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/*
* Copyright ( c ) 1991 , 1992 Paul Kranenburg < pk @ cs . few . eur . nl >
* Copyright ( c ) 1993 Branko Lankester < branko @ hacktic . nl >
* Copyright ( c ) 1993 , 1994 , 1995 , 1996 Rick Sladkey < jrs @ world . std . com >
* Copyright ( c ) 1996 - 2000 Wichert Akkerman < wichert @ cistron . nl >
* Copyright ( c ) 2005 - 2016 Dmitry V . Levin < ldv @ altlinux . org >
* 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"
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# include "print_fields.h"
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# include "msghdr.h"
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# include <limits.h>
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# include <arpa/inet.h>
# include <netinet/in.h>
# include "xlat/msg_flags.h"
# include "xlat/scmvals.h"
# include "xlat/ip_cmsg_types.h"
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# ifndef current_wordsize
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struct cmsghdr32 {
uint32_t cmsg_len ;
int cmsg_level ;
int cmsg_type ;
} ;
# endif
typedef union {
char * ptr ;
struct cmsghdr * cmsg ;
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# ifndef current_wordsize
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struct cmsghdr32 * cmsg32 ;
# endif
} union_cmsghdr ;
static void
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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print_scm_rights ( struct tcb * tcp , const void * cmsg_data ,
const unsigned int data_len )
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{
const int * fds = cmsg_data ;
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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const unsigned int nfds = data_len / sizeof ( * fds ) ;
unsigned int i ;
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msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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tprints ( " [ " ) ;
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for ( i = 0 ; i < nfds ; + + i ) {
if ( i )
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tprints ( " , " ) ;
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if ( abbrev ( tcp ) & & i > = max_strlen ) {
tprints ( " ... " ) ;
break ;
}
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printfd ( tcp , fds [ i ] ) ;
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}
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tprints ( " ] " ) ;
}
static void
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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print_scm_creds ( struct tcb * tcp , const void * cmsg_data ,
const unsigned int data_len )
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{
const struct ucred * uc = cmsg_data ;
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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tprintf ( " {pid=%u, uid=%u, gid=%u} " ,
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( unsigned ) uc - > pid , ( unsigned ) uc - > uid , ( unsigned ) uc - > gid ) ;
}
static void
print_scm_security ( struct tcb * tcp , const void * cmsg_data ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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const unsigned int data_len )
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{
print_quoted_string ( cmsg_data , data_len , 0 ) ;
}
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static void
print_scm_timestamp ( struct tcb * tcp , const void * cmsg_data ,
const unsigned int data_len )
{
print_struct_timeval_data_size ( cmsg_data , data_len ) ;
}
static void
print_scm_timestampns ( struct tcb * tcp , const void * cmsg_data ,
const unsigned int data_len )
{
print_struct_timespec_data_size ( cmsg_data , data_len ) ;
}
static void
print_scm_timestamping ( struct tcb * tcp , const void * cmsg_data ,
const unsigned int data_len )
{
print_struct_timespec_array_data_size ( cmsg_data , 3 , data_len ) ;
}
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static void
print_cmsg_ip_pktinfo ( struct tcb * tcp , const void * cmsg_data ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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const unsigned int data_len )
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{
const struct in_pktinfo * info = cmsg_data ;
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PRINT_FIELD_IFINDEX ( " { " , * info , ipi_ifindex ) ;
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PRINT_FIELD_INET4_ADDR ( " , " , * info , ipi_spec_dst ) ;
PRINT_FIELD_INET4_ADDR ( " , " , * info , ipi_addr ) ;
tprints ( " } " ) ;
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}
static void
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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print_cmsg_uint ( struct tcb * tcp , const void * cmsg_data ,
const unsigned int data_len )
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{
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const unsigned int * p = cmsg_data ;
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msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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tprintf ( " [%u] " , * p ) ;
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}
static void
