networkd: netdev - add ipvlan support

Makefile.am

@@ -5481,6 +5481,7 @@ libsystemd_networkd_core_la_SOURCES = \
 	src/network/networkd-netdev-vxlan.h \
 	src/network/networkd-netdev-vlan.h \
 	src/network/networkd-netdev-macvlan.h \
+	src/network/networkd-netdev-ipvlan.h \
 	src/network/networkd-netdev-dummy.h \
 	src/network/networkd-netdev-tuntap.h \
 	src/network/networkd-netdev-bond.h \
@@ -5491,6 +5492,7 @@ libsystemd_networkd_core_la_SOURCES = \
 	src/network/networkd-netdev-vxlan.c \
 	src/network/networkd-netdev-vlan.c \
 	src/network/networkd-netdev-macvlan.c \
+	src/network/networkd-netdev-ipvlan.c \
 	src/network/networkd-netdev-dummy.c \
 	src/network/networkd-netdev-tuntap.c \
 	src/network/networkd-netdev-bond.c \

configure.ac

@@ -322,6 +322,7 @@ AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at, setns, getrandom, renamea
 ]])
 
 AC_CHECK_DECLS([IFLA_MACVLAN_FLAGS,
+                IFLA_IPVLAN_MODE,
                 IFLA_VTI_REMOTE,
                 IFLA_PHYS_PORT_ID,
                 IFLA_BOND_AD_INFO,

man/systemd.netdev.xml

@@ -163,7 +163,8 @@
                                         <listitem>
                                                 <para>The netdev kind. Currently, <literal>bridge</literal>,
                                                 <literal>bond</literal>, <literal>vlan</literal>,
-                                                <literal>macvlan</literal>, <literal>vxlan</literal>,
+                                                <literal>macvlan</literal>,
+                                                <literal>ipvlan</literal>, <literal>vxlan</literal>,
                                                 <literal>ipip</literal>, <literal>gre</literal>,
                                                 <literal>sit</literal>, <literal>vti</literal>,
                                                 <literal>veth</literal>, <literal>tun</literal>,
@@ -233,6 +234,26 @@
                         </variablelist>
 
         </refsect1>
+
+        <refsect1>
+                <title>[IPVLAN] Section Options</title>
+
+                        <para>The <literal>[IPVLAN]</literal> section only applies for netdevs of kind
+                        <literal>ipvlan</literal>, and accepts the following key:</para>
+
+                        <variablelist class='network-directives'>
+                                <varlistentry>
+                                        <term><varname>Mode=</varname></term>
+                                        <listitem>
+                                                <para>The IPVLAN mode to use. The supported options are
+                                                <literal>L2</literal> and <literal>L3</literal>.
+                                                </para>
+                                        </listitem>
+                                </varlistentry>
+                        </variablelist>
+
+        </refsect1>
+
         <refsect1>
                 <title>[VXLAN] Section Options</title>
                         <para>The <literal>[VXLAN]</literal> section only applies for netdevs of kind

src/libsystemd/sd-rtnl/rtnl-types.c

@@ -31,6 +31,7 @@
 #include <linux/if.h>
 
 #include <linux/ip.h>
+#include <linux/if_link.h>
 #include <linux/if_tunnel.h>
 
 #include "macro.h"
@@ -45,6 +46,9 @@ static const NLType rtnl_link_info_data_veth_types[VETH_INFO_MAX + 1] = {
         [VETH_INFO_PEER]  = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
 };
 
+static const NLType rtnl_link_info_data_ipvlan_types[IFLA_IPVLAN_MAX + 1] = {
+        [IFLA_IPVLAN_MODE]  = { .type = NLA_U16 },
+};
 
 static const NLType rtnl_link_info_data_macvlan_types[IFLA_MACVLAN_MAX + 1] = {
         [IFLA_MACVLAN_MODE]  = { .type = NLA_U32 },
@@ -157,6 +161,7 @@ static const char* const nl_union_link_info_data_table[_NL_UNION_LINK_INFO_DATA_
         [NL_UNION_LINK_INFO_DATA_VETH] = "veth",
         [NL_UNION_LINK_INFO_DATA_DUMMY] = "dummy",
         [NL_UNION_LINK_INFO_DATA_MACVLAN] = "macvlan",
+        [NL_UNION_LINK_INFO_DATA_IPVLAN] = "ipvlan",
         [NL_UNION_LINK_INFO_DATA_VXLAN] = "vxlan",
         [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = "ipip",
         [NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = "gre",
@@ -177,6 +182,8 @@ static const NLTypeSystem rtnl_link_info_data_type_systems[_NL_UNION_LINK_INFO_D
                                                   .types = rtnl_link_info_data_veth_types },
         [NL_UNION_LINK_INFO_DATA_MACVLAN] =     { .max = ELEMENTSOF(rtnl_link_info_data_macvlan_types) - 1,
                                                   .types = rtnl_link_info_data_macvlan_types },
+        [NL_UNION_LINK_INFO_DATA_IPVLAN] =      { .max = ELEMENTSOF(rtnl_link_info_data_ipvlan_types) - 1,
+                                                  .types = rtnl_link_info_data_ipvlan_types },
         [NL_UNION_LINK_INFO_DATA_VXLAN] =       { .max = ELEMENTSOF(rtnl_link_info_data_vxlan_types) - 1,
                                                   .types = rtnl_link_info_data_vxlan_types },
         [NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_iptun_types) - 1,

