package/network/utils/ethtool/patches/100-uapi-Bring-in-if-h.patch

   1 From:   Florian Fainelli <f.fainelli@gmail.com>
   2 To:     netdev@vger.kernel.org
   3 Subject: [PATCH ethtool v2 1/3] uapi: Bring in if.h
   4 Date:   Sat, 14 Jan 2023 08:34:09 -0800
   5
   6 Bring in if.h from commit eec517cdb481 ("net: Add IF_OPER_TESTING") as
   7 well as uapi/linux/hdlc/ioctl.h. Ensure that we define all of the
   8 necessary guards to provide updated definitions of ifmap, ifreq and
   9 IFNAMSIZ. This resolves build issues with kernel headers < 4.11 which
  10 lacked 2618be7dccf8739b89e1906b64bd8d551af351e6 ("uapi: fix linux/if.h
  11 userspace compilation errors").
  12
  13 Fixes: 1fa60003a8b8 ("misc: header includes cleanup")
  14 Reported-by: Markus Mayer <mmayer@broadcom.com>
  15 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  16 ---
  17  Makefile.am             |   6 +-
  18  internal.h              |   7 +-
  19  uapi/linux/hdlc/ioctl.h |  94 +++++++++++++
  20  uapi/linux/if.h         | 296 ++++++++++++++++++++++++++++++++++++++++
  21  4 files changed, 397 insertions(+), 6 deletions(-)
  22  create mode 100644 uapi/linux/hdlc/ioctl.h
  23  create mode 100644 uapi/linux/if.h
  24
  25 --- a/Makefile.am
  26 +++ b/Makefile.am
  27 @@ -7,7 +7,8 @@ EXTRA_DIST = LICENSE ethtool.8 ethtool.s
  28
  29  sbin_PROGRAMS = ethtool
  30  ethtool_SOURCES = ethtool.c uapi/linux/ethtool.h internal.h \
  31 -                 uapi/linux/net_tstamp.h rxclass.c common.c common.h \
  32 +                 uapi/linux/net_tstamp.h uapi/linux/if.h uapi/linux/hdlc/ioctl.h \
  33 +                 rxclass.c common.c common.h \
  34                   json_writer.c json_writer.h json_print.c json_print.h \
  35                   list.h
  36  if ETHTOOL_ENABLE_PRETTY_DUMP
  37 @@ -43,7 +44,8 @@ ethtool_SOURCES += \
  38                   netlink/desc-rtnl.c netlink/cable_test.c netlink/tunnels.c \
  39                   uapi/linux/ethtool_netlink.h \
  40                   uapi/linux/netlink.h uapi/linux/genetlink.h \
  41 -                 uapi/linux/rtnetlink.h uapi/linux/if_link.h
  42 +                 uapi/linux/rtnetlink.h uapi/linux/if_link.h \
  43 +                 uapi/linux/if.h uapi/linux/hdlc/ioctl.h
  44  AM_CPPFLAGS += @MNL_CFLAGS@
  45  LDADD += @MNL_LIBS@
  46  endif
  47 --- a/internal.h
  48 +++ b/internal.h
  49 @@ -21,6 +21,9 @@
  50  #include <unistd.h>
  51  #include <endian.h>
  52  #include <sys/ioctl.h>
  53 +#define __UAPI_DEF_IF_IFNAMSIZ 1
  54 +#define __UAPI_DEF_IF_IFMAP    1
  55 +#define __UAPI_DEF_IF_IFREQ    1
  56  #include <linux/if.h>
  57
  58  #include "json_writer.h"
  59 @@ -52,10 +55,6 @@ typedef int32_t s32;
  60  #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
  61  #endif
  62
  63 -#ifndef ALTIFNAMSIZ
  64 -#define ALTIFNAMSIZ 128
  65 -#endif
  66 -
  67  #include <linux/ethtool.h>
  68  #include <linux/net_tstamp.h>
  69
  70 --- /dev/null
  71 +++ b/uapi/linux/hdlc/ioctl.h
  72 @@ -0,0 +1,94 @@
  73 +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  74 +#ifndef __HDLC_IOCTL_H__
  75 +#define __HDLC_IOCTL_H__
  76 +
  77 +
  78 +#define GENERIC_HDLC_VERSION 4 /* For synchronization with sethdlc utility */
  79 +
  80 +#define CLOCK_DEFAULT   0      /* Default setting */
  81 +#define CLOCK_EXT      1       /* External TX and RX clock - DTE */
  82 +#define CLOCK_INT      2       /* Internal TX and RX clock - DCE */
  83 +#define CLOCK_TXINT    3       /* Internal TX and external RX clock */
  84 +#define CLOCK_TXFROMRX 4       /* TX clock derived from external RX clock */
  85 +
  86 +
