* use dynamic logger in RDG
* honor [MS-TSGU] 2.2.9.2.1.5.2 TSG_REDIRECTION_FLAGS
* honor [MS-TSGU] 2.2.10.16 HTTP_TUNNEL_AUTH_RESPONSE
HTTP_TUNNEL_AUTH_RESPONSE_FIELD_REDIR_FLAGS flag
* add setting GatewayIgnoreRedirectionPolicy to ignore the gateway
policy if desired
This PR creates a new /gateway:type:arm transport.
It depends on CJSON
The arm transport is not a transport by itself but is responsible
for getting the websocket endpoint from a configuration url derived from
the configured gateway host in the rdpw file or cmdline
* factor out most websocket specific code parts into websocket.c
* create wst.c (Websocket Transport) as gateway transport implementation
* introduce GatewayUrl setting that holds the websocket url
* introduce GatewayHttpExtAuthBearer that holds the HTTP Bearer
* GatewayHttpExtAuthBearer can be used by both rdg and wst
This PR adds a few changes so that a client is able to change the
authentication/logon type in the Authentication callback. I.e. if the
client was started without user/domain the authentication callback is
now able to activate smart card logon by setting the SmartcardLogon
setting along with csp/container/reader name.
Currently if the authentication callback returns `FALSE` the utils
function handle this as scenario as no credentials provided (returns
`AUTH_NO_CREDENTIALS)`.
This PR introduces a new `auth_status` called `AUTH_CANCELLED` that is
returned if the authentication callback returns `FALSE`. If the callback
returns `TRUE` and username or password are empty the util function will
continue to return `AUTH_NO_CREDENTIALS`.
THe PR also fixes some incorrect returns in RPC over HTTP gateway code.
* Use new ConvertUtf8ToWChar, ConvertUtf8NToWChar,
ConvertUtf8ToWCharAlloc and ConvertUtf8NToWCharAlloc
* Use new ConvertWCharToUtf8, ConvertWCharNToUtf8,
ConvertWCharToUtf8Alloc and ConvertWCharNToUtf8Alloc
* Use new Stream UTF16 to/from UTF8 read/write functions
* Use new settings UTF16 to/from UTF8 read/write functions
It seems MS RDG 2016+ does not send a http status code if
something with the request or configuration is not ok. It is worth
retrying with rpc in that case
Gateway code was passing a char string as the package name to
`credssp_auth_init`. When using Unicode builds this fails since
`QuerySecurityPackageInfo` expects a wchar string.
Additionally with unicode builds, `credssp_auth_pkg_name` causes string
type mismatches in the gateway code where a char string is expected.
* Ensure negoToken is cleaned up in nla_free
* Renamed function credssp_auth_take_input_buffer now invalidates
input buffer an takes ownership of that buffer
