diff options
Diffstat (limited to 'src/library/bcrypt/wrapper.c')
| -rw-r--r-- | src/library/bcrypt/wrapper.c | 545 |
1 files changed, 545 insertions, 0 deletions
diff --git a/src/library/bcrypt/wrapper.c b/src/library/bcrypt/wrapper.c new file mode 100644 index 0000000..344053b --- /dev/null +++ b/src/library/bcrypt/wrapper.c @@ -0,0 +1,545 @@ +/* + * Written by Solar Designer <solar at openwall.com> in 2000-2011. + * No copyright is claimed, and the software is hereby placed in the public + * domain. In case this attempt to disclaim copyright and place the software + * in the public domain is deemed null and void, then the software is + * Copyright (c) 2000-2011 Solar Designer and it is hereby released to the + * general public under the following terms: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted. + * + * There's ABSOLUTELY NO WARRANTY, express or implied. + * + * See crypt_blowfish.c for more information. + */ + +#include <stdlib.h> +#include <string.h> + +#include <errno.h> +#ifndef __set_errno +#define __set_errno(val) errno = (val) +#endif + +#ifdef TEST +#include <stdio.h> +#include <unistd.h> +#include <signal.h> +#include <time.h> +#include <sys/time.h> +#include <sys/times.h> +#ifdef TEST_THREADS +#include <pthread.h> +#endif +#endif + +#define CRYPT_OUTPUT_SIZE (7 + 22 + 31 + 1) +#define CRYPT_GENSALT_OUTPUT_SIZE (7 + 22 + 1) + +#if defined(__GLIBC__) && defined(_LIBC) +#define __SKIP_GNU +#endif +#include "ow-crypt.h" + +#include "crypt_blowfish.h" +#include "crypt_gensalt.h" + +#if defined(__GLIBC__) && defined(_LIBC) +/* crypt.h from glibc-crypt-2.1 will define struct crypt_data for us */ +#include "crypt.h" +extern char *__md5_crypt_r(const char *key, const char *salt, + char *buffer, int buflen); +/* crypt-entry.c needs to be patched to define __des_crypt_r rather than + * __crypt_r, and not define crypt_r and crypt at all */ +extern char *__des_crypt_r(const char *key, const char *salt, + struct crypt_data *data); +extern struct crypt_data _ufc_foobar; +#endif + +static int _crypt_data_alloc(void **data, int *size, int need) +{ + void *updated; + + if (*data && *size >= need) return 0; + + updated = realloc(*data, need); + + if (!updated) { +#ifndef __GLIBC__ + /* realloc(3) on glibc sets errno, so we don't need to bother */ + __set_errno(ENOMEM); +#endif + return -1; + } + +#if defined(__GLIBC__) && defined(_LIBC) + if (need >= sizeof(struct crypt_data)) + ((struct crypt_data *)updated)->initialized = 0; +#endif + + *data = updated; + *size = need; + + return 0; +} + +static char *_crypt_retval_magic(char *retval, const char *setting, + char *output, int size) +{ + if (retval) + return retval; + + if (_crypt_output_magic(setting, output, size)) + return NULL; /* shouldn't happen */ + + return output; +} + +#if defined(__GLIBC__) && defined(_LIBC) +/* + * Applications may re-use the same instance of struct crypt_data without + * resetting the initialized field in order to let crypt_r() skip some of + * its initialization code. Thus, it is important that our multiple hashing + * algorithms either don't conflict with each other in their use of the + * data area or reset the initialized field themselves whenever required. + * Currently, the