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171 lines
6.5 KiB
C
171 lines
6.5 KiB
C
/*
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* (C) 2007-22 - ntop.org and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>
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*
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*/
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#include <assert.h> // for assert
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#include <inttypes.h> // for PRIx64
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#include <stdint.h> // for uint8_t
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#include <stdio.h> // for printf, fprintf, stderr, stdout, NULL
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#include <stdlib.h> // for exit
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#include <string.h> // for memcmp
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#include "hexdump.h" // for fhexdump
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#include "minilzo.h" // for lzo1x_1_compress, lzo1x_decompress, LZO1X_1_ME...
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#include "n2n.h" // for N2N_PKT_BUF_SIZE, TRACE_ERROR, traceEvent
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/* heap allocation for compression as per lzo example doc */
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#define HEAP_ALLOC(var,size) lzo_align_t __LZO_MMODEL var [ ((size) + (sizeof(lzo_align_t) - 1)) / sizeof(lzo_align_t) ]
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static HEAP_ALLOC(wrkmem, LZO1X_1_MEM_COMPRESS);
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uint8_t PKT_CONTENT[]={
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
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};
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static void init_compression_for_benchmark (void) {
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if(lzo_init() != LZO_E_OK) {
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traceEvent(TRACE_ERROR, "LZO compression init error");
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exit(1);
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}
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#ifdef N2N_HAVE_ZSTD
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// zstd does not require initialization. if it were required, this would be a good place
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#endif
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}
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static void deinit_compression_for_benchmark (void) {
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// lzo1x does not require de-initialization. if it were required, this would be a good place
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#ifdef N2N_HAVE_ZSTD
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// zstd does not require de-initialization. if it were required, this would be a good place
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#endif
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}
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void test_lzo1x () {
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char *test_name = "lzo1x";
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uint8_t compression_buffer[N2N_PKT_BUF_SIZE]; // size allows enough of a reserve required for compression
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lzo_uint compression_len = sizeof(compression_buffer);
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if(lzo1x_1_compress(PKT_CONTENT, sizeof(PKT_CONTENT), compression_buffer, &compression_len, wrkmem) != LZO_E_OK) {
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fprintf(stderr, "%s: compression error\n", test_name);
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exit(1);
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}
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assert(compression_len == 47);
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printf("%s: output size = 0x%" PRIx64 "\n", test_name, compression_len);
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fhexdump(0, compression_buffer, compression_len, stdout);
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uint8_t deflation_buffer[N2N_PKT_BUF_SIZE];
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lzo_uint deflated_len;
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lzo1x_decompress(compression_buffer, compression_len, deflation_buffer, &deflated_len, NULL);
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assert(deflated_len == sizeof(PKT_CONTENT));
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if(memcmp(PKT_CONTENT, deflation_buffer, deflated_len)!=0) {
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fprintf(stderr, "%s: round-trip buffer mismatch\n", test_name);
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exit(1);
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}
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fprintf(stderr, "%s: tested\n", test_name);
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printf("\n");
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}
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void test_zstd () {
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char *test_name = "zstd";
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#ifdef N2N_HAVE_ZSTD
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uint8_t compression_buffer[N2N_PKT_BUF_SIZE]; // size allows enough of a reserve required for compression
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lzo_uint compression_len = sizeof(compression_buffer);
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compression_len = N2N_PKT_BUF_SIZE;
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compression_len = ZSTD_compress(compression_buffer, compression_len, PKT_CONTENT, sizeof(PKT_CONTENT), ZSTD_COMPRESSION_LEVEL);
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if(ZSTD_isError(compression_len)) {
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fprintf(stderr, "%s: compression error\n", test_name);
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exit(1);
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}
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assert(compression_len == 33);
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printf("%s: output size = 0x%" PRIx64 "\n", test_name, compression_len);
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fhexdump(0, compression_buffer, compression_len, stdout);
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uint8_t deflation_buffer[N2N_PKT_BUF_SIZE];
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int64_t deflated_len = sizeof(deflation_buffer);
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deflated_len = (int32_t)ZSTD_decompress(deflation_buffer, deflated_len, compression_buffer, compression_len);
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if(ZSTD_isError(deflated_len)) {
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fprintf(stderr, "%s: decompression error '%s'\n",
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test_name, ZSTD_getErrorName(deflated_len));
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exit(1);
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}
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assert(deflated_len == sizeof(PKT_CONTENT));
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if(memcmp(PKT_CONTENT, deflation_buffer, deflated_len)!=0) {
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fprintf(stderr, "%s: round-trip buffer mismatch\n", test_name);
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exit(1);
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}
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fprintf(stderr, "%s: tested\n", test_name);
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#else
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// FIXME - output dummy data to the stdout for easy comparison
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printf("zstd: output size = 0x21\n");
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printf("000: 28 b5 2f fd 60 00 01 bd 00 00 80 00 01 02 03 04 |( / ` |\n");
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printf("010: 05 06 07 08 09 0a 0b 0c 0d 0e 0f 01 00 da 47 9d | G |\n");
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printf("020: 4b |K|\n");
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fprintf(stderr, "%s: not compiled - dummy data output\n", test_name);
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#endif
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printf("\n");
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}
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int main (int argc, char * argv[]) {
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/* Also for compression (init moved here for ciphers get run before in case of lzo init error) */
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init_compression_for_benchmark();
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printf("%s: input size = 0x%" PRIx64 "\n", "original", sizeof(PKT_CONTENT));
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fhexdump(0, PKT_CONTENT, sizeof(PKT_CONTENT), stdout);
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printf("\n");
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test_lzo1x();
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test_zstd();
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deinit_compression_for_benchmark();
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return 0;
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}
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