Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
new file mode 100644
index 0000000..b60b384
--- /dev/null
+++ b/include/net/af_unix.h
@@ -0,0 +1,78 @@
+#ifndef __LINUX_NET_AFUNIX_H
+#define __LINUX_NET_AFUNIX_H
+extern void unix_inflight(struct file *fp);
+extern void unix_notinflight(struct file *fp);
+extern void unix_gc(void);
+
+#define UNIX_HASH_SIZE 256
+
+extern struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
+extern rwlock_t unix_table_lock;
+
+extern atomic_t unix_tot_inflight;
+
+static inline struct sock *first_unix_socket(int *i)
+{
+ for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
+ if (!hlist_empty(&unix_socket_table[*i]))
+ return __sk_head(&unix_socket_table[*i]);
+ }
+ return NULL;
+}
+
+static inline struct sock *next_unix_socket(int *i, struct sock *s)
+{
+ struct sock *next = sk_next(s);
+ /* More in this chain? */
+ if (next)
+ return next;
+ /* Look for next non-empty chain. */
+ for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
+ if (!hlist_empty(&unix_socket_table[*i]))
+ return __sk_head(&unix_socket_table[*i]);
+ }
+ return NULL;
+}
+
+#define forall_unix_sockets(i, s) \
+ for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
+
+struct unix_address {
+ atomic_t refcnt;
+ int len;
+ unsigned hash;
+ struct sockaddr_un name[0];
+};
+
+struct unix_skb_parms {
+ struct ucred creds; /* Skb credentials */
+ struct scm_fp_list *fp; /* Passed files */
+};
+
+#define UNIXCB(skb) (*(struct unix_skb_parms*)&((skb)->cb))
+#define UNIXCREDS(skb) (&UNIXCB((skb)).creds)
+
+#define unix_state_rlock(s) read_lock(&unix_sk(s)->lock)
+#define unix_state_runlock(s) read_unlock(&unix_sk(s)->lock)
+#define unix_state_wlock(s) write_lock(&unix_sk(s)->lock)
+#define unix_state_wunlock(s) write_unlock(&unix_sk(s)->lock)
+
+#ifdef __KERNEL__
+/* The AF_UNIX socket */
+struct unix_sock {
+ /* WARNING: sk has to be the first member */
+ struct sock sk;
+ struct unix_address *addr;
+ struct dentry *dentry;
+ struct vfsmount *mnt;
+ struct semaphore readsem;
+ struct sock *peer;
+ struct sock *other;
+ struct sock *gc_tree;
+ atomic_t inflight;
+ rwlock_t lock;
+ wait_queue_head_t peer_wait;
+};
+#define unix_sk(__sk) ((struct unix_sock *)__sk)
+#endif
+#endif