hashing algorithms simply have no conflicts: the first + * field of struct crypt_data is the 128-byte large DES key schedule which + * __des_crypt_r() calculates each time it is called while the two other + * hashing algorithms use less than 128 bytes of the data area. + */ + +char *__crypt_rn(__const char *key, __const char *setting, + void *data, int size) +{ + if (setting[0] == '$' && setting[1] == '2') + return _crypt_blowfish_rn(key, setting, (char *)data, size); + if (setting[0] == '$' && setting[1] == '1') + return __md5_crypt_r(key, setting, (char *)data, size); + if (setting[0] == '$' || setting[0] == '_') { + __set_errno(EINVAL); + return NULL; + } + if (size >= sizeof(struct crypt_data)) + return __des_crypt_r(key, setting, (struct crypt_data *)data); + __set_errno(ERANGE); + return NULL; +} + +char *__crypt_ra(__const char *key, __const char *setting, + void **data, int *size) +{ + if (setting[0] == '$' && setting[1] == '2') { + if (_crypt_data_alloc(data, size, CRYPT_OUTPUT_SIZE)) + return NULL; + return _crypt_blowfish_rn(key, setting, (char *)*data, *size); + } + if (setting[0] == '$' && setting[1] == '1') { + if (_crypt_data_alloc(data, size, CRYPT_OUTPUT_SIZE)) + return NULL; + return __md5_crypt_r(key, setting, (char *)*data, *size); + } + if (setting[0] == '$' || setting[0] == '_') { + __set_errno(EINVAL); + return NULL; + } + if (_crypt_data_alloc(data, size, sizeof(struct crypt_data))) + return NULL; + return __des_crypt_r(key, setting, (struct crypt_data *)*data); +} + +char *__crypt_r(__const char *key, __const char *setting, + struct crypt_data *data) +{ + return _crypt_retval_magic( + __crypt_rn(key, setting, data, sizeof(*data)), + setting, (char *)data, sizeof(*data)); +} + +char *__crypt(__const char *key, __const char *setting) +{ + return _crypt_retval_magic( + __crypt_rn(key, setting, &_ufc_foobar, sizeof(_ufc_foobar)), + setting, (char *)&_ufc_foobar, sizeof(_ufc_foobar)); +} +#else +char *crypt_rn(const char *key, const char *setting, void *data, int size) +{ + return _crypt_blowfish_rn(key, setting, (char *)data, size); +} + +char *crypt_ra(const char *key, const char *setting, + void **data, int *size) +{ + if (_crypt_data_alloc(data, size, CRYPT_OUTPUT_SIZE)) + return NULL; + return _crypt_blowfish_rn(key, setting, (char *)*data, *size); +} + +char *crypt_r(const char *key, const char *setting, void *data) +{ + return _crypt_retval_magic( + crypt_rn(key, setting, data, CRYPT_OUTPUT_SIZE), + setting, (char *)data, CRYPT_OUTPUT_SIZE); +} + +char *crypt(const char *key, const char *setting) +{ + static char output[CRYPT_OUTPUT_SIZE]; + + return _crypt_retval_magic( + crypt_rn(key, setting, output, sizeof(output)), + setting, output, sizeof(output)); +} + +#define __crypt_gensalt_rn crypt_gensalt_rn +#define __crypt_gensalt_ra crypt_gensalt_ra +#define __crypt_gensalt crypt_gensalt +#endif + +char *__crypt_gensalt_rn(const char *prefix, unsigned long count, + const char *input, int size, char *output, int output_size) +{ + char *(*use)(const char *_prefix, unsigned long _count, + const char *_input, int _size, + char *_output, int _output_size); + + /* This may be supported on some platforms in the future */ + if (!input) { + __set_errno(EINVAL); + return