svn commit: r301772 - in stable/10: sbin/ipfw sys/conf sys/modules/dummynet sys/netinet sys/netpfil/ipfw
Don Lewis
truckman at FreeBSD.org
Fri Jun 10 00:00:27 UTC 2016
Author: truckman
Date: Fri Jun 10 00:00:25 2016
New Revision: 301772
URL: https://svnweb.freebsd.org/changeset/base/301772
Log:
MFC r300779, r300781, r300783, r300784, r300949, r301162, r301180
r300779 | truckman | 2016-05-26 14:40:13 -0700 (Thu, 26 May 2016) | 64 lines
Import Dummynet AQM version 0.2.1 (CoDel, FQ-CoDel, PIE and FQ-PIE).
Centre for Advanced Internet Architectures
Implementing AQM in FreeBSD
* Overview <http://caia.swin.edu.au/freebsd/aqm/index.html>
* Articles, Papers and Presentations
<http://caia.swin.edu.au/freebsd/aqm/papers.html>
* Patches and Tools <http://caia.swin.edu.au/freebsd/aqm/downloads.html>
Overview
Recent years have seen a resurgence of interest in better managing
the depth of bottleneck queues in routers, switches and other places
that get congested. Solutions include transport protocol enhancements
at the end-hosts (such as delay-based or hybrid congestion control
schemes) and active queue management (AQM) schemes applied within
bottleneck queues.
The notion of AQM has been around since at least the late 1990s
(e.g. RFC 2309). In recent years the proliferation of oversized
buffers in all sorts of network devices (aka bufferbloat) has
stimulated keen community interest in four new AQM schemes -- CoDel,
FQ-CoDel, PIE and FQ-PIE.
The IETF AQM working group is looking to document these schemes,
and independent implementations are a corner-stone of the IETF's
process for confirming the clarity of publicly available protocol
descriptions. While significant development work on all three schemes
has occured in the Linux kernel, there is very little in FreeBSD.
Project Goals
This project began in late 2015, and aims to design and implement
functionally-correct versions of CoDel, FQ-CoDel, PIE and FQ_PIE
in FreeBSD (with code BSD-licensed as much as practical). We have
chosen to do this as extensions to FreeBSD's ipfw/dummynet firewall
and traffic shaper. Implementation of these AQM schemes in FreeBSD
will:
* Demonstrate whether the publicly available documentation is
sufficient to enable independent, functionally equivalent implementations
* Provide a broader suite of AQM options for sections the networking
community that rely on FreeBSD platforms
Program Members:
* Rasool Al Saadi (developer)
* Grenville Armitage (project lead)
Acknowledgements:
This project has been made possible in part by a gift from the
Comcast Innovation Fund.
Submitted by: Rasool Al-Saadi <ralsaadi at swin.edu.au>
X-No objection: core
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D6388
[Remove some code that was added to the mq_append() inline function in
HEAD by r258457, which was not merged to stable/10. The AQM patch
moved mq_append() from ip_dn_io.c to the new file ip_dn_private.h, so
we need to remove that copy of the r258457 changes.]
------------------------------------------------------------------------
r300781 | truckman | 2016-05-26 14:44:52 -0700 (Thu, 26 May 2016) | 7 lines
Modify BOUND_VAR() macro to wrap all of its arguments in () and tweak
its expression to work on powerpc and sparc64 (gcc compatibility).
Correct a typo in a nearby comment.
MFC after: 2 weeks (with r300779)
------------------------------------------------------------------------
r300783 | truckman | 2016-05-26 15:03:28 -0700 (Thu, 26 May 2016) | 4 lines
Correct a typo in a comment.
MFC after: 2 weeks (with r300779)
------------------------------------------------------------------------
r300784 | truckman | 2016-05-26 15:07:09 -0700 (Thu, 26 May 2016) | 5 lines
Include the new AQM files when compiling a kernel with options DUMMYNET.
Reported by: Nikolay Denev <nike_d AT cytexbg DOT com>
MFC after: 2 weeks (with r300779)
------------------------------------------------------------------------
r300949 | truckman | 2016-05-29 00:23:56 -0700 (Sun, 29 May 2016) | 10 lines
Cast some expressions that multiply a long long constant by a
floating point constant to int64_t. This avoids the runtime
conversion of the the other operand in a set of comparisons from
int64_t to floating point and doing the comparisions in floating
point.
Suggested by: lidl
Submitted by: Rasool Al-Saadi <ralsaadi at swin.edu.au>
MFC after: 2 weeks (with r300779)
------------------------------------------------------------------------
r301162 | truckman | 2016-06-01 13:04:24 -0700 (Wed, 01 Jun 2016) | 9 lines
Replace constant expressions that contain multiplications by
fractional floating point values with integer divides. This will
eliminate any chance that the compiler will generate code to evaluate
the expression using floating point at runtime.
Suggested by: bde
Submitted by: Rasool Al-Saadi <ralsaadi at swin.edu.au>
MFC after: 8 days (with r300779 and r300949)
------------------------------------------------------------------------
r301180 | truckman | 2016-06-01 17:42:15 -0700 (Wed, 01 Jun 2016) | 2 lines
Belatedly bump .Dd date for Dummynet AQM import in r300779.
