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2007-10-10[NET]: Dynamically allocate the loopback device, part 1.Daniel Lezcano1-1/+1
This patch replaces all occurences to the static variable loopback_dev to a pointer loopback_dev. That provides the mindless, trivial, uninteressting change part for the dynamic allocation for the loopback. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-By: Kirill Korotaev <dev@sw.ru> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NL80211]: add netlink interface to cfg80211Johannes Berg3-7/+109
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[TCP]: Minor coding style fixup.David S. Miller1-2/+4
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[TCP]: Avoid clearing sacktag hint in trivial situationsIlpo Järvinen1-1/+5
There's no reason to clear the sacktag skb hint when small part of the rexmit queue changes. Account changes (if any) instead when fragmenting/collapsing. RTO/FRTO do not touch SACKED_ACKED bits so no need to discard SACK tag hint at all. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[TCP]: clear_all_retrans_hints prefixed by tcp_Ilpo Järvinen1-2/+2
In addition, fix its function comment spacing. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
2007-10-10pppoe: endiannessAl Viro1-6/+6
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10arcnet endianness annotationsAl Viro2-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10[NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()Joe Perches3-9/+8
This is nicer than the MAC_FMT stuff. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SSB]: add Sonics Silicon Backplane bus supportMichael Buesch7-0/+1483
SSB is an SoC bus used in a number of embedded devices. The most well-known of these devices is probably the Linksys WRT54G, but there are others as well. The bus is also used internally on the BCM43xx and BCM44xx devices from Broadcom. This patch also includes support for SSB ID tables in modules, so that SSB drivers can be loaded automatically. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NETNS]: Cleanup list walking in setup_net and cleanup_netPavel Emelyanov1-0/+14
I proposed introducing a list_for_each_entry_continue_reverse macro to be used in setup_net() when unrolling the failed ->init callback. Here is the macro and some more cleanup in the setup_net() itself to remove one variable from the stack :) The same thing is for the cleanup_net() - the existing list_for_each_entry_reverse() is used. Minor, but the code looks nicer. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Add Tehuti network driver.Andy Gospodarek1-0/+5
[ Ported to napi_struct changes... -DaveM ] Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[IPG]: add IP1000A driver to kernel treeFrancois Romieu1-0/+2
Signed-off-by: Jesse Huang <jesse@icplus.com.tw> Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Tie ADD-IP and AUTH functionality as required by spec.Vlad Yasevich1-0/+1
ADD-IP spec requires AUTH. It is, in fact, dangerous without AUTH. So, disable ADD-IP functionality if the peer claims to support ADD-IP, but not AUTH. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: API updates to suport SCTP-AUTH extensions.Vlad Yasevich3-0/+110
Add SCTP-AUTH API. The API implemented here was agreed to between implementors at the 9th SCTP Interop. It will be documented in the next revision of the SCTP socket API spec. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Implement the receive and verification of AUTH chunkVlad Yasevich3-1/+12
This patch implements the receive path needed to process authenticated chunks. Add ability to process the AUTH chunk and handle edge cases for authenticated COOKIE-ECHO as well. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Enable the sending of the AUTH chunk.Vlad Yasevich2-0/+4
SCTP-AUTH, Section 6.2: Endpoints MUST send all requested chunks authenticated where this has been requested by the peer. The other chunks MAY be sent authenticated or not. If endpoint pair shared keys are used, one of them MUST be selected for authentication. To send chunks in an authenticated way, the sender MUST include these chunks after an AUTH chunk. This means that a sender MUST bundle chunks in order to authenticate them. If the endpoint has no endpoint pair shared key for the peer, it MUST use Shared Key Identifier 0 with an empty endpoint pair shared key. If there are multiple endpoint shared keys the sender selects one and uses the corresponding Shared Key Identifier Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Implete SCTP-AUTH parameter processingVlad Yasevich1-0/+1
Implement processing for the CHUNKS, RANDOM, and HMAC parameters and deal with how this parameters are effected by association restarts. In particular, during unexpeted INIT processing, we need to reply with parameters from the original INIT chunk. Also, after restart, we need to update the old association with new peer parameters and change the association shared keys. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Implement SCTP-AUTH internalsVlad Yasevich4-6/+227
This patch implements the internals operations of the AUTH, such as key computation and storage. It also adds necessary variables to the SCTP data structures. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: protocol definitions for SCTP-AUTH implementationVlad Yasevich1-1/+99
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[IPV4]: Add ICMPMsgStats MIB (RFC 4293)David L Stevens3-0/+15
