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-rw-r--r--extensions/libxt_cgroup.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/extensions/libxt_cgroup.c b/extensions/libxt_cgroup.c
index 480d64c9..d4a29092 100644
--- a/extensions/libxt_cgroup.c
+++ b/extensions/libxt_cgroup.c
@@ -80,6 +80,26 @@ static void cgroup_parse_v1(struct xt_option_call *cb)
}
}
+static void cgroup_parse_v2(struct xt_option_call *cb)
+{
+ struct xt_cgroup_info_v2 *info = cb->data;
+
+ xtables_option_parse(cb);
+
+ switch (cb->entry->id) {
+ case O_PATH:
+ info->has_path = true;
+ if (cb->invert)
+ info->invert_path = true;
+ break;
+ case O_CLASSID:
+ info->has_classid = true;
+ if (cb->invert)
+ info->invert_classid = true;
+ break;
+ }
+}
+
static void
cgroup_print_v0(const void *ip, const struct xt_entry_match *match, int numeric)
{
@@ -121,6 +141,32 @@ static void cgroup_save_v1(const void *ip, const struct xt_entry_match *match)
info->classid);
}
+static void
+cgroup_print_v2(const void *ip, const struct xt_entry_match *match, int numeric)
+{
+ const struct xt_cgroup_info_v2 *info = (void *)match->data;
+
+ printf(" cgroup");
+ if (info->has_path)
+ printf(" %s%s", info->invert_path ? "! ":"", info->path);
+ if (info->has_classid)
+ printf(" %s%u", info->invert_classid ? "! ":"", info->classid);
+}
+
+static void cgroup_save_v2(const void *ip, const struct xt_entry_match *match)
+{
+ const struct xt_cgroup_info_v2 *info = (void *)match->data;
+
+ if (info->has_path) {
+ printf("%s --path", info->invert_path ? " !" : "");
+ xtables_save_string(info->path);
+ }
+
+ if (info->has_classid)
+ printf("%s --cgroup %u", info->invert_classid ? " !" : "",
+ info->classid);
+}
+
static int cgroup_xlate_v0(struct xt_xlate *xl,
const struct xt_xlate_mt_params *params)
{
@@ -147,6 +193,22 @@ static int cgroup_xlate_v1(struct xt_xlate *xl,
return 1;
}
+static int cgroup_xlate_v2(struct xt_xlate *xl,
+ const struct xt_xlate_mt_params *params)
+{
+ const struct xt_cgroup_info_v2 *info = (void *)params->match->data;
+
+ if (info->has_path)
+ return 0;
+
+ if (info->has_classid)
+ xt_xlate_add(xl, "meta cgroup %s%u",
+ info->invert_classid ? "!= " : "",
+ info->classid);
+
+ return 1;
+}
+
static struct xtables_match cgroup_match[] = {
{
.family = NFPROTO_UNSPEC,
@@ -176,6 +238,20 @@ static struct xtables_match cgroup_match[] = {
.x6_options = cgroup_opts_v1,
.xlate = cgroup_xlate_v1,
},
+ {
+ .family = NFPROTO_UNSPEC,
+ .revision = 2,
+ .name = "cgroup",
+ .version = XTABLES_VERSION,
+ .size = XT_ALIGN(sizeof(struct xt_cgroup_info_v2)),
+ .userspacesize = offsetof(struct xt_cgroup_info_v2, priv),
+ .help = cgroup_help_v1,
+ .print = cgroup_print_v2,
+ .save = cgroup_save_v2,
+ .x6_parse = cgroup_parse_v2,
+ .x6_options = cgroup_opts_v1,
+ .xlate = cgroup_xlate_v2,
+ },
};
void _init(void)