tc/tc_util.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _TC_UTIL_H_
   3 #define _TC_UTIL_H_ 1
   4
   5 #define MAX_MSG 16384
   6 #include <limits.h>
   7 #include <linux/if.h>
   8
   9 #include <linux/pkt_sched.h>
  10 #include <linux/pkt_cls.h>
  11 #include <linux/gen_stats.h>
  12
  13 #include "tc_core.h"
  14
  15 /* This is the deprecated multiqueue interface */
  16 #ifndef TCA_PRIO_MAX
  17 enum
  18 {
  19         TCA_PRIO_UNSPEC,
  20         TCA_PRIO_MQ,
  21         __TCA_PRIO_MAX
  22 };
  23
  24 #define TCA_PRIO_MAX    (__TCA_PRIO_MAX - 1)
  25 #endif
  26
  27 #define FILTER_NAMESZ   16
  28
  29 struct qdisc_util {
  30         struct  qdisc_util *next;
  31         const char *id;
  32         int (*parse_qopt)(struct qdisc_util *qu, int argc,
  33                           char **argv, struct nlmsghdr *n, const char *dev);
  34         int (*print_qopt)(struct qdisc_util *qu,
  35                           FILE *f, struct rtattr *opt);
  36         int (*print_xstats)(struct qdisc_util *qu,
  37                             FILE *f, struct rtattr *xstats);
  38
  39         int (*parse_copt)(struct qdisc_util *qu, int argc,
  40                           char **argv, struct nlmsghdr *n, const char *dev);
  41         int (*print_copt)(struct qdisc_util *qu, FILE *f, struct rtattr *opt);
  42 };
  43
  44 extern __u16 f_proto;
  45 struct filter_util {
  46         struct filter_util *next;
  47         char id[FILTER_NAMESZ];
  48         int (*parse_fopt)(struct filter_util *qu, char *fhandle,
  49                           int argc, char **argv, struct nlmsghdr *n);
  50         int (*print_fopt)(struct filter_util *qu,
  51                           FILE *f, struct rtattr *opt, __u32 fhandle);
  52 };
  53
  54 struct action_util {
  55         struct action_util *next;
  56         char id[FILTER_NAMESZ];
  57         int (*parse_aopt)(struct action_util *a, int *argc,
  58                           char ***argv, int code, struct nlmsghdr *n);
  59         int (*print_aopt)(struct action_util *au, FILE *f, struct rtattr *opt);
  60         int (*print_xstats)(struct action_util *au,
  61                             FILE *f, struct rtattr *xstats);
  62 };
  63
  64 struct exec_util {
  65         struct exec_util *next;
  66         char id[FILTER_NAMESZ];
  67         int (*parse_eopt)(struct exec_util *eu, int argc, char **argv);
  68 };
  69
  70 const char *get_tc_lib(void);
  71
  72 struct qdisc_util *get_qdisc_kind(const char *str);
  73 struct filter_util *get_filter_kind(const char *str);
  74
  75 int parse_percent_rate(char *rate, const char *str, const char *dev);
  76 int get_qdisc_handle(__u32 *h, const char *str);
  77 int get_rate(unsigned int *rate, const char *str);
  78 int get_percent_rate(unsigned int *rate, const char *str, const char *dev);
  79 int get_rate64(__u64 *rate, const char *str);
  80 int get_percent_rate64(__u64 *rate, const char *str, const char *dev);
  81 int get_size(unsigned int *size, const char *str);
  82 int get_size_and_cell(unsigned int *size, int *cell_log, char *str);
  83 int get_time(unsigned int *time, const char *str);
  84 int get_linklayer(unsigned int *val, const char *arg);
  85
  86 void print_rate(char *buf, int len, __u64 rate);
  87 void print_size(char *buf, int len, __u32 size);
  88 void print_qdisc_handle(char *buf, int len, __u32 h);
  89 void print_time(char *buf, int len, __u32 time);
  90 void print_linklayer(char *buf, int len, unsigned int linklayer);
  91
  92 char *sprint_rate(__u64 rate, char *buf);
  93 char *sprint_size(__u32 size, char *buf);
  94 char *sprint_qdisc_handle(__u32 h, char *buf);
  95 char *sprint_tc_classid(__u32 h, char *buf);
  96 char *sprint_time(__u32 time, char *buf);
  97 char *sprint_ticks(__u32 ticks, char *buf);
  98 char *sprint_linklayer(unsigned int linklayer, char *buf);
  99
 100 void print_tcstats_attr(FILE *fp, struct rtattr *tb[],
 101                         char *prefix, struct rtattr **xstats);
 102 void print_tcstats2_attr(FILE *fp, struct rtattr *rta,
 103                          char *prefix, struct rtattr **xstats);
 104
 105 int get_tc_classid(__u32 *h, const char *str);
 106 int print_tc_classid(char *buf, int len, __u32 h);
 107 char *sprint_tc_classid(__u32 h, char *buf);
 108
 109 int tc_print_police(FILE *f, struct rtattr *tb);
 110 int parse_police(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n);
 111
 112 int parse_action_control(int *argc_p, char ***argv_p,
 113                          int *result_p, bool allow_num);
 114 void parse_action_control_dflt(int *argc_p, char ***argv_p,
 115                                int *result_p, bool allow_num,
 116                                int default_result);
 117 int parse_action_control_slash(int *argc_p, char ***argv_p,
 118                                int *result1_p, int *result2_p, bool allow_num);
 119 void print_action_control(FILE *f, const char *prefix,
 120                           int action, const char *suffix);
 121 int act_parse_police(struct action_util *a, int *argc_p,
 122                      char ***argv_p, int tca_id, struct nlmsghdr *n);
 123 int print_police(struct action_util *a, FILE *f, struct rtattr *tb);
 124 int police_print_xstats(struct action_util *a, FILE *f, struct rtattr *tb);
 125 int tc_print_action(FILE *f, const struct rtattr *tb, unsigned short tot_acts);
 126 int tc_print_ipt(FILE *f, const struct rtattr *tb);
 127 int parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n);
 128 void print_tm(FILE *f, const struct tcf_t *tm);
 129 int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt);
 130
 131 int cls_names_init(char *path);
 132 void cls_names_uninit(void);
 133
 134 #endif