sccp: Use the external libosmo-sccp as sccp implementation
Add --enable-nat and --enable-osmo-bsc to build applications
requiring the Osmo SCCP library to be installed. We are not
using autodiscover as this is out of fashion.
diff --git a/openbsc/include/Makefile.am b/openbsc/include/Makefile.am
index a4acc23..4596b6e 100644
--- a/openbsc/include/Makefile.am
+++ b/openbsc/include/Makefile.am
@@ -1,3 +1,3 @@
-SUBDIRS = openbsc sccp
+SUBDIRS = openbsc
noinst_HEADERS = mISDNif.h compat_af_isdn.h
diff --git a/openbsc/include/sccp/Makefile.am b/openbsc/include/sccp/Makefile.am
deleted file mode 100644
index 6c8a517..0000000
--- a/openbsc/include/sccp/Makefile.am
+++ /dev/null
@@ -1,2 +0,0 @@
-sccp_HEADERS = sccp_types.h sccp.h
-sccpdir = $(includedir)/sccp
diff --git a/openbsc/include/sccp/sccp.h b/openbsc/include/sccp/sccp.h
deleted file mode 100644
index a0cdf0b..0000000
--- 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
diff --git a/openbsc/include/sccp/sccp_types.h b/openbsc/include/sccp/sccp_types.h
deleted file mode 100644
index 4b14064..0000000
--- a/openbsc/include/sccp/sccp_types.h
+++ /dev/null
@@ -1,420 +0,0 @@
-/*
- * ITU Q.713 defined types for SCCP
- *
- * (C) 2009 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_TYPES_H
-#define SCCP_TYPES_H
-
-#include <endian.h>
-
-/* Table 1/Q.713 - SCCP message types */
-enum sccp_message_types {
- SCCP_MSG_TYPE_CR = 1,
- SCCP_MSG_TYPE_CC = 2,
- SCCP_MSG_TYPE_CREF = 3,
- SCCP_MSG_TYPE_RLSD = 4,
- SCCP_MSG_TYPE_RLC = 5,
- SCCP_MSG_TYPE_DT1 = 6,
- SCCP_MSG_TYPE_DT2 = 7,
- SCCP_MSG_TYPE_AK = 8,
- SCCP_MSG_TYPE_UDT = 9,
- SCCP_MSG_TYPE_UDTS = 10,
- SCCP_MSG_TYPE_ED = 11,
- SCCP_MSG_TYPE_EA = 12,
- SCCP_MSG_TYPE_RSR = 13,
- SCCP_MSG_TYPE_RSC = 14,
- SCCP_MSG_TYPE_ERR = 15,
- SCCP_MSG_TYPE_IT = 16,
- SCCP_MSG_TYPE_XUDT = 17,
- SCCP_MSG_TYPE_XUDTS = 18,
- SCCP_MSG_TYPE_LUDT = 19,
- SCCP_MSG_TYPE_LUDTS = 20
-};
-
-/* Table 2/Q.713 - SCCP parameter name codes */
-enum sccp_parameter_name_codes {
- SCCP_PNC_END_OF_OPTIONAL = 0,
- SCCP_PNC_DESTINATION_LOCAL_REFERENCE = 1,
- SCCP_PNC_SOURCE_LOCAL_REFERENCE = 2,
- SCCP_PNC_CALLED_PARTY_ADDRESS = 3,
- SCCP_PNC_CALLING_PARTY_ADDRESS = 4,
- SCCP_PNC_PROTOCOL_CLASS = 5,
- SCCP_PNC_SEGMENTING = 6,
- SCCP_PNC_RECEIVE_SEQ_NUMBER = 7,
- SCCP_PNC_SEQUENCING = 8,
- SCCP_PNC_CREDIT = 9,
- SCCP_PNC_RELEASE_CAUSE = 10,
- SCCP_PNC_RETURN_CAUSE = 11,
- SCCP_PNC_RESET_CAUSE = 12,
- SCCP_PNC_ERROR_CAUSE = 13,
- SCCP_PNC_REFUSAL_CAUSE = 14,
- SCCP_PNC_DATA = 15,
- SCCP_PNC_SEGMENTATION = 16,
- SCCP_PNC_HOP_COUNTER = 17,
- SCCP_PNC_IMPORTANCE = 18,
- SCCP_PNC_LONG_DATA = 19,
-};
-
-/* Figure 3/Q.713 Called/calling party address */
-enum {
- SCCP_TITLE_IND_NONE = 0,
- SCCP_TITLE_IND_NATURE_ONLY = 1,
- SCCP_TITLE_IND_TRANSLATION_ONLY = 2,
