2 * Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
3 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
4 * Copyright (c) 2017-2019 The strace developers.
7 * SPDX-License-Identifier: LGPL-2.1-or-later
12 #include "netlink_sock_diag.h"
14 #include "print_fields.h"
16 #include <linux/sock_diag.h>
17 #include <linux/unix_diag.h>
19 #include "xlat/unix_diag_attrs.h"
20 #include "xlat/unix_diag_show.h"
22 DECL_NETLINK_DIAG_DECODER(decode_unix_diag_req)
24 struct unix_diag_req req = { .sdiag_family = family };
25 const size_t offset = sizeof(req.sdiag_family);
27 PRINT_FIELD_XVAL("{", req, sdiag_family, addrfams, "AF_???");
29 if (len >= sizeof(req)) {
30 if (!umoven_or_printaddr(tcp, addr + offset,
32 (char *) &req + offset)) {
33 PRINT_FIELD_U("", req, sdiag_protocol);
34 PRINT_FIELD_FLAGS(", ", req, udiag_states,
35 tcp_state_flags, "1<<TCP_???");
36 PRINT_FIELD_U(", ", req, udiag_ino);
37 PRINT_FIELD_FLAGS(", ", req, udiag_show,
38 unix_diag_show, "UDIAG_SHOW_???");
39 PRINT_FIELD_COOKIE(", ", req, udiag_cookie);
47 decode_unix_diag_vfs(struct tcb *const tcp,
48 const kernel_ulong_t addr,
49 const unsigned int len,
50 const void *const opaque_data)
52 struct unix_diag_vfs uv;
56 if (umove_or_printaddr(tcp, addr, &uv))
59 PRINT_FIELD_DEV("{", uv, udiag_vfs_dev);
60 PRINT_FIELD_U(", ", uv, udiag_vfs_ino);
67 print_inode(struct tcb *const tcp,
69 const size_t elem_size,
70 void *const opaque_data)
72 tprintf("%" PRIu32, *(uint32_t *) elem_buf);
78 decode_unix_diag_inode(struct tcb *const tcp,
79 const kernel_ulong_t addr,
80 const unsigned int len,
81 const void *const opaque_data)
84 const size_t nmemb = len / sizeof(inode);
89 print_array(tcp, addr, nmemb, &inode, sizeof(inode),
90 tfetch_mem, print_inode, 0);
96 decode_unix_diag_rqlen(struct tcb *const tcp,
97 const kernel_ulong_t addr,
98 const unsigned int len,
99 const void *const opaque_data)
101 struct unix_diag_rqlen rql;
103 if (len < sizeof(rql))
105 if (umove_or_printaddr(tcp, addr, &rql))
108 PRINT_FIELD_U("{", rql, udiag_rqueue);
109 PRINT_FIELD_U(", ", rql, udiag_wqueue);
115 static const nla_decoder_t unix_diag_msg_nla_decoders[] = {
116 [UNIX_DIAG_NAME] = decode_nla_str,
117 [UNIX_DIAG_VFS] = decode_unix_diag_vfs,
118 [UNIX_DIAG_PEER] = decode_nla_u32,
119 [UNIX_DIAG_ICONS] = decode_unix_diag_inode,
120 [UNIX_DIAG_RQLEN] = decode_unix_diag_rqlen,
121 [UNIX_DIAG_MEMINFO] = decode_nla_meminfo,
122 [UNIX_DIAG_SHUTDOWN] = decode_nla_u8,
123 [UNIX_DIAG_UID] = decode_nla_uid
126 DECL_NETLINK_DIAG_DECODER(decode_unix_diag_msg)
128 struct unix_diag_msg msg = { .udiag_family = family };
129 size_t offset = sizeof(msg.udiag_family);
130 bool decode_nla = false;
132 PRINT_FIELD_XVAL("{", msg, udiag_family, addrfams, "AF_???");
134 if (len >= sizeof(msg)) {
135 if (!umoven_or_printaddr(tcp, addr + offset,
136 sizeof(msg) - offset,
137 (char *) &msg + offset)) {
138 PRINT_FIELD_XVAL("", msg, udiag_type,
139 socktypes, "SOCK_???");
140 PRINT_FIELD_XVAL(", ", msg, udiag_state,
141 tcp_states, "TCP_???");
142 PRINT_FIELD_U(", ", msg, udiag_ino);
143 PRINT_FIELD_COOKIE(", ", msg, udiag_cookie);
150 offset = NLMSG_ALIGN(sizeof(msg));
151 if (decode_nla && len > offset) {
153 decode_nlattr(tcp, addr + offset, len - offset,
154 unix_diag_attrs, "UNIX_DIAG_???",
155 unix_diag_msg_nla_decoders,
156 ARRAY_SIZE(unix_diag_msg_nla_decoders), NULL);