#include <linux/config.h>
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#include <linux/config.h>
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#ifdef CONFIG_PROC_FS
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#ifdef CONFIG_PROC_FS
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#include <linux/errno.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/proc_fs.h>
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#include <linux/proc_fs.h>
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#include <linux/time.h>
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#include <linux/time.h>
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#include <asm/uaccess.h>
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#include <asm/uaccess.h>
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#include <linux/atmmpc.h>
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#include <linux/atmmpc.h>
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#include <linux/atm.h>
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#include <linux/atm.h>
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#include "mpc.h"
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#include "mpc.h"
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#include "mpoa_caches.h"
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#include "mpoa_caches.h"
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/*
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/*
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* mpoa_proc.c: Implementation MPOA client's proc
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* mpoa_proc.c: Implementation MPOA client's proc
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* file system statistics
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* file system statistics
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*/
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*/
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#if 1
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#if 1
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#define dprintk printk /* debug */
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#define dprintk printk /* debug */
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#else
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#else
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#define dprintk(format,args...)
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#define dprintk(format,args...)
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#endif
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#endif
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#define STAT_FILE_NAME "mpc" /* Our statistic file's name */
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#define STAT_FILE_NAME "mpc" /* Our statistic file's name */
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extern struct mpoa_client *mpcs;
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extern struct mpoa_client *mpcs;
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extern struct proc_dir_entry *atm_proc_root; /* from proc.c. */
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extern struct proc_dir_entry *atm_proc_root; /* from proc.c. */
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static ssize_t proc_mpc_read(struct file *file, char *buff,
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static ssize_t proc_mpc_read(struct file *file, char *buff,
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size_t count, loff_t *pos);
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size_t count, loff_t *pos);
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static ssize_t proc_mpc_write(struct file *file, const char *buff,
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static ssize_t proc_mpc_write(struct file *file, const char *buff,
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size_t nbytes, loff_t *ppos);
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size_t nbytes, loff_t *ppos);
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static int parse_qos(const char *buff, int len);
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static int parse_qos(const char *buff, int len);
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/*
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/*
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* Define allowed FILE OPERATIONS
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* Define allowed FILE OPERATIONS
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*/
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*/
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static struct file_operations mpc_file_operations = {
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static struct file_operations mpc_file_operations = {
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read: proc_mpc_read,
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read: proc_mpc_read,
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write: proc_mpc_write,
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write: proc_mpc_write,
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};
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};
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static int print_header(char *buff,struct mpoa_client *mpc){
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static int print_header(char *buff,struct mpoa_client *mpc){
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if(mpc != NULL){
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if(mpc != NULL){
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return sprintf(buff,"\nInterface %d:\n\n",mpc->dev_num);
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return sprintf(buff,"\nInterface %d:\n\n",mpc->dev_num);
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}
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}
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return 0;
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return 0;
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}
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}
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/*
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/*
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* Returns the state of an ingress cache entry as a string
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* Returns the state of an ingress cache entry as a string
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*/
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*/
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static const char *ingress_state_string(int state){
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static const char *ingress_state_string(int state){
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switch(state) {
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switch(state) {
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case INGRESS_RESOLVING:
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case INGRESS_RESOLVING:
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return "resolving ";
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return "resolving ";
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break;
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break;
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case INGRESS_RESOLVED:
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case INGRESS_RESOLVED:
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return "resolved ";
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return "resolved ";
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break;
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break;
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case INGRESS_INVALID:
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case INGRESS_INVALID:
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return "invalid ";
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return "invalid ";
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break;
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break;
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case INGRESS_REFRESHING:
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case INGRESS_REFRESHING:
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return "refreshing ";
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return "refreshing ";
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break;
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break;
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default:
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default:
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return "";
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return "";
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}
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}
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}
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}
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/*
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/*
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* Returns the state of an egress cache entry as a string
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* Returns the state of an egress cache entry as a string
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*/
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*/
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static const char *egress_state_string(int state){
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static const char *egress_state_string(int state){
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switch(state) {
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switch(state) {
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case EGRESS_RESOLVED:
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case EGRESS_RESOLVED:
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return "resolved ";
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return "resolved ";
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break;
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break;
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case EGRESS_PURGE:
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case EGRESS_PURGE:
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return "purge ";
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return "purge ";
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break;
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break;
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case EGRESS_INVALID:
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case EGRESS_INVALID:
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return "invalid ";
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return "invalid ";
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break;
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break;
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default:
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default:
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return "";
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return "";
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}
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}
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}
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}
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/*
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/*
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* READING function - called when the /proc/atm/mpoa file is read from.
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* READING function - called when the /proc/atm/mpoa file is read from.
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*/
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*/
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static ssize_t proc_mpc_read(struct file *file, char *buff,
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static ssize_t proc_mpc_read(struct file *file, char *buff,
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size_t count, loff_t *pos){
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size_t count, loff_t *pos){
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unsigned long page = 0;
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unsigned long page = 0;
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unsigned char *temp;
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unsigned char *temp;
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int length = 0;
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int length = 0;
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int i = 0;
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int i = 0;
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struct mpoa_client *mpc = mpcs;
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struct mpoa_client *mpc = mpcs;
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in_cache_entry *in_entry;
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in_cache_entry *in_entry;
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eg_cache_entry *eg_entry;
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eg_cache_entry *eg_entry;
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struct timeval now;
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struct timeval now;
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unsigned char ip_string[16];
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unsigned char ip_string[16];
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if(count == 0)
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if(count == 0)
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return 0;
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return 0;
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page = get_free_page(GFP_KERNEL);
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page = get_free_page(GFP_KERNEL);
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if(!page)
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if(!page)
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return -ENOMEM;
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return -ENOMEM;
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atm_mpoa_disp_qos((char *)page, &length);
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atm_mpoa_disp_qos((char *)page, &length);
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while(mpc != NULL){
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while(mpc != NULL){
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length += print_header((char *)page + length, mpc);
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length += print_header((char *)page + length, mpc);
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length += sprintf((char *)page + length,"Ingress Entries:\nIP address State Holding time Packets fwded VPI VCI\n");
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length += sprintf((char *)page + length,"Ingress Entries:\nIP address State Holding time Packets fwded VPI VCI\n");
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in_entry = mpc->in_cache;
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in_entry = mpc->in_cache;
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do_gettimeofday(&now);
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do_gettimeofday(&now);
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while(in_entry != NULL){
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while(in_entry != NULL){
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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]);
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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]);
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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);
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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);
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if(in_entry->shortcut)
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if(in_entry->shortcut)
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length += sprintf((char *)page + length," %-3d %-3d",in_entry->shortcut->vpi,in_entry->shortcut->vci);
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length += sprintf((char *)page + length," %-3d %-3d",in_entry->shortcut->vpi,in_entry->shortcut->vci);
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length += sprintf((char *)page + length,"\n");
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length += sprintf((char *)page + length,"\n");
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in_entry = in_entry->next;
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in_entry = in_entry->next;
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}
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}
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length += sprintf((char *)page + length,"\n");
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length += sprintf((char *)page + length,"\n");
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eg_entry = mpc->eg_cache;
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eg_entry = mpc->eg_cache;
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length += sprintf((char *)page + length,"Egress Entries:\nIngress MPC ATM addr\nCache-id State Holding time Packets recvd Latest IP addr VPI VCI\n");
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length += sprintf((char *)page + length,"Egress Entries:\nIngress MPC ATM addr\nCache-id State Holding time Packets recvd Latest IP addr VPI VCI\n");
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while(eg_entry != NULL){
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while(eg_entry != NULL){
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for(i=0;i<ATM_ESA_LEN;i++){
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for(i=0;i<ATM_ESA_LEN;i++){
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length += sprintf((char *)page + length,"%02x",eg_entry->ctrl_info.in_MPC_data_ATM_addr[i]);}
