330 lines
10 KiB
C
330 lines
10 KiB
C
/*
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This file is part of libcapwap.
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libcapwap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libcapwap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CAPWAP_H
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#define __CAPWAP_H
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#include <stdint.h>
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#include <arpa/inet.h>
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#include "conn.h"
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/* capwap version and iana number */
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#define CW_VERSION 0
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#define CWIANA_ENTERPRISE_NUMBER 13277
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/* ports */
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#define CAPWAP_CONTROL_PORT 5246
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#define CAPWAP_CONTROL_PORT_STR "5246"
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/* transport header flags */
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#define CWTH_FLAGS_R1 0x01 /* bit 0 reserved 1 */
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#define CWTH_FLAGS_R2 0x02 /* bit 1 reserved 2 */
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#define CWTH_FLAGS_R3 0x04 /* bit 2 reserved 3 */
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#define CWTH_FLAGS_K 0x08 /* bit 3 Keep alive flag */
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#define CWTH_FLAGS_M 0x10 /* bit 4 MAC Adress field present*/
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#define CWTH_FLAGS_W 0x20 /* bit 5 wireless info present */
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#define CWTH_FLAGS_L 0x40 /* bit 6 last fragment */
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#define CWTH_FLAGS_F 0x80 /* bit 7 fragment */
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#define CWTH_FLAGS_T 0x100 /* bit 8 type of payload frame */
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/* wireless binding ids */
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#define CWTH_WBID_RESERVED1 0
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#define CWTH_WBID_IEEE80211 1
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#define CWTH_WBID_RESERVED2 2
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#define CWTH_WBID_EPCGLOBAL 3
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/* generic macroto to isolate bits from a dword */
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#define CW_GET_DWORD_BITS(src,start,len) ((~(0xFFFFFFFF<<len)) & (src >> (32 - start - len)))
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/* macros to acces transport header values */
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#define CWTH_GET_PREAMBLE(th) (th[0])
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//(ntohl(((uint32_t*)th)[0]) >> 24)
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#define CWTH_GET_FRAGID(th) ((ntohl((((uint32_t*)th)[1]) >> 16) & 0xffff))
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#define CWTH_GET_FRAGOFFSET(th) ((ntohl((((uint32_t*)th)[1]) >> 3) & 0x1fff))
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#define CWTH_GET_RID(th) ((ntohl((((uint32_t*)th)[0]) >> 14) & 0x1f))
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#define CWTH_GET_WBID(th) ((ntohl(((uint32_t*)th)[0]) >> 9) & 0x1f)
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#define CWTH_GET_HLEN(th) ((ntohl(((uint32_t*)th)[0]) >> 19) & 0x1f)
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#define CAPWAP_PACKET_PREAMBLE (CW_VERSION<<4)
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#define CAPWAP_DTLS_PACKET_PREAMBLE (CW_VERSION<<4|1)
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/*
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* control header stuff
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*/
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struct capwap_ctrlhdr
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{
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int msgtype;
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int seqnum;
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int flags;
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uint8_t * msgelems;
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int msgelemslen;
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};
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//extern int capwap_parse_trnsprthdr(struct capwap_trnsprthdr * cwh,uint8_t *msg, int msglen);
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//extern int capwap_parse_ctrlhdr(struct capwap_ctrlhdr * ch,uint8_t * msg, int len);
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/* CAPWAP message types as defined in RFC 5416 */
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#define CWMSG_DISCOVERY_REQUEST 1
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#define CWMSG_DISCOVERY_RESPONSE 2
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#define CWMSG_JOIN_REQUEST 3
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#define CWMSG_JOIN_RESPONSE 4
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/* Configuration Status Request 5
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Configuration Status Response 6
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Configuration Update Request 7
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Configuration Update Response 8
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WTP Event Request 9
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WTP Event Response 10
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Change State Event Request 11
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Change State Event Response 12
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*/
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#define CWMSG_ECHO_REQUEST 13
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#define CWMSG_ECHO_RESPONSE 14
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/* Image Data Request 15
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Image Data Response 16
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*/
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#define CWMSG_RESET_REQUEST 17
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#define CWMSG_RESET_RESPONSE 18
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/*
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Reset Request 17
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Reset Response 18
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*/
