/*
- * Copyright (c) 2012, JANET(UK)
+ * Copyright (c) 2012-2014, JANET(UK)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#ifndef TID_H
#define TID_H
+#include <talloc.h>
+
#include <arpa/inet.h>
#include <openssl/dh.h>
#include <trust_router/tr_name.h>
#include <trust_router/tr_versioning.h>
-#include <gssapi.h>
-#define TID_PORT 12309
+#include <gssapi.h>
+#include <poll.h>
+#define TID_PORT 12309
typedef enum tid_rc {
TID_SUCCESS = 0,
TID_ERROR
} TID_RC;
-typedef struct tid_srvr_blk {
- struct tid_srvr_blk *next;
- struct in_addr aaa_server_addr;
- TR_NAME *key_name;
- DH *aaa_server_dh; /* AAA server's public dh information */
-} TID_SRVR_BLK;
-
-typedef struct tid_resp {
- TID_RC result;
- TR_NAME *err_msg;
- TR_NAME *rp_realm;
- TR_NAME *realm;
- TR_NAME *comm;
- TR_NAME *orig_coi;
- TID_SRVR_BLK *servers; /* Linked list of servers */
- /* TBD -- Trust Path Used */
-} TID_RESP;
+typedef struct tid_srvr_blk TID_SRVR_BLK;
+
+
+typedef struct _tr_constraint_set TR_CONSTRAINT_SET;
+typedef struct _tid_path TID_PATH;
+
+typedef struct tid_resp TID_RESP;
typedef struct tidc_instance TIDC_INSTANCE;
typedef struct tids_instance TIDS_INSTANCE;
typedef struct tid_req TID_REQ;
+
typedef void (TIDC_RESP_FUNC)(TIDC_INSTANCE *, TID_REQ *, TID_RESP *, void *);
-struct tid_req {
- struct tid_req *next_req;
- int resp_sent;
- int conn;
- gss_ctx_id_t gssctx;
- int resp_rcvd;
- TR_NAME *rp_realm;
- TR_NAME *realm;
- TR_NAME *comm;
- TR_NAME *orig_coi;
- DH *tidc_dh; /* Client's public dh information */
- TIDC_RESP_FUNC *resp_func;
- void *cookie;
-};
-
-struct tidc_instance {
- TID_REQ *req_list;
- // TBD -- Do we still need a separate private key */
- // char *priv_key;
- // int priv_len;
- DH *client_dh; /* Client's DH struct with priv and pub keys */
-};
-
-typedef int (TIDS_REQ_FUNC)(TIDS_INSTANCE *, TID_REQ *, TID_RESP **, void *);
+
+
+typedef int (TIDS_REQ_FUNC)(TIDS_INSTANCE *, TID_REQ *, TID_RESP *, void *);
typedef int (tids_auth_func)(gss_name_t client_name, TR_NAME *display_name, void *cookie);
-struct tids_instance {
- int req_count;
- char *priv_key;
- char *ipaddr;
- TIDS_REQ_FUNC *req_handler;
- tids_auth_func *auth_handler;
- void *cookie;
-};
-/* Utility funciton for TID_REQ structures, in tid/tid_req.c */
+/* Utility functions for TID_REQ structures, in tid/tid_req.c */
+TR_EXPORT TID_REQ *tid_req_new(void);
TR_EXPORT TID_REQ *tid_req_get_next_req(TID_REQ *req);
void tid_req_set_next_req(TID_REQ *req, TID_REQ *next_req);
TR_EXPORT int tid_req_get_resp_sent(TID_REQ *req);
TR_EXPORT void *tid_req_get_cookie(TID_REQ *req);
void tid_req_set_cookie(TID_REQ *req, void *cookie);
TR_EXPORT TID_REQ *tid_dup_req (TID_REQ *orig_req);
+TR_EXPORT void tid_req_free( TID_REQ *req);
/* Utility functions for TID_RESP structure, in tid/tid_resp.c */
-TR_EXPORT TID_RC tid_resp_get_result(TID_RESP *resp);
-void tid_resp_set_result(TID_RESP *resp, TID_RC result);
+
+TID_RESP *tid_resp_new(TALLOC_CTX *mem_ctx);
+void tid_resp_free(TID_RESP *resp);
+TID_RESP *tid_resp_dup(TALLOC_CTX *mem_ctx, TID_RESP *resp);
+TR_EXPORT int tid_resp_get_result(TID_RESP *resp);
+void tid_resp_set_result(TID_RESP *resp, int result);
TR_EXPORT TR_NAME *tid_resp_get_err_msg(TID_RESP *resp);
void tid_resp_set_err_msg(TID_RESP *resp, TR_NAME *err_msg);
TR_EXPORT TR_NAME *tid_resp_get_rp_realm(TID_RESP *resp);
void tid_resp_set_comm(TID_RESP *resp, TR_NAME *comm);
TR_EXPORT TR_NAME *tid_resp_get_orig_coi(TID_RESP *resp);
void tid_resp_set_orig_coi(TID_RESP *resp, TR_NAME *orig_coi);
-TR_EXPORT TID_SRVR_BLK *tid_resp_get_servers(TID_RESP *resp);
-void tid_resp_set_servers(TID_RESP *resp, TID_SRVR_BLK *servers);
-// TBD -- add function to add/remove items from linked list of servers?
