *sv_name; 1959baf731e6SRobert Drehmel int *name; 1960baf731e6SRobert Drehmel int namelen; 1961e76bad96SRobert Drehmel int error; 1962baf731e6SRobert Drehmel 1963baf731e6SRobert Drehmel namelen = arg2; 1964baf731e6SRobert Drehmel if (namelen != 1) 1965baf731e6SRobert Drehmel return (EINVAL); 1966baf731e6SRobert Drehmel 1967baf731e6SRobert Drehmel name = (int *)arg1; 1968fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_CANSEE, &p); 1969fa3935bcSMikolaj Golub if (error != 0) 1970e76bad96SRobert Drehmel return (error); 1971baf731e6SRobert Drehmel sv_name = p->p_sysent->sv_name; 1972baf731e6SRobert Drehmel PROC_UNLOCK(p); 1973baf731e6SRobert Drehmel return (sysctl_handle_string(oidp, sv_name, 0, req)); 1974baf731e6SRobert Drehmel } 1975baf731e6SRobert Drehmel 197643151ee6SPeter Wemm #ifdef KINFO_OVMENTRY_SIZE 197743151ee6SPeter Wemm CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE); 197843151ee6SPeter Wemm #endif 197943151ee6SPeter Wemm 198043151ee6SPeter Wemm #ifdef COMPAT_FREEBSD7 1981cc43c38cSRobert Watson static int 198243151ee6SPeter Wemm sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS) 1983cc43c38cSRobert Watson { 1984cc43c38cSRobert Watson vm_map_entry_t entry, tmp_entry; 1985cc43c38cSRobert Watson unsigned int last_timestamp; 1986cc43c38cSRobert Watson char *fullpath, *freepath; 198743151ee6SPeter Wemm struct kinfo_ovmentry *kve; 19887a9c4d24SPeter Wemm struct vattr va; 19897a9c4d24SPeter Wemm struct ucred *cred; 1990cc43c38cSRobert Watson int error, *name; 1991cc43c38cSRobert Watson struct vnode *vp; 1992cc43c38cSRobert Watson struct proc *p; 1993cc43c38cSRobert Watson vm_map_t map; 1994c7462f43SKonstantin Belousov struct vmspace *vm; 1995baf731e6SRobert Drehmel 1996cc43c38cSRobert Watson name = (int *)arg1; 1997fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_WANTREAD, &p); 1998fa3935bcSMikolaj Golub if (error != 0) 1999cc43c38cSRobert Watson return (error); 2000c7462f43SKonstantin Belousov vm = vmspace_acquire_ref(p); 2001c7462f43SKonstantin Belousov if (vm == NULL) { 2002c7462f43SKonstantin Belousov PRELE(p); 2003c7462f43SKonstantin Belousov return (ESRCH); 2004c7462f43SKonstantin Belousov } 2005cc43c38cSRobert Watson kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK); 2006cc43c38cSRobert Watson 2007ca4aa8c3SSergey Kandaurov map = &vm->vm_map; 2008cc43c38cSRobert Watson vm_map_lock_read(map); 2009cc43c38cSRobert Watson for (entry = map->header.next; entry != &map->header; 2010cc43c38cSRobert Watson entry = entry->next) { 2011cc43c38cSRobert Watson vm_object_t obj, tobj, lobj; 2012cc43c38cSRobert Watson vm_offset_t addr; 2013cc43c38cSRobert Watson 2014cc43c38cSRobert Watson if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) 2015cc43c38cSRobert Watson continue; 2016cc43c38cSRobert Watson 2017cc43c38cSRobert Watson bzero(kve, sizeof(*kve)); 2018cc43c38cSRobert Watson kve->kve_structsize = sizeof(*kve); 2019cc43c38cSRobert Watson 2020cc43c38cSRobert Watson kve->kve_private_resident = 0; 2021cc43c38cSRobert Watson obj = entry->object.vm_object; 2022cc43c38cSRobert Watson if (obj != NULL) { 2023bc403f03SAttilio Rao VM_OBJECT_RLOCK(obj); 2024cc43c38cSRobert Watson if (obj->shadow_count == 1) 2025cc43c38cSRobert Watson kve->kve_private_resident = 2026cc43c38cSRobert Watson obj->resident_page_count; 2027cc43c38cSRobert Watson } 2028cc43c38cSRobert Watson kve->kve_resident = 0; 2029cc43c38cSRobert Watson addr = entry->start; 2030cc43c38cSRobert Watson while (addr < entry->end) { 2031cc43c38cSRobert Watson if (pmap_extract(map->pmap, addr)) 2032cc43c38cSRobert Watson kve->kve_resident++; 2033cc43c38cSRobert Watson addr += PAGE_SIZE; 2034cc43c38cSRobert Watson } 2035cc43c38cSRobert Watson 2036cc43c38cSRobert Watson for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) { 2037cc43c38cSRobert Watson if (tobj != obj) 2038bc403f03SAttilio Rao VM_OBJECT_RLOCK(tobj); 2039cc43c38cSRobert Watson if (lobj != obj) 2040bc403f03SAttilio Rao VM_OBJECT_RUNLOCK(lobj); 2041cc43c38cSRobert Watson lobj = tobj; 2042cc43c38cSRobert Watson } 2043cc43c38cSRobert Watson 2044118d0afaSKonstantin Belousov kve->kve_start = (void*)entry->start; 2045118d0afaSKonstantin Belousov kve->kve_end = (void*)entry->end; 2046118d0afaSKonstantin Belousov kve->kve_offset = (off_t)entry->offset; 2047118d0afaSKonstantin Belousov 2048118d0afaSKonstantin Belousov if (entry->protection & VM_PROT_READ) 2049118d0afaSKonstantin Belousov kve->kve_protection |= KVME_PROT_READ; 2050118d0afaSKonstantin Belousov if (entry->protection & VM_PROT_WRITE) 2051118d0afaSKonstantin Belousov kve->kve_protection |= KVME_PROT_WRITE; 2052118d0afaSKonstantin Belousov if (entry->protection & VM_PROT_EXECUTE) 2053118d0afaSKonstantin Belousov kve->kve_protection |= KVME_PROT_EXEC; 2054118d0afaSKonstantin Belousov 2055118d0afaSKonstantin Belousov if (entry->eflags & MAP_ENTRY_COW) 2056118d0afaSKonstantin Belousov kve->kve_flags |= KVME_FLAG_COW; 2057118d0afaSKonstantin Belousov if (entry->eflags & MAP_ENTRY_NEEDS_COPY) 2058118d0afaSKonstantin Belousov kve->kve_flags |= KVME_FLAG_NEEDS_COPY; 2059937912eaSAttilio Rao if (entry->eflags & MAP_ENTRY_NOCOREDUMP) 2060937912eaSAttilio Rao kve->kve_flags |= KVME_FLAG_NOCOREDUMP; 2061118d0afaSKonstantin Belousov 2062118d0afaSKonstantin Belousov last_timestamp = map->timestamp; 2063118d0afaSKonstantin Belousov vm_map_unlock_read(map); 2064118d0afaSKonstantin Belousov 20657a9c4d24SPeter Wemm kve->kve_fileid = 0; 20667a9c4d24SPeter Wemm kve->kve_fsid = 0; 2067cc43c38cSRobert Watson freepath = NULL; 2068cc43c38cSRobert Watson fullpath = ""; 2069cc43c38cSRobert Watson if (lobj) { 2070cc43c38cSRobert Watson vp = NULL; 2071cc43c38cSRobert Watson switch (lobj->type) { 2072cc43c38cSRobert Watson case OBJT_DEFAULT: 2073cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_DEFAULT; 