if.h (25733B) - Raw
1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)if.h 8.1 (Berkeley) 6/10/93 32 */ 33 34 #ifndef _NET_IF_H_ 35 #define _NET_IF_H_ 36 37 #include <sys/cdefs.h> 38 39 #if __BSD_VISIBLE 40 /* 41 * <net/if.h> does not depend on <sys/time.h> on most other systems. This 42 * helps userland compatibility. (struct timeval ifi_lastchange) 43 * The same holds for <sys/socket.h>. (struct sockaddr ifru_addr) 44 */ 45 #ifndef _KERNEL 46 #include <sys/time.h> 47 #include <sys/socket.h> 48 #endif 49 #endif 50 51 /* 52 * Length of interface external name, including terminating '\0'. 53 * Note: this is the same size as a generic device's external name. 54 */ 55 #define IF_NAMESIZE 16 56 #if __BSD_VISIBLE 57 #define IFNAMSIZ IF_NAMESIZE 58 #define IF_MAXUNIT 0x7fff /* historical value */ 59 #endif 60 #if __BSD_VISIBLE 61 62 /* 63 * Structure used to query names of interface cloners. 64 */ 65 66 struct if_clonereq { 67 int ifcr_total; /* total cloners (out) */ 68 int ifcr_count; /* room for this many in user buffer */ 69 char *ifcr_buffer; /* buffer for cloner names */ 70 }; 71 72 /* 73 * Structure describing information about an interface 74 * which may be of interest to management entities. 75 */ 76 struct if_data { 77 /* generic interface information */ 78 uint8_t ifi_type; /* ethernet, tokenring, etc */ 79 uint8_t ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ 80 uint8_t ifi_addrlen; /* media address length */ 81 uint8_t ifi_hdrlen; /* media header length */ 82 uint8_t ifi_link_state; /* current link state */ 83 uint8_t ifi_vhid; /* carp vhid */ 84 uint16_t ifi_datalen; /* length of this data struct */ 85 uint32_t ifi_mtu; /* maximum transmission unit */ 86 uint32_t ifi_metric; /* routing metric (external only) */ 87 uint64_t ifi_baudrate; /* linespeed */ 88 /* volatile statistics */ 89 uint64_t ifi_ipackets; /* packets received on interface */ 90 uint64_t ifi_ierrors; /* input errors on interface */ 91 uint64_t ifi_opackets; /* packets sent on interface */ 92 uint64_t ifi_oerrors; /* output errors on interface */ 93 uint64_t ifi_collisions; /* collisions on csma interfaces */ 94 uint64_t ifi_ibytes; /* total number of octets received */ 95 uint64_t ifi_obytes; /* total number of octets sent */ 96 uint64_t ifi_imcasts; /* packets received via multicast */ 97 uint64_t ifi_omcasts; /* packets sent via multicast */ 98 uint64_t ifi_iqdrops; /* dropped on input */ 99 uint64_t ifi_oqdrops; /* dropped on output */ 100 uint64_t ifi_noproto; /* destined for unsupported protocol */ 101 uint64_t ifi_hwassist; /* HW offload capabilities, see IFCAP */ 102 103 /* Unions are here to make sizes MI. */ 104 union { /* uptime at attach or stat reset */ 105 time_t tt; 106 uint64_t ph; 107 } __ifi_epoch; 108 #define ifi_epoch __ifi_epoch.tt 109 union { /* time of last administrative change */ 110 struct timeval tv; 111 struct { 112 uint64_t ph1; 113 uint64_t ph2; 114 } ph; 115 } __ifi_lastchange; 116 #define ifi_lastchange __ifi_lastchange.tv 117 }; 118 119 /*- 120 * Interface flags are of two types: network stack owned flags, and driver 121 * owned flags. Historically, these values were stored in the same ifnet 122 * flags field, but with the advent of fine-grained locking, they have been 123 * broken out such that the network stack is responsible for synchronizing 124 * the stack-owned fields, and the device driver the device-owned fields. 