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[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [net/] [decnet/] [sysctl_net_decnet.c] - Blame information for rev 17

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/*
 * 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
 * Steve Whitehouse - Memory buffer settings, like the tcp ones
 *
 */
#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;
 
/* Reasonable defaults, I hope, based on tcp's defaults */
int sysctl_decnet_mem[3] = { 768 << 3, 1024 << 3, 1536 << 3 };
int sysctl_decnet_wmem[3] = { 4 * 1024, 16 * 1024, 128 * 1024 };
int sysctl_decnet_rmem[3] = { 4 * 1024, 87380, 87380 * 2 };
 
#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(__le16 *addr, char *str)
{
        __u16 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)
{
        size_t len;
        __le16 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, (__le16 __user *)oldval))
                                return -EFAULT;
                }
        }
        if (newval && newlen) {
                if (newlen != sizeof(unsigned short))
                        return -EINVAL;
                if (get_user(addr, (__le16 __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;
        __le16 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)
{
        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(&init_net, 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(&init_net, 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_MEM,
                .procname = "decnet_mem",
                .data = &sysctl_decnet_mem,
                .maxlen = sizeof(sysctl_decnet_mem),
                .mode = 0644,
                .proc_handler = &proc_dointvec,
                .strategy = &sysctl_intvec,
        },
        {
                .ctl_name = NET_DECNET_RMEM,
                .procname = "decnet_rmem",
                .data = &sysctl_decnet_rmem,
                .maxlen = sizeof(sysctl_decnet_rmem),
                .mode = 0644,
                .proc_handler = &proc_dointvec,
                .strategy = &sysctl_intvec,
        },
        {
                .ctl_name = NET_DECNET_WMEM,
                .procname = "decnet_wmem",
                .data = &sysctl_decnet_wmem,
                .maxlen = sizeof(sysctl_decnet_wmem),
                .mode = 0644,
                .proc_handler = &proc_dointvec,
                .strategy = &sysctl_intvec,
        },
        {
                .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);
}
 
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

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[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [net/] [decnet/] [sysctl_net_decnet.c] - Blame information for rev 17

Line No.	Rev	Author	Line
1	3	xianfeng	`/*`
2			`* DECnet An implementation of the DECnet protocol suite for the LINUX`
3			`* operating system. DECnet is implemented using the BSD Socket`
4			`* interface as the means of communication with the user level.`
5			`*`
6			`* DECnet sysctl support functions`
7			`*`
8			`* Author: Steve Whitehouse <SteveW@ACM.org>`
9			`*`
10			`*`
11			`* Changes:`
12			`* Steve Whitehouse - C99 changes and default device handling`
13			`* Steve Whitehouse - Memory buffer settings, like the tcp ones`
14			`*`
15			`*/`
16			`#include <linux/mm.h>`
17			`#include <linux/sysctl.h>`
18			`#include <linux/fs.h>`
19			`#include <linux/netdevice.h>`
20			`#include <linux/string.h>`
21			`#include <net/neighbour.h>`
22			`#include <net/dst.h>`
23			`#include <net/flow.h>`
24
25			`#include <asm/uaccess.h>`
26
27			`#include <net/dn.h>`
28			`#include <net/dn_dev.h>`
29			`#include <net/dn_route.h>`
30
31
32			`int decnet_debug_level;`
33			`int decnet_time_wait = 30;`
34			`int decnet_dn_count = 1;`
35			`int decnet_di_count = 3;`
36			`int decnet_dr_count = 3;`
37			`int decnet_log_martians = 1;`
38			`int decnet_no_fc_max_cwnd = NSP_MIN_WINDOW;`
39
40			`/* Reasonable defaults, I hope, based on tcp's defaults */`
41			`int sysctl_decnet_mem[3] = { 768 << 3, 1024 << 3, 1536 << 3 };`
42			`int sysctl_decnet_wmem[3] = { 4 * 1024, 16 * 1024, 128 * 1024 };`
43			`int sysctl_decnet_rmem[3] = { 4 * 1024, 87380, 87380 * 2 };`
44
45			`#ifdef CONFIG_SYSCTL`
46			`extern int decnet_dst_gc_interval;`
47			`static int min_decnet_time_wait[] = { 5 };`
48			`static int max_decnet_time_wait[] = { 600 };`
49			`static int min_state_count[] = { 1 };`
50			`static int max_state_count[] = { NSP_MAXRXTSHIFT };`
51			`static int min_decnet_dst_gc_interval[] = { 1 };`
52			`static int max_decnet_dst_gc_interval[] = { 60 };`
53			`static int min_decnet_no_fc_max_cwnd[] = { NSP_MIN_WINDOW };`
54			`static int max_decnet_no_fc_max_cwnd[] = { NSP_MAX_WINDOW };`
55			`static char node_name[7] = "???";`
56
57			`static struct ctl_table_header *dn_table_header = NULL;`
58
59			`/*`
60			`* ctype.h :-)`
61			`*/`
62			`#define ISNUM(x) (((x) >= '0') && ((x) <= '9'))`
63			`#define ISLOWER(x) (((x) >= 'a') && ((x) <= 'z'))`
64			`#define ISUPPER(x) (((x) >= 'A') && ((x) <= 'Z'))`
65			`#define ISALPHA(x) (ISLOWER(x) \|\| ISUPPER(x))`
66			`#define INVALID_END_CHAR(x) (ISNUM(x) \|\| ISALPHA(x))`
67
68			`static void strip_it(char *str)`
69			`{`
70			`for(;;) {`
71			`switch(*str) {`
72			`case ' ':`
73			`case '\n':`
74			`case '\r':`
75			`case ':':`
76			`*str = 0;`
77			`case 0:`
78			`return;`
79			`}`
80			`str++;`
81			`}`
82			`}`
83
84			`/*`
85			`* Simple routine to parse an ascii DECnet address`
86			`* into a network order address.`
87			`*/`
88			`static int parse_addr(__le16 addr, char str)`
89			`{`
90			`__u16 area, node;`
91
92			`while(str && !ISNUM(str)) str++;`
93
94			`if (*str == 0)`
95			`return -1;`
96
97			`area = (*str++ - '0');`
98			`if (ISNUM(*str)) {`
99			`area *= 10;`
100			`area += (*str++ - '0');`
101			`}`
102
103			`if (*str++ != '.')`
104			`return -1;`
105
106			`if (!ISNUM(*str))`
107			`return -1;`
108
109			`node = *str++ - '0';`
110			`if (ISNUM(*str)) {`
111			`node *= 10;`
112			`node += (*str++ - '0');`
113			`}`
114			`if (ISNUM(*str)) {`
115			`node *= 10;`
116			`node += (*str++ - '0');`
117			`}`
118			`if (ISNUM(*str)) {`
119			`node *= 10;`
120			`node += (*str++ - '0');`
121			`}`
122
123			`if ((node > 1023) \|\| (area > 63))`
124			`return -1;`
125
126			`if (INVALID_END_CHAR(*str))`
127			`return -1;`
128
129			`*addr = dn_htons((area << 10) \| node);`
130
131			`return 0;`
132			`}`
133
134
135			`static int dn_node_address_strategy(ctl_table table, int __user name, int nlen,`
136			`void __user oldval, size_t __user oldlenp,`
137			`void __user *newval, size_t newlen)`
138			`{`
139			`size_t len;`
140			`__le16 addr;`
141
142			`if (oldval && oldlenp) {`
143			`if (get_user(len, oldlenp))`
144			`return -EFAULT;`
145			`if (len) {`
146			`if (len != sizeof(unsigned short))`
147			`return -EINVAL;`
148			`if (put_user(decnet_address, (__le16 __user *)oldval))`
149			`return -EFAULT;`
150			`}`
151			`}`
152			`if (newval && newlen) {`
153			`if (newlen != sizeof(unsigned short))`
154			`return -EINVAL;`
155			`if (get_user(addr, (__le16 __user *)newval))`
156			`return -EFAULT;`
157
158			`dn_dev_devices_off();`
159
160			`decnet_address = addr;`
161
162			`dn_dev_devices_on();`
163			`}`
164			`return 0;`
165			`}`
166
167			`static int dn_node_address_handler(ctl_table *table, int write,`
168			`struct file *filp,`
169			`void __user *buffer,`
170			`size_t lenp, loff_t ppos)`
171			`{`
172			`char addr[DN_ASCBUF_LEN];`
173			`size_t len;`
174			`__le16 dnaddr;`
175
176			`if (!lenp \|\| (ppos && !write)) {`
177			`*lenp = 0;`
178			`return 0;`
179			`}`
180
181			`if (write) {`
182			`int len = (lenp < DN_ASCBUF_LEN) ? lenp : (DN_ASCBUF_LEN-1);`
183
184			`if (copy_from_user(addr, buffer, len))`
185			`return -EFAULT;`
186
187			`addr[len] = 0;`
188			`strip_it(addr);`
189
190			`if (parse_addr(&dnaddr, addr))`
191			`return -EINVAL;`
192
193			`dn_dev_devices_off();`
194
195			`decnet_address = dnaddr;`
196
197			`dn_dev_devices_on();`
198
199			`*ppos += len;`
200
201			`return 0;`
202			`}`
203
204			`dn_addr2asc(dn_ntohs(decnet_address), addr);`
205			`len = strlen(addr);`
206			`addr[len++] = '\n';`
207
208			`if (len > lenp) len = lenp;`
209
210			`if (copy_to_user(buffer, addr, len))`
211			`return -EFAULT;`
212
213			`*lenp = len;`
214			`*ppos += len;`
215
216			`return 0;`
217			`}`
218
219
220			`static int dn_def_dev_strategy(ctl_table table, int __user name, int nlen,`
221			`void __user oldval, size_t __user oldlenp,`
222			`void __user *newval, size_t newlen)`
223			`{`
224			`size_t len;`
225			`struct net_device *dev;`
226			`char devname[17];`
227			`size_t namel;`
228			`int rv = 0;`
229
230			`devname[0] = 0;`
231
232			`if (oldval && oldlenp) {`
233			`if (get_user(len, oldlenp))`
234			`return -EFAULT;`
235			`if (len) {`
236			`dev = dn_dev_get_default();`
237			`if (dev) {`
238			`strcpy(devname, dev->name);`
239			`dev_put(dev);`
240			`}`
241
242			`namel = strlen(devname) + 1;`
243			`if (len > namel) len = namel;`
244
245			`if (copy_to_user(oldval, devname, len))`
246			`return -EFAULT;`
247
248			`if (put_user(len, oldlenp))`
249			`return -EFAULT;`
250			`}`
251			`}`
252
253			`if (newval && newlen) {`
254			`if (newlen > 16)`
255			`return -E2BIG;`
256
257			`if (copy_from_user(devname, newval, newlen))`
258			`return -EFAULT;`
259
260			`devname[newlen] = 0;`
261
262			`dev = dev_get_by_name(&init_net, devname);`
263			`if (dev == NULL)`
264			`return -ENODEV;`
265
266			`rv = -ENODEV;`
267			`if (dev->dn_ptr != NULL) {`
268			`rv = dn_dev_set_default(dev, 1);`
269			`if (rv)`
270			`dev_put(dev);`
271			`}`
272			`}`
273
274			`return rv;`
275			`}`
276
277
278			`static int dn_def_dev_handler(ctl_table *table, int write,`
279			`struct file * filp,`
280			`void __user *buffer,`
281			`size_t lenp, loff_t ppos)`
282			`{`
283			`size_t len;`
284			`struct net_device *dev;`
285			`char devname[17];`
286
287			`if (!lenp \|\| (ppos && !write)) {`
288			`*lenp = 0;`
289			`return 0;`
290			`}`
291
292			`if (write) {`
293			`if (*lenp > 16)`
294			`return -E2BIG;`
295
296			`if (copy_from_user(devname, buffer, *lenp))`
297			`return -EFAULT;`
298
299			`devname[*lenp] = 0;`
300			`strip_it(devname);`
301
302			`dev = dev_get_by_name(&init_net, devname);`
303			`if (dev == NULL)`
304			`return -ENODEV;`
305
306			`if (dev->dn_ptr == NULL) {`
307			`dev_put(dev);`
308			`return -ENODEV;`
309			`}`
310
311			`if (dn_dev_set_default(dev, 1)) {`
312			`dev_put(dev);`
313			`return -ENODEV;`
314			`}`
315			`ppos += lenp;`
316
317			`return 0;`
318			`}`
319
320			`dev = dn_dev_get_default();`
321			`if (dev == NULL) {`
322			`*lenp = 0;`
323			`return 0;`
324			`}`
325
326			`strcpy(devname, dev->name);`
327			`dev_put(dev);`
328			`len = strlen(devname);`
329			`devname[len++] = '\n';`
330
331			`if (len > lenp) len = lenp;`
332
333			`if (copy_to_user(buffer, devname, len))`
334			`return -EFAULT;`
335
336			`*lenp = len;`
337			`*ppos += len;`
338
339			`return 0;`
340			`}`
341
342			`static ctl_table dn_table[] = {`
343			`{`
344			`.ctl_name = NET_DECNET_NODE_ADDRESS,`
345			`.procname = "node_address",`
346			`.maxlen = 7,`
347			`.mode = 0644,`
348			`.proc_handler = dn_node_address_handler,`
349			`.strategy = dn_node_address_strategy,`
350			`},`
351			`{`
352			`.ctl_name = NET_DECNET_NODE_NAME,`
353			`.procname = "node_name",`
354			`.data = node_name,`
355			`.maxlen = 7,`
356			`.mode = 0644,`
357			`.proc_handler = &proc_dostring,`
358			`.strategy = &sysctl_string,`
359			`},`
360			`{`
361			`.ctl_name = NET_DECNET_DEFAULT_DEVICE,`
362			`.procname = "default_device",`
363			`.maxlen = 16,`
364			`.mode = 0644,`
365			`.proc_handler = dn_def_dev_handler,`
366			`.strategy = dn_def_dev_strategy,`
367			`},`
368			`{`
369			`.ctl_name = NET_DECNET_TIME_WAIT,`
370			`.procname = "time_wait",`
371			`.data = &decnet_time_wait,`
372			`.maxlen = sizeof(int),`
373			`.mode = 0644,`
374			`.proc_handler = &proc_dointvec_minmax,`
375			`.strategy = &sysctl_intvec,`
376			`.extra1 = &min_decnet_time_wait,`
377			`.extra2 = &max_decnet_time_wait`
378			`},`
379			`{`
380			`.ctl_name = NET_DECNET_DN_COUNT,`
381			`.procname = "dn_count",`
382			`.data = &decnet_dn_count,`
383			`.maxlen = sizeof(int),`
384			`.mode = 0644,`
385			`.proc_handler = &proc_dointvec_minmax,`
386			`.strategy = &sysctl_intvec,`
387			`.extra1 = &min_state_count,`
388			`.extra2 = &max_state_count`
389			`},`
390			`{`
391			`.ctl_name = NET_DECNET_DI_COUNT,`
392			`.procname = "di_count",`
393			`.data = &decnet_di_count,`
394			`.maxlen = sizeof(int),`
395			`.mode = 0644,`
