Right now interface.update events are sent out by netifd upon interface state,
route, address (lifetime), prefix lifetime changes.
Dnsmasq is only interested in interface state changes and currently adds an
interface trigger for all the "interface.*" events.
In combination with commit 23bba9cb33, which triggers a SIGHUP signal to dnsmasq,
IPv6 address/prefix lifetime changes on the wan will trigger dnsmasq reloads which
can become frequent in case of shorter lifetimes.
To avoid frequent dnsmasq reload, this patch adds specific interface triggers.
During dnsmasq init it loops dhcp uci section; if the value of the ignore option
is set to 0, then the corresponding interface trigger is not installed.
Otherwise, if the ignore option value is 1, then procd_add_interface_trigger is
called which adds the interface trigger.
Signed-off-by: hux <xinxing.huchn@gmail.com>
RFC6771 does not exclude the forwarding of the example domain as it
states : "Caching DNS servers SHOULD NOT recognize example names as
special and SHOULD resolve them normally."
Example domains cannot be assigned to any user or person by DNS
registrars as they're registered in perpetuity to IANA meaning
they can be resolved; therefore let's remove the example domains
from the rfc6761.conf file.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Improve portability of init script by declaring resolvfile as local
in dnsmasq_stop function.
Fixes resolvfile being set for older busybox versions in dnsmasq_start
in a multi dnsmasq instance config when doing restart; this happens when
the last instance has a resolvfile configured while the first instance
being started has noresolv set to 1.
Base on a patch by "Phil"
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Dnsmasq used SIGHUP to do too many things: 1) set dnssec time validation
enabled, 2) bump SOA zone serial, 3) clear dns cache, 4) reload hosts
files, 5) reload resolvers/servers files.
Many subsystems within LEDE can send SIGHUP to dnsmasq: 1) ntpd hotplug
(to indicate time is valid for dnssec) 2) odhcpd (to indicate a
new/removed host - typically DHCPv6 leases) 3) procd on interface state
changes 4) procd on system config state changes, 5) service reload.
If dnssec time validation is enabled before the system clock has been
set to a sensible time, name resolution will fail. Because name
resolution fails, ntpd is unable to resolve time server names to
addresses, so is unable to set time. Classic chicken/egg.
Since commits 23bba9cb33 (service reload) &
4f02285d8b (system config) make it more
likely a SIGHUP will be sent for events other than 'ntpd has set time'
it is more likely that an errant 'name resolution is failing for
everything' situation will be encountered.
Fortunately the upstream dnsmasq people agree and have moved 'check
dnssec timestamp enable' from SIGHUP handler to SIGINT.
Backport the upstream patch to use SIGINT.
ntpd hotplug script updated to use SIGINT.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Send a SIGHUP signal via procd to the dnsmasq service so the instance(s)
re-read(s) the /tmp/hosts/dhcp config.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
If the hostname in /etc/config/system is modified the dnsmasq should also
get triggered to rewrite/reload the config.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Different invocations of the dnsmasq init script (e.g. at startup by procd)
will rewrite the dhcp host file which might result into dnsmasq reading an
empty dhcp host file as it is being rewritten by the dnsmasq init script.
Let the dnsmasq init script first write to a temp dhcp host file so it does
not overwrite the contents of the existing dhcp host file.
Reported-by: Hartmut Birr <e9hack@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Due to improper localization of helper variables, "config host" entries
without a given mac address may inherit the mac address of a preceeding,
leading to invalid generated netive configuration.
Fix the issue by marking the "macs" and "tags" helper variables in
dhcp_host_add() local, avoiding the need for explicitely resetting them
with each invocation.
Reported-by: Russell Senior <russell@personaltelco.net>
Tested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Without this change, the instance-specific conf-file is being added to procd_add_jail_mount,
but not used by dnsmasq.
Signed-off-by: Emerson Pinter <dev@pinter.com.br>
This patch adds a parser for the uci representation of
dnsmasq's "-a | --listen-address" option.
In summary, this option forces dnsmasq to listen on the
given IP address(es). Both interface and listen-address
options may be given, in which case the set of both
interfaces and addresses is used.
