don't use configuration directories which are relative
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/14975
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Add support for handling of DNS RR (Resource Records) requests, which
are needed for the HTTPS Type 65 records, introduced to support the
DNS-based Service Discovery (DNS-SD) mechanism for HTTPS services and
defined in the RFC 9460 (9.1. Query Names for HTTPS RRs).
Ref: https://forum.openwrt.org/t/resolving-query-type-65-to-local-address-for-ios-clients-in-dnsmasq/179504/11
uci config usage:
config dnsrr
option rrname 'foo.example.com'
option rrnumber '65'
option hexdata '00'
hexdata is optional.
Available since dnsmasq 2.62 (for around 12 years at this point).
Note: dnsmasq dns-rr are not affected by filter-rr
Tested on 22.03.5
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Tested-by: Vladimir Kochkovski <ask@getvladimir.com>
Link: https://github.com/openwrt/openwrt/pull/14975
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Prevents problems when variables contain spaces.
Tested on: 23.05.3
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/14975
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Users can now freely add new dnsmasq parameters (i.e. a whole config)
via extraconf. This means users can add their own parameters without
changes to init or GUI.
Co-opted the default of confdir also to include the instance name.
This way each instance gets its own .d directory (and separate instances
do not all inherit the same 'extraconftext').
Usage:
config dnsmasq 'config'
...
option extraconftext 'cache-size=2048\nlog-async=20'
config dnsmasq 'blah'
...
option extraconftext 'cache-size=128\nlog-async=5'
or even (which would produce staggered output but still valid)
config dnsmasq 'blah'
...
option extraconftext 'cache-size=128
log-async=5'
See https://forum.openwrt.org/t/add-dnsmasq-custom-options-field-in-luci-gui/193184
Tested on: 23.05.3, 22.03.6
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Tested-by: Vladimir Kochkovski <ask@getvladimir.com>
Link: https://github.com/openwrt/openwrt/pull/14975
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
dnsmasq v2.90 introduced `--cache-rr=<rrtype>[,<rrtype>...]`.
uci config usage:
config dnsmasq
...
option cache_rr 'AAAA,CNAME,NXDOMAIN,SRV,...'
The dnsmasq instance internally builds a linked list of RR to cache
from the individually supplied parameters, so it's allowed to provide
multiples:
... --cache-rr=AAAA --cache-rr=A ...
See https://forum.openwrt.org/t/resolving-query-type-65-to-local-address-for-ios-clients-in-dnsmasq/179504
Tested on: 23.05.2
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Tested-by: Vladimir Kochkovski <ask@getvladimir.com>
Link: https://github.com/openwrt/openwrt/pull/14975
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
dnsmasq v2.90 introduced `--filter-rr=<rrtype>[,<rrtype>...]`.
uci config usage:
config dnsmasq
...
option filter_rr 'AAAA,CNAME,NXDOMAIN,SRV,...'
The dnsmasq instance internally builds a linked list of RR to filter
from the individually supplied parameters, so it's harmless to provide
synonyms:
... --filter-A --filter-rr=A ...
See https://forum.openwrt.org/t/resolving-query-type-65-to-local-address-for-ios-clients-in-dnsmasq/179504/23
Tested on: 23.05.2
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Tested-by: Vladimir Kochkovski <ask@getvladimir.com>
Link: https://github.com/openwrt/openwrt/pull/14975
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Forward client mac address and subnet on dns queries. Pi-hole and Adguard use this feature to send the originators ip address/subnet so it can be logged and not just the nat address of the router. This feature has been added since version 2.56 of dnsmasq and would be nice to expose this feature in openwrt.
Signed-off-by: Carsten Schuette <schuettecarsten@googlemail.com>
Link: https://github.com/openwrt/openwrt/pull/15965
Signed-off-by: Robert Marko <robimarko@gmail.com>
In some situations (slow protocol or interfaces with auto 0), the
interfaces are not available during the dnsmasq initialization and
hence, the ignore setting will be skipped.
Install an interface trigger for ignored interfaces in case their
ifname cannot be resolved.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
[bump PKG_RELEASE]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Prior to this commit, "localuse" (which enables local resolving through
dnsmsasq) was off by "default". That default was in turn overridden when
"noresolv" was unset (which itself is the default for "noresolv") *and*
"resolvfile" was "/tmp/resolv.conf.d/resolv.conf.auto" (also the default
for this parameter).
In other words, the "default" unset value for "localuse" would only be
ever used in specific *non-default* configurations.
However, the problem with that logic is that a user who wants to ignore
their ISP-provided resolvers by setting "noresolv" to true ends up with
a device that will *only use* said resolvers for local DNS queries,
serving clients' queries via dnsmasq (which now ignores the ISP
resolvers). This can lead to confusion and break random setups as the
DNS lookup performed on clients behalf can differ in their replies from
DNS lookups performed locally on the router.
