| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* Copyright 2017 greenbytes GmbH (https://www.greenbytes.de) |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <assert.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include <apr_lib.h> |
| #include <apr_buckets.h> |
| #include <apr_file_io.h> |
| #include <apr_strings.h> |
| |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #include <openssl/pem.h> |
| #include <openssl/rand.h> |
| #include <openssl/rsa.h> |
| #include <openssl/x509v3.h> |
| |
| #include "md.h" |
| #include "md_crypt.h" |
| #include "md_json.h" |
| #include "md_log.h" |
| #include "md_http.h" |
| #include "md_util.h" |
| |
| /* getpid for *NIX */ |
| #if APR_HAVE_SYS_TYPES_H |
| #include <sys/types.h> |
| #endif |
| #if APR_HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| /* getpid for Windows */ |
| #if APR_HAVE_PROCESS_H |
| #include <process.h> |
| #endif |
| |
| static int initialized; |
| |
| struct md_pkey_t { |
| apr_pool_t *pool; |
| EVP_PKEY *pkey; |
| }; |
| |
| #ifdef MD_HAVE_ARC4RANDOM |
| |
| static void seed_RAND(int pid) |
| { |
| char seed[128]; |
| |
| (void)pid; |
| arc4random_buf(seed, sizeof(seed)); |
| RAND_seed(seed, sizeof(seed)); |
| } |
| |
| #else /* ifdef MD_HAVE_ARC4RANDOM */ |
| |
| static int rand_choosenum(int l, int h) |
| { |
| int i; |
| char buf[50]; |
| |
| apr_snprintf(buf, sizeof(buf), "%.0f", |
| (((double)(rand()%RAND_MAX)/RAND_MAX)*(h-l))); |
| i = atoi(buf)+1; |
| if (i < l) i = l; |
| if (i > h) i = h; |
| return i; |
| } |
| |
| static void seed_RAND(int pid) |
| { |
| unsigned char stackdata[256]; |
| /* stolen from mod_ssl/ssl_engine_rand.c */ |
| int n; |
| struct { |
| time_t t; |
| pid_t pid; |
| } my_seed; |
| |
| /* |
| * seed in the current time (usually just 4 bytes) |
| */ |
| my_seed.t = time(NULL); |
| |
| /* |
| * seed in the current process id (usually just 4 bytes) |
| */ |
| my_seed.pid = pid; |
| |
| RAND_seed((unsigned char *)&my_seed, sizeof(my_seed)); |
| |
| /* |
| * seed in some current state of the run-time stack (128 bytes) |
| */ |
| n = rand_choosenum(0, sizeof(stackdata)-128-1); |
| RAND_seed(stackdata+n, 128); |
| } |
| |
| #endif /*ifdef MD_HAVE_ARC4RANDOM (else part) */ |
| |
| |
| apr_status_t md_crypt_init(apr_pool_t *pool) |
| { |
| (void)pool; |
| |
| if (!initialized) { |
| int pid = getpid(); |
| |
| ERR_load_crypto_strings(); |
| OpenSSL_add_all_algorithms(); |
| |
| md_log_perror(MD_LOG_MARK, MD_LOG_TRACE2, 0, pool, "initializing RAND"); |
| while (!RAND_status()) { |
| seed_RAND(pid); |
| } |
| |
| initialized = 1; |
| } |
| return APR_SUCCESS; |
| } |
| |
| typedef struct { |
| char *data; |
| apr_size_t len; |
| } buffer_rec; |
| |
| static apr_status_t fwrite_buffer(void *baton, apr_file_t *f, apr_pool_t *p) |
| { |
| buffer_rec *buf = baton; |
| |
| (void)p; |
| return apr_file_write_full(f, buf->data, buf->len, &buf->len); |
| } |
| |
| apr_status_t md_rand_bytes(unsigned char *buf, apr_size_t len, apr_pool_t *p) |
| { |
| apr_status_t rv; |
| |
| if (len > INT_MAX) { |
| return APR_ENOTIMPL; |
| } |
| if (APR_SUCCESS == (rv = md_crypt_init(p))) { |
| RAND_bytes((unsigned char*)buf, (int)len); |
| } |
| return rv; |
| } |
| |
| typedef struct { |
| const char *pass_phrase; |
| int pass_len; |
| } passwd_ctx; |
| |
| static int pem_passwd(char *buf, int size, int rwflag, void *baton) |
| { |
| passwd_ctx *ctx = baton; |
| |
| (void)rwflag; |
| if (ctx->pass_len > 0) { |
| if (ctx->pass_len < size) { |
| size = (int)ctx->pass_len; |
| } |
| memcpy(buf, ctx->pass_phrase, (size_t)size); |
| } |
| return ctx->pass_len; |
| } |
| |
| /**************************************************************************************************/ |
| /* date time things */ |
| |
| /* Get the apr time (micro seconds, since 1970) from an ASN1 time, as stored in X509 |
| * certificates. OpenSSL now has a utility function, but other *SSL derivatives have |
| * not caughts up yet or chose to ignore. An alternative is implemented, we prefer |
| * however the *SSL to maintain such things. |
| */ |
| static apr_time_t md_asn1_time_get(const ASN1_TIME* time) |
| { |
| #ifdef LIBRESSL_VERSION_NUMBER |
| /* courtesy: https://stackoverflow.com/questions/10975542/asn1-time-to-time-t-conversion#11263731 |
| * all bugs are mine */ |
| apr_time_exp_t t; |
| apr_time_t ts; |
| const char* str = (const char*) time->data; |
| apr_size_t i = 0; |
| |
| memset(&t, 0, sizeof(t)); |
| |
| if (time->type == V_ASN1_UTCTIME) {/* two digit year */ |
| t.tm_year = (str[i++] - '0') * 10; |
| t.tm_year += (str[i++] - '0'); |
