glusterfs.git/xlators/protocol, branch v4.1.0

protocol/server: Fix xdata leak in seek fop

2018-06-12T07:08:02+00:00

Change-Id: I6125283ed22c04564f0b77bb7a50579a83e02eb0
fixes: bz#1590128
Signed-off-by: Pranith Kumar K 
(cherry picked from commit fd5b48ea0afd907deb08604415bee14ab65f378b)

protocol/client: Don't send fops till SETVOLUME is complete

2018-05-31T20:29:45+00:00

An earlier commit set conf->connected just after rpc layer sends
RPC_CLNT_CONNECT event. However, success of socket level connection
connection doesn't indicate brick stack is ready to receive fops, as
an handshake has to be done b/w client and server after
RPC_CLNT_CONNECT event. Any fop sent to brick in the window between,
* protocol/client receiving RPC_CLNT_CONNECT event
* protocol/client receiving a successful setvolume response

can end up accessing an uninitialized brick stack. So, set
conf->connected only after a successful SETVOLUME.

Change-Id: I139a03d2da6b0d95a0d68391fcf54b00e749decf
fixes: bz#1584633
Signed-off-by: Raghavendra G 
(cherry picked from commit 430e4872db43447c8a15b638760d23c188257139)

Revert "glusterfsd: Memleak in glusterfsd process while brick mux is on"

2018-05-25T02:05:37+00:00

Updates: bz#1582286
This reverts commit 7c3cc485054e4ede1efb358552135b432fb7047a.
Change-Id: I831d646112bcfa13d0c2153482ad00ff1b23aa6c
Signed-off-by: Mohit Agrawal

Revert "gluster: Sometimes Brick process is crashed at the time of stopping brick"

2018-05-25T02:05:37+00:00

Updates: bz#1582286
This reverts commit 0043c63f70776444f69667a4ef9596217ecb42b7.
Change-Id: Iab3b4f4a54e122c589e515add93c6effc966b3e0

Revert "server: fix unresolved symbols by moving them to libglusterfs"

2018-05-25T02:05:37+00:00

Updates: bz#1582286
This reverts commit 408a6d07ababde234ddeafe16687aacd2b810b42.
Change-Id: If8247d7980d698141f47130a3c532b942408ec2b

feature/leases : fixing bugs found while testing glfs_test.t

2018-05-04T17:13:13+00:00

Change-Id: Iee8f431601ecda184108a079f665e05902b0f78b
updates: #350
Signed-off-by: Jiffin Tony Thottan

protocol/server : unwind as per op version

2018-05-03T07:16:21+00:00

Change-Id: Id6717640ac14881b490e512c4682e45ffffa7f5b
fixes: bz#1570538
BUG: 1570538
Signed-off-by: Ashish Pandey

server/resolver: don't trust inode-table for RESOLVE_NOT

2018-04-30T04:58:08+00:00

There have been known races between fops which add a dentry (like
lookup, create, mknod etc) and fops that remove a dentry (like rename,
unlink, rmdir etc) due to which stale dentries are left out in inode
table even though the dentry doesn't exist on backend. For eg.,
consider a lookup (parent/bname) and unlink (parent/bname) racing in
the following order:

* lookup hits storage/posix and finds that dentry exists
* unlink removes the dentry on storage/posix
* unlink reaches protocol/server where the dentry (parent/bname) is
  unlinked from the inode
* lookup reaches protocol/server and creates a dentry (parent/bname)
  on the inode

Now we've a stale dentry (parent/bname) associated with the inode in
itable. This situation is bad for fops like link, create etc which
invoke resolver with type RESOLVE_NOT. These fops fail with EEXIST
even though there is no such dentry on backend fs. This issue can be
solved in two ways:

* Enable "dentry fop serializer" xlator [1].
  # gluster volume set features.sdfs on

* Make sure resolver does a lookup on backend when it finds a dentry
  in itable and validates the state of itable.
   - If a dentry is not found, unlink those stale dentries from itable
     and continue with fop
   - If dentry is found, fail the fop with EEXIST

This patch implements second solution as sdfs is not enabled by
default in brick xlator stack. Once sdfs is enabled by default, this
patch can be reverted.

[1] https://github.com/gluster/glusterfs/issues/397

Change-Id: Ia8bb0cf97f97cb0e72639bce8aadb0f6d3f4a34a
updates: bz#1543279
BUG: 1543279
Signed-off-by: Raghavendra G

server/auth: add option for strict authentication

2018-04-20T20:44:06+00:00

When this option is enabled, we will check for a matching
username and password, if not found then the connection will
be rejected. This also does a checksum validation of volfile

The option is invalid when SSL/TLS is in use, at which point
the SSL/TLS certificate user name is used to validate and
hence authorize the right user. This expects TLS allow rules
to be setup correctly rather than the default *.

This option is not settable, as a result this cannot be enabled
for volumes using the CLI. This is used with the shared storage
volume, to restrict access to the same in non-SSL/TLS environments
to the gluster peers only.

Tested:
  ./tests/bugs/protocol/bug-1321578.t
  ./tests/features/ssl-authz.t
  - Ran tests on volumes with and without strict auth
    checking (as brick vol file needed to be edited to test,
    or rather to enable the option)
  - Ran tests on volumes to ensure existing mounts are
    disconnected when we enable strict checking

Change-Id: I2ac4f0cfa5b59cc789cc5a265358389b04556b59
fixes: bz#1568844
Signed-off-by: Mohammed Rafi KC 
Signed-off-by: ShyamsundarR

server: fix unresolved symbols by moving them to libglusterfs

2018-04-20T07:55:29+00:00

Problem: glusterd2 build is failed due to undefined symbol
         (xlator_mem_cleanup , glusterfsd_ctx) in server.so

Solution: To resolve the same done below two changes
          1) Move xlator_mem_cleanup code from glusterfsd-mgmt.c
             to xlator.c to be part of libglusterfs.so
          2) replace glusterfsd_ctx to this->ctx because symbol
             glusterfsd_ctx is not part of server.so

BUG: 1544090
Change-Id: Ie5e6fba9ed458931d08eb0948d450aa962424ae5
fixes: bz#1544090
Signed-off-by: Mohit Agrawal