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length += sprintf((char *)page + length,"%02x",eg_entry->ctrl_info.in_MPC_data_ATM_addr[i]);}
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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);
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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);
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/* latest IP address */
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/* latest IP address */
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temp = (unsigned char *)&eg_entry->latest_ip_addr;
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temp = (unsigned char *)&eg_entry->latest_ip_addr;
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sprintf(ip_string, "%d.%d.%d.%d", temp[0], temp[1], temp[2], temp[3]);
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sprintf(ip_string, "%d.%d.%d.%d", temp[0], temp[1], temp[2], temp[3]);
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length += sprintf((char *)page + length, "%-16s", ip_string);
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length += sprintf((char *)page + length, "%-16s", ip_string);
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if(eg_entry->shortcut)
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if(eg_entry->shortcut)
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length += sprintf((char *)page + length," %-3d %-3d",eg_entry->shortcut->vpi,eg_entry->shortcut->vci);
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length += sprintf((char *)page + length," %-3d %-3d",eg_entry->shortcut->vpi,eg_entry->shortcut->vci);
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length += sprintf((char *)page + length,"\n");
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length += sprintf((char *)page + length,"\n");
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eg_entry = eg_entry->next;
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eg_entry = eg_entry->next;
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}
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}
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length += sprintf((char *)page + length,"\n");
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length += sprintf((char *)page + length,"\n");
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mpc = mpc->next;
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mpc = mpc->next;
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}
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}
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if (*pos >= length) length = 0;
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if (*pos >= length) length = 0;
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else {
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else {
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if ((count + *pos) > length) count = length - *pos;
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if ((count + *pos) > length) count = length - *pos;
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if (copy_to_user(buff, (char *)page , count)) {
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if (copy_to_user(buff, (char *)page , count)) {
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free_page(page);
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free_page(page);
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return -EFAULT;
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return -EFAULT;
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}
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}
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*pos += count;
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*pos += count;
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}
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}
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free_page(page);
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free_page(page);
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return length;
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return length;
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}
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}
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static ssize_t proc_mpc_write(struct file *file, const char *buff,
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static ssize_t proc_mpc_write(struct file *file, const char *buff,
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size_t nbytes, loff_t *ppos)
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size_t nbytes, loff_t *ppos)
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{
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{
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int incoming, error, retval;
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int incoming, error, retval;
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char *page, c;
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char *page, c;
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const char *tmp;
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const char *tmp;
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if (nbytes == 0) return 0;
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if (nbytes == 0) return 0;
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if (nbytes >= PAGE_SIZE) nbytes = PAGE_SIZE-1;
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if (nbytes >= PAGE_SIZE) nbytes = PAGE_SIZE-1;
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error = verify_area(VERIFY_READ, buff, nbytes);
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error = verify_area(VERIFY_READ, buff, nbytes);
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if (error) return error;
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if (error) return error;
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page = (char *)__get_free_page(GFP_KERNEL);
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page = (char *)__get_free_page(GFP_KERNEL);
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if (page == NULL) return -ENOMEM;
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if (page == NULL) return -ENOMEM;
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incoming = 0;
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incoming = 0;
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tmp = buff;
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tmp = buff;
