#include <sys/cdefs.h>
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/file.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/refcount.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/rwlock.h>
#include <sys/sched.h>
#include <sys/sx.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/time.h>
#include <sys/umtx.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>

Include dependency graph for kern_resource.c:

Data Structures
struct	setpriority_args

struct	rtprio_thread_args

struct	rtprio_args

struct	__setrlimit_args

struct	__getrlimit_args

struct	getrusage_args

Macros
#define	UIHASH(uid) (&uihashtbl[(uid) & uihash])

Functions
	__FBSDID ("$BSDSUniX$")

static	MALLOC_DEFINE (M_PLIMIT,"plimit","plimit structures")

static	MALLOC_DEFINE (M_UIDINFO,"uidinfo","uidinfo structures")

static	LIST_HEAD (uihashhead, uidinfo)

int	sys_getpriority (struct thread td, struct getpriority_args uap)

int	sys_setpriority (struct thread td, struct setpriority_args uap)

static int	donice (struct thread td, struct proc p, int n)

	SYSCTL_INT (_security_bsd, OID_AUTO, unprivileged_idprio, CTLFLAG_RW,&unprivileged_idprio, 0,"Allow non-root users to set an idle priority")

int	sys_rtprio_thread (struct thread td, struct rtprio_thread_args uap)

int	sys_rtprio (struct thread td, struct rtprio_args uap)

int	rtp_to_pri (struct rtprio rtp, struct thread td)

void	pri_to_rtp (struct thread td, struct rtprio rtp)

int	sys_setrlimit (struct thread td, struct __setrlimit_args uap)

static void	lim_cb (void *arg)

int	kern_setrlimit (struct thread td, u_int which, struct rlimit limp)

int	kern_proc_setrlimit (struct thread td, struct proc p, u_int which, struct rlimit *limp)

int	sys_getrlimit (struct thread td, struct __getrlimit_args uap)

void	calccru (struct proc p, struct timeval up, struct timeval *sp)

void	calcru (struct proc p, struct timeval up, struct timeval *sp)

void	rufetchtd (struct thread td, struct rusage ru)

static void	calcru1 (struct proc p, struct rusage_ext ruxp, struct timeval up, struct timeval sp)

int	sys_getrusage (struct thread td, struct getrusage_args uap)

int	kern_getrusage (struct thread td, int who, struct rusage rup)

void	rucollect (struct rusage ru, struct rusage ru2)

void	ruadd (struct rusage ru, struct rusage_ext rux, struct rusage ru2, struct rusage_ext rux2)

static void	ruxagg_locked (struct rusage_ext rux, struct thread td)

void	ruxagg (struct proc p, struct thread td)

void	rufetch (struct proc p, struct rusage ru)

void	rufetchcalc (struct proc p, struct rusage ru, struct timeval up, struct timeval sp)

struct plimit *	lim_alloc ()

struct plimit *	lim_hold (struct plimit *limp)

void	lim_fork (struct proc p1, struct proc p2)

void	lim_free (struct plimit *limp)

void	lim_copy (struct plimit dst, struct plimit src)

rlim_t	lim_max (struct proc *p, int which)

rlim_t	lim_cur (struct proc *p, int which)

void	lim_rlimit (struct proc p, int which, struct rlimit rlp)

void	uihashinit ()

static struct uidinfo *	uilookup (uid_t uid)

struct uidinfo *	uifind (uid_t uid)

void	uihold (struct uidinfo *uip)

void	uifree (struct uidinfo *uip)

void	ui_racct_foreach (void(callback)(struct racct racct, void arg2, void arg3), void arg2, void arg3)

int	chgproccnt (struct uidinfo *uip, int diff, rlim_t max)

int	chgsbsize (struct uidinfo uip, u_int hiwat, u_int to, rlim_t max)

int	chgptscnt (struct uidinfo *uip, int diff, rlim_t max)

Variables
static struct rwlock	uihashtbl_lock

static int	unprivileged_idprio

Macro Definition Documentation

#define UIHASH ( uid ) (&uihashtbl[(uid) & uihash])

Definition at line 72 of file kern_resource.c.

