diff --git a/sys/net/if.h b/sys/net/if.h index b46cc0fa4747..888e7d5d7320 100644 --- a/sys/net/if.h +++ b/sys/net/if.h @@ -1,851 +1,694 @@ /*- * 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. * * @(#)if.h 8.1 (Berkeley) 6/10/93 * $FreeBSD$ */ #ifndef _NET_IF_H_ #define _NET_IF_H_ #include #if __BSD_VISIBLE /* * does not depend on on most other systems. This * helps userland compatibility. (struct timeval ifi_lastchange) * The same holds for . (struct sockaddr ifru_addr) */ #ifndef _KERNEL #include #include #endif #endif /* * Length of interface external name, including terminating '\0'. * Note: this is the same size as a generic device's external name. */ #define IF_NAMESIZE 16 #if __BSD_VISIBLE #define IFNAMSIZ IF_NAMESIZE #define IF_MAXUNIT 0x7fff /* historical value */ #endif #if __BSD_VISIBLE /* * Structure used to query names of interface cloners. */ struct if_clonereq { int ifcr_total; /* total cloners (out) */ int ifcr_count; /* room for this many in user buffer */ char *ifcr_buffer; /* buffer for cloner names */ }; /* * Structure describing information about an interface * which may be of interest to management entities. */ struct if_data { /* generic interface information */ uint8_t ifi_type; /* ethernet, tokenring, etc */ uint8_t ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ uint8_t ifi_addrlen; /* media address length */ uint8_t ifi_hdrlen; /* media header length */ uint8_t ifi_link_state; /* current link state */ uint8_t ifi_vhid; /* carp vhid */ uint16_t ifi_datalen; /* length of this data struct */ uint32_t ifi_mtu; /* maximum transmission unit */ uint32_t ifi_metric; /* routing metric (external only) */ uint64_t ifi_baudrate; /* linespeed */ /* volatile statistics */ uint64_t ifi_ipackets; /* packets received on interface */ uint64_t ifi_ierrors; /* input errors on interface */ uint64_t ifi_opackets; /* packets sent on interface */ uint64_t ifi_oerrors; /* output errors on interface */ uint64_t ifi_collisions; /* collisions on csma interfaces */ uint64_t ifi_ibytes; /* total number of octets received */ uint64_t ifi_obytes; /* total number of octets sent */ uint64_t ifi_imcasts; /* packets received via multicast */ uint64_t ifi_omcasts; /* packets sent via multicast */ uint64_t ifi_iqdrops; /* dropped on input */ uint64_t ifi_oqdrops; /* dropped on output */ uint64_t ifi_noproto; /* destined for unsupported protocol */ uint64_t ifi_hwassist; /* HW offload capabilities, see IFCAP */ /* Unions are here to make sizes MI. */ union { /* uptime at attach or stat reset */ time_t tt; uint64_t ph; } __ifi_epoch; #define ifi_epoch __ifi_epoch.tt union { /* time of last administrative change */ struct timeval tv; struct { uint64_t ph1; uint64_t ph2; } ph; } __ifi_lastchange; #define ifi_lastchange __ifi_lastchange.tv }; /*- * Interface flags are of two types: network stack owned flags, and driver * owned flags. Historically, these values were stored in the same ifnet * flags field, but with the advent of fine-grained locking, they have been * broken out such that the network stack is responsible for synchronizing * the stack-owned fields, and the device driver the device-owned fields. * Both halves can perform lockless reads of the other half's field, subject * to accepting the involved races. * * Both sets of flags come from the same number space, and should not be * permitted to conflict, as they are exposed to user space via a single * field. * * The following symbols identify read and write requirements for fields: * * (i) if_flags field set by device driver before attach, read-only there * after. * (n) if_flags field written only by the network stack, read by either the * stack or driver. * (d) if_drv_flags field written only by the device driver, read by either * the stack or driver. */ #define IFF_UP 0x1 /* (n) interface is up */ #define IFF_BROADCAST 0x2 /* (i) broadcast address valid */ #define IFF_DEBUG 0x4 /* (n) turn on debugging */ #define IFF_LOOPBACK 0x8 /* (i) is a loopback net */ #define IFF_POINTOPOINT 0x10 /* (i) is a point-to-point link */ #define IFF_KNOWSEPOCH 0x20 /* (i) calls if_input in net epoch */ #define IFF_DRV_RUNNING 0x40 /* (d) resources