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laforge gerrit-no-reply at lists.osmocom.orglaforge has submitted this change. ( https://gerrit.osmocom.org/c/libosmocore/+/6357 )
Change subject: Introduce CRC and FSM for IuUP (user plane) as used in 3G RTP data
......................................................................
Introduce CRC and FSM for IuUP (user plane) as used in 3G RTP data
Only support for SMpSDU mode is introduced in this commit.
Not supported explicit list:
- Transparent mode
- ATM/AAL2 based Transport layer
- GTP-U based Transport Layer
- Iu Rate Control procedure
- Time Alignment procedure
APIs are provided to allocate the primitives properly inside the related
msgb. This way primitives can be placed in the headroom, leaving the
data part of the msgb for the IuUP payload, hence allowing re-use of the
msgb and 0 copy of IuUP payload when forwarding data over RNL<->TNL.
Since RNL and TNL primitives relu struct osmo_prim_header, which is not
packed, they cannot be set to packed, and hence proper memory alignment
in the msgb must be done to avoid misaligned accesses (Asan errors about
it otherwise).
Related: SYS#5516
Change-Id: Ibe356fa7b1abaca0091e368db8478e79c09c6cb0
---
M include/Makefile.am
M include/osmocom/core/logging.h
A include/osmocom/gsm/iuup.h
M include/osmocom/gsm/prim.h
A include/osmocom/gsm/protocol/gsm_25_415.h
M src/gsm/Makefile.am
A src/gsm/iuup.c
M src/gsm/libosmogsm.map
M src/logging.c
M tests/Makefile.am
A tests/iuup/iuup_test.c
A tests/iuup/iuup_test.ok
M tests/logging/logging_vty_test.vty
M tests/testsuite.at
14 files changed, 1,980 insertions(+), 4 deletions(-)
Approvals:
Jenkins Builder: Verified
osmith: Looks good to me, but someone else must approve
laforge: Looks good to me, approved
diff --git a/include/Makefile.am b/include/Makefile.am
index e3246cf..eab0489 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -125,6 +125,7 @@
osmocom/gsm/gsup_sms.h \
osmocom/gsm/i460_mux.h \
osmocom/gsm/ipa.h \
+ osmocom/gsm/iuup.h \
osmocom/gsm/lapd_core.h \
osmocom/gsm/lapdm.h \
osmocom/gsm/meas_rep.h \
@@ -148,6 +149,7 @@
osmocom/gsm/protocol/gsm_12_21.h \
osmocom/gsm/protocol/gsm_23_003.h \
osmocom/gsm/protocol/gsm_23_041.h \
+ osmocom/gsm/protocol/gsm_25_415.h \
osmocom/gsm/protocol/gsm_29_118.h \
osmocom/gsm/protocol/gsm_44_004.h \
osmocom/gsm/protocol/gsm_44_318.h \
diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h
index 18ad3ff..7907734 100644
--- a/include/osmocom/core/logging.h
+++ b/include/osmocom/core/logging.h
@@ -136,7 +136,8 @@
#define DLBSSGP -21 /*!< Osmocom BSSGP layer */
#define DLNSDATA -22 /*!< Osmocom NS layer data pdus */
#define DLNSSIGNAL -23 /*!< Osmocom NS layer signal pdus */
-#define OSMO_NUM_DLIB 23 /*!< Number of logging sub-systems in libraries */
+#define DLIUUP -24 /*!< Osmocom IuUP layer */
+#define OSMO_NUM_DLIB 24 /*!< Number of logging sub-systems in libraries */
/* Colors that can be used in log_info_cat.color */
#define OSMO_LOGCOLOR_NORMAL NULL
diff --git a/include/osmocom/gsm/iuup.h b/include/osmocom/gsm/iuup.h
new file mode 100644
index 0000000..b1651c5
--- /dev/null
+++ b/include/osmocom/gsm/iuup.h
@@ -0,0 +1,122 @@
+#pragma once
+
+#include <stdint.h>
+
+#include <osmocom/core/prim.h>
+#include <osmocom/gsm/protocol/gsm_25_415.h>
+
+/***********************************************************************
+ * Primitives towards the lower layers (typically RTP transport)
+ ***********************************************************************/
+enum osmo_iuup_tnl_prim_type {
+ OSMO_IUUP_TNL_UNITDATA,
+};
+
+struct osmo_iuup_tnl_prim {
+ struct osmo_prim_hdr oph;
+};
+
+/***********************************************************************
+ * Primitives towards the upper layers at the RNL SAP
+ ***********************************************************************/
+
+/* 3GPP TS 25.415 Section 7.2.1 */
+enum osmo_iuup_rnl_prim_type {
+ OSMO_IUUP_RNL_CONFIG,
+ OSMO_IUUP_RNL_DATA,
+ OSMO_IUUP_RNL_STATUS,
+ OSMO_IUUP_RNL_UNIT_DATA,
+};
+
+/* TS 25.413 9.2.1.3*/
+#define IUUP_MAX_SUBFLOWS 7
+#define IUUP_MAX_RFCIS 64
+
+#define IUUP_TIMER_INIT_T_DEFAULT 1000
+#define IUUP_TIMER_TA_T_DEFAULT 500
+#define IUUP_TIMER_RC_T_DEFAULT 500
+#define IUUP_TIMER_INIT_N_DEFAULT 3
+#define IUUP_TIMER_TA_N_DEFAULT 1
+#define IUUP_TIMER_RC_N_DEFAULT 1
+struct osmo_iuup_rnl_config_timer {
+ uint32_t t_ms; /* time in ms */
+ uint32_t n_max; /* max number of repetitions */
+};
+struct osmo_iuup_rnl_config {
+ /* transparent (true) or SMpSDU (false): */
+ bool transparent;
+
+ /* should we actively transmit INIT in SmpSDU mode? */
+ bool active;
+
+ /* Currently Version 0 or 1: */
+ uint8_t data_pdu_type;
+
+ /* Supported mode versions */
+ uint16_t supported_versions_mask;
+ uint8_t num_rfci;
+ uint8_t num_subflows;
+ uint16_t subflow_sizes[IUUP_MAX_RFCIS][IUUP_MAX_SUBFLOWS];
+ bool IPTIs_present;
+ uint8_t IPTIs[IUUP_MAX_RFCIS]; /* values range 0-15, 4 bits */
+
+ /* TODO: Indication of delivery of erroneous SDUs*/
+ struct osmo_iuup_rnl_config_timer t_init;
+ struct osmo_iuup_rnl_config_timer t_ta;
+ struct osmo_iuup_rnl_config_timer t_rc;
+};
+
+struct osmo_iuup_rnl_data {
+ uint8_t rfci;
+ uint8_t frame_nr;
+ uint8_t fqc;
+};
+
+struct osmo_iuup_rnl_status {
+ enum iuup_procedure procedure;
+ union {
+ struct {
+ enum iuup_error_cause cause;
+ enum iuup_error_distance distance;
+ } error_event;
+ struct {
+ uint16_t supported_versions_mask;
+ uint8_t num_subflows;
+ uint8_t num_rfci;
+ uint16_t subflow_sizes[IUUP_MAX_RFCIS][IUUP_MAX_SUBFLOWS];
+ bool IPTIs_present;
+ uint8_t IPTIs[IUUP_MAX_RFCIS]; /* values range 0-15, 4 bits */
+ } initialization;
+ struct {
+ } rate_control;
+ struct {
+ } time_alignment;
+ } u;
+};
+
+/* SAP on the upper side of IuUP, towards the user */
+struct osmo_iuup_rnl_prim {
+ struct osmo_prim_hdr oph;
+ union {
+ struct osmo_iuup_rnl_config config;
+ struct osmo_iuup_rnl_data data;
+ struct osmo_iuup_rnl_status status;
+ //struct osmo_iuup_rnl_unitdata unitdata;
+ } u;
+};
+
+struct osmo_iuup_instance;
+struct osmo_iuup_instance *osmo_iuup_instance_alloc(void *ctx, const char *id);
+void osmo_iuup_instance_free(struct osmo_iuup_instance *iui);
+
+void osmo_iuup_instance_set_user_prim_cb(struct osmo_iuup_instance *iui, osmo_prim_cb func, void *priv);
+void osmo_iuup_instance_set_transport_prim_cb(struct osmo_iuup_instance *iui, osmo_prim_cb func, void *priv);
+int osmo_iuup_tnl_prim_up(struct osmo_iuup_instance *iui, struct osmo_iuup_tnl_prim *itp);
+int osmo_iuup_rnl_prim_down(struct osmo_iuup_instance *inst, struct osmo_iuup_rnl_prim *irp);
+
+
+int osmo_iuup_compute_header_crc(const uint8_t *iuup_pdu, unsigned int pdu_len);
+int osmo_iuup_compute_payload_crc(const uint8_t *iuup_pdu, unsigned int pdu_len);
+
+struct osmo_iuup_rnl_prim *osmo_iuup_rnl_prim_alloc(void *ctx, unsigned int primitive, unsigned int operation, unsigned int size);
+struct osmo_iuup_tnl_prim *osmo_iuup_tnl_prim_alloc(void *ctx, unsigned int primitive, unsigned int operation, unsigned int size);
diff --git a/include/osmocom/gsm/prim.h b/include/osmocom/gsm/prim.h
index 045e353..73cd7f7 100644
--- a/include/osmocom/gsm/prim.h
+++ b/include/osmocom/gsm/prim.h
@@ -18,4 +18,7 @@
SAP_NS,
SAP_BSSGP_RIM,
+
+ SAP_IUUP_TNL,
+ SAP_IUUP_RNL,
};
diff --git a/include/osmocom/gsm/protocol/gsm_25_415.h b/include/osmocom/gsm/protocol/gsm_25_415.h
new file mode 100644
index 0000000..5d90fd3
--- /dev/null
+++ b/include/osmocom/gsm/protocol/gsm_25_415.h
@@ -0,0 +1,222 @@
+#pragma once
+/* Iu User Plane (IuUP) Definitions as per 3GPP TS 25.415 */
+/* (C) 2017 by Harald Welte <laforge at gnumonks.org>
+ * All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <stdint.h>
+#include <osmocom/core/endian.h>
+
+/* 3GPP TS 25.415 Section 6.6.2.1 */
+struct iuup_pdutype0_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
+ /* control part */
+ uint8_t frame_nr:4,
+ pdu_type:4;
+ uint8_t rfci:6,
+ fqc:2;
+ /* checksum part */
+ uint8_t payload_crc_hi:2, header_crc:6;
+ uint8_t payload_crc_lo;
+
+ /* payload part */
+ uint8_t payload[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t pdu_type:4, frame_nr:4;
+ uint8_t fqc:2, rfci:6;
+ uint8_t header_crc:6, payload_crc_hi:2;
+ uint8_t payload_crc_lo;
+ uint8_t payload[0];
+#endif
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2.2 */
+struct iuup_pdutype1_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
+ /* control part */
+ uint8_t frame_nr:4,
+ pdu_type:4;
+ uint8_t rfci:6,
+ fqc:2;
+ /* checksum part */
+ uint8_t spare:2,
+ header_crc:6;
+ /* payload part */
+ uint8_t payload[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t pdu_type:4, frame_nr:4;
+ uint8_t fqc:2, rfci:6;
+ uint8_t header_crc:6, spare:2;
+ uint8_t payload[0];
+#endif
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2.3 */
+struct iuup_pdutype14_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
+ /* control part */
+ uint8_t frame_nr:2,
+ ack_nack:2,
+ pdu_type:4;
+ uint8_t proc_ind:4,
+ mode_version:4;
+ /* checksum part */
+ uint8_t payload_crc_hi:2, header_crc:6;
+ uint8_t payload_crc_lo;
+ /* payload part */
+ uint8_t payload[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t pdu_type:4, ack_nack:2, frame_nr:2;
+ uint8_t mode_version:4, proc_ind:4;
+ uint8_t header_crc:6, payload_crc_hi:2;
+ uint8_t payload_crc_lo;
+ uint8_t payload[0];
+#endif
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2.3.4.1 */
+struct iuup_ctrl_init_rfci_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
+ uint8_t rfci:6,
+ li:1,
+ lri:1;
+ uint8_t subflow_length[0]; /* 1 or 2 bytes depending on li */
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t lri:1, li:1, rfci:6;
+ uint8_t subflow_length[0];
+#endif
+} __attribute__((packed));
+struct iuup_ctrl_init_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
+ uint8_t chain_ind:1,
+ num_subflows_per_rfci:3,
+ ti:1,
+ spare:3;
+ uint8_t rfci_data[0]; /* struct iuup_ctrl_init_rfci_hdr* */
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t spare:3, ti:1, num_subflows_per_rfci:3, chain_ind:1;
+ uint8_t rfci_data[0]; /* struct iuup_ctrl_init_rfci_hdr* */
+;
+#endif
+} __attribute__((packed));
+struct iuup_ctrl_init_tail {
+#if OSMO_IS_LITTLE_ENDIAN
+ uint16_t versions_supported;
+ uint8_t spare:4,
+ data_pdu_type:4;
+ uint8_t spare_extension[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint16_t versions_supported;
+ uint8_t data_pdu_type:4, spare:4;
+ uint8_t spare_extension[0];
+#endif
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2.3.4.4 */
+struct iuup_ctrl_error_event {
+#if OSMO_IS_LITTLE_ENDIAN
+ struct iuup_pdutype14_hdr hdr;
+ uint8_t error_cause:6,
+ error_distance:2;
+ uint8_t spare_extension[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ struct iuup_pdutype14_hdr hdr;
+ uint8_t error_distance:2, error_cause:6;
+ uint8_t spare_extension[0];
+#endif
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2.3.2 */
+struct iuup_ctrl_ack {
+ struct iuup_pdutype14_hdr hdr;
+ uint8_t spare_extension[0];
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2.3.3 */
+struct iuup_ctrl_nack {
+#if OSMO_IS_LITTLE_ENDIAN
+ struct iuup_pdutype14_hdr hdr;
+ uint8_t spare:2,
+ error_cause:6;
+ uint8_t spare_extension[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ struct iuup_pdutype14_hdr hdr;
+ uint8_t error_cause:6, spare:2;
+ uint8_t spare_extension[0];
+#endif
+} __attribute__((packed));
+
+/* 3GPP TS 25.415 Section 6.6.2 + 6.6.3.1 */
+enum iuup_pdu_type {
+ IUUP_PDU_T_DATA_CRC = 0,
+ IUUP_PDU_T_DATA_NOCRC = 1,
+ IUUP_PDU_T_CONTROL = 14,
+};
+
+/* 3GPP TS 25.415 Section 6.6.3.2 */
+enum iuup_ack_nack {
+ IUUP_AN_PROCEDURE = 0,
+ IUUP_AN_ACK = 1,
+ IUUP_AN_NACK = 2,
+};
+
+/* 3GPP TS 25.415 Section 6.6.3.5 */
+enum iuup_fqc {
+ IUUP_FQC_FRAME_GOOD = 0,
+ IUUP_FQC_FRAME_BAD = 1,
+ IUUP_FQC_FRAME_BAD_RADIO = 2,
+};
+
+/* 3GPP TS 25.415 Section 6.6.3.7 */
+enum iuup_procedure {
+ IUUP_PROC_INIT = 0,
+ IUUP_PROC_RATE_CTRL = 1,
+ IUUP_PROC_TIME_ALIGN = 2,
+ IUUP_PROC_ERR_EVENT = 3,
+};
+
+
+/* 3GPP TS 25.415 Section 6.6.3.15 */
+enum iuup_error_distance {
+ IUUP_ERR_DIST_LOCAL = 0,
+ IUUP_ERR_DIST_FIRST_FWD = 1,
+ IUUP_ERR_DIST_SECOND_FWD = 2,
+ IUUP_ERR_DIST_RESERVED = 3,
+};
+
+
+/* 3GPP TS 25.415 Section 6.6.3.16 */
+enum iuup_error_cause {
+ IUUP_ERR_CAUSE_CRC_ERR_HDR = 0,
+ IUUP_ERR_CAUSE_CRC_ERR_DATA = 1,
+ IUUP_ERR_CAUSE_UNEXPECTED_FN = 2,
+ IUUP_ERR_CAUSE_FRAME_LOSS = 3,
+ IUUP_ERR_CAUSE_UNKNOWN_PDUTYPE = 4,
+ IUUP_ERR_CAUSE_UNKNOWN_PROC = 5,
+ IUUP_ERR_CAUSE_UNKNNOWN_RES_VAL = 6,
+ IUUP_ERR_CAUSE_UNKNNOWN_FIELD = 7,
+ IUUP_ERR_CAUSE_FRAME_TOO_SHORT = 8,
+ IUUP_ERR_CAUSE_MISSING_FIELDS = 9,
+ IUUP_ERR_CAUSE_UNEXPECTED_PDU_T = 16,
+ IUUP_ERR_CAUSE_UNEXPECTED_PROC = 18,
+ IUUP_ERR_CAUSE_UNEXPECTED_RFCI = 19,
+ IUUP_ERR_CAUSE_UNEXPECTED_VALUE = 20,
+ IUUP_ERR_CAUSE_INIT_FAILURE = 42,
+ IUUP_ERR_CAUSE_INIT_FAILURE_NET_TMR = 43,
+ IUUP_ERR_CAUSE_INIT_FAILURE_REP_NACK = 44,
+ IUUP_ERR_CAUSE_RATE_CTRL_FAILURE = 45,
+ IUUP_ERR_CAUSE_ERR_EVENT_FAIL = 46,
+ IUUP_ERR_CAUSE_TIME_ALIGN_NOTSUPP = 47,
+ IUUP_ERR_CAUSE_REQ_TIME_ALIGN_NOTPOSS = 48,
+ IUUP_ERR_CAUSE_MODE_VERSION_NOT_SUPPORTED = 49,
+};
diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index 580e397..326efd2 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -33,7 +33,7 @@
gsup.c gsup_sms.c gprs_gea.c gsm0503_conv.c oap.c gsm0808_utils.c \
gsm23003.c gsm23236.c mncc.c bts_features.c oap_client.c \
gsm29118.c gsm48_rest_octets.c cbsp.c gsm48049.c i460_mux.c \
- gad.c bsslap.c bssmap_le.c kdf.c
+ gad.c bsslap.c bssmap_le.c kdf.c iuup.c
libgsmint_la_LDFLAGS = -no-undefined
libgsmint_la_LIBADD = $(top_builddir)/src/libosmocore.la
diff --git a/src/gsm/iuup.c b/src/gsm/iuup.c
new file mode 100644
index 0000000..159e533
--- /dev/null
+++ b/src/gsm/iuup.c
@@ -0,0 +1,1007 @@
+/*! \file iu_up.c
+ * IuUP (Iu User Plane) according to 3GPP TS 25.415 */
+/*
+ * (C) 2017 by Harald Welte <laforge at gnumonks.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * 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.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+
+#include <osmocom/core/crc8gen.h>
+#include <osmocom/core/crc16gen.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/core/prim.h>
+#include <osmocom/core/timer.h>
+#include <osmocom/core/logging.h>
+
+#include <osmocom/gsm/prim.h>
+#include <osmocom/gsm/protocol/gsm_25_415.h>
+#include <osmocom/gsm/iuup.h>
+
+/***********************************************************************
+ * CRC Calculation
+ ***********************************************************************/
+
+/* Section 6.6.3.8 Header CRC */
+const struct osmo_crc8gen_code iuup_hdr_crc_code = {
+ .bits = 6,
+ .poly = 47,
+ .init = 0,
+ .remainder = 0,
+};
+
+/* Section 6.6.3.9 Payload CRC */
+const struct osmo_crc16gen_code iuup_data_crc_code = {
+ .bits = 10,
+ .poly = 563,
+ .init = 0,
+ .remainder = 0,
+};
+
+static int iuup_get_payload_offset(const uint8_t *iuup_pdu)
+{
+ uint8_t pdu_type = iuup_pdu[0] >> 4;
+ switch (pdu_type) {
+ case 0:
+ case 14:
+ return 4;
+ case 1:
+ return 3;
+ default:
+ return -1;
+ }
+}
+
+int osmo_iuup_compute_payload_crc(const uint8_t *iuup_pdu, unsigned int pdu_len)
+{
+ ubit_t buf[1024*8];
+ uint8_t pdu_type;
+ int offset, payload_len_bytes;
+
+ if (pdu_len < 1)
+ return -1;
+
+ pdu_type = iuup_pdu[0] >> 4;
+
+ /* Type 1 has no CRC */
+ if (pdu_type == 1)
+ return 0;
+
+ offset = iuup_get_payload_offset(iuup_pdu);
+ if (offset < 0)
+ return offset;
+
+ if (pdu_len < offset)
+ return -1;
+
+ payload_len_bytes = pdu_len - offset;
+ osmo_pbit2ubit(buf, iuup_pdu+offset, payload_len_bytes*8);
+ return osmo_crc16gen_compute_bits(&iuup_data_crc_code, buf, payload_len_bytes*8);
+}
+
+int osmo_iuup_compute_header_crc(const uint8_t *iuup_pdu, unsigned int pdu_len)
+{
+ ubit_t buf[2*8];
+
+ if (pdu_len < 2)
+ return -1;
+
+ osmo_pbit2ubit(buf, iuup_pdu, 2*8);
+ return osmo_crc8gen_compute_bits(&iuup_hdr_crc_code, buf, 2*8);
+}
+
+/***********************************************************************
+ * Internal State / FSM (Annex B)
+ ***********************************************************************/
+
+#define S(x) (1 << (x))
+
+#define IUUP_TIMER_INIT 1
+#define IUUP_TIMER_TA 2
+#define IUUP_TIMER_RC 3
+
+struct osmo_timer_nt {
+ uint32_t n; /* number of repetitions */
+ struct osmo_iuup_tnl_prim *retrans_itp;
+ struct osmo_timer_list timer;
+};
+
+struct osmo_iuup_instance {
+ struct osmo_iuup_rnl_config config;
+ struct osmo_fsm_inst *fi;
+
+ uint8_t mode_version;
+
+ struct {
+ struct osmo_timer_nt init;
+ struct osmo_timer_nt ta;
+ struct osmo_timer_nt rc;
+ } timer;
+ /* call-back function to pass primitives up to the user */
+ osmo_prim_cb user_prim_cb;
+ void *user_prim_priv;
+ osmo_prim_cb transport_prim_cb;
+ void *transport_prim_priv;
+ uint8_t type14_fn; /* 2 bits */
+};
+
+enum iuup_fsm_state {
+ IUUP_FSM_ST_NULL,
+ IUUP_FSM_ST_INIT,
+ IUUP_FSM_ST_TrM_DATA_XFER_READY,
+ IUUP_FSM_ST_SMpSDU_DATA_XFER_READY,
+};
+
+enum iuup_fsm_event {
+ IUUP_FSM_EVT_IUUP_CONFIG_REQ,
+ IUUP_FSM_EVT_IUUP_DATA_REQ,
+ IUUP_FSM_EVT_IUUP_DATA_IND,
+ IUUP_FSM_EVT_IUUP_STATUS_REQ,
+ IUUP_FSM_EVT_IUUP_STATUS_IND,
+ IUUP_FSM_EVT_SSASAR_UNITDATA_REQ,
+ IUUP_FSM_EVT_SSASAR_UNITDATA_IND,
+ IUUP_FSM_EVT_IUUP_UNITDATA_REQ,
+ IUUP_FSM_EVT_IUUP_UNITDATA_IND,
+ IUUP_FSM_EVT_INIT,
+ IUUP_FSM_EVT_LAST_INIT_ACK,
+ IUUP_FSM_EVT_INIT_NACK,
+};
+
+static const struct value_string iuup_fsm_event_names[] = {
+ { IUUP_FSM_EVT_IUUP_CONFIG_REQ, "IuUP-CONFIG.req" },
+ { IUUP_FSM_EVT_IUUP_DATA_REQ, "IuUP-DATA.req" },
+ { IUUP_FSM_EVT_IUUP_DATA_IND, "IuUP-DATA.ind" },
+ { IUUP_FSM_EVT_IUUP_STATUS_REQ, "IuUP-STATUS.req" },
+ { IUUP_FSM_EVT_IUUP_STATUS_IND, "IuUP-STATUS.ind" },
+ { IUUP_FSM_EVT_SSASAR_UNITDATA_REQ, "SSSAR-UNITDATA.req" },
+ { IUUP_FSM_EVT_SSASAR_UNITDATA_IND, "SSSAR-UNITDATA.ind" },
+ { IUUP_FSM_EVT_IUUP_UNITDATA_REQ, "IuUP-UNITDATA.req" },
+ { IUUP_FSM_EVT_IUUP_UNITDATA_IND, "IuUP-UNITDATA.ind" },
+ { IUUP_FSM_EVT_INIT, "INIT" },
+ { IUUP_FSM_EVT_LAST_INIT_ACK, "LAST_INIT_ACK" },
+ { IUUP_FSM_EVT_INIT_NACK, "INIT_NACK" },
+ { 0, NULL }
+};
+
+static inline uint8_t iuup_get_pdu_type(const uint8_t *data)
+{
+ return data[0] >> 4;
+}
+
+static inline uint8_t iuup_get_hdr_crc(const uint8_t *data)
+{
+ return data[2] >> 2;
+}
+
+/* Helper functions to store non-packed structs in msgb so that pointers are properly aligned: */
+#define IUUP_MSGB_SIZE 4096
+#define PTR_ALIGNMENT_BYTES 8
+#define IUUP_MSGB_HEADROOM_MIN_REQUIRED (OSMO_MAX(sizeof(struct osmo_iuup_tnl_prim), sizeof(struct osmo_iuup_rnl_prim)) + (PTR_ALIGNMENT_BYTES - 1))
