[2725] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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| 4 | *
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| 5 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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| 6 | *
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| 7 | * Bernhard Reutner-Fischer adjusted for busybox
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| 8 | */
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| 9 |
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[3232] | 10 | //usage:#define tc_trivial_usage
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| 11 | /* //usage: "[OPTIONS] OBJECT CMD [dev STRING]" */
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| 12 | //usage: "OBJECT CMD [dev STRING]"
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| 13 | //usage:#define tc_full_usage "\n\n"
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| 14 | //usage: "OBJECT: {qdisc|class|filter}\n"
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| 15 | //usage: "CMD: {add|del|change|replace|show}\n"
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| 16 | //usage: "\n"
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| 17 | //usage: "qdisc [ handle QHANDLE ] [ root |"IF_FEATURE_TC_INGRESS(" ingress |")" parent CLASSID ]\n"
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| 18 | /* //usage: "[ estimator INTERVAL TIME_CONSTANT ]\n" */
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| 19 | //usage: " [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n"
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| 20 | //usage: " QDISC_KIND := { [p|b]fifo | tbf | prio | cbq | red | etc. }\n"
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| 21 | //usage: "qdisc show [ dev STRING ]"IF_FEATURE_TC_INGRESS(" [ingress]")"\n"
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| 22 | //usage: "class [ classid CLASSID ] [ root | parent CLASSID ]\n"
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| 23 | //usage: " [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n"
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| 24 | //usage: "class show [ dev STRING ] [ root | parent CLASSID ]\n"
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| 25 | //usage: "filter [ pref PRIO ] [ protocol PROTO ]\n"
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| 26 | /* //usage: "\t[ estimator INTERVAL TIME_CONSTANT ]\n" */
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| 27 | //usage: " [ root | classid CLASSID ] [ handle FILTERID ]\n"
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| 28 | //usage: " [ [ FILTER_TYPE ] [ help | OPTIONS ] ]\n"
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| 29 | //usage: "filter show [ dev STRING ] [ root | parent CLASSID ]"
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| 30 |
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[2725] | 31 | #include "libbb.h"
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| 32 |
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| 33 | #include "libiproute/utils.h"
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| 34 | #include "libiproute/ip_common.h"
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| 35 | #include "libiproute/rt_names.h"
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| 36 | #include <linux/pkt_sched.h> /* for the TC_H_* macros */
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| 37 |
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| 38 | #define parse_rtattr_nested(tb, max, rta) \
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| 39 | (parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)))
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| 40 |
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| 41 | /* nullifies tb on error */
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| 42 | #define __parse_rtattr_nested_compat(tb, max, rta, len) \
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| 43 | ({if ((RTA_PAYLOAD(rta) >= len) && \
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| 44 | (RTA_PAYLOAD(rta) >= RTA_ALIGN(len) + sizeof(struct rtattr))) { \
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| 45 | rta = RTA_DATA(rta) + RTA_ALIGN(len); \
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| 46 | parse_rtattr_nested(tb, max, rta); \
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| 47 | } else \
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| 48 | memset(tb, 0, sizeof(struct rtattr *) * (max + 1)); \
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| 49 | })
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| 50 |
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| 51 | #define parse_rtattr_nested_compat(tb, max, rta, data, len) \
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| 52 | ({data = RTA_PAYLOAD(rta) >= len ? RTA_DATA(rta) : NULL; \
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| 53 | __parse_rtattr_nested_compat(tb, max, rta, len); })
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| 54 |
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| 55 | #define show_details (0) /* not implemented. Does anyone need it? */
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| 56 | #define use_iec (0) /* not currently documented in the upstream manpage */
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| 57 |
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| 58 |
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| 59 | struct globals {
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| 60 | int filter_ifindex;
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[3232] | 61 | uint32_t filter_qdisc;
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| 62 | uint32_t filter_parent;
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| 63 | uint32_t filter_prio;
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| 64 | uint32_t filter_proto;
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[2725] | 65 | } FIX_ALIASING;
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| 66 | #define G (*(struct globals*)&bb_common_bufsiz1)
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[3232] | 67 | struct BUG_G_too_big {
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| 68 | char BUG_G_too_big[sizeof(G) <= COMMON_BUFSIZE ? 1 : -1];
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| 69 | };
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[2725] | 70 | #define filter_ifindex (G.filter_ifindex)
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| 71 | #define filter_qdisc (G.filter_qdisc)
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| 72 | #define filter_parent (G.filter_parent)
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| 73 | #define filter_prio (G.filter_prio)
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| 74 | #define filter_proto (G.filter_proto)
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[3232] | 75 | #define INIT_G() do { } while (0)
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[2725] | 76 |
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| 77 | /* Allocates a buffer containing the name of a class id.
