You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
460 lines
12 KiB
460 lines
12 KiB
/*
|
|
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
|
|
* Copyright (c) 1996-2018 The strace developers.
|
|
* 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. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
#include "defs.h"
|
|
#include "print_fields.h"
|
|
|
|
#include <sys/socket.h>
|
|
#if defined ALPHA || defined SH || defined SH64
|
|
# include <linux/ioctl.h>
|
|
#endif
|
|
#include <linux/sockios.h>
|
|
#include <arpa/inet.h>
|
|
#include <net/if.h>
|
|
|
|
#include DEF_MPERS_TYPE(struct_ifconf)
|
|
#include DEF_MPERS_TYPE(struct_ifreq)
|
|
|
|
typedef struct ifconf struct_ifconf;
|
|
typedef struct ifreq struct_ifreq;
|
|
|
|
#include MPERS_DEFS
|
|
|
|
#include "xlat/iffflags.h"
|
|
|
|
#define XLAT_MACROS_ONLY
|
|
# include "xlat/arp_hardware_types.h"
|
|
#undef XLAT_MACROS_ONLY
|
|
|
|
static void
|
|
print_ifname(const char *ifname)
|
|
{
|
|
print_quoted_string(ifname, IFNAMSIZ + 1, QUOTE_0_TERMINATED);
|
|
}
|
|
|
|
DIAG_PUSH_IGNORE_OVERRIDE_INIT
|
|
|
|
static void
|
|
print_ifreq(struct tcb *const tcp, const unsigned int code,
|
|
const kernel_ulong_t arg, const struct_ifreq *const ifr)
|
|
{
|
|
switch (code) {
|
|
case SIOCSIFADDR:
|
|
case SIOCGIFADDR:
|
|
PRINT_FIELD_SOCKADDR("", *ifr, ifr_addr);
|
|
break;
|
|
case SIOCSIFDSTADDR:
|
|
case SIOCGIFDSTADDR:
|
|
PRINT_FIELD_SOCKADDR("", *ifr, ifr_dstaddr);
|
|
break;
|
|
case SIOCSIFBRDADDR:
|
|
case SIOCGIFBRDADDR:
|
|
PRINT_FIELD_SOCKADDR("", *ifr, ifr_broadaddr);
|
|
break;
|
|
case SIOCSIFNETMASK:
|
|
case SIOCGIFNETMASK:
|
|
PRINT_FIELD_SOCKADDR("", *ifr, ifr_netmask);
|
|
break;
|
|
case SIOCSIFHWADDR:
|
|
case SIOCGIFHWADDR: {
|
|
static uint8_t hwaddr_sizes[] = {
|
|
[0 ... ARPHRD_IEEE802_TR] = 255,
|
|
|
|
[ARPHRD_NETROM] = 7 /* AX25_ADDR_LEN */,
|
|
[ARPHRD_ETHER] = 6 /* ETH_ALEN */,
|
|
/* ARPHRD_EETHER - no actual devices in Linux */
|
|
[ARPHRD_AX25] = 7 /* AX25_ADDR_LEN */,
|
|
/* ARPHRD_PRONET - no actual devices in Linux */
|
|
/* ARPHRD_CHAOS - no actual devices in Linux */
|
|
[ARPHRD_IEEE802] = 6 /* FC_ALEN */,
|
|
[ARPHRD_ARCNET] = 1 /* ARCNET_ALEN */,
|
|
/* ARPHRD_APPLETLK - no actual devices in Linux */
|
|
[ARPHRD_DLCI] = sizeof(short),
|
|
/* ARPHRD_ATM - no explicit setting */
|
|
/* ARPHRD_METRICOM - no actual devices in Linux */
|
|
[ARPHRD_IEEE1394] = 16 /* FWNET_ALEN */,
|
|
[ARPHRD_EUI64] = 8 /* EUI64_ADDR_LEN */,
|
|
[ARPHRD_INFINIBAND] = 20 /* INFINIBAND_ALEN */,
|
|
[ARPHRD_SLIP] = 0,
|
|
/* ARPHRD_CSLIP - no actual devices in Linux */
|
|
/* ARPHRD_SLIP6 - no actual devices in Linux */
|
|
