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freebsd-dev/sys/kern
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Bill Paul 0b788fa1da Add support to sendmsg()/recvmsg() for passing credentials between 
processes using AF_LOCAL sockets. This hack is going to be used with
Secure RPC to duplicate a feature of STREAMS which has no real counterpart
in sockets (with STREAMS/TLI, you can apparently use t_getinfo() to learn
UID of a local process on the other side of a transport endpoint).

What happens is this: the client sets up a sendmsg() call with ancillary
data using the SCM_CREDS socket-level control message type. It does not
need to fill in the structure. When the kernel notices the data,
unp_internalize() fills in the cmesgcred structure with the sending
process' credentials (UID, EUID, GID, and ancillary groups). This data
is later delivered to the receiving process. The receiver can then
perform the follwing tests:

- Did the client send ancillary data?
	o Yes, proceed.
	o No, refuse to authenticate the client.

- The the client send data of type SCM_CREDS?
	o Yes, proceed.
	o No, refuse to authenticate the client.

- Is the cmsgcred structure the right size?
	o Yes, proceed.
	o No, signal a possible error.

The receiver can now inspect the credential information and use it to
authenticate the client.
1997-03-21 16:12:32 +00:00
..
imgact_aout.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
imgact_elf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
imgact_gzip.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
imgact_shell.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
inflate.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
init_main.c Include copyright message from <sys/copyright.h> 1997-03-01 17:49:09 +00:00
init_sysent.c Regenerate to include correct Id string 1997-02-22 12:52:35 +00:00
init_sysvec.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_acct.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_clock.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_conf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_descrip.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_exec.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_exit.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_fork.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_ktrace.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_lkm.c Fixed loading of vfs's. The Lite2 merge added unnecessary compatibility 1997-02-27 16:40:20 +00:00
kern_lockf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_malloc.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_mib.c Attach vfs_sysctl() one level lower so that only the levels below 1997-03-04 18:31:56 +00:00
kern_ntptime.c Update our kernel ntp code to the latest from David Mills. The main change 1996-12-30 18:26:28 +00:00
kern_opt.c Added a copyright and restored order. 1997-02-28 10:14:24 +00:00
kern_physio.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_proc.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_prot.c Oops, fix typo. 1997-03-03 23:02:43 +00:00
kern_random.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_resource.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_shutdown.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_sig.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_subr.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_synch.c Wrapped mi_switch() with splstatclock()/splx(). This fixes excessive 1997-02-27 18:03:48 +00:00
kern_sysctl.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_tc.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_time.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_timeout.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
kern_xxx.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
Make.tags.inc Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
Makefile Remove bogus architectures to allow make tags to work. 1996-03-31 18:53:43 +00:00
makesyscalls.sh Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
md5c.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_autoconf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_clist.c Try a no-wait malloc first in clist_alloc_cblocks(). If this fails, then 1997-03-05 16:45:01 +00:00
subr_disklabel.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_diskmbr.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_diskslice.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_dkbad.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_log.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_param.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_prf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_prof.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_rlist.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_trap.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
subr_xxx.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sys_generic.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sys_pipe.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sys_process.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sys_socket.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
syscalls.c Regenerate to include correct Id string 1997-02-22 12:52:35 +00:00
syscalls.master Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sysv_ipc.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sysv_msg.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sysv_sem.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
sysv_shm.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty_compat.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty_conf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty_cons.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty_pty.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty_snoop.c Fixed null pointer panic in devtotty(). Fixed bounds checking in 1997-03-16 19:11:40 +00:00
tty_subr.c Try a no-wait malloc first in clist_alloc_cblocks(). If this fails, then 1997-03-05 16:45:01 +00:00
tty_tb.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty_tty.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
tty.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
uipc_domain.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
uipc_mbuf.c Create a new branch of the kernel MIB, kern.ipc, to store 1997-02-24 20:30:58 +00:00
uipc_proto.c Create a new branch of the kernel MIB, kern.ipc, to store 1997-02-24 20:30:58 +00:00
uipc_sockbuf.c Create a new branch of the kernel MIB, kern.ipc, to store 1997-02-24 20:30:58 +00:00
uipc_socket2.c Create a new branch of the kernel MIB, kern.ipc, to store 1997-02-24 20:30:58 +00:00
uipc_socket.c Create a new branch of the kernel MIB, kern.ipc, to store 1997-02-24 20:30:58 +00:00
uipc_syscalls.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
uipc_usrreq.c Add support to sendmsg()/recvmsg() for passing credentials between 1997-03-21 16:12:32 +00:00
vfs_bio.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
vfs_cache.c Fixed the hash formula. Lite2 doesn't have phashinit(), so Lite2's hash 1997-03-08 15:22:14 +00:00
vfs_cluster.c Remove unnecessary check for vp->v_mount being null. Pointed 1997-03-07 14:40:54 +00:00
vfs_conf.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
vfs_export.c Fixed splbio problems in vinvalbuf. Closes PR#2875, although fixed 1997-03-05 04:54:54 +00:00
vfs_extattr.c Check that vp->v_mount is non-null in fsync() before dereferencing it to 1997-03-05 01:42:14 +00:00
vfs_init.c Moved vfs sysctls to where Lite2 put them. No code changes yet. 1997-03-02 11:06:22 +00:00
vfs_lookup.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
vfs_mount.c Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
vfs_subr.c Fixed splbio problems in vinvalbuf. Closes PR#2875, although fixed 1997-03-05 04:54:54 +00:00
vfs_syscalls.c Check that vp->v_mount is non-null in fsync() before dereferencing it to 1997-03-05 01:42:14 +00:00
vfs_vnops.c Fix style bugs and other bugs in the NFS fix. 1997-03-08 15:14:30 +00:00
vnode_if.pl Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
vnode_if.sh Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
vnode_if.src This is the kernel Lite/2 commit. There are some requisite userland 1997-02-10 02:22:35 +00:00