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|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2014 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 <stdint.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/in6.h>
#include <linux/veth.h>
#include <linux/if_bridge.h>
#include <linux/if_addr.h>
#include <linux/if.h>
#include <linux/ip.h>
#include <linux/if_link.h>
#include <linux/if_tunnel.h>
#include "macro.h"
#include "util.h"
#include "rtnl-types.h"
#include "missing.h"
static const NLTypeSystem rtnl_link_type_system;
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 },
[IFLA_MACVLAN_FLAGS] = { .type = NLA_U16 },
};
static const NLType rtnl_link_info_data_bridge_types[IFLA_BRIDGE_MAX + 1] = {
[IFLA_BRIDGE_FLAGS] = { .type = NLA_U16 },
[IFLA_BRIDGE_MODE] = { .type = NLA_U16 },
/*
[IFLA_BRIDGE_VLAN_INFO] = { .type = NLA_BINARY,
.len = sizeof(struct bridge_vlan_info), },
*/
};
static const NLType rtnl_link_info_data_vlan_types[IFLA_VLAN_MAX + 1] = {
[IFLA_VLAN_ID] = { .type = NLA_U16 },
/*
[IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
[IFLA_VLAN_EGRESS_QOS] = { .type = NLA_NESTED },
[IFLA_VLAN_INGRESS_QOS] = { .type = NLA_NESTED },
*/
[IFLA_VLAN_PROTOCOL] = { .type = NLA_U16 },
};
static const NLType rtnl_link_info_data_vxlan_types[IFLA_VXLAN_MAX+1] = {
[IFLA_VXLAN_ID] = { .type = NLA_U32 },
[IFLA_VXLAN_GROUP] = {.type = NLA_IN_ADDR },
[IFLA_VXLAN_LINK] = { .type = NLA_U32 },
[IFLA_VXLAN_LOCAL] = { .type = NLA_U32},
[IFLA_VXLAN_TTL] = { .type = NLA_U8 },
[IFLA_VXLAN_TOS] = { .type = NLA_U8 },
[IFLA_VXLAN_LEARNING] = { .type = NLA_U8 },
[IFLA_VXLAN_AGEING] = { .type = NLA_U32 },
[IFLA_VXLAN_LIMIT] = { .type = NLA_U32 },
[IFLA_VXLAN_PORT_RANGE] = { .type = NLA_U32},
[IFLA_VXLAN_PROXY] = { .type = NLA_U8 },
[IFLA_VXLAN_RSC] = { .type = NLA_U8 },
[IFLA_VXLAN_L2MISS] = { .type = NLA_U8 },
[IFLA_VXLAN_L3MISS] = { .type = NLA_U8 },
};
static const NLType rtnl_link_info_data_bond_types[IFLA_BOND_MAX + 1] = {
[IFLA_BOND_MODE] = { .type = NLA_U8 },
[IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
[IFLA_BOND_MIIMON] = { .type = NLA_U32 },
[IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
[IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
[IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
[IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
[IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
[IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
[IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
[IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
[IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
[IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
[IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
[IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
[IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
[IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
[IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
[IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
[IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
[IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
[IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
[IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
};
static const NLType rtnl_link_info_data_iptun_types[IFLA_IPTUN_MAX + 1] = {
