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73030aa5fb000bf0ff2ae06992b595874f627715
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69 Commits

Author SHA1 Message Date
Milan Broz
73030aa5fb Make block size size_t type. 
And fix all related comparisons and functions.
 2017-06-08 14:39:54 +02:00
Milan Broz
34bf809e51 Use device alignment wrapper. 
And cache the value to not call ioctl on every block read/write.
 2017-06-08 09:30:53 +02:00
Milan Broz
3f9346836e Get rid of old alignment code and use posix_memalign. 
We require posix_memalign already for some time so it makes
no sense to keep old workarounds.
 2017-04-30 13:13:46 +02:00
Milan Broz
eb59311136 Fix access to unaligned hidden TrueCrypt header. 
On native 4k-sector device the old hidden header is not aligned
with hw sector size and derect-io access with SEEK_END fails.

Let's extend blockwise functions to support a negative offset
and use the same logic as normal unaligned writes.

Fixes problem mentioned in
https://gitlab.com/cryptsetup/cryptsetup/merge_requests/18
 2017-03-27 12:04:31 +02:00
Milan Broz
98368c4770 Update copyright years. 2017-03-12 13:17:15 +01:00
Eduardo Villanueva Che
2c833c2342 Fixed veritysetup bug with hash offsets bigger than 2gb. 
The lseek in function write_blockwise() could return value
that is greater than integer for result so it can overflow
and fail the whole write.
[comment added by mbroz]
 2016-10-22 09:24:09 +02:00
Milan Broz
229497871d Fix write_lseek prototype and avoid using void in arithmetic warning. 2016-01-03 16:05:17 +01:00
Ondrej Kozina
8e160562ee read_lseek_blockwise: use void pointer 2015-12-12 17:02:27 +01:00
Ondrej Kozina
091dfa0c26 Slight code style improvements for blockwise functions. 2015-12-01 10:57:04 +01:00
Ondrej Kozina
7fc006b63b Add interrupt safe read_lseek_blockwise function. 2015-12-01 10:52:42 +01:00
Ondrej Kozina
64f3df44ee Use read/write buffer functions where appropriate. 2015-12-01 10:51:56 +01:00
Ondrej Kozina
42ccddeff3 Add read_buffer and write_buffer functions. 
Introduce functions for proper I/O handling. These functions
are able to deal with interrupts and partial I/O.
 2015-12-01 10:44:02 +01:00
Ondrej Kozina
0435fbf2e5 Avoid write with zero size. 
This can happen if write buffer size is smaller than underlying
block size and initial buffer is misaligned.

Also use size_t for buffer length variables.
 2015-12-01 10:42:08 +01:00
Milan Broz
bb8dbfdf5b Update author name. 2014-06-23 21:40:12 +02:00
Milan Broz
29f21208a0 Change License from GPLv2 only to GPLv2+ ("or any later"). 
Agreed by all copyright authors.
 2012-12-29 11:33:54 +01:00
Milan Broz
83f02e6682 Add copyright line for files I have written or modified. 2012-12-21 16:40:33 +01:00
Milan Broz
9ae7b7d1be Fix regression in header backup (1.5.1). 
Access to backup file must handle write to regular files too.
 2012-12-19 13:19:05 +01:00
Milan Broz
50d5cfa8bc Get page size should never fail (in the works case it fails later with wrong alignment). 2012-12-10 17:47:06 +01:00
Milan Broz
98db3bc0bf Fix blockwise read/write for end writes near end of device. 
Ignore setpriority failure (will be remoced later anyway).
 2012-11-25 22:57:32 +01:00
Milan Broz
1d5788f779 Set context for DM log for all DM backend entries. 
Try to handle error if run as non-root user better.
 2012-08-14 19:17:13 +02:00
Milan Broz
65f975655c New device access backend. 
Allocate loop device late (only when real block device needed).
Rework underlying device/file access functions.
Move all device (and ioctl) access to utils_device.c.

