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osmo-hnodeb
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Initial implementation of LowerLayer UD Socket 

The LLSK socket is an interface allowing thid-parties to implement and
hook their RLC/MAC/RRC stack to osmo-hnodbe, which takes care of
interconnection with the rest of the RAN and core network (Iuh, RTP,
GTP-U, etc.).

Related: SYS#5516
Change-Id: Icaabb2206d6f141d4fba47dedf71f8ec37e6257d
This commit is contained in:
Pau Espin 2021-11-29 12:42:38 +01:00
parent d8da64bb46
commit cd1baf0649
19 changed files with 1083 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
doc/hnodeb.msc Normal file
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@ -0,0 +1,86 @@
msc {
hscale="3";
ue [label="Customer"], trx [label="Lower Layer TRX"], hnodeb [label="osmo-hnodeb"], hnbgw [label="HNBGW"], ggsn [label="GGSN"], mgw [label="MGW"];
|||;
--- [ label = "hNodeB starts up" ];
hnodeb => hnbgw [label="HNBAP HnbRegisterRequest"];
hnodeb <= hnbgw [label="HNBAP HnbRegisterResponse"];
|||;
...;
|||;
|||;
--- [ label = "TRX starts up & connects to hNodeB" ];
trx => hnodeb [label="CTL-HELLO.req(SAPI=CTL, VERSION)"];
trx <= hnodeb [label="CTL-HELLO.cnf(SAPI=CTL, VERSION)"];
trx => hnodeb [label="CTL-HELLO.req(SAPI=IUH, VERSION)"];
trx <= hnodeb [label="CTL-HELLO.cnf(SAPI=IUH, VERSION)"];
trx => hnodeb [label="CTL-HELLO.req(SAPI=GTP, VERSION)"];
trx <= hnodeb [label="CTL-HELLO.cnf(SAPI=GTP, VERSION)"];
trx => hnodeb [label="CTL-HELLO.req(SAPI=AUDIO, VERSION)"];
trx <= hnodeb [label="CTL-HELLO.cnf(SAPI=AUDIO, VERSION)"];
trx <= hnodeb [label="IUH-CONFIGURE.ind(PLMN,LAC,SAC,RAC,CI,RNC_ID from HnbRegisterResponse)"];
|||;
...;
|||;
|||;
--- [ label = "Subscriber Paging" ];
hnodeb <= hnbgw [label="RUA-InitiatingMessage(RANAP Paging)"];
trx <= hnodeb [label="IUH-UNITDATA.ind[RANAP Paging]"];
|||;
...;
|||;
|||;
--- [ label = "Subscriber Sign Up" ];
ue => trx [label="CM Service Req"];
trx => hnodeb [label="IUH-CONN_ESTABLISH.req[RANAP CM ServiceReq]"];
hnodeb => hnbgw [label="HNBAP UE Register Req(IMSI?)"];
hnodeb <= hnbgw [label="HNBAP UE Register Acc(context_id)"];
hnodeb => hnbgw [label="RUA-Connect(RANAP-GMM ServiceRequest)"];
hnodeb <= hnbgw [label="RUA-DirectTransfer(RANAP GMM ServiceAccept)"];
trx <= hnodeb [label="IUH-CONN_ESTABLISH.cnf(context_id])"];
trx <= hnodeb [label="IUH-CONN_DATA.ind[context_id, RANAP GMM ServiceAccept]"];
--- [ label = "Subscriber set up PS data:" ];
hnodeb <= hnbgw [label="RANAP RAB-Assignment Request(TEI, ADDR)"];
trx <= hnodeb [label="IUH-CONN_DATA.ind[RANAP RAB-Assignment Request(remote_ip, remote_port, remote_tei)]"];
trx => hnodeb [label="GTP-CONN_ESTABLISH.req(remote_ip,remote_port,remote_tei)"];
... [ label = "HnodeB sets up GTP-U connection" ];
trx <= hnodeb [label="GTP-CONN_ESTABLISH.cnf(local_ip,local_port,local_tei,remote_tei)"];
|||;
...;
|||;
|||;
--- [ label = "PS data transmission over GTP-U:" ];
ue => trx [label="..."];
trx => hnodeb [label="GTP-CONN_DATA.req[remote_tei,payload]"];
hnodeb => ggsn [label="GTP-U(remote_tei, local_addr, remote_addr, payload)"];
hnodeb <= ggsn [label="GTP-U(local_tei, remote_addr, local_addr, payload)"];
trx <= hnodeb [label="GTP-CONN_DATA.ind[local_tei,payload]"];
ue <= trx [label="..."];
|||;
...;
|||;
--- [ label = "MO/MT PS data Release:" ];
ue => trx [label="..."];
trx => hnodeb [label="IUH-CONN_DATA.req[RANAP IU Release Request]"];
hnodeb => hnbgw [label="RANAP IU Release Request"];
hnodeb <= hnbgw [label="RANAP IU Release Command"];
trx <= hnodeb [label="IUH-CONN_DATA.ind[RANAP IU Release Command]"];
...;
trx => hnodeb [label="GTP-CONN_RELEASE.req(remote_tei)"];
trx => hnodeb [label="IUH-CONN_RELEASE.req[RANAP IU Release Complete]"];
hnodeb => hnbgw [label="RUA-Disconnect(RANAP IU Release Complete)"];
|||;
...;
|||;
--- [ label = "For voice call (CS): Similar to SAPI_GTP, but using SAPI_AUDIO and osmo-hnodeb sets up RTP stream" ];
|||;
...;
|||;
--- [ label = "Iuh SCTP link goes down" ];
trx <= hnodeb [label="UD socket is closed, osmo-hnodeb cleans up state and attempts reconnect. lowerlayer can re-connect and wait for next CONFIGURE.req"];
}

2
include/osmocom/hnodeb/Makefile.am
View File

@ -1,8 +1,10 @@
noinst_HEADERS = \
hnb_shutdown_fsm.h \
hnb_prim.h \
hnbap.h \
hnodeb.h \
iuh.h \
llsk.h \
ranap.h \
rua.h \
vty.h \

165
include/osmocom/hnodeb/hnb_prim.h Normal file
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@ -0,0 +1,165 @@
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/lienses/>.
*
*/
/* This header includes information relative to protocol and message structure
* spoken between osmo-hnodeb, facing the HNBGW and other RAN/CN nodes, and a
* Lower Layer program (aka the TRX), implementing the RLC/MAC/RRC towards the
* UE in the Uu interface. This protocol is usually referenced as HNBLLIF. The
* protocol is primitive based and follows the concepts described in ITU-T
* X.210, with osmo-hnodeb taking the "service provider" role and the TRX taking
* the "user" role in this case.
*/
#pragma once
#include <inttypes.h>
#include <unistd.h>
#include <stdint.h>
#include <osmocom/core/prim.h>
#define HNB_PRIM_API_VERSION 0
#define HNB_PRIM_UD_SOCK_DEFAULT "/tmp/hnb_prim_sock"
#define HNB_PRIM_SAPI_IUH 1
#define HNB_PRIM_SAPI_GTP 2
#define HNB_PRIM_SAPI_AUDIO 3
/*! \brief HNB_IUH primitives */
enum hnb_iuh_prim_type {
HNB_IUH_PRIM_CONFIGURE,
HNB_IUH_PRIM_CONN_ESTABLISH,
HNB_IUH_PRIM_CONN_RELEASE,
HNB_IUH_PRIM_CONN_DATA,
HNB_IUH_PRIM_UNITDATA,
_HNB_IUH_PRIM_MAX
};
/* HNB_IUH_PRIM_CONFIGURE.ind, DL */
struct hnb_iuh_configure_ind_param {
uint16_t mcc;
uint16_t mnc;
uint16_t cell_identity;
uint16_t lac;
uint8_t rac;
uint8_t reserved;
uint16_t sac;
uint16_t rnc_id;
} __attribute__ ((packed));
/* HNB_HNB_IUH_PRIM_CONN_ESTABLISH.ind, DL */
struct hnb_iuh_conn_establish_ind_param {
uint32_t context_id;
uint8_t domain;
uint8_t cause;
uint8_t csg_membership_status;
uint8_t spare1;
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_HNB_IUH_PRIM_CONN_ESTABLISH.req, UL */
struct hnb_iuh_conn_establish_req_param {
uint32_t context_id;
uint8_t domain;
uint8_t est_cause;
/* TODO: Check if we can copy it as an encoded buffer RRC <-> RUA
* RRC: 3GPP TS 25.331 10.3.1.6 Intra Domain NAS Node Selector
* RUA: 3GPP TS 25.468 9.2.4 */
uint16_t reserved; //uint16_t nas_node_selector_bitlen;
//uint8_t nas_node_selector[128]; /* TODO: check whether we can decrease this buffer size */
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_HNB_IUH_PRIM_CONN_ESTABLISH.cnf, DL */
struct hnb_iuh_conn_establish_cnf_param {
uint32_t context_id;
uint8_t domain;
uint8_t cause; /* 0 = success, !0 = failure */
} __attribute__ ((packed));
/* HNB_IUH_PRIM_CONN_RELEASE.req, DL */
struct hnb_iuh_conn_release_req_param {
uint32_t context_id;
uint8_t domain;
uint8_t spare1;
uint8_t cause_type; /* 3GPP TS 25.468 9.2.7 Cause */
uint8_t cause; /* 3GPP TS 25.468 9.2.7 Cause */
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_IUH_PRIM_CONN_RELEASE.ind, UL */
struct hnb_iuh_conn_release_ind_param {
uint32_t context_id;
uint8_t domain;
uint8_t spare1;
uint8_t cause_type;
uint8_t cause;
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_IUH_PRIM_CONN_DATA.req, DL */
struct hnb_iuh_conn_data_req_param {
uint32_t context_id;
uint8_t domain;
uint8_t spare1;
uint16_t spare2;
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_IUH_PRIM_CONN_DATA.ind, UL */
struct hnb_iuh_conn_data_ind_param {
uint32_t context_id;
uint8_t domain;
uint8_t spare1;
uint16_t spare2;
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_IUH_PRIM_UNITDATA.req, UL */
struct hnb_iuh_unitdata_req_param {
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
/* HNB_IUH_PRIM_UNITDATA.ind, DL */
struct hnb_iuh_unitdata_ind_param {
uint32_t data_len; /* RANAP message length in bytes */
uint8_t data[0]; /* RANAP message */
} __attribute__ ((packed));
struct hnb_iuh_prim {
struct osmo_prim_hdr hdr;
union {
struct hnb_iuh_configure_ind_param configure_ind;
struct hnb_iuh_conn_establish_req_param conn_establish_req;
struct hnb_iuh_conn_establish_ind_param conn_establish_ind;
struct hnb_iuh_conn_establish_cnf_param conn_establish_cnf;
struct hnb_iuh_conn_release_req_param conn_release_req;
struct hnb_iuh_conn_release_ind_param conn_release_ind;
struct hnb_iuh_conn_data_req_param conn_data_req;
struct hnb_iuh_conn_data_ind_param conn_data_ind;
struct hnb_iuh_unitdata_req_param unitdata_req;
struct hnb_iuh_unitdata_ind_param unitdata_ind;
} u;
} __attribute__ ((packed));

41
include/osmocom/hnodeb/hnodeb.h
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@ -19,29 +19,51 @@
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <asn1c/asn1helpers.h>
#include <osmocom/core/select.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/write_queue.h>
#include <osmocom/core/logging.h>
#include <osmocom/gsm/gsm23003.h>
#include <osmocom/gsm/protocol/gsm_23_003.h>
#include <osmocom/netif/stream.h>
#include <osmocom/hnodeb/llsk.h>
enum {
DMAIN,
DHNBAP,
DRUA,
DRANAP,
DSCTP,
DLLSK,
};
extern const struct log_info hnb_log_info;
struct hnb_chan {
int is_ps;
struct hnb;
struct hnb_ue {
struct llist_head list; /* Item in struct hnb->ue_list */
struct hnb *hnb; /* backpointer */
uint32_t conn_id;
char *imsi;
char imsi[OSMO_IMSI_BUF_SIZE];
struct hnb_ue_cs_ctx {
bool active; /* Is this chan in use? */
bool conn_est_cnf_pending; /* Did we send CONN_ESTABLISH_CNF to lower layers? */
} conn_cs;
struct hnb_ue_ps_ctx {
bool active; /* Is this chan in use? */
bool conn_est_cnf_pending; /* Did we send CONN_ESTABLISH_CNF to lower layers? */
} conn_ps;
};
struct hnb_ue *hnb_ue_alloc(struct hnb *hnb, uint32_t conn_id);
void hnb_ue_free(struct hnb_ue *ue);
void hnb_ue_reset_chan(struct hnb_ue *ue, bool is_ps);
struct hnb {
char *identity; /* HNB-Identity */
@ -58,20 +80,27 @@ struct hnb {
struct osmo_stream_cli *client;
} iuh;
/* Lower Layer UD socket */
struct osmo_prim_srv_link *llsk_link;
struct osmo_prim_srv *llsk;
uint8_t llsk_valid_sapi_mask;
struct osmo_timer_list llsk_defer_configure_ind_timer;
uint16_t rnc_id;
bool registered; /* Set to true once HnbRegisterAccept was received from Iuh. rnc_id is valid iif registered==true */
uint32_t ctx_id;
struct osmo_fsm_inst *shutdown_fi; /* FSM instance to manage shutdown procedure during process exit */
bool shutdown_fi_exit_proc; /* exit process when shutdown_fsm is finished? */
struct {
struct hnb_chan *chan;
} cs;
struct llist_head ue_list; /* list of struct hnb_ue */
};
struct hnb *hnb_alloc(void *tall_ctx);
void hnb_free(struct hnb *hnb);
struct hnb_ue *hnb_find_ue_by_id(const struct hnb *hnb, uint32_t conn_id);
struct hnb_ue *hnb_find_ue_by_imsi(const struct hnb *hnb, char *imsi);
extern void *tall_hnb_ctx;
extern struct hnb *g_hnb;

44
include/osmocom/hnodeb/llsk.h Normal file
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@ -0,0 +1,44 @@
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/lienses/>.
*
*/
#pragma once
#include <stdbool.h>
#include <stdint.h>
#include <osmocom/core/utils.h>
#include <osmocom/netif/prim.h>
#include <osmocom/hnodeb/hnb_prim.h>
struct hnb;
int hnb_llsk_alloc(struct hnb *hnb);
bool hnb_llsk_connected(const struct hnb *hnb);
bool hnb_llsk_can_be_configured(struct hnb *hnb);
extern const struct value_string hnb_iuh_prim_type_names[];
int llsk_rx_iuh(struct hnb *hnb, struct osmo_prim_hdr *oph);
int llsk_iuh_tx_configure_ind(struct hnb *hnb);
struct hnb_iuh_prim *hnb_iuh_makeprim_conn_establish_cnf(uint32_t context_id, uint8_t domain,
uint8_t cause);
struct hnb_iuh_prim *hnb_iuh_makeprim_conn_data_ind(uint32_t context_id,
uint8_t domain,
const uint8_t *data,
uint32_t data_len);
struct hnb_iuh_prim *hnb_iuh_makeprim_unitdata_ind(const uint8_t *data, uint32_t data_len);

2
include/osmocom/hnodeb/ranap.h
View File

@ -19,4 +19,6 @@
*/
#pragma once
#include <osmocom/core/msgb.h>
struct msgb *hnb_ranap_msgb_alloc(void);

3
include/osmocom/hnodeb/rua.h
View File

@ -22,6 +22,9 @@
#include <asn1c/ANY.h>
struct hnb;
struct hnb_ue;
struct msgb;
struct msgb *hnb_rua_msgb_alloc(void);
int hnb_rua_rx(struct hnb *hnb, struct msgb *msg);

1
include/osmocom/hnodeb/vty.h
View File

@ -27,6 +27,7 @@
enum hnb_vty_nodes {
HNODEB_NODE = _LAST_OSMOVTY_NODE,
IUH_NODE,
LLSK_NODE,
};
void hnb_vty_init(void);

2
src/osmo-hnodeb/Makefile.am
View File

@ -35,6 +35,8 @@ osmo_hnodeb_SOURCES = \
hnb.c \
hnb_shutdown_fsm.c \
iuh.c \
llsk.c \
llsk_iuh.c \
ranap.c \
rua.c \
vty.c \

7
src/osmo-hnodeb/debug.c
View File

@ -24,7 +24,7 @@
static const struct log_info_cat log_cat[] = {
[DMAIN] = {
.name = "DMAIN", .loglevel = LOGL_NOTICE, .enabled = 1,
.color = "",
.color = "\033[1;37m",
.description = "Main program",
},
[DHNBAP] = {
@ -47,6 +47,11 @@ static const struct log_info_cat log_cat[] = {
.color = "\033[1;36m",
.description = "SCTP connection on the Iuh link",
},
[DLLSK] = {
.name = "DLLSK", .loglevel = LOGL_NOTICE, .enabled = 1,
.color = "\033[1;31m",
.description = "Lower Layer Unix Domain Socket",
},
};
const struct log_info hnb_log_info = {

75
src/osmo-hnodeb/hnb.c
View File

@ -23,10 +23,12 @@
#include <osmocom/core/socket.h>
#include <osmocom/core/talloc.h>
#include <osmocom/netif/stream.h>
#include <osmocom/netif/prim.h>
#include <osmocom/hnodeb/hnodeb.h>
#include <osmocom/hnodeb/iuh.h>
#include <osmocom/hnodeb/hnb_shutdown_fsm.h>
#include <osmocom/hnodeb/hnb_prim.h>
struct hnb *hnb_alloc(void *tall_ctx)
@ -37,15 +39,18 @@ struct hnb *hnb_alloc(void *tall_ctx)
if (!hnb)
return NULL;
INIT_LLIST_HEAD(&hnb->ue_list);
hnb->identity = talloc_strdup(hnb, "OsmoHNodeB");
hnb->plmn = (struct osmo_plmn_id){
.mcc = 1,
.mnc = 1,
};
hnb->shutdown_fi = osmo_fsm_inst_alloc(&hnb_shutdown_fsm, hnb, hnb,
LOGL_INFO, NULL);
hnb_llsk_alloc(hnb);
hnb_iuh_alloc(hnb);
return hnb;
@ -53,10 +58,78 @@ struct hnb *hnb_alloc(void *tall_ctx)
void hnb_free(struct hnb *hnb)
{
struct hnb_ue *ue, *ue_tmp;
llist_for_each_entry_safe(ue, ue_tmp, &hnb->ue_list, list)
hnb_ue_free(ue);
if (hnb->shutdown_fi) {
osmo_fsm_inst_free(hnb->shutdown_fi);
hnb->shutdown_fi = NULL;
}
hnb_iuh_free(hnb);
osmo_timer_del(&hnb->llsk_defer_configure_ind_timer);
osmo_prim_srv_link_free(hnb->llsk_link);
hnb->llsk_link = NULL;
talloc_free(hnb);
}
struct hnb_ue *hnb_ue_alloc(struct hnb *hnb, uint32_t conn_id)
{
struct hnb_ue *ue;
ue = talloc_zero(hnb, struct hnb_ue);
if (!ue)
return NULL;
ue->hnb = hnb;
ue->conn_id = conn_id;
llist_add(&ue->list, &hnb->ue_list);
return ue;
}
void hnb_ue_free(struct hnb_ue *ue)
{
llist_del(&ue->list);
talloc_free(ue);
}
void hnb_ue_reset_chan(struct hnb_ue *ue, bool is_ps)
{
if (is_ps)
ue->conn_ps = (struct hnb_ue_ps_ctx){0};
else
ue->conn_cs = (struct hnb_ue_cs_ctx){0};
}
struct hnb_ue *hnb_find_ue_by_id(const struct hnb *hnb, uint32_t conn_id)
{
struct hnb_ue *ue;
llist_for_each_entry(ue, &hnb->ue_list, list) {
if (ue->conn_id != conn_id)
continue;
return ue;
}
return NULL;
}
struct hnb_ue *hnb_find_ue_by_imsi(const struct hnb *hnb, char *imsi)
{
struct hnb_ue *ue;
if (!imsi || imsi[0] == '\0')
return NULL;
llist_for_each_entry(ue, &hnb->ue_list, list) {
if (ue->imsi[0] == '\0')
continue;
if (strncmp(&ue->imsi[0], imsi, ARRAY_SIZE(ue->imsi)) != 0)
continue;
return ue;
}
return NULL;
}

5
src/osmo-hnodeb/hnb_shutdown_fsm.c
View File

@ -34,6 +34,11 @@
static void st_none_on_enter(struct osmo_fsm_inst *fi, uint32_t prev_state)
{
struct hnb *hnb = (struct hnb *)fi->priv;
/* Reset state: */
hnb->registered = false;
hnb->rnc_id = 0;
hnb_iuh_connect(hnb); /* Start reconnect once we are done with shutdown and we didn't exit process */
}

