From 42a4d8e62b1000b8e600a2eb1d96cf424d63984b Mon Sep 17 00:00:00 2001
From: Vincent Batts <vbatts@hashbangbash.com>
Date: Sun, 5 Nov 2017 20:51:37 -0500
Subject: [PATCH] document the device permissions

---
 README.md              |   28 +-
 config-eperm.json      |  243 -----
 config-privileged.json | 2307 ----------------------------------------
 config.json            |  251 ++++-
 4 files changed, 273 insertions(+), 2556 deletions(-)
 delete mode 100644 config-eperm.json
 delete mode 100644 config-privileged.json
 mode change 120000 => 100644 config.json

diff --git a/README.md b/README.md
index 4066bcb..fafb835 100644
--- a/README.md
+++ b/README.md
@@ -33,20 +33,38 @@ $> sudo dmesg | tail -1
 
 ### Container
 
-Running ioctl's inside containers is a little tricky.
 Assuming we've already `insmod` the module above:
 
 ```shell
-sudo docker run -it --rm -v $(pwd)/helloctl/helloctl:/usr/bin/helloctl:ro -v /dev/helloctl:/dev/helloctl:ro fedora /usr/bin/helloctl
+sudo docker run -it --rm -v $(pwd)/helloctl/helloctl:/usr/bin/helloctl:ro --device /dev/helloctl fedora /usr/bin/helloctl
 ```
 
-You'll get a failure `Could not open /dev/helloctl`
+Now `dmesg | tail` will reflect the command ran successfully, but at the sake of running an non-isolated container.
+
+### runc
+
+Determining major/minor for setting permissions requires inserting the module, then collecting the major/minor device, and putting that to a runc `config.json`.
 
 ```shell
-sudo docker run -it --rm -v $(pwd)/helloctl/helloctl:/usr/bin/helloctl:ro -v /dev/helloctl:/dev/helloctl:ro --privileged fedora /usr/bin/helloctl
+$> stat -c "%t %T" /dev/helloctl
+a 39
+$> echo "$((16#$(stat -c "%t" /dev/helloctl )))"
+10
+$> echo "$((16#$(stat -c "%T" /dev/helloctl )))"
+57
 ```
 
-Now `dmesg | tail` will reflect the command ran successfully.
+Now in the `config.json`, under `linux.resources.devices`, that array, it needs the following with the major/minor integers from your `/dev/helloctl`:
+
+```json
+        {
+          "allow": true,
+          "type": "c",
+          "major": 10,
+          "minor": 57,
+          "access": "rwm"
+        },
+```
 
 ### cleanup
 
diff --git a/config-eperm.json b/config-eperm.json
deleted file mode 100644
index 85d3208..0000000
--- a/config-eperm.json
+++ /dev/null
@@ -1,243 +0,0 @@
-{
-  "ociVersion": "1.0.0-rc2-dev",
-  "platform": {
-    "os": "linux",
-    "arch": "amd64"
-  },
-  "process": {
-    "terminal": true,
-    "consoleSize": {
-      "height": 0,
-      "width": 0
-    },
-    "user": {
-      "uid": 0,
-      "gid": 0
-    },
-    "args": [
-      "/usr/bin/strace", "/usr/bin/helloctl"
-    ],
-    "env": [
-      "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
-      "HOSTNAME=helloctl",
-      "TERM=xterm",
-      "DISTTAG=f26container",
-      "FGC=f26"
-    ],
-    "cwd": "/",
-    "capabilities": [
-      "CAP_CHOWN",
-      "CAP_DAC_OVERRIDE",
-      "CAP_FSETID",
-      "CAP_FOWNER",
-      "CAP_MKNOD",
-      "CAP_NET_RAW",
-      "CAP_SETGID",
-      "CAP_SETUID",
-      "CAP_SETFCAP",
-      "CAP_SETPCAP",
-      "CAP_NET_BIND_SERVICE",
-      "CAP_SYS_CHROOT",
-      "CAP_KILL",
-      "CAP_AUDIT_WRITE",
-      "CAP_SYS_PTRACE"
-    ]
-  },
-  "root": {
-    "path": "./rootfs/"
-  },
-  "hostname": "helloctl",
-  "mounts": [
-    {
-      "destination": "/proc",
-      "type": "proc",
-      "source": "proc",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/dev",
-      "type": "tmpfs",
-      "source": "tmpfs",
-      "options": [
-        "nosuid",
-        "strictatime",
-        "mode=755"
-      ]
-    },
-    {
-      "destination": "/dev/pts",
-      "type": "devpts",
-      "source": "devpts",
-      "options": [
-        "nosuid",
-        "noexec",
-        "newinstance",
-        "ptmxmode=0666",
-        "mode=0620",
-        "gid=5"
-      ]
-    },
-    {
-      "destination": "/sys",
-      "type": "sysfs",
-      "source": "sysfs",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev",
-        "ro"
-      ]
-    },
-    {
-      "destination": "/sys/fs/cgroup",
-      "type": "cgroup",
-      "source": "cgroup",
-      "options": [
-        "ro",
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/dev/mqueue",
-      "type": "mqueue",
-      "source": "mqueue",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/dev/helloctl",
-      "type": "bind",
-      "source": "/dev/helloctl",
-      "options": [
-        "rbind",
-        "ro",
-        "rprivate"
-      ]
-    },
-    {
-      "destination": "/usr/bin/helloctl",
-      "type": "bind",
-      "source": "./helloctl/helloctl",
-      "options": [
-        "rbind",
-        "ro",
-        "rprivate"
