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inet_diag.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _INET_DIAG_H_ #define _INET_DIAG_H_ #include <linux/types.h> /* Just some random number */ #define TCPDIAG_GETSOCK 18 #define DCCPDIAG_GETSOCK 19 #define INET_DIAG_GETSOCK_MAX 24 /* Socket identity */ struct inet_diag_sockid { __be16 idiag_sport; __be16 idiag_dport; __be32 idiag_src[4]; __be32 idiag_dst[4]; __u32 idiag_if; __u32 idiag_cookie[2]; #define INET_DIAG_NOCOOKIE (~0U) }; /* Request structure */ struct inet_diag_req { __u8 idiag_family; /* Family of addresses. */ __u8 idiag_src_len; __u8 idiag_dst_len; __u8 idiag_ext; /* Query extended information */ struct inet_diag_sockid id; __u32 idiag_states; /* States to dump */ __u32 idiag_dbs; /* Tables to dump (NI) */ }; struct inet_diag_req_v2 { __u8 sdiag_family; __u8 sdiag_protocol; __u8 idiag_ext; __u8 pad; __u32 idiag_states; struct inet_diag_sockid id; }; /* * SOCK_RAW sockets require the underlied protocol to be * additionally specified so we can use @pad member for * this, but we can't rename it because userspace programs * still may depend on this name. Instead lets use another * structure definition as an alias for struct * @inet_diag_req_v2. */ struct inet_diag_req_raw { __u8 sdiag_family; __u8 sdiag_protocol; __u8 idiag_ext; __u8 sdiag_raw_protocol; __u32 idiag_states; struct inet_diag_sockid id; }; enum { INET_DIAG_REQ_NONE, INET_DIAG_REQ_BYTECODE, INET_DIAG_REQ_SK_BPF_STORAGES, INET_DIAG_REQ_PROTOCOL, __INET_DIAG_REQ_MAX, }; #define INET_DIAG_REQ_MAX (__INET_DIAG_REQ_MAX - 1) /* Bytecode is sequence of 4 byte commands followed by variable arguments. * All the commands identified by "code" are conditional jumps forward: * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be * length of the command and its arguments. */ struct inet_diag_bc_op { unsigned char code; unsigned char yes; unsigned short no; }; enum { INET_DIAG_BC_NOP, INET_DIAG_BC_JMP, INET_DIAG_BC_S_GE, INET_DIAG_BC_S_LE, INET_DIAG_BC_D_GE, INET_DIAG_BC_D_LE, INET_DIAG_BC_AUTO, INET_DIAG_BC_S_COND, INET_DIAG_BC_D_COND, INET_DIAG_BC_DEV_COND, /* u32 ifindex */ INET_DIAG_BC_MARK_COND, INET_DIAG_BC_S_EQ, INET_DIAG_BC_D_EQ, INET_DIAG_BC_CGROUP_COND, /* u64 cgroup v2 ID */ }; struct inet_diag_hostcond { __u8 family; __u8 prefix_len; int port; __be32 addr[]; }; struct inet_diag_markcond { __u32 mark; __u32 mask; }; /* Base info structure. It contains socket identity (addrs/ports/cookie) * and, alas, the information shown by netstat. */ struct inet_diag_msg { __u8 idiag_family; __u8 idiag_state; __u8 idiag_timer; __u8 idiag_retrans; struct inet_diag_sockid id; __u32 idiag_expires; __u32 idiag_rqueue; __u32 idiag_wqueue; __u32 idiag_uid; __u32 idiag_inode; }; /* Extensions */ enum { INET_DIAG_NONE, INET_DIAG_MEMINFO, INET_DIAG_INFO, INET_DIAG_VEGASINFO, INET_DIAG_CONG, INET_DIAG_TOS, INET_DIAG_TCLASS, INET_DIAG_SKMEMINFO, INET_DIAG_SHUTDOWN, /* * Next extenstions cannot be requested in struct inet_diag_req_v2: * its field idiag_ext has only 8 bits. */ INET_DIAG_DCTCPINFO, /* request as INET_DIAG_VEGASINFO */ INET_DIAG_PROTOCOL, /* response attribute only */ INET_DIAG_SKV6ONLY, INET_DIAG_LOCALS, INET_DIAG_PEERS, INET_DIAG_PAD, INET_DIAG_MARK, /* only with CAP_NET_ADMIN */ INET_DIAG_BBRINFO, /* request as INET_DIAG_VEGASINFO */ INET_DIAG_CLASS_ID, /* request as INET_DIAG_TCLASS */ INET_DIAG_MD5SIG, INET_DIAG_ULP_INFO, INET_DIAG_SK_BPF_STORAGES, INET_DIAG_CGROUP_ID, INET_DIAG_SOCKOPT, __INET_DIAG_MAX, }; #define INET_DIAG_MAX (__INET_DIAG_MAX - 1) enum { INET_ULP_INFO_UNSPEC, INET_ULP_INFO_NAME, INET_ULP_INFO_TLS, INET_ULP_INFO_MPTCP, __INET_ULP_INFO_MAX, }; #define INET_ULP_INFO_MAX (__INET_ULP_INFO_MAX - 1) /* INET_DIAG_MEM */ struct inet_diag_meminfo { __u32 idiag_rmem; __u32 idiag_wmem; __u32 idiag_fmem; __u32 idiag_tmem; }; /* INET_DIAG_SOCKOPT */ struct inet_diag_sockopt { __u8 recverr:1, is_icsk:1, freebind:1, hdrincl:1, mc_loop:1, transparent:1, mc_all:1, nodefrag:1; __u8 bind_address_no_port:1, recverr_rfc4884:1, defer_connect:1, unused:5; }; /* INET_DIAG_VEGASINFO */ struct tcpvegas_info { __u32 tcpv_enabled; __u32 tcpv_rttcnt; __u32 tcpv_rtt; __u32 tcpv_minrtt; }; /* INET_DIAG_DCTCPINFO */ struct tcp_dctcp_info { __u16 dctcp_enabled; __u16 dctcp_ce_state; __u32 dctcp_alpha; __u32 dctcp_ab_ecn; __u32 dctcp_ab_tot; }; /* INET_DIAG_BBRINFO */ struct tcp_bbr_info { /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */ __u32 bbr_bw_lo; /* lower 32 bits of bw */ __u32 bbr_bw_hi; /* upper 32 bits of bw */ __u32 bbr_min_rtt; /* min-filtered RTT in uSec */ __u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */ __u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */ }; union tcp_cc_info { struct tcpvegas_info vegas; struct tcp_dctcp_info dctcp; struct tcp_bbr_info bbr; }; #endif /* _INET_DIAG_H_ */