1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*! \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;
}
|