  87 +#define ENCODING_DEFAULT       0 /* Default setting */
  88 +#define ENCODING_NRZ           1
  89 +#define ENCODING_NRZI          2
  90 +#define ENCODING_FM_MARK       3
  91 +#define ENCODING_FM_SPACE      4
  92 +#define ENCODING_MANCHESTER    5
  93 +
  94 +
  95 +#define PARITY_DEFAULT         0 /* Default setting */
  96 +#define PARITY_NONE            1 /* No parity */
  97 +#define PARITY_CRC16_PR0       2 /* CRC16, initial value 0x0000 */
  98 +#define PARITY_CRC16_PR1       3 /* CRC16, initial value 0xFFFF */
  99 +#define PARITY_CRC16_PR0_CCITT 4 /* CRC16, initial 0x0000, ITU-T version */
 100 +#define PARITY_CRC16_PR1_CCITT 5 /* CRC16, initial 0xFFFF, ITU-T version */
 101 +#define PARITY_CRC32_PR0_CCITT 6 /* CRC32, initial value 0x00000000 */
 102 +#define PARITY_CRC32_PR1_CCITT 7 /* CRC32, initial value 0xFFFFFFFF */
 103 +
 104 +#define LMI_DEFAULT            0 /* Default setting */
 105 +#define LMI_NONE               1 /* No LMI, all PVCs are static */
 106 +#define LMI_ANSI               2 /* ANSI Annex D */
 107 +#define LMI_CCITT              3 /* ITU-T Annex A */
 108 +#define LMI_CISCO              4 /* The "original" LMI, aka Gang of Four */
 109 +
 110 +#ifndef __ASSEMBLY__
 111 +
 112 +typedef struct {
 113 +       unsigned int clock_rate; /* bits per second */
 114 +       unsigned int clock_type; /* internal, external, TX-internal etc. */
 115 +       unsigned short loopback;
 116 +} sync_serial_settings;          /* V.35, V.24, X.21 */
 117 +
 118 +typedef struct {
 119 +       unsigned int clock_rate; /* bits per second */
 120 +       unsigned int clock_type; /* internal, external, TX-internal etc. */
 121 +       unsigned short loopback;
 122 +       unsigned int slot_map;
 123 +} te1_settings;                  /* T1, E1 */
 124 +
 125 +typedef struct {
 126 +       unsigned short encoding;
 127 +       unsigned short parity;
 128 +} raw_hdlc_proto;
 129 +
 130 +typedef struct {
 131 +       unsigned int t391;
 132 +       unsigned int t392;
 133 +       unsigned int n391;
 134 +       unsigned int n392;
 135 +       unsigned int n393;
 136 +       unsigned short lmi;
 137 +       unsigned short dce; /* 1 for DCE (network side) operation */
 138 +} fr_proto;
 139 +
 140 +typedef struct {
 141 +       unsigned int dlci;
 142 +} fr_proto_pvc;          /* for creating/deleting FR PVCs */
 143 +
 144 +typedef struct {
 145 +       unsigned int dlci;
 146 +       char master[IFNAMSIZ];  /* Name of master FRAD device */
 147 +}fr_proto_pvc_info;            /* for returning PVC information only */
 148 +
 149 +typedef struct {
 150 +    unsigned int interval;
 151 +    unsigned int timeout;
 152 +} cisco_proto;
 153 +
 154 +typedef struct {
 155 +       unsigned short dce; /* 1 for DCE (network side) operation */
 156 +       unsigned int modulo; /* modulo (8 = basic / 128 = extended) */
 157 +       unsigned int window; /* frame window size */
 158 +       unsigned int t1; /* timeout t1 */
 159 +       unsigned int t2; /* timeout t2 */
 160 +       unsigned int n2; /* frame retry counter */
 161 +} x25_hdlc_proto;
 162 +
 163 +/* PPP doesn't need any info now - supply length = 0 to ioctl */
 164 +
 165 +#endif /* __ASSEMBLY__ */
 166 +#endif /* __HDLC_IOCTL_H__ */
 167 --- /dev/null
 168 +++ b/uapi/linux/if.h
 169 @@ -0,0 +1,296 @@
 170 +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 171 +/*
 172 + * INET                An implementation of the TCP/IP protocol suite for the LINUX
 173 + *             operating system.  INET is implemented using the  BSD Socket
 174 + *             interface as the means of communication with the user level.