[IFLA_IPTUN_LINK] = { .type = NLA_U32 },
[IFLA_IPTUN_LOCAL] = { .type = NLA_IN_ADDR },
[IFLA_IPTUN_REMOTE] = { .type = NLA_IN_ADDR },
[IFLA_IPTUN_TTL] = { .type = NLA_U8 },
[IFLA_IPTUN_TOS] = { .type = NLA_U8 },
[IFLA_IPTUN_PMTUDISC] = { .type = NLA_U8 },
[IFLA_IPTUN_FLAGS] = { .type = NLA_U16 },
[IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
[IFLA_IPTUN_6RD_PREFIX] = { .type = NLA_IN_ADDR },
[IFLA_IPTUN_6RD_RELAY_PREFIX] = { .type = NLA_U32 },
[IFLA_IPTUN_6RD_PREFIXLEN] = { .type = NLA_U16 },
[IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NLA_U16 },
};
static const NLType rtnl_link_info_data_ipgre_types[IFLA_GRE_MAX + 1] = {
[IFLA_GRE_LINK] = { .type = NLA_U32 },
[IFLA_GRE_IFLAGS] = { .type = NLA_U16 },
[IFLA_GRE_OFLAGS] = { .type = NLA_U16 },
[IFLA_GRE_IKEY] = { .type = NLA_U32 },
[IFLA_GRE_OKEY] = { .type = NLA_U32 },
[IFLA_GRE_LOCAL] = { .type = NLA_IN_ADDR },
[IFLA_GRE_REMOTE] = { .type = NLA_IN_ADDR },
[IFLA_GRE_TTL] = { .type = NLA_U8 },
[IFLA_GRE_TOS] = { .type = NLA_U8 },
[IFLA_GRE_PMTUDISC] = { .type = NLA_U8 },
};
static const NLType rtnl_link_info_data_ipvti_types[IFLA_VTI_MAX + 1] = {
[IFLA_VTI_LINK] = { .type = NLA_U32 },
[IFLA_VTI_IKEY] = { .type = NLA_U32 },
[IFLA_VTI_OKEY] = { .type = NLA_U32 },
[IFLA_VTI_LOCAL] = { .type = NLA_IN_ADDR },
[IFLA_VTI_REMOTE] = { .type = NLA_IN_ADDR },
};
static const NLType rtnl_link_info_data_ip6tnl_types[IFLA_IPTUN_MAX + 1] = {
[IFLA_IPTUN_LINK] = { .type = NLA_U32 },
[IFLA_IPTUN_LOCAL] = { .type = NLA_IN_ADDR },
[IFLA_IPTUN_REMOTE] = { .type = NLA_IN_ADDR },
[IFLA_IPTUN_TTL] = { .type = NLA_U8 },
[IFLA_IPTUN_FLAGS] = { .type = NLA_U32 },
[IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
[IFLA_IPTUN_ENCAP_LIMIT] = { .type = NLA_U8 },
[IFLA_IPTUN_FLOWINFO] = { .type = NLA_U32},
};
/* these strings must match the .kind entries in the kernel */
static const char* const nl_union_link_info_data_table[_NL_UNION_LINK_INFO_DATA_MAX] = {
[NL_UNION_LINK_INFO_DATA_BOND] = "bond",
[NL_UNION_LINK_INFO_DATA_BRIDGE] = "bridge",
[NL_UNION_LINK_INFO_DATA_VLAN] = "vlan",
[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",
[NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = "gretap",
[NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = "ip6gre",
[NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = "ip6gretap",
[NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = "sit",
[NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = "vti",
[NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = "ip6tnl",
};
DEFINE_STRING_TABLE_LOOKUP(nl_union_link_info_data, NLUnionLinkInfoData);
static const NLTypeSystem rtnl_link_info_data_type_systems[_NL_UNION_LINK_INFO_DATA_MAX] = {
[NL_UNION_LINK_INFO_DATA_BOND] = { .max = ELEMENTSOF(rtnl_link_info_data_bond_types) - 1,
.types = rtnl_link_info_data_bond_types },
[NL_UNION_LINK_INFO_DATA_BRIDGE] = { .max = ELEMENTSOF(rtnl_link_info_data_bridge_types) - 1,
.types = rtnl_link_info_data_bridge_types },
[NL_UNION_LINK_INFO_DATA_VLAN] = { .max = ELEMENTSOF(rtnl_link_info_data_vlan_types) - 1,
.types = rtnl_link_info_data_vlan_types },
[NL_UNION_LINK_INFO_DATA_VETH] = { .max = ELEMENTSOF(rtnl_link_info_data_veth_types) - 1,
.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,
.types = rtnl_link_info_data_iptun_types },
[NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
