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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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1 | 2 | /* |
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2 | 3 | * net/sched/act_gact.c Generic actions |
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3 | 4 | * |
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4 | | - * This program is free software; you can redistribute it and/or |
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5 | | - * modify it under the terms of the GNU General Public License |
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6 | | - * as published by the Free Software Foundation; either version |
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7 | | - * 2 of the License, or (at your option) any later version. |
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8 | | - * |
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9 | 5 | * copyright Jamal Hadi Salim (2002-4) |
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10 | | - * |
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11 | 6 | */ |
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12 | 7 | |
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13 | 8 | #include <linux/types.h> |
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.. | .. |
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20 | 15 | #include <linux/init.h> |
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21 | 16 | #include <net/netlink.h> |
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22 | 17 | #include <net/pkt_sched.h> |
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| 18 | +#include <net/pkt_cls.h> |
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23 | 19 | #include <linux/tc_act/tc_gact.h> |
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24 | 20 | #include <net/tc_act/tc_gact.h> |
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25 | 21 | |
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.. | .. |
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57 | 53 | static int tcf_gact_init(struct net *net, struct nlattr *nla, |
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58 | 54 | struct nlattr *est, struct tc_action **a, |
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59 | 55 | int ovr, int bind, bool rtnl_held, |
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| 56 | + struct tcf_proto *tp, u32 flags, |
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60 | 57 | struct netlink_ext_ack *extack) |
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61 | 58 | { |
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62 | 59 | struct tc_action_net *tn = net_generic(net, gact_net_id); |
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63 | 60 | struct nlattr *tb[TCA_GACT_MAX + 1]; |
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| 61 | + struct tcf_chain *goto_ch = NULL; |
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64 | 62 | struct tc_gact *parm; |
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65 | 63 | struct tcf_gact *gact; |
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66 | 64 | int ret = 0; |
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.. | .. |
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73 | 71 | if (nla == NULL) |
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74 | 72 | return -EINVAL; |
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75 | 73 | |
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76 | | - err = nla_parse_nested(tb, TCA_GACT_MAX, nla, gact_policy, NULL); |
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| 74 | + err = nla_parse_nested_deprecated(tb, TCA_GACT_MAX, nla, gact_policy, |
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| 75 | + NULL); |
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77 | 76 | if (err < 0) |
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78 | 77 | return err; |
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79 | 78 | |
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.. | .. |
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90 | 89 | p_parm = nla_data(tb[TCA_GACT_PROB]); |
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91 | 90 | if (p_parm->ptype >= MAX_RAND) |
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92 | 91 | return -EINVAL; |
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| 92 | + if (TC_ACT_EXT_CMP(p_parm->paction, TC_ACT_GOTO_CHAIN)) { |
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| 93 | + NL_SET_ERR_MSG(extack, |
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| 94 | + "goto chain not allowed on fallback"); |
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| 95 | + return -EINVAL; |
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| 96 | + } |
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93 | 97 | } |
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94 | 98 | #endif |
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95 | 99 | |
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96 | 100 | err = tcf_idr_check_alloc(tn, &index, a, bind); |
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97 | 101 | if (!err) { |
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98 | | - ret = tcf_idr_create(tn, index, est, a, |
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99 | | - &act_gact_ops, bind, true); |
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| 102 | + ret = tcf_idr_create_from_flags(tn, index, est, a, |
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| 103 | + &act_gact_ops, bind, flags); |
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100 | 104 | if (ret) { |
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101 | 105 | tcf_idr_cleanup(tn, index); |
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102 | 106 | return ret; |
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.. | .. |
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113 | 117 | return err; |
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114 | 118 | } |
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115 | 119 | |
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| 120 | + err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack); |
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| 121 | + if (err < 0) |
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| 122 | + goto release_idr; |
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116 | 123 | gact = to_gact(*a); |
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117 | 124 | |
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118 | 125 | spin_lock_bh(&gact->tcf_lock); |
