return 0;
}
-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) {
- log_warning("%s: could not bring up interface: %s",
- link->ifname, strerror(-r));
- link_enter_failed(link);
- }
-
- return 1;
-}
-
-static int link_up(Link *link) {
- _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
- int r;
-
- assert(link);
- assert(link->manager);
- assert(link->manager->rtnl);
-
- log_debug("%s: bringing up link", link->ifname);
-
- 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 set link flags");
- return r;
- }
-
- 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_bridge_joined(Link *link) {
- int r;
-
- assert(link);
- assert(link->state == LINK_STATE_JOINING_BRIDGE);
- assert(link->network);
-
- r = link_up(link);
- if (r < 0) {
- link_enter_failed(link);
- return r;
- }
-
- if (!link->network->dhcp) {
- r = link_enter_set_addresses(link);
- if (r < 0)
- link_enter_failed(link);
- return r;
- }
-
- 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_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("%s: could not join bridge '%s': %s",
- link->ifname, link->network->bridge->name, strerror(-r));
- link_enter_failed(link);
- return 1;
- } else
- log_debug("%s: joined bridge '%s'",
- link->ifname, link->network->bridge->name);
-
- link_bridge_joined(link);
-
- return 1;
-}
-
-static int link_enter_join_bridge(Link *link) {
- int r;
-
- assert(link);
- assert(link->network);
- assert(link->state == _LINK_STATE_INVALID);
-
- link->state = LINK_STATE_JOINING_BRIDGE;
-
- if (!link->network->bridge)
- return link_bridge_joined(link);
-
- log_debug("%s: joining bridge", link->ifname);
-
- r = bridge_join(link->network->bridge, link, &bridge_handler);
- if (r < 0) {
- log_warning("%s: could not join 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("%s: could not get state: %s",
- link->ifname, strerror(-r));
- link_enter_failed(link);
- }
-
- link_update(link, m);
-
- 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);
-
- log_debug("%s: requesting link status", link->ifname);
-
- 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 r;
-
- return 0;
-}
-
static int address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
Link *link = userdata;
int r;
int prefixlen;
int r;
+ assert(link);
+
if (link->state == LINK_STATE_FAILED)
return;
if (event == DHCP_EVENT_IP_CHANGE || event == DHCP_EVENT_EXPIRED ||
event == DHCP_EVENT_STOP) {
- address_drop(link->dhcp_address, link, address_drop_handler);
+ if (link->dhcp_address) {
+ address_drop(link->dhcp_address, link, address_drop_handler);
- address_free(link->dhcp_address);
- link->dhcp_address = NULL;
+ address_free(link->dhcp_address);
+ link->dhcp_address = NULL;
+ }
- route_free(link->dhcp_route);
- link->dhcp_route = NULL;
+ if (link->dhcp_route) {
+ route_free(link->dhcp_route);
+ link->dhcp_route = NULL;
+ }
}
r = sd_dhcp_client_get_address(client, &address);
return 0;
}
-int link_update(Link *link, sd_rtnl_message *m) {
- unsigned flags;
+static int link_update_flags(Link *link, unsigned flags) {
int r;
assert(link);
- assert(m);
+ assert(link->network);
- r = sd_rtnl_message_link_get_flags(m, &flags);
- if (r < 0) {
- log_warning("%s: could not get link flags", link->ifname);
- return r;
- }
+ if (link->state == LINK_STATE_FAILED)
+ return 0;
if (link->flags & IFF_UP && !(flags & IFF_UP))
log_info("%s: interface is down", link->ifname);
} else if (!(link->flags & IFF_LOWER_UP) && flags & IFF_LOWER_UP) {
log_info("%s: connected", link->ifname);
- if (link->network && link->network->dhcp) {
+ if (link->network->dhcp) {
r = link_acquire_conf(link);
if (r < 0) {
link_enter_failed(link);
link->flags = flags;
- log_debug("%s: updated state", link->ifname);
+ return 0;
+}
+
+static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ Link *link = userdata;
+ int r;
+
+ assert(link);
+
+ if (link->state == LINK_STATE_FAILED)
+ return 1;
+
+ r = sd_rtnl_message_get_errno(m);
+ if (r < 0) {
+ log_warning("%s: could not bring up interface: %s",
+ link->ifname, strerror(-r));
+ link_enter_failed(link);
+ }
+
+ link_update_flags(link, link->flags | IFF_UP);
+
+ return 1;
+}
+
+static int link_up(Link *link) {
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ int r;
+
+ assert(link);
+ assert(link->manager);
+ assert(link->manager->rtnl);
+
+ log_debug("%s: bringing up link", link->ifname);
+
+ 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 set link flags");
+ return r;
+ }
+
+ 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_bridge_joined(Link *link) {
+ int r;
+
+ assert(link);
+ assert(link->state == LINK_STATE_JOINING_BRIDGE);
+ assert(link->network);
+
+ r = link_up(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+
+ if (!link->network->dhcp)
+ 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);
+ 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("%s: could not join bridge '%s': %s",
+ link->ifname, link->network->bridge->name, strerror(-r));
+ link_enter_failed(link);
+ return 1;
+ } else
+ log_debug("%s: joined bridge '%s'",
+ link->ifname, link->network->bridge->name);
+
+ link_bridge_joined(link);
+
+ return 1;
+}
+
+static int link_enter_join_bridge(Link *link) {
+ int r;
+
+ assert(link);
+ assert(link->network);
+ assert(link->state == _LINK_STATE_INVALID);
+
+ link->state = LINK_STATE_JOINING_BRIDGE;
+
+ if (!link->network->bridge)
+ return link_bridge_joined(link);
+
+ log_debug("%s: joining bridge", link->ifname);
+
+ r = bridge_join(link->network->bridge, link, &bridge_handler);
+ if (r < 0) {
+ log_warning("%s: could not join 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;
+
+ assert(link);
+
+ if (link->state == LINK_STATE_FAILED)
+ return 1;
+
+ r = sd_rtnl_message_get_errno(m);
+ if (r < 0) {
+ log_warning("%s: could not get state: %s",
+ link->ifname, strerror(-r));
+ link_enter_failed(link);
+ }
+
+ log_debug("%s: got link state", link->ifname);
+
+ link_update(link, m);
+
+ 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);
+
+ log_debug("%s: requesting link status", link->ifname);
+
+ 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;
+ }
+
+ return link_enter_join_bridge(link);
+}
+
+int link_update(Link *link, sd_rtnl_message *m) {
+ unsigned flags;
+ int r;
+
+ assert(link);
+ assert(m);
+
+ if (link->state == LINK_STATE_FAILED)
+ return 0;
+
+ r = sd_rtnl_message_link_get_flags(m, &flags);
+ if (r < 0) {
+ log_warning("%s: could not get link flags", link->ifname);
+ return r;
+ }
+
+ return link_update_flags(link, flags);
+}
~ianmdlvl / elogind.git / blobdiff