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| author |   Joonwoo Park <joonwpark81@gmail.com> | 2008-07-08 02:38:56 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-07-08 02:38:56 -0700 |
| commit | 4ad3f26162ece5aca3045fd45e15dd99acea4a0e (patch) | |
| tree | 05c0db40febdc89055f2572bc0cf42388f798ead /include/linux/netfilter | |
| parent | textsearch: convert kmalloc + memset to kzalloc (diff) | |
| download | linux-dev-4ad3f26162ece5aca3045fd45e15dd99acea4a0e.tar.xz linux-dev-4ad3f26162ece5aca3045fd45e15dd99acea4a0e.zip | |
netfilter: fix string extension for case insensitive pattern matching
The flag XT_STRING_FLAG_IGNORECASE indicates case insensitive string
matching. netfilter can find cmd.exe, Cmd.exe, cMd.exe and etc easily.
A new revision 1 was added, in the meantime invert of xt_string_info
was moved into flags as a flag. If revision is 1, The flag
XT_STRING_FLAG_INVERT indicates invert matching.
Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netfilter')
| -rw-r--r-- | include/linux/netfilter/xt_string.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/netfilter/xt_string.h b/include/linux/netfilter/xt_string.h index bb21dd1aee2d..8a6ba7bbef9f 100644 --- a/include/linux/netfilter/xt_string.h +++ b/include/linux/netfilter/xt_string.h @@ -4,6 +4,11 @@ #define XT_STRING_MAX_PATTERN_SIZE 128 #define XT_STRING_MAX_ALGO_NAME_SIZE 16 +enum { + XT_STRING_FLAG_INVERT = 0x01, + XT_STRING_FLAG_IGNORECASE = 0x02 +}; + struct xt_string_info { u_int16_t from_offset; @@ -11,7 +16,15 @@ struct xt_string_info char algo[XT_STRING_MAX_ALGO_NAME_SIZE]; char pattern[XT_STRING_MAX_PATTERN_SIZE]; u_int8_t patlen; - u_int8_t invert; + union { + struct { + u_int8_t invert; + } v0; + + struct { + u_int8_t flags; + } v1; + } u; /* Used internally by the kernel */ struct ts_config __attribute__((aligned(8))) *config; |