| /* (C) 2018-2019 by Harald Welte <laforge@gnumonks.org> |
| * |
| * All Rights Reserved |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| |
| #define _GNU_SOURCE |
| #include <getopt.h> |
| |
| #include <talloc.h> |
| |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/fsm.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/logging.h> |
| #include <osmocom/core/application.h> |
| |
| #include <osmocom/abis/ipa.h> |
| #include <osmocom/gsm/protocol/ipaccess.h> |
| |
| #include "rspro_util.h" |
| #include "client.h" |
| #include "debug.h" |
| |
| static int bankd_handle_msg(struct bankd_client *bc, struct msgb *msg) |
| { |
| RsproPDU_t *pdu = rspro_dec_msg(msg); |
| if (!pdu) { |
| LOGPFSML(bc->bankd_fi, LOGL_ERROR, "Error decoding PDU\n"); |
| return -1; |
| } |
| |
| LOGPFSM(bc->bankd_fi, "Rx RSPRO %s\n", rspro_msgt_name(pdu)); |
| |
| switch (pdu->msg.present) { |
| case RsproPDUchoice_PR_connectClientRes: |
| /* Store 'identity' of bankd to in peer_comp_id */ |
| rspro_comp_id_retrieve(&bc->peer_comp_id, &pdu->msg.choice.connectClientRes.identity); |
| osmo_fsm_inst_dispatch(bc->bankd_fi, BDC_E_CLIENT_CONN_RES, pdu); |
| break; |
| default: |
| LOGPFSML(bc->bankd_fi, LOGL_ERROR, "Unknown/Unsuppoerted RSPRO PDU %s: %s\n", |
| rspro_msgt_name(pdu), msgb_hexdump(msg)); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int bankd_read_cb(struct ipa_client_conn *conn, struct msgb *msg) |
| { |
| struct ipaccess_head *hh = (struct ipaccess_head *) msg->data; |
| struct ipaccess_head_ext *he = (struct ipaccess_head_ext *) msgb_l2(msg); |
| struct bankd_client *bc = conn->data; |
| int rc; |
| |
| if (msgb_length(msg) < sizeof(*hh)) |
| goto invalid; |
| msg->l2h = &hh->data[0]; |
| switch (hh->proto) { |
| case IPAC_PROTO_IPACCESS: |
| rc = ipaccess_bts_handle_ccm(conn, &bc->srv_conn.ipa_dev, msg); |
| if (rc < 0) |
| break; |
| switch (hh->data[0]) { |
| case IPAC_MSGT_PONG: |
| ipa_keepalive_fsm_pong_received(bc->srv_conn.keepalive_fi); |
| rc = 0; |
| break; |
| default: |
| break; |
| } |
| break; |
| case IPAC_PROTO_OSMO: |
| if (!he || msgb_l2len(msg) < sizeof(*he)) |
| goto invalid; |
| msg->l2h = &he->data[0]; |
| switch (he->proto) { |
| case IPAC_PROTO_EXT_RSPRO: |
| LOGPFSML(bc->bankd_fi, LOGL_DEBUG, "Received RSPRO %s\n", msgb_hexdump(msg)); |
| rc = bankd_handle_msg(bc, msg); |
| break; |
| default: |
| goto invalid; |
| } |
| break; |
| default: |
| goto invalid; |
| } |
| |
| return rc; |
| |
| invalid: |
| msgb_free(msg); |
| return -1; |
| } |
| |
| static struct bankd_client *g_client; |
| static void *g_tall_ctx; |
| void __thread *talloc_asn1_ctx; |
| int asn_debug; |
| |
| /* handle incoming messages from server */ |
| static int srvc_handle_rx(struct rspro_server_conn *srvc, const RsproPDU_t *pdu) |
| { |
| RsproPDU_t *resp; |
| |
| switch (pdu->msg.present) { |
| case RsproPDUchoice_PR_connectClientRes: |
| /* Store 'identity' of server in srvc->peer_comp_id */ |
| rspro_comp_id_retrieve(&srvc->peer_comp_id, &pdu->msg.choice.connectClientRes.identity); |
| osmo_fsm_inst_dispatch(srvc->fi, SRVC_E_CLIENT_CONN_RES, (void *) pdu); |
| break; |
| case RsproPDUchoice_PR_configClientIdReq: |
| /* store/set the clientID as instructed by the server */ |
| if (!g_client->srv_conn.clslot) |
| g_client->srv_conn.clslot = talloc_zero(g_client, ClientSlot_t); |
| *g_client->srv_conn.clslot = pdu->msg.choice.configClientIdReq.clientSlot; |
| /* send response to server */ |
| resp = rspro_gen_ConfigClientIdRes(ResultCode_ok); |
| server_conn_send_rspro(srvc, resp); |