Background: RFC 4293 deprecates existing individual, named ICMP type counters to be replaced with the ICMPMsgStatsTable. This table includes entries for both IPv4 and IPv6, and requires counting of all ICMP types, whether or not the machine implements the type. These patches "remove" (but not really) the existing counters, and replace them with the ICMPMsgStats tables for v4 and v6. It includes the named counters in the /proc places they were, but gets the values for them from the new tables. It also counts packets generated from raw socket output (e.g., OutEchoes, MLD queries, RA's from radvd, etc). Changes: 1) create icmpmsg_statistics mib 2) create icmpv6msg_statistics mib 3) modify existing counters to use these 4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types listed by number for easy SNMP parsing 5) modify /proc/net/snmp printing for "Icmp" to get the named data from new counters. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2]David L Stevens4-60/+41
Background: RFC 4293 deprecates existing individual, named ICMP type counters to be replaced with the ICMPMsgStatsTable. This table includes entries for both IPv4 and IPv6, and requires counting of all ICMP types, whether or not the machine implements the type. These patches "remove" (but not really) the existing counters, and replace them with the ICMPMsgStats tables for v4 and v6. It includes the named counters in the /proc places they were, but gets the values for them from the new tables. It also counts packets generated from raw socket output (e.g., OutEchoes, MLD queries, RA's from radvd, etc). Changes: 1) create icmpmsg_statistics mib 2) create icmpv6msg_statistics mib 3) modify existing counters to use these 4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types listed by number for easy SNMP parsing 5) modify /proc/net/snmp printing for "Icmp" to get the named data from new counters. [new to 2nd revision] 6) support per-interface ICMP stats 7) use common macro for per-device stat macros Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NETLINK]: Avoid pointer in netlink_run_queueHerbert Xu1-1/+1
I was looking at Patrick's fix to inet_diag and it occured to me that we're using a pointer argument to return values unnecessarily in netlink_run_queue. Changing it to return the value will allow the compiler to generate better code since the value won't have to be memory-backed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Implement the Supported Extensions ParameterVlad Yasevich2-0/+10
SCTP Supported Extenions parameter is specified in Section 4.2.7 of the ADD-IP draft (soon to be RFC). The parameter is encoded as: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Parameter Type = 0x8008 | Parameter Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | CHUNK TYPE 1 | CHUNK TYPE 2 | CHUNK TYPE 3 | CHUNK TYPE 4 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | CHUNK TYPE N | PAD | PAD | PAD | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ It contains a list of chunks that a particular SCTP extension uses. Current extensions supported are Partial Reliability (FWD-TSN) and ADD-IP (ASCONF and ASCONF-ACK). When implementing new extensions (AUTH, PKT-DROP, etc..), new chunks need to be added to this parameter. Parameter processing would be modified to negotiate support for these new features. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[IPV4/IPV6/DECNET]: Small cleanup for fib rules.Denis V. Lunev1-1/+1
This patch slightly cleanups FIB rules framework. rules_list as a pointer on struct fib_rules_ops is useless. It is always assigned with a static per/subsystem list in IPv4, IPv6 and DecNet. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Fix the prototype of call_netdevice_notifiers.Eric W. Biederman1-1/+1
This replaces the void * parameter with a struct net_device * which is what is actually required. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: migrate HARD_TX_LOCK to header fileJamal Hadi Salim1-2/+19
HARD_TX_LOCK micro is a nice aggregation that could be used in other spots. move it to netdevice.h Also makes sure the previously superflous cpu arguement is used. Thanks to DaveM for the suggestions. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET] drivers/net: statistics cleanup #1 -- save memory and shrink codeJeff Garzik3-3/+0
We now have struct net_device_stats embedded in struct net_device, and the default ->get_stats() hook does the obvious thing for us. Run through drivers/net/* and remove the driver-local storage of statistics, and driver-local ->get_stats() hook where applicable. This was just the low-hanging fruit in drivers/net; plenty more drivers remain to be updated. [ Resolved conflicts with napi_struct changes and fix sunqe build regression... -DaveM ] Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Nuke SET_MODULE_OWNER macro.Ralf Baechle1-1/+0
It's been a useless no-op for long enough in 2.6 so I figured it's time to remove it. The number of people that could object because they're maintaining unified 2.4 and 2.6 drivers is probably rather small. [ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[MAC80211]: remove TKIP mixing for hw accel againJohannes Berg1-9/+0
The TKIP mixing code was added for the benefit of Intel's ipw3945 chipset but that code ended up not using it. We have previously identified many problems with this code and it crystallized that library functions for mixing are likely to handle this in much more generality and might allow b43 to take advantage of hardware acceleration for TKIP. Due to these reasons, remove the TKIP mixing for hardware accelerated crypto operations. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Buesch <mb@bu3sch.de> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[MAC80211]: remove HW_KEY_IDX_INVALIDJohannes Berg1-9/+8
