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-rw-r--r--src/basic/proc-cmdline.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/basic/proc-cmdline.h b/src/basic/proc-cmdline.h
new file mode 100644
index 0000000..45f3a27
--- /dev/null
+++ b/src/basic/proc-cmdline.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <stdbool.h>
+
+#include "log.h"
+
+typedef enum ProcCmdlineFlags {
+ 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) */
+ PROC_CMDLINE_VALUE_OPTIONAL = 1 << 1, /* the value is optional (for boolean switches that can omit the value) */
+ PROC_CMDLINE_RD_STRICT = 1 << 2, /* ignore this in the initrd */
+ PROC_CMDLINE_IGNORE_EFI_OPTIONS = 1 << 3, /* don't check systemd's private EFI variable */
+} ProcCmdlineFlags;
+
+typedef int (*proc_cmdline_parse_t)(const char *key, const char *value, void *data);
+
+int proc_cmdline(char **ret);
+
+int proc_cmdline_parse_given(const char *line, proc_cmdline_parse_t parse_item, void *data, ProcCmdlineFlags flags);
+int proc_cmdline_parse(const proc_cmdline_parse_t parse, void *userdata, ProcCmdlineFlags flags);
+
+int proc_cmdline_get_key(const char *parameter, ProcCmdlineFlags flags, char **value);
+int proc_cmdline_get_bool(const char *key, bool *ret);
+
+int proc_cmdline_get_key_many_internal(ProcCmdlineFlags flags, ...);
+#define proc_cmdline_get_key_many(flags, ...) proc_cmdline_get_key_many_internal(flags, __VA_ARGS__, NULL)
+
+char *proc_cmdline_key_startswith(const char *s, const char *prefix);
+bool proc_cmdline_key_streq(const char *x, const char *y);
+
+/* A little helper call, to be used in proc_cmdline_parse_t callbacks */
+static inline bool proc_cmdline_value_missing(const char *key, const char *value) {
+ if (!value) {
+ log_warning("Missing argument for %s= kernel command line switch, ignoring.", key);
+ return true;
+ }
+
+ return false;
+}