From: Emil Velikov <[email protected]>
As a whole all plugins should be built-in, otherwise they would be using
internal, undocumented, unversioned, unstable API.
Flesh out the external plugin support and simplify the normal path.
Guard the external plugin support behind a runtime check, which will be
dead-code eliminated in the default case.
---
Makefile.am | 4 ---
src/btd.h | 2 +-
src/plugin.c | 92 +++++++++++++++++++++++++++++++++++++-----------------------
src/plugin.h | 4 +++
4 files changed, 62 insertions(+), 40 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index 9e35d7fd9..2d5650ced 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -51,11 +51,7 @@ EXTRA_DIST += src/org.bluez.service
plugindir = $(libdir)/bluetooth/plugins
-if MAINTAINER_MODE
-build_plugindir = $(abs_top_srcdir)/plugins/.libs
-else
build_plugindir = $(plugindir)
-endif
if MANPAGES
man_MANS =
diff --git a/src/btd.h b/src/btd.h
index b7e7ebd61..7166e2168 100644
--- a/src/btd.h
+++ b/src/btd.h
@@ -155,7 +155,7 @@ struct btd_opts {
extern struct btd_opts btd_opts;
-gboolean plugin_init(const char *enable, const char *disable);
+void plugin_init(const char *enable, const char *disable);
void plugin_cleanup(void);
void rfkill_init(void);
diff --git a/src/plugin.c b/src/plugin.c
index 2a29a888e..b6a84299a 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -26,6 +26,8 @@
#include "src/log.h"
#include "src/btd.h"
+#define IS_ENABLED(x) (x)
+
static GSList *plugins = NULL;
struct bluetooth_plugin {
@@ -42,7 +44,7 @@ static int compare_priority(gconstpointer a, gconstpointer b)
return plugin2->desc->priority - plugin1->desc->priority;
}
-static gboolean add_plugin(void *handle,
+static gboolean add_external_plugin(void *handle,
const struct bluetooth_plugin_desc *desc)
{
struct bluetooth_plugin *plugin;
@@ -72,6 +74,21 @@ static gboolean add_plugin(void *handle,
return TRUE;
}
+static void add_plugin(const struct bluetooth_plugin_desc *desc)
+{
+ struct bluetooth_plugin *plugin;
+
+ DBG("Loading %s plugin", desc->name);
+
+ plugin = g_try_new0(struct bluetooth_plugin, 1);
+ if (plugin == NULL)
+ return;
+
+ plugin->desc = desc;
+
+ plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
+}
+
static gboolean enable_plugin(const char *name, char **cli_enable,
char **cli_disable)
{
@@ -98,48 +115,23 @@ static gboolean enable_plugin(const char *name, char **cli_enable,
return TRUE;
}
-#include "src/builtin.h"
-gboolean plugin_init(const char *enable, const char *disable)
+static void external_plugin_init(char **cli_disabled, char **cli_enabled)
{
- GSList *list;
GDir *dir;
const char *file;
- char **cli_disabled, **cli_enabled;
- unsigned int i;
-
- /* Make a call to BtIO API so its symbols got resolved before the
- * plugins are loaded. */
- bt_io_error_quark();
-
- if (enable)
- cli_enabled = g_strsplit_set(enable, ", ", -1);
- else
- cli_enabled = NULL;
-
- if (disable)
- cli_disabled = g_strsplit_set(disable, ", ", -1);
- else
- cli_disabled = NULL;
-
- DBG("Loading builtin plugins");
-
- for (i = 0; __bluetooth_builtin[i]; i++) {
- if (!enable_plugin(__bluetooth_builtin[i]->name, cli_enabled,
- cli_disabled))
- continue;
- add_plugin(NULL, __bluetooth_builtin[i]);
- }
+ info("Using external plugins is not officially supported.\n");
+ info("Consider upstreaming your plugins into the BlueZ project.");
if (strlen(PLUGINDIR) == 0)
- goto start;
+ return;
DBG("Loading plugins %s", PLUGINDIR);
dir = g_dir_open(PLUGINDIR, 0, NULL);
if (!dir)
- goto start;
+ return;
while ((file = g_dir_read_name(dir)) != NULL) {
const struct bluetooth_plugin_desc *desc;
@@ -174,13 +166,45 @@ gboolean plugin_init(const char *enable, const char *disable)
continue;
}
- if (add_plugin(handle, desc) == FALSE)
+ if (add_external_plugin(handle, desc) == FALSE)
dlclose(handle);
}
g_dir_close(dir);
+}
+
+#include "src/builtin.h"
+
+void plugin_init(const char *enable, const char *disable)
+{
+ GSList *list;
+ char **cli_disabled = NULL;
+ char **cli_enabled = NULL;
+ unsigned int i;
+
+ /* Make a call to BtIO API so its symbols got resolved before the
+ * plugins are loaded. */
+ bt_io_error_quark();
+
+ if (enable)
+ cli_enabled = g_strsplit_set(enable, ", ", -1);
+
+ if (disable)
+ cli_disabled = g_strsplit_set(disable, ", ", -1);
+
+ DBG("Loading builtin plugins");
+
+ for (i = 0; __bluetooth_builtin[i]; i++) {
+ if (!enable_plugin(__bluetooth_builtin[i]->name, cli_enabled,
+ cli_disabled))
+ continue;
+
+ add_plugin(__bluetooth_builtin[i]);
+ }
+
+ if IS_ENABLED(EXTERNAL_PLUGINS)
+ external_plugin_init(cli_enabled, cli_disabled);
-start:
for (list = plugins; list; list = list->next) {
struct bluetooth_plugin *plugin = list->data;
int err;
@@ -201,8 +225,6 @@ start:
g_strfreev(cli_enabled);
g_strfreev(cli_disabled);
-
- return TRUE;
}
void plugin_cleanup(void)
diff --git a/src/plugin.h b/src/plugin.h
index 8d0903f2d..b484ed378 100644
--- a/src/plugin.h
+++ b/src/plugin.h
@@ -28,6 +28,7 @@ struct bluetooth_plugin_desc {
#name, version, priority, init, exit \
};
#else
+#if EXTERNAL_PLUGINS
#define BLUETOOTH_PLUGIN_DEFINE(name, version, priority, init, exit) \
extern struct btd_debug_desc __start___debug[] \
__attribute__ ((weak, visibility("hidden"))); \
@@ -40,4 +41,7 @@ struct bluetooth_plugin_desc {
#name, version, priority, init, exit, \
__start___debug, __stop___debug \
};
+#else
+#error "Requested non built-in plugin, while external plugins is disabled"
+#endif
#endif
--
2.43.0