d0ba3bb1e2
it has been non-functional for years and caused numerous memleaks and crashes for people that tried to enable it. it has no maintained upstream source, and it does not look like it's going to be fixed any time soon Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 45423
111 lines
3.4 KiB
Diff
111 lines
3.4 KiB
Diff
--- a/include/net/addrconf.h
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+++ b/include/net/addrconf.h
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@@ -88,6 +88,12 @@ int ipv6_rcv_saddr_equal(const struct so
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void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr);
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void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr);
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+extern int (*ipv6_dev_get_saddr_hook)(struct net *net,
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+ const struct net_device *dev,
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+ const struct in6_addr *daddr,
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+ unsigned int prefs,
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+ struct in6_addr *saddr);
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+
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static inline unsigned long addrconf_timeout_fixup(u32 timeout,
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unsigned int unit)
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{
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--- a/net/bridge/Kconfig
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+++ b/net/bridge/Kconfig
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@@ -6,7 +6,6 @@ config BRIDGE
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tristate "802.1d Ethernet Bridging"
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select LLC
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select STP
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- depends on IPV6 || IPV6=n
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---help---
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If you say Y here, then your Linux box will be able to act as an
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Ethernet bridge, which means that the different Ethernet segments it
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--- a/net/ipv6/Makefile
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+++ b/net/ipv6/Makefile
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@@ -45,6 +45,7 @@ obj-y += addrconf_core.o exthdrs_core.o
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obj-$(CONFIG_INET) += output_core.o protocol.o $(ipv6-offload)
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obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
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+obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_stubs.o
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ifneq ($(CONFIG_IPV6),)
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obj-$(CONFIG_NET_UDP_TUNNEL) += ip6_udp_tunnel.o
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--- a/net/ipv6/addrconf.c
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+++ b/net/ipv6/addrconf.c
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@@ -1317,7 +1317,7 @@ out:
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return ret;
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}
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-int ipv6_dev_get_saddr(struct net *net, const struct net_device *dst_dev,
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+static int __ipv6_dev_get_saddr(struct net *net, const struct net_device *dst_dev,
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const struct in6_addr *daddr, unsigned int prefs,
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struct in6_addr *saddr)
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{
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@@ -1442,7 +1442,6 @@ try_nextdev:
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in6_ifa_put(hiscore->ifa);
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return 0;
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}
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-EXPORT_SYMBOL(ipv6_dev_get_saddr);
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int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
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u32 banned_flags)
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@@ -5451,6 +5450,9 @@ int __init addrconf_init(void)
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ipv6_addr_label_rtnl_register();
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+ BUG_ON(ipv6_dev_get_saddr_hook != NULL);
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+ rcu_assign_pointer(ipv6_dev_get_saddr_hook, __ipv6_dev_get_saddr);
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+
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return 0;
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errout:
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rtnl_af_unregister(&inet6_ops);
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@@ -5470,6 +5472,9 @@ void addrconf_cleanup(void)
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struct net_device *dev;
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int i;
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+ rcu_assign_pointer(ipv6_dev_get_saddr_hook, NULL);
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+ synchronize_rcu();
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+
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unregister_netdevice_notifier(&ipv6_dev_notf);
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unregister_pernet_subsys(&addrconf_ops);
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ipv6_addr_label_cleanup();
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--- /dev/null
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+++ b/net/ipv6/inet6_stubs.c
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@@ -0,0 +1,33 @@
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+/*
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License
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+ * as published by the Free Software Foundation; either version
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+ * 2 of the License, or (at your option) any later version.
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+ */
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+#include <linux/export.h>
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+#include <net/ipv6.h>
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+
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+int (*ipv6_dev_get_saddr_hook)(struct net *net, const struct net_device *dev,
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+ const struct in6_addr *daddr, unsigned int prefs,
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+ struct in6_addr *saddr);
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+
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+EXPORT_SYMBOL(ipv6_dev_get_saddr_hook);
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+
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+int ipv6_dev_get_saddr(struct net *net, const struct net_device *dst_dev,
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+ const struct in6_addr *daddr, unsigned int prefs,
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+ struct in6_addr *saddr)
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+{
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+ int ret = -EADDRNOTAVAIL;
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+ typeof(ipv6_dev_get_saddr_hook) dev_get_saddr;
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+
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+ rcu_read_lock();
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+ dev_get_saddr = rcu_dereference(ipv6_dev_get_saddr_hook);
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+
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+ if (dev_get_saddr)
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+ ret = dev_get_saddr(net, dst_dev, daddr, prefs, saddr);
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+
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+ rcu_read_unlock();
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+ return ret;
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+}
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+EXPORT_SYMBOL(ipv6_dev_get_saddr);
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+
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