Attilio Rao 6aba400a70 Fix a deficiency in the selinfo interface: ... If a selinfo object is recorded (via selrecord()) and then it is quickly destroyed, with the waiters missing the opportunity to awake, at the next iteration they will find the selinfo object destroyed, causing a PF#. That happens because the selinfo interface has no way to drain the waiters before to destroy the registered selinfo object. Also this race is quite rare to get in practice, because it would require a selrecord(), a poll request by another thread and a quick destruction of the selrecord()'ed selinfo object. Fix this by adding the seldrain() routine which should be called before to destroy the selinfo objects (in order to avoid such case), and fix the present cases where it might have already been called. Sometimes, the context is safe enough to prevent this type of race, like it happens in device drivers which installs selinfo objects on poll callbacks. There, the destruction of the selinfo object happens at driver detach time, when all the filedescriptors should be already closed, thus there cannot be a race. For this case, mfi(4) device driver can be set as an example, as it implements a full correct logic for preventing this from happening. Sponsored by: Sandvine Incorporated Reported by: rstone Tested by: pluknet Reviewed by: jhb, kib Approved by: re (bz) MFC after: 3 weeks		2011-08-25 15:51:54 +00:00
..
bus_if.m	Add a new bus method, BUS_ADJUST_RESOURCE() that is intended to be a	2011-04-29 21:36:45 +00:00
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	Update comments for DEVICE_PROBE() to reflect that BUS_PROBE_DEFAULT is	2011-05-24 13:22:40 +00:00
genassym.sh
imgact_aout.c	Do not trash the argv[0] pointer for an a.out process on amd64.	2011-06-16 22:00:59 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c	All the racct_*() calls need to happen with the proc locked. Fixing this	2011-07-06 20:06:44 +00:00
imgact_gzip.c	Add accounting for most of the memory-related resources.	2011-04-05 20:23:59 +00:00
imgact_shell.c	The execution of the shebang script requires putting interpreter path,	2011-03-06 22:59:30 +00:00
inflate.c
init_main.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
init_sysent.c	Auto-generated system call code based on r224987.	2011-08-18 23:08:52 +00:00
kern_acct.c
kern_alq.c
kern_clock.c	- Remove the eintrcnt/eintrnames usage and introduce the concept of	2011-07-18 15:19:40 +00:00
kern_clocksource.c	Set negative quality to TSC timecounter when C3 state is enabled for Intel	2011-06-22 16:40:45 +00:00
kern_condvar.c
kern_conf.c	Fix the devmtx lock leak from make_dev(9) when the old device cloning	2011-07-30 14:12:37 +00:00
kern_cons.c
kern_context.c	Clear the padding when returning context to the usermode, for	2011-02-05 15:10:27 +00:00
kern_cpu.c
kern_cpuset.c	Fix KTR_CPUMASK in order to accept a string representing a cpuset_t.	2011-05-31 20:48:58 +00:00
kern_ctf.c
kern_descrip.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
kern_dtrace.c	Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/	2011-02-25 10:11:01 +00:00
kern_environment.c	In init_dynamic_kenv(), ignore environment strings exceeding the	2011-05-23 16:40:44 +00:00
kern_et.c	sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.	2011-01-12 19:54:19 +00:00
kern_event.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
kern_exec.c	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
kern_exit.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
kern_fail.c	Add an option to have a fail point term only execute when run by a	2011-07-08 20:41:12 +00:00