Note that if no interface option is given, but listen_address is,
dnsmasq will not automatically listen on the loopback interface.
To achieve this, the loopback IP addresses, 127.0.0.1 and/or ::1
must be explicitly added.
This option is useful for ujailed dnsmasq instances, that would
otherwise fail to work properly, because listening to the
"This host on this network" address (aka 0.0.0.0 see rfc1700 page 4)
may not be allowed.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> (PKG_RELEASE increase)
Init script won't append --no-dhcp-interface option if interface
protocol is one of: ncm, directip, qmi, mbim.
This is caused by IP address assigned to dynamically created netifd
interfaces. As a result there's no netmask assigned to the main
interface and dhcp_add() function returns prematurely.
By moving network subnet check we can ensure that --no-dhcp-interface is
properly generated for wwan interfaces.
Signed-off-by: Marcin Jurkowski <marcin1j@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase; move network checks]
Currently, dnsmasq support assigning multiple tags to a host record
(--dhcp-host), but we only support only 1 tag for a host. The commit
makes the following config to be valid:
config host
option name 'computer'
option mac '00:11:22:33:44:55'
option ip '192.168.1.100'
list tag 'vendor_class'
list tag 'vendor_id'
config tag 'vendor_class'
list dhcp_option 'option:vendor-class,00:...<omitted>'
config tag 'vendor_id'
option force '1'
list dhcp_option 'option:vendor-id-encap,00:...<omitted>'
Signed-off-by: Kuang Rufan <kuangrufan@pset.suntec.net>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Introduce a new UCI list setting `list dhcp_option_force` which is available
in sections of type `dnsmasq` and `dhcp`.
The `dhcp_option_force` setting has the same semantics as `dhcp_option` but
generates `dhcp-option-force` directives instead of `dhcp-option` ones in
emitted native configuration.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Commit 5cd88f4 "dnsmasq: remove use of uci state for getting network ifname"
broke the ability to specify unmanaged network device names for inclusion
and exclusion in the uci configuration.
Restore support for raw device names by falling back to the input value
when "network_get_device" yields no result.
Fixes FS#876.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This is functionally the same as --server, but provides some syntactic sugar to
make specifying address-to-name queries easier.
For example --rev-server=1.2.3.0/24,192.168.0.1 is exactly equivalent to
--server=/3.2.1.in-addr.arpa/192.168.0.1
Signed-off-by: DUPONCHEEL Sébastien <sebastien.duponcheel@corp.ovh.com>
dnsmasq can match tags in its dhcp-range configuration, this commit adds
the option to configure it in the dhcp section
uci configuration:
config dhcp 'lan'
option interface 'lan'
list tag 'blue'
list tag '!red'
option start '10'
option limit '150'
option leasetime '12h'
generated dnsmasq configuration:
dhcp-range=tag:blue,tag:!red,set:lan,192.168.1.10,192.168.1.159,255.255.255.0,12h
Signed-off-by: Grégoire Delattre <gregoire.delattre@gmail.com>
With this patch the dnsmasq init script manages resolv.conf if and only if
when dnsmasq will listen on 127.0.0.1#53 (is main resolver instance).
Also, resolvfile is now set irrespective of the value of noresolv.
Fixes (partially) FS#785
Signed-off-by: Paul Oranje <por@xs4all.nl>
'non-wildcard' interfaces enables dnsmasq's '--bind-dynamic' mode. This
binds to interfaces rather than wildcard addresses *and* keeps track of
interface comings/goings via a unique Linux api.
Quoting dnsmasq's author "bind-dynamic (bind individual addresses, keep
up with changes in interface config) ... On linux, there's actually no
sane reason not to use --bind-dynamic, and it's only not the default for
historical reasons."
Let's change history, well on LEDE at least, and change the default!
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
Commit b32689afd6 added support for dhcp-script hook.
Adding dhcp-script config option results into two instances of dnsmasq being run
which triggered oom issues on platforms having low memory.
The dnsmasq dhcp-script config option will now only be added if at least one of the
dhcp, tftp, neigh hotplug dirs has a regular hotplug file or if the dhcpscript uci
config option is specified.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Adds a script which acts as a hook for when dnsmasq creates/destroys a
lease, or completes a TFTP file transfer. The hook loops through scripts
in appropriate directories inside '/etc/hotplug.d', executing each one with
the same arguments supplied by dnsmasq.
