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--- home [2023/10/04 06:34] – 6.1 is stable ao
+++ home [2024/10/29 09:22] (current) – New request types GET_XATTR and MODIFY_XATTR on FD targets ao
@@ Line 1: / Line 1: @@
+== New request types GET_XATTR and MODIFY_XATTR on FD targets ==
+//Tuesday, 29/Oct/2024//
+The system call families getxattr() and setxattr() used to be intercepted with requests GET_PERMISSIONS_DATA and MODIFY_PERMISSIONS_DATA. Since extended attributes do much more than Linux access control with ACLs, we needed a way to distinguish these types of access.
+I decided to introduce the new request types GET_XATTR and MODIFY_XATTR for them, valid for all FD targets. The changes are in the kernel Git repos for 6.6, 6.1, 5.15 and 5.10 as well as in the rsbac-admin repo for administration. Older kernels remain unchanged.
+== RSBAC stable with kernel 6.6 ==
+//Wednesday, 26/Jun/2024//
+RSBAC with kernel 6.6 is now recommended. It has been running very well for months.
+== RSBAC for kernel 6.6 ==
+//Thursday, 11/Jan/2024//
+RSBAC has been ported successfully to LTS kernel 6.6. Internal kernel changes to the Linux caps structure required new on-disk versions of all RSBAC lists holding cap vectors.
+I took the chance to default CONFIG_RSBAC_MOVETO to yes with 6.6 and auto-adjust RC and ACL FD lists with new versions, too. Existing WRITE right to FD targets gets amended with MOVETO during list upgrade to avoid unexpected behaviour.
+The automatic list version upgrades mean that going back to previous kernels might show invalid lists, you need to boot with rsbac_list_recover kernel parameter and set cap related and RC and ACL FD values again.
+In my tests, 6.6 seems to be running pretty well, please give it a try and report. Patches are at https://download.rsbac.org/latestdiff/6.6/
 == RSBAC very stable with kernel 6.1 ==
 //Wednesday, 04/Oct/2023//

//