.types = rtnl_link_info_data_ipgre_types },
[NL_UNION_LINK_INFO_DATA_IPGRETAP_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
.types = rtnl_link_info_data_ipgre_types },
[NL_UNION_LINK_INFO_DATA_IP6GRE_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
.types = rtnl_link_info_data_ipgre_types },
[NL_UNION_LINK_INFO_DATA_IP6GRETAP_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipgre_types) - 1,
.types = rtnl_link_info_data_ipgre_types },
[NL_UNION_LINK_INFO_DATA_SIT_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_iptun_types) - 1,
.types = rtnl_link_info_data_iptun_types },
[NL_UNION_LINK_INFO_DATA_VTI_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ipvti_types) - 1,
.types = rtnl_link_info_data_ipvti_types },
[NL_UNION_LINK_INFO_DATA_IP6TNL_TUNNEL] = { .max = ELEMENTSOF(rtnl_link_info_data_ip6tnl_types) - 1,
.types = rtnl_link_info_data_ip6tnl_types },
};
static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
.num = _NL_UNION_LINK_INFO_DATA_MAX,
.lookup = nl_union_link_info_data_from_string,
.type_systems = rtnl_link_info_data_type_systems,
.match_type = NL_MATCH_SIBLING,
.match = IFLA_INFO_KIND,
};
static const NLType rtnl_link_info_types[IFLA_INFO_MAX + 1] = {
[IFLA_INFO_KIND] = { .type = NLA_STRING },
[IFLA_INFO_DATA] = { .type = NLA_UNION, .type_system_union = &rtnl_link_info_data_type_system_union},
/*
[IFLA_INFO_XSTATS],
[IFLA_INFO_SLAVE_KIND] = { .type = NLA_STRING },
[IFLA_INFO_SLAVE_DATA] = { .type = NLA_NESTED },
*/
};
static const NLTypeSystem rtnl_link_info_type_system = {
.max = ELEMENTSOF(rtnl_link_info_types) - 1,
.types = rtnl_link_info_types,
};
static const struct NLType rtnl_prot_info_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
[IFLA_BRPORT_STATE] = { .type = NLA_U8 },
[IFLA_BRPORT_COST] = { .type = NLA_U32 },
[IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
[IFLA_BRPORT_MODE] = { .type = NLA_U8 },
[IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
[IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
[IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
[IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
};
static const NLTypeSystem rtnl_prot_info_type_systems[AF_MAX] = {
[AF_BRIDGE] = { .max = ELEMENTSOF(rtnl_prot_info_bridge_port_types) - 1,
.types = rtnl_prot_info_bridge_port_types },
};
static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
.num = AF_MAX,
.type_systems = rtnl_prot_info_type_systems,
.match_type = NL_MATCH_PROTOCOL,
};
static const struct NLType rtnl_af_spec_inet6_types[IFLA_INET6_MAX + 1] = {
[IFLA_INET6_FLAGS] = { .type = NLA_U32 },
/*
IFLA_INET6_CONF,
IFLA_INET6_STATS,
IFLA_INET6_MCAST,
IFLA_INET6_CACHEINFO,
IFLA_INET6_ICMP6STATS,
*/
[IFLA_INET6_TOKEN] = { .type = NLA_IN_ADDR },
[IFLA_INET6_ADDR_GEN_MODE] = { .type = NLA_U8 },
};
static const NLTypeSystem rtnl_af_spec_inet6_type_system = {
.max = ELEMENTSOF(rtnl_af_spec_inet6_types) - 1,
.types = rtnl_af_spec_inet6_types,
};
static const NLType rtnl_af_spec_types[AF_MAX + 1] = {
[AF_INET6] = { .type = NLA_NESTED, .type_system = &rtnl_af_spec_inet6_type_system },
};
static const NLTypeSystem rtnl_af_spec_type_system = {
.max = ELEMENTSOF(rtnl_af_spec_types) - 1,
.types = rtnl_af_spec_types,
};
static const NLType rtnl_link_types[IFLA_MAX + 1 ] = {
[IFLA_ADDRESS] = { .type = NLA_ETHER_ADDR, },
