developer | d042eba | 2023-11-14 14:23:39 +0800 | [diff] [blame^] | 1 | --- a/libkcapi/Makefile.am |
| 2 | +++ b/libkcapi/Makefile.am |
| 3 | @@ -229,6 +229,16 @@ EXTRA_bin_kcapi_dgst_DEPENDENCIES = libt |
| 4 | |
| 5 | SCAN_FILES += $(bin_kcapi_dgst_SOURCES) |
| 6 | man_MANS += apps/kcapi-dgst.1 |
| 7 | + |
| 8 | +bin_PROGRAMS += bin/kcapi-mtk-dgst |
| 9 | + |
| 10 | +bin_kcapi_mtk_dgst_CPPFLAGS = $(COMMON_CPPFLAGS) -I$(top_srcdir)/lib/ |
| 11 | +bin_kcapi_mtk_dgst_LDFLAGS = $(COMMON_LDFLAGS) |
| 12 | +bin_kcapi_mtk_dgst_LDADD = libkcapi.la |
| 13 | +bin_kcapi_mtk_dgst_SOURCES = apps/kcapi-mtk-dgst.c apps/app-internal.c |
| 14 | +EXTRA_bin_kcapi_dgst_DEPENDENCIES = libtool |
| 15 | + |
| 16 | +SCAN_FILES += $(bin_kcapi_mtk_dgst_SOURCES) |
| 17 | endif |
| 18 | |
| 19 | if HAVE_CLANG |
| 20 | --- /dev/null |
| 21 | +++ b/libkcapi/apps/kcapi-mtk-dgst.c |
| 22 | @@ -0,0 +1,287 @@ |
| 23 | +// SPDX-License-Identifier: BSD-2-Clause |
| 24 | +/* |
| 25 | + * Copyright (C) 2023, MediaTek Inc. All rights reserved. |
| 26 | + */ |
| 27 | + |
| 28 | +#define _GNU_SOURCE |
| 29 | +#include <unistd.h> |
| 30 | +#include <sys/syscall.h> |
| 31 | +#include <errno.h> |
| 32 | +#include <limits.h> |
| 33 | +#include <stdint.h> |
| 34 | +#include <sys/types.h> |
| 35 | +#include <sys/stat.h> |
| 36 | +#include <fcntl.h> |
| 37 | +#include <stdio.h> |
| 38 | +#include <stdlib.h> |
| 39 | +#include <string.h> |
| 40 | +#include <getopt.h> |
| 41 | + |
| 42 | +#include <kcapi.h> |
| 43 | + |
| 44 | +#include "app-internal.h" |
| 45 | + |
| 46 | +#define TYPE_SHA 0 |
| 47 | +#define TYPE_HMAC 1 |
| 48 | + |
| 49 | +static char *name = NULL; |
| 50 | +static unsigned char* key = NULL; |
| 51 | +static unsigned char* message = NULL; |
| 52 | +static uint32_t key_len = 0; |
| 53 | +static uint32_t message_len = 0; |
| 54 | +int type = -1, type_index = -1; |
| 55 | +int empty = 0; |
| 56 | +struct sha { |
| 57 | + char *name; |
| 58 | + ssize_t (*fun)(const uint8_t*, size_t, |
| 59 | + uint8_t*, size_t); |
| 60 | +}; |
| 61 | + |
| 62 | +struct hmac { |
| 63 | + char *name; |
| 64 | + ssize_t (*fun)(const uint8_t*, uint32_t, |
| 65 | + const uint8_t*, size_t, |
| 66 | + uint8_t*, size_t); |
| 67 | +}; |
| 68 | + |
| 69 | +struct sha msg_digest[5] = { |
| 70 | + { |
| 71 | + .name = "sha1", |
| 72 | + .fun = kcapi_md_sha1, |
| 73 | + }, |
| 74 | + { |
| 75 | + .name = "sha224", |
| 76 | + .fun = kcapi_md_sha224, |
| 77 | + }, |
| 78 | + { |
| 79 | + .name = "sha256", |
| 80 | + .fun = kcapi_md_sha256, |
| 81 | + }, |
| 82 | + { |
| 83 | + .name = "sha384", |
| 84 | + .fun = kcapi_md_sha384, |
| 85 | + }, |
| 86 | + { |
| 87 | + .name = "sha512", |
| 88 | + .fun = kcapi_md_sha512, |
| 89 | + }, |
| 90 | +}; |
| 91 | + |
| 92 | +struct hmac key_msg_digest[5] = { |
| 93 | + { |
| 94 | + .name = "hmac-sha1", |
| 95 | + .fun = kcapi_md_hmac_sha1, |
| 96 | + }, |
| 97 | + { |
| 98 | + .name = "hmac-sha224", |
| 99 | + .fun = kcapi_md_hmac_sha224, |
| 100 | + }, |
| 101 | + { |
| 102 | + .name = "hmac-sha256", |
| 103 | + .fun = kcapi_md_hmac_sha256, |
