X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/ff6e181ae92fc6f1e89841290f461d1f2f9badd9..c910b4d9d2451126ae3917b931cd4390c11e1d52:/bsd/sys/proc_internal.h diff --git a/bsd/sys/proc_internal.h b/bsd/sys/proc_internal.h index 4d5533da0..280e812b1 100644 --- a/bsd/sys/proc_internal.h +++ b/bsd/sys/proc_internal.h @@ -1,14 +1,19 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2007 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * 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. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. + * 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. + * + * 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 @@ -18,7 +23,7 @@ * 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 */ /*- @@ -60,45 +65,110 @@ * * @(#)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 __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) */ + 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 + +/* + * 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_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 - /* * Description of a process. * @@ -111,122 +181,158 @@ struct proc; * is running. */ struct proc { - LIST_ENTRY(proc) p_list; /* List of all processes. */ + LIST_ENTRY(proc) p_list; /* List of all processes. */ - /* 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). */ + 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)*/ -#define p_rlimit p_limit->pl_rlimit + lck_mtx_t p_mlock; /* mutex lock for proc */ - int p_flag; /* P_* flags. */ - char p_stat; /* S* process status. */ - char p_shutdownstate; - char p_pad1[2]; + char p_stat; /* S* process status. (PL)*/ + char p_shutdownstate; + char p_kdebug; /* P_KDEBUG eq (CC)*/ + char p_btrace; /* P_BTRACE eq (CC)*/ - 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. */ + 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) */ -/* The following fields are all zeroed upon creation in fork. */ -#define p_startzero p_oppid + LIST_ENTRY(proc) p_hash; /* Hash chain. (LL)*/ + TAILQ_HEAD( ,eventqelt) p_evlist; /* (PL) */ - pid_t p_oppid; /* Save parent pid during ptrace. XXX */ - int p_dupfd; /* Sideways return value from fdopen. XXX */ + lck_mtx_t p_fdmlock; /* proc lock to protect fdesc */ - /* 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. */ + /* substructures: */ + 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) */ - 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. */ + struct sigacts *p_sigacts; /* Signal actions, state (PL) */ + lck_spin_t p_slock; /* spin lock for itimer/profil protection */ - int p_traceflag; /* Kernel trace points. */ - struct vnode *p_tracep; /* Trace to vnode. */ +#define p_rlimit p_limit->pl_rlimit - sigset_t p_siglist; /* DEPRECATED. */ + 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 */ + 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 + 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 */ -/* End area that is zeroed on creation. */ -#define p_endzero p_hash.le_next - - /* - * Not copied, not zero'ed. - * Belongs after p_pid, but here to avoid shifting proc elements. - */ - LIST_ENTRY(proc) p_hash; /* Hash chain. */ - TAILQ_HEAD( ,eventqelt) p_evlist; + sigset_t p_sigmask; /* DEPRECATED */ + sigset_t p_sigignore; /* Signals being ignored. (PL) */ + sigset_t p_sigcatch; /* Signals being caught by user.(PL) */ -/* The following fields are all copied upon creation in fork. */ -#define p_startcopy p_sigmask + 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_sigmask; /* DEPRECATED */ - sigset_t p_sigignore; /* Signals being ignored. */ - sigset_t p_sigcatch; /* Signals being caught by user. */ +#if CONFIG_MACF + int p_mac_enforce; /* MAC policy enforcement control */ +#endif - 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]; + char p_name[(2*MAXCOMLEN)+1]; /* PL */ - struct pgrp *p_pgrp; /* Pointer to process group. */ + struct pgrp *p_pgrp; /* Pointer to process group. (LL) */ + int p_iopol_disk; /* disk I/O policy (PL) */ + uint32_t p_csflags; /* flags for codesign (PL) */ /* End area that is copied on creation. */ -#define p_endcopy p_xstat - - u_short p_xstat; /* Exit status for wait; also stop signal. */ - u_short p_acflag; /* Accounting flags. */ - struct rusage *p_ru; /* Exit information. XXX */ - - 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 */ +/* XXXXXXXXXXXXX End of BCOPY'ed on fork (AIOLOCK)XXXXXXXXXXXXXXXX */ +#define p_endcopy aio_active_count 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 */ + TAILQ_HEAD( , aio_workq_entry ) aio_activeq; /* active async IO requests */ + TAILQ_HEAD( , aio_workq_entry ) aio_doneq; /* completed async IO requests */ + + struct klist p_klist; /* knote list (PL ?)*/ + + struct rusage *p_ru; /* Exit information. (PL) */ + thread_t p_signalholder; + thread_t p_transholder; + + /* DEPRECATE following field */ + u_short p_acflag; /* Accounting flags. */ - 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 */ + 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 */ + void * p_wqptr; /* workq ptr */ + int p_wqsize; /* allocated size */ + lck_mtx_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 */ +#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]; @@ -234,22 +340,73 @@ struct proc { #endif /* DIAGNOSTIC */ }; +#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 */ + /* 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 +#define P_LDELAYTERM 0x00000001 /* */ +#define P_LNOZOMB 0x00000002 /* */ +#define P_LTERM 0x00000004 /* */ +#define P_LEXIT 0x00000008 /* */ +#define P_LPEXIT 0x00000010 +#define P_LTHSIGSTACK 0x00000020 +#define P_LINTRANSIT 0x00000040 /* process in exec or in creation */ +#define P_LTRANSWAIT 0x00000080 /* waiting for trans to complete */ +#define P_LVFORK 0x00000100 /* */ +#define P_LINVFORK 0x00000200 /* */ +#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_LSIGNALWAIT 0x00200000 +#define P_LRAGE_VNODES 0x00400000 /* advisory flags in the proc */ #define P_LADVLOCK 0x01 -// LP64todo - should this move? +/* 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 + + /* LP64 version of extern_proc. all pointers * grow when we're dealing with a 64-bit process. * WARNING - keep in sync with extern_proc @@ -259,10 +416,6 @@ struct proc { #ifdef KERNEL #include /* user_timeval, user_itimerval */ -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif - struct user_extern_proc { union { struct { @@ -279,7 +432,7 @@ 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 */ @@ -287,7 +440,7 @@ 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. */ @@ -297,9 +450,9 @@ struct user_extern_proc { 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. */ @@ -308,16 +461,12 @@ 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 */ /* @@ -325,14 +474,27 @@ struct user_extern_proc { * as it is used to represent "no process group". */ extern int nprocs, maxproc; /* Current and max number of procs. */ +extern int maxprocperuid; /* Current number of procs per uid */ __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) +#define PID_MAX 99999 +#define NO_PID 100000 +extern lck_mtx_t * proc_list_mlock; +extern lck_mtx_t * proc_klist_mlock; + +#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; @@ -341,6 +503,10 @@ 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; extern lck_grp_attr_t * proc_lck_grp_attr; extern lck_attr_t * proc_lck_attr; @@ -349,24 +515,35 @@ 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 procinit(void) __attribute__((section("__TEXT, initcode"))); 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. */ + +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 *); @@ -374,10 +551,47 @@ 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, register_t *retval, int rval); +extern int exit1(struct proc *, int, int *); +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 funneled); +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); +void proc_transstart(struct proc *, int locked); +void proc_transend(struct proc *, int locked); +void proc_transwait(struct proc *, int locked); +void proc_rele_locked(struct proc * p); +void proc_knote(struct proc * p, long hint); +void workqueue_init_lock(proc_t p); +void workqueue_destroy_lock(proc_t p); #endif /* !_SYS_PROC_INTERNAL_H_ */