/* $NetBSD: h_comp.c,v 1.1 2014/01/14 17:51:39 pgoyette Exp $ */ /*- * Copyright (c) 2014 The NetBSD Foundation, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <err.h> #include <fcntl.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include <sys/ioctl.h> #include <sys/time.h> #include <crypto/cryptodev.h> char text[100000] = {0}; int main(void) { int fd, res; struct session_op cs; struct crypt_op co1, co2; unsigned char buf1[10000], buf2[100000]; fd = open("/dev/crypto", O_RDWR, 0); if (fd < 0) err(1, "open"); memset(&cs, 0, sizeof(cs)); cs.comp_alg = CRYPTO_GZIP_COMP; res = ioctl(fd, CIOCGSESSION, &cs); if (res < 0) err(1, "CIOCGSESSION"); memset(&co1, 0, sizeof(co1)); co1.ses = cs.ses; co1.op = COP_COMP; co1.len = sizeof(text); co1.src = text; co1.dst = buf1; co1.dst_len = sizeof(buf1); res = ioctl(fd, CIOCCRYPT, &co1); if (res < 0) err(1, "CIOCCRYPT1"); fprintf(stderr, "len %d/%d\n", co1.len, co1.dst_len); #if 0 buf1[co1.dst_len - 8]++; /* modify CRC */ #endif write(1, buf1, co1.dst_len); memset(&co2, 0, sizeof(co2)); co2.ses = cs.ses; co2.op = COP_DECOMP; co2.len = co1.dst_len; co2.src = buf1; co2.dst = buf2; co2.dst_len = sizeof(buf2); buf2[10] = 0x33; res = ioctl(fd, CIOCCRYPT, &co2); fprintf(stderr, "canary: %x\n", buf2[10]); if (res < 0) err(1, "CIOCCRYPT2"); fprintf(stderr, "len %d/%d\n", co2.len, co2.dst_len); if (memcmp(text, buf2, co2.dst_len)) errx(1, "memcmp"); return 0; }