allocated */ #define IFF_NOARP 0x80 /* (n) no address resolution protocol */ #define IFF_PROMISC 0x100 /* (n) receive all packets */ #define IFF_ALLMULTI 0x200 /* (n) receive all multicast packets */ #define IFF_DRV_OACTIVE 0x400 /* (d) tx hardware queue is full */ #define IFF_SIMPLEX 0x800 /* (i) can't hear own transmissions */ #define IFF_LINK0 0x1000 /* per link layer defined bit */ #define IFF_LINK1 0x2000 /* per link layer defined bit */ #define IFF_LINK2 0x4000 /* per link layer defined bit */ #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ #define IFF_MULTICAST 0x8000 /* (i) supports multicast */ #define IFF_CANTCONFIG 0x10000 /* (i) unconfigurable using ioctl(2) */ #define IFF_PPROMISC 0x20000 /* (n) user-requested promisc mode */ #define IFF_MONITOR 0x40000 /* (n) user-requested monitor mode */ #define IFF_STATICARP 0x80000 /* (n) static ARP */ #define IFF_STICKYARP 0x100000 /* (n) sticky ARP */ #define IFF_DYING 0x200000 /* (n) interface is winding down */ #define IFF_RENAMING 0x400000 /* (n) interface is being renamed */ #define IFF_NOGROUP 0x800000 /* (n) interface is not part of any groups */ #define IFF_NETLINK_1 0x1000000 /* (n) used by netlink */ /* * Old names for driver flags so that user space tools can continue to use * the old (portable) names. */ #ifndef _KERNEL #define IFF_RUNNING IFF_DRV_RUNNING #define IFF_OACTIVE IFF_DRV_OACTIVE #endif /* flags set internally only: */ #define IFF_CANTCHANGE \ (IFF_BROADCAST|IFF_POINTOPOINT|IFF_DRV_RUNNING|IFF_DRV_OACTIVE|\ IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_PROMISC|\ IFF_DYING|IFF_CANTCONFIG|IFF_KNOWSEPOCH) /* * Values for if_link_state. */ #define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */ #define LINK_STATE_DOWN 1 /* link is down */ #define LINK_STATE_UP 2 /* link is up */ /* * Some convenience macros used for setting ifi_baudrate. * XXX 1000 vs. 1024? --thorpej@netbsd.org */ #define IF_Kbps(x) ((uintmax_t)(x) * 1000) /* kilobits/sec. */ #define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */ #define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */ /* * Capabilities that interfaces can advertise. * * struct ifnet.if_capabilities * contains the optional features & capabilities a particular interface * supports (not only the driver but also the detected hw revision). * Capabilities are defined by IFCAP_* below. * struct ifnet.if_capenable * contains the enabled (either by default or through ifconfig) optional * features & capabilities on this interface. * Capabilities are defined by IFCAP_* below. * struct if_data.ifi_hwassist in mbuf CSUM_ flag form, controlled by above * contains the enabled optional feature & capabilites that can be used * individually per packet and are specified in the mbuf pkthdr.csum_flags * field. IFCAP_* and CSUM_* do not match one to one and CSUM_* may be * more detailed or differentiated than IFCAP_*. * Hwassist features are defined CSUM_* in sys/mbuf.h * * Capabilities that cannot be arbitrarily changed with ifconfig/ioctl * are listed in IFCAP_CANTCHANGE, similar to IFF_CANTCHANGE. * This is not strictly necessary because the common code never * changes capabilities, and it is left to the individual driver * to do the right thing. However, having the filter here * avoids replication of the same code in all individual drivers. */ #define IFCAP_RXCSUM 0x00001 /* can offload checksum on RX */ #define IFCAP_TXCSUM 0x00002 /* can offload checksum on TX */ #define IFCAP_NETCONS 0x00004 /* can be a network console */ #define IFCAP_VLAN_MTU 0x00008 /* VLAN-compatible MTU */ #define IFCAP_VLAN_HWTAGGING 0x00010 /* hardware VLAN tag support */ #define IFCAP_JUMBO_MTU 0x00020 /* 9000 byte MTU supported */ #define IFCAP_POLLING 0x00040 /* driver supports polling */ #define IFCAP_VLAN_HWCSUM 0x00080 /* can do IFCAP_HWCSUM on VLANs */ #define IFCAP_TSO4 0x00100 /* can do TCP Segmentation Offload */ #define IFCAP_TSO6 0x00200 /* can do TCP6 Segmentation Offload */ #define IFCAP_LRO 0x00400 /* can do Large Receive Offload */ #define IFCAP_WOL_UCAST 0x00800 /* wake on any unicast frame */ #define IFCAP_WOL_MCAST 0x01000 /* wake on any multicast frame */ #define IFCAP_WOL_MAGIC 