diff options
Diffstat (limited to 'src/ndisc')
| -rw-r--r-- | src/ndisc/nm-fake-ndisc.c | 421 | ||||
| -rw-r--r-- | src/ndisc/nm-fake-ndisc.h | 68 | ||||
| -rw-r--r-- | src/ndisc/nm-lndp-ndisc.c | 752 | ||||
| -rw-r--r-- | src/ndisc/nm-lndp-ndisc.h | 46 | ||||
| -rw-r--r-- | src/ndisc/nm-ndisc-private.h | 67 | ||||
| -rw-r--r-- | src/ndisc/nm-ndisc.c | 1696 | ||||
| -rw-r--r-- | src/ndisc/nm-ndisc.h | 233 | ||||
| -rw-r--r-- | src/ndisc/tests/meson.build | 26 | ||||
| -rw-r--r-- | src/ndisc/tests/test-ndisc-fake.c | 538 | ||||
| -rw-r--r-- | src/ndisc/tests/test-ndisc-linux.c | 85 |
10 files changed, 0 insertions, 3932 deletions
diff --git a/src/ndisc/nm-fake-ndisc.c b/src/ndisc/nm-fake-ndisc.c deleted file mode 100644 index bd9f5f7e..00000000 --- a/src/ndisc/nm-fake-ndisc.c +++ /dev/null @@ -1,421 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include "nm-fake-ndisc.h" - -#include <arpa/inet.h> - -#include "nm-ndisc-private.h" - -#define _NMLOG_PREFIX_NAME "ndisc-fake" - -/*****************************************************************************/ - -typedef struct { - guint id; - guint when; - - NMNDiscDHCPLevel dhcp_level; - GArray * gateways; - GArray * prefixes; - GArray * dns_servers; - GArray * dns_domains; - int hop_limit; - guint32 mtu; -} FakeRa; - -typedef struct { - struct in6_addr network; - int plen; - struct in6_addr gateway; - guint32 timestamp; - guint32 lifetime; - guint32 preferred; - NMIcmpv6RouterPref preference; -} FakePrefix; - -/*****************************************************************************/ - -enum { - RS_SENT, - LAST_SIGNAL, -}; -static guint signals[LAST_SIGNAL] = {0}; - -typedef struct { - guint receive_ra_id; - GSList *ras; -} NMFakeNDiscPrivate; - -struct _NMFakeRNDisc { - NMNDisc parent; - NMFakeNDiscPrivate _priv; -}; - -struct _NMFakeRNDiscClass { - NMNDiscClass parent; -}; - -G_DEFINE_TYPE(NMFakeNDisc, nm_fake_ndisc, NM_TYPE_NDISC) - -#define NM_FAKE_NDISC_GET_PRIVATE(self) \ - _NM_GET_PRIVATE(self, NMFakeNDisc, NM_IS_FAKE_NDISC, NMNDisc) - -/*****************************************************************************/ - -static void -fake_ra_free(gpointer data) -{ - FakeRa *ra = data; - - g_array_free(ra->gateways, TRUE); - g_array_free(ra->prefixes, TRUE); - g_array_free(ra->dns_servers, TRUE); - g_array_free(ra->dns_domains, TRUE); - g_free(ra); -} - -static void -ra_dns_domain_free(gpointer data) -{ - g_free(((NMNDiscDNSDomain *) (data))->domain); -} - -static FakeRa * -find_ra(GSList *ras, guint id) -{ - GSList *iter; - - for (iter = ras; iter; iter = iter->next) { - if (((FakeRa *) iter->data)->id == id) - return iter->data; - } - return NULL; -} - -guint -nm_fake_ndisc_add_ra(NMFakeNDisc * self, - guint seconds_after_previous, - NMNDiscDHCPLevel dhcp_level, - int hop_limit, - guint32 mtu) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(self); - static guint counter = 1; - FakeRa * ra; - - ra = g_malloc0(sizeof(*ra)); - ra->id = counter++; - ra->when = seconds_after_previous; - ra->dhcp_level = dhcp_level; - ra->hop_limit = hop_limit; - ra->mtu = mtu; - ra->gateways = g_array_new(FALSE, FALSE, sizeof(NMNDiscGateway)); - ra->prefixes = g_array_new(FALSE, FALSE, sizeof(FakePrefix)); - ra->dns_servers = g_array_new(FALSE, FALSE, sizeof(NMNDiscDNSServer)); - ra->dns_domains = g_array_new(FALSE, FALSE, sizeof(NMNDiscDNSDomain)); - g_array_set_clear_func(ra->dns_domains, ra_dns_domain_free); - - priv->ras = g_slist_append(priv->ras, ra); - return ra->id; -} - -void -nm_fake_ndisc_add_gateway(NMFakeNDisc * self, - guint ra_id, - const char * addr, - guint32 timestamp, - guint32 lifetime, - NMIcmpv6RouterPref preference) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(self); - FakeRa * ra = find_ra(priv->ras, ra_id); - NMNDiscGateway * gw; - - g_assert(ra); - g_array_set_size(ra->gateways, ra->gateways->len + 1); - gw = &g_array_index(ra->gateways, NMNDiscGateway, ra->gateways->len - 1); - g_assert(inet_pton(AF_INET6, addr, &gw->address) == 1); - gw->timestamp = timestamp; - gw->lifetime = lifetime; - gw->preference = preference; -} - -void -nm_fake_ndisc_add_prefix(NMFakeNDisc * self, - guint ra_id, - const char * network, - guint plen, - const char * gateway, - guint32 timestamp, - guint32 lifetime, - guint32 preferred, - NMIcmpv6RouterPref preference) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(self); - FakeRa * ra = find_ra(priv->ras, ra_id); - FakePrefix * prefix; - - g_assert(ra); - g_array_set_size(ra->prefixes, ra->prefixes->len + 1); - prefix = &g_array_index(ra->prefixes, FakePrefix, ra->prefixes->len - 1); - memset(prefix, 0, sizeof(*prefix)); - g_assert(inet_pton(AF_INET6, network, &prefix->network) == 1); - g_assert(inet_pton(AF_INET6, gateway, &prefix->gateway) == 1); - prefix->plen = plen; - prefix->timestamp = timestamp; - prefix->lifetime = lifetime; - prefix->preferred = preferred; - prefix->preference = preference; -} - -void -nm_fake_ndisc_add_dns_server(NMFakeNDisc *self, - guint ra_id, - const char * address, - guint32 timestamp, - guint32 lifetime) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(self); - FakeRa * ra = find_ra(priv->ras, ra_id); - NMNDiscDNSServer * dns; - - g_assert(ra); - g_array_set_size(ra->dns_servers, ra->dns_servers->len + 1); - dns = &g_array_index(ra->dns_servers, NMNDiscDNSServer, ra->dns_servers->len - 1); - g_assert(inet_pton(AF_INET6, address, &dns->address) == 1); - dns->timestamp = timestamp; - dns->lifetime = lifetime; -} - -void -nm_fake_ndisc_add_dns_domain(NMFakeNDisc *self, - guint ra_id, - const char * domain, - guint32 timestamp, - guint32 lifetime) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(self); - FakeRa * ra = find_ra(priv->ras, ra_id); - NMNDiscDNSDomain * dns; - - g_assert(ra); - g_array_set_size(ra->dns_domains, ra->dns_domains->len + 1); - dns = &g_array_index(ra->dns_domains, NMNDiscDNSDomain, ra->dns_domains->len - 1); - dns->domain = g_strdup(domain); - dns->timestamp = timestamp; - dns->lifetime = lifetime; -} - -gboolean -nm_fake_ndisc_done(NMFakeNDisc *self) -{ - return !NM_FAKE_NDISC_GET_PRIVATE(self)->ras; -} - -/*****************************************************************************/ - -static gboolean -send_rs(NMNDisc *ndisc, GError **error) -{ - g_signal_emit(ndisc, signals[RS_SENT], 0); - return TRUE; -} - -static gboolean -receive_ra(gpointer user_data) -{ - NMFakeNDisc * self = user_data; - NMFakeNDiscPrivate * priv = NM_FAKE_NDISC_GET_PRIVATE(self); - NMNDisc * ndisc = NM_NDISC(self); - NMNDiscDataInternal *rdata = ndisc->rdata; - FakeRa * ra = priv->ras->data; - NMNDiscConfigMap changed = 0; - gint32 now = nm_utils_get_monotonic_timestamp_sec(); - guint i; - NMNDiscDHCPLevel dhcp_level; - - priv->receive_ra_id = 0; - - /* preserve the "most managed" level on updates. */ - dhcp_level = MAX(rdata->public.dhcp_level, ra->dhcp_level); - - if (rdata->public.dhcp_level != dhcp_level) { - rdata->public.dhcp_level = dhcp_level; - changed |= NM_NDISC_CONFIG_DHCP_LEVEL; - } - - for (i = 0; i < ra->gateways->len; i++) { - NMNDiscGateway *item = &g_array_index(ra->gateways, NMNDiscGateway, i); - - if (nm_ndisc_add_gateway(ndisc, item)) - changed |= NM_NDISC_CONFIG_GATEWAYS; - } - - for (i = 0; i < ra->prefixes->len; i++) { - FakePrefix * item = &g_array_index(ra->prefixes, FakePrefix, i); - NMNDiscRoute route = { - .network = item->network, - .plen = item->plen, - .gateway = item->gateway, - .timestamp = item->timestamp, - .lifetime = item->lifetime, - .preference = item->preference, - }; - - g_assert(route.plen > 0 && route.plen <= 128); - - if (nm_ndisc_add_route(ndisc, &route)) - changed |= NM_NDISC_CONFIG_ROUTES; - - if (item->plen == 64) { - NMNDiscAddress address = { - .address = item->network, - .timestamp = item->timestamp, - .lifetime = item->lifetime, - .preferred = item->preferred, - .dad_counter = 0, - }; - - if (nm_ndisc_complete_and_add_address(ndisc, &address, now)) - changed |= NM_NDISC_CONFIG_ADDRESSES; - } - } - - for (i = 0; i < ra->dns_servers->len; i++) { - NMNDiscDNSServer *item = &g_array_index(ra->dns_servers, NMNDiscDNSServer, i); - - if (nm_ndisc_add_dns_server(ndisc, item)) - changed |= NM_NDISC_CONFIG_DNS_SERVERS; - } - - for (i = 0; i < ra->dns_domains->len; i++) { - NMNDiscDNSDomain *item = &g_array_index(ra->dns_domains, NMNDiscDNSDomain, i); - - if (nm_ndisc_add_dns_domain(ndisc, item)) - changed |= NM_NDISC_CONFIG_DNS_DOMAINS; - } - - if (rdata->public.mtu != ra->mtu) { - rdata->public.mtu = ra->mtu; - changed |= NM_NDISC_CONFIG_MTU; - } - - if (rdata->public.hop_limit != ra->hop_limit) { - rdata->public.hop_limit = ra->hop_limit; - changed |= NM_NDISC_CONFIG_HOP_LIMIT; - } - - priv->ras = g_slist_remove(priv->ras, priv->ras->data); - fake_ra_free(ra); - - nm_ndisc_ra_received(NM_NDISC(self), now, changed); - - /* Schedule next RA */ - if (priv->ras) { - ra = priv->ras->data; - priv->receive_ra_id = g_timeout_add_seconds(ra->when, receive_ra, self); - } - - return G_SOURCE_REMOVE; -} - -static void -start(NMNDisc *ndisc) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(ndisc); - FakeRa * ra; - - /* Queue up the first fake RA */ - g_assert(priv->ras); - ra = priv->ras->data; - - g_assert(!priv->receive_ra_id); - priv->receive_ra_id = g_timeout_add_seconds(ra->when, receive_ra, ndisc); -} - -static void -stop(NMNDisc *ndisc) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(ndisc); - - nm_clear_g_source(&priv->receive_ra_id); -} - -void -nm_fake_ndisc_emit_new_ras(NMFakeNDisc *self) -{ - if (!NM_FAKE_NDISC_GET_PRIVATE(self)->receive_ra_id) - start(NM_NDISC(self)); -} - -/*****************************************************************************/ - -static void -nm_fake_ndisc_init(NMFakeNDisc *fake_ndisc) -{} - -NMNDisc * -nm_fake_ndisc_new(int ifindex, const char *ifname) -{ - return g_object_new(NM_TYPE_FAKE_NDISC, - NM_NDISC_IFINDEX, - ifindex, - NM_NDISC_IFNAME, - ifname, - NM_NDISC_NODE_TYPE, - (int) NM_NDISC_NODE_TYPE_HOST, - NM_NDISC_STABLE_TYPE, - (int) NM_UTILS_STABLE_TYPE_UUID, - NM_NDISC_NETWORK_ID, - "fake", - NM_NDISC_MAX_ADDRESSES, - NM_NDISC_MAX_ADDRESSES_DEFAULT, - NM_NDISC_ROUTER_SOLICITATIONS, - NM_NDISC_ROUTER_SOLICITATIONS_DEFAULT, - NM_NDISC_ROUTER_SOLICITATION_INTERVAL, - NM_NDISC_ROUTER_SOLICITATION_INTERVAL_DEFAULT, - NM_NDISC_RA_TIMEOUT, - 30u, - NULL); -} - -static void -dispose(GObject *object) -{ - NMFakeNDiscPrivate *priv = NM_FAKE_NDISC_GET_PRIVATE(object); - - nm_clear_g_source(&priv->receive_ra_id); - - g_slist_free_full(priv->ras, fake_ra_free); - priv->ras = NULL; - - G_OBJECT_CLASS(nm_fake_ndisc_parent_class)->dispose(object); -} - -static void -nm_fake_ndisc_class_init(NMFakeNDiscClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS(klass); - NMNDiscClass *ndisc_class = NM_NDISC_CLASS(klass); - - object_class->dispose = dispose; - - ndisc_class->start = start; - ndisc_class->stop = stop; - ndisc_class->send_rs = send_rs; - - signals[RS_SENT] = g_signal_new(NM_FAKE_NDISC_RS_SENT, - G_OBJECT_CLASS_TYPE(klass), - G_SIGNAL_RUN_FIRST, - 0, - NULL, - NULL, - NULL, - G_TYPE_NONE, - 0); -} diff --git a/src/ndisc/nm-fake-ndisc.h b/src/ndisc/nm-fake-ndisc.h deleted file mode 100644 index 47f40560..00000000 --- a/src/ndisc/nm-fake-ndisc.h +++ /dev/null @@ -1,68 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#ifndef __NETWORKMANAGER_FAKE_NDISC_H__ -#define __NETWORKMANAGER_FAKE_NDISC_H__ - -#include "nm-ndisc.h" - -#define NM_TYPE_FAKE_NDISC (nm_fake_ndisc_get_type()) -#define NM_FAKE_NDISC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_FAKE_NDISC, NMFakeNDisc)) -#define NM_FAKE_NDISC_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_FAKE_NDISC, NMFakeNDiscClass)) -#define NM_IS_FAKE_NDISC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_FAKE_NDISC)) -#define NM_IS_FAKE_NDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_FAKE_NDISC)) -#define NM_FAKE_NDISC_GET_CLASS(obj) \ - (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_FAKE_NDISC, NMFakeNDiscClass)) - -#define NM_FAKE_NDISC_RS_SENT "rs-sent" - -typedef struct _NMFakeRNDisc NMFakeNDisc; -typedef struct _NMFakeRNDiscClass NMFakeNDiscClass; - -GType nm_fake_ndisc_get_type(void); - -NMNDisc *nm_fake_ndisc_new(int ifindex, const char *ifname); - -guint nm_fake_ndisc_add_ra(NMFakeNDisc * self, - guint seconds, - NMNDiscDHCPLevel dhcp_level, - int hop_limit, - guint32 mtu); - -void nm_fake_ndisc_add_gateway(NMFakeNDisc * self, - guint ra_id, - const char * addr, - guint32 timestamp, - guint32 lifetime, - NMIcmpv6RouterPref preference); - -void nm_fake_ndisc_add_prefix(NMFakeNDisc * self, - guint ra_id, - const char * network, - guint plen, - const char * gateway, - guint32 timestamp, - guint32 lifetime, - guint32 preferred, - NMIcmpv6RouterPref preference); - -void nm_fake_ndisc_add_dns_server(NMFakeNDisc *self, - guint ra_id, - const char * address, - guint32 timestamp, - guint32 lifetime); - -void nm_fake_ndisc_add_dns_domain(NMFakeNDisc *self, - guint ra_id, - const char * domain, - guint32 timestamp, - guint32 lifetime); - -void nm_fake_ndisc_emit_new_ras(NMFakeNDisc *self); - -gboolean nm_fake_ndisc_done(NMFakeNDisc *self); - -#endif /* __NETWORKMANAGER_FAKE_NDISC_H__ */ diff --git a/src/ndisc/nm-lndp-ndisc.c b/src/ndisc/nm-lndp-ndisc.c deleted file mode 100644 index 22695c32..00000000 --- a/src/ndisc/nm-lndp-ndisc.c +++ /dev/null @@ -1,752 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include "nm-lndp-ndisc.h" - -#include <arpa/inet.h> -#include <netinet/icmp6.h> -/* stdarg.h included because of a bug in ndp.h */ -#include <stdarg.h> -#include <ndp.h> - -#include "nm-ndisc-private.h" -#include "NetworkManagerUtils.h" -#include "platform/nm-platform.h" -#include "platform/nmp-netns.h" - -#define _NMLOG_PREFIX_NAME "ndisc-lndp" - -/*****************************************************************************/ - -typedef struct { - struct ndp *ndp; - GSource * event_source; -} NMLndpNDiscPrivate; - -/*****************************************************************************/ - -struct _NMLndpNDisc { - NMNDisc parent; - NMLndpNDiscPrivate _priv; -}; - -struct _NMLndpNDiscClass { - NMNDiscClass parent; -}; - -/*****************************************************************************/ - -G_DEFINE_TYPE(NMLndpNDisc, nm_lndp_ndisc, NM_TYPE_NDISC) - -#define NM_LNDP_NDISC_GET_PRIVATE(self) \ - _NM_GET_PRIVATE(self, NMLndpNDisc, NM_IS_LNDP_NDISC, NMNDisc) - -/*****************************************************************************/ - -static gboolean -send_rs(NMNDisc *ndisc, GError **error) -{ - NMLndpNDiscPrivate *priv = NM_LNDP_NDISC_GET_PRIVATE(ndisc); - struct ndp_msg * msg; - int errsv; - - errsv = ndp_msg_new(&msg, NDP_MSG_RS); - if (errsv) { - g_set_error_literal(error, - NM_UTILS_ERROR, - NM_UTILS_ERROR_UNKNOWN, - "cannot create router solicitation"); - return FALSE; - } - ndp_msg_ifindex_set(msg, nm_ndisc_get_ifindex(ndisc)); - - errsv = ndp_msg_send(priv->ndp, msg); - ndp_msg_destroy(msg); - if (errsv) { - errsv = nm_errno_native(errsv); - g_set_error(error, - NM_UTILS_ERROR, - NM_UTILS_ERROR_UNKNOWN, - "%s (%d)", - nm_strerror_native(errsv), - errsv); - return FALSE; - } - - return TRUE; -} - -static NMIcmpv6RouterPref -_route_preference_coerce(enum ndp_route_preference pref) -{ - switch (pref) { - case NDP_ROUTE_PREF_LOW: - return NM_ICMPV6_ROUTER_PREF_LOW; - case NDP_ROUTE_PREF_MEDIUM: - return NM_ICMPV6_ROUTER_PREF_MEDIUM; - case NDP_ROUTE_PREF_HIGH: - return NM_ICMPV6_ROUTER_PREF_HIGH; - } - /* unexpected value must be treated as MEDIUM (RFC 4191). */ - return NM_ICMPV6_ROUTER_PREF_MEDIUM; -} - -static int -receive_ra(struct ndp *ndp, struct ndp_msg *msg, gpointer user_data) -{ - NMNDisc * ndisc = (NMNDisc *) user_data; - NMNDiscDataInternal *rdata = ndisc->rdata; - NMNDiscConfigMap changed = 0; - struct ndp_msgra * msgra = ndp_msgra(msg); - struct in6_addr gateway_addr; - gint32 now = nm_utils_get_monotonic_timestamp_sec(); - int offset; - int hop_limit; - guint32 val; - - /* Router discovery is subject to the following RFC documents: - * - * http://tools.ietf.org/html/rfc4861 - * http://tools.ietf.org/html/rfc4862 - * - * The biggest difference from good old DHCP is that all configuration - * items have their own lifetimes and they are merged from various - * sources. Router discovery is *not* contract-based, so there is *no* - * single time when the configuration is finished and updates can - * come at any time. - */ - _LOGD("received router advertisement at %d", (int) now); - - gateway_addr = *ndp_msg_addrto(msg); - if (IN6_IS_ADDR_UNSPECIFIED(&gateway_addr)) - g_return_val_if_reached(0); - - /* DHCP level: - * - * The problem with DHCP level is what to do if subsequent - * router advertisements carry different flags. Currently, we just - * rewrite the flag with every inbound RA. - */ - { - NMNDiscDHCPLevel dhcp_level; - - if (ndp_msgra_flag_managed(msgra)) - dhcp_level = NM_NDISC_DHCP_LEVEL_MANAGED; - else if (ndp_msgra_flag_other(msgra)) - dhcp_level = NM_NDISC_DHCP_LEVEL_OTHERCONF; - else - dhcp_level = NM_NDISC_DHCP_LEVEL_NONE; - - /* when receiving multiple RA (possibly from different routers), - * let's keep the "most managed" level. */ - G_STATIC_ASSERT_EXPR(NM_NDISC_DHCP_LEVEL_MANAGED > NM_NDISC_DHCP_LEVEL_OTHERCONF); - G_STATIC_ASSERT_EXPR(NM_NDISC_DHCP_LEVEL_OTHERCONF > NM_NDISC_DHCP_LEVEL_NONE); - dhcp_level = MAX(dhcp_level, rdata->public.dhcp_level); - - if (dhcp_level != rdata->public.dhcp_level) { - rdata->public.dhcp_level = dhcp_level; - changed |= NM_NDISC_CONFIG_DHCP_LEVEL; - } - } - - /* Default gateway: - * - * Subsequent router advertisements can represent new default gateways - * on the network. We should present all of them in router preference - * order. - */ - { - const NMNDiscGateway gateway = { - .address = gateway_addr, - .timestamp = now, - .lifetime = ndp_msgra_router_lifetime(msgra), - .preference = _route_preference_coerce(ndp_msgra_route_preference(msgra)), - }; - - if (nm_ndisc_add_gateway(ndisc, &gateway)) - changed |= NM_NDISC_CONFIG_GATEWAYS; - } - - /* Addresses & Routes */ - ndp_msg_opt_for_each_offset (offset, msg, NDP_MSG_OPT_PREFIX) { - guint8 r_plen; - struct in6_addr r_network; - - /* Device route */ - - r_plen = ndp_msg_opt_prefix_len(msg, offset); - if (r_plen == 0 || r_plen > 128) - continue; - nm_utils_ip6_address_clear_host_address(&r_network, - ndp_msg_opt_prefix(msg, offset), - r_plen); - - if (IN6_IS_ADDR_UNSPECIFIED(&r_network) || IN6_IS_ADDR_LINKLOCAL(&r_network)) - continue; - - if (ndp_msg_opt_prefix_flag_on_link(msg, offset)) { - const NMNDiscRoute route = { - .network = r_network, - .plen = r_plen, - .timestamp = now, - .lifetime = ndp_msg_opt_prefix_valid_time(msg, offset), - }; - - if (nm_ndisc_add_route(ndisc, &route)) - changed |= NM_NDISC_CONFIG_ROUTES; - } - - /* Address */ - if (r_plen == 64 && ndp_msg_opt_prefix_flag_auto_addr_conf(msg, offset)) { - NMNDiscAddress address = { - .address = r_network, - .timestamp = now, - .lifetime = ndp_msg_opt_prefix_valid_time(msg, offset), - .preferred = ndp_msg_opt_prefix_preferred_time(msg, offset), - }; - - if (address.preferred <= address.lifetime) { - if (nm_ndisc_complete_and_add_address(ndisc, &address, now)) - changed |= NM_NDISC_CONFIG_ADDRESSES; - } - } - } - ndp_msg_opt_for_each_offset (offset, msg, NDP_MSG_OPT_ROUTE) { - NMNDiscRoute route = { - .gateway = gateway_addr, - .plen = ndp_msg_opt_route_prefix_len(msg, offset), - .timestamp = now, - .lifetime = ndp_msg_opt_route_lifetime(msg, offset), - .preference = _route_preference_coerce(ndp_msg_opt_route_preference(msg, offset)), - }; - - if (route.plen == 0 || route.plen > 128) - continue; - - /* Routers through this particular gateway */ - nm_utils_ip6_address_clear_host_address(&route.network, - ndp_msg_opt_route_prefix(msg, offset), - route.plen); - if (nm_ndisc_add_route(ndisc, &route)) - changed |= NM_NDISC_CONFIG_ROUTES; - } - - /* DNS information */ - ndp_msg_opt_for_each_offset (offset, msg, NDP_MSG_OPT_RDNSS) { - struct in6_addr *addr; - int addr_index; - - ndp_msg_opt_rdnss_for_each_addr (addr, addr_index, msg, offset) { - NMNDiscDNSServer dns_server = { - .address = *addr, - .timestamp = now, - .lifetime = ndp_msg_opt_rdnss_lifetime(msg, offset), - }; - - /* Pad the lifetime somewhat to give a bit of slack in cases - * where one RA gets lost or something (which can happen on unreliable - * links like Wi-Fi where certain types of frames are not retransmitted). - * Note that 0 has special meaning and is therefore not adjusted. - */ - if (dns_server.lifetime && dns_server.lifetime < 7200) - dns_server.lifetime = 7200; - if (nm_ndisc_add_dns_server(ndisc, &dns_server)) - changed |= NM_NDISC_CONFIG_DNS_SERVERS; - } - } - ndp_msg_opt_for_each_offset (offset, msg, NDP_MSG_OPT_DNSSL) { - char *domain; - int domain_index; - - ndp_msg_opt_dnssl_for_each_domain (domain, domain_index, msg, offset) { - NMNDiscDNSDomain dns_domain = { - .domain = domain, - .timestamp = now, - .lifetime = ndp_msg_opt_dnssl_lifetime(msg, offset), - }; - - /* Pad the lifetime somewhat to give a bit of slack in cases - * where one RA gets lost or something (which can happen on unreliable - * links like Wi-Fi where certain types of frames are not retransmitted). - * Note that 0 has special meaning and is therefore not adjusted. - */ - if (dns_domain.lifetime && dns_domain.lifetime < 7200) - dns_domain.lifetime = 7200; - if (nm_ndisc_add_dns_domain(ndisc, &dns_domain)) - changed |= NM_NDISC_CONFIG_DNS_DOMAINS; - } - } - - hop_limit = ndp_msgra_curhoplimit(msgra); - if (rdata->public.hop_limit != hop_limit) { - rdata->public.hop_limit = hop_limit; - changed |= NM_NDISC_CONFIG_HOP_LIMIT; - } - - val = ndp_msgra_reachable_time(msgra); - if (val && rdata->public.reachable_time_ms != val) { - rdata->public.reachable_time_ms = val; - changed |= NM_NDISC_CONFIG_REACHABLE_TIME; - } - - val = ndp_msgra_retransmit_time(msgra); - if (val && rdata->public.retrans_timer_ms != val) { - rdata->public.retrans_timer_ms = val; - changed |= NM_NDISC_CONFIG_RETRANS_TIMER; - } - - /* MTU */ - ndp_msg_opt_for_each_offset (offset, msg, NDP_MSG_OPT_MTU) { - guint32 mtu = ndp_msg_opt_mtu(msg, offset); - if (mtu >= 1280) { - if (rdata->public.mtu != mtu) { - rdata->public.mtu = mtu; - changed |= NM_NDISC_CONFIG_MTU; - } - } else { - /* All sorts of bad things would happen if we accepted this. - * Kernel would set it, but would flush out all IPv6 addresses away - * from the link, even the link-local, and we wouldn't be able to - * listen for further RAs that could fix the MTU. */ - _LOGW("MTU too small for IPv6 ignored: %d", mtu); - } - } - - nm_ndisc_ra_received(ndisc, now, changed); - return 0; -} - -static void * -_ndp_msg_add_option(struct ndp_msg *msg, int len) -{ - void *ret = (uint8_t *) msg + ndp_msg_payload_len(msg); - - len += ndp_msg_payload_len(msg); - if (len > ndp_msg_payload_maxlen(msg)) - return NULL; - - ndp_msg_payload_len_set(msg, len); - return ret; -} - -#define NM_ND_OPT_RDNSS 25 -typedef struct { - struct nd_opt_hdr header; - uint16_t reserved; - uint32_t lifetime; - struct in6_addr addrs[0]; -} NMLndpRdnssOption; - -#define NM_ND_OPT_DNSSL 31 -typedef struct { - struct nd_opt_hdr header; - uint16_t reserved; - uint32_t lifetime; - char search_list[0]; -} NMLndpDnsslOption; - -static gboolean -send_ra(NMNDisc *ndisc, GError **error) -{ - NMLndpNDiscPrivate * priv = NM_LNDP_NDISC_GET_PRIVATE(ndisc); - NMNDiscDataInternal * rdata = ndisc->rdata; - gint32 now = nm_utils_get_monotonic_timestamp_sec(); - int errsv; - struct in6_addr * addr; - struct ndp_msg * msg; - struct nd_opt_prefix_info *prefix; - int i; - - errsv = ndp_msg_new(&msg, NDP_MSG_RA); - if (errsv) { - g_set_error_literal(error, - NM_UTILS_ERROR, - NM_UTILS_ERROR_UNKNOWN, - "cannot create a router advertisement"); - return FALSE; - } - - ndp_msg_ifindex_set(msg, nm_ndisc_get_ifindex(ndisc)); - - /* Multicast to all nodes. */ - addr = ndp_msg_addrto(msg); - addr->s6_addr32[0] = htonl(0xff020000); - addr->s6_addr32[1] = 0; - addr->s6_addr32[2] = 0; - addr->s6_addr32[3] = htonl(0x1); - - ndp_msgra_router_lifetime_set(ndp_msgra(msg), NM_NDISC_ROUTER_LIFETIME); - - /* The device let us know about all addresses that the device got - * whose prefixes are suitable for delegating. Let's announce them. */ - for (i = 0; i < rdata->addresses->len; i++) { - NMNDiscAddress *address = &g_array_index(rdata->addresses, NMNDiscAddress, i); - guint32 age = NM_CLAMP((gint64) now - (gint64) address->timestamp, 0, G_MAXUINT32 - 1); - guint32 lifetime = address->lifetime; - guint32 preferred = address->preferred; - - /* Clamp the life times if they're not forever. */ - if (lifetime != NM_NDISC_INFINITY) - lifetime = lifetime > age ? lifetime - age : 0; - if (preferred != NM_NDISC_INFINITY) - preferred = preferred > age ? preferred - age : 0; - - prefix = _ndp_msg_add_option(msg, sizeof(*prefix)); - if (!prefix) { - /* Maybe we could sent separate RAs, but why bother... */ - _LOGW("The RA is too big, had to omit some some prefixes."); - break; - } - - prefix->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION; - prefix->nd_opt_pi_len = 4; - prefix->nd_opt_pi_prefix_len = 64; - prefix->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_ONLINK; - prefix->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO; - prefix->nd_opt_pi_valid_time = htonl(lifetime); - prefix->nd_opt_pi_preferred_time = htonl(preferred); - prefix->nd_opt_pi_prefix.s6_addr32[0] = address->address.s6_addr32[0]; - prefix->nd_opt_pi_prefix.s6_addr32[1] = address->address.s6_addr32[1]; - prefix->nd_opt_pi_prefix.s6_addr32[2] = 0; - prefix->nd_opt_pi_prefix.s6_addr32[3] = 0; - } - - if (rdata->dns_servers->len) { - NMLndpRdnssOption *option; - int len = sizeof(*option) + sizeof(option->addrs[0]) * rdata->dns_servers->len; - - option = _ndp_msg_add_option(msg, len); - if (option) { - option->header.nd_opt_type = NM_ND_OPT_RDNSS; - option->header.nd_opt_len = len / 8; - option->lifetime = htonl(900); - - for (i = 0; i < rdata->dns_servers->len; i++) { - NMNDiscDNSServer *dns_server = - &g_array_index(rdata->dns_servers, NMNDiscDNSServer, i); - option->addrs[i] = dns_server->address; - } - } else { - _LOGW("The RA is too big, had to omit DNS information."); - } - } - - if (rdata->dns_domains->len) { - NMLndpDnsslOption *option; - NMNDiscDNSDomain * dns_server; - int len = sizeof(*option); - char * search_list; - - for (i = 0; i < rdata->dns_domains->len; i++) { - dns_server = &g_array_index(rdata->dns_domains, NMNDiscDNSDomain, i); - len += strlen(dns_server->domain) + 2; - } - len = (len + 8) & ~0x7; - - option = _ndp_msg_add_option(msg, len); - if (option) { - option->header.nd_opt_type = NM_ND_OPT_DNSSL; - option->header.nd_opt_len = len / 8; - option->lifetime = htonl(900); - - search_list = option->search_list; - for (i = 0; i < rdata->dns_domains->len; i++) { - NMNDiscDNSDomain *dns_domain = - &g_array_index(rdata->dns_domains, NMNDiscDNSDomain, i); - uint8_t domain_len = strlen(dns_domain->domain); - - *search_list++ = domain_len; - memcpy(search_list, dns_domain->domain, domain_len); - search_list += domain_len; - *search_list++ = '\0'; - } - } else { - _LOGW("The RA is too big, had to omit DNS search list."); - } - } - - errsv = ndp_msg_send(priv->ndp, msg); - - ndp_msg_destroy(msg); - if (errsv) { - errsv = nm_errno_native(errsv); - g_set_error(error, - NM_UTILS_ERROR, - NM_UTILS_ERROR_UNKNOWN, - "%s (%d)", - nm_strerror_native(errsv), - errsv); - return FALSE; - } - - return TRUE; -} - -static int -receive_rs(struct ndp *ndp, struct ndp_msg *msg, gpointer user_data) -{ - NMNDisc *ndisc = user_data; - - nm_ndisc_rs_received(ndisc); - return 0; -} - -static gboolean -event_ready(int fd, GIOCondition condition, gpointer