| 104 | + }, |
| 105 | + { |
| 106 | + .name = "hmac-sha384", |
| 107 | + .fun = kcapi_md_hmac_sha384, |
| 108 | + }, |
| 109 | + { |
| 110 | + .name = "hmac-sha512", |
| 111 | + .fun = kcapi_md_hmac_sha512, |
| 112 | + }, |
| 113 | +}; |
| 114 | + |
| 115 | +static unsigned char* hextobin(char* hexstr, uint32_t *ret_len) { |
| 116 | + size_t len = strlen(hexstr); |
| 117 | + size_t i = 0; |
| 118 | + char *pos = hexstr; |
| 119 | + unsigned char *ret = (unsigned char*) malloc((len + 1) / 2); |
| 120 | + |
| 121 | + for (i = 0; i < (len + 1) / 2; i++) { |
| 122 | + if(i == 0 && (len % 2) == 1) { |
| 123 | + sscanf(pos, "%1hhx", &ret[i]); |
| 124 | + pos += 1; |
| 125 | + } else { |
| 126 | + sscanf(pos, "%2hhx", &ret[i]); |
| 127 | + pos += 2; |
| 128 | + } |
| 129 | + } |
| 130 | + *ret_len = (len + 1) / 2; |
| 131 | + |
| 132 | + return ret; |
| 133 | +} |
| 134 | + |
| 135 | +static void uninit() { |
| 136 | + memset(key, 0, key_len); |
| 137 | + memset(message, 0, message_len); |
| 138 | + if(key) |
| 139 | + free(key); |
| 140 | + if(message) |
| 141 | + free(message); |
| 142 | +} |
| 143 | + |
| 144 | +static void usage(void) |
| 145 | +{ |
| 146 | + fprintf(stderr, "\nKernel Crypto API SHA & HMAC\n"); |
| 147 | + fprintf(stderr, "Usage:\n"); |
| 148 | + fprintf(stderr, "\t-k \tKey (hmac required option)\n"); |
| 149 | + fprintf(stderr, "\t-n \tDigest name such as sha1, sha224, sha256 sha512\n"); |
| 150 | + fprintf(stderr, "\t \thmac-sha1 hmac-sha224 hmac-sha256 hmac-sha384 hmac-sha512\n"); |
| 151 | + fprintf(stderr, "\t-m \tmessage(require option))\n"); |
| 152 | + fprintf(stderr, "\t-e \tempty message \n"); |
| 153 | + fprintf(stderr, "\t-l \toutput len(require option))\n"); |
| 154 | + fprintf(stderr, "\t\t\t\tnotation\n"); |
| 155 | + fprintf(stderr, "\t-h --help\t\tThis help information\n"); |
| 156 | + |
| 157 | + uninit(); |
| 158 | + exit(1); |
| 159 | +} |
| 160 | + |
| 161 | +static int check_type(char* name) { |
| 162 | + int i = 0; |
| 163 | + |
| 164 | + for(i = 0; i < 5; i++) { |
| 165 | + if(!strncmp(name, msg_digest[i].name, strlen(name))) { |
| 166 | + type_index = i; |
| 167 | + return TYPE_SHA; |
| 168 | + } |
| 169 | + } |
| 170 | + |
| 171 | + for(i = 0; i < 5; i++) { |
| 172 | + if(!strncmp(name, key_msg_digest[i].name, strlen(name))) { |
| 173 | + type_index = i; |
| 174 | + return TYPE_HMAC; |
| 175 | + } |
| 176 | + } |
| 177 | + |
| 178 | + return TYPE_HMAC + 1; |
| 179 | +} |
| 180 | + |
| 181 | +static int parse_opts(int argc, char *argv[], size_t *outlen) |
| 182 | +{ |
| 183 | + int c = 0; |
| 184 | + size_t len = 0; |
| 185 | + |
| 186 | + while (1) { |
| 187 | + int opt_index = 0; |
| 188 | + static struct option opts[] = { |
| 189 | + {"key", required_argument, 0, 'k'}, |
| 190 | + {"name", required_argument, 0, 'n'}, |
| 191 | + {"message", required_argument, 0, 'm'}, |
| 192 | + {"len", required_argument, 0, 'l'}, |
| 193 | + {"help", required_argument, 0, 'h'}, |
| 194 | + {"empty", required_argument, 0, 'e'}, |
| 195 | + {0, 0, 0, 0} |
| 196 | + }; |
