Commit Graph

14 Commits

Author SHA1 Message Date
Frediano Ziglio
72d095ac8c red-stream: Handle reading of 0 bytes in red_stream_async_read
Currently red_stream_async_read cannot handle read of 0 bytes.
This would cause a wrong assert in async_read_handler.
Fixing the assert would just make the code wrongly detect a
disconnection (usually a return of 0 from read is handled that
way but happens also if you try to read 0 bytes).
Current callers of these function does not pass 0 as size however
handling data protocols having data_length+data this can happen
and is handled manually in red_sasl_handle_auth_steplen.
Avoid needing manually to check for this condition.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe de Dinechin <dinechin@redhat.com>
2018-01-30 15:06:03 +00:00
Frediano Ziglio
5998e34ffb red-stream: Remove AsyncRead::stream
AsyncRead is always included in RedStream and there are only
a possible operation pending on a RedStream.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-16 14:11:16 +00:00
Frediano Ziglio
233f710ba9 red-stream: Reuse red_stream_disable_writev function
The same function is used to reset writev field in SASL code.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-16 12:41:13 +00:00
Frediano Ziglio
6c416f5098 red-stream: Encapsulate all authentication state in RedSASLAuth
Instead of having half state in RedSASL and half in RedSASLAuth
move everything in RedSASLAuth. This also reduces memory usage
when we are using SASL but we finish the authentication step.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-09 17:06:11 +00:00
Frediano Ziglio
cb70583e5c red-stream: Unify start and step passes
Most of these function are identical.
Only difference were basically debugging message but now
with a proper tests are less important.
The mechname field is used to differentiate between first step and
following ones.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-09 17:06:08 +00:00
Frediano Ziglio
5c516a6e42 red-stream: Handle properly endianness in SASL code
All SPICE protocol is little endian, there's no agreement on other
endian and currently we support only little endian so make sure
this will work even possibly running on a big endian machine.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-09 17:06:06 +00:00
Frediano Ziglio
5c438510cd Handle SASL initialisation mainly in red-stream.c
Asynchronous code jumping from a file to another is tedious to read
also having code handling the same stuff in two files does not look
a good design.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-09 17:06:04 +00:00
Frediano Ziglio
7362882993 red-stream: Avoid infinite loop on sasl_encode/decode failure
These functions do not set errno so it is possible that errno has a
stale value which happens to be EAGAIN.
This would cause an infinite loop in functions like red_stream_write_all
(or potentially using the event loop).

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2018-01-04 20:08:17 +00:00
Frediano Ziglio
cb099522bf red-stream: Avoid to specify 2 mech names during SASL
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Snir Sheriber <ssheribe@redhat.com>
2018-01-02 11:39:36 +00:00
Frediano Ziglio
f3be28fb5e red-stream: Simplify mechname matching
Avoid over complicated matching using quoting and a simple strstr
operation.
The mech names are separated and quoted with the same chararacter (',')
making possible to search for ",MECHNAME," instead of manually check for
prefix and suffix after the search for "MECHNAME".

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Snir Sheriber <ssheribe@redhat.com>
2018-01-02 11:39:15 +00:00
Frediano Ziglio
f7ca5d4a15 red-stream: Use mechname for mechname
There's no reason to copy mechname into mechlist to use mechlist
instead of mechname.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2017-12-19 16:55:13 +00:00
Frediano Ziglio
a7b8ea4b7a red-stream: Remove SASL "data" field leak
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
2017-12-19 16:55:11 +00:00
Uri Lublin
49234be2dd red-stream: fix build without SASL
put red_stream_disable_writev in an #ifdef HAVE_SASL block.
red_stream_disable_writev is only called from functions
that are already in an #ifdef HAVE_SASL block.

Currently when building with SASL disabled, I get:
  CC       red-stream.lo
red-stream.c:441:13: error: 'red_stream_disable_writev'
           defined but not used [-Werror=unused-function]

Signed-off-by: Uri Lublin <uril@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-11-27 10:13:11 +00:00
Jonathon Jongsma
a5aa2a2261 Use standard "Red" namespace
The objects RedsStream and RedsSASL are currently using the namespace
"Reds" rather than the standard "Red" namespace used throughout the rest
of the project. Change these to be consistent. This also means changing
method names and some related enumeration types.

The files were also renamed to reflect the change:
  reds-stream.[ch] -> red-stream.[ch]

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
2017-10-21 08:47:02 +01:00