diff options
| -rw-r--r-- | man/systemd.network.xml | 51 | ||||
| -rw-r--r-- | src/basic/missing.h | 4 | ||||
| -rw-r--r-- | src/network/networkd-address.c | 59 | ||||
| -rw-r--r-- | src/network/networkd-address.h | 6 | ||||
| -rw-r--r-- | src/network/networkd-network-gperf.gperf | 5 |
5 files changed, 125 insertions, 0 deletions
diff --git a/man/systemd.network.xml b/man/systemd.network.xml index 0af927db19..2fb4907634 100644 --- a/man/systemd.network.xml +++ b/man/systemd.network.xml @@ -695,6 +695,57 @@ which is then configured to use them explicitly.</para> </listitem> </varlistentry> + <varlistentry> + <term><varname>HomeAddress=</varname></term> + <listitem> + <para>Takes a boolean argument. Designates this address the "home address" as defined in + <ulink url="https://tools.ietf.org/html/rfc6275">RFC 6275</ulink>. + Supported only on IPv6. Defaults to false.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><varname>DuplicateAddressDetection=</varname></term> + <listitem> + <para>Takes a boolean argument. Do not perform Duplicate Address Detection + <ulink url="https://tools.ietf.org/html/rfc4862">RFC 4862</ulink> when adding this address. + Supported only on IPv6. Defaults to false.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><varname>ManageTemporaryAddress=</varname></term> + <listitem> + <para>Takes a boolean argument. If true the kernel manage temporary addresses created + from this one as template on behalf of Privacy Extensions + <ulink url="https://tools.ietf.org/html/rfc3041">RFC 3041</ulink>. For this to become + active, the use_tempaddr sysctl setting has to be set to a value greater than zero. + The given address needs to have a prefix length of 64. This flag allows to use privacy + extensions in a manually configured network, just like if stateless auto-configuration + was active. Defaults to false. </para> + </listitem> + </varlistentry> + <varlistentry> + <term><varname>PrefixRoute=</varname></term> + <listitem> + <para>Takes a boolean argument. When adding or modifying an IPv6 address, the userspace + application needs a way to suppress adding a prefix route. This is for example relevant + together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf generated addresses, + but depending on on-link, no route for the prefix should be added. Defaults to false.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><varname>AutoJoin=</varname></term> + <listitem> + <para>Takes a boolean argument. Joining multicast group on ethernet level via + <command>ip maddr</command> command would not work if we have an Ethernet switch that does + IGMP snooping since the switch would not replicate multicast packets on ports that did not + have IGMP reports for the multicast addresses. Linux vxlan interfaces created via + <command>ip link add vxlan</command> or networkd's netdev kind vxlan have the group option + that enables then to do the required join. By extending ip address command with option + <literal>autojoin</literal> we can get similar functionality for openvswitch (OVS) vxlan + interfaces as well as other tunneling mechanisms that need to receive multicast traffic. + Defaults to <literal>no</literal>.</para> + </listitem> + </varlistentry> </variablelist> </refsect1> diff --git a/src/basic/missing.h b/src/basic/missing.h index 13ff51cd35..4a78269e33 100644 --- a/src/basic/missing.h +++ b/src/basic/missing.h @@ -1052,6 +1052,10 @@ typedef int32_t key_serial_t; #define ETHERTYPE_LLDP 0x88cc #endif +#ifndef IFA_F_MCAUTOJOIN +#define IFA_F_MCAUTOJOIN 0x400 +#endif + #endif #include "missing_syscall.h" diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c index 5498e352d8..ed52d5e42d 100644 --- a/src/network/networkd-address.c +++ b/src/network/networkd-address.c @@ -571,6 +571,21 @@ int address_configure( address->flags |= IFA_F_PERMANENT; + if (address->home_address) + address->flags |= IFA_F_HOMEADDRESS; + + if (address->duplicate_address_detection) + address->flags |= IFA_F_NODAD; + + if (address->manage_temporary_address) + address->flags |= IFA_F_MANAGETEMPADDR; + + if (address->prefix_route) + address->flags |= IFA_F_NOPREFIXROUTE; + + if (address->autojoin) + address->flags |= IFA_F_MCAUTOJOIN; + r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff)); if (r < 0) return log_error_errno(r, "Could not set flags: %m"); @@ -856,6 +871,50 @@ int config_parse_lifetime(const char *unit, return 0; } +int config_parse_address_flags(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; + 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; + + r = parse_boolean(rvalue); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address flag, ignoring: %s", rvalue); + return 0; + } + + if (streq(lvalue, "HomeAddress")) + n->home_address = r; + else if (streq(lvalue, "DuplicateAddressDetection")) + n->duplicate_address_detection = r; + else if (streq(lvalue, "ManageTemporaryAddress")) + n->manage_temporary_address = r; + else if (streq(lvalue, "PrefixRoute")) + n->prefix_route = r; + else if (streq(lvalue, "AutoJoin")) + n->autojoin = r; + + 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 03c4bea7c6..bc3b4fc7f3 100644 --- a/src/network/networkd-address.h +++ b/src/network/networkd-address.h @@ -53,6 +53,11 @@ struct Address { union in_addr_union in_addr_peer; bool ip_masquerade_done:1; + bool duplicate_address_detection; + bool manage_temporary_address; + bool home_address; + bool prefix_route; + bool autojoin; LIST_FIELDS(Address, addresses); }; @@ -77,3 +82,4 @@ int config_parse_address(const char *unit, const char *filename, unsigned line, 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); +int config_parse_address_flags(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 62779c7c48..5587961b9f 100644 --- a/src/network/networkd-network-gperf.gperf +++ b/src/network/networkd-network-gperf.gperf @@ -70,6 +70,11 @@ Address.Peer, config_parse_address, Address.Broadcast, config_parse_broadcast, 0, 0 Address.Label, config_parse_label, 0, 0 Address.PreferredLifetime, config_parse_lifetime, 0, 0 +Address.HomeAddress, config_parse_address_flags, 0, 0 +Address.DuplicateAddressDetection, config_parse_address_flags, 0, 0 +Address.ManageTemporaryAddress, config_parse_address_flags, 0, 0 +Address.PrefixRoute, config_parse_address_flags, 0, 0 +Address.AutoJoin, config_parse_address_flags, 0, 0 Route.Gateway, config_parse_gateway, 0, 0 Route.Destination, config_parse_destination, 0, 0 Route.Source, config_parse_destination, 0, 0 |