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-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_gen.h12
-rwxr-xr-xtests/cidr.sh112
-rw-r--r--tests/hash:net,iface.t2
-rw-r--r--tests/hash:net,port.t2
-rw-r--r--tests/hash:net.t2
-rwxr-xr-xtests/iptables.sh2
6 files changed, 127 insertions, 5 deletions
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_gen.h b/kernel/net/netfilter/ipset/ip_set_hash_gen.h
index 8244d17..2949645 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/kernel/net/netfilter/ipset/ip_set_hash_gen.h
@@ -152,9 +152,13 @@ htable_bits(u32 hashsize)
DCIDR_PUT(((cidr) ? NCIDR_GET(cidr) : host_mask))
#ifdef IP_SET_HASH_WITH_NET0
+/* cidr from 0 to HOST_MASK value and c = cidr + 1 */
#define NLEN (HOST_MASK + 1)
+#define CIDR_POS(c) ((c) - 1)
#else
+/* cidr from 1 to HOST_MASK value and c = cidr + 1 */
#define NLEN HOST_MASK
+#define CIDR_POS(c) ((c) - 2)
#endif
#else
@@ -308,7 +312,7 @@ mtype_add_cidr(struct htype *h, u8 cidr, u8 n)
} else if (h->nets[i].cidr[n] < cidr) {
j = i;
} else if (h->nets[i].cidr[n] == cidr) {
- h->nets[cidr - 1].nets[n]++;
+ h->nets[CIDR_POS(cidr)].nets[n]++;
return;
}
}
@@ -317,7 +321,7 @@ mtype_add_cidr(struct htype *h, u8 cidr, u8 n)
h->nets[i].cidr[n] = h->nets[i - 1].cidr[n];
}
h->nets[i].cidr[n] = cidr;
- h->nets[cidr - 1].nets[n] = 1;
+ h->nets[CIDR_POS(cidr)].nets[n] = 1;
}
static void
@@ -328,8 +332,8 @@ mtype_del_cidr(struct htype *h, u8 cidr, u8 n)
for (i = 0; i < NLEN; i++) {
if (h->nets[i].cidr[n] != cidr)
continue;
- h->nets[cidr - 1].nets[n]--;
- if (h->nets[cidr - 1].nets[n] > 0)
+ h->nets[CIDR_POS(cidr)].nets[n]--;
+ if (h->nets[CIDR_POS(cidr)].nets[n] > 0)
return;
for (j = i; j < net_end && h->nets[j].cidr[n]; j++)
h->nets[j].cidr[n] = h->nets[j + 1].cidr[n];
diff --git a/tests/cidr.sh b/tests/cidr.sh
new file mode 100755
index 0000000..b7d695a
--- /dev/null
+++ b/tests/cidr.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+
+set -e
+
+NETS="0.0.0.0/1
+128.0.0.0/2
+192.0.0.0/3
+224.0.0.0/4
+240.0.0.0/5
+248.0.0.0/6
+252.0.0.0/7
+254.0.0.0/8
+255.0.0.0/9
+255.128.0.0/10
+255.192.0.0/11
+255.224.0.0/12
+255.240.0.0/13
+255.248.0.0/14
+255.252.0.0/15
+255.254.0.0/16
+255.255.0.0/17
+255.255.128.0/18
+255.255.192.0/19
+255.255.224.0/20
+255.255.240.0/21
+255.255.248.0/22
+255.255.252.0/23
+255.255.254.0/24
+255.255.255.0/25
+255.255.255.128/26
+255.255.255.192/27
+255.255.255.224/28
+255.255.255.240/29
+255.255.255.248/30
+255.255.255.252/31
+255.255.255.254/32"
+
+ipset="../src/ipset"
+
+case "$1" in
+net)
+ $ipset n test hash:net
+
+ while IFS= read x; do
+ $ipset add test $x
+ done <<<"$NETS"
+
+ while IFS= read x; do
+ first=`netmask -r $x | cut -d - -f 1`
