X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/378393581903b274cb7a4d18e0d978071a6b592d..a1c7dba18ef36983396c282fe85292db066e39db:/bsd/sys/proc_internal.h diff --git a/bsd/sys/proc_internal.h b/bsd/sys/proc_internal.h index 4147cbe1f..96c7c3392 100644 --- a/bsd/sys/proc_internal.h +++ b/bsd/sys/proc_internal.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2010 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ /*- @@ -59,45 +65,134 @@ * * @(#)proc_internal.h 8.15 (Berkeley) 5/19/95 */ +/* + * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce + * support for mandatory and extensible security protections. This notice + * is included in support of clause 2.2 (b) of the Apple Public License, + * Version 2.0. + */ #ifndef _SYS_PROC_INTERNAL_H_ #define _SYS_PROC_INTERNAL_H_ +#include #include __BEGIN_DECLS #include +#if PSYNCH +#include +#endif /* PSYNCH */ __END_DECLS +#if DEBUG +#define __PROC_INTERNAL_DEBUG 1 +#endif + +/* + * The short form for various locks that protect fields in the data structures. + * PL = Process Lock + * PGL = Process Group Lock + * PFDL = Process File Desc Lock + * PSL = Process Spin Lock + * PPL = Parent Process Lock (planed for later usage) + * LL = List Lock + * SL = Session Lock +*/ +struct label; + +/* + * Added by SPARTA, Inc. + */ +/* + * Login context. + */ +struct lctx { + LIST_ENTRY(lctx) lc_list; /* List of all login contexts. */ + LIST_HEAD(, proc) lc_members; /* Pointer to lc members. */ + int lc_mc; /* Member Count. */ + pid_t lc_id; /* Login context ID. */ + lck_mtx_t lc_mtx; /* Mutex to protect members */ + + struct label *lc_label; /* Login context MAC label. */ +}; + /* * One structure allocated per session. */ struct session { - int s_count; /* Ref cnt; pgrps in session. */ - struct proc *s_leader; /* Session leader. */ - struct vnode *s_ttyvp; /* Vnode of controlling terminal. */ - struct tty *s_ttyp; /* Controlling terminal. */ - pid_t s_sid; /* Session ID */ - char s_login[MAXLOGNAME]; /* Setlogin() name. */ + int s_count; /* Ref cnt; pgrps in session. (LL) */ + struct proc * s_leader; /* Session leader.(static) */ + struct vnode * s_ttyvp; /* Vnode of controlling terminal.(SL) */ + int s_ttyvid; /* Vnode id of the controlling terminal (SL) */ + struct tty * s_ttyp; /* Controlling terminal. (SL + ttyvp != NULL) */ + pid_t s_ttypgrpid; /* tty's pgrp id */ + pid_t s_sid; /* Session ID (static) */ + char s_login[MAXLOGNAME]; /* Setlogin() name.(SL) */ + int s_flags; /* Session flags (s_mlock) */ + LIST_ENTRY(session) s_hash; /* Hash chain.(LL) */ + lck_mtx_t s_mlock; /* mutex lock to protect session */ + int s_listflags; }; +#define SESSION_NULL (struct session *)0 + +/* + * accessor for s_ttyp which treats it as invalid if s_ttyvp is not valid; + * note that s_ttyp is not a reference in the session structre, so it can + * become invalid out from under the session if the device is closed, without + * this protection. We can't safely make it into a reference without reflexive + * close notification of tty devices through cdevsw[]. + * + * NB: is not in scope and there is not typedef type enforcement, + * or '0' below would be 'TTY_NULL'. + */ +#define SESSION_TP(sp) (((sp)->s_ttyvp != 0) ? (sp)->s_ttyp : 0) + +/* + * Session flags; used to tunnel information to lower layers and line + * disciplines, etc. + */ +#define S_DEFAULT 0x00000000 /* No flags set */ +#define S_NOCTTY 0x00000001 /* Do not associate controlling tty */ +#define S_CTTYREF 0x00000010 /* vnode ref taken by cttyopen */ + + +#define S_LIST_TERM 1 /* marked for termination */ +#define S_LIST_DEAD 2 /* already dead */ /* * One structure allocated per process group. */ struct pgrp { - LIST_ENTRY(pgrp) pg_hash; /* Hash chain. */ - LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members. */ - struct session *pg_session; /* Pointer to session. */ - pid_t pg_id; /* Pgrp id. */ - int pg_jobc; /* # procs qualifying pgrp for job control */ + LIST_ENTRY(pgrp) pg_hash; /* Hash chain. (LL) */ + LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members. (PGL) */ + struct session * pg_session; /* Pointer to session. (LL ) */ + pid_t pg_id; /* Pgrp id. (static) */ + int pg_jobc; /* # procs qualifying pgrp for job control (PGL) */ + int pg_membercnt; /* Number of processes in the pgrocess group (PGL) */ + int pg_refcount; /* number of current iterators (LL) */ + unsigned int pg_listflags; /* (LL) */ + lck_mtx_t pg_mlock; /* mutex lock to protect pgrp */ }; +#define PGRP_FLAG_TERMINATE 1 +#define PGRP_FLAG_WAITTERMINATE 2 +#define PGRP_FLAG_DEAD 4 +#define PGRP_FLAG_ITERABEGIN 8 +#define