bsc_vty: add features to disable specific lchans via vty
In some test and debug situations it is useful to have the ability to
lock certain lchans in a way that the BSC can not allocate them. One
application might be to simulate an exhaustion of all TCH/H channels in
order to force the BSC to take one of the available TCH/F.
Lets add a command to the vty which alloes us sen lchans from
LCHAN_ST_UNUSED
to LCHAN_ST_BORKEN and vice versa.
Change-Id: I397e68e26d6a1727890353fa34f4897b54795866
Related: OS#3503
diff --git a/src/osmo-bsc/bsc_vty.c b/src/osmo-bsc/bsc_vty.c
index 3830475..357ee9e 100644
--- a/src/osmo-bsc/bsc_vty.c
+++ b/src/osmo-bsc/bsc_vty.c
@@ -4788,6 +4788,51 @@
return CMD_SUCCESS;
}
+/* Debug command to send lchans from state LCHAN_ST_UNUSED to state
+ * LCHAN_ST_BORKEN and vice versa. */
+DEFUN_HIDDEN(lchan_set_borken, lchan_set_borken_cmd,
+ "bts <0-255> trx <0-255> timeslot <0-7> sub-slot <0-7> (borken|unused)",
+ BTS_NR_TRX_TS_SS_STR2
+ "send lchan to state LCHAN_ST_BORKEN (for debugging)\n"
+ "send lchan to state LCHAN_ST_UNUSED (for debugging)\n")
+{
+ struct gsm_bts_trx_ts *ts;
+ struct gsm_lchan *lchan;
+ int ss_nr = atoi(argv[3]);
+ ts = vty_get_ts(vty, argv[0], argv[1], argv[2]);
+ if (!ts)
+ return CMD_WARNING;
+ lchan = &ts->lchan[ss_nr];
+ if (!lchan->fi)
+ return CMD_WARNING;
+
+ if (!strcmp(argv[4], "borken")) {
+ if (lchan->fi->state == LCHAN_ST_UNUSED)
+ osmo_fsm_inst_state_chg(lchan->fi, LCHAN_ST_BORKEN, 0, 0);
+ else {
+ vty_out(vty,
+ "%% lchan is in state %s, only lchans that are in state %s may be moved to state %s manually%s",
+ osmo_fsm_state_name(lchan->fi->fsm, lchan->fi->state),
+ osmo_fsm_state_name(lchan->fi->fsm, LCHAN_ST_UNUSED),
+ osmo_fsm_state_name(lchan->fi->fsm, LCHAN_ST_BORKEN), VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ } else {
+ if (lchan->fi->state == LCHAN_ST_BORKEN)
+ osmo_fsm_inst_state_chg(lchan->fi, LCHAN_ST_UNUSED, 0, 0);
+ else {
+ vty_out(vty,
+ "%% lchan is in state %s, only lchans that are in state %s may be moved to state %s manually%s",
+ osmo_fsm_state_name(lchan->fi->fsm, lchan->fi->state),
+ osmo_fsm_state_name(lchan->fi->fsm, LCHAN_ST_BORKEN),
+ osmo_fsm_state_name(lchan->fi->fsm, LCHAN_ST_UNUSED), VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ }
+
+ return CMD_SUCCESS;
+}
+
DEFUN(lchan_mdcx, lchan_mdcx_cmd,
"bts <0-255> trx <0-255> timeslot <0-7> sub-slot <0-7> mdcx A.B.C.D <0-65535>",
BTS_NR_TRX_TS_SS_STR2
@@ -5264,6 +5309,8 @@
install_element(ENABLE_NODE, &pdch_act_cmd);
install_element(ENABLE_NODE, &lchan_act_cmd);
install_element(ENABLE_NODE, &lchan_mdcx_cmd);
+ install_element(ENABLE_NODE, &lchan_set_borken_cmd);
+
install_element(ENABLE_NODE, &handover_subscr_conn_cmd);
install_element(ENABLE_NODE, &assignment_subscr_conn_cmd);
install_element(ENABLE_NODE, &smscb_cmd_cmd);
diff --git a/src/osmo-bsc/lchan_fsm.c b/src/osmo-bsc/lchan_fsm.c
index 70f7622..8b4cf6d 100644
--- a/src/osmo-bsc/lchan_fsm.c
+++ b/src/osmo-bsc/lchan_fsm.c
@@ -1115,6 +1115,7 @@
.out_state_mask = 0
| S(LCHAN_ST_WAIT_TS_READY)
| S(LCHAN_ST_CBCH)
+ | S(LCHAN_ST_BORKEN)
,
},
[LCHAN_ST_CBCH] = {