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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ | |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <unistd.h> | |
23 | #include <stdlib.h> | |
24 | ||
25 | #include "efivars.h" | |
26 | #include "path-util.h" | |
27 | #include "util.h" | |
28 | ||
29 | static const char *arg_dest = NULL; | |
30 | ||
31 | int main(int argc, char *argv[]) { | |
32 | int r = EXIT_SUCCESS; | |
33 | sd_id128_t id; | |
34 | _cleanup_free_ char *name = NULL; | |
35 | _cleanup_fclose_ FILE *f = NULL; | |
36 | ||
37 | if (argc > 1 && argc != 4) { | |
38 | log_error("This program takes three or no arguments."); | |
39 | return EXIT_FAILURE; | |
40 | } | |
41 | ||
42 | if (argc > 1) | |
43 | arg_dest = argv[3]; | |
44 | ||
45 | log_set_target(LOG_TARGET_SAFE); | |
46 | log_parse_environment(); | |
47 | log_open(); | |
48 | ||
49 | umask(0022); | |
50 | ||
51 | if (!is_efiboot()) | |
52 | return EXIT_SUCCESS; | |
53 | ||
54 | if (dir_is_empty("/boot") <= 0) | |
55 | return EXIT_SUCCESS; | |
56 | ||
57 | r = efi_get_loader_device_part_uuid(&id); | |
58 | if (r == -ENOENT) | |
59 | return EXIT_SUCCESS; | |
60 | if (r < 0) { | |
61 | log_error("Failed to read ESP partition UUID: %s", strerror(-r)); | |
62 | return EXIT_FAILURE; | |
63 | } | |
64 | ||
65 | name = strjoin(arg_dest, "/boot.mount", NULL); | |
66 | if (!name) { | |
67 | log_oom(); | |
68 | return EXIT_FAILURE; | |
69 | } | |
70 | ||
71 | f = fopen(name, "wxe"); | |
72 | if (!f) { | |
73 | log_error("Failed to create mount unit file %s: %m", name); | |
74 | return EXIT_FAILURE; | |
75 | } | |
76 | ||
77 | fprintf(f, | |
78 | "# Automatially generated by systemd-efi-boot-generator\n\n" | |
79 | "[Mount]\n" | |
80 | "Where=/boot\n" | |
81 | "What=/dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n" | |
82 | "Options=umask=0077\n", | |
83 | SD_ID128_FORMAT_VAL(id)); | |
84 | ||
85 | free(name); | |
86 | name = strjoin(arg_dest, "/boot.automount", NULL); | |
87 | if (!name) { | |
88 | log_oom(); | |
89 | return EXIT_FAILURE; | |
90 | } | |
91 | ||
92 | fclose(f); | |
93 | f = fopen(name, "wxe"); | |
94 | if (!f) { | |
95 | log_error("Failed to create automount unit file %s: %m", name); | |
96 | return EXIT_FAILURE; | |
97 | } | |
98 | ||
99 | fprintf(f, | |
100 | "# Automatially generated by systemd-efi-boot-generator\n\n" | |
101 | "[Automount]\n" | |
102 | "Where=/boot\n"); | |
103 | ||
104 | free(name); | |
105 | name = strjoin(arg_dest, "/local-fs.target.wants/boot.automount", NULL); | |
106 | if (!name) { | |
107 | log_oom(); | |
108 | return EXIT_FAILURE; | |
109 | } | |
110 | ||
111 | if (symlink("../boot.automount", name) < 0) { | |
112 | log_error("Failed to create symlink: %m"); | |
113 | return EXIT_FAILURE; | |
114 | } | |
115 | ||
116 | return 0; | |
117 | } |