X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-netdev-tunnel.c;h=e95082d119e6e169841c05deaa52d75b14944a7f;hp=31d34644edebdceac3bca3bc03689efc7e20aa4f;hb=73b23bea8666f9c6d01d595ebbdbf7e78680c0ea;hpb=7bdb04298fd8b3de7adf2e0e547ef7dd953b809e diff --git a/src/network/networkd-netdev-tunnel.c b/src/network/networkd-netdev-tunnel.c index 31d34644e..e95082d11 100644 --- a/src/network/networkd-netdev-tunnel.c +++ b/src/network/networkd-netdev-tunnel.c @@ -3,7 +3,7 @@ /*** This file is part of systemd. - Copyright 2014 Susant Sahani + Copyright 2014 Susant Sahani systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -24,6 +24,7 @@ #include #include #include +#include #include "sd-rtnl.h" #include "networkd-netdev-tunnel.h" @@ -33,6 +34,17 @@ #include "missing.h" #include "conf-parser.h" +#define DEFAULT_TNL_HOP_LIMIT 64 + +static const char* const ip6tnl_mode_table[_NETDEV_IP6_TNL_MODE_MAX] = { + [NETDEV_IP6_TNL_MODE_IP6IP6] = "ip6ip6", + [NETDEV_IP6_TNL_MODE_IPIP6] = "ipip6", + [NETDEV_IP6_TNL_MODE_ANYIP6] = "any", +}; + +DEFINE_STRING_TABLE_LOOKUP(ip6tnl_mode, Ip6TnlMode); +DEFINE_CONFIG_PARSE_ENUM(config_parse_ip6tnl_mode, ip6tnl_mode, Ip6TnlMode, "Failed to parse ip6 tunnel Mode"); + static int netdev_ipip_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) { Tunnel *t = IPIP(netdev); int r; @@ -140,14 +152,20 @@ static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_me } static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) { - Tunnel *t = GRE(netdev); + Tunnel *t; int r; assert(netdev); - assert(link); - assert(m); + + if (netdev->kind == NETDEV_KIND_GRE) + t = GRE(netdev); + else + t = GRETAP(netdev); + assert(t); assert(t->family == AF_INET); + assert(link); + assert(m); r = sd_rtnl_message_append_u32(m, IFLA_GRE_LINK, link->ifindex); if (r < 0) { @@ -200,6 +218,57 @@ static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_me return r; } +static int netdev_ip6gre_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) { + Tunnel *t; + int r; + + assert(netdev); + + if (netdev->kind == NETDEV_KIND_IP6GRE) + t = IP6GRE(netdev); + else + t = IP6GRETAP(netdev); + + assert(t); + assert(t->family == AF_INET6); + assert(link); + assert(m); + + r = sd_rtnl_message_append_u32(m, IFLA_GRE_LINK, link->ifindex); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_GRE_LINK attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_in6_addr(m, IFLA_GRE_LOCAL, &t->local.in6); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_GRE_LOCAL attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_in6_addr(m, IFLA_GRE_REMOTE, &t->remote.in6); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_GRE_REMOTE attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_u8(m, IFLA_GRE_TTL, t->ttl); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_GRE_TTL attribute: %s", + strerror(-r)); + return r; + } + + return r; +} + static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) { Tunnel *t = VTI(netdev); int r; @@ -237,6 +306,73 @@ static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_me return r; } +static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) { + Tunnel *t = IP6TNL(netdev); + uint8_t proto; + int r; + + assert(netdev); + assert(link); + assert(m); + assert(t); + assert(t->family == AF_INET6); + + r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_IPTUN_LINK attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_in6_addr(m, IFLA_IPTUN_LOCAL, &t->local.in6); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_IPTUN_LOCAL attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_in6_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in6); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_IPTUN_REMOTE attribute: %s", + strerror(-r)); + return r; + } + + r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_IPTUN_TTL attribute: %s", + strerror(-r)); + return r; + } + + switch (t->ip6tnl_mode) { + case NETDEV_IP6_TNL_MODE_IP6IP6: + proto = IPPROTO_IPV6; + break; + case NETDEV_IP6_TNL_MODE_IPIP6: + proto = IPPROTO_IPIP; + break; + case NETDEV_IP6_TNL_MODE_ANYIP6: + default: + proto = 0; + break; + } + + r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PROTO, proto); + if (r < 0) { + log_netdev_error(netdev, + "Could not append IFLA_IPTUN_MODE attribute: %s", + strerror(-r)); + return r; + } + + return r; +} + static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { Tunnel *t = NULL; @@ -253,9 +389,21 @@ static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { case NETDEV_KIND_GRE: t = GRE(netdev); break; + case NETDEV_KIND_GRETAP: + t = GRETAP(netdev); + break; + case NETDEV_KIND_IP6GRE: + t = IP6GRE(netdev); + break; + case NETDEV_KIND_IP6GRETAP: + t = IP6GRETAP(netdev); + break; case NETDEV_KIND_VTI: t = VTI(netdev); break; + case NETDEV_KIND_IP6TNL: + t = IP6TNL(netdev); + break; default: assert_not_reached("Invalid tunnel kind"); } @@ -267,11 +415,18 @@ static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { return -EINVAL; } - if (t->family != AF_INET) { + if (t->family != AF_INET && t->family != AF_INET6) { log_warning("Tunnel with invalid address family configured in %s. Ignoring", filename); return -EINVAL; } + if (netdev->kind == NETDEV_KIND_IP6TNL) { + if (t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) { + log_warning("IP6 Tunnel without mode configured in %s. Ignoring", filename); + return -EINVAL; + } + } + return 0; } @@ -339,14 +494,46 @@ static void vti_init(NetDev *n) { } static void gre_init(NetDev *n) { - Tunnel *t = GRE(n); + Tunnel *t; assert(n); + + if (n->kind == NETDEV_KIND_GRE) + t = GRE(n); + else + t = GRETAP(n); + assert(t); t->pmtudisc = true; } +static void ip6gre_init(NetDev *n) { + Tunnel *t; + + assert(n); + + if (n->kind == NETDEV_KIND_IP6GRE) + t = IP6GRE(n); + else + t = IP6GRETAP(n); + + assert(t); + + t->ttl = DEFAULT_TNL_HOP_LIMIT; +} + +static void ip6tnl_init(NetDev *n) { + Tunnel *t = IP6TNL(n); + + assert(n); + assert(t); + + t->ttl = DEFAULT_TNL_HOP_LIMIT; + t->encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT; + t->ip6tnl_mode = _NETDEV_IP6_TNL_MODE_INVALID; +} + const NetDevVTable ipip_vtable = { .object_size = sizeof(Tunnel), .init = ipip_init, @@ -382,3 +569,39 @@ const NetDevVTable gre_vtable = { .create_type = NETDEV_CREATE_STACKED, .config_verify = netdev_tunnel_verify, }; + +const NetDevVTable gretap_vtable = { + .object_size = sizeof(Tunnel), + .init = gre_init, + .sections = "Match\0NetDev\0Tunnel\0", + .fill_message_create = netdev_gre_fill_message_create, + .create_type = NETDEV_CREATE_STACKED, + .config_verify = netdev_tunnel_verify, +}; + +const NetDevVTable ip6gre_vtable = { + .object_size = sizeof(Tunnel), + .init = ip6gre_init, + .sections = "Match\0NetDev\0Tunnel\0", + .fill_message_create = netdev_ip6gre_fill_message_create, + .create_type = NETDEV_CREATE_STACKED, + .config_verify = netdev_tunnel_verify, +}; + +const NetDevVTable ip6gretap_vtable = { + .object_size = sizeof(Tunnel), + .init = ip6gre_init, + .sections = "Match\0NetDev\0Tunnel\0", + .fill_message_create = netdev_ip6gre_fill_message_create, + .create_type = NETDEV_CREATE_STACKED, + .config_verify = netdev_tunnel_verify, +}; + +const NetDevVTable ip6tnl_vtable = { + .object_size = sizeof(Tunnel), + .init = ip6tnl_init, + .sections = "Match\0NetDev\0Tunnel\0", + .fill_message_create = netdev_ip6tnl_fill_message_create, + .create_type = NETDEV_CREATE_STACKED, + .config_verify = netdev_tunnel_verify, +};