net: lwtunnel: Add extack to encap attr validation

Pass extack down to lwtunnel_valid_encap_type and
lwtunnel_valid_encap_type_attr. Add messages for unknown
or unsupported encap types.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2017-05-27 16:19:27 -06:00
committed by David S. Miller
parent 7805599895
commit c255bd681d
4 changed files with 28 additions and 13 deletions

View File

@ -107,8 +107,10 @@ int lwtunnel_encap_add_ops(const struct lwtunnel_encap_ops *op,
unsigned int num);
int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
unsigned int num);
int lwtunnel_valid_encap_type(u16 encap_type);
int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len);
int lwtunnel_valid_encap_type(u16 encap_type,
struct netlink_ext_ack *extack);
int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len,
struct netlink_ext_ack *extack);
int lwtunnel_build_state(u16 encap_type,
struct nlattr *encap,
unsigned int family, const void *cfg,
@ -172,11 +174,14 @@ static inline int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
return -EOPNOTSUPP;
}
static inline int lwtunnel_valid_encap_type(u16 encap_type)
static inline int lwtunnel_valid_encap_type(u16 encap_type,
struct netlink_ext_ack *extack)
{
NL_SET_ERR_MSG(extack, "CONFIG_LWTUNNEL is not enabled in this kernel");
return -EOPNOTSUPP;
}
static inline int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len)
static inline int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len,
struct netlink_ext_ack *extack)
{
/* return 0 since we are not walking attr looking for
* RTA_ENCAP_TYPE attribute on nexthops.