You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
375 lines
8.7 KiB
375 lines
8.7 KiB
4 months ago
|
/* lnstat - Unified linux network statistics
|
||
|
|
*
|
||
|
|
* Copyright (C) 2004 by Harald Welte <laforge@gnumonks.org>
|
||
|
|
*
|
||
|
|
* Development of this code was funded by Astaro AG, http://www.astaro.com/
|
||
|
|
*
|
||
|
|
* Based on original concept and ideas from predecessor rtstat.c:
|
||
|
|
*
|
||
|
|
* Copyright 2001 by Robert Olsson <robert.olsson@its.uu.se>
|
||
|
|
* Uppsala University, Sweden
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Maximum number of fields that can be displayed */
|
||
|
|
#define MAX_FIELDS 128
|
||
|
|
|
||
|
|
/* Maximum number of header lines */
|
||
|
|
#define HDR_LINES 10
|
||
|
|
|
||
|
|
/* default field width if none specified */
|
||
|
|
#define FIELD_WIDTH_DEFAULT 8
|
||
|
|
#define FIELD_WIDTH_MAX 20
|
||
|
|
|
||
|
|
#define DEFAULT_INTERVAL 2
|
||
|
|
|
||
|
|
#define HDR_LINE_LENGTH (MAX_FIELDS*FIELD_WIDTH_MAX)
|
||
|
|
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <getopt.h>
|
||
|
|
|
||
|
|
#include <json_writer.h>
|
||
|
|
#include "lnstat.h"
|
||
|
|
|
||
|
|
static struct option opts[] = {
|
||
|
|
{ "version", 0, NULL, 'V' },
|
||
|
|
{ "count", 1, NULL, 'c' },
|
||
|
|
{ "dump", 0, NULL, 'd' },
|
||
|
|
{ "json", 0, NULL, 'j' },
|
||
|
|
{ "file", 1, NULL, 'f' },
|
||
|
|
{ "help", 0, NULL, 'h' },
|
||
|
|
{ "interval", 1, NULL, 'i' },
|
||
|
|
{ "keys", 1, NULL, 'k' },
|
||
|
|
{ "subject", 1, NULL, 's' },
|
||
|
|
{ "width", 1, NULL, 'w' },
|
||
|
|
{ "oneline", 0, NULL, 0 },
|
||
|
|
};
|
||
|
|
|
||
|
|
static int usage(char *name, int exit_code)
|
||
|
|
{
|
||
|
|
fprintf(stderr, "%s Version %s\n", name, LNSTAT_VERSION);
|
||
|
|
fprintf(stderr, "Copyright (C) 2004 by Harald Welte <laforge@gnumonks.org>\n");
|
||
|
|
fprintf(stderr, "This program is free software licensed under GNU GPLv2\nwith ABSOLUTELY NO WARRANTY.\n\n");
|
||
|
|
fprintf(stderr, "Parameters:\n");
|
||
|
|
fprintf(stderr, "\t-V --version\t\tPrint Version of Program\n");
|
||
|
|
fprintf(stderr, "\t-c --count <count>\t"
|
||
|
|
"Print <count> number of intervals\n");
|
||
|
|
fprintf(stderr, "\t-d --dump\t\t"
|
||
|
|
"Dump list of available files/keys\n");
|
||
|
|
fprintf(stderr, "\t-j --json\t\t"
|
||
|
|
"Display in JSON format\n");
|
||
|
|
fprintf(stderr, "\t-f --file <file>\tStatistics file to use\n");
|
||
|
|
fprintf(stderr, "\t-h --help\t\tThis help message\n");
|
||
|
|
fprintf(stderr, "\t-i --interval <intv>\t"
|
||
|
|
"Set interval to 'intv' seconds\n");
|
||
|
|
fprintf(stderr, "\t-k --keys k,k,k,...\tDisplay only keys specified\n");
|
||
|
|
fprintf(stderr, "\t-s --subject [0-2]\tControl header printing:\n");
|
||
|
|
fprintf(stderr, "\t\t\t\t0 = never\n");
|
||
|
|
fprintf(stderr, "\t\t\t\t1 = once\n");