+static inline struct msgb *osmo_iuup_msgb_alloc_c(void *ctx, size_t size)
+{
+ osmo_static_assert(size > IUUP_MSGB_HEADROOM_MIN_REQUIRED, iuup_msgb_alloc_headroom_bigger);
+ return msgb_alloc_headroom_c(ctx, size, IUUP_MSGB_HEADROOM_MIN_REQUIRED, "iuup-msgb");
+}
+
+/* push data so that the resulting pointer to write to is aligned to 8 byte */
+static inline __attribute__((assume_aligned(PTR_ALIGNMENT_BYTES)))
+unsigned char *aligned_msgb_push(struct msgb *msg, unsigned int len)
+{
+ uint8_t *ptr = (msgb_data(msg) - len);
+ size_t extra_size = ((uintptr_t)ptr & (PTR_ALIGNMENT_BYTES - 1));
+
+ return msgb_push(msg, len + extra_size);
+}
+
+struct osmo_iuup_rnl_prim *osmo_iuup_rnl_prim_alloc(void *ctx, unsigned int primitive, unsigned int operation, unsigned int size)
+{
+ struct msgb *msg;
+ struct osmo_iuup_rnl_prim *irp;
+
+ msg = osmo_iuup_msgb_alloc_c(ctx, size);
+ irp = (struct osmo_iuup_rnl_prim *)aligned_msgb_push(msg, sizeof(*irp));
+ osmo_prim_init(&irp->oph, SAP_IUUP_RNL, primitive, operation, msg);
+ return irp;
+}
+
+struct osmo_iuup_tnl_prim *osmo_iuup_tnl_prim_alloc(void *ctx, unsigned int primitive, unsigned int operation, unsigned int size)
+{
+ struct msgb *msg;
+ struct osmo_iuup_tnl_prim *itp;
+
+ msg = osmo_iuup_msgb_alloc_c(ctx, size);
+ itp = (struct osmo_iuup_tnl_prim *) aligned_msgb_push(msg, sizeof(*itp));
+ osmo_prim_init(&itp->oph, SAP_IUUP_TNL, primitive, operation, msg);
+ return itp;
+}
+
+/* 6.6.2.3.2 */
+static struct osmo_iuup_tnl_prim *itp_ctrl_ack_alloc(struct osmo_iuup_instance *iui, enum iuup_procedure proc_ind, uint8_t fn)
+{
+ struct osmo_iuup_tnl_prim *itp;
+ struct iuup_ctrl_ack *ack;
+ itp = osmo_iuup_tnl_prim_alloc(iui, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ itp->oph.msg->l2h = msgb_put(itp->oph.msg, sizeof(struct iuup_ctrl_ack));
+ ack = (struct iuup_ctrl_ack *) msgb_l2(itp->oph.msg);
+ *ack = (struct iuup_ctrl_ack){
+ .hdr = {
+ .frame_nr = fn,
+ .ack_nack = IUUP_AN_ACK,
+ .pdu_type = IUUP_PDU_T_CONTROL,
+ .proc_ind = proc_ind,
+ .mode_version = iui->mode_version,
+ .payload_crc_hi = 0,
+ .header_crc = 0,
+ .payload_crc_lo = 0,
+ },
+ };
+ ack->hdr.header_crc = osmo_iuup_compute_header_crc(msgb_l2(itp->oph.msg), msgb_l2len(itp->oph.msg));
+ return itp;
+}
+
+/* 6.6.2.3.3 */
+static struct osmo_iuup_tnl_prim *tnp_ctrl_nack_alloc(struct osmo_iuup_instance *iui, enum iuup_procedure proc_ind, enum iuup_error_cause error_cause, uint8_t fn)
+{
+ struct osmo_iuup_tnl_prim *itp;
+ struct iuup_ctrl_nack *nack;
+ itp = osmo_iuup_tnl_prim_alloc(iui, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ itp->oph.msg->l2h = msgb_put(itp->oph.msg, sizeof(struct iuup_ctrl_nack));
+ nack = (struct iuup_ctrl_nack *) msgb_l2(itp->oph.msg);
+ *nack = (struct iuup_ctrl_nack){
+ .hdr = {
+ .frame_nr = fn,
+ .ack_nack = IUUP_AN_NACK,
+ .pdu_type = IUUP_PDU_T_CONTROL,
+ .proc_ind = proc_ind,
+ .mode_version = iui->mode_version,
+ .payload_crc_hi = 0,
+ .header_crc = 0,
+ .payload_crc_lo = 0,
+ },
+ .spare = 0,
+ .error_cause = error_cause,
+ };
+ nack->hdr.header_crc = osmo_iuup_compute_header_crc(msgb_l2(itp->oph.msg), msgb_l2len(itp->oph.msg));
+ return itp;
+}
+
+/* 6.6.2.3.4.1 */
+static struct osmo_iuup_tnl_prim *tnp_ctrl_init_alloc(struct osmo_iuup_instance *iui)
+{
+ struct osmo_iuup_tnl_prim *itp;
+ struct iuup_pdutype14_hdr *hdr;
+ struct iuup_ctrl_init_hdr *ihdr;
+ struct iuup_ctrl_init_rfci_hdr *ihdr_rfci;
+ struct iuup_ctrl_init_tail *itail;
+ unsigned int i, j;
+ uint8_t num_subflows, num_rfci;
+ uint16_t payload_crc;
+ struct msgb *msg;
+
+ num_subflows = iui->config.num_subflows;
+ num_rfci = iui->config.num_rfci;
+
+ itp = osmo_iuup_tnl_prim_alloc(iui, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ msg = itp->oph.msg;
+
+ msg->l2h = msgb_put(msg, sizeof(*hdr));
+ hdr = (struct iuup_pdutype14_hdr *)msgb_l2(msg);
+ hdr->frame_nr = iui->type14_fn++;
+ hdr->ack_nack = IUUP_AN_PROCEDURE;
+ hdr->pdu_type = IUUP_PDU_T_CONTROL;
+ hdr->proc_ind = IUUP_PROC_INIT;
+ hdr->mode_version = 0; /* Use here the minimum version required to negotiate */
+ hdr->header_crc = osmo_iuup_compute_header_crc(msgb_l2(msg), msgb_l2len(msg));
+
+ ihdr = (struct iuup_ctrl_init_hdr *)msgb_put(msg, sizeof(*ihdr));
+ ihdr->chain_ind = 0; /* this frame is the last frame for the procedure. TODO: support several */
+ ihdr->num_subflows_per_rfci = num_subflows;
+ ihdr->ti = iui->config.IPTIs_present ? 1 : 0;
+ ihdr->spare = 0;
+
+ /* RFCI + subflow size part: */
+ for (i = 0; i < num_rfci; i++) {
+ bool last = (i+1 == num_rfci);
+ uint8_t len_size = 1;
+ for (j = 0; j < num_subflows; j++) {
+ if (iui->config.subflow_sizes[i][j] > UINT8_MAX)
+ len_size = 2;
+ }
+ ihdr_rfci = (struct iuup_ctrl_init_rfci_hdr *)msgb_put(msg, sizeof(*ihdr_rfci) + len_size * num_subflows);
+ ihdr_rfci->rfci = i;
+ ihdr_rfci->li = len_size - 1;
+ ihdr_rfci->lri = last;
+ if (len_size == 2) {
+ uint16_t *buf = (uint16_t *)&ihdr_rfci->subflow_length[0];
+ for (j = 0; j < num_subflows; j++)
+ osmo_store16be(iui->config.subflow_sizes[i][j], buf++);
+ } else {
+ for (j = 0; j < num_subflows; j++)
+ ihdr_rfci->subflow_length[j] = iui->config.subflow_sizes[i][j];
+ }
+ }
+
+ if (iui->config.IPTIs_present) {
+ uint8_t num_bytes = (num_rfci + 1) / 2;
+ uint8_t *buf = msgb_put(msg, num_bytes);
+ for (i = 0; i < num_bytes - 1; i++)
+ buf[i] = iui->config.IPTIs[i*2] << 4 |
+ (iui->config.IPTIs[i*2 + 1] & 0x0f);
+ buf[i] = iui->config.IPTIs[i*2] << 4;
+ if (!(num_rfci & 0x01)) /* is even: */
+ buf[i] |= (iui->config.IPTIs[i*2 + 1] & 0x0f);
+
+ }
+
+ itail = (struct iuup_ctrl_init_tail *)msgb_put(msg, sizeof(*itail));
+ osmo_store16be(iui->config.supported_versions_mask, &itail->versions_supported);
+ itail->spare = 0;
+ itail->data_pdu_type = iui->config.data_pdu_type;
+
+ payload_crc = osmo_iuup_compute_payload_crc(msgb_l2(msg), msgb_l2len(msg));
+ hdr->payload_crc_hi = (payload_crc >> 8) & 0x03;
+ hdr->payload_crc_lo = payload_crc & 0xff;
+
+
+ return itp;
+}
+
+/* transform a RNL data primitive into a TNL data primitive (down the stack) */
+static struct osmo_iuup_tnl_prim *rnl_to_tnl_data(struct osmo_iuup_instance *iui,
+ struct osmo_iuup_rnl_prim *irp)
+{
+ struct osmo_iuup_tnl_prim *itp;
+ struct osmo_iuup_rnl_data dt;
+ struct msgb *msg;
+ uint16_t payload_crc;
+ struct iuup_pdutype0_hdr *h0;
+ struct iuup_pdutype1_hdr *h1;
+
+ OSMO_ASSERT(OSMO_PRIM_HDR(&irp->oph) == OSMO_PRIM(OSMO_IUUP_RNL_DATA, PRIM_OP_REQUEST));
+
+ msg = irp->oph.msg;
+ dt = irp->u.data;
+
+ /* pull up to the IuUP payload and push a new primitive header in front */
+ msgb_pull_to_l3(msg);
+
+ /* push the PDU TYPE 0 / 1 header in front of the payload */
+ switch (iui->config.data_pdu_type) {
+ case 0:
+ msg->l2h = msgb_push(msg, sizeof(*h0));
+ h0 = (struct iuup_pdutype0_hdr *)msg->l2h;
+ h0->frame_nr = dt.frame_nr;
+ h0->pdu_type = IUUP_PDU_T_DATA_CRC;
+ h0->rfci = dt.rfci;
+ h0->fqc = dt.fqc;
+ h0->header_crc = osmo_iuup_compute_header_crc(msgb_l2(msg), msgb_l2len(msg));
+ payload_crc = osmo_iuup_compute_payload_crc(msgb_l2(msg), msgb_l2len(msg));
+ h0->payload_crc_hi = (payload_crc >> 8) & 0x03;
+ h0->payload_crc_lo = payload_crc & 0xff;
+ break;
+ case 1:
+ msg->l2h = msgb_push(msg, sizeof(*h1));
+ h1 = (struct iuup_pdutype1_hdr *)msg->l2h;
+ h1->frame_nr = dt.frame_nr;
+ h1->pdu_type = IUUP_PDU_T_DATA_NOCRC;
+ h1->rfci = dt.rfci;
+ h1->fqc = dt.fqc;
+ h1->header_crc = osmo_iuup_compute_header_crc(msgb_l2(msg), msgb_l2len(msg));
+ h1->spare = 0;
+ break;
+ default:
+ OSMO_ASSERT(0);
+ }
+
+ /* Avoid allocating irp out of 8byte-aligned address, Asan is not happy with it */
+ itp = (struct osmo_iuup_tnl_prim *) aligned_msgb_push(msg, sizeof(*itp));
+ osmo_prim_init(&itp->oph, SAP_IUUP_TNL, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST, msg);
+
+ return itp;
+}
+
+/* transform a TNL primitive into a RNL primitive (up the stack) */
+static struct osmo_iuup_rnl_prim *tnl_to_rnl_data(struct osmo_iuup_tnl_prim *itp)
+{
+ struct msgb *msg;
+ struct iuup_pdutype0_hdr *h0;
+ struct iuup_pdutype1_hdr *h1;
+ struct osmo_iuup_rnl_data dt;
+ struct osmo_iuup_rnl_prim *irp;
+
+ msg = itp->oph.msg;
+
+ OSMO_ASSERT(OSMO_PRIM_HDR(&itp->oph) == OSMO_PRIM(OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION));
+
+ switch (iuup_get_pdu_type(msgb_l2(msg))) {
+ case IUUP_PDU_T_DATA_CRC:
+ h0 = (struct iuup_pdutype0_hdr *) msgb_l2(msg);
+ dt.rfci = h0->rfci;
+ dt.frame_nr = h0->frame_nr;
+ dt.fqc = h0->fqc;
+ break;
+ case IUUP_PDU_T_DATA_NOCRC:
+ h1 = (struct iuup_pdutype1_hdr *) msgb_l2(msg);
+ dt.rfci = h1->rfci;
+ dt.frame_nr = h1->frame_nr;
+ dt.fqc = h1->fqc;
+ break;
+ }
+
+ /* pull up to the IuUP payload and push a new primitive header in front */
+ msgb_pull_to_l3(msg);
+
+ /* Avoid allocating irp out of 8byte-aligned address, Asan is not happy with it */
+ irp = (struct osmo_iuup_rnl_prim *) aligned_msgb_push(msg, sizeof(*irp));
+ osmo_prim_init(&irp->oph, SAP_IUUP_RNL, OSMO_IUUP_RNL_DATA, PRIM_OP_INDICATION, msg);
+ irp->u.data = dt;
+
+ return irp;
+}
+
+static struct osmo_iuup_rnl_prim *irp_error_event_alloc_c(void *ctx, enum iuup_error_cause cause, enum iuup_error_distance distance)
+{
+ struct osmo_iuup_rnl_prim *irp;
+ struct msgb *msg;
+ msg = msgb_alloc_c(ctx, sizeof(*irp), "iuup-tx");
+ irp = (struct osmo_iuup_rnl_prim *) msgb_put(msg, sizeof(*irp));
+ osmo_prim_init(&irp->oph, SAP_IUUP_RNL, OSMO_IUUP_RNL_STATUS, PRIM_OP_INDICATION, msg);
+ irp->u.status.procedure = IUUP_PROC_ERR_EVENT;
+ irp->u.status.u.error_event.cause = cause;
+ irp->u.status.u.error_event.distance = distance;
+ return irp;
+}
+
+static struct osmo_iuup_tnl_prim *itp_copy_c(void *ctx, const struct osmo_iuup_tnl_prim *src_itp)
+{
+ struct msgb *msg;
+ struct osmo_iuup_tnl_prim *dst_itp;
+
+ msg = msgb_copy_c(ctx, src_itp->oph.msg, "iuup-tx-retrans");
+ dst_itp = (struct osmo_iuup_tnl_prim *)msgb_data(msg);
+ dst_itp->oph.msg = msg;
+ return dst_itp;
+}
+
+static void retransmit_initialization(struct osmo_iuup_instance *iui)
+{
+ struct osmo_iuup_tnl_prim *itp;
+ iui->fi->T = IUUP_TIMER_INIT;
+ osmo_timer_schedule(&iui->fi->timer, iui->config.t_init.t_ms / 1000, (iui->config.t_init.t_ms % 1000) * 1000);
+ itp = itp_copy_c(iui, iui->timer.init.retrans_itp);
+ iui->transport_prim_cb(&itp->oph, iui->transport_prim_priv);
+}
+
+/* return: whether the last Init was Acked correctly and hence can transition to next state */
+static bool iuup_rx_initialization(struct osmo_iuup_instance *iui, struct osmo_iuup_tnl_prim *itp)
+{
+ struct iuup_pdutype14_hdr *hdr;
+ struct iuup_ctrl_init_hdr *ihdr;
+ struct iuup_ctrl_init_rfci_hdr *ihdr_rfci;
+ struct iuup_ctrl_init_tail *itail;
+ enum iuup_error_cause err_cause;
+ uint8_t num_rfci = 0;
+ unsigned int i;
+ bool is_last;
+ uint16_t remote_mask, match_mask;
+ struct osmo_iuup_tnl_prim *resp;
+
+ /* TODO: whenever we check message boundaries, length, etc. and we fail, send NACK */
+
+ hdr = (struct iuup_pdutype14_hdr *)msgb_l2(itp->oph.msg);
+ ihdr = (struct iuup_ctrl_init_hdr *)hdr->payload;
+ if (ihdr->num_subflows_per_rfci == 0) {
+ LOGPFSML(iui->fi, LOGL_NOTICE, "Initialization: Unexpected num_subflows=0 received\n");
+ err_cause = IUUP_ERR_CAUSE_UNEXPECTED_VALUE;
+ goto send_nack;
+ }
+ ihdr_rfci = (struct iuup_ctrl_init_rfci_hdr *)ihdr->rfci_data;
+
+ do {
+ uint8_t l_size_bytes = ihdr_rfci->li + 1;
+ is_last = ihdr_rfci->lri;
+ if (ihdr_rfci->rfci != num_rfci) {
+ LOGPFSML(iui->fi, LOGL_NOTICE, "Initialization: Unexpected RFCI %u at position %u received\n",
+ ihdr_rfci->rfci, num_rfci);
+ err_cause = IUUP_ERR_CAUSE_UNEXPECTED_RFCI;
+ goto send_nack;
+ }
+ if (l_size_bytes == 2) {
+ uint16_t *subflow_size = (uint16_t *)ihdr_rfci->subflow_length;
+ for (i = 0; i < ihdr->num_subflows_per_rfci; i++) {
+ iui->config.subflow_sizes[ihdr_rfci->rfci][i] = osmo_load16be(subflow_size);
+ subflow_size++;
+ }
+ } else {
+ uint8_t *subflow_size = ihdr_rfci->subflow_length;
+ for (i = 0; i < ihdr->num_subflows_per_rfci; i++) {
+ iui->config.subflow_sizes[ihdr_rfci->rfci][i] = osmo_load16be(subflow_size);
+ subflow_size++;
+ }
+ }
+ num_rfci++;
+ ihdr_rfci++;
+ ihdr_rfci = (struct iuup_ctrl_init_rfci_hdr *)(((uint8_t *)ihdr_rfci) + ihdr->num_subflows_per_rfci * l_size_bytes);
+ } while (!is_last);
+
+ if (ihdr->ti) { /* Timing information present */
+ uint8_t *buf = (uint8_t *)ihdr_rfci;
+ uint8_t num_bytes = (num_rfci + 1) / 2;
+ iui->config.IPTIs_present = true;
+ for (i = 0; i < num_bytes - 1; i++) {
+ iui->config.IPTIs[i*2] = *buf >> 4;
+ iui->config.IPTIs[i*2 + 1] = *buf & 0x0f;
+ buf++;
+ }
+ iui->config.IPTIs[i*2] = *buf >> 4;
+ if (!(num_rfci & 0x01)) /* is even: */
+ iui->config.IPTIs[i*2 + 1] = *buf & 0x0f;
+ buf++;
+ itail = (struct iuup_ctrl_init_tail *)buf;
+ } else {
+ itail = (struct iuup_ctrl_init_tail *)ihdr_rfci;
+ }
+
+ if (itail->data_pdu_type > 1) {
+ LOGPFSML(iui->fi, LOGL_NOTICE, "Initialization: Unexpected Data PDU Type %u received\n", itail->data_pdu_type);
+ err_cause = IUUP_ERR_CAUSE_UNEXPECTED_VALUE;
+ goto send_nack;
+ }
+
+ remote_mask = osmo_load16be(&itail->versions_supported);
+ match_mask = (remote_mask & iui->config.supported_versions_mask);
+ if (match_mask == 0x0000) {
+ LOGPFSML(iui->fi, LOGL_NOTICE,
+ "Initialization: No match in supported versions local=0x%04x vs remote=0x%04x\n",
+ iui->config.supported_versions_mask, remote_mask);
+ err_cause = IUUP_ERR_CAUSE_UNEXPECTED_VALUE;
+ goto send_nack;
+ }
+ for (i = 15; i >= 0; i--) {
+ if (match_mask & (1<<i)) {
+ iui->mode_version = i;
+ break;
+ }
+ }
+
+ iui->config.num_rfci = num_rfci;
+ iui->config.num_subflows = ihdr->num_subflows_per_rfci;
+ iui->config.data_pdu_type = itail->data_pdu_type;
+
+ LOGPFSML(iui->fi, LOGL_DEBUG, "Tx Initialization ACK\n");
+ resp = itp_ctrl_ack_alloc(iui, IUUP_PROC_INIT, hdr->frame_nr);
+ iui->transport_prim_cb(&resp->oph, iui->transport_prim_priv);
+ return ihdr->chain_ind == 0;
+send_nack:
+ LOGPFSML(iui->fi, LOGL_NOTICE, "Tx Initialization NACK cause=%u orig_message=%s\n",
+ err_cause, osmo_hexdump((const unsigned char *) msgb_l2(itp->oph.msg), msgb_l2len(itp->oph.msg)));
+ resp = tnp_ctrl_nack_alloc(iui, IUUP_PROC_INIT, err_cause, hdr->frame_nr);
+ iui->transport_prim_cb(&resp->oph, iui->transport_prim_priv);
+ return false;
+}
+
+/**********************
+ * FSM STATE FUNCTIONS
+ **********************/
+static void iuup_fsm_null(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct osmo_iuup_instance *iui = fi->priv;
+ struct osmo_iuup_rnl_prim *user_prim = NULL;
+
+ switch (event) {
+ case IUUP_FSM_EVT_IUUP_CONFIG_REQ:
+ user_prim = data;
+ iui->config = user_prim->u.config;
+ iui->config.supported_versions_mask &= 0x0003; /* We only support versions 1 and 2 ourselves */
+ //TODO: if supported_versions_mask == 0x0000,no supported versions, send error to upper layers
+
+ if (iui->config.transparent)
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_TrM_DATA_XFER_READY, 0, 0);
+ else {
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_INIT, 0, 0);
+ }
+ break;
+ }
+}
+
+/* transparent mode data transfer */
+static void iuup_fsm_trm_data(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ //struct osmo_iuup_instance *iui = fi->priv;
+
+ switch (event) {
+ case IUUP_FSM_EVT_IUUP_CONFIG_REQ:
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_NULL, 0, 0);
+ break;
+ case IUUP_FSM_EVT_IUUP_DATA_REQ:
+ /* Data coming down from RNL (user) towards TNL (transport) */
+ break;
+ case IUUP_FSM_EVT_IUUP_DATA_IND:
+ /* Data coming up from TNL (transport) towards RNL (user) */
+ break;
+ case IUUP_FSM_EVT_IUUP_UNITDATA_REQ:
+ case IUUP_FSM_EVT_IUUP_UNITDATA_IND:
+ case IUUP_FSM_EVT_SSASAR_UNITDATA_REQ:
+ case IUUP_FSM_EVT_SSASAR_UNITDATA_IND:
+ /* no state change */
+ break;
+ }
+}
+
+static void iuup_fsm_init_on_enter(struct osmo_fsm_inst *fi, uint32_t prev_state)
+{
+ struct osmo_iuup_instance *iui = fi->priv;
+
+ iui->type14_fn = 0;
+ if (iui->config.active) {
+ iui->timer.init.n = 0;
+ iui->timer.init.retrans_itp = tnp_ctrl_init_alloc(iui);
+ retransmit_initialization(iui);
+ }
+}
+
+static void iuup_fsm_init(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct osmo_iuup_instance *iui = fi->priv;
+ struct osmo_iuup_rnl_prim *irp;
+ struct osmo_iuup_tnl_prim *itp;
+
+ switch (event) {
+ case IUUP_FSM_EVT_IUUP_CONFIG_REQ:
+ /* the only permitted 'config req' type is the request to release the instance */
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_NULL, 0, 0);
+ break;
+ case IUUP_FSM_EVT_INIT:
+ itp = data;
+ if (iuup_rx_initialization(iui, itp))
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_SMpSDU_DATA_XFER_READY, 0, 0);
+ break;
+ case IUUP_FSM_EVT_LAST_INIT_ACK:
+ /* last INIT ACK was received, transition to DATA_XFER_READY state */
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_SMpSDU_DATA_XFER_READY, 0, 0);
+ break;
+ case IUUP_FSM_EVT_INIT_NACK:
+ LOGPFSML(fi, LOGL_NOTICE, "Rx Initialization NACK N=%" PRIu32 "/%" PRIu32 "\n",
+ iui->timer.init.n, iui->config.t_init.n_max);
+ osmo_timer_del(&fi->timer);
+ if (iui->timer.init.n == iui->config.t_init.n_max) {
+ irp = irp_error_event_alloc_c(iui, IUUP_ERR_CAUSE_INIT_FAILURE_REP_NACK, IUUP_ERR_DIST_SECOND_FWD);
+ iui->user_prim_cb(&irp->oph, iui->user_prim_priv);
+ return;
+ }
+ iui->timer.init.n++;
+ retransmit_initialization(iui);
+ break;
+ default:
+ OSMO_ASSERT(false);
+ }
+}
+
+static void iuup_fsm_smpsdu_data(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct osmo_iuup_instance *iui = fi->priv;
+ struct osmo_iuup_rnl_prim *irp = NULL;
+ struct osmo_iuup_tnl_prim *itp = NULL;
+
+ switch (event) {
+ case IUUP_FSM_EVT_IUUP_CONFIG_REQ:
+ irp = data;
+ osmo_fsm_inst_state_chg(fi, IUUP_FSM_ST_NULL, 0, 0);
+ break;
+ case IUUP_FSM_EVT_IUUP_DATA_REQ:
+ /* Data coming down from RNL (user) towards TNL (transport) */
+ irp = data;
+ itp = rnl_to_tnl_data(iui, irp);
+ iui->transport_prim_cb(&itp->oph, iui->transport_prim_priv);
+ break;
+ case IUUP_FSM_EVT_IUUP_DATA_IND:
+ /* Data coming up from TNL (transport) towards RNL (user) */
+ itp = data;
+ irp = tnl_to_rnl_data(itp);
+ iui->user_prim_cb(&irp->oph, iui->user_prim_priv);
+ break;
+ case IUUP_FSM_EVT_IUUP_UNITDATA_REQ:
+ case IUUP_FSM_EVT_IUUP_UNITDATA_IND:
+ case IUUP_FSM_EVT_SSASAR_UNITDATA_REQ:
+ case IUUP_FSM_EVT_SSASAR_UNITDATA_IND:
+ /* no state change */
+ break;
+ }
+}
+
+static int iuup_fsm_timer_cb(struct osmo_fsm_inst *fi)
+{
+ struct osmo_iuup_instance *iui = fi->priv;
+ struct osmo_iuup_rnl_prim *irp;
+
+ switch (fi->T) {