src/libsystemd/sd-rtnl/rtnl-types.h

@@ -71,6 +71,7 @@ typedef enum NLUnionLinkInfoData {
         NL_UNION_LINK_INFO_DATA_VETH,
         NL_UNION_LINK_INFO_DATA_DUMMY,
         NL_UNION_LINK_INFO_DATA_MACVLAN,
+        NL_UNION_LINK_INFO_DATA_IPVLAN,
         NL_UNION_LINK_INFO_DATA_VXLAN,
         NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL,
         NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL,

src/network/networkd-netdev-gperf.gperf

@@ -29,6 +29,7 @@ NetDev.MTUBytes,          config_parse_iec_size,              0,
 NetDev.MACAddress,        config_parse_hwaddr,                0,                             offsetof(NetDev, mac)
 VLAN.Id,                  config_parse_uint64,                0,                             offsetof(VLan, id)
 MACVLAN.Mode,             config_parse_macvlan_mode,          0,                             offsetof(MacVlan, mode)
+IPVLAN.Mode,              config_parse_ipvlan_mode,           0,                             offsetof(IPVlan, mode)
 Tunnel.Local,             config_parse_tunnel_address,        0,                             offsetof(Tunnel, local)
 Tunnel.Remote,            config_parse_tunnel_address,        0,                             offsetof(Tunnel, remote)
 Tunnel.TOS,               config_parse_unsigned,              0,                             offsetof(Tunnel, tos)

src/network/networkd-netdev-ipvlan.c

@@ -0,0 +1,75 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013-2015 Tom Gundersen <teg@jklm.no>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <net/if.h>
+#include <linux/if_link.h>
+
+#include "networkd-netdev-ipvlan.h"
+#include "network-internal.h"
+#include "conf-parser.h"
+#include "list.h"
+
+static const char* const ipvlan_mode_table[_NETDEV_IPVLAN_MODE_MAX] = {
+        [NETDEV_IPVLAN_MODE_L2] = "L2",
+        [NETDEV_IPVLAN_MODE_L3] = "L3",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(ipvlan_mode, IPVlanMode);
+DEFINE_CONFIG_PARSE_ENUM(config_parse_ipvlan_mode, ipvlan_mode, IPVlanMode, "Failed to parse ipvlan mode");
+
+static int netdev_ipvlan_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *req) {
+        IPVlan *m = IPVLAN(netdev);
+        int r;
+
+        assert(netdev);
+        assert(m);
+        assert(link);
+        assert(netdev->ifname);
+
+        if (m->mode != _NETDEV_IPVLAN_MODE_INVALID) {
+        r = sd_rtnl_message_append_u16(req, IFLA_IPVLAN_MODE, m->mode);
+        if (r < 0) {
+                log_netdev_error(netdev,
+                                 "Could not append IFLA_IPVLAN_MODE attribute: %s",
+                                 strerror(-r));
+                        return r;
+                }
+        }
+
+        return 0;
+}
+
+static void ipvlan_init(NetDev *n) {
+        IPVlan *m = IPVLAN(n);
+
+        assert(n);
+        assert(m);
+
+        m->mode = _NETDEV_IPVLAN_MODE_INVALID;
+}
+
+const NetDevVTable ipvlan_vtable = {
+        .object_size = sizeof(IPVlan),
+        .init = ipvlan_init,
+        .sections = "Match\0NetDev\0IPVLAN\0",
+        .fill_message_create = netdev_ipvlan_fill_message_create,
+        .create_type = NETDEV_CREATE_STACKED,
+};

src/network/networkd-netdev-ipvlan.h

@@ -0,0 +1,47 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2014-2015 Tom Gundersen <teg@jklm.no>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#pragma once
+
+typedef struct IPVlan IPVlan;
+
+#include "missing.h"
+#include "networkd-netdev.h"
+
+typedef enum IPVlanMode {
+        NETDEV_IPVLAN_MODE_L2 = IPVLAN_MODE_L2,
+        NETDEV_IPVLAN_MODE_L3 = IPVLAN_MODE_L3,
+        _NETDEV_IPVLAN_MODE_MAX,
+        _NETDEV_IPVLAN_MODE_INVALID = -1
+} IPVlanMode;
+
+struct IPVlan {
+        NetDev meta;
+
+        IPVlanMode mode;
+};
+
+extern const NetDevVTable ipvlan_vtable;
+
+const char *ipvlan_mode_to_string(IPVlanMode d) _const_;
+IPVlanMode ipvlan_mode_from_string(const char *d) _pure_;
+
+int config_parse_ipvlan_mode(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);

