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net.c
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/*
* Copyright (c) 1991, 1992 Paul Kranenburg <[email protected]>
* Copyright (c) 1993 Branko Lankester <[email protected]>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <[email protected]>
* Copyright (c) 1996-2000 Wichert Akkerman <[email protected]>
* 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/stat.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/un.h>
#include <netinet/in.h>
#ifdef HAVE_NETINET_TCP_H
# include <netinet/tcp.h>
#endif
#ifdef HAVE_NETINET_UDP_H
# include <netinet/udp.h>
#endif
#ifdef HAVE_NETINET_SCTP_H
# include <netinet/sctp.h>
#endif
#include <arpa/inet.h>
#include <net/if.h>
#include <asm/types.h>
#if defined(__GLIBC__)
# include <netipx/ipx.h>
#else
# include <linux/ipx.h>
#endif
#if defined(HAVE_LINUX_NETLINK_H)
# include <linux/netlink.h>
#endif
#if defined(HAVE_LINUX_IF_PACKET_H)
# include <linux/if_packet.h>
#endif
#if defined(HAVE_LINUX_ICMP_H)
# include <linux/icmp.h>
#endif
#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
# include <bluetooth/bluetooth.h>
# include <bluetooth/hci.h>
# include <bluetooth/l2cap.h>
# include <bluetooth/rfcomm.h>
# include <bluetooth/sco.h>
#endif
#ifndef PF_UNSPEC
# define PF_UNSPEC AF_UNSPEC
#endif
#include "xlat/domains.h"
#include "xlat/addrfams.h"
#include "xlat/socktypes.h"
#include "xlat/sock_type_flags.h"
#ifndef SOCK_TYPE_MASK
# define SOCK_TYPE_MASK 0xf
#endif
#ifndef SOL_IP
# define SOL_IP 0
#endif
#ifndef SOL_TCP
# define SOL_TCP 6
#endif
#ifndef SOL_UDP
# define SOL_UDP 17
#endif
#ifndef SOL_IPV6
# define SOL_IPV6 41
#endif
#ifndef SOL_ICMPV6
# define SOL_ICMPV6 58
#endif
#ifndef SOL_SCTP
# define SOL_SCTP 132
#endif
#ifndef SOL_UDPLITE
# define SOL_UDPLITE 136
#endif
#ifndef SOL_RAW
# define SOL_RAW 255
#endif
#ifndef SOL_IPX
# define SOL_IPX 256
#endif
#ifndef SOL_AX25
# define SOL_AX25 257
#endif
#ifndef SOL_ATALK
# define SOL_ATALK 258
#endif
#ifndef SOL_NETROM
# define SOL_NETROM 259
#endif
#ifndef SOL_ROSE
# define SOL_ROSE 260
#endif
#ifndef SOL_DECNET
# define SOL_DECNET 261
#endif
#ifndef SOL_X25
# define SOL_X25 262
#endif
#ifndef SOL_PACKET
# define SOL_PACKET 263
#endif
#ifndef SOL_ATM
# define SOL_ATM 264
#endif
#ifndef SOL_AAL
# define SOL_AAL 265
#endif
#ifndef SOL_IRDA
# define SOL_IRDA 266
#endif
#ifndef SOL_NETBEUI
# define SOL_NETBEUI 267
#endif
#ifndef SOL_LLC
# define SOL_LLC 268
#endif
#ifndef SOL_DCCP
# define SOL_DCCP 269
#endif
#ifndef SOL_NETLINK
# define SOL_NETLINK 270
#endif
#ifndef SOL_TIPC
# define SOL_TIPC 271
#endif
#ifndef SOL_RXRPC
# define SOL_RXRPC 272
#endif
#ifndef SOL_PPPOL2TP
# define SOL_PPPOL2TP 273
#endif
#ifndef SOL_BLUETOOTH
# define SOL_BLUETOOTH 274
#endif
#ifndef SOL_PNPIPE
# define SOL_PNPIPE 275
#endif
#ifndef SOL_RDS
# define SOL_RDS 276
#endif
#ifndef SOL_IUCV
# define SOL_IUCV 277
#endif
#ifndef SOL_CAIF
# define SOL_CAIF 278
#endif
#ifndef SOL_ALG
# define SOL_ALG 279
#endif
#ifndef SOL_NFC
# define SOL_NFC 280
#endif
#include "xlat/socketlayers.h"