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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print_cmsg_uint8_t ( struct tcb * tcp , const void * cmsg_data ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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const unsigned int data_len )
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{
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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const uint8_t * p = cmsg_data ;
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msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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tprintf ( " [%#x] " , * p ) ;
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}
static void
print_cmsg_ip_opts ( struct tcb * tcp , const void * cmsg_data ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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const unsigned int data_len )
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{
const unsigned char * opts = cmsg_data ;
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
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unsigned int i ;
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msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
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tprints ( " [ " ) ;
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for ( i = 0 ; i < data_len ; + + i ) {
if ( i )
tprints ( " , " ) ;
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if ( abbrev ( tcp ) & & i > = max_strlen ) {
tprints ( " ... " ) ;
break ;
}
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tprintf ( " 0x%02x " , opts [ i ] ) ;
}
tprints ( " ] " ) ;
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}
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
struct sock_ee {
uint32_t ee_errno ;
uint8_t ee_origin ;
uint8_t ee_type ;
uint8_t ee_code ;
uint8_t ee_pad ;
uint32_t ee_info ;
uint32_t ee_data ;
struct sockaddr_in offender ;
} ;
2016-06-27 03:02:55 +03:00
static void
print_cmsg_ip_recverr ( struct tcb * tcp , const void * cmsg_data ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
const unsigned int data_len )
2016-06-27 03:02:55 +03:00
{
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
const struct sock_ee * const err = cmsg_data ;
tprintf ( " {ee_errno=%u, ee_origin=%u, ee_type=%u, ee_code=%u "
2017-07-09 19:04:24 +03:00
" , ee_info=%u, ee_data=%u " ,
2016-06-27 03:02:55 +03:00
err - > ee_errno , err - > ee_origin , err - > ee_type ,
err - > ee_code , err - > ee_info , err - > ee_data ) ;
2017-07-09 19:04:24 +03:00
PRINT_FIELD_SOCKADDR ( " , " , * err , offender ) ;
2016-06-27 03:02:55 +03:00
tprints ( " } " ) ;
}
static void
print_cmsg_ip_origdstaddr ( struct tcb * tcp , const void * cmsg_data ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
const unsigned int data_len )
2016-06-27 03:02:55 +03:00
{
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
const unsigned int addr_len =
2016-07-01 01:26:35 +03:00
data_len > sizeof ( struct sockaddr_storage )
? sizeof ( struct sockaddr_storage ) : data_len ;
2016-06-27 03:02:55 +03:00
2017-07-09 19:04:24 +03:00
print_sockaddr ( cmsg_data , addr_len ) ;
2016-06-27 03:02:55 +03:00
}
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
typedef void ( * const cmsg_printer ) ( struct tcb * , const void * , unsigned int ) ;
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
static const struct {
const cmsg_printer printer ;
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
const unsigned int min_len ;
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
} cmsg_socket_printers [ ] = {
[ SCM_RIGHTS ] = { print_scm_rights , sizeof ( int ) } ,
[ SCM_CREDENTIALS ] = { print_scm_creds , sizeof ( struct ucred ) } ,
2017-06-15 17:02:40 +03:00
[ SCM_SECURITY ] = { print_scm_security , 1 } ,
[ SCM_TIMESTAMP ] = { print_scm_timestamp , 1 } ,
[ SCM_TIMESTAMPNS ] = { print_scm_timestampns , 1 } ,
[ SCM_TIMESTAMPING ] = { print_scm_timestamping , 1 }
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
} , cmsg_ip_printers [ ] = {
[ IP_PKTINFO ] = { print_cmsg_ip_pktinfo , sizeof ( struct in_pktinfo ) } ,
[ IP_TTL ] = { print_cmsg_uint , sizeof ( unsigned int ) } ,
[ IP_TOS ] = { print_cmsg_uint8_t , 1 } ,
[ IP_RECVOPTS ] = { print_cmsg_ip_opts , 1 } ,
[ IP_RETOPTS ] = { print_cmsg_ip_opts , 1 } ,
[ IP_RECVERR ] = { print_cmsg_ip_recverr , sizeof ( struct sock_ee ) } ,
[ IP_ORIGDSTADDR ] = { print_cmsg_ip_origdstaddr , sizeof ( struct sockaddr_in ) } ,
[ IP_CHECKSUM ] = { print_cmsg_uint , sizeof ( unsigned int ) } ,
[ SCM_SECURITY ] = { print_scm_security , 1 }
} ;
2016-06-27 03:02:55 +03:00
static void
print_cmsg_type_data ( struct tcb * tcp , const int cmsg_level , const int cmsg_type ,
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
const void * cmsg_data , const unsigned int data_len )
2016-06-27 03:02:55 +03:00
{
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
const unsigned int utype = cmsg_type ;
2016-06-27 03:02:55 +03:00
switch ( cmsg_level ) {
case SOL_SOCKET :
printxval ( scmvals , cmsg_type , " SCM_??? " ) ;
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
if ( utype < ARRAY_SIZE ( cmsg_socket_printers )
& & cmsg_socket_printers [ utype ] . printer
& & data_len > = cmsg_socket_printers [ utype ] . min_len ) {
tprints ( " , cmsg_data= " ) ;
cmsg_socket_printers [ utype ] . printer ( tcp , cmsg_data , data_len ) ;
2016-06-27 03:02:55 +03:00
}
break ;
case SOL_IP :
printxval ( ip_cmsg_types , cmsg_type , " IP_??? " ) ;
msghdr.c: reorganize struct cmsghdr handler
* msghdr.c (sock_ee): New structure.
