1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
>> 2 * This program is free software; you can redistribute it and/or modify
>> 3 * it under the terms of the GNU General Public License, version 2, as
>> 4 * published by the Free Software Foundation.
3 * 5 *
4 * Copyright (C) 2017 Hari Bathini, IBM Corpor 6 * Copyright (C) 2017 Hari Bathini, IBM Corporation
5 */ 7 */
6 8
7 #ifndef __PERF_NAMESPACES_H 9 #ifndef __PERF_NAMESPACES_H
8 #define __PERF_NAMESPACES_H 10 #define __PERF_NAMESPACES_H
9 11
10 #include <sys/types.h> 12 #include <sys/types.h>
11 #include <sys/stat.h> <<
12 #include <linux/stddef.h> <<
13 #include <linux/perf_event.h> 13 #include <linux/perf_event.h>
14 #include <linux/refcount.h> 14 #include <linux/refcount.h>
15 #include <linux/types.h> 15 #include <linux/types.h>
16 #include <internal/rc_check.h> <<
17 16
18 #ifndef HAVE_SETNS_SUPPORT !! 17 struct namespaces_event;
19 int setns(int fd, int nstype); <<
20 #endif <<
21 <<
22 struct perf_record_namespaces; <<
23 18
24 struct namespaces { 19 struct namespaces {
25 struct list_head list; 20 struct list_head list;
26 u64 end_time; 21 u64 end_time;
27 struct perf_ns_link_info link_info[]; 22 struct perf_ns_link_info link_info[];
28 }; 23 };
29 24
30 struct namespaces *namespaces__new(struct perf !! 25 struct namespaces *namespaces__new(struct namespaces_event *event);
31 void namespaces__free(struct namespaces *names 26 void namespaces__free(struct namespaces *namespaces);
32 27
33 DECLARE_RC_STRUCT(nsinfo) { !! 28 struct nsinfo {
34 pid_t pid; 29 pid_t pid;
35 pid_t tgid; 30 pid_t tgid;
36 pid_t nstgid; 31 pid_t nstgid;
37 bool need_setns; 32 bool need_setns;
38 bool in_pidns; <<
39 char *mntns_path; 33 char *mntns_path;
40 refcount_t refcnt; 34 refcount_t refcnt;
41 }; 35 };
42 36
43 struct nscookie { 37 struct nscookie {
44 int oldns; 38 int oldns;
45 int newns; 39 int newns;
46 char *oldcwd; <<
47 }; 40 };
48 41
49 int nsinfo__init(struct nsinfo *nsi); 42 int nsinfo__init(struct nsinfo *nsi);
50 struct nsinfo *nsinfo__new(pid_t pid); 43 struct nsinfo *nsinfo__new(pid_t pid);
51 struct nsinfo *nsinfo__copy(const struct nsinf !! 44 struct nsinfo *nsinfo__copy(struct nsinfo *nsi);
>> 45 void nsinfo__delete(struct nsinfo *nsi);
52 46
53 struct nsinfo *nsinfo__get(struct nsinfo *nsi) 47 struct nsinfo *nsinfo__get(struct nsinfo *nsi);
54 void nsinfo__put(struct nsinfo *nsi); 48 void nsinfo__put(struct nsinfo *nsi);
55 49
56 bool nsinfo__need_setns(const struct nsinfo *n <<
57 void nsinfo__clear_need_setns(struct nsinfo *n <<
58 pid_t nsinfo__tgid(const struct nsinfo *nsi); <<
59 pid_t nsinfo__nstgid(const struct nsinfo *nsi <<
60 pid_t nsinfo__pid(const struct nsinfo *nsi); <<
61 pid_t nsinfo__in_pidns(const struct nsinfo *n <<
62 <<
63 void nsinfo__mountns_enter(struct nsinfo *nsi, 50 void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc);
64 void nsinfo__mountns_exit(struct nscookie *nc) 51 void nsinfo__mountns_exit(struct nscookie *nc);
65 52
66 char *nsinfo__realpath(const char *path, struc 53 char *nsinfo__realpath(const char *path, struct nsinfo *nsi);
67 int nsinfo__stat(const char *filename, struct <<
68 <<
69 bool nsinfo__is_in_root_namespace(void); <<
70 54
71 static inline void __nsinfo__zput(struct nsinf 55 static inline void __nsinfo__zput(struct nsinfo **nsip)
72 { 56 {
73 if (nsip) { 57 if (nsip) {
74 nsinfo__put(*nsip); 58 nsinfo__put(*nsip);
75 *nsip = NULL; 59 *nsip = NULL;
76 } 60 }
77 } 61 }
78 62
79 #define nsinfo__zput(nsi) __nsinfo__zput(&nsi) 63 #define nsinfo__zput(nsi) __nsinfo__zput(&nsi)
80 <<
81 const char *perf_ns__name(unsigned int id); <<
82 64
83 #endif /* __PERF_NAMESPACES_H */ 65 #endif /* __PERF_NAMESPACES_H */
84 66
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