Please consider pulling from:
master.kernel.org:/home/acme/BK/ip-2.5
Now there is only this changeset outstanding there.
Best Regards,
- Arnaldo
PS.: Any feedback from the pppoe maintainer about seq_file patch?
You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.
===================================================================
ChangeSet@1.833, 2002-10-13 04:47:51-02:00, acme@conectiva.com.br
o ipv4: convert /proc/net/arp to seq_file
include/net/arp.h | 1
net/ipv4/arp.c | 155 +--------------------------------------------------
net/ipv4/ip_proc.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 167 insertions(+), 150 deletions(-)
diff -Nru a/include/net/arp.h b/include/net/arp.h
--- a/include/net/arp.h Sun Oct 13 04:52:41 2002
+++ b/include/net/arp.h Sun Oct 13 04:52:41 2002
@@ -18,6 +18,7 @@
extern int arp_bind_neighbour(struct dst_entry *dst);
extern int arp_mc_map(u32 addr, u8 *haddr, struct net_device *dev, int dir);
extern void arp_ifdown(struct net_device *dev);
+extern unsigned arp_state_to_flags(struct neighbour *neigh);
extern struct neigh_ops arp_broken_ops;
diff -Nru a/net/ipv4/arp.c b/net/ipv4/arp.c
--- a/net/ipv4/arp.c Sun Oct 13 04:52:41 2002
+++ b/net/ipv4/arp.c Sun Oct 13 04:52:41 2002
@@ -66,6 +66,8 @@
* Alexey Kuznetsov: new arp state machine;
* now it is in net/core/neighbour.c.
* Krzysztof Halasa: Added Frame Relay ARP support.
+ * Arnaldo C. Melo : move proc stuff to seq_file and
+ * net/ipv4/ip_proc.c
*/
#include <linux/types.h>
@@ -85,7 +87,6 @@
#include <linux/if_arp.h>
#include <linux/trdevice.h>
#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/init.h>
#ifdef CONFIG_SYSCTL
@@ -851,7 +852,7 @@
}
/*
- * User level interface (ioctl, /proc)
+ * User level interface (ioctl)
*/
/*
@@ -918,7 +919,7 @@
return err;
}
-static unsigned arp_state_to_flags(struct neighbour *neigh)
+unsigned arp_state_to_flags(struct neighbour *neigh)
{
unsigned flags = 0;
if (neigh->nud_state&NUD_PERMANENT)
@@ -1066,111 +1067,6 @@
return err;
}
-/*
- * Write the contents of the ARP cache to a PROCfs file.
- */
-#ifndef CONFIG_PROC_FS
-static int arp_get_info(char *buffer, char **start, off_t offset, int length)
-{
- return 0;
-}
-#else
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
-static char *ax2asc2(ax25_address *a, char *buf);
-#endif
-#define HBUFFERLEN 30
-
-static int arp_get_info(char *buffer, char **start, off_t offset, int length)
-{
- char hbuffer[HBUFFERLEN];
- int i,j,k;
- const char hexbuf[] = "0123456789ABCDEF";
- int size = sprintf(buffer, "IP address HW type Flags "
- "HW address Mask Device\n");
- int len = size;
- off_t pos = size;
-
- for (i = 0; i <= NEIGH_HASHMASK; i++) {
- struct neighbour *n;
- read_lock_bh(&arp_tbl.lock);
- for (n = arp_tbl.hash_buckets[i]; n; n = n->next) {
- char tbuf[16];
- struct net_device *dev = n->dev;
- int hatype = dev->type;
-
- /* Do not confuse users "arp -a" with magic entries */
- if (!(n->nud_state & ~NUD_NOARP))
- continue;
-
- read_lock(&n->lock);
- /* Convert hardware address to XX:XX:XX:XX ... form. */
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
- if (hatype == ARPHRD_AX25 || hatype == ARPHRD_NETROM)
- ax2asc2((ax25_address *)n->ha, hbuffer);
- else {
-#endif
- for (k = 0, j = 0; k < HBUFFERLEN - 3 &&
- j < dev->addr_len; j++) {
- hbuffer[k++] = hexbuf[(n->ha[j] >> 4) & 15];
