[IPV4]: Convert IPv4 devconf to an array
This patch converts the ipv4_devconf config members (everything except
sysctl) to an array. This allows easier manipulation which will be
needed later on to provide better management of default config values.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index c0f7aec..1ef174d 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -10,28 +10,8 @@
struct ipv4_devconf
{
- int accept_redirects;
- int send_redirects;
- int secure_redirects;
- int shared_media;
- int accept_source_route;
- int rp_filter;
- int proxy_arp;
- int bootp_relay;
- int log_martians;
- int forwarding;
- int mc_forwarding;
- int tag;
- int arp_filter;
- int arp_announce;
- int arp_ignore;
- int arp_accept;
- int medium_id;
- int no_xfrm;
- int no_policy;
- int force_igmp_version;
- int promote_secondaries;
void *sysctl;
+ int data[__NET_IPV4_CONF_MAX - 1];
};
extern struct ipv4_devconf ipv4_devconf;
@@ -60,30 +40,64 @@
struct rcu_head rcu_head;
};
-#define IN_DEV_FORWARD(in_dev) ((in_dev)->cnf.forwarding)
-#define IN_DEV_MFORWARD(in_dev) (ipv4_devconf.mc_forwarding && (in_dev)->cnf.mc_forwarding)
-#define IN_DEV_RPFILTER(in_dev) (ipv4_devconf.rp_filter && (in_dev)->cnf.rp_filter)
-#define IN_DEV_SOURCE_ROUTE(in_dev) (ipv4_devconf.accept_source_route && (in_dev)->cnf.accept_source_route)
-#define IN_DEV_BOOTP_RELAY(in_dev) (ipv4_devconf.bootp_relay && (in_dev)->cnf.bootp_relay)
+#define IPV4_DEVCONF(cnf, attr) ((cnf).data[NET_IPV4_CONF_ ## attr - 1])
+#define IPV4_DEVCONF_ALL(attr) IPV4_DEVCONF(ipv4_devconf, attr)
-#define IN_DEV_LOG_MARTIANS(in_dev) (ipv4_devconf.log_martians || (in_dev)->cnf.log_martians)
-#define IN_DEV_PROXY_ARP(in_dev) (ipv4_devconf.proxy_arp || (in_dev)->cnf.proxy_arp)
-#define IN_DEV_SHARED_MEDIA(in_dev) (ipv4_devconf.shared_media || (in_dev)->cnf.shared_media)
-#define IN_DEV_TX_REDIRECTS(in_dev) (ipv4_devconf.send_redirects || (in_dev)->cnf.send_redirects)
-#define IN_DEV_SEC_REDIRECTS(in_dev) (ipv4_devconf.secure_redirects || (in_dev)->cnf.secure_redirects)
-#define IN_DEV_IDTAG(in_dev) ((in_dev)->cnf.tag)
-#define IN_DEV_MEDIUM_ID(in_dev) ((in_dev)->cnf.medium_id)
-#define IN_DEV_PROMOTE_SECONDARIES(in_dev) (ipv4_devconf.promote_secondaries || (in_dev)->cnf.promote_secondaries)
+static inline int ipv4_devconf_get(struct in_device *in_dev, int index)
+{
+ index--;
+ return in_dev->cnf.data[index];
+}
+
+static inline void ipv4_devconf_set(struct in_device *in_dev, int index,