 175 + *
 176 + *             Global definitions for the INET interface module.
 177 + *
 178 + * Version:    @(#)if.h        1.0.2   04/18/93
 179 + *
 180 + * Authors:    Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
 181 + *             Ross Biro
 182 + *             Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 183 + *
 184 + *             This program is free software; you can redistribute it and/or
 185 + *             modify it under the terms of the GNU General Public License
 186 + *             as published by the Free Software Foundation; either version
 187 + *             2 of the License, or (at your option) any later version.
 188 + */
 189 +#ifndef _LINUX_IF_H
 190 +#define _LINUX_IF_H
 191 +
 192 +#include <linux/libc-compat.h>          /* for compatibility with glibc */
 193 +#include <linux/types.h>               /* for "__kernel_caddr_t" et al */
 194 +#include <linux/socket.h>              /* for "struct sockaddr" et al  */
 195 +               /* for "__user" et al           */
 196 +
 197 +#include <sys/socket.h>                        /* for struct sockaddr.         */
 198 +
 199 +#if __UAPI_DEF_IF_IFNAMSIZ
 200 +#define        IFNAMSIZ        16
 201 +#endif /* __UAPI_DEF_IF_IFNAMSIZ */
 202 +#define        IFALIASZ        256
 203 +#define        ALTIFNAMSIZ     128
 204 +#include <linux/hdlc/ioctl.h>
 205 +
 206 +/* For glibc compatibility. An empty enum does not compile. */
 207 +#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || \
 208 +    __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0
 209 +/**
 210 + * enum net_device_flags - &struct net_device flags
 211 + *
 212 + * These are the &struct net_device flags, they can be set by drivers, the
 213 + * kernel and some can be triggered by userspace. Userspace can query and
 214 + * set these flags using userspace utilities but there is also a sysfs
 215 + * entry available for all dev flags which can be queried and set. These flags
 216 + * are shared for all types of net_devices. The sysfs entries are available
 217 + * via /sys/class/net/<dev>/flags. Flags which can be toggled through sysfs
 218 + * are annotated below, note that only a few flags can be toggled and some
 219 + * other flags are always preserved from the original net_device flags
 220 + * even if you try to set them via sysfs. Flags which are always preserved
 221 + * are kept under the flag grouping @IFF_VOLATILE. Flags which are __volatile__
 222 + * are annotated below as such.
 223 + *
 224 + * You should have a pretty good reason to be extending these flags.
 225 + *
 226 + * @IFF_UP: interface is up. Can be toggled through sysfs.
 227 + * @IFF_BROADCAST: broadcast address valid. Volatile.
 228 + * @IFF_DEBUG: turn on debugging. Can be toggled through sysfs.
 229 + * @IFF_LOOPBACK: is a loopback net. Volatile.
 230 + * @IFF_POINTOPOINT: interface is has p-p link. Volatile.
 231 + * @IFF_NOTRAILERS: avoid use of trailers. Can be toggled through sysfs.
 232 + *     Volatile.
 233 + * @IFF_RUNNING: interface RFC2863 OPER_UP. Volatile.
 234 + * @IFF_NOARP: no ARP protocol. Can be toggled through sysfs. Volatile.
 235 + * @IFF_PROMISC: receive all packets. Can be toggled through sysfs.
 236 + * @IFF_ALLMULTI: receive all multicast packets. Can be toggled through
 237 + *     sysfs.
