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authorJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2018-01-04 13:21:26 +0100
committerJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2018-01-04 13:21:26 +0100
commitad92ed77e77fe421a86f0fde907c51286ed47928 (patch)
tree412d16a99a72446666734d404ffd380eb85d6f49 /kernel/net/netfilter/xt_set.c
parent0a81ab50306539788e2dd0471f3b1ed5b9dcc5ef (diff)
Fix "don't update counters" mode when counters used at the matching
The matching of the counters was not taken into account, fixed.
Diffstat (limited to 'kernel/net/netfilter/xt_set.c')
-rw-r--r--kernel/net/netfilter/xt_set.c119
1 files changed, 43 insertions, 76 deletions
diff --git a/kernel/net/netfilter/xt_set.c b/kernel/net/netfilter/xt_set.c
index 01868aa..a7ac913 100644
--- a/kernel/net/netfilter/xt_set.c
+++ b/kernel/net/netfilter/xt_set.c
@@ -56,13 +56,17 @@ match_set(ip_set_id_t index, const struct sk_buff *skb,
return inv;
}
-#define ADT_OPT(n, f, d, fs, cfs, t) \
-struct ip_set_adt_opt n = { \
- .family = f, \
- .dim = d, \
- .flags = fs, \
- .cmdflags = cfs, \
- .ext.timeout = t, \
+#define ADT_OPT(n, f, d, fs, cfs, t, p, b, po, bo) \
+struct ip_set_adt_opt n = { \
+ .family = f, \
+ .dim = d, \
+ .flags = fs, \
+ .cmdflags = cfs, \
+ .ext.timeout = t, \
+ .ext.packets = p, \
+ .ext.bytes = b, \
+ .ext.packets_op = po, \
+ .ext.bytes_op = bo, \
}
/* Revision 0 interface: backward compatible with netfilter/iptables */
@@ -73,7 +77,8 @@ set_match_v0(const struct sk_buff *skb, CONST struct xt_action_param *par)
const struct xt_set_info_match_v0 *info = par->matchinfo;
ADT_OPT(opt, XT_FAMILY(par), info->match_set.u.compat.dim,
- info->match_set.u.compat.flags, 0, UINT_MAX);
+ info->match_set.u.compat.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
return match_set(info->match_set.index, skb, par, &opt,
info->match_set.u.compat.flags & IPSET_INV_MATCH);
@@ -136,7 +141,8 @@ set_match_v1(const struct sk_buff *skb, CONST struct xt_action_param *par)
const struct xt_set_info_match_v1 *info = par->matchinfo;
ADT_OPT(opt, XT_FAMILY(par), info->match_set.dim,
- info->match_set.flags, 0, UINT_MAX);
+ info->match_set.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
if (opt.flags & IPSET_RETURN_NOMATCH)
opt.cmdflags |= IPSET_FLAG_RETURN_NOMATCH;
@@ -178,45 +184,21 @@ set_match_v1_destroy(const struct xt_mtdtor_param *par)
/* Revision 3 match */
static bool
-match_counter0(u64 counter, const struct ip_set_counter_match0 *info)
-{
- switch (info->op) {
- case IPSET_COUNTER_NONE:
- return true;
- case IPSET_COUNTER_EQ:
- return counter == info->value;
- case IPSET_COUNTER_NE:
- return counter != info->value;
- case IPSET_COUNTER_LT:
- return counter < info->value;
- case IPSET_COUNTER_GT:
- return counter > info->value;
- }
- return false;
-}
-
-static bool
set_match_v3(const struct sk_buff *skb, CONST struct xt_action_param *par)
{
const struct xt_set_info_match_v3 *info = par->matchinfo;
- int ret;
ADT_OPT(opt, XT_FAMILY(par), info->match_set.dim,
- info->match_set.flags, info->flags, UINT_MAX);
+ info->match_set.flags, info->flags, UINT_MAX,
+ info->packets.value, info->bytes.value,
+ info->packets.op, info->bytes.op);
if (info->packets.op != IPSET_COUNTER_NONE ||
info->bytes.op != IPSET_COUNTER_NONE)
opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
- ret = match_set(info->match_set.index, skb, par, &opt,
- info->match_set.flags & IPSET_INV_MATCH);
-
- if (!(ret && opt.cmdflags & IPSET_FLAG_MATCH_COUNTERS))
- return ret;
-
- if (!match_counter0(opt.ext.packets, &info->packets))
- return false;
- return match_counter0(opt.ext.bytes, &info->bytes);
+ return match_set(info->match_set.index, skb, par, &opt,
+ info->match_set.flags & IPSET_INV_MATCH);
}
#define set_match_v3_checkentry set_match_v1_checkentry