In case dnsmasq is jailed by ujail the dhcp-script hook will not work as
expected as ujail does not yet support executing a script within a jail.
Signed-off-by: Nick Brassel <nick@tzarc.org>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
When in ra server mode, configure nameservers passed in router
announcements from the dns value (which is already used by odhcpd).
This also fixes FS#677 by using the global IPv6 address of the router
instead of the link local address (if no nameservers are configured).
Signed-off-by: Arjen de Korte <build+lede@de-korte.org>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]
This patch adds the interface-name option for each dhcp config
in /etc/config/dhcp.
With the interface_name option users can define a DNS name for each dhcp section
that will be resolved by dnsmasq with the underlaying interface address.
For example:
config dhcp 'lan'
option interface 'lan'
...
list interface_name 'home.lan'
...
Signed-off-by: Daniel Danzberger <daniel@dd-wrt.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]
If there's a TFTP root directory configured, create it with mkdir -p
(which does not throw an error if the folder exists already)
before starting dnsmasq. This is useful for TFTP roots in /tmp, for example.
Originally submitted by nfw user aka Nathaniel Wesley Filardo
Signed-off-by: Alberto Bursi <alberto.bursi@outlook.it>
Configuring dhcp_option as an option does not allow the usage of white
spaces in the option value; fix this by supporting dhcp_option as a list
config while still supporting the option config to maintain backwards
compatibility
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
minor/cosmetic: fixes the following misleading message:
root@box:~ /etc/init.d/dnsmasq restart
sh: out of range
Signed-off-by: Bastian Bittorf <bb@npl.de>
Similar to odhcpd, allow using ISC DHCPd instead of dnsmasq.
Disable DHCP and/or DHCP6 in case ISC DHCP is present and
enabled.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
The relay section should use the logical interface name and
not the linux network device name directly. This to be
consistent with other sections of the dnsmasq config where
'interface' means the logical interface.
Signed-off-by: Karl Vogel <karl.vogel@gmail.com>
If noresolv is set, we should not generate a --resolv-file parameter.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [minor cleanup]
RFC 6761 defines a number of top level domains should not be forwarded
to the Internet's domain servers since they are not responsible for
those domains.
This change adds a list of domains that will be blocked when 'boguspriv'
is used and augments that which is already blocked by dnsmasq's notion
of 'local service' using '--bogus-priv' i.e. RFC 1918 private addresses
and IPv6 prefixes as defined in RFC 6303.
To make this configurable rather than hard coded in dnsmasq's init
script, a new file /usr/share/dnsmasq/rfc6761.conf is conditionally
included.
The default file matches the RFC 6761 recommendation along with a few
other top level domains that should not be forwarded to the Internet.
Compile & run tested Archer C7 v2
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
ref commit 9525743c07
dnsmasq: make DHCPv6 viable for standalone dnsmasq install
Above commit broke instancing by missing filter_dnsmasq()
as part of the dhcp_add() execution.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Do not spam the syslog with DHCPv6 lease info if quietdhcp option
is selected. This already works for DHCPv4, make it work in the same
way for DHCPv6.
Signed-off-by: Arjen de Korte <build+lede@de-korte.org>
[Originally written by Arjen de Korte on GitHub but had issues providing
a SoB in correct format.]
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
dnsmasq has sufficient services to meet the needs of DHCP
and RA with IP6 for single router router users. This is
the most common use for consumer routers. Its reenforced
as most ISP tend to only DHCP-PD /64. dnsmasq has year
over year demonstrated great flexibility in its option
set, and support for off-standard DHCP clients.
odhcpd has enhanced capabilities focused on IP6 such
as DHCP/RA relay and NDP proxy. However, it is not as
flexible in its option set. odhcpd is not as forgiving
with off-standard DHCP clients. Some points may represent
a long term TODO list, but it is the state currently.
These changes make any such combination possible. Already
odhcpd can be set as the main dhcp server. Now odhcpd
can be removed or disabled and dnsmasq will take over
if DHCPv6 compiled in. The existing DHCPv6 and RA UCI
are translated into dnsmasq.conf. The changes focus on
'--dhcp-range', '--dhcp-host', and '--dhcp-options'.
DHCP host ID is least 16 bits [::1000-::FFFF], but
leaves low range for typical infrastructure assignments.
dnsmasq accepts DHCPv6 options in the tranditional
'--dhcp-option' put they must be prefixed 'option6:'.
dnsmasq will also discover SLAAC DNS entries from DHCPv4
clients MAC, and confirm with a ping at least renew.
Long term TODO include improving use of dnsmasq relay
options for DHCPv4 and DHCPv6 in parallel. It would also
be possible to preconfigure DHCP-PD in host-with-options
records for fixed infrastructure.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
[Jo-Philipp Wich: emit proper IPv6 hostid format in dhcp-host directive]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
ref commit 612e2276b4
ref commit ec63e3bf13
'option add_local_hostname' scripted implementation statically assigns
this host in auto generated host file at init. If IFUP or other signals
do not occur, then address changes are not tracked. The script doesn't
apply all the addresses at an interface. This may make logs obscure.
The script only puts the bare host name (maybe not FQDN) in host file,
but if '--exapandhosts' is enabled, then /etc/hosts entries will be
suffixed, and "127.0.0.1 localhost" becomes "localhost.lan".
dnsmasq provides an option to perform this function, but it is rather
greedy. '--interface-name=<name>,<iface>' will assign the name to all
IP on the specified interface (except link local). This is a useful
feature, but some setups depend on the original restrictive behavior.
'option add_local_fqdn' is added to enhance the feature set, but
if not entered or empty string, then it will default to original
option and behavior. This new option has a few settings. At each
increased setting the most detailed name becomes the PTR record:
0 - same as add_local_hostname 0 or disabled
1 - same as add_local_hostname 1
2 - assigns the bare host name to all IP w/ --dnsmasq-interface
3 - assigns the FQDN and host to all IP w/ --dnsmasq-interface
4 - assigns <iface>.<host>.<domain> and above w/ --dnsmasq-nterface
'option add_wan_fqdn' is added to run the same procedure on
inferred WAN intefaces. If an interface has 'config dhcp' and
'option ignore 1' set, then it is considered WAN. The original
option would only run on DHCP serving interfaces.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Use ubus process signalling instead of 'kill pidof dnsmasq' for
SIGHUP signalling to dnsmasq when ntp says time is valid.
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
This causes problem when a FQDN is configured in /etc/config/system. The
domain name will appear twice in reverse DNS.
Next to that, there seems to be a bug in dnsmasq. From the manual page:
--interface-name=<name>,<interface>[/4|/6]
Return a DNS record associating the name with the primary address
on the given interface. This flag specifies an A or AAAA record for the
given name in the same way as an /etc/hosts line, except that the address
is not constant, but taken from the given interface. The interface may be
followed by "/4" or "/6" to specify that only IPv4 or IPv6 addresses
of the interface should be used. If the interface is down, not configured
or non-existent, an empty record is returned. The matching PTR record is
also created, mapping the interface address to the name. More than one name
may be associated with an interface address by repeating the flag; in that
case the first instance is used for the reverse address-to-name mapping.
It does not just create an A/AAAA record for the primary address, it creates
one for all addresses. And what is worse, it seems to actually resolve to the
non-primary address first. This is quite annoying when you use floating IP
addresses (e.g. VRRP), because when the floating IP is on the other device,
SSH failes due to incorrect entry in the known hosts file.
I know that this is not a common setup, but it would be nice if there was an
option to restore the previous behaviour, rather than just forcing this new
feature on everybody.
Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
'add_local_hostname' previous implementation may drop some addresses.
Soft addition of IP6 addresses may not cause a reload or restart event.
dnsmasq '--interface-name' robustly applies DNS to all addresses per
interface (except fe80::/10).
Change UCI 'add_local_hostname' to expand during each interface assignement
during add_dhcp().
Assign '<iface>.<host>.<domain>' as true name (reflexive A, AAAA, and PTR).
Assign '<host>.<domain>' and '<host>' as convinience aliases (no PTR, not
technically CNAME).
This is accomplished with the '--interface-name' order, first is PTR.
We could also assign each <ip4/6>.<iface>.<host>.<domain> to the respective
dual stack on the interface.
That seemed excessive so it was skipped (/4 or /6 suffix to the interface).
Add UCI 'add_wan_hostname' similar to 'add_local_hostname' function for
external WAN.
WAN IP4 are less often named by the ISP and rarely WAN IP6 due to complexity.
For logs, LuCI connection graph, and other uses assigning a WAN name is desired.
'add_local_hostname' only applies with DHCP and 'add_wam_hostname' only applies
without DHCP. Common residential users will want to set both options TRUE.
Businesses will probably have global DNS, static IP, and 'add_wan_hostname' FALSE.
Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>
Add DHCPv6 matching by DHCP Unique Identifier (RFC-3315) in addition to
existing MAC-address (RFC-6939). The latter is not widely supported yet.
Signed-off-by: Arjen de Korte <build+lede@de-korte.org>
add possibility to set the facility to which dnsmasq will send syslog entries, i.e. set it to '/dev/null' to mute dnsmasq output at all.
Signed-off-by: Dirk Brenken dev@brenken.org
The SIGHUP also got sent to the reload script making it bail out
with an error
Revert "dnsmasq: reload config if host name is modified"
This reverts commit 854459a2f9.
Reported-by: Hans Dedecker <dedeckeh@gmail.com>
Signed-off-by: John Crispin <john@phrozen.org>
Let dnsmasq read all hosts files in /tmp/hosts directory by specifying
/tmp/hosts as argument of --addn-host
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Correct splitting the 32-bit 'hostid' value to two 16-bit hexadecimal
values. Previously, the lower 16-bit value was truncated to an 8-bit
value, which would result in hostid values 100 and 200 both to be set
to [::0:0] instead of [::0:100] and [::0:200] respectively.
Signed-off-by: Arjen de Korte <build+lede@de-korte.org>
If the hostname in /etc/config/system is modified the dnsmasq will not
reread the update host file under /tmp/hosts/dhcp.$cfg.
Signed-off-by: Florian Eckert <Eckert.Florian@googlemail.com>
Adds the mac address of the DNS requestor to DNS queries which
are forwarded upstream and can be used to do filtering by the
upstream servers. This only works if the requestor is on the
same subnet as the dnsmasq server
The addmac parameter can hold the following values:
0 : mac address is not added
1 : mac address is added in binary format
base64 : mac address is added base64 encoded
text: : mac address is added in human readable format
as hex and colons
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Adds support in uci for configuring multiple dnsmasq instances via
multiple dnsmasq sections.
The uci sections host, boot, mac, tag, vendorclass, userclass,
circuitid, ... will refer to a dnsmasq instance via the instance
parameter defined in the section; if the instance parameter is
not specified backwards compatibility is preserved.
Start/Stopping a dnsmasq instance can be achieved by passing the
dnsmasq instance name as argument to start/stop via the init script.
Multiple dnsmasq instances is usefull in scenarios where you want to
bind a dnsmasq instance to an interface in order to isolate networks.
This patch is a rework of a multiple dnsmasq instance patch by Daniel Dickinson
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Match sections allow to set a tag specified by the option networkid if the client
sends an option and optionally the option value specified by the match option.
The force option will convert the dhcp-option to force-dhcp-option if set to 1 in
the dnsmasq config if options are specified in the dhcp_option option.
config match
option networkid tag
option match 12,myhost
option force 1
list dhcp_option '3,192.168.1.1'
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Regression introduced by 3481d0d dnsmasq: run as dedicated UID/GID
dnsmasq is unable to remove its own pidfile as /var/run/dnsmasq is owned
by root and now dnsmasq runs as dnsmasq:dnsmasq. Change directory
ownership to match.
dnsmasq initially starts as root, creates the pidfile, then drops to
requested non-root user. Until this fix dnsmasq had insufficient
privilege to remove its own pidfile.
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
multiple invocation of dnsmasq script (e.g. by procd and hotplugd)
might cause procd to restart dnsmasq with an incomplete config file.
