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authorDamjan Marion <damarion@cisco.com>2017-01-23 21:13:45 +0100
committerDave Wallace <dwallacelf@gmail.com>2017-02-03 14:08:47 +0000
commit3b46cba8f4e909bc363403c6c92215159abb2f11 (patch)
treed3d40532a31794a3e521e55a5390e26259115914 /src/vlib/unix/plugin.h
parent2ae991e27afb3fe2944dd4f60eb2b03f29365c95 (diff)
Plugin infrastructure improvements
This patch replaces requirement for vlib_plugin_register function in the plugin so file and introduces new macro: VLIB_PLUGIN_REGISTER () = { .version = "version string", .version_required = "requred version", .default_disabled = 1, .early_init = "early_init_function_name", }; Plugin will nor be loaded if .default_disabled is set to 1 unless explicitely enabled in startup.conf. If .verstion_required is set, plugin will not be loaded if there is version mismatch between plugin and vpp. This can be bypassed by setting "skip-version-check" for specific plugin. If .early-init string is present, plugin loader will try to resolve this specific symbol in the plugin namespace and make a function call. Following startup.conf configuration is added: plugins { path /path/to/plugin/directory plugin ila_plugin.so { enable skip-version-check } plugin acl_plugin.so { disable } } Change-Id: I706c691dd34d94ffe9e02b59831af8859a95f061 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/unix/plugin.h')
-rw-r--r--src/vlib/unix/plugin.h31
1 files changed, 28 insertions, 3 deletions
diff --git a/src/vlib/unix/plugin.h b/src/vlib/unix/plugin.h
index 1c74cdd241b..01fec3564fc 100644
--- a/src/vlib/unix/plugin.h
+++ b/src/vlib/unix/plugin.h
@@ -56,7 +56,14 @@
* vlib_load_new_plugins().
*/
-
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct {
+ u8 default_disabled;
+ const char version[32];
+ const char version_required[32];
+ const char *early_init;
+}) vlib_plugin_registration_t;
+/* *INDENT-ON* */
typedef struct
{
@@ -64,10 +71,22 @@ typedef struct
u8 *filename;
struct stat file_info;
void *handle;
+
+ /* plugin registration */
+ vlib_plugin_registration_t *reg;
+ char *version;
} plugin_info_t;
typedef struct
{
+ char *name;
+ u8 is_disabled;
+ u8 is_enabled;
+ u8 skip_version_check;
+} plugin_config_t;
+
+typedef struct
+{
/* loaded plugin info */
plugin_info_t *plugin_info;
uword *plugin_by_name_hash;
@@ -76,8 +95,9 @@ typedef struct
u8 *plugin_path;
u8 *plugin_name_filter;
- /* handoff structure get callback */
- void *handoff_structure_get_cb;
+ /* plugin configs and hash by name */
+ plugin_config_t *configs;
+ uword *config_index_by_name;
/* usual */
vlib_main_t *vlib_main;
@@ -85,10 +105,15 @@ typedef struct
extern plugin_main_t vlib_plugin_main;
+clib_error_t *vlib_plugin_config (vlib_main_t * vm, unformat_input_t * input);
int vlib_plugin_early_init (vlib_main_t * vm);
int vlib_load_new_plugins (plugin_main_t * pm, int from_early_init);
void *vlib_get_plugin_symbol (char *plugin_name, char *symbol_name);
+#define VLIB_PLUGIN_REGISTER() \
+ vlib_plugin_registration_t vlib_plugin_registration \
+ __attribute__((__section__(".vlib_plugin_registration")))
+
#endif /* __included_plugin_h__ */
/*