#ifdef __KERNEL__
+#include <linux/bitmap.h>
#include <linux/if.h>
#include <linux/netdevice.h>
#include <linux/rcupdate.h>
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];
+ DECLARE_BITMAP(state, __NET_IPV4_CONF_MAX - 1);
};
extern struct ipv4_devconf ipv4_devconf;
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 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)
+#define IPV4_DEVCONF(cnf, attr) ((cnf).data[NET_IPV4_CONF_ ## attr - 1])
+#define IPV4_DEVCONF_ALL(attr) IPV4_DEVCONF(ipv4_devconf, attr)
+
+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--;
+ set_bit(index, in_dev->cnf.state);
+ in_dev->cnf.data[index] = val;
+}
+
+static inline void ipv4_devconf_setall(struct in_device *in_dev)
+{
+ bitmap_fill(in_dev->cnf.state, __NET_IPV4_CONF_MAX - 1);
+}
+
+#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
{
struct in_ifaddr *ifa_next;
struct in_device *ifa_dev;
struct rcu_head rcu_head;
- u32 ifa_local;
- u32 ifa_address;
- u32 ifa_mask;
- u32 ifa_broadcast;
- u32 ifa_anycast;
+ __be32 ifa_local;
+ __be32 ifa_address;
+ __be32 ifa_mask;
+ __be32 ifa_broadcast;
+ __be32 ifa_anycast;
unsigned char ifa_scope;
unsigned char ifa_flags;
unsigned char ifa_prefixlen;
extern int register_inetaddr_notifier(struct notifier_block *nb);
extern int unregister_inetaddr_notifier(struct notifier_block *nb);
-extern struct net_device *ip_dev_find(u32 addr);
-extern int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b);
+extern struct net_device *ip_dev_find(__be32 addr);
+extern int inet_addr_onlink(struct in_device *in_dev, __be32 a, __be32 b);
extern int devinet_ioctl(unsigned int cmd, void __user *);
extern void devinet_init(void);
-extern struct in_device *inetdev_init(struct net_device *dev);
extern struct in_device *inetdev_by_index(int);
-extern u32 inet_select_addr(const struct net_device *dev, u32 dst, int scope);
-extern u32 inet_confirm_addr(const struct net_device *dev, u32 dst, u32 local, int scope);
-extern struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, u32 prefix, u32 mask);
+extern __be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope);
+extern __be32 inet_confirm_addr(const struct net_device *dev, __be32 dst, __be32 local, int scope);
+extern struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix, __be32 mask);
extern void inet_forward_change(void);
-static __inline__ int inet_ifa_match(u32 addr, struct in_ifaddr *ifa)
+static __inline__ int inet_ifa_match(__be32 addr, struct in_ifaddr *ifa)
{
return !((addr^ifa->ifa_address)&ifa->ifa_mask);
}
* Check if a mask is acceptable.
*/
-static __inline__ int bad_mask(u32 mask, u32 addr)
+static __inline__ int bad_mask(__be32 mask, __be32 addr)
{
+ __u32 hmask;
if (addr & (mask = ~mask))
return 1;
- mask = ntohl(mask);
- if (mask & (mask+1))
+ hmask = ntohl(mask);
+ if (hmask & (hmask+1))
return 1;
return 0;
}
#endif /* __KERNEL__ */
-static __inline__ __u32 inet_make_mask(int logmask)
+static __inline__ __be32 inet_make_mask(int logmask)
{
if (logmask)
return htonl(~((1<<(32-logmask))-1));
return 0;
}
-static __inline__ int inet_mask_len(__u32 mask)
+static __inline__ int inet_mask_len(__be32 mask)
{
- if (!(mask = ntohl(mask)))
+ __u32 hmask = ntohl(mask);
+ if (!hmask)
return 0;
- return 32 - ffz(~mask);
+ return 32 - ffz(~hmask);
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff