--- /dev/null
+/*
+ * Copyright (C) 2010 Martin Willi
+ * Copyright (C) 2010 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <getopt.h>
+
+#include <library.h>
+#include <debug.h>
+#include <tls_socket.h>
+#include <utils/host.h>
+#include <credentials/sets/mem_cred.h>
+
+/**
+ * Print usage information
+ */
+static void usage(FILE *out, char *cmd)
+{
+ fprintf(out, "usage:\n");
+ fprintf(out, " %s --connect <address> --port <port> [--cert <file>]+\n", cmd);
+ fprintf(out, " %s --listen <address> --port <port> --key <key> [--cert <file>]+ --oneshot\n", cmd);
+}
+
+/**
+ * Stream between stdio and TLS socket
+ */
+static int stream(int fd, tls_socket_t *tls)
+{
+ while (TRUE)
+ {
+ fd_set set;
+ chunk_t data;
+
+ FD_ZERO(&set);
+ FD_SET(fd, &set);
+ FD_SET(0, &set);
+
+ if (select(fd + 1, &set, NULL, NULL, NULL) == -1)
+ {
+ return 1;
+ }
+ if (FD_ISSET(fd, &set))
+ {
+ if (!tls->read(tls, &data))
+ {
+ fprintf(stderr, "TLS read error\n");
+ return 1;
+ }
+ if (data.len)
+ {
+ ignore_result(write(0, data.ptr, data.len));
+ free(data.ptr);
+ }
+ }
+ if (FD_ISSET(0, &set))
+ {
+ char buf[1024];
+ ssize_t len;
+
+ len = read(0, buf, sizeof(buf));
+ if (len == 0)
+ {
+ return 0;
+ }
+ if (len > 0)
+ {
+ if (!tls->write(tls, chunk_create(buf, len)))
+ {
+ fprintf(stderr, "TLS write error\n");
+ return 1;
+ }
+ }
+ }
+ }
+}
+
+/**
+ * Client routine
+ */
+static int client(int fd, host_t *host, identification_t *server)
+{
+ tls_socket_t *tls;
+ int res;
+
+ if (connect(fd, host->get_sockaddr(host),
+ *host->get_sockaddr_len(host)) == -1)
+ {
+ fprintf(stderr, "connecting to %#H failed: %m\n", host);
+ return 1;
+ }
+ tls = tls_socket_create(FALSE, server, NULL, fd);
+ if (!tls)
+ {
+ return 1;
+ }
+ res = stream(fd, tls);
+ tls->destroy(tls);
+ return res;
+}
+
+/**
+ * Server routine
+ */
+static int serve(int fd, host_t *host, identification_t *server, bool oneshot)
+{
+ tls_socket_t *tls;
+ int cfd;
+
+ if (bind(fd, host->get_sockaddr(host),
+ *host->get_sockaddr_len(host)) == -1)
+ {
+ fprintf(stderr, "binding to %#H failed: %m\n", host);
+ return 1;
+ }
+ if (listen(fd, 1) == -1)
+ {
+ fprintf(stderr, "listen to %#H failed: %m\n", host);
+ return 1;
+ }
+
+ do
+ {
+ cfd = accept(fd, host->get_sockaddr(host), host->get_sockaddr_len(host));
+ if (cfd == -1)
+ {
+ fprintf(stderr, "accept failed: %m\n");
+ return 1;
+ }
+ fprintf(stderr, "%#H connected\n", host);
+
+ tls = tls_socket_create(TRUE, server, NULL, cfd);
+ if (!tls)
+ {
+ return 1;
+ }
+ stream(cfd, tls);
+ fprintf(stderr, "%#H disconnected\n", host);
+ tls->destroy(tls);
+ }
+ while (!oneshot);
+
+ return 0;
+}
+
+/**
+ * In-Memory credential set
+ */
+static mem_cred_t *creds;
+
+/**
+ * Load certificate from file
+ */
+static bool load_certificate(char *filename)
+{
+ certificate_t *cert;
+
+ cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, CERT_X509,
