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Put dummynet-related code in a separate file.

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To this purpose, add prototypes for global functions in ipfw2.h
and move there also the list of tokens used in various places in the code.
This commit is contained in:
Luigi Rizzo 2009-01-27 11:06:59 +00:00
parent d36bf6e792
commit 4e9c8ae7b5
3 changed files with 853 additions and 785 deletions
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717
sbin/ipfw/dummynet.c Normal file
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@ -0,0 +1,717 @@
/*
* Copyright (c) 2002-2003 Luigi Rizzo
* Copyright (c) 1996 Alex Nash, Paul Traina, Poul-Henning Kamp
* Copyright (c) 1994 Ugen J.S.Antsilevich
*
* Idea and grammar partially left from:
* Copyright (c) 1993 Daniel Boulet
*
* Redistribution and use in source forms, with and without modification,
* are permitted provided that this entire comment appears intact.
*
* Redistribution in binary form may occur without any restrictions.
* Obviously, it would be nice if you gave credit where credit is due
* but requiring it would be too onerous.
*
* This software is provided ``AS IS'' without any warranties of any kind.
*
* NEW command line interface for IP firewall facility
*
* $FreeBSD$
*
* dummynet support
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include "ipfw2.h"
#include <ctype.h>
#include <err.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_fw.h>
#include <netinet/ip_dummynet.h>
#include <arpa/inet.h>
static struct _s_x dummynet_params[] = {
{ "plr", TOK_PLR },
{ "noerror", TOK_NOERROR },
{ "buckets", TOK_BUCKETS },
{ "dst-ip", TOK_DSTIP },
{ "src-ip", TOK_SRCIP },
{ "dst-port", TOK_DSTPORT },
{ "src-port", TOK_SRCPORT },
{ "proto", TOK_PROTO },
{ "weight", TOK_WEIGHT },
{ "all", TOK_ALL },
{ "mask", TOK_MASK },
{ "droptail", TOK_DROPTAIL },
{ "red", TOK_RED },
{ "gred", TOK_GRED },
{ "bw", TOK_BW },
{ "bandwidth", TOK_BW },
{ "delay", TOK_DELAY },
{ "pipe", TOK_PIPE },
{ "queue", TOK_QUEUE },
{ "flow-id", TOK_FLOWID},
{ "dst-ipv6", TOK_DSTIP6},
{ "dst-ip6", TOK_DSTIP6},
{ "src-ipv6", TOK_SRCIP6},
{ "src-ip6", TOK_SRCIP6},
{ "dummynet-params", TOK_NULL },
{ NULL, 0 } /* terminator */
};
static int
sort_q(const void *pa, const void *pb)
{
int rev = (co.do_sort < 0);
int field = rev ? -co.do_sort : co.do_sort;
long long res = 0;
const struct dn_flow_queue *a = pa;
const struct dn_flow_queue *b = pb;
switch (field) {
case 1: /* pkts */
res = a->len - b->len;
break;
case 2: /* bytes */
res = a->len_bytes - b->len_bytes;
break;
case 3: /* tot pkts */
res = a->tot_pkts - b->tot_pkts;
break;
case 4: /* tot bytes */
res = a->tot_bytes - b->tot_bytes;
break;
}
if (res < 0)
res = -1;
if (res > 0)
res = 1;
return (int)(rev ? res : -res);
}
static void
list_queues(struct dn_flow_set *fs, struct dn_flow_queue *q)
{
int l;
int index_printed, indexes = 0;
char buff[255];
struct protoent *pe;
if (fs->rq_elements == 0)
return;
if (co.do_sort != 0)
heapsort(q, fs->rq_elements, sizeof *q, sort_q);
/* Print IPv4 flows */
index_printed = 0;
for (l = 0; l < fs->rq_elements; l++) {
struct in_addr ina;
/* XXX: Should check for IPv4 flows */
if (IS_IP6_FLOW_ID(&(q[l].id)))
continue;
if (!index_printed) {
index_printed = 1;
if (indexes > 0) /* currently a no-op */
printf("\n");
indexes++;
printf(" "
"mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n",
fs->flow_mask.proto,
fs->flow_mask.src_ip, fs->flow_mask.src_port,
fs->flow_mask.dst_ip, fs->flow_mask.dst_port);
printf("BKT Prot ___Source IP/port____ "
"____Dest. IP/port____ "
"Tot_pkt/bytes Pkt/Byte Drp\n");
}
printf("%3d ", q[l].hash_slot);
pe = getprotobynumber(q[l].id.proto);
if (pe)
printf("%-4s ", pe->p_name);
else
printf("%4u ", q[l].id.proto);
ina.s_addr = htonl(q[l].id.src_ip);
printf("%15s/%-5d ",
inet_ntoa(ina), q[l].id.src_port);
ina.s_addr = htonl(q[l].id.dst_ip);
printf("%15s/%-5d ",
inet_ntoa(ina), q[l].id.dst_port);
printf("%4qu %8qu %2u %4u %3u\n",
q[l].tot_pkts, q[l].tot_bytes,
q[l].len, q[l].len_bytes, q[l].drops);
if (co.verbose)
printf(" S %20qd F %20qd\n",
q[l].S, q[l].F);
}
/* Print IPv6 flows */
index_printed = 0;
for (l = 0; l < fs->rq_elements; l++) {
if (!IS_IP6_FLOW_ID(&(q[l].id)))
continue;
if (!index_printed) {
index_printed = 1;
if (indexes > 0)
printf("\n");
indexes++;
printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ",
fs->flow_mask.proto, fs->flow_mask.flow_id6);
inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6),
buff, sizeof(buff));
printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port);
inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6),
buff, sizeof(buff) );
printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port);
printf("BKT ___Prot___ _flow-id_ "
"______________Source IPv6/port_______________ "
"_______________Dest. IPv6/port_______________ "
"Tot_pkt/bytes Pkt/Byte Drp\n");
}
printf("%3d ", q[l].hash_slot);
pe = getprotobynumber(q[l].id.proto);
if (pe != NULL)
printf("%9s ", pe->p_name);
else
printf("%9u ", q[l].id.proto);
printf("%7d %39s/%-5d ", q[l].id.flow_id6,
inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)),
q[l].id.src_port);
printf(" %39s/%-5d ",
inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)),
q[l].id.dst_port);
printf(" %4qu %8qu %2u %4u %3u\n",
q[l].tot_pkts, q[l].tot_bytes,
q[l].len, q[l].len_bytes, q[l].drops);
if (co.verbose)
printf(" S %20qd F %20qd\n", q[l].S, q[l].F);
}
}
static void
print_flowset_parms(struct dn_flow_set *fs, char *prefix)
{
int l;
char qs[30];
char plr[30];
char red[90]; /* Display RED parameters */
l = fs->qsize;
if (fs->flags_fs & DN_QSIZE_IS_BYTES) {
if (l >= 8192)
sprintf(qs, "%d KB", l / 1024);
else
sprintf(qs, "%d B", l);
} else
sprintf(qs, "%3d sl.", l);
if (fs->plr)
sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff));
else
plr[0] = '\0';
if (fs->flags_fs & DN_IS_RED) /* RED parameters */
sprintf(red,
"\n\t %cRED w_q %f min_th %d max_th %d max_p %f",
(fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ',
1.0 * fs->w_q / (double)(1 << SCALE_RED),
SCALE_VAL(fs->min_th),
SCALE_VAL(fs->max_th),
1.0 * fs->max_p / (double)(1 << SCALE_RED));
else
sprintf(red, "droptail");
printf("%s %s%s %d queues (%d buckets) %s\n",
prefix, qs, plr, fs->rq_elements, fs->rq_size, red);
}
void
ipfw_list_pipes(void *data, uint nbytes, int ac, char *av[])
{
int rulenum;
void *next = data;
struct dn_pipe *p = (struct dn_pipe *) data;
struct dn_flow_set *fs;
struct dn_flow_queue *q;
int l;
if (ac > 0)
rulenum = strtoul(*av++, NULL, 10);
else
rulenum = 0;
for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) {
double b = p->bandwidth;
char buf[30];
char prefix[80];
if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE)
break; /* done with pipes, now queues */
/*
* compute length, as pipe have variable size
*/
l = sizeof(*p) + p->fs.rq_elements * sizeof(*q);
next = (char *)p + l;
nbytes -= l;
if ((rulenum != 0 && rulenum != p->pipe_nr) || co.do_pipe == 2)
continue;
/*
* Print rate (or clocking interface)
*/
if (p->if_name[0] != '\0')
sprintf(buf, "%s", p->if_name);
else if (b == 0)
sprintf(buf, "unlimited");
else if (b >= 1000000)
sprintf(buf, "%7.3f Mbit/s", b/1000000);
else if (b >= 1000)
sprintf(buf, "%7.3f Kbit/s", b/1000);
else
sprintf(buf, "%7.3f bit/s ", b);
sprintf(prefix, "%05d: %s %4d ms ",
p->pipe_nr, buf, p->delay);
print_flowset_parms(&(p->fs), prefix);
if (co.verbose)
printf(" V %20qd\n", p->V >> MY_M);
q = (struct dn_flow_queue *)(p+1);
list_queues(&(p->fs), q);
}
for (fs = next; nbytes >= sizeof *fs; fs = next) {
char prefix[80];
if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE)
break;
l = sizeof(*fs) + fs->rq_elements * sizeof(*q);
next = (char *)fs + l;
nbytes -= l;
if (rulenum != 0 && ((rulenum != fs->fs_nr && co.do_pipe == 2) ||
(rulenum != fs->parent_nr && co.do_pipe == 1))) {
continue;
}
q = (struct dn_flow_queue *)(fs+1);
sprintf(prefix, "q%05d: weight %d pipe %d ",
fs->fs_nr, fs->weight, fs->parent_nr);
print_flowset_parms(fs, prefix);
list_queues(fs, q);
}
}
/*
* Delete pipe or queue i
*/
int
ipfw_delete_pipe(int pipe_or_queue, int n)
{
struct dn_pipe p;
int i;
memset(&p, 0, sizeof p);
if (pipe_or_queue == 1)
p.pipe_nr = i; /* pipe */
else
p.fs.fs_nr = i; /* queue */
i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p);
if (i) {
i = 1;
warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", i);
}
return i;
}
void
ipfw_config_pipe(int ac, char **av)
{
struct dn_pipe p;
int i;
char *end;
void *par = NULL;
memset(&p, 0, sizeof p);
av++; ac--;
/* Pipe number */
if (ac && isdigit(**av)) {
i = atoi(*av); av++; ac--;
if (co.do_pipe == 1)
p.pipe_nr = i;
else
p.fs.fs_nr = i;
}
while (ac > 0) {
double d;
int tok = match_token(dummynet_params, *av);
ac--; av++;
switch(tok) {
case TOK_NOERROR:
p.fs.flags_fs |= DN_NOERROR;
break;
case TOK_PLR:
NEED1("plr needs argument 0..1\n");
d = strtod(av[0], NULL);
if (d > 1)
d = 1;
else if (d < 0)
d = 0;
p.fs.plr = (int)(d*0x7fffffff);
ac--; av++;
break;
case TOK_QUEUE:
NEED1("queue needs queue size\n");
end = NULL;
p.fs.qsize = strtoul(av[0], &end, 0);
if (*end == 'K' || *end == 'k') {
p.fs.flags_fs |= DN_QSIZE_IS_BYTES;
p.fs.qsize *= 1024;
} else if (*end == 'B' ||
_substrcmp2(end, "by", "bytes") == 0) {
p.fs.flags_fs |= DN_QSIZE_IS_BYTES;
}
ac--; av++;
break;
case TOK_BUCKETS:
NEED1("buckets needs argument\n");
p.fs.rq_size = strtoul(av[0], NULL, 0);
ac--; av++;
break;
case TOK_MASK:
NEED1("mask needs mask specifier\n");
/*
* per-flow queue, mask is dst_ip, dst_port,
* src_ip, src_port, proto measured in bits
*/
par = NULL;
bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask));
end = NULL;
while (ac >= 1) {
uint32_t *p32 = NULL;
uint16_t *p16 = NULL;
uint32_t *p20 = NULL;
struct in6_addr *pa6 = NULL;
uint32_t a;
tok = match_token(dummynet_params, *av);
ac--; av++;
switch(tok) {
case TOK_ALL:
/*
* special case, all bits significant
*/
p.fs.flow_mask.dst_ip = ~0;
p.fs.flow_mask.src_ip = ~0;
p.fs.flow_mask.dst_port = ~0;
p.fs.flow_mask.src_port = ~0;
p.fs.flow_mask.proto = ~0;
n2mask(&(p.fs.flow_mask.dst_ip6), 128);
n2mask(&(p.fs.flow_mask.src_ip6), 128);
p.fs.flow_mask.flow_id6 = ~0;
p.fs.flags_fs |= DN_HAVE_FLOW_MASK;
goto end_mask;
case TOK_DSTIP:
p32 = &p.fs.flow_mask.dst_ip;
break;
case TOK_SRCIP:
p32 = &p.fs.flow_mask.src_ip;
break;
case TOK_DSTIP6:
pa6 = &(p.fs.flow_mask.dst_ip6);
break;
case TOK_SRCIP6:
pa6 = &(p.fs.flow_mask.src_ip6);
break;
case TOK_FLOWID:
p20 = &p.fs.flow_mask.flow_id6;
break;
case TOK_DSTPORT:
p16 = &p.fs.flow_mask.dst_port;
break;
case TOK_SRCPORT:
p16 = &p.fs.flow_mask.src_port;
break;
case TOK_PROTO:
break;
default:
ac++; av--; /* backtrack */
goto end_mask;
}
if (ac < 1)
errx(EX_USAGE, "mask: value missing");
if (*av[0] == '/') {
a = strtoul(av[0]+1, &end, 0);
if (pa6 == NULL)
a = (a == 32) ? ~0 : (1 << a) - 1;
} else
a = strtoul(av[0], &end, 0);
if (p32 != NULL)
*p32 = a;
else if (p16 != NULL) {
if (a > 0xFFFF)
errx(EX_DATAERR,
"port mask must be 16 bit");
*p16 = (uint16_t)a;
} else if (p20 != NULL) {
if (a > 0xfffff)
errx(EX_DATAERR,
"flow_id mask must be 20 bit");
*p20 = (uint32_t)a;
} else if (pa6 != NULL) {
if (a > 128)
errx(EX_DATAERR,
"in6addr invalid mask len");
else
n2mask(pa6, a);
} else {
if (a > 0xFF)
errx(EX_DATAERR,
"proto mask must be 8 bit");
p.fs.flow_mask.proto = (uint8_t)a;
}
if (a != 0)
p.fs.flags_fs |= DN_HAVE_FLOW_MASK;
ac--; av++;
} /* end while, config masks */
end_mask:
break;
case TOK_RED:
case TOK_GRED:
NEED1("red/gred needs w_q/min_th/max_th/max_p\n");
p.fs.flags_fs |= DN_IS_RED;
if (tok == TOK_GRED)
p.fs.flags_fs |= DN_IS_GENTLE_RED;
/*
* the format for parameters is w_q/min_th/max_th/max_p
*/
if ((end = strsep(&av[0], "/"))) {
double w_q = strtod(end, NULL);
if (w_q > 1 || w_q <= 0)
errx(EX_DATAERR, "0 < w_q <= 1");
p.fs.w_q = (int) (w_q * (1 << SCALE_RED));
}
if ((end = strsep(&av[0], "/"))) {
p.fs.min_th = strtoul(end, &end, 0);
if (*end == 'K' || *end == 'k')
p.fs.min_th *= 1024;
}
if ((end = strsep(&av[0], "/"))) {
p.fs.max_th = strtoul(end, &end, 0);
if (*end == 'K' || *end == 'k')
p.fs.max_th *= 1024;
}
if ((end = strsep(&av[0], "/"))) {
double max_p = strtod(end, NULL);
if (max_p > 1 || max_p <= 0)
errx(EX_DATAERR, "0 < max_p <= 1");
p.fs.max_p = (int)(max_p * (1 << SCALE_RED));
}
ac--; av++;
break;
case TOK_DROPTAIL:
p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED);
break;
case TOK_BW:
NEED1("bw needs bandwidth or interface\n");
if (co.do_pipe != 1)
errx(EX_DATAERR, "bandwidth only valid for pipes");
/*
* set clocking interface or bandwidth value
*/
if (av[0][0] >= 'a' && av[0][0] <= 'z') {
int l = sizeof(p.if_name)-1;
/* interface name */
strncpy(p.if_name, av[0], l);
p.if_name[l] = '\0';
p.bandwidth = 0;
} else {
p.if_name[0] = '\0';
p.bandwidth = strtoul(av[0], &end, 0);
if (*end == 'K' || *end == 'k') {
end++;
p.bandwidth *= 1000;
} else if (*end == 'M') {
end++;
p.bandwidth *= 1000000;
}
if ((*end == 'B' &&
_substrcmp2(end, "Bi", "Bit/s") != 0) ||
_substrcmp2(end, "by", "bytes") == 0)
p.bandwidth *= 8;
if (p.bandwidth < 0)
errx(EX_DATAERR, "bandwidth too large");
}
ac--; av++;
break;
case TOK_DELAY:
if (co.do_pipe != 1)
errx(EX_DATAERR, "delay only valid for pipes");
NEED1("delay needs argument 0..10000ms\n");
p.delay = strtoul(av[0], NULL, 0);
ac--; av++;
break;
case TOK_WEIGHT:
if (co.do_pipe == 1)
errx(EX_DATAERR,"weight only valid for queues");
NEED1("weight needs argument 0..100\n");
p.fs.weight = strtoul(av[0], &end, 0);
ac--; av++;
break;
case TOK_PIPE:
if (co.do_pipe == 1)
errx(EX_DATAERR,"pipe only valid for queues");
NEED1("pipe needs pipe_number\n");
p.fs.parent_nr = strtoul(av[0], &end, 0);
ac--; av++;
break;
default:
errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]);
}
}
if (co.do_pipe == 1) {
if (p.pipe_nr == 0)
errx(EX_DATAERR, "pipe_nr must be > 0");
if (p.delay > 10000)
errx(EX_DATAERR, "delay must be < 10000");
} else { /* co.do_pipe == 2, queue */
if (p.fs.parent_nr == 0)
errx(EX_DATAERR, "pipe must be > 0");
if (p.fs.weight >100)
errx(EX_DATAERR, "weight must be <= 100");
}
if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) {
size_t len;
long limit;
len = sizeof(limit);
if (sysctlbyname("net.inet.ip.dummynet.pipe_byte_limit",
&limit, &len, NULL, 0) == -1)
limit = 1024*1024;
if (p.fs.qsize > limit)
errx(EX_DATAERR, "queue size must be < %ldB", limit);
} else {
size_t len;
long limit;
len = sizeof(limit);
if (sysctlbyname("net.inet.ip.dummynet.pipe_slot_limit",
&limit, &len, NULL, 0) == -1)
limit = 100;
if (p.fs.qsize > limit)
errx(EX_DATAERR, "2 <= queue size <= %ld", limit);
}
if (p.fs.flags_fs & DN_IS_RED) {
size_t len;
int lookup_depth, avg_pkt_size;
double s, idle, weight, w_q;
struct clockinfo ck;
int t;
if (p.fs.min_th >= p.fs.max_th)
errx(EX_DATAERR, "min_th %d must be < than max_th %d",
p.fs.min_th, p.fs.max_th);
if (p.fs.max_th == 0)
errx(EX_DATAERR, "max_th must be > 0");
len = sizeof(int);
if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth",
&lookup_depth, &len, NULL, 0) == -1)
errx(1, "sysctlbyname(\"%s\")",
"net.inet.ip.dummynet.red_lookup_depth");
if (lookup_depth == 0)
errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth"
" must be greater than zero");
len = sizeof(int);
if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size",
&avg_pkt_size, &len, NULL, 0) == -1)
errx(1, "sysctlbyname(\"%s\")",
"net.inet.ip.dummynet.red_avg_pkt_size");
if (avg_pkt_size == 0)
errx(EX_DATAERR,
"net.inet.ip.dummynet.red_avg_pkt_size must"
" be greater than zero");
len = sizeof(struct clockinfo);
if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1)
errx(1, "sysctlbyname(\"%s\")", "kern.clockrate");
/*
* Ticks needed for sending a medium-sized packet.
* Unfortunately, when we are configuring a WF2Q+ queue, we
* do not have bandwidth information, because that is stored
* in the parent pipe, and also we have multiple queues
* competing for it. So we set s=0, which is not very
* correct. But on the other hand, why do we want RED with
* WF2Q+ ?
*/
if (p.bandwidth==0) /* this is a WF2Q+ queue */
s = 0;
else
s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth;
/*
* max idle time (in ticks) before avg queue size becomes 0.
* NOTA: (3/w_q) is approx the value x so that
* (1-w_q)^x < 10^-3.
*/
w_q = ((double)p.fs.w_q) / (1 << SCALE_RED);
idle = s * 3. / w_q;
p.fs.lookup_step = (int)idle / lookup_depth;
if (!p.fs.lookup_step)
p.fs.lookup_step = 1;
weight = 1 - w_q;
for (t = p.fs.lookup_step; t > 1; --t)
weight *= 1 - w_q;
p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED));
}
i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p);
if (i)
err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE");
}

796
sbin/ipfw/ipfw2.c
View File

@ -54,7 +54,6 @@
#include <netinet/ip_icmp.h>
#include <netinet/icmp6.h>
#include <netinet/ip_fw.h>
#include <netinet/ip_dummynet.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <alias.h>
@ -192,150 +191,8 @@ static struct _s_x ether_types[] = {
{ NULL, 0 }
};
enum tokens {
TOK_NULL=0,
TOK_OR,
TOK_NOT,
TOK_STARTBRACE,
TOK_ENDBRACE,
TOK_ACCEPT,
TOK_COUNT,
TOK_PIPE,
TOK_QUEUE,
TOK_DIVERT,
TOK_TEE,
TOK_NETGRAPH,
TOK_NGTEE,
TOK_FORWARD,
TOK_SKIPTO,
TOK_DENY,
TOK_REJECT,
TOK_RESET,
TOK_UNREACH,
TOK_CHECKSTATE,
TOK_NAT,
TOK_ALTQ,
TOK_LOG,
TOK_TAG,
TOK_UNTAG,
TOK_TAGGED,
TOK_UID,
TOK_GID,
TOK_JAIL,
TOK_IN,
TOK_LIMIT,
TOK_KEEPSTATE,
TOK_LAYER2,
TOK_OUT,
TOK_DIVERTED,
TOK_DIVERTEDLOOPBACK,
TOK_DIVERTEDOUTPUT,
TOK_XMIT,
TOK_RECV,
TOK_VIA,
TOK_FRAG,
TOK_IPOPTS,
TOK_IPLEN,
TOK_IPID,
TOK_IPPRECEDENCE,
TOK_IPTOS,
TOK_IPTTL,
TOK_IPVER,
TOK_ESTAB,
TOK_SETUP,
TOK_TCPDATALEN,
TOK_TCPFLAGS,
TOK_TCPOPTS,
TOK_TCPSEQ,
TOK_TCPACK,
TOK_TCPWIN,
TOK_ICMPTYPES,
TOK_MAC,
TOK_MACTYPE,
TOK_VERREVPATH,
TOK_VERSRCREACH,
TOK_ANTISPOOF,
TOK_IPSEC,
TOK_COMMENT,
TOK_PLR,
TOK_NOERROR,
TOK_BUCKETS,
TOK_DSTIP,
TOK_SRCIP,
TOK_DSTPORT,
TOK_SRCPORT,
TOK_ALL,
TOK_MASK,
TOK_BW,
TOK_DELAY,
TOK_RED,
TOK_GRED,
TOK_DROPTAIL,
TOK_PROTO,
TOK_WEIGHT,
TOK_IP,
TOK_IF,
TOK_ALOG,
TOK_DENY_INC,
TOK_SAME_PORTS,
TOK_UNREG_ONLY,
TOK_RESET_ADDR,
TOK_ALIAS_REV,
TOK_PROXY_ONLY,
TOK_REDIR_ADDR,
TOK_REDIR_PORT,
TOK_REDIR_PROTO,
TOK_IPV6,
TOK_FLOWID,
TOK_ICMP6TYPES,
TOK_EXT6HDR,
TOK_DSTIP6,
TOK_SRCIP6,
TOK_IPV4,
TOK_UNREACH6,
TOK_RESET6,
TOK_FIB,
TOK_SETFIB,
};
struct _s_x dummynet_params[] = {
{ "plr", TOK_PLR },
{ "noerror", TOK_NOERROR },
{ "buckets", TOK_BUCKETS },
{ "dst-ip", TOK_DSTIP },
{ "src-ip", TOK_SRCIP },
{ "dst-port", TOK_DSTPORT },
{ "src-port", TOK_SRCPORT },
{ "proto", TOK_PROTO },
{ "weight", TOK_WEIGHT },
{ "all", TOK_ALL },
{ "mask", TOK_MASK },
{ "droptail", TOK_DROPTAIL },
{ "red", TOK_RED },
{ "gred", TOK_GRED },
{ "bw", TOK_BW },
{ "bandwidth", TOK_BW },
{ "delay", TOK_DELAY },
{ "pipe", TOK_PIPE },
{ "queue", TOK_QUEUE },
{ "flow-id", TOK_FLOWID},
{ "dst-ipv6", TOK_DSTIP6},
{ "dst-ip6", TOK_DSTIP6},
{ "src-ipv6", TOK_SRCIP6},
{ "src-ip6", TOK_SRCIP6},
{ "dummynet-params", TOK_NULL },
{ NULL, 0 } /* terminator */
};
struct _s_x nat_params[] = {
static struct _s_x nat_params[] = {
{ "ip", TOK_IP },
{ "if", TOK_IF },
{ "log", TOK_ALOG },
@ -351,7 +208,7 @@ struct _s_x nat_params[] = {
{ NULL, 0 } /* terminator */
};
struct _s_x rule_actions[] = {
static struct _s_x rule_actions[] = {
{ "accept", TOK_ACCEPT },
{ "pass", TOK_ACCEPT },
{ "allow", TOK_ACCEPT },
@ -380,7 +237,7 @@ struct _s_x rule_actions[] = {
{ NULL, 0 } /* terminator */
};
struct _s_x rule_action_params[] = {
static struct _s_x rule_action_params[] = {
{ "altq", TOK_ALTQ },
{ "log", TOK_LOG },
{ "tag", TOK_TAG },
@ -388,7 +245,7 @@ struct _s_x rule_action_params[] = {
{ NULL, 0 } /* terminator */
};
struct _s_x rule_options[] = {
static struct _s_x rule_options[] = {
{ "tagged", TOK_TAGGED },
{ "uid", TOK_UID },
{ "gid", TOK_GID },
@ -498,7 +355,7 @@ safe_realloc(void *ptr, size_t size)
/*
* conditionally runs the command.