Referenced by uifind(), and uilookup().

Function Documentation

__FBSDID ( "$BSDSUniX$" )

void calccru	(	struct proc *	p,
		struct timeval *	up,
		struct timeval *	sp
	)

Definition at line 809 of file kern_resource.c.

References calcru1().

Referenced by fill_kinfo_proc_only(), kern_getrusage(), and proc_to_reap().

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void calcru	(	struct proc *	p,
		struct timeval *	up,
		struct timeval *	sp
	)

Definition at line 825 of file kern_resource.c.

References calcru1(), cpu_ticks, and ruxagg().

Referenced by fill_kinfo_proc_only(), kern_clock_gettime(), proc_to_reap(), and rufetchcalc().

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static void calcru1	(	struct proc *	p,
		struct rusage_ext *	ruxp,
		struct timeval *	up,
		struct timeval *	sp
	)

static

Definition at line 884 of file kern_resource.c.

References cputick2usec(), and printf().

Referenced by calccru(), calcru(), and rufetchtd().

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int chgproccnt	(	struct uidinfo *	uip,
		int	diff,
		rlim_t	max
	)

Definition at line 1357 of file kern_resource.c.

References printf().

Referenced by change_ruid(), fork1(), proc0_init(), and proc_reap().

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int chgptscnt	(	struct uidinfo *	uip,
		int	diff,
		rlim_t	max
	)

Definition at line 1409 of file kern_resource.c.

References printf().

Referenced by pts_alloc(), pts_alloc_external(), and ptsdrv_free().

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int chgsbsize	(	struct uidinfo *	uip,
		u_int *	hiwat,
		u_int	to,
		rlim_t	max
	)

Definition at line 1381 of file kern_resource.c.

References printf().

Referenced by sbrelease_internal(), sbreserve_locked(), sodealloc(), uipc_rcvd(), and uipc_send().

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static int donice	(	struct thread *	td,
		struct proc *	p,
		int	n
	)

static

Definition at line 260 of file kern_resource.c.

References p_cansched(), priv_check(), and sched_nice().

Referenced by sys_setpriority().

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int kern_getrusage	(	struct thread *	td,
		int	who,
		struct rusage *	rup
	)

Definition at line 979 of file kern_resource.c.

References calccru(), rufetchcalc(), and rufetchtd().

Referenced by sys_getrusage().

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int kern_proc_setrlimit	(	struct thread *	td,
		struct proc *	p,
		u_int	which,
		struct rlimit *	limp
	)

Definition at line 659 of file kern_resource.c.

References hz, lim_alloc(), lim_cb(), lim_copy(), lim_free(), maxdsiz, maxfilesperproc, maxprocperuid, maxssiz, and priv_check().

Referenced by kern_setrlimit(), and sysctl_kern_proc_rlimit().

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int kern_setrlimit	(	struct thread *	td,
		u_int	which,
		struct rlimit *	limp
	)

Definition at line 652 of file kern_resource.c.

References kern_proc_setrlimit().

Referenced by sys_setrlimit().

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struct plimit* lim_alloc ( )

Definition at line 1112 of file kern_resource.c.

References malloc().

Referenced by kern_proc_setrlimit(), proc0_init(), and sys_acct().

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static void lim_cb ( void * arg )

static

Definition at line 618 of file kern_resource.c.

References cpu_tickrate(), hz, kern_psignal(), killproc(), lim_rlimit(), and ruxagg().

Referenced by kern_proc_setrlimit(), and lim_fork().

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void lim_copy	(	struct plimit *	dst,
		struct plimit *	src
	)

Definition at line 1154 of file kern_resource.c.

Referenced by kern_proc_setrlimit().

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rlim_t lim_cur	(	struct proc *	p,
		int	which
	)

Definition at line 1180 of file kern_resource.c.

References lim_rlimit().