+ case IUUP_TIMER_INIT:
+ OSMO_ASSERT(fi->state == IUUP_FSM_ST_INIT);
+ if (iui->timer.init.n == iui->config.t_init.n_max) {
+ irp = irp_error_event_alloc_c(iui, IUUP_ERR_CAUSE_INIT_FAILURE_NET_TMR, IUUP_ERR_DIST_LOCAL);
+ iui->user_prim_cb(&irp->oph, iui->user_prim_priv);
+ return 0;
+ }
+ iui->timer.init.n++;
+ retransmit_initialization(iui);
+ break;
+ case IUUP_TIMER_TA:
+ break;
+ case IUUP_TIMER_RC:
+ break;
+ default:
+ OSMO_ASSERT(0);
+ }
+ return 0;
+}
+
+
+static const struct osmo_fsm_state iuup_fsm_states[] = {
+ [IUUP_FSM_ST_NULL] = {
+ .in_event_mask = S(IUUP_FSM_EVT_IUUP_CONFIG_REQ),
+ .out_state_mask = S(IUUP_FSM_ST_INIT) |
+ S(IUUP_FSM_ST_TrM_DATA_XFER_READY),
+ .name = "NULL",
+ .action = iuup_fsm_null,
+ },
+ [IUUP_FSM_ST_TrM_DATA_XFER_READY] = {
+ .in_event_mask = S(IUUP_FSM_EVT_IUUP_CONFIG_REQ) |
+ S(IUUP_FSM_EVT_IUUP_STATUS_REQ) |
+ S(IUUP_FSM_EVT_IUUP_DATA_REQ) |
+ S(IUUP_FSM_EVT_IUUP_DATA_IND) |
+ S(IUUP_FSM_EVT_IUUP_UNITDATA_REQ) |
+ S(IUUP_FSM_EVT_IUUP_UNITDATA_IND) |
+ S(IUUP_FSM_EVT_SSASAR_UNITDATA_REQ) |
+ S(IUUP_FSM_EVT_SSASAR_UNITDATA_IND),
+ .out_state_mask = S(IUUP_FSM_ST_NULL),
+ .name = "TrM Data Transfer Ready",
+ .action = iuup_fsm_trm_data,
+ },
+ [IUUP_FSM_ST_INIT] = {
+ .in_event_mask = S(IUUP_FSM_EVT_IUUP_CONFIG_REQ) |
+ S(IUUP_FSM_EVT_INIT) |
+ S(IUUP_FSM_EVT_LAST_INIT_ACK) |
+ S(IUUP_FSM_EVT_INIT_NACK),
+ .out_state_mask = S(IUUP_FSM_ST_NULL) |
+ S(IUUP_FSM_ST_SMpSDU_DATA_XFER_READY),
+ .name = "Initialisation",
+ .onenter = iuup_fsm_init_on_enter,
+ .action = iuup_fsm_init,
+ },
+ [IUUP_FSM_ST_SMpSDU_DATA_XFER_READY] = {
+ .in_event_mask = S(IUUP_FSM_EVT_IUUP_DATA_REQ) |
+ S(IUUP_FSM_EVT_IUUP_DATA_IND),
+ .out_state_mask = S(IUUP_FSM_ST_NULL) |
+ S(IUUP_FSM_ST_INIT),
+ .name = "SMpSDU Data Transfer Ready",
+ .action = iuup_fsm_smpsdu_data,
+ },
+};
+
+static struct osmo_fsm iuup_fsm = {
+ .name = "IuUP",
+ .states = iuup_fsm_states,
+ .num_states = ARRAY_SIZE(iuup_fsm_states),
+ .timer_cb = iuup_fsm_timer_cb,
+ .log_subsys = DLIUUP,
+ .event_names = iuup_fsm_event_names,
+};
+
+static int iuup_verify_pdu(const uint8_t *data, unsigned int len)
+{
+ int header_crc_computed, payload_crc_computed;
+ uint16_t payload_crc;
+ uint8_t pdu_type = iuup_get_pdu_type(data);
+ struct iuup_pdutype0_hdr *t0h;
+ struct iuup_pdutype14_hdr *t14h;
+
+ if (len < 3)
+ return -EINVAL;
+
+ header_crc_computed = osmo_iuup_compute_header_crc(data, len);
+ if (iuup_get_hdr_crc(data) != header_crc_computed) {
+ LOGP(DLIUUP, LOGL_NOTICE, "Checksum error: rx 0x%02x vs exp 0x%02x\n",
+ iuup_get_hdr_crc(data), header_crc_computed);
+ return -EIO;
+ }
+ switch (pdu_type) {
+ case IUUP_PDU_T_DATA_NOCRC:
+ if (len < 4)
+ return -EINVAL;
+ break;
+ case IUUP_PDU_T_DATA_CRC:
+ t0h = (struct iuup_pdutype0_hdr *) data;
+ payload_crc = ((uint16_t)t0h->payload_crc_hi << 8) | t0h->payload_crc_lo;
+ payload_crc_computed = osmo_iuup_compute_payload_crc(data, len);
+ if (payload_crc != payload_crc_computed)
+ return -EIO;
+ break;
+ case IUUP_PDU_T_CONTROL:
+ t14h = (struct iuup_pdutype14_hdr *) data;
+ if (t14h->ack_nack == IUUP_AN_PROCEDURE) {
+ payload_crc = ((uint16_t)t14h->payload_crc_hi << 8) | t14h->payload_crc_lo;
+ payload_crc_computed = osmo_iuup_compute_payload_crc(data, len);
+ if (payload_crc != payload_crc_computed)
+ return -EIO;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/* A IuUP TNL SAP primitive from transport (lower layer) */
+int osmo_iuup_tnl_prim_up(struct osmo_iuup_instance *inst, struct osmo_iuup_tnl_prim *itp)
+{
+ struct osmo_prim_hdr *oph = &itp->oph;
+ struct iuup_pdutype14_hdr *t14h;
+ int rc = 0;
+
+ OSMO_ASSERT(oph->sap == SAP_IUUP_TNL);
+
+ switch (OSMO_PRIM_HDR(oph)) {
+ case OSMO_PRIM(OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION):
+ if (iuup_verify_pdu(msgb_l2(oph->msg), msgb_l2len(oph->msg)) < 0) {
+ LOGPFSML(inst->fi, LOGL_NOTICE, "Discarding invalid IuUP PDU: %s\n",
+ osmo_hexdump((const unsigned char *) msgb_l2(oph->msg), msgb_l2len(oph->msg)));
+ /* don't return error as the caller is not responsible for the PDU which
+ * was transmitted from some remote peer */
+ return 0;
+ }
+ switch (iuup_get_pdu_type(msgb_l2(oph->msg))) {
+ case IUUP_PDU_T_DATA_CRC:
+ oph->msg->l3h = msgb_l2(oph->msg) + sizeof(struct iuup_pdutype0_hdr);
+ rc = osmo_fsm_inst_dispatch(inst->fi, IUUP_FSM_EVT_IUUP_DATA_IND, itp);
+ break;
+ case IUUP_PDU_T_DATA_NOCRC:
+ oph->msg->l3h = msgb_l2(oph->msg) + sizeof(struct iuup_pdutype1_hdr);
+ rc = osmo_fsm_inst_dispatch(inst->fi, IUUP_FSM_EVT_IUUP_DATA_IND, itp);
+ break;
+ case IUUP_PDU_T_CONTROL:
+ t14h = (struct iuup_pdutype14_hdr *) msgb_l2(oph->msg);
+ switch (t14h->ack_nack) {
+ case IUUP_AN_PROCEDURE:
+ switch (t14h->proc_ind) {
+ case IUUP_PROC_INIT:
+ rc = osmo_fsm_inst_dispatch(inst->fi, IUUP_FSM_EVT_INIT, itp);
+ break;
+ case IUUP_PROC_RATE_CTRL:
+ case IUUP_PROC_TIME_ALIGN:
+ case IUUP_PROC_ERR_EVENT:
+ LOGPFSML(inst->fi, LOGL_NOTICE, "Received Request for "
+ "unsupported IuUP procedure %u\n", t14h->proc_ind);
+ break;
+ default:
+ LOGPFSML(inst->fi, LOGL_NOTICE, "Received Request for "
+ "unknown IuUP procedure %u\n", t14h->proc_ind);
+ break;
+ }
+ break;
+ case IUUP_AN_ACK:
+ switch (t14h->proc_ind) {
+ case IUUP_PROC_INIT:
+ rc = osmo_fsm_inst_dispatch(inst->fi,
+ IUUP_FSM_EVT_LAST_INIT_ACK, itp);
+ break;
+ default:
+ LOGPFSML(inst->fi, LOGL_ERROR, "Received ACK for "
+ "unknown IuUP procedure %u\n", t14h->proc_ind);
+ break;
+ }
+ break;
+ case IUUP_AN_NACK:
+ switch (t14h->proc_ind) {
+ case IUUP_PROC_INIT:
+ rc = osmo_fsm_inst_dispatch(inst->fi,
+ IUUP_FSM_EVT_INIT_NACK, itp);
+ break;
+ default:
+ LOGPFSML(inst->fi, LOGL_ERROR, "Received NACK for "
+ "unknown IuUP procedure %u\n", t14h->proc_ind);
+ break;
+ }
+ break;
+ default:
+ LOGPFSML(inst->fi, LOGL_ERROR, "Received unknown IuUP ACK/NACK\n");
+ break;
+ }
+ break;
+ default:
+ LOGPFSML(inst->fi, LOGL_NOTICE, "Received unknown IuUP PDU type %u\n",
+ iuup_get_pdu_type(msgb_l2(oph->msg)));
+ break;
+ }
+ break;
+ default:
+ /* exception: return an error code due to a wrong primitive */
+ return -EINVAL;
+ }
+
+ return rc;
+}
+
+/* A IuUP RNL SAP primitive from user (higher layer) */
+int osmo_iuup_rnl_prim_down(struct osmo_iuup_instance *inst, struct osmo_iuup_rnl_prim *irp)
+{
+ struct osmo_prim_hdr *oph = &irp->oph;
+ int rc;
+
+ OSMO_ASSERT(oph->sap == SAP_IUUP_RNL);
+
+ switch (OSMO_PRIM_HDR(oph)) {
+ case OSMO_PRIM(OSMO_IUUP_RNL_CONFIG, PRIM_OP_REQUEST):
+ rc = osmo_fsm_inst_dispatch(inst->fi, IUUP_FSM_EVT_IUUP_CONFIG_REQ, irp);
+ msgb_free(irp->oph.msg);
+ break;
+ case OSMO_PRIM(OSMO_IUUP_RNL_DATA, PRIM_OP_REQUEST):
+ rc = osmo_fsm_inst_dispatch(inst->fi, IUUP_FSM_EVT_IUUP_DATA_REQ, irp);
+ if (rc != 0)
+ msgb_free(irp->oph.msg);
+ break;
+ case OSMO_PRIM(OSMO_IUUP_RNL_STATUS, PRIM_OP_REQUEST):
+ rc = osmo_fsm_inst_dispatch(inst->fi, IUUP_FSM_EVT_IUUP_STATUS_REQ, irp);
+ msgb_free(irp->oph.msg);
+ break;
+ default:
+ rc = -EINVAL;
+ msgb_free(irp->oph.msg);
+ }
+ return rc;
+}
+
+struct osmo_iuup_instance *osmo_iuup_instance_alloc(void *ctx, const char *id)
+{
+ struct osmo_iuup_instance *iui;
+ iui = talloc_zero(ctx, struct osmo_iuup_instance);
+ if (!iui)
+ return NULL;
+
+ iui->fi = osmo_fsm_inst_alloc(&iuup_fsm, NULL, iui, LOGL_DEBUG, id);
+ if (!iui->fi)
+ goto free_ret;
+
+ return iui;
+free_ret:
+ talloc_free(iui);
+ return NULL;
+}
+
+void osmo_iuup_instance_free(struct osmo_iuup_instance *iui)
+{
+ if (!iui)
+ return;
+
+ if (iui->fi)
+ osmo_fsm_inst_free(iui->fi);
+ iui->fi = NULL;
+ talloc_free(iui);
+}
+
+void osmo_iuup_instance_set_user_prim_cb(struct osmo_iuup_instance *iui, osmo_prim_cb func, void *priv)
+{
+ iui->user_prim_cb = func;
+ iui->user_prim_priv = priv;
+}
+void osmo_iuup_instance_set_transport_prim_cb(struct osmo_iuup_instance *iui, osmo_prim_cb func, void *priv)
+{
+ iui->transport_prim_cb = func;
+ iui->transport_prim_priv = priv;
+}
+
+static __attribute__((constructor)) void on_dso_load_iuup_fsm(void)
+{
+ OSMO_ASSERT(osmo_fsm_register(&iuup_fsm) == 0);
+}
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 475ec02..b971ca0 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -771,5 +771,16 @@
osmo_gad_raw_write;
osmo_gad_type_names;
+osmo_iuup_compute_header_crc;
+osmo_iuup_compute_payload_crc;
+osmo_iuup_instance_alloc;
+osmo_iuup_instance_free;
+osmo_iuup_instance_set_user_prim_cb;
+osmo_iuup_instance_set_transport_prim_cb;
+osmo_iuup_tnl_prim_up;
+osmo_iuup_rnl_prim_down;
+osmo_iuup_rnl_prim_alloc;
+osmo_iuup_tnl_prim_alloc;
+
local: *;
};
diff --git a/src/logging.c b/src/logging.c
index 9497f28..e5c66f2 100644
--- a/src/logging.c
+++ b/src/logging.c
@@ -294,6 +294,12 @@
.enabled = 1, .loglevel = LOGL_NOTICE,
.color = "\033[38;5;63m",
},
+ [INT2IDX(DLIUUP)] = {
+ .name = "DLIUUP",
+ .description = "Iu UP layer",
+ .enabled = 1, .loglevel = LOGL_NOTICE,
+ .color = "\033[38;5;65m",
+ },
};
void assert_loginfo(const char *src)
diff --git a/tests/Makefile.am b/tests/Makefile.am
index a6f6017..f54ce18 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -45,6 +45,7 @@
time_cc/time_cc_test \
gsm48/rest_octets_test \
base64/base64_test \
+ iuup/iuup_test \
$(NULL)
if ENABLE_MSGFILE
@@ -328,6 +329,9 @@
time_cc_time_cc_test_SOURCES = time_cc/time_cc_test.c
time_cc_time_cc_test_LDADD = $(LDADD)
