Commit fbc1cf5c authored by Stephen Hemminger's avatar Stephen Hemminger

[NET]: Convert 802/tr to seq_file.

parent 55ea13df
......@@ -33,6 +33,7 @@
#include <linux/timer.h>
#include <linux/net.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
#include <net/arp.h>
......@@ -456,84 +457,108 @@ static void rif_check_expire(unsigned long dummy)
* routing.
*/
#ifndef CONFIG_PROC_FS
static int rif_get_info(char *buffer,char **start, off_t offset, int length) { return 0;}
#else
static int rif_get_info(char *buffer,char **start, off_t offset, int length)
#ifdef CONFIG_PROC_FS
/* Magic token to indicate first entry (header line) */
#define RIF_PROC_START ((void *)1)
static struct rif_cache_s *rif_get_idx(loff_t pos)
{
int i;
struct rif_cache_s *entry;
loff_t off = 0;
for(i=0;i < RIF_TABLE_SIZE;i++)
for(entry=rif_table[i];entry;entry=entry->next) {
if (off == pos)
return entry;
++off;
}
return NULL;
}
static void *rif_seq_start(struct seq_file *seq, loff_t *pos)
{
int len=0;
off_t begin=0;
off_t pos=0;
int size,i,j,rcf_len,segment,brdgnmb;
unsigned long now=jiffies;
unsigned long flags;
rif_cache entry;
spin_lock_irqsave(&rif_lock, flags);
seq->private = (void *) flags;
return *pos ? rif_get_idx(*pos - 1) : RIF_PROC_START;
}
static void *rif_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
return rif_get_idx(*pos++);
}
size=sprintf(buffer,
static void rif_seq_stop(struct seq_file *seq, void *v)
{
unsigned long flags = (unsigned long) seq->private;
spin_lock_irqsave(&rif_lock, flags);
}
static int rif_seq_show(struct seq_file *seq, void *v)
{
int j, rcf_len, segment, brdgnmb;
rif_cache entry = v;
if (v == RIF_PROC_START)
seq_puts(seq,
"if TR address TTL rcf routing segments\n");
pos+=size;
len+=size;
else {
struct net_device *dev = dev_get_by_index(entry->iface);
spin_lock_irqsave(&rif_lock,flags);
for(i=0;i < RIF_TABLE_SIZE;i++)
{
for(entry=rif_table[i];entry;entry=entry->next) {
struct net_device *dev = __dev_get_by_index(entry->iface);
seq_printf(seq, "%s %02X:%02X:%02X:%02X:%02X:%02X %7li ",
dev?dev->name:"?",
entry->addr[0],entry->addr[1],entry->addr[2],
entry->addr[3],entry->addr[4],entry->addr[5],
sysctl_tr_rif_timeout-(jiffies-entry->last_used));
size=sprintf(buffer+len,"%s %02X:%02X:%02X:%02X:%02X:%02X %7li ",
dev?dev->name:"?",entry->addr[0],entry->addr[1],entry->addr[2],entry->addr[3],entry->addr[4],entry->addr[5],
sysctl_tr_rif_timeout-(now-entry->last_used));
len+=size;
pos=begin+len;
if (entry->local_ring)
size=sprintf(buffer+len,"local\n");
seq_puts(seq, "local\n");
else {
size=sprintf(buffer+len,"%04X", ntohs(entry->rcf));
seq_printf(seq, "%04X", ntohs(entry->rcf));
rcf_len = ((ntohs(entry->rcf) & TR_RCF_LEN_MASK)>>8)-2;
if (rcf_len)
rcf_len >>= 1;
for(j = 1; j < rcf_len; j++) {
if(j==1) {
segment=ntohs(entry->rseg[j-1])>>4;
len+=size;
pos=begin+len;
size=sprintf(buffer+len," %03X",segment);
seq_printf(seq," %03X",segment);
};
segment=ntohs(entry->rseg[j])>>4;
brdgnmb=ntohs(entry->rseg[j-1])&0x00f;
len+=size;
pos=begin+len;
size=sprintf(buffer+len,"-%01X-%03X",brdgnmb,segment);
seq_printf(seq,"-%01X-%03X",brdgnmb,segment);
}
len+=size;
pos=begin+len;
size=sprintf(buffer+len,"\n");
seq_putc(seq, '\n');
}
len+=size;
pos=begin+len;
if(pos<offset)
{
len=0;
begin=pos;
}
if(pos>offset+length)
break;
}
if(pos>offset+length)
break;
}
spin_unlock_irqrestore(&rif_lock,flags);
return 0;
}
static struct seq_operations rif_seq_ops = {
.start = rif_seq_start,
.next = rif_seq_next,
.stop = rif_seq_stop,
.show = rif_seq_show,
};
*start=buffer+(offset-begin); /* Start of wanted data */
len-=(offset-begin); /* Start slop */
if(len>length)
len=length; /* Ending slop */
if (len<0)
len=0;
return len;
static int rif_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rif_seq_ops);
}
static struct file_operations rif_seq_fops = {
.owner = THIS_MODULE,
.open = rif_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
#endif
/*
......@@ -549,7 +574,7 @@ static int __init rif_init(void)
rif_timer.function = rif_check_expire;
add_timer(&rif_timer);
proc_net_create("tr_rif",0,rif_get_info);
proc_net_fops_create("tr_rif", S_IRUGO, &rif_seq_fops);
return 0;
}
......
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