udp_impl.h revision e704a8f24a369484ba8f4a1cf49d4db00dd91166
/*
* 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
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _UDP_IMPL_H
#define _UDP_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* UDP implementation private declarations. These interfaces are
* used to build the IP module and are not meant to be accessed
* by any modules except IP itself. They are undocumented and are
* subject to change without notice.
*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
#include <sys/int_types.h>
#include <sys/netstack.h>
#define UDP_MOD_ID 5607
typedef struct udp_bits_s {
udpb_anon_priv_bind : 1,
udpb_pad_to_bit_31 : 1;
} udp_bits_t;
/*
* Bind hash list size and hash function. It has to be a power of 2 for
* hashing.
*/
#define UDP_BIND_FANOUT_SIZE 512
/* UDP bind fanout hash structure. */
typedef struct udp_fanout_s {
char uf_pad[48];
#else
char uf_pad[56];
#endif
} udp_fanout_t;
/*
* dev_q is the write side queue of the entity below IP.
* If there is a module below IP, we can't optimize by looking
* at q_first of the queue below IP. If the driver is directly
* below IP and if the q_first is NULL, we optimize by not doing
* the canput check
*/
#define DEV_Q_IS_FLOW_CTLED(dev_q) \
/* Kstats */
typedef struct udp_stat { /* Class "net" kstats */
#ifdef DEBUG
#endif
} udp_stat_t;
/* Named Dispatch Parameter Management Structure */
typedef struct udpparam_s {
char *udp_param_name;
} udpparam_t;
#define UDP_NUM_EPRIV_PORTS 64
/*
* UDP stack instances
*/
struct udp_stack {
int us_num_epriv_ports;
/* Hint not protected by any lock */
/*
* This controls the rate some ndd info report functions can be used
* by non-priviledged users. It stores the last time such info is
* requested. When those report functions are called again, this
* is checked with the current time and compare with the ndd param
* udp_ndd_get_info_interval.
*/
/*
* The smallest anonymous port in the priviledged port range which UDP
* looks for free port. Use in the option UDP_ANONPRIVBIND.
*/
};
typedef struct udp_stack udp_stack_t;
/* Internal udp control structure, one per open stream */
typedef struct udp_s {
/*
* Following fields up to udp_ipversion protected by conn_lock,
* and the fanout lock i.e.uf_lock. Need both locks to change the
* field, either lock is sufficient for reading the field.
*/
/*
* IP format that packets transmitted from this struct should use.
* Value can be IP4_VERSION or IPV6_VERSION.
*/
/* Written to only once at the time of opening the endpoint */
/* Following protected by udp_rwlock */
int udp_bound_if; /* IP*_BOUND_IF option */
/* Written to only once at the time of opening the endpoint */
/* Following protected by udp_rwlock */
/* Following 2 fields protected by the uf_lock */
/* Protected by udp_drain_lock */
/* Following protected by udp_rwlock */
} udp_t;
/* UDP Protocol header */
/* UDP Protocol header aligned */
typedef struct udpahdr_s {
} udpha_t;
#define UDP_STAT_UPDATE(us, x, n) \
#ifdef DEBUG
#else
#define UDP_DBGSTAT(us, x)
#endif /* DEBUG */
extern void udp_close_free(conn_t *);
extern void udp_quiesce_conn(conn_t *);
extern void udp_ddi_init(void);
extern void udp_ddi_destroy(void);
/*
* Object to represent database of options to search passed to
* {sock,tpi}optcom_req() interface routine to take care of option
* management and associated methods.
*/
extern optdb_obj_t udp_opt_obj;
extern uint_t udp_max_optsize;
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _UDP_IMPL_H */