diff options
author | glebius <glebius@FreeBSD.org> | 2015-02-19 22:37:01 +0000 |
---|---|---|
committer | glebius <glebius@FreeBSD.org> | 2015-02-19 22:37:01 +0000 |
commit | 4ec4d85cb2fe1baffb382462d48924915ab19366 (patch) | |
tree | 492cbfc9472b4648e73c023a3b6125f35eaa9b1e | |
parent | 6b09d3f1e121bb6b5e29f211220883fe60f99178 (diff) | |
download | FreeBSD-src-4ec4d85cb2fe1baffb382462d48924915ab19366.zip FreeBSD-src-4ec4d85cb2fe1baffb382462d48924915ab19366.tar.gz |
- 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.
-rw-r--r-- | sys/netinet6/in6_var.h | 6 | ||||
-rw-r--r-- | sys/netinet6/mld6.c | 99 | ||||
-rw-r--r-- | sys/netinet6/mld6_var.h | 65 |
3 files changed, 96 insertions, 74 deletions
diff --git a/sys/netinet6/in6_var.h b/sys/netinet6/in6_var.h index 51aa466..7da67bb 100644 --- a/sys/netinet6/in6_var.h +++ b/sys/netinet6/in6_var.h @@ -97,7 +97,7 @@ struct in6_addrlifetime { struct nd_ifinfo; struct scope6_id; struct lltable; -struct mld_ifinfo; +struct mld_ifsoftc; struct in6_ifextra { counter_u64_t *in6_ifstat; @@ -105,7 +105,7 @@ struct in6_ifextra { struct nd_ifinfo *nd_ifinfo; struct scope6_id *scope6_id; struct lltable *lltable; - struct mld_ifinfo *mld_ifinfo; + struct mld_ifsoftc *mld_ifinfo; }; #define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) @@ -646,7 +646,7 @@ struct in6_multi { u_int in6m_timer; /* MLD6 listener report timer */ /* New fields for MLDv2 follow. */ - struct mld_ifinfo *in6m_mli; /* MLD info */ + struct mld_ifsoftc *in6m_mli; /* MLD info */ SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */ struct ip6_msource_tree in6m_srcs; /* tree of sources */ u_long in6m_nsrc; /* # of tree entries */ diff --git a/sys/netinet6/mld6.c b/sys/netinet6/mld6.c index 79e68c9..615fb19 100644 --- a/sys/netinet6/mld6.c +++ b/sys/netinet6/mld6.c @@ -102,33 +102,33 @@ __FBSDID("$FreeBSD$"); #define KTR_MLD KTR_INET6 #endif -static struct mld_ifinfo * +static struct mld_ifsoftc * mli_alloc_locked(struct ifnet *); static void mli_delete_locked(const struct ifnet *); static void mld_dispatch_packet(struct mbuf *); static void mld_dispatch_queue(struct mbufq *, int); -static void mld_final_leave(struct in6_multi *, struct mld_ifinfo *); +static void mld_final_leave(struct in6_multi *, struct mld_ifsoftc *); static void mld_fasttimo_vnet(void); static int mld_handle_state_change(struct in6_multi *, - struct mld_ifinfo *); -static int mld_initial_join(struct in6_multi *, struct mld_ifinfo *, + struct mld_ifsoftc *); +static int mld_initial_join(struct in6_multi *, struct mld_ifsoftc *, const int); #ifdef KTR static char * mld_rec_type_to_str(const int); #endif -static void mld_set_version(struct mld_ifinfo *, const int); +static void mld_set_version(struct mld_ifsoftc *, const int); static void mld_slowtimo_vnet(void); static int mld_v1_input_query(struct ifnet *, const struct ip6_hdr *, /*const*/ struct mld_hdr *); static int mld_v1_input_report(struct ifnet *, const struct ip6_hdr *, /*const*/ struct mld_hdr *); -static void mld_v1_process_group_timer(struct mld_ifinfo *, +static void mld_v1_process_group_timer(struct mld_ifsoftc *, struct in6_multi *); -static void mld_v1_process_querier_timers(struct mld_ifinfo *); +static void mld_v1_process_querier_timers(struct mld_ifsoftc *); static int mld_v1_transmit_report(struct in6_multi *, const int); static void mld_v1_update_group(struct