170 lines
6.6 KiB
Protocol Buffer
170 lines
6.6 KiB
Protocol Buffer
syntax = "proto2";
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package nsjail;
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enum Mode {
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LISTEN = 0; /* Listening on a TCP port */
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ONCE = 1; /* Running the command once only */
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RERUN = 2; /* Re-executing the command (forever) */
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EXECVE = 3; /* Executing command w/o the supervisor */
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}
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/* Should be self explanatory */
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enum LogLevel {
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DEBUG = 0;
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INFO = 1;
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WARNING = 2;
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ERROR = 3;
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FATAL = 4;
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}
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message IdMap {
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/* Empty string means "current uid/gid" */
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required string inside_id = 1 [default = ""];
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required string outside_id = 2 [default = ""];
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/* 'man user_namespaces' for the meaning of count */
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required uint32 count = 3 [default = 1];
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/* Does this map use /usr/bin/new[u|g]idmap binary? */
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required bool use_newidmap = 4 [default = false];
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}
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message MountPt {
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/* Can be empty string for filesystems like 'proc' */
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required string src = 1;
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required string dst = 2;
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/* Can be empty for mount --bind mounts */
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required string fstype = 3;
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/* E.g. size=5000000 for 'tmpfs' */
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required string options = 4 [default = ""];
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/* Is it 'mount --bind src dst' type of mount */
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required bool is_bind = 5 [default = false];
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/* It it RO mount */
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required bool is_ro = 6 [default = false];
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/* Is it directory? If not specified an internal
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* heuristics will be used to determine that */
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optional bool is_dir = 7;
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}
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message Exe {
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/* This will be usef both for path and for argv[0] */
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required string path = 1;
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/* This will be argv[1] and so on.. */
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repeated string arg = 2;
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}
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message NsJailConfig {
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/* Execution mode: see 'msg Mode' description for more */
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required Mode mode = 1 [default = ONCE];
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/* Equivalent to a mount with dst='/' */
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optional string chroot_dir = 2;
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/* Applies both to the chroot_dir and to /proc mounts */
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required bool is_root_rw = 3 [default = false];
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/* Hostname inside jail */
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required string hostname = 6 [default = "NSJAIL"];
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/* Initial current working directory for the binary */
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required string cwd = 7 [default = "/"];
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/* TCP port to listen to. Valid with mode=LISTEN only */
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required uint32 port = 8 [default = 0];
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/* Host to bind to for mode=LISTEN. Must be in IPv6 format */
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required string bindhost = 9 [default = "::"];
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/* For mode=LISTEN, maximum number of connections from a single IP */
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required uint32 max_conns_per_ip = 10 [default = 0];
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/* Wall-time time limit for commands */
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required uint32 time_limit = 11 [default = 600];
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/* Should nsjail go into background? */
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required bool daemon = 12 [default = false];
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/* File to save lofs to */
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optional string log_file = 13;
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/* Minimum log level displayed.
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See 'msg LogLevel' description for more */
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optional LogLevel log_level = 14;
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/* Should the current environment variables be kept
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when executing the binary */
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required bool keep_env = 15 [default = false];
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/* Should nsjail close FD=0,1,2 before executing the process */
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required bool silent = 16 [default = false];
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/* Should the child process have control over terminal?
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Can be useful to allow /bin/sh to provide
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job control / signals */
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required bool skip_setsid = 17 [default = false];
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/* Which FDs should be passed to the newly executed process
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By default only FD=0,1,2 are passed */
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repeated int32 pass_fd = 18;
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/* Should pivot_root be used instead of chroot?
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Using pivot_root allows to have subnamespaces */
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required bool pivot_root_only = 19 [ default = false];
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/* Setting it to true will allow to have set-uid binaries
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inside the jail */
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required bool disable_no_new_privs = 20 [default = false];
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required uint64 rlimit_as = 21 [default = 512]; /* In MiB */
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required uint64 rlimit_core = 22 [default = 0]; /* In MiB */
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required uint64 rlimit_cpu = 23 [default = 600]; /* In seconds */
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required uint64 rlimit_fsize = 24 [default = 1]; /* In MiB */
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required uint64 rlimit_nofile = 25 [default = 32];
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optional uint64 rlimit_nproc = 26;
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optional uint64 rlimit_stack = 27; /* In MiB */
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/* See 'man personality' for more */
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required bool persona_addr_compat_layout = 28 [default = false];
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required bool persona_mmap_page_zero = 29 [default = false];
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required bool persona_read_implies_exec = 30 [default = false];
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required bool persona_addr_limit_3gb = 31 [default = false];
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required bool persona_addr_no_randomize = 32 [default = false];
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/* Which name-spaces should be used? */
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required bool clone_newnet = 33 [default = true];
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required bool clone_newuser = 34 [default = true];
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required bool clone_newns = 35 [default = true];
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required bool clone_newpid = 36 [default = true];
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required bool clone_newipc = 37 [default = true];
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required bool clone_newuts = 38 [default = true];
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/* It's only supported in newer kernels, hence disabled by default */
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required bool clone_newcgroup = 39 [default = false];
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/* Mappings for UIDs and GIDs. See the description for 'msg IdMap'
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for more */
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repeated IdMap uidmap = 40;
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repeated IdMap gidmap = 41;
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/* Mount points inside the jail. See the description for 'msg MountPt'
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for more */
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repeated MountPt mount = 42;
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/* Should /proc be mounted? One can also force this in the 'mount' */
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required bool mount_proc = 43 [default = true];
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/* Kafel seccomp policy file or string.
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Homepage of the project: https://github.com/google/kafel */
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optional string seccomp_policy_file = 44;
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optional string seccomp_string = 45;
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/* If > 0, maximum cumulative size of RAM used inside jail */
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required uint64 cgroup_mem_max = 46 [default = 0]; /* In MiB */
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/* Mount point for cgroups-memory */
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required string cgroup_mem_mount = 47 [default = "/sys/fs/cgroup/memory"];
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/* Writeable directory (for the nsjail user) under cgroup_mem_mount */
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required string cgroup_mem_parent = 48 [default = "NSJAIL"];
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/* If > 0, maximum number of PIDs (threads/processes) inside jail */
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required uint64 cgroup_pids_max = 49 [default = 0];
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/* Mount point for cgroups-memory */
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required string cgroup_pids_mount = 50 [default = "/sys/fs/cgroup/pids"];
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/* Writeable directory (for the nsjail user) under cgroup_pids_mount */
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required string cgroup_pids_parent = 51 [default = "NSJAIL"];
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/* Should the 'lo' interface be brought up inside jail? */
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required bool iface_no_lo = 52 [default = false];
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/* Parameters for the cloned MACVLAN interface inside jail */
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optional string macvlan_iface = 53; /* Interface to be cloned, eg 'eth0' */
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required string macvlan_vs_ip = 54 [default = "192.168.0.2"];
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required string macvlan_vs_nm = 55 [default = "255.255.255.0"];
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required string macvlan_vs_gw = 56 [default = "192.168.0.1"];
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/* Binary with arguments to be executed. If not specified here, it can be
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specified with the command-line as "-- /path/to/command arg1 arg2" */
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optional Exe exec_bin = 57;
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}
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