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| 78 | * The caller must free the returned memory. */
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| 79 | static char* print_tc_classid(uint32_t cid)
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| 80 | {
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| 81 | #if 0 /* IMPOSSIBLE */
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| 82 | if (cid == TC_H_ROOT)
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| 83 | return xasprintf("root");
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| 84 | else
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| 85 | #endif
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| 86 | if (cid == TC_H_UNSPEC)
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| 87 | return xasprintf("none");
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| 88 | else if (TC_H_MAJ(cid) == 0)
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| 89 | return xasprintf(":%x", TC_H_MIN(cid));
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| 90 | else if (TC_H_MIN(cid) == 0)
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| 91 | return xasprintf("%x:", TC_H_MAJ(cid)>>16);
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| 92 | else
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| 93 | return xasprintf("%x:%x", TC_H_MAJ(cid)>>16, TC_H_MIN(cid));
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| 94 | }
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| 95 |
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| 96 | /* Get a qdisc handle. Return 0 on success, !0 otherwise. */
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[3232] | 97 | static int get_qdisc_handle(uint32_t *h, const char *str) {
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| 98 | uint32_t maj;
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[2725] | 99 | char *p;
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| 100 |
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| 101 | maj = TC_H_UNSPEC;
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| 102 | if (!strcmp(str, "none"))
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| 103 | goto ok;
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| 104 | maj = strtoul(str, &p, 16);
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| 105 | if (p == str)
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| 106 | return 1;
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| 107 | maj <<= 16;
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| 108 | if (*p != ':' && *p != '\0')
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| 109 | return 1;
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| 110 | ok:
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| 111 | *h = maj;
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| 112 | return 0;
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| 113 | }
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| 114 |
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| 115 | /* Get class ID. Return 0 on success, !0 otherwise. */
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[3232] | 116 | static int get_tc_classid(uint32_t *h, const char *str) {
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| 117 | uint32_t maj, min;
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[2725] | 118 | char *p;
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| 119 |
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| 120 | maj = TC_H_ROOT;
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| 121 | if (!strcmp(str, "root"))
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| 122 | goto ok;
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| 123 | maj = TC_H_UNSPEC;
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| 124 | if (!strcmp(str, "none"))
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| 125 | goto ok;
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| 126 | maj = strtoul(str, &p, 16);
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| 127 | if (p == str) {
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| 128 | if (*p != ':')
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| 129 | return 1;
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| 130 | maj = 0;
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| 131 | }
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| 132 | if (*p == ':') {
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| 133 | if (maj >= (1<<16))
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| 134 | return 1;
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| 135 | maj <<= 16;
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| 136 | str = p + 1;
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| 137 | min = strtoul(str, &p, 16);
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| 138 | //FIXME: check for "" too?
