2005-08-26 Kevin Coffman <kwc@citi.umich.edu>

	* utils/exportfs/exports.man: Document the "crossmnt" export export option
	* utils/gssd/krb5_util.c:
	Add better debugging and partially revert the function
	check for gss_krb5_ccache_name.

	For MIT Kerberos releases up to and including 1.3.1, we *must*
	use the routine gss_krb5_ccache_name to get the K5 gssapi code
	to use a different credentials cache.

	For releases 1.3.2 and on, we want to use the KRB5CCNAME
	environment variable to tell it what to use.
	(A problem was reported where 1.3.5 was being used, our
	code was using gss_krb5_ccache_name, but the underlying
	code continued to use the first (or default?) credentials
	cache.  Switching to using the env variable fixed the problem.
	I cannot recreate this problem.

	*utils/gssd/krb5_util.c:
	Andrew Mahone <andrew.mahone@gmail.com> reported that reiser4
	always has DT_UNKNOWN.  He supplied patch to move the check
	for regular files after the stat() call to correctly find
	ccache files in reiser4 filesystem.

	Also change the name comparison so that the wrong file is
	not selected when the substring comparison is done.

	*utils/gssd/krb5_util.c:
	Limit the set of encryption types that can be negotiated by
	the Kerberos library to those that the kernel code currently
	supports.

	This should eventually query the kernel for the list of
	supported enctypes.

	*utils/gssd/gss_util.c, utils/svcgssd/svcgssd_main_loop.c:
	Print more information in error messages to help debugging failures.

	*utils/svcgssd/svcgssd_proc.c: Increase token buffer size and
	update error handling so that a response is always sent.

	*utils/svcgssd/svcgssd_proc.c: Add support to retrieve
	supplementary groups.

1 files changed, 8 insertions, 0 deletions

diff --git a/utils/exportfs/exports.man b/utils/exportfs/exports.man
index 2b316f5..f420a20 100644
--- a/utils/exportfs/exports.man
+++ b/utils/exportfs/exports.man
@@ -168,6 +168,14 @@ copes with the situation effectively.
 The option can be explicitly disabled with
 .IR hide .
 .TP
+.IR crossmnt
+This option is similar to
+.I nohide
+but it makes it possible for clients to move from the filesystem marked
+with crossmnt to exported filesystems mounted on it.  Thus when a child
+filesystem "B" is mounted on a parent "A", setting crossmnt on "A" has
+the same effect as setting "nohide" on B.
+.TP
 .IR no_subtree_check
 This option disables subtree checking, which has mild security
 implications, but can improve reliability in some circumstances.