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* ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return valueHannes Frederic Sowa2012-11-261-0/+1
| | | | | | | | | [ Upstream commit d4596bad2a713fcd0def492b1960e6d899d5baa8 ] Cc: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ipv6: Fix ipv6_getsockopt for IPV6_2292PKTOPTIONSDaniel Baluta2011-10-031-4/+5
| | | | | | | | | | | | | | | | [ Upstream commit 98e77438aed3cd3343cbb86825127b1d9d2bea33 ] IPV6_2292PKTOPTIONS is broken for 32-bit applications running in COMPAT mode on 64-bit kernels. The same problem was fixed for IPv4 with the patch: ipv4: Fix ip_getsockopt for IP_PKTOPTIONS, commit dd23198e58cd35259dd09e8892bbdb90f1d57748 Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ipv6: Convert to use flowi6 where applicable.David S. Miller2011-03-121-5/+5
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Put flowi_* prefix on AF independent members of struct flowiDavid S. Miller2011-03-121-2/+2
| | | | | | | | | | I intend to turn struct flowi into a union of AF specific flowi structs. There will be a common structure that each variant includes first, much like struct sock_common. This is the first step to move in that direction. Signed-off-by: David S. Miller <davem@davemloft.net>
* tproxy: Add missing CAP_NET_ADMIN check to ipv6 sideBalazs Scheidler2010-10-241-0/+4
| | | | | | | | | | | | IP_TRANSPARENT requires root (more precisely CAP_NET_ADMIN privielges) for IPV6. However as I see right now this check was missed from the IPv6 implementation. Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* tproxy: added tproxy sockopt interface in the IPV6 layerBalazs Scheidler2010-10-211-0/+23
| | | | | | | | | Support for IPV6_RECVORIGDSTADDR sockopt for UDP sockets were contributed by Harry Mason. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
* ipv6: remove ipv6_statisticsEric Dumazet2010-06-251-2/+0
| | | | | | | | | | | | | | commit 9261e5370112 (ipv6: making ip and icmp statistics per/namespace) forgot to remove ipv6_statistics variable. commit bc417d99bf27 (ipv6: remove stale MIB definitions) took care of icmpv6_statistics & icmpv6msg_statistics Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denis V. Lunev <den@openvz.org> CC: Alexey Dobriyan <adobriyan@gmail.com> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* IPv6: Add dontfrag argument to relevant functionsBrian Haley2010-04-231-1/+2
| | | | | | | | | Add dontfrag argument to relevant functions for IPV6_DONTFRAG support, as well as allowing the value to be passed-in via ancillary cmsg data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* IPv6: data structure changes for new socket optionsBrian Haley2010-04-231-0/+46
| | | | | | | | | | Add underlying data structure changes and basic setsockopt() and getsockopt() support for IPV6_RECVPATHMTU, IPV6_PATHMTU, and IPV6_DONTFRAG. IPV6_PATHMTU is actually fully functional at this point. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* IPv6: Generic TTL Security Mechanism (final version)Stephen Hemminger2010-04-221-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds IPv6 support for RFC5082 Generalized TTL Security Mechanism. Not to users of mapped address; the IPV6 and IPV4 socket options are seperate. The server does have to deal with both IPv4 and IPv6 socket options and the client has to handle the different for each family. On client: int ttl = 255; getaddrinfo(argv[1], argv[2], &hint, &result); for (rp = result; rp != NULL; rp = rp->ai_next) { s = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); if (s < 0) continue; if (rp->ai_family == AF_INET) { setsockopt(s, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl)); } else if (rp->ai_family == AF_INET6) { setsockopt(s, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &ttl, sizeof(ttl))) } if (connect(s, rp->ai_addr, rp->ai_addrlen) == 0) { ... On server: int minttl = 255 - maxhops; getaddrinfo(NULL, port, &hints, &result); for (rp = result; rp != NULL; rp = rp->ai_next) { s = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); if (s < 0) continue; if (rp->ai_family == AF_INET6) setsockopt(s, IPPROTO_IPV6, IPV6_MINHOPCOUNT, &minttl, sizeof(minttl)); setsockopt(s, IPPROTO_IP, IP_MINTTL, &minttl, sizeof(minttl)); if (bind(s, rp->ai_addr, rp->ai_addrlen) == 0) break ... Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sk_dst_cache RCUificationEric Dumazet2010-04-131-12/+13