Relnotes: yes
Added:
stable/10/sys/netpfil/ipfw/dn_aqm.h
- copied, changed from r300779, head/sys/netpfil/ipfw/dn_aqm.h
stable/10/sys/netpfil/ipfw/dn_aqm_codel.c
- copied unchanged from r300779, head/sys/netpfil/ipfw/dn_aqm_codel.c
stable/10/sys/netpfil/ipfw/dn_aqm_codel.h
- copied unchanged from r300779, head/sys/netpfil/ipfw/dn_aqm_codel.h
stable/10/sys/netpfil/ipfw/dn_aqm_pie.c
- copied, changed from r300779, head/sys/netpfil/ipfw/dn_aqm_pie.c
stable/10/sys/netpfil/ipfw/dn_aqm_pie.h
- copied, changed from r300779, head/sys/netpfil/ipfw/dn_aqm_pie.h
stable/10/sys/netpfil/ipfw/dn_sched_fq_codel.c
- copied unchanged from r300779, head/sys/netpfil/ipfw/dn_sched_fq_codel.c
stable/10/sys/netpfil/ipfw/dn_sched_fq_codel.h
- copied unchanged from r300779, head/sys/netpfil/ipfw/dn_sched_fq_codel.h
stable/10/sys/netpfil/ipfw/dn_sched_fq_codel_helper.h
- copied unchanged from r300779, head/sys/netpfil/ipfw/dn_sched_fq_codel_helper.h
stable/10/sys/netpfil/ipfw/dn_sched_fq_pie.c
- copied, changed from r300779, head/sys/netpfil/ipfw/dn_sched_fq_pie.c
Modified:
stable/10/sbin/ipfw/dummynet.c
stable/10/sbin/ipfw/ipfw.8
stable/10/sbin/ipfw/ipfw2.h
stable/10/sys/conf/files
stable/10/sys/modules/dummynet/Makefile
stable/10/sys/netinet/ip_dummynet.h
stable/10/sys/netpfil/ipfw/dn_sched.h
stable/10/sys/netpfil/ipfw/dn_sched_fifo.c
stable/10/sys/netpfil/ipfw/dn_sched_prio.c
stable/10/sys/netpfil/ipfw/dn_sched_qfq.c
stable/10/sys/netpfil/ipfw/dn_sched_rr.c
stable/10/sys/netpfil/ipfw/dn_sched_wf2q.c
stable/10/sys/netpfil/ipfw/ip_dn_glue.c
stable/10/sys/netpfil/ipfw/ip_dn_io.c
stable/10/sys/netpfil/ipfw/ip_dn_private.h
stable/10/sys/netpfil/ipfw/ip_dummynet.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sbin/ipfw/dummynet.c
==============================================================================
--- stable/10/sbin/ipfw/dummynet.c Thu Jun 9 22:39:02 2016 (r301771)
+++ stable/10/sbin/ipfw/dummynet.c Fri Jun 10 00:00:25 2016 (r301772)
@@ -1,4 +1,11 @@
/*
+ * Codel/FQ_Codel and PIE/FQ_PIE Code:
+ * Copyright (C) 2016 Centre for Advanced Internet Architectures,
+ * Swinburne University of Technology, Melbourne, Australia.
+ * Portions of this code were made possible in part by a gift from
+ * The Comcast Innovation Fund.
+ * Implemented by Rasool Al-Saadi <ralsaadi at swin.edu.au>
+ *
* Copyright (c) 2002-2003,2010 Luigi Rizzo
*
* Redistribution and use in source forms, with and without modification,
@@ -15,6 +22,7 @@
* dummynet support
*/
+#define NEW_AQM
#include <sys/types.h>
#include <sys/socket.h>
/* XXX there are several sysctl leftover here */
@@ -22,6 +30,10 @@
#include "ipfw2.h"
+#ifdef NEW_AQM
+#include <stdint.h>
+#endif
+
#include <ctype.h>
#include <err.h>
#include <errno.h>
@@ -59,6 +71,12 @@ static struct _s_x dummynet_params[] = {
{ "ecn", TOK_ECN },
{ "red", TOK_RED },
{ "gred", TOK_GRED },
+#ifdef NEW_AQM
+ { "codel", TOK_CODEL}, /* Codel AQM */
+ { "fq_codel", TOK_FQ_CODEL}, /* FQ-Codel */
+ { "pie", TOK_PIE}, /* PIE AQM */
+ { "fq_pie", TOK_FQ_PIE}, /* FQ-PIE */
+#endif
{ "bw", TOK_BW },
{ "bandwidth", TOK_BW },
{ "delay", TOK_DELAY },
@@ -81,6 +99,32 @@ static struct _s_x dummynet_params[] = {
{ NULL, 0 } /* terminator */
};
+#ifdef NEW_AQM
+/* AQM/extra sched parameters tokens*/
+static struct _s_x aqm_params[] = {
+ { "target", TOK_TARGET},
+ { "interval", TOK_INTERVAL},
+ { "limit", TOK_LIMIT},
+ { "flows", TOK_FLOWS},
+ { "quantum", TOK_QUANTUM},
+ { "ecn", TOK_ECN},
+ { "noecn", TOK_NO_ECN},
+ { "tupdate", TOK_TUPDATE},
+ { "max_burst", TOK_MAX_BURST},
+ { "max_ecnth", TOK_MAX_ECNTH},
+ { "alpha", TOK_ALPHA},
+ { "beta", TOK_BETA},
+ { "capdrop", TOK_CAPDROP},
+ { "nocapdrop", TOK_NO_CAPDROP},
+ { "onoff", TOK_ONOFF},
+ { "dre", TOK_DRE},
