Add stubs to retrieve a handle to an IPv6 FIB table, fib6_get_table,
a stub to do a lookup in a specific table, fib6_table_lookup, and
a stub for a full route lookup.
The stubs are needed for core bpf code to handle the case when the
IPv6 module is not builtin.
Signed-off-by: David Ahern <dsah...@gmail.com>
---
include/net/addrconf.h | 14 ++++++++++++++
net/ipv6/addrconf_core.c | 33 ++++++++++++++++++++++++++++++++-
net/ipv6/af_inet6.c | 6 +++++-
3 files changed, 51 insertions(+), 2 deletions(-)
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 8312cc25a3af..ff766ab207e0 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -223,6 +223,20 @@ struct ipv6_stub {
const struct in6_addr *addr);
int (*ipv6_dst_lookup)(struct net *net, struct sock *sk,
struct dst_entry **dst, struct flowi6 *fl6);
+
+ struct fib6_table *(*fib6_get_table)(struct net *net, u32 id);
+ struct fib6_info *(*fib6_lookup)(struct net *net, int oif,
+ struct flowi6 *fl6, int flags);
+ struct fib6_info *(*fib6_table_lookup)(struct net *net,
+ struct fib6_table *table,
+ int oif, struct flowi6 *fl6,
+ int flags);
+ struct fib6_info *(*fib6_multipath_select)(const struct net *net,
+ struct fib6_info *f6i,
+ struct flowi6 *fl6, int oif,
+ const struct sk_buff *skb,
+ int strict);
+
void (*udpv6_encap_enable)(void);
void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr
*daddr,
const struct in6_addr *solicited_addr,
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index 32b564dfd02a..2fe754fd4f5e 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -134,8 +134,39 @@ static int eafnosupport_ipv6_dst_lookup(struct net *net,
struct sock *u1,
return -EAFNOSUPPORT;
}
+static struct fib6_table *eafnosupport_fib6_get_table(struct net *net, u32 id)
+{
+ return NULL;
+}
+
+static struct fib6_info *
+eafnosupport_fib6_table_lookup(struct net *net, struct fib6_table *table,
+ int oif, struct flowi6 *fl6, int flags)
+{
+ return NULL;
+}
+
+static struct fib6_info *
+eafnosupport_fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
+ int flags)
+{
+ return NULL;
+}
+
+static struct fib6_info *
+eafnosupport_fib6_multipath_select(const struct net *net, struct fib6_info
*f6i,
+ struct flowi6 *fl6, int oif,
+ const struct sk_buff *skb, int strict)
+{
+ return f6i;
+}
+
const struct ipv6_stub *ipv6_stub __read_mostly = &(struct ipv6_stub) {
- .ipv6_dst_lookup = eafnosupport_ipv6_dst_lookup,
+ .ipv6_dst_lookup = eafnosupport_ipv6_dst_lookup,
+ .fib6_get_table = eafnosupport_fib6_get_table,
+ .fib6_table_lookup = eafnosupport_fib6_table_lookup,
+ .fib6_lookup = eafnosupport_fib6_lookup,
+ .fib6_multipath_select = eafnosupport_fib6_multipath_select,
};
EXPORT_SYMBOL_GPL(ipv6_stub);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 36d622c477b1..c0e8255d50bb 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -887,7 +887,11 @@ static struct pernet_operations inet6_net_ops = {
static const struct ipv6_stub ipv6_stub_impl = {
.ipv6_sock_mc_join = ipv6_sock_mc_join,
.ipv6_sock_mc_drop = ipv6_sock_mc_drop,
- .ipv6_dst_lookup = ip6_dst_lookup,
+ .ipv6_dst_lookup = ip6_dst_lookup,
+ .fib6_get_table = fib6_get_table,
+ .fib6_table_lookup = fib6_table_lookup,
+ .fib6_lookup = fib6_lookup,
+ .fib6_multipath_select = fib6_multipath_select,
.udpv6_encap_enable = udpv6_encap_enable,
.ndisc_send_na = ndisc_send_na,
.nd_tbl = &nd_tbl,
--
2.11.0
