b4e9b520ca
Support masking the nfmark value before the search. The mask value is global for all filters contained in one instance. It can only be set when a new instance is created, all filters must specify the same mask. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
430 lines
8.1 KiB
C
430 lines
8.1 KiB
C
#ifndef __LINUX_PKT_CLS_H
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#define __LINUX_PKT_CLS_H
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#include <linux/pkt_sched.h>
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/* I think i could have done better macros ; for now this is stolen from
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* some arch/mips code - jhs
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*/
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#define _TC_MAKE32(x) ((x))
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#define _TC_MAKEMASK1(n) (_TC_MAKE32(1) << _TC_MAKE32(n))
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#define _TC_MAKEMASK(v,n) (_TC_MAKE32((_TC_MAKE32(1)<<(v))-1) << _TC_MAKE32(n))
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#define _TC_MAKEVALUE(v,n) (_TC_MAKE32(v) << _TC_MAKE32(n))
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#define _TC_GETVALUE(v,n,m) ((_TC_MAKE32(v) & _TC_MAKE32(m)) >> _TC_MAKE32(n))
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/* verdict bit breakdown
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*
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bit 0: when set -> this packet has been munged already
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bit 1: when set -> It is ok to munge this packet
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bit 2,3,4,5: Reclassify counter - sort of reverse TTL - if exceeded
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assume loop
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bit 6,7: Where this packet was last seen
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0: Above the transmit example at the socket level
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1: on the Ingress
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2: on the Egress
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bit 8: when set --> Request not to classify on ingress.
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bits 9,10,11: redirect counter - redirect TTL. Loop avoidance
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*
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* */
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#define TC_MUNGED _TC_MAKEMASK1(0)
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#define SET_TC_MUNGED(v) ( TC_MUNGED | (v & ~TC_MUNGED))
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#define CLR_TC_MUNGED(v) ( v & ~TC_MUNGED)
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#define TC_OK2MUNGE _TC_MAKEMASK1(1)
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#define SET_TC_OK2MUNGE(v) ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE))
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#define CLR_TC_OK2MUNGE(v) ( v & ~TC_OK2MUNGE)
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#define S_TC_VERD _TC_MAKE32(2)
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#define M_TC_VERD _TC_MAKEMASK(4,S_TC_VERD)
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#define G_TC_VERD(x) _TC_GETVALUE(x,S_TC_VERD,M_TC_VERD)
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#define V_TC_VERD(x) _TC_MAKEVALUE(x,S_TC_VERD)
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#define SET_TC_VERD(v,n) ((V_TC_VERD(n)) | (v & ~M_TC_VERD))
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#define S_TC_FROM _TC_MAKE32(6)
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#define M_TC_FROM _TC_MAKEMASK(2,S_TC_FROM)
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#define G_TC_FROM(x) _TC_GETVALUE(x,S_TC_FROM,M_TC_FROM)
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#define V_TC_FROM(x) _TC_MAKEVALUE(x,S_TC_FROM)
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#define SET_TC_FROM(v,n) ((V_TC_FROM(n)) | (v & ~M_TC_FROM))
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#define AT_STACK 0x0
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#define AT_INGRESS 0x1
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#define AT_EGRESS 0x2
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#define TC_NCLS _TC_MAKEMASK1(8)
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#define SET_TC_NCLS(v) ( TC_NCLS | (v & ~TC_NCLS))
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#define CLR_TC_NCLS(v) ( v & ~TC_NCLS)
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#define S_TC_RTTL _TC_MAKE32(9)
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#define M_TC_RTTL _TC_MAKEMASK(3,S_TC_RTTL)
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#define G_TC_RTTL(x) _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL)
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#define V_TC_RTTL(x) _TC_MAKEVALUE(x,S_TC_RTTL)
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#define SET_TC_RTTL(v,n) ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL))
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#define S_TC_AT _TC_MAKE32(12)
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#define M_TC_AT _TC_MAKEMASK(2,S_TC_AT)
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#define G_TC_AT(x) _TC_GETVALUE(x,S_TC_AT,M_TC_AT)
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#define V_TC_AT(x) _TC_MAKEVALUE(x,S_TC_AT)
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#define SET_TC_AT(v,n) ((V_TC_AT(n)) | (v & ~M_TC_AT))
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/* Action attributes */
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enum
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{
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TCA_ACT_UNSPEC,
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TCA_ACT_KIND,
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TCA_ACT_OPTIONS,
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TCA_ACT_INDEX,
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TCA_ACT_STATS,
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__TCA_ACT_MAX
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};
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#define TCA_ACT_MAX __TCA_ACT_MAX
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#define TCA_OLD_COMPAT (TCA_ACT_MAX+1)
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#define TCA_ACT_MAX_PRIO 32
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#define TCA_ACT_BIND 1
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#define TCA_ACT_NOBIND 0
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#define TCA_ACT_UNBIND 1
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#define TCA_ACT_NOUNBIND 0
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#define TCA_ACT_REPLACE 1
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#define TCA_ACT_NOREPLACE 0
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#define MAX_REC_LOOP 4
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#define MAX_RED_LOOP 4
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#define TC_ACT_UNSPEC (-1)
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#define TC_ACT_OK 0
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#define TC_ACT_RECLASSIFY 1
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#define TC_ACT_SHOT 2
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#define TC_ACT_PIPE 3
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#define TC_ACT_STOLEN 4
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#define TC_ACT_QUEUED 5
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#define TC_ACT_REPEAT 6
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#define TC_ACT_JUMP 0x10000000
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/* Action type identifiers*/
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enum
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{
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TCA_ID_UNSPEC=0,
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TCA_ID_POLICE=1,
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/* other actions go here */
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__TCA_ID_MAX=255
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};
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#define TCA_ID_MAX __TCA_ID_MAX
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struct tc_police
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{
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__u32 index;
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int action;
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#define TC_POLICE_UNSPEC TC_ACT_UNSPEC
