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net: yaip: Utilities to set and lookup interface IPv6 addresses

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The caller is able to add and lookup network interface IPv6
addresses.

Change-Id: I7f43e18bd1fa69c7dcd2f6b46ad33043c28b92e9
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-05-17 12:33:45 +03:00
commit 208d558f68
2 changed files with 149 additions and 0 deletions
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36
include/net/yaip/net_if.h
View file

@ -200,6 +200,42 @@ static inline uint16_t net_if_get_mtu(struct net_if *iface)
*/
struct net_if *net_if_get_by_link_addr(struct net_linkaddr *ll_addr);
/**
* @brief Check if this IPv6 address belongs to one of the interfaces.
* @param addr IPv6 address
* @return Pointer to interface address, NULL if not found.
*/
struct net_if_addr *net_if_ipv6_addr_lookup(struct in6_addr *addr);
/**
* @brief Add a IPv6 address to an interface
* @param iface Network interface
* @param addr IPv6 address
* @param addr_type IPv6 address type
* @param vlifetime Validity time for this address
* @return Pointer to interface address, NULL if cannot be added
*/
struct net_if_addr *net_if_ipv6_addr_add(struct net_if *iface,
struct in6_addr *addr,
enum net_addr_type addr_type,
uint32_t vlifetime);
/**
* @brief Add a IPv6 multicast address to an interface
* @param iface Network interface
* @param addr IPv6 multicast address
* @return Pointer to interface multicast address, NULL if cannot be added
*/
struct net_if_mcast_addr *net_if_ipv6_maddr_add(struct net_if *iface,
struct in6_addr *addr);
/**
* @brief Check if this IPv6 multicast address belongs to one of the interfaces.
* @param addr IPv6 address
* @return Pointer to interface multicast address, NULL if not found.
*/
struct net_if_mcast_addr *net_if_ipv6_maddr_lookup(struct in6_addr *addr);
struct net_if_api {
void (*init)(struct net_if *iface);
int (*send)(struct net_if *iface, struct net_buf *buf);

113
net/yaip/net_if.c
View file

@ -76,6 +76,119 @@ struct net_if *net_if_get_by_link_addr(struct net_linkaddr *ll_addr)
return NULL;
}
struct net_if_addr *net_if_ipv6_addr_lookup(struct in6_addr *addr)
{
struct net_if *iface;
for (iface = __net_if_start; iface != __net_if_end; iface++) {
int i;
for (i = 0; i < NET_IF_MAX_IPV6_ADDR; i++) {
if (!iface->ipv6.unicast[i].is_used ||
iface->ipv6.unicast[i].address.family != AF_INET6) {
continue;
}
if (net_is_ipv6_prefix(addr->s6_addr,
iface->ipv6.unicast[i].address.in6_addr.s6_addr,
128)) {
return &iface->ipv6.unicast[i];
}
}
}
return NULL;
}
struct net_if_addr *net_if_ipv6_addr_add(struct net_if *iface,
struct in6_addr *addr,
enum net_addr_type addr_type,
uint32_t vlifetime)
{
int i;
for (i = 0; i < NET_IF_MAX_IPV6_ADDR; i++) {
if (iface->ipv6.unicast[i].is_used) {
continue;
}
iface->ipv6.unicast[i].is_used = true;
iface->ipv6.unicast[i].address.family = AF_INET6;
iface->ipv6.unicast[i].addr_type = addr_type;
memcpy(&iface->ipv6.unicast[i].address.in6_addr, addr, 16);
/* FIXME - set the mcast addr for this node */
if (vlifetime) {
iface->ipv6.unicast[i].is_infinite = false;
/* FIXME - set the timer */
} else {
iface->ipv6.unicast[i].is_infinite = true;
}
NET_DBG("[%d] interface %p address %s type %s added", i, iface,
net_sprint_ipv6_addr(addr),
net_addr_type2str(addr_type));
return &iface->ipv6.unicast[i];
}
return NULL;
}
struct net_if_mcast_addr *net_if_ipv6_maddr_add(struct net_if *iface,
struct in6_addr *addr)
{
int i;
if (!net_is_ipv6_addr_mcast(addr)) {
NET_DBG("Address %s is not a multicast address.",
net_sprint_ipv6_addr(addr));
return NULL;
}
for (i = 0; i < NET_IF_MAX_IPV6_MADDR; i++) {
if (iface->ipv6.mcast[i].is_used) {
continue;
}
iface->ipv6.mcast[i].is_used = true;
memcpy(&iface->ipv6.mcast[i].address.in6_addr, addr, 16);
NET_DBG("[%d] interface %p address %s added", i, iface,
net_sprint_ipv6_addr(addr));
return &iface->ipv6.mcast[i];
}
return NULL;
}
struct net_if_mcast_addr *net_if_ipv6_maddr_lookup(struct in6_addr *maddr)
{
struct net_if *iface;
for (iface = __net_if_start; iface != __net_if_end; iface++) {
int i;
for (i = 0; i < NET_IF_MAX_IPV6_MADDR; i++) {
if (!iface->ipv6.mcast[i].is_used ||
iface->ipv6.mcast[i].address.family != AF_INET6) {
continue;
}
if (net_is_ipv6_prefix(maddr->s6_addr,
iface->ipv6.mcast[i].address.in6_addr.s6_addr,
128)) {
return &iface->ipv6.mcast[i];
}
}
}
return NULL;
}
int net_if_init(void)
{
struct net_if_api *api;