user_data) -{ - gs_unref_object NMNDisc *ndisc = g_object_ref(NM_NDISC(user_data)); - nm_auto_pop_netns NMPNetns *netns = NULL; - NMLndpNDiscPrivate * priv = NM_LNDP_NDISC_GET_PRIVATE(ndisc); - - _LOGD("processing libndp events"); - - if (!nm_ndisc_netns_push(ndisc, &netns)) { - /* something is very wrong. Stop handling events. */ - nm_clear_g_source_inst(&priv->event_source); - return G_SOURCE_REMOVE; - } - - ndp_callall_eventfd_handler(priv->ndp); - return G_SOURCE_CONTINUE; -} - -static void -start(NMNDisc *ndisc) -{ - NMLndpNDiscPrivate *priv = NM_LNDP_NDISC_GET_PRIVATE(ndisc); - int fd; - - g_return_if_fail(!priv->event_source); - - fd = ndp_get_eventfd(priv->ndp); - - priv->event_source = - nm_g_unix_fd_source_new(fd, G_IO_IN, G_PRIORITY_DEFAULT, event_ready, ndisc, NULL); - g_source_attach(priv->event_source, NULL); - - /* Flush any pending messages to avoid using obsolete information */ - event_ready(fd, 0, ndisc); - - switch (nm_ndisc_get_node_type(ndisc)) { - case NM_NDISC_NODE_TYPE_HOST: - ndp_msgrcv_handler_register(priv->ndp, - receive_ra, - NDP_MSG_RA, - nm_ndisc_get_ifindex(ndisc), - ndisc); - break; - case NM_NDISC_NODE_TYPE_ROUTER: - ndp_msgrcv_handler_register(priv->ndp, - receive_rs, - NDP_MSG_RS, - nm_ndisc_get_ifindex(ndisc), - ndisc); - break; - default: - g_assert_not_reached(); - } -} - -static void -_cleanup(NMNDisc *ndisc) -{ - NMLndpNDiscPrivate *priv = NM_LNDP_NDISC_GET_PRIVATE(ndisc); - - nm_clear_g_source_inst(&priv->event_source); - - if (priv->ndp) { - switch (nm_ndisc_get_node_type(ndisc)) { - case NM_NDISC_NODE_TYPE_HOST: - ndp_msgrcv_handler_unregister(priv->ndp, - receive_ra, - NDP_MSG_RA, - nm_ndisc_get_ifindex(ndisc), - ndisc); - break; - case NM_NDISC_NODE_TYPE_ROUTER: - ndp_msgrcv_handler_unregister(priv->ndp, - receive_rs, - NDP_MSG_RS, - nm_ndisc_get_ifindex(ndisc), - ndisc); - break; - default: - nm_assert_not_reached(); - break; - } - ndp_close(priv->ndp); - priv->ndp = NULL; - } -} - -static void -stop(NMNDisc *ndisc) -{ - _cleanup(ndisc); -} - -/*****************************************************************************/ - -static int -ipv6_sysctl_get(NMPlatform *platform, - const char *ifname, - const char *property, - int min, - int max, - int defval) -{ - return nm_platform_sysctl_ip_conf_get_int_checked(platform, - AF_INET6, - ifname, - property, - 10, - min, - max, - defval); -} - -void -nm_lndp_ndisc_get_sysctl(NMPlatform *platform, - const char *ifname, - int * out_max_addresses, - int * out_router_solicitations, - int * out_router_solicitation_interval, - guint32 * out_default_ra_timeout) -{ - int router_solicitation_interval = 0; - int router_solicitations = 0; - - if (out_max_addresses) { - *out_max_addresses = ipv6_sysctl_get(platform, - ifname, - "max_addresses", - 0, - G_MAXINT32, - NM_NDISC_MAX_ADDRESSES_DEFAULT); - } - if (out_router_solicitations || out_default_ra_timeout) { - router_solicitations = ipv6_sysctl_get(platform, - ifname, - "router_solicitations", - 1, - G_MAXINT32, - NM_NDISC_ROUTER_SOLICITATIONS_DEFAULT); - NM_SET_OUT(out_router_solicitations, router_solicitations); - } - if (out_router_solicitation_interval || out_default_ra_timeout) { - router_solicitation_interval = - ipv6_sysctl_get(platform, - ifname, - "router_solicitation_interval", - 1, - G_MAXINT32, - NM_NDISC_ROUTER_SOLICITATION_INTERVAL_DEFAULT); - NM_SET_OUT(out_router_solicitation_interval, router_solicitation_interval); - } - if (out_default_ra_timeout) { - *out_default_ra_timeout = - NM_MAX((((gint64) router_solicitations) * router_solicitation_interval) + 1, 30); - } -} - -/*****************************************************************************/ - -static void -nm_lndp_ndisc_init(NMLndpNDisc *lndp_ndisc) -{} - -NMNDisc * -nm_lndp_ndisc_new(NMPlatform * platform, - int ifindex, - const char * ifname, - NMUtilsStableType stable_type, - const char * network_id, - NMSettingIP6ConfigAddrGenMode addr_gen_mode, - NMNDiscNodeType node_type, - int max_addresses, - int router_solicitations, - int router_solicitation_interval, - guint32 ra_timeout, - GError ** error) -{ - nm_auto_pop_netns NMPNetns *netns = NULL; - NMNDisc * ndisc; - NMLndpNDiscPrivate * priv; - int errsv; - - g_return_val_if_fail(NM_IS_PLATFORM(platform), NULL); - g_return_val_if_fail(!error || !*error, NULL); - g_return_val_if_fail(network_id, NULL); - - if (!nm_platform_netns_push(platform, &netns)) - return NULL; - - ndisc = g_object_new(NM_TYPE_LNDP_NDISC, - NM_NDISC_PLATFORM, - platform, - NM_NDISC_STABLE_TYPE, - (int) stable_type, - NM_NDISC_IFINDEX, - ifindex, - NM_NDISC_IFNAME, - ifname, - NM_NDISC_NETWORK_ID, - network_id, - NM_NDISC_ADDR_GEN_MODE, - (int) addr_gen_mode, - NM_NDISC_NODE_TYPE, - (int) node_type, - NM_NDISC_MAX_ADDRESSES, - max_addresses, - NM_NDISC_ROUTER_SOLICITATIONS, - router_solicitations, - NM_NDISC_ROUTER_SOLICITATION_INTERVAL, - router_solicitation_interval, - NM_NDISC_RA_TIMEOUT, - (guint) ra_timeout, - NULL); - - priv = NM_LNDP_NDISC_GET_PRIVATE(ndisc); - - errsv = ndp_open(&priv->ndp); - - if (errsv != 0) { - errsv = nm_errno_native(errsv); - g_set_error(error, - NM_UTILS_ERROR, - NM_UTILS_ERROR_UNKNOWN, - "failure creating libndp socket: %s (%d)", - nm_strerror_native(errsv), - errsv); - g_object_unref(ndisc); - return NULL; - } - return ndisc; -} - -static void -dispose(GObject *object) -{ - NMNDisc *ndisc = NM_NDISC(object); - - _cleanup(ndisc); - - G_OBJECT_CLASS(nm_lndp_ndisc_parent_class)->dispose(object); -} - -static void -nm_lndp_ndisc_class_init(NMLndpNDiscClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS(klass); - NMNDiscClass *ndisc_class = NM_NDISC_CLASS(klass); - - object_class->dispose = dispose; - ndisc_class->start = start; - ndisc_class->stop = stop; - ndisc_class->send_rs = send_rs; - ndisc_class->send_ra = send_ra; -} diff --git a/src/ndisc/nm-lndp-ndisc.h b/src/ndisc/nm-lndp-ndisc.h deleted file mode 100644 index a275be3e..00000000 --- a/src/ndisc/nm-lndp-ndisc.h +++ /dev/null @@ -1,46 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#ifndef __NETWORKMANAGER_LNDP_NDISC_H__ -#define __NETWORKMANAGER_LNDP_NDISC_H__ - -#include "nm-ndisc.h" -#include "nm-core-utils.h" - -#define NM_TYPE_LNDP_NDISC (nm_lndp_ndisc_get_type()) -#define NM_LNDP_NDISC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_LNDP_NDISC, NMLndpNDisc)) -#define NM_LNDP_NDISC_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_LNDP_NDISC, NMLndpNDiscClass)) -#define NM_IS_LNDP_NDISC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_LNDP_NDISC)) -#define NM_IS_LNDP_NDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_LNDP_NDISC)) -#define NM_LNDP_NDISC_GET_CLASS(obj) \ - (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_LNDP_NDISC, NMLndpNDiscClass)) - -typedef struct _NMLndpNDisc NMLndpNDisc; -typedef struct _NMLndpNDiscClass NMLndpNDiscClass; - -GType nm_lndp_ndisc_get_type(void); - -NMNDisc *nm_lndp_ndisc_new(NMPlatform * platform, - int ifindex, - const char * ifname, - NMUtilsStableType stable_type, - const char * network_id, - NMSettingIP6ConfigAddrGenMode addr_gen_mode, - NMNDiscNodeType node_type, - int max_addresses, - int router_solicitations, - int router_solicitation_interval, - guint32 ra_timeout, - GError ** error); - -void nm_lndp_ndisc_get_sysctl(NMPlatform *platform, - const char *ifname, - int * out_max_addresses, - int * out_router_solicitations, - int * out_router_solicitation_interval, - guint32 * out_default_ra_timeout); - -#endif /* __NETWORKMANAGER_LNDP_NDISC_H__ */ diff --git a/src/ndisc/nm-ndisc-private.h b/src/ndisc/nm-ndisc-private.h deleted file mode 100644 index a79a920b..00000000 --- a/src/ndisc/nm-ndisc-private.h +++ /dev/null @@ -1,67 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2015 Red Hat, Inc. - */ - -#ifndef __NETWORKMANAGER_NDISC_PRIVATE_H__ -#define __NETWORKMANAGER_NDISC_PRIVATE_H__ - -#include "nm-ndisc.h" - -/* Functions only used by ndisc implementations */ - -struct _NMNDiscDataInternal { - NMNDiscData public; - GArray *gateways; - GArray *addresses; - GArray *routes; - GArray *dns_servers; - GArray *dns_domains; -}; - -typedef struct _NMNDiscDataInternal NMNDiscDataInternal; - -void nm_ndisc_ra_received(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap changed); -void nm_ndisc_rs_received(NMNDisc *ndisc); - -gboolean nm_ndisc_add_gateway(NMNDisc *ndisc, const NMNDiscGateway *new); -gboolean nm_ndisc_complete_and_add_address(NMNDisc *ndisc, const NMNDiscAddress *new, gint32 now_s); -gboolean nm_ndisc_add_route(NMNDisc *ndisc, const NMNDiscRoute *new); -gboolean nm_ndisc_add_dns_server(NMNDisc *ndisc, const NMNDiscDNSServer *new); -gboolean nm_ndisc_add_dns_domain(NMNDisc *ndisc, const NMNDiscDNSDomain *new); - -/*****************************************************************************/ - -#define _NMLOG_DOMAIN LOGD_IP6 -#define _NMLOG(level, ...) _LOG(level, _NMLOG_DOMAIN, ndisc, __VA_ARGS__) - -#define _LOG(level, domain, self, ...) \ - G_STMT_START \ - { \ - const NMLogLevel __level = (level); \ - const NMLogDomain __domain = (domain); \ - \ - if (nm_logging_enabled(__level, __domain)) { \ - NMNDisc *const __self = (self); \ - char __prefix[64]; \ - const char * __ifname = __self ? nm_ndisc_get_ifname(__self) : NULL; \ - \ - _nm_log(__level, \ - __domain, \ - 0, \ - __ifname, \ - NULL, \ - "%s: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__), \ - (__self ? nm_sprintf_buf(__prefix, \ - "%s[%p,%s%s%s]", \ - _NMLOG_PREFIX_NAME, \ - __self, \ - NM_PRINT_FMT_QUOTE_STRING(__ifname)) \ - : _NMLOG_PREFIX_NAME) _NM_UTILS_MACRO_REST(__VA_ARGS__)); \ - } \ - } \ - G_STMT_END - -/*****************************************************************************/ - -#endif /* __NETWORKMANAGER_NDISC_PRIVATE_H__ */ diff --git a/src/ndisc/nm-ndisc.c b/src/ndisc/nm-ndisc.c deleted file mode 100644 index f8805c02..00000000 --- a/src/ndisc/nm-ndisc.c +++ /dev/null @@ -1,1696 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include "nm-ndisc.h" - -#include <stdlib.h> -#include <arpa/inet.h> - -#include "nm-setting-ip6-config.h" - -#include "nm-ndisc-private.h" -#include "nm-utils.h" -#include "platform/nm-platform.h" -#include "platform/nmp-netns.h" -#include "nm-l3-config-data.h" - -#define _NMLOG_PREFIX_NAME "ndisc" - -/*****************************************************************************/ - -struct _NMNDiscPrivate { - /* this *must* be the first field. */ - NMNDiscDataInternal rdata; - - char * last_error; - GSource *ra_timeout_source; - - union { - gint32 solicitations_left; - gint32 announcements_left; - }; - union { - guint send_rs_id; - guint send_ra_id; - }; - union { - gint32 last_rs; - gint32 last_ra; - }; - guint timeout_id; /* prefix/dns/etc lifetime timeout */ - NMUtilsIPv6IfaceId iid; - - /* immutable values: */ - int ifindex; - char * ifname; - char * network_id; - NMSettingIP6ConfigAddrGenMode addr_gen_mode; - NMUtilsStableType stable_type; - guint32 ra_timeout; - gint32 max_addresses; - gint32 router_solicitations; - gint32 router_solicitation_interval; - NMNDiscNodeType node_type; - - NMPlatform *platform; - NMPNetns * netns; -}; - -typedef struct _NMNDiscPrivate NMNDiscPrivate; - -NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_PLATFORM, - PROP_IFINDEX, - PROP_IFNAME, - PROP_STABLE_TYPE, - PROP_NETWORK_ID, - PROP_ADDR_GEN_MODE, - PROP_MAX_ADDRESSES, - PROP_RA_TIMEOUT, - PROP_ROUTER_SOLICITATIONS, - PROP_ROUTER_SOLICITATION_INTERVAL, - PROP_NODE_TYPE, ); - -enum { CONFIG_RECEIVED, RA_TIMEOUT_SIGNAL, LAST_SIGNAL }; - -static guint signals[LAST_SIGNAL] = {0}; - -G_DEFINE_TYPE(NMNDisc, nm_ndisc, G_TYPE_OBJECT) - -#define NM_NDISC_GET_PRIVATE(self) _NM_GET_PRIVATE_PTR(self, NMNDisc, NM_IS_NDISC) - -/*****************************************************************************/ - -static void _config_changed_log(NMNDisc *ndisc, NMNDiscConfigMap changed); - -/*****************************************************************************/ - -NML3ConfigData * -nm_ndisc_data_to_l3cd(NMDedupMultiIndex * multi_idx, - int ifindex, - const NMNDiscData * rdata, - NMSettingIP6ConfigPrivacy ip6_privacy, - guint32 route_table, - guint32 route_metric, - gboolean kernel_support_rta_pref, - gboolean kernel_support_extended_ifa_flags) -{ - nm_auto_unref_l3cd_init NML3ConfigData *l3cd = NULL; - guint32 ifa_flags; - guint8 plen; - guint i; - - l3cd = nm_l3_config_data_new(multi_idx, ifindex); - - nm_l3_config_data_set_source(l3cd, NM_IP_CONFIG_SOURCE_NDISC); - - nm_l3_config_data_set_ip6_privacy(l3cd, ip6_privacy); - - /* Check, whether kernel is recent enough to help user space handling RA. - * If it's not supported, we have no ipv6-privacy and must add autoconf - * addresses as /128. The reason for the /128 is to prevent the kernel - * from adding a prefix route for this address. */ - ifa_flags = 0; - if (kernel_support_extended_ifa_flags) { - ifa_flags |= IFA_F_NOPREFIXROUTE; - if (NM_IN_SET(ip6_privacy, - NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_TEMP_ADDR, - NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_PUBLIC_ADDR)) - ifa_flags |= IFA_F_MANAGETEMPADDR; - plen = 64; - } else - plen = 128; - - for (i = 0; i < rdata->addresses_n; i++) { - const NMNDiscAddress *ndisc_addr = &rdata->addresses[i]; - NMPlatformIP6Address a; - - a = (NMPlatformIP6Address){ - .ifindex = ifindex, - .address = ndisc_addr->address, - .plen = plen, - .timestamp = ndisc_addr->timestamp, - .lifetime = ndisc_addr->lifetime, - .preferred = MIN(ndisc_addr->lifetime, ndisc_addr->preferred), - .addr_source = NM_IP_CONFIG_SOURCE_NDISC, - .n_ifa_flags = ifa_flags, - }; - - nm_l3_config_data_add_address_6(l3cd, &a); - } - - for (i = 0; i < rdata->routes_n; i++) { - const NMNDiscRoute *ndisc_route = &rdata->routes[i]; - NMPlatformIP6Route r; - - r = (NMPlatformIP6Route){ - .ifindex = ifindex, - .network = ndisc_route->network, - .plen = ndisc_route->plen, - .gateway = ndisc_route->gateway, - .rt_source = NM_IP_CONFIG_SOURCE_NDISC, - .table_coerced = nm_platform_route_table_coerce(route_table), - .metric = route_metric, - .rt_pref = ndisc_route->preference, - }; - nm_assert((NMIcmpv6RouterPref) r.rt_pref == ndisc_route->preference); - - nm_l3_config_data_add_route_6(l3cd, &r); - } - - if (rdata->gateways_n > 0) { - const NMIcmpv6RouterPref first_pref = rdata->gateways[0].preference; - NMPlatformIP6Route r = { - .rt_source = NM_IP_CONFIG_SOURCE_NDISC, - .ifindex = ifindex, - .table_coerced = nm_platform_route_table_coerce(route_table), - .metric = route_metric, - }; - - for (i = 0; i < rdata->gateways_n; i++) { - r.gateway = rdata->gateways[i].address; - r.rt_pref = rdata->gateways[i].preference; - nm_assert((NMIcmpv6RouterPref) r.rt_pref == rdata->gateways[i].preference); - nm_l3_config_data_add_route_6(l3cd, &r); - - if (first_pref != rdata->gateways[i].preference && !kernel_support_rta_pref) { - /* We are unable to configure a router preference. Hence, we skip all gateways - * with a different preference from the first gateway. Note, that the gateways - * are sorted in order of highest to lowest preference. */ - break; - } - } - } - - for (i = 0; i < rdata->dns_servers_n; i++) - nm_l3_config_data_add_nameserver(l3cd, AF_INET6, &rdata->dns_servers[i].address); - - for (i = 0; i < rdata->dns_domains_n; i++) - nm_l3_config_data_add_search(l3cd, AF_INET6, rdata->dns_domains[i].domain); - - nm_l3_config_data_set_ndisc_hop_limit(l3cd, rdata->hop_limit); - nm_l3_config_data_set_ndisc_reachable_time_msec(l3cd, rdata->reachable_time_ms); - nm_l3_config_data_set_ndisc_retrans_timer_msec(l3cd, rdata->retrans_timer_ms); - - nm_l3_config_data_set_ip6_mtu(l3cd, rdata->mtu); - - return g_steal_pointer(&l3cd); -} - -/*****************************************************************************/ - -static guint8 -_preference_to_priority(NMIcmpv6RouterPref pref) -{ - switch (pref) { - case NM_ICMPV6_ROUTER_PREF_LOW: - return 1; - case NM_ICMPV6_ROUTER_PREF_MEDIUM: - return 2; - case NM_ICMPV6_ROUTER_PREF_HIGH: - return 3; - case NM_ICMPV6_ROUTER_PREF_INVALID: - break; - } - return 0; -} - -/*****************************************************************************/ - -/* we rely on the fact, that _EXPIRY_INFINITY > any other valid gint64 timestamps. */ -#define _EXPIRY_INFINITY G_MAXINT64 - -static gint64 -get_expiry_time(guint32 timestamp, guint32 lifetime) -{ - nm_assert(timestamp > 0); - nm_assert(timestamp <= G_MAXINT32); - - if (lifetime == NM_NDISC_INFINITY) - return _EXPIRY_INFINITY; - return ((gint64) timestamp) + ((gint64) lifetime); -} - -#define get_expiry(item) \ - ({ \ - typeof(item) _item = (item); \ - nm_assert(_item); \ - get_expiry_time(_item->timestamp, _item->lifetime); \ - }) - -#define get_expiry_half(item) \ - ({ \ - typeof(item) _item = (item); \ - nm_assert(_item); \ - (_item->lifetime == NM_NDISC_INFINITY) \ - ? _EXPIRY_INFINITY \ - : get_expiry_time(_item->timestamp, _item->lifetime / 2); \ - }) - -#define get_expiry_preferred(item) \ - ({ \ - typeof(item) _item = (item); \ - nm_assert(_item); \ - get_expiry_time(_item->timestamp, _item->preferred); \ - }) - -static gboolean -expiry_next(gint32 now_s, gint64 expiry_timestamp, gint32 *nextevent) -{ - gint32 e; - - if (expiry_timestamp == _EXPIRY_INFINITY) - return TRUE; - e = MIN(expiry_timestamp, ((gint64)(G_MAXINT32 - 1))); - if (now_s >= e) - return FALSE; - if (nextevent) { - if (*nextevent > e) - *nextevent = e; - } - return TRUE; -} - -static const char * -_get_exp(char *buf, gsize buf_size, gint64 now_ns, gint64 expiry_time) -{ - int l; - - if (expiry_time == _EXPIRY_INFINITY) - return "permanent"; - l = g_snprintf(buf, - buf_size, - "%.4f", - ((double) ((expiry_time * NM_UTILS_NSEC_PER_SEC) - now_ns)) - / ((double) NM_UTILS_NSEC_PER_SEC)); - nm_assert(l < buf_size); - return buf; -} - -#define get_exp(buf, now_ns, item) _get_exp((buf), G_N_ELEMENTS(buf), (now_ns), (get_expiry(item))) - -/*****************************************************************************/ - -NMPNetns * -nm_ndisc_netns_get(NMNDisc *self) -{ - g_return_val_if_fail(NM_IS_NDISC(self), NULL); - - return NM_NDISC_GET_PRIVATE(self)->netns; -} - -gboolean -nm_ndisc_netns_push(NMNDisc *self, NMPNetns **netns) -{ - NMNDiscPrivate *priv; - - g_return_val_if_fail(NM_IS_NDISC(self), FALSE); - - priv = NM_NDISC_GET_PRIVATE(self); - if (priv->netns && !nmp_netns_push(priv->netns)) { - NM_SET_OUT(netns, NULL); - return FALSE; - } - - NM_SET_OUT(netns, priv->netns); - return TRUE; -} - -/*****************************************************************************/ - -int -nm_ndisc_get_ifindex(NMNDisc *self) -{ - g_return_val_if_fail(NM_IS_NDISC(self), 0); - - return NM_NDISC_GET_PRIVATE(self)->ifindex; -} - -const char * -nm_ndisc_get_ifname(NMNDisc *self) -{ - g_return_val_if_fail(NM_IS_NDISC(self), NULL); - - return NM_NDISC_GET_PRIVATE(self)->ifname; -} - -NMNDiscNodeType -nm_ndisc_get_node_type(NMNDisc *self) -{ - g_return_val_if_fail(NM_IS_NDISC(self), NM_NDISC_NODE_TYPE_INVALID); - - return NM_NDISC_GET_PRIVATE(self)->node_type; -} - -/*****************************************************************************/ - -static void -_ASSERT_data_gateways(const NMNDiscDataInternal *data) -{ -#if NM_MORE_ASSERTS > 10 - guint i, j; - const NMNDiscGateway *item_prev = NULL; - - if (!data->gateways->len) - return; - - for (i = 0; i < data->gateways->len; i++) { - const NMNDiscGateway *item = &g_array_index(data->gateways, NMNDiscGateway, i); - - nm_assert(!IN6_IS_ADDR_UNSPECIFIED(&item->address)); - nm_assert(item->timestamp > 0 && item->timestamp <= G_MAXINT32); - for (j = 0; j < i; j++) { - const NMNDiscGateway *item2 = &g_array_index(data->gateways, NMNDiscGateway, j); - - nm_assert(!IN6_ARE_ADDR_EQUAL(&item->address, &item2->address)); - } - - nm_assert(item->lifetime > 0); - if (i > 0) - nm_assert(_preference_to_priority(item_prev->preference) - >= _preference_to_priority(item->preference)); - - item_prev = item; - } -#endif -} - -/*****************************************************************************/ - -static const NMNDiscData * -_data_complete(NMNDiscDataInternal *data) -{ - _ASSERT_data_gateways(data); - -#define _SET(data, field) \ - G_STMT_START \ - { \ - if ((data->public.field##_n = data->field->len) > 0) \ - data->public.field = (gpointer) data->field->data; \ - else \ - data->public.field = NULL; \ - } \ - G_STMT_END - _SET(data, gateways); - _SET(data, addresses); - _SET(data, routes); - _SET(data, dns_servers); - _SET(data, dns_domains); -#undef _SET - return &data->public; -} - -void -nm_ndisc_emit_config_change(NMNDisc *self, NMNDiscConfigMap changed) -{ - _config_changed_log(self, changed); - g_signal_emit(self, - signals[CONFIG_RECEIVED], - 0, - _data_complete(&NM_NDISC_GET_PRIVATE(self)->rdata), - (guint) changed); -} - -/*****************************************************************************/ - -gboolean -nm_ndisc_add_gateway(NMNDisc *ndisc, const NMNDiscGateway *new) -{ - NMNDiscDataInternal *rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - guint i; - guint insert_idx = G_MAXUINT; - - for (i = 0; i < rdata->gateways->len;) { - NMNDiscGateway *item = &g_array_index(rdata->gateways, NMNDiscGateway, i); - - if (IN6_ARE_ADDR_EQUAL(&item->address, &new->address)) { - if (new->lifetime == 0) { - g_array_remove_index(rdata->gateways, i); - _ASSERT_data_gateways(rdata); - return TRUE; - } - - if (item->preference != new->preference) { - g_array_remove_index(rdata->gateways, i); - continue; - } - - if (get_expiry(item) == get_expiry(new)) - return FALSE; - - *item = *new; - _ASSERT_data_gateways(rdata); - return TRUE; - } - - /* Put before less preferable gateways. */ - if (_preference_to_priority(item->preference) < _preference_to_priority(new->preference) - && insert_idx == G_MAXUINT) - insert_idx = i; - - i++; - } - - if (new->lifetime) { - g_array_insert_val(rdata->gateways, - insert_idx == G_MAXUINT ? rdata->gateways->len : insert_idx, - *new); - } - _ASSERT_data_gateways(rdata); - return !!new->lifetime; -} - -/** - * complete_address: - * @ndisc: the #NMNDisc - * @addr: the #NMNDiscAddress - * - * Adds the host part to the address that has network part set. - * If the address already has a host part, add a different host part - * if possible (this is useful in case DAD failed). - * - * Can fail if a different address can not be generated (DAD failure - * for an EUI-64 address or DAD counter overflow). - * - * Returns: %TRUE if the address could be completed, %FALSE otherwise. - **/ -static gboolean -complete_address(NMNDisc *ndisc, NMNDiscAddress *addr) -{ - NMNDiscPrivate *priv; - GError * error = NULL; - - g_return_val_if_fail(NM_IS_NDISC(ndisc), FALSE); - - priv = NM_NDISC_GET_PRIVATE(ndisc); - if (priv->addr_gen_mode == NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY) { - if (!nm_utils_ipv6_addr_set_stable_privacy(priv->stable_type, - &addr->address, - priv->ifname, - priv->network_id, - addr->dad_counter++, - &error)) { - _LOGW("complete-address: failed to generate an stable-privacy address: %s", - error->message); - g_clear_error(&error); - return FALSE; - } - _LOGD("complete-address: using an stable-privacy address"); - return TRUE; - } - - if (!priv->iid.id) { - _LOGW("complete-address: can't generate an EUI-64 address: no interface identifier"); - return FALSE; - } - - if (addr->address.s6_addr32[2] == 0x0 && addr->address.s6_addr32[3] == 0x0) { - _LOGD("complete-address: adding an EUI-64 address"); - nm_utils_ipv6_addr_set_interface_identifier(&addr->address, priv->iid); - return TRUE; - } - - _LOGW("complete-address: can't generate a new EUI-64 address"); - return FALSE; -} - -static gboolean -nm_ndisc_add_address(NMNDisc *ndisc, const NMNDiscAddress *new, gint32 now_s, gboolean from_ra) -{ - NMNDiscPrivate * priv = NM_NDISC_GET_PRIVATE(ndisc); - NMNDiscDataInternal *rdata = &priv->rdata; - NMNDiscAddress new2; - NMNDiscAddress * existing = NULL; - guint i; - - nm_assert(new); - nm_assert(new->timestamp > 0 && new->timestamp < G_MAXINT32); - nm_assert(!IN6_IS_ADDR_UNSPECIFIED(&new->address)); - nm_assert(!IN6_IS_ADDR_LINKLOCAL(&new->address)); - nm_assert(new->preferred <= new->lifetime); - nm_assert(!from_ra || now_s > 0); - - for (i = 0; i < rdata->addresses->len; i++) { - NMNDiscAddress *item = &g_array_index(rdata->addresses, NMNDiscAddress, i); - - if (from_ra) { - /* RFC4862 5.5.3.d, we find an existing address with the same prefix. - * (note that all prefixes at this point have implicitly length /64). */ - if (memcmp(&item->address, &new->address, 8) == 0) { - existing = item; - break; - } - } else { - if (IN6_ARE_ADDR_EQUAL(&item->address, &new->address)) { - existing = item; - break; - } - } - } - - if (existing) { - if (from_ra) { - const gint32 NM_NDISC_PREFIX_LFT_MIN = 7200; /* seconds, RFC4862 5.5.3.e */ - gint64 old_expiry_lifetime, old_expiry_preferred; - - old_expiry_lifetime = get_expiry(existing); - old_expiry_preferred = get_expiry_preferred(existing); - - if (new->lifetime == NM_NDISC_INFINITY) - existing->lifetime = NM_NDISC_INFINITY; - else { - gint64 new_lifetime, remaining_lifetime; - - /* see RFC4862 5.5.3.e */ - if (existing->lifetime == NM_NDISC_INFINITY) - remaining_lifetime = G_MAXINT64; - else - remaining_lifetime = ((gint64) existing->timestamp) - + ((gint64) existing->lifetime) - ((gint64) now_s); - new_lifetime = - ((gint64) new->timestamp) + ((gint64) new->lifetime) - ((gint64) now_s); - - if (new_lifetime > (gint64) NM_NDISC_PREFIX_LFT_MIN - || new_lifetime > remaining_lifetime) { - existing->timestamp = now_s; - existing->lifetime = CLAMP(new_lifetime, (gint64) 0, (gint64)(G_MAXUINT32 - 1)); - } else if (remaining_lifetime <= (gint64) NM_NDISC_PREFIX_LFT_MIN) { - /* keep the current lifetime. */ - } else { - existing->timestamp = now_s; - existing->lifetime = NM_NDISC_PREFIX_LFT_MIN; - } - } - - if (new->preferred == NM_NDISC_INFINITY) { - nm_assert(existing->lifetime == NM_NDISC_INFINITY); - existing->preferred = new->preferred; - } else { - existing->preferred = NM_CLAMP(((gint64) new->timestamp) + ((gint64) new->preferred) - - ((gint64) existing->timestamp), - 0, - G_MAXUINT32 - 1); - if (existing->lifetime != NM_NDISC_INFINITY) - existing->preferred = MIN(existing->preferred, existing->lifetime); - } - - return old_expiry_lifetime != get_expiry(existing) - || old_expiry_preferred != get_expiry_preferred(existing); - } - - if (new->lifetime == 0) { - g_array_remove_index(rdata->addresses, i); - return TRUE; - } - - if (get_expiry(existing) == get_expiry(new) - && get_expiry_preferred(existing) == get_expiry_preferred(new)) - return FALSE; - - existing->timestamp = new->timestamp; - existing->lifetime = new->lifetime; - existing->preferred = new->preferred; - return TRUE; - } - - /* we create at most max_addresses autoconf addresses. This is different from - * what the kernel does, because it considers *all* addresses (including - * static and other temporary addresses). - **/ - if (priv->max_addresses && rdata->addresses->len >= priv->max_addresses) - return FALSE; - - if (new->lifetime == 0) - return FALSE; - - if (from_ra) { - new2 = *new; - new2.dad_counter = 0; - if (!complete_address(ndisc, &new2)) - return FALSE; - new = &new2; - } - - g_array_append_val(rdata->addresses, *new); - return TRUE; -} - -gboolean -nm_ndisc_complete_and_add_address(NMNDisc *ndisc, const NMNDiscAddress *new, gint32 now_s) -{ - return nm_ndisc_add_address(ndisc, new, now_s, TRUE); -} - -gboolean -nm_ndisc_add_route(NMNDisc *ndisc, const NMNDiscRoute *new) -{ - NMNDiscPrivate * priv; - NMNDiscDataInternal *rdata; - guint i; - guint insert_idx = G_MAXUINT; - - if (new->plen == 0 || new->plen > 128) { - /* Only expect non-default routes. The router has no idea what the - * local configuration or user preferences are, so sending routes - * with a prefix length of 0 must be ignored by NMNDisc. - * - * Also, upper layers also don't expect that NMNDisc exposes routes - * with a plen or zero or larger then 128. - */ - g_return_val_if_reached(FALSE); - } - - priv = NM_NDISC_GET_PRIVATE(ndisc); - rdata = &priv->rdata; - - for (i = 0; i < rdata->routes->len;) { - NMNDiscRoute *item = &g_array_index(rdata->routes, NMNDiscRoute, i); - - if (IN6_ARE_ADDR_EQUAL(&item->network, &new->network) && item->plen == new->plen) { - if (new->lifetime == 0) { - g_array_remove_index(rdata->routes, i); - return TRUE; - } - - if (item->preference != new->preference) { - g_array_remove_index(rdata->routes, i); - continue; - } - - if (get_expiry(item) == get_expiry(new) - && IN6_ARE_ADDR_EQUAL(&item->gateway, &new->gateway)) - return FALSE; - - *item = *new; - return TRUE; - } - - /* Put before less preferable routes. */ - if (_preference_to_priority(item->preference) < _preference_to_priority(new->preference) - && insert_idx == G_MAXUINT) - insert_idx = i; - - i++; - } - - if (new->lifetime) { - g_array_insert_val(rdata->routes, insert_idx == G_MAXUINT ? 