- SCCP_TITLE_IND_TRANS_NUM_ENC = 3,
- SCCP_TITLE_IND_TRANS_NUM_ENC_NATURE = 4,
-};
-
-enum {
- SCCP_CALL_ROUTE_ON_SSN = 1,
- SCCP_CALL_ROUTE_ON_GT = 0,
-};
-
-struct sccp_called_party_address {
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- uint8_t point_code_indicator : 1,
- ssn_indicator : 1,
- global_title_indicator : 4,
- routing_indicator : 1,
- reserved : 1;
-#elif __BYTE_ORDER == __BIG_ENDIAN
- uint8_t reserved : 1,
- routing_indicator : 1,
- global_title_indicator : 4,
- ssn_indicator : 1,
- point_code_indicator : 1;
-#endif
- uint8_t data[0];
-} __attribute__((packed));
-
-/* indicator indicates presence in the above order */
-
-/* Figure 6/Q.713 */
-struct sccp_signalling_point_code {
- uint8_t lsb;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- uint8_t msb : 6,
- reserved : 2;
-#elif __BYTE_ORDER == __BIG_ENDIAN
- uint8_t reserved : 2,
- msb : 6;
-#endif
-} __attribute__((packed));
-
-/* SSN == subsystem number */
-enum sccp_subsystem_number {
- SCCP_SSN_NOT_KNOWN_OR_USED = 0,
- SCCP_SSN_MANAGEMENT = 1,
- SCCP_SSN_RESERVED_ITU = 2,
- SCCP_SSN_ISDN_USER_PART = 3,
- SCCP_SSN_OMAP = 4, /* operation, maint and administration part */
- SCCP_SSN_MAP = 5, /* mobile application part */
- SCCP_SSN_HLR = 6,
- SCCP_SSN_VLR = 7,
- SCCP_SSN_MSC = 8,
- SCCP_SSN_EIC = 9, /* equipent identifier centre */
- SCCP_SSN_AUC = 10, /* authentication centre */
- SCCP_SSN_ISDN_SUPPL_SERVICES = 11,
- SCCP_SSN_RESERVED_INTL = 12,
- SCCP_SSN_ISDN_EDGE_TO_EDGE = 13,
- SCCP_SSN_TC_TEST_RESPONDER = 14,
-
- /* From GSM 03.03 8.2 */
- SCCP_SSN_BSSAP = 254,
- SCCP_SSN_BSSOM = 253,
-};
-
-/* Q.713, 3.4.2.3 */
-enum {
- SCCP_NAI_UNKNOWN = 0,
- SCCP_NAI_SUBSCRIBER_NUMBER = 1,
- SCCP_NAI_RESERVED_NATIONAL = 2,
- SCCP_NAI_NATIONAL_SIGNIFICANT = 3,
- SCCP_NAI_INTERNATIONAL = 4,
-};
-
-struct sccp_global_title {
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- uint8_t nature_of_addr_ind : 7,
- odd_even : 1;
-#elif __BYTE_ORDER == __BIG_ENDIAN
- uint8_t odd_even : 1,
- nature_of_addr_ind : 7;
-#endif
- uint8_t data[0];
-} __attribute__((packed));
-
-/* Q.713, 3.3 */
-struct sccp_source_reference {
- uint8_t octet1;
- uint8_t octet2;
- uint8_t octet3;
-} __attribute__((packed));
-
-/* Q.714, 3.6 */
-enum sccp_protocol_class {
- SCCP_PROTOCOL_CLASS_0 = 0,
- SCCP_PROTOCOL_CLASS_1 = 1,
- SCCP_PROTOCOL_CLASS_2 = 2,
- SCCP_PROTOCOL_CLASS_3 = 3,
-};
-
-/* bits 5-8 when class0, class1 is used */
-enum sccp_protocol_options {
- SCCP_PROTOCOL_NO_SPECIAL = 0,
- SCCP_PROTOCOL_RETURN_MESSAGE = 8,
-};
-
-enum sccp_release_cause {
- SCCP_RELEASE_CAUSE_END_USER_ORIGINATED = 0,
- SCCP_RELEASE_CAUSE_END_USER_CONGESTION = 1,
- SCCP_RELEASE_CAUSE_END_USER_FAILURE = 2,
- SCCP_RELEASE_CAUSE_SCCP_USER_ORIGINATED = 3,
- SCCP_RELEASE_CAUSE_REMOTE_PROCEDURE_ERROR = 4,
