net/ceph/auth_none.c

Source file repositories/reference/linux-study-clean/net/ceph/auth_none.c

File Facts

System
Linux kernel
Corpus path
net/ceph/auth_none.c
Extension
.c
Size
3195 bytes
Lines
147
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0

#include <linux/ceph/ceph_debug.h>

#include <linux/err.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/slab.h>

#include <linux/ceph/decode.h>
#include <linux/ceph/auth.h>

#include "auth_none.h"

static void reset(struct ceph_auth_client *ac)
{
	struct ceph_auth_none_info *xi = ac->private;

	xi->starting = true;
}

static void destroy(struct ceph_auth_client *ac)
{
	kfree(ac->private);
	ac->private = NULL;
}

static int is_authenticated(struct ceph_auth_client *ac)
{
	struct ceph_auth_none_info *xi = ac->private;

	return !xi->starting;
}

static int should_authenticate(struct ceph_auth_client *ac)
{
	struct ceph_auth_none_info *xi = ac->private;

	return xi->starting;
}

static int ceph_auth_none_build_authorizer(struct ceph_auth_client *ac,
					   struct ceph_none_authorizer *au)
{
	void *p = au->buf;
	void *const end = p + sizeof(au->buf);
	int ret;

	ceph_encode_8_safe(&p, end, 1, e_range);
	ret = ceph_auth_entity_name_encode(ac->name, &p, end);
	if (ret < 0)
		return ret;

	ceph_encode_64_safe(&p, end, ac->global_id, e_range);
	au->buf_len = p - (void *)au->buf;
	dout("%s built authorizer len %d\n", __func__, au->buf_len);
	return 0;

e_range:
	return -ERANGE;
}

static int build_request(struct ceph_auth_client *ac, void *buf, void *end)
{
	return 0;
}

/*
 * the generic auth code decode the global_id, and we carry no actual
 * authenticate state, so nothing happens here.
 */
static int handle_reply(struct ceph_auth_client *ac, u64 global_id,
			void *buf, void *end, u8 *session_key,
			int *session_key_len, u8 *con_secret,
			int *con_secret_len)
{
	struct ceph_auth_none_info *xi = ac->private;

	xi->starting = false;
	ceph_auth_set_global_id(ac, global_id);
	return 0;
}

static void ceph_auth_none_destroy_authorizer(struct ceph_authorizer *a)
{
	kfree(a);
}

/*
 * build an 'authorizer' with our entity_name and global_id.  it is

Annotation

Implementation Notes