Author: markj
Date: Thu May  5 23:06:39 2016
New Revision: 299145
URL: https://svnweb.freebsd.org/changeset/base/299145

Log:
  MFC r295583, r295584, r295729, r295730:
  NDP code cleanup changes.
  
  MFC r295732:
  Fix an IPv6 DAD reference count leak.

Modified:
  stable/10/sys/netinet6/nd6.c
  stable/10/sys/netinet6/nd6.h
  stable/10/sys/netinet6/nd6_nbr.c
  stable/10/sys/netinet6/nd6_rtr.c
  stable/10/sys/netinet6/scope6.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/netinet6/nd6.c
==============================================================================
--- stable/10/sys/netinet6/nd6.c        Thu May  5 22:40:07 2016        
(r299144)
+++ stable/10/sys/netinet6/nd6.c        Thu May  5 23:06:39 2016        
(r299145)
@@ -2215,7 +2215,7 @@ nd6_sysctl_drlist(SYSCTL_HANDLER_ARGS)
                error = sa6_recoverscope(&d.rtaddr);
                if (error != 0)
                        return (error);
-               d.flags = dr->flags;
+               d.flags = dr->raflags;
                d.rtlifetime = dr->rtlifetime;
                d.expire = dr->expire + (time_second - time_uptime);
                d.if_index = dr->ifp->if_index;

Modified: stable/10/sys/netinet6/nd6.h
==============================================================================
--- stable/10/sys/netinet6/nd6.h        Thu May  5 22:40:07 2016        
(r299144)
+++ stable/10/sys/netinet6/nd6.h        Thu May  5 23:06:39 2016        
(r299145)
@@ -235,13 +235,13 @@ struct    in6_ndifreq {
                ((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
 
 TAILQ_HEAD(nd_drhead, nd_defrouter);
-struct nd_defrouter {
+struct nd_defrouter {
        TAILQ_ENTRY(nd_defrouter) dr_entry;
-       struct  in6_addr rtaddr;
-       u_char  flags;          /* flags on RA message */
+       struct in6_addr rtaddr;
+       u_char  raflags;        /* flags on RA message */
        u_short rtlifetime;
        u_long  expire;
-       struct  ifnet *ifp;
+       struct ifnet *ifp;
        int     installed;      /* is installed into kernel routing table */
 };
 
@@ -445,7 +445,6 @@ void nd6_dad_stop(struct ifaddr *);
 /* nd6_rtr.c */
 void nd6_rs_input(struct mbuf *, int, int);
 void nd6_ra_input(struct mbuf *, int, int);
-void prelist_del(struct nd_prefix *);
 void defrouter_reset(void);
 void defrouter_select(void);
 void defrtrlist_del(struct nd_defrouter *);

Modified: stable/10/sys/netinet6/nd6_nbr.c
==============================================================================
--- stable/10/sys/netinet6/nd6_nbr.c    Thu May  5 22:40:07 2016        
(r299144)
+++ stable/10/sys/netinet6/nd6_nbr.c    Thu May  5 23:06:39 2016        
(r299145)
@@ -1315,9 +1315,10 @@ nd6_dad_start(struct ifaddr *ifa, int de
        }
        if ((dp = nd6_dad_find(ifa, NULL)) != NULL) {
                /*
-                * DAD already in progress.  Let the existing entry
-                * to finish it.
+                * DAD is already in progress.  Let the existing entry
+                * finish it.
                 */
+               nd6_dad_rele(dp);
                return;
        }
 

Modified: stable/10/sys/netinet6/nd6_rtr.c
==============================================================================
--- stable/10/sys/netinet6/nd6_rtr.c    Thu May  5 22:40:07 2016        
(r299144)
+++ stable/10/sys/netinet6/nd6_rtr.c    Thu May  5 23:06:39 2016        
(r299145)
@@ -270,7 +270,7 @@ nd6_ra_input(struct mbuf *m, int off, in
 
        bzero(&dr0, sizeof(dr0));
        dr0.rtaddr = saddr6;
-       dr0.flags  = nd_ra->nd_ra_flags_reserved;
+       dr0.raflags = nd_ra->nd_ra_flags_reserved;
        /*
         * Effectively-disable routes from RA messages when
         * ND6_IFF_NO_RADR enabled on the receiving interface or
@@ -708,7 +708,7 @@ defrouter_select(void)
 static int
 rtpref(struct nd_defrouter *dr)
 {
-       switch (dr->flags & ND_RA_FLAG_RTPREF_MASK) {
+       switch (dr->raflags & ND_RA_FLAG_RTPREF_MASK) {
        case ND_RA_FLAG_RTPREF_HIGH:
                return (RTPREF_HIGH);
        case ND_RA_FLAG_RTPREF_MEDIUM:
@@ -722,7 +722,7 @@ rtpref(struct nd_defrouter *dr)
                 * serious bug of kernel internal.  We thus always bark here.
                 * Or, can we even panic?
                 */
-               log(LOG_ERR, "rtpref: impossible RA flag %x\n", dr->flags);
+               log(LOG_ERR, "rtpref: impossible RA flag %x\n", dr->raflags);
                return (RTPREF_INVALID);
        }
        /* NOTREACHED */
@@ -744,7 +744,7 @@ defrtrlist_update(struct nd_defrouter *n
                oldpref = rtpref(dr);
 
                /* override */
-               dr->flags = new->flags; /* xxx flag check */
+               dr->raflags = new->raflags; /* XXX flag check */
                dr->rtlifetime = new->rtlifetime;
                dr->expire = new->expire;
 
@@ -937,9 +937,9 @@ prelist_remove(struct nd_prefix *pr)
        /* unlink ndpr_entry from nd_prefix list */
        LIST_REMOVE(pr, ndpr_entry);
 
-       /* free list of routers that adversed the prefix */
+       /* free list of routers that advertised the prefix */
        LIST_FOREACH_SAFE(pfr, &pr->ndpr_advrtrs, pfr_entry, next) {
-               free(pfr, M_IP6NDP);
+               pfxrtr_del(pfr);
        }
        free(pr, M_IP6NDP);
 

Modified: stable/10/sys/netinet6/scope6.c
==============================================================================
--- stable/10/sys/netinet6/scope6.c     Thu May  5 22:40:07 2016        
(r299144)
+++ stable/10/sys/netinet6/scope6.c     Thu May  5 23:06:39 2016        
(r299145)
@@ -416,7 +416,7 @@ sa6_recoverscope(struct sockaddr_in6 *si
                            zoneid != sin6->sin6_scope_id) {
                                log(LOG_NOTICE,
                                    "%s: embedded scope mismatch: %s%%%d. "
-                                   "sin6_scope_id was overridden.", __func__,
+                                   "sin6_scope_id was overridden\n", __func__,
                                    ip6_sprintf(ip6buf, &sin6->sin6_addr),
                                    sin6->sin6_scope_id);
                        }
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