130 lines
4.0 KiB
Diff
130 lines
4.0 KiB
Diff
---
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Makefile.am | 19 +++++
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src/udev/rootsymlink_generator/rootsymlink_generator.c | 57 +++++++++++++++++
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units/systemd-udev-root-symlink.service | 10 ++
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units/systemd-udev-root-symlink.service.in | 10 ++
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4 files changed, 96 insertions(+)
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Index: systemd-221/Makefile.am
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===================================================================
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--- systemd-221.orig/Makefile.am
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+++ systemd-221/Makefile.am
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@@ -3754,6 +3754,25 @@ EXTRA_DIST += \
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# ------------------------------------------------------------------------------
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+rootsymlink_generator_SOURCES = \
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+ src/udev/rootsymlink_generator/rootsymlink_generator.c
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+
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+rootsymlink_generator_CFLAGS = \
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+ $(AM_CFLAGS)
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+
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+udevlibexec_PROGRAMS += \
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+ rootsymlink-generator
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+
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+nodist_systemunit_DATA += \
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+ units/systemd-udev-root-symlink.service
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+
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+SYSINIT_TARGET_WANTS += \
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+ systemd-udev-root-symlink.service
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+
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+EXTRA_DIST += \
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+ units/systemd-udev-root-symlink.service.in
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+
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+# ------------------------------------------------------------------------------
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ata_id_SOURCES = \
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src/udev/ata_id/ata_id.c
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Index: systemd-221/src/udev/rootsymlink_generator/rootsymlink_generator.c
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===================================================================
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--- /dev/null
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+++ systemd-221/src/udev/rootsymlink_generator/rootsymlink_generator.c
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@@ -0,0 +1,57 @@
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+/*
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+ * Copyright (C) 2014-2015 Robert Milasan <rmilasan@suse.com>
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <stdio.h>
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+#include <string.h>
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+#include <errno.h>
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+#include <sys/stat.h>
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+#include <sys/types.h>
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+#include <fcntl.h>
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+#include <unistd.h>
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+
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+#define BUFFER_SIZE 128
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+
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+#define _ROOTDEV_ "/"
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+#define _PATH_ "/run/udev/rules.d"
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+#define _FILE_ "10-root-symlink.rules"
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+
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+int main(void)
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+{
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+ char filename[BUFFER_SIZE], buf[BUFFER_SIZE];
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+ struct stat statbuf;
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+ int fd;
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+
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+ if (stat(_ROOTDEV_, &statbuf) < 0)
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+ return 1;
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+ if (major(statbuf.st_dev) <= 0)
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+ return 0;
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+ if (mkdir(_PATH_, 0755) < 0 && errno != EEXIST)
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+ return errno;
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+ snprintf(filename, BUFFER_SIZE, "%s/%s", _PATH_, _FILE_);
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+ fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0644);
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+ if (fd < 0)
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+ return errno;
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+ snprintf(buf, BUFFER_SIZE,
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+ "ACTION==\"add|change\", SUBSYSTEM==\"block\", "
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+ "ENV{MAJOR}==\"%d\", ENV{MINOR}==\"%d\", SYMLINK+=\"root\"\n",
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+ major(statbuf.st_dev), minor(statbuf.st_dev));
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+ if (write(fd, buf, strlen(buf)) < 0)
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+ return errno;
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+ if (close(fd) < 0)
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+ return errno;
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+ return 0;
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+}
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Index: systemd-221/units/systemd-udev-root-symlink.service
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===================================================================
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--- /dev/null
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+++ systemd-221/units/systemd-udev-root-symlink.service
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@@ -0,0 +1,10 @@
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+[Unit]
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+Description=Rule generator for /dev/root symlink
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+Before=systemd-udevd.service
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+DefaultDependencies=no
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+ConditionPathIsReadWrite=/run/udev
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+
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+[Service]
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+Type=oneshot
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+RemainAfterExit=yes
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+ExecStart=/usr/lib/udev/rootsymlink-generator
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Index: systemd-221/units/systemd-udev-root-symlink.service.in
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===================================================================
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--- /dev/null
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+++ systemd-221/units/systemd-udev-root-symlink.service.in
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@@ -0,0 +1,10 @@
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+[Unit]
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+Description=Rule generator for /dev/root symlink
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+Before=systemd-udevd.service
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+DefaultDependencies=no
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+ConditionPathIsReadWrite=/run/udev
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+
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+[Service]
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+Type=oneshot
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+RemainAfterExit=yes
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+ExecStart=@udevlibexec@/rootsymlink-generator
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