This patch makes the mac80211/driver interface rely only on the IEEE80211_TXCTL_DO_NOT_ENCRYPT flag to signal to the driver whether a frame should be encrypted or not, since mac80211 internally no longer relies on HW_KEY_IDX_INVALID either this removes it, changes the key index to be a u8 in all places and makes the full range of the value available to drivers. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[MAC80211]: some more documentationJohannes Berg1-43/+105
This patch formats some documentation in mac80211.h into kerneldoc and also adds some more explanations for hardware crypto. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[MAC80211]: remove set_key_idx callbackJohannes Berg1-13/+0
No existing drivers use this callback, hence there's no telling how it might be used. In fact, it is unlikely to be of much use as-is because the default key index isn't something that the driver can do much with without knowing which interface it was for etc. And if it needs the key index for the transmitted frame, it can get it by keeping a reference to the key_conf structure and looking it up by hw_key_idx. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[MAC80211]: rework hardware crypto flagsJohannes Berg1-34/+15
This patch reworks the various hardware crypto related flags to make them more local, i.e. put them with each key or each packet instead of into the hw struct. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[MAC80211]: remove turbo modesJohannes Berg1-5/+2
This patch removes all mention of the atheros turbo modes that can't possibly work properly anyway since in some places we don't check for them when we should. I have no idea what the iwlwifi drivers were doing with these but it can't possibly have been correct. Cc: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[RFKILL]: Add support for ultrawidebandIvo van Doorn2-0/+3
This patch will add support for UWB keys to rfkill, support for this has been requested by Inaky. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[RFKILL]: Remove IRDAIvo van Doorn1-5/+3
As Dmitry pointed out earlier, rfkill-input.c doesn't support irda because there are no users and we shouldn't add unrequired KEY_ defines. However, RFKILL_TYPE_IRDA was defined in the rfkill.h header file and would confuse people about whether it is implemented or not. This patch removes IRDA support completely, so it can be added whenever a driver wants the feature. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Fix race when opening a proc file while a network namespace is exiting.Eric W. Biederman2-4/+13
The problem: proc_net files remember which network namespace the are against but do not remember hold a reference count (as that would pin the network namespace). So we currently have a small window where the reference count on a network namespace may be incremented when opening a /proc file when it has already gone to zero. To fix this introduce maybe_get_net and get_proc_net. maybe_get_net increments the network namespace reference count only if it is greater then zero, ensuring we don't increment a reference count after it has gone to zero. get_proc_net handles all of the magic to go from a proc inode to the network namespace instance and call maybe_get_net on it. PROC_NET the old accessor is removed so that we don't get confused and use the wrong helper function. Then I fix up the callers to use get_proc_net and handle the case case where get_proc_net returns NULL. In that case I return -ENXIO because effectively the network namespace has already gone away so the files we are trying to access don't exist anymore. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NETNS]: Fix allnoconfig compilation error.Daniel Lezcano2-1/+8
When CONFIG_NET=no, init_net is unresolved because net_namespace.c is not compiled and the include pull init_net definition. This problem was very similar with the ipc namespace where the kernel can be compiled with SYSV ipc out. This patch fix that defining a macro which simply remove init_net initialization from nsproxy namespace aggregator. Compiled and booted on qemu-i386 with CONFIG_NET=no and CONFIG_NET=yes. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET_SCHED]: Making rate table lookups more flexible.Jesper Dangaard Brouer2-3/+5
This is done in order to, add support to changing the rate table to use the upper-boundry L2T (length to time) value. Currently we use the lower-boundry, which result in under-estimating the actual bandwidth usage. Extend the tc_ratespec struct, with two parameters: 1) "cell_align" that allow adjusting the alignment of the rate table. 2) "overhead" that allow adding a packet overhead before the lookup. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET_SCHED]: Cleanup L2T macros and handle oversized packetsJesper Dangaard Brouer1-0/+12
Change L2T (length to time) macros, in all rate based schedulers, to call a common function qdisc_l2t() that does the rate table lookup. This function handles if the packet size lookup is larger than the rate table, which often occurs with TSO enabled. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[SCTP]: Make sctp_addto_param() static.Adrian Bunk1-1/+0
sctp_addto_param() can become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NETNS]: Fix bad macro definition.Daniel Lezcano1-18/+17