(print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_ip_opts,
print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr): Remove data_len
argument validity check, don't print ", cmsg_data=" prefix here.
(print_cmsg_ip_tos): Likewise. Rename to print_cmsg_uint8_t.
(cmsg_printer): New type.
(cmsg_socket_printers, cmsg_ip_printers): New arrays.
(print_cmsg_type_data): Use them to handle struct cmsghdr
and its cmsg_data.
2016-07-01 01:49:36 +03:00
if ( utype < ARRAY_SIZE ( cmsg_ip_printers )
& & cmsg_ip_printers [ utype ] . printer
& & data_len > = cmsg_ip_printers [ utype ] . min_len ) {
tprints ( " , cmsg_data= " ) ;
cmsg_ip_printers [ utype ] . printer ( tcp , cmsg_data , data_len ) ;
2016-06-27 03:02:55 +03:00
}
break ;
default :
2016-07-01 01:14:51 +03:00
tprintf ( " %#x " , cmsg_type ) ;
2016-06-27 03:02:55 +03:00
}
}
2016-07-04 01:15:45 +03:00
static unsigned int
get_optmem_max ( void )
{
static int optmem_max ;
if ( ! optmem_max ) {
if ( read_int_from_file ( " /proc/sys/net/core/optmem_max " ,
& optmem_max ) | | optmem_max < = 0 ) {
2016-07-16 01:58:48 +03:00
optmem_max = sizeof ( long long ) * ( 2 * IOV_MAX + 512 ) ;
2016-07-04 01:15:45 +03:00
} else {
optmem_max = ( optmem_max + sizeof ( long long ) - 1 )
& ~ ( sizeof ( long long ) - 1 ) ;
}
}
return optmem_max ;
}
2016-06-27 03:02:55 +03:00
static void
2016-12-26 13:26:03 +03:00
decode_msg_control ( struct tcb * const tcp , const kernel_ulong_t addr ,
const kernel_ulong_t in_control_len )
2016-06-27 03:02:55 +03:00
{
2016-07-04 01:15:45 +03:00
if ( ! in_control_len )
2016-07-01 01:34:27 +03:00
return ;
tprints ( " , msg_control= " ) ;
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
const unsigned int cmsg_size =
2016-12-26 23:21:23 +03:00
# ifndef current_wordsize
2016-06-27 03:02:55 +03:00
( current_wordsize < sizeof ( long ) ) ? sizeof ( struct cmsghdr32 ) :
# endif
sizeof ( struct cmsghdr ) ;
msghdr: change cmsghdr size types from size_t to unsigned int
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
2016-12-25 03:30:28 +03:00
unsigned int control_len = in_control_len > get_optmem_max ( )
? get_optmem_max ( ) : in_control_len ;
unsigned int buf_len = control_len ;
2016-07-01 01:34:27 +03:00
char * buf = buf_len < cmsg_size ? NULL : malloc ( buf_len ) ;
if ( ! buf | | umoven ( tcp , addr , buf_len , buf ) < 0 ) {
2016-06-27 03:02:55 +03:00
printaddr ( addr ) ;
free ( buf ) ;
return ;
}
union_cmsghdr u = { . ptr = buf } ;
tprints ( " [ " ) ;
2016-07-01 01:34:27 +03:00
while ( buf_len > = cmsg_size ) {
2016-12-26 13:26:03 +03:00
const kernel_ulong_t cmsg_len =
2016-12-26 23:21:23 +03:00
# ifndef current_wordsize
2016-06-27 03:02:55 +03:00
( current_wordsize < sizeof ( long ) ) ? u . cmsg32 - > cmsg_len :
# endif
u . cmsg - > cmsg_len ;
2016-07-01 01:34:27 +03:00
const int cmsg_level =
2016-12-26 23:21:23 +03:00
# ifndef current_wordsize
2016-06-27 03:02:55 +03:00
( current_wordsize < sizeof ( long ) ) ? u . cmsg32 - > cmsg_level :
# endif
u . cmsg - > cmsg_level ;
2016-07-01 01:34:27 +03:00
