217 lines
6.4 KiB
C
217 lines
6.4 KiB
C
/* OsmoBSC handover control interface implementation */
|
|
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
|
|
*
|
|
* All Rights Reserved
|
|
*
|
|
* Author: Philipp Maier <pmaier@sysmocom.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include <talloc.h>
|
|
#include <osmocom/bsc/vty.h>
|
|
#include <osmocom/bsc/handover_cfg.h>
|
|
#include <osmocom/bsc/gsm_data.h>
|
|
#include <osmocom/bsc/bts.h>
|
|
#include <osmocom/bsc/handover_decision_2.h>
|
|
#include <osmocom/ctrl/control_cmd.h>
|
|
|
|
/* In handover_cfg.h the config items are described in VTY syntax. To be able to
|
|
* use those here in the CTRL interface, we parse the config arguments like the
|
|
* VTY would. (the value specification may be in the form of "<from-to>" or
|
|
* "A|B|C|..." */
|
|
static bool verify_vty_cmd_arg(void *ctx, const char *range, const char *value)
|
|
{
|
|
bool success;
|
|
char *range_tok;
|
|
char *valid_val;
|
|
|
|
/* "default" value is always a valid value */
|
|
if (strcmp(value, "default") == 0)
|
|
return true;
|
|
|
|
/* Try to check for a range first since it is the most common case */
|
|
if (range[0] == '<') {
|
|
if (vty_cmd_range_match(range, value))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* Try to tokenize the string to check for distintinct values */
|
|
success = false;
|
|
range_tok = talloc_zero_size(ctx, strlen(range) + 1);
|
|
memcpy(range_tok, range, strlen(range));
|
|
valid_val = strtok(range_tok, "|");
|
|
while (valid_val != NULL) {
|
|
if (strcmp(valid_val, value) == 0) {
|
|
success = true;
|
|
break;
|
|
}
|
|
valid_val = strtok(NULL, "|");
|
|
}
|
|
|
|
talloc_free(range_tok);
|
|
return success;
|
|
}
|
|
|
|
/* NOTE: The following macro scheme has been designed for using it in the VTY
|
|
* code. However, for the most part it also works for CTRL interface code as
|
|
* well. */
|
|
#define HO_CFG_ONE_MEMBER(TYPE, NAME, DEFAULT_VAL, VTY_CMD_PREFIX, VTY_CMD, VTY_CMD_ARG, VTY_ARG_EVAL, VTY_WRITE_FMT, VTY_WRITE_CONV, VTY6) \
|
|
CTRL_CMD_DEFINE(NAME, VTY_CMD_PREFIX VTY_CMD); \
|
|
static int get_##NAME(struct ctrl_cmd *cmd, void *_data) \
|
|
{ \
|
|
struct gsm_network *net = cmd->node; \
|
|
struct handover_cfg *ho = net->ho; \
|
|
TYPE val; \
|
|
if (ho_isset_##NAME(ho)) { \
|
|
val = ho_get_##NAME(ho); \
|
|
cmd->reply = talloc_asprintf(cmd, VTY_WRITE_FMT, VTY_WRITE_CONV(val)); \
|
|
} else \
|
|
cmd->reply = talloc_asprintf(cmd, "%s", #DEFAULT_VAL); \
|
|
return CTRL_CMD_REPLY; \
|
|
} \
|
|
static int set_##NAME(struct ctrl_cmd *cmd, void *_data) \
|
|
{ \
|
|
struct gsm_network *net = cmd->node; \
|
|
struct handover_cfg *ho = net->ho; \
|
|
TYPE value; \
|
|
if (strcmp(cmd->value, "default") == 0) \
|
|
value = VTY_ARG_EVAL(#DEFAULT_VAL); \
|
|
else \
|
|
value = VTY_ARG_EVAL(cmd->value); \
|
|
ho_set_##NAME(ho, value); \
|
|
return get_##NAME(cmd, _data); \
|
|
} \
|
|
static int verify_##NAME(struct ctrl_cmd *cmd, const char *value, void *_data) \
|
|
{ \
|
|
if (verify_vty_cmd_arg(cmd, VTY_CMD_ARG, value) != true) \
|
|
return -1; \
|
|
return 0; \
|
|
} \
|
|
CTRL_CMD_DEFINE(bts_##NAME, VTY_CMD_PREFIX VTY_CMD); \
|
|
static int get_bts_##NAME(struct ctrl_cmd *cmd, void *_data) \
|
|
{ \
|
|
struct gsm_bts *bts = cmd->node; \
