Harald Welte | 1a36f33 | 2018-06-04 17:36:33 +0200 | [diff] [blame] | 1 | /* Simple Osmocom System Monitor (osysmon) */ |
| 2 | |
| 3 | /* (C) 2018 by Harald Welte <laforge@gnumonks.org> |
| 4 | * All Rights Reserved. |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
| 21 | * MA 02110-1301, USA. |
| 22 | */ |
| 23 | |
| 24 | #include <unistd.h> |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
| 28 | #include <signal.h> |
| 29 | |
| 30 | #include "osysmon.h" |
| 31 | #include "value_node.h" |
| 32 | |
| 33 | #include <osmocom/core/msgb.h> |
| 34 | #include <osmocom/core/logging.h> |
| 35 | #include <osmocom/core/application.h> |
| 36 | |
| 37 | static struct log_info log_info = {}; |
| 38 | |
| 39 | static int osysmon_go_parent(struct vty *vty) |
| 40 | { |
| 41 | switch (vty->node) { |
| 42 | case CTRL_CLIENT_NODE: |
| 43 | case CTRL_CLIENT_GETVAR_NODE: |
| 44 | return osysmon_ctrl_go_parent(vty); |
| 45 | } |
| 46 | return vty->node; |
| 47 | } |
| 48 | |
| 49 | static int osysmon_is_config_node(struct vty *vty, int node) |
| 50 | { |
| 51 | switch (node) { |
| 52 | /* no non-config-nodes */ |
| 53 | default: |
| 54 | return 1; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | |
| 59 | static struct vty_app_info vty_info = { |
| 60 | .name = "osysmon", |
| 61 | .copyright = |
| 62 | "Copyright (C) 2008-2018 Harald Welte\r\n" |
| 63 | "License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>\r\n" |
| 64 | "This is free software: you are free to change and redistribute it.\r\n" |
| 65 | "There is NO WARRANTY, to the extent permitted by law.\r\n", |
| 66 | .version = "0.0", //PACKAGE_VERSION |
| 67 | .go_parent_cb = osysmon_go_parent, |
| 68 | .is_config_node = osysmon_is_config_node, |
| 69 | }; |
| 70 | |
| 71 | |
| 72 | static const char *config_file = "osysmon.cfg"; |
| 73 | struct osysmon_state *g_oss; |
| 74 | |
| 75 | |
| 76 | static void print_node(struct value_node *node) |
| 77 | { |
| 78 | if (node->value) { |
| 79 | printf("%s: %s\n", node->name, node->value); |
| 80 | } else { |
| 81 | struct value_node *vn; |
| 82 | llist_for_each_entry(vn, &node->children, list) |
| 83 | print_node(vn); |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | static void display_update(struct value_node *root) |
| 88 | { |
| 89 | print_node(root); |
| 90 | } |
| 91 | |
| 92 | static void signal_handler(int signal) |
| 93 | { |
| 94 | fprintf(stderr, "Signal %u received", signal); |
| 95 | |
| 96 | switch(signal) { |
| 97 | case SIGUSR1: |
| 98 | talloc_report(g_oss, stderr); |
| 99 | break; |
| 100 | default: |
| 101 | break; |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | static void exit_help(void) |
| 106 | { |
| 107 | printf("Usage:\n"); |
| 108 | printf("\tosmo-ctrl-client HOST PORT get VARIABLE\n"); |
| 109 | printf("\tosmo-ctrl-client HOST PORT set VARIABLE VALUE\n"); |
| 110 | printf("\tosmo-ctrl-client HOST PORT monitor\n"); |
| 111 | exit(2); |
| 112 | } |
| 113 | |
| 114 | int main(int argc, char **argv) |
| 115 | { |
| 116 | int rc; |
| 117 | |
| 118 | osmo_init_logging2(NULL, &log_info); |
| 119 | |
| 120 | g_oss = talloc_zero(NULL, struct osysmon_state); |
| 121 | INIT_LLIST_HEAD(&g_oss->ctrl_clients); |
| 122 | |
| 123 | vty_init(&vty_info); |
Harald Welte | 32f7a99 | 2018-06-04 18:07:33 +0200 | [diff] [blame^] | 124 | osysmon_sysinfo_init(); |
Harald Welte | 1a36f33 | 2018-06-04 17:36:33 +0200 | [diff] [blame] | 125 | osysmon_ctrl_init(); |
| 126 | |
| 127 | rc = vty_read_config_file(config_file, NULL); |
| 128 | if (rc < 0) { |
| 129 | fprintf(stderr, "Failed to parse the config file\n"); |
| 130 | exit(2); |
| 131 | } |
| 132 | |
| 133 | signal(SIGUSR1, &signal_handler); |
| 134 | signal(SIGUSR2, &signal_handler); |
| 135 | osmo_init_ignore_signals(); |
| 136 | |
| 137 | while (1) { |
| 138 | struct value_node *root = value_node_add(g_oss, NULL, "root", NULL); |
Harald Welte | 32f7a99 | 2018-06-04 18:07:33 +0200 | [diff] [blame^] | 139 | osysmon_sysinfo_poll(root); |
Harald Welte | 1a36f33 | 2018-06-04 17:36:33 +0200 | [diff] [blame] | 140 | osysmon_ctrl_poll(root); |
Harald Welte | 32f7a99 | 2018-06-04 18:07:33 +0200 | [diff] [blame^] | 141 | |
Harald Welte | 1a36f33 | 2018-06-04 17:36:33 +0200 | [diff] [blame] | 142 | display_update(root); |
| 143 | value_node_del(root); |
| 144 | sleep(1); |
| 145 | } |
| 146 | |
| 147 | exit(0); |
| 148 | } |