[IFLA_BROADCAST] = { .type = NLA_ETHER_ADDR, },
[IFLA_IFNAME] = { .type = NLA_STRING, .size = IFNAMSIZ - 1, },
[IFLA_MTU] = { .type = NLA_U32 },
[IFLA_LINK] = { .type = NLA_U32 },
/*
[IFLA_QDISC],
[IFLA_STATS],
[IFLA_COST],
[IFLA_PRIORITY],
*/
[IFLA_MASTER] = { .type = NLA_U32 },
/*
[IFLA_WIRELESS],
*/
[IFLA_PROTINFO] = { .type = NLA_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
[IFLA_TXQLEN] = { .type = NLA_U32 },
/*
[IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
*/
[IFLA_WEIGHT] = { .type = NLA_U32 },
[IFLA_OPERSTATE] = { .type = NLA_U8 },
[IFLA_LINKMODE] = { .type = NLA_U8 },
[IFLA_LINKINFO] = { .type = NLA_NESTED, .type_system = &rtnl_link_info_type_system },
[IFLA_NET_NS_PID] = { .type = NLA_U32 },
[IFLA_IFALIAS] = { .type = NLA_STRING, .size = IFALIASZ - 1 },
/*
[IFLA_NUM_VF],
[IFLA_VFINFO_LIST] = {. type = NLA_NESTED, },
[IFLA_STATS64],
[IFLA_VF_PORTS] = { .type = NLA_NESTED },
[IFLA_PORT_SELF] = { .type = NLA_NESTED },
*/
[IFLA_AF_SPEC] = { .type = NLA_NESTED, .type_system = &rtnl_af_spec_type_system },
/*
[IFLA_VF_PORTS],
[IFLA_PORT_SELF],
[IFLA_AF_SPEC],
*/
[IFLA_GROUP] = { .type = NLA_U32 },
[IFLA_NET_NS_FD] = { .type = NLA_U32 },
[IFLA_EXT_MASK] = { .type = NLA_U32 },
[IFLA_PROMISCUITY] = { .type = NLA_U32 },
[IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 },
[IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 },
[IFLA_CARRIER] = { .type = NLA_U8 },
/*
[IFLA_PHYS_PORT_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
*/
};
static const NLTypeSystem rtnl_link_type_system = {
.max = ELEMENTSOF(rtnl_link_types) - 1,
.types = rtnl_link_types,
};
static const NLType rtnl_address_types[IFA_MAX + 1] = {
[IFA_ADDRESS] = { .type = NLA_IN_ADDR },
[IFA_LOCAL] = { .type = NLA_IN_ADDR },
[IFA_LABEL] = { .type = NLA_STRING, .size = IFNAMSIZ - 1 },
[IFA_BROADCAST] = { .type = NLA_IN_ADDR }, /* 6? */
[IFA_CACHEINFO] = { .type = NLA_CACHE_INFO, .size = sizeof(struct ifa_cacheinfo) },
/*
[IFA_ANYCAST],
[IFA_MULTICAST],
[IFA_FLAGS] = { .type = NLA_U32 },
*/
};
static const NLTypeSystem rtnl_address_type_system = {
.max = ELEMENTSOF(rtnl_address_types) - 1,
.types = rtnl_address_types,
};
static const NLType rtnl_route_types[RTA_MAX + 1] = {
[RTA_DST] = { .type = NLA_IN_ADDR }, /* 6? */
[RTA_SRC] = { .type = NLA_IN_ADDR }, /* 6? */
[RTA_IIF] = { .type = NLA_U32 },
[RTA_OIF] = { .type = NLA_U32 },
[RTA_GATEWAY] = { .type = NLA_IN_ADDR },
[RTA_PRIORITY] = { .type = NLA_U32 },
[RTA_PREFSRC] = { .type = NLA_IN_ADDR }, /* 6? */
/*
[RTA_METRICS] = { .type = NLA_NESTED },
[RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
*/
[RTA_FLOW] = { .type = NLA_U32 }, /* 6? */
/*
RTA_CACHEINFO,
RTA_TABLE,
RTA_MARK,
RTA_MFC_STATS,
*/
};
static const NLTypeSystem rtnl_route_type_system = {
.max = ELEMENTSOF(rtnl_route_types) - 1,
.types = rtnl_route_types,
};
static const NLType rtnl_neigh_types[NDA_MAX + 1] = {
[NDA_DST] = { .type = NLA_IN_ADDR },
[NDA_LLADDR] = { .type = NLA_ETHER_ADDR },
[NDA_CACHEINFO] = { .type = NLA_CACHE_INFO, .size = sizeof(struct nda_cacheinfo) },
[NDA_PROBES] = { .type = NLA_U32 },
[NDA_VLAN] = { .type = NLA_U16 },
[NDA_PORT] = { .type = NLA_U16 },
[NDA_VNI] = { .type = NLA_U32 },
[NDA_IFINDEX] = { .type = NLA_U32 },
};
static const NLTypeSystem rtnl_neigh_type_system = {
.max = ELEMENTSOF(rtnl_neigh_types) - 1,