PGRP_FLAG_ITERWAIT 0x10 + +#define PGRP_NULL (struct pgrp *)0 struct proc; #define PROC_NULL (struct proc *)0 -#define p_session p_pgrp->pg_session -#define p_pgid p_pgrp->pg_id - +#define PROC_UPDATE_CREDS_ONPROC(p) { \ + p->p_uid = kauth_cred_getuid(p->p_ucred); \ + p->p_gid = kauth_cred_getgid(p->p_ucred); \ + p->p_ruid = kauth_cred_getruid(p->p_ucred); \ + p->p_rgid = kauth_cred_getrgid(p->p_ucred); \ + p->p_svuid = kauth_cred_getsvuid(p->p_ucred); \ + p->p_svgid = kauth_cred_getsvgid(p->p_ucred); \ + } /* * Description of a process. * @@ -110,145 +205,317 @@ struct proc; * is running. */ struct proc { - LIST_ENTRY(proc) p_list; /* List of all processes. */ + LIST_ENTRY(proc) p_list; /* List of all processes. */ + + pid_t p_pid; /* Process identifier. (static)*/ + void * task; /* corresponding task (static)*/ + struct proc * p_pptr; /* Pointer to parent process.(LL) */ + pid_t p_ppid; /* process's parent pid number */ + pid_t p_pgrpid; /* process group id of the process (LL)*/ + uid_t p_uid; + gid_t p_gid; + uid_t p_ruid; + gid_t p_rgid; + uid_t p_svuid; + gid_t p_svgid; + uint64_t p_uniqueid; /* process unique ID - incremented on fork/spawn/vfork, remains same across exec. */ + uint64_t p_puniqueid; /* parent's unique ID - set on fork/spawn/vfork, doesn't change if reparented. */ + + lck_mtx_t p_mlock; /* mutex lock for proc */ + + char p_stat; /* S* process status. (PL)*/ + char p_shutdownstate; + char p_kdebug; /* P_KDEBUG eq (CC)*/ + char p_btrace; /* P_BTRACE eq (CC)*/ + + LIST_ENTRY(proc) p_pglist; /* List of processes in pgrp.(PGL) */ + LIST_ENTRY(proc) p_sibling; /* List of sibling processes. (LL)*/ + LIST_HEAD(, proc) p_children; /* Pointer to list of children. (LL)*/ + TAILQ_HEAD( , uthread) p_uthlist; /* List of uthreads (PL) */ + + LIST_ENTRY(proc) p_hash; /* Hash chain. (LL)*/ + TAILQ_HEAD( ,eventqelt) p_evlist; /* (PL) */ + + lck_mtx_t p_fdmlock; /* proc lock to protect fdesc */ /* substructures: */ - struct ucred *p_ucred; /* Process owner's identity. */ - struct filedesc *p_fd; /* Ptr to open files structure. */ - struct pstats *p_stats; /* Accounting/statistics (PROC ONLY). */ - struct plimit *p_limit; /* Process limits. */ - struct sigacts *p_sigacts; /* Signal actions, state (PROC ONLY). */ - -#define p_rlimit p_limit->pl_rlimit + kauth_cred_t p_ucred; /* Process owner's identity. (PL) */ + struct filedesc *p_fd; /* Ptr to open files structure. (PFDL) */ + struct pstats *p_stats; /* Accounting/statistics (PL). */ + struct plimit *p_limit; /* Process limits.(PL) */ - int p_flag; /* P_* flags. */ - char p_stat; /* S* process status. */ - char p_shutdownstate; - char p_pad1[2]; - - pid_t p_pid; /* Process identifier. */ - LIST_ENTRY(proc) p_pglist; /* List of processes in pgrp. */ - struct proc *p_pptr; /* Pointer to parent process. */ - LIST_ENTRY(proc) p_sibling; /* List of sibling processes. */ - LIST_HEAD(, proc) p_children; /* Pointer to list of children. */ + struct sigacts *p_sigacts; /* Signal actions, state (PL) */ + int p_siglist; /* signals captured back from threads */ + lck_spin_t p_slock; /* spin lock for itimer/profil protection */ -/* The following fields are all zeroed upon creation in fork. */ -#define p_startzero p_oppid +#define p_rlimit p_limit->pl_rlimit - pid_t p_oppid; /* Save parent pid during ptrace. XXX */ - int p_dupfd; /* Sideways return value from fdopen. XXX */ + struct plimit *p_olimit; /* old process limits - not inherited by child (PL) */ + unsigned int p_flag; /* P_* flags. (atomic bit ops) */ + unsigned int p_lflag; /* local flags (PL) */ + unsigned int p_listflag; /* list flags (LL) */ + unsigned int p_ladvflag; /* local adv flags (atomic) */ + int p_refcount; /* number of outstanding users(LL) */ + int p_childrencnt; /* children holding ref on parent (LL) */ + int p_parentref; /* children lookup ref on parent (LL) */ + + pid_t p_oppid; /* Save parent pid during ptrace. XXX */ + u_int p_xstat; /* Exit status for wait; also stop signal. */ + +#ifdef _PROC_HAS_SCHEDINFO_ + /* may need cleanup, not used */ + u_int p_estcpu; /* Time averaged value of p_cpticks.(used by aio and proc_comapre) */ + fixpt_t p_pctcpu; /* %cpu for this process during p_swtime (used by aio)*/ + u_int p_slptime; /* used by proc_compare */ +#endif /* _PROC_HAS_SCHEDINFO_ */ + + struct itimerval p_realtimer; /* Alarm timer. (PSL) */ + struct timeval p_rtime; /* Real time.(PSL) */ + struct itimerval p_vtimer_user; /* Virtual timers.(PSL) */ + struct itimerval p_vtimer_prof; /* (PSL) */ + + struct timeval p_rlim_cpu; /* Remaining rlim cpu value.