fstab-generator: clean up mount point flags handling

Let's rename MountpointsFlags → MountPointFlags. In most of our codebase
we name things mount_point/MountPoint rather than mountpoint/Mountpoint,
do so here too.

Also, prefix the enum values with "MOUNT_". The fact the enum values
weren#t prefixed was pretty unique in our codebase, and pretty
surprising. Let's fix that.

This is just refactoring, no actual change in behaviour

1 files changed, 48 insertions, 39 deletions

diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index 110a9bd1ba..c0ded48d97 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -29,14 +29,14 @@
 #include "virt.h"
 #include "volatile-util.h"
 
-typedef enum MountpointFlags {
-        NOAUTO    = 1 << 0,
-        NOFAIL    = 1 << 1,
-        AUTOMOUNT = 1 << 2,
-        MAKEFS    = 1 << 3,
-        GROWFS    = 1 << 4,
-        RWONLY    = 1 << 5,
-} MountpointFlags;
+typedef enum MountPointFlags {
+        MOUNT_NOAUTO    = 1 << 0,
+        MOUNT_NOFAIL    = 1 << 1,
+        MOUNT_AUTOMOUNT = 1 << 2,
+        MOUNT_MAKEFS    = 1 << 3,
+        MOUNT_GROWFS    = 1 << 4,
+        MOUNT_RW_ONLY   = 1 << 5,
+} MountPointFlags;
 
 static const char *arg_dest = NULL;
 static const char *arg_dest_late = NULL;
@@ -91,7 +91,7 @@ static int write_what(FILE *f, const char *what) {
 static int add_swap(
                 const char *what,
                 struct mntent *me,
-                MountpointFlags flags) {
+                MountPointFlags flags) {
 
         _cleanup_free_ char *name = NULL;
         _cleanup_fclose_ FILE *f = NULL;
@@ -154,19 +154,19 @@ static int add_swap(
         if (r < 0)
                 return r;
 
-        if (flags & MAKEFS) {
+        if (flags & MOUNT_MAKEFS) {
                 r = generator_hook_up_mkswap(arg_dest, what);
                 if (r < 0)
                         return r;
         }
 
-        if (flags & GROWFS)
+        if (flags & MOUNT_GROWFS)
                 /* TODO: swap devices must be wiped and recreated */
                 log_warning("%s: growing swap devices is currently unsupported.", what);
 
-        if (!(flags & NOAUTO)) {
+        if (!(flags & MOUNT_NOAUTO)) {
                 r = generator_add_symlink(arg_dest, SPECIAL_SWAP_TARGET,
-                                          (flags & NOFAIL) ? "wants" : "requires", name);
+                                          (flags & MOUNT_NOFAIL) ? "wants" : "requires", name);
                 if (r < 0)
                         return r;
         }
@@ -345,7 +345,7 @@ static int add_mount(
                 const char *fstype,
                 const char *opts,
                 int passno,
-                MountpointFlags flags,
+                MountPointFlags flags,
                 const char *post,
                 const char *source) {
 
@@ -385,20 +385,20 @@ static int add_mount(
                 return r;
 
         if (path_equal(where, "/")) {
-                if (flags & NOAUTO)
-                        log_warning("Ignoring \"noauto\" for root device");
-                if (flags & NOFAIL)
-                        log_warning("Ignoring \"nofail\" for root device");
-                if (flags & AUTOMOUNT)
-                        log_warning("Ignoring automount option for root device");
+                if (flags & MOUNT_NOAUTO)
+                        log_warning("Ignoring \"noauto\" option for root device");
+                if (flags & MOUNT_NOFAIL)
+                        log_warning("Ignoring \"nofail\" option for root device");
+                if (flags & MOUNT_AUTOMOUNT)
+                        log_warning("Ignoring \"automount\" option for root device");
                 if (!strv_isempty(wanted_by))
-                        log_warning("Ignoring \"x-systemd.wanted-by=\" for root device");
+                        log_warning("Ignoring \"x-systemd.wanted-by=\" option for root device");
                 if (!strv_isempty(required_by))
-                        log_warning("Ignoring \"x-systemd.required-by=\" for root device");
+                        log_warning("Ignoring \"x-systemd.required-by=\" option for root device");
 
                 required_by = strv_free(required_by);
                 wanted_by = strv_free(wanted_by);
-                SET_FLAG(flags, NOAUTO | NOFAIL | AUTOMOUNT, false);
+                SET_FLAG(flags, MOUNT_NOAUTO | MOUNT_NOFAIL | MOUNT_AUTOMOUNT, false);
         }
 
         r = unit_name_from_path(where, ".mount", &name);
@@ -415,7 +415,7 @@ static int add_mount(
                 "SourcePath=%s\n",
                 source);
 
