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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <unistd.h>
#include <stdlib.h>
#include "efivars.h"
#include "path-util.h"
#include "util.h"
#include "mkdir.h"
#include "virt.h"
#include "generator.h"
#include "special.h"
static const char *arg_dest = "/tmp";
int main(int argc, char *argv[]) {
_cleanup_free_ char *what = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r = EXIT_SUCCESS;
sd_id128_t id;
char *name;
if (argc > 1 && argc != 4) {
log_error("This program takes three or no arguments.");
return EXIT_FAILURE;
}
if (argc > 1)
arg_dest = argv[3];
log_set_target(LOG_TARGET_SAFE);
log_parse_environment();
log_open();
umask(0022);
if (in_initrd()) {
log_debug("In initrd, exiting.");
return EXIT_SUCCESS;
}
if (detect_container(NULL) > 0) {
log_debug("In a container, exiting.");
return EXIT_SUCCESS;
}
if (!is_efi_boot()) {
log_debug("Not an EFI boot, exiting.");
return EXIT_SUCCESS;
}
r = path_is_mount_point("/boot", true);
if (r > 0) {
log_debug("/boot is already a mount point, exiting.");
return EXIT_SUCCESS;
}
if (r == -ENOENT)
log_debug("/boot does not exist, continuing.");
else if (dir_is_empty("/boot") <= 0) {
log_debug("/boot already populated, exiting.");
return EXIT_SUCCESS;
}
r = efi_loader_get_device_part_uuid(&id);
if (r == -ENOENT) {
log_debug("EFI loader partition unknown, exiting.");
return EXIT_SUCCESS;
} else if (r < 0) {
log_error_errno(r, "Failed to read ESP partition UUID: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/boot.mount");
f = fopen(name, "wxe");
if (!f) {
log_error_errno(errno, "Failed to create mount unit file %s: %m", name);
return EXIT_FAILURE;
}
r = asprintf(&what,
"/dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
SD_ID128_FORMAT_VAL(id));
if (r < 0) {
log_oom();
return EXIT_FAILURE;
}
fprintf(f,
"# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition\n"
"Documentation=man:systemd-efi-boot-generator(8)\n");
r = generator_write_fsck_deps(f, arg_dest, what, "/boot", "vfat");
if (r < 0)
return EXIT_FAILURE;
fprintf(f,
"\n"
"[Mount]\n"
"What=%s\n"
"Where=/boot\n"
"Type=vfat\n"
"Options=umask=0077,noauto\n",
what);
fflush(f);
if (ferror(f)) {
log_error_errno(errno, "Failed to write mount unit file: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/boot.automount");
fclose(f);
f = fopen(name, "wxe");
if (!f) {
log_error_errno(errno, "Failed to create automount unit file %s: %m", name);
return EXIT_FAILURE;
}
fputs("# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition Automount\n\n"
"[Automount]\n"
"Where=/boot\n"
"TimeoutIdleSec=120\n", f);
fflush(f);
if (ferror(f)) {
log_error_errno(errno, "Failed to write automount unit file: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/boot.automount");
mkdir_parents(name, 0755);
if (symlink("../boot.automount", name) < 0) {
log_error_errno(errno, "Failed to create symlink %s: %m", name);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
