mirror of https://gerrit.osmocom.org/libosmocore
180 lines
4.5 KiB
C
180 lines
4.5 KiB
C
/*! \file fsm_ctrl_commands.c */
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/* (C) 2017 by Harald Welte <laforge@gnumonks.org>
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* All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <string.h>
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#include <errno.h>
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#include <osmocom/core/fsm.h>
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#include <osmocom/ctrl/control_cmd.h>
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#include <osmocom/ctrl/control_if.h>
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/*! control interface lookup function for FSM's
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* \param[in] data Private data passed to controlif_setup()
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* \param[in] vline Vector of the line holding the command string
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* \param[out] node_type type (CTRL_NODE_) that was determined
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* \param[out] node_data private data of node that was determined
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* \param i Current index into vline, up to which it is parsed
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*/
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static int fsm_ctrl_node_lookup(void *data, vector vline, int *node_type,
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void **node_data, int *i)
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{
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struct osmo_fsm *fsm = NULL;
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struct osmo_fsm_inst *fi = NULL;;
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const char *token = vector_slot(vline, *i);
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switch (*node_type) {
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case CTRL_NODE_ROOT:
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if (!strcmp(token, "fsm")) {
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const char *fsm_name;
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(*i)++;
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fsm_name = vector_lookup(vline, *i);
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if (!fsm_name)
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return -ERANGE;
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fsm = osmo_fsm_find_by_name(fsm_name);
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if (!fsm)
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return -ENODEV;
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*node_data = fsm;
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*node_type = CTRL_NODE_FSM;
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} else
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return 0;
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break;
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case CTRL_NODE_FSM:
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fsm = *node_data;
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if (!strcmp(token, "name")) {
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const char *inst_name;
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(*i)++;
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inst_name = vector_lookup(vline, *i);
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if (!inst_name)
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return -ERANGE;
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fi = osmo_fsm_inst_find_by_name(fsm, inst_name);
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if (!fi)
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return -ENODEV;
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*node_data = fi;
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*node_type = CTRL_NODE_FSM_INST;
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} else if (!strcmp(token, "id")) {
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const char *inst_id;
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(*i)++;
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inst_id = vector_lookup(vline, *i);
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if (!inst_id)
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return -ERANGE;
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fi = osmo_fsm_inst_find_by_id(fsm, inst_id);
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if (!fi)
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return -ENODEV;
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*node_data = fi;
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*node_type = CTRL_NODE_FSM_INST;
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}
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break;
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default:
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return 0;
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}
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return 1;
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}
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static int get_fsm_inst_state(struct ctrl_cmd *cmd, void *data)
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{
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struct osmo_fsm_inst *fi = cmd->node;
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if (!fi) {
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cmd->reply = "No such FSM found";
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return CTRL_CMD_ERROR;
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}
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cmd->reply = talloc_strdup(cmd, osmo_fsm_state_name(fi->fsm, fi->state));
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return CTRL_CMD_REPLY;
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}
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CTRL_CMD_DEFINE_RO(fsm_inst_state, "state");
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static int get_fsm_inst_parent_name(struct ctrl_cmd *cmd, void *data)
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{
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struct osmo_fsm_inst *fi = cmd->node;
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if (!fi) {
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cmd->reply = "No such FSM found";
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return CTRL_CMD_ERROR;
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}
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if (!fi->proc.parent) {
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cmd->reply = "No parent";
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return CTRL_CMD_ERROR;
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}
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cmd->reply = talloc_strdup(cmd, fi->proc.parent->name);
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return CTRL_CMD_REPLY;
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}
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CTRL_CMD_DEFINE_RO(fsm_inst_parent_name, "parent-name");
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static int get_fsm_inst_timer(struct ctrl_cmd *cmd, void *data)
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{
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struct osmo_fsm_inst *fi = cmd->node;
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struct timeval remaining;
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if (!fi) {
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cmd->reply = "No such FSM found";
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return CTRL_CMD_ERROR;
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}
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if (osmo_timer_remaining(&fi->timer, NULL, &remaining) < 0)
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cmd->reply = "0,0,0";
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else
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cmd->reply = talloc_asprintf(cmd, "%u,%ld,%ld", fi->T, remaining.tv_sec, remaining.tv_usec);
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return CTRL_CMD_REPLY;
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}
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CTRL_CMD_DEFINE_RO(fsm_inst_timer, "timer");
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static int get_fsm_inst_dump(struct ctrl_cmd *cmd, void *data)
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{
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struct osmo_fsm_inst *fi = cmd->node;
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struct osmo_fsm_inst *child;
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if (!fi) {
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cmd->reply = "No such FSM found";
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return CTRL_CMD_ERROR;
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}
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/* Fixed Part: Name, ID, log_level, state, timer number */
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cmd->reply = talloc_asprintf(cmd, "'%s','%s','%s','%s',%u", fi->name, fi->id,
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log_level_str(fi->log_level),
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osmo_fsm_state_name(fi->fsm, fi->state), fi->T);
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/* Variable Parts below */
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if (fi->T) {
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struct timeval remaining;
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int rc;
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rc = osmo_timer_remaining(&fi->timer, NULL, &remaining);
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if (rc == 0) {
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cmd->reply = talloc_asprintf_append(cmd->reply, ",timeout_sec=%ld,timeout_usec=%ld",
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remaining.tv_sec, remaining.tv_usec);
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}
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}
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if (fi->proc.parent)
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cmd->reply = talloc_asprintf_append(cmd->reply, ",parent='%s'", fi->proc.parent->name);
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llist_for_each_entry(child, &fi->proc.children, proc.child) {
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cmd->reply = talloc_asprintf_append(cmd->reply, ",child='%s'", child->name);
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}
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return CTRL_CMD_REPLY;
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}
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CTRL_CMD_DEFINE_RO(fsm_inst_dump, "dump");
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int osmo_fsm_ctrl_cmds_install(void)
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{
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int rc = 0;
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rc |= ctrl_cmd_install(CTRL_NODE_FSM_INST, &cmd_fsm_inst_dump);
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rc |= ctrl_cmd_install(CTRL_NODE_FSM_INST, &cmd_fsm_inst_state);
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rc |= ctrl_cmd_install(CTRL_NODE_FSM_INST, &cmd_fsm_inst_parent_name);
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rc |= ctrl_cmd_install(CTRL_NODE_FSM_INST, &cmd_fsm_inst_timer);
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rc |= ctrl_lookup_register(fsm_ctrl_node_lookup);
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return rc;
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}
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