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Searched refs:subflow (Results 1 – 23 of 23) sorted by relevance

/linux/net/mptcp/
H A Dsubflow.c347 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(sk); in subflow_prep_synack() local
355 mptcp_fastopen_subflow_synack_set_params(subflow, req); in subflow_prep_synack()
414 static bool subflow_thmac_valid(struct mptcp_subflow_context *subflow) in subflow_thmac_valid() argument
419 subflow_generate_hmac(subflow->remote_key, subflow->local_key, in subflow_thmac_valid()
420 subflow->remote_nonce, subflow->local_nonce, in subflow_thmac_valid()
425 subflow, subflow->token, thmac, subflow->thmac); in subflow_thmac_valid()
427 return thmac == subflow->thmac; in subflow_thmac_valid()
432 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); in mptcp_subflow_reset() local
433 struct sock *sk = subflow->conn; in mptcp_subflow_reset()
459 struct mptcp_subflow_context *subflow; in __mptcp_sync_state() local
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H A Doptions.c404 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(sk); in mptcp_syn_options() local
409 subflow->snd_isn = TCP_SKB_CB(skb)->end_seq; in mptcp_syn_options()
410 if (subflow->request_mptcp) { in mptcp_syn_options()
417 subflow->request_mptcp = 0; in mptcp_syn_options()
426 } else if (subflow->request_join) { in mptcp_syn_options()
427 pr_debug("remote_token=%u, nonce=%u\n", subflow->remote_token, in mptcp_syn_options()
428 subflow->local_nonce); in mptcp_syn_options()
430 opts->join_id = subflow->local_id; in mptcp_syn_options()
431 opts->token = subflow->remote_token; in mptcp_syn_options()
432 opts->nonce = subflow->local_nonce; in mptcp_syn_options()
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H A Dpm.c120 struct mptcp_subflow_context *subflow; in mptcp_lookup_subflow_by_saddr() local
124 list_for_each_entry(subflow, list, node) { in mptcp_lookup_subflow_by_saddr()
125 skc = (struct sock_common *)mptcp_subflow_tcp_sock(subflow); in mptcp_lookup_subflow_by_saddr()
186 struct mptcp_subflow_context *subflow, in __mptcp_pm_send_ack() argument
189 struct sock *ssk = mptcp_subflow_tcp_sock(subflow); in __mptcp_pm_send_ack()
198 subflow->send_mp_prio = 1; in __mptcp_pm_send_ack()
199 subflow->request_bkup = backup; in __mptcp_pm_send_ack()
207 struct mptcp_subflow_context *subflow, in mptcp_pm_send_ack() argument
211 __mptcp_pm_send_ack(msk, subflow, prio, backup); in mptcp_pm_send_ack()
215 static bool subflow_in_rm_list(const struct mptcp_subflow_context *subflow, in subflow_in_rm_list() argument
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H A Dprotocol.h605 mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow) in mptcp_subflow_tcp_sock() argument
607 return subflow->tcp_sock; in mptcp_subflow_tcp_sock()
611 mptcp_subflow_ctx_reset(struct mptcp_subflow_context *subflow) in mptcp_subflow_ctx_reset() argument
613 memset(&subflow->reset, 0, sizeof(subflow->reset)); in mptcp_subflow_ctx_reset()
614 subflow->request_mptcp = 1; in mptcp_subflow_ctx_reset()
615 WRITE_ONCE(subflow->local_id, -1); in mptcp_subflow_ctx_reset()
648 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(sk); in mptcp_send_active_reset_reason() local
651 reason = sk_rst_convert_mptcp_reason(subflow->reset_reason); in mptcp_send_active_reset_reason()
676 __mptcp_subflow_lend_fwdmem(struct mptcp_subflow_context *subflow, int size) in __mptcp_subflow_lend_fwdmem() argument
678 int frag = (subflow->lent_mem_frag + size) & (PAGE_SIZE - 1); in __mptcp_subflow_lend_fwdmem()
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H A Dprotocol.c84 * in the fallback case only the current subflow is touching in __mptcp_try_fallback()
105 struct mptcp_subflow_context *subflow; in __mptcp_socket_create() local
116 subflow = mptcp_subflow_ctx(ssock->sk); in __mptcp_socket_create()
117 list_add(&subflow->node, &msk->conn_list); in __mptcp_socket_create()
119 subflow->request_mptcp = 1; in __mptcp_socket_create()
