From: Stephen Hemminger (btnhnsgt.gkvssl@tecosim.com)
Date: Thu Aug 14 2003 - 01:46:35 EEST
Convert netrom /proc interface to seq_file.
diff -Nru a/include/net/netrom.h b/include/net/netrom.h
--- a/include/net/netrom.h Wed Aug 13 13:54:19 2003
+++ b/include/net/netrom.h Wed Aug 13 13:54:19 2003
@@ -209,8 +209,8 @@
extern int nr_rt_ioctl(unsigned int, void *);
extern void nr_link_failed(ax25_cb *, int);
extern int nr_route_frame(struct sk_buff *, ax25_cb *);
-extern int nr_nodes_get_info(char *, char **, off_t, int);
-extern int nr_neigh_get_info(char *, char **, off_t, int);
+extern struct file_operations nr_nodes_fops;
+extern struct file_operations nr_neigh_fops;
extern void nr_rt_free(void);
/* nr_subr.c */
diff -Nru a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
--- a/net/netrom/af_netrom.c Wed Aug 13 13:54:19 2003
+++ b/net/netrom/af_netrom.c Wed Aug 13 13:54:19 2003
@@ -36,6 +36,7 @@
#include <linux/notifier.h>
#include <net/netrom.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <net/ip.h>
#include <net/tcp.h>
#include <net/arp.h>
@@ -1234,22 +1235,54 @@
return 0;
}
-static int nr_get_info(char *buffer, char **start, off_t offset, int length)
+#ifdef CONFIG_PROC_FS
+
+/* Marker for header entry */
+#define NETROM_PROC_START ((void *)1)
+static void *nr_info_start(struct seq_file *seq, loff_t *pos)
{
struct sock *s;
struct hlist_node *node;
+ int i = 1;
+
+ spin_lock_bh(&nr_list_lock);
+ if (*pos == 0)
+ return NETROM_PROC_START;
+
+ sk_for_each(s, node, &nr_list) {
+ if (i == *pos)
+ return s;
+ ++i;
+ }
+ return NULL;
+}
+
+static void *nr_info_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ ++*pos;
+
+ return (v == NETROM_PROC_START) ? sk_head(&nr_list)
+ : sk_next((struct sock *)v);
+}
+
+static void nr_info_stop(struct seq_file *seq, void *v)
+{
+ spin_unlock_bh(&nr_list_lock);
+}
+
+static int nr_info_show(struct seq_file *seq, void *v)
+{
+ struct sock *s = v;
struct net_device *dev;
+ nr_cb *nr;
const char *devname;
- int len = 0;
- off_t pos = 0;
- off_t begin = 0;
- spin_lock_bh(&nr_list_lock);
+ if (v == NETROM_PROC_START)
+ seq_puts(seq,
+"user_addr dest_node src_node dev my your st vs vr va t1 t2 t4 idle n2 wnd Snd-Q Rcv-Q inode\n");
- len += sprintf(buffer, "user_addr dest_node src_node dev my your st vs vr va t1 t2 t4 idle n2 wnd Snd-Q Rcv-Q inode\n");
+ else {
- sk_for_each(s, node, &nr_list) {
- nr_cb *nr;
bh_lock_sock(s);
nr = nr_sk(s);
@@ -1258,11 +1291,10 @@
else
devname = dev->name;
- len += sprintf(buffer + len, "%-9s ",
- ax2asc(&nr->user_addr));
- len += sprintf(buffer + len, "%-9s ",
- ax2asc(&nr->dest_addr));
- len += sprintf(buffer + len, "%-9s %-3s %02X/%02X %02X/%02X %2d %3d %3d %3d %3lu/%03lu %2lu/%02lu %3lu/%03lu %3lu/%03lu %2d/%02d %3d %5d %5d %ld\n",
+ seq_printf(seq, "%-9s ", ax2asc(&nr->user_addr));
+ seq_printf(seq, "%-9s ", ax2asc(&nr->dest_addr));
+ seq_printf(seq,
+"%-9s %-3s %02X/%02X %02X/%02X %2d %3d %3d %3d %3lu/%03lu %2lu/%02lu %3lu/%03lu %3lu/%03lu %2d/%02d %3d %5d %5d %ld\n",
ax2asc(&nr->source_addr),
devname,
nr->my_index,
@@ -1288,27 +1320,31 @@
atomic_read(&s->sk_rmem_alloc),
s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
- pos = begin + len;
-
- if (pos < offset) {
- len = 0;
- begin = pos;
- }
bh_unlock_sock(s);
- if (pos > offset + length)
- break;
}
+ return 0;
