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xt_quota2: support for Linux 3.10

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This commit is contained in:
Jan Engelhardt
2013-06-08 15:09:43 +02:00
parent db45bbcb9e
commit 172bc7e306
1 changed files with 26 additions and 14 deletions
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40
extensions/xt_quota2.c
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@@ -14,6 +14,7 @@
#include <linux/list.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/uidgid.h>
@@ -47,22 +48,27 @@ module_param_named(perms, quota_list_perms, uint, S_IRUGO | S_IWUSR);
module_param_named(uid, quota_list_uid, uint, S_IRUGO | S_IWUSR);
module_param_named(gid, quota_list_gid, uint, S_IRUGO | S_IWUSR);
static int quota_proc_read(char *page, char **start, off_t offset,
int count, int *eof, void *data)
static int quota_proc_show(struct seq_file *m, void *data)
{
struct xt_quota_counter *e = data;
struct xt_quota_counter *e = m->private;
int ret;
spin_lock_bh(&e->lock);
ret = snprintf(page, PAGE_SIZE, "%llu\n", e->quota);
ret = seq_printf(m, "%llu\n", e->quota);
spin_unlock_bh(&e->lock);
return ret;
}
static int quota_proc_write(struct file *file, const char __user *input,
unsigned long size, void *data)
static int quota_proc_open(struct inode *inode, struct file *file)
{
struct xt_quota_counter *e = data;
return single_open(file, quota_proc_show, PDE_DATA(inode));
}
static ssize_t
quota_proc_write(struct file *file, const char __user *input,
size_t size, loff_t *loff)
{
struct xt_quota_counter *e = PDE_DATA(file_inode(file));
char buf[sizeof("18446744073709551616")];
if (size > sizeof(buf))
@@ -77,6 +83,14 @@ static int quota_proc_write(struct file *file, const char __user *input,
return size;
}
static const struct file_operations quota_proc_fops = {
.open = quota_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.write = quota_proc_write,
.release = single_release,
};
static struct xt_quota_counter *
q2_new_counter(const struct xt_quota_mtinfo2 *q, bool anon)
{
@@ -124,16 +138,14 @@ q2_get_counter(const struct xt_quota_mtinfo2 *q)
if (e == NULL)
goto out;
p = e->procfs_entry = create_proc_entry(e->name, quota_list_perms,
proc_xt_quota);
p = proc_create_data(e->name, quota_list_perms, proc_xt_quota,
&quota_proc_fops, e);
if (p == NULL || IS_ERR(p))
goto out;
p->data = e;
p->read_proc = quota_proc_read;
p->write_proc = quota_proc_write;
p->uid = make_kuid(&init_user_ns, quota_list_uid);
p->gid = make_kgid(&init_user_ns, quota_list_gid);
e->procfs_entry = p;
proc_set_user(p, make_kuid(&init_user_ns, quota_list_uid),
make_kgid(&init_user_ns, quota_list_gid));
list_add_tail(&e->list, &counter_list);
spin_unlock_bh(&counter_list_lock);
return e;