| break; |
| case RsproPDUchoice_PR_configClientBankReq: |
| /* store/set the bankd ip/port as instructed by the server */ |
| osmo_talloc_replace_string(g_client, &g_client->bankd_host, |
| rspro_IpAddr2str(&pdu->msg.choice.configClientBankReq.bankd.ip)); |
| g_client->bankd_port = pdu->msg.choice.configClientBankReq.bankd.port; |
| rspro2bank_slot(&g_client->bankd_slot, &pdu->msg.choice.configClientBankReq.bankSlot); |
| /* instruct bankd FSM to connect */ |
| osmo_fsm_inst_dispatch(g_client->bankd_fi, BDC_E_ESTABLISH, NULL); |
| /* send response to server */ |
| resp = rspro_gen_ConfigClientBankRes(ResultCode_ok); |
| server_conn_send_rspro(srvc, resp); |
| break; |
| default: |
| LOGPFSML(srvc->fi, LOGL_ERROR, "Unknown/Unsupported RSPRO PDU type: %s\n", |
| rspro_msgt_name(pdu)); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static void handle_sig_usr1(int signal) |
| { |
| OSMO_ASSERT(signal == SIGUSR1); |
| talloc_report(g_tall_ctx, stderr); |
| } |
| |
| static void printf_help() |
| { |
| printf( |
| " -h --help Print this help message\n" |
| " -i --server-ip A.B.C.D remsim-server IP address\n" |
| " -p --server-port 13245 remsim-server TCP port\n" |
| " -i --client-id <0-65535> RSPRO ClientId of this client\n" |
| " -n --client-slot <0-65535> RSPRO SlotNr of this client\n" |
| ); |
| } |
| |
| static void handle_options(int argc, char **argv) |
| { |
| while (1) { |
| int option_index = 0, c; |
| static const struct option long_options[] = { |
| { "help", 0, 0, 'h' }, |
| { "server-ip", 1, 0, 'i' }, |
| { "server-port", 1, 0, 'p' }, |
| { "client-id", 1, 0, 'c' }, |
| { "client-slot", 1, 0, 'n' }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| c = getopt_long(argc, argv, "hi:p:c:n:", |
| long_options, &option_index); |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case 'h': |
| printf_help(); |
| exit(0); |
| break; |
| case 'i': |
| g_client->srv_conn.server_host = optarg; |
| break; |
| case 'p': |
| g_client->srv_conn.server_port = atoi(optarg); |
| break; |
| case 'c': |
| if (!g_client->srv_conn.clslot) |
| g_client->srv_conn.clslot = talloc_zero(g_client, ClientSlot_t); |
| g_client->srv_conn.clslot->clientId = atoi(optarg); |
| break; |
| case 's': |
| if (!g_client->srv_conn.clslot) |
| g_client->srv_conn.clslot = talloc_zero(g_client, ClientSlot_t); |
| g_client->srv_conn.clslot->slotNr = atoi(optarg); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| int main(int argc, char **argv) |
| { |
| struct rspro_server_conn *srvc; |
| int rc; |
| |
| g_tall_ctx = talloc_named_const(NULL, 0, "global"); |
| |
| osmo_init_logging2(g_tall_ctx, &log_info); |
| |
| g_client = talloc_zero(g_tall_ctx, struct bankd_client); |
| |
| srvc = &g_client->srv_conn; |
| srvc->server_host = "localhost"; |
| srvc->server_port = 9998; |
| srvc->handle_rx = srvc_handle_rx; |
| srvc->own_comp_id.type = ComponentType_remsimClient; |
| OSMO_STRLCPY_ARRAY(srvc->own_comp_id.name, "fixme-name"); |
| OSMO_STRLCPY_ARRAY(srvc->own_comp_id.software, "remsim-client"); |
| OSMO_STRLCPY_ARRAY(srvc->own_comp_id.sw_version, PACKAGE_VERSION); |
| |
| handle_options(argc, argv); |
| |
| signal(SIGUSR1, handle_sig_usr1); |
| |
| rc = server_conn_fsm_alloc(g_client, srvc); |
| if (rc < 0) { |
| fprintf(stderr, "Unable to create Server conn FSM: %s\n", strerror(errno)); |
| exit(1); |
| } |
| |
| asn_debug = 0; |
| |
| if (bankd_conn_fsm_alloc(g_client) < 0) { |
| fprintf(stderr, "Unable to connect: %s\n", strerror(errno)); |
| exit(1); |
| } |
| |
| while (1) { |
| osmo_select_main(0); |
| } |
| } |