kernel/linux.git/include/linux/inetdevice.h, branch v5.10.185

net: socket: remove register_gifconf

2022-09-28T09:10:35+00:00

[ Upstream commit b0e99d03778b2418aec20db99d97d19d25d198b6 ] Since dynamic registration of the gifconf() helper is only used for IPv4, and this can not be in a loadable module, this can be simplified noticeably by turning it into a direct function call as a preparation for cleaning up the compat handling. Signed-off-by: Arnd Bergmann Reviewed-by: Christoph Hellwig Signed-off-by: David S. Miller Stable-dep-of: 5641c751fe2f ("net: enetc: deny offload of tc-based TSN features on VF interfaces") Signed-off-by: Sasha Levin

net: igmp: increase size of mr_ifc_count

2021-08-18T06:59:13+00:00

[ Upstream commit b69dd5b3780a7298bd893816a09da751bc0636f7 ] Some arches support cmpxchg() on 4-byte and 8-byte only. Increase mr_ifc_count width to 32bit to fix this problem. Fixes: 4a2b285e7e10 ("net: igmp: fix data-race in igmp_ifc_timer_expire()") Signed-off-by: Eric Dumazet Reported-by: Guenter Roeck Link: https://lore.kernel.org/r/20210811195715.3684218-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

net: ipv4: provide __rcu annotation for ifa_list

2019-06-03T01:08:36+00:00

ifa_list is protected by rcu, yet code doesn't reflect this. Add the __rcu annotations and fix up all places that are now reported by sparse. I've done this in the same commit to not add intermediate patches that result in new warnings. Reported-by: Eric Dumazet Signed-off-by: Florian Westphal Signed-off-by: David S. Miller

net: inetdevice: provide replacement iterators for in_ifaddr walk

2019-06-03T01:06:26+00:00

The ifa_list is protected either by rcu or rtnl lock, but the current iterators do not account for this. This adds two iterators as replacement, a later patch in the series will update them with the needed rcu/rtnl_dereference calls. Its not done in this patch yet to avoid sparse warnings -- the fields lack the proper __rcu annotation. Signed-off-by: Florian Westphal Signed-off-by: David S. Miller

ipv4: Move IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN to helper

2019-03-29T17:48:03+00:00

in_dev lookup followed by IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN check is called in several places, some with the rcu lock and others with the rtnl held. Move the check to a helper similar to what IPv6 has. Since the helper can be invoked from either context use rcu_dereference_rtnl to dereference ip_ptr. Signed-off-by: David Ahern Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller

ipv4/igmp: fix v1/v2 switchback timeout based on rfc3376, 8.12

2018-10-30T03:26:06+00:00

Similiar with ipv6 mcast commit 89225d1ce6af3 ("net: ipv6: mld: fix v1/v2 switchback timeout to rfc3810, 9.12.") i) RFC3376 8.12. Older Version Querier Present Timeout says: The Older Version Querier Interval is the time-out for transitioning a host back to IGMPv3 mode once an older version query is heard. When an older version query is received, hosts set their Older Version Querier Present Timer to Older Version Querier Interval. This value MUST be ((the Robustness Variable) times (the Query Interval in the last Query received)) plus (one Query Response Interval). Currently we only use a hardcode value IGMP_V1/v2_ROUTER_PRESENT_TIMEOUT. Fix it by adding two new items mr_qi(Query Interval) and mr_qri(Query Response Interval) in struct in_device. Now we can calculate the switchback time via (mr_qrv * mr_qi) + mr_qri. We need update these values when receive IGMPv3 queries. Reported-by: Ying Xu Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

route: add support for directed broadcast forwarding

2018-07-29T19:37:06+00:00

This patch implements the feature described in rfc1812#section-5.3.5.2 and rfc2644. It allows the router to forward directed broadcast when sysctl bc_forwarding is enabled. Note that this feature could be done by iptables -j TEE, but it would cause some problems: - target TEE's gateway param has to be set with a specific address, and it's not flexible especially when the route wants forward all directed broadcasts. - this duplicates the directed broadcasts so this may cause side effects to applications. Besides, to keep consistent with other os router like BSD, it's also necessary to implement it in the route rx path. Note that route cache needs to be flushed when bc_forwarding is changed. Signed-off-by: Xin Long Signed-off-by: David S. Miller

net/ipv4: Add support for specifying metric of connected routes

2018-05-29T14:12:45+00:00

Add support for IFA_RT_PRIORITY to ipv4 addresses. If the metric is changed on an existing address then the new route is inserted before removing the old one. Since the metric is one of the route keys, the prefix route can not be replaced. Signed-off-by: David Ahern Signed-off-by: David S. Miller

devinet_ioctl(): take copyin/copyout to caller

2018-01-25T00:13:45+00:00

Reviewed-by: Christoph Hellwig Signed-off-by: Al Viro

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-11-04T00:26:51+00:00

Files removed in 'net-next' had their license header updated in 'net'. We take the remove from 'net-next'. Signed-off-by: David S. Miller