| Brian Waters | 13d9601 | 2017-12-08 16:53:31 -0600 | [diff] [blame] | 1 | /********************************************************************************************************* |
| 2 | * Software License Agreement (BSD License) * |
| 3 | * Author: Sebastien Decugis <sdecugis@freediameter.net> * |
| 4 | * * |
| 5 | * Copyright (c) 2011, WIDE Project and NICT * |
| 6 | * All rights reserved. * |
| 7 | * * |
| 8 | * Redistribution and use of this software in source and binary forms, with or without modification, are * |
| 9 | * permitted provided that the following conditions are met: * |
| 10 | * * |
| 11 | * * Redistributions of source code must retain the above * |
| 12 | * copyright notice, this list of conditions and the * |
| 13 | * following disclaimer. * |
| 14 | * * |
| 15 | * * Redistributions in binary form must reproduce the above * |
| 16 | * copyright notice, this list of conditions and the * |
| 17 | * following disclaimer in the documentation and/or other * |
| 18 | * materials provided with the distribution. * |
| 19 | * * |
| 20 | * * Neither the name of the WIDE Project or NICT nor the * |
| 21 | * names of its contributors may be used to endorse or * |
| 22 | * promote products derived from this software without * |
| 23 | * specific prior written permission of WIDE Project and * |
| 24 | * NICT. * |
| 25 | * * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * |
| 27 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * |
| 28 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * |
| 29 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * |
| 30 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * |
| 31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * |
| 32 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * |
| 33 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * |
| 34 | *********************************************************************************************************/ |
| 35 | |
| 36 | /* RADIUS translation plugin, to handle specific RADIUS attributes by either caching them and |
| 37 | adding them to a corresponding RADIUS reply, or just dropping the attributes (no conversion to Diameter) */ |
| 38 | /* This extension is a kind of swiss army-knife for interoperability, must be used with care. |
| 39 | All attribute behaviors are specified through the configuration file of the extension |
| 40 | */ |
| 41 | |
| 42 | #include "rgw_common.h" |
| 43 | |
| 44 | /* Action associated with an attribute */ |
| 45 | #define ACT_ECHO 1 |
| 46 | #define ACT_DROP 2 |
| 47 | |
| 48 | /* Result of configuration parsing */ |
| 49 | struct rgwp_config { |
| 50 | /* list of attributes and associated actions */ |
| 51 | struct fd_list attributes; |
| 52 | |
| 53 | /* Handler to store the echo'ed attributes values */ |
| 54 | struct session_handler * sess_hdl; |
| 55 | }; |
| 56 | |
| 57 | /* An item of the attribute list */ |
| 58 | struct ed_conf_attribute { |
| 59 | struct fd_list chain; /* link in the list */ |
| 60 | |
| 61 | struct { |
| 62 | unsigned action :2; /* ACT_ECHO or ACT_DROP */ |
| 63 | unsigned vsa :1; /* Interpret as Vendor-Specific, and match the vendor id in addition to the code */ |
| 64 | unsigned tlv :1; /* Interpret as Vendor-Specific with TLV format, and match the type also */ |
| 65 | unsigned ext :1; /* Interpret as radius extended attribute, and match the ext-type also */ |
| 66 | }; |
| 67 | |
| 68 | uint32_t vendor_id; /* vendor id to match when vsa = 1 */ |
| 69 | uint16_t extype; /* Ext-Type value to match if ext = 1 */ |
| 70 | uint8_t type; /* Type value to match if tlv = 1; */ |
| 71 | |
| 72 | uint8_t code; /* The attribute code, the list is ordered by this value */ |
| 73 | }; |
| 74 | |
| 75 | /* For ECHO items, we save a list of these in the session */ |
| 76 | struct ed_saved_attribute { |
| 77 | struct fd_list chain; |
| 78 | struct radius_attr_hdr attr; /* copy of the attribute */ |
| 79 | /* The data of the attribute follows ... */ |
| 80 | }; |
| 81 | |
| 82 | |
| 83 | /* The yacc parser */ |
| 84 | int ed_conffile_parse(char * conffile, struct rgwp_config *cs); |