From de340a7f1a9cf21931d94ea8814545c4b2d172b0 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 21 Sep 2020 10:21:39 +0200 Subject: Add bucketsize parameter to all hash types The parameter defines the upper limit in any hash bucket at adding new entries from userspace - if the limit would be exceeded, ipset doubles the hash size and rehashes. It means the set may consume more memory but gives faster evaluation at matching in the set. Signed-off-by: Jozsef Kadlecsik --- lib/ipset_hash_net.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) (limited to 'lib/ipset_hash_net.c') diff --git a/lib/ipset_hash_net.c b/lib/ipset_hash_net.c index ef9e19c..a943ea6 100644 --- a/lib/ipset_hash_net.c +++ b/lib/ipset_hash_net.c @@ -531,6 +531,89 @@ static struct ipset_type ipset_hash_net6 = { .description = "skbinfo support", }; +/* bucketsize support */ +static struct ipset_type ipset_hash_net7 = { + .name = "hash:net", + .alias = { "nethash", NULL }, + .revision = 7, + .family = NFPROTO_IPSET_IPV46, + .dimension = IPSET_DIM_ONE, + .elem = { + [IPSET_DIM_ONE - 1] = { + .parse = ipset_parse_ip4_net6, + .print = ipset_print_ip, + .opt = IPSET_OPT_IP + }, + }, + .cmd = { + [IPSET_CREATE] = { + .args = { + IPSET_ARG_FAMILY, + /* Aliases */ + IPSET_ARG_INET, + IPSET_ARG_INET6, + IPSET_ARG_HASHSIZE, + IPSET_ARG_MAXELEM, + IPSET_ARG_TIMEOUT, + IPSET_ARG_COUNTERS, + IPSET_ARG_COMMENT, + IPSET_ARG_FORCEADD, + IPSET_ARG_SKBINFO, + IPSET_ARG_BUCKETSIZE, + /* Ignored options: backward compatibilty */ + IPSET_ARG_PROBES, + IPSET_ARG_RESIZE, + IPSET_ARG_NONE, + }, + .need = 0, + .full = 0, + .help = "", + }, + [IPSET_ADD] = { + .args = { + IPSET_ARG_TIMEOUT, + IPSET_ARG_NOMATCH, + IPSET_ARG_PACKETS, + IPSET_ARG_BYTES, + IPSET_ARG_ADT_COMMENT, + IPSET_ARG_SKBMARK, + IPSET_ARG_SKBPRIO, + IPSET_ARG_SKBQUEUE, + IPSET_ARG_NONE, + }, + .need = IPSET_FLAG(IPSET_OPT_IP), + .full = IPSET_FLAG(IPSET_OPT_IP) + | IPSET_FLAG(IPSET_OPT_CIDR) + | IPSET_FLAG(IPSET_OPT_IP_TO), + .help = "IP[/CIDR]", + }, + [IPSET_DEL] = { + .args = { + IPSET_ARG_NONE, + }, + .need = IPSET_FLAG(IPSET_OPT_IP), + .full = IPSET_FLAG(IPSET_OPT_IP) + | IPSET_FLAG(IPSET_OPT_CIDR) + | IPSET_FLAG(IPSET_OPT_IP_TO), + .help = "IP[/CIDR]", + }, + [IPSET_TEST] = { + .args = { + IPSET_ARG_NOMATCH, + IPSET_ARG_NONE, + }, + .need = IPSET_FLAG(IPSET_OPT_IP), + .full = IPSET_FLAG(IPSET_OPT_IP) + | IPSET_FLAG(IPSET_OPT_CIDR), + .help = "IP[/CIDR]", + }, + }, + .usage = "where depending on the INET family\n" + " IP is an IPv4 or IPv6 address (or hostname),\n" + " CIDR is a valid IPv4 or IPv6 CIDR prefix.", + .description = "bucketsize support", +}; + void _init(void); void _init(void) { @@ -541,4 +624,5 @@ void _init(void) ipset_type_add(&ipset_hash_net4); ipset_type_add(&ipset_hash_net5); ipset_type_add(&ipset_hash_net6); + ipset_type_add(&ipset_hash_net7); } -- cgit v1.2.3