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2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_auth_keyChristoph Hellwig1-8/+2
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Adapt sctp_setsockopt to use a kzfree for this case. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: switch sctp_setsockopt_auth_key to use memzero_explicitChristoph Hellwig1-1/+2
Switch from kzfree to sctp_setsockopt_auth_key + kfree to prepare for moving the kfree to common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_hmac_identChristoph Hellwig1-16/+5
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_auth_chunkChristoph Hellwig1-7/+4
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_maxburstChristoph Hellwig1-19/+16
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_fragment_interleaveChristoph Hellwig1-8/+3
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_contextChristoph Hellwig1-15/+13
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_adaptation_layerChristoph Hellwig1-7/+4
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_maxsegChristoph Hellwig1-11/+11
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_mappedv4Christoph Hellwig1-6/+4
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_associnfoChristoph Hellwig1-16/+16
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_rtoinfoChristoph Hellwig1-14/+12
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_nodelayChristoph Hellwig1-8/+3
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_peer_primary_addrChristoph Hellwig1-12/+9
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_primary_addrChristoph Hellwig1-9/+5
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_default_sndinfoChristoph Hellwig1-26/+23
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_default_send_paramChristoph Hellwig1-30/+26
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_initmsgChristoph Hellwig1-13/+11
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_partial_delivery_pointChristoph Hellwig1-9/+4
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_delayed_ackChristoph Hellwig1-27/+22
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_peer_addr_paramsChristoph Hellwig1-25/+19
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_autocloseChristoph Hellwig1-4/+3
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_eventsChristoph Hellwig1-7/+2
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_disable_fragmentsChristoph Hellwig1-11/+3
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to __sctp_setsockopt_connectxChristoph Hellwig1-31/+19
Use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: pass a kernel pointer to sctp_setsockopt_bindxChristoph Hellwig1-25/+8
Rename sctp_setsockopt_bindx_kernel back to sctp_setsockopt_bindx, and use the kernel pointer that sctp_setsockopt has available instead of directly handling the user pointer in the old sctp_setsockopt_bindx. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20sctp: copy the optval from user space in sctp_setsockoptChristoph Hellwig1-0/+8
Prepare for for moving the copy_from_user from the individual sockopts to the main setsockopt helper. As of this commit the kopt variable is not used yet, but the following commits will start using it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20Merge branch 'sockopt-cleanups'David S. Miller98-1884/+786
Christoph Hellwig says: ==================== sockopt cleanups this series cleans up various lose ends in the sockopt code, most importantly removing the compat_{get,set}sockopt infrastructure in favor of just using in_compat_syscall() in the few places that care. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: make ->{get,set}sockopt in proto_ops optionalChristoph Hellwig26-73/+11
Just check for a NULL method instead of wiring up sock_no_{get,set}sockopt. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv6: remove compat_ipv6_{get,set}sockoptChristoph Hellwig21-390/+51
Handle the few cases that need special treatment in-line using in_compat_syscall(). This also removes all the now unused compat_{get,set}sockopt methods. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv6: factor out mcast join/leave setsockopt helpersChristoph Hellwig1-50/+53
Factor out one helper each for setting the native and compat version of the MCAST_MSFILTER option. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv6: factor out MCAST_MSFILTER setsockopt helpersChristoph Hellwig1-76/+83
Factor out one helper each for setting the native and compat version of the MCAST_MSFILTER option. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv6: factor out MCAST_MSFILTER getsockopt helpersChristoph Hellwig1-65/+74
Factor out one helper each for getting the native and compat version of the MCAST_MSFILTER option. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv4: remove compat_ip_{get,set}sockoptChristoph Hellwig10-229/+61
Handle the few cases that need special treatment in-line using in_compat_syscall(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv4: factor out mcast join/leave setsockopt helpersChristoph Hellwig1-53/+56
Factor out one helper each for setting the native and compat version of the MCAST_MSFILTER option. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv4: factor out MCAST_MSFILTER setsockopt helpersChristoph Hellwig1-76/+86
Factor out one helper each for setting the native and compat version of the MCAST_MSFILTER option. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/ipv4: factor out MCAST_MSFILTER getsockopt helpersChristoph Hellwig1-61/+70
Factor out one helper each for getting the native and compat version of the MCAST_MSFILTER option. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter: split nf_sockoptChristoph Hellwig1-17/+13
Split nf_sockopt into a getsockopt and setsockopt side as they share very little code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter: remove the compat argument to xt_copy_counters_from_userChristoph Hellwig5-12/+8
Lift the in_compat_syscall() from the callers instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter: remove the compat_{get,set} methodsChristoph Hellwig4-62/+4
All instances handle compat sockopts via in_compat_syscall() now, so remove the compat_{get,set} methods as well as the compat_nf_{get,set}sockopt wrappers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter/ebtables: clean up compat {get, set}sockopt handlingChristoph Hellwig1-116/+98
Merge the native and compat {get,set}sockopt handlers using in_compat_syscall(). Note that this required moving a fair amout of code around to be done sanely. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter/ip6_tables: clean up compat {get, set}sockopt handlingChristoph Hellwig1-66/+21
Merge the native and compat {get,set}sockopt handlers using in_compat_syscall(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter/ip_tables: clean up compat {get,set}sockopt handlingChristoph Hellwig1-65/+21
Merge the native and compat {get,set}sockopt handlers using in_compat_syscall(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20netfilter/arp_tables: clean up compat {get, set}sockopt handlingChristoph Hellwig1-64/+21
Merge the native and compat {get,set}sockopt handlers using in_compat_syscall(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: remove compat_sys_{get,set}sockoptChristoph Hellwig20-125/+62
Now that the ->compat_{get,set}sockopt proto_ops methods are gone there is no good reason left to keep the compat syscalls separate. This fixes the odd use of unsigned int for the compat_setsockopt optlen and the missing sock_use_custom_sol_socket. It would also easily allow running the eBPF hooks for the compat syscalls, but such a large change in behavior does not belong into a consolidation patch like this one. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: remove compat_sock_common_{get,set}sockoptChristoph Hellwig16-96/+8
Add the compat handling to sock_common_{get,set}sockopt instead, keyed of in_compat_syscall(). This allow to remove the now unused ->compat_{get,set}sockopt methods from struct proto_ops. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: simplify cBPF setsockopt compat handlingChristoph Hellwig6-96/+40
Add a helper that copies either a native or compat bpf_fprog from userspace after verifying the length, and remove the compat setsockopt handlers that now aren't required. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: streamline __sys_getsockoptChristoph Hellwig1-17/+14
Return early when sockfd_lookup_light fails to reduce a level of indentation for most of the function body. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: streamline __sys_setsockoptChristoph Hellwig1-30/+27
Return early when sockfd_lookup_light fails to reduce a level of indentation for most of the function body. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net/atm: remove the atmdev_ops {get, set}sockopt methodsChristoph Hellwig10-143/+2
All implementations of these two methods are dummies that always return -EINVAL. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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