125 * Both halves can perform lockless reads of the other half's field, subject 126 * to accepting the involved races. 127 * 128 * Both sets of flags come from the same number space, and should not be 129 * permitted to conflict, as they are exposed to user space via a single 130 * field. 131 * 132 * The following symbols identify read and write requirements for fields: 133 * 134 * (i) if_flags field set by device driver before attach, read-only there 135 * after. 136 * (n) if_flags field written only by the network stack, read by either the 137 * stack or driver. 138 * (d) if_drv_flags field written only by the device driver, read by either 139 * the stack or driver. 140 */ 141 #define IFF_UP 0x1 /* (n) interface is up */ 142 #define IFF_BROADCAST 0x2 /* (i) broadcast address valid */ 143 #define IFF_DEBUG 0x4 /* (n) turn on debugging */ 144 #define IFF_LOOPBACK 0x8 /* (i) is a loopback net */ 145 #define IFF_POINTOPOINT 0x10 /* (i) is a point-to-point link */ 146 #define IFF_NEEDSEPOCH 0x20 /* (i) calls if_input w/o net epoch */ 147 #define IFF_DRV_RUNNING 0x40 /* (d) resources allocated */ 148 #define IFF_NOARP 0x80 /* (n) no address resolution protocol */ 149 #define IFF_PROMISC 0x100 /* (n) receive all packets */ 150 #define IFF_ALLMULTI 0x200 /* (n) receive all multicast packets */ 151 #define IFF_DRV_OACTIVE 0x400 /* (d) tx hardware queue is full */ 152 #define IFF_SIMPLEX 0x800 /* (i) can't hear own transmissions */ 153 #define IFF_LINK0 0x1000 /* per link layer defined bit */ 154 #define IFF_LINK1 0x2000 /* per link layer defined bit */ 155 #define IFF_LINK2 0x4000 /* per link layer defined bit */ 156 #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 157 #define IFF_MULTICAST 0x8000 /* (i) supports multicast */ 158 #define IFF_CANTCONFIG 0x10000 /* (i) unconfigurable using ioctl(2) */ 159 #define IFF_PPROMISC 0x20000 /* (n) user-requested promisc mode */ 160 #define IFF_MONITOR 0x40000 /* (n) user-requested monitor mode */ 161 #define IFF_STATICARP 0x80000 /* (n) static ARP */ 162 #define IFF_STICKYARP 0x100000 /* (n) sticky ARP */ 163 #define IFF_DYING 0x200000 /* (n) interface is winding down */ 164 #define IFF_RENAMING 0x400000 /* (n) interface is being renamed */ 165 #define IFF_PALLMULTI 0x800000 /* (n) user-requested allmulti mode */ 166 #define IFF_NETLINK_1 0x1000000 /* (n) used by netlink */ 167 168 /* 169 * Old names for driver flags so that user space tools can continue to use 170 * the old (portable) names. 171 */ 172 #ifndef _KERNEL 173 #define IFF_RUNNING IFF_DRV_RUNNING 174 #define IFF_OACTIVE IFF_DRV_OACTIVE 175 #endif 176 177 /* flags set internally only: */ 178 #define IFF_CANTCHANGE \ 179 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_DRV_RUNNING|IFF_DRV_OACTIVE|\ 180 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_PROMISC|\ 181 IFF_DYING|IFF_CANTCONFIG|IFF_NEEDSEPOCH) 182 183 /* 184 * Values for if_link_state. 185 */ 186 #define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */ 187 #define LINK_STATE_DOWN 1 /* link is down */ 188 #define LINK_STATE_UP 2 /* link is up */ 189 190 /* 191 * Some convenience macros used for setting ifi_baudrate. 