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* econet: remove ancient bug ridden protocolStephen Hemminger2012-05-18
| | | | | | | | | | | | | | More spring cleaning! The ancient Econet protocol should go. Most of the bug fixes in recent years have been fixing security vulnerabilities. The hardware hasn't been made since the 90s, it is only interesting as an archeological curiosity. For the truly curious, or insomniac, go read up on it. http://en.wikipedia.org/wiki/Econet Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sock: Introduce named constants for sk_reusePavel Emelyanov2012-04-21
| | | | | | | | | Name them in a "backward compatible" manner, i.e. reuse or not are still 1 and 0 respectively. The reuse value of 2 means that the socket with it will forcibly reuse everyone else's port. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Remove all #inclusions of asm/system.hDavid Howells2012-03-28
| | | | | | | | | 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*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
* net: Remove all uses of LL_ALLOCATED_SPACEHerbert Xu2011-11-18
| | | | | | | | | | | | | | | | | | net: Remove all uses of LL_ALLOCATED_SPACE The macro LL_ALLOCATED_SPACE was ill-conceived. It applies the alignment to the sum of needed_headroom and needed_tailroom. As the amount that is then reserved for head room is needed_headroom with alignment, this means that the tail room left may be too small. This patch replaces all uses of LL_ALLOCATED_SPACE with the macro LL_RESERVED_SPACE and direct reference to needed_tailroom. This also fixes the problem with needed_headroom changing between allocating the skb and reserving the head room. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* af_econet: Use current logging styles and neateningJoe Perches2011-07-03
| | | | | | | | | | | Use pr_fmt() without KBUILD_MODNAME to allow AUN and econet prefixes. Convert printks with KERN_DEBUG to pr_debug. Hoist assigns from if. 80 column wrapping. Move open braces to end of line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: Reduce switch/case indentJoe Perches2011-07-01
| | | | | | | | | | Make the case labels the same indent as the switch. Simplify a default case / return (unreached) Remove unnecessary break after return. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: Fix set-but-unused variable.David S. Miller2011-04-17
| | | | | | | | | | #if 0'd out code for IP handling in aun_data_available() has been commented out since the beginning, which makes the variable "ip" set but not used. Kill it off as well as the stub code. Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: 4 byte infoleak to the networkVasiliy Kulikov2011-03-18
| | | | | | | | | | | | | struct aunhdr has 4 padding bytes between 'pad' and 'handle' fields on x86_64. These bytes are not initialized in the variable 'ah' before sending 'ah' to the network. This leads to 4 bytes kernel stack infoleak. This bug was introduced before the git epoch. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Phil Blundell <philb@gnu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: remove compiler warningsEric Dumazet2011-01-27
| | | | | | | | | | net/econet/af_econet.c: In function ‘econet_sendmsg’: net/econet/af_econet.c:494: warning: label ‘error’ defined but not used net/econet/af_econet.c:268: warning: unused variable ‘sk’ Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Phil Blundell <philb@gnu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-12-17
|\ | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x.h drivers/net/wireless/iwlwifi/iwl-1000.c drivers/net/wireless/iwlwifi/iwl-6000.c drivers/net/wireless/iwlwifi/iwl-core.h drivers/vhost/vhost.c
| * econet: Fix crash in aun_incoming().David S. Miller2010-12-08
| | | | | | | | | | | | | | | | | | | | | | | | Unconditional use of skb->dev won't work here, try to fetch the econet device via skb_dst()->dev instead. Suggested by Eric Dumazet. Reported-by: Nelson Elhage <nelhage@ksplice.com> Tested-by: Nelson Elhage <nelhage@ksplice.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2010-12-08
|\| | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/ath/ath9k/ar9003_eeprom.c net/llc/af_llc.c
| * econet: Do the correct cleanup after an unprivileged SIOCSIFADDR.Nelson Elhage2010-12-08
| | | | | | | | | | | | | | | | We need to drop the mutex and do a dev_put, so set an error code and break like the other paths, instead of returning directly. Signed-off-by: Nelson Elhage <nelhage@ksplice.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * econet: fix CVE-2010-3848Phil Blundell2010-11-24
| | | | | | | | | | | | | | | | | | Don't declare variable sized array of iovecs on the stack since this could cause stack overflow if msg->msgiovlen is large. Instead, coalesce the user-supplied data into a new buffer and use a single iovec for it. Signed-off-by: Phil Blundell <philb@gnu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * econet: fix CVE-2010-3850Phil Blundell2010-11-24
| | | | | | | | | | | | | | Add missing check for capable(CAP_NET_ADMIN) in SIOCSIFADDR operation. Signed-off-by: Phil Blundell <philb@gnu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * econet: disallow NULL remote addr for sendmsg(), fixes CVE-2010-3849Phil Blundell2010-11-24
| | | | | | | | | | | | | | | | Later parts of econet_sendmsg() rely on saddr != NULL, so return early with EINVAL if NULL was passed otherwise an oops may occur. Signed-off-by: Phil Blundell <philb@gnu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Net: econet: Makefile: Remove deprecated kbuild goal definitionsTracey Dent2010-11-22
|/ | | | | | | | | Changed Makefile to use <modules>-y instead of <modules>-objs because -objs is deprecated and not mentioned in Documentation/kbuild/makefiles.txt. Signed-off-by: Tracey Dent <tdent48227@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: return operator cleanupEric Dumazet2010-09-23
| | | | | | | | | Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: kill unnecessary spin_lock_init()Akinobu Mita2010-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The spinlock aun_queue_lock is initialized statically. It is unnecessary to initialize by spin_lock_init() at module load time. This is detected by the semantic patch. // <smpl> @def@ declarer name DEFINE_SPINLOCK; identifier spinlock; @@ DEFINE_SPINLOCK(spinlock); @@ identifier def.spinlock; @@ - spin_lock_init(&spinlock); // </smpl> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Julia Lawall <julia@diku.dk> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: fix lockingEric Dumazet2010-06-11