src/network/networkd-netdev.c

@@ -35,6 +35,7 @@ const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = {
         [NETDEV_KIND_BOND] = &bond_vtable,
         [NETDEV_KIND_VLAN] = &vlan_vtable,
         [NETDEV_KIND_MACVLAN] = &macvlan_vtable,
+        [NETDEV_KIND_IPVLAN] = &ipvlan_vtable,
         [NETDEV_KIND_VXLAN] = &vxlan_vtable,
         [NETDEV_KIND_IPIP] = &ipip_vtable,
         [NETDEV_KIND_GRE] = &gre_vtable,
@@ -51,6 +52,7 @@ static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
         [NETDEV_KIND_BOND] = "bond",
         [NETDEV_KIND_VLAN] = "vlan",
         [NETDEV_KIND_MACVLAN] = "macvlan",
+        [NETDEV_KIND_IPVLAN] = "ipvlan",
         [NETDEV_KIND_VXLAN] = "vxlan",
         [NETDEV_KIND_IPIP] = "ipip",
         [NETDEV_KIND_GRE] = "gre",

src/network/networkd-netdev.h

@@ -43,6 +43,7 @@ typedef enum NetDevKind {
         NETDEV_KIND_BOND,
         NETDEV_KIND_VLAN,
         NETDEV_KIND_MACVLAN,
+        NETDEV_KIND_IPVLAN,
         NETDEV_KIND_VXLAN,
         NETDEV_KIND_IPIP,
         NETDEV_KIND_GRE,
@@ -100,6 +101,7 @@ struct NetDev {
 #include "networkd-netdev-bond.h"
 #include "networkd-netdev-vlan.h"
 #include "networkd-netdev-macvlan.h"
+#include "networkd-netdev-ipvlan.h"
 #include "networkd-netdev-vxlan.h"
 #include "networkd-netdev-veth.h"
 #include "networkd-netdev-tunnel.h"
@@ -157,6 +159,7 @@ DEFINE_CAST(BRIDGE, Bridge);
 DEFINE_CAST(BOND, Bond);
 DEFINE_CAST(VLAN, VLan);
 DEFINE_CAST(MACVLAN, MacVlan);
+DEFINE_CAST(IPVLAN, IPVlan);
 DEFINE_CAST(VXLAN, VxLan);
 DEFINE_CAST(IPIP, Tunnel);
 DEFINE_CAST(GRE, Tunnel);

src/network/networkd-network-gperf.gperf

@@ -31,6 +31,7 @@ Network.Bridge,              config_parse_netdev,                0,
 Network.Bond,                config_parse_netdev,                0,                             offsetof(Network, bond)
 Network.VLAN,                config_parse_netdev,                0,                             0
 Network.MACVLAN,             config_parse_netdev,                0,                             0
+Network.IPVLAN,              config_parse_netdev,                0,                             0
 Network.VXLAN,               config_parse_netdev,                0,                             0
 Network.Tunnel,              config_parse_tunnel,                0,                             0
 Network.DHCP,                config_parse_dhcp,                  0,                             offsetof(Network, dhcp)

src/network/networkd-network.c

@@ -362,6 +362,7 @@ int config_parse_netdev(const char *unit,
                 break;
         case NETDEV_KIND_VLAN:
         case NETDEV_KIND_MACVLAN:
+        case NETDEV_KIND_IPVLAN:
         case NETDEV_KIND_VXLAN:
                 r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
                 if (r < 0) {

src/network/test-network-tables.c

@@ -21,6 +21,7 @@ int main(int argc, char **argv) {
         test_table(nl_union_link_info_data, NL_UNION_LINK_INFO_DATA);
 
         test_table_sparse(macvlan_mode, NETDEV_MACVLAN_MODE);
+        test_table_sparse(ipvlan_mode, NETDEV_IPVLAN_MODE);
         test_table_sparse(dhcp6_message_type, DHCP6_MESSAGE);
 
         return EXIT_SUCCESS;

src/shared/missing.h

@@ -441,6 +441,18 @@ static inline int setns(int fd, int nstype) {
 #define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
 #endif
 
+#if !HAVE_DECL_IFLA_IPVLAN_MODE
+#define IFLA_IPVLAN_UNSPEC 0
+#define IFLA_IPVLAN_MODE 1
+#define __IFLA_IPVLAN_MAX 2
+
+#define IFLA_IPVLAN_MAX (__IFLA_IPVLAN_MAX - 1)
+
+#define IPVLAN_MODE_L2 0
+#define IPVLAN_MODE_L3 1
+#define IPVLAN_MAX 2
+#endif
+
 #if !HAVE_DECL_IFLA_VTI_REMOTE
 #define IFLA_VTI_UNSPEC 0
 #define IFLA_VTI_LINK 1