0x02000 /* wake on any Magic Packet */ #define IFCAP_TOE4 0x04000 /* interface can offload TCP */ #define IFCAP_TOE6 0x08000 /* interface can offload TCP6 */ #define IFCAP_VLAN_HWFILTER 0x10000 /* interface hw can filter vlan tag */ #define IFCAP_NV 0x20000 /* can do SIOCGIFCAPNV/SIOCSIFCAPNV */ #define IFCAP_VLAN_HWTSO 0x40000 /* can do IFCAP_TSO on VLANs */ #define IFCAP_LINKSTATE 0x80000 /* the runtime link state is dynamic */ #define IFCAP_NETMAP 0x100000 /* netmap mode supported/enabled */ #define IFCAP_RXCSUM_IPV6 0x200000 /* can offload checksum on IPv6 RX */ #define IFCAP_TXCSUM_IPV6 0x400000 /* can offload checksum on IPv6 TX */ #define IFCAP_HWSTATS 0x800000 /* manages counters internally */ #define IFCAP_TXRTLMT 0x1000000 /* hardware supports TX rate limiting */ #define IFCAP_HWRXTSTMP 0x2000000 /* hardware rx timestamping */ #define IFCAP_MEXTPG 0x4000000 /* understands M_EXTPG mbufs */ #define IFCAP_TXTLS4 0x8000000 /* can do TLS encryption and segmentation for TCP */ #define IFCAP_TXTLS6 0x10000000 /* can do TLS encryption and segmentation for TCP6 */ #define IFCAP_VXLAN_HWCSUM 0x20000000 /* can do IFCAN_HWCSUM on VXLANs */ #define IFCAP_VXLAN_HWTSO 0x40000000 /* can do IFCAP_TSO on VXLANs */ #define IFCAP_TXTLS_RTLMT 0x80000000 /* can do TLS with rate limiting */ /* IFCAP2_* are integers, not bits. */ #define IFCAP2_RXTLS4 0 #define IFCAP2_RXTLS6 1 #define IFCAP2_BIT(x) (1UL << (x)) #define IFCAP_HWCSUM_IPV6 (IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6) #define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM) #define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6) #define IFCAP_WOL (IFCAP_WOL_UCAST | IFCAP_WOL_MCAST | IFCAP_WOL_MAGIC) #define IFCAP_TOE (IFCAP_TOE4 | IFCAP_TOE6) #define IFCAP_TXTLS (IFCAP_TXTLS4 | IFCAP_TXTLS6) #define IFCAP_CANTCHANGE (IFCAP_NETMAP | IFCAP_NV) #define IFCAP_ALLCAPS 0xffffffff #define IFCAP_RXCSUM_NAME "RXCSUM" #define IFCAP_TXCSUM_NAME "TXCSUM" #define IFCAP_NETCONS_NAME "NETCONS" #define IFCAP_VLAN_MTU_NAME "VLAN_MTU" #define IFCAP_VLAN_HWTAGGING_NAME "VLAN_HWTAGGING" #define IFCAP_JUMBO_MTU_NAME "JUMBO_MTU" #define IFCAP_POLLING_NAME "POLLING" #define IFCAP_VLAN_HWCSUM_NAME "VLAN_HWCSUM" #define IFCAP_TSO4_NAME "TSO4" #define IFCAP_TSO6_NAME "TSO6" #define IFCAP_LRO_NAME "LRO" #define IFCAP_WOL_UCAST_NAME "WOL_UCAST" #define IFCAP_WOL_MCAST_NAME "WOL_MCAST" #define IFCAP_WOL_MAGIC_NAME "WOL_MAGIC" #define IFCAP_TOE4_NAME "TOE4" #define IFCAP_TOE6_NAME "TOE6" #define IFCAP_VLAN_HWFILTER_NAME "VLAN_HWFILTER" #define IFCAP_VLAN_HWTSO_NAME "VLAN_HWTSO" #define IFCAP_LINKSTATE_NAME "LINKSTATE" #define IFCAP_NETMAP_NAME "NETMAP" #define IFCAP_RXCSUM_IPV6_NAME "RXCSUM_IPV6" #define IFCAP_TXCSUM_IPV6_NAME "TXCSUM_IPV6" #define IFCAP_HWSTATS_NAME "HWSTATS" #define IFCAP_TXRTLMT_NAME "TXRTLMT" #define IFCAP_HWRXTSTMP_NAME "HWRXTSTMP" #define IFCAP_MEXTPG_NAME "MEXTPG" #define IFCAP_TXTLS4_NAME "TXTLS4" #define IFCAP_TXTLS6_NAME "TXTLS6" #define IFCAP_VXLAN_HWCSUM_NAME "VXLAN_HWCSUM" #define IFCAP_VXLAN_HWTSO_NAME "VXLAN_HWTSO" #define IFCAP_TXTLS_RTLMT_NAME "TXTLS_RTLMT" #define IFCAP2_RXTLS4_NAME "RXTLS4" #define IFCAP2_RXTLS6_NAME "RXTLS6" #define IFQ_MAXLEN 50 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ /* * Message format for use in obtaining information about interfaces * from getkerninfo and the routing socket * For the new, extensible interface see struct if_msghdrl below. */ struct if_msghdr { u_short ifm_msglen; /* to skip over non-understood messages */ u_char ifm_version; /* future binary compatibility */ u_char ifm_type; /* message type */ int ifm_addrs; /* like rtm_addrs */ int ifm_flags; /* value of if_flags */ u_short ifm_index; /* index for associated ifp */ u_short _ifm_spare1; struct if_data ifm_data;/* statistics and other data about if */ }; /* * The 'l' version shall be used by new interfaces, like NET_RT_IFLISTL. It is * extensible after ifm_data_off or within ifm_data. Both the if_msghdr and * if_data now have a member field detailing the struct length in addition to * the routing message length. Macros are provided to find the start of * ifm_data and the start of the socket address