 238 + * @IFF_MASTER: master of a load balancer. Volatile.
 239 + * @IFF_SLAVE: slave of a load balancer. Volatile.
 240 + * @IFF_MULTICAST: Supports multicast. Can be toggled through sysfs.
 241 + * @IFF_PORTSEL: can set media type. Can be toggled through sysfs.
 242 + * @IFF_AUTOMEDIA: auto media select active. Can be toggled through sysfs.
 243 + * @IFF_DYNAMIC: dialup device with changing addresses. Can be toggled
 244 + *     through sysfs.
 245 + * @IFF_LOWER_UP: driver signals L1 up. Volatile.
 246 + * @IFF_DORMANT: driver signals dormant. Volatile.
 247 + * @IFF_ECHO: echo sent packets. Volatile.
 248 + */
 249 +enum net_device_flags {
 250 +/* for compatibility with glibc net/if.h */
 251 +#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
 252 +       IFF_UP                          = 1<<0,  /* sysfs */
 253 +       IFF_BROADCAST                   = 1<<1,  /* __volatile__ */
 254 +       IFF_DEBUG                       = 1<<2,  /* sysfs */
 255 +       IFF_LOOPBACK                    = 1<<3,  /* __volatile__ */
 256 +       IFF_POINTOPOINT                 = 1<<4,  /* __volatile__ */
 257 +       IFF_NOTRAILERS                  = 1<<5,  /* sysfs */
 258 +       IFF_RUNNING                     = 1<<6,  /* __volatile__ */
 259 +       IFF_NOARP                       = 1<<7,  /* sysfs */
 260 +       IFF_PROMISC                     = 1<<8,  /* sysfs */
 261 +       IFF_ALLMULTI                    = 1<<9,  /* sysfs */
 262 +       IFF_MASTER                      = 1<<10, /* __volatile__ */
 263 +       IFF_SLAVE                       = 1<<11, /* __volatile__ */
 264 +       IFF_MULTICAST                   = 1<<12, /* sysfs */
 265 +       IFF_PORTSEL                     = 1<<13, /* sysfs */
 266 +       IFF_AUTOMEDIA                   = 1<<14, /* sysfs */
 267 +       IFF_DYNAMIC                     = 1<<15, /* sysfs */
 268 +#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
 269 +#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
 270 +       IFF_LOWER_UP                    = 1<<16, /* __volatile__ */
 271 +       IFF_DORMANT                     = 1<<17, /* __volatile__ */
 272 +       IFF_ECHO                        = 1<<18, /* __volatile__ */
 273 +#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
 274 +};
 275 +#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */
 276 +
 277 +/* for compatibility with glibc net/if.h */
 278 +#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
 279 +#define IFF_UP                         IFF_UP
 280 +#define IFF_BROADCAST                  IFF_BROADCAST
 281 +#define IFF_DEBUG                      IFF_DEBUG
 282 +#define IFF_LOOPBACK                   IFF_LOOPBACK
 283 +#define IFF_POINTOPOINT                        IFF_POINTOPOINT
 284 +#define IFF_NOTRAILERS                 IFF_NOTRAILERS
 285 +#define IFF_RUNNING                    IFF_RUNNING
 286 +#define IFF_NOARP                      IFF_NOARP
 287 +#define IFF_PROMISC                    IFF_PROMISC
 288 +#define IFF_ALLMULTI                   IFF_ALLMULTI
 289 +#define IFF_MASTER                     IFF_MASTER
 290 +#define IFF_SLAVE                      IFF_SLAVE
 291 +#define IFF_MULTICAST                  IFF_MULTICAST
 292 +#define IFF_PORTSEL                    IFF_PORTSEL
 293 +#define IFF_AUTOMEDIA                  IFF_AUTOMEDIA
 294 +#define IFF_DYNAMIC                    IFF_DYNAMIC
 295 +#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
 296 +
 297 +#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
 298 +#define IFF_LOWER_UP                   IFF_LOWER_UP
 299 +#define IFF_DORMANT                    IFF_DORMANT
 300 +#define IFF_ECHO                       IFF_ECHO
 301 +#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
 302 +
 303 +#define IFF_VOLATILE   (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
 304 +               IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
 305 +
 306 +#define IF_GET_IFACE   0x0001          /* for querying only */
 307 +#define IF_GET_PROTO   0x0002
 308 +
 309 +/* For definitions see hdlc.h */
