d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
90d6251228
freebsd-dev/sys/net/if_var.h
Alexander V. Chernikov df2b419a41 ifnet: add if_foreach_sleep() to allow ifnet iterations with sleep. 
Subscribers: imp, ae, glebius

Differential Revision: https://reviews.freebsd.org/D38904
2023-03-06 15:08:08 +00:00

729 lines
27 KiB
C
Raw Blame History

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* From: @(#)if.h 8.1 (Berkeley) 6/10/93
* $FreeBSD$
*/
#ifndef _NET_IF_VAR_H_
#define _NET_IF_VAR_H_
/*
* Structures defining a network interface, providing a packet
* transport mechanism (ala level 0 of the PUP protocols).
*
* Each interface accepts output datagrams of a specified maximum
* length, and provides higher level routines with input datagrams
* received from its medium.
*
* Output occurs when the routine if_output is called, with three parameters:
* (*ifp->if_output)(ifp, m, dst, ro)
* Here m is the mbuf chain to be sent and dst is the destination address.
* The output routine encapsulates the supplied datagram if necessary,
* and then transmits it on its medium.
*
* On input, each interface unwraps the data received by it, and either
* places it on the input queue of an internetwork datagram routine
* and posts the associated software interrupt, or passes the datagram to a raw
* packet input routine.
*
* Routines exist for locating interfaces by their addresses
* or for locating an interface on a certain network, as well as more general
* routing and gateway routines maintaining information used to locate
* interfaces. These routines live in the files if.c and route.c
*/
struct rtentry; /* ifa_rtrequest */
struct socket;
struct carp_if;
struct carp_softc;
struct ifvlantrunk;
struct route; /* if_output */
struct vnet;
struct ifmedia;
struct netmap_adapter;
struct debugnet_methods;
#ifdef _KERNEL
#include <sys/_eventhandler.h>
#include <sys/mbuf.h> /* ifqueue only? */
#include <sys/buf_ring.h>
#include <net/vnet.h>
#endif /* _KERNEL */
#include <sys/ck.h>
#include <sys/counter.h>
#include <sys/epoch.h>
#include <sys/lock.h> /* XXX */
#include <sys/mutex.h> /* struct ifqueue */
#include <sys/rwlock.h> /* XXX */
#include <sys/sx.h> /* XXX */
#include <sys/_task.h> /* if_link_task */
#define IF_DUNIT_NONE -1
#include <net/altq/if_altq.h>
CK_STAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */
CK_STAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */
CK_STAILQ_HEAD(ifmultihead, ifmultiaddr);
CK_STAILQ_HEAD(ifgrouphead, ifg_group);
#ifdef _KERNEL
VNET_DECLARE(struct pfil_head *, link_pfil_head);
#define V_link_pfil_head VNET(link_pfil_head)
#define PFIL_ETHER_NAME "ethernet"
#define HHOOK_IPSEC_INET 0
#define HHOOK_IPSEC_INET6 1
#define HHOOK_IPSEC_COUNT 2
VNET_DECLARE(struct hhook_head *, ipsec_hhh_in[HHOOK_IPSEC_COUNT]);
VNET_DECLARE(struct hhook_head *, ipsec_hhh_out[HHOOK_IPSEC_COUNT]);
#define V_ipsec_hhh_in VNET(ipsec_hhh_in)
#define V_ipsec_hhh_out VNET(ipsec_hhh_out)
#endif /* _KERNEL */
typedef enum {
IFCOUNTER_IPACKETS = 0,
IFCOUNTER_IERRORS,
IFCOUNTER_OPACKETS,
IFCOUNTER_OERRORS,
IFCOUNTER_COLLISIONS,
IFCOUNTER_IBYTES,
IFCOUNTER_OBYTES,
IFCOUNTER_IMCASTS,
IFCOUNTER_OMCASTS,
IFCOUNTER_IQDROPS,
IFCOUNTER_OQDROPS,
IFCOUNTER_NOPROTO,
IFCOUNTERS /* Array size. */
} ift_counter;
typedef void (*if_start_fn_t)(if_t);
typedef int (*if_ioctl_fn_t)(if_t, u_long, caddr_t);
typedef void (*if_init_fn_t)(void *);
typedef void (*if_input_fn_t)(struct ifnet *, struct mbuf *);
typedef int (*if_output_fn_t)
(struct ifnet *, struct mbuf *, const struct sockaddr *, struct route *);
typedef void (*if_qflush_fn_t)(if_t);
typedef int (*if_transmit_fn_t)(if_t, struct mbuf *);
typedef uint64_t (*if_get_counter_t)(if_t, ift_counter);
typedef void (*if_reassign_fn_t)(struct ifnet *, struct vnet *, char *);
struct ifnet_hw_tsomax {
u_int tsomaxbytes; /* TSO total burst length limit in bytes */
u_int tsomaxsegcount; /* TSO maximum segment count */
u_int tsomaxsegsize; /* TSO maximum segment size in bytes */
};
/* Interface encap request types */
typedef enum {
IFENCAP_LL = 1 /* pre-calculate link-layer header */
} ife_type;
/*
* The structure below allows to request various pre-calculated L2/L3 headers
* for different media. Requests varies by type (rtype field).
