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https://github.com/privatevoid-net/nix-super.git
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e062021314
* fix NIX_PATH overriding - test restricted evaluation - test precedence for setting the search path Co-authored-by: Robert Hensing <robert@roberthensing.nl> Co-authored-by: John Ericson <git@JohnEricson.me>
70 lines
4.1 KiB
Bash
Executable file
70 lines
4.1 KiB
Bash
Executable file
#!/usr/bin/env bash
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source common.sh
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clearStoreIfPossible
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nix-instantiate --restrict-eval --eval -E '1 + 2'
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(! nix-instantiate --eval --restrict-eval ./restricted.nix)
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(! nix-instantiate --eval --restrict-eval <(echo '1 + 2'))
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nix-instantiate --restrict-eval ./simple.nix -I src=.
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nix-instantiate --restrict-eval ./simple.nix -I src1=simple.nix -I src2=config.nix -I src3=./simple.builder.sh
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# no default NIX_PATH
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(unset NIX_PATH; ! nix-instantiate --restrict-eval --find-file .)
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(! nix-instantiate --restrict-eval --eval -E 'builtins.readFile ./simple.nix')
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nix-instantiate --restrict-eval --eval -E 'builtins.readFile ./simple.nix' -I src=../..
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(! nix-instantiate --restrict-eval --eval -E 'builtins.readDir ../../src/nix-channel')
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nix-instantiate --restrict-eval --eval -E 'builtins.readDir ../../src/nix-channel' -I src=../../src
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expectStderr 1 nix-instantiate --restrict-eval --eval -E 'let __nixPath = [ { prefix = "foo"; path = ./.; } ]; in builtins.readFile <foo/simple.nix>' | grepQuiet "forbidden in restricted mode"
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nix-instantiate --restrict-eval --eval -E 'let __nixPath = [ { prefix = "foo"; path = ./.; } ]; in builtins.readFile <foo/simple.nix>' -I src=.
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p=$(nix eval --raw --expr "builtins.fetchurl file://$(pwd)/restricted.sh" --impure --restrict-eval --allowed-uris "file://$(pwd)")
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cmp $p restricted.sh
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(! nix eval --raw --expr "builtins.fetchurl file://$(pwd)/restricted.sh" --impure --restrict-eval)
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(! nix eval --raw --expr "builtins.fetchurl file://$(pwd)/restricted.sh" --impure --restrict-eval --allowed-uris "file://$(pwd)/restricted.sh/")
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nix eval --raw --expr "builtins.fetchurl file://$(pwd)/restricted.sh" --impure --restrict-eval --allowed-uris "file://$(pwd)/restricted.sh"
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(! nix eval --raw --expr "builtins.fetchurl https://github.com/NixOS/patchelf/archive/master.tar.gz" --impure --restrict-eval)
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(! nix eval --raw --expr "builtins.fetchTarball https://github.com/NixOS/patchelf/archive/master.tar.gz" --impure --restrict-eval)
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(! nix eval --raw --expr "fetchGit git://github.com/NixOS/patchelf.git" --impure --restrict-eval)
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ln -sfn $(pwd)/restricted.nix $TEST_ROOT/restricted.nix
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[[ $(nix-instantiate --eval $TEST_ROOT/restricted.nix) == 3 ]]
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(! nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix)
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(! nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix -I $TEST_ROOT)
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(! nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix -I .)
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nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix -I $TEST_ROOT -I .
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[[ $(nix eval --raw --impure --restrict-eval -I . --expr 'builtins.readFile "${import ./simple.nix}/hello"') == 'Hello World!' ]]
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# Check that we can't follow a symlink outside of the allowed paths.
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mkdir -p $TEST_ROOT/tunnel.d $TEST_ROOT/foo2
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ln -sfn .. $TEST_ROOT/tunnel.d/tunnel
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echo foo > $TEST_ROOT/bar
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expectStderr 1 nix-instantiate --restrict-eval --eval -E "let __nixPath = [ { prefix = \"foo\"; path = $TEST_ROOT/tunnel.d; } ]; in builtins.readFile <foo/tunnel/bar>" -I $TEST_ROOT/tunnel.d | grepQuiet "forbidden in restricted mode"
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expectStderr 1 nix-instantiate --restrict-eval --eval -E "let __nixPath = [ { prefix = \"foo\"; path = $TEST_ROOT/tunnel.d; } ]; in builtins.readDir <foo/tunnel/foo2>" -I $TEST_ROOT/tunnel.d | grepQuiet "forbidden in restricted mode"
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# Reading the parents of allowed paths should show only the ancestors of the allowed paths.
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[[ $(nix-instantiate --restrict-eval --eval -E "let __nixPath = [ { prefix = \"foo\"; path = $TEST_ROOT/tunnel.d; } ]; in builtins.readDir <foo/tunnel>" -I $TEST_ROOT/tunnel.d) == '{ "tunnel.d" = "directory"; }' ]]
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# Check whether we can leak symlink information through directory traversal.
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traverseDir="$(pwd)/restricted-traverse-me"
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ln -sfn "$(pwd)/restricted-secret" "$(pwd)/restricted-innocent"
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mkdir -p "$traverseDir"
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goUp="..$(echo "$traverseDir" | sed -e 's,[^/]\+,..,g')"
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output="$(nix eval --raw --restrict-eval -I "$traverseDir" \
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--expr "builtins.readFile \"$traverseDir/$goUp$(pwd)/restricted-innocent\"" \
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2>&1 || :)"
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echo "$output" | grep "is forbidden"
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echo "$output" | grepInverse -F restricted-secret
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expectStderr 1 nix-instantiate --restrict-eval true ./dependencies.nix | grepQuiet "forbidden in restricted mode"
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