Several updates to handle URLs requested by the cisco client.

doc/Makefile.am

@@ -4,5 +4,5 @@ dist_man_MANS = ocserv.1
 
 ocserv.1: ../src/ocserv-args.def
 	-sed 's/@subheading \(.*\)/@*\n@var{\1}\n@*/' $< > "$<".tmp && \
-	-@AUTOGEN@ -DMAN_SECTION=1 -Tagman-cmd.tpl "$<".tmp && \
+	@AUTOGEN@ -DMAN_SECTION=1 -Tagman-cmd.tpl "$<".tmp && \
 	rm -f "$<".tmp

doc/profile.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<AnyConnectProfile xmlns="http://schemas.xmlsoap.org/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://schemas.xmlsoap.org/encoding/ AnyConnectProfile.xsd">
+
+	<ClientInitialization>
+		<UseStartBeforeLogon UserControllable="false">false</UseStartBeforeLogon>
+		<StrictCertificateTrust>false</StrictCertificateTrust>
+		<RestrictPreferenceCaching>false</RestrictPreferenceCaching>
+		<RestrictTunnelProtocols>IPSec</RestrictTunnelProtocols>
+		<BypassDownloader>true</BypassDownloader>
+		<CertEnrollmentPin>pinAllowed</CertEnrollmentPin>
+		<CertificateMatch>
+			<KeyUsage>
+				<MatchKey>Digital_Signature</MatchKey>
+			</KeyUsage>
+			<ExtendedKeyUsage>
+				<ExtendedMatchKey>ClientAuth</ExtendedMatchKey>
+			</ExtendedKeyUsage>
+		</CertificateMatch>
+
+		<BackupServerList>
+	            <HostAddress>10.100.2.17</HostAddress>
+		</BackupServerList>
+	</ClientInitialization>
+
+	<ServerList>
+		<HostEntry>
+	            <HostName>VPN Server</HostName>
+	            <HostAddress>10.100.2.17</HostAddress>
+		</HostEntry>
+	</ServerList>
+</AnyConnectProfile>

doc/sample.config

@@ -4,6 +4,14 @@
 #auth = "certificate"
 auth = "pam"
 
+# A banner to be displayed on clients
+#banner = "Welcome"
+
+# Client config xml. The variable $GROUP will be replaced by
+# the user's group name. This file must be accessible from inside
+# the worker's chroot. It is not used by the openconnect client.
+user-profile = ../doc/profile.xml
+
 # Use listen-host to limit to specific IPs or to the IPs of a provided hostname.
 #listen-host = [IP|HOSTNAME]
 
@@ -16,8 +24,8 @@ max-clients = 16
 max-same-clients = 2
 
 # TCP and UDP port number
-tcp-port = 3333
+tcp-port = 443
-udp-port = 3333
+udp-port = 443
 
 # Keepalive in seconds
 keepalive = 32400

src/Makefile.am

@@ -28,4 +28,4 @@ ocserv_LDADD += $(LIBGNUTLS_LIBS) $(GDBM_LIBS) $(PAM_LIBS) $(LIBUTIL) \
 	$(LIBSECCOMP) $(LIBWRAP)
 
 ocserv-args.c ocserv-args.h: $(srcdir)/ocserv-args.def
-	-@AUTOGEN@ $<
+	@AUTOGEN@ $<

src/config.c

@@ -30,6 +30,7 @@
 #include <autoopts/options.h>
 
 #include <vpn.h>
+#include <tlslib.h>
 
 #define DEFAULT_CFG_FILE "/etc/ocserv.conf"
 
@@ -146,6 +147,7 @@ unsigned j;
 	READ_STRING("server-key", config->key, 1);
 	READ_STRING("pin-file", config->pin_file, 0);
 	READ_STRING("srk-pin-file", config->srk_pin_file, 0);
+	READ_STRING("user-profile", config->xml_config_file, 0);
 
 	READ_STRING("ca-cert", config->ca, 0);
 	READ_STRING("crl", config->crl, 0);
@@ -208,6 +210,7 @@ unsigned j;
 	READ_MULTI_LINE("route", config->network.routes, config->network.routes_size, 0);
 }
 
+
 /* sanity checks on config */
 static void check_cfg( struct cfg_st *config)
 {
@@ -230,6 +233,14 @@ static void check_cfg( struct cfg_st *config)
 		fprintf(stderr, "Banner size is too long\n");
 		exit(1);
 	}
+
+	if (config->cert) {
+		config->cert_hash = calc_sha1_hash(config->cert, 1);
+	}
+
+	if (config->xml_config_file) {
+		config->xml_config_hash = calc_sha1_hash(config->xml_config_file, 0);
+	}
 	
 	if (config->keepalive == 0)
 		config->keepalive = 3600;
@@ -280,6 +291,9 @@ void reload_cfg_file(struct cfg_st* config)
 {
 unsigned i;
 
+	DEL(config->xml_config_file);
+	DEL(config->xml_config_hash);
+	DEL(config->cert_hash);
 	DEL(config->banner);
 	DEL(config->name);
 	DEL(config->cert);

src/main.c

@@ -485,7 +485,7 @@ static void check_other_work(main_server_st *s)
 	if (reload_conf != 0) {
 		mslog(s, NULL, LOG_INFO, "HUP signal was received; reloading configuration");
 		reload_cfg_file(s->config);
-		tls_global_reinit(s);
+		tls_global_init_certs(s);
 		reload_conf = 0;
 	}
 
@@ -559,6 +559,9 @@ int main(int argc, char** argv)
 	signal(SIGCHLD, handle_children);
 	signal(SIGALRM, handle_alarm);
 
+	/* Initialize GnuTLS */
+	tls_global_init(&s);
+
 	/* load configuration */
 	ret = cmd_parser(argc, argv, &config);
 	if (ret < 0) {
@@ -601,11 +604,10 @@ int main(int argc, char** argv)
 	allow_severity = LOG_DAEMON|LOG_INFO;
 	deny_severity = LOG_DAEMON|LOG_WARNING;
 #endif	
+	memset(&ws, 0, sizeof(ws));
 
 	/* Initialize GnuTLS */
-	tls_global_init(&s);
+	tls_global_init_certs(&s);
-
-	memset(&ws, 0, sizeof(ws));
 	
 	if (config.foreground == 0) {
 		if (daemon(0, 0) == -1) {

src/ocserv-args.c

@@ -2,7 +2,7 @@
  *  
  *  DO NOT EDIT THIS FILE   (ocserv-args.c)
  *  
- *  It has been AutoGen-ed  February 27, 2013 at 07:03:11 PM by AutoGen 5.16
+ *  It has been AutoGen-ed  March  1, 2013 at 07:46:59 PM by AutoGen 5.16
  *  From the definitions    ocserv-args.def
  *  and the template file   options
  *
@@ -66,7 +66,7 @@ extern FILE * option_usage_fp;
  *  ocserv option static const strings
  */
 static char const ocserv_opt_strs[1840] =
-/*     0 */ "ocserv 0.0.1\n"
+/*     0 */ "ocserv 0.0.2\n"
             "Copyright (C) 2013 Nikos Mavrogiannopoulos, all rights reserved.\n"
             "This is free software. It is licensed for use, modification and\n"
             "redistribution under the terms of the\n"
@@ -99,7 +99,7 @@ static char const ocserv_opt_strs[1840] =
 /*  1129 */ "Output version information and exit\0"
 /*  1165 */ "version\0"
 /*  1173 */ "OCSERV\0"
-/*  1180 */ "ocserv - OpenConnect server - Ver. 0.0.1\n"
+/*  1180 */ "ocserv - OpenConnect server - Ver. 0.0.2\n"
             "USAGE:  %s [ -<flag> [<val>] | --<name>[{=| }<val>] ]...\n\0"
 /*  1279 */ "openconnect-devel@lists.infradead.org\0"
 /*  1317 */ "\n\n\0"
@@ -111,7 +111,7 @@ static char const ocserv_opt_strs[1840] =
             "authentication.  Authenticated users are assigned an unprivileged worker\n"
             "process and obtain a networking (tun) device and IP from a configurable\n"
             "pool of addresses.\n\0"
-/*  1752 */ "ocserv 0.0.1\0"
+/*  1752 */ "ocserv 0.0.2\0"
 /*  1765 */ "Usage: ocserv [options] -c [config]\n"
             "ocserv --help for usage instructions.\n";
 

src/ocserv-args.def

@@ -82,6 +82,11 @@ auth = "pam"
 # A banner to be displayed on clients
 #banner = "Welcome"
 
