PR_ALLOW_READ_MSGBUF
{"allow.read_msgbuf", "allow.noread_msgbuf", PR_ALLOW_READ_MSGBUF},
if (cred->cr_prison->pr_allow & PR_ALLOW_READ_MSGBUF)
PR_ALLOW_SOCKET_AF | PR_ALLOW_MLOCK | PR_ALLOW_READ_MSGBUF | \