diff options
Diffstat (limited to 'conf.c')
| -rw-r--r-- | conf.c | 65 |
1 files changed, 51 insertions, 14 deletions
@@ -648,12 +648,24 @@ static unsigned int conf_ip4(unsigned int ifi, return 0; } - if (IN4_IS_ADDR_UNSPECIFIED(&ip4->gw)) - nl_route_get_def(nl_sock, ifi, AF_INET, &ip4->gw); + if (IN4_IS_ADDR_UNSPECIFIED(&ip4->gw)) { + int rc = nl_route_get_def(nl_sock, ifi, AF_INET, &ip4->gw); + if (rc < 0) { + err("Couldn't discover IPv4 gateway address: %s", + strerror(-rc)); + return 0; + } + } - if (IN4_IS_ADDR_UNSPECIFIED(&ip4->addr)) - nl_addr_get(nl_sock, ifi, AF_INET, - &ip4->addr, &ip4->prefix_len, NULL); + if (IN4_IS_ADDR_UNSPECIFIED(&ip4->addr)) { + int rc = nl_addr_get(nl_sock, ifi, AF_INET, + &ip4->addr, &ip4->prefix_len, NULL); + if (rc < 0) { + err("Couldn't discover IPv4 address: %s", + strerror(-rc)); + return 0; + } + } if (!ip4->prefix_len) { in_addr_t addr = ntohl(ip4->addr.s_addr); @@ -669,8 +681,15 @@ static unsigned int conf_ip4(unsigned int ifi, memcpy(&ip4->addr_seen, &ip4->addr, sizeof(ip4->addr_seen)); - if (MAC_IS_ZERO(mac)) - nl_link_get_mac(nl_sock, ifi, mac); + if (MAC_IS_ZERO(mac)) { + int rc = nl_link_get_mac(nl_sock, ifi, mac); + if (rc < 0) { + char ifname[IFNAMSIZ]; + err("Couldn't discover MAC for %s: %s", + if_indextoname(ifi, ifname), strerror(-rc)); + return 0; + } + } if (IN4_IS_ADDR_UNSPECIFIED(&ip4->addr) || MAC_IS_ZERO(mac)) @@ -691,6 +710,7 @@ static unsigned int conf_ip6(unsigned int ifi, struct ip6_ctx *ip6, unsigned char *mac) { int prefix_len = 0; + int rc; if (!ifi) ifi = nl_get_ext_if(nl_sock, AF_INET6); @@ -700,18 +720,35 @@ static unsigned int conf_ip6(unsigned int ifi, return 0; } - if (IN6_IS_ADDR_UNSPECIFIED(&ip6->gw)) - nl_route_get_def(nl_sock, ifi, AF_INET6, &ip6->gw); + if (IN6_IS_ADDR_UNSPECIFIED(&ip6->gw)) { + rc = nl_route_get_def(nl_sock, ifi, AF_INET6, &ip6->gw); + if (rc < 0) { + err("Couldn't discover IPv6 gateway address: %s", + strerror(-rc)); + return 0; + } + } - nl_addr_get(nl_sock, ifi, AF_INET6, - IN6_IS_ADDR_UNSPECIFIED(&ip6->addr) ? &ip6->addr : NULL, - &prefix_len, &ip6->addr_ll); + rc = nl_addr_get(nl_sock, ifi, AF_INET6, + IN6_IS_ADDR_UNSPECIFIED(&ip6->addr) ? &ip6->addr : NULL, + &prefix_len, &ip6->addr_ll); + if (rc < 0) { + err("Couldn't discover IPv6 address: %s", strerror(-rc)); + return 0; + } memcpy(&ip6->addr_seen, &ip6->addr, sizeof(ip6->addr)); memcpy(&ip6->addr_ll_seen, &ip6->addr_ll, sizeof(ip6->addr_ll)); - if (MAC_IS_ZERO(mac)) - nl_link_get_mac(0, ifi, mac); + if (MAC_IS_ZERO(mac)) { + rc = nl_link_get_mac(nl_sock, ifi, mac); + if (rc < 0) { + char ifname[IFNAMSIZ]; + err("Couldn't discover MAC for %s: %s", + if_indextoname(ifi, ifname), strerror(-rc)); + return 0; + } + } if (IN6_IS_ADDR_UNSPECIFIED(&ip6->addr) || IN6_IS_ADDR_UNSPECIFIED(&ip6->addr_ll) || |