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while(incoming < nbytes){
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while(incoming < nbytes){
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if (get_user(c, tmp++)) return -EFAULT;
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if (get_user(c, tmp++)) return -EFAULT;
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incoming++;
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incoming++;
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if (c == '\0' || c == '\n')
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if (c == '\0' || c == '\n')
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break;
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break;
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}
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}
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retval = copy_from_user(page, buff, incoming);
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retval = copy_from_user(page, buff, incoming);
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if (retval != 0) {
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if (retval != 0) {
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printk("mpoa: proc_mpc_write: copy_from_user() failed\n");
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printk("mpoa: proc_mpc_write: copy_from_user() failed\n");
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return -EFAULT;
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return -EFAULT;
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}
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}
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*ppos += incoming;
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*ppos += incoming;
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page[incoming] = '\0';
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page[incoming] = '\0';
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retval = parse_qos(page, incoming);
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retval = parse_qos(page, incoming);
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if (retval == 0)
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if (retval == 0)
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printk("mpoa: proc_mpc_write: could not parse '%s'\n", page);
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printk("mpoa: proc_mpc_write: could not parse '%s'\n", page);
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free_page((unsigned long)page);
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free_page((unsigned long)page);
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return nbytes;
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return nbytes;
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}
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}
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static int parse_qos(const char *buff, int len)
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static int parse_qos(const char *buff, int len)
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{
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{
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/* possible lines look like this
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/* possible lines look like this
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* add 130.230.54.142 tx=max_pcr,max_sdu rx=max_pcr,max_sdu
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* add 130.230.54.142 tx=max_pcr,max_sdu rx=max_pcr,max_sdu
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*/
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*/
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int pos, i;
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int pos, i;
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uint32_t ipaddr;
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uint32_t ipaddr;
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unsigned char ip[4];
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unsigned char ip[4];
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char cmd[4], temp[256];
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char cmd[4], temp[256];
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const char *tmp, *prev;
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const char *tmp, *prev;
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struct atm_qos qos;
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struct atm_qos qos;
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int value[5];
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int value[5];
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memset(&qos, 0, sizeof(struct atm_qos));
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memset(&qos, 0, sizeof(struct atm_qos));
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strncpy(cmd, buff, 3);
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strncpy(cmd, buff, 3);
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if( strncmp(cmd,"add", 3) && strncmp(cmd,"del", 3))
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if( strncmp(cmd,"add", 3) && strncmp(cmd,"del", 3))
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return 0; /* not add or del */
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return 0; /* not add or del */
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pos = 4;
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pos = 4;
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/* next parse ip */
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/* next parse ip */
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prev = buff + pos;
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prev = buff + pos;
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for (i = 0; i < 3; i++) {
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for (i = 0; i < 3; i++) {
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tmp = strchr(prev, '.');
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tmp = strchr(prev, '.');
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if (tmp == NULL) return 0;
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if (tmp == NULL) return 0;
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memset(temp, '\0', 256);
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memset(temp, '\0', 256);
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memcpy(temp, prev, tmp-prev);
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memcpy(temp, prev, tmp-prev);
