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On Mon, Sep 01, 2008 at 02:56:18PM +0200, Julius Volz wrote:
> From: Vince Busam <vbusam@xxxxxxxxxx>
>
> Add __ip_vs_addr_is_local_v6() to find out if an IPv6 address belongs to a
> local interface. Use this function to decide whether to set the
> IP_VS_CONN_F_LOCALNODE flag for IPv6 destinations.
Hi Vince,
could you please fix the following minor problems that were flagged
by checkpatch.pl ?
ERROR: open brace '{' following function declarations go on the next line
#78: FILE: net/ipv4/ipvs/ip_vs_ctl.c:100:
+static int __ip_vs_addr_is_local_v6(const struct in6_addr *addr) {
ERROR: do not use assignment in if condition
#87: FILE: net/ipv4/ipvs/ip_vs_ctl.c:109:
+ if ((rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl)))
> Signed-off-by: Vince Busam <vbusam@xxxxxxxxxx>
>
> 1 files changed, 46 insertions(+), 7 deletions(-)
>
> diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
> index fe17504..3ce2873 100644
> --- a/net/ipv4/ipvs/ip_vs_ctl.c
> +++ b/net/ipv4/ipvs/ip_vs_ctl.c
> @@ -35,6 +35,10 @@
>
> #include <net/net_namespace.h>
> #include <net/ip.h>
> +#ifdef CONFIG_IP_VS_IPV6
> +#include <net/ipv6.h>
> +#include <net/ip6_route.h>
> +#endif
> #include <net/route.h>
> #include <net/sock.h>
> #include <net/genetlink.h>
> @@ -91,6 +95,23 @@ int ip_vs_get_debug_level(void)
> }
> #endif
>
> +#ifdef CONFIG_IP_VS_IPV6
> +/* Taken from rt6_fill_node() in net/ipv6/route.c, is there a better way? */
> +static int __ip_vs_addr_is_local_v6(const struct in6_addr *addr) {
> + struct rt6_info *rt;
> + struct flowi fl = {
> + .oif = 0,
> + .nl_u = {
> + .ip6_u = {
> + .daddr = *addr,
> + .saddr = { .s6_addr32 = {0, 0, 0, 0} }, } },
> + };
> + if ((rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl)))
> + if (rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
> + return 1;
> + return 0;
> +}
> +#endif
> /*
> * update_defense_level is called from keventd and from sysctl,
> * so it needs to protect itself from softirqs
> @@ -750,10 +771,18 @@ __ip_vs_update_dest(struct ip_vs_service *svc,
> conn_flags = udest->conn_flags | IP_VS_CONN_F_INACTIVE;
>
> /* check if local node and update the flags */
> - if (inet_addr_type(&init_net, udest->addr.ip) == RTN_LOCAL) {
> - conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
> - | IP_VS_CONN_F_LOCALNODE;
> - }
> +#ifdef CONFIG_IP_VS_IPV6
> + if (svc->af == AF_INET6) {
> + if (__ip_vs_addr_is_local_v6(&udest->addr.in6)) {
> + conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
> + | IP_VS_CONN_F_LOCALNODE;
> + }
> + } else
> +#endif
> + if (inet_addr_type(&init_net, udest->addr.ip) == RTN_LOCAL) {
> + conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
> + | IP_VS_CONN_F_LOCALNODE;
> + }
>
> /* set the IP_VS_CONN_F_NOOUTPUT flag if not masquerading/NAT */
> if ((conn_flags & IP_VS_CONN_F_FWD_MASK) != 0) {
> @@ -802,9 +831,19 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct
> ip_vs_dest_user_kern *udest,
>
> EnterFunction(2);
>
> - atype = inet_addr_type(&init_net, udest->addr.ip);
> - if (atype != RTN_LOCAL && atype != RTN_UNICAST)
> - return -EINVAL;
> +#ifdef CONFIG_IP_VS_IPV6
> + if (svc->af == AF_INET6) {
> + atype = ipv6_addr_type(&udest->addr.in6);
> + if (!(atype & IPV6_ADDR_UNICAST) &&
> + !__ip_vs_addr_is_local_v6(&udest->addr.in6))
> + return -EINVAL;
> + } else
> +#endif
> + {
> + atype = inet_addr_type(&init_net, udest->addr.ip);
> + if (atype != RTN_LOCAL && atype != RTN_UNICAST)
> + return -EINVAL;
> + }
>
> dest = kzalloc(sizeof(struct ip_vs_dest), GFP_ATOMIC);
> if (dest == NULL) {
> --
> 1.5.4.5
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