19 Jun, 2015
1 commit
-
While testing my netfilter changes I noticed several files where
recompiling unncessarily because they unncessarily included
netfilter.h.Signed-off-by: "Eric W. Biederman"
Signed-off-by: Pablo Neira Ayuso
11 May, 2015
1 commit
-
In preparation for changing how struct net is refcounted
on kernel sockets pass the knowledge that we are creating
a kernel socket from sock_create_kern through to sk_alloc.Signed-off-by: "Eric W. Biederman"
Signed-off-by: David S. Miller
03 Mar, 2015
2 commits
-
Now that there are no more users kill dev_rebuild_header and all of it's
implementations.This is long overdue.
Signed-off-by: "Eric W. Biederman"
Signed-off-by: David S. Miller -
After TIPC doesn't depend on iocb argument in its internal
implementations of sendmsg() and recvmsg() hooks defined in proto
structure, no any user is using iocb argument in them at all now.
Then we can drop the redundant iocb argument completely from kinds of
implementations of both sendmsg() and recvmsg() in the entire
networking stack.Cc: Christoph Hellwig
Suggested-by: Al Viro
Signed-off-by: Ying Xue
Signed-off-by: David S. Miller
24 Nov, 2014
1 commit
-
Signed-off-by: Al Viro
06 Nov, 2014
1 commit
-
This encapsulates all of the skb_copy_datagram_iovec() callers
with call argument signature "skb, offset, msghdr->msg_iov, length".When we move to iov_iters in the networking, the iov_iter object will
sit in the msghdr.Having a helper like this means there will be less places to touch
during that transformation.Based upon descriptions and patch from Al Viro.
Signed-off-by: David S. Miller
18 Oct, 2014
1 commit
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replace asm/uaccess.h by linux/uaccess.h
Signed-off-by: Fabian Frederick
Signed-off-by: David S. Miller
16 Jul, 2014
1 commit
-
Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert
all users to pass NET_NAME_UNKNOWN.Coccinelle patch:
@@
expression sizeof_priv, name, setup, txqs, rxqs, count;
@@(
-alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs)
+alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs)
|
-alloc_netdev_mq(sizeof_priv, name, setup, count)
+alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count)
|
-alloc_netdev(sizeof_priv, name, setup)
+alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup)
)v9: move comments here from the wrong commit
Signed-off-by: Tom Gundersen
Reviewed-by: David Herrmann
Signed-off-by: David S. Miller
12 Apr, 2014
1 commit
-
Several spots in the kernel perform a sequence like:
skb_queue_tail(&sk->s_receive_queue, skb);
sk->sk_data_ready(sk, skb->len);But at the moment we place the SKB onto the socket receive queue it
can be consumed and freed up. So this skb->len access is potentially
to freed up memory.Furthermore, the skb->len can be modified by the consumer so it is
possible that the value isn't accurate.And finally, no actual implementation of this callback actually uses
the length argument. And since nobody actually cared about it's
value, lots of call sites pass arbitrary values in such as '0' and
even '1'.So just remove the length argument from the callback, that way there
is no confusion whatsoever and all of these use-after-free cases get
fixed as a side effect.Based upon a patch by Eric Dumazet and his suggestion to audit this
issue tree-wide.Signed-off-by: David S. Miller
19 Jan, 2014
1 commit
-
This is a follow-up patch to f3d3342602f8bc ("net: rework recvmsg
handler msg_name and msg_namelen logic").DECLARE_SOCKADDR validates that the structure we use for writing the
name information to is not larger than the buffer which is reserved
for msg->msg_name (which is 128 bytes). Also use DECLARE_SOCKADDR
consistently in sendmsg code paths.Signed-off-by: Steffen Hurrle
Suggested-by: Hannes Frederic Sowa
Acked-by: Hannes Frederic Sowa
Signed-off-by: David S. Miller
21 Nov, 2013
1 commit
-
This patch now always passes msg->msg_namelen as 0. recvmsg handlers must
set msg_namelen to the proper size
Suggested-by: Eric Dumazet
Signed-off-by: Hannes Frederic Sowa
Signed-off-by: David S. Miller
13 Jun, 2013
1 commit
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Reduce the uses of this unnecessary typedef.
Done via perl script:
$ git grep --name-only -w ctl_table net | \
xargs perl -p -i -e '\
sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \
s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge'Reflow the modified lines that now exceed 80 columns.
Signed-off-by: Joe Perches
Signed-off-by: David S. Miller
29 May, 2013
1 commit
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So far, only net_device * could be passed along with netdevice notifier
event. This patch provides a possibility to pass custom structure
able to provide info that event listener needs to know.Signed-off-by: Jiri Pirko
v2->v3: fix typo on simeth
shortened dev_getter
shortened notifier_info struct name
v1->v2: fix notifier_call parameter in call_netdevice_notifier()
Signed-off-by: David S. Miller
25 Apr, 2013
1 commit
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The sockaddr_ax25 struct has a 3 byte hole between ->sax25_call and
->sax25_ndigis. I've added a memset to avoid leaking uninitialized
stack data to userspace.Signed-off-by: Dan Carpenter
Acked-by: Ralf Baechle
Signed-off-by: David S. Miller
09 Apr, 2013
1 commit
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sizeof() when applied to a pointer typed expression gives the size of the
pointer, not that of the pointed data.
