+++ /dev/null
-/*
- * m_police.c Parse/print policing module options.
- *
- * This program is free software; you can u32istribute 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.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- * FIXES: 19990619 - J Hadi Salim (hadi@cyberus.ca)
- * simple addattr packaging fix.
- * 2002: J Hadi Salim - Add tc action extensions syntax
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <string.h>
-
-#include "utils.h"
-#include "tc_util.h"
-
-struct action_util police_action_util = {
- .id = "police",
- .parse_aopt = act_parse_police,
- .print_aopt = print_police,
-};
-
-static void explain(void)
-{
- fprintf(stderr, "Usage: ... police rate BPS burst BYTES[/BYTES] [ mtu BYTES[/BYTES] ]\n");
- fprintf(stderr, " [ peakrate BPS ] [ avrate BPS ]\n");
- fprintf(stderr, " [ ACTIONTERM ]\n");
- fprintf(stderr, "Old Syntax ACTIONTERM := action <EXCEEDACT>[/NOTEXCEEDACT] \n");
- fprintf(stderr, "New Syntax ACTIONTERM := conform-exceed <EXCEEDACT>[/NOTEXCEEDACT] \n");
- fprintf(stderr, "Where: *EXCEEDACT := pipe | ok | reclassify | drop | continue \n");
- fprintf(stderr, "Where: pipe is only valid for new syntax \n");
-}
-
-static void explain1(char *arg)
-{
- fprintf(stderr, "Illegal \"%s\"\n", arg);
-}
-
-#define usage() return(-1)
-
-
-char *police_action_n2a(int action, char *buf, int len)
-{
- switch (action) {
- case -1:
- return "continue";
- break;
- case TC_POLICE_OK:
- return "pass";
- break;
- case TC_POLICE_SHOT:
- return "drop";
- break;
- case TC_POLICE_RECLASSIFY:
- return "reclassify";
- case TC_POLICE_PIPE:
- return "pipe";
- default:
- snprintf(buf, len, "%d", action);
- return buf;
- }
-}
-
-int police_action_a2n(char *arg, int *result)
-{
- int res;
-
- if (matches(arg, "continue") == 0)
- res = -1;
- else if (matches(arg, "drop") == 0)
- res = TC_POLICE_SHOT;
- else if (matches(arg, "shot") == 0)
- res = TC_POLICE_SHOT;
- else if (matches(arg, "pass") == 0)
- res = TC_POLICE_OK;
- else if (strcmp(arg, "ok") == 0)
- res = TC_POLICE_OK;
- else if (matches(arg, "reclassify") == 0)
- res = TC_POLICE_RECLASSIFY;
- else if (matches(arg, "pipe") == 0)
- res = TC_POLICE_PIPE;
- else {
- char dummy;
- if (sscanf(arg, "%d%c", &res, &dummy) != 1)
- return -1;
- }
- *result = res;
- return 0;
-}
-
-
-int get_police_result(int *action, int *result, char *arg)
-{
- char *p = strchr(arg, '/');
-
- if (p)
- *p = 0;
-
- if (police_action_a2n(arg, action)) {
- if (p)
- *p = '/';
- return -1;
- }
-
- if (p) {
- *p = '/';
- if (police_action_a2n(p+1, result))
- return -1;
- }
- return 0;
-}
-
-
-int act_parse_police(struct action_util *a,int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
-{
- int argc = *argc_p;
- char **argv = *argv_p;
- int res = -1;
- int ok=0;
- struct tc_police p;
- __u32 rtab[256];
- __u32 ptab[256];
- __u32 avrate = 0;
- int presult = 0;
