udp_impl.h revision 3e95bd4ab92abca814bd28e854607d1975c7dc88
/*
* 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
*/
/*
*/
#ifndef _UDP_IMPL_H
#define _UDP_IMPL_H
/*
* 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>
#include <inet/tunables.h>
#define UDP_MOD_ID 5607
/*
* 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;
/* Kstats */
typedef struct udp_stat { /* Class "net" kstats */
#ifdef DEBUG
#endif
} udp_stat_t;
#define UDP_NUM_EPRIV_PORTS 64
/* Default buffer size and flow control wake up threshold. */
#define UDP_RECV_LOWATER 128
#define UDP_XMIT_LOWATER 1024
/*
* UDP stack instances
*/
struct udp_stack {
int us_num_epriv_ports;
/* Hint not protected by any lock */
/* UDP tunables table */
struct mod_prop_info_s *us_propinfo_tbl;
/*
* 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 {
/*
* The addresses and ports in the conn_t and udp_state are protected by
* conn_lock and the fanout lock i.e. uf_lock. Need both locks to change
* the fields, either lock is sufficient for reading the field.
* conn_lock also protects the content of udp_t.
*/
/* Written to only once at the time of opening the endpoint */
udp_pad_to_bit_31 : 29;
/* Following 2 fields protected by the uf_lock */
/* Set at open time and never changed */
int udp_delayed_error;
struct sockaddr_storage udp_delayed_addr;
} udp_t;
/* 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_ddi_g_init(void);
extern void udp_ddi_g_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;
extern sock_downcalls_t sock_udp_downcalls;
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _UDP_IMPL_H */