| | | | | | | | | | | | | | | | | | | | | | | With latest CONFIG_PROVE_RCU stuff, I felt more comfortable to make this work. sk->sk_dst_cache is currently protected by a rwlock (sk_dst_lock) This rwlock is readlocked for a very small amount of time, and dst entries are already freed after RCU grace period. This calls for RCU again :) This patch converts sk_dst_lock to a spinlock, and use RCU for readers. __sk_dst_get() is supposed to be called with rcu_read_lock() or if socket locked by user, so use appropriate rcu_dereference_check() condition (rcu_read_lock_held() || sock_owned_by_user(sk)) This patch avoids two atomic ops per tx packet on UDP connected sockets, for example, and permits sk_dst_lock to be much less dirtied. 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 Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Merge branch 'master' of ↵David S. Miller2009-10-271-1/+5
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/sh_eth.c
| * net: Fix IP_MULTICAST_IFEric Dumazet2009-10-191-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipv4/ipv6 setsockopt(IP_MULTICAST_IF) have dubious __dev_get_by_index() calls. This function should be called only with RTNL or dev_base_lock held, or reader could see a corrupt hash chain and eventually enter an endless loop. Fix is to call dev_get_by_index()/dev_put(). If this happens to be performance critical, we could define a new dev_exist_by_index() function to avoid touching dev refcount. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | IP: CleanupsJohn Dykstra2009-10-191-1/+1
| | | | | | | | | | | | | | | | | | | | Use symbols instead of magic constants while checking PMTU discovery setsockopt. Remove redundant test in ip_rt_frag_needed() (done by caller). Signed-off-by: John Dykstra <john.dykstra1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | inet: rename some inet_sock fieldsEric Dumazet2009-10-181-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Use sk_mark for IPv6 routing lookupsBrian Haley2009-10-071-0/+1
|/ | | | | | | | | | | | | | | | Atis Elsts wrote: > Not sure if there is need to fill the mark from skb in tunnel xmit functions. In any case, it's not done for GRE or IPIP tunnels at the moment. Ok, I'll just drop that part, I'm not sure what should be done in this case. > Also, in this patch you are doing that for SIT (v6-in-v4) tunnels only, and not doing it for v4-in-v6 or v6-in-v6 tunnels. Any reason for that? I just sent that patch out too quickly, here's a better one with the updates. Add support for IPv6 route lookups using sk_mark. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Make setsockopt() optlen be unsigned.David S. Miller2009-09-301-3/+3
| | | | | | | | | | | | This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
* inet6: Set default traffic classGerrit Renker2009-08-131-0/+3
| | | | | | | | | | | | | | | | | | | | | | This patch addresses: * assigning -1 to np->tclass as it is currently done is not very meaningful, since it turns into 0xff; * RFC 3542, 6.5 allows -1 for clearing the sticky IPV6_TCLASS option and specifies -1 to mean "use kernel default": - RFC 2460, 7. requires that the default traffic class must be zero for all 8 bits, - this is consistent with RFC 2474, 4.1 which recommends a default PHB of 0, in combination with a value of the ECN field of "non-ECT" (RFC 3168, 5.). This patch changes the meaning of -1 from assigning 255 to mean the RFC 2460 default, which at the same time allows to satisfy clearing the sticky TCLASS option as per RFC 3542, 6.5. (When passing -1 as ancillary data, the fallback remains np->tclass, which has either been set via socket options, or contains the default value.) Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet6: Conversion from u8 to intGerrit Renker2009-08-131-2/+0
| | | | | | | | | This replaces assignments of the type "int on LHS" = "u8 on RHS" with simpler code. The LHS can express all of the unsigned right hand side values, hence the assigned value can not be negative. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6:remove useless checkYang Hongyang2009-04-141-4/+0
| | | | | | | | | | | After switch (rthdr->type) {...},the check below is completely useless.Because: if the type is 2,then hdrlen must be 2 and segments_left must be 1,clearly the check is redundant;if the type is not 2,then goto sticky_done,the check is useless too. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Remove some pointless conditionals before kfree_skb()Wei Yongjun2009-02-241-2/+1
| | | | | | | | | | | | | | | | | | | Remove some pointless conditionals before kfree_skb(). The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression E; @@ - if (E) - kfree_skb(E); + kfree_skb(E); // </smpl> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: IPV6_PKTINFO relied userspace providing correct lengthIlpo Järvinen2009-01-041-1/+1
| | | | | | Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Reported-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: fix the return interface index when get it while no message is receivedYang Hongyang2008-12-161-4/+8
| | | | | | | | | | | | | | | | | | When get receiving interface index while no message is received, the the value seted with setsockopt() should be returned. RFC 3542: Issuing getsockopt() for the above options will return the sticky option value i.e., the value set with setsockopt(). If no sticky option value has been set getsockopt() will return the following values: - For the IPV6_PKTINFO option, it will return an in6_pktinfo structure with ipi6_addr being in6addr_any and ipi6_ifindex being zero. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Add IPV6_PKTINFO sticky option support to setsockopt()Yang Hongyang2008-12-161-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are three reasons for me to add this support: 1.When no interface is specified in an IPV6_PKTINFO ancillary data item, the interface specified in an IPV6_PKTINFO sticky optionis is used. RFC3542: 6.7. Summary of Outgoing Interface Selection This document and [RFC-3493] specify various methods that affect the selection of the packet's outgoing interface. This subsection summarizes the ordering among those in order to ensure deterministic behavior. For a given outgoing packet on a given socket, the outgoing interface is determined in the following order: 1. if an interface is specified in an IPV6_PKTINFO ancillary data item, the interface is used. 2. otherwise, if an interface is specified in an IPV6_PKTINFO sticky option, the interface is used. 2.When no IPV6_PKTINFO ancillary data is received,getsockopt() should return the sticky option value which set with setsockopt(). RFC 3542: Issuing getsockopt() for the above options will return the sticky option value i.e., the value set with setsockopt(). If no sticky option value has been set getsockopt() will return the following values: 3.Make the setsockopt implementation POSIX compliant. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: routing header fixesBrian Haley2008-11-121-0/+5
| | | | | | | | | | | | | | | This patch fixes two bugs: 1. setsockopt() of anything but a Type 2 routing header should return EINVAL instead of EPERM. Noticed by Shan Wei (shanwei@cn.fujitsu.com). 2. setsockopt()/sendmsg() of a Type 2 routing header with invalid length or segments should return EINVAL. These values are statically fixed in RFC 3775, unlike the variable Type 0 was. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Fix the return interface index when get it while no message is received.Yang Hongyang2008-08-171-2/+2
| | | | | | | | | | | | | | | | | | When get receiving interface index while no message is received, the bounded device's index of the socket should be returned. RFC 3542: Issuing getsockopt() for the above options will return the sticky option value i.e., the value set with setsockopt(). If no sticky option value has been set getsockopt() will return the following values: - For the IPV6_PKTINFO option, it will return an in6_pktinfo structure with ipi6_addr being in6addr_any and ipi6_ifindex being zero. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Fix the return value of Set Hop-by-Hop options header with NULL data ↵Yang Hongyang2008-08-031-0/+2
| | | | | | | | | | | | | | pointer When Set Hop-by-Hop options header with NULL data pointer and optlen is not zero use setsockopt(), the kernel successfully return 0 instead of return error EINVAL or EFAULT. This patch fix the problem. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6 netns: Make several "global" sysctl variables namespace aware.YOSHIFUJI Hideaki2008-07-191-1/+1
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: remove unused parameter from ip6_ra_controlDenis V. Lunev2008-07-191-5/+2
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2008-06-281-4/+7
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl4965-base.c
| * ipv6: Remove options header when setsockopt's optlen is 0Shan Wei2008-06-191-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | Remove the sticky Hop-by-Hop options header by calling setsockopt() for IPV6_HOPOPTS with a zero option length, per RFC3542. Routing header and Destination options header does the same as Hop-by-Hop options header. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2008-06-131-4/+8
|\ \ | |/ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smc911x.c
| * ipv6: Fail with appropriate error code when setting not-applicable sockopt.YOSHIFUJI Hideaki2008-06-121-4/+4
