diff options
| -rw-r--r-- | openbsc/src/osmo-bsc/osmo_bsc_ctrl.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_ctrl.c b/openbsc/src/osmo-bsc/osmo_bsc_ctrl.c index bdec2b89c..8f0db7e88 100644 --- a/openbsc/src/osmo-bsc/osmo_bsc_ctrl.c +++ b/openbsc/src/osmo-bsc/osmo_bsc_ctrl.c @@ -111,6 +111,75 @@ static int msc_connection_status_trap_cb(unsigned int subsys, unsigned int signa return 0; } +CTRL_CMD_DEFINE(bts_connection_status, "bts_connection_status"); +static int bts_connection_status = 0; + +static int get_bts_connection_status(struct ctrl_cmd *cmd, void *data) +{ + if (bts_connection_status) + cmd->reply = "connected"; + else + cmd->reply = "disconnected"; + return CTRL_CMD_REPLY; +} + +static int set_bts_connection_status(struct ctrl_cmd *cmd, void *data) +{ + return CTRL_CMD_ERROR; +} + +static int verify_bts_connection_status(struct ctrl_cmd *cmd, const char *value, void *data) +{ + cmd->reply = "Read-only property"; + return 1; +} + +static int bts_connection_status_trap_cb(unsigned int subsys, unsigned int signal, void *handler_data, void *signal_data) +{ + struct ctrl_cmd *cmd; + struct gsm_network *gsmnet = (struct gsm_network *)handler_data; + struct gsm_bts *bts; + int bts_current_status; + + if (signal != S_L_INP_TEI_DN && signal != S_L_INP_TEI_UP) { + return 0; + } + + bts_current_status = 0; + /* Check if OML on at least one BTS is up */ + llist_for_each_entry(bts, &gsmnet->bts_list, list) { + if (bts->oml_link) { + bts_current_status = 1; + break; + } + } + if (bts_connection_status == 0 && bts_current_status == 1) { + LOGP(DCTRL, LOGL_DEBUG, "BTS connection (re)established, sending TRAP.\n"); + } else if (bts_connection_status == 1 && bts_current_status == 0) { + LOGP(DCTRL, LOGL_DEBUG, "No more BTS connected, sending TRAP.\n"); + } else { + return 0; + } + + cmd = ctrl_cmd_create(tall_bsc_ctx, CTRL_TYPE_TRAP); + if (!cmd) { + LOGP(DCTRL, LOGL_ERROR, "Trap creation failed.\n"); + return 0; + } + + bts_connection_status = bts_current_status; + + cmd->id = "0"; + cmd->variable = "bts_connection_status"; + + get_bts_connection_status(cmd, NULL); + + ctrl_cmd_send_to_all(gsmnet->ctrl, cmd); + + talloc_free(cmd); + + return 0; +} static int get_bts_loc(struct ctrl_cmd *cmd, void *data); @@ -365,6 +434,12 @@ int bsc_ctrl_cmds_install(struct gsm_network *net) if (rc) goto end; rc = osmo_signal_register_handler(SS_MSC, &msc_connection_status_trap_cb, net); + if (rc) + goto end; + rc = ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_bts_connection_status); + if (rc) + goto end; + rc = osmo_signal_register_handler(SS_L_INPUT, &bts_connection_status_trap_cb, net); end: return rc; } |