2074cc43c38cSRobert Watson break; 2075cc43c38cSRobert Watson case OBJT_VNODE: 2076cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_VNODE; 2077cc43c38cSRobert Watson vp = lobj->handle; 2078cc43c38cSRobert Watson vref(vp); 2079cc43c38cSRobert Watson break; 2080cc43c38cSRobert Watson case OBJT_SWAP: 2081cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_SWAP; 2082cc43c38cSRobert Watson break; 2083cc43c38cSRobert Watson case OBJT_DEVICE: 2084cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_DEVICE; 2085cc43c38cSRobert Watson break; 2086cc43c38cSRobert Watson case OBJT_PHYS: 2087cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_PHYS; 2088cc43c38cSRobert Watson break; 2089cc43c38cSRobert Watson case OBJT_DEAD: 2090cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_DEAD; 2091cc43c38cSRobert Watson break; 209201381811SJohn Baldwin case OBJT_SG: 209301381811SJohn Baldwin kve->kve_type = KVME_TYPE_SG; 209401381811SJohn Baldwin break; 2095cc43c38cSRobert Watson default: 2096cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_UNKNOWN; 2097cc43c38cSRobert Watson break; 2098cc43c38cSRobert Watson } 2099cc43c38cSRobert Watson if (lobj != obj) 2100bc403f03SAttilio Rao VM_OBJECT_RUNLOCK(lobj); 2101cc43c38cSRobert Watson 2102cc43c38cSRobert Watson kve->kve_ref_count = obj->ref_count; 2103cc43c38cSRobert Watson kve->kve_shadow_count = obj->shadow_count; 2104bc403f03SAttilio Rao VM_OBJECT_RUNLOCK(obj); 2105cc43c38cSRobert Watson if (vp != NULL) { 2106cc43c38cSRobert Watson vn_fullpath(curthread, vp, &fullpath, 2107cc43c38cSRobert Watson &freepath); 21087a9c4d24SPeter Wemm cred = curthread->td_ucred; 21092ff47c5fSJohn Baldwin vn_lock(vp, LK_SHARED | LK_RETRY); 21107a9c4d24SPeter Wemm if (VOP_GETATTR(vp, &va, cred) == 0) { 21117a9c4d24SPeter Wemm kve->kve_fileid = va.va_fileid; 21127a9c4d24SPeter Wemm kve->kve_fsid = va.va_fsid; 21137a9c4d24SPeter Wemm } 2114cc43c38cSRobert Watson vput(vp); 2115cc43c38cSRobert Watson } 2116cc43c38cSRobert Watson } else { 2117cc43c38cSRobert Watson kve->kve_type = KVME_TYPE_NONE; 2118cc43c38cSRobert Watson kve->kve_ref_count = 0; 2119cc43c38cSRobert Watson kve->kve_shadow_count = 0; 2120cc43c38cSRobert Watson } 2121cc43c38cSRobert Watson 2122cc43c38cSRobert Watson strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path)); 2123cc43c38cSRobert Watson if (freepath != NULL) 2124cc43c38cSRobert Watson free(freepath, M_TEMP); 2125cc43c38cSRobert Watson 2126cc43c38cSRobert Watson error = SYSCTL_OUT(req, kve, sizeof(*kve)); 2127cc43c38cSRobert Watson vm_map_lock_read(map); 2128cc43c38cSRobert Watson if (error) 2129cc43c38cSRobert Watson break; 213022a448c4SKonstantin Belousov if (last_timestamp != map->timestamp) { 2131cc43c38cSRobert Watson vm_map_lookup_entry(map, addr - 1, &tmp_entry); 2132cc43c38cSRobert Watson entry = tmp_entry; 2133cc43c38cSRobert Watson } 2134cc43c38cSRobert Watson } 2135cc43c38cSRobert Watson vm_map_unlock_read(map); 2136c7462f43SKonstantin Belousov vmspace_free(vm); 2137cc43c38cSRobert Watson PRELE(p); 2138cc43c38cSRobert Watson free(kve, M_TEMP); 2139cc43c38cSRobert Watson return (error); 2140cc43c38cSRobert Watson } 214143151ee6SPeter Wemm #endif /* COMPAT_FREEBSD7 */ 214243151ee6SPeter Wemm 214343151ee6SPeter Wemm #ifdef KINFO_VMENTRY_SIZE 214443151ee6SPeter Wemm CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE); 214543151ee6SPeter Wemm #endif 214643151ee6SPeter Wemm 2147a62eb139SKonstantin Belousov static void 2148a62eb139SKonstantin Belousov kern_proc_vmmap_resident(vm_map_t map, vm_map_entry_t entry, 2149a62eb139SKonstantin Belousov struct kinfo_vmentry *kve) 2150a62eb139SKonstantin Belousov { 2151a62eb139SKonstantin Belousov vm_object_t obj, tobj; 2152a62eb139SKonstantin Belousov vm_page_t m, m_adv; 2153a62eb139SKonstantin Belousov vm_offset_t addr; 2154a62eb139SKonstantin Belousov vm_paddr_t locked_pa; 2155a62eb139SKonstantin Belousov vm_pindex_t pi, pi_adv, pindex; 2156a62eb139SKonstantin Belousov 2157a62eb139SKonstantin Belousov locked_pa = 0; 2158a62eb139SKonstantin Belousov obj = entry->object.vm_object; 2159a62eb139SKonstantin Belousov addr = entry->start; 2160a62eb139SKonstantin Belousov m_adv = NULL; 2161d3a3b8b0SKonstantin Belousov pi = OFF_TO_IDX(entry->offset); 2162a62eb139SKonstantin Belousov for (; addr < entry->end; addr += IDX_TO_OFF(pi_adv), pi += pi_adv) { 2163a62eb139SKonstantin Belousov if (m_adv != NULL) { 2164a62eb139SKonstantin Belousov m = m_adv; 2165a62eb139SKonstantin Belousov } else { 2166a62eb139SKonstantin Belousov pi_adv = OFF_TO_IDX(entry->end - addr); 2167a62eb139SKonstantin Belousov pindex = pi; 2168a62eb139SKonstantin Belousov for (tobj = obj;; tobj = tobj->backing_object) { 2169a62eb139SKonstantin Belousov m = vm_page_find_least(tobj, pindex); 2170a62eb139SKonstantin Belousov if (m != NULL) { 2171a62eb139SKonstantin Belousov if (m->pindex == pindex) 2172a62eb139SKonstantin Belousov break; 2173a62eb139SKonstantin Belousov if (pi_adv > m->pindex - pindex) { 2174a62eb139SKonstantin Belousov pi_adv = m->pindex - pindex; 2175a62eb139SKonstantin Belousov m_adv = m; 2176a62eb139SKonstantin Belousov } 2177a62eb139SKonstantin Belousov } 2178a62eb139SKonstantin Belousov if (tobj->backing_object == NULL) 2179a62eb139SKonstantin Belousov goto next; 2180a62eb139SKonstantin Belousov pindex += OFF_TO_IDX(tobj-> 2181a62eb139SKonstantin Belousov backing_object_offset); 2182a62eb139SKonstantin Belousov } 2183a62eb139SKonstantin Belousov } 2184a62eb139SKonstantin Belousov m_adv = NULL; 2185a62eb139SKonstantin Belousov if (m->psind != 0 && addr + pagesizes[1] <= entry->end && 2186a62eb139SKonstantin Belousov (addr & (pagesizes[1] - 1)) == 0 && 2187a62eb139SKonstantin Belousov (pmap_mincore(map->pmap, addr, &locked_pa) & 2188a62eb139SKonstantin Belousov MINCORE_SUPER) != 0) { 2189a62eb139SKonstantin Belousov kve->kve_flags |= KVME_FLAG_SUPER; 2190a62eb139SKonstantin Belousov pi_adv = OFF_TO_IDX(pagesizes[1]); 2191a62eb139SKonstantin Belousov } else { 2192a62eb139SKonstantin Belousov /* 2193a62eb139SKonstantin Belousov * We do not test the found page on validity. 