From: Xin Long <lucien.xin@gmail.com> To: network dev <netdev@vger.kernel.org>, linux-sctp@vger.kernel.org Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>, Neil Horman <nhorman@tuxdriver.com>, Michael Tuexen <tuexen@fh-muenster.de>, davem@davemloft.net Subject: [PATCHv2 net-next 15/17] sctp: add the error cause for new encapsulation port restart Date: Thu, 08 Oct 2020 09:48:11 +0000 [thread overview] Message-ID: <8815067eea44ffd7274b0038e48c2618c2e77916.1602150362.git.lucien.xin@gmail.com> (raw) In-Reply-To: <5c0e9cf835f54c11f7e3014cab926bf10a47298d.1602150362.git.lucien.xin@gmail.com> 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. Signed-off-by: Xin Long <lucien.xin@gmail.com> --- include/linux/sctp.h | 20 ++++++++++++++++++++ include/net/sctp/sm.h | 3 +++ net/sctp/sm_make_chunk.c | 20 ++++++++++++++++++++ 3 files changed, 43 insertions(+) diff --git a/include/linux/sctp.h b/include/linux/sctp.h index 7673123..bb19265 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -482,11 +482,13 @@ enum sctp_error { * 11 Restart of an association with new addresses * 12 User Initiated Abort * 13 Protocol Violation + * 14 Restart of an Association with New Encapsulation Port */ SCTP_ERROR_RESTART = cpu_to_be16(0x0b), SCTP_ERROR_USER_ABORT = cpu_to_be16(0x0c), SCTP_ERROR_PROTO_VIOLATION = cpu_to_be16(0x0d), + SCTP_ERROR_NEW_ENCAP_PORT = cpu_to_be16(0x0e), /* ADDIP Section 3.3 New Error Causes * @@ -793,4 +795,22 @@ enum { SCTP_FLOWLABEL_VAL_MASK = 0xfffff }; +/* UDP Encapsulation + * draft-tuexen-tsvwg-sctp-udp-encaps-cons-03.html#section-4-4 + * + * The error cause indicating an "Restart of an Association with + * New Encapsulation Port" + * + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Cause Code = 14 | Cause Length = 8 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Current Encapsulation Port | New Encapsulation Port | + * +-------------------------------+-------------------------------+ + */ +struct sctp_new_encap_port_hdr { + __be16 cur_port; + __be16 new_port; +}; + #endif /* __LINUX_SCTP_H__ */ diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h index a499341..fd223c9 100644 --- a/include/net/sctp/sm.h +++ b/include/net/sctp/sm.h @@ -221,6 +221,9 @@ struct sctp_chunk *sctp_make_violation_paramlen( struct sctp_chunk *sctp_make_violation_max_retrans( const struct sctp_association *asoc, const struct sctp_chunk *chunk); +struct sctp_chunk *sctp_make_new_encap_port( + const struct sctp_association *asoc, + const struct sctp_chunk *chunk); struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc, const struct sctp_transport *transport); struct sctp_chunk *sctp_make_heartbeat_ack(const struct sctp_association *asoc, diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 21d0ff1..3bf1399 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -1142,6 +1142,26 @@ struct sctp_chunk *sctp_make_violation_max_retrans( return retval; } +struct sctp_chunk *sctp_make_new_encap_port(const struct sctp_association *asoc, + const struct sctp_chunk *chunk) +{ + struct sctp_new_encap_port_hdr nep; + struct sctp_chunk *retval; + + retval = sctp_make_abort(asoc, chunk, + sizeof(struct sctp_errhdr) + sizeof(nep)); + if (!retval) + goto nodata; + + sctp_init_cause(retval, SCTP_ERROR_NEW_ENCAP_PORT, sizeof(nep)); + nep.cur_port = htons(SCTP_INPUT_CB(chunk->skb)->encap_port); + nep.new_port = htons(chunk->transport->encap_port); + sctp_addto_chunk(retval, sizeof(nep), &nep); + +nodata: + return retval; +} + /* Make a HEARTBEAT chunk. */ struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc, const struct sctp_transport *transport) -- 2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: Xin Long <lucien.xin@gmail.com> To: network dev <netdev@vger.kernel.org>, linux-sctp@vger.kernel.org Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>, Neil Horman <nhorman@tuxdriver.com>, Michael Tuexen <tuexen@fh-muenster.de>, davem@davemloft.net Subject: [PATCHv2 net-next 15/17] sctp: add the error cause for new encapsulation port restart Date: Thu, 8 Oct 2020 17:48:11 +0800 [thread overview] Message-ID: <8815067eea44ffd7274b0038e48c2618c2e77916.1602150362.git.lucien.xin@gmail.com> (raw) Message-ID: <20201008094811.UPvwRTUGonvm-VjlsZm47hioegi8fU0HjrlcTRfgSA8@z> (raw) In-Reply-To: <5c0e9cf835f54c11f7e3014cab926bf10a47298d.1602150362.git.lucien.xin@gmail.com> In-Reply-To: <cover.1602150362.git.lucien.xin@gmail.com> 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. Signed-off-by: Xin Long <lucien.xin@gmail.com> --- include/linux/sctp.h | 20 ++++++++++++++++++++ include/net/sctp/sm.h | 3 +++ net/sctp/sm_make_chunk.c | 20 ++++++++++++++++++++ 3 files changed, 43 insertions(+) diff --git a/include/linux/sctp.h b/include/linux/sctp.h index 7673123..bb19265 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -482,11 +482,13 @@ enum sctp_error { * 11 Restart of an association with new addresses * 12 User Initiated Abort * 13 Protocol Violation + * 14 Restart of an Association with New Encapsulation Port */ SCTP_ERROR_RESTART = cpu_to_be16(0x0b), SCTP_ERROR_USER_ABORT = cpu_to_be16(0x0c), SCTP_ERROR_PROTO_VIOLATION = cpu_to_be16(0x0d), + SCTP_ERROR_NEW_ENCAP_PORT = cpu_to_be16(0x0e), /* ADDIP Section 3.3 New Error Causes * @@ -793,4 +795,22 @@ enum { SCTP_FLOWLABEL_VAL_MASK = 0xfffff }; +/* UDP Encapsulation + * draft-tuexen-tsvwg-sctp-udp-encaps-cons-03.html#section-4-4 + * + * The error cause indicating an "Restart of an Association with + * New Encapsulation Port" + * + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Cause Code = 14 | Cause Length = 8 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Current Encapsulation Port | New Encapsulation Port | + * +-------------------------------+-------------------------------+ + */ +struct sctp_new_encap_port_hdr { + __be16 cur_port; + __be16 new_port; +}; + #endif /* __LINUX_SCTP_H__ */ diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h index a499341..fd223c9 100644 --- a/include/net/sctp/sm.h +++ b/include/net/sctp/sm.h @@ -221,6 +221,9 @@ struct sctp_chunk *sctp_make_violation_paramlen( struct sctp_chunk *sctp_make_violation_max_retrans( const struct sctp_association *asoc, const struct sctp_chunk *chunk); +struct sctp_chunk *sctp_make_new_encap_port( + const struct sctp_association *asoc, + const struct sctp_chunk *chunk); struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc, const struct sctp_transport *transport); struct sctp_chunk *sctp_make_heartbeat_ack(const struct sctp_association *asoc, diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 21d0ff1..3bf1399 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -1142,6 +1142,26 @@ struct sctp_chunk *sctp_make_violation_max_retrans( return retval; } +struct sctp_chunk *sctp_make_new_encap_port(const struct sctp_association *asoc, + const struct sctp_chunk *chunk) +{ + struct sctp_new_encap_port_hdr nep; + struct sctp_chunk *retval; + + retval = sctp_make_abort(asoc, chunk, + sizeof(struct sctp_errhdr) + sizeof(nep)); + if (!retval) + goto nodata; + + sctp_init_cause(retval, SCTP_ERROR_NEW_ENCAP_PORT, sizeof(nep)); + nep.cur_port = htons(SCTP_INPUT_CB(chunk->skb)->encap_port); + nep.new_port = htons(chunk->transport->encap_port); + sctp_addto_chunk(retval, sizeof(nep), &nep); + +nodata: + return retval; +} + /* Make a HEARTBEAT chunk. */ struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc, const struct sctp_transport *transport) -- 2.1.0
