#include <gnutls/gnutls.h>
#include <netinet/in.h>
#include <arpa/inet.h>
+#include <signal.h>
#include "log.h"
-#include "nethook.h"
-#include "null.h"
#include "pop.h"
#include "hcconn.h"
+#include "hcconn_ssl.h"
#include "tcp_connect.h"
+#include "usermap.h"
+
#define CONFFILE SYSCONFDIR "/popproxy.conf"
struct pop_address
{
char *server;
char *port;
+ int ssl;
};
-void new_client (int fd, struct sockaddr* addr, socklen_t saddr, gpointer data)
+static HCConn *
+server_conn_new (char *server, char *port, int ssl)
{
+ int fd;
HCConn *conn;
- net_hook_t* hook;
+ HCConn *ssl_conn;
+ int r;
+ fd = hc_tcp_connect (server, port);
+ if (fd < 0)
+ {
+ g_warning ("Could not connect to server at %s:%s.", server, port);
+ return NULL;
+ }
+ conn = hc_conn_new (NULL, NULL);
+ r = hc_conn_set_driver_channel (conn, fd);
+ if (r != 0)
+ {
+ hc_conn_close (conn);
+ close (fd);
+ return NULL;
+ }
+ if (!ssl)
+ return conn;
+ ssl_conn = hc_conn_new (NULL, NULL);
+ r = hc_conn_set_driver_ssl_client (ssl_conn, conn);
+ if (r != 0)
+ {
+ hc_conn_close (ssl_conn);
+ hc_conn_close (conn);
+ return NULL;
+ }
+ return ssl_conn;
+}
+
+static HCConn *
+client_conn_new (int fd)
+{
+ HCConn *conn;
+ HCConn *ssl_conn;
+ HCConn *pop_conn;
+ int r;
+ conn = hc_conn_new (NULL, NULL);
+ r = hc_conn_set_driver_channel (conn, fd);
+ if (r != 0)
+ {
+ hc_conn_close (conn);
+ close (fd);
+ return NULL;
+ }
+ ssl_conn = hc_conn_new (NULL, NULL);
+ hc_conn_set_driver_ssl_server (ssl_conn, conn);
+ if (r != 0)
+ {
+ hc_conn_close (ssl_conn);
+ hc_conn_close (conn);
+ return NULL;
+ }
+ pop_conn = hc_conn_new (NULL, NULL);
+ r = hc_conn_set_driver_pop (pop_conn, ssl_conn);
+ if (r != 0)
+ {
+ hc_conn_close (pop_conn);
+ hc_conn_close (ssl_conn);
+ return NULL;
+ }
+ return pop_conn;
+}
+
+static void
+push_other (HCConn *conn, HCEvent event, gpointer data)
+{
+ char buffer[4096];
+ int r;
+ switch (event)
+ {
+ case HC_EVENT_READ:
+ while ((r = hc_conn_read (conn, buffer, sizeof (buffer))) > 0)
+ hc_conn_write (data, buffer, r);
+ break;
+ case HC_EVENT_CLOSE:
+ hc_conn_close (conn);
+ hc_conn_close (data);
+ break;
+ }
+}
+
+static void
+ssl_connected (HCConn *client_conn, HCEvent event, gpointer data)
+{
+ struct pop_address *address = data;
+ HCConn *server_conn;
+ if (event != HC_EVENT_CONNECT)
+ {
+ g_debug ("Did not get connect event when trying to handshake:"
+ " got %d", event);
+ hc_conn_close (client_conn);
+ return;
+ }
+ server_conn = server_conn_new (address->server, address->port,
+ address->ssl);
+ if (server_conn == NULL)
+ {
+ g_debug ("Failure to create connection to server.");
+ hc_conn_close (client_conn);
+ return;
+ }
+ hc_conn_set_callback (client_conn, push_other, server_conn);
+ hc_conn_set_callback (server_conn, push_other, client_conn);
+}
+
+static void
+new_client (int fd, struct sockaddr *addr, socklen_t saddr, gpointer data)
+{
+ HCConn *client_conn;
struct pop_address *address = data;
if (fd < 0)
{
g_critical ("Server has received an error event.");
return;
}
+
+ /* FIXME: Should be independent of address type. */
g_message ("Received connection from %s.",
inet_ntoa (((struct sockaddr_in *) addr)->sin_addr));
- conn = hc_conn_new (NULL, NULL);
- hc_conn_set_driver_channel (conn, fd);
- hook = null_hook_new (conn, address->server);
- pop_hook_new (hook);
+
+ client_conn = client_conn_new (fd);
+ if (client_conn == NULL)
+ {
+ return;
+ }
+
+ if (address->ssl)
+ hc_conn_set_callback (client_conn, ssl_connected, address);
+ else
+ ssl_connected (client_conn, HC_EVENT_CONNECT, address);
+
}
-static gchar* configfile;
+static gchar *configfile;
+static gboolean foreground;
static GOptionEntry opt_entries[] =
{
