1 /* Copyright (C) 2005 Red Hat, Inc. */ 2 3 /* Object: semanage_user_extra_t (SELinux User/Class Extra Data) 4 * Object: semanage_user_extra_key_t (SELinux User/Class Key) 5 * Implements: record_t (Database Record) 6 * Implements: record_key_t (Database Record Key) 7 */ 8 9 #include <sepol/user_record.h> 10 11 typedef sepol_user_key_t semanage_user_key_t; 12 #define _SEMANAGE_USER_KEY_DEFINED_ 13 14 struct semanage_user_extra; 15 typedef struct semanage_user_extra record_t; 16 typedef semanage_user_key_t record_key_t; 17 #define DBASE_RECORD_DEFINED 18 19 #include <semanage/handle.h> 20 #include <stdlib.h> 21 #include <string.h> 22 #include "user_internal.h" 23 #include "debug.h" 24 #include "database.h" 25 26 struct semanage_user_extra { 27 /* This user's name */ 28 char *name; 29 30 /* Labeling prefix */ 31 char *prefix; 32 }; 33 34 static int semanage_user_extra_key_extract(semanage_handle_t * handle, 35 const semanage_user_extra_t * 36 user_extra, 37 semanage_user_key_t ** key_ptr) 38 { 39 40 if (semanage_user_key_create(handle, user_extra->name, key_ptr) < 0) 41 goto err; 42 43 return STATUS_SUCCESS; 44 45 err: 46 ERR(handle, "could not extract key from user extra record"); 47 return STATUS_ERR; 48 } 49 50 static int semanage_user_extra_compare(const semanage_user_extra_t * user_extra, 51 const semanage_user_key_t * key) 52 { 53 54 const char *name; 55 semanage_user_key_unpack(key, &name); 56 57 return strcmp(user_extra->name, name); 58 } 59 60 static int semanage_user_extra_compare2(const semanage_user_extra_t * 61 user_extra, 62 const semanage_user_extra_t * 63 user_extra2) 64 { 65 66 return strcmp(user_extra->name, user_extra2->name); 67 } 68 69 static int semanage_user_extra_compare2_qsort(const semanage_user_extra_t ** 70 user_extra, 71 const semanage_user_extra_t ** 72 user_extra2) 73 { 74 75 return strcmp((*user_extra)->name, (*user_extra2)->name); 76 } 77 78 /* Name */ 79 hidden const char *semanage_user_extra_get_name(const semanage_user_extra_t * 80 user_extra) 81 { 82 83 return user_extra->name; 84 } 85 86 hidden int semanage_user_extra_set_name(semanage_handle_t * handle, 87 semanage_user_extra_t * user_extra, 88 const char *name) 89 { 90 91 char *tmp_name = strdup(name); 92 if (!tmp_name) { 93 ERR(handle, "out of memory, could not set name %s " 94 "for user extra data", name); 95 return STATUS_ERR; 96 } 97 free(user_extra->name); 98 user_extra->name = tmp_name; 99 return STATUS_SUCCESS; 100 } 101 102 /* Labeling prefix */ 103 hidden const char *semanage_user_extra_get_prefix(const semanage_user_extra_t * 104 user_extra) 105 { 106 107 return user_extra->prefix; 108 } 109 110 hidden int semanage_user_extra_set_prefix(semanage_handle_t * handle, 111 semanage_user_extra_t * user_extra, 112 const char *prefix) 113 { 114 115 char *tmp_prefix = strdup(prefix); 116 if (!tmp_prefix) { 117 ERR(handle, "out of memory, could not set prefix %s " 118 "for user %s", prefix, user_extra->name); 119 return STATUS_ERR; 120 } 121 free(user_extra->prefix); 122 user_extra->prefix = tmp_prefix; 123 return STATUS_SUCCESS; 124 } 125 126 /* Create */ 127 hidden int semanage_user_extra_create(semanage_handle_t * handle, 128 semanage_user_extra_t ** user_extra_ptr) 129 { 130 131 semanage_user_extra_t *user_extra = 132 (semanage_user_extra_t *) malloc(sizeof(semanage_user_extra_t)); 133 134 if (!user_extra) { 135 ERR(handle, "out of memory, could not " 136 "create user extra data record"); 137 return STATUS_ERR; 138 } 139 140 user_extra->name = NULL; 141 user_extra->prefix = NULL; 142 143 *user_extra_ptr = user_extra; 144 return STATUS_SUCCESS; 145 } 146 147 /* Destroy */ 148 hidden void semanage_user_extra_free(semanage_user_extra_t * user_extra) 149 { 150 151 if (!user_extra) 152 return; 153 154 free(user_extra->name); 155 free(user_extra->prefix); 156 free(user_extra); 157 } 158 159 /* Deep copy clone */ 160 hidden int semanage_user_extra_clone(semanage_handle_t * handle, 161 const semanage_user_extra_t * user_extra, 162 semanage_user_extra_t ** user_extra_ptr) 163 { 164 165 semanage_user_extra_t *new_user_extra = NULL; 166 167 if (semanage_user_extra_create(handle, &new_user_extra) < 0) 168 goto err; 169 170 if (semanage_user_extra_set_name 171 (handle, new_user_extra, user_extra->name) < 0) 172 goto err; 173 174 if (semanage_user_extra_set_prefix 175 (handle, new_user_extra, user_extra->prefix) < 0) 176 goto err; 177 178 *user_extra_ptr = new_user_extra; 179 return STATUS_SUCCESS; 180 181 err: 182 ERR(handle, "could not clone extra data for user %s", user_extra->name); 183 semanage_user_extra_free(new_user_extra); 184 return STATUS_ERR; 185 } 186 187 /* Record base functions */ 188 record_table_t SEMANAGE_USER_EXTRA_RTABLE = { 189 .create = semanage_user_extra_create, 190 .key_extract = semanage_user_extra_key_extract, 191 .key_free = semanage_user_key_free, 192 .clone = semanage_user_extra_clone, 193 .compare = semanage_user_extra_compare, 194 .compare2 = semanage_user_extra_compare2, 195 .compare2_qsort = semanage_user_extra_compare2_qsort, 196 .free = semanage_user_extra_free, 197 }; 198
