* 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.
+ * 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 "utils.h"
#include "tc_util.h"
+static int act_parse_police(struct action_util *a, int *argc_p,
+ char ***argv_p, int tca_id, struct nlmsghdr *n);
+static int print_police(struct action_util *a, FILE *f, struct rtattr *tb);
+
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)
+static void usage(void)
{
- 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;
+ fprintf(stderr,
+ "Usage: ... police rate BPS burst BYTES[/BYTES] [ mtu BYTES[/BYTES] ]\n"
+ " [ peakrate BPS ] [ avrate BPS ] [ overhead BYTES ]\n"
+ " [ linklayer TYPE ] [ CONTROL ]\n"
+ "Where: CONTROL := conform-exceed <EXCEEDACT>[/NOTEXCEEDACT]\n"
+ " Define how to handle packets which exceed (<EXCEEDACT>)\n"
+ " or conform (<NOTEXCEEDACT>) the configured bandwidth limit.\n"
+ " EXCEEDACT/NOTEXCEEDACT := { pipe | ok | reclassify | drop | continue |\n"
+ " goto chain <CHAIN_INDEX> }\n");
+ exit(-1);
}
-
-int act_parse_police(struct action_util *a,int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
+static 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;
+ int ok = 0;
+ struct tc_police p = { .action = TC_POLICE_RECLASSIFY };
__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;
+ unsigned buffer = 0, mtu = 0, mpu = 0;
+ unsigned short overhead = 0;
+ unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */
+ int Rcell_log = -1, Pcell_log = -1;
struct rtattr *tail;
-
- memset(&p, 0, sizeof(p));
- p.action = TC_POLICE_RECLASSIFY;
+ __u64 rate64 = 0, prate64 = 0;
if (a) /* new way of doing things */
NEXT_ARG();
if (matches(*argv, "index") == 0) {
NEXT_ARG();
- if (get_u32(&p.index, *argv, 10)) {
- fprintf(stderr, "Illegal \"index\"\n");
- return -1;
- }
+ if (get_u32(&p.index, *argv, 10))
+ invarg("index", *argv);
} 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;
- }
+ if (buffer)
+ duparg("buffer/burst", *argv);
+ if (get_size_and_cell(&buffer, &Rcell_log, *argv) < 0)
+ invarg("buffer", *argv);
} 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;
- }
+ if (mtu)
+ duparg("mtu/minburst", *argv);
+ if (get_size_and_cell(&mtu, &Pcell_log, *argv) < 0)
+ invarg("mtu", *argv);
} 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;
- }
+ if (mpu)
+ duparg("mpu", *argv);
+ if (get_size(&mpu, *argv))
+ invarg("mpu", *argv);
} 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;
- }
+ if (rate64)
+ duparg("rate", *argv);
+ if (get_rate64(&rate64, *argv))
+ invarg("rate", *argv);
} 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;
- }
+ if (avrate)
+ duparg("avrate", *argv);
+ if (get_rate(&avrate, *argv))
+ invarg("avrate", *argv);
} 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;
+ if (prate64)
+ duparg("peakrate", *argv);
+ if (get_rate64(&prate64, *argv))
+ invarg("peakrate", *argv);
+ } else if (matches(*argv, "reclassify") == 0 ||
+ matches(*argv, "drop") == 0 ||