192 * XXX 1000 vs. 1024? --thorpej@netbsd.org 193 */ 194 #define IF_Kbps(x) ((uintmax_t)(x) * 1000) /* kilobits/sec. */ 195 #define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */ 196 #define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */ 197 198 /* 199 * Capabilities that interfaces can advertise. 200 * 201 * struct ifnet.if_capabilities 202 * contains the optional features & capabilities a particular interface 203 * supports (not only the driver but also the detected hw revision). 204 * Capabilities are defined by IFCAP_* below. 205 * struct ifnet.if_capenable 206 * contains the enabled (either by default or through ifconfig) optional 207 * features & capabilities on this interface. 208 * Capabilities are defined by IFCAP_* below. 209 * struct if_data.ifi_hwassist in mbuf CSUM_ flag form, controlled by above 210 * contains the enabled optional feature & capabilites that can be used 211 * individually per packet and are specified in the mbuf pkthdr.csum_flags 212 * field. IFCAP_* and CSUM_* do not match one to one and CSUM_* may be 213 * more detailed or differentiated than IFCAP_*. 214 * Hwassist features are defined CSUM_* in sys/mbuf.h 215 * 216 * Capabilities that cannot be arbitrarily changed with ifconfig/ioctl 217 * are listed in IFCAP_CANTCHANGE, similar to IFF_CANTCHANGE. 218 * This is not strictly necessary because the common code never 219 * changes capabilities, and it is left to the individual driver 220 * to do the right thing. However, having the filter here 221 * avoids replication of the same code in all individual drivers. 222 */ 223 224 /* IFCAP values as bit indexes */ 225 226 #define IFCAP_B_RXCSUM 0 /* can offload checksum on RX */ 227 #define IFCAP_B_TXCSUM 1 /* can offload checksum on TX */ 228 #define IFCAP_B_NETCONS 2 /* can be a network console */ 229 #define IFCAP_B_VLAN_MTU 3 /* VLAN-compatible MTU */ 230 #define IFCAP_B_VLAN_HWTAGGING 4 /* hardware VLAN tag support */ 231 #define IFCAP_B_JUMBO_MTU 5 /* 9000 byte MTU supported */ 232 #define IFCAP_B_POLLING 6 /* driver supports polling */ 233 #define IFCAP_B_VLAN_HWCSUM 7 /* can do IFCAP_HWCSUM on VLANs */ 234 #define IFCAP_B_TSO4 8 /* can do TCP Segmentation Offload */ 235 #define IFCAP_B_TSO6 9 /* can do TCP6 Segmentation Offload */ 236 #define IFCAP_B_LRO 10 /* can do Large Receive Offload */ 237 #define IFCAP_B_WOL_UCAST 11 /* wake on any unicast frame */ 238 #define IFCAP_B_WOL_MCAST 12 /* wake on any multicast frame */ 239 #define IFCAP_B_WOL_MAGIC 13 /* wake on any Magic Packet */ 240 #define IFCAP_B_TOE4 14 /* interface can offload TCP */ 241 #define IFCAP_B_TOE6 15 /* interface can offload TCP6 */ 242 #define IFCAP_B_VLAN_HWFILTER 16 /* interface hw can filter vlan tag */ 243 #define IFCAP_B_NV 17 /* can do SIOCGIFCAPNV/SIOCSIFCAPNV */ 244 #define IFCAP_B_VLAN_HWTSO 18 /* can do IFCAP_TSO on VLANs */ 245 #define IFCAP_B_LINKSTATE 19 /* the runtime link state is dynamic */ 246 #define IFCAP_B_NETMAP 20 /* netmap mode supported/enabled */ 247 #define IFCAP_B_RXCSUM_IPV6 21 /* can offload checksum on IPv6 RX */ 248 #define IFCAP_B_TXCSUM_IPV6 22 /* can offload checksum on IPv6 TX */ 249 #define IFCAP_B_HWSTATS 23 /* manages counters internally */ 250 #define IFCAP_B_TXRTLMT 24 /* hardware supports TX rate limiting */ 