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* [IPV6]: make the protocol initialization to return an error codeDaniel Lezcano2008-01-288-65/+168
| | | | | | | | | | | | | This patchset makes the different protocols to return an error code, so the af_inet6 module can check the initialization was correct or not. The raw6 was taken into account to be consistent with the rest of the protocols, but the registration is at the same place. Because the raw6 has its own init function, the proto and the ops structure can be moved inside the raw6.c file. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: make inet6_register_protosw to return an error codeDaniel Lezcano2008-01-282-5/+8
| | | | | | | | | This patch makes the inet6_register_protosw to return an error code. The different protocols can be aware the registration was successful or not and can pass the error to the initial caller, af_inet6. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: make frag to return an error at initializationDaniel Lezcano2008-01-283-6/+21
| | | | | | | | This patch makes the frag_init to return an error code, so the af_inet6 module can handle the error. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: make extended headers to return an error at initializationDaniel Lezcano2008-01-283-31/+48
| | | | | | | | | | This patch factorize the code for the differents init functions for rthdr, nodata, destopt in a single function exthdrs_init. This function returns an error so the af_inet6 module can check correctly the initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: make flowlabel to return an errorDaniel Lezcano2008-01-283-9/+28
| | | | | | | | | | This patch makes the flowlab subsystem to return an error code and makes some cleanup with procfs ifdefs. The af_inet6 will use the flowlabel init return code to check the initialization was correct. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Cleanup sysctl manipulations in devinet.cPavel Emelyanov2008-01-281-30/+29Star
| | | | | | | | | | | | | | | | | This includes: * moving neigh_sysctl_(un)register calls inside devinet_sysctl_(un)register ones, as they are always called in pairs; * making __devinet_sysctl_unregister() to unregister the ipv4_devconf struct, while original devinet_sysctl_unregister() works with the in_device to handle both - devconf and neigh sysctls; * make stubs for CONFIG_SYSCTL=n case to get rid of in-code ifdefs. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Cleanup IN_DEV_MFORWARD macroPavel Emelyanov2008-01-281-3/+1Star
| | | | | | | This is essentially IN_DEV_ANDCONF with proper arguments. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET]: Use BUILD_BUG_ON in inet_timewait_sock.c checksPavel Emelyanov2008-01-281-4/+2Star
| | | | | | | | Make the INET_TWDR_TWKILL_SLOTS vs sizeof(twdr->thread_slots) check nicer. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Use BUILD_BUG_ON for tcp_skb_cb size checkingPavel Emelyanov2008-01-281-4/+1Star
| | | | | | | | | The sizeof(struct tcp_skb_cb) should not be less than the sizeof(skb->cb). This is checked in net/ipv4/tcp.c, but this check can be made more gracefully. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: kzalloc() conversionEric Dumazet2008-01-281-7/+6Star
| | | | | | | | nl_pid_hash_alloc() is renamed to nl_pid_hash_zalloc(). It is now returning zeroed memory to its callers. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: dst_ifdown() cleanupEric Dumazet2008-01-281-1/+1
| | | | | | | | | This cleanup shrinks size of net/core/dst.o on i386 from 1299 to 1289 bytes. (This is because dev_hold()/dev_put() are doing atomic_inc()/atomic_dec() and force compiler to re-evaluate memory contents.) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPSEC]: Add xfrm_input_state helperHerbert Xu2008-01-282-1/+6
| | | | | | | | | | This patch adds the xfrm_input_state helper function which returns the current xfrm state being processed on the input path given an sk_buff. This is currently only used by xfrm_input but will be used by ESP upon asynchronous resumption. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CCID3]: HC-receiver should not insert timestamps as HC-sender doesn't uses itGerrit Renker2008-01-281-2/+1Star
| | | | | | Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: The function tfrc_rx_hist_entry_delete() is not used anymoreGerrit Renker2008-01-281-5/+0Star
| | | | | | Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: Move comment.Gerrit Renker2008-01-281-5/+5
| | | | | | | | | Moved up the comment "Receiver routines" above the first occurrence of RX history routines. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove unused "mibalign" argument for snmp_mib_init().YOSHIFUJI Hideaki2008-01-284-31/+20Star
| | | | | | | | With fixes from Arnaldo Carvalho de Melo. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: last default route is a fib table propertyDenis V. Lunev2008-01-283-17/+18
| | | | | | 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>
* [IPV4]: Unify assignment of fi to fib_resultDenis V. Lunev2008-01-283-30/+18Star
| | | | | | 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>
* [IPV4]: no need pass pointer to a default into fib_detect_deathDenis V. Lunev2008-01-284-8/+8
| | | | | | | | ipv4: no need pass pointer to a default into fib_detect_death 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>
* [IPV6]: route6 remove ifdef for fib_rulesDaniel Lezcano2008-01-282-7/+12
