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authorOliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>2013-09-22 20:56:32 +0200
committerJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2013-09-23 13:52:41 +0200
commit9af0e20d913f4561234ee07c67d9d8d3008918bf (patch)
treef82feaafc7c3fb6dc1fd07b0fe177bd1736d1882 /kernel
parent1747643b45a6b6d053ba4e93bfe666cb57255eac (diff)
netfilter: ipset: Support comments in bitmap-type ipsets.
This provides kernel support for creating bitmap ipsets with comment support. As is the case for hashes, this incurs a penalty when flushing or destroying the entire ipset as the entries must first be walked in order to free the comment strings. This penalty is of course far less than the cost of listing an ipset to userspace. Any set created without support for comments will be flushed/destroyed as before. Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/net/netfilter/ipset/ip_set_bitmap_gen.h14
-rw-r--r--kernel/net/netfilter/ipset/ip_set_bitmap_ip.c4
-rw-r--r--kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c4
-rw-r--r--kernel/net/netfilter/ipset/ip_set_bitmap_port.c4
4 files changed, 17 insertions, 9 deletions
diff --git a/kernel/net/netfilter/ipset/ip_set_bitmap_gen.h b/kernel/net/netfilter/ipset/ip_set_bitmap_gen.h
index 4515fe8..6167fc9 100644
--- a/kernel/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/kernel/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -101,12 +101,9 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map) +
map->memsize +
- set->dsize * map->elements)) ||
- (SET_WITH_TIMEOUT(set) &&
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
- (SET_WITH_COUNTER(set) &&
- nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
- htonl(IPSET_FLAG_WITH_COUNTERS))))
+ set->dsize * map->elements)))
+ goto nla_put_failure;
+ if (unlikely(ip_set_put_flags(skb, set)))
goto nla_put_failure;
ipset_nest_end(skb, nested);
@@ -162,6 +159,8 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
if (SET_WITH_COUNTER(set))
ip_set_init_counter(ext_counter(x, set), ext);
+ if (SET_WITH_COMMENT(set))
+ ip_set_init_comment(ext_comment(x, set), ext);
return 0;
}
@@ -233,6 +232,9 @@ mtype_list(const struct ip_set *set,
if (SET_WITH_COUNTER(set) &&
ip_set_put_counter(skb, ext_counter(x, set)))
goto nla_put_failure;
+ if (SET_WITH_COMMENT(set) &&
+ ip_set_put_comment(skb, ext_comment(x, set)))
+ goto nla_put_failure;
ipset_nest_end(skb, nested);
}
ipset_nest_end(skb, adt);
diff --git a/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c b/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c
index 94d9854..faac124 100644
--- a/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -26,7 +26,8 @@
#include <linux/netfilter/ipset/ip_set_bitmap.h>
#define IPSET_TYPE_REV_MIN 0
-#define IPSET_TYPE_REV_MAX 1 /* Counter support added */
+/* 1 Counter support added */
+#define IPSET_TYPE_REV_MAX 2 /* Comment support added */
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -354,6 +355,7 @@ static struct ip_set_type bitmap_ip_type __read_mostly = {
[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
+ [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
},
.me = THIS_MODULE,
};
diff --git a/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 654a97b..fb4d163 100644
--- a/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -26,7 +26,8 @@
#include <linux/netfilter/ipset/ip_set_bitmap.h>
#define IPSET_TYPE_REV_MIN 0
-#define IPSET_TYPE_REV_MAX 1 /* Counter support added */
+/* 1 Counter support added */
+#define IPSET_TYPE_REV_MAX 2 /* Comment support added */
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -403,6 +404,7 @@ static struct ip_set_type bitmap_ipmac_type = {
[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
+ [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
},
.me = THIS_MODULE,
};
diff --git a/kernel/net/netfilter/ipset/ip_set_bitmap_port.c b/kernel/net/netfilter/ipset/ip_set_bitmap_port.c
index 1ef2f31..407a63c 100644
--- a/kernel/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/kernel/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -21,7 +21,8 @@
#include <linux/netfilter/ipset/ip_set_getport.h>
#define IPSET_TYPE_REV_MIN 0
-#define IPSET_TYPE_REV_MAX 1 /* Counter support added */
+/* 1 Counter support added */
+#define IPSET_TYPE_REV_MAX 2 /* Comment support added */
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -288,6 +289,7 @@ static struct ip_set_type bitmap_port_type = {
[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
+ [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
},
.me = THIS_MODULE,
};