diff options
Diffstat (limited to 'openbsc/include/sccp/sccp.h')
| -rw-r--r-- | openbsc/include/sccp/sccp.h | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/openbsc/include/sccp/sccp.h b/openbsc/include/sccp/sccp.h deleted file mode 100644 index a0cdf0bae..000000000 --- a/openbsc/include/sccp/sccp.h +++ /dev/null @@ -1,177 +0,0 @@ -/* - * SCCP management code - * - * (C) 2009, 2010 by Holger Hans Peter Freyther <zecke@selfish.org> - * - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#ifndef SCCP_H -#define SCCP_H - -#include <stdlib.h> - -#include <sys/socket.h> -#include <sys/types.h> - -#include "sccp_types.h" - -struct msgb; -struct sccp_system; - -enum { - SCCP_CONNECTION_STATE_NONE, - SCCP_CONNECTION_STATE_REQUEST, - SCCP_CONNECTION_STATE_CONFIRM, - SCCP_CONNECTION_STATE_ESTABLISHED, - SCCP_CONNECTION_STATE_RELEASE, - SCCP_CONNECTION_STATE_RELEASE_COMPLETE, - SCCP_CONNECTION_STATE_REFUSED, - SCCP_CONNECTION_STATE_SETUP_ERROR, -}; - -struct sockaddr_sccp { - sa_family_t sccp_family; /* AF_SCCP in the future??? */ - uint8_t sccp_ssn; /* subssystem number for routing */ - - /* TODO fill in address indicator... if that is ever needed */ - - /* not sure about these */ - /* uint8_t sccp_class; */ -}; - -/* - * parsed structure of an address - */ -struct sccp_address { - struct sccp_called_party_address address; - uint8_t ssn; - uint8_t poi[2]; -}; - -struct sccp_optional_data { - uint8_t data_len; - uint8_t data_start; -}; - -struct sccp_connection { - /* public */ - void *data_ctx; - void (*data_cb)(struct sccp_connection *conn, struct msgb *msg, unsigned int len); - - void *state_ctx; - void (*state_cb)(struct sccp_connection *, int old_state); - - struct sccp_source_reference source_local_reference; - struct sccp_source_reference destination_local_reference; - - int connection_state; - - /* private */ - /* list of active connections */ - struct llist_head list; - struct sccp_system *system; - int incoming; -}; - -/** - * system functionality to implement on top of any other transport layer: - * call sccp_system_incoming for incoming data (from the network) - * sccp will call outgoing whenever outgoing data exists - */ -int sccp_system_init(void (*outgoing)(struct msgb *data, void *ctx), void *context); -int sccp_system_incoming(struct msgb *data); - -/** - * Send data on an existing connection - */ -int sccp_connection_write(struct sccp_connection *connection, struct msgb *data); -int sccp_connection_send_it(struct sccp_connection *connection); -int sccp_connection_close(struct sccp_connection *connection, int cause); -int sccp_connection_free(struct sccp_connection *connection); - -/** - * internal.. - */ -int sccp_connection_force_free(struct sccp_connection *conn); - -/** - * Create a new socket. Set your callbacks and then call bind to open - * the connection. - */ -struct sccp_connection *sccp_connection_socket(void); - -/** - * Open the connection and send additional data - */ -int sccp_connection_connect(struct sccp_connection *conn, - const struct sockaddr_sccp *sccp_called, - struct msgb *data); - -/** - * mostly for testing purposes only. Set the accept callback. - * TODO: add true routing information... in analogy to socket, bind, accept - */ -int sccp_connection_set_incoming(const struct sockaddr_sccp *sock, - int (*accept_cb)(struct sccp_connection *connection, void *data), - void *user_data); - -/** - * Send data in terms of unit data. A fixed address indicator will be used. - */ -int sccp_write(struct msgb *data, - const struct sockaddr_sccp *sock_sender, - const struct sockaddr_sccp *sock_target, int class); -int sccp_set_read(const struct sockaddr_sccp *sock, - int (*read_cb)(struct msgb *msgb, unsigned int, void *user_data), - void *user_data); - -/* generic sock addresses */ -extern const struct sockaddr_sccp sccp_ssn_bssap; - -/* helpers */ -uint32_t sccp_src_ref_to_int(struct sccp_source_reference *ref); -struct sccp_source_reference sccp_src_ref_from_int(uint32_t); - -struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *data, int length); -struct msgb *sccp_create_cc(struct sccp_source_reference *src_ref, struct sccp_source_reference *dst_ref); -struct msgb *sccp_create_rlsd(struct sccp_source_reference *src_ref, struct sccp_source_reference *dst_ref, int cause); -struct msgb *sccp_create_dt1(struct sccp_source_reference *dst_ref, uint8_t *data, uint8_t len); - -/** - * Below this are helper functions and structs for parsing SCCP messages - */ -struct sccp_parse_result { - struct sccp_address called; - struct sccp_address calling; - - /* point to the msg packet */ - struct sccp_source_reference *source_local_reference; - struct sccp_source_reference *destination_local_reference; - - /* data pointer */ - int data_len; -}; - -/* - * helper functions for the nat code - */ -int sccp_determine_msg_type(struct msgb *msg); -int sccp_parse_header(struct msgb *msg, struct sccp_parse_result *result); - -#endif |