From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Ahern Subject: [PATCH net-next 7/9] net: Add routes to the table associated with the device Date: Mon, 10 Aug 2015 11:50:34 -0600 Message-ID: <1439229037-79213-8-git-send-email-dsa@cumulusnetworks.com> References: <1439229037-79213-1-git-send-email-dsa@cumulusnetworks.com> Cc: shm@cumulusnetworks.com, roopa@cumulusnetworks.com, gospo@cumulusnetworks.com, jtoppins@cumulusnetworks.com, nikolay@cumulusnetworks.com, ddutt@cumulusnetworks.com, hannes@stressinduktion.org, nicolas.dichtel@6wind.com, stephen@networkplumber.org, hadi@mojatatu.com, ebiederm@xmission.com, davem@davemloft.net, svaidya@brocade.com, David Ahern To: netdev@vger.kernel.org Return-path: Received: from mail-io0-f175.google.com ([209.85.223.175]:33151 "EHLO mail-io0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932097AbbHJRwy (ORCPT ); Mon, 10 Aug 2015 13:52:54 -0400 Received: by ioii16 with SMTP id i16so177204267ioi.0 for ; Mon, 10 Aug 2015 10:52:53 -0700 (PDT) In-Reply-To: <1439229037-79213-1-git-send-email-dsa@cumulusnetworks.com> Sender: netdev-owner@vger.kernel.org List-ID: When a device associated with a VRF is brought up or down routes should be added to/removed from the table associated with the VRF. fib_magic defaults to using the main or local tables. Have it use the table with the device if there is one. A part of this is directing prefsrc validations to the correct table as well. Signed-off-by: David Ahern --- net/ipv4/fib_frontend.c | 8 ++++---- net/ipv4/fib_semantics.c | 25 +++++++++++++++++++------ 2 files changed, 23 insertions(+), 10 deletions(-) diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index d84ae0e30369..0a50a08ab844 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -803,6 +803,7 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifaddr *ifa) { struct net *net = dev_net(ifa->ifa_dev->dev); + int tb_id = vrf_dev_table_rtnl(ifa->ifa_dev->dev); struct fib_table *tb; struct fib_config cfg = { .fc_protocol = RTPROT_KERNEL, @@ -817,11 +818,10 @@ static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifad }, }; - if (type == RTN_UNICAST) - tb = fib_new_table(net, RT_TABLE_MAIN); - else - tb = fib_new_table(net, RT_TABLE_LOCAL); + if (!tb_id) + tb_id = (type == RTN_UNICAST) ? RT_TABLE_MAIN : RT_TABLE_LOCAL; + tb = fib_new_table(net, tb_id); if (!tb) return; diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 410ddb67221e..85e9a8abf15c 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -838,6 +838,23 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh) return nh->nh_saddr; } +static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc) +{ + if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst || + fib_prefsrc != cfg->fc_dst) { + int tb_id = cfg->fc_table; + + if (tb_id == RT_TABLE_MAIN) + tb_id = RT_TABLE_LOCAL; + + if (inet_addr_type_table(cfg->fc_nlinfo.nl_net, + fib_prefsrc, tb_id) != RTN_LOCAL) { + return false; + } + } + return true; +} + struct fib_info *fib_create_info(struct fib_config *cfg) { int err; @@ -1033,12 +1050,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg) fi->fib_flags |= RTNH_F_LINKDOWN; } - if (fi->fib_prefsrc) { - if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst || - fi->fib_prefsrc != cfg->fc_dst) - if (inet_addr_type(net, fi->fib_prefsrc) != RTN_LOCAL) - goto err_inval; - } + if (fi->fib_prefsrc && !fib_valid_prefsrc(cfg, fi->fib_prefsrc)) + goto err_inval; change_nexthops(fi) { fib_info_update_nh_saddr(net, nexthop_nh); -- 2.3.2 (Apple Git-55)