118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/*
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* netlink/route/tc.h Traffic Control
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2003-2011 Thomas Graf <tgraf@suug.ch>
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*/
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#ifndef NETLINK_TC_H_
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#define NETLINK_TC_H_
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#include <netlink/netlink.h>
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#include <netlink/cache.h>
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#include <netlink/data.h>
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#include <netlink/route/link.h>
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#include <linux/pkt_sched.h>
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#include <linux/pkt_cls.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum rtnl_tc_type {
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RTNL_TC_TYPE_QDISC,
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RTNL_TC_TYPE_CLASS,
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RTNL_TC_TYPE_CLS,
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RTNL_TC_TYPE_ACT,
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__RTNL_TC_TYPE_MAX,
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};
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#define RTNL_TC_TYPE_MAX (__RTNL_TC_TYPE_MAX - 1)
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/**
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* Compute tc handle based on major and minor parts
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* @ingroup tc
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*/
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#define TC_HANDLE(maj, min) (TC_H_MAJ((maj) << 16) | TC_H_MIN(min))
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/**
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* Traffic control object
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* @ingroup tc
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*/
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struct rtnl_tc;
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/**
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* Macro to cast qdisc/class/classifier to tc object
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* @ingroup tc
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*
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* @code
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* rtnl_tc_set_mpu(TC_CAST(qdisc), 40);
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* @endcode
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*/
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#define TC_CAST(ptr) ((struct rtnl_tc *) (ptr))
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/**
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* Traffic control statistical identifier
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* @ingroup tc
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*
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* @code
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* uint64_t n = rtnl_tc_get_stat(TC_CAST(class), RTNL_TC_PACKETS);
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* @endcode
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*/
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enum rtnl_tc_stat {
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RTNL_TC_PACKETS, /**< Number of packets seen */
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RTNL_TC_BYTES, /**< Total bytes seen */
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RTNL_TC_RATE_BPS, /**< Current bits/s (rate estimator) */
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RTNL_TC_RATE_PPS, /**< Current packet/s (rate estimator) */
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RTNL_TC_QLEN, /**< Current queue length */
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RTNL_TC_BACKLOG, /**< Current backlog length */
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RTNL_TC_DROPS, /**< Total number of packets dropped */
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RTNL_TC_REQUEUES, /**< Total number of requeues */
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RTNL_TC_OVERLIMITS, /**< Total number of overlimits */
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__RTNL_TC_STATS_MAX,
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};
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#define RTNL_TC_STATS_MAX (__RTNL_TC_STATS_MAX - 1)
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extern void rtnl_tc_set_ifindex(struct rtnl_tc *, int);
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extern int rtnl_tc_get_ifindex(struct rtnl_tc *);
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extern void rtnl_tc_set_link(struct rtnl_tc *, struct rtnl_link *);
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extern struct rtnl_link *rtnl_tc_get_link(struct rtnl_tc *);
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extern void rtnl_tc_set_mtu(struct rtnl_tc *, uint32_t);
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extern uint32_t rtnl_tc_get_mtu(struct rtnl_tc *);
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extern void rtnl_tc_set_mpu(struct rtnl_tc *, uint32_t);
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extern uint32_t rtnl_tc_get_mpu(struct rtnl_tc *);
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extern void rtnl_tc_set_overhead(struct rtnl_tc *, uint32_t);
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extern uint32_t rtnl_tc_get_overhead(struct rtnl_tc *);
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extern void rtnl_tc_set_linktype(struct rtnl_tc *, uint32_t);
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extern uint32_t rtnl_tc_get_linktype(struct rtnl_tc *);
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extern void rtnl_tc_set_handle(struct rtnl_tc *, uint32_t);
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extern uint32_t rtnl_tc_get_handle(struct rtnl_tc *);
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extern void rtnl_tc_set_parent(struct rtnl_tc *, uint32_t);
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extern uint32_t rtnl_tc_get_parent(struct rtnl_tc *);
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extern int rtnl_tc_set_kind(struct rtnl_tc *, const char *);
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extern char * rtnl_tc_get_kind(struct rtnl_tc *);
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extern uint64_t rtnl_tc_get_stat(struct rtnl_tc *, enum rtnl_tc_stat);
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extern char * rtnl_tc_stat2str(enum rtnl_tc_stat, char *, size_t);
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extern int rtnl_tc_str2stat(const char *);
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extern int rtnl_tc_calc_txtime(int, int);
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extern int rtnl_tc_calc_bufsize(int, int);
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extern int rtnl_tc_calc_cell_log(int);
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extern int rtnl_tc_read_classid_file(void);
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extern char * rtnl_tc_handle2str(uint32_t, char *, size_t);
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extern int rtnl_tc_str2handle(const char *, uint32_t *);
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extern int rtnl_classid_generate(const char *, uint32_t *,
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uint32_t);
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#ifdef __cplusplus
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}
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#endif
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#endif
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