120 subflow->subflow_id = msk->subflow_id++; in __mptcp_socket_create()
122 /* This is the first subflow, always with id 0 */ in __mptcp_socket_create()
123 WRITE_ONCE(subflow->local_id, 0); in __mptcp_socket_create()
130 /* If the MPC handshake is not started, returns the first subflow,
357 struct mptcp_subflow_context *subflow in mptcp_init_skb() local
429 struct mptcp_subflow_context *subflow; mptcp_shutdown_subflows() local
511 mptcp_timeout_from_subflow(const struct mptcp_subflow_context * subflow) mptcp_timeout_from_subflow() argument
521 struct mptcp_subflow_context *subflow; mptcp_set_timeout() local
552 struct mptcp_subflow_context *subflow; mptcp_send_ack() local
584 struct mptcp_subflow_context *subflow; mptcp_cleanup_rbuf() local
657 __mptcp_add_backlog(struct sock * sk,struct mptcp_subflow_context * subflow,struct sk_buff * skb) __mptcp_add_backlog() argument
701 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); __mptcp_move_skbs_from_subflow() local
851 struct mptcp_subflow_context *subflow; __mptcp_error_report() local
884 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); mptcp_data_ready() local
936 struct mptcp_subflow_context *tmp, *subflow; __mptcp_flush_join_list() local
1106 struct mptcp_subflow_context *subflow; mptcp_enter_memory_pressure() local
1425 mptcp_subflow_set_active(struct mptcp_subflow_context * subflow) mptcp_subflow_set_active() argument
1434 mptcp_subflow_active(struct mptcp_subflow_context * subflow) mptcp_subflow_active() argument
1458 struct mptcp_subflow_context *subflow; mptcp_subflow_get_send() local
1628 struct mptcp_subflow_context *subflow; __mptcp_push_pending() local
1697 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); __mptcp_subflow_push_pending() local
1850 struct mptcp_subflow_context *subflow; mptcp_rps_record_subflows() local
2092 struct mptcp_subflow_context *subflow; mptcp_rcv_space_adjust() local
2410 struct mptcp_subflow_context *subflow; mptcp_subflow_get_retrans() local
2488 __mptcp_subflow_disconnect(struct sock * ssk,struct mptcp_subflow_context * subflow,bool fastclosing) __mptcp_subflow_disconnect() argument
2512 __mptcp_close_ssk(struct sock * sk,struct sock * ssk,struct mptcp_subflow_context * subflow,unsigned int flags) __mptcp_close_ssk() argument
2615 mptcp_close_ssk(struct sock * sk,struct sock * ssk,struct mptcp_subflow_context * subflow) mptcp_close_ssk() argument
2655 struct mptcp_subflow_context *subflow, *tmp; __mptcp_close_subflow() local
2691 struct mptcp_subflow_context *subflow, *tmp; mptcp_check_fastclose() local
2742 struct mptcp_subflow_context *subflow; __mptcp_retrans() local
2901 struct mptcp_subflow_context *subflow, *tmp; mptcp_do_fastclose() local
2959 struct mptcp_subflow_context *subflow, *tmp; mptcp_worker() local
3171 struct mptcp_subflow_context *subflow; mptcp_check_send_data_fin() local
3264 struct mptcp_subflow_context *subflow; __mptcp_close() local
3371 struct mptcp_subflow_context *subflow, *tmp; mptcp_destroy_common() local
3507 struct mptcp_subflow_context *subflow; mptcp_sk_clone_init() local
3702 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); mptcp_subflow_process_delegated() local
3752 struct mptcp_subflow_context *subflow; mptcp_finish_connect() local
3801 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); mptcp_finish_join() local
3939 struct mptcp_subflow_context *subflow; mptcp_connect() local
4116 struct mptcp_subflow_context *subflow; mptcp_graft_subflows() local
4199 struct mptcp_subflow_context *subflow; mptcp_stream_accept() local
4549 struct mptcp_subflow_context *subflow; mptcp_napi_poll() local
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H A Dfastopen.c9 void mptcp_fastopen_subflow_synack_set_params(struct mptcp_subflow_context *subflow, in mptcp_fastopen_subflow_synack_set_params() argument
19 if (!subflow) in mptcp_fastopen_subflow_synack_set_params()
22 ssk = subflow->tcp_sock; in mptcp_fastopen_subflow_synack_set_params()
23 sk = subflow->conn; in mptcp_fastopen_subflow_synack_set_params()