|
||
|
|
fprintf(stderr, "\t\t\t\t2 = every 20 lines (default))\n");
|
||
|
|
fprintf(stderr, "\t-w --width n,n,n,...\tWidth for each field\n");
|
||
|
|
fprintf(stderr, "\n");
|
||
|
|
|
||
|
|
exit(exit_code);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct field_param {
|
||
|
|
const char *name;
|
||
|
|
struct lnstat_field *lf;
|
||
|
|
struct {
|
||
|
|
unsigned int width;
|
||
|
|
} print;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct field_params {
|
||
|
|
unsigned int num;
|
||
|
|
struct field_param params[MAX_FIELDS];
|
||
|
|
};
|
||
|
|
|
||
|
|
static void print_line(FILE *of, const struct lnstat_file *lnstat_files,
|
||
|
|
const struct field_params *fp)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < fp->num; i++) {
|
||
|
|
const struct lnstat_field *lf = fp->params[i].lf;
|
||
|
|
|
||
|
|
fprintf(of, "%*lu|", fp->params[i].print.width, lf->result);
|
||
|
|
}
|
||
|
|
fputc('\n', of);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void print_json(FILE *of, const struct lnstat_file *lnstat_files,
|
||
|
|
const struct field_params *fp)
|
||
|
|
{
|
||
|
|
json_writer_t *jw = jsonw_new(of);
|
||
|
|
int i;
|
||
|
|
|
||
|
|
jsonw_start_object(jw);
|
||
|
|
for (i = 0; i < fp->num; i++) {
|
||
|
|
const struct lnstat_field *lf = fp->params[i].lf;
|
||
|
|
|
||
|
|
jsonw_uint_field(jw, lf->name, lf->result);
|
||
|
|
}
|
||
|
|
jsonw_end_object(jw);
|
||
|
|
jsonw_destroy(&jw);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* find lnstat_field according to user specification */
|
||
|
|
static int map_field_params(struct lnstat_file *lnstat_files,
|
||
|
|
struct field_params *fps, int interval)
|
||
|
|
{
|
||
|
|
int i, j = 0;
|
||
|
|
struct lnstat_file *lf;
|
||
|
|
|
||
|
|
/* no field specification on commandline, need to build default */
|
||
|
|
if (!fps->num) {
|
||
|
|
for (lf = lnstat_files; lf; lf = lf->next) {
|
||
|
|
for (i = 0; i < lf->num_fields; i++) {
|
||
|
|
fps->params[j].lf = &lf->fields[i];
|
||
|
|
fps->params[j].lf->file->interval.tv_sec =
|
||
|
|
interval;
|
||
|
|
if (!fps->params[j].print.width)
|
||
|
|
fps->params[j].print.width =
|
||
|
|
FIELD_WIDTH_DEFAULT;
|
||
|
|
|
||
|
|
if (++j >= MAX_FIELDS - 1) {
|
||
|
|
fprintf(stderr,
|
||
|
|
"WARN: MAX_FIELDS (%d) reached, truncating number of keys\n",
|
||
|
|
MAX_FIELDS);
|
||
|
|
goto full;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
full:
|
||
|
|
fps->num = j;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < fps->num; i++) {
|
||
|
|
fps->params[i].lf = lnstat_find_field(lnstat_files,
|
||
|
|
fps->params[i].name);
|
||
|
|
if (!fps->params[i].lf) {
|
||
|
|
fprintf(stderr, "Field `%s' unknown\n",
|
||
|
|
fps->params[i].name);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
fps->params[i].lf->file->interval.tv_sec = interval;
