| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| #pragma once |
| |
| /* linux/in6.h or netinet/in.h */ |
| #ifndef IPV6_UNICAST_IF |
| #define IPV6_UNICAST_IF 76 |
| #endif |
| |
| /* linux/in6.h or netinet/in.h */ |
| #ifndef IPV6_TRANSPARENT |
| #define IPV6_TRANSPARENT 75 |
| #endif |
| |
| /* Not exposed but defined at include/net/ip.h */ |
| #ifndef IPV4_MIN_MTU |
| #define IPV4_MIN_MTU 68 |
| #endif |
| |
| /* linux/ipv6.h */ |
| #ifndef IPV6_MIN_MTU |
| #define IPV6_MIN_MTU 1280 |
| #endif |
| |
| /* Note that LOOPBACK_IFINDEX is currently not exposed by the |
| * kernel/glibc, but hardcoded internally by the kernel. However, as |
| * it is exported to userspace indirectly via rtnetlink and the |
| * ioctls, and made use of widely we define it here too, in a way that |
| * is compatible with the kernel's internal definition. */ |
| #ifndef LOOPBACK_IFINDEX |
| #define LOOPBACK_IFINDEX 1 |
| #endif |
| |
| /* Not exposed yet. Similar values are defined in net/ethernet.h */ |
| #ifndef ETHERTYPE_LLDP |
| #define ETHERTYPE_LLDP 0x88cc |
| #endif |