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| 139 | if (*p != '\0' || min >= (1<<16))
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| 140 | return 1;
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| 141 | maj |= min;
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| 142 | } else if (*p != 0)
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| 143 | return 1;
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| 144 | ok:
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| 145 | *h = maj;
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| 146 | return 0;
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| 147 | }
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| 148 |
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| 149 | static void print_rate(char *buf, int len, uint32_t rate)
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| 150 | {
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| 151 | double tmp = (double)rate*8;
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| 152 |
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| 153 | if (use_iec) {
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| 154 | if (tmp >= 1000.0*1024.0*1024.0)
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| 155 | snprintf(buf, len, "%.0fMibit", tmp/1024.0*1024.0);
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| 156 | else if (tmp >= 1000.0*1024)
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| 157 | snprintf(buf, len, "%.0fKibit", tmp/1024);
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| 158 | else
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| 159 | snprintf(buf, len, "%.0fbit", tmp);
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| 160 | } else {
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| 161 | if (tmp >= 1000.0*1000000.0)
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| 162 | snprintf(buf, len, "%.0fMbit", tmp/1000000.0);
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| 163 | else if (tmp >= 1000.0 * 1000.0)
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| 164 | snprintf(buf, len, "%.0fKbit", tmp/1000.0);
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| 165 | else
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| 166 | snprintf(buf, len, "%.0fbit", tmp);
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| 167 | }
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| 168 | }
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| 169 |
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| 170 | /* This is "pfifo_fast". */
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| 171 | static int prio_parse_opt(int argc, char **argv, struct nlmsghdr *n)
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| 172 | {
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| 173 | return 0;
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| 174 | }
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| 175 | static int prio_print_opt(struct rtattr *opt)
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| 176 | {
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| 177 | int i;
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| 178 | struct tc_prio_qopt *qopt;
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| 179 | struct rtattr *tb[TCA_PRIO_MAX+1];
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| 180 |
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| 181 | if (opt == NULL)
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| 182 | return 0;
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| 183 | parse_rtattr_nested_compat(tb, TCA_PRIO_MAX, opt, qopt, sizeof(*qopt));
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| 184 | if (tb == NULL)
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| 185 | return 0;
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| 186 | printf("bands %u priomap ", qopt->bands);
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| 187 | for (i=0; i<=TC_PRIO_MAX; i++)
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| 188 | printf(" %d", qopt->priomap[i]);
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| 189 |
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| 190 | if (tb[TCA_PRIO_MQ])
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| 191 | printf(" multiqueue: o%s ",
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| 192 | *(unsigned char *)RTA_DATA(tb[TCA_PRIO_MQ]) ? "n" : "ff");
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| 193 |
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| 194 | return 0;
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| 195 | }
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| 196 |
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| 197 | /* Class Based Queue */
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| 198 | static int cbq_parse_opt(int argc, char **argv, struct nlmsghdr *n)
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| 199 | {
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| 200 | return 0;
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| 201 | }
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| 202 | static int cbq_print_opt(struct rtattr *opt)
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| 203 | {
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| 204 | struct rtattr *tb[TCA_CBQ_MAX+1];
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| 205 | struct tc_ratespec *r = NULL;
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| 206 | struct tc_cbq_lssopt *lss = NULL;
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| 207 | struct tc_cbq_wrropt *wrr = NULL;
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| 208 | struct tc_cbq_fopt *fopt = NULL;
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| 209 | struct tc_cbq_ovl *ovl = NULL;
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| 210 | const char *const error = "CBQ: too short %s opt";
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| 211 | char buf[64];
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| 212 |
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| 213 | if (opt == NULL)
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| 214 | goto done;
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| 215 | parse_rtattr_nested(tb, TCA_CBQ_MAX, opt);
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| 216 |
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| 217 | if (tb[TCA_CBQ_RATE]) {
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| 218 | if (RTA_PAYLOAD(tb[TCA_CBQ_RATE]) < sizeof(*r))
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| 219 | bb_error_msg(error, "rate");
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| 220 | else
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| 221 | r = RTA_DATA(tb[TCA_CBQ_RATE]);
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| 222 | }
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| 223 | if (tb[TCA_CBQ_LSSOPT]) {
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| 224 | if (RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT]) < sizeof(*lss))
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| 225 | bb_error_msg(error, "lss");
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| 226 | else
