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/*
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_NETI_H
#define _SYS_NETI_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <netinet/in.h>
#include <sys/int_types.h>
#include <sys/queue.h>
#include <sys/hook_impl.h>
#include <sys/netstack.h>
#ifdef __cplusplus
extern "C" {
#endif
#define NETINFO_VERSION 1
/*
* Network hooks framework stack protocol name
*/
#define NHF_INET "NHF_INET"
#define NHF_INET6 "NHF_INET6"
#define NHF_ARP "NHF_ARP"
/*
* Event identification
*/
#define NH_PHYSICAL_IN "PHYSICAL_IN"
#define NH_PHYSICAL_OUT "PHYSICAL_OUT"
#define NH_FORWARDING "FORWARDING"
#define NH_LOOPBACK_IN "LOOPBACK_IN"
#define NH_LOOPBACK_OUT "LOOPBACK_OUT"
#define NH_NIC_EVENTS "NIC_EVENTS"
/*
* Network NIC hardware checksum capability
*/
#define NET_HCK_NONE 0x00
#define NET_HCK_L3_FULL 0x01
#define NET_HCK_L3_PART 0x02
#define NET_HCK_L4_FULL 0x10
#define NET_HCK_L4_PART 0x20
#define NET_IS_HCK_L3_FULL(n, x) \
((net_ispartialchecksum(n, x) & NET_HCK_L3_FULL) == NET_HCK_L3_FULL)
#define NET_IS_HCK_L3_PART(n, x) \
((net_ispartialchecksum(n, x) & NET_HCK_L3_PART) == NET_HCK_L3_PART)
#define NET_IS_HCK_L4_FULL(n, x) \
((net_ispartialchecksum(n, x) & NET_HCK_L4_FULL) == NET_HCK_L4_FULL)
#define NET_IS_HCK_L4_PART(n, x) \
((net_ispartialchecksum(n, x) & NET_HCK_L4_PART) == NET_HCK_L4_PART)
#define NET_IS_HCK_L34_FULL(n, x) \
((net_ispartialchecksum(n, x) & (NET_HCK_L3_FULL|NET_HCK_L4_FULL)) \
== (NET_HCK_L3_FULL | NET_HCK_L4_FULL))
typedef uintptr_t phy_if_t;
typedef intptr_t lif_if_t;
typedef uintptr_t net_ifdata_t;
struct net_data;
typedef struct net_data *net_data_t;
/*
* Netinfo interface specification
*
* Netinfo provides an extensible and easy to use interface for
* accessing data and functionality already embedded within network
* code that exists within the kernel.
*/
typedef enum net_ifaddr {
NA_ADDRESS = 1,
NA_PEER,
NA_BROADCAST,
NA_NETMASK
} net_ifaddr_t;
typedef enum inject {
NI_QUEUE_IN = 1,
NI_QUEUE_OUT,
NI_DIRECT_OUT
} inject_t;
typedef struct net_inject {
mblk_t *ni_packet;
struct sockaddr_storage ni_addr;
phy_if_t ni_physical;
} net_inject_t;
/*
* net_info_t public interface
*/
typedef struct net_info {
int neti_version;
char *neti_protocol;
int (*neti_getifname)(phy_if_t, char *, const size_t,
netstack_t *);
int (*neti_getmtu)(phy_if_t, lif_if_t, netstack_t *);
int (*neti_getpmtuenabled)(netstack_t *);
int (*neti_getlifaddr)(phy_if_t, lif_if_t, size_t,
net_ifaddr_t [], void *, netstack_t *);
phy_if_t (*neti_phygetnext)(phy_if_t, netstack_t *);
phy_if_t (*neti_phylookup)(const char *, netstack_t *);
lif_if_t (*neti_lifgetnext)(phy_if_t, lif_if_t, netstack_t *);
int (*neti_inject)(inject_t, net_inject_t *, netstack_t *);
phy_if_t (*neti_routeto)(struct sockaddr *, netstack_t *);
int (*neti_ispartialchecksum)(mblk_t *);
int (*neti_isvalidchecksum)(mblk_t *);
} net_info_t;
/*
* Private data structures
*/
struct net_data {
LIST_ENTRY(net_data) netd_list;
net_info_t netd_info;
int netd_refcnt;
hook_family_int_t *netd_hooks;
netstack_t *netd_netstack;
};
typedef struct injection_s {
net_inject_t inj_data;
boolean_t inj_isv6;
void * inj_ptr;
} injection_t;
/*
* The ipif_id space is [0,MAX) but this interface wants to return [1,MAX] as
* a valid range of logical interface numbers so that it can return 0 to mean
* "end of list" with net_lifgetnext. Changing ipif_id's to use the [1,MAX]
* space is something to be considered for the future, if it is worthwhile.
*/
#define MAP_IPIF_ID(x) ((x) + 1)
#define UNMAP_IPIF_ID(x) (((x) > 0) ? (x) - 1 : (x))
/*
* neti stack instances
*/
struct neti_stack {
krwlock_t nts_netlock;
/* list of net_data_t */
LIST_HEAD(netd_listhead, net_data) nts_netd_head;
netstack_t *nts_netstack;
};
typedef struct neti_stack neti_stack_t;
/*
* Data management functions
*/
extern net_data_t net_register(const net_info_t *, netstackid_t);
extern net_data_t net_register_impl(const net_info_t *, netstack_t *);
extern int net_unregister(net_data_t);
extern net_data_t net_lookup(const char *, netstackid_t);
extern net_data_t net_lookup_impl(const char *, netstack_t *);
extern int net_release(net_data_t);
extern net_data_t net_walk(net_data_t, netstackid_t);
extern net_data_t net_walk_impl(net_data_t, netstack_t *);
/*
* Accessor functions
*/
extern int net_register_family(net_data_t, hook_family_t *);
extern int net_unregister_family(net_data_t, hook_family_t *);
extern hook_event_token_t net_register_event(net_data_t, hook_event_t *);
extern int net_unregister_event(net_data_t, hook_event_t *);
extern int net_register_hook(net_data_t, char *, hook_t *);
extern int net_unregister_hook(net_data_t, char *, hook_t *);
extern int net_getifname(net_data_t, phy_if_t, char *, const size_t);
extern int net_getmtu(net_data_t, phy_if_t, lif_if_t);
extern int net_getpmtuenabled(net_data_t);
extern int net_getlifaddr(net_data_t, phy_if_t, lif_if_t,
int, net_ifaddr_t [], void *);
extern phy_if_t net_phygetnext(net_data_t, phy_if_t);
extern phy_if_t net_phylookup(net_data_t, const char *);
extern lif_if_t net_lifgetnext(net_data_t, phy_if_t, lif_if_t);
extern int net_inject(net_data_t, inject_t, net_inject_t *);
extern phy_if_t net_routeto(net_data_t, struct sockaddr *);
extern int net_ispartialchecksum(net_data_t, mblk_t *);
extern int net_isvalidchecksum(net_data_t, mblk_t *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_NETI_H */
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