| if (t.tm_year < 70) |
| t.tm_year += 100; |
| } |
| else if (time->type == V_ASN1_GENERALIZEDTIME) {/* four digit year */ |
| t.tm_year = (str[i++] - '0') * 1000; |
| t.tm_year+= (str[i++] - '0') * 100; |
| t.tm_year+= (str[i++] - '0') * 10; |
| t.tm_year+= (str[i++] - '0'); |
| t.tm_year -= 1900; |
| } |
| t.tm_mon = (str[i++] - '0') * 10; |
| t.tm_mon += (str[i++] - '0') - 1; /* -1 since January is 0 not 1. */ |
| t.tm_mday = (str[i++] - '0') * 10; |
| t.tm_mday+= (str[i++] - '0'); |
| t.tm_hour = (str[i++] - '0') * 10; |
| t.tm_hour+= (str[i++] - '0'); |
| t.tm_min = (str[i++] - '0') * 10; |
| t.tm_min += (str[i++] - '0'); |
| t.tm_sec = (str[i++] - '0') * 10; |
| t.tm_sec += (str[i++] - '0'); |
| |
| if (APR_SUCCESS == apr_time_exp_gmt_get(&ts, &t)) { |
| return ts; |
| } |
| return 0; |
| #else |
| int secs, days; |
| apr_time_t ts = apr_time_now(); |
| |
| if (ASN1_TIME_diff(&days, &secs, NULL, time)) { |
| ts += apr_time_from_sec((days * MD_SECS_PER_DAY) + secs); |
| } |
| return ts; |
| #endif |
| } |
| |
| |
| /**************************************************************************************************/ |
| /* private keys */ |
| |
| md_json_t *md_pkey_spec_to_json(const md_pkey_spec_t *spec, apr_pool_t *p) |
| { |
| md_json_t *json = md_json_create(p); |
| if (json) { |
| switch (spec->type) { |
| case MD_PKEY_TYPE_DEFAULT: |
| md_json_sets("Default", json, MD_KEY_TYPE, NULL); |
| break; |
| case MD_PKEY_TYPE_RSA: |
| md_json_sets("RSA", json, MD_KEY_TYPE, NULL); |
| if (spec->params.rsa.bits >= MD_PKEY_RSA_BITS_MIN) { |
| md_json_setl((long)spec->params.rsa.bits, json, MD_KEY_BITS, NULL); |
| } |
| break; |
| default: |
| md_json_sets("Unsupported", json, MD_KEY_TYPE, NULL); |
| break; |
| } |
| } |
| return json; |
| } |
| |
| md_pkey_spec_t *md_pkey_spec_from_json(struct md_json_t *json, apr_pool_t *p) |
| { |
| md_pkey_spec_t *spec = apr_pcalloc(p, sizeof(*spec)); |
| const char *s; |
| long l; |
| |
| if (spec) { |
| s = md_json_gets(json, MD_KEY_TYPE, NULL); |
| if (!s || !apr_strnatcasecmp("Default", s)) { |
| spec->type = MD_PKEY_TYPE_DEFAULT; |
| } |
| else if (!apr_strnatcasecmp("RSA", s)) { |
| spec->type = MD_PKEY_TYPE_RSA; |
| l = md_json_getl(json, MD_KEY_BITS, NULL); |
| if (l >= MD_PKEY_RSA_BITS_MIN) { |
| spec->params.rsa.bits = (unsigned int)l; |
| } |
| else { |
| spec->params.rsa.bits = MD_PKEY_RSA_BITS_DEF; |
| } |
| } |
| } |
| return spec; |
| } |
| |
| int md_pkey_spec_eq(md_pkey_spec_t *spec1, md_pkey_spec_t *spec2) |
| { |
| if (spec1 == spec2) { |
| return 1; |
| } |
| if (spec1 && spec2 && spec1->type == spec2->type) { |
| switch (spec1->type) { |
| case MD_PKEY_TYPE_DEFAULT: |
| return 1; |
| case MD_PKEY_TYPE_RSA: |
| if (spec1->params.rsa.bits == spec2->params.rsa.bits) { |
| return 1; |
| } |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| static md_pkey_t *make_pkey(apr_pool_t *p) |
| { |
| md_pkey_t *pkey = apr_pcalloc(p, sizeof(*pkey)); |
| pkey->pool = p; |
| return pkey; |
| } |
| |
| static apr_status_t pkey_cleanup(void *data) |
| { |
| md_pkey_t *pkey = data; |
| if (pkey->pkey) { |
| EVP_PKEY_free(pkey->pkey); |
| pkey->pkey = NULL; |
| } |
| return APR_SUCCESS; |
| } |
| |
| void md_pkey_free(md_pkey_t *pkey) |
| { |
| pkey_cleanup(pkey); |
| } |
| |
| void *md_pkey_get_EVP_PKEY(struct md_pkey_t *pkey) |
| { |
| return pkey->pkey; |
| } |
| |
| apr_status_t md_pkey_fload(md_pkey_t **ppkey, apr_pool_t *p, |
| const char *key, apr_size_t key_len, |
| const char *fname) |
| { |
| apr_status_t rv = APR_ENOENT; |
| md_pkey_t *pkey; |
| BIO *bf; |
| passwd_ctx ctx; |
| |
| pkey = make_pkey(p); |
| if (NULL != (bf = BIO_new_file(fname, "r"))) { |
| ctx.pass_phrase = key; |
| ctx.pass_len = (int)key_len; |
| |
| ERR_clear_error(); |
| pkey->pkey = PEM_read_bio_PrivateKey(bf, NULL, pem_passwd, &ctx); |
| BIO_free(bf); |
| |
| if (pkey->pkey != NULL) { |
| rv = APR_SUCCESS; |
| apr_pool_cleanup_register(p, pkey, pkey_cleanup, apr_pool_cleanup_null); |
| } |
| else { |
| unsigned long err = ERR_get_error(); |
| rv = APR_EINVAL; |
| md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, rv, p, |
| "error loading pkey %s: %s (pass phrase was %snull)", fname, |
| ERR_error_string(err, NULL), key? "not " : ""); |
| } |
| } |
| *ppkey = (APR_SUCCESS == rv)? pkey : NULL; |
| return rv; |
| } |
| |
| static apr_status_t pkey_to_buffer(buffer_rec *buffer, md_pkey_t *pkey, apr_pool_t *p, |
| const char *pass, apr_size_t pass_len) |
| { |
| BIO *bio = BIO_new(BIO_s_mem()); |
| const EVP_CIPHER *cipher = NULL; |
| pem_password_cb *cb = NULL; |
| void *cb_baton = NULL; |
