src: add support for base hook dumping

Example output:
$ nft list hook ip input
family ip hook input {
        +0000000000 nft_do_chain_inet [nf_tables]       # nft table ip filter chain input
        +0000000010 nft_do_chain_inet [nf_tables]       # nft table ip firewalld chain filter_INPUT
        +0000000100 nf_nat_ipv4_local_in [nf_nat]
        +2147483647 ipv4_confirm [nf_conntrack]
}

$ nft list hooks netdev type ingress device lo
family netdev hook ingress device lo {
        +0000000000 nft_do_chain_netdev [nf_tables]
}

$ nft list hooks inet
family ip hook prerouting {
        -0000000400 ipv4_conntrack_defrag [nf_defrag_ipv4]
        -0000000300 iptable_raw_hook [iptable_raw]
        -0000000290 nft_do_chain_inet [nf_tables]       # nft table ip firewalld chain raw_PREROUTING
        -0000000200 ipv4_conntrack_in [nf_conntrack]
        -0000000140 nft_do_chain_inet [nf_tables]       # nft table ip firewalld chain mangle_PREROUTING
        -0000000100 nf_nat_ipv4_pre_routing [nf_nat]
}
...

'nft list hooks' will display everyting except the netdev family
via successive dump request for all family:hook combinations.

Signed-off-by: Florian Westphal <fw@strlen.de>

9 files changed, 457 insertions, 4 deletions

diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 454f78d0..49e2b2c5 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -59,7 +59,8 @@ struct nfgenmsg {
 #define NFNL_SUBSYS_CTHELPER		9
 #define NFNL_SUBSYS_NFTABLES		10
 #define NFNL_SUBSYS_NFT_COMPAT		11
-#define NFNL_SUBSYS_COUNT		12
+#define NFNL_SUBSYS_HOOK		12
+#define NFNL_SUBSYS_COUNT		13
 
 /* Reserved control nfnetlink messages */
 #define NFNL_MSG_BATCH_BEGIN		NLMSG_MIN_TYPE
diff --git a/include/linux/netfilter/nfnetlink_hook.h b/include/linux/netfilter/nfnetlink_hook.h
new file mode 100644
index 00000000..d8ac8278
--- /dev/null
+++ b/include/linux/netfilter/nfnetlink_hook.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _NFNL_HOOK_H_
+#define _NFNL_HOOK_H_
+
+enum nfnl_hook_msg_types {
+	NFNL_MSG_HOOK_GET,
+	NFNL_MSG_HOOK_MAX,
+};
+
+/**
+ * enum nfnl_hook_attributes - nf_tables netfilter hook netlink attributes
+ *
+ * @NFNLA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
+ * @NFNLAA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
+ * @NFNLA_HOOK_DEV: netdevice name (NLA_STRING)
+ * @NFNLA_HOOK_FUNCTION_NAME: hook function name (NLA_STRING)
+ * @NFNLA_HOOK_MODULE_NAME: kernel module that registered this hook (NLA_STRING)
+ * @NFNLA_HOOK_CHAIN_INFO: basechain hook metadata (NLA_NESTED)
+ */
+enum nfnl_hook_attributes {
+	NFNLA_HOOK_UNSPEC,
+	NFNLA_HOOK_HOOKNUM,
+	NFNLA_HOOK_PRIORITY,
+	NFNLA_HOOK_DEV,
+	NFNLA_HOOK_FUNCTION_NAME,
+	NFNLA_HOOK_MODULE_NAME,
+	NFNLA_HOOK_CHAIN_INFO,
+	__NFNLA_HOOK_MAX
+};
+#define NFNLA_HOOK_MAX		(__NFNLA_HOOK_MAX - 1)
+
+/**
+ * enum nfnl_hook_chain_info_attributes - chain description
+ *
+ * NFNLA_HOOK_INFO_DESC: nft chain and table name (enum nft_table_attributes) (NLA_NESTED)
+ * NFNLA_HOOK_INFO_TYPE: chain type (enum nfnl_hook_chaintype) (NLA_U32)
+ */
+enum nfnl_hook_chain_info_attributes {
+	NFNLA_HOOK_INFO_UNSPEC,
+	NFNLA_HOOK_INFO_DESC,
+	NFNLA_HOOK_INFO_TYPE,
+	__NFNLA_HOOK_INFO_MAX,
+};
+#define NFNLA_HOOK_INFO_MAX (__NFNLA_HOOK_INFO_MAX - 1)
+
+/**
+ * enum nfnl_hook_chaintype - chain type
+ *
+ * @NFNL_HOOK_TYPE_NFTABLES nf_tables base chain
+ */
+enum nfnl_hook_chaintype {
+	NFNL_HOOK_TYPE_NFTABLES = 0x1,
+};
+#endif /* _NFNL_HOOK_H */
diff --git a/include/mnl.h b/include/mnl.h
index 979929c3..68ec80cd 100644
--- a/include/mnl.h
+++ b/include/mnl.h
@@ -82,6 +82,9 @@ int mnl_nft_flowtable_add(struct netlink_ctx *ctx, struct cmd *cmd,
 			  unsigned int flags);
 int mnl_nft_flowtable_del(struct netlink_ctx *ctx, struct cmd *cmd);
 