| | | | | | | | | | The patch defines the usual static inline functions when the code is disabled for fib6_rules. That's allow to remove some ifdef in route.c file and make the code a little more clear. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: remove ifdef in route6 for xfrm6Daniel Lezcano2008-01-282-9/+14
| | | | | | | | | | The following patch create the usual static inline functions to disable the xfrm6_init and xfrm6_fini function when XFRM is off. That's allow to remove some ifdef and make the code a little more clear. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: create route6 proc init-fini functionsDaniel Lezcano2008-01-281-18/+40
| | | | | | | | | | Make the proc creation/destruction to be a separate function. That allows to remove the #ifdef CONFIG_PROC_FS in the init/fini function and make them more readable. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] sysctl: make sysctl_somaxconn per-namespacePavel Emelyanov2008-01-284-6/+8
| | | | | | | | | | | | Just move the variable on the struct net and adjust its usage. Others sysctls from sys.net.core table are more difficult to virtualize (i.e. make them per-namespace), but I'll look at them as well a bit later. Signed-off-by: Pavel Emelyanov <xemul@oenvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] sysctl: prepare core tables to point to netns variablesPavel Emelyanov2008-01-281-2/+7
| | | | | | | | | | | | | | | | Some of ctl variables are going to be on the struct net. Here's the way to adjust the ->data pointer on the ctl_table-s to point on the right variable. Since some pointers still point on the global variables, I keep turning the write bits off on such tables. This looks to become a common procedure for net sysctls, so later parts of this code may migrate to some more generic place. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] sysctl: make the sys.net.core sysctls per-namespacePavel Emelyanov2008-01-282-5/+48
| | | | | | | | | | | | | | | | | Making them per-namespace is required for the following two reasons: First, some ctl values have a per-namespace meaning. Second, making them writable from the sub-namespace is an isolation hole. So I introduce the pernet operations to create these tables. For init_net I use the existing statically declared tables, for sub-namespace they are duplicated and the write bits are removed from the mode. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SNMP]: Remove unused devconf macros.Pavel Emelyanov2008-01-282-10/+0Star
| | | | | | | | The SNMP_INC_STATS_OFFSET_BH is used only by ICMP6_INC_STATS_OFFSET_BH. The ICMP6_INC_STATS_OFFSET_BH is unused. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IUCV]: use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng2008-01-281-2/+2
| | | | | | | | these three list_head are all local variables, but can also use LIST_HEAD. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [XFRM] net/xfrm/xfrm_state.c: use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng2008-01-281-1/+1
| | | | | | | | | single list_head variable initialized with LIST_HEAD_INIT could almost always can be replaced with LIST_HEAD declaration, this shrinks the code and looks better. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [X25]: use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng2008-01-283-3/+3
| | | | | | | | | single list_head variable initialized with LIST_HEAD_INIT could almost always can be replaced with LIST_HEAD declaration, this shrinks the code and looks better. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [LAPB] net/lapb/lapb_iface.c: use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng2008-01-281-1/+1
| | | | | | | | | single list_head variable initialized with LIST_HEAD_INIT could almost always can be replaced with LIST_HEAD declaration, this shrinks the code and looks better. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4] net/ipv4/cipso_ipv4.c: use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng2008-01-281-1/+1
| | | | | | | | | single list_head variable initialized with LIST_HEAD_INIT could almost always can be replaced with LIST_HEAD declaration, this shrinks the code and looks better. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] net/core/dev.c: use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng2008-01-281-1/+1
| | | | | | | | | single list_head variable initialized with LIST_HEAD_INIT could almost always can be replaced with LIST_HEAD declaration, this shrinks the code and looks better. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Move trie_local and trie_main into the proc iterator.Eric W. Biederman2008-01-281-13/+34
| | | | | | | | | | | | We only use these variables when displaying the trie in proc so place them into the iterator to make this explicit. We should probably do something smarter to handle the CONFIG_IP_MULTIPLE_TABLES case but at least this makes it clear that the silliness is limited to the display in /proc. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Remove ip_fib_local_table and ip_fib_main_table defines.Eric W. Biederman2008-01-282-5/+3Star
| | | | | | | | | | There are only 2 users and it doesn't hurt to call fib_get_table instead, and it makes it easier to make the fib network namespace aware. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6] route6/fib6: Don't panic a kmem_cache_create.Daniel Lezcano2008-01-282-2/+8
| | | | | | | | | | | | | | If the kmem_cache_creation fails, the kernel will panic. It is acceptable if the system is booting, but if the ipv6 protocol is compiled as a module and it is loaded after the system has booted, do we want to panic instead of just failing to initialize the protocol ? The init function is now returning an error and this one is checked for protocol initialization. So the ipv6 protocol will safely fails. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Make af_inet6 to check ip6_route_init return value.Daniel Lezcano2008-01-281-1/+5