|
||
|
|
if (!fps->params[i].print.width)
|
||
|
|
fps->params[i].print.width = FIELD_WIDTH_DEFAULT;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct table_hdr {
|
||
|
|
int num_lines;
|
||
|
|
char *hdr[HDR_LINES];
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct table_hdr *build_hdr_string(struct lnstat_file *lnstat_files,
|
||
|
|
struct field_params *fps,
|
||
|
|
int linewidth)
|
||
|
|
{
|
||
|
|
int h, i;
|
||
|
|
static struct table_hdr th;
|
||
|
|
int ofs = 0;
|
||
|
|
|
||
|
|
for (i = 0; i < HDR_LINES; i++)
|
||
|
|
th.hdr[i] = calloc(1, HDR_LINE_LENGTH);
|
||
|
|
|
||
|
|
for (i = 0; i < fps->num; i++) {
|
||
|
|
char *cname, *fname = fps->params[i].lf->name;
|
||
|
|
unsigned int width = fps->params[i].print.width;
|
||
|
|
|
||
|
|
snprintf(th.hdr[0]+ofs, width+2, "%*.*s|", width, width,
|
||
|
|
fps->params[i].lf->file->basename);
|
||
|
|
|
||
|
|
cname = fname;
|
||
|
|
for (h = 1; h < HDR_LINES; h++) {
|
||
|
|
if (cname - fname >= strlen(fname))
|
||
|
|
snprintf(th.hdr[h]+ofs, width+2,
|
||
|
|
"%*.*s|", width, width, "");
|
||
|
|
else {
|
||
|
|
th.num_lines = h+1;
|
||
|
|
snprintf(th.hdr[h]+ofs, width+2,
|
||
|
|
"%*.*s|", width, width, cname);
|
||
|
|
}
|
||
|
|
cname += width;
|
||
|
|
}
|
||
|
|
ofs += width+1;
|
||
|
|
}
|
||
|
|
/* fill in spaces */
|
||
|
|
for (h = 1; h <= th.num_lines; h++) {
|
||
|
|
for (i = 0; i < ofs; i++) {
|
||
|
|
if (th.hdr[h][i] == '\0')
|
||
|
|
th.hdr[h][i] = ' ';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return &th;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int print_hdr(FILE *of, struct table_hdr *th)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < th->num_lines; i++) {
|
||
|
|
fputs(th->hdr[i], of);
|
||
|
|
fputc('\n', of);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
struct lnstat_file *lnstat_files;
|
||
|
|
const char *basename;
|
||
|
|
int i, c;
|
||
|
|
int interval = DEFAULT_INTERVAL;
|
||
|
|
int hdr = 2;
|
||
|
|
enum {
|
||
|
|
MODE_DUMP,
|
||
|
|
MODE_JSON,
|
||
|
|
MODE_NORMAL,
|
||
|
|
} mode = MODE_NORMAL;
|
||
|
|
unsigned long count = 0;
|
||
|
|
struct table_hdr *header;
|
||
|
|
static struct field_params fp;
|
||
|
|
int num_req_files = 0;
|
||
|
|
char *req_files[LNSTAT_MAX_FILES];
|
||
|
|
|
||
|
|
/* backwards compatibility mode for old tools */
|
||
|
|
basename = strrchr(argv[0], '/');
|
||
|
|
if (basename)
|
||
|
|
basename += 1; /* name after slash */
|
||
|
|
else
|
||
|
|
basename = argv[0]; /* no slash */
|
||
|
|
|
||
|
|
if (!strcmp(basename, "rtstat")) {
|
||
|
|
/* rtstat compatibility mode */
|
||
|
|
req_files[0] = "rt_cache";
|
||
|
|
num_req_files = 1;
|
||
|
|
} else if (!strcmp(basename, "ctstat")) {
|
||
|
|
/* ctstat compatibility mode */
|
||
|
|
req_files[0] = "ip_conntrack";
|
||
|
|
