/src/freeradius-server/src/protocols/tftp/base.c
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1 | | /* |
2 | | * This program is free software; you can redistribute it and/or modify |
3 | | * it under the terms of the GNU General Public License as published by |
4 | | * the Free Software Foundation; either version 2 of the License, or |
5 | | * (at your option) any later version. |
6 | | * |
7 | | * This program is distributed in the hope that it will be useful, |
8 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
9 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
10 | | * GNU General Public License for more details. |
11 | | * |
12 | | * You should have received a copy of the GNU General Public License |
13 | | * along with this program; if not, write to the Free Software |
14 | | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
15 | | */ |
16 | | |
17 | | /** |
18 | | * $Id: 869431bead0098f2a439e0f5f82289f5a18c0909 $ |
19 | | * @file src/protocols/tftp/base.c |
20 | | * @brief TFTP protocol. |
21 | | * @author Jorge Pereira <jpereira@freeradius.org> |
22 | | * |
23 | | * @copyright 2021 The FreeRADIUS server project. |
24 | | * @copyright 2021 Network RADIUS SAS (legal@networkradius.com) |
25 | | */ |
26 | | |
27 | | RCSID("$Id: 869431bead0098f2a439e0f5f82289f5a18c0909 $") |
28 | | |
29 | | #include <freeradius-devel/util/pair.h> |
30 | | |
31 | | #include "tftp.h" |
32 | | #include "attrs.h" |
33 | | |
34 | | static uint32_t instance_count = 0; |
35 | | |
36 | | fr_dict_t const *dict_tftp; |
37 | | |
38 | | extern fr_dict_autoload_t libfreeradius_tftp[]; |
39 | | fr_dict_autoload_t libfreeradius_tftp[] = { |
40 | | { .out = &dict_tftp, .proto = "tftp" }, |
41 | | { NULL } |
42 | | }; |
43 | | |
44 | | fr_dict_attr_t const *attr_tftp_block; |
45 | | fr_dict_attr_t const *attr_tftp_block_size; |
46 | | fr_dict_attr_t const *attr_tftp_data; |
47 | | fr_dict_attr_t const *attr_tftp_error_code; |
48 | | fr_dict_attr_t const *attr_tftp_error_message; |
49 | | fr_dict_attr_t const *attr_tftp_filename; |
50 | | fr_dict_attr_t const *attr_tftp_opcode; |
51 | | fr_dict_attr_t const *attr_tftp_mode; |
52 | | |
53 | | fr_dict_attr_t const *attr_packet_type; |
54 | | |
55 | | extern fr_dict_attr_autoload_t libfreeradius_tftp_dict_attr[]; |
56 | | fr_dict_attr_autoload_t libfreeradius_tftp_dict_attr[] = { |
57 | | { .out = &attr_tftp_block, .name = "Block", .type = FR_TYPE_UINT16, .dict = &dict_tftp }, |
58 | | { .out = &attr_tftp_block_size, .name = "Block-Size", .type = FR_TYPE_UINT16, .dict = &dict_tftp }, |
59 | | { .out = &attr_tftp_data, .name = "Data", .type = FR_TYPE_OCTETS, .dict = &dict_tftp }, |
60 | | { .out = &attr_tftp_error_code, .name = "Error-Code", .type = FR_TYPE_UINT16, .dict = &dict_tftp }, |
61 | | { .out = &attr_tftp_error_message, .name = "Error-Message", .type = FR_TYPE_STRING, .dict = &dict_tftp }, |
62 | | { .out = &attr_tftp_filename, .name = "Filename", .type = FR_TYPE_STRING, .dict = &dict_tftp }, |
63 | | { .out = &attr_tftp_opcode, .name = "Opcode", .type = FR_TYPE_UINT16, .dict = &dict_tftp }, |
64 | | { .out = &attr_tftp_mode, .name = "Mode", .type = FR_TYPE_UINT8, .dict = &dict_tftp }, |
65 | | |
66 | | { .out = &attr_packet_type, .name = "Packet-Type", .type = FR_TYPE_UINT32, .dict = &dict_tftp }, |
67 | | |
68 | | { NULL } |
69 | | }; |
70 | | |
71 | | char const *fr_tftp_codes[FR_TFTP_MAX_CODE] = { |
72 | | [FR_PACKET_TYPE_VALUE_READ_REQUEST] = "Read-Request", |
73 | | [FR_PACKET_TYPE_VALUE_WRITE_REQUEST] = "Write-Request", |
74 | | [FR_PACKET_TYPE_VALUE_DATA] = "Data", |
75 | | [FR_PACKET_TYPE_VALUE_ACKNOWLEDGEMENT] = "Acknowledgement", |
76 | | [FR_PACKET_TYPE_VALUE_ERROR] = "Error", |
77 | | [FR_PACKET_TYPE_VALUE_DO_NOT_RESPOND] = "Do-Not-Respond" |
78 | | }; |
79 | | |
80 | | char const *fr_tftp_error_codes[FR_TFTP_MAX_ERROR_CODE] = { |
81 | | [FR_ERROR_CODE_VALUE_FILE_NOT_FOUND] = "File not found", |
82 | | [FR_ERROR_CODE_VALUE_ACCESS_VIOLATION] = "Access violation", |
83 | | [FR_ERROR_CODE_VALUE_DISK_FULL] = "Disk Full", |
84 | | [FR_ERROR_CODE_VALUE_ILLEGAL_OPERATION] = "Illegal TFTP operation", |
85 | | [FR_ERROR_CODE_VALUE_UNKNOWN_TRANSFER_ID] = "Unknown transfer ID", |
86 | | [FR_ERROR_CODE_VALUE_FILE_ALREADY_EXISTS] = "File already exists", |
87 | | [FR_ERROR_CODE_VALUE_NO_SUCH_USER] = "No such user" |
88 | | }; |
89 | | |
90 | | int fr_tftp_init(void) |
91 | 321 | { |
92 | 321 | if (instance_count > 0) { |
93 | 0 | instance_count++; |
94 | 0 | return 0; |
95 | 0 | } |
96 | | |
97 | 321 | if (fr_dict_autoload(libfreeradius_tftp) < 0) { |
98 | 0 | fr_strerror_printf_push("Failed loading the 'tftp' dictionary"); |
99 | 0 | return -1; |
100 | 0 | } |
101 | | |
102 | 321 | if (fr_dict_attr_autoload(libfreeradius_tftp_dict_attr) < 0) { |
103 | 0 | fr_strerror_printf("Failed loading the 'tftp' attributes"); |
104 | 0 | fr_dict_autofree(libfreeradius_tftp); |
105 | 0 | return -1; |
106 | 0 | } |
107 | | |
108 | 321 | instance_count++; |
109 | | |
110 | 321 | return 0; |
111 | 321 | } |
112 | | |
113 | | void fr_tftp_free(void) |
114 | 321 | { |
115 | 321 | if (--instance_count > 0) return; |
116 | | |
117 | 321 | fr_dict_autofree(libfreeradius_tftp); |
118 | 321 | } |