diff options
| author | Yan, Zheng <zyan@redhat.com> | 2014-11-04 16:32:35 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@redhat.com> | 2014-12-17 20:09:50 +0300 |
| commit | ae385eaf24dc39c1703049112e4265b9f93b7d86 (patch) | |
| tree | 2efff0dab643f262fad1e63e32db2ffcb779bf53 /net/ceph | |
| parent | e96a650a8174e20112b400e72e0b2429aa66de20 (diff) | |
| download | lwn-ae385eaf24dc39c1703049112e4265b9f93b7d86.tar.gz lwn-ae385eaf24dc39c1703049112e4265b9f93b7d86.zip | |
libceph: store session key in cephx authorizer
Session key is required when calculating message signature. Save the session
key in authorizer, this avoid lookup ticket handler for each message
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'net/ceph')
| -rw-r--r-- | net/ceph/auth_x.c | 18 | ||||
| -rw-r--r-- | net/ceph/auth_x.h | 1 |
2 files changed, 12 insertions, 7 deletions
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c index 7e38b729696a..77f3885c16bc 100644 --- a/net/ceph/auth_x.c +++ b/net/ceph/auth_x.c @@ -293,6 +293,11 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac, dout("build_authorizer for %s %p\n", ceph_entity_type_name(th->service), au); + ceph_crypto_key_destroy(&au->session_key); + ret = ceph_crypto_key_clone(&au->session_key, &th->session_key); + if (ret) + return ret; + maxlen = sizeof(*msg_a) + sizeof(msg_b) + ceph_x_encrypt_buflen(ticket_blob_len); dout(" need len %d\n", maxlen); @@ -302,8 +307,10 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac, } if (!au->buf) { au->buf = ceph_buffer_new(maxlen, GFP_NOFS); - if (!au->buf) + if (!au->buf) { + ceph_crypto_key_destroy(&au->session_key); return -ENOMEM; + } } au->service = th->service; au->secret_id = th->secret_id; @@ -329,7 +336,7 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac, get_random_bytes(&au->nonce, sizeof(au->nonce)); msg_b.struct_v = 1; msg_b.nonce = cpu_to_le64(au->nonce); - ret = ceph_x_encrypt(&th->session_key, &msg_b, sizeof(msg_b), + ret = ceph_x_encrypt(&au->session_key, &msg_b, sizeof(msg_b), p, end - p); if (ret < 0) goto out_buf; @@ -588,17 +595,13 @@ static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac, struct ceph_authorizer *a, size_t len) { struct ceph_x_authorizer *au = (void *)a; - struct ceph_x_ticket_handler *th; int ret = 0; struct ceph_x_authorize_reply reply; void *preply = &reply; void *p = au->reply_buf; void *end = p + sizeof(au->reply_buf); - th = get_ticket_handler(ac, au->service); - if (IS_ERR(th)) - return PTR_ERR(th); - ret = ceph_x_decrypt(&th->session_key, &p, end, &preply, sizeof(reply)); + ret = ceph_x_decrypt(&au->session_key, &p, end, &preply, sizeof(reply)); if (ret < 0) return ret; if (ret != sizeof(reply)) @@ -618,6 +621,7 @@ static void ceph_x_destroy_authorizer(struct ceph_auth_client *ac, { struct ceph_x_authorizer *au = (void *)a; + ceph_crypto_key_destroy(&au->session_key); ceph_buffer_put(au->buf); kfree(au); } diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h index 65ee72082d99..e8b7c6917d47 100644 --- a/net/ceph/auth_x.h +++ b/net/ceph/auth_x.h @@ -26,6 +26,7 @@ struct ceph_x_ticket_handler { struct ceph_x_authorizer { + struct ceph_crypto_key session_key; struct ceph_buffer *buf; unsigned int service; u64 nonce; |