251 #define IFCAP_B_HWRXTSTMP 25 /* hardware rx timestamping */ 252 #define IFCAP_B_MEXTPG 26 /* understands M_EXTPG mbufs */ 253 #define IFCAP_B_TXTLS4 27 /* can do TLS encryption and segmentation for TCP */ 254 #define IFCAP_B_TXTLS6 28 /* can do TLS encryption and segmentation for TCP6 */ 255 #define IFCAP_B_VXLAN_HWCSUM 29 /* can do IFCAN_HWCSUM on VXLANs */ 256 #define IFCAP_B_VXLAN_HWTSO 30 /* can do IFCAP_TSO on VXLANs */ 257 #define IFCAP_B_TXTLS_RTLMT 31 /* can do TLS with rate limiting */ 258 #define IFCAP_B_RXTLS4 32 /* can to TLS receive for TCP */ 259 #define IFCAP_B_RXTLS6 33 /* can to TLS receive for TCP6 */ 260 #define __IFCAP_B_SIZE 34 261 262 #define IFCAP_B_MAX (__IFCAP_B_MAX - 1) 263 #define IFCAP_B_SIZE (__IFCAP_B_SIZE) 264 265 #define IFCAP_BIT(x) (1 << (x)) 266 267 #define IFCAP_RXCSUM IFCAP_BIT(IFCAP_B_RXCSUM) 268 #define IFCAP_TXCSUM IFCAP_BIT(IFCAP_B_TXCSUM) 269 #define IFCAP_NETCONS IFCAP_BIT(IFCAP_B_NETCONS) 270 #define IFCAP_VLAN_MTU IFCAP_BIT(IFCAP_B_VLAN_MTU) 271 #define IFCAP_VLAN_HWTAGGING IFCAP_BIT(IFCAP_B_VLAN_HWTAGGING) 272 #define IFCAP_JUMBO_MTU IFCAP_BIT(IFCAP_B_JUMBO_MTU) 273 #define IFCAP_POLLING IFCAP_BIT(IFCAP_B_POLLING) 274 #define IFCAP_VLAN_HWCSUM IFCAP_BIT(IFCAP_B_VLAN_HWCSUM) 275 #define IFCAP_TSO4 IFCAP_BIT(IFCAP_B_TSO4) 276 #define IFCAP_TSO6 IFCAP_BIT(IFCAP_B_TSO6) 277 #define IFCAP_LRO IFCAP_BIT(IFCAP_B_LRO) 278 #define IFCAP_WOL_UCAST IFCAP_BIT(IFCAP_B_WOL_UCAST) 279 #define IFCAP_WOL_MCAST IFCAP_BIT(IFCAP_B_WOL_MCAST) 280 #define IFCAP_WOL_MAGIC IFCAP_BIT(IFCAP_B_WOL_MAGIC) 281 #define IFCAP_TOE4 IFCAP_BIT(IFCAP_B_TOE4) 282 #define IFCAP_TOE6 IFCAP_BIT(IFCAP_B_TOE6) 283 #define IFCAP_VLAN_HWFILTER IFCAP_BIT(IFCAP_B_VLAN_HWFILTER) 284 #define IFCAP_NV IFCAP_BIT(IFCAP_B_NV) 285 #define IFCAP_VLAN_HWTSO IFCAP_BIT(IFCAP_B_VLAN_HWTSO) 286 #define IFCAP_LINKSTATE IFCAP_BIT(IFCAP_B_LINKSTATE) 287 #define IFCAP_NETMAP IFCAP_BIT(IFCAP_B_NETMAP) 288 #define IFCAP_RXCSUM_IPV6 IFCAP_BIT(IFCAP_B_RXCSUM_IPV6) 289 #define IFCAP_TXCSUM_IPV6 IFCAP_BIT(IFCAP_B_TXCSUM_IPV6) 290 #define IFCAP_HWSTATS IFCAP_BIT(IFCAP_B_HWSTATS) 291 #define IFCAP_TXRTLMT IFCAP_BIT(IFCAP_B_TXRTLMT) 292 #define IFCAP_HWRXTSTMP IFCAP_BIT(IFCAP_B_HWRXTSTMP) 293 #define IFCAP_MEXTPG IFCAP_BIT(IFCAP_B_MEXTPG) 294 #define IFCAP_TXTLS4 IFCAP_BIT(IFCAP_B_TXTLS4) 295 #define IFCAP_TXTLS6 IFCAP_BIT(IFCAP_B_TXTLS6) 296 #define IFCAP_VXLAN_HWCSUM IFCAP_BIT(IFCAP_B_VXLAN_HWCSUM) 297 #define IFCAP_VXLAN_HWTSO IFCAP_BIT(IFCAP_B_VXLAN_HWTSO) 298 #define IFCAP_TXTLS_RTLMT IFCAP_BIT(IFCAP_B_TXTLS_RTLMT) 299 300 /* IFCAP2_* are integers, not bits. */ 301 #define IFCAP2_RXTLS4 (IFCAP_B_RXTLS4 - 32) 302 #define IFCAP2_RXTLS6 (IFCAP_B_RXTLS6 - 32) 303 304 #define IFCAP2_BIT(x) (1UL << (x)) 305 306 #define IFCAP_HWCSUM_IPV6 (IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6) 307 308 #define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM) 309 #define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6) 310 #define IFCAP_WOL (IFCAP_WOL_UCAST | IFCAP_WOL_MCAST | IFCAP_WOL_MAGIC) 311 #define IFCAP_TOE (IFCAP_TOE4 | IFCAP_TOE6) 312 #define IFCAP_TXTLS (IFCAP_TXTLS4 | IFCAP_TXTLS6) 313 314 #define IFCAP_CANTCHANGE (IFCAP_NETMAP | IFCAP_NV) 315 #define IFCAP_ALLCAPS 0xffffffff 316 317 #define IFQ_MAXLEN 50 318 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ 319 320 /* 321 * Message format for use in obtaining information about interfaces 322 * from getkerninfo and the routing socket 323 * For the new, extensible interface see struct if_msghdrl below. 