Add handler for /size/<number> #1
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This handler will send an output of <number> bytes (all `x`s) back to the client. This can be used to test return path of fragmented packets. Signed-off-by: Yongkun Gui <[email protected]>
This was referenced Jun 22, 2021
pchaigno
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Jul 9, 2021
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It seems some additional filtering could be useful on input values:
2021/07/09 14:09:55 Listening on: ":69"
2021/07/09 14:10:12 Read "size/-1" requested from 127.0.0.1:42234
panic: strings: negative Repeat count
goroutine 8 [running]:
strings.Repeat(0x5e034a, 0x1, 0xffffffffffffffff, 0x0, 0x0)
/usr/local/go/src/strings/strings.go:533 +0x5aa
main.echoHandler(0x61d960, 0xc00000e100)
/go/src/app/main.go:64 +0x2b5
pack.ag/tftp.ReadHandlerFunc.ServeTFTP(0x5ebd98, 0x61d960, 0xc00000e100)
/go/pkg/mod/pack.ag/[email protected]/handlers.go:201 +0x3a
pack.ag/tftp.(*Server).dispatchReadRequest(0xc0000da000, 0xc00000e0a0, 0xc0000561e0)
/go/pkg/mod/pack.ag/[email protected]/server.go:220 +0x384
created by pack.ag/tftp.(*Server).connManager
/go/pkg/mod/pack.ag/[email protected]/server.go:147 +0x1ef
Also:
$ curl tftp://127.0.0.1:69/size/0
curl: (71) invalid tsize -:0:- value in OACK packet
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This handler will send an output of bytes (all
xs) back tothe client. This can be used to test return path of fragmented packets.
Signed-off-by: Yongkun Gui [email protected]