/usr/src/west-chamber-20100405+svn20111107.r124/extensions/ is in west-chamber-dkms 20100405+svn20111107.r124-5.
This file is owned by root:root, with mode 0o755.
..
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/Kbuild
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/Makefile
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/Makefile.in
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/libxt_CUI.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/libxt_UDPENCAP.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/libxt_ZHANG.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/libxt_gfw.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/xt_CUI.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/xt_UDPENCAP.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/xt_ZHANG.c
/usr/src/west-chamber-20100405+svn20111107.r124/extensions/xt_gfw.c