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nd6_rtr:

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Pull in the TAILQ_HEAD() as it is not needed outside nd6_rtr.c.
Rename the TAILQ_HEAD() struct and the nd_defrouter variable from
"nd_" to "nd6_" as they are not part of the RFC 3542 API which uses "ND_".

Ideally I'd like to also rename the struct nd_defrouter {} to "nd6_*"
but given that is used externally there is more work to do.

No functional changes.

MFC after:	3 weeks
Sponsored by:	Netflix
This commit is contained in:
bz 2019-11-16 00:02:36 +00:00
parent f7f4a6b4a2
commit 5569a9ae6a
2 changed files with 28 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sys/netinet6/nd6.h
View File

@ -193,7 +193,6 @@ struct in6_ndifreq {
(((MIN_RANDOM_FACTOR * (x >> 10)) + (arc4random() & \
((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
TAILQ_HEAD(nd_drhead, nd_defrouter);
struct nd_defrouter {
TAILQ_ENTRY(nd_defrouter) dr_entry;
struct in6_addr rtaddr;

55
sys/netinet6/nd6_rtr.c
View File

@ -92,8 +92,9 @@ static void in6_init_address_ltimes(struct nd_prefix *,
static int rt6_deleteroute(const struct rtentry *, void *);
VNET_DEFINE_STATIC(struct nd_drhead, nd_defrouter);
#define V_nd_defrouter VNET(nd_defrouter)
TAILQ_HEAD(nd6_drhead, nd_defrouter);
VNET_DEFINE_STATIC(struct nd6_drhead, nd6_defrouter);
#define V_nd6_defrouter VNET(nd6_defrouter)
VNET_DECLARE(int, nd6_recalc_reachtm_interval);
#define V_nd6_recalc_reachtm_interval VNET(nd6_recalc_reachtm_interval)
@ -141,12 +142,12 @@ defrouter_rele(struct nd_defrouter *dr)
* caller-supplied queue.
*/
static void
defrouter_unlink(struct nd_defrouter *dr, struct nd_drhead *drq)
defrouter_unlink(struct nd_defrouter *dr, struct nd6_drhead *drq)
{
ND6_WLOCK_ASSERT();
TAILQ_REMOVE(&V_nd_defrouter, dr, dr_entry);
TAILQ_REMOVE(&V_nd6_defrouter, dr, dr_entry);
V_nd6_list_genid++;
if (drq != NULL)
TAILQ_INSERT_TAIL(drq, dr, dr_entry);
@ -270,7 +271,7 @@ defrtr_ipv6_only_ifp(struct ifnet *ifp)
ipv6_only = true;
ND6_RLOCK();
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry)
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry)
if (dr->ifp == ifp &&
(dr->raflags & ND_RA_FLAG_IPV6_ONLY) == 0)
ipv6_only = false;
@ -680,7 +681,7 @@ defrouter_lookup_locked(struct in6_addr *addr, struct ifnet *ifp)
struct nd_defrouter *dr;
ND6_LOCK_ASSERT();
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry)
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry)
if (dr->ifp == ifp && IN6_ARE_ADDR_EQUAL(addr, &dr->rtaddr)) {
defrouter_ref(dr);
return (dr);
@ -746,14 +747,14 @@ defrouter_reset(void)
* current default router list and use that when deleting routes.
*/
ND6_RLOCK();
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry)
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry)
count++;
ND6_RUNLOCK();
dra = malloc(count * sizeof(*dra), M_TEMP, M_WAITOK | M_ZERO);
ND6_RLOCK();
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry) {
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry) {
if (i == count)
break;
defrouter_ref(dr);
@ -891,7 +892,7 @@ defrouter_select_fib(int fibnum)
* Let's handle easy case (3) first:
* If default router list is empty, there's nothing to be done.
*/
if (TAILQ_EMPTY(&V_nd_defrouter)) {
if (TAILQ_EMPTY(&V_nd6_defrouter)) {
ND6_RUNLOCK();
return;
}
@ -902,7 +903,7 @@ defrouter_select_fib(int fibnum)
* the ordering rule of the list described in defrtrlist_update().
*/
selected_dr = installed_dr = NULL;
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry) {
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry) {
NET_EPOCH_ENTER(et);
