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net/ipv6: Renaming IPv6 neighbor state related macros and function

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Refining the names around IPv6's neighbor states to differentiate them
easily from any net_nbr related names (which are not tighten to IPv6).

Change-Id: Ibc24df2a9485477a53fe5fe1c8f993f0fcd91635
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This commit is contained in:
Tomasz Bursztyka 2017-03-23 16:59:04 +01:00 • committed by Jukka Rissanen
commit 1e3dc0cbb4
6 changed files with 63 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

86
subsys/net/ip/ipv6.c
View file

@ -58,33 +58,34 @@ NET_NBR_TABLE_INIT(NET_NBR_GLOBAL,
net_neighbor_pool,
net_neighbor_table_clear);
const char *net_nbr_state2str(enum net_nbr_state state)
const char *net_ipv6_nbr_state2str(enum net_ipv6_nbr_state state)
{
switch (state) {
case NET_NBR_INCOMPLETE:
case NET_IPV6_NBR_STATE_INCOMPLETE:
return "incomplete";
case NET_NBR_REACHABLE:
case NET_IPV6_NBR_STATE_REACHABLE:
return "reachable";
case NET_NBR_STALE:
case NET_IPV6_NBR_STATE_STALE:
return "stale";
case NET_NBR_DELAY:
case NET_IPV6_NBR_STATE_DELAY:
return "delay";
case NET_NBR_PROBE:
case NET_IPV6_NBR_STATE_PROBE:
return "probe";
}
return "<invalid state>";
}
static void nbr_set_state(struct net_nbr *nbr, enum net_nbr_state new_state)
static void ipv6_nbr_set_state(struct net_nbr *nbr,
enum net_ipv6_nbr_state new_state)
{
if (new_state == net_ipv6_nbr_data(nbr)->state) {
return;
}
NET_DBG("nbr %p %s -> %s", nbr,
net_nbr_state2str(net_ipv6_nbr_data(nbr)->state),
net_nbr_state2str(new_state));
net_ipv6_nbr_state2str(net_ipv6_nbr_data(nbr)->state),
net_ipv6_nbr_state2str(new_state));
net_ipv6_nbr_data(nbr)->state = new_state;
}
@ -245,7 +246,7 @@ struct net_nbr *net_ipv6_nbr_add(struct net_if *iface,
struct in6_addr *addr,
struct net_linkaddr *lladdr,
bool is_router,
enum net_nbr_state state)
enum net_ipv6_nbr_state state)
{
struct net_nbr *nbr = net_nbr_get(&net_neighbor.table);
@ -259,7 +260,7 @@ struct net_nbr *net_ipv6_nbr_add(struct net_if *iface,
}
net_ipaddr_copy(&net_ipv6_nbr_data(nbr)->addr, addr);
nbr_set_state(nbr, state);
ipv6_nbr_set_state(nbr, state);
net_ipv6_nbr_data(nbr)->is_router = is_router;
NET_DBG("[%d] nbr %p state %d router %d IPv6 %s ll %s",
@ -274,7 +275,7 @@ static inline struct net_nbr *nbr_add(struct net_buf *buf,
struct in6_addr *addr,
struct net_linkaddr *lladdr,
bool is_router,
enum net_nbr_state state)
enum net_ipv6_nbr_state state)
{
return net_ipv6_nbr_add(net_nbuf_iface(buf), addr, lladdr,
is_router, state);
@ -319,7 +320,7 @@ static void ns_reply_timeout(struct k_work *work)
static struct net_nbr *nbr_new(struct net_if *iface,
struct in6_addr *addr,
enum net_nbr_state state)
enum net_ipv6_nbr_state state)
{