2194a62eb139SKonstantin Belousov * Either the page is busy and being paged in, 2195a62eb139SKonstantin Belousov * or it was invalidated. The first case 2196a62eb139SKonstantin Belousov * should be counted as resident, the second 2197a62eb139SKonstantin Belousov * is not so clear; we do account both. 2198a62eb139SKonstantin Belousov */ 2199a62eb139SKonstantin Belousov pi_adv = 1; 2200a62eb139SKonstantin Belousov } 2201a62eb139SKonstantin Belousov kve->kve_resident += pi_adv; 2202a62eb139SKonstantin Belousov next:; 2203a62eb139SKonstantin Belousov } 2204a62eb139SKonstantin Belousov PA_UNLOCK_COND(locked_pa); 2205a62eb139SKonstantin Belousov } 2206a62eb139SKonstantin Belousov 2207fe52cf54SMikolaj Golub /* 2208fe52cf54SMikolaj Golub * Must be called with the process locked and will return unlocked. 2209fe52cf54SMikolaj Golub */ 2210fe52cf54SMikolaj Golub int 2211fe52cf54SMikolaj Golub kern_proc_vmmap_out(struct proc *p, struct sbuf *sb) 221243151ee6SPeter Wemm { 221343151ee6SPeter Wemm vm_map_entry_t entry, tmp_entry; 2214a91831a2SKonstantin Belousov struct vattr va; 2215a91831a2SKonstantin Belousov vm_map_t map; 2216a91831a2SKonstantin Belousov vm_object_t obj, tobj, lobj; 221743151ee6SPeter Wemm char *fullpath, *freepath; 221843151ee6SPeter Wemm struct kinfo_vmentry *kve; 221943151ee6SPeter Wemm struct ucred *cred; 222043151ee6SPeter Wemm struct vnode *vp; 2221c7462f43SKonstantin Belousov struct vmspace *vm; 2222a91831a2SKonstantin Belousov vm_offset_t addr; 2223a91831a2SKonstantin Belousov unsigned int last_timestamp; 2224a91831a2SKonstantin Belousov int error; 222543151ee6SPeter Wemm 2226fe52cf54SMikolaj Golub PROC_LOCK_ASSERT(p, MA_OWNED); 2227fe52cf54SMikolaj Golub 2228fe52cf54SMikolaj Golub _PHOLD(p); 2229fe52cf54SMikolaj Golub PROC_UNLOCK(p); 2230c7462f43SKonstantin Belousov vm = vmspace_acquire_ref(p); 2231c7462f43SKonstantin Belousov if (vm == NULL) { 2232c7462f43SKonstantin Belousov PRELE(p); 2233c7462f43SKonstantin Belousov return (ESRCH); 2234c7462f43SKonstantin Belousov } 223543151ee6SPeter Wemm kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK); 223643151ee6SPeter Wemm 2237fe52cf54SMikolaj Golub error = 0; 2238ca4aa8c3SSergey Kandaurov map = &vm->vm_map; 223943151ee6SPeter Wemm vm_map_lock_read(map); 224043151ee6SPeter Wemm for (entry = map->header.next; entry != &map->header; 224143151ee6SPeter Wemm entry = entry->next) { 224243151ee6SPeter Wemm if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) 224343151ee6SPeter Wemm continue; 224443151ee6SPeter Wemm 2245479fcb4eSKonstantin Belousov addr = entry->end; 224643151ee6SPeter Wemm bzero(kve, sizeof(*kve)); 224743151ee6SPeter Wemm obj = entry->object.vm_object; 224843151ee6SPeter Wemm if (obj != NULL) { 2249a91831a2SKonstantin Belousov for (tobj = obj; tobj != NULL; 2250a91831a2SKonstantin Belousov tobj = tobj->backing_object) { 2251a91831a2SKonstantin Belousov VM_OBJECT_RLOCK(tobj); 2252a91831a2SKonstantin Belousov lobj = tobj; 2253a91831a2SKonstantin Belousov } 22543760e341SKonstantin Belousov if (obj->backing_object == NULL) 225543151ee6SPeter Wemm kve->kve_private_resident = 225643151ee6SPeter Wemm obj->resident_page_count; 2257a62eb139SKonstantin Belousov if (!vmmap_skip_res_cnt) 2258a62eb139SKonstantin Belousov kern_proc_vmmap_resident(map, entry, kve); 2259a91831a2SKonstantin Belousov for (tobj = obj; tobj != NULL; 2260a91831a2SKonstantin Belousov tobj = tobj->backing_object) { 2261a91831a2SKonstantin Belousov if (tobj != obj && tobj != lobj) 2262a91831a2SKonstantin Belousov VM_OBJECT_RUNLOCK(tobj); 2263a91831a2SKonstantin Belousov } 2264a91831a2SKonstantin Belousov } else { 2265a91831a2SKonstantin Belousov lobj = NULL; 226643151ee6SPeter Wemm } 226743151ee6SPeter Wemm 2268118d0afaSKonstantin Belousov kve->kve_start = entry->start; 2269118d0afaSKonstantin Belousov kve->kve_end = entry->end; 2270118d0afaSKonstantin Belousov kve->kve_offset = entry->offset; 2271118d0afaSKonstantin Belousov 2272118d0afaSKonstantin Belousov if (entry->protection & VM_PROT_READ) 2273118d0afaSKonstantin Belousov kve->kve_protection |= KVME_PROT_READ; 2274118d0afaSKonstantin Belousov if (entry->protection & VM_PROT_WRITE) 2275118d0afaSKonstantin Belousov kve->kve_protection |= KVME_PROT_WRITE; 2276118d0afaSKonstantin Belousov if (entry->protection & VM_PROT_EXECUTE) 2277118d0afaSKonstantin Belousov kve->kve_protection |= KVME_PROT_EXEC; 2278118d0afaSKonstantin Belousov 2279118d0afaSKonstantin Belousov if (entry->eflags & MAP_ENTRY_COW) 2280118d0afaSKonstantin Belousov kve->kve_flags |= KVME_FLAG_COW; 2281118d0afaSKonstantin Belousov if (entry->eflags & MAP_ENTRY_NEEDS_COPY) 2282118d0afaSKonstantin Belousov kve->kve_flags |= KVME_FLAG_NEEDS_COPY; 2283937912eaSAttilio Rao if (entry->eflags & MAP_ENTRY_NOCOREDUMP) 2284937912eaSAttilio Rao kve->kve_flags |= KVME_FLAG_NOCOREDUMP; 2285599fc82bSGabor Pali if (entry->eflags & MAP_ENTRY_GROWS_UP) 2286599fc82bSGabor Pali kve->kve_flags |= KVME_FLAG_GROWS_UP; 2287599fc82bSGabor Pali if (entry->eflags & MAP_ENTRY_GROWS_DOWN) 2288599fc82bSGabor Pali kve->kve_flags |= KVME_FLAG_GROWS_DOWN; 2289118d0afaSKonstantin Belousov 2290118d0afaSKonstantin Belousov last_timestamp = map->timestamp; 2291118d0afaSKonstantin Belousov vm_map_unlock_read(map); 2292118d0afaSKonstantin Belousov 229343151ee6SPeter Wemm freepath = NULL; 229443151ee6SPeter Wemm fullpath = ""; 2295a91831a2SKonstantin Belousov if (lobj != NULL) { 229643151ee6SPeter