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57 Commits

Author SHA1 Message Date
Andreas Schneider
c503bb572e crytpo: Make sure we check return of ssh_get_random() correctly 
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
 2018-07-05 12:12:14 +02:00
Jakub Jelen
d25b8fb550 packet: Avoid warnings by using correct template 
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2018-07-04 07:48:32 +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
Aris Adamantiadis
8a735d5eb7 chacha: packet decryption 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2018-06-28 09:06:30 +02:00
Aris Adamantiadis
d038c4dee7 chacha: packet encryption 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2018-06-28 09:06:30 +02:00
Aris Adamantiadis
0ad462102a packet: Add more debugging 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2018-06-04 16:55:21 +02:00
Andreas Schneider
2493e962fe packet: Fix fallthrough compiler warnings 
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
 2017-08-25 10:06:00 +02:00
Aris Adamantiadis
32eea120af sockets: Fix callback registration bug 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2016-05-02 17:34:09 +02:00
Aris Adamantiadis
8e42d3959c packet: Improve logging output 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2016-05-02 17:27:16 +02:00
Aris Adamantiadis
bbe437dbb1 callbacks: Implement list of callbacks for channels 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2016-05-02 16:56:54 +02:00
Aris Adamantiadis
80d88dd3d9 packets: Handle flow control callbacks 
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2016-05-02 16:55:46 +02:00
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
e368d01385 cleanup: use ssh_ prefix in the packet (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
Andreas Schneider
662217f409 packet: Check return value of ssh_buffer_unpack(). 
CID: 1230357

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Aris Adamantiadis <aris@0xbadc0de.be>
 2014-08-15 12:29:20 +02:00
Aris Adamantiadis
e9fd14c7f0 buffers: adapt packet.c to ssh_buffer_(un)pack() 
Reviewed-by: Andreas Schneider <asn@samba.org>
 2014-08-06 09:46:14 +02:00
Dirkjan Bussink
164b8e99cc Add logic to support SHA2 HMAC algorithms 
BUG: https://red.libssh.org/issues/91

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2014-04-22 10:56:46 +02:00
Gangadhar Sandrani
d6e6a453fc log: Fix log levels. 
Signed-off-by: Gangadhar Sandrani <gangadhar.sandrani@gmail.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2014-04-22 09:35:33 +02:00
Andreas Schneider
b3e6d5df53 packet: Fix function name. 2014-03-27 11:26:27 +01:00
Jon Simons
aa05248ca8 packet: elide two buffer_prepend calls into one 
In packet_send2, rather than issue two separate buffer_prepend_data calls
(each of which may entail realloc + memmove + memcpy), elide the prepend
work into a single buffer_prepend_data: the header information is computed
locally, and a single 5 byte prepend operation is now done instead of
prepending 1, then 4 bytes.

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2014-03-27 11:19:50 +01:00
Audrius Butkevicius
a277dd9277 Add session/channel byte/packet counters 
Signed-off-by: Audrius Butkevicius <audrius.butkevicius@elastichosts.com>
 2014-02-12 18:21:16 +01:00
Andreas Schneider
3e57b54688 packet: Improve readablity of packet decrypt. 
After discussion with Aris and it was not obvious enough to understand
the issue we decided to refactor it.

Reviewd-by: Aris Adamantiadis <aris@0xbadc0de.be>
 2014-02-06 20:30:29 +01:00
Alan Dunn
bb0023b7c7 packet: Do not decrypt zero length rest of buffer 
If we receive a packet of length exactly blocksize, then
packet_decrypt gets called on a buffer of size 0.  The check at the
beginning of packet_decrypt indicates that the function should be
called on buffers of at least one blocksize, though the check allows
through zero length.  As is packet_decrypt can return -1 when len is 0
because malloc can return NULL in this case: according to the ISO C
standard, malloc is free to return NULL or a pointer that can be freed
when size == 0, and uclibc by default will return NULL here (in
"non-glibc-compatible" mode).  The net result is that when using
uclibc connections with libssh can anomalously fail.

Alternatively, packet_decrypt (and probably packet_encrypt for
consistency) could be made to always succeed on len == 0 without
depending on the behavior of malloc.

Thanks to Josh Berlin for bringing conneciton failures with uclibc to
my attention.

Signed-off-by: Alan Dunn <amdunn@gmail.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2014-02-06 19:41:00 +01:00
Andreas Schneider
cb9786b3ae src: Rename buffer_add_data() to ssh_buffer_add_data(). 2014-01-19 20:55:55 +01:00
Andreas Schneider
9c4144689d src: Rename buffer_init to ssh_buffer_init(). 2014-01-19 20:43:29 +01:00
Aris Adamantiadis
aecd952d18 update copyright information 2014-01-07 15:18:15 +01:00
Andreas Schneider
75e61f498b packet: Remove logically dead code. 
CID #1128796
 2013-11-27 20:14:02 +01:00
Andreas Schneider
1972a27fe0 packet: Remove dead code. 2013-11-14 11:43:49 +01:00
Andreas Schneider
097760db17 packet: Set the packet to the processed data position. 
Else we could end up with packet - current_macsize if to_be_read is 0.
 2013-11-14 11:42:21 +01:00
Andreas Schneider
387e26c837 packet: Refactor ssh_packet_socket_callback(). 
Make error checking more readable and add additional NULL checks.
 2013-11-09 13:10:41 +01:00
Andreas Schneider
da1eaea51a gassapi: Fix check if it is enabled. 2013-07-22 10:42:30 +02:00
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
Aris Adamantiadis
ad92740dc3 server: Fix compilation without WITH_SERVER 2013-07-14 09:30:59 +02:00
Andreas Schneider
1663917f71 cmake: Make GSSAPI optional. 2013-07-13 15:48:49 +02:00
Aris Adamantiadis
7cb6b15aaa auth: implement client-side gssapi 
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2013-07-13 14:41:20 +02:00
Aris Adamantiadis
3b52e38a33 auth: adapt libssh to gssapi-with-mic server 
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
 2013-07-13 14:21:36 +02:00
Andreas Schneider
6dae8baefc src: Add fall trough comments. 2013-06-18 17:17:23 +02:00
Andreas Schneider
ee47cab548 packet: Fix a possible segfault. 2013-06-17 13:04:27 +02:00
Andreas Schneider
41269874f5 packet: Check return values of buffer functions. 
Found by Coverity.
 2012-10-09 11:09:34 +02:00
Andreas Schneider
dc8103925c packet: Fix a possible segfault. 2012-10-05 11:12:13 +02:00
Andreas Schneider
782b2e37c6 build: Fix missing struct in_addr warning. 2012-07-17 18:16:07 +02:00
Andreas Schneider
3888a050f8 packet: Make default_packet_handlers static. 
Fixes sparse warnings.
 2012-02-19 13:26:02 +01:00
Andreas Schneider
ce26b8d777 packet: Use a define for the macsize. 2011-11-09 10:13:26 +01:00
Aris Adamantiadis
c340192144 packet: cleaner logs with less redundant info 2011-10-03 13:52:19 +03:00
Andreas Schneider
6859e4f4ec build: Fix zlib support. 2011-09-23 22:57:21 +02:00
Andreas Schneider
dc42a1757f gzip: Fix zlib support. 2011-09-18 21:37:18 +02:00
Andreas Schneider
fb0f125351 packet: Don't (de)compress empty buffers. 
This fixes bug #50.
 2011-06-11 13:15:46 +02:00
Aris Adamantiadis
7ff69d9c48 packet: Abort session on fatal errors on packets 2011-06-09 23:27:41 +02:00