static bool ip_vs_sip_ct_match(const struct ip_vs_conn_param *p, struct ip_vs_conn *ct) { bool ret = false; if (ct->af == p->af && ip_vs_addr_equal(p->af, p->caddr, &ct->caddr) && ip_vs_addr_equal(p->protocol == IPPROTO_IP ? AF_UNSPEC : p->af, p->vaddr, &ct->vaddr) && ct->vport == p->vport && ct->flags & IP_VS_CONN_F_TEMPLATE && ct->protocol == p->protocol && ct->pe_data && ct->pe_data_len == p->pe_data_len && !memcmp(ct->pe_data, p->pe_data, p->pe_data_len)) ret = true; IP_VS_DBG_BUF(9, "SIP template match %s %s->%s:%d %s\n", ip_vs_proto_name(p->protocol), IP_VS_DEBUG_CALLID(p->pe_data, p->pe_data_len), IP_VS_DBG_ADDR(p->af, p->vaddr), ntohs(p->vport), ret ? "hit" : "not hit"); return ret; }
/* return NF_STOLEN (sent) or NF_ACCEPT if local=1 (not sent) */ static inline int ip_vs_nat_send_or_cont(int pf, struct sk_buff *skb, struct ip_vs_conn *cp, int local) { int ret = NF_STOLEN; skb->ipvs_property = 1; if (likely(!(cp->flags & IP_VS_CONN_F_NFCT))) ip_vs_notrack(skb); else ip_vs_update_conntrack(skb, cp, 1); /* Remove the early_demux association unless it's bound for the * exact same port and address on this host after translation. */ if (!local || cp->vport != cp->dport || !ip_vs_addr_equal(cp->af, &cp->vaddr, &cp->daddr)) ip_vs_drop_early_demux_sk(skb); if (!local) { skb_forward_csum(skb); if (!skb->sk) skb_sender_cpu_clear(skb); NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb, NULL, skb_dst(skb)->dev, dst_output_sk); } else ret = NF_ACCEPT; return ret; }