-/*
- * netlink/handlers.c default netlink message handlers
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation version 2.1
- * of the License.
- *
- * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
- */
-
-#ifndef NETLINK_HANDLERS_H_
-#define NETLINK_HANDLERS_H_
-
-#include <stdio.h>
-#include <stdint.h>
-#include <sys/types.h>
-#include <netlink/netlink-compat.h>
-#include <netlink/netlink-kernel.h>
-
-struct nl_cb;
-struct nl_handle;
-struct nl_msg;
-
-/**
- * @name Callback Typedefs
- * @{
- */
-
-/**
- * nl_recvmsgs() callback for message processing customization
- * @ingroup cb
- * @arg msg netlink message being processed
- * @arg arg argument passwd on through caller
- */
-typedef int (*nl_recvmsg_msg_cb_t)(struct nl_msg *msg, void *arg);
-
-/**
- * nl_recvmsgs() callback for error message processing customization
- * @ingroup cb
- * @arg nla netlink address of the peer
- * @arg nlerr netlink error message being processed
- * @arg arg argument passed on through caller
- */
-typedef int (*nl_recvmsg_err_cb_t)(struct sockaddr_nl *nla,
- struct nlmsgerr *nlerr, void *arg);
-
-/** @} */
-
-/**
- * Callback actions
- * @ingroup cb
- */
-enum nl_cb_action {
- /** Proceed with wathever would come next */
- NL_PROCEED,
- /** Skip this message */
- NL_SKIP,
- /** Stop parsing altogether and discard remaining messages */
- NL_EXIT,
-};
-
-/**
- * Callback kinds
- * @ingroup cb
- */
-enum nl_cb_kind {
- /** Default handlers (quiet) */
- NL_CB_DEFAULT,
- /** Verbose default handlers (error messages printed) */
- NL_CB_VERBOSE,
- /** Debug handlers for debugging */
- NL_CB_DEBUG,
- /** Customized handler specified by the user */
- NL_CB_CUSTOM,
- __NL_CB_KIND_MAX,
-};
-
-#define NL_CB_KIND_MAX (__NL_CB_KIND_MAX - 1)
-
-/**
- * Callback types
- * @ingroup cb
- */
-enum nl_cb_type {
- /** Message is valid */
- NL_CB_VALID,
- /** Last message in a series of multi part messages received */
- NL_CB_FINISH,
- /** Report received that data was lost */
- NL_CB_OVERRUN,
- /** Message wants to be skipped */
- NL_CB_SKIPPED,
- /** Message is an acknowledge */
- NL_CB_ACK,
- /** Called for every message received */
- NL_CB_MSG_IN,
- /** Called for every message sent out except for nl_sendto() */
- NL_CB_MSG_OUT,
- /** Message is malformed and invalid */
- NL_CB_INVALID,
- /** Called instead of internal sequence number checking */
- NL_CB_SEQ_CHECK,
- /** Sending of an acknowledge message has been requested */
- NL_CB_SEND_ACK,
- __NL_CB_TYPE_MAX,
-};
-
-#define NL_CB_TYPE_MAX (__NL_CB_TYPE_MAX - 1)
-
-extern struct nl_cb * nl_cb_new(enum nl_cb_kind);
-extern void nl_cb_destroy(struct nl_cb *);
-extern struct nl_cb * nl_cb_clone(struct nl_cb *);
-
-extern int nl_cb_set(struct nl_cb *, enum nl_cb_type, enum nl_cb_kind,
- nl_recvmsg_msg_cb_t, void *);
-extern int nl_cb_set_all(struct nl_cb *, enum nl_cb_kind,
- nl_recvmsg_msg_cb_t, void *);
-extern int nl_cb_err(struct nl_cb *, enum nl_cb_kind, nl_recvmsg_err_cb_t,
- void *);
-
-extern void nl_cb_overwrite_recvmsgs(struct nl_cb *,
- int (*func)(struct nl_handle *,
- struct nl_cb *));
-extern void nl_cb_overwrite_recv(struct nl_cb *,
- int (*func)(struct nl_handle *,
- struct sockaddr_nl *,
- unsigned char **,
- struct ucred **));
-extern void nl_cb_overwrite_send(struct nl_cb *,
- int (*func)(struct nl_handle *,
- struct nl_msg *));
-
-#endif