summaryrefslogtreecommitdiffstats
path: root/src/shared/vpick.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-12 03:50:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-12 03:50:40 +0000
commitfc53809803cd2bc2434e312b19a18fa36776da12 (patch)
treeb4b43bd6538f51965ce32856e9c053d0f90919c8 /src/shared/vpick.h
parentAdding upstream version 255.5. (diff)
downloadsystemd-fc53809803cd2bc2434e312b19a18fa36776da12.tar.xz
systemd-fc53809803cd2bc2434e312b19a18fa36776da12.zip
Adding upstream version 256.upstream/256
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shared/vpick.h')
-rw-r--r--src/shared/vpick.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/src/shared/vpick.h b/src/shared/vpick.h
new file mode 100644
index 0000000..38251c8
--- /dev/null
+++ b/src/shared/vpick.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <sys/types.h>
+
+#include "architecture.h"
+
+typedef enum PickFlags {
+ PICK_ARCHITECTURE = 1 << 0, /* Look for an architecture suffix */
+ PICK_TRIES = 1 << 1, /* Look for tries left/tries done counters */
+ PICK_RESOLVE = 1 << 2, /* Return the fully resolved (chased) path, rather than the path to the entry */
+} PickFlags;
+
+typedef struct PickFilter {
+ uint32_t type_mask; /* A mask of 1U << DT_REG, 1U << DT_DIR, … */
+ const char *basename; /* Can be overridden by search pattern */
+ const char *version;
+ Architecture architecture;
+ char * const *suffix; /* Can be overridden by search pattern */
+} PickFilter;
+
+typedef struct PickResult {
+ char *path;
+ int fd; /* O_PATH */
+ struct stat st;
+ char *version;
+ Architecture architecture;
+ unsigned tries_left;
+ unsigned tries_done;
+} PickResult;
+
+#define PICK_RESULT_NULL \
+ (const PickResult) { \
+ .fd = -EBADF, \
+ .st.st_mode = MODE_INVALID, \
+ .architecture = _ARCHITECTURE_INVALID, \
+ .tries_left = UINT_MAX, \
+ .tries_done = UINT_MAX, \
+ }
+
+#define TAKE_PICK_RESULT(pick) TAKE_GENERIC(pick, PickResult, PICK_RESULT_NULL)
+
+void pick_result_done(PickResult *p);
+
+int path_pick(
+ const char *toplevel_path,
+ int toplevel_fd,
+ const char *path,
+ const PickFilter *filter,
+ PickFlags flags,
+ PickResult *ret);
+
+int path_pick_update_warn(
+ char **path,
+ const PickFilter *filter,
+ PickFlags flags,
+ PickResult *ret);
+
+extern const PickFilter pick_filter_image_raw;
+extern const PickFilter pick_filter_image_dir;
+extern const PickFilter pick_filter_image_any;