+++ /dev/null
-/* 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 64
-
-/* 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 "lnstat.h"
-
-static struct option opts[] = {
- { "version", 0, NULL, 'V' },
- { "count", 1, NULL, 'c' },
- { "dump", 1, NULL, 'd' },
- { "file", 1, NULL, 'f' },
- { "help", 0, NULL, 'h' },
- { "interval", 1, NULL, 'i' },
- { "key", 1, NULL, 'k' },
- { "subject", 1, NULL, 's' },
- { "width", 1, NULL, 'w' },
-};
-
-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 --dumpt\t\t"
- "Dump list of available files/keys\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]\t?\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++) {
- struct lnstat_field *lf = fp->params[i].lf;
- char formatbuf[255];
-
- snprintf(formatbuf, sizeof(formatbuf)-1, "%%%ulu|",
- fp->params[i].print.width);
- fprintf(of, formatbuf, lf->result);
- }
- fputc('\n', of);
-}
-
-/* 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;
- j++;
- }
- }
- 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] = malloc(HDR_LINE_LENGTH);
- memset(th.hdr[i], 0, sizeof(th.hdr[i]));
- }
-
- for (i = 0; i < fps->num; i++) {
- char *cname, *fname = fps->params[i].lf->name;
- char fmt[12];
- unsigned int width = fps->params[i].print.width;
-
- snprintf(fmt, sizeof(fmt)-1, "%%%u.%us|", width, width);
-
- snprintf(th.hdr[0]+ofs, width+2, fmt,
- 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, fmt, "");
- else {
- th.num_lines = h+1;
- snprintf(th.hdr[h]+ofs, width+2, fmt, 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 c;
- int interval = DEFAULT_INTERVAL;
- int hdr = 2;
- enum {
- MODE_DUMP,
- MODE_NORMAL,
- } mode = MODE_NORMAL;
-
- unsigned long count = 1;
- 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:df:h?i:k:s:w:",
- opts, NULL)) != -1) {
- int i, len = 0;
- char *tmp, *tok;
-
- switch (c) {
- case 'c':
- count = strtoul(optarg, NULL, 0);
- break;
- case 'd':
- mode = MODE_DUMP;
- 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)
- 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) {
- int i;
- struct table_hdr *header;
- case MODE_DUMP:
- lnstat_dump(stderr, lnstat_files);
- break;
- case MODE_NORMAL:
-
- 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; i++) {
- if ((hdr > 1 && (! (i % 20))) || (hdr == 1 && i == 0))
- print_hdr(stdout, header);
- lnstat_update(lnstat_files);
- print_line(stdout, lnstat_files, &fp);
- sleep(interval);
- }
- }
-
- return 1;
-}
-
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