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!

arch/sparc64/solaris/socksys.c

@@ -0,0 +1,211 @@
+/* $Id: socksys.c,v 1.21 2002/02/08 03:57:14 davem Exp $
+ * socksys.c: /dev/inet/ stuff for Solaris emulation.
+ *
+ * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997, 1998 Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)
+ * Copyright (C) 1995, 1996 Mike Jagdis (jaggy@purplet.demon.co.uk)
+ */
+
+/*
+ *  Dave, _please_ give me specifications on this fscking mess so that I
+ * could at least get it into the state when it wouldn't screw the rest of
+ * the kernel over.  socksys.c and timod.c _stink_ and we are not talking
+ * H2S here, it's isopropilmercaptan in concentrations way over LD50. -- AV
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/ioctl.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/syscalls.h>
+#include <linux/in.h>
+#include <linux/devfs_fs_kernel.h>
+
+#include <net/sock.h>
+
+#include <asm/uaccess.h>
+#include <asm/termios.h>
+
+#include "conv.h"
+#include "socksys.h"
+
+static int af_inet_protocols[] = {
+IPPROTO_ICMP, IPPROTO_ICMP, IPPROTO_IGMP, IPPROTO_IPIP, IPPROTO_TCP,
+IPPROTO_EGP, IPPROTO_PUP, IPPROTO_UDP, IPPROTO_IDP, IPPROTO_RAW,
+0, 0, 0, 0, 0, 0,
+};
+
+#ifndef DEBUG_SOLARIS_KMALLOC
+
+#define mykmalloc kmalloc
+#define mykfree kfree
+
+#else
+
+extern void * mykmalloc(size_t s, int gfp);
+extern void mykfree(void *);
+
+#endif
+
+static unsigned int (*sock_poll)(struct file *, poll_table *);
+
+static struct file_operations socksys_file_ops = {
+	/* Currently empty */
+};
+
+static int socksys_open(struct inode * inode, struct file * filp)
+{
+	int family, type, protocol, fd;
+	struct dentry *dentry;
+	int (*sys_socket)(int,int,int) =
+		(int (*)(int,int,int))SUNOS(97);
+        struct sol_socket_struct * sock;
+	
+	family = ((iminor(inode) >> 4) & 0xf);
+	switch (family) {
+	case AF_UNIX:
+		type = SOCK_STREAM;
+		protocol = 0;
+		break;
+	case AF_INET:
+		protocol = af_inet_protocols[iminor(inode) & 0xf];
+		switch (protocol) {
+		case IPPROTO_TCP: type = SOCK_STREAM; break;
+		case IPPROTO_UDP: type = SOCK_DGRAM; break;
+		default: type = SOCK_RAW; break;
+		}
+		break;
+	default:
+		type = SOCK_RAW;
+		protocol = 0;
+		break;
+	}
+
+	fd = sys_socket(family, type, protocol);
+	if (fd < 0)
+		return fd;
+	/*
+	 * N.B. The following operations are not legal!
+	 *
+	 * No shit.  WTF is it supposed to do, anyway?
+	 *
+	 * Try instead:
+	 * d_delete(filp->f_dentry), then d_instantiate with sock inode
+	 */
+	dentry = filp->f_dentry;
+	filp->f_dentry = dget(fcheck(fd)->f_dentry);
+	filp->f_dentry->d_inode->i_rdev = inode->i_rdev;
+	filp->f_dentry->d_inode->i_flock = inode->i_flock;
+	SOCKET_I(filp->f_dentry->d_inode)->file = filp;
+	filp->f_op = &socksys_file_ops;
+        sock = (struct sol_socket_struct*) 
+        	mykmalloc(sizeof(struct sol_socket_struct), GFP_KERNEL);
+        if (!sock) return -ENOMEM;
+	SOLDD(("sock=%016lx(%016lx)\n", sock, filp));
+        sock->magic = SOLARIS_SOCKET_MAGIC;
+        sock->modcount = 0;
+        sock->state = TS_UNBND;
+        sock->offset = 0;
+        sock->pfirst = sock->plast = NULL;
+        filp->private_data = sock;
+	SOLDD(("filp->private_data %016lx\n", filp->private_data));
+
+	sys_close(fd);
+	dput(dentry);
+	return 0;
+}
+
+static int socksys_release(struct inode * inode, struct file * filp)
+{
+        struct sol_socket_struct * sock;
+        struct T_primsg *it;
+
+	/* XXX: check this */
+	sock = (struct sol_socket_struct *)filp->private_data;
+	SOLDD(("sock release %016lx(%016lx)\n", sock, filp));
+	it = sock->pfirst;
+	while (it) {
+		struct T_primsg *next = it->next;
+		
+		SOLDD(("socksys_release %016lx->%016lx\n", it, next));
+		mykfree((char*)it);
+		it = next;
+	}
+	filp->private_data = NULL;
+	SOLDD(("socksys_release %016lx\n", sock));
+	mykfree((char*)sock);
+	return 0;
+}
+
+static unsigned int socksys_poll(struct file * filp, poll_table * wait)
+{
+	struct inode *ino;
+	unsigned int mask = 0;
+
+	ino=filp->f_dentry->d_inode;
+	if (ino && S_ISSOCK(ino->i_mode)) {
+		struct sol_socket_struct *sock;
+		sock = (struct sol_socket_struct*)filp->private_data;
+		if (sock && sock->pfirst) {
+			mask |= POLLIN | POLLRDNORM;
+			if (sock->pfirst->pri == MSG_HIPRI)
+				mask |= POLLPRI;
+		}
+	}
+	if (sock_poll)
+		mask |= (*sock_poll)(filp, wait);
+	return mask;
+}
+	
+static struct file_operations socksys_fops = {
+	.open =		socksys_open,
+	.release =	socksys_release,
+};
+
+int __init
+init_socksys(void)
+{
+	int ret;
+	struct file * file;
+	int (*sys_socket)(int,int,int) =
+		(int (*)(int,int,int))SUNOS(97);
+	int (*sys_close)(unsigned int) = 
+		(int (*)(unsigned int))SYS(close);
+	
+	ret = register_chrdev (30, "socksys", &socksys_fops);
+	if (ret < 0) {
+		printk ("Couldn't register socksys character device\n");
+		return ret;
+	}
+	ret = sys_socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (ret < 0) {
+		printk ("Couldn't create socket\n");
+		return ret;
+	}
+
+	devfs_mk_cdev(MKDEV(30, 0), S_IFCHR|S_IRUSR|S_IWUSR, "socksys");
+
+	file = fcheck(ret);
+	/* N.B. Is this valid? Suppose the f_ops are in a module ... */
+	socksys_file_ops = *file->f_op;
+	sys_close(ret);
+	sock_poll = socksys_file_ops.poll;
+	socksys_file_ops.poll = socksys_poll;
+	socksys_file_ops.release = socksys_release;
+	return 0;
+}
+
+void
+cleanup_socksys(void)
+{
+	if (unregister_chrdev(30, "socksys"))
+		printk ("Couldn't unregister socksys character device\n");
+	devfs_remove ("socksys");
+}