12
src/osmo-hnodeb/hnbap.c
View File

@ -33,7 +33,9 @@
#include <osmocom/hnodeb/hnbap.h>
#include <osmocom/hnodeb/hnodeb.h>
#include <osmocom/hnodeb/iuh.h>
#include <osmocom/hnodeb/hnb_prim.h>
#include <osmocom/hnodeb/hnb_shutdown_fsm.h>
#include <osmocom/hnodeb/llsk.h>
static int hnb_rx_hnb_register_acc(struct hnb *hnb, ANY_t *in)
{
@ -42,13 +44,19 @@ static int hnb_rx_hnb_register_acc(struct hnb *hnb, ANY_t *in)
rc = hnbap_decode_hnbregisteraccepties(&accept, in);
if (rc < 0) {
hnb_shutdown(hnb, "Failed decoding HnbRegisterAccept IEs", false);
return rc;
}
hnb->rnc_id = accept.rnc_id;
hnb->registered = true;
LOGP(DHNBAP, LOGL_INFO, "Rx HNB Register accept with RNC ID %u\n", hnb->rnc_id);
hnbap_free_hnbregisteraccepties(&accept);
return 0;
if (hnb_llsk_can_be_configured(hnb))
llsk_iuh_tx_configure_ind(hnb);
return rc;
}
static int hnb_rx_hnb_register_rej(struct hnb *hnb, ANY_t *in)
@ -56,6 +64,8 @@ static int hnb_rx_hnb_register_rej(struct hnb *hnb, ANY_t *in)
int rc;
HNBAP_HNBRegisterRejectIEs_t reject;
hnb->registered = false;
rc = hnbap_decode_hnbregisterrejecties(&reject, in);
if (rc < 0) {
LOGP(DHNBAP, LOGL_NOTICE, "Rx HNB Register Reject: parse failure\n");

134
src/osmo-hnodeb/llsk.c Normal file
View File

@ -0,0 +1,134 @@
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/lienses/>.
*
*/
#include <errno.h>
#include <osmocom/core/prim.h>
#include <osmocom/core/logging.h>
#include <osmocom/hnodeb/hnodeb.h>
#include <osmocom/hnodeb/llsk.h>
#include <osmocom/hnodeb/hnb_prim.h>
#include <osmocom/hnodeb/hnb_shutdown_fsm.h>
static int llsk_opened_cb(struct osmo_prim_srv *srv)
{
struct hnb *hnb = (struct hnb *)osmo_prim_srv_get_priv(srv);
if (hnb->llsk) {
LOGP(DLLSK, LOGL_ERROR, "New connection opened while one is already active, dropping it\n");
osmo_prim_srv_close(srv);
return 0;
}
LOGP(DLLSK, LOGL_NOTICE, "LLSK conn is UP\n");
hnb->llsk = srv;
return 0;
}
static int llsk_closed_cb(struct osmo_prim_srv *srv)
{
struct hnb *hnb = (struct hnb *)osmo_prim_srv_get_priv(srv);
if (!hnb->llsk) {
LOGP(DLLSK, LOGL_ERROR, "closed_cb received but we have no active llsk conn!\n");
return 0;
}
/* If a later conn different than active one is dropped (because we closed it): */
if (hnb->llsk != srv)
return 0;
LOGP(DLLSK, LOGL_NOTICE, "LLSK conn is DOWN\n");
hnb->llsk = NULL;
hnb->llsk_valid_sapi_mask = 0x0;
osmo_timer_del(&hnb->llsk_defer_configure_ind_timer);
hnb_shutdown(hnb, "LLSK conn dropped", false);
return 0;
}
bool hnb_llsk_connected(const struct hnb *hnb)
{
return !!hnb->llsk;
}
bool hnb_llsk_can_be_configured(struct hnb *hnb)
{
if (!hnb->registered)
return false;
if (!hnb->llsk)
return false;
if (hnb->llsk_valid_sapi_mask & (1 << HNB_PRIM_SAPI_IUH))
return true;
return false;
}
static void llsk_defer_configure_ind_timer_cb(void *data)
{
struct hnb *hnb = (struct hnb *)data;
llsk_iuh_tx_configure_ind(hnb);
}
static int llsk_rx_sapi_version_cb(struct osmo_prim_srv *prim_srv, uint32_t sapi, uint16_t rem_version)
{
struct hnb *hnb = (struct hnb *)osmo_prim_srv_get_priv(prim_srv);
if (sapi > sizeof(hnb->llsk_valid_sapi_mask)*8 - 1)
return -1;
hnb->llsk_valid_sapi_mask |= (1 << sapi);
/* Defer CONFIGURE.req after we have confirmed the versions */
if (hnb_llsk_can_be_configured(hnb))
osmo_timer_schedule(&hnb->llsk_defer_configure_ind_timer, 0, 0);
return rem_version;
}
static int llsk_rx_cb(struct osmo_prim_srv *srv, struct osmo_prim_hdr *oph)
{
struct hnb *hnb = (struct hnb *)osmo_prim_srv_get_priv(srv);
LOGP(DLLSK, LOGL_DEBUG, "llsk_rx_cb() SAP=%u (%u bytes): %s\n", oph->sap,
msgb_length(oph->msg), osmo_hexdump(msgb_data(oph->msg), msgb_length(oph->msg)));
switch (oph->sap) {
case HNB_PRIM_SAPI_IUH:
return llsk_rx_iuh(hnb, oph);
case HNB_PRIM_SAPI_GTP:
case HNB_PRIM_SAPI_AUDIO:
LOGP(DLLSK, LOGL_ERROR, "Rx SAPI %u not yet implemented (len=%u)\n",
oph->sap, msgb_length(oph->msg));
return -EINVAL;
default:
LOGP(DLLSK, LOGL_ERROR, "Rx for unknwon SAPI %u (len=%u)\n",
oph->sap, msgb_length(oph->msg));
return -EINVAL;
}
}
int hnb_llsk_alloc(struct hnb *hnb)
{
hnb->llsk_link = osmo_prim_srv_link_alloc(hnb);
osmo_prim_srv_link_set_priv(hnb->llsk_link, hnb);
osmo_prim_srv_link_set_log_category(hnb->llsk_link, DLLSK);
osmo_prim_srv_link_set_addr(hnb->llsk_link, HNB_PRIM_UD_SOCK_DEFAULT);
osmo_prim_srv_link_set_opened_conn_cb(hnb->llsk_link, llsk_opened_cb);
osmo_prim_srv_link_set_closed_conn_cb(hnb->llsk_link, llsk_closed_cb);
osmo_prim_srv_link_set_rx_sapi_version_cb(hnb->llsk_link, llsk_rx_sapi_version_cb);
osmo_prim_srv_link_set_rx_cb(hnb->llsk_link, llsk_rx_cb);
osmo_timer_setup(&hnb->llsk_defer_configure_ind_timer, llsk_defer_configure_ind_timer_cb, hnb);
return 0;
}

