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1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/ceph/ceph_debug.h>
4
5#include <linux/err.h>
6#include <linux/module.h>
7#include <linux/random.h>
8#include <linux/slab.h>
9
10#include <linux/ceph/decode.h>
11#include <linux/ceph/auth.h>
12
13#include "auth_none.h"
14
15static void reset(struct ceph_auth_client *ac)
16{
17 struct ceph_auth_none_info *xi = ac->private;
18
19 xi->starting = true;
20}
21
22static void destroy(struct ceph_auth_client *ac)
23{
24 kfree(ac->private);
25 ac->private = NULL;
26}
27
28static int is_authenticated(struct ceph_auth_client *ac)
29{
30 struct ceph_auth_none_info *xi = ac->private;
31
32 return !xi->starting;
33}
34
35static int should_authenticate(struct ceph_auth_client *ac)
36{
37 struct ceph_auth_none_info *xi = ac->private;
38
39 return xi->starting;
40}
41
42static int ceph_auth_none_build_authorizer(struct ceph_auth_client *ac,
43 struct ceph_none_authorizer *au)
44{
45 void *p = au->buf;
46 void *const end = p + sizeof(au->buf);
47 int ret;
48
49 ceph_encode_8_safe(&p, end, 1, e_range);
50 ret = ceph_auth_entity_name_encode(ac->name, &p, end);
51 if (ret < 0)
52 return ret;
53
54 ceph_encode_64_safe(&p, end, ac->global_id, e_range);
55 au->buf_len = p - (void *)au->buf;
56 dout("%s built authorizer len %d\n", __func__, au->buf_len);
57 return 0;
58
59e_range:
60 return -ERANGE;
61}
62
63static int build_request(struct ceph_auth_client *ac, void *buf, void *end)
64{
65 return 0;
66}
67
68/*
69 * the generic auth code decode the global_id, and we carry no actual
70 * authenticate state, so nothing happens here.
71 */
72static int handle_reply(struct ceph_auth_client *ac, int result,
73 void *buf, void *end)
74{
75 struct ceph_auth_none_info *xi = ac->private;
76
77 xi->starting = false;
78 return result;
79}
80
81static void ceph_auth_none_destroy_authorizer(struct ceph_authorizer *a)
82{
83 kfree(a);
84}
85
86/*
87 * build an 'authorizer' with our entity_name and global_id. it is
88 * identical for all services we connect to.
89 */
90static int ceph_auth_none_create_authorizer(
91 struct ceph_auth_client *ac, int peer_type,
92 struct ceph_auth_handshake *auth)
93{
94 struct ceph_none_authorizer *au;
95 int ret;
96
97 au = kmalloc(sizeof(*au), GFP_NOFS);
98 if (!au)
99 return -ENOMEM;
100
101 au->base.destroy = ceph_auth_none_destroy_authorizer;
102
103 ret = ceph_auth_none_build_authorizer(ac, au);
104 if (ret) {
105 kfree(au);
106 return ret;
107 }
108
109 auth->authorizer = (struct ceph_authorizer *) au;
110 auth->authorizer_buf = au->buf;
111 auth->authorizer_buf_len = au->buf_len;
112 auth->authorizer_reply_buf = au->reply_buf;
113 auth->authorizer_reply_buf_len = sizeof (au->reply_buf);
114
115 return 0;
116}
117
118static const struct ceph_auth_client_ops ceph_auth_none_ops = {
119 .name = "none",
120 .reset = reset,
121 .destroy = destroy,
122 .is_authenticated = is_authenticated,
123 .should_authenticate = should_authenticate,
124 .build_request = build_request,
125 .handle_reply = handle_reply,
126 .create_authorizer = ceph_auth_none_create_authorizer,
127};
128
129int ceph_auth_none_init(struct ceph_auth_client *ac)
130{
131 struct ceph_auth_none_info *xi;
132
133 dout("ceph_auth_none_init %p\n", ac);
134 xi = kzalloc(sizeof(*xi), GFP_NOFS);
135 if (!xi)
136 return -ENOMEM;
137
138 xi->starting = true;
139
140 ac->protocol = CEPH_AUTH_NONE;
141 ac->private = xi;
