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- Also only allow positive ifindex on both dhcp and ipv4ll
[tomegun: the kernel always sets a positive ifindex, but some APIs accept
ifindex=0 with various meanings, so we should protect against
accidentally passing ifindex=0 along.]
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Also unref client objects in test code, and initalize logging,
to DEBUG by default.
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The DHCP library user can decide to free the DHCP client any time
the callback is called. After the callback has been called, other
computations may still be needed - the best example being a full
restart of the DHCP procedure in case of lease expiry.
Fix this by introducing proper reference counting. Properly handle
a returned NULL from the notify and stop functions if the DHCP
client was freed.
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This test should have been updated when changing the magic cookie handling around.
Reported by Ken MacLeod.
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Try a bit harder to make the kernel drop packets not for us. This should reduce
the number of wakeups from n^2 to n in the number of dhcp clients, which admittedly
only makes a differenc in very extreme cases.
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CLOCK_BOOTTIME_ALARM, too
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One end of the socketpair is closed by the library, so only close our end. Also switch to
the safe_close() so we get notified about problems with closing.
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Check that the client identifier is formatted as suggested in the
RFC and that the messages sent ends with an end option.
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Remove identical checksum function implementation from the test
case code.
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This is similar to sd-login, but exposes the state of networkd rather than logind.
Include it in libsystemd-dhcp and rename it to libsystemd-network.
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