[PATCH 14/16] treewide: Change misleading 'addr_ll' name

[David Gibson <david@gibson.dropbear.id.au>]

c->ip6.addr_ll is not like c->ip6.addr.  The latter is an address for the
guest, but the former is an address for our use on the tap link.  Rename it
accordingly, to 'our_tap_ll'.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 conf.c   | 7 ++++---
 dhcpv6.c | 2 +-
 fwd.c    | 2 +-
 ndp.c    | 2 +-
 passt.h  | 4 ++--
 5 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/conf.c b/conf.c
index 09e97744..f1727ade 100644
--- a/conf.c
+++ b/conf.c
@@ -713,7 +713,7 @@ static unsigned int conf_ip6(unsigned int ifi,
 
 	rc = nl_addr_get(nl_sock, ifi, AF_INET6,
 			 IN6_IS_ADDR_UNSPECIFIED(&ip6->addr) ? &ip6->addr : NULL,
-			 &prefix_len, &ip6->addr_ll);
+			 &prefix_len, &ip6->our_tap_ll);
 	if (rc < 0) {
 		err("Couldn't discover IPv6 address: %s", strerror(-rc));
 		return 0;
@@ -735,7 +735,7 @@ static unsigned int conf_ip6(unsigned int ifi,
 	}
 
 	if (IN6_IS_ADDR_UNSPECIFIED(&ip6->addr) ||
-	    IN6_IS_ADDR_UNSPECIFIED(&ip6->addr_ll))
+	    IN6_IS_ADDR_UNSPECIFIED(&ip6->our_tap_ll))
 		return 0;
 
 	return ifi;
@@ -1027,7 +1027,8 @@ static void conf_print(const struct ctx *c)
 		info("    router: %s",
 		     inet_ntop(AF_INET6, &c->ip6.gw,   buf6, sizeof(buf6)));
 		info("    our link-local: %s",
-		     inet_ntop(AF_INET6, &c->ip6.addr_ll, buf6, sizeof(buf6)));
+		     inet_ntop(AF_INET6, &c->ip6.our_tap_ll,
+			       buf6, sizeof(buf6)));
 
 dns6:
 		for (i = 0; !IN6_IS_ADDR_UNSPECIFIED(&c->ip6.dns[i]); i++) {
diff --git a/dhcpv6.c b/dhcpv6.c
index 87b3c3eb..44e954e7 100644
--- a/dhcpv6.c
+++ b/dhcpv6.c
@@ -456,7 +456,7 @@ int dhcpv6(struct ctx *c, const struct pool *p,
 	if (IN6_IS_ADDR_LINKLOCAL(&c->ip6.gw))
 		src = &c->ip6.gw;
 	else
-		src = &c->ip6.addr_ll;
+		src = &c->ip6.our_tap_ll;
 
 	mh = packet_get(p, 0, sizeof(*uh), sizeof(*mh), NULL);
 	if (!mh)
diff --git a/fwd.c b/fwd.c
index b546bc41..dccc947d 100644
--- a/fwd.c
+++ b/fwd.c
@@ -320,7 +320,7 @@ uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto,
 		if (IN6_IS_ADDR_LINKLOCAL(&c->ip6.gw))
 			tgt->oaddr.a6 = c->ip6.gw;
 		else
-			tgt->oaddr.a6 = c->ip6.addr_ll;
+			tgt->oaddr.a6 = c->ip6.our_tap_ll;
 	}
 
 	if (inany_v4(&tgt->oaddr)) {
diff --git a/ndp.c b/ndp.c
index 9c0fef4a..3a76b00a 100644
--- a/ndp.c
+++ b/ndp.c
@@ -344,7 +344,7 @@ dns_done:
 	if (IN6_IS_ADDR_LINKLOCAL(&c->ip6.gw))
 		rsaddr = &c->ip6.gw;
 	else
-		rsaddr = &c->ip6.addr_ll;
+		rsaddr = &c->ip6.our_tap_ll;
 
 	if (ih->icmp6_type == NS) {
 		dlen = sizeof(struct ndp_na);
diff --git a/passt.h b/passt.h
index fe3e47d2..5e7e6a04 100644
--- a/passt.h
+++ b/passt.h
@@ -122,7 +122,7 @@ struct ip4_ctx {
 /**
  * struct ip6_ctx - IPv6 execution context
  * @addr:		IPv6 address assigned to guest
- * @addr_ll:		Link-local IPv6 address on external, routable interface
+ * @our_tap_ll:		Link-local IPv6 address for passt's use on tap
  * @addr_seen:		Latest IPv6 global/site address seen as source from tap
  * @addr_ll_seen:	Latest IPv6 link-local address seen as source from tap
  * @gw:			Default IPv6 gateway
@@ -136,7 +136,7 @@ struct ip4_ctx {
  */
 struct ip6_ctx {
 	struct in6_addr addr;
-	struct in6_addr addr_ll;
+	struct in6_addr our_tap_ll;
 	struct in6_addr addr_seen;
 	struct in6_addr addr_ll_seen;
 	struct in6_addr gw;
-- 
@@ -122,7 +122,7 @@ struct ip4_ctx {
 /**
  * struct ip6_ctx - IPv6 execution context
  * @addr:		IPv6 address assigned to guest
- * @addr_ll:		Link-local IPv6 address on external, routable interface
+ * @our_tap_ll:		Link-local IPv6 address for passt's use on tap
  * @addr_seen:		Latest IPv6 global/site address seen as source from tap
  * @addr_ll_seen:	Latest IPv6 link-local address seen as source from tap
  * @gw:			Default IPv6 gateway
@@ -136,7 +136,7 @@ struct ip4_ctx {
  */
 struct ip6_ctx {
 	struct in6_addr addr;
-	struct in6_addr addr_ll;
+	struct in6_addr our_tap_ll;
 	struct in6_addr addr_seen;
 	struct in6_addr addr_ll_seen;
 	struct in6_addr gw;
-- 
2.46.0