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b1fc0ec1a7
freebsd-skq/sys/kern
History
Robert Watson b1fc0ec1a7 o Merge contents of struct pcred into struct ucred. Specifically, add the 
real uid, saved uid, real gid, and saved gid to ucred, as well as the
  pcred->pc_uidinfo, which was associated with the real uid, only rename
  it to cr_ruidinfo so as not to conflict with cr_uidinfo, which
  corresponds to the effective uid.
o Remove p_cred from struct proc; add p_ucred to struct proc, replacing
  original macro that pointed.
  p->p_ucred to p->p_cred->pc_ucred.
o Universally update code so that it makes use of ucred instead of pcred,
  p->p_ucred instead of p->p_pcred, cr_ruidinfo instead of p_uidinfo,
  cr_{r,sv}{u,g}id instead of p_*, etc.
o Remove pcred0 and its initialization from init_main.c; initialize
  cr_ruidinfo there.
o Restruction many credential modification chunks to always crdup while
  we figure out locking and optimizations; generally speaking, this
  means moving to a structure like this:
        newcred = crdup(oldcred);
        ...
        p->p_ucred = newcred;
        crfree(oldcred);
  It's not race-free, but better than nothing.  There are also races
  in sys_process.c, all inter-process authorization, fork, exec, and
  exit.
o Remove sigio->sio_ruid since sigio->sio_ucred now contains the ruid;
  remove comments indicating that the old arrangement was a problem.
o Restructure exec1() a little to use newcred/oldcred arrangement, and
  use improved uid management primitives.
o Clean up exit1() so as to do less work in credential cleanup due to
  pcred removal.
o Clean up fork1() so as to do less work in credential cleanup and
  allocation.
o Clean up ktrcanset() to take into account changes, and move to using
  suser_xxx() instead of performing a direct uid==0 comparision.
o Improve commenting in various kern_prot.c credential modification
  calls to better document current behavior.  In a couple of places,
  current behavior is a little questionable and we need to check
  POSIX.1 to make sure it's "right".  More commenting work still
  remains to be done.
o Update credential management calls, such as crfree(), to take into
  account new ruidinfo reference.
o Modify or add the following uid and gid helper routines:
      change_euid()
      change_egid()
      change_ruid()
      change_rgid()
      change_svuid()
      change_svgid()
  In each case, the call now acts on a credential not a process, and as
  such no longer requires more complicated process locking/etc.  They
  now assume the caller will do any necessary allocation of an
  exclusive credential reference.  Each is commented to document its
  reference requirements.
o CANSIGIO() is simplified to require only credentials, not processes
  and pcreds.
o Remove lots of (p_pcred==NULL) checks.
o Add an XXX to authorization code in nfs_lock.c, since it's
  questionable, and needs to be considered carefully.
o Simplify posix4 authorization code to require only credentials, not
  processes and pcreds.  Note that this authorization, as well as
  CANSIGIO(), needs to be updated to use the p_cansignal() and
  p_cansched() centralized authorization routines, as they currently
  do not take into account some desirable restrictions that are handled
  by the centralized routines, as well as being inconsistent with other
  similar authorization instances.
o Update libkvm to take these changes into account.

Obtained from:	TrustedBSD Project
Reviewed by:	green, bde, jhb, freebsd-arch, freebsd-audit
2001-05-25 16:59:11 +00:00
..
