Commit Graph

1193 Commits

Author SHA1 Message Date
Ahsen Kamal
e2b89dec9d rename discon_msg to peer_discon_msg
Signed-off-by: Ahsen Kamal <itsahsenkamal@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2023-03-06 19:02:03 +01:00
Jakub Jelen
2539d72b7c Add support for PKCS#11 provider in OpenSSL 3.0
The engine API in OpenSSL 3.0 is deprecated so we are in the progress of working
on a PKCS#11 provider for OpenSSL. This commit introduces a conditional build
with the pkcs11-provider support (instead of engines) with all the changes
required for the provider to work with existing code and tests.

The CI modification is only temporary before we will have the real package in
Fedora or somewhere to use.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
2023-03-01 11:35:28 +01:00
Mohammad Shehar Yaar Tausif
a3a13eb3a8 Remove support for DSA Keys
Solving issue #110. The original work is at !231
Some changes were needed because the newly added features in master through time

Signed-off-by: Mohammad Shehar Yaar Tausif <sheharyaar48@gmail.com>
Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2023-02-02 14:49:06 +01:00
Norbert Pocs
9931f158e0 server: Add documentation to some functions
Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2023-02-01 15:26:02 +01:00
Norbert Pocs
b7c1f792cc documentation: Fix Missing param doxygen warnings
Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2023-02-01 15:26:02 +01:00
Jakub Jelen
1eb3df5254 Get rid of the deprecated OpenSSL API
It turns out there is a way to get the uncompressed format from the low-level
API, which is not (yet?) deprecated so this removes all of the TODO's for ECDSA
keys and moves the EC_KEY structure in the high-level EVP_PKEY.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
2023-01-25 16:53:19 +01:00
Jakub Jelen
02fda2ef80 Remove needless ifdefs for Ed25519 support ...
... through bundled code with OpenSSL. These were needed with older OpenSSL
versions before 1.1.1.
After removal in 358ce46551 these were just static
ifdef so this will simplify the code.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
2023-01-25 16:53:19 +01:00
Jakub Jelen
ab24110ae0 Do not build the PKCS#11 when disabled
This prevents building the pkcs11-related functions and printing pkcs11-related
log messages when the libssh is built without PKCS#11 support.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
2023-01-25 16:53:19 +01:00
Jakub Jelen
a5631280a9 include: Document the need to free the returned buffer
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
2023-01-09 22:40:10 +01:00
Andreas Schneider
edcce095e0 Happy new year 2023!
And happy anniversary libssh (20 years).

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2023-01-09 09:06:38 +01:00
Tom Deseyn
f297dc6ab8 Add callbacks for channel open response, and channel request response.
Signed-off-by: Tom Deseyn <tom.deseyn@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2023-01-02 16:29:55 +01:00
Norbert Pocs
54c1703cb2 Move old DSA and RSA structs into EVP_PKEY
For code simplification and less ifdefs removing DSA and RSA
structures of the old openssl api and using the new EVP_PKEY
api to store the legacy keys.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-12-20 10:07:27 +01:00
Norbert Pocs
1bd499febb Add flags for escape expand operation
Calling `ssh_options_apply` more times can result in an unwanted behaviour of
expanding the escape characters more times. Adding flags to check if the
expansion was already done on the current string variables.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-29 14:58:05 +01:00
Norbert Pocs
1ff893c914 Add a placehohlder for non-expanded identities
Expanding a string twice could lead to unwanted behaviour.
This solution creates a ssh_list (`opts.identites_non_exp`) to store the strings
before expansion and by using ssh_apply it moves the string to the
`opts.identities`. This way the expanded strings are separated.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-29 14:58:03 +01:00
Norbert Pocs
4cd58350a8 Fix memory leaks of bignums when openssl >= 3.0
The openssl 3.0 support has introduced some memory leaks at key build as
OSSL_PARAM_BLD_push_BN duplicates the bignum and does not save the pointer
itself.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-29 14:16:01 +01:00
Norbert Pocs
01e9341d10 options.c: Add support for openssh config +,-,^
These features allow for options Ciphers, HostKeyAlgorithms, KexAlgorithms and
MACs to append, remove and prepend to the default list of algorithms
respectively