#include "xlat/inet_protocols.h"
#ifdef PF_NETLINK
# if !defined NETLINK_SOCK_DIAG && defined NETLINK_INET_DIAG
# define NETLINK_SOCK_DIAG NETLINK_INET_DIAG
# endif
# include "xlat/netlink_protocols.h"
#endif
#if defined(HAVE_BLUETOOTH_BLUETOOTH_H)
# include "xlat/bt_protocols.h"
#endif
#include "xlat/msg_flags.h"
#if defined(AF_PACKET) /* from e.g. linux/if_packet.h */
# include "xlat/af_packet_types.h"
#endif
void
printsock(struct tcb *tcp, long addr, int addrlen)
{
union {
char pad[128];
struct sockaddr sa;
struct sockaddr_in sin;
struct sockaddr_un sau;
#ifdef HAVE_INET_NTOP
struct sockaddr_in6 sa6;
#endif
#if defined(AF_IPX)
struct sockaddr_ipx sipx;
#endif
#ifdef AF_PACKET
struct sockaddr_ll ll;
#endif
#ifdef AF_NETLINK
struct sockaddr_nl nl;
#endif
#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
struct sockaddr_hci hci;
struct sockaddr_l2 l2;
struct sockaddr_rc rc;
struct sockaddr_sco sco;
#endif
} addrbuf;
char string_addr[100];
if (addr == 0) {
tprints("NULL");
return;
}
if (!verbose(tcp)) {
tprintf("%#lx", addr);
return;
}
if (addrlen < 2 || addrlen > (int) sizeof(addrbuf))
addrlen = sizeof(addrbuf);
memset(&addrbuf, 0, sizeof(addrbuf));
if (umoven(tcp, addr, addrlen, addrbuf.pad) < 0) {
tprints("{...}");
return;
}
addrbuf.pad[sizeof(addrbuf.pad) - 1] = '\0';
tprints("{sa_family=");
printxval(addrfams, addrbuf.sa.sa_family, "AF_???");
tprints(", ");
switch (addrbuf.sa.sa_family) {
case AF_UNIX:
if (addrlen == 2) {
tprints("NULL");
} else if (addrbuf.sau.sun_path[0]) {
tprints("sun_path=");
print_quoted_string(addrbuf.sau.sun_path,
sizeof(addrbuf.sau.sun_path) + 1,
QUOTE_0_TERMINATED);
} else {
tprints("sun_path=@");
print_quoted_string(addrbuf.sau.sun_path + 1,
sizeof(addrbuf.sau.sun_path),
QUOTE_0_TERMINATED);
}
break;
case AF_INET:
tprintf("sin_port=htons(%u), sin_addr=inet_addr(\"%s\")",
ntohs(addrbuf.sin.sin_port), inet_ntoa(addrbuf.sin.sin_addr));
break;
#ifdef HAVE_INET_NTOP
case AF_INET6:
inet_ntop(AF_INET6, &addrbuf.sa6.sin6_addr, string_addr, sizeof(string_addr));
tprintf("sin6_port=htons(%u), inet_pton(AF_INET6, \"%s\", &sin6_addr), sin6_flowinfo=%u",
ntohs(addrbuf.sa6.sin6_port), string_addr,
addrbuf.sa6.sin6_flowinfo);
#ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
{
#if defined(HAVE_IF_INDEXTONAME) && defined(IN6_IS_ADDR_LINKLOCAL) && defined(IN6_IS_ADDR_MC_LINKLOCAL)
int numericscope = 0;
if (IN6_IS_ADDR_LINKLOCAL(&addrbuf.sa6.sin6_addr)
|| IN6_IS_ADDR_MC_LINKLOCAL(&addrbuf.sa6.sin6_addr)) {
char scopebuf[IFNAMSIZ + 1];
if (if_indextoname(addrbuf.sa6.sin6_scope_id, scopebuf) == NULL)
numericscope++;
else {
tprints(", sin6_scope_id=if_nametoindex(");
print_quoted_string(scopebuf,
sizeof(scopebuf),
QUOTE_0_TERMINATED);
tprints(")");
}
} else
numericscope++;
if (numericscope)
#endif
tprintf(", sin6_scope_id=%u", addrbuf.sa6.sin6_scope_id);
}
#endif
break;
#endif
#if defined(AF_IPX)
case AF_IPX:
{
int i;
tprintf("sipx_port=htons(%u), ",
ntohs(addrbuf.sipx.sipx_port));
/* Yes, I know, this does not look too
* strace-ish, but otherwise the IPX
* addresses just look monstrous...