num_req_files = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
while ((c = getopt_long(argc, argv, "Vc:djpf:h?i:k:s:w:",
|
||
|
|
opts, NULL)) != -1) {
|
||
|
|
int len = 0;
|
||
|
|
char *tmp, *tok;
|
||
|
|
|
||
|
|
switch (c) {
|
||
|
|
case 'c':
|
||
|
|
count = strtoul(optarg, NULL, 0);
|
||
|
|
break;
|
||
|
|
case 'd':
|
||
|
|
mode = MODE_DUMP;
|
||
|
|
break;
|
||
|
|
case 'j':
|
||
|
|
mode = MODE_JSON;
|
||
|
|
break;
|
||
|
|
case 'f':
|
||
|
|
req_files[num_req_files++] = strdup(optarg);
|
||
|
|
break;
|
||
|
|
case '?':
|
||
|
|
case 'h':
|
||
|
|
usage(argv[0], 0);
|
||
|
|
break;
|
||
|
|
case 'i':
|
||
|
|
sscanf(optarg, "%u", &interval);
|
||
|
|
break;
|
||
|
|
case 'k':
|
||
|
|
tmp = strdup(optarg);
|
||
|
|
if (!tmp)
|
||
|
|
break;
|
||
|
|
for (tok = strtok(tmp, ",");
|
||
|
|
tok;
|
||
|
|
tok = strtok(NULL, ",")) {
|
||
|
|
if (fp.num >= MAX_FIELDS) {
|
||
|
|
fprintf(stderr,
|
||
|
|
"WARN: too many keys requested: (%d max)\n",
|
||
|
|
MAX_FIELDS);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
fp.params[fp.num++].name = tok;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 's':
|
||
|
|
sscanf(optarg, "%u", &hdr);
|
||
|
|
break;
|
||
|
|
case 'w':
|
||
|
|
tmp = strdup(optarg);
|
||
|
|
if (!tmp)
|
||
|
|
break;
|
||
|
|
i = 0;
|
||
|
|
for (tok = strtok(tmp, ",");
|
||
|
|
tok;
|
||
|
|
tok = strtok(NULL, ",")) {
|
||
|
|
len = strtoul(tok, NULL, 0);
|
||
|
|
if (len > FIELD_WIDTH_MAX)
|
||
|
|
len = FIELD_WIDTH_MAX;
|
||
|
|
fp.params[i].print.width = len;
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
if (i == 1) {
|
||
|
|
for (i = 0; i < MAX_FIELDS; i++)
|
||
|
|
fp.params[i].print.width = len;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
usage(argv[0], 1);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
lnstat_files = lnstat_scan_dir(PROC_NET_STAT, num_req_files,
|
||
|
|
(const char **) req_files);
|
||
|
|
|
||
|
|
switch (mode) {
|
||
|
|
case MODE_DUMP:
|
||
|
|
lnstat_dump(stdout, lnstat_files);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MODE_NORMAL:
|
||
|
|
case MODE_JSON:
|
||
|
|
if (!map_field_params(lnstat_files, &fp, interval))
|
||
|
|
exit(1);
|
||
|
|
|
||
|
|
header = build_hdr_string(lnstat_files, &fp, 80);
|
||
|
|
if (!header)
|
||
|
|
exit(1);
|
||
|
|
|
||
|
|
if (interval < 1)
|
||
|
|
interval = 1;
|
||
|
|
|
||
|
|
for (i = 0; i < count || !count; i++) {
|
||
|
|
lnstat_update(lnstat_files);
|
||
|
|
if (mode == MODE_JSON)
|
||
|
|
print_json(stdout, lnstat_files, &fp);
|
||
|
|
else {
|
||
|
|
if ((hdr > 1 && !(i % 20)) ||
|
||
|
|
(hdr == 1 && i == 0))
|
||
|
|
print_hdr(stdout, header);
|
||
|
|
print_line(stdout, lnstat_files, &fp);
|
||
|
|
}
|
||
|
|
fflush(stdout);
|
||
|
|
if (i < count - 1 || !count)
|
||
|
|
sleep(interval);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|