| 197 | + c = getopt_long(argc, argv, "k:n:m:l:he", opts, &opt_index); |
| 198 | + if (-1 == c) |
| 199 | + break; |
| 200 | + switch (c) { |
| 201 | + case 0: |
| 202 | + switch (opt_index) { |
| 203 | + case 0: |
| 204 | + key = hextobin(optarg, &key_len); |
| 205 | + break; |
| 206 | + case 1: |
| 207 | + name = optarg; |
| 208 | + type = check_type(name); |
| 209 | + if(type > TYPE_HMAC){ |
| 210 | + usage(); |
| 211 | + return -EINVAL; |
| 212 | + } |
| 213 | + |
| 214 | + break; |
| 215 | + case 2: |
| 216 | + message = hextobin(optarg, &message_len); |
| 217 | + break; |
| 218 | + case 3: |
| 219 | + len = strtoul(optarg, NULL, 10); |
| 220 | + if (len == ULONG_MAX) { |
| 221 | + usage(); |
| 222 | + return -EINVAL; |
| 223 | + } |
| 224 | + break; |
| 225 | + default: |
| 226 | + usage(); |
| 227 | + } |
| 228 | + break; |
| 229 | + case 'k': |
| 230 | + key = hextobin(optarg, &key_len); |
| 231 | + break; |
| 232 | + case 'n': |
| 233 | + name = optarg; |
| 234 | + type = check_type(name); |
| 235 | + if(type > TYPE_HMAC){ |
| 236 | + usage(); |
| 237 | + return -EINVAL; |
| 238 | + } |
| 239 | + break; |
| 240 | + case 'm': |
| 241 | + message = hextobin(optarg, &message_len); |
| 242 | + break; |
| 243 | + case 'l': |
| 244 | + len = strtoul(optarg, NULL, 10); |
| 245 | + if (len == ULONG_MAX) { |
| 246 | + usage(); |
| 247 | + return -EINVAL; |
| 248 | + } |
| 249 | + break; |
| 250 | + case 'e': |
| 251 | + empty = 1; |
| 252 | + break; |
| 253 | + default: |
| 254 | + usage(); |
| 255 | + } |
| 256 | + } |
| 257 | + |
| 258 | + if(type == TYPE_HMAC) |
| 259 | + if(!key) |
| 260 | + usage(); |
| 261 | + if (!name || !message || !len) |
| 262 | + usage(); |
| 263 | + |
| 264 | + *outlen = (size_t)len; |
| 265 | + return 0; |
| 266 | +} |
| 267 | + |
| 268 | +static void print(unsigned char *out, int outlen) { |
| 269 | + int i = 0; |
| 270 | + |
| 271 | + for(i = 0; i < outlen; i++) |
| 272 | + printf("%02x", out[i]); |
| 273 | + printf("\n"); |
| 274 | +} |
| 275 | + |
| 276 | +int main(int argc, char *argv[]) |
| 277 | +{ |
| 278 | + size_t outlen = 0; |
| 279 | + ssize_t ret = 0; |
| 280 | + unsigned char *out = NULL; |
| 281 | + |
| 282 | + ret = parse_opts(argc, argv, &outlen); |
| 283 | + if (ret) |
| 284 | + return (int)ret; |
| 285 | + |
| 286 | + out = (unsigned char*)malloc(outlen); |
| 287 | + if (type == TYPE_SHA) { |
| 288 | + if (empty) |
| 289 | + ret = msg_digest[type_index].fun(message, 0, out, outlen); |
| 290 | + else |
| 291 | + ret = msg_digest[type_index].fun(message, message_len, out, outlen); |
| 292 | + } else if (type == TYPE_HMAC){ |
| 293 | + if(empty) |
| 294 | + ret = key_msg_digest[type_index].fun(key, key_len, message, 0, |
| 295 | + out, outlen); |
| 296 | + else |
| 297 | + ret = key_msg_digest[type_index].fun(key, key_len, message, message_len, |
| 298 | + out, outlen); |
| 299 | + } |
| 300 | + if(ret < 0) |
| 301 | + goto out; |
| 302 | + print(out, outlen); |
| 303 | + |
| 304 | +out: |
| 305 | + uninit(); |
| 306 | + if(out) |
| 307 | + free(out); |
| 308 | + return (int)ret; |
| 309 | +} |