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99 Commits
Author SHA1 Message Date
Petr Menšík 0c95a5ff53 Modify and propagate changed lease. 
If hostname is reset on existing lease, propagate such change to leases
file and script.
 2021-07-02 16:58:48 +01:00
Geert Stappers 3573ca0eec Chomp file ends 
Removed empty lines from end of src/*.[ch] files.
If the new last line became '#endif'
was the condition of the '#if' added.
 2021-04-09 17:27:36 +01:00
Matthias Andree b5d1b20727 Fix spacing in translatable strings. 
Signed-off-by: Matthias Andree <matthias.andree@gmx.de>
 2021-03-28 00:58:54 +00:00
Simon Kelley c8e8f5c204 Bump copyright notices for 2021. Happy New Year! 2021-01-24 21:59:37 +00:00
Simon Kelley ee64582a1f Add --script-on-renewal option. 2020-02-27 16:54:12 +00:00
Simon Kelley 52ec783613 Add tag filtering of dhcp-host directives. 2020-02-07 21:05:54 +00:00
Simon Kelley 2a8710ac2f Update copyrights to 2020. 2020-01-05 16:40:06 +00:00
Dominik DL6ER 456a319775 DHCPv6 IAID should be of unsigned type. It is derived from strtoul() in lease.c:read_leases() and already now interpreted as unsigned in helper.c:276 and outpacket.c:put_opt6_long(). RFC3315 (section 22.4) shows that the IAID is 4 bytes long so we do not need to go up to unsigned long. 
Signed-off-by: Dominik DL6ER <dl6er@dl6er.de>
 2019-10-25 22:00:35 +01:00
Florent Fourcot df6636bff6 lease: prune lease as soon as expired 
We detected a performance issue on a dnsmasq running many dhcp sessions
(more than 10 000). At the end of the day, the server was only releasing
old DHCP leases but was consuming a lot of CPU.

It looks like curent dhcp pruning:
 1) it's pruning old sessions (iterate on all current leases). It's
 important to note that it's only pruning session expired since more
 than one second
 2) it's looking for next lease to expire (iterate on all current leases
 again)
 3) it launchs an alarm to catch next expiration found in step 2). This
 value can be zero for leases just expired (but not pruned).

So, for a second, dnsmasq could fall in a "prune loop" by doing:
 * Not pruning anything, since difftime() is not > 0
 * Run alarm again with zero as argument

On a server with very large number of leases and releasing often
sessions, that can waste a very big CPU time.

Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
 2019-02-27 21:28:32 +00:00
Brian Haley 28cfe36e1e Change read_leases() to skip invalid entries. 
There's no reason to stop reading the existing lease file
when dnsmasq is started and an invalid entry is found, it
can just be ignored.  This was fallout from an Openstack
bug where the file was being written incorrectly with []
around IPv6 addresses.
 2019-01-17 23:21:23 +00:00
Simon Kelley cc921df9ce Remove nested struct/union in cache records and all_addr. 2019-01-02 22:48:59 +00:00
Julian Kornberger aba8bbb6e3 Add collection of metrics 
Data can be retreived via D-Bus und U-Bus
 2018-07-21 21:55:08 +01:00
Paul Maddock 51e4eeeb04 Fix address-dependent domains for IPv6. 
Thanks to Paul Maddock for spotting this.
It seems to have been broken forever.
 2018-06-12 16:37:40 +01:00
Simon Kelley d1ced3ae38 Update copyrights to 2018. 2018-01-01 22:18:03 +00:00
Rosen Penev 50a2841d34 Fix function declarations. 2017-06-27 22:27:02 +01:00
Simon Kelley 50ca85504c Bump year in copyrights. 2017-06-24 22:43:18 +01:00
Simon Kelley 05f76dab89 Don't die() on failing to parse lease-script output. 2017-05-09 22:57:04 +01:00
Simon Kelley efff74c1ae Tweak logging introduced in 3a8b0f6fcc 2017-04-28 23:01:23 +01:00
Petr Menšík 3a8b0f6fcc Improve error handling with shcp-script "init" mode. 2017-04-23 14:12:37 +01:00
Josh Soref 730c6745f0 Comprehensive spelling/typo fixes. 
Thanks to Josh Soref for generating these fixes.
 2017-02-06 16:14:04 +00:00
Simon Kelley bf4e62c19e Compile-time check on buffer sizes for leasefile parsing code. 2016-07-22 21:37:59 +01:00
Simon Kelley a93bd4b016 Fix broken DNSMASQ_USER<x> envvars in script with more than one class. 2016-03-01 18:58:01 +00:00
Simon Kelley c49778df4a Update copyright notices. Happy new year! 2016-01-06 18:52:33 +00:00
Nicolas Cavallari 64bcff1c7c Constify some DHCP lease management functions. 2015-04-28 21:55:18 +01:00
Simon Kelley aff3396280 Update copyrights for dawn of 2015. 2015-01-31 20:13:40 +00:00
Simon Kelley 6d8e8ac0fa Tidy up previous commit. 2014-07-13 22:18:57 +01:00
Lung-Pin Chang dc8a1b1bcf Set interface with longest prefix in DHCP & DHCPv6 lease 
- With nested prefixes reside on different interfaces of single host

  (e.g., in 6to4, 2002::/16 on WAN and 2002:<IPv4>:<subnet>::/64 on LAN),

  current matching mechanism might return the interface with shorter prefix

  length instead of the longer one, if it appears later in the netlink message.

Signed-off-by: Lung-Pin Chang <changlp@cs.nctu.edu.tw>
 2014-07-06 21:08:47 +08:00
Simon Kelley dd0e0a3995 Handle time_t wraparound more sanely. 2014-01-22 11:16:59 +00:00
Simon Kelley c47e3ba446 Update copyright for 2014. 2014-01-08 17:07:54 +00:00
Simon Kelley 3511a92869 Fix start-up order for making DHCPv6 DUID 
Previously, if the DUID wasn't read from the lease-file or
script, a new one was created _after_ the helper process fork,
so for that first run, the script calls got an empty DUID.

Also, use a DUID_LL format DUID when there's no stable lease
storage, as well as when the RTC is broken. That has a chance of
evaluating to the same value on each startup.
 2013-11-07 10:28:11 +00:00
Vladislav Grishenko 408c368fa5 Remove unused variable warnings when omitting stuff at compile-time. 2013-09-24 16:18:49 +01:00
Simon Kelley 91543f4831 Fix FTBFS when various facilities omitted at compile time. 2013-09-23 12:41:20 +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 3f2873d42c Handle IPv4 interface-address labels in Linux. 2013-05-14 11:28:47 +01:00
Simon Kelley 0b0a73c1c9 Fix crash on exceeding DHCP lease limit. 2013-04-11 14:07:02 +01:00
Simon Kelley 9de1aa9b7f Fix parsing of IAID>MAXINT in leases file. 
Thanks to Christof Meerwald for the bug report.
 2013-04-10 11:17:12 +01:00
Simon Kelley 27cb314e54 Fix endless loop when dhcp-range goes away. 2013-04-02 20:06:39 +01:00
Simon Kelley a6ebfacf7b Massive refactor of stateful DHCPv6. Lease multiple prefixes per client. 2013-03-06 20:54:27 +00:00
Simon Kelley 61744359de Change copyright messages to include 2013. 2013-01-31 14:34:40 +00:00
Simon Kelley 0c0502426f Check for new SLAAC addresses when we add new prefixes. 2012-12-22 22:13:19 +00:00
Simon Kelley bad7b875eb add general flag param to iface_enumerate IPv6 callback 2012-12-20 22:00:39 +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 8ff556739e SOA serial tweak. 2012-12-09 21:09:01 +00:00
Simon Kelley e1ff419cf9 Complete AXFR support 2012-12-09 17:08:47 +00:00
Simon Kelley b269221c00 Address allocation tweaking - lease outside dhcp-range but in subnet. 2012-09-16 22:22:23 +01:00
Simon Kelley 8b46061e73 Fix DHCPv6 address allocation for some pathalogical cases. 2012-09-08 21:47:28 +01:00
Simon Kelley 919dd7cf14 Fixed missing periodic-ras in some configurations. 2012-05-12 15:23:09 +01:00
Simon Kelley a9ab732e35 reconfirm SLAAC addresses when DHCPv4 leases go though INIT_REBOOT state. 2012-04-29 16:01:28 +01:00
Simon Kelley 5ef33279f2 Tidying radv 2012-03-30 15:10:28 +01:00
Simon Kelley 353ae4d270 Check assumed SLAAC addresses by pinging them. 2012-03-19 20:07:51 +00:00