update TODO

[elogind.git] / src / gpt-auto-generator / gpt-auto-generator.c

diff --git a/src/gpt-auto-generator/gpt-auto-generator.c b/src/gpt-auto-generator/gpt-auto-generator.c
index cd24d9483ac4837705905f94ed2d455f7ce6711d..32e9b78a1dc4e97ddb81aac01fb5929a28942408 100644 (file)
--- a/src/gpt-auto-generator/gpt-auto-generator.c
+++ b/src/gpt-auto-generator/gpt-auto-generator.c
@@ -68,10 +68,8 @@ static int add_swap(const char *path) {
                 return log_oom();
 
         f = fopen(unit, "wxe");
-        if (!f) {
-                log_error("Failed to create unit file %s: %m", unit);
-                return -errno;
-        }
+        if (!f)
+                return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
 
         fprintf(f,
                 "# Automatically generated by systemd-gpt-auto-generator\n\n"
@@ -83,20 +81,16 @@ static int add_swap(const char *path) {
                 path);
 
         fflush(f);
-        if (ferror(f)) {
-                log_error("Failed to write unit file %s: %m", unit);
-                return -errno;
-        }
+        if (ferror(f))
+                return log_error_errno(errno, "Failed to write unit file %s: %m", unit);
 
         lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
         if (!lnk)
                 return log_oom();
 
         mkdir_parents_label(lnk, 0755);
-        if (symlink(unit, lnk) < 0) {
-                log_error("Failed to create symlink %s: %m", lnk);
-                return -errno;
-        }
+        if (symlink(unit, lnk) < 0)
+                return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
 
         return 0;
 }
@@ -124,14 +118,12 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                 return log_oom();
 
         p = strjoin(arg_dest, "/", n, NULL);
-        if (!n)
+        if (!p)
                 return log_oom();
 
         f = fopen(p, "wxe");
-        if (!f) {
-                log_error("Failed to create unit file %s: %m", p);
-                return -errno;
-        }
+        if (!f)
+                return log_error_errno(errno, "Failed to create unit file %s: %m", p);
 
         fprintf(f,
                 "# Automatically generated by systemd-gpt-auto-generator\n\n"
@@ -144,7 +136,6 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                 "Before=umount.target cryptsetup.target\n"
                 "After=%s\n"
                 "IgnoreOnIsolate=true\n"
-                "After=systemd-readahead-collect.service systemd-readahead-replay.service\n\n"
                 "[Service]\n"
                 "Type=oneshot\n"
                 "RemainAfterExit=yes\n"
@@ -156,10 +147,8 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                 id);
 
         fflush(f);
-        if (ferror(f)) {
-                log_error("Failed to write file %s: %m", p);
-                return -errno;
-        }
+        if (ferror(f))
+                return log_error_errno(errno, "Failed to write file %s: %m", p);
 
         from = strappenda("../", n);
 
@@ -168,10 +157,8 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                 return log_oom();
 
         mkdir_parents_label(to, 0755);
-        if (symlink(from, to) < 0) {
-                log_error("Failed to create symlink %s: %m", to);
-                return -errno;
-        }
+        if (symlink(from, to) < 0)
+                return log_error_errno(errno, "Failed to create symlink %s: %m", to);
 
         free(to);
         to = strjoin(arg_dest, "/cryptsetup.target.requires/", n, NULL);
@@ -179,10 +166,8 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                 return log_oom();
 
         mkdir_parents_label(to, 0755);
-        if (symlink(from, to) < 0) {
-                log_error("Failed to create symlink %s: %m", to);
-                return -errno;
-        }
+        if (symlink(from, to) < 0)
+                return log_error_errno(errno, "Failed to create symlink %s: %m", to);
 
         free(to);
         to = strjoin(arg_dest, "/dev-mapper-", e, ".device.requires/", n, NULL);
@@ -190,10 +175,8 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                 return log_oom();
 
         mkdir_parents_label(to, 0755);
-        if (symlink(from, to) < 0) {
-                log_error("Failed to create symlink %s: %m", to);
-                return -errno;
-        }
+        if (symlink(from, to) < 0)
+                return log_error_errno(errno, "Failed to create symlink %s: %m", to);
 
