aboutsummaryrefslogtreecommitdiffstats
path: root/src/swanctl/commands/counters.c
blob: 77485c246ff20e6e4a4df75b9e2aac605798c7cb (plain)
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
/*
 * Copyright (C) 2017 Tobias Brunner
 * HSR Hochschule fuer Technik Rapperswil
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
 *
 * 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 General Public License
 * for more details.
 */

#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>

#include "command.h"

CALLBACK(counters_kv, int,
	void *null, vici_res_t *res, char *name, void *value, int len)
{
	if (chunk_printable(chunk_create(value, len), NULL, ' '))
	{
		printf("  %-22s: %.*s\n", name, len, value);
	}
	return 0;
}

CALLBACK(conns_sn, int,
	void *null, vici_res_t *res, char *name)
{
	printf("%s:\n", strlen(name) ? name : "global");
	return vici_parse_cb(res, NULL, counters_kv, NULL, NULL);
}

CALLBACK(counters_sn, int,
	void *null, vici_res_t *res, char *name)
{
	return vici_parse_cb(res, conns_sn, NULL, NULL, NULL);
}

static int counters(vici_conn_t *conn)
{
	vici_req_t *req;
	vici_res_t *res;
	command_format_options_t format = COMMAND_FORMAT_NONE;
	char *arg, *name = NULL;
	int ret;
	bool all = FALSE, reset = FALSE;

	while (TRUE)
	{
		switch (command_getopt(&arg))
		{
			case 'h':
				return command_usage(NULL);
			case 'P':
				format |= COMMAND_FORMAT_PRETTY;
				/* fall through to raw */
			case 'r':
				format |= COMMAND_FORMAT_RAW;
				continue;
			case 'n':
				name = arg;
				continue;
			case 'a':
				all = TRUE;
				continue;
			case 'R':
				reset = TRUE;
				continue;
			case EOF:
				break;
			default:
				return command_usage("invalid --counters option");
		}
		break;
	}
	if (reset)
	{
		req = vici_begin("reset-counters");
	}
	else
	{
		req = vici_begin("get-counters");
	}
	if (all)
	{
		vici_add_key_valuef(req, "all", "yes");
	}
	else if (name)
	{
		vici_add_key_valuef(req, "name", "%s", name);
	}

	res = vici_submit(req, conn);
	if (!res)
	{
		ret = errno;
		fprintf(stderr, "%s-counters request failed: %s\n",
				reset ? "reset" : "get", strerror(errno));
		return ret;
	}
	if (format & COMMAND_FORMAT_RAW)
	{
		vici_dump(res, "counters reply", format & COMMAND_FORMAT_PRETTY,
				  stdout);
	}
	else
	{
		if (streq(vici_find_str(res, "no", "success"), "yes"))
		{
			if (reset)
			{
				printf("reset-counters completed successfully\n");
			}
			else if (vici_parse_cb(res, counters_sn, NULL, NULL, NULL) != 0)
			{
				fprintf(stderr, "parsing get-counters reply failed: %s\n",
						strerror(errno));
			}
		}
		else
		{
			fprintf(stderr, "%s-counters failed: %s\n", reset ? "reset" : "get",
					vici_find_str(res, "", "errmsg"));
			ret = 1;
		}
	}
	vici_free_res(res);
	return 0;
}

/**
 * Register the command.
 */
static void __attribute__ ((constructor))reg()
{
	command_register((command_t) {
		counters, 'c', "counters", "list or reset IKE event counters",
		{"[--name <name>|--all] [--reset] [--raw|--pretty]"},
		{
			{"help",		'h', 0, "show usage information"},
			{"name",		'n', 1, "connection name, omit for global counters"},
			{"all",			'a', 0, "get/reset counters for all tracked connections"},
			{"reset",		'R', 0, "reset the counters"},
			{"raw",			'r', 0, "dump raw response message"},
			{"pretty",		'P', 0, "dump raw response message in pretty print"},
		}
	});
}