*
* IFENCAP_LL type: pre-calculates link header based on address family
* and destination lladdr.
*
* Input data fields:
* buf: pointer to destination buffer
* bufsize: buffer size
* flags: IFENCAP_FLAG_BROADCAST if destination is broadcast
* family: address family defined by AF_ constant.
* lladdr: pointer to link-layer address
* lladdr_len: length of link-layer address
* hdata: pointer to L3 header (optional, used for ARP requests).
* Output data fields:
* buf: encap data is stored here
* bufsize: resulting encap length is stored here
* lladdr_off: offset of link-layer address from encap hdr start
* hdata: L3 header may be altered if necessary
*/
struct if_encap_req {
u_char *buf; /* Destination buffer (w) */
size_t bufsize; /* size of provided buffer (r) */
ife_type rtype; /* request type (r) */
uint32_t flags; /* Request flags (r) */
int family; /* Address family AF_* (r) */
int lladdr_off; /* offset from header start (w) */
int lladdr_len; /* lladdr length (r) */
char *lladdr; /* link-level address pointer (r) */
char *hdata; /* Upper layer header data (rw) */
};
#define IFENCAP_FLAG_BROADCAST 0x02 /* Destination is broadcast */
/*
* Network interface send tag support. The storage of "struct
* m_snd_tag" comes from the network driver and it is free to allocate
* as much additional space as it wants for its own use.
*/
struct ktls_session;
struct m_snd_tag;
#define IF_SND_TAG_TYPE_RATE_LIMIT 0
#define IF_SND_TAG_TYPE_UNLIMITED 1
#define IF_SND_TAG_TYPE_TLS 2
#define IF_SND_TAG_TYPE_TLS_RATE_LIMIT 3
#define IF_SND_TAG_TYPE_TLS_RX 4
#define IF_SND_TAG_TYPE_MAX 5
struct if_snd_tag_alloc_header {
uint32_t type; /* send tag type, see IF_SND_TAG_XXX */
uint32_t flowid; /* mbuf hash value */
uint32_t flowtype; /* mbuf hash type */
uint8_t numa_domain; /* numa domain of associated inp */
};
struct if_snd_tag_alloc_rate_limit {
struct if_snd_tag_alloc_header hdr;
uint64_t max_rate; /* in bytes/s */
uint32_t flags; /* M_NOWAIT or M_WAITOK */
uint32_t reserved; /* alignment */
};
struct if_snd_tag_alloc_tls {
struct if_snd_tag_alloc_header hdr;
struct inpcb *inp;
const struct ktls_session *tls;
};
struct if_snd_tag_alloc_tls_rx {
struct if_snd_tag_alloc_header hdr;
struct inpcb *inp;
const struct ktls_session *tls;
uint16_t vlan_id; /* valid if non-zero */
};
struct if_snd_tag_alloc_tls_rate_limit {
struct if_snd_tag_alloc_header hdr;
struct inpcb *inp;
const struct ktls_session *tls;
uint64_t max_rate; /* in bytes/s */
};
struct if_snd_tag_rate_limit_params {
uint64_t max_rate; /* in bytes/s */
uint32_t queue_level; /* 0 (empty) .. 65535 (full) */
#define IF_SND_QUEUE_LEVEL_MIN 0
#define IF_SND_QUEUE_LEVEL_MAX 65535
uint32_t flags; /* M_NOWAIT or M_WAITOK */
};
struct if_snd_tag_modify_tls_rx {
/* TCP sequence number of TLS header in host endian format */
uint32_t tls_hdr_tcp_sn;
/*
* TLS record length, including all headers, data and trailers.
