diff options
Diffstat (limited to 'src/journal/test-compress.c')
-rw-r--r-- | src/journal/test-compress.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/src/journal/test-compress.c b/src/journal/test-compress.c deleted file mode 100644 index 72cadf1771..0000000000 --- a/src/journal/test-compress.c +++ /dev/null @@ -1,311 +0,0 @@ -/*** - This file is part of systemd - - Copyright 2014 Ronny Chevalier - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#ifdef HAVE_LZ4 -#include <lz4.h> -#endif - -#include "alloc-util.h" -#include "compress.h" -#include "fd-util.h" -#include "fileio.h" -#include "macro.h" -#include "random-util.h" -#include "util.h" - -#ifdef HAVE_XZ -# define XZ_OK 0 -#else -# define XZ_OK -EPROTONOSUPPORT -#endif - -#ifdef HAVE_LZ4 -# define LZ4_OK 0 -#else -# define LZ4_OK -EPROTONOSUPPORT -#endif - -typedef int (compress_blob_t)(const void *src, uint64_t src_size, - void *dst, size_t dst_alloc_size, size_t *dst_size); -typedef int (decompress_blob_t)(const void *src, uint64_t src_size, - void **dst, size_t *dst_alloc_size, - size_t* dst_size, size_t dst_max); -typedef int (decompress_sw_t)(const void *src, uint64_t src_size, - void **buffer, size_t *buffer_size, - const void *prefix, size_t prefix_len, - uint8_t extra); - -typedef int (compress_stream_t)(int fdf, int fdt, uint64_t max_bytes); -typedef int (decompress_stream_t)(int fdf, int fdt, uint64_t max_size); - -static void test_compress_decompress(int compression, - compress_blob_t compress, - decompress_blob_t decompress, - const char *data, - size_t data_len, - bool may_fail) { - char compressed[512]; - size_t csize, usize = 0; - _cleanup_free_ char *decompressed = NULL; - int r; - - log_info("/* testing %s %s blob compression/decompression */", - object_compressed_to_string(compression), data); - - r = compress(data, data_len, compressed, sizeof(compressed), &csize); - if (r == -ENOBUFS) { - log_info_errno(r, "compression failed: %m"); - assert_se(may_fail); - } else { - assert_se(r == 0); - r = decompress(compressed, csize, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r == 0); - assert_se(decompressed); - assert_se(memcmp(decompressed, data, data_len) == 0); - } - - r = decompress("garbage", 7, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r < 0); - - /* make sure to have the minimal lz4 compressed size */ - r = decompress("00000000\1g", 9, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r < 0); - - r = decompress("\100000000g", 9, - (void **) &decompressed, &usize, &csize, 0); - assert_se(r < 0); - - memzero(decompressed, usize); -} - -static void test_decompress_startswith(int compression, - compress_blob_t compress, - decompress_sw_t decompress_sw, - const char *data, - size_t data_len, - bool may_fail) { - - char *compressed; - _cleanup_free_ char *compressed1 = NULL, *compressed2 = NULL, *decompressed = NULL; - size_t csize, usize = 0, len; - int r; - - log_info("/* testing decompress_startswith with %s on %.20s text*/", - object_compressed_to_string(compression), data); - -#define BUFSIZE_1 512 -#define BUFSIZE_2 20000 - - compressed = compressed1 = malloc(BUFSIZE_1); - assert_se(compressed1); - r = compress(data, data_len, compressed, BUFSIZE_1, &csize); - if (r == -ENOBUFS) { - log_info_errno(r, "compression failed: %m"); - assert_se(may_fail); - - compressed = compressed2 = malloc(BUFSIZE_2); - assert_se(compressed2); - r = compress(data, data_len, compressed, BUFSIZE_2, &csize); - assert(r == 0); - } - assert_se(r == 0); - - len = strlen(data); - - r = decompress_sw(compressed, csize, (void **) &decompressed, &usize, data, len, '\0'); - assert_se(r > 0); - r = decompress_sw(compressed, csize, (void **) &decompressed, &usize, data, len, 'w'); - assert_se(r == 0); - r = decompress_sw(compressed, csize, (void **) &decompressed, &usize, "barbarbar", 9, ' '); - assert_se(r == 0); - r = decompress_sw(compressed, csize, (void **) &decompressed, &usize, data, len - 1, data[len-1]); - assert_se(r > 0); - r = decompress_sw(compressed, csize, (void **) &decompressed, &usize, data, len - 1, 'w'); - assert_se(r == 0); - r = decompress_sw(compressed, csize, (void **) &decompressed, &usize, data, len, '\0'); - assert_se(r > 0); -} - -static void test_compress_stream(int compression, - const char* cat, - compress_stream_t compress, - decompress_stream_t decompress, - const char *srcfile) { - - _cleanup_close_ int src = -1, dst = -1, dst2 = -1; - char pattern[] = "/tmp/systemd-test.compressed.XXXXXX", - pattern2[] = "/tmp/systemd-test.compressed.XXXXXX"; - int r; - _cleanup_free_ char *cmd = NULL, *cmd2; - struct stat st = {}; - - log_debug("/* testing %s compression */", - object_compressed_to_string(compression)); - - log_debug("/* create source from %s */", srcfile); - - assert_se((src = open(srcfile, O_RDONLY|O_CLOEXEC)) >= 0); - - log_debug("/* test compression */"); - - assert_se((dst = mkostemp_safe(pattern)) >= 0); - - assert_se(compress(src, dst, -1) == 0); - - if (cat) { - assert_se(asprintf(&cmd, "%s %s | diff %s -", cat, pattern, srcfile) > 0); - assert_se(system(cmd) == 0); - } - - log_debug("/* test decompression */"); - - assert_se((dst2 = mkostemp_safe(pattern2)) >= 0); - - assert_se(stat(srcfile, &st) == 0); - - assert_se(lseek(dst, 0, SEEK_SET) == 0); - r = decompress(dst, dst2, st.st_size); - assert_se(r == 0); - - assert_se(asprintf(&cmd2, "diff %s %s", srcfile, pattern2) > 0); - assert_se(system(cmd2) == 0); - - log_debug("/* test faulty decompression */"); - - assert_se(lseek(dst, 1, SEEK_SET) == 1); - r = decompress(dst, dst2, st.st_size); - assert_se(r == -EBADMSG || r == 0); - - assert_se(lseek(dst, 0, SEEK_SET) == 0); - assert_se(lseek(dst2, 0, SEEK_SET) == 0); - r = decompress(dst, dst2, st.st_size - 1); - assert_se(r == -EFBIG); - - assert_se(unlink(pattern) == 0); - assert_se(unlink(pattern2) == 0); -} - -#ifdef HAVE_LZ4 -static void test_lz4_decompress_partial(void) { - char buf[20000]; - size_t buf_size = sizeof(buf), compressed; - int r; - _cleanup_free_ char *huge = NULL; - -#define HUGE_SIZE (4096*1024) - huge = malloc(HUGE_SIZE); - memset(huge, 'x', HUGE_SIZE); - memcpy(huge, "HUGE=", 5); - - r = LZ4_compress_limitedOutput(huge, buf, HUGE_SIZE, buf_size); - assert_se(r >= 0); - compressed = r; - log_info("Compressed %i → %zu", HUGE_SIZE, compressed); - - r = LZ4_decompress_safe(buf, huge, r, HUGE_SIZE); - assert_se(r >= 0); - log_info("Decompressed → %i", r); - - r = LZ4_decompress_safe_partial(buf, huge, - compressed, - 12, HUGE_SIZE); - assert_se(r >= 0); - log_info("Decompressed partial %i/%i → %i", 12, HUGE_SIZE, r); - - /* We expect this to fail, because that's how current lz4 works. If this - * call succeeds, then lz4 has been fixed, and we need to change our code. - */ - r = LZ4_decompress_safe_partial(buf, huge, - compressed, - 12, HUGE_SIZE-1); - assert_se(r < 0); - log_info("Decompressed partial %i/%i → %i", 12, HUGE_SIZE-1, r); -} -#endif - -int main(int argc, char *argv[]) { - const char text[] = - "text\0foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF" - "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF"; - - /* The file to test compression on can be specified as the first argument */ - const char *srcfile = argc > 1 ? argv[1] : argv[0]; - - char data[512] = "random\0"; - - char huge[4096*1024]; - memset(huge, 'x', sizeof(huge)); - memcpy(huge, "HUGE=", 5); - char_array_0(huge); - - log_set_max_level(LOG_DEBUG); - - random_bytes(data + 7, sizeof(data) - 7); - -#ifdef HAVE_XZ - test_compress_decompress(OBJECT_COMPRESSED_XZ, compress_blob_xz, decompress_blob_xz, - text, sizeof(text), false); - test_compress_decompress(OBJECT_COMPRESSED_XZ, compress_blob_xz, decompress_blob_xz, - data, sizeof(data), true); - - test_decompress_startswith(OBJECT_COMPRESSED_XZ, - compress_blob_xz, decompress_startswith_xz, - text, sizeof(text), false); - test_decompress_startswith(OBJECT_COMPRESSED_XZ, - compress_blob_xz, decompress_startswith_xz, - data, sizeof(data), true); - test_decompress_startswith(OBJECT_COMPRESSED_XZ, - compress_blob_xz, decompress_startswith_xz, - huge, sizeof(huge), true); - - test_compress_stream(OBJECT_COMPRESSED_XZ, "xzcat", - compress_stream_xz, decompress_stream_xz, srcfile); -#else - log_info("/* XZ test skipped */"); -#endif - -#ifdef HAVE_LZ4 - test_compress_decompress(OBJECT_COMPRESSED_LZ4, compress_blob_lz4, decompress_blob_lz4, - text, sizeof(text), false); - test_compress_decompress(OBJECT_COMPRESSED_LZ4, compress_blob_lz4, decompress_blob_lz4, - data, sizeof(data), true); - - test_decompress_startswith(OBJECT_COMPRESSED_LZ4, - compress_blob_lz4, decompress_startswith_lz4, - text, sizeof(text), false); - test_decompress_startswith(OBJECT_COMPRESSED_LZ4, - compress_blob_lz4, decompress_startswith_lz4, - data, sizeof(data), true); - test_decompress_startswith(OBJECT_COMPRESSED_LZ4, - compress_blob_lz4, decompress_startswith_lz4, - huge, sizeof(huge), true); - - test_compress_stream(OBJECT_COMPRESSED_LZ4, "lz4cat", - compress_stream_lz4, decompress_stream_lz4, srcfile); - - test_lz4_decompress_partial(); -#else - log_info("/* LZ4 test skipped */"); -#endif - - return 0; -} |