bus_if.m Alter the return value and arguments of the GET_RESOURCE_LIST bus method. 2000-11-28 06:49:15 +00:00
device_if.m * Factor out the object system from new-bus so that it can be used by 2000-04-08 14:17:18 +00:00
genassym.sh Improve kernel bootstrapping: 2001-01-28 06:39:56 +00:00
gensetdefs.pl Generate useful error messages. 2001-04-13 09:37:25 +00:00
imgact_aout.c Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
imgact_elf.c Lock the VM while twiddling the vmspace. 2001-05-23 22:05:08 +00:00
imgact_gzip.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
imgact_shell.c Fix #! script exec under linux emulation. If a script is exec'd from a 2000-04-26 20:58:40 +00:00
inflate.c Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
init_main.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
init_sysent.c Regen syscalls that were made mpsafe via vm_mtx 2001-05-19 01:37:12 +00:00
kern_acct.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_acl.c o As part of the move to not maintaining copies of the vnode owning uid 2001-04-29 19:53:50 +00:00
kern_cap.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
kern_clock.c Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +00:00
kern_condvar.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_conf.c Call strlen() once instead of twice. 2001-04-14 21:33:58 +00:00
kern_descrip.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_environment.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_event.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_exec.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_exit.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_fork.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_idle.c - Split out the support for per-CPU data from the SMP code. UP kernels 2001-05-10 17:45:49 +00:00
kern_intr.c - Remove the global ithread_list_lock spin lock in favor of per-ithread 2001-05-17 22:43:26 +00:00
kern_jail.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
kern_kthread.c Convert the allproc and proctree locks from lockmgr locks to sx locks. 2001-03-28 11:52:56 +00:00
kern_ktr.c Switch from save/disable/restore_intr() to critical_enter/exit(). 2001-03-28 03:06:10 +00:00
kern_ktrace.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_linker.c o Actually extract version of interface and store it along with the name. 2001-03-22 08:58:45 +00:00
kern_lock.c Instead of asserting that a mutex is not still locked after unlocking it, 2001-04-28 12:11:01 +00:00
kern_lockf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_malloc.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_mib.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_module.c Mechanical change to use <sys/queue.h> macro API instead of 2001-02-04 13:13:25 +00:00
kern_mutex.c - Move state about lock objects out of struct lock_object and into a new 2001-05-04 17:15:16 +00:00
kern_ntptime.c Update to the 2001-04-02 version of the nanokernel code from Dave Mills. 2001-04-16 13:05:05 +00:00
kern_physio.c Separate the struct bio related stuff out of <sys/buf.h> into 2000-05-05 09:59:14 +00:00
kern_proc.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_prot.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_random.c This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
kern_resource.c Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
kern_shutdown.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
kern_sig.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
kern_subr.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_switch.c Catch up to header include changes: 2001-03-28 09:17:56 +00:00
kern_sx.c - Move state about lock objects out of struct lock_object and into a new 2001-05-04 17:15:16 +00:00
kern_synch.c Add in assertions to ensure that we always call msleep or mawait with 2001-05-23 19:38:26 +00:00
kern_syscalls.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
kern_sysctl.c Add convenience function kernel_sysctlbyname() for kernel consumers, 2001-05-19 05:45:55 +00:00
kern_tc.c Remove a bogus #ifdef KTR stanza. 2001-01-01 23:09:53 +00:00
kern_time.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_timeout.c Catch up to header include changes: 2001-03-28 09:17:56 +00:00
kern_xxx.c This is kind of a hack, but it should work. Currently, world is broken 2001-03-24 04:40:49 +00:00
ksched.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
link_aout.c Manually add an extra _ to _DYNAMIC since it is provided by ld, not gcc. 2001-02-25 07:25:05 +00:00
link_elf_obj.c Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
link_elf.c Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
linker_if.m First round implementation of a fine grain enhanced module to module 2000-04-29 13:19:31 +00:00
Make.tags.inc - sys/msdosfs moved to sys/fs/msdosfs 2001-05-25 08:14:14 +00:00
Makefile - FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file 2001-05-23 09:42:29 +00:00
makeobjops.pl Use getopt instead of a home grown one 2001-04-07 20:51:24 +00:00
makesyscalls.sh Add reserved lkmressys keyword. I swear, this script will die the 2000-12-01 08:47:54 +00:00
md4c.c Import kernel part of SMB/CIFS requester. 2001-04-10 07:59:06 +00:00
md5c.c Add ia64 support. 2000-09-29 13:36:47 +00:00
p1003_1b.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
posix4_mib.c Add $FreeBSD$. 2000-04-22 15:13:06 +00:00
subr_acl_posix1e.c o As part of the move to not maintaining copies of the vnode owning uid 2001-04-29 19:53:50 +00:00
subr_autoconf.c Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
subr_blist.c Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
subr_bus.c Unset the devclass if the attach fails and the devclass was not set to 2001-01-08 22:16:26 +00:00
subr_clist.c Make cblock_alloc_cblocks() spell its own name 2001-03-27 10:21:26 +00:00
