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/configure.in b/openbsc/configure.in
index 50189a4..b877e6b 100644
--- a/openbsc/configure.in
+++ b/openbsc/configure.in
@@ -22,6 +22,27 @@
AM_CONDITIONAL(HAVE_LIBGTP, test "x$GPRS_LIBGTP" != "x")
+
+AC_ARG_ENABLE([nat], [AS_HELP_STRING([--enable-nat], [Build the BSC NAT. Requires SCCP])],
+ [
+ PKG_CHECK_MODULES(LIBOSMOSCCP, libosmo-sccp)
+ osmo_ac_build_nat="yes"
+ ],
+ [
+ osmo_ac_build_nat="no"
+ ])
+AM_CONDITIONAL(BUILD_NAT, test "x$osmo_ac_build_nat" = "xyes")
+
+AC_ARG_ENABLE([osmo-bsc], [AS_HELP_STRING([--enable-bsc], [Build the Osmo BSC])],
+ [
+ PKG_CHECK_MODULES(LIBOSMOSCCP, libosmo-sccp)
+ osmo_ac_build_bsc="yes"
+ ],
+ [
+ osmo_ac_build_bsc="no"
+ ])
+AM_CONDITIONAL(BUILD_BSC, test "x$osmo_ac_build_bsc" = "xyes")
+
PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.1.15)
PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.1.9)
@@ -47,9 +68,7 @@
AC_OUTPUT(
openbsc.pc
- libsccp.pc
include/openbsc/Makefile
- include/sccp/Makefile
include/Makefile
src/Makefile
src/ipaccess/Makefile
@@ -61,6 +80,5 @@
tests/gsm0408/Makefile
tests/db/Makefile
tests/channel/Makefile
- tests/sccp/Makefile
tests/bsc-nat/Makefile
Makefile)
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
diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am
index af77f50..523ff6c 100644
--- a/openbsc/src/Makefile.am
+++ b/openbsc/src/Makefile.am
@@ -3,13 +3,18 @@
AM_LDFLAGS = $(LIBOSMOCORE_LIBS)
# build current directory before building gprs
-SUBDIRS = . ipaccess gprs nat bsc
+SUBDIRS = . ipaccess gprs
+
+# Conditional modules
+if BUILD_NAT
+SUBDIRS += nat
+endif
+if BUILD_BSC
+SUBDIRS += bsc
+endif
sbin_PROGRAMS = bsc_hack bs11_config isdnsync bsc_mgcp
-noinst_LIBRARIES = libbsc.a libmsc.a libvty.a libsccp.a libmgcp.a
-
-bscdir = $(libdir)
-bsc_LIBRARIES = libsccp.a
+noinst_LIBRARIES = libbsc.a libmsc.a libvty.a libmgcp.a
libbsc_a_SOURCES = abis_rsl.c abis_nm.c gsm_data.c gsm_04_08_utils.c \
chan_alloc.c debug.c socket.c abis_nm_vty.c \
@@ -28,8 +33,6 @@
libvty_a_SOURCES = common_vty.c
-libsccp_a_SOURCES = sccp/sccp.c
-
libmgcp_a_SOURCES = mgcp/mgcp_protocol.c mgcp/mgcp_network.c mgcp/mgcp_vty.c
bsc_hack_SOURCES = bsc_hack.c bsc_init.c bsc_vty.c vty_interface_layer3.c
diff --git a/openbsc/src/bsc/Makefile.am b/openbsc/src/bsc/Makefile.am
index 3a289c5..6e179a0 100644
--- a/openbsc/src/bsc/Makefile.am
+++ b/openbsc/src/bsc/Makefile.am
@@ -1,5 +1,5 @@
INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
-AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOSCCP_CFLAGS)
AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LIBOSMOVTY_LIBS)
bin_PROGRAMS = osmo-bsc
@@ -8,5 +8,6 @@
osmo_bsc_SOURCES = osmo_bsc_main.c osmo_bsc_rf.c osmo_bsc_vty.c osmo_bsc_api.c \
$(top_srcdir)/src/debug.c $(top_srcdir)/src/bsc_msc.c \
$(top_srcdir)/src/bsc_init.c
-osmo_bsc_LDADD = $(top_builddir)/src/libvty.a $(top_builddir)/src/libsccp.a \
- $(top_builddir)/src/libmgcp.a $(top_builddir)/src/libbsc.a
+osmo_bsc_LDADD = $(top_builddir)/src/libvty.a \
+ $(top_builddir)/src/libmgcp.a $(top_builddir)/src/libbsc.a \
+ $(LIBOSMOSCCP_LIBS)
diff --git a/openbsc/src/bsc/osmo_bsc_main.c b/openbsc/src/bsc/osmo_bsc_main.c
index b1c5001..a678227 100644
--- a/openbsc/src/bsc/osmo_bsc_main.c
+++ b/openbsc/src/bsc/osmo_bsc_main.c
@@ -26,6 +26,8 @@
#include <osmocom/vty/command.h>
#include <osmocore/talloc.h>
+#include <sccp/sccp.h>
+
#define _GNU_SOURCE
#include <getopt.h>
@@ -158,6 +160,9 @@
/* seed the PRNG */
srand(time(NULL));
+ /* initialize SCCP */
+ sccp_set_log_area(DSCCP);
+
rc = bsc_bootstrap_network(NULL, config_file);
if (rc < 0) {
diff --git a/openbsc/src/nat/Makefile.am b/openbsc/src/nat/Makefile.am
index 0ca3bdf..2f37f5c 100644
--- a/openbsc/src/nat/Makefile.am
+++ b/openbsc/src/nat/Makefile.am
@@ -1,5 +1,5 @@
INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
-AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOSCCP_CFLAGS)
AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LIBOSMOVTY_LIBS)
bin_PROGRAMS = bsc_nat
@@ -8,6 +8,6 @@
bsc_nat_SOURCES = bsc_filter.c bsc_mgcp_utils.c bsc_nat.c bsc_nat_utils.c \
bsc_nat_vty.c bsc_sccp.c \
$(top_srcdir)/src/debug.c $(top_srcdir)/src/bsc_msc.c
-bsc_nat_LDADD = $(top_builddir)/src/libvty.a $(top_builddir)/src/libsccp.a \
+bsc_nat_LDADD = $(top_builddir)/src/libvty.a \
$(top_builddir)/src/libmgcp.a $(top_builddir)/src/libbsc.a \
- -lrt
+ -lrt $(LIBOSMOSCCP_LIBS)
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index 538472a..0a37193 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -1178,6 +1178,7 @@
signal(SIGPIPE, SIG_IGN);
/* recycle timer */
+ sccp_set_log_area(DSCCP);
sccp_close.cb = sccp_close_unconfirmed;
sccp_close.data = NULL;
bsc_schedule_timer(&sccp_close, SCCP_CLOSE_TIME, 0);
diff --git a/openbsc/src/sccp/sccp.c b/openbsc/src/sccp/sccp.c
deleted file mode 100644
index 3657080..0000000
--- a/openbsc/src/sccp/sccp.c
+++ /dev/null
@@ -1,1425 +0,0 @@
-/*
- * SCCP management code
- *
- * (C) 2009, 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009, 2010 by On-Waves
- *
- * 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.