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| 227 | lss = RTA_DATA(tb[TCA_CBQ_LSSOPT]);
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| 228 | }
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| 229 | if (tb[TCA_CBQ_WRROPT]) {
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| 230 | if (RTA_PAYLOAD(tb[TCA_CBQ_WRROPT]) < sizeof(*wrr))
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| 231 | bb_error_msg(error, "wrr");
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| 232 | else
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| 233 | wrr = RTA_DATA(tb[TCA_CBQ_WRROPT]);
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| 234 | }
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| 235 | if (tb[TCA_CBQ_FOPT]) {
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| 236 | if (RTA_PAYLOAD(tb[TCA_CBQ_FOPT]) < sizeof(*fopt))
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| 237 | bb_error_msg(error, "fopt");
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| 238 | else
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| 239 | fopt = RTA_DATA(tb[TCA_CBQ_FOPT]);
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| 240 | }
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| 241 | if (tb[TCA_CBQ_OVL_STRATEGY]) {
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| 242 | if (RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]) < sizeof(*ovl))
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| 243 | bb_error_msg("CBQ: too short overlimit strategy %u/%u",
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| 244 | (unsigned) RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]),
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| 245 | (unsigned) sizeof(*ovl));
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| 246 | else
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| 247 | ovl = RTA_DATA(tb[TCA_CBQ_OVL_STRATEGY]);
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| 248 | }
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| 249 |
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| 250 | if (r) {
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| 251 | print_rate(buf, sizeof(buf), r->rate);
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| 252 | printf("rate %s ", buf);
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| 253 | if (show_details) {
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| 254 | printf("cell %ub ", 1<<r->cell_log);
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| 255 | if (r->mpu)
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| 256 | printf("mpu %ub ", r->mpu);
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| 257 | if (r->overhead)
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| 258 | printf("overhead %ub ", r->overhead);
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| 259 | }
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| 260 | }
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| 261 | if (lss && lss->flags) {
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| 262 | bool comma = false;
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| 263 | bb_putchar('(');
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| 264 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
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| 265 | printf("bounded");
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| 266 | comma = true;
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| 267 | }
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| 268 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
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| 269 | if (comma)
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| 270 | bb_putchar(',');
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| 271 | printf("isolated");
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| 272 | }
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| 273 | printf(") ");
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| 274 | }
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| 275 | if (wrr) {
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| 276 | if (wrr->priority != TC_CBQ_MAXPRIO)
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| 277 | printf("prio %u", wrr->priority);
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| 278 | else
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| 279 | printf("prio no-transmit");
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| 280 | if (show_details) {
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| 281 | printf("/%u ", wrr->cpriority);
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| 282 | if (wrr->weight != 1) {
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| 283 | print_rate(buf, sizeof(buf), wrr->weight);
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| 284 | printf("weight %s ", buf);
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| 285 | }
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| 286 | if (wrr->allot)
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| 287 | printf("allot %ub ", wrr->allot);
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| 288 | }
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| 289 | }
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| 290 | done:
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| 291 | return 0;
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| 292 | }
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| 293 |
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| 294 | static int print_qdisc(const struct sockaddr_nl *who UNUSED_PARAM,
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| 295 | struct nlmsghdr *hdr, void *arg UNUSED_PARAM)
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| 296 | {
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| 297 | struct tcmsg *msg = NLMSG_DATA(hdr);
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| 298 | int len = hdr->nlmsg_len;
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| 299 | struct rtattr * tb[TCA_MAX+1];
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| 300 | char *name;
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| 301 |
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| 302 | if (hdr->nlmsg_type != RTM_NEWQDISC && hdr->nlmsg_type != RTM_DELQDISC) {
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| 303 | /* bb_error_msg("not a qdisc"); */
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| 304 | return 0; /* ??? mimic upstream; should perhaps return -1 */
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| 305 | }
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| 306 | len -= NLMSG_LENGTH(sizeof(*msg));
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| 307 | if (len < 0) {
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| 308 | /* bb_error_msg("wrong len %d", len); */
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| 309 | return -1;
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| 310 | }
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| 311 | /* not the desired interface? */
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| 312 | if (filter_ifindex && filter_ifindex != msg->tcm_ifindex)