| passwd_ctx ctx; |
| unsigned long err; |
| int i; |
| |
| if (!bio) { |
| return APR_ENOMEM; |
| } |
| if (pass_len > INT_MAX) { |
| return APR_EINVAL; |
| } |
| if (pass && pass_len > 0) { |
| ctx.pass_phrase = pass; |
| ctx.pass_len = (int)pass_len; |
| cb = pem_passwd; |
| cb_baton = &ctx; |
| cipher = EVP_aes_256_cbc(); |
| if (!cipher) { |
| return APR_ENOTIMPL; |
| } |
| } |
| |
| ERR_clear_error(); |
| if (!PEM_write_bio_PrivateKey(bio, pkey->pkey, cipher, NULL, 0, cb, cb_baton)) { |
| BIO_free(bio); |
| err = ERR_get_error(); |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "PEM_write key: %ld %s", |
| err, ERR_error_string(err, NULL)); |
| return APR_EINVAL; |
| } |
| |
| i = BIO_pending(bio); |
| if (i > 0) { |
| buffer->data = apr_palloc(p, (apr_size_t)i + 1); |
| i = BIO_read(bio, buffer->data, i); |
| buffer->data[i] = '\0'; |
| buffer->len = (apr_size_t)i; |
| } |
| BIO_free(bio); |
| return APR_SUCCESS; |
| } |
| |
| apr_status_t md_pkey_fsave(md_pkey_t *pkey, apr_pool_t *p, |
| const char *pass_phrase, apr_size_t pass_len, |
| const char *fname, apr_fileperms_t perms) |
| { |
| buffer_rec buffer; |
| apr_status_t rv; |
| |
| if (APR_SUCCESS == (rv = pkey_to_buffer(&buffer, pkey, p, pass_phrase, pass_len))) { |
| return md_util_freplace(fname, perms, p, fwrite_buffer, &buffer); |
| } |
| md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, "save pkey %s (%s pass phrase, len=%d)", |
| fname, pass_len > 0? "with" : "without", (int)pass_len); |
| return rv; |
| } |
| |
| static apr_status_t gen_rsa(md_pkey_t **ppkey, apr_pool_t *p, unsigned int bits) |
| { |
| EVP_PKEY_CTX *ctx = NULL; |
| apr_status_t rv; |
| |
| *ppkey = make_pkey(p); |
| ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_RSA, NULL); |
| if (ctx |
| && EVP_PKEY_keygen_init(ctx) >= 0 |
| && EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, (int)bits) >= 0 |
| && EVP_PKEY_keygen(ctx, &(*ppkey)->pkey) >= 0) { |
| rv = APR_SUCCESS; |
| } |
| else { |
| md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, 0, p, "error generate pkey RSA %d", bits); |
| *ppkey = NULL; |
| rv = APR_EGENERAL; |
| } |
| |
| if (ctx != NULL) { |
| EVP_PKEY_CTX_free(ctx); |
| } |
| return rv; |
| } |
| |
| apr_status_t md_pkey_gen(md_pkey_t **ppkey, apr_pool_t *p, md_pkey_spec_t *spec) |
| { |
| md_pkey_type_t ptype = spec? spec->type : MD_PKEY_TYPE_DEFAULT; |
| switch (ptype) { |
| case MD_PKEY_TYPE_DEFAULT: |
| return gen_rsa(ppkey, p, MD_PKEY_RSA_BITS_DEF); |
| case MD_PKEY_TYPE_RSA: |
| return gen_rsa(ppkey, p, spec->params.rsa.bits); |
| default: |
| return APR_ENOTIMPL; |
| } |
| } |
| |
| #if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER) |
| |
| #ifndef NID_tlsfeature |
| #define NID_tlsfeature 1020 |
| #endif |
| |
| static void RSA_get0_key(const RSA *r, |
| const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) |
| { |
| if (n != NULL) |
| *n = r->n; |
| if (e != NULL) |
| *e = r->e; |
| if (d != NULL) |
| *d = r->d; |
| } |
| |
| #endif |
| |
| static const char *bn64(const BIGNUM *b, apr_pool_t *p) |
| { |
| if (b) { |
| apr_size_t len = (apr_size_t)BN_num_bytes(b); |
| char *buffer = apr_pcalloc(p, len); |
| if (buffer) { |
| BN_bn2bin(b, (unsigned char *)buffer); |
| return md_util_base64url_encode(buffer, len, p); |
| } |
| } |
| return NULL; |
| } |
| |
| const char *md_pkey_get_rsa_e64(md_pkey_t *pkey, apr_pool_t *p) |
| { |
| const BIGNUM *e; |
| RSA *rsa = EVP_PKEY_get1_RSA(pkey->pkey); |
| |
| if (!rsa) { |
| return NULL; |
| } |
| RSA_get0_key(rsa, NULL, &e, NULL); |
| return bn64(e, p); |
| } |
| |
| const char *md_pkey_get_rsa_n64(md_pkey_t *pkey, apr_pool_t *p) |
| { |
| const BIGNUM *n; |
| RSA *rsa = EVP_PKEY_get1_RSA(pkey->pkey); |
| |
| if (!rsa) { |
| return NULL; |
| } |
| RSA_get0_key(rsa, &n, NULL, NULL); |
| return bn64(n, p); |
| } |
| |
| apr_status_t md_crypt_sign64(const char **psign64, md_pkey_t *pkey, apr_pool_t *p, |
| const char *d, size_t dlen) |
| { |
| EVP_MD_CTX *ctx = NULL; |
| char *buffer; |
| unsigned int blen; |
| const char *sign64 = NULL; |
| apr_status_t rv = APR_ENOMEM; |
| |
| buffer = apr_pcalloc(p, (apr_size_t)EVP_PKEY_size(pkey->pkey)); |
| if (buffer) { |
| ctx = EVP_MD_CTX_create(); |
| if (ctx) { |
| rv = APR_ENOTIMPL; |
| if (EVP_SignInit_ex(ctx, EVP_sha256(), NULL)) { |
| rv = APR_EGENERAL; |
| if (EVP_SignUpdate(ctx, d, dlen)) { |
| if (EVP_SignFinal(ctx, (unsigned char*)buffer, &blen, pkey->pkey)) { |
| sign64 = md_util_base64url_encode(buffer, blen, p); |
| if (sign64) { |
| rv = APR_SUCCESS; |
| } |
| } |
| } |
| } |
| } |
| |
| if (ctx) { |
| EVP_MD_CTX_destroy(ctx); |
| } |
| } |
| |
| if (rv != APR_SUCCESS) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, rv, p, "signing"); |
| } |
| |
| *psign64 = sign64; |
| return rv; |
| } |
| |
| static apr_status_t sha256_digest(unsigned char **pdigest, size_t *pdigest_len, |
| apr_pool_t *p, const char *d, size_t dlen) |
| { |
| EVP_MD_CTX *ctx = NULL; |
| unsigned char *buffer; |
| apr_status_t rv = APR_ENOMEM; |
| unsigned int blen; |
| |
| buffer = apr_pcalloc(p, EVP_MAX_MD_SIZE); |
| if (buffer) { |
| ctx = EVP_MD_CTX_create(); |
| if (ctx) { |
| rv = APR_ENOTIMPL; |
| if (EVP_DigestInit_ex(ctx, EVP_sha256(), NULL)) { |
| rv = APR_EGENERAL; |
| if (EVP_DigestUpdate(ctx, d, dlen)) { |
| if (EVP_DigestFinal(ctx, buffer, &blen)) { |
| rv = APR_SUCCESS; |
| } |
| } |
| } |
| } |
| |
| if (ctx) { |
| EVP_MD_CTX_destroy(ctx); |
| } |
| } |
| |
| if (APR_SUCCESS == rv) { |
| *pdigest = buffer; |
| *pdigest_len = blen; |
| } |
| else { |
| md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, rv, p, "digest"); |
| *pdigest = NULL; |
| *pdigest_len = 0; |
| } |
| return rv; |
| } |
| |
| apr_status_t md_crypt_sha256_digest64(const char **pdigest64, apr_pool_t *p, |
| const char *d, size_t dlen) |
| { |
| const char *digest64 = NULL; |
| unsigned char *buffer; |
| size_t blen; |
| apr_status_t rv; |
| |
| if (APR_SUCCESS == (rv = sha256_digest(&buffer, &blen, p, d, dlen))) { |
| if (NULL == (digest64 = md_util_base64url_encode((const char*)buffer, blen, p))) { |
| rv = APR_EGENERAL; |
| } |
| } |
| *pdigest64 = digest64; |
| return rv; |
| } |
| |
| static const char * const hex_const[] = { |
| "00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0a", "0b", "0c", "0d", "0e", "0f", |
| "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1a", "1b", "1c", "1d", "1e", "1f", |
| "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2a", "2b", "2c", "2d", "2e", "2f", |
| "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3a", "3b", "3c", "3d", "3e", "3f", |
| "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "4a", "4b", "4c", "4d", "4e", "4f", |
| "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "5a", "5b", "5c", "5d", "5e", "5f", |
| "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6a", "6b", "6c", "6d", "6e", "6f", |
| "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "7a", "7b", "7c", "7d", "7e", "7f", |
| "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8a", "8b", "8c", "8d", "8e", "8f", |
| "90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9a", "9b", "9c", "9d", "9e", "9f", |
| "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "aa", "ab", "ac", "ad", "ae", "af", |
| "b0", "b1", "b2", "b3", "b4", "b5", "b6", "b7", "b8", "b9", "ba", "bb", "bc", "bd", "be", "bf", |
| "c0", "c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8", "c9", "ca", "cb", "cc", "cd", "ce", "cf", |
| "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8", "d9", "da", "db", "dc", "dd", "de", "df", |
| "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9", "ea", "eb", "ec", "ed", "ee", "ef", |
| "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "fa", "fb", "fc", "fd", "fe", "ff", |
| }; |
| |
| apr_status_t md_crypt_sha256_digest_hex(const char **pdigesthex, apr_pool_t *p, |
| const char *d, size_t dlen) |
| { |
| char *dhex = NULL, *cp; |
| const char * x; |
| unsigned char *buffer; |
| size_t blen; |
| apr_status_t rv; |
| unsigned int i; |
| |
| if (APR_SUCCESS == (rv = sha256_digest(&buffer, &blen, p, d, dlen))) { |
| cp = dhex = apr_pcalloc(p, 2 * blen + 1); |
| if (!dhex) { |
| rv = APR_EGENERAL; |
| } |
| for (i = 0; i < blen; ++i, cp += 2) { |
| x = hex_const[buffer[i]]; |
| cp[0] = x[0]; |
| cp[1] = x[1]; |
| } |
| } |
| *pdigesthex = dhex; |
| return rv; |
| } |
| |
| /**************************************************************************************************/ |
| /* certificates */ |
| |
| struct md_cert_t { |
| apr_pool_t *pool; |
| X509 *x509; |
| apr_array_header_t *alt_names; |
| }; |
| |
| static apr_status_t cert_cleanup(void *data) |
| { |
| md_cert_t *cert = data; |
| if (cert->x509) { |
| X509_free(cert->x509); |
| cert->x509 = NULL; |
| } |
| return APR_SUCCESS; |
| } |
| |
| static md_cert_t *make_cert(apr_pool_t *p, X509 *x509) |
| { |
| md_cert_t *cert = apr_pcalloc(p, sizeof(*cert)); |
| cert->pool = p; |
| cert->x509 = x509; |
| apr_pool_cleanup_register(p, cert, cert_cleanup, apr_pool_cleanup_null); |
| |
| return cert; |
| } |
| |
| void md_cert_free(md_cert_t *cert) |
| { |
| cert_cleanup(cert); |
| } |
| |
| void *md_cert_get_X509(struct md_cert_t *cert) |
| { |
