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- /*
- * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
- *
- * 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
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "apps.h"
- #include "progs.h"
- #include <openssl/bio.h>
- #include <openssl/err.h>
- #include <openssl/x509.h>
- #include <openssl/x509v3.h>
- #include <openssl/pem.h>
- typedef enum OPTION_choice {
- OPT_COMMON,
- OPT_INFORM, OPT_IN, OPT_OUTFORM, OPT_OUT, OPT_KEYFORM, OPT_KEY,
- OPT_ISSUER, OPT_LASTUPDATE, OPT_NEXTUPDATE, OPT_FINGERPRINT,
- OPT_CRLNUMBER, OPT_BADSIG, OPT_GENDELTA, OPT_CAPATH, OPT_CAFILE, OPT_CASTORE,
- OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE, OPT_VERIFY, OPT_DATEOPT, OPT_TEXT, OPT_HASH,
- OPT_HASH_OLD, OPT_NOOUT, OPT_NAMEOPT, OPT_MD, OPT_PROV_ENUM
- } OPTION_CHOICE;
- const OPTIONS crl_options[] = {
- OPT_SECTION("General"),
- {"help", OPT_HELP, '-', "Display this summary"},
- {"verify", OPT_VERIFY, '-', "Verify CRL signature"},
- OPT_SECTION("Input"),
- {"in", OPT_IN, '<', "Input file - default stdin"},
- {"inform", OPT_INFORM, 'F', "CRL input format (DER or PEM); has no effect"},
- {"key", OPT_KEY, '<', "CRL signing Private key to use"},
- {"keyform", OPT_KEYFORM, 'F', "Private key file format (DER/PEM/P12); has no effect"},
- OPT_SECTION("Output"),
- {"out", OPT_OUT, '>', "output file - default stdout"},
- {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"},
- {"dateopt", OPT_DATEOPT, 's', "Datetime format used for printing. (rfc_822/iso_8601). Default is rfc_822."},
- {"text", OPT_TEXT, '-', "Print out a text format version"},
- {"hash", OPT_HASH, '-', "Print hash value"},
- #ifndef OPENSSL_NO_MD5
- {"hash_old", OPT_HASH_OLD, '-', "Print old-style (MD5) hash value"},
- #endif
- {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
- {"", OPT_MD, '-', "Any supported digest"},
- OPT_SECTION("CRL"),
- {"issuer", OPT_ISSUER, '-', "Print issuer DN"},
- {"lastupdate", OPT_LASTUPDATE, '-', "Set lastUpdate field"},
- {"nextupdate", OPT_NEXTUPDATE, '-', "Set nextUpdate field"},
- {"noout", OPT_NOOUT, '-', "No CRL output"},
- {"fingerprint", OPT_FINGERPRINT, '-', "Print the crl fingerprint"},
- {"crlnumber", OPT_CRLNUMBER, '-', "Print CRL number"},
- {"badsig", OPT_BADSIG, '-', "Corrupt last byte of loaded CRL signature (for test)" },
- {"gendelta", OPT_GENDELTA, '<', "Other CRL to compare/diff to the Input one"},
- OPT_SECTION("Certificate"),
- {"CApath", OPT_CAPATH, '/', "Verify CRL using certificates in dir"},
- {"CAfile", OPT_CAFILE, '<', "Verify CRL using certificates in file name"},
- {"CAstore", OPT_CASTORE, ':', "Verify CRL using certificates in store URI"},
- {"no-CAfile", OPT_NOCAFILE, '-',
- "Do not load the default certificates file"},
- {"no-CApath", OPT_NOCAPATH, '-',
- "Do not load certificates from the default certificates directory"},
- {"no-CAstore", OPT_NOCASTORE, '-',
- "Do not load certificates from the default certificates store"},
- OPT_PROV_OPTIONS,
- {NULL}
- };
- int crl_main(int argc, char **argv)
- {
- X509_CRL *x = NULL;
- BIO *out = NULL;
- X509_STORE *store = NULL;
- X509_STORE_CTX *ctx = NULL;
- X509_LOOKUP *lookup = NULL;
- X509_OBJECT *xobj = NULL;
- EVP_PKEY *pkey;
- EVP_MD *digest = (EVP_MD *)EVP_sha1();
- char *infile = NULL, *outfile = NULL, *crldiff = NULL, *keyfile = NULL;
- char *digestname = NULL;