| | | | | | | | | | | | | The af_inet6 initialization function does not check the return code of the route initilization, so if something goes wrong, the protocol initialization will continue anyway. This patch takes into account the modification made in the different route's initialization subroutines to check the return value and to make the protocol initialization to fail. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Make ip6_route_init to return an error code.Daniel Lezcano2008-01-282-12/+54
| | | | | | | | | | | | | | | The route initialization function does not return any value to notify if the initialization is successful or not. This patch checks all calls made for the initilization in order to return a value for the caller. Unfortunately, proc_net_fops_create will return a NULL pointer if CONFIG_PROC_FS is off, so we can not check the return code without an ifdef CONFIG_PROC_FS block in the ip6_route_init function. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Make fib6_rules_init to return an error code.Daniel Lezcano2008-01-284-6/+21
| | | | | | | | | | When the fib_rules initialization finished, no return code is provided so there is no way to know, for the caller, if the initialization has been successful or has failed. This patch fix that. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Make xfrm6_init to return an error code.Daniel Lezcano2008-01-283-9/+21
| | | | | | | | | | | The xfrm initialization function does not return any error code, so if there is an error, the caller can not be advise of that. This patch checks the return code of the different called functions in order to return a successful or failed initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Make fib6_init to return an error code.Daniel Lezcano2008-01-282-4/+12
| | | | | | | | | | If there is an error in the initialization function, nothing is followed up to the caller. So I add a return value to be set for the init function. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Multiple namespaces in the all dst_ifdown routines.Denis V. Lunev2008-01-286-9/+15
| | | | | | | Move dst entries to a namespace loopback to catch refcounting leaks. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: New rx history codeArnaldo Carvalho de Melo2008-01-285-355/+327Star
| | | | | | | | | | | | | | | | | | | | | | | | | | Credit here goes to Gerrit Renker, that provided the initial implementation for this new codebase. I modified it just to try to make it closer to the existing API, renaming some functions, add namespacing and fix one bug where the tfrc_rx_hist_alloc was not freeing the allocated ring entries on the error path. Original changeset comment from Gerrit: ----------- This provides a new, self-contained and generic RX history service for TFRC based protocols. Details: * new data structure, initialisation and cleanup routines; * allocation of dccp_rx_hist entries local to packet_history.c, as a service exported by the dccp_tfrc_lib module. * interface to automatically track highest-received seqno; * receiver-based RTT estimation (needed for instance by RFC 3448, 6.3.1); * a generic function to test for `data packets' as per RFC 4340, sec. 7.7. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CCID3]: The receiver of a half-connection does not set window counter valuesGerrit Renker2008-01-281-1/+0Star
| | | | | | | | | Only the sender sets window counters [RFC 4342, sections 5 and 8.1]. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: Rename dccp_rx_ to tfrc_rx_Arnaldo Carvalho de Melo2008-01-284-92/+92
| | | | | | | | This is in preparation for merging the new rx history code written by Gerrit Renker. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: Make the rx history slab be globalArnaldo Carvalho de Melo2008-01-283-113/+60Star
| | | | | | | | This is in preparation for merging the new rx history code written by Gerrit Renker. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: Rename tfrc_tx_hist to tfrc_tx_hist_slab, for consistencyArnaldo Carvalho de Melo2008-01-281-10/+10
| | | | | | Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [DCCP]: Introduce generic function to test for `data packets'Gerrit Renker2008-01-281-0/+12
| | | | | | | | | as per RFC 4340, sec. 7.7. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TFRC]: Provide central source file and debug facilityGerrit Renker2008-01-286-35/+75
| | | | | | | | | | | | | | | | This patch changes the tfrc_lib module in the following manner: (1) a dedicated tfrc source file to call the packet history & loss interval init/exit functions. (2) a dedicated tfrc_pr_debug macro with toggle switch `tfrc_debug'. Commiter note: renamed tfrc_module.c to tfrc.c, and made CONFIG_IP_DCCP_CCID3 select IP_DCCP_TFRC_LIB. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ARP]: Consolidate some code in arp_req_set/delete_publcPavel Emelyanov2008-01-281-22/+19Star
| | | | | | | | The PROXY_ARP is set on devconfigs in a similar way in both calls. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ARP]: Minus one level of ndentation in arp_req_deletePavel Emelyanov2008-01-281-20/+27
| | | | | | | The same cleanup for deletion requests. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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