enh: Add server authentication API functions (#911)

src/iperf_api.c

@@ -563,6 +563,18 @@ iperf_set_test_client_rsa_pubkey(struct iperf_test *ipt, char *client_rsa_pubkey
 {
     ipt->settings->client_rsa_pubkey = load_pubkey_from_base64(client_rsa_pubkey_base64);
 }
+
+void
+iperf_set_test_server_authorized_users(struct iperf_test *ipt, char *server_authorized_users)
+{
+    ipt->server_authorized_users = server_authorized_users;
+}
+
+void
+iperf_set_test_server_rsa_privkey(struct iperf_test *ipt, char *server_rsa_privkey_base64)
+{
+    ipt->server_rsa_private_key = load_privkey_from_base64(server_rsa_privkey_base64);
+}
 #endif // HAVE_SSL
 
 void

src/iperf_api.h

@@ -168,6 +168,8 @@ void    iperf_set_test_no_delay( struct iperf_test* ipt, int no_delay);
 void    iperf_set_test_client_username(struct iperf_test *ipt, char *client_username);
 void    iperf_set_test_client_password(struct iperf_test *ipt, char *client_password);
 void    iperf_set_test_client_rsa_pubkey(struct iperf_test *ipt, char *client_rsa_pubkey_base64);
+void    iperf_set_test_server_authorized_users(struct iperf_test *ipt, char *server_authorized_users);
+void    iperf_set_test_server_rsa_privkey(struct iperf_test *ipt, char *server_rsa_privkey_base64);
 #endif // HAVE_SSL
 
 /**

src/iperf_auth.c

@@ -151,7 +151,6 @@ int Base64Decode(const char* b64message, unsigned char** buffer, size_t* length)
     return (0); //success
 }
 
-
 EVP_PKEY *load_pubkey_from_file(const char *file) {
     BIO *key = NULL;
     EVP_PKEY *pkey = NULL;
@@ -159,7 +158,7 @@ EVP_PKEY *load_pubkey_from_file(const char *file) {
     if (file) {
       key = BIO_new_file(file, "r");
       pkey = PEM_read_bio_PUBKEY(key, NULL, NULL, NULL);
-
+ 
       BIO_free(key);
     }
     return (pkey);
@@ -189,6 +188,16 @@ EVP_PKEY *load_privkey_from_file(const char *file) {
     return (pkey);
 }
 
+EVP_PKEY *load_privkey_from_base64(const char *buffer) {
+    unsigned char *key = NULL;
+    size_t key_len;
+    Base64Decode(buffer, &key, &key_len);
+
+    BIO* bio = BIO_new(BIO_s_mem());
+    BIO_write(bio, key, key_len);
+    EVP_PKEY *pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL);
+    return (pkey);
+}
 
 int test_load_pubkey_from_file(const char *file){
     EVP_PKEY *key = load_pubkey_from_file(file);

src/iperf_auth.h

@@ -34,6 +34,7 @@ int test_load_private_key_from_file(const char *private_keyfile);
 EVP_PKEY *load_pubkey_from_file(const char *file);
 EVP_PKEY *load_pubkey_from_base64(const char *buffer);
 EVP_PKEY *load_privkey_from_file(const char *file);
+EVP_PKEY *load_privkey_from_base64(const char *buffer);
 int encode_auth_setting(const char *username, const char *password, EVP_PKEY *public_key, char **authtoken);
 int decode_auth_setting(int enable_debug, const char *authtoken, EVP_PKEY *private_key, char **username, char **password, time_t *ts);
 int check_authentication(const char *username, const char *password, const time_t ts, const char *filename);