X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-wait-online.c;h=d588935e9353ebc67d45d5a906012d94ea879169;hp=6530659c10e9a1e2972b1be66f54101a19643c80;hb=7de12ae764e73730df0658f9fb04bcf42add48e2;hpb=cef8b0735831b2bfeaf21d8a245d8024c3de816a diff --git a/src/network/networkd-wait-online.c b/src/network/networkd-wait-online.c index 6530659c1..d588935e9 100644 --- a/src/network/networkd-wait-online.c +++ b/src/network/networkd-wait-online.c @@ -1,4 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. @@ -19,23 +18,13 @@ along with systemd; If not, see . ***/ -#include -#include #include -#include "sd-event.h" -#include "event-util.h" -#include "sd-rtnl.h" -#include "rtnl-util.h" #include "sd-daemon.h" -#include "sd-network.h" -#include "network-util.h" -#include "network-internal.h" + #include "networkd-wait-online.h" -#include "conf-parser.h" #include "strv.h" -#include "util.h" #include "build.h" static bool arg_quiet = false; @@ -106,165 +95,16 @@ static int parse_argv(int argc, char *argv[]) { return 1; } -static bool all_configured(Manager *m) { - _cleanup_free_ unsigned *indices = NULL; - char **ifname; - bool one_ready = false; - int r, n, i; - - n = sd_network_get_ifindices(&indices); - if (n <= 0) - return false; - - STRV_FOREACH(ifname, arg_interfaces) { - _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL, *reply = NULL; - bool found = false; - int index; - - r = sd_rtnl_message_new_link(m->rtnl, &message, RTM_GETLINK, 0); - if (r < 0) { - log_warning("colud not create GETLINK message: %s", strerror(-r)); - return false; - } - - r = sd_rtnl_message_append_string(message, IFLA_IFNAME, *ifname); - if (r < 0) { - log_warning("could not attach ifname to GETLINK message: %s", strerror(-r)); - return false; - } - - r = sd_rtnl_call(m->rtnl, message, 0, &reply); - if (r < 0) { - if (r != -ENODEV) - log_warning("could not get link info for %s: %s", *ifname, - strerror(-r)); - - /* link does not yet exist */ - return false; - } - - r = sd_rtnl_message_link_get_ifindex(reply, &index); - if (r < 0) { - log_warning("could not get ifindex: %s", strerror(-r)); - return false; - } - - if (index <= 0) { - log_warning("invalid ifindex %d for %s", index, *ifname); - return false; - } - - for (i = 0; i < n; i++) { - if (indices[i] == (unsigned) index) { - found = true; - break; - } - } - - if (!found) { - /* link exists, but networkd is not yet aware of it */ - return false; - } - - for (i = 0; i < n; i++) { - _cleanup_free_ char *state = NULL; - - r = sd_network_get_link_state(indices[i], &state); - if (r == -EUNATCH) { - _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL, *reply = NULL; - unsigned flags; - uint8_t operstate; - - r = sd_rtnl_message_new_link(m->rtnl, &message, RTM_GETLINK, indices[i]); - if (r < 0) { - log_warning("could not create GETLINK message: %s", strerror(-r)); - return false; - } - - r = sd_rtnl_call(m->rtnl, message, 0, &reply); - if (r < 0) { - log_debug("could not get link %u: %s", indices[i], strerror(-r)); - continue; - } - - r = sd_rtnl_message_link_get_flags(reply, &flags); - if (r < 0) { - log_warning("could not get link flags: %s", strerror(-r)); - return false; - } - - r = sd_rtnl_message_read_u8(reply, IFLA_OPERSTATE, &operstate); - if (r < 0) { - log_debug("could not get link operational state: %s", strerror(-r)); - operstate = IF_OPER_UNKNOWN; - } - - if (!(flags & IFF_LOOPBACK) && - link_has_carrier(flags, operstate)) { - /* this link is not managed by us, - but something else may have - made it ready, so don't block */ - one_ready = true; - } - - continue; - } else if (r < 0 || !streq(state, "configured")) - /* managed by networkd, but not yet configured */ - return false; - - /* we wait for at least one link to appear */ - one_ready = true; - } - - return one_ready; -} - -static int monitor_event_handler(sd_event_source *s, int fd, uint32_t revents, - void *userdata) { - Manager *m = userdata; - - assert(m); - assert(m->event); - - if (all_configured(m)) - sd_event_exit(m->event, 0); - - return 1; -} - -static int newlink_event_handler(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) { - Manager *m = userdata; - - assert(m); - assert(m->event); - - if (all_configured(m)) - sd_event_exit(m->event, 0); - - return 1; -} - -void manager_free(Manager *m) { - if (!m) - return; - - sd_event_unref(m->event); - sd_rtnl_unref(m->rtnl); - - free(m); -} - int main(int argc, char *argv[]) { - _cleanup_manager_free_ Manager *m = NULL; - _cleanup_event_source_unref_ sd_event_source *event_source = NULL; - _cleanup_network_monitor_unref_ sd_network_monitor *monitor = NULL; - int r, fd, events; - - umask(0022); + _cleanup_(manager_freep) Manager *m = NULL; + int r; + log_set_target(LOG_TARGET_AUTO); log_parse_environment(); log_open(); + umask(0022); + r = parse_argv(argc, argv); if (r <= 0) return r; @@ -272,60 +112,17 @@ int main(int argc, char *argv[]) { if (arg_quiet) log_set_max_level(LOG_WARNING); - m = new0(Manager, 1); - if (!m) - return log_oom(); - - r = sd_network_monitor_new(NULL, &monitor); - if (r < 0) { - log_error("Could not create monitor: %s", strerror(-r)); - goto out; - } - - r = sd_event_new(&m->event); - if (r < 0) { - log_error("Could not create event: %s", strerror(-r)); - goto out; - } - - fd = sd_network_monitor_get_fd(monitor); - if (fd < 0) { - log_error("Could not get monitor fd: %s", strerror(-r)); - goto out; - } - - events = sd_network_monitor_get_events(monitor); - if (events < 0) { - log_error("Could not get monitor events: %s", strerror(-r)); - goto out; - } - - r = sd_event_add_io(m->event, &event_source, fd, events, &monitor_event_handler, - m); - if (r < 0) { - log_error("Could not add io event source: %s", strerror(-r)); - goto out; - } + assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0); - r = sd_rtnl_open(&m->rtnl, RTMGRP_LINK); + r = manager_new(&m, arg_interfaces); if (r < 0) { - log_error("Could not create rtnl: %s", strerror(-r)); - goto out; + log_error("Could not create manager: %s", strerror(-r)); + goto finish; } - r = sd_rtnl_attach_event(m->rtnl, m->event, 0); - if (r < 0) { - log_error("Could not attach event to rtnl: %s", strerror(-r)); - return r; - } - - r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, newlink_event_handler, m); - if (r < 0) - return r; - - if (all_configured(m)) { + if (manager_all_configured(m)) { r = 0; - goto out; + goto finish; } sd_notify(false, @@ -335,12 +132,11 @@ int main(int argc, char *argv[]) { r = sd_event_loop(m->event); if (r < 0) { log_error("Event loop failed: %s", strerror(-r)); - goto out; + goto finish; } -out: - sd_notify(false, - "STATUS=All interfaces configured..."); +finish: + sd_notify(false, "STATUS=All interfaces configured..."); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; }