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The mon_name argument of an SM_NOTIFY request is a string that
identifies the rebooting host.
sm-notify should send the my_name provided by the local lockd at the
time the remote was monitored, rather than cocking up a mon_name
argument based on the present return value of gethostname(3). If the
local system's hostname happened to change after the last reboot, then
the string returned by gethostname(3) will not be recognized by the
remote. Thus the remote will never initiate lock recovery for the
original named host, possibly leaving stale locks.
The existing behavior of using the -v command line option as the
mon_name argument is preserved, but we now prevent sending an IP
presentation address, as some non-Linux implementations don't
recognize addresses as valid mon_names.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Expand and clarify the explanation of NSM operation on Linux, and
provide the same text in both man pages.
Update descriptions of the command line options to match the operation
of the current implementation.
Introduce sections discussing security and operational issues, and
IPv6 operation.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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To facilitate code sharing between statd and sm-notify (and with other
components of nfs-utils), replace sm-notify's nsm_log() with xlog().
Since opt_quiet is used in only a handful of insignificant cases, it
is removed.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Add sm-notify to the compile/install scripts,
(and fix a compile warning).
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