missing.h: add various network enums

We used to check if e.g. IFLA_BOND_MAX is defined and provide fallback
values in missing.h is it wasn't. But over time, various kernel
versions added IFLA_* defines, so checking for IFLA_BOND_MAX is not
enough if the kernel is new enough to have some of them but too old to
have all. In case we detect that the latest known enum value is
missing, #define most of them.

https://bugs.freedesktop.org/show_bug.cgi?id=80095

configure.ac

@@ -278,12 +278,33 @@ LIBS="$save_LIBS"
 
 AC_CHECK_FUNCS([fanotify_init fanotify_mark])
 AC_CHECK_FUNCS([__secure_getenv secure_getenv])
-AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at, setns, LO_FLAGS_PARTSCAN], [], [], [[#include <sys/types.h>
+AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at, setns, LO_FLAGS_PARTSCAN],
+               [], [], [[
+#include <sys/types.h>
 #include <unistd.h>
 #include <sys/mount.h>
 #include <fcntl.h>
 #include <sched.h>
-#include <linux/loop.h>]])
+#include <linux/loop.h>
+]])
+
+AC_CHECK_DECLS([IFLA_PHYS_PORT_ID,
+                IFLA_BOND_AD_INFO,
+                IFLA_VLAN_PROTOCOL,
+                IFLA_VXLAN_LOCAL6,
+                IFLA_IPTUN_6RD_RELAY_PREFIXLEN,
+                IFLA_BRIDGE_VLAN_INFO],
+[], [], [[
+#include <inttypes.h>
+#include <netinet/in.h>
+#include <netinet/ether.h>
+#include <linux/rtnetlink.h>
+#include <net/if.h>
+#include <linux/ip.h>
+#include <linux/if_tunnel.h>
+#include <linux/if_link.h>
+#include <linux/if_bridge.h>
+]])
 
 # This makes sure pkg.m4 is available.
 m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])
@@ -928,10 +949,10 @@ AC_SUBST(DNS_SERVERS)
 # ------------------------------------------------------------------------------
 have_networkd=no
 AC_ARG_ENABLE(networkd, AS_HELP_STRING([--disable-networkd], [disable networkd]))
-if test "x$enable_networkd" != "xno"; then
+AS_IF([test "x$enable_networkd" != "xno"], [
         AC_DEFINE(ENABLE_NETWORKD, 1, [Define if networkd support is to be enabled])
         have_networkd=yes
-fi
+])
 AM_CONDITIONAL(ENABLE_NETWORKD, [test "x$have_networkd" = "xyes"])
 
 # ------------------------------------------------------------------------------

src/network/networkd-tunnel.c

@@ -29,6 +29,7 @@
 #include "networkd.h"
 #include "network-internal.h"
 #include "util.h"
+#include "missing.h"
 
 
 static int netdev_fill_ipip_rtnl_message(Link *link, sd_rtnl_message *m) {

src/network/networkd-vxlan.c

@@ -25,6 +25,7 @@
 
 #include "sd-rtnl.h"
 #include "networkd.h"
+#include "missing.h"
 
 
 static int netdev_fill_vxlan_rtnl_message(NetDev *netdev, Link *link, sd_rtnl_message *m) {

src/shared/missing.h

@@ -92,19 +92,6 @@
 #define IP_TRANSPARENT 19
 #endif
 
-#ifndef IFLA_CARRIER
-  #define IFLA_CARRIER 33
-  #ifndef IFLA_NUM_RX_QUEUES
-    #define IFLA_NUM_RX_QUEUES 32
-    #ifndef IFLA_NUM_TX_QUEUES
-      #define IFLA_NUM_TX_QUEUES 31
-      #ifndef IFLA_PROMISCUITY
-        #define IFLA_PROMISCUITY 30
-      #endif
-    #endif
-  #endif
-#endif
-
 #ifndef SOL_NETLINK
 #define SOL_NETLINK 270
 #endif
@@ -384,34 +371,110 @@ static inline int setns(int fd, int nstype) {
 #define LOOP_CTL_GET_FREE 0x4C82
 #endif
 
