util-vserver-0.30.208

[util-vserver.git] / kernel / network.h

diff --git a/kernel/network.h b/kernel/network.h
new file mode 100644 (file)
index 0000000..29c5bd2
--- /dev/null
+++ b/kernel/network.h
@@ -0,0 +1,96 @@
+#ifndef _VX_NETWORK_H
+#define _VX_NETWORK_H
+
+#include <linux/types.h>
+
+
+#define MAX_N_CONTEXT  65535   /* Arbitrary limit */
+
+#define NX_DYNAMIC_ID  ((uint32_t)-1)          /* id for dynamic context */
+
+#define NB_IPV4ROOT    16
+
+
+/* network flags */
+
+#define NXF_STATE_SETUP                (1ULL<<32)
+
+#define NXF_STATE_HELPER       (1ULL<<36)
+
+#define NXF_ONE_TIME           (0x0001ULL<<32)
+
+#define NXF_INIT_SET           (0)
+
+
+/* address types */
+
+#define        NXA_TYPE_IPV4           1
+#define        NXA_TYPE_IPV6           2
+
+#define        NXA_MOD_BCAST           (1<<8)
+
+#define        NXA_TYPE_ANY            (~0)
+
+
+#ifdef __KERNEL__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
+#include <asm/atomic.h>
+
+
+struct nx_info {
+       struct hlist_node nx_hlist;     /* linked list of nxinfos */
+       nid_t nx_id;                    /* vnet id */
+       atomic_t nx_usecnt;             /* usage count */
+       atomic_t nx_tasks;              /* tasks count */
+       int nx_state;                   /* context state */
+
+       uint64_t nx_flags;              /* network flag word */
+       uint64_t nx_ncaps;              /* network capabilities */
+
+       int nbipv4;
+       __u32 ipv4[NB_IPV4ROOT];        /* Process can only bind to these IPs */
+                                       /* The first one is used to connect */
+                                       /* and for bind any service */
+                                       /* The other must be used explicity */
+       __u32 mask[NB_IPV4ROOT];        /* Netmask for each ipv4 */
+                                       /* Used to select the proper source */
+                                       /* address for sockets */
+       __u32 v4_bcast;                 /* Broadcast address to receive UDP  */
+
+       char nx_name[65];               /* network context name */
+};
+
+
+/* status flags */
+
+#define NXS_HASHED      0x0001
+#define NXS_SHUTDOWN    0x0100
+#define NXS_RELEASED    0x8000
+
+extern struct nx_info *locate_nx_info(int);
+extern struct nx_info *locate_or_create_nx_info(int);
+
+extern int get_nid_list(int, unsigned int *, int);
+extern int nid_is_hashed(nid_t);
+
+extern int nx_migrate_task(struct task_struct *, struct nx_info *);
+
+extern long vs_net_change(struct nx_info *, unsigned int);
+
+struct in_ifaddr;
+struct net_device;
+
+int ifa_in_nx_info(struct in_ifaddr *, struct nx_info *);
+int dev_in_nx_info(struct net_device *, struct nx_info *);
+
+struct sock;
+
+int nx_addr_conflict(struct nx_info *, uint32_t, struct sock *);
+
+#endif /* __KERNEL__ */
+#else  /* _VX_NETWORK_H */
+#warning duplicate inclusion
+#endif /* _VX_NETWORK_H */