1 /* Copyright (C) 2005 Red Hat, Inc. */ 2 3 struct semanage_iface; 4 struct semanage_iface_key; 5 typedef struct semanage_iface record_t; 6 typedef struct semanage_iface_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 <semanage/handle.h> 16 #include "iface_internal.h" 17 #include "context_internal.h" 18 #include "database_file.h" 19 #include "parse_utils.h" 20 #include "debug.h" 21 22 static int iface_print(semanage_handle_t * handle, 23 semanage_iface_t * iface, FILE * str) 24 { 25 26 char *con_str = NULL; 27 28 const char *name = semanage_iface_get_name(iface); 29 semanage_context_t *ifcon = semanage_iface_get_ifcon(iface); 30 semanage_context_t *msgcon = semanage_iface_get_msgcon(iface); 31 32 if (fprintf(str, "netifcon %s ", name) < 0) 33 goto err; 34 35 if (semanage_context_to_string(handle, ifcon, &con_str) < 0) 36 goto err; 37 if (fprintf(str, "%s ", con_str) < 0) 38 goto err; 39 free(con_str); 40 con_str = NULL; 41 42 if (semanage_context_to_string(handle, msgcon, &con_str) < 0) 43 goto err; 44 if (fprintf(str, "%s\n", con_str) < 0) 45 goto err; 46 free(con_str); 47 con_str = NULL; 48 49 return STATUS_SUCCESS; 50 51 err: 52 ERR(handle, "could not print interface %s to stream", name); 53 free(con_str); 54 return STATUS_ERR; 55 } 56 57 static int iface_parse(semanage_handle_t * handle, 58 parse_info_t * info, semanage_iface_t * iface) 59 { 60 61 char *str = NULL; 62 semanage_context_t *con = NULL; 63 64 if (parse_skip_space(handle, info) < 0) 65 goto err; 66 if (!info->ptr) 67 goto last; 68 69 /* Header */ 70 if (parse_assert_str(handle, info, "netifcon") < 0) 71 goto err; 72 if (parse_assert_space(handle, info) < 0) 73 goto err; 74 75 /* Name */ 76 if (parse_fetch_string(handle, info, &str, ' ') < 0) 77 goto err; 78 if (semanage_iface_set_name(handle, iface, str) < 0) 79 goto err; 80 free(str); 81 str = NULL; 82 83 /* Interface context */ 84 if (parse_assert_space(handle, info) < 0) 85 goto err; 86 if (parse_fetch_string(handle, info, &str, ' ') < 0) 87 goto err; 88 if (semanage_context_from_string(handle, str, &con) < 0) { 89 ERR(handle, "invalid security context \"%s\" (%s: %u)\n%s", 90 str, info->filename, info->lineno, info->orig_line); 91 goto err; 92 } 93 if (con == NULL) { 94 ERR(handle, "<<none>> context is not valid for " 95 "interfaces (%s: %u)\n%s", info->filename, 96 info->lineno, info->orig_line); 97 goto err; 98 } 99 free(str); 100 str = NULL; 101 102 if (semanage_iface_set_ifcon(handle, iface, con) < 0) 103 goto err; 104 semanage_context_free(con); 105 con = NULL; 106 107 /* Message context */ 108 if (parse_assert_space(handle, info) < 0) 109 goto err; 110 if (parse_fetch_string(handle, info, &str, ' ') < 0) 111 goto err; 112 if (semanage_context_from_string(handle, str, &con) < 0) { 113 ERR(handle, "invalid security context \"%s\" (%s: %u)\n%s", 114 str, info->filename, info->lineno, info->orig_line); 115 goto err; 116 } 117 if (con == NULL) { 118 ERR(handle, "<<none>> context is not valid for " 119 "interfaces (%s: %u)\n%s", info->filename, 120 info->lineno, info->orig_line); 121 goto err; 122 } 123 free(str); 124 str = NULL; 125 126 if (semanage_iface_set_msgcon(handle, iface, con) < 0) 127 goto err; 128 semanage_context_free(con); 129 con = NULL; 130 131 if (parse_assert_space(handle, info) < 0) 132 goto err; 133 134 return STATUS_SUCCESS; 135 136 last: 137 parse_dispose_line(info); 138 return STATUS_NODATA; 139 140 err: 141 ERR(handle, "could not parse interface record"); 142 free(str); 143 semanage_context_free(con); 144 parse_dispose_line(info); 145 return STATUS_ERR; 146 } 147 148 /* IFACE RECORD: FILE extension: method table */ 149 record_file_table_t SEMANAGE_IFACE_FILE_RTABLE = { 150 .parse = iface_parse, 151 .print = iface_print, 152 }; 153 154 int iface_file_dbase_init(semanage_handle_t * handle, 155 const char *path_ro, 156 const char *path_rw, 157 dbase_config_t * dconfig) 158 { 159 160 if (dbase_file_init(handle, 161 path_ro, 162 path_rw, 163 &SEMANAGE_IFACE_RTABLE, 164 &SEMANAGE_IFACE_FILE_RTABLE, &dconfig->dbase) < 0) 165 return STATUS_ERR; 166 167 dconfig->dtable = &SEMANAGE_FILE_DTABLE; 168 return STATUS_SUCCESS; 169 } 170 171 void iface_file_dbase_release(dbase_config_t * dconfig) 172 { 173 174 dbase_file_release(dconfig->dbase); 175 } 176
