diff options
author | Liping Zhang <zlpnobody@163.com> | 2016-12-25 20:12:55 +0800 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-01-16 14:09:47 +0100 |
commit | e3ec9362f0edad08834cb8ba66bc45fdb0bf33f5 (patch) | |
tree | 383e1e10a0787e0cf10477cc493a8ea9a9ebb458 /src | |
parent | 5d6e721c8fe31e14ddedb1a642553d072ec99bd1 (diff) |
ct: add average bytes per packet counter support
Similar to connbytes extension in iptables, now you can use it to match
average bytes per packet a connection has transferred so far.
For example, match avgpkt in "BOTH" diretion:
# nft add rule x y ct avgpkt \> 100
Match avgpkt in reply direction:
# nft add rule x y ct reply avgpkt \< 900
Or match avgpkt in original direction:
# nft add rule x y ct original avgpkt \> 200
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src')
-rw-r--r-- | src/ct.c | 2 | ||||
-rw-r--r-- | src/parser_bison.y | 2 | ||||
-rw-r--r-- | src/scanner.l | 1 |
3 files changed, 5 insertions, 0 deletions
@@ -232,6 +232,8 @@ static const struct ct_template ct_templates[] = { BYTEORDER_HOST_ENDIAN, 64), [NFT_CT_PKTS] = CT_TEMPLATE("packets", &integer_type, BYTEORDER_HOST_ENDIAN, 64), + [NFT_CT_AVGPKT] = CT_TEMPLATE("avgpkt", &integer_type, + BYTEORDER_HOST_ENDIAN, 64), }; static void ct_expr_print(const struct expr *expr) diff --git a/src/parser_bison.y b/src/parser_bison.y index be662e4d..4749c9fa 100644 --- a/src/parser_bison.y +++ b/src/parser_bison.y @@ -362,6 +362,7 @@ static void location_update(struct location *loc, struct location *rhs, int n) %token NAME "name" %token PACKETS "packets" %token BYTES "bytes" +%token AVGPKT "avgpkt" %token COUNTERS "counters" %token QUOTAS "quotas" @@ -2945,6 +2946,7 @@ ct_key_dir : SADDR { $$ = NFT_CT_SRC; } ct_key_counters : BYTES { $$ = NFT_CT_BYTES; } | PACKETS { $$ = NFT_CT_PKTS; } + | AVGPKT { $$ = NFT_CT_AVGPKT; } ; ct_stmt : CT ct_key SET expr diff --git a/src/scanner.l b/src/scanner.l index 6b441b54..d0d25ea9 100644 --- a/src/scanner.l +++ b/src/scanner.l @@ -294,6 +294,7 @@ addrstring ({macaddr}|{ip4addr}|{ip6addr}) "name" { return NAME; } "packets" { return PACKETS; } "bytes" { return BYTES; } +"avgpkt" { return AVGPKT; } "counters" { return COUNTERS; } "quotas" { return QUOTAS; } |