*/
static int
int
do_cmd(int optname, void *optval, uintptr_t optlen)
{
static int s = -1; /* the socket */
@ -528,7 +385,7 @@ do_cmd(int optname, void *optval, uintptr_t optlen)
* match_token takes a table and a string, returns the value associated
* with the string (-1 in case of failure).
*/
static int
int
match_token(struct _s_x *table, char *string)
{
struct _s_x *pt;
@ -590,7 +447,7 @@ _substrcmp(const char *str1, const char* str2)
* This function will be removed in the future through the usual
* deprecation process.
*/
static int
int
_substrcmp2(const char *str1, const char* str2, const char* str3)
{
@ -631,7 +488,7 @@ print_port(int proto, uint16_t port)
}
}
struct _s_x _port_name[] = {
static struct _s_x _port_name[] = {
{"dst-port", O_IP_DSTPORT},
{"src-port", O_IP_SRCPORT},
{"ipid", O_IPID},
@ -2088,254 +1945,6 @@ show_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth)
printf("\n");
}
static int
sort_q(const void *pa, const void *pb)
{
int rev = (co.do_sort < 0);
int field = rev ? -co.do_sort : co.do_sort;
long long res = 0;
const struct dn_flow_queue *a = pa;
const struct dn_flow_queue *b = pb;
switch (field) {
case 1: /* pkts */
res = a->len - b->len;
break;
case 2: /* bytes */
res = a->len_bytes - b->len_bytes;
break;
case 3: /* tot pkts */
res = a->tot_pkts - b->tot_pkts;
break;
case 4: /* tot bytes */
res = a->tot_bytes - b->tot_bytes;
break;
}
if (res < 0)
res = -1;
if (res > 0)
res = 1;
return (int)(rev ? res : -res);
}
static void
list_queues(struct dn_flow_set *fs, struct dn_flow_queue *q)
{
int l;
int index_printed, indexes = 0;
char buff[255];
struct protoent *pe;
if (fs->rq_elements == 0)
return;
if (co.do_sort != 0)
heapsort(q, fs->rq_elements, sizeof *q, sort_q);
/* Print IPv4 flows */
index_printed = 0;
for (l = 0; l < fs->rq_elements; l++) {
struct in_addr ina;
/* XXX: Should check for IPv4 flows */
if (IS_IP6_FLOW_ID(&(q[l].id)))
continue;
if (!index_printed) {
index_printed = 1;
if (indexes > 0) /* currently a no-op */
printf("\n");
indexes++;
printf(" "
"mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n",
fs->flow_mask.proto,
fs->flow_mask.src_ip, fs->flow_mask.src_port,
fs->flow_mask.dst_ip, fs->flow_mask.dst_port);
printf("BKT Prot ___Source IP/port____ "
"____Dest. IP/port____ "
"Tot_pkt/bytes Pkt/Byte Drp\n");
}
printf("%3d ", q[l].hash_slot);
pe = getprotobynumber(q[l].id.proto);
if (pe)
printf("%-4s ", pe->p_name);
else
printf("%4u ", q[l].id.proto);
ina.s_addr = htonl(q[l].id.src_ip);
printf("%15s/%-5d ",
inet_ntoa(ina), q[l].id.src_port);
ina.s_addr = htonl(q[l].id.dst_ip);
printf("%15s/%-5d ",
inet_ntoa(ina), q[l].id.dst_port);
printf("%4qu %8qu %2u %4u %3u\n",
q[l].tot_pkts, q[l].tot_bytes,
q[l].len, q[l].len_bytes, q[l].drops);
if (co.verbose)
printf(" S %20qd F %20qd\n",
q[l].S, q[l].F);
}
/* Print IPv6 flows */
index_printed = 0;
for (l = 0; l < fs->rq_elements; l++) {
if (!IS_IP6_FLOW_ID(&(q[l].id)))
continue;
if (!index_printed) {
index_printed = 1;
if (indexes > 0)
printf("\n");
indexes++;
printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ",
fs->flow_mask.proto, fs->flow_mask.flow_id6);
inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6),
buff, sizeof(buff));
printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port);
inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6),
buff, sizeof(buff) );
printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port);
printf("BKT ___Prot___ _flow-id_ "
"______________Source IPv6/port_______________ "
"_______________Dest. IPv6/port_______________ "
"Tot_pkt/bytes Pkt/Byte Drp\n");
}
printf("%3d ", q[l].hash_slot);
pe = getprotobynumber(q[l].id.proto);
if (pe != NULL)
printf("%9s ", pe->p_name);
else
printf("%9u ", q[l].id.proto);
printf("%7d %39s/%-5d ", q[l].id.flow_id6,
inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)),
q[l].id.src_port);
printf(" %39s/%-5d ",
inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)),
q[l].id.dst_port);
printf(" %4qu %8qu %2u %4u %3u\n",
q[l].tot_pkts, q[l].tot_bytes,
q[l].len, q[l].len_bytes, q[l].drops);
if (co.verbose)
printf(" S %20qd F %20qd\n", q[l].S, q[l].F);
}
}
static void
print_flowset_parms(struct dn_flow_set *fs, char *prefix)
{
int l;
char qs[30];
char plr[30];
char red[90]; /* Display RED parameters */
l = fs->qsize;
if (fs->flags_fs & DN_QSIZE_IS_BYTES) {
if (l >= 8192)
sprintf(qs, "%d KB", l / 1024);
else
sprintf(qs, "%d B", l);
} else
sprintf(qs, "%3d sl.", l);
if (fs->plr)
sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff));
else
plr[0] = '\0';
if (fs->flags_fs & DN_IS_RED) /* RED parameters */
sprintf(red,
"\n\t %cRED w_q %f min_th %d max_th %d max_p %f",
(fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ',
1.0 * fs->w_q / (double)(1 << SCALE_RED),
SCALE_VAL(fs->min_th),
SCALE_VAL(fs->max_th),
1.0 * fs->max_p / (double)(1 << SCALE_RED));
else
sprintf(red, "droptail");
printf("%s %s%s %d queues (%d buckets) %s\n",
prefix, qs, plr, fs->rq_elements, fs->rq_size, red);
}
static void
list_pipes(void *data, uint nbytes, int ac, char *av[])
{
int rulenum;
void *next = data;