- *
- */
-
-#include <string.h>
-
-#include <osmocore/msgb.h>
-#include <openbsc/debug.h>
-#include <osmocore/talloc.h>
-
-#include <sccp/sccp.h>
-
-
-static void *tall_sccp_ctx;
-static LLIST_HEAD(sccp_connections);
-
-#define SCCP_MSG_SIZE 4096
-#define SCCP_MSG_HEADROOM 128
-
-/* global data */
-const struct sockaddr_sccp sccp_ssn_bssap = {
- .sccp_family = 0,
- .sccp_ssn = SCCP_SSN_BSSAP,
-};
-
-struct sccp_system {
- /* layer3 -> layer2 */
- void (*write_data)(struct msgb *data, void *context);
- void *write_context;
-};
-
-
-static struct sccp_system sccp_system = {
- .write_data = NULL,
-};
-
-struct sccp_data_callback {
- /* connection based */
- int (*accept_cb)(struct sccp_connection *, void *);
- void *accept_context;
-
- /* connection less */
- int (*read_cb)(struct msgb *, unsigned int, void *);
- void *read_context;
-
- uint8_t ssn;
- struct llist_head callback;
-};
-
-static LLIST_HEAD(sccp_callbacks);
-
-static struct sccp_data_callback *_find_ssn(uint8_t ssn)
-{
- struct sccp_data_callback *cb;
-
- llist_for_each_entry(cb, &sccp_callbacks, callback) {
- if (cb->ssn == ssn)
- return cb;
- }
-
- /* need to add one */
- cb = talloc_zero(tall_sccp_ctx, struct sccp_data_callback);
- if (!cb) {
- LOGP(DSCCP, LOGL_ERROR, "Failed to allocate sccp callback.\n");
- return NULL;
- }
-
- cb->ssn = ssn;
- llist_add_tail(&cb->callback, &sccp_callbacks);
- return cb;
-}
-
-
-static void _send_msg(struct msgb *msg)
-{
- sccp_system.write_data(msg, sccp_system.write_context);
-}
-
-/*
- * parsing routines
- */
-static int copy_address(struct sccp_address *addr, uint8_t offset, struct msgb *msgb)
-{
- struct sccp_called_party_address *party;
-
- int room = msgb_l2len(msgb) - offset;
- uint8_t read = 0;
- uint8_t length;
-
- if (room <= 0) {
- LOGP(DSCCP, LOGL_ERROR, "Not enough room for an address: %u\n", room);
- return -1;
- }
-
- length = msgb->l2h[offset];
- if (room <= length) {
- LOGP(DSCCP, LOGL_ERROR, "Not enough room for optional data %u %u\n", room, length);
- return -1;
- }
-
-
- party = (struct sccp_called_party_address *)(msgb->l2h + offset + 1);
- if (party->point_code_indicator) {
- if (length <= read + 2) {
- LOGP(DSCCP, LOGL_ERROR, "POI does not fit %u\n", length);
- return -1;
- }
-
-
- memcpy(&addr->poi, &party->data[read], 2);
- read += 2;
- }
-
- if (party->ssn_indicator) {
- if (length <= read + 1) {
- LOGP(DSCCP, LOGL_ERROR, "SSN does not fit %u\n", length);
- return -1;
- }
-
- addr->ssn = party->data[read];
- read += 1;
- }
-
- if (party->global_title_indicator) {
- LOGP(DSCCP, LOGL_ERROR, "GTI not supported %u\n", *(uint8_t *)party);
- return -1;
- }
-
- addr->address = *party;
- return 0;
-}
-
-static int check_address(struct sccp_address *addr)
-{
- /* ignore point_code_indicator... it should be zero... but */
- if (addr->address.ssn_indicator != 1
- || addr->address.global_title_indicator == 1
- || addr->address.routing_indicator != 1) {
- LOGP(DSCCP, LOGL_ERROR,
- "Invalid called address according to 08.06: 0x%x 0x%x\n",
- *(uint8_t *)&addr->address, addr->ssn);
- return -1;
- }
-
- return 0;
-}
-
-static int _sccp_parse_optional_data(const int offset,
- struct msgb *msgb, struct sccp_optional_data *data)
-{
- uint16_t room = msgb_l2len(msgb) - offset;
- uint16_t read = 0;
-
- while (room > read) {
- uint8_t type = msgb->l2h[offset + read];
- if (type == SCCP_PNC_END_OF_OPTIONAL)
- return 0;
-
- if (read + 1 >= room) {
- LOGP(DSCCP, LOGL_ERROR, "no place for length\n");
- return 0;
- }
-
- uint8_t length = msgb->l2h[offset + read + 1];
- read += 2 + length;
-
-
- if (room <= read) {
- LOGP(DSCCP, LOGL_ERROR,
- "no space for the data: type: %d read: %d room: %d l2: %d\n",
- type, read, room, msgb_l2len(msgb));
- return 0;
- }
-
- if (type == SCCP_PNC_DATA) {
- data->data_len = length;
- data->data_start = offset + read - length;
- }
-
- }
-
- return -1;
-}
-
-int _sccp_parse_connection_request(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static const uint32_t header_size =
- sizeof(struct sccp_connection_request);
- static const uint32_t optional_offset =
- offsetof(struct sccp_connection_request, optional_start);
- static const uint32_t called_offset =
- offsetof(struct sccp_connection_request, variable_called);
-
- struct sccp_connection_request *req = (struct sccp_connection_request *)msgb->l2h;
- struct sccp_optional_data optional_data;
-
- /* header check */
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- /* copy out the calling and called address. Add the offset */
- if (copy_address(&result->called, called_offset + req->variable_called, msgb) != 0)
- return -1;
-
- if (check_address(&result->called) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Invalid called address according to 08.06: 0x%x 0x%x\n",
- *(uint8_t *)&result->called.address, result->called.ssn);
- return -1;
- }
-
- result->source_local_reference = &req->source_local_reference;
-
- /*
- * parse optional data.
- */
- memset(&optional_data, 0, sizeof(optional_data));
- if (_sccp_parse_optional_data(optional_offset + req->optional_start, msgb, &optional_data) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "parsing of optional data failed.\n");
- return -1;
- }
-
- if (optional_data.data_len != 0) {
- msgb->l3h = &msgb->l2h[optional_data.data_start];
- result->data_len = optional_data.data_len;
- } else {
- result->data_len = 0;
- }
-
- return 0;
-}
-
-int _sccp_parse_connection_released(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static int header_size = sizeof(struct sccp_connection_released);
- static int optional_offset = offsetof(struct sccp_connection_released, optional_start);
-
- struct sccp_optional_data optional_data;
- struct sccp_connection_released *rls = (struct sccp_connection_released *) msgb->l2h;
-
- /* we don't have enough size for the struct */
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb > header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- memset(&optional_data, 0, sizeof(optional_data));
- if (_sccp_parse_optional_data(optional_offset + rls->optional_start, msgb, &optional_data) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "parsing of optional data failed.\n");
- return -1;
- }
-
- result->source_local_reference = &rls->source_local_reference;
- result->destination_local_reference = &rls->destination_local_reference;
-
- if (optional_data.data_len != 0) {
- msgb->l3h = &msgb->l2h[optional_data.data_start];
- result->data_len = optional_data.data_len;
- } else {
- result->data_len = 0;
- }
-
- return 0;
-}
-
-int _sccp_parse_connection_refused(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static const uint32_t header_size =
- sizeof(struct sccp_connection_refused);
- static int optional_offset = offsetof(struct sccp_connection_refused, optional_start);
-
- struct sccp_optional_data optional_data;
- struct sccp_connection_refused *ref;
-
- /* header check */
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- ref = (struct sccp_connection_refused *) msgb->l2h;
-
- result->destination_local_reference = &ref->destination_local_reference;
-
- memset(&optional_data, 0, sizeof(optional_data));
- if (_sccp_parse_optional_data(optional_offset + ref->optional_start, msgb, &optional_data) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "parsing of optional data failed.\n");
- return -1;
- }
-
- /* optional data */
- if (optional_data.data_len != 0) {
- msgb->l3h = &msgb->l2h[optional_data.data_start];
- result->data_len = optional_data.data_len;
- } else {
- result->data_len = 0;
- }
-
- return 0;
-}
-
-int _sccp_parse_connection_confirm(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static uint32_t header_size =
- sizeof(struct sccp_connection_confirm);
- static const uint32_t optional_offset =
- offsetof(struct sccp_connection_confirm, optional_start);
-
- struct sccp_optional_data optional_data;
- struct sccp_connection_confirm *con;
-
- /* header check */
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- con = (struct sccp_connection_confirm *) msgb->l2h;
- result->destination_local_reference = &con->destination_local_reference;
- result->source_local_reference = &con->source_local_reference;
-
- memset(&optional_data, 0, sizeof(optional_data));
- if (_sccp_parse_optional_data(optional_offset + con->optional_start, msgb, &optional_data) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "parsing of optional data failed.\n");
- return -1;
- }
-
- if (optional_data.data_len != 0) {
- msgb->l3h = &msgb->l2h[optional_data.data_start];
- result->data_len = optional_data.data_len;
- } else {
- result->data_len = 0;
- }
-
- return 0;
-}
-
-int _sccp_parse_connection_release_complete(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static int header_size = sizeof(struct sccp_connection_release_complete);
-
- struct sccp_connection_release_complete *cmpl;
-
- /* header check */
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- cmpl = (struct sccp_connection_release_complete *) msgb->l2h;
- result->source_local_reference = &cmpl->source_local_reference;
- result->destination_local_reference = &cmpl->destination_local_reference;
-
- return 0;
-}
-
-int _sccp_parse_connection_dt1(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static int header_size = sizeof(struct sccp_data_form1);
- static int variable_offset = offsetof(struct sccp_data_form1, variable_start);
-
- struct sccp_data_form1 *dt1 = (struct sccp_data_form1 *)msgb->l2h;
-
- /* we don't have enough size for the struct */
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb > header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- if (dt1->segmenting != 0) {
- LOGP(DSCCP, LOGL_ERROR, "This packet has segmenting, not supported: %d\n", dt1->segmenting);
- return -1;
- }
-
- result->destination_local_reference = &dt1->destination_local_reference;
-
- /* some more size checks in here */
- if (msgb_l2len(msgb) < variable_offset + dt1->variable_start + 1) {
- LOGP(DSCCP, LOGL_ERROR, "Not enough space for variable start: %u %u\n",
- msgb_l2len(msgb), dt1->variable_start);
- return -1;
- }
-
- result->data_len = msgb->l2h[variable_offset + dt1->variable_start];
- msgb->l3h = &msgb->l2h[dt1->variable_start + variable_offset + 1];
-
- if (msgb_l3len(msgb) < result->data_len) {
- LOGP(DSCCP, LOGL_ERROR, "Not enough room for the payload: %u %u\n",
- msgb_l3len(msgb), result->data_len);
- return -1;
- }
-
- return 0;
-}
-
-int _sccp_parse_udt(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static const uint32_t header_size = sizeof(struct sccp_data_unitdata);
- static const uint32_t called_offset = offsetof(struct sccp_data_unitdata, variable_called);
- static const uint32_t calling_offset = offsetof(struct sccp_data_unitdata, variable_calling);
- static const uint32_t data_offset = offsetof(struct sccp_data_unitdata, variable_data);
-
- struct sccp_data_unitdata *udt = (struct sccp_data_unitdata *)msgb->l2h;
-
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- /* copy out the calling and called address. Add the off */
- if (copy_address(&result->called, called_offset + udt->variable_called, msgb) != 0)
- return -1;
-
- if (check_address(&result->called) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Invalid called address according to 08.06: 0x%x 0x%x\n",
- *(uint8_t *)&result->called.address, result->called.ssn);
- return -1;
- }
-
- if (copy_address(&result->calling, calling_offset + udt->variable_calling, msgb) != 0)
- return -1;
-
- if (check_address(&result->calling) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Invalid called address according to 08.06: 0x%x 0x%x\n",
- *(uint8_t *)&result->called.address, result->called.ssn);
- }
-
- /* we don't have enough size for the data */
- if (msgb_l2len(msgb) < data_offset + udt->variable_data + 1) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header + offset %u %u %u\n",
- msgb_l2len(msgb), header_size, udt->variable_data);
- return -1;
- }
-
-
- msgb->l3h = &udt->data[udt->variable_data];
- result->data_len = msgb_l3len(msgb);
-
- if (msgb_l3len(msgb) != msgb->l3h[-1]) {
- LOGP(DSCCP, LOGL_ERROR, "msgb is truncated is: %u should: %u\n",
- msgb_l3len(msgb), msgb->l3h[-1]);
- return -1;
- }
-
- return 0;
-}
-
-static int _sccp_parse_it(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static const uint32_t header_size = sizeof(struct sccp_data_it);
-
- struct sccp_data_it *it;
-
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- it = (struct sccp_data_it *) msgb->l2h;
- result->data_len = 0;
- result->source_local_reference = &it->source_local_reference;
- result->destination_local_reference = &it->destination_local_reference;
- return 0;
-}
-
-static int _sccp_parse_err(struct msgb *msgb, struct sccp_parse_result *result)
-{
- static const uint32_t header_size = sizeof(struct sccp_proto_err);
-
- struct sccp_proto_err *err;
-
- if (msgb_l2len(msgb) < header_size) {
- LOGP(DSCCP, LOGL_ERROR, "msgb < header_size %u %u\n",
- msgb_l2len(msgb), header_size);
- return -1;
- }
-
- err = (struct sccp_proto_err *) msgb->l2h;
- result->data_len = 0;
- result->destination_local_reference = &err->destination_local_reference;
- return 0;
-}
-
-/*
- * Send UDT. Currently we have a fixed address...
- */
-static int _sccp_send_data(int class, const struct sockaddr_sccp *in,
- const struct sockaddr_sccp *out, struct msgb *payload)
-{
- struct sccp_data_unitdata *udt;
- uint8_t *data;
-
- if (msgb_l3len(payload) > 256) {
- LOGP(DSCCP, LOGL_ERROR, "The payload is too big for one udt\n");
- return -1;
- }
-
- struct msgb *msg = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp: udt");
- msg->l2h = &msg->data[0];
- udt = (struct sccp_data_unitdata *)msgb_put(msg, sizeof(*udt));
-
- udt->type = SCCP_MSG_TYPE_UDT;
- udt->proto_class = class;
- udt->variable_called = 3;
- udt->variable_calling = 5;
- udt->variable_data = 7;
-
- /* for variable data we start with a size and the data */
- data = msgb_put(msg, 1 + 2);
- data[0] = 2;
- data[1] = 0x42;
- data[2] = out->sccp_ssn;
-
- data = msgb_put(msg, 1 + 2);
- data[0] = 2;
- data[1] = 0x42;
- data[2] = in->sccp_ssn;
-
- /* copy the payload */
- data = msgb_put(msg, 1 + msgb_l3len(payload));
- data[0] = msgb_l3len(payload);
- memcpy(&data[1], payload->l3h, msgb_l3len(payload));
-
- _send_msg(msg);
- return 0;
-}
-
-static int _sccp_handle_read(struct msgb *msgb)
-{
- struct sccp_data_callback *cb;
- struct sccp_parse_result result;
-
- if (_sccp_parse_udt(msgb, &result) != 0)
- return -1;
-
- cb = _find_ssn(result.called.ssn);
- if (!cb || !cb->read_cb) {
- LOGP(DSCCP, LOGL_ERROR, "No routing for UDT for called SSN: %u\n", result.called.ssn);
- return -1;
- }
-
- /* sanity check */
- return cb->read_cb(msgb, msgb_l3len(msgb), cb->read_context);
-}
-
-/*
- * handle connection orientated methods
- */
-static int source_local_reference_is_free(struct sccp_source_reference *reference)
-{
- struct sccp_connection *connection;
-
- llist_for_each_entry(connection, &sccp_connections, list) {
- if (memcmp(reference, &connection->source_local_reference, sizeof(*reference)) == 0)
- return -1;
- }
-
- return 0;
-}
-
-static int destination_local_reference_is_free(struct sccp_source_reference *reference)
-{
- struct sccp_connection *connection;
-
- llist_for_each_entry(connection, &sccp_connections, list) {
- if (memcmp(reference, &connection->destination_local_reference, sizeof(*reference)) == 0)
- return -1;
- }
-
- return 0;
-}
-
-static int assign_source_local_reference(struct sccp_connection *connection)
-{
- static uint32_t last_ref = 0x30000;
- int wrapped = 0;
-
- do {
- struct sccp_source_reference reference;
- reference.octet1 = (last_ref >> 0) & 0xff;
- reference.octet2 = (last_ref >> 8) & 0xff;
- reference.octet3 = (last_ref >> 16) & 0xff;
-
- ++last_ref;
- /* do not use the reversed word and wrap around */
- if ((last_ref & 0x00FFFFFF) == 0x00FFFFFF) {
- LOGP(DSCCP, LOGL_DEBUG, "Wrapped searching for a free code\n");
- last_ref = 0;
- ++wrapped;
- }
-
- if (source_local_reference_is_free(&reference) == 0) {
- connection->source_local_reference = reference;
- return 0;
- }
- } while (wrapped != 2);
-
- LOGP(DSCCP, LOGL_ERROR, "Finding a free reference failed\n");
- return -1;
-}
-
-static void _sccp_set_connection_state(struct sccp_connection *connection, int new_state)
-{
- int old_state = connection->connection_state;
-
- connection->connection_state = new_state;
- if (connection->state_cb)
- connection->state_cb(connection, old_state);
-}
-
-struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *inp, int length)
-{
- struct msgb *msgb;
- struct sccp_connection_refused *ref;
- uint8_t *data;
-
- msgb = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp ref");
- if (!msgb) {
- LOGP(DSCCP, LOGL_ERROR, "Failed to allocate refusal msg.\n");
- return NULL;
- }
-
- msgb->l2h = &msgb->data[0];
-
- ref = (struct sccp_connection_refused *) msgb_put(msgb, sizeof(*ref));
- ref->type = SCCP_MSG_TYPE_CREF;
- memcpy(&ref->destination_local_reference, src_ref,
- sizeof(struct sccp_source_reference));
- ref->cause = cause;
- ref->optional_start = 1;
-
- if (inp) {
- data = msgb_put(msgb, 1 + 1 + length);
- data[0] = SCCP_PNC_DATA;
- data[1] = length;
- memcpy(&data[2], inp, length);
- }
-
- data = msgb_put(msgb, 1);
- data[0] = SCCP_PNC_END_OF_OPTIONAL;
- return msgb;
-}
-
-static int _sccp_send_refuse(struct sccp_source_reference *src_ref, int cause)
-{
- struct msgb *msgb = sccp_create_refuse(src_ref, cause, NULL, 0);
- if (!msgb)
- return -1;
-
- _send_msg(msgb);
- return 0;
-}
-
-struct msgb *sccp_create_cc(struct sccp_source_reference *src_ref,
- struct sccp_source_reference *dst_ref)
-{
- struct msgb *response;
- struct sccp_connection_confirm *confirm;
- uint8_t *optional_data;
-
- response = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp confirm");
- if (!response) {
- LOGP(DSCCP, LOGL_ERROR, "Failed to create SCCP Confirm.\n");
- return NULL;
- }
-
- response->l2h = &response->data[0];
-
- confirm = (struct sccp_connection_confirm *) msgb_put(response, sizeof(*confirm));
-
- confirm->type = SCCP_MSG_TYPE_CC;
- memcpy(&confirm->destination_local_reference,
- dst_ref, sizeof(*dst_ref));
- memcpy(&confirm->source_local_reference,
- src_ref, sizeof(*src_ref));
- confirm->proto_class = 2;
- confirm->optional_start = 1;
-
- optional_data = (uint8_t *) msgb_put(response, 1);
- optional_data[0] = SCCP_PNC_END_OF_OPTIONAL;
- return response;
-}
-
-static int _sccp_send_connection_confirm(struct sccp_connection *connection)
-{
- struct msgb *response;
-
- if (assign_source_local_reference(connection) != 0)
- return -1;
-
- response = sccp_create_cc(&connection->source_local_reference,
- &connection->destination_local_reference);
- if (!response)
- return -1;
-
- _send_msg(response);
- _sccp_set_connection_state(connection, SCCP_CONNECTION_STATE_ESTABLISHED);
- return 0;
-}
-
-static int _sccp_send_connection_request(struct sccp_connection *connection,
- const struct sockaddr_sccp *called, struct msgb *msg)
-{
- struct msgb *request;
- struct sccp_connection_request *req;
- uint8_t *data;
- uint8_t extra_size = 3 + 1;
-
-
- if (msg && (msgb_l3len(msg) < 3 || msgb_l3len(msg) > 130)) {
- LOGP(DSCCP, LOGL_ERROR, "Invalid amount of data... %d\n", msgb_l3len(msg));
- return -1;
- }
-
- /* try to find a id */
- if (assign_source_local_reference(connection) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Assigning a local reference failed.\n");
- _sccp_set_connection_state(connection, SCCP_CONNECTION_STATE_SETUP_ERROR);
- return -1;
- }
-
-
- if (msg)
- extra_size += 2 + msgb_l3len(msg);
- request = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp connection request");
- request->l2h = &request->data[0];
- req = (struct sccp_connection_request *) msgb_put(request, sizeof(*req));
-
- req->type = SCCP_MSG_TYPE_CR;
- memcpy(&req->source_local_reference, &connection->source_local_reference,
- sizeof(connection->source_local_reference));
- req->proto_class = 2;
- req->variable_called = 2;
- req->optional_start = 4;
-
- /* write the called party address */
- data = msgb_put(request, 1 + 2);
- data[0] = 2;
- data[1] = 0x42;
- data[2] = called->sccp_ssn;
-
- /* write the payload */
- if (msg) {
- data = msgb_put(request, 2 + msgb_l3len(msg));
- data[0] = SCCP_PNC_DATA;
- data[1] = msgb_l3len(msg);
- memcpy(&data[2], msg->l3h, msgb_l3len(msg));
- }
-
- data = msgb_put(request, 1);
- data[0] = SCCP_PNC_END_OF_OPTIONAL;
-
- llist_add_tail(&connection->list, &sccp_connections);
- _sccp_set_connection_state(connection, SCCP_CONNECTION_STATE_REQUEST);
-
- _send_msg(request);
- return 0;
-}
-
-struct msgb *sccp_create_dt1(struct sccp_source_reference *dst_ref, uint8_t *inp_data, uint8_t len)
-{
- struct msgb *msgb;
- struct sccp_data_form1 *dt1;
- uint8_t *data;
-
- msgb = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp dt1");
- if (!msgb) {
- LOGP(DSCCP, LOGL_ERROR, "Failed to create DT1 msg.\n");
- return NULL;
- }
-
- msgb->l2h = &msgb->data[0];
-
- dt1 = (struct sccp_data_form1 *) msgb_put(msgb, sizeof(*dt1));
- dt1->type = SCCP_MSG_TYPE_DT1;
- memcpy(&dt1->destination_local_reference, dst_ref,
- sizeof(struct sccp_source_reference));
- dt1->segmenting = 0;
-
- /* copy the data */
- dt1->variable_start = 1;
- data = msgb_put(msgb, 1 + len);
- data[0] = len;
- memcpy(&data[1], inp_data, len);
-
- return msgb;
-}
-
-static int _sccp_send_connection_data(struct sccp_connection *conn, struct msgb *_data)
-{
- struct msgb *msgb;
-
- if (msgb_l3len(_data) < 2 || msgb_l3len(_data) > 256) {
- LOGP(DSCCP, LOGL_ERROR, "data size too big, segmenting unimplemented.\n");
- return -1;
- }
-
- msgb = sccp_create_dt1(&conn->destination_local_reference,
- _data->l3h, msgb_l3len(_data));
- if (!msgb)
- return -1;
-
- _send_msg(msgb);
- return 0;
-}
-
-static int _sccp_send_connection_it(struct sccp_connection *conn)
-{
- struct msgb *msgb;
- struct sccp_data_it *it;
-
- msgb = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp it");
- msgb->l2h = &msgb->data[0];
- it = (struct sccp_data_it *) msgb_put(msgb, sizeof(*it));
- it->type = SCCP_MSG_TYPE_IT;
- memcpy(&it->destination_local_reference, &conn->destination_local_reference,
- sizeof(struct sccp_source_reference));
- memcpy(&it->source_local_reference, &conn->source_local_reference,
- sizeof(struct sccp_source_reference));
-
- it->proto_class = 0x2;
- it->sequencing[0] = it->sequencing[1] = 0;
- it->credit = 0;
-
- _send_msg(msgb);
- return 0;
-}
-
-struct msgb *sccp_create_rlsd(struct sccp_source_reference *src_ref,
- struct sccp_source_reference *dst_ref, int cause)
-{
- struct msgb *msg;
- struct sccp_connection_released *rel;
- uint8_t *data;
-
- msg = msgb_alloc_headroom(SCCP_MSG_SIZE, SCCP_MSG_HEADROOM,
- "sccp: connection released");
- if (!msg) {
- LOGP(DSCCP, LOGL_ERROR, "Failed to allocate RLSD.\n");
- return NULL;
- }
-
- msg->l2h = &msg->data[0];
- rel = (struct sccp_connection_released *) msgb_put(msg, sizeof(*rel));
- rel->type = SCCP_MSG_TYPE_RLSD;
- rel->release_cause = cause;
-
- /* copy the source references */
- memcpy(&rel->destination_local_reference, dst_ref,
- sizeof(struct sccp_source_reference));
- memcpy(&rel->source_local_reference, src_ref,
- sizeof(struct sccp_source_reference));
-
- data = msgb_put(msg, 1);
- data[0] = SCCP_PNC_END_OF_OPTIONAL;
- return msg;
-}
-
-static int _sccp_send_connection_released(struct sccp_connection *conn, int cause)
-{
- struct msgb *msg;
-
- msg = sccp_create_rlsd(&conn->source_local_reference,
- &conn->destination_local_reference,
- cause);
- if (!msg)
- return -1;
-
- _sccp_set_connection_state(conn, SCCP_CONNECTION_STATE_RELEASE);
- _send_msg(msg);
- return 0;
-}
-
-/*
- * Open a connection. The following is going to happen:
- *
- * - Verify the packet, e.g. that we have no other connection
- * that id.
- * - Ask the user if he wants to accept the connection
- * - Try to open the connection by assigning a source local reference
- * and sending the packet
- */
-static int _sccp_handle_connection_request(struct msgb *msgb)
-{
- struct sccp_parse_result result;
-
- struct sccp_data_callback *cb;
- struct sccp_connection *connection;
-
- if (_sccp_parse_connection_request(msgb, &result) != 0)
- return -1;
-
- cb = _find_ssn(result.called.ssn);
- if (!cb || !cb->accept_cb) {
- LOGP(DSCCP, LOGL_ERROR, "No routing for CR for called SSN: %u\n", result.called.ssn);
- return -1;
- }
-
- /* check if the system wants this connection */
- connection = talloc_zero(tall_sccp_ctx, struct sccp_connection);
- if (!connection) {
- LOGP(DSCCP, LOGL_ERROR, "Allocation failed\n");
- return -1;
- }
-
- /*
- * sanity checks:
- * - Is the source_local_reference in any other connection?
- * then will call accept, assign a "destination" local reference
- * and send a connection confirm, otherwise we will send a refuseed
- * one....
- */
- if (destination_local_reference_is_free(result.source_local_reference) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Need to reject connection with existing reference\n");
- _sccp_send_refuse(result.source_local_reference, SCCP_REFUSAL_SCCP_FAILURE);
- talloc_free(connection);
- return -1;
- }
-
- connection->incoming = 1;
- connection->destination_local_reference = *result.source_local_reference;
-
- if (cb->accept_cb(connection, cb->accept_context) != 0) {
- _sccp_send_refuse(result.source_local_reference, SCCP_REFUSAL_END_USER_ORIGINATED);
- _sccp_set_connection_state(connection, SCCP_CONNECTION_STATE_REFUSED);
- talloc_free(connection);
- return 0;
- }
-
-
- llist_add_tail(&connection->list, &sccp_connections);
-
- if (_sccp_send_connection_confirm(connection) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Sending confirm failed... no available source reference?\n");
-
- _sccp_send_refuse(result.source_local_reference, SCCP_REFUSAL_SCCP_FAILURE);
- _sccp_set_connection_state(connection, SCCP_CONNECTION_STATE_REFUSED);
- llist_del(&connection->list);
- talloc_free(connection);
-
- return -1;
- }
-
- /*
- * If we have data let us forward things.
- */
- if (result.data_len != 0 && connection->data_cb) {
- connection->data_cb(connection, msgb, result.data_len);
- }
-
- return 0;
-}
-
-/* Handle the release confirmed */
-static int _sccp_handle_connection_release_complete(struct msgb *msgb)
-{
- struct sccp_parse_result result;
- struct sccp_connection *conn;
-
- if (_sccp_parse_connection_release_complete(msgb, &result) != 0)
- return -1;
-
- /* find the connection */
- llist_for_each_entry(conn, &sccp_connections, list) {
- if (conn->data_cb
- && memcmp(&conn->source_local_reference,
- result.destination_local_reference,
- sizeof(conn->source_local_reference)) == 0
- && memcmp(&conn->destination_local_reference,
- result.source_local_reference,
- sizeof(conn->destination_local_reference)) == 0) {
- goto found;
- }
- }
-
-
- LOGP(DSCCP, LOGL_ERROR, "Release complete of unknown connection\n");
- return -1;
-
-found:
- llist_del(&conn->list);
- _sccp_set_connection_state(conn, SCCP_CONNECTION_STATE_RELEASE_COMPLETE);
- return 0;
-}
-
-/* Handle the Data Form 1 message */
-static int _sccp_handle_connection_dt1(struct msgb *msgb)
-{
- struct sccp_parse_result result;
- struct sccp_connection *conn;
-
- if (_sccp_parse_connection_dt1(msgb, &result) != 0)
- return -1;
-
- /* lookup if we have a connection with the given reference */
- llist_for_each_entry(conn, &sccp_connections, list) {
- if (conn->data_cb
- && memcmp(&conn->source_local_reference,
- result.destination_local_reference,
- sizeof(conn->source_local_reference)) == 0) {
- goto found;
- }
- }
-
- LOGP(DSCCP, LOGL_ERROR, "No connection found for dt1 data\n");
- return -1;
-
-found:
- conn->data_cb(conn, msgb, result.data_len);
- return 0;
-}
-
-/* confirm a connection release */
-static int _sccp_send_connection_release_complete(struct sccp_connection *connection)
-{
- struct msgb *msgb;
- struct sccp_connection_release_complete *rlc;
-
- msgb = msgb_alloc_headroom(SCCP_MSG_SIZE,
- SCCP_MSG_HEADROOM, "sccp rlc");
- msgb->l2h = &msgb->data[0];
-
- rlc = (struct sccp_connection_release_complete *) msgb_put(msgb, sizeof(*rlc));
- rlc->type = SCCP_MSG_TYPE_RLC;
- memcpy(&rlc->destination_local_reference,
- &connection->destination_local_reference, sizeof(struct sccp_source_reference));
- memcpy(&rlc->source_local_reference,
- &connection->source_local_reference, sizeof(struct sccp_source_reference));
-
- _send_msg(msgb);
-
- /*
- * Remove from the list of active connections and set the state. User code
- * should now free the entry.
