@@ -86,6 +86,7 @@ enum opt_vals {
enum optimization_feature {
OPTIMIZE_UNDEFINED,
+ OPTIMIZE_HELP,
OPTIMIZE_REMOVE_DEPENDENCIES,
};
@@ -315,11 +316,18 @@ static const struct {
static const struct {
const char *name;
+ const char *help;
enum optimization_feature level;
enum nft_optimization_flags flag;
} optimization_param[] = {
+ {
+ .name = "help",
+ .help = "",
+ .level = OPTIMIZE_HELP,
+ },
{
.name = "remove-dependencies",
+ .help = "ruleset listing with redundant expressions removed",
.level = OPTIMIZE_REMOVE_DEPENDENCIES,
.flag = NFT_OPTIMIZATION_F_REMOVE_DEPS,
},
@@ -372,6 +380,7 @@ static bool nft_options_check(int argc, char * const argv[])
static void optimize_settings_set_custom(struct nft_ctx *ctx, char *options)
{
+ unsigned int default_flags = ctx->optimization_flags;
unsigned int i;
char *end;
@@ -401,7 +410,21 @@ static void optimize_settings_set_custom(struct nft_ctx *ctx, char *options)
switch (level) {
case OPTIMIZE_UNDEFINED:
fprintf(stderr, "invalid optimization option `%s'\n", options);
+ fprintf(stderr, "Try \"-O help\" for list of options.\n");
exit(EXIT_FAILURE);
+ case OPTIMIZE_HELP:
+ for (i = 0; i < array_size(optimization_param); i++) {
+ if (level == optimization_param[i].level)
+ continue;
+
+ flag = optimization_param[i].flag;
+ printf("%s: %s (default %s)\n",
+ optimization_param[i].name, optimization_param[i].help,
+ default_flags & flag ? "on" : "off");
+ }
+
+ printf("\nPrepend \"no-\" to disable options that are enabled by default.\n");
+ exit(EXIT_SUCCESS);
case OPTIMIZE_REMOVE_DEPENDENCIES:
break;
}
Print list of supported options. Signed-off-by: Florian Westphal <fw@strlen.de> --- src/main.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)