{ "config-file", 'c', 0, G_OPTION_ARG_FILENAME, &configfile,
"Configuration file location", "file" },
+ { "foreground", 'f', 0, G_OPTION_ARG_NONE, &foreground,
+ "Run in foreground", 0 },
{ NULL }
};
-int main (int argc, char** argv)
+int main (int argc, char **argv)
{
- GOptionContext* opt_ctx;
+ GOptionContext *opt_ctx;
GKeyFile *keyfile;
GError *error;
int server_fd;
- gchar* conf_address;
- gchar* port;
+ gchar *conf_address;
+ gchar *port;
gchar *server_address;
gchar *server_port;
+ int server_ssl;
+ gchar *certfile;
+ gchar *ssl_keyfile;
+ gchar *policy;
struct pop_address pop_address;
+ signal (SIGPIPE, SIG_IGN);
+
gnutls_global_init ();
- pop_log_init ();
configfile = CONFFILE;
opt_ctx = g_option_context_new ("");
g_option_context_add_main_entries (opt_ctx, opt_entries, NULL);
- if (!g_option_context_parse (opt_ctx, &argc, &argv, NULL))
+
+ error = NULL;
+ if (!g_option_context_parse (opt_ctx, &argc, &argv, &error))
{
- g_log (NULL, G_LOG_LEVEL_WARNING | G_LOG_FLAG_FATAL,
- "Could not parse command line options.");
+ g_critical ("Could not parse command line options: %s.",
+ error->message);
+ g_error_free (error);
+ exit (1);
}
g_option_context_free (opt_ctx);
- keyfile = g_key_file_new ();
+ keyfile = g_key_file_new ();
error = NULL;
if (g_key_file_load_from_file (keyfile, configfile,
G_KEY_FILE_NONE, &error) == FALSE)
{
- fprintf (stderr, "Could not load configuration file %s: %s.\n",
- configfile, error->message);
+ g_critical ("Could not load configuration file %s: %s.",
+ configfile, error->message);
g_error_free (error);
exit (1);
}
+ error = NULL;
+ certfile = g_key_file_get_string (keyfile, "global", "certfile",
+ &error);
+ if (certfile == NULL && error != NULL)
+ {
+ g_critical ("No certification file specified: %s.",
+ error->message);
+ g_error_free (error);
+ exit (1);
+ }
+ error = NULL;
+ ssl_keyfile = g_key_file_get_string (keyfile, "global", "keyfile",
+ &error);
+ if (ssl_keyfile == NULL && error != NULL)
+ {
+ ssl_keyfile = g_strdup (certfile);
+ g_error_free (error);
+ }
+
+
error = NULL;
conf_address = g_key_file_get_string (keyfile, "global", "address",
&error);
server_address = g_strdup ("127.0.0.1");
g_error_free (error);
}
-
+ error = NULL;
server_port = g_key_file_get_string (keyfile, "global", "server_port",
&error);
if (server_port == NULL && error != NULL)
server_port = g_strdup ("995");
g_error_free (error);
}
+ error = NULL;
+ server_ssl = g_key_file_get_boolean (keyfile, "global", "server_ssl",
+ &error);
+ if (server_ssl == 0 && error != NULL)
+ {
+ server_ssl = 0;
+ g_error_free (error);
+ }
+
+ error = NULL;
+ policy = g_key_file_get_string (keyfile, "global", "policy",
+ &error);
+ if (policy == NULL && error != NULL)
+ {
+ policy = g_strdup ("deny");
+ g_error_free (error);
+ }
+
+ if (!strcmp (policy, "allow"))
+ ACCESS_DEFAULT = ACCESS_ALLOW;
+ g_free (policy);
+
pop_address.server = server_address;
pop_address.port = server_port;
+ pop_address.ssl = server_ssl;
server_fd = hc_tcp_server (port);
if (server_fd < 0)
{
- fprintf (stderr, "Could not create server.\n");
+ g_critical ("Could not create server.");
exit (1);
}
hc_server_add_watch (server_fd, new_client, &pop_address);
+ pop_log_init ();
+
g_message ("Listening at %s:%s.", conf_address, port);
+ if (ACCESS_DEFAULT == ACCESS_ALLOW)
+ g_message ("Authorizing users by default.");
- daemon (0, 0);
+ if (!foreground)
+ daemon (0, 0);
g_free (conf_address);
g_free (port);
+ hc_conn_ssl_server_init_credentials (certfile, ssl_keyfile);
+
+ g_free (certfile);
+ g_free (ssl_keyfile);
+
g_main_loop_run (g_main_loop_new (g_main_context_default (), TRUE));
gnutls_global_deinit ();
projects / cascardo / rnetproxy.git / blobdiff