webcit-ng openssl 1.1 compatibility

[citadel.git] / webcit-ng / ssl.c

diff --git a/webcit-ng/ssl.c b/webcit-ng/ssl.c
index 81764a2526653574781964116a7cc06afaf9fbfe..05d62de6ad8fefc7b2ba0d3111e019212c982dd3 100644 (file)
--- a/webcit-ng/ssl.c
+++ b/webcit-ng/ssl.c
@@ -46,6 +46,62 @@ void ssl_lock(int mode, int n, const char *file, int line)
 }
 
 
+/*
+ * Generate a private key for SSL
+ */
+void generate_key(char *keyfilename)
+{
+       int ret = 0;
+       RSA *rsa = NULL;
+       BIGNUM *bne = NULL;
+       int bits = 2048;
+       unsigned long e = RSA_F4;
+       FILE *fp;
+
+       if (access(keyfilename, R_OK) == 0) {
+               return;
+       }
+
+       syslog(LOG_INFO, "crypto: generating RSA key pair");
+ 
+       // generate rsa key
+       bne = BN_new();
+       ret = BN_set_word(bne,e);
+       if (ret != 1) {
+               goto free_all;
+       }
+ 
+       rsa = RSA_new();
+       ret = RSA_generate_key_ex(rsa, bits, bne, NULL);
+       if (ret != 1) {
+               goto free_all;
+       }
+
+       // write the key file
+       fp = fopen(keyfilename, "w");
+       if (fp != NULL) {
+               chmod(keyfilename, 0600);
+               if (PEM_write_RSAPrivateKey(fp, /* the file */
+                                       rsa,    /* the key */
+                                       NULL,   /* no enc */
+                                       NULL,   /* no passphr */
+                                       0,      /* no passphr */
+                                       NULL,   /* no callbk */
+                                       NULL    /* no callbk */
+               ) != 1) {
+                       syslog(LOG_ERR, "crypto: cannot write key: %s", ERR_reason_error_string(ERR_get_error()));
+                       unlink(keyfilename);
+               }
+               fclose(fp);
+       }
+
+    // 4. free
+free_all:
+    RSA_free(rsa);
+    BN_free(bne);
+}
+
+
 /*
  * Initialize ssl engine, load certs and initialize openssl internals
  */
@@ -62,15 +118,6 @@ void init_ssl(void)
        char buf[SIZ];
        int rv = 0;
 
-       if (!access("/var/run/egd-pool", F_OK)) {
-               RAND_egd("/var/run/egd-pool");
-       }
-
-       if (!RAND_status()) {
-               syslog(LOG_WARNING, "PRNG not adequately seeded, won't do SSL/TLS");
-               return;
-       }
-
        SSLCritters = malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t *));
        if (!SSLCritters) {
                syslog(LOG_ERR, "citserver: can't allocate memory!!");
@@ -117,40 +164,7 @@ void init_ssl(void)
        /*
         * If we still don't have a private key, generate one.
         */
-       if (access(CTDL_KEY_PATH, R_OK) != 0) {
-               syslog(LOG_INFO, "Generating RSA key pair.\n");
-               rsa = RSA_generate_key(2048,    /* modulus size */
-                                       65537,  /* exponent */
-                                       NULL,   /* no callback */
-                                       NULL    /* no callback */
-               );
-               if (rsa == NULL) {
-                       syslog(LOG_WARNING, "Key generation failed: %s", ERR_reason_error_string(ERR_get_error()));
-               }
-               if (rsa != NULL) {
-                       fp = fopen(CTDL_KEY_PATH, "w");
-                       if (fp != NULL) {
-                               chmod(CTDL_KEY_PATH, 0600);
-                               if (PEM_write_RSAPrivateKey(fp, /* the file */
-                                                       rsa,    /* the key */
-                                                       NULL,   /* no enc */
-                                                       NULL,   /* no passphr */
-                                                       0,      /* no passphr */
-                                                       NULL,   /* no callbk */
-                                                       NULL    /* no callbk */
-                               ) != 1) {
-                                       syslog(LOG_WARNING, "Cannot write key: %s", ERR_reason_error_string(ERR_get_error()));
-                                       unlink(CTDL_KEY_PATH);
-                               }
-                               fclose(fp);
-                       }
-                       else {
-                               syslog(LOG_WARNING, "Cannot write key: %s", CTDL_KEY_PATH);
-                               exit(1);
-                       }
-                       RSA_free(rsa);
-               }
-       }
+       generate_key(CTDL_KEY_PATH);
 
        /*
         * If there is no certificate file on disk, we will be generating a self-signed certificate
@@ -267,8 +281,8 @@ void init_ssl(void)
                                if (cer = X509_new(), cer != NULL) {
 
                                        ASN1_INTEGER_set(X509_get_serialNumber(cer), 0);
-                                       X509_set_issuer_name(cer, req->req_info->subject);
-                                       X509_set_subject_name(cer, req->req_info->subject);
+                                       X509_set_issuer_name(cer, X509_REQ_get_subject_name(req));
+                                       X509_set_subject_name(cer, X509_REQ_get_subject_name(req));
                                        X509_gmtime_adj(X509_get_notBefore(cer), 0);
                                        X509_gmtime_adj(X509_get_notAfter(cer),(long)60*60*24*SIGN_DAYS);
 
@@ -368,7 +382,6 @@ void starttls(struct client_handle *ch) {
        else {
                syslog(LOG_INFO, "SSL_accept success");
        }
-       BIO_set_close(ch->ssl_handle->rbio, BIO_NOCLOSE);
        bits = SSL_CIPHER_get_bits(SSL_get_current_cipher(ch->ssl_handle), &alg_bits);
        syslog(LOG_INFO, "SSL/TLS using %s on %s (%d of %d bits)",
                SSL_CIPHER_get_name(SSL_get_current_cipher(ch->ssl_handle)),