+ { "ts", TOK_TS},
+ { "derand", TOK_DERAND},
+ { "noderand", TOK_NO_DERAND},
+ { NULL, 0 } /* terminator */
+};
+#endif
+
#define O_NEXT(p, len) ((void *)((char *)p + len))
static void
@@ -102,6 +146,214 @@ o_next(struct dn_id **o, int len, int ty
return ret;
}
+#ifdef NEW_AQM
+
+/* Codel flags */
+enum {
+ CODEL_ECN_ENABLED = 1
+};
+
+/* PIE flags, from PIE kernel module */
+enum {
+ PIE_ECN_ENABLED = 1,
+ PIE_CAPDROP_ENABLED = 2,
+ PIE_ON_OFF_MODE_ENABLED = 4,
+ PIE_DEPRATEEST_ENABLED = 8,
+ PIE_DERAND_ENABLED = 16
+};
+
+#define PIE_FIX_POINT_BITS 13
+#define PIE_SCALE (1L<<PIE_FIX_POINT_BITS)
+
+/* integer to time */
+void
+us_to_time(int t,char *strt)
+{
+ if (t < 0)
+ strt[0]='\0';
+ else if ( t==0 )
+ sprintf(strt,"%d", t);
+ else if (t< 1000)
+ sprintf(strt,"%dus", t);
+ else if (t < 1000000)
+ sprintf(strt,"%gms", (float) t / 1000);
+ else
+ sprintf(strt,"%gfs", (float) t / 1000000);
+}
+
+/*
+ * returns -1 if s is not a valid time, otherwise, return time in us
+ */
+static long
+time_to_us(const char *s)
+{
+ int i, dots = 0;
+ int len = strlen(s);
+ char strt[16]="", stru[16]="";
+
+ if (len>15)
+ return -1;
+ for (i = 0; i<len && (isdigit(s[i]) || s[i]=='.') ; i++)
+ if (s[i]=='.') {
+ if (dots)
+ return -1;
+ else
+ dots++;
+ }
+
+ if (!i)
+ return -1;
+ strncpy(strt, s, i);
+ if (i<len)
+ strcpy(stru, s+i);
+ else
+ strcpy(stru, "ms");
+
+ if (!strcasecmp(stru, "us"))
+ return atol(strt);
+ if (!strcasecmp(stru, "ms"))
+ return (strtod(strt, NULL) * 1000);
+ if (!strcasecmp(stru, "s"))
+ return (strtod(strt, NULL)*1000000);
+
+ return -1;
+}
+
+
+/* Get AQM or scheduler extra parameters */
+void
+get_extra_parms(uint32_t nr, char *out, int subtype)
+{
+ struct dn_extra_parms *ep;
+ int ret;
+ char strt1[15], strt2[15], strt3[15];
+ u_int l;
+
+ /* prepare the request */
+ l = sizeof(struct dn_extra_parms);
+ ep = safe_calloc(1, l);
+ memset(ep, 0, sizeof(*ep));
+ *out = '\0';
+
+ oid_fill(&ep->oid, l, DN_CMD_GET, DN_API_VERSION);
+ ep->oid.len = l;
+ ep->oid.subtype = subtype;
+ ep->nr = nr;
+
+ ret = do_cmd(-IP_DUMMYNET3, ep, (uintptr_t)&l);
+ if (ret) {
+ free(ep);
+ errx(EX_DATAERR, "Error getting extra parameters\n");
+ }
+
+ switch (subtype) {
+ case DN_AQM_PARAMS:
+ if( !strcasecmp(ep->name, "codel")) {
+ us_to_time(ep->par[0], strt1);
+ us_to_time(ep->par[1], strt2);
+ l = sprintf(out, " AQM CoDel target %s interval %s",
+ strt1, strt2);
+ if (ep->par[2] & CODEL_ECN_ENABLED)
+ l = sprintf(out + l, " ECN");
+ else
+ l += sprintf(out + l, " NoECN");
+ } else if( !strcasecmp(ep->name, "pie")) {
+ us_to_time(ep->par[0], strt1);
+ us_to_time(ep->par[1], strt2);
+ us_to_time(ep->par[2], strt3);
+ l = sprintf(out, " AQM type PIE target %s tupdate %s alpha "
+ "%g beta %g max_burst %s max_ecnth %.3g",
+ strt1,
+ strt2,
+ ep->par[4] / (float) PIE_SCALE,
+ ep->par[5] / (float) PIE_SCALE,
+ strt3,
+ ep->par[3] / (float) PIE_SCALE
+ );
+
+ if (ep->par[6] & PIE_ECN_ENABLED)
+ l += sprintf(out + l, " ECN");
+ else
+ l += sprintf(out + l, " NoECN");
+ if (ep->par[6] & PIE_CAPDROP_ENABLED)
+ l += sprintf(out + l, " CapDrop");
+ else
+ l += sprintf(out + l, " NoCapDrop");
+ if (ep->par[6] & PIE_ON_OFF_MODE_ENABLED)
+ l += sprintf(out + l, " OnOff");
+ if (ep->par[6] & PIE_DEPRATEEST_ENABLED)
+ l += sprintf(out + l, " DRE");
+ else
+ l += sprintf(out + l, " TS");
+ if (ep->par[6] & PIE_DERAND_ENABLED)
+ l += sprintf(out + l, " Derand");
+ else
+ l += sprintf(out + l, " NoDerand");
+ }
+ break;
+
+ case DN_SCH_PARAMS:
+ if (!strcasecmp(ep->name,"FQ_CODEL")) {
+ us_to_time(ep->par[0], strt1);
+ us_to_time(ep->par[1], strt2);
+ l = sprintf(out," FQ_CODEL target %s interval %s"
+ " quantum %jd limit %jd flows %jd",
+ strt1, strt2,