-      ]
-    }
-  ],
-  "hooks": {
-    "prestart": [ ],
-    "poststop": [ ]
-  },
-  "linux": {
-    "resources": {
-      "devices": [
-        {
-          "allow": false,
-          "access": "rwm"
-        },
-        {
-          "allow": true,
-          "type": "c",
-          "major": 1,
-          "minor": 5,
-          "access": "rwm"
-        },
-        {
-          "allow": true,
-          "type": "c",
-          "major": 1,
-          "minor": 3,
-          "access": "rwm"
-        },
-        {
-          "allow": true,
-          "type": "c",
-          "major": 1,
-          "minor": 9,
-          "access": "rwm"
-        },
-        {
-          "allow": true,
-          "type": "c",
-          "major": 1,
-          "minor": 8,
-          "access": "rwm"
-        },
-        {
-          "allow": true,
-          "type": "c",
-          "major": 5,
-          "minor": 0,
-          "access": "rwm"
-        },
-        {
-          "allow": true,
-          "type": "c",
-          "major": 5,
-          "minor": 1,
-          "access": "rwm"
-        },
-        {
-          "allow": false,
-          "type": "c",
-          "major": 10,
-          "minor": 229,
-          "access": "rwm"
-        }
-      ],
-      "disableOOMKiller": false,
-      "oomScoreAdj": 0,
-      "cpu": {},
-      "pids": {
-        "limit": 0
-      },
-      "blockIO": {
-        "blkioWeight": 0
-      }
-    },
-    "cgroupsPath": "system.slice:docker:8ad3dfde3644481046eace9cd586600f0416d3c43b4b9f4cc161c470859c0e17",
-    "namespaces": [
-      {
-        "type": "mount"
-      },
-      {
-        "type": "network"
-      },
-      {
-        "type": "uts"
-      },
-      {
-        "type": "pid"
-      },
-      {
-        "type": "ipc"
-      }
-    ],
-    "maskedPaths": [
-      "/proc/kcore",
-      "/proc/latency_stats",
-      "/proc/timer_list",
-      "/proc/timer_stats",
-      "/proc/sched_debug",
-      "/sys/firmware"
-    ],
-    "readonlyPaths": [
-      "/proc/asound",
-      "/proc/bus",
-      "/proc/fs",
-      "/proc/irq",
-      "/proc/sys",
-      "/proc/sysrq-trigger"
-    ]
-  }
-}
diff --git a/config-privileged.json b/config-privileged.json
deleted file mode 100644
index 11e81d0..0000000
--- a/config-privileged.json
+++ /dev/null
@@ -1,2307 +0,0 @@
-{
-  "ociVersion": "1.0.0-rc2-dev",
-  "platform": {
-    "os": "linux",
-    "arch": "amd64"
-  },
-  "process": {
-    "terminal": true,
-    "consoleSize": {
-      "height": 0,
-      "width": 0
-    },
-    "user": {
-      "uid": 0,
-      "gid": 0
-    },
-    "args": [
-      "/usr/bin/strace", "/usr/bin/helloctl"
-    ],
-    "env": [
-      "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
-      "HOSTNAME=helloctl",
-      "TERM=xterm",
-      "DISTTAG=f26container",
-      "FGC=f26"
-    ],
-    "cwd": "/",
-    "capabilities": [
-      "CAP_CHOWN",
-      "CAP_DAC_OVERRIDE",
-      "CAP_DAC_READ_SEARCH",
-      "CAP_FOWNER",
-      "CAP_FSETID",
-      "CAP_KILL",
-      "CAP_SETGID",
-      "CAP_SETUID",
-      "CAP_SETPCAP",
-      "CAP_LINUX_IMMUTABLE",
-      "CAP_NET_BIND_SERVICE",
-      "CAP_NET_BROADCAST",
-      "CAP_NET_ADMIN",
-      "CAP_NET_RAW",
-      "CAP_IPC_LOCK",
-      "CAP_IPC_OWNER",
-      "CAP_SYS_MODULE",
-      "CAP_SYS_RAWIO",
-      "CAP_SYS_CHROOT",
-      "CAP_SYS_PTRACE",
-      "CAP_SYS_PACCT",
-      "CAP_SYS_ADMIN",
-      "CAP_SYS_BOOT",
-      "CAP_SYS_NICE",
-      "CAP_SYS_RESOURCE",
-      "CAP_SYS_TIME",
-      "CAP_SYS_TTY_CONFIG",
-      "CAP_MKNOD",
-      "CAP_LEASE",
-      "CAP_AUDIT_WRITE",
-      "CAP_AUDIT_CONTROL",
-      "CAP_SETFCAP",
-      "CAP_MAC_OVERRIDE",
-      "CAP_MAC_ADMIN",
-      "CAP_SYSLOG",
-      "CAP_WAKE_ALARM",
-      "CAP_BLOCK_SUSPEND",
-      "CAP_AUDIT_READ"
-    ]
-  },
-  "root": {
-    "path": "./rootfs/"
-  },
-  "hostname": "helloctl",
-  "mounts": [
-    {
-      "destination": "/proc",
-      "type": "proc",
-      "source": "proc",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/dev",
-      "type": "tmpfs",
-      "source": "tmpfs",
-      "options": [
-        "nosuid",
-        "strictatime",
-        "mode=755"
-      ]
-    },
-    {
-      "destination": "/dev/pts",
-      "type": "devpts",
-      "source": "devpts",
-      "options": [
-        "nosuid",
-        "noexec",
-        "newinstance",
-        "ptmxmode=0666",
-        "mode=0620",
-        "gid=5"
-      ]
-    },
-    {
-      "destination": "/sys",
-      "type": "sysfs",
-      "source": "sysfs",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/sys/fs/cgroup",
-      "type": "cgroup",
-      "source": "cgroup",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/dev/mqueue",