/* ARPHRD_CSLIP6 - no actual devices in Linux */
|
|
/* ARPHRD_RSRVD - no actual devices in Linux */
|
|
/* ARPHRD_ADAPT - no actual devices in Linux */
|
|
[ARPHRD_ROSE] = 5 /* ROSE_ADDR_LEN */,
|
|
[ARPHRD_X25] = 0,
|
|
/* ARPHRD_HWX25 - no actual devices in Linux */
|
|
[ARPHRD_CAN] = 0,
|
|
[ARPHRD_PPP] = 0,
|
|
/* ARPHRD_CISCO - no actual devices in Linux */
|
|
/* ARPHRD_LAPB - no actual devices in Linux */
|
|
/* ARPHRD_DDCMP - no actual devices in Linux */
|
|
[ARPHRD_RAWHDLC] = 0,
|
|
[ARPHRD_RAWIP] = 0,
|
|
[ARPHRD_TUNNEL] = 4 /* IPIP */,
|
|
[ARPHRD_TUNNEL6] = 16 /* sizeof(struct in6_addr) */,
|
|
/* ARPHRD_FRAD - no actual devices in Linux */
|
|
/* ARPHRD_SKIP - no actual devices in Linux */
|
|
[ARPHRD_LOOPBACK] = 6 /* ETH_ALEN */,
|
|
[ARPHRD_LOCALTLK] = 1 /* LTALK_ALEN */,
|
|
[ARPHRD_FDDI] = 6 /* FDDI_K_ALEN */,
|
|
/* ARPHRD_BIF - no actual devices in Linux */
|
|
[ARPHRD_SIT] = 4,
|
|
[ARPHRD_IPDDP] = 0,
|
|
[ARPHRD_IPGRE] = 4,
|
|
[ARPHRD_PIMREG] = 0,
|
|
[ARPHRD_HIPPI] = 6 /* HIPPI_ALEN */,
|
|
/* ARPHRD_ASH - no actual devices in Linux */
|
|
/* ARPHRD_ECONET - no actual devices in Linux */
|
|
[ARPHRD_IRDA] = 4 /* LAP_ALEN */,
|
|
/* ARPHRD_FCPP - no actual devices in Linux */
|
|
/* ARPHRD_FCAL - no actual devices in Linux */
|
|
/* ARPHRD_FCPL - no actual devices in Linux */
|
|
/* ARPHRD_FCFABRIC - no actual devices in Linux */
|
|
/* ARPHRD_IEEE802_TR - no actual devices in Linux */
|
|
[ARPHRD_IEEE80211] = 6 /* ETH_ALEN */,
|
|
[ARPHRD_IEEE80211_PRISM] = 6 /* ETH_ALEN */,
|
|
[ARPHRD_IEEE80211_RADIOTAP] = 6 /* ETH_ALEN */,
|
|
[ARPHRD_IEEE802154]
|
|
= 8 /* IEEE802154_EXTENDED_ADDR_LEN */,
|
|
[ARPHRD_IEEE802154_MONITOR]
|
|
= 8 /* IEEE802154_EXTENDED_ADDR_LEN */,
|
|
[ARPHRD_PHONET] = 1,
|
|
[ARPHRD_PHONET_PIPE] = 1,
|
|
[ARPHRD_CAIF] = 0,
|
|
[ARPHRD_IP6GRE] = 16 /* sizeof(struct in6_addr) */,
|
|
[ARPHRD_NETLINK] = 0,
|
|
[ARPHRD_6LOWPAN] = 8 /* EUI64_ADDR_LEN */
|
|
/* ^ or ETH_ALEN, depending on lltype */,
|
|
[ARPHRD_VSOCKMON] = 0,
|
|
};
|
|
|
|
uint16_t proto = ifr->ifr_hwaddr.sa_family;
|
|
uint8_t sz = (proto < ARRAY_SIZE(hwaddr_sizes))
|
|
? hwaddr_sizes[proto] : 255;
|
|
|
|
PRINT_FIELD_XVAL_SORTED_SIZED("ifr_hwaddr={", ifr->ifr_hwaddr,
|
|
sa_family, arp_hardware_types,
|
|
arp_hardware_types_size,
|
|
"ARPHRD_???");
|
|
PRINT_FIELD_MAC_SZ(", ", ifr->ifr_hwaddr, sa_data,
|
|
MIN(sizeof(ifr->ifr_hwaddr.sa_data), sz));
|
|
tprints("}");
|
|
break;
|
|
}
|
|
case SIOCSIFFLAGS:
|
|
case SIOCGIFFLAGS:
|
|
tprints("ifr_flags=");
|
|
printflags(iffflags, (unsigned short) ifr->ifr_flags, "IFF_???");
|
|
break;
|
|
case SIOCSIFMETRIC:
|
|
case SIOCGIFMETRIC:
|
|
tprintf("ifr_metric=%d", ifr->ifr_metric);
|
|