- unsigned buffer=0, mtu=0, mpu=0;
- int Rcell_log=-1, Pcell_log = -1;
- struct rtattr *tail;
-
- memset(&p, 0, sizeof(p));
- p.action = TC_POLICE_RECLASSIFY;
-
- if (a) /* new way of doing things */
- NEXT_ARG();
-
- if (argc <= 0)
- return -1;
-
- while (argc > 0) {
-
- if (matches(*argv, "index") == 0) {
- NEXT_ARG();
- if (get_u32(&p.index, *argv, 10)) {
- fprintf(stderr, "Illegal \"index\"\n");
- return -1;
- }
- } else if (matches(*argv, "burst") == 0 ||
- strcmp(*argv, "buffer") == 0 ||
- strcmp(*argv, "maxburst") == 0) {
- NEXT_ARG();
- if (buffer) {
- fprintf(stderr, "Double \"buffer/burst\" spec\n");
- return -1;
- }
- if (get_size_and_cell(&buffer, &Rcell_log, *argv) < 0) {
- explain1("buffer");
- return -1;
- }
- } else if (strcmp(*argv, "mtu") == 0 ||
- strcmp(*argv, "minburst") == 0) {
- NEXT_ARG();
- if (mtu) {
- fprintf(stderr, "Double \"mtu/minburst\" spec\n");
- return -1;
- }
- if (get_size_and_cell(&mtu, &Pcell_log, *argv) < 0) {
- explain1("mtu");
- return -1;
- }
- } else if (strcmp(*argv, "mpu") == 0) {
- NEXT_ARG();
- if (mpu) {
- fprintf(stderr, "Double \"mpu\" spec\n");
- return -1;
- }
- if (get_size(&mpu, *argv)) {
- explain1("mpu");
- return -1;
- }
- } else if (strcmp(*argv, "rate") == 0) {
- NEXT_ARG();
- if (p.rate.rate) {
- fprintf(stderr, "Double \"rate\" spec\n");
- return -1;
- }
- if (get_rate(&p.rate.rate, *argv)) {
- explain1("rate");
- return -1;
- }
- } else if (strcmp(*argv, "avrate") == 0) {
- NEXT_ARG();
- if (avrate) {
- fprintf(stderr, "Double \"avrate\" spec\n");
- return -1;
- }
- if (get_rate(&avrate, *argv)) {
- explain1("avrate");
- return -1;
- }
- } else if (matches(*argv, "peakrate") == 0) {
- NEXT_ARG();
- if (p.peakrate.rate) {
- fprintf(stderr, "Double \"peakrate\" spec\n");
- return -1;
- }
- if (get_rate(&p.peakrate.rate, *argv)) {
- explain1("peakrate");
- return -1;
- }
- } else if (matches(*argv, "reclassify") == 0) {
- p.action = TC_POLICE_RECLASSIFY;
- } else if (matches(*argv, "drop") == 0 ||
- matches(*argv, "shot") == 0) {
- p.action = TC_POLICE_SHOT;
- } else if (matches(*argv, "continue") == 0) {
- p.action = TC_POLICE_UNSPEC;
- } else if (matches(*argv, "pass") == 0) {
- p.action = TC_POLICE_OK;
- } else if (matches(*argv, "pipe") == 0) {
- p.action = TC_POLICE_PIPE;
- } else if (strcmp(*argv, "conform-exceed") == 0) {
- NEXT_ARG();
- if (get_police_result(&p.action, &presult, *argv)) {
- fprintf(stderr, "Illegal \"action\"\n");
- return -1;
- }
- } else if (strcmp(*argv, "help") == 0) {
- explain();
- return -1;
- } else {
- break;
- }
- ok++;
- argc--; argv++;
- }
-
- if (!ok)
- return -1;
-
- if (p.rate.rate && !buffer) {
- fprintf(stderr, "\"burst\" requires \"rate\".\n");
- return -1;
- }
- if (p.peakrate.rate) {
- if (!p.rate.rate) {
- fprintf(stderr, "\"peakrate\" requires \"rate\".\n");
- return -1;
- }
- if (!mtu) {