+ int val)
+{
+ index--;
+ in_dev->cnf.data[index] = val;
+}
+
+#define IN_DEV_CONF_GET(in_dev, attr) \
+ ipv4_devconf_get((in_dev), NET_IPV4_CONF_ ## attr)
+#define IN_DEV_CONF_SET(in_dev, attr, val) \
+ ipv4_devconf_set((in_dev), NET_IPV4_CONF_ ## attr, (val))
+
+#define IN_DEV_ANDCONF(in_dev, attr) \
+ (IPV4_DEVCONF_ALL(attr) && IN_DEV_CONF_GET((in_dev), attr))
+#define IN_DEV_ORCONF(in_dev, attr) \
+ (IPV4_DEVCONF_ALL(attr) || IN_DEV_CONF_GET((in_dev), attr))
+#define IN_DEV_MAXCONF(in_dev, attr) \
+ (max(IPV4_DEVCONF_ALL(attr), IN_DEV_CONF_GET((in_dev), attr)))
+
+#define IN_DEV_FORWARD(in_dev) IN_DEV_CONF_GET((in_dev), FORWARDING)
+#define IN_DEV_MFORWARD(in_dev) (IPV4_DEVCONF_ALL(MC_FORWARDING) && \
+ IPV4_DEVCONF((in_dev)->cnf, \
+ MC_FORWARDING))
+#define IN_DEV_RPFILTER(in_dev) IN_DEV_ANDCONF((in_dev), RP_FILTER)
+#define IN_DEV_SOURCE_ROUTE(in_dev) IN_DEV_ANDCONF((in_dev), \
+ ACCEPT_SOURCE_ROUTE)
+#define IN_DEV_BOOTP_RELAY(in_dev) IN_DEV_ANDCONF((in_dev), BOOTP_RELAY)
+
+#define IN_DEV_LOG_MARTIANS(in_dev) IN_DEV_ORCONF((in_dev), LOG_MARTIANS)
+#define IN_DEV_PROXY_ARP(in_dev) IN_DEV_ORCONF((in_dev), PROXY_ARP)
+#define IN_DEV_SHARED_MEDIA(in_dev) IN_DEV_ORCONF((in_dev), SHARED_MEDIA)
+#define IN_DEV_TX_REDIRECTS(in_dev) IN_DEV_ORCONF((in_dev), SEND_REDIRECTS)
+#define IN_DEV_SEC_REDIRECTS(in_dev) IN_DEV_ORCONF((in_dev), \
+ SECURE_REDIRECTS)
+#define IN_DEV_IDTAG(in_dev) IN_DEV_CONF_GET(in_dev, TAG)
+#define IN_DEV_MEDIUM_ID(in_dev) IN_DEV_CONF_GET(in_dev, MEDIUM_ID)
+#define IN_DEV_PROMOTE_SECONDARIES(in_dev) \
+ IN_DEV_ORCONF((in_dev), \
+ PROMOTE_SECONDARIES)
#define IN_DEV_RX_REDIRECTS(in_dev) \
((IN_DEV_FORWARD(in_dev) && \
- (ipv4_devconf.accept_redirects && (in_dev)->cnf.accept_redirects)) \
+ IN_DEV_ANDCONF((in_dev), ACCEPT_REDIRECTS)) \
|| (!IN_DEV_FORWARD(in_dev) && \
- (ipv4_devconf.accept_redirects || (in_dev)->cnf.accept_redirects)))
+ IN_DEV_ORCONF((in_dev), ACCEPT_REDIRECTS)))
-#define IN_DEV_ARPFILTER(in_dev) (ipv4_devconf.arp_filter || (in_dev)->cnf.arp_filter)
-#define IN_DEV_ARP_ANNOUNCE(in_dev) (max(ipv4_devconf.arp_announce, (in_dev)->cnf.arp_announce))
-#define IN_DEV_ARP_IGNORE(in_dev) (max(ipv4_devconf.arp_ignore, (in_dev)->cnf.arp_ignore))
+#define IN_DEV_ARPFILTER(in_dev) IN_DEV_ORCONF((in_dev), ARPFILTER)
+#define IN_DEV_ARP_ANNOUNCE(in_dev) IN_DEV_MAXCONF((in_dev), ARP_ANNOUNCE)
+#define IN_DEV_ARP_IGNORE(in_dev) IN_DEV_MAXCONF((in_dev), ARP_IGNORE)
struct in_ifaddr
{