- */
- llist_del(&connection->list);
- _sccp_set_connection_state(connection, SCCP_CONNECTION_STATE_RELEASE_COMPLETE);
- return 0;
-}
-
-/* connection released, send a released confirm */
-static int _sccp_handle_connection_released(struct msgb *msgb)
-{
- struct sccp_parse_result result;
- struct sccp_connection *conn;
-
- if (_sccp_parse_connection_released(msgb, &result) == -1)
- return -1;
-
- /* lookup if we have a connection with the given reference */
- llist_for_each_entry(conn, &sccp_connections, list) {
- if (conn->data_cb
- && memcmp(&conn->source_local_reference,
- result.destination_local_reference,
- sizeof(conn->source_local_reference)) == 0
- && memcmp(&conn->destination_local_reference,
- result.source_local_reference,
- sizeof(conn->destination_local_reference)) == 0) {
- goto found;
- }
- }
-
-
- LOGP(DSCCP, LOGL_ERROR, "Unknown connection was released.\n");
- return -1;
-
- /* we have found a connection */
-found:
- /* optional data */
- if (result.data_len != 0 && conn->data_cb) {
- conn->data_cb(conn, msgb, result.data_len);
- }
-
- /* generate a response */
- if (_sccp_send_connection_release_complete(conn) != 0) {
- LOGP(DSCCP, LOGL_ERROR, "Sending release confirmed failed\n");
- return -1;
- }
-
- return 0;
-}
-
-static int _sccp_handle_connection_refused(struct msgb *msgb)
-{
- struct sccp_parse_result result;
- struct sccp_connection *conn;
-
- if (_sccp_parse_connection_refused(msgb, &result) != 0)
- return -1;
-
- /* lookup if we have a connection with the given reference */
- llist_for_each_entry(conn, &sccp_connections, list) {
- if (conn->incoming == 0 && conn->data_cb
- && memcmp(&conn->source_local_reference,
- result.destination_local_reference,
- sizeof(conn->source_local_reference)) == 0) {
- goto found;
- }
- }
-
- LOGP(DSCCP, LOGL_ERROR, "Refused but no connection found\n");
- return -1;
-
-found:
- /* optional data */
- if (result.data_len != 0 && conn->data_cb) {
- conn->data_cb(conn, msgb, result.data_len);
- }
-
-
- llist_del(&conn->list);
- _sccp_set_connection_state(conn, SCCP_CONNECTION_STATE_REFUSED);
- return 0;
-}
-
-static int _sccp_handle_connection_confirm(struct msgb *msgb)
-{
- struct sccp_parse_result result;
- struct sccp_connection *conn;
-
- if (_sccp_parse_connection_confirm(msgb, &result) != 0)
- return -1;
-
- /* lookup if we have a connection with the given reference */
- llist_for_each_entry(conn, &sccp_connections, list) {
- if (conn->incoming == 0 && conn->data_cb
- && memcmp(&conn->source_local_reference,
- result.destination_local_reference,
- sizeof(conn->source_local_reference)) == 0) {
- goto found;
- }
- }
-
- LOGP(DSCCP, LOGL_ERROR, "Confirmed but no connection found\n");
- return -1;
-
-found:
- /* copy the addresses of the connection */
- conn->destination_local_reference = *result.source_local_reference;
- _sccp_set_connection_state(conn, SCCP_CONNECTION_STATE_ESTABLISHED);
-
- /* optional data */
- if (result.data_len != 0 && conn->data_cb) {
- conn->data_cb(conn, msgb, result.data_len);
- }
-
- return 0;
-}
-
-
-int sccp_system_init(void (*outgoing)(struct msgb *data, void *ctx), void *ctx)
-{
- sccp_system.write_data = outgoing;
- sccp_system.write_context = ctx;
-
- return 0;
-}
-
-/* oh my god a real SCCP packet. need to dispatch it now */
-int sccp_system_incoming(struct msgb *msgb)
-{
- if (msgb_l2len(msgb) < 1 ) {
- LOGP(DSCCP, LOGL_ERROR, "Too short packet\n");
- return -1;
- }
-
- int type = msgb->l2h[0];
-
- switch(type) {
- case SCCP_MSG_TYPE_CR:
- return _sccp_handle_connection_request(msgb);
- break;
- case SCCP_MSG_TYPE_RLSD:
- return _sccp_handle_connection_released(msgb);
- break;
- case SCCP_MSG_TYPE_CREF:
- return _sccp_handle_connection_refused(msgb);
- break;
- case SCCP_MSG_TYPE_CC:
- return _sccp_handle_connection_confirm(msgb);
- break;
- case SCCP_MSG_TYPE_RLC:
- return _sccp_handle_connection_release_complete(msgb);
- break;
- case SCCP_MSG_TYPE_DT1:
- return _sccp_handle_connection_dt1(msgb);
- break;
- case SCCP_MSG_TYPE_UDT:
- return _sccp_handle_read(msgb);
- break;
- default:
- LOGP(DSCCP, LOGL_ERROR, "unimplemented msg type: %d\n", type);
- };
-
- return -1;
-}
-
-/* create a packet from the data */
-int sccp_connection_write(struct sccp_connection *connection, struct msgb *data)
-{
- if (connection->connection_state < SCCP_CONNECTION_STATE_CONFIRM
- || connection->connection_state > SCCP_CONNECTION_STATE_ESTABLISHED) {
- LOGP(DSCCP, LOGL_ERROR, "sccp_connection_write: Wrong connection state: %p %d\n",
- connection, connection->connection_state);
- return -1;
- }
-
- return _sccp_send_connection_data(connection, data);
-}
-
-/*
- * Send a Inactivity Test message. The owner of the connection
- * should start a timer and call this method regularily. Calling
- * this every 60 seconds should be good enough.
- */
-int sccp_connection_send_it(struct sccp_connection *connection)
-{
- if (connection->connection_state < SCCP_CONNECTION_STATE_CONFIRM
- || connection->connection_state > SCCP_CONNECTION_STATE_ESTABLISHED) {
- LOGP(DSCCP, LOGL_ERROR, "sccp_connection_write: Wrong connection state: %p %d\n",
- connection, connection->connection_state);
- return -1;
- }
-
- return _sccp_send_connection_it(connection);
-}
-
-/* send a connection release and wait for the connection released */
-int sccp_connection_close(struct sccp_connection *connection, int cause)
-{
- if (connection->connection_state < SCCP_CONNECTION_STATE_CONFIRM
- || connection->connection_state > SCCP_CONNECTION_STATE_ESTABLISHED) {
- LOGP(DSCCP, LOGL_ERROR, "Can not close the connection. It was never opened: %p %d\n",
- connection, connection->connection_state);
- return -1;
- }
-
- return _sccp_send_connection_released(connection, cause);
-}
-
-int sccp_connection_free(struct sccp_connection *connection)
-{
- if (connection->connection_state > SCCP_CONNECTION_STATE_NONE
- && connection->connection_state < SCCP_CONNECTION_STATE_RELEASE_COMPLETE) {
- LOGP(DSCCP, LOGL_ERROR, "The connection needs to be released before it is freed");
- return -1;
- }
-
- talloc_free(connection);
- return 0;
-}
-
-int sccp_connection_force_free(struct sccp_connection *con)
-{
- if (con->connection_state > SCCP_CONNECTION_STATE_NONE &&
- con->connection_state < SCCP_CONNECTION_STATE_RELEASE_COMPLETE)
- llist_del(&con->list);
-
- con->connection_state = SCCP_CONNECTION_STATE_REFUSED;
- sccp_connection_free(con);
- return 0;
-}
-
-struct sccp_connection *sccp_connection_socket(void)
-{
- return talloc_zero(tall_sccp_ctx, struct sccp_connection);
-}
-
-int sccp_connection_connect(struct sccp_connection *conn,
- const struct sockaddr_sccp *local,
- struct msgb *data)
-{
- return _sccp_send_connection_request(conn, local, data);
-}
-
-int sccp_connection_set_incoming(const struct sockaddr_sccp *sock,
- int (*accept_cb)(struct sccp_connection *, void *), void *context)
-{
- struct sccp_data_callback *cb;
-
- if (!sock)
- return -2;
-
- cb = _find_ssn(sock->sccp_ssn);
- if (!cb)
- return -1;
-
- cb->accept_cb = accept_cb;
- cb->accept_context = context;
- return 0;
-}
-
-int sccp_write(struct msgb *data, const struct sockaddr_sccp *in,
- const struct sockaddr_sccp *out, int class)
-{
- return _sccp_send_data(class, in, out, data);
-}
-
-int sccp_set_read(const struct sockaddr_sccp *sock,
- int (*read_cb)(struct msgb *, unsigned int, void *), void *context)
-{
- struct sccp_data_callback *cb;
-
- if (!sock)
- return -2;
-
- cb = _find_ssn(sock->sccp_ssn);
- if (!cb)
- return -1;
-
- cb->read_cb = read_cb;
- cb->read_context = context;
- return 0;
-}
-
-static_assert(sizeof(struct sccp_source_reference) <= sizeof(uint32_t), enough_space);
-
-uint32_t sccp_src_ref_to_int(struct sccp_source_reference *ref)
-{
- uint32_t src_ref = 0;
- memcpy(&src_ref, ref, sizeof(*ref));
- return src_ref;
-}
-
-struct sccp_source_reference sccp_src_ref_from_int(uint32_t int_ref)
-{
- struct sccp_source_reference ref;
- memcpy(&ref, &int_ref, sizeof(ref));
- return ref;
-}
-
-int sccp_determine_msg_type(struct msgb *msg)
-{
- if (msgb_l2len(msg) < 1)
- return -1;
-
- return msg->l2h[0];
-}
-
-int sccp_parse_header(struct msgb *msg, struct sccp_parse_result *result)
-{
