/*
* This file is auto - generated . Modifications will be lost .
*
* See https : //android.googlesource.com/platform/bionic/+/master/libc/kernel/
* for more information .
*/
#ifndef _UAPI_LINUX_DCCP_H
#define _UAPI_LINUX_DCCP_H
#include <linux/types.h>
#include <asm /byteorder.h>
struct dccp_hdr {
__be16 dccph_sport, dccph_dport;
__u8 dccph_doff;
#ifdef __LITTLE_ENDIAN_BITFIELD
__u8 dccph_cscov : 4 , dccph_ccval : 4 ;
#elif defined (__BIG_ENDIAN_BITFIELD)
__u8 dccph_ccval : 4 , dccph_cscov : 4 ;
#else
#error "Adjust your <asm/byteorder.h> defines"
#endif
__sum16 dccph_checksum;
#ifdef __LITTLE_ENDIAN_BITFIELD
__u8 dccph_x : 1 , dccph_type : 4 , dccph_reserved : 3 ;
#elif defined (__BIG_ENDIAN_BITFIELD)
__u8 dccph_reserved : 3 , dccph_type : 4 , dccph_x : 1 ;
#else
#error "Adjust your <asm/byteorder.h> defines"
#endif
__u8 dccph_seq2;
__be16 dccph_seq;
};
struct dccp_hdr_ext {
__be32 dccph_seq_low;
};
struct dccp_hdr_request {
__be32 dccph_req_service;
};
struct dccp_hdr_ack_bits {
__be16 dccph_reserved1;
__be16 dccph_ack_nr_high;
__be32 dccph_ack_nr_low;
};
struct dccp_hdr_response {
struct dccp_hdr_ack_bits dccph_resp_ack;
__be32 dccph_resp_service;
};
struct dccp_hdr_reset {
struct dccp_hdr_ack_bits dccph_reset_ack;
__u8 dccph_reset_code, dccph_reset_data[3 ];
};
enum dccp_pkt_type {
DCCP_PKT_REQUEST = 0 ,
DCCP_PKT_RESPONSE,
DCCP_PKT_DATA,
DCCP_PKT_ACK,
DCCP_PKT_DATAACK,
DCCP_PKT_CLOSEREQ,
DCCP_PKT_CLOSE,
DCCP_PKT_RESET,
DCCP_PKT_SYNC,
DCCP_PKT_SYNCACK,
DCCP_PKT_INVALID,
};
#define DCCP_NR_PKT_TYPES DCCP_PKT_INVALID
enum dccp_reset_codes {
DCCP_RESET_CODE_UNSPECIFIED = 0 ,
DCCP_RESET_CODE_CLOSED,
DCCP_RESET_CODE_ABORTED,
DCCP_RESET_CODE_NO_CONNECTION,
DCCP_RESET_CODE_PACKET_ERROR,
DCCP_RESET_CODE_OPTION_ERROR,
DCCP_RESET_CODE_MANDATORY_ERROR,
DCCP_RESET_CODE_CONNECTION_REFUSED,
DCCP_RESET_CODE_BAD_SERVICE_CODE,
DCCP_RESET_CODE_TOO_BUSY,
DCCP_RESET_CODE_BAD_INIT_COOKIE,
DCCP_RESET_CODE_AGGRESSION_PENALTY,
DCCP_MAX_RESET_CODES
};
enum {
DCCPO_PADDING = 0 ,
DCCPO_MANDATORY = 1 ,
DCCPO_MIN_RESERVED = 3 ,
DCCPO_MAX_RESERVED = 31 ,
DCCPO_CHANGE_L = 32 ,
DCCPO_CONFIRM_L = 33 ,
DCCPO_CHANGE_R = 34 ,
DCCPO_CONFIRM_R = 35 ,
DCCPO_NDP_COUNT = 37 ,
DCCPO_ACK_VECTOR_0 = 38 ,
DCCPO_ACK_VECTOR_1 = 39 ,
DCCPO_TIMESTAMP = 41 ,
DCCPO_TIMESTAMP_ECHO = 42 ,
DCCPO_ELAPSED_TIME = 43 ,
DCCPO_MAX = 45 ,
DCCPO_MIN_RX_CCID_SPECIFIC = 128 ,
DCCPO_MAX_RX_CCID_SPECIFIC = 191 ,
DCCPO_MIN_TX_CCID_SPECIFIC = 192 ,
DCCPO_MAX_TX_CCID_SPECIFIC = 255 ,
};
#define DCCP_SINGLE_OPT_MAXLEN 253
enum {
DCCPC_CCID2 = 2 ,
DCCPC_CCID3 = 3 ,
};
enum dccp_feature_numbers {
DCCPF_RESERVED = 0 ,
DCCPF_CCID = 1 ,
DCCPF_SHORT_SEQNOS = 2 ,
DCCPF_SEQUENCE_WINDOW = 3 ,
DCCPF_ECN_INCAPABLE = 4 ,
DCCPF_ACK_RATIO = 5 ,
DCCPF_SEND_ACK_VECTOR = 6 ,
DCCPF_SEND_NDP_COUNT = 7 ,
DCCPF_MIN_CSUM_COVER = 8 ,
DCCPF_DATA_CHECKSUM = 9 ,
DCCPF_MIN_CCID_SPECIFIC = 128 ,
DCCPF_SEND_LEV_RATE = 192 ,
DCCPF_MAX_CCID_SPECIFIC = 255 ,
};
enum dccp_cmsg_type {
DCCP_SCM_PRIORITY = 1 ,
DCCP_SCM_QPOLICY_MAX = 0 xFFFF,
DCCP_SCM_MAX
};
enum dccp_packet_dequeueing_policy {
DCCPQ_POLICY_SIMPLE,
DCCPQ_POLICY_PRIO,
DCCPQ_POLICY_MAX
};
#define DCCP_SOCKOPT_PACKET_SIZE 1
#define DCCP_SOCKOPT_SERVICE 2
#define DCCP_SOCKOPT_CHANGE_L 3
#define DCCP_SOCKOPT_CHANGE_R 4
#define DCCP_SOCKOPT_GET_CUR_MPS 5
#define DCCP_SOCKOPT_SERVER_TIMEWAIT 6
#define DCCP_SOCKOPT_SEND_CSCOV 10
#define DCCP_SOCKOPT_RECV_CSCOV 11
#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12
#define DCCP_SOCKOPT_CCID 13
#define DCCP_SOCKOPT_TX_CCID 14
#define DCCP_SOCKOPT_RX_CCID 15
#define DCCP_SOCKOPT_QPOLICY_ID 16
#define DCCP_SOCKOPT_QPOLICY_TXQLEN 17
#define DCCP_SOCKOPT_CCID_RX_INFO 128
#define DCCP_SOCKOPT_CCID_TX_INFO 192
#define DCCP_SERVICE_LIST_MAX_LEN 32
#endif
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(vorverarbeitet am 2026-06-28)
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