diff options
-rw-r--r-- | extensions/libxt_string.man | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/extensions/libxt_string.man b/extensions/libxt_string.man index efdda492..bdeb0a62 100644 --- a/extensions/libxt_string.man +++ b/extensions/libxt_string.man @@ -7,13 +7,10 @@ Select the pattern matching strategy. (bm = Boyer-Moore, kmp = Knuth-Pratt-Morri Set the offset from which it starts looking for any matching. If not passed, default is 0. .TP \fB\-\-to\fP \fIoffset\fP -Set the offset up to which should be scanned. If the pattern does not start -within this offset, it is not considered a match. +Set the offset up to which should be scanned. That is, byte \fIoffset\fP +(counting from 0) is the last one that is scanned and the maximum position of +\fIpattern\fP's last character. If not passed, default is the packet size. -A second function of this parameter is instructing the kernel how much data -from the packet should be provided. With non-linear skbuffs (e.g. due to -fragmentation), a pattern extending past this offset may not be found. Also see -the related note below about Boyer-Moore algorithm in these cases. .TP [\fB!\fP] \fB\-\-string\fP \fIpattern\fP Matches the given pattern. |