- int type;
-
- if (msgb_l2len(msg) < 1)
- return -1;
-
- type = msg->l2h[0];
- switch(type) {
- case SCCP_MSG_TYPE_CR:
- return _sccp_parse_connection_request(msg, result);
- break;
- case SCCP_MSG_TYPE_RLSD:
- return _sccp_parse_connection_released(msg, result);
- break;
- case SCCP_MSG_TYPE_CREF:
- return _sccp_parse_connection_refused(msg, result);
- break;
- case SCCP_MSG_TYPE_CC:
- return _sccp_parse_connection_confirm(msg, result);
- break;
- case SCCP_MSG_TYPE_RLC:
- return _sccp_parse_connection_release_complete(msg, result);
- break;
- case SCCP_MSG_TYPE_DT1:
- return _sccp_parse_connection_dt1(msg, result);
- break;
- case SCCP_MSG_TYPE_UDT:
- return _sccp_parse_udt(msg, result);
- break;
- case SCCP_MSG_TYPE_IT:
- return _sccp_parse_it(msg, result);
- break;
- case SCCP_MSG_TYPE_ERR:
- return _sccp_parse_err(msg, result);
- break;
- };
-
- LOGP(DSCCP, LOGL_ERROR, "Unimplemented MSG Type: 0x%x\n", type);
- return -1;
-}
-
-static __attribute__((constructor)) void on_dso_load(void)
-{
- tall_sccp_ctx = talloc_named_const(NULL, 1, "sccp");
-}
-
-static __attribute__((destructor)) void on_dso_unload(void)
-{
- talloc_report_full(tall_sccp_ctx, stderr);
-}
diff --git a/openbsc/tests/Makefile.am b/openbsc/tests/Makefile.am
index b469832..99ec296 100644
--- a/openbsc/tests/Makefile.am
+++ b/openbsc/tests/Makefile.am
@@ -1 +1,5 @@
-SUBDIRS = debug gsm0408 db channel sccp bsc-nat
+SUBDIRS = debug gsm0408 db channel
+
+if BUILD_NAT
+SUBDIRS += bsc-nat
+endif
diff --git a/openbsc/tests/bsc-nat/Makefile.am b/openbsc/tests/bsc-nat/Makefile.am
index 013a465..f5af721 100644
--- a/openbsc/tests/bsc-nat/Makefile.am
+++ b/openbsc/tests/bsc-nat/Makefile.am
@@ -1,5 +1,5 @@
INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS)
+AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS) $(LIBOSMOSCCP_CFLAGS)
EXTRA_DIST = bsc_data.c
@@ -12,4 +12,4 @@
$(top_srcdir)/src/nat/bsc_mgcp_utils.c \
$(top_srcdir)/src/mgcp/mgcp_protocol.c \
$(top_srcdir)/src/mgcp/mgcp_network.c
-bsc_nat_test_LDADD = $(top_builddir)/src/libbsc.a $(top_builddir)/src/libsccp.a $(LIBOSMOCORE_LIBS) -lrt
+bsc_nat_test_LDADD = $(top_builddir)/src/libbsc.a $(LIBOSMOCORE_LIBS) -lrt $(LIBOSMOSCCP_LIBS)
diff --git a/openbsc/tests/bsc-nat/bsc_nat_test.c b/openbsc/tests/bsc-nat/bsc_nat_test.c
index 6771b31..1b45014 100644
--- a/openbsc/tests/bsc-nat/bsc_nat_test.c
+++ b/openbsc/tests/bsc-nat/bsc_nat_test.c
@@ -29,6 +29,8 @@
#include <osmocore/talloc.h>
+#include <sccp/sccp.h>
+
#include <stdio.h>
/* test messages for ipa */
@@ -699,6 +701,7 @@
{
struct log_target *stderr_target;
+ sccp_set_log_area(DSCCP);
log_init(&log_info);
stderr_target = log_target_create_stderr();
log_add_target(stderr_target);
diff --git a/openbsc/tests/sccp/Makefile.am b/openbsc/tests/sccp/Makefile.am
deleted file mode 100644
index b35693e..0000000
--- a/openbsc/tests/sccp/Makefile.am
+++ /dev/null
@@ -1,8 +0,0 @@
-INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS)
-
-noinst_PROGRAMS = sccp_test
-
-sccp_test_SOURCES = sccp_test.c
-sccp_test_LDADD = $(top_builddir)/src/libsccp.a $(top_builddir)/src/libbsc.a $(LIBOSMOCORE_LIBS)
-
diff --git a/openbsc/tests/sccp/sccp_test.c b/openbsc/tests/sccp/sccp_test.c
deleted file mode 100644
index 3b9ef4e..0000000
--- a/openbsc/tests/sccp/sccp_test.c
+++ /dev/null
@@ -1,851 +0,0 @@
-/*
- * SCCP testing code
- *
- * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009 by On-Waves
- *
- * 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.
- *
- */
-
-#include <stdio.h>
-
-#include <arpa/inet.h>
-
-#include <openbsc/gsm_data.h>
-#include <openbsc/debug.h>
-#include <osmocore/msgb.h>
-
-#include <sccp/sccp.h>
-
-#define MIN(x, y) ((x) < (y) ? (x) : (y))
-
-/* BSC -> MSC */
-static const uint8_t bssmap_reset[] = {
- 0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe,
- 0x02, 0x42, 0xfe, 0x06, 0x00, 0x04, 0x30, 0x04,
- 0x01, 0x20,
-};
-
-/* MSC -> BSC reset ack */
-static const uint8_t bssmap_reset_ack[] = {
- 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01,
- 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x03,
- 0x00, 0x01, 0x31,
-};
-
-/* MSC -> BSC paging, connection less */
-static const uint8_t bssmap_paging[] = {
- 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01,
- 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x10,
- 0x00, 0x0e, 0x52, 0x08, 0x08, 0x29, 0x47, 0x10,
- 0x02, 0x01, 0x31, 0x97, 0x61, 0x1a, 0x01, 0x06,
-};
-
-/* MSC -> BSC paging, UDT without PC */
-static const uint8_t bssmap_udt[] = {
- 0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe,
- 0x02, 0x42, 0xfe, 0x10, 0x00, 0x0e, 0x52, 0x08,
- 0x08, 0x29, 0x47, 0x10, 0x02, 0x01, 0x31, 0x97,
- 0x61, 0x1a, 0x01, 0x06,
-};
-
-/* BSC -> MSC connection open */
-static const uint8_t bssmap_cr[] = {
- 0x01, 0x01, 0x02, 0x03, 0x02, 0x02, 0x04, 0x02,
- 0x42, 0xfe, 0x0f, 0x1f, 0x00, 0x1d, 0x57, 0x05,
- 0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x12, 0xc3,
- 0x50, 0x17, 0x10, 0x05, 0x24, 0x11, 0x03, 0x33,
- 0x19, 0xa2, 0x08, 0x29, 0x47, 0x10, 0x02, 0x01,
- 0x31, 0x97, 0x61, 0x00
-};
-
-/* MSC -> BSC connection confirm */
-static const uint8_t bssmap_cc[] = {
- 0x02, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00,
-};
-
-/* MSC -> BSC DTAP
- *
- * we fake a bit and make it BSC -> MSC... so the
- * payload does not make any sense..
- */
-static const uint8_t bssmap_dtap[] = {
- 0x06, 0x00, 0x00, 0x03, 0x00, 0x01, 0x0f, 0x01, 0x00, 0x0c,
- 0x03, 0x05, 0x5c, 0x08, 0x11, 0x81, 0x33, 0x66, 0x02, 0x13,
- 0x45, 0xf4,
-};
-
-/* MSC -> BSC clear command */
-static const uint8_t bssmap_clear[] = {
- 0x06, 0x00, 0x00, 0x03, 0x00, 0x01, 0x06, 0x00, 0x04, 0x20,
- 0x04, 0x01, 0x09,
-};
-
-/* MSC -> BSC released */
-static const uint8_t bssmap_released[] = {
- 0x04, 0x00, 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x01, 0x0f,
- 0x02, 0x23, 0x42, 0x00,
-};
-
-/* BSC -> MSC released */
-static const uint8_t bssmap_release_complete[] = {
- 0x05, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03
-};
-
-struct test_data {
- int length;
- const uint8_t *data;
- int payload_start;
- int payload_length;
- uint8_t first_byte;
-
- /* in case it should trigger a sccp response */
- int write;
- const uint8_t *response;
- int response_length;
-};
-
-static const struct test_data test_data[] = {
- {
- .length = ARRAY_SIZE(bssmap_reset),
- .data = &bssmap_reset[0],
- .payload_start = 12,
- .payload_length = ARRAY_SIZE(bssmap_reset) - 12,
- .first_byte = 0x0,
- },
- {
- .length = ARRAY_SIZE(bssmap_reset_ack),
- .data = &bssmap_reset_ack[0],
- .payload_start = 16,
- .payload_length = ARRAY_SIZE(bssmap_reset_ack) - 16,
- .first_byte = 0x0,
- },
- {
- .length = ARRAY_SIZE(bssmap_paging),
- .data = &bssmap_paging[0],
- .payload_start = 16,
- .payload_length = ARRAY_SIZE(bssmap_paging) - 16,
- .first_byte = 0x0,
- },
- {
- .length = ARRAY_SIZE(bssmap_cr),
- .data = &bssmap_cr[0],
- .payload_start = 12,
- /* 0x00 is end of optional data, subtract this byte */
- .payload_length = 31,
- .first_byte = 0x0,
-
- /* the connection request should trigger a connection confirm */
- .write = 1,
- .response = &bssmap_cc[0],
- .response_length= ARRAY_SIZE(bssmap_cc),
- },
- {
- .length = ARRAY_SIZE(bssmap_dtap),
- .data = &bssmap_dtap[0],
- .payload_start = 7,
- .payload_length = 15,
- .first_byte = 0x01,
- },
- {
- .length = ARRAY_SIZE(bssmap_clear),
- .data = &bssmap_clear[0],
- .payload_start = 7,
- .payload_length = 6,
- .first_byte = 0x00,
- },
- {
- .length = ARRAY_SIZE(bssmap_released),
- .data = &bssmap_released[0],
- .payload_length = 2,
- .payload_start = 11,
- .first_byte = 0x23,
-
- .write = 1,
- .response = &bssmap_release_complete[0],
- .response_length= ARRAY_SIZE(bssmap_release_complete),
- },
-};
-
-/* we will send UDTs and verify they look like this */
-static const struct test_data send_data[] = {
- {
- .length = ARRAY_SIZE(bssmap_udt),
- .data = &bssmap_udt[0],
- .payload_start = 12,
- .payload_length = ARRAY_SIZE(bssmap_udt) - 12,
- .first_byte = 0x0,
- },
- {
- .length = ARRAY_SIZE(bssmap_reset),
- .data = &bssmap_reset[0],
- .payload_start = 12,
- .payload_length = ARRAY_SIZE(bssmap_reset) - 12,
- .first_byte = 0x0,
