diff options
author | Tom Gundersen <teg@jklm.no> | 2016-11-13 01:29:28 +0100 |
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committer | Tom Gundersen <teg@jklm.no> | 2016-11-13 01:29:30 +0100 |
commit | c5fcf6e47056a861fb53d4f3bedec68230f9a4e9 (patch) | |
tree | c6d16dfeb4eaea57bddd75ed3d06dfe8a3164937 /src/network/networkd-wait-online-manager.c | |
parent | 7d342c03322ee1ffb97fd608ce697ec911f7815a (diff) |
networkd-wait-online: move to separate subdirectory
Also clean up the header files a bit.
Diffstat (limited to 'src/network/networkd-wait-online-manager.c')
-rw-r--r-- | src/network/networkd-wait-online-manager.c | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/src/network/networkd-wait-online-manager.c b/src/network/networkd-wait-online-manager.c deleted file mode 100644 index 725b3310dd..0000000000 --- a/src/network/networkd-wait-online-manager.c +++ /dev/null @@ -1,329 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2013 Tom Gundersen <teg@jklm.no> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <netinet/ether.h> -#include <linux/if.h> -#include <fnmatch.h> - -#include "alloc-util.h" -#include "netlink-util.h" -#include "network-internal.h" -#include "networkd-wait-online-link.h" -#include "networkd-wait-online.h" -#include "time-util.h" -#include "util.h" - -bool manager_ignore_link(Manager *m, Link *link) { - assert(m); - assert(link); - - /* always ignore the loopback interface */ - if (link->flags & IFF_LOOPBACK) - return true; - - /* if interfaces are given on the command line, ignore all others */ - if (m->interfaces && !strv_contains(m->interfaces, link->ifname)) - return true; - - /* ignore interfaces we explicitly are asked to ignore */ - return strv_fnmatch(m->ignore, link->ifname, 0); -} - -bool manager_all_configured(Manager *m) { - Iterator i; - Link *l; - char **ifname; - bool one_ready = false; - - /* wait for all the links given on the command line to appear */ - STRV_FOREACH(ifname, m->interfaces) { - l = hashmap_get(m->links_by_name, *ifname); - if (!l) { - log_debug("still waiting for %s", *ifname); - return false; - } - } - - /* wait for all links networkd manages to be in admin state 'configured' - and at least one link to gain a carrier */ - HASHMAP_FOREACH(l, m->links, i) { - if (manager_ignore_link(m, l)) { - log_info("ignoring: %s", l->ifname); - continue; - } - - if (!l->state) { - log_debug("link %s has not yet been processed by udev", - l->ifname); - return false; - } - - if (STR_IN_SET(l->state, "configuring", "pending")) { - log_debug("link %s is being processed by networkd", - l->ifname); - return false; - } - - if (l->operational_state && - STR_IN_SET(l->operational_state, "degraded", "routable")) - /* we wait for at least one link to be ready, - regardless of who manages it */ - one_ready = true; - } - - return one_ready; -} - -static int manager_process_link(sd_netlink *rtnl, sd_netlink_message *mm, void *userdata) { - Manager *m = userdata; - uint16_t type; - Link *l; - const char *ifname; - int ifindex, r; - - assert(rtnl); - assert(m); - assert(mm); - - r = sd_netlink_message_get_type(mm, &type); - if (r < 0) - goto fail; - - r = sd_rtnl_message_link_get_ifindex(mm, &ifindex); - if (r < 0) - goto fail; - - r = sd_netlink_message_read_string(mm, IFLA_IFNAME, &ifname); - if (r < 0) - goto fail; - - l = hashmap_get(m->links, INT_TO_PTR(ifindex)); - - switch (type) { - - case RTM_NEWLINK: - if (!l) { - log_debug("Found link %i", ifindex); - - r = link_new(m, &l, ifindex, ifname); - if (r < 0) - goto fail; - - r = link_update_monitor(l); - if (r < 0) - goto fail; - } - - r = link_update_rtnl(l, mm); - if (r < 0) - goto fail; - - break; - - case RTM_DELLINK: - if (l) { - log_debug("Removing link %i", l->ifindex); - link_free(l); - } - - break; - } - - return 0; - -fail: - log_warning_errno(r, "Failed to process RTNL link message: %m"); - return 0; -} - -static int on_rtnl_event(sd_netlink *rtnl, sd_netlink_message *mm, void *userdata) { - Manager *m = userdata; - int r; - - r = manager_process_link(rtnl, mm, m); - if (r < 0) - return r; - - if (manager_all_configured(m)) - sd_event_exit(m->event, 0); - - return 1; -} - -static int manager_rtnl_listen(Manager *m) { - _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; - sd_netlink_message *i; - int r; - - assert(m); - - /* First, subscribe to interfaces coming and going */ - r = sd_netlink_open(&m->rtnl); - if (r < 0) - return r; - - r = sd_netlink_attach_event(m->rtnl, m->event, 0); - if (r < 0) - return r; - - r = sd_netlink_add_match(m->rtnl, RTM_NEWLINK, on_rtnl_event, m); - if (r < 0) - return r; - - r = sd_netlink_add_match(m->rtnl, RTM_DELLINK, on_rtnl_event, m); - if (r < 0) - return r; - - /* Then, enumerate all links */ - r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0); - if (r < 0) - return r; - - r = sd_netlink_message_request_dump(req, true); - if (r < 0) - return r; - - r = sd_netlink_call(m->rtnl, req, 0, &reply); - if (r < 0) - return r; - - for (i = reply; i; i = sd_netlink_message_next(i)) { - r = manager_process_link(m->rtnl, i, m); - if (r < 0) - return r; - } - - return r; -} - -static int on_network_event(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - Manager *m = userdata; - Iterator i; - Link *l; - int r; - - assert(m); - - sd_network_monitor_flush(m->network_monitor); - - HASHMAP_FOREACH(l, m->links, i) { - r = link_update_monitor(l); - if (r < 0) - log_warning_errno(r, "Failed to update monitor information for %i: %m", l->ifindex); - } - - if (manager_all_configured(m)) - sd_event_exit(m->event, 0); - - return 0; -} - -static int manager_network_monitor_listen(Manager *m) { - int r, fd, events; - - assert(m); - - r = sd_network_monitor_new(&m->network_monitor, NULL); - if (r < 0) - return r; - - fd = sd_network_monitor_get_fd(m->network_monitor); - if (fd < 0) - return fd; - - events = sd_network_monitor_get_events(m->network_monitor); - if (events < 0) - return events; - - r = sd_event_add_io(m->event, &m->network_monitor_event_source, - fd, events, &on_network_event, m); - if (r < 0) - return r; - - return 0; -} - -int manager_new(Manager **ret, char **interfaces, char **ignore, usec_t timeout) { - _cleanup_(manager_freep) Manager *m = NULL; - int r; - - assert(ret); - - m = new0(Manager, 1); - if (!m) - return -ENOMEM; - - m->interfaces = interfaces; - m->ignore = ignore; - - r = sd_event_default(&m->event); - if (r < 0) - return r; - - sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL); - sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL); - - if (timeout > 0) { - usec_t usec; - - usec = now(clock_boottime_or_monotonic()) + timeout; - - r = sd_event_add_time(m->event, NULL, clock_boottime_or_monotonic(), usec, 0, NULL, INT_TO_PTR(-ETIMEDOUT)); - if (r < 0) - return r; - } - - sd_event_set_watchdog(m->event, true); - - r = manager_network_monitor_listen(m); - if (r < 0) - return r; - - r = manager_rtnl_listen(m); - if (r < 0) - return r; - - *ret = m; - m = NULL; - - return 0; -} - -void manager_free(Manager *m) { - Link *l; - - if (!m) - return; - - while ((l = hashmap_first(m->links))) - link_free(l); - hashmap_free(m->links); - hashmap_free(m->links_by_name); - - sd_event_source_unref(m->network_monitor_event_source); - sd_network_monitor_unref(m->network_monitor); - - sd_event_source_unref(m->rtnl_event_source); - sd_netlink_unref(m->rtnl); - - sd_event_unref(m->event); - free(m); - - return; -} |