- Rename 'struct mld_ifinfo' into 'struct mld_ifsoftc', since it really
represents a context. - Preserve name 'struct mld_ifinfo' for a new structure, that will be stable API between userland and kernel. - Make sysctl_mld_ifinfo() return the new 'struct mld_ifinfo', instead of old one, which had a bunch of internal kernel structures in it. Sponsored by: Netflix Sponsored by: Nginx, Inc.
This commit is contained in:
Gleb Smirnoff
parent
0d159406b6
commit
9e62a5a379
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=279027
@ -97,7 +97,7 @@ struct in6_addrlifetime {
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struct nd_ifinfo;
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struct scope6_id;
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struct lltable;
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struct mld_ifinfo;
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struct mld_ifsoftc;
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struct in6_ifextra {
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counter_u64_t *in6_ifstat;
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@ -105,7 +105,7 @@ struct in6_ifextra {
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struct nd_ifinfo *nd_ifinfo;
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struct scope6_id *scope6_id;
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struct lltable *lltable;
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struct mld_ifinfo *mld_ifinfo;
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struct mld_ifsoftc *mld_ifinfo;
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};
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#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
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@ -646,7 +646,7 @@ struct in6_multi {
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u_int in6m_timer; /* MLD6 listener report timer */
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/* New fields for MLDv2 follow. */
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struct mld_ifinfo *in6m_mli; /* MLD info */
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struct mld_ifsoftc *in6m_mli; /* MLD info */
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SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
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struct ip6_msource_tree in6m_srcs; /* tree of sources */
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u_long in6m_nsrc; /* # of tree entries */
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@ -102,33 +102,33 @@ __FBSDID("$FreeBSD$");
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#define KTR_MLD KTR_INET6
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#endif
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static struct mld_ifinfo *
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static struct mld_ifsoftc *
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mli_alloc_locked(struct ifnet *);
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static void mli_delete_locked(const struct ifnet *);
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static void mld_dispatch_packet(struct mbuf *);
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static void mld_dispatch_queue(struct mbufq *, int);
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static void mld_final_leave(struct in6_multi *, struct mld_ifinfo *);
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static void mld_final_leave(struct in6_multi *, struct mld_ifsoftc *);
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static void mld_fasttimo_vnet(void);
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static int mld_handle_state_change(struct in6_multi *,
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struct mld_ifinfo *);
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static int mld_initial_join(struct in6_multi *, struct mld_ifinfo *,
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struct mld_ifsoftc *);
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static int mld_initial_join(struct in6_multi *, struct mld_ifsoftc *,
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const int);
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#ifdef KTR
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static char * mld_rec_type_to_str(const int);
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#endif
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static void mld_set_version(struct mld_ifinfo *, const int);
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static void mld_set_version(struct mld_ifsoftc *, const int);
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static void mld_slowtimo_vnet(void);
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static int mld_v1_input_query(struct ifnet *, const struct ip6_hdr *,
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/*const*/ struct mld_hdr *);
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static int mld_v1_input_report(struct ifnet *, const struct ip6_hdr *,
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/*const*/ struct mld_hdr *);
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static void mld_v1_process_group_timer(struct mld_ifinfo *,
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static void mld_v1_process_group_timer(struct mld_ifsoftc *,
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struct in6_multi *);
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static void mld_v1_process_querier_timers(struct mld_ifinfo *);
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static void mld_v1_process_querier_timers(struct mld_ifsoftc *);
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static int mld_v1_transmit_report(struct in6_multi *, const int);
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static void mld_v1_update_group(struct in6_multi *, const int);
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static void mld_v2_cancel_link_timers(struct mld_ifinfo *);
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static void mld_v2_dispatch_general_query(struct mld_ifinfo *);
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static void mld_v2_cancel_link_timers(struct mld_ifsoftc *);
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static void mld_v2_dispatch_general_query(struct mld_ifsoftc *);
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static struct mbuf *
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mld_v2_encap_report(struct ifnet *, struct mbuf *);
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static int mld_v2_enqueue_filter_change(struct mbufq *,
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@ -140,11 +140,11 @@ static int mld_v2_input_query(struct ifnet *, const struct ip6_hdr *,
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struct mbuf *, const int, const int);
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static int mld_v2_merge_state_changes(struct in6_multi *,
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struct mbufq *);
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static void mld_v2_process_group_timers(struct mld_ifinfo *,
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static void mld_v2_process_group_timers(struct mld_ifsoftc *,
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struct mbufq *, struct mbufq *,
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struct in6_multi *, const int);
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static int mld_v2_process_group_query(struct in6_multi *,
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struct mld_ifinfo *mli, int, struct mbuf *, const int);
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struct mld_ifsoftc *mli, int, struct mbuf *, const int);
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static int sysctl_mld_gsr(SYSCTL_HANDLER_ARGS);
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static int sysctl_mld_ifinfo(SYSCTL_HANDLER_ARGS);
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@ -206,7 +206,7 @@ static MALLOC_DEFINE(M_MLD, "mld", "mld state");
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* VIMAGE-wide globals.
