1 /* Copyright (C) 2017 Mellanox Technologies Inc. */
2
3 struct semanage_ibpkey;
4 struct semanage_ibpkey_key;
5 typedef struct semanage_ibpkey record_t;
6 typedef struct semanage_ibpkey_key record_key_t;
7 #define DBASE_RECORD_DEFINED
8
9 struct dbase_file;
10 typedef struct dbase_file dbase_t;
11 #define DBASE_DEFINED
12
13 #include <stdlib.h>
14 #include <stdio.h>
15 #include <strings.h>
16 #include <semanage/handle.h>
17 #include "ibpkey_internal.h"
18 #include "context_internal.h"
19 #include "database_file.h"
20 #include "parse_utils.h"
21 #include "debug.h"
22
ibpkey_print(semanage_handle_t * handle,semanage_ibpkey_t * ibpkey,FILE * str)23 static int ibpkey_print(semanage_handle_t *handle,
24 semanage_ibpkey_t *ibpkey, FILE *str)
25 {
26 char *con_str = NULL;
27 char *subnet_prefix_str = NULL;
28
29 int low = semanage_ibpkey_get_low(ibpkey);
30 int high = semanage_ibpkey_get_high(ibpkey);
31
32 if (semanage_ibpkey_get_subnet_prefix(handle, ibpkey, &subnet_prefix_str) != 0)
33 goto err;
34
35 semanage_context_t *con = semanage_ibpkey_get_con(ibpkey);
36
37 if (fprintf(str, "ibpkeycon %s ", subnet_prefix_str) < 0)
38 goto err;
39
40 if (low == high) {
41 if (fprintf(str, "%d ", low) < 0)
42 goto err;
43 } else {
44 if (fprintf(str, "%d - %d ", low, high) < 0)
45 goto err;
46 }
47
48 if (semanage_context_to_string(handle, con, &con_str) < 0)
49 goto err;
50 if (fprintf(str, "%s\n", con_str) < 0)
51 goto err;
52
53 free(subnet_prefix_str);
54 free(con_str);
55 return STATUS_SUCCESS;
56
57 err:
58 ERR(handle, "could not print ibpkey range (%s) %u - %u to stream",
59 subnet_prefix_str, low, high);
60 free(subnet_prefix_str);
61 free(con_str);
62 return STATUS_ERR;
63 }
64
ibpkey_parse(semanage_handle_t * handle,parse_info_t * info,semanage_ibpkey_t * ibpkey)65 static int ibpkey_parse(semanage_handle_t *handle,
66 parse_info_t *info, semanage_ibpkey_t *ibpkey)
67 {
68 int low, high;
69 char *str = NULL;
70 semanage_context_t *con = NULL;
71
72 if (parse_skip_space(handle, info) < 0)
73 goto err;
74 if (!info->ptr)
75 goto last;
76
77 /* Header */
78 if (parse_assert_str(handle, info, "ibpkeycon") < 0)
79 goto err;
80 if (parse_assert_space(handle, info) < 0)
81 goto err;
82
83 /* Subnet Prefix */
84 if (parse_fetch_string(handle, info, &str, ' ') < 0)
85 goto err;
86 if (semanage_ibpkey_set_subnet_prefix(handle, ibpkey, str) < 0)
87 goto err;
88 free(str);
89 str = NULL;
90
91 /* Range/Pkey */
92 if (parse_assert_space(handle, info) < 0)
93 goto err;
94 if (parse_fetch_int(handle, info, &low, '-') < 0)
95 goto err;
96
97 /* If range (-) does not follow immediately, require a space
98 * In other words, the space here is optional, but only
99 * in the ranged case, not in the single ibpkey case,
100 * so do a custom test
101 */
102 if (*info->ptr && *info->ptr != '-') {
103 if (parse_assert_space(handle, info) < 0)
104 goto err;
105 }
106
107 if (parse_optional_ch(info, '-') != STATUS_NODATA) {
108 if (parse_skip_space(handle, info) < 0)
109 goto err;
110 if (parse_fetch_int(handle, info, &high, ' ') < 0)
111 goto err;
112 if (parse_assert_space(handle, info) < 0)
113 goto err;
114 semanage_ibpkey_set_range(ibpkey, low, high);
115 } else {
116 semanage_ibpkey_set_pkey(ibpkey, low);
117 }
118 /* Pkey context */
119 if (parse_fetch_string(handle, info, &str, ' ') < 0)
120 goto err;
121 if (semanage_context_from_string(handle, str, &con) < 0) {
122 ERR(handle, "invalid security context \"%s\" (%s: %u)\n%s",
123 str, info->filename, info->lineno, info->orig_line);
124 goto err;
125 }
126 if (!con) {
127 ERR(handle, "<<none>> context is not valid for ibpkeys (%s: %u):\n%s",
128 info->filename,
129 info->lineno, info->orig_line);
130 goto err;
131 }
132 free(str);
133 str = NULL;
134
135 if (semanage_ibpkey_set_con(handle, ibpkey, con) < 0)
136 goto err;
137
138 if (parse_assert_space(handle, info) < 0)
139 goto err;
140
141 semanage_context_free(con);
142 return STATUS_SUCCESS;
143
144 last:
145 parse_dispose_line(info);
146 return STATUS_NODATA;
147
148 err:
149 ERR(handle, "could not parse ibpkey record");
150 free(str);
151 semanage_context_free(con);
152 parse_dispose_line(info);
153 return STATUS_ERR;
154 }
155
156 /* IBPKEY RECORD: FILE extension: method table */
157 record_file_table_t SEMANAGE_IBPKEY_FILE_RTABLE = {
158 .parse = ibpkey_parse,
159 .print = ibpkey_print,
160 };
161
ibpkey_file_dbase_init(semanage_handle_t * handle,const char * path_ro,const char * path_rw,dbase_config_t * dconfig)162 int ibpkey_file_dbase_init(semanage_handle_t *handle,
163 const char *path_ro,
164 const char *path_rw,
165 dbase_config_t *dconfig)
166 {
167 if (dbase_file_init(handle,
168 path_ro,
169 path_rw,
170 &SEMANAGE_IBPKEY_RTABLE,
171 &SEMANAGE_IBPKEY_FILE_RTABLE, &dconfig->dbase) < 0)
172 return STATUS_ERR;
173
174 dconfig->dtable = &SEMANAGE_FILE_DTABLE;
175 return STATUS_SUCCESS;
176 }
177
ibpkey_file_dbase_release(dbase_config_t * dconfig)178 void ibpkey_file_dbase_release(dbase_config_t *dconfig)
179 {
180 dbase_file_release(dconfig->dbase);
181 }
182