inet_diag.h (5014B) - Raw
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _INET_DIAG_H_ 3 #define _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 INET_DIAG_REQ_SK_BPF_STORAGES, 68 INET_DIAG_REQ_PROTOCOL, 69 __INET_DIAG_REQ_MAX, 70 }; 71 72 #define INET_DIAG_REQ_MAX (__INET_DIAG_REQ_MAX - 1) 73 74 /* Bytecode is sequence of 4 byte commands followed by variable arguments. 75 * All the commands identified by "code" are conditional jumps forward: 76 * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be 77 * length of the command and its arguments. 78 */ 79 80 struct inet_diag_bc_op { 81 unsigned char code; 82 unsigned char yes; 83 unsigned short no; 84 }; 85 86 enum { 87 INET_DIAG_BC_NOP, 88 INET_DIAG_BC_JMP, 89 INET_DIAG_BC_S_GE, 90 INET_DIAG_BC_S_LE, 91 INET_DIAG_BC_D_GE, 92 INET_DIAG_BC_D_LE, 93 INET_DIAG_BC_AUTO, 94 INET_DIAG_BC_S_COND, 95 INET_DIAG_BC_D_COND, 96 INET_DIAG_BC_DEV_COND, /* u32 ifindex */ 97 INET_DIAG_BC_MARK_COND, 98 INET_DIAG_BC_S_EQ, 99 INET_DIAG_BC_D_EQ, 100 INET_DIAG_BC_CGROUP_COND, /* u64 cgroup v2 ID */ 101 }; 102 103 struct inet_diag_hostcond { 104 __u8 family; 105 __u8 prefix_len; 106 int port; 107 __be32 addr[]; 108 }; 109 110 struct inet_diag_markcond { 111 __u32 mark; 112 __u32 mask; 113 }; 114 115 /* Base info structure. It contains socket identity (addrs/ports/cookie) 116 * and, alas, the information shown by netstat. */ 117 struct inet_diag_msg { 118 __u8 idiag_family; 119 __u8 idiag_state; 120 __u8 idiag_timer; 121 __u8 idiag_retrans; 122 123 struct inet_diag_sockid id; 124 125 __u32 idiag_expires; 126 __u32 idiag_rqueue; 127 __u32 idiag_wqueue; 128 __u32 idiag_uid; 129 __u32 idiag_inode; 130 }; 131 132 /* Extensions */ 133 134 enum { 135 INET_DIAG_NONE, 136 INET_DIAG_MEMINFO, 137 INET_DIAG_INFO, 138 INET_DIAG_VEGASINFO, 139 INET_DIAG_CONG, 140 INET_DIAG_TOS, 141 INET_DIAG_TCLASS, 142 INET_DIAG_SKMEMINFO, 143 INET_DIAG_SHUTDOWN, 144 145 /* 146 * Next extensions cannot be requested in struct inet_diag_req_v2: 147 * its field idiag_ext has only 8 bits. 148 */ 149 150 INET_DIAG_DCTCPINFO, /* request as INET_DIAG_VEGASINFO */ 151 INET_DIAG_PROTOCOL, /* response attribute only */ 152 INET_DIAG_SKV6ONLY, 153 INET_DIAG_LOCALS, 154 INET_DIAG_PEERS, 155 INET_DIAG_PAD, 156 INET_DIAG_MARK, /* only with CAP_NET_ADMIN */ 157 INET_DIAG_BBRINFO, /* request as INET_DIAG_VEGASINFO */ 158 INET_DIAG_CLASS_ID, /* request as INET_DIAG_TCLASS */ 159 INET_DIAG_MD5SIG, 160 INET_DIAG_ULP_INFO, 161 INET_DIAG_SK_BPF_STORAGES, 162 INET_DIAG_CGROUP_ID, 163 INET_DIAG_SOCKOPT, 164 __INET_DIAG_MAX, 165 }; 166 167 #define INET_DIAG_MAX (__INET_DIAG_MAX - 1) 168 169 enum { 170 INET_ULP_INFO_UNSPEC, 171 INET_ULP_INFO_NAME, 172 INET_ULP_INFO_TLS, 173 INET_ULP_INFO_MPTCP, 174 __INET_ULP_INFO_MAX, 175 }; 176 #define INET_ULP_INFO_MAX (__INET_ULP_INFO_MAX - 1) 177 178 /* INET_DIAG_MEM */ 179 180 struct inet_diag_meminfo { 181 __u32 idiag_rmem; 182 __u32 idiag_wmem; 183 __u32 idiag_fmem; 184 __u32 idiag_tmem; 185 }; 186 187 /* INET_DIAG_SOCKOPT */ 188 189 struct inet_diag_sockopt { 190 __u8 recverr:1, 191 is_icsk:1, 192 freebind:1, 193 hdrincl:1, 194 mc_loop:1, 195 transparent:1, 196 mc_all:1, 197 nodefrag:1; 198 __u8 bind_address_no_port:1, 199 recverr_rfc4884:1, 200 defer_connect:1, 201 unused:5; 202 }; 203 204 /* INET_DIAG_VEGASINFO */ 205 206 struct tcpvegas_info { 207 __u32 tcpv_enabled; 208 __u32 tcpv_rttcnt; 209 __u32 tcpv_rtt; 210 __u32 tcpv_minrtt; 211 }; 212 213 /* INET_DIAG_DCTCPINFO */ 214 215 struct tcp_dctcp_info { 216 __u16 dctcp_enabled; 217 __u16 dctcp_ce_state; 218 __u32 dctcp_alpha; 219 __u32 dctcp_ab_ecn; 220 __u32 dctcp_ab_tot; 221 }; 222 223 /* INET_DIAG_BBRINFO */ 224 225 struct tcp_bbr_info { 226 /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */ 227 __u32 bbr_bw_lo; /* lower 32 bits of bw */ 228 __u32 bbr_bw_hi; /* upper 32 bits of bw */ 229 __u32 bbr_min_rtt; /* min-filtered RTT in uSec */ 230 __u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */ 231 __u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */ 232 }; 233 234 union tcp_cc_info { 235 struct tcpvegas_info vegas; 236 struct tcp_dctcp_info dctcp; 237 struct tcp_bbr_info bbr; 238 }; 239 #endif /* _INET_DIAG_H_ */