+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LIBNETLINK_H__
#define __LIBNETLINK_H__ 1
#include <linux/if_addr.h>
#include <linux/neighbour.h>
#include <linux/netconf.h>
+#include <arpa/inet.h>
struct rtnl_handle {
int fd;
int proto;
FILE *dump_fp;
#define RTNL_HANDLE_F_LISTEN_ALL_NSID 0x01
+#define RTNL_HANDLE_F_SUPPRESS_NLERR 0x02
int flags;
};
+struct nlmsg_list {
+ struct nlmsg_list *next;
+ struct nlmsghdr h;
+};
+
+struct nlmsg_chain {
+ struct nlmsg_list *head;
+ struct nlmsg_list *tail;
+};
+
extern int rcvbuf;
int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions)
__attribute__((warn_unused_result));
void rtnl_close(struct rtnl_handle *rth);
+
+int rtnl_addrdump_req(struct rtnl_handle *rth, int family)
+ __attribute__((warn_unused_result));
+int rtnl_addrlbldump_req(struct rtnl_handle *rth, int family)
+ __attribute__((warn_unused_result));
+int rtnl_routedump_req(struct rtnl_handle *rth, int family)
+ __attribute__((warn_unused_result));
+int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
+ __attribute__((warn_unused_result));
+
int rtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type)
__attribute__((warn_unused_result));
int rtnl_wilddump_req_filter(struct rtnl_handle *rth, int fam, int type,
struct rtnl_ctrl_data *,
struct nlmsghdr *n, void *);
+typedef int (*nl_ext_ack_fn_t)(const char *errmsg, uint32_t off,
+ const struct nlmsghdr *inner_nlh);
+
struct rtnl_dump_filter_arg {
rtnl_filter_t filter;
void *arg1;
#define rtnl_dump_filter(rth, filter, arg) \
rtnl_dump_filter_nc(rth, filter, arg, 0)
int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
- struct nlmsghdr *answer, size_t len)
+ struct nlmsghdr **answer)
+ __attribute__((warn_unused_result));
+int rtnl_talk_iov(struct rtnl_handle *rtnl, struct iovec *iovec, size_t iovlen,
+ struct nlmsghdr **answer)
+ __attribute__((warn_unused_result));
+int rtnl_talk_extack(struct rtnl_handle *rtnl, struct nlmsghdr *n,
+ struct nlmsghdr **answer, nl_ext_ack_fn_t errfn)
+ __attribute__((warn_unused_result));
+int rtnl_talk_suppress_rtnl_errmsg(struct rtnl_handle *rtnl, struct nlmsghdr *n,
+ struct nlmsghdr **answer)
__attribute__((warn_unused_result));
int rtnl_send(struct rtnl_handle *rth, const void *buf, int)
__attribute__((warn_unused_result));
int rtnl_send_check(struct rtnl_handle *rth, const void *buf, int)
__attribute__((warn_unused_result));
+int nl_dump_ext_ack(const struct nlmsghdr *nlh, nl_ext_ack_fn_t errfn);
int addattr(struct nlmsghdr *n, int maxlen, int type);
int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data);
{
return *(__u16 *)RTA_DATA(rta);
}
+static inline __be16 rta_getattr_be16(const struct rtattr *rta)
+{
+ return ntohs(rta_getattr_u16(rta));
+}
static inline __u32 rta_getattr_u32(const struct rtattr *rta)
{
return *(__u32 *)RTA_DATA(rta);
}
+static inline __be32 rta_getattr_be32(const struct rtattr *rta)
+{
+ return ntohl(rta_getattr_u32(rta));
+}
static inline __u64 rta_getattr_u64(const struct rtattr *rta)
{
__u64 tmp;