strucutres immediately following * struct if_msghdrl given a pointer to struct if_msghdrl. */ #define IF_MSGHDRL_IFM_DATA(_l) \ (struct if_data *)((char *)(_l) + (_l)->ifm_data_off) #define IF_MSGHDRL_RTA(_l) \ (void *)((uintptr_t)(_l) + (_l)->ifm_len) struct if_msghdrl { u_short ifm_msglen; /* to skip over non-understood messages */ u_char ifm_version; /* future binary compatibility */ u_char ifm_type; /* message type */ int ifm_addrs; /* like rtm_addrs */ int ifm_flags; /* value of if_flags */ u_short ifm_index; /* index for associated ifp */ u_short _ifm_spare1; /* spare space to grow if_index, see if_var.h */ u_short ifm_len; /* length of if_msghdrl incl. if_data */ u_short ifm_data_off; /* offset of if_data from beginning */ int _ifm_spare2; struct if_data ifm_data;/* statistics and other data about if */ }; /* * Message format for use in obtaining information about interface addresses * from getkerninfo and the routing socket * For the new, extensible interface see struct ifa_msghdrl below. */ struct ifa_msghdr { u_short ifam_msglen; /* to skip over non-understood messages */ u_char ifam_version; /* future binary compatibility */ u_char ifam_type; /* message type */ int ifam_addrs; /* like rtm_addrs */ int ifam_flags; /* value of ifa_flags */ u_short ifam_index; /* index for associated ifp */ u_short _ifam_spare1; int ifam_metric; /* value of ifa_ifp->if_metric */ }; /* * The 'l' version shall be used by new interfaces, like NET_RT_IFLISTL. It is * extensible after ifam_metric or within ifam_data. Both the ifa_msghdrl and * if_data now have a member field detailing the struct length in addition to * the routing message length. Macros are provided to find the start of * ifm_data and the start of the socket address strucutres immediately following * struct ifa_msghdrl given a pointer to struct ifa_msghdrl. */ #define IFA_MSGHDRL_IFAM_DATA(_l) \ (struct if_data *)((char *)(_l) + (_l)->ifam_data_off) #define IFA_MSGHDRL_RTA(_l) \ (void *)((uintptr_t)(_l) + (_l)->ifam_len) struct ifa_msghdrl { u_short ifam_msglen; /* to skip over non-understood messages */ u_char ifam_version; /* future binary compatibility */ u_char ifam_type; /* message type */ int ifam_addrs; /* like rtm_addrs */ int ifam_flags; /* value of ifa_flags */ u_short ifam_index; /* index for associated ifp */ u_short _ifam_spare1; /* spare space to grow if_index, see if_var.h */ u_short ifam_len; /* length of ifa_msghdrl incl. if_data */ u_short ifam_data_off; /* offset of if_data from beginning */ int ifam_metric; /* value of ifa_ifp->if_metric */ struct if_data ifam_data;/* statistics and other data about if or * address */ }; /* * Message format for use in obtaining information about multicast addresses * from the routing socket */ struct ifma_msghdr { u_short ifmam_msglen; /* to skip over non-understood messages */ u_char ifmam_version; /* future binary compatibility */ u_char ifmam_type; /* message type */ int ifmam_addrs; /* like rtm_addrs */ int ifmam_flags; /* value of ifa_flags */ u_short ifmam_index; /* index for associated ifp */ u_short _ifmam_spare1; }; /* * Message format announcing the arrival or departure of a network interface. */ struct if_announcemsghdr { u_short ifan_msglen; /* to skip over non-understood messages */ u_char ifan_version; /* future binary compatibility */ u_char ifan_type; /* message type */ u_short ifan_index; /* index for associated ifp */ char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */ u_short ifan_what; /* what type of announcement */ }; #define IFAN_ARRIVAL 0 /* interface arrival */ #define IFAN_DEPARTURE 1 /* interface departure */ /* * Buffer with length to be used in SIOCGIFDESCR/SIOCSIFDESCR requests */ struct ifreq_buffer { size_t length; void *buffer; }; struct ifreq_nv_req { u_int buf_length; /* Total size of buffer, u_int for ABI struct ifreq */ u_int length; /* Length of the filled part */ void *buffer; /* Buffer itself, containing packed nv */ }; #define IFR_CAP_NV_MAXBUFSIZE (2 * 1024 * 1024) /* * Interface request structure used for socket * ioctl's. All interface ioctl's must have parameter * definitions which begin with ifr_name. The * remainder may be interface