struct dn_pipe *p = (struct dn_pipe *) data;
struct dn_flow_set *fs;
struct dn_flow_queue *q;
int l;
if (ac > 0)
rulenum = strtoul(*av++, NULL, 10);
else
rulenum = 0;
for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) {
double b = p->bandwidth;
char buf[30];
char prefix[80];
if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE)
break; /* done with pipes, now queues */
/*
* compute length, as pipe have variable size
*/
l = sizeof(*p) + p->fs.rq_elements * sizeof(*q);
next = (char *)p + l;
nbytes -= l;
if ((rulenum != 0 && rulenum != p->pipe_nr) || co.do_pipe == 2)
continue;
/*
* Print rate (or clocking interface)
*/
if (p->if_name[0] != '\0')
sprintf(buf, "%s", p->if_name);
else if (b == 0)
sprintf(buf, "unlimited");
else if (b >= 1000000)
sprintf(buf, "%7.3f Mbit/s", b/1000000);
else if (b >= 1000)
sprintf(buf, "%7.3f Kbit/s", b/1000);
else
sprintf(buf, "%7.3f bit/s ", b);
sprintf(prefix, "%05d: %s %4d ms ",
p->pipe_nr, buf, p->delay);
print_flowset_parms(&(p->fs), prefix);
if (co.verbose)
printf(" V %20qd\n", p->V >> MY_M);
q = (struct dn_flow_queue *)(p+1);
list_queues(&(p->fs), q);
}
for (fs = next; nbytes >= sizeof *fs; fs = next) {
char prefix[80];
if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE)
break;
l = sizeof(*fs) + fs->rq_elements * sizeof(*q);
next = (char *)fs + l;
nbytes -= l;
if (rulenum != 0 && ((rulenum != fs->fs_nr && co.do_pipe == 2) ||
(rulenum != fs->parent_nr && co.do_pipe == 1))) {
continue;
}
q = (struct dn_flow_queue *)(fs+1);
sprintf(prefix, "q%05d: weight %d pipe %d ",
fs->fs_nr, fs->weight, fs->parent_nr);
print_flowset_parms(fs, prefix);
list_queues(fs, q);
}
}
/*
* This one handles all set-related commands
* ipfw set { show | enable | disable }
@ -2517,7 +2126,7 @@ ipfw_list(int ac, char *av[], int show_counters)
}
if (co.do_pipe) {
list_pipes(data, nbytes, ac, av);
ipfw_list_pipes(data, nbytes, ac, av);
goto done;
}
@ -2897,7 +2506,7 @@ lookup_host6 (char *host, struct in6_addr *ip6addr)
/* n2mask sets n bits of the mask */
static void
void
n2mask(struct in6_addr *mask, int n)
{
static int minimask[9] =
@ -3145,12 +2754,10 @@ void
ipfw_delete(int ac, char *av[])
{
uint32_t rulenum;
struct dn_pipe p;
int i;
int exitval = EX_OK;
int do_set = 0;
memset(&p, 0, sizeof p);
av++; ac--;
NEED1("missing rule specification");
@ -3174,16 +2781,7 @@ ipfw_delete(int ac, char *av[])
warn("rule %u not available", i);
}
} else if (co.do_pipe) {
if (co.do_pipe == 1)
p.pipe_nr = i;
else
p.fs.fs_nr = i;
i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p);
if (i) {
exitval = 1;
warn("rule %u: setsockopt(IP_DUMMYNET_DEL)",
co.do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr);
}
exitval = ipfw_delete_pipe(co.do_pipe, i);
} else {
if (co.use_set)
rulenum = (i & 0xffff) | (5 << 24) |
@ -3989,378 +3587,6 @@ ipfw_config_nat(int ac, char **av)
}
}
void
ipfw_config_pipe(int ac, char **av)
{
struct dn_pipe p;
int i;
char *end;
void *par = NULL;
memset(&p, 0, sizeof p);
av++; ac--;
/* Pipe number */
if (ac && isdigit(**av)) {
i = atoi(*av); av++; ac--;
if (co.do_pipe == 1)
p.pipe_nr = i;
else
p.fs.fs_nr = i;
}
while (ac > 0) {
double d;
int tok = match_token(dummynet_params, *av);
ac--; av++;
switch(tok) {
case TOK_NOERROR:
p.fs.flags_fs |= DN_NOERROR;
break;
case TOK_PLR:
NEED1("plr needs argument 0..1\n");
d = strtod(av[0], NULL);
if (d > 1)
d = 1;
else if (d < 0)
d = 0;
p.fs.plr = (int)(d*0x7fffffff);
ac--; av++;
break;
case TOK_QUEUE:
NEED1("queue needs queue size\n");
end = NULL;
p.fs.qsize = strtoul(av[0], &end, 0);
if (*end == 'K' || *end == 'k') {
p.fs.flags_fs |= DN_QSIZE_IS_BYTES;
p.fs.qsize *= 1024;
} else if (*end == 'B' ||
_substrcmp2(end, "by", "bytes") == 0) {
p.fs.flags_fs |= DN_QSIZE_IS_BYTES;
}
ac--; av++;
break;
case TOK_BUCKETS:
NEED1("buckets needs argument\n");
p.fs.rq_size = strtoul(av[0], NULL, 0);
ac--; av++;
break;
case TOK_MASK:
NEED1("mask needs mask specifier\n");
/*
* per-flow queue, mask is dst_ip, dst_port,
* src_ip, src_port, proto measured in bits
*/
par = NULL;
bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask));
end = NULL;
while (ac >= 1) {
uint32_t *p32 = NULL;
uint16_t *p16 = NULL;
uint32_t *p20 = NULL;
struct in6_addr *pa6 = NULL;
uint32_t a;
tok = match_token(dummynet_params, *av);
ac--; av++;
switch(tok) {
case TOK_ALL:
/*
* special case, all bits significant
*/
p.fs.flow_mask.dst_ip = ~0;
p.fs.flow_mask.src_ip = ~0;
p.fs.flow_mask.dst_port = ~0;
p.fs.flow_mask.src_port = ~0;
p.fs.flow_mask.proto = ~0;
n2mask(&(p.fs.flow_mask.dst_ip6), 128);
n2mask(&(p.fs.flow_mask.src_ip6), 128);
p.fs.flow_mask.flow_id6 = ~0;
p.fs.flags_fs |= DN_HAVE_FLOW_MASK;
goto end_mask;
case TOK_DSTIP:
p32 = &p.fs.flow_mask.dst_ip;
break;
case TOK_SRCIP:
p32 = &p.fs.flow_mask.src_ip;
break;
case TOK_DSTIP6:
pa6 = &(p.fs.flow_mask.dst_ip6);
break;
case TOK_SRCIP6:
pa6 = &(p.fs.flow_mask.src_ip6);
break;
case TOK_FLOWID:
p20 = &p.fs.flow_mask.flow_id6;
break;
case TOK_DSTPORT:
p16 = &p.fs.flow_mask.dst_port;
break;
case TOK_SRCPORT:
p16 = &p.fs.flow_mask.src_port;
break;
case TOK_PROTO:
break;
