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2010-04-13ipv4: ipmr: remove net pointer from struct mfc_cachePatrick McHardy1-33/+32
Now that cache entries in unres_queue don't need to be distinguished by their network namespace pointer anymore, we can remove it from struct mfc_cache add pass the namespace as function argument to the functions that need it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13ipv4: ipmr: move unres_queue and timer to per-namespace dataPatrick McHardy1-41/+29
The unres_queue is currently shared between all namespaces. Following patches will additionally allow to create multiple multicast routing tables in each namespace. Having a single shared queue for all these users seems to excessive, move the queue and the cleanup timer to the per-namespace data to unshare it. As a side-effect, this fixes a bug in the seq file iteration functions: the first entry returned is always from the current namespace, entries returned after that may belong to any namespace. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.hTejun Heo1-0/+1
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>
2010-03-29Fix comment and Kconfig typos for 'require' and 'fragment'Gilles Espinasse1-1/+1
Signed-off-by: Gilles Espinasse <g.esp@free.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-03-27net: ipmr/ip6mr: prevent out-of-bounds vif_table accessNicolas Dichtel1-4/+7
When cache is unresolved, c->mf[6]c_parent is set to 65535 and minvif, maxvif are not initialized, hence we must avoid to parse IIF and OIF. A second problem can happen when the user dumps a cache entry where a VIF, that was referenced at creation time, has been removed. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25netfilter: ipv4: use NFPROTO values for NF_HOOK invocationJan Engelhardt1-1/+1
The semantic patch that was used: // <smpl> @@ @@ (NF_HOOK |NF_HOOK_COND |nf_hook )( -PF_INET, +NFPROTO_IPV4, ...) // </smpl> Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2010-03-19net: ipmr/ip6mr: fix potential out-of-bounds vif_table accessPatrick McHardy1-0/+3
mfc_parent of cache entries is used to index into the vif_table and is initialised from mfcctl->mfcc_parent. This can take values of to 2^16-1, while the vif_table has only MAXVIFS (32) entries. The same problem affects ip6mr. Refuse invalid values to fix a potential out-of-bounds access. Unlike the other validity checks, this is checked in ipmr_mfc_add() instead of the setsockopt handler since its unused in the delete path and might be uninitialized. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17ipmr: remove useless checks from ipmr_device_eventPavel Emelyanov1-3/+0
The net being checked there is dev_net(dev) and thus this if is always false. Fits both net and net-next trees. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-17Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller1-1/+3
Conflicts: drivers/net/can/Kconfig
2009-11-13ipmr: missing dev_put() on error path in vif_add()Dan Carpenter1-1/+3
The other error paths in front of this one have a dev_put() but this one got missed. Found by smatch static checker. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Wang Chen <ellre923@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-29ipmr: Optimize multiple unregistrationEric Dumazet1-5/+10
Speedup module unloading by factorizing synchronize_rcu() calls Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-18inet: rename some inet_sock fieldsEric Dumazet1-1/+1
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>
2009-10-07add vif using local interface index instead of IPIlia K1-1/+11
