From 8dc954a4e7931c07051ce22f8446d6e5dfb9ce7d Mon Sep 17 00:00:00 2001 From: Dave Barach Date: Wed, 5 Feb 2020 17:31:09 -0500 Subject: vlib: add plugin override support Allow a plugin to override (suppress loading of) other plugins. This mechanism allows a developer to prevent specific plugins from being loaded. To do so, provide an "overrides" list in the plugin definition: VLIB_PLUGIN_REGISTER () = { .overrides = "avf_plugin.so,ioam_plugin.so,dpdk_plugin.so", }; or some such. Simply list the plugins in question as shown above. The .overrides structure member is limited to 256 octets. The named .elf section mechanism used to discover the vlib_plugin_registration_t's precludes the use of a variable-length array of strings. Use the vlib log to eliminate plugin and built-in vat plugin loader console spew. Added vlib_log_register_class_rate_limit(...) to allow procedural configuration of the log rate-limit. We *never* want to rate-limit plugin loader messages. Type: feature Signed-off-by: Dave Barach Change-Id: I0a9327b8cf5508482f057342783252112cb44170 --- src/vlib/unix/plugin.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/vlib/unix/plugin.h') diff --git a/src/vlib/unix/plugin.h b/src/vlib/unix/plugin.h index 2a238279401..30039c54d65 100644 --- a/src/vlib/unix/plugin.h +++ b/src/vlib/unix/plugin.h @@ -61,6 +61,7 @@ typedef CLIB_PACKED(struct { u8 default_disabled; const char version[32]; const char version_required[32]; + const char overrides[256]; const char *early_init; const char *description; }) vlib_plugin_registration_t; @@ -91,6 +92,7 @@ typedef struct /* loaded plugin info */ plugin_info_t *plugin_info; uword *plugin_by_name_hash; + uword *plugin_overrides_by_name_hash; /* paths and name filters */ u8 *plugin_path; @@ -103,6 +105,9 @@ typedef struct plugin_config_t *configs; uword *config_index_by_name; + /* Plugin log, avoid filling syslog w/ junk */ + vlib_log_class_t logger; + /* usual */ vlib_main_t *vlib_main; } plugin_main_t; -- cgit 1.2.3-korg