/*
top.c -- Show real-time statistics from a running tincd
- Copyright (C) 2011 Guus Sliepen <guus@tinc-vpn.org>
+ Copyright (C) 2011-2013 Guus Sliepen <guus@tinc-vpn.org>
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
#include "system.h"
+#ifdef HAVE_CURSES
+
+#undef KEY_EVENT /* There are conflicting declarations for KEY_EVENT in Windows wincon.h and curses.h. */
#include <curses.h>
#include "control_common.h"
+#include "list.h"
+#include "names.h"
#include "tincctl.h"
#include "top.h"
+#include "xalloc.h"
-void top(int fd) {
- initscr();
+typedef struct nodestats_t {
+ char *name;
+ int i;
+ uint64_t in_packets;
+ uint64_t in_bytes;
+ uint64_t out_packets;
+ uint64_t out_bytes;
+ float in_packets_rate;
+ float in_bytes_rate;
+ float out_packets_rate;
+ float out_bytes_rate;
+ bool known;
+} nodestats_t;
+
+static const char *const sortname[] = {
+ "name",
+ "in pkts",
+ "in bytes",
+ "out pkts",
+ "out bytes",
+ "tot pkts",
+ "tot bytes",
+};
+
+static int sortmode = 0;
+static bool cumulative = false;
+
+static list_t node_list;
+static struct timeval cur, prev, diff;
+static int delay = 1000;
+static bool changed = true;
+static const char *bunit = "bytes";
+static float bscale = 1;
+static const char *punit = "pkts";
+static float pscale = 1;
+
+static bool update(int fd) {
+ if(!sendline(fd, "%d %d", CONTROL, REQ_DUMP_TRAFFIC)) {
+ return false;
+ }
+
+ gettimeofday(&cur, NULL);
+
+ timersub(&cur, &prev, &diff);
+ prev = cur;
+ float interval = diff.tv_sec + diff.tv_usec * 1e-6;
+
+ char line[4096];
+ char name[4096];
+ int code;
+ int req;
+ uint64_t in_packets;
+ uint64_t in_bytes;
+ uint64_t out_packets;
+ uint64_t out_bytes;
+
+ for list_each(nodestats_t, ns, &node_list) {
+ ns->known = false;
+ }
- timeout(1000);
+ while(recvline(fd, line, sizeof(line))) {
+ int n = sscanf(line, "%d %d %4095s %"PRIu64" %"PRIu64" %"PRIu64" %"PRIu64, &code, &req, name, &in_packets, &in_bytes, &out_packets, &out_bytes);
- do {
- sendline(fd, "%d %d", CONTROL, REQ_DUMP_TRAFFIC);
+ if(n == 2) {
+ return true;
+ }
+
+ if(n != 7) {
+ return false;
+ }
- erase();
+ nodestats_t *found = NULL;
- char line[4096];
- while(recvline(fd, line, sizeof line)) {
- char node[4096];
- int code;
- int req;
- uint64_t in_packets;
- uint64_t in_bytes;
- uint64_t out_packets;
- uint64_t out_bytes;
+ for list_each(nodestats_t, ns, &node_list) {
+ int result = strcmp(name, ns->name);
- int n = sscanf(line, "%d %d %s %"PRIu64" %"PRIu64" %"PRIu64" %"PRIu64, &code, &req, node, &in_packets, &in_bytes, &out_packets, &out_bytes);
+ if(result > 0) {
+ continue;
+ }
- if(n == 2)
+ if(result == 0) {
+ found = ns;
+ break;
+ } else {
+ found = xzalloc(sizeof(*found));
+ found->name = xstrdup(name);
+ list_insert_before(&node_list, node, found);
+ changed = true;
break;
+ }
+ }
+
+ if(!found) {
+ found = xzalloc(sizeof(*found));
+ found->name = xstrdup(name);
+ list_insert_tail(&node_list, found);
+ changed = true;
+ }
+
+ found->known = true;
+ found->in_packets_rate = (in_packets - found->in_packets) / interval;
+ found->in_bytes_rate = (in_bytes - found->in_bytes) / interval;
+ found->out_packets_rate = (out_packets - found->out_packets) / interval;
+ found->out_bytes_rate = (out_bytes - found->out_bytes) / interval;
+ found->in_packets = in_packets;
+ found->in_bytes = in_bytes;
+ found->out_packets = out_packets;
+ found->out_bytes = out_bytes;
+ }
+
+ return false;
+}
+
+static int cmpfloat(float a, float b) {
+ if(a < b) {
+ return -1;
+ } else if(a > b) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static int cmpu64(uint64_t a, uint64_t b) {
+ if(a < b) {
+ return -1;
+ } else if(a > b) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static int sortfunc(const void *a, const void *b) {
+ const nodestats_t *na = *(const nodestats_t **)a;
+ const nodestats_t *nb = *(const nodestats_t **)b;
+ int result;
+
+ switch(sortmode) {
+ case 1:
+ if(cumulative) {
+ result = -cmpu64(na->in_packets, nb->in_packets);
+ } else {
+ result = -cmpfloat(na->in_packets_rate, nb->in_packets_rate);