+# Client profile xml. A sample file exists in doc/profile.xml.
+# This file must be accessible from inside the worker's chroot. 
+# It is not used by the openconnect client.
+#user-profile = /path/to/file.xml
+
 # Use listen-host to limit to specific IPs or to the IPs of a provided hostname.
 #listen-host = [IP|HOSTNAME]
 

src/ocserv-args.h

@@ -2,7 +2,7 @@
  *  
  *  DO NOT EDIT THIS FILE   (ocserv-args.h)
  *  
- *  It has been AutoGen-ed  February 27, 2013 at 07:03:10 PM by AutoGen 5.16
+ *  It has been AutoGen-ed  March  1, 2013 at 07:46:59 PM by AutoGen 5.16
  *  From the definitions    ocserv-args.def
  *  and the template file   options
  *
@@ -76,8 +76,8 @@ typedef enum {
 } teOptIndex;
 
 #define OPTION_CT    7
-#define OCSERV_VERSION       "0.0.1"
+#define OCSERV_VERSION       "0.0.2"
-#define OCSERV_FULL_VERSION  "ocserv 0.0.1"
+#define OCSERV_FULL_VERSION  "ocserv 0.0.2"
 
 /*
  *  Interface defines for all options.  Replace "n" with the UPPER_CASED

src/tlslib.c

@@ -19,6 +19,7 @@
 #include <config.h>
 
 #include <gnutls/gnutls.h>
+#include <gnutls/crypto.h>
 #include <gnutls/pkcs11.h>
 #include <errno.h>
 #include <stdlib.h>
@@ -333,25 +334,24 @@ void tls_global_init(main_server_st* s)
 int ret;
 
 	gnutls_global_set_audit_log_function(tls_audit_log_func);
-	if (s->config->tls_debug) {
-		gnutls_global_set_log_function(tls_log_func);
-		gnutls_global_set_log_level(9);
-	}
 
 	ret = gnutls_global_init();
 	GNUTLS_FATAL_ERR(ret);
 	
-	tls_global_reinit(s);
-
 	return;
 }
 
 /* reload key files etc. */
-void tls_global_reinit(main_server_st* s)
+void tls_global_init_certs(main_server_st* s)
 {
 int ret;
 const char* perr;
 
+	if (s->config->tls_debug) {
+		gnutls_global_set_log_function(tls_log_func);
+		gnutls_global_set_log_level(9);
+	}
+
 	if (s->creds.xcred != NULL)
 		gnutls_certificate_free_credentials(s->creds.xcred);
 
@@ -468,3 +468,60 @@ int tls_uncork(gnutls_session_t session)
 	return 0;
 #endif
 }
+
+void *calc_sha1_hash(char* file, unsigned cert)
+{
+int ret;
+gnutls_datum_t data;
+uint8_t digest[20];
+char * retval;
+gnutls_x509_crt_t crt;
+
+	ret = gnutls_load_file(file, &data);
+	if (ret < 0) {
+		fprintf(stderr, "Cannot open file '%s': %s\n", file, gnutls_strerror(ret));
+		exit(1);
+	}
+	
+	if (cert != 0) {
+		ret = gnutls_x509_crt_init(&crt);
+		GNUTLS_FATAL_ERR(ret);
+
+		ret = gnutls_x509_crt_import(crt, &data, GNUTLS_X509_FMT_PEM);
+		if (ret == GNUTLS_E_BASE64_DECODING_ERROR)
+	  		ret = gnutls_x509_crt_import(crt, &data, GNUTLS_X509_FMT_DER);
+		GNUTLS_FATAL_ERR(ret);
+
+		gnutls_free(data.data);
+	
+		ret = gnutls_x509_crt_export2(crt, GNUTLS_X509_FMT_DER, &data);
+		GNUTLS_FATAL_ERR(ret);
+		gnutls_x509_crt_deinit(crt);
+	}
+	
+	ret = gnutls_hash_fast(GNUTLS_DIG_SHA1, data.data, data.size, digest);
+	gnutls_free(data.data);
+
+	if (ret < 0) {
+		fprintf(stderr, "Error calculating hash of '%s': %s\n", file, gnutls_strerror(ret));
+		exit(1);
+	}
+	
+	size_t ret_size = sizeof(digest)*2+1;
+	retval = malloc(ret_size);
+	if (retval == NULL) {
+		fprintf(stderr, "Memory error\n");
+		exit(1);
+	}
+	
+	data.data = digest;
+	data.size = sizeof(digest);
+	ret = gnutls_hex_encode(&data, retval, &ret_size);
+	if (ret < 0) {
+		fprintf(stderr, "Error in hex encode: %s\n", gnutls_strerror(ret));
+		exit(1);
+	}
+	retval[ret_size] = 0;
+	
+	return retval;
+}