Config file generation might take quite a long time on larger configs
due ubus calls for each listening interface...
Signed-off-by: Ulrich Weber <ulrich.weber@riverbed.com>
Change dnsmasq's dnssec time check handling to use time validity
indicated by ntpd rather than maintaining a cross boot/upgrade
/etc/dnsmasq.time timestamp file. This saves flash device wear.
If ntpd client is configured in uci and you're using dnssec, then
dnsmasq will not check dnssec timestamp validity until ntpd hotplug
indicates sync via a stratum change. The ntpd hotplug leaves a status
flag file to indicate to dnsmasq.init that time is valid and that it
should now start in 'check dnssec timestamp valid' mode.
If ntpd client is not configured and you're using dnssec, then it is
presumed you're using an alternate time sync mechanism and that time is
correct, thus dnsmasq checks dnssec timestamps are valid from 1st start.
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
V2 - stratum & step ntp changes indicate time is valid
V3 - on initial flag file step signal dnsmasq with SIGHUP if running
V4 - only accept step ntp changes. Accepting both stratum & step could
result in unpleasant script race conditions
V5 - Actually only accepting stratum is the correct thing to do after
further testing
V6 - improve handling of non busybox ntpd
if sysntpd not executable
dnsmasq checks dnssec timestamps
else
sysntp script disabled - look for timestamp file - allows external mechanism to use hotplug flag file
sysntp script enabled & uci ntp enabled - look for timestamp file
sysntp script enabled & uci ntp disabled - dnsmasq checks dnssec
timestamps
fi
Add support for hostid dhcp config entry to dnsmasq. This allows
specification of dhcpv6 hostid suffix and works in the same way as
odhcpd.
Entries in auto generated dnsmasq.conf should conform to:
dhcp-host=mm:mm:mm:mm:mm:mm,IPv4addr,[::V6su:ffix],hostname
example based on sample config/dhcp entry:
config host
option name 'Kermit'
option mac 'E0:3F:49:A1:D4:AA'
option ip '192.168.235.4'
option hostid '4'
dhcp-host=E0:3F:49:A1:D4:AA,192.168.235.4,[::0:4],Kermit
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
By default dnsmasq uses random ports for outbound dns queries;
when the maxport UCI option is specified the ports used will
always be smaller than the specified value.
This is usefull for systems behind firewalls.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Instead of making assumptions about the leasefile and resolv file make sure
we use what the user configures, but fall back to defaults if no configuration
is specified
Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>
conditionally save dnsmasq.time across sysupgrade
dnsmasq uses /etc/dnsmasq.time as record of the last known good
system time to aid its validation of dnssec timestamps. dnsmasq
updates the timestamp on process start/stop once it considers the system
time as valid. The timestamp file should be preserved across system
upgrade but should not be included as part of normal configuration
backups to prevent restores corrupting the current timestamp.
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
conditionally save dnsmasq.time across sysupgrade
dnsmasq uses /etc/dnsmasq.time as record of the last known good
system time to aid its validation of dnssec timestamps. dnsmasq
updates the timestamp on process start/stop once it considers the system
time as valid. The timestamp file should be preserved across system
upgrade but should not be included as part of normal configuration
backups to prevent restores corrupting the current timestamp.
Running dnsmasq in a dedicated user/group allows matching its outgoing
traffic more easily using iptables' owner match.
Add UID/GID to the package metadata and append the user/group
parameters to the init script.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 49252
Parameter allows to enable/disable static leases; by default the value is 1
to keep backwards compatibility
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 49187
Enable setting a host-specific lease time for static hosts.
The new option is called "leasetime" and the format is similar
as for the default lease time: e.g. 12h, 3d, infinite
Default lease time is used for all hosts for which there is
no host-specific definition.
The option is added to /etc/config/dhcp for the selected hosts:
config host
option name 'Nexus'
option mac 'd8:50:66:55:59:7c'
option ip '192.168.1.245'
option leasetime '2h'
It gets appended to /var/etc/dnsmasq.conf like this:
dhcp-host=d8:50:66:55:59:7c,192.168.1.245,Nexus,2h
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
SVN-Revision: 48801
Commit 6a7e56b adds support for adding local hostname for own lan ula adress
but if ula prefix is not specified results into an invalid config (address=/OpenWrt.lan/1)
causing dnsmasq not to start up.
