307 lines
8.9 KiB
C
307 lines
8.9 KiB
C
/*
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* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
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* Copyright (c) 1996-2000 Wichert Akkerman <wichert@cistron.nl>
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* Copyright (c) 2005-2016 Dmitry V. Levin <ldv@altlinux.org>
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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 <sys/socket.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <linux/netlink.h>
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#include <linux/if_packet.h>
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#include <linux/if_arp.h>
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#include <linux/if_ether.h>
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#ifdef HAVE_NETIPX_IPX_H
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# include <netipx/ipx.h>
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#else
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# include <linux/ipx.h>
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#endif
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#include "xlat/addrfams.h"
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#include "xlat/arp_hardware_types.h"
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#include "xlat/ethernet_protocols.h"
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#include "xlat/af_packet_types.h"
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#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
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# include <bluetooth/bluetooth.h>
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# include <bluetooth/hci.h>
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# include <bluetooth/l2cap.h>
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# include <bluetooth/rfcomm.h>
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# include <bluetooth/sco.h>
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# include "xlat/hci_channels.h"
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#endif
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#define SIZEOF_SA_FAMILY sizeof(((struct sockaddr *) 0)->sa_family)
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static void
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print_sockaddr_data_un(const void *const buf, const int addrlen)
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{
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const struct sockaddr_un *const sa_un = buf;
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const int un_len = addrlen > (int) sizeof(*sa_un)
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? (int) sizeof(*sa_un) : addrlen;
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const int path_len = un_len - SIZEOF_SA_FAMILY;
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tprints("sun_path=");
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if (sa_un->sun_path[0]) {
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print_quoted_string(sa_un->sun_path, path_len + 1,
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QUOTE_0_TERMINATED);
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} else {
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tprints("@");
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print_quoted_string(sa_un->sun_path + 1, path_len - 1, 0);
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}
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}
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static void
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print_sockaddr_data_in(const void *const buf, const int addrlen)
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{
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const struct sockaddr_in *const sa_in = buf;
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tprintf("sin_port=htons(%u), sin_addr=inet_addr(\"%s\")",
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ntohs(sa_in->sin_port), inet_ntoa(sa_in->sin_addr));
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}
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#define SIN6_MIN_LEN offsetof(struct sockaddr_in6, sin6_scope_id)
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static void
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print_sockaddr_data_in6(const void *const buf, const int addrlen)
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{
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const struct sockaddr_in6 *const sa_in6 = buf;
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char string_addr[100];
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inet_ntop(AF_INET6, &sa_in6->sin6_addr,
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string_addr, sizeof(string_addr));
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tprintf("sin6_port=htons(%u), inet_pton(AF_INET6"
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", \"%s\", &sin6_addr), sin6_flowinfo=htonl(%u)",
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ntohs(sa_in6->sin6_port), string_addr,
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ntohl(sa_in6->sin6_flowinfo));
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if (addrlen <= (int) SIN6_MIN_LEN)
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return;
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tprints(", sin6_scope_id=");
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#if defined IN6_IS_ADDR_LINKLOCAL && defined IN6_IS_ADDR_MC_LINKLOCAL
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if (IN6_IS_ADDR_LINKLOCAL(&sa_in6->sin6_addr)
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|| IN6_IS_ADDR_MC_LINKLOCAL(&sa_in6->sin6_addr))
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print_ifindex(sa_in6->sin6_scope_id);
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else
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#endif
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tprintf("%u", sa_in6->sin6_scope_id);
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}
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static void
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print_sockaddr_data_ipx(const void *const buf, const int addrlen)
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{
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const struct sockaddr_ipx *const sa_ipx = buf;
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unsigned int i;
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tprintf("sipx_port=htons(%u)"
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", sipx_network=htonl(%#08x)"
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", sipx_node=[",
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ntohs(sa_ipx->sipx_port),
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ntohl(sa_ipx->sipx_network));
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for (i = 0; i < IPX_NODE_LEN; ++i) {
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tprintf("%s%#02x", i ? ", " : "",
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sa_ipx->sipx_node[i]);
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}
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tprintf("], sipx_type=%#02x", sa_ipx->sipx_type);
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}
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static void
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print_sockaddr_data_nl(const void *const buf, const int addrlen)
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{
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const struct sockaddr_nl *const sa_nl = buf;
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tprintf("nl_pid=%d, nl_groups=%#08x",
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sa_nl->nl_pid, sa_nl->nl_groups);
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}
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static void
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print_sockaddr_data_ll(const void *const buf, const int addrlen)
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{
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const struct sockaddr_ll *const sa_ll = buf;
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tprints("sll_protocol=htons(");
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printxval(ethernet_protocols, ntohs(sa_ll->sll_protocol), "ETH_P_???");
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tprints("), sll_ifindex=");
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print_ifindex(sa_ll->sll_ifindex);
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tprints(", sll_hatype=");
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printxval(arp_hardware_types, sa_ll->sll_hatype, "ARPHRD_???");
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tprints(", sll_pkttype=");
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printxval(af_packet_types, sa_ll->sll_pkttype, "PACKET_???");
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tprintf(", sll_halen=%u", sa_ll->sll_halen);
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if (sa_ll->sll_halen) {
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const unsigned int oob_halen =
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addrlen - offsetof(struct sockaddr_ll, sll_addr);
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unsigned int i;
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tprints(", sll_addr=[");
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for (i = 0; i < sa_ll->sll_halen; ++i) {
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if (i)
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tprints(", ");
