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-rw-r--r--tests/e1inp_hsl_bsc_test.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/tests/e1inp_hsl_bsc_test.c b/tests/e1inp_hsl_bsc_test.c
new file mode 100644
index 0000000..96749e3
--- /dev/null
+++ b/tests/e1inp_hsl_bsc_test.c
@@ -0,0 +1,232 @@
+#include <stdio.h>
+#include <talloc.h>
+#include <osmocom/abis/abis.h>
+#include <osmocom/abis/e1_input.h>
+#include <osmocom/core/application.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/gsm/protocol/gsm_12_21.h>
+
+static void *tall_test;
+static struct e1inp_sign_link *oml_sign_link, *rsl_sign_link;
+
+#define DBSCTEST 0
+
+struct log_info_cat bsc_test_cat[] = {
+ [DBSCTEST] = {
+ .name = "DBSCTEST",
+ .description = "BSC-mode test",
+ .color = "\033[1;35m",
+ .enabled = 1, .loglevel = LOGL_NOTICE,
+ },
+};
+
+static struct e1inp_sign_link *
+sign_link_up(void *dev, struct e1inp_line *line, enum e1inp_sign_type type)
+{
+ struct e1inp_sign_link *sign_link = NULL;
+
+ LOGP(DBSCTEST, LOGL_NOTICE, "Signal link up request received.\n");
+ e1inp_ts_config_sign(&line->ts[E1INP_SIGN_OML - 1], line);
+ sign_link = oml_sign_link =
+ e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML - 1],
+ E1INP_SIGN_OML, NULL, 255, 0);
+ if (!oml_sign_link) {
+ LOGP(DBSCTEST, LOGL_ERROR, "OML link not yet set, giving up\n");
+ return NULL;
+ }
+ e1inp_ts_config_sign(&line->ts[E1INP_SIGN_RSL - 1], line);
+ sign_link = rsl_sign_link =
+ e1inp_sign_link_create(&line->ts[E1INP_SIGN_RSL - 1],
+ E1INP_SIGN_RSL, NULL, 0, 0);
+ if (sign_link)
+ LOGP(DBSCTEST, LOGL_NOTICE, "signal link has been set up.\n");
+
+ return sign_link;
+}
+
+static void sign_link_down(struct e1inp_line *line)
+{
+ LOGP(DBSCTEST, LOGL_NOTICE, "signal link has been closed\n");
+ if (oml_sign_link)
+ e1inp_sign_link_destroy(oml_sign_link);
+ if (rsl_sign_link)
+ e1inp_sign_link_destroy(rsl_sign_link);
+}
+
+static void fill_om_hdr(struct abis_om_hdr *oh, uint8_t len)
+{
+ oh->mdisc = ABIS_OM_MDISC_FOM;
+ oh->placement = ABIS_OM_PLACEMENT_ONLY;
+ oh->sequence = 0;
+ oh->length = len;
+}
+
+static void fill_om_fom_hdr(struct abis_om_hdr *oh, uint8_t len,
+ uint8_t msg_type, uint8_t obj_class,
+ uint8_t bts_nr, uint8_t trx_nr, uint8_t ts_nr)
+{
+ struct abis_om_fom_hdr *foh =
+ (struct abis_om_fom_hdr *) oh->data;
+
+ fill_om_hdr(oh, len+sizeof(*foh));
+ foh->msg_type = msg_type;
+ foh->obj_class = obj_class;
+ foh->obj_inst.bts_nr = bts_nr;
+ foh->obj_inst.trx_nr = trx_nr;
+ foh->obj_inst.ts_nr = ts_nr;
+}
+
+#define OM_ALLOC_SIZE 1024
+#define OM_HEADROOM_SIZE 128
+
+static struct msgb *nm_msgb_alloc(void)
+{
+ return msgb_alloc_headroom(OM_ALLOC_SIZE, OM_HEADROOM_SIZE, "OML");
+}
+
+
+static int abis_nm_sw_act_req_ack(struct e1inp_sign_link *sign_link,
+ uint8_t obj_class,
+ uint8_t i1, uint8_t i2, uint8_t i3,
+ uint8_t *attr, int att_len)
+{
+ struct abis_om_hdr *oh;
+ struct msgb *msg = nm_msgb_alloc();
+ uint8_t msgtype = NM_MT_SW_ACT_REQ_ACK;
+
+ oh = (struct abis_om_hdr *) msgb_put(msg, ABIS_OM_FOM_HDR_SIZE);