src/tlslib.h

@@ -20,19 +20,32 @@ int tls_uncork(gnutls_session_t session);
 
 void tls_global_init(struct main_server_st* s);
 int tls_global_init_client(struct worker_st* ws);
-void tls_global_reinit(struct main_server_st* s);
+void tls_global_init_certs(struct main_server_st* s);
 
 ssize_t tls_send_file(gnutls_session_t session, const char *file);
 
 #define GNUTLS_FATAL_ERR(x) \
         if (x < 0 && gnutls_error_is_fatal (x) != 0) { \
                 if (syslog_open) \
-        		syslog(LOG_ERR, "GnuTLS error (at %s:%d): %s", __FILE__, __LINE__, gnutls_strerror(x)); \
+       			syslog(LOG_ERR, "GnuTLS error (at %s:%d): %s", __FILE__, __LINE__, gnutls_strerror(x)); \
                 else \
                         fprintf(stderr, "GnuTLS error (at %s:%d): %s\n", __FILE__, __LINE__, gnutls_strerror(x)); \
                 exit(1); \
         }
 
+#define GNUTLS_S_FATAL_ERR(session, x) \
+        if (x < 0 && gnutls_error_is_fatal (x) != 0) { \
+                if (syslog_open) { \
+	        	if (ret == GNUTLS_E_FATAL_ALERT_RECEIVED) { \
+	        		syslog(LOG_ERR, "GnuTLS error (at %s:%d): %s: %s", __FILE__, __LINE__, gnutls_strerror(x), gnutls_alert_get_name(gnutls_alert_get(session))); \
+        		} else { \
+        			syslog(LOG_ERR, "GnuTLS error (at %s:%d): %s", __FILE__, __LINE__, gnutls_strerror(x)); \
+			} \
+                } else \
+                        fprintf(stderr, "GnuTLS error (at %s:%d): %s\n", __FILE__, __LINE__, gnutls_strerror(x)); \
+                exit(1); \
+        }
+
 void tls_close(gnutls_session_t session);
 
 void tls_fatal_close(gnutls_session_t session,
@@ -66,5 +79,6 @@ typedef struct
 
 void tls_cache_init(hash_db_st** db);
 void tls_cache_deinit(hash_db_st* db);
+void *calc_sha1_hash(char* file, unsigned cert);
 
 #endif

src/vpn.h

@@ -60,6 +60,8 @@ struct cfg_st {
 	char *pin_file;
 	char *srk_pin_file;
 	char *cert;
+	char *cert_hash;
+
 	char *key;
 	char *ca;
 	char *crl;
@@ -88,6 +90,9 @@ struct cfg_st {
 	char *connect_script;
 	char *disconnect_script;
 
+	char *xml_config_file;
+	char *xml_config_hash;
+
 	uid_t uid;
 	gid_t gid;
 

src/worker-auth.c

@@ -341,19 +341,84 @@ struct cmd_auth_cookie_req_st areq;
 	return recv_auth_reply(ws);
 }
 
+int post_common_handler(worker_st *ws, unsigned http_ver)
+{
+int ret, size;
+char str_cookie[2*COOKIE_SIZE+1];
+char *p;
+unsigned i;
+char msg[MAX_BANNER_SIZE+32];
+
+	p = str_cookie;
+	for (i=0;i<sizeof(ws->cookie);i++) {
+		sprintf(p, "%.2x", (unsigned int)ws->cookie[i]);
+		p+=2;
+	}
+
+	/* reply */
+	tls_cork(ws->session);
+
+	ret = tls_printf(ws->session, "HTTP/1.%u 200 OK\r\n", http_ver);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "Connection: Keep-Alive\r\n");
+	if (ret < 0)
+		return -1;
+	
+	ret = tls_puts(ws->session, "Content-Type: text/xml\r\n");
+	if (ret < 0)
+		return -1;
+
+	if (ws->config->banner) {
+		size = snprintf(msg, sizeof(msg), "<banner>%s</banner>", ws->config->banner);
+		if (size <= 0)
+			return -1;
+	} else {
+		msg[0] = 0;
+		size = 0;
+	}
+
+	size += (sizeof(SUCCESS_MSG_HEAD)-1) + (sizeof(SUCCESS_MSG_FOOT)-1);
+
+        ret = tls_printf(ws->session, "Content-Length: %u\r\n", (unsigned)size);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "X-Transcend-Version: 1\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_printf(ws->session, "Set-Cookie: webvpn=%s;Max-Age=%u\r\n", str_cookie, (unsigned)ws->config->cookie_validity);
+	if (ret < 0)
+		return -1;
+
+	if (ws->config->xml_config_file) {
+		ret = tls_printf(ws->session, "Set-Cookie: webvpnc=bu:/&p:t&iu:1/&sh:%s&lu:/+CSCOT+/translation-table?textdomain%%3DAnyConnect%%26type%%3Dmanifest&fu:profiles%%2Fprofile.xml&fh:%s\r\n", ws->config->cert_hash,ws->config->xml_config_hash);
+		if (ret < 0)
+			return -1;
+	}
+
+	ret = tls_printf(ws->session, "\r\n"SUCCESS_MSG_HEAD"%s"SUCCESS_MSG_FOOT, msg);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_uncork(ws->session);
+	if (ret < 0)
+		return -1;
+		
+	return 0;
+}
 
 int post_old_auth_handler(worker_st *ws, unsigned http_ver)
 {
-int ret, size;
+int ret;
 struct http_req_st *req = &ws->req;
 const char* reason = "Authentication failed";
-char str_cookie[2*COOKIE_SIZE+1];
 char * username = NULL;
 char * password = NULL;
 char *p;
-unsigned int i;
 struct cmd_auth_req_st areq;
-char msg[MAX_BANNER_SIZE+32];
 
 	memset(&areq, 0, sizeof(areq));
 
@@ -412,59 +477,7 @@ char msg[MAX_BANNER_SIZE+32];
 
 	oclog(ws, LOG_INFO, "User '%s' logged in", ws->username);
 
-	p = str_cookie;
+	return post_common_handler(ws, http_ver);;
-	for (i=0;i<sizeof(ws->cookie);i++) {
-		sprintf(p, "%.2x", (unsigned int)ws->cookie[i]);
-		p+=2;
-	}
-
-	/* reply */
-	tls_cork(ws->session);
-
-	ret = tls_printf(ws->session, "HTTP/1.%u 200 OK\r\n", http_ver);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_puts(ws->session, "Connection: Keep-Alive\r\n");
-	if (ret < 0)
-		return -1;
-	
-	ret = tls_puts(ws->session, "Content-Type: text/xml\r\n");
-	if (ret < 0)
-		return -1;
-
-	if (ws->config->banner) {
-		size = snprintf(msg, sizeof(msg), "<banner>%s</banner>", ws->config->banner);
-		if (size <= 0)
-			return -1;
-	} else {
-		msg[0] = 0;
-		size = 0;
-	}
-
-	size += (sizeof(SUCCESS_MSG_HEAD)-1) + (sizeof(SUCCESS_MSG_FOOT)-1);
-
-        ret = tls_printf(ws->session, "Content-Length: %u\r\n", (unsigned)size);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_puts(ws->session, "X-Transcend-Version: 1\r\n");
-	if (ret < 0)
-		return -1;
-
-	ret = tls_printf(ws->session, "Set-Cookie: webvpn=%s;Max-Age=%u\r\n", str_cookie, (unsigned)ws->config->cookie_validity);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_printf(ws->session, "\r\n"SUCCESS_MSG_HEAD"%s"SUCCESS_MSG_FOOT, msg);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_uncork(ws->session);
-	if (ret < 0)
-		return -1;
-
-	return 0;
 
