cryptsetup: RequiresMountsFor if source is a file

[elogind.git] / src / cryptsetup / cryptsetup-generator.c

diff --git a/src/cryptsetup/cryptsetup-generator.c b/src/cryptsetup/cryptsetup-generator.c
index 0a51db8939dcfe5e123106fe436bd70907d73f94..a8c856f7df45ea993fa11d755d927f27e546ffab 100644 (file)
--- a/src/cryptsetup/cryptsetup-generator.c
+++ b/src/cryptsetup/cryptsetup-generator.c
@@ -102,18 +102,17 @@ static int create_disk(
                 return -errno;
         }
 
-        fprintf(f,
+        fputs(
                 "# Automatically generated by systemd-cryptsetup-generator\n\n"
                 "[Unit]\n"
-                "Description=Cryptography Setup for %%I\n"
+                "Description=Cryptography Setup for %I\n"
                 "Documentation=man:systemd-cryptsetup@.service(8) man:crypttab(5)\n"
                 "SourcePath=/etc/crypttab\n"
                 "Conflicts=umount.target\n"
                 "DefaultDependencies=no\n"
-                "BindsTo=%s dev-mapper-%%i.device\n"
-                "After=systemd-readahead-collect.service systemd-readahead-replay.service %s\n"
-                "Before=umount.target\n",
-                d, d);
+                "BindsTo=dev-mapper-%i.device\n"
+                "After=systemd-readahead-collect.service systemd-readahead-replay.service\n",
+                f);
 
         if (!nofail)
                 fprintf(f,
@@ -126,6 +125,17 @@ static int create_disk(
         else
                 fputs("Before=local-fs.target\n", f);
 
+        if (is_device_path(u))
+                fprintf(f,
+                        "BindsTo=%s\n"
+                        "After=%s\n"
+                        "Before=umount.target\n",
+                        d, d);
+        else
+                fprintf(f,
+                        "RequiresMountsFor=%s\n",
+                        u);
+
         fprintf(f,
                 "\n[Service]\n"
                 "Type=oneshot\n"
@@ -169,8 +179,6 @@ static int create_disk(
                 }
 
                 free(to);
-                to = NULL;
-
                 if (!nofail)
                         to = strjoin(arg_dest, "/cryptsetup.target.requires/", n, NULL);
                 else
@@ -183,12 +191,13 @@ static int create_disk(
                         log_error("Failed to create symlink '%s' to '%s': %m", from, to);
                         return -errno;
                 }
-
-                free(to);
-                to = NULL;
         }
 
         e = unit_name_escape(name);
+        if (!e)
+                return log_oom();
+
+        free(to);
         to = strjoin(arg_dest, "/dev-mapper-", e, ".device.requires/", n, NULL);
         if (!to)
                 return log_oom();
@@ -259,26 +268,14 @@ static int parse_proc_cmdline(char ***arg_proc_cmdline_disks) {
                         }
 
                 } else if (startswith(word, "luks.uuid=")) {
-                        char **t;
-
-                        t = strv_append(*arg_proc_cmdline_disks, word + 10);
-                        if (!t)
+                        if (strv_extend(arg_proc_cmdline_disks, word + 10) < 0)
                                 return log_oom();
 
-                        strv_free(*arg_proc_cmdline_disks);
-                        *arg_proc_cmdline_disks = t;
-
                 } else if (startswith(word, "rd.luks.uuid=")) {
 
                         if (in_initrd()) {
-                                char **t;
-
-                                t = strv_append(*arg_proc_cmdline_disks, word + 13);
-                                if (!t)
+                                if (strv_extend(arg_proc_cmdline_disks, word + 13) < 0)
                                         return log_oom();
-
-                                strv_free(*arg_proc_cmdline_disks);
-                                *arg_proc_cmdline_disks = t;
                         }
 
                 } else if (startswith(word, "luks.") ||
@@ -371,17 +368,11 @@ int main(int argc, char *argv[]) {
                                                 return log_oom();
 
                                         if (streq(proc_device, device) || streq(proc_name, name)) {
-                                                char **t;
-
                                                 if (create_disk(name, device, password, options) < 0)
                                                         r = EXIT_FAILURE;
 
-                                                t = strv_append(arg_proc_cmdline_disks_done, p);
-                                                if (!t)
+                                                if (strv_extend(&arg_proc_cmdline_disks_done, p) < 0)
                                                         return log_oom();
-
-                                                strv_free(arg_proc_cmdline_disks_done);
-                                                arg_proc_cmdline_disks_done = t;
                                         }
                                 }
                         } else {