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ip[i] = (char)simple_strtoul(temp, NULL, 0);
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ip[i] = (char)simple_strtoul(temp, NULL, 0);
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tmp ++;
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tmp ++;
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prev = tmp;
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prev = tmp;
|
}
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}
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tmp = strchr(prev, ' ');
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tmp = strchr(prev, ' ');
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if (tmp == NULL) return 0;
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if (tmp == NULL) return 0;
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memset(temp, '\0', 256);
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memset(temp, '\0', 256);
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memcpy(temp, prev, tmp-prev);
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memcpy(temp, prev, tmp-prev);
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ip[i] = (char)simple_strtoul(temp, NULL, 0);
|
ip[i] = (char)simple_strtoul(temp, NULL, 0);
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ipaddr = *(uint32_t *)ip;
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ipaddr = *(uint32_t *)ip;
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|
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if(!strncmp(cmd, "del", 3))
|
if(!strncmp(cmd, "del", 3))
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return atm_mpoa_delete_qos(atm_mpoa_search_qos(ipaddr));
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return atm_mpoa_delete_qos(atm_mpoa_search_qos(ipaddr));
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|
|
/* next transmit values */
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/* next transmit values */
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tmp = strstr(buff, "tx=");
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tmp = strstr(buff, "tx=");
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if(tmp == NULL) return 0;
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if(tmp == NULL) return 0;
|
tmp += 3;
|
tmp += 3;
|
prev = tmp;
|
prev = tmp;
|
for( i = 0; i < 1; i++){
|
for( i = 0; i < 1; i++){
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tmp = strchr(prev, ',');
|
tmp = strchr(prev, ',');
|
if (tmp == NULL) return 0;
|
if (tmp == NULL) return 0;
|
memset(temp, '\0', 256);
|
memset(temp, '\0', 256);
|
memcpy(temp, prev, tmp-prev);
|
memcpy(temp, prev, tmp-prev);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
tmp ++;
|
tmp ++;
|
prev = tmp;
|
prev = tmp;
|
}
|
}
|
tmp = strchr(prev, ' ');
|
tmp = strchr(prev, ' ');
|
if (tmp == NULL) return 0;
|
if (tmp == NULL) return 0;
|
memset(temp, '\0', 256);
|
memset(temp, '\0', 256);
|
memcpy(temp, prev, tmp-prev);
|
memcpy(temp, prev, tmp-prev);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
qos.txtp.traffic_class = ATM_CBR;
|
qos.txtp.traffic_class = ATM_CBR;
|
qos.txtp.max_pcr = value[0];
|
qos.txtp.max_pcr = value[0];
|
qos.txtp.max_sdu = value[1];
|
qos.txtp.max_sdu = value[1];
|
|
|
/* next receive values */
|
/* next receive values */
|
tmp = strstr(buff, "rx=");
|
tmp = strstr(buff, "rx=");
|
if(tmp == NULL) return 0;
|
if(tmp == NULL) return 0;
|
if (strstr(buff, "rx=tx")) { /* rx == tx */
|
if (strstr(buff, "rx=tx")) { /* rx == tx */
|
qos.rxtp.traffic_class = qos.txtp.traffic_class;
|
qos.rxtp.traffic_class = qos.txtp.traffic_class;
|
qos.rxtp.max_pcr = qos.txtp.max_pcr;
|
qos.rxtp.max_pcr = qos.txtp.max_pcr;
|
qos.rxtp.max_cdv = qos.txtp.max_cdv;
|
qos.rxtp.max_cdv = qos.txtp.max_cdv;
|
qos.rxtp.max_sdu = qos.txtp.max_sdu;
|
qos.rxtp.max_sdu = qos.txtp.max_sdu;
|
} else {
|
} else {
|
tmp += 3;
|
tmp += 3;
|
prev = tmp;
|
prev = tmp;
|
for( i = 0; i < 1; i++){
|
for( i = 0; i < 1; i++){
|
tmp = strchr(prev, ',');
|
tmp = strchr(prev, ',');
|
if (tmp == NULL) return 0;
|
if (tmp == NULL) return 0;
|
memset(temp, '\0', 256);
|
memset(temp, '\0', 256);
|
memcpy(temp, prev, tmp-prev);
|
memcpy(temp, prev, tmp-prev);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
tmp ++;
|
tmp ++;
|
prev = tmp;
|
prev = tmp;
|
}
|
}
|
tmp = strchr(prev, '\0');
|
tmp = strchr(prev, '\0');
|
if (tmp == NULL) return 0;
|
if (tmp == NULL) return 0;
|
memset(temp, '\0', 256);
|
memset(temp, '\0', 256);
|
memcpy(temp, prev, tmp-prev);
|
memcpy(temp, prev, tmp-prev);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
value[i] = (int)simple_strtoul(temp, NULL, 0);
|
qos.rxtp.traffic_class = ATM_CBR;
|
qos.rxtp.traffic_class = ATM_CBR;
|
qos.rxtp.max_pcr = value[0];
|
qos.rxtp.max_pcr = value[0];
|
qos.rxtp.max_sdu = value[1];
|
qos.rxtp.max_sdu = value[1];
|
}
|
}
|
qos.aal = ATM_AAL5;
|
qos.aal = ATM_AAL5;
|
dprintk("mpoa: mpoa_proc.c: parse_qos(): setting qos paramameters to tx=%d,%d rx=%d,%d\n",
|
dprintk("mpoa: mpoa_proc.c: parse_qos(): setting qos paramameters to tx=%d,%d rx=%d,%d\n",
|
qos.txtp.max_pcr,
|
qos.txtp.max_pcr,
|
qos.txtp.max_sdu,
|
qos.txtp.max_sdu,
|
qos.rxtp.max_pcr,
|
qos.rxtp.max_pcr,
|
qos.rxtp.max_sdu
|
qos.rxtp.max_sdu
|
);
|
);
|
|
|
atm_mpoa_add_qos(ipaddr, &qos);
|
atm_mpoa_add_qos(ipaddr, &qos);
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/*
|
/*
|
* INITIALIZATION function - called when module is initialized/loaded.
|
* INITIALIZATION function - called when module is initialized/loaded.
|
*/
|
*/
|
int mpc_proc_init(void)
|
int mpc_proc_init(void)
|
{
|
{
|
struct proc_dir_entry *p;
|
struct proc_dir_entry *p;
|
|
|
p = create_proc_entry(STAT_FILE_NAME, 0, atm_proc_root);
|
p = create_proc_entry(STAT_FILE_NAME, 0, atm_proc_root);
|
if (!p) {
|
if (!p) {
|
printk(KERN_ERR "Unable to initialize /proc/atm/%s\n", STAT_FILE_NAME);
|
printk(KERN_ERR "Unable to initialize /proc/atm/%s\n", STAT_FILE_NAME);
|
return -ENOMEM;
|
return -ENOMEM;
|
}
|
}
|
p->proc_fops = &mpc_file_operations;
|
p->proc_fops = &mpc_file_operations;
|
p->owner = THIS_MODULE;
|
p->owner = THIS_MODULE;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
* DELETING function - called when module is removed.
|
* DELETING function - called when module is removed.
|
*/
|
*/
|
void mpc_proc_clean(void)
|
void mpc_proc_clean(void)
|
{
|
{
|
remove_proc_entry(STAT_FILE_NAME,atm_proc_root);
|
remove_proc_entry(STAT_FILE_NAME,atm_proc_root);
|
}
|
}
|
|
|
|
|
#endif /* CONFIG_PROC_FS */
|
#endif /* CONFIG_PROC_FS */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|