The macro definition is bad. When calling next_net_device with parameter name "dev", the resulting code is: struct net_device *dev = dev and that leads to an unexpected behavior. Especially when llc_core is compiled in, the kernel panics at boot time. The patchset change macro definition with static inline functions as they were defined before. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NETLINK]: Introduce nested and byteorder flag to netlink attributeThomas Graf2-0/+23
This change allows the generic attribute interface to be used within the netfilter subsystem where this flag was initially introduced. The byte-order flag is yet unused, it's intended use is to allow automatic byte order convertions for all atomic types. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: netlink support for moving devices between network namespaces.Eric W. Biederman1-0/+1
The simplest thing to implement is moving network devices between namespaces. However with the same attribute IFLA_NET_NS_PID we can easily implement creating devices in the destination network namespace as well. However that is a little bit trickier so this patch sticks to what is simple and easy. A pid is used to identify a process that happens to be a member of the network namespace we want to move the network device to. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Implement network device movement between namespacesEric W. Biederman1-0/+3
This patch introduces NETIF_F_NETNS_LOCAL a flag to indicate a network device is local to a single network namespace and should never be moved. Useful for pseudo devices that we need an instance in each network namespace (like the loopback device) and for any device we find that cannot handle multiple network namespaces so we may trap them in the initial network namespace. This patch introduces the function dev_change_net_namespace a function used to move a network device from one network namespace to another. To the network device nothing special appears to happen, to the components of the network stack it appears as if the network device was unregistered in the network namespace it is in, and a new device was registered in the network namespace the device was moved to. This patch sets up a namespace device destructor that upon the exit of a network namespace moves all of the movable network devices to the initial network namespace so they are not lost. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make the device list and device lookups per namespace.Eric W. Biederman7-39/+55
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>
2007-10-10[NET]: Support multiple network namespaces with netlinkEric W. Biederman1-1/+5
Each netlink socket will live in exactly one network namespace, this includes the controlling kernel sockets. This patch updates all of the existing netlink protocols to only support the initial network namespace. Request by clients in other namespaces will get -ECONREFUSED. As they would if the kernel did not have the support for that netlink protocol compiled in. As each netlink protocol is updated to be multiple network namespace safe it can register multiple kernel sockets to acquire a presence in the rest of the network namespaces. The implementation in af_netlink is a simple filter implementation at hash table insertion and hash table look up time. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make socket creation namespace safe.Eric W. Biederman5-5/+7
This patch passes in the namespace a new socket should be created in and has the socket code do the appropriate reference counting. By virtue of this all socket create methods are touched. In addition the socket create methods are modified so that they will fail if you attempt to create a socket in a non-default network namespace. Failing if we attempt to create a socket outside of the default network namespace ensures that as we incrementally make the network stack network namespace aware we will not export functionality that someone has not audited and made certain is network namespace safe. Allowing us to partially enable network namespaces before all of the exotic protocols are supported. Any protocol layers I have missed will fail to compile because I now pass an extra parameter into the socket creation code. [ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make /proc/net per network namespaceEric W. Biederman2-25/+24
This patch makes /proc/net per network namespace. It modifies the global variables proc_net and proc_net_stat to be per network namespace. The proc_net file helpers are modified to take a network namespace argument, and all of their callers are fixed to pass &init_net for that argument. This ensures that all of the /proc/net files are only visible and usable in the initial network namespace until the code behind them has been updated to be handle multiple network namespaces. Making /proc/net per namespace is necessary as at least some files in /proc/net depend upon the set of network devices which is per network namespace, and even more files in /proc/net have contents that are relevant to a single network namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Add a network namespace parameter to struct sockEric W. Biederman2-0/+4
Sockets need to get a reference to their network namespace, or possibly a simple hold if someone registers on the network namespace notifier and will free the sockets when the namespace is going to be destroyed. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>