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commit 3c0a39896d10b796a509095a0f4b5004a412d114
Author: Dan Smith <danms@xxxxxxxxxx>
Date: Mon Aug 24 10:11:56 2009 -0700
Set the CHECKPOINTED flag on objects before calling checkpoint
This helps prevent infinite recursion where the checkpoint() operation on an
object could potentially result in another checkpoint() of itself.
UNIX sockets would easily encounter this when we call checkpoint on all
related sockets, which would in turn try to checkpoint us again.
Signed-off-by: Dan Smith <danms@xxxxxxxxxx>
commit b705d06585590fd1f0518f4448a814d161316da8
Author: Dan Smith <danms@xxxxxxxxxx>
Date: Mon Aug 24 11:19:54 2009 -0700
Remove struct timeval from socket header
This patch removes the 'struct timeval' from the socket header and replaces
it with a fixed-size type as suggested by Oren.
Signed-off-by: Dan Smith <danms@xxxxxxxxxx>
commit 9e3b35a9e0313ef72f996e13cbd7b97928e5e029
Author: Dan Smith <danms@xxxxxxxxxx>
Date: Mon Aug 24 10:28:04 2009 -0700
Save and restore UNIX socket peer credentials (v2)
This saves the uid/gid of the sk_peercred structure in the checkpoint
stream. On restart, it uses may_setuid() and may_setgid() to determine
if the uid/gid from the checkpoint stream may be used.
Changes in v3:
- Fix error path when may_setuid() or may_setgid() fail
Changes in v2:
- Adjust for may_setgid() change
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
Signed-off-by: Dan Smith <danms@xxxxxxxxxx>
commit 7c15ed72d7909ee8d0520dfdf9600415cf790a36
Author: Dan Smith <danms@xxxxxxxxxx>
Date: Mon Aug 24 10:28:03 2009 -0700
Expose may_setuid() in user.h and add may_setgid() (v2)
Make these helpers available to others.
Changes in v2:
- Avoid checking the groupinfo in ctx->realcred against the current in
may_setgid()
Cc: Serge Hallyn <serue@xxxxxxxxxx>
Signed-off-by: Dan Smith <danms@xxxxxxxxxx>
commit 00fee04912743c83e256dd6feb49ce23d13023fd
Author: Dan Smith <danms@xxxxxxxxxx>
Date: Mon Aug 24 11:54:07 2009 -0700
Set socket flags on restore using sock_setsockopt() where possible (v3)
Fail on the TIMESTAMPING_* flags for the moment, with a TODO in place to
handle them later.
Also remove other explicit flag checks because they're no longer copied
blindly into the socket object, so existing checks will be sufficient.
Changes in v3:
- Move socket flag restore procedures into some common functions and a
mapping list. While definitely nicer to look at, my diffstat shows it
as only saving a single line of code over the previous, while dropping
the ability to print symbolic flag names in the error messages.
Changes in v2:
- Avoid removing the sock->sk_socket check before sync'ing the socket.flags
- Rename sock_rst_flags() to sock_restore_flags()
- Rebase on top of Oren's cleanup patch
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
Signed-off-by: Dan Smith <danms@xxxxxxxxxx>
commit a463c9883362f9bcde298a24f13e271313fc5f8b
Author: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
Date: Wed Aug 19 12:46:54 2009 -0700
c/r: alloc_pid() should return -ENOMEM on failure
The clone_with_pids() patchset changed alloc_pid() to return an error
code in the pointer. alloc_pid() should then return -ENOMEM rather than
NULL when memory allocations fails.
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
checkpoint/objhash.c | 3 +-
include/linux/checkpoint_hdr.h | 7 ++-
include/linux/user.h | 9 +++
kernel/pid.c | 4 +-
kernel/user.c | 13 ++++-
net/checkpoint.c | 134 ++++++++++++++++++++++++++++++++++++----
net/unix/checkpoint.c | 30 +++++----
7 files changed, 168 insertions(+), 32 deletions(-)
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