diff options
| -rw-r--r-- | net/x25/x25_proc.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c index a11837d361d2..e0470bd8c2f9 100644 --- a/net/x25/x25_proc.c +++ b/net/x25/x25_proc.c @@ -165,6 +165,75 @@ out: return 0; } +static __inline__ struct x25_forward *x25_get_forward_idx(loff_t pos) +{ + struct x25_forward *f; + struct list_head *entry; + + list_for_each(entry, &x25_forward_list) { + f = list_entry(entry, struct x25_forward, node); + if (!pos--) + goto found; + } + + f = NULL; +found: + return f; +} + +static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos) +{ + loff_t l = *pos; + + read_lock_bh(&x25_forward_list_lock); + return l ? x25_get_forward_idx(--l) : SEQ_START_TOKEN; +} + +static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos) +{ + struct x25_forward *f; + + ++*pos; + if (v == SEQ_START_TOKEN) { + f = NULL; + if (!list_empty(&x25_forward_list)) + f = list_entry(x25_forward_list.next, + struct x25_forward, node); + goto out; + } + f = v; + if (f->node.next != &x25_forward_list) + f = list_entry(f->node.next, struct x25_forward, node); + else + f = NULL; +out: + return f; + +} + +static void x25_seq_forward_stop(struct seq_file *seq, void *v) +{ + read_unlock_bh(&x25_forward_list_lock); +} + +static int x25_seq_forward_show(struct seq_file *seq, void *v) +{ + struct x25_forward *f; + + if (v == SEQ_START_TOKEN) { + seq_printf(seq, "lci dev1 dev2\n"); + goto out; + } + + f = v; + + seq_printf(seq, "%d %-10s %-10s\n", + f->lci, f->dev1->name, f->dev2->name); + +out: + return 0; +} + static struct seq_operations x25_seq_route_ops = { .start = x25_seq_route_start, .next = x25_seq_route_next, @@ -179,6 +248,13 @@ static struct seq_operations x25_seq_socket_ops = { .show = x25_seq_socket_show, }; +static struct seq_operations x25_seq_forward_ops = { + .start = x25_seq_forward_start, + .next = x25_seq_forward_next, + .stop = x25_seq_forward_stop, + .show = x25_seq_forward_show, +}; + static int x25_seq_socket_open(struct inode *inode, struct file *file) { return seq_open(file, &x25_seq_socket_ops); @@ -189,6 +265,11 @@ static int x25_seq_route_open(struct inode *inode, struct file *file) return seq_open(file, &x25_seq_route_ops); } +static int x25_seq_forward_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &x25_seq_forward_ops); +} + static struct file_operations x25_seq_socket_fops = { .owner = THIS_MODULE, .open = x25_seq_socket_open, @@ -205,6 +286,14 @@ static struct file_operations x25_seq_route_fops = { .release = seq_release, }; +static struct file_operations x25_seq_forward_fops = { + .owner = THIS_MODULE, + .open = x25_seq_forward_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static struct proc_dir_entry *x25_proc_dir; int __init x25_proc_init(void) @@ -225,9 +314,17 @@ int __init x25_proc_init(void) if (!p) goto out_socket; p->proc_fops = &x25_seq_socket_fops; + + p = create_proc_entry("forward", S_IRUGO, x25_proc_dir); + if (!p) + goto out_forward; + p->proc_fops = &x25_seq_forward_fops; rc = 0; + out: return rc; +out_forward: + remove_proc_entry("socket", x25_proc_dir); out_socket: remove_proc_entry("route", x25_proc_dir); out_route: @@ -237,6 +334,7 @@ out_route: void __exit x25_proc_exit(void) { + remove_proc_entry("forward", x25_proc_dir); remove_proc_entry("route", x25_proc_dir); remove_proc_entry("socket", x25_proc_dir); remove_proc_entry("x25", proc_net); |