1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI_INET_DIAG_H_ 3 #define _UAPI_INET_DIAG_H_ 4 5 #include <linux/types.h> 6 7 /* Just some random number */ 8 #define TCPDIAG_GETSOCK 18 9 #define DCCPDIAG_GETSOCK 19 10 11 #define INET_DIAG_GETSOCK_MAX 24 12 13 /* Socket identity */ 14 struct inet_diag_sockid { 15 __be16 idiag_sport; 16 __be16 idiag_dport; 17 __be32 idiag_src[4]; 18 __be32 idiag_dst[4]; 19 __u32 idiag_if; 20 __u32 idiag_cookie[2]; 21 #define INET_DIAG_NOCOOKIE (~0U) 22 }; 23 24 /* Request structure */ 25 26 struct inet_diag_req { 27 __u8 idiag_family; /* Family of addresses. */ 28 __u8 idiag_src_len; 29 __u8 idiag_dst_len; 30 __u8 idiag_ext; /* Query extended information */ 31 32 struct inet_diag_sockid id; 33 34 __u32 idiag_states; /* States to dump */ 35 __u32 idiag_dbs; /* Tables to dump (NI) */ 36 }; 37 38 struct inet_diag_req_v2 { 39 __u8 sdiag_family; 40 __u8 sdiag_protocol; 41 __u8 idiag_ext; 42 __u8 pad; 43 __u32 idiag_states; 44 struct inet_diag_sockid id; 45 }; 46 47 /* 48 * SOCK_RAW sockets require the underlied protocol to be 49 * additionally specified so we can use @pad member for 50 * this, but we can't rename it because userspace programs 51 * still may depend on this name. Instead lets use another 52 * structure definition as an alias for struct 53 * @inet_diag_req_v2. 54 */ 55 struct inet_diag_req_raw { 56 __u8 sdiag_family; 57 __u8 sdiag_protocol; 58 __u8 idiag_ext; 59 __u8 sdiag_raw_protocol; 60 __u32 idiag_states; 61 struct inet_diag_sockid id; 62 }; 63 64 enum { 65 INET_DIAG_REQ_NONE, 66 INET_DIAG_REQ_BYTECODE, 67 }; 68 69 #define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE 70 71 /* Bytecode is sequence of 4 byte commands followed by variable arguments. 72 * All the commands identified by "code" are conditional jumps forward: 73 * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be 74 * length of the command and its arguments. 75 */ 76 77 struct inet_diag_bc_op { 78 unsigned char code; 79 unsigned char yes; 80 unsigned short no; 81 }; 82 83 enum { 84 INET_DIAG_BC_NOP, 85 INET_DIAG_BC_JMP, 86 INET_DIAG_BC_S_GE, 87 INET_DIAG_BC_S_LE, 88 INET_DIAG_BC_D_GE, 89 INET_DIAG_BC_D_LE, 90 INET_DIAG_BC_AUTO, 91 INET_DIAG_BC_S_COND, 92 INET_DIAG_BC_D_COND, 93 INET_DIAG_BC_DEV_COND, /* u32 ifindex */ 94 INET_DIAG_BC_MARK_COND, 95 }; 96 97 struct inet_diag_hostcond { 98 __u8 family; 99 __u8 prefix_len; 100 int port; 101 __be32 addr[0]; 102 }; 103 104 struct inet_diag_markcond { 105 __u32 mark; 106 __u32 mask; 107 }; 108 109 /* Base info structure. It contains socket identity (addrs/ports/cookie) 110 * and, alas, the information shown by netstat. */ 111 struct inet_diag_msg { 112 __u8 idiag_family; 113 __u8 idiag_state; 114 __u8 idiag_timer; 115 __u8 idiag_retrans; 116 117 struct inet_diag_sockid id; 118 119 __u32 idiag_expires; 120 __u32 idiag_rqueue; 121 __u32 idiag_wqueue; 122 __u32 idiag_uid; 123 __u32 idiag_inode; 124 }; 125 126 /* Extensions */ 127 128 enum { 129 INET_DIAG_NONE, 130 INET_DIAG_MEMINFO, 131 INET_DIAG_INFO, 132 INET_DIAG_VEGASINFO, 133 INET_DIAG_CONG, 134 INET_DIAG_TOS, 135 INET_DIAG_TCLASS, 136 INET_DIAG_SKMEMINFO, 137 INET_DIAG_SHUTDOWN, 138 INET_DIAG_DCTCPINFO, 139 INET_DIAG_PROTOCOL, /* response attribute only */ 140 INET_DIAG_SKV6ONLY, 141 INET_DIAG_LOCALS, 142 INET_DIAG_PEERS, 143 INET_DIAG_PAD, 144 INET_DIAG_MARK, 145 INET_DIAG_BBRINFO, 146 INET_DIAG_CLASS_ID, 147 INET_DIAG_MD5SIG, 148 __INET_DIAG_MAX, 149 }; 150 151 #define INET_DIAG_MAX (__INET_DIAG_MAX - 1) 152 153 /* INET_DIAG_MEM */ 154 155 struct inet_diag_meminfo { 156 __u32 idiag_rmem; 157 __u32 idiag_wmem; 158 __u32 idiag_fmem; 159 __u32 idiag_tmem; 160 }; 161 162 /* INET_DIAG_VEGASINFO */ 163 164 struct tcpvegas_info { 165 __u32 tcpv_enabled; 166 __u32 tcpv_rttcnt; 167 __u32 tcpv_rtt; 168 __u32 tcpv_minrtt; 169 }; 170 171 /* INET_DIAG_DCTCPINFO */ 172 173 struct tcp_dctcp_info { 174 __u16 dctcp_enabled; 175 __u16 dctcp_ce_state; 176 __u32 dctcp_alpha; 177 __u32 dctcp_ab_ecn; 178 __u32 dctcp_ab_tot; 179 }; 180 181 /* INET_DIAG_BBRINFO */ 182 183 struct tcp_bbr_info { 184 /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */ 185 __u32 bbr_bw_lo; /* lower 32 bits of bw */ 186 __u32 bbr_bw_hi; /* upper 32 bits of bw */ 187 __u32 bbr_min_rtt; /* min-filtered RTT in uSec */ 188 __u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */ 189 __u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */ 190 }; 191 192 union tcp_cc_info { 193 struct tcpvegas_info vegas; 194 struct tcp_dctcp_info dctcp; 195 struct tcp_bbr_info bbr; 196 }; 197 #endif /* _UAPI_INET_DIAG_H_ */ 198