strace/sock.c

/*
 * 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.
 *
 *	$Id$
 */

#include "defs.h"

#ifdef LINUX
#include <sys/socket.h>
#include <linux/sockios.h>
#else
#include <sys/socket.h>
#include <sys/sockio.h>
#endif
#include <arpa/inet.h>

#if defined (ALPHA) || defined(SH) || defined(SH64)
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#elif defined(HAVE_IOCTLS_H)
#include <ioctls.h>
#endif
#endif
#include <net/if.h>

extern const struct xlat addrfams[];

static const struct xlat iffflags[] = {
	{ IFF_UP,		"IFF_UP"		},
	{ IFF_BROADCAST,	"IFF_BROADCAST"		},
	{ IFF_DEBUG,		"IFF_DEBUG"		},
	{ IFF_LOOPBACK,		"IFF_LOOPBACK"		},
	{ IFF_POINTOPOINT,	"IFF_POINTOPOINT"	},
	{ IFF_NOTRAILERS,	"IFF_NOTRAILERS"	},
	{ IFF_RUNNING,		"IFF_RUNNING"		},
	{ IFF_NOARP,		"IFF_NOARP"		},
	{ IFF_PROMISC,		"IFF_PROMISC"		},
	{ IFF_ALLMULTI,		"IFF_ALLMULTI"		},
	{ IFF_MASTER,		"IFF_MASTER"		},
	{ IFF_SLAVE,		"IFF_SLAVE"		},
	{ IFF_MULTICAST,	"IFF_MULTICAST"		},
	{ IFF_PORTSEL,		"IFF_PORTSEL"		},
	{ IFF_AUTOMEDIA,	"IFF_AUTOMEDIA"		},
	{ 0,			NULL			}
};


static void
print_addr(tcp, addr, ifr)
struct tcb *tcp;
long addr;
struct ifreq *ifr;
{
	if (ifr->ifr_addr.sa_family == AF_INET) {
		struct sockaddr_in *sinp;
		sinp = (struct sockaddr_in *) &ifr->ifr_addr;
		tprintf("inet_addr(\"%s\")", inet_ntoa(sinp->sin_addr));
	} else
		printstr(tcp, addr, sizeof(ifr->ifr_addr.sa_data));
}

int
sock_ioctl(tcp, code, arg)
struct tcb *tcp;
long code, arg;
{
	struct ifreq ifr;
	struct ifconf ifc;
	const char *str = NULL;
	unsigned char *bytes;

	if (entering(tcp)) {
		if (code == SIOCGIFCONF) {
			umove(tcp, tcp->u_arg[2], &ifc);
			if (ifc.ifc_buf == NULL)
				tprintf(", {%d -> ", ifc.ifc_len);
			else
				tprintf(", {");
		}
		return 0;
	}

	switch (code) {
#ifdef SIOCSHIWAT
	case SIOCSHIWAT:
#endif
#ifdef SIOCGHIWAT
	case SIOCGHIWAT:
#endif
#ifdef SIOCSLOWAT
	case SIOCSLOWAT:
#endif
#ifdef SIOCGLOWAT
	case SIOCGLOWAT:
#endif
#ifdef FIOSETOWN
	case FIOSETOWN:
#endif
#ifdef FIOGETOWN
	case FIOGETOWN:
#endif
#ifdef SIOCSPGRP
	case SIOCSPGRP:
#endif
#ifdef SIOCGPGRP
	case SIOCGPGRP:
#endif
#ifdef SIOCATMARK
	case SIOCATMARK:
#endif
		printnum(tcp, arg, ", %#d");
		return 1;
#ifdef LINUX
	case SIOCGIFNAME:
	case SIOCGIFINDEX:
	case SIOCGIFADDR:
	case SIOCGIFDSTADDR:
	case SIOCGIFBRDADDR:
	case SIOCGIFNETMASK:
	case SIOCGIFFLAGS:
	case SIOCGIFMETRIC:
	case SIOCGIFMTU:
	case SIOCGIFSLAVE:
	case SIOCGIFHWADDR:
		umove(tcp, tcp->u_arg[2], &ifr);
                if (syserror(tcp)) {
			if (code == SIOCGIFNAME)
				tprintf(", {ifr_index=%d, ifr_name=???}", ifr.ifr_ifindex);
			else
				tprintf(", {ifr_name=\"%s\", ???}", ifr.ifr_name);
		} else if (code == SIOCGIFNAME)
			tprintf(", {ifr_index=%d, ifr_name=\"%s\"}",
				ifr.ifr_ifindex, ifr.ifr_name);
		else {
			tprintf(", {ifr_name=\"%s\", ", ifr.ifr_name);
			switch (code) {
			case SIOCGIFINDEX:
				tprintf("ifr_index=%d", ifr.ifr_ifindex);
				break;
			case SIOCGIFADDR:
				str = "ifr_addr";
			case SIOCGIFDSTADDR:
				if (str == NULL)
					str = "ifr_dstaddr";
			case SIOCGIFBRDADDR:
				if (str == NULL)
					str = "ifr_broadaddr";
			case SIOCGIFNETMASK:
				if (str == NULL)
					str = "ifr_netmask";
				tprintf("%s={", str);
				printxval(addrfams,
					  ifr.ifr_addr.sa_family,
                    			  "AF_???");
				tprintf(", ");
				print_addr(tcp, ((long) tcp->u_arg[2]
						 + offsetof (struct ifreq,
							     ifr_addr.sa_data)),
					   &ifr);
				tprintf("}");
				break;
			case SIOCGIFHWADDR:
				/* XXX Are there other hardware addresses
				   than 6-byte MACs?  */
				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 SIOCGIFFLAGS:
				tprintf("ifr_flags=");
				printflags(iffflags, ifr.ifr_flags, "IFF_???");
				break;
			case SIOCGIFMETRIC:
				tprintf("ifr_metric=%d", ifr.ifr_metric);
				break;
			case SIOCGIFMTU:
				tprintf("ifr_mtu=%d", ifr.ifr_mtu);
				break;
			case SIOCGIFSLAVE:
				tprintf("ifr_slave=\"%s\"", ifr.ifr_slave);
				break;
			}
			tprintf("}");
		}
		return 1;
	case SIOCGIFCONF:
		umove(tcp, tcp->u_arg[2], &ifc);
		tprintf("%d, ", ifc.ifc_len);
                if (syserror(tcp)) {
			tprintf("%lx", (unsigned long) ifc.ifc_buf);
		} else if (ifc.ifc_buf == NULL) {
			tprintf("NULL");
		} else {
			int i;
			unsigned nifra = ifc.ifc_len / sizeof(struct ifreq);
			struct ifreq ifra[nifra];
			umoven(tcp, (unsigned long) ifc.ifc_buf, sizeof(ifra),
			       (char *) ifra);
			tprintf("{");
			for (i = 0; i < nifra; ++i ) {
				if (i > 0)
					tprintf(", ");
				tprintf("{\"%s\", {",
					ifra[i].ifr_name);
				if (verbose(tcp)) {
					printxval(addrfams,
						  ifra[i].ifr_addr.sa_family,
						  "AF_???");
					tprintf(", ");
					print_addr(tcp, ((long) tcp->u_arg[2]
							 + offsetof (struct ifreq,
								     ifr_addr.sa_data)
							 + ((char *) &ifra[i]
							    - (char *) &ifra[0])),
						   &ifra[i]);
				} else
					tprintf("...");
				tprintf("}}");
			}
			tprintf("}");
		}
		tprintf("}");
		return 1;
#endif
	default:
		return 0;
	}
}