X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcryptsetup-generator.c;h=db8ebdfb1882cfe00301af142f4908bcaee9e779;hp=3c3b99de51e26e5aa08824253546c00bb94be1c0;hb=71092d70af35567dd154d3de2ce04ce62e157a7c;hpb=260ab287953153a8b4ae13133adfdfc2b3514a46

diff --git a/src/cryptsetup-generator.c b/src/cryptsetup-generator.c
index 3c3b99de5..db8ebdfb1 100644
--- a/src/cryptsetup-generator.c
+++ b/src/cryptsetup-generator.c
@@ -33,6 +33,11 @@ static bool has_option(const char *haystack, const char *needle) {
         const char *f = haystack;
         size_t l;
 
+        assert(needle);
+
+        if (!haystack)
+                return false;
+
         l = strlen(needle);
 
         while ((f = strstr(f, needle))) {
@@ -42,7 +47,7 @@ static bool has_option(const char *haystack, const char *needle) {
                         continue;
                 }
 
-                if (f[l] != 0 && f[l] == ',') {
+                if (f[l] != 0 && f[l] != ',') {
                         f++;
                         continue;
                 }
@@ -62,10 +67,14 @@ static int create_disk(
         char *p = NULL, *n = NULL, *d = NULL, *u = NULL, *from = NULL, *to = NULL, *e = NULL;
         int r;
         FILE *f = NULL;
+        bool noauto, nofail;
 
         assert(name);
         assert(device);
 
+        noauto = has_option(options, "noauto");
+        nofail = has_option(options, "nofail");
+
         if (!(n = unit_name_build_escape("cryptsetup", name, ".service"))) {
                 r = -ENOMEM;
                 log_error("Failed to allocate unit name.");
@@ -98,13 +107,18 @@ static int create_disk(
 
         fprintf(f,
                 "[Unit]\n"
-                "Description=Cryptography Setup for %%f\n"
+                "Description=Cryptography Setup for %%I\n"
+                "Conflicts=umount.target\n"
                 "DefaultDependencies=no\n"
-                "BindTo=%s\n"
+                "BindTo=%s dev-mapper-%%i.device\n"
                 "After=systemd-readahead-collect.service systemd-readahead-replay.service %s\n"
-                "Before=dev-mapper-%%i.device shutdown.target\n",
+                "Before=umount.target\n",
                 d, d);
 
+        if (!nofail)
+                fprintf(f,
+                        "Before=cryptsetup.target\n");
+
         if (password && (streq(password, "/dev/urandom") ||
                          streq(password, "/dev/random") ||
                          streq(password, "/dev/hw_random")))
@@ -115,20 +129,21 @@ static int create_disk(
                 "\n[Service]\n"
                 "Type=oneshot\n"
                 "RemainAfterExit=yes\n"
+                "TimeoutSec=0\n" /* the binary handles timeouts anyway */
                 "ExecStart=" SYSTEMD_CRYPTSETUP_PATH " attach '%s' '%s' '%s' '%s'\n"
                 "ExecStop=" SYSTEMD_CRYPTSETUP_PATH " detach '%s'\n",
                 name, u, strempty(password), strempty(options),
                 name);
 
-        if (options && has_option(options, "tmp"))
+        if (has_option(options, "tmp"))
                 fprintf(f,
-                        "ExecStartPost=/sbin/mke2fs '%s'",
-                        u);
+                        "ExecStartPost=/sbin/mke2fs '/dev/mapper/%s'\n",
+                        name);
 
-        if (options && has_option(options, "swap"))
+        if (has_option(options, "swap"))
                 fprintf(f,
-                        "ExecStartPost=/sbin/mkswap '%s'",
-                        u);
+                        "ExecStartPost=/sbin/mkswap '/dev/mapper/%s'\n",
+                        name);
 
         fflush(f);
 
@@ -143,7 +158,7 @@ static int create_disk(
                 goto fail;
         }
 
-        if (!options || !has_option(options, "noauto")) {
+        if (!noauto) {
 
                 if (asprintf(&to, "%s/%s.wants/%s", arg_dest, d, n) < 0) {
                         r = -ENOMEM;
@@ -157,13 +172,34 @@ static int create_disk(
                         r = -errno;
                         goto fail;
                 }
+
+                free(to);
+                to = NULL;
+
+                if (!nofail)
+                        asprintf(&to, "%s/cryptsetup.target.requires/%s", arg_dest, n);
+                else
+                        asprintf(&to, "%s/cryptsetup.target.wants/%s", arg_dest, n);
+
+                if (!to) {
+                        r = -ENOMEM;
+                        goto fail;
+                }
+
+                mkdir_parents(to, 0755);
+
+                if (symlink(from, to) < 0) {
+                        log_error("Failed to create symlink '%s' to '%s': %m", from, to);
+                        r = -errno;
+                        goto fail;
+                }
         }
 
         free(to);
         to = NULL;
 
         e = unit_name_escape(name);
-        if (asprintf(&to, "%s/dev-mapper-%s.device.wants/%s", arg_dest, e, n) < 0) {
+        if (asprintf(&to, "%s/dev-mapper-%s.device.requires/%s", arg_dest, e, n) < 0) {
                 r = -ENOMEM;
                 goto fail;
         }
@@ -203,7 +239,8 @@ int main(int argc, char *argv[]) {
                 return EXIT_FAILURE;
         }
 
-        arg_dest = argv[1];
+        if (argc > 1)
+                arg_dest = argv[1];
 
         log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
         log_parse_environment();