-        if (STRPTR_IN_SET(fstype, "nfs", "nfs4") && !(flags & AUTOMOUNT) &&
+        if (STRPTR_IN_SET(fstype, "nfs", "nfs4") && !(flags & MOUNT_AUTOMOUNT) &&
             fstab_test_yes_no_option(opts, "bg\0" "fg\0")) {
                 /* The default retry timeout that mount.nfs uses for 'bg' mounts
                  * is 10000 minutes, where as it uses 2 minutes for 'fg' mounts.
@@ -426,7 +426,7 @@ static int add_mount(
                  * By placing these options first, they can be overridden by
                  * settings in /etc/fstab. */
                 opts = strjoina("x-systemd.mount-timeout=infinity,retry=10000,nofail,", opts, ",fg");
-                SET_FLAG(flags, NOFAIL, true);
+                SET_FLAG(flags, MOUNT_NOFAIL, true);
         }
 
         r = write_extra_dependencies(f, opts);
@@ -435,7 +435,7 @@ static int add_mount(
 
         /* Order the mount unit we generate relative to the post unit, so that DefaultDependencies= on the
          * target unit won't affect us. */
-        if (post && !FLAGS_SET(flags, AUTOMOUNT) && !FLAGS_SET(flags, NOAUTO))
+        if (post && !FLAGS_SET(flags, MOUNT_AUTOMOUNT) && !FLAGS_SET(flags, MOUNT_NOAUTO))
                 fprintf(f, "Before=%s\n", post);
 
         if (passno != 0) {
@@ -490,29 +490,29 @@ static int add_mount(
         if (r < 0)
                 return r;
 
-        if (flags & RWONLY)
+        if (flags & MOUNT_RW_ONLY)
                 fprintf(f, "ReadWriteOnly=yes\n");
 
         r = fflush_and_check(f);
         if (r < 0)
                 return log_error_errno(r, "Failed to write unit file %s: %m", name);
 
-        if (flags & MAKEFS) {
+        if (flags & MOUNT_MAKEFS) {
                 r = generator_hook_up_mkfs(dest, what, where, fstype);
                 if (r < 0)
                         return r;
         }
 
-        if (flags & GROWFS) {
+        if (flags & MOUNT_GROWFS) {
                 r = generator_hook_up_growfs(dest, where, post);
                 if (r < 0)
                         return r;
         }
 
-        if (!FLAGS_SET(flags, AUTOMOUNT)) {
-                if (!FLAGS_SET(flags, NOAUTO) && strv_isempty(wanted_by) && strv_isempty(required_by)) {
+        if (!FLAGS_SET(flags, MOUNT_AUTOMOUNT)) {
+                if (!FLAGS_SET(flags, MOUNT_NOAUTO) && strv_isempty(wanted_by) && strv_isempty(required_by)) {
                         r = generator_add_symlink(dest, post,
-                                                  (flags & NOFAIL) ? "wants" : "requires", name);
+                                                  (flags & MOUNT_NOFAIL) ? "wants" : "requires", name);
                         if (r < 0)
                                 return r;
                 } else {
@@ -562,7 +562,7 @@ static int add_mount(
                         return log_error_errno(r, "Failed to write unit file %s: %m", automount_name);
 
                 r = generator_add_symlink(dest, post,
-                                          (flags & NOFAIL) ? "wants" : "requires", automount_name);
+                                          (flags & MOUNT_NOFAIL) ? "wants" : "requires", automount_name);
                 if (r < 0)
                         return r;
         }
@@ -589,7 +589,8 @@ static int parse_fstab(bool initrd) {
 
         while ((me = getmntent(f))) {
                 _cleanup_free_ char *where = NULL, *what = NULL, *canonical_where = NULL;
-                bool makefs, growfs, noauto, nofail, rwonly;
+                bool makefs, growfs, noauto, nofail;
+                MountPointFlags flags;
                 int k;
 
                 if (initrd && !mount_in_initrd(me))
@@ -629,7 +630,6 @@ static int parse_fstab(bool initrd) {
 
                 makefs = fstab_test_option(me->mnt_opts, "x-systemd.makefs\0");
                 growfs = fstab_test_option(me->mnt_opts, "x-systemd.growfs\0");
-                rwonly = fstab_test_option(me->mnt_opts, "x-systemd.rw-only\0");
                 noauto = fstab_test_yes_no_option(me->mnt_opts, "noauto\0" "auto\0");
                 nofail = fstab_test_yes_no_option(me->mnt_opts, "nofail\0" "fail\0");
 
@@ -638,16 +638,25 @@ static int parse_fstab(bool initrd) {
                           yes_no(makefs), yes_no(growfs),
                           yes_no(noauto), yes_no(nofail));
 
+                flags = makefs * MOUNT_MAKEFS |
+                        growfs * MOUNT_GROWFS |
+                        noauto * MOUNT_NOAUTO |
+                        nofail * MOUNT_NOFAIL;
+
                 if (streq(me->mnt_type, "swap"))
-                        k = add_swap(what, me,
-                                     makefs*MAKEFS | growfs*GROWFS | noauto*NOAUTO | nofail*NOFAIL);
+                        k = add_swap(what, me, flags);
                 else {
-                        bool automount;
+                        bool rw_only, automount;
                         const char *post;
 
+                        rw_only = fstab_test_option(me->mnt_opts, "x-systemd.rw-only\0");
                         automount = fstab_test_option(me->mnt_opts,
                                                       "comment=systemd.automount\0"
                                                       "x-systemd.automount\0");
+
+                        flags |= rw_only * MOUNT_RW_ONLY |
+                                 automount * MOUNT_AUTOMOUNT;
+
                         if (initrd)
                                 post = SPECIAL_INITRD_FS_TARGET;
                         else if (mount_is_network(me))
@@ -662,7 +671,7 @@ static int parse_fstab(bool initrd) {
                                       me->mnt_type,
                                       me->mnt_opts,
                                       me->mnt_passno,
-                                      makefs*MAKEFS | growfs*GROWFS | noauto*NOAUTO | nofail*NOFAIL | automount*AUTOMOUNT | rwonly*RWONLY,
+                                      flags,
                                       post,
                                       fstab);
                 }