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#define CWMSG_PRIMARY_DISCOVERY_REQUEST 19
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#define CWMSG_PRIMARY_DISCOVERY_RESPONSE 20
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/* Data Transfer Request 21
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Data Transfer Response 22
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Clear Configuration Request 23
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Clear Configuration Response 24
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Station Configuration Request 25
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Station Configuration Response 26
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*/
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#define CWMSG_MAXMSG 26
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/*
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* CAPWAP message elements as defined in RFC 5416
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*/
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#define CWMSGELEM_AC_DESCRIPTOR 1
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/* AC IPv4 List 2
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AC IPv6 List 3
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*/
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#define CWMSGELEM_AC_NAME 4
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/*
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AC Name with Priority 5
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AC Timestamp 6
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Add MAC ACL Entry 7
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Add Station 8
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Reserved 9
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*/
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#define CWMSGELEM_CONTROL_IPV4_ADDRESS 10
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#define CWMSGELEM_CONTROL_IPV6_ADDRESS 11
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#define CWMSGELEM_CAPWAP_LOCAL_IPV4_ADDRESS 30
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#define CWMSGELEM_CAPWAP_LOCAL_IPV6_ADDRESS 50
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/* CAPWAP Timers 12
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CAPWAP Transport Protocol 51
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Data Transfer Data 13
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Data Transfer Mode 14
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Decryption Error Report 15
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Decryption Error Report Period 16
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Delete MAC ACL Entry 17
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Delete Station 18
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Reserved 19
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*/
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#define CWMSGELEM_DISCOVERY_TYPE 20
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/*
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Duplicate IPv4 Address 21
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Duplicate IPv6 Address 22
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*/
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#define CWMSGELEM_ECN_SUPPORT 53
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/* Idle Timeout 23
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Image Data 24
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Image Identifier 25
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Image Information 26
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Initiate Download 27
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*/
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#define CWMSGELEM_LOCATION_DATA 28
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#define CWMSGELEM_MAXIMUM_MESSAGE_LENGTH 29
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#define CWMSGELEM_MTU_DISCOVERY_PADDING 52
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/* Radio Administrative State 31
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Radio Operational State 32
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*/
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#define CWMSGELEM_RESULT_CODE 33
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/* Returned Message Element 34
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*/
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#define CWMSGELEM_SESSION_ID 35
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/* Statistics Timer 36
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Vendor Specific Payload 37
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*/
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#define CWMSGELEM_WTP_BOARD_DATA 38
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#define CWMSGELEM_WTP_DESCRIPTOR 39
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/* WTP Fallback 40
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*/
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#define CWMSGELEM_WTP_FRAME_TUNNEL_MODE 41
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/*
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Reserved 42
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*/
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/*
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Reserved 43
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*/
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#define CWMSGELEM_WTP_MAC_TYPE 44
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#define CWMSGELEM_WTP_NAME 45
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/*
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Unused/Reserved 46
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WTP Radio Statistics 47
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WTP Reboot Statistics 48
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WTP Static IP Address Information 49
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*/
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/* wtp board data subelements */
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#define CWBOARDDATA_MODELNO 0
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#define CWBOARDDATA_SERIALNO 1
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#define CWBOARDDATA_BOARDID 2
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#define CWBOARDDATA_REVISION 3
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#define CWBOARDDATA_MACADDRESS 4
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/* */
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#define CWACSECURITY_FLAGS_R 1 /* Reserved */