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*/
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static VNET_DEFINE(struct timeval, mld_gsrdelay) = {10, 0};
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static VNET_DEFINE(LIST_HEAD(, mld_ifinfo), mli_head);
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static VNET_DEFINE(LIST_HEAD(, mld_ifsoftc), mli_head);
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static VNET_DEFINE(int, interface_timers_running6);
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static VNET_DEFINE(int, state_change_timers_running6);
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static VNET_DEFINE(int, current_state_timers_running6);
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@ -344,7 +344,7 @@ sysctl_mld_gsr(SYSCTL_HANDLER_ARGS)
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}
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/*
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* Expose struct mld_ifinfo to userland, keyed by ifindex.
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* Expose struct mld_ifsoftc to userland, keyed by ifindex.
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* For use by ifmcstat(8).
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*
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* SMPng: NOTE: Does an unlocked ifindex space read.
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@ -358,7 +358,7 @@ sysctl_mld_ifinfo(SYSCTL_HANDLER_ARGS)
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int error;
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u_int namelen;
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struct ifnet *ifp;
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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name = (int *)arg1;
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namelen = arg2;
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@ -389,8 +389,17 @@ sysctl_mld_ifinfo(SYSCTL_HANDLER_ARGS)
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LIST_FOREACH(mli, &V_mli_head, mli_link) {
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if (ifp == mli->mli_ifp) {
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error = SYSCTL_OUT(req, mli,
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sizeof(struct mld_ifinfo));
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struct mld_ifinfo info;
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info.mli_version = mli->mli_version;
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info.mli_v1_timer = mli->mli_v1_timer;
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info.mli_v2_timer = mli->mli_v2_timer;
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info.mli_flags = mli->mli_flags;
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info.mli_rv = mli->mli_rv;
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info.mli_qi = mli->mli_qi;
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info.mli_qri = mli->mli_qri;
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info.mli_uri = mli->mli_uri;
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error = SYSCTL_OUT(req, &info, sizeof(info));
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break;
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}
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}
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@ -454,10 +463,10 @@ mld_is_addr_reported(const struct in6_addr *addr)
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*
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* SMPng: Normally called with IF_AFDATA_LOCK held.
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*/
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struct mld_ifinfo *
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struct mld_ifsoftc *
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mld_domifattach(struct ifnet *ifp)
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{
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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CTR3(KTR_MLD, "%s: called for ifp %p(%s)",
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__func__, ifp, if_name(ifp));
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@ -478,14 +487,14 @@ mld_domifattach(struct ifnet *ifp)
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/*
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* VIMAGE: assume curvnet set by caller.