-#ifndef IFLA_BOND_MAX
-enum {
-        IFLA_BOND_UNSPEC,
-        IFLA_BOND_MODE,
-        IFLA_BOND_ACTIVE_SLAVE,
-        IFLA_BOND_MIIMON,
-        IFLA_BOND_UPDELAY,
-        IFLA_BOND_DOWNDELAY,
-        IFLA_BOND_USE_CARRIER,
-        IFLA_BOND_ARP_INTERVAL,
-        IFLA_BOND_ARP_IP_TARGET,
-        IFLA_BOND_ARP_VALIDATE,
-        IFLA_BOND_ARP_ALL_TARGETS,
-        IFLA_BOND_PRIMARY,
-        IFLA_BOND_PRIMARY_RESELECT,
-        IFLA_BOND_FAIL_OVER_MAC,
-        IFLA_BOND_XMIT_HASH_POLICY,
-        IFLA_BOND_RESEND_IGMP,
-        IFLA_BOND_NUM_PEER_NOTIF,
-        IFLA_BOND_ALL_SLAVES_ACTIVE,
-        IFLA_BOND_MIN_LINKS,
-        IFLA_BOND_LP_INTERVAL,
-        IFLA_BOND_PACKETS_PER_SLAVE,
-        IFLA_BOND_AD_LACP_RATE,
-        IFLA_BOND_AD_SELECT,
-        IFLA_BOND_AD_INFO,
-        __IFLA_BOND_MAX,
-};
+#if !HAVE_DECL_IFLA_PHYS_PORT_ID
+#undef IFLA_PROMISCUITY
+#define IFLA_PROMISCUITY 30
+#define IFLA_NUM_TX_QUEUES 31
+#define IFLA_NUM_RX_QUEUES 32
+#define IFLA_CARRIER 33
+#define IFLA_PHYS_PORT_ID 34
+#define __IFLA_MAX 35
+
+#define IFLA_MAX (__IFLA_MAX - 1)
+#endif
+
+#if !HAVE_DECL_IFLA_BOND_AD_INFO
+#define IFLA_BOND_UNSPEC 0
+#define IFLA_BOND_MODE 1
+#define IFLA_BOND_ACTIVE_SLAVE 2
+#define IFLA_BOND_MIIMON 3
+#define IFLA_BOND_UPDELAY 4
+#define IFLA_BOND_DOWNDELAY 5
+#define IFLA_BOND_USE_CARRIER 6
+#define IFLA_BOND_ARP_INTERVAL 7
+#define IFLA_BOND_ARP_IP_TARGET 8
+#define IFLA_BOND_ARP_VALIDATE 9
+#define IFLA_BOND_ARP_ALL_TARGETS 10
+#define IFLA_BOND_PRIMARY 11
+#define IFLA_BOND_PRIMARY_RESELECT 12
+#define IFLA_BOND_FAIL_OVER_MAC 13
+#define IFLA_BOND_XMIT_HASH_POLICY 14
+#define IFLA_BOND_RESEND_IGMP 15
+#define IFLA_BOND_NUM_PEER_NOTIF 16
+#define IFLA_BOND_ALL_SLAVES_ACTIVE 17
+#define IFLA_BOND_MIN_LINKS 18
+#define IFLA_BOND_LP_INTERVAL 19
+#define IFLA_BOND_PACKETS_PER_SLAVE 20
+#define IFLA_BOND_AD_LACP_RATE 21
+#define IFLA_BOND_AD_SELECT 22
+#define IFLA_BOND_AD_INFO 23
+#define __IFLA_BOND_MAX 24
 
 #define IFLA_BOND_MAX	(__IFLA_BOND_MAX - 1)
 #endif
+
+#if !HAVE_DECL_IFLA_VLAN_PROTOCOL
+#define IFLA_VLAN_UNSPEC 0
+#define IFLA_VLAN_ID 1
+#define IFLA_VLAN_FLAGS 2
+#define IFLA_VLAN_EGRESS_QOS 3
+#define IFLA_VLAN_INGRESS_QOS 4
+#define IFLA_VLAN_PROTOCOL 5
+#define __IFLA_VLAN_MAX 6
+
+#define IFLA_VLAN_MAX   (__IFLA_VLAN_MAX - 1)
+#endif
+
+#if !HAVE_DECL_IFLA_VXLAN_LOCAL6
+#define IFLA_VXLAN_UNSPEC 0
+#define IFLA_VXLAN_ID 1
+#define IFLA_VXLAN_GROUP 2
+#define IFLA_VXLAN_LINK 3
+#define IFLA_VXLAN_LOCAL 4
+#define IFLA_VXLAN_TTL 5
+#define IFLA_VXLAN_TOS 6
+#define IFLA_VXLAN_LEARNING 7
+#define IFLA_VXLAN_AGEING 8
+#define IFLA_VXLAN_LIMIT 9
+#define IFLA_VXLAN_PORT_RANGE 10
+#define IFLA_VXLAN_PROXY 11
+#define IFLA_VXLAN_RSC 12
+#define IFLA_VXLAN_L2MISS 13
+#define IFLA_VXLAN_L3MISS 14
+#define IFLA_VXLAN_PORT 15
+#define IFLA_VXLAN_GROUP6 16
+#define IFLA_VXLAN_LOCAL6 17
+#define __IFLA_VXLAN_MAX 18
+
+#define IFLA_VXLAN_MAX  (__IFLA_VXLAN_MAX - 1)
+#endif
+
+#if !HAVE_DECL_IFLA_IPTUN_6RD_RELAY_PREFIXLEN
+#define IFLA_IPTUN_UNSPEC 0
+#define IFLA_IPTUN_LINK 1
+#define IFLA_IPTUN_LOCAL 2
+#define IFLA_IPTUN_REMOTE 3
+#define IFLA_IPTUN_TTL 4
+#define IFLA_IPTUN_TOS 5
+#define IFLA_IPTUN_ENCAP_LIMIT 6
+#define IFLA_IPTUN_FLOWINFO 7
+#define IFLA_IPTUN_FLAGS 8
+#define IFLA_IPTUN_PROTO 9
+#define IFLA_IPTUN_PMTUDISC 10
+#define IFLA_IPTUN_6RD_PREFIX 11
+#define IFLA_IPTUN_6RD_RELAY_PREFIX 12
+#define IFLA_IPTUN_6RD_PREFIXLEN 13
+#define IFLA_IPTUN_6RD_RELAY_PREFIXLEN 14
+#define __IFLA_IPTUN_MAX 15
+
+#define IFLA_IPTUN_MAX  (__IFLA_IPTUN_MAX - 1)
+#endif
+
+#if !HAVE_DECL_IFLA_BRIDGE_VLAN_INFO
+#define IFLA_BRIDGE_FLAGS 0
+#define IFLA_BRIDGE_MODE 1
+#define IFLA_BRIDGE_VLAN_INFO 2
+#define __IFLA_BRIDGE_MAX 3
+
+#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
+#endif