more explicit ANY support

libasn1compiler/asn1c_C.c

@@ -1200,10 +1200,21 @@ emit_member_table(arg_t *arg, asn1p_expr_t *expr) {
 	static int global_memb_unique;
 	int save_target;
 	arg_t tmp_arg;
-	struct asn1p_type_tag_s outmost_tag;
+	struct asn1p_type_tag_s outmost_tag_s;
+	struct asn1p_type_tag_s *outmost_tag;
 	char *p;
 
+	if(asn1f_fetch_outmost_tag(arg->asn,
+			expr->module, expr, &outmost_tag_s, 1)) {
+		outmost_tag = 0;
+	} else {
+		outmost_tag = &outmost_tag_s;
+	}
+
 	OUT("{ ");
+
+	if(outmost_tag && outmost_tag->tag_value == -1)
+		OUT("ATF_OPEN_TYPE | ");
 	OUT("%s, ", expr->marker?"ATF_POINTER":"ATF_NOFLAGS");
 	if((expr->marker & EM_OPTIONAL) == EM_OPTIONAL) {
 		asn1p_expr_t *tv;
@@ -1229,12 +1240,15 @@ emit_member_table(arg_t *arg, asn1p_expr_t *expr) {
 	}
 	INDENT(+1);
 	if(C99_MODE) OUT(".tag = ");
-	if(asn1f_fetch_outmost_tag(arg->asn,
-			expr->module, expr, &outmost_tag, 0)) {
-		OUT("-1 /* Ambiguous tag (CHOICE|ANY?) */");
+	if(outmost_tag) {
+		if(outmost_tag->tag_value == -1)
+			OUT("-1 /* Ambiguous tag (ANY?) */");
+		else
+			_print_tag(arg, outmost_tag);
 	} else {
-		_print_tag(arg, &outmost_tag);
+		OUT("-1 /* Ambiguous tag (CHOICE?) */");
 	}
+
 	OUT(",\n");
 	if(C99_MODE) OUT(".tag_mode = ");
 	if(expr->tag.tag_class) {

skeletons/constr_SEQUENCE.c

@@ -257,6 +257,14 @@ SEQUENCE_decode_ber(asn1_TYPE_descriptor_t *td,
 				edx = n;
 				ctx->step = 1 + 2 * edx;	/* Remember! */
 				goto microphase2;
+			} else if(elements[n].flags & ATF_OPEN_TYPE) {
+				/*
+				 * This is the ANY type, which may bear
+				 * any flag whatsoever.
+				 */
+				edx = n;
+				ctx->step = 1 + 2 * edx;	/* Remember! */
+				goto microphase2;
 			} else if(elements[n].tag == (ber_tlv_tag_t)-1) {
 				use_bsearch = 1;
 				break;
@@ -304,18 +312,7 @@ SEQUENCE_decode_ber(asn1_TYPE_descriptor_t *td,
 			 * or an extension (...),
 			 * or an end of the indefinite-length structure.
 			 */
-
 			if(!IN_EXTENSION_GROUP(specs, edx)) {
-				if(elements[edx].tag == (ber_tlv_tag_t)-1
-				/* FIXME: any support */
-				&& (elements[edx].flags & ATF_POINTER) == 0) {
-					/*
-					 * This must be the ANY type.
-					 */
-					ctx->step |= 1;
-					goto microphase2;
-				}
-
 				ASN_DEBUG("Unexpected tag %s",
 					ber_tlv_tag_string(tlv_tag));
 				ASN_DEBUG("Expected tag %s (%s)%s",

skeletons/constr_TYPE.h

@@ -97,6 +97,7 @@ typedef struct asn1_TYPE_member_s {
 	enum asn1_TYPE_flags_e {
 		ATF_NOFLAGS,
 		ATF_POINTER	= 0x01,	/* Represented by the pointer */
+		ATF_OPEN_TYPE	= 0x02,	/* ANY type, without meaningful tag */
 	} flags;			/* Element's presentation flags */
 	int optional;	/* Following optional members, including current */
 	int memb_offset;		/* Offset of the element */

