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HWMP: ic->raw_xmit didn't always point to correct ni.
This is a code re-write. ic->raw_xmit need a pointer to ieee80211_node for the destination node (da). I have reorganized the code so that a pointer to the da node is searched for in the end & in one place. * Make mesh_find_txnode public to be used by HWMP, renamed to ieee80211_mesh_finx_txnode; * changed the argument from ieee80211_node to ieee80211vap for all hwmp_send_* functions; * removed the 'sa' argument from hwmp_send_* functions as all HWMP frames have the source address equal to vap->iv_myaddr; * Modified hwmp_send_action so that if da is MULTCAST ni=vap->iv_bss otherwise we called ieee80211_mesh_find_txnode. Also no need to hold a reference in this functions if da is not MULTICAST as by finding the node it became referenced in ieee80211_find_txnode; Approved by: adrian (mentor)
This commit is contained in:
Monthadar Al Jaberi
parent
15254d455e
commit
4c4f4aa0f3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=246512
@ -68,8 +68,7 @@ static void hwmp_vattach(struct ieee80211vap *);
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static void hwmp_vdetach(struct ieee80211vap *);
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static int hwmp_newstate(struct ieee80211vap *,
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enum ieee80211_state, int);
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static int hwmp_send_action(struct ieee80211_node *,
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const uint8_t [IEEE80211_ADDR_LEN],
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static int hwmp_send_action(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN],
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uint8_t *, size_t);
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static uint8_t * hwmp_add_meshpreq(uint8_t *,
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@ -86,23 +85,20 @@ static void hwmp_rootmode_rann_cb(void *);
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static void hwmp_recv_preq(struct ieee80211vap *, struct ieee80211_node *,
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const struct ieee80211_frame *,
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const struct ieee80211_meshpreq_ie *);
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static int hwmp_send_preq(struct ieee80211_node *,
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const uint8_t [IEEE80211_ADDR_LEN],
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static int hwmp_send_preq(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN],
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struct ieee80211_meshpreq_ie *,
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struct timeval *, struct timeval *);
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static void hwmp_recv_prep(struct ieee80211vap *, struct ieee80211_node *,
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const struct ieee80211_frame *,
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const struct ieee80211_meshprep_ie *);
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static int hwmp_send_prep(struct ieee80211_node *,
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const uint8_t [IEEE80211_ADDR_LEN],
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static int hwmp_send_prep(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN],
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struct ieee80211_meshprep_ie *);
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static void hwmp_recv_perr(struct ieee80211vap *, struct ieee80211_node *,
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const struct ieee80211_frame *,
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const struct ieee80211_meshperr_ie *);
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static int hwmp_send_perr(struct ieee80211_node *,
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const uint8_t [IEEE80211_ADDR_LEN],
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static int hwmp_send_perr(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN],
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struct ieee80211_meshperr_ie *);
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static void hwmp_senderror(struct ieee80211vap *,
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@ -111,8 +107,7 @@ static void hwmp_senderror(struct ieee80211vap *,
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static void hwmp_recv_rann(struct ieee80211vap *, struct ieee80211_node *,
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const struct ieee80211_frame *,
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const struct ieee80211_meshrann_ie *);
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static int hwmp_send_rann(struct ieee80211_node *,
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const uint8_t [IEEE80211_ADDR_LEN],
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static int hwmp_send_rann(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN],
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struct ieee80211_meshrann_ie *);
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static struct ieee80211_node *
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@ -588,17 +583,30 @@ hwmp_recv_action_meshpath(struct ieee80211_node *ni,
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}
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static int
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hwmp_send_action(struct ieee80211_node *ni,
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const uint8_t sa[IEEE80211_ADDR_LEN],
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hwmp_send_action(struct ieee80211vap *vap,
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const uint8_t da[IEEE80211_ADDR_LEN],
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uint8_t *ie, size_t len)
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{
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struct ieee80211vap *vap = ni->ni_vap;
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struct ieee80211com *ic = ni->ni_ic;
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struct ieee80211_node *ni;
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struct ieee80211com *ic;
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struct ieee80211_bpf_params params;
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struct mbuf *m;
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uint8_t *frm;
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if (IEEE80211_IS_MULTICAST(da)) {
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ni = ieee80211_ref_node(vap->iv_bss);
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#ifdef IEEE80211_DEBUG_REFCNT
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IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
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"ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n",
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__func__, __LINE__,
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ni, ether_sprintf(ni->ni_macaddr),
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ieee80211_node_refcnt(ni)+1);
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#endif
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ieee80211_ref_node(ni);
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}
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else
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ni = ieee80211_mesh_find_txnode(vap, da);
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if (vap->iv_state == IEEE80211_S_CAC) {
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IEEE80211_NOTE(vap, IEEE80211_MSG_OUTPUT, ni,
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"block %s frame in CAC state", "HWMP action");
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@ -607,19 +615,7 @@ hwmp_send_action(struct ieee80211_node *ni,
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}
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KASSERT(ni != NULL, ("null node"));
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/*
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* Hold a reference on the node so it doesn't go away until after
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* the xmit is complete all the way in the driver. On error we
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* will remove our reference.
