Public bug reported:
Binary package hint: ipset
Note: this bug is slightly related to bug 79182 but is no duplicate.
I installed ipset 2.3.0-1 on hardy alpha6 and ran "ipset -H ipmap".
Gutsy has the same problem.
It yields this error: ipset v2.3.0: Couldn't load settype
`ipmap':/usr/lib/ipset/libipset_ipmap.so: undefined symbol:
__stack_chk_fail_local
The same error will occur with kernel support, as soon as you try to
create an ipset of type ipmap (other types are not affected). e.g. ipset
-A myTestSet ipmap
This error is caused by compiling the shared libs, especially
libipset_ipmap.so (residing in /usr/lib/ipset/) with the gcc stack-
protector enabled. A workaround is this tiny patch to the Makefile of
ipset userspace tool:
### start
--- Makefile-orig 2008-03-07 17:13:16.000000000 +0100
+++ Makefile 2008-03-10 11:40:34.000000000 +0100
@@ -22,7 +22,7 @@
COPT_FLAGS:=-O2
CFLAGS:=$(COPT_FLAGS) -Wall -Wunused -I$(KERNEL_DIR)/include -I. -g
-DIPSET_DEBUG #-pg # -DIPTC_DEBUG
-SH_CFLAGS:=$(CFLAGS) -fPIC
+SH_CFLAGS:=$(CFLAGS) -fno-stack-protector -fPIC
SETTYPES:=ipmap portmap macipmap iphash nethash iptree iptreemap ipporthash
PROGRAMS=ipset
### end
A far cooler solution would be fixing the real cause of the problem:
dlopen (called in ipset.c) seems to have some issues with gcc's stack-
protector.
** Affects: ipset (Ubuntu)
Importance: Undecided
Status: New
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ipset broken ipmap dynamic linking
https://bugs.launchpad.net/bugs/200561
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