+int mnl_nft_dump_nf_hooks(struct netlink_ctx *ctx, int family, int hook,
+			  const char *devname);
+
 int mnl_nft_event_listener(struct mnl_socket *nf_sock, unsigned int debug_mask,
 			   struct output_ctx *octx,
 			   int (*cb)(const struct nlmsghdr *nlh, void *data),
diff --git a/include/rule.h b/include/rule.h
index f469db55..357326a3 100644
--- a/include/rule.h
+++ b/include/rule.h
@@ -644,6 +644,7 @@ enum cmd_obj {
 	CMD_OBJ_CT_EXPECT,
 	CMD_OBJ_SYNPROXY,
 	CMD_OBJ_SYNPROXYS,
+	CMD_OBJ_HOOKS,
 };
 
 struct markup {
diff --git a/src/evaluate.c b/src/evaluate.c
index 2ed68aad..43f1f8a3 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -4719,6 +4719,16 @@ static int cmd_evaluate_list(struct eval_ctx *ctx, struct cmd *cmd)
 	case CMD_OBJ_METERS:
 	case CMD_OBJ_MAPS:
 		return 0;
+	case CMD_OBJ_HOOKS:
+		if (cmd->handle.chain.name) {
+			int hooknum = str2hooknum(cmd->handle.family, cmd->handle.chain.name);
+
+			if (hooknum == NF_INET_NUMHOOKS)
+				return chain_not_found(ctx);
+
+			cmd->handle.chain_id = hooknum;
+		}
+		return 0;
 	default:
 		BUG("invalid command object type %u\n", cmd->obj);
 	}
diff --git a/src/mnl.c b/src/mnl.c
index ef45cbd1..ce58ae72 100644
--- a/src/mnl.c
+++ b/src/mnl.c
@@ -22,6 +22,7 @@
 #include <libnftnl/udata.h>
 
 #include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nfnetlink_hook.h>
 #include <linux/netfilter/nf_tables.h>
 
 #include <mnl.h>
@@ -34,6 +35,17 @@
 #include <stdlib.h>
 #include <utils.h>
 #include <nftables.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_arp.h>
+
+struct basehook {
+	struct list_head list;
+	const char *module_name;
+	const char *hookfn;
+	const char *table;
+	const char *chain;
+	int prio;
+};
 