tests/42-real-life-OK.asn1.-PR

@@ -209,7 +209,7 @@ memb_vparts_2_constraint(asn1_TYPE_descriptor_t *td, const void *sptr,
 
 static asn1_TYPE_member_t asn1_MBR_vparts[] = {
 	{ ATF_NOFLAGS, 0, 0,
-		.tag = -1 /* Ambiguous tag (CHOICE|ANY?) */,
+		.tag = -1 /* Ambiguous tag (CHOICE?) */,
 		.tag_mode = 0,
 		.type = (void *)&asn1_DEF_VariablePart,
 		.memb_constraints = 0,	/* Defer to actual type */

tests/43-recursion-OK.asn1.-P

@@ -218,7 +218,7 @@ typedef struct Choice_1 {
 
 static asn1_TYPE_member_t asn1_MBR_or[] = {
 	{ ATF_NOFLAGS, 0, 0,
-		.tag = -1 /* Ambiguous tag (CHOICE|ANY?) */,
+		.tag = -1 /* Ambiguous tag (CHOICE?) */,
 		.tag_mode = 0,
 		.type = (void *)&asn1_DEF_Choice_1,
 		.memb_constraints = 0,	/* Defer to actual type */

tests/44-choice-in-sequence-OK.asn1.-P

@@ -178,7 +178,7 @@ static asn1_TYPE_member_t asn1_MBR_b[] = {
 		.name = "d"
 		},
 	{ ATF_NOFLAGS, 0, offsetof(struct b, choice.e),
-		.tag = -1 /* Ambiguous tag (CHOICE|ANY?) */,
+		.tag = -1 /* Ambiguous tag (CHOICE?) */,
 		.tag_mode = 0,
 		.type = (void *)&asn1_DEF_e,
 		.memb_constraints = 0,	/* Defer to actual type */
@@ -235,7 +235,7 @@ static asn1_TYPE_member_t asn1_MBR_T[] = {
 		.name = "a"
 		},
 	{ ATF_NOFLAGS, 0, offsetof(struct T, b),
-		.tag = -1 /* Ambiguous tag (CHOICE|ANY?) */,
+		.tag = -1 /* Ambiguous tag (CHOICE?) */,
 		.tag_mode = 0,
 		.type = (void *)&asn1_DEF_b,
 		.memb_constraints = 0,	/* Defer to actual type */