break;
|
|
case SIOCSIFMTU:
|
|
case SIOCGIFMTU:
|
|
tprintf("ifr_mtu=%d", ifr->ifr_mtu);
|
|
break;
|
|
case SIOCSIFSLAVE:
|
|
case SIOCGIFSLAVE:
|
|
tprints("ifr_slave=");
|
|
print_ifname(ifr->ifr_slave);
|
|
break;
|
|
case SIOCSIFTXQLEN:
|
|
case SIOCGIFTXQLEN:
|
|
tprintf("ifr_qlen=%d", ifr->ifr_qlen);
|
|
break;
|
|
case SIOCSIFMAP:
|
|
case SIOCGIFMAP:
|
|
tprintf("ifr_map={mem_start=%#" PRI_klx ", "
|
|
"mem_end=%#" PRI_klx ", base_addr=%#x, "
|
|
"irq=%u, dma=%u, port=%u}",
|
|
(kernel_ulong_t) ifr->ifr_map.mem_start,
|
|
(kernel_ulong_t) ifr->ifr_map.mem_end,
|
|
(unsigned) ifr->ifr_map.base_addr,
|
|
(unsigned) ifr->ifr_map.irq,
|
|
(unsigned) ifr->ifr_map.dma,
|
|
(unsigned) ifr->ifr_map.port);
|
|
break;
|
|
}
|
|
}
|
|
|
|
DIAG_POP_IGNORE_OVERRIDE_INIT
|
|
|
|
static unsigned int
|
|
print_ifc_len(int len)
|
|
{
|
|
const unsigned int n = (unsigned int) len / sizeof(struct_ifreq);
|
|
|
|
if (len < 0 || n * sizeof(struct_ifreq) != (unsigned int) len)
|
|
tprintf("%d", len);
|
|
else
|
|
tprintf("%u * sizeof(struct ifreq)", n);
|
|
|
|
return n;
|
|
}
|
|
|
|
static bool
|
|
print_ifconf_ifreq(struct tcb *tcp, void *elem_buf, size_t elem_size,
|
|
void *dummy)
|
|
{
|
|
struct_ifreq *ifr = elem_buf;
|
|
|
|
tprints("{ifr_name=");
|
|
print_ifname(ifr->ifr_name);
|
|
PRINT_FIELD_SOCKADDR(", ", *ifr, ifr_addr);
|
|
tprints("}");
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* There are two different modes of operation:
|
|
*
|
|
* - Get buffer size. In this case, the callee sets ifc_buf to NULL,
|
|
* and the kernel returns the buffer size in ifc_len.
|
|
* - Get actual data. In this case, the callee specifies the buffer address
|
|
* in ifc_buf and its size in ifc_len. The kernel fills the buffer with
|
|
* the data, and its amount is returned in ifc_len.
|
|
*
|
|
* Note that, technically, the whole struct ifconf is overwritten,
|
|
* so ifc_buf could be different on exit, but current ioctl handler
|
|
* implementation does not touch it.
|
|
*/
|
|
static int
|
|
decode_ifconf(struct tcb *const tcp, const kernel_ulong_t addr)
|
|
{
|
|
struct_ifconf *entering_ifc = NULL;
|
|
struct_ifconf *ifc =
|
|
entering(tcp) ? malloc(sizeof(*ifc)) : alloca(sizeof(*ifc));
|
|
|
|
if (exiting(tcp)) {
|
|
entering_ifc = get_tcb_priv_data(tcp);
|
|
|
|
if (!entering_ifc) {
|
|
error_func_msg("where is my ifconf?");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!ifc || umove(tcp, addr, ifc) < 0) {
|
|
if (entering(tcp)) {
|
|
free(ifc);
|
|
|
|
tprints(", ");
|
|
printaddr(addr);
|
|
} else {
|
|
/*
|
|
* We failed to fetch the structure on exiting syscall,
|
|
* print whatever was fetched on entering syscall.