@@ -225,45 +207,21 @@ set_match_v3(const struct sk_buff *skb, CONST struct xt_action_param *par)
/* Revision 4 match */
static bool
-match_counter(u64 counter, const struct ip_set_counter_match *info)
-{
- switch (info->op) {
- case IPSET_COUNTER_NONE:
- return true;
- case IPSET_COUNTER_EQ:
- return counter == info->value;
- case IPSET_COUNTER_NE:
- return counter != info->value;
- case IPSET_COUNTER_LT:
- return counter < info->value;
- case IPSET_COUNTER_GT:
- return counter > info->value;
- }
- return false;
-}
-
-static bool
set_match_v4(const struct sk_buff *skb, CONST struct xt_action_param *par)
{
const struct xt_set_info_match_v4 *info = par->matchinfo;
- int ret;
ADT_OPT(opt, XT_FAMILY(par), info->match_set.dim,
- info->match_set.flags, info->flags, UINT_MAX);
+ info->match_set.flags, info->flags, UINT_MAX,
+ info->packets.value, info->bytes.value,
+ info->packets.op, info->bytes.op);
if (info->packets.op != IPSET_COUNTER_NONE ||
info->bytes.op != IPSET_COUNTER_NONE)
opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
- ret = match_set(info->match_set.index, skb, par, &opt,
- info->match_set.flags & IPSET_INV_MATCH);
-
- if (!(ret && opt.cmdflags & IPSET_FLAG_MATCH_COUNTERS))
- return ret;
-
- if (!match_counter(opt.ext.packets, &info->packets))
- return false;
- return match_counter(opt.ext.bytes, &info->bytes);
+ return match_set(info->match_set.index, skb, par, &opt,
+ info->match_set.flags & IPSET_INV_MATCH);
}
#define set_match_v4_checkentry set_match_v1_checkentry
@@ -285,9 +243,11 @@ set_target_v0(struct sk_buff *skb, const struct xt_action_param *par)
const struct xt_set_info_target_v0 *info = par->targinfo;
ADT_OPT(add_opt, XT_FAMILY(par), info->add_set.u.compat.dim,
- info->add_set.u.compat.flags, 0, UINT_MAX);
+ info->add_set.u.compat.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
ADT_OPT(del_opt, XT_FAMILY(par), info->del_set.u.compat.dim,
- info->del_set.u.compat.flags, 0, UINT_MAX);
+ info->del_set.u.compat.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_add(info->add_set.index, skb, CAST_TO_MATCH par,
@@ -363,9 +323,11 @@ set_target_v1(struct sk_buff *skb, const struct xt_action_param *par)
const struct xt_set_info_target_v1 *info = par->targinfo;
ADT_OPT(add_opt, XT_FAMILY(par), info->add_set.dim,
- info->add_set.flags, 0, UINT_MAX);
+ info->add_set.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
ADT_OPT(del_opt, XT_FAMILY(par), info->del_set.dim,
- info->del_set.flags, 0, UINT_MAX);
+ info->del_set.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
if (info->add_set.index != IPSET_INVALID_ID)
ip_set_add(info->add_set.index, skb, CAST_TO_MATCH par,
@@ -437,9 +399,11 @@ set_target_v2(struct sk_buff *skb, const struct xt_action_param *par)
const struct xt_set_info_target_v2 *info = par->targinfo;
ADT_OPT(add_opt, XT_FAMILY(par), info->add_set.dim,
- info->add_set.flags, info->flags, info->timeout);
+ info->add_set.flags, info->flags, info->timeout,
+ 0, 0, 0, 0);
ADT_OPT(del_opt, XT_FAMILY(par), info->del_set.dim,
- info->del_set.flags, 0, UINT_MAX);
+ info->del_set.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
/* Normalize to fit into jiffies */
if (add_opt.ext.timeout != IPSET_NO_TIMEOUT &&
@@ -469,11 +433,14 @@ set_target_v3(struct sk_buff *skb, const struct xt_action_param *par)
int ret;
ADT_OPT(add_opt, XT_FAMILY(par), info->add_set.dim,
- info->add_set.flags, info->flags, info->timeout);
+ info->add_set.flags, info->flags, info->timeout,
+ 0, 0, 0, 0);
ADT_OPT(del_opt, XT_FAMILY(par), info->del_set.dim,
- info->del_set.flags, 0, UINT_MAX);
+ info->del_set.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
ADT_OPT(map_opt, XT_FAMILY(par), info->map_set.dim,
- info->map_set.flags, 0, UINT_MAX);
+ info->map_set.flags, 0, UINT_MAX,
+ 0, 0, 0, 0);
/* Normalize to fit into jiffies */
if (add_opt.ext.timeout != IPSET_NO_TIMEOUT &&