const int cmsg_type =
2016-12-26 23:21:23 +03:00
# ifndef current_wordsize
2016-06-27 03:02:55 +03:00
( current_wordsize < sizeof ( long ) ) ? u . cmsg32 - > cmsg_type :
# endif
u . cmsg - > cmsg_type ;
if ( u . ptr ! = buf )
tprints ( " , " ) ;
2016-12-26 13:16:35 +03:00
tprintf ( " {cmsg_len=% " PRI_klu " , cmsg_level= " , cmsg_len ) ;
2016-06-27 03:02:55 +03:00
printxval ( socketlayers , cmsg_level , " SOL_??? " ) ;
tprints ( " , cmsg_type= " ) ;
2016-12-26 13:26:03 +03:00
kernel_ulong_t len = cmsg_len > buf_len ? buf_len : cmsg_len ;
2016-06-27 03:02:55 +03:00
print_cmsg_type_data ( tcp , cmsg_level , cmsg_type ,
( const void * ) ( u . ptr + cmsg_size ) ,
2017-06-18 01:23:09 +03:00
len > cmsg_size ? len - cmsg_size : 0 ) ;
2016-06-27 03:02:55 +03:00
tprints ( " } " ) ;
2016-07-01 01:34:27 +03:00
if ( len < cmsg_size ) {
buf_len - = cmsg_size ;
2016-06-27 03:02:55 +03:00
break ;
}
2016-07-01 01:34:27 +03:00
len = ( cmsg_len + current_wordsize - 1 ) &
2016-12-26 13:26:03 +03:00
~ ( ( kernel_ulong_t ) current_wordsize - 1 ) ;
2016-07-01 01:34:27 +03:00
if ( len > = buf_len ) {
buf_len = 0 ;
2016-06-27 03:02:55 +03:00
break ;
}
2016-07-01 01:34:27 +03:00
u . ptr + = len ;
buf_len - = len ;
}
if ( buf_len ) {
tprints ( " , " ) ;
printaddr ( addr + ( control_len - buf_len ) ) ;
2016-07-04 01:15:45 +03:00
} else if ( control_len < in_control_len ) {
tprints ( " , ... " ) ;
2016-06-27 03:02:55 +03:00
}
tprints ( " ] " ) ;
free ( buf ) ;
}
2016-07-15 01:13:58 +03:00
void
print_struct_msghdr ( struct tcb * tcp , const struct msghdr * msg ,
const int * const p_user_msg_namelen ,
2016-12-26 13:26:03 +03:00
const kernel_ulong_t data_size )
2016-06-27 03:02:55 +03:00
{
2016-07-14 00:56:16 +03:00
const int msg_namelen =
p_user_msg_namelen & & ( int ) msg - > msg_namelen > * p_user_msg_namelen
? * p_user_msg_namelen : ( int ) msg - > msg_namelen ;
2016-07-06 18:49:22 +03:00
2016-06-27 03:02:55 +03:00
tprints ( " {msg_name= " ) ;
2016-07-14 00:56:16 +03:00
const int family =
2016-12-26 04:37:21 +03:00
decode_sockaddr ( tcp , ptr_to_kulong ( msg - > msg_name ) , msg_namelen ) ;
2016-07-14 00:56:16 +03:00
const enum iov_decode decode =
( family = = AF_NETLINK ) ? IOV_DECODE_NETLINK : IOV_DECODE_STR ;
2016-06-27 03:02:55 +03:00
2016-07-14 00:56:16 +03:00
tprints ( " , msg_namelen= " ) ;
if ( p_user_msg_namelen & & * p_user_msg_namelen ! = ( int ) msg - > msg_namelen )
tprintf ( " %d-> " , * p_user_msg_namelen ) ;
tprintf ( " %d " , msg - > msg_namelen ) ;
2016-07-06 18:49:22 +03:00
2016-07-14 00:56:16 +03:00
tprints ( " , msg_iov= " ) ;
2016-07-06 18:49:22 +03:00
2016-12-25 03:20:30 +03:00
tprint_iov_upto ( tcp , msg - > msg_iovlen ,
2016-12-26 04:37:21 +03:00
ptr_to_kulong ( msg - > msg_iov ) , decode , data_size ) ;
2016-12-26 13:16:35 +03:00
tprintf ( " , msg_iovlen=% " PRI_klu , ( kernel_ulong_t ) msg - > msg_iovlen ) ;
2016-06-27 03:02:55 +03:00
2016-12-26 04:37:21 +03:00
decode_msg_control ( tcp , ptr_to_kulong ( msg - > msg_control ) ,
2016-06-27 03:02:55 +03:00
