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fix: support more than 65536 uids/gids/modes (see gh #173)

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This commit is contained in:
Marcus Holland-Moritz 2023-10-29 08:28:55 +01:00
parent b8d8246801
commit 928fdc257f
2 changed files with 44 additions and 3 deletions
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41
test/dwarfs.cpp
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@ -921,3 +921,44 @@ TEST(filesystem, uid_gid_32bit) {
EXPECT_EQ(65536, st32.uid);
EXPECT_EQ(4294967295, st32.gid);
}
TEST(filesystem, uid_gid_count) {
test::test_logger lgr;
auto input = std::make_shared<test::os_access_mock>();
input->add("", {1, 040755, 1, 0, 0, 10, 42, 0, 0, 0});
for (uint32_t i = 0; i < 100000; ++i) {
input->add(fmt::format("foo{:05d}.txt", i),
{2 + i, 0100644, 1, 50000 + i, 250000 + i, 10, 42, 0, 0, 0},
fmt::format("hello{:05d}", i));
}
auto fsimage = build_dwarfs(lgr, input, "null");
auto mm = std::make_shared<test::mmap_mock>(std::move(fsimage));
filesystem_v2 fs(lgr, mm);
auto iv00000 = fs.find("/foo00000.txt");
auto iv50000 = fs.find("/foo50000.txt");
auto iv99999 = fs.find("/foo99999.txt");
EXPECT_TRUE(iv00000);
EXPECT_TRUE(iv50000);
EXPECT_TRUE(iv99999);
file_stat st00000, st50000, st99999;
EXPECT_EQ(0, fs.getattr(*iv00000, &st00000));
EXPECT_EQ(0, fs.getattr(*iv50000, &st50000));
EXPECT_EQ(0, fs.getattr(*iv99999, &st99999));
EXPECT_EQ(50000, st00000.uid);
EXPECT_EQ(250000, st00000.gid);
EXPECT_EQ(100000, st50000.uid);
EXPECT_EQ(300000, st50000.gid);
EXPECT_EQ(149999, st99999.uid);
EXPECT_EQ(349999, st99999.gid);
}

6
thrift/metadata.thrift
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@ -77,13 +77,13 @@ struct directory {
*/
struct inode_data {
// index into `metadata.modes[]`
2: UInt16 mode_index
2: UInt32 mode_index
// index into `metadata.uids[]`
4: UInt16 owner_index
4: UInt32 owner_index
// index into `metadata.gids[]`
5: UInt16 group_index
5: UInt32 group_index
// atime relative to `metadata.timestamp_base`
6: UInt64 atime_offset