324 */ 325 struct if_msghdr { 326 u_short ifm_msglen; /* to skip over non-understood messages */ 327 u_char ifm_version; /* future binary compatibility */ 328 u_char ifm_type; /* message type */ 329 int ifm_addrs; /* like rtm_addrs */ 330 int ifm_flags; /* value of if_flags */ 331 u_short ifm_index; /* index for associated ifp */ 332 u_short _ifm_spare1; 333 struct if_data ifm_data;/* statistics and other data about if */ 334 }; 335 336 /* 337 * The 'l' version shall be used by new interfaces, like NET_RT_IFLISTL. It is 338 * extensible after ifm_data_off or within ifm_data. Both the if_msghdr and 339 * if_data now have a member field detailing the struct length in addition to 340 * the routing message length. Macros are provided to find the start of 341 * ifm_data and the start of the socket address structures immediately following 342 * struct if_msghdrl given a pointer to struct if_msghdrl. 343 */ 344 #define IF_MSGHDRL_IFM_DATA(_l) \ 345 (struct if_data *)((char *)(_l) + (_l)->ifm_data_off) 346 #define IF_MSGHDRL_RTA(_l) \ 347 (void *)((uintptr_t)(_l) + (_l)->ifm_len) 348 struct if_msghdrl { 349 u_short ifm_msglen; /* to skip over non-understood messages */ 350 u_char ifm_version; /* future binary compatibility */ 351 u_char ifm_type; /* message type */ 352 int ifm_addrs; /* like rtm_addrs */ 353 int ifm_flags; /* value of if_flags */ 354 u_short ifm_index; /* index for associated ifp */ 355 u_short _ifm_spare1; /* spare space to grow if_index, see if_var.h */ 356 u_short ifm_len; /* length of if_msghdrl incl. if_data */ 357 u_short ifm_data_off; /* offset of if_data from beginning */ 358 int _ifm_spare2; 359 struct if_data ifm_data;/* statistics and other data about if */ 360 }; 361 362 /* 363 * Message format for use in obtaining information about interface addresses 364 * from getkerninfo and the routing socket 365 * For the new, extensible interface see struct ifa_msghdrl below. 366 */ 367 struct ifa_msghdr { 368 u_short ifam_msglen; /* to skip over non-understood messages */ 369 u_char ifam_version; /* future binary compatibility */ 370 u_char ifam_type; /* message type */ 371 int ifam_addrs; /* like rtm_addrs */ 372 int ifam_flags; /* value of ifa_flags */ 373 u_short ifam_index; /* index for associated ifp */ 374 u_short _ifam_spare1; 375 int ifam_metric; /* value of ifa_ifp->if_metric */ 376 }; 377 378 /* 379 * The 'l' version shall be used by new interfaces, like NET_RT_IFLISTL. It is 380 * extensible after ifam_metric or within ifam_data. Both the ifa_msghdrl and 381 * if_data now have a member field detailing the struct length in addition to 382 * the routing message length. Macros are provided to find the start of 383 * ifm_data and the start of the socket address structures immediately following 384 * struct ifa_msghdrl given a pointer to struct ifa_msghdrl. 