+ matches(*argv, "shot") == 0 ||
+ matches(*argv, "continue") == 0 ||
+ matches(*argv, "pass") == 0 ||
+ matches(*argv, "ok") == 0 ||
+ matches(*argv, "pipe") == 0 ||
+ matches(*argv, "goto") == 0) {
+ if (!parse_action_control(&argc, &argv, &p.action, false))
+ goto action_ctrl_ok;
+ return -1;
} 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();
+ if (!parse_action_control_slash(&argc, &argv, &p.action,
+ &presult, true))
+ goto action_ctrl_ok;
return -1;
+ } else if (matches(*argv, "overhead") == 0) {
+ NEXT_ARG();
+ if (get_u16(&overhead, *argv, 10))
+ invarg("overhead", *argv);
+ } else if (matches(*argv, "linklayer") == 0) {
+ NEXT_ARG();
+ if (get_linklayer(&linklayer, *argv))
+ invarg("linklayer", *argv);
+ } else if (strcmp(*argv, "help") == 0) {
+ usage();
} else {
break;
}
+ NEXT_ARG_FWD();
+action_ctrl_ok:
ok++;
- argc--; argv++;
}
if (!ok)
return -1;
- if (p.rate.rate && !buffer) {
- fprintf(stderr, "\"burst\" requires \"rate\".\n");
+ if (rate64 && avrate)
+ return -1;
+
+ /* Must at least do late binding, use TB or ewma policing */
+ if (!rate64 && !avrate && !p.index && !mtu) {
+ fprintf(stderr, "'rate' or 'avrate' or 'mtu' MUST be specified.\n");
return -1;
}
- if (p.peakrate.rate) {
- if (!p.rate.rate) {
- fprintf(stderr, "\"peakrate\" requires \"rate\".\n");
+
+ /* When the TB policer is used, burst is required */
+ if (rate64 && !buffer && !avrate) {
+ fprintf(stderr, "'burst' requires 'rate'.\n");
+ return -1;
+ }
+
+ if (prate64) {
+ if (!rate64) {
+ fprintf(stderr, "'peakrate' requires 'rate'.\n");
return -1;
}
if (!mtu) {
- fprintf(stderr, "\"mtu\" is required, if \"peakrate\" is requested.\n");
+ 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");
+ if (rate64) {
+ p.rate.rate = (rate64 >= (1ULL << 32)) ? ~0U : rate64;
+ p.rate.mpu = mpu;
+ p.rate.overhead = overhead;
+ if (tc_calc_rtable_64(&p.rate, rtab, Rcell_log, mtu,
+ linklayer, rate64) < 0) {
+ fprintf(stderr, "POLICE: 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.burst = tc_calc_xmittime(rate64, buffer);
}
p.mtu = mtu;
- if (p.peakrate.rate) {
- if ((Pcell_log = tc_calc_rtable(p.peakrate.rate, ptab, Pcell_log, mtu, mpu)) < 0) {
+ if (prate64) {
+ p.peakrate.rate = (prate64 >= (1ULL << 32)) ? ~0U : prate64;
+ p.peakrate.mpu = mpu;
+ p.peakrate.overhead = overhead;
+ if (tc_calc_rtable_64(&p.peakrate, ptab, Pcell_log, mtu,
+ linklayer, prate64) < 0) {
fprintf(stderr, "POLICE: failed to calculate peak rate table.\n");
return -1;
}
- p.peakrate.cell_log = Pcell_log;
- p.peakrate.mpu = mpu;
}
- tail = (struct rtattr*)(((void*)n)+NLMSG_ALIGN(n->nlmsg_len));
- addattr_l(n, MAX_MSG, tca_id, NULL, 0);
+ tail = addattr_nest(n, MAX_MSG, tca_id);
addattr_l(n, MAX_MSG, TCA_POLICE_TBF, &p, sizeof(p));
- if (p.rate.rate)
+ if (rate64) {
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 (rate64 >= (1ULL << 32))
+ addattr64(n, MAX_MSG, TCA_POLICE_RATE64, rate64);
+ }
+ if (prate64) {
+ addattr_l(n, MAX_MSG, TCA_POLICE_PEAKRATE, ptab, 1024);