- fprintf(stderr, "\"mtu\" is required, if \"peakrate\" is requested.\n");
- return -1;
- }
- }
-
- if (p.rate.rate) {
- if ((Rcell_log = tc_calc_rtable(p.rate.rate, rtab, Rcell_log, mtu, mpu)) < 0) {
- fprintf(stderr, "TBF: failed to calculate rate table.\n");
- return -1;
- }
- p.burst = tc_calc_xmittime(p.rate.rate, buffer);
- p.rate.cell_log = Rcell_log;
- p.rate.mpu = mpu;
- }
- p.mtu = mtu;
- if (p.peakrate.rate) {
- if ((Pcell_log = tc_calc_rtable(p.peakrate.rate, ptab, Pcell_log, mtu, mpu)) < 0) {
- fprintf(stderr, "POLICE: failed to calculate peak rate table.\n");
- return -1;
- }
- p.peakrate.cell_log = Pcell_log;
- p.peakrate.mpu = mpu;
- }
-
- tail = NLMSG_TAIL(n);
- addattr_l(n, MAX_MSG, tca_id, NULL, 0);
- addattr_l(n, MAX_MSG, TCA_POLICE_TBF, &p, sizeof(p));
- if (p.rate.rate)
- addattr_l(n, MAX_MSG, TCA_POLICE_RATE, rtab, 1024);
- if (p.peakrate.rate)
- addattr_l(n, MAX_MSG, TCA_POLICE_PEAKRATE, ptab, 1024);
- if (avrate)
- addattr32(n, MAX_MSG, TCA_POLICE_AVRATE, avrate);
- if (presult)
- addattr32(n, MAX_MSG, TCA_POLICE_RESULT, presult);
-
- tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
- res = 0;
-
- *argc_p = argc;
- *argv_p = argv;
- return res;
-}
-
-int parse_police(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
-{
- return act_parse_police(NULL,argc_p,argv_p,tca_id,n);
-}
-
-int
-print_police(struct action_util *a, FILE *f, struct rtattr *arg)
-{
- SPRINT_BUF(b1);
- struct tc_police *p;
- struct rtattr *tb[TCA_POLICE_MAX+1];
- unsigned buffer;
-
- if (arg == NULL)
- return 0;
-
- parse_rtattr_nested(tb, TCA_POLICE_MAX, arg);
-
- if (tb[TCA_POLICE_TBF] == NULL) {
- fprintf(f, "[NULL police tbf]");
- return 0;
- }
-#ifndef STOOPID_8BYTE
- if (RTA_PAYLOAD(tb[TCA_POLICE_TBF]) < sizeof(*p)) {
- fprintf(f, "[truncated police tbf]");
- return -1;
- }
-#endif
- p = RTA_DATA(tb[TCA_POLICE_TBF]);
-
- fprintf(f, " police 0x%x ", p->index);
- fprintf(f, "rate %s ", sprint_rate(p->rate.rate, b1));
- buffer = ((double)p->rate.rate*tc_core_tick2usec(p->burst))/1000000;
- fprintf(f, "burst %s ", sprint_size(buffer, b1));
- fprintf(f, "mtu %s ", sprint_size(p->mtu, b1));
- if (show_raw)
- fprintf(f, "[%08x] ", p->burst);
- if (p->peakrate.rate)
- fprintf(f, "peakrate %s ", sprint_rate(p->peakrate.rate, b1));
- if (tb[TCA_POLICE_AVRATE])
- fprintf(f, "avrate %s ", sprint_rate(*(__u32*)RTA_DATA(tb[TCA_POLICE_AVRATE]), b1));
- fprintf(f, "action %s", police_action_n2a(p->action, b1, sizeof(b1)));
- if (tb[TCA_POLICE_RESULT]) {
- fprintf(f, "/%s ", police_action_n2a(*(int*)RTA_DATA(tb[TCA_POLICE_RESULT]), b1, sizeof(b1)));
- } else
- fprintf(f, " ");
- fprintf(f, "\nref %d bind %d\n",p->refcnt, p->bindcnt);
-
- return 0;
-}
-
-int
-tc_print_police(FILE *f, struct rtattr *arg) {
- return print_police(&police_action_util,f,arg);
-}
git://git.onelab.eu / iproute2.git / blobdiff