+ fill_om_fom_hdr(oh, att_len, msgtype, obj_class, i1, i2, i3);
+
+ if (attr) {
+ uint8_t *ptr = msgb_put(msg, att_len);
+ memcpy(ptr, attr, att_len);
+ }
+ msg->dst = sign_link;
+ return abis_sendmsg(msg);
+}
+
+static int abis_nm_rx_sw_act_req(struct msgb *msg)
+{
+ struct abis_om_hdr *oh = msgb_l2(msg);
+ struct abis_om_fom_hdr *foh = msgb_l3(msg);
+ int ret;
+
+ ret = abis_nm_sw_act_req_ack(msg->dst,
+ foh->obj_class,
+ foh->obj_inst.bts_nr,
+ foh->obj_inst.trx_nr,
+ foh->obj_inst.ts_nr,
+ foh->data, oh->length-sizeof(*foh));
+
+ return ret;
+}
+
+static int abis_nm_rcvmsg_fom(struct msgb *msg)
+{
+ struct abis_om_fom_hdr *foh = msgb_l3(msg);
+ uint8_t mt = foh->msg_type;
+ int ret = 0;
+
+ switch (mt) {
+ case NM_MT_SW_ACT_REQ: /* Software activate request from BTS. */
+ ret = abis_nm_rx_sw_act_req(msg);
+ break;
+ default:
+ break;
+ }
+ return ret;
+}
+
+static int abis_nm_rcvmsg(struct msgb *msg)
+{
+ int ret = 0;
+ struct abis_om_hdr *oh = msgb_l2(msg);
+
+ msg->l3h = (unsigned char *)oh + sizeof(*oh);
+ switch (oh->mdisc) {
+ case ABIS_OM_MDISC_FOM:
+ ret = abis_nm_rcvmsg_fom(msg);
+ break;
+ default:
+ LOGP(DBSCTEST, LOGL_ERROR, "unknown OML message\n");
+ break;
+ }
+ return ret;
+}
+
+static int sign_link(struct msgb *msg)
+{
+ int ret = 0;
+ struct e1inp_sign_link *link = msg->dst;
+
+ switch(link->type) {
+ case E1INP_SIGN_RSL:
+ LOGP(DBSCTEST, LOGL_NOTICE, "RSL message received.\n");
+ break;
+ case E1INP_SIGN_OML:
+ LOGP(DBSCTEST, LOGL_NOTICE, "OML message received.\n");
+ ret = abis_nm_rcvmsg(msg);
+ break;
+ default:
+ LOGP(DBSCTEST, LOGL_ERROR, "Unknown signallin message.\n");
+ break;
+ }
+ return ret;
+}
+
+const struct log_info bsc_test_log_info = {
+ .filter_fn = NULL,
+ .cat = bsc_test_cat,
+ .num_cat = ARRAY_SIZE(bsc_test_cat),
+};
+
+int main(void)
+{
+ struct e1inp_line *line;
+
+ tall_test = talloc_named_const(NULL, 1, "e1inp_test");
+ libosmo_abis_init(tall_test);
+
+ osmo_init_logging(&bsc_test_log_info);
+
+ struct e1inp_line_ops ops = {
+ .addr = "0.0.0.0",
+ .role = E1INP_LINE_R_BSC,
+ .sign_link_up = sign_link_up,
+ .sign_link_down = sign_link_down,
+ .sign_link = sign_link,
+ };
+
+#define LINENR 0
+
+ line = e1inp_line_create(LINENR, "hsl");
+ if (line == NULL) {
+ LOGP(DBSCTEST, LOGL_ERROR, "problem creating E1 line\n");
+ exit(EXIT_FAILURE);
+ }
+
+ e1inp_line_bind_ops(line, &ops);
+
+ /*
+ * Depending if this is a real or virtual E1 lines:
+ * - real (ISDN): create signal link for OML and RSL before line up.
+ * - vitual (INET): we create it in signal_link_up(...) callback.
+ *
+ * The signal link is created via e1inp_sign_link_create(...)
+ *
+ * See e1_reconfig_trx and e1_reconfig_bts in libbsc/e1_config.c,
+ * it explains how this is done with ISDN.
+ */
+
+ if (e1inp_line_update(line) < 0) {
+ LOGP(DBSCTEST, LOGL_ERROR, "problem creating E1 line\n");
+ exit(EXIT_FAILURE);
+ }
+
+ LOGP(DBSCTEST, LOGL_NOTICE, "entering main loop\n");
+
+ while (1) {
+ osmo_select_main(0);
+ }
+ return 0;
+}