+static STACK_OF(GENERAL_NAME) *v2i_issuer_alt(X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK *nval)
+{
+ STACK_OF(GENERAL_NAME) *gens = NULL;
+ CONF_VALUE *cnf;
+ int i;
+ if(!(gens = sk_GENERAL_NAME_new(NULL))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ for(i = 0; i < sk_num(nval); i++) {
+ cnf = (CONF_VALUE *)sk_value(nval, i);
+ if(!name_cmp(cnf->name, "issuer") && cnf->value &&
+ !strcmp(cnf->value, "copy")) {
+ if(!copy_issuer(ctx, gens)) goto err;
+ } else {
+ GENERAL_NAME *gen;
+ if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
+ goto err;
+ sk_GENERAL_NAME_push(gens, gen);
+ }
+ }
+ return gens;
+ err:
+ sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
+ return NULL;
+}
+
+/* Append subject altname of issuer to issuer alt name of subject */
+
+static int copy_issuer(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens)
+{
+ STACK_OF(GENERAL_NAME) *ialt;
+ GENERAL_NAME *gen;
+ X509_EXTENSION *ext;
+ int i;
+ if(ctx && (ctx->flags == CTX_TEST)) return 1;
+ if(!ctx || !ctx->issuer_cert) {
+ X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS);
+ goto err;
+ }
+ i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
+ if(i < 0) return 1;
+ if(!(ext = X509_get_ext(ctx->issuer_cert, i)) ||
+ !(ialt = X509V3_EXT_d2i(ext)) ) {
+ X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR);
+ goto err;
+ }
+
+ for(i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
+ gen = sk_GENERAL_NAME_value(ialt, i);
+ if(!sk_GENERAL_NAME_push(gens, gen)) {
+ X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+ sk_GENERAL_NAME_free(ialt);
+
+ return 1;
+
+ err:
+ return 0;
+
+}
+
+static STACK_OF(GENERAL_NAME) *v2i_subject_alt(X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK *nval)
+{
+ STACK_OF(GENERAL_NAME) *gens = NULL;
+ CONF_VALUE *cnf;
+ int i;
+ if(!(gens = sk_GENERAL_NAME_new(NULL))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ for(i = 0; i < sk_num(nval); i++) {
+ cnf = (CONF_VALUE *)sk_value(nval, i);
+ if(!name_cmp(cnf->name, "email") && cnf->value &&
+ !strcmp(cnf->value, "copy")) {
+ if(!copy_email(ctx, gens)) goto err;
+ } else {
+ GENERAL_NAME *gen;
+ if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
+ goto err;
+ sk_GENERAL_NAME_push(gens, gen);
+ }
+ }
+ return gens;
+ err:
+ sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
+ return NULL;
+}
+
+/* Copy any email addresses in a certificate or request to
+ * GENERAL_NAMES
+ */
+
+static int copy_email(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens)
+{
+ X509_NAME *nm;
+ ASN1_IA5STRING *email = NULL;
+ X509_NAME_ENTRY *ne;
+ GENERAL_NAME *gen = NULL;
+ int i;
+ if(ctx->flags == CTX_TEST) return 1;
+ if(!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
+ X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS);
+ goto err;
+ }
+ /* Find the subject name */
+ if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert);
+ else nm = X509_REQ_get_subject_name(ctx->subject_req);
+
+ /* Now add any email address(es) to STACK */
+ i = -1;
+ while((i = X509_NAME_get_index_by_NID(nm,
+ NID_pkcs9_emailAddress, i)) > 0) {
+ ne = X509_NAME_get_entry(nm, i);
+ email = ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne));
+ if(!email || !(gen = GENERAL_NAME_new())) {
+ X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ gen->d.ia5 = email;
+ email = NULL;
+ gen->type = GEN_EMAIL;
+ if(!sk_GENERAL_NAME_push(gens, gen)) {
+ X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ gen = NULL;
+ }
+
+
+ return 1;
+
+ err:
+ GENERAL_NAME_free(gen);
+ ASN1_IA5STRING_free(email);
+ return 0;
+
+}
+
+STACK_OF(GENERAL_NAME) *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK *nval)
+{
+ GENERAL_NAME *gen;
+ STACK_OF(GENERAL_NAME) *gens = NULL;
+ CONF_VALUE *cnf;
+ int i;
+ if(!(gens = sk_GENERAL_NAME_new(NULL))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ for(i = 0; i < sk_num(nval); i++) {
+ cnf = (CONF_VALUE *)sk_value(nval, i);
+ if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err;
+ sk_GENERAL_NAME_push(gens, gen);
+ }
+ return gens;
+ err:
+ sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
+ return NULL;
+}
+
+GENERAL_NAME *v2i_GENERAL_NAME(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
+ CONF_VALUE *cnf)
+{
+char is_string = 0;
+int type;
+GENERAL_NAME *gen = NULL;
+
+char *name, *value;
+
+name = cnf->name;
+value = cnf->value;
+
+if(!value) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_MISSING_VALUE);
+ return NULL;
+}
+
+if(!(gen = GENERAL_NAME_new())) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
+ return NULL;
+}
+
+if(!name_cmp(name, "email")) {
+ is_string = 1;
+ type = GEN_EMAIL;
+} else if(!name_cmp(name, "URI")) {
+ is_string = 1;
+ type = GEN_URI;
+} else if(!name_cmp(name, "DNS")) {
+ is_string = 1;
+ type = GEN_DNS;
+} else if(!name_cmp(name, "RID")) {
+ ASN1_OBJECT *obj;
+ if(!(obj = OBJ_txt2obj(value,0))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_OBJECT);
+ ERR_add_error_data(2, "value=", value);
+ goto err;
+ }
+ gen->d.rid = obj;
+ type = GEN_RID;
+} else if(!name_cmp(name, "IP")) {
+ int i1,i2,i3,i4;
+ unsigned char ip[4];
+ if((sscanf(value, "%d.%d.%d.%d",&i1,&i2,&i3,&i4) != 4) ||
+ (i1 < 0) || (i1 > 255) || (i2 < 0) || (i2 > 255) ||
+ (i3 < 0) || (i3 > 255) || (i4 < 0) || (i4 > 255) ) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_IP_ADDRESS);
+ ERR_add_error_data(2, "value=", value);
+ goto err;
+ }
+ ip[0] = i1; ip[1] = i2 ; ip[2] = i3 ; ip[3] = i4;
+ if(!(gen->d.ip = ASN1_OCTET_STRING_new()) ||
+ !ASN1_STRING_set(gen->d.ip, ip, 4)) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ type = GEN_IPADD;
+} else {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_UNSUPPORTED_OPTION);
+ ERR_add_error_data(2, "name=", name);
+ goto err;
+}
+
+if(is_string) {
+ if(!(gen->d.ia5 = ASN1_IA5STRING_new()) ||
+ !ASN1_STRING_set(gen->d.ia5, (unsigned char*)value,
+ strlen(value))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+}
+
+gen->type = type;
+
+return gen;
+
+err:
+GENERAL_NAME_free(gen);
+return NULL;
+}