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https://github.com/bol-van/zapret.git
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36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
# this custom script runs desync to all discord media packets
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# can override in config :
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NFQWS_OPT_DESYNC_DISCORD_MEDIA="${NFQWS_OPT_DESYNC_DISCORD_MEDIA:---dpi-desync=fake}"
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DISCORD_MEDIA_PORT_RANGE="${DISCORD_MEDIA_PORT_RANGE:-50000-50099}"
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alloc_dnum DNUM_DISCORD_MEDIA
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alloc_qnum QNUM_DISCORD_MEDIA
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zapret_custom_daemons()
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{
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# $1 - 1 - add, 0 - stop
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local opt="--qnum=$QNUM_DISCORD_MEDIA $NFQWS_OPT_DESYNC_DISCORD_MEDIA"
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do_nfqws $1 $DNUM_DISCORD_MEDIA "$opt"
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}
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# size = 156 (8 udp header + 148 payload) && payload starts with 0x01000000
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zapret_custom_firewall()
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{
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# $1 - 1 - run, 0 - stop
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local DISABLE_IPV6=1
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local port_range=$(replace_char - : $DISCORD_MEDIA_PORT_RANGE)
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local f="-p udp --dport $port_range -m u32 --u32"
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# this is simplified test to skip writing monstrous rule. instead of checking 64 bytes for zeroes only check 2 dwords for zero
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fw_nfqws_post $1 "$f 0>>22&0x3C@4>>16=0x52&&0>>22&0x3C@8=0x00010046&&0>>22&0x3C@16=0&&0>>22&0x3C@76=0" '' $QNUM_DISCORD_MEDIA
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}
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zapret_custom_firewall_nft()
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{
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# stop logic is not required
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local DISABLE_IPV6=1
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local f="udp dport $DISCORD_MEDIA_PORT_RANGE udp length == 82 @ih,0,32 0x00010046 @ih,64,128 0x00000000000000000000000000000000 @ih,192,128 0x00000000000000000000000000000000 @ih,320,128 0x00000000000000000000000000000000 @ih,448,128 0x00000000000000000000000000000000"
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nft_fw_nfqws_post "$f" '' $QNUM_DISCORD_MEDIA
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}
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