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2012-09-21userns: Convert affs to use kuid/kgid wherwe appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert binder ipc to use kuidsEric W. Biederman
Cc: Arve Hjønnevåg <arve@android.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Add user namespace support to IMAEric W. Biederman
Use kuid's in the IMA rules. When reporting the current uid in audit logs use from_kuid to get a usable value. Cc: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert EVM to deal with kuids and kgids in it's hmac computationEric W. Biederman
Cc: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert hostfs to use kuid and kgid where appropriateEric W. Biederman
Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert tomoyo to use kuid and kgid where appropriateEric W. Biederman
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert apparmor to use kuid and kgid where appropriateEric W. Biederman
Cc: John Johansen <john.johansen@canonical.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert loop to use kuid_t instead of uid_tEric W. Biederman
Cc: Jens Axboe <jaxboe@fusionio.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert ipathfs to use GLOBAL_ROOT_UID and GLOBAL_ROOT_GIDEric W. Biederman
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert freevxfs to use kuid/kgid where appropriateEric W. Biederman
Cc: Christoph Hellwig <hch@infradead.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert the sysv filesystem to use kuid/kgid where appropriateEric W. Biederman
Cc: Christoph Hellwig <hch@infradead.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert the qnx6 filesystem to use kuid/kgid where appropriateEric W. Biederman
Cc: Kai Bankett <chaosman@ontika.net> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert the qnx4 filesystem to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Anders Larsen <al@alarsen.net> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert omfs to use kuid and kgid where appropriateEric W. Biederman
Acked-by: Bob Copeland <me@bobcopeland.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert ntfs to use kuid and kgid where appropriateEric W. Biederman
Cc: Anton Altaparmakov <anton@tuxera.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert nillfs2 to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert minix to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert logfs to use kuid/kgid where appropriateEric W. Biederman
Cc: Joern Engel <joern@logfs.org> Cc: Prasad Joshi <prasadjoshi.linux@gmail.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert isofs to use kuid/kgid where appropriateEric W. Biederman
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert hfsplus to use kuid and kgid where appropriateEric W. Biederman
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert hfs to use kuid and kgid where appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert exofs to use kuid/kgid where appropriateEric W. Biederman
Cc: Benny Halevy <bhalevy@tonian.com> Acked-by: Boaz Harrosh <bharrosh@panasas.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert efs to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert ecryptfs to use kuid/kgid where appropriateEric W. Biederman
Cc: Tyler Hicks <tyhicks@canonical.com> Cc: Dustin Kirkland <dustin.kirkland@gazzang.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert cramfs to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert befs to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert adfs to use kuid and kgid where appropriateEric W. Biederman
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert xenfs to use kuid and kgid where appropriateEric W. Biederman
Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert hugetlbfs to use kuid/kgid where appropriateEric W. Biederman
Note sysctl_hugetlb_shm_group can only be written in the root user in the initial user namespace, so we can assume sysctl_hugetlb_shm_group is in the initial user namespace. Cc: William Irwin <wli@holomorphy.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert devtmpfs to use GLOBAL_ROOT_UID and GLOBAL_ROOT_GIDEric W. Biederman
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert usb functionfs to use kuid/kgid where appropriateEric W. Biederman
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-21userns: Convert gadgetfs to use kuid and kgid where appropriateEric W. Biederman
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-20userns: Convert fat to use kuid/kgid where appropriateEric W. Biederman
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-18userns: Convert quotaEric W. Biederman
Now that the type changes are done, here is the final set of changes to make the quota code work when user namespaces are enabled. Small cleanups and fixes to make the code build when user namespaces are enabled. Cc: Jan Kara <jack@suse.cz> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2012-09-18userns: Convert quota netlink aka quota_send_warningEric W. Biederman
Modify quota_send_warning to take struct kqid instead a type and identifier pair. When sending netlink broadcasts always convert uids and quota identifiers into the intial user namespace. There is as yet no way to send a netlink broadcast message with different contents to receivers in different namespaces, so for the time being just map all of the identifiers into the initial user namespace which preserves the current behavior. Change the callers of quota_send_warning in gfs2, xfs and dquot to generate a struct kqid to pass to quota send warning. When all of the user namespaces convesions are complete a struct kqid values will be availbe without need for conversion, but a conversion is needed now to avoid needing to convert everything at once. Cc: Ben Myers <bpm@sgi.com> Cc: Alex Elder <elder@kernel.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Jan Kara <jack@suse.cz> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2012-09-18userns: Convert qutoactlEric W. Biederman
