fib_semantics.c (30bbaa19500559d7625c65632195413f639b3b97) fib_semantics.c (021dd3b8a142d482cb65a27bf6644e3764001460)
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * IPv4 Forwarding Information Base: semantics.
7 *
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>

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833 nh->nh_saddr = inet_select_addr(nh->nh_dev,
834 nh->nh_gw,
835 nh->nh_parent->fib_scope);
836 nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
837
838 return nh->nh_saddr;
839}
840
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * IPv4 Forwarding Information Base: semantics.
7 *
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>

--- 824 unchanged lines hidden (view full) ---

833 nh->nh_saddr = inet_select_addr(nh->nh_dev,
834 nh->nh_gw,
835 nh->nh_parent->fib_scope);
836 nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
837
838 return nh->nh_saddr;
839}
840
841static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc)
842{
843 if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
844 fib_prefsrc != cfg->fc_dst) {
845 int tb_id = cfg->fc_table;
846
847 if (tb_id == RT_TABLE_MAIN)
848 tb_id = RT_TABLE_LOCAL;
849
850 if (inet_addr_type_table(cfg->fc_nlinfo.nl_net,
851 fib_prefsrc, tb_id) != RTN_LOCAL) {
852 return false;
853 }
854 }
855 return true;
856}
857
841struct fib_info *fib_create_info(struct fib_config *cfg)
842{
843 int err;
844 struct fib_info *fi = NULL;
845 struct fib_info *ofi;
846 int nhs = 1;
847 struct net *net = cfg->fc_nlinfo.nl_net;
848

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1028 goto failure;
1029 if (nexthop_nh->nh_flags & RTNH_F_LINKDOWN)
1030 linkdown++;
1031 } endfor_nexthops(fi)
1032 if (linkdown == fi->fib_nhs)
1033 fi->fib_flags |= RTNH_F_LINKDOWN;
1034 }
1035
858struct fib_info *fib_create_info(struct fib_config *cfg)
859{
860 int err;
861 struct fib_info *fi = NULL;
862 struct fib_info *ofi;
863 int nhs = 1;
864 struct net *net = cfg->fc_nlinfo.nl_net;
865

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1045 goto failure;
1046 if (nexthop_nh->nh_flags & RTNH_F_LINKDOWN)
1047 linkdown++;
1048 } endfor_nexthops(fi)
1049 if (linkdown == fi->fib_nhs)
1050 fi->fib_flags |= RTNH_F_LINKDOWN;
1051 }
1052
1036 if (fi->fib_prefsrc) {
1037 if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
1038 fi->fib_prefsrc != cfg->fc_dst)
1039 if (inet_addr_type(net, fi->fib_prefsrc) != RTN_LOCAL)
1040 goto err_inval;
1041 }
1053 if (fi->fib_prefsrc && !fib_valid_prefsrc(cfg, fi->fib_prefsrc))
1054 goto err_inval;
1042
1043 change_nexthops(fi) {
1044 fib_info_update_nh_saddr(net, nexthop_nh);
1045 } endfor_nexthops(fi)
1046
1047link_it:
1048 ofi = fib_find_info(fi);
1049 if (ofi) {

--- 448 unchanged lines hidden --- 		1055
1056 change_nexthops(fi) {
1057 fib_info_update_nh_saddr(net, nexthop_nh);
1058 } endfor_nexthops(fi)
1059
1060link_it:
1061 ofi = fib_find_info(fi);
1062 if (ofi) {

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