* Anyways, feel free if you don't like
* this way.. :)
*/
tprintf("%08lx:", (unsigned long)ntohl(addrbuf.sipx.sipx_network));
for (i = 0; i < IPX_NODE_LEN; i++)
tprintf("%02x", addrbuf.sipx.sipx_node[i]);
tprintf("/[%02x]", addrbuf.sipx.sipx_type);
}
break;
#endif /* AF_IPX */
#ifdef AF_PACKET
case AF_PACKET:
{
int i;
tprintf("proto=%#04x, if%d, pkttype=",
ntohs(addrbuf.ll.sll_protocol),
addrbuf.ll.sll_ifindex);
printxval(af_packet_types, addrbuf.ll.sll_pkttype, "PACKET_???");
tprintf(", addr(%d)={%d, ",
addrbuf.ll.sll_halen,
addrbuf.ll.sll_hatype);
for (i = 0; i < addrbuf.ll.sll_halen; i++)
tprintf("%02x", addrbuf.ll.sll_addr[i]);
}
break;
#endif /* AF_PACKET */
#ifdef AF_NETLINK
case AF_NETLINK:
tprintf("pid=%d, groups=%08x", addrbuf.nl.nl_pid, addrbuf.nl.nl_groups);
break;
#endif /* AF_NETLINK */
#if defined(AF_BLUETOOTH) && defined(HAVE_BLUETOOTH_BLUETOOTH_H)
case AF_BLUETOOTH:
tprintf("{sco_bdaddr=%02X:%02X:%02X:%02X:%02X:%02X} or "
"{rc_bdaddr=%02X:%02X:%02X:%02X:%02X:%02X, rc_channel=%d} or "
"{l2_psm=htobs(%d), l2_bdaddr=%02X:%02X:%02X:%02X:%02X:%02X, l2_cid=htobs(%d)} or "
"{hci_dev=htobs(%d)}",
addrbuf.sco.sco_bdaddr.b[0], addrbuf.sco.sco_bdaddr.b[1],
addrbuf.sco.sco_bdaddr.b[2], addrbuf.sco.sco_bdaddr.b[3],
addrbuf.sco.sco_bdaddr.b[4], addrbuf.sco.sco_bdaddr.b[5],
addrbuf.rc.rc_bdaddr.b[0], addrbuf.rc.rc_bdaddr.b[1],
addrbuf.rc.rc_bdaddr.b[2], addrbuf.rc.rc_bdaddr.b[3],
addrbuf.rc.rc_bdaddr.b[4], addrbuf.rc.rc_bdaddr.b[5],
addrbuf.rc.rc_channel,
btohs(addrbuf.l2.l2_psm), addrbuf.l2.l2_bdaddr.b[0],
addrbuf.l2.l2_bdaddr.b[1], addrbuf.l2.l2_bdaddr.b[2],
addrbuf.l2.l2_bdaddr.b[3], addrbuf.l2.l2_bdaddr.b[4],
addrbuf.l2.l2_bdaddr.b[5], btohs(addrbuf.l2.l2_cid),
btohs(addrbuf.hci.hci_dev));
break;
#endif /* AF_BLUETOOTH && HAVE_BLUETOOTH_BLUETOOTH_H */
/* AF_AX25 AF_APPLETALK AF_NETROM AF_BRIDGE AF_AAL5
AF_X25 AF_ROSE etc. still need to be done */
default:
tprints("sa_data=");
print_quoted_string(addrbuf.sa.sa_data,
sizeof(addrbuf.sa.sa_data), 0);
break;
}
tprints("}");
}
#if HAVE_SENDMSG
# ifndef SCM_SECURITY
# define SCM_SECURITY 0x03
# endif
# include "xlat/scmvals.h"
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
struct cmsghdr32 {
uint32_t cmsg_len;
int cmsg_level;
int cmsg_type;
};
#endif
typedef union {
char *ptr;
struct cmsghdr *cmsg;
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
struct cmsghdr32 *cmsg32;
#endif
} union_cmsghdr;
static bool
print_scm_rights(struct tcb *tcp, size_t cmsg_size, char *ptr, size_t cmsg_len)
{
if (cmsg_size + sizeof(int) > cmsg_len)
return false;
int *fds = (int *) (ptr + cmsg_size);
bool seen = false;
tprints(", [");
while ((char *) fds < (ptr + cmsg_len)) {
if (seen)
tprints(", ");
else
seen = true;
printfd(tcp, *fds++);
}
tprints("]}");
return true;
}
static bool
print_scm_creds(struct tcb *tcp, size_t cmsg_size, char *ptr, size_t cmsg_len)
{