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if (i >= oob_halen) {
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tprints("...");
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break;
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}
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tprintf("%#02x", sa_ll->sll_addr[i]);
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}
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tprints("]");
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}
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}
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static void
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print_sockaddr_data_raw(const void *const buf, const int addrlen)
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{
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const char *const data = buf + SIZEOF_SA_FAMILY;
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const int datalen = addrlen - SIZEOF_SA_FAMILY;
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tprints("sa_data=");
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print_quoted_string(data, datalen, 0);
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}
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#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
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static void
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print_sockaddr_data_bt(const void *const buf, const int addrlen)
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{
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switch (addrlen) {
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case sizeof(struct sockaddr_hci): {
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const struct sockaddr_hci *const hci = buf;
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tprintf("hci_dev=htobs(%hu), hci_channel=",
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btohs(hci->hci_dev));
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printxval(hci_channels, hci->hci_channel,
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"HCI_CHANNEL_???");
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break;
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}
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case sizeof(struct sockaddr_sco): {
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const struct sockaddr_sco *const sco = buf;
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tprintf("sco_bdaddr=%02x:%02x:%02x:%02x:%02x:%02x",
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sco->sco_bdaddr.b[0], sco->sco_bdaddr.b[1],
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sco->sco_bdaddr.b[2], sco->sco_bdaddr.b[3],
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sco->sco_bdaddr.b[4], sco->sco_bdaddr.b[5]);
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break;
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}
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case sizeof(struct sockaddr_rc): {
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const struct sockaddr_rc *const rc = buf;
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tprintf("rc_bdaddr=%02x:%02x:%02x:%02x:%02x:%02x"
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", rc_channel=%u",
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rc->rc_bdaddr.b[0], rc->rc_bdaddr.b[1],
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rc->rc_bdaddr.b[2], rc->rc_bdaddr.b[3],
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rc->rc_bdaddr.b[4], rc->rc_bdaddr.b[5],
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rc->rc_channel);
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break;
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}
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case sizeof(struct sockaddr_l2): {
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const struct sockaddr_l2 *const l2 = buf;
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tprintf("l2_psm=htobs(%hu)"
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", l2_bdaddr=%02x:%02x:%02x:%02x:%02x:%02x"
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", l2_cid=htobs(%hu), l2_bdaddr_type=%u",
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btohs(l2->l2_psm),
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l2->l2_bdaddr.b[0], l2->l2_bdaddr.b[1],
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l2->l2_bdaddr.b[2], l2->l2_bdaddr.b[3],
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l2->l2_bdaddr.b[4], l2->l2_bdaddr.b[5],
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btohs(l2->l2_cid), l2->l2_bdaddr_type);
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break;
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}
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default:
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print_sockaddr_data_raw(buf, addrlen);
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break;
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}
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}
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#endif /* HAVE_BLUETOOTH_BLUETOOTH_H */
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typedef void (* const sockaddr_printer)(const void *const, const int);
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static const struct {
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const sockaddr_printer printer;
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const int min_len;
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} sa_printers[] = {
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[AF_UNIX] = { print_sockaddr_data_un, SIZEOF_SA_FAMILY + 1 },
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[AF_INET] = { print_sockaddr_data_in, sizeof(struct sockaddr_in) },
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[AF_IPX] = { print_sockaddr_data_ipx, sizeof(struct sockaddr_ipx) },
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[AF_INET6] = { print_sockaddr_data_in6, SIN6_MIN_LEN },
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[AF_NETLINK] = { print_sockaddr_data_nl, SIZEOF_SA_FAMILY + 1 },
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[AF_PACKET] = { print_sockaddr_data_ll, sizeof(struct sockaddr_ll) },
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#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
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[AF_BLUETOOTH] = { print_sockaddr_data_bt, SIZEOF_SA_FAMILY + 1 },
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#endif
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};
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void
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print_sockaddr(struct tcb *tcp, const void *const buf, const int addrlen)
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{
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const struct sockaddr *const sa = buf;
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tprints("{sa_family=");
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printxval(addrfams, sa->sa_family, "AF_???");
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if (addrlen > (int) SIZEOF_SA_FAMILY) {
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tprints(", ");
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if (sa->sa_family < ARRAY_SIZE(sa_printers)
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&& sa_printers[sa->sa_family].printer
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&& addrlen >= sa_printers[sa->sa_family].min_len) {
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sa_printers[sa->sa_family].printer(buf, addrlen);
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} else {
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print_sockaddr_data_raw(buf, addrlen);
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}
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}
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tprints("}");
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}
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int
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decode_sockaddr(struct tcb *const tcp, const kernel_ulong_t addr, int addrlen)
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{
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if (addrlen < 2) {
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printaddr(addr);
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return -1;
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}
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union {
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struct sockaddr sa;
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struct sockaddr_storage storage;
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char pad[sizeof(struct sockaddr_storage) + 1];
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} addrbuf;
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if ((unsigned) addrlen > sizeof(addrbuf.storage))
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addrlen = sizeof(addrbuf.storage);
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if (umoven_or_printaddr(tcp, addr, addrlen, addrbuf.pad))
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return -1;
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memset(&addrbuf.pad[addrlen], 0, sizeof(addrbuf.pad) - addrlen);
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print_sockaddr(tcp, &addrbuf, addrlen);
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return addrbuf.sa.sa_family;
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}
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