Update the quotactl user space interface to successfull compile with user namespaces support enabled and to hand off quota identifiers to lower layers of the kernel in struct kqid instead of type and qid pairs. The quota on function is not converted because while it takes a quota type and an id. The id is the on disk quota format to use, which is something completely different. The signature of two struct quotactl_ops methods were changed to take struct kqid argumetns get_dqblk and set_dqblk. The dquot, xfs, and ocfs2 implementations of get_dqblk and set_dqblk are minimally changed so that the code continues to work with the change in parameter type. This is the first in a series of changes to always store quota identifiers in the kernel in struct kqid and only use raw type and qid values when interacting with on disk structures or userspace. Always using struct kqid internally makes it hard to miss places that need conversion to or from the kernel internal values. Cc: Jan Kara <jack@suse.cz> Cc: Dave Chinner <david@fromorbit.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Ben Myers <bpm@sgi.com> Cc: Alex Elder <elder@kernel.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2012-09-18userns: Convert configfs to use kuid and kgid where appropriateEric W. Biederman
Cc: Joel Becker <jlbec@evilplan.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-18userns: Convert extN to support kuids and kgids in posix aclsEric W. Biederman
Convert ext2, ext3, and ext4 to fully support the posix acl changes, using e_uid e_gid instead e_id. Enabled building with posix acls enabled, all filesystems supporting user namespaces, now also support posix acls when user namespaces are enabled. Cc: Theodore Tso <tytso@mit.edu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Jan Kara <jack@suse.cz> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-18userns: Teach trace to use from_kuidEric W. Biederman
- When tracing capture the kuid. - When displaying the data to user space convert the kuid into the user namespace of the process that opened the report file. Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-18userns: Convert bsd process accounting to use kuid and kgid where appropriateEric W. Biederman
BSD process accounting conveniently passes the file the accounting records will be written into to do_acct_process. The file credentials captured the user namespace of the opener of the file. Use the file credentials to format the uid and the gid of the current process into the user namespace of the user that started the bsd process accounting. Cc: Pavel Emelyanov <xemul@openvz.org> Reviewed-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-18userns: Convert taskstats to handle the user and pid namespaces.Eric W. Biederman
- Explicitly limit exit task stat broadcast to the initial user and pid namespaces, as it is already limited to the initial network namespace. - For broadcast task stats explicitly generate all of the idenitiers in terms of the initial user namespace and the initial pid namespace. - For request stats report them in terms of the current user namespace and the current pid namespace. Netlink messages are delivered syncrhonously to the kernel allowing us to get the user namespace and the pid namespace from the current task. - Pass the namespaces for representing pids and uids and gids into bacct_add_task. Cc: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-18userns: Convert audit to work with user namespaces enabledEric W. Biederman
- Explicitly format uids gids in audit messges in the initial user namespace. This is safe because auditd is restrected to be in the initial user namespace. - Convert audit_sig_uid into a kuid_t. - Enable building the audit code and user namespaces at the same time. The net result is that the audit subsystem now uses kuid_t and kgid_t whenever possible making it almost impossible to confuse a raw uid_t with a kuid_t preventing bugs. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Eric Paris <eparis@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-13userns: net: Call key_alloc with GLOBAL_ROOT_UID, GLOBAL_ROOT_GID instead of ↵Eric W. Biederman
0, 0 In net/dns_resolver/dns_key.c and net/rxrpc/ar-key.c make them work with user namespaces enabled where key_alloc takes kuids and kgids. Pass GLOBAL_ROOT_UID and GLOBAL_ROOT_GID instead of bare 0's. Cc: Sage Weil <sage@inktank.com> Cc: ceph-devel@vger.kernel.org Cc: David Howells <dhowells@redhat.com> Cc: David Miller <davem@davemloft.net> Cc: linux-afs@lists.infradead.org Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-13userns: Convert security/keys to the new userns infrastructureEric W. Biederman
- Replace key_user ->user_ns equality checks with kuid_has_mapping checks. - Use from_kuid to generate key descriptions - Use kuid_t and kgid_t and the associated helpers instead of uid_t and gid_t - Avoid potential problems with file descriptor passing by displaying keys in the user namespace of the opener of key status proc files. Cc: linux-security-module@vger.kernel.org Cc: keyrings@linux-nfs.org Cc: David Howells <dhowells@redhat.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-13userns: Convert drm to use kuid and kgid and struct pid where appropriateEric W. Biederman
Blink Blink this had not been converted to use struct pid ages ago? - On drm open capture the openers kuid and struct pid. - On drm close release the kuid and struct pid - When reporting the uid and pid convert the kuid and struct pid into values in the appropriate namespace. Cc: dri-devel@lists.freedesktop.org Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-06userns: Convert ipc to use kuid and kgid where appropriateEric W. Biederman
- Store the ipc owner and creator with a kuid - Store the ipc group and the crators group with a kgid. - Add error handling to ipc_update_perms, allowing it to fail if the uids and gids can not be converted to kuids or kgids. - Modify the proc files to display the ipc creator and owner in the user namespace of the opener of the proc file. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-06userns: Convert process event connector to handle kuids and kgidsEric W. Biederman
- Only allow asking for events from the initial user and pid namespace, where we generate the events in. - Convert kuids and kgids into the initial user namespace to report them via the process event connector. Cc: David Miller <davem@davemloft.net> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-09-06userns: Convert debugfs to use kuid/kgid where appropriate.Eric W. Biederman
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-08-23userns: Make credential debugging user namespace safe.Eric W. Biederman
Cc: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-08-23userns: Enable building of pf_key sockets when user namespace support is ↵Eric W. Biederman
enabled. Enable building of pf_key sockets and user namespace support at the same time. This combination builds successfully so there is no reason to forbid it. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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