+ (intmax_t) ep->par[3],
+ (intmax_t) ep->par[4],
+ (intmax_t) ep->par[5]
+ );
+ if (ep->par[2] & CODEL_ECN_ENABLED)
+ l += sprintf(out + l, " ECN");
+ else
+ l += sprintf(out + l, " NoECN");
+ l += sprintf(out + l, "\n");
+ } else if (!strcasecmp(ep->name,"FQ_PIE")) {
+ us_to_time(ep->par[0], strt1);
+ us_to_time(ep->par[1], strt2);
+ us_to_time(ep->par[2], strt3);
+ l = sprintf(out, " FQ_PIE target %s tupdate %s alpha "
+ "%g beta %g max_burst %s max_ecnth %.3g"
+ " quantum %jd limit %jd flows %jd",
+ strt1,
+ strt2,
+ ep->par[4] / (float) PIE_SCALE,
+ ep->par[5] / (float) PIE_SCALE,
+ strt3,
+ ep->par[3] / (float) PIE_SCALE,
+ (intmax_t) ep->par[7],
+ (intmax_t) ep->par[8],
+ (intmax_t) ep->par[9]
+ );
+
+ if (ep->par[6] & PIE_ECN_ENABLED)
+ l += sprintf(out + l, " ECN");
+ else
+ l += sprintf(out + l, " NoECN");
+ if (ep->par[6] & PIE_CAPDROP_ENABLED)
+ l += sprintf(out + l, " CapDrop");
+ else
+ l += sprintf(out + l, " NoCapDrop");
+ if (ep->par[6] & PIE_ON_OFF_MODE_ENABLED)
+ l += sprintf(out + l, " OnOff");
+ if (ep->par[6] & PIE_DEPRATEEST_ENABLED)
+ l += sprintf(out + l, " DRE");
+ else
+ l += sprintf(out + l, " TS");
+ if (ep->par[6] & PIE_DERAND_ENABLED)
+ l += sprintf(out + l, " Derand");
+ else
+ l += sprintf(out + l, " NoDerand");
+ l += sprintf(out + l, "\n");
+ }
+ break;
+ }
+
+ free(ep);
+}
+#endif
+
+
#if 0
static int
sort_q(void *arg, const void *pa, const void *pb)
@@ -225,7 +477,7 @@ print_flowset_parms(struct dn_fs *fs, ch
int l;
char qs[30];
char plr[30];
- char red[90]; /* Display RED parameters */
+ char red[200]; /* Display RED parameters */
l = fs->qsize;
if (fs->flags & DN_QSIZE_BYTES) {
@@ -250,6 +502,11 @@ print_flowset_parms(struct dn_fs *fs, ch
1.0 * fs->max_p / (double)(1 << SCALE_RED));
if (fs->flags & DN_IS_ECN)
strncat(red, " (ecn)", 6);
+#ifdef NEW_AQM
+ /* get AQM parameters */
+ } else if (fs->flags & DN_IS_AQM) {
+ get_extra_parms(fs->fs_nr, red, DN_AQM_PARAMS);
+#endif
} else
sprintf(red, "droptail");
@@ -340,6 +597,11 @@ list_pipes(struct dn_id *oid, struct dn_
printf(" sched %d type %s flags 0x%x %d buckets %d active\n",
s->sched_nr,
s->name, s->flags, s->buckets, s->oid.id);
+#ifdef NEW_AQM
+ char parms[200];
+ get_extra_parms(s->sched_nr, parms, DN_SCH_PARAMS);
+ printf("%s",parms);
+#endif
if (s->flags & DN_HAVE_MASK)
print_mask(&s->sched_mask);
}
@@ -740,6 +1002,242 @@ load_extra_delays(const char *filename,
strncpy(p->name, profile_name, sizeof(p->name));
}
+#ifdef NEW_AQM
+
+/* Parse AQM/extra scheduler parameters */
+static int
+process_extra_parms(int *ac, char **av, struct dn_extra_parms *ep,
+ uint16_t type)
+{
+ int i;
+
+ /* use kernel defaults */
+ for (i=0; i<DN_MAX_EXTRA_PARM; i++)
+ ep->par[i] = -1;
+
+ switch(type) {
+ case TOK_CODEL:
+ case TOK_FQ_CODEL:
+ /* Codel
+ * 0- target, 1- interval, 2- flags,
+ * FQ_CODEL
+ * 3- quantum, 4- limit, 5- flows
+ */
+ if (type==TOK_CODEL)
+ ep->par[2] = 0;
+ else
+ ep->par[2] = CODEL_ECN_ENABLED;
+
+ while (*ac > 0) {
+ int tok = match_token(aqm_params, *av);
+ (*ac)--; av++;
+ switch(tok) {
+ case TOK_TARGET:
+ if (*ac <= 0 || time_to_us(av[0]) < 0)
+ errx(EX_DATAERR, "target needs time\n");
+
+ ep->par[0] = time_to_us(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_INTERVAL:
+ if (*ac <= 0 || time_to_us(av[0]) < 0)
+ errx(EX_DATAERR, "interval needs time\n");
+
+ ep->par[1] = time_to_us(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_ECN:
+ ep->par[2] = CODEL_ECN_ENABLED;
+ break;
+ case TOK_NO_ECN:
+ ep->par[2] &= ~CODEL_ECN_ENABLED;
+ break;
+ /* Config fq_codel parameters */
+ case TOK_QUANTUM:
+ if (type != TOK_FQ_CODEL)
+ errx(EX_DATAERR, "quantum is not for codel\n");
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "quantum needs number\n");
