custom/fix_shaper_proxy-arp.patch at master · DmitriyEshenko/custom · GitHub

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--- limiter.c_orig      2018-08-30 15:54:13.373216582 +0300
+++ limiter.c   2018-08-30 15:58:25.773303016 +0300
@@ -13,6 +13,7 @@
 #include <linux/pkt_sched.h>
 #include <linux/tc_act/tc_mirred.h>
 #include <linux/tc_act/tc_skbedit.h>
+#include <linux/tc_act/tc_gact.h>

 #include "log.h"
 #include "ppp.h"
@@ -326,6 +327,10 @@
                .ifindex = conf_ifb_ifindex,
        };

+       struct tc_gact p3 = {
+               .action = TC_ACT_OK,
+       };
+
        if (tc_qdisc_modify(rth, conf_ifb_ifindex, RTM_NEWTCLASS, NLM_F_EXCL|NLM_F_CREATE, &opt1))
                return -1;

@@ -342,7 +347,7 @@
        req.t.tcm_handle = 1;
        req.t.tcm_parent = 0xffff0000;

-       req.t.tcm_info = TC_H_MAKE(100 << 16, ntohs(ETH_P_IP));
+       req.t.tcm_info = TC_H_MAKE(100 << 16, ntohs(ETH_P_ALL));


        addattr_l(&req.n, sizeof(req), TCA_KIND, "u32", 4);
@@ -386,6 +391,50 @@

        addattr32(&req.n, TCA_BUF_MAX, TCA_U32_CLASSID, 1);
        addattr_l(&req.n, MAX_MSG, TCA_U32_SEL, &sel, sizeof(sel));
+       tail->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail;
+
+       if (rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL, 0) < 0)
+               return -1;
+
+       //Pass ARP
+       memset(&req, 0, sizeof(req));
+
+       req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
+       req.n.nlmsg_flags = NLM_F_REQUEST|NLM_F_EXCL|NLM_F_CREATE;
+       req.n.nlmsg_type = RTM_NEWTFILTER;
+       req.t.tcm_family = AF_UNSPEC;
+       req.t.tcm_ifindex = ifindex;
+       req.t.tcm_handle = 1;
+       req.t.tcm_parent = 0xffff0000;
+
+       req.t.tcm_info = TC_H_MAKE(90 << 16, ntohs(ETH_P_ARP));
+
+
+       addattr_l(&req.n, sizeof(req), TCA_KIND, "u32", 4);
+
+       tail = NLMSG_TAIL(&req.n);
+       addattr_l(&req.n, MAX_MSG, TCA_OPTIONS, NULL, 0);
+
+       tail1 = NLMSG_TAIL(&req.n);
+       addattr_l(&req.n, MAX_MSG, TCA_U32_ACT, NULL, 0);
+
+       // action pass
+       tail2 = NLMSG_TAIL(&req.n);
+       addattr_l(&req.n, MAX_MSG, 1, NULL, 0);
+       addattr_l(&req.n, MAX_MSG, TCA_ACT_KIND, "gact", 5);
+
+       tail3 = NLMSG_TAIL(&req.n);
+       addattr_l(&req.n, MAX_MSG, TCA_ACT_OPTIONS, NULL, 0);
+       addattr_l(&req.n, MAX_MSG, TCA_GACT_PARMS, &p3, sizeof(p3));
+       tail3->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail3;
+
+       tail2->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail2;
+
+       tail1->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail1;
+       //
+
+       addattr32(&req.n, TCA_BUF_MAX, TCA_U32_CLASSID, 1);
+       addattr_l(&req.n, MAX_MSG, TCA_U32_SEL, &sel, sizeof(sel));
        tail->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail;

        if (rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL, 0) < 0)