X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-wait-online-manager.c;fp=src%2Fnetwork%2Fnetworkd-wait-online-manager.c;h=0000000000000000000000000000000000000000;hp=1c997a50a4b3f4c9790fb06d93f0ff67ca2b4201;hb=0d36972c9094de2126c717ed7d167c8729e51bf2;hpb=80cf9fb2e6f8117f408850cda5c1a8a932226766 diff --git a/src/network/networkd-wait-online-manager.c b/src/network/networkd-wait-online-manager.c deleted file mode 100644 index 1c997a50a..000000000 --- a/src/network/networkd-wait-online-manager.c +++ /dev/null @@ -1,332 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2013 Tom Gundersen - - 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 . -***/ - -#include -#include -#include - -#include "rtnl-util.h" - -#include "network-internal.h" -#include "networkd-wait-online-link.h" -#include "networkd-wait-online.h" - -#include "util.h" -#include "time-util.h" - -bool manager_ignore_link(Manager *m, Link *link) { - char **ignore; - - assert(m); - assert(link); - - if (link->flags & IFF_LOOPBACK) - return true; - - STRV_FOREACH(ignore, m->ignore) - if (fnmatch(*ignore, link->ifname, 0) == 0) - return true; - - return false; -} - -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 (streq(l->state, "configuring")) { - 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_rtnl *rtnl, sd_rtnl_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_rtnl_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_rtnl_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_rtnl *rtnl, sd_rtnl_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_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL; - sd_rtnl_message *i; - int r; - - assert(m); - - /* First, subscribe to interfaces coming and going */ - r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR, RTNLGRP_IPV6_IFADDR); - if (r < 0) - return r; - - r = sd_rtnl_attach_event(m->rtnl, m->event, 0); - if (r < 0) - return r; - - r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, on_rtnl_event, m); - if (r < 0) - return r; - - r = sd_rtnl_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_rtnl_message_request_dump(req, true); - if (r < 0) - return r; - - r = sd_rtnl_call(m->rtnl, req, 0, &reply); - if (r < 0) - return r; - - for (i = reply; i; i = sd_rtnl_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_rtnl_unref(m->rtnl); - - sd_event_unref(m->event); - free(m); - - return; -}