* If the tls_rec_length is zero, it means HW encryption resumed.
*/
uint32_t tls_rec_length;
/* TLS sequence number in host endian format */
uint64_t tls_seq_number;
};
union if_snd_tag_alloc_params {
struct if_snd_tag_alloc_header hdr;
struct if_snd_tag_alloc_rate_limit rate_limit;
struct if_snd_tag_alloc_rate_limit unlimited;
struct if_snd_tag_alloc_tls tls;
struct if_snd_tag_alloc_tls_rx tls_rx;
struct if_snd_tag_alloc_tls_rate_limit tls_rate_limit;
};
union if_snd_tag_modify_params {
struct if_snd_tag_rate_limit_params rate_limit;
struct if_snd_tag_rate_limit_params unlimited;
struct if_snd_tag_rate_limit_params tls_rate_limit;
struct if_snd_tag_modify_tls_rx tls_rx;
};
union if_snd_tag_query_params {
struct if_snd_tag_rate_limit_params rate_limit;
struct if_snd_tag_rate_limit_params unlimited;
struct if_snd_tag_rate_limit_params tls_rate_limit;
};
typedef int (if_snd_tag_alloc_t)(struct ifnet *, union if_snd_tag_alloc_params *,
struct m_snd_tag **);
typedef int (if_snd_tag_modify_t)(struct m_snd_tag *, union if_snd_tag_modify_params *);
typedef int (if_snd_tag_query_t)(struct m_snd_tag *, union if_snd_tag_query_params *);
typedef void (if_snd_tag_free_t)(struct m_snd_tag *);
typedef struct m_snd_tag *(if_next_send_tag_t)(struct m_snd_tag *);
struct if_snd_tag_sw {
if_snd_tag_modify_t *snd_tag_modify;
if_snd_tag_query_t *snd_tag_query;
if_snd_tag_free_t *snd_tag_free;
if_next_send_tag_t *next_snd_tag;
u_int type; /* One of IF_SND_TAG_TYPE_*. */
};
/* Query return flags */
#define RT_NOSUPPORT 0x00000000 /* Not supported */
#define RT_IS_INDIRECT 0x00000001 /*
* Interface like a lagg, select
* the actual interface for
* capabilities.
*/
#define RT_IS_SELECTABLE 0x00000002 /*
* No rate table, you select
* rates and the first
* number_of_rates are created.
*/
#define RT_IS_FIXED_TABLE 0x00000004 /* A fixed table is attached */
#define RT_IS_UNUSABLE 0x00000008 /* It is not usable for this */
#define RT_IS_SETUP_REQ 0x00000010 /* The interface setup must be called before use */
struct if_ratelimit_query_results {
const uint64_t *rate_table; /* Pointer to table if present */
uint32_t flags; /* Flags indicating results */
uint32_t max_flows; /* Max flows using, 0=unlimited */
uint32_t number_of_rates; /* How many unique rates can be created */
uint32_t min_segment_burst; /* The amount the adapter bursts at each send */
};
typedef void (if_ratelimit_query_t)(struct ifnet *,
struct if_ratelimit_query_results *);
typedef int (if_ratelimit_setup_t)(struct ifnet *, uint64_t, uint32_t);
#define IF_NODOM 255
/*
* Locks for address lists on the network interface.