Wemm vp = NULL; 229743151ee6SPeter Wemm switch (lobj->type) { 229843151ee6SPeter Wemm case OBJT_DEFAULT: 229943151ee6SPeter Wemm kve->kve_type = KVME_TYPE_DEFAULT; 230043151ee6SPeter Wemm break; 230143151ee6SPeter Wemm case OBJT_VNODE: 230243151ee6SPeter Wemm kve->kve_type = KVME_TYPE_VNODE; 230343151ee6SPeter Wemm vp = lobj->handle; 230443151ee6SPeter Wemm vref(vp); 230543151ee6SPeter Wemm break; 230643151ee6SPeter Wemm case OBJT_SWAP: 230743151ee6SPeter Wemm kve->kve_type = KVME_TYPE_SWAP; 230843151ee6SPeter Wemm break; 230943151ee6SPeter Wemm case OBJT_DEVICE: 231043151ee6SPeter Wemm kve->kve_type = KVME_TYPE_DEVICE; 231143151ee6SPeter Wemm break; 231243151ee6SPeter Wemm case OBJT_PHYS: 231343151ee6SPeter Wemm kve->kve_type = KVME_TYPE_PHYS; 231443151ee6SPeter Wemm break; 231543151ee6SPeter Wemm case OBJT_DEAD: 231643151ee6SPeter Wemm kve->kve_type = KVME_TYPE_DEAD; 231743151ee6SPeter Wemm break; 231801381811SJohn Baldwin case OBJT_SG: 231901381811SJohn Baldwin kve->kve_type = KVME_TYPE_SG; 232001381811SJohn Baldwin break; 23212db08c03SJohn Baldwin case OBJT_MGTDEVICE: 23222db08c03SJohn Baldwin kve->kve_type = KVME_TYPE_MGTDEVICE; 23232db08c03SJohn Baldwin break; 232443151ee6SPeter Wemm default: 232543151ee6SPeter Wemm kve->kve_type = KVME_TYPE_UNKNOWN; 232643151ee6SPeter Wemm break; 232743151ee6SPeter Wemm } 232843151ee6SPeter Wemm if (lobj != obj) 2329bc403f03SAttilio Rao VM_OBJECT_RUNLOCK(lobj); 233043151ee6SPeter Wemm 233143151ee6SPeter Wemm kve->kve_ref_count = obj->ref_count; 233243151ee6SPeter Wemm kve->kve_shadow_count = obj->shadow_count; 2333bc403f03SAttilio Rao VM_OBJECT_RUNLOCK(obj); 233443151ee6SPeter Wemm if (vp != NULL) { 233543151ee6SPeter Wemm vn_fullpath(curthread, vp, &fullpath, 233643151ee6SPeter Wemm &freepath); 23370daf62d9SStanislav Sedov kve->kve_vn_type = vntype_to_kinfo(vp->v_type); 233843151ee6SPeter Wemm cred = curthread->td_ucred; 233943151ee6SPeter Wemm vn_lock(vp, LK_SHARED | LK_RETRY); 234043151ee6SPeter Wemm if (VOP_GETATTR(vp, &va, cred) == 0) { 23410daf62d9SStanislav Sedov kve->kve_vn_fileid = va.va_fileid; 23420daf62d9SStanislav Sedov kve->kve_vn_fsid = va.va_fsid; 23430daf62d9SStanislav Sedov kve->kve_vn_mode = 23440daf62d9SStanislav Sedov MAKEIMODE(va.va_type, va.va_mode); 23450daf62d9SStanislav Sedov kve->kve_vn_size = va.va_size; 23460daf62d9SStanislav Sedov kve->kve_vn_rdev = va.va_rdev; 23470daf62d9SStanislav Sedov kve->kve_status = KF_ATTR_VALID; 234843151ee6SPeter Wemm } 234943151ee6SPeter Wemm vput(vp); 235043151ee6SPeter Wemm } 235143151ee6SPeter Wemm } else { 235243151ee6SPeter Wemm kve->kve_type = KVME_TYPE_NONE; 235343151ee6SPeter Wemm kve->kve_ref_count = 0; 235443151ee6SPeter Wemm kve->kve_shadow_count = 0; 235543151ee6SPeter Wemm } 235643151ee6SPeter Wemm 235743151ee6SPeter Wemm strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path)); 235843151ee6SPeter Wemm if (freepath != NULL) 235943151ee6SPeter Wemm free(freepath, M_TEMP); 236043151ee6SPeter Wemm 236143151ee6SPeter Wemm /* Pack record size down */ 236243151ee6SPeter Wemm kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) + 236343151ee6SPeter Wemm strlen(kve->kve_path) + 1; 236443151ee6SPeter Wemm kve->kve_structsize = roundup(kve->kve_structsize, 236543151ee6SPeter Wemm sizeof(uint64_t)); 2366fe52cf54SMikolaj Golub error = sbuf_bcat(sb, kve, kve->kve_structsize); 236743151ee6SPeter Wemm vm_map_lock_read(map); 236843151ee6SPeter Wemm if (error) 236943151ee6SPeter Wemm break; 237022a448c4SKonstantin Belousov if (last_timestamp != map->timestamp) { 237143151ee6SPeter Wemm vm_map_lookup_entry(map, addr - 1, &tmp_entry); 237243151ee6SPeter Wemm entry = tmp_entry; 237343151ee6SPeter Wemm } 237443151ee6SPeter Wemm } 237543151ee6SPeter Wemm vm_map_unlock_read(map); 2376c7462f43SKonstantin Belousov vmspace_free(vm); 237743151ee6SPeter Wemm PRELE(p); 237843151ee6SPeter Wemm free(kve, M_TEMP); 237943151ee6SPeter Wemm return (error); 238043151ee6SPeter Wemm } 2381cc43c38cSRobert Watson 2382fe52cf54SMikolaj Golub static int 2383fe52cf54SMikolaj Golub sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS) 2384fe52cf54SMikolaj Golub { 2385fe52cf54SMikolaj Golub struct proc *p; 2386fe52cf54SMikolaj Golub struct sbuf sb; 2387fe52cf54SMikolaj Golub int error, error2, *name; 2388fe52cf54SMikolaj Golub 2389fe52cf54SMikolaj Golub name = (int *)arg1; 2390fe52cf54SMikolaj Golub sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req); 2391fe52cf54SMikolaj Golub error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p); 2392fe52cf54SMikolaj Golub if (error != 0) { 2393fe52cf54SMikolaj Golub sbuf_delete(&sb); 2394fe52cf54SMikolaj Golub return (error); 2395fe52cf54SMikolaj Golub } 2396fe52cf54SMikolaj Golub error = kern_proc_vmmap_out(p, &sb); 2397fe52cf54SMikolaj Golub error2 = sbuf_finish(&sb); 2398fe52cf54SMikolaj Golub sbuf_delete(&sb); 2399fe52cf54SMikolaj Golub return (error != 0 ? error : error2); 2400fe52cf54SMikolaj Golub } 2401fe52cf54SMikolaj Golub 24021cc8c45cSRobert Watson #if defined(STACK) || defined(DDB) 24031cc8c45cSRobert Watson static int 24041cc8c45cSRobert Watson sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS) 24051cc8c45cSRobert Watson { 24061cc8c45cSRobert Watson struct kinfo_kstack *kkstp; 24071cc8c45cSRobert Watson int error, i, *name, numthreads; 24081cc8c45cSRobert Watson lwpid_t *lwpidarray; 24091cc8c45cSRobert Watson struct thread *td; 24101cc8c45cSRobert Watson struct stack *st; 24111cc8c45cSRobert Watson struct sbuf sb; 24121cc8c45cSRobert Watson struct proc *p; 24131cc8c45cSRobert Watson 24141cc8c45cSRobert Watson name = (int *)arg1; 2415fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p); 2416fa3935bcSMikolaj Golub if (error != 0) 24171cc8c45cSRobert Watson return (error); 24181cc8c45cSRobert Watson 