0u : insert_idx, *new); - } - return !!new->lifetime; -} - -gboolean -nm_ndisc_add_dns_server(NMNDisc *ndisc, const NMNDiscDNSServer *new) -{ - NMNDiscPrivate * priv; - NMNDiscDataInternal *rdata; - guint i; - - priv = NM_NDISC_GET_PRIVATE(ndisc); - rdata = &priv->rdata; - - for (i = 0; i < rdata->dns_servers->len; i++) { - NMNDiscDNSServer *item = &g_array_index(rdata->dns_servers, NMNDiscDNSServer, i); - - if (IN6_ARE_ADDR_EQUAL(&item->address, &new->address)) { - if (new->lifetime == 0) { - g_array_remove_index(rdata->dns_servers, i); - return TRUE; - } - - if (get_expiry(item) == get_expiry(new)) - return FALSE; - - *item = *new; - return TRUE; - } - } - - if (new->lifetime) - g_array_append_val(rdata->dns_servers, *new); - return !!new->lifetime; -} - -/* Copies new->domain if 'new' is added to the dns_domains list */ -gboolean -nm_ndisc_add_dns_domain(NMNDisc *ndisc, const NMNDiscDNSDomain *new) -{ - NMNDiscPrivate * priv; - NMNDiscDataInternal *rdata; - NMNDiscDNSDomain * item; - guint i; - - priv = NM_NDISC_GET_PRIVATE(ndisc); - rdata = &priv->rdata; - - for (i = 0; i < rdata->dns_domains->len; i++) { - item = &g_array_index(rdata->dns_domains, NMNDiscDNSDomain, i); - - if (!g_strcmp0(item->domain, new->domain)) { - if (new->lifetime == 0) { - g_array_remove_index(rdata->dns_domains, i); - return TRUE; - } - - if (get_expiry(item) == get_expiry(new)) - return FALSE; - - item->timestamp = new->timestamp; - item->lifetime = new->lifetime; - return TRUE; - } - } - - if (new->lifetime) { - g_array_append_val(rdata->dns_domains, *new); - item = &g_array_index(rdata->dns_domains, NMNDiscDNSDomain, rdata->dns_domains->len - 1); - item->domain = g_strdup(new->domain); - } - return !!new->lifetime; -} - -/*****************************************************************************/ - -#define _MAYBE_WARN(...) \ - G_STMT_START \ - { \ - gboolean _different_message; \ - \ - _different_message = g_strcmp0(priv->last_error, error->message) != 0; \ - _NMLOG(_different_message ? LOGL_WARN : LOGL_DEBUG, __VA_ARGS__); \ - if (_different_message) { \ - nm_clear_g_free(&priv->last_error); \ - priv->last_error = g_strdup(error->message); \ - } \ - } \ - G_STMT_END - -static gboolean -send_rs_timeout(NMNDisc *ndisc) -{ - nm_auto_pop_netns NMPNetns *netns = NULL; - NMNDiscClass * klass = NM_NDISC_GET_CLASS(ndisc); - NMNDiscPrivate * priv = NM_NDISC_GET_PRIVATE(ndisc); - GError * error = NULL; - - priv->send_rs_id = 0; - - if (!nm_ndisc_netns_push(ndisc, &netns)) - return G_SOURCE_REMOVE; - - if (klass->send_rs(ndisc, &error)) { - _LOGD("router solicitation sent"); - priv->solicitations_left--; - nm_clear_g_free(&priv->last_error); - } else { - _MAYBE_WARN("failure sending router solicitation: %s", error->message); - g_clear_error(&error); - } - - priv->last_rs = nm_utils_get_monotonic_timestamp_sec(); - if (priv->solicitations_left > 0) { - _LOGD("scheduling router solicitation retry in %d seconds.", - (int) priv->router_solicitation_interval); - priv->send_rs_id = g_timeout_add_seconds(priv->router_solicitation_interval, - (GSourceFunc) send_rs_timeout, - ndisc); - } else { - _LOGD("did not receive a router advertisement after %d solicitations.", - (int) priv->router_solicitations); - } - - return G_SOURCE_REMOVE; -} - -static void -solicit_routers(NMNDisc *ndisc) -{ - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - gint32 now, next; - gint64 t; - - if (priv->send_rs_id) - return; - - now = nm_utils_get_monotonic_timestamp_sec(); - priv->solicitations_left = priv->router_solicitations; - - t = (((gint64) priv->last_rs) + priv->router_solicitation_interval) - now; - next = CLAMP(t, 0, G_MAXINT32); - _LOGD("scheduling explicit router solicitation request in %" G_GINT32_FORMAT " seconds.", next); - priv->send_rs_id = g_timeout_add_seconds((guint32) next, (GSourceFunc) send_rs_timeout, ndisc); -} - -static gboolean -announce_router(NMNDisc *ndisc) -{ - nm_auto_pop_netns NMPNetns *netns = NULL; - NMNDiscClass * klass = NM_NDISC_GET_CLASS(ndisc); - NMNDiscPrivate * priv = NM_NDISC_GET_PRIVATE(ndisc); - GError * error = NULL; - - if (!nm_ndisc_netns_push(ndisc, &netns)) - return G_SOURCE_REMOVE; - - priv->last_ra = nm_utils_get_monotonic_timestamp_sec(); - if (klass->send_ra(ndisc, &error)) { - _LOGD("router advertisement sent"); - nm_clear_g_free(&priv->last_error); - } else { - _MAYBE_WARN("failure sending router advertisement: %s", error->message); - g_clear_error(&error); - } - - if (--priv->announcements_left) { - _LOGD("will resend an initial router advertisement"); - - /* Schedule next initial announcement retransmit. */ - priv->send_ra_id = - g_timeout_add_seconds(g_random_int_range(NM_NDISC_ROUTER_ADVERT_DELAY, - NM_NDISC_ROUTER_ADVERT_INITIAL_INTERVAL), - (GSourceFunc) announce_router, - ndisc); - } else { - _LOGD("will send an unsolicited router advertisement"); - - /* Schedule next unsolicited announcement. */ - priv->announcements_left = 1; - priv->send_ra_id = g_timeout_add_seconds(NM_NDISC_ROUTER_ADVERT_MAX_INTERVAL, - (GSourceFunc) announce_router, - ndisc); - } - - return G_SOURCE_REMOVE; -} - -static void -announce_router_initial(NMNDisc *ndisc) -{ - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - - _LOGD("will send an initial router advertisement"); - - /* Retry three more times. */ - priv->announcements_left = NM_NDISC_ROUTER_ADVERTISEMENTS_DEFAULT; - - /* Unschedule an unsolicited resend if we are allowed to send now. */ - if (G_LIKELY(nm_utils_get_monotonic_timestamp_sec() - priv->last_ra - > NM_NDISC_ROUTER_ADVERT_DELAY)) - nm_clear_g_source(&priv->send_ra_id); - - /* Schedule the initial send rather early. Clamp the delay by minimal - * delay and not the initial advert internal so that we start fast. */ - if (G_LIKELY(!priv->send_ra_id)) { - priv->send_ra_id = - g_timeout_add_seconds(g_random_int_range(0, NM_NDISC_ROUTER_ADVERT_DELAY), - (GSourceFunc) announce_router, - ndisc); - } -} - -static void -announce_router_solicited(NMNDisc *ndisc) -{ - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - - _LOGD("will send an solicited router advertisement"); - - /* Unschedule an unsolicited resend if we are allowed to send now. */ - if (nm_utils_get_monotonic_timestamp_sec() - priv->last_ra > NM_NDISC_ROUTER_ADVERT_DELAY) - nm_clear_g_source(&priv->send_ra_id); - - if (!priv->send_ra_id) { - priv->send_ra_id = g_timeout_add(g_random_int_range(0, NM_NDISC_ROUTER_ADVERT_DELAY_MS), - (GSourceFunc) announce_router, - ndisc); - } -} - -/*****************************************************************************/ - -void -nm_ndisc_set_config(NMNDisc * ndisc, - const GArray *addresses, - const GArray *dns_servers, - const GArray *dns_domains) -{ - gboolean changed = FALSE; - guint i; - - for (i = 0; i < addresses->len; i++) { - if (nm_ndisc_add_address(ndisc, &g_array_index(addresses, NMNDiscAddress, i), 0, FALSE)) - changed = TRUE; - } - - for (i = 0; i < dns_servers->len; i++) { - if (nm_ndisc_add_dns_server(ndisc, &g_array_index(dns_servers, NMNDiscDNSServer, i))) - changed = TRUE; - } - - for (i = 0; i < dns_domains->len; i++) { - if (nm_ndisc_add_dns_domain(ndisc, &g_array_index(dns_domains, NMNDiscDNSDomain, i))) - changed = TRUE; - } - - if (changed) - announce_router_initial(ndisc); -} - -/** - * nm_ndisc_set_iid: - * @ndisc: the #NMNDisc - * @iid: the new interface ID - * - * Sets the "Modified EUI-64" interface ID to be used when generating - * IPv6 addresses using received prefixes. Identifiers are either generated - * from the hardware addresses or manually set by the operator with - * "ip token" command. - * - * Upon token change (or initial setting) all addresses generated using - * the old identifier are removed. The caller should ensure the addresses - * will be reset by soliciting router advertisements. - * - * In case the stable privacy addressing is used %FALSE is returned and - * addresses are left untouched. - * - * Returns: %TRUE if addresses need to be regenerated, %FALSE otherwise. - **/ -gboolean -nm_ndisc_set_iid(NMNDisc *ndisc, const NMUtilsIPv6IfaceId iid) -{ - NMNDiscPrivate * priv; - NMNDiscDataInternal *rdata; - - g_return_val_if_fail(NM_IS_NDISC(ndisc), FALSE); - - priv = NM_NDISC_GET_PRIVATE(ndisc); - rdata = &priv->rdata; - - if (priv->iid.id != iid.id) { - priv->iid = iid; - - if (priv->addr_gen_mode == NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY) - return FALSE; - - if (rdata->addresses->len) { - _LOGD("IPv6 interface identifier changed, flushing addresses"); - g_array_remove_range(rdata->addresses, 0, rdata->addresses->len); - nm_ndisc_emit_config_change(ndisc, NM_NDISC_CONFIG_ADDRESSES); - solicit_routers(ndisc); - } - return TRUE; - } - - return FALSE; -} - -static gboolean -ndisc_ra_timeout_cb(gpointer user_data) -{ - NMNDisc *ndisc = NM_NDISC(user_data); - - nm_clear_g_source_inst(&NM_NDISC_GET_PRIVATE(ndisc)->ra_timeout_source); - g_signal_emit(ndisc, signals[RA_TIMEOUT_SIGNAL], 0); - return G_SOURCE_REMOVE; -} - -void -nm_ndisc_start(NMNDisc *ndisc) -{ - nm_auto_pop_netns NMPNetns *netns = NULL; - NMNDiscPrivate * priv; - - g_return_if_fail(NM_IS_NDISC(ndisc)); - - priv = NM_NDISC_GET_PRIVATE(ndisc); - - nm_assert(NM_NDISC_GET_CLASS(ndisc)->start); - nm_assert(!priv->ra_timeout_source); - - _LOGD("starting neighbor discovery for ifindex %d%s", - priv->ifindex, - priv->node_type == NM_NDISC_NODE_TYPE_HOST ? " (solicit)" : " (announce)"); - - if (!nm_ndisc_netns_push(ndisc, &netns)) - return; - - NM_NDISC_GET_CLASS(ndisc)->start(ndisc); - - if (priv->node_type == NM_NDISC_NODE_TYPE_HOST) { - G_STATIC_ASSERT_EXPR(NM_RA_TIMEOUT_DEFAULT == 0); - G_STATIC_ASSERT_EXPR(NM_RA_TIMEOUT_INFINITY == G_MAXINT32); - nm_assert(priv->ra_timeout > 0u); - nm_assert(priv->ra_timeout <= NM_RA_TIMEOUT_INFINITY); - - if (priv->ra_timeout < NM_RA_TIMEOUT_INFINITY) { - guint timeout_msec; - - _LOGD("scheduling RA timeout in %u seconds", priv->ra_timeout); - if (priv->ra_timeout < G_MAXUINT / 1000u) - timeout_msec = priv->ra_timeout * 1000u; - else - timeout_msec = G_MAXUINT; - priv->ra_timeout_source = nm_g_timeout_source_new(timeout_msec, - G_PRIORITY_DEFAULT, - ndisc_ra_timeout_cb, - ndisc, - NULL); - g_source_attach(priv->ra_timeout_source, NULL); - } - - solicit_routers(ndisc); - return; - } - - nm_assert(priv->ra_timeout == 0u); - nm_assert(priv->node_type == NM_NDISC_NODE_TYPE_ROUTER); - announce_router_initial(ndisc); -} - -void -nm_ndisc_stop(NMNDisc *ndisc) -{ - nm_auto_pop_netns NMPNetns *netns = NULL; - NMNDiscDataInternal * rdata; - NMNDiscPrivate * priv; - - g_return_if_fail(NM_IS_NDISC(ndisc)); - - priv = NM_NDISC_GET_PRIVATE(ndisc); - - nm_assert(NM_NDISC_GET_CLASS(ndisc)->stop); - - _LOGD("stopping neighbor discovery for ifindex %d", priv->ifindex); - - if (!nm_ndisc_netns_push(ndisc, &netns)) - return; - - NM_NDISC_GET_CLASS(ndisc)->stop(ndisc); - - rdata = &priv->rdata; - - g_array_set_size(rdata->gateways, 0); - g_array_set_size(rdata->addresses, 0); - g_array_set_size(rdata->routes, 0); - g_array_set_size(rdata->dns_servers, 0); - g_array_set_size(rdata->dns_domains, 0); - priv->rdata.public.hop_limit = 64; - - /* Start at very low number so that last_rs - router_solicitation_interval - * is much lower than nm_utils_get_monotonic_timestamp_sec() at startup. - */ - priv->last_rs = G_MININT32; - nm_clear_g_source_inst(&priv->ra_timeout_source); - nm_clear_g_source(&priv->send_rs_id); - nm_clear_g_source(&priv->send_ra_id); - nm_clear_g_free(&priv->last_error); - nm_clear_g_source(&priv->timeout_id); - - priv->solicitations_left = 0; - priv->announcements_left = 0; - - priv->last_rs = G_MININT32; - priv->last_ra = G_MININT32; -} - -NMNDiscConfigMap -nm_ndisc_dad_failed(NMNDisc *ndisc, const struct in6_addr *address, gboolean emit_changed_signal) -{ - NMNDiscDataInternal *rdata; - guint i; - gboolean changed = FALSE; - - rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - - for (i = 0; i < rdata->addresses->len;) { - NMNDiscAddress *item = &g_array_index(rdata->addresses, NMNDiscAddress, i); - - if (IN6_ARE_ADDR_EQUAL(&item->address, address)) { - char sbuf[NM_UTILS_INET_ADDRSTRLEN]; - - _LOGD("DAD failed for discovered address %s", _nm_utils_inet6_ntop(address, sbuf)); - changed = TRUE; - if (!complete_address(ndisc, item)) { - g_array_remove_index(rdata->addresses, i); - continue; - } - } - i++; - } - - if (emit_changed_signal && changed) - nm_ndisc_emit_config_change(ndisc, NM_NDISC_CONFIG_ADDRESSES); - - return changed ? NM_NDISC_CONFIG_ADDRESSES : NM_NDISC_CONFIG_NONE; -} - -#define CONFIG_MAP_MAX_STR 7 - -static void -config_map_to_string(NMNDiscConfigMap map, char *p) -{ - if (map & NM_NDISC_CONFIG_DHCP_LEVEL) - *p++ = 'd'; - if (map & NM_NDISC_CONFIG_GATEWAYS) - *p++ = 'G'; - if (map & NM_NDISC_CONFIG_ADDRESSES) - *p++ = 'A'; - if (map & NM_NDISC_CONFIG_ROUTES) - *p++ = 'R'; - if (map & NM_NDISC_CONFIG_DNS_SERVERS) - *p++ = 'S'; - if (map & NM_NDISC_CONFIG_DNS_DOMAINS) - *p++ = 'D'; - *p = '\0'; -} - -static const char * -dhcp_level_to_string(NMNDiscDHCPLevel dhcp_level) -{ - switch (dhcp_level) { - case NM_NDISC_DHCP_LEVEL_NONE: - return "none"; - case NM_NDISC_DHCP_LEVEL_OTHERCONF: - return "otherconf"; - case NM_NDISC_DHCP_LEVEL_MANAGED: - return "managed"; - default: - return "INVALID"; - } -} - -static void -_config_changed_log(NMNDisc *ndisc, NMNDiscConfigMap changed) -{ - NMNDiscPrivate * priv; - NMNDiscDataInternal *rdata; - guint i; - char changedstr[CONFIG_MAP_MAX_STR]; - char addrstr[INET6_ADDRSTRLEN]; - char str_pref[35]; - char str_exp[100]; - gint64 now_ns; - - if (!