specific. */ struct ifreq { char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ union { struct sockaddr ifru_addr; struct sockaddr ifru_dstaddr; struct sockaddr ifru_broadaddr; struct ifreq_buffer ifru_buffer; short ifru_flags[2]; short ifru_index; int ifru_jid; int ifru_metric; int ifru_mtu; int ifru_phys; int ifru_media; caddr_t ifru_data; int ifru_cap[2]; u_int ifru_fib; u_char ifru_vlan_pcp; struct ifreq_nv_req ifru_nv; } ifr_ifru; #define ifr_addr ifr_ifru.ifru_addr /* address */ #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ #ifndef _KERNEL #define ifr_buffer ifr_ifru.ifru_buffer /* user supplied buffer with its length */ #endif #define ifr_flags ifr_ifru.ifru_flags[0] /* flags (low 16 bits) */ #define ifr_flagshigh ifr_ifru.ifru_flags[1] /* flags (high 16 bits) */ #define ifr_jid ifr_ifru.ifru_jid /* jail/vnet */ #define ifr_metric ifr_ifru.ifru_metric /* metric */ #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ #define ifr_phys ifr_ifru.ifru_phys /* physical wire */ #define ifr_media ifr_ifru.ifru_media /* physical media */ #ifndef _KERNEL #define ifr_data ifr_ifru.ifru_data /* for use by interface */ #endif #define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */ #define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */ #define ifr_index ifr_ifru.ifru_index /* interface index */ #define ifr_fib ifr_ifru.ifru_fib /* interface fib */ #define ifr_vlan_pcp ifr_ifru.ifru_vlan_pcp /* VLAN priority */ #define ifr_lan_pcp ifr_ifru.ifru_vlan_pcp /* VLAN priority */ #define ifr_cap_nv ifr_ifru.ifru_nv /* nv-based cap interface */ }; #define _SIZEOF_ADDR_IFREQ(ifr) \ ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \ (sizeof(struct ifreq) - sizeof(struct sockaddr) + \ (ifr).ifr_addr.sa_len) : sizeof(struct ifreq)) struct ifaliasreq { char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ struct sockaddr ifra_addr; struct sockaddr ifra_broadaddr; struct sockaddr ifra_mask; int ifra_vhid; }; /* 9.x compat */ struct oifaliasreq { char ifra_name[IFNAMSIZ]; struct sockaddr ifra_addr; struct sockaddr ifra_broadaddr; struct sockaddr ifra_mask; }; struct ifmediareq { char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ int ifm_current; /* current media options */ int ifm_mask; /* don't care mask */ int ifm_status; /* media status */ int ifm_active; /* active options */ int ifm_count; /* # entries in ifm_ulist array */ int *ifm_ulist; /* media words */ }; struct ifdrv { char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */ unsigned long ifd_cmd; size_t ifd_len; void *ifd_data; }; /* * Structure used to retrieve aux status data from interfaces. * Kernel suppliers to this interface should respect the formatting * needed by ifconfig(8): each line starts with a TAB and ends with * a newline. The canonical example to copy and paste is in if_tun.c. */ #define IFSTATMAX 800 /* 10 lines of text */ struct ifstat { char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */ char ascii[IFSTATMAX + 1]; }; /* * Structure used in SIOCGIFCONF request. * Used to retrieve interface configuration * for machine (useful for programs which * must know all networks accessible). */ struct ifconf { int ifc_len; /* size of associated buffer */ union { caddr_t ifcu_buf; struct ifreq *ifcu_req; } ifc_ifcu; #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ }; /* * interface groups */ #define IFG_ALL "all" /* group contains all interfaces */ /* XXX: will we implement this? */ #define IFG_EGRESS "egress" /* if(s) default route(s) point to */ struct ifg_req { union { char ifgrqu_group[IFNAMSIZ]; char ifgrqu_member[IFNAMSIZ]; } ifgrq_ifgrqu; #define ifgrq_group ifgrq_ifgrqu.ifgrqu_group #define ifgrq_member ifgrq_ifgrqu.ifgrqu_member }; /* * Used to lookup groups for an interface */ struct ifgroupreq { char ifgr_name[IFNAMSIZ]; u_int ifgr_len; union { char ifgru_group[IFNAMSIZ]; struct ifg_req *ifgru_groups; } ifgr_ifgru; #define ifgr_group ifgr_ifgru.ifgru_group #define ifgr_groups ifgr_ifgru.ifgru_groups }; /* * Structure used to request i2c data * from interface transceivers. */ struct ifi2creq { uint8_t dev_addr; /* i2c address (0xA0, 0xA2) */ uint8_t offset; /* read offset */ uint8_t len; /* read length */ uint8_t spare0; uint32_t spare1; uint8_t data[8]; /* read buffer */ }; /* * RSS hash. */ #define RSS_FUNC_NONE 0 /* RSS disabled */ #define RSS_FUNC_PRIVATE 1 /* non-standard */ #define RSS_FUNC_TOEPLITZ 2 #define RSS_TYPE_IPV4 0x00000001 #define RSS_TYPE_TCP_IPV4 0x00000002 #define RSS_TYPE_IPV6 0x00000004 #define RSS_TYPE_IPV6_EX 0x00000008 #define RSS_TYPE_TCP_IPV6 0x00000010 #define RSS_TYPE_TCP_IPV6_EX 0x00000020 #define RSS_TYPE_UDP_IPV4 0x00000040 #define RSS_TYPE_UDP_IPV6 0x00000080 #define RSS_TYPE_UDP_IPV6_EX 0x00000100 #define RSS_KEYLEN 128 struct ifrsskey { char ifrk_name[IFNAMSIZ]; /* if name, e.g. "en0" */ uint8_t ifrk_func; /* RSS_FUNC_ */ uint8_t ifrk_spare0; uint16_t ifrk_keylen; uint8_t ifrk_key[RSS_KEYLEN]; }; struct ifrsshash { char ifrh_name[IFNAMSIZ]; /* if name, e.g. "en0" */ uint8_t ifrh_func; /* RSS_FUNC_ */ uint8_t ifrh_spare0; uint16_t ifrh_spare1; uint32_t ifrh_types; /* RSS_TYPE_ */ }; #define IFNET_PCP_NONE 0xff /* PCP disabled */ #define IFDR_MSG_SIZE 64 #define IFDR_REASON_MSG 1 #define IFDR_REASON_VENDOR 2 struct ifdownreason { char ifdr_name[IFNAMSIZ]; uint32_t ifdr_reason; uint32_t ifdr_vendor; char ifdr_msg[IFDR_MSG_SIZE]; }; #endif /* __BSD_VISIBLE */ /* * Opaque interface structure. */ typedef struct ifnet * if_t; -union if_snd_tag_alloc_params; -union if_snd_tag_query_params; -union if_snd_tag_modify_params; - -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; - - -struct mbuf; -struct route; -struct m_snd_tag; - -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)(if_t, struct mbuf *); -typedef int (*if_output_fn_t) - (if_t, 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 int (if_snd_tag_alloc_t)(if_t, 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 *); - #ifdef _KERNEL - #ifdef MALLOC_DECLARE MALLOC_DECLARE(M_IFADDR); MALLOC_DECLARE(M_IFMADDR); #endif -struct ifnet* if_alloc(u_char); -struct ifnet* if_alloc_dev(u_char, device_t dev); -void if_attach(if_t); -void if_free(if_t); -void if_initname(if_t, const char *, int); -void if_down(if_t); -void if_link_state_change(if_t, int); -int if_printf(if_t, const char *, ...) __printflike(2, 3); - -uint64_t if_get_counter_default(if_t, ift_counter); -void if_inc_counter(if_t, ift_counter, int64_t); - -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_getdunit(const if_t ifp); -int if_getindex(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_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_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); -int if_gethwaddr(const if_t ifp, struct ifreq *); -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); -int if_setflagbits(if_t ifp, int set, int clear); -int if_getflags(const 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); -int 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); -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); -int if_init(if_t ifp); - -/* - * 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); - -/* Functions */ -void if_setinitfn(if_t ifp, if_init_fn_t); -void if_setinputfn(if_t ifp, if_input_fn_t); -void if_setioctlfn(if_t ifp, if_ioctl_fn_t); -void if_setoutputfn(if_t ifp, int(*) - (if_t, struct mbuf *, const struct sockaddr *, struct route *)); -void if_setstartfn(if_t ifp, void (*)(if_t)); -void if_settransmitfn(if_t ifp, if_transmit_fn_t); -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); - -/* 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); - -#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 */ - extern struct sx ifnet_detach_sxlock; struct nvlist; struct ifcap_nv_bit_name; int if_capnv_to_capint(const struct nvlist *nv, int *old_cap, const struct ifcap_nv_bit_name *nn, bool all); void if_capint_to_capnv(struct nvlist *nv, const struct ifcap_nv_bit_name *nn, int ifr_cap, int ifr_req); struct siocsifcapnv_driver_data { int reqcap; int reqcap2; struct nvlist *nvcap; }; #endif #ifndef _KERNEL struct if_nameindex { unsigned int if_index; /* 1, 2, ... */ char *if_name; /* null terminated name: "le0", ... */ }; __BEGIN_DECLS void if_freenameindex(struct if_nameindex *); char *if_indextoname(unsigned int, char *); struct if_nameindex *if_nameindex(void); unsigned int if_nametoindex(const char *); __END_DECLS #endif #endif /* !