-      "type": "mqueue",
-      "source": "mqueue",
-      "options": [
-        "nosuid",
-        "noexec",
-        "nodev"
-      ]
-    },
-    {
-      "destination": "/dev/helloctl",
-      "type": "bind",
-      "source": "/dev/helloctl",
-      "options": [
-        "rbind",
-        "ro",
-        "rprivate"
-      ]
-    },
-    {
-      "destination": "/usr/bin/helloctl",
-      "type": "bind",
-      "source": "./helloctl/helloctl",
-      "options": [
-        "rbind",
-        "ro",
-        "rprivate"
-      ]
-    }
-  ],
-  "hooks": {
-    "prestart": [ ],
-    "poststop": [ ]
-  },
-  "linux": {
-    "resources": {
-      "devices": [
-        {
-          "allow": true,
-          "access": "rwm"
-        }
-      ],
-      "disableOOMKiller": false,
-      "oomScoreAdj": 0,
-      "cpu": {},
-      "pids": {
-        "limit": 0
-      },
-      "blockIO": {
-        "blkioWeight": 0
-      }
-    },
-    "cgroupsPath": "system.slice:docker:0d4ed9e0bccb2c1cd75a4c06e721b433f6b0aec3c9d7220df7114468d620ae05",
-    "namespaces": [
-      {
-        "type": "mount"
-      },
-      {
-        "type": "network"
-      },
-      {
-        "type": "uts"
-      },
-      {
-        "type": "pid"
-      },
-      {
-        "type": "ipc"
-      }
-    ],
-    "devices": [
-      {
-        "path": "/dev/autofs",
-        "type": "c",
-        "major": 10,
-        "minor": 235,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bsg/2:0:0:0",
-        "type": "c",
-        "major": 248,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bsg/3:0:0:0",
-        "type": "c",
-        "major": 248,
-        "minor": 1,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/btrfs-control",
-        "type": "c",
-        "major": 10,
-        "minor": 234,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 6
-      },
-      {
-        "path": "/dev/bus/usb/001/001",
-        "type": "c",
-        "major": 189,
-        "minor": 0,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/002",
-        "type": "c",
-        "major": 189,
-        "minor": 1,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/003",
-        "type": "c",
-        "major": 189,
-        "minor": 2,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/004",
-        "type": "c",
-        "major": 189,
-        "minor": 3,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 7
-      },
-      {
-        "path": "/dev/bus/usb/001/005",
-        "type": "c",
-        "major": 189,
-        "minor": 4,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/006",
-        "type": "c",
-        "major": 189,
-        "minor": 5,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/008",
-        "type": "c",
-        "major": 189,
-        "minor": 7,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/015",
-        "type": "c",
-        "major": 189,
-        "minor": 14,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/018",
-        "type": "c",
-        "major": 189,
-        "minor": 17,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/001/020",
-        "type": "c",
-        "major": 189,
-        "minor": 19,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/002/001",
-        "type": "c",
-        "major": 189,
-        "minor": 128,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/003/001",
-        "type": "c",
-        "major": 189,
-        "minor": 256,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/bus/usb/004/001",
-        "type": "c",
-        "major": 189,
-        "minor": 384,
-        "fileMode": 8628,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/0/cpuid",
-        "type": "c",
-        "major": 203,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/0/msr",
-        "type": "c",
-        "major": 202,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/1/cpuid",
-        "type": "c",
-        "major": 203,
-        "minor": 1,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/1/msr",
-        "type": "c",
-        "major": 202,
-        "minor": 1,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/2/cpuid",
-        "type": "c",
-        "major": 203,
-        "minor": 2,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/2/msr",
-        "type": "c",
-        "major": 202,
-        "minor": 2,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/3/cpuid",
-        "type": "c",
-        "major": 203,
-        "minor": 3,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/3/msr",
-        "type": "c",
-        "major": 202,
-        "minor": 3,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu/microcode",
-        "type": "c",
-        "major": 10,
