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0ee16e43 MY |
1 | /* |
2 | * lsfd(1) - list file descriptors | |
3 | * | |
4 | * Copyright (C) 2022 Red Hat, Inc. All rights reserved. | |
5 | * Written by Masatake YAMATO <yamato@redhat.com> | |
6 | * | |
7 | * Very generally based on lsof(8) by Victor A. Abell <abe@purdue.edu> | |
8 | * It supports multiple OSes. lsfd specializes to Linux. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it would be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software Foundation, | |
22 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | */ | |
24 | #ifndef UTIL_LINUX_LSFD_SOCK_H | |
25 | #define UTIL_LINUX_LSFD_SOCK_H | |
26 | ||
7b50bd25 | 27 | #include <stdbool.h> |
0ee16e43 MY |
28 | #include <sys/stat.h> |
29 | ||
7b50bd25 MY |
30 | #include "libsmartcols.h" |
31 | ||
0ee16e43 MY |
32 | /* |
33 | * xinfo: eXtra inforation about sockets | |
34 | */ | |
35 | struct sock_xinfo { | |
36 | ino_t inode; /* inode in sockfs */ | |
37 | ino_t netns_inode; /* inode of netns where | |
38 | the socket belongs to */ | |
39 | const struct sock_xinfo_class *class; | |
40 | }; | |
41 | ||
7b50bd25 MY |
42 | struct sock { |
43 | struct file file; | |
44 | char *protoname; | |
45 | struct sock_xinfo *xinfo; | |
46 | }; | |
47 | ||
0ee16e43 | 48 | struct sock_xinfo_class { |
7b50bd25 MY |
49 | /* Methods for filling socket related columns */ |
50 | char * (*get_name)(struct sock_xinfo *, struct sock *); | |
51 | char * (*get_type)(struct sock_xinfo *, struct sock *); | |
52 | char * (*get_state)(struct sock_xinfo *, struct sock *); | |
45d61bff | 53 | bool (*get_listening)(struct sock_xinfo *, struct sock *); |
7b50bd25 MY |
54 | /* Method for class specific columns. |
55 | * Return true when the method fills the column. */ | |
56 | bool (*fill_column)(struct proc *, | |
57 | struct sock_xinfo *, | |
58 | struct sock *, | |
59 | struct libscols_line *, | |
60 | int, | |
61 | size_t, | |
62 | char **str); | |
63 | ||
0ee16e43 MY |
64 | void (*free)(struct sock_xinfo *); |
65 | }; | |
66 | ||
67 | void initialize_sock_xinfos(void); | |
68 | void finalize_sock_xinfos(void); | |
69 | ||
70 | struct sock_xinfo *get_sock_xinfo(ino_t netns_inode); | |
71 | ||
72 | #endif /* UTIL_LINUX_LSFD_SOCK_H */ |