struct net_nbr *nbr = net_nbr_get(&net_neighbor.table);
@ -331,7 +332,7 @@ static struct net_nbr *nbr_new(struct net_if *iface,
nbr->iface = iface;
net_ipaddr_copy(&net_ipv6_nbr_data(nbr)->addr, addr);
nbr_set_state(nbr, state);
ipv6_nbr_set_state(nbr, state);
net_ipv6_nbr_data(nbr)->pending = NULL;
#if defined(CONFIG_NET_IPV6_ND)
@ -779,7 +780,7 @@ try_send:
nbr ? nbr->idx : NET_NBR_LLADDR_UNKNOWN,
net_nbuf_iface(buf),
net_sprint_ipv6_addr(nexthop),
net_nbr_state2str(net_ipv6_nbr_data(nbr)->state));
net_ipv6_nbr_state2str(net_ipv6_nbr_data(nbr)->state));
if (nbr && nbr->idx != NET_NBR_LLADDR_UNKNOWN) {
struct net_linkaddr_storage *lladdr;
@ -796,8 +797,8 @@ try_send:
* See RFC 4861 ch 7.3.3 for details.
*/
#if defined(CONFIG_NET_IPV6_ND)
if (net_ipv6_nbr_data(nbr)->state == NET_NBR_STALE) {
nbr_set_state(nbr, NET_NBR_DELAY);
if (net_ipv6_nbr_data(nbr)->state == NET_IPV6_NBR_STATE_STALE) {
ipv6_nbr_set_state(nbr, NET_IPV6_NBR_STATE_DELAY);
k_delayed_work_submit(
&net_ipv6_nbr_data(nbr)->reachable,
@ -936,7 +937,8 @@ static inline void handle_ns_neighbor(struct net_buf *buf,
nbr_print();
nbr = nbr_new(net_nbuf_iface(buf),
&NET_IPV6_BUF(buf)->src, NET_NBR_INCOMPLETE);
&NET_IPV6_BUF(buf)->src,
NET_IPV6_NBR_STATE_INCOMPLETE);
if (nbr) {
NET_DBG("Added %s to nbr cache",
net_sprint_ipv6_addr(&NET_IPV6_BUF(buf)->src));
@ -969,11 +971,12 @@ static inline void handle_ns_neighbor(struct net_buf *buf,
net_linkaddr_set(cached_lladdr, lladdr.addr,
lladdr.len);
nbr_set_state(nbr, NET_NBR_STALE);
ipv6_nbr_set_state(nbr, NET_IPV6_NBR_STATE_STALE);
} else {
if (net_ipv6_nbr_data(nbr)->state ==
NET_NBR_INCOMPLETE) {
nbr_set_state(nbr, NET_NBR_STALE);
NET_IPV6_NBR_STATE_INCOMPLETE) {
ipv6_nbr_set_state(nbr,
NET_IPV6_NBR_STATE_STALE);
}
}
}
@ -1240,7 +1243,7 @@ static void nd_reachable_timeout(struct k_work *work)
switch (data->state) {
case NET_NBR_INCOMPLETE:
case NET_IPV6_NBR_STATE_INCOMPLETE:
if (data->ns_count >= MAX_MULTICAST_SOLICIT) {
nbr_free(nbr);
} else {
@ -1254,21 +1257,21 @@ static void nd_reachable_timeout(struct k_work *work)
}
break;
case NET_NBR_REACHABLE:
data->state = NET_NBR_STALE;
case NET_IPV6_NBR_STATE_REACHABLE:
data->state = NET_IPV6_NBR_STATE_STALE;
NET_DBG("nbr %p moving %s state to STALE (%d)",
nbr, net_sprint_ipv6_addr(&data->addr), data->state);
break;
case NET_NBR_STALE:
case NET_IPV6_NBR_STATE_STALE:
NET_DBG("nbr %p removing stale address %s",
nbr, net_sprint_ipv6_addr(&data->addr));
nbr_free(nbr);
break;
case NET_NBR_DELAY:
data->state = NET_NBR_PROBE;
case NET_IPV6_NBR_STATE_DELAY:
data->state = NET_IPV6_NBR_STATE_PROBE;
data->ns_count = 0;
NET_DBG("nbr %p moving %s state to PROBE (%d)",
@ -1276,7 +1279,7 @@ static void nd_reachable_timeout(struct k_work *work)
/* Intentionally continuing to probe state */
case NET_NBR_PROBE:
case NET_IPV6_NBR_STATE_PROBE:
if (data->ns_count >= MAX_UNICAST_SOLICIT) {