_LOGD_ENABLED()) - return; - - now_ns = nm_utils_get_monotonic_timestamp_nsec(); - - priv = NM_NDISC_GET_PRIVATE(ndisc); - rdata = &priv->rdata; - - config_map_to_string(changed, changedstr); - _LOGD("neighbor discovery configuration changed [%s]:", changedstr); - _LOGD(" dhcp-level %s", dhcp_level_to_string(priv->rdata.public.dhcp_level)); - - if (rdata->public.hop_limit) - _LOGD(" hop limit : %d", rdata->public.hop_limit); - if (rdata->public.reachable_time_ms) - _LOGD(" reachable time : %u", (guint) rdata->public.reachable_time_ms); - if (rdata->public.retrans_timer_ms) - _LOGD(" retrans timer : %u", (guint) rdata->public.retrans_timer_ms); - - for (i = 0; i < rdata->gateways->len; i++) { - NMNDiscGateway *gateway = &g_array_index(rdata->gateways, NMNDiscGateway, i); - - inet_ntop(AF_INET6, &gateway->address, addrstr, sizeof(addrstr)); - _LOGD(" gateway %s pref %s exp %s", - addrstr, - nm_icmpv6_router_pref_to_string(gateway->preference, str_pref, sizeof(str_pref)), - get_exp(str_exp, now_ns, gateway)); - } - for (i = 0; i < rdata->addresses->len; i++) { - const NMNDiscAddress *address = &g_array_index(rdata->addresses, NMNDiscAddress, i); - - inet_ntop(AF_INET6, &address->address, addrstr, sizeof(addrstr)); - _LOGD(" address %s exp %s", addrstr, get_exp(str_exp, now_ns, address)); - } - for (i = 0; i < rdata->routes->len; i++) { - NMNDiscRoute *route = &g_array_index(rdata->routes, NMNDiscRoute, i); - char sbuf[NM_UTILS_INET_ADDRSTRLEN]; - - inet_ntop(AF_INET6, &route->network, addrstr, sizeof(addrstr)); - _LOGD(" route %s/%u via %s pref %s exp %s", - addrstr, - (guint) route->plen, - _nm_utils_inet6_ntop(&route->gateway, sbuf), - nm_icmpv6_router_pref_to_string(route->preference, str_pref, sizeof(str_pref)), - get_exp(str_exp, now_ns, route)); - } - for (i = 0; i < rdata->dns_servers->len; i++) { - NMNDiscDNSServer *dns_server = &g_array_index(rdata->dns_servers, NMNDiscDNSServer, i); - - inet_ntop(AF_INET6, &dns_server->address, addrstr, sizeof(addrstr)); - _LOGD(" dns_server %s exp %s", addrstr, get_exp(str_exp, now_ns, dns_server)); - } - for (i = 0; i < rdata->dns_domains->len; i++) { - NMNDiscDNSDomain *dns_domain = &g_array_index(rdata->dns_domains, NMNDiscDNSDomain, i); - - _LOGD(" dns_domain %s exp %s", dns_domain->domain, get_exp(str_exp, now_ns, dns_domain)); - } -} - -static void -clean_gateways(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent) -{ - NMNDiscDataInternal *rdata; - guint i; - - rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - - for (i = 0; i < rdata->gateways->len;) { - NMNDiscGateway *item = &g_array_index(rdata->gateways, NMNDiscGateway, i); - - if (!expiry_next(now, get_expiry(item), nextevent)) { - g_array_remove_index(rdata->gateways, i); - *changed |= NM_NDISC_CONFIG_GATEWAYS; - continue; - } - - i++; - } - - _ASSERT_data_gateways(rdata); -} - -static void -clean_addresses(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent) -{ - NMNDiscDataInternal *rdata; - guint i; - - rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - - for (i = 0; i < rdata->addresses->len;) { - const NMNDiscAddress *item = &g_array_index(rdata->addresses, NMNDiscAddress, i); - - if (!expiry_next(now, get_expiry(item), nextevent)) { - g_array_remove_index(rdata->addresses, i); - *changed |= NM_NDISC_CONFIG_ADDRESSES; - continue; - } - - i++; - } -} - -static void -clean_routes(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent) -{ - NMNDiscDataInternal *rdata; - guint i; - - rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - - for (i = 0; i < rdata->routes->len;) { - NMNDiscRoute *item = &g_array_index(rdata->routes, NMNDiscRoute, i); - - if (!expiry_next(now, get_expiry(item), nextevent)) { - g_array_remove_index(rdata->routes, i); - *changed |= NM_NDISC_CONFIG_ROUTES; - continue; - } - - i++; - } -} - -static void -clean_dns_servers(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent) -{ - NMNDiscDataInternal *rdata; - guint i; - - rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - - for (i = 0; i < rdata->dns_servers->len;) { - NMNDiscDNSServer *item = &g_array_index(rdata->dns_servers, NMNDiscDNSServer, i); - gint64 refresh; - - refresh = get_expiry_half(item); - if (refresh != _EXPIRY_INFINITY) { - if (!expiry_next(now, get_expiry(item), NULL)) { - g_array_remove_index(rdata->dns_servers, i); - *changed |= NM_NDISC_CONFIG_DNS_SERVERS; - continue; - } - - if (now >= refresh) - solicit_routers(ndisc); - else if (*nextevent > refresh) - *nextevent = refresh; - } - i++; - } -} - -static void -clean_dns_domains(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent) -{ - NMNDiscDataInternal *rdata; - guint i; - - rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata; - - for (i = 0; i < rdata->dns_domains->len;) { - NMNDiscDNSDomain *item = &g_array_index(rdata->dns_domains, NMNDiscDNSDomain, i); - gint64 refresh; - - refresh = get_expiry_half(item); - if (refresh != _EXPIRY_INFINITY) { - if (!expiry_next(now, get_expiry(item), NULL)) { - g_array_remove_index(rdata->dns_domains, i); - *changed |= NM_NDISC_CONFIG_DNS_DOMAINS; - continue; - } - - if (now >= refresh) - solicit_routers(ndisc); - else if (*nextevent > refresh) - *nextevent = refresh; - } - i++; - } -} - -static gboolean timeout_cb(gpointer user_data); - -static void -check_timestamps(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap changed) -{ - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - /* Use a magic date in the distant future (~68 years) */ - gint32 nextevent = G_MAXINT32; - - nm_clear_g_source(&priv->timeout_id); - - clean_gateways(ndisc, now, &changed, &nextevent); - clean_addresses(ndisc, now, &changed, &nextevent); - clean_routes(ndisc, now, &changed, &nextevent); - clean_dns_servers(ndisc, now, &changed, &nextevent); - clean_dns_domains(ndisc, now, &changed, &nextevent); - - if (nextevent != G_MAXINT32) { - if (nextevent <= now) - g_return_if_reached(); - _LOGD("scheduling next now/lifetime check: %d seconds", (int) (nextevent - now)); - priv->timeout_id = g_timeout_add_seconds(nextevent - now, timeout_cb, ndisc); - } - - if (changed) - nm_ndisc_emit_config_change(ndisc, changed); -} - -static gboolean -timeout_cb(gpointer user_data) -{ - NMNDisc *self = user_data; - - NM_NDISC_GET_PRIVATE(self)->timeout_id = 0; - check_timestamps(self, nm_utils_get_monotonic_timestamp_sec(), 0); - return G_SOURCE_REMOVE; -} - -void -nm_ndisc_ra_received(NMNDisc *ndisc, gint32 now, NMNDiscConfigMap changed) -{ - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - - nm_clear_g_source_inst(&priv->ra_timeout_source); - nm_clear_g_source(&priv->send_rs_id); - nm_clear_g_free(&priv->last_error); - check_timestamps(ndisc, now, changed); -} - -void -nm_ndisc_rs_received(NMNDisc *ndisc) -{ - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - - nm_clear_g_free(&priv->last_error); - announce_router_solicited(ndisc); -} - -/*****************************************************************************/ - -static void -dns_domain_free(gpointer data) -{ - g_free(((NMNDiscDNSDomain *) (data))->domain); -} - -static void -set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) -{ - NMNDisc * self = NM_NDISC(object); - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(self); - - switch (prop_id) { - case PROP_PLATFORM: - /* construct-only */ - priv->platform = g_value_get_object(value) ?: NM_PLATFORM_GET; - if (!priv->platform) - g_return_if_reached(); - - g_object_ref(priv->platform); - - priv->netns = nm_platform_netns_get(priv->platform); - if (priv->netns) - g_object_ref(priv->netns); - - g_return_if_fail(!priv->netns || priv->netns == nmp_netns_get_current()); - break; - case PROP_IFINDEX: - /* construct-only */ - priv->ifindex = g_value_get_int(value); - g_return_if_fail(priv->ifindex > 0); - break; - case PROP_IFNAME: - /* construct-only */ - priv->ifname = g_value_dup_string(value); - g_return_if_fail(priv->ifname && priv->ifname[0]); - break; - case PROP_STABLE_TYPE: - /* construct-only */ - priv->stable_type = g_value_get_int(value); - break; - case PROP_NETWORK_ID: - /* construct-only */ - priv->network_id = g_value_dup_string(value); - g_return_if_fail(priv->network_id); - break; - case PROP_ADDR_GEN_MODE: - /* construct-only */ - priv->addr_gen_mode = g_value_get_int(value); - break; - case PROP_MAX_ADDRESSES: - /* construct-only */ - priv->max_addresses = g_value_get_int(value); - break; - case PROP_RA_TIMEOUT: - /* construct-only */ - priv->ra_timeout = g_value_get_uint(value); - nm_assert(priv->ra_timeout <= NM_RA_TIMEOUT_INFINITY); - break; - case PROP_ROUTER_SOLICITATIONS: - /* construct-only */ - priv->router_solicitations = g_value_get_int(value); - break; - case PROP_ROUTER_SOLICITATION_INTERVAL: - /* construct-only */ - priv->router_solicitation_interval = g_value_get_int(value); - break; - case PROP_NODE_TYPE: - /* construct-only */ - priv->node_type = g_value_get_int(value); - nm_assert(NM_IN_SET(priv->node_type, NM_NDISC_NODE_TYPE_HOST, NM_NDISC_NODE_TYPE_ROUTER)); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); - break; - } -} - -static void -nm_ndisc_init(NMNDisc *ndisc) -{ - NMNDiscPrivate * priv; - NMNDiscDataInternal *rdata; - - priv = G_TYPE_INSTANCE_GET_PRIVATE(ndisc, NM_TYPE_NDISC, NMNDiscPrivate); - ndisc->_priv = priv; - - rdata = &priv->rdata; - - rdata->gateways = g_array_new(FALSE, FALSE, sizeof(NMNDiscGateway)); - rdata->addresses = g_array_new(FALSE, FALSE, sizeof(NMNDiscAddress)); - rdata->routes = g_array_new(FALSE, FALSE, sizeof(NMNDiscRoute)); - rdata->dns_servers = g_array_new(FALSE, FALSE, sizeof(NMNDiscDNSServer)); - rdata->dns_domains = g_array_new(FALSE, FALSE, sizeof(NMNDiscDNSDomain)); - g_array_set_clear_func(rdata->dns_domains, dns_domain_free); - priv->rdata.public.hop_limit = 64; - - /* Start at very low number so that last_rs - router_solicitation_interval - * is much lower than nm_utils_get_monotonic_timestamp_sec() at startup. - */ - priv->last_rs = G_MININT32; -} - -static void -dispose(GObject *object) -{ - NMNDisc * ndisc = NM_NDISC(object); - NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE(ndisc); - - nm_clear_g_source_inst(&priv->ra_timeout_source); - nm_clear_g_source(&priv->send_rs_id); - nm_clear_g_source(&priv->send_ra_id); - nm_clear_g_free(&priv->last_error); - - nm_clear_g_source(&priv->timeout_id); - - G_OBJECT_CLASS(nm_ndisc_parent_class)->dispose(object); -} - -static void -finalize(GObject *object) -{ - NMNDisc * ndisc = NM_NDISC(object); - NMNDiscPrivate * priv = NM_NDISC_GET_PRIVATE(ndisc); - NMNDiscDataInternal *rdata = &priv->rdata; - - g_free(priv->ifname); - g_free(priv->network_id); - - g_array_unref(rdata->gateways); - g_array_unref(rdata->addresses); - g_array_unref(rdata->routes); - g_array_unref(rdata->dns_servers); - g_array_unref(rdata->dns_domains); - - g_clear_object(&priv->netns); - g_clear_object(&priv->platform); - - G_OBJECT_CLASS(nm_ndisc_parent_class)->finalize(object); -} - -static void -nm_ndisc_class_init(NMNDiscClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS(klass); - - g_type_class_add_private(klass, sizeof(NMNDiscPrivate)); - - object_class->set_property = set_property; - object_class->dispose = dispose; - object_class->finalize = finalize; - - obj_properties[PROP_PLATFORM] = - g_param_spec_object(NM_NDISC_PLATFORM, - "", - "", - NM_TYPE_PLATFORM, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_IFINDEX] = - g_param_spec_int(NM_NDISC_IFINDEX, - "", - "", - 0, - G_MAXINT, - 0, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_IFNAME] = - g_param_spec_string(NM_NDISC_IFNAME, - "", - "", - NULL, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_STABLE_TYPE] = - g_param_spec_int(NM_NDISC_STABLE_TYPE, - "", - "", - NM_UTILS_STABLE_TYPE_UUID, - NM_UTILS_STABLE_TYPE_RANDOM, - NM_UTILS_STABLE_TYPE_UUID, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_NETWORK_ID] = - g_param_spec_string(NM_NDISC_NETWORK_ID, - "", - "", - NULL, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_ADDR_GEN_MODE] = - g_param_spec_int(NM_NDISC_ADDR_GEN_MODE, - "", - "", - NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64, - NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY, - NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_MAX_ADDRESSES] = - g_param_spec_int(NM_NDISC_MAX_ADDRESSES, - "", - "", - 0, - G_MAXINT32, - NM_NDISC_MAX_ADDRESSES_DEFAULT, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - G_STATIC_ASSERT_EXPR(G_MAXINT32 == NM_RA_TIMEOUT_INFINITY); - obj_properties[PROP_RA_TIMEOUT] = - g_param_spec_uint(NM_NDISC_RA_TIMEOUT, - "", - "", - 0, - G_MAXINT32, - 0, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_ROUTER_SOLICITATIONS] = - g_param_spec_int(NM_NDISC_ROUTER_SOLICITATIONS, - "", - "", - 1, - G_MAXINT32, - NM_NDISC_ROUTER_SOLICITATIONS_DEFAULT, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_ROUTER_SOLICITATION_INTERVAL] = - g_param_spec_int(NM_NDISC_ROUTER_SOLICITATION_INTERVAL, - "", - "", - 