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#define CWACSECURITY_FLAGS_S 2 /* DTLS psk */
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#define CWACSECURITY_FLAGS_X 4 /* X.509 */
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#define CWMSGSUBELEM_WTP_DESCRIPTOR_HARDWARE_VERSION 0
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#define CWMSGSUBELEM_WTP_DESCRIPTOR_SOFTWARE_VERSION 1
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#define CWMSGSUBELEM_WTP_DESCRIPTOR_BOOTLOADER_VERSION 2
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#define CWMSGSUBELEM_WTP_DESCRIPTOR_OTHERSOFTWARE_VERSION 3
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#include "wtpinfo.h"
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#include "acinfo.h"
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/* Frame tunnnel mode bits */
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#define WTP_FRAME_TUNNEL_MODE_R 1 /* Reserved */
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#define WTP_FRAME_TUNNEL_MODE_L 2 /* Local bridging */
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#define WTP_FRAME_TUNNEL_MODE_E 4 /* 802.3 mode */
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#define WTP_FRAME_TUNNEL_MODE_N 8 /* native mode */
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#include "radioinfo.h"
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#include "wtpinfo.h"
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#define CW_DISCOVERY_TYPE_UNKNOWN 0
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#define CW_DISCOVERY_TYPE_STATIC 1
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#define CW_DISCOVERY_TYPE_DHCP 2
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#define CW_DISCOVERY_TYPE_DNS 3
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#define CW_DISCOVERY_TYPE_AC_REFERRAL 4
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/* wtpinfo methods */
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extern void wtpinfo_set_location(struct wtpinfo * wtpinfo, uint8_t * str, int len);
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extern int wtpinfo_set_radioinfo(struct wtpinfo * wtpinfo,uint8_t *msgelem, int len);
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#define CWRADIO_TYPE_B 1
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#define CWRADIO_TYPE_A 2
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#define CWRADIO_TYPE_G 4
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#define CWRADIO_TYPE_N 8
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/* wtp mac types */
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#define WTP_MAC_TYPE_LOCAL 0
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#define WTP_MAC_TYPE_SPLIT 1
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#define WTP_MAC_TYPE_BOTH 2
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//#define CWMSG_MAX_SIZE 65536
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#define CWMSG_MAX_SIZE 2048
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/* capwap timer default values */
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#define CAPWAP_DISCOVERY_INTERVAL 5
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#define CAPWAP_MAX_DISCOVERY_INTERVAL 20
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#define CAPWAP_RETRANSMIT_INTERVAL 3
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#define CAPWAP_MAX_DISCOVERIES 10
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#define CAPWAP_MAX_RETRANSMIT 5
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#define CAPWAP_SILENT_INTERVAL 30
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#define CAPWAP_ECHO_INTERVAL 30
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#define CAPWAP_CIPHER "PSK-AES128-CBC-SHA"
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/* AC descriptor security flags */
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#define AC_SECURITY_X 2 /* X.509 */
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#define AC_SECURITY_S 4 /* PSK support */
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/* AC dtls policy flags */
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#define AC_DTLS_POLICY_C 2 /* Clear data channel support */
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#define AC_DTLS_POLICY_D 4 /* DTLS Data channel support */
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extern void cwmsg_addelem_wtp_descriptor(struct cwmsg * cwmsg, struct wtpinfo * wtpinfo);
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extern void cwmsg_addelem_ctrl_ip_addrs(struct cwmsg *msg, struct ac_info *acinfo);
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extern void cwmsg_addelem_wtp_board_data(struct cwmsg * cwmsg, struct wtpinfo * wtpinfo);
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extern void cwmsg_addelem_cw_local_ip_addr(struct cwmsg *msg, struct conn * conn);
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extern void cwmsg_addelem_wtp_radio_infos(struct cwmsg * cwmsg,struct wtpinfo * wtpinfo);
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extern void cwmsg_addelem_result_code(struct cwmsg *msg,int rc);
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//extern void cwsend_discovery_reponse(struct conn * conn, struct ac_info * acinfo);
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//extern int process_msgelems(uint8_t * msgelems, int len,
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// int (*callback)(void*,int,uint8_t*,int),void *arg );
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//void cwsend_discovery_response(struct conn * conn,int seqnum, struct radioinfo * radioinfo, struct ac_info * acinfo, struct wtpinfo * wtpinfo);
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//
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extern void cwsend_discovery_response(struct conn * conn,int seqnum, struct radioinfo * radioinfo, struct ac_info * acinfo, struct wtpinfo * wtpinfo);
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extern int cwsend_discovery_request(struct conn * conn,struct radioinfo * radioinfo,struct wtpinfo * wtpinfo);
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extern void cwsend_join_response(struct conn * conn,int seqnum, int rc, struct radioinfo * radioinfo, struct ac_info * acinfo, struct wtpinfo * wtpinfo);
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extern void process_discovery_request(struct wtpinfo * wtpinfo, uint8_t * msg, int len);
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extern void process_join_request(struct wtpinfo * wtpinfo, uint8_t * msg, int len);
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void cwread_discovery_response(struct ac_info * acinfo, uint8_t * msg, int len);
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#endif
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