diff options
Diffstat (limited to 't')
| -rw-r--r-- | t/lib-httpd/apache.conf | 3 | ||||
| -rwxr-xr-x | t/t0001-init.sh | 20 | ||||
| -rwxr-xr-x | t/t5313-pack-bounds-checks.sh | 179 | ||||
| -rwxr-xr-x | t/t5510-fetch.sh | 10 | ||||
| -rwxr-xr-x | t/t9700/test.pl | 8 |
5 files changed, 204 insertions, 16 deletions
diff --git a/t/lib-httpd/apache.conf b/t/lib-httpd/apache.conf index 7d15e6d44c..f667e7ce2f 100644 --- a/t/lib-httpd/apache.conf +++ b/t/lib-httpd/apache.conf @@ -64,6 +64,9 @@ LockFile accept.lock <IfModule !mod_mpm_prefork.c> LoadModule mpm_prefork_module modules/mod_mpm_prefork.so </IfModule> +<IfModule !mod_unixd.c> + LoadModule unixd_module modules/mod_unixd.so +</IfModule> </IfVersion> PassEnv GIT_VALGRIND diff --git a/t/t0001-init.sh b/t/t0001-init.sh index 295aa5949a..a5b9e7a4c7 100755 --- a/t/t0001-init.sh +++ b/t/t0001-init.sh @@ -88,19 +88,17 @@ test_expect_success 'plain nested in bare through aliased command' ' ' test_expect_success 'No extra GIT_* on alias scripts' ' - ( - env | sed -ne "/^GIT_/s/=.*//p" && - echo GIT_PREFIX && # setup.c - echo GIT_TEXTDOMAINDIR # wrapper-for-bin.sh - ) | sort | uniq >expected && - cat <<-\EOF >script && - #!/bin/sh - env | sed -ne "/^GIT_/s/=.*//p" | sort >actual - exit 0 + write_script script <<-\EOF && + env | + sed -n \ + -e "/^GIT_PREFIX=/d" \ + -e "/^GIT_TEXTDOMAINDIR=/d" \ + -e "/^GIT_/s/=.*//p" | + sort EOF - chmod 755 script && + ./script >expected && git config alias.script \!./script && - ( mkdir sub && cd sub && git script ) && + ( mkdir sub && cd sub && git script >../actual ) && test_cmp expected actual ' diff --git a/t/t5313-pack-bounds-checks.sh b/t/t5313-pack-bounds-checks.sh new file mode 100755 index 0000000000..a8a587abc3 --- /dev/null +++ b/t/t5313-pack-bounds-checks.sh @@ -0,0 +1,179 @@ +#!/bin/sh + +test_description='bounds-checking of access to mmapped on-disk file formats' +. ./test-lib.sh + +clear_base () { + test_when_finished 'restore_base' && + rm -f $base +} + +restore_base () { + cp base-backup/* .git/objects/pack/ +} + +do_pack () { + pack_objects=$1; shift + sha1=$( + for i in $pack_objects + do + echo $i + done | git pack-objects "$@" .git/objects/pack/pack + ) && + pack=.git/objects/pack/pack-$sha1.pack && + idx=.git/objects/pack/pack-$sha1.idx && + chmod +w $pack $idx && + test_when_finished 'rm -f "$pack" "$idx"' +} + +munge () { + printf "$3" | dd of="$1" bs=1 conv=notrunc seek=$2 +} + +# Offset in a v2 .idx to its initial and extended offset tables. For an index +# with "nr" objects, this is: +# +# magic(4) + version(4) + fan-out(4*256) + sha1s(20*nr) + crc(4*nr), +# +# for the initial, and another ofs(4*nr) past that for the extended. +# +ofs_table () { + echo $((4 + 4 + 4*256 + 20*$1 + 4*$1)) +} +extended_table () { + echo $(($(ofs_table "$1") + 4*$1)) +} + +test_expect_success 'set up base packfile and variables' ' + # the hash of this content starts with ff, which + # makes some later computations much simpler + echo 74 >file && + git add file && + git commit -m base && + git repack -ad && + base=$(echo .git/objects/pack/*) && + chmod +w $base && + mkdir base-backup && + cp $base base-backup/ && + object=$(git rev-parse HEAD:file) +' + +test_expect_success 'pack/index object count mismatch' ' + do_pack $object && + munge $pack 8 "\377\0\0\0" && + clear_base && + + # We enumerate the objects from the completely-fine + # .idx, but notice later that the .pack is bogus + # and fail to show any data. + echo "$object missing" >expect && + git cat-file --batch-all-objects --batch-check >actual && + test_cmp expect actual && + + # ...and here fail to load the object (without segfaulting), + # but fallback to a good copy if available. + test_must_fail git cat-file blob $object && + restore_base && + git cat-file blob $object >actual && + test_cmp file actual && + + # ...and make sure that index-pack --verify, which has its + # own reading routines, does not segfault. + test_must_fail git index-pack --verify $pack +' + +test_expect_success 'matched bogus object count' ' + do_pack $object && + munge $pack 8 "\377\0\0\0" && + munge $idx $((255 * 4)) "\377\0\0\0" && + clear_base && + + # Unlike above, we should notice early that the .idx is totally + # bogus, and not even enumerate its contents. + >expect && + git cat-file --batch-all-objects --batch-check >actual && + test_cmp expect actual && + + # But as before, we can do the same object-access checks. + test_must_fail git cat-file blob $object && + restore_base && + git cat-file blob $object >actual && + test_cmp file actual && + + test_must_fail git index-pack --verify $pack +' + +# Note that we cannot check the fallback case for these +# further .idx tests, as we notice the problem in functions +# whose interface doesn't allow an error return (like use_pack()), +# and thus we just die(). +# +# There's also no point in doing enumeration tests, as +# we are munging offsets here, which are about looking up +# specific objects. + +test_expect_success 'bogus object offset (v1)' ' + do_pack $object --index-version=1 && + munge $idx $((4 * 256)) "\377\0\0\0" && + clear_base && + test_must_fail git cat-file blob $object && + test_must_fail git index-pack --verify $pack +' + +test_expect_success 'bogus object offset (v2, no msb)' ' + do_pack $object --index-version=2 && + munge $idx $(ofs_table 1) "\0\377\0\0" && + clear_base && + test_must_fail git cat-file blob $object && + test_must_fail git index-pack --verify $pack +' + +test_expect_success 'bogus offset into v2 extended table' ' + do_pack $object --index-version=2 && + munge $idx $(ofs_table 1) "\377\0\0\0" && + clear_base && + test_must_fail git cat-file blob $object && + test_must_fail git index-pack --verify $pack +' + +test_expect_success 'bogus offset inside v2 extended table' ' + # We need two objects here, so we can plausibly require + # an extended table (if the first object were larger than 2^31). + do_pack "$object $(git rev-parse HEAD)" --index-version=2 && + + # We have to make extra room for the table, so we cannot + # just munge in place as usual. + { + dd if=$idx bs=1 count=$(($(ofs_table 2) + 4)) && + printf "\200\0\0\0" && + printf "\377\0\0\0\0\0\0\0" && + dd if=$idx bs=1 skip=$(extended_table 2) + } >tmp && + mv tmp "$idx" && + clear_base && + test_must_fail git cat-file blob $object && + test_must_fail git index-pack --verify $pack +' + +test_expect_success 'bogus OFS_DELTA in packfile' ' + # Generate a pack with a delta in it. + base=$(test-genrandom foo 3000 | git hash-object --stdin -w) && + delta=$(test-genrandom foo 2000 | git hash-object --stdin -w) && + do_pack "$base $delta" --delta-base-offset && + rm -f .git/objects/??/* && + + # Double check that we have the delta we expect. + echo $base >expect && + echo $delta | git cat-file --batch-check="%(deltabase)" >actual && + test_cmp expect actual && + + # Now corrupt it. We assume the varint size for the delta is small + # enough to fit in the first byte (which it should be, since it + # is a pure deletion from the base), and that original ofs_delta + # takes 2 bytes (which it should, as it should be ~3000). + ofs=$(git show-index <$idx | grep $delta | cut -d" " -f1) && + munge $pack $(($ofs + 1)) "\177\377" && + test_must_fail git cat-file blob $delta >/dev/null +' + +test_done diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh index 0c10c856a9..38321d19ef 100755 --- a/t/t5510-fetch.sh +++ b/t/t5510-fetch.sh @@ -679,10 +679,12 @@ test_expect_success 'fetching with auto-gc does not lock up' ' EOF git clone "file://$D" auto-gc && test_commit test2 && - cd auto-gc && - git config gc.autoPackLimit 1 && - GIT_ASK_YESNO="$D/askyesno" git fetch >fetch.out 2>&1 && - ! grep "Should I try again" fetch.out + ( + cd auto-gc && + git config gc.autoPackLimit 1 && + GIT_ASK_YESNO="$D/askyesno" git fetch >fetch.out 2>&1 && + ! grep "Should I try again" fetch.out + ) ' test_done diff --git a/t/t9700/test.pl b/t/t9700/test.pl index 7e8c40b97b..1b75c91965 100755 --- a/t/t9700/test.pl +++ b/t/t9700/test.pl @@ -17,6 +17,12 @@ BEGIN { use Cwd; use File::Basename; +sub adjust_dirsep { + my $path = shift; + $path =~ s{\\}{/}g; + return $path; +} + BEGIN { use_ok('Git') } # set up @@ -33,7 +39,7 @@ is($r->config_int("test.int"), 2048, "config_int: integer"); is($r->config_int("test.nonexistent"), undef, "config_int: nonexistent"); ok($r->config_bool("test.booltrue"), "config_bool: true"); ok(!$r->config_bool("test.boolfalse"), "config_bool: false"); -is($r->config_path("test.path") =~ s/\\/\//gr, $r->config("test.pathexpanded"), +is(adjust_dirsep($r->config_path("test.path")), $r->config("test.pathexpanded"), "config_path: ~/foo expansion"); is_deeply([$r->config_path("test.pathmulti")], ["foo", "bar"], "config_path: multiple values"); |