113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
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/****************************************************************************
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* include/netpacket/if_addr.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NETPACKET_IF_ADDR_H
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#define __INCLUDE_NETPACKET_IF_ADDR_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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#include <netpacket/netlink.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define IFA_MAX (__IFA_MAX - 1)
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/* ifa_flags */
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#define IFA_F_SECONDARY 0x01
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#define IFA_F_TEMPORARY IFA_F_SECONDARY
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#define IFA_F_NODAD 0x02
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#define IFA_F_OPTIMISTIC 0x04
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#define IFA_F_DADFAILED 0x08
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#define IFA_F_HOMEADDRESS 0x10
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#define IFA_F_DEPRECATED 0x20
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#define IFA_F_TENTATIVE 0x40
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#define IFA_F_PERMANENT 0x80
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#define IFA_F_MANAGETEMPADDR 0x100
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#define IFA_F_NOPREFIXROUTE 0x200
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#define IFA_F_MCAUTOJOIN 0x400
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#define IFA_F_STABLE_PRIVACY 0x800
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/* backwards compatibility for userspace */
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#define IFA_RTA(r) ((FAR struct rtattr *)(((FAR char *)(r)) + \
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NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
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#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg))
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/* RTM_NEWADDR, RTM_DELADDR, RTM_GETADDR
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*
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* Add, remove or receive information about an IP address associated with
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* an interface. These messages contain an ifaddrmsg structure, optionally
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* followed by rtattr routing attributes.
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*/
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struct ifaddrmsg
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{
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uint8_t ifa_family; /* Address type: AF_INET or AF_INET6 */
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uint8_t ifa_prefixlen; /* Prefix length of address */
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uint8_t ifa_flags; /* Address flags. See IFA_F_* definitions */
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uint8_t ifa_scope; /* Address scope */
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int32_t ifa_index; /* Unique interface index */
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};
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/* Important comment:
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* IFA_ADDRESS is prefix address, rather than local interface address.
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* It makes no difference for normally configured broadcast interfaces,
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* but for point-to-point IFA_ADDRESS is DESTINATION address,
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* local address is supplied in IFA_LOCAL attribute.
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*
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* IFA_FLAGS is a u32 attribute that extends the u8 field ifa_flags.
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* If present, the value from struct ifaddrmsg will be ignored.
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*/
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enum
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{
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IFA_UNSPEC,
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IFA_ADDRESS,
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IFA_LOCAL,
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IFA_LABEL,
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IFA_BROADCAST,
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IFA_ANYCAST,
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IFA_CACHEINFO,
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IFA_MULTICAST,
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IFA_FLAGS,
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__IFA_MAX,
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};
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struct ifa_cacheinfo
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{
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uint32_t ifa_prefered;
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uint32_t ifa_valid;
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uint32_t cstamp; /* created timestamp, hundredths of seconds */
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uint32_t tstamp; /* updated timestamp, hundredths of seconds */
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};
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#endif /* __INCLUDE_NETPACKET_IF_ADDR_H */
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