Commit 4392020ba0 (fs: Restrict 'fs flushall' to root) changed the
fs_flushall manpage to document the new behavior, but now the manpage
lacks any information about old versions. Document the old behavior as
well, to be clear that "old" (current stable) versions do not require
root access.
Change-Id: Icbe6843d8ed0a523eb4df7136ad6f336f8b50fa6
Reviewed-on: https://gerrit.openafs.org/16030
Reviewed-by: Cheyenne Wills <cwills@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Commands like 'fs flush' and 'fs flushvolume' require the caller to be
able to lookup the target file, but 'fs flushall' has no access checks
at all, and hasn't since it was introduced in commit 4197bbecd9
(libafs: fs flushall for unix cm). This allows unauthenticated users
to flush the cache of files/volumes they have no access to, and means
flushing the entire cache requires less access than flushing parts of
the cache, which doesn't make much sense.
Change the command to only be runnable by the local superuser root,
and document the restriction.
Change-Id: I906d6c02a16b49ae31ab8e644a8ffb85c4e3434d
Reviewed-on: https://gerrit.openafs.org/15393
Reviewed-by: Cheyenne Wills <cwills@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Implement the fs flushall command on the unix cache manager to flush
all volume data. Uses a new common pioctl code point VIOC_FLUSHALL (14),
registered with the grand.central.org assigned numbers.
Change-Id: I214d8c762573b308d79fa7122a91d48ddd403eb9
Reviewed-on: http://gerrit.openafs.org/7540
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
