1 /* SPDX-License-Identifier: LGPL-2.1-or-later */ 2 #pragma once 3 4 /* linux/in6.h or netinet/in.h */ 5 #ifndef IPV6_UNICAST_IF 6 #define IPV6_UNICAST_IF 76 7 #endif 8 9 /* linux/in6.h or netinet/in.h */ 10 #ifndef IPV6_TRANSPARENT 11 #define IPV6_TRANSPARENT 75 12 #endif 13 14 /* Not exposed but defined at include/net/ip.h */ 15 #ifndef IPV4_MIN_MTU 16 #define IPV4_MIN_MTU 68 17 #endif 18 19 /* linux/ipv6.h */ 20 #ifndef IPV6_MIN_MTU 21 #define IPV6_MIN_MTU 1280 22 #endif 23 24 /* Note that LOOPBACK_IFINDEX is currently not exposed by the 25 * kernel/glibc, but hardcoded internally by the kernel. However, as 26 * it is exported to userspace indirectly via rtnetlink and the 27 * ioctls, and made use of widely we define it here too, in a way that 28 * is compatible with the kernel's internal definition. */ 29 #ifndef LOOPBACK_IFINDEX 30 #define LOOPBACK_IFINDEX 1 31 #endif 32 33 /* Not exposed yet. Similar values are defined in net/ethernet.h */ 34 #ifndef ETHERTYPE_LLDP 35 #define ETHERTYPE_LLDP 0x88cc 36 #endif 37 38 /* Not exposed but defined in linux/netdevice.h */ 39 #ifndef MAX_PHYS_ITEM_ID_LEN 40 #define MAX_PHYS_ITEM_ID_LEN 32 41 #endif 42 43 /* Not exposed but defined in include/net/bonding.h */ 44 #ifndef BOND_MAX_ARP_TARGETS 45 #define BOND_MAX_ARP_TARGETS 16 46 #endif 47 48 /* Not exposed but defined in include/linux/ieee80211.h */ 49 #ifndef IEEE80211_MAX_SSID_LEN 50 #define IEEE80211_MAX_SSID_LEN 32 51 #endif 52