X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=apps%2Fasn1pars.c;h=342e12d9b256583fb29b9c71db591ccd8742f57f;hb=8dd5c603b60d8dd2907fea6c9cdefff20b787845;hp=64a2d850cbd29eee2088b554cd119d91cfb6a011;hpb=d012c1a17934d4f5aac0bc9853efcb3f831b5b23;p=oweals%2Fopenssl.git diff --git a/apps/asn1pars.c b/apps/asn1pars.c index 64a2d850cb..342e12d9b2 100644 --- a/apps/asn1pars.c +++ b/apps/asn1pars.c @@ -1,58 +1,62 @@ /* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. * - * Licensed under the OpenSSL license (the "License"). You may not use + * Licensed under the Apache License 2.0 (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 */ -/* - * A nice addition from Dr Stephen Henson to add the - * -strparse option which parses nested binary structures - */ - #include #include #include #include "apps.h" +#include "progs.h" #include #include #include #include +#include typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT, OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT, - OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM + OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM, + OPT_ITEM } OPTION_CHOICE; -OPTIONS asn1parse_options[] = { +const OPTIONS asn1parse_options[] = { + OPT_SECTION("General"), {"help", OPT_HELP, '-', "Display this summary"}, + {"oid", OPT_OID, '<', "file of extra oid definitions"}, + + OPT_SECTION("I/O"), {"inform", OPT_INFORM, 'F', "input format - one of DER PEM"}, {"in", OPT_IN, '<', "input file"}, {"out", OPT_OUT, '>', "output file (output format is always DER)"}, - {"i", OPT_INDENT, 0, "indents the output"}, {"noout", OPT_NOOUT, 0, "do not produce any output"}, {"offset", OPT_OFFSET, 'p', "offset into file"}, {"length", OPT_LENGTH, 'p', "length of section in file"}, - {"oid", OPT_OID, '<', "file of extra oid definitions"}, - {"dump", OPT_DUMP, 0, "unknown data in hex form"}, - {"dlimit", OPT_DLIMIT, 'p', - "dump the first arg bytes of unknown data in hex form"}, - {"strparse", OPT_STRPARSE, 's', + {"strparse", OPT_STRPARSE, 'p', "offset; a series of these can be used to 'dig'"}, - {OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"}, {"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"}, + {OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"}, {"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"}, - {OPT_MORE_STR, 0, 0, "(-inform will be ignored)"}, {"strictpem", OPT_STRICTPEM, 0, "do not attempt base64 decode outside PEM markers"}, + {"item", OPT_ITEM, 's', "item to parse and print"}, + {OPT_MORE_STR, 0, 0, "(-inform will be ignored)"}, + + OPT_SECTION("Formatting"), + {"i", OPT_INDENT, 0, "indents the output"}, + {"dump", OPT_DUMP, 0, "unknown data in hex form"}, + {"dlimit", OPT_DLIMIT, 'p', + "dump the first arg bytes of unknown data in hex form"}, {NULL} }; -static int do_generate(char *genstr, char *genconf, BUF_MEM *buf); +static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf); int asn1parse_main(int argc, char **argv) { @@ -71,6 +75,7 @@ int asn1parse_main(int argc, char **argv) unsigned char *tmpbuf; unsigned int length = 0; OPTION_CHOICE o; + const ASN1_ITEM *it = NULL; prog = opt_init(argc, argv, asn1parse_options); @@ -113,13 +118,13 @@ int asn1parse_main(int argc, char **argv) offset = strtol(opt_arg(), NULL, 0); break; case OPT_LENGTH: - length = atoi(opt_arg()); + length = strtol(opt_arg(), NULL, 0); break; case OPT_DUMP: dump = -1; break; case OPT_DLIMIT: - dump = atoi(opt_arg()); + dump = strtol(opt_arg(), NULL, 0); break; case OPT_STRPARSE: sk_OPENSSL_STRING_push(osk, opt_arg()); @@ -134,6 +139,22 @@ int asn1parse_main(int argc, char **argv) strictpem = 1; informat = FORMAT_PEM; break; + case OPT_ITEM: + it = ASN1_ITEM_lookup(opt_arg()); + if (it == NULL) { + size_t tmp; + + BIO_printf(bio_err, "Unknown item name %s\n", opt_arg()); + BIO_puts(bio_err, "Supported types:\n"); + for (tmp = 0;; tmp++) { + it = ASN1_ITEM_get(tmp); + if (it == NULL) + break; + BIO_printf(bio_err, " %s\n", it->sname); + } + goto end; + } + break; } } argc = opt_num_rest(); @@ -154,17 +175,17 @@ int asn1parse_main(int argc, char **argv) if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == NULL) goto end; + if ((buf = BUF_MEM_new()) == NULL) + goto end; if (strictpem) { - if (PEM_read_bio(in, &name, &header, &str, &num) != - 1) { + if (PEM_read_bio(in, &name, &header, &str, &num) != 1) { BIO_printf(bio_err, "Error reading PEM file\n"); ERR_print_errors(bio_err); goto end; } + buf->data = (char *)str; + buf->length = buf->max = num; } else { - - if ((buf = BUF_MEM_new()) == NULL) - goto end; if (!BUF_MEM_grow(buf, BUFSIZ * 8)) goto end; /* Pre-allocate :-) */ @@ -174,9 +195,7 @@ int asn1parse_main(int argc, char **argv) ERR_print_errors(bio_err); goto end; } - } - - else { + } else { if (informat == FORMAT_PEM) { BIO *tmp; @@ -191,7 +210,7 @@ int asn1parse_main(int argc, char **argv) num = 0; for (;;) { - if (!BUF_MEM_grow(buf, (int)num + BUFSIZ)) + if (!BUF_MEM_grow(buf, num + BUFSIZ)) goto end; i = BIO_read(in, &(buf->data[num]), BUFSIZ); if (i <= 0) @@ -211,9 +230,9 @@ int asn1parse_main(int argc, char **argv) for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) { ASN1_TYPE *atmp; int typ; - j = atoi(sk_OPENSSL_STRING_value(osk, i)); - if (j == 0) { - BIO_printf(bio_err, "'%s' is an invalid number\n", + j = strtol(sk_OPENSSL_STRING_value(osk, i), NULL, 0); + if (j <= 0 || j >= tmplen) { + BIO_printf(bio_err, "'%s' is out of range\n", sk_OPENSSL_STRING_value(osk, i)); continue; } @@ -244,27 +263,40 @@ int asn1parse_main(int argc, char **argv) num = tmplen; } - if (offset >= num) { - BIO_printf(bio_err, "Error: offset too large\n"); + if (offset < 0 || offset >= num) { + BIO_printf(bio_err, "Error: offset out of range\n"); goto end; } num -= offset; - if ((length == 0) || ((long)length > num)) + if (length == 0 || length > (unsigned int)num) length = (unsigned int)num; - if (derout) { + if (derout != NULL) { if (BIO_write(derout, str + offset, length) != (int)length) { BIO_printf(bio_err, "Error writing output\n"); ERR_print_errors(bio_err); goto end; } } - if (!noout && - !ASN1_parse_dump(bio_out, &(str[offset]), length, - indent, dump)) { - ERR_print_errors(bio_err); - goto end; + if (!noout) { + const unsigned char *p = str + offset; + + if (it != NULL) { + ASN1_VALUE *value = ASN1_item_d2i(NULL, &p, length, it); + if (value == NULL) { + BIO_printf(bio_err, "Error parsing item %s\n", it->sname); + ERR_print_errors(bio_err); + goto end; + } + ASN1_item_print(bio_out, value, 0, it, NULL); + ASN1_item_free(value, it); + } else { + if (!ASN1_parse_dump(bio_out, p, length, indent, dump)) { + ERR_print_errors(bio_err); + goto end; + } + } } ret = 0; end: @@ -276,26 +308,24 @@ int asn1parse_main(int argc, char **argv) BUF_MEM_free(buf); OPENSSL_free(name); OPENSSL_free(header); - if (strictpem) - OPENSSL_free(str); ASN1_TYPE_free(at); sk_OPENSSL_STRING_free(osk); - return (ret); + return ret; } -static int do_generate(char *genstr, char *genconf, BUF_MEM *buf) +static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf) { CONF *cnf = NULL; int len; unsigned char *p; ASN1_TYPE *atyp = NULL; - if (genconf) { + if (genconf != NULL) { if ((cnf = app_load_config(genconf)) == NULL) goto err; - if (!genstr) + if (genstr == NULL) genstr = NCONF_get_string(cnf, "default", "asn1"); - if (!genstr) { + if (genstr == NULL) { BIO_printf(bio_err, "Can't find 'asn1' in '%s'\n", genconf); goto err; } @@ -305,7 +335,7 @@ static int do_generate(char *genstr, char *genconf, BUF_MEM *buf) NCONF_free(cnf); cnf = NULL; - if (!atyp) + if (atyp == NULL) return -1; len = i2d_ASN1_TYPE(atyp, NULL);