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gio: make client connection work with EXTERNAL on win32

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D-Bus reference implementation doesn't require more than the claimed
process SID as part of the AUTH initial data for EXTERNAL.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Marc-André Lureau 2022-01-12 17:43:46 +04:00
parent e66b9489b7
commit 7d7b52edbd
1 changed files with 22 additions and 5 deletions
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27
gio/gdbusauthmechanismexternal.c
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@ -29,6 +29,10 @@
#include "glibintl.h"
#ifdef G_OS_WIN32
#include "gwin32sid.h"
#endif
struct _GDBusAuthMechanismExternalPrivate
{
gboolean is_client;
@ -124,11 +128,17 @@ static gboolean
mechanism_is_supported (GDBusAuthMechanism *mechanism)
{
g_return_val_if_fail (G_IS_DBUS_AUTH_MECHANISM_EXTERNAL (mechanism), FALSE);
#if defined(G_OS_WIN32)
/* all that is required is current process SID */
return TRUE;
#else
/* This mechanism is only available if credentials has been exchanged */
if (_g_dbus_auth_mechanism_get_credentials (mechanism) != NULL)
return TRUE;
else
return FALSE;
#endif
}
static gint
@ -329,32 +339,39 @@ mechanism_client_initiate (GDBusAuthMechanism *mechanism,
{
GDBusAuthMechanismExternal *m = G_DBUS_AUTH_MECHANISM_EXTERNAL (mechanism);
gchar *initial_response = NULL;
#if defined(G_OS_UNIX)
GCredentials *credentials;
#endif
g_return_val_if_fail (G_IS_DBUS_AUTH_MECHANISM_EXTERNAL (mechanism), NULL);
g_return_val_if_fail (!m->priv->is_server && !m->priv->is_client, NULL);
m->priv->is_client = TRUE;
m->priv->state = G_DBUS_AUTH_MECHANISM_STATE_ACCEPTED;
m->priv->state = G_DBUS_AUTH_MECHANISM_STATE_REJECTED;
*out_initial_response_len = 0;
/* return the uid */
#if defined(G_OS_UNIX)
credentials = _g_dbus_auth_mechanism_get_credentials (mechanism);
g_assert (credentials != NULL);
/* return the uid */
#if defined(G_OS_UNIX)
initial_response = g_strdup_printf ("%" G_GINT64_FORMAT, (gint64) g_credentials_get_unix_user (credentials, NULL));
*out_initial_response_len = strlen (initial_response);
#elif defined(G_OS_WIN32)
initial_response = _g_win32_current_process_sid_string (NULL);
#else
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic warning "-Wcpp"
#warning Dont know how to send credentials on this OS. The EXTERNAL D-Bus authentication mechanism will not work.
#pragma GCC diagnostic pop
#endif
m->priv->state = G_DBUS_AUTH_MECHANISM_STATE_REJECTED;
#endif
if (initial_response)
{
m->priv->state = G_DBUS_AUTH_MECHANISM_STATE_ACCEPTED;
*out_initial_response_len = strlen (initial_response);
}
return initial_response;
}