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