(PSL) */ + int p_debugger; /* NU 1: can exec set-bit programs if suser */ + boolean_t sigwait; /* indication to suspend (PL) */ + void *sigwait_thread; /* 'thread' holding sigwait(PL) */ + void *exit_thread; /* Which thread is exiting(PL) */ + int p_vforkcnt; /* number of outstanding vforks(PL) */ + void * p_vforkact; /* activation running this vfork proc)(static) */ + int p_fpdrainwait; /* (PFDL) */ + pid_t p_contproc; /* last PID to send us a SIGCONT (PL) */ + + /* Following fields are info from SIGCHLD (PL) */ + pid_t si_pid; /* (PL) */ + u_int si_status; /* (PL) */ + u_int si_code; /* (PL) */ + uid_t si_uid; /* (PL) */ + + void * vm_shm; /* (SYSV SHM Lock) for sysV shared memory */ + +#if CONFIG_DTRACE + user_addr_t p_dtrace_argv; /* (write once, read only after that) */ + user_addr_t p_dtrace_envp; /* (write once, read only after that) */ + lck_mtx_t p_dtrace_sprlock; /* sun proc lock emulation */ + int p_dtrace_probes; /* (PL) are there probes for this proc? */ + u_int p_dtrace_count; /* (sprlock) number of DTrace tracepoints */ + uint8_t p_dtrace_stop; /* indicates a DTrace-desired stop */ + struct dtrace_ptss_page* p_dtrace_ptss_pages; /* (sprlock) list of user ptss pages */ + struct dtrace_ptss_page_entry* p_dtrace_ptss_free_list; /* (atomic) list of individual ptss entries */ + struct dtrace_helpers* p_dtrace_helpers; /* (dtrace_lock) DTrace per-proc private */ + struct dof_ioctl_data* p_dtrace_lazy_dofs; /* (sprlock) unloaded dof_helper_t's */ +#endif /* CONFIG_DTRACE */ + +/* XXXXXXXXXXXXX BCOPY'ed on fork XXXXXXXXXXXXXXXX */ +/* The following fields are all copied upon creation in fork. */ +#define p_startcopy p_argslen - /* scheduling */ - u_int p_estcpu; /* Time averaged value of p_cpticks. */ - int p_cpticks; /* Ticks of cpu time. */ - fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */ - void *p_wchan; /* Sleep address. */ - char *p_wmesg; /* Reason for sleep. */ - u_int p_swtime; /* DEPRECATED (Time swapped in or out.) */ -#define p_argslen p_swtime /* Length of process arguments. */ - u_int p_slptime; /* Time since last blocked. */ + u_int p_argslen; /* Length of process arguments. */ + int p_argc; /* saved argc for sysctl_procargs() */ + user_addr_t user_stack; /* where user stack was allocated */ + struct vnode *p_textvp; /* Vnode of executable. */ + off_t p_textoff; /* offset in executable vnode */ - struct itimerval p_realtimer; /* Alarm timer. */ - struct timeval p_rtime; /* Real time. */ - u_quad_t p_uticks; /* Statclock hits in user mode. */ - u_quad_t p_sticks; /* Statclock hits in system mode. */ - u_quad_t p_iticks; /* Statclock hits processing intr. */ + sigset_t p_sigmask; /* DEPRECATED */ + sigset_t p_sigignore; /* Signals being ignored. (PL) */ + sigset_t p_sigcatch; /* Signals being caught by user.(PL) */ - int p_traceflag; /* Kernel trace points. */ - struct vnode *p_tracep; /* Trace to vnode. */ + u_char p_priority; /* (NU) Process priority. */ + u_char p_resv0; /* (NU) User-priority based on p_cpu and p_nice. */ + char p_nice; /* Process "nice" value.(PL) */ + u_char p_resv1; /* (NU) User-priority based on p_cpu and p_nice. */ - sigset_t p_siglist; /* DEPRECATED. */ +#if CONFIG_MACF + int p_mac_enforce; /* MAC policy enforcement control */ +#endif - struct vnode *p_textvp; /* Vnode of executable. */ + char p_comm[MAXCOMLEN+1]; + char p_name[(2*MAXCOMLEN)+1]; /* PL */ -/* End area that is zeroed on creation. */ -#define p_endzero p_hash.le_next + struct pgrp *p_pgrp; /* Pointer to process group. (LL) */ + uint32_t p_csflags; /* flags for codesign (PL) */ + uint32_t p_pcaction; /* action for process control on starvation */ + uint8_t p_uuid[16]; /* from LC_UUID load command */ - /* - * Not copied, not zero'ed. - * Belongs after p_pid, but here to avoid shifting proc elements. + /* + * CPU type and subtype of binary slice executed in + * this process. Protected by proc lock. */ - LIST_ENTRY(proc) p_hash; /* Hash chain. */ - TAILQ_HEAD( ,eventqelt) p_evlist; + cpu_type_t p_cputype; + cpu_subtype_t p_cpusubtype; -/* The following fields are all copied upon creation in fork. */ -#define p_startcopy p_sigmask +/* End area that is copied on creation. */ +/* XXXXXXXXXXXXX End of BCOPY'ed on fork (AIOLOCK)XXXXXXXXXXXXXXXX */ +#define p_endcopy p_aio_total_count + int p_aio_total_count; /* all allocated AIO requests for this proc */ + int p_aio_active_count; /* all unfinished AIO requests for this proc */ + TAILQ_HEAD( , aio_workq_entry ) p_aio_activeq; /* active async IO requests */ + TAILQ_HEAD( , aio_workq_entry ) p_aio_doneq; /* completed async IO requests */ - sigset_t p_sigmask; /* DEPRECATED */ - sigset_t p_sigignore; /* Signals being ignored. */ - sigset_t p_sigcatch; /* Signals being caught by user. */ + struct klist p_klist; /* knote list (PL ?)