24191cc8c45cSRobert Watson kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK); 24201cc8c45cSRobert Watson st = stack_create(); 24211cc8c45cSRobert Watson 24221cc8c45cSRobert Watson lwpidarray = NULL; 24231cc8c45cSRobert Watson numthreads = 0; 2424374ae2a3SJeff Roberson PROC_LOCK(p); 24251cc8c45cSRobert Watson repeat: 24261cc8c45cSRobert Watson if (numthreads < p->p_numthreads) { 24271cc8c45cSRobert Watson if (lwpidarray != NULL) { 24281cc8c45cSRobert Watson free(lwpidarray, M_TEMP); 24291cc8c45cSRobert Watson lwpidarray = NULL; 24301cc8c45cSRobert Watson } 24311cc8c45cSRobert Watson numthreads = p->p_numthreads; 2432374ae2a3SJeff Roberson PROC_UNLOCK(p); 24331cc8c45cSRobert Watson lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP, 24341cc8c45cSRobert Watson M_WAITOK | M_ZERO); 2435374ae2a3SJeff Roberson PROC_LOCK(p); 24361cc8c45cSRobert Watson goto repeat; 24371cc8c45cSRobert Watson } 24381cc8c45cSRobert Watson i = 0; 24391cc8c45cSRobert Watson 24401cc8c45cSRobert Watson /* 24411cc8c45cSRobert Watson * XXXRW: During the below loop, execve(2) and countless other sorts 24421cc8c45cSRobert Watson * of changes could have taken place. Should we check to see if the 24431cc8c45cSRobert Watson * vmspace has been replaced, or the like, in order to prevent 24441cc8c45cSRobert Watson * giving a snapshot that spans, say, execve(2), with some threads 24451cc8c45cSRobert Watson * before and some after? Among other things, the credentials could 24461cc8c45cSRobert Watson * have changed, in which case the right to extract debug info might 24471cc8c45cSRobert Watson * no longer be assured. 24481cc8c45cSRobert Watson */ 24491cc8c45cSRobert Watson FOREACH_THREAD_IN_PROC(p, td) { 24501cc8c45cSRobert Watson KASSERT(i < numthreads, 24511cc8c45cSRobert Watson ("sysctl_kern_proc_kstack: numthreads")); 24521cc8c45cSRobert Watson lwpidarray[i] = td->td_tid; 24531cc8c45cSRobert Watson i++; 24541cc8c45cSRobert Watson } 24551cc8c45cSRobert Watson numthreads = i; 24561cc8c45cSRobert Watson for (i = 0; i < numthreads; i++) { 24571cc8c45cSRobert Watson td = thread_find(p, lwpidarray[i]); 24581cc8c45cSRobert Watson if (td == NULL) { 24591cc8c45cSRobert Watson continue; 24601cc8c45cSRobert Watson } 24611cc8c45cSRobert Watson bzero(kkstp, sizeof(*kkstp)); 24621cc8c45cSRobert Watson (void)sbuf_new(&sb, kkstp->kkst_trace, 24631cc8c45cSRobert Watson sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN); 24641cc8c45cSRobert Watson thread_lock(td); 24651cc8c45cSRobert Watson kkstp->kkst_tid = td->td_tid; 24661cc8c45cSRobert Watson if (TD_IS_SWAPPED(td)) 24671cc8c45cSRobert Watson kkstp->kkst_state = KKST_STATE_SWAPPED; 24681cc8c45cSRobert Watson else if (TD_IS_RUNNING(td)) 24691cc8c45cSRobert Watson kkstp->kkst_state = KKST_STATE_RUNNING; 24701cc8c45cSRobert Watson else { 24711cc8c45cSRobert Watson kkstp->kkst_state = KKST_STATE_STACKOK; 24721cc8c45cSRobert Watson stack_save_td(st, td); 24731cc8c45cSRobert Watson } 24741cc8c45cSRobert Watson thread_unlock(td); 24751cc8c45cSRobert Watson PROC_UNLOCK(p); 24761cc8c45cSRobert Watson stack_sbuf_print(&sb, st); 24771cc8c45cSRobert Watson sbuf_finish(&sb); 24781cc8c45cSRobert Watson sbuf_delete(&sb); 24791cc8c45cSRobert Watson error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp)); 24801cc8c45cSRobert Watson PROC_LOCK(p); 24811cc8c45cSRobert Watson if (error) 24821cc8c45cSRobert Watson break; 24831cc8c45cSRobert Watson } 24841cc8c45cSRobert Watson _PRELE(p); 24851cc8c45cSRobert Watson PROC_UNLOCK(p); 24861cc8c45cSRobert Watson if (lwpidarray != NULL) 24871cc8c45cSRobert Watson free(lwpidarray, M_TEMP); 24881cc8c45cSRobert Watson stack_destroy(st); 24891cc8c45cSRobert Watson free(kkstp, M_TEMP); 24901cc8c45cSRobert Watson return (error); 24911cc8c45cSRobert Watson } 24921cc8c45cSRobert Watson #endif 24931cc8c45cSRobert Watson 2494254d03c5SBrooks Davis /* 2495254d03c5SBrooks Davis * This sysctl allows a process to retrieve the full list of groups from 2496254d03c5SBrooks Davis * itself or another process. 2497254d03c5SBrooks Davis */ 2498254d03c5SBrooks Davis static int 2499254d03c5SBrooks Davis sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS) 2500254d03c5SBrooks Davis { 2501254d03c5SBrooks Davis pid_t *pidp = (pid_t *)arg1; 2502254d03c5SBrooks Davis unsigned int arglen = arg2; 2503254d03c5SBrooks Davis struct proc *p; 2504254d03c5SBrooks Davis struct ucred *cred; 2505254d03c5SBrooks Davis int error; 2506254d03c5SBrooks Davis 2507254d03c5SBrooks Davis if (arglen != 1) 2508254d03c5SBrooks Davis return (EINVAL); 2509254d03c5SBrooks Davis if (*pidp == -1) { /* -1 means this process */ 2510254d03c5SBrooks Davis p = req->td->td_proc; 2511*2570cdd6SMateusz Guzik PROC_LOCK(p); 2512254d03c5SBrooks Davis } else { 2513fa3935bcSMikolaj Golub error = pget(*pidp, PGET_CANSEE, &p); 2514fa3935bcSMikolaj Golub if (error != 0) 2515254d03c5SBrooks Davis return (error); 2516254d03c5SBrooks Davis } 2517254d03c5SBrooks Davis 2518254d03c5SBrooks Davis cred = crhold(p->p_ucred); 2519254d03c5SBrooks Davis PROC_UNLOCK(p); 2520254d03c5SBrooks Davis 2521254d03c5SBrooks Davis error = SYSCTL_OUT(req, cred->cr_groups, 2522254d03c5SBrooks Davis cred->cr_ngroups * sizeof(gid_t)); 2523254d03c5SBrooks Davis crfree(cred); 2524254d03c5SBrooks Davis return (error); 2525254d03c5SBrooks Davis } 2526254d03c5SBrooks Davis 25279e7d0583SMikolaj Golub /* 25288854fe39SMikolaj Golub * This sysctl allows a process to retrieve or/and set the resource limit for 25299e7d0583SMikolaj Golub * another process. 