diff options
Diffstat (limited to 'src/basic')
| -rw-r--r-- | src/basic/mount-util.c | 105 | ||||
| -rw-r--r-- | src/basic/mount-util.h | 9 |
2 files changed, 114 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; +} diff --git a/src/basic/mount-util.h b/src/basic/mount-util.h index 74730de663..4f305df19f 100644 --- a/src/basic/mount-util.h +++ b/src/basic/mount-util.h @@ -52,3 +52,12 @@ union file_handle_union { const char* mode_to_inaccessible_node(mode_t mode); #define FILE_HANDLE_INIT { .handle.handle_bytes = MAX_HANDLE_SZ } + +int mount_verbose( + int error_log_level, + const char *what, + const char *where, + const char *type, + unsigned long flags, + const char *options); +int umount_verbose(const char *where); |