if (cmsg_size + sizeof(struct ucred) > cmsg_len)
return false;
const struct ucred *uc = (void *) (ptr + cmsg_size);
tprintf(", {pid=%u, uid=%u, gid=%u}}",
(unsigned) uc->pid, (unsigned) uc->uid, (unsigned) uc->gid);
return true;
}
static bool
print_scm_security(struct tcb *tcp, size_t cmsg_size, char *ptr, size_t cmsg_len)
{
if (cmsg_size + sizeof(char) > cmsg_len)
return false;
const char *label = (const char *) (ptr + cmsg_size);
const size_t label_len = cmsg_len - cmsg_size;
tprints(", ");
print_quoted_string(label, label_len, 0);
tprints("}");
return true;
}
static void
printcmsghdr(struct tcb *tcp, unsigned long addr, size_t len)
{
const size_t cmsg_size =
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
(current_wordsize < sizeof(long)) ? sizeof(struct cmsghdr32) :
#endif
sizeof(struct cmsghdr);
char *buf = len < cmsg_size ? NULL : malloc(len);
if (!buf || umoven(tcp, addr, len, buf) < 0) {
tprintf(", msg_control=%#lx", addr);
free(buf);
return;
}
union_cmsghdr u = { .ptr = buf };
tprints(", [");
while (len >= cmsg_size) {
size_t cmsg_len =
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
(current_wordsize < sizeof(long)) ? u.cmsg32->cmsg_len :
#endif
u.cmsg->cmsg_len;
int cmsg_level =
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
(current_wordsize < sizeof(long)) ? u.cmsg32->cmsg_level :
#endif
u.cmsg->cmsg_level;
int cmsg_type =
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
(current_wordsize < sizeof(long)) ? u.cmsg32->cmsg_type :
#endif
u.cmsg->cmsg_type;
if (u.ptr != buf)
tprints(", ");
tprintf("{cmsg_len=%lu, cmsg_level=", (unsigned long) cmsg_len);
printxval(socketlayers, cmsg_level, "SOL_???");
tprints(", cmsg_type=");
if (cmsg_len > len)
cmsg_len = len;
if (cmsg_level == SOL_SOCKET) {
printxval(scmvals, cmsg_type, "SCM_???");
switch (cmsg_type) {
case SCM_RIGHTS:
if (print_scm_rights(tcp, cmsg_size, u.ptr, cmsg_len))
goto next_cmsg;
break;
case SCM_CREDENTIALS:
if (print_scm_creds(tcp, cmsg_size, u.ptr, cmsg_len))
goto next_cmsg;
break;
case SCM_SECURITY:
if (print_scm_security(tcp, cmsg_size, u.ptr, cmsg_len))
goto next_cmsg;
break;
}
} else {
tprintf("%u", cmsg_type);
}
tprints(", ...}");
next_cmsg:
if (cmsg_len < cmsg_size) {
len -= cmsg_size;
break;
}
cmsg_len = (cmsg_len + current_wordsize - 1) &
(size_t) ~(current_wordsize - 1);
if (cmsg_len >= len) {
len = 0;
break;
}
u.ptr += cmsg_len;
len -= cmsg_len;
}
if (len)
tprints(", ...");
tprints("]");
free(buf);
}
static void
do_msghdr(struct tcb *tcp, struct msghdr *msg, unsigned long data_size)
{
tprintf("{msg_name(%d)=", msg->msg_namelen);
printsock(tcp, (long)msg->msg_name, msg->msg_namelen);
tprintf(", msg_iov(%lu)=", (unsigned long)msg->msg_iovlen);
tprint_iov_upto(tcp, (unsigned long)msg->msg_iovlen,
(unsigned long)msg->msg_iov, 1, data_size);
#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL
tprintf(", msg_controllen=%lu", (unsigned long)msg->msg_controllen);