+
+ ep->par[3]= atoi(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_LIMIT:
+ if (type != TOK_FQ_CODEL)
+ errx(EX_DATAERR, "limit is not for codel, use queue instead\n");
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "limit needs number\n");
+
+ ep->par[4] = atoi(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_FLOWS:
+ if (type != TOK_FQ_CODEL)
+ errx(EX_DATAERR, "flows is not for codel\n");
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "flows needs number\n");
+
+ ep->par[5] = atoi(av[0]);
+ (*ac)--; av++;
+ break;
+
+ default:
+ printf("%s is Invalid parameter\n", av[-1]);
+ }
+ }
+ break;
+ case TOK_PIE:
+ case TOK_FQ_PIE:
+ /* PIE
+ * 0- target , 1- tupdate, 2- max_burst,
+ * 3- max_ecnth, 4- alpha,
+ * 5- beta, 6- flags
+ * FQ_CODEL
+ * 7- quantum, 8- limit, 9- flows
+ */
+
+ if ( type == TOK_PIE)
+ ep->par[6] = PIE_CAPDROP_ENABLED | PIE_DEPRATEEST_ENABLED
+ | PIE_DERAND_ENABLED;
+ else
+ /* for FQ-PIE, use TS mode */
+ ep->par[6] = PIE_CAPDROP_ENABLED | PIE_DERAND_ENABLED
+ | PIE_ECN_ENABLED;
+
+ while (*ac > 0) {
+ int tok = match_token(aqm_params, *av);
+ (*ac)--; av++;
+ switch(tok) {
+ case TOK_TARGET:
+ if (*ac <= 0 || time_to_us(av[0]) < 0)
+ errx(EX_DATAERR, "target needs time\n");
+
+ ep->par[0] = time_to_us(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_TUPDATE:
+ if (*ac <= 0 || time_to_us(av[0]) < 0)
+ errx(EX_DATAERR, "tupdate needs time\n");
+
+ ep->par[1] = time_to_us(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_MAX_BURST:
+ if (*ac <= 0 || time_to_us(av[0]) < 0)
+ errx(EX_DATAERR, "max_burst needs time\n");
+
+ ep->par[2] = time_to_us(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_MAX_ECNTH:
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "max_ecnth needs number\n");
+
+ ep->par[3] = atof(av[0]) * PIE_SCALE;
+ (*ac)--; av++;
+ break;
+
+ case TOK_ALPHA:
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "alpha needs number\n");
+
+ ep->par[4] = atof(av[0]) * PIE_SCALE;
+ (*ac)--; av++;
+ break;
+
+ case TOK_BETA:
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "beta needs number\n");
+
+ ep->par[5] = atof(av[0]) * PIE_SCALE;
+ (*ac)--; av++;
+ break;
+
+ case TOK_ECN:
+ ep->par[6] |= PIE_ECN_ENABLED;
+ break;
+ case TOK_NO_ECN:
+ ep->par[6] &= ~PIE_ECN_ENABLED;
+ break;
+
+ case TOK_CAPDROP:
+ ep->par[6] |= PIE_CAPDROP_ENABLED;
+ break;
+ case TOK_NO_CAPDROP:
+ ep->par[6] &= ~PIE_CAPDROP_ENABLED;
+ break;
+
+ case TOK_ONOFF:
+ ep->par[6] |= PIE_ON_OFF_MODE_ENABLED;
+ break;
+
+ case TOK_DRE:
+ ep->par[6] |= PIE_DEPRATEEST_ENABLED;
+ break;
+
+ case TOK_TS:
+ ep->par[6] &= ~PIE_DEPRATEEST_ENABLED;
+ break;
+
+ case TOK_DERAND:
+ ep->par[6] |= PIE_DERAND_ENABLED;
+ break;
+ case TOK_NO_DERAND:
+ ep->par[6] &= ~PIE_DERAND_ENABLED;
+ break;
+
+ /* Config fq_pie parameters */
+ case TOK_QUANTUM:
+ if (type != TOK_FQ_PIE)
+ errx(EX_DATAERR, "quantum is not for pie\n");
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "quantum needs number\n");
+
+ ep->par[7]= atoi(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_LIMIT:
+ if (type != TOK_FQ_PIE)
+ errx(EX_DATAERR, "limit is not for pie, use queue instead\n");
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "limit needs number\n");
+
+ ep->par[8] = atoi(av[0]);
+ (*ac)--; av++;
+ break;
+
+ case TOK_FLOWS:
+ if (type != TOK_FQ_PIE)
+ errx(EX_DATAERR, "flows is not for pie\n");
+ if (*ac <= 0 || !is_valid_number(av[0]))
+ errx(EX_DATAERR, "flows needs number\n");
+
+ ep->par[9] = atoi(av[0]);
+ (*ac)--; av++;
+ break;
+
+
+ default:
+ printf("%s is invalid parameter\n", av[-1]);
+ }
+ }
+ break;
+ }
+
+ return 0;
+}
+
+#endif
+
+
/*
* configuration of pipes, schedulers, flowsets.
