1*de1e4e89SAndroid Build Coastguard Worker /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*de1e4e89SAndroid Build Coastguard Worker #ifndef __LINUX_IF_ADDR_H 3*de1e4e89SAndroid Build Coastguard Worker #define __LINUX_IF_ADDR_H 4*de1e4e89SAndroid Build Coastguard Worker 5*de1e4e89SAndroid Build Coastguard Worker #include <linux/types.h> 6*de1e4e89SAndroid Build Coastguard Worker #include <linux/netlink.h> 7*de1e4e89SAndroid Build Coastguard Worker 8*de1e4e89SAndroid Build Coastguard Worker struct ifaddrmsg { 9*de1e4e89SAndroid Build Coastguard Worker __u8 ifa_family; 10*de1e4e89SAndroid Build Coastguard Worker __u8 ifa_prefixlen; /* The prefix length */ 11*de1e4e89SAndroid Build Coastguard Worker __u8 ifa_flags; /* Flags */ 12*de1e4e89SAndroid Build Coastguard Worker __u8 ifa_scope; /* Address scope */ 13*de1e4e89SAndroid Build Coastguard Worker __u32 ifa_index; /* Link index */ 14*de1e4e89SAndroid Build Coastguard Worker }; 15*de1e4e89SAndroid Build Coastguard Worker 16*de1e4e89SAndroid Build Coastguard Worker /* 17*de1e4e89SAndroid Build Coastguard Worker * Important comment: 18*de1e4e89SAndroid Build Coastguard Worker * IFA_ADDRESS is prefix address, rather than local interface address. 19*de1e4e89SAndroid Build Coastguard Worker * It makes no difference for normally configured broadcast interfaces, 20*de1e4e89SAndroid Build Coastguard Worker * but for point-to-point IFA_ADDRESS is DESTINATION address, 21*de1e4e89SAndroid Build Coastguard Worker * local address is supplied in IFA_LOCAL attribute. 22*de1e4e89SAndroid Build Coastguard Worker * 23*de1e4e89SAndroid Build Coastguard Worker * IFA_FLAGS is a u32 attribute that extends the u8 field ifa_flags. 24*de1e4e89SAndroid Build Coastguard Worker * If present, the value from struct ifaddrmsg will be ignored. 25*de1e4e89SAndroid Build Coastguard Worker */ 26*de1e4e89SAndroid Build Coastguard Worker enum { 27*de1e4e89SAndroid Build Coastguard Worker IFA_UNSPEC, 28*de1e4e89SAndroid Build Coastguard Worker IFA_ADDRESS, 29*de1e4e89SAndroid Build Coastguard Worker IFA_LOCAL, 30*de1e4e89SAndroid Build Coastguard Worker IFA_LABEL, 31*de1e4e89SAndroid Build Coastguard Worker IFA_BROADCAST, 32*de1e4e89SAndroid Build Coastguard Worker IFA_ANYCAST, 33*de1e4e89SAndroid Build Coastguard Worker IFA_CACHEINFO, 34*de1e4e89SAndroid Build Coastguard Worker IFA_MULTICAST, 35*de1e4e89SAndroid Build Coastguard Worker IFA_FLAGS, 36*de1e4e89SAndroid Build Coastguard Worker __IFA_MAX, 37*de1e4e89SAndroid Build Coastguard Worker }; 38*de1e4e89SAndroid Build Coastguard Worker 39*de1e4e89SAndroid Build Coastguard Worker #define IFA_MAX (__IFA_MAX - 1) 40*de1e4e89SAndroid Build Coastguard Worker 41*de1e4e89SAndroid Build Coastguard Worker /* ifa_flags */ 42*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_SECONDARY 0x01 43*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_TEMPORARY IFA_F_SECONDARY 44*de1e4e89SAndroid Build Coastguard Worker 45*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_NODAD 0x02 46*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_OPTIMISTIC 0x04 47*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_DADFAILED 0x08 48*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_HOMEADDRESS 0x10 49*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_DEPRECATED 0x20 50*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_TENTATIVE 0x40 51*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_PERMANENT 0x80 52*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_MANAGETEMPADDR 0x100 53*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_NOPREFIXROUTE 0x200 54*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_MCAUTOJOIN 0x400 55*de1e4e89SAndroid Build Coastguard Worker #define IFA_F_STABLE_PRIVACY 0x800 56*de1e4e89SAndroid Build Coastguard Worker 57*de1e4e89SAndroid Build Coastguard Worker struct ifa_cacheinfo { 58*de1e4e89SAndroid Build Coastguard Worker __u32 ifa_prefered; 59*de1e4e89SAndroid Build Coastguard Worker __u32 ifa_valid; 60*de1e4e89SAndroid Build Coastguard Worker __u32 cstamp; /* created timestamp, hundredths of seconds */ 61*de1e4e89SAndroid Build Coastguard Worker __u32 tstamp; /* updated timestamp, hundredths of seconds */ 62*de1e4e89SAndroid Build Coastguard Worker }; 63*de1e4e89SAndroid Build Coastguard Worker 64*de1e4e89SAndroid Build Coastguard Worker /* backwards compatibility for userspace */ 65*de1e4e89SAndroid Build Coastguard Worker #define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) 66*de1e4e89SAndroid Build Coastguard Worker #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) 67*de1e4e89SAndroid Build Coastguard Worker 68*de1e4e89SAndroid Build Coastguard Worker #endif 69