struct net_if_router *router;
@ -1383,7 +1386,7 @@ static inline bool handle_na_neighbor(struct net_buf *buf,
}
/* Update the cached address if we do not yet known it */
if (net_ipv6_nbr_data(nbr)->state == NET_NBR_INCOMPLETE) {
if (net_ipv6_nbr_data(nbr)->state == NET_IPV6_NBR_STATE_INCOMPLETE) {
if (!tllao) {
return false;
}
@ -1400,7 +1403,7 @@ static inline bool handle_na_neighbor(struct net_buf *buf,
}
if (net_is_solicited(buf)) {
nbr_set_state(nbr, NET_NBR_REACHABLE);
ipv6_nbr_set_state(nbr, NET_IPV6_NBR_STATE_REACHABLE);
net_ipv6_nbr_data(nbr)->ns_count = 0;
/* We might have active timer from PROBE */
@ -1410,7 +1413,7 @@ static inline bool handle_na_neighbor(struct net_buf *buf,
net_ipv6_nbr_set_reachable_timer(net_nbuf_iface(buf),
nbr);
} else {
nbr_set_state(nbr, NET_NBR_STALE);
ipv6_nbr_set_state(nbr, NET_IPV6_NBR_STATE_STALE);
}
net_ipv6_nbr_data(nbr)->is_router = net_is_router(buf);
@ -1422,8 +1425,9 @@ static inline bool handle_na_neighbor(struct net_buf *buf,
* and we have a valid address in the cache.
*/
if (!net_is_override(buf) && lladdr_changed) {
if (net_ipv6_nbr_data(nbr)->state == NET_NBR_REACHABLE) {
nbr_set_state(nbr, NET_NBR_STALE);
if (net_ipv6_nbr_data(nbr)->state ==
NET_IPV6_NBR_STATE_REACHABLE) {
ipv6_nbr_set_state(nbr, NET_IPV6_NBR_STATE_STALE);
}
return false;
@ -1444,7 +1448,7 @@ static inline bool handle_na_neighbor(struct net_buf *buf,
}
if (net_is_solicited(buf)) {
nbr_set_state(nbr, NET_NBR_REACHABLE);
ipv6_nbr_set_state(nbr, NET_IPV6_NBR_STATE_REACHABLE);
/* We might have active timer from PROBE */
k_delayed_work_cancel(
@ -1454,7 +1458,8 @@ static inline bool handle_na_neighbor(struct net_buf *buf,
nbr);
} else {
if (lladdr_changed) {
nbr_set_state(nbr, NET_NBR_STALE);
ipv6_nbr_set_state(nbr,
NET_IPV6_NBR_STATE_STALE);
}
}
}
@ -1687,7 +1692,7 @@ int net_ipv6_send_ns(struct net_if *iface,
nbr = nbr_new(net_nbuf_iface(buf),
&NET_ICMPV6_NS_BUF(buf)->tgt,
NET_NBR_INCOMPLETE);
NET_IPV6_NBR_STATE_INCOMPLETE);
if (!nbr) {
NET_DBG("Could not create new neighbor %s",
net_sprint_ipv6_addr(
@ -1864,7 +1869,7 @@ static inline struct net_buf *handle_ra_neighbor(struct net_buf *buf,
nbr_print();
*nbr = nbr_add(buf, &NET_IPV6_BUF(buf)->src, &lladdr,
true, NET_NBR_STALE);
true, NET_IPV6_NBR_STATE_STALE);
if (!*nbr) {
NET_ERR("Could not add router neighbor %s [%s]",
net_sprint_ipv6_addr(&NET_IPV6_BUF(buf)->src),
@ -1888,11 +1893,12 @@ static inline struct net_buf *handle_ra_neighbor(struct net_buf *buf,
net_linkaddr_set(cached_lladdr, lladdr.addr,
lladdr.len);
nbr_set_state(*nbr, NET_NBR_STALE);
ipv6_nbr_set_state(*nbr, NET_IPV6_NBR_STATE_STALE);
} else {
if (net_ipv6_nbr_data(*nbr)->state ==
NET_NBR_INCOMPLETE) {
nbr_set_state(*nbr, NET_NBR_STALE);
NET_IPV6_NBR_STATE_INCOMPLETE) {
ipv6_nbr_set_state(*nbr,
NET_IPV6_NBR_STATE_STALE);
}
}
}