- SCCP_RELEASE_CAUSE_INCONSISTENT_CONN_DATA = 5,
- SCCP_RELEASE_CAUSE_ACCESS_FAILURE = 6,
- SCCP_RELEASE_CAUSE_ACCESS_CONGESTION = 7,
- SCCP_RELEASE_CAUSE_SUBSYSTEM_FAILURE = 8,
- SCCP_RELEASE_CAUSE_SUBSYSTEM_CONGESTION = 9,
- SCCP_RELEASE_CAUSE_MTP_FAILURE = 10,
- SCCP_RELEASE_CAUSE_NETWORK_CONGESTION = 11,
- SCCP_RELEASE_CAUSE_EXPIRATION_RESET = 12,
- SCCP_RELEASE_CAUSE_EXPIRATION_INACTIVE = 13,
- SCCP_RELEASE_CAUSE_RESERVED = 14,
- SCCP_RELEASE_CAUSE_UNQUALIFIED = 15,
- SCCP_RELEASE_CAUSE_SCCP_FAILURE = 16,
-};
-
-enum sccp_return_cause {
- SCCP_RETURN_CAUSE_NO_TRANSLATION_NATURE = 0,
- SCCP_RETURN_CAUSE_NO_TRANSLATION = 1,
- SCCP_RETURN_CAUSE_SUBSYSTEM_CONGESTION = 2,
- SCCP_RETURN_CAUSE_SUBSYSTEM_FAILURE = 3,
- SCCP_RETURN_CAUSE_UNEQUIPPED_USER = 4,
- SCCP_RETURN_CAUSE_MTP_FAILURE = 5,
- SCCP_RETURN_CAUSE_NETWORK_CONGESTION = 6,
- SCCP_RETURN_CAUSE_UNQUALIFIED = 7,
- SCCP_RETURN_CAUSE_ERROR_IN_MSG_TRANSPORT = 8,
- SCCP_RETURN_CAUSE_ERROR_IN_LOCAL_PROCESSING = 9,
- SCCP_RETURN_CAUSE_DEST_CANNOT_PERFORM_REASSEMBLY = 10,
- SCCP_RETURN_CAUSE_SCCP_FAILURE = 11,
- SCCP_RETURN_CAUSE_HOP_COUNTER_VIOLATION = 12,
- SCCP_RETURN_CAUSE_SEGMENTATION_NOT_SUPPORTED= 13,
- SCCP_RETURN_CAUSE_SEGMENTATION_FAOLURE = 14
-};
-
-enum sccp_reset_cause {
- SCCP_RESET_CAUSE_END_USER_ORIGINATED = 0,
- SCCP_RESET_CAUSE_SCCP_USER_ORIGINATED = 1,
- SCCP_RESET_CAUSE_MSG_OUT_OF_ORDER_PS = 2,
- SCCP_RESET_CAUSE_MSG_OUT_OF_ORDER_PR = 3,
- SCCP_RESET_CAUSE_RPC_OUT_OF_WINDOW = 4,
- SCCP_RESET_CAUSE_RPC_INCORRECT_PS = 5,
- SCCP_RESET_CAUSE_RPC_GENERAL = 6,
- SCCP_RESET_CAUSE_REMOTE_END_USER_OPERATIONAL= 7,
- SCCP_RESET_CAUSE_NETWORK_OPERATIONAL = 8,
- SCCP_RESET_CAUSE_ACCESS_OPERATIONAL = 9,
- SCCP_RESET_CAUSE_NETWORK_CONGESTION = 10,
- SCCP_RESET_CAUSE_RESERVED = 11,
-};
-
-enum sccp_error_cause {
- SCCP_ERROR_LRN_MISMATCH_UNASSIGNED = 0, /* local reference number */
- SCCP_ERROR_LRN_MISMATCH_INCONSISTENT = 1,
- SCCP_ERROR_POINT_CODE_MISMATCH = 2,
- SCCP_ERROR_SERVICE_CLASS_MISMATCH = 3,
- SCCP_ERROR_UNQUALIFIED = 4,
-};
-
-enum sccp_refusal_cause {
- SCCP_REFUSAL_END_USER_ORIGINATED = 0,
- SCCP_REFUSAL_END_USER_CONGESTION = 1,
- SCCP_REFUSAL_END_USER_FAILURE = 2,
- SCCP_REFUSAL_SCCP_USER_ORIGINATED = 3,
- SCCP_REFUSAL_DESTINATION_ADDRESS_UKNOWN = 4,
- SCCP_REFUSAL_DESTINATION_INACCESSIBLE = 5,
- SCCP_REFUSAL_NET_QOS_NON_TRANSIENT = 6,
- SCCP_REFUSAL_NET_QOS_TRANSIENT = 7,
- SCCP_REFUSAL_ACCESS_FAILURE = 8,
- SCCP_REFUSAL_ACCESS_CONGESTION = 9,
- SCCP_REFUSAL_SUBSYSTEM_FAILURE = 10,
- SCCP_REFUSAL_SUBSYTEM_CONGESTION = 11,
- SCCP_REFUSAL_EXPIRATION = 12,
- SCCP_REFUSAL_INCOMPATIBLE_USER_DATA = 13,
- SCCP_REFUSAL_RESERVED = 14,
- SCCP_REFUSAL_UNQUALIFIED = 15,
- SCCP_REFUSAL_HOP_COUNTER_VIOLATION = 16,
- SCCP_REFUSAL_SCCP_FAILURE = 17,