Furthermore, "localuse" is not configurable through Luci, contrary to
the other two involved settings, adding further confusion for the end
user.
To work around this situation, the logic that sets "localuse" is
inverted: "localuse" now defaults to on by default, and IFF "noresolv"
is unset (default) AND "resolvfile" is changed from default THEN
"localuse" gets turned back off, allowing for more sensible behaviour.
"localuse" value set in config/dhcp still overrides the logic in all
cases, as it did already.
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
The new rewritten ipcalc.sh understands 3 notations:
ipaddr/prefix ...
ipaddr/dotted-netmask ...
ipaddr dotted-netmask ...
meaning that the previous 4th non-standard notation of "ipaddr prefix"
will be dropped, alas that's the notation that dnsmasq currently uses.
This change has us using the first notation which is the most common.
This behavior came in as
eda27e8382
a long time ago.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
It's already pulled in from /etc/rc.common.
Fixes: #13758
Fixes: 6b23836071 ("package: avoid the use of eval to parse ipcalc.sh output")
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
The option 31 in the RA specifies the DNS search list, the support
to configure this via UCI is missing in case dnsmasq-dhcpv6 is used.
This commit uses the uci option domain (same as is done by odhcpd) to
read and pass the DNS search list to dnsmasq, which is then used by RA.
Hence, with this commit, we are able to configure DNS search list for the
RA messages via the uci config when dnsmsaq-dhcpv6 is used.
Signed-off-by: Rahul Thakur <rahul.thakur@iopsys.eu>
In the dnsmasq init script, an off-by-one in the range calculation of
ipcalc.sh was mitigated by passing the limit as if its counting started
at zero. This patch removes the mitigation as the off-by-one has been
fixed.
Signed-off-by: Leon M. Busch-George <leon@georgemail.eu>
Add a function 'ipcalc' to /lib/functions.sh that sets variables more
safely using export.
With this new function, dnsmasq also handles the return value of ipcalc
correctly.
Fixes: e4bd3de1be ("dnsmasq: refuse to add empty DHCP range")
Co-Authored-By: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: Leon M. Busch-George <leon@georgemail.eu>
Given ipv6 has SLAAC it is quite plausible to wish to use dynamic
dhcp4 but static dhcp6. This patch keeps dynamicdhcp as the default
option for both, but is overridden by dynamicdhcpv6 or dynamicdhcpv4
Signed-off-by: Ian Dall <ian@beware.dropbear.id.au>
The dhcphostsfile must be mounted into the (ujail) sandbox.
The file can not be accessed without this mount.
Signed-off-by: Ruben Jenster <rjenster@gmail.com>
Use ipcalc's return value to react to invalid range specifications.
By simply ignoring the range instead of aborting with an error code,
dnsmasq should still start when there's an error (best effort).
Aborting the config generation or working with invalid range specs leaves
dnsmasq crash-looping which is the right thing to do concerning that
particular interface but it also hinders DHCP service on other interfaces
and DNS on the router itself.
Signed-off-by: Leon M. George <leon@georgemail.eu>
Add new UCI list 'addn_mount' allowing the expose additional filesystem
paths to the jailed dnsmasq process. This is useful e.g. in case of
manually configured includes to the configuration file or symlinks
pointing outside of the exposed paths as used by e.g. the safe-search
package in the packages feed.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This add --filter-A and --filter-AAAA options, to remove IPv4 or IPv6
addresses from DNS answers. these options is supported since version 2.87.
Co-authored-by: NueXini <nuexini@alumni.tongji.edu.cn>
Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
Add build option for nftables sets. By default disable iptables ipset
support. By default enable nftable nftset support since this is what
fw4 uses.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
dnsmasq: nftset: serve from ipset config
Use existing ipset configs as source for nftsets to be compatible with
existing configs. As the OS can either have iptables XOR nftables
support, it's fine to provide both to dnsmasq. dnsmasq will silently
fail for the present one. Depending on the dnsmasq compile time options,
the ipsets or nftsets option will not be added to the dnsmasq config
file.
dnsmasq will try to add the IP addresses to all sets, regardless of the
IP version defined for the set. Adding an IPv6 to an IPv4 set and vice
versa will silently fail.
Signed-off-by: Mathias Kresin <dev@kresin.me>
dnsmasq: support populating nftsets in addition to ipsets
Tell dnsmasq to populate nftsets instead of ipsets, if firewall4 is present in
the system. Keep the same configuration syntax in /etc/config/dhcp, for
compatibility purposes.
Huge thanks to Jo-Philipp Wich for basically writing the function.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
dnsmasq: obtain nftset ip family from nft
Unfortunately dnsmasq nft is noisy if an attempt to add a mismatched ip address
family to an nft set is made.