| return cert->x509; |
| } |
| |
| int md_cert_is_valid_now(const md_cert_t *cert) |
| { |
| return ((X509_cmp_current_time(X509_get_notBefore(cert->x509)) < 0) |
| && (X509_cmp_current_time(X509_get_notAfter(cert->x509)) > 0)); |
| } |
| |
| int md_cert_has_expired(const md_cert_t *cert) |
| { |
| return (X509_cmp_current_time(X509_get_notAfter(cert->x509)) <= 0); |
| } |
| |
| apr_time_t md_cert_get_not_after(md_cert_t *cert) |
| { |
| return md_asn1_time_get(X509_get_notAfter(cert->x509)); |
| } |
| |
| apr_time_t md_cert_get_not_before(md_cert_t *cert) |
| { |
| return md_asn1_time_get(X509_get_notBefore(cert->x509)); |
| } |
| |
| int md_cert_covers_domain(md_cert_t *cert, const char *domain_name) |
| { |
| if (!cert->alt_names) { |
| md_cert_get_alt_names(&cert->alt_names, cert, cert->pool); |
| } |
| if (cert->alt_names) { |
| return md_array_str_index(cert->alt_names, domain_name, 0, 0) >= 0; |
| } |
| return 0; |
| } |
| |
| int md_cert_covers_md(md_cert_t *cert, const md_t *md) |
| { |
| const char *name; |
| int i; |
| |
| if (!cert->alt_names) { |
| md_cert_get_alt_names(&cert->alt_names, cert, cert->pool); |
| } |
| if (cert->alt_names) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_TRACE4, 0, cert->pool, "cert has %d alt names", |
| cert->alt_names->nelts); |
| for (i = 0; i < md->domains->nelts; ++i) { |
| name = APR_ARRAY_IDX(md->domains, i, const char *); |
| if (md_array_str_index(cert->alt_names, name, 0, 0) < 0) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_TRACE1, 0, cert->pool, |
| "md domain %s not covered by cert", name); |
| return 0; |
| } |
| } |
| return 1; |
| } |
| else { |
| md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, 0, cert->pool, "cert has NO alt names"); |
| } |
| return 0; |
| } |
| |
| apr_status_t md_cert_get_issuers_uri(const char **puri, md_cert_t *cert, apr_pool_t *p) |
| { |
| apr_status_t rv = APR_ENOENT; |
| STACK_OF(ACCESS_DESCRIPTION) *xinfos; |
| const char *uri = NULL; |
| unsigned char *buf; |
| int i; |
| |
| xinfos = X509_get_ext_d2i(cert->x509, NID_info_access, NULL, NULL); |
| if (xinfos) { |
| for (i = 0; i < sk_ACCESS_DESCRIPTION_num(xinfos); i++) { |
| ACCESS_DESCRIPTION *val = sk_ACCESS_DESCRIPTION_value(xinfos, i); |
| if (OBJ_obj2nid(val->method) == NID_ad_ca_issuers |
| && val->location && val->location->type == GEN_URI) { |
| ASN1_STRING_to_UTF8(&buf, val->location->d.uniformResourceIdentifier); |
| uri = apr_pstrdup(p, (char *)buf); |
| OPENSSL_free(buf); |
| rv = APR_SUCCESS; |
| break; |
| } |
| } |
| sk_ACCESS_DESCRIPTION_pop_free(xinfos, ACCESS_DESCRIPTION_free); |
| } |
| *puri = (APR_SUCCESS == rv)? uri : NULL; |
| return rv; |
| } |
| |
| apr_status_t md_cert_get_alt_names(apr_array_header_t **pnames, md_cert_t *cert, apr_pool_t *p) |
| { |
| apr_array_header_t *names; |
| apr_status_t rv = APR_ENOENT; |
| STACK_OF(GENERAL_NAME) *xalt_names; |
| unsigned char *buf; |
| int i; |
| |
| xalt_names = X509_get_ext_d2i(cert->x509, NID_subject_alt_name, NULL, NULL); |
| if (xalt_names) { |
| GENERAL_NAME *cval; |
| |
| names = apr_array_make(p, sk_GENERAL_NAME_num(xalt_names), sizeof(char *)); |
| for (i = 0; i < sk_GENERAL_NAME_num(xalt_names); ++i) { |
| cval = sk_GENERAL_NAME_value(xalt_names, i); |
| switch (cval->type) { |
| case GEN_DNS: |
| case GEN_URI: |
| case GEN_IPADD: |
| ASN1_STRING_to_UTF8(&buf, cval->d.ia5); |
| APR_ARRAY_PUSH(names, const char *) = apr_pstrdup(p, (char*)buf); |
| OPENSSL_free(buf); |
| break; |
| default: |
| break; |
| } |
| } |
| sk_GENERAL_NAME_pop_free(xalt_names, GENERAL_NAME_free); |
| rv = APR_SUCCESS; |
| } |
| *pnames = (APR_SUCCESS == rv)? names : NULL; |
| return rv; |
| } |
| |
| apr_status_t md_cert_fload(md_cert_t **pcert, apr_pool_t *p, const char *fname) |
| { |
| FILE *f; |
| apr_status_t rv; |
| md_cert_t *cert; |
| X509 *x509; |
| |
| rv = md_util_fopen(&f, fname, "r"); |
| if (rv == APR_SUCCESS) { |
| |
| x509 = PEM_read_X509(f, NULL, NULL, NULL); |
| rv = fclose(f); |
| if (x509 != NULL) { |
| cert = make_cert(p, x509); |
| } |
| else { |
| rv = APR_EINVAL; |
| } |
| } |
| |
| *pcert = (APR_SUCCESS == rv)? cert : NULL; |
| return rv; |
| } |
| |
| static apr_status_t cert_to_buffer(buffer_rec *buffer, md_cert_t *cert, apr_pool_t *p) |
| { |
| BIO *bio = BIO_new(BIO_s_mem()); |
| int i; |
| |
| if (!bio) { |
| return APR_ENOMEM; |
| } |
| |
| ERR_clear_error(); |
| PEM_write_bio_X509(bio, cert->x509); |
| if (ERR_get_error() > 0) { |
| BIO_free(bio); |
| return APR_EINVAL; |
| } |
| |
| i = BIO_pending(bio); |
| if (i > 0) { |
| buffer->data = apr_palloc(p, (apr_size_t)i + 1); |