347
src/osmo-hnodeb/llsk_iuh.c Normal file
View File

@ -0,0 +1,347 @@
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/lienses/>.
*
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <inttypes.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/select.h>
#include <osmocom/core/socket.h>
#include <osmocom/rua/rua_msg_factory.h>
#include <osmocom/hnodeb/hnodeb.h>
#include <osmocom/hnodeb/llsk.h>
#include <osmocom/hnodeb/hnb_prim.h>
#include <osmocom/hnodeb/iuh.h>
#include <osmocom/hnodeb/ranap.h>
static size_t llsk_iuh_prim_size_tbl[4][_HNB_IUH_PRIM_MAX] = {
[PRIM_OP_REQUEST] = {
[HNB_IUH_PRIM_CONN_ESTABLISH] = sizeof(struct hnb_iuh_conn_establish_req_param),
[HNB_IUH_PRIM_CONN_RELEASE] = sizeof(struct hnb_iuh_conn_release_req_param),
[HNB_IUH_PRIM_CONN_DATA] = sizeof(struct hnb_iuh_conn_data_req_param),
[HNB_IUH_PRIM_UNITDATA] = sizeof(struct hnb_iuh_unitdata_req_param),
},
[PRIM_OP_RESPONSE] = {},
[PRIM_OP_INDICATION] = {
[HNB_IUH_PRIM_CONFIGURE] = sizeof(struct hnb_iuh_configure_ind_param),
[HNB_IUH_PRIM_CONN_DATA] = sizeof(struct hnb_iuh_conn_data_ind_param),
[HNB_IUH_PRIM_UNITDATA] = sizeof(struct hnb_iuh_unitdata_ind_param),
},
[PRIM_OP_CONFIRM] = {
[HNB_IUH_PRIM_CONN_ESTABLISH] = sizeof(struct hnb_iuh_conn_establish_cnf_param),
},
};
static inline size_t llsk_iuh_prim_size(enum hnb_iuh_prim_type ptype, enum osmo_prim_operation op)
{
size_t val = llsk_iuh_prim_size_tbl[op][ptype];
if (val == 0) {
LOGP(DLLSK, LOGL_FATAL, "Expected prim_size != 0 for ptype=%u op=%u\n", ptype, op);
osmo_panic("Expected prim_size != 0 for ptype=%u op=%u\n", ptype, op);
}
return val;
}
const struct value_string hnb_iuh_prim_type_names[] = {
OSMO_VALUE_STRING(HNB_IUH_PRIM_CONFIGURE),
OSMO_VALUE_STRING(HNB_IUH_PRIM_CONN_ESTABLISH),
OSMO_VALUE_STRING(HNB_IUH_PRIM_CONN_RELEASE),
OSMO_VALUE_STRING(HNB_IUH_PRIM_CONN_DATA),
{ 0, NULL }
};
struct hnb_iuh_prim *hnb_iuh_prim_alloc(enum hnb_iuh_prim_type ptype, enum osmo_prim_operation op, size_t extra_len)
{
struct osmo_prim_hdr *oph;
size_t len = llsk_iuh_prim_size(ptype, op);
oph = osmo_prim_msgb_alloc(HNB_PRIM_SAPI_IUH, ptype, op, sizeof(*oph) + len + extra_len);
if (!oph)
return NULL;
msgb_put(oph->msg, len);
return (struct hnb_iuh_prim *)oph;
}
struct hnb_iuh_prim *hnb_iuh_makeprim_configure_ind(uint16_t mcc, uint16_t mnc,
uint16_t cell_identity,
uint16_t lac, uint8_t rac,
uint16_t sac, uint16_t rnc_id)
{
struct hnb_iuh_prim *iuh_prim;
iuh_prim = hnb_iuh_prim_alloc(HNB_IUH_PRIM_CONFIGURE, PRIM_OP_INDICATION, 0);
iuh_prim->u.configure_ind.mcc = mcc;
iuh_prim->u.configure_ind.mnc = mnc;
iuh_prim->u.configure_ind.cell_identity = cell_identity;
iuh_prim->u.configure_ind.lac = lac;
iuh_prim->u.configure_ind.rac = rac;
iuh_prim->u.configure_ind.sac = sac;
iuh_prim->u.configure_ind.rnc_id = rnc_id;
return iuh_prim;
}
int llsk_iuh_tx_configure_ind(struct hnb *hnb)
{
struct hnb_iuh_prim *iuh_prim;
int rc;
LOGP(DLLSK, LOGL_INFO, "Tx IUH-CONFIGURE.ind\n");
/* We are already registered, so configure the lower layers right now */
iuh_prim = hnb_iuh_makeprim_configure_ind(hnb->plmn.mcc, hnb->plmn.mnc,
hnb->cell_identity, hnb->lac,
hnb->rac, hnb->sac, hnb->rnc_id);
if ((rc = osmo_prim_srv_send(hnb->llsk, iuh_prim->hdr.msg)) < 0)
LOGP(DLLSK, LOGL_ERROR, "Failed sending IUH-CONFIGURE.ind\n");
return rc;
}
struct hnb_iuh_prim *hnb_iuh_makeprim_conn_establish_cnf(uint32_t context_id, uint8_t domain,
uint8_t cause)
{
struct hnb_iuh_prim *iuh_prim;
iuh_prim = hnb_iuh_prim_alloc(HNB_IUH_PRIM_CONN_ESTABLISH, PRIM_OP_CONFIRM, 0);
iuh_prim->u.conn_establish_cnf.context_id = context_id;
iuh_prim->u.conn_establish_cnf.domain = domain;
iuh_prim->u.conn_establish_cnf.cause = cause;
return iuh_prim;
}
struct hnb_iuh_prim *hnb_iuh_makeprim_conn_data_ind(uint32_t context_id,
uint8_t domain,
const uint8_t *data,
uint32_t data_len)
{
struct hnb_iuh_prim *iuh_prim;
iuh_prim = hnb_iuh_prim_alloc(HNB_IUH_PRIM_CONN_DATA, PRIM_OP_INDICATION, data_len);
iuh_prim->u.conn_data_ind.context_id = context_id;
iuh_prim->u.conn_data_ind.domain = domain;
iuh_prim->u.conn_data_ind.data_len = data_len;
if (data_len) {
msgb_put(iuh_prim->hdr.msg, data_len);
memcpy(iuh_prim->u.conn_data_ind.data, data, data_len);
}
return iuh_prim;
}
struct hnb_iuh_prim *hnb_iuh_makeprim_unitdata_ind(const uint8_t *data, uint32_t data_len)
{
struct hnb_iuh_prim *iuh_prim;
iuh_prim = hnb_iuh_prim_alloc(HNB_IUH_PRIM_UNITDATA, PRIM_OP_INDICATION, data_len);
iuh_prim->u.unitdata_ind.data_len = data_len;
if (data_len) {
msgb_put(iuh_prim->hdr.msg, data_len);
memcpy(iuh_prim->u.unitdata_ind.data, data, data_len);
}
return iuh_prim;
}
static int llsk_rx_iuh_conn_establish_req(struct hnb *hnb, struct hnb_iuh_conn_establish_req_param *ce_req)
{
struct hnb_ue *ue;
int rc = 0;
LOGP(DLLSK, LOGL_INFO, "Rx IUH-CONN_ESTABLISH.req ctx=%u is_ps=%u est_cause=%u data_len=%u\n",
ce_req->context_id, ce_req->domain, ce_req->est_cause, ce_req->data_len);
if (!hnb->registered) {
LOGP(DLLSK, LOGL_NOTICE, "Ignoring Rx IUH-CONN_ESTABLISH.req: HNB not registered to HNBGW!\n");
/* TODO: NACK it to lower layers */
return -EINVAL;
}
ue = hnb_find_ue_by_id(hnb, ce_req->context_id);
if (!ue) {
ue = hnb_ue_alloc(hnb, ce_req->context_id);
if (ce_req->domain) {
