LLMNR/mDNS don't support DNSSEC, hence there's no point in routing any
lookups asking for DNSSEC there.
This speeds up looking up DNSSEC RRs for top-level domains, since we
don't have to wait for LLMNR to complete.
The flag is automatically set by kernel when the valid lifetime is
infinite. Note that the flag in netlink message for IPv4 address is
ignored. See set_ifa_lifetime() in kernel's net/ipv4/devinet.c.
But the flag is honored for IPv6 address. And if the flag is set with
finite valid lifetime, the address will not removed automatically by
the kernel.
If an address is assigned with IFA_F_MANAGETEMPADDR, then the flag must
be also set on remove. Otherwise, temporary addresses will not be
removed. See also inet6_rtm_deladdr() in kernel's net/ipv6/addrconf.c.
Fixes#13218.
The helper checks if the UEFI firmware is hooked up to a TPM2 chip. This
is useful to know in trusted boot scenarios, in particular during early
boot in auto-enroll scenarios where we want to know whether TPM2 is
available or not, and the Linux drivers are not loaded yet, and where it
might or not be worth waiting for it.
The difference between sd_rtnl_message_new_addr() and
sd_rtnl_message_new_addr_update() is only whether NLM_F_REPLACE flag
will be set or not.
If an address is already assigned, then we need to set NLM_F_REPLACE
flag, otherwise, address_configure() will be fail.
This makes address_configure() judge whether we should use the flag or
not.
This use on %n was completely unnecessary: fprintf returns the number of
characters written. And the issue was that if fprintf failed for whatever
reason, it would not process the %n and m would be unitialized. Rework the
code a bit to simplify it.
Coverity CID#1444708.
Coverity says:
CID 1446387 (#1 of 1): Bad bit shift operation (BAD_SHIFT)
8. negative_shift: In expression 1U << (int)cmd, shifting by a negative amount
has undefined behavior. The shift amount, cmd, is -22.
I don't think there's any issue, unless we forget to set token->data
appropriately. Let's add an assert.
Similar to DHCPv4's UseHostname option, add a UseFQDN config option in
[DHCPv6] to set the system's transient hostname if the FQDN option is
set in the DHCPv6 response from the server.
Yu Watanabe
Luca Boccassi
Anita Zhang
Lennart Poettering
Zbigniew Jędrzejewski-Szmek
Vinnie Magro