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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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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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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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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65 | } FIX_ALIASING;
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66 | #define G (*(struct globals*)&bb_common_bufsiz1)
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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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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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75 | #define INIT_G() do { } while (0)
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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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97 | static int get_qdisc_handle(uint32_t *h, const char *str) {
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98 | uint32_t maj;
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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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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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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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394 | TC_H_MIN(msg->tcm_parent) : msg->tcm_parent);
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395 | printf("parent %s ", classid);
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396 | if (ENABLE_FEATURE_CLEAN_UP)
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397 | free(classid);
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398 | }
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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]) {
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403 | static const char _q_[] ALIGN1 = "pfifo_fast\0""cbq\0";
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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) {
|
---|
516 | uint32_t handle;
|
---|
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
|
---|
529 | slash = strchr(handle, '/');
|
---|
530 | if (slash != NULL)
|
---|
531 | *slash = '\0';
|
---|
532 | */
|
---|
533 | msg.tcm_handle = get_u32(*argv, "handle");
|
---|
534 | /* if (slash) {if (get_u32(uint32_t &mask, slash+1, NULL)) inv mask; addattr32(n, MAX_MSG, TCA_FW_MASK, mask); */
|
---|
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 | }
|
---|