Implement the HSL SR1.0.1 protocol
It seems HSL has fixed most of their obvious issues in the SR1.0.1
release. However, this creates quite an incompatibility of the
protocol, and we have to adapt accordingly
diff --git a/openbsc/src/libabis/input/hsl.c b/openbsc/src/libabis/input/hsl.c
index 12e974b..360be32 100644
--- a/openbsc/src/libabis/input/hsl.c
+++ b/openbsc/src/libabis/input/hsl.c
@@ -228,7 +228,7 @@
}
/* HSL proprietary RSL extension */
- if (hh->proto == 0 && msg->l2h[0] == 0x80) {
+ if (hh->proto == 0 && (msg->l2h[0] == 0x81 || msg->l2h[0] == 0x80)) {
ret = process_hsl_rsl(msg, line);
if (ret < 0) {
/* FIXME: close connection */
@@ -238,11 +238,11 @@
return 0;
/* else: continue... */
}
-
+#ifdef HSL_SR_1_0
/* HSL for whatever reason chose to use 0x81 instead of 0x80 for FOM */
if (hh->proto == 255 && msg->l2h[0] == (ABIS_OM_MDISC_FOM | 0x01))
msg->l2h[0] = ABIS_OM_MDISC_FOM;
-
+#endif
link = e1inp_lookup_sign_link(e1i_ts, hh->proto, 0);
if (!link) {
LOGP(DINP, LOGL_ERROR, "no matching signalling link for "
@@ -312,9 +312,11 @@
switch (sign_link->type) {
case E1INP_SIGN_OML:
proto = IPAC_PROTO_OML;
+#ifdef HSL_SR_1_0
/* HSL uses 0x81 for FOM for some reason */
if (msg->data[0] == ABIS_OM_MDISC_FOM)
msg->data[0] = ABIS_OM_MDISC_FOM | 0x01;
+#endif
break;
case E1INP_SIGN_RSL:
proto = IPAC_PROTO_RSL;