Referenced by coredump(), do_aout_hdr(), exec_aout_imgact(), fork1(), getmaxfd(), pts_alloc(), pts_alloc_external(), sbreserve_locked(), sys_getdtablesize(), and vn_rlimit_fsize().

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void lim_fork	(	struct proc *	p1,
		struct proc *	p2
	)

Definition at line 1131 of file kern_resource.c.

References hz, lim_cb(), and lim_hold().

Referenced by do_fork().

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void lim_free ( struct plimit * limp )

Definition at line 1140 of file kern_resource.c.

References free().

Referenced by acct_disable(), acct_process(), exit1(), and kern_proc_setrlimit().

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struct plimit* lim_hold ( struct plimit * limp )

Definition at line 1122 of file kern_resource.c.

Referenced by acct_process(), and lim_fork().

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rlim_t lim_max	(	struct proc *	p,
		int	which
	)

Definition at line 1167 of file kern_resource.c.

References lim_rlimit().

Referenced by copyout_map(), and kern_shmat().

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void lim_rlimit	(	struct proc *	p,
		int	which,
		struct rlimit *	rlp
	)

Definition at line 1193 of file kern_resource.c.

Referenced by lim_cb(), lim_cur(), lim_max(), note_procstat_rlimit(), sys_getrlimit(), and sysctl_kern_proc_rlimit().

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static LIST_HEAD	(	uihashhead	,
		uidinfo
	)

static

Definition at line 74 of file kern_resource.c.

static MALLOC_DEFINE	(	M_PLIMIT	,
		"plimit"	,
		"plimit structures"
	)

static

static MALLOC_DEFINE	(	M_UIDINFO	,
		"uidinfo"	,
		"uidinfo structures"
	)

static

void pri_to_rtp	(	struct thread *	td,
		struct rtprio *	rtp
	)

Definition at line 513 of file kern_resource.c.

Referenced by getscheduler(), ksched_getparam(), sys_rtprio(), and sys_rtprio_thread().

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int rtp_to_pri	(	struct rtprio *	rtp,
		struct thread *	td
	)

Definition at line 470 of file kern_resource.c.

References critical_enter(), critical_exit(), sched_class(), sched_prio(), sched_user_prio(), and umtx_pi_adjust().

Referenced by create_thread(), ksched_setscheduler(), poll_idle(), sys_rtprio(), and sys_rtprio_thread().

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void ruadd	(	struct rusage *	ru,
		struct rusage_ext *	rux,
		struct rusage *	ru2,
		struct rusage_ext *	rux2
	)

Definition at line 1028 of file kern_resource.c.

References rucollect().

Referenced by exit1(), and proc_reap().

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void rucollect	(	struct rusage *	ru,
		struct rusage *	ru2
	)

Definition at line 1014 of file kern_resource.c.

Referenced by ruadd(), rufetch(), and thread_exit().

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void rufetch	(	struct proc *	p,
		struct rusage *	ru
	)

Definition at line 1076 of file kern_resource.c.

References rucollect(), and ruxagg().

Referenced by fill_kinfo_proc_only(), get_process_cputime(), proc0_post(), and rufetchcalc().

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void rufetchcalc	(	struct proc *	p,
		struct rusage *	ru,
		struct timeval *	up,
		struct timeval *	sp
	)

Definition at line 1097 of file kern_resource.c.

References calcru(), and rufetch().

Referenced by acct_process(), kern_getrusage(), and tty_info().

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void rufetchtd	(	struct thread *	td,
		struct rusage *	ru
	)

Definition at line 857 of file kern_resource.c.

References calcru1(), cpu_ticks, and ruxagg().

Referenced by fill_kinfo_thread(), and kern_getrusage().

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void ruxagg	(	struct proc *	p,
		struct thread *	td
	)

Definition at line 1058 of file kern_resource.c.

References ruxagg_locked().

Referenced by calcru(), lim_cb(), rufetch(), rufetchtd(), and thread_exit().

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static void ruxagg_locked	(	struct rusage_ext *	rux,
		struct thread *	td
	)

static

Definition at line 1046 of file kern_resource.c.