ue->conn_ps.active = true;
ue->conn_ps.conn_est_cnf_pending = true; /* Set to false once we receive first DT from HNBGW and send CONN_EST.cnf */
} else {
ue->conn_cs.active = true;
ue->conn_cs.conn_est_cnf_pending = true; /* Set to false once we receive first DT from HNBGW and send CONN_EST.cnf */
}
}
if (ce_req->data_len) {
struct msgb *rua_msg;
struct msgb *ranap_msg = hnb_ranap_msgb_alloc();
LOGP(DRUA, LOGL_DEBUG, "Tx RUA CONNECT ctx=%u is_ps=%u data_len=%u\n",
ce_req->context_id, ce_req->domain, ce_req->data_len);
memcpy(msgb_put(ranap_msg, ce_req->data_len), ce_req->data, ce_req->data_len);
rua_msg = rua_new_conn(ce_req->domain, ce_req->context_id, ranap_msg);
hnb_iuh_send(hnb, rua_msg);
}
return rc;
}
static int llsk_rx_iuh_conn_release_req(struct hnb *hnb, struct hnb_iuh_conn_release_req_param *rel_req)
{
struct hnb_ue *ue;
struct msgb *rua_msg;
struct msgb *ranap_msg;
int rc = 0;
LOGP(DLLSK, LOGL_DEBUG, "Rx IUH-CONN_RELEASE.req ctx=%u is_ps=%u data_len=%u\n",
rel_req->context_id, rel_req->domain, rel_req->data_len);
if (!hnb->registered) {
LOGP(DLLSK, LOGL_NOTICE, "Rx IUH-CONN_RELEASE.req: Ignoring, HNB not registered to HNBGW!\n");
return -EINVAL;
}
ue = hnb_find_ue_by_id(hnb, rel_req->context_id);
if (!ue) {
LOGP(DLLSK, LOGL_ERROR, "Rx IUH-CONN_RELEASE.req: conn unknown! ctx=%u is_ps=%u data_len=%u\n",
rel_req->context_id, rel_req->domain, rel_req->data_len);
return -EINVAL;
}
hnb_ue_reset_chan(ue, !!rel_req->domain);
if (!ue->conn_cs.active && !ue->conn_ps.active) {
hnb_ue_free(ue);
ue = NULL;
}
LOGP(DRUA, LOGL_DEBUG, "Tx RUA DISC ctx=%u is_ps=%u data_len=%u\n",
rel_req->context_id, rel_req->domain, rel_req->data_len);
ranap_msg = hnb_ranap_msgb_alloc();
if (rel_req->data_len)
memcpy(msgb_put(ranap_msg, rel_req->data_len), rel_req->data, rel_req->data_len);
rua_msg = rua_new_disc(rel_req->domain, rel_req->context_id, ranap_msg);
hnb_iuh_send(hnb, rua_msg);
return rc;
}
static int llsk_rx_iuh_conn_data_req(struct hnb *hnb, struct hnb_iuh_conn_data_req_param *data_req)
{
struct hnb_ue *ue;
struct msgb *rua_msg;
struct msgb *ranap_msg;
int rc = 0;
LOGP(DLLSK, LOGL_DEBUG, "Rx IUH-CONN_DATA.req ctx=%u is_ps=%u data_len=%u\n",
data_req->context_id, data_req->domain, data_req->data_len);
if (!hnb->registered) {
LOGP(DLLSK, LOGL_NOTICE, "Rx IUH-CONN_DATA.req: Ignoring, HNB not registered to HNBGW!\n");
/* TODO: NACK it to lower layers */
return -EINVAL;
}
ue = hnb_find_ue_by_id(hnb, data_req->context_id);
if (!ue) {
LOGP(DLLSK, LOGL_ERROR, "Rx IUH-CONN_DATA.req: conn unknown! ctx=%u is_ps=%u data_len=%u\n",
data_req->context_id, data_req->domain, data_req->data_len);
/* TODO: NACK it to lower layers */
return -EINVAL;
}
LOGP(DRUA, LOGL_DEBUG, "Tx RUA DT ctx=%u is_ps=%u data_len=%u\n",
data_req->context_id, data_req->domain, data_req->data_len);
ranap_msg = hnb_ranap_msgb_alloc();
if (data_req->data_len)
memcpy(msgb_put(ranap_msg, data_req->data_len), data_req->data, data_req->data_len);
rua_msg = rua_new_dt(data_req->domain, data_req->context_id, ranap_msg);
hnb_iuh_send(hnb, rua_msg);
return rc;
}
static int llsk_rx_iuh_unitdata_req(struct hnb *hnb, struct hnb_iuh_unitdata_req_param *ud_req)
{
struct msgb *rua_msg;
struct msgb *ranap_msg;
int rc = 0;
LOGP(DLLSK, LOGL_DEBUG, "Rx IUH-UNITDATA.req data_len=%u\n", ud_req->data_len);
if (!hnb->registered) {
LOGP(DLLSK, LOGL_NOTICE, "Rx IUH-UNITDATA.req: Ignoring, HNB not registered to HNBGW!\n");
return -EINVAL;
}
LOGP(DRUA, LOGL_DEBUG, "Tx RUA UDT data_len=%u\n", ud_req->data_len);
ranap_msg = hnb_ranap_msgb_alloc();
if (ud_req->data_len)
memcpy(msgb_put(ranap_msg, ud_req->data_len), ud_req->data, ud_req->data_len);
rua_msg = rua_new_udt(ranap_msg);
hnb_iuh_send(hnb, rua_msg);
return rc;
}
int llsk_rx_iuh(struct hnb *hnb, struct osmo_prim_hdr *oph)
{
size_t prim_size = llsk_iuh_prim_size(oph->primitive, oph->operation);
if (msgb_length(oph->msg) < prim_size) {
LOGP(DLLSK, LOGL_ERROR, "Rx IUH-%s.%s with length %u < %zu\n",
get_value_string(hnb_iuh_prim_type_names, oph->primitive),
get_value_string(osmo_prim_op_names, oph->operation),
msgb_length(oph->msg), prim_size);
return -EINVAL;
}
switch (oph->operation) {
case PRIM_OP_REQUEST:
switch (oph->primitive) {
case HNB_IUH_PRIM_CONN_ESTABLISH:
return llsk_rx_iuh_conn_establish_req(hnb, (struct hnb_iuh_conn_establish_req_param *)msgb_data(oph->msg));
case HNB_IUH_PRIM_CONN_RELEASE:
return llsk_rx_iuh_conn_release_req(hnb, (struct hnb_iuh_conn_release_req_param *)msgb_data(oph->msg));
case HNB_IUH_PRIM_CONN_DATA:
return llsk_rx_iuh_conn_data_req(hnb, (struct hnb_iuh_conn_data_req_param *)msgb_data(oph->msg));
case HNB_IUH_PRIM_UNITDATA:
return llsk_rx_iuh_unitdata_req(hnb, (struct hnb_iuh_unitdata_req_param *)msgb_data(oph->msg));
default:
LOGP(DLLSK, LOGL_ERROR, "Rx llsk-iuh unknown primitive %u (len=%u)\n",
oph->primitive, msgb_length(oph->msg));
return -EINVAL;
}
break;
case PRIM_OP_RESPONSE:
case PRIM_OP_INDICATION:
case PRIM_OP_CONFIRM:
default:
LOGP(DLLSK, LOGL_ERROR, "Rx llsk-iuh unexpected primitive operation %s::%s (len=%u)\n",
get_value_string(hnb_iuh_prim_type_names, oph->primitive),
get_value_string(osmo_prim_op_names, oph->operation),
msgb_length(oph->msg));
return -EINVAL;
}
}