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#define TC_POLICE_OK TC_ACT_OK
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#define TC_POLICE_RECLASSIFY TC_ACT_RECLASSIFY
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#define TC_POLICE_SHOT TC_ACT_SHOT
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#define TC_POLICE_PIPE TC_ACT_PIPE
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__u32 limit;
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__u32 burst;
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__u32 mtu;
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struct tc_ratespec rate;
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struct tc_ratespec peakrate;
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int refcnt;
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int bindcnt;
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__u32 capab;
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};
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struct tcf_t
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{
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__u64 install;
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__u64 lastuse;
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__u64 expires;
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};
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struct tc_cnt
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{
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int refcnt;
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int bindcnt;
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};
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#define tc_gen \
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__u32 index; \
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__u32 capab; \
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int action; \
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int refcnt; \
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int bindcnt
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enum
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{
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TCA_POLICE_UNSPEC,
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TCA_POLICE_TBF,
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TCA_POLICE_RATE,
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TCA_POLICE_PEAKRATE,
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TCA_POLICE_AVRATE,
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TCA_POLICE_RESULT,
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__TCA_POLICE_MAX
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#define TCA_POLICE_RESULT TCA_POLICE_RESULT
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};
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#define TCA_POLICE_MAX (__TCA_POLICE_MAX - 1)
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/* U32 filters */
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#define TC_U32_HTID(h) ((h)&0xFFF00000)
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#define TC_U32_USERHTID(h) (TC_U32_HTID(h)>>20)
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#define TC_U32_HASH(h) (((h)>>12)&0xFF)
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#define TC_U32_NODE(h) ((h)&0xFFF)
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#define TC_U32_KEY(h) ((h)&0xFFFFF)
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#define TC_U32_UNSPEC 0
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#define TC_U32_ROOT (0xFFF00000)
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enum
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{
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TCA_U32_UNSPEC,
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TCA_U32_CLASSID,
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TCA_U32_HASH,
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TCA_U32_LINK,
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TCA_U32_DIVISOR,
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TCA_U32_SEL,
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TCA_U32_POLICE,
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TCA_U32_ACT,
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TCA_U32_INDEV,
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TCA_U32_PCNT,
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TCA_U32_MARK,
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__TCA_U32_MAX
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};
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#define TCA_U32_MAX (__TCA_U32_MAX - 1)
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struct tc_u32_key
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{
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__u32 mask;
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__u32 val;
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int off;
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int offmask;
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};
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struct tc_u32_sel
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{
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unsigned char flags;
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unsigned char offshift;
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unsigned char nkeys;
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__u16 offmask;
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__u16 off;
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short offoff;
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short hoff;
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__u32 hmask;
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struct tc_u32_key keys[0];
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};
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struct tc_u32_mark
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{
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__u32 val;
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__u32 mask;
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__u32 success;
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};
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struct tc_u32_pcnt
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{
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__u64 rcnt;
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__u64 rhit;
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__u64 kcnts[0];
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};
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/* Flags */
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#define TC_U32_TERMINAL 1
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#define TC_U32_OFFSET 2
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#define TC_U32_VAROFFSET 4
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#define TC_U32_EAT 8
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#define TC_U32_MAXDEPTH 8
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/* RSVP filter */
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enum
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{
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TCA_RSVP_UNSPEC,
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TCA_RSVP_CLASSID,
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TCA_RSVP_DST,
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TCA_RSVP_SRC,
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TCA_RSVP_PINFO,
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TCA_RSVP_POLICE,
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TCA_RSVP_ACT,
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__TCA_RSVP_MAX
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};
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#define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1 )
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struct tc_rsvp_gpi
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{
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__u32 key;
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__u32 mask;
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int offset;
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};
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struct tc_rsvp_pinfo
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{
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struct tc_rsvp_gpi dpi;
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struct tc_rsvp_gpi spi;
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__u8 protocol;
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__u8 tunnelid;
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__u8 tunnelhdr;
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__u8 pad;