Use lanaddr6 when adding local hostname as the lan ula address is constructed based on the
UCI parameters ip6hint and ip6ifaceid and thus not always ula prefix suffixed with 1
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 48495
By default dnsmasq uses random ports for outbound dns queries;
when the minport UCI option is specified the ports used will
always be larger than the specified value.
This is usefull for systems behind firewalls.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 48244
By default dnsmasq sends an ICMP echo request before allocating
an IP address to a host; the uci option noping allows to disable
this check.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 47974
Changed option nonwildcard from --bind-interfaces into --bind-dynamic.
With this, Dnsmasq binds the address of individual interfaces, allowing multiple
dnsmasq instances, but if new interfaces or addresses appear, it automatically
listens on those. This makes dynamically created interfaces work in the same way as
the default, but allows also use of other DNS-servers (like Named) at the same time
on diffirent interfaces where Dnsmasq is NOT configured, whereas with
--bind-interfaces will still reserve every interface even if not used and thus
disallowing use of any other DNS-program even on unused interfaces.
Tested-by: Vaasa Hacklab <info@vaasa.hacklab.fi>
Signed-off-by: Sami Olmari <sami@olmari.fi>
SVN-Revision: 47953
Add the option "--all-servers" which forces dnsmasq to send all
queries to all servers and then take the first answer.
Signed-off-by: Andréas Gustafsson <gurgalof@gmail.com>
SVN-Revision: 47857
When enabled the dnsmasq DHCP server allocates the IP addresses sequentially
starting from the lowest available IP address.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 46211
This patch backports the option --tftp-no-fail to dnsmasq and prevents the
service from aborting if the specified TFTP root directory is not available;
this might be the case if TFTP files are located on external media that might
occasionally not be present at startup.
Signed-off-by: Stefan Tomanek <stefan.tomanek+openwrt@wertarbyte.de>
SVN-Revision: 45213
DNSMASQ has the ability to provide a menu to a pxeboot system, using
the --pxe-prompt and --pxe-service configuration options. The current
init.d script converting the "dhcp" file to "dnsmasq.conf" does not
find these options, but they are supported. This patch thus enables
the options.
Signed-off-by: Derek LaHousse <dlahouss@mtu.edu>
SVN-Revision: 44747
The --dhcp-boot option of dnsmasq does not require servername and serveraddress
arguments if the builtin tftp server is used.
Signed-off-by: Stefan Tomanek <stefan.tomanek+openwrt@wertarbyte.de>
SVN-Revision: 44744
The --quiet-dhcp setting increases privacy by omitting DHCP lease logs including MAC addresses.
Signed-off-by: Lars Kruse <devel@sumpfralle.de>
SVN-Revision: 44006
Use an if/else statement to cover the two different syntaxes. Add
comments explaining what the end results should look like.
This patch should not change the script's output.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
SVN-Revision: 42320
An entry like this in /etc/config/dhcp:
config 'host'
option 'name' 'pc2'
option 'ip' '192.168.100.56'
option 'dns' '1'
results in a /tmp/hosts/dhcp entry that looks like this:
192.168.100.56 .lan
Obviously it should say "pc2.lan".
This happens because $name is set to "" in order to support the MAC-less
syntax: "--dhcp-host=lap,192.168.0.199". Fix this by reordering the
operations. Also, refuse to add a DNS entry if the hostname or IP is
missing.
Fixes#17683
Reported-by: Kostas Papadopoulos <kpapad75@travelguide.gr>
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
SVN-Revision: 42319
LuCI creates "domain" UCI config sections, which the dnsmasq init file
then, currently, translates into "address" config lines. This is not
the correct usage of "address" (see r36943), and also causes rDNS
records to not be created. This patches dnsmasq.init to utilize the
additional hosts file introduced in r40799 for such domain names,
resolving both issues.
Signed-off-by: Tyler Fenby <tylerf@securecominc.com>
SVN-Revision: 42318