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| 313 | return 0;
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| 314 | memset (tb, 0, sizeof(tb));
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| 315 | parse_rtattr(tb, TCA_MAX, TCA_RTA(msg), len);
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| 316 | if (tb[TCA_KIND] == NULL) {
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| 317 | /* bb_error_msg("%s: NULL kind", "qdisc"); */
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| 318 | return -1;
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| 319 | }
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| 320 | if (hdr->nlmsg_type == RTM_DELQDISC)
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| 321 | printf("deleted ");
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| 322 | name = (char*)RTA_DATA(tb[TCA_KIND]);
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| 323 | printf("qdisc %s %x: ", name, msg->tcm_handle>>16);
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| 324 | if (filter_ifindex == 0)
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| 325 | printf("dev %s ", ll_index_to_name(msg->tcm_ifindex));
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| 326 | if (msg->tcm_parent == TC_H_ROOT)
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| 327 | printf("root ");
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| 328 | else if (msg->tcm_parent) {
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| 329 | char *classid = print_tc_classid(msg->tcm_parent);
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| 330 | printf("parent %s ", classid);
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| 331 | if (ENABLE_FEATURE_CLEAN_UP)
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| 332 | free(classid);
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| 333 | }
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| 334 | if (msg->tcm_info != 1)
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| 335 | printf("refcnt %d ", msg->tcm_info);
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| 336 | if (tb[TCA_OPTIONS]) {
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| 337 | static const char _q_[] ALIGN1 = "pfifo_fast\0""cbq\0";
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| 338 | int qqq = index_in_strings(_q_, name);
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| 339 | if (qqq == 0) { /* pfifo_fast aka prio */
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| 340 | prio_print_opt(tb[TCA_OPTIONS]);
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| 341 | } else if (qqq == 1) { /* class based queuing */
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| 342 | cbq_print_opt(tb[TCA_OPTIONS]);
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| 343 | } else
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| 344 | bb_error_msg("unknown %s", name);
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| 345 | }
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| 346 | bb_putchar('\n');
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| 347 | return 0;
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| 348 | }
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| 349 |
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| 350 | static int print_class(const struct sockaddr_nl *who UNUSED_PARAM,
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| 351 | struct nlmsghdr *hdr, void *arg UNUSED_PARAM)
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| 352 | {
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| 353 | struct tcmsg *msg = NLMSG_DATA(hdr);
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| 354 | int len = hdr->nlmsg_len;
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| 355 | struct rtattr * tb[TCA_MAX+1];
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| 356 | char *name, *classid;
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| 357 |
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| 358 | /*XXX Eventually factor out common code */
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| 359 |
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| 360 | if (hdr->nlmsg_type != RTM_NEWTCLASS && hdr->nlmsg_type != RTM_DELTCLASS) {
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| 361 | /* bb_error_msg("not a class"); */
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| 362 | return 0; /* ??? mimic upstream; should perhaps return -1 */
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| 363 | }
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| 364 | len -= NLMSG_LENGTH(sizeof(*msg));
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| 365 | if (len < 0) {
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| 366 | /* bb_error_msg("wrong len %d", len); */
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| 367 | return -1;
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| 368 | }
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| 369 | /* not the desired interface? */
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| 370 | if (filter_qdisc && TC_H_MAJ(msg->tcm_handle^filter_qdisc))
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| 371 | return 0;
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| 372 | memset (tb, 0, sizeof(tb));
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| 373 | parse_rtattr(tb, TCA_MAX, TCA_RTA(msg), len);
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| 374 | if (tb[TCA_KIND] == NULL) {
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| 375 | /* bb_error_msg("%s: NULL kind", "class"); */
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| 376 | return -1;
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| 377 | }
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| 378 | if (hdr->nlmsg_type == RTM_DELTCLASS)
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| 379 | printf("deleted ");
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| 380 |
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| 381 | name = (char*)RTA_DATA(tb[TCA_KIND]);
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| 382 | classid = !msg->tcm_handle ? NULL : print_tc_classid(
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| 383 | filter_qdisc ? TC_H_MIN(msg->tcm_parent) : msg->tcm_parent);
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| 384 | printf ("class %s %s", name, classid);
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| 385 | if (ENABLE_FEATURE_CLEAN_UP)
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| 386 | free(classid);
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| 387 |
|
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| 388 | if (filter_ifindex == 0)
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| 389 | printf("dev %s ", ll_index_to_name(msg->tcm_ifindex));
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| 390 | if (msg->tcm_parent == TC_H_ROOT)
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| 391 | printf("root ");
|
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| 392 | else if (msg->tcm_parent) {
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| 393 | classid = print_tc_classid(filter_qdisc ?