kern_fork.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
kern_gzio.c
kern_hhook.c	Staticize malloc types.	2011-04-13 11:28:46 +00:00
kern_idle.c	On multi-core, multi-threaded PPC systems, it is important that the threads	2011-05-31 15:11:43 +00:00
kern_intr.c	- Remove the eintrcnt/eintrnames usage and introduce the concept of	2011-07-18 15:19:40 +00:00
kern_jail.c	Always disable mount and unmount for jails with enforce_statfs==2.	2011-08-02 19:44:40 +00:00
kern_khelp.c	Use the full and proper company name for Swinburne University of Technology	2011-04-12 08:13:18 +00:00
kern_kthread.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
kern_ktr.c	Fix KTR_CPUMASK in order to accept a string representing a cpuset_t.	2011-05-31 20:48:58 +00:00
kern_ktrace.c	Fix several places to ignore processes that are not yet fully constructed.	2011-04-06 17:47:22 +00:00
kern_linker.c	Don't leak kld_sx lock in kldunloadf().	2011-07-31 13:49:15 +00:00
kern_lock.c	Fix the LK_NOSHARE lockmgr flag interaction with LK_UPGRADE and	2011-08-01 19:07:03 +00:00
kern_lockf.c
kern_lockstat.c
kern_loginclass.c	Add racct. It's an API to keep per-process, per-jail, per-loginclass	2011-03-29 17:47:25 +00:00
kern_malloc.c	Modestly increase the maximum allowed size of the kmem map on i386.	2011-03-23 16:38:29 +00:00
kern_mbuf.c
kern_mib.c	Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which	2011-07-17 23:05:24 +00:00
kern_module.c	Style fix.	2010-11-22 15:28:54 +00:00
kern_mtxpool.c
kern_mutex.c
kern_ntptime.c	Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/	2011-02-25 10:11:01 +00:00
kern_osd.c
kern_physio.c	Account i/o done on cdevs.	2010-11-25 20:05:11 +00:00
kern_pmc.c	Commit the support for removing cpumask_t and replacing it directly with	2011-05-05 14:39:14 +00:00
kern_poll.c
kern_priv.c
kern_proc.c	One of the general principles of the sysctl(3) API is that a user can	2011-08-18 22:20:45 +00:00
kern_prot.c	Notify racct when process credentials change.	2011-03-31 18:12:04 +00:00
kern_racct.c	Rename resource names to match these in login.conf.	2011-07-14 19:18:17 +00:00
kern_rctl.c	Rename resource names to match these in login.conf.	2011-07-14 19:18:17 +00:00
kern_resource.c	- Export each thread's individual resource usage in in struct kinfo_proc's	2011-07-18 17:33:08 +00:00
kern_rmlock.c	Remove pc_cpumask and pc_other_cpus usage from MI code.	2011-06-13 13:28:31 +00:00
kern_rwlock.c
kern_sdt.c
kern_sema.c
kern_shutdown.c	remove RESTARTABLE_PANICS option	2011-07-25 09:12:48 +00:00
kern_sig.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
kern_switch.c
kern_sx.c	- Merge changes to the base system to support OFED. These include	2011-03-21 09:40:01 +00:00
kern_synch.c	Simplify a stale assertion. We have not called mi_switch() from a nested	2011-05-24 13:17:08 +00:00
kern_syscalls.c
kern_sysctl.c	Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which	2011-07-17 23:05:24 +00:00
kern_tc.c	If TSC stops ticking in C3, disable deep sleep when the user forcefully	2011-07-14 21:00:26 +00:00
kern_thr.c	All the racct_*() calls need to happen with the proc locked. Fixing this	2011-07-06 20:06:44 +00:00
kern_thread.c	Fix some locking nits with the p_state field of struct proc:	2011-03-24 18:40:11 +00:00
kern_time.c
kern_timeout.c	callout_cpu_switch() allows preemption when dropping the outcoming	2011-08-21 10:52:50 +00:00
kern_umtx.c	Expose the umtx_key structure and API to the rest of the kernel.	2011-02-23 13:19:14 +00:00
kern_uuid.c
kern_xxx.c
