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2021-06-22sctp: add pad chunk and its make function and event tableXin Long1-0/+7
This chunk is defined in rfc4820#section-3, and used to pad an SCTP packet. The receiver must discard this chunk and continue processing the rest of the chunks in the packet. Add it now, as it will be bundled with a heartbeat chunk to probe pmtu in the following patches. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-31sctp: add the error cause for new encapsulation port restartXin Long1-0/+20
This patch is to add the function to make the abort chunk with the error cause for new encapsulation port restart, defined on Section 4.4 in draft-tuexen-tsvwg-sctp-udp-encaps-cons-03. v1->v2: - no change. v2->v3: - no need to call htons() when setting nep.cur_port/new_port. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-06-16sctp: Replace zero-length array with flexible-arrayGustavo A. R. Silva1-18/+18
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://github.com/KSPP/linux/issues/21 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104Thomas Gleixner1-16/+1
Based on 1 normalized pattern(s): this sctp implementation is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this sctp implementation is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with gnu cc see the file copying if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 42 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091649.683323110@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-04sctp: add support for dscp and flowlabel per transportXin Long1-0/+7
Like some other per transport params, flowlabel and dscp are added in transport, asoc and sctp_sock. By default, transport sets its value from asoc's, and asoc does it from sctp_sock. flowlabel only works for ipv6 transport. Other than that they need to be passed down in sctp_xmit, flow4/6 also needs to set them before looking up route in get_dst. Note that it uses '& 0x100000' to check if flowlabel is set and '& 0x1' (tos 1st bit is unused) to check if dscp is set by users, so that they could be set to 0 by sockopt in next patch. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15sctp: add basic structures and make chunk function for ifwdtsnXin Long1-0/+17
sctp_ifwdtsn_skip, sctp_ifwdtsn_hdr and sctp_ifwdtsn_chunk are used to define and parse I-FWD TSN chunk format, and sctp_make_ifwdtsn is a function to build the chunk. The I-FORWARD-TSN Chunk Format is defined in section 2.3.1 of RFC8260. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo R. Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-11sctp: add basic structures and make chunk function for idataXin Long1-0/+17
sctp_idatahdr and sctp_idata_chunk are used to define and parse I-DATA chunk format, and sctp_make_idata is a function to build the chunk. The I-DATA Chunk Format is defined in section 2.1 of RFC8260. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-11sctp: add asoc intl_enable negotiation during 4 shakehandsXin Long1-0/+3
asoc intl_enable will be set when local sp strm_interleave is set and there's I-DATA chunk in init and init_ack extensions, as said in section 2.2.1 of RFC8260. asoc intl_enable indicates all data will be sent as I-DATA chunks. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-29sctp: fix some type cast warnings introduced since very beginningXin Long1-1/+1
These warnings were found by running 'make C=2 M=net/sctp/'. They are there since very beginning. Note after this patch, there still one warning left in sctp_outq_flush(): sctp_chunk_fail(chunk, SCTP_ERROR_INV_STRM) Since it has been moved to sctp_stream_outq_migrate on net-next, to avoid the extra job when merging net-next to net, I will post the fix for it after the merging is done. Reported-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-29sctp: fix some type cast warnings introduced by stream reconfXin Long1-16/+16
These warnings were found by running 'make C=2 M=net/sctp/'. They are introduced by not aware of Endian when coding stream reconf patches. Since commit c0d8bab6ae51 ("sctp: add get and set sockopt for reconf_enable") enabled stream reconf feature for users, the Fixes tag below would use it. Fixes: c0d8bab6ae51 ("sctp: add get and set sockopt for reconf_enable") Reported-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_auth_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_auth_chunk_t, and replace with struct sctp_auth_chunk in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_authhdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_authhdr_t, and replace with struct sctp_authhdr in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_addip_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_addip_chunk_t, and replace with struct sctp_addip_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_addiphdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_addiphdr_t, and replace with struct sctp_addiphdr in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_addip_param_tXin Long1-4/+4
This patch is to remove the typedef sctp_addip_param_t, and replace with struct sctp_addip_param in the places where it's using this typedef. It is to use sizeof(variable) instead of sizeof(type), and also fix some indent problems. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_cwr_chunk_tXin Long1-5/+0
Remove this typedef including the struct, there is even no places using it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_cwrhdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_cwrhdr_t, and replace with struct sctp_cwrhdr in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_ecne_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_ecne_chunk_t, and replace with struct sctp_ecne_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_ecnehdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_ecnehdr_t, and replace with struct sctp_ecnehdr in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_error_tXin Long1-2/+2
