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-rw-r--r--src/basic/mount-util.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/src/basic/mount-util.c b/src/basic/mount-util.c
index b9affb4e70..0ef00676ef 100644
--- a/src/basic/mount-util.c
+++ b/src/basic/mount-util.c
@@ -581,3 +581,108 @@ const char* mode_to_inaccessible_node(mode_t mode) {
}
return NULL;
}
+
+#define FLAG(name) (flags & name ? STRINGIFY(name) "|" : "")
+static char* mount_flags_to_string(long unsigned flags) {
+ char *x;
+ _cleanup_free_ char *y = NULL;
+ long unsigned overflow;
+
+ overflow = flags & ~(MS_RDONLY |
+ MS_NOSUID |
+ MS_NODEV |
+ MS_NOEXEC |
+ MS_SYNCHRONOUS |
+ MS_REMOUNT |
+ MS_MANDLOCK |
+ MS_DIRSYNC |
+ MS_NOATIME |
+ MS_NODIRATIME |
+ MS_BIND |
+ MS_MOVE |
+ MS_REC |
+ MS_SILENT |
+ MS_POSIXACL |
+ MS_UNBINDABLE |
+ MS_PRIVATE |
+ MS_SLAVE |
+ MS_SHARED |
+ MS_RELATIME |
+ MS_KERNMOUNT |
+ MS_I_VERSION |
+ MS_STRICTATIME |
+ MS_LAZYTIME);
+
+ if (flags == 0 || overflow != 0)
+ if (asprintf(&y, "%lx", overflow) < 0)
+ return NULL;
+
+ x = strjoin(FLAG(MS_RDONLY),
+ FLAG(MS_NOSUID),
+ FLAG(MS_NODEV),
+ FLAG(MS_NOEXEC),
+ FLAG(MS_SYNCHRONOUS),
+ FLAG(MS_REMOUNT),
+ FLAG(MS_MANDLOCK),
+ FLAG(MS_DIRSYNC),
+ FLAG(MS_NOATIME),
+ FLAG(MS_NODIRATIME),
+ FLAG(MS_BIND),
+ FLAG(MS_MOVE),
+ FLAG(MS_REC),
+ FLAG(MS_SILENT),
+ FLAG(MS_POSIXACL),
+ FLAG(MS_UNBINDABLE),
+ FLAG(MS_PRIVATE),
+ FLAG(MS_SLAVE),
+ FLAG(MS_SHARED),
+ FLAG(MS_RELATIME),
+ FLAG(MS_KERNMOUNT),
+ FLAG(MS_I_VERSION),
+ FLAG(MS_STRICTATIME),
+ FLAG(MS_LAZYTIME),
+ y, NULL);
+ if (!x)
+ return NULL;
+ if (!y)
+ x[strlen(x) - 1] = '\0'; /* truncate the last | */
+ return x;
+}
+
+int mount_verbose(
+ int error_log_level,
+ const char *what,
+ const char *where,
+ const char *type,
+ unsigned long flags,
+ const char *options) {
+
+ _cleanup_free_ char *fl = NULL;
+
+ fl = mount_flags_to_string(flags);
+
+ if ((flags & MS_REMOUNT) && !what && !type)
+ log_debug("Remounting %s (%s \"%s\")...",
+ where, strnull(fl), strempty(options));
+ else if (!what && !type)
+ log_debug("Mounting %s (%s \"%s\")...",
+ where, strnull(fl), strempty(options));
+ else if ((flags & MS_BIND) && !type)
+ log_debug("Bind-mounting %s on %s (%s \"%s\")...",
+ what, where, strnull(fl), strempty(options));
+ else
+ log_debug("Mounting %s on %s (%s \"%s\")...",
+ strna(type), where, strnull(fl), strempty(options));
+ if (mount(what, where, type, flags, options) < 0)
+ return log_full_errno(error_log_level, errno,
+ "Failed to mount %s on %s (%s \"%s\"): %m",
+ strna(type), where, strnull(fl), strempty(options));
+ return 0;
+}
+
+int umount_verbose(const char *what) {
+ log_debug("Umounting %s...", what);
+ if (umount(what) < 0)
+ return log_error_errno(errno, "Failed to unmount %s: %m", what);
+ return 0;
+}