src/basic/missing_network.h

   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