-        "minor": 184,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cpu_dma_latency",
-        "type": "c",
-        "major": 10,
-        "minor": 62,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/cuse",
-        "type": "c",
-        "major": 10,
-        "minor": 203,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/dm-0",
-        "type": "b",
-        "major": 253,
-        "minor": 0,
-        "fileMode": 25008,
-        "uid": 0,
-        "gid": 6
-      },
-      {
-        "path": "/dev/dm-1",
-        "type": "b",
-        "major": 253,
-        "minor": 1,
-        "fileMode": 25008,
-        "uid": 0,
-        "gid": 6
-      },
-      {
-        "path": "/dev/dm-2",
-        "type": "b",
-        "major": 253,
-        "minor": 2,
-        "fileMode": 25008,
-        "uid": 0,
-        "gid": 6
-      },
-      {
-        "path": "/dev/dri/card0",
-        "type": "c",
-        "major": 226,
-        "minor": 0,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 39
-      },
-      {
-        "path": "/dev/dri/renderD128",
-        "type": "c",
-        "major": 226,
-        "minor": 128,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 39
-      },
-      {
-        "path": "/dev/drm_dp_aux0",
-        "type": "c",
-        "major": 243,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/fb0",
-        "type": "c",
-        "major": 29,
-        "minor": 0,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 39
-      },
-      {
-        "path": "/dev/full",
-        "type": "c",
-        "major": 1,
-        "minor": 7,
-        "fileMode": 8630,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/fuse",
-        "type": "c",
-        "major": 10,
-        "minor": 229,
-        "fileMode": 8630,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/helloctl",
-        "type": "c",
-        "major": 10,
-        "minor": 57,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/hidraw0",
-        "type": "c",
-        "major": 246,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/hidraw1",
-        "type": "c",
-        "major": 246,
-        "minor": 1,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
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-        "path": "/dev/tty42",
-        "type": "c",
-        "major": 4,
-        "minor": 42,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty43",
-        "type": "c",
-        "major": 4,
-        "minor": 43,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty44",
-        "type": "c",
-        "major": 4,
-        "minor": 44,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty45",
-        "type": "c",
-        "major": 4,
-        "minor": 45,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty46",
-        "type": "c",
-        "major": 4,
-        "minor": 46,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty47",
-        "type": "c",
-        "major": 4,
-        "minor": 47,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty48",
-        "type": "c",
-        "major": 4,
-        "minor": 48,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty49",
-        "type": "c",
-        "major": 4,
-        "minor": 49,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty5",
-        "type": "c",
-        "major": 4,
-        "minor": 5,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty50",
-        "type": "c",
-        "major": 4,
-        "minor": 50,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty51",
-        "type": "c",
-        "major": 4,
-        "minor": 51,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty52",
-        "type": "c",
-        "major": 4,
-        "minor": 52,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty53",
-        "type": "c",
-        "major": 4,
-        "minor": 53,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty54",
-        "type": "c",
-        "major": 4,
-        "minor": 54,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty55",
-        "type": "c",
-        "major": 4,
-        "minor": 55,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty56",
-        "type": "c",
-        "major": 4,
-        "minor": 56,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty57",
-        "type": "c",
-        "major": 4,
-        "minor": 57,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty58",
-        "type": "c",
-        "major": 4,
-        "minor": 58,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty59",
-        "type": "c",
-        "major": 4,
-        "minor": 59,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty6",
-        "type": "c",
-        "major": 4,