| | | | | | | | | | | | | | | | IPV6_MULTICAST_HOPS, for example, is not valid for stream sockets. Since they are virtually unavailable for stream sockets, we should return ENOPROTOOPT instead of EINVAL. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
| * ipv6: Check IPV6_MULTICAST_LOOP option value.YOSHIFUJI Hideaki2008-06-121-0/+2
| | | | | | | | | | | | | | | | | | Only 0 and 1 are valid for IPV6_MULTICAST_LOOP socket option, and we should return an error of EINVAL otherwise, per RFC3493. Based on patch from Shan Wei <shanwei@cn.fujitsu.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
| * ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).YOSHIFUJI Hideaki2008-06-121-0/+2
| | | | | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* | net: remove CVS keywordsAdrian Bunk2008-06-111-2/+0
|/ | | | | | | | This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Do not change protocol for UDPv6 sockets with pending sent data.Denis V. Lunev2008-06-051-3/+8
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6]: Do not change protocol for raw IPv6 sockets.Denis V. Lunev2008-06-051-0/+3
| | | | | | | | It is not allowed to change underlying protocol for int fd = socket(PF_INET6, SOCK_RAW, IPPROTO_UDP); Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] NETNS: Handle ancillary data in appropriate namespace.YOSHIFUJI Hideaki2008-06-051-1/+1
| | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6]: Fix the data length of get destination options with short lengthYang Hongyang2008-06-051-1/+1
| | | | | | | | | | | | | If get destination options with length which is not enough for that option,getsockopt() will still return the real length of the option, which is larger then the buffer space. This is because ipv6_getsockopt_sticky() returns the real length of the option. This patch fix this problem. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6]: Fix the return value of get destination options with NULL data pointerYang Hongyang2008-06-051-0/+3
| | | | | | | | | | | | | | If we pass NULL data buffer to getsockopt(), it will return 0, and the option length is set to -EFAULT: getsockopt(sk, IPPROTO_IPV6, IPV6_DSTOPTS, NULL, &len); This is because ipv6_getsockopt_sticky() will return -EFAULT or -EINVAL if some error occur. This patch fix this problem. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* ipv6: Compilation fix for compat MCAST_MSFILTER sockopts.Pavel Emelyanov2008-04-301-4/+4
| | | | | | | | | | | The last hunk from the commit dae50295 (ipv4/ipv6 compat: Fix SSM applications on 64bit kernels.) escaped from the compat_ipv6_setsockopt to the ipv6_getsockopt (I guess due to patch smartness wrt searching for context) thus breaking 32-bit and 64-bit-without-compat compilation. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add compat support for getsockopt (MCAST_MSFILTER)David L Stevens2008-04-291-0/+4
| | | | | | | | | | This patch adds support for getsockopt for MCAST_MSFILTER for both IPv4 and IPv6. It depends on the previous setsockopt patch, and uses the same method. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4/ipv6 compat: Fix SSM applications on 64bit kernels.David L Stevens2008-04-271-0/+5
| | | | | | | | Add support on 64-bit kernels for seting 32-bit compatible MCAST* socket options. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Share common code-paths for sticky socket options.YOSHIFUJI Hideaki2008-04-131-39/+25
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Check length of int/boolean optval provided by user in setsockopt().YOSHIFUJI Hideaki2008-04-121-7/+61
| | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6]: Check length of optval provided by user in setsockopt().Wang Chen2008-04-121-2/+8
| | | | | | | | | Check length of setsockopt's optval, which provided by user, before copy it from user space. For POSIX compliant, return -EINVAL for setsockopt of short lengths. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6]: Sparse: Reuse previous delaration where appropriate.YOSHIFUJI Hideaki2008-04-111-3/+0
| | | | | | | | | | | | net/ipv6/ipv6_sockglue.c:162:16: warning: symbol 'net' shadows an earlier one | net/ipv6/ipv6_sockglue.c:111:13: originally declared here | net/ipv6/ipv6_sockglue.c:175:16: warning: symbol 'net' shadows an earlier one | net/ipv6/ipv6_sockglue.c:111:13: originally declared here | net/ipv6/ip6mr.c:1241:10: warning: symbol 'ret' shadows an earlier one | net/ipv6/ip6mr.c:1163:6: originally declared here Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] MROUTE: Support multicast forwarding.YOSHIFUJI Hideaki2008-04-051-0/+7
| | | | | | | | Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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