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-18 20:28:32 +01:00
Norbert Pocs
039d1b2775 kex: Add functions for openssh +,-,^ features
The funcions can:
- add a list to the default list
- remove a list from the default list
- prepend a list to the default list

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-18 20:28:30 +01:00
Norbert Pocs
61218df5d5 tokens: Add low-level function to exlclude, prepend lists
These functions are needed for openssh -,^ features.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-18 20:28:28 +01:00
Norbert Pocs
23cebfadea libcrypto.c: Change function parameter name
"new" is a c++ keyword which will make the build fail.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-02 12:17:21 +01:00
Norbert Pocs
9d429eda93 pki_ed25519_common.c: Change function parameter name
"new" is a c++ keyword which will make the build fail.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-02 12:17:21 +01:00
Norbert Pocs
34baecf49a misc.c/h: Change function parameter name
"template" is a c++ keyword which will make the build fail.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-02 12:09:03 +01:00
Norbert Pocs
d1947b55ec Add external c declaration for c++
To make sure c++ name mangling works correctly c code should be noted "extern"

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-11-02 12:08:53 +01:00
Jakub Jelen
06a0a957c9 bind: Set socket connected after accepting connection
Also factor out the operation to the single place. Original patch drafted by
Zekun Ni in the following issue:

https://gitlab.com/libssh/libssh-mirror/-/issues/155

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-11-02 12:07:18 +01:00
Norbert Pocs
358ce46551 Remove HAVE_OPENSSL_ED25519 ifdefs
ED25519 is implicitly included in new (>1.1.1) openssl version, no need
to check it explicitly.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-10-31 16:33:44 +01:00
Jakub Jelen
367be19990 sftp: Add comment about limitation of sftp_setstat
Fixes: #138

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2022-10-12 13:51:02 +02:00
Jakub Jelen
97c9ac2f58 Fix various spelling issues reported by codespell
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2022-10-12 13:50:38 +02:00
Jeroen Ooms
78978dc6ce Support SSH_SUPPRESS_DEPRECATED
Signed-off-by: Jeroen Ooms <jeroenooms@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-10-12 12:12:03 +02:00
Xiang Xiao
b53d0608b6 fix printf format warning
uint32_t should be formated by PRI?32

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Change-Id: I811cfd764010f9e8bb599b370155ac065ee1905c
2022-10-12 11:50:45 +02:00
Norbert Pocs
20d9642c4c libssh.h: Update loglevel doc
Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-10-07 09:13:19 +02:00
Linus Kardell
26895498fb Implement IdentitiesOnly
Signed-off-by: Linus Kardell <linus.kardell@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-09-22 12:31:48 +02:00
Andreas Schneider
915df08058 kdf: Avoid endianess issues
The key_type is only a letter, if we use and `int` and then cast it to
(const char *) we will end up with a 0 value on big endian.

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2022-09-07 14:37:29 +02:00
Andreas Schneider
20406e51c9 misc: Fix format truncation in ssh_path_expand_escape()
error: ‘%u’ directive output may be truncated writing between 1 and 10
bytes into a region of size 6.

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-08-26 14:09:56 +02:00
Timo Rothenpieler
17aec429f5 misc: rename gettimeofday symbol
mingw does have this function, even though it appears to be deprecated.
So the symbol has to have a different name, or linking becomes
impossible.

