Adding upstream version 2.39.3.upstream/2.39.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 126 insertions, 0 deletions

diff --git a/include/sysfs.h b/include/sysfs.h
new file mode 100644
index 0000000..8d77f75
--- /dev/null
+++ b/include/sysfs.h
@@ -0,0 +1,126 @@
+/*
+ * No copyright is claimed.  This code is in the public domain; do with
+ * it what you wish.
+ *
+ * Copyright (C) 2011 Karel Zak <kzak@redhat.com>
+ */
+#ifndef UTIL_LINUX_SYSFS_H
+#define UTIL_LINUX_SYSFS_H
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <inttypes.h>
+#include <dirent.h>
+
+#include "path.h"
+
+/**
+ * sysfs_devname_sys_to_dev:
+ * @name: devname to be converted in place
+ *
+ * Linux kernel linux/drivers/base/core.c: device_get_devnode()
+ * defines a replacement of '!' in the /sys device name by '/' in the
+ * /dev device name. This helper replaces all occurrences of '!' in
+ * @name by '/' to convert from /sys to /dev.
+ */
+static inline void sysfs_devname_sys_to_dev(char *name)
+{
+	char *c;
+
+	if (name)
+		while ((c = strchr(name, '!')))
+			c[0] = '/';
+}
+
+/**
+ * sysfs_devname_dev_to_sys:
+ * @name: devname to be converted in place
+ *
+ * See sysfs_devname_sys_to_dev().
+ */
+static inline void sysfs_devname_dev_to_sys(char *name)
+{
+	char *c;
+
+	if (name)
+		while ((c = strchr(name, '/')))
+			c[0] = '!';
+}
+
+struct sysfs_blkdev {
+	dev_t	devno;
+	struct path_cxt *parent;
+
+	unsigned int	scsi_host,
+			scsi_channel,
+			scsi_target,
+			scsi_lun;
+
+	unsigned int	has_hctl   : 1,
+			hctl_error : 1 ;
+};
+
+void ul_sysfs_init_debug(void);
+
+struct path_cxt *ul_new_sysfs_path(dev_t devno, struct path_cxt *parent, const char *prefix);
+int sysfs_blkdev_init_path(struct path_cxt *pc, dev_t devno, struct path_cxt *parent);
+
+int sysfs_blkdev_set_parent(struct path_cxt *pc, struct path_cxt *parent);
+struct path_cxt *sysfs_blkdev_get_parent(struct path_cxt *pc);
+
+char *sysfs_blkdev_get_name(struct path_cxt *pc, char *buf, size_t bufsiz);
+int sysfs_blkdev_is_partition_dirent(DIR *dir, struct dirent *d, const char *parent_name);
+int sysfs_blkdev_count_partitions(struct path_cxt *pc, const char *devname);
+dev_t sysfs_blkdev_partno_to_devno(struct path_cxt *pc, int partno);
+char *sysfs_blkdev_get_slave(struct path_cxt *pc);
+char *sysfs_blkdev_get_path(struct path_cxt *pc, char *buf, size_t bufsiz);
+dev_t sysfs_blkdev_get_devno(struct path_cxt *pc);
+
+char *sysfs_blkdev_get_devchain(struct path_cxt *pc, char *buf, size_t bufsz);
+int sysfs_blkdev_next_subsystem(struct path_cxt *pc __attribute__((unused)), char *devchain, char **subsys);
+
+int sysfs_blkdev_is_hotpluggable(struct path_cxt *pc);
+int sysfs_blkdev_is_removable(struct path_cxt *pc);
+int sysfs_blkdev_get_wholedisk( struct path_cxt *pc,
+                                char *diskname,
+                                size_t len,
+                                dev_t *diskdevno);
+
+int sysfs_devno_to_wholedisk(dev_t dev, char *diskname,
+                             size_t len, dev_t *diskdevno);
+int sysfs_devno_is_dm_private(dev_t devno, char **uuid);
+int sysfs_devno_is_wholedisk(dev_t devno);
+
+dev_t sysfs_devname_to_devno(const char *name);
+dev_t __sysfs_devname_to_devno(const char *prefix, const char *name, const char *parent);
+int sysfs_devname_is_hidden(const char *prefix, const char *name);
+
+char *sysfs_devno_to_devpath(dev_t devno, char *buf, size_t bufsiz);
+char *sysfs_devno_to_devname(dev_t devno, char *buf, size_t bufsiz);
+int sysfs_devno_count_partitions(dev_t devno);
+
+int sysfs_blkdev_scsi_get_hctl(struct path_cxt *pc, int *h, int *c, int *t, int *l);
+char *sysfs_blkdev_scsi_host_strdup_attribute(struct path_cxt *pc,
+                        const char *type, const char *attr);
+int sysfs_blkdev_scsi_host_is(struct path_cxt *pc, const char *type);
+int sysfs_blkdev_scsi_has_attribute(struct path_cxt *pc, const char *attr);
+int sysfs_blkdev_scsi_path_contains(struct path_cxt *pc, const char *pattern);
+
+char *sysfs_chrdev_devno_to_devname(dev_t devno, char *buf, size_t bufsiz);
+
+enum sysfs_byteorder {
+	SYSFS_BYTEORDER_LITTLE,
+	SYSFS_BYTEORDER_BIG,
+};
+
+extern enum sysfs_byteorder sysfs_get_byteorder(struct path_cxt *pc);
+extern int sysfs_get_address_bits(struct path_cxt *pc);
+
+#endif /* UTIL_LINUX_SYSFS_H */