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July 2022

3 participants
2 discussions

dlopen issues on Almalinux9
by Bill Campbell 15 Jul '22

15 Jul '22

I'm trying to build freeradius from the git version 4.0.0 on Almalinux9, but having problems with failures building the included dlopen.c. Building under the OpenPKG package management system. # uname -a Linux almadev9.mi.celestial.com 5.14.0-70.13.1.el9_0.x86_64 #1 SMP PREEMPT Tue May 17 15:53:11 EDT 2022 x86_64 x86_64 x86_64 GNU/Linux gcc-11.2.0 binutils-2.38 automake-1.16.5 autoconf-2.71 libtool-2.4.6 The compile is failing with __GLIBC_USE and __GNUC_PREREQ errors. The configure script finds the system's -ldl, but I haven't been able to figure out how to use that instead of the included dlopen. I've had similar results trying to build on the latest versions of 64-bit Raspberry Pi Linux. Bill -- INTERNET: bill(a)celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax: (206) 232-9186 Mercer Island, WA 98040-0820

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dynamic clients configuration may cause radiusd 3.2.0 (and earlier) to hang
by Sam Yee 13 Jul '22

13 Jul '22

Hi freeradius devs. I was able to cause radiusd to hang by configuring a dynamic client in SQL using the same shared secret of an existing static client. It causes a loop in a linked list. Here is the fix: --- cut --- --- freeradius-server-3.2.0/src/main/client.c.orig 2022-04-21 13:11:17.000000000 -0700 +++ freeradius-server-3.2.0/src/main/client.c 2022-07-12 16:05:13.900988256 -0700 @@ -1425,7 +1425,13 @@ } else { RDEBUG2("%s = %s", cf_pair_attr(cp), cf_pair_value(cp)); } - cf_pair_add(c->cs, cp); + + if (cp != NULL) + { + cf_pair_add(c->cs, cp); + } + + cp = NULL; talloc_free(vp); } --- cut --- After calling cf_pair_add(), cp is added to the list. In the next loop iteration, cp may not be re-allocated, and it is attempted to be re-added to the list. cp's next pointer points back to itself. Please let me know if the fix can make it to the next stable release. Thanks, Sam

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