+iuup_iuup_test_SOURCES = iuup/iuup_test.c
+iuup_iuup_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
+
# The `:;' works around a Bash 3.2 bug when the output is not writeable.
$(srcdir)/package.m4: $(top_srcdir)/configure.ac
:;{ \
@@ -420,6 +424,7 @@
time_cc/time_cc_test.ok \
gsm48/rest_octets_test.ok \
base64/base64_test.ok \
+ iuup/iuup_test.ok \
$(NULL)
if ENABLE_LIBSCTP
@@ -616,6 +621,8 @@
>$(srcdir)/it_q/it_q_test.ok
time_cc/time_cc_test \
>$(srcdir)/time_cc/time_cc_test.ok
+ iuup/iuup_test \
+ >$(srcdir)/iuup/iuup_test.ok
check-local: atconfig $(TESTSUITE)
[ -e /proc/cpuinfo ] && cat /proc/cpuinfo
diff --git a/tests/iuup/iuup_test.c b/tests/iuup/iuup_test.c
new file mode 100644
index 0000000..0c7dbff
--- /dev/null
+++ b/tests/iuup/iuup_test.c
@@ -0,0 +1,543 @@
+#include <stdint.h>
+#include <stdio.h>
+
+#include <osmocom/core/application.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/core/select.h>
+
+#include <osmocom/gsm/prim.h>
+#include <osmocom/gsm/iuup.h>
+
+static void *iuup_test_ctx;
+
+static struct osmo_iuup_rnl_config def_configure_req = {
+ .transparent = false,
+ .active = true,
+ .supported_versions_mask = 0x0001,
+ .num_rfci = 3,
+ .num_subflows = 3,
+ .subflow_sizes = {
+ {81, 103, 60},
+ {39, 0, 0},
+ {0, 0, 0},
+ },
+ /* .delivery_err_sdu = All set to 0 (YES) by default, */
+ .IPTIs_present = true,
+ .IPTIs = {1, 7, 1},
+ .t_init = { .t_ms = IUUP_TIMER_INIT_T_DEFAULT, .n_max = IUUP_TIMER_INIT_N_DEFAULT },
+ .t_ta = { .t_ms = IUUP_TIMER_TA_T_DEFAULT, .n_max = IUUP_TIMER_TA_N_DEFAULT },
+ .t_rc = { .t_ms = IUUP_TIMER_RC_T_DEFAULT, .n_max = IUUP_TIMER_RC_N_DEFAULT },
+};
+
+/* Frame 33, "Initialization", OS#4744 3g_call_23112021.pcapng
+IuUP
+ 1110 .... = PDU Type: Control Procedure (14)
+ .... 00.. = Ack/Nack: Procedure (0)
+ .... ..00 = Frame Number: 0
+ 0000 .... = Mode Version: 0x0
+ .... 0000 = Procedure: Initialization (0)
+ 1101 11.. = Header CRC: 0x37 [correct]
+ .... ..11 1001 1001 = Payload CRC: 0x399
+ 000. .... = Spare: 0x0
+ ...1 .... = TI: IPTIs present in frame (1)
+ .... 011. = Subflows: 3
+ .... ...0 = Chain Indicator: this frame is the last frame for the procedure (0)
+ RFCI 0 Initialization
+ 0... .... = RFCI 0 LRI: Not last RFCI (0x0)
+ .0.. .... = RFCI 0 LI: one octet used (0x0)
+ ..00 0000 = RFCI 0: 0
+ RFCI 0 Flow 0 Len: 81
+ RFCI 0 Flow 1 Len: 103
+ RFCI 0 Flow 2 Len: 60
+ RFCI 1 Initialization
+ 0... .... = RFCI 1 LRI: Not last RFCI (0x0)
+ .0.. .... = RFCI 1 LI: one octet used (0x0)
+ ..00 0001 = RFCI 1: 1
+ RFCI 1 Flow 0 Len: 39
+ RFCI 1 Flow 1 Len: 0
+ RFCI 1 Flow 2 Len: 0
+ RFCI 2 Initialization
+ 1... .... = RFCI 2 LRI: Last RFCI in current frame (0x1)
+ .0.. .... = RFCI 2 LI: one octet used (0x0)
+ ..00 0010 = RFCI 2: 2
+ RFCI 2 Flow 0 Len: 0
+ RFCI 2 Flow 1 Len: 0
+ RFCI 2 Flow 2 Len: 0
+ IPTIs
+ 0001 .... = RFCI 0 IPTI: 0x1
+ .... 0111 = RFCI 1 IPTI: 0x7
+ 0001 .... = RFCI 2 IPTI: 0x1
+ Iu UP Mode Versions Supported: 0x0001
+ 0... .... .... .... = Version 16: not supported (0x0)
+ .0.. .... .... .... = Version 15: not supported (0x0)
+ ..0. .... .... .... = Version 14: not supported (0x0)
+ ...0 .... .... .... = Version 13: not supported (0x0)
+ .... 0... .... .... = Version 12: not supported (0x0)
+ .... .0.. .... .... = Version 11: not supported (0x0)
+ .... ..0. .... .... = Version 10: not supported (0x0)
+ .... ...0 .... .... = Version 9: not supported (0x0)
+ .... .... 0... .... = Version 8: not supported (0x0)
+ .... .... .0.. .... = Version 7: not supported (0x0)
+ .... .... ..0. .... = Version 6: not supported (0x0)
+ .... .... ...0 .... = Version 5: not supported (0x0)
+ .... .... .... 0... = Version 4: not supported (0x0)
+ .... .... .... .0.. = Version 3: not supported (0x0)
+ .... .... .... ..0. = Version 2: not supported (0x0)
+ .... .... .... ...1 = Version 1: supported (0x1)
+ 0000 .... = RFCI Data Pdu Type: PDU type 0 (0x0)
+*/
+static const uint8_t iuup_initialization[] = {
+ 0xe0, 0x00, 0xdf, 0x99, 0x16, 0x00, 0x51, 0x67, 0x3c, 0x01, 0x27, 0x00,
+ 0x00, 0x82, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x01, 0x00
+};
+
+/* Frame 87, "Data RFCI=0 FN = 1", OS#4744 3g_call_23112021.pcapng
+IuUP
+ 0000 .... = PDU Type: Data with CRC (0)
+ .... 0001 = Frame Number: 1
+ 00.. .... = FQC: Frame Good (0)
+ ..00 0000 = RFCI: 0x00
+ 1110 00.. = Header CRC: 0x38 [correct]
+ .... ..11 1111 1111 = Payload CRC: 0x3ff
+ Payload Data: 08556d944c71a1a081e7ead204244480000ecd82b81118000097c4794e7740
+*/
+static const uint8_t iuup_data[] = {
+ 0x01, 0x00, 0xe3, 0xff, /*payload starts here: */ 0x08, 0x55, 0x6d, 0x94, 0x4c, 0x71, 0xa1, 0xa0,
+ 0x81, 0xe7, 0xea, 0xd2, 0x04, 0x24, 0x44, 0x80, 0x00, 0x0e, 0xcd, 0x82,
+ 0xb8, 0x11, 0x18, 0x00, 0x00, 0x97, 0xc4, 0x79, 0x4e, 0x77, 0x40
+};
+
+#define IUUP_MSGB_SIZE 4096
+
+static struct osmo_iuup_tnl_prim *itp_ctrl_nack_alloc(enum iuup_procedure proc_ind, enum iuup_error_cause error_cause, uint8_t fn)
+{
+ struct osmo_iuup_tnl_prim *tnp;
+ struct iuup_ctrl_nack *nack;
+ tnp = osmo_iuup_tnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION, IUUP_MSGB_SIZE);
+ tnp->oph.msg->l2h = msgb_put(tnp->oph.msg, sizeof(struct iuup_ctrl_nack));
+ nack = (struct iuup_ctrl_nack *) msgb_l2(tnp->oph.msg);
+ *nack = (struct iuup_ctrl_nack){
+ .hdr = {
+ .frame_nr = fn,
+ .ack_nack = IUUP_AN_NACK,
+ .pdu_type = IUUP_PDU_T_CONTROL,
+ .proc_ind = proc_ind,
+ .mode_version = 0,
+ .payload_crc_hi = 0,
+ .header_crc = 0,
+ .payload_crc_lo = 0,
+ },
+ .spare = 0,
+ .error_cause = error_cause,
+ };
+ nack->hdr.header_crc = osmo_iuup_compute_header_crc(msgb_l2(tnp->oph.msg), msgb_l2len(tnp->oph.msg));
+ return tnp;
+}
+
+static struct osmo_iuup_tnl_prim *itp_ctrl_ack_alloc(enum iuup_procedure proc_ind, uint8_t fn)
+{
+ struct osmo_iuup_tnl_prim *tnp;
+ struct iuup_ctrl_ack *ack;
+ tnp = osmo_iuup_tnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION, IUUP_MSGB_SIZE);
+ tnp->oph.msg->l2h = msgb_put(tnp->oph.msg, sizeof(struct iuup_ctrl_ack));
+ ack = (struct iuup_ctrl_ack *) msgb_l2(tnp->oph.msg);
+ *ack = (struct iuup_ctrl_ack){
+ .hdr = {
+ .frame_nr = fn,
+ .ack_nack = IUUP_AN_ACK,
+ .pdu_type = IUUP_PDU_T_CONTROL,
+ .proc_ind = proc_ind,
+ .mode_version = 0,
+ .payload_crc_hi = 0,
+ .header_crc = 0,
+ .payload_crc_lo = 0,
+ },
+ };
+ ack->hdr.header_crc = osmo_iuup_compute_header_crc(msgb_l2(tnp->oph.msg), msgb_l2len(tnp->oph.msg));
+ return tnp;
+}
+
+static void clock_override_set(long sec, long usec)
+{
+ osmo_gettimeofday_override_time.tv_sec = sec + usec / (1000*1000);
+ osmo_gettimeofday_override_time.tv_usec = usec % (1000*1000);
+ printf("sys={%lu.%06lu}, %s\n", osmo_gettimeofday_override_time.tv_sec,
+ osmo_gettimeofday_override_time.tv_usec, __func__);
+}
+
+void test_crc(void)
+{
+ int rc;
+
+ /* Frame 34, "Initialization ACK", OS#4744 3g_call_23112021.pcapng */
+ static const uint8_t iuup_initialization_ack[] = {
+ 0xe4, 0x00, 0xdf, 0x99, 0x16, 0x00, 0x51, 0x67, 0x3c, 0x01, 0x27, 0x00,
+ 0x00, 0x82, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x01, 0x00
+ };
+
+ printf("=== start: %s ===\n", __func__);
+
+ rc = osmo_iuup_compute_header_crc(iuup_initialization, sizeof(iuup_initialization));
+ printf("iuup_initialization: Header CRC = 0x%02x\n", rc);
+ rc = osmo_iuup_compute_payload_crc(iuup_initialization, sizeof(iuup_initialization));
+ printf("iuup_initialization: Payload CRC = 0x%03x\n", rc);
+
+ rc = osmo_iuup_compute_header_crc(iuup_initialization_ack, sizeof(iuup_initialization_ack));
+ printf("iuup_initialization_ack: Header CRC = 0x%02x\n", rc);
+ rc = osmo_iuup_compute_payload_crc(iuup_initialization_ack, sizeof(iuup_initialization_ack));
+ printf("iuup_initialization_ack: Payload CRC = 0x%03x\n", rc);
+
+ printf("=== end: %s ===\n", __func__);
+}
+
+
+/****************************
+ * test_tinit_timeout_retrans
+ ****************************/
+static unsigned int _tinit_timeout_retrans_user_rx_prim = 0;
+static int _tinit_timeout_retrans_user_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_rnl_prim *irp = (struct osmo_iuup_rnl_prim *)oph;
+ printf("%s()\n", __func__);
+
+ OSMO_ASSERT(OSMO_PRIM_HDR(&irp->oph) == OSMO_PRIM(OSMO_IUUP_RNL_STATUS, PRIM_OP_INDICATION));
+
+ OSMO_ASSERT(irp->u.status.procedure == IUUP_PROC_ERR_EVENT);
+ OSMO_ASSERT(irp->u.status.u.error_event.cause == IUUP_ERR_CAUSE_INIT_FAILURE_NET_TMR);
+ OSMO_ASSERT(irp->u.status.u.error_event.distance == IUUP_ERR_DIST_LOCAL);
+ _tinit_timeout_retrans_user_rx_prim++;
+ msgb_free(oph->msg);
+ return 0;
+}
+static unsigned int _tinit_timeout_retrans_transport_rx_prim = 0;
+static int _tinit_timeout_retrans_transport_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_tnl_prim *itp = (struct osmo_iuup_tnl_prim *)oph;
+ struct msgb *msg = oph->msg;
+
+ printf("%s()\n", __func__);
