| 1 | /*
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| 2 | * Copyright 2012-2017 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include <openssl/crypto.h>
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| 12 | #include "internal/cryptlib.h"
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| 13 | #include <openssl/conf.h>
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| 14 | #include <openssl/x509v3.h>
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| 15 |
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| 16 | /* Multi string module: add table entries from a given section */
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| 17 |
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| 18 | static int do_tcreate(const char *value, const char *name);
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| 19 |
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| 20 | static int stbl_module_init(CONF_IMODULE *md, const CONF *cnf)
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| 21 | {
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| 22 | int i;
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| 23 | const char *stbl_section;
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| 24 | STACK_OF(CONF_VALUE) *sktmp;
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| 25 | CONF_VALUE *mval;
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| 26 |
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| 27 | stbl_section = CONF_imodule_get_value(md);
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| 28 | if ((sktmp = NCONF_get_section(cnf, stbl_section)) == NULL) {
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| 29 | ASN1err(ASN1_F_STBL_MODULE_INIT, ASN1_R_ERROR_LOADING_SECTION);
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| 30 | return 0;
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| 31 | }
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| 32 | for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
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| 33 | mval = sk_CONF_VALUE_value(sktmp, i);
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| 34 | if (!do_tcreate(mval->value, mval->name)) {
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| 35 | ASN1err(ASN1_F_STBL_MODULE_INIT, ASN1_R_INVALID_VALUE);
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| 36 | return 0;
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| 37 | }
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| 38 | }
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| 39 | return 1;
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| 40 | }
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| 41 |
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| 42 | static void stbl_module_finish(CONF_IMODULE *md)
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| 43 | {
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| 44 | ASN1_STRING_TABLE_cleanup();
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| 45 | }
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| 46 |
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| 47 | void ASN1_add_stable_module(void)
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| 48 | {
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| 49 | CONF_module_add("stbl_section", stbl_module_init, stbl_module_finish);
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| 50 | }
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| 51 |
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| 52 | /*
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| 53 | * Create an table entry based on a name value pair. format is oid_name =
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| 54 | * n1:v1, n2:v2,... where name is "min", "max", "mask" or "flags".
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| 55 | */
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| 56 |
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| 57 | static int do_tcreate(const char *value, const char *name)
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| 58 | {
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| 59 | char *eptr;
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| 60 | int nid, i, rv = 0;
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| 61 | long tbl_min = -1, tbl_max = -1;
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| 62 | unsigned long tbl_mask = 0, tbl_flags = 0;
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| 63 | STACK_OF(CONF_VALUE) *lst = NULL;
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| 64 | CONF_VALUE *cnf = NULL;
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| 65 | nid = OBJ_sn2nid(name);
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| 66 | if (nid == NID_undef)
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| 67 | nid = OBJ_ln2nid(name);
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| 68 | if (nid == NID_undef)
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| 69 | goto err;
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| 70 | lst = X509V3_parse_list(value);
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| 71 | if (!lst)
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| 72 | goto err;
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| 73 | for (i = 0; i < sk_CONF_VALUE_num(lst); i++) {
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| 74 | cnf = sk_CONF_VALUE_value(lst, i);
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| 75 | if (strcmp(cnf->name, "min") == 0) {
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| 76 | tbl_min = strtoul(cnf->value, &eptr, 0);
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| 77 | if (*eptr)
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| 78 | goto err;
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| 79 | } else if (strcmp(cnf->name, "max") == 0) {
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| 80 | tbl_max = strtoul(cnf->value, &eptr, 0);
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| 81 | if (*eptr)
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| 82 | goto err;
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| 83 | } else if (strcmp(cnf->name, "mask") == 0) {
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| 84 | if (!ASN1_str2mask(cnf->value, &tbl_mask) || !tbl_mask)
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| 85 | goto err;
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| 86 | } else if (strcmp(cnf->name, "flags") == 0) {
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| 87 | if (strcmp(cnf->value, "nomask") == 0)
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| 88 | tbl_flags = STABLE_NO_MASK;
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| 89 | else if (strcmp(cnf->value, "none") == 0)
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| 90 | tbl_flags = STABLE_FLAGS_CLEAR;
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| 91 | else
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| 92 | goto err;
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| 93 | } else
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| 94 | goto err;
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| 95 | }
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| 96 | rv = 1;
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| 97 | err:
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| 98 | if (rv == 0) {
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| 99 | ASN1err(ASN1_F_DO_TCREATE, ASN1_R_INVALID_STRING_TABLE_VALUE);
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| 100 | if (cnf)
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| 101 | ERR_add_error_data(4, "field=", cnf->name,
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| 102 | ", value=", cnf->value);
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| 103 | else
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| 104 | ERR_add_error_data(4, "name=", name, ", value=", value);
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| 105 | } else {
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| 106 | rv = ASN1_STRING_TABLE_add(nid, tbl_min, tbl_max,
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| 107 | tbl_mask, tbl_flags);
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| 108 | if (!rv)
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| 109 | ASN1err(ASN1_F_DO_TCREATE, ERR_R_MALLOC_FAILURE);
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| 110 | }
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| 111 | sk_CONF_VALUE_pop_free(lst, X509V3_conf_free);
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| 112 | return rv;
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| 113 | }
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