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* remove useless if-before-free (and free-like) functionsJim Meyering2012-07-131-2/+1
| | | | | | | | | | | | See comments in http://bugzilla.redhat.com/839925 for the code to perform this change. Signed-off-by: Jim Meyering <meyering@redhat.com> BUG: 839925 Change-Id: I10e4ecff16c3749fe17c2831c516737e08a3205a Reviewed-on: http://review.gluster.com/3661 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* read_conf: don't let a corrupt config file cause invalid line[-1] referenceJim Meyering2012-07-111-2/+2
| | | | | | | | | Change-Id: Ifbc698768d9418a54c1501efa335edd4048cfd41 BUG: 789278 Signed-off-by: Jim Meyering <meyering@redhat.com> Reviewed-on: http://review.gluster.com/3603 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* get_mnt_opts: don't let empty option string cause (*mpt_optsp)[-1] referenceJim Meyering2012-07-021-2/+2
| | | | | | | | | | | | This looks like a "can't happen" case (depending on what add_option does), so you may prefer to add an assertion instead. Change-Id: Ibfdd34fca045e5213de836cca252bd96408b2136 BUG: 789278 Signed-off-by: Jim Meyering <meyering@redhat.com> Reviewed-on: http://review.gluster.com/3604 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: sync with upstreamCsaba Henk2012-05-211-46/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cherry-picked following commits from git://fuse.git.sourceforge.net/gitroot/fuse/fuse form 555d6b50..acc5c79d interval: commit 1193a39c0869a3608f22472735bcffdcccb6b2a5 Author: Reuben Hawkins <reubenhwk@gmail.com> cleaning up warnings commit dba9185999dfa35161d4c810735df0ab3fde5104 Author: Laszlo Papp <ext-laszlo.papp@nokia.com> Check the 'mtablock' for negative value commit e63a9d8ee6529c9d15a87745276f45c9bdad3961 Author: Miklos Szeredi <miklos@szeredi.hu> fusermount: clean up do_mount() function commit 81fee822a098a3e26969401fc486f136465f96f0 Author: Laszlo Papp <ext-laszlo.papp@nokia.com> Eliminate the unused value commit 60eb44ee5eb2756465610b215968f176f4aaac6e Author: Laszlo Papp <ext-laszlo.papp@nokia.com> Fix resource leaks in fusermount commit d6bec4020fddd4dd67248789a1af600580f2cbda Author: Miklos Szeredi <mszeredi@suse.cz> In case of failure to add to /etc/mtab don't umount. commit 1e7607ff89c65b005f69e27aeb1649d624099873 Author: Miklos Szeredi <mszeredi@suse.cz> fusermount: chdir to / before performing mount/umount commit 2fcbc2a5a94983813c533c015134c6974f8ee636 Author: Miklos Szeredi <miklos@szeredi.hu> fusermount: don't save/restore cwd commit bd99f9cf24e16643752b02fb4fa7b48f2124ab4e Author: Miklos Szeredi <miklos@szeredi.hu> Fix check for read-only fs in mtab update Nb.: - not picked changes that implement and enforce mount/umount mechanisms based on newer util-linux features (umount --fake and --no-canonicalize) - not picked fusermount "auto-unmount" feature Change-Id: Ib9498516184336e77ec047e5414125332d0a4292 BUG: 762389 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3343 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: reorganize mounting codeCsaba Henk2012-05-213-21/+67
| | | | | | | | | | | | | | | | | | | | Macro-driven conditional compilation was a chaos. New scheme is: contrib/fuse-lib/mount-common.c: libfuse routines used both by glusterfs and fusermount contrib/fuse-lib/mount.c: libfuse-derived but customized mounting code for glusterfs contrib/fuse-util/mount_util.c: libfuse routines used only by fusermount Change-Id: I3e0ba7f74e36556b78244cd7676eb4d379939602 BUG: 762389 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3342 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse, glusterfsd: mount logic fixesCsaba Henk2012-05-211-12/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7d0397c2 introduced two issues: i) broke the libfuse derived mount logic (details below) ii) in case of a daemonized glusterfs client is ran as daemon, parent process can return earlier than the mount is in place, which breaks agents that programmatically do a gluster mount via a direct call to glusterfs (ie. not via mount(8)). This patch fixes these issues by a refactor that merges the approaches sported by commits 7d0397c2 fuse: allow requests during mount (needed for SELinux labels) c5d781e0 upon daemonizing, wait on mtab update to terminate in parent Original daemonized libfuse event flow is as follows: try: fd = open("/dev/fuse") mount("-oopts,fd=%s" % fd ...) mount(8) -f # manipulate mtab except: sp = socketpair() env _FUSE_COMMFD=sp fusermount -oopts fd = receive_fd(sp) where fusermount(1) does: fd = open("/dev/fuse") mount("-oopts,fd=%d" % fd ...) sp = atoi(getenv("_FUSE_COMMFD")) send_fd(sp, fd) daemonize( # in child fuse_loop(fd) ) # in parent exit() As of 013850c9 (instead of adopting FUSE's 47e61004¹), we went for async mtab manipulation, and as of c5d781e0, still wanted keep that in sync with termination of daemon parent, so we changed it to: try: fd = open("/dev/fuse") mount("-oopts,fd=%s" % fd ...) pid = fork( # in child mount(8) -f ) except: sp = socketpair() env _FUSE_COMMFD=sp fusermount -oopts fd = receive_fd(sp) daemonize( fuse_loop(fd) ) waitpid(pid) exit() (Note the new approch came only to direct [privileged] mount, so fusermount based mounting was already partially