/*
* READING function - called when the /proc/atm/mpoa file is read from.
*/
static int mpc_show(struct seq_file *m, void *v)
{
struct mpoa_client *mpc = v;
int i;
in_cache_entry *in_entry;
eg_cache_entry *eg_entry;
struct timeval now;
unsigned char ip_string[16];
if (v == SEQ_START_TOKEN) {
atm_mpoa_disp_qos(m);
return 0;
}
seq_printf(m, "\nInterface %d:\n\n", mpc->dev_num);
seq_printf(m, "Ingress Entries:\nIP address State Holding time Packets fwded VPI VCI\n");
do_gettimeofday(&now);
for (in_entry = mpc->in_cache; in_entry; in_entry = in_entry->next) {
sprintf(ip_string, "%pI4", &in_entry->ctrl_info.in_dst_ip);
seq_printf(m, "%-16s%s%-14lu%-12u",
ip_string,
ingress_state_string(in_entry->entry_state),
in_entry->ctrl_info.holding_time -
(now.tv_sec-in_entry->tv.tv_sec),
in_entry->packets_fwded);
if (in_entry->shortcut)
seq_printf(m, " %-3d %-3d",
in_entry->shortcut->vpi,
in_entry->shortcut->vci);
seq_printf(m, "\n");
}
seq_printf(m, "\n");
seq_printf(m, "Egress Entries:\nIngress MPC ATM addr\nCache-id State Holding time Packets recvd Latest IP addr VPI VCI\n");
for (eg_entry = mpc->eg_cache; eg_entry; eg_entry = eg_entry->next) {
unsigned char *p = eg_entry->ctrl_info.in_MPC_data_ATM_addr;
for (i = 0; i < ATM_ESA_LEN; i++)
seq_printf(m, "%02x", p[i]);
seq_printf(m, "\n%-16lu%s%-14lu%-15u",
(unsigned long)ntohl(eg_entry->ctrl_info.cache_id),
egress_state_string(eg_entry->entry_state),
(eg_entry->ctrl_info.holding_time -
(now.tv_sec-eg_entry->tv.tv_sec)),
eg_entry->packets_rcvd);
/* latest IP address */
sprintf(ip_string, "%pI4", &eg_entry->latest_ip_addr);
seq_printf(m, "%-16s", ip_string);
if (eg_entry->shortcut)
seq_printf(m, " %-3d %-3d",
eg_entry->shortcut->vpi,
eg_entry->shortcut->vci);
seq_printf(m, "\n");
}
seq_printf(m, "\n");
return 0;
}
/*
* READING function - called when the /proc/atm/mpoa file is read from.
*/
static ssize_t proc_mpc_read(struct file *file, char *buff,
size_t count, loff_t *pos){
unsigned long page = 0;
unsigned char *temp;
ssize_t length = 0;
int i = 0;
struct mpoa_client *mpc = mpcs;
in_cache_entry *in_entry;
eg_cache_entry *eg_entry;
struct timeval now;
unsigned char ip_string[16];
if(count < 0)
return -EINVAL;
if(count == 0)
return 0;
page = get_free_page(GFP_KERNEL);
if(!page)
return -ENOMEM;
atm_mpoa_disp_qos((char *)page, &length);
while(mpc != NULL){
length += print_header((char *)page + length, mpc);
length += sprintf((char *)page + length,"Ingress Entries:\nIP address State Holding time Packets fwded VPI VCI\n");
in_entry = mpc->in_cache;
do_gettimeofday(&now);
while(in_entry != NULL){
temp = (unsigned char *)&in_entry->ctrl_info.in_dst_ip; sprintf(ip_string,"%d.%d.%d.%d", temp[0], temp[1], temp[2], temp[3]);
length += sprintf((char *)page + length,"%-16s%s%-14lu%-12u", ip_string, ingress_state_string(in_entry->entry_state), (in_entry->ctrl_info.holding_time-(now.tv_sec-in_entry->tv.tv_sec)), in_entry->packets_fwded);
if(in_entry->shortcut)
length += sprintf((char *)page + length," %-3d %-3d",in_entry->shortcut->vpi,in_entry->shortcut->vci);
length += sprintf((char *)page + length,"\n");
in_entry = in_entry->next;
}
length += sprintf((char *)page + length,"\n");
eg_entry = mpc->eg_cache;
length += sprintf((char *)page + length,"Egress Entries:\nIngress MPC ATM addr\nCache-id State Holding time Packets recvd Latest IP addr VPI VCI\n");
while(eg_entry != NULL){
for(i=0;i<ATM_ESA_LEN;i++){
length += sprintf((char *)page + length,"%02x",eg_entry->ctrl_info.in_MPC_data_ATM_addr[i]);}
length += sprintf((char *)page + length,"\n%-16lu%s%-14lu%-15u",(unsigned long) ntohl(eg_entry->ctrl_info.cache_id), egress_state_string(eg_entry->entry_state), (eg_entry->ctrl_info.holding_time-(now.tv_sec-eg_entry->tv.tv_sec)), eg_entry->packets_rcvd);
/* latest IP address */
temp = (unsigned char *)&eg_entry->latest_ip_addr;
sprintf(ip_string, "%d.%d.%d.%d", temp[0], temp[1], temp[2], temp[3]);
length += sprintf((char *)page + length, "%-16s", ip_string);
if(eg_entry->shortcut)
length += sprintf((char *)page + length," %-3d %-3d",eg_entry->shortcut->vpi,eg_entry->shortcut->vci);
length += sprintf((char *)page + length,"\n");
eg_entry = eg_entry->next;
}
length += sprintf((char *)page + length,"\n");
mpc = mpc->next;
}
if (*pos >= length) length = 0;
else {
if ((count + *pos) > length) count = length - *pos;
if (copy_to_user(buff, (char *)page , count)) {
free_page(page);
return -EFAULT;
}
*pos += count;
}
free_page(page);
return length;
}
