Commit Graph

10 Commits

Author SHA1 Message Date
Hung-ying Tyan
bf007ebb6f gen: Add progressive hash API
Add hash_init(), hash_update() and hash_finish() to the
hash_algo struct. Add hash_lookup_algo() to look up the
struct given an algorithm name.

Signed-off-by: Hung-ying Tyan <tyanh@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
2014-03-21 16:39:36 -04:00
Tom Rini
4b756b013a hash.c: Correct non-hash subcommand crc32 addr-save support
In the case of not having CONFIG_CMD_HASH but having CONFIG_CMD_CRC32
enabled (and not CONFIG_CRC32_VERIFY), we end up in this part of the
code path on hash_command().  However, we will only have exactly 3 args
here, and 3 > 3 is false, and we will not try and store the hash at the
address given as arg #3.  The next problem however is that we've been
moving argv around so the third value is now in argv[0] not argv[3].

Confirmed on AM335x Beaglebone White.

Signed-off-by: Tom Rini <trini@ti.com>
2013-11-25 10:41:51 -05:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Simon Glass
6f907b422e hash: Add a way to calculate a hash for any algortihm
Rather than needing to call one of many hashing algorithms in U-Boot,
provide a function hash_block() which handles this, and can support all
available hash algorithms.

Once we have md5 supported within hashing, we can use this function in
the FIT image code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14 15:37:24 -04:00
Akshay Saraswat
1f9c92808a gen: Add sha h/w acceleration to hash
Adding H/W acceleration support to hash which can be used
to test SHA 256 hash algorithm.

Signed-off-by: ARUN MANKUZHI <arun.m@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
2013-03-29 20:10:42 +09:00
Simon Glass
218da0f35f hash: Use lower case for hash algorithm names
Rather than use strcasecmp() in the hash algorithm search, require the
caller to do this first. Most of U-Boot can use lower case anyway, and
the hash command can convert to lower case before calling hash_command().
This saves needing strcasecmp() for boards that use hashing but not
the hash command.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-28 19:49:13 -08:00
Simon Glass
bd091b67d0 sandbox: Allow hash functions to work correctly
Use map_sysmem() so that hashing is possible on sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-28 19:49:13 -08:00
Simon Glass
d20a40de9d Roll crc32 into hash infrastructure
Add the CRC32 algorithm to the list of available hashes, and make
the crc32 command use hash_command(). Add a new crc32_wd_buf() to
make this possible, which puts its result in a buffer rather than
returning it as a 32-bit value.

Note: For some boards the hash command is not enabled, neither
are sha1, sha256 or the verify option. In this case the full
hash implementation adds about 500 bytes of overhead. So as a
special case, we use #ifdef to select very simple bahaviour in
that case. The justification for this is that it is currently
a very common case (virtually all boards enable crc32 but only
some enable more advanced features).

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-28 19:09:23 -08:00
Simon Glass
d5b76673a5 hash: Add a flag to support saving hashes in the environment
Some hashing commands permit saving the hash in an environment variable,
and verifying a hash from there. But the crc32 command does not support
this. In order to permit crc32 to use the generic hashing infrastructure,
add a flag to select which behaviour to use.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-28 19:09:23 -08:00
Simon Glass
460408ef9a Add generic hash API
We have a SHA1 command and want to add a SHA256 command also. Instead of
duplicating the code, create a generic hash API which can process
commands for different algorithms.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-11 13:17:34 -07:00