When routing daemon wants to enable forwarding of multicast traffic it performs something like: struct vifctl vc = { .vifc_vifi = 1, .vifc_flags = 0, .vifc_threshold = 1, .vifc_rate_limit = 0, .vifc_lcl_addr = ip, /* <--- ip address of physical interface, e.g. eth0 */ .vifc_rmt_addr.s_addr = htonl(INADDR_ANY), }; setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc, sizeof(vc)); This leads (in the kernel) to calling vif_add() function call which search the (physical) device using assigned IP address: dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr); The current API (struct vifctl) does not allow to specify an interface other way than using it's IP, and if there are more than a single interface with specified IP only the first one will be found. The attached patch (against 2.6.30.4) allows to specify an interface by its index, instead of IP address: struct vifctl vc = { .vifc_vifi = 1, .vifc_flags = VIFF_USE_IFINDEX, /* NEW */ .vifc_threshold = 1, .vifc_rate_limit = 0, .vifc_lcl_ifindex = if_nametoindex("eth0"), /* NEW */ .vifc_rmt_addr.s_addr = htonl(INADDR_ANY), }; setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc, sizeof(vc)); Signed-off-by: Ilia K. <mail4ilia@gmail.com> === modified file 'include/linux/mroute.h' Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30net: Make setsockopt() optlen be unsigned.David S. Miller1-1/+1
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>
2009-09-14net: constify struct net_protocolAlexey Dobriyan1-5/+1
Remove long removed "inet_protocol_base" declaration. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01netdev: convert pseudo-devices to netdev_tx_tStephen Hemminger1-1/+1
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-05net: use NETDEV_TX_OK instead of 0 in ndo_start_xmit() functionsPatrick McHardy1-1/+1
This patch is the result of an automatic spatch transformation to convert all ndo_start_xmit() return values of 0 to NETDEV_TX_OK. Some occurences are missed by the automatic conversion, those will be handled in a seperate patch. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-14PIM-SM: namespace changesTom Goff1-12/+17
IPv4: - make PIM register vifs netns local - set the netns when a PIM register vif is created - make PIM available in all network namespaces (if CONFIG_IP_PIMSM_V2) by adding the protocol handler when multicast routing is initialized IPv6: - make PIM register vifs netns local - make PIM available in all network namespaces (if CONFIG_IPV6_PIMSM_V2) by adding the protocol handler when multicast routing is initialized Signed-off-by: Tom Goff <thomas.goff@boeing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03net: skb->dst accessorsEric Dumazet1-7/+6
Define three accessors to get/set dst attached to a skb struct dst_entry *skb_dst(const struct sk_buff *skb) void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst) void skb_dst_drop(struct sk_buff *skb) This one should replace occurrences of : dst_release(skb->dst) skb->dst = NULL; Delete skb->dst field Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03net: skb->rtable accessorEric Dumazet1-3/+3
Define skb_rtable(const struct sk_buff *skb) accessor to get rtable from skb Delete skb->rtable field Setting rtable is not allowed, just set dst instead as rtable is an alias. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06ipmr: use goto to common label instead of opencodingIlpo Järvinen1-2/+1
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: enable namespace support in ipv4 multicast routing codeBenjamin Thery1-108/+135
This last patch makes the appropriate changes to use and propagate the network namespace where needed in IPv4 multicast routing code. This consists mainly in replacing all the remaining init_net occurences with current netns pointer retrieved from sockets, net devices or mfc_caches depending on the routines' contexts. Some routines receive a new 'struct net' parameter to propagate the current netns: * vif_add/vif_delete * ipmr_new_tunnel * mroute_clean_tables * ipmr_cache_find * ipmr_cache_report * ipmr_cache_unresolved * ipmr_mfc_add/ipmr_mfc_delete * ipmr_get_route * rt_fill_info (in route.c) Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: declare ipmr /proc/net entries per-namespaceBenjamin Thery1-39/+62
Declare IPv4 multicast forwarding /proc/net entries per-namespace: /proc/net/ip_mr_vif /proc/net/ip_mr_cache Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: declare reg_vif_num per-namespaceBenjamin Thery1-10/+12
Preliminary work to make IPv4 multicast routing netns-aware. Declare variable 'reg_vif_num' per-namespace, move into struct netns_ipv4. At the moment, this variable is only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: declare mroute_do_assert and mroute_do_pim per-namespaceBenjamin Thery1-13/+11