*/
#define IF_ADDR_LOCK_INIT(if) mtx_init(&(if)->if_addr_lock, "if_addr_lock", NULL, MTX_DEF)
#define IF_ADDR_LOCK_DESTROY(if) mtx_destroy(&(if)->if_addr_lock)
#define IF_ADDR_WLOCK(if) mtx_lock(&(if)->if_addr_lock)
#define IF_ADDR_WUNLOCK(if) mtx_unlock(&(if)->if_addr_lock)
#define IF_ADDR_LOCK_ASSERT(if) MPASS(in_epoch(net_epoch_preempt) || mtx_owned(&(if)->if_addr_lock))
#define IF_ADDR_WLOCK_ASSERT(if) mtx_assert(&(if)->if_addr_lock, MA_OWNED)
#ifdef _KERNEL
/* interface link layer address change event */
typedef void (*iflladdr_event_handler_t)(void *, struct ifnet *);
EVENTHANDLER_DECLARE(iflladdr_event, iflladdr_event_handler_t);
/* interface address change event */
typedef void (*ifaddr_event_handler_t)(void *, struct ifnet *);
EVENTHANDLER_DECLARE(ifaddr_event, ifaddr_event_handler_t);
typedef void (*ifaddr_event_ext_handler_t)(void *, struct ifnet *,
struct ifaddr *, int);
EVENTHANDLER_DECLARE(ifaddr_event_ext, ifaddr_event_ext_handler_t);
#define IFADDR_EVENT_ADD 0
#define IFADDR_EVENT_DEL 1
/* new interface arrival event */
typedef void (*ifnet_arrival_event_handler_t)(void *, struct ifnet *);
EVENTHANDLER_DECLARE(ifnet_arrival_event, ifnet_arrival_event_handler_t);
/* interface departure event */
typedef void (*ifnet_departure_event_handler_t)(void *, struct ifnet *);
EVENTHANDLER_DECLARE(ifnet_departure_event, ifnet_departure_event_handler_t);
/* Interface link state change event */
typedef void (*ifnet_link_event_handler_t)(void *, struct ifnet *, int);
EVENTHANDLER_DECLARE(ifnet_link_event, ifnet_link_event_handler_t);
/* Interface up/down event */
#define IFNET_EVENT_UP 0
#define IFNET_EVENT_DOWN 1
#define IFNET_EVENT_PCP 2 /* priority code point, PCP */
#define IFNET_EVENT_UPDATE_BAUDRATE 3
typedef void (*ifnet_event_fn)(void *, struct ifnet *ifp, int event);
EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn);
/*
* interface groups
*/
struct ifg_group {
char ifg_group[IFNAMSIZ];
u_int ifg_refcnt;
void *ifg_pf_kif;
CK_STAILQ_HEAD(, ifg_member) ifg_members; /* (CK_) */
CK_STAILQ_ENTRY(ifg_group) ifg_next; /* (CK_) */
};
struct ifg_member {
CK_STAILQ_ENTRY(ifg_member) ifgm_next; /* (CK_) */
struct ifnet *ifgm_ifp;
};
struct ifg_list {
struct ifg_group *ifgl_group;
CK_STAILQ_ENTRY(ifg_list) ifgl_next; /* (CK_) */
};
#ifdef _SYS_EVENTHANDLER_H_
/* group attach event */
typedef void (*group_attach_event_handler_t)(void *, struct ifg_group *);
EVENTHANDLER_DECLARE(group_attach_event, group_attach_event_handler_t);
/* group detach event */
typedef void (*group_detach_event_handler_t)(void *, struct ifg_group *);
EVENTHANDLER_DECLARE(group_detach_event, group_detach_event_handler_t);
/* group change event */
typedef void (*group_change_event_handler_t)(void *, const char *);
EVENTHANDLER_DECLARE(group_change_event, group_change_event_handler_t);
#endif /* _SYS_EVENTHANDLER_H_ */
#define IF_AFDATA_LOCK_INIT(ifp) \
mtx_init(&(ifp)->if_afdata_lock, "if_afdata", NULL, MTX_DEF)
#define IF_AFDATA_WLOCK(ifp) mtx_lock(&(ifp)->if_afdata_lock)
#define IF_AFDATA_WUNLOCK(ifp) mtx_unlock(&(ifp)->if_afdata_lock)
#define IF_AFDATA_LOCK(ifp) IF_AFDATA_WLOCK(ifp)
#define IF_AFDATA_UNLOCK(ifp) IF_AFDATA_WUNLOCK(ifp)
#define IF_AFDATA_TRYLOCK(ifp) mtx_trylock(&(ifp)->if_afdata_lock)
#define IF_AFDATA_DESTROY(ifp) mtx_destroy(&(ifp)->if_afdata_lock)
#define IF_AFDATA_LOCK_ASSERT(ifp) MPASS(in_epoch(net_epoch_preempt) || mtx_owned(&(ifp)->if_afdata_lock))
#define IF_AFDATA_WLOCK_ASSERT(ifp) mtx_assert(&(ifp)->if_afdata_lock, MA_OWNED)
#define IF_AFDATA_UNLOCK_ASSERT(ifp) mtx_assert(&(ifp)->if_afdata_lock, MA_NOTOWNED)
/*
* 72 was chosen below because it is the size of a TCP/IP
* header (40) + the minimum mss (32).
*/
#define IF_MINMTU 72
#define IF_MAXMTU 65535
#define TOEDEV(ifp) if_getllsoftc(ifp)
#define SETTOEDEV(ifp, sc) if_setllsoftc((ifp), (sc))
/*
* The ifaddr structure contains information about one address
* of an interface. They are maintained by the different address families,
* are allocated and attached when an address is set, and are linked
* together so all addresses for an interface can be located.
*
* NOTE: a 'struct ifaddr' is always at the beginning of a larger
* chunk of malloc'ed memory, where we store the three addresses
* (ifa_addr, ifa_dstaddr and ifa_netmask) referenced here.
*/
struct ifaddr {
struct sockaddr *ifa_addr; /* address of interface */
struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
#define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
struct sockaddr *ifa_netmask; /* used to determine subnet */
struct ifnet *ifa_ifp; /* back-pointer to interface */
struct carp_softc *ifa_carp; /* pointer to CARP data */
CK_STAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */
u_short ifa_flags; /* mostly rt_flags for cloning */
#define IFA_ROUTE RTF_UP /* route installed */
#define IFA_RTSELF RTF_HOST /* loopback route to self installed */
u_int ifa_refcnt; /* references to this structure */
counter_u64_t ifa_ipackets;
counter_u64_t ifa_opackets;
counter_u64_t ifa_ibytes;
counter_u64_t ifa_obytes;
struct epoch_context ifa_epoch_ctx;
};
struct ifaddr * ifa_alloc(size_t size, int flags);
void ifa_free(struct ifaddr *ifa);
void ifa_ref(struct ifaddr *ifa);
int __result_use_check ifa_try_ref(struct ifaddr *ifa);
/*
* Multicast address structure. This is analogous to the ifaddr
* structure except that it keeps track of multicast addresses.
*/
#define IFMA_F_ENQUEUED 0x1
struct ifmultiaddr {
CK_STAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */
struct sockaddr *ifma_addr; /* address this membership is for */
struct sockaddr *ifma_lladdr; /* link-layer translation, if any */
struct ifnet *ifma_ifp; /* back-pointer to interface */
u_int ifma_refcount; /* reference count */
int ifma_flags;
void *ifma_protospec; /* protocol-specific state, if any */
struct ifmultiaddr *ifma_llifma; /* pointer to ifma for ifma_lladdr */
struct epoch_context ifma_epoch_ctx;
};
extern struct sx ifnet_sxlock;
#define IFNET_WLOCK() sx_xlock(&ifnet_sxlock)
#define IFNET_WUNLOCK() sx_xunlock(&ifnet_sxlock)
#define IFNET_RLOCK_ASSERT() sx_assert(&ifnet_sxlock, SA_SLOCKED)
#define IFNET_WLOCK_ASSERT() sx_assert(&ifnet_sxlock, SA_XLOCKED)
#define IFNET_RLOCK() sx_slock(&ifnet_sxlock)
#define IFNET_RUNLOCK() sx_sunlock(&ifnet_sxlock)
/*
* Look up an ifnet given its index. The returned value protected from
* being freed by the network epoch. The _ref variant also acquires a
* reference that must be freed using if_rele().
*/
struct ifnet *ifnet_byindex(u_int);
struct ifnet *ifnet_byindex_ref(u_int);
/*
* ifnet_byindexgen() looks up ifnet by index and generation count,
* attempting to restore a weak pointer that had been stored across
* the epoch.