broken.) As of 7d0397c2, with the purpose of facilitating async mount, the event flow was practically reduced to: fd = open("/dev/fuse") fork( mount("-oopts,fd=%s" % fd ...) fork( mount(8) -n ) ) daemonize( fuse_loop(fd) ) exit() Thus fusermount based mounting become defunct; however, the dead code was still kept around. So, we should either drop it or fix it. Also, the mtab manipulator is forked into yet another child with no purpose, while syncing with it in daemon parent is broken. mount(2) is neither synced with parent. Now we are coming to the following scheme: fd = open("/dev/fuse") pid = fork( try: mount("-oopts,fd=%s" % fd ...) mount(8) -n except: env _FUSE_DEVFD=fd fusermount -oopts ) where fusermount(1) does: fd = getenv("_FUSE_DEVFD") mount("-oopts,fd=%s" % fd ...) daemonize( fuse_loop(fd) ) waitpid(pid) exit() Nb.: - We can't help losing compatibility with upstream fusermount, as it sends back the fd only when mount(2) is completed, thus defeating the async mount approach. The 'getenv("_FUSE_DEVFD")' mechanism is specfic to glusterfs' fusermount (at the moment -- sure we can talk about it with upstream) - fusermount opens /dev/fuse at same privilege level as of original process², so we can bravely go on with doing the open unconditionally in original process - Original mounting code actually tries to mount through fusermount _twice_: if first attempt fails, then, assuming subtype support is missing in kernel, it tries again subtype stripped. However, this is redundant, as fusermount internally also performs the subtype check³. Therefore we simplified the logic to have just a single fusermount call. - we revert the changes to mount.glusterfs as of 7d0397c2, as now there is no issue with glusterfs to work around in that scope ¹ http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=blobdiff;f=ChangeLog;h=47e61004;hb=4c3d9b19;hpb=e61b775a ² http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=blob;f=util/fusermount.c;h=b2e87d95#l1023 ³ http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=blob;f=util/fusermount.c;h=b2e87d95#l839 Change-Id: I0c4ab70e0c5ad7b27337228749b266bcd0ba941d BUG: 811217 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3341 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fusermount: Build problem fixed with new glibcHarshavardhana2011-11-101-1/+1
| | | | | | | | Change-Id: Id25e688d3dbecb74d820388faec5ee5041f21630 BUG: 3797 Reviewed-on: http://review.gluster.com/714 Reviewed-by: Anand Avati <avati@gluster.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* contrib/fuse: update from upstream [555d6b50 in ↵Csaba Henk2010-10-011-3/+17
| | | | | | | | | | | | | | | | | | | | | | | | git://fuse.git.sourceforge.net/fuse/fuse] """ commit 555d6b504308eac6b976321ce938ee4bec62c354 Author: Miklos Szeredi <mszeredi@suse.cz> Date: Tue Sep 28 10:13:24 2010 +0200 Fix option escaping for fusermount. If the "fsname=" option contained a comma then the option parser in fusermount was confused (Novell bugzilla #641480). Fix by escaping commas when passing them over to fusermount. Reported by Jan Engelhardt """ Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1752 (sync with upstream for "Fix option escaping for fusermount.") URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1752
* fusermount: bring in updates from upstreamCsaba Henk2010-04-291-14/+32
| | | | | | | | | | | | | * Fix checking for symlinks in umount from /tmp. Reported by Al Viro * Fix umounting if /tmp is a symlink. Reported by Franco Broi Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 657 (Metabug for tracking fuse upstream) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=657
* fuse: bring over recent mounting code changes from libfuse upstreamCsaba Henk2010-02-212-58/+324
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following commits were ported (commit ids as of http://git.gluster.com/?p=users/csaba/fuse.git repo): commit 06fe3eb9c864b69bea98600c0a7eab7b63834735 Author: mszeredi <mszeredi> Date: Thu Feb 18 11:05:12 2010 +0000 * Fix stack alignment for clone() ChangeLog | 4 ++++ include/fuse_lowlevel.h | 1 + util/fusermount.c | 9 ++++----- 3 files changed, 9 insertions(+), 5 deletions(-) commit dfe1aab6520d70d72d36edf0508fef9a865daa5f Author: mszeredi <mszeredi> Date: Tue Jan 26 18:20:12 2010 +0000 * Fix race if two "fusermount -u" instances are run in parallel. Reported by Dan Rosenberg * Make sure that the path to be unmounted doesn't refer to a symlink ChangeLog | 8 + lib/mount.c | 2 +- lib/mount_util.c | 31 +++-- lib/mount_util.h | 3 +- util/fusermount.c | 380 +++++++++++++++++++++++++++++++++++++++++++++-------- 5 files changed, 351 insertions(+), 73 deletions(-) Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 657 (Metabug for tracking fuse upstream) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=657
* Do not abort make install if a chown on the fuser-mount script does not succeed.Pavan Sondur2009-11-031-1/+1
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 343 (Placeholder bug for adding volgen into rpm, bdb makefile changes, etc) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=343
* bring in fusermountCsaba Henk2009-08-124-0/+1334
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