+TR_EXPORT TID_SRVR_BLK *tid_resp_get_server(TID_RESP *resp, size_t index);
+TR_EXPORT size_t tid_resp_get_num_servers(const TID_RESP *resp);
+TR_EXPORT const TID_PATH *tid_resp_get_error_path(const TID_RESP *);
+
+/** Get either the error_path or the path of the first server block for
+ * a successful response*/
+TR_EXPORT const TID_PATH *tid_resp_get_a_path(const TID_RESP *);
+/* Server blocks*/
+TR_EXPORT void tid_srvr_get_address(const TID_SRVR_BLK *,
+ const struct sockaddr **out_addr, size_t *out_sa_len);
+TR_EXPORT DH *tid_srvr_get_dh(TID_SRVR_BLK *);
+TR_EXPORT const TR_NAME *tid_srvr_get_key_name(const TID_SRVR_BLK *);
+TR_EXPORT const TID_PATH *tid_srvr_get_path(const TID_SRVR_BLK *);
+/* Key expiration time is expressed as time since 1970-01-01 00:00:00 UTC */
+TR_EXPORT int tid_srvr_get_key_expiration(const TID_SRVR_BLK *, struct timeval *tv_out);
+
+#define tid_resp_servers_foreach(RESP, SERVER, INDEX) \
+ for (INDEX=0,SERVER=NULL; \
+ ((INDEX < tid_resp_get_num_servers(RESP))&&(SERVER = tid_resp_get_server(resp, INDEX))); \
+ INDEX++)
+
/* TID Client functions, in tid/tidc.c */
TR_EXPORT TIDC_INSTANCE *tidc_create (void);
-TR_EXPORT int tidc_open_connection (TIDC_INSTANCE *tidc, char *server, gss_ctx_id_t *gssctx);
-TR_EXPORT int tidc_send_request (TIDC_INSTANCE *tidc, int conn, gss_ctx_id_t gssctx, char *rp_realm, char *realm, char *coi, TIDC_RESP_FUNC *resp_handler, void *cookie);
+TR_EXPORT int tidc_open_connection (TIDC_INSTANCE *tidc, const char *server, unsigned int port, gss_ctx_id_t *gssctx);
+TR_EXPORT int tidc_send_request (TIDC_INSTANCE *tidc, int conn, gss_ctx_id_t gssctx, const char *rp_realm, const char *realm, const char *coi, TIDC_RESP_FUNC *resp_handler, void *cookie);
TR_EXPORT int tidc_fwd_request (TIDC_INSTANCE *tidc, TID_REQ *req, TIDC_RESP_FUNC *resp_handler, void *cookie);
-TR_EXPORT void tidc_destroy (TIDC_INSTANCE *tidc);
+TR_EXPORT DH *tidc_get_dh(TIDC_INSTANCE *);
+TR_EXPORT DH *tidc_set_dh(TIDC_INSTANCE *, DH *);
+TR_EXPORT void tidc_destroy(TIDC_INSTANCE *tidc);
/* TID Server functions, in tid/tids.c */
+TIDS_INSTANCE *tids_new(TALLOC_CTX *mem_ctx);
TR_EXPORT TIDS_INSTANCE *tids_create (void);
TR_EXPORT int tids_start (TIDS_INSTANCE *tids, TIDS_REQ_FUNC *req_handler,
- tids_auth_func *auth_handler,
- void *cookie);
+ tids_auth_func *auth_handler, const char *hostname,
+ unsigned int port, void *cookie);
+TR_EXPORT nfds_t tids_get_listener(TIDS_INSTANCE *tids, TIDS_REQ_FUNC *req_handler,
+ tids_auth_func *auth_handler, const char *hostname,
+ unsigned int port, void *cookie, int *fd_out, size_t max_fd);
+TR_EXPORT int tids_accept(TIDS_INSTANCE *tids, int listen);
TR_EXPORT int tids_send_response (TIDS_INSTANCE *tids, TID_REQ *req, TID_RESP *resp);
TR_EXPORT int tids_send_err_response (TIDS_INSTANCE *tids, TID_REQ *req, const char *err_msg);
TR_EXPORT void tids_destroy (TIDS_INSTANCE *tids);