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-08-25 14:48:15 +02:00
Jakub Jelen
a81e78aff4 pki: Rework handling of EVP_PKEYs in OpenSSL backend
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2022-08-25 14:43:31 +02:00
Jakub Jelen
0800618f32 Initialize pkcs11 engine only once
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2022-08-25 14:43:31 +02:00
Jakub Jelen
382ff38caa pki: Factor out the backend-specifics from cleaning the key structure
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
2022-08-25 14:43:31 +02:00
Andreas Schneider
6a25f07777 pki: Fix building pki_ed25519.c with libgcrypt
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-07-08 09:09:14 +02:00
Norbert Pocs
20c13a2c76 Change const bignum to bignum
Openssl3.0 API retrieves bignum variables from a key.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-07-07 08:39:39 +02:00
Norbert Pocs
a9dddd89aa Use EVP_PKEY as a key type in key structs
Merge multiple key variables into one variable.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-07-07 08:39:39 +02:00
Norbert Pocs
debd0ea4d3 Update HMAC function parameter type
New openssl API, libmbedtls, libgcrypt use size_t for
HMAC len pameter.

New helper functions were added in libcrypto.c to avoid
code duplication. (the header pki.h is needed for this
reason)

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-07-07 08:39:39 +02:00
Norbert Pocs
face3aadb4 Add constant SSH_ERRNO_MSG_MAX
Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-07-04 11:55:40 +02:00
Norbert Pocs
738cedb8be Add ssh_strerror function
- strerror_r for linux
- strerror_s for windows

Keep in mind that strerror_r has two versions:
- XSI
- GNU
see manpage for more information

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-07-04 11:55:40 +02:00
omsheladia
e0985fc0b4 client: Add ssh_session_set_disconnect_message()
Fix #98 by adding 'ssh_session_set_disconnect_message' Whenever the ssh
session disconnects a "Bye Bye" message was set and displayed. Now the
peer has a choice to set a customised message to be sent after the
session is disconnected. The default "Bye Bye" will be set if this
function is not called or not called correctly. The testcases in
tests/server/torture_server can also demonstrate how this function
works.

Signed-off-by: Om Sheladia <omsheladia10@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-07-02 07:04:48 +02:00
Seung Min Park
4978f30320 Add ssh_send_issue_banner() API
Signed-off-by: Seung Min Park <smpark@pnpsecure.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-07-02 07:04:48 +02:00
Wez Furlong
51a53cc6d4 add support for identityagent ssh_config option
This commit adds an `agent_socket` field to the session options
and connects the config parser to that option.

`SSH_OPTIONS_IDENTITY_AGENT` is added to allow applications to
set this option for themselves.

agent.c is updated to take the `agent_socket` value in preference
to the `SSH_AUTH_SOCK` environment variable.

Signed-off-by: Wez Furlong <wez@fb.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-06-22 13:56:14 +02:00
Wez Furlong
899ec9e519 Enable ssh agent authentication on Windows
Windows has supported unix domain sockets for a couple of years
now; see this article for more information about that:
<https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/>

This commit allows libssh to consider using agent authentication
on Windows systems.

It is mostly removing `#ifndef _WIN32` that prevented the unix
domain socket code from being compiled in, and adjusting the use
of `read(2)` and `write(2)` to `recv(2)` and `send(2)`, as the former
functions are not compatible with sockets on Windows systems.

For mingw systems, afunix.h isn't available so we use the
technique as was used to resolve building with mingw as used
by the curl project in: https://github.com/curl/curl/pull/5170

Signed-off-by: Wez Furlong <wez@fb.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
2022-06-22 13:56:14 +02:00
Andreas Schneider
7bcc2d83a4 packet: Fix ssh_packet_socket_callback() return value
According to the documentation the return value is the number of
processed bytes, so the returned value is never negative. We should not
use ssize_t in public headers as it isn't available on Windows! We only
have it defined in priv.h!

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-06-22 12:28:30 +02:00
Andreas Schneider
2ba4b51e0f include: Add missing include for ssh_socket_callbacks_struct
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-06-22 12:28:30 +02:00
Andreas Schneider
a889527c1b libsshpp: Fix openForward to not set sourcehost to NULL by default
This parameter is required.

Fixes #25

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-06-15 16:19:56 +02:00
Norbert Pocs
442599f0d1 Fix type mismatch warnings
Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
2022-06-15 14:47:06 +02:00