diff --git a/libc/kernel/common/linux/dccp.h b/libc/kernel/common/linux/dccp.h
new file mode 100644
index 0000000..5e33777
--- /dev/null
+++ b/libc/kernel/common/linux/dccp.h
@@ -0,0 +1,135 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_DCCP_H
+#define _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
+ __u16 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 {
+ 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_CCID_SPECIFIC = 128,
+ DCCPO_MAX_CCID_SPECIFIC = 255,
+};
+
+enum {
+ DCCPF_RESERVED = 0,
+ DCCPF_CCID = 1,
+ DCCPF_SEQUENCE_WINDOW = 3,
+ DCCPF_ACK_RATIO = 5,
+ DCCPF_SEND_ACK_VECTOR = 6,
+ DCCPF_SEND_NDP_COUNT = 7,
+
+ DCCPF_MIN_CCID_SPECIFIC = 128,
+ DCCPF_MAX_CCID_SPECIFIC = 255,
+};
+
+struct dccp_so_feat {
+ __u8 dccpsf_feat;
+ __u8 *dccpsf_val;
+ __u8 dccpsf_len;
+};
+
+#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_CCID_RX_INFO 128
+#define DCCP_SOCKOPT_CCID_TX_INFO 192
+
+#define DCCP_SERVICE_LIST_MAX_LEN 32
+
+#endif