json: Support sets' auto-merge option

If enabled, list the option as additional attribute with boolean value.

Fixes: e70354f53e9f6 ("libnftables: Implement JSON output support")
Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1734
Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/doc/libnftables-json.adoc b/doc/libnftables-json.adoc
index 3e6e1db381d8ff63b9a50b8fcdc3ffb7bb16a419..ee79b959a84883b93f6e43cc7e80a530aeeaa243 100644 (file)
--- a/doc/libnftables-json.adoc
+++ b/doc/libnftables-json.adoc
@@ -312,7 +312,8 @@ ____
        "elem":* 'SET_ELEMENTS'*,
        "timeout":* 'NUMBER'*,
        "gc-interval":* 'NUMBER'*,
-       "size":* 'NUMBER'
+       "size":* 'NUMBER'*,
+       "auto-merge":* 'BOOLEAN'
 *}}*
 
 *{ "map": {
@@ -327,7 +328,8 @@ ____
        "elem":* 'SET_ELEMENTS'*,
        "timeout":* 'NUMBER'*,
        "gc-interval":* 'NUMBER'*,
-       "size":* 'NUMBER'
+       "size":* 'NUMBER'*,
+       "auto-merge":* 'BOOLEAN'
 *}}*
 
 'SET_TYPE' := 'STRING' | *[* 'SET_TYPE_LIST' *]*
@@ -366,6 +368,8 @@ that they translate a unique key to a value.
        Garbage collector interval in seconds.
 *size*::
        Maximum number of elements supported.
+*auto-merge*::
+       Automatic merging of adjacent/overlapping set elements in interval sets.
 
 ==== TYPE
 The set type might be a string, such as *"ipv4_addr"* or an array

diff --git a/src/json.c b/src/json.c
index 6809cd50f0a872f6b8eafa74435f7e1f4f3a5904..b3e1e4e14a5f92a878d633a00e59aa1d3af8d7d1 100644 (file)
--- a/src/json.c
+++ b/src/json.c
@@ -194,6 +194,8 @@ static json_t *set_print_json(struct output_ctx *octx, const struct set *set)
                tmp = json_pack("i", set->gc_int / 1000);
                json_object_set_new(root, "gc-interval", tmp);
        }
+       if (set->automerge)
+               json_object_set_new(root, "auto-merge", json_true());
 
        if (!nft_output_terse(octx) && set->init && set->init->size > 0) {
                json_t *array = json_array();

diff --git a/src/parser_json.c b/src/parser_json.c
index a0c9318c83db9ac13ea6fada94c6ff5787b26be0..970ae8cb26929a438d06573369d920ef3db51449 100644 (file)
--- a/src/parser_json.c
+++ b/src/parser_json.c
@@ -3369,6 +3369,7 @@ static struct cmd *json_parse_cmd_add_set(struct json_ctx *ctx, json_t *root,
        if (!json_unpack(root, "{s:i}", "gc-interval", &set->gc_int))
                set->gc_int *= 1000;
        json_unpack(root, "{s:i}", "size", &set->desc.size);
+       json_unpack(root, "{s:b}", "auto-merge", &set->automerge);
 
        if (!json_unpack(root, "{s:o}", "stmt", &stmt_json))
                json_parse_set_stmt_list(ctx, &set->stmt_list, stmt_json);