         free(p);
         p = strjoin(arg_dest, "/dev-mapper-", e, ".device.d/50-job-timeout-sec-0.conf", NULL);
@@ -205,10 +188,8 @@ static int add_cryptsetup(const char *id, const char *what, bool rw, char **devi
                         "# Automatically generated by systemd-gpt-auto-generator\n\n"
                         "[Unit]\n"
                         "JobTimeoutSec=0\n"); /* the binary handles timeouts anyway */
-        if (r < 0) {
-                log_error("Failed to write device drop-in: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to write device drop-in: %m");
 
         ret = strappend("/dev/mapper/", id);
         if (!ret)
@@ -257,10 +238,8 @@ static int add_mount(
                 return log_oom();
 
         f = fopen(p, "wxe");
-        if (!f) {
-                log_error("Failed to create unit file %s: %m", unit);
-                return -errno;
-        }
+        if (!f)
+                return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
 
         fprintf(f,
                 "# Automatically generated by systemd-gpt-auto-generator\n\n"
@@ -289,10 +268,8 @@ static int add_mount(
         fprintf(f, "Options=%s\n", rw ? "rw" : "ro");
 
         fflush(f);
-        if (ferror(f)) {
-                log_error("Failed to write unit file %s: %m", p);
-                return -errno;
-        }
+        if (ferror(f))
+                return log_error_errno(errno, "Failed to write unit file %s: %m", p);
 
         if (post) {
                 lnk = strjoin(arg_dest, "/", post, ".requires/", unit, NULL);
@@ -300,10 +277,8 @@ static int add_mount(
                         return log_oom();
 
                 mkdir_parents_label(lnk, 0755);
-                if (symlink(p, lnk) < 0) {
-                        log_error("Failed to create symlink %s: %m", lnk);
-                        return -errno;
-                }
+                if (symlink(p, lnk) < 0)
+                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
         }
 
         return 0;
@@ -340,7 +315,7 @@ static int probe_and_add_mount(
         if (!b) {
                 if (errno == 0)
                         return log_oom();
-                log_error("Failed to allocate prober: %m");
+                log_error_errno(errno, "Failed to allocate prober: %m");
                 return -errno;
         }
 
@@ -354,7 +329,7 @@ static int probe_and_add_mount(
         else if (r != 0) {
                 if (errno == 0)
                         errno = EIO;
-                log_error("Failed to probe %s: %m", what);
+                log_error_errno(errno, "Failed to probe %s: %m", what);
                 return -errno;
         }
 
@@ -395,22 +370,30 @@ static int enumerate_partitions(dev_t devnum) {
                 return log_oom();
 
         parent = udev_device_get_parent(d);
-        if (!parent)
+        if (!parent) {
+                log_debug("Not a partitioned device, ignoring.");
                 return 0;
+        }
 
         /* Does it have a devtype? */
         devtype = udev_device_get_devtype(parent);
-        if (!devtype)
+        if (!devtype) {
+                log_debug("Parent doesn't have a device type, ignoring.");
                 return 0;
+        }
 
         /* Is this a disk or a partition? We only care for disks... */
-        if (!streq(devtype, "disk"))
+        if (!streq(devtype, "disk")) {
+                log_debug("Parent isn't a raw disk, ignoring.");
                 return 0;
+        }
 
         /* Does it have a device node? */
         node = udev_device_get_devnode(parent);
-        if (!node)
+        if (!node) {
+                log_debug("Parent device does not have device node, ignoring.");
                 return 0;
+        }
 
         log_debug("Root device %s.", node);
 
@@ -424,12 +407,10 @@ static int enumerate_partitions(dev_t devnum) {
                 if (errno == 0)
                         return log_oom();
 
-                log_error("Failed allocate prober: %m");
+                log_error_errno(errno, "Failed allocate prober: %m");
                 return -errno;
         }
 
-        blkid_probe_enable_superblocks(b, 1);
-        blkid_probe_set_superblocks_flags(b, BLKID_SUBLKS_TYPE);
         blkid_probe_enable_partitions(b, 1);
         blkid_probe_set_partitions_flags(b, BLKID_PARTS_ENTRY_DETAILS);
 
@@ -440,7 +421,7 @@ static int enumerate_partitions(dev_t devnum) {
         else if (r != 0) {
                 if (errno == 0)
                         errno = EIO;
-                log_error("Failed to probe %s: %m", node);
+                log_error_errno(errno, "Failed to probe %s: %m", node);
                 return -errno;
         }
 
@@ -449,13 +430,15 @@ static int enumerate_partitions(dev_t devnum) {
         if (r != 0) {
                 if (errno == 0)
                         errno = EIO;
-                log_error("Failed to determine partition table type of %s: %m", node);
+                log_error_errno(errno, "Failed to determine partition table type of %s: %m", node);
                 return -errno;
         }
 
         /* We only do this all for GPT... */
-        if (!streq_ptr(pttype, "gpt"))
+        if (!streq_ptr(pttype, "gpt")) {
+                log_debug("Not a GPT partition table, ignoring.");
                 return 0;
+        }
 
         errno = 0;
         pl = blkid_probe_get_partitions(b);
@@ -463,7 +446,7 @@ static int enumerate_partitions(dev_t devnum) {
                 if (errno == 0)
                         return log_oom();
 
-                log_error("Failed to list partitions of %s: %m", node);
+                log_error_errno(errno, "Failed to list partitions of %s: %m", node);
                 return -errno;
         }
 
@@ -480,10 +463,8 @@ static int enumerate_partitions(dev_t devnum) {
                 return log_oom();
 
         r = udev_enumerate_scan_devices(e);
-        if (r < 0) {
-                log_error("Failed to enumerate partitions on %s: %s", node, strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to enumerate partitions on %s: %m", node);
 
         first = udev_enumerate_get_list_entry(e);
         udev_list_entry_foreach(item, first) {
@@ -673,8 +654,8 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
                 r = parse_boolean(value);
                 if (r < 0)
                         log_warning("Failed to parse gpt-auto switch %s. Ignoring.", value);
-
-                arg_enabled = r;
+                else
+                        arg_enabled = r;
 
         } else if (streq(key, "root") && value) {
 
@@ -687,8 +668,6 @@ static int parse_proc_cmdline_item(const char *key, const char *value) {
                 arg_root_rw = true;
         else if (streq(key, "ro") && !value)
                 arg_root_rw = false;
-        else if (startswith(key, "systemd.gpt-auto.") || startswith(key, "rd.systemd.gpt-auto."))
-                log_warning("Unknown kernel switch %s. Ignoring.", key);
 
         return 0;
 }
@@ -707,10 +686,8 @@ static int add_root_mount(void) {
         if (r == -ENOENT) {
                 log_debug("EFI loader partition unknown, exiting.");
                 return 0;
-        } else if (r < 0) {
-                log_error("Failed to read ESP partition UUID: %s", strerror(-r));
-                return r;
-        }
+        } else if (r < 0)
+                return log_error_errno(r, "Failed to read ESP partition UUID: %m");
 
         /* OK, we have an ESP partition, this is fantastic, so let's
          * wait for a root device to show up. A udev rule will create
@@ -734,10 +711,9 @@ static int add_mounts(void) {
         int r;
 
         r = get_block_device("/", &devno);
-        if (r < 0) {
-                log_error("Failed to determine block device of root file system: %s", strerror(-r));
-                return r;
-        } else if (r == 0) {
+        if (r < 0)
+                return log_error_errno(r, "Failed to determine block device of root file system: %m");
+        else if (r == 0) {
                 log_debug("Root file system not on a (single) block device.");
                 return 0;
         }
@@ -767,8 +743,9 @@ int main(int argc, char *argv[]) {
                 return EXIT_SUCCESS;
         }
 
-        if (parse_proc_cmdline(parse_proc_cmdline_item) < 0)
-                return EXIT_FAILURE;
+        r = parse_proc_cmdline(parse_proc_cmdline_item);
+        if (r < 0)
+                log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
 
         if (!arg_enabled) {
                 log_debug("Disabled, exiting.");