Preliminary work to make IPv4 multicast routing netns-aware. Declare IPv multicast routing variables 'mroute_do_assert' and 'mroute_do_pim' per-namespace in struct netns_ipv4. At the moment, these variables are only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: declare counter cache_resolve_queue_len per-namespaceBenjamin Thery1-18/+21
Preliminary work to make IPv4 multicast routing netns-aware. Declare variable cache_resolve_queue_len per-namespace: move it into struct netns_ipv4. This variable counts the number of unresolved cache entries queued in the list mfc_unres_queue. This list is kept global to all netns as the number of entries per namespace is limited to 10 (hardcoded in routine ipmr_cache_unresolved). Entries belonging to different namespaces in mfc_unres_queue will be identified by matching the mfc_net member introduced previously in struct mfc_cache. Keeping this list global to all netns, also allows us to keep a single timer (ipmr_expire_timer) to handle their expiration. In some places cache_resolve_queue_len value was tested for arming or deleting the timer. These tests were equivalent to testing mfc_unres_queue value instead and are replaced in this patch. At the moment, cache_resolve_queue_len is only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: dynamically allocate mfc_cache_arrayBenjamin Thery1-13/+28
Preliminary work to make IPv4 multicast routing netns-aware. Dynamically allocate IPv4 multicast forwarding cache, mfc_cache_array, and move it to struct netns_ipv4. At the moment, mfc_cache_array is only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: store netns in struct mfc_cacheBenjamin Thery1-9/+17
This patch stores into struct mfc_cache the network namespace each mfc_cache belongs to. The new member is mfc_net. mfc_net is assigned at cache allocation and doesn't change during the rest of the cache entry life. A new net parameter is added to ipmr_cache_alloc/ipmr_cache_alloc_unres. This will help to retrieve the current netns around the IPv4 multicast routing code. At the moment, all mfc_cache are allocated in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: dynamically allocate vif_tableBenjamin Thery1-41/+68
Preliminary work to make IPv6 multicast routing netns-aware. Dynamically allocate interface table vif_table and move it to struct netns_ipv4, and update MIF_EXISTS() macro. At the moment, vif_table is only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22netns: ipmr: allocate mroute_socket per-namespace.Benjamin Thery1-15/+13
Preliminary work to make IPv4 multicast routing netns-aware. Make IPv4 multicast routing mroute_socket per-namespace, moves it into struct netns_ipv4. At the moment, mroute_socket is only referenced in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-16ipmr: merge common codeIlpo Järvinen1-64/+39
Also removes redundant skb->len < x check which can't be true once pskb_may_pull(skb, x) succeeded. $ diff-funcs pim_rcv ipmr.c ipmr.c pim_rcv_v1 --- ipmr.c:pim_rcv() +++ ipmr.c:pim_rcv_v1() @@ -1,22 +1,27 @@ -static int pim_rcv(struct sk_buff * skb) +int pim_rcv_v1(struct sk_buff * skb) { - struct pimreghdr *pim; + struct igmphdr *pim; struct iphdr *encap; struct net_device *reg_dev = NULL; if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap))) goto drop; - pim = (struct pimreghdr *)skb_transport_header(skb); - if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) || - (pim->flags&PIM_NULL_REGISTER) || - (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 && - csum_fold(skb_checksum(skb, 0, skb->len, 0)))) + pim = igmp_hdr(skb); + + if (!mroute_do_pim || + skb->len < sizeof(*pim) + sizeof(*encap) || + pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER) goto drop; - /* check if the inner packet is destined to mcast group */ encap = (struct iphdr *)(skb_transport_header(skb) + - sizeof(struct pimreghdr)); + sizeof(struct igmphdr)); + /* + Check that: + a. packet is really destinted to a multicast group + b. packet is not a NULL-REGISTER + c. packet is not truncated + */ if (!ipv4_is_multicast(encap->daddr) || encap->tot_len == 0 || ntohs(encap->tot_len) + sizeof(*pim) > skb->len) @@ -40,9 +45,9 @@ skb->ip_summed = 0; skb->pkt_type = PACKET_HOST; dst_release(skb->dst); + skb->dst = NULL; reg_dev->stats.rx_bytes += skb->len; reg_dev->stats.rx_packets++; - skb->dst = NULL; nf_reset(skb); netif_rx(skb); dev_put(reg_dev); $ codiff net/ipv4/ipmr.o.old net/ipv4/ipmr.o.new net/ipv4/ipmr.c: pim_rcv_v1 | -283 pim_rcv | -284 2 functions changed, 567 bytes removed net/ipv4/ipmr.c: __pim_rcv | +307 1 function changed, 307 bytes added net/ipv4/ipmr.o.new: 3 functions changed, 307 bytes added, 567 bytes removed, diff: -260 (Tested on x86_64). It seems that pimlen arg could be left out as well and eq-sizedness of structs trapped with BUILD_BUG_ON but I don't think that's more than a cosmetic flaw since there aren't that many args anyway. Compile tested. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-03net: /proc/net/ip_mr_cache, display Iif as a signed shortBenjamin Thery1-1/+1
Today, iproute2 fails to show multicast forwarding unresolved cache entries while scanning /proc/net/ip_mr_cache. Indeed, it expects to see -1 in 'Iif' column to identify unresolved entries but the kernel outputs 65535. It's a signed/unsigned issue: 'Iif', the source interface, is retrieved from member mfc_parent in struct mfc_cache. mfc_parent is a vifi_t: unsigned short, but is displayed in ipmr_mfc_seq_show() as "%-3d", signed integer. In unresolevd entries, the 65535 value (0xFFFF) comes from this define: #define ALL_VIFS ((vifi_t)(-1)) That may explains why the guy who added support for this in iproute2 thought a -1 should be expected. I don't know if this must be fixed in kernel or in iproute2. Who is right? What is the correct API? How was it designed originally? I let you decide if it should goes in the kernel or be fixed in iproute2. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-03net: fix /proc/net/ip_mr_cache display - V2Benjamin Thery1-5/+11
/proc/net/ip_mr_cache and /proc/net/ip6_mr_cache displays garbage when showing unresolved mfc_cache entries. [root@qemu tests]# cat /proc/net/ip_mr_cache Group Origin Iif Pkts Bytes Wrong Oifs 014C00EF 010014AC 1 10 10050 0 2:1 3:1 024C00EF 010014AC 65535 514 2 -559067475 The first line is correct. It is a resolved cache entry, 10 packets used it... The second line represents an unresolved entry, and the columns Pkts(4th), Bytes(5th) and Wrong(6th) just show garbage. In struct mfc_cache, there's an union to store data for resolved and unresolved cases. And what ipmr_mfc_seq_show() is printing in these columns for the unresolved entries is some bytes from mfc_cache.mfc_un.res. Bad. (eg. In our case -559067475 is in fact 0xdead4ead which is the spinlock magic from mfc_cache.mfc_un.unres.unresolved.lock.magic). This patch replaces the garbage data written in these columns for the unresolved entries by '0' (zeros) which is more correct. This change doesn't break the ABI. Also, mfc->mfc_un.res.pkt, mfc->mfc_un.res.bytes, mfc->mfc_un.res.wrong_if are unsigned long. It applies on top of net-next-2.6. The patch for net-2.6 is slightly different because of the NIP6_FMT to %pI6 conversion that was made in the seq_printf. Changelog: ========== V2: * Instead of breaking the ABI by suppressing the columns that have no meaning for unresolved entries, fill them with 0 values. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20ipmr: convert ipmr virtual interface to net_device_opsStephen Hemminger1-1/+5
Convert to new network device ops interface. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller1-4/+5
Conflicts: drivers/net/ixgbe/ixgbe_main.c include/net/mac80211.h net/phonet/af_phonet.c
2008-11-19ip: convert to net_device_ops for ioctlStephen Hemminger1-8/+17
Convert to net_device_ops function table pointer for ioctl. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19net: fix ip_mr_init() error pathBenjamin Thery1-4/+5
Similarly to IPv6 ip6_mr_init() (fixed last week), the order of cleanup operations in the error/exit section of ip_mr_init() is completely inversed. It should be the other way around. Also a del_timer() is missing in the error path. I should have guessed last week that this same error existed in ipmr.c too, as ip6mr.c is largely inspired by ipmr.c. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03net: clean up net/ipv4/ipmr.cJianjun Kong1-65/+65
Signed-off-by: Jianjun Kong <jianjun@zeuux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-13net: Rationalise email address: Network Specific PartsAlan Cox1-1/+1