.types = rtnl_neigh_types,
};
static const NLType rtnl_types[RTM_MAX + 1] = {
[NLMSG_DONE] = { .type = NLA_META, .size = 0 },
[NLMSG_ERROR] = { .type = NLA_META, .size = sizeof(struct nlmsgerr) },
[RTM_NEWLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
[RTM_DELLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
[RTM_GETLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
[RTM_SETLINK] = { .type = NLA_NESTED, .type_system = &rtnl_link_type_system, .size = sizeof(struct ifinfomsg) },
[RTM_NEWADDR] = { .type = NLA_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
[RTM_DELADDR] = { .type = NLA_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
[RTM_GETADDR] = { .type = NLA_NESTED, .type_system = &rtnl_address_type_system, .size = sizeof(struct ifaddrmsg) },
[RTM_NEWROUTE] = { .type = NLA_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
[RTM_DELROUTE] = { .type = NLA_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
[RTM_GETROUTE] = { .type = NLA_NESTED, .type_system = &rtnl_route_type_system, .size = sizeof(struct rtmsg) },
[RTM_NEWNEIGH] = { .type = NLA_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
[RTM_DELNEIGH] = { .type = NLA_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
[RTM_GETNEIGH] = { .type = NLA_NESTED, .type_system = &rtnl_neigh_type_system, .size = sizeof(struct ndmsg) },
};
const NLTypeSystem rtnl_type_system = {
.max = ELEMENTSOF(rtnl_types) - 1,
.types = rtnl_types,
};
int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, uint16_t type) {
const NLType *nl_type;
assert(ret);
if (!type_system)
type_system = &rtnl_type_system;
assert(type_system->types);
if (type > type_system->max)
return -EOPNOTSUPP;
nl_type = &type_system->types[type];
if (nl_type->type == NLA_UNSPEC)
return -EOPNOTSUPP;
*ret = nl_type;
return 0;
}
int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type) {
const NLType *nl_type;
int r;
assert(ret);
r = type_system_get_type(type_system, &nl_type, type);
if (r < 0)
return r;
assert(nl_type->type == NLA_NESTED);
assert(nl_type->type_system);
*ret = nl_type->type_system;
return 0;
}
int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type) {
const NLType *nl_type;
int r;
assert(ret);
r = type_system_get_type(type_system, &nl_type, type);
if (r < 0)
return r;
assert(nl_type->type == NLA_UNION);
assert(nl_type->type_system_union);
*ret = nl_type->type_system_union;
return 0;
}
int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key) {
int type;
assert(type_system_union);
assert(type_system_union->match_type == NL_MATCH_SIBLING);
assert(type_system_union->lookup);
assert(type_system_union->type_systems);
assert(ret);
assert(key);
type = type_system_union->lookup(key);
if (type < 0)
return -EOPNOTSUPP;
assert(type < type_system_union->num);
*ret = &type_system_union->type_systems[type];
return 0;
}
int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
const NLTypeSystem *type_system;
assert(type_system_union);
assert(type_system_union->type_systems);
assert(type_system_union->match_type == NL_MATCH_PROTOCOL);
assert(ret);
if (protocol >= type_system_union->num)
return -EOPNOTSUPP;
type_system = &type_system_union->type_systems[protocol];
if (type_system->max == 0)
return -EOPNOTSUPP;
*ret = type_system;
return 0;
}
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