WIP

2 files changed, 209 insertions, 0 deletions

diff --git a/lib/include/radsec/libradsec-impl.h b/lib/include/radsec/libradsec-impl.h
new file mode 100644
index 0000000..3abb71e
--- /dev/null
+++ b/lib/include/radsec/libradsec-impl.h
@@ -0,0 +1,88 @@
+/** @file libradsec-impl.h
+    @brief Libraray internal header file for libradsec.  */
+
+/* See the file COPYING for licensing information.  */
+
+#include <freeradius/libradius.h>
+#include <event2/util.h>
+
+/* Constants.  */
+#define RS_HEADER_LEN 4
+
+/* Data types.  */
+enum rs_cred_type {
+    RS_CRED_NONE = 0,
+    RS_CRED_TLS_PSK_RSA,	/* RFC 4279.  */
+};
+typedef unsigned int rs_cred_type_t;
+
+struct rs_packet;
+
+struct rs_credentials {
+    enum rs_cred_type type;
+    char *identity;
+    char *secret;
+};
+
+struct rs_error {
+    int code;
+    char *msg;
+    char buf[1024];
+};
+
+struct rs_handle {
+    struct rs_alloc_scheme alloc_scheme;
+    struct rs_error *err;
+    fr_randctx fr_randctx;
+    /* TODO: dictionary? */
+};
+
+struct rs_peer {
+    struct rs_connection *conn;
+    struct evutil_addrinfo *addr;
+    int s;			/* Socket.  */
+    char is_connecting;
+    char is_connected;
+    char *secret;
+    int timeout;		/* client only */
+    int tries;			/* client only */
+    struct rs_peer *next;
+};
+
+struct rs_connection {
+    struct rs_handle *ctx;
+    struct event_base *evb;
+    struct bufferevent *bev;
+    enum rs_conn_type type;
+    struct rs_credentials transport_credentials;
+    struct rs_conn_callbacks callbacks;
+    struct rs_peer *peers;
+    struct rs_peer *active_peer;
+    struct rs_error *err;
+};
+
+struct rs_packet {
+    struct rs_connection *conn;
+    char hdr_read_flag;
+    uint8_t hdr[4];
+    RADIUS_PACKET *rpkt;
+};
+
+struct rs_attr {
+    struct rs_packet *pkt;
+    VALUE_PAIR *vp;
+};
+
+/* Convenience macros.  */
+#define rs_calloc(h, nmemb, size) \
+    (h->alloc_scheme.calloc ? h->alloc_scheme.calloc : calloc)(nmemb, size)
+#define rs_malloc(h, size) \
+    (h->alloc_scheme.malloc ? h->alloc_scheme.malloc : malloc)(size)
+#define rs_free(h, ptr) \
+    (h->alloc_scheme.free ? h->alloc_scheme.free : free)(ptr)
+#define rs_realloc(h, realloc, ptr, size) \
+    (h->alloc_scheme.realloc ? h->alloc_scheme.realloc : realloc)(ptr, size)
+
+/* Local Variables: */
+/* c-file-style: "stroustrup" */
+/* End: */
diff --git a/lib/include/radsec/libradsec.h b/lib/include/radsec/libradsec.h
new file mode 100644
index 0000000..ce6940e
--- /dev/null
+++ b/lib/include/radsec/libradsec.h
@@ -0,0 +1,121 @@
+/** @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);
+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: */