CONFIG_XFRM_ALGO (not configurable)

modulename: xfrm_algo.ko

configname: CONFIG_XFRM_ALGO

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>XFRM_ALGO
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
net/xfrm/xfrm_algo.c

depends
CONFIG_NET