 struct mnl_socket *nft_mnl_socket_open(void)
 {
@@ -1874,7 +1886,7 @@ int mnl_nft_event_listener(struct mnl_socket *nf_sock, unsigned int debug_mask,
 			   void *cb_data)
 {
 	/* Set netlink socket buffer size to 16 Mbytes to reduce chances of
- 	 * message loss due to ENOBUFS.
+	 * message loss due to ENOBUFS.
 	 */
 	unsigned int bufsiz = NFTABLES_NLEVENT_BUFSIZ;
 	int fd = mnl_socket_get_fd(nf_sock);
@@ -1918,3 +1930,317 @@ int mnl_nft_event_listener(struct mnl_socket *nf_sock, unsigned int debug_mask,
 	}
 	return ret;
 }
+
+static struct basehook *basehook_alloc(void)
+{
+	return xzalloc(sizeof(struct basehook));
+}
+
+static void basehook_free(struct basehook *b)
+{
+	list_del(&b->list);
+	xfree(b->module_name);
+	xfree(b->hookfn);
+	xfree(b->chain);
+	xfree(b->table);
+	xfree(b);
+}
+
+static void basehook_list_add_tail(struct basehook *b, struct list_head *head)
+{
+	list_add_tail(&b->list, head);
+}
+
+static int dump_nf_attr_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFNLA_HOOK_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFNLA_HOOK_HOOKNUM:
+	case NFNLA_HOOK_PRIORITY:
+                if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	case NFNLA_HOOK_DEV:
+                if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	case NFNLA_HOOK_MODULE_NAME:
+	case NFNLA_HOOK_FUNCTION_NAME:
+                if (mnl_attr_validate(attr, MNL_TYPE_NUL_STRING) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	case NFNLA_HOOK_CHAIN_INFO:
+                if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	default:
+		return MNL_CB_OK;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int dump_nf_chain_info_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFNLA_HOOK_INFO_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFNLA_HOOK_INFO_DESC:
+                if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	case NFNLA_HOOK_INFO_TYPE:
+                if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	default:
+		return MNL_CB_OK;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int dump_nf_attr_chain_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_CHAIN_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFTA_CHAIN_TABLE:
+	case NFTA_CHAIN_NAME:
+                if (mnl_attr_validate(attr, MNL_TYPE_NUL_STRING) < 0)
+                        return MNL_CB_ERROR;
+		break;
+	default:
+		return MNL_CB_OK;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int dump_nf_hooks(const struct nlmsghdr *nlh, void *data)
+{
+	const struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh);
+	struct nlattr *tb[NFNLA_HOOK_MAX + 1] = {};
+	struct list_head *head = data;
+	struct basehook *hook;
+
+	/* NB: Don't check the nft generation ID, this is not
+	 * an nftables subsystem.
+	 */
+	if (mnl_attr_parse(nlh, sizeof(*nfg), dump_nf_attr_cb, tb) < 0)
+		return -1;
+
+	if (!tb[NFNLA_HOOK_PRIORITY])
+		netlink_abi_error();
+
+	hook = basehook_alloc();
+	hook->prio = ntohl(mnl_attr_get_u32(tb[NFNLA_HOOK_PRIORITY]));
+
+	if (tb[NFNLA_HOOK_FUNCTION_NAME])
+		hook->hookfn = xstrdup(mnl_attr_get_str(tb[NFNLA_HOOK_FUNCTION_NAME]));
+
+	if (tb[NFNLA_HOOK_MODULE_NAME])
+		hook->module_name = xstrdup(mnl_attr_get_str(tb[NFNLA_HOOK_MODULE_NAME]));
+
+	if (tb[NFNLA_HOOK_CHAIN_INFO]) {
+		struct nlattr *nested[NFNLA_HOOK_INFO_MAX + 1] = {};
+		uint32_t type;
+
+		if (mnl_attr_parse_nested(tb[NFNLA_HOOK_CHAIN_INFO], dump_nf_chain_info_cb, nested) < 0)
+			return -1;
+
+		type = ntohl(mnl_attr_get_u32(nested[NFNLA_HOOK_INFO_TYPE]));
+		if (type == NFNL_HOOK_TYPE_NFTABLES) {
+			struct nlattr *info[NFTA_CHAIN_MAX + 1] = {};
+			const char *tablename, *chainname;
+
+			if (mnl_attr_parse_nested(nested[NFNLA_HOOK_INFO_DESC], dump_nf_attr_chain_cb, info) < 0)
+				return -1;
+
+			tablename = mnl_attr_get_str(info[NFTA_CHAIN_TABLE]);
+			chainname = mnl_attr_get_str(info[NFTA_CHAIN_NAME]);
+			if (tablename && chainname) {
+				hook->table = xstrdup(tablename);
+				hook->chain = xstrdup(chainname);
+			}
+		}
+	}
+
+	basehook_list_add_tail(hook, head);
+	return MNL_CB_OK;
+}
+
+static struct nlmsghdr *nf_hook_dump_request(char *buf, uint8_t family, uint32_t seq)
+{
+	struct nlmsghdr *nlh = mnl_nlmsg_put_header(buf);