| i = BIO_read(bio, buffer->data, i); |
| buffer->data[i] = '\0'; |
| buffer->len = (apr_size_t)i; |
| } |
| BIO_free(bio); |
| return APR_SUCCESS; |
| } |
| |
| apr_status_t md_cert_fsave(md_cert_t *cert, apr_pool_t *p, |
| const char *fname, apr_fileperms_t perms) |
| { |
| buffer_rec buffer; |
| apr_status_t rv; |
| |
| if (APR_SUCCESS == (rv = cert_to_buffer(&buffer, cert, p))) { |
| return md_util_freplace(fname, perms, p, fwrite_buffer, &buffer); |
| } |
| return rv; |
| } |
| |
| apr_status_t md_cert_to_base64url(const char **ps64, md_cert_t *cert, apr_pool_t *p) |
| { |
| buffer_rec buffer; |
| apr_status_t rv; |
| |
| if (APR_SUCCESS == (rv = cert_to_buffer(&buffer, cert, p))) { |
| *ps64 = md_util_base64url_encode(buffer.data, buffer.len, p); |
| return APR_SUCCESS; |
| } |
| *ps64 = NULL; |
| return rv; |
| } |
| |
| apr_status_t md_cert_read_http(md_cert_t **pcert, apr_pool_t *p, |
| const md_http_response_t *res) |
| { |
| const char *ct; |
| apr_off_t data_len; |
| apr_size_t der_len; |
| apr_status_t rv; |
| |
| ct = apr_table_get(res->headers, "Content-Type"); |
| if (!res->body || !ct || strcmp("application/pkix-cert", ct)) { |
| return APR_ENOENT; |
| } |
| |
| if (APR_SUCCESS == (rv = apr_brigade_length(res->body, 1, &data_len))) { |
| char *der; |
| if (data_len > 1024*1024) { /* certs usually are <2k each */ |
| return APR_EINVAL; |
| } |
| if (APR_SUCCESS == (rv = apr_brigade_pflatten(res->body, &der, &der_len, p))) { |
| const unsigned char *bf = (const unsigned char*)der; |
| X509 *x509; |
| |
| if (NULL == (x509 = d2i_X509(NULL, &bf, (long)der_len))) { |
| rv = APR_EINVAL; |
| } |
| else { |
| *pcert = make_cert(p, x509); |
| rv = APR_SUCCESS; |
| } |
| } |
| md_log_perror(MD_LOG_MARK, MD_LOG_TRACE3, rv, p, "cert parsed"); |
| } |
| return rv; |
| } |
| |
| md_cert_state_t md_cert_state_get(md_cert_t *cert) |
| { |
| if (cert->x509) { |
| return md_cert_is_valid_now(cert)? MD_CERT_VALID : MD_CERT_EXPIRED; |
| } |
| return MD_CERT_UNKNOWN; |
| } |
| |
| apr_status_t md_chain_fappend(struct apr_array_header_t *certs, apr_pool_t *p, const char *fname) |
| { |
| FILE *f; |
| apr_status_t rv; |
| X509 *x509; |
| md_cert_t *cert; |
| unsigned long err; |
| |
| rv = md_util_fopen(&f, fname, "r"); |
| if (rv == APR_SUCCESS) { |
| ERR_clear_error(); |
| while (NULL != (x509 = PEM_read_X509(f, NULL, NULL, NULL))) { |
| cert = make_cert(p, x509); |
| APR_ARRAY_PUSH(certs, md_cert_t *) = cert; |
| } |
| fclose(f); |
| |
| if (0 < (err = ERR_get_error()) |
| && !(ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)) { |
| /* not the expected one when no more PEM encodings are found */ |
| rv = APR_EINVAL; |
| goto out; |
| } |
| |
| if (certs->nelts == 0) { |
| /* Did not find any. This is acceptable unless the file has a certain size |
| * when we no longer accept it as empty chain file. Something seems to be |
| * wrong then. */ |
| apr_finfo_t info; |
| if (APR_SUCCESS == apr_stat(&info, fname, APR_FINFO_SIZE, p) && info.size >= 1024) { |
| /* "Too big for a moon." */ |
| rv = APR_EINVAL; |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, |
| "no certificates in non-empty chain %s", fname); |
| goto out; |
| } |
| } |
| } |
| out: |
| md_log_perror(MD_LOG_MARK, MD_LOG_TRACE3, rv, p, "read chain file %s, found %d certs", |
| fname, certs? certs->nelts : 0); |
| return rv; |
| } |
| |
| apr_status_t md_chain_fload(apr_array_header_t **pcerts, apr_pool_t *p, const char *fname) |
| { |
| apr_array_header_t *certs; |
| apr_status_t rv; |
| |
| certs = apr_array_make(p, 5, sizeof(md_cert_t *)); |
| rv = md_chain_fappend(certs, p, fname); |
| *pcerts = (APR_SUCCESS == rv)? certs : NULL; |
| return rv; |
| } |
| |
| apr_status_t md_chain_fsave(apr_array_header_t *certs, apr_pool_t *p, |
| const char *fname, apr_fileperms_t perms) |
| { |
| FILE *f; |
| apr_status_t rv; |
| const md_cert_t *cert; |
| unsigned long err = 0; |
| int i; |
| |
| (void)p; |
| rv = md_util_fopen(&f, fname, "w"); |
| if (rv == APR_SUCCESS) { |
| apr_file_perms_set(fname, perms); |
| ERR_clear_error(); |
| for (i = 0; i < certs->nelts; ++i) { |
| cert = APR_ARRAY_IDX(certs, i, const md_cert_t *); |
| assert(cert->x509); |
| |
| PEM_write_X509(f, cert->x509); |
| |
| if (0 < (err = ERR_get_error())) { |
| break; |
| } |
| |
| } |
| rv = fclose(f); |
| if (err) { |
| rv = APR_EINVAL; |
| } |
| } |
| return rv; |
| } |
| |
| /**************************************************************************************************/ |
| /* certificate signing requests */ |
| |
| static const char *alt_names(apr_array_header_t *domains, apr_pool_t *p) |