if (msg->msg_controllen)
printcmsghdr(tcp, (unsigned long) msg->msg_control,
msg->msg_controllen);
tprints(", msg_flags=");
printflags(msg_flags, msg->msg_flags, "MSG_???");
#else /* !HAVE_STRUCT_MSGHDR_MSG_CONTROL */
tprintf("msg_accrights=%#lx, msg_accrightslen=%u",
(unsigned long) msg->msg_accrights, msg->msg_accrightslen);
#endif /* !HAVE_STRUCT_MSGHDR_MSG_CONTROL */
tprints("}");
}
struct msghdr32 {
uint32_t /* void* */ msg_name;
uint32_t /* socklen_t */msg_namelen;
uint32_t /* iovec* */ msg_iov;
uint32_t /* size_t */ msg_iovlen;
uint32_t /* void* */ msg_control;
uint32_t /* size_t */ msg_controllen;
uint32_t /* int */ msg_flags;
};
struct mmsghdr32 {
struct msghdr32 msg_hdr;
uint32_t /* unsigned */ msg_len;
};
#ifndef HAVE_STRUCT_MMSGHDR
struct mmsghdr {
struct msghdr msg_hdr;
unsigned msg_len;
};
#endif
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
static void
copy_from_msghdr32(struct msghdr *to_msg, struct msghdr32 *from_msg32)
{
to_msg->msg_name = (void*)(long)from_msg32->msg_name;
to_msg->msg_namelen = from_msg32->msg_namelen;
to_msg->msg_iov = (void*)(long)from_msg32->msg_iov;
to_msg->msg_iovlen = from_msg32->msg_iovlen;
to_msg->msg_control = (void*)(long)from_msg32->msg_control;
to_msg->msg_controllen = from_msg32->msg_controllen;
to_msg->msg_flags = from_msg32->msg_flags;
}
#endif
static bool
extractmsghdr(struct tcb *tcp, long addr, struct msghdr *msg)
{
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
if (current_wordsize == 4) {
struct msghdr32 msg32;
if (umove(tcp, addr, &msg32) < 0)
return false;
copy_from_msghdr32(msg, &msg32);
} else
#endif
if (umove(tcp, addr, msg) < 0)
return false;
return true;
}
static bool
extractmmsghdr(struct tcb *tcp, long addr, unsigned int idx, struct mmsghdr *mmsg)
{
#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
if (current_wordsize == 4) {
struct mmsghdr32 mmsg32;
addr += sizeof(struct mmsghdr32) * idx;
if (umove(tcp, addr, &mmsg32) < 0)
return false;
copy_from_msghdr32(&mmsg->msg_hdr, &mmsg32.msg_hdr);
mmsg->msg_len = mmsg32.msg_len;
} else
#endif
{
addr += sizeof(*mmsg) * idx;
if (umove(tcp, addr, mmsg) < 0)
return false;
}
return true;
}
static void
printmsghdr(struct tcb *tcp, long addr, unsigned long data_size)
{
struct msghdr msg;
if (verbose(tcp) && extractmsghdr(tcp, addr, &msg))
do_msghdr(tcp, &msg, data_size);
else
tprintf("%#lx", addr);
}
void
dumpiov_in_msghdr(struct tcb *tcp, long addr)
{
struct msghdr msg;
if (extractmsghdr(tcp, addr, &msg))
dumpiov(tcp, msg.msg_iovlen, (long)msg.msg_iov);
}
static void
printmmsghdr(struct tcb *tcp, long addr, unsigned int idx, unsigned long msg_len)
{
struct mmsghdr mmsg;
if (extractmmsghdr(tcp, addr, idx, &mmsg)) {
tprints("{");
do_msghdr(tcp, &mmsg.msg_hdr, msg_len ? msg_len : mmsg.msg_len);
tprintf(", %u}", mmsg.msg_len);
}
else
tprintf("%#lx", addr);
}
static void