+	struct nfgenmsg *nfg;
+
+	nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+	nlh->nlmsg_type = NFNL_SUBSYS_HOOK << 8;
+	nlh->nlmsg_seq = seq;
+
+	nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+	nfg->nfgen_family = family;
+	nfg->version = NFNETLINK_V0;
+
+	return nlh;
+}
+
+static int __mnl_nft_dump_nf_hooks(struct netlink_ctx *ctx, uint8_t family, uint8_t hooknum, const char *devname)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct basehook *hook, *tmp;
+	struct nlmsghdr *nlh;
+	LIST_HEAD(hook_list);
+	FILE *fp;
+	int ret;
+
+	nlh = nf_hook_dump_request(buf, family, ctx->seqnum);
+	if (devname)
+		mnl_attr_put_strz(nlh, NFNLA_HOOK_DEV, devname);
+
+	mnl_attr_put_u32(nlh, NFNLA_HOOK_HOOKNUM, htonl(hooknum));
+
+	ret = nft_mnl_talk(ctx, nlh, nlh->nlmsg_len, dump_nf_hooks, &hook_list);
+	if (ret)
+		return ret;
+
+	if (list_empty(&hook_list))
+		return 0;
+
+	fp = ctx->nft->output.output_fp;
+	fprintf(fp, "family %s hook %s", family2str(family), hooknum2str(family, hooknum));
+	if (devname)
+		fprintf(fp, " device %s", devname);
+
+	fprintf(fp, " {\n");
+
+	list_for_each_entry_safe(hook, tmp, &hook_list, list) {
+		int prio = hook->prio;
+
+		if (prio < 0)
+			fprintf(fp, "\t%011d", prio); /* outputs a '-' sign */
+		else
+			fprintf(fp, "\t+%010u", prio);
+
+		if (hook->hookfn) {
+			fprintf(fp, " %s", hook->hookfn);
+			if (hook->module_name)
+				fprintf(fp, " [%s]", hook->module_name);
+		}
+
+		if (hook->table && hook->chain)
+			fprintf(fp, "\t# nft table %s %s chain %s", family2str(family), hook->table, hook->chain);
+
+		fprintf(fp, "\n");
+		basehook_free(hook);
+	}
+
+	fprintf(fp, "}\n");
+	return ret;
+}
+
+int mnl_nft_dump_nf_hooks(struct netlink_ctx *ctx, int family, int hook, const char *devname)
+{
+	unsigned int i;
+	int ret, err;
+
+	errno = 0;
+	ret = 0;
+
+	switch (family) {
+	case NFPROTO_UNSPEC:
+		if (devname)
+			return mnl_nft_dump_nf_hooks(ctx, NFPROTO_NETDEV, NF_INET_INGRESS, devname);
+
+		err = mnl_nft_dump_nf_hooks(ctx, NFPROTO_INET, hook, NULL);
+		if (err < 0 && errno != EPROTONOSUPPORT)
+			ret = err;
+		err = mnl_nft_dump_nf_hooks(ctx, NFPROTO_ARP, hook, NULL);
+		if (err < 0 && errno != EPROTONOSUPPORT)
+			ret = err;
+		err = mnl_nft_dump_nf_hooks(ctx, NFPROTO_BRIDGE, hook, NULL);
+		if (err < 0 && errno != EPROTONOSUPPORT)
+			ret = err;
+		err = mnl_nft_dump_nf_hooks(ctx, NFPROTO_DECNET, hook, NULL);
+		if (err < 0 && errno != EPROTONOSUPPORT)
+			ret = err;
+		break;
+	case NFPROTO_INET:
+		if (devname) {
+			err = __mnl_nft_dump_nf_hooks(ctx, family, NF_INET_INGRESS, devname);
+			if (err < 0)
+				ret = err;
+		}
+
+		err = mnl_nft_dump_nf_hooks(ctx, NFPROTO_IPV4, hook, NULL);
+		if (err < 0)
+			ret = err;
+		err = mnl_nft_dump_nf_hooks(ctx, NFPROTO_IPV6, hook, NULL);
+		if (err < 0)
+			ret = err;
+
+		break;
+	case NFPROTO_IPV4:
+	case NFPROTO_IPV6:
+	case NFPROTO_BRIDGE:
+		if (hook >= 0)
+			return __mnl_nft_dump_nf_hooks(ctx, family, hook, devname);
+
+		for (i = 0; i <= NF_INET_POST_ROUTING; i++) {
+			err = __mnl_nft_dump_nf_hooks(ctx, family, i, NULL);
+			if (err < 0)
+				err = ret;
+		}
+		break;
+	case NFPROTO_ARP:
+		if (hook >= 0)
+			return __mnl_nft_dump_nf_hooks(ctx, family, hook, devname);
+
+		err = __mnl_nft_dump_nf_hooks(ctx, family, NF_ARP_IN, devname);
+		if (err < 0)
+			ret = err;
+		err = __mnl_nft_dump_nf_hooks(ctx, family, NF_ARP_OUT, devname);
+		if (err < 0)
+			ret = err;
+		break;
+	case NFPROTO_NETDEV:
+		if (hook >= 0)
+			return __mnl_nft_dump_nf_hooks(ctx, family, hook, devname);
+
+		err = __mnl_nft_dump_nf_hooks(ctx, family, NF_INET_INGRESS, devname);
+		if (err < 0)
+			ret = err;
+		break;
+	case NFPROTO_DECNET:
+		if (hook >= 0)
+			return __mnl_nft_dump_nf_hooks(ctx, family, hook, devname);
+#define NF_DN_NUMHOOKS		7
+		for (i = 0; i < NF_DN_NUMHOOKS; i++) {
+			err = __mnl_nft_dump_nf_hooks(ctx, family, i, devname);
+			if (err < 0) {
+				ret = err;
+				break;
+			}
+		}
+		break;
+	}
+
+	return ret;
+}
diff --git a/src/parser_bison.y b/src/parser_bison.y
index f6c92feb..136ae105 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -238,6 +238,7 @@ int nft_lex(void *, void *, void *);
 %token TYPEOF			"typeof"
 
