This lets libmount add in user options from /run/mount/utab, like
_netdev which is needed to get proper ordering against remote-fs.target
Signed-off-by: Chris Leech <cle...@redhat.com>
---
.travis.yml | 2 +-
Makefile.am | 4 +++-
README | 1 +
configure.ac | 10 +++++++++
src/core/build.h | 7 ++++++
src/core/mount.c | 65 ++++++++++++++++++++++++++------------------------------
6 files changed, 52 insertions(+), 37 deletions(-)
diff --git a/.travis.yml b/.travis.yml
index 7e5251c..4ea2bc2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ compiler:
- gcc
before_install:
- sudo apt-get update -qq
- - sudo apt-get install autotools-dev automake autoconf libtool libdbus-1-dev
libcap-dev libblkid-dev libpam-dev libcryptsetup-dev libaudit-dev libacl1-dev
libattr1-dev libselinux-dev liblzma-dev libgcrypt-dev libqrencode-dev
libmicrohttpd-dev gtk-doc-tools gperf python2.7-dev
+ - sudo apt-get install autotools-dev automake autoconf libtool libdbus-1-dev
libcap-dev libblkid-dev libmount-dev libpam-dev libcryptsetup-dev libaudit-dev
libacl1-dev libattr1-dev libselinux-dev liblzma-dev libgcrypt-dev
libqrencode-dev libmicrohttpd-dev gtk-doc-tools gperf python2.7-dev
script: ./autogen.sh && ./configure --enable-gtk-doc --enable-gtk-doc-pdf &&
make V=1 && sudo ./systemd-machine-id-setup && make check && make distcheck
after_failure: cat test-suite.log
notifications:
diff --git a/Makefile.am b/Makefile.am
index 3f9f3fa..042fb0e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1149,6 +1149,7 @@ libsystemd_core_la_CFLAGS = \
$(KMOD_CFLAGS) \
$(APPARMOR_CFLAGS) \
$(SECCOMP_CFLAGS) \
+ $(MOUNT_CFLAGS) \
-pthread
libsystemd_core_la_LIBADD = \
@@ -1161,7 +1162,8 @@ libsystemd_core_la_LIBADD = \
$(AUDIT_LIBS) \
$(KMOD_LIBS) \
$(APPARMOR_LIBS) \
- $(SECCOMP_LIBS)
+ $(SECCOMP_LIBS) \
+ $(MOUNT_LIBS)
if HAVE_SECCOMP
libsystemd_core_la_LIBADD += \
diff --git a/README b/README
index aefb349..84c6ed4 100644
--- a/README
+++ b/README
@@ -106,6 +106,7 @@ REQUIREMENTS:
glibc >= 2.14
libcap
+ libmount >= 2.20 (from util-linux)
libseccomp >= 1.0.0 (optional)
libblkid >= 2.20 (from util-linux) (optional)
libkmod >= 15 (optional)
diff --git a/configure.ac b/configure.ac
index 2c8be53..ecd53a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -427,6 +427,15 @@ fi
AM_CONDITIONAL(HAVE_BLKID, [test "$have_blkid" = "yes"])
#
------------------------------------------------------------------------------
+have_libmount=no
+PKG_CHECK_MODULES(MOUNT, [ mount >= 2.20 ],
+ [AC_DEFINE(HAVE_LIBMOUNT, 1, [Define if libmount is available])
have_libmount=yes], have_libmount=no)
+if test "x$have_libmount" = xno; then
+ AC_MSG_ERROR([*** libmount support required but libraries not found])
+fi
+AM_CONDITIONAL(HAVE_LIBMOUNT, [test "$have_libmount" = "yes"])
+
+#
------------------------------------------------------------------------------
have_seccomp=no
AC_ARG_ENABLE(seccomp, AS_HELP_STRING([--disable-seccomp], [Disable optional
SECCOMP support]))
if test "x$enable_seccomp" != "xno"; then
@@ -1375,6 +1384,7 @@ AC_MSG_RESULT([
efi: ${have_efi}
kmod: ${have_kmod}
blkid: ${have_blkid}
+ libmount: ${have_libmount}
dbus: ${have_dbus}