|
|
*/
|
|
if (!entering_ifc->ifc_buf)
|
|
print_ifc_len(entering_ifc->ifc_len);
|
|
|
|
tprints(", ifc_buf=");
|
|
printaddr(ptr_to_kulong(entering_ifc->ifc_buf));
|
|
|
|
tprints("}");
|
|
}
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", {ifc_len=");
|
|
if (ifc->ifc_buf)
|
|
print_ifc_len(ifc->ifc_len);
|
|
|
|
set_tcb_priv_data(tcp, ifc, free);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* exiting */
|
|
|
|
if (entering_ifc->ifc_buf && (entering_ifc->ifc_len != ifc->ifc_len))
|
|
tprints(" => ");
|
|
if (!entering_ifc->ifc_buf || (entering_ifc->ifc_len != ifc->ifc_len))
|
|
print_ifc_len(ifc->ifc_len);
|
|
|
|
tprints(", ifc_buf=");
|
|
|
|
if (!entering_ifc->ifc_buf || syserror(tcp)) {
|
|
printaddr(ptr_to_kulong(entering_ifc->ifc_buf));
|
|
if (entering_ifc->ifc_buf != ifc->ifc_buf) {
|
|
tprints(" => ");
|
|
printaddr(ptr_to_kulong(ifc->ifc_buf));
|
|
}
|
|
} else {
|
|
struct_ifreq ifr;
|
|
|
|
print_array(tcp, ptr_to_kulong(ifc->ifc_buf),
|
|
ifc->ifc_len / sizeof(struct_ifreq),
|
|
&ifr, sizeof(ifr),
|
|
tfetch_mem, print_ifconf_ifreq, NULL);
|
|
}
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
MPERS_PRINTER_DECL(int, sock_ioctl,
|
|
struct tcb *tcp, const unsigned int code,
|
|
const kernel_ulong_t arg)
|
|
{
|
|
struct_ifreq ifr;
|
|
|
|
switch (code) {
|
|
case SIOCGIFCONF:
|
|
return decode_ifconf(tcp, arg);
|
|
|
|
#ifdef SIOCBRADDBR
|
|
case SIOCBRADDBR:
|
|
case SIOCBRDELBR:
|
|
tprints(", ");
|
|
printstr(tcp, arg);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef FIOSETOWN
|
|
case FIOSETOWN:
|
|
#endif
|
|
#ifdef SIOCSPGRP
|
|
case SIOCSPGRP:
|
|
#endif
|
|
tprints(", ");
|
|
printnum_int(tcp, arg, "%d");
|
|
break;
|
|
|
|
#ifdef FIOGETOWN
|
|
case FIOGETOWN:
|
|
#endif
|
|
#ifdef SIOCGPGRP
|
|
case SIOCGPGRP:
|
|
#endif
|
|
#ifdef SIOCATMARK
|
|
case SIOCATMARK:
|
|
#endif
|
|
if (entering(tcp))
|
|
return 0;
|
|
tprints(", ");
|
|
printnum_int(tcp, arg, "%d");
|
|
break;
|
|
|
|
#ifdef SIOCBRADDIF
|
|
case SIOCBRADDIF:
|
|
#endif
|
|
#ifdef SIOCBRDELIF
|
|
case SIOCBRDELIF:
|
|
#endif
|
|
/* no arguments */
|
|
break;
|
|
|
|
case SIOCSIFNAME:
|
|
case SIOCSIFADDR:
|
|
case SIOCSIFDSTADDR:
|
|
case SIOCSIFBRDADDR:
|
|
case SIOCSIFNETMASK:
|
|
case SIOCSIFFLAGS:
|
|
case SIOCSIFMETRIC:
|
|
case SIOCSIFMTU:
|
|
case SIOCSIFSLAVE:
|
|
case SIOCSIFHWADDR:
|
|
case SIOCSIFTXQLEN:
|
|
case SIOCSIFMAP:
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &ifr))
|
|
break;
|
|
|
|
tprints("{ifr_name=");
|
|
print_ifname(ifr.ifr_name);
|
|
tprints(", ");
|
|
if (code == SIOCSIFNAME) {
|
|
tprints("ifr_newname=");
|
|
print_ifname(ifr.ifr_newname);
|
|
} else {
|
|
print_ifreq(tcp, code, arg, &ifr);
|
|
}
|
|
tprints("}");
|
|
break;
|
|
|
|
case SIOCGIFNAME:
|
|
case SIOCGIFINDEX:
|
|
case SIOCGIFADDR:
|
|
case SIOCGIFDSTADDR:
|
|
case SIOCGIFBRDADDR:
|
|
case SIOCGIFNETMASK:
|
|
case SIOCGIFFLAGS:
|
|
case SIOCGIFMETRIC:
|
|
case SIOCGIFMTU:
|
|
case SIOCGIFSLAVE:
|
|
case SIOCGIFHWADDR:
|
|
case SIOCGIFTXQLEN:
|
|
case SIOCGIFMAP:
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
if (umove_or_printaddr(tcp, arg, &ifr))
|
|
break;
|
|
|
|
if (SIOCGIFNAME == code) {
|
|
tprintf("{ifr_index=%d", ifr.ifr_ifindex);
|
|
} else {
|
|
tprints("{ifr_name=");
|
|
print_ifname(ifr.ifr_name);
|
|
}
|
|
return 0;
|
|
} else {
|
|
if (syserror(tcp)) {
|
|
tprints("}");
|
|
break;
|
|
}
|
|
|
|
tprints(", ");
|
|
if (umove(tcp, arg, &ifr) < 0) {
|
|
tprints("???}");
|
|
break;
|
|
}
|
|
|
|
if (SIOCGIFNAME == code) {
|
|
tprints("ifr_name=");
|
|
print_ifname(ifr.ifr_name);
|
|
} else {
|
|
print_ifreq(tcp, code, arg, &ifr);
|
|
}
|
|
tprints("}");
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return RVAL_DECODED;
|
|
}
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|