Date: Fri, 10 Feb 2012 19:19:15 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r231407 - stable/8/sys/netinet Message-ID: <201202101919.q1AJJFE6089560@svn.freebsd.org>
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Author: tuexen Date: Fri Feb 10 19:19:15 2012 New Revision: 231407 URL: http://svn.freebsd.org/changeset/base/231407 Log: MFC r218235: Make sure that changing the ECN sysctl does not affect exisiting associations and endpoints. Modified: stable/8/sys/netinet/sctp_input.c stable/8/sys/netinet/sctp_output.c stable/8/sys/netinet/sctp_pcb.c stable/8/sys/netinet/sctp_pcb.h stable/8/sys/netinet/sctp_peeloff.c stable/8/sys/netinet/sctputil.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/boot/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/e1000/ (props changed) Modified: stable/8/sys/netinet/sctp_input.c ============================================================================== --- stable/8/sys/netinet/sctp_input.c Fri Feb 10 19:17:14 2012 (r231406) +++ stable/8/sys/netinet/sctp_input.c Fri Feb 10 19:19:15 2012 (r231407) @@ -2721,6 +2721,7 @@ sctp_handle_cookie_echo(struct mbuf *m, inp->sctp_socket = so; inp->sctp_frag_point = (*inp_p)->sctp_frag_point; inp->sctp_cmt_on_off = (*inp_p)->sctp_cmt_on_off; + inp->sctp_ecn_enable = (*inp_p)->sctp_ecn_enable; inp->partial_delivery_point = (*inp_p)->partial_delivery_point; inp->sctp_context = (*inp_p)->sctp_context; inp->inp_starting_point_for_iterator = NULL; @@ -5616,7 +5617,8 @@ sctp_common_input_processing(struct mbuf */ } /* take care of ecn */ - if (stcb->asoc.ecn_allowed && ((ecn_bits & SCTP_CE_BITS) == SCTP_CE_BITS)) { + if ((stcb->asoc.ecn_allowed == 1) && + ((ecn_bits & SCTP_CE_BITS) == SCTP_CE_BITS)) { /* Yep, we need to add a ECNE */ sctp_send_ecn_echo(stcb, net, high_tsn); } Modified: stable/8/sys/netinet/sctp_output.c ============================================================================== --- stable/8/sys/netinet/sctp_output.c Fri Feb 10 19:17:14 2012 (r231406) +++ stable/8/sys/netinet/sctp_output.c Fri Feb 10 19:19:15 2012 (r231407) @@ -3392,10 +3392,11 @@ static uint8_t sctp_get_ect(struct sctp_tcb *stcb, struct sctp_tmit_chunk *chk) { - if (SCTP_BASE_SYSCTL(sctp_ecn_enable) == 0) + if ((stcb != NULL) && (stcb->asoc.ecn_allowed == 1)) { + return (SCTP_ECT0_BIT); + } else { return (0); - - return (SCTP_ECT0_BIT); + } } static int @@ -3502,17 +3503,9 @@ sctp_lowlevel_chunk_output(struct sctp_i ip->ip_ttl = inp->ip_inp.inp.inp_ip_ttl; ip->ip_len = packet_length; - if (stcb) { - if ((stcb->asoc.ecn_allowed) && ecn_ok) { - /* Enable ECN */ - ip->ip_tos = ((u_char)(tos_value & 0xfc) | sctp_get_ect(stcb, chk)); - } else { - /* No ECN */ - ip->ip_tos = (u_char)(tos_value & 0xfc); - } - } else { - /* no association at all */ - ip->ip_tos = (tos_value & 0xfc); + ip->ip_tos = tos_value & 0xfc; + if (ecn_ok) { + ip->ip_tos |= sctp_get_ect(stcb, chk); } if (port) { ip->ip_p = IPPROTO_UDP; @@ -3839,18 +3832,11 @@ sctp_lowlevel_chunk_output(struct sctp_i } else { ro = (sctp_route_t *) & net->ro; } - if (stcb != NULL) { - if ((stcb->asoc.ecn_allowed) && ecn_ok) { - /* Enable ECN */ - tosBottom = (((((struct in6pcb *)inp)->in6p_flowinfo & 0x0c) | sctp_get_ect(stcb, chk)) << 4); - } else { - /* No ECN */ - tosBottom = ((((struct in6pcb *)inp)->in6p_flowinfo & 0x0c) << 4); - } - } else { - /* we could get no asoc if it is a O-O-T-B packet */ - tosBottom = ((((struct in6pcb *)inp)->in6p_flowinfo & 0x0c) << 4); + tosBottom = (((struct in6pcb *)inp)->in6p_flowinfo & 0x0c); + if (ecn_ok) { + tosBottom |= sctp_get_ect(stcb, chk); } + tosBottom <<= 4; ip6h->ip6_flow = htonl(((tosTop << 24) | ((tosBottom | flowTop) << 16) | flowBottom)); if (port) { ip6h->ip6_nxt = IPPROTO_UDP; @@ -4247,7 +4233,7 @@ sctp_send_initiate(struct sctp_inpcb *in stcb->asoc.cookie_preserve_req = 0; } /* ECN parameter */ - if (SCTP_BASE_SYSCTL(sctp_ecn_enable) == 1) { + if (stcb->asoc.ecn_allowed == 1) { ecn->ph.param_type = htons(SCTP_ECN_CAPABLE); ecn->ph.param_length = htons(sizeof(*ecn)); SCTP_BUF_LEN(m) += sizeof(*ecn); @@ -5350,7 +5336,8 @@ do_a_abort: ecn = (struct sctp_ecn_supported_param *)((caddr_t)ali + sizeof(*ali)); /* ECN parameter */ - if (SCTP_BASE_SYSCTL(sctp_ecn_enable) == 1) { + if (((asoc != NULL) && (asoc->ecn_allowed == 1)) || + (inp->sctp_ecn_enable == 1)) { ecn->ph.param_type = htons(SCTP_ECN_CAPABLE); ecn->ph.param_length = htons(sizeof(*ecn)); SCTP_BUF_LEN(m) += sizeof(*ecn); Modified: stable/8/sys/netinet/sctp_pcb.c ============================================================================== --- stable/8/sys/netinet/sctp_pcb.c Fri Feb 10 19:17:14 2012 (r231406) +++ stable/8/sys/netinet/sctp_pcb.c Fri Feb 10 19:19:15 2012 (r231407) @@ -2399,6 +2399,7 @@ sctp_inpcb_alloc(struct socket *so, uint inp->partial_delivery_point = SCTP_SB_LIMIT_RCV(so) >> SCTP_PARTIAL_DELIVERY_SHIFT; inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; inp->sctp_cmt_on_off = SCTP_BASE_SYSCTL(sctp_cmt_on_off); + inp->sctp_ecn_enable = SCTP_BASE_SYSCTL(sctp_ecn_enable); /* init the small hash table we use to track asocid <-> tcb */ inp->sctp_asocidhash = SCTP_HASH_INIT(SCTP_STACK_VTAG_HASH_SIZE, &inp->hashasocidmark); if (inp->sctp_asocidhash == NULL) { @@ -5899,6 +5900,7 @@ sctp_load_addresses_from_init(struct sct sctp_key_t *new_key; uint32_t keylen; int got_random = 0, got_hmacs = 0, got_chklist = 0; + uint8_t ecn_allowed; /* First get the destination address setup too. */ memset(&sin, 0, sizeof(sin)); @@ -5959,7 +5961,7 @@ sctp_load_addresses_from_init(struct sct sa = altsa; } /* Turn off ECN until we get through all params */ - stcb->asoc.ecn_allowed = 0; + ecn_allowed = 0; TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { /* mark all addresses that we have currently on the list */ net->dest_state |= SCTP_ADDR_NOT_IN_ASSOC; @@ -6192,7 +6194,7 @@ sctp_load_addresses_from_init(struct sct } } } else if (ptype == SCTP_ECN_CAPABLE) { - stcb->asoc.ecn_allowed = 1; + ecn_allowed = 1; } else if (ptype == SCTP_ULP_ADAPTATION) { if (stcb->asoc.state != SCTP_STATE_OPEN) { struct sctp_adaptation_layer_indication