nss-myhostname: ${have_myhostname}
gudev: ${enable_gudev}
diff --git a/src/core/build.h b/src/core/build.h
index 24873ab..4f639ed 100644
--- a/src/core/build.h
+++ b/src/core/build.h
@@ -117,6 +117,12 @@
#define _BLKID_FEATURE_ "-BLKID"
#endif
+#ifdef HAVE_LIBMOUNT
+#define _LIBMOUNT_FEATURE_ "+LIBMOUNT"
+#else
+#define _LIBMOUNT_FEATURE_ "-LIBMOUNT"
+#endif
+
#ifdef HAVE_ELFUTILS
#define _ELFUTILS_FEATURE_ "+ELFUTILS"
#else
@@ -152,6 +158,7 @@
_LZ4_FEATURE_ " " \
_SECCOMP_FEATURE_ " " \
_BLKID_FEATURE_ " " \
+ _LIBMOUNT_FEATURE_ " " \
_ELFUTILS_FEATURE_ " " \
_KMOD_FEATURE_ " " \
_IDN_FEATURE_
diff --git a/src/core/mount.c b/src/core/mount.c
index 8b787f6..74a1da8 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -24,6 +24,7 @@
#include <mntent.h>
#include <sys/epoll.h>
#include <signal.h>
+#include <libmount.h>
#include "manager.h"
#include "unit.h"
@@ -1492,55 +1493,47 @@ fail:
return r;
}
+static inline void mnt_free_table_p(struct libmnt_table **tb) {
+ mnt_free_table(*tb);
+}
+
+static inline void mnt_free_iter_p(struct libmnt_iter **itr) {
+ mnt_free_iter(*itr);
+}
+
static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {
+ _cleanup_(mnt_free_table_p) struct libmnt_table *tb = NULL;
+ _cleanup_(mnt_free_iter_p) struct libmnt_iter *itr = NULL;
+ struct libmnt_fs *fs;
int r = 0;
- unsigned i;
assert(m);
- rewind(m->proc_self_mountinfo);
+ tb = mnt_new_table();
+ itr = mnt_new_iter(MNT_ITER_FORWARD);
+ if (!tb || !itr)
+ return log_oom();
- for (i = 1;; i++) {
- _cleanup_free_ char *device = NULL, *path = NULL, *options =
NULL, *options2 = NULL, *fstype = NULL, *d = NULL, *p = NULL, *o = NULL;
+ mnt_table_parse_mtab(tb, NULL);
+ if (r)
+ return r;
+
+ while (mnt_table_next_fs(tb, itr, &fs) == 0) {
+ const char *device, *path, *options, *fstype;
+ _cleanup_free_ const char *d = NULL, *p = NULL;
int k;
- k = fscanf(m->proc_self_mountinfo,
- "%*s " /* (1) mount id */
- "%*s " /* (2) parent id */
- "%*s " /* (3) major:minor */
- "%*s " /* (4) root */
- "%ms " /* (5) mount point */
- "%ms" /* (6) mount options */
- "%*[^-]" /* (7) optional fields */
- "- " /* (8) separator */
- "%ms " /* (9) file system type */
- "%ms" /* (10) mount source */
- "%ms" /* (11) mount options 2 */
- "%*[^\n]", /* some rubbish at the end */
- &path,
- &options,
- &fstype,
- &device,
- &options2);
-
- if (k == EOF)
- break;
-
- if (k != 5) {
- log_warning("Failed to parse
/proc/self/mountinfo:%u.", i);
- continue;
- }
-
- o = strjoin(options, ",", options2, NULL);
- if (!o)
- return log_oom();
+ device = mnt_fs_get_source(fs);
+ path = mnt_fs_get_target(fs);
+ options = mnt_fs_get_options(fs);
+ fstype = mnt_fs_get_fstype(fs);
d = cunescape(device);
p = cunescape(path);
if (!d || !p)
return log_oom();
- k = mount_add_one(m, d, p, o, fstype, set_flags);
+ k = mount_add_one(m, d, p, options, fstype, set_flags);
if (k < 0)
r = k;
}
@@ -1577,6 +1570,8 @@ static int mount_enumerate(Manager *m) {
int r;
assert(m);
+ mnt_init_debug(0);
+
if (!m->proc_self_mountinfo) {
m->proc_self_mountinfo = fopen("/proc/self/mountinfo", "re");
if (!m->proc_self_mountinfo)
--
1.9.3
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