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[3232] | 394 | TC_H_MIN(msg->tcm_parent) : msg->tcm_parent);
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[2725] | 395 | printf("parent %s ", classid);
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| 396 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 397 | free(classid);
|
---|
| 398 | }
|
---|
| 399 | if (msg->tcm_info)
|
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| 400 | printf("leaf %x ", msg->tcm_info >> 16);
|
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| 401 | /* Do that get_qdisc_kind(RTA_DATA(tb[TCA_KIND])). */
|
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| 402 | if (tb[TCA_OPTIONS]) {
|
---|
| 403 | static const char _q_[] ALIGN1 = "pfifo_fast\0""cbq\0";
|
---|
| 404 | int qqq = index_in_strings(_q_, name);
|
---|
| 405 | if (qqq == 0) { /* pfifo_fast aka prio */
|
---|
| 406 | /* nothing. */ /*prio_print_opt(tb[TCA_OPTIONS]);*/
|
---|
| 407 | } else if (qqq == 1) { /* class based queuing */
|
---|
| 408 | /* cbq_print_copt() is identical to cbq_print_opt(). */
|
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| 409 | cbq_print_opt(tb[TCA_OPTIONS]);
|
---|
| 410 | } else
|
---|
| 411 | bb_error_msg("unknown %s", name);
|
---|
| 412 | }
|
---|
| 413 | bb_putchar('\n');
|
---|
| 414 |
|
---|
| 415 | return 0;
|
---|
| 416 | }
|
---|
| 417 |
|
---|
| 418 | static int print_filter(const struct sockaddr_nl *who UNUSED_PARAM,
|
---|
| 419 | struct nlmsghdr *hdr, void *arg UNUSED_PARAM)
|
---|
| 420 | {
|
---|
| 421 | struct tcmsg *msg = NLMSG_DATA(hdr);
|
---|
| 422 | int len = hdr->nlmsg_len;
|
---|
| 423 | struct rtattr * tb[TCA_MAX+1];
|
---|
| 424 | return 0;
|
---|
| 425 | }
|
---|
| 426 |
|
---|
| 427 | int tc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 428 | int tc_main(int argc UNUSED_PARAM, char **argv)
|
---|
| 429 | {
|
---|
| 430 | static const char objects[] ALIGN1 =
|
---|
| 431 | "qdisc\0""class\0""filter\0"
|
---|
| 432 | ;
|
---|
| 433 | enum { OBJ_qdisc = 0, OBJ_class, OBJ_filter };
|
---|
| 434 | static const char commands[] ALIGN1 =
|
---|
| 435 | "add\0""delete\0""change\0"
|
---|
| 436 | "link\0" /* only qdisc */
|
---|
| 437 | "replace\0"
|
---|
| 438 | "show\0""list\0"
|
---|
| 439 | ;
|
---|
| 440 | static const char args[] ALIGN1 =
|
---|
| 441 | "dev\0" /* qdisc, class, filter */
|
---|
| 442 | "root\0" /* class, filter */
|
---|
| 443 | "parent\0" /* class, filter */
|
---|
| 444 | "qdisc\0" /* class */
|
---|