-        "minor": 6,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty60",
-        "type": "c",
-        "major": 4,
-        "minor": 60,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty61",
-        "type": "c",
-        "major": 4,
-        "minor": 61,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty62",
-        "type": "c",
-        "major": 4,
-        "minor": 62,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty63",
-        "type": "c",
-        "major": 4,
-        "minor": 63,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty7",
-        "type": "c",
-        "major": 4,
-        "minor": 7,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty8",
-        "type": "c",
-        "major": 4,
-        "minor": 8,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/tty9",
-        "type": "c",
-        "major": 4,
-        "minor": 9,
-        "fileMode": 8592,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/ttyS0",
-        "type": "c",
-        "major": 4,
-        "minor": 64,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS1",
-        "type": "c",
-        "major": 4,
-        "minor": 65,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS10",
-        "type": "c",
-        "major": 4,
-        "minor": 74,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS11",
-        "type": "c",
-        "major": 4,
-        "minor": 75,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS12",
-        "type": "c",
-        "major": 4,
-        "minor": 76,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS13",
-        "type": "c",
-        "major": 4,
-        "minor": 77,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS14",
-        "type": "c",
-        "major": 4,
-        "minor": 78,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS15",
-        "type": "c",
-        "major": 4,
-        "minor": 79,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS16",
-        "type": "c",
-        "major": 4,
-        "minor": 80,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS17",
-        "type": "c",
-        "major": 4,
-        "minor": 81,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS18",
-        "type": "c",
-        "major": 4,
-        "minor": 82,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS19",
-        "type": "c",
-        "major": 4,
-        "minor": 83,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS2",
-        "type": "c",
-        "major": 4,
-        "minor": 66,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS20",
-        "type": "c",
-        "major": 4,
-        "minor": 84,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS21",
-        "type": "c",
-        "major": 4,
-        "minor": 85,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS22",
-        "type": "c",
-        "major": 4,
-        "minor": 86,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS23",
-        "type": "c",
-        "major": 4,
-        "minor": 87,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS24",
-        "type": "c",
-        "major": 4,
-        "minor": 88,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS25",
-        "type": "c",
-        "major": 4,
-        "minor": 89,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS26",
-        "type": "c",
-        "major": 4,
-        "minor": 90,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS27",
-        "type": "c",
-        "major": 4,
-        "minor": 91,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS28",
-        "type": "c",
-        "major": 4,
-        "minor": 92,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS29",
-        "type": "c",
-        "major": 4,
-        "minor": 93,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS3",
-        "type": "c",
-        "major": 4,
-        "minor": 67,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS30",
-        "type": "c",
-        "major": 4,
-        "minor": 94,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS31",
-        "type": "c",
-        "major": 4,
-        "minor": 95,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS4",
-        "type": "c",
-        "major": 4,
-        "minor": 68,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS5",
-        "type": "c",
-        "major": 4,
-        "minor": 69,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS6",
-        "type": "c",
-        "major": 4,
-        "minor": 70,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS7",
-        "type": "c",
-        "major": 4,
-        "minor": 71,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS8",
-        "type": "c",
-        "major": 4,
