1 /* $NetBSD: h_comp.c,v 1.1 2014/01/14 17:51:39 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <err.h> 30 #include <fcntl.h> 31 #include <stdio.h> 32 #include <string.h> 33 #include <unistd.h> 34 35 #include <sys/ioctl.h> 36 #include <sys/time.h> 37 38 #include <crypto/cryptodev.h> 39 40 char text[100000] = {0}; 41 42 int 43 main(void) 44 { 45 int fd, res; 46 struct session_op cs; 47 struct crypt_op co1, co2; 48 unsigned char buf1[10000], buf2[100000]; 49 50 fd = open("/dev/crypto", O_RDWR, 0); 51 if (fd < 0) 52 err(1, "open"); 53 memset(&cs, 0, sizeof(cs)); 54 cs.comp_alg = CRYPTO_GZIP_COMP; 55 res = ioctl(fd, CIOCGSESSION, &cs); 56 if (res < 0) 57 err(1, "CIOCGSESSION"); 58 59 memset(&co1, 0, sizeof(co1)); 60 co1.ses = cs.ses; 61 co1.op = COP_COMP; 62 co1.len = sizeof(text); 63 co1.src = text; 64 co1.dst = buf1; 65 co1.dst_len = sizeof(buf1); 66 res = ioctl(fd, CIOCCRYPT, &co1); 67 if (res < 0) 68 err(1, "CIOCCRYPT1"); 69 fprintf(stderr, "len %d/%d\n", co1.len, co1.dst_len); 70 #if 0 71 buf1[co1.dst_len - 8]++; /* modify CRC */ 72 #endif 73 write(1, buf1, co1.dst_len); 74 memset(&co2, 0, sizeof(co2)); 75 co2.ses = cs.ses; 76 co2.op = COP_DECOMP; 77 co2.len = co1.dst_len; 78 co2.src = buf1; 79 co2.dst = buf2; 80 co2.dst_len = sizeof(buf2); 81 buf2[10] = 0x33; 82 res = ioctl(fd, CIOCCRYPT, &co2); 83 fprintf(stderr, "canary: %x\n", buf2[10]); 84 if (res < 0) 85 err(1, "CIOCCRYPT2"); 86 fprintf(stderr, "len %d/%d\n", co2.len, co2.dst_len); 87 if (memcmp(text, buf2, co2.dst_len)) 88 errx(1, "memcmp"); 89 return 0; 90 } 91