1, - G_MAXINT32, - NM_NDISC_ROUTER_SOLICITATION_INTERVAL_DEFAULT, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - obj_properties[PROP_NODE_TYPE] = - g_param_spec_int(NM_NDISC_NODE_TYPE, - "", - "", - NM_NDISC_NODE_TYPE_INVALID, - NM_NDISC_NODE_TYPE_ROUTER, - NM_NDISC_NODE_TYPE_INVALID, - G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); - g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties); - - signals[CONFIG_RECEIVED] = g_signal_new(NM_NDISC_CONFIG_RECEIVED, - G_OBJECT_CLASS_TYPE(klass), - G_SIGNAL_RUN_FIRST, - 0, - NULL, - NULL, - NULL, - G_TYPE_NONE, - 2, - G_TYPE_POINTER, - G_TYPE_UINT); - signals[RA_TIMEOUT_SIGNAL] = g_signal_new(NM_NDISC_RA_TIMEOUT_SIGNAL, - G_OBJECT_CLASS_TYPE(klass), - G_SIGNAL_RUN_FIRST, - 0, - NULL, - NULL, - NULL, - G_TYPE_NONE, - 0); -} diff --git a/src/ndisc/nm-ndisc.h b/src/ndisc/nm-ndisc.h deleted file mode 100644 index 0578c45b..00000000 --- a/src/ndisc/nm-ndisc.h +++ /dev/null @@ -1,233 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#ifndef __NETWORKMANAGER_NDISC_H__ -#define __NETWORKMANAGER_NDISC_H__ - -#include <stdlib.h> -#include <netinet/in.h> -#include <linux/if_addr.h> - -#include "nm-setting-ip6-config.h" -#include "NetworkManagerUtils.h" - -#include "platform/nm-platform.h" -#include "platform/nmp-object.h" - -#define NM_RA_TIMEOUT_DEFAULT ((guint32) 0) -#define NM_RA_TIMEOUT_INFINITY ((guint32) G_MAXINT32) - -#define NM_TYPE_NDISC (nm_ndisc_get_type()) -#define NM_NDISC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_NDISC, NMNDisc)) -#define NM_NDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_NDISC, NMNDiscClass)) -#define NM_IS_NDISC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_NDISC)) -#define NM_IS_NDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_NDISC)) -#define NM_NDISC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_NDISC, NMNDiscClass)) - -#define NM_NDISC_PLATFORM "platform" -#define NM_NDISC_IFINDEX "ifindex" -#define NM_NDISC_IFNAME "ifname" -#define NM_NDISC_NETWORK_ID "network-id" -#define NM_NDISC_ADDR_GEN_MODE "addr-gen-mode" -#define NM_NDISC_STABLE_TYPE "stable-type" -#define NM_NDISC_NODE_TYPE "node-type" -#define NM_NDISC_MAX_ADDRESSES "max-addresses" -#define NM_NDISC_RA_TIMEOUT "ra-timeout" -#define NM_NDISC_ROUTER_SOLICITATIONS "router-solicitations" -#define NM_NDISC_ROUTER_SOLICITATION_INTERVAL "router-solicitation-interval" - -#define NM_NDISC_CONFIG_RECEIVED "config-received" -#define NM_NDISC_RA_TIMEOUT_SIGNAL "ra-timeout-signal" - -typedef enum { - NM_NDISC_DHCP_LEVEL_UNKNOWN, - NM_NDISC_DHCP_LEVEL_NONE, - NM_NDISC_DHCP_LEVEL_OTHERCONF, - NM_NDISC_DHCP_LEVEL_MANAGED -} NMNDiscDHCPLevel; - -/* we rely on the fact that NM_NDISC_INFINITY is the largest possible - * time duration (G_MAXUINT32) and that the range of finite values - * goes from 0 to G_MAXUINT32-1. */ -#define NM_NDISC_INFINITY G_MAXUINT32 - -struct _NMNDiscGateway { - struct in6_addr address; - guint32 timestamp; - guint32 lifetime; - NMIcmpv6RouterPref preference; -}; -typedef struct _NMNDiscGateway NMNDiscGateway; - -struct _NMNDiscAddress { - struct in6_addr address; - guint8 dad_counter; - guint32 timestamp; - guint32 lifetime; - guint32 preferred; -}; -typedef struct _NMNDiscAddress NMNDiscAddress; - -struct _NMNDiscRoute { - struct in6_addr network; - guint8 plen; - struct in6_addr gateway; - guint32 timestamp; - guint32 lifetime; - NMIcmpv6RouterPref preference; -}; -typedef struct _NMNDiscRoute NMNDiscRoute; - -typedef struct { - struct in6_addr address; - guint32 timestamp; - guint32 lifetime; -} NMNDiscDNSServer; - -typedef struct { - char * domain; - guint32 timestamp; - guint32 lifetime; -} NMNDiscDNSDomain; - -typedef enum { - NM_NDISC_CONFIG_NONE = 0, - NM_NDISC_CONFIG_DHCP_LEVEL = 1 << 0, - NM_NDISC_CONFIG_GATEWAYS = 1 << 1, - NM_NDISC_CONFIG_ADDRESSES = 1 << 2, - NM_NDISC_CONFIG_ROUTES = 1 << 3, - NM_NDISC_CONFIG_DNS_SERVERS = 1 << 4, - NM_NDISC_CONFIG_DNS_DOMAINS = 1 << 5, - NM_NDISC_CONFIG_HOP_LIMIT = 1 << 6, - NM_NDISC_CONFIG_MTU = 1 << 7, - NM_NDISC_CONFIG_REACHABLE_TIME = 1 << 8, - NM_NDISC_CONFIG_RETRANS_TIMER = 1 << 9, -} NMNDiscConfigMap; - -typedef enum { - NM_NDISC_NODE_TYPE_INVALID, - NM_NDISC_NODE_TYPE_HOST, - NM_NDISC_NODE_TYPE_ROUTER, -} NMNDiscNodeType; - -#define NM_NDISC_MAX_ADDRESSES_DEFAULT 16 -#define NM_NDISC_ROUTER_SOLICITATIONS_DEFAULT 3 /* RFC4861 MAX_RTR_SOLICITATIONS */ -#define NM_NDISC_ROUTER_SOLICITATION_INTERVAL_DEFAULT 4 /* RFC4861 RTR_SOLICITATION_INTERVAL */ -#define NM_NDISC_ROUTER_ADVERTISEMENTS_DEFAULT 3 /* RFC4861 MAX_INITIAL_RTR_ADVERTISEMENTS */ -#define NM_NDISC_ROUTER_ADVERT_DELAY 3 /* RFC4861 MIN_DELAY_BETWEEN_RAS */ -#define NM_NDISC_ROUTER_ADVERT_INITIAL_INTERVAL 16 /* RFC4861 MAX_INITIAL_RTR_ADVERT_INTERVAL */ -#define NM_NDISC_ROUTER_ADVERT_DELAY_MS 500 /* RFC4861 MAX_RA_DELAY_TIME */ -#define NM_NDISC_ROUTER_ADVERT_MAX_INTERVAL 600 /* RFC4861 MaxRtrAdvInterval default */ -#define NM_NDISC_ROUTER_LIFETIME 900 /* 1.5 * NM_NDISC_ROUTER_ADVERT_MAX_INTERVAL */ - -struct _NMNDiscPrivate; -struct _NMNDiscDataInternal; - -typedef struct { - NMNDiscDHCPLevel dhcp_level; - guint32 mtu; - int hop_limit; - guint32 reachable_time_ms; - guint32 retrans_timer_ms; - - guint gateways_n; - guint addresses_n; - guint routes_n; - guint dns_servers_n; - guint dns_domains_n; - - const NMNDiscGateway * gateways; - const NMNDiscAddress * addresses; - const NMNDiscRoute * routes; - const NMNDiscDNSServer *dns_servers; - const NMNDiscDNSDomain *dns_domains; -} NMNDiscData; - -/** - * NMNDisc: - * - * Interface-specific structure that handles incoming router advertisements, - * caches advertised items and removes them when they are obsolete. - */ -typedef struct { - GObject parent; - union { - struct _NMNDiscPrivate * _priv; - struct _NMNDiscDataInternal *rdata; - }; -} NMNDisc; - -typedef struct { - GObjectClass parent; - - void (*start)(NMNDisc *ndisc); - void (*stop)(NMNDisc *ndisc); - gboolean (*send_rs)(NMNDisc *ndisc, GError **error); - gboolean (*send_ra)(NMNDisc *ndisc, GError **error); -} NMNDiscClass; - -GType nm_ndisc_get_type(void); - -void nm_ndisc_emit_config_change(NMNDisc *self, NMNDiscConfigMap changed); - -int nm_ndisc_get_ifindex(NMNDisc *self); -const char * nm_ndisc_get_ifname(NMNDisc *self); -NMNDiscNodeType nm_ndisc_get_node_type(NMNDisc *self); - -gboolean nm_ndisc_set_iid(NMNDisc *ndisc, const NMUtilsIPv6IfaceId iid); -void nm_ndisc_start(NMNDisc *ndisc); -void nm_ndisc_stop(NMNDisc *ndisc); -NMNDiscConfigMap -nm_ndisc_dad_failed(NMNDisc *ndisc, const struct in6_addr *address, gboolean emit_changed_signal); -void nm_ndisc_set_config(NMNDisc * ndisc, - const GArray *addresses, - const GArray *dns_servers, - const GArray *dns_domains); - -NMPlatform *nm_ndisc_get_platform(NMNDisc *self); -NMPNetns * nm_ndisc_netns_get(NMNDisc *self); -gboolean nm_ndisc_netns_push(NMNDisc *self, NMPNetns **netns); - -static inline gboolean -nm_ndisc_dad_addr_is_fail_candidate_event(NMPlatformSignalChangeType change_type, - const NMPlatformIP6Address *addr) -{ - return !NM_FLAGS_HAS(addr->n_ifa_flags, IFA_F_TEMPORARY) - && ((change_type == NM_PLATFORM_SIGNAL_CHANGED && addr->n_ifa_flags & IFA_F_DADFAILED) - || (change_type == NM_PLATFORM_SIGNAL_REMOVED - && addr->n_ifa_flags & IFA_F_TENTATIVE)); -} - -static inline gboolean -nm_ndisc_dad_addr_is_fail_candidate(NMPlatform *platform, const NMPObject *obj) -{ - const NMPlatformIP6Address *addr; - - addr = NMP_OBJECT_CAST_IP6_ADDRESS( - nm_platform_lookup_obj(platform, NMP_CACHE_ID_TYPE_OBJECT_TYPE, obj)); - if (addr - && (NM_FLAGS_HAS(addr->n_ifa_flags, IFA_F_TEMPORARY) - || !NM_FLAGS_HAS(addr->n_ifa_flags, IFA_F_DADFAILED))) { - /* the address still/again exists and is not in DADFAILED state. Skip it. */ - return FALSE; - } - - return TRUE; -} - -/*****************************************************************************/ - -struct _NML3ConfigData; - -struct _NML3ConfigData *nm_ndisc_data_to_l3cd(NMDedupMultiIndex * multi_idx, - int ifindex, - const NMNDiscData * rdata, - NMSettingIP6ConfigPrivacy ip6_privacy, - guint32 route_table, - guint32 route_metric, - gboolean kernel_support_rta_pref, - gboolean kernel_support_extended_ifa_flags); - -#endif /* __NETWORKMANAGER_NDISC_H__ */ diff --git a/src/ndisc/tests/meson.build b/src/ndisc/tests/meson.build deleted file mode 100644 index 349eebba..00000000 --- a/src/ndisc/tests/meson.build +++ /dev/null @@ -1,26 +0,0 @@ -# SPDX-License-Identifier: LGPL-2.1+ - -test_unit = 'test-ndisc-fake' - -exe = executable( - test_unit, - test_unit + '.c', - dependencies: libnetwork_manager_test_dep, - c_args: test_c_flags, -) - -test( - 'ndisc/' + test_unit, - test_script, - args: test_args + [exe.full_path()], - timeout: default_test_timeout, -) - -test = 'test-ndisc-linux' - -exe = executable( - test, - test + '.c', - dependencies: libnetwork_manager_test_dep, - c_args: test_c_flags, -) diff --git a/src/ndisc/tests/test-ndisc-fake.c b/src/ndisc/tests/test-ndisc-fake.c deleted file mode 100644 index dfb0b37b..00000000 --- a/src/ndisc/tests/test-ndisc-fake.c +++ /dev/null @@ -1,538 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2015 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include <syslog.h> - -#include "ndisc/nm-ndisc.h" -#include "ndisc/nm-fake-ndisc.h" - -#include "platform/nm-fake-platform.h" - -#include "nm-test-utils-core.h" - -static NMFakeNDisc * -ndisc_new(void) -{ - NMNDisc * ndisc; - const int ifindex = 1; - const char * ifname = nm_platform_link_get_name(NM_PLATFORM_GET, ifindex); - NMUtilsIPv6IfaceId iid = {}; - - ndisc = nm_fake_ndisc_new(ifindex, ifname); - iid.id_u8[7] = 1; - nm_ndisc_set_iid(ndisc, iid); - g_assert(ndisc); - return NM_FAKE_NDISC(ndisc); -} - -static void -match_gateway(const NMNDiscData *rdata, - guint idx, - const char * addr, - guint32 ts, - guint32 lt, - NMIcmpv6RouterPref pref) -{ - const NMNDiscGateway *gw; - char buf[INET6_ADDRSTRLEN]; - - g_assert(rdata); - g_assert_cmpint(idx, <, rdata->gateways_n); - g_assert(rdata->gateways); - - gw = &rdata->gateways[idx]; - - g_assert_cmpstr(inet_ntop(AF_INET6, &gw->address, buf, sizeof(buf)), ==, addr); - g_assert_cmpint(gw->timestamp, ==, ts); - g_assert_cmpint(gw->lifetime, ==, lt); - g_assert_cmpint(gw->preference, ==, pref); -} - -#define match_address(rdata, idx, addr, ts, lt, pref) \ - G_STMT_START \ - { \ - const NMNDiscData * _rdata = (rdata); \ - guint _idx = (idx); \ - const NMNDiscAddress *_a; \ - guint _ts = (ts); \ - \ - g_assert(_rdata); \ - g_assert_cmpint(_idx, <, _rdata->addresses_n); \ - g_assert(_rdata->addresses); \ - \ - _a = &_rdata->addresses[_idx]; \ - \ - nmtst_assert_ip6_address(&_a->address, (addr)); \ - g_assert_cmpint(_a->timestamp, <=, _ts + 1); \ - g_assert_cmpint((int) _a->timestamp, >=, (int) _ts - 1); \ - g_assert_cmpint(_a->timestamp + _a->lifetime, ==, _ts + (lt)); \ - g_assert_cmpint(_a->timestamp + _a->preferred, ==, _ts + (pref)); \ - } \ - G_STMT_END - -#define match_route(rdata, idx, nw, pl, gw, ts, lt, pref) \ - G_STMT_START \ - { \ - const NMNDiscData * _rdata = (rdata); \ - guint _idx = (idx); \ - const NMNDiscRoute *_r; \ - int _plen = (pl); \ - \ - g_assert(_rdata); \ - g_assert_cmpint(_idx, <, _rdata->routes_n); \ - g_assert(_rdata->routes); \ - g_assert(_plen > 0 && _plen <= 128); \ - \ - _r = &_rdata->routes[idx]; \ - \ - nmtst_assert_ip6_address(&_r->network, (nw)); \ - g_assert_cmpint((int) _r->plen, ==, _plen); \ - nmtst_assert_ip6_address(&_r->gateway, (gw)); \ - g_assert_cmpint(_r->timestamp, ==, (ts)); \ - g_assert_cmpint(_r->lifetime, ==, (lt)); \ - g_assert_cmpint(_r->preference, ==, (pref)); \ - } \ - G_STMT_END - -static void -match_dns_server(const NMNDiscData *rdata, guint idx, const char *addr, guint32 ts, guint32 lt) -{ - const NMNDiscDNSServer *dns; - char buf[INET6_ADDRSTRLEN]; - - g_assert(rdata); - g_assert_cmpint(idx, <, rdata->dns_servers_n); - g_assert(rdata->dns_servers); - - dns = &rdata->dns_servers[idx]; - - g_assert_cmpstr(inet_ntop(AF_INET6, &dns->address, buf, sizeof(buf)), ==, addr); - g_assert_cmpint(dns->timestamp, ==, ts); - g_assert_cmpint(dns->lifetime, ==, lt); -} - -static void -match_dns_domain(const NMNDiscData *rdata, guint idx, const char *domain, guint32 ts, guint32 lt) -{ - const NMNDiscDNSDomain *dns; - - g_assert(rdata); - g_assert_cmpint(idx, <, rdata->dns_domains_n); - g_assert(rdata->dns_domains); - - dns = &rdata->dns_domains[idx]; - - g_assert_cmpstr(dns->domain, ==, domain); - g_assert_cmpint(dns->timestamp, ==, ts); - g_assert_cmpint(dns->lifetime, ==, lt); -} - -typedef struct { - GMainLoop *loop; - guint counter; - guint rs_counter; - guint32 timestamp1; - guint32 first_solicit; - guint32 timeout_id; -} TestData; - -static void -test_simple_changed(NMNDisc *ndisc, const NMNDiscData *rdata, guint changed_int, TestData *data) -{ - NMNDiscConfigMap changed = changed_int; - - g_assert_cmpint(changed, - ==, - NM_NDISC_CONFIG_DHCP_LEVEL | NM_NDISC_CONFIG_GATEWAYS - | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES - | NM_NDISC_CONFIG_DNS_SERVERS | NM_NDISC_CONFIG_DNS_DOMAINS - | NM_NDISC_CONFIG_HOP_LIMIT | NM_NDISC_CONFIG_MTU); - g_assert_cmpint(rdata->dhcp_level, ==, NM_NDISC_DHCP_LEVEL_OTHERCONF); - match_gateway(rdata, 0, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); - match_route(rdata, 0, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 10); - match_dns_server(rdata, 0, "2001:db8:c:c::1", data->timestamp1, 10); - match_dns_domain(rdata, 0, "foobar.com", data->timestamp1, 10); - - g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); - data->counter++; - g_main_loop_quit(data->loop); -} - -static void -test_simple(void) -{ - NMFakeNDisc *ndisc = ndisc_new(); - guint32 now = nm_utils_get_monotonic_timestamp_sec(); - TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; - guint id; - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_OTHERCONF, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 10); - nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 10); - nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar.com", now, 10); - - g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_simple_changed), &data); - - nm_ndisc_start(NM_NDISC(ndisc)); - g_main_loop_run(data.loop); - g_assert_cmpint(data.counter, ==, 1); - - g_object_unref(ndisc); - g_main_loop_unref(data.loop); -} - -static void -test_everything_rs_sent(NMNDisc *ndisc, TestData *data) -{ - g_assert_cmpint(data->rs_counter, ==, 0); - data->rs_counter++; -} - -static void -test_everything_changed(NMNDisc *ndisc, const NMNDiscData *rdata, guint changed_int, TestData *data) -{ - NMNDiscConfigMap changed = changed_int; - - if (data->counter == 0) { - g_assert_cmpint(data->rs_counter, ==, 1); - g_assert_cmpint(changed, - ==, - NM_NDISC_CONFIG_DHCP_LEVEL | NM_NDISC_CONFIG_GATEWAYS - | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES - | NM_NDISC_CONFIG_DNS_SERVERS | NM_NDISC_CONFIG_DNS_DOMAINS - | NM_NDISC_CONFIG_HOP_LIMIT | NM_NDISC_CONFIG_MTU); - match_gateway(rdata, 0, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); - match_route(rdata, 0, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 10); - match_dns_server(rdata, 0, "2001:db8:c:c::1", data->timestamp1, 10); - match_dns_domain(rdata, 0, "foobar.com", data->timestamp1, 10); - } else if (data->counter == 1) { - g_assert_cmpint(changed, - ==, - NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES - | NM_NDISC_CONFIG_ROUTES | NM_NDISC_CONFIG_DNS_SERVERS - | NM_NDISC_CONFIG_DNS_DOMAINS); - - g_assert_cmpint(rdata->gateways_n, ==, 1); - match_gateway(rdata, 0, "fe80::2", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - g_assert_cmpint(rdata->addresses_n, ==, 2); - match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 0); - match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1, 10, 10); - g_assert_cmpint(rdata->routes_n, ==, 1); - match_route(rdata, 0, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1, 10, 10); - g_assert_cmpint(rdata->dns_servers_n, ==, 1); - match_dns_server(rdata, 0, "2001:db8:c:c::2", data->timestamp1, 10); - g_assert_cmpint(rdata->dns_domains_n, ==, 1); - match_dns_domain(rdata, 0, "foobar2.com", data->timestamp1, 10); - - g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); - g_main_loop_quit(data->loop); - } else - g_assert_not_reached(); - - data->counter++; -} - -static void -test_everything(void) -{ - NMFakeNDisc *ndisc = ndisc_new(); - guint32 now = nm_utils_get_monotonic_timestamp_sec(); - TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; - guint id; - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 10); - nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 10); - nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar.com", now, 10); - - /* expire everything from the first RA in the second */ - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 0, NM_ICMPV6_ROUTER_PREF_MEDIUM); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 0, 0, 0); - nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 0); - nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar.com", now, 0); - - /* and add some new stuff */ - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::2", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:b::", 64, "fe80::2", now, 10, 10, 10); - nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::2", now, 10); - nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar2.com", now, 10); - - g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_everything_changed), &data); - g_signal_connect(ndisc, NM_FAKE_NDISC_RS_SENT, G_CALLBACK(test_everything_rs_sent), &data); - - nm_ndisc_start(NM_NDISC(ndisc)); - g_main_loop_run(data.loop); - g_assert_cmpint(data.counter, ==, 2); - g_assert_cmpint(data.rs_counter, ==, 1); - - g_object_unref(ndisc); - g_main_loop_unref(data.loop); -} - -static void -test_preference_order_cb(NMNDisc * ndisc, - const NMNDiscData *rdata, - guint changed_int, - TestData * data) -{ - NMNDiscConfigMap changed = changed_int; - - if (data->counter == 1) { - g_assert_cmpint(changed, - ==, - NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES - | NM_NDISC_CONFIG_ROUTES); - - g_assert_cmpint(rdata->gateways_n, ==, 2); - match_gateway(rdata, 0, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_HIGH); - match_gateway(rdata, 1, "fe80::2", data->timestamp1 + 1, 10, NM_ICMPV6_ROUTER_PREF_LOW); - g_assert_cmpint(rdata->addresses_n, ==, 2); - match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); - match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1 + 1, 10, 10); - g_assert_cmpint(rdata->routes_n, ==, 2); - match_route(rdata, 0, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1 + 1, 10, 10); - match_route(rdata, 1, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 5); - - g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); - g_main_loop_quit(data->loop); - } - - data->counter++; -} - -static void -test_preference_order(void) -{ - NMFakeNDisc *ndisc = ndisc_new(); - guint32 now = nm_utils_get_monotonic_timestamp_sec(); - TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; - guint id; - - /* Test insertion order of gateways */ - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_HIGH); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 5); - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::2", ++now, 10, NM_ICMPV6_ROUTER_PREF_LOW); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:b::", 64, "fe80::2", now, 10, 10, 10); - - g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_preference_order_cb), &data); - - nm_ndisc_start(NM_NDISC(ndisc)); - g_main_loop_run(data.loop); - g_assert_cmpint(data.counter, ==, 2); - - g_object_unref(ndisc); - g_main_loop_unref(data.loop); -} - -static void -test_preference_changed_cb(NMNDisc * ndisc, - const NMNDiscData *rdata, - guint changed_int, - TestData * data) -{ - NMNDiscConfigMap changed = changed_int; - - if (data->counter == 1) { - g_assert_cmpint(changed, - ==, - NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES - | NM_NDISC_CONFIG_ROUTES); - g_assert_cmpint(rdata->gateways_n, ==, 2); - match_gateway(rdata, 0, "fe80::2", data->timestamp1 + 1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - match_gateway(rdata, 1, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_LOW); - g_assert_cmpint(rdata->addresses_n, ==, 2); - match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); - match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1 + 1, 10, 10); - g_assert_cmpint(rdata->routes_n, ==, 2); - match_route(rdata, 0, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1 + 1, 10, 10); - match_route(rdata, 1, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 5); - } else if (data->counter == 2) { - g_assert_cmpint(changed, - ==, - NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES - | NM_NDISC_CONFIG_ROUTES); - - g_assert_cmpint(rdata->gateways_n, ==, 2); - match_gateway(rdata, 0, "fe80::1", data->timestamp1 + 2, 10, NM_ICMPV6_ROUTER_PREF_HIGH); - match_gateway(rdata, 1, "fe80::2", data->timestamp1 + 1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - g_assert_cmpint(rdata->addresses_n, ==, 2); - match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1 + 3, 9, 9); - match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1 + 1, 10, 10); - g_assert_cmpint(rdata->routes_n, ==, 2); - match_route(rdata, 0, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1 + 2, 10, 15); - match_route(rdata, 1, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1 + 1, 10, 10); - - g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); - g_main_loop_quit(data->loop); - } - - data->counter++; -} - -static void -test_preference_changed(void) -{ - NMFakeNDisc *ndisc = ndisc_new(); - guint32 now = nm_utils_get_monotonic_timestamp_sec(); - TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; - guint id; - - /* Test that when a low-preference and medium gateway send advertisements, - * that if the low-preference gateway switches to high-preference, we do - * not get duplicates in the gateway list. - */ - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_LOW); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 5); - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::2", ++now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:b::", 64, "fe80::2", now, 10, 10, 10); - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", ++now, 10, NM_ICMPV6_ROUTER_PREF_HIGH); - nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 15); - - g_signal_connect(ndisc, - NM_NDISC_CONFIG_RECEIVED, - G_CALLBACK(test_preference_changed_cb), - &data); - - nm_ndisc_start(NM_NDISC(ndisc)); - g_main_loop_run(data.loop); - g_assert_cmpint(data.counter, ==, 3); - - g_object_unref(ndisc); - g_main_loop_unref(data.loop); -} - -static void -test_dns_solicit_loop_changed(NMNDisc * ndisc, - const NMNDiscData *rdata, - guint changed_int, - TestData * data) -{ - data->counter++; -} - -static gboolean -success_timeout(TestData *data) -{ - data->timeout_id = 0; - g_main_loop_quit(data->loop); - return G_SOURCE_REMOVE; -} - -static void -test_dns_solicit_loop_rs_sent(NMFakeNDisc *ndisc, TestData *data) -{ - guint32 now = nm_utils_get_monotonic_timestamp_sec(); - guint id; - - if (data->rs_counter > 0 && data->rs_counter < 6) { - if (data->rs_counter == 1) { - data->first_solicit = now; - /* Kill the test after 10 seconds if it hasn't failed yet */ - data->timeout_id = g_timeout_add_seconds(10, (GSourceFunc) success_timeout, data); - } - - /* On all but the first solicitation, which should be triggered by the - * DNS servers reaching 1/2 lifetime, emit a new RA without the DNS - * servers again. - */ - id = nm_fake_ndisc_add_ra(ndisc, 0, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); - - nm_fake_ndisc_emit_new_ras(ndisc); - } else if (data->rs_counter >= 6) { - /* Fail if we've sent too many solicitations in the past 4 seconds */ - g_assert_cmpint(now - data->first_solicit, >, 4); - g_source_remove(data->timeout_id); - g_main_loop_quit(data->loop); - } - data->rs_counter++; -} - -static void -test_dns_solicit_loop(void) -{ - NMFakeNDisc *ndisc = ndisc_new(); - guint32 now = nm_utils_get_monotonic_timestamp_sec(); - TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now, 0}; - guint id; - - /* Ensure that no solicitation loop happens when DNS servers or domains - * stop being sent in advertisements. This can happen if two routers - * send RAs, but the one sending DNS info stops responding, or if one - * router removes the DNS info from the RA without zero-lifetiming them - * first. - */ - - id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); - g_assert(id); - nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_LOW); - nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 6); - - g_signal_connect(ndisc, - NM_NDISC_CONFIG_RECEIVED, - G_CALLBACK(test_dns_solicit_loop_changed), - &data); - g_signal_connect(ndisc, - NM_FAKE_NDISC_RS_SENT, - G_CALLBACK(test_dns_solicit_loop_rs_sent), - &data); - - nm_ndisc_start(NM_NDISC(ndisc)); - g_main_loop_run(data.loop); - g_assert_cmpint(data.counter, ==, 3); - - g_object_unref(ndisc); - g_main_loop_unref(data.loop); -} - -NMTST_DEFINE(); - -int -main(int argc, char **argv) -{ - nmtst_init_with_logging(&argc, &argv, NULL, "DEFAULT"); - - if (nmtst_test_quick()) { - g_print("Skipping test: don't run long running test %s (NMTST_DEBUG=slow)\n", - g_get_prgname() ?: "test-ndisc-fake"); - return g_test_run(); - } - - nm_fake_platform_setup(); - - g_test_add_func("/ndisc/simple", test_simple); - g_test_add_func("/ndisc/everything-changed", test_everything); - g_test_add_func("/ndisc/preference-order", test_preference_order); - g_test_add_func("/ndisc/preference-changed", test_preference_changed); - g_test_add_func("/ndisc/dns-solicit-loop", test_dns_solicit_loop); - - return g_test_run(); -} diff --git a/src/ndisc/tests/test-ndisc-linux.c b/src/ndisc/tests/test-ndisc-linux.c deleted file mode 100644 index 7e5e258b..00000000 --- a/src/ndisc/tests/test-ndisc-linux.c +++ /dev/null @@ -1,85 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2013 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include <syslog.h> - -#include "ndisc/nm-ndisc.h" -#include "ndisc/nm-lndp-ndisc.h" - -#include "platform/nm-linux-platform.h" - -#include "nm-test-utils-core.h" - -NMTST_DEFINE(); - -int -main(int argc, char **argv) -{ - GMainLoop * loop; - NMNDisc * ndisc; - int ifindex = 1; - const char * ifname; - NMUtilsIPv6IfaceId iid = {}; - GError * error = NULL; - int max_addresses; - int router_solicitations; - int router_solicitation_interval; - guint32 ra_timeout; - - nmtst_init_with_logging(&argc, &argv, NULL, "DEFAULT"); - - if (getuid() != 0) { - g_print("Missing permission: must run as root\n"); - return EXIT_FAILURE; - } - - loop = g_main_loop_new(NULL, FALSE); - - nm_linux_platform_setup(); - - if (argv[1]) { - ifname = argv[1]; - ifindex = nm_platform_link_get_ifindex(NM_PLATFORM_GET, ifname); - } else { - g_print("Missing command line argument \"interface-name\"\n"); - return EXIT_FAILURE; - } - - nm_lndp_ndisc_get_sysctl(NM_PLATFORM_GET, - ifname, - &max_addresses, - &router_solicitations, - &router_solicitation_interval, - &ra_timeout); - - ndisc = nm_lndp_ndisc_new(NM_PLATFORM_GET, - ifindex, - ifname, - NM_UTILS_STABLE_TYPE_UUID, - "8ce666e8-d34d-4fb1-b858-f15a7al28086", - NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64, - NM_NDISC_NODE_TYPE_HOST, - max_addresses, - router_solicitations, - router_solicitation_interval, - ra_timeout, - &error); - if (!ndisc) { - g_print("Failed to create NMNDisc instance: %s\n", error->message); - g_error_free(error); - return EXIT_FAILURE; - } - - iid.id_u8[7] = 1; - nm_ndisc_set_iid(ndisc, iid); - nm_ndisc_start(ndisc); - g_main_loop_run(loop); - - g_clear_object(&ndisc); - - return EXIT_SUCCESS; -} |