| { |
| const char *alts = "", *sep = "", *domain; |
| int i; |
| |
| for (i = 0; i < domains->nelts; ++i) { |
| domain = APR_ARRAY_IDX(domains, i, const char *); |
| alts = apr_psprintf(p, "%s%sDNS:%s", alts, sep, domain); |
| sep = ","; |
| } |
| return alts; |
| } |
| |
| static apr_status_t add_ext(X509 *x, int nid, const char *value, apr_pool_t *p) |
| { |
| X509_EXTENSION *ext = NULL; |
| X509V3_CTX ctx; |
| apr_status_t rv; |
| |
| X509V3_set_ctx_nodb(&ctx); |
| X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0); |
| if (NULL == (ext = X509V3_EXT_conf_nid(NULL, &ctx, nid, (char*)value))) { |
| return APR_EGENERAL; |
| } |
| |
| ERR_clear_error(); |
| rv = X509_add_ext(x, ext, -1)? APR_SUCCESS : APR_EINVAL; |
| if (APR_SUCCESS != rv) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "add_ext nid=%dd value='%s'", |
| nid, value); |
| |
| } |
| X509_EXTENSION_free(ext); |
| return rv; |
| } |
| |
| static apr_status_t sk_add_alt_names(STACK_OF(X509_EXTENSION) *exts, |
| apr_array_header_t *domains, apr_pool_t *p) |
| { |
| if (domains->nelts > 0) { |
| X509_EXTENSION *x; |
| |
| x = X509V3_EXT_conf_nid(NULL, NULL, NID_subject_alt_name, (char*)alt_names(domains, p)); |
| if (NULL == x) { |
| return APR_EGENERAL; |
| } |
| sk_X509_EXTENSION_push(exts, x); |
| } |
| return APR_SUCCESS; |
| } |
| |
| #define MD_OID_MUST_STAPLE_NUM "1.3.6.1.5.5.7.1.24" |
| #define MD_OID_MUST_STAPLE_SNAME "tlsfeature" |
| #define MD_OID_MUST_STAPLE_LNAME "TLS Feature" |
| |
| static int get_must_staple_nid(void) |
| { |
| /* Funny API, the OID for must staple might be configured or |
| * might be not. In the second case, we need to add it. But adding |
| * when it already is there is an error... */ |
| int nid = OBJ_txt2nid(MD_OID_MUST_STAPLE_NUM); |
| if (NID_undef == nid) { |
| nid = OBJ_create(MD_OID_MUST_STAPLE_NUM, |
| MD_OID_MUST_STAPLE_SNAME, MD_OID_MUST_STAPLE_LNAME); |
| } |
| return nid; |
| } |
| |
| int md_cert_must_staple(md_cert_t *cert) |
| { |
| /* In case we do not get the NID for it, we treat this as not set. */ |
| int nid = get_must_staple_nid(); |
| return ((NID_undef != nid)) && X509_get_ext_by_NID(cert->x509, nid, -1) >= 0; |
| } |
| |
| static apr_status_t add_must_staple(STACK_OF(X509_EXTENSION) *exts, const md_t *md, apr_pool_t *p) |
| { |
| |
| if (md->must_staple) { |
| X509_EXTENSION *x; |
| int nid; |
| |
| nid = get_must_staple_nid(); |
| if (NID_undef == nid) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, |
| "%s: unable to get NID for v3 must-staple TLS feature", md->name); |
| return APR_ENOTIMPL; |
| } |
| x = X509V3_EXT_conf_nid(NULL, NULL, nid, (char*)"DER:30:03:02:01:05"); |
| if (NULL == x) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, |
| "%s: unable to create x509 extension for must-staple", md->name); |
| return APR_EGENERAL; |
| } |
| sk_X509_EXTENSION_push(exts, x); |
| } |
| return APR_SUCCESS; |
| } |
| |
| apr_status_t md_cert_req_create(const char **pcsr_der_64, const md_t *md, |
| md_pkey_t *pkey, apr_pool_t *p) |
| { |
| const char *s, *csr_der, *csr_der_64 = NULL; |
| const unsigned char *domain; |
| X509_REQ *csr; |
| X509_NAME *n = NULL; |
| STACK_OF(X509_EXTENSION) *exts = NULL; |
| apr_status_t rv; |
| int csr_der_len; |
| |
| assert(md->domains->nelts > 0); |
| |
| if (NULL == (csr = X509_REQ_new()) |
| || NULL == (exts = sk_X509_EXTENSION_new_null()) |
| || NULL == (n = X509_NAME_new())) { |
| rv = APR_ENOMEM; |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: openssl alloc X509 things", md->name); |
| goto out; |
| } |
| |
| /* subject name == first domain */ |
| domain = APR_ARRAY_IDX(md->domains, 0, const unsigned char *); |
| if (!X509_NAME_add_entry_by_txt(n, "CN", MBSTRING_ASC, domain, -1, -1, 0) |
| || !X509_REQ_set_subject_name(csr, n)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "%s: REQ name add entry", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| /* collect extensions, such as alt names and must staple */ |
| if (APR_SUCCESS != (rv = sk_add_alt_names(exts, md->domains, p))) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: collecting alt names", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| if (APR_SUCCESS != (rv = add_must_staple(exts, md, p))) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: you requested that a certificate " |
| "is created with the 'must-staple' extension, however the SSL library was " |
| "unable to initialized that extension. Please file a bug report on which platform " |
| "and with which library this happens. To continue before this problem is resolved, " |