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*/
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#ifdef IEEE80211_DEBUG_REFCNT
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IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
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"ieee80211_ref_node (%s:%u) %p<%s> refcnt %d\n",
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__func__, __LINE__,
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ni, ether_sprintf(ni->ni_macaddr),
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ieee80211_node_refcnt(ni)+1);
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#endif
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ieee80211_ref_node(ni);
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ic = ni->ni_ic;
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m = ieee80211_getmgtframe(&frm,
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ic->ic_headroom + sizeof(struct ieee80211_frame),
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@ -660,7 +656,7 @@ hwmp_send_action(struct ieee80211_node *ni,
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}
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ieee80211_send_setup(ni, m,
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IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_ACTION,
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IEEE80211_NONQOS_TID, sa, da, sa);
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IEEE80211_NONQOS_TID, vap->iv_myaddr, da, vap->iv_myaddr);
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m->m_flags |= M_ENCAP; /* mark encapsulated */
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IEEE80211_NODE_STAT(ni, tx_mgmt);
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@ -862,8 +858,8 @@ hwmp_rootmode_cb(void *arg)
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IEEE80211_MESHPREQ_TFLAGS_USN;
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PREQ_TSEQ(0) = 0;
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vap->iv_stats.is_hwmp_rootreqs++;
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hwmp_send_preq(vap->iv_bss, vap->iv_myaddr, broadcastaddr, &preq,
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NULL, NULL); /* NB: we enforce rate check ourself */
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/* NB: we enforce rate check ourself */
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hwmp_send_preq(vap, broadcastaddr, &preq, NULL, NULL);
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hwmp_rootmode_setup(vap);
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}
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#undef PREQ_TFLAGS
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@ -896,7 +892,7 @@ hwmp_rootmode_rann_cb(void *arg)
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rann.rann_metric = IEEE80211_MESHLMETRIC_INITIALVAL;
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vap->iv_stats.is_hwmp_rootrann++;
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hwmp_send_rann(vap->iv_bss, vap->iv_myaddr, broadcastaddr, &rann);
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hwmp_send_rann(vap, broadcastaddr, &rann);
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hwmp_rootmode_setup(vap);
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}
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@ -1060,7 +1056,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
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IEEE80211_NOTE(vap, IEEE80211_MSG_HWMP, ni,
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"reply to %6D", preq->preq_origaddr, ":");
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hwmp_send_prep(ni, vap->iv_myaddr, wh->i_addr2, &prep);
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hwmp_send_prep(vap, wh->i_addr2, &prep);
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return;
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}
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/* we may update our proxy information for the orig external */
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@ -1119,8 +1115,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
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IEEE80211_ADDR_COPY(prep.prep_targetaddr,
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vap->iv_myaddr);
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prep.prep_targetseq = ++hs->hs_seq;
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hwmp_send_prep(vap->iv_bss, vap->iv_myaddr,
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rtorig->rt_nexthop, &prep);
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hwmp_send_prep(vap, rtorig->rt_nexthop, &prep);
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}
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}
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@ -1161,8 +1156,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
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IEEE80211_ADDR_COPY(&prep.prep_origaddr,
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preq->preq_origaddr);
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prep.prep_origseq = hrorig->hr_seq;
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hwmp_send_prep(ni, vap->iv_myaddr,
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rtorig->rt_nexthop, &prep);
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hwmp_send_prep(vap, rtorig->rt_nexthop, &prep);
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/*
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* Set TO and unset RF bits because we have
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@ -1181,8 +1175,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
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ppreq.preq_metric += ms->ms_pmetric->mpm_metric(ni);
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/* don't do PREQ ratecheck when we propagate */
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hwmp_send_preq(ni, vap->iv_myaddr, broadcastaddr,
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&ppreq, NULL, NULL);
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hwmp_send_preq(vap, broadcastaddr, &ppreq, NULL, NULL);
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}
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}
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#undef PREQ_TFLAGS
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@ -1190,8 +1183,7 @@ hwmp_recv_preq(struct ieee80211vap *vap, struct ieee80211_node *ni,
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#undef PREQ_TSEQ
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static int
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hwmp_send_preq(struct ieee80211_node *ni,
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const uint8_t sa[IEEE80211_ADDR_LEN],
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hwmp_send_preq(struct ieee80211vap *vap,
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const uint8_t da[IEEE80211_ADDR_LEN],
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struct ieee80211_meshpreq_ie *preq,
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struct timeval *last, struct timeval *minint)
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@ -1220,7 +1212,7 @@ hwmp_send_preq(struct ieee80211_node *ni,
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preq->preq_len = (preq->preq_flags & IEEE80211_MESHPREQ_FLAGS_AE ?
