-static int manager_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
- Manager *m = userdata;
- Link *link = NULL;
- uint16_t type;
- _cleanup_address_free_ Address *address = NULL;
- char buf[INET6_ADDRSTRLEN];
- int r, ifindex;
-
- assert(rtnl);
- assert(message);
- assert(m);
-
- r = sd_rtnl_message_get_type(message, &type);
- if (r < 0) {
- log_warning("rtnl: could not get message type");
- return 0;
- }
-
- r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
- if (r < 0 || ifindex <= 0) {
- log_warning("rtnl: received address message without valid ifindix, ignoring");
- return 0;
- } else {
- r = link_get(m, ifindex, &link);
- if (r < 0 || !link) {
- log_warning("rtnl: received address for non-existing link, ignoring");
- return 0;
- }
- }
-
- r = address_new_dynamic(&address);
- if (r < 0)
- return 0;
-
- r = sd_rtnl_message_addr_get_family(message, &address->family);
- if (r < 0 || !IN_SET(address->family, AF_INET, AF_INET6)) {
- log_warning("rtnl: received address with invalid family, ignoring");
- return 0;
- }
-
- r = sd_rtnl_message_addr_get_prefixlen(message, &address->prefixlen);
- if (r < 0) {
- log_warning("rtnl: recevied address with invalid prefixlen, ignoring");
- return 0;
- }
-
- switch (address->family) {
- case AF_INET:
- r = sd_rtnl_message_read_in_addr(message, IFA_LOCAL, &address->in_addr.in);
- if (r < 0) {
- log_warning("rtnl: received address without valid address, ignoring");
- return 0;
- }
-
- break;
-
- case AF_INET6:
- r = sd_rtnl_message_read_in6_addr(message, IFA_ADDRESS, &address->in_addr.in6);
- if (r < 0) {
- log_warning("rtnl: received address without valid address, ignoring");
- return 0;
- }
-
- break;
-
- default:
- assert_not_reached("invalid address family");
- }
-
- if (!inet_ntop(address->family, &address->in_addr, buf, INET6_ADDRSTRLEN)) {
- log_warning("could not print address");
- return 0;
- }
-
- switch (type) {
- case RTM_NEWADDR:
- log_info("added address: %s/%u to ifindex %d", buf,
- address->prefixlen, ifindex);
- break;
-
- case RTM_DELADDR:
- log_info("removed address: %s/%u from ifindex %d", buf,
- address->prefixlen, ifindex);
- break;
- default:
- assert_not_reached("Received invalid RTNL message type");
- }
-
- return 1;
-}
-