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*/
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static struct mld_ifinfo *
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static struct mld_ifsoftc *
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mli_alloc_locked(/*const*/ struct ifnet *ifp)
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{
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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MLD_LOCK_ASSERT();
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mli = malloc(sizeof(struct mld_ifinfo), M_MLD, M_NOWAIT|M_ZERO);
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mli = malloc(sizeof(struct mld_ifsoftc), M_MLD, M_NOWAIT|M_ZERO);
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if (mli == NULL)
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goto out;
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@ -501,7 +510,7 @@ mli_alloc_locked(/*const*/ struct ifnet *ifp)
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LIST_INSERT_HEAD(&V_mli_head, mli, mli_link);
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CTR2(KTR_MLD, "allocate mld_ifinfo for ifp %p(%s)",
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CTR2(KTR_MLD, "allocate mld_ifsoftc for ifp %p(%s)",
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ifp, if_name(ifp));
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out:
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@ -522,7 +531,7 @@ mli_alloc_locked(/*const*/ struct ifnet *ifp)
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void
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mld_ifdetach(struct ifnet *ifp)
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{
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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struct ifmultiaddr *ifma;
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struct in6_multi *inm, *tinm;
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@ -578,9 +587,9 @@ mld_domifdetach(struct ifnet *ifp)
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static void
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mli_delete_locked(const struct ifnet *ifp)
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{
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struct mld_ifinfo *mli, *tmli;
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struct mld_ifsoftc *mli, *tmli;
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CTR3(KTR_MLD, "%s: freeing mld_ifinfo for ifp %p(%s)",
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CTR3(KTR_MLD, "%s: freeing mld_ifsoftc for ifp %p(%s)",
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__func__, ifp, if_name(ifp));
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MLD_LOCK_ASSERT();
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@ -603,7 +612,7 @@ mli_delete_locked(const struct ifnet *ifp)
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}
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}
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#ifdef INVARIANTS
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panic("%s: mld_ifinfo not found for ifp %p\n", __func__, ifp);
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panic("%s: mld_ifsoftc not found for ifp %p\n", __func__, ifp);
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#endif
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}
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@ -619,7 +628,7 @@ mld_v1_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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/*const*/ struct mld_hdr *mld)
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{
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struct ifmultiaddr *ifma;
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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struct in6_multi *inm;
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int is_general_query;
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uint16_t timer;
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@ -678,7 +687,7 @@ mld_v1_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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* Switch to MLDv1 host compatibility mode.
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*/
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mli = MLD_IFINFO(ifp);
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KASSERT(mli != NULL, ("%s: no mld_ifinfo for ifp %p", __func__, ifp));
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KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp));
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mld_set_version(mli, MLD_VERSION_1);
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timer = (ntohs(mld->mld_maxdelay) * PR_FASTHZ) / MLD_TIMER_SCALE;
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@ -795,7 +804,7 @@ static int
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mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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struct mbuf *m, const int off, const int icmp6len)
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{
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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struct mldv2_query *mld;
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struct in6_multi *inm;
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uint32_t maxdelay, nsrc, qqi;
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@ -877,7 +886,7 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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MLD_LOCK();
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mli = MLD_IFINFO(ifp);
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KASSERT(mli != NULL, ("%s: no mld_ifinfo for ifp %p", __func__, ifp));
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KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp));
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/*
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* Discard the v2 query if we're in Compatibility Mode.
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@ -967,7 +976,7 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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* Return <0 if any error occured. Currently this is ignored.
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*/
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static int
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mld_v2_process_group_query(struct in6_multi *inm, struct mld_ifinfo *mli,
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mld_v2_process_group_query(struct in6_multi *inm, struct mld_ifsoftc *mli,
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int timer, struct mbuf *m0, const int off)
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{
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struct mldv2_query *mld;
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@ -1171,7 +1180,7 @@ mld_v1_input_report(struct ifnet *ifp, const struct ip6_hdr *ip6,
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*/
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inm = in6m_lookup_locked(ifp, &mld->mld_addr);
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if (inm != NULL) {
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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mli = inm->in6m_mli;
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KASSERT(mli != NULL,
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@ -1321,7 +1330,7 @@ mld_fasttimo_vnet(void)
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struct mbufq scq; /* State-change packets */
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struct mbufq qrq; /* Query response packets */
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struct ifnet *ifp;
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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struct ifmultiaddr *ifma;
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struct in6_multi *inm, *tinm;
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int uri_fasthz;
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@ -1446,7 +1455,7 @@ mld_fasttimo_vnet(void)
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* Will update the global pending timer flags.
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*/
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static void
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mld_v1_process_group_timer(struct mld_ifinfo *mli, struct in6_multi *inm)
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mld_v1_process_group_timer(struct mld_ifsoftc *mli, struct in6_multi *inm)
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{
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int report_timer_expired;
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@ -1490,7 +1499,7 @@ mld_v1_process_group_timer(struct mld_ifinfo *mli, struct in6_multi *inm)
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* Note: Unlocked read from mli.
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*/
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static void
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mld_v2_process_group_timers(struct mld_ifinfo *mli,
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mld_v2_process_group_timers(struct mld_ifsoftc *mli,
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struct mbufq *qrq, struct mbufq *scq,
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struct in6_multi *inm, const int uri_fasthz)
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{
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@ -1611,7 +1620,7 @@ mld_v2_process_group_timers(struct mld_ifinfo *mli,
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* as per Section 9.12.