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IEEE80211_MESHPREQ_BASE_SZ_AE : IEEE80211_MESHPREQ_BASE_SZ) +
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preq->preq_tcount * IEEE80211_MESHPREQ_TRGT_SZ;
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return hwmp_send_action(ni, sa, da, (uint8_t *)preq, preq->preq_len+2);
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return hwmp_send_action(vap, da, (uint8_t *)preq, preq->preq_len+2);
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}
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static void
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@ -1354,7 +1346,7 @@ hwmp_recv_prep(struct ieee80211vap *vap, struct ieee80211_node *ni,
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pprep.prep_hopcount += 1;
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pprep.prep_ttl -= 1;
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pprep.prep_metric += ms->ms_pmetric->mpm_metric(ni);
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hwmp_send_prep(ni, vap->iv_myaddr, rtorig->rt_nexthop, &pprep);
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hwmp_send_prep(vap, rtorig->rt_nexthop, &pprep);
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/* precursor list for the Target Mesh STA Address is updated */
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}
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@ -1436,8 +1428,7 @@ hwmp_recv_prep(struct ieee80211vap *vap, struct ieee80211_node *ni,
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}
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static int
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hwmp_send_prep(struct ieee80211_node *ni,
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const uint8_t sa[IEEE80211_ADDR_LEN],
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hwmp_send_prep(struct ieee80211vap *vap,
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const uint8_t da[IEEE80211_ADDR_LEN],
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struct ieee80211_meshprep_ie *prep)
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{
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@ -1455,8 +1446,7 @@ hwmp_send_prep(struct ieee80211_node *ni,
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prep->prep_ie = IEEE80211_ELEMID_MESHPREP;
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prep->prep_len = prep->prep_flags & IEEE80211_MESHPREP_FLAGS_AE ?
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IEEE80211_MESHPREP_BASE_SZ_AE : IEEE80211_MESHPREP_BASE_SZ;
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return hwmp_send_action(ni, sa, da, (uint8_t *)prep,
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prep->prep_len + 2);
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return hwmp_send_action(vap, da, (uint8_t *)prep, prep->prep_len + 2);
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}
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#define PERR_DFLAGS(n) perr.perr_dests[n].dest_flags
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@ -1489,7 +1479,7 @@ hwmp_peerdown(struct ieee80211_node *ni)
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PERR_DRCODE(0) = IEEE80211_REASON_MESH_PERR_DEST_UNREACH;
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/* NB: flush everything passing through peer */
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ieee80211_mesh_rt_flush_peer(vap, ni->ni_macaddr);
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hwmp_send_perr(vap->iv_bss, vap->iv_myaddr, broadcastaddr, &perr);
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hwmp_send_perr(vap, broadcastaddr, &perr);
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}
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#undef PERR_DFLAGS
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#undef PERR_DADDR
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@ -1592,8 +1582,7 @@ hwmp_recv_perr(struct ieee80211vap *vap, struct ieee80211_node *ni,
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"propagate PERR from %6D", wh->i_addr2, ":");
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pperr->perr_ndests = j;
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pperr->perr_ttl--;
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hwmp_send_perr(vap->iv_bss, vap->iv_myaddr, broadcastaddr,
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pperr);
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hwmp_send_perr(vap, broadcastaddr, pperr);
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}
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done:
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if (pperr != NULL)
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@ -1606,12 +1595,11 @@ hwmp_recv_perr(struct ieee80211vap *vap, struct ieee80211_node *ni,
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#undef PERR_DRCODE
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static int
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hwmp_send_perr(struct ieee80211_node *ni,
