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
125
126
127
128
129
130
131
132
133
134
135
|
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "brillo/minijail/minijail.h"
#include <sys/types.h>
#include <sys/wait.h>
using std::vector;
namespace brillo {
static base::LazyInstance<Minijail> g_minijail = LAZY_INSTANCE_INITIALIZER;
Minijail::Minijail() {}
Minijail::~Minijail() {}
// static
Minijail* Minijail::GetInstance() {
return g_minijail.Pointer();
}
struct minijail* Minijail::New() {
return minijail_new();
}
void Minijail::Destroy(struct minijail* jail) {
minijail_destroy(jail);
}
void Minijail::DropRoot(struct minijail* jail, uid_t uid, gid_t gid) {
minijail_change_uid(jail, uid);
minijail_change_gid(jail, gid);
}
bool Minijail::DropRoot(struct minijail* jail,
const char* user,
const char* group) {
// |user| and |group| are copied so the only reason either of these
// calls can fail is ENOMEM.
return !minijail_change_user(jail, user) &&
!minijail_change_group(jail, group);
}
void Minijail::EnterNewPidNamespace(struct minijail* jail) {
minijail_namespace_pids(jail);
}
void Minijail::MountTmp(struct minijail* jail) {
minijail_mount_tmp(jail);
}
void Minijail::UseSeccompFilter(struct minijail* jail, const char* path) {
minijail_no_new_privs(jail);
minijail_use_seccomp_filter(jail);
minijail_parse_seccomp_filters(jail, path);
}
void Minijail::UseCapabilities(struct minijail* jail, uint64_t capmask) {
minijail_use_caps(jail, capmask);
}
void Minijail::Enter(struct minijail* jail) {
minijail_enter(jail);
}
bool Minijail::Run(struct minijail* jail, vector<char*> args, pid_t* pid) {
return minijail_run_pid(jail, args[0], args.data(), pid) == 0;
}
bool Minijail::RunSync(struct minijail* jail, vector<char*> args, int* status) {
pid_t pid;
if (Run(jail, args, &pid) && waitpid(pid, status, 0) == pid) {
return true;
}
return false;
}
bool Minijail::RunPipe(struct minijail* jail,
vector<char*> args,
pid_t* pid,
int* stdin) {
return minijail_run_pid_pipe(jail, args[0], args.data(), pid, stdin) == 0;
}
bool Minijail::RunPipes(struct minijail* jail,
vector<char*> args,
pid_t* pid,
int* stdin,
int* stdout,
int* stderr) {
return minijail_run_pid_pipes(
jail, args[0], args.data(), pid, stdin, stdout, stderr) == 0;
}
bool Minijail::RunAndDestroy(struct minijail* jail,
vector<char*> args,
pid_t* pid) {
bool res = Run(jail, args, pid);
Destroy(jail);
return res;
}
bool Minijail::RunSyncAndDestroy(struct minijail* jail,
vector<char*> args,
int* status) {
bool res = RunSync(jail, args, status);
Destroy(jail);
return res;
}
bool Minijail::RunPipeAndDestroy(struct minijail* jail,
vector<char*> args,
pid_t* pid,
int* stdin) {
bool res = RunPipe(jail, args, pid, stdin);
Destroy(jail);
return res;
}
bool Minijail::RunPipesAndDestroy(struct minijail* jail,
vector<char*> args,
pid_t* pid,
int* stdin,
int* stdout,
int* stderr) {
bool res = RunPipes(jail, args, pid, stdin, stdout, stderr);
Destroy(jail);
return res;
}
} // namespace brillo
|
