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44 Коммитов

Автор SHA1 Сообщение Дата
Jakub Jelen
83fa060cec known_hosts: Avoid using deprecated functions (even from deprecated functions)
Fixes: T165

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2019-09-16 09:35:24 +02:00
Anderson Toshiyuki Sasaki
5b18bcb0ac knownhosts: Use ssh_mkdirs() instead of ssh_mkdir()
Previously, if the path to known_hosts file set through
SSH_OPTIONS_KNOWNHOSTS included missing directories,
ssh_session_update_known_hosts() would fail.  The added test case checks
that this is not the case anymore.

The logic of checking if the directory is accessible before creating it
was replaced by creating the directory if opening the file failed.  This
is to minimize the risk of TOCTOU race conditions.

Fixes: T166

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2019-08-06 16:53:22 +02:00
Anderson Toshiyuki Sasaki
bc95a51710 kex, known_hosts: Use new tokens functions
Replace the old tokens handling functions usage with the new implementation.

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2019-06-12 10:17:54 +02:00
Ben Toews
b1f3cfec34 libssh: deprecate SSH_KEYTYPE_ECDSA
This type is imprecise. We often need the ecdsa_nid in addition to the key type
in order to do anything. We replace this singluar ECDSA type with one type per
curve.

Signed-off-by: Ben Toews <mastahyeti@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2019-04-17 10:21:42 +02:00
Aris Adamantiadis
afe2673cfa bignum: harmonize gcrypt, libcrypto and libmcrypt bignum
Ensure most of the abstraction around the 3 libs are consistent.

Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2019-01-24 11:04:44 +01:00
Tilo Eckert
45058285fc knownhosts: Fix invalid read of known_hosts token
Fixes invalid read introduced by commit 21962d.
Accessing tokens[4] for a known_hosts line of
three tokens led to randomly rejected host keys.

This commit completely removes the check because
the optional comments field may contain whitespace.

Signed-off-by: Tilo Eckert <tilo.eckert@flam.de>
2018-10-13 22:08:36 +02:00
Andreas Schneider
7946104566 known_hosts: Update documentation of deprecated knwon_hosts functions
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-08-21 11:39:50 +02:00
Andreas Schneider
3141dec632 known_hosts: Remove deprecated ssh_knownhosts_algorithms()
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-07-03 15:08:40 +02:00
Andreas Schneider
21962dd154 known_hosts: Simplify invalid tokens check
CID 1393677

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-06-30 14:37:04 +02:00
Andreas Schneider
206f3ff895 Rest in Peace SSHv1
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2018-06-29 14:41:14 +02:00
Andreas Schneider
c563ed636a Remove vim modelines from all files
If you want modelines use my vim plugin:
https://github.com/cryptomilk/git-modeline.vim

git config --add vim.modeline "ts=4 sw=4 et"

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-06-28 08:41:08 +02:00
Andreas Schneider
4550c99222 known_hosts: Mark ssh_is_server_known as deprecated
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-06-04 11:20:28 +02:00
Andreas Schneider
c2f8010b60 known_hosts: Do not leak pubkey_buffer in check_public_key()
CID: 1388447

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-04-18 10:29:21 +02:00
Andreas Schneider
16217454d5 crypto: Change the type of server_pubkey to ssh_key
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-03-21 20:40:02 +01:00
Juraj Vijtiuk
778652460f add mbedtls crypto support
Summary:
This patch adds support for mbedTLS as a crypto backend for libssh.
mbedTLS is an SSL/TLS library that has been designed to mainly be used
in embedded systems.  It is loosely coupled and has a low memory
footprint.  mbedTLS also provides a cryptography library (libmbedcrypto)
that can be used without the TLS modules.
The patch is unfortunately quite big, since several new files had to
be added.
DSA is disabled at compile time, since mbedTLS doesn't support DSA
Patch review and feedback would be appreciated, and if any issues or
suggestions appear, I'm willing to work on them.

Signed-off-by: Juraj Vijtiuk <juraj.vijtiuk@sartura.hr>

Test Plan:
* The patch has been tested with a Debug and MinSizeRel build, with
libssh unit tests, client tests and the pkd tests.
* All the tests have been run with valgrind's memcheck, drd and helgrind
tools.
* The examples/samplessh client works when built with the patch.

Reviewers: asn, aris

Subscribers: simonsj

Differential Revision: https://bugs.libssh.org/D1
2017-12-28 11:17:39 +01:00
Aris Adamantiadis
f818e63f8f Add new options
Pair-Programmed-With: Jakub Jelen <jjelen@redhat.com>
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2017-12-15 12:00:49 +01:00
Stef Walter
857ce2376e known_hosts: Add ssh_dump_knownhost() function
This works similarly to ssh_write_knownhost(), but allows the caller
to get a line with the known_hosts line.