*/ - u_char p_priority; /* Process priority. */ - u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */ - char p_nice; /* Process "nice" value. */ - char p_comm[MAXCOMLEN+1]; + struct rusage_superset *p_ru; /* Exit information. (PL) */ + int p_sigwaitcnt; + thread_t p_signalholder; + thread_t p_transholder; - struct pgrp *p_pgrp; /* Pointer to process group. */ - -/* End area that is copied on creation. */ -#define p_endcopy p_xstat - - u_short p_xstat; /* Exit status for wait; also stop signal. */ + /* DEPRECATE following field */ u_short p_acflag; /* Accounting flags. */ - struct rusage *p_ru; /* Exit information. XXX */ + volatile u_short p_vfs_iopolicy; /* VFS iopolicy flags. (atomic bit ops) */ + + struct lctx *p_lctx; /* Pointer to login context. */ + LIST_ENTRY(proc) p_lclist; /* List of processes in lctx. */ + user_addr_t p_threadstart; /* pthread start fn */ + user_addr_t p_wqthread; /* pthread workqueue fn */ + int p_pthsize; /* pthread size */ + uint32_t p_pth_tsd_offset; /* offset from pthread_t to TSD for new threads */ + user_addr_t p_targconc; /* target concurrency ptr */ + user_addr_t p_stack_addr_hint; /* stack allocation hint for wq threads */ + void * p_wqptr; /* workq ptr */ + int p_wqsize; /* allocated size */ + boolean_t p_wqiniting; /* semaphore to serialze wq_open */ + lck_spin_t p_wqlock; /* lock to protect work queue */ + struct timeval p_start; /* starting time */ + void * p_rcall; + int p_ractive; + int p_idversion; /* version of process identity */ + void * p_pthhash; /* pthread waitqueue hash */ + volatile uint64_t was_throttled __attribute__((aligned(8))); /* Counter for number of throttled I/Os */ + volatile uint64_t did_throttle __attribute__((aligned(8))); /* Counter for number of I/Os this proc throttled */ - int p_debugger; /* 1: can exec set-bit programs if suser */ - - void *task; /* corresponding task */ - void *sigwait_thread; /* 'thread' holding sigwait */ - char signal_lock[72]; - boolean_t sigwait; /* indication to suspend */ - void *exit_thread; /* Which thread is exiting? */ - user_addr_t user_stack; /* where user stack was allocated */ - void * exitarg; /* exit arg for proc terminate */ - void * vm_shm; /* for sysV shared memory */ - int p_argc; /* saved argc for sysctl_procargs() */ - int p_vforkcnt; /* number of outstanding vforks */ - void * p_vforkact; /* activation running this vfork proc */ - TAILQ_HEAD( , uthread) p_uthlist; /* List of uthreads */ - /* Following fields are info from SIGCHLD */ - pid_t si_pid; - u_short si_status; - u_short si_code; - uid_t si_uid; - TAILQ_HEAD( , aio_workq_entry ) aio_activeq; /* active async IO requests */ - int aio_active_count; /* entries on aio_activeq */ - TAILQ_HEAD( , aio_workq_entry ) aio_doneq; /* completed async IO requests */ - int aio_done_count; /* entries on aio_doneq */ - - struct klist p_klist; /* knote list */ - lck_mtx_t p_mlock; /* proc lock to protect evques */ - lck_mtx_t p_fdmlock; /* proc lock to protect evques */ +#if DIAGNOSTIC unsigned int p_fdlock_pc[4]; unsigned int p_fdunlock_pc[4]; - int p_fpdrainwait; - unsigned int p_lflag; /* local flags */ - unsigned int p_ladvflag; /* local adv flags*/ - unsigned int p_internalref; /* temp refcount field */ -#if DIAGNOSTIC #if SIGNAL_DEBUG unsigned int lockpc[8]; unsigned int unlockpc[8]; #endif /* SIGNAL_DEBUG */ #endif /* DIAGNOSTIC */ + uint64_t p_dispatchqueue_offset; + uint64_t p_dispatchqueue_serialno_offset; +#if VM_PRESSURE_EVENTS + struct timeval vm_pressure_last_notify_tstamp; +#endif + +#if CONFIG_MEMORYSTATUS + /* Fields protected by proc list lock */ + TAILQ_ENTRY(proc) p_memstat_list; /* priority bucket link */ + uint32_t p_memstat_state; /* state */ + int32_t p_memstat_effectivepriority; /* priority after transaction state accounted for */ + int32_t p_memstat_requestedpriority; /* active priority */ + uint32_t p_memstat_dirty; /* dirty state */ + uint64_t p_memstat_userdata; /* user state */ + uint64_t p_memstat_idledeadline; /* time at which process became clean */ +#if CONFIG_JETSAM + int32_t p_memstat_memlimit; /* cached memory limit */ +#endif +#if CONFIG_FREEZE + uint32_t p_memstat_suspendedfootprint; /* footprint at time of suspensions */ +#endif /* CONFIG_FREEZE */ +#endif /* CONFIG_MEMORYSTATUS */ }; +#define PGRPID_DEAD 0xdeaddead + +/* p_listflag */ +#define P_LIST_DRAIN 0x00000001 +#define P_LIST_DRAINWAIT 0x00000002 +#define P_LIST_DRAINED 0x00000004 +#define P_LIST_DEAD 0x00000008 +#define