- hbuffer[k++] = hexbuf[n->ha[j] & 15];
- hbuffer[k++] = ':';
- }
- hbuffer[--k] = 0;
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
- }
-#endif
- sprintf(tbuf, "%u.%u.%u.%u",
- NIPQUAD(*(u32*)n->primary_key));
- size = sprintf(buffer + len, "%-16s 0x%-10x0x%-10x%s"
- " * %s\n",
- tbuf, hatype, arp_state_to_flags(n),
- hbuffer, dev->name);
- read_unlock(&n->lock);
-
- len += size;
- pos += size;
-
- if (pos <= offset)
- len = 0;
- if (pos >= offset + length) {
- read_unlock_bh(&arp_tbl.lock);
- goto done;
- }
- }
- read_unlock_bh(&arp_tbl.lock);
- }
-
- for (i = 0; i <= PNEIGH_HASHMASK; i++) {
- struct pneigh_entry *n;
- for (n = arp_tbl.phash_buckets[i]; n; n = n->next) {
- struct net_device *dev = n->dev;
- int hatype = dev ? dev->type : 0;
- char tbuf[16];
- sprintf(tbuf, "%u.%u.%u.%u", NIPQUAD(*(u32*)n->key));
- size = sprintf(buffer + len, "%-16s 0x%-10x0x%-10x%s"
- " * %s\n",
- tbuf, hatype, ATF_PUBL | ATF_PERM,
- "00:00:00:00:00:00",
- dev ? dev->name : "*");
- len += size;
- pos += size;
-
- if (pos <= offset)
- len = 0;
- if (pos >= offset+length)
- goto done;
- }
- }
-done: *start = buffer + len - (pos - offset); /* Start of wanted data */
- len = pos - offset; /* Start slop */
- if (len > length)
- len = length; /* Ending slop */
- if (len < 0)
- len = 0;
- return len;
-}
-#endif
-
/* Note, that it is not on notifier chain.
It is necessary, that this routine was called after route cache will be
flushed.
@@ -1191,54 +1087,13 @@
.data = (void*) 1, /* understand shared skbs */
};
-void __init arp_init (void)
+void __init arp_init(void)
{
neigh_table_init(&arp_tbl);
dev_add_pack(&arp_packet_type);
-
- proc_net_create ("arp", 0, arp_get_info);
-
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(NULL, &arp_tbl.parms, NET_IPV4,
NET_IPV4_NEIGH, "ipv4");
#endif
}
-
-
-#ifdef CONFIG_PROC_FS
-#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
-
-/*
- * ax25 -> ASCII conversion
- */
-char *ax2asc2(ax25_address *a, char *buf)
-{
- char c, *s;
- int n;
-
- for (n = 0, s = buf; n < 6; n++) {
- c = (a->ax25_call[n] >> 1) & 0x7F;
-
- if (c != ' ') *s++ = c;
- }
-
- *s++ = '-';
-
- if ((n = ((a->ax25_call[6] >> 1) & 0x0F)) > 9) {
- *s++ = '1';
- n -= 10;
- }
-
- *s++ = n + '0';
- *s++ = '\0';
-
- if (*buf == '\0' || *buf == '-')
- return "*";
-
- return buf;
-
-}
-
-#endif
-#endif
diff -Nru a/net/ipv4/ip_proc.c b/net/ipv4/ip_proc.c
--- a/net/ipv4/ip_proc.c Sun Oct 13 04:52:41 2002
+++ b/net/ipv4/ip_proc.c Sun Oct 13 04:52:41 2002
@@ -15,6 +15,10 @@
#include <linux/config.h>
#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <net/neighbour.h>
+#include <net/arp.h>
+#include <linux/seq_file.h>
#include <linux/proc_fs.h>
extern int raw_get_info(char *, char **, off_t, int);
@@ -25,8 +29,158 @@
extern int udp_get_info(char *, char **, off_t, int);
#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_AX25
+/*
+ * ax25 -> ASCII conversion
+ */
+char *ax2asc2(ax25_address *a, char *buf)
+{
+ char c, *s;
+ int n;
+
+ for (n = 0, s = buf; n < 6; n++) {
+ c = (a->ax25_call[n] >> 1) & 0x7F;
+
+ if (c != ' ') *s++ = c;
+ }
+
+ *s++ = '-';
+
+ if ((n = ((a->ax25_call[6] >> 1) & 0x0F)) > 9) {
+ *s++ = '1';
+ n -= 10;
+ }
+
+ *s++ = n + '0';
+ *s++ = '\0';
+
+ if (*buf == '\0' || *buf == '-')
+ return "*";
+
+ return buf;
+
+}
+#endif /* CONFIG_AX25 */
+
