Support updating extensions when the set is full

When the set was full (hash type and maxelem reached), it was not
possible to update the extension part of already existing elements.
The patch removes this limitation. (Fixes netfilter bugzilla id 880.)

2 files changed, 26 insertions, 0 deletions

diff --git a/tests/hash:mac.t b/tests/hash:mac.t
index 25739da..f7023d0 100644
--- a/tests/hash:mac.t
+++ b/tests/hash:mac.t
@@ -50,4 +50,22 @@
 0 diff -u -I 'Size in memory.*' .foo hash:mac.t.list1
 # MAC: Destroy test set
 0 ipset -X test
+# MAC: Create a set with small maxelem parameter
+0 ipset n test hash:mac maxelem 2 skbinfo
+# MAC: Add first element
+0 ipset a test 1:2:3:4:5:6 skbprio 1:10
+# MAC: Add second element
+0 ipset a test 1:2:3:4:5:7 skbprio 1:11
+# MAC: Add third element
+1 ipset a test 1:2:3:4:5:8 skbprio 1:12
+# MAC: Add second element again
+1 ipset a test 1:2:3:4:5:7 skbprio 1:11
+# MAC: Add second element with another extension value
+0 ipset -! a test 1:2:3:4:5:7 skbprio 1:12 skbqueue 8
+# MAC: List set
+0 ipset -L test 2>/dev/null | grep -v Revision: > .foo0 && ./sort.sh .foo0
+# MAC: Check listing
+0 diff -u -I 'Size in memory.*' .foo hash:mac.t.list3
+# MAC: Destroy test set
+0 ipset x test
 # eof
diff --git a/tests/hash:mac.t.list3 b/tests/hash:mac.t.list3
new file mode 100644
index 0000000..2253a34
--- /dev/null
+++ b/tests/hash:mac.t.list3
@@ -0,0 +1,8 @@
+Name: test
+Type: hash:mac
+Header: hashsize 1024 maxelem 2 skbinfo
+Size in memory: 16792
+References: 0
+Members:
+01:02:03:04:05:06 skbprio 1:10
+01:02:03:04:05:07 skbprio 1:12 skbqueue 8