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const uint8_t sa[IEEE80211_ADDR_LEN],
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hwmp_send_perr(struct ieee80211vap *vap,
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const uint8_t da[IEEE80211_ADDR_LEN],
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struct ieee80211_meshperr_ie *perr)
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{
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struct ieee80211_hwmp_state *hs = ni->ni_vap->iv_hwmp;
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struct ieee80211_hwmp_state *hs = vap->iv_hwmp;
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int i;
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uint8_t length = 0;
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@ -1642,7 +1630,7 @@ hwmp_send_perr(struct ieee80211_node *ni,
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length += IEEE80211_MESHPERR_DEST_SZ;
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}
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perr->perr_len =length;
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return hwmp_send_action(ni, sa, da, (uint8_t *)perr, perr->perr_len+2);
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return hwmp_send_action(vap, da, (uint8_t *)perr, perr->perr_len+2);
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}
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/*
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@ -1695,7 +1683,7 @@ hwmp_senderror(struct ieee80211vap *vap,
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default:
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KASSERT(0, ("unknown reason code for HWMP PERR (%u)", rcode));
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}
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hwmp_send_perr(vap->iv_bss, vap->iv_myaddr, broadcastaddr, &perr);
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hwmp_send_perr(vap, broadcastaddr, &perr);
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}
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#undef PERR_DFLAGS
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#undef PEER_DADDR
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@ -1782,8 +1770,8 @@ hwmp_recv_rann(struct ieee80211vap *vap, struct ieee80211_node *ni,
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IEEE80211_ADDR_COPY(preq.preq_targets[0].target_addr, rann->rann_addr);
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preq.preq_targets[0].target_seq = rann->rann_seq;
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/* XXX: if rootconfint have not passed, we built this preq in vain */
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hwmp_send_preq(vap->iv_bss, vap->iv_myaddr, wh->i_addr2, &preq,
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&hr->hr_lastrootconf, &ieee80211_hwmp_rootconfint);
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hwmp_send_preq(vap, wh->i_addr2, &preq, &hr->hr_lastrootconf,
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&ieee80211_hwmp_rootconfint);
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/* propagate a RANN */
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if (rt->rt_flags & IEEE80211_MESHRT_FLAGS_VALID &&
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@ -1794,14 +1782,12 @@ hwmp_recv_rann(struct ieee80211vap *vap, struct ieee80211_node *ni,
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prann.rann_hopcount += 1;
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prann.rann_ttl -= 1;
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prann.rann_metric += ms->ms_pmetric->mpm_metric(ni);
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hwmp_send_rann(vap->iv_bss, vap->iv_myaddr,
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broadcastaddr, &prann);
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hwmp_send_rann(vap, broadcastaddr, &prann);
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}
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}
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static int
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hwmp_send_rann(struct ieee80211_node *ni,
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const uint8_t sa[IEEE80211_ADDR_LEN],
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hwmp_send_rann(struct ieee80211vap *vap,
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const uint8_t da[IEEE80211_ADDR_LEN],
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struct ieee80211_meshrann_ie *rann)
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{
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@ -1816,8 +1802,7 @@ hwmp_send_rann(struct ieee80211_node *ni,
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*/
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rann->rann_ie = IEEE80211_ELEMID_MESHRANN;
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rann->rann_len = IEEE80211_MESHRANN_BASE_SZ;
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return hwmp_send_action(ni, sa, da, (uint8_t *)rann,
