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authorNeels Hofmeyr <nhofmeyr@sysmocom.de>2021-10-02 12:03:19 +0200
committerneels <nhofmeyr@sysmocom.de>2021-10-04 11:04:21 +0000
commit62c4097dcf3e6fdf57f47fcc8f45076572a25d9f (patch)
tree13088832fb4e82fdc8c9806ad523b2933855e209 /src/osmo-bsc/bsc_vty.c
parent335d7f730e525da5a2f0e3c15498a726749e827f (diff)
fix TSC / TSC Set used for Handover
From the nature of the lchan_activate_info.tsc_set and .tsc, it is easy to forget to set tsc_set,tsc = -1 to use default TSC Set and TSC values. Handover code is one such instance that forgets to set -1. Change the semantics of tsc_set and tsc so that this kind of error can not happen again as easily: use a separate bool to flag whether to use the default config or explicit values. Implicitly fix the lchan_activate_infos "launched" in handover_fsm.c as well as abis_rsl_chan_rqd_queue_poll(). Related: OS#5244 SYS#4895 Related: I1ed6f068c85b01e5a2d7b5f2651498a1521f89af (osmo-ttcn3-hacks) Change-Id: Iae20df4387c3d75752301bd5daeeea7508966393
Diffstat (limited to 'src/osmo-bsc/bsc_vty.c')
-rw-r--r--src/osmo-bsc/bsc_vty.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/src/osmo-bsc/bsc_vty.c b/src/osmo-bsc/bsc_vty.c
index 5ccd78487..bd6155519 100644
--- a/src/osmo-bsc/bsc_vty.c
+++ b/src/osmo-bsc/bsc_vty.c
@@ -849,6 +849,7 @@ static int ho_or_as(struct vty *vty, const char *argv[], int argc)
return CMD_WARNING;
}
+/* tsc_set and tsc: -1 to automatically determine which TSC Set / which TSC to use. */
static int trigger_vamos_mode_modify(struct vty *vty, struct gsm_lchan *lchan, bool vamos, int tsc_set, int tsc)
{
struct lchan_modify_info info = {
@@ -856,8 +857,14 @@ static int trigger_vamos_mode_modify(struct vty *vty, struct gsm_lchan *lchan, b
.ch_mode_rate = lchan->current_ch_mode_rate,
.requires_voice_stream = (lchan->fi_rtp != NULL),
.vamos = vamos,
- .tsc_set = tsc_set,
- .tsc = tsc,
+ .tsc_set = {
+ .present = (tsc_set >= 0),
+ .val = tsc_set,
+ },
+ .tsc = {
+ .present = (tsc >= 0),
+ .val = tsc,
+ },
};
lchan_mode_modify(lchan, &info);
@@ -1540,10 +1547,7 @@ DEFUN(pdch_act, pdch_act_cmd,
/* Activate / Deactivate a single lchan with a specific codec mode */
static int lchan_act_single(struct vty *vty, struct gsm_lchan *lchan, const char *codec_str, int amr_mode, int activate)
{
- struct lchan_activate_info info = {
- .tsc_set = -1,
- .tsc = -1,
- };
+ struct lchan_activate_info info = {0};
uint16_t amr_modes[8] =
{ GSM0808_SC_CFG_AMR_4_75, GSM0808_SC_CFG_AMR_4_75_5_90_7_40_12_20, GSM0808_SC_CFG_AMR_5_90,
GSM0808_SC_CFG_AMR_6_70, GSM0808_SC_CFG_AMR_7_40, GSM0808_SC_CFG_AMR_7_95, GSM0808_SC_CFG_AMR_10_2,
@@ -1612,8 +1616,12 @@ static int lchan_act_single(struct vty *vty, struct gsm_lchan *lchan, const char
if (activate == 2 || lchan->vamos.is_secondary) {
info.vamos = true;
- info.tsc_set = lchan->vamos.is_secondary ? 1 : 0;
- info.tsc = 0;
+ if (lchan->vamos.is_secondary) {
+ info.tsc_set.present = true;
+ info.tsc_set.val = 1;
+ }
+ info.tsc.present = true;
+ info.tsc.val = 0;
info.ch_mode_rate.chan_mode = gsm48_chan_mode_to_vamos(info.ch_mode_rate.chan_mode);
}