- const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL, *prog;
- OPTION_CHOICE o;
- int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout = 0;
- int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyformat = FORMAT_UNDEF;
- int ret = 1, num = 0, badsig = 0, fingerprint = 0, crlnumber = 0;
- int text = 0, do_ver = 0, noCAfile = 0, noCApath = 0, noCAstore = 0;
- unsigned long dateopt = ASN1_DTFLGS_RFC822;
- int i;
- #ifndef OPENSSL_NO_MD5
- int hash_old = 0;
- #endif
- opt_set_unknown_name("digest");
- prog = opt_init(argc, argv, crl_options);
- while ((o = opt_next()) != OPT_EOF) {
- switch (o) {
- case OPT_EOF:
- case OPT_ERR:
- opthelp:
- BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
- goto end;
- case OPT_HELP:
- opt_help(crl_options);
- ret = 0;
- goto end;
- case OPT_INFORM:
- if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
- goto opthelp;
- break;
- case OPT_IN:
- infile = opt_arg();
- break;
- case OPT_OUTFORM:
- if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
- goto opthelp;
- break;
- case OPT_OUT:
- outfile = opt_arg();
- break;
- case OPT_KEYFORM:
- if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyformat))
- goto opthelp;
- break;
- case OPT_KEY:
- keyfile = opt_arg();
- break;
- case OPT_GENDELTA:
- crldiff = opt_arg();
- break;
- case OPT_CAPATH:
- CApath = opt_arg();
- do_ver = 1;
- break;
- case OPT_CAFILE:
- CAfile = opt_arg();
- do_ver = 1;
- break;
- case OPT_CASTORE:
- CAstore = opt_arg();
- do_ver = 1;
- break;
- case OPT_NOCAPATH:
- noCApath = 1;
- break;
- case OPT_NOCAFILE:
- noCAfile = 1;
- break;
- case OPT_NOCASTORE:
- noCAstore = 1;
- break;
- case OPT_HASH_OLD:
- #ifndef OPENSSL_NO_MD5
- hash_old = ++num;
- #endif
- break;
- case OPT_VERIFY:
- do_ver = 1;
- break;
- case OPT_DATEOPT:
- if (!set_dateopt(&dateopt, opt_arg()))
- goto opthelp;
- break;
- case OPT_TEXT:
- text = 1;
- break;
- case OPT_HASH:
- hash = ++num;
- break;
- case OPT_ISSUER:
- issuer = ++num;
- break;
- case OPT_LASTUPDATE:
- lastupdate = ++num;
- break;
- case OPT_NEXTUPDATE:
- nextupdate = ++num;
- break;
- case OPT_NOOUT:
- noout = 1;
- break;
- case OPT_FINGERPRINT:
- fingerprint = ++num;
- break;
- case OPT_CRLNUMBER:
- crlnumber = ++num;
- break;
- case OPT_BADSIG:
- badsig = 1;
- break;
- case OPT_NAMEOPT:
- if (!set_nameopt(opt_arg()))
- goto opthelp;
- break;
- case OPT_MD:
- digestname = opt_unknown();
- break;
- case OPT_PROV_CASES:
- if (!opt_provider(o))
- goto end;
- break;
- }
- }
- /* No remaining args. */
- if (!opt_check_rest_arg(NULL))
- goto opthelp;
- if (!opt_md(digestname, &digest))
- goto opthelp;
- x = load_crl(infile, informat, 1, "CRL");
- if (x == NULL)
- goto end;
- if (do_ver) {
- if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
- CAstore, noCAstore)) == NULL)
- goto end;
- lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
- if (lookup == NULL)
- goto end;
- ctx = X509_STORE_CTX_new();
- if (ctx == NULL || !X509_STORE_CTX_init(ctx, store, NULL, NULL)) {
- BIO_printf(bio_err, "Error initialising X509 store\n");
- goto end;
- }
- xobj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509,
- X509_CRL_get_issuer(x));
- if (xobj == NULL) {
- BIO_printf(bio_err, "Error getting CRL issuer certificate\n");
- goto end;
- }
- pkey = X509_get_pubkey(X509_OBJECT_get0_X509(xobj));
- X509_OBJECT_free(xobj);
- if (pkey == NULL) {