BUG: https://red.libssh.org/issues/207

Signed-off-by: Stef Walter <stefw@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2016-11-05 17:12:07 +01:00
Fabiano Fidêncio
05fd0acf45 buffer: do not use ssh_buffer_get_rest_len()
As ssh_buffer_get_len() actually calls ssh_buffer_get_rest_len(), let's
just use the first one. This is a preparatory step for removing
ssh_buffer_get_rest_len().

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2016-01-19 11:31:08 +01:00
Fabiano Fidêncio
954341dd1f buffer: rename ssh_buffer_get_rest() to ssh_buffer_get()
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2016-01-19 11:31:07 +01:00
Fabiano Fidêncio
1102ea4c55 cleanup: use ssh_ prefix in the kex (non-static) functions
Having "ssh_" prefix in the functions' name will avoid possible clashes
when compiling libssh statically.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2016-01-19 11:31:07 +01:00
Fabiano Fidêncio
adc8c20ac1 cleanup: use ssh_ prefix in the buffer (non-static) functions
Having "ssh_" prefix in the functions' name will avoid possible clashes
when compiling libssh statically.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2016-01-19 11:31:07 +01:00
Fabiano Fidêncio
6f60449e18 cleanup: use ssh_ prefix in the bignum (non-static) functions
Having "ssh_" prefix in the functions' name will avoid possible clashes
when compiling libssh statically.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2016-01-19 11:31:07 +01:00
Andreas Schneider
bb18442fe8 options: Fix setting the port.
Make sure we correctly read the port from the config file.

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2014-12-25 12:32:16 +01:00
Aris Adamantiadis
c28ad814d0 knownhosts: resolve leaks found by coverity 2014-02-05 08:07:45 +01:00
Aris Adamantiadis
fdc660f313 knownhosts: detect variations of ecdsa 2014-02-04 22:28:30 +01:00
Aris Adamantiadis
c433ac02bd known_hosts: add ssh_knownhosts_algorithms()
Goal of that function is to test the preferred key exchange methods
based on what's available in the known_hosts file
2014-02-01 16:42:29 +01:00
Andreas Schneider
2fe59071b2 src: Do not use deprecated functions. 2014-01-16 15:27:46 +01:00
Andreas Schneider
6fe51b13fb src: Update my mail address. 2014-01-07 16:08:23 +01:00
Andreas Schneider
c64ec43eef src: Remove enter_function() and leave_function(). 2013-07-14 13:31:24 +02:00
Andreas Schneider
ebdd0c6ac1 src: Migrate to SSH_LOG. 2013-07-14 12:44:26 +02:00
Andreas Schneider
b8a3e5ffe3 known_hosts: Fix readablity. 2013-06-13 11:08:37 +02:00
Andreas Schneider
0295301928 known_hosts: Don't leak memory in ssh_write_knownhost error paths.
Found by Coverity.
2012-10-12 08:07:01 +02:00
Andreas Schneider
782b2e37c6 build: Fix missing struct in_addr warning. 2012-07-17 18:16:07 +02:00
Andreas Schneider
ee774479de session: Use a struct for all options. 2012-02-05 11:50:49 +01:00
Andreas Schneider
519291558d priv: Move options and config prototypes to own header. 2011-09-18 21:37:17 +02:00
Andreas Schneider
5581323c2c string: Use the struct and array for allocating the struct. 2011-09-08 15:50:39 +02:00
Andreas Schneider
09da9418cc known_hosts: Fix a free before last use. 2011-09-08 13:42:30 +02:00
Andreas Schneider
6d3d5a446e known_hosts: Fix a memleak. 2011-09-07 17:51:43 +02:00
Andreas Schneider
2e83cc925d known_hosts: Migrate ssh_write_knownhost() to new pki. 2011-09-05 11:28:19 +02:00
Andreas Schneider
2be90be740 known_hosts: Added a log message for key type mismatch. 2011-06-15 18:27:05 +02:00
Aris Adamantiadis
c5a998f47a [crypto] initial support for ecdh-sha2-nistp256
Works with openssl
Still requires work for libgcrypt and other modes
2011-06-13 13:46:34 +02:00
Aris Adamantiadis
338a3d9b05 Removed references to ssh_buffer_get_begin 2010-10-03 12:07:00 +02:00
Andreas Schneider
5f24a84298 known_hosts: Added missing include.
Thanks miloj ;)
2010-09-29 11:17:46 +02:00
Andreas Schneider
b391a7603a pki: Create a file for known_hosts functions. 2010-09-28 19:09:29 +02:00