Joshua Brindle | 13cd4c8 | 2008-08-19 15:30:36 -0400 | [diff] [blame^] | 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 *fname, dbase_config_t * dconfig) |
| 156 | { |
| 157 | |
| 158 | if (dbase_file_init(handle, |
| 159 | fname, |
| 160 | &SEMANAGE_IFACE_RTABLE, |
| 161 | &SEMANAGE_IFACE_FILE_RTABLE, &dconfig->dbase) < 0) |
| 162 | return STATUS_ERR; |
| 163 | |
| 164 | dconfig->dtable = &SEMANAGE_FILE_DTABLE; |
| 165 | return STATUS_SUCCESS; |
| 166 | } |
| 167 | |
| 168 | void iface_file_dbase_release(dbase_config_t * dconfig) |
| 169 | { |
| 170 | |
| 171 | dbase_file_release(dconfig->dbase); |
| 172 | } |