IP applet by Bastian Blank <waldi@debian.org>

git-svn-id: svn://busybox.net/trunk/busybox@5894 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 413 insertions, 0 deletions

diff --git a/networking/libiproute/linux/pkt_sched.h b/networking/libiproute/linux/pkt_sched.h
new file mode 100644
index 000000000..e174588f5
--- /dev/null
+++ b/networking/libiproute/linux/pkt_sched.h
@@ -0,0 +1,413 @@
+#ifndef __LINUX_PKT_SCHED_H
+#define __LINUX_PKT_SCHED_H
+
+/* Logical priority bands not depending on specific packet scheduler.
+   Every scheduler will map them to real traffic classes, if it has
+   no more precise mechanism to classify packets.
+
+   These numbers have no special meaning, though their coincidence
+   with obsolete IPv6 values is not occasional :-). New IPv6 drafts
+   preferred full anarchy inspired by diffserv group.
+
+   Note: TC_PRIO_BESTEFFORT does not mean that it is the most unhappy
+   class, actually, as rule it will be handled with more care than
+   filler or even bulk.
+ */
+
+#include <asm/types.h>
+
+#define TC_PRIO_BESTEFFORT              0
+#define TC_PRIO_FILLER                  1
+#define TC_PRIO_BULK                    2
+#define TC_PRIO_INTERACTIVE_BULK        4
+#define TC_PRIO_INTERACTIVE             6
+#define TC_PRIO_CONTROL                 7
+
+#define TC_PRIO_MAX                     15
+
+/* Generic queue statistics, available for all the elements.
+   Particular schedulers may have also their private records.
+ */
+
+struct tc_stats
+{
+        __u64   bytes;                  /* NUmber of enqueues bytes */
+        __u32   packets;                /* Number of enqueued packets   */
+        __u32   drops;                  /* Packets dropped because of lack of resources */
+        __u32   overlimits;             /* Number of throttle events when this
+                                         * flow goes out of allocated bandwidth */
+        __u32   bps;                    /* Current flow byte rate */
+        __u32   pps;                    /* Current flow packet rate */
+        __u32   qlen;
+        __u32   backlog;
+#ifdef __KERNEL__
+        spinlock_t *lock;
+#endif
+};
+
+struct tc_estimator
+{
+        char            interval;
+        unsigned char   ewma_log;
+};
+
+/* "Handles"
+   ---------
+
+    All the traffic control objects have 32bit identifiers, or "handles".
+
+    They can be considered as opaque numbers from user API viewpoint,
+    but actually they always consist of two fields: major and
+    minor numbers, which are interpreted by kernel specially,
+    that may be used by applications, though not recommended.
+
+    F.e. qdisc handles always have minor number equal to zero,
+    classes (or flows) have major equal to parent qdisc major, and
+    minor uniquely identifying class inside qdisc.
+
+    Macros to manipulate handles:
+ */
+
+#define TC_H_MAJ_MASK (0xFFFF0000U)
+#define TC_H_MIN_MASK (0x0000FFFFU)
+#define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
+#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
+#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
+
+#define TC_H_UNSPEC     (0U)
+#define TC_H_ROOT       (0xFFFFFFFFU)
+#define TC_H_INGRESS    (0xFFFFFFF1U)
+
+struct tc_ratespec
+{
+        unsigned char   cell_log;
+        unsigned char   __reserved;
+        unsigned short  feature;
+        short           addend;
+        unsigned short  mpu;
+        __u32           rate;
+};
+
+/* FIFO section */
+
+struct tc_fifo_qopt
+{
+        __u32   limit;  /* Queue length: bytes for bfifo, packets for pfifo */
+};
+
+/* PRIO section */
+
+#define TCQ_PRIO_BANDS  16
+
+struct tc_prio_qopt
+{
+        int     bands;                  /* Number of bands */
+        __u8    priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
+};
+
+/* CSZ section */
+
+struct tc_csz_qopt
+{
+        int             flows;          /* Maximal number of guaranteed flows */
+        unsigned char   R_log;          /* Fixed point position for round number */
+        unsigned char   delta_log;      /* Log of maximal managed time interval */
+        __u8            priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> CSZ band */
+};
+
+struct tc_csz_copt
+{
+        struct tc_ratespec slice;
+        struct tc_ratespec rate;
+        struct tc_ratespec peakrate;
+        __u32           limit;
+        __u32           buffer;
+        __u32           mtu;
+};
+
+enum
+{
+        TCA_CSZ_UNSPEC,
+        TCA_CSZ_PARMS,
+        TCA_CSZ_RTAB,
+        TCA_CSZ_PTAB,
+};
+
+/* TBF section */
+
+struct tc_tbf_qopt
+{
+        struct tc_ratespec rate;
+        struct tc_ratespec peakrate;
+        __u32           limit;
+        __u32           buffer;
+        __u32           mtu;
+};
+
+enum
+{
+        TCA_TBF_UNSPEC,
+        TCA_TBF_PARMS,
+        TCA_TBF_RTAB,
+        TCA_TBF_PTAB,
+};
+
+
+/* TEQL section */
+
+/* TEQL does not require any parameters */
+
+/* SFQ section */
+
+struct tc_sfq_qopt
+{
+        unsigned        quantum;        /* Bytes per round allocated to flow */
+        int             perturb_period; /* Period of hash perturbation */
+        __u32           limit;          /* Maximal packets in queue */
+        unsigned        divisor;        /* Hash divisor  */
+        unsigned        flows;          /* Maximal number of flows  */
+};
+
+/*
+ *  NOTE: limit, divisor and flows are hardwired to code at the moment.
