1b50b8a371
Along comes... xt_u32, a revamped ipt_u32 from POM-NG,
Plus:
* 2007-06-02: added ipv6 support
* 2007-06-05: uses kmalloc for the big buffer
* 2007-06-05: added inversion
* 2007-06-20: use skb_copy_bits() and get rid of the big buffer
and lock (suggested by Pablo Neira Ayuso)
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
41 lines
695 B
C
41 lines
695 B
C
#ifndef _XT_U32_H
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#define _XT_U32_H 1
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enum xt_u32_ops {
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XT_U32_AND,
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XT_U32_LEFTSH,
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XT_U32_RIGHTSH,
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XT_U32_AT,
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};
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struct xt_u32_location_element {
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u_int32_t number;
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u_int8_t nextop;
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};
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struct xt_u32_value_element {
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u_int32_t min;
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u_int32_t max;
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};
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/*
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* Any way to allow for an arbitrary number of elements?
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* For now, I settle with a limit of 10 each.
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*/
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#define XT_U32_MAXSIZE 10
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struct xt_u32_test {
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struct xt_u32_location_element location[XT_U32_MAXSIZE+1];
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struct xt_u32_value_element value[XT_U32_MAXSIZE+1];
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u_int8_t nnums;
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u_int8_t nvalues;
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};
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struct xt_u32 {
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struct xt_u32_test tests[XT_U32_MAXSIZE+1];
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u_int8_t ntests;
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u_int8_t invert;
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};
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#endif /* _XT_U32_H */
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