1 /* 2 BAREOS® - Backup Archiving REcovery Open Sourced 3 4 Copyright (C) 2013-2013 Planets Communications B.V. 5 Copyright (C) 2013-2013 Bareos GmbH & Co. KG 6 7 This program is Free Software; you can redistribute it and/or 8 modify it under the terms of version three of the GNU Affero General Public 9 License as published by the Free Software Foundation and included 10 in the file LICENSE. 11 12 This program is distributed in the hope that it will be useful, but 13 WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Affero General Public License for more details. 16 17 You should have received a copy of the GNU Affero General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20 02110-1301, USA. 21 */ 22 23 /* 24 * Marco van Wieringen, November 2013 25 */ 26 27 #ifndef BAREOS_LIB_SCSI_TAPEALERT_H_ 28 #define BAREOS_LIB_SCSI_TAPEALERT_H_ 1 29 30 /* 31 * Include the SCSI Low Level Interface functions and definitions. 32 */ 33 #include "scsi_lli.h" 34 35 #define MAX_TAPE_ALERTS 64 36 37 /* 38 * SCSI CDB opcodes 39 */ 40 enum 41 { 42 SCSI_LOG_OPCODE = 0x4d 43 }; 44 45 enum 46 { 47 SCSI_TAPE_ALERT_FLAGS = 0x2e 48 }; 49 50 /* 51 * SCSI Control Descriptor Block 52 */ 53 typedef struct { 54 uint8_t opcode; /* Operation Code See SCSI_*_OPCODE */ 55 uint8_t res_bits_1[1]; /* Reserved, 1 byte */ 56 uint8_t pagecode; /* Page Code, 1 byte */ 57 uint8_t res_bits_2[2]; /* Reserved, 2 bytes */ 58 uint8_t parameter_pointer[2]; /* Parameter Pointer, 2 bytes, 1 bytes MSB and 1 59 bytes LSB */ 60 uint8_t allocation_length[2]; /* Allocation Length, 2 bytes, 1 bytes MSB and 1 61 bytes LSB */ 62 uint8_t control_byte; /* Control Byte */ 63 } LOG_SCSI_CDB; 64 65 typedef struct { 66 uint8_t pagecode; /* Page Code, 1 byte */ 67 uint8_t res_bits_1[1]; /* Reserved, 1 byte */ 68 uint8_t 69 page_length[2]; /* Page Length, 2 bytes, 1 bytes MSB and 1 bytes LSB */ 70 uint8_t 71 log_parameters[2044]; /* Log parameters (2048 bytes - 4 bytes header) */ 72 } TAPEALERT_PAGE_BUFFER; 73 74 typedef struct { 75 uint8_t parameter_code[2]; /* Parameter Code, 2 bytes */ 76 #if HAVE_BIG_ENDIAN 77 uint8_t parameter_length; /* Parameter Length, 1 byte */ 78 uint8_t 79 disable_update : 1; /* DU: Will be set to 0. The library will always 80 update values reflected by the log parameters. */ 81 uint8_t disable_save : 1; /* DS: Will be set to 1. The library does not 82 support saving of log parameters. */ 83 uint8_t target_save_disabled : 1; /* TSD: Will be set to 0. The library 84 provides a self-defined method for saving 85 log parameters. */ 86 uint8_t 87 enable_threshold_comparison : 1; /* ETC: Will be set to 0. No comparison 88 to threshold values is made. */ 89 uint8_t threshold_met_criteria : 2; /* TMC: Will be set to 0. Comparison to 90 threshold values is not supported. */ 91 uint8_t 92 list_parameter_binary : 1; /* LBIN: This field is only valid if LP is set 93 * to 1. When LBIN is set to 0, the list 94 * parameter is ASCII. When LBIN is set to 1, 95 * the list parameter is a binary value. */ 96 uint8_t list_parameter : 1; /* LP: This field will be set to 0 for data 97 counters and set to 1 for list parameters */ 98 #else 99 uint8_t list_parameter : 1; /* LP: This field will be set to 0 for data 100 counters and set to 1 for list parameters */ 101 uint8_t 102 list_parameter_binary : 1; /* LBIN: This field is only valid if LP is set 103 * to 1. When LBIN is set to 0, the list 104 * parameter is ASCII. When LBIN is set to 1, 105 * the list parameter is a binary value. */ 106 uint8_t threshold_met_criteria : 2; /* TMC: Will be set to 0. Comparison to 107 threshold values is not supported. */ 108 uint8_t 109 enable_threshold_comparison : 1; /* ETC: Will be set to 0. No comparison 110 to threshold values is made. */ 111 uint8_t target_save_disabled : 1; /* TSD: Will be set to 0. The library 112 provides a self-defined method for saving 113 log parameters. */ 114 uint8_t disable_save : 1; /* DS: Will be set to 1. The library does not 115 support saving of log parameters. */ 116 uint8_t 117 disable_update : 1; /* DU: Will be set to 0. The library will always 118 update values reflected by the log parameters. */ 119 uint8_t parameter_length; /* Parameter Length, 1 byte */ 120 #endif 121 uint8_t parameter_value; /* Parameter Value, n bytes */ 122 } TAPEALERT_PARAMETER; 123 124 bool GetTapealertFlags(int fd, const char* device_name, uint64_t* flags); 125 126 127 #endif /* BAREOS_LIB_SCSI_TAPEALERT_H_ */ 128