| | | | | | | | | | | | | | econet lacks proper locking. It holds econet_lock only when inserting or deleting an entry in econet_sklist, not during lookups. - convert econet_lock from rwlock to spinlock - use econet_lock in ec_listening_socket() lookup - use appropriate sock_hold() / sock_put() to avoid corruptions. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit 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 allmodconfig 8. 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>
* net: use net_eq to compare netsOctavian Purdila2009-11-25
| | | | | | | | | | | | | | | | | | | | | | | 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 <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: pass kern to net_proto_family create functionEric Paris2009-11-06
| | | | | | | | | | | 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 <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: Fix redeclaration of symbol lenHagen Paul Pfeifer2009-10-07
| | | | | | | | Function argument len was redeclarated within the function. This patch fix the redeclaration of symbol 'len'. Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mark net_proto_ops as constStephen Hemminger2009-10-07
| | | | | | | All usages of structure net_proto_ops should be declared const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-08-12
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: arch/microblaze/include/asm/socket.h
| * econet: Fix econet_getname() leakEric Dumazet2009-08-06
| | | | | | | | | | | | | | econet_getname() can leak kernel memory to user. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | econet: use NET_RX_SUCCESS instead of magic number 0 for econet_rcv ↵Mark Smith2009-07-06
|/ | | | | | | successful return Signed-off-by: Mark Smith <markzzzsmith@yahoo.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sk_wmem_alloc has initial value of one, not zeroEric Dumazet2009-06-17
| | | | | | | | | | | | | | | | | | | | commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) changed initial sk_wmem_alloc value. Some protocols check sk_wmem_alloc value to determine if a timer must delay socket deallocation. We must take care of the sk_wmem_alloc value being one instead of zero when no write allocations are pending. Reported by Ingo Molnar, and full diagnostic from David Miller. This patch introduces three helpers to get read/write allocations and a followup patch will use these helpers to report correct write allocations to user. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: Use SKB queue and list helpers instead of doing it by-hand.David S. Miller2009-05-28
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert usage of packet_type to read_mostlyStephen Hemminger2009-03-10
| | | | | | | | Protocols that use packet_type can be __read_mostly section for better locality. Elminate any unnecessary initializations of NULL. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: replace uses of __constant_{endian}Harvey Harrison2009-02-01
| | | | | | | Base versions handle constant folding now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns: Use net_eq() to compare net-namespaces for optimization.YOSHIFUJI Hideaki2008-07-20
| | | | | | | | Without CONFIG_NET_NS, namespace is always &init_net. Compiler will be able to omit namespace comparisons with this patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* econet: Use sock_orphan() instead of open-coded (and buggy) variant.David S. Miller2008-06-17
| | | | | | | It doesn't grab the sk_callback_lock, it doesn't NULL out the sk->sk_sleep waitqueue pointer, etc. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Allow netdevices to specify needed head/tailroomJohannes Berg2008-05-12
| | | | | | | | | | This patch adds needed_headroom/needed_tailroom members to struct net_device and updates many places that allocate sbks to use them. Not all of them can be converted though, and I'm sure I missed some (I mostly grepped for LL_RESERVED_SPACE) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.YOSHIFUJI Hideaki2008-03-25
| | | | | | | | Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [NET]: Convert init_timer into setup_timerPavel Emelyanov2008-01-28
| | | | | | | | | | | | | Many-many code in the kernel initialized the timer->function and timer->data together with calling init_timer(timer). There is already a helper for this. Use it for networking code. The patch is HUGE, but makes the code 130 lines shorter (98 insertions(+), 228 deletions(-)). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Forget the zero_it argument of sk_alloc()Pavel Emelyanov2007-11-01
| | | | | | | | | | | | | | | Finally, the zero_it argument can be completely removed from the callers and from the function prototype. Besides, fix the checkpatch.pl warnings about using the assignments inside if-s. This patch is rather big, and it is a part of the previous one. I splitted it wishing to make the patches more readable. Hope this particular split helped. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Wrap netdevice hardware header creation.Stephen Hemminger2007-10-10
| | | | | | | | | | Add inline for common usage of hardware header creation, and fix bug in IPV6 mcast where the assumption about negative return is an errno. Negative return from hard_header means not enough space was available,(ie -N bytes). Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make the device list and device lookups per namespace.Eric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make device event notification network namespace safeEric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | Every user of the network device notifiers is either a protocol stack or a pseudo device. If a protocol stack that does not have support for multiple network namespaces receives an event for a device that is not in the initial network namespace it quite possibly can get confused and do the wrong thing. To avoid problems until all of the protocol stacks are converted this patch modifies all netdev event handlers to ignore events on devices that are not in the initial network namespace. As the rest of the code is made network namespace aware these checks can be removed. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
*