26 subflow->is_mptfo = 1; in mptcp_fastopen_subflow_synack_set_params()
36 mptcp_subflow_lend_fwdmem(subflow, skb); in mptcp_fastopen_subflow_synack_set_params()
42 subflow->ssn_offset += skb->len; in mptcp_fastopen_subflow_synack_set_params()
H A Dsockopt.c72 struct mptcp_subflow_context *subflow; in mptcp_sol_socket_sync_intval() local
78 mptcp_for_each_subflow(msk, subflow) { in mptcp_sol_socket_sync_intval()
79 struct sock *ssk = mptcp_subflow_tcp_sock(subflow); in mptcp_sol_socket_sync_intval()
116 subflow->setsockopt_seq = msk->setsockopt_seq; in mptcp_sol_socket_sync_intval()
150 struct mptcp_subflow_context *subflow; in mptcp_setsockopt_sol_socket_tstamp() local
160 mptcp_for_each_subflow(msk, subflow) { in mptcp_setsockopt_sol_socket_tstamp()
161 struct sock *ssk = mptcp_subflow_tcp_sock(subflow); in mptcp_setsockopt_sol_socket_tstamp()
210 struct mptcp_subflow_context *subflow; in mptcp_setsockopt_sol_socket_timestamping() local
236 mptcp_for_each_subflow(msk, subflow) { in mptcp_setsockopt_sol_socket_timestamping()
237 struct sock *ssk = mptcp_subflow_tcp_sock(subflow); in mptcp_setsockopt_sol_socket_timestamping()
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H A Dtoken.c153 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); in mptcp_token_new_connect() local
154 struct mptcp_sock *msk = mptcp_sk(subflow->conn); in mptcp_token_new_connect()
156 struct sock *sk = subflow->conn; in mptcp_token_new_connect()
160 mptcp_crypto_key_gen_sha(&subflow->local_key, &subflow->token, in mptcp_token_new_connect()
161 &subflow->idsn); in mptcp_token_new_connect()
163 bucket = token_bucket(subflow->token); in mptcp_token_new_connect()
165 if (__token_bucket_busy(bucket, subflow->token)) { in mptcp_token_new_connect()
173 ssk, subflow->local_key, subflow->token, subflow->idsn); in mptcp_token_new_connect()
175 WRITE_ONCE(msk->token, subflow->token); in mptcp_token_new_connect()
H A Dsched.c162 void mptcp_subflow_set_scheduled(struct mptcp_subflow_context *subflow, in mptcp_subflow_set_scheduled() argument
165 WRITE_ONCE(subflow->scheduled, scheduled); in mptcp_subflow_set_scheduled()
170 struct mptcp_subflow_context *subflow; in mptcp_sched_get_send() local
185 mptcp_for_each_subflow(msk, subflow) { in mptcp_sched_get_send()
186 if (READ_ONCE(subflow->scheduled)) in mptcp_sched_get_send()
197 struct mptcp_subflow_context *subflow; in mptcp_sched_get_retrans() local
205 mptcp_for_each_subflow(msk, subflow) { in mptcp_sched_get_retrans()
206 if (READ_ONCE(subflow->scheduled)) in mptcp_sched_get_retrans()
H A Dpm_kernel.c101 struct mptcp_subflow_context *subflow; in lookup_subflow_by_daddr() local
104 list_for_each_entry(subflow, list, node) { in lookup_subflow_by_daddr()
105 struct sock *ssk = mptcp_subflow_tcp_sock(subflow); in lookup_subflow_by_daddr()
210 struct mptcp_subflow_context *subflow; in fill_remote_addresses_fullmesh() local
217 mptcp_for_each_subflow(msk, subflow) in fill_remote_addresses_fullmesh()
218 if (READ_ONCE(subflow->local_id) == local->id) in fill_remote_addresses_fullmesh()
219 __set_bit(subflow->remote_id, unavail_id); in fill_remote_addresses_fullmesh()
221 mptcp_for_each_subflow(msk, subflow) { in fill_remote_addresses_fullmesh()
222 ssk = mptcp_subflow_tcp_sock(subflow); in fill_remote_addresses_fullmesh()
224 addrs[i].id = READ_ONCE(subflow->remote_id); in fill_remote_addresses_fullmesh()
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H A Dctrl.c519 struct mptcp_subflow_context *subflow; in mptcp_active_detect_blackhole() local
527 subflow = mptcp_subflow_ctx(ssk); in mptcp_active_detect_blackhole()
530 if (!subflow->request_mptcp) { in mptcp_active_detect_blackhole()
532 subflow->mpc_drop = 0; in mptcp_active_detect_blackhole()
541 subflow->mpc_drop = 1; in mptcp_active_detect_blackhole()
542 mptcp_early_fallback(mptcp_sk(subflow->conn), subflow, in mptcp_active_detect_blackhole()
H A Dpm_userspace.c249 struct mptcp_subflow_context *subflow; in mptcp_userspace_pm_remove_id_zero_address() local