396			`.proc_handler = &proc_dointvec_minmax,`
397			`.strategy = &sysctl_intvec,`
398			`.extra1 = &min_state_count,`
399			`.extra2 = &max_state_count`
400			`},`
401			`{`
402			`.ctl_name = NET_DECNET_DR_COUNT,`
403			`.procname = "dr_count",`
404			`.data = &decnet_dr_count,`
405			`.maxlen = sizeof(int),`
406			`.mode = 0644,`
407			`.proc_handler = &proc_dointvec_minmax,`
408			`.strategy = &sysctl_intvec,`
409			`.extra1 = &min_state_count,`
410			`.extra2 = &max_state_count`
411			`},`
412			`{`
413			`.ctl_name = NET_DECNET_DST_GC_INTERVAL,`
414			`.procname = "dst_gc_interval",`
415			`.data = &decnet_dst_gc_interval,`
416			`.maxlen = sizeof(int),`
417			`.mode = 0644,`
418			`.proc_handler = &proc_dointvec_minmax,`
419			`.strategy = &sysctl_intvec,`
420			`.extra1 = &min_decnet_dst_gc_interval,`
421			`.extra2 = &max_decnet_dst_gc_interval`
422			`},`
423			`{`
424			`.ctl_name = NET_DECNET_NO_FC_MAX_CWND,`
425			`.procname = "no_fc_max_cwnd",`
426			`.data = &decnet_no_fc_max_cwnd,`
427			`.maxlen = sizeof(int),`
428			`.mode = 0644,`
429			`.proc_handler = &proc_dointvec_minmax,`
430			`.strategy = &sysctl_intvec,`
431			`.extra1 = &min_decnet_no_fc_max_cwnd,`
432			`.extra2 = &max_decnet_no_fc_max_cwnd`
433			`},`
434			`{`
435			`.ctl_name = NET_DECNET_MEM,`
436			`.procname = "decnet_mem",`
437			`.data = &sysctl_decnet_mem,`
438			`.maxlen = sizeof(sysctl_decnet_mem),`
439			`.mode = 0644,`
440			`.proc_handler = &proc_dointvec,`
441			`.strategy = &sysctl_intvec,`
442			`},`
443			`{`
444			`.ctl_name = NET_DECNET_RMEM,`
445			`.procname = "decnet_rmem",`
446			`.data = &sysctl_decnet_rmem,`
447			`.maxlen = sizeof(sysctl_decnet_rmem),`
448			`.mode = 0644,`
449			`.proc_handler = &proc_dointvec,`
450			`.strategy = &sysctl_intvec,`
451			`},`
452			`{`
453			`.ctl_name = NET_DECNET_WMEM,`
454			`.procname = "decnet_wmem",`
455			`.data = &sysctl_decnet_wmem,`
456			`.maxlen = sizeof(sysctl_decnet_wmem),`
457			`.mode = 0644,`
458			`.proc_handler = &proc_dointvec,`
459			`.strategy = &sysctl_intvec,`
460			`},`
461			`{`
462			`.ctl_name = NET_DECNET_DEBUG_LEVEL,`
463			`.procname = "debug",`
464			`.data = &decnet_debug_level,`
465			`.maxlen = sizeof(int),`
466			`.mode = 0644,`
467			`.proc_handler = &proc_dointvec,`
468			`.strategy = &sysctl_intvec,`
469			`},`
470			`{0}`
471			`};`
472
473			`static ctl_table dn_dir_table[] = {`
474			`{`
475			`.ctl_name = NET_DECNET,`
476			`.procname = "decnet",`
477			`.mode = 0555,`
478			`.child = dn_table},`
479			`{0}`
480			`};`
481
482			`static ctl_table dn_root_table[] = {`
483			`{`
484			`.ctl_name = CTL_NET,`
485			`.procname = "net",`
486			`.mode = 0555,`
487			`.child = dn_dir_table`
488			`},`
489			`{0}`
490			`};`
491
492			`void dn_register_sysctl(void)`
493			`{`
494			`dn_table_header = register_sysctl_table(dn_root_table);`
495			`}`
496
497			`void dn_unregister_sysctl(void)`
498			`{`
499			`unregister_sysctl_table(dn_table_header);`
500			`}`
501
502			`#else /* CONFIG_SYSCTL */`
503			`void dn_unregister_sysctl(void)`
504			`{`
505			`}`
506			`void dn_register_sysctl(void)`
507			`{`
508			`}`
509
510			`#endif`