25309e7d0583SMikolaj Golub */ 25319e7d0583SMikolaj Golub static int 25329e7d0583SMikolaj Golub sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS) 25339e7d0583SMikolaj Golub { 25349e7d0583SMikolaj Golub int *name = (int *)arg1; 25359e7d0583SMikolaj Golub u_int namelen = arg2; 25368854fe39SMikolaj Golub struct rlimit rlim; 25379e7d0583SMikolaj Golub struct proc *p; 25388854fe39SMikolaj Golub u_int which; 25398854fe39SMikolaj Golub int flags, error; 25409e7d0583SMikolaj Golub 25418854fe39SMikolaj Golub if (namelen != 2) 25429e7d0583SMikolaj Golub return (EINVAL); 25439e7d0583SMikolaj Golub 25448854fe39SMikolaj Golub which = (u_int)name[1]; 25458854fe39SMikolaj Golub if (which >= RLIM_NLIMITS) 25468854fe39SMikolaj Golub return (EINVAL); 25478854fe39SMikolaj Golub 25488854fe39SMikolaj Golub if (req->newptr != NULL && req->newlen != sizeof(rlim)) 25498854fe39SMikolaj Golub return (EINVAL); 25508854fe39SMikolaj Golub 25518854fe39SMikolaj Golub flags = PGET_HOLD | PGET_NOTWEXIT; 25528854fe39SMikolaj Golub if (req->newptr != NULL) 25538854fe39SMikolaj Golub flags |= PGET_CANDEBUG; 25548854fe39SMikolaj Golub else 25558854fe39SMikolaj Golub flags |= PGET_CANSEE; 25568854fe39SMikolaj Golub error = pget((pid_t)name[0], flags, &p); 2557fa3935bcSMikolaj Golub if (error != 0) 25589e7d0583SMikolaj Golub return (error); 25598854fe39SMikolaj Golub 25609e7d0583SMikolaj Golub /* 25618854fe39SMikolaj Golub * Retrieve limit. 25629e7d0583SMikolaj Golub */ 25638854fe39SMikolaj Golub if (req->oldptr != NULL) { 25648854fe39SMikolaj Golub PROC_LOCK(p); 25658854fe39SMikolaj Golub lim_rlimit(p, which, &rlim); 25669e7d0583SMikolaj Golub PROC_UNLOCK(p); 25678854fe39SMikolaj Golub } 25688854fe39SMikolaj Golub error = SYSCTL_OUT(req, &rlim, sizeof(rlim)); 25698854fe39SMikolaj Golub if (error != 0) 25708854fe39SMikolaj Golub goto errout; 25718854fe39SMikolaj Golub 25728854fe39SMikolaj Golub /* 25738854fe39SMikolaj Golub * Set limit. 25748854fe39SMikolaj Golub */ 25758854fe39SMikolaj Golub if (req->newptr != NULL) { 25768854fe39SMikolaj Golub error = SYSCTL_IN(req, &rlim, sizeof(rlim)); 25778854fe39SMikolaj Golub if (error == 0) 25788854fe39SMikolaj Golub error = kern_proc_setrlimit(curthread, p, which, &rlim); 25799e7d0583SMikolaj Golub } 25809e7d0583SMikolaj Golub 25818854fe39SMikolaj Golub errout: 25828854fe39SMikolaj Golub PRELE(p); 25839e7d0583SMikolaj Golub return (error); 25849e7d0583SMikolaj Golub } 25859e7d0583SMikolaj Golub 25869732458fSMikolaj Golub /* 25879732458fSMikolaj Golub * This sysctl allows a process to retrieve ps_strings structure location of 25889732458fSMikolaj Golub * another process. 25899732458fSMikolaj Golub */ 25909732458fSMikolaj Golub static int 25919732458fSMikolaj Golub sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS) 25929732458fSMikolaj Golub { 25939732458fSMikolaj Golub int *name = (int *)arg1; 25949732458fSMikolaj Golub u_int namelen = arg2; 25959732458fSMikolaj Golub struct proc *p; 25969732458fSMikolaj Golub vm_offset_t ps_strings; 25979732458fSMikolaj Golub int error; 25989732458fSMikolaj Golub #ifdef COMPAT_FREEBSD32 25999732458fSMikolaj Golub uint32_t ps_strings32; 26009732458fSMikolaj Golub #endif 26019732458fSMikolaj Golub 26029732458fSMikolaj Golub if (namelen != 1) 26039732458fSMikolaj Golub return (EINVAL); 26049732458fSMikolaj Golub 2605fa3935bcSMikolaj Golub error = pget((pid_t)name[0], PGET_CANDEBUG, &p); 2606fa3935bcSMikolaj Golub if (error != 0) 26079732458fSMikolaj Golub return (error); 26089732458fSMikolaj Golub #ifdef COMPAT_FREEBSD32 26099732458fSMikolaj Golub if ((req->flags & SCTL_MASK32) != 0) { 26109732458fSMikolaj Golub /* 26119732458fSMikolaj Golub * We return 0 if the 32 bit emulation request is for a 64 bit 26129732458fSMikolaj Golub * process. 26139732458fSMikolaj Golub */ 26149732458fSMikolaj Golub ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ? 26159732458fSMikolaj Golub PTROUT(p->p_sysent->sv_psstrings) : 0; 26169732458fSMikolaj Golub PROC_UNLOCK(p); 26179732458fSMikolaj Golub error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32)); 26189732458fSMikolaj Golub return (error); 26199732458fSMikolaj Golub } 26209732458fSMikolaj Golub #endif 26219732458fSMikolaj Golub ps_strings = p->p_sysent->sv_psstrings; 26229732458fSMikolaj Golub PROC_UNLOCK(p); 26239732458fSMikolaj Golub error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings)); 26249732458fSMikolaj Golub return (error); 26259732458fSMikolaj Golub } 26269732458fSMikolaj Golub 26276ce13747SMikolaj Golub /* 2628e0fcf639SMikolaj Golub * This sysctl allows a process to retrieve umask of another process. 26296ce13747SMikolaj Golub */ 26306ce13747SMikolaj Golub static int 26316ce13747SMikolaj Golub sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS) 26326ce13747SMikolaj Golub { 26336ce13747SMikolaj Golub int *name = (int *)arg1; 26346ce13747SMikolaj Golub u_int namelen = arg2; 26356ce13747SMikolaj Golub struct proc *p; 26366ce13747SMikolaj Golub int error; 26376ce13747SMikolaj Golub u_short fd_cmask; 26386ce13747SMikolaj Golub 26396ce13747SMikolaj Golub if (namelen != 1) 26406ce13747SMikolaj Golub return (EINVAL); 26416ce13747SMikolaj Golub 26426ce13747SMikolaj Golub error = pget((pid_t)name[0], PGET_WANTREAD, &p); 26436ce13747SMikolaj Golub if (error != 0) 26446ce13747SMikolaj Golub return (error); 26456ce13747SMikolaj Golub 26466ce13747SMikolaj Golub FILEDESC_SLOCK(p->p_fd); 26476ce13747SMikolaj Golub fd_cmask = p->p_fd->fd_cmask; 26486ce13747SMikolaj Golub FILEDESC_SUNLOCK(p->p_fd); 26496ce13747SMikolaj Golub PRELE(p); 2650e0fcf639SMikolaj Golub error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask)); 26516ce13747SMikolaj Golub return (error); 26526ce13747SMikolaj Golub } 26536ce13747SMikolaj Golub 2654903712c9SMikolaj Golub /* 2655903712c9SMikolaj Golub * This sysctl allows a process to set and retrieve binary osreldate of 2656903712c9SMikolaj Golub * another process. 