Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 1 | /* Q.701-Q.704, Q.706, Q.707 handling code */ |
| 2 | /* |
| 3 | * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 4 | * (C) 2010 by On-Waves |
| 5 | * All Rights Reserved |
| 6 | * |
Holger Hans Peter Freyther | de56c22 | 2011-01-16 17:45:14 +0100 | [diff] [blame] | 7 | * This program is free software: you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU Affero General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Holger Hans Peter Freyther | de56c22 | 2011-01-16 17:45:14 +0100 | [diff] [blame] | 15 | * GNU Affero General Public License for more details. |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 16 | * |
Holger Hans Peter Freyther | de56c22 | 2011-01-16 17:45:14 +0100 | [diff] [blame] | 17 | * You should have received a copy of the GNU Affero General Public License |
| 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 19 | * |
| 20 | */ |
| 21 | |
| 22 | #ifndef mtp_level3_h |
| 23 | #define mtp_level3_h |
| 24 | |
Holger Hans Peter Freyther | cbf7d18 | 2010-07-31 05:25:35 +0800 | [diff] [blame] | 25 | #include <stdint.h> |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 26 | #include <endian.h> |
| 27 | #include <sys/types.h> |
| 28 | |
| 29 | |
| 30 | /* |
| 31 | * pssible service information octets.. |
| 32 | */ |
| 33 | #define MTP_NI_NATION_NET 0x02 |
| 34 | |
| 35 | #define MTP_SI_MNT_SNM_MSG 0x00 |
| 36 | #define MTP_SI_MNT_REG_MSG 0x01 |
| 37 | #define MTP_SI_MNT_SCCP 0x03 |
Holger Hans Peter Freyther | 3a80cb2 | 2010-12-08 11:12:46 +0100 | [diff] [blame] | 38 | #define MTP_SI_MNT_ISUP 0x05 |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 39 | |
| 40 | /* |
| 41 | * h0 contains the group, h1 the semantic of it |
| 42 | */ |
| 43 | |
| 44 | #define MTP_TST_MSG_GRP 0x01 |
| 45 | #define MTP_PROHIBIT_MSG_GRP 0x04 |
Holger Hans Peter Freyther | f0a5139 | 2011-01-18 20:45:40 +0100 | [diff] [blame] | 46 | #define MTP_SROUTE_MSG_GRP 0x05 |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 47 | #define MTP_TRF_RESTR_MSG_GRP 0x07 |
| 48 | |
| 49 | /* h1 values for different groups */ |
| 50 | #define MTP_TST_MSG_SLTM 0x01 |
| 51 | #define MTP_TST_MSG_SLTA 0x02 |
| 52 | |
| 53 | #define MTP_RESTR_MSG_ALLWED 0x01 |
| 54 | |
Holger Hans Peter Freyther | cfbe80f | 2011-01-18 20:35:11 +0100 | [diff] [blame] | 55 | /* For the prohibit group */ |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 56 | #define MTP_PROHIBIT_MSG_SIG 0x01 |
Holger Hans Peter Freyther | cfbe80f | 2011-01-18 20:35:11 +0100 | [diff] [blame] | 57 | #define MTP_PROHIBIT_MSG_TFA 0x05 |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 58 | |
Holger Hans Peter Freyther | f0a5139 | 2011-01-18 20:45:40 +0100 | [diff] [blame] | 59 | /* For the Signalling-route-set-test */ |
| 60 | #define MTP_SROUTE_MSG_TEST 0x01 |
| 61 | |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 62 | |
| 63 | #define SCCP_SST 0x03 |
Holger Hans Peter Freyther | 80ab4c6 | 2010-12-31 13:40:19 +0100 | [diff] [blame] | 64 | #define SCCP_SSP 0x02 |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 65 | #define SCCP_SSA 0x01 |
| 66 | |
| 67 | #define MTP_LINK_MASK 0x0F |
Holger Hans Peter Freyther | 925d566 | 2011-01-20 12:20:46 +0100 | [diff] [blame^] | 68 | #define MTP_ADDR_MASK 0x3FFF |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 69 | #define MTP_APOC_MASK 0x3f |
| 70 | |
| 71 | |
| 72 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
| 73 | #define MTP_LINK_SLS(addr) ((addr >>28) & MTP_LINK_MASK) |
| 74 | #define MTP_ADDR(link, dpc, opc) \ |
| 75 | (((dpc) & MTP_ADDR_MASK) << 0 | \ |
| 76 | ((opc) & MTP_ADDR_MASK) << 14| \ |
| 77 | ((link) & MTP_LINK_MASK) << 28) |
| 78 | #define MTP_MAKE_APOC(apoc) \ |
| 79 | (apoc & 0x3fff) |
Holger Hans Peter Freyther | 925d566 | 2011-01-20 12:20:46 +0100 | [diff] [blame^] | 80 | #define MTP_ADDR_DPC(addr) \ |
| 81 | (addr & MTP_ADDR_MASK) |
| 82 | #define MTP_ADDR_OPC(addr) \ |
| 83 | ((addr >> 14) & MTP_ADDR_MASK) |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 84 | #elif __BYTE_ORDER == __BIG_ENDIAN |
Holger Hans Peter Freyther | 9ed3e1b | 2010-07-31 05:22:56 +0800 | [diff] [blame] | 85 | static inline uint32_t c_swap_32(uint32_t in) |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 86 | { |
| 87 | return (((in & 0x000000ff) << 24) | |
| 88 | ((in & 0x0000ff00) << 8) | |
