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Dan Streetman b0d7d8063c sd-dhcp-client: simplify dhcp4 t1/t2 parsing 
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.
 		2020-12-14 18:19:07 -05:00
..
arp-util.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
arp-util.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-client-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-identifier.c Merge pull request #17478 from yuwata/split-network-internal 2020-11-27 09:04:19 +09:00
dhcp-identifier.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-lease-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-network.c libsystemd-network: add comment explaining unusual memory access 2020-11-10 15:52:32 +01:00
dhcp-option.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-packet.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-protocol.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp-server-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp6-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp6-lease-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp6-network.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp6-option.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
dhcp6-protocol.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
icmp6-util.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
icmp6-util.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
lldp-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
lldp-neighbor.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
lldp-neighbor.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
lldp-network.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
lldp-network.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
meson.build Merge pull request #17478 from yuwata/split-network-internal 2020-11-27 09:04:19 +09:00
ndisc-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
ndisc-router.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
ndisc-router.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
network-internal.c Merge pull request #17478 from yuwata/split-network-internal 2020-11-27 09:04:19 +09:00
network-internal.h Merge pull request #17478 from yuwata/split-network-internal 2020-11-27 09:04:19 +09:00
radv-internal.h license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
sd-dhcp-client.c sd-dhcp-client: simplify dhcp4 t1/t2 parsing 2020-12-14 18:19:07 -05:00
sd-dhcp-lease.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
sd-dhcp-server.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
sd-dhcp6-client.c Merge pull request #17478 from yuwata/split-network-internal 2020-11-27 09:04:19 +09:00
sd-dhcp6-lease.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
sd-ipv4acd.c sd-ipv4acd: logs current state 2020-12-02 18:42:17 +09:00
sd-ipv4ll.c sd-ipv4acd,sd-ipv4ll: include interface name in the debug logs 2020-12-02 18:42:13 +09:00
sd-lldp.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
sd-ndisc.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
sd-radv.c sd-radv: refuse to set preference except medium when router lifetime is zero 2020-11-10 00:04:52 +09:00
test-acd.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-dhcp-client.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-dhcp-option.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-dhcp-server.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-dhcp6-client.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-ipv4ll-manual.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-ipv4ll.c sd-ipv4acd,sd-ipv4ll: introduce _get_ifindex() and _get_ifname() 2020-12-02 18:40:24 +09:00
test-lldp.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-ndisc-ra.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-ndisc-rs.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
test-sd-dhcp-lease.c license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00