+ OSMO_ASSERT(OSMO_PRIM_HDR(&itp->oph) == OSMO_PRIM(OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST));
+ printf("Transport: DL len=%u: %s\n", msgb_l2len(msg),
+ osmo_hexdump((const unsigned char *) msgb_l2(msg), msgb_l2len(msg)));
+ _tinit_timeout_retrans_transport_rx_prim++;
+
+ msgb_free(msg);
+ return 0;
+}
+void test_tinit_timeout_retrans(void)
+{
+ struct osmo_iuup_instance *iui;
+ struct osmo_iuup_rnl_prim *rnp;
+ int rc, i;
+
+ iui = osmo_iuup_instance_alloc(iuup_test_ctx, __func__);
+ OSMO_ASSERT(iui);
+ osmo_iuup_instance_set_user_prim_cb(iui, _tinit_timeout_retrans_user_prim_cb, NULL);
+ osmo_iuup_instance_set_transport_prim_cb(iui, _tinit_timeout_retrans_transport_prim_cb, NULL);
+
+ clock_override_set(0, 0);
+
+ /* Tx CONFIG.req */
+ rnp = osmo_iuup_rnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_RNL_CONFIG, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ rnp->u.config = def_configure_req;
+ OSMO_ASSERT((rc = osmo_iuup_rnl_prim_down(iui, rnp)) == 0);
+ /* STATUS-INIT.req is transmitted automatically: */
+ OSMO_ASSERT(_tinit_timeout_retrans_transport_rx_prim == 1);
+
+ /* After one sec, INITIALIZATION msg is retransmitted */
+ for (i = 1; i < IUUP_TIMER_INIT_N_DEFAULT + 1; i++) {
+ clock_override_set(0, IUUP_TIMER_INIT_T_DEFAULT*1000 * i);
+ osmo_select_main(0);
+ OSMO_ASSERT(_tinit_timeout_retrans_transport_rx_prim == i + 1);
+ }
+ /* Last one should send an error event: */
+ OSMO_ASSERT(_tinit_timeout_retrans_user_rx_prim == 0);
+ clock_override_set(0, IUUP_TIMER_INIT_T_DEFAULT*1000 * i);
+ osmo_select_main(0);
+ OSMO_ASSERT(_tinit_timeout_retrans_transport_rx_prim == i);
+ OSMO_ASSERT(_tinit_timeout_retrans_user_rx_prim == 1);
+
+ /* Nothing else is received afterwards. osmo_select_main() will block forever. */
+ /*clock_override_set(i + 1, 0);
+ osmo_select_main(0);
+ OSMO_ASSERT(_tinit_timeout_retrans_transport_rx_prim == i);
+ OSMO_ASSERT(_tinit_timeout_retrans_user_rx_prim == 1);*/
+
+ osmo_iuup_instance_free(iui);
+}
+
+/****************************
+ * test_tinit_nack
+ ****************************/
+static unsigned int _init_nack_retrans_user_rx_prim = 0;
+static int _init_nack_retrans_user_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_rnl_prim *irp = (struct osmo_iuup_rnl_prim *)oph;
+
+ printf("%s()\n", __func__);
+
+ OSMO_ASSERT(OSMO_PRIM_HDR(&irp->oph) == OSMO_PRIM(OSMO_IUUP_RNL_STATUS, PRIM_OP_INDICATION));
+
+ OSMO_ASSERT(irp->u.status.procedure == IUUP_PROC_ERR_EVENT);
+ OSMO_ASSERT(irp->u.status.u.error_event.cause == IUUP_ERR_CAUSE_INIT_FAILURE_REP_NACK);
+ OSMO_ASSERT(irp->u.status.u.error_event.distance == IUUP_ERR_DIST_SECOND_FWD);
+ _init_nack_retrans_user_rx_prim++;
+ msgb_free(oph->msg);
+ return 0;
+}
+static int _init_nack_retrans_transport_rx_prim = 0;
+static int _init_nack_retrans_transport_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_tnl_prim *itp = (struct osmo_iuup_tnl_prim *)oph;
+ struct msgb *msg = oph->msg;
+
+ printf("%s()\n", __func__);
+ OSMO_ASSERT(OSMO_PRIM_HDR(&itp->oph) == OSMO_PRIM(OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST));
+ printf("Transport: DL len=%u: %s\n", msgb_l2len(msg),
+ osmo_hexdump((const unsigned char *) msgb_l2(msg), msgb_l2len(msg)));
+ _init_nack_retrans_transport_rx_prim++;
+
+ msgb_free(msg);
+ return 0;
+}
+void test_init_nack_retrans(void)
+{
+ struct osmo_iuup_instance *iui;
+ struct osmo_iuup_rnl_prim *rnp;
+ struct osmo_iuup_tnl_prim *tnp;
+ int rc, i;
+
+ iui = osmo_iuup_instance_alloc(iuup_test_ctx, __func__);
+ OSMO_ASSERT(iui);
+ osmo_iuup_instance_set_user_prim_cb(iui, _init_nack_retrans_user_prim_cb, NULL);
+ osmo_iuup_instance_set_transport_prim_cb(iui, _init_nack_retrans_transport_prim_cb, NULL);
+
+ clock_override_set(0, 0);
+
+ /* Tx CONFIG.req */
+ rnp = osmo_iuup_rnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_RNL_CONFIG, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ rnp->u.config = def_configure_req;
+ OSMO_ASSERT((rc = osmo_iuup_rnl_prim_down(iui, rnp)) == 0);
+ /* STATUS-INIT.req is transmitted automatically: */
+ OSMO_ASSERT(_init_nack_retrans_transport_rx_prim == 1);
+
+ /* After one sec, INITIALIZATION msg is retransmitted */
+ for (i = 1; i < IUUP_TIMER_INIT_N_DEFAULT + 1; i++) {
+ /* Send NACK: */
+ tnp = itp_ctrl_nack_alloc(IUUP_PROC_INIT, IUUP_ERR_CAUSE_MODE_VERSION_NOT_SUPPORTED, 0);
+ OSMO_ASSERT((rc = osmo_iuup_tnl_prim_up(iui, tnp)) == 0);
+ /* A new INIT is retransmitted: */
+ OSMO_ASSERT(_init_nack_retrans_transport_rx_prim == i + 1);
+ }
+ /* Last one should send an error event: */
+ OSMO_ASSERT(_init_nack_retrans_user_rx_prim == 0);
+ tnp = itp_ctrl_nack_alloc(IUUP_PROC_INIT, IUUP_ERR_CAUSE_MODE_VERSION_NOT_SUPPORTED, 0);
+ OSMO_ASSERT((rc = osmo_iuup_tnl_prim_up(iui, tnp)) == 0);
+ OSMO_ASSERT(_init_nack_retrans_transport_rx_prim == i);
+ OSMO_ASSERT(_init_nack_retrans_user_rx_prim == 1);
+
+ /* Nothing else is received afterwards. osmo_select_main() will block forever. */
+
+ osmo_iuup_instance_free(iui);
+}
+
+
+/****************************
+ * test_init_ack
+ ****************************/
+static unsigned int _init_ack_user_rx_prim = 0;
+static int _init_ack_user_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_rnl_prim *irp = (struct osmo_iuup_rnl_prim *)oph;
+ struct msgb *msg = oph->msg;
+
+ printf("%s()\n", __func__);
+
+ OSMO_ASSERT(OSMO_PRIM_HDR(&irp->oph) == OSMO_PRIM(OSMO_IUUP_RNL_DATA, PRIM_OP_INDICATION));
+ printf("User: UL len=%u: %s\n", msgb_l3len(msg),
+ osmo_hexdump((const unsigned char *) msgb_l3(msg), msgb_l3len(msg)));
+
+ _init_ack_user_rx_prim++;
+ msgb_free(oph->msg);
+ return 0;
+}
+static int _init_ack_transport_rx_prim = 0;
+static int _init_ack_transport_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_tnl_prim *itp = (struct osmo_iuup_tnl_prim *)oph;
+ struct msgb *msg = oph->msg;
+
+ printf("%s()\n", __func__);
+ OSMO_ASSERT(OSMO_PRIM_HDR(&itp->oph) == OSMO_PRIM(OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST));
+ printf("Transport: DL len=%u: %s\n", msgb_l2len(msg),
+ osmo_hexdump((const unsigned char *) msgb_l2(msg), msgb_l2len(msg)));
+ _init_ack_transport_rx_prim++;
+
+ msgb_free(msg);
+ return 0;
+}
+void test_init_ack(void)
+{
+ struct osmo_iuup_instance *iui;
+ struct osmo_iuup_rnl_prim *rnp;
+ struct osmo_iuup_tnl_prim *tnp;
+ struct iuup_pdutype0_hdr *hdr0;
+ int rc;
+
+ iui = osmo_iuup_instance_alloc(iuup_test_ctx, __func__);
+ OSMO_ASSERT(iui);
+ osmo_iuup_instance_set_user_prim_cb(iui, _init_ack_user_prim_cb, NULL);
+ osmo_iuup_instance_set_transport_prim_cb(iui, _init_ack_transport_prim_cb, NULL);
+
+ clock_override_set(0, 0);
+
+ /* Tx CONFIG.req */
+ rnp = osmo_iuup_rnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_RNL_CONFIG, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ rnp->u.config = def_configure_req;
+ OSMO_ASSERT((rc = osmo_iuup_rnl_prim_down(iui, rnp)) == 0);
+ /* STATUS-INIT.req is transmitted automatically: */
+ OSMO_ASSERT(_init_ack_transport_rx_prim == 1);
+
+ /* Send ACK: */
+ tnp = itp_ctrl_ack_alloc(IUUP_PROC_INIT, 0);
+ OSMO_ASSERT((rc = osmo_iuup_tnl_prim_up(iui, tnp)) == 0);
+ OSMO_ASSERT(_init_ack_transport_rx_prim == 1); /* Make sure there's no retrans */
+ OSMO_ASSERT(_init_ack_user_rx_prim == 0); /* Make sure there's no error event */
+
+ /* Send IuUP incoming data to the implementation: */
+ tnp = osmo_iuup_tnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION, IUUP_MSGB_SIZE);
+ tnp->oph.msg->l2h = msgb_put(tnp->oph.msg, sizeof(iuup_data));
+ hdr0 = (struct iuup_pdutype0_hdr *)msgb_l2(tnp->oph.msg);
+ memcpy(hdr0, iuup_data, sizeof(iuup_data));
+ OSMO_ASSERT((rc = osmo_iuup_tnl_prim_up(iui, tnp)) == 0);
+ /* We receive it in RNL: */
+ OSMO_ASSERT(_init_ack_user_rx_prim == 1);
+
+ /* Now in opposite direction, RNL->[IuuP]->TNL: */
+ rnp = osmo_iuup_rnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_RNL_DATA, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ rnp->u.data.rfci = 0;
+ rnp->u.data.frame_nr = 1;
+ rnp->u.data.fqc = IUUP_FQC_FRAME_GOOD;
+ rnp->oph.msg->l3h = msgb_put(rnp->oph.msg, sizeof(iuup_data) - 4);
+ memcpy(rnp->oph.msg->l3h, iuup_data + 4, sizeof(iuup_data) - 4);
+ OSMO_ASSERT((rc = osmo_iuup_rnl_prim_down(iui, rnp)) == 0);
+ OSMO_ASSERT(_init_ack_transport_rx_prim == 2); /* We receive data in TNL */
+
+ osmo_iuup_instance_free(iui);
+}
+
+/****************************
+ * test_passive_init
+ ****************************/
+static unsigned int _passive_init_user_rx_prim = 0;
+static int _passive_init_user_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_rnl_prim *irp = (struct osmo_iuup_rnl_prim *)oph;
+ struct msgb *msg = oph->msg;
+
+ printf("%s()\n", __func__);
+
+ OSMO_ASSERT(OSMO_PRIM_HDR(&irp->oph) == OSMO_PRIM(OSMO_IUUP_RNL_DATA, PRIM_OP_INDICATION));