- SCCP_REFUSAL_UNEQUIPPED_USER = 18,
-};
-
-/*
- * messages... as of Q.713 Chapter 4
- */
-struct sccp_connection_request {
- /* mandantory */
- uint8_t type;
- struct sccp_source_reference source_local_reference;
- uint8_t proto_class;
-
-
- /* variable */
- uint8_t variable_called;
-#if VARIABLE
- called_party_address
-#endif
-
- /* optional */
- uint8_t optional_start;
-
-#if OPTIONAL
- credit 3
- callingparty var 4-n
- data 3-130
- hop_counter 3
- importance 3
- end_of_optional 1
-#endif
-
- uint8_t data[0];
-} __attribute__((packed));
-
-struct sccp_connection_confirm {
- /* mandantory */
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- struct sccp_source_reference source_local_reference;
- uint8_t proto_class;
-
- /* optional */
- uint8_t optional_start;
-
- /* optional */
-#if OPTIONAL
- credit 3
- called party 4
- data 3-130
- importance 3
- end_of_optional 1
-#endif
-
- uint8_t data[0];
-} __attribute__((packed));
-
-struct sccp_connection_refused {
- /* mandantory */
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- uint8_t cause;
-
- /* optional */
- uint8_t optional_start;
-
- /* optional */
-#if OPTIONAL
- called party 4
- data 3-130
- importance 3
- end_of_optional 1
-#endif
-
- uint8_t data[0];
-} __attribute__((packed));
-
-struct sccp_connection_released {
- /* mandantory */
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- struct sccp_source_reference source_local_reference;
- uint8_t release_cause;
-
-
- /* optional */
- uint8_t optional_start;
-
-#if OPTIONAL
- data 3-130
- importance 3
- end_of_optional 1
-#endif
- uint8_t data[0];
-} __attribute__((packed));
-
-struct sccp_connection_release_complete {
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- struct sccp_source_reference source_local_reference;
-} __attribute__((packed));
-
-struct sccp_data_form1 {
- /* mandantory */
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- uint8_t segmenting;
-
- /* variable */
- uint8_t variable_start;
-
-#if VARIABLE
- data 2-256;
-#endif
-
- uint8_t data[0];
-} __attribute__((packed));
-
-
-struct sccp_data_unitdata {
- /* mandantory */
- uint8_t type;
- uint8_t proto_class;
-
-
- /* variable */
- uint8_t variable_called;
- uint8_t variable_calling;
- uint8_t variable_data;
-
-#if VARIABLE
- called party address
- calling party address
-#endif
-
- uint8_t data[0];
-} __attribute__((packed));
-
-struct sccp_data_it {
- /* mandantory */
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- struct sccp_source_reference source_local_reference;
- uint8_t proto_class;
-
- uint8_t sequencing[2];
- uint8_t credit;
-} __attribute__((packed));
-
-struct sccp_proto_err {
- uint8_t type;
- struct sccp_source_reference destination_local_reference;
- uint8_t error_cause;
-};
-
-#endif