tests/60-any-OK.asn1.-P

+
+/*** <<< INCLUDES [T1] >>> ***/
+
+#include <INTEGER.h>
+#include <ANY.h>
+#include <constr_SEQUENCE.h>
+
+/*** <<< DEPS [T1] >>> ***/
+
+extern asn1_TYPE_descriptor_t asn1_DEF_T1;
+
+/*** <<< TYPE-DECLS [T1] >>> ***/
+
+
+typedef struct T1 {
+	INTEGER_t	 i;
+	ANY_t	 any;
+	
+	/* Context for parsing across buffer boundaries */
+	ber_dec_ctx_t _ber_dec_ctx;
+} T1_t;
+
+/*** <<< STAT-DEFS [T1] >>> ***/
+
+static asn1_TYPE_member_t asn1_MBR_T1[] = {
+	{ ATF_NOFLAGS, 0, offsetof(struct T1, i),
+		.tag = (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)),
+		.tag_mode = 0,
+		.type = (void *)&asn1_DEF_INTEGER,
+		.memb_constraints = 0,	/* Defer to actual type */
+		.name = "i"
+		},
+	{ ATF_OPEN_TYPE | ATF_NOFLAGS, 0, offsetof(struct T1, any),
+		.tag = -1 /* Ambiguous tag (ANY?) */,
+		.tag_mode = 0,
+		.type = (void *)&asn1_DEF_ANY,
+		.memb_constraints = 0,	/* Defer to actual type */
+		.name = "any"
+		},
+};
+static ber_tlv_tag_t asn1_DEF_T1_tags[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
+};
+static asn1_TYPE_tag2member_t asn1_DEF_T1_tag2el[] = {
+    { (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)), 0, 0, 0 }, /* i at 15 */
+};
+static asn1_SEQUENCE_specifics_t asn1_DEF_T1_specs = {
+	sizeof(struct T1),
+	offsetof(struct T1, _ber_dec_ctx),
+	asn1_DEF_T1_tag2el,
+	1,	/* Count of tags in the map */
+	-1,	/* Start extensions */
+	-1	/* Stop extensions */
+};
+asn1_TYPE_descriptor_t asn1_DEF_T1 = {
+	"T1",
+	SEQUENCE_constraint,
+	SEQUENCE_decode_ber,
+	SEQUENCE_encode_der,
+	SEQUENCE_print,
+	SEQUENCE_free,
+	0,	/* Use generic outmost tag fetcher */
+	asn1_DEF_T1_tags,
+	sizeof(asn1_DEF_T1_tags)
+		/sizeof(asn1_DEF_T1_tags[0]), /* 1 */
+	1,	/* Tags to skip */
+	1,	/* Whether CONSTRUCTED */
+	asn1_MBR_T1,
+	2,	/* Elements count */
+	&asn1_DEF_T1_specs	/* Additional specs */
+};
+
+
+/*** <<< INCLUDES [T2] >>> ***/
+
+#include <INTEGER.h>
+#include <ANY.h>
+#include <constr_SEQUENCE.h>
+
+/*** <<< DEPS [T2] >>> ***/
+
+extern asn1_TYPE_descriptor_t asn1_DEF_T2;
+
+/*** <<< TYPE-DECLS [T2] >>> ***/
+
+
+typedef struct T2 {
+	INTEGER_t	 i;
+	ANY_t	*any	/* OPTIONAL */;
+	
+	/* Context for parsing across buffer boundaries */
+	ber_dec_ctx_t _ber_dec_ctx;
+} T2_t;
+
+/*** <<< STAT-DEFS [T2] >>> ***/
+
+static asn1_TYPE_member_t asn1_MBR_T2[] = {
+	{ ATF_NOFLAGS, 0, offsetof(struct T2, i),
+		.tag = (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)),
+		.tag_mode = 0,
+		.type = (void *)&asn1_DEF_INTEGER,
+		.memb_constraints = 0,	/* Defer to actual type */
+		.name = "i"
+		},
+	{ ATF_POINTER, 1, offsetof(struct T2, any),
+		.tag = (ASN_TAG_CLASS_CONTEXT | (0 << 2)),
+		.tag_mode = +1,	/* EXPLICIT tag at current level */
+		.type = (void *)&asn1_DEF_ANY,
+		.memb_constraints = 0,	/* Defer to actual type */
+		.name = "any"
+		},
+};
+static ber_tlv_tag_t asn1_DEF_T2_tags[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
+};
+static asn1_TYPE_tag2member_t asn1_DEF_T2_tag2el[] = {
+    { (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)), 0, 0, 0 }, /* i at 20 */
+    { (ASN_TAG_CLASS_CONTEXT | (0 << 2)), 1, 0, 0 }, /* any at 21 */
+};
+static asn1_SEQUENCE_specifics_t asn1_DEF_T2_specs = {
+	sizeof(struct T2),
+	offsetof(struct T2, _ber_dec_ctx),
+	asn1_DEF_T2_tag2el,
+	2,	/* Count of tags in the map */
+	-1,	/* Start extensions */
+	-1	/* Stop extensions */
+};
+asn1_TYPE_descriptor_t asn1_DEF_T2 = {
+	"T2",
+	SEQUENCE_constraint,
+	SEQUENCE_decode_ber,
+	SEQUENCE_encode_der,
+	SEQUENCE_print,
+	SEQUENCE_free,
+	0,	/* Use generic outmost tag fetcher */
+	asn1_DEF_T2_tags,
+	sizeof(asn1_DEF_T2_tags)
+		/sizeof(asn1_DEF_T2_tags[0]), /* 1 */
+	1,	/* Tags to skip */
+	1,	/* Whether CONSTRUCTED */
+	asn1_MBR_T2,
+	2,	/* Elements count */
+	&asn1_DEF_T2_specs	/* Additional specs */
+};
+