+ if (prate64 >= (1ULL << 32))
+ addattr64(n, MAX_MSG, TCA_POLICE_PEAKRATE64, prate64);
+ }
if (avrate)
addattr32(n, MAX_MSG, TCA_POLICE_AVRATE, avrate);
if (presult)
addattr32(n, MAX_MSG, TCA_POLICE_RESULT, presult);
- tail->rta_len = (((void*)n)+NLMSG_ALIGN(n->nlmsg_len)) - (void*)tail;
+ addattr_nest_end(n, tail);
res = 0;
*argc_p = argc;
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);
+ return act_parse_police(NULL, argc_p, argv_p, tca_id, n);
}
-int
-print_police(struct action_util *a, FILE *f, struct rtattr *arg)
+static int print_police(struct action_util *a, FILE *f, struct rtattr *arg)
{
SPRINT_BUF(b1);
+ SPRINT_BUF(b2);
struct tc_police *p;
struct rtattr *tb[TCA_POLICE_MAX+1];
- unsigned buffer;
+ unsigned int buffer;
+ unsigned int linklayer;
+ __u64 rate64, prate64;
if (arg == NULL)
return 0;
- memset(tb, 0, sizeof(tb));
- parse_rtattr(tb, TCA_POLICE_MAX, RTA_DATA(arg), RTA_PAYLOAD(arg));
+ parse_rtattr_nested(tb, TCA_POLICE_MAX, arg);
if (tb[TCA_POLICE_TBF] == NULL) {
fprintf(f, "[NULL police tbf]");
#endif
p = RTA_DATA(tb[TCA_POLICE_TBF]);
+ rate64 = p->rate.rate;
+ if (tb[TCA_POLICE_RATE64] &&
+ RTA_PAYLOAD(tb[TCA_POLICE_RATE64]) >= sizeof(rate64))
+ rate64 = rta_getattr_u64(tb[TCA_POLICE_RATE64]);
+
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, "rate %s ", sprint_rate(rate64, b1));
+ buffer = tc_calc_xmitsize(rate64, p->burst);
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));
+
+ prate64 = p->peakrate.rate;
+ if (tb[TCA_POLICE_PEAKRATE64] &&
+ RTA_PAYLOAD(tb[TCA_POLICE_PEAKRATE64]) >= sizeof(prate64))
+ prate64 = rta_getattr_u64(tb[TCA_POLICE_PEAKRATE64]);
+
+ if (prate64)
+ fprintf(f, "peakrate %s ", sprint_rate(prate64, 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)));
+ fprintf(f, "avrate %s ",
+ sprint_rate(rta_getattr_u32(tb[TCA_POLICE_AVRATE]),
+ b1));
+
+ print_action_control(f, "action ", p->action, "");
+
if (tb[TCA_POLICE_RESULT]) {
- fprintf(f, "/%s ", police_action_n2a(*(int*)RTA_DATA(tb[TCA_POLICE_RESULT]), b1, sizeof(b1)));
+ __u32 action = rta_getattr_u32(tb[TCA_POLICE_RESULT]);
+
+ print_action_control(f, "/", action, " ");
} else
fprintf(f, " ");
- fprintf(f, "\nref %d bind %d\n",p->refcnt, p->bindcnt);
+
+ fprintf(f, "overhead %ub ", p->rate.overhead);
+ linklayer = (p->rate.linklayer & TC_LINKLAYER_MASK);
+ if (linklayer > TC_LINKLAYER_ETHERNET || show_details)
+ fprintf(f, "linklayer %s ", sprint_linklayer(linklayer, b2));
+ fprintf(f, "\n\tref %d bind %d", p->refcnt, p->bindcnt);
+ if (show_stats) {
+ if (tb[TCA_POLICE_TM]) {
+ struct tcf_t *tm = RTA_DATA(tb[TCA_POLICE_TM]);
+
+ print_tm(f, tm);
+ }
+ }
+ fprintf(f, "\n");
+
return 0;
}
-int
-tc_print_police(FILE *f, struct rtattr *arg) {
- return print_police(&police_action_util,f,arg);
+int tc_print_police(FILE *f, struct rtattr *arg)
+{
+ return print_police(&police_action_util, f, arg);
}
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