msg - > msg_controllen ) ;
2016-12-26 13:16:35 +03:00
tprintf ( " , msg_controllen=% " PRI_klu , ( kernel_ulong_t ) msg - > msg_controllen ) ;
2016-06-27 03:02:55 +03:00
tprints ( " , msg_flags= " ) ;
printflags ( msg_flags , msg - > msg_flags , " MSG_??? " ) ;
tprints ( " } " ) ;
}
2016-07-15 01:26:28 +03:00
static bool
2016-12-26 13:26:03 +03:00
fetch_msghdr_namelen ( struct tcb * const tcp , const kernel_ulong_t addr ,
2016-12-21 18:36:50 +03:00
int * const p_msg_namelen )
2016-07-14 00:56:16 +03:00
{
struct msghdr msg ;
if ( addr & & verbose ( tcp ) & & fetch_struct_msghdr ( tcp , addr , & msg ) ) {
* p_msg_namelen = msg . msg_namelen ;
return true ;
} else {
return false ;
}
}
2016-07-15 01:26:28 +03:00
static void
2016-12-21 18:36:50 +03:00
decode_msghdr ( struct tcb * const tcp , const int * const p_user_msg_namelen ,
2016-12-26 13:26:03 +03:00
const kernel_ulong_t addr , const kernel_ulong_t data_size )
2016-06-27 03:02:55 +03:00
{
struct msghdr msg ;
if ( addr & & verbose ( tcp ) & & fetch_struct_msghdr ( tcp , addr , & msg ) )
2016-07-15 01:13:58 +03:00
print_struct_msghdr ( tcp , & msg , p_user_msg_namelen , data_size ) ;
2016-06-27 03:02:55 +03:00
else
printaddr ( addr ) ;
}
void
2016-12-26 13:26:03 +03:00
dumpiov_in_msghdr ( struct tcb * const tcp , const kernel_ulong_t addr ,
const kernel_ulong_t data_size )
2016-06-27 03:02:55 +03:00
{
struct msghdr msg ;
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if ( fetch_struct_msghdr ( tcp , addr , & msg ) ) {
dumpiov_upto ( tcp , msg . msg_iovlen ,
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ptr_to_kulong ( msg . msg_iov ) , data_size ) ;
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}
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}
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SYS_FUNC ( sendmsg )
{
printfd ( tcp , tcp - > u_arg [ 0 ] ) ;
tprints ( " , " ) ;
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decode_msghdr ( tcp , 0 , tcp - > u_arg [ 1 ] , - 1 ) ;
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/* flags */
tprints ( " , " ) ;
printflags ( msg_flags , tcp - > u_arg [ 2 ] , " MSG_??? " ) ;
return RVAL_DECODED ;
}
SYS_FUNC ( recvmsg )
{
int msg_namelen ;
if ( entering ( tcp ) ) {
printfd ( tcp , tcp - > u_arg [ 0 ] ) ;
tprints ( " , " ) ;
if ( fetch_msghdr_namelen ( tcp , tcp - > u_arg [ 1 ] , & msg_namelen ) ) {
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set_tcb_priv_ulong ( tcp , msg_namelen ) ;
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return 0 ;
}
printaddr ( tcp - > u_arg [ 1 ] ) ;
} else {
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msg_namelen = get_tcb_priv_ulong ( tcp ) ;
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if ( syserror ( tcp ) )
tprintf ( " {msg_namelen=%d} " , msg_namelen ) ;
else
decode_msghdr ( tcp , & msg_namelen , tcp - > u_arg [ 1 ] ,
tcp - > u_rval ) ;
}
/* flags */
tprints ( " , " ) ;
printflags ( msg_flags , tcp - > u_arg [ 2 ] , " MSG_??? " ) ;
return RVAL_DECODED ;
}
