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authorAlexander V. Chernikov <melifaro@ipfw.ru>2022-12-09 15:59:06 +0100
committerOndrej Zajicek <santiago@crfreenet.org>2022-12-09 16:01:30 +0100
commita80cd4707464cedb526eb72e7704b097af20beb7 (patch)
tree7f29a583093e7822a8c2a2717fcea46621aadebf /sysdep
parent3859e4efc1597368df647323c5a3cc1771cb64ca (diff)
Netlink on FreeBSD support
Netlink support was added to FreeBSD recently. It is not as full-featured as its Linux counterpart yet, however the added subset is enough to make a routing daemon work. Specifically, it supports multiple tables, multipath, nexthops and nexthops groups. No MPLS support yet. The attached change adds 'bsd-netlink’ sysconf target, allowing to build both netlink & rtsock versions on FreeBSD.
Diffstat (limited to 'sysdep')
-rw-r--r--sysdep/cf/bsd-netlink.h34
-rw-r--r--sysdep/cf/linux.h2
-rw-r--r--sysdep/linux/netlink.c7
3 files changed, 42 insertions, 1 deletions
diff --git a/sysdep/cf/bsd-netlink.h b/sysdep/cf/bsd-netlink.h
new file mode 100644
index 00000000..09149dc4
--- /dev/null
+++ b/sysdep/cf/bsd-netlink.h
@@ -0,0 +1,34 @@
+/*
+ * Configuration for FreeBSD based systems with netlink support
+ *
+ * (c) 2022 Alexander Chernikov <melifaro@FreeBSD.org>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#define CONFIG_AUTO_ROUTES
+#define CONFIG_SELF_CONSCIOUS
+#define CONFIG_MULTIPLE_TABLES
+#define CONFIG_SINGLE_ROUTE
+
+#define CONFIG_SKIP_MC_BIND
+#define CONFIG_NO_IFACE_BIND
+#define CONFIG_USE_HDRINCL
+
+#define CONFIG_INCLUDE_SYSIO_H "sysdep/bsd/sysio.h"
+#define CONFIG_INCLUDE_KRTSYS_H "sysdep/linux/krt-sys.h"
+
+#define CONFIG_FREEBSD_NETLINK
+
+#ifndef AF_MPLS
+#define AF_MPLS 39
+#endif
+
+#ifndef SO_RCVBUFFORCE
+#define SO_RCVBUFFORCE SO_RCVBUF
+#endif
+
+/*
+Link: sysdep/unix
+Link: sysdep/bsd-netlink
+ */
diff --git a/sysdep/cf/linux.h b/sysdep/cf/linux.h
index 56ecf017..85598c10 100644
--- a/sysdep/cf/linux.h
+++ b/sysdep/cf/linux.h
@@ -17,6 +17,8 @@
#define CONFIG_INCLUDE_SYSIO_H "sysdep/linux/sysio.h"
#define CONFIG_INCLUDE_KRTSYS_H "sysdep/linux/krt-sys.h"
+#define CONFIG_LINUX_NETLINK
+
#define CONFIG_RESTRICTED_PRIVILEGES
#define CONFIG_INCLUDE_SYSPRIV_H "sysdep/linux/syspriv.h"
diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c
index d9e81c10..dcb25911 100644
--- a/sysdep/linux/netlink.c
+++ b/sysdep/linux/netlink.c
@@ -6,7 +6,6 @@
* Can be freely distributed and used under the terms of the GNU GPL.
*/
-#include <alloca.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
@@ -28,10 +27,16 @@
#include "lib/hash.h"
#include "conf/conf.h"
+#ifdef CONFIG_LINUX_NETLINK
#include <asm/types.h>
#include <linux/if.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
+#endif
+#ifdef CONFIG_FREEBSD_NETLINK
+#include <netlink/netlink.h>
+#include <netlink/netlink_route.h>
+#endif
#ifdef HAVE_MPLS_KERNEL
#include <linux/lwtunnel.h>