 auth_fail:
 	tls_printf(ws->session,
@@ -480,16 +493,13 @@ auth_fail:
 
 int post_new_auth_handler(worker_st *ws, unsigned http_ver)
 {
-int ret, size;
+int ret;
 struct http_req_st *req = &ws->req;
 const char* reason = "Authentication failed";
-char str_cookie[2*COOKIE_SIZE+1];
 char * username = NULL;
 char * password = NULL;
 char *p;
-unsigned int i;
 struct cmd_auth_req_st areq;
-char msg[MAX_BANNER_SIZE+32];
 
 	memset(&areq, 0, sizeof(areq));
 
@@ -544,60 +554,7 @@ char msg[MAX_BANNER_SIZE+32];
 
 	oclog(ws, LOG_INFO, "User '%s' logged in", ws->username);
 
-	p = str_cookie;
+	return post_common_handler(ws, http_ver);;
-	for (i=0;i<sizeof(ws->cookie);i++) {
-		sprintf(p, "%.2x", (unsigned int)ws->cookie[i]);
-		p+=2;
-	}
-
-	/* reply */
-	tls_cork(ws->session);
-
-	ret = tls_printf(ws->session, "HTTP/1.%u 200 OK\r\n", http_ver);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_puts(ws->session, "Connection: Keep-Alive\r\n");
-	if (ret < 0)
-		return -1;
-
-	ret = tls_puts(ws->session, "Content-Type: text/xml\r\n");
-	if (ret < 0)
-		return -1;
-
-	if (ws->config->banner) {
-		size = snprintf(msg, sizeof(msg), "<banner>%s</banner>", ws->config->banner);
-		if (size <= 0)
-			return -1;
-	} else {
-		msg[0] = 0;
-		size = 0;
-	}
-
-	size += (sizeof(SUCCESS_MSG_HEAD)-1) + (sizeof(SUCCESS_MSG_FOOT)-1);
-
-        ret = tls_printf(ws->session, "Content-Length: %u\r\n", (unsigned)size);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_puts(ws->session, "X-Transcend-Version: 1\r\n");
-	if (ret < 0)
-		return -1;
-
-	ret = tls_printf(ws->session, "Set-Cookie: webvpn=%s;Max-Age=%u\r\n", str_cookie, (unsigned)ws->config->cookie_validity);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_printf(ws->session, "\r\n"SUCCESS_MSG_HEAD"%s"SUCCESS_MSG_FOOT, msg);
-	if (ret < 0)
-		return -1;
-
-	ret = tls_uncork(ws->session);
-	if (ret < 0)
-		return -1;
-
-
-	return 0;
 
 ask_auth:
 	return get_auth_handler(ws, http_ver);

src/worker-vpn.c

@@ -81,23 +81,128 @@ static int connect_handler(worker_st *ws);
 typedef int (*url_handler_fn)(worker_st*, unsigned http_ver);
 struct known_urls_st {
 	const char* url;
+	unsigned url_size;
 	url_handler_fn get_handler;
 	url_handler_fn post_handler;
 };
 