385 */ 386 #define IFA_MSGHDRL_IFAM_DATA(_l) \ 387 (struct if_data *)((char *)(_l) + (_l)->ifam_data_off) 388 #define IFA_MSGHDRL_RTA(_l) \ 389 (void *)((uintptr_t)(_l) + (_l)->ifam_len) 390 struct ifa_msghdrl { 391 u_short ifam_msglen; /* to skip over non-understood messages */ 392 u_char ifam_version; /* future binary compatibility */ 393 u_char ifam_type; /* message type */ 394 int ifam_addrs; /* like rtm_addrs */ 395 int ifam_flags; /* value of ifa_flags */ 396 u_short ifam_index; /* index for associated ifp */ 397 u_short _ifam_spare1; /* spare space to grow if_index, see if_var.h */ 398 u_short ifam_len; /* length of ifa_msghdrl incl. if_data */ 399 u_short ifam_data_off; /* offset of if_data from beginning */ 400 int ifam_metric; /* value of ifa_ifp->if_metric */ 401 struct if_data ifam_data;/* statistics and other data about if or 402 * address */ 403 }; 404 405 /* 406 * Message format for use in obtaining information about multicast addresses 407 * from the routing socket 408 */ 409 struct ifma_msghdr { 410 u_short ifmam_msglen; /* to skip over non-understood messages */ 411 u_char ifmam_version; /* future binary compatibility */ 412 u_char ifmam_type; /* message type */ 413 int ifmam_addrs; /* like rtm_addrs */ 414 int ifmam_flags; /* value of ifa_flags */ 415 u_short ifmam_index; /* index for associated ifp */ 416 u_short _ifmam_spare1; 417 }; 418 419 /* 420 * Message format announcing the arrival or departure of a network interface. 421 */ 422 struct if_announcemsghdr { 423 u_short ifan_msglen; /* to skip over non-understood messages */ 424 u_char ifan_version; /* future binary compatibility */ 425 u_char ifan_type; /* message type */ 426 u_short ifan_index; /* index for associated ifp */ 427 char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 428 u_short ifan_what; /* what type of announcement */ 429 }; 430 431 #define IFAN_ARRIVAL 0 /* interface arrival */ 432 #define IFAN_DEPARTURE 1 /* interface departure */ 433 434 /* 435 * Buffer with length to be used in SIOCGIFDESCR/SIOCSIFDESCR requests 436 */ 437 struct ifreq_buffer { 438 size_t length; 439 void *buffer; 440 }; 441 442 struct ifreq_nv_req { 443 u_int buf_length; /* Total size of buffer, 444 u_int for ABI struct ifreq */ 445 u_int length; /* Length of the filled part */ 446 void *buffer; /* Buffer itself, containing packed nv */ 447 }; 448 449 #define IFR_CAP_NV_MAXBUFSIZE (2 * 1024 * 1024) 450 451 /* 452 * Interface request structure used for socket 453 * ioctl's. All interface ioctl's must have parameter 454 * definitions which begin with ifr_name. The 455 * remainder may be interface specific. 456 */ 457 struct ifreq { 458 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 459 union { 460 struct sockaddr ifru_addr; 461 struct sockaddr ifru_dstaddr; 462 struct sockaddr ifru_broadaddr; 463 struct ifreq_buffer ifru_buffer; 464 short ifru_flags[2]; 465 short ifru_index; 466 int ifru_jid; 467 int ifru_metric; 468 int ifru_mtu; 469 int ifru_phys; 470 int ifru_media; 471 caddr_t ifru_data; 472 int ifru_cap[2]; 473 u_int ifru_fib; 474 u_char ifru_vlan_pcp; 475 struct ifreq_nv_req ifru_nv; 476 } ifr_ifru; 477 #define ifr_addr ifr_ifru.ifru_addr /* address */ 478 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 479 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 480 #ifndef _KERNEL 481 #define ifr_buffer ifr_ifru.ifru_buffer /* user supplied buffer with its length */ 482 #endif 483 #define ifr_flags ifr_ifru.ifru_flags[0] /* flags (low 