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200 lines
4.1 KiB
200 lines
4.1 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _UAPI_IPV6_H |
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#define _UAPI_IPV6_H |
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#include <linux/libc-compat.h> |
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#include <linux/types.h> |
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#include <linux/in6.h> |
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#include <asm/byteorder.h> |
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/* The latest drafts declared increase in minimal mtu up to 1280. */ |
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#define IPV6_MIN_MTU 1280 |
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/* |
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* Advanced API |
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* source interface/address selection, source routing, etc... |
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* *under construction* |
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*/ |
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#if __UAPI_DEF_IN6_PKTINFO |
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struct in6_pktinfo { |
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struct in6_addr ipi6_addr; |
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int ipi6_ifindex; |
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}; |
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#endif |
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#if __UAPI_DEF_IP6_MTUINFO |
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struct ip6_mtuinfo { |
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struct sockaddr_in6 ip6m_addr; |
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__u32 ip6m_mtu; |
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}; |
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#endif |
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struct in6_ifreq { |
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struct in6_addr ifr6_addr; |
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__u32 ifr6_prefixlen; |
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int ifr6_ifindex; |
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}; |
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#define IPV6_SRCRT_STRICT 0x01 /* Deprecated; will be removed */ |
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#define IPV6_SRCRT_TYPE_0 0 /* Deprecated; will be removed */ |
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#define IPV6_SRCRT_TYPE_2 2 /* IPv6 type 2 Routing Header */ |
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#define IPV6_SRCRT_TYPE_3 3 /* RPL Segment Routing with IPv6 */ |
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#define IPV6_SRCRT_TYPE_4 4 /* Segment Routing with IPv6 */ |
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/* |
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* routing header |
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*/ |
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struct ipv6_rt_hdr { |
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__u8 nexthdr; |
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__u8 hdrlen; |
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__u8 type; |
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__u8 segments_left; |
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/* |
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* type specific data |
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* variable length field |
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*/ |
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}; |
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struct ipv6_opt_hdr { |
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__u8 nexthdr; |
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__u8 hdrlen; |
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/* |
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* TLV encoded option data follows. |
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*/ |
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} __attribute__((packed)); /* required for some archs */ |
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#define ipv6_destopt_hdr ipv6_opt_hdr |
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#define ipv6_hopopt_hdr ipv6_opt_hdr |
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/* Router Alert option values (RFC2711) */ |
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#define IPV6_OPT_ROUTERALERT_MLD 0x0000 /* MLD(RFC2710) */ |
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/* |
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* routing header type 0 (used in cmsghdr struct) |
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*/ |
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struct rt0_hdr { |
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struct ipv6_rt_hdr rt_hdr; |
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__u32 reserved; |
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struct in6_addr addr[0]; |
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#define rt0_type rt_hdr.type |
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}; |
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/* |
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* routing header type 2 |
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*/ |
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struct rt2_hdr { |
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struct ipv6_rt_hdr rt_hdr; |
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__u32 reserved; |
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struct in6_addr addr; |
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#define rt2_type rt_hdr.type |
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}; |
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/* |
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* home address option in destination options header |
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*/ |
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struct ipv6_destopt_hao { |
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__u8 type; |
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__u8 length; |
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struct in6_addr addr; |
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} __attribute__((packed)); |
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/* |
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* IPv6 fixed header |
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* |
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* BEWARE, it is incorrect. The first 4 bits of flow_lbl |
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* are glued to priority now, forming "class". |
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*/ |
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struct ipv6hdr { |
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#if defined(__LITTLE_ENDIAN_BITFIELD) |
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__u8 priority:4, |
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version:4; |
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#elif defined(__BIG_ENDIAN_BITFIELD) |
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__u8 version:4, |
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priority:4; |
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#else |
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#error "Please fix <asm/byteorder.h>" |
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#endif |
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__u8 flow_lbl[3]; |
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__be16 payload_len; |
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__u8 nexthdr; |
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__u8 hop_limit; |
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struct in6_addr saddr; |
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struct in6_addr daddr; |
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}; |
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/* index values for the variables in ipv6_devconf */ |
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enum { |
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DEVCONF_FORWARDING = 0, |
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DEVCONF_HOPLIMIT, |
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DEVCONF_MTU6, |
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DEVCONF_ACCEPT_RA, |
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DEVCONF_ACCEPT_REDIRECTS, |
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DEVCONF_AUTOCONF, |
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DEVCONF_DAD_TRANSMITS, |
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DEVCONF_RTR_SOLICITS, |
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DEVCONF_RTR_SOLICIT_INTERVAL, |
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DEVCONF_RTR_SOLICIT_DELAY, |
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DEVCONF_USE_TEMPADDR, |
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DEVCONF_TEMP_VALID_LFT, |
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DEVCONF_TEMP_PREFERED_LFT, |
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DEVCONF_REGEN_MAX_RETRY, |
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DEVCONF_MAX_DESYNC_FACTOR, |
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DEVCONF_MAX_ADDRESSES, |
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DEVCONF_FORCE_MLD_VERSION, |
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DEVCONF_ACCEPT_RA_DEFRTR, |
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DEVCONF_ACCEPT_RA_PINFO, |
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DEVCONF_ACCEPT_RA_RTR_PREF, |
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DEVCONF_RTR_PROBE_INTERVAL, |
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DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN, |
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DEVCONF_PROXY_NDP, |
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DEVCONF_OPTIMISTIC_DAD, |
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DEVCONF_ACCEPT_SOURCE_ROUTE, |
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DEVCONF_MC_FORWARDING, |
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DEVCONF_DISABLE_IPV6, |
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DEVCONF_ACCEPT_DAD, |
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DEVCONF_FORCE_TLLAO, |
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DEVCONF_NDISC_NOTIFY, |
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DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL, |
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DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL, |
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DEVCONF_SUPPRESS_FRAG_NDISC, |
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DEVCONF_ACCEPT_RA_FROM_LOCAL, |
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DEVCONF_USE_OPTIMISTIC, |
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DEVCONF_ACCEPT_RA_MTU, |
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DEVCONF_STABLE_SECRET, |
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DEVCONF_USE_OIF_ADDRS_ONLY, |
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DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT, |
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DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN, |
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DEVCONF_DROP_UNICAST_IN_L2_MULTICAST, |
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DEVCONF_DROP_UNSOLICITED_NA, |
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DEVCONF_KEEP_ADDR_ON_DOWN, |
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DEVCONF_RTR_SOLICIT_MAX_INTERVAL, |
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DEVCONF_SEG6_ENABLED, |
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DEVCONF_SEG6_REQUIRE_HMAC, |
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DEVCONF_ENHANCED_DAD, |
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DEVCONF_ADDR_GEN_MODE, |
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DEVCONF_DISABLE_POLICY, |
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DEVCONF_ACCEPT_RA_RT_INFO_MIN_PLEN, |
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DEVCONF_NDISC_TCLASS, |
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DEVCONF_RPL_SEG_ENABLED, |
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DEVCONF_RA_DEFRTR_METRIC, |
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DEVCONF_IOAM6_ENABLED, |
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DEVCONF_IOAM6_ID, |
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DEVCONF_IOAM6_ID_WIDE, |
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DEVCONF_MAX |
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}; |
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#endif /* _UAPI_IPV6_H */
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