| 445 | "handle\0" /* change: qdisc, class(classid) list: filter */
|
---|
| 446 | "classid\0" /* change: for class use "handle" */
|
---|
| 447 | "preference\0""priority\0""protocol\0" /* filter */
|
---|
| 448 | ;
|
---|
| 449 | enum { CMD_add = 0, CMD_del, CMD_change, CMD_link, CMD_replace, CMD_show };
|
---|
| 450 | enum { ARG_dev = 0, ARG_root, ARG_parent, ARG_qdisc,
|
---|
| 451 | ARG_handle, ARG_classid, ARG_pref, ARG_prio, ARG_proto};
|
---|
| 452 | struct rtnl_handle rth;
|
---|
| 453 | struct tcmsg msg;
|
---|
| 454 | int ret, obj, cmd, arg;
|
---|
| 455 | char *dev = NULL;
|
---|
| 456 |
|
---|
| 457 | INIT_G();
|
---|
| 458 |
|
---|
| 459 | if (!*++argv)
|
---|
| 460 | bb_show_usage();
|
---|
| 461 | xrtnl_open(&rth);
|
---|
| 462 | ret = EXIT_SUCCESS;
|
---|
| 463 |
|
---|
| 464 | obj = index_in_substrings(objects, *argv++);
|
---|
| 465 |
|
---|
| 466 | if (obj < OBJ_qdisc)
|
---|
| 467 | bb_show_usage();
|
---|
| 468 | if (!*argv)
|
---|
| 469 | cmd = CMD_show; /* list is the default */
|
---|
| 470 | else {
|
---|
| 471 | cmd = index_in_substrings(commands, *argv);
|
---|
| 472 | if (cmd < 0)
|
---|
| 473 | bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name);
|
---|
| 474 | argv++;
|
---|
| 475 | }
|
---|
| 476 | memset(&msg, 0, sizeof(msg));
|
---|
| 477 | msg.tcm_family = AF_UNSPEC;
|
---|
| 478 | ll_init_map(&rth);
|
---|
| 479 | while (*argv) {
|
---|
| 480 | arg = index_in_substrings(args, *argv);
|
---|
| 481 | if (arg == ARG_dev) {
|
---|
| 482 | NEXT_ARG();
|
---|
| 483 | if (dev)
|
---|
| 484 | duparg2("dev", *argv);
|
---|
| 485 | dev = *argv++;
|
---|
| 486 | msg.tcm_ifindex = xll_name_to_index(dev);
|
---|
| 487 | if (cmd >= CMD_show)
|
---|
| 488 | filter_ifindex = msg.tcm_ifindex;
|
---|
| 489 | } else
|
---|
| 490 | if ((arg == ARG_qdisc && obj == OBJ_class && cmd >= CMD_show)
|
---|
| 491 | || (arg == ARG_handle && obj == OBJ_qdisc && cmd == CMD_change)
|
---|
| 492 | ) {
|
---|
| 493 | NEXT_ARG();
|
---|
| 494 | /* We don't care about duparg2("qdisc handle",*argv) for now */
|
---|
| 495 | if (get_qdisc_handle(&filter_qdisc, *argv))
|
---|
| 496 | invarg(*argv, "qdisc");
|
---|
| 497 | } else
|
---|
| 498 | if (obj != OBJ_qdisc
|
---|
| 499 | && (arg == ARG_root
|
---|
| 500 | || arg == ARG_parent
|
---|
| 501 | || (obj == OBJ_filter && arg >= ARG_pref)
|
---|
| 502 | )
|
---|
| 503 | ) {
|
---|
| 504 | /* nothing */
|
---|
| 505 | } else {
|
---|
| 506 | invarg(*argv, "command");
|
---|
| 507 | }
|
---|
| 508 | NEXT_ARG();
|
---|
| 509 | if (arg == ARG_root) {