+static void *arp_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ return (void *)(unsigned long)++*pos;
+}
+
+static void *arp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ return (void *)(unsigned long)((++*pos) >=
+ (NEIGH_HASHMASK +
+ PNEIGH_HASHMASK - 1) ? 0 : *pos);
+}
+
+static void arp_seq_stop(struct seq_file *seq, void *v)
+{
+}
+
+#define HBUFFERLEN 30
+
+static __inline__ void arp_format_neigh_table(struct seq_file *seq, int entry)
+{
+ char hbuffer[HBUFFERLEN];
+ const char hexbuf[] = "0123456789ABCDEF";
+ struct neighbour *n;
+ int k, j;
+
+ read_lock_bh(&arp_tbl.lock);
+ for (n = arp_tbl.hash_buckets[entry]; n; n = n->next) {
+ char tbuf[16];
+ struct net_device *dev = n->dev;
+ int hatype = dev->type;
+
+ /* Do not confuse users "arp -a" with magic entries */
+ if (!(n->nud_state & ~NUD_NOARP))
+ continue;
+
+ read_lock(&n->lock);
+ /* Convert hardware address to XX:XX:XX:XX ... form. */
+#ifdef CONFIG_AX25
+ if (hatype == ARPHRD_AX25 || hatype == ARPHRD_NETROM)
+ ax2asc2((ax25_address *)n->ha, hbuffer);
+ else {
+#endif
+ for (k = 0, j = 0; k < HBUFFERLEN - 3 &&
+ j < dev->addr_len; j++) {
+ hbuffer[k++] = hexbuf[(n->ha[j] >> 4) & 15];
+ hbuffer[k++] = hexbuf[n->ha[j] & 15];
+ hbuffer[k++] = ':';
+ }
+ hbuffer[--k] = 0;
+#ifdef CONFIG_AX25
+ }
+#endif
+ sprintf(tbuf, "%u.%u.%u.%u",
+ NIPQUAD(*(u32*)n->primary_key));
+ seq_printf(seq, "%-16s 0x%-10x0x%-10x%s"
+ " * %s\n",
+ tbuf, hatype, arp_state_to_flags(n),
+ hbuffer, dev->name);
+ read_unlock(&n->lock);
+ }
+ read_unlock_bh(&arp_tbl.lock);
+}
+
+static __inline__ void arp_format_pneigh_table(struct seq_file *seq, int entry)
+{
+ struct pneigh_entry *n;
+
+ for (n = arp_tbl.phash_buckets[entry]; n; n = n->next) {
+ struct net_device *dev = n->dev;
+ int hatype = dev ? dev->type : 0;
+ char tbuf[16];
+
+ sprintf(tbuf, "%u.%u.%u.%u", NIPQUAD(*(u32*)n->key));
+ seq_printf(seq, "%-16s 0x%-10x0x%-10x%s"
+ " * %s\n",
+ tbuf, hatype, ATF_PUBL | ATF_PERM,
+ "00:00:00:00:00:00",
+ dev ? dev->name : "*");
+ }
+}
+
+static int arp_seq_show(struct seq_file *seq, void *v)
+{
+ unsigned long l = (unsigned long)v - 1;
+
+ if (!l)
+ seq_puts(seq, "IP address HW type Flags "
+ "HW address Mask Device\n");
+
+ if (l <= NEIGH_HASHMASK)
+ arp_format_neigh_table(seq, l);
+ else
+ arp_format_pneigh_table(seq, l - NEIGH_HASHMASK);
+
+ return 0;
+}
+
+struct seq_operations arp_seq_ops = {
+ .start = arp_seq_start,
+ .next = arp_seq_next,
+ .stop = arp_seq_stop,
+ .show = arp_seq_show,
+};
+
+static int arp_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &arp_seq_ops);
+}
+
+static struct file_operations arp_seq_fops = {
+ .open = arp_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
int __init ipv4_proc_init(void)
{
+ struct proc_dir_entry *p;
int rc = 0;
if (!proc_net_create("raw", 0, raw_get_info))
@@ -46,8 +200,15 @@
if (!proc_net_create("udp", 0, udp_get_info))
goto out_udp;
+
+ p = create_proc_entry("arp", S_IRUGO, proc_net);
+ if (!p)
+ goto out_arp;
+ p->proc_fops = &arp_seq_fops;
out:
return rc;
+out_arp:
+ proc_net_remove("udp");
out_udp:
proc_net_remove("tcp");
out_tcp:
===================================================================
This BitKeeper patch contains the following changesets:
1.833
## Wrapped with gzip_uu ##
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end
-
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