4 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 699e85c01a4d..b2304929434e 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -81,6 +81,7 @@ static inline void ipv4_devconf_setall(struct in_device *in_dev)
 #define IN_DEV_FORWARD(in_dev)          IN_DEV_CONF_GET((in_dev), FORWARDING)
 #define IN_DEV_MFORWARD(in_dev)         IN_DEV_ANDCONF((in_dev), MC_FORWARDING)
 #define IN_DEV_RPFILTER(in_dev)         IN_DEV_MAXCONF((in_dev), RP_FILTER)
+#define IN_DEV_SRC_VMARK(in_dev)        IN_DEV_ORCONF((in_dev), SRC_VMARK)
 #define IN_DEV_SOURCE_ROUTE(in_dev)     IN_DEV_ANDCONF((in_dev), \
                                                        ACCEPT_SOURCE_ROUTE)
 #define IN_DEV_ACCEPT_LOCAL(in_dev)     IN_DEV_ORCONF((in_dev), ACCEPT_LOCAL)
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 877ba039e6a4..bd27fbc9db62 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -482,6 +482,7 @@ enum
         NET_IPV4_CONF_ARP_ACCEPT=21,
         NET_IPV4_CONF_ARP_NOTIFY=22,
         NET_IPV4_CONF_ACCEPT_LOCAL=23,
+        NET_IPV4_CONF_SRC_VMARK=24,
         __NET_IPV4_CONF_MAX
 };
 
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 5cdbc102a418..040c4f05b653 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1397,6 +1397,7 @@ static struct devinet_sysctl_table {
                 DEVINET_SYSCTL_RW_ENTRY(ACCEPT_SOURCE_ROUTE,
                                         "accept_source_route"),
                 DEVINET_SYSCTL_RW_ENTRY(ACCEPT_LOCAL, "accept_local"),
+                DEVINET_SYSCTL_RW_ENTRY(SRC_VMARK, "src_valid_mark"),
                 DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP, "proxy_arp"),
                 DEVINET_SYSCTL_RW_ENTRY(MEDIUM_ID, "medium_id"),
                 DEVINET_SYSCTL_RW_ENTRY(BOOTP_RELAY, "bootp_relay"),
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 3323168ee52d..82dbf711d6d0 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -252,6 +252,8 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
                 no_addr = in_dev->ifa_list == NULL;
                 rpf = IN_DEV_RPFILTER(in_dev);
                 accept_local = IN_DEV_ACCEPT_LOCAL(in_dev);
+                if (mark && !IN_DEV_SRC_VMARK(in_dev))
+                        fl.mark = 0;
         }
         rcu_read_unlock();