*/
struct ifnet *ifnet_byindexgen(uint16_t idx, uint16_t gen);
VNET_DECLARE(struct ifnethead, ifnet);
VNET_DECLARE(struct ifgrouphead, ifg_head);
VNET_DECLARE(struct ifnet *, loif); /* first loopback interface */
#define V_ifnet VNET(ifnet)
#define V_ifg_head VNET(ifg_head)
#define V_loif VNET(loif)
#ifdef MCAST_VERBOSE
#define MCDPRINTF printf
#else
#define MCDPRINTF(...)
#endif
int if_addgroup(struct ifnet *, const char *);
int if_delgroup(struct ifnet *, const char *);
int if_addmulti(struct ifnet *, struct sockaddr *, struct ifmultiaddr **);
int if_allmulti(struct ifnet *, int);
struct ifnet* if_alloc(u_char);
struct ifnet* if_alloc_dev(u_char, device_t dev);
void if_attach(struct ifnet *);
void if_dead(struct ifnet *);
int if_delmulti(struct ifnet *, struct sockaddr *);
void if_delmulti_ifma(struct ifmultiaddr *);
void if_delmulti_ifma_flags(struct ifmultiaddr *, int flags);
void if_detach(struct ifnet *);
void if_purgeaddrs(struct ifnet *);
void if_delallmulti(struct ifnet *);
void if_down(struct ifnet *);
struct ifmultiaddr *
if_findmulti(struct ifnet *, const struct sockaddr *);
void if_freemulti(struct ifmultiaddr *ifma);
void if_free(struct ifnet *);
void if_initname(struct ifnet *, const char *, int);
void if_link_state_change(struct ifnet *, int);
int if_printf(struct ifnet *, const char *, ...) __printflike(2, 3);
int if_log(struct ifnet *, int, const char *, ...) __printflike(3, 4);
void if_ref(struct ifnet *);
void if_rele(struct ifnet *);
bool __result_use_check if_try_ref(struct ifnet *);
int if_setlladdr(struct ifnet *, const u_char *, int);
int if_tunnel_check_nesting(struct ifnet *, struct mbuf *, uint32_t, int);
void if_up(struct ifnet *);
int ifioctl(struct socket *, u_long, caddr_t, struct thread *);
int ifpromisc(struct ifnet *, int);
struct ifnet *ifunit(const char *);
struct ifnet *ifunit_ref(const char *);
int ifa_add_loopback_route(struct ifaddr *, struct sockaddr *);
int ifa_del_loopback_route(struct ifaddr *, struct sockaddr *);
int ifa_switch_loopback_route(struct ifaddr *, struct sockaddr *);
struct ifaddr *ifa_ifwithaddr(const struct sockaddr *);
int ifa_ifwithaddr_check(const struct sockaddr *);
struct ifaddr *ifa_ifwithbroadaddr(const struct sockaddr *, int);
struct ifaddr *ifa_ifwithdstaddr(const struct sockaddr *, int);
struct ifaddr *ifa_ifwithnet(const struct sockaddr *, int, int);
struct ifaddr *ifa_ifwithroute(int, const struct sockaddr *,
const struct sockaddr *, u_int);
struct ifaddr *ifaof_ifpforaddr(const struct sockaddr *, struct ifnet *);
int ifa_preferred(struct ifaddr *, struct ifaddr *);
int if_simloop(struct ifnet *ifp, struct mbuf *m, int af, int hlen);
typedef void *if_com_alloc_t(u_char type, struct ifnet *ifp);
typedef void if_com_free_t(void *com, u_char type);
void if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f);
void if_deregister_com_alloc(u_char type);
void if_data_copy(struct ifnet *, struct if_data *);
uint64_t if_get_counter_default(struct ifnet *, ift_counter);
void if_inc_counter(struct ifnet *, ift_counter, int64_t);
#define IF_LLADDR(ifp) \
LLADDR((struct sockaddr_dl *)((ifp)->if_addr->ifa_addr))
uint64_t if_setbaudrate(if_t ifp, uint64_t baudrate);
uint64_t if_getbaudrate(const if_t ifp);
int if_setcapabilities(if_t ifp, int capabilities);
int if_setcapabilitiesbit(if_t ifp, int setbit, int clearbit);
int if_getcapabilities(const if_t ifp);
int if_togglecapenable(if_t ifp, int togglecap);
int if_setcapenable(if_t ifp, int capenable);
int if_setcapenablebit(if_t ifp, int setcap, int clearcap);
int if_getcapenable(const if_t ifp);
int if_setcapabilities2(if_t ifp, int capabilities);