ai, @@ -6431,6 +6433,9 @@ next_param: } } } + if (ecn_allowed == 0) { + stcb->asoc.ecn_allowed = 0; + } /* validate authentication required parameters */ if (got_random && got_hmacs) { stcb->asoc.peer_supports_auth = 1; Modified: stable/8/sys/netinet/sctp_pcb.h ============================================================================== --- stable/8/sys/netinet/sctp_pcb.h Fri Feb 10 19:17:14 2012 (r231406) +++ stable/8/sys/netinet/sctp_pcb.h Fri Feb 10 19:19:15 2012 (r231407) @@ -394,6 +394,7 @@ struct sctp_inpcb { uint32_t partial_delivery_point; uint32_t sctp_context; uint32_t sctp_cmt_on_off; + uint32_t sctp_ecn_enable; struct sctp_nonpad_sndrcvinfo def_send; /*- * These three are here for the sosend_dgram Modified: stable/8/sys/netinet/sctp_peeloff.c ============================================================================== --- stable/8/sys/netinet/sctp_peeloff.c Fri Feb 10 19:17:14 2012 (r231406) +++ stable/8/sys/netinet/sctp_peeloff.c Fri Feb 10 19:19:15 2012 (r231407) @@ -1,5 +1,8 @@ /*- * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2008-2011, by Randall Stewart, rrs@lakerest.net and + * Michael Tuexen, tuexen@fh-muenster.de + * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -113,6 +116,7 @@ sctp_do_peeloff(struct socket *head, str n_inp->sctp_mobility_features = inp->sctp_mobility_features; n_inp->sctp_frag_point = inp->sctp_frag_point; n_inp->sctp_cmt_on_off = inp->sctp_cmt_on_off; + n_inp->sctp_ecn_enable = inp->sctp_ecn_enable; n_inp->partial_delivery_point = inp->partial_delivery_point; n_inp->sctp_context = inp->sctp_context; n_inp->inp_starting_point_for_iterator = NULL; @@ -187,6 +191,7 @@ sctp_get_peeloff(struct socket *head, sc n_inp->sctp_features = inp->sctp_features; n_inp->sctp_frag_point = inp->sctp_frag_point; n_inp->sctp_cmt_on_off = inp->sctp_cmt_on_off; + n_inp->sctp_ecn_enable = inp->sctp_ecn_enable; n_inp->partial_delivery_point = inp->partial_delivery_point; n_inp->sctp_context = inp->sctp_context; n_inp->inp_starting_point_for_iterator = NULL; Modified: stable/8/sys/netinet/sctputil.c ============================================================================== --- stable/8/sys/netinet/sctputil.c Fri Feb 10 19:17:14 2012 (r231406) +++ stable/8/sys/netinet/sctputil.c Fri Feb 10 19:19:15 2012 (r231407) @@ -1,5 +1,8 @@ /*- * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2008-2011, by Randall Stewart, rrs@lakerest.net and + * Michael Tuexen, tuexen@fh-muenster.de + * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -917,6 +920,7 @@ sctp_init_asoc(struct sctp_inpcb *m, str asoc->heart_beat_delay = TICKS_TO_MSEC(m->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); asoc->cookie_life = m->sctp_ep.def_cookie_life; asoc->sctp_cmt_on_off = m->sctp_cmt_on_off; + asoc->ecn_allowed = m->sctp_ecn_enable; asoc->sctp_nr_sack_on_off = (uint8_t) SCTP_BASE_SYSCTL(sctp_nr_sack_on_off); asoc->sctp_cmt_pf = (uint8_t) SCTP_BASE_SYSCTL(sctp_cmt_pf); asoc->sctp_frag_point = m->sctp_frag_point;
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