|
---|
| 510 | if (msg.tcm_parent)
|
---|
| 511 | duparg("parent", *argv);
|
---|
| 512 | msg.tcm_parent = TC_H_ROOT;
|
---|
| 513 | if (obj == OBJ_filter)
|
---|
| 514 | filter_parent = TC_H_ROOT;
|
---|
| 515 | } else if (arg == ARG_parent) {
|
---|
[3232] | 516 | uint32_t handle;
|
---|
[2725] | 517 | if (msg.tcm_parent)
|
---|
| 518 | duparg(*argv, "parent");
|
---|
| 519 | if (get_tc_classid(&handle, *argv))
|
---|
| 520 | invarg(*argv, "parent");
|
---|
| 521 | msg.tcm_parent = handle;
|
---|
| 522 | if (obj == OBJ_filter)
|
---|
| 523 | filter_parent = handle;
|
---|
| 524 | } else if (arg == ARG_handle) { /* filter::list */
|
---|
| 525 | if (msg.tcm_handle)
|
---|
| 526 | duparg(*argv, "handle");
|
---|
| 527 | /* reject LONG_MIN || LONG_MAX */
|
---|
| 528 | /* TODO: for fw
|
---|
[3232] | 529 | slash = strchr(handle, '/');
|
---|
| 530 | if (slash != NULL)
|
---|
[2725] | 531 | *slash = '\0';
|
---|
| 532 | */
|
---|
| 533 | msg.tcm_handle = get_u32(*argv, "handle");
|
---|
[3232] | 534 | /* if (slash) {if (get_u32(uint32_t &mask, slash+1, NULL)) inv mask; addattr32(n, MAX_MSG, TCA_FW_MASK, mask); */
|
---|
[2725] | 535 | } else if (arg == ARG_classid && obj == OBJ_class && cmd == CMD_change){
|
---|
| 536 | } else if (arg == ARG_pref || arg == ARG_prio) { /* filter::list */
|
---|
| 537 | if (filter_prio)
|
---|
| 538 | duparg(*argv, "priority");
|
---|
| 539 | filter_prio = get_u32(*argv, "priority");
|
---|
| 540 | } else if (arg == ARG_proto) { /* filter::list */
|
---|
| 541 | uint16_t tmp;
|
---|
| 542 | if (filter_proto)
|
---|
| 543 | duparg(*argv, "protocol");
|
---|
| 544 | if (ll_proto_a2n(&tmp, *argv))
|
---|
| 545 | invarg(*argv, "protocol");
|
---|
| 546 | filter_proto = tmp;
|
---|
| 547 | }
|
---|
| 548 | }
|
---|
| 549 | if (cmd >= CMD_show) { /* show or list */
|
---|
| 550 | if (obj == OBJ_filter)
|
---|
| 551 | msg.tcm_info = TC_H_MAKE(filter_prio<<16, filter_proto);
|
---|
| 552 | if (rtnl_dump_request(&rth, obj == OBJ_qdisc ? RTM_GETQDISC :
|
---|
| 553 | obj == OBJ_class ? RTM_GETTCLASS : RTM_GETTFILTER,
|
---|
| 554 | &msg, sizeof(msg)) < 0)
|
---|
| 555 | bb_simple_perror_msg_and_die("can't send dump request");
|
---|
| 556 |
|
---|
| 557 | xrtnl_dump_filter(&rth, obj == OBJ_qdisc ? print_qdisc :
|
---|
| 558 | obj == OBJ_class ? print_class : print_filter,
|
---|
| 559 | NULL);
|
---|
| 560 | }
|
---|
| 561 | if (ENABLE_FEATURE_CLEAN_UP) {
|
---|
| 562 | rtnl_close(&rth);
|
---|
| 563 | }
|
---|
| 564 | return ret;
|
---|
| 565 | }
|
---|