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!

net/decnet/sysctl_net_decnet.c

@@ -0,0 +1,480 @@
+/*
+ * DECnet       An implementation of the DECnet protocol suite for the LINUX
+ *              operating system.  DECnet is implemented using the  BSD Socket
+ *              interface as the means of communication with the user level.
+ *
+ *              DECnet sysctl support functions
+ *
+ * Author:      Steve Whitehouse <SteveW@ACM.org>
+ *
+ *
+ * Changes:
+ * Steve Whitehouse - C99 changes and default device handling
+ *
+ */
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+#include <linux/fs.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <net/neighbour.h>
+#include <net/dst.h>
+#include <net/flow.h>
+
+#include <asm/uaccess.h>
+
+#include <net/dn.h>
+#include <net/dn_dev.h>
+#include <net/dn_route.h>
+
+
+int decnet_debug_level;
+int decnet_time_wait = 30;
+int decnet_dn_count = 1;
+int decnet_di_count = 3;
+int decnet_dr_count = 3;
+int decnet_log_martians = 1;
+int decnet_no_fc_max_cwnd = NSP_MIN_WINDOW;
+
+#ifdef CONFIG_SYSCTL
+extern int decnet_dst_gc_interval;
+static int min_decnet_time_wait[] = { 5 };
+static int max_decnet_time_wait[] = { 600 };
+static int min_state_count[] = { 1 };
+static int max_state_count[] = { NSP_MAXRXTSHIFT };
+static int min_decnet_dst_gc_interval[] = { 1 };
+static int max_decnet_dst_gc_interval[] = { 60 };
+static int min_decnet_no_fc_max_cwnd[] = { NSP_MIN_WINDOW };
+static int max_decnet_no_fc_max_cwnd[] = { NSP_MAX_WINDOW };
+static char node_name[7] = "???";
+
+static struct ctl_table_header *dn_table_header = NULL;
+
+/*
+ * ctype.h :-)
+ */
+#define ISNUM(x) (((x) >= '0') && ((x) <= '9'))
+#define ISLOWER(x) (((x) >= 'a') && ((x) <= 'z'))
+#define ISUPPER(x) (((x) >= 'A') && ((x) <= 'Z'))
+#define ISALPHA(x) (ISLOWER(x) || ISUPPER(x))
+#define INVALID_END_CHAR(x) (ISNUM(x) || ISALPHA(x))
+
+static void strip_it(char *str)
+{
+	for(;;) {
+		switch(*str) {
+			case ' ':
+			case '\n':
+			case '\r':
+			case ':':
+				*str = 0;
+			case 0:
+				return;
+		}
+		str++;
+	}
+}
+
+/*
+ * Simple routine to parse an ascii DECnet address
+ * into a network order address.
+ */
+static int parse_addr(dn_address *addr, char *str)
+{
+	dn_address area, node;
+
+	while(*str && !ISNUM(*str)) str++;
+
+	if (*str == 0)
+		return -1;
+
+	area = (*str++ - '0');
+	if (ISNUM(*str)) {
+		area *= 10;
+		area += (*str++ - '0');
+	}
+
+	if (*str++ != '.')