Clean up the various different email addresses of mine listed in the code to a single current and valid address. As Dave says his network merges for 2.6.28 are now done this seems a good point to send them in where they won't risk disrupting real changes. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19netns: Use net_eq() to compare net-namespaces for optimization.YOSHIFUJI Hideaki1-1/+1
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>
2008-07-16mib: add net to IP_INC_STATS_BHPavel Emelyanov1-2/+2
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14ipv4: Fix ipmr unregister device oopsWang Chen1-8/+14
An oops happens during device unregister. The following oops happened when I add two tunnels, which use a same device, and then delete one tunnel. Obviously deleting tunnel "A" causes device unregister, which send a notification, and after receiving notification, ipmr do unregister again for tunnel "B" which also use same device. That is wrong. After receiving notification, ipmr only needs to decrease reference count and don't do duplicated unregister. Fortunately, IPv6 side doesn't add tunnel in ip6mr, so it's clean. This patch fixs: - unregister device oops - using after dev_put() Here is the oops: === Jul 11 15:39:29 wangchen kernel: ------------[ cut here ]------------ Jul 11 15:39:29 wangchen kernel: kernel BUG at net/core/dev.c:3651! Jul 11 15:39:29 wangchen kernel: invalid opcode: 0000 [#1] Jul 11 15:39:29 wangchen kernel: Modules linked in: ipip tunnel4 nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs ipv6 snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device af_packet binfmt_misc button battery ac loop dm_mod usbhid ff_memless pcmcia firmware_class ohci1394 8139too mii ieee1394 yenta_socket rsrc_nonstatic pcmcia_core ide_cd_mod cdrom snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm i2c_i801 snd_timer snd i2c_core soundcore snd_page_alloc rng_core shpchp ehci_hcd uhci_hcd pci_hotplug intel_agp agpgart usbcore ext3 jbd ata_piix ahci libata dock edd fan thermal processor thermal_sys piix sd_mod scsi_mod ide_disk ide_core [last unloaded: freq_table] Jul 11 15:39:29 wangchen kernel: Jul 11 15:39:29 wangchen kernel: Pid: 4102, comm: mroute Not tainted (2.6.26-rc9-default #69) Jul 11 15:39:29 wangchen kernel: EIP: 0060:[<c024636b>] EFLAGS: 00010202 CPU: 0 Jul 11 15:39:29 wangchen kernel: EIP is at rollback_registered+0x61/0xe3 Jul 11 15:39:29 wangchen kernel: EAX: 00000001 EBX: ecba6000 ECX: 00000000 EDX: ffffffff Jul 11 15:39:29 wangchen kernel: ESI: 00000001 EDI: ecba6000 EBP: c03de2e8 ESP: ed8e7c3c Jul 11 15:39:29 wangchen kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Jul 11 15:39:29 wangchen kernel: Process mroute (pid: 4102, ti=ed8e6000 task=ed41e830 task.ti=ed8e6000) Jul 11 15:39:29 wangchen kernel: Stack: ecba6000 c024641c 00000028 c0284e1a 00000001 c03de2e8 ecba6000 eecff360 Jul 11 15:39:29 wangchen kernel: c0284e4c c03536f4 fffffff8 00000000 c029a819 ecba6000 00000006 ecba6000 Jul 11 15:39:29 wangchen kernel: 00000000 ecba6000 c03de2c0 c012841b ffffffff 00000000 c024639f ecba6000 Jul 11 15:39:29 wangchen kernel: Call Trace: Jul 11 15:39:29 wangchen kernel: [<c024641c>] unregister_netdevice+0x2f/0x51 Jul 11 15:39:29 wangchen kernel: [<c0284e1a>] vif_delete+0xaf/0xc3 Jul 11 15:39:29 wangchen kernel: [<c0284e4c>] ipmr_device_event+0x1e/0x30 Jul 11 15:39:29 wangchen kernel: [<c029a819>] notifier_call_chain+0x2a/0x47 Jul 11 15:39:29 wangchen kernel: [<c012841b>] raw_notifier_call_chain+0x9/0xc Jul 11 15:39:29 wangchen kernel: [<c024639f>] rollback_registered+0x95/0xe3 Jul 11 15:39:29 wangchen kernel: [<c024641c>] unregister_netdevice+0x2f/0x51 Jul 11 15:39:29 wangchen kernel: [<c0284e1a>] vif_delete+0xaf/0xc3 Jul 11 15:39:29 wangchen kernel: [<c0285eee>] ip_mroute_setsockopt+0x47a/0x801 Jul 11 15:39:29 wangchen kernel: [<eea5a70c>] do_get_write_access+0x2df/0x313 [jbd] Jul 11 15:39:29 wangchen kernel: [<c01727c4>] __find_get_block_slow+0xda/0xe4 Jul 11 15:39:29 wangchen kernel: [<c0172a7f>] __find_get_block+0xf8/0x122 Jul 11 15:39:29 wangchen kernel: [<c0172a7f>] __find_get_block+0xf8/0x122 Jul 11 15:39:29 wangchen kernel: [<eea5d563>] journal_cancel_revoke+0xda/0x110 [jbd] Jul 11 15:39:29 wangchen kernel: [<c0263501>] ip_setsockopt+0xa9/0x9ee Jul 11 15:39:29 wangchen kernel: [<eea5d563>] journal_cancel_revoke+0xda/0x110 [jbd] Jul 11 15:39:29 wangchen kernel: [<eea5a70c>] do_get_write_access+0x2df/0x313 [jbd] Jul 11 15:39:29 wangchen kernel: [<eea69287>] __ext3_get_inode_loc+0xcf/0x271 [ext3] Jul 11 15:39:29 wangchen kernel: [<eea743c7>] __ext3_journal_dirty_metadata+0x13/0x32 [ext3] Jul 11 15:39:29 wangchen kernel: [<c0116434>] __wake_up+0xf/0x15 Jul 11 15:39:29 wangchen kernel: [<eea5a424>] journal_stop+0x1bd/0x1c6 [jbd] Jul 11 15:39:29 wangchen kernel: [<eea703a7>] __ext3_journal_stop+0x19/0x34 [ext3] Jul 11 15:39:29 wangchen kernel: [<c014291e>] get_page_from_freelist+0x94/0x369 Jul 11 15:39:29 wangchen kernel: [<c01408f2>] filemap_fault+0x1ac/0x2fe Jul 11 15:39:29 wangchen kernel: [<c01a605e>] security_sk_alloc+0xd/0xf Jul 11 15:39:29 wangchen kernel: [<c023edea>] sk_prot_alloc+0x36/0x78 Jul 11 15:39:29 wangchen kernel: [<c0240037>] sk_alloc+0x3a/0x40 Jul 11 15:39:29 wangchen kernel: [<c0276062>] raw_hash_sk+0x46/0x4e Jul 11 15:39:29 wangchen kernel: [<c0166aff>] d_alloc+0x1b/0x157 Jul 11 15:39:29 wangchen kernel: [<c023e4d1>] sock_common_setsockopt+0x12/0x16 Jul 11 15:39:29 wangchen kernel: [<c023cb1e>] sys_setsockopt+0x6f/0x8e Jul 11 15:39:29 wangchen kernel: [<c023e105>] sys_socketcall+0x15c/0x19e Jul 11 15:39:29 wangchen kernel: [<c0103611>] sysenter_past_esp+0x6a/0x99 Jul 11 15:39:29 wangchen kernel: [<c0290000>] unix_poll+0x69/0x78 Jul 11 15:39:29 wangchen kernel: ======================= Jul 11 15:39:29 wangchen kernel: Code: 83 e0 01 00 00 85 c0 75 1f 53 53 68 12 81 31 c0 e8 3c 30 ed ff ba 3f 0e 00 00 b8 b9 7f 31 c0 83 c4 0c 5b e9 f5 26 ed ff 48 74 04 <0f> 0b eb fe 89 d8 e8 21 ff ff ff 89 d8 e8 62 ea ff ff c7 83 e0 Jul 11 15:39:29 wangchen kernel: EIP: [<c024636b>] rollback_registered+0x61/0xe3 SS:ESP 0068:ed8e7c3c Jul 11 15:39:29 wangchen kernel: ---[ end trace c311acf85d169786 ]--- === Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14ipv4: Check return of dev_set_allmultiWang Chen1-1/+39
allmulti might overflow. Commit: "netdevice: Fix promiscuity and allmulti overflow" in net-next makes dev_set_promiscuity/allmulti return error number if overflow happened. Here, we check the positive increment for allmulti to get error return. PS: For unwinding tunnel creating, we let ipip->ioctl() to handle it. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-03ipv4: Do cleanup for ip_mr_initWang Chen1-4/+24
Same as ip6_mr_init(), make ip_mr_init() return errno if fails. But do not do error handling in inet_init(), just print a msg. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-11net: remove CVS keywordsAdrian Bunk1-2/+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>
2008-05-21ipmr: Use on-device stats instead of private ones.Pavel Emelyanov1-16/+9
These devices use the private area of appropriate size for statistics. Turning them to use on-device ones make them "privless" and thus - really small wrt kmalloc cache, they are allocated from. Besides, code looks nicer, because of absence of multi-braced type casts and dereferences. [ Fix build failures -DaveM ] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21ipmr: Ipip tunnel uses on-device stats.Pavel Emelyanov1-2/+2
The ipmr uses ipip tunnels for its purposes and updates the tunnels' stats, but the ipip driver is already switched to use on-device ones. Actually, this is a part of the patch #4 from this set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.YOSHIFUJI Hideaki1-2/+2
Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_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>
2008-03-26[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.YOSHIFUJI Hideaki1-1/+1
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>
2008-03-05[IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid castsEric Dumazet1-3/+3
(Anonymous) unions can help us to avoid ugly casts. A common cast it the (struct rtable *)skb->dst one. Defining an union like : union { struct dst_entry *dst; struct rtable *rtable; }; permits to use skb->rtable in place. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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