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authorTom Gundersen <teg@jklm.no>2015-09-22 17:18:20 +0200
committerTom Gundersen <teg@jklm.no>2015-10-11 15:04:16 +0200
commit200a0868fcdf7b95f3d8d1fda3aa2aef48d84fdd (patch)
tree06e19487bbffe71bf535e2721e2ab91a257a83ba /src/network/networkd-manager.c
parent957325b7637a4d3a16a3cea5e2c6b36faa0e1be7 (diff)
networkd: address - process in manager.c rather than link.c
Diffstat (limited to 'src/network/networkd-manager.c')
-rw-r--r--src/network/networkd-manager.c166
1 files changed, 163 insertions, 3 deletions
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index e42f2a4c1e..3a733dc3c3 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -277,6 +277,166 @@ static int manager_connect_udev(Manager *m) {
return 0;
}
+int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
+ Manager *m = userdata;
+ Link *link = NULL;
+ uint16_t type;
+ _cleanup_address_free_ Address *address = NULL;
+ unsigned char flags;
+ Address *existing;
+ char buf[INET6_ADDRSTRLEN], valid_buf[FORMAT_TIMESPAN_MAX];
+ const char *valid_str = NULL;
+ int r, ifindex;
+
+ assert(rtnl);
+ assert(message);
+ assert(m);
+
+ if (sd_netlink_message_is_error(message)) {
+ r = sd_netlink_message_get_errno(message);
+ if (r < 0)
+ log_warning_errno(r, "rtnl: failed to receive address: %m");
+
+ return 0;
+ }
+
+ r = sd_netlink_message_get_type(message, &type);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get message type: %m");
+ return 0;
+ } else if (type != RTM_NEWADDR && type != RTM_DELADDR) {
+ log_warning("rtnl: received unexpected message type when processing address");
+ return 0;
+ }
+
+ r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get ifindex from address: %m");
+ return 0;
+ } else if (ifindex <= 0) {
+ log_warning("rtnl: received address message with invalid ifindex: %d", ifindex);
+ return 0;
+ } else {
+ r = link_get(m, ifindex, &link);
+ if (r < 0 || !link) {
+ /* when enumerating we might be out of sync, but we will
+ * get the address again, so just ignore it */
+ if (!m->enumerating)
+ log_warning("rtnl: received address for nonexistent link (%d), ignoring", ifindex);
+ return 0;
+ }
+ }
+
+ r = address_new(&address);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_message_addr_get_family(message, &address->family);
+ if (r < 0 || !IN_SET(address->family, AF_INET, AF_INET6)) {
+ log_link_warning(link, "rtnl: received address with invalid family, ignoring.");
+ return 0;
+ }
+
+ r = sd_rtnl_message_addr_get_prefixlen(message, &address->prefixlen);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "rtnl: received address with invalid prefixlen, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_rtnl_message_addr_get_scope(message, &address->scope);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "rtnl: received address with invalid scope, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_rtnl_message_addr_get_flags(message, &flags);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "rtnl: received address with invalid flags, ignoring: %m");
+ return 0;
+ }
+ address->flags = flags;
+
+ switch (address->family) {
+ case AF_INET:
+ r = sd_netlink_message_read_in_addr(message, IFA_LOCAL, &address->in_addr.in);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "rtnl: received address without valid address, ignoring: %m");
+ return 0;
+ }
+
+ break;
+
+ case AF_INET6:
+ r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &address->in_addr.in6);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "rtnl: received address without valid address, ignoring: %m");
+ return 0;
+ }
+
+ break;
+
+ default:
+ assert_not_reached("invalid address family");
+ }
+
+ if (!inet_ntop(address->family, &address->in_addr, buf, INET6_ADDRSTRLEN)) {
+ log_link_warning(link, "Could not print address");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &address->cinfo);
+ if (r >= 0) {
+ if (address->cinfo.ifa_valid == CACHE_INFO_INFINITY_LIFE_TIME)
+ valid_str = "ever";
+ else
+ valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
+ address->cinfo.ifa_valid * USEC_PER_SEC,
+ USEC_PER_SEC);
+ }
+
+ existing = link_get_equal_address(link, address);
+
+ switch (type) {
+ case RTM_NEWADDR:
+ if (existing) {
+ log_link_debug(link, "Updating address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+
+
+ existing->scope = address->scope;
+ existing->flags = address->flags;
+ existing->cinfo = address->cinfo;
+
+ } else {
+ log_link_debug(link, "Adding address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+
+ LIST_PREPEND(addresses, link->addresses, address);
+ address_establish(address, link);
+
+ address = NULL;
+
+ link_save(link);
+ }
+
+ break;
+
+ case RTM_DELADDR:
+
+ if (existing) {
+ log_link_debug(link, "Removing address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+ address_release(existing, link);
+ LIST_REMOVE(addresses, link->addresses, existing);
+ address_free(existing);
+ } else
+ log_link_warning(link, "Removing non-existent address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+
+ break;
+ default:
+ assert_not_reached("Received invalid RTNL message type");
+ }
+
+ return 1;
+}
+
static int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
Manager *m = userdata;
Link *link = NULL;
@@ -410,11 +570,11 @@ static int manager_connect_rtnl(Manager *m) {
if (r < 0)
return r;
- r = sd_netlink_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, m);
+ r = sd_netlink_add_match(m->rtnl, RTM_NEWADDR, &manager_rtnl_process_address, m);
if (r < 0)
return r;
- r = sd_netlink_add_match(m->rtnl, RTM_DELADDR, &link_rtnl_process_address, m);
+ r = sd_netlink_add_match(m->rtnl, RTM_DELADDR, &manager_rtnl_process_address, m);
if (r < 0)
return r;
@@ -633,7 +793,7 @@ int manager_rtnl_enumerate_addresses(Manager *m) {
m->enumerating = true;
- k = link_rtnl_process_address(m->rtnl, addr, m);
+ k = manager_rtnl_process_address(m->rtnl, addr, m);
if (k < 0)
r = k;