-        "minor": 72,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/ttyS9",
-        "type": "c",
-        "major": 4,
-        "minor": 73,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 18
-      },
-      {
-        "path": "/dev/uhid",
-        "type": "c",
-        "major": 10,
-        "minor": 239,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/uinput",
-        "type": "c",
-        "major": 10,
-        "minor": 223,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/urandom",
-        "type": "c",
-        "major": 1,
-        "minor": 9,
-        "fileMode": 8630,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/usb/hiddev0",
-        "type": "c",
-        "major": 180,
-        "minor": 96,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/usb/lp0",
-        "type": "c",
-        "major": 180,
-        "minor": 0,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 7
-      },
-      {
-        "path": "/dev/usbmon0",
-        "type": "c",
-        "major": 247,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/usbmon1",
-        "type": "c",
-        "major": 247,
-        "minor": 1,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/usbmon2",
-        "type": "c",
-        "major": 247,
-        "minor": 2,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/usbmon3",
-        "type": "c",
-        "major": 247,
-        "minor": 3,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/usbmon4",
-        "type": "c",
-        "major": 247,
-        "minor": 4,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/vcs",
-        "type": "c",
-        "major": 7,
-        "minor": 0,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcs1",
-        "type": "c",
-        "major": 7,
-        "minor": 1,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcs2",
-        "type": "c",
-        "major": 7,
-        "minor": 2,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcs3",
-        "type": "c",
-        "major": 7,
-        "minor": 3,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcs4",
-        "type": "c",
-        "major": 7,
-        "minor": 4,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcs5",
-        "type": "c",
-        "major": 7,
-        "minor": 5,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcs6",
-        "type": "c",
-        "major": 7,
-        "minor": 6,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa",
-        "type": "c",
-        "major": 7,
-        "minor": 128,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa1",
-        "type": "c",
-        "major": 7,
-        "minor": 129,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa2",
-        "type": "c",
-        "major": 7,
-        "minor": 130,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa3",
-        "type": "c",
-        "major": 7,
-        "minor": 131,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa4",
-        "type": "c",
-        "major": 7,
-        "minor": 132,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa5",
-        "type": "c",
-        "major": 7,
-        "minor": 133,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vcsa6",
-        "type": "c",
-        "major": 7,
-        "minor": 134,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 5
-      },
-      {
-        "path": "/dev/vfio/vfio",
-        "type": "c",
-        "major": 10,
-        "minor": 196,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/vga_arbiter",
-        "type": "c",
-        "major": 10,
-        "minor": 63,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/vhci",
-        "type": "c",
-        "major": 10,
-        "minor": 137,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/vhost-net",
-        "type": "c",
-        "major": 10,
-        "minor": 238,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/vhost-vsock",
-        "type": "c",
-        "major": 10,
-        "minor": 241,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/video0",
-        "type": "c",
-        "major": 81,
-        "minor": 0,
-        "fileMode": 8624,
-        "uid": 0,
-        "gid": 39
-      },
-      {
-        "path": "/dev/watchdog",
-        "type": "c",
-        "major": 10,
-        "minor": 130,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/watchdog0",
-        "type": "c",
-        "major": 249,
-        "minor": 0,
-        "fileMode": 8576,
-        "uid": 0,
-        "gid": 0
-      },
-      {
-        "path": "/dev/zero",
-        "type": "c",
-        "major": 1,
-        "minor": 5,
-        "fileMode": 8630,
-        "uid": 0,
-        "gid": 0
-      }
-    ]
-  }
-}
diff --git a/config.json b/config.json
deleted file mode 120000
