Make it possible for users to list all chains in a given table.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 doc/nft.txt        | 2 +-
 src/parser_bison.y | 2 +-
 src/parser_json.c  | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/nft.txt b/doc/nft.txt
index b1f7a83aeb78a..cee92c2bc8303 100644
--- a/doc/nft.txt
+++ b/doc/nft.txt
@@ -390,7 +390,7 @@ CHAINS
 ____
 {*add* | *create*} *chain* ['family'] 'table' 'chain' [*{ type* 'type' *hook* 'hook' ['DEVICE'] *priority* 'priority' *;* [*policy* 'policy' *;*] [*comment* 'comment' *;*] *}*]
 {*delete* | *destroy* | *list* | *flush*} *chain* ['family'] 'table' 'chain'
-*list chains* ['family']
+*list chains* ['family'] ['table']
 *delete chain* ['family'] 'table' *handle* 'handle'
 *destroy chain* ['family'] 'table' *handle* 'handle'
 *rename chain* ['family'] 'table' 'chain' 'newname'
diff --git a/src/parser_bison.y b/src/parser_bison.y
index 8a470bda942e7..5a334bf0c4997 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -1669,7 +1669,7 @@ list_cmd		:	TABLE		table_spec
 			{
 				$$ = cmd_alloc(CMD_LIST, CMD_OBJ_CHAIN, &$2, &@$, NULL);
 			}
-			|	CHAINS		ruleset_spec
+			|	CHAINS		list_cmd_spec_any
 			{
 				$$ = cmd_alloc(CMD_LIST, CMD_OBJ_CHAINS, &$2, &@$, NULL);
 			}
diff --git a/src/parser_json.c b/src/parser_json.c
index f444b8a0f52f9..2f70b9877c6ed 100644
--- a/src/parser_json.c
+++ b/src/parser_json.c
@@ -4140,6 +4140,7 @@ static struct cmd *json_parse_cmd_list_multiple(struct json_ctx *ctx,
 		}
 	}
 	switch (obj) {
+	case CMD_OBJ_CHAINS:
 	case CMD_OBJ_SETS:
 	case CMD_OBJ_COUNTERS:
 	case CMD_OBJ_CT_HELPERS:
-- 
2.51.0