ksched.c	Use p4prio_to_tsprio to calculate TS priority instead of using	2011-06-07 02:50:14 +00:00
link_elf_obj.c	Remove malloc(9) return value checks when M_WAITOK is used.	2011-04-16 16:20:51 +00:00
link_elf.c	Even if the loaded module has no symbols, we still need to notify	2011-06-16 17:41:21 +00:00
linker_if.m
Make.tags.inc	Update tags build script	2011-07-10 00:53:04 +00:00
Makefile	Continue to introduce Capsicum Capability Mode support:	2011-03-01 13:28:27 +00:00
makesyscalls.sh	add DTrace systrace support for linux32 and freebsd32 on amd64 syscalls	2011-03-12 08:51:43 +00:00
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c	Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which	2011-07-17 23:05:24 +00:00
sched_4bsd.c	Remove pc_cpumask and pc_other_cpus usage from MI code.	2011-06-13 13:28:31 +00:00
sched_ule.c	Remove explicit MAXCPU usage from sys/pcpu.h avoiding a namespace	2011-07-19 16:50:55 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c	Make UFS use PSARC/2010/029 NFSv4 ACL semantics by default, bringing	2011-03-22 19:52:29 +00:00
subr_acl_posix1e.c
subr_autoconf.c	Retire PCONFIG and leave the priority of thread0 alone when waiting for	2011-01-06 22:09:37 +00:00
subr_blist.c
subr_bufring.c
subr_bus.c	Add a new bus method, BUS_ADJUST_RESOURCE() that is intended to be a	2011-04-29 21:36:45 +00:00
subr_clock.c	Improve style and wording of comments and sysctl descriptions [1].	2011-01-09 14:34:56 +00:00
subr_devstat.c	Instead of using an atomic operation to determine whether the devstat(9)	2011-06-13 22:08:24 +00:00
subr_disk.c
subr_eventhandler.c
subr_fattime.c
subr_firmware.c
subr_hash.c
subr_hints.c
subr_kdb.c	Fix a mismerge.	2011-06-27 13:02:23 +00:00
subr_kobj.c	sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.	2011-01-12 19:54:19 +00:00
subr_lock.c	Explicitly wire the user buffer rather than doing it implicitly in	2011-01-27 00:34:12 +00:00
subr_log.c	Finish r210923, 210926. Mark some devices as eternal.	2011-01-04 10:59:38 +00:00
subr_mbpool.c
subr_mchain.c	Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/	2011-02-25 10:11:01 +00:00
subr_module.c	Provide convenience function for obtaining MODINFO_ADDR and MODINFO_SIZE	2011-02-09 19:08:21 +00:00
subr_msgbuf.c	Fix a bug introduced in revision 222537.	2011-05-31 22:39:32 +00:00
subr_param.c	Modestly increase the maximum allowed size of the kmem map on i386.	2011-03-23 16:38:29 +00:00
subr_pcpu.c	Remove pc_name member of struct pcpu.	2011-07-19 14:57:59 +00:00
subr_power.c
subr_prf.c	Set pca.p_bufr to NULL when we haven't allocated a buffer.	2011-06-07 05:04:37 +00:00
subr_prof.c
subr_rman.c	Clear the device_t pointer in 'struct resource' when releasing a device	2011-06-06 13:12:56 +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	Explicitly wire the user buffer rather than doing it implicitly in	2011-01-27 00:34:12 +00:00
subr_smp.c	smp_rendezvous: master cpu should wait until all slaves are fully done	2011-07-30 20:29:39 +00:00
subr_stack.c	Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/	2011-02-25 10:11:01 +00:00
subr_taskqueue.c	Implement the delayed task execution extension to the taskqueue	2011-04-26 11:39:56 +00:00
subr_trap.c	We may split today's CAPABILITIES into CAPABILITY_MODE (which has	2011-06-29 13:03:05 +00:00
subr_turnstile.c	Always assert that the turnstile chain lock is held in turnstile_wait()	2011-02-04 14:16:41 +00:00
subr_uio.c	Add a facility to disable processing page faults. When activated,	2011-07-09 15:21:10 +00:00
subr_unit.c	Fix typos - remove duplicate "the".	2011-02-21 09:01:34 +00:00
