/*
* (C) 2007-21 - ntop.org and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see
*
*/
#include
#include
#include "n2n.h"
#include "hexdump.h"
/* heap allocation for compression as per lzo example doc */
#define HEAP_ALLOC(var,size) lzo_align_t __LZO_MMODEL var [ ((size) + (sizeof(lzo_align_t) - 1)) / sizeof(lzo_align_t) ]
static HEAP_ALLOC(wrkmem, LZO1X_1_MEM_COMPRESS);
uint8_t PKT_CONTENT[]={
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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
};
static void init_compression_for_benchmark (void) {
if(lzo_init() != LZO_E_OK) {
traceEvent(TRACE_ERROR, "LZO compression init error");
exit(1);
}
#ifdef N2N_HAVE_ZSTD
// zstd does not require initialization. if it were required, this would be a good place
#endif
}
static void deinit_compression_for_benchmark (void) {
// lzo1x does not require de-initialization. if it were required, this would be a good place
#ifdef N2N_HAVE_ZSTD
// zstd does not require de-initialization. if it were required, this would be a good place
#endif
}
void test_lzo1x () {
char *test_name = "lzo1x";
uint8_t compression_buffer[N2N_PKT_BUF_SIZE]; // size allows enough of a reserve required for compression
lzo_uint compression_len = sizeof(compression_buffer);
if(lzo1x_1_compress(PKT_CONTENT, sizeof(PKT_CONTENT), compression_buffer, &compression_len, wrkmem) != LZO_E_OK) {
fprintf(stderr, "%s: compression error\n", test_name);
exit(1);
}
assert(compression_len == 47);
printf("%s: output size = 0x%" PRIx64 "\n", test_name, compression_len);
fhexdump(0, compression_buffer, compression_len, stdout);
uint8_t deflation_buffer[N2N_PKT_BUF_SIZE];
lzo_uint deflated_len;
lzo1x_decompress(compression_buffer, compression_len, deflation_buffer, &deflated_len, NULL);
assert(deflated_len == sizeof(PKT_CONTENT));
if(memcmp(PKT_CONTENT, deflation_buffer, deflated_len)!=0) {
fprintf(stderr, "%s: round-trip buffer mismatch\n", test_name);
exit(1);
}
fprintf(stderr, "%s: tested\n", test_name);
printf("\n");
}
void test_zstd () {
char *test_name = "zstd";
#ifdef N2N_HAVE_ZSTD
uint8_t compression_buffer[N2N_PKT_BUF_SIZE]; // size allows enough of a reserve required for compression
lzo_uint compression_len = sizeof(compression_buffer);
compression_len = N2N_PKT_BUF_SIZE;
compression_len = ZSTD_compress(compression_buffer, compression_len, PKT_CONTENT, sizeof(PKT_CONTENT), ZSTD_COMPRESSION_LEVEL);
if(ZSTD_isError(compression_len)) {
fprintf(stderr, "%s: compression error\n", test_name);
exit(1);
}
assert(compression_len == 33);
printf("%s: output size = 0x%" PRIx64 "\n", test_name, compression_len);
fhexdump(0, compression_buffer, compression_len, stdout);
uint8_t deflation_buffer[N2N_PKT_BUF_SIZE];
int64_t deflated_len = sizeof(deflation_buffer);
deflated_len = (int32_t)ZSTD_decompress(deflation_buffer, deflated_len, compression_buffer, compression_len);
if(ZSTD_isError(deflated_len)) {
fprintf(stderr, "%s: decompression error '%s'\n",
test_name, ZSTD_getErrorName(deflated_len));
exit(1);
}
assert(deflated_len == sizeof(PKT_CONTENT));
if(memcmp(PKT_CONTENT, deflation_buffer, deflated_len)!=0) {
fprintf(stderr, "%s: round-trip buffer mismatch\n", test_name);
exit(1);
}
fprintf(stderr, "%s: tested\n", test_name);
#else
// FIXME - output dummy data to the stdout for easy comparison
printf("zstd: output size = 0x21\n");
printf("000: 28 b5 2f fd 60 00 01 bd 00 00 80 00 01 02 03 04 |( / ` |\n");
printf("010: 05 06 07 08 09 0a 0b 0c 0d 0e 0f 01 00 da 47 9d | G |\n");
printf("020: 4b |K|\n");
fprintf(stderr, "%s: not compiled - dummy data output\n", test_name);
#endif
printf("\n");
}
int main (int argc, char * argv[]) {
/* Also for compression (init moved here for ciphers get run before in case of lzo init error) */
init_compression_for_benchmark();
printf("%s: input size = 0x%" PRIx64 "\n", "original", sizeof(PKT_CONTENT));
fhexdump(0, PKT_CONTENT, sizeof(PKT_CONTENT), stdout);
printf("\n");
test_lzo1x();
test_zstd();
deinit_compression_for_benchmark();
return 0;
}