- },
-};
-
-struct connection_test {
- /* should the connection be refused? */
- int refuse;
-
- int with_data;
-
- /* on which side to close the connection? */
- int close_side;
- int close_cause;
-};
-
-/* sccp connection handling we want to test */
-static const struct connection_test connection_tests[] = {
- {
- .refuse = 1,
- },
- {
- .refuse = 1,
- .with_data = 1,
- },
- {
- .refuse = 0,
- .close_side = 0,
- .close_cause = 5,
- },
- {
- .refuse = 0,
- .close_side = 0,
- .close_cause = 5,
- .with_data = 1,
- },
- {
- .refuse = 0,
- .close_side = 1,
- .close_cause = 5,
- },
- {
- .refuse = 0,
- .close_side = 1,
- .close_cause = 5,
- .with_data = 1,
- },
-};
-
-struct sccp_parse_header_result {
- /* results */
- int msg_type;
- int wanted_len;
- int src_ssn;
- int dst_ssn;
-
- int has_src_ref, has_dst_ref;
- struct sccp_source_reference src_ref;
- struct sccp_source_reference dst_ref;
-
- /* the input */
- const uint8_t *input;
- int input_len;
-};
-
-static const uint8_t it_test[] = {
-0x10, 0x01, 0x07,
-0x94, 0x01, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00 };
-
-static const uint8_t proto_err[] = {
-0x0f, 0x0c, 0x04, 0x00, 0x00,
-};
-
-static const struct sccp_parse_header_result parse_result[] = {
- {
- .msg_type = SCCP_MSG_TYPE_IT,
- .wanted_len = 0,
- .src_ssn = -1,
- .dst_ssn = -1,
- .has_src_ref = 1,
- .has_dst_ref = 1,
-
- .src_ref = {
- .octet1 = 0x01,
- .octet2 = 0x04,
- .octet3 = 0x00
- },
- .dst_ref = {
- .octet1 = 0x01,
- .octet2 = 0x07,
- .octet3 = 0x94,
- },
-
- .input = it_test,
- .input_len = sizeof(it_test),
- },
- {
- .msg_type = SCCP_MSG_TYPE_ERR,
- .wanted_len = 0,
- .src_ssn = -1,
- .dst_ssn = -1,
- .has_src_ref = 0,
- .has_dst_ref = 1,
- .dst_ref = {
- .octet1 = 0x0c,
- .octet2 = 0x04,
- .octet3 = 0x00,
- },
- .input = proto_err,
- .input_len = sizeof(proto_err),
- },
-};
-
-
-/* testing procedure:
- * - we will use sccp_write and see what will be set in the
- * outgoing callback
- * - we will call sccp_system_incoming and see which calls
- * are made. And then compare it to the ones we expect. We
- * want the payload to arrive, or callbacks to be called.
- * - we will use sccp_connection_socket and sccp_connection_write
- * and verify state handling of connections
- */
-
-static int current_test;
-
-/*
- * test state...
- */
-static int called = 0;
-static int matched = 0;
-static int write_called = 0;
-
-#define FAIL(x, args...) printf("FAILURE in %s:%d: " x, __FILE__, __LINE__, ## args)
-
-/*
- * writing these packets and expecting a result
- */
-int sccp_read_cb(struct msgb *data, unsigned len, void *context)
-{
- uint16_t payload_length = test_data[current_test].payload_length;
- const uint8_t *got, *wanted;
- int i;
-
- called = 1;
-
- if (msgb_l3len(data) < len) {
- /* this should never be reached */
- FAIL("Something horrible happened.. invalid packet..\n");
- exit(-1);
- }
-
- if (len == 0 || len != payload_length) {
- FAIL("length mismatch: got: %d wanted: %d\n", msgb_l3len(data), payload_length);
- return -1;
- }
-
- if (data->l3h[0] != test_data[current_test].first_byte) {
- FAIL("The first bytes of l3 do not match: 0x%x 0x%x\n",
- data->l3h[0], test_data[current_test].first_byte);
- return -1;
- }
-
- got = &data->l3h[0];
- wanted = test_data[current_test].data + test_data[current_test].payload_start;
-
- for (i = 0; i < len; ++i) {
- if (got[i] != wanted[i]) {
- FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n",
- got[i], wanted[i], i);
- return -1;
- }
- }
-
- matched = 1;
- return 0;
-}
-
-void sccp_write_cb(struct msgb *data, void *ctx)
-{
- int i = 0;
- const uint8_t *got, *wanted;
-
- if (test_data[current_test].response == NULL) {
- FAIL("Didn't expect write callback\n");
- goto exit;
- } else if (test_data[current_test].response_length != msgb_l2len(data)) {
- FAIL("Size does not match. Got: %d Wanted: %d\n",
- msgb_l2len(data), test_data[current_test].response_length);
- }
-
- got = &data->l2h[0];
- wanted = test_data[current_test].response;
-
- for (i = 0; i < msgb_l2len(data); ++i) {
- if (got[i] != wanted[i]) {
- FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n",
- got[i], wanted[i], i);
- goto exit;
- }
- }
-
- write_called = 1;
-
-exit:
- msgb_free(data);
-}
-
-void sccp_c_read(struct sccp_connection *connection, struct msgb *msgb, unsigned int len)
-{
- sccp_read_cb(msgb, len, connection->data_ctx);
-}
-
-void sccp_c_state(struct sccp_connection *connection, int old_state)
-{
- if (connection->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE)
- sccp_connection_free(connection);
-}
-
-int sccp_accept_cb(struct sccp_connection *connection, void *user_data)
-{
- called = 1;
- unsigned int ref = 0;
- ref |= connection->destination_local_reference.octet1 << 24;
- ref |= connection->destination_local_reference.octet2 << 16;
- ref |= connection->destination_local_reference.octet3 << 8;
- ref = ntohl(ref);
-
- connection->data_cb = sccp_c_read;
- connection->state_cb = sccp_c_state;
-
- /* accept this */
- return 0;
-}
-
-static void sccp_udt_write_cb(struct msgb *data, void *context)
-{
- const uint8_t *got, *wanted;
- int i;
-
- write_called = 1;
-
- if (send_data[current_test].length != msgb_l2len(data)) {
- FAIL("Size does not match. Got: %d Wanted: %d\n",
- msgb_l2len(data), send_data[current_test].length);
- goto exit;
- }
-
- got = &data->l2h[0];
- wanted = send_data[current_test].data;
-
- for (i = 0; i < msgb_l2len(data); ++i) {
- if (got[i] != wanted[i]) {
- FAIL("Failed to compare byte. Got: 0x%x Wanted: 0x%x at %d\n",
- got[i], wanted[i], i);
- goto exit;
- }
- }
-
- matched = 1;
-
-exit:
- msgb_free(data);
-}
-
-static void test_sccp_system(void)
-{
- sccp_system_init(sccp_write_cb, NULL);
- sccp_set_read(&sccp_ssn_bssap, sccp_read_cb, NULL);
- sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_accept_cb, NULL);
-
- for (current_test = 0; current_test < ARRAY_SIZE(test_data); ++current_test) {
- unsigned int length = test_data[current_test].length;
- struct msgb *msg = msgb_alloc_headroom(length + 2, 2, __func__);
- msg->l2h = msgb_put(msg, length);
- memcpy(msg->l2h, test_data[current_test].data, length);
-
- called = matched = write_called = 0;
- printf("Testing packet: %d\n", current_test);
- sccp_system_incoming(msg);
-
- if (!called || !matched || (test_data[current_test].write != write_called))
- FAIL("current test: %d called: %d matched: %d write: %d\n",
- current_test, called, matched, write_called);
-
- msgb_free(msg);
- }
-}
-
-/* test sending of udt */
-static void test_sccp_send_udt(void)
-{
- sccp_system_init(sccp_udt_write_cb, NULL);
- sccp_set_read(NULL, NULL, NULL);
- sccp_connection_set_incoming(NULL, NULL, NULL);
-
- for (current_test = 0; current_test < ARRAY_SIZE(send_data); ++current_test) {
- const struct test_data *test = &send_data[current_test];
-
- struct msgb *msg = msgb_alloc(test->payload_length, __func__);
- msg->l3h = msgb_put(msg, test->payload_length);
- memcpy(msg->l3h, test->data + test->payload_start, test->payload_length);
-
- matched = write_called = 0;
- printf("Testing packet: %d\n", current_test);
- sccp_write(msg, &sccp_ssn_bssap, &sccp_ssn_bssap, 0);
-
- if (!matched || !write_called)
- FAIL("current test: %d matched: %d write: %d\n",
- current_test, matched, write_called);
-
- msgb_free(msg);
- }
-}
-
-/* send udt from one end to another */
-static unsigned int test_value = 0x2442;
-static int sccp_udt_read(struct msgb *data, unsigned int len, void *context)
-{
- unsigned int *val;
-
- if (len != 4) {
- FAIL("Wrong size: %d\n", msgb_l3len(data));
- return -1;
- }
-
- val = (unsigned int*)data->l3h;
- matched = test_value == *val;
-
- return 0;
-}
-
-static void sccp_write_loop(struct msgb *data, void *context)
-{
- /* send it back to us */
- sccp_system_incoming(data);
- msgb_free(data);
-}
-
-static void test_sccp_udt_communication(void)
-{
- struct msgb *data;
- unsigned int *val;
-
- sccp_system_init(sccp_write_loop, NULL);
- sccp_set_read(&sccp_ssn_bssap, sccp_udt_read, NULL);
- sccp_connection_set_incoming(NULL, NULL, NULL);
-
-
- data = msgb_alloc(4, "test data");
- data->l3h = &data->data[0];
- val = (unsigned int *)msgb_put(data, 4);