index 66b9520..0000000
--- a/config.json
+++ /dev/null
@@ -1 +0,0 @@
-config-eperm.json
\ No newline at end of file
diff --git a/config.json b/config.json
new file mode 100644
index 0000000..e500204
--- /dev/null
+++ b/config.json
@@ -0,0 +1,250 @@
+{
+  "ociVersion": "1.0.0-rc2-dev",
+  "platform": {
+    "os": "linux",
+    "arch": "amd64"
+  },
+  "process": {
+    "terminal": true,
+    "consoleSize": {
+      "height": 0,
+      "width": 0
+    },
+    "user": {
+      "uid": 0,
+      "gid": 0
+    },
+    "args": [
+      "/usr/bin/helloctl"
+    ],
+    "env": [
+      "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
+      "HOSTNAME=helloctl",
+      "TERM=xterm",
+      "DISTTAG=f26container",
+      "FGC=f26"
+    ],
+    "cwd": "/",
+    "capabilities": [
+      "CAP_CHOWN",
+      "CAP_DAC_OVERRIDE",
+      "CAP_FSETID",
+      "CAP_FOWNER",
+      "CAP_MKNOD",
+      "CAP_NET_RAW",
+      "CAP_SETGID",
+      "CAP_SETUID",
+      "CAP_SETFCAP",
+      "CAP_SETPCAP",
+      "CAP_NET_BIND_SERVICE",
+      "CAP_SYS_CHROOT",
+      "CAP_KILL",
+      "CAP_AUDIT_WRITE",
+      "CAP_SYS_PTRACE"
+    ]
+  },
+  "root": {
+    "path": "./rootfs/"
+  },
+  "hostname": "helloctl",
+  "mounts": [
+    {
+      "destination": "/proc",
+      "type": "proc",
+      "source": "proc",
+      "options": [
+        "nosuid",
+        "noexec",
+        "nodev"
+      ]
+    },
+    {
+      "destination": "/dev",
+      "type": "tmpfs",
+      "source": "tmpfs",
+      "options": [
+        "nosuid",
+        "strictatime",
+        "mode=755"
+      ]
+    },
+    {
+      "destination": "/dev/pts",
+      "type": "devpts",
+      "source": "devpts",
+      "options": [
+        "nosuid",
+        "noexec",
+        "newinstance",
+        "ptmxmode=0666",
+        "mode=0620",
+        "gid=5"
+      ]
+    },
+    {
+      "destination": "/sys",
+      "type": "sysfs",
+      "source": "sysfs",
+      "options": [
+        "nosuid",
+        "noexec",
+        "nodev",
+        "ro"
+      ]
+    },
+    {
+      "destination": "/sys/fs/cgroup",
+      "type": "cgroup",
+      "source": "cgroup",
+      "options": [
+        "ro",
+        "nosuid",
+        "noexec",
+        "nodev"
+      ]
+    },
+    {
+      "destination": "/dev/mqueue",
+      "type": "mqueue",
+      "source": "mqueue",
+      "options": [
+        "nosuid",
+        "noexec",
+        "nodev"
+      ]
+    },
+    {
+      "destination": "/dev/helloctl",
+      "type": "bind",
+      "source": "/dev/helloctl",
+      "options": [
+        "rbind",
+        "ro",
+        "rprivate"
+      ]
+    },
+    {
+      "destination": "/usr/bin/helloctl",
+      "type": "bind",
+      "source": "./helloctl/helloctl",
+      "options": [
+        "rbind",
+        "ro",
+        "rprivate"
+      ]
+    }
+  ],
+  "hooks": {
+    "prestart": [ ],
+    "poststop": [ ]
+  },
+  "linux": {
+    "resources": {
+      "devices": [
+        {
+          "allow": false,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 1,
+          "minor": 5,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 1,
+          "minor": 3,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 1,
+          "minor": 9,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 1,
+          "minor": 8,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 5,
+          "minor": 0,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 5,
+          "minor": 1,
+          "access": "rwm"
+        },
+        {
+          "allow": true,
+          "type": "c",
+          "major": 10,
+          "minor": 57,
+          "access": "rwm"
+        },
+        {
+          "allow": false,
+          "type": "c",
+          "major": 10,
+          "minor": 229,
+          "access": "rwm"
+        }
+      ],
+      "disableOOMKiller": false,
+      "oomScoreAdj": 0,
+      "cpu": {},
+      "pids": {
+        "limit": 0
+      },
+      "blockIO": {
+        "blkioWeight": 0
+      }
+    },
+    "cgroupsPath": "system.slice:docker:8ad3dfde3644481046eace9cd586600f0416d3c43b4b9f4cc161c470859c0e17",
+    "namespaces": [
+      {
+        "type": "mount"
+      },
+      {
+        "type": "network"
+      },
+      {
+        "type": "uts"
+      },
+      {
+        "type": "pid"
+      },
+      {
+        "type": "ipc"
+      }
+    ],
+    "maskedPaths": [
+      "/proc/kcore",
+      "/proc/latency_stats",
+      "/proc/timer_list",
+      "/proc/timer_stats",
+      "/proc/sched_debug",
+      "/sys/firmware"
+    ],
+    "readonlyPaths": [
+      "/proc/asound",
+      "/proc/bus",
+      "/proc/fs",
+      "/proc/irq",
+      "/proc/sys",
+      "/proc/sysrq-trigger"
+    ]
+  }
+}