+int get_config_handler(worker_st *ws, unsigned http_ver)
+{
+int ret;
+struct stat st;
+
+	oclog(ws, LOG_DEBUG, "requested config: %s", ws->req.url); 
+	if (ws->config->xml_config_file == NULL) {
+		oclog(ws, LOG_INFO, "requested config but no config file is set");
+		tls_printf(ws->session, "HTTP/1.%u 404 Not found\r\n", http_ver);
+		return -1;
+	}
+	
+	ret = stat( ws->config->xml_config_file, &st);
+	if (ret == -1) {
+		oclog(ws, LOG_INFO, "cannot load config file '%s'", ws->config->xml_config_file);
+		tls_printf(ws->session, "HTTP/1.%u 404 Not found\r\n", http_ver);
+		return -1;
+	}
+
+	tls_cork(ws->session);
+	ret = tls_printf(ws->session, "HTTP/1.%u 200 OK\r\n", http_ver);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "Connection: Keep-Alive\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "Content-Type: text/xml\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "X-Transcend-Version: 1\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_printf(ws->session, "Content-Length: %u\r\n", (unsigned)st.st_size);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_uncork(ws->session);
+	if (ret < 0)
+		return -1;
+	
+	ret = tls_send_file(ws->session, ws->config->xml_config_file);
+	if (ret < 0) {
+		oclog(ws, LOG_ERR, "error sending file '%s': %s", ws->config->xml_config_file, gnutls_strerror(ret));
+		return -1;
+	}
+
+	return 0;
+}
+
+int get_cscot_handler(worker_st *ws, unsigned http_ver)
+{
+int ret;
+
+	oclog(ws, LOG_DEBUG, "requested CSCOT: %s", ws->req.url); 
+
+	tls_cork(ws->session);
+	ret = tls_printf(ws->session, "HTTP/1.%u 200 OK\r\n", http_ver);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "Connection: Keep-Alive\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "Content-Type: text/xml\r\n");
+	if (ret < 0)
+		return -1;
+
+	ret = tls_puts(ws->session, "X-Transcend-Version: 1\r\n");
+	if (ret < 0)
+		return -1;
+
+#define MANIFEST "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<vpn rev=\"1.0\">\n" \
+		"</vpn>\n"
+	ret = tls_printf(ws->session, "Content-Length: %u\r\n\r\n", (unsigned)sizeof(MANIFEST)-1);
+	if (ret < 0)
+		return -1;
+		
+	ret = tls_puts(ws->session, MANIFEST);
+	if (ret < 0)
+		return -1;
+
+	ret = tls_uncork(ws->session);
+	if (ret < 0)
+		return -1;
+	
+	return 0;
+}
+
+#define LL(x,y,z) {x, sizeof(x)-1, y, z}
 struct known_urls_st known_urls[] = {
-		{"/", get_auth_handler, post_new_auth_handler},
+		LL("/", get_auth_handler, post_new_auth_handler),
-		{"/auth", get_auth_handler, post_old_auth_handler},
+		LL("/auth", get_auth_handler, post_old_auth_handler),
-		{NULL, NULL}
+		LL("/profiles", get_config_handler, NULL),
+		LL("/+CSCOT+/translation-table", get_cscot_handler, NULL),
+		{NULL, 0, NULL, NULL}
 };
 
 static url_handler_fn get_url_handler(const char* url)
 {
 struct known_urls_st *p;
+unsigned len = strlen(url);
 
 	p = known_urls;
 	do {
-		if (p->url != NULL && strcmp(p->url, url)==0)
+		if (p->url != NULL && (
+		        (len == p->url_size && strcmp(p->url, url)==0) ||
+			(len >= p->url_size && strncmp(p->url, url, p->url_size)==0 && 
+				(url[p->url_size] == '/' || url[p->url_size] == '?'))))
 			return p->get_handler;
 		p++;
 	} while(p->url != NULL);
@@ -409,7 +514,7 @@ void vpn_server(struct worker_st* ws)
 	do {
 		ret = gnutls_handshake(session);
 	} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
-	GNUTLS_FATAL_ERR(ret);
+	GNUTLS_S_FATAL_ERR(session, ret);
 
 	oclog(ws, LOG_DEBUG, "TLS handshake completed");
 
@@ -988,7 +1093,10 @@ unsigned mtu_overhead, tls_mtu = 0;
 hsk_restart:
 					ret = gnutls_handshake(ws->dtls_session);
 					if (ret < 0 && gnutls_error_is_fatal(ret) != 0) {
-						oclog(ws, LOG_ERR, "error in DTLS handshake: %s\n", gnutls_strerror(ret));
+						if (ret == GNUTLS_E_FATAL_ALERT_RECEIVED)
+							oclog(ws, LOG_ERR, "error in DTLS handshake: %s: %s\n", gnutls_strerror(ret), gnutls_alert_get_name(gnutls_alert_get(ws->dtls_session)));
+						else
+							oclog(ws, LOG_ERR, "error in DTLS handshake: %s\n", gnutls_strerror(ret));
 						ws->udp_state = UP_DISABLED;
 						break;
 					}