diff options
| -rw-r--r-- | man/systemd.network.xml | 12 | ||||
| -rw-r--r-- | src/network/networkd-address.c | 48 | ||||
| -rw-r--r-- | src/network/networkd-address.h | 1 | ||||
| -rw-r--r-- | src/network/networkd-network-gperf.gperf | 1 |
4 files changed, 62 insertions, 0 deletions
diff --git a/man/systemd.network.xml b/man/systemd.network.xml index 1ed7b67086..5e287faa6e 100644 --- a/man/systemd.network.xml +++ b/man/systemd.network.xml @@ -652,6 +652,18 @@ <para>An address label.</para> </listitem> </varlistentry> + <varlistentry> + <term><varname>PreferredLifetime=</varname></term> + <listitem> + <para>Allows the default "preferred lifetime" of the address to be overridden. + Only three settings are accepted: <literal>forever</literal> or <literal>infinity</literal> + which is the default and means that the address never expires, and <literal>0</literal> which means + that the address is considered immediately "expired" and will not be used, + unless explicitly requested. A setting of PreferredLifetime=0 is useful for + addresses which are added to be used only by a specific application, + which is then configured to use them explicitly.</para> + </listitem> + </varlistentry> </variablelist> </refsect1> diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c index 429319da6b..8b52a1f742 100644 --- a/src/network/networkd-address.c +++ b/src/network/networkd-address.c @@ -774,6 +774,54 @@ int config_parse_label(const char *unit, return 0; } +int config_parse_lifetime(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + Network *network = userdata; + _cleanup_address_free_ Address *n = NULL; + unsigned k; + int r; + + assert(filename); + assert(section); + assert(lvalue); + assert(rvalue); + assert(data); + + r = address_new_static(network, section_line, &n); + if (r < 0) + return r; + + if (STR_IN_SET(rvalue, "forever", "infinity")) { + n->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME; + n = NULL; + + return 0; + } + + r = safe_atou(rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse PreferredLifetime, ignoring: %s", rvalue); + return 0; + } + + if (k != 0) + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid PreferredLifetime value, ignoring: %d", k); + else { + n->cinfo.ifa_prefered = k; + n = NULL; + } + + return 0; +} + bool address_is_ready(const Address *a) { assert(a); diff --git a/src/network/networkd-address.h b/src/network/networkd-address.h index 338f6eb9a2..3c81978fb1 100644 --- a/src/network/networkd-address.h +++ b/src/network/networkd-address.h @@ -74,3 +74,4 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free); int config_parse_address(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); int config_parse_broadcast(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); int config_parse_label(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); +int config_parse_lifetime(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf index 471e300fde..550b5e5240 100644 --- a/src/network/networkd-network-gperf.gperf +++ b/src/network/networkd-network-gperf.gperf @@ -65,6 +65,7 @@ Address.Address, config_parse_address, Address.Peer, config_parse_address, 0, 0 Address.Broadcast, config_parse_broadcast, 0, 0 Address.Label, config_parse_label, 0, 0 +Address.PreferredLifetime, config_parse_lifetime, 0, 0 Route.Gateway, config_parse_gateway, 0, 0 Route.Destination, config_parse_destination, 0, 0 Route.Source, config_parse_destination, 0, 0 |