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rann->rann_len + 2);
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return hwmp_send_action(vap, da, (uint8_t *)rann, rann->rann_len + 2);
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}
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#define PREQ_TFLAGS(n) preq.preq_targets[n].target_flags
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@ -1872,9 +1857,8 @@ hwmp_rediscover_cb(void *arg)
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PREQ_TFLAGS(0) |= IEEE80211_MESHPREQ_TFLAGS_USN;
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PREQ_TSEQ(0) = 0; /* RESERVED when USN flag is set */
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/* XXX check return value */
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hwmp_send_preq(vap->iv_bss, vap->iv_myaddr,
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broadcastaddr, &preq, &hr->hr_lastpreq,
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&ieee80211_hwmp_preqminint);
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hwmp_send_preq(vap, broadcastaddr, &preq, &hr->hr_lastpreq,
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&ieee80211_hwmp_preqminint);
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callout_reset(&rt->rt_discovery,
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ieee80211_hwmp_net_diameter_traversaltime * 2,
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hwmp_rediscover_cb, rt);
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@ -1970,9 +1954,8 @@ hwmp_discover(struct ieee80211vap *vap,
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PREQ_TFLAGS(0) |= IEEE80211_MESHPREQ_TFLAGS_USN;
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PREQ_TSEQ(0) = 0; /* RESERVED when USN flag is set */
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/* XXX check return value */
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hwmp_send_preq(vap->iv_bss, vap->iv_myaddr,
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broadcastaddr, &preq, &hr->hr_lastpreq,
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&ieee80211_hwmp_preqminint);
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hwmp_send_preq(vap, broadcastaddr, &preq,
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&hr->hr_lastpreq, &ieee80211_hwmp_preqminint);
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callout_reset(&rt->rt_discovery,
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ieee80211_hwmp_net_diameter_traversaltime * 2,
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hwmp_rediscover_cb, rt);
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@ -77,9 +77,6 @@ static void mesh_checkid(void *, struct ieee80211_node *);
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static uint32_t mesh_generateid(struct ieee80211vap *);
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static int mesh_checkpseq(struct ieee80211vap *,
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const uint8_t [IEEE80211_ADDR_LEN], uint32_t);
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static struct ieee80211_node *
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mesh_find_txnode(struct ieee80211vap *,
|
||||
const uint8_t [IEEE80211_ADDR_LEN]);
|
||||
static void mesh_transmit_to_gate(struct ieee80211vap *, struct mbuf *,
|
||||
struct ieee80211_mesh_route *);
|
||||
static void mesh_forward(struct ieee80211vap *, struct mbuf *,
|
||||
@ -1005,8 +1002,8 @@ mesh_checkpseq(struct ieee80211vap *vap,
|
||||
/*
|
||||
* Iterate the routing table and locate the next hop.
|
||||
*/
|
||||
static struct ieee80211_node *
|
||||
mesh_find_txnode(struct ieee80211vap *vap,
|
||||
struct ieee80211_node *
|
||||
ieee80211_mesh_find_txnode(struct ieee80211vap *vap,
|
||||
const uint8_t dest[IEEE80211_ADDR_LEN])
|
||||
{
|
||||
struct ieee80211_mesh_route *rt;
|
||||
@ -1046,7 +1043,7 @@ mesh_transmit_to_gate(struct ieee80211vap *vap, struct mbuf *m,
|
||||
int error;
|
||||
|
||||
eh = mtod(m, struct ether_header *);
|
||||
ni = mesh_find_txnode(vap, rt_gate->rt_dest);
|
||||
ni = ieee80211_mesh_find_txnode(vap, rt_gate->rt_dest);
|
||||
if (ni == NULL) {
|
||||
ifp->if_oerrors++;
|
||||
m_freem(m);
|
||||
@ -1293,7 +1290,7 @@ mesh_forward(struct ieee80211vap *vap, struct mbuf *m,
|
||||
ni = ieee80211_ref_node(vap->iv_bss);
|
||||
mcopy->m_flags |= M_MCAST;
|
||||
} else {
|
||||
ni = mesh_find_txnode(vap, whcopy->i_addr3);
|
||||
ni = ieee80211_mesh_find_txnode(vap, whcopy->i_addr3);
|
||||
if (ni == NULL) {
|
||||
/*
|
||||
* [Optional] any of the following three actions:
|
||||
|
||||
@ -571,6 +571,9 @@ struct ieee80211_mesh_gate_route *
|
||||
const uint8_t *, struct ieee80211_mesh_route *);
|
||||
void ieee80211_mesh_forward_to_gates(struct ieee80211vap *,
|
||||
struct ieee80211_mesh_route *);
|
||||
struct ieee80211_node *
|
||||
ieee80211_mesh_find_txnode(struct ieee80211vap *,
|
||||
const uint8_t [IEEE80211_ADDR_LEN]);
|
||||
|
||||
/*
|
||||
* Return non-zero if proxy operation is enabled.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user