kib ca682488f3 To limit amount of the kernel memory allocated, and to optimize the ...

iteration over the fdsets, kern_select() limits the length of the
fdsets copied in by the last valid file descriptor index. If any bit
is set in a mask above the limit, current implementation ignores the
filedescriptor, instead of returning EBADF.

Fix the issue by scanning the tails of fdset before entering the
select loop and returning EBADF if any bit above last valid
filedescriptor index is set. The performance impact of the additional
check is only imposed on the (somewhat) buggy applications that pass
bad file descriptors to select(2) or pselect(2).

PR:	kern/155606, kern/162379
Discussed with:	cognet, glebius
Tested by:	andreast (powerpc, all 64/32bit ABI combinations, big-endian),
       marius (sparc64, big-endian)
MFC after:    2 weeks

2011-11-13 10:28:01 +00:00

..

bus_if.m

…

capabilities.conf

Add experimental support for process descriptors

2011-08-18 22:51:30 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

…

genassym.sh

…

imgact_aout.c

…

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Control the execution permission of the readable segments for

2011-10-15 12:35:18 +00:00

imgact_gzip.c

…

imgact_shell.c

…

inflate.c

…

init_main.c

Remove the long reprecated ``/stand/sysinstall'' from the init_path.

2011-10-27 10:25:11 +00:00

init_sysent.c

Regen.

2011-11-04 04:06:31 +00:00

kern_acct.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_alq.c

…

kern_clock.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_clocksource.c

…

kern_condvar.c

…

kern_conf.c

Style.

2011-11-11 04:13:47 +00:00

kern_cons.c

…

kern_context.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_cpu.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_cpuset.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_ctf.c

The in-kernel CTF parser caches the result of its first attempt to parse

2011-11-08 15:17:54 +00:00

kern_descrip.c

Move the cleanup of f_cdevpriv when the reference count of a devfs

2011-11-04 03:39:31 +00:00

kern_dtrace.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_environment.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_et.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_event.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_exec.c

Do not deliver SIGTRAP on exec as the normal signal, use ptracestop() on

2011-09-27 13:17:02 +00:00

kern_exit.c

Fix long-standing thinko regarding maxproc accounting. Basically,

2011-09-17 19:55:32 +00:00

kern_fail.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_fork.c

Move some code inside the racct_proc_fork(); it spares a few lock operations

2011-10-03 17:40:55 +00:00

kern_gzio.c

…

kern_hhook.c

…

kern_idle.c

…

kern_intr.c

…

kern_jail.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_khelp.c

…

kern_kthread.c

Add experimental support for process descriptors

2011-08-18 22:51:30 +00:00

kern_ktr.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_ktrace.c

Revisit the capability failure trace points. The initial implementation

2011-10-18 07:28:58 +00:00

kern_linker.c

Add KLD_DEBUG option.

2011-11-06 08:10:41 +00:00

kern_lock.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_lockf.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_lockstat.c

…

kern_loginclass.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_malloc.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_mbuf.c

…

kern_mib.c

…

kern_module.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_mtxpool.c

…

kern_mutex.c

…

kern_ntptime.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_osd.c

…

kern_physio.c

…

kern_pmc.c

…

kern_poll.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_priv.c

…

kern_proc.c

Add KVME_FLAG_SUPER and use it in sysctl_kern_proc_vmmap for marking

2011-11-07 21:13:19 +00:00

kern_prot.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_racct.c

Actually enforce limit for inheritable resources on fork.

2011-10-04 14:56:33 +00:00

kern_rctl.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_resource.c

In lim_fork() assert that processes locks are held.

2011-11-07 21:09:04 +00:00

kern_rmlock.c

…

kern_rwlock.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_sdt.c

…

kern_sema.c

…

kern_shutdown.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_sig.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_switch.c

…

kern_sx.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_synch.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_syscalls.c

…

kern_sysctl.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_tc.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_thr.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_thread.c

…

kern_time.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_timeout.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_umtx.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_uuid.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_xxx.c

