Dan Streetman
b0d7d8063c
The parsing of the dhcpv4 lease lifetime, as well as the t1/t2 times, is simplified by this commit. This differs from previous behavior; previously, the lease lifetime and t1/t2 values were modified by random 'fuzz' by subtracting 3, then adding a random number between 0 and (slightly over) 2 seconds. The resulting values were therefore always between 1-3 seconds shorter than the value provided by the server (or the default, in case of t1/t2). Now, as described in RFC2131, the random 'fuzz' is between -1 and +1 seconds, meaning the actual t1 and t2 value will be up to 1 second earlier or later than the server-provided (or default) t1/t2 value. This also differs in handling the lease lifetime, as described above it previously was adjusted by the random 'fuzz', but the RFC does not state that the lease expiration time should be adjusted, so now the code uses exactly the lease lifetime as provided by the server with no adjustment.
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