P_LIST_WAITING 0x00000010 +#define P_LIST_EXITED 0x00000040 +#define P_LIST_CHILDDRSTART 0x00000080 +#define P_LIST_CHILDDRAINED 0x00000100 +#define P_LIST_CHILDDRWAIT 0x00000200 +#define P_LIST_CHILDLKWAIT 0x00000400 +#define P_LIST_DEADPARENT 0x00000800 +#define P_LIST_PARENTREFWAIT 0x00001000 +#define P_LIST_INCREATE 0x00002000 +/* 0x4000 & 0x8000 Not used */ +#define P_LIST_INHASH 0x00010000 /* process is in hash */ +#define P_LIST_INPGRP 0x00020000 /* process is in pgrp */ +#define P_LIST_PGRPTRANS 0x00040000 /* pgrp is getting replaced */ +#define P_LIST_PGRPTRWAIT 0x00080000 /* wait for pgrp replacement */ +#define P_LIST_EXITCOUNT 0x00100000 /* counted for process exit */ + /* local flags */ -#define P_LDELAYTERM 0x1 /* */ -#define P_LNOZOMB 0x2 /* */ -#define P_LLOW_PRI_IO 0x4 -#define P_LPEXIT 0x8 -#define P_LBACKGROUND_IO 0x10 -#define P_LWAITING 0x20 -#define P_LREFDRAIN 0x40 -#define P_LREFDRAINWAIT 0x80 -#define P_LREFDEAD 0x100 - -/* advisory flags in the proc */ +#define P_LDELAYTERM 0x00000001 /* */ +#define P_LNOZOMB 0x00000002 /* */ +#define P_LTERM 0x00000004 /* */ +#define P_LEXIT 0x00000008 /* */ +#define P_LPEXIT 0x00000010 +#define P_LTRANSCOMMIT 0x00000020 /* process is committed to trans */ +#define P_LINTRANSIT 0x00000040 /* process in exec or in creation */ +#define P_LTRANSWAIT 0x00000080 /* waiting for trans to complete */ +#define P_LVFORK 0x00000100 /* parent proc of a vfork */ +#define P_LINVFORK 0x00000200 /* child proc of a vfork */ +#define P_LTRACED 0x00000400 /* */ +#define P_LSIGEXC 0x00000800 /* */ +#define P_LNOATTACH 0x00001000 /* */ +#define P_LPPWAIT 0x00002000 /* */ +#define P_LKQWDRAIN 0x00004000 +#define P_LKQWDRAINWAIT 0x00008000 +#define P_LKQWDEAD 0x00010000 +#define P_LLIMCHANGE 0x00020000 +#define P_LLIMWAIT 0x00040000 +#define P_LWAITED 0x00080000 +#define P_LINSIGNAL 0x00100000 +#define P_UNUSED 0x00200000 /* Unused */ +#define P_LRAGE_VNODES 0x00400000 +#define P_LREGISTER 0x00800000 /* thread start fns registered */ +#define P_LVMRSRCOWNER 0x01000000 /* can handle the resource ownership of */ +/* old P_LPTERMINATE 0x02000000 */ +#define P_LTERM_DECRYPTFAIL 0x04000000 /* process terminating due to key failure to decrypt */ +#define P_LTERM_JETSAM 0x08000000 /* process is being jetsam'd */ +#define P_JETSAM_VMPAGESHORTAGE 0x00000000 /* jetsam: lowest jetsam priority proc, killed due to vm page shortage */ +#define P_JETSAM_VMTHRASHING 0x10000000 /* jetsam: lowest jetsam priority proc, killed due to vm thrashing */ +#define P_JETSAM_HIWAT 0x20000000 /* jetsam: high water mark */ +#define P_JETSAM_PID 0x30000000 /* jetsam: pid */ +#define P_JETSAM_IDLEEXIT 0x40000000 /* jetsam: idle exit */ +#define P_JETSAM_VNODE 0x50000000 /* jetsam: vnode kill */ +#define P_JETSAM_FCTHRASHING 0x60000000 /* jetsam: lowest jetsam priority proc, killed due to filecache thrashing */ +#define P_JETSAM_MASK 0x70000000 /* jetsam type mask */ + +/* Process control state for resource starvation */ +#define P_PCTHROTTLE 1 +#define P_PCSUSP 2 +#define P_PCKILL 3 +#define P_PCMAX 3 + +/* Process control action state on resrouce starvation */ +#define PROC_ACTION_MASK 0xffff0000; +#define PROC_CONTROL_STATE(p) (p->p_pcaction & P_PCMAX) +#define PROC_ACTION_STATE(p) ((p->p_pcaction >> 16) & P_PCMAX) +#define PROC_SETACTION_STATE(p) (p->p_pcaction = (PROC_CONTROL_STATE(p) | (PROC_CONTROL_STATE(p) << 16))) +#define PROC_RESETACTION_STATE(p) (p->p_pcaction = PROC_CONTROL_STATE(p)) + +/* additional process flags */ #define P_LADVLOCK 0x01 -// LP64todo - should this move? +/* p_vfs_iopolicy flags */ +#define P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY 0x0001 + +/* defns for proc_iterate */ +#define PROC_ALLPROCLIST 1 /* walk the allproc list (procs not exited yet) */ +#define PROC_ZOMBPROCLIST 2 /* walk the zombie list */ +#define PROC_NOWAITTRANS 4 /* do not wait for transitions (checkdirs only) */ + +/* defns for pgrp_iterate */ +#define PGRP_DROPREF 1 +#define PGRP_BLOCKITERATE 2 + +/* return values of the proc iteration callback routine */ +#define PROC_RETURNED 0 +#define PROC_RETURNED_DONE 1 +#define PROC_CLAIMED 2 +#define PROC_CLAIMED_DONE 3 + +/* process creation arguments */ +#define PROC_CREATE_FORK 0 /* independent child (running) */ +#define PROC_CREATE_SPAWN 1 /* independent child (suspended) */ +#define PROC_CREATE_VFORK 2 /* child borrows context */ + + /* LP64 version of extern_proc. all pointers * grow when we're dealing with a 64-bit process. * WARNING - keep in sync with extern_proc @@ -258,17 +525,66 @@ struct proc { #ifdef KERNEL #include /* user_timeval, user_itimerval */ -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif - -struct user_extern_proc { +#pragma pack(4) +struct user32_extern_proc { + union { + struct { + uint32_t __p_forw; /* Doubly-linked run/sleep queue. */ + uint32_t __p_back; + } p_st1; + struct user32_timeval __p_starttime; /* process start time */ + } p_un; + uint32_t p_vmspace; /* Address space. */ + uint32_t p_sigacts; /* Signal actions, state (PROC ONLY). */ + int p_flag; /* P_* flags. */ + char p_stat; /* S* process status. */ + pid_t p_pid; /* Process identifier. */ + pid_t p_oppid; /* Save parent pid during ptrace. XXX */ + int p_dupfd; /* Sideways return value from fdopen. XXX */ + /* Mach related */ + uint32_t user_stack; /* where user stack was allocated */ + uint32_t exit_thread; /* XXX Which thread is exiting? */ + int p_debugger; /* allow to debug */ + boolean_t sigwait; /* indication to suspend */ + /* scheduling */ + u_int p_estcpu; /* Time averaged value of p_cpticks. */ + int p_cpticks; /* Ticks of cpu time. */ + fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */ + uint32_t p_wchan; /* Sleep address. */ + uint32_t p_wmesg; /* Reason for sleep. */ + u_int p_swtime; /* Time swapped in or out. */ + u_int p_slptime; /* Time since last blocked. */ + struct user32_itimerval p_realtimer; /* Alarm timer. */ + struct user32_timeval p_rtime; /* Real time. */ + u_quad_t p_uticks; /* Statclock hits in user mode. */ + u_quad_t p_sticks; /* Statclock hits in system mode. */ + u_quad_t p_iticks; /* Statclock hits processing intr. */ + int p_traceflag; /* Kernel trace points. */ + uint32_t p_tracep; /* Trace to vnode. */ + int p_siglist; /* DEPRECATED */ + uint32_t p_textvp; /* Vnode of executable. */ + int p_holdcnt; /* If non-zero, don't swap. */ + sigset_t p_sigmask; /* DEPRECATED. */ + sigset_t p_sigignore; /* Signals being ignored. */ + sigset_t p_sigcatch; /* Signals being caught by user. */ + u_char p_priority; /* Process priority. */ + u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */ + char p_nice; /* Process "nice" value. */ + char p_comm[MAXCOMLEN+1]; + uint32_t p_pgrp; /* Pointer to process group. */ + uint32_t p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */ + u_short p_xstat; /* Exit status for wait; also stop signal. */ + u_short p_acflag; /* Accounting flags. */ + uint32_t p_ru; /* Exit information. XXX */ +}; +#pragma pack() +struct user64_extern_proc { union { struct { user_addr_t __p_forw; /* Doubly-linked run/sleep queue. */ user_addr_t __p_back; } p_st1; - struct user_timeval __p_starttime; /* process start time */ + struct user64_timeval __p_starttime; /* process start time */ } p_un; user_addr_t p_vmspace; /* Address space. */ user_addr_t p_sigacts; /* Signal actions, state (PROC ONLY). */ @@ -278,7 +594,7 @@ struct user_extern_proc { pid_t p_oppid; /* Save parent pid during ptrace. XXX */ int p_dupfd; /* Sideways return value from fdopen. XXX */ /* Mach related */ - user_addr_t user_stack; /* where user stack was allocated */ + user_addr_t user_stack __attribute((aligned(8))); /* where user stack was allocated */ user_addr_t exit_thread; /* XXX Which thread is exiting? */ int p_debugger; /* allow to debug */ boolean_t sigwait; /* indication to suspend */ @@ -286,19 +602,19 @@ struct user_extern_proc { u_int p_estcpu; /* Time averaged value of p_cpticks. */ int p_cpticks; /* Ticks of cpu time. */ fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */ - user_addr_t p_wchan; /* Sleep address. */ + user_addr_t p_wchan __attribute((aligned(8))); /* Sleep address. */ user_addr_t p_wmesg; /* Reason for sleep. */ u_int p_swtime; /* Time swapped in or out. */ u_int p_slptime; /* Time since last blocked. */ - struct user_itimerval p_realtimer; /* Alarm timer. */ - struct user_timeval p_rtime; /* Real time. */ + struct user64_itimerval p_realtimer; /* Alarm timer. */ + struct user64_timeval p_rtime; /* Real time. */ u_quad_t p_uticks; /* Statclock hits in user mode. */ u_quad_t p_sticks; /* Statclock hits in system mode. */ u_quad_t p_iticks; /* Statclock hits processing intr. */ int p_traceflag; /* Kernel trace points. */ - user_addr_t p_tracep; /* Trace to vnode. */ + user_addr_t p_tracep __attribute((aligned(8))); /* Trace to vnode. */ int p_siglist; /* DEPRECATED */ - user_addr_t p_textvp; /* Vnode of executable. */ + user_addr_t p_textvp __attribute((aligned(8))); /* Vnode of executable. */ int p_holdcnt; /* If non-zero, don't swap. */ sigset_t p_sigmask; /* DEPRECATED. */ sigset_t p_sigignore; /* Signals being ignored. */ @@ -307,16 +623,12 @@ struct user_extern_proc { u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */ char p_nice; /* Process "nice" value. */ char p_comm[MAXCOMLEN+1]; - user_addr_t p_pgrp; /* Pointer to process group. */ + user_addr_t p_pgrp __attribute((aligned(8))); /* Pointer to process group. */ user_addr_t p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */ u_short p_xstat; /* Exit status for wait; also stop signal. */ u_short p_acflag; /* Accounting flags. */ - user_addr_t p_ru; /* Exit information. XXX */ + user_addr_t p_ru __attribute((aligned(8))); /* Exit information. XXX */ }; - -#if __DARWIN_ALIGN_NATURAL -#pragma options align=reset -#endif #endif /* KERNEL */ /* @@ -324,14 +636,34 @@ struct user_extern_proc { * as it is used to represent "no process group". */ extern int nprocs, maxproc; /* Current and max number of procs. */ -__private_extern__ int hard_maxproc; /* hard limit */ - -#define PID_MAX 30000 -#define NO_PID 30001 - -#define SESS_LEADER(p) ((p)->p_session->s_leader == (p)) -#define SESSHOLD(s) ((s)->s_count++) -#define SESSRELE(s) sessrele(s) +extern int maxprocperuid; /* Current number of procs per uid */ +extern int hard_maxproc; /* hard limit */ +extern unsigned int proc_shutdown_exitcount; + +#define PID_MAX 99999 +#define NO_PID 100000 +extern lck_mtx_t * proc_list_mlock; +extern lck_mtx_t * proc_klist_mlock; + +#define BSD_SIMUL_EXECS 33 /* 32 , allow for rounding */ +#define BSD_PAGEABLE_SIZE_PER_EXEC (NCARGS + PAGE_SIZE + PAGE_SIZE) /* page for apple vars, page for executable header */ +extern int execargs_cache_size; +extern int execargs_free_count; +extern vm_offset_t * execargs_cache; + +#define SESS_LEADER(p, sessp) ((sessp)->s_leader == (p)) + +/* Lock and unlock a login context. */ +#define LCTX_LOCK(lc) lck_mtx_lock(&(lc)->lc_mtx) +#define LCTX_UNLOCK(lc) lck_mtx_unlock(&(lc)->lc_mtx) +#define LCTX_LOCKED(lc) +#define LCTX_LOCK_ASSERT(lc, type) +#define ALLLCTX_LOCK lck_mtx_lock(&alllctx_lock) +#define ALLLCTX_UNLOCK lck_mtx_unlock(&alllctx_lock) +extern lck_mtx_t alllctx_lock; +extern lck_grp_t * lctx_lck_grp; +extern lck_grp_attr_t * lctx_lck_grp_attr; +extern lck_attr_t * lctx_lck_attr; #define PIDHASH(pid) (&pidhashtbl[(pid) & pidhash]) extern LIST_HEAD(pidhashhead, proc) *pidhashtbl; @@ -340,7 +672,16 @@ extern u_long pidhash; #define PGRPHASH(pgid) (&pgrphashtbl[(pgid) & pgrphash]) extern LIST_HEAD(pgrphashhead, pgrp) *pgrphashtbl; extern u_long pgrphash; +#define SESSHASH(sessid) (&sesshashtbl[(sessid) & sesshash]) +extern LIST_HEAD(sesshashhead, session) *sesshashtbl; +extern u_long sesshash; + extern lck_grp_t * proc_lck_grp; +#if CONFIG_FINE_LOCK_GROUPS +extern lck_grp_t * proc_mlock_grp; +extern lck_grp_t * proc_fdmlock_grp; +extern lck_grp_t * proc_slock_grp; +#endif extern lck_grp_attr_t * proc_lck_grp_attr; extern lck_attr_t * proc_lck_attr; @@ -348,24 +689,38 @@ LIST_HEAD(proclist, proc); extern struct proclist allproc; /* List of all processes. */ extern struct proclist zombproc; /* List of zombie processes. */ extern struct proc *initproc; -extern void pgdelete(struct pgrp *pgrp); -extern void sessrele(struct session *sess); extern void procinit(void); extern void proc_lock(struct proc *); extern void proc_unlock(struct proc *); +extern void proc_spinlock(struct proc *); +extern void proc_spinunlock(struct proc *); +extern void proc_list_lock(void); +extern void proc_list_unlock(void); +extern void proc_klist_lock(void); +extern void proc_klist_unlock(void); extern void proc_fdlock(struct proc *); +extern void proc_fdlock_spin(struct proc *); extern void proc_fdunlock(struct proc *); -__private_extern__ char *proc_core_name(const char *name, uid_t uid, pid_t pid); +extern void proc_fdlock_assert(proc_t p, int assertflags); +__private_extern__ int proc_core_name(const char *name, uid_t uid, pid_t pid, + char *cr_name, size_t cr_name_len); extern int isinferior(struct proc *, struct proc *); -extern struct proc *pfind(pid_t); /* Find process by id. */ __private_extern__ struct proc *pzfind(pid_t); /* Find zombie by id. */ -extern struct pgrp *pgfind(pid_t); /* Find process group by id. */ +__private_extern__ struct proc *proc_find_zombref(pid_t); /* Find zombie by id. */ +__private_extern__ void proc_drop_zombref(struct proc * p); /* Find zombie by id. */ + + +extern struct lctx *lcfind(pid_t); /* Find a login context by id */ +extern struct lctx *lccreate(void); /* Create a new login context */ extern int chgproccnt(uid_t uid, int diff); +extern void enterlctx(struct proc *p, struct lctx *l, int create); +extern void pinsertchild(struct proc *parent, struct proc *child); extern int enterpgrp(struct proc *p, pid_t pgid, int