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From 3d016b2ca5862b3f47da5b28aca43bd96d5c3c49 Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Fri, 11 Aug 2017 11:13:26 +0200
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Subject: [PATCH] tc-simple: Fix documentation
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1477523
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Upstream Status: iproute2.git commit e2a055dd23f0e
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commit e2a055dd23f0e7527a987c24687cb6b0b86f0cde
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Author: Phil Sutter <phil@nwl.cc>
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Date: Thu Aug 3 17:00:51 2017 +0200
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tc-simple: Fix documentation
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- CONTROL has to come last, otherwise 'index' applies to gact and not
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simple itself.
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- Man page wasn't updated to reflect syntax changes.
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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---
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man/man8/tc-simple.8 | 29 ++++++++++++++++++++++++++---
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tc/m_simple.c | 4 ++--
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2 files changed, 28 insertions(+), 5 deletions(-)
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diff --git a/man/man8/tc-simple.8 b/man/man8/tc-simple.8
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index 2206dc3b88614..7363ab563e189 100644
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--- a/man/man8/tc-simple.8
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+++ b/man/man8/tc-simple.8
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@@ -6,15 +6,37 @@ simple - basic example action
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.in +8
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.ti -8
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.BR tc " ... " "action simple"
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-.I STRING
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+[
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+.BI sdata " STRING"
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+] [
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+.BI index " INDEX"
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+] [
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+.I CONTROL
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+]
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+
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+.ti -8
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+.IR CONTROL " := {"
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+.BR reclassify " | " pipe " | " drop " | " continue " | " ok " }"
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+
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.SH DESCRIPTION
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This is a pedagogical example rather than an actually useful action. Upon every access, it prints the given
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.I STRING
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which may be of arbitrary length.
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.SH OPTIONS
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.TP
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-.I STRING
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+.BI sdata " STRING"
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The actual string to print.
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+.TP
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+.BI index " INDEX"
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+Optional action index value.
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+.TP
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+.I CONTROL
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+Indicate how
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+.B tc
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+should proceed after executing the action. For a description of the possible
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+.I CONTROL
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+values, see
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+.BR tc-actions (8).
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.SH EXAMPLES
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The following example makes the kernel yell "Incoming ICMP!" every time it sees
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an incoming ICMP on eth0. Steps are:
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@@ -36,7 +58,7 @@ display stats again and observe increment by 1
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.EX
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hadi@noma1:$ tc qdisc add dev eth0 ingress
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hadi@noma1:$tc filter add dev eth0 parent ffff: protocol ip prio 5 \\
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- u32 match ip protocol 1 0xff flowid 1:1 action simple "Incoming ICMP"
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+ u32 match ip protocol 1 0xff flowid 1:1 action simple sdata "Incoming ICMP"
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hadi@noma1:$ sudo tc -s filter ls dev eth0 parent ffff:
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filter protocol ip pref 5 u32
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@@ -74,3 +96,4 @@ display stats again and observe increment by 1
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.EE
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.SH SEE ALSO
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.BR tc (8)
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+.BR tc-actions (8)
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diff --git a/tc/m_simple.c b/tc/m_simple.c
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index 3a8bd916d3bfb..ab633849f7b45 100644
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--- a/tc/m_simple.c
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+++ b/tc/m_simple.c
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@@ -81,10 +81,10 @@
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#endif
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static void explain(void)
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{
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- fprintf(stderr, "Usage:... simple [sdata STRING] [CONTROL] [index INDEX]\n");
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+ fprintf(stderr, "Usage:... simple [sdata STRING] [index INDEX] [CONTROL]\n");
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fprintf(stderr, "\tSTRING being an arbitrary string\n"
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- "\tCONTROL := reclassify|pipe|drop|continue|ok\n"
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"\tINDEX := optional index value used\n");
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+ "\tCONTROL := reclassify|pipe|drop|continue|ok\n"
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}
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static void usage(void)
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--
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2.21.0
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