20
subsys/net/ip/ipv6.h
View file

@ -64,15 +64,15 @@
#define NET_IPV6_MLDv2_BLOCK_OLD_SOURCES 6
/* State of the neighbor */
enum net_nbr_state {
NET_NBR_INCOMPLETE,
NET_NBR_REACHABLE,
NET_NBR_STALE,
NET_NBR_DELAY,
NET_NBR_PROBE,
enum net_ipv6_nbr_state {
NET_IPV6_NBR_STATE_INCOMPLETE,
NET_IPV6_NBR_STATE_REACHABLE,
NET_IPV6_NBR_STATE_STALE,
NET_IPV6_NBR_STATE_DELAY,
NET_IPV6_NBR_STATE_PROBE,
};
const char *net_nbr_state2str(enum net_nbr_state state);
const char *net_ipv6_nbr_state2str(enum net_ipv6_nbr_state state);
/**
* @brief IPv6 neighbor information.
@ -91,7 +91,7 @@ struct net_ipv6_nbr_data {
struct k_delayed_work send_ns;
/** State of the neighbor discovery */
enum net_nbr_state state;
enum net_ipv6_nbr_state state;
/** Link metric for the neighbor */
uint16_t link_metric;
@ -289,7 +289,7 @@ struct net_nbr *net_ipv6_nbr_add(struct net_if *iface,
struct in6_addr *addr,
struct net_linkaddr *lladdr,
bool is_router,
enum net_nbr_state state);
enum net_ipv6_nbr_state state);
/**
* @brief Remove a neighbour from neighbor cache.
@ -332,7 +332,7 @@ static inline struct net_nbr *net_ipv6_nbr_add(struct net_if *iface,
struct in6_addr *addr,
struct net_linkaddr *lladdr,
bool is_router,
enum net_nbr_state state)
enum net_ipv6_nbr_state state)
{
return NULL;
}

3
subsys/net/ip/l2/bluetooth.c
View file

@ -144,7 +144,8 @@ static void ipsp_connected(struct bt_l2cap_chan *chan)
* A Bluetooth LE 6LN MUST NOT register its link-local address.
*/
net_ipv6_addr_create_iid(&in6, &ll);
net_ipv6_nbr_add(ctxt->iface, &in6, &ll, false, NET_NBR_REACHABLE);
net_ipv6_nbr_add(ctxt->iface, &in6, &ll, false,
NET_IPV6_NBR_STATE_REACHABLE);
/* Set iface up */
net_if_up(ctxt->iface);

2
subsys/net/ip/net_shell.c
View file

@ -721,7 +721,7 @@ static void nbr_cb(struct net_nbr *nbr, void *user_data)
net_ipv6_nbr_data(nbr)->is_router,
net_ipv6_nbr_data(nbr)->link_metric,
nbr->iface,
net_nbr_state2str(net_ipv6_nbr_data(nbr)->state),
net_ipv6_nbr_state2str(net_ipv6_nbr_data(nbr)->state),
k_delayed_work_remaining_get(
&net_ipv6_nbr_data(nbr)->reachable),
nbr->idx == NET_NBR_LLADDR_UNKNOWN ? "?" :

4
subsys/net/ip/rpl.c
View file

@ -2700,7 +2700,7 @@ static enum net_verdict handle_dio(struct net_buf *buf)
&NET_IPV6_BUF(buf)->src,
net_nbuf_ll_src(buf),
0,
NET_NBR_REACHABLE);
NET_IPV6_NBR_STATE_REACHABLE);
if (!nbr) {
NET_DBG("Cannot add neighbor by DIO");
goto out;
@ -3391,7 +3391,7 @@ static enum net_verdict handle_dao(struct net_buf *buf)
if (!nbr) {
nbr = net_ipv6_nbr_add(net_nbuf_iface(buf), dao_sender,
net_nbuf_ll_src(buf), false,
NET_NBR_REACHABLE);
NET_IPV6_NBR_STATE_REACHABLE);
if (nbr) {
/* Set reachable timer */
net_ipv6_nbr_set_reachable_timer(net_nbuf_iface(buf),

4
tests/net/rpl/src/main.c
View file

@ -440,7 +440,7 @@ static bool net_test_send_ns(void)
&in6addr_my,
&iface->link_addr,
false,
NET_NBR_REACHABLE);
NET_IPV6_NBR_STATE_REACHABLE);
if (!nbr) {
TC_ERROR("Cannot add to neighbor cache\n");
return false;
@ -484,7 +484,7 @@ static bool net_test_nbr_lookup_ok(void)
net_sprint_ipv6_addr(&peer_addr),
net_sprint_ll_addr(llstorage->addr, llstorage->len));
net_ipv6_nbr_data(nbr)->state = NET_NBR_REACHABLE;
net_ipv6_nbr_data(nbr)->state = NET_IPV6_NBR_STATE_REACHABLE;
return true;
}