add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/samples/pktgen/pktgen_sample01_simple.sh
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@@ -22,13 +22,21 @@
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 # Example enforce param "-m" for dst_mac
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 [ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac"
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 [ -z "$COUNT" ]   && COUNT="100000" # Zero means indefinitely
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+if [ -n "$DEST_IP" ]; then
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+    validate_addr${IP6} $DEST_IP
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+    read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP)
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+fi
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+if [ -n "$DST_PORT" ]; then
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+    read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
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+    validate_ports $UDP_DST_MIN $UDP_DST_MAX
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+fi
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 # Base Config
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 DELAY="0"        # Zero means max speed
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 # Flow variation random source port between min and max
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-UDP_MIN=9
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-UDP_MAX=109
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+UDP_SRC_MIN=9
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+UDP_SRC_MAX=109
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 # General cleanup everything since last run
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 # (especially important if other threads were configured by other scripts)
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@@ -57,12 +65,20 @@
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 # Destination
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 pg_set $DEV "dst_mac $DST_MAC"
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-pg_set $DEV "dst$IP6 $DEST_IP"
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+pg_set $DEV "dst${IP6}_min $DST_MIN"
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+pg_set $DEV "dst${IP6}_max $DST_MAX"
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+
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+if [ -n "$DST_PORT" ]; then
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+    # Single destination port or random port range
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+    pg_set $DEV "flag UDPDST_RND"
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+    pg_set $DEV "udp_dst_min $UDP_DST_MIN"
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+    pg_set $DEV "udp_dst_max $UDP_DST_MAX"
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+fi
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 # Setup random UDP port src range
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 pg_set $DEV "flag UDPSRC_RND"
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-pg_set $DEV "udp_src_min $UDP_MIN"
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-pg_set $DEV "udp_src_max $UDP_MAX"
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+pg_set $DEV "udp_src_min $UDP_SRC_MIN"
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+pg_set $DEV "udp_src_max $UDP_SRC_MAX"
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 # start_run
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 echo "Running... ctrl^C to stop" >&2