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authorDavid Ahern <dsahern@gmail.com>2019-04-23 08:23:41 -0700
committerDavid S. Miller <davem@davemloft.net>2019-04-23 19:42:29 -0700
commitffa8ce54be3aaf6b15abae3bbd08282b867d3a4f (patch)
tree73a06ba0a651afeb65f19a4ee93e296e45bfe849
parent0a5d329ffd1be394e3e4176eb11ca51dfde03c40 (diff)
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lwtunnel: Pass encap and encap type attributes to lwtunnel_fill_encap
Currently, lwtunnel_fill_encap hardcodes the encap and encap type attributes as RTA_ENCAP and RTA_ENCAP_TYPE, respectively. The nexthop objects want to re-use this code but the encap attributes passed to userspace as NHA_ENCAP and NHA_ENCAP_TYPE. Since that is the only difference, change lwtunnel_fill_encap to take the attribute type as an input. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/lwtunnel.h7
-rw-r--r--net/core/lwtunnel.c7
-rw-r--r--net/ipv4/fib_semantics.c3
3 files changed, 10 insertions, 7 deletions
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index 671113bcb2cc..5d6c5b1fc695 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -118,8 +118,8 @@ int lwtunnel_build_state(u16 encap_type,
unsigned int family, const void *cfg,
struct lwtunnel_state **lws,
struct netlink_ext_ack *extack);
-int lwtunnel_fill_encap(struct sk_buff *skb,
- struct lwtunnel_state *lwtstate);
+int lwtunnel_fill_encap(struct sk_buff *skb, struct lwtunnel_state *lwtstate,
+ int encap_attr, int encap_type_attr);
int lwtunnel_get_encap_size(struct lwtunnel_state *lwtstate);
struct lwtunnel_state *lwtunnel_state_alloc(int hdr_len);
int lwtunnel_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b);
@@ -219,7 +219,8 @@ static inline int lwtunnel_build_state(u16 encap_type,
}
static inline int lwtunnel_fill_encap(struct sk_buff *skb,
- struct lwtunnel_state *lwtstate)
+ struct lwtunnel_state *lwtstate,
+ int encap_attr, int encap_type_attr)
{
return 0;
}
diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index a8018aa5b798..94749e0e2cfd 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -223,7 +223,8 @@ void lwtstate_free(struct lwtunnel_state *lws)
}
EXPORT_SYMBOL_GPL(lwtstate_free);
-int lwtunnel_fill_encap(struct sk_buff *skb, struct lwtunnel_state *lwtstate)
+int lwtunnel_fill_encap(struct sk_buff *skb, struct lwtunnel_state *lwtstate,
+ int encap_attr, int encap_type_attr)
{
const struct lwtunnel_encap_ops *ops;
struct nlattr *nest;
@@ -236,7 +237,7 @@ int lwtunnel_fill_encap(struct sk_buff *skb, struct lwtunnel_state *lwtstate)
lwtstate->type > LWTUNNEL_ENCAP_MAX)
return 0;
- nest = nla_nest_start(skb, RTA_ENCAP);
+ nest = nla_nest_start(skb, encap_attr);
if (!nest)
return -EMSGSIZE;
@@ -250,7 +251,7 @@ int lwtunnel_fill_encap(struct sk_buff *skb, struct lwtunnel_state *lwtstate)
if (ret)
goto nla_put_failure;
nla_nest_end(skb, nest);
- ret = nla_put_u16(skb, RTA_ENCAP_TYPE, lwtstate->type);
+ ret = nla_put_u16(skb, encap_type_attr, lwtstate->type);
if (ret)
goto nla_put_failure;
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index b5230c4a1c16..c695e629fac2 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1503,7 +1503,8 @@ int fib_nexthop_info(struct sk_buff *skb, const struct fib_nh_common *nhc,
goto nla_put_failure;
if (nhc->nhc_lwtstate &&
- lwtunnel_fill_encap(skb, nhc->nhc_lwtstate) < 0)
+ lwtunnel_fill_encap(skb, nhc->nhc_lwtstate,
+ RTA_ENCAP, RTA_ENCAP_TYPE) < 0)
goto nla_put_failure;
return 0;