1 /* 2 * netlink/route/tc.h Traffic Control 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation version 2.1 7 * of the License. 8 * 9 * Copyright (c) 2003-2011 Thomas Graf <tgraf (at) suug.ch> 10 */ 11 12 #ifndef NETLINK_TC_H_ 13 #define NETLINK_TC_H_ 14 15 #include <netlink/netlink.h> 16 #include <netlink/cache.h> 17 #include <netlink/data.h> 18 #include <netlink/route/link.h> 19 #include <linux/pkt_sched.h> 20 #include <linux/pkt_cls.h> 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 enum rtnl_tc_type { 27 RTNL_TC_TYPE_QDISC, 28 RTNL_TC_TYPE_CLASS, 29 RTNL_TC_TYPE_CLS, 30 RTNL_TC_TYPE_ACT, 31 __RTNL_TC_TYPE_MAX, 32 }; 33 34 #define RTNL_TC_TYPE_MAX (__RTNL_TC_TYPE_MAX - 1) 35 36 /** 37 * Compute tc handle based on major and minor parts 38 * @ingroup tc 39 */ 40 #define TC_HANDLE(maj, min) (TC_H_MAJ((maj) << 16) | TC_H_MIN(min)) 41 42 /** 43 * Traffic control object 44 * @ingroup tc 45 */ 46 struct rtnl_tc; 47 48 /** 49 * Macro to cast qdisc/class/classifier to tc object 50 * @ingroup tc 51 * 52 * @code 53 * rtnl_tc_set_mpu(TC_CAST(qdisc), 40); 54 * @endcode 55 */ 56 #define TC_CAST(ptr) ((struct rtnl_tc *) (ptr)) 57 58 /** 59 * Traffic control statistical identifier 60 * @ingroup tc 61 * 62 * @code 63 * uint64_t n = rtnl_tc_get_stat(TC_CAST(class), RTNL_TC_PACKETS); 64 * @endcode 65 */ 66 enum rtnl_tc_stat { 67 RTNL_TC_PACKETS, /**< Number of packets seen */ 68 RTNL_TC_BYTES, /**< Total bytes seen */ 69 RTNL_TC_RATE_BPS, /**< Current bits/s (rate estimator) */ 70 RTNL_TC_RATE_PPS, /**< Current packet/s (rate estimator) */ 71 RTNL_TC_QLEN, /**< Current queue length */ 72 RTNL_TC_BACKLOG, /**< Current backlog length */ 73 RTNL_TC_DROPS, /**< Total number of packets dropped */ 74 RTNL_TC_REQUEUES, /**< Total number of requeues */ 75 RTNL_TC_OVERLIMITS, /**< Total number of overlimits */ 76 __RTNL_TC_STATS_MAX, 77 }; 78 79 #define RTNL_TC_STATS_MAX (__RTNL_TC_STATS_MAX - 1) 80 81 extern void rtnl_tc_set_ifindex(struct rtnl_tc *, int); 82 extern int rtnl_tc_get_ifindex(struct rtnl_tc *); 83 extern void rtnl_tc_set_link(struct rtnl_tc *, struct rtnl_link *); 84 extern struct rtnl_link *rtnl_tc_get_link(struct rtnl_tc *); 85 extern void rtnl_tc_set_mtu(struct rtnl_tc *, uint32_t); 86 extern uint32_t rtnl_tc_get_mtu(struct rtnl_tc *); 87 extern void rtnl_tc_set_mpu(struct rtnl_tc *, uint32_t); 88 extern uint32_t rtnl_tc_get_mpu(struct rtnl_tc *); 89 extern void rtnl_tc_set_overhead(struct rtnl_tc *, uint32_t); 90 extern uint32_t rtnl_tc_get_overhead(struct rtnl_tc *); 91 extern void rtnl_tc_set_linktype(struct rtnl_tc *, uint32_t); 92 extern uint32_t rtnl_tc_get_linktype(struct rtnl_tc *); 93 extern void rtnl_tc_set_handle(struct rtnl_tc *, uint32_t); 94 extern uint32_t rtnl_tc_get_handle(struct rtnl_tc *); 95 extern void rtnl_tc_set_parent(struct rtnl_tc *, uint32_t); 96 extern uint32_t rtnl_tc_get_parent(struct rtnl_tc *); 97 extern int rtnl_tc_set_kind(struct rtnl_tc *, const char *); 98 extern char * rtnl_tc_get_kind(struct rtnl_tc *); 99 extern uint64_t rtnl_tc_get_stat(struct rtnl_tc *, enum rtnl_tc_stat); 100 101 extern int rtnl_tc_calc_txtime(int, int); 102 extern int rtnl_tc_calc_bufsize(int, int); 103 extern int rtnl_tc_calc_cell_log(int); 104 105 extern int rtnl_tc_read_classid_file(void); 106 extern char * rtnl_tc_handle2str(uint32_t, char *, size_t); 107 extern int rtnl_tc_str2handle(const char *, uint32_t *); 108 extern int rtnl_classid_generate(const char *, uint32_t *, 109 uint32_t); 110 111 #ifdef __cplusplus 112 } 113 #endif 114 115 #endif 116