7
src/osmo-hnodeb/main.c
View File

@ -265,6 +265,13 @@ int main(int argc, char **argv)
exit(1);
}
/* Start listening on lower layer unix domain socket: */
rc = osmo_prim_srv_link_open(g_hnb->llsk_link);
if (rc < 0) {
perror("Error opening lower layer socket");
exit(1);
}
rc = hnb_iuh_connect(g_hnb);
if (rc < 0) {
perror("Error connecting to Iuh port");

5
src/osmo-hnodeb/ranap.c
View File

@ -27,3 +27,8 @@
#include <osmocom/hnodeb/rua.h>
#include <osmocom/hnodeb/ranap.h>
struct msgb *hnb_ranap_msgb_alloc(void)
{
return msgb_alloc(1000, "ranap_tx");
}

145
src/osmo-hnodeb/rua.c
View File

@ -32,10 +32,23 @@
#include <osmocom/hnodeb/iuh.h>
#include <osmocom/hnodeb/hnodeb.h>
struct msgb *hnb_rua_msgb_alloc(void)
{
return msgb_alloc(1000, "rua_tx");
}
static void hnb_rua_dt_handle(struct hnb *hnb, ANY_t *in)
{
RUA_DirectTransferIEs_t ies;
int rc;
struct hnb_ue *ue;
struct hnb_iuh_prim *iuh_prim;
uint32_t context_id;
bool is_ps;
uint8_t *ranap_buf;
size_t ranap_buf_len;
bool *conn_est_cnf_pending;
rc = rua_decode_directtransferies(&ies, in);
if (rc < 0) {
@ -43,7 +56,44 @@ static void hnb_rua_dt_handle(struct hnb *hnb, ANY_t *in)
return;
}
context_id = asn1bitstr_to_u24(&ies.context_ID);
is_ps = (ies.cN_DomainIndicator == RUA_CN_DomainIndicator_ps_domain);
ranap_buf = ies.ranaP_Message.buf;
ranap_buf_len = ies.ranaP_Message.size;
LOGP(DRUA, LOGL_DEBUG, "Rx RUA DT context_id=%u is_ps=%u ranap_len=%zu\n",
context_id, is_ps, ranap_buf_len);
if (!(ue = hnb_find_ue_by_id(hnb, context_id))) {
LOGP(DRUA, LOGL_ERROR, "Rx RUA DT: Failed finding ue context_id=%u is_ps=%u\n",
context_id, is_ps);
goto free_ret;
}
conn_est_cnf_pending = is_ps ? &ue->conn_ps.conn_est_cnf_pending :
&ue->conn_cs.conn_est_cnf_pending;
if (*conn_est_cnf_pending) {
*conn_est_cnf_pending = false;
LOGP(DLLSK, LOGL_INFO, "Tx IUH-CONN_ESTABLISH.cnf context_id=%u is_ps=%u\n",
context_id, is_ps);
iuh_prim = hnb_iuh_makeprim_conn_establish_cnf(context_id, is_ps, 0);
if ((rc = osmo_prim_srv_send(hnb->llsk, iuh_prim->hdr.msg)) < 0) {
LOGP(DRUA, LOGL_ERROR, "Failed sending IUH-CONN_ESTABLISH.cnf context_id=%u is_ps=%u\n",
context_id, is_ps);
goto free_ret;
}
}
LOGP(DLLSK, LOGL_DEBUG, "Tx IUH-CONN_DATA.ind context_id=%u is_ps=%u ranap_len=%zu\n",
context_id, is_ps, ranap_buf_len);
iuh_prim = hnb_iuh_makeprim_conn_data_ind(context_id, is_ps, ranap_buf, ranap_buf_len);
if ((rc = osmo_prim_srv_send(hnb->llsk, iuh_prim->hdr.msg)) < 0) {
LOGP(DRUA, LOGL_ERROR, "Failed sending IUH-CONN_DATA.ind context_id=%u is_ps=%u ranap_len=%zu\n",
context_id, is_ps, ranap_buf_len);
goto free_ret;
}
free_ret:
/* FIXME: what to do with the asn1c-allocated memory */
rua_free_directtransferies(&ies);
}
@ -52,18 +102,81 @@ static void hnb_rua_cl_handle(struct hnb *hnb, ANY_t *in)
{
RUA_ConnectionlessTransferIEs_t ies;
int rc;
struct hnb_iuh_prim *iuh_prim;
uint8_t *ranap_buf;
size_t ranap_buf_len;
rc = rua_decode_connectionlesstransferies(&ies, in);
if (rc < 0) {
LOGP(DRUA, LOGL_INFO, "failed to decode RUA CL IEs\n");
return;
}
ranap_buf = ies.ranaP_Message.buf;
ranap_buf_len = ies.ranaP_Message.size;
LOGP(DRUA, LOGL_DEBUG, "Rx RUA UDT ranap_len=%zu\n", ranap_buf_len);
LOGP(DLLSK, LOGL_DEBUG, "Tx IUH-UNITDATA.ind ranap_len=%zu\n", ranap_buf_len);
iuh_prim = hnb_iuh_makeprim_unitdata_ind(ranap_buf, ranap_buf_len);
if ((rc = osmo_prim_srv_send(hnb->llsk, iuh_prim->hdr.msg)) < 0) {
LOGP(DRUA, LOGL_ERROR, "Failed sending IUH-CONN_DATA.ind ranap_len=%zu\n",
ranap_buf_len);
goto free_ret;
}
free_ret:
/* FIXME: what to do with the asn1c-allocated memory */
rua_free_connectionlesstransferies(&ies);
}
static int hnb_rua_rx_initiating(struct hnb *hnb, RUA_InitiatingMessage_t *init)
{
switch (init->procedureCode) {
case RUA_ProcedureCode_id_ConnectionlessTransfer:
LOGP(DRUA, LOGL_INFO, "RUA rx Initiating ConnectionlessTransfer\n");
hnb_rua_cl_handle(hnb, &init->value);
break;
case RUA_ProcedureCode_id_DirectTransfer:
LOGP(DRUA, LOGL_INFO, "RUA rx Initiating DirectTransfer\n");
hnb_rua_dt_handle(hnb, &init->value);
default:
LOGP(DRUA, LOGL_INFO, "RUA rx unknown Initiating message\n");
break;
}
return 0;
}
static int hnb_rua_rx_successful(struct hnb *hnb, RUA_SuccessfulOutcome_t *success)
{
switch (success->procedureCode) {
case RUA_ProcedureCode_id_ConnectionlessTransfer:
LOGP(DRUA, LOGL_INFO, "RUA rx SuccessfulOutcome ConnectionlessTransfer\n");
hnb_rua_cl_handle(hnb, &success->value);
break;
case RUA_ProcedureCode_id_Connect:
LOGP(DRUA, LOGL_INFO, "RUA rx SuccessfulOutcome Connect\n");
break;
case RUA_ProcedureCode_id_DirectTransfer:
LOGP(DRUA, LOGL_INFO, "RUA rx SuccessfulOutcome DirectTransfer\n");
hnb_rua_dt_handle(hnb, &success->value);
break;
case RUA_ProcedureCode_id_Disconnect:
LOGP(DRUA, LOGL_INFO, "RUA rx SuccessfulOutcome Disconnect\n");
break;
case RUA_ProcedureCode_id_ErrorIndication:
LOGP(DRUA, LOGL_INFO, "RUA rx SuccessfulOutcome ErrorIndication\n");
break;
case RUA_ProcedureCode_id_privateMessage:
LOGP(DRUA, LOGL_INFO, "RUA rx SuccessfulOutcome privateMessage\n");
break;
default:
LOGP(DRUA, LOGL_INFO, "RUA rx unknown SuccessfulOutcome message\n");
break;
}
return 0;
}
int hnb_rua_rx(struct hnb *hnb, struct msgb *msg)
{
RUA_RUA_PDU_t _pdu, *pdu = &_pdu;
@ -79,11 +192,9 @@ int hnb_rua_rx(struct hnb *hnb, struct msgb *msg)
switch (pdu->present) {
case RUA_RUA_PDU_PR_successfulOutcome:
LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_successfulOutcome\n");
break;
return hnb_rua_rx_successful(hnb, &pdu->choice.successfulOutcome);
case RUA_RUA_PDU_PR_initiatingMessage:
LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_initiatingMessage\n");
break;
return hnb_rua_rx_initiating(hnb, &pdu->choice.initiatingMessage);
case RUA_RUA_PDU_PR_NOTHING:
LOGP(DRUA, LOGL_INFO, "RUA_RUA_PDU_PR_NOTHING\n");
break;
@ -95,31 +206,5 @@ int hnb_rua_rx(struct hnb *hnb, struct msgb *msg)
break;
}
switch (pdu->choice.successfulOutcome.procedureCode) {
case RUA_ProcedureCode_id_ConnectionlessTransfer:
LOGP(DRUA, LOGL_INFO, "RUA rx Connectionless Transfer\n");
hnb_rua_cl_handle(hnb, &pdu->choice.successfulOutcome.value);
break;
case RUA_ProcedureCode_id_Connect:
LOGP(DRUA, LOGL_INFO, "RUA rx Connect\n");
break;
case RUA_ProcedureCode_id_DirectTransfer:
LOGP(DRUA, LOGL_INFO, "RUA rx DirectTransfer\n");
hnb_rua_dt_handle(hnb, &pdu->choice.successfulOutcome.value);
break;
case RUA_ProcedureCode_id_Disconnect:
LOGP(DRUA, LOGL_INFO, "RUA rx Disconnect\n");
break;
case RUA_ProcedureCode_id_ErrorIndication:
LOGP(DRUA, LOGL_INFO, "RUA rx ErrorIndication\n");
break;
case RUA_ProcedureCode_id_privateMessage:
LOGP(DRUA, LOGL_INFO, "RUA rx privateMessage\n");
break;
default:
LOGP(DRUA, LOGL_INFO, "RUA rx unknown message\n");
break;
}
return 0;
}