next prev parent reply other threads:[~2020-10-08 9:48 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-08 9:47 [PATCHv2 net-next 00/17] sctp: Implement RFC6951: UDP Encapsulation of SCTP Xin Long 2020-10-08 9:47 ` Xin Long 2020-10-08 9:47 ` [PATCHv2 net-next 01/17] udp: check udp sock encap_type in __udp_lib_err Xin Long 2020-10-08 9:47 ` Xin Long 2020-10-08 9:47 ` [PATCHv2 net-next 02/17] udp6: move the mss check after udp gso tunnel processing Xin Long 2020-10-08 9:47 ` Xin Long 2020-10-08 9:47 ` [PATCHv2 net-next 03/17] udp: do checksum properly in skb_udp_tunnel_segment Xin Long 2020-10-08 9:47 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 04/17] udp: support sctp over udp " Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 05/17] sctp: create udp4 sock and add its encap_rcv Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 06/17] sctp: create udp6 sock and set " Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 07/17] sctp: add encap_err_lookup for udp encap socks Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 08/17] sctp: add encap_port for netns sock asoc and transport Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 09/17] sctp: add SCTP_REMOTE_UDP_ENCAPS_PORT sockopt Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 10/17] sctp: allow changing transport encap_port by peer packets Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 11/17] sctp: add udphdr to overhead when udp_port is set Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 12/17] sctp: call sk_setup_caps in sctp_packet_transmit instead Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 13/17] sctp: support for sending packet over udp4 sock Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 14/17] sctp: support for sending packet over udp6 sock Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` Xin Long [this message] 2020-10-08 9:48 ` [PATCHv2 net-next 15/17] sctp: add the error cause for new encapsulation port restart Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 16/17] sctp: handle the init chunk matching an existing asoc Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 9:48 ` [PATCHv2 net-next 17/17] sctp: enable udp tunneling socks Xin Long 2020-10-08 9:48 ` Xin Long 2020-10-08 15:46 ` kernel test robot 2020-10-08 15:46 ` kernel test robot 2020-10-09 2:02 ` Xin Long 2020-10-09 2:02 ` Xin Long 2020-10-08 14:33 ` [PATCHv2 net-next 15/17] sctp: add the error cause for new encapsulation port restart kernel test robot 2020-10-08 14:33 ` kernel test robot 2020-10-08 13:10 ` [PATCHv2 net-next 09/17] sctp: add SCTP_REMOTE_UDP_ENCAPS_PORT sockopt kernel test robot 2020-10-08 13:10 ` kernel test robot 2020-10-08 21:18 ` [PATCHv2 net-next 06/17] sctp: create udp6 sock and set its encap_rcv kernel test robot 2020-10-08 21:18 ` kernel test robot 2020-10-09 1:59 ` Xin Long 2020-10-09 1:59 ` Xin Long 2020-10-08 18:29 ` [PATCHv2 net-next 05/17] sctp: create udp4 sock and add " kernel test robot 2020-10-08 18:29 ` kernel test robot 2020-10-09 1:59 ` Xin Long 2020-10-09 1:59 ` Xin Long 2020-10-08 10:01 ` [PATCHv2 net-next 04/17] udp: support sctp over udp in skb_udp_tunnel_segment Xin Long 2020-10-08 10:01 ` Xin Long 2020-10-08 10:01 ` [PATCHv2 net-next 03/17] udp: do checksum properly " Xin Long 2020-10-08 10:01 ` Xin Long 2020-10-08 12:44 ` [PATCHv2 net-next 02/17] udp6: move the mss check after udp gso tunnel processing Willem de Bruijn 2020-10-08 12:44 ` Willem de Bruijn 2020-10-09 1:48 ` Xin Long 2020-10-09 1:48 ` Xin Long 2020-10-09 13:59 ` Willem de Bruijn 2020-10-09 13:59 ` Willem de Bruijn
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