NULL; + } + + if (!strncmp(prefix, "$2a$", 4) || !strncmp(prefix, "$2y$", 4)) + use = _crypt_gensalt_blowfish_rn; + else + if (!strncmp(prefix, "$1$", 3)) + use = _crypt_gensalt_md5_rn; + else + if (prefix[0] == '_') + use = _crypt_gensalt_extended_rn; + else + if (!prefix[0] || + (prefix[0] && prefix[1] && + memchr(_crypt_itoa64, prefix[0], 64) && + memchr(_crypt_itoa64, prefix[1], 64))) + use = _crypt_gensalt_traditional_rn; + else { + __set_errno(EINVAL); + return NULL; + } + + return use(prefix, count, input, size, output, output_size); +} + +char *__crypt_gensalt_ra(const char *prefix, unsigned long count, + const char *input, int size) +{ + char output[CRYPT_GENSALT_OUTPUT_SIZE]; + char *retval; + + retval = __crypt_gensalt_rn(prefix, count, + input, size, output, sizeof(output)); + + if (retval) { + retval = strdup(retval); +#ifndef __GLIBC__ + /* strdup(3) on glibc sets errno, so we don't need to bother */ + if (!retval) + __set_errno(ENOMEM); +#endif + } + + return retval; +} + +char *__crypt_gensalt(const char *prefix, unsigned long count, + const char *input, int size) +{ + static char output[CRYPT_GENSALT_OUTPUT_SIZE]; + + return __crypt_gensalt_rn(prefix, count, + input, size, output, sizeof(output)); +} + +#if defined(__GLIBC__) && defined(_LIBC) +weak_alias(__crypt_rn, crypt_rn) +weak_alias(__crypt_ra, crypt_ra) +weak_alias(__crypt_r, crypt_r) +weak_alias(__crypt, crypt) +weak_alias(__crypt_gensalt_rn, crypt_gensalt_rn) +weak_alias(__crypt_gensalt_ra, crypt_gensalt_ra) +weak_alias(__crypt_gensalt, crypt_gensalt) +weak_alias(crypt, fcrypt) +#endif + +#ifdef TEST +static const char *tests[][3] = { + {"$2a$05$CCCCCCCCCCCCCCCCCCCCC.E5YPO9kmyuRGyh0XouQYb4YMJKvyOeW", + "U*U"}, + {"$2a$05$CCCCCCCCCCCCCCCCCCCCC.VGOzA784oUp/Z0DY336zx7pLYAy0lwK", + "U*U*"}, + {"$2a$05$XXXXXXXXXXXXXXXXXXXXXOAcXxm9kjPGEMsLznoKqmqw7tc8WCx4a", + "U*U*U"}, + {"$2a$05$abcdefghijklmnopqrstuu5s2v8.iXieOjg/.AySBTTZIIVFJeBui", + "0123456789abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" + "chars after 72 are ignored"}, + {"$2x$05$/OK.fbVrR/bpIqNJ5ianF.CE5elHaaO4EbggVDjb8P19RukzXSM3e", + "\xa3"}, + {"$2x$05$/OK.fbVrR/bpIqNJ5ianF.CE5elHaaO4EbggVDjb8P19RukzXSM3e", + "\xff\xff\xa3"}, + {"$2y$05$/OK.fbVrR/bpIqNJ5ianF.CE5elHaaO4EbggVDjb8P19RukzXSM3e", + "\xff\xff\xa3"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.nqd1wy.pTMdcvrRWxyiGL2eMz.2a85.", + "\xff\xff\xa3"}, + {"$2y$05$/OK.fbVrR/bpIqNJ5ianF.Sa7shbm4.OzKpvFnX1pQLmQW96oUlCq", + "\xa3"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.Sa7shbm4.OzKpvFnX1pQLmQW96oUlCq", + "\xa3"}, + {"$2x$05$/OK.fbVrR/bpIqNJ5ianF.o./n25XVfn6oAPaUvHe.Csk4zRfsYPi", + "1\xa3" "345"}, + {"$2x$05$/OK.fbVrR/bpIqNJ5ianF.o./n25XVfn6oAPaUvHe.Csk4zRfsYPi", + "\xff\xa3" "345"}, + {"$2x$05$/OK.fbVrR/bpIqNJ5ianF.o./n25XVfn6oAPaUvHe.Csk4zRfsYPi", + "\xff\xa3" "34" "\xff\xff\xff\xa3" "345"}, + {"$2y$05$/OK.fbVrR/bpIqNJ5ianF.o./n25XVfn6oAPaUvHe.Csk4zRfsYPi", + "\xff\xa3" "34" "\xff\xff\xff\xa3" "345"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.ZC1JEJ8Z4gPfpe1JOr/oyPXTWl9EFd.", + "\xff\xa3" "34" "\xff\xff\xff\xa3" "345"}, + {"$2y$05$/OK.fbVrR/bpIqNJ5ianF.nRht2l/HRhr6zmCp9vYUvvsqynflf9e", + "\xff\xa3" "345"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