- BIO_printf(bio_err, "Error getting CRL issuer public key\n");
- goto end;
- }
- i = X509_CRL_verify(x, pkey);
- EVP_PKEY_free(pkey);
- if (i < 0)
- goto end;
- if (i == 0) {
- BIO_printf(bio_err, "verify failure\n");
- goto end;
- } else
- BIO_printf(bio_err, "verify OK\n");
- }
- if (crldiff != NULL) {
- X509_CRL *newcrl, *delta;
- if (!keyfile) {
- BIO_puts(bio_err, "Missing CRL signing key\n");
- goto end;
- }
- newcrl = load_crl(crldiff, informat, 0, "other CRL");
- if (!newcrl)
- goto end;
- pkey = load_key(keyfile, keyformat, 0, NULL, NULL, "CRL signing key");
- if (pkey == NULL) {
- X509_CRL_free(newcrl);
- goto end;
- }
- delta = X509_CRL_diff(x, newcrl, pkey, digest, 0);
- X509_CRL_free(newcrl);
- EVP_PKEY_free(pkey);
- if (delta) {
- X509_CRL_free(x);
- x = delta;
- } else {
- BIO_puts(bio_err, "Error creating delta CRL\n");
- goto end;
- }
- }
- if (badsig) {
- const ASN1_BIT_STRING *sig;
- X509_CRL_get0_signature(x, &sig, NULL);
- corrupt_signature(sig);
- }
- if (num) {
- for (i = 1; i <= num; i++) {
- if (issuer == i) {
- print_name(bio_out, "issuer=", X509_CRL_get_issuer(x));
- }
- if (crlnumber == i) {
- ASN1_INTEGER *crlnum;
- crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL);
- BIO_printf(bio_out, "crlNumber=");
- if (crlnum) {
- BIO_puts(bio_out, "0x");
- i2a_ASN1_INTEGER(bio_out, crlnum);
- ASN1_INTEGER_free(crlnum);
- } else {
- BIO_puts(bio_out, "<NONE>");
- }
- BIO_printf(bio_out, "\n");
- }
- if (hash == i) {
- int ok;
- unsigned long hash_value =
- X509_NAME_hash_ex(X509_CRL_get_issuer(x), app_get0_libctx(),
- app_get0_propq(), &ok);
- if (num > 1)
- BIO_printf(bio_out, "issuer name hash=");
- if (ok) {
- BIO_printf(bio_out, "%08lx\n", hash_value);
- } else {
- BIO_puts(bio_out, "<ERROR>");
- goto end;
- }
- }
- #ifndef OPENSSL_NO_MD5
- if (hash_old == i) {
- if (num > 1)
- BIO_printf(bio_out, "issuer name old hash=");
- BIO_printf(bio_out, "%08lx\n",
- X509_NAME_hash_old(X509_CRL_get_issuer(x)));
- }
- #endif
- if (lastupdate == i) {
- BIO_printf(bio_out, "lastUpdate=");
- ASN1_TIME_print_ex(bio_out, X509_CRL_get0_lastUpdate(x), dateopt);
- BIO_printf(bio_out, "\n");
- }
- if (nextupdate == i) {
- BIO_printf(bio_out, "nextUpdate=");
- if (X509_CRL_get0_nextUpdate(x))
- ASN1_TIME_print_ex(bio_out, X509_CRL_get0_nextUpdate(x), dateopt);
- else
- BIO_printf(bio_out, "NONE");
- BIO_printf(bio_out, "\n");
- }
- if (fingerprint == i) {
- int j;
- unsigned int n;
- unsigned char md[EVP_MAX_MD_SIZE];
- if (!X509_CRL_digest(x, digest, md, &n)) {
- BIO_printf(bio_err, "out of memory\n");
- goto end;
- }
- BIO_printf(bio_out, "%s Fingerprint=",
- EVP_MD_get0_name(digest));
- for (j = 0; j < (int)n; j++) {
- BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n)
- ? '\n' : ':');
- }
- }
- }
- }
- out = bio_open_default(outfile, 'w', outformat);
- if (out == NULL)
- goto end;
- if (text)
- X509_CRL_print_ex(out, x, get_nameopt());
- if (noout) {
- ret = 0;
- goto end;
- }
- if (outformat == FORMAT_ASN1)
- i = (int)i2d_X509_CRL_bio(out, x);
- else
- i = PEM_write_bio_X509_CRL(out, x);
- if (!i) {
- BIO_printf(bio_err, "unable to write CRL\n");
- goto end;
- }
- ret = 0;
- end:
- if (ret != 0)
- ERR_print_errors(bio_err);
- BIO_free_all(out);
- EVP_MD_free(digest);
- X509_CRL_free(x);
- X509_STORE_CTX_free(ctx);
- X509_STORE_free(store);
- return ret;
- }
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