+		return -1;
+
+	if (!ISNUM(*str))
+		return -1;
+
+	node = *str++ - '0';
+	if (ISNUM(*str)) {
+		node *= 10;
+		node += (*str++ - '0');
+	}
+	if (ISNUM(*str)) {
+		node *= 10;
+		node += (*str++ - '0');
+	}
+	if (ISNUM(*str)) {
+		node *= 10;
+		node += (*str++ - '0');
+	}
+
+	if ((node > 1023) || (area > 63))
+		return -1;
+
+	if (INVALID_END_CHAR(*str))
+		return -1;
+
+	*addr = dn_htons((area << 10) | node);
+
+	return 0;
+}
+
+
+static int dn_node_address_strategy(ctl_table *table, int __user *name, int nlen,
+				void __user *oldval, size_t __user *oldlenp,
+				void __user *newval, size_t newlen,
+				void **context)
+{
+	size_t len;
+	dn_address addr;
+
+	if (oldval && oldlenp) {
+		if (get_user(len, oldlenp))
+			return -EFAULT;
+		if (len) {
+			if (len != sizeof(unsigned short))
+				return -EINVAL;
+			if (put_user(decnet_address, (unsigned short __user *)oldval))
+				return -EFAULT;
+		}
+	}
+	if (newval && newlen) {
+		if (newlen != sizeof(unsigned short))
+			return -EINVAL;
+		if (get_user(addr, (unsigned short __user *)newval))
+			return -EFAULT;
+
+		dn_dev_devices_off();
+
+		decnet_address = addr;
+
+		dn_dev_devices_on();
+	}
+	return 0;
+}
+
+static int dn_node_address_handler(ctl_table *table, int write, 
+				struct file *filp,
+				void __user *buffer,
+				size_t *lenp, loff_t *ppos)
+{
+	char addr[DN_ASCBUF_LEN];
+	size_t len;
+	dn_address dnaddr;
+
+	if (!*lenp || (*ppos && !write)) {
+		*lenp = 0;
+		return 0;
+	}
+
+	if (write) {
+		int len = (*lenp < DN_ASCBUF_LEN) ? *lenp : (DN_ASCBUF_LEN-1);
+
+		if (copy_from_user(addr, buffer, len))
+			return -EFAULT;
+
+		addr[len] = 0;
+		strip_it(addr);
+
+		if (parse_addr(&dnaddr, addr))
+			return -EINVAL;
+
+		dn_dev_devices_off();
+
+		decnet_address = dnaddr;
+
+		dn_dev_devices_on();
+
+		*ppos += len;
+
+		return 0;
+	}
+
+	dn_addr2asc(dn_ntohs(decnet_address), addr);
+	len = strlen(addr);
+	addr[len++] = '\n';
+
+	if (len > *lenp) len = *lenp;
+
+	if (copy_to_user(buffer, addr, len))
+		return -EFAULT;
+
+	*lenp = len;
+	*ppos += len;
+
+	return 0;
+}
+
+
+static int dn_def_dev_strategy(ctl_table *table, int __user *name, int nlen,
+				void __user *oldval, size_t __user *oldlenp,
+				void __user *newval, size_t newlen,
+				void **context)
+{
+	size_t len;
+	struct net_device *dev;
+	char devname[17];
+	size_t namel;
+	int rv = 0;
+
+	devname[0] = 0;
+
+	if (oldval && oldlenp) {
+		if (get_user(len, oldlenp))
+			return -EFAULT;
+		if (len) {
+			dev = dn_dev_get_default();
+			if (dev) {
+				strcpy(devname, dev->name);
+				dev_put(dev);
+			}
+
+			namel = strlen(devname) + 1;
+			if (len > namel) len = namel;	
+
+			if (copy_to_user(oldval, devname, len))
+				return -EFAULT;
+
+			if (put_user(len, oldlenp))
+				return -EFAULT;
+		}
+	}
+
+	if (newval && newlen) {
+		if (newlen > 16)
+			return -E2BIG;
+
+		if (copy_from_user(devname, newval, newlen))
+			return -EFAULT;
+
+		devname[newlen] = 0;
+
+		dev = dev_get_by_name(devname);
+		if (dev == NULL)
+			return -ENODEV;
+
+		rv = -ENODEV;
+		if (dev->dn_ptr != NULL) {
+			rv = dn_dev_set_default(dev, 1);
+			if (rv)
+				dev_put(dev);
+		}
+	}
+
+	return rv;
+}
+
+
+static int dn_def_dev_handler(ctl_table *table, int write, 
+				struct file * filp,
+				void __user *buffer,
+				size_t *lenp, loff_t *ppos)
+{
+	size_t len;
+	struct net_device *dev;
+	char devname[17];
+
+	if (!*lenp || (*ppos && !write)) {
+		*lenp = 0;
+		return 0;
+	}
+
+	if (write) {
+		if (*lenp > 16)
+			return -E2BIG;
+
+		if (copy_from_user(devname, buffer, *lenp))
+			return -EFAULT;
+
+		devname[*lenp] = 0;
+		strip_it(devname);
