~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/net/ceph/auth_none.c

Version: ~ [ linux-5.18-rc6 ] ~ [ linux-5.17.6 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.38 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.114 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.192 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.241 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.277 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.312 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 
 14 static 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 
 22 static void destroy(struct ceph_auth_client *ac)
 23 {
 24         kfree(ac->private);
 25         ac->private = NULL;
 26 }
 27 
 28 static 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 
 35 static 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 
 42 static 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  */
 51 static 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  */
 65 static 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 
 96 bad2:
 97         ret = -ERANGE;
 98 bad:
 99         return ret;
100 }
101 
102 static void ceph_auth_none_destroy_authorizer(struct ceph_auth_client *ac,
103                                       struct ceph_authorizer *a)
104 {
105         /* nothing to do */
106 }
107 
108 static 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 
120 int 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 
138 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp