These functions are needed when we need to setup a route
to point-to-point link destination address. The route is
needed if P-t-P link does not have a default route.
---
include/inet.h | 2 +
src/inet.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 96 insertions(+), 0 deletions(-)
diff --git a/include/inet.h b/include/inet.h
index 1aa23ea..60525d5 100644
--- a/include/inet.h
+++ b/include/inet.h
@@ -78,6 +78,8 @@ int connman_inet_remove_from_bridge(int index, const char
*bridge);
int connman_inet_set_mtu(int index, int mtu);
int connman_inet_setup_tunnel(char *tunnel, int mtu);
int connman_inet_create_tunnel(char **iface);
+int connman_inet_get_dest_addr(int index, char **dest);
+int connman_inet_ipv6_get_dest_addr(int index, char **dest);
#ifdef __cplusplus
}
diff --git a/src/inet.c b/src/inet.c
index 5b81273..6202021 100644
--- a/src/inet.c
+++ b/src/inet.c
@@ -1781,3 +1781,97 @@ GSList *__connman_inet_ipv6_get_prefixes(struct
nd_router_advert *hdr,
return prefixes;
}
+
+static int get_dest_addr(int family, int index, char *buf, int len)
+{
+ struct ifreq ifr;
+ void *addr;
+ int sk;
+
+ sk = socket(family, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+ if (sk < 0)
+ return -errno;
+
+ memset(&ifr, 0, sizeof(ifr));
+ ifr.ifr_ifindex = index;
+
+ if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
+ DBG("SIOCGIFNAME (%d/%s)", errno, strerror(errno));
+ close(sk);
+ return -errno;
+ }
+
+ if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
+ DBG("SIOCGIFFLAGS (%d/%s)", errno, strerror(errno));
+ close(sk);
+ return -errno;
+ }
+
+ if ((ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
+ close(sk);
+ errno = EINVAL;
+ return -errno;
+ }
+
+ DBG("index %d %s", index, ifr.ifr_name);
+
+ if (ioctl(sk, SIOCGIFDSTADDR, &ifr) < 0) {
+ connman_error("Get destination address failed (%s)",
+ strerror(errno));
+ close(sk);
+ return -errno;
+ }
+
+ close(sk);
+
+ switch (family) {
+ case AF_INET:
+ addr = &((struct sockaddr_in *)&ifr.ifr_dstaddr)->sin_addr;
+ break;
+ case AF_INET6:
+ addr = &((struct sockaddr_in6 *)&ifr.ifr_dstaddr)->sin6_addr;
+ break;
+ default:
+ errno = EINVAL;
+ return -errno;
+ }
+
+ if (inet_ntop(family, addr, buf, len) == NULL) {
+ DBG("error %d/%s", errno, strerror(errno));
+ return -errno;
+ }
+
+ return 0;
+}
+
+int connman_inet_get_dest_addr(int index, char **dest)
+{
+ char addr[INET_ADDRSTRLEN];
+ int ret;
+
+ ret = get_dest_addr(PF_INET, index, addr, INET_ADDRSTRLEN);
+ if (ret < 0)
+ return ret;
+
+ *dest = g_strdup(addr);
+
+ DBG("destination %s", *dest);
+
+ return 0;
+}
+
+int connman_inet_ipv6_get_dest_addr(int index, char **dest)
+{
+ char addr[INET6_ADDRSTRLEN];
+ int ret;
+
+ ret = get_dest_addr(PF_INET6, index, addr, INET6_ADDRSTRLEN);
+ if (ret < 0)
+ return ret;
+
+ *dest = g_strdup(addr);
+
+ DBG("destination %s", *dest);
+
+ return 0;
+}
--
1.7.5.4
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