Referenced by ruxagg().

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int sys_getpriority	(	struct thread *	td,
		struct getpriority_args *	uap
	)

Definition at line 93 of file kern_resource.c.

References allproc_lock, p_cansee(), pfind(), pgfind(), and proctree_lock.

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int sys_getrlimit	(	struct thread *	td,
		struct __getrlimit_args *	uap
	)

Definition at line 786 of file kern_resource.c.

References lim_rlimit().

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int sys_getrusage	(	struct thread *	td,
		struct getrusage_args *	uap
	)

Definition at line 965 of file kern_resource.c.

References kern_getrusage().

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int sys_rtprio	(	struct thread *	td,
		struct rtprio_args *	uap
	)

Definition at line 374 of file kern_resource.c.

References p_cansched(), p_cansee(), pfind(), pri_to_rtp(), priv_check(), rtp_to_pri(), and unprivileged_idprio.

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int sys_rtprio_thread	(	struct thread *	td,
		struct rtprio_thread_args *	uap
	)

Definition at line 292 of file kern_resource.c.

References rtprio_thread_args::function, rtprio_thread_args::lwpid, p_cansched(), p_cansee(), pri_to_rtp(), priv_check(), rtprio_thread_args::rtp, rtp_to_pri(), tdfind(), and unprivileged_idprio.

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int sys_setpriority	(	struct thread *	td,
		struct setpriority_args *	uap
	)

Definition at line 178 of file kern_resource.c.

References allproc_lock, donice(), p_cansee(), pfind(), pgfind(), setpriority_args::prio, proctree_lock, setpriority_args::which, and setpriority_args::who.

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int sys_setrlimit	(	struct thread *	td,
		struct __setrlimit_args *	uap
	)

Definition at line 604 of file kern_resource.c.

References kern_setrlimit().

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SYSCTL_INT	(	_security_bsd	,
		OID_AUTO	,
		unprivileged_idprio	,
		CTLFLAG_RW	,
		&	unprivileged_idprio,
		0	,
		"Allow non-root users to set an idle priority"
	)

void ui_racct_foreach	(	void()(struct racct racct, void arg2, void arg3)	callback,
		void *	arg2,
		void *	arg3
	)

Definition at line 1337 of file kern_resource.c.

References callback, and uihashtbl_lock.

struct uidinfo* uifind ( uid_t uid )

Definition at line 1238 of file kern_resource.c.

References free(), malloc(), mtx_init(), racct_create(), racct_destroy(), UIHASH, uihashtbl_lock, uihold(), and uilookup().

Referenced by do_execve(), proc0_init(), sys_seteuid(), sys_setresuid(), sys_setreuid(), and sys_setuid().

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void uifree ( struct uidinfo * uip )

Definition at line 1300 of file kern_resource.c.

References free(), mtx_destroy(), printf(), racct_destroy(), and uihashtbl_lock.

Referenced by change_euid(), change_ruid(), crfree(), do_execve(), sys_seteuid(), sys_setresuid(), sys_setreuid(), and sys_setuid().

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void uihashinit ( )

Definition at line 1205 of file kern_resource.c.

References hashinit(), maxproc, and uihashtbl_lock.

Referenced by procinit().

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void uihold ( struct uidinfo * uip )

Definition at line 1277 of file kern_resource.c.

Referenced by change_euid(), change_ruid(), crcopy(), and uifind().

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static struct uidinfo* uilookup ( uid_t uid )

static

Definition at line 1217 of file kern_resource.c.

References UIHASH, and uihashtbl_lock.

Referenced by uifind().

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Variable Documentation

struct rwlock uihashtbl_lock

static

Definition at line 73 of file kern_resource.c.

Referenced by ui_racct_foreach(), uifind(), uifree(), uihashinit(), and uilookup().

int unprivileged_idprio

static

Definition at line 277 of file kern_resource.c.

Referenced by sys_rtprio(), and sys_rtprio_thread().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation