Commit Graph

261 Commits

Author SHA1 Message Date
Etan Kissling
ba5bd8e556 dnsmasq: distinct Ubus names for multiple instances
Currently, when using multiple dnsmasq instances they are all assigned
to the same Ubus instance name. This does not work, as only a single
instance can register with Ubus at a time. In the log, this leads to
`Cannot add object to UBus: Invalid argument` error messages.
Furthermore, upstream 3c93e8eb41952a9c91699386132d6fe83050e9be changes
behaviour so that instead of the log, dnsmasq exits at start instead.

With this patch, all dnsmasq instances are assigned unique names so that
they can register with Ubus concurrently. One of the enabled instances
is always assigned the previous default name "dnsmasq" to avoid breaking
backwards compatibility with other software relying on that default.
Previously, a random instance got assigned that name (while the others
produced error logs). Now, the first unnamed dnsmasq config section is
assigned the default name. If there are no unnamed dnsmasq sections the
first encountered named dnsmasq config section is assigned instead.

A similar issue exists for Dbus and was similarly addressed.

Signed-off-by: Etan Kissling <etan.kissling@gmail.com>
[tweaked commit message] dnsmasq was not crashing it is exiting
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-06-29 11:27:26 +01:00
Kevin Darbyshire-Bryant
76cc8a036c Revert "dnsmasq: Update to version 2.86test3"
This reverts commit 3628870015.

dnsmasq v2.86test3 has some issues with ubus, so is being reverted.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-06-26 20:31:29 +01:00
Kevin Darbyshire-Bryant
2a9d7ecd27 Revert "dnsmasq: add config option for connmark DNS filtering"
This reverts commit dea4bae7c2.

dnsmasq v2.86test3 has some issues with ubus and needs reverting, hence
this needs reverting.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-06-26 20:30:58 +01:00
Etan Kissling
dea4bae7c2 dnsmasq: add config option for connmark DNS filtering
This adds uci support to configure connmark based DNS filtering.

Signed-off-by: Etan Kissling <etan_kissling@apple.com>
(See https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2021q2/015151.html)
Signed-off-by: Etan Kissling <etan.kissling@gmail.com>
2021-06-26 13:28:47 +01:00
Etan Kissling
3628870015 dnsmasq: Update to version 2.86test3
Need this version to add config option for connmark DNS filtering.

Summary of upstream CHANGELOG:
* Handle DHCPREBIND requests in the DHCPv6 server code.
* Fix bug which caused dnsmasq to lose track of processes forked.
* Major rewrite of the DNS server and domain handling code.
* Revise resource handling for number of concurrent DNS queries.
* Improve efficiency of DNSSEC.
* Connection track mark based DNS query filtering.

Signed-off-by: Etan Kissling <etan.kissling@gmail.com>
2021-06-26 13:28:08 +01:00
Alan Swanson
3980daffa4 dnsmasq: Update to version 2.85
Fixes issue with merged DNS requests in 2.83/2.84 not being
retried on the firsts failed request causing lookup failures.

Also fixes the following security problem in dnsmasq:
* CVE-2021-3448:
  If specifiying the source address or interface to be used
  when contacting upstream name servers such as:
  server=8.8.8.8@1.2.3.4, server=8.8.8.8@1.2.3.4#66 and
  server=8.8.8.8@eth0 then all would use the same socket
  bound to the explicitly configured port. Now only
  server=8.8.8.8@1.2.3.4#66 will use the explicitly
  configured port and the others random source ports.

Remove upstreamed patches and update remaining patch.

Signed-off-by: Alan Swanson <reiver@improbability.net>
[refreshed old runtime support patch]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-05-05 09:19:46 +01:00
João Henriques
e8a5670122 dnsmasq: add ignore hosts dir to dnsmasq init script
When running multiple instances of dnsmasq, for example one being for the lan
and another for a guest network, it might not be desirable to have the same dns names
configured in both networks

Signed-off-by: João Henriques <joaoh88@gmail.com>
2021-04-24 21:35:27 +02:00
Kevin Darbyshire-Bryant
db00f312d3 dnsmasq: Bump to v2.84
dnsmasq v2.84rc2 has been promoted to release.

No functional difference between v2.83test3 and v2.84/v2.84rc2

Backport 2 patches to fix the version reporting

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-02-08 13:16:24 +00:00
Daniel Golle
aed95c4cb8 dnsmasq: switch to ubus-based hotplug call
Use new ubus-based hotplug call in dhcp-script.sh
As sysntpd now makes use of the new ubus-based hotplug calls, dnsmasq
no longer needs to ship ACL to cover ntpd-hotplug.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-08 00:57:14 +00:00
Kevin Darbyshire-Bryant
297f82fc58 dnsmasq: Update to 2.84test3
dnsmasq v2.83 has a bug in handling duplicate queries which means it may
try to reply using the incorrect network socket.  This is especially
noticeable in dual stack environments where replies may be mis-directed to
IPv4 addresses on an IPv6 socket or IPv6 addresses on an IPv4 socket.

This results in system log spam such as:
dnsmasq[16020]: failed to send packet: Network unreachable
dnsmasq[16020]: failed to send packet: Address family not supported by protocol

dnsmasq v2.84test3 resolves these issues.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-01-24 15:56:39 +00:00
Hauke Mehrtens
e87c0d934c dnsmasq: Update to version 2.83
This fixes the following security problems in dnsmasq:
* CVE-2020-25681:
  Dnsmasq versions before 2.83 is susceptible to a heap-based buffer
  overflow in sort_rrset() when DNSSEC is used. This can allow a remote
  attacker to write arbitrary data into target device's memory that can
  lead to memory corruption and other unexpected behaviors on the target
  device.
* CVE-2020-25682:
  Dnsmasq versions before 2.83 is susceptible to buffer overflow in
  extract_name() function due to missing length check, when DNSSEC is
  enabled. This can allow a remote attacker to cause memory corruption
  on the target device.
* CVE-2020-25683:
  Dnsmasq version before 2.83 is susceptible to a heap-based buffer
  overflow when DNSSEC is enabled. A remote attacker, who can create
  valid DNS replies, could use this flaw to cause an overflow in a heap-
  allocated memory. This flaw is caused by the lack of length checks in
  rtc1035.c:extract_name(), which could be abused to make the code
  execute memcpy() with a negative size in get_rdata() and cause a crash
  in Dnsmasq, resulting in a Denial of Service.
* CVE-2020-25684:
  A lack of proper address/port check implemented in Dnsmasq version <
  2.83 reply_query function makes forging replies easier to an off-path
  attacker.
* CVE-2020-25685:
  A lack of query resource name (RRNAME) checks implemented in Dnsmasq's
  versions before 2.83 reply_query function allows remote attackers to
  spoof DNS traffic that can lead to DNS cache poisoning.
* CVE-2020-25686:
  Multiple DNS query requests for the same resource name (RRNAME) by
  Dnsmasq versions before 2.83 allows for remote attackers to spoof DNS
  traffic, using a birthday attack (RFC 5452), that can lead to DNS
  cache poisoning.
* CVE-2020-25687:
  Dnsmasq versions before 2.83 is vulnerable to a heap-based buffer
  overflow with large memcpy in sort_rrset() when DNSSEC is enabled. A
  remote attacker, who can create valid DNS replies, could use this flaw
  to cause an overflow in a heap-allocated memory. This flaw is caused
  by the lack of length checks in rtc1035.c:extract_name(), which could
  be abused to make the code execute memcpy() with a negative size in
  sort_rrset() and cause a crash in dnsmasq, resulting in a Denial of
  Service.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-01-19 13:01:03 +01:00
Aleksandr Mezin
acb336235c dnsmasq: 'ipset' config sections
Allow configuring ipsets with dedicated config sections:

    config ipset
        list name 'ss_rules_dst_forward'
        list name 'ss_rules6_dst_forward'
        list domain 't.me'
        list domain 'telegram.org'

instead of current, rather inconvenient syntax:

    config dnsmasq
        ...
        list ipset '/t.me/telegram.org/ss_rules_dst_forward,ss_rules6_dst_forward'

Current syntax will still continue to work though.

With this change, a LuCI GUI for DNS ipsets should be easy to implement.

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]
2020-11-11 20:47:34 +01:00
Jan Pavlinec
a86c0d97b5 dnsmasq: explictly set ednspacket_max value
This is related to DNS Flag Day 2020. It sets default
ends buffer size value to 1232.

Signed-off-by: Jan Pavlinec <jan.pavlinec@nic.cz>
2020-11-09 20:44:46 +01:00
Daniel Golle
256fa157a9 dnsmasq: install /etc/hotplug.d/ntp/25-dnsmasqsec world-readable
/etc/hotplug.d/ntp/25-dnsmasqsec is being sourced by /sbin/hotplug-call
running as ntpd user. For that to work the file needs to be readable by
that user.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-10-28 02:01:04 +00:00
Joel Johnson
d7db32440f dnsmasq: include IPv6 local nameserver entry
For IPv6 native connections when using IPv6 DNS lookups, there is no
valid default resolver if ignoring WAN DHCP provided nameservers.

This uses a runtime check to determine if IPv6 is supported on the host.

Signed-off-by: Joel Johnson <mrjoel@lixil.net>
2020-10-26 18:51:35 +01:00
Daniel Golle
2e746b4d29 busybox: make username consistent
ntpd in packages feed had already a user 'ntp' with UID 123 declared.
Rename the username of busybox-ntpd to be 'ntp' instead of 'ntpd' so
it doesn't clash.

Reported-by: Etienne Champetier <champetier.etienne@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-10-25 17:26:30 +00:00
Daniel Golle
70c17268a8 dnsmasq: adapt to non-root ntpd
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-10-25 13:01:35 +00:00
Yousong Zhou
7dc78d1d28 dnsmasq: fix handling ignore condition for dnssec
It should return false to indicate that the option should not be ignored

Fixes 064dc1e8 ("dnsmasq: abort when dnssec requested but not
available")

Reported-by: Sami Olmari <sami@olmari.fi>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2020-09-25 10:31:36 +08:00
W. Michael Petullo
d20007ce91 dnsmasq: support tftp_unique_root in /etc/config/dhcp
The TFTP server provided by dnsmasq supports serving a select boot image
based on the client's MAC or IP address. This allows an administrator
to activate this feature in /etc/config/dhcp. Here is an example
/etc/config/dhcp that configures dnsmasq with --tftp-unique-root=mac:

...

config dnsmasq
	option enable_tftp 1
	option tftp_root /usr/libexec/tftpboot
	option tftp_unique_root mac

config boot router
	option serveraddress 192.168.1.1
	option servername tftp.example.com
	option filename openwrt-initramfs-kernel.bin

...

With this configuration, dnsmasq will serve
/usr/libexec/tftpboot/00-11-22-33-44-55/openwrt-initramfs-kernel.bin to
the client with MAC address 00:11:22:33:44:55.

Signed-off-by: W. Michael Petullo <mike@flyn.org>
2020-09-24 22:38:37 +02:00
David Bauer
aa403a440a dnsmasq: abort dhcp_check on interface state
Abort the dhcp-check based on the interface instead of the carrier
state. In cases where the interface is up but the carrier is down,
netifd won't cause a dnsmasq reload, thus dhcp won't become active
on this interface.

Signed-off-by: David Bauer <mail@david-bauer.net>
2020-08-20 23:45:26 +02:00
Yousong Zhou
064dc1e81b dnsmasq: abort when dnssec requested but not available
Before this commit, if uci option "dnssec" was set, we pass "--dnssec"
and friends to dnsmasq, let it start and decide whether to quit and
whether to emit message for diagnosis

  # dnsmasq --dnssec; echo $?
  dnsmasq: DNSSEC not available: set HAVE_DNSSEC in src/config.h
  1

DNSSEC as a feature is different from others like dhcp, tftp in that
it's a security feature.  Better be explicit.  With this change
committed, we make it so by not allowing it in the first in the
initscript, should dnsmasq later decides to not quit (not likely) or
quit without above explicit error (unlikely but less so ;)

So this is just being proactive.  on/off choices with uci option
"dnssec" are still available like before

Link: https://github.com/openwrt/openwrt/pull/3265#issuecomment-667795302
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2020-08-07 15:56:30 +08:00
Kevin Darbyshire-Bryant
a197fa093c dnsmasq: bump to 2.82
This fixes a nasty problem introduced in 2.81 which causes random
crashes on systems where there's significant DNS activity over TCP. It
also fixes DNSSEC validation problems with zero-TTL DNSKEY and DS
records.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-07-20 10:38:35 +01:00
Sven Roederer
2171493f7f dnsmasq: add /etc/dnsmasq.d/ to conffiles
This directory can hold configuration-snippets which should also included in the backup.

Signed-off-by: Sven Roederer <devel-sven@geroedel.de>
2020-06-03 16:49:28 +02:00
Kevin Darbyshire-Bryant
ed91d72eac dnsmasq: hotplug script tidyup
Hotplug scripts are sourced so the #!/bin/sh is superfluous/deceptive.
Re-arrange script to only source 'procd' if we get to the stage of
needing to signal the process, reduce hotplug processing load a little.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-05-10 20:40:30 +01:00
Petr Štetiar
b17a5a9bdb dnsmasq: always inform about disabled dhcp service
Init script checks for an already active DHCP server on the interface
and if such DHCP server is found, then it logs "refusing to start DHCP"
message, starts dnsmasq without DHCP service unless `option force 1` is
set and caches the DHCP server check result.

Each consecutive service start then uses this cached DHCP server check
result, but doesn't provide log feedback about disabled DHCP service
anymore.

So this patch ensures, that the log message about disabled DHCP service
on particular interface is always provided.

Acked-by: Hans Dedecker <dedeckeh@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-04-30 00:52:04 +02:00
Kevin Darbyshire-Bryant
4f34e430ed dnsmasq: bump to v2.81
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-04-12 15:04:48 +01:00
Kevin Darbyshire-Bryant
4540c3c3bf dnsmasq: bump to 2.81rc5
Bump to 2.81rc5 and re-work ipset-remove-old-kernel-support.

More runtime kernel version checking is done in 2.81rc5 in various parts
of the code, so expand the ipset patch' scope to inlude those new areas
and rename to something a bit more generic.:wq

Upstream changes from rc4

532246f Tweak to DNSSEC logging.
8caf3d7 Fix rare problem allocating frec for DNSSEC.
d162bee Allow overriding of ubus service name.
b43585c Fix nameserver list in auth mode.
3f60ecd Fixed resource leak on ubus_init failure.
0506a5e Handle old kernels that don't do NETLINK_NO_ENOBUFS.
e7ee1aa Extend stop-dns-rebind to reject IPv6 LL and ULA addresses. We also reject the loopback address if rebind-localhost-ok is NOT set.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-04-06 09:30:45 +01:00
Kevin Darbyshire-Bryant
8d25c8e7f6 dnsmasq: bump to 2.81rc4
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-03-29 18:30:08 +01:00
Henrique de Moraes Holschuh
556b8581a1 dnsmasq: fix dnssec+ntp chicken-and-egg workaround (FS#2574)
Fix the test for an enabled sysntp initscript in dnsmasq.init, and get
rid of "test -o" while at it.

Issue reproduced on openwrt-19.07 with the help of pool.ntp.br and an
RTC-less ath79 router.  dnssec-no-timecheck would be clearly missing
from /var/etc/dnsmasq.conf.* while the router was still a few days in
the past due to non-working DNSSEC + DNS-based NTP server config.

The fix was tested with the router in the "DNSSEC broken state": it
properly started dnsmasq in dnssec-no-timecheck mode, and eventually ntp
was able to resolve the server name to an IP address, and set the system
time.  DNSSEC was then enabled by SIGINT through the ntp hotplug hook,
as expected.

A missing system.ntp.enabled UCI node is required for the bug to show
up.  The reasons for why it would be missing in the first place were not
investigated.

Signed-off-by: Henrique de Moraes Holschuh <henrique@nic.br>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]
2020-03-25 21:40:51 +01:00
Henrique de Moraes Holschuh
f81403c433 dnsmasq: init: get rid of test -a and test -o
Refer to shellcheck SC2166.  There are just too many caveats that are
shell-dependent on test -a and test -o to use them.

Signed-off-by: Henrique de Moraes Holschuh <henrique@nic.br>
2020-03-25 21:39:20 +01:00
Jordan Sokolic
27ffd5ee30 dnsmasq: add 'scriptarp' option
Add option 'scriptarp' to uci dnsmasq config to enable --script-arp functions.
The default setting is false, meaning any scripts in `/etc/hotplug.d/neigh` intended
to be triggered by `/usr/lib/dnsmasq/dhcp-script.sh` will fail to execute.

Also enable --script-arp if has_handlers returns true.

Signed-off-by: Jordan Sokolic <oofnik@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]
2020-03-22 22:17:37 +01:00
Kevin Darbyshire-Bryant
04a21c26a0 dnsmasq: bump to v2.81rc3
Bump to latest release candidate and drop 2 local patches that have been
upstreamed.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-03-10 12:49:07 +00:00
Kevin Darbyshire-Bryant
0b84b89251 dnsmasq: bump to 2.81rc2 + 2 local
Bump to dnsmasq 2.81rc2.  In the process discovered several compiler
warnings one with a logical error.

2 relevant patches sent upstream, added as 2 local patches for OpenWrt

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-03-06 15:47:56 +00:00
Kevin Darbyshire-Bryant
3251ac8f2d dnsmasq: bump to v2.81rc1
1st release candidate for v2.81 after 18 months.

Refresh patches & remove all upstreamed leaving:

110-ipset-remove-old-kernel-support.patch

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-03-04 20:44:23 +00:00
Russell Senior
731f7ea48a dnsmasq: fix uci-defaults script to exit 0 so it is cleaned up
A file, package/network/services/dnsmasq/files/50-dnsmasq-migrate-resolv-conf-auto.sh,
was added in commit 6a28552120, but it
does not exit in a way that tells the uci-defaults mechanism that it
succeeded, and so it is not cleaned up after running successfully. Add
an exit 0 to the end to correct that.

Signed-off-by: Russell Senior <russell@personaltelco.net>
2020-02-19 22:02:59 +01:00
Hauke Mehrtens
dae0ac7770 dnsmasq: Activate PIE by default
This activates PIE ASLR support by default when the regular option is
selected.

This increases the binary size by 37% uncompressed and 18% compressed
on MIPS BE.

old:
146,933 /usr/sbin/dnsmasq
101,837 dnsmasq_2.80-14_mips_24kc.ipk

new:
202,020 /usr/sbin/dnsmasq
120,577 dnsmasq_2.80-14_mips_24kc.ipk

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Petr Štetiar <ynezz@true.cz>
2020-01-13 15:34:36 +01:00
Daniel Golle
6a28552120 dnsmasq: add uci-defaults script for config migration
When running sysupgrade from an existing configuration, UCI option
dhcp.@dnsmasq[0].resolvfile needs to be modified in case it has not
been changed from it's original value.
Accomplish that using a uci-defaults script.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-01-09 15:37:53 +02:00
Daniel Golle
2e3cf4500b dnsmasq: bump PKG_RELEASE
Previous commit should have bumped PKG_RELEASE, but git add was
forgotten... Add it now.

Fixes: cd48d8d342 ("dnsmasq: switch to /tmp/resolv.conf.d/resolv.conf.auto")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-01-07 15:44:16 +02:00
Daniel Golle
cd48d8d342 dnsmasq: switch to /tmp/resolv.conf.d/resolv.conf.auto
Mount-bind directory instead of resolv.conf.auto file in jail to
avoid problems when the file is deleted/replaced.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-01-07 15:37:22 +02:00
Hauke Mehrtens
414d054138 dnsmasq: Fix potential dnsmasq crash with TCP
This is a backport from the dnsmasq master which should fix a bug which
could cause a crash in dnsmasq.

I saw the following crashes in my log:
[522413.117215] do_page_fault(): sending SIGSEGV to dnsmasq for invalid read access from 2a001450
[522413.124464] epc = 004197f1 in dnsmasq[400000+23000]
[522413.129459] ra  = 004197ef in dnsmasq[400000+23000]
This is happening in blockdata_write() when block->next is
dereferenced, but I am not sure if this is related to this problem or if
this is a different problem. I am unable to reproduce this problem.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-01-06 17:44:22 +01:00
Kevin Darbyshire-Bryant
f1ca277405 dnsmasq: correct sense & usage of dnsseccheckunsigned
dnsmasq v2.80 made 'dnssec-check-unsigned' the default, thus the uci
option was rendered ineffectual: we checked unsigned zones no matter the
setting.

Disabling the checking of unsigned zones is now achieve with the
"--dnssec-check-unsigned=no" dnsmasq option.

Update init script to pass required option in the disabled case.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-11-23 08:29:15 +00:00
Hauke Mehrtens
6596c95eca dnsmasq: Activate LTO
This decreases the binary size when PIE ASLR is activated by 8% on MIPS BE.

old:
202,020 /usr/sbin/dnsmasq

new:
185,676 /usr/sbin/dnsmasq

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-11-08 23:57:51 +01:00
Hans Dedecker
63ced14048 dnsmasq: use nettle ecc_curve access functions
Fixes compile issues with nettle 3.5.1

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2019-08-09 21:40:13 +02:00
Kevin Darbyshire-Bryant
fc5d46dc62 Revert "dnsmasq: backport latest patches"
This reverts commit e9eec39aac.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-08-03 20:55:52 +01:00
Kevin Darbyshire-Bryant
a275466729 Revert "dnsmasq: improve insecure DS warning"
This reverts commit cd91f2327f.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-08-03 20:55:45 +01:00
Kevin Darbyshire-Bryant
cd91f2327f dnsmasq: improve insecure DS warning
Log the failing domain in the insecure DS warning.

Patch has been sent upstream.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-07-25 12:29:08 +01:00
Kevin Darbyshire-Bryant
e9eec39aac dnsmasq: backport latest patches
Backport upstream patches pre 2.81rc for testing purposes.

Let's see what falls out!

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-07-25 12:23:46 +01:00
Yousong Zhou
04b45d3a31 dnsmasq: move feature detection inside a shell func
Resolves openwrt/packages#9219

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2019-06-11 08:32:54 +00:00
Yousong Zhou
0299a4b73e dnsmasq: skip options that are not compiled in
This is to make life easier for users with customized build of
dnsmasq-full variant.  Currently dnsmasq config generated by current
service script will be rejected by dnsmasq build lacking DHCP feature

 - Options like --dhcp-leasefile have default values.  Deleting them
   from uci config or setting them to empty value will make them take on
   default value in the end
 - Options like --dhcp-broadcast are output unconditionally

Tackle this by

 - Check availablility of features from output of "dnsmasq --version"
 - Make a list of options guarded by HAVE_xx macros in src/options.c of
   dnsmasq source code
 - Ignore these options in xappend()

Two things to note in this implementation

 - The option list is not exhaustive.  Supposedly only those options that
   may cause dnsmasq to reject with "unsupported option (check that
   dnsmasq was compiled with DHCP/TFTP/DNSSEC/DBus support)" are taken
   into account here
 - This provides a way out but users' cooperation is still needed.  E.g.
   option dnssec needs to be turned off, otherwise the service script
   will try to add --conf-file pointing to dnssec specific anchor file
   which dnsmasq lacking dnssec support will reject

Resolves FS#2281

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2019-06-09 08:17:52 +00:00
Alexander Couzens
b7f2adbdd3
package/dnsmasq: add max_ttl/min_cache_ttl/max_cache_ttl
max_ttl - limit the ttl in the dns answer if greater as $max_ttl
min_cache_ttl - force caching of dns answers even the ttl in the answer
		is lower than the $min_cache_ttl
max_cache_ttl - cache only dns answer for $max_cache_ttl.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2019-02-24 01:48:25 +01:00