int if_setcapabilities2bit(if_t ifp, int setbit, int clearbit);
int if_getcapabilities2(const if_t ifp);
int if_togglecapenable2(if_t ifp, int togglecap);
int if_setcapenable2(if_t ifp, int capenable);
int if_setcapenable2bit(if_t ifp, int setcap, int clearcap);
int if_getcapenable2(const if_t ifp);
int if_getdunit(const if_t ifp);
int if_getindex(const if_t ifp);
int if_getidxgen(const if_t ifp);
const char *if_getdname(const if_t ifp);
void if_setdname(if_t ifp, const char *name);
const char *if_name(if_t ifp);
int if_setname(if_t ifp, const char *name);
void if_setdescr(if_t ifp, char *descrbuf);
char *if_allocdescr(size_t sz, int malloc_flag);
void if_freedescr(char *descrbuf);
int if_getalloctype(const if_t ifp);
int if_gettype(const if_t ifp);
int if_setdev(if_t ifp, void *dev);
int if_setdrvflagbits(if_t ifp, int if_setflags, int clear_flags);
int if_getdrvflags(const if_t ifp);
int if_setdrvflags(if_t ifp, int flags);
int if_getlinkstate(if_t ifp);
int if_clearhwassist(if_t ifp);
int if_sethwassistbits(if_t ifp, int toset, int toclear);
int if_sethwassist(if_t ifp, int hwassist_bit);
int if_gethwassist(const if_t ifp);
int if_togglehwassist(if_t ifp, int toggle_bits);
int if_setsoftc(if_t ifp, void *softc);
void *if_getsoftc(if_t ifp);
int if_setflags(if_t ifp, int flags);
void if_setllsoftc(if_t ifp, void *softc);
void *if_getllsoftc(if_t ifp);
u_int if_getfib(if_t ifp);
uint8_t if_getaddrlen(if_t ifp);
int if_gethwaddr(const if_t ifp, struct ifreq *);
const uint8_t *if_getbroadcastaddr(const if_t ifp);
void if_setbroadcastaddr(if_t ifp, const uint8_t *);
int if_setmtu(if_t ifp, int mtu);
int if_getmtu(const if_t ifp);
int if_getmtu_family(const if_t ifp, int family);
void if_notifymtu(if_t ifp);
int if_setflagbits(if_t ifp, int set, int clear);
int if_setflags(if_t ifp, int flags);
int if_getflags(const if_t ifp);
int if_getnumadomain(if_t ifp);
int if_sendq_empty(if_t ifp);
int if_setsendqready(if_t ifp);
int if_setsendqlen(if_t ifp, int tx_desc_count);
int if_sethwtsomax(if_t ifp, u_int if_hw_tsomax);
int if_sethwtsomaxsegcount(if_t ifp, u_int if_hw_tsomaxsegcount);
int if_sethwtsomaxsegsize(if_t ifp, u_int if_hw_tsomaxsegsize);
u_int if_gethwtsomax(const if_t ifp);
u_int if_gethwtsomaxsegcount(const if_t ifp);
u_int if_gethwtsomaxsegsize(const if_t ifp);
void if_setnetmapadapter(if_t ifp, struct netmap_adapter *na);
struct netmap_adapter *if_getnetmapadapter(if_t ifp);
void if_input(if_t ifp, struct mbuf* sendmp);
int if_sendq_prepend(if_t ifp, struct mbuf *m);
struct mbuf *if_dequeue(if_t ifp);
int if_setifheaderlen(if_t ifp, int len);
void if_setrcvif(struct mbuf *m, if_t ifp);
void if_setvtag(struct mbuf *m, u_int16_t tag);
u_int16_t if_getvtag(struct mbuf *m);
int if_vlantrunkinuse(if_t ifp);
caddr_t if_getlladdr(const if_t ifp);
struct vnet *if_getvnet(const if_t ifp);
void *if_gethandle(u_char);
void if_bpfmtap(if_t ifp, struct mbuf *m);
void if_etherbpfmtap(if_t ifp, struct mbuf *m);
void if_vlancap(if_t ifp);
int if_transmit(if_t ifp, struct mbuf *m);
void if_init(if_t ifp, void *ctx);
int if_resolvemulti(if_t ifp, struct sockaddr **, struct sockaddr *);
uint64_t if_getcounter(if_t ifp, ift_counter counter);
struct label *if_getmaclabel(if_t ifp);
void if_setmaclabel(if_t ifp, struct label *label);
struct bpf_if *if_getbpf(if_t ifp);
uint8_t if_getpcp(if_t ifp);
void *if_getl2com(if_t ifp);
struct ifvlantrunk *if_getvlantrunk(if_t ifp);
bool if_altq_is_enabled(if_t ifp);
void *if_getafdata(if_t ifp, int);
int if_snd_tag_alloc(struct ifnet *ifp, union if_snd_tag_alloc_params *params,
struct m_snd_tag **mstp);
/*
* Traversing through interface address lists.