+}
- spin_unlock_bh(&nr_list_lock);
-
- *start = buffer + (offset - begin);
- len -= (offset - begin);
-
- if (len > length)
- len = length;
-
- return len;
+static struct seq_operations nr_info_seqops = {
+ .start = nr_info_start,
+ .next = nr_info_next,
+ .stop = nr_info_stop,
+ .show = nr_info_show,
+};
+
+static int nr_info_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &nr_info_seqops);
}
+
+static struct file_operations nr_info_fops = {
+ .owner = THIS_MODULE,
+ .open = nr_info_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+#endif /* CONFIG_PROC_FS */
static struct net_proto_family nr_family_ops = {
.family = PF_NETROM,
@@ -1399,10 +1435,11 @@
nr_loopback_init();
- proc_net_create("nr", 0, nr_get_info);
- proc_net_create("nr_neigh", 0, nr_neigh_get_info);
- proc_net_create("nr_nodes", 0, nr_nodes_get_info);
+ proc_net_fops_create("nr", S_IRUGO, &nr_info_fops);
+ proc_net_fops_create("nr_neigh", S_IRUGO, &nr_neigh_fops);
+ proc_net_fops_create("nr_nodes", S_IRUGO, &nr_nodes_fops);
return 0;
+
fail:
while (--i >= 0)
unregister_netdev(dev_nr[i]);
diff -Nru a/net/netrom/nr_route.c b/net/netrom/nr_route.c
--- a/net/netrom/nr_route.c Wed Aug 13 13:54:19 2003
+++ b/net/netrom/nr_route.c Wed Aug 13 13:54:19 2003
@@ -36,6 +36,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <net/netrom.h>
+#include <linux/seq_file.h>
static unsigned int nr_neigh_no = 1;
@@ -839,70 +840,138 @@
return ret;
}
-int nr_nodes_get_info(char *buffer, char **start, off_t offset, int length)
+#ifdef CONFIG_PROC_FS
+#define NETROM_PROC_START ((void *) 1)
+
+static void *nr_node_start(struct seq_file *seq, loff_t *pos)
{
struct nr_node *nr_node;
struct hlist_node *node;
- int len = 0;
- off_t pos = 0;
- off_t begin = 0;
- int i;
-
- spin_lock_bh(&nr_node_list_lock);
- len += sprintf(buffer, "callsign mnemonic w n qual obs neigh qual obs neigh qual obs neigh\n");
+ int i = 1;
+
+ spin_lock_bh(&nr_node_list_lock);
+ if (*pos == 0)
+ return NETROM_PROC_START;
nr_node_for_each(nr_node, node, &nr_node_list) {
+ if (i == *pos)
+ return nr_node;
+ ++i;
+ }
+
+ return NULL;
+}
+
+static void *nr_node_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct hlist_node *node;
+ ++*pos;
+
+ node = (v == NETROM_PROC_START)
+ ? nr_node_list.first
+ : ((struct nr_node *)v)->node_node.next;
+
+ return hlist_entry(node, struct nr_node, node_node);
+}
+
+static void nr_node_stop(struct seq_file *seq, void *v)
+{
+ spin_unlock_bh(&nr_node_list_lock);
+}
+
+static int nr_node_show(struct seq_file *seq, void *v)
+{
+ int i;
+
+ if (v == NETROM_PROC_START)
+ seq_puts(seq,
+ "callsign mnemonic w n qual obs neigh qual obs neigh qual obs neigh\n");
+ else {
+ struct nr_node *nr_node = v;
nr_node_lock(nr_node);
- len += sprintf(buffer + len, "%-9s %-7s %d %d",
+ seq_printf(seq, "%-9s %-7s %d %d",
ax2asc(&nr_node->callsign),
(nr_node->mnemonic[0] == '\0') ? "*" : nr_node->mnemonic,
nr_node->which + 1,
nr_node->count);
for (i = 0; i < nr_node->count; i++) {
- len += sprintf(buffer + len, " %3d %d %05d",
+ seq_printf(seq, " %3d %d %05d",
nr_node->routes[i].quality,
nr_node->routes[i].obs_count,
nr_node->routes[i].neighbour->number);
}
nr_node_unlock(nr_node);
- len += sprintf(buffer + len, "\n");
+ seq_puts(seq, "\n");
+ }
+ return 0;
+}
- pos = begin + len;
+static struct seq_operations nr_node_seqops = {
