/* * 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 2006 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> #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); int (*neti_getmtu)(phy_if_t, lif_if_t); int (*neti_getpmtuenabled)(void); int (*neti_getlifaddr)(phy_if_t, lif_if_t, size_t, net_ifaddr_t [], void *); phy_if_t (*neti_phygetnext)(phy_if_t); phy_if_t (*neti_phylookup)(const char *); lif_if_t (*neti_lifgetnext)(phy_if_t, lif_if_t); int (*neti_inject)(inject_t, net_inject_t *); phy_if_t (*neti_routeto)(struct sockaddr *); 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; }; typedef struct injection_s { net_inject_t inj_data; boolean_t inj_isv6; } 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)) /* * Data management functions */ extern net_data_t net_register(const net_info_t *); extern int net_unregister(net_data_t); extern net_data_t net_lookup(const char *); extern int net_release(net_data_t); extern net_data_t net_walk(net_data_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 */