 %token HOOK			"hook"
+%token HOOKS			"hooks"
 %token DEVICE			"device"
 %token DEVICES			"devices"
 %token TABLE			"table"
@@ -632,11 +633,15 @@ int nft_lex(void *, void *, void *);
 
 %type <handle>			set_identifier flowtableid_spec flowtable_identifier obj_identifier
 %destructor { handle_free(&$$); } set_identifier flowtableid_spec obj_identifier
+
+%type <handle>			basehook_spec
+%destructor { handle_free(&$$); } basehook_spec
+
 %type <val>			family_spec family_spec_explicit
 %type <val32>			int_num	chain_policy
 %type <prio_spec>		extended_prio_spec prio_spec
-%type <string>			extended_prio_name quota_unit
-%destructor { xfree($$); }	extended_prio_name quota_unit
+%type <string>			extended_prio_name quota_unit	basehook_device_name
+%destructor { xfree($$); }	extended_prio_name quota_unit	basehook_device_name
 
 %type <expr>			dev_spec
 %destructor { xfree($$); }	dev_spec
@@ -1456,6 +1461,45 @@ list_cmd		:	TABLE		table_spec
 			{
 				$$ = cmd_alloc(CMD_LIST, $2, &$4, &@$, NULL);
 			}
+			|	HOOKS	basehook_spec
+			{
+				$$ = cmd_alloc(CMD_LIST, CMD_OBJ_HOOKS, &$2, &@$, NULL);
+			}
+			;
+
+basehook_device_name	:	/* NULL */
+			{
+				$$ = NULL;
+			}
+			|	DEVICE STRING
+			{
+				$$ = $2;
+			}
+			;
+
+basehook_spec		:	ruleset_spec
+			{
+				$$ = $1;
+			}
+			|	ruleset_spec    STRING  basehook_device_name
+			{
+				const char *name = chain_hookname_lookup($2);
+
+				if (name == NULL) {
+					erec_queue(error(&@2, "unknown chain hook"),
+						   state->msgs);
+					xfree($3);
+					YYERROR;
+				}
+
+				$1.chain.name = $2;
+				$1.chain.location = @2;
+				if ($3) {
+					$1.obj.name = $3;
+					$1.obj.location = @3;
+				}
+				$$ = $1;
+			}
 			;
 
 reset_cmd		:	COUNTERS	ruleset_spec
diff --git a/src/rule.c b/src/rule.c
index 8e426c5f..dbbe744e 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -2371,6 +2371,17 @@ static int do_list_set(struct netlink_ctx *ctx, struct cmd *cmd,
 	return 0;
 }
 
+static int do_list_hooks(struct netlink_ctx *ctx, struct cmd *cmd)
+{
+	const char *devname = cmd->handle.obj.name;
+	int hooknum = -1;
+
+	if (cmd->handle.chain.name)
+		hooknum = cmd->handle.chain_id;
+
+	return mnl_nft_dump_nf_hooks(ctx, cmd->handle.family, hooknum, devname);
+}
+
 static int do_command_list(struct netlink_ctx *ctx, struct cmd *cmd)
 {
 	struct table *table = NULL;
@@ -2431,6 +2442,8 @@ static int do_command_list(struct netlink_ctx *ctx, struct cmd *cmd)
 		return do_list_flowtable(ctx, cmd, table);
 	case CMD_OBJ_FLOWTABLES:
 		return do_list_flowtables(ctx, cmd);
+	case CMD_OBJ_HOOKS:
+		return do_list_hooks(ctx, cmd);
 	default:
 		BUG("invalid command object type %u\n", cmd->obj);
 	}
diff --git a/src/scanner.l b/src/scanner.l
index c1bc21aa..6dc1be89 100644
--- a/src/scanner.l
+++ b/src/scanner.l
@@ -354,6 +354,7 @@ addrstring	({macaddr}|{ip4addr}|{ip6addr})
 	"limits"		{ return LIMITS; }
 	"secmarks"		{ return SECMARKS; }
 	"synproxys"		{ return SYNPROXYS; }
+	"hooks"			{ return HOOKS; }
 }
 
 "counter"		{ scanner_push_start_cond(yyscanner, SCANSTATE_COUNTER); return COUNTER; }