.nRht2l/HRhr6zmCp9vYUvvsqynflf9e", + "\xff\xa3" "345"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.6IflQkJytoRVc1yuaNtHfiuq.FRlSIS", + "\xa3" "ab"}, + {"$2x$05$/OK.fbVrR/bpIqNJ5ianF.6IflQkJytoRVc1yuaNtHfiuq.FRlSIS", + "\xa3" "ab"}, + {"$2y$05$/OK.fbVrR/bpIqNJ5ianF.6IflQkJytoRVc1yuaNtHfiuq.FRlSIS", + "\xa3" "ab"}, + {"$2x$05$6bNw2HLQYeqHYyBfLMsv/OiwqTymGIGzFsA4hOTWebfehXHNprcAS", + "\xd1\x91"}, + {"$2x$05$6bNw2HLQYeqHYyBfLMsv/O9LIGgn8OMzuDoHfof8AQimSGfcSWxnS", + "\xd0\xc1\xd2\xcf\xcc\xd8"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.swQOIzjOiJ9GHEPuhEkvqrUyvWhEMx6", + "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa" + "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa" + "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa" + "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa" + "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa" + "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa" + "chars after 72 are ignored as usual"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.R9xrDjiycxMbQE2bp.vgqlYpW5wx2yy", + "\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55" + "\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55" + "\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55" + "\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55" + "\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55" + "\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55\xaa\x55"}, + {"$2a$05$/OK.fbVrR/bpIqNJ5ianF.9tQZzcJfm3uj2NvJ/n5xkhpqLrMpWCe", + "\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff" + "\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff" + "\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff" + "\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff" + "\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff" + "\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff\x55\xaa\xff"}, + {"$2a$05$CCCCCCCCCCCCCCCCCCCCC.7uG0VCzI2bS7j6ymqJi9CdcdxiRTWNy", + ""}, + {"*0", "", "$2a$03$CCCCCCCCCCCCCCCCCCCCC."}, + {"*0", "", "$2a$32$CCCCCCCCCCCCCCCCCCCCC."}, + {"*0", "", "$2z$05$CCCCCCCCCCCCCCCCCCCCC."}, + {"*0", "", "$2`$05$CCCCCCCCCCCCCCCCCCCCC."}, + {"*0", "", "$2{$05$CCCCCCCCCCCCCCCCCCCCC."}, + {"*1", "", "*0"}, + {NULL} +}; + +#define which tests[0] + +static volatile sig_atomic_t running; + +static void handle_timer(int signum) +{ + (void) signum; + running = 0; +} + +static void *run(void *arg) +{ + unsigned long count = 0; + int i = 0; + void *data = NULL; + int size = 0x12345678; + + do { + const char *hash = tests[i][0]; + const char *key = tests[i][1]; + const char *setting = tests[i][2]; + + if (!tests[++i][0]) + i = 0; + + if (setting && strlen(hash) < 30) /* not for benchmark */ + continue; + + if (strcmp(crypt_ra(key, hash, &data, &size), hash)) { + printf("%d: FAILED (crypt_ra/%d/%lu)\n", + (int)((char *)arg - (char *)0), i, count); + free(data); + return NULL; + } + count++; + } while (running); + + free(data); + return count + (char *)0; +} + +int main(void) +{ + struct itimerval it; + struct tms buf; + clock_t clk_tck, start_real, start_virtual, end_real, end_virtual; + unsigned long count; + void *data; + int size; + char *setting1, *setting2; + int i; +#ifdef