}
static int link_enter_configured(Link *link) {
+ assert(link);
+ assert(link->state == LINK_STATE_SETTING_ROUTES);
+
log_info("Link '%s' configured", link->ifname);
link->state = LINK_STATE_CONFIGURED;
return 0;
}
-static int link_enter_failed(Link *link) {
- log_warning("Could not configure link '%s'", link->ifname);
+static void link_enter_failed(Link *link) {
+ assert(link);
link->state = LINK_STATE_FAILED;
-
- return 0;
-}
-
-static bool link_is_up(Link *link) {
- return link->flags & IFF_UP;
-}
-
-static int link_enter_routes_set(Link *link) {
- log_info("Routes set for link '%s'", link->ifname);
-
- if (link_is_up(link))
- return link_enter_configured(link);
-
- link->state = LINK_STATE_ROUTES_SET;
-
- return 0;
}
static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
int r;
assert(link->rtnl_messages > 0);
- assert(link->state == LINK_STATE_SET_ROUTES || link->state == LINK_STATE_FAILED);
+ assert(link->state == LINK_STATE_SETTING_ROUTES || link->state == LINK_STATE_FAILED);
link->rtnl_messages --;
log_warning("Could not set route on interface '%s': %s",
link->ifname, strerror(-r));
- if (link->rtnl_messages == 0)
- return link_enter_routes_set(link);
+ if (link->rtnl_messages == 0) {
+ log_info("Routes set for link '%s'", link->ifname);
+ link_enter_configured(link);
+ }
return 1;
}
assert(link);
assert(link->network);
assert(link->rtnl_messages == 0);
- assert(link->state == LINK_STATE_ADDRESSES_SET);
+ assert(link->state == LINK_STATE_SETTING_ADDRESSES);
- link->state = LINK_STATE_SET_ROUTES;
+ link->state = LINK_STATE_SETTING_ROUTES;
if (!link->network->routes)
- return link_enter_routes_set(link);
+ return link_enter_configured(link);
LIST_FOREACH(routes, route, link->network->routes) {
r = route_configure(route, link, &route_handler);
- if (r < 0)
- return link_enter_failed(link);
+ if (r < 0) {
+ log_warning("Could not set routes for link '%s'", link->ifname);
+ link_enter_failed(link);
+ return r;
+ }
link->rtnl_messages ++;
}
return 0;
}
-static int link_enter_addresses_set(Link *link) {
- log_info("Addresses set for link '%s'", link->ifname);
-
- link->state = LINK_STATE_ADDRESSES_SET;
-
- return link_enter_set_routes(link);
-}
-
static int address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
Link *link = userdata;
int r;
assert(link->rtnl_messages > 0);
- assert(link->state == LINK_STATE_SET_ADDRESSES || link->state == LINK_STATE_FAILED);
+ assert(link->state == LINK_STATE_SETTING_ADDRESSES || link->state == LINK_STATE_FAILED);
link->rtnl_messages --;
log_warning("Could not set address on interface '%s': %s",
link->ifname, strerror(-r));
- if (link->rtnl_messages == 0)
- link_enter_addresses_set(link);
+ if (link->rtnl_messages == 0) {
+ log_info("Addresses set for link '%s'", link->ifname);
+ link_enter_set_routes(link);
+ }
return 1;
}
assert(link);
assert(link->network);
+ assert(link->state == LINK_STATE_JOINING_BRIDGE);
assert(link->rtnl_messages == 0);
- if (!link->network->addresses)
- return link_enter_addresses_set(link);
+ link->state = LINK_STATE_SETTING_ADDRESSES;
- link->state = LINK_STATE_SET_ADDRESSES;
+ if (!link->network->addresses)
+ return link_enter_set_routes(link);
LIST_FOREACH(addresses, address, link->network->addresses) {
r = address_configure(address, link, &address_handler);
- if (r < 0)
- return link_enter_failed(link);
+ if (r < 0) {
+ log_warning("Could not set addresses for link '%s'", link->ifname);
+ link_enter_failed(link);
+ return r;
+ }
link->rtnl_messages ++;
}
return 0;
}
-static int link_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
Link *link = userdata;
int r;
r = sd_rtnl_message_get_errno(m);
- if (r < 0)
+ if (r < 0) {
log_warning("Could not bring up interface '%s': %s",
link->ifname, strerror(-r));
-
- link->flags |= IFF_UP;
-
- log_info("Link '%s' is up", link->ifname);
-
- if (link->state == LINK_STATE_ROUTES_SET)
- return link_enter_configured(link);
+ link_enter_failed(link);
+ }
return 1;
}
assert(link->manager);
assert(link->manager->rtnl);
- r = sd_rtnl_message_link_new(RTM_NEWLINK, link->ifindex, 0, IFF_UP, &req);
+ r = sd_rtnl_message_link_new(RTM_SETLINK, link->ifindex, &req);
+ if (r < 0) {
+ log_error("Could not allocate RTM_SETLINK message");
+ return r;
+ }
+
+ r = sd_rtnl_message_link_set_flags(req, IFF_UP);
if (r < 0) {
- log_error("Could not allocate RTM_NEWLINK message");
+ log_error("Could not set link flags");
return r;
}
- r = sd_rtnl_call_async(link->manager->rtnl, req, link_handler, link, 0, NULL);
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link, 0, NULL);
if (r < 0) {
log_error("Could not send rtnetlink message: %s", strerror(-r));
return r;
return 0;
}
-static int link_enter_bridge_joined(Link *link) {
+static int link_bridge_joined(Link *link) {
int r;
+ assert(link);
+ assert(link->state == LINK_STATE_JOINING_BRIDGE);
+
r = link_up(link);
- if (r < 0)
- return link_enter_failed(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
- link->state = LINK_STATE_BRIDGE_JOINED;
+ r = link_enter_set_addresses(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
- return link_enter_set_addresses(link);
+ return 0;
}
static int bridge_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
Link *link = userdata;
int r;
- assert(link->state == LINK_STATE_JOIN_BRIDGE || link->state == LINK_STATE_FAILED);
+ assert(link->state == LINK_STATE_JOINING_BRIDGE || link->state == LINK_STATE_FAILED);
+ assert(link->network);
if (link->state == LINK_STATE_FAILED)
return 1;
r = sd_rtnl_message_get_errno(m);
- if (r < 0)
- log_warning("Could not join interface '%s' to bridge: %s",
- link->ifname, strerror(-r));
+ if (r < 0) {
+ log_warning("Could not join interface '%s' to bridge '%s': %s",
+ link->ifname, link->network->bridge->name, strerror(-r));
+ link_enter_failed(link);
+ return 1;
+ } else
+ log_info("Join interface '%s' to bridge: %s",
+ link->ifname, link->network->bridge->name);
- link_enter_bridge_joined(link);
+ link_bridge_joined(link);
return 1;
}
assert(link);
assert(link->network);
+ assert(link->state == _LINK_STATE_INVALID);
- if (!link->network->bridge)
- return link_enter_bridge_joined(link);
+ link->state = LINK_STATE_JOINING_BRIDGE;
- link->state = LINK_STATE_JOIN_BRIDGE;
+ if (!link->network->bridge)
+ return link_bridge_joined(link);
r = bridge_join(link->network->bridge, link, &bridge_handler);
- if (r < 0)
- return link_enter_failed(link);
+ if (r < 0) {
+ log_warning("Could not join link '%s' to bridge '%s'", link->ifname,
+ link->network->bridge->name);
+ link_enter_failed(link);
+ return r;
+ }
+
+ return 0;
+}
+
+static int link_get_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ Link *link = userdata;
+ int r;
+
+ r = sd_rtnl_message_get_errno(m);
+ if (r < 0) {
+ log_warning("Could not get state of interface '%s': %s",
+ link->ifname, strerror(-r));
+ link_enter_failed(link);
+ }
+
+ return 1;
+}
+
+static int link_get(Link *link) {
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ int r;
+
+ assert(link);
+ assert(link->manager);
+ assert(link->manager->rtnl);
+
+ r = sd_rtnl_message_link_new(RTM_GETLINK, link->ifindex, &req);
+ if (r < 0) {
+ log_error("Could not allocate RTM_GETLINK message");
+ return r;
+ }
+
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_get_handler, link, 0, NULL);
+ if (r < 0) {
+ log_error("Could not send rtnetlink message: %s", strerror(-r));
+ return r;
+ }
return 0;
}
int link_configure(Link *link) {
int r;
+ assert(link);
+ assert(link->network);
+ assert(link->state == _LINK_STATE_INVALID);
+
+ r = link_get(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+
r = link_enter_join_bridge(link);
if (r < 0)
- return link_enter_failed(link);
+ return r;
+
+ return 0;
+}
+
+int link_update(Link *link, sd_rtnl_message *m) {
+ unsigned flags;
+ int r;
+
+ assert(link);
+ assert(m);
+
+ r = sd_rtnl_message_link_get_flags(m, &flags);
+ if (r < 0) {
+ log_warning("Could not get link flags of '%s'", link->ifname);
+ return r;
+ }
+
+ if (link->flags & IFF_UP && !(flags & IFF_UP))
+ log_info("Interface '%s' is down", link->ifname);
+ else if (!(link->flags & IFF_UP) && flags & IFF_UP)
+ log_info("Interface '%s' is up", link->ifname);
+
+ if (link->flags & IFF_LOWER_UP && !(flags & IFF_LOWER_UP))
+ log_info("Interface '%s' is disconnected", link->ifname);
+ else if (!(link->flags & IFF_LOWER_UP) && flags & IFF_LOWER_UP)
+ log_info("Interface '%s' is connected", link->ifname);
+
+ link->flags = flags;
return 0;
}
~ianmdlvl / elogind.git / blobdiff