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60265cc226
The functions print_rate() and sprint_rate() are useful for formatting rate-like values. The DCB tool would find these useful in the maxrate subtool. However, the current interface to these functions uses a global variable use_iec as a flag indicating whether 1024- or 1000-based powers should be used when formatting the rate value. For general use, a global variable is not a great way of passing arguments to a function. Besides, it is unlike most other printing functions in that it deals in buffers and ignores JSON. Therefore make the interface to print_rate() explicit by converting use_iec to an ordinary parameter. Since the interface changes anyway, convert it to follow the pattern of other json_print functions (except for the now-explicit use_iec parameter). Move to json_print.c. Add a wrapper to tc, so that all the call sites do not need to repeat the use_iec global variable argument, and convert all call sites. In q_cake.c, the conversion is not straightforward due to usage of a macro that is shared across numerous data types. Simply hand-roll the corresponding code, which seems better than making an extra helper for one call site. Drop sprint_rate() now that everybody just uses print_rate(). Signed-off-by: Petr Machata <me@pmachata.org> Signed-off-by: David Ahern <dsahern@gmail.com>
141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TC_UTIL_H_
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#define _TC_UTIL_H_ 1
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#define MAX_MSG 16384
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#include <limits.h>
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#include <linux/if.h>
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#include <stdbool.h>
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#include <linux/pkt_sched.h>
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#include <linux/pkt_cls.h>
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#include <linux/gen_stats.h>
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#include "tc_core.h"
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#include "json_print.h"
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/* This is the deprecated multiqueue interface */
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#ifndef TCA_PRIO_MAX
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enum
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{
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TCA_PRIO_UNSPEC,
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TCA_PRIO_MQ,
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__TCA_PRIO_MAX
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};
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#define TCA_PRIO_MAX (__TCA_PRIO_MAX - 1)
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#endif
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#define FILTER_NAMESZ 16
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struct qdisc_util {
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struct qdisc_util *next;
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const char *id;
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int (*parse_qopt)(struct qdisc_util *qu, int argc,
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char **argv, struct nlmsghdr *n, const char *dev);
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int (*print_qopt)(struct qdisc_util *qu,
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FILE *f, struct rtattr *opt);
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int (*print_xstats)(struct qdisc_util *qu,
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FILE *f, struct rtattr *xstats);
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int (*parse_copt)(struct qdisc_util *qu, int argc,
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char **argv, struct nlmsghdr *n, const char *dev);
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int (*print_copt)(struct qdisc_util *qu, FILE *f, struct rtattr *opt);
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int (*has_block)(struct qdisc_util *qu, struct rtattr *opt, __u32 block_idx, bool *p_has);
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};
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extern __u16 f_proto;
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struct filter_util {
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struct filter_util *next;
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char id[FILTER_NAMESZ];
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int (*parse_fopt)(struct filter_util *qu, char *fhandle,
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int argc, char **argv, struct nlmsghdr *n);
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int (*print_fopt)(struct filter_util *qu,
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FILE *f, struct rtattr *opt, __u32 fhandle);
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};
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struct action_util {
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struct action_util *next;
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char id[FILTER_NAMESZ];
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int (*parse_aopt)(struct action_util *a, int *argc,
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char ***argv, int code, struct nlmsghdr *n);
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int (*print_aopt)(struct action_util *au, FILE *f, struct rtattr *opt);
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int (*print_xstats)(struct action_util *au,
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FILE *f, struct rtattr *xstats);
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};
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struct exec_util {
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struct exec_util *next;
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char id[FILTER_NAMESZ];
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int (*parse_eopt)(struct exec_util *eu, int argc, char **argv);
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};
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const char *get_tc_lib(void);
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struct qdisc_util *get_qdisc_kind(const char *str);
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struct filter_util *get_filter_kind(const char *str);
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int get_qdisc_handle(__u32 *h, const char *str);
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int get_rate(unsigned int *rate, const char *str);
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int get_percent_rate(unsigned int *rate, const char *str, const char *dev);
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int get_rate64(__u64 *rate, const char *str);
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int get_percent_rate64(__u64 *rate, const char *str, const char *dev);
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int get_size(unsigned int *size, const char *str);
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int get_size_and_cell(unsigned int *size, int *cell_log, char *str);
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int get_linklayer(unsigned int *val, const char *arg);
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void tc_print_rate(enum output_type t, const char *key, const char *fmt,
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unsigned long long rate);
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void print_devname(enum output_type type, int ifindex);
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char *sprint_size(__u32 size, char *buf);
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char *sprint_tc_classid(__u32 h, char *buf);
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char *sprint_ticks(__u32 ticks, char *buf);
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char *sprint_linklayer(unsigned int linklayer, char *buf);
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void print_tcstats_attr(FILE *fp, struct rtattr *tb[],
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char *prefix, struct rtattr **xstats);
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void print_tcstats2_attr(FILE *fp, struct rtattr *rta,
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char *prefix, struct rtattr **xstats);
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int get_tc_classid(__u32 *h, const char *str);
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int print_tc_classid(char *buf, int len, __u32 h);
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char *sprint_tc_classid(__u32 h, char *buf);
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int tc_print_police(FILE *f, struct rtattr *tb);
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int parse_percent(double *val, const char *str);
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int parse_police(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n);
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int parse_action_control(int *argc_p, char ***argv_p,
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int *result_p, bool allow_num);
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void parse_action_control_dflt(int *argc_p, char ***argv_p,
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int *result_p, bool allow_num,
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int default_result);
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int parse_action_control_slash(int *argc_p, char ***argv_p,
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int *result1_p, int *result2_p, bool allow_num);
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void print_action_control(FILE *f, const char *prefix,
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int action, const char *suffix);
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int police_print_xstats(struct action_util *a, FILE *f, struct rtattr *tb);
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int tc_print_action(FILE *f, const struct rtattr *tb, unsigned short tot_acts);
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int tc_print_ipt(FILE *f, const struct rtattr *tb);
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int parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n);
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void print_tm(FILE *f, const struct tcf_t *tm);
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int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt);
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int cls_names_init(char *path);
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void cls_names_uninit(void);
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int action_a2n(char *arg, int *result, bool allow_num);
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bool tc_qdisc_block_exists(__u32 block_index);
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void print_masked_u32(const char *name, struct rtattr *attr,
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struct rtattr *mask_attr, bool newline);
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void print_masked_u16(const char *name, struct rtattr *attr,
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struct rtattr *mask_attr, bool newline);
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void print_masked_u8(const char *name, struct rtattr *attr,
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struct rtattr *mask_attr, bool newline);
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void print_masked_be16(const char *name, struct rtattr *attr,
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struct rtattr *mask_attr, bool newline);
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#endif
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