*/
struct sockaddr_dl;
typedef u_int iflladdr_cb_t(void *, struct sockaddr_dl *, u_int);
u_int if_foreach_lladdr(if_t, iflladdr_cb_t, void *);
u_int if_foreach_llmaddr(if_t, iflladdr_cb_t, void *);
u_int if_lladdr_count(if_t);
u_int if_llmaddr_count(if_t);
int if_getamcount(const if_t ifp);
struct ifaddr * if_getifaddr(const if_t ifp);
typedef u_int if_addr_cb_t(void *, struct ifaddr *, u_int);
u_int if_foreach_addr_type(if_t ifp, int type, if_addr_cb_t cb, void *cb_arg);
typedef int (*if_foreach_cb_t)(if_t, void *);
typedef bool (*if_foreach_match_t)(if_t, void *);
int if_foreach(if_foreach_cb_t, void *);
int if_foreach_sleep(if_foreach_match_t, void *, if_foreach_cb_t, void *);
/* Functions */
void if_setinitfn(if_t ifp, if_init_fn_t);
void if_setinputfn(if_t ifp, if_input_fn_t);
if_input_fn_t if_getinputfn(if_t ifp);
void if_setioctlfn(if_t ifp, if_ioctl_fn_t);
void if_setoutputfn(if_t ifp, if_output_fn_t);
void if_setstartfn(if_t ifp, if_start_fn_t);
if_start_fn_t if_getstartfn(if_t ifp);
void if_settransmitfn(if_t ifp, if_transmit_fn_t);
if_transmit_fn_t if_gettransmitfn(if_t ifp);
void if_setqflushfn(if_t ifp, if_qflush_fn_t);
void if_setgetcounterfn(if_t ifp, if_get_counter_t);
void if_setsndtagallocfn(if_t ifp, if_snd_tag_alloc_t);
void if_setdebugnet_methods(struct ifnet *, struct debugnet_methods *);
void if_setreassignfn(if_t ifp, if_reassign_fn_t);
void if_setratelimitqueryfn(if_t ifp, if_ratelimit_query_t);
/* TSO */
void if_hw_tsomax_common(if_t ifp, struct ifnet_hw_tsomax *);
int if_hw_tsomax_update(if_t ifp, struct ifnet_hw_tsomax *);
/* accessors for struct ifreq */
void *ifr_data_get_ptr(void *ifrp);
void *ifr_buffer_get_buffer(void *data);
size_t ifr_buffer_get_length(void *data);
int ifhwioctl(u_long, struct ifnet *, caddr_t, struct thread *);
#ifdef DEVICE_POLLING
enum poll_cmd { POLL_ONLY, POLL_AND_CHECK_STATUS };
typedef int poll_handler_t(if_t ifp, enum poll_cmd cmd, int count);
int ether_poll_register(poll_handler_t *h, if_t ifp);
int ether_poll_deregister(if_t ifp);
#endif /* DEVICE_POLLING */
#endif /* _KERNEL */
#include <net/if_private.h> /* XXX: temporary until drivers converted. */
#include <net/ifq.h> /* XXXAO: temporary unconditional include */
#endif /* !_NET_IF_VAR_H_ */
Reference in New Issue View Git Blame Copy Permalink