From 7fd67ce121f86c9e0aecd731d367170ce1458389 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 16 Sep 2021 11:59:13 +0200
Subject: doc: fix synopsis of named counter, quota and ct
 {helper,timeout,expect}

Synopsis is not complete. Add examples for counters and quotas.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 doc/nft.txt              |  8 +++----
 doc/stateful-objects.txt | 62 ++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 61 insertions(+), 9 deletions(-)

diff --git a/doc/nft.txt b/doc/nft.txt
index 13fe8b1f..c9bb901b 100644
--- a/doc/nft.txt
+++ b/doc/nft.txt
@@ -291,7 +291,7 @@ Effectively, this is the nft-equivalent of *iptables-save* and
 TABLES
 ------
 [verse]
-{*add* | *create*} *table* ['family'] 'table' [*{ flags* 'flags' *; }*]
+{*add* | *create*} *table* ['family'] 'table' [ {*comment* 'comment' *;*'} *{ flags* 'flags' *; }*]
 {*delete* | *list* | *flush*} *table* ['family'] 'table'
 *list tables* ['family']
 *delete table* ['family'] *handle* 'handle'
@@ -344,7 +344,7 @@ add table inet mytable
 CHAINS
 ------
 [verse]
-{*add* | *create*} *chain* ['family'] 'table' 'chain' [*{ type* 'type' *hook* 'hook' [*device* 'device'] *priority* 'priority' *;* [*policy* 'policy' *;*] *}*]
+{*add* | *create*} *chain* ['family'] 'table' 'chain' [*{ type* 'type' *hook* 'hook' [*device* 'device'] *priority* 'priority' *;* [*policy* 'policy' *;*] [*comment* 'comment' *;*'] *}*]
 {*delete* | *list* | *flush*} *chain* ['family'] 'table' 'chain'
 *list chains* ['family']
 *delete chain* ['family'] 'table' *handle* 'handle'
@@ -527,7 +527,7 @@ The sets allowed_hosts and allowed_ports need to be created first. The next
 section describes nft set syntax in more detail.
 
 [verse]
-*add set* ['family'] 'table' 'set' *{ type* 'type' | *typeof* 'expression' *;* [*flags* 'flags' *;*] [*timeout* 'timeout' *;*] [*gc-interval* 'gc-interval' *;*] [*elements = {* 'element'[*,* ...] *} ;*] [*size* 'size' *;*] [*policy* 'policy' *;*] [*auto-merge ;*] *}*
+*add set* ['family'] 'table' 'set' *{ type* 'type' | *typeof* 'expression' *;* [*flags* 'flags' *;*] [*timeout* 'timeout' *;*] [*gc-interval* 'gc-interval' *;*] [*elements = {* 'element'[*,* ...] *} ;*] [*size* 'size' *;*] [*comment* 'comment' *;*'] [*policy* 'policy' *;*] [*auto-merge ;*] *}*
 {*delete* | *list* | *flush*} *set* ['family'] 'table' 'set'
 *list sets* ['family']
 *delete set* ['family'] 'table' *handle* 'handle'
@@ -580,7 +580,7 @@ automatic merge of adjacent/overlapping set elements (only for interval sets) |
 MAPS
 -----
 [verse]
-*add map* ['family'] 'table' 'map' *{ type* 'type' | *typeof* 'expression' [*flags* 'flags' *;*] [*elements = {* 'element'[*,* ...] *} ;*] [*size* 'size' *;*] [*policy* 'policy' *;*] *}*
+*add map* ['family'] 'table' 'map' *{ type* 'type' | *typeof* 'expression' [*flags* 'flags' *;*] [*elements = {* 'element'[*,* ...] *} ;*] [*size* 'size' *;*] [*comment* 'comment' *;*'] [*policy* 'policy' *;*] *}*
 {*delete* | *list* | *flush*} *map* ['family'] 'table' 'map'
 *list maps* ['family']
 