+ *
+ *      limit=flows=128, divisor=1024;
+ *
+ *      The only reason for this is efficiency, it is possible
+ *      to change these parameters in compile time.
+ */
+
+/* RED section */
+
+enum
+{
+        TCA_RED_UNSPEC,
+        TCA_RED_PARMS,
+        TCA_RED_STAB,
+};
+
+struct tc_red_qopt
+{
+        __u32           limit;          /* HARD maximal queue length (bytes)    */
+        __u32           qth_min;        /* Min average length threshold (bytes) */
+        __u32           qth_max;        /* Max average length threshold (bytes) */
+        unsigned char   Wlog;           /* log(W)               */
+        unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
+        unsigned char   Scell_log;      /* cell size for idle damping */
+        unsigned char   flags;
+#define TC_RED_ECN      1
+};
+
+struct tc_red_xstats
+{
+        __u32           early;          /* Early drops */
+        __u32           pdrop;          /* Drops due to queue limits */
+        __u32           other;          /* Drops due to drop() calls */
+        __u32           marked;         /* Marked packets */
+};
+
+/* GRED section */
+
+#define MAX_DPs 16
+
+enum
+{
+       TCA_GRED_UNSPEC,
+       TCA_GRED_PARMS,
+       TCA_GRED_STAB,
+       TCA_GRED_DPS,
+};
+
+#define TCA_SET_OFF TCA_GRED_PARMS
+struct tc_gred_qopt
+{
+       __u32           limit;          /* HARD maximal queue length (bytes)    
+*/
+       __u32           qth_min;        /* Min average length threshold (bytes) 
+*/
+       __u32           qth_max;        /* Max average length threshold (bytes) 
+*/
+       __u32           DP;             /* upto 2^32 DPs */
+       __u32           backlog;        
+       __u32           qave;   
+       __u32           forced; 
+       __u32           early;  
+       __u32           other;  
+       __u32           pdrop;  
+
+       unsigned char   Wlog;           /* log(W)               */
+       unsigned char   Plog;           /* log(P_max/(qth_max-qth_min)) */
+       unsigned char   Scell_log;      /* cell size for idle damping */
+       __u8            prio;            /* prio of this VQ */
+       __u32    packets;
+       __u32    bytesin;
+};
+/* gred setup */
+struct tc_gred_sopt
+{
+       __u32           DPs;
+       __u32           def_DP;
+       __u8            grio;
+};
+
+/* HTB section */
+#define TC_HTB_NUMPRIO          4
+#define TC_HTB_MAXDEPTH         4
+
+struct tc_htb_opt
+{
+        struct tc_ratespec      rate;
+        struct tc_ratespec      ceil;
+        __u32   buffer;
+        __u32   cbuffer;
+        __u32   quantum;        /* out only */
+        __u32   level;          /* out only */
+        __u8    prio;
+        __u8    injectd;        /* inject class distance */
+        __u8    pad[2];
+};
+struct tc_htb_glob
+{
+        __u32 rate2quantum;     /* bps->quantum divisor */
+        __u32 defcls;           /* default class number */
+        __u32 use_dcache;       /* use dequeue cache ? */
+        __u32 debug;            /* debug flags */
+
+
+        /* stats */
+        __u32 deq_rate; /* dequeue rate */
+        __u32 utilz;    /* dequeue utilization */
+        __u32 trials;   /* deq_prio trials per dequeue */
