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pf: add sctp multihome probe points
Add probe points to allow us to probe when we add or remove multihome addresses. Example use: pf:sctp:multihome:add { printf("Add tag %x address %x", arg0, ((struct pf_sctp_source *)arg1)->addr.v4.s_addr); } pf:sctp:multihome:remove { printf("Remove tag %x address %x", arg0, ((struct pf_sctp_source *)arg2)->addr.v4.s_addr); } MFC after: 1 week Sponsored by: Orange Business Services
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8ed5170c66
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@ -130,6 +130,10 @@ SDT_PROBE_DEFINE2(pf, ip, , bound_iface, "struct pf_kstate *",
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"struct pfi_kkif *");
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SDT_PROBE_DEFINE4(pf, sctp, multihome, test, "struct pfi_kkif *",
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"struct pf_krule *", "struct mbuf *", "int");
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SDT_PROBE_DEFINE2(pf, sctp, multihome, add, "uint32_t",
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"struct pf_sctp_source *");
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SDT_PROBE_DEFINE3(pf, sctp, multihome, remove, "uint32_t",
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"struct pf_kstate *", "struct pf_sctp_source *");
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SDT_PROBE_DEFINE3(pf, eth, test_rule, entry, "int", "struct ifnet *",
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"struct mbuf *");
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@ -6031,11 +6035,12 @@ pf_sctp_multihome_detach_addr(const struct pf_kstate *s)
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key.v_tag = s->dst.scrub->pfss_v_tag;
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ep = RB_FIND(pf_sctp_endpoints, &V_pf_sctp_endpoints, &key);
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if (ep != NULL) {
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/* XXX Actually remove! */
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TAILQ_FOREACH_SAFE(i, &ep->sources, entry, tmp) {
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if (pf_addr_cmp(&i->addr,
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&s->key[PF_SK_WIRE]->addr[s->direction == PF_OUT],
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s->key[PF_SK_WIRE]->af) == 0) {
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SDT_PROBE3(pf, sctp, multihome, remove,
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key.v_tag, s, i);
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TAILQ_REMOVE(&ep->sources, i, entry);
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free(i, M_PFTEMP);
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break;
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@ -6056,6 +6061,8 @@ pf_sctp_multihome_detach_addr(const struct pf_kstate *s)
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if (pf_addr_cmp(&i->addr,
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&s->key[PF_SK_WIRE]->addr[s->direction == PF_IN],
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s->key[PF_SK_WIRE]->af) == 0) {
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SDT_PROBE3(pf, sctp, multihome, remove,
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key.v_tag, s, i);
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TAILQ_REMOVE(&ep->sources, i, entry);
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free(i, M_PFTEMP);
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break;
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@ -6113,6 +6120,7 @@ pf_sctp_multihome_add_addr(struct pf_pdesc *pd, struct pf_addr *a, uint32_t v_ta
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i->af = pd->af;
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memcpy(&i->addr, a, sizeof(*a));
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TAILQ_INSERT_TAIL(&ep->sources, i, entry);
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SDT_PROBE2(pf, sctp, multihome, add, v_tag, i);
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PF_SCTP_ENDPOINTS_UNLOCK();
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}
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