This patch is to remove the typedef sctp_error_t, and replace with enum sctp_error in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_operr_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_operr_chunk_t, and replace with struct sctp_operr_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_errhdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_errhdr_t, and replace with struct sctp_errhdr in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: fix the name of struct sctp_shutdown_chunk_tXin Long1-1/+1
This patch is to fix the name of struct sctp_shutdown_chunk_t , replace with struct sctp_initack_chunk in the places where it's using it. It is also to fix some indent problem. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03sctp: remove the typedef sctp_shutdownhdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_shutdownhdr_t, and replace with struct sctp_shutdownhdr in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_abort_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_abort_chunk_t, and replace with struct sctp_abort_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_heartbeat_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_heartbeat_chunk_t, and replace with struct sctp_heartbeat_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_heartbeathdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_heartbeathdr_t, and replace with struct sctp_heartbeathdr in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_sack_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_sack_chunk_t, and replace with struct sctp_sack_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_sackhdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_sackhdr_t, and replace with struct sctp_sackhdr in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_sack_variable_tXin Long1-3/+3
This patch is to remove the typedef sctp_sack_variable_t, and replace with union sctp_sack_variable in the places where it's using this typedef. It is also to fix some indents in sctp_acked(). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_dup_tsn_tXin Long1-3/+1
This patch is to remove the typedef sctp_dup_tsn_t, and replace with __be32 in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_gap_ack_block_tXin Long1-4/+4
This patch is to remove the typedef sctp_gap_ack_block_t, and replace with struct sctp_gap_ack_block in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_unrecognized_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_unrecognized_param_t, and replace with struct sctp_unrecognized_param in the places where it's using this typedef. It is also to fix some indents in sctp_sf_do_unexpected_init() and sctp_sf_do_5_1B_init(). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_cookie_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_cookie_param_t, and replace with struct sctp_cookie_param in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-25sctp: remove the typedef sctp_initack_chunk_tXin Long1-1/+4
This patch is to remove the typedef sctp_initack_chunk_t, and replace with struct sctp_initack_chunk in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_hmac_algo_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_hmac_algo_param_t, and replace with struct sctp_hmac_algo_param in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_chunks_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_chunks_param_t, and replace with struct sctp_chunks_param in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_random_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_random_param_t, and replace with struct sctp_random_param in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_supported_ext_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_supported_ext_param_t, and replace with struct sctp_supported_ext_param in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_adaptation_ind_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_adaptation_ind_param_t, and replace with struct sctp_adaptation_ind_param in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove struct sctp_ecn_capable_paramXin Long1-5/+0
Remove it, there is even no places using it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_supported_addrs_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_supported_addrs_param_t, and replace with struct sctp_supported_addrs_param in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_hostname_param_tXin Long1-2/+2
Remove this typedef, there is even no places using it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_cookie_preserve_param_tXin Long1-3/+3
This patch is to remove the typedef sctp_cookie_preserve_param_t, and replace with struct sctp_cookie_preserve_param in the places where it's using this typedef. It is also to fix some indents in sctp_sf_do_5_2_6_stale(). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_ipv6addr_param_tXin Long1-2/+2
This patch is to remove the typedef sctp_ipv6addr_param_t, and replace with struct sctp_ipv6addr_param in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-17sctp: remove the typedef sctp_ipv4addr_param_tXin Long1-3/+3
This patch is to remove the typedef sctp_ipv4addr_param_t, and replace with struct sctp_ipv4addr_param in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_init_chunk_tXin Long1-3/+3
This patch is to remove the typedef sctp_init_chunk_t, and replace with struct sctp_init_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_inithdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_inithdr_t, and replace with struct sctp_inithdr in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_data_chunk_tXin Long1-2/+2
This patch is to remove the typedef sctp_data_chunk_t, and replace with struct sctp_data_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_datahdr_tXin Long1-3/+3
This patch is to remove the typedef sctp_datahdr_t, and replace with struct sctp_datahdr in the places where it's using this typedef. It is also to use izeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>