1 /* $NetBSD: h_comp_zlib.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 <string.h> 32 #include <zlib.h> 33 34 #include <sys/ioctl.h> 35 #include <sys/time.h> 36 37 #include <crypto/cryptodev.h> 38 39 char text[10000] = {0}; 40 41 int 42 main(void) 43 { 44 int fd, res; 45 struct session_op cs; 46 struct crypt_op co1; 47 unsigned char buf1[10000], buf2[10000]; 48 z_stream z; 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_DEFLATE_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 co1.flags = COP_F_BATCH; 67 res = ioctl(fd, CIOCCRYPT, &co1); 68 if (res < 0) 69 err(1, "CIOCCRYPT"); 70 71 memset(&z, 0, sizeof(z)); 72 z.next_in = buf1; 73 z.avail_in = co1.dst_len; 74 z.zalloc = Z_NULL; 75 z.zfree = Z_NULL; 76 z.opaque = 0; 77 z.next_out = buf2; 78 z.avail_out = sizeof(buf2); 79 res = inflateInit2(&z, -15); 80 if (res != Z_OK) 81 errx(1, "inflateInit: %d", res); 82 do { 83 res = inflate(&z, Z_SYNC_FLUSH); 84 } while (res == Z_OK); 85 if (res != Z_STREAM_END) 86 errx(1, "inflate: %d", res); 87 if (z.total_out != sizeof(text)) 88 errx(1, "decomp len %lu", z.total_out); 89 if (memcmp(buf2, text, sizeof(text))) 90 errx(1, "decomp data mismatch"); 91 return 0; 92 } 93