Add initial remsim-client skeleton
Doesn't rally do much but to connect to bankd and send a
ConnectClientReq to it.
Change-Id: Ia67011ca690d90b7b670eb85dd0bc507d6c96d49
diff --git a/src/Makefile.am b/src/Makefile.am
index 06e4311..5d97b6d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -13,7 +13,7 @@
noinst_HEADERS = bankd.h internal.h rspro_util.h
-bin_PROGRAMS = pcsc_test remsim-bankd
+bin_PROGRAMS = pcsc_test remsim-bankd remsim-client
pcsc_test_SOURCES = driver_core.c driver_pcsc.c main.c
pcsc_test_LDADD = $(OSMOCORE_LIBS) \
@@ -22,3 +22,7 @@
remsim_bankd_SOURCES = bankd_slotmap.c bankd_main.c
remsim_bankd_LDADD = $(OSMOCORE_LIBS) \
$(ASN1C_LIBS) $(PCSC_LIBS) libosmo-rspro.la
+
+remsim_client_SOURCES = remsim_client.c
+remsim_client_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) \
+ $(ASN1C_LIBS) libosmo-rspro.la
diff --git a/src/remsim_client.c b/src/remsim_client.c
new file mode 100644
index 0000000..7701dd4
--- /dev/null
+++ b/src/remsim_client.c
@@ -0,0 +1,148 @@
+
+#include <errno.h>
+#include <string.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"
+
+struct bankd_client {
+ /* connection to the remsim-server (control) */
+ struct ipa_client_conn *srv_conn;
+
+ /* our own component ID */
+ struct app_comp_id own_comp_id;
+
+ /* connection to the remsim-bankd */
+ char *bankd_host;
+ uint16_t bankd_port;
+ struct ipa_client_conn *bankd_conn;
+};
+
+
+static void bankd_send(struct bankd_client *bc, struct msgb *msg_tx)
+{
+ ipa_prepend_header_ext(msg_tx, IPAC_PROTO_EXT_RSPRO);
+ ipa_msg_push_header(msg_tx, IPAC_PROTO_OSMO);
+ ipa_client_conn_send(bc->bankd_conn, msg_tx);
+ /* msg_tx is now queued and will be freed. */
+}
+
+static void bankd_send_rspro(struct bankd_client *bc, RsproPDU_t *rspro)
+{
+ struct msgb *msg = rspro_enc_msg(rspro);
+ OSMO_ASSERT(msg);
+ bankd_send(bc, msg);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+static void bankd_updown_cb(struct ipa_client_conn *conn, int up)
+{
+ struct bankd_client *bc = conn->data;
+
+ printf("RSPRO link to %s:%d %s\n", conn->addr, conn->port, up ? "UP" : "DOWN");
+ if (!up)
+ exit(3);
+ else {
+ const ClientSlot_t clslot = { .clientId = 23, .slotNr = 1 };
+ RsproPDU_t *pdu = rspro_gen_ConnectClientReq(&bc->own_comp_id, &clslot);
+ bankd_send_rspro(bc, pdu);
+ }
+}
+
+static 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;
+
+ if (msgb_length(msg) < sizeof(*hh))
+ goto invalid;
+ msg->l2h = &hh->data[0];
+ if (hh->proto != IPAC_PROTO_OSMO)
+ goto invalid;
+ if (!he || msgb_l2len(msg) < sizeof(*he))
+ goto invalid;
+ msg->l2h = &he->data[0];
+
+ if (he->proto != IPAC_PROTO_EXT_RSPRO)
+ goto invalid;
+
+ /* FIXME: do something */
+ printf("Received RSPRO %s\n", msgb_hexdump(msg));
+
+ msgb_free(msg);
+ return 0;
+
+invalid:
+ msgb_free(msg);
+ return -1;
+}
+
+static const struct log_info_cat default_categories[] = {
+};
+
+static const struct log_info log_info = {
+ .cat = default_categories,
+ .num_cat = ARRAY_SIZE(default_categories),
+};
+
+static struct bankd_client g_client;
+static void *g_tall_ctx;
+void __thread *talloc_asn1_ctx;
+extern int asn_debug;
+
+int main(int argc, char **argv)
+{
+ int rc;
+
+ g_tall_ctx = talloc_named_const(NULL, 0, "global");
+
+ g_client.bankd_host = "localhost";
+ g_client.bankd_port = 9999;
+ g_client.own_comp_id.type = ComponentType_remsimClient;
+ OSMO_STRLCPY_ARRAY(g_client.own_comp_id.name, "fixme-name");
+ OSMO_STRLCPY_ARRAY(g_client.own_comp_id.software, "remsim-client");
+ OSMO_STRLCPY_ARRAY(g_client.own_comp_id.sw_version, PACKAGE_VERSION);
+
+ //asn_debug = 1;
+ osmo_init_logging2(g_tall_ctx, &log_info);
+
+ g_client.bankd_conn = ipa_client_conn_create(g_tall_ctx, NULL, 0,
+ g_client.bankd_host, g_client.bankd_port,
+ bankd_updown_cb, bankd_read_cb,
+ NULL, &g_client);
+ if (!g_client.bankd_conn) {
+ fprintf(stderr, "Unable to connect: %s\n", strerror(errno));
+ exit(1);
+ }
+ rc = ipa_client_conn_open(g_client.bankd_conn);
+ if (rc < 0) {
+ fprintf(stderr, "Unable to connect RSPRO to %s:%d - %s\n",
+ g_client.bankd_conn->addr, g_client.bankd_conn->port, strerror(errno));
+ return 0;
+ }
+
+ while (1) {
+ osmo_select_main(0);
+ }
+}