WIP

5 files changed, 141 insertions, 12 deletions

diff --git a/lib/Makefile b/lib/Makefile
index cb64ed4..c622dc2 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -4,6 +4,7 @@ OFILES = attr.o \
 	debug.o \
 	err.o \
 	packet.o \
+	request.o \
 	radsec.o
 
 all: libradsec.a
diff --git a/lib/include/radsec/radsec-impl.h b/lib/include/radsec/radsec-impl.h
index 5c85f26..c92d9e9 100644
--- a/lib/include/radsec/radsec-impl.h
+++ b/lib/include/radsec/radsec-impl.h
@@ -40,7 +40,7 @@ struct rs_handle {
 struct rs_peer {
     struct rs_connection *conn;
     struct evutil_addrinfo *addr;
-    int s;			/* Socket.  */
+    int fd;		/* Socket.  */
     char is_connecting;	/* FIXME: replace with a single state member */
     char is_connected;	/* FIXME: replace */
     char *secret;
diff --git a/lib/include/radsec/radsec.h b/lib/include/radsec/radsec.h
new file mode 100644
index 0000000..158ca2a
--- /dev/null
+++ b/lib/include/radsec/radsec.h
@@ -0,0 +1,122 @@
+/** @file libradsec.h
+    @brief Header file for libradsec.  */
+/* See the file COPYING for licensing information.  */
+
+#include <unistd.h>
+
+enum rs_err_code {
+    RSE_OK = 0,
+    RSE_NOMEM = 1,
+    RSE_NOSYS = 2,
+    RSE_INVALID_CTX = 3,
+    RSE_INVALID_CONN = 4,
+    RSE_CONN_TYPE_MISMATCH = 5,
+    RSE_FR = 6,
+    RSE_BADADDR = 7,
+    RSE_NOPEER = 8,
+    RSE_EVENT = 9,
+    RSE_CONNERR = 10,
+    RSE_SOME_ERROR = 21,
+};
+
+enum rs_conn_type {
+    RS_CONN_TYPE_NONE = 0,
+    RS_CONN_TYPE_UDP,
+    RS_CONN_TYPE_TCP,
+    RS_CONN_TYPE_TLS,
+    RS_CONN_TYPE_DTLS,
+};
+typedef unsigned int rs_conn_type_t;
+
+
+/* Data types.  */
+struct rs_handle;		/* radsec-impl.h */
+struct rs_connection;		/* radsec-impl.h */
+struct rs_packet;		/* radsec-impl.h */
+struct rs_conn;			/* radsec-impl.h */
+struct rs_attr;			/* radsec-impl.h */
+struct rs_error;		/* radsec-impl.h */
+struct rs_peer;			/* radsec-impl.h */
+struct radius_packet;		/* <freeradius/libradius.h> */
+struct event_base;		/* <event2/event-internal.h> */
+
+typedef void * (*rs_calloc_fp)(size_t nmemb, size_t size);
+typedef void * (*rs_malloc_fp)(size_t size);
+typedef void (*rs_free_fp)(void *ptr);
+typedef void * (*rs_realloc_fp)(void *ptr, size_t size);
+struct rs_alloc_scheme {
+    rs_calloc_fp calloc;
+    rs_malloc_fp malloc;
+    rs_free_fp free;
+    rs_realloc_fp realloc;
+};
+
+typedef void (*rs_conn_connected_cb)(void *user_data /* FIXME: peer? */);
+typedef void (*rs_conn_disconnected_cb)(void *user_data /* FIXME: reason? */);
+typedef void (*rs_conn_packet_received_cb)(const struct rs_packet *packet,
+					   void *user_data);
+typedef void (*rs_conn_packet_sent_cb)(void *user_data);
+struct rs_conn_callbacks {
+    /** Callback invoked when the connection has been established.  */
+    rs_conn_connected_cb connected_cb;
+    /** Callback invoked when the connection has been torn down.  */
+    rs_conn_disconnected_cb disconnected_cb;
+    /** Callback invoked when a packet was received.  */
+    rs_conn_packet_received_cb received_cb;
+    /** Callback invoked when a packet was successfully sent.  */
+    rs_conn_packet_sent_cb sent_cb;
+};
+
+
+/* Function prototypes.  */
+/* Context.  */
+int rs_context_create(struct rs_handle **ctx, const char *dict);
+void rs_context_destroy(struct rs_handle *ctx);
+int rs_context_set_alloc_scheme(struct rs_handle *ctx, struct rs_alloc_scheme *scheme);
+int rs_context_config_read(struct rs_handle *ctx, const char *config_file);
+
+/* Server and client configuration.  */
+void rs_server_set_timeout(struct rs_peer *server, int timeout);
+void rs_server_set_tries(struct rs_peer *server, int tries);
+int rs_server_set_secret(struct rs_peer *server, const char *secret);
+
+/* Connection.  */
+int rs_conn_create(struct rs_handle *ctx, struct rs_connection **conn);
+int rs_conn_add_server(struct rs_connection *conn, struct rs_peer **server, rs_conn_type_t type, const char *hostname, int port);
+int rs_conn_add_listener(struct rs_connection  *conn, rs_conn_type_t type, const char *hostname, int port);
+void rs_conn_destroy(struct rs_connection *conn);
+int rs_conn_set_eventbase(struct rs_connection *conn, struct event_base *eb);
+int rs_conn_set_callbacks(struct rs_connection *conn, struct rs_conn_callbacks *cb);
+struct rs_conn_callbacks *rs_conn_get_callbacks(struct rs_connection *conn);
+int rs_conn_select_server(struct rs_connection *conn, const char *name);
+int rs_conn_get_current_server(struct rs_connection *conn, const char *name, size_t buflen);
+int rs_conn_receive_packet(struct rs_connection *conn, struct rs_packet **pkt_out);
+
+/* Packet.  */
+int rs_packet_create_acc_request(struct rs_connection *conn, struct rs_packet **pkt, const char *user_name, const char *user_pw);
+//int rs_packet_create_acc_accept(cstruct rs_connection *conn, struct rs_packet **pkt);
+//int rs_packet_create_acc_reject(struct rs_connection *conn, struct rs_packet **pkt);
+//int rs_packet_create_acc_challenge(struct rs_connection *conn, struct rs_packet **pkt);
+void rs_packet_destroy(struct rs_packet *pkt);
+void rs_packet_add_attr(struct rs_packet *pkt, struct rs_attr *attr);
+int rs_packet_send(struct rs_packet *pkt, void *data);
+struct radius_packet *rs_packet_frpkt(struct rs_packet *pkt);
+
+/* Attribute.  */
+int rs_attr_create(struct rs_connection *conn, struct rs_attr **attr, const char *type, const char *val);
+void rs_attr_destroy(struct rs_attr *attr);
+
+/* Error.  */
+int rs_ctx_err_push(struct rs_handle *ctx, int code, const char *fmt, ...);
+int rs_ctx_err_push_fl(struct rs_handle *ctx, int code, const char *file, int line, const char *fmt, ...);
+struct rs_error *rs_ctx_err_pop (struct rs_handle *ctx);
+int rs_conn_err_push(struct rs_connection *conn, int code, const char *fmt, ...);
+int rs_conn_err_push_fl(struct rs_connection *conn, int code, const char *file, int line, const char *fmt, ...);
+struct rs_error *rs_conn_err_pop (struct rs_connection *conn);
+void rs_err_free(struct rs_error *err);
+char *rs_err_msg(struct rs_error *err, int dofree_flag);
+int rs_err_code(struct rs_error *err, int dofree_flag);
+
+/* Local Variables: */
+/* c-file-style: "stroustrup" */
+/* End: */
diff --git a/lib/packet.c b/lib/packet.c
index 9a27e8c..79c140d 100644
--- a/lib/packet.c
+++ b/lib/packet.c
@@ -219,14 +219,20 @@ _init_evb (struct rs_connection *conn)
 static int
 _init_socket (struct rs_connection *conn, struct rs_peer *p)
 {
-  if (p->s < 0)
+  if (p->fd != -1)
+    return RSE_OK;
+
+  assert (p->addr);
+  p->fd = socket (p->addr->ai_family, p->addr->ai_socktype,
+		  p->addr->ai_protocol);
+  if (p->fd < 0)
+    return rs_conn_err_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
+				strerror (errno));
+  if (evutil_make_socket_nonblocking (p->fd) < 0)
     {
-      assert (p->addr);
-      p->s = socket (p->addr->ai_family, p->addr->ai_socktype,
-		     p->addr->ai_protocol);
-      if (p->s < 0)
-	return rs_conn_err_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
-				    strerror (errno));
+      evutil_closesocket (p->fd);
+      return rs_conn_err_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
+				  strerror (errno));
     }
   return RSE_OK;
 }
@@ -244,7 +250,7 @@ _init_bev (struct rs_connection *conn, struct rs_peer *peer)
 {
   if (!conn->bev)
     {
-      conn->bev = bufferevent_socket_new (conn->evb, peer->s, 0);
+      conn->bev = bufferevent_socket_new (conn->evb, peer->fd, 0);
       if (!conn->bev)
 	return rs_conn_err_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
 				    "bufferevent_socket_new");
@@ -340,7 +346,7 @@ rs_packet_send (struct rs_packet *pkt, void *user_data)
   assert (conn->evb);
   assert (conn->bev);
   assert (conn->active_peer);
-  assert (conn->active_peer->s >= 0);
+  assert (conn->active_peer->fd >= 0);
 
   if (conn->callbacks.connected_cb || conn->callbacks.disconnected_cb
       || conn->callbacks.received_cb || conn->callbacks.sent_cb)
@@ -376,7 +382,7 @@ rs_conn_receive_packet (struct rs_connection *conn, struct rs_packet **pkt_out)
   assert (conn->evb);
   assert (conn->bev);
   assert (conn->active_peer);
-  assert (conn->active_peer->s >= 0);
+  assert (conn->active_peer->fd >= 0);
 
   bufferevent_setwatermark (conn->bev, EV_READ, RS_HEADER_LEN, 0);
   bufferevent_enable (conn->bev, EV_READ);
diff --git a/lib/radsec.c b/lib/radsec.c
index 058d0f8..3a2f5f7 100644
--- a/lib/radsec.c
+++ b/lib/radsec.c
@@ -146,7 +146,7 @@ _peer_new (struct rs_connection *conn, const char *hostname, int port)
     {
       memset (p, 0, sizeof(struct rs_peer));
       p->conn = conn;
-      p->s = -1;
+      p->fd = -1;
       p->addr = addr;
       p->next = conn->peers;
       if (conn->peers)