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cherry-pick lib.sandbox into master

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This commit is contained in:
Jude Taylor 2015-11-19 11:33:21 -08:00
parent c296f64f19
commit 7039b24cdc
2 changed files with 49 additions and 1 deletions
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3
lib/default.nix
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@ -17,10 +17,11 @@ let
systems = import ./systems.nix;
customisation = import ./customisation.nix;
licenses = import ./licenses.nix;
sandbox = import ./sandbox.nix;
in
{ inherit trivial lists strings stringsWithDeps attrsets sources options
modules types meta debug maintainers licenses platforms systems;
modules types meta debug maintainers licenses platforms systems sandbox;
}
# !!! don't include everything at top-level; perhaps only the most
# commonly used functions.

47
lib/sandbox.nix Normal file
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@ -0,0 +1,47 @@
with import ./strings.nix;
/* Helpers for creating lisp S-exprs for the Apple sandbox
lib.sandbox.allowFileRead [ "/usr/bin/file" ];
# => "(allow file-read* (literal \"/usr/bin/file\"))";
lib.sandbox.allowFileRead {
literal = [ "/usr/bin/file" ];
subpath = [ "/usr/lib/system" ];
}
# => "(allow file-read* (literal \"/usr/bin/file\") (subpath \"/usr/lib/system\"))"
*/
let
sexp = tokens: "(" + builtins.concatStringsSep " " tokens + ")";
generateFileList = files:
if builtins.isList files
then concatMapStringsSep " " (x: sexp [ "literal" ''"${x}"'' ]) files
else if builtins.isString files
then generateFileList [ files ]
else concatStringsSep " " (
(map (x: sexp [ "literal" ''"${x}"'' ]) (files.literal or [])) ++
(map (x: sexp [ "subpath" ''"${x}"'' ]) (files.subpath or []))
);
applyToFiles = f: act: files: f "${act} ${generateFileList files}";
genActions = actionName: let
action = feature: sexp [ actionName feature ];
self = {
"${actionName}" = action;
"${actionName}File" = applyToFiles action "file*";
"${actionName}FileRead" = applyToFiles action "file-read*";
"${actionName}FileReadMetadata" = applyToFiles action "file-read-metadata";
"${actionName}DirectoryList" = self."${actionName}FileReadMetadata";
"${actionName}FileWrite" = applyToFiles action "file-write*";
"${actionName}FileWriteMetadata" = applyToFiles action "file-write-metadata";
};
in self;
in
genActions "allow" // genActions "deny" // {
importProfile = derivation: ''
(import "${derivation}")
'';
}