X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fa_gentm.c;h=8d43ee5f530958913a5b1a3c0f01801112cce285;hp=84440cce6c74ebf2200e2dd7f68083aff6f46294;hb=56f9953c846204cb3251ab27605e403c7444fd72;hpb=7e797a06c3eeac137eeb2e5743a7982bb5636841 diff --git a/crypto/asn1/a_gentm.c b/crypto/asn1/a_gentm.c index 84440cce6c..8d43ee5f53 100644 --- a/crypto/asn1/a_gentm.c +++ b/crypto/asn1/a_gentm.c @@ -1,206 +1,274 @@ -/* crypto/asn1/a_gentm.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * 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 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ -/* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */ +/* + * GENERALIZEDTIME implementation. Based on UTCTIME + */ #include #include -#include "cryptlib.h" +#include "internal/cryptlib.h" #include +#include "asn1_locl.h" + +int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d) +{ + static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 }; + static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 }; + char *a; + int n, i, l, o; + + if (d->type != V_ASN1_GENERALIZEDTIME) + return (0); + l = d->length; + a = (char *)d->data; + o = 0; + /* + * GENERALIZEDTIME is similar to UTCTIME except the year is represented + * as YYYY. This stuff treats everything as a two digit field so make + * first two fields 00 to 99 + */ + if (l < 13) + goto err; + for (i = 0; i < 7; i++) { + if ((i == 6) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) { + i++; + if (tm) + tm->tm_sec = 0; + break; + } + if ((a[o] < '0') || (a[o] > '9')) + goto err; + n = a[o] - '0'; + if (++o > l) + goto err; + + if ((a[o] < '0') || (a[o] > '9')) + goto err; + n = (n * 10) + a[o] - '0'; + if (++o > l) + goto err; + + if ((n < min[i]) || (n > max[i])) + goto err; + if (tm) { + switch (i) { + case 0: + tm->tm_year = n * 100 - 1900; + break; + case 1: + tm->tm_year += n; + break; + case 2: + tm->tm_mon = n - 1; + break; + case 3: + tm->tm_mday = n; + break; + case 4: + tm->tm_hour = n; + break; + case 5: + tm->tm_min = n; + break; + case 6: + tm->tm_sec = n; + break; + } + } + } + /* + * Optional fractional seconds: decimal point followed by one or more + * digits. + */ + if (a[o] == '.') { + if (++o > l) + goto err; + i = o; + while ((a[o] >= '0') && (a[o] <= '9') && (o <= l)) + o++; + /* Must have at least one digit after decimal point */ + if (i == o) + goto err; + } -int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp) - { - return(i2d_ASN1_bytes((ASN1_STRING *)a,pp, - V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL)); - } - - -ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a, - unsigned char **pp, long length) - { - ASN1_GENERALIZEDTIME *ret=NULL; - - ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length, - V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL); - if (ret == NULL) - { - ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR); - return(NULL); - } - if (!ASN1_GENERALIZEDTIME_check(ret)) - { - ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT); - goto err; - } - - return(ret); -err: - if ((ret != NULL) && ((a == NULL) || (*a != ret))) - ASN1_GENERALIZEDTIME_free(ret); - return(NULL); - } - -int ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME *d) - { - static int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0}; - static int max[9]={99, 99,12,31,23,59,59,12,59}; - char *a; - int n,i,l,o; - - if (d->type != V_ASN1_GENERALIZEDTIME) return(0); - l=d->length; - a=(char *)d->data; - o=0; - /* GENERALIZEDTIME is similar to UTCTIME except the year is - * represented as YYYY. This stuff treats everything as a two digit - * field so make first two fields 00 to 99 - */ - if (l < 13) goto err; - for (i=0; i<7; i++) - { - if ((i == 6) && ((a[o] == 'Z') || - (a[o] == '+') || (a[o] == '-'))) - { i++; break; } - if ((a[o] < '0') || (a[o] > '9')) goto err; - n= a[o]-'0'; - if (++o > l) goto err; - - if ((a[o] < '0') || (a[o] > '9')) goto err; - n=(n*10)+ a[o]-'0'; - if (++o > l) goto err; - - if ((n < min[i]) || (n > max[i])) goto err; - } - if (a[o] == 'Z') - o++; - else if ((a[o] == '+') || (a[o] == '-')) - { - o++; - if (o+4 > l) goto err; - for (i=7; i<9; i++) - { - if ((a[o] < '0') || (a[o] > '9')) goto err; - n= a[o]-'0'; - o++; - if ((a[o] < '0') || (a[o] > '9')) goto err; - n=(n*10)+ a[o]-'0'; - if ((n < min[i]) || (n > max[i])) goto err; - o++; - } - } - return(o == l); -err: - return(0); - } - -int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, char *str) - { - ASN1_GENERALIZEDTIME t; - - t.type=V_ASN1_GENERALIZEDTIME; - t.length=strlen(str); - t.data=(unsigned char *)str; - if (ASN1_GENERALIZEDTIME_check(&t)) - { - if (s != NULL) - { - ASN1_STRING_set((ASN1_STRING *)s, - (unsigned char *)str,t.length); - } - return(1); - } - else - return(0); - } + if (a[o] == 'Z') + o++; + else if ((a[o] == '+') || (a[o] == '-')) { + int offsign = a[o] == '-' ? -1 : 1, offset = 0; + o++; + if (o + 4 > l) + goto err; + for (i = 7; i < 9; i++) { + if ((a[o] < '0') || (a[o] > '9')) + goto err; + n = a[o] - '0'; + o++; + if ((a[o] < '0') || (a[o] > '9')) + goto err; + n = (n * 10) + a[o] - '0'; + if ((n < min[i]) || (n > max[i])) + goto err; + if (tm) { + if (i == 7) + offset = n * 3600; + else if (i == 8) + offset += n * 60; + } + o++; + } + if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign)) + return 0; + } else if (a[o]) { + /* Missing time zone information. */ + goto err; + } + return (o == l); + err: + return (0); +} + +int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d) +{ + return asn1_generalizedtime_to_tm(NULL, d); +} + +int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str) +{ + ASN1_GENERALIZEDTIME t; + + t.type = V_ASN1_GENERALIZEDTIME; + t.length = strlen(str); + t.data = (unsigned char *)str; + if (ASN1_GENERALIZEDTIME_check(&t)) { + if (s != NULL) { + if (!ASN1_STRING_set((ASN1_STRING *)s, + (unsigned char *)str, t.length)) + return 0; + s->type = V_ASN1_GENERALIZEDTIME; + } + return (1); + } else + return (0); +} ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s, - time_t t) - { - char *p; - struct tm *ts; -#if defined(THREADS) && !defined(WIN32) - struct tm data; -#endif + time_t t) +{ + return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0); +} - if (s == NULL) - s=ASN1_GENERALIZEDTIME_new(); - if (s == NULL) - return(NULL); +ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s, + time_t t, int offset_day, + long offset_sec) +{ + char *p; + struct tm *ts; + struct tm data; + size_t len = 20; + ASN1_GENERALIZEDTIME *tmps = NULL; -#if defined(THREADS) && !defined(WIN32) - gmtime_r(&t,&data); /* should return &data, but doesn't on some systems, so we don't even look at the return value */ - ts=&data; -#else - ts=gmtime(&t); + if (s == NULL) + tmps = ASN1_GENERALIZEDTIME_new(); + else + tmps = s; + if (tmps == NULL) + return NULL; + + ts = OPENSSL_gmtime(&t, &data); + if (ts == NULL) + goto err; + + if (offset_day || offset_sec) { + if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec)) + goto err; + } + + p = (char *)tmps->data; + if ((p == NULL) || ((size_t)tmps->length < len)) { + p = OPENSSL_malloc(len); + if (p == NULL) { + ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ, ERR_R_MALLOC_FAILURE); + goto err; + } + OPENSSL_free(tmps->data); + tmps->data = (unsigned char *)p; + } + + BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ", ts->tm_year + 1900, + ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min, + ts->tm_sec); + tmps->length = strlen(p); + tmps->type = V_ASN1_GENERALIZEDTIME; +#ifdef CHARSET_EBCDIC_not + ebcdic2ascii(tmps->data, tmps->data, tmps->length); #endif - p=(char *)s->data; - if ((p == NULL) || (s->length < 16)) - { - p=Malloc(20); - if (p == NULL) return(NULL); - if (s->data != NULL) - Free(s->data); - s->data=(unsigned char *)p; - } - - sprintf(p,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year + 1900, - ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec); - s->length=strlen(p); - s->type=V_ASN1_GENERALIZEDTIME; - return(s); - } + return tmps; + err: + if (s == NULL) + ASN1_GENERALIZEDTIME_free(tmps); + return NULL; +} + +const char *_asn1_mon[12] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" +}; + +int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm) +{ + char *v; + int gmt = 0; + int i; + int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; + char *f = NULL; + int f_len = 0; + + i = tm->length; + v = (char *)tm->data; + + if (i < 12) + goto err; + if (v[i - 1] == 'Z') + gmt = 1; + for (i = 0; i < 12; i++) + if ((v[i] > '9') || (v[i] < '0')) + goto err; + y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 + + (v[2] - '0') * 10 + (v[3] - '0'); + M = (v[4] - '0') * 10 + (v[5] - '0'); + if ((M > 12) || (M < 1)) + goto err; + d = (v[6] - '0') * 10 + (v[7] - '0'); + h = (v[8] - '0') * 10 + (v[9] - '0'); + m = (v[10] - '0') * 10 + (v[11] - '0'); + if (tm->length >= 14 && + (v[12] >= '0') && (v[12] <= '9') && + (v[13] >= '0') && (v[13] <= '9')) { + s = (v[12] - '0') * 10 + (v[13] - '0'); + /* Check for fractions of seconds. */ + if (tm->length >= 15 && v[14] == '.') { + int l = tm->length; + f = &v[14]; /* The decimal point. */ + f_len = 1; + while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9') + ++f_len; + } + } + + if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s", + _asn1_mon[M - 1], d, h, m, s, f_len, f, y, + (gmt) ? " GMT" : "") <= 0) + return (0); + else + return (1); + err: + BIO_write(bp, "Bad time value", 14); + return (0); +}