| 89 | ((in & 0x00ff0000) >> 8) | |
| 90 | ((in & 0xff000000) >> 24)); |
| 91 | } |
Holger Hans Peter Freyther | 585f3d9 | 2010-07-31 04:38:17 +0800 | [diff] [blame] | 92 | static inline uint16_t c_swap_16(uint16_t in) |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 93 | { |
| 94 | return (((in & 0x00ff) << 8) | |
| 95 | (in & 0xff00) >> 8); |
| 96 | } |
| 97 | #define MTP_LINK_SLS(addr) ((c_swap_32(addr)>>28) & MTP_LINK_MASK) |
| 98 | #define MTP_ADDR(link, dpc, opc) \ |
| 99 | c_swap_32(((dpc) & MTP_ADDR_MASK) << 0 | \ |
| 100 | ((opc) & MTP_ADDR_MASK) << 14| \ |
| 101 | ((link) & MTP_LINK_MASK) << 28) |
| 102 | #define MTP_MAKE_APOC(apoc) \ |
| 103 | c_swap_16((apoc & 0x3fff)) |
Holger Hans Peter Freyther | 925d566 | 2011-01-20 12:20:46 +0100 | [diff] [blame^] | 104 | #define MTP_ADDR_DPC(addr) \ |
| 105 | (c_swap_32(addr) & MTP_ADDR_MASK) |
| 106 | #define MTP_ADDR_OPC(addr) \ |
| 107 | ((c_swap_32(addr) >> 14) & MTP_ADDR_MASK) |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 108 | #endif |
| 109 | |
| 110 | |
| 111 | |
| 112 | /* |
| 113 | * not the on wire address... |
| 114 | */ |
| 115 | struct mtp_addr { |
Holger Hans Peter Freyther | 585f3d9 | 2010-07-31 04:38:17 +0800 | [diff] [blame] | 116 | uint16_t dpc; |
| 117 | uint16_t opc; |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 118 | uint8_t link; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 119 | } __attribute__((packed)); |
| 120 | |
| 121 | /* |
| 122 | * the struct is defined in Q.704 and can be seen in the |
| 123 | * wireshark dissectors too |
| 124 | */ |
| 125 | struct mtp_level_3_hdr { |
| 126 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 127 | uint8_t ser_ind : 4, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 128 | spare : 2, |
| 129 | ni : 2; |
| 130 | #elif __BYTE_ORDER == __BIG_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 131 | uint8_t ni : 2, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 132 | spare : 2, |
| 133 | ser_ind : 4; |
| 134 | #endif |
Holger Hans Peter Freyther | 9ed3e1b | 2010-07-31 05:22:56 +0800 | [diff] [blame] | 135 | uint32_t addr; |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 136 | uint8_t data[0]; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 137 | } __attribute__((packed)); |
| 138 | |
| 139 | struct mtp_level_3_cmn { |
| 140 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 141 | uint8_t h0 : 4, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 142 | h1 : 4; |
| 143 | #elif __BYTE_ORDER == __BIG_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 144 | uint8_t h1 : 4, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 145 | h0 : 4; |
| 146 | #endif |
| 147 | } __attribute__((packed)); |
| 148 | |
| 149 | struct mtp_level_3_mng { |
| 150 | struct mtp_level_3_cmn cmn; |
| 151 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 152 | uint8_t spare : 4, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 153 | length : 4; |
| 154 | #elif __BYTE_ORDER == __BIG_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 155 | uint8_t length : 4, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 156 | spare : 4; |
| 157 | #endif |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 158 | uint8_t data[0]; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 159 | } __attribute__((packed)); |
| 160 | |
| 161 | struct mtp_level_3_prohib { |
| 162 | struct mtp_level_3_cmn cmn; |
| 163 | |
Holger Hans Peter Freyther | 585f3d9 | 2010-07-31 04:38:17 +0800 | [diff] [blame] | 164 | uint16_t apoc; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 165 | } __attribute__((packed)); |
| 166 | |
| 167 | struct sccp_con_ctrl_prt_mgt { |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 168 | uint8_t sst; |
| 169 | uint8_t assn; /* affected sub system number */ |
Holger Hans Peter Freyther | 585f3d9 | 2010-07-31 04:38:17 +0800 | [diff] [blame] | 170 | uint16_t apoc; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 171 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 172 | uint8_t mul_ind : 2, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 173 | spare : 6; |
| 174 | #elif __BYTE_ORDER == __BIG_ENDIAN |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 175 | uint8_t spare : 6, |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 176 | mul_ind : 2; |
| 177 | #endif |
| 178 | } __attribute__((packed)); |
| 179 | |
| 180 | #endif |