- *val = test_value;
-
- matched = 0;
- sccp_write(data, &sccp_ssn_bssap, &sccp_ssn_bssap, 0);
-
- if (!matched)
- FAIL("Talking with us didn't work\n");
-
- msgb_free(data);
-}
-
-
-/* connection testing... open, send, close */
-static const struct connection_test *current_con_test;
-static struct sccp_connection *outgoing_con;
-static struct sccp_connection *incoming_con;
-static int outgoing_data, incoming_data, incoming_state, outgoing_state;
-
-static struct msgb *test_data1, *test_data2, *test_data3;
-
-static void sccp_conn_in_state(struct sccp_connection *conn, int old_state)
-{
- printf("\tincome: %d -> %d\n", old_state, conn->connection_state);
- if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) {
- if (conn == incoming_con) {
- sccp_connection_free(conn);
- incoming_con = NULL;
- }
- }
-}
-
-static void sccp_conn_in_data(struct sccp_connection *conn, struct msgb *msg, unsigned int len)
-{
- /* compare the data */
- ++incoming_data;
- printf("\tincoming data: %d\n", len);
-
- /* compare the data */
- if (len != 4) {
- FAIL("Length of packet is wrong: %u %u\n", msgb_l3len(msg), len);
- return;
- }
-
- if (incoming_data == 1) {
- if (memcmp(msg->l3h, test_data1->l3h, len) != 0) {
- FAIL("Comparing the data failed: %d\n", incoming_data);
- incoming_state = 0;
- printf("Got: %s\n", hexdump(msg->l3h, len));
- printf("Wanted: %s\n", hexdump(test_data1->l3h, len));
-
- }
- } else if (incoming_data == 2) {
- if (memcmp(msg->l3h, test_data2->l3h, len) != 0) {
- FAIL("Comparing the data failed: %d\n", incoming_data);
- incoming_state = 0;
- printf("Got: %s\n", hexdump(msg->l3h, len));
- printf("Wanted: %s\n", hexdump(test_data2->l3h, len));
- }
- }
-
- /* sending out data */
- if (incoming_data == 2) {
- printf("\tReturning data3\n");
- sccp_connection_write(conn, test_data3);
- }
-}
-
-static int sccp_conn_accept(struct sccp_connection *conn, void *ctx)
-{
- printf("\taccept: %p\n", conn);
- conn->state_cb = sccp_conn_in_state;
- conn->data_cb = sccp_conn_in_data;
-
- if (current_con_test->refuse)
- return -1;
-
- incoming_con = conn;
- return 0;
-}
-
-/* callbacks for the outgoing side */
-static void sccp_conn_out_state(struct sccp_connection *conn, int old_state)
-{
- printf("\toutgoing: %p %d -> %d\n", conn, old_state, conn->connection_state);
-
- if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) {
- if (conn == outgoing_con) {
- sccp_connection_free(conn);
- outgoing_con = NULL;
- }
- }
-}
-
-static void sccp_conn_out_data(struct sccp_connection *conn, struct msgb *msg, unsigned int len)
-{
- ++outgoing_data;
- printf("\toutgoing data: %p %d\n", conn, len);
-
- if (len != 4)
- FAIL("Length of packet is wrong: %u %u\n", msgb_l3len(msg), len);
-
- if (outgoing_data == 1) {
- if (memcmp(msg->l3h, test_data3->l3h, len) != 0) {
- FAIL("Comparing the data failed\n");
- outgoing_state = 0;
- }
- }
-}
-
-static void do_test_sccp_connection(const struct connection_test *test)
-{
- int ret;
-
- current_con_test = test;
- outgoing_con = incoming_con = 0;
-
- outgoing_con = sccp_connection_socket();
- if (!outgoing_con) {
- FAIL("Connection is NULL\n");
- return;
- }
-
- outgoing_con->state_cb = sccp_conn_out_state;
- outgoing_con->data_cb = sccp_conn_out_data;
- outgoing_data = incoming_data = 0;
- incoming_state = outgoing_state = 1;
-
- /* start testing */
- if (test->with_data) {
- if (sccp_connection_connect(outgoing_con, &sccp_ssn_bssap, test_data1) != 0)
- FAIL("Binding failed\n");
- } else {
- ++incoming_data;
- if (sccp_connection_connect(outgoing_con, &sccp_ssn_bssap, NULL) != 0)
- FAIL("Binding failed\n");
- }
-
- if (test->refuse) {
- if (outgoing_con)
- FAIL("Outgoing connection should have been refused.\n");
- } else {
- if (!incoming_con)
- FAIL("Creating incoming didn't work.\n");
-
- printf("\tWriting test data2\n");
- sccp_connection_write(outgoing_con, test_data2);
- sccp_connection_send_it(outgoing_con);
-
- /* closing connection */
- if (test->close_side == 0)
- ret = sccp_connection_close(outgoing_con, 0);
- else
- ret = sccp_connection_close(incoming_con, 0);
-
- if (ret != 0)
- FAIL("Closing the connection failed\n");
- }
-
- /* outgoing should be gone now */
- if (outgoing_con)
- FAIL("Outgoing connection was not properly closed\n");
-
- if (incoming_con)
- FAIL("Incoming connection was not propery closed.\n");
-
- if (test->refuse == 0) {
- if (outgoing_data != 1 || incoming_data != 2) {
- FAIL("Data sending failed: %d/%d %d/%d\n",
- outgoing_data, 1,
- incoming_data, 2);
- }
- }
-
- if (!incoming_state || !outgoing_state)
- FAIL("Failure with the state transition. %d %d\n",
- outgoing_state, incoming_state);
-}
-
-static void test_sccp_connection(void)
-{
- sccp_system_init(sccp_write_loop, NULL);
- sccp_set_read(NULL, NULL, NULL);
- sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_conn_accept, NULL);
-
- test_data1 = msgb_alloc(4, "data1");
- test_data1->l3h = msgb_put(test_data1, 4);
- *((unsigned int*)test_data1->l3h) = 0x23421122;
-
- test_data2 = msgb_alloc(4, "data2");
- test_data2->l3h = msgb_put(test_data2, 4);
- *((unsigned int*)test_data2->l3h) = 0x42232211;
-
- test_data3 = msgb_alloc(4, "data3");
- test_data3->l3h = msgb_put(test_data3, 4);
- *((unsigned int*)test_data3->l3h) = 0x2323ff55;
-
-
- for (current_test = 0; current_test < ARRAY_SIZE(connection_tests); ++current_test) {
- printf("Testing %d refuse: %d with_data: %d\n",
- current_test, connection_tests[current_test].refuse,
- connection_tests[current_test].with_data);
- do_test_sccp_connection(&connection_tests[current_test]);
- }
-
- msgb_free(test_data1);
- msgb_free(test_data2);
- msgb_free(test_data3);
-}
-
-/* invalid input */
-static void test_sccp_system_crash(void)
-{
- printf("trying to provoke a crash with invalid input\n");
- sccp_set_read(&sccp_ssn_bssap, sccp_read_cb, NULL);
- sccp_connection_set_incoming(&sccp_ssn_bssap, sccp_accept_cb, NULL);
-
- for (current_test = 0; current_test < ARRAY_SIZE(test_data); ++current_test) {
- int original_length = test_data[current_test].length;
- int length = original_length + 2;
- int i;
-
- printf("Testing packet: %d\n", current_test);
-
- for (i = length; i >= 0; --i) {
- unsigned int length = MIN(test_data[current_test].length, i);
- struct msgb *msg = msgb_alloc_headroom(length + 2, 2, __func__);
- msg->l2h = msgb_put(msg, length);
- memcpy(msg->l2h, test_data[current_test].data, length);
- sccp_system_incoming(msg);
- msgb_free(msg);
- }
- }
-
- printf("survived\n");
-}
-
-static void test_sccp_parsing(void)
-{
- for (current_test = 0; current_test < ARRAY_SIZE(parse_result); ++current_test) {
- struct msgb *msg;
- struct sccp_parse_result result;
-
- msg = msgb_alloc_headroom(1024, 128, "parse-test");
- msgb_put(msg, 1);
- msg->l2h = msgb_put(msg, parse_result[current_test].input_len);
- memcpy(msg->l2h, parse_result[current_test].input, msgb_l2len(msg));
-
- memset(&result, 0, sizeof(result));
- if (sccp_parse_header(msg, &result) != 0) {
- fprintf(stderr, "Failed to sccp parse test: %d\n", current_test);
- } else {
- if (parse_result[current_test].wanted_len != result.data_len) {
- fprintf(stderr, "Unexpected data length.\n");
- abort();
- }
-
- if (parse_result[current_test].has_src_ref) {
- if (memcmp(result.source_local_reference,
- &parse_result[current_test].src_ref,
- sizeof(struct sccp_source_reference)) != 0) {
- fprintf(stderr, "SRC REF did not match\n");
- abort();
- }
- }
-
- if (parse_result[current_test].has_dst_ref) {
- if (memcmp(result.destination_local_reference,
- &parse_result[current_test].dst_ref,
- sizeof(struct sccp_source_reference)) != 0) {
- fprintf(stderr, "DST REF did not match\n");
- abort();
- }
- }
-
- if (parse_result[current_test].src_ssn != -1) {
- fprintf(stderr, "Not implemented.\n");
- abort();
- }
-
- if (parse_result[current_test].dst_ssn != -1) {
- fprintf(stderr, "Not implemented.\n");
- abort();
- }
- }
-
- msgb_free(msg);
- }
-}
-
-
-int main(int argc, char **argv)
-{
- test_sccp_system();
- test_sccp_send_udt();
- test_sccp_udt_communication();
- test_sccp_connection();
- test_sccp_system_crash();
- test_sccp_parsing();
- return 0;
-}
-
-void db_store_counter() {}