+ $ipset test test $first >/dev/null 2>&1
+ last=`netmask -r $x | cut -d - -f 2 | cut -d ' ' -f 1`
+ $ipset test test $last >/dev/null 2>&1
+ done <<<"$NETS"
+
+ while IFS= read x; do
+ $ipset del test $x
+ done <<<"$NETS"
+ ;;
+net,port)
+ $ipset n test hash:net,port
+
+ n=1
+ while IFS= read x; do
+ $ipset add test $x,$n
+ n=$((n+1))
+ done <<<"$NETS"
+
+ n=1
+ while IFS= read x; do
+ first=`netmask -r $x | cut -d - -f 1`
+ $ipset test test $first,$n >/dev/null 2>&1
+ last=`netmask -r $x | cut -d - -f 2 | cut -d ' ' -f 1`
+ $ipset test test $last,$n >/dev/null 2>&1
+ n=$((n+1))
+ done <<<"$NETS"
+
+ n=1
+ while IFS= read x; do
+ $ipset del test $x,$n
+ n=$((n+1))
+ done <<<"$NETS"
+ ;;
+net,iface)
+ $ipset n test hash:net,iface
+
+ $ipset add test 0.0.0.0/0,eth0
+ n=1
+ while IFS= read x; do
+ $ipset add test $x,eth$n
+ n=$((n+1))
+ done <<<"$NETS"
+
+ $ipset test test 0.0.0.0/0,eth0
+ n=1
+ while IFS= read x; do
+ $ipset test test $x,eth$n >/dev/null 2>&1
+ n=$((n+1))
+ done <<<"$NETS"
+
+ $ipset del test 0.0.0.0/0,eth0
+ n=1
+ while IFS= read x; do
+ $ipset del test $x,eth$n
+ n=$((n+1))
+ done <<<"$NETS"
+ ;;
+*)
+ echo "Usage: $0 net|net,port|net,iface"
+ exit 1
+ ;;
+esac
+$ipset x test
diff --git a/tests/hash:net,iface.t b/tests/hash:net,iface.t
index c19de2b..a847357 100644
--- a/tests/hash:net,iface.t
+++ b/tests/hash:net,iface.t
@@ -134,6 +134,8 @@
0 n=`ipset list test | grep -v Revision: | wc -l` && test $n -eq 71
# Delete test set
0 ipset destroy test
+# Check all possible CIDR values
+0 ./cidr.sh net,iface
# Create test set with timeout support
0 ipset create test hash:net,iface timeout 30
# Add a non-matching IP address entry
diff --git a/tests/hash:net,port.t b/tests/hash:net,port.t
index abe565f..d51d27f 100644
--- a/tests/hash:net,port.t
+++ b/tests/hash:net,port.t
@@ -114,6 +114,8 @@
0 ipset -T test 1.1.1.3,80
# Delete test set
0 ipset destroy test
+# Check all possible CIDR values
+0 ./cidr.sh net,port
# Timeout: Check that resizing keeps timeout values
0 ./resizet.sh -4 netport
# Nomatch: Check that resizing keeps the nomatch flag
diff --git a/tests/hash:net.t b/tests/hash:net.t
index f43e7a4..6f54c25 100644
--- a/tests/hash:net.t
+++ b/tests/hash:net.t
@@ -114,6 +114,8 @@
0 ipset destroy test
# Check CIDR book-keeping
0 ./check_cidrs.sh
+# Check all possible CIDR values
+0 ./cidr.sh net
# Timeout: Check that resizing keeps timeout values
0 ./resizet.sh -4 net
# Nomatch: Check that resizing keeps the nomatch flag
diff --git a/tests/iptables.sh b/tests/iptables.sh
index 7273066..7ea90e0 100755
--- a/tests/iptables.sh
+++ b/tests/iptables.sh
@@ -1,6 +1,6 @@
#!/bin/sh
-set -x
+# set -x
set -e
ipset=${IPSET_BIN:-../src/ipset}