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Diffstat (limited to 'usr/local/share/protocols/tftp.pat')
-rw-r--r-- | usr/local/share/protocols/tftp.pat | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/usr/local/share/protocols/tftp.pat b/usr/local/share/protocols/tftp.pat new file mode 100644 index 0000000..e9f16f7 --- /dev/null +++ b/usr/local/share/protocols/tftp.pat @@ -0,0 +1,20 @@ +# TFTP - Trivial File Transfer Protocol - used for bootstrapping - RFC 1350 +# Pattern attributes: marginal veryfast fast +# Protocol groups: document_retrieval ietf_internet_standard +# Wiki: http://www.protocolinfo.org/wiki/TFTP +# +# usually runs on port 69 +# +# This pattern is unconfirmed. + +tftp +# The first packet from the initiating host should either be a Read Request +# or a Write Request. In the other direction, it should be data packet with +# block number one or an ACK with block number zero. We only attempt to match +# the initiating host's packets, because the only identifying features of +# the responses to them are two byte sequences (which isn't specific enough). +# (\x01|\x02) = Read Request or Write Request +# [ -~]* = the file name +# the rest = netascii|octet|mail (case insensitivity done by the kernel) + +^(\x01|\x02)[ -~]*(netascii|octet|mail) |