subr_devstat.c Another round of the <sys/queue.h> FOREACH transmogriffer. 2001-02-04 16:08:18 +00:00
subr_disk.c Don't take the detour around devsw() to find out if the proto-cdevsw 2001-05-24 20:27:16 +00:00
subr_disklabel.c Use the name given to the dev_t, rather than creating our own. 2001-05-25 09:06:52 +00:00
subr_diskmbr.c Make diskerr() always log with printf. 2000-11-26 19:29:15 +00:00
subr_diskslice.c Don't rely on cdevsw_add() when we hack about with dev_t's. 2001-05-24 20:28:06 +00:00
subr_eventhandler.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
subr_kobj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_log.c syslogd gets kernel log messages only once every 30 seconds or 2001-05-23 19:02:50 +00:00
subr_mchain.c Remove superfluous m_pkthdr.rcv_if = NULL assignment following 2001-02-25 06:33:50 +00:00
subr_module.c Preceed/preceeding are not english words. Use precede and preceding. 2001-02-18 10:43:53 +00:00
subr_param.c Remove unneeded <stddef.h> #includes. 2000-10-29 16:57:42 +00:00
subr_pcpu.c - Split out the support for per-CPU data from the SMP code. UP kernels 2001-05-10 17:45:49 +00:00
subr_prf.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
subr_prof.c Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +00:00
subr_rman.c Change and clean the mutex lock interface. 2001-02-09 06:11:45 +00:00
subr_sbuf.c Rewrite of the CAM error recovery code. 2001-03-27 05:45:52 +00:00
subr_scanf.c Change the prototype of the strto* routines to make the second 1999-11-24 01:03:08 +00:00
subr_smp.c - Split out the support for per-CPU data from the SMP code. UP kernels 2001-05-10 17:45:49 +00:00
subr_taskqueue.c remove include of ipl.h because it no longer exists 2001-05-16 02:52:06 +00:00
subr_trap.c Don't acquire Giant just to call trap_fatal(), we are about to panic 2001-05-23 22:58:09 +00:00
subr_turnstile.c - Move state about lock objects out of struct lock_object and into a new 2001-05-04 17:15:16 +00:00
subr_witness.c - Don't panic on a try lock operation for a sleep lock if we hold a spin 2001-05-17 22:44:56 +00:00
subr_xxx.c Extend kqueue down to the device layer. 2001-02-15 16:34:11 +00:00
sys_generic.c Back out scanning file descriptors with holding a process lock. 2001-05-15 10:19:57 +00:00
sys_pipe.c whitespace/style 2001-05-24 18:06:22 +00:00
sys_process.c - FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file 2001-05-23 09:42:29 +00:00
sys_socket.c Extend kqueue down to the device layer. 2001-02-15 16:34:11 +00:00
syscalls.c Regen syscalls that were made mpsafe via vm_mtx 2001-05-19 01:37:12 +00:00
syscalls.master Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
sysv_ipc.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
sysv_msg.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
sysv_sem.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
sysv_shm.c Correct style bugs with regards to long lines and comments. 2001-05-23 23:38:05 +00:00
tty_compat.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
tty_conf.c Don't refer to TABLDISC in the comments here. 2000-01-30 10:14:13 +00:00
tty_cons.c Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
tty_pty.c Make the PTY drivers cloning algorithm create "CHEAPCLONE" dev_t, 2001-05-25 13:23:42 +00:00
tty_snoop.c Convert this driver to (ab?)use line disciplines to get the input it 2001-05-22 22:13:14 +00:00
tty_subr.c Make cblock_alloc_cblocks() spell its own name 2001-03-27 10:21:26 +00:00
tty_tty.c Support /dev/ctty again 2001-05-15 18:12:38 +00:00
tty.c Unifdef DEV_SNP; snp(4) no longer requires these ugly hacks. 2001-05-22 22:16:18 +00:00
uipc_accf.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
uipc_domain.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
uipc_mbuf2.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_mbuf.c Increment mbstat.m_mpfail, not mbstat.m_mcfail, when m_pullup() fails. 2001-05-23 20:44:54 +00:00
uipc_proto.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
uipc_sockbuf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_socket2.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_socket.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_syscalls.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_usrreq.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
vfs_acl.c o As part of the move to not maintaining copies of the vnode owning uid 2001-04-29 19:53:50 +00:00
vfs_aio.c Check validity of signal callback requested via aio routines. 2001-04-18 22:18:39 +00:00
vfs_bio.c This patch implements O_DIRECT about 80% of the way. It takes a patchset 2001-05-24 07:22:27 +00:00
vfs_cache.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_cluster.c This patch implements O_DIRECT about 80% of the way. It takes a patchset 2001-05-24 07:22:27 +00:00
vfs_conf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_default.c Don't release the vm lock just to turn around and grab it again. 2001-05-23 19:51:12 +00:00
vfs_export.c vfs_subr.c is getting rather fat. The underlying repocopy and this 2001-04-26 20:47:14 +00:00
vfs_extattr.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
vfs_init.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
vfs_lookup.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_mount.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_subr.c Introduce a global lock for the vm subsystem (vm_mtx). 2001-05-19 01:28:09 +00:00
vfs_syscalls.c o Merge contents of struct pcred into struct ucred. Specifically, add the 2001-05-25 16:59:11 +00:00
vfs_vnops.c This patch implements O_DIRECT about 80% of the way. It takes a patchset 2001-05-24 07:22:27 +00:00
vnode_if.pl replace calls to non-existant bail() subroutine with calls to 2001-03-23 11:48:50 +00:00
vnode_if.src VOP_BALLOC was never really a VOP in the first place, so convert it 2001-04-29 12:36:52 +00:00