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

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