if (selected_dr == NULL && dr->ifp->if_fib == fibnum &&
(ln = nd6_lookup(&dr->rtaddr, 0, dr->ifp)) &&
@ -941,12 +942,12 @@ defrouter_select_fib(int fibnum)
if (selected_dr == NULL) {
if (installed_dr == NULL ||
TAILQ_NEXT(installed_dr, dr_entry) == NULL)
dr = TAILQ_FIRST(&V_nd_defrouter);
dr = TAILQ_FIRST(&V_nd6_defrouter);
else
dr = TAILQ_NEXT(installed_dr, dr_entry);
/* Ensure we select a router for this FIB. */
TAILQ_FOREACH_FROM(dr, &V_nd_defrouter, dr_entry) {
TAILQ_FOREACH_FROM(dr, &V_nd6_defrouter, dr_entry) {
if (dr->ifp->if_fib == fibnum) {
selected_dr = dr;
defrouter_ref(selected_dr);
@ -1084,7 +1085,7 @@ restart:
* The preferred router may have changed, so relocate this
* router.
*/
TAILQ_REMOVE(&V_nd_defrouter, dr, dr_entry);
TAILQ_REMOVE(&V_nd6_defrouter, dr, dr_entry);
n = dr;
} else {
n = malloc(sizeof(*n), M_IP6NDP, M_NOWAIT | M_ZERO);
@ -1105,14 +1106,14 @@ restart:
*/
/* insert at the end of the group */
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry) {
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry) {
if (rtpref(n) > rtpref(dr))
break;
}
if (dr != NULL)
TAILQ_INSERT_BEFORE(dr, n, dr_entry);
else
TAILQ_INSERT_TAIL(&V_nd_defrouter, n, dr_entry);
TAILQ_INSERT_TAIL(&V_nd6_defrouter, n, dr_entry);
V_nd6_list_genid++;
ND6_WUNLOCK();
@ -1750,7 +1751,7 @@ pfxlist_onlink_check(void)
* that does not advertise any prefixes.
*/
if (pr == NULL) {
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry) {
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry) {
struct nd_prefix *pr0;
LIST_FOREACH(pr0, &V_nd_prefix, ndpr_entry) {
@ -1761,7 +1762,7 @@ pfxlist_onlink_check(void)
break;
}
}
if (pr != NULL || (!TAILQ_EMPTY(&V_nd_defrouter) && pfxrtr == NULL)) {
if (pr != NULL || (!TAILQ_EMPTY(&V_nd6_defrouter) && pfxrtr == NULL)) {
/*
* There is at least one prefix that has a reachable router,
* or at least a router which probably does not advertise
@ -2550,7 +2551,7 @@ nd6_sysctl_drlist(SYSCTL_HANDLER_ARGS)
d.rtaddr.sin6_len = sizeof(d.rtaddr);
ND6_RLOCK();
TAILQ_FOREACH(dr, &V_nd_defrouter, dr_entry) {
TAILQ_FOREACH(dr, &V_nd6_defrouter, dr_entry) {
d.rtaddr.sin6_addr = dr->rtaddr;
error = sa6_recoverscope(&d.rtaddr);
if (error != 0)
@ -2576,19 +2577,19 @@ bool
nd6_defrouter_list_empty(void)
{
return (TAILQ_EMPTY(&V_nd_defrouter));
return (TAILQ_EMPTY(&V_nd6_defrouter));
}
void
nd6_defrouter_timer(void)
{
struct nd_defrouter *dr, *ndr;
struct nd_drhead drq;
struct nd6_drhead drq;
TAILQ_INIT(&drq);
ND6_WLOCK();
TAILQ_FOREACH_SAFE(dr, &V_nd_defrouter, dr_entry, ndr)
TAILQ_FOREACH_SAFE(dr, &V_nd6_defrouter, dr_entry, ndr)
if (dr->expire && dr->expire < time_uptime)
defrouter_unlink(dr, &drq);
ND6_WUNLOCK();
@ -2608,18 +2609,18 @@ void
nd6_defrouter_purge(struct ifnet *ifp)
{
struct nd_defrouter *dr, *ndr;
struct nd_drhead drq;
struct nd6_drhead drq;
TAILQ_INIT(&drq);
ND6_WLOCK();
TAILQ_FOREACH_SAFE(dr, &V_nd_defrouter, dr_entry, ndr) {
TAILQ_FOREACH_SAFE(dr, &V_nd6_defrouter, dr_entry, ndr) {
if (dr->installed)
continue;
if (dr->ifp == ifp)
defrouter_unlink(dr, &drq);
}
TAILQ_FOREACH_SAFE(dr, &V_nd_defrouter, dr_entry, ndr) {
TAILQ_FOREACH_SAFE(dr, &V_nd6_defrouter, dr_entry, ndr) {
if (!dr->installed)
continue;
if (dr->ifp == ifp)
@ -2638,12 +2639,12 @@ void
nd6_defrouter_flush_all(void)
{
struct nd_defrouter *dr;
struct nd_drhead drq;
struct nd6_drhead drq;
TAILQ_INIT(&drq);
ND6_WLOCK();
while ((dr = TAILQ_FIRST(&V_nd_defrouter)) != NULL)
while ((dr = TAILQ_FIRST(&V_nd6_defrouter)) != NULL)
defrouter_unlink(dr, &drq);
ND6_WUNLOCK();
@ -2657,5 +2658,5 @@ void
nd6_defrouter_init(void)
{
TAILQ_INIT(&V_nd_defrouter);
TAILQ_INIT(&V_nd6_defrouter);
}