/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _IDM_SO_H
#define _IDM_SO_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <sys/idm/idm_transport.h>
#include <sys/ksocket.h>

/*
 * Define TCP window size (send and receive buffer sizes)
 */

#define IDM_RCVBUF_SIZE         (256 * 1024)
#define IDM_SNDBUF_SIZE         (256 * 1024)

/*
 * Lower and upper bounds to use the 128k buffer cache.  Below the lower bound
 * allocations will use the built-in Solaris buffer caches.  We don't expect
 * to see allocations above the upper bound because SBD currently allocates
 * 128k buffers.
 */

#define IDM_SO_BUF_CACHE_LB     (32 * 1024)
#define IDM_SO_BUF_CACHE_UB     (128 * 1024)

/* sockets-specific portion of idm_svc_t */
typedef struct idm_so_svc_s {
        ksocket_t               is_so;
        kthread_t               *is_thread;
        kt_did_t                is_thread_did;
        boolean_t               is_thread_running;
} idm_so_svc_t;

/* sockets-specific portion of idm_conn_t */
typedef struct idm_so_conn_s {
        ksocket_t               ic_so;

        kthread_t               *ic_tx_thread;
        kt_did_t                ic_tx_thread_did;
        boolean_t               ic_tx_thread_running;
        kmutex_t                ic_tx_mutex;
        kcondvar_t              ic_tx_cv;
        list_t                  ic_tx_list;     /* List of PDUs for transmit */

        kthread_t               *ic_rx_thread;
        kt_did_t                ic_rx_thread_did;
        boolean_t               ic_rx_thread_running;
} idm_so_conn_t;

void idm_so_init(idm_transport_t *it);
void idm_so_fini();

/* used by idm_so_timed_socket_connect */
typedef struct idm_so_timed_socket_s {
        kcondvar_t      it_cv;
        boolean_t       it_callback_called;
        int             it_socket_error_code;
} idm_so_timed_socket_t;

/* Socket functions */

ksocket_t
idm_socreate(int domain, int type, int protocol);

void idm_soshutdown(ksocket_t so);

void idm_sodestroy(ksocket_t so);

int idm_ss_compare(const struct sockaddr_storage *cmp_ss1,
    const struct sockaddr_storage *cmp_ss2,
    boolean_t v4_mapped_as_v4,
    boolean_t compare_ports);

int idm_get_ipaddr(idm_addr_list_t **);

void idm_addr_to_sa(idm_addr_t *dportal,
    struct sockaddr_storage *sa);

#define IDM_SA_NTOP_BUFSIZ (INET6_ADDRSTRLEN + sizeof ("[].65535") + 1)

const char *idm_sa_ntop(const struct sockaddr_storage *sa,
    char *buf, size_t size);

int idm_sorecv(ksocket_t so, void *msg, size_t len);

int idm_sosendto(ksocket_t so, void *buff, size_t len,
    struct sockaddr *name, socklen_t namelen);

int idm_iov_sosend(ksocket_t so, iovec_t *iop, int iovlen,
    size_t total_len);

int idm_iov_sorecv(ksocket_t so, iovec_t *iop, int iovlen,
    size_t total_len);

void idm_sotx_thread(void *arg);
void idm_sorx_thread(void *arg);


int idm_sotx_pdu_constructor(void *hdl, void *arg, int flags);

void idm_sotx_pdu_destructor(void *pdu_void, void *arg);

int idm_sorx_pdu_constructor(void *hdl, void *arg, int flags);

void idm_sorx_pdu_destructor(void *pdu_void, void *arg);

void idm_so_svc_port_watcher(void *arg);

int idm_so_timed_socket_connect(ksocket_t ks,
    struct sockaddr_storage *sa, int sa_sz, int login_max_usec);

#ifdef  __cplusplus
}
#endif

#endif /* _IDM_SO_H */