/*
 * CDDL HEADER START
 *
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2015, 2016 by Delphix. All rights reserved.
 */

#ifndef _CONNSTAT_H
#define _CONNSTAT_H

#include <sys/types.h>
#include <sys/socket.h>
#include <ofmt.h>
#include <sys/stropts.h>

#ifdef  __cplusplus
extern "C" {
#endif

typedef struct connstat_conn_attr_s {
        struct sockaddr_storage ca_laddr;
        struct sockaddr_storage ca_raddr;
        int                     ca_lport;
        int                     ca_rport;
        int                     ca_state;
} connstat_conn_attr_t;

typedef struct conn_walk_state_s {
        ofmt_handle_t           cws_ofmt;
        uint_t                  cws_flags;
        connstat_conn_attr_t    cws_filter;
} conn_walk_state_t;

/* cws_flags */
#define CS_LOOPBACK     0x0001  /* Include loopback connections */
#define CS_IPV4         0x0002  /* Show only IPv4 connections */
#define CS_IPV6         0x0004  /* Show only IPv6 connections */
#define CS_LADDR        0x0008  /* Filter by laddr in cws_filter */
#define CS_RADDR        0x0010  /* Filter by raddr in cws_filter */
#define CS_LPORT        0x0020  /* Filter by lport in cws_filter */
#define CS_RPORT        0x0040  /* Filter by rport in cws_filter */
#define CS_STATE        0x0080  /* Filter by state in cws_filter */
#define CS_PARSABLE     0x0100  /* Parsable output */

typedef ofmt_field_t *connstat_getfieldsfunc_t(void);
typedef void connstat_walkfunc_t(struct strbuf *, conn_walk_state_t *);

typedef struct connstat_proto_s {
        char    *csp_proto;
        char    *csp_default_fields;
        int     csp_miblevel;
        int     csp_mibv4name;
        int     csp_mibv6name;
        connstat_getfieldsfunc_t *csp_getfields;
        connstat_walkfunc_t *csp_v4walk;
        connstat_walkfunc_t *csp_v6walk;
} connstat_proto_t;

boolean_t print_string(ofmt_arg_t *, char *, uint_t);
boolean_t print_uint16(ofmt_arg_t *, char *, uint_t);
boolean_t print_uint32(ofmt_arg_t *, char *, uint_t);
boolean_t print_uint64(ofmt_arg_t *, char *, uint_t);

#ifdef  __cplusplus
}
#endif

#endif  /* _CONNSTAT_H */