TEST_THREADS + pthread_t t[TEST_THREADS]; + void *t_retval; +#endif + + data = NULL; + size = 0x12345678; + + for (i = 0; tests[i][0]; i++) { + const char *hash = tests[i][0]; + const char *key = tests[i][1]; + const char *setting = tests[i][2]; + const char *p; + int ok = !setting || strlen(hash) >= 30; + int o_size; + char s_buf[30], o_buf[61]; + if (!setting) { + memcpy(s_buf, hash, sizeof(s_buf) - 1); + s_buf[sizeof(s_buf) - 1] = 0; + setting = s_buf; + } + + __set_errno(0); + p = crypt(key, setting); + if ((!ok && !errno) || strcmp(p, hash)) { + printf("FAILED (crypt/%d)\n", i); + return 1; + } + + if (ok && strcmp(crypt(key, hash), hash)) { + printf("FAILED (crypt/%d)\n", i); + return 1; + } + + for (o_size = -1; o_size <= (int)sizeof(o_buf); o_size++) { + int ok_n = ok && o_size == (int)sizeof(o_buf); + const char *x = "abc"; + strcpy(o_buf, x); + if (o_size >= 3) { + x = "*0"; + if (setting[0] == '*' && setting[1] == '0') + x = "*1"; + } + __set_errno(0); + p = crypt_rn(key, setting, o_buf, o_size); + if ((ok_n && (!p || strcmp(p, hash))) || + (!ok_n && (!errno || p || strcmp(o_buf, x)))) { + printf("FAILED (crypt_rn/%d)\n", i); + return 1; + } + } + + __set_errno(0); + p = crypt_ra(key, setting, &data, &size); + if ((ok && (!p || strcmp(p, hash))) || + (!ok && (!errno || p || strcmp((char *)data, hash)))) { + printf("FAILED (crypt_ra/%d)\n", i); + return 1; + } + } + + setting1 = crypt_gensalt(which[0], 12, data, size); + if (!setting1 || strncmp(setting1, "$2a$12$", 7)) { + puts("FAILED (crypt_gensalt)\n"); + return 1; + } + + setting2 = crypt_gensalt_ra(setting1, 12, data, size); + if (strcmp(setting1, setting2)) { + puts("FAILED (crypt_gensalt_ra/1)\n"); + return 1; + } + + (*(char *)data)++; + setting1 = crypt_gensalt_ra(setting2, 12, data, size); + if (!strcmp(setting1, setting2)) { + puts("FAILED (crypt_gensalt_ra/2)\n"); + return 1; + } + + free(setting1); + free(setting2); + free(data); + +#if defined(_SC_CLK_TCK) || !defined(CLK_TCK) + clk_tck = sysconf(_SC_CLK_TCK); +#else + clk_tck = CLK_TCK; +#endif + + running = 1; + signal(SIGALRM, handle_timer); + + memset(&it, 0, sizeof(it)); + it.it_value.tv_sec = 5; + setitimer(ITIMER_REAL, &it, NULL); + + start_real = times(&buf); + start_virtual = buf.tms_utime + buf.tms_stime; + + count = (char *)run((char *)0) - (char *)0; + + end_real = times(&buf); + end_virtual = buf.tms_utime + buf.tms_stime; + if (end_virtual == start_virtual) end_virtual++; + + printf("%.1f c/s real, %.1f c/s virtual\n", + (float)count * clk_tck / (end_real - start_real), + (float)count * clk_tck / (end_virtual - start_virtual)); + +#ifdef TEST_THREADS + running = 1; + it.it_value.tv_sec = 60; + setitimer(ITIMER_REAL, &it, NULL); + start_real = times(&buf); + + for (i = 0; i < TEST_THREADS; i++) + if (pthread_create(&t[i], NULL, run, i + (char *)0)) { + perror("pthread_create"); + return 1; + } + + for (i = 0; i < TEST_THREADS; i++) { + if (pthread_join(t[i], &t_retval)) { + perror("pthread_join"); + continue; + } + if (!t_retval) continue; + count = (char *)t_retval - (char *)0; + end_real = times(&buf); + printf("%d: %.1f c/s real\n", i, + (float)count * clk_tck / (end_real - start_real)); + } +#endif + + return 0; +} +#endif |