+
+		dev = dev_get_by_name(devname);
+		if (dev == NULL)
+			return -ENODEV;
+
+		if (dev->dn_ptr == NULL) {
+			dev_put(dev);
+			return -ENODEV;
+		}
+
+		if (dn_dev_set_default(dev, 1)) {
+			dev_put(dev);
+			return -ENODEV;
+		}
+		*ppos += *lenp;
+
+		return 0;
+	}
+
+	dev = dn_dev_get_default();
+	if (dev == NULL) {
+		*lenp = 0;
+		return 0;
+	}
+
+	strcpy(devname, dev->name);
+	dev_put(dev);
+	len = strlen(devname);
+	devname[len++] = '\n';
+
+	if (len > *lenp) len = *lenp;
+
+	if (copy_to_user(buffer, devname, len))
+		return -EFAULT;
+
+	*lenp = len;
+	*ppos += len;
+
+	return 0;
+}
+
+static ctl_table dn_table[] = {
+	{
+		.ctl_name = NET_DECNET_NODE_ADDRESS, 
+		.procname = "node_address", 
+		.maxlen = 7, 
+		.mode = 0644, 
+		.proc_handler = dn_node_address_handler,
+		.strategy = dn_node_address_strategy,
+	},
+	{
+		.ctl_name = NET_DECNET_NODE_NAME,
+		.procname = "node_name",
+		.data = node_name, 
+		.maxlen = 7,
+		.mode = 0644,
+		.proc_handler = &proc_dostring,
+		.strategy = &sysctl_string,
+	},
+	{
+		.ctl_name = NET_DECNET_DEFAULT_DEVICE,
+		.procname = "default_device", 
+		.maxlen = 16, 
+		.mode = 0644,
+		.proc_handler = dn_def_dev_handler,
+		.strategy = dn_def_dev_strategy,
+	},
+	{
+		.ctl_name = NET_DECNET_TIME_WAIT,
+		.procname = "time_wait",
+		.data = &decnet_time_wait,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.strategy = &sysctl_intvec,
+		.extra1 = &min_decnet_time_wait,
+		.extra2 = &max_decnet_time_wait
+	},
+	{
+		.ctl_name = NET_DECNET_DN_COUNT,
+		.procname = "dn_count",
+		.data = &decnet_dn_count,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.strategy = &sysctl_intvec,
+		.extra1 = &min_state_count,
+		.extra2 = &max_state_count
+	},
+	{
+		.ctl_name = NET_DECNET_DI_COUNT,
+		.procname = "di_count",
+		.data = &decnet_di_count,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.strategy = &sysctl_intvec,
+		.extra1 = &min_state_count,
+		.extra2 = &max_state_count
+	},
+	{
+		.ctl_name = NET_DECNET_DR_COUNT,
+		.procname = "dr_count",
+		.data = &decnet_dr_count,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.strategy = &sysctl_intvec,
+		.extra1 = &min_state_count,
+		.extra2 = &max_state_count
+	},
+	{
+		.ctl_name = NET_DECNET_DST_GC_INTERVAL,
+		.procname = "dst_gc_interval",
+		.data = &decnet_dst_gc_interval,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.strategy = &sysctl_intvec,
+		.extra1 = &min_decnet_dst_gc_interval,
+		.extra2 = &max_decnet_dst_gc_interval
+	},
+	{
+		.ctl_name = NET_DECNET_NO_FC_MAX_CWND,
+		.procname = "no_fc_max_cwnd",
+		.data = &decnet_no_fc_max_cwnd,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.strategy = &sysctl_intvec,
+		.extra1 = &min_decnet_no_fc_max_cwnd,
+		.extra2 = &max_decnet_no_fc_max_cwnd
+	},
+	{
+		.ctl_name = NET_DECNET_DEBUG_LEVEL,
+		.procname = "debug",
+		.data = &decnet_debug_level,
+		.maxlen = sizeof(int),
+		.mode = 0644,
+		.proc_handler = &proc_dointvec,
+		.strategy = &sysctl_intvec,
+	},
+	{0}
+};
+
+static ctl_table dn_dir_table[] = {
+	{
+		.ctl_name = NET_DECNET, 
+		.procname = "decnet", 
+		.mode = 0555, 
+		.child = dn_table},
+	{0}
+};
+
+static ctl_table dn_root_table[] = {
+	{
+		.ctl_name = CTL_NET, 
+		.procname = "net", 
+		.mode = 0555, 
+		.child = dn_dir_table
+	},
+	{0}
+};
+
+void dn_register_sysctl(void)
+{
+	dn_table_header = register_sysctl_table(dn_root_table, 1);
+}
+
+void dn_unregister_sysctl(void)
+{
+	unregister_sysctl_table(dn_table_header);
+}
+
+#else  /* CONFIG_SYSCTL */
+void dn_unregister_sysctl(void)
+{
+}
+void dn_register_sysctl(void)
+{
+}
+
+#endif