16 bits) */ 484 #define ifr_flagshigh ifr_ifru.ifru_flags[1] /* flags (high 16 bits) */ 485 #define ifr_jid ifr_ifru.ifru_jid /* jail/vnet */ 486 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 487 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 488 #define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 489 #define ifr_media ifr_ifru.ifru_media /* physical media */ 490 #ifndef _KERNEL 491 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 492 #endif 493 #define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */ 494 #define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */ 495 #define ifr_index ifr_ifru.ifru_index /* interface index */ 496 #define ifr_fib ifr_ifru.ifru_fib /* interface fib */ 497 #define ifr_vlan_pcp ifr_ifru.ifru_vlan_pcp /* VLAN priority */ 498 #define ifr_lan_pcp ifr_ifru.ifru_vlan_pcp /* VLAN priority */ 499 #define ifr_cap_nv ifr_ifru.ifru_nv /* nv-based cap interface */ 500 }; 501 502 #define _SIZEOF_ADDR_IFREQ(ifr) \ 503 ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \ 504 (sizeof(struct ifreq) - sizeof(struct sockaddr) + \ 505 (ifr).ifr_addr.sa_len) : sizeof(struct ifreq)) 506 507 struct ifaliasreq { 508 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 509 struct sockaddr ifra_addr; 510 struct sockaddr ifra_broadaddr; 511 struct sockaddr ifra_mask; 512 int ifra_vhid; 513 }; 514 515 /* 9.x compat */ 516 struct oifaliasreq { 517 char ifra_name[IFNAMSIZ]; 518 struct sockaddr ifra_addr; 519 struct sockaddr ifra_broadaddr; 520 struct sockaddr ifra_mask; 521 }; 522 523 struct ifmediareq { 524 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 525 int ifm_current; /* current media options */ 526 int ifm_mask; /* don't care mask */ 527 int ifm_status; /* media status */ 528 int ifm_active; /* active options */ 529 int ifm_count; /* # entries in ifm_ulist array */ 530 int *ifm_ulist; /* media words */ 531 }; 532 533 struct ifdrv { 534 char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 535 unsigned long ifd_cmd; 536 size_t ifd_len; 537 void *ifd_data; 538 }; 539 540 /* 541 * Structure used to retrieve aux status data from interfaces. 542 * Kernel suppliers to this interface should respect the formatting 543 * needed by ifconfig(8): each line starts with a TAB and ends with 544 * a newline. The canonical example to copy and paste is in if_tun.c. 545 */ 546 547 #define IFSTATMAX 800 /* 10 lines of text */ 548 struct ifstat { 549 char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 550 char ascii[IFSTATMAX + 1]; 551 }; 552 553 /* 554 * Structure used in SIOCGIFCONF request. 555 * Used to retrieve interface configuration 556 * for machine (useful for programs which 557 * must know all networks accessible). 558 */ 559 struct ifconf { 560 int ifc_len; /* size of associated buffer */ 561 union { 562 caddr_t ifcu_buf; 563 struct ifreq *ifcu_req; 564 } ifc_ifcu; 565 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 566 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 567 }; 568 569 /* 570 * interface groups 571 */ 572 573 #define IFG_ALL "all" /* group contains all interfaces */ 574 /* XXX: will we implement this? */ 575 #define IFG_EGRESS "egress" /* if(s) default route(s) point to */ 576 577 struct ifg_req { 578 union { 579 char ifgrqu_group[IFNAMSIZ]; 