mksess); extern void fixjobc(struct proc *p, struct pgrp *pgrp, int entering); extern int inferior(struct proc *p); extern int leavepgrp(struct proc *p); +extern void leavelctx(struct proc *p); extern void resetpriority(struct proc *); extern void setrunnable(struct proc *); extern void setrunqueue(struct proc *); @@ -373,10 +728,77 @@ extern int sleep(void *chan, int pri); extern int tsleep0(void *chan, int pri, const char *wmesg, int timo, int (*continuation)(int)); extern int tsleep1(void *chan, int pri, const char *wmesg, u_int64_t abstime, int (*continuation)(int)); extern int msleep0(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, int timo, int (*continuation)(int)); -extern void vfork_return(thread_t th_act, struct proc *p, struct proc *p2, register_t *retval); -extern struct proc * proc_findref(pid_t pid); -extern void proc_dropref(struct proc * p); -extern struct proc * proc_refinternal(proc_t p, int funneled); -extern void proc_dropinternal(struct proc * p, int funneled); - +extern void vfork_return(struct proc *child, int32_t *retval, int rval); +extern int exit1(struct proc *, int, int *); +extern int exit1_internal(struct proc *, int, int *, boolean_t, boolean_t, int); +extern int fork1(proc_t, thread_t *, int, coalition_t); +extern void vfork_exit_internal(struct proc *p, int rv, int forced); +extern void proc_reparentlocked(struct proc *child, struct proc * newparent, int cansignal, int locked); +extern int pgrp_iterate(struct pgrp * pgrp, int flags, int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg); +extern int proc_iterate(int flags, int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg); +extern int proc_rebootscan(int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg); +extern int proc_childrenwalk(proc_t p, int (*callout)(proc_t , void *), void *arg); +extern proc_t proc_findinternal(int pid, int locked); +extern proc_t proc_findthread(thread_t thread); +extern void proc_refdrain(proc_t); +extern void proc_childdrainlocked(proc_t); +extern void proc_childdrainstart(proc_t); +extern void proc_childdrainend(proc_t); +extern void proc_checkdeadrefs(proc_t); +struct proc *pfind_locked(pid_t); +extern struct pgrp *pgfind(pid_t); +extern void pg_rele(struct pgrp * pgrp); +extern struct session * session_find_internal(pid_t sessid); +extern struct pgrp * proc_pgrp(proc_t); +extern struct pgrp * tty_pgrp(struct tty * tp); +extern struct pgrp * pgfind_internal(pid_t); +extern struct session * proc_session(proc_t); +extern void pgrp_lock(struct pgrp * pgrp); +extern void pgrp_unlock(struct pgrp * pgrp); +extern void session_lock(struct session * sess); +extern void session_unlock(struct session * sess); +extern struct session * pgrp_session(struct pgrp * pgrp); +extern void session_rele(struct session *sess); +extern int isbackground(proc_t p, struct tty *tp); +extern proc_t proc_parent(proc_t); +extern proc_t proc_parentholdref(proc_t); +extern int proc_parentdropref(proc_t, int); +int itimerfix(struct timeval *tv); +int itimerdecr(struct proc * p, struct itimerval *itp, int usec); +void proc_signalstart(struct proc *, int locked); +void proc_signalend(struct proc *, int locked); +int proc_transstart(struct proc *, int locked, int non_blocking); +void proc_transcommit(struct proc *, int locked); +void proc_transend(struct proc *, int locked); +int proc_transwait(struct proc *, int locked); +void proc_rele_locked(struct proc * p); +struct proc *proc_ref_locked(struct proc * p); +void proc_knote(struct proc * p, long hint); +void proc_knote_drain(struct proc *p); +void workqueue_init_lock(proc_t p); +void workqueue_destroy_lock(proc_t p); +void proc_setregister(proc_t p); +void proc_resetregister(proc_t p); +/* returns the first thread_t in the process, or NULL XXX for NFS, DO NOT USE */ +thread_t proc_thread(proc_t); +extern int proc_pendingsignals(proc_t, sigset_t); +int proc_getpcontrol(int pid, int * pcontrolp); +int proc_dopcontrol(proc_t p); +int proc_resetpcontrol(int pid); +#if PSYNCH +void pth_proc_hashinit(proc_t); +void pth_proc_hashdelete(proc_t); +void pth_global_hashinit(void); +extern thread_call_t psynch_thcall; +void psynch_wq_cleanup(__unused void * param, __unused void * param1); +extern lck_mtx_t * pthread_list_mlock; +#endif /* PSYNCH */ +struct uthread * current_uthread(void); + +/* return 1 if process is forcing case-sensitive HFS+ access, 0 for default */ +extern int proc_is_forcing_hfs_case_sensitivity(proc_t); + +pid_t dtrace_proc_selfpid(void); +pid_t dtrace_proc_selfppid(void); +uid_t dtrace_proc_selfruid(void); #endif /* !_SYS_PROC_INTERNAL_H_ */