diff --git a/doc/stateful-objects.txt b/doc/stateful-objects.txt
index c7488b28..4972969e 100644
--- a/doc/stateful-objects.txt
+++ b/doc/stateful-objects.txt
@@ -1,7 +1,9 @@
 CT HELPER
 ~~~~~~~~~
 [verse]
-*ct helper* 'helper' *{ type* 'type' *protocol* 'protocol' *;* [*l3proto* 'family' *;*] *}*
+*add* *ct helper* ['family'] 'table' 'name' *{ type* 'type' *protocol* 'protocol' *;* [*l3proto* 'family' *;*] *}*
+*delete* *ct helper* ['family'] 'table' 'name'
+*list* *ct helpers*
 
 Ct helper is used to define connection tracking helpers that can then be used in
 combination with the *ct helper set* statement. 'type' and 'protocol' are
@@ -22,6 +24,9 @@ string (e.g. ip)
 |l3proto |
 layer 3 protocol of the helper |
 address family (e.g. ip)
+|comment |
+per ct helper comment field |
+string
 |=================
 
 .defining and assigning ftp helper
@@ -43,7 +48,9 @@ table inet myhelpers {
 CT TIMEOUT
 ~~~~~~~~~~
 [verse]
-*ct timeout* 'name' *{ protocol* 'protocol' *; policy = {* 'state'*:* 'value' [*,* ...] *} ;* [*l3proto* 'family' *;*] *}*
+*add* *ct timeout*  ['family'] 'table' 'name' *{ protocol* 'protocol' *; policy = {* 'state'*:* 'value' [*,* ...] *} ;* [*l3proto* 'family' *;*] *}*
+*delete* *ct timeout* ['family'] 'table' 'name'
+*list* *ct timeouts*
 
 Ct timeout is used to update connection tracking timeout values.Timeout policies are assigned
 with the *ct timeout set* statement. 'protocol' and 'policy' are
@@ -65,6 +72,9 @@ unsigned integer
 |l3proto |
 layer 3 protocol of the timeout object |
 address family (e.g. ip)
+|comment |
+per ct timeout comment field |
+string
 |=================
 
 .defining and assigning ct timeout policy
@@ -98,7 +108,9 @@ sport=41360 dport=22
 CT EXPECTATION
 ~~~~~~~~~~~~~~
 [verse]
-*ct expectation* 'name' *{ protocol* 'protocol' *; dport* 'dport' *; timeout* 'timeout' *; size* 'size' *; [*l3proto* 'family' *;*] *}*
+*add* *ct expectation*  ['family'] 'table' 'name' *{ protocol* 'protocol' *; dport* 'dport' *; timeout* 'timeout' *; size* 'size' *; [*l3proto* 'family' *;*] *}*
+*delete* *ct expectation*  ['family'] 'table' 'name'
+*list* *ct expectations*
 
 Ct expectation is used to create connection expectations. Expectations are
 assigned with the *ct expectation set* statement. 'protocol', 'dport',
@@ -124,6 +136,9 @@ unsigned integer
 |l3proto |
 layer 3 protocol of the expectation object |
 address family (e.g. ip)
+|comment |
+per ct expectation comment field |
+string
 |=================
 
 .defining and assigning ct expectation policy
@@ -147,7 +162,9 @@ table ip filter {
 COUNTER
 ~~~~~~~
 [verse]
-*counter* ['packets bytes']
+*add* *counter* ['family'] 'table' 'name' [*{* [ *packets* 'packets' *bytes* 'bytes' ';' ] [ *comment* 'comment' ';' *}*]
+*delete* *counter* ['family'] 'table' 'name'
+*list* *counters*
 
 .Counter specifications
 [options="header"]
@@ -159,12 +176,31 @@ unsigned integer (64 bit)
 |bytes |
 initial count of bytes |
 unsigned integer (64 bit)
+|comment |
+per counter comment field |
+string
 |=================
 
+.*Using named counters*
+------------------
+nft add counter filter http
+nft add rule filter input tcp dport 80 counter name \"http\"
+------------------
+
+.*Using named counters with maps*
+------------------
+nft add counter filter http
+nft add counter filter https
+nft add rule filter input counter name tcp dport map { 80 : \"http\", 443 : \"https\" }
+------------------
+
 QUOTA
 ~~~~~
 [verse]
-*quota* [*over* | *until*] ['used']
+*add* *quota* ['family'] 'table' 'name' *{* [*over*|*until*] 'bytes' 'BYTE_UNIT' [ *used* 'bytes' 'BYTE_UNIT' ] ';' [ *comment* 'comment' ';' ] *}*
+BYTE_UNIT := bytes | kbytes | mbytes
+*delete* *quota* ['family'] 'table' 'name'
+*list* *quotas*
 
 .Quota specifications
 [options="header"]
@@ -177,4 +213,20 @@ Two arguments, unsigned integer (64 bit) and string: bytes, kbytes, mbytes.
 |used |
 initial value of used quota |
 Two arguments, unsigned integer (64 bit) and string: bytes, kbytes, mbytes
+|comment |
+per quota comment field |
+string
 |=================
+
+.*Using named quotas*
+------------------
+nft add quota filter user123 { over 20 mbytes }
+nft add rule filter input ip saddr 192.168.10.123 quota name \"user123\"
+------------------
+
+.*Using named quotas with maps*
+------------------
+nft add quota filter user123 { over 20 mbytes }
+nft add quota filter user124 { over 20 mbytes }
+nft add rule filter input quota name ip saddr map { 192.168.10.123 : \"user123\", 192.168.10.124 : \"user124\" }
+------------------
-- 
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