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119 | | - gact->tcf_action = parm->action; |
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| 126 | + goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch); |
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120 | 127 | #ifdef CONFIG_GACT_PROB |
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121 | 128 | if (p_parm) { |
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122 | 129 | gact->tcfg_paction = p_parm->paction; |
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.. | .. |
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130 | 137 | #endif |
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131 | 138 | spin_unlock_bh(&gact->tcf_lock); |
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132 | 139 | |
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133 | | - if (ret == ACT_P_CREATED) |
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134 | | - tcf_idr_insert(tn, *a); |
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| 140 | + if (goto_ch) |
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| 141 | + tcf_chain_put_by_act(goto_ch); |
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| 142 | + |
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135 | 143 | return ret; |
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| 144 | +release_idr: |
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| 145 | + tcf_idr_release(*a, bind); |
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| 146 | + return err; |
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136 | 147 | } |
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137 | 148 | |
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138 | 149 | static int tcf_gact_act(struct sk_buff *skb, const struct tc_action *a, |
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.. | .. |
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149 | 160 | action = gact_rand[ptype](gact); |
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150 | 161 | } |
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151 | 162 | #endif |
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152 | | - bstats_cpu_update(this_cpu_ptr(gact->common.cpu_bstats), skb); |
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| 163 | + tcf_action_update_bstats(&gact->common, skb); |
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153 | 164 | if (action == TC_ACT_SHOT) |
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154 | | - qstats_drop_inc(this_cpu_ptr(gact->common.cpu_qstats)); |
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| 165 | + tcf_action_inc_drop_qstats(&gact->common); |
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155 | 166 | |
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156 | 167 | tcf_lastuse_update(&gact->tcf_tm); |
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157 | 168 | |
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158 | 169 | return action; |
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159 | 170 | } |
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160 | 171 | |
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161 | | -static void tcf_gact_stats_update(struct tc_action *a, u64 bytes, u32 packets, |
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162 | | - u64 lastuse) |
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| 172 | +static void tcf_gact_stats_update(struct tc_action *a, u64 bytes, u64 packets, |
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| 173 | + u64 drops, u64 lastuse, bool hw) |
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163 | 174 | { |
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164 | 175 | struct tcf_gact *gact = to_gact(a); |
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165 | 176 | int action = READ_ONCE(gact->tcf_action); |
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166 | 177 | struct tcf_t *tm = &gact->tcf_tm; |
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167 | 178 | |
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168 | | - _bstats_cpu_update(this_cpu_ptr(gact->common.cpu_bstats), bytes, |
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169 | | - packets); |
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170 | | - if (action == TC_ACT_SHOT) |
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171 | | - this_cpu_ptr(gact->common.cpu_qstats)->drops += packets; |
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172 | | - |
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| 179 | + tcf_action_update_stats(a, bytes, packets, |
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| 180 | + action == TC_ACT_SHOT ? packets : drops, hw); |
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173 | 181 | tm->lastuse = max_t(u64, tm->lastuse, lastuse); |
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174 | 182 | } |
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175 | 183 | |
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.. | .. |
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224 | 232 | return tcf_generic_walker(tn, skb, cb, type, ops, extack); |
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225 | 233 | } |
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226 | 234 | |
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227 | | -static int tcf_gact_search(struct net *net, struct tc_action **a, u32 index, |
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228 | | - struct netlink_ext_ack *extack) |
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| 235 | +static int tcf_gact_search(struct net *net, struct tc_action **a, u32 index) |
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229 | 236 | { |
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230 | 237 | struct tc_action_net *tn = net_generic(net, gact_net_id); |
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231 | 238 | |
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.. | .. |
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247 | 254 | |
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248 | 255 | static struct tc_action_ops act_gact_ops = { |
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249 | 256 | .kind = "gact", |
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250 | | - .type = TCA_ACT_GACT, |
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| 257 | + .id = TCA_ID_GACT, |
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251 | 258 | .owner = THIS_MODULE, |
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252 | 259 | .act = tcf_gact_act, |
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253 | 260 | .stats_update = tcf_gact_stats_update, |
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