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e7c0d7b34882cb39def6e5056d525b0ddc428534
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64 Commits

Author SHA1 Message Date
Simon Kelley
e7c0d7b348 dhcp-host selection fix for v4/v6. 
Avoid treating a --dhcp-host which has an IPv6 address
as eligable for use with DHCPv4 on the grounds that it has
no address, and vice-versa.
 2021-02-28 17:56:54 +00:00
Simon Kelley
c8e8f5c204 Bump copyright notices for 2021. Happy New Year! 2021-01-24 21:59:37 +00:00
Simon Kelley
4890bcdea2 Workaround for reported recvmsg() ignoring MSG_PEEK. 2020-04-28 14:02:53 +01:00
Vladislav Grishenko
dded78b233 Add DHCPv6 ntp-server (56) option handling. 
There was discussion in the past regarding DHCPv6 NTP server option
which needs special subclassing per RFC5908.

Patch adds support for unicast, multicast IPv6 address and for FQDN string,
preserving possibly used (as suggested earlier) hex value.

Unfortunately it's still not fully free from limitations - only address list or
only fqdn value list is possible, not mixed due current
state option parsing & flagging.
 2020-03-08 15:34:34 +00:00
Simon Kelley
52ec783613 Add tag filtering of dhcp-host directives. 2020-02-07 21:05:54 +00:00
Simon Kelley
137286e9ba Extend 79aba0f10a for multiple IPv6 addresses. 2020-02-06 22:09:30 +00:00
Simon Kelley
79aba0f10a Support prefixed ranges of ipv6 addresses in dhcp-host. 
When a request matching the clid or mac address is
recieved the server will iterate over all candidate
addresses until it find's one that is not already
leased to a different clid/iaid and advertise
this address.

Using multiple reservations for a single host makes it
possible to maintain a static leases only configuration
which support network booting systems with UEFI firmware
that request a new address (a new SOLICIT with a new IA_NA
option using a new IAID) for different boot modes, for
instance 'PXE over IPv6', and 'HTTP-Boot over IPv6'. Open
Virtual Machine Firmware (OVMF) and most UEFI firmware
build on the EDK2 code base exhibit this behaviour.
 2020-02-03 23:58:45 +00:00
Simon Kelley
2a8710ac2f Update copyrights to 2020. 2020-01-05 16:40:06 +00:00
Ville Skyttä
0c211c4ec5 Support DHCP option 150 (TFTP server address, RFC 5859). 2019-12-05 17:11:09 +00:00
Steven Siloti
d2d4990743 Fix missing braces in 8eac67c0a15b673c8d27002c248651b308093e4 2019-01-17 22:52:13 +00:00
Steven Siloti
18eac67c0a Fix entries in /etc/hosts disabling static leases. 
It is possible for a config entry to have one address family specified by a
dhcp-host directive and the other added from /etc/hosts. This is especially
common on OpenWrt because it uses odhcpd for DHCPv6 and IPv6 leases are
imported into dnsmasq via a hosts file.

