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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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Copyright 2018, Joyent, Inc.
*/
#ifndef _SYS_NETI_H
#define _SYS_NETI_H
#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
struct msgb; /* avoiding sys/stream.h here */
#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"
#define NHF_VIONA "NHF_VIONA"
/*
* 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"
#define NH_OBSERVE "OBSERVING"
/*
* 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;
typedef id_t netid_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;
/*
* net_inject - public interface
*/
typedef struct net_inject {
int ni_version;
netid_t ni_netid;
struct msgb *ni_packet;
struct sockaddr_storage ni_addr;
phy_if_t ni_physical;
} net_inject_t;
typedef struct net_data *net_handle_t;
/*
* net_protocol_t private interface
*/
struct net_protocol_s {
int netp_version;
char *netp_name;
int (*netp_getifname)(net_handle_t, phy_if_t, char *,
const size_t);
int (*netp_getmtu)(net_handle_t, phy_if_t, lif_if_t);
int (*netp_getpmtuenabled)(net_handle_t);
int (*netp_getlifaddr)(net_handle_t, phy_if_t, lif_if_t,
size_t, net_ifaddr_t [], void *);
int (*neti_getlifzone)(net_handle_t, phy_if_t, lif_if_t,
zoneid_t *);
int (*neti_getlifflags)(net_handle_t, phy_if_t, lif_if_t,
uint64_t *);
phy_if_t (*netp_phygetnext)(net_handle_t, phy_if_t);
phy_if_t (*netp_phylookup)(net_handle_t, const char *);
lif_if_t (*netp_lifgetnext)(net_handle_t, phy_if_t, lif_if_t);
int (*netp_inject)(net_handle_t, inject_t, net_inject_t *);
phy_if_t (*netp_routeto)(net_handle_t, struct sockaddr *,
struct sockaddr *);
int (*netp_ispartialchecksum)(net_handle_t, struct msgb *);
int (*netp_isvalidchecksum)(net_handle_t, struct msgb *);
};
typedef struct net_protocol_s net_protocol_t;
/*
* Private data structures
*/
struct net_data {
LIST_ENTRY(net_data) netd_list;
net_protocol_t netd_info;
int netd_refcnt;
hook_family_int_t *netd_hooks;
struct neti_stack_s *netd_stack;
int netd_condemned;
};
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))
struct net_instance_s {
int nin_version;
char *nin_name;
void *(*nin_create)(const netid_t);
void (*nin_destroy)(const netid_t, void *);
void (*nin_shutdown)(const netid_t, void *);
};
typedef struct net_instance_s net_instance_t;
struct net_instance_int_s {
LIST_ENTRY(net_instance_int_s) nini_next;
uint_t nini_ref;
void *nini_created;
struct net_instance_int_s *nini_parent;
net_instance_t *nini_instance;
hook_notify_t nini_notify;
uint32_t nini_flags;
kcondvar_t nini_cv;
boolean_t nini_condemned;
};
typedef struct net_instance_int_s net_instance_int_t;
LIST_HEAD(nini_head_s, net_instance_int_s);
typedef struct nini_head_s nini_head_t;
#define nini_version nini_instance->nin_version
#define nini_name nini_instance->nin_name
#define nini_create nini_instance->nin_create
#define nini_destroy nini_instance->nin_destroy
#define nini_shutdown nini_instance->nin_shutdown
/*
* netinfo stack instances
*/
struct neti_stack_s {
kmutex_t nts_lock;
LIST_ENTRY(neti_stack_s) nts_next;
netid_t nts_id;
zoneid_t nts_zoneid;
netstackid_t nts_stackid;
netstack_t *nts_netstack;
nini_head_t nts_instances;
uint32_t nts_flags;
kcondvar_t nts_cv;
/* list of net_handle_t */
LIST_HEAD(netd_listhead, net_data) nts_netd_head;
};
typedef struct neti_stack_s neti_stack_t;
LIST_HEAD(neti_stack_head_s, neti_stack_s);
typedef struct neti_stack_head_s neti_stack_head_t;
/*
* Internal functions that need to be exported within the module.
*/
extern void neti_init(void);
extern void neti_fini(void);
extern neti_stack_t *net_getnetistackbyid(netid_t);
extern netstackid_t net_getnetstackidbynetid(netid_t);
extern netid_t net_getnetidbynetstackid(netstackid_t);
extern netid_t net_zoneidtonetid(zoneid_t);
extern zoneid_t net_getzoneidbynetid(netid_t);
/*
* Functions available for public use.
*/
extern hook_event_token_t net_event_register(net_handle_t, hook_event_t *);
extern int net_event_shutdown(net_handle_t, hook_event_t *);
extern int net_event_unregister(net_handle_t, hook_event_t *);
extern int net_event_notify_register(net_handle_t, char *,
hook_notify_fn_t, void *);
extern int net_event_notify_unregister(net_handle_t, char *, hook_notify_fn_t);
extern int net_family_register(net_handle_t, hook_family_t *);
extern int net_family_shutdown(net_handle_t, hook_family_t *);
extern int net_family_unregister(net_handle_t, hook_family_t *);
extern int net_hook_register(net_handle_t, char *, hook_t *);
extern int net_hook_unregister(net_handle_t, char *, hook_t *);
extern int net_inject(net_handle_t, inject_t, net_inject_t *);
extern net_inject_t *net_inject_alloc(const int);
extern void net_inject_free(net_inject_t *);
extern net_instance_t *net_instance_alloc(const int version);
extern void net_instance_free(net_instance_t *);
extern int net_instance_register(net_instance_t *);
extern int net_instance_unregister(net_instance_t *);
extern int net_instance_notify_register(netid_t, hook_notify_fn_t, void *);
extern int net_instance_notify_unregister(netid_t netid, hook_notify_fn_t);
extern kstat_t *net_kstat_create(netid_t, char *, int, char *, char *,
uchar_t, ulong_t, uchar_t);
extern void net_kstat_delete(netid_t, kstat_t *);
extern net_handle_t net_protocol_lookup(netid_t, const char *);
extern net_handle_t net_protocol_register(netid_t, const net_protocol_t *);
extern int net_protocol_release(net_handle_t);
extern int net_protocol_unregister(net_handle_t);
extern net_handle_t net_protocol_walk(netid_t, net_handle_t);
extern int net_protocol_notify_register(net_handle_t, hook_notify_fn_t, void *);
extern int net_protocol_notify_unregister(net_handle_t, hook_notify_fn_t);
extern int net_getifname(net_handle_t, phy_if_t, char *, const size_t);
extern int net_getmtu(net_handle_t, phy_if_t, lif_if_t);
extern int net_getpmtuenabled(net_handle_t);
extern int net_getlifaddr(net_handle_t, phy_if_t, lif_if_t,
int, net_ifaddr_t [], void *);
extern zoneid_t net_getlifzone(net_handle_t, phy_if_t, lif_if_t, zoneid_t *);
extern int net_getlifflags(net_handle_t, phy_if_t, lif_if_t, uint64_t *);
extern phy_if_t net_phygetnext(net_handle_t, phy_if_t);
extern phy_if_t net_phylookup(net_handle_t, const char *);
extern lif_if_t net_lifgetnext(net_handle_t, phy_if_t, lif_if_t);
extern phy_if_t net_routeto(net_handle_t, struct sockaddr *,
struct sockaddr *);
extern int net_ispartialchecksum(net_handle_t, struct msgb *);
extern int net_isvalidchecksum(net_handle_t, struct msgb *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_NETI_H */
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