mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-28 00:19:36 +00:00
8066e388be
fib_rule, ip6_tunnel, and a whole lot of if_* headers lack the customary _UAPI in the header guard. Without it YNL build can't protect from in tree and system headers both getting included. YNL doesn't need most of these but it's annoying to have to fix them one by one. Note that header installation strips this _UAPI prefix so this should result in no change to the end user. Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250416200840.1338195-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI__LINUX_IF_ADDR_H
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#define _UAPI__LINUX_IF_ADDR_H
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#include <linux/types.h>
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#include <linux/netlink.h>
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struct ifaddrmsg {
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__u8 ifa_family;
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__u8 ifa_prefixlen; /* The prefix length */
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__u8 ifa_flags; /* Flags */
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__u8 ifa_scope; /* Address scope */
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__u32 ifa_index; /* Link index */
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};
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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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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_RT_PRIORITY, /* u32, priority/metric for prefix route */
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IFA_TARGET_NETNSID,
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IFA_PROTO, /* u8, address protocol */
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__IFA_MAX,
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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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struct ifa_cacheinfo {
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__u32 ifa_prefered;
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__u32 ifa_valid;
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__u32 cstamp; /* created timestamp, hundredths of seconds */
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__u32 tstamp; /* updated timestamp, hundredths of seconds */
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};
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/* backwards compatibility for userspace */
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#ifndef __KERNEL__
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#define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
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#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
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#endif
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/* ifa_proto */
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#define IFAPROT_UNSPEC 0
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#define IFAPROT_KERNEL_LO 1 /* loopback */
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#define IFAPROT_KERNEL_RA 2 /* set by kernel from router announcement */
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#define IFAPROT_KERNEL_LL 3 /* link-local set by kernel */
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#endif
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