1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 #pragma once
3
4 #include <stdbool.h>
5
6 #include "log.h"
7
8 typedef enum ProcCmdlineFlags {
9 PROC_CMDLINE_STRIP_RD_PREFIX = 1 << 0, /* automatically strip "rd." prefix if it is set (and we are in the initrd, since otherwise we'd not consider it anyway) */
10 PROC_CMDLINE_VALUE_OPTIONAL = 1 << 1, /* the value is optional (for boolean switches that can omit the value) */
11 PROC_CMDLINE_RD_STRICT = 1 << 2, /* ignore this in the initrd */
12 PROC_CMDLINE_IGNORE_EFI_OPTIONS = 1 << 3, /* don't check systemd's private EFI variable */
13 } ProcCmdlineFlags;
14
15 typedef int (*proc_cmdline_parse_t)(const char *key, const char *value, void *data);
16
17 int proc_cmdline(char **ret);
18
19 int proc_cmdline_parse_given(const char *line, proc_cmdline_parse_t parse_item, void *data, ProcCmdlineFlags flags);
20 int proc_cmdline_parse(const proc_cmdline_parse_t parse, void *userdata, ProcCmdlineFlags flags);
21
22 int proc_cmdline_get_key(const char *parameter, ProcCmdlineFlags flags, char **value);
23 int proc_cmdline_get_bool(const char *key, bool *ret);
24
25 int proc_cmdline_get_key_many_internal(ProcCmdlineFlags flags, ...);
26 #define proc_cmdline_get_key_many(flags, ...) proc_cmdline_get_key_many_internal(flags, __VA_ARGS__, NULL)
27
28 char *proc_cmdline_key_startswith(const char *s, const char *prefix);
29 bool proc_cmdline_key_streq(const char *x, const char *y);
30
31 /* A little helper call, to be used in proc_cmdline_parse_t callbacks */
proc_cmdline_value_missing(const char * key,const char * value)32 static inline bool proc_cmdline_value_missing(const char *key, const char *value) {
33 if (!value) {
34 log_warning("Missing argument for %s= kernel command line switch, ignoring.", key);
35 return true;
36 }
37
38 return false;
39 }
40