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#ifndef __BACKPORT_LINUX_NETLINK_H
#define __BACKPORT_LINUX_NETLINK_H
#include_next <linux/netlink.h>
#include <linux/version.h>
#if LINUX_VERSION_IS_LESS(4,14,0)
struct nla_bitfield32 {
__u32 value;
__u32 selector;
};
#endif
#if LINUX_VERSION_IS_LESS(4,12,0)
#define NETLINK_MAX_COOKIE_LEN 20
struct netlink_ext_ack {
const char *_msg;
const struct nlattr *bad_attr;
u8 cookie[NETLINK_MAX_COOKIE_LEN];
u8 cookie_len;
/* backport only field */
void *__bp_doit;
};
#define NL_SET_ERR_MSG(extack, msg) do { \
static const char _msg[] = (msg); \
\
(extack)->_msg = _msg; \
} while (0)
#endif
#ifndef NL_SET_ERR_MSG_ATTR
#define NL_SET_ERR_MSG_ATTR(extack, attr, msg) do { \
static const char __msg[] = msg; \
struct netlink_ext_ack *__extack = (extack); \
\
if (__extack) { \
__extack->_msg = __msg; \
__extack->bad_attr = (attr); \
} \
} while (0)
#endif
/* this is for patches we apply */
#if LINUX_VERSION_IS_LESS(3,7,0)
#define netlink_notify_portid(__notify) (__notify->pid)
#define NETLINK_CB_PORTID(__skb) NETLINK_CB(__skb).pid
#else
#define netlink_notify_portid(__notify) (__notify->portid)
#define NETLINK_CB_PORTID(__skb) NETLINK_CB(__skb).portid
#endif
#ifndef NL_SET_BAD_ATTR
#define NL_SET_BAD_ATTR(extack, attr) do { \
if ((extack)) \
(extack)->bad_attr = (attr); \
} while (0)
#endif /* NL_SET_BAD_ATTR */
#endif /* __BACKPORT_LINUX_NETLINK_H */
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