+ }
+
+ break;
+
+ case 2:
+ if(cumulative) {
+ result = -cmpu64(na->in_bytes, nb->in_bytes);
+ } else {
+ result = -cmpfloat(na->in_bytes_rate, nb->in_bytes_rate);
+ }
+
+ break;
+
+ case 3:
+ if(cumulative) {
+ result = -cmpu64(na->out_packets, nb->out_packets);
+ } else {
+ result = -cmpfloat(na->out_packets_rate, nb->out_packets_rate);
+ }
+
+ break;
+
+ case 4:
+ if(cumulative) {
+ result = -cmpu64(na->out_bytes, nb->out_bytes);
+ } else {
+ result = -cmpfloat(na->out_bytes_rate, nb->out_bytes_rate);
+ }
+
+ break;
+
+ case 5:
+ if(cumulative) {
+ result = -cmpu64(na->in_packets + na->out_packets, nb->in_packets + nb->out_packets);
+ } else {
+ result = -cmpfloat(na->in_packets_rate + na->out_packets_rate, nb->in_packets_rate + nb->out_packets_rate);
+ }
+
+ break;
- if(n != 7) {
- fprintf(stderr, "Error receiving traffic information\n");
- return;
+ case 6:
+ if(cumulative) {
+ result = -cmpu64(na->in_bytes + na->out_bytes, nb->in_bytes + nb->out_bytes);
+ } else {
+ result = -cmpfloat(na->in_bytes_rate + na->out_bytes_rate, nb->in_bytes_rate + nb->out_bytes_rate);
+ }
+
+ break;
+
+ default:
+ result = strcmp(na->name, nb->name);
+ break;
+ }
+
+ if(result) {
+ return result;
+ } else {
+ return na->i - nb->i;
+ }
+}
+
+static void redraw(void) {
+ erase();
+
+ mvprintw(0, 0, "Tinc %-16s Nodes: %4d Sort: %-10s %s", netname ? : "", node_list.count, sortname[sortmode], cumulative ? "Cumulative" : "Current");
+ attrset(A_REVERSE);
+ mvprintw(2, 0, "Node IN %s IN %s OUT %s OUT %s", punit, bunit, punit, bunit);
+ chgat(-1, A_REVERSE, 0, NULL);
+
+ static nodestats_t **sorted = 0;
+ static int n = 0;
+
+ if(changed) {
+ n = 0;
+ sorted = xrealloc(sorted, node_list.count * sizeof(*sorted));
+
+ for list_each(nodestats_t, ns, &node_list) {
+ sorted[n++] = ns;
+ }
+
+ changed = false;
+ }
+
+ for(int i = 0; i < n; i++) {
+ sorted[i]->i = i;
+ }
+
+ if(sorted) {
+ qsort(sorted, n, sizeof(*sorted), sortfunc);
+ }
+
+ for(int i = 0, row = 3; i < n; i++, row++) {
+ nodestats_t *node = sorted[i];
+
+ if(node->known)
+ if(node->in_packets_rate || node->out_packets_rate) {
+ attrset(A_BOLD);
+ } else {
+ attrset(A_NORMAL);
+ } else {
+ attrset(A_DIM);
+ }
+
+ if(cumulative)
+ mvprintw(row, 0, "%-16s %10.0f %10.0f %10.0f %10.0f",
+ node->name, node->in_packets * pscale, node->in_bytes * bscale, node->out_packets * pscale, node->out_bytes * bscale);
+ else
+ mvprintw(row, 0, "%-16s %10.0f %10.0f %10.0f %10.0f",
+ node->name, node->in_packets_rate * pscale, node->in_bytes_rate * bscale, node->out_packets_rate * pscale, node->out_bytes_rate * bscale);
+ }
+
+ attrset(A_NORMAL);
+ move(1, 0);
+
+ refresh();
+}
+
+void top(int fd) {
+ initscr();
+ timeout(delay);
+ bool running = true;
+
+ while(running) {
+ if(!update(fd)) {
+ break;
+ }
+
+ redraw();
+
+ switch(getch()) {
+ case 's': {
+ timeout(-1);
+ float input = delay * 1e-3;
+ mvprintw(1, 0, "Change delay from %.1fs to: ", input);
+ scanw("%f", &input);
+
+ if(input < 0.1) {
+ input = 0.1;
}
- printw("%16s %8"PRIu64" %8"PRIu64" %8"PRIu64" %8"PRIu64"\n", node, in_packets, in_bytes, out_packets, out_bytes);
+ delay = input * 1e3;
+ timeout(delay);
+ break;
}
- refresh();
+ case 'c':
+ cumulative = !cumulative;
+ break;
+
+ case 'n':
+ sortmode = 0;
+ break;
+
+ case 'i':
+ sortmode = 2;
+ break;
+
+ case 'I':
+ sortmode = 1;
+ break;
+
+ case 'o':
+ sortmode = 4;
+ break;
- } while(getch() == ERR);
+ case 'O':
+ sortmode = 3;
+ break;
+
+ case 't':
+ sortmode = 6;
+ break;
+
+ case 'T':
+ sortmode = 5;
+ break;
+
+ case 'b':
+ bunit = "bytes";
+ bscale = 1;
+ punit = "pkts";
+ pscale = 1;
+ break;
+
+ case 'k':
+ bunit = "kbyte";
+ bscale = 1e-3;
+ punit = "pkts";
+ pscale = 1;
+ break;
+
+ case 'M':
+ bunit = "Mbyte";
+ bscale = 1e-6;
+ punit = "kpkt";
+ pscale = 1e-3;
+ break;
+
+ case 'G':
+ bunit = "Gbyte";
+ bscale = 1e-9;
+ punit = "Mpkt";
+ pscale = 1e-6;
+ break;
+
+ case 'q':
+ case KEY_BREAK:
+ running = false;
+ break;
+
+ default:
+ break;
+ }
+ }
endwin();
}
+
+#endif
projects / tinc / blobdiff