* When we configure a new scheduler, an empty pipe is created, so:
@@ -771,6 +1269,12 @@ ipfw_config_pipe(int ac, char **av)
struct dn_fs *fs = NULL;
struct dn_profile *pf = NULL;
struct ipfw_flow_id *mask = NULL;
+#ifdef NEW_AQM
+ struct dn_extra_parms *aqm_extra;
+ struct dn_extra_parms *sch_extra;
+ int lmax_extra;
+#endif
+
int lmax;
uint32_t _foo = 0, *flags = &_foo , *buckets = &_foo;
@@ -782,6 +1286,15 @@ ipfw_config_pipe(int ac, char **av)
lmax += sizeof(struct dn_sch) + sizeof(struct dn_link) +
sizeof(struct dn_fs) + sizeof(struct dn_profile);
+#ifdef NEW_AQM
+ /* Extra Params */
+ lmax_extra = sizeof(struct dn_extra_parms);
+ /* two lmax_extra because one for AQM params and another
+ * sch params
+ */
+ lmax += lmax_extra*2;
+#endif
+
av++; ac--;
/* Pipe number */
if (ac && isdigit(**av)) {
@@ -807,8 +1320,16 @@ ipfw_config_pipe(int ac, char **av)
* The FIFO scheduler and link are derived from the
* WF2Q+ one in the kernel.
*/
+#ifdef NEW_AQM
+ sch_extra = o_next(&buf, lmax_extra, DN_TEXT);
+ sch_extra ->oid.subtype = 0; /* don't configure scheduler */
+#endif
sch = o_next(&buf, sizeof(*sch), DN_SCH);
p = o_next(&buf, sizeof(*p), DN_LINK);
+#ifdef NEW_AQM
+ aqm_extra = o_next(&buf, lmax_extra, DN_TEXT);
+ aqm_extra ->oid.subtype = 0; /* don't configure AQM */
+#endif
fs = o_next(&buf, sizeof(*fs), DN_FS);
sch->sched_nr = i;
@@ -826,6 +1347,10 @@ ipfw_config_pipe(int ac, char **av)
break;
case 2: /* "queue N config ... " */
+#ifdef NEW_AQM
+ aqm_extra = o_next(&buf, lmax_extra, DN_TEXT);
+ aqm_extra ->oid.subtype = 0;
+#endif
fs = o_next(&buf, sizeof(*fs), DN_FS);
fs->fs_nr = i;
mask = &fs->flow_mask;
@@ -834,7 +1359,15 @@ ipfw_config_pipe(int ac, char **av)
break;
case 3: /* "sched N config ..." */
+#ifdef NEW_AQM
+ sch_extra = o_next(&buf, lmax_extra, DN_TEXT);
+ sch_extra ->oid.subtype = 0;
+#endif
sch = o_next(&buf, sizeof(*sch), DN_SCH);
+#ifdef NEW_AQM
+ aqm_extra = o_next(&buf, lmax_extra, DN_TEXT);
+ aqm_extra ->oid.subtype = 0;
+#endif
fs = o_next(&buf, sizeof(*fs), DN_FS);
sch->sched_nr = i;
mask = &sch->sched_mask;
@@ -1021,7 +1554,31 @@ ipfw_config_pipe(int ac, char **av)
} /* end while, config masks */
end_mask:
break;
+#ifdef NEW_AQM
+ case TOK_CODEL:
+ case TOK_PIE:
+ NEED(fs, "codel/pie is only for flowsets");
+
+ fs->flags &= ~(DN_IS_RED|DN_IS_GENTLE_RED);
+ fs->flags |= DN_IS_AQM;
+
+ strcpy(aqm_extra->name,av[-1]);
+ aqm_extra->oid.subtype = DN_AQM_PARAMS;
+
+ process_extra_parms(&ac, av, aqm_extra, tok);
+ break;
+ case TOK_FQ_CODEL:
+ case TOK_FQ_PIE:
+ if (!strcmp(av[-1],"type"))
+ errx(EX_DATAERR, "use type before fq_codel/fq_pie");
+
+ NEED(sch, "fq_codel/fq_pie is only for schd");
+ strcpy(sch_extra->name,av[-1]);
+ sch_extra->oid.subtype = DN_SCH_PARAMS;
+ process_extra_parms(&ac, av, sch_extra, tok);
+ break;
+#endif
case TOK_RED:
case TOK_GRED:
NEED1("red/gred needs w_q/min_th/max_th/max_p\n");
@@ -1088,7 +1645,20 @@ end_mask:
errx(1, "type %s too long\n", av[0]);
strcpy(sch->name, av[0]);
sch->oid.subtype = 0; /* use string */
- ac--; av++;
+#ifdef NEW_AQM
+ /* if fq_codel is selected, consider all tokens after it
+ * as parameters
+ */
+ if (!strcasecmp(av[0],"fq_codel") || !strcasecmp(av[0],"fq_pie")){
+ strcpy(sch_extra->name,av[0]);
+ sch_extra->oid.subtype = DN_SCH_PARAMS;
+ process_extra_parms(&ac, av, sch_extra, tok);
+ } else {
+ ac--;av++;
+ }
+#else
+ ac--;av++;
+#endif
break;
}
@@ -1182,9 +1752,17 @@ end_mask:
errx(EX_DATAERR, "2 <= queue size <= %ld", limit);
}
+#ifdef NEW_AQM
+ if ((fs->flags & DN_IS_ECN) && !((fs->flags & DN_IS_RED)||
+ (fs->flags & DN_IS_AQM)))
+ errx(EX_USAGE, "ECN can be used with red/gred/"
+ "codel/fq_codel only!");
+#else
if ((fs->flags & DN_IS_ECN) && !(fs->flags & DN_IS_RED))
errx(EX_USAGE, "enable red/gred for ECN");
+#endif
+
if (fs->flags & DN_IS_RED) {
size_t len;
int lookup_depth, avg_pkt_size;