in6_multi *, const int); -static void mld_v2_cancel_link_timers(struct mld_ifinfo *); -static void mld_v2_dispatch_general_query(struct mld_ifinfo *); +static void mld_v2_cancel_link_timers(struct mld_ifsoftc *); +static void mld_v2_dispatch_general_query(struct mld_ifsoftc *); static struct mbuf * mld_v2_encap_report(struct ifnet *, struct mbuf *); static int mld_v2_enqueue_filter_change(struct mbufq *, @@ -140,11 +140,11 @@ static int mld_v2_input_query(struct ifnet *, const struct ip6_hdr *, struct mbuf *, const int, const int); static int mld_v2_merge_state_changes(struct in6_multi *, struct mbufq *); -static void mld_v2_process_group_timers(struct mld_ifinfo *, +static void mld_v2_process_group_timers(struct mld_ifsoftc *, struct mbufq *, struct mbufq *, struct in6_multi *, const int); static int mld_v2_process_group_query(struct in6_multi *, - struct mld_ifinfo *mli, int, struct mbuf *, const int); + struct mld_ifsoftc *mli, int, struct mbuf *, const int); static int sysctl_mld_gsr(SYSCTL_HANDLER_ARGS); static int sysctl_mld_ifinfo(SYSCTL_HANDLER_ARGS); @@ -206,7 +206,7 @@ static MALLOC_DEFINE(M_MLD, "mld", "mld state"); * VIMAGE-wide globals. */ static VNET_DEFINE(struct timeval, mld_gsrdelay) = {10, 0}; -static VNET_DEFINE(LIST_HEAD(, mld_ifinfo), mli_head); +static VNET_DEFINE(LIST_HEAD(, mld_ifsoftc), mli_head); static VNET_DEFINE(int, interface_timers_running6); static VNET_DEFINE(int, state_change_timers_running6); static VNET_DEFINE(int, current_state_timers_running6); @@ -344,7 +344,7 @@ out_locked: } /* - * Expose struct mld_ifinfo to userland, keyed by ifindex. + * Expose struct mld_ifsoftc to userland, keyed by ifindex. * For use by ifmcstat(8). * * SMPng: NOTE: Does an unlocked ifindex space read. @@ -358,7 +358,7 @@ sysctl_mld_ifinfo(SYSCTL_HANDLER_ARGS) int error; u_int namelen; struct ifnet *ifp; - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; name = (int *)arg1; namelen = arg2; @@ -389,8 +389,17 @@ sysctl_mld_ifinfo(SYSCTL_HANDLER_ARGS) LIST_FOREACH(mli, &V_mli_head, mli_link) { if (ifp == mli->mli_ifp) { - error = SYSCTL_OUT(req, mli, - sizeof(struct mld_ifinfo)); + struct mld_ifinfo info; + + info.mli_version = mli->mli_version; + info.mli_v1_timer = mli->mli_v1_timer; + info.mli_v2_timer = mli->mli_v2_timer; + info.mli_flags = mli->mli_flags; + info.mli_rv = mli->mli_rv; + info.mli_qi = mli->mli_qi; + info.mli_qri = mli->mli_qri; + info.mli_uri = mli->mli_uri; + error = SYSCTL_OUT(req, &info, sizeof(info)); break; } } @@ -454,10 +463,10 @@ mld_is_addr_reported(const struct in6_addr *addr) * * SMPng: Normally called with IF_AFDATA_LOCK held. */ -struct mld_ifinfo * +struct mld_ifsoftc * mld_domifattach(struct ifnet *ifp) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; CTR3(KTR_MLD, "%s: called for ifp %p(%s)", __func__, ifp, if_name(ifp)); @@ -478,14 +487,14 @@ mld_domifattach(struct ifnet *ifp) /* * VIMAGE: assume curvnet set by caller. */ -static struct mld_ifinfo * +static struct mld_ifsoftc * mli_alloc_locked(/*const*/ struct ifnet *ifp) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; MLD_LOCK_ASSERT(); - mli = malloc(sizeof(struct mld_ifinfo), M_MLD, M_NOWAIT|M_ZERO); + mli = malloc(sizeof(struct mld_ifsoftc), M_MLD, M_NOWAIT|M_ZERO); if (mli == NULL) goto out; @@ -501,7 +510,7 @@ mli_alloc_locked(/*const*/ struct ifnet *ifp) LIST_INSERT_HEAD(&V_mli_head, mli, mli_link); - CTR2(KTR_MLD, "allocate mld_ifinfo for ifp %p(%s)", + CTR2(KTR_MLD, "allocate mld_ifsoftc for ifp %p(%s)", ifp, if_name(ifp)); out: @@ -522,7 +531,7 @@ out: void mld_ifdetach(struct ifnet *ifp) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; struct ifmultiaddr *ifma; struct in6_multi *inm, *tinm; @@ -578,9 +587,9 @@ mld_domifdetach(struct ifnet *ifp) static void mli_delete_locked(const struct ifnet *ifp) { - struct mld_ifinfo *mli, *tmli; + struct mld_ifsoftc *mli, *tmli; - CTR3(KTR_MLD, "%s: freeing mld_ifinfo for ifp %p(%s)", + CTR3(KTR_MLD, "%s: freeing mld_ifsoftc for ifp %p(%s)", __func__, ifp, if_name(ifp)); MLD_LOCK_ASSERT(); @@ -603,7 +612,7 @@ mli_delete_locked(const struct ifnet *ifp) } } #ifdef INVARIANTS - panic("%s: mld_ifinfo not found for ifp %p\n", __func__, ifp); + panic("%s: mld_ifsoftc not found for ifp %p\n", __func__, ifp); #endif } @@ -619,7 +628,7 @@ mld_v1_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6, /*const*/ struct mld_hdr *mld) { struct ifmultiaddr *ifma; - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; struct in6_multi *inm; int is_general_query; uint16_t timer; @@ -678,7 +687,7 @@ mld_v1_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6, * Switch to MLDv1 host compatibility mode. */ mli = MLD_IFINFO(ifp); - KASSERT(mli != NULL, ("%s: no mld_ifinfo for ifp %p", __func__, ifp)); + KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp)); mld_set_version(mli, MLD_VERSION_1); timer = (ntohs(mld->mld_maxdelay) * PR_FASTHZ) / MLD_TIMER_SCALE; @@ -795,7 +804,7 @@ static int mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6, struct mbuf *m, const int off, const int icmp6len) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; struct mldv2_query *mld; struct in6_multi *inm; uint32_t maxdelay, nsrc, qqi; @@ -877,7 +886,7 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6, MLD_LOCK(); mli = MLD_IFINFO(ifp); - KASSERT(mli != NULL, ("%s: no mld_ifinfo for ifp %p", __func__, ifp)); + KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp)); /* * Discard the v2 query if we're in Compatibility Mode. @@ -967,7 +976,7 @@ out_locked: * Return <0 if any error occured. Currently this is ignored. */ static int -mld_v2_process_group_query(struct in6_multi *inm, struct mld_ifinfo *mli, +mld_v2_process_group_query(struct in6_multi *inm, struct mld_ifsoftc *mli, int timer, struct mbuf *m0, const int off) { struct mldv2_query *mld; @@ -1171,7 +1180,7 @@ mld_v1_input_report(struct ifnet *ifp, const struct ip6_hdr *ip6, */ inm = in6m_lookup_locked(ifp, &mld->mld_addr); if (inm != NULL) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; mli = inm->in6m_mli; KASSERT(mli != NULL, @@ -1321,7 +1330,7 @@ mld_fasttimo_vnet(void) struct mbufq scq; /* State-change packets */ struct mbufq qrq; /* Query response packets */ struct ifnet *ifp; - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; struct ifmultiaddr *ifma; struct in6_multi *inm, *tinm; int uri_fasthz; @@ -1446,7 +1455,7 @@ out_locked: * Will update the global pending timer flags. */ static void -mld_v1_process_group_timer(struct mld_ifinfo *mli, struct in6_multi *inm) +mld_v1_process_group_timer(struct mld_ifsoftc *mli, struct in6_multi *inm) { int report_timer_expired; @@ -1490,7 +1499,7 @@ mld_v1_process_group_timer(struct mld_ifinfo *mli, struct in6_multi *inm) * Note: Unlocked read from mli. */ static void -mld_v2_process_group_timers(struct mld_ifinfo *mli, +mld_v2_process_group_timers(struct mld_ifsoftc *mli, struct mbufq *qrq, struct mbufq *scq, struct in6_multi *inm, const int uri_fasthz) { @@ -1611,7 +1620,7 @@ mld_v2_process_group_timers(struct mld_ifinfo *mli, * as per Section 9.12. */ static void -mld_set_version(struct mld_ifinfo *mli, const int version) +mld_set_version(struct mld_ifsoftc *mli, const int version) { int old_version_timer; @@ -1641,7 +1650,7 @@ mld_set_version(struct mld_ifinfo *mli, const int version) * joined on it; state-change, general-query, and group-query timers. */ static void -mld_v2_cancel_link_timers(struct mld_ifinfo *mli) +mld_v2_cancel_link_timers(struct mld_ifsoftc *mli) { struct ifmultiaddr *ifma; struct ifnet *ifp; @@ -1734,7 +1743,7 @@ mld_slowtimo(void) static void mld_slowtimo_vnet(void) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; MLD_LOCK(); @@ -1750,7 +1759,7 @@ mld_slowtimo_vnet(void) * See Section 9.12 of RFC 3810. */ static void -mld_v1_process_querier_timers(struct mld_ifinfo *mli) +mld_v1_process_querier_timers(struct mld_ifsoftc *mli) { MLD_LOCK_ASSERT(); @@ -1866,7 +1875,7 @@ mld_v1_transmit_report(struct in6_multi *in6m, const int type) int mld_change_state(struct in6_multi *inm, const int delay) { - struct mld_ifinfo *mli; + struct mld_ifsoftc *mli; struct ifnet *ifp; int error; @@ -1891,7 +1900,7 @@ mld_change_state(struct in6_multi *inm, const int delay) MLD_LOCK(); mli = MLD_IFINFO(ifp); - KASSERT(mli != NULL, ("%s: no mld_ifinfo for ifp %p", __func__, ifp)); + KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp)); /* * If we detect a state transition to or from MCAST_UNDEFINED @@ -1934,7 +1943,7 @@ out_locked: * initial state change for delay ticks (in units of PR_FASTHZ). */ static int -mld_initial_join(struct in6_multi *inm, struct mld_ifinfo *mli, +mld_initial_join(struct in6_multi *inm, struct mld_ifsoftc *mli, const int delay) { struct ifnet *ifp; @@ -2083,7 +2092,7 @@ mld_initial_join(struct in6_multi *inm, struct mld_ifinfo *mli, * Issue an intermediate state change during the life-cycle. */ static int -mld_handle_state_change(struct in6_multi *inm, struct mld_ifinfo *mli) +mld_handle_state_change(struct in6_multi *inm, struct mld_ifsoftc *mli) { struct ifnet *ifp; int retval; @@ -2147,7 +2156,7 @@ mld_handle_state_change(struct in6_multi *inm, struct mld_ifinfo *mli) * to INCLUDE {} for immediate transmission. */ static void -mld_final_leave(struct in6_multi *inm, struct mld_ifinfo *mli) +mld_final_leave(struct in6_multi *inm, struct mld_ifsoftc *mli) { int syncstates; #ifdef KTR @@ -2963,7 +2972,7 @@ mld_v2_merge_state_changes(struct in6_multi *inm, struct mbufq *scq) * Respond to a pending MLDv2 General Query. */ static void -mld_v2_dispatch_general_query(struct mld_ifinfo *mli) +mld_v2_dispatch_general_query(struct mld_ifsoftc *mli) { struct ifmultiaddr *ifma; struct ifnet *ifp; diff --git a/sys/netinet6/mld6_var.h b/sys/netinet6/mld6_var.h index a4e001c..be7e903 100644 --- a/sys/netinet6/mld6_var.h +++ b/sys/netinet6/mld6_var.h @@ -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. */ @@ -129,6 +104,44 @@ struct mld_ifinfo { 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. * VIMAGE: The lock could be pushed to per-VIMAGE granularity in future. @@ -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); |