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*/
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static void
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mld_set_version(struct mld_ifinfo *mli, const int version)
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mld_set_version(struct mld_ifsoftc *mli, const int version)
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{
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int old_version_timer;
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@ -1641,7 +1650,7 @@ mld_set_version(struct mld_ifinfo *mli, const int version)
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* joined on it; state-change, general-query, and group-query timers.
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*/
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static void
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mld_v2_cancel_link_timers(struct mld_ifinfo *mli)
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mld_v2_cancel_link_timers(struct mld_ifsoftc *mli)
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{
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struct ifmultiaddr *ifma;
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struct ifnet *ifp;
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@ -1734,7 +1743,7 @@ mld_slowtimo(void)
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static void
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mld_slowtimo_vnet(void)
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{
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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MLD_LOCK();
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@ -1750,7 +1759,7 @@ mld_slowtimo_vnet(void)
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* See Section 9.12 of RFC 3810.
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*/
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static void
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mld_v1_process_querier_timers(struct mld_ifinfo *mli)
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mld_v1_process_querier_timers(struct mld_ifsoftc *mli)
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{
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MLD_LOCK_ASSERT();
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@ -1866,7 +1875,7 @@ mld_v1_transmit_report(struct in6_multi *in6m, const int type)
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int
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mld_change_state(struct in6_multi *inm, const int delay)
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{
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struct mld_ifinfo *mli;
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struct mld_ifsoftc *mli;
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struct ifnet *ifp;
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int error;
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@ -1891,7 +1900,7 @@ mld_change_state(struct in6_multi *inm, const int delay)
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MLD_LOCK();
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mli = MLD_IFINFO(ifp);
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KASSERT(mli != NULL, ("%s: no mld_ifinfo for ifp %p", __func__, ifp));
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KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp));
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/*
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* If we detect a state transition to or from MCAST_UNDEFINED
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@ -1934,7 +1943,7 @@ mld_change_state(struct in6_multi *inm, const int delay)
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* initial state change for delay ticks (in units of PR_FASTHZ).
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*/
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static int
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mld_initial_join(struct in6_multi *inm, struct mld_ifinfo *mli,
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mld_initial_join(struct in6_multi *inm, struct mld_ifsoftc *mli,
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const int delay)
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{
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struct ifnet *ifp;
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@ -2083,7 +2092,7 @@ mld_initial_join(struct in6_multi *inm, struct mld_ifinfo *mli,
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* Issue an intermediate state change during the life-cycle.
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*/
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static int
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mld_handle_state_change(struct in6_multi *inm, struct mld_ifinfo *mli)
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mld_handle_state_change(struct in6_multi *inm, struct mld_ifsoftc *mli)
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{
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struct ifnet *ifp;
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int retval;
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@ -2147,7 +2156,7 @@ mld_handle_state_change(struct in6_multi *inm, struct mld_ifinfo *mli)
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* to INCLUDE {} for immediate transmission.
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*/
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static void
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mld_final_leave(struct in6_multi *inm, struct mld_ifinfo *mli)
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mld_final_leave(struct in6_multi *inm, struct mld_ifsoftc *mli)
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{
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int syncstates;
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#ifdef KTR
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@ -2963,7 +2972,7 @@ mld_v2_merge_state_changes(struct in6_multi *inm, struct mbufq *scq)
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* Respond to a pending MLDv2 General Query.
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*/
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static void
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mld_v2_dispatch_general_query(struct mld_ifinfo *mli)
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mld_v2_dispatch_general_query(struct mld_ifsoftc *mli)
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{
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struct ifmultiaddr *ifma;
|
||||
struct ifnet *ifp;
|
||||
|
||||
@ -35,31 +35,6 @@
|
||||
* implementation-specific definitions.
|
||||
*/
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
||||
/*
|
||||
* Per-link MLD state.