default:
ac++; av--; /* backtrack */
goto end_mask;
}
if (ac < 1)
errx(EX_USAGE, "mask: value missing");
if (*av[0] == '/') {
a = strtoul(av[0]+1, &end, 0);
if (pa6 == NULL)
a = (a == 32) ? ~0 : (1 << a) - 1;
} else
a = strtoul(av[0], &end, 0);
if (p32 != NULL)
*p32 = a;
else if (p16 != NULL) {
if (a > 0xFFFF)
errx(EX_DATAERR,
"port mask must be 16 bit");
*p16 = (uint16_t)a;
} else if (p20 != NULL) {
if (a > 0xfffff)
errx(EX_DATAERR,
"flow_id mask must be 20 bit");
*p20 = (uint32_t)a;
} else if (pa6 != NULL) {
if (a > 128)
errx(EX_DATAERR,
"in6addr invalid mask len");
else
n2mask(pa6, a);
} else {
if (a > 0xFF)
errx(EX_DATAERR,
"proto mask must be 8 bit");
p.fs.flow_mask.proto = (uint8_t)a;
}
if (a != 0)
p.fs.flags_fs |= DN_HAVE_FLOW_MASK;
ac--; av++;
} /* end while, config masks */
end_mask:
break;
case TOK_RED:
case TOK_GRED:
NEED1("red/gred needs w_q/min_th/max_th/max_p\n");
p.fs.flags_fs |= DN_IS_RED;
if (tok == TOK_GRED)
p.fs.flags_fs |= DN_IS_GENTLE_RED;
/*
* the format for parameters is w_q/min_th/max_th/max_p
*/
if ((end = strsep(&av[0], "/"))) {
double w_q = strtod(end, NULL);
if (w_q > 1 || w_q <= 0)
errx(EX_DATAERR, "0 < w_q <= 1");
p.fs.w_q = (int) (w_q * (1 << SCALE_RED));
}
if ((end = strsep(&av[0], "/"))) {
p.fs.min_th = strtoul(end, &end, 0);
if (*end == 'K' || *end == 'k')
p.fs.min_th *= 1024;
}
if ((end = strsep(&av[0], "/"))) {
p.fs.max_th = strtoul(end, &end, 0);
if (*end == 'K' || *end == 'k')
p.fs.max_th *= 1024;
}
if ((end = strsep(&av[0], "/"))) {
double max_p = strtod(end, NULL);
if (max_p > 1 || max_p <= 0)
errx(EX_DATAERR, "0 < max_p <= 1");
p.fs.max_p = (int)(max_p * (1 << SCALE_RED));
}
ac--; av++;
break;
case TOK_DROPTAIL:
p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED);
break;
case TOK_BW:
NEED1("bw needs bandwidth or interface\n");
if (co.do_pipe != 1)
errx(EX_DATAERR, "bandwidth only valid for pipes");
/*
* set clocking interface or bandwidth value
*/
if (av[0][0] >= 'a' && av[0][0] <= 'z') {
int l = sizeof(p.if_name)-1;
/* interface name */
strncpy(p.if_name, av[0], l);
p.if_name[l] = '\0';
p.bandwidth = 0;
} else {
p.if_name[0] = '\0';
p.bandwidth = strtoul(av[0], &end, 0);
if (*end == 'K' || *end == 'k') {
end++;
p.bandwidth *= 1000;
} else if (*end == 'M') {
end++;
p.bandwidth *= 1000000;
}
if ((*end == 'B' &&
_substrcmp2(end, "Bi", "Bit/s") != 0) ||
_substrcmp2(end, "by", "bytes") == 0)
p.bandwidth *= 8;
if (p.bandwidth < 0)
errx(EX_DATAERR, "bandwidth too large");
}
ac--; av++;
break;
case TOK_DELAY:
if (co.do_pipe != 1)
errx(EX_DATAERR, "delay only valid for pipes");
NEED1("delay needs argument 0..10000ms\n");
p.delay = strtoul(av[0], NULL, 0);
ac--; av++;
break;
case TOK_WEIGHT:
if (co.do_pipe == 1)
errx(EX_DATAERR,"weight only valid for queues");
NEED1("weight needs argument 0..100\n");
p.fs.weight = strtoul(av[0], &end, 0);
ac--; av++;
break;
case TOK_PIPE:
if (co.do_pipe == 1)
errx(EX_DATAERR,"pipe only valid for queues");
NEED1("pipe needs pipe_number\n");
p.fs.parent_nr = strtoul(av[0], &end, 0);
ac--; av++;
break;
default:
errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]);
}
}
if (co.do_pipe == 1) {
if (p.pipe_nr == 0)
errx(EX_DATAERR, "pipe_nr must be > 0");
if (p.delay > 10000)
errx(EX_DATAERR, "delay must be < 10000");
} else { /* co.do_pipe == 2, queue */
if (p.fs.parent_nr == 0)
errx(EX_DATAERR, "pipe must be > 0");
if (p.fs.weight >100)
errx(EX_DATAERR, "weight must be <= 100");
}
if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) {
size_t len;
long limit;
len = sizeof(limit);
if (sysctlbyname("net.inet.ip.dummynet.pipe_byte_limit",
&limit, &len, NULL, 0) == -1)
limit = 1024*1024;
if (p.fs.qsize > limit)
errx(EX_DATAERR, "queue size must be < %ldB", limit);
} else {
size_t len;
long limit;
len = sizeof(limit);
if (sysctlbyname("net.inet.ip.dummynet.pipe_slot_limit",
&limit, &len, NULL, 0) == -1)
limit = 100;
if (p.fs.qsize > limit)
errx(EX_DATAERR, "2 <= queue size <= %ld", limit);
}
if (p.fs.flags_fs & DN_IS_RED) {
size_t len;
int lookup_depth, avg_pkt_size;
double s, idle, weight, w_q;
struct clockinfo ck;
int t;
if (p.fs.min_th >= p.fs.max_th)
errx(EX_DATAERR, "min_th %d must be < than max_th %d",
p.fs.min_th, p.fs.max_th);
if (p.fs.max_th == 0)
errx(EX_DATAERR, "max_th must be > 0");
len = sizeof(int);
if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth",
&lookup_depth, &len, NULL, 0) == -1)
errx(1, "sysctlbyname(\"%s\")",
"net.inet.ip.dummynet.red_lookup_depth");
if (lookup_depth == 0)
errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth"
" must be greater than zero");
len = sizeof(int);
if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size",
&avg_pkt_size, &len, NULL, 0) == -1)
errx(1, "sysctlbyname(\"%s\")",
"net.inet.ip.dummynet.red_avg_pkt_size");
if (avg_pkt_size == 0)
errx(EX_DATAERR,
"net.inet.ip.dummynet.red_avg_pkt_size must"
" be greater than zero");
len = sizeof(struct clockinfo);
if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1)
errx(1, "sysctlbyname(\"%s\")", "kern.clockrate");
/*
* Ticks needed for sending a medium-sized packet.