Modified: stable/10/sbin/ipfw/ipfw.8
==============================================================================
--- stable/10/sbin/ipfw/ipfw.8 Thu Jun 9 22:39:02 2016 (r301771)
+++ stable/10/sbin/ipfw/ipfw.8 Fri Jun 10 00:00:25 2016 (r301772)
@@ -1,7 +1,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 31, 2014
+.Dd May 26, 2016
.Dt IPFW 8
.Os
.Sh NAME
Modified: stable/10/sbin/ipfw/ipfw2.h
==============================================================================
--- stable/10/sbin/ipfw/ipfw2.h Thu Jun 9 22:39:02 2016 (r301771)
+++ stable/10/sbin/ipfw/ipfw2.h Fri Jun 10 00:00:25 2016 (r301772)
@@ -168,6 +168,31 @@ enum tokens {
TOK_ECN,
TOK_DROPTAIL,
TOK_PROTO,
+#ifdef NEW_AQM
+ /* AQM tokens*/
+ TOK_NO_ECN,
+ TOK_CODEL,
+ TOK_FQ_CODEL,
+ TOK_TARGET,
+ TOK_INTERVAL,
+ TOK_FLOWS,
+ TOK_QUANTUM,
+
+ TOK_PIE,
+ TOK_FQ_PIE,
+ TOK_TUPDATE,
+ TOK_MAX_BURST,
+ TOK_MAX_ECNTH,
+ TOK_ALPHA,
+ TOK_BETA,
+ TOK_CAPDROP,
+ TOK_NO_CAPDROP,
+ TOK_ONOFF,
+ TOK_DRE,
+ TOK_TS,
+ TOK_DERAND,
+ TOK_NO_DERAND,
+#endif
/* dummynet tokens */
TOK_WEIGHT,
TOK_LMAX,
Modified: stable/10/sys/conf/files
==============================================================================
--- stable/10/sys/conf/files Thu Jun 9 22:39:02 2016 (r301771)
+++ stable/10/sys/conf/files Fri Jun 10 00:00:25 2016 (r301772)
@@ -3592,8 +3592,12 @@ netipx/spx_usrreq.c optional ipx
netnatm/natm.c optional natm
netnatm/natm_pcb.c optional natm
netnatm/natm_proto.c optional natm
+netpfil/ipfw/dn_aqm_codel.c optional inet dummynet
+netpfil/ipfw/dn_aqm_pie.c optional inet dummynet
netpfil/ipfw/dn_heap.c optional inet dummynet
netpfil/ipfw/dn_sched_fifo.c optional inet dummynet
+netpfil/ipfw/dn_sched_fq_codel.c optional inet dummynet
+netpfil/ipfw/dn_sched_fq_pie.c optional inet dummynet
netpfil/ipfw/dn_sched_prio.c optional inet dummynet
netpfil/ipfw/dn_sched_qfq.c optional inet dummynet
netpfil/ipfw/dn_sched_rr.c optional inet dummynet
Modified: stable/10/sys/modules/dummynet/Makefile
==============================================================================
--- stable/10/sys/modules/dummynet/Makefile Thu Jun 9 22:39:02 2016 (r301771)
+++ stable/10/sys/modules/dummynet/Makefile Fri Jun 10 00:00:25 2016 (r301772)
@@ -6,8 +6,9 @@
KMOD= dummynet
SRCS= ip_dummynet.c
SRCS+= ip_dn_glue.c ip_dn_io.c
+SRCS+= dn_aqm_codel.c dn_aqm_pie.c
SRCS+= dn_heap.c dn_sched_fifo.c dn_sched_qfq.c dn_sched_rr.c dn_sched_wf2q.c
-SRCS+= dn_sched_prio.c
+SRCS+= dn_sched_prio.c dn_sched_fq_codel.c dn_sched_fq_pie.c
SRCS+= opt_inet6.h
.if !defined(KERNBUILDDIR)
Modified: stable/10/sys/netinet/ip_dummynet.h
==============================================================================
--- stable/10/sys/netinet/ip_dummynet.h Thu Jun 9 22:39:02 2016 (r301771)
+++ stable/10/sys/netinet/ip_dummynet.h Fri Jun 10 00:00:25 2016 (r301772)
@@ -29,7 +29,7 @@
#ifndef _IP_DUMMYNET_H
#define _IP_DUMMYNET_H
-
+#define NEW_AQM
/*
* Definition of the kernel-userland API for dummynet.
*
@@ -85,7 +85,13 @@ enum {
/* special commands for emulation of sysctl variables */
DN_SYSCTL_GET,
DN_SYSCTL_SET,
-
+#ifdef NEW_AQM
+ /* subtypes used for setting/getting extra parameters.
+ * these subtypes used with IP_DUMMYNET3 command (get)
+ * and DN_TEXT (set). */
+ DN_AQM_PARAMS, /* AQM extra params */
+ DN_SCH_PARAMS, /* scheduler extra params */
+#endif
DN_LAST,
};
@@ -105,6 +111,9 @@ enum { /* user flags */
DN_IS_RED = 0x0020,
DN_IS_GENTLE_RED= 0x0040,
DN_IS_ECN = 0x0080,
+ #ifdef NEW_AQM
+ DN_IS_AQM = 0x0100, /* AQMs: e.g Codel & PIE */
+ #endif
DN_PIPE_CMD = 0x1000, /* pipe config... */
};
@@ -210,7 +219,19 @@ struct dn_profile {
int samples[ED_MAX_SAMPLES_NO]; /* may be shorter */
};
-
+#ifdef NEW_AQM
+/* Extra parameters for AQM and scheduler.
+ * This struct is used to pass and retrieve parameters (configurations)
+ * to/from AQM and Scheduler.
