N  ˆÀÆ 0Äà  ˆÇÆ „ ì€?ÅÄÃ?÷ /* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _LINUX_DROPREASON_CORE_H #define _LINUX_DROPREASON_CORE_H #define DEFINE_DROP_REASON(FN, FNe) \ FN(NOT_SPECIFIED) \ FN(NO_SOCKET) \ FN(SOCKET_CLOSE) \ FN(SOCKET_FILTER) \ FN(SOCKET_RCVBUFF) \ FN(UNIX_DISCONNECT) \ FN(PKT_TOO_SMALL) \ FN(TCP_CSUM) \ FN(UDP_CSUM) \ FN(NETFILTER_DROP) \ FN(OTHERHOST) \ FN(IP_CSUM) \ FN(IP_INHDR) \ FN(IP_RPFILTER) \ FN(UNICAST_IN_L2_MULTICAST) \ FN(XFRM_POLICY) \ FN(IP_NOPROTO) \ FN(PROTO_MEM) \ FN(TCP_MD5NOTFOUND) \ FN(TCP_MD5UNEXPECTED) \ FN(TCP_MD5FAILURE) \ FN(SOCKET_BACKLOG) \ FN(TCP_FLAGS) \ FN(TCP_ABORT_ON_DATA) \ FN(TCP_ZEROWINDOW) \ FN(TCP_OLD_DATA) \ FN(TCP_OVERWINDOW) \ FN(TCP_OFOMERGE) \ FN(TCP_RFC7323_PAWS) \ FN(TCP_RFC7323_PAWS_ACK) \ FN(TCP_RFC7323_TW_PAWS) \ FN(TCP_RFC7323_TSECR) \ FN(TCP_LISTEN_OVERFLOW) \ FN(TCP_OLD_SEQUENCE) \ FN(TCP_INVALID_SEQUENCE) \ FN(TCP_INVALID_ACK_SEQUENCE) \ FN(TCP_RESET) \ FN(TCP_INVALID_SYN) \ FN(TCP_CLOSE) \ FN(TCP_FASTOPEN) \ FN(TCP_OLD_ACK) \ FN(TCP_TOO_OLD_ACK) \ FN(TCP_ACK_UNSENT_DATA) \ FN(TCP_OFO_QUEUE_PRUNE) \ FN(TCP_OFO_DROP) \ FN(IP_OUTNOROUTES) \ FN(BPF_CGROUP_EGRESS) \ FN(IPV6DISABLED) \ FN(NEIGH_CREATEFAIL) \ FN(NEIGH_FAILED) \ FN(NEIGH_QUEUEFULL) \ FN(NEIGH_DEAD) \ FN(NEIGH_HH_FILLFAIL) \ FN(TC_EGRESS) \ FN(SECURITY_HOOK) \ FN(QDISC_DROP) \ FN(QDISC_OVERLIMIT) \ FN(QDISC_CONGESTED) \ FN(CAKE_FLOOD) \ FN(FQ_BAND_LIMIT) \ FN(FQ_HORIZON_LIMIT) \ FN(FQ_FLOW_LIMIT) \ FN(CPU_BACKLOG) \ FN(XDP) \ FN(TC_INGRESS) \ FN(UNHANDLED_PROTO) \ FN(SKB_CSUM) \ FN(SKB_GSO_SEG) \ FN(SKB_UCOPY_FAULT) \ FN(DEV_HDR) \ FN(DEV_READY) \ FN(FULL_RING) \ FN(NOMEM) \ FN(HDR_TRUNC) \ FN(TAP_FILTER) \ FN(TAP_TXFILTER) \ FN(ICMP_CSUM) \ FN(INVALID_PROTO) \ FN(IP_INADDRERRORS) \ FN(IP_INNOROUTES) \ FN(IP_LOCAL_SOURCE) \ FN(IP_INVALID_SOURCE) \ FN(IP_LOCALNET) \ FN(IP_INVALID_DEST) \ FN(PKT_TOO_BIG) \ FN(DUP_FRAG) \ FN(FRAG_REASM_TIMEOUT) \ FN(FRAG_TOO_FAR) \ FN(TCP_MINTTL) \ FN(IPV6_BAD_EXTHDR) \ FN(IPV6_NDISC_FRAG) \ FN(IPV6_NDISC_HOP_LIMIT) \ FN(IPV6_NDISC_BAD_CODE) \ FN(IPV6_NDISC_BAD_OPTIONS) \ FN(IPV6_NDISC_NS_OTHERHOST) \ FN(QUEUE_PURGE) \ FN(TC_COOKIE_ERROR) \ FN(PACKET_SOCK_ERROR) \ FN(TC_CHAIN_NOTFOUND) \ FN(TC_RECLASSIFY_LOOP) \ FN(VXLAN_INVALID_HDR) \ FN(VXLAN_VNI_NOT_FOUND) \ FN(MAC_INVALID_SOURCE) \ FN(VXLAN_ENTRY_EXISTS) \ FN(NO_TX_TARGET) \ FN(IP_TUNNEL_ECN) \ FN(TUNNEL_TXINFO) \ FN(LOCAL_MAC) \ FN(ARP_PVLAN_DISABLE) \ FN(MAC_IEEE_MAC_CONTROL) \ FN(BRIDGE_INGRESS_STP_STATE) \ FN(CAN_RX_INVALID_FRAME) \ FN(CANFD_RX_INVALID_FRAME) \ FN(CANXL_RX_INVALID_FRAME) \ FN(PFMEMALLOC) \ FNe(MAX) /** * enum skb_drop_reason - the reasons of skb drops * * The reason of skb drop, which is used in kfree_skb_reason(). */ enum skb_drop_reason { /** * @SKB_NOT_DROPPED_YET: skb is not dropped yet (used for no-drop case) */ SKB_NOT_DROPPED_YET = 0, /** @SKB_CONSUMED: packet has been consumed */ SKB_CONSUMED, /** @SKB_DROP_REASON_NOT_SPECIFIED: drop reason is not specified */ SKB_DROP_REASON_NOT_SPECIFIED, /** * @SKB_DROP_REASON_NO_SOCKET: no valid socket that can be used. * Reason could be one of three cases: * 1) no established/listening socket found during lookup process * 2) no valid request socket during 3WHS process * 3) no valid child socket during 3WHS process */ SKB_DROP_REASON_NO_SOCKET, /** @SKB_DROP_REASON_SOCKET_CLOSE: socket is close()d */ SKB_DROP_REASON_SOCKET_CLOSE, /** @SKB_DROP_REASON_SOCKET_FILTER: dropped by socket filter */ SKB_DROP_REASON_SOCKET_FILTER, /** @SKB_DROP_REASON_SOCKET_RCVBUFF: socket receive buff is full */ SKB_DROP_REASON_SOCKET_RCVBUFF, /** * @SKB_DROP_REASON_UNIX_DISCONNECT: recv queue is purged when SOCK_DGRAM * or SOCK_SEQPACKET socket re-connect()s to another socket or notices * during send() that the peer has been close()d. */