hcq/MaxScale
hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MXS-2049: Forward client credentials to backend server

Browse Source 
Instead of requesting another set of credentials, the client credentials
are simply forwarded to the backend MariaDB server.
This commit is contained in:
Markus Mäkelä 2018-09-27 00:11:59 +03:00
parent 93d866c6a7
commit f65c890287
No known key found for this signature in database
GPG Key ID: 72D48FCE664F7B19
1 changed files with 11 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
server/modules/authenticator/GSSAPI/GSSAPIBackendAuth/gssapi_backend_auth.c
View File

@ -59,70 +59,27 @@ void gssapi_backend_auth_free(void *data)
static bool send_new_auth_token(DCB *dcb)
{
bool rval = false;
OM_uint32 major = 0, minor = 0;
gss_ctx_id_t handle = NULL;
gss_buffer_desc in = {0, 0};
gss_buffer_desc out = {0, 0};
gss_buffer_desc target = {0, 0};
gss_name_t princ = GSS_C_NO_NAME;
gssapi_auth_t *auth = (gssapi_auth_t*)dcb->authenticator_data;
MYSQL_session *ses = (MYSQL_session*)dcb->session->client_dcb->data;
GWBUF *buffer = gwbuf_alloc(MYSQL_HEADER_LEN + ses->auth_token_len);
/** The service principal name is sent by the backend server */
target.value = auth->principal_name;
target.length = auth->principal_name_len + 1;
// This function actually just forwards the client's token to the backend server
/** Convert the name into GSSAPI format */
major = gss_import_name(&minor, &target, GSS_C_NT_USER_NAME, &princ);
if (GSS_ERROR(major))
if (buffer)
{
report_error(major, minor);
}
uint8_t *data = (uint8_t*)GWBUF_DATA(buffer);
gw_mysql_set_byte3(data, ses->auth_token_len);
data += 3;
*data++ = ++auth->sequence;
memcpy(data, ses->auth_token, ses->auth_token_len);
/** Request the token for the service */
major = gss_init_sec_context(&minor, GSS_C_NO_CREDENTIAL,
&handle, princ, GSS_C_NO_OID, 0, 0,
GSS_C_NO_CHANNEL_BINDINGS, &in, NULL, &out, 0, 0);
if (GSS_ERROR(major))
{
report_error(major, minor);
}
else
{
/** We successfully requested the token, send it to the backend server */
GWBUF *buffer = gwbuf_alloc(MYSQL_HEADER_LEN + out.length);
if (buffer)
if (dcb_write(dcb, buffer))
{
uint8_t *data = (uint8_t*)GWBUF_DATA(buffer);
gw_mysql_set_byte3(data, out.length);
data += 3;
*data++ = ++auth->sequence;
memcpy(data, out.value, out.length);
if (dcb_write(dcb, buffer))
{
rval = true;
}
}
major = gss_delete_sec_context(&minor, &handle, &in);
if (GSS_ERROR(major))
{
report_error(major, minor);
}
major = gss_release_name(&minor, &princ);
if (GSS_ERROR(major))
{
report_error(major, minor);
rval = true;
}
}
return rval;
}
/**