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/stddef.h>
13 #include <linux/perf_event.h> 14 #include <linux/perf_event.h>
14 #include <linux/refcount.h> 15 #include <linux/refcount.h>
15 #include <linux/types.h> 16 #include <linux/types.h>
16 #include <internal/rc_check.h> <<
17 17
18 #ifndef HAVE_SETNS_SUPPORT !! 18 struct namespaces_event;
19 int setns(int fd, int nstype); <<
20 #endif <<
21 <<
22 struct perf_record_namespaces; <<
23 19
24 struct namespaces { 20 struct namespaces {
25 struct list_head list; 21 struct list_head list;
26 u64 end_time; 22 u64 end_time;
27 struct perf_ns_link_info link_info[]; 23 struct perf_ns_link_info link_info[];
28 }; 24 };
29 25
30 struct namespaces *namespaces__new(struct perf !! 26 struct namespaces *namespaces__new(struct namespaces_event *event);
31 void namespaces__free(struct namespaces *names 27 void namespaces__free(struct namespaces *namespaces);
32 28
33 DECLARE_RC_STRUCT(nsinfo) { !! 29 struct nsinfo {
34 pid_t pid; 30 pid_t pid;
35 pid_t tgid; 31 pid_t tgid;
36 pid_t nstgid; 32 pid_t nstgid;
37 bool need_setns; 33 bool need_setns;
38 bool in_pidns; <<
39 char *mntns_path; 34 char *mntns_path;
40 refcount_t refcnt; 35 refcount_t refcnt;
41 }; 36 };
42 37
43 struct nscookie { 38 struct nscookie {
44 int oldns; 39 int oldns;
45 int newns; 40 int newns;
46 char *oldcwd; <<
47 }; 41 };
48 42
49 int nsinfo__init(struct nsinfo *nsi); 43 int nsinfo__init(struct nsinfo *nsi);
50 struct nsinfo *nsinfo__new(pid_t pid); 44 struct nsinfo *nsinfo__new(pid_t pid);
51 struct nsinfo *nsinfo__copy(const struct nsinf !! 45 struct nsinfo *nsinfo__copy(struct nsinfo *nsi);
>> 46 void nsinfo__delete(struct nsinfo *nsi);
52 47
53 struct nsinfo *nsinfo__get(struct nsinfo *nsi) 48 struct nsinfo *nsinfo__get(struct nsinfo *nsi);
54 void nsinfo__put(struct nsinfo *nsi); 49 void nsinfo__put(struct nsinfo *nsi);
55 50
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, 51 void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc);
64 void nsinfo__mountns_exit(struct nscookie *nc) 52 void nsinfo__mountns_exit(struct nscookie *nc);
65 53
66 char *nsinfo__realpath(const char *path, struc 54 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 55
71 static inline void __nsinfo__zput(struct nsinf 56 static inline void __nsinfo__zput(struct nsinfo **nsip)
72 { 57 {
73 if (nsip) { 58 if (nsip) {
74 nsinfo__put(*nsip); 59 nsinfo__put(*nsip);
75 *nsip = NULL; 60 *nsip = NULL;
76 } 61 }
77 } 62 }
78 63
79 #define nsinfo__zput(nsi) __nsinfo__zput(&nsi) 64 #define nsinfo__zput(nsi) __nsinfo__zput(&nsi)
80 <<
81 const char *perf_ns__name(unsigned int id); <<
82 65
83 #endif /* __PERF_NAMESPACES_H */ 66 #endif /* __PERF_NAMESPACES_H */
84 67
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