Add RPCs to add/delete a secret to/from an existing authentication group
dynamically.
Use mutex to ensure exclusive access to CHAP secrets.
Tries to use descriptive message in RPCs when error occurs.
Change-Id: I59650ae11a2fe675d03b90bbd4d2dc5b9c0160ed
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/421465
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>