To handle this case there need to be separate *_HOSTS flags for IPv4 and IPv6.
Otherwise when the hosts file is reloaded it will clear the CONFIG_ADDR(6) flag
which was set by the dhcp-host directive.
 2019-01-13 22:56:36 +00:00
Simon Kelley
cc921df9ce Remove nested struct/union in cache records and all_addr. 2019-01-02 22:48:59 +00:00
Petr Menšík
47b45b2967 Fix lengths of interface names 
Use helper function similar to copy correctly limited names into
buffers.
 2018-09-04 22:47:58 +01:00
Simon Kelley
734d53176f Add RFC4039 rapid commit support. 2018-03-23 23:09:53 +00:00
Kurt H Maier
486bcd5a7b Simplify and correct bindtodevice(). 2018-01-26 15:10:59 +00:00
Simon Kelley
d1ced3ae38 Update copyrights to 2018. 2018-01-01 22:18:03 +00:00
Simon Kelley
50ca85504c Bump year in copyrights. 2017-06-24 22:43:18 +01:00
Simon Kelley
bf4e62c19e Compile-time check on buffer sizes for leasefile parsing code. 2016-07-22 21:37:59 +01:00
Simon Kelley
c49778df4a Update copyright notices. Happy new year! 2016-01-06 18:52:33 +00:00
Simon Kelley
102208df69 DHCPv6 option 56 does not hold an address list. (RFC 5908). 2015-09-10 21:50:00 +01:00
Simon Kelley
ca85a28241 Allow T1 and T2 DHCPv4 options to be set. 2015-05-13 22:33:04 +01:00
Simon Kelley
aff3396280 Update copyrights for dawn of 2015. 2015-01-31 20:13:40 +00:00
Simon Kelley
c47e3ba446 Update copyright for 2014. 2014-01-08 17:07:54 +00:00
Simon Kelley
00238fb019 indentation fix. 2013-12-18 13:24:12 +00:00
René van Dorst
53c4c5c859 Fix crash at startup when dhcp-host with client-ids is present. 2013-10-18 14:05:32 +01:00
Simon Kelley
3b3f441189 Log SO_BINDTODEVICE use at startup. 2013-10-11 16:33:28 +01:00
Simon Kelley
24b5a5d50b dhcp-host selection fix for v4/v6 2013-10-11 15:19:28 +01:00
Simon Kelley
8584c502d3 Don't do bindtodevice if --interface option not given. 2013-10-10 21:15:23 +01:00
Simon Kelley
903650af67 Further fixes to DHCP logging. 2013-10-03 11:43:09 +01:00
Simon Kelley
e4e9b342a7 Cosmetic change to start-up logging of DHCPv6 configuration. 2013-10-02 11:03:39 +01:00
Simon Kelley
a810559b24 daemon->icmp6fd is always valid when doing DHCPv6 now. 2013-09-25 15:36:00 +01:00
Vladislav Grishenko
408c368fa5 Remove unused variable warnings when omitting stuff at compile-time. 2013-09-24 16:18:49 +01:00
Simon Kelley
89500e31f1 Support MAC addresses in dhcp-host and dhcp-mac for DHCPv6. 2013-09-20 16:29:20 +01:00
Simon Kelley
ff7eea27e7 Add --dhcp-relay config option. 2013-09-04 18:01:38 +01:00
Simon Kelley
ef1a94abaa Advertise lost prefixes with pref_time == 0 for 2 hours. 2013-07-26 13:59:03 +01:00
Simon Kelley
e2ba0df2d4 Don't BIND DHCP socket if more interfaces may come along later. 2013-05-31 17:04:25 +01:00
Simon Kelley
bd08ae67f9 Allow option number zero in encapsulated DHCP options. 2013-04-19 10:22:06 +01:00
Simon Kelley
96c727fda6 Cope with duplicate dhcp-options with tags (last one wins). 2013-04-02 21:35:41 +01:00
Simon Kelley
49333cbdbe Allow trailing '*' wildcard in interface names. 2013-03-15 20:30:51 +00:00
Simon Kelley
c7961075c4 Don't erroneously reject some option names in --dhcp-match 2013-02-28 15:17:58 +00:00
Simon Kelley
61744359de Change copyright messages to include 2013. 2013-01-31 14:34:40 +00:00
Simon Kelley
b1a1b6def5 Tweak DHCP startup logging. 2013-01-11 16:28:50 +00:00
Simon Kelley
771287be11 Wildcards in dhcp-range constructors 2012-12-30 17:38:09 +00:00
Simon Kelley
c1be917782 DHCP context logging, more tweaks 2012-12-18 18:31:11 +00:00
Simon Kelley
72c9c3b11b complicated DHCP context logging. 2012-12-18 18:31:11 +00:00
Simon Kelley
1f776932a1 First checkin of interface-address constructor mode for DHCPv6 and RA. 2012-12-18 18:31:11 +00:00
Simon Kelley
4f7b304f53 Initial code to do authoritative DNS. 2012-11-28 21:27:02 +00:00
Simon Kelley
b191a77901 trivial indent fix. 2012-10-24 14:16:00 +01:00
Simon Kelley
35239a302a Tweak dhcp-config sanity checking. 2012-09-24 15:09:33 +01:00
Simon Kelley
23245c0cb2 RFC 4242 support. 2012-07-18 16:21:11 +01:00