142 ac->ops = &ceph_auth_none_ops;
143 return 0;
144}
1
2#include <linux/ceph/ceph_debug.h>
3
4#include <linux/err.h>
5#include <linux/module.h>
6#include <linux/random.h>
7#include <linux/slab.h>
8
9#include <linux/ceph/decode.h>
10#include <linux/ceph/auth.h>
11
12#include "auth_none.h"
13
14static void reset(struct ceph_auth_client *ac)
15{
16 struct ceph_auth_none_info *xi = ac->private;
17
18 xi->starting = true;
19 xi->built_authorizer = false;
20}
21
22static void destroy(struct ceph_auth_client *ac)
23{
24 kfree(ac->private);
25 ac->private = NULL;
26}
27
28static int is_authenticated(struct ceph_auth_client *ac)
29{
30 struct ceph_auth_none_info *xi = ac->private;
31
32 return !xi->starting;
33}
34
35static int should_authenticate(struct ceph_auth_client *ac)
36{
37 struct ceph_auth_none_info *xi = ac->private;
38
39 return xi->starting;
40}
41
42static int build_request(struct ceph_auth_client *ac, void *buf, void *end)
43{
44 return 0;
45}
46
47/*
48 * the generic auth code decode the global_id, and we carry no actual
49 * authenticate state, so nothing happens here.
50 */
51static int handle_reply(struct ceph_auth_client *ac, int result,
52 void *buf, void *end)
53{
54 struct ceph_auth_none_info *xi = ac->private;
55
56 xi->starting = false;
57 return result;
58}
59
60/*
61 * build an 'authorizer' with our entity_name and global_id. we can
62 * reuse a single static copy since it is identical for all services
63 * we connect to.
64 */
65static int ceph_auth_none_create_authorizer(
66 struct ceph_auth_client *ac, int peer_type,
67 struct ceph_auth_handshake *auth)
68{
69 struct ceph_auth_none_info *ai = ac->private;
70 struct ceph_none_authorizer *au = &ai->au;
71 void *p, *end;
72 int ret;
73
74 if (!ai->built_authorizer) {
75 p = au->buf;
76 end = p + sizeof(au->buf);
77 ceph_encode_8(&p, 1);
78 ret = ceph_entity_name_encode(ac->name, &p, end - 8);
79 if (ret < 0)
80 goto bad;
81 ceph_decode_need(&p, end, sizeof(u64), bad2);
82 ceph_encode_64(&p, ac->global_id);
83 au->buf_len = p - (void *)au->buf;
84 ai->built_authorizer = true;
85 dout("built authorizer len %d\n", au->buf_len);
86 }
87
88 auth->authorizer = (struct ceph_authorizer *) au;
89 auth->authorizer_buf = au->buf;
90 auth->authorizer_buf_len = au->buf_len;
91 auth->authorizer_reply_buf = au->reply_buf;
92 auth->authorizer_reply_buf_len = sizeof (au->reply_buf);
93
94 return 0;
95
96bad2:
97 ret = -ERANGE;
98bad:
99 return ret;
100}
101
102static void ceph_auth_none_destroy_authorizer(struct ceph_auth_client *ac,
103 struct ceph_authorizer *a)
104{
105 /* nothing to do */
106}
107
108static const struct ceph_auth_client_ops ceph_auth_none_ops = {
109 .name = "none",
110 .reset = reset,
111 .destroy = destroy,
112 .is_authenticated = is_authenticated,
113 .should_authenticate = should_authenticate,
114 .build_request = build_request,
115 .handle_reply = handle_reply,
116 .create_authorizer = ceph_auth_none_create_authorizer,
117 .destroy_authorizer = ceph_auth_none_destroy_authorizer,
118};
119
120int ceph_auth_none_init(struct ceph_auth_client *ac)
121{
122 struct ceph_auth_none_info *xi;
123
124 dout("ceph_auth_none_init %p\n", ac);
125 xi = kzalloc(sizeof(*xi), GFP_NOFS);
126 if (!xi)
127 return -ENOMEM;
128
129 xi->starting = true;
130 xi->built_authorizer = false;
131
132 ac->protocol = CEPH_AUTH_NONE;
133 ac->private = xi;
134 ac->ops = &ceph_auth_none_ops;
135 return 0;
136}
137