1 DBus support must be enabled at compile-time and run-time. Ensure
2 that src/config.h contains the line
6 and that /etc/dnsmasq.conf contains the line
10 Because dnsmasq can operate stand-alone from the DBus, and may need to provide
11 service before the dbus daemon is available, it will continue to run
12 if the DBus connection is not available at startup. The DBus will be polled
13 every 250ms until a connection is established. Start of polling and final
14 connection establishment are both logged. When dnsmasq establishes a
15 connection to the dbus, it sends the signal "Up". Anything controlling
16 the server settings in dnsmasq should re-invoke the SetServers method
17 (q.v.) when it sees this signal. This allows dnsmasq to be restarted
18 and avoids startup races with the provider of nameserver information.
21 Dnsmasq provides one service on the DBus: uk.org.thekelleys.dnsmasq
22 and a single object: /uk/org/thekelleys/dnsmasq
23 The name of the service may be changed by giving an argument to --enable-dbus.
28 Methods are of the form
30 uk.org.thekelleys.<method>
32 Available methods are:
36 Returns a string containing the version of dnsmasq running.
40 Returns nothing. Clears the domain name cache and re-reads
41 /etc/hosts. The same as sending dnsmasq a HUP signal.
45 Takes boolean, sets or resets the --filterwin2k option.
49 Takes boolean, sets or resets the --bogus-priv option.
53 Returns nothing. Takes a set of arguments representing the new
54 upstream DNS servers to be used by dnsmasq. IPv4 addresses are
55 represented as a UINT32 (in network byte order) and IPv6 addresses
56 are represented as sixteen BYTEs (since there is no UINT128 type).
57 Each server address may be followed by one or more STRINGS, which are
58 the domains for which the preceding server should be used.
67 --server=<address1> --server=<address2>
72 STRING "somedomain.com"
76 --server=<address1> --server=/somedomain.com/<address2>
80 STRING "somedomain.com"
82 STRING "anotherdomain.com"
83 STRING "thirddomain.com"
88 --server=/somedomain.com/<address2>
89 --server=/anotherdomain.com/thirddomain.com/<address3>
91 Am IPv4 address of 0.0.0.0 is interpreted as "no address, local only",
99 --local=/local.domain/
102 Each call to SetServers completely replaces the set of servers
103 specified by via the DBus, but it leaves any servers specified via the
104 command line or /etc/dnsmasq.conf or /etc/resolv.conf alone.
109 This function is more flexible and the SetServers function, in that it can
110 handle address scoping, port numbers, and is easier for clients to use.
112 Returns nothing. Takes a set of arguments representing the new
113 upstream DNS servers to be used by dnsmasq. All addresses (both IPv4 and IPv6)
114 are represented as STRINGS. Each server address may be followed by one or more
115 STRINGS, which are the domains for which the preceding server should be used.
117 This function takes an array of STRING arrays, where each inner array represents
118 a set of DNS servers and domains for which those servers may be used. Each
119 string represents a list of upstream DNS servers first, and domains second.
120 Mixing of domains and servers within a the string array is not allowed.
125 ["1.2.3.4", "foobar.com"],
126 ["1003:1234:abcd::1%eth0", "eng.mycorp.com", "lab.mycorp.com"]
131 --server=/foobar.com/1.2.3.4 \
132 --server=/eng.mycorp.com/lab.mycorp.com/1003:1234:abcd::1%eth0
134 An IPv4 address of 0.0.0.0 is interpreted as "no address, local only",
137 [ ["0.0.0.0", "local.domain"] ]
141 --local=/local.domain/
144 Each call to SetServersEx completely replaces the set of servers
145 specified by via the DBus, but it leaves any servers specified via the
146 command line or /etc/dnsmasq.conf or /etc/resolv.conf alone.
152 Yes another variation for setting DNS servers, with the capability of
153 SetServersEx, but without using arrays of arrays, which are not
154 sendable with dbus-send. The arguments are an array of strings which
155 are identical to the equivalent arguments --server, so the example
156 for SetServersEx is represented as
159 "/foobar.com/1.2.3.4"
160 "/eng.mycorp.com/lab.mycorp.com/1003:1234:abcd::1%eth0"
166 (Only available if dnsmasq compiled with HAVE_LOOP)
168 Return an array of strings, each string is the IP address of an upstream
169 server which has been found to loop queries back to this dnsmasq instance, and
170 it therefore not being used.
175 Returns nothing. Adds or updates a DHCP or DHCPv6 lease to the internal lease
176 database, as if a client requested and obtained a lease.
178 If a lease for the IPv4 or IPv6 address already exist, it is overwritten.
180 Note that this function will trigger the DhcpLeaseAdded or DhcpLeaseUpdated
181 D-Bus signal and will run the configured DHCP lease script accordingly.
183 This function takes many arguments which are the lease parameters:
184 - A string with the textual representation of the IPv4 or IPv6 address of the
189 "1003:1234:abcd::1%eth0"
192 - A string representing the hardware address of the client, using the same
193 format as the one used in the lease database.
198 "06-00:20:e0:3b:13:af" (token ring)
200 - The hostname of the client, as an array of bytes (so there is no problem
201 with non-ASCII character encoding). May be empty.
203 Example (for "hostname.or.fqdn"):
204 [104, 111, 115, 116, 110, 97, 109, 101, 46, 111, 114, 46, 102, 113, 100, 110]
206 - The client identifier (IPv4) or DUID (IPv6) as an array of bytes. May be
212 [0, 3, 0, 1, 0, 35, 69, 103, 137, 171]
213 DHCPv4 client identifier:
214 [255, 12, 34, 56, 78, 0, 1, 0, 1, 29, 9, 99, 190, 35, 69, 103, 137, 171]
216 - The duration of the lease, in seconds. If the lease is updated, then
217 the duration replaces the previous duration.
223 - The IAID (Identity association identifier) of the DHCPv6 lease, as a network
224 byte-order unsigned integer. For DHCPv4 leases, this must be set to 0.
230 - A boolean which, if true, indicates that the DHCPv6 lease is for a temporary
231 address (IA_TA). If false, the DHCPv6 lease is for a non-temporary address
232 (IA_NA). For DHCPv4 leases, this must be set to false.
237 Returns nothing. Removes a DHCP or DHCPv6 lease to the internal lease
238 database, as if a client sent a release message to abandon a lease.
240 This function takes only one parameter: the text representation of the
241 IPv4 or IPv6 address of the lease to remove.
243 Note that this function will trigger the DhcpLeaseRemoved signal and the
244 configured DHCP lease script will be run with the "del" action.
251 If dnsmasq's DHCP server is active, it will send signals over DBUS whenever
252 the DHCP lease database changes. Think of these signals as transactions on
253 a database with the IP address acting as the primary key.
255 Signals are of the form:
257 uk.org.thekelleys.<signal>
259 and their parameters are:
261 STRING "192.168.1.115"
262 STRING "01:23:45:67:89:ab"
263 STRING "hostname.or.fqdn"
266 Available signals are:
271 This signal is emitted when a DHCP lease for a given IP address is created.
276 This signal is emitted when a DHCP lease for a given IP address is deleted.
281 This signal is emitted when a DHCP lease for a given IP address is updated.