 310 +#define IF_IFACE_V35   0x1000          /* V.35 serial interface        */
 311 +#define IF_IFACE_V24   0x1001          /* V.24 serial interface        */
 312 +#define IF_IFACE_X21   0x1002          /* X.21 serial interface        */
 313 +#define IF_IFACE_T1    0x1003          /* T1 telco serial interface    */
 314 +#define IF_IFACE_E1    0x1004          /* E1 telco serial interface    */
 315 +#define IF_IFACE_SYNC_SERIAL 0x1005    /* can't be set by software     */
 316 +#define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */
 317 +
 318 +/* For definitions see hdlc.h */
 319 +#define IF_PROTO_HDLC  0x2000          /* raw HDLC protocol            */
 320 +#define IF_PROTO_PPP   0x2001          /* PPP protocol                 */
 321 +#define IF_PROTO_CISCO 0x2002          /* Cisco HDLC protocol          */
 322 +#define IF_PROTO_FR    0x2003          /* Frame Relay protocol         */
 323 +#define IF_PROTO_FR_ADD_PVC 0x2004     /*    Create FR PVC             */
 324 +#define IF_PROTO_FR_DEL_PVC 0x2005     /*    Delete FR PVC             */
 325 +#define IF_PROTO_X25   0x2006          /* X.25                         */
 326 +#define IF_PROTO_HDLC_ETH 0x2007       /* raw HDLC, Ethernet emulation */
 327 +#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /*  Create FR Ethernet-bridged PVC */
 328 +#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /*  Delete FR Ethernet-bridged PVC */
 329 +#define IF_PROTO_FR_PVC        0x200A          /* for reading PVC status       */
 330 +#define IF_PROTO_FR_ETH_PVC 0x200B
 331 +#define IF_PROTO_RAW    0x200C          /* RAW Socket                   */
 332 +
 333 +/* RFC 2863 operational status */
 334 +enum {
 335 +       IF_OPER_UNKNOWN,
 336 +       IF_OPER_NOTPRESENT,
 337 +       IF_OPER_DOWN,
 338 +       IF_OPER_LOWERLAYERDOWN,
 339 +       IF_OPER_TESTING,
 340 +       IF_OPER_DORMANT,
 341 +       IF_OPER_UP,
 342 +};
 343 +
 344 +/* link modes */
 345 +enum {
 346 +       IF_LINK_MODE_DEFAULT,
 347 +       IF_LINK_MODE_DORMANT,   /* limit upward transition to dormant */
 348 +       IF_LINK_MODE_TESTING,   /* limit upward transition to testing */
 349 +};
 350 +
 351 +/*
 352 + *     Device mapping structure. I'd just gone off and designed a
 353 + *     beautiful scheme using only loadable modules with arguments
 354 + *     for driver options and along come the PCMCIA people 8)
 355 + *
 356 + *     Ah well. The get() side of this is good for WDSETUP, and it'll
 357 + *     be handy for debugging things. The set side is fine for now and
 358 + *     being very small might be worth keeping for clean configuration.
 359 + */
 360 +
 361 +/* for compatibility with glibc net/if.h */
 362 +#if __UAPI_DEF_IF_IFMAP
 363 +struct ifmap {
 364 +       unsigned long mem_start;
 365 +       unsigned long mem_end;
 366 +       unsigned short base_addr;
 367 +       unsigned char irq;
 368 +       unsigned char dma;
 369 +       unsigned char port;
 370 +       /* 3 bytes spare */
 371 +};
 372 +#endif /* __UAPI_DEF_IF_IFMAP */
 373 +
 374 +struct if_settings {
 375 +       unsigned int type;      /* Type of physical device or protocol */
 376 +       unsigned int size;      /* Size of the data allocated by the caller */
 377 +       union {
 378 +               /* {atm/eth/dsl}_settings anyone ? */
 379 +               raw_hdlc_proto          *raw_hdlc;
 380 +               cisco_proto             *cisco;
 381 +               fr_proto                *fr;
 382 +               fr_proto_pvc            *fr_pvc;
 383 +               fr_proto_pvc_info       *fr_pvc_info;
 384 +               x25_hdlc_proto          *x25;
 385 +
 386 +               /* interface settings */
 387 +               sync_serial_settings    *sync;
 388 +               te1_settings            *te1;
 389 +       } ifs_ifsu;
 390 +};
 391 +
 392 +/*
 393 + * Interface request structure used for socket
 394 + * ioctl's.  All interface ioctl's must have parameter
 395 + * definitions which begin with ifr_name.  The
 396 + * remainder may be interface specific.