…

ksched.c

…

link_elf_obj.c

…

link_elf.c

…

linker_if.m

…

Make.tags.inc

…

Makefile

…

makesyscalls.sh

Correct the types of the arguments to return probes of the syscall

2011-11-11 03:49:42 +00:00

md4c.c

…

md5c.c

…

p1003_1b.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

posix4_mib.c

…

sched_4bsd.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

sched_ule.c

- Currently, sched_balance_pair() may cause a CPU to send an IPI_PREEMPT to

2011-10-06 11:48:13 +00:00

serdev_if.m

…

stack_protector.c

…

subr_acl_nfs4.c

Remove assertion against empty NFSv4 ACLs. An empty ACL is not exactly

2011-10-05 17:29:49 +00:00

subr_acl_posix1e.c

…

subr_autoconf.c

…

subr_blist.c

…

subr_bufring.c

…

subr_bus.c

In device_get_children() avoid malloc(0) in order to increase portability

2011-10-09 21:21:37 +00:00

subr_clock.c

…

subr_devstat.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_disk.c

…

subr_eventhandler.c

…

subr_fattime.c

…

subr_firmware.c

…

subr_hash.c

…

subr_hints.c

…

subr_kdb.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_kobj.c

Simplify the code emitted by makeobjops.awk slightly.

2011-11-09 11:00:29 +00:00

subr_lock.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_log.c

…

subr_mbpool.c

…

subr_mchain.c

…

subr_module.c

…

subr_msgbuf.c

…

subr_param.c

…

subr_pcpu.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

subr_power.c

…

subr_prf.c

Fix double vision syndrome (read: double output) when in the

2011-10-16 14:16:46 +00:00

subr_prof.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_rman.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_rtc.c

…

subr_sbuf.c

r222015 introduced a new assertion that the size of a fixed-length sbuf

2011-08-19 08:29:10 +00:00

subr_scanf.c

…

subr_sglist.c

…

subr_sleepqueue.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_smp.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_stack.c

…

subr_syscall.c

Revert rev. 226893: subr_syscall.c is being included from C files and

2011-10-30 02:19:39 +00:00

subr_taskqueue.c

Ensure that ta_pending doesn't overflow u_short by capping its value at USHRT_MAX.

2011-09-15 08:42:06 +00:00

subr_trap.c

Assert that exiting process does not return to usermode.

2011-10-03 16:58:58 +00:00

subr_turnstile.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_uio.c

…

subr_unit.c

…

subr_witness.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

sys_capability.c

Revisit the capability failure trace points. The initial implementation

2011-10-18 07:28:58 +00:00

sys_generic.c

To limit amount of the kernel memory allocated, and to optimize the

2011-11-13 10:28:01 +00:00

sys_pipe.c

Supply unique (st_dev, st_ino) value pair for the fstat(2) done on the pipes.

2011-10-05 16:56:06 +00:00

sys_procdesc.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sys_process.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sys_socket.c

Add the fo_chown and fo_chmod methods to struct fileops and use them

2011-08-16 20:07:47 +00:00

syscalls.c

Regen.

2011-11-04 04:06:31 +00:00

syscalls.master

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00

systrace_args.c

Correct the types of the arguments to return probes of the syscall

2011-11-11 03:49:42 +00:00

sysv_ipc.c

…

sysv_msg.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sysv_sem.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sysv_shm.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

tty_compat.c

…

tty_info.c

…

tty_inq.c

…

tty_outq.c

…

tty_pts.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

tty_tty.c

…

tty_ttydisc.c

…

tty.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_accf.c

…

uipc_cow.c

…

uipc_debug.c

…

uipc_domain.c

…

uipc_mbuf2.c

…

uipc_mbuf.c

…

uipc_mqueue.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

uipc_sem.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_shm.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_sockbuf.c

Increase the defaults for the maximum socket buffer limit,

2011-08-25 09:20:13 +00:00

uipc_socket.c

Fix a deficiency in the selinfo interface:

2011-08-25 15:51:54 +00:00

uipc_syscalls.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_usrreq.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

vfs_acl.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_aio.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_bio.c

Eliminate vestiges of page coloring in VM_ALLOC_NOOBJ calls to

2011-10-27 16:39:17 +00:00

vfs_cache.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

vfs_cluster.c

…

vfs_default.c

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00

vfs_export.c

…

vfs_extattr.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_hash.c

…

vfs_init.c

Modify vfs_register() to use a hash calculation

2011-09-13 21:01:26 +00:00

vfs_lookup.c

Revisit the capability failure trace points. The initial implementation

2011-10-18 07:28:58 +00:00

vfs_mount.c

Introduce the option VFS_ALLOW_NONMPSAFE and turn it on by default on

2011-11-08 10:18:07 +00:00

vfs_mountroot.c

Don't terminate the interactive root mount prompt on mount failure.

2011-10-23 20:03:33 +00:00

vfs_subr.c

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00

vfs_syscalls.c

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00

vfs_vnops.c

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00

vnode_if.src

Add the posix_fadvise(2) system call. It is somewhat similar to

2011-11-04 04:02:50 +00:00