decode_mmsg(struct tcb *tcp, unsigned long msg_len)
{
/* mmsgvec */
if (syserror(tcp)) {
tprintf("%#lx", tcp->u_arg[1]);
} else {
unsigned int len = tcp->u_rval;
unsigned int i;
tprints("{");
for (i = 0; i < len; ++i) {
if (i)
tprints(", ");
printmmsghdr(tcp, tcp->u_arg[1], i, msg_len);
}
tprints("}");
}
/* vlen */
tprintf(", %u, ", (unsigned int) tcp->u_arg[2]);
/* flags */
printflags(msg_flags, tcp->u_arg[3], "MSG_???");
}
void
dumpiov_in_mmsghdr(struct tcb *tcp, long addr)
{
unsigned int len = tcp->u_rval;
unsigned int i;
struct mmsghdr mmsg;
for (i = 0; i < len; ++i) {
if (extractmmsghdr(tcp, addr, i, &mmsg)) {
tprintf(" = %lu buffers in vector %u\n",
(unsigned long)mmsg.msg_hdr.msg_iovlen, i);
dumpiov(tcp, mmsg.msg_hdr.msg_iovlen,
(long)mmsg.msg_hdr.msg_iov);
}
}
}
#endif /* HAVE_SENDMSG */
/*
* low bits of the socket type define real socket type,
* other bits are socket type flags.
*/
static void
tprint_sock_type(int flags)
{
const char *str = xlookup(socktypes, flags & SOCK_TYPE_MASK);
if (str) {
tprints(str);
flags &= ~SOCK_TYPE_MASK;
if (!flags)
return;
tprints("|");
}
printflags(sock_type_flags, flags, "SOCK_???");
}
SYS_FUNC(socket)
{
if (entering(tcp)) {
printxval(domains, tcp->u_arg[0], "PF_???");
tprints(", ");
tprint_sock_type(tcp->u_arg[1]);
tprints(", ");
switch (tcp->u_arg[0]) {
case PF_INET:
#ifdef PF_INET6
case PF_INET6:
#endif
printxval(inet_protocols, tcp->u_arg[2], "IPPROTO_???");
break;
#ifdef PF_IPX
case PF_IPX:
/* BTW: I don't believe this.. */
tprints("[");
printxval(domains, tcp->u_arg[2], "PF_???");
tprints("]");
break;
#endif /* PF_IPX */
#ifdef PF_NETLINK
case PF_NETLINK:
printxval(netlink_protocols, tcp->u_arg[2], "NETLINK_???");
break;
#endif
#if defined(PF_BLUETOOTH) && defined(HAVE_BLUETOOTH_BLUETOOTH_H)
case PF_BLUETOOTH:
printxval(bt_protocols, tcp->u_arg[2], "BTPROTO_???");
break;
#endif
default:
tprintf("%lu", tcp->u_arg[2]);
break;
}
}
return 0;
}
SYS_FUNC(bind)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
printsock(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
SYS_FUNC(connect)
{
return sys_bind(tcp);
}
SYS_FUNC(listen)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
tprintf("%lu", tcp->u_arg[1]);
}
return 0;
}
static int
do_sockname(struct tcb *tcp, int flags_arg)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
return 0;
}
if (!tcp->u_arg[2])
tprintf("%#lx, NULL", tcp->u_arg[1]);
else {
int len;
if (tcp->u_arg[1] == 0 || syserror(tcp)
|| umove(tcp, tcp->u_arg[2], &len) < 0) {
tprintf("%#lx", tcp->u_arg[1]);
} else {
printsock(tcp, tcp->u_arg[1], len);
}
tprints(", ");
printnum_int(tcp, tcp->u_arg[2], "%u");
}
if (flags_arg >= 0) {
tprints(", ");
printflags(sock_type_flags, tcp->u_arg[flags_arg],
"SOCK_???");
}
return 0;
}
SYS_FUNC(accept)
{
do_sockname(tcp, -1);
return RVAL_FD;
}
SYS_FUNC(accept4)
{
do_sockname(tcp, 3);
return RVAL_FD;
}