 397 + */
 398 +
 399 +/* for compatibility with glibc net/if.h */
 400 +#if __UAPI_DEF_IF_IFREQ
 401 +struct ifreq {
 402 +#define IFHWADDRLEN    6
 403 +       union
 404 +       {
 405 +               char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
 406 +       } ifr_ifrn;
 407 +
 408 +       union {
 409 +               struct  sockaddr ifru_addr;
 410 +               struct  sockaddr ifru_dstaddr;
 411 +               struct  sockaddr ifru_broadaddr;
 412 +               struct  sockaddr ifru_netmask;
 413 +               struct  sockaddr ifru_hwaddr;
 414 +               short   ifru_flags;
 415 +               int     ifru_ivalue;
 416 +               int     ifru_mtu;
 417 +               struct  ifmap ifru_map;
 418 +               char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
 419 +               char    ifru_newname[IFNAMSIZ];
 420 +               void *  ifru_data;
 421 +               struct  if_settings ifru_settings;
 422 +       } ifr_ifru;
 423 +};
 424 +#endif /* __UAPI_DEF_IF_IFREQ */
 425 +
 426 +#define ifr_name       ifr_ifrn.ifrn_name      /* interface name       */
 427 +#define ifr_hwaddr     ifr_ifru.ifru_hwaddr    /* MAC address          */
 428 +#define        ifr_addr        ifr_ifru.ifru_addr      /* address              */
 429 +#define        ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-p lnk */
 430 +#define        ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address    */
 431 +#define        ifr_netmask     ifr_ifru.ifru_netmask   /* interface net mask   */
 432 +#define        ifr_flags       ifr_ifru.ifru_flags     /* flags                */
 433 +#define        ifr_metric      ifr_ifru.ifru_ivalue    /* metric               */
 434 +#define        ifr_mtu         ifr_ifru.ifru_mtu       /* mtu                  */
 435 +#define ifr_map                ifr_ifru.ifru_map       /* device map           */
 436 +#define ifr_slave      ifr_ifru.ifru_slave     /* slave device         */
 437 +#define        ifr_data        ifr_ifru.ifru_data      /* for use by interface */
 438 +#define ifr_ifindex    ifr_ifru.ifru_ivalue    /* interface index      */
 439 +#define ifr_bandwidth  ifr_ifru.ifru_ivalue    /* link bandwidth       */
 440 +#define ifr_qlen       ifr_ifru.ifru_ivalue    /* Queue length         */
 441 +#define ifr_newname    ifr_ifru.ifru_newname   /* New name             */
 442 +#define ifr_settings   ifr_ifru.ifru_settings  /* Device/proto settings*/
 443 +
 444 +/*
 445 + * Structure used in SIOCGIFCONF request.
 446 + * Used to retrieve interface configuration
 447 + * for machine (useful for programs which
 448 + * must know all networks accessible).
 449 + */
 450 +
 451 +/* for compatibility with glibc net/if.h */
 452 +#if __UAPI_DEF_IF_IFCONF
 453 +struct ifconf  {
 454 +       int     ifc_len;                        /* size of buffer       */
 455 +       union {
 456 +               char *ifcu_buf;
 457 +               struct ifreq *ifcu_req;
 458 +       } ifc_ifcu;
 459 +};
 460 +#endif /* __UAPI_DEF_IF_IFCONF */
 461 +
 462 +#define        ifc_buf ifc_ifcu.ifcu_buf               /* buffer address       */
 463 +#define        ifc_req ifc_ifcu.ifcu_req               /* array of structures  */
 464 +
 465 +#endif /* _LINUX_IF_H */