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libbsc: Add VTY command to re-send the SYSTEM INFORMATION to BTS 

This is useful if you are updating some configuration parameters which
affect the content of the SYSTEM INFORMATION messages.  Currently, we
only send them at the time the RSL connection is established (i.e. when
the BTS is initialized), so if you change something, you need to bring
down and re-start the BTS.

Using the newly-introduced "bts <0-255> resend-system-information"
command, you can re-generate + re-send SYSTEM INFORMATION without
bringing the BTS down, i.e. without any radio carrier downtime.

Change-Id: I326df47de98f6d36c9a4d2d5475225d1e62bafb5
This commit is contained in:
Harald Welte 2017-07-10 20:25:10 +02:00 committed by Neels Hofmeyr
parent 5a218c02d9
commit e168c122d3
1 changed files with 33 additions and 0 deletions
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33
src/libbsc/bsc_vty.c
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@ -3801,6 +3801,38 @@ DEFUN(restart_bts, restart_bts_cmd,
return CMD_SUCCESS;
}
DEFUN(bts_resend, bts_resend_cmd,
"bts <0-255> resend-system-information",
"BTS Specific Commands\n" "BTS Number\n"
"Re-generate + re-send BCCH SYSTEM INFORMATION\n")
{
struct gsm_network *gsmnet;
struct gsm_bts_trx *trx;
struct gsm_bts *bts;
unsigned int bts_nr;
gsmnet = gsmnet_from_vty(vty);
bts_nr = atoi(argv[0]);
if (bts_nr >= gsmnet->num_bts) {
vty_out(vty, "BTS number must be between 0 and %d. It was %d.%s",
gsmnet->num_bts, bts_nr, VTY_NEWLINE);
return CMD_WARNING;
}
bts = gsm_bts_num(gsmnet, bts_nr);
if (!bts) {
vty_out(vty, "BTS Nr. %d could not be found.%s", bts_nr, VTY_NEWLINE);
return CMD_WARNING;
}
llist_for_each_entry_reverse(trx, &bts->trx_list, list)
gsm_bts_trx_set_system_infos(trx);
return CMD_SUCCESS;
}
DEFUN(smscb_cmd, smscb_cmd_cmd,
"bts <0-255> smscb-command <1-4> HEXSTRING",
"BTS related commands\n" "BTS Number\n"
@ -4256,6 +4288,7 @@ int bsc_vty_init(struct gsm_network *network)
install_element(ENABLE_NODE, &drop_bts_cmd);
install_element(ENABLE_NODE, &restart_bts_cmd);
install_element(ENABLE_NODE, &bts_resend_cmd);
install_element(ENABLE_NODE, &pdch_act_cmd);
install_element(ENABLE_NODE, &lchan_act_cmd);
install_element(ENABLE_NODE, &lchan_mdcx_cmd);