|
|
struct handover_cfg *ho = bts->ho; \
|
|
TYPE val; \
|
|
if (ho_isset_##NAME(ho)) { \
|
|
val = ho_get_##NAME(ho); \
|
|
cmd->reply = talloc_asprintf(cmd, VTY_WRITE_FMT, VTY_WRITE_CONV(val)); \
|
|
} else { \
|
|
cmd->reply = talloc_asprintf(cmd, "%s", #DEFAULT_VAL); \
|
|
} \
|
|
return CTRL_CMD_REPLY; \
|
|
} \
|
|
static int set_bts_##NAME(struct ctrl_cmd *cmd, void *_data) \
|
|
{ \
|
|
struct gsm_bts *bts = cmd->node; \
|
|
struct handover_cfg *ho = bts->ho; \
|
|
TYPE value; \
|
|
if (strcmp(cmd->value, "default") == 0) \
|
|
value = VTY_ARG_EVAL(#DEFAULT_VAL); \
|
|
else \
|
|
value = VTY_ARG_EVAL(cmd->value); \
|
|
ho_set_##NAME(ho, value); \
|
|
return get_bts_##NAME(cmd, _data); \
|
|
} \
|
|
static int verify_bts_##NAME(struct ctrl_cmd *cmd, const char *value, void *_data) \
|
|
{ \
|
|
return verify_##NAME(cmd, value, _data); \
|
|
} \
|
|
|
|
/* Expand the above macro using the definitions from handover_cfg.h */
|
|
HO_CFG_ALL_MEMBERS
|
|
#undef HO_CFG_ONE_MEMBER
|
|
|
|
CTRL_CMD_DEFINE(congestion_check_interval, "handover2 congestion-check");
|
|
static int get_congestion_check_interval(struct ctrl_cmd *cmd, void *_data)
|
|
{
|
|
struct gsm_network *net = cmd->node;
|
|
if (net->hodec2.congestion_check_interval_s > 0)
|
|
cmd->reply = talloc_asprintf(cmd, "%u", net->hodec2.congestion_check_interval_s);
|
|
else
|
|
cmd->reply = "disabled";
|
|
return CTRL_CMD_REPLY;
|
|
}
|
|
|
|
static int set_congestion_check_interval(struct ctrl_cmd *cmd, void *_data)
|
|
{
|
|
struct gsm_network *net = cmd->node;
|
|
int value;
|
|
|
|
/* Trigger congestion check and leave without changing anything */
|
|
if (strcmp(cmd->value, "now") == 0) {
|
|
hodec2_congestion_check(net);
|
|
return get_congestion_check_interval(cmd, _data);
|
|
}
|
|
|
|
if (strcmp(cmd->value, "disabled") == 0)
|
|
value = 0;
|
|
else
|
|
value = atoi(cmd->value);
|
|
hodec2_on_change_congestion_check_interval(net, value);
|
|
return get_congestion_check_interval(cmd, _data);
|
|
}
|
|
|
|
static int verify_congestion_check_interval(struct ctrl_cmd *cmd, const char *value, void *_data)
|
|
{
|
|
if (strcmp(value, "disabled") == 0)
|
|
return 0;
|
|
if (strcmp(value, "now") == 0)
|
|
return 0;
|
|
if (verify_vty_cmd_arg(cmd, "<1-999>", value))
|
|
return 0;
|
|
return -1;
|
|
}
|
|
|
|
/* Filter name member in cmd for illegal '/' characters */
|
|
static struct ctrl_cmd_element *filter_name(void *ctx,
|
|
struct ctrl_cmd_element *cmd)
|
|
{
|
|
unsigned int i;
|
|
char *name;
|
|
|
|
if (osmo_separated_identifiers_valid(cmd->name, " -"))
|
|
return cmd;
|
|
|
|
name = talloc_strdup(ctx, cmd->name);
|
|
for (i = 0; i < strlen(name); i++) {
|
|
if (name[i] == '/')
|
|
name[i] = '-';
|
|
}
|
|
|
|
cmd->name = name;
|
|
return cmd;
|
|
}
|
|
|
|
int bsc_ho_ctrl_cmds_install(void *ctx)
|
|
{
|
|
int rc = 0;
|
|
|
|
rc |= ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_congestion_check_interval);
|
|
|
|
#define HO_CFG_ONE_MEMBER(TYPE, NAME, DEFAULT_VAL, VTY0, VTY1, VTY2, VTY_ARG_EVAL, VTY4, VTY5, VTY6) \
|
|
rc |= ctrl_cmd_install(CTRL_NODE_ROOT, filter_name(ctx, &cmd_##NAME)); \
|
|
rc |= ctrl_cmd_install(CTRL_NODE_BTS, filter_name(ctx, &cmd_bts_##NAME)); \
|
|
|
|
HO_CFG_ALL_MEMBERS
|
|
#undef HO_CFG_ONE_MEMBER
|
|
|
|
return rc;
|
|
}
|