Allow decoding MAC addresses in some FRUs
Some motherboards store their mac address in a zlib compressed chunk at
a known location in the FRU. Decode that section, and pull the mac
address into the appropriate field.
This requires some refactoring so that the indexing can now have the
indexes passed through the various parse functions.
To use this functionality requires the use of libxml and zlib, which are
added as new dependencies.
Change-Id: Icb5c2e46e2a08ca83b3559892169ee2b3f319b2e
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/test/test_gzip-utils.cpp b/test/test_gzip-utils.cpp
new file mode 100644
index 0000000..58f51f1
--- /dev/null
+++ b/test/test_gzip-utils.cpp
@@ -0,0 +1,102 @@
+#include "fru_device/gzip_utils.hpp"
+
+#include <algorithm>
+#include <array>
+#include <iterator>
+#include <ranges>
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+TEST(GzipUtils, EmptyCompressed)
+{
+ std::vector<uint8_t> compressed = {};
+ std::optional<std::string> uncompressed = gzipInflate(compressed);
+ EXPECT_EQ(uncompressed, std::nullopt);
+}
+
+TEST(GzipUtils, GoodCompressed)
+{
+ // Empty file created with
+ // touch foo && gzip -c foo | xxd -i
+ std::array<uint8_t, 24> emptyCompressed{
+ 0x1f, 0x8b, 0x08, 0x08, 0x16, 0x37, 0xdc, 0x68, 0x00, 0x03, 0x66, 0x6f,
+ 0x6f, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+ std::optional<std::string> uncompressed = gzipInflate(emptyCompressed);
+ ASSERT_NE(uncompressed, std::nullopt);
+ if (uncompressed)
+ {
+ EXPECT_EQ(uncompressed->size(), 0U);
+ }
+}
+
+TEST(GzipUtils, 100kcompressedZeros)
+{
+ // File created with
+ // dd if=/dev/zero of=10kfile bs=10k count=1 && gzip -c 10kfile | xxd -i
+ std::array<uint8_t, 53> emptyCompressed{
+ 0x1f, 0x8b, 0x08, 0x08, 0xcb, 0x37, 0xdc, 0x68, 0x00, 0x03, 0x31,
+ 0x30, 0x6b, 0x66, 0x69, 0x6c, 0x65, 0x00, 0xed, 0xc1, 0x01, 0x0d,
+ 0x00, 0x00, 0x00, 0xc2, 0xa0, 0xf7, 0x4f, 0x6d, 0x0e, 0x37, 0xa0,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x37,
+ 0x03, 0x9a, 0xde, 0x1d, 0x27, 0x00, 0x28, 0x00, 0x00};
+ std::optional<std::string> uncompressed = gzipInflate(emptyCompressed);
+ ASSERT_NE(uncompressed, std::nullopt);
+ if (uncompressed)
+ {
+ EXPECT_EQ(uncompressed->size(), 10240U);
+ EXPECT_TRUE(std::ranges::all_of(*uncompressed, [](uint8_t c) {
+ return c == 0U;
+ }));
+ }
+}
+
+using ::testing::ElementsAre;
+using ::testing::IsEmpty;
+
+TEST(GzipUtils, getNodeFromXml)
+{
+ constexpr std::string_view xml = R"(<?xml version="1.0" encoding="UTF-8"?>
+ <bookstore>
+ <book category="cooking">
+ <title lang="en">Everyday Italian</title>
+ <author>Giada De Laurentiis</author>
+ <year>2005</year>
+ <price>30.00</price>
+ </book>
+ </bookstore>
+ )";
+
+ EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/title"),
+ ElementsAre("Everyday Italian"));
+ EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/author"),
+ ElementsAre("Giada De Laurentiis"));
+ EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/year"),
+ ElementsAre("2005"));
+ EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/price"),
+ ElementsAre("30.00"));
+ EXPECT_THAT(getNodeFromXml(xml, "//book/title"),
+ ElementsAre("Everyday Italian"));
+ EXPECT_THAT(getNodeFromXml(xml, "//book/author"),
+ ElementsAre("Giada De Laurentiis"));
+ EXPECT_THAT(getNodeFromXml(xml, "//book/year"), ElementsAre("2005"));
+ EXPECT_THAT(getNodeFromXml(xml, "//book/price"), ElementsAre("30.00"));
+ EXPECT_THAT(getNodeFromXml(xml, "///title"),
+ ElementsAre("Everyday Italian"));
+ EXPECT_THAT(getNodeFromXml(xml, "///author"),
+ ElementsAre("Giada De Laurentiis"));
+ EXPECT_THAT(getNodeFromXml(xml, "///year"), ElementsAre("2005"));
+ EXPECT_THAT(getNodeFromXml(xml, "///price"), ElementsAre("30.00"));
+
+ EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/noexist"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "/bookstore/noexist/title"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "/noexist/book/title"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "//book/noexist"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "//noexist/title"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "///noexist"), IsEmpty());
+
+ // invalid xpath
+ EXPECT_THAT(getNodeFromXml(xml, "foo"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "foo/bar"), IsEmpty());
+ EXPECT_THAT(getNodeFromXml(xml, "?"), IsEmpty());
+}