[PATCH nft 1/3] evaluate: flush set cache from the evaluation phase

[Pablo Neira Ayuso <pablo@netfilter.org>]

This patch reworks 40ef308e19b6 ("rule: flush set cache before flush
command"). This patch flushes the set cache earlier, from the command
evaluation step.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 src/evaluate.c | 15 +++++++++++++++
 src/rule.c     | 16 ----------------
 2 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/src/evaluate.c b/src/evaluate.c
index 1f56dae5ec13..bb504962ea8d 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -4375,6 +4375,14 @@ static int cmd_evaluate_reset(struct eval_ctx *ctx, struct cmd *cmd)
 	}
 }
 
+static void __flush_set_cache(struct set *set)
+{
+	if (set->init != NULL) {
+		expr_free(set->init);
+		set->init = NULL;
+	}
+}
+
 static int cmd_evaluate_flush(struct eval_ctx *ctx, struct cmd *cmd)
 {
 	struct table *table;
@@ -4402,6 +4410,9 @@ static int cmd_evaluate_flush(struct eval_ctx *ctx, struct cmd *cmd)
 		else if (!set_is_literal(set->flags))
 			return cmd_error(ctx, &ctx->cmd->handle.set.location,
 					 "%s", strerror(ENOENT));
+
+		__flush_set_cache(set);
+
 		return 0;
 	case CMD_OBJ_MAP:
 		table = table_lookup(&cmd->handle, &ctx->nft->cache);
@@ -4416,6 +4427,8 @@ static int cmd_evaluate_flush(struct eval_ctx *ctx, struct cmd *cmd)
 			return cmd_error(ctx, &ctx->cmd->handle.set.location,
 					 "%s", strerror(ENOENT));
 
+		__flush_set_cache(set);
+
 		return 0;
 	case CMD_OBJ_METER:
 		table = table_lookup(&cmd->handle, &ctx->nft->cache);
@@ -4430,6 +4443,8 @@ static int cmd_evaluate_flush(struct eval_ctx *ctx, struct cmd *cmd)
 			return cmd_error(ctx, &ctx->cmd->handle.set.location,
 					 "%s", strerror(ENOENT));
 
+		__flush_set_cache(set);
+
 		return 0;
 	default:
 		BUG("invalid command object type %u\n", cmd->obj);
diff --git a/src/rule.c b/src/rule.c
index dadb26f85567..65973ccb296e 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -2693,21 +2693,6 @@ static int do_command_reset(struct netlink_ctx *ctx, struct cmd *cmd)
 	return do_list_obj(ctx, cmd, type);
 }
 
-static void flush_set_cache(struct netlink_ctx *ctx, struct cmd *cmd)
-{
-	struct table *table;
-	struct set *set;
-
-	table = table_lookup(&cmd->handle, &ctx->nft->cache);
-	assert(table);
-	set = set_lookup(table, cmd->handle.set.name);
-	assert(set);
-	if (set->init != NULL) {
-		expr_free(set->init);
-		set->init = NULL;
-	}
-}
-
 static int do_command_flush(struct netlink_ctx *ctx, struct cmd *cmd)
 {
 	switch (cmd->obj) {
@@ -2717,7 +2702,6 @@ static int do_command_flush(struct netlink_ctx *ctx, struct cmd *cmd)
 	case CMD_OBJ_SET:
 	case CMD_OBJ_MAP:
 	case CMD_OBJ_METER:
-		flush_set_cache(ctx, cmd);
 		return mnl_nft_setelem_flush(ctx, cmd);
 	case CMD_OBJ_RULESET:
 		return mnl_nft_table_del(ctx, cmd);
-- 
2.20.1