580 char ifgrqu_member[IFNAMSIZ]; 581 } ifgrq_ifgrqu; 582 #define ifgrq_group ifgrq_ifgrqu.ifgrqu_group 583 #define ifgrq_member ifgrq_ifgrqu.ifgrqu_member 584 }; 585 586 /* 587 * Used to lookup groups for an interface 588 */ 589 struct ifgroupreq { 590 char ifgr_name[IFNAMSIZ]; 591 u_int ifgr_len; 592 union { 593 char ifgru_group[IFNAMSIZ]; 594 struct ifg_req *ifgru_groups; 595 } ifgr_ifgru; 596 #define ifgr_group ifgr_ifgru.ifgru_group 597 #define ifgr_groups ifgr_ifgru.ifgru_groups 598 }; 599 600 /* 601 * Structure used to request i2c data 602 * from interface transceivers. 603 */ 604 struct ifi2creq { 605 uint8_t dev_addr; /* i2c address (0xA0, 0xA2) */ 606 uint8_t offset; /* read offset */ 607 uint8_t len; /* read length */ 608 uint8_t spare0; 609 uint32_t spare1; 610 uint8_t data[8]; /* read buffer */ 611 }; 612 613 /* 614 * RSS hash. 615 */ 616 617 #define RSS_FUNC_NONE 0 /* RSS disabled */ 618 #define RSS_FUNC_PRIVATE 1 /* non-standard */ 619 #define RSS_FUNC_TOEPLITZ 2 620 621 #define RSS_TYPE_IPV4 0x00000001 622 #define RSS_TYPE_TCP_IPV4 0x00000002 623 #define RSS_TYPE_IPV6 0x00000004 624 #define RSS_TYPE_IPV6_EX 0x00000008 625 #define RSS_TYPE_TCP_IPV6 0x00000010 626 #define RSS_TYPE_TCP_IPV6_EX 0x00000020 627 #define RSS_TYPE_UDP_IPV4 0x00000040 628 #define RSS_TYPE_UDP_IPV6 0x00000080 629 #define RSS_TYPE_UDP_IPV6_EX 0x00000100 630 631 #define RSS_KEYLEN 128 632 633 struct ifrsskey { 634 char ifrk_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 635 uint8_t ifrk_func; /* RSS_FUNC_ */ 636 uint8_t ifrk_spare0; 637 uint16_t ifrk_keylen; 638 uint8_t ifrk_key[RSS_KEYLEN]; 639 }; 640 641 struct ifrsshash { 642 char ifrh_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 643 uint8_t ifrh_func; /* RSS_FUNC_ */ 644 uint8_t ifrh_spare0; 645 uint16_t ifrh_spare1; 646 uint32_t ifrh_types; /* RSS_TYPE_ */ 647 }; 648 649 #define IFNET_PCP_NONE 0xff /* PCP disabled */ 650 651 #define IFDR_MSG_SIZE 64 652 #define IFDR_REASON_MSG 1 653 #define IFDR_REASON_VENDOR 2 654 struct ifdownreason { 655 char ifdr_name[IFNAMSIZ]; 656 uint32_t ifdr_reason; 657 uint32_t ifdr_vendor; 658 char ifdr_msg[IFDR_MSG_SIZE]; 659 }; 660 661 #endif /* __BSD_VISIBLE */ 662 663 /* 664 * Opaque interface structure. 665 */ 666 667 typedef struct ifnet *if_t; 668 669 #ifdef _KERNEL 670 #ifdef MALLOC_DECLARE 671 MALLOC_DECLARE(M_IFADDR); 672 MALLOC_DECLARE(M_IFMADDR); 673 #endif 674 675 extern struct sx ifnet_detach_sxlock; 676 677 struct nvlist; 678 struct ifcap_nv_bit_name; 679 int if_capnv_to_capint(const struct nvlist *nv, int *old_cap, 680 const struct ifcap_nv_bit_name *nn, bool all); 681 void if_capint_to_capnv(struct nvlist *nv, 682 const struct ifcap_nv_bit_name *nn, int ifr_cap, int ifr_req); 683 struct siocsifcapnv_driver_data { 684 int reqcap; 685 int reqcap2; 686 struct nvlist *nvcap; 687 }; 688 #endif 689 690 #ifndef _KERNEL 691 struct if_nameindex { 692 unsigned int if_index; /* 1, 2, ... */ 693 char *if_name; /* null terminated name: "le0", ... */ 694 }; 695 696 __BEGIN_DECLS 697 void if_freenameindex(struct if_nameindex *); 698 char *if_indextoname(unsigned int, char *); 699 struct if_nameindex *if_nameindex(void); 700 unsigned int if_nametoindex(const char *); 701 __END_DECLS 702 #endif 703 #endif /* !_NET_IF_H_ */