| "configure 'MDMustStaple off' for your domains", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| /* add extensions to csr */ |
| if (sk_X509_EXTENSION_num(exts) > 0 && !X509_REQ_add_extensions(csr, exts)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: adding exts", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| /* add our key */ |
| if (!X509_REQ_set_pubkey(csr, pkey->pkey)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: set pkey in csr", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| /* sign, der encode and base64url encode */ |
| if (!X509_REQ_sign(csr, pkey->pkey, EVP_sha256())) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: sign csr", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| if ((csr_der_len = i2d_X509_REQ(csr, NULL)) < 0) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: der length", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| s = csr_der = apr_pcalloc(p, (apr_size_t)csr_der_len + 1); |
| if (i2d_X509_REQ(csr, (unsigned char**)&s) != csr_der_len) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: csr der enc", md->name); |
| rv = APR_EGENERAL; goto out; |
| } |
| csr_der_64 = md_util_base64url_encode(csr_der, (apr_size_t)csr_der_len, p); |
| rv = APR_SUCCESS; |
| |
| out: |
| if (exts) { |
| sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free); |
| } |
| if (csr) { |
| X509_REQ_free(csr); |
| } |
| if (n) { |
| X509_NAME_free(n); |
| } |
| *pcsr_der_64 = (APR_SUCCESS == rv)? csr_der_64 : NULL; |
| return rv; |
| } |
| |
| apr_status_t md_cert_self_sign(md_cert_t **pcert, const char *cn, |
| apr_array_header_t *domains, md_pkey_t *pkey, |
| apr_interval_time_t valid_for, apr_pool_t *p) |
| { |
| X509 *x; |
| X509_NAME *n = NULL; |
| md_cert_t *cert = NULL; |
| apr_status_t rv; |
| int days; |
| BIGNUM *big_rnd = NULL; |
| ASN1_INTEGER *asn1_rnd = NULL; |
| unsigned char rnd[20]; |
| |
| assert(domains); |
| |
| if (NULL == (x = X509_new()) |
| || NULL == (n = X509_NAME_new())) { |
| rv = APR_ENOMEM; |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "%s: openssl alloc X509 things", cn); |
| goto out; |
| } |
| |
| if (APR_SUCCESS != (rv = md_rand_bytes(rnd, sizeof(rnd), p)) |
| || !(big_rnd = BN_bin2bn(rnd, sizeof(rnd), NULL)) |
| || !(asn1_rnd = BN_to_ASN1_INTEGER(big_rnd, NULL))) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "%s: setup random serial", cn); |
| rv = APR_EGENERAL; goto out; |
| } |
| |
| if (1 != X509_set_version(x, 2L)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "%s: setting x.509v3", cn); |
| rv = APR_EGENERAL; goto out; |
| } |
| |
| if (!X509_set_serialNumber(x, asn1_rnd)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "%s: set serial number", cn); |
| rv = APR_EGENERAL; goto out; |
| } |
| /* set common name and issue */ |
| if (!X509_NAME_add_entry_by_txt(n, "CN", MBSTRING_ASC, (const unsigned char*)cn, -1, -1, 0) |
| || !X509_set_subject_name(x, n) |
| || !X509_set_issuer_name(x, n)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, 0, p, "%s: name add entry", cn); |
| rv = APR_EGENERAL; goto out; |
| } |
| /* cert are unconstrained (but not very trustworthy) */ |
| if (APR_SUCCESS != (rv = add_ext(x, NID_basic_constraints, "CA:FALSE, pathlen:0", p))) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: set basic constraints ext", cn); |
| goto out; |
| } |
| /* add the domain as alt name */ |
| if (APR_SUCCESS != (rv = add_ext(x, NID_subject_alt_name, alt_names(domains, p), p))) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: set alt_name ext", cn); |
| goto out; |
| } |
| /* add our key */ |
| if (!X509_set_pubkey(x, pkey->pkey)) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: set pkey in x509", cn); |
| rv = APR_EGENERAL; goto out; |
| } |
| |
| days = (int)((apr_time_sec(valid_for) + MD_SECS_PER_DAY - 1)/ MD_SECS_PER_DAY); |
| if (!X509_set_notBefore(x, ASN1_TIME_set(NULL, time(NULL)))) { |
| rv = APR_EGENERAL; goto out; |
| } |
| if (!X509_set_notAfter(x, ASN1_TIME_adj(NULL, time(NULL), days, 0))) { |
| rv = APR_EGENERAL; goto out; |
| } |
| |
| /* sign with same key */ |
| if (!X509_sign(x, pkey->pkey, EVP_sha256())) { |
| md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: sign x509", cn); |
| rv = APR_EGENERAL; goto out; |
| } |
| |
| cert = make_cert(p, x); |
| rv = APR_SUCCESS; |
| |
| out: |
| if (!cert && x) { |
| X509_free(x); |
| } |
| if (n) { |
| X509_NAME_free(n); |
| } |
| if (big_rnd) { |
| BN_free(big_rnd); |
| } |
| if (asn1_rnd) { |
| ASN1_INTEGER_free(asn1_rnd); |
| } |
| *pcert = (APR_SUCCESS == rv)? cert : NULL; |
| return rv; |
| } |
| |