Introduced by commit 3ce5ef(netrom: fix info leak via msg_name in nr_recvmsg)Signed-off-by: Wei Yongjun
Signed-off-by: David S. Miller
08 Apr, 2013
1 commit
-
In case msg_name is set the sockaddr info gets filled out, as
requested, but the code fails to initialize the padding bytes of
struct sockaddr_ax25 inserted by the compiler for alignment. Also
the sax25_ndigis member does not get assigned, leaking four more
bytes.Both issues lead to the fact that the code will leak uninitialized
kernel stack bytes in net/socket.c.Fix both issues by initializing the memory with memset(0).
Cc: Ralf Baechle
Signed-off-by: Mathias Krause
Signed-off-by: David S. Miller
28 Feb, 2013
1 commit
-
I'm not sure why, but the hlist for each entry iterators were conceived
list_for_each_entry(pos, head, member)
The hlist ones were greedy and wanted an extra parameter:
hlist_for_each_entry(tpos, pos, head, member)
Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.Besides the semantic patch, there was some manual work required:
- Fix up the actual hlist iterators in linux/list.h
- Fix up the declaration of other iterators based on the hlist ones.
- A very small amount of places were using the 'node' parameter, this
was modified to use 'obj->member' instead.
- Coccinelle didn't handle the hlist_for_each_entry_safe iterator
properly, so those had to be fixed up manually.The semantic patch which is mostly the work of Peter Senna Tschudin is here:
@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;type T;
expression a,c,d,e;
identifier b;
statement S;
@@-T b;
[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin
Acked-by: Paul E. McKenney
Signed-off-by: Sasha Levin
Cc: Wu Fengguang
Cc: Marcelo Tosatti
Cc: Gleb Natapov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
19 Feb, 2013
2 commits
-
proc_net_remove is only used to remove proc entries
that under /proc/net,it's not a general function for
removing proc entries of netns. if we want to remove
some proc entries which under /proc/net/stat/, we still
need to call remove_proc_entry.this patch use remove_proc_entry to replace proc_net_remove.
we can remove proc_net_remove after this patch.Signed-off-by: Gao feng
Signed-off-by: David S. Miller -
Right now, some modules such as bonding use proc_create
to create proc entries under /proc/net/, and other modules
such as ipv4 use proc_net_fops_create.It looks a little chaos.this patch changes all of
proc_net_fops_create to proc_create. we can remove
proc_net_fops_create after this patch.Signed-off-by: Gao feng
Signed-off-by: David S. Miller
22 Sep, 2012
1 commit
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Change return value from -EACCES to -EPERM when the permission check fails.
Signed-off-by: Zhao Hongjiang
Signed-off-by: David S. Miller
05 Sep, 2012
1 commit
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Check for an error from this and if so bail properly.
Signed-off-by: Alan Cox
Signed-off-by: David S. Miller
21 Apr, 2012
2 commits
-
This results in code with less boiler plate that is a bit easier
to read.Additionally stops us from using compatibility code in the sysctl
core, hastening the day when the compatibility code can be removed.Signed-off-by: Eric W. Biederman
Acked-by: Pavel Emelyanov
Signed-off-by: David S. Miller -
This makes it clearer which sysctls are relative to your current network
namespace.This makes it a little less error prone by not exposing sysctls for the
initial network namespace in other namespaces.This is the same way we handle all of our other network interfaces to
userspace and I can't honestly remember why we didn't do this for
sysctls right from the start.Signed-off-by: Eric W. Biederman
Acked-by: Pavel Emelyanov
Signed-off-by: David S. Miller
16 Apr, 2012
1 commit
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Use of "unsigned int" is preferred to bare "unsigned" in net tree.
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
29 Mar, 2012
1 commit
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Remove all #inclusions of asm/system.h preparatory to splitting and killing
it. Performed with the following command:perl -p -i -e 's!^#\s*include\s*.*\n!!' `grep -Irl '^#\s*include\s*' *`
Signed-off-by: David Howells
29 Dec, 2011
1 commit
-
Check setsockopt arguments to avoid overflows and return -EINVAL for
too large arguments.Signed-off-by: Xi Wang
Signed-off-by: David S. Miller
29 Nov, 2011
3 commits
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The Linux coding style wants the return statement on its own line.