2657903712c9SMikolaj Golub */ 2658903712c9SMikolaj Golub static int 2659903712c9SMikolaj Golub sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS) 2660903712c9SMikolaj Golub { 2661903712c9SMikolaj Golub int *name = (int *)arg1; 2662903712c9SMikolaj Golub u_int namelen = arg2; 2663903712c9SMikolaj Golub struct proc *p; 2664903712c9SMikolaj Golub int flags, error, osrel; 2665903712c9SMikolaj Golub 2666903712c9SMikolaj Golub if (namelen != 1) 2667903712c9SMikolaj Golub return (EINVAL); 2668903712c9SMikolaj Golub 2669903712c9SMikolaj Golub if (req->newptr != NULL && req->newlen != sizeof(osrel)) 2670903712c9SMikolaj Golub return (EINVAL); 2671903712c9SMikolaj Golub 2672903712c9SMikolaj Golub flags = PGET_HOLD | PGET_NOTWEXIT; 2673903712c9SMikolaj Golub if (req->newptr != NULL) 2674903712c9SMikolaj Golub flags |= PGET_CANDEBUG; 2675903712c9SMikolaj Golub else 2676903712c9SMikolaj Golub flags |= PGET_CANSEE; 2677903712c9SMikolaj Golub error = pget((pid_t)name[0], flags, &p); 2678903712c9SMikolaj Golub if (error != 0) 2679903712c9SMikolaj Golub return (error); 2680903712c9SMikolaj Golub 2681903712c9SMikolaj Golub error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel)); 2682903712c9SMikolaj Golub if (error != 0) 2683903712c9SMikolaj Golub goto errout; 2684903712c9SMikolaj Golub 2685903712c9SMikolaj Golub if (req->newptr != NULL) { 2686903712c9SMikolaj Golub error = SYSCTL_IN(req, &osrel, sizeof(osrel)); 2687903712c9SMikolaj Golub if (error != 0) 2688903712c9SMikolaj Golub goto errout; 2689903712c9SMikolaj Golub if (osrel < 0) { 2690903712c9SMikolaj Golub error = EINVAL; 2691903712c9SMikolaj Golub goto errout; 2692903712c9SMikolaj Golub } 2693903712c9SMikolaj Golub p->p_osrel = osrel; 2694903712c9SMikolaj Golub } 2695903712c9SMikolaj Golub errout: 2696903712c9SMikolaj Golub PRELE(p); 2697903712c9SMikolaj Golub return (error); 2698903712c9SMikolaj Golub } 2699903712c9SMikolaj Golub 270080c3af4eSKonstantin Belousov static int 270180c3af4eSKonstantin Belousov sysctl_kern_proc_sigtramp(SYSCTL_HANDLER_ARGS) 270280c3af4eSKonstantin Belousov { 270380c3af4eSKonstantin Belousov int *name = (int *)arg1; 270480c3af4eSKonstantin Belousov u_int namelen = arg2; 270580c3af4eSKonstantin Belousov struct proc *p; 270680c3af4eSKonstantin Belousov struct kinfo_sigtramp kst; 270780c3af4eSKonstantin Belousov const struct sysentvec *sv; 270880c3af4eSKonstantin Belousov int error; 270980c3af4eSKonstantin Belousov #ifdef COMPAT_FREEBSD32 271080c3af4eSKonstantin Belousov struct kinfo_sigtramp32 kst32; 271180c3af4eSKonstantin Belousov #endif 271280c3af4eSKonstantin Belousov 271380c3af4eSKonstantin Belousov if (namelen != 1) 271480c3af4eSKonstantin Belousov return (EINVAL); 271580c3af4eSKonstantin Belousov 271680c3af4eSKonstantin Belousov error = pget((pid_t)name[0], PGET_CANDEBUG, &p); 271780c3af4eSKonstantin Belousov if (error != 0) 271880c3af4eSKonstantin Belousov return (error); 271980c3af4eSKonstantin Belousov sv = p->p_sysent; 272080c3af4eSKonstantin Belousov #ifdef COMPAT_FREEBSD32 272180c3af4eSKonstantin Belousov if ((req->flags & SCTL_MASK32) != 0) { 272280c3af4eSKonstantin Belousov bzero(&kst32, sizeof(kst32)); 272380c3af4eSKonstantin Belousov if (SV_PROC_FLAG(p, SV_ILP32)) { 272480c3af4eSKonstantin Belousov if (sv->sv_sigcode_base != 0) { 272580c3af4eSKonstantin Belousov kst32.ksigtramp_start = sv->sv_sigcode_base; 272680c3af4eSKonstantin Belousov kst32.ksigtramp_end = sv->sv_sigcode_base + 272780c3af4eSKonstantin Belousov *sv->sv_szsigcode; 272880c3af4eSKonstantin Belousov } else { 272980c3af4eSKonstantin Belousov kst32.ksigtramp_start = sv->sv_psstrings - 273080c3af4eSKonstantin Belousov *sv->sv_szsigcode; 273180c3af4eSKonstantin Belousov kst32.ksigtramp_end = sv->sv_psstrings; 273280c3af4eSKonstantin Belousov } 273380c3af4eSKonstantin Belousov } 273480c3af4eSKonstantin Belousov PROC_UNLOCK(p); 273580c3af4eSKonstantin Belousov error = SYSCTL_OUT(req, &kst32, sizeof(kst32)); 273680c3af4eSKonstantin Belousov return (error); 273780c3af4eSKonstantin Belousov } 273880c3af4eSKonstantin Belousov #endif 273980c3af4eSKonstantin Belousov bzero(&kst, sizeof(kst)); 274080c3af4eSKonstantin Belousov if (sv->sv_sigcode_base != 0) { 274180c3af4eSKonstantin Belousov kst.ksigtramp_start = (char *)sv->sv_sigcode_base; 274280c3af4eSKonstantin Belousov kst.ksigtramp_end = (char *)sv->sv_sigcode_base + 274380c3af4eSKonstantin Belousov *sv->sv_szsigcode; 274480c3af4eSKonstantin Belousov } else { 274580c3af4eSKonstantin Belousov kst.ksigtramp_start = (char *)sv->sv_psstrings - 274680c3af4eSKonstantin Belousov *sv->sv_szsigcode; 274780c3af4eSKonstantin Belousov kst.ksigtramp_end = (char *)sv->sv_psstrings; 274880c3af4eSKonstantin Belousov } 274980c3af4eSKonstantin Belousov PROC_UNLOCK(p); 275080c3af4eSKonstantin Belousov error = SYSCTL_OUT(req, &kst, sizeof(kst)); 275180c3af4eSKonstantin Belousov return (error); 275280c3af4eSKonstantin Belousov } 275380c3af4eSKonstantin Belousov 2754cc43c38cSRobert Watson SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table"); 27553ce93e4eSPoul-Henning Kamp 275624f87fdbSJohn Baldwin SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT| 275724f87fdbSJohn Baldwin CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc", 275824f87fdbSJohn Baldwin "Return entire process table"); 27593ce93e4eSPoul-Henning Kamp 276024f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE, 2761078842c5SGarance A Drosehn sysctl_kern_proc, "Process table"); 2762078842c5SGarance A Drosehn 276324f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE, 27643ce93e4eSPoul-Henning Kamp sysctl_kern_proc, "Process table"); 27653ce93e4eSPoul-Henning Kamp 276624f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE, 2767b8fdc89dSGarance A Drosehn sysctl_kern_proc, "Process table"); 2768b8fdc89dSGarance A Drosehn 276924f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD | 277024f87fdbSJohn Baldwin CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 277124f87fdbSJohn Baldwin 277224f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE, 2773b8fdc89dSGarance A Drosehn sysctl_kern_proc, "Process table"); 2774b8fdc89dSGarance A Drosehn 277524f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE, 27763ce93e4eSPoul-Henning Kamp sysctl_kern_proc, "Process table"); 27773ce93e4eSPoul-Henning Kamp 277824f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE, 27793ce93e4eSPoul-Henning Kamp sysctl_kern_proc, "Process table"); 27803ce93e4eSPoul-Henning Kamp 278124f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE, 27823ce93e4eSPoul-Henning Kamp sysctl_kern_proc, "Process table"); 27833ce93e4eSPoul-Henning Kamp 278424f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE, 278530c6f34eSScott Long sysctl_kern_proc, "Return process table, no threads"); 278630c6f34eSScott Long 27870c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args, 278824f87fdbSJohn Baldwin CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, 27899b6d9dbaSPoul-Henning Kamp sysctl_kern_proc_args, "Process argument list"); 2790baf731e6SRobert Drehmel 279145efc9b4SMikolaj Golub static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE, 2792c5cfcb1cSMikolaj Golub sysctl_kern_proc_env, "Process environment"); 2793c5cfcb1cSMikolaj Golub 279445efc9b4SMikolaj Golub static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD | 279545efc9b4SMikolaj Golub CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector"); 2796c5cfcb1cSMikolaj Golub 279724f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD | 279824f87fdbSJohn Baldwin CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path"); 2799fe769cddSDavid Schultz 280024f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD | 280124f87fdbSJohn Baldwin CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name, 280224f87fdbSJohn Baldwin "Process syscall vector name (ABI type)"); 28032648efa6SDaniel Eischen 28040c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td, 280524f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 2806078842c5SGarance A Drosehn 28070c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td, 280824f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 28092648efa6SDaniel Eischen 28100c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td, 281124f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 2812b8fdc89dSGarance A Drosehn 28130c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD), 281424f87fdbSJohn Baldwin sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 28150c898376SPoul-Henning Kamp 28160c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td, 281724f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 2818b8fdc89dSGarance A Drosehn 28190c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td, 282024f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 28212648efa6SDaniel Eischen 28220c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td, 282324f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 28242648efa6SDaniel Eischen 28250c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td, 282624f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table"); 28272648efa6SDaniel Eischen 28280c898376SPoul-Henning Kamp static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td, 282924f87fdbSJohn Baldwin CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, 283024f87fdbSJohn Baldwin "Return process table, no threads"); 2831cc43c38cSRobert Watson 283243151ee6SPeter Wemm #ifdef COMPAT_FREEBSD7 283324f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD | 283424f87fdbSJohn Baldwin CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries"); 283543151ee6SPeter Wemm #endif 283643151ee6SPeter Wemm 283724f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD | 283824f87fdbSJohn Baldwin CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries"); 28391cc8c45cSRobert Watson 28401cc8c45cSRobert Watson #if defined(STACK) || defined(DDB) 284124f87fdbSJohn Baldwin static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD | 284224f87fdbSJohn Baldwin CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks"); 28431cc8c45cSRobert Watson #endif 2844254d03c5SBrooks Davis 2845254d03c5SBrooks Davis static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD | 2846254d03c5SBrooks Davis CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups"); 28479e7d0583SMikolaj Golub 28488854fe39SMikolaj Golub static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW | 28498854fe39SMikolaj Golub CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit, 28508854fe39SMikolaj Golub "Process resource limits"); 28519732458fSMikolaj Golub 285245efc9b4SMikolaj Golub static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD | 285345efc9b4SMikolaj Golub CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings, 285445efc9b4SMikolaj Golub "Process ps_strings location"); 28556ce13747SMikolaj Golub 2856e0fcf639SMikolaj Golub static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD | 2857e0fcf639SMikolaj Golub CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask"); 2858903712c9SMikolaj Golub 2859903712c9SMikolaj Golub static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW | 2860903712c9SMikolaj Golub CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel, 2861903712c9SMikolaj Golub "Process binary osreldate"); 286280c3af4eSKonstantin Belousov 286380c3af4eSKonstantin Belousov static SYSCTL_NODE(_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD | 286480c3af4eSKonstantin Belousov CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp, 286580c3af4eSKonstantin Belousov "Process signal trampoline location"); 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