Allows using file where appropriate without allocation loop device.
 2012-08-12 22:00:17 +02:00
Milan Broz
4b8f91d0d9 Remove some compilation warnings. 2012-06-10 18:56:04 +02:00
Milan Broz
cd8826618d Warn if block exceeds page size. 2012-06-07 15:09:58 +02:00
Milan Broz
f720affe8c Relax --shared test, allow mapping even for overlapping segments. 
Support shared flag for LUKS devices (dangerous).
 2012-05-02 00:58:54 +02:00
Milan Broz
ee8425b836 Version 1.4.2. 
Add header and copyright for header files.
 2012-04-02 22:03:05 +02:00
Milan Broz
7835b365a7 Fix FSF address in license text according to 
http://www.gnu.org/licenses/old-licenses/gpl-2.0.html

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@671 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-11-02 22:35:21 +00:00
Milan Broz
d7960b9307 Simplify global error call. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@622 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-10-09 13:45:38 +00:00
Milan Broz
d2fbc963ca If device is not rotational, do not use Gutmann wipe method. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@615 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-10-08 16:17:08 +00:00
Milan Broz
7665f8e805 Improve check for invalid offset and size values. (thx to okozina) 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@588 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-08-01 12:27:34 +00:00
Milan Broz
f80b506b65 * Allow different data offset setting for detached header. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@576 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-07-20 17:39:38 +00:00
Milan Broz
913ef7c07e Rewrite dm query/create function backend. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@570 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-07-17 22:35:17 +00:00
Milan Broz
790ef04304 Fix error message. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@560 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-07-01 16:41:59 +00:00
Milan Broz
d44d07c9eb * Add --shared option for creating non-overlapping crypt segments. 
* Add shared flag to libcryptsetup api.
* Fix plain crypt format parameters to include size option (API change).

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@559 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-07-01 16:38:58 +00:00
Milan Broz
2755f37266 Move devpath scan to separate file. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@529 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-05-24 11:19:00 +00:00
Milan Broz
1b58fab430 Remove old ifdef, all recent systems have this defined. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@513 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-04-18 10:52:28 +00:00
Milan Broz
231a2e932d Fix possible leaks in blockwise read/write code. 
Fix lseek_write blockwise function (not used in that mode anyway).

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@511 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-04-18 10:52:15 +00:00
Milan Broz
5d2205a2f8 Fix verbose mode compiler warnings. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@510 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-04-18 10:52:02 +00:00
Milan Broz
ddcdd76cc2 Specify copyright holders in source files. 
Add README notes.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@461 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-03-14 14:17:38 +00:00
Milan Broz
d9ba34693f Add support for automatic loop device use (image infile etc). 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@443 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-03-11 19:04:37 +00:00
Milan Broz
0a905364fa Fix mapping removal if device disappeared but node still exists. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@420 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-01-29 15:55:27 +00:00
Milan Broz
66bea4b3be Add dm flags for query for features. 
Move adjust device helper to utils.
Fix locking memory message.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@416 36d66b0a-2a48-0410-832c-cd162a569da5
 2011-01-25 18:48:41 +00:00
Milan Broz
a70b27762d Fix some warnings if compiled with clang. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@371 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-11-15 16:19:19 +00:00
Milan Broz
b7caa72acd * Disallow mapping of device which is already in use (mapped or mounted). 
* Disallow luksFormat on device in use.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@361 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-11-05 17:53:33 +00:00
Milan Broz
dfe77be748 * Implement --use-random and --use-urandom for luksFormat to allow setting of RNG for volume key generator. 
* Add crypt_set_rng_type() and crypt_get_rng_type() to API.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@354 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-10-27 15:35:23 +00:00
Milan Broz
3ae161df5d Move get_key to common code, simplify verify flags. 
(This code need rewrite anyway).

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@352 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-10-26 22:08:02 +00:00
Milan Broz
3a5a1ea0e7 Move safe alloc routines into common lib file. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@351 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-10-26 22:07:43 +00:00
Milan Broz
ef44e6e3d3 Use default data alignment to 1MiB. 
If there is topology info, use default if topology is multiple of default,
otherwise use topology values.

See https://bugzilla.redhat.com/show_bug.cgi?id=621684 and issue 55.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@325 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-08-09 16:34:42 +00:00
Milan Broz
0a68f45bb2 Fix device alignment ioctl calls parameters. 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@251 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-06-01 14:39:10 +00:00
Milan Broz
205d62af89 Try to make get_key() paramater more obvious... 
git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@236 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-05-27 18:43:47 +00:00
Milan Broz
0516a1a676 Do not use kernel dm-ioctl header directly and remove warnings. 
Add alignment test to distributed files.
Fix write() return compiler warning.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@202 36d66b0a-2a48-0410-832c-cd162a569da5
 2010-04-16 15:48:09 +00:00