From 23f186494cf041107896fc4bd7fc5b8f921fd79f Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Wed, 18 Nov 2015 13:43:49 +0100 Subject: networkd: ndisc - revert to letting the kernel handle NDisc There is still a bug in the userspace version, so temporarily revert this. This is a work-around for issue #1866. --- src/network/networkd-link.c | 20 ++++++++++++-------- src/network/networkd-ndisc.c | 13 ++++++++----- 2 files changed, 20 insertions(+), 13 deletions(-) (limited to 'src/network') diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index 01d5942ce5..0d3c141312 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -626,9 +626,6 @@ void link_check_ready(Link *link) { !link->dhcp4_configured && !link->dhcp6_configured)) return; - if (link_ipv6_accept_ra_enabled(link) && !link->ndisc_configured) - return; - SET_FOREACH(a, link->addresses, i) if (!address_is_ready(a)) return; @@ -1926,6 +1923,7 @@ static int link_set_ipv6_privacy_extensions(Link *link) { static int link_set_ipv6_accept_ra(Link *link) { const char *p = NULL; + const char *v; int r; /* Make this a NOP if IPv6 is not available */ @@ -1938,12 +1936,16 @@ static int link_set_ipv6_accept_ra(Link *link) { if (!link->network) return 0; + if (link_ipv6_accept_ra_enabled(link)) + v = "1"; + else + v = "0"; + p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/accept_ra"); - /* We handle router advertisments ourselves, tell the kernel to GTFO */ - r = write_string_file(p, "0", WRITE_STRING_FILE_VERIFY_ON_FAILURE); + r = write_string_file(p, v, WRITE_STRING_FILE_VERIFY_ON_FAILURE); if (r < 0) - log_link_warning_errno(link, r, "Cannot disable kernel IPv6 accept_ra for interface: %m"); + log_link_warning_errno(link, r, "Cannot configure kernel IPv6 accept_ra for interface: %m"); return 0; } @@ -2004,6 +2006,7 @@ static int link_set_ipv6_hop_limit(Link *link) { return 0; } +/* static int link_drop_foreign_config(Link *link) { Address *address; Route *route; @@ -2011,7 +2014,6 @@ static int link_drop_foreign_config(Link *link) { int r; SET_FOREACH(address, link->addresses_foreign, i) { - /* we consider IPv6LL addresses to be managed by the kernel */ if (address->family == AF_INET6 && in_addr_is_link_local(AF_INET6, &address->in_addr) == 1) continue; @@ -2021,7 +2023,6 @@ static int link_drop_foreign_config(Link *link) { } SET_FOREACH(route, link->routes_foreign, i) { - /* do not touch routes managed by the kernel */ if (route->protocol == RTPROT_KERNEL) continue; @@ -2032,6 +2033,7 @@ static int link_drop_foreign_config(Link *link) { return 0; } +*/ static int link_configure(Link *link) { int r; @@ -2040,9 +2042,11 @@ static int link_configure(Link *link) { assert(link->network); assert(link->state == LINK_STATE_PENDING); +/* r = link_drop_foreign_config(link); if (r < 0) return r; +*/ r = link_set_bridge_fdb(link); if (r < 0) diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c index ce9e513ceb..966d729d85 100644 --- a/src/network/networkd-ndisc.c +++ b/src/network/networkd-ndisc.c @@ -26,7 +26,7 @@ #include "sd-ndisc.h" #include "networkd-link.h" - +/* static int ndisc_netlink_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) { _cleanup_link_unref_ Link *link = userdata; int r; @@ -77,7 +77,6 @@ static void ndisc_prefix_autonomous_handler(sd_ndisc *nd, const struct in6_addr if (in_addr_is_null(AF_INET6, (const union in_addr_union *) &link->network->ipv6_token) == 0) memcpy(((char *)&address->in_addr.in6) + 8, ((char *)&link->network->ipv6_token) + 8, 8); else { - /* see RFC4291 section 2.5.1 */ address->in_addr.in6.__in6_u.__u6_addr8[8] = link->mac.ether_addr_octet[0]; address->in_addr.in6.__in6_u.__u6_addr8[8] ^= 1 << 1; address->in_addr.in6.__in6_u.__u6_addr8[9] = link->mac.ether_addr_octet[1]; @@ -140,11 +139,12 @@ static void ndisc_prefix_onlink_handler(sd_ndisc *nd, const struct in6_addr *pre link->ndisc_messages ++; } +*/ static void ndisc_router_handler(sd_ndisc *nd, uint8_t flags, const struct in6_addr *gateway, unsigned lifetime, int pref, void *userdata) { _cleanup_route_free_ Route *route = NULL; Link *link = userdata; - usec_t time_now; + /* usec_t time_now; */ int r; assert(link); @@ -163,6 +163,8 @@ static void ndisc_router_handler(sd_ndisc *nd, uint8_t flags, const struct in6_a log_link_warning_errno(link, r, "Starting DHCPv6 client on NDisc request failed: %m"); } + return; +/* if (!gateway) return; @@ -189,6 +191,7 @@ static void ndisc_router_handler(sd_ndisc *nd, uint8_t flags, const struct in6_a } link->ndisc_messages ++; +*/ } static void ndisc_handler(sd_ndisc *nd, int event, void *userdata) { @@ -242,8 +245,8 @@ int ndisc_configure(Link *link) { r = sd_ndisc_set_callback(link->ndisc_router_discovery, ndisc_router_handler, - ndisc_prefix_onlink_handler, - ndisc_prefix_autonomous_handler, + NULL, + NULL, ndisc_handler, link); -- cgit v1.2.3-54-g00ecf From 6a3e5f6a2813e3bd48692a32ac7eb27fd9cd73ee Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Wed, 18 Nov 2015 14:21:06 +0100 Subject: networkd: dhcp4 - dirty link when the lease changes Without this commit, we risk not picking up DNS addresses as soon as they are available. --- src/network/networkd-dhcp4.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/network') diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c index b9c60a3c77..48e3d84055 100644 --- a/src/network/networkd-dhcp4.c +++ b/src/network/networkd-dhcp4.c @@ -255,6 +255,7 @@ static int dhcp_lease_lost(Link *link) { } link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease); + link_dirty(link); link->dhcp4_configured = false; return 0; @@ -331,6 +332,7 @@ static int dhcp_lease_renew(sd_dhcp_client *client, Link *link) { sd_dhcp_lease_unref(link->dhcp_lease); link->dhcp4_configured = false; link->dhcp_lease = sd_dhcp_lease_ref(lease); + link_dirty(link); r = sd_dhcp_lease_get_address(lease, &address); if (r < 0) @@ -408,6 +410,7 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) { NULL); link->dhcp_lease = sd_dhcp_lease_ref(lease); + link_dirty(link); if (link->network->dhcp_mtu) { uint16_t mtu; -- cgit v1.2.3-54-g00ecf