+        __u32 dcache_hits;
+        __u32 direct_pkts; /* count of non shapped packets */
+};
+enum
+{
+        TCA_HTB_UNSPEC,
+        TCA_HTB_PARMS,
+        TCA_HTB_INIT,
+        TCA_HTB_CTAB,
+        TCA_HTB_RTAB,
+};
+struct tc_htb_xstats
+{
+        __u32 lends;
+        __u32 borrows;
+        __u32 giants;   /* too big packets (rate will not be accurate) */
+        __u32 injects;  /* how many times leaf used injected bw */      
+        __u32 tokens;
+        __u32 ctokens;
+};
+
+/* CBQ section */
+
+#define TC_CBQ_MAXPRIO          8
+#define TC_CBQ_MAXLEVEL         8
+#define TC_CBQ_DEF_EWMA         5
+
+struct tc_cbq_lssopt
+{
+        unsigned char   change;
+        unsigned char   flags;
+#define TCF_CBQ_LSS_BOUNDED     1
+#define TCF_CBQ_LSS_ISOLATED    2
+        unsigned char   ewma_log;
+        unsigned char   level;
+#define TCF_CBQ_LSS_FLAGS       1
+#define TCF_CBQ_LSS_EWMA        2
+#define TCF_CBQ_LSS_MAXIDLE     4
+#define TCF_CBQ_LSS_MINIDLE     8
+#define TCF_CBQ_LSS_OFFTIME     0x10
+#define TCF_CBQ_LSS_AVPKT       0x20
+        __u32           maxidle;
+        __u32           minidle;
+        __u32           offtime;
+        __u32           avpkt;
+};
+
+struct tc_cbq_wrropt
+{
+        unsigned char   flags;
+        unsigned char   priority;
+        unsigned char   cpriority;
+        unsigned char   __reserved;
+        __u32           allot;
+        __u32           weight;
+};
+
+struct tc_cbq_ovl
+{
+        unsigned char   strategy;
+#define TC_CBQ_OVL_CLASSIC      0
+#define TC_CBQ_OVL_DELAY        1
+#define TC_CBQ_OVL_LOWPRIO      2
+#define TC_CBQ_OVL_DROP         3
+#define TC_CBQ_OVL_RCLASSIC     4
+        unsigned char   priority2;
+        __u32           penalty;
+};
+
+struct tc_cbq_police
+{
+        unsigned char   police;
+        unsigned char   __res1;
+        unsigned short  __res2;
+};
+
+struct tc_cbq_fopt
+{
+        __u32           split;
+        __u32           defmap;
+        __u32           defchange;
+};
+
+struct tc_cbq_xstats
+{
+        __u32           borrows;
+        __u32           overactions;
+        __s32           avgidle;
+        __s32           undertime;
+};
+
+enum
+{
+        TCA_CBQ_UNSPEC,
+        TCA_CBQ_LSSOPT,
+        TCA_CBQ_WRROPT,
+        TCA_CBQ_FOPT,
+        TCA_CBQ_OVL_STRATEGY,
+        TCA_CBQ_RATE,
+        TCA_CBQ_RTAB,
+        TCA_CBQ_POLICE,
+};
+
+#define TCA_CBQ_MAX     TCA_CBQ_POLICE
+
+/* dsmark section */
+
+enum {
+        TCA_DSMARK_UNSPEC,
+        TCA_DSMARK_INDICES,
+        TCA_DSMARK_DEFAULT_INDEX,
+        TCA_DSMARK_SET_TC_INDEX,
+        TCA_DSMARK_MASK,
+        TCA_DSMARK_VALUE
+};
+
+#define TCA_DSMARK_MAX TCA_DSMARK_VALUE
+
+/* ATM  section */
+
+enum {
+        TCA_ATM_UNSPEC,
+        TCA_ATM_FD,             /* file/socket descriptor */
+        TCA_ATM_PTR,            /* pointer to descriptor - later */
+        TCA_ATM_HDR,            /* LL header */
+        TCA_ATM_EXCESS,         /* excess traffic class (0 for CLP)  */
+        TCA_ATM_ADDR,           /* PVC address (for output only) */
+        TCA_ATM_STATE           /* VC state (ATM_VS_*; for output only) */
+};
+
+#define TCA_ATM_MAX     TCA_ATM_STATE
+
+#endif