+ BUILD_FROM_FILE, filename, BUILD_END);
+ if (!cert)
+ {
+ fprintf(stderr, "loading certificate from '%s' failed\n", filename);
+ return FALSE;
+ }
+ creds->add_cert(creds, TRUE, cert);
+ return TRUE;
+}
+
+/**
+ * Load private key from file
+ */
+static bool load_key(char *filename)
+{
+ private_key_t *key;
+
+ key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
+ BUILD_FROM_FILE, filename, BUILD_END);
+ if (!key)
+ {
+ fprintf(stderr, "loading key from '%s' failed\n", filename);
+ return FALSE;
+ }
+ creds->add_key(creds, key);
+ return TRUE;
+}
+
+/**
+ * Cleanup
+ */
+static void cleanup()
+{
+ lib->credmgr->remove_set(lib->credmgr, &creds->set);
+ creds->destroy(creds);
+ library_deinit();
+}
+
+/**
+ * Initialize library
+ */
+static void init()
+{
+ library_init(NULL);
+ lib->plugins->load(lib->plugins, NULL, PLUGINS);
+
+ creds = mem_cred_create();
+ lib->credmgr->add_set(lib->credmgr, &creds->set);
+
+ atexit(cleanup);
+}
+
+int main(int argc, char *argv[])
+{
+ char *address = NULL;
+ bool listen = FALSE, oneshot = FALSE;
+ int port = 0, fd, res;
+ identification_t *server;
+ host_t *host;
+
+ init();
+
+ while (TRUE)
+ {
+ struct option long_opts[] = {
+ {"help", no_argument, NULL, 'h' },
+ {"connect", required_argument, NULL, 'c' },
+ {"listen", required_argument, NULL, 'l' },
+ {"port", required_argument, NULL, 'p' },
+ {"cert", required_argument, NULL, 'x' },
+ {"key", required_argument, NULL, 'k' },
+ {"oneshot", no_argument, NULL, 'o' },
+ {0,0,0,0 }
+ };
+ switch (getopt_long(argc, argv, "", long_opts, NULL))
+ {
+ case EOF:
+ break;
+ case 'h':
+ usage(stdout, argv[0]);
+ return 0;
+ case 'x':
+ if (!load_certificate(optarg))
+ {
+ return 1;
+ }
+ continue;
+ case 'k':
+ if (!load_key(optarg))
+ {
+ return 1;
+ }
+ continue;
+ case 'l':
+ listen = TRUE;
+ /* fall */
+ case 'c':
+ if (address)
+ {
+ usage(stderr, argv[0]);
+ return 1;
+ }
+ address = optarg;
+ continue;
+ case 'p':
+ port = atoi(optarg);
+ continue;
+ case 'o':
+ oneshot = TRUE;
+ continue;
+ default:
+ usage(stderr, argv[0]);
+ return 1;
+ }
+ break;
+ }
+ if (!port || !address)
+ {
+ usage(stderr, argv[0]);
+ return 1;
+ }
+ if (oneshot && !listen)
+ {
+ usage(stderr, argv[0]);
+ return 1;
+ }
+
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+ if (fd == -1)
+ {
+ fprintf(stderr, "opening socket failed: %m\n");
+ return 1;
+ }
+ host = host_create_from_dns(address, 0, port);
+ if (!host)
+ {
+ fprintf(stderr, "resolving hostname %s failed\n", address);
+ close(fd);
+ return 1;
+ }
+ server = identification_create_from_string(address);
+ if (listen)
+ {
+ res = serve(fd, host, server, oneshot);
+ }
+ else
+ {
+ res = client(fd, host, server);
+ }
+ close(fd);
+ host->destroy(host);
+ server->destroy(server);
+ return res;
+}
+
projects / people / ms / strongswan.git / commitdiff
