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10 Commits

Author SHA1 Message Date
Dmitry V. Levin
3cfabeb881 loop.c: enhance loop ioctl parser 
Decode as much data on entering syscall as possible.

* loop.c: Include <linux/ioctl.h> instead of <sys/ioctl.h>.
Update for RVAL_DECODED.
(decode_loop_info, decode_loop_info64): New functions.
(loop_ioctl): Use them.  Decode LOOP_SET_STATUS, LOOP_SET_STATUS64,
LOOP_SET_FD, LOOP_CHANGE_FD, LOOP_CTL_ADD and LOOP_CTL_REMOVE on
entering syscall.
Print LOOP_SET_FD and LOOP_CHANGE_FD arguments using printfd.
 2015-07-09 02:04:34 +00:00
Dmitry V. Levin
513e96eb94 Rework string_quote API 
string_quote() has proven to be too hard to use, replace it with
print_quoted_string() that does memory allocation and prints the result.

* defs.h (string_quote): Remove.
(QUOTE_0_TERMINATED, QUOTE_OMIT_LEADING_TRAILING_QUOTES): New macros.
(print_quoted_string): New prototype.
* util.c (string_quote): Make static; take "style" flags instead
of "len", treat QUOTE_0_TERMINATED style flag as former (len == -1);
add QUOTE_OMIT_LEADING_TRAILING_QUOTES style flag support.
(ALLOCA_CUTOFF, use_alloca): New macros.
(print_quoted_string): New function.
(printpathn, printstr): Update to new API.
* loop.c (loop_ioctl): Likewise.
* mtd.c (ubi_ioctl): Likewise.
* net.c (print_scm_security): Likewise.
* socketutils.c (unix_parse_response): Likewise.
 2015-01-26 15:58:18 +00:00
Dmitry V. Levin
c7afb4881f ioctl: assume that all ioctl commands have unsigned int type 
In linux, ioctl command number has a 32-bit unsigned integer type:
	fs/ioctl.c:SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
If the kernel completely ignores other bits on 64-bit architectures,
why should strace care?
Let's follow the kernel and treat it as unsigned int.

* defs.h (struct_ioctlent): Change "code" type to "unsigned int".
(ioctl_decode, ioctl_lookup, block_ioctl, loop_ioctl, mtd_ioctl,
ubi_ioctl, ptp_ioctl, scsi_ioctl, sock_ioctl, term_ioctl, rtc_ioctl,
v4l2_ioctl): Likewise.
* ioctl.c (ioctl_decode, ioctl_lookup, compare, ioctl_next_match):
Likewise.
* block.c (block_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl, ubi_ioctl): Likewise.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (scsi_ioctl): Likewise.
* sock.c (sock_ioctl): Likewise.
* term.c (term_ioctl): Likewise.
* time.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* ioctlsort.c (struct ioctlent, compare, main): Likewise.
 2015-01-20 00:28:10 +00:00
Dmitry V. Levin
d35bdcad13 Compress blank lines 
Suppress empty lines left after automated xlat conversion.
 2014-05-30 22:10:21 +00:00
Dmitry V. Levin
0ed617bd66 Generate xlat/*.in files 
Automatically convert xlat structures from *.c files to xlat/*.in files
using "./generate_xlat_in.sh *.c" command.
 2014-05-30 21:40:03 +00:00
Dmitry V. Levin
5945273533 Use XLAT_END macro 
Automatically update all xlat structures using the following sed regexp:
s/^[[:space:]]*{[[:space:]]*0[[:space:]]*,[[:space:]]*NULL[[:space:]]*,\?[[:space:]]*}[[:space:]]*,\?[[:space:]]*/\tXLAT_END/
 2014-02-05 02:28:18 +00:00
Dmitry V. Levin
bce0cc6a2d Use XLAT macro 
Automatically convert all xlat structures to XLAT form
using the following sed regexp:
s/^[[:space:]]*{[[:space:]]*\([^",}[:space:]]\+\)[[:space:]]*,[[:space:]]*"\1",\?[[:space:]]*}[[:space:]]*/\tXLAT(\1)/
 2014-02-05 01:33:50 +00:00
Denys Vlasenko
318a273ea9 Use %d printf format instead of %i everywhere 
* loop.c (loop_ioctl): Use %d instead of %i.
* mtd.c (mtd_ioctl): Likewise.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-05-16 12:29:09 +02:00
Dmitry V. Levin
cf050db3e8 Fix build with <linux/loop.h> from 2.6.18 kernel headers 
* configure.ac: Check for LO_FLAGS_AUTOCLEAR and LO_FLAGS_PARTSCAN
declarations.
* loop.c (loop_flags_options): Use LO_FLAGS_AUTOCLEAR and
LO_FLAGS_PARTSCAN only when appropriate declarations are available.
(loop_ioctl): Use LOOP_SET_CAPACITY only when it is defined.
 2012-05-02 10:21:49 +00:00
Mike Frysinger
ebee04cfb0 Decode /dev/loop ioctls 
Needed to debug some losetup failures, and it's easier when you can see
what the kernel is getting vs what you think you're sending, so add some
decoders for those ioctls.

* loop.c: New file.
* Makefile.am (strace_SOURCES): Add loop.c.
* defs.h (loop_ioctl): New prototype.
(string_quote): Likewise.
* ioctl.c (ioctl_decode): Call loop_ioctl when code is 'L'.
* util.c (string_quote): Remove static keyword.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2012-04-18 15:27:25 +00:00