1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
***/
//#include <grp.h>
//#include <gshadow.h>
//#include <pwd.h>
//#include <shadow.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
bool uid_is_valid(uid_t uid);
static inline bool gid_is_valid(gid_t gid) {
return uid_is_valid((uid_t) gid);
}
int parse_uid(const char *s, uid_t* ret_uid);
static inline int parse_gid(const char *s, gid_t *ret_gid) {
return parse_uid(s, (uid_t*) ret_gid);
}
char* getlogname_malloc(void);
#if 0 /// UNNEEDED by elogind
char* getusername_malloc(void);
#endif // 0
int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell);
#if 0 /// UNNEEDED by elogind
int get_user_creds_clean(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell);
int get_group_creds(const char **groupname, gid_t *gid);
#endif // 0
char* uid_to_name(uid_t uid);
char* gid_to_name(gid_t gid);
#if 0 /// UNNEEDED by elogind
int in_gid(gid_t gid);
int in_group(const char *name);
int get_home_dir(char **ret);
int get_shell(char **_ret);
#endif // 0
int reset_uid_gid(void);
#if 0 /// UNNEEDED by elogind
int take_etc_passwd_lock(const char *root);
#endif // 0
#define UID_INVALID ((uid_t) -1)
#define GID_INVALID ((gid_t) -1)
#define UID_NOBODY ((uid_t) 65534U)
#define GID_NOBODY ((gid_t) 65534U)
#define ETC_PASSWD_LOCK_PATH "/etc/.pwd.lock"
#if 0 /// UNNEEDED by elogind
static inline bool uid_is_dynamic(uid_t uid) {
return DYNAMIC_UID_MIN <= uid && uid <= DYNAMIC_UID_MAX;
}
static inline bool gid_is_dynamic(gid_t gid) {
return uid_is_dynamic((uid_t) gid);
}
#endif // 0
static inline bool uid_is_system(uid_t uid) {
return uid <= SYSTEM_UID_MAX;
}
static inline bool gid_is_system(gid_t gid) {
return gid <= SYSTEM_GID_MAX;
}
/* The following macros add 1 when converting things, since UID 0 is a valid UID, while the pointer
* NULL is special */
#define PTR_TO_UID(p) ((uid_t) (((uintptr_t) (p))-1))
#define UID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1))
#define PTR_TO_GID(p) ((gid_t) (((uintptr_t) (p))-1))
#define GID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1))
static inline bool userns_supported(void) {
return access("/proc/self/uid_map", F_OK) >= 0;
}
bool valid_user_group_name(const char *u);
bool valid_user_group_name_or_id(const char *u);
bool valid_gecos(const char *d);
bool valid_home(const char *p);
static inline bool valid_shell(const char *p) {
/* We have the same requirements, so just piggy-back on the home check.
*
* Let's ignore /etc/shells because this is only applicable to real and
* not system users. It is also incompatible with the idea of empty /etc.
*/
return valid_home(p);
}
int maybe_setgroups(size_t size, const gid_t *list);
bool synthesize_nobody(void);
int fgetpwent_sane(FILE *stream, struct passwd **pw);
int fgetspent_sane(FILE *stream, struct spwd **sp);
int fgetgrent_sane(FILE *stream, struct group **gr);
int putpwent_sane(const struct passwd *pw, FILE *stream);
int putspent_sane(const struct spwd *sp, FILE *stream);
int putgrent_sane(const struct group *gr, FILE *stream);
#ifdef ENABLE_GSHADOW
int fgetsgent_sane(FILE *stream, struct sgrp **sg);
int putsgent_sane(const struct sgrp *sg, FILE *stream);
#endif
|
