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strace/block.c
Dmitry V. Levin 2479ef0bce Fix printing tracee's long integers 
Replace ambiguous printnum_long that used to fetch native long integers
from tracee's memory with printnum_ptr, printnum_slong, and printnum_ulong
that fetch tracee's pointer, signed long, and unsigned long integers.

* defs.h (printnum_long, printpair_long): Remove prototypes.
(printnum_int64, printpair_int64): Remove macros, declare functions
unconditionally.
[SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4] (printnum_long_int):
New prototype.
(printnum_ptr, printnum_slong, printnum_ulong): New macros.
* aio.c (sys_io_setup): Use printnum_ulong.
* block.c (block_ioctl): Use printnum_slong and printnum_ulong.
* get_robust_list.c (sys_get_robust_list): Use printnum_ptr
and printnum_ulong.
* io.c (print_off_t): Remove.
(sys_sendfile): Use printnum_ulong.
* ipc.c (sys_semctl): Use printnum_ptr.
* prctl.c (sys_prctl): Likewise.
* process.c (sys_ptrace): Likewise.
* rtc.c (rtc_ioctl): Use printnum_ulong.
* util.c (printnum_long, printpair_long): Remove.
(printnum_int64, printpair_int64): Define unconditionally.
[SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4] (printnum_long_int):
New function.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Elvira Khabirova <lineprinter0@gmail.com>
2015-08-18 16:15:33 +00:00

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/*
* Copyright (c) 2009, 2010 Jeff Mahoney <jeffm@suse.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include <linux/blkpg.h>
#include <linux/fs.h>
#include <linux/hdreg.h>
/* ioctls <= 114 are present in Linux 2.4. The following ones have been
* added since then and headers containing them may not be available on
* every system. */
#define BLKTRACE_BDEV_SIZE 32
struct blk_user_trace_setup {
char name[BLKTRACE_BDEV_SIZE]; /* output */
uint16_t act_mask; /* input */
uint32_t buf_size; /* input */
uint32_t buf_nr; /* input */
uint64_t start_lba;
uint64_t end_lba;
uint32_t pid;
};
#ifndef BLKTRACESETUP
# define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
#endif
#ifndef BLKTRACESTART
# define BLKTRACESTART _IO(0x12,116)
#endif
#ifndef BLKTRACESTOP
# define BLKTRACESTOP _IO(0x12,117)
#endif
#ifndef BLKTRACETEARDOWN
# define BLKTRACETEARDOWN _IO(0x12,118)
#endif
#ifndef BLKDISCARD
# define BLKDISCARD _IO(0x12,119)
#endif
#ifndef BLKIOMIN
# define BLKIOMIN _IO(0x12,120)
#endif
#ifndef BLKIOOPT
# define BLKIOOPT _IO(0x12,121)
#endif
#ifndef BLKALIGNOFF
# define BLKALIGNOFF _IO(0x12,122)
#endif
#ifndef BLKPBSZGET
# define BLKPBSZGET _IO(0x12,123)
#endif
#ifndef BLKDISCARDZEROES
# define BLKDISCARDZEROES _IO(0x12,124)
#endif
#ifndef BLKSECDISCARD
# define BLKSECDISCARD _IO(0x12,125)
#endif
#ifndef BLKROTATIONAL
# define BLKROTATIONAL _IO(0x12,126)
#endif
#ifndef BLKZEROOUT
# define BLKZEROOUT _IO(0x12,127)
#endif
#include "xlat/blkpg_ops.h"
static void
print_blkpg_req(struct tcb *tcp, const struct blkpg_ioctl_arg *blkpg)
{
struct blkpg_partition p;
tprints("{");
printxval(blkpg_ops, blkpg->op, "BLKPG_???");
tprintf(", flags=%d, datalen=%d, data=",
blkpg->flags, blkpg->datalen);
if (!umove_or_printaddr(tcp, (long) blkpg->data, &p)) {
tprintf("{start=%lld, length=%lld, pno=%d, devname=",
p.start, p.length, p.pno);
print_quoted_string(p.devname, sizeof(p.devname),
QUOTE_0_TERMINATED);
tprints(", volname=");
print_quoted_string(p.volname, sizeof(p.volname),
QUOTE_0_TERMINATED);
tprints("}");
}
tprints("}");
}
int
block_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
{
switch (code) {
/* take arg as a value, not as a pointer */
case BLKRASET:
case BLKFRASET:
tprintf(", %lu", arg);
break;
/* take a signed int */
case BLKROSET:
case BLKBSZSET:
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
/* return an unsigned short */
case BLKSECTGET:
case BLKROTATIONAL:
if (entering(tcp))
return 0;
tprints(", ");
printnum_short(tcp, arg, "%hu");
break;
/* return a signed int */
case BLKROGET:
case BLKBSZGET:
case BLKSSZGET:
case BLKALIGNOFF:
if (entering(tcp))
return 0;
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
/* return an unsigned int */
case BLKPBSZGET:
case BLKIOMIN:
case BLKIOOPT:
case BLKDISCARDZEROES:
if (entering(tcp))
return 0;
tprints(", ");
printnum_int(tcp, arg, "%u");
break;
/* return a signed long */
case BLKRAGET:
case BLKFRAGET:
if (entering(tcp))
return 0;
tprints(", ");
printnum_slong(tcp, arg);
break;
/* returns an unsigned long */
case BLKGETSIZE:
if (entering(tcp))
return 0;
tprints(", ");
printnum_ulong(tcp, arg);
break;
#ifdef HAVE_BLKGETSIZE64
/* returns an uint64_t */
case BLKGETSIZE64:
if (entering(tcp))
return 0;
tprints(", ");
printnum_int64(tcp, arg, "%" PRIu64);
break;
#endif
/* takes a pair of uint64_t */
case BLKDISCARD:
case BLKSECDISCARD:
case BLKZEROOUT:
tprints(", ");
printpair_int64(tcp, arg, "%" PRIx64);
break;
/* More complex types */
case HDIO_GETGEO:
if (entering(tcp))
return 0;
else {
struct hd_geometry geo;
tprints(", ");
if (!umove_or_printaddr(tcp, arg, &geo))
tprintf("{heads=%u, sectors=%u, "
"cylinders=%u, start=%lu}",
(unsigned)geo.heads,
(unsigned)geo.sectors,
(unsigned)geo.cylinders,
geo.start);
}
break;
case BLKPG: {
struct blkpg_ioctl_arg blkpg;
tprints(", ");
if (!umove_or_printaddr(tcp, arg, &blkpg))
print_blkpg_req(tcp, &blkpg);
break;
}
case BLKTRACESETUP:
if (entering(tcp)) {
struct blk_user_trace_setup buts;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &buts))
break;
tprintf("{act_mask=%u, buf_size=%u, "
"buf_nr=%u, start_lba=%" PRIu64 ", "
"end_lba=%" PRIu64 ", pid=%u",
(unsigned)buts.act_mask, buts.buf_size,
buts.buf_nr, buts.start_lba,
buts.end_lba, buts.pid);
return 1;
} else {
struct blk_user_trace_setup buts;
if (syserror(tcp)) {
tprints("}");
break;
}
tprints(", ");
if (umove(tcp, arg, &buts) < 0) {
tprints("???}");
break;
}
tprints(", name=");
print_quoted_string(buts.name, sizeof(buts.name),
QUOTE_0_TERMINATED);
tprints("}");
break;
}
#ifdef FITRIM
/* First seen in linux-2.6.37 */
case FITRIM: {
struct fstrim_range fstrim;
tprints(", ");
if (!umove_or_printaddr(tcp, arg, &fstrim))
tprintf("{start=%#" PRIx64 ", "
"len=%#" PRIx64 ", "
"minlen=%#" PRIx64 "}",
(uint64_t) fstrim.start,
(uint64_t) fstrim.len,
(uint64_t) fstrim.minlen);
break;
}
#endif
/* No arguments */
case BLKRRPART:
case BLKFLSBUF:
case BLKTRACESTART:
case BLKTRACESTOP:
case BLKTRACETEARDOWN:
#ifdef FIFREEZE
case FIFREEZE:
case FITHAW:
#endif
break;
default:
return RVAL_DECODED;
}
return RVAL_DECODED | 1;
}
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