Signed-off-by: Ralf Baechle
Signed-off-by: David S. Miller -
nr_route.ndigis is unsigned int so the nr_route.ndigis < 0 expression is
never true and can be dropped. Doing the nr_ax25_dev_get call later
allows the nr_route.ndigis test to bail out without having to dev_put.Signed-off-by: Ralf Baechle
Cc: Thomas Osterried
Signed-off-by: David S. Miller -
struct nr_route_struct's mnemonic permits a string of up to 7 bytes to be
used. If userland passes a not zero terminated string to the kernel adding
a node to the routing table might result in the kernel attempting to read
copy a too long string.Mnemonic is part of the NET/ROM routing protocol; NET/ROM routing table
updates only broadcast 6 bytes. The 7th byte in the mnemonic array exists
only as a \0 termination character for the kernel code's convenience.Fixed by rejecting mnemonic strings that have no terminating \0 in the first
7 characters. Do this test only NETROM_NODE to avoid breaking NETROM_NEIGH
where userland might passing an uninitialized mnemonic field.Initial patch by Dan Carpenter .
Signed-off-by: Ralf Baechle
Cc: Dan Carpenter
Cc: Walter Harms
Cc: Thomas Osterried
Acked-by: Dan Carpenter
Signed-off-by: David S. Miller
01 Nov, 2011
1 commit
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These files are non modular, but need to export symbols using
the macros now living in export.h -- call out the include so
that things won't break when we remove the implicit presence
of module.h from everywhere.Signed-off-by: Paul Gortmaker
02 Jul, 2011
1 commit
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Make the case labels the same indent as the switch.
git diff -w shows code on same line as case moved
to separate lines and a "/* Fallthrough */" comment
added where appropriate.Signed-off-by: Joe Perches
Signed-off-by: David S. Miller
14 Apr, 2011
1 commit
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Nobody alive seems to recall when they last were useful.
Signed-off-by: Ralf Baechle
Signed-off-by: David S. Miller
21 Apr, 2010
1 commit
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Define a new function to return the waitqueue of a "struct sock".
static inline wait_queue_head_t *sk_sleep(struct sock *sk)
{
return sk->sk_sleep;
}Change all read occurrences of sk_sleep by a call to this function.
Needed for a future RCU conversion. sk_sleep wont be a field directly
available.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
30 Mar, 2010
1 commit
-
…it slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
11 Feb, 2010
1 commit
-
Simplify seq_file code.
Signed-off-by: Li Zefan
Signed-off-by: David S. Miller
16 Jan, 2010
1 commit
-
Wrong ax25_cb refcounting in ax25_send_frame() and by its callers can
cause timer oopses (first reported with 2.6.29.6 kernel).Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=14905
Reported-by: Bernard Pidoux
Tested-by: Bernard Pidoux
Signed-off-by: Jarek Poplawski
Signed-off-by: David S. Miller
08 Dec, 2009
1 commit
-
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
mac80211: fix reorder buffer release
iwmc3200wifi: Enable wimax core through module parameter
iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
iwmc3200wifi: Coex table command does not expect a response
iwmc3200wifi: Update wiwi priority table
iwlwifi: driver version track kernel version
iwlwifi: indicate uCode type when fail dump error/event log
iwl3945: remove duplicated event logging code
b43: fix two warnings
ipw2100: fix rebooting hang with driver loaded
cfg80211: indent regulatory messages with spaces
iwmc3200wifi: fix NULL pointer dereference in pmkid update
mac80211: Fix TX status reporting for injected data frames
ath9k: enable 2GHz band only if the device supports it
airo: Fix integer overflow warning
rt2x00: Fix padding bug on L2PAD devices.
WE: Fix set events not propagated
b43legacy: avoid PPC fault during resume
b43: avoid PPC fault during resume
tcp: fix a timewait refcnt race
...Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
kernel/sysctl_check.c
net/ipv4/sysctl_net_ipv4.c
net/ipv6/addrconf.c
net/sctp/sysctl.c
26 Nov, 2009
1 commit
-
Generated with the following semantic patch
@@
struct net *n1;
struct net *n2;
@@
- n1 == n2
+ net_eq(n1, n2)@@
struct net *n1;
struct net *n2;
@@
- n1 != n2
+ !net_eq(n1, n2)applied over {include,net,drivers/net}.
Signed-off-by: Octavian Purdila
Signed-off-by: David S. Miller
12 Nov, 2009
1 commit
-
Now that sys_sysctl is a compatiblity wrapper around /proc/sys
all sysctl strategy routines, and all ctl_name and strategy
entries in the sysctl tables are unused, and can be
revmoed.In addition neigh_sysctl_register has been modified to no longer
take a strategy argument and it's callers have been modified not
to pass one.Cc: "David Miller"
Cc: Hideaki YOSHIFUJI
Cc: netdev@vger.kernel.org
Signed-off-by: Eric W. Biederman
06 Nov, 2009
1 commit
-
The generic __sock_create function has a kern argument which allows the
security system to make decisions based on if a socket is being created by
the kernel or by userspace. This patch passes that flag to the
net_proto_family specific create function, so it can do the same thing.Signed-off-by: Eric Paris
Acked-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller
