diff options
Diffstat (limited to 'net/core/flow_dissector.c')
| -rw-r--r-- | net/core/flow_dissector.c | 65 |
1 files changed, 49 insertions, 16 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index 53f96e4f7bf5..ce9eeeb7c024 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -152,7 +152,11 @@ skb_flow_dissect_tunnel_info(const struct sk_buff *skb, !dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL) && !dissector_uses_key(flow_dissector, - FLOW_DISSECTOR_KEY_ENC_PORTS)) + FLOW_DISSECTOR_KEY_ENC_PORTS) && + !dissector_uses_key(flow_dissector, + FLOW_DISSECTOR_KEY_ENC_IP) && + !dissector_uses_key(flow_dissector, + FLOW_DISSECTOR_KEY_ENC_OPTS)) return; info = skb_tunnel_info(skb); @@ -212,6 +216,31 @@ skb_flow_dissect_tunnel_info(const struct sk_buff *skb, tp->src = key->tp_src; tp->dst = key->tp_dst; } + + if (dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_ENC_IP)) { + struct flow_dissector_key_ip *ip; + + ip = skb_flow_dissector_target(flow_dissector, + FLOW_DISSECTOR_KEY_ENC_IP, + target_container); + ip->tos = key->tos; + ip->ttl = key->ttl; + } + + if (dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_ENC_OPTS)) { + struct flow_dissector_key_enc_opts *enc_opt; + + enc_opt = skb_flow_dissector_target(flow_dissector, + FLOW_DISSECTOR_KEY_ENC_OPTS, + target_container); + + if (info->options_len) { + enc_opt->len = info->options_len; + ip_tunnel_info_opts_get(enc_opt->data, info); + enc_opt->dst_opt_type = info->key.tun_flags & + TUNNEL_OPTIONS_PRESENT; + } + } } EXPORT_SYMBOL(skb_flow_dissect_tunnel_info); @@ -589,7 +618,7 @@ bool __skb_flow_dissect(const struct sk_buff *skb, struct flow_dissector_key_tags *key_tags; struct flow_dissector_key_vlan *key_vlan; enum flow_dissect_ret fdret; - bool skip_vlan = false; + enum flow_dissector_key_id dissector_vlan = FLOW_DISSECTOR_KEY_MAX; int num_hdrs = 0; u8 ip_proto = 0; bool ret; @@ -748,14 +777,14 @@ proto_again: } case htons(ETH_P_8021AD): case htons(ETH_P_8021Q): { - const struct vlan_hdr *vlan; + const struct vlan_hdr *vlan = NULL; struct vlan_hdr _vlan; - bool vlan_tag_present = skb && skb_vlan_tag_present(skb); + __be16 saved_vlan_tpid = proto; - if (vlan_tag_present) + if (dissector_vlan == FLOW_DISSECTOR_KEY_MAX && + skb && skb_vlan_tag_present(skb)) { proto = skb->protocol; - - if (!vlan_tag_present || eth_type_vlan(skb->protocol)) { + } else { vlan = __skb_header_pointer(skb, nhoff, sizeof(_vlan), data, hlen, &_vlan); if (!vlan) { @@ -765,20 +794,23 @@ proto_again: proto = vlan->h_vlan_encapsulated_proto; nhoff += sizeof(*vlan); - if (skip_vlan) { - fdret = FLOW_DISSECT_RET_PROTO_AGAIN; - break; - } } - skip_vlan = true; - if (dissector_uses_key(flow_dissector, - FLOW_DISSECTOR_KEY_VLAN)) { + if (dissector_vlan == FLOW_DISSECTOR_KEY_MAX) { + dissector_vlan = FLOW_DISSECTOR_KEY_VLAN; + } else if (dissector_vlan == FLOW_DISSECTOR_KEY_VLAN) { + dissector_vlan = FLOW_DISSECTOR_KEY_CVLAN; + } else { + fdret = FLOW_DISSECT_RET_PROTO_AGAIN; + break; + } + + if (dissector_uses_key(flow_dissector, dissector_vlan)) { key_vlan = skb_flow_dissector_target(flow_dissector, - FLOW_DISSECTOR_KEY_VLAN, + dissector_vlan, target_container); - if (vlan_tag_present) { + if (!vlan) { key_vlan->vlan_id = skb_vlan_tag_get_id(skb); key_vlan->vlan_priority = (skb_vlan_tag_get_prio(skb) >> VLAN_PRIO_SHIFT); @@ -789,6 +821,7 @@ proto_again: (ntohs(vlan->h_vlan_TCI) & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; } + key_vlan->vlan_tpid = saved_vlan_tpid; } fdret = FLOW_DISSECT_RET_PROTO_AGAIN; |