_NET_IF_H_ */ diff --git a/sys/net/if_var.h b/sys/net/if_var.h index 1aaabc8e3124..2712ac74a09d 100644 --- a/sys/net/if_var.h +++ b/sys/net/if_var.h @@ -1,694 +1,839 @@ /*- * 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 #include /* ifqueue only? */ #include #include #endif /* _KERNEL */ #include #include #include #include /* XXX */ #include /* struct ifqueue */ #include /* XXX */ #include /* XXX */ #include /* if_link_task */ #define IF_DUNIT_NONE -1 #include 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); + 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); /* * Structure defining a network interface. */ struct ifnet { /* General book keeping of interface lists. */ CK_STAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained (CK_) */ LIST_ENTRY(ifnet) if_clones; /* interfaces of a cloner */ CK_STAILQ_HEAD(, ifg_list) if_groups; /* linked list of groups per if (CK_) */ /* protected by if_addr_lock */ u_char if_alloctype; /* if_type at time of allocation */ uint8_t if_numa_domain; /* NUMA domain of device */ /* Driver and protocol specific information that remains stable. */ void *if_softc; /* pointer to driver state */ void *if_llsoftc; /* link layer softc */ void *if_l2com; /* pointer to protocol bits */ const char *if_dname; /* driver name */ int if_dunit; /* unit or IF_DUNIT_NONE */ u_short if_index; /* numeric abbreviation for this if */ u_short if_idxgen; /* ... and its generation count */ char if_xname[IFNAMSIZ]; /* external name (name + unit) */ char *if_description; /* interface description */ /* Variable fields that are touched by the stack and drivers. */ int if_flags; /* up/down, broadcast, etc. */ int if_drv_flags; /* driver-managed status flags */ int if_capabilities; /* interface features & capabilities */ int if_capabilities2; /* part 2 */ int if_capenable; /* enabled features & capabilities */ int if_capenable2; /* part 2 */ void *if_linkmib; /* link-type-specific MIB data */ size_t if_linkmiblen; /* length of above data */ u_int if_refcount; /* reference count */ /* These fields are shared with struct if_data. */ uint8_t if_type; /* ethernet, tokenring, etc */ uint8_t if_addrlen; /* media address length */ uint8_t if_hdrlen; /* media header length */ uint8_t if_link_state; /* current link state */ uint32_t if_mtu; /* maximum transmission unit */ uint32_t if_metric; /* routing metric (external only) */ uint64_t if_baudrate; /* linespeed */ uint64_t if_hwassist; /* HW offload capabilities, see IFCAP */ time_t if_epoch; /* uptime at attach or stat reset */ struct timeval if_lastchange; /* time of last administrative change */ struct ifaltq if_snd; /* output queue (includes altq) */ struct task if_linktask; /* task for link change events */ struct task if_addmultitask; /* task for SIOCADDMULTI */ /* Addresses of different protocol families assigned to this if. */ struct mtx if_addr_lock; /* lock to protect address lists */ /* * if_addrhead is the list of all addresses associated to * an interface. * Some code in the kernel assumes that first element * of the list has type AF_LINK, and contains sockaddr_dl * addresses which store the link-level address and the name * of the interface. * However, access to the AF_LINK address through this * field is deprecated. Use if_addr instead. */ struct ifaddrhead if_addrhead; /* linked list of addresses per if */ struct ifmultihead if_multiaddrs; /* multicast addresses configured */ int if_amcount; /* number of all-multicast requests */ struct ifaddr *if_addr; /* pointer to link-level address */ void *if_hw_addr; /* hardware link-level address */ const u_int8_t *if_broadcastaddr; /* linklevel broadcast bytestring */ struct mtx if_afdata_lock; void *if_afdata[AF_MAX]; int if_afdata_initialized; /* Additional features hung off the interface. */ u_int if_fib; /* interface FIB */ struct vnet *if_vnet; /* pointer to network stack instance */ struct vnet *if_home_vnet; /* where this ifnet originates from */ struct ifvlantrunk *if_vlantrunk; /* pointer to 802.1q data */ struct bpf_if *if_bpf; /* packet filter structure */ int