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 <ygui@google.com>
This was referenced Jun 22, 2021
pchaigno
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Jul 9, 2021
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Sorry for the delay to review. Few people receive notifications for pull requests opened on these small repositories, so it's best to ping us via Slack.
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/tftp@v1.0.0/handlers.go:201 +0x3a
pack.ag/tftp.(*Server).dispatchReadRequest(0xc0000da000, 0xc00000e0a0, 0xc0000561e0)
/go/pkg/mod/pack.ag/tftp@v1.0.0/server.go:220 +0x384
created by pack.ag/tftp.(*Server).connManager
/go/pkg/mod/pack.ag/tftp@v1.0.0/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 ygui@google.com