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strace/sock.c
Elvira Khabirova 483c15f4be Change comparisons with function pointers to comparisons with SENs 
* pathtrace.c (pathtrace_match): Change all comparisons with function
pointers to a single SEN based switch.
* syscall.c (dumpio, trace_syscall_entering): Change all comparisons
with function pointers to comparisons with SENs.
* ipc.c (sys_ipc): Remove.
* sock.c (sys_socketcall): Likewise.
* linux/dummy.h (sys_ipc, sys_socketcall): New aliases.
2015-07-12 22:31:49 +00:00

351 lines
7.8 KiB
C
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/*
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* 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 <sys/socket.h>
#include <linux/sockios.h>
#include <arpa/inet.h>
#if defined(ALPHA) || defined(SH) || defined(SH64)
# if defined(HAVE_SYS_IOCTL_H)
# include <sys/ioctl.h>
# elif defined(HAVE_IOCTLS_H)
# include <ioctls.h>
# endif
#endif
#include <net/if.h>
#include "xlat/iffflags.h"
static void
print_ifreq_addr(struct tcb *tcp, const struct ifreq *ifr, const long addr)
{
tprintf("{");
printxval(addrfams, ifr->ifr_addr.sa_family, "AF_???");
tprints(", ");
if (ifr->ifr_addr.sa_family == AF_INET) {
const struct sockaddr_in *sinp =
(struct sockaddr_in *) &ifr->ifr_addr;
tprintf("inet_addr(\"%s\")", inet_ntoa(sinp->sin_addr));
} else
printstr(tcp, addr + offsetof(struct ifreq, ifr_addr.sa_data),
sizeof(ifr->ifr_addr.sa_data));
tprints("}");
}
static void
print_ifname(const char *ifname)
{
print_quoted_string(ifname, IFNAMSIZ + 1, QUOTE_0_TERMINATED);
}
static void
print_ifreq(struct tcb *tcp, const unsigned int code, const long arg,
const struct ifreq *ifr)
{
switch (code) {
case SIOCSIFADDR:
case SIOCGIFADDR:
tprints("ifr_addr=");
print_ifreq_addr(tcp, ifr, arg);
break;
case SIOCSIFDSTADDR:
case SIOCGIFDSTADDR:
tprints("ifr_dstaddr=");
print_ifreq_addr(tcp, ifr, arg);
break;
case SIOCSIFBRDADDR:
case SIOCGIFBRDADDR:
tprints("ifr_broadaddr=");
print_ifreq_addr(tcp, ifr, arg);
break;
case SIOCSIFNETMASK:
case SIOCGIFNETMASK:
tprints("ifr_netmask=");
print_ifreq_addr(tcp, ifr, arg);
break;
case SIOCSIFHWADDR:
case SIOCGIFHWADDR: {
/* XXX Are there other hardware addresses
than 6-byte MACs? */
const unsigned char *bytes =
(unsigned char *) &ifr->ifr_hwaddr.sa_data;
tprintf("ifr_hwaddr=%02x:%02x:%02x:%02x:%02x:%02x",
bytes[0], bytes[1], bytes[2],
bytes[3], bytes[4], bytes[5]);
break;
}
case SIOCSIFFLAGS:
case SIOCGIFFLAGS:
tprints("ifr_flags=");
printflags(iffflags, 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=%#lx, "
"mem_end=%#lx, base_addr=%#x, "
"irq=%u, dma=%u, port=%u}",
ifr->ifr_map.mem_start,
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;
}
}
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 int
decode_ifconf(struct tcb *tcp, const long addr)
{
struct ifconf ifc;
if (entering(tcp)) {
tprints(", ");
if (umove_or_printaddr(tcp, addr, &ifc))
return RVAL_DECODED | 1;
if (ifc.ifc_buf) {
tprints("{");
print_ifc_len(ifc.ifc_len);
}
return 1;
}
if (syserror(tcp) || umove(tcp, addr, &ifc) < 0) {
if (ifc.ifc_buf)
tprints("}");
else
printaddr(addr);
return RVAL_DECODED | 1;
}
if (!ifc.ifc_buf) {
tprints("{");
print_ifc_len(ifc.ifc_len);
tprints(", NULL}");
return RVAL_DECODED | 1;
}
tprints(" => ");
const unsigned int nifra = print_ifc_len(ifc.ifc_len);
if (!nifra) {
tprints("}");
return RVAL_DECODED | 1;
}
struct ifreq ifra[nifra > max_strlen ? max_strlen : nifra];
tprints(", ");
if (umove_or_printaddr(tcp, (unsigned long) ifc.ifc_buf, &ifra)) {
tprints("}");
return RVAL_DECODED | 1;
}
tprints("[");
unsigned int i;
for (i = 0; i < ARRAY_SIZE(ifra); ++i) {
if (i > 0)
tprints(", ");
tprints("{ifr_name=");
print_ifname(ifra[i].ifr_name);
tprints(", ");
if (verbose(tcp)) {
tprints("ifr_addr=");
print_ifreq_addr(tcp, &ifra[i],
addr + i * sizeof(ifra[0]));
} else
tprints("...");
tprints("}");
}
if (i < nifra)
tprints(", ...");
tprints("]}");
return RVAL_DECODED | 1;
}
int
sock_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
{
struct ifreq ifr;
switch (code) {
case SIOCGIFCONF:
return decode_ifconf(tcp, arg);
#ifdef SIOCBRADDBR
case SIOCBRADDBR:
case SIOCBRDELBR:
tprints(", ");
printstr(tcp, arg, -1);
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 1;
} 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_DECODED | 1;
}
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