|
||||
*/
|
||||
struct mld_ifinfo {
|
||||
LIST_ENTRY(mld_ifinfo) mli_link;
|
||||
struct ifnet *mli_ifp; /* interface this instance belongs to */
|
||||
uint32_t mli_version; /* MLDv1 Host Compatibility Mode */
|
||||
uint32_t mli_v1_timer; /* MLDv1 Querier Present timer (s) */
|
||||
uint32_t mli_v2_timer; /* MLDv2 General Query (interface) timer (s)*/
|
||||
uint32_t mli_flags; /* MLD per-interface flags */
|
||||
uint32_t mli_rv; /* MLDv2 Robustness Variable */
|
||||
uint32_t mli_qi; /* MLDv2 Query Interval (s) */
|
||||
uint32_t mli_qri; /* MLDv2 Query Response Interval (s) */
|
||||
uint32_t mli_uri; /* MLDv2 Unsolicited Report Interval (s) */
|
||||
SLIST_HEAD(,in6_multi) mli_relinmhead; /* released groups */
|
||||
struct mbufq mli_gq; /* queue of general query responses */
|
||||
};
|
||||
#define MLIF_SILENT 0x00000001 /* Do not use MLD on this ifp */
|
||||
#define MLIF_USEALLOW 0x00000002 /* Use ALLOW/BLOCK for joins/leaves */
|
||||
|
||||
#define MLD_RANDOM_DELAY(X) (arc4random() % (X) + 1)
|
||||
#define MLD_MAX_STATE_CHANGES 24 /* Max pending changes per group */
|
||||
|
||||
/*
|
||||
* MLD per-group states.
|
||||
*/
|
||||
@ -128,6 +103,44 @@ struct mld_ifinfo {
|
||||
#define MLD_MTUSPACE (sizeof(struct ip6_hdr) + sizeof(struct mld_raopt) + \
|
||||
sizeof(struct icmp6_hdr))
|
||||
|
||||
/*
|
||||
* Structure returned by net.inet6.mld.ifinfo.
|
||||
*/
|
||||
struct mld_ifinfo {
|
||||
uint32_t mli_version; /* MLDv1 Host Compatibility Mode */
|
||||
uint32_t mli_v1_timer; /* MLDv1 Querier Present timer (s) */
|
||||
uint32_t mli_v2_timer; /* MLDv2 General Query (interface) timer (s)*/
|
||||
uint32_t mli_flags; /* MLD per-interface flags */
|
||||
#define MLIF_SILENT 0x00000001 /* Do not use MLD on this ifp */
|
||||
#define MLIF_USEALLOW 0x00000002 /* Use ALLOW/BLOCK for joins/leaves */
|
||||
uint32_t mli_rv; /* MLDv2 Robustness Variable */
|
||||
uint32_t mli_qi; /* MLDv2 Query Interval (s) */
|
||||
uint32_t mli_qri; /* MLDv2 Query Response Interval (s) */
|
||||
uint32_t mli_uri; /* MLDv2 Unsolicited Report Interval (s) */
|
||||
};
|
||||
|
||||
#ifdef _KERNEL
|
||||
/*
|
||||
* Per-link MLD state.
|
||||
*/
|
||||
struct mld_ifsoftc {
|
||||
LIST_ENTRY(mld_ifsoftc) mli_link;
|
||||
struct ifnet *mli_ifp; /* interface this instance belongs to */
|
||||
uint32_t mli_version; /* MLDv1 Host Compatibility Mode */
|
||||
uint32_t mli_v1_timer; /* MLDv1 Querier Present timer (s) */
|
||||
uint32_t mli_v2_timer; /* MLDv2 General Query (interface) timer (s)*/
|
||||
uint32_t mli_flags; /* MLD per-interface flags */
|
||||
uint32_t mli_rv; /* MLDv2 Robustness Variable */
|
||||
uint32_t mli_qi; /* MLDv2 Query Interval (s) */
|
||||
uint32_t mli_qri; /* MLDv2 Query Response Interval (s) */
|
||||
uint32_t mli_uri; /* MLDv2 Unsolicited Report Interval (s) */
|
||||
SLIST_HEAD(,in6_multi) mli_relinmhead; /* released groups */
|
||||
struct mbufq mli_gq; /* queue of general query responses */
|
||||
};
|
||||
|
||||
#define MLD_RANDOM_DELAY(X) (arc4random() % (X) + 1)
|
||||
#define MLD_MAX_STATE_CHANGES 24 /* Max pending changes per group */
|
||||
|
||||
/*
|
||||
* Subsystem lock macros.
|
||||
* The MLD lock is only taken with MLD. Currently it is system-wide.
|
||||
@ -147,7 +160,7 @@ struct mld_ifinfo {
|
||||
(((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->mld_ifinfo)
|
||||
|
||||
int mld_change_state(struct in6_multi *, const int);
|
||||
struct mld_ifinfo *
|
||||
struct mld_ifsoftc *
|
||||
mld_domifattach(struct ifnet *);
|
||||
void mld_domifdetach(struct ifnet *);
|
||||
void mld_fasttimo(void);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user