if_pcount; /* number of promiscuous listeners */ void *if_bridge; /* bridge glue */ void *if_lagg; /* lagg glue */ void *if_pf_kif; /* pf glue */ struct carp_if *if_carp; /* carp interface structure */ struct label *if_label; /* interface MAC label */ struct netmap_adapter *if_netmap; /* netmap(4) softc */ /* Various procedures of the layer2 encapsulation and drivers. */ if_output_fn_t if_output; /* output routine (enqueue) */ if_input_fn_t if_input; /* input routine (from h/w driver) */ struct mbuf *(*if_bridge_input)(struct ifnet *, struct mbuf *); int (*if_bridge_output)(struct ifnet *, struct mbuf *, struct sockaddr *, struct rtentry *); void (*if_bridge_linkstate)(struct ifnet *ifp); if_start_fn_t if_start; /* initiate output routine */ if_ioctl_fn_t if_ioctl; /* ioctl routine */ if_init_fn_t if_init; /* Init routine */ int (*if_resolvemulti) /* validate/resolve multicast */ (struct ifnet *, struct sockaddr **, struct sockaddr *); if_qflush_fn_t if_qflush; /* flush any queue */ if_transmit_fn_t if_transmit; /* initiate output routine */ void (*if_reassign) /* reassign to vnet routine */ (struct ifnet *, struct vnet *, char *); if_get_counter_t if_get_counter; /* get counter values */ int (*if_requestencap) /* make link header from request */ (struct ifnet *, struct if_encap_req *); /* Statistics. */ counter_u64_t if_counters[IFCOUNTERS]; /* Stuff that's only temporary and doesn't belong here. */ /* * Network adapter TSO limits: * =========================== * * If the "if_hw_tsomax" field is zero the maximum segment * length limit does not apply. If the "if_hw_tsomaxsegcount" * or the "if_hw_tsomaxsegsize" field is zero the TSO segment * count limit does not apply. If all three fields are zero, * there is no TSO limit. * * NOTE: The TSO limits should reflect the values used in the * BUSDMA tag a network adapter is using to load a mbuf chain * for transmission. The TCP/IP network stack will subtract * space for all linklevel and protocol level headers and * ensure that the full mbuf chain passed to the network * adapter fits within the given limits. */ u_int if_hw_tsomax; /* TSO maximum size in bytes */ u_int if_hw_tsomaxsegcount; /* TSO maximum segment count */ u_int if_hw_tsomaxsegsize; /* TSO maximum segment size in bytes */ /* * Network adapter send tag support: */ if_snd_tag_alloc_t *if_snd_tag_alloc; /* Ratelimit (packet pacing) */ if_ratelimit_query_t *if_ratelimit_query; if_ratelimit_setup_t *if_ratelimit_setup; /* Ethernet PCP */ uint8_t if_pcp; /* * Debugnet (Netdump) hooks to be called while in db/panic. */ struct debugnet_methods *if_debugnet_methods; struct epoch_context if_epoch_ctx; /* * Spare fields to be added before branching a stable branch, so * that structure can be enhanced without changing the kernel * binary interface. */ int if_ispare[4]; /* general use */ }; #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) ((ifp)->if_llsoftc) /* * 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_getdunit(const if_t ifp); +int if_getindex(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_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_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); +int if_gethwaddr(const if_t ifp, struct ifreq *); +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); +int if_setflagbits(if_t ifp, int set, int clear); +int if_getflags(const 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); +int 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); +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); +int if_init(if_t ifp); + +/* + * 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); + +/* Functions */ +void if_setinitfn(if_t ifp, if_init_fn_t); +void if_setinputfn(if_t ifp, if_input_fn_t); +void if_setioctlfn(if_t ifp, if_ioctl_fn_t); +void if_setoutputfn(if_t ifp, int(*) + (if_t, struct mbuf *, const struct sockaddr *, struct route *)); +void if_setstartfn(if_t ifp, void (*)(if_t)); +void if_settransmitfn(if_t ifp, if_transmit_fn_t); +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); + /* 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 /* XXXAO: temporary unconditional include */ #endif /* !_NET_IF_VAR_H_ */