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146 lines
3.1 KiB
146 lines
3.1 KiB
// SPDX-License-Identifier: GPL-2.0 |
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#include <linux/ceph/ceph_debug.h> |
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#include <linux/err.h> |
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#include <linux/module.h> |
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#include <linux/random.h> |
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#include <linux/slab.h> |
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#include <linux/ceph/decode.h> |
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#include <linux/ceph/auth.h> |
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#include "auth_none.h" |
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static void reset(struct ceph_auth_client *ac) |
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{ |
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struct ceph_auth_none_info *xi = ac->private; |
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xi->starting = true; |
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} |
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static void destroy(struct ceph_auth_client *ac) |
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{ |
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kfree(ac->private); |
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ac->private = NULL; |
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} |
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static int is_authenticated(struct ceph_auth_client *ac) |
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{ |
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struct ceph_auth_none_info *xi = ac->private; |
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return !xi->starting; |
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} |
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static int should_authenticate(struct ceph_auth_client *ac) |
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{ |
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struct ceph_auth_none_info *xi = ac->private; |
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return xi->starting; |
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} |
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static int ceph_auth_none_build_authorizer(struct ceph_auth_client *ac, |
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struct ceph_none_authorizer *au) |
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{ |
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void *p = au->buf; |
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void *const end = p + sizeof(au->buf); |
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int ret; |
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ceph_encode_8_safe(&p, end, 1, e_range); |
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ret = ceph_auth_entity_name_encode(ac->name, &p, end); |
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if (ret < 0) |
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return ret; |
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ceph_encode_64_safe(&p, end, ac->global_id, e_range); |
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au->buf_len = p - (void *)au->buf; |
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dout("%s built authorizer len %d\n", __func__, au->buf_len); |
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return 0; |
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e_range: |
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return -ERANGE; |
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} |
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static int build_request(struct ceph_auth_client *ac, void *buf, void *end) |
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{ |
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return 0; |
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} |
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/* |
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* the generic auth code decode the global_id, and we carry no actual |
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* authenticate state, so nothing happens here. |
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*/ |
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static int handle_reply(struct ceph_auth_client *ac, u64 global_id, |
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void *buf, void *end, u8 *session_key, |
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int *session_key_len, u8 *con_secret, |
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int *con_secret_len) |
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{ |
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struct ceph_auth_none_info *xi = ac->private; |
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xi->starting = false; |
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ceph_auth_set_global_id(ac, global_id); |
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return 0; |
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} |
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static void ceph_auth_none_destroy_authorizer(struct ceph_authorizer *a) |
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{ |
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kfree(a); |
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} |
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/* |
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* build an 'authorizer' with our entity_name and global_id. it is |
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* identical for all services we connect to. |
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*/ |
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static int ceph_auth_none_create_authorizer( |
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struct ceph_auth_client *ac, int peer_type, |
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struct ceph_auth_handshake *auth) |
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{ |
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struct ceph_none_authorizer *au; |
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int ret; |
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au = kmalloc(sizeof(*au), GFP_NOFS); |
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if (!au) |
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return -ENOMEM; |
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au->base.destroy = ceph_auth_none_destroy_authorizer; |
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ret = ceph_auth_none_build_authorizer(ac, au); |
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if (ret) { |
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kfree(au); |
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return ret; |
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} |
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auth->authorizer = (struct ceph_authorizer *) au; |
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auth->authorizer_buf = au->buf; |
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auth->authorizer_buf_len = au->buf_len; |
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auth->authorizer_reply_buf = NULL; |
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auth->authorizer_reply_buf_len = 0; |
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return 0; |
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} |
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static const struct ceph_auth_client_ops ceph_auth_none_ops = { |
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.reset = reset, |
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.destroy = destroy, |
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.is_authenticated = is_authenticated, |
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.should_authenticate = should_authenticate, |
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.build_request = build_request, |
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.handle_reply = handle_reply, |
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.create_authorizer = ceph_auth_none_create_authorizer, |
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}; |
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int ceph_auth_none_init(struct ceph_auth_client *ac) |
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{ |
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struct ceph_auth_none_info *xi; |
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dout("ceph_auth_none_init %p\n", ac); |
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xi = kzalloc(sizeof(*xi), GFP_NOFS); |
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if (!xi) |
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return -ENOMEM; |
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xi->starting = true; |
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ac->protocol = CEPH_AUTH_NONE; |
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ac->private = xi; |
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ac->ops = &ceph_auth_none_ops; |
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return 0; |
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}
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