40
src/osmo-hnodeb/vty.c
View File

@ -47,6 +47,10 @@ int hnb_vty_go_parent(struct vty *vty)
vty->node = HNODEB_NODE;
vty->index = g_hnb;
break;
case LLSK_NODE:
vty->node = HNODEB_NODE;
vty->index = g_hnb;
break;
case HNODEB_NODE:
vty->node = CONFIG_NODE;
vty->index = g_hnb;
@ -247,6 +251,36 @@ DEFUN(cfg_hnodeb_iuh_remote_port, cfg_hnodeb_iuh_remote_port_cmd,
return CMD_SUCCESS;
}
static struct cmd_node llsk_node = {
LLSK_NODE,
"%s(config-ll-socket)# ",
1,
};
#define LLSK_STR "Configure the Lower Layer Unix Domain Socket\n"
DEFUN(cfg_hnodeb_llsk,
cfg_hnodeb_llsk_cmd,
"ll-socket", LLSK_STR)
{
OSMO_ASSERT(g_hnb);
vty->index = g_hnb;
vty->node = LLSK_NODE;
return CMD_SUCCESS;
}
DEFUN(cfg_hnodeb_llsk_path, cfg_hnodeb_llsk_path_cmd,
"path PATH",
"Configure the Lower Layer Unix Domain Socket path\n"
"UNIX socket path\n")
{
osmo_prim_srv_link_set_addr(g_hnb->llsk_link, argv[0]);
/* FIXME: re-open the interface? */
return CMD_SUCCESS;
}
static int config_write_hnodeb(struct vty *vty)
{
@ -266,10 +300,11 @@ static int config_write_hnodeb(struct vty *vty)
vty_out(vty, " local-port %u%s", g_hnb->iuh.local_port, VTY_NEWLINE);
vty_out(vty, " remote-ip %s%s", g_hnb->iuh.remote_addr, VTY_NEWLINE);
vty_out(vty, " remote-port %u%s", g_hnb->iuh.remote_port, VTY_NEWLINE);
vty_out(vty, " ll-socket%s", VTY_NEWLINE);
vty_out(vty, " path %s%s", osmo_prim_srv_link_get_addr(g_hnb->llsk_link), VTY_NEWLINE);
return CMD_SUCCESS;
}
#define RANAP_STR "RANAP related commands\n"
#define CSPS_STR "Circuit Switched\n" "Packet Switched\n"
@ -321,6 +356,9 @@ void hnb_vty_init(void)
install_element(IUH_NODE, &cfg_hnodeb_iuh_local_port_cmd);
install_element(IUH_NODE, &cfg_hnodeb_iuh_remote_ip_cmd);
install_element(IUH_NODE, &cfg_hnodeb_iuh_remote_port_cmd);
install_element(HNODEB_NODE, &cfg_hnodeb_llsk_cmd);
install_node(&llsk_node, NULL);
install_element(LLSK_NODE, &cfg_hnodeb_llsk_path_cmd);
install_element_ve(&asn_dbg_cmd);
install_element_ve(&ranap_reset_cmd);