+ */
+struct dn_extra_parms {
+ struct dn_id oid;
+ char name[16];
+ uint32_t nr;
+#define DN_MAX_EXTRA_PARM 10
+ int64_t par[DN_MAX_EXTRA_PARM];
+};
+#endif
/*
* Overall structure of dummynet
Copied and modified: stable/10/sys/netpfil/ipfw/dn_aqm.h (from r300779, head/sys/netpfil/ipfw/dn_aqm.h)
==============================================================================
--- head/sys/netpfil/ipfw/dn_aqm.h Thu May 26 21:40:13 2016 (r300779, copy source)
+++ stable/10/sys/netpfil/ipfw/dn_aqm.h Fri Jun 10 00:00:25 2016 (r301772)
@@ -28,7 +28,7 @@
*/
/*
- * API for writting an Active Queue Management algorithm for Dummynet
+ * API for writing an Active Queue Management algorithm for Dummynet
*
* $FreeBSD$
*/
@@ -52,9 +52,9 @@ typedef int32_t aqm_stime_t;
#define DN_AQM_MTAG_TS 55345
/* Macro for variable bounding */
-#define BOUND_VAR(x,l,h) (x < l? l : x > h? h : x)
+#define BOUND_VAR(x,l,h) ((x) > (h)? (h) : ((x) > (l)? (x) : (l)))
-/* sysctl variable to count number of droped packets */
+/* sysctl variable to count number of dropped packets */
extern unsigned long io_pkt_drop;
/*
Copied: stable/10/sys/netpfil/ipfw/dn_aqm_codel.c (from r300779, head/sys/netpfil/ipfw/dn_aqm_codel.c)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/10/sys/netpfil/ipfw/dn_aqm_codel.c Fri Jun 10 00:00:25 2016 (r301772, copy of r300779, head/sys/netpfil/ipfw/dn_aqm_codel.c)
@@ -0,0 +1,444 @@
+/*
+ * Codel - The Controlled-Delay Active Queue Management algorithm.
+ *
+ * $FreeBSD$
+ *
+ * Copyright (C) 2016 Centre for Advanced Internet Architectures,
+ * Swinburne University of Technology, Melbourne, Australia.
+ * Portions of this code were made possible in part by a gift from
+ * The Comcast Innovation Fund.
+ * Implemented by Rasool Al-Saadi <ralsaadi at swin.edu.au>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#include "opt_inet6.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/priv.h>
+#include <sys/proc.h>
+#include <sys/rwlock.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/sysctl.h>
+
+#include <net/if.h> /* IFNAMSIZ, struct ifaddr, ifq head, lock.h mutex.h */
+#include <net/netisr.h>
+#include <net/vnet.h>
+
+#include <netinet/in.h>
+#include <netinet/ip.h> /* ip_len, ip_off */
+#include <netinet/ip_var.h> /* ip_output(), IP_FORWARDING */
+#include <netinet/ip_fw.h>
+#include <netinet/ip_dummynet.h>
+#include <netinet/if_ether.h> /* various ether_* routines */
+#include <netinet/ip6.h> /* for ip6_input, ip6_output prototypes */
+#include <netinet6/ip6_var.h>
+#include <netpfil/ipfw/dn_heap.h>
+
+#ifdef NEW_AQM
+#include <netpfil/ipfw/ip_fw_private.h>
+#include <netpfil/ipfw/ip_dn_private.h>
+#include <netpfil/ipfw/dn_aqm.h>
+#include <netpfil/ipfw/dn_aqm_codel.h>
+#include <netpfil/ipfw/dn_sched.h>
+
+#define DN_AQM_CODEL 1
+
+static struct dn_aqm codel_desc;
+
+/* default codel parameters */
+struct dn_aqm_codel_parms codel_sysctl = {5000 * AQM_TIME_1US,
+ 100000 * AQM_TIME_1US, 0};
+
+static int
+codel_sysctl_interval_handler(SYSCTL_HANDLER_ARGS)
+{
+ int error;
+ long value;
+
+ value = codel_sysctl.interval;
+ value /= AQM_TIME_1US;
+ error = sysctl_handle_long(oidp, &value, 0, req);
+ if (error != 0 || req->newptr == NULL)
+ return (error);
+ if (value < 1 || value > 100 * AQM_TIME_1S)
+ return (EINVAL);
+ codel_sysctl.interval = value * AQM_TIME_1US ;
+ return (0);
+}
+
+static int
+codel_sysctl_target_handler(SYSCTL_HANDLER_ARGS)
+{
+ int error;
+ long value;
+
+ value = codel_sysctl.target;
+ value /= AQM_TIME_1US;
+ error = sysctl_handle_long(oidp, &value, 0, req);
+ if (error != 0 || req->newptr == NULL)
+ return (error);
+ D("%ld", value);
+ if (value < 1 || value > 5 * AQM_TIME_1S)
+ return (EINVAL);
+ codel_sysctl.target = value * AQM_TIME_1US ;
+ return (0);
+}
+
+/* defining Codel sysctl variables */
+SYSBEGIN(f4)
+
+SYSCTL_DECL(_net_inet);
+SYSCTL_DECL(_net_inet_ip);
+SYSCTL_DECL(_net_inet_ip_dummynet);
+static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO,
+ codel, CTLFLAG_RW, 0, "CODEL");
+
+#ifdef SYSCTL_NODE
+SYSCTL_PROC(_net_inet_ip_dummynet_codel, OID_AUTO, target,
+ CTLTYPE_LONG | CTLFLAG_RW, NULL, 0,codel_sysctl_target_handler, "L",
+ "CoDel target in microsecond");
+
+SYSCTL_PROC(_net_inet_ip_dummynet_codel, OID_AUTO, interval,
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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