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};
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/* ROUTE filter */
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enum
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{
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TCA_ROUTE4_UNSPEC,
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TCA_ROUTE4_CLASSID,
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TCA_ROUTE4_TO,
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TCA_ROUTE4_FROM,
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TCA_ROUTE4_IIF,
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TCA_ROUTE4_POLICE,
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TCA_ROUTE4_ACT,
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__TCA_ROUTE4_MAX
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};
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#define TCA_ROUTE4_MAX (__TCA_ROUTE4_MAX - 1)
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/* FW filter */
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enum
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{
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TCA_FW_UNSPEC,
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TCA_FW_CLASSID,
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TCA_FW_POLICE,
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TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */
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TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
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TCA_FW_MASK,
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__TCA_FW_MAX
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};
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#define TCA_FW_MAX (__TCA_FW_MAX - 1)
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/* TC index filter */
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enum
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{
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TCA_TCINDEX_UNSPEC,
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TCA_TCINDEX_HASH,
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TCA_TCINDEX_MASK,
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TCA_TCINDEX_SHIFT,
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TCA_TCINDEX_FALL_THROUGH,
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TCA_TCINDEX_CLASSID,
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TCA_TCINDEX_POLICE,
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TCA_TCINDEX_ACT,
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__TCA_TCINDEX_MAX
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};
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#define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1)
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/* Basic filter */
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enum
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{
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TCA_BASIC_UNSPEC,
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TCA_BASIC_CLASSID,
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TCA_BASIC_EMATCHES,
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TCA_BASIC_ACT,
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TCA_BASIC_POLICE,
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__TCA_BASIC_MAX
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};
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#define TCA_BASIC_MAX (__TCA_BASIC_MAX - 1)
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/* Extended Matches */
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struct tcf_ematch_tree_hdr
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{
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__u16 nmatches;
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__u16 progid;
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};
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enum
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{
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TCA_EMATCH_TREE_UNSPEC,
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TCA_EMATCH_TREE_HDR,
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TCA_EMATCH_TREE_LIST,
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__TCA_EMATCH_TREE_MAX
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};
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#define TCA_EMATCH_TREE_MAX (__TCA_EMATCH_TREE_MAX - 1)
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struct tcf_ematch_hdr
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{
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__u16 matchid;
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__u16 kind;
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__u16 flags;
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__u16 pad; /* currently unused */
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};
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/* 0 1
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
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* +-----------------------+-+-+---+
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* | Unused |S|I| R |
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* +-----------------------+-+-+---+
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*
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* R(2) ::= relation to next ematch
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* where: 0 0 END (last ematch)
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* 0 1 AND
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* 1 0 OR
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* 1 1 Unused (invalid)
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* I(1) ::= invert result
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* S(1) ::= simple payload
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*/
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#define TCF_EM_REL_END 0
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#define TCF_EM_REL_AND (1<<0)
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#define TCF_EM_REL_OR (1<<1)
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#define TCF_EM_INVERT (1<<2)
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#define TCF_EM_SIMPLE (1<<3)
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#define TCF_EM_REL_MASK 3
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#define TCF_EM_REL_VALID(v) (((v) & TCF_EM_REL_MASK) != TCF_EM_REL_MASK)
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enum
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{
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TCF_LAYER_LINK,
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TCF_LAYER_NETWORK,
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TCF_LAYER_TRANSPORT,
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__TCF_LAYER_MAX
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};
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#define TCF_LAYER_MAX (__TCF_LAYER_MAX - 1)
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/* Ematch type assignments
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* 1..32767 Reserved for ematches inside kernel tree
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* 32768..65535 Free to use, not reliable
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*/
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enum
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{
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TCF_EM_CONTAINER,
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TCF_EM_CMP,
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TCF_EM_NBYTE,
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TCF_EM_U32,
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TCF_EM_META,
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TCF_EM_TEXT,
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__TCF_EM_MAX
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};
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enum
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{
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TCF_EM_PROG_TC
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};
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enum
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{
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TCF_EM_OPND_EQ,
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TCF_EM_OPND_GT,
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TCF_EM_OPND_LT
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};
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#endif
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