* Unfortunately, when we are configuring a WF2Q+ queue, we
* do not have bandwidth information, because that is stored
* in the parent pipe, and also we have multiple queues
* competing for it. So we set s=0, which is not very
* correct. But on the other hand, why do we want RED with
* WF2Q+ ?
*/
if (p.bandwidth==0) /* this is a WF2Q+ queue */
s = 0;
else
s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth;
/*
* max idle time (in ticks) before avg queue size becomes 0.
* NOTA: (3/w_q) is approx the value x so that
* (1-w_q)^x < 10^-3.
*/
w_q = ((double)p.fs.w_q) / (1 << SCALE_RED);
idle = s * 3. / w_q;
p.fs.lookup_step = (int)idle / lookup_depth;
if (!p.fs.lookup_step)
p.fs.lookup_step = 1;
weight = 1 - w_q;
for (t = p.fs.lookup_step; t > 1; --t)
weight *= 1 - w_q;
p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED));
}
i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p);
if (i)
err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE");
}
static void
get_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask)
{

125
sbin/ipfw/ipfw2.h
View File

@ -71,6 +71,119 @@ struct _s_x {
int x;
};
enum tokens {
TOK_NULL=0,
TOK_OR,
TOK_NOT,
TOK_STARTBRACE,
TOK_ENDBRACE,
TOK_ACCEPT,
TOK_COUNT,
TOK_PIPE,
TOK_QUEUE,
TOK_DIVERT,
TOK_TEE,
TOK_NETGRAPH,
TOK_NGTEE,
TOK_FORWARD,
TOK_SKIPTO,
TOK_DENY,
TOK_REJECT,
TOK_RESET,
TOK_UNREACH,
TOK_CHECKSTATE,
TOK_NAT,
TOK_ALTQ,
TOK_LOG,
TOK_TAG,
TOK_UNTAG,
TOK_TAGGED,
TOK_UID,
TOK_GID,
TOK_JAIL,
TOK_IN,
TOK_LIMIT,
TOK_KEEPSTATE,
TOK_LAYER2,
TOK_OUT,
TOK_DIVERTED,
TOK_DIVERTEDLOOPBACK,
TOK_DIVERTEDOUTPUT,
TOK_XMIT,
TOK_RECV,
TOK_VIA,
TOK_FRAG,
TOK_IPOPTS,
TOK_IPLEN,
TOK_IPID,
TOK_IPPRECEDENCE,
TOK_IPTOS,
TOK_IPTTL,
TOK_IPVER,
TOK_ESTAB,
TOK_SETUP,
TOK_TCPDATALEN,
TOK_TCPFLAGS,
TOK_TCPOPTS,
TOK_TCPSEQ,
TOK_TCPACK,
TOK_TCPWIN,
TOK_ICMPTYPES,
TOK_MAC,
TOK_MACTYPE,
TOK_VERREVPATH,
TOK_VERSRCREACH,
TOK_ANTISPOOF,
TOK_IPSEC,
TOK_COMMENT,
TOK_PLR,
TOK_NOERROR,
TOK_BUCKETS,
TOK_DSTIP,
TOK_SRCIP,
TOK_DSTPORT,
TOK_SRCPORT,
TOK_ALL,
TOK_MASK,
TOK_BW,
TOK_DELAY,
TOK_RED,
TOK_GRED,
TOK_DROPTAIL,
TOK_PROTO,
TOK_WEIGHT,
TOK_IP,
TOK_IF,
TOK_ALOG,
TOK_DENY_INC,
TOK_SAME_PORTS,
TOK_UNREG_ONLY,
TOK_RESET_ADDR,
TOK_ALIAS_REV,
TOK_PROXY_ONLY,
TOK_REDIR_ADDR,
TOK_REDIR_PORT,
TOK_REDIR_PROTO,
TOK_IPV6,
TOK_FLOWID,
TOK_ICMP6TYPES,
TOK_EXT6HDR,
TOK_DSTIP6,
TOK_SRCIP6,
TOK_IPV4,
TOK_UNREACH6,
TOK_RESET6,
TOK_FIB,
TOK_SETFIB,
};
/*
* the following macro returns an error message if we run out of
* arguments.
@ -83,6 +196,14 @@ void *safe_realloc(void *ptr, size_t size);
/* a string comparison function used for historical compatibility */
int _substrcmp(const char *str1, const char* str2);
int _substrcmp2(const char *str1, const char* str2, const char* str3);
int match_token(struct _s_x *table, char *string);
int do_cmd(int optname, void *optval, uintptr_t optlen);
struct in6_addr;
void n2mask(struct in6_addr *mask, int n);
/*
* The reserved set numer. This is a constant in ip_fw.h
@ -103,3 +224,7 @@ void ipfw_flush(int force);
void ipfw_zero(int ac, char *av[], int optname);
void ipfw_list(int ac, char *av[], int show_counters);
/* in dummynet.c */
void ipfw_list_pipes(void *data, uint nbytes, int ac, char *av[]);
int ipfw_delete_pipe(int pipe_or_queue, int n);