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Add more hooks to test module.

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This commit is contained in:
Tony Jones 2007-02-15 01:42:31 +00:00
parent 91adace6df
commit e4c5a59fa4
1 changed files with 138 additions and 8 deletions
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146
kernel-patches/for-mainline/null_module/foobar-lsm.c
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@ -1,41 +1,171 @@
#include <linux/security.h>
#include <linux/module.h>
#include <linux/namei.h>
static void log_path(char *op, struct path *path)
static void log_path(char *op, struct dentry *dentry, struct vfsmount *mnt)
{
char *page, *name;
page = (char *)__get_free_page(GFP_KERNEL);
if (!page) {
printk(KERN_ERR "foobar(%s): Unable to get page for path %p/%p\n",
op, path->mnt, path->dentry);
op, mnt, dentry);
goto out;
}
name=d_path(path->dentry, path->mnt, page, PAGE_SIZE);
name=d_path(dentry, mnt, page, PAGE_SIZE);
if (IS_ERR(name)){
printk(KERN_ERR "foobar(%s): Error path %p/%p overflowed buffer\n",
op, path->mnt, path->dentry);
op, mnt, dentry);
goto out;
}
printk(KERN_INFO "foobar(%s): %p/%p->'%s'\n",
op, path->mnt, path->dentry, name);
op, mnt, dentry, name);
out:
if (page)
free_page((unsigned long)page);
}
static int foobar_inode_getattr(struct path *path)
static int foobar_inode_mkdir(struct inode *inode, struct dentry *dentry,
struct vfsmount *mnt, int mask)
{
log_path("inode_getattr", path);
log_path("inode_mkdir", dentry, mnt);
return 0;
}
static int foobar_inode_rmdir(struct inode *inode, struct dentry *dentry,
struct vfsmount *mnt)
{
log_path("inode_rmdir", dentry, mnt);
return 0;
}
static int foobar_inode_create(struct inode *inode, struct dentry *dentry,
struct vfsmount *mnt, int mask)
{
log_path("inode_create", dentry, mnt);
return 0;
}
static int foobar_inode_link(struct dentry *old_dentry,
struct vfsmount *old_mnt,
struct inode *inode,
struct dentry *new_dentry,
struct vfsmount *new_mnt)
{
log_path("inode_link (old)", old_dentry, old_mnt);
log_path("inode_link (new)", new_dentry, new_mnt);
return 0;
}
static int foobar_inode_unlink(struct inode *dir, struct dentry *dentry,
struct vfsmount *mnt)
{
log_path("inode_unlink", dentry, mnt);
return 0;
}
static int foobar_inode_mknod(struct inode *inode, struct dentry *dentry,
struct vfsmount *mnt, int mode, dev_t dev)
{
log_path("inode_mknod", dentry, mnt);
return 0;
}
static int foobar_inode_rename(struct inode *old_inode,
struct dentry *old_dentry,
struct vfsmount *old_mnt,
struct inode *new_inode,
struct dentry *new_dentry,
struct vfsmount *new_mnt)
{
log_path("inode_rename (old)", old_dentry, old_mnt);
log_path("inode_rename (new)", new_dentry, new_mnt);
return 0;
}
static int foobar_inode_setattr(struct dentry *dentry, struct vfsmount *mnt,
struct iattr *iattr)
{
log_path("inode_setattr", dentry, mnt);
return 0;
}
static int foobar_inode_setxattr(struct dentry *dentry, struct vfsmount *mnt,
char *name, void *value, size_t size,
int flags)
{
log_path("inode_setxattr", dentry, mnt);
return 0;
}
static int foobar_inode_getxattr(struct dentry *dentry,
struct vfsmount *mnt, char *name)
{
log_path("inode_getxattr", dentry, mnt);
return 0;
}
static int foobar_inode_listxattr(struct dentry *dentry,
struct vfsmount *mnt)
{
log_path("inode_listxattr", dentry, mnt);
return 0;
}
static int foobar_inode_removexattr(struct dentry *dentry,
struct vfsmount *mnt, char *name)
{
log_path("inode_removexattr", dentry, mnt);
return 0;
}
static int foobar_inode_symlink(struct inode *dir,
struct dentry *dentry, struct vfsmount *mnt,
const char *old_name)
{
log_path("inode_symlink", dentry, mnt);
return 0;
}
static int foobar_inode_permission(struct inode *inode, int mask,
struct nameidata *nd)
{
log_path("inode_permission", nd->dentry, nd->mnt);
return 0;
}
struct security_operations foobar_ops = {
.inode_getattr = foobar_inode_getattr,
.inode_create = foobar_inode_create,
.inode_link = foobar_inode_link,
.inode_unlink = foobar_inode_unlink,
.inode_mkdir = foobar_inode_mkdir,
.inode_rmdir = foobar_inode_rmdir,
.inode_mknod = foobar_inode_mknod,
.inode_rename = foobar_inode_rename,
.inode_setattr = foobar_inode_setattr,
.inode_setxattr = foobar_inode_setxattr,
.inode_getxattr = foobar_inode_getxattr,
.inode_listxattr = foobar_inode_listxattr,
.inode_removexattr = foobar_inode_removexattr,
.inode_symlink = foobar_inode_symlink,
// .inode_permission = foobar_inode_permission,
};
static int __init foobar_init(void)