SYS_FUNC(send)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu, ", tcp->u_arg[2]);
/* flags */
printflags(msg_flags, tcp->u_arg[3], "MSG_???");
}
return 0;
}
SYS_FUNC(sendto)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu, ", tcp->u_arg[2]);
/* flags */
printflags(msg_flags, tcp->u_arg[3], "MSG_???");
/* to address */
tprints(", ");
printsock(tcp, tcp->u_arg[4], tcp->u_arg[5]);
/* to length */
tprintf(", %lu", tcp->u_arg[5]);
}
return 0;
}
#ifdef HAVE_SENDMSG
SYS_FUNC(sendmsg)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
printmsghdr(tcp, tcp->u_arg[1], (unsigned long) -1L);
/* flags */
tprints(", ");
printflags(msg_flags, tcp->u_arg[2], "MSG_???");
}
return 0;
}
SYS_FUNC(sendmmsg)
{
if (entering(tcp)) {
/* sockfd */
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
if (!verbose(tcp)) {
tprintf("%#lx, %u, ",
tcp->u_arg[1], (unsigned int) tcp->u_arg[2]);
printflags(msg_flags, tcp->u_arg[3], "MSG_???");
}
} else {
if (verbose(tcp))
decode_mmsg(tcp, (unsigned long) -1L);
}
return 0;
}
#endif /* HAVE_SENDMSG */
SYS_FUNC(recv)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
} else {
if (syserror(tcp))
tprintf("%#lx", tcp->u_arg[1]);
else
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
tprintf(", %lu, ", tcp->u_arg[2]);
printflags(msg_flags, tcp->u_arg[3], "MSG_???");
}
return 0;
}
SYS_FUNC(recvfrom)
{
int fromlen;
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
} else {
if (syserror(tcp)) {
tprintf("%#lx, %lu, %lu, %#lx, %#lx",
tcp->u_arg[1], tcp->u_arg[2], tcp->u_arg[3],
tcp->u_arg[4], tcp->u_arg[5]);
return 0;
}
/* buf */
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
/* len */
tprintf(", %lu, ", tcp->u_arg[2]);
/* flags */
printflags(msg_flags, tcp->u_arg[3], "MSG_???");
/* from address, len */
if (!tcp->u_arg[4] || !tcp->u_arg[5]) {
if (tcp->u_arg[4] == 0)
tprints(", NULL");
else
tprintf(", %#lx", tcp->u_arg[4]);
if (tcp->u_arg[5] == 0)
tprints(", NULL");
else
tprintf(", %#lx", tcp->u_arg[5]);
return 0;
}
if (umove(tcp, tcp->u_arg[5], &fromlen) < 0) {
tprints(", {...}, [?]");
return 0;
}
tprints(", ");
printsock(tcp, tcp->u_arg[4], tcp->u_arg[5]);
/* from length */
tprintf(", [%u]", fromlen);
}
return 0;
}
#ifdef HAVE_SENDMSG
SYS_FUNC(recvmsg)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
} else {
if (syserror(tcp))
tprintf("%#lx", tcp->u_arg[1]);
else
printmsghdr(tcp, tcp->u_arg[1], tcp->u_rval);
/* flags */
tprints(", ");
printflags(msg_flags, tcp->u_arg[2], "MSG_???");
}
return 0;
}
SYS_FUNC(recvmmsg)
{
/* +5 chars are for "left " prefix */
static char str[5 + TIMESPEC_TEXT_BUFSIZE];
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
if (verbose(tcp)) {
sprint_timespec(str, tcp, tcp->u_arg[4]);
/* Abusing tcp->auxstr as temp storage.
* Will be used and freed on syscall exit.
*/
tcp->auxstr = strdup(str);
} else {
tprintf("%#lx, %ld, ", tcp->u_arg[1], tcp->u_arg[2]);