255 mptcp_for_each_subflow(msk, subflow) { in mptcp_userspace_pm_remove_id_zero_address()
256 if (READ_ONCE(subflow->local_id) == 0) { in mptcp_userspace_pm_remove_id_zero_address()
434 struct mptcp_subflow_context *subflow; in mptcp_nl_find_ssk() local
439 mptcp_for_each_subflow(msk, subflow) { in mptcp_nl_find_ssk()
443 ssk = mptcp_subflow_tcp_sock(subflow); in mptcp_nl_find_ssk()
H A DMakefile4 mptcp-y := protocol.o subflow.o options.o token.o crypto.o ctrl.o pm.o diag.o \
H A DKconfig10 subflows in order to utilize multiple network paths. Each subflow
H A Dpm_netlink.c468 struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); in mptcp_event_addr_announced() local
469 struct mptcp_sock *msk = mptcp_sk(subflow->conn); in mptcp_event_addr_announced()
/linux/tools/testing/selftests/net/mptcp/
H A Dmptcp_join.sh1841 local subflow="client"
1855 subflow="server"
1868 print_check "rm subflow ${subflow}"
2114 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2123 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2133 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2142 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2143 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
2152 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
2153 pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
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H A Dpm_netlink.sh151 add_endpoint 10.0.1.2 flags subflow dev lo
157 "2,10.0.1.2,subflow,lo" \
248 add_endpoint 10.0.1.1 flags subflow
250 check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup")" \
253 check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
260 check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow fullmesh")" \
263 check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
266 check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup fullmesh")" \
H A Dsimult_flows.sh90 mptcp_lib_pm_nl_add_endpoint "${ns1}" 10.0.2.1 dev ns1eth2 flags subflow
/linux/tools/testing/selftests/bpf/progs/
H A Dmptcp_subflow.c65 struct mptcp_subflow_context *subflow; in _check_getsockopt_subflow_mark() local
68 mptcp_for_each_subflow(msk, subflow) { in _check_getsockopt_subflow_mark()
71 ssk = mptcp_subflow_tcp_sock(bpf_core_cast(subflow, in _check_getsockopt_subflow_mark()
85 struct mptcp_subflow_context *subflow; in _check_getsockopt_subflow_cc() local
87 mptcp_for_each_subflow(msk, subflow) { in _check_getsockopt_subflow_cc()
91 ssk = mptcp_subflow_tcp_sock(bpf_core_cast(subflow, in _check_getsockopt_subflow_cc()
H A Dmptcp_bpf.h37 mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow) in mptcp_subflow_tcp_sock() argument
39 return subflow->tcp_sock; in mptcp_subflow_tcp_sock()
/linux/include/trace/events/
H A Dmptcp.h26 TP_PROTO(struct mptcp_subflow_context *subflow),
28 TP_ARGS(subflow),
42 __entry->active = mptcp_subflow_active(subflow);
43 __entry->backup = subflow->backup || subflow->request_bkup;
45 if (subflow->tcp_sock && sk_fullsock(subflow->tcp_sock))
46 __entry->free = sk_stream_memory_free(subflow->tcp_sock);
50 ssk = mptcp_subflow_tcp_sock(subflow);
/linux/Documentation/networking/
H A Dmptcp-sysctl.rst26 by the initial subflow if the value is 1. This controls a flag that is
67 unchanged for such time, after the last subflow removal, before
85 socket. In-kernel path management will control subflow
88 API. Userspace path management puts per-MPTCP-connection subflow
102 socket. In-kernel path management will control subflow
105 API. Userspace path management puts per-MPTCP-connection subflow
129 pending outstanding data on a given subflow required to declare it stale.
H A Dmptcp.rst41 (Linux-specific), a *subflow* (or *path*) is created. This *subflow* consists of
45 *option* field of the underlying TCP *subflow*. This field contains, amongst
79 The Packet Scheduler is in charge of selecting which available *subflow(s)* to
127 values per subflow.
151 kernel is in charge of creating subflow sockets: they are TCP sockets where the