subr_witness.c	Fix typos - remove duplicate "the".	2011-02-21 09:01:34 +00:00
sys_capability.c	Add the fo_chown and fo_chmod methods to struct fileops and use them	2011-08-16 20:07:47 +00:00
sys_generic.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
sys_pipe.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
sys_procdesc.c	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
sys_process.c	Add comment from CSRG rev 7.27 (1992/06/23 19:56:55; author: mckusick)	2011-06-17 21:44:13 +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	Auto-generated system call code based on r224987.	2011-08-18 23:08:52 +00:00
syscalls.master	Add experimental support for process descriptors	2011-08-18 22:51:30 +00:00
systrace_args.c	Auto-generated system call code based on r224987.	2011-08-18 23:08:52 +00:00
sysv_ipc.c
sysv_msg.c	All the racct_*() calls need to happen with the proc locked. Fixing this	2011-07-06 20:06:44 +00:00
sysv_sem.c	Remove semaphore map entry count "semmap" field and its tuning	2011-07-14 14:18:14 +00:00
sysv_shm.c	All the racct_*() calls need to happen with the proc locked. Fixing this	2011-07-06 20:06:44 +00:00
tty_compat.c
tty_info.c
tty_inq.c	Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.	2011-06-26 18:26:20 +00:00
tty_outq.c	Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.	2011-06-26 18:26:20 +00:00
tty_pts.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
tty_tty.c	Finish r210923, 210926. Mark some devices as eternal.	2011-01-04 10:59:38 +00:00
tty_ttydisc.c	Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.	2011-06-26 18:26:20 +00:00
tty.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
uipc_accf.c
uipc_cow.c	Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/	2011-02-25 10:11:01 +00:00
uipc_debug.c
uipc_domain.c
uipc_mbuf2.c
uipc_mbuf.c	Fix typos - remove duplicate "the".	2011-02-21 09:01:34 +00:00
uipc_mqueue.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
uipc_sem.c	Fix build breakage. Initialize error variables explicitely for !MAC case.	2011-08-17 12:37:14 +00:00
uipc_shm.c	Fix build breakage. Initialize error variables explicitely for !MAC case.	2011-08-17 12:37:14 +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	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
uipc_usrreq.c	Prevent the hiwatermark for the unix domain socket from becoming	2011-08-20 16:12:29 +00:00
vfs_acl.c	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
vfs_aio.c	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
vfs_bio.c	Call pmap_qremove() before freeing or unwiring the pages, otherwise	2011-07-05 18:40:37 +00:00
vfs_cache.c
vfs_cluster.c	The hardware has caught up; improvements are now observed even at 128,	2011-03-16 16:22:59 +00:00
vfs_default.c	Add a lock flags argument to the VFS_FHTOVP() file system	2011-05-22 01:07:54 +00:00
vfs_export.c
vfs_extattr.c	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
vfs_hash.c
vfs_init.c
vfs_lookup.c	Allow Capsicum capabilities to delegate constrained	2011-08-13 09:21:16 +00:00
vfs_mount.c	Revert r224655 and r224614 because vn_fullpath* does not always work	2011-08-08 14:02:08 +00:00
vfs_mountroot.c	Include sys/sbuf.h directly.	2011-07-11 05:17:46 +00:00
vfs_subr.c	Fix a deficiency in the selinfo interface:	2011-08-25 15:51:54 +00:00
vfs_syscalls.c	Add the fo_chown and fo_chmod methods to struct fileops and use them	2011-08-16 20:07:47 +00:00
vfs_vnops.c	Generalize ffs_pages_remove() into vn_pages_remove().	2011-08-25 08:17:39 +00:00
vnode_if.src	Correctly use INOUT for the offset/len parameters to vop_allocate. As	2011-05-13 14:29:28 +00:00