+ .start = nr_node_start,
+ .next = nr_node_next,
+ .stop = nr_node_stop,
+ .show = nr_node_show,
+};
+
+static int nr_node_info_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &nr_node_seqops);
+}
+
+struct file_operations nr_nodes_fops = {
+ .owner = THIS_MODULE,
+ .open = nr_node_info_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
- if (pos < offset) {
- len = 0;
- begin = pos;
- }
+static void *nr_neigh_start(struct seq_file *seq, loff_t *pos)
+{
+ struct nr_neigh *nr_neigh;
+ struct hlist_node *node;
+ int i = 1;
- if (pos > offset + length)
- break;
+ spin_lock_bh(&nr_neigh_list_lock);
+ if (*pos == 0)
+ return NETROM_PROC_START;
+
+ nr_neigh_for_each(nr_neigh, node, &nr_neigh_list) {
+ if (i == *pos)
+ return nr_neigh;
}
- spin_unlock_bh(&nr_node_list_lock);
+ return NULL;
+}
- *start = buffer + (offset - begin);
- len -= (offset - begin);
+static void *nr_neigh_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct hlist_node *node;
+ ++*pos;
+
+ node = (v == NETROM_PROC_START)
+ ? nr_neigh_list.first
+ : ((struct nr_neigh *)v)->neigh_node.next;
- if (len > length) len = length;
+ return hlist_entry(node, struct nr_neigh, neigh_node);
+}
- return len;
+static void nr_neigh_stop(struct seq_file *seq, void *v)
+{
+ spin_unlock_bh(&nr_neigh_list_lock);
}
-int nr_neigh_get_info(char *buffer, char **start, off_t offset, int length)
+static int nr_neigh_show(struct seq_file *seq, void *v)
{
- struct nr_neigh *nr_neigh;
- struct hlist_node *node;
- int len = 0;
- off_t pos = 0;
- off_t begin = 0;
int i;
- spin_lock_bh(&nr_neigh_list_lock);
- len += sprintf(buffer, "addr callsign dev qual lock count failed digipeaters\n");
+ if (v == NETROM_PROC_START)
+ seq_puts(seq, "addr callsign dev qual lock count failed digipeaters\n");
+ else {
+ struct nr_neigh *nr_neigh = v;
- nr_neigh_for_each(nr_neigh, node, &nr_neigh_list) {
- len += sprintf(buffer + len, "%05d %-9s %-4s %3d %d %3d %3d",
+ seq_printf(seq, "%05d %-9s %-4s %3d %d %3d %3d",
nr_neigh->number,
ax2asc(&nr_neigh->callsign),
nr_neigh->dev ? nr_neigh->dev->name : "???",
@@ -913,31 +982,36 @@
if (nr_neigh->digipeat != NULL) {
for (i = 0; i < nr_neigh->digipeat->ndigi; i++)
- len += sprintf(buffer + len, " %s", ax2asc(&nr_neigh->digipeat->calls[i]));
+ seq_printf(seq, " %s",
+ ax2asc(&nr_neigh->digipeat->calls[i]));
}
- len += sprintf(buffer + len, "\n");
-
- pos = begin + len;
-
- if (pos < offset) {
- len = 0;
- begin = pos;
- }
-
- if (pos > offset + length)
- break;
+ seq_puts(seq, "\n");
}
+ return 0;
+}
- spin_unlock_bh(&nr_neigh_list_lock);
-
- *start = buffer + (offset - begin);
- len -= (offset - begin);
-
- if (len > length) len = length;
+static struct seq_operations nr_neigh_seqops = {
+ .start = nr_neigh_start,
+ .next = nr_neigh_next,
+ .stop = nr_neigh_stop,
+ .show = nr_neigh_show,
+};
+
+static int nr_neigh_info_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &nr_neigh_seqops);
+}
+
+struct file_operations nr_neigh_fops = {
+ .owner = THIS_MODULE,
+ .open = nr_neigh_info_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
- return len;
-}
+#endif
/*
* Free all memory associated with the nodes and routes lists.
-
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This archive was generated by hypermail 2b30 : Thu Aug 14 2003 - 01:47:25 EEST