398c49b48a
* defs.h [!MAX_ADDR_LEN] (MAX_ADDR_LEN): New macro. (sprint_hwaddr): New declaration. (print_hwaddr): New inline function, a wrapper for sprint_hwaddr. * print_fields.h (PRINT_FIELD_HWADDR_SZ): New macro. * print_mac.c: Include "xlat/arp_hardware_types.h" under XLAT_MACROS_ONLY. [!MAX_ADDR_LEN] (MAX_ADDR_LEN): Remove. (sprint_hwaddr): New function. * sock.c (print_ifreq) <SIOCSIFHWADDR, SIOCGIFHWADDR>: Print hardware address using PRINT_FIELD_HWADDR_SZ.
137 lines
5.1 KiB
C
137 lines
5.1 KiB
C
/*
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* Copyright (c) 2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#include "error_prints.h"
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#include "xstring.h"
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#define XLAT_MACROS_ONLY
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# include "xlat/arp_hardware_types.h"
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#undef XLAT_MACROS_ONLY
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const char *
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sprint_mac_addr(const uint8_t addr[], size_t size)
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{
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static char res[MAX_ADDR_LEN * 3];
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if (size > MAX_ADDR_LEN) {
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error_func_msg("Address size (%zu) is more than maximum "
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"supported (%u)", size, MAX_ADDR_LEN);
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return NULL;
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}
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char *ptr = res;
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for (size_t i = 0; i < size; i++)
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ptr = xappendstr(res, ptr, "%s%02x", i ? ":" : "", addr[i]);
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return res;
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}
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const char *
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sprint_hwaddr(const uint8_t hwaddr[], size_t size, uint32_t devtype)
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{
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static uint8_t hwaddr_sizes[] = {
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[0 ... ARPHRD_IEEE802_TR] = 255,
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[ARPHRD_NETROM] = 7 /* AX25_ADDR_LEN */,
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[ARPHRD_ETHER] = 6 /* ETH_ALEN */,
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/* ARPHRD_EETHER - no actual devices in Linux */
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[ARPHRD_AX25] = 7 /* AX25_ADDR_LEN */,
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/* ARPHRD_PRONET - no actual devices in Linux */
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/* ARPHRD_CHAOS - no actual devices in Linux */
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[ARPHRD_IEEE802] = 6 /* FC_ALEN */,
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[ARPHRD_ARCNET] = 1 /* ARCNET_ALEN */,
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/* ARPHRD_APPLETLK - no actual devices in Linux */
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[ARPHRD_DLCI] = sizeof(short),
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/* ARPHRD_ATM - no explicit setting */
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/* ARPHRD_METRICOM - no actual devices in Linux */
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[ARPHRD_IEEE1394] = 16 /* FWNET_ALEN */,
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[ARPHRD_EUI64] = 8 /* EUI64_ADDR_LEN */,
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[ARPHRD_INFINIBAND] = 20 /* INFINIBAND_ALEN */,
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[ARPHRD_SLIP] = 0,
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/* ARPHRD_CSLIP - no actual devices in Linux */
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/* ARPHRD_SLIP6 - no actual devices in Linux */
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/* ARPHRD_CSLIP6 - no actual devices in Linux */
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/* ARPHRD_RSRVD - no actual devices in Linux */
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/* ARPHRD_ADAPT - no actual devices in Linux */
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[ARPHRD_ROSE] = 5 /* ROSE_ADDR_LEN */,
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[ARPHRD_X25] = 0,
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/* ARPHRD_HWX25 - no actual devices in Linux */
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[ARPHRD_CAN] = 0,
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[ARPHRD_PPP] = 0,
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/* ARPHRD_CISCO - no actual devices in Linux */
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/* ARPHRD_LAPB - no actual devices in Linux */
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/* ARPHRD_DDCMP - no actual devices in Linux */
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[ARPHRD_RAWHDLC] = 0,
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[ARPHRD_RAWIP] = 0,
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[ARPHRD_TUNNEL] = 4 /* IPIP */,
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[ARPHRD_TUNNEL6] = 16 /* sizeof(struct in6_addr) */,
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/* ARPHRD_FRAD - no actual devices in Linux */
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/* ARPHRD_SKIP - no actual devices in Linux */
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[ARPHRD_LOOPBACK] = 6 /* ETH_ALEN */,
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[ARPHRD_LOCALTLK] = 1 /* LTALK_ALEN */,
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[ARPHRD_FDDI] = 6 /* FDDI_K_ALEN */,
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/* ARPHRD_BIF - no actual devices in Linux */
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[ARPHRD_SIT] = 4,
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[ARPHRD_IPDDP] = 0,
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[ARPHRD_IPGRE] = 4,
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[ARPHRD_PIMREG] = 0,
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[ARPHRD_HIPPI] = 6 /* HIPPI_ALEN */,
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/* ARPHRD_ASH - no actual devices in Linux */
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/* ARPHRD_ECONET - no actual devices in Linux */
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[ARPHRD_IRDA] = 4 /* LAP_ALEN */,
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/* ARPHRD_FCPP - no actual devices in Linux */
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/* ARPHRD_FCAL - no actual devices in Linux */
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/* ARPHRD_FCPL - no actual devices in Linux */
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/* ARPHRD_FCFABRIC - no actual devices in Linux */
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/* ARPHRD_IEEE802_TR - no actual devices in Linux */
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[ARPHRD_IEEE80211] = 6 /* ETH_ALEN */,
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[ARPHRD_IEEE80211_PRISM] = 6 /* ETH_ALEN */,
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[ARPHRD_IEEE80211_RADIOTAP] = 6 /* ETH_ALEN */,
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[ARPHRD_IEEE802154]
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= 8 /* IEEE802154_EXTENDED_ADDR_LEN */,
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[ARPHRD_IEEE802154_MONITOR]
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= 8 /* IEEE802154_EXTENDED_ADDR_LEN */,
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[ARPHRD_PHONET] = 1,
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[ARPHRD_PHONET_PIPE] = 1,
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[ARPHRD_CAIF] = 0,
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[ARPHRD_IP6GRE] = 16 /* sizeof(struct in6_addr) */,
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[ARPHRD_NETLINK] = 0,
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[ARPHRD_6LOWPAN] = 8 /* EUI64_ADDR_LEN */
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/* ^ or ETH_ALEN, depending on lltype */,
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[ARPHRD_VSOCKMON] = 0,
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};
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uint8_t sz = (devtype < ARRAY_SIZE(hwaddr_sizes))
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? hwaddr_sizes[devtype] : 255;
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return sprint_mac_addr(hwaddr, MIN(size, sz));
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}
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