+ printf("User: UL len=%u: %s\n", msgb_l3len(msg),
+ osmo_hexdump((const unsigned char *) msgb_l3(msg), msgb_l3len(msg)));
+
+ _passive_init_user_rx_prim++;
+ msgb_free(oph->msg);
+ return 0;
+}
+static int _passive_init_transport_rx_prim = 0;
+static int _passive_init_transport_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ struct osmo_iuup_tnl_prim *itp = (struct osmo_iuup_tnl_prim *)oph;
+ struct msgb *msg;
+
+ printf("%s()\n", __func__);
+ msg = oph->msg;
+ OSMO_ASSERT(OSMO_PRIM_HDR(&itp->oph) == OSMO_PRIM(OSMO_IUUP_TNL_UNITDATA, PRIM_OP_REQUEST));
+ printf("Transport: DL len=%u: %s\n", msgb_l2len(msg),
+ osmo_hexdump((const unsigned char *) msgb_l2(msg), msgb_l2len(msg)));
+ _passive_init_transport_rx_prim++;
+
+ msgb_free(msg);
+ return 0;
+}
+void test_passive_init(void)
+{
+ /* Here we check the passive INIT code path, aka receiving INIT and returning INIT_ACK/NACK */
+ struct osmo_iuup_instance *iui;
+ struct osmo_iuup_rnl_prim *rnp;
+ struct osmo_iuup_tnl_prim *tnp;
+ struct iuup_pdutype14_hdr *hdr14;
+ struct iuup_pdutype0_hdr *hdr0;
+ int rc;
+
+ iui = osmo_iuup_instance_alloc(iuup_test_ctx, __func__);
+ OSMO_ASSERT(iui);
+ osmo_iuup_instance_set_user_prim_cb(iui, _passive_init_user_prim_cb, NULL);
+ osmo_iuup_instance_set_transport_prim_cb(iui, _passive_init_transport_prim_cb, NULL);
+
+ clock_override_set(0, 0);
+
+ /* Tx CONFIG.req */
+ rnp = osmo_iuup_rnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_RNL_CONFIG, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ rnp->u.config = def_configure_req;
+ rnp->u.config.active = false;
+ OSMO_ASSERT((rc = osmo_iuup_rnl_prim_down(iui, rnp)) == 0);
+ /* STATUS-INIT.req is NOT transmitted automatically: */
+ OSMO_ASSERT(_passive_init_transport_rx_prim == 0);
+
+ /* Send Init: */
+ tnp = osmo_iuup_tnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION, IUUP_MSGB_SIZE);
+ tnp->oph.msg->l2h = msgb_put(tnp->oph.msg, sizeof(iuup_initialization));
+ hdr14 = (struct iuup_pdutype14_hdr *)msgb_l2(tnp->oph.msg);
+ memcpy(hdr14, iuup_initialization, sizeof(iuup_initialization));
+ OSMO_ASSERT((rc = osmo_iuup_tnl_prim_up(iui, tnp)) == 0);
+ OSMO_ASSERT(_passive_init_transport_rx_prim == 1); /* We receive an Init ACK */
+ OSMO_ASSERT(_passive_init_user_rx_prim == 0);
+
+ /* Send IuUP incoming data to the implementation: */
+ tnp = osmo_iuup_tnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_TNL_UNITDATA, PRIM_OP_INDICATION, IUUP_MSGB_SIZE);
+ tnp->oph.msg->l2h = msgb_put(tnp->oph.msg, sizeof(iuup_data));
+ hdr0 = (struct iuup_pdutype0_hdr *)msgb_l2(tnp->oph.msg);
+ memcpy(hdr0, iuup_data, sizeof(iuup_data));
+ OSMO_ASSERT((rc = osmo_iuup_tnl_prim_up(iui, tnp)) == 0);
+ /* We receive it in RNL: */
+ OSMO_ASSERT(_passive_init_user_rx_prim == 1);
+
+ /* Now in opposite direction, RNL->[IuuP]->TNL: */
+ rnp = osmo_iuup_rnl_prim_alloc(iuup_test_ctx, OSMO_IUUP_RNL_DATA, PRIM_OP_REQUEST, IUUP_MSGB_SIZE);
+ rnp->u.data.rfci = 0;
+ rnp->u.data.frame_nr = 1;
+ rnp->u.data.fqc = IUUP_FQC_FRAME_GOOD;
+ rnp->oph.msg->l3h = msgb_put(rnp->oph.msg, sizeof(iuup_data) - 4);
+ memcpy(rnp->oph.msg->l3h, iuup_data + 4, sizeof(iuup_data) - 4);
+ OSMO_ASSERT((rc = osmo_iuup_rnl_prim_down(iui, rnp)) == 0);
+ OSMO_ASSERT(_passive_init_transport_rx_prim == 2); /* We receive data in TNL */
+
+ osmo_iuup_instance_free(iui);
+}
+
+int main(int argc, char **argv)
+{
+ iuup_test_ctx = talloc_named_const(NULL, 0, "iuup_test");
+ osmo_init_logging2(iuup_test_ctx, NULL);
+ log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
+ log_set_print_category(osmo_stderr_target, 1);
+ log_set_print_category_hex(osmo_stderr_target, 0);
+ log_set_use_color(osmo_stderr_target, 0);
+ log_set_category_filter(osmo_stderr_target, DLIUUP, 1, LOGL_DEBUG);
+ osmo_fsm_log_addr(false);
+
+ osmo_gettimeofday_override = true;
+
+ test_crc();
+ test_tinit_timeout_retrans();
+ test_init_nack_retrans();
+ test_init_ack();
+ test_passive_init();
+
+ printf("OK.\n");
+}
diff --git a/tests/iuup/iuup_test.ok b/tests/iuup/iuup_test.ok
new file mode 100644
index 0000000..5423096
--- /dev/null
+++ b/tests/iuup/iuup_test.ok
@@ -0,0 +1,45 @@
+=== start: test_crc ===
+iuup_initialization: Header CRC = 0x37
+iuup_initialization: Payload CRC = 0x399
+iuup_initialization_ack: Header CRC = 0x09
+iuup_initialization_ack: Payload CRC = 0x399
+=== end: test_crc ===
+sys={0.000000}, clock_override_set
+_tinit_timeout_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+sys={1.000000}, clock_override_set
+_tinit_timeout_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+sys={2.000000}, clock_override_set
+_tinit_timeout_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+sys={3.000000}, clock_override_set
+_tinit_timeout_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+sys={4.000000}, clock_override_set
+_tinit_timeout_retrans_user_prim_cb()
+sys={0.000000}, clock_override_set
+_init_nack_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+_init_nack_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+_init_nack_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+_init_nack_retrans_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+_init_nack_retrans_user_prim_cb()
+sys={0.000000}, clock_override_set
+_init_ack_transport_prim_cb()
+Transport: DL len=22: e0 00 df 99 16 00 51 67 3c 01 27 00 00 82 00 00 00 17 10 00 01 00
+_init_ack_user_prim_cb()
+User: UL len=31: 08 55 6d 94 4c 71 a1 a0 81 e7 ea d2 04 24 44 80 00 0e cd 82 b8 11 18 00 00 97 c4 79 4e 77 40
+_init_ack_transport_prim_cb()
+Transport: DL len=35: 01 00 e3 ff 08 55 6d 94 4c 71 a1 a0 81 e7 ea d2 04 24 44 80 00 0e cd 82 b8 11 18 00 00 97 c4 79 4e 77 40
+sys={0.000000}, clock_override_set
+_passive_init_transport_prim_cb()
+Transport: DL len=4: e4 00 24 00
+_passive_init_user_prim_cb()
+User: UL len=31: 08 55 6d 94 4c 71 a1 a0 81 e7 ea d2 04 24 44 80 00 0e cd 82 b8 11 18 00 00 97 c4 79 4e 77 40
+_passive_init_transport_prim_cb()
+Transport: DL len=35: 01 00 e3 ff 08 55 6d 94 4c 71 a1 a0 81 e7 ea d2 04 24 44 80 00 0e cd 82 b8 11 18 00 00 97 c4 79 4e 77 40
+OK.
diff --git a/tests/logging/logging_vty_test.vty b/tests/logging/logging_vty_test.vty
index 99e8781..c74accd 100644
--- a/tests/logging/logging_vty_test.vty
+++ b/tests/logging/logging_vty_test.vty
@@ -54,7 +54,7 @@
logging print level (0|1)
logging print file (0|1|basename) [last]
logging set-log-mask MASK
- logging level (aa|bb|ccc|dddd|eee|lglobal|llapd|linp|lmux|lmi|lmib|lsms|lctrl|lgtp|lstats|lgsup|loap|lss7|lsccp|lsua|lm3ua|lmgcp|ljibuf|lrspro|lns|lbssgp|lnsdata|lnssignal) (debug|info|notice|error|fatal)
+ logging level (aa|bb|ccc|dddd|eee|lglobal|llapd|linp|lmux|lmi|lmib|lsms|lctrl|lgtp|lstats|lgsup|loap|lss7|lsccp|lsua|lm3ua|lmgcp|ljibuf|lrspro|lns|lbssgp|lnsdata|lnssignal|liuup) (debug|info|notice|error|fatal)
logging level set-all (debug|info|notice|error|fatal)
logging level force-all (debug|info|notice|error|fatal)
no logging level force-all
@@ -472,7 +472,7 @@
logging_vty_test# list
...
- logp (aa|bb|ccc|dddd|eee|lglobal|llapd|linp|lmux|lmi|lmib|lsms|lctrl|lgtp|lstats|lgsup|loap|lss7|lsccp|lsua|lm3ua|lmgcp|ljibuf|lrspro|lns|lbssgp|lnsdata|lnssignal) (debug|info|notice|error|fatal) .LOGMESSAGE
+ logp (aa|bb|ccc|dddd|eee|lglobal|llapd|linp|lmux|lmi|lmib|lsms|lctrl|lgtp|lstats|lgsup|loap|lss7|lsccp|lsua|lm3ua|lmgcp|ljibuf|lrspro|lns|lbssgp|lnsdata|lnssignal|liuup) (debug|info|notice|error|fatal) .LOGMESSAGE
...
logging_vty_test# logp?
@@ -507,6 +507,7 @@
lbssgp GPRS BSSGP layer
lnsdata GPRS NS layer data PDU
lnssignal GPRS NS layer signal PDU
+ liuup Iu UP layer
logging_vty_test# logp lglobal ?
debug Log debug messages and higher levels
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 92c4e39..882203e 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -458,3 +458,9 @@
cat $abs_srcdir/time_cc/time_cc_test.ok > expout
AT_CHECK([$abs_top_builddir/tests/time_cc/time_cc_test], [0], [expout], [ignore])
AT_CLEANUP
+
+AT_SETUP([iuup])
+AT_KEYWORDS([iuup])
+cat $abs_srcdir/iuup/iuup_test.ok > expout
+AT_CHECK([$abs_top_builddir/tests/iuup/iuup_test], [0], [expout], [ignore])
+AT_CLEANUP
--
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: Ibe356fa7b1abaca0091e368db8478e79c09c6cb0
Gerrit-Change-Number: 6357
Gerrit-PatchSet: 7
Gerrit-Owner: laforge <laforge at osmocom.org>
Gerrit-Reviewer: Hoernchen <ewild at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillmann at sysmocom.de>
Gerrit-Reviewer: dexter <pmaier at sysmocom.de>
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at gnumonks.org>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: lynxis lazus <lynxis at fe80.eu>
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: osmith <osmith at sysmocom.de>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
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