Heuristic to guess which ip family a nft set might belong by inferring
from the set name.
In order of preference:
If setname ends with standalone '4' or '6' use that, else
if setname has '4' or '6' delimited by '-' or '_' use that (eg
foo-4-bar) else
If setname begins with '4' or '6' standalone use that.
By standalone I mean not as part of a larger number eg. 24
If the above fails then use the existing nft set query mechanism and if
that fails, well you're stuffed!
With-thanks-to: Jo-Philipp Wich <jo@mein.io> who improved my regexp
knowledge.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
dnsmasq: specify firewall table for nftset
Permit ipsets to specify an nftables table for the set. New config
parameter is 'table'. If not specified the default of 'fw4' is used.
config ipset
list name 'BK_4,BK_6'
option table 'dscpclassify'
option table_family 'ip'
option family '4'
list domain 'ms-acdc.office.com'
list domain 'windowsupdate.com'
list domain 'update.microsoft.com'
list domain 'graph.microsoft.com'
list domain '1drv.ms'
list domain '1drv.com'
The table family can also be specified, usually 'ip' or 'ip6' else the
default 'inet' capable of both ipv4 & ipv6 is used.
If the table family is not specified then finally a family option is
available to specify either '4' or '6' for ipv4 or ipv6 respectively.
This is all in addition to the existing heuristic that will look in the
nftset name for an ip family clue, or in total desperation, query the
value from the nftset itself.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
If logfacility is a path to a file it needs to be r/w mounted in the
sandbox as well for dnsmasq to work.
Reported-by: @iointerrupt
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Problem exist when dnsmasq is exclusively bind to particular interface.
After reconfiguring or restarting this interface, its index changes, but
dnsmasq uses the old one. When this problem occurs, dnsmasq does not
listen on the correct interface so DHCP does not work, and clients do not
get an IP address. Procd netdev param can be added to restart dnsmasq when
the interface index is changed.
Signed-off-by: Valentyn Datsko <valikk.d@gmail.com>
[combined into a single &&-connected statement]
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Fix the return value, shell return codes should be 0 to indicate success
(i.e. mount point found), 1 should be failure (i.e. mount point not-found).
Fixes: ac4e8aa ("dnsmasq: fix more dnsmasq jail issues")
Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>
A set of tags can be specified for --dhcp-host option to restrict the
assignment to the requests which match all the tags.
Example usage:
config vendorclass
option networkid 'udhcp'
option vendorclass 'udhcp'
config host
option mac '*:*:*:*:*:*'
list match_tag 'switch.10'
list match_tag 'udhcp'
option ip '192.168.25.10'
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Commit a2fcd3900c ("dnsmasq: improve init script") broke the existing
handling for hosts_dir. Remove the redundant mount again to fix it.
Reported-by: Hartmut Birr <e9hack@gmail.com>
Fixes: a2fcd3900c ("dnsmasq: improve init script")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* fix restart in LuCI (inherited umask was to restrictive)
* make directory of hosts-file (!= /tmp) accessible in ujail
Reported-by: Hannu Nyman <hannu.nyman@iki.fi>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Bring the usage in line with the dnsmasq man page and the other options
where set: is mandatory.
No functional change.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
EXTRA_MOUNT variable should be reset in dnsmasq_start() rather than
just once at the beginning of the script.
Fixes: ac4e8aa2f8 ("dnsmasq: fix more dnsmasq jail issues")
Reported-by: Hartmut Birr <e9hack@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* remove superflus mounts of /dev/null and /dev/urandom
* reset EXTRA_MOUNTS at the beginning of the script
* add mount according to ignore_hosts_dir
* don't add mount for file which is inside a directory already in the
EXTRA_MOUNTS list
Fixes: 59c63224e1 ("dnsmasq: rework jail mounts")
Reported-by: Hartmut Birr <e9hack@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* split into multiple lines to improve readability
* use EXTRA_MOUNT for addnhosts instead of blindly adding /tmp/hosts
* remove no longer needed mount for /sbin/hotplug-call
* add dhcp-script.sh dependencies (jshn, ubus)
Fixes: 3a94c2ca5c ("dnsmasq: add /tmp/hosts/ to jail_mount")
Fixes: aed95c4cb8 ("dnsmasq: switch to ubus-based hotplug call")
Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Programs like the olsr-name-plugin write hostname files to "/tmp/hosts/".
If you don't add this to the jail_mount, dnsmasq can't read it anymore.
Signed-off-